Tuesday, December 31, 2019
Hypothetical Structure For Self Determination - 863 Words
Hypothetical Structure for Self-Determination Diverse factors boost or weaken the motivation of an individual. The self-determination hypothesis of motivation acknowledges the significance of mindfulness to inbuilt motivation. In-built motivation is independent and comes from self-generated interests and personal objectives. It creates the encouragement to act volitionally. It is more projecting of positive emotional outcomes and diligence compared to motivation built externally (Saltzman 2014). The fundamental elements of intrinsic motivation are independence, competence, and relations with others. Informational feedback is generated by the social response to individual s activities. Positive responses enhance independent motivation while negative response diminishes it and creates a lack of motivation to act. Negative feedback reduces behaviors that fail to elicit the preferred reaction. On the other hand, extrinsic motivation emanates from an individual or the society. It can be internalized if it is concordant with intrinsic motivations. Nevertheless, modifying behavior relating to non-concordant external influences could create the logic of being outwardly compelled, incompetent, and detached from the others. According to the study, classroom plays the role of a place where necessary control on students is done. Hypothetical Structure for Self-Efficacy An individual s self-efficacy is his or her faith in his or her capacity to build up, master particular skills, andShow MoreRelatedThe Concept Of The Looking Glass Self1423 Words à |à 6 Pagesprocesses and the determination of the human life as a manifestation of the externally observable behavior (by analogy with the animal reaction). The interactionist approach in sociology has been formed and it refers to the integrity of the human personality and self-determination in the micro-social environment. In this research paper, I want to consider the interactionist theory, as it perfectly reflects micro-social processes and explain the nature of human identity. ââ¬Å"The Selfâ⬠Concept The conceptRead MorePoetry And Science Poem Analysis1561 Words à |à 7 Pagesseeing only a singular layer in which the reader is coercing a specific meaning that is easily digestible and relatable. Rather than engaging in such false readings, or ââ¬Ëbad naturalisationââ¬â¢ Forest-Thomson demands a closer inspection of the genetic structure of a poem. To give each base element, or section of the sequence, the time and emphasis needed to understand and negotiate the importance these elements have on the poem as a whole. In this manner, it can be seen that her theory of poetry borrowsRead MoreCommunication Is The Preeminent Intellectual Species On Planet Earth987 Words à |à 4 Pagespeople exchanging information through peripheral brain signals. Such achievements would drastically alter the trajectory of human development and create new epistemological paths of truth. The scenarios mentioned are not intended to serve as hypothetical models; on the contrary, they are accounts of my own history. Since the age of 14-months-old I recognized my development as being accelerated compared to other toddlers, and adults for that matter. In fact, my comprehension and mastery of twenty-oneRead More Intrinsic Human Dignity and Equality in Relation to Liberal Democracy 1748 Words à |à 7 Pagesthe previously mentioned goods. Democratic practices, in short, are ensured by democratic institutions. Popular rule does not occur by simple fiat, but through institutional frameworks. Robert A. Dahl in his text, On Democracy, proposed a hypothetical situation to demonstrate the aforementioned point, ââ¬Å"Let us suppose, then, that in order to achieve certain ends, you and several hundred other persons agree to form an associationâ⬠¦at the first meeting, let us further assume, several members suggestRead MoreAn Essay On Foucault s Virtue1376 Words à |à 6 Pagessex. In Panopticism, Foucault states that, in society, it does not really concern who is having the power, but that power is shaped by the situation. It is referring the fact that in Panoptican, the definite design shapes the power of structure. As the structure and other matters like the restricted communications hostages can interact with each other or who and what they understand as the environment. So in that case, the whole perspective is appropriated together and provides escalation to theRead MoreAn Essay On Foucault s Virtue1480 Words à |à 6 Pagesinfluence is formed by the position. Furthermore, it is referring the fact that in Panoptican, the certain design may characterize the power of structure. The restriction on communication of hostage can interconnect them with each other, or who and what they will recognize within the environment of being a prision. This can simply defines as the structure and other matters. Then in that circumstance, the entire perspective is agreed together and delivered escalation to the higher power, so that theRead MoreAnalysis Of The Love Song Of J. Alfred Prufrock1231 Words à |à 5 Pagesactions for himself. Prufrock desires to speak to a woman about his love for her, but he continuously hesitates while attempting to do so. This poem demonstrates a theme of fragmentation, which is a theme that we can see throughout the entire structure of the work. The theme is evidenced by not only Eliotââ¬â¢s writing style, but by the use of space and time and the personality of J. Alfred Prufrock as a character. The Love Song of J. Alfred Prufrock depicts the conscious thoughts of a single,Read MoreThe Child Is A Child Essay1433 Words à |à 6 Pageshad the chance to make this conclusion for himself. Therefore, because Marcus choice in toys and non-rambunctious demeanor, his sexuality was chosen for him because it was outside of the model of what it means to be a male child. Though, this is hypothetical scenario, it is a common one. Within western culture, before birth and even conceptions people opt whether or not they would prefer a girl or boy. During pregnancy and even afterwards a newborn child is expected to either be a boy or a girl basedRead MoreAction Research Project : Oversite Of Operations Essay1536 Words à |à 7 Pagesstarts with key participants that will be critical to the success of an action research project by stakeholders of some issue that needs attention for this implementation of change. Further, we need to recognize the qualities, convictions, and hypothetical viewpoints from real life experiences related to the issues that are being identified as needing change with the participants involved in their core interest. For instance, if a stakeholder is worried about the expanding products or equal considerationRead MoreAction Research Project : Oversite Of Operations Essay1542 Words à |à 7 Pagescritical to the success of an action research project or activity analysts inquiring usually by stakeholders of some issue that needs attention for this ultimate implementation of change. Further, we need to recognize the qualities, convictions, and hypothetical viewpoints from real life experiences related to the issues that are being identified as needing change with the participants involved in their core interest. For instance, if a stakeholder is worried about the expanding products or equal consideration
Sunday, December 22, 2019
Netherlands Institute of Radio Astronomy-ASTRON - 2089 Words
1. Company Description Astronomy is an observational science, relying on remote sensing of the distant Universe to advance understanding of its content and evolution. (ASTRON) General information: â⬠¢ Name: ASTRON (the Netherlands Institute for Radio Astronomy) â⬠¢ Size: approximately 180 employees (200 including JIVE and NOVA). â⬠¢ Website: www.astron.nl â⬠¢ Contact person: Diana Verweij (HR manager) â⬠¢ Phone number: 0521-595100 â⬠¢ Email address: verweij@astron.nl ASTRON is the Dutch Institute for Radio Astronomy located in Dwingeloo, the Netherlands. It was founded on 23 april 1949 and set up as a foundation under Dutch law, moreover it is also an institute of the Netherlands Organization of Scientific Research (NWO). ASTRONs astronomers and engineers have an outstanding international reputation for fundamental research in galactic and extra-galactic astronomy, and novel technology development. (ASTRON) The main goal of ASTRON is to make discoveries in radio astronomy happen. In order to achieve this goal the institute provides front-line capabilities for its own astronomers in-house as well as for the international community (ASTRON). 2. What is the relation between the corporate strategy and the HRM strategy? The overall strategy of ASTRON is to do fundamental research in radio astronomy and science, construction of instruments for radio astronomy, and to facilitate radio astronomy. (Diana, 2014) To do so, the institute makes use of the Westerbork
Saturday, December 14, 2019
Vision For The English Uplands In 2050 Environmental Sciences Essay Free Essays
string(156) " tons of CO2 being stored \( Defra, 2010 \) , there is 15,890ha of cover bog in the Peak District National Park entirely \( Moors for the Future, 2007 \) \." Introducing the English highlands. The English highlands ( figure 1 ) are home to over 800,000 people in rural countries and 1.2 million in more urban countries ( CRC, 2010 ) . We will write a custom essay sample on Vision For The English Uplands In 2050 Environmental Sciences Essay or any similar topic only for you Order Now The landscape reflects centuries of human direction in the past and is maintained by continued stewardship, incorporating extremely valued and visited countries with a wealth of cultural and natural assets that provide a wealth of chance and potency ( CRC, 2010 ) . Despite this, most of the highlands are designated by the European Commission as Badly Disadvantaged Areas ( SDAs ) or Less Favoured Areas ( LFAs ) ( figure 2 ) , due to their low agricultural potency ( CRC, 2010 ) . It has been suggested that this may wrongly act upon determinations associating to the English highlands ( CRC, 2010 ) . The economic system and landscape of the highlands is particularly delicate in the current economic clime ( Butterworth, 2011 ) , which can take to the loss of important local employers ( CRC, 2010 ) . However, the highlands have the potency to back up a green economic system and low C hereafter by the coevals of valuable public goods and market merchandises ( CRC, 2010 ) . Whilst there is grounds of concern enterprise, endeavor and energy, endeavor is limited by few employment chances, peculiarly in more distant countries, and those that exist are frequently low pay and seasonal ( CRC, 2010 ) . The bulk of people in the highlands are employed in touristry related industries, sweeping, retail and fabrication ( CRC, 2010 ) . Land based employment makes up 5.2 % of highland workers ( CRC, 2010 ) . Figure 1: Map of England to demo SDAs and LFDs ( CRC, 2010 ) . Land usage industries in the highlands Land uses in the highlands can do struggle, but frequently can be in harmoniousness with each other. One manner to place utilizations of English highlands is to split them into purveying, modulating and cultural services ( CRC, 2010 ) . In this manner, it becomes easier to place struggles and countries of complementarity. Provisioning Regulating Cultural Food ( farm animal ) Climate ordinance Tourism Timber Air quality ordinance Diversion e.g. walking, field athleticss Minerals Water quality ordinance Aestheticss Energy Flood hazard bar Cultural heritage Fresh H2O Wildfire hazard bar Biodiversity Water, clime alteration and agriculture patterns 70 % of the UK ââ¬Ës imbibing H2O is sourced from the highlands ( CRC, 2010 ) . The UKPC ( 2010 ) undertaking that the Lowlandss will go hotter and desiccant and hence the highlands may go an even more of import H2O beginning ( Natural England, 2009 ) . Land direction in the highlands significantly impacts river flows and inundation hazards ( CRC, 2010 ) . Climate alteration is projected to increase inundation hazard in the hereafter ( CRC, 2010 ) . A turning job is brown H2O from peat dirts, which poses a challenge to imbibing H2O proviso in the highlands ( CRC, 2010 ) ; in fact H2O is going browner in many highland countries ( Natural England, 2009 ) . Removing coloring material is expensive and uses important sums of energy and chemicals which produce a sludge byproduct ( Natural England, 2009 ) . Soil compression caused by croping farm animal, blocked drains on peat dirts and remotion of chaparral and trees can do reduced absorbancy of H2O catchments ( Natural England, 2009 ) . Farming and the environment Farming in the uplands consists chiefly of farm animal agriculture ; 44 % of engendering Ewe and 30 % of beef cattles are farmed in the English highlands ( CRC, 2010 ) . Highland farms are frequently particularly vulnerable to policy reform and economic alteration ( National Trust, 2011 ) . It has been suggested that 1000s of occupations depend on highland agriculture, for illustration the highlands in Yorkshire provide 34,000 occupations in agribusiness and touristry, supplying ?1.8bn in gross revenues ( Butterworth, 2011 ) . The CRC ( 2010 ) studies that many highland husbandmans are disquieted about the economic impacts of future CAP reforms. Butterworth ( 2011 ) argues that farming in the highlands must be earnestly considered in current CAP dialogues to safeguard the hereafter of highland agriculture. Domestic animate being farming for nutrient is extremely carbon intensifier and contributed about 18 % to anthropogenetic clime alteration in 2006 ( CIWF, 2009 and FAO, 2006 ) . With universe meat ingestion projected to increase from 229m metric tons in 2001 to 465m metric tons by 2050 ( FAO, 2006 ) , stairss need to be taken to cut down this end product. Hotter drier summers may take to decreased handiness of feedcrops and H2O for domestic animate being agriculture ( CIWF, 2009 ) . An increasing population may take to less land handiness, as infinite to farm farm animal and turn their nutrient competes with infinite to construct houses, works woods and farm harvests and biofuel ( CIWF, 2009 ) . Livestock agriculture has declined due to the de-coupling of payments from production, the impacts of Foot and Mouth and de-stocking as a consequence of Single Farm Payment and to run into environmental demands in order to have subsidies from understandings such as the Higher Level Stewardship ( HLS ) strategy and Uplands Entry Level Scheme ( UELS ) ( which are frequently indispensable for endurance of farm concerns ) . This is an country of struggle ; conservationists encourage de-stocking to cut down overgrazing and protect home grounds, whereas hill husbandmans believe the pattern is misguided as it undermines traditional hill farming patterns ( CRC, 2010 ) . Many perceive de-stocking determinations to be non-participatory, top-down and ignorant of local cognition ( CRC, 2010 ) . Farmers feel that the bulk of parks are presently over or under-grazed due to inadequate guidelines ( FCC, 2010 ) . Overgrazing can do dirt eroding, release of C shops and altered river flow and deepness ( Defra, 2010 ) . Some of this is due to overgrazing of globally rare cover bog, which is protected by UKBAP position and active cover bog is included in the EC Habitats and Species Directive ( Defra, 2010 ) . Blanket bog presently covers 4 % of England and supports works species such as ling ( Calluna vulgaris ) cross-leaved heath ( Erica tetralix ) and the Sphagnum species, which vary regionally ( Defra, 2010 ) . Animal species found here include the great xanthous humblebee ( Bombus distinguendus ) , dragonfly gatherings and the internationally protected aureate plover ( Pluvialis apricaris ) ( Defra, 2010 ) . Blanket bog is England ââ¬Ës largest C shop with about 300 million metric tons of CO2 being stored ( Defra, 2010 ) , there is 15,890ha of cover bog in the Peak District N ational Park entirely ( Moors for the Future, 2007 ) . You read "Vision For The English Uplands In 2050 Environmental Sciences Essay" in category "Essay examples" Defra ( 2010 ) suggests that overgrazing, run outing and firing in the highlands has resulted in 381,000 metric tons of C to be released yearly. Carbon released from cover bog could go an even more important issue in the hereafter, as the hotter summers and heater winters and alterations in precipitation projected for the hereafter ( UKCP, 2010 ) could alter peatlands from a C sink into a C beginning ( CRC, 2010 ) . Forestry and preservation Woodland and forestry makes up 12 % of the highlands, which is largely managed by The Forestry Commission ( CRC, 2010 ) . Positive environmental benefits provided by tree planting in the highlands include renewable energy production, reduced dirt eroding, improved C segregation, reduced flooding hazards and improved H2O quality ( CRC, 2010 ) . Other benefits include the creative activity of employment from bio-energy strategies ( CRC, 2010 ) . At present clip it is ill-defined what the national guiding scheme for forestry is, as an independent panel is being established to see future forestry policy ( Spelman, 2011 ) . Diversion, preservation and agriculture patterns Diversion in the highlands includes out-of-door escapade, game shot ( CRC, 2010 ) and hill walking ( Natural England, 2009 ) . Around 40 million people visit National Parks in the English Uplands yearly, passing about ?1.78bn ( CRC, 2010 ) . English highlands contain 86 % of unfastened entree land in England ( CRC, 2010 ) . One ground for this may be that National Parks and Areas of Outstanding Natural Beauty ( AONBs ) make up 75 % of the highlands and 53 % of England ââ¬Ës Sites of Special Scientific Interest ( SSSIs ) are situated at that place ( CRC, 2010 ) . Historic characteristics in the uplands face menaces from overgrazing and dirt compression, undergrazing and chaparral and bracken invasion, and hapless direction of the historic environment for biodiversity and other ecosystem services ( Natural England, 2009 ) . It is frequently voluntary administrations that engage in custodies on preservation and protection of the environment and heritage characteristics and supply recreational and educational activities ( CRC, 2010 ) , which has a positive impact on the touristry industry, as it is the beautiful environment and cultural heritage that tourists visit the highlands to see. The impacts of touristry on the environment in the uplands include increased fire hazard, dirt and pathway eroding which causes increased C loss from dirt and increased C emanations from private conveyance ; for illustration 93 % of all Lake District tourers travel by auto ( Natural England, 2009 ) . However, these issues can supply an chance for community coherence ; for illustration voluntaries in the Lake District are presently transporting out footpath Restoration work ( Natural England, 2009 ) . 5.5 % of English highlands is covered by heather moorland, some of which is managed for grouse ( Moors for the Future, 2007 ) . Grouse hiting for diversion has existed in the Northern highlands for over 150 old ages ( Natural England, 2009 ) . Moors for the Future ( 2007 ) suggest that long-run grouse direction has changed cover bogs into heather moorland. Natural England suggests that merely 14 % of moorland SSSIs in England are in favorable status due to overgrazing and inappropriate combustion ( Moors for the Future, 2007 ) . Controlled combustion has been increasing over the last 30 old ages ( Yallop, 2006 ) . Appropriate combustion can better biodiversity by making a wider scope of home ground, for illustration, the aureate plover prefers short flora ( Moors for the Future, 2007 ) and moorland direction for grouse has expanded their scope ( Game A ; Wildlife Conservation Trust, 2011 ) . However, this disadvantages other species, for illustration those that require tall ling ( M oors for the Future, 2007 ) . Traditional methods of firing rhythms have caused struggle, for illustration in 2003 English Nature blamed grouse directors for irresponsible moorland combustion in a particular protection country ( BBC News, 2003 ) . Regular burn rhythms cut down wildfire hazard by cut downing the sum of old ling ( fuel ) ( Moors for the Future, 2007 ) . Therefore, appropriate combustion may be an of import direction technique in the hotter, drier summers of the hereafter projected by the UKCP ( UKCP, 2010 ) . In 1992-1997 the joint bird of prey survey took topographic point in Langholm, Scotland ( Langholm Moor Demonstration Project, 2011 ) . The intent of the survey was to happen out the effects of non pull offing moorland for grouse ( Bellamy, 2005 ) . The consequences showed that biddy harrier Numberss increased significantly ( figure 3 ) , a brace of mobile falcons moved into the country and all moorland bird, including grouse, Numberss decreased significantly ( Bellamy, 2005 and Langholm Moor Demonstration Project, 2011 ) . The survey compared Langholm to nearby managed Moors and found that the Langholm grouse population failed to retrieve from the parasitic disease Strongylosis during the Joint Raptor Study when biddy harasser Numberss had increased, whereas they recovered good in the nearby managed Moors ( figure 4 ) . Four old ages after the survey, hen harrier Numberss had decreased to two braces ( figure 3 ) due to reduced quarry ( Bellamy, 2005 ) . This had a negative impact no n merely on wildlife preservation, but on touristry and diversion excessively, which in bend negatively impacted local concerns such as stores and hotels that had antecedently received good income from taws and bird spectators ( Bellamy, 2005 ) . Figure 2: The ruddy line shows Numberss of engendering biddy harasser braces at Langholm and the green saloon chart shows the figure of biddy harasser cheques at Langholm ( right axis ) ( hypertext transfer protocol: //www.langholmproject.com/raptors.html ) . Figure 4: Number of grouse shooting at Langholm ( green ) compared to two nearby Moors ( brown and Grey ) . The cyclic alterations reflect periodic parasitic disease Strongylosis ( hypertext transfer protocol: //www.langholmproject.com/grouse.html ) . The Joint Raptor Study suggests that responsible grouse direction does non conflict with bird preservation and can really be good ( Bellamy, 2005 ) . Unfortunately, struggles still exist and some people regard the violent death of grouse for athletics as inhumane. However, Bellamy ( 2005 ) argues that possibly it is better to hold free scope grouse who are killed immediately than utilizing the land for big farm animal farms where the animate beings have a decreased quality of life. An illustration of diversion, farming and preservation bing in harmoniousness occurs at the 5,500ha Bolton Abbey Estate in North Yorkshire, where managed ling Moors are classed as a SSSI, a European Special Area of Conservation for its works communities and European Special Protection Area for its bird population ( Natural England, 2009 ) . The land supports and provides grouse shot, recreational walking, educational visits, farm animal graze, heather honey production, sustainable forest, rich biodiversity and a C shop in the peat dirts ( Natural England, 2009 ) . The Vision in 2050 The highlands are considered to be a national plus, with important environmental, cultural and societal value and chance ( CRC, 2010 ) supplying people with procedures necessary for life such as nutrient, H2O, civilization and diversion. The abundant and diverse scope of wildlife exists in the abundant and diverse scope of good quality home grounds, which are valued and protected by the people. Farming patterns remain largely traditional and do minimum injury to the environment, and husbandmans receive a good income. Restored cover bog shops huge sums of C. The highlands are no longer regarded as countries of terrible disadvantage but alternatively countries of chance, as alterations in the yesteryear have resulted in the creative activity of many occupations and chances for sustainable concern, ensuing in a thriving, happy community. The land and all its natural and cultural assets are managed sustainably. Policy and determination devising utilises the bottom-up attack and involves local communities and is antiphonal to altering state of affairss. Top Ten Menu of Actions All determinations should be more participatory and area-specific Policy should non be nescient of local cognition ( FCC, 2010 and CRC, 2010 ) . Alternatively it should take into history the cognition and experience of local people ( FCC, 2010 ) . Policy should be flexible and antiphonal to alter ( CRC, 2010 ) . Management determinations should be made locally ( FCC, 2010 ) . Safeguarding H2O and cut downing inundation hazard Planting more trees and chaparral to increase the absorbancy of H2O catchments and responsible decrease overgrazing, combustion and land drainage would cut down deluging hazard ( Natural England, 2009 ) . A better apprehension of drainage forms across each river catchment and how land direction influences them is required ( CRC, 2010 ) . Reducing overgrazing reconstructing degraded moorland may assist to better H2O coloring material ( Natural England, 2009 ) . Improved forest direction More forest should be planted ( Natural England, 2011 ) . Forests should be more connected to assist wildlife adapt to climate alteration ( Natural England, 2011 ) . Improved grazing direction Croping should be limited to identified suited specific countries of land. There should be limited to no croping on protected moorland. Farmers should recognize that nutrient production from farm animal is interlinked with other systems such as H2O quality ( Natural England, 2011 ) . Stocking rates should be decided locally. Education for the populace and for concerns Essential highland services should be recognised by all ( CRC, 2010 ) . Upland instruction programmes and activites should be implemented to enthuse and actuate people ( Natural England, 2011 ) . Promoting green endeavor The UK has a duty to cut down C emanations ( Guardian.co.uk, 2008 ) . In line with this, green engineerings need to be utilised to their full potency. Bio-energy strategies based on forest biomass should be implemented throughout the highlands to lend to upland economic systems and make employment ( CRC, 2010 ) . Renewable energy concerns ( H2O power, solar, wind engineering etc ) should be encouraged ( Natural England, 2011 ) . Support should go available for green endeavor to let the highlands to make its full economic potency ( CRC, 2010 ) . Secured hereafter for farming At least one land-based college to present farm direction classs should be in each vicinity ( FCC, 2010 ) . This should assist to guarantee immature people learn the accomplishments necessary for highland agriculture. A alteration in highland policies A flexible and antiphonal new national scheme that is integrated across sectors, administrative countries and sections should be implemented, based on local cognition and scientific fact ( CRC, 2010 ) . The new national scheme would cut down bureaucratism, duplicates and the inefficiencies present in current policy ( CRC, 2010 ) . This would let the people and concerns of the highlands to better understand how they can protect and heighten the highlands ( CRC, 2010 ) . To guarantee effectual execution an single accountable to Curates of BIS, CLG, DECC and DEFRA should be appointed ( CRC, 2010 ) . Policies should put out clear aims and marks and the effects should be monitored so feedback can be provided to husbandmans ( FCC, 2010 ) . This will enable them to present better environmental results ( FCC, 2010 ) . Continued preservation All concerns and substructure should be sited to understate negative impacts on the environment. Existing preservation guidelines should be improved and adhered to. Grouse direction should go on, but be sensitive to preservation, diversion and agriculture demands. Co-operation All stakeholders in the highlands should be encouraged to co-operate with each other to accomplish long term consequences and foolproof support ( Natural England, 2011 ) . Decision The uplands face a hereafter of uncertainness, but this provides great chance. With everyone working to back up and heighten the highlands, this vision can be used to assist continue the positive and understate the negative facets of the highlands ( Natural England, 2011 ) . How to cite Vision For The English Uplands In 2050 Environmental Sciences Essay, Essay examples
Friday, December 6, 2019
Liberia Persuasive Essay Example For Students
Liberia Persuasive Essay This paper is about a small country on the west coast of Africa called Liberia. It is a country built with the help of The American Colonization Society. I wasestablished to place freed blacks in the days of slavery in the United States inthe 1800s. The government was modeled after of the United Stats. Monrovia, thecapital and principal, port is named after a president of the united statesJames Monroe. This country has historical significance for african Americans. As Africas oldest republic, established by former black American slaves,Liberia played and important role as a model for African colones seekingindependence. HISTORYLiberias tribal peoples migrated to the area between the 12th and 16thcenturies. The Portuguese arrived in 1461 and began a trade in ivory, pepper,and later in slaves. In 1820, the first colonists arrived. Their successfulsettlement was named Monrovia in 1824. More colonists gradually arrived andestablished separate colonies. In 1847 the colonies united and Liberia becamethe first independent republic in black Africa. The new nation faced many problems. Some of them were tribal wars, lowexports, and land claimed by other countries. Liberia was able to maintain itsindependence only with the help of the United States. Following World War II,the modern port, airport, hospitals, hydroelectric station, and other projects,all financed by the United States, were opened. There has been frequentmilitary conflicts and civil wars. In August 1990, forces from several Africancountries entered Liberia to try and stop the bloody civil wars. The fightingonly became worse and the Prospects of a negotiated settlement were dim. LAND AND RESOURCESLiberias straight sandy coast is 350 miles long. It is broken bylagoons and mangrove swamps. It gives way to a low rolling plain about 20 mileswide. Further inland, foothills ranging in height from 600 to 1000 feet highare found. They become mountains in the north and east. The highest point inthe country is Mt. Wutuvi which rises to 4,531 feet. Land area of the countryis 43,000 square miles. Liberias rivers are short and flow parallel to one another from themountains to the ocean. The largest rivers are the St. Paul, St. John, andCavalla. Liberias tropical climate is hot and humid. The usual temperatureranges from 60 degrees to 87 degrees. Annual rainfall, as much as 177 inches atthe coast, gradually decreases inland to 96 inches. The rainy season occursbetween May and October. A dusty winter wind blows during December. There are 90 different kind of usable wood in Liberias vast timberresources. Mineral resources include large deposits of iron ore, diamonds, andgold. The country is rich in wildlife. More than 100 species of mammals haveso for been identified. There are fifteen species belonging to the cat family,among which the largest is the leopard. The number of leopards has beendecreasing rapidly along with the elephant and bush cow. Monkeys, chimpanzees,and antelopes swarm. two rare mammals found here are the manatee and the pygmyhippopotamus. In addition to mammals, there are more that 100 species of birds,including eagles, kites, and hawks. PEOPLELiberians of black American ancestry who migrated from North and SouthAmerica between 1820 and 1856 are known as Americo- Liberians. They live alongthe coast and make of up about 5 percent of the more that 2 million population. The bulk population consist of native cultural groups. Each has its ownlanguage. There is also a large group of English speaking people. The largestnative group is the Kpelle which is 19% of the population. The Bassa groupmakes up 14% of the population. It is estimated that 18% of the people practicetraditional African religions. About 68 percent are Christians and about 14percent are Islamic. Liberia is officially Christian. .u204f9308e659b79c538e8e56c97ce724 , .u204f9308e659b79c538e8e56c97ce724 .postImageUrl , .u204f9308e659b79c538e8e56c97ce724 .centered-text-area { min-height: 80px; position: relative; } .u204f9308e659b79c538e8e56c97ce724 , .u204f9308e659b79c538e8e56c97ce724:hover , .u204f9308e659b79c538e8e56c97ce724:visited , .u204f9308e659b79c538e8e56c97ce724:active { border:0!important; } .u204f9308e659b79c538e8e56c97ce724 .clearfix:after { content: ""; display: table; clear: both; } .u204f9308e659b79c538e8e56c97ce724 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u204f9308e659b79c538e8e56c97ce724:active , .u204f9308e659b79c538e8e56c97ce724:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u204f9308e659b79c538e8e56c97ce724 .centered-text-area { width: 100%; position: relative ; } .u204f9308e659b79c538e8e56c97ce724 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u204f9308e659b79c538e8e56c97ce724 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u204f9308e659b79c538e8e56c97ce724 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u204f9308e659b79c538e8e56c97ce724:hover .ctaButton { background-color: #34495E!important; } .u204f9308e659b79c538e8e56c97ce724 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u204f9308e659b79c538e8e56c97ce724 .u204f9308e659b79c538e8e56c97ce724-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u204f9308e659b79c538e8e56c97ce724:after { content: ""; display: block; clear: both; } READ: The House on Mango Street House Mango Street EssayAlmost half of the countrys city population lives in the capitol ofMonrovia, which is the largest city. The population of Monrovia was 425,000 in1984. Education was formerly provided by Christian missions but most schoolsare now government operated. Although education is free and required betweenthe ages of 6 and 16, less than half of the school-age children attend, partlybecause of a teacher shortage. The University of Liberia was founded in 1862. It is located in the capitol city of Monrovia. ECONOMYMost of Liberias workers work in farming. It is the most importanteconomic activity for more than 68% of the people. They mostly grow what theyuse. Rubber is a commercial crop grown on plantations which employ about halfof those who work for money. The first
Friday, November 29, 2019
Monday, November 25, 2019
The Life Processes essays
The Life Processes essays The best way to distinguish a living organism from a non-living organism is to determine whether it does or does not have a metabolism. A metabolism is the ongoing interrelated series of chemical interactions taking place in living organisms that provide the energy and nutrients needed to sustain life. Regulation, Growth, Nutrition, Excretion, Synthesis, Transport, Respiration, and Reproduction are the processes that make up the metabolism and are known as lifes processes. Regulation, also known as homeostasis, helps the body maintain a stable internal environment. If for some reason this stable environment is disconcerted, the organism will no longer be able to stay alive. Growth is the process that regulates the development and increase in size of an organism. Growth is extremely dependent on Nutrition. Nutrition is the process that utilizes food in order to grow. It is made up of three parts, Ingestion, Digestion, and Egestion. Ingestion is the taking in of the food, Digestion is the break down of the food from larger to smaller molecules, and Egestion is the undigested waste. Excretion is the life process that deals with wastes, after food is utilized for nutrition, the products no longer needed exit the body. Synthesis is the chemical process of smaller molecules evolving into larger molecules. Transport, the fifth life process, controls the movement of nutrients in and out of cells. The circulatory system is an organized transportation unit found in complex living organisms. Respiration is the process that releases energy from food with the help of ATP. The last life process is Reproduction. Reproduction allows for an organism to make its own kind to prevent extinction. There is asexual reproduction and sexual reproduction. In sexual reproduction, two cells from different organisms combine to produce a new being. In asexual reproduction, the newly born organism has only one parent. ...
Thursday, November 21, 2019
European Union should stop supporting Airbus Essay
European Union should stop supporting Airbus - Essay Example with manufacturing costs, the company has managed to grow its market share and improve its manufacturing to the point where Boeing now claims dominance in market share and revenues worldwide. Airbus has taken in over US$13 billion in subsidies since its founding, yet the company continues to ask its government shareholders for more subsidies to continue to compete against its rival. Subsidies cost the European taxpayer, and support the airlines which buy planes. Each Euro which is taken from European taxpayers could be better employed by direct consumption or investment in private enterprise, which would result in the application of market reasoning to funds usage. The reasoning used to support Airbus is the same as the Common Agricultural Policyââ¬âthat farmers (or aircraft employees) cannot be competitive on their own, and need to have subsidisation in order to maintain employment and compete on world markets. The reasoning used by both is the same: both are ââ¬Å"bridgeâ⬠financings, and should not have to be made all the time, just during an ââ¬Ëadjustment period.ââ¬â¢ In fact, Airbus, as with European farmers, has grown used to government subsidisation, and has not adjusted its policies to improve its competitive position. Governments justify their continuing support in Airbus on the basis of the number of jobs created or maintained. They do not mention the opportunity cost of employing that capital in other industries, or of giving investors the capital in order to make rational business decisions. The governments of Germany and France, far from aiding Airbus and its ability to compete with Boeing, have placed conditions which make it impossible for the company to be as cost- or capital-effective as the company from Chicago. Boeing has been able to accelerate development and production of its 777 and 787 aircraft by seeking the best industrial partners from around the world. It has thus reduced its own capital requirements in new models by off-loading
Wednesday, November 20, 2019
How advertising has changed the perception of womens self-esteem Essay
How advertising has changed the perception of womens self-esteem - Essay Example This essay "How advertising has changed the perception of womenââ¬â¢s self-esteem" describes the alteration in womenââ¬â¢s self-esteem brought by the media and advertising as they experience great pressure to cope and adapt to the world around them. Contemporary western culture strongly eulogizes the virtues of products and interventions which seek to enhance oneââ¬â¢s physical appearance, through aggressive advertisement campaigns aimed at appealing to the sensibilities of the vulnerable target groups ââ¬â the female consumers. This is evident from the gamut of television advertisements promoting and advocating the merits of medical alterations and the use of cosmetic products which promises the proverbial "fountain of youth" to the ageing population, and enhanced sex appeal to the youth. Such an increased penetration of medical marketing and cosmetics as tools to increase one's social standing and elevate their likeability within the contemporary society has generated a greater awareness regarding such products and at the same time, significantly transformed the very definition of "ideal beauty". It now encompasses a term which refers to the achievement of unrealistic beauty standards which are acquired through the normalization of an individual's body which are in sync with the digitally enhanced images and those unattainable through natural means, i.e., cosmetic surgery. The fixation with slenderness as an ideal body type and an unrivalled eagerness to conform to the widely accepted social standards of beauty has provided an added boost to the cosmetics industry.
Monday, November 18, 2019
Marketing transportation Essay Example | Topics and Well Written Essays - 500 words
Marketing transportation - Essay Example Managers within the mid-level within the business division make them. Functional-level strategies concerns single functional undertakings and related concepts that allow for the establishment of tactical decision. It concentrates on comparatively limited plan offering objectives for various functions, allotment of resources amongst diverse operations within certain functional divisions. The logistic strategy bears connections with the corporate strategy since logistics offers input in the creation of corporate strategy. Logistic strategy is affected the objectives presented by corporate and business-level strategies. Additionally, logistic strategies are affected by the strategic decisions made in various sectors of functional divisions of marketing with manufacturing. The capacity of logistic function to effect the triumph of a corporation grounds from the capacity of the logistic manager to create and employ strategies that are associated with corporate strategy. Performance measurement can be considered intricate within a global logistic context given that in the measurements, there is assortment or diversity in various equipments utilized in terms of category, magnitude and commodities. Therefore, the measurements cannot be considered simple since measurements have to be established for every component. Information is considered quite influential in relation to supply management and logistics. Extensive familiarity and visibility within these areas allows for replacement of inventories with data. Extensive knowledge concerning consumer demands through sale point information assists in improving planning and lessens inconsistency with the supply chain. It allows for excellent synchronization of various concepts such as marketing and supply via ERP tools. It ensures updated order processing and diminished lead times achieved through synchronized logistic data arrangements. Utilization of
Saturday, November 16, 2019
Production of Pure Lipases
Production of Pure Lipases Most Rhizopus lipases described in the literature are produced by their host cells in very small amounts, which is not suitable for large-scale industrial applications. Another drawback of working with native microorganisms is that Rhizopus sp. usually produces different isolipases with different biocatalytic properties, which complicates biocatalytic application with unwanted side effects caused by unrelated enzymes (67). Thus, in order to implement more industrial lipase applications, one of the most promising strategies is to produce heterologous lipases in a host microorganism which have the advantages to minimize the complexity of the bioprocess, to facilitate the more economic production of large quantities of pure lipases and to reduce costs (68). Rhizopus species was mainly divided into three groups, including R. oryzae, R. microsporus, R. stolonifer (69). Until now, the lipase genes from all these three groups have been cloned. Consistent with the proposal that many Rhizopus isolates are actually the same organism (69), nearly complete identities were observed in the lipase genes from the genus Rhizopus. In the R. oryzae group, lipases from R. niveus IFO 9759 (70) (71) (72), R. delemar ATCC34612 (73) (74) and R. javanicus (75) have identical amino acid sequences, and the lipases from R. oryzae ATCC 853 (76, 77) (78) and R. arrhizus L-03-R-1(79) differ by only several substitutions. The lipase from R. stolonifer (GenBank No. AAZ66864.1) and R. chinensis (GenBank No. ABN59381.2)(80) were of about 80% amino acid sequence identity to R. oryzae lipase (GenBank No. BAG16821.1) (Fig). Rhizopus lipases are synthesized as pre-pro-proteins composed of signal sequence, prosequence and mature lipase sequence (76) (80). The production of Rhizopus lipases has been performed in Escherichia coli [8], in Saccharomyces cerevisiae [9] and in Pichia pastoris [10,11]. Due to either different protein post-translational modifications affecting the glycosylation pattern of these lipases, or to proteolytic cleavage products arising from the mature, the pro- or the pre-pro-enzyme, the lipases derived from recombinant strains showed different molecular mass and different enzymatic properties compared with those from wild strains (75) (81). E. coli as host When E. coli was selected as a host, overexpression of R. oryzae prolipase (ProROL) and mature R. oryzae lipase (mROL) was achieved by using E. coli BL321, the heat-inducible vector pCYTEXP1 and the preOmpA sequence to achieve secretion into the periplasmic space (77) (76). Both fusion proteins induced by a temperature shift to 42 à °C were correctly processed and translocated to the periplasmic space, but both mROL and ProROL accumulated as insoluble aggregates. Furthermore, the enzyme activity of mROL damages cells even at low concentrations, whereas the expression of active ProROL has no toxic effects on E. coli and the amount of purified active ProROL (103 U/mL) is larger than that of mROL by a factor of more than 100(77). By in vitro refolding of the insoluble form of mROL, its prosequence was supposed to support the refolding of mROL in vitro (77). R. delemar lipase was also expressed as inactive and insoluble forms in the cytoplasm of E. coli BL21(DE3) using plasmid vector pE T11d (74). In order to achieve soluble production in E. coli, Di Lorenzo et al. (82) used a reductase-deficient host strain, E. coli Origami(DE3), which greatly enhance disulfide bond formation in the E. coli cytoplasm, and pET-11d as expression systems, yielded correctly folded and active mROL and ProROL only in the cytoplasm fraction. Although the specific activities of mROL and ProROL are comparable, the yield of ProROL (166U/mL) was higher than that of mROL (82). S. cerevisiae as host In contrast to E. coli expression system, eukaryotic expression system (eg. P. pastoris, S. cerevisiae) has the advantage of secretion into the cell culture supernatant, avoiding cell disruption, and post-translational modifications, including glycosylation and disulfide bond formation. Takahashi et al. (78) reported the production of the active R. oryzae lipase (ROL) by S. cerevisiae. When the ProROL gene fused with S. cerevisiae à ±-factor signal sequence was expressed in S. cerevisiae using UPR-ICL as a promoter, two forms of ROL, ProROL (46 kDa) and r28ROL (35 kDa) having 28 amino acids of the prosequence, were secreted into the culture medium, but the activity of mROL was not detected in both the medium and cells (78). The N-terminal amino acid sequence analysis revealed that the processed form r28ROL was cleaved by Kex2-like protease in S. cerevisiae at the recognition site KR in the prosequence (78). The independent production of two different molecular forms of ROL was succe ssfully obtained using Kex2-engineered strains of S. cerevisiae (83). The amounts of enzyme secreted were estimated as 78.8 mg/l broth for ProROL and 38.3 mg/l broth for r28ROL. These two forms of ROL exhibited distinct properties. ProROL were more thermostable than the processed lipase r28ROL (83), which was also observed in the case of R. niveus lipase expressed in S. cerevisiae (84). The expressed R. niveus lipase activity in the culture supernatant reached 1600 U/mL, a value equivalent to 0.2~0.3 g lipase protein per 1 liter of culture supernatant (72). The role of the prosequence of ROL was further analyzed in S. cerevisiae. When mROL was co-expressed in trans with the prosequence fused to the pre-alpha-factor leader sequence, the activity of mROL was recovered, suggested that the covalent linkage of the prosequence to the mROL was not necessary for the function (85) (86) . From the expression of the ROL mutants with deletions at the N-terminal end of the prosequence together w ith mROL in trans, the residues from 20 to 37 in the prosequence were essential for the secretion, and those from 38 to 57 were essential for the formation of the active ROL and might play a role as an intramolecular chaperone (86). Apart from extracellular expression, R. oryzae lipase was also successfully displayed on the cell surface of S. cerevisiae with a lipase activity of 350.6 U/L (87-89). P. pastoris as host On the contrary to S. cerevisiae expression system when the prolipase gene from R. arrhizus was expressed in P. pastoris, only the mature lipase attached with 28 amino acids of the carboxy-terminal part of the prosequence was secreted in the supernatant (Niu, Li et al. 2006). Prolipase with complete prosequence was nearly found in the supernatant which may be the result that the activity of Kex2-like protease was higher in P. pastoris than in S. cerevisiae (Niu, Li et al. 2006). Interestingly, expression of the prolipase gene from R. chinensis in P. pastors produced two forms of lipase, mature lipase attached with 27 amino acids of the prosequence (r27RCL) and mature lipase (mRCL) (Yu, Wang et al. 2009). At the early stage of fermentation, the recombinant P. pastors produced only r27RCL, which was gradually degraded into mRCL along with the fermentation, probably processed by serine proteases presented in the culture medium (Yu, Wang et al. 2009). For R. oryzae lipase, r28ROL was als o observed to convert to mature lipase gradually incubated at 0-6 à °C for a few days (Sayari, Frikha et al. 2005, Hama, Tamalampudi et al. 2006). It has been reported that the prosequence from R. chinensis lipases was more efficient than that from ROL in the role of facilitating the folding and secretion of an active lipase (Yu, Sha et al. 2013). The activity of the chimeric lipase from R. oryzae by replacing the prosequence with that from R. chinensis reached 4050 U/mL, which was 11 fold higher than that of the parent expressed in P. pastoris (Yu, Sha et al. 2013). mROL activity expressed in S. cerevisiae was not detected (Ueda, Takahashi et al. 2002), whereas mROL was functionally expressed and secreted in P. pastoris (Beer, McCarthy et al. 1998) (Minning, Schmidt-Dannert et al. 1998). The expression of mROL was compared under different regulated promoters (Serrano 2002) (Cos, Resina et al. 2005) (Resina, Serrano et al. 2004), i.e. alcohol oxidase 1 promoter (PAOX), glyceraldehyde-3-phosphate dehydrogenase promoter (PGAP) and the formaldehyde dehydrogenase 1 promoter (PFLD1). Expression of the mature form of ROL under the constitutive PGAP promoter resulted in extremely low extracellular lipase levels (Serrano 2002). PAOX is highly induced during growth on methanol, but tightly repressed during growth of the yeast on most common carbon sources such as glucose, glycerol or ethanol, while PFLD1 allows the design of methanol-free culture strategies, being methylamine a less volatile and flammable inducer. Valero and co-authors (Resina, Cos et al. 2005) (Cos, Resina et al. 2005) successfully expressed mROL in P. pastoris under the PFLD1 promoter using methylamine as nitrogen and sorbitol as carbon source. The productivity under PFLD1 promoter are comparable to the classic PAOX system (Resina, Cos et al. 2005) (Cos, Resina et al. 2005). However, limitationsincurrent knowledgein the regulation of methylamine metabolism in P. pastoris limit thedesignof efficientfermentationstrategies using PFLD1 promoter. The presence of multiple integrated copies of a desired expression cassette has been reported to be an important factor in increasing foreign protein production in P. pastoris (Cos, Serrano et al. 2005). The high-level expression of R. chinensis lipase was achieved by optimization of the lipase gene copy number in the host strain P. pastoris (Sha, Yu et al. 2013). Among 1, 3, 5 and 6-copy strains, the maximum lipase activity reached 12,500 U/mL in 5-cope strain, which was 6.2-fold higher than that in 1-copy strain (Sha, Yu et al. 2013). Maximizing gene copy number sometimes resulted in a decreased final productivity yield (Sha, Yu et al. 2013) or a negative effect on cell growth (Cos, Serrano et al. 2005), which indicated stress effects of Rhizopus lipases overexpression upon P. pastoris cells. Recent transcriptomic-based studies (Sha, Yu et al. 2013) (Resina, Bollok et al. 2007) strongly suggest that heterologous overexpression of Rhizopus lipases in P. pastoris indeed triggers the unfolded protein response (UPR). However, co-expression of certain chaperons could relief the cell stress caused by foreign protein overexpression. The productivity of R. chinensis lipase in P. pastoris was improved by co-expression with ERO1p and PDI (Kumar, Jahan et al. 2013) (Sha, Yu et al. 2013). These two chaperons are involved in the protein disulfide bond formation pathway in the endoplasmic reticulum, thus chaperon co-expression contribute to the relief of the protein overexpression stress in recombinant P. pastoris (Kumar, Jahan et al. 2013) (Sha, Yu et al. 2013). Co-expression of unfolded protein response transcriptional factor (Hac1) resulted in about a 3-fold increase in the overall specific productivity of mROL in P. pastoris while the deletion of GAS1, required for the cell wall assembly, achieved 4-fold increase. And the double mutant HAC1/Ãâgas1 strain yielded about a 7-fold increase (Resina, Maurer et al. 2009). Novel genetic factors enhancing heterologous protei n secretion in P. pastoris have been identified on the basis of transcriptomic analyses (Gasser, Sauer et al. 2007), which give a new insight into engineering P. pastoris for heterologous expression of foreign proteins. Another factor that should be considered for expression optimization is the Mut phenotype. When single copy mROL was expressed in P. pastoris under control of PAOX, the Maximal lipase activity (205U/mL), the specific production rate (qp, 63 U/gbiomass/h ) and the yield of lipase activity per biomass unit (YP/X, 5775U/gbiomass) by Muts strain were 1.37-, 1.29- and 2.34-fold higher than those by Mut+ strain, while the productivity (2246 U/L/h) by Muts strain was 1.34-fold lower than that by Mut+ strain (Cos, Serrano et al. 2005). For R. chinensis prolipase expressed in P. pastoris, Muts strain exibited 1.4-fold higher activity than that of Mut+ phenotype (Yu, Wang et al. 2009). Muts is not as sensitive as Mut+ to high transient methanol concentrations which make the bioprocess easier to control and enables scale up. However, Muts phenotype fermentation results in long induction times with low growth rates (Arnau, Casas et al. 2011). Different strategies have been implemented in the production of R. oryzae lipase under the PAOX promoter in P. pastoris Mut+ phenotype, eg. dissolved oxygen control (DO-stat), methanol limited fed-batch (MLFB, control of the substrate concentration close to zero), methanol non-limited fed-batch (MNLFB, maintenance of the substrate concentration at a constant value), as well as temperature limited fed-batch (TLFB). The MNLFB strategy for ROL expression led to 20ââ¬â30 h reduction in the production time, a 11-fold higher final lipolytic activity, a 13.6-fold higher productivity and a 10.3-fold higher specific productivity compared to the DO-stat strategy (Minning, Serrano et al. 2001). After optimization of methanol concentration, the activity of Rhizopus chinensis lipase reached 2130 U/mL by maintaining methanol concentration at 1 g/L controlled by an on-line methanol analyzer (Wu, Yu et al. 2011). One of the main drawbacks of P. pastoris Mut+ phenotype is the high oxygen demand i n high cell density cultures using MNLFB strategy (Cos, Serrano et al. 2005). A TLFB strategy was thereafter applied to solve oxygen transfer limitations (Surribas, Stahn et al. 2007). Barrigà ³n et al. (Manuel Barrigon, Luis Montesinos et al. 2013) compared MLFB and MNLFB strategies for the production of mROL expressed in P. pastoris. Yields, productivities and specific production rate in all MLFB conditions were very low. Best results were obtained by MNLFB strategy at methanol set-point of 3 g/L, under which condition maximum lipase activity, productivity and specific productivity reached 280 U/mL, 5406 U/L/h, 102 U/g/h, respectively (Manuel Barrigon, Luis Montesinos et al. 2013) . Due to low specific growth rate of Muts phenotype, strategies to use mixed carbon sources in the induction phase are applied to improve the expression levels of mROL and to increase the productivity of the bioprocess. Glycerol and sorbitol are both frequently used as co-substrates. When glycerol was used as co-substrate, one of the key advantages is its higher à ¼ (0.18 hâËâ1 versus 0.02 hâËâ1) compared with sorbitol. However, when the relation à ¼Gly per à ¼MeOH was larger than 4, a significant decrease of YP/X, volumetric and specific productivity was observed due to the repression of glycerol (Arnau, Casas et al. 2011). The sorbitol as an excellent non-repressive carbon source avoids the severe decrease of the specific production rate and it permits to achieve higher mROL production (Arnau, Ramon et al. 2010) (Ramon, Ferrer et al. 2007). During the induction stage, the ammonium ion released into the fermentation broth has a deep impact on cell growth and protein expression. In our previous study, the impact of NH4+ concentration on the expression of the R. oryzae chimeric lipase in P. pastoris co-expressed with ERO1p and PDI was investigated (Yu, Lu et al. 2013). Analysis of carbon metabolism and energy regeneration pattern revealed that under the optimum NH4+ concentration of 440 mmol/L more carbon source (methanol) was consumed with surged AOX activity and then the higher energy and amino acid precursors demand for recombinant protein synthesis is compensated for by the TCA cycle. Under the optimum NH4+ concentration the lipase activity reached 12,019 U/mL, which was 1.7-fold higher than that without supplement of NH4+ (Yu, Lu et al. 2013). It was also useful for other recombinant protein expression in P. pastoris by addition of inorganic nitrogen source (Kobayashi, Kuwae et al. 2000) (Zhang, Wang et al. 2008) (Yan g and Zhou 2004).
Wednesday, November 13, 2019
Dulce et Decorum est, by Wilfred Owen. Essay -- English Literature
Dulce et Decorum est, by Wilfred Owen. The First World War was an event that brought to many people, pain, sorrow and bitterness. Accounts of the war shows that no other war challenged existing conventions, morals and ideals in the same way as did World War. Many people touched by the terrror of the war have written pieces of literature about the massacre that was World War 1, wishing people to understand the horror and tragedy that befell those involved. "Dulce et Decorum est", by Wilfred Owen, is one such elegy that presents to the reader a vivid, horrifying description of World War 1, aiming to illustrate that war is not romantic and heroic, but a senseless and devastating event. In this poem, techniques such as imagery, alliteration, assonance, onomatopoeia and contrast are used to express Owen's angry and bitter view towards what happened in the war. "Dulce et Decorum Est" uses strong images to convey Owen's feelings about the war, and to force the reader to take his view. Ghastly pictures of the war occur throughout the poem, largely in the last stanza, working together to present a vivid picture of the war. These images, utilised by Owen, show the ultimate irony and the moral of the poem, that it is not in fact a sweet fate to die for one's country even though others may think it heroic. This irony is illustrated using juxtaposition at the end of the poem. The men who enlist are "innocent", they are "children" who have learned that war is full of "high zest" and this makes them "ardent for some desperate glory". These innocent boys are willing to believe the Lie but will think differently once they experience the war first hand. Descriptive language is used throughout the poem to evoke specif... ...rd "drowning" is repeated twice to imprint on the reader's mind the effect the gas had on the soldier. The language used also helps to give a stronger impact on the reader by involving the use of one of the reader's five senses. In "Dulce et decorum est", onomatopoeia is used to enhance the effect of the poem, by involving the reader's sense of hearing. Words such as "guttering", "gargling" and "choking" are used to emphasise the horrific sounds of a man dying from gas, as the sounds of the words can be likened to what they are describing. The reader's attention does not wander throughout the poem because of Owen's consistent imagery. By the end of the poem, the reader can fully appreciate the irony between the truth of what happens in the trenches and the Lie being told at home. It is this attention to form and imagery that makes the poem effective.
Monday, November 11, 2019
Digital Fortress Chapter 13
Tokugen Numataka stood in his plush, penthouse office and gazed out at the Tokyo skyline. His employees and competitors knew him a sakuta same-the deadly shark. For three decade she'd outguessed, outbid, and out advertised all the Japanese competition; now he was on the brink of becoming a giant in the world market as well. He was about to close the biggest deal of his life-a deal that would make his Numatech Corp. the Microsoft of the future. His blood was alive with the cool rush of adrenaline. Business was war-and war was exciting. Although Tokugen Numataka had been suspicious when the call had come three days ago, he now knew the truth. He was blessed with myouri-good fortune. The gods had chosen him. ââ¬Å"I have a copy of the Digital Fortress pass-key,â⬠the American accent had said. ââ¬Å"Would you like to buy it?â⬠Numataka had almost laughed aloud. He knew it was a ploy. Numatech Corp. had bid generously for Ensei Tankado's new algorithm, and now one of Numatech's competitors was playing games, trying to find out the amount of the bid. ââ¬Å"You have the pass-key?â⬠Numataka feigned interest. ââ¬Å"I do. My name is North Dakota.â⬠Numataka stifled a laugh. Everyone knew about North Dakota. Tankado had told the press about his secret partner. It had been a wise move on Tankado's part to have a partner; even in Japan, business practices had become dishonorable. Ensei Tankado was not safe. But one false move by an overeager firm, and the pass-key would be published; every software firm on the market would suffer. Numataka took a long pull on his Umami cigar and played along with the caller's pathetic charade. ââ¬Å"So you're selling your pass-key? Interesting. How does Ensei Tankado feel about this?â⬠ââ¬Å"I have no allegiance to Mr. Tankado. Mr. Tankado was foolish to trust me. The pass-key is worth hundreds of times what he is paying me to handle it for him.â⬠ââ¬Å"I'm sorry,â⬠Numataka said. ââ¬Å"Your pass-key alone is worth nothing to me. When Tankado finds out what you've done, he will simply publish his copy, and the market will be flooded.â⬠ââ¬Å"You will receive both pass-keys,â⬠the voice said. ââ¬Å"Mr. Tankado's and mine.â⬠Numataka covered the receiver and laughed aloud. He couldn't help asking. ââ¬Å"How much are you asking for both keys?â⬠ââ¬Å"Twenty million U.S. dollars.â⬠Twenty million was almost exactly what Numataka had bid. ââ¬Å"Twenty million?â⬠He gasped in mock horror. ââ¬Å"That's outrageous!â⬠ââ¬Å"I've seen the algorithm. I assure you it's well worth it.â⬠No shit, thought Numataka. It's worth ten times that. ââ¬Å"Unfortunately,â⬠he said, tiring of the game, ââ¬Å"we both know Mr. Tankado would never stand for this. Think of the legal repercussions.â⬠The caller paused ominously. ââ¬Å"What if Mr. Tankado were no longer a factor?â⬠Numataka wanted to laugh, but he noted an odd determination in the voice. ââ¬Å"If Tankado were no longer a factor?â⬠Numataka considered it. ââ¬Å"Then you and I would have a deal.â⬠ââ¬Å"I'll be in touch,â⬠the voice said. The line went dead.
Friday, November 8, 2019
The Value of Knowledge Essays - British Films, Cold War Films
The Value of Knowledge Essays - British Films, Cold War Films Manroop Bhogal ENG4U0-I Mr. Gellert March 4, 2016 The Value of Knowledge Knowledge is an important element in life that shapes the way a person sees the world. Although knowledge is not something that can be seen, it holds tremendous value to those who are capable of having it. In George Orwells Animal Farm, the downfall of the farm is caused by the unequal possession of knowledge amongst the animals. This possession of knowledge goes hand-in-hand with those who control leadership and power, life and death, and manipulation. The pigs achieve their superiority and power through their academic abilities. Due to the pigs already having more knowledge than the rest of the animals in the beginning of the novel, they automatically take their positions as the leaders of the Animal Farm, The pigs [do] not actually work, but [direct] and [supervise] the others. With their superior knowledge, it was natural that they should assume the leadership (Orwell 11). In turn, their positions as higher authorities allow them to gain access to Mr. Jones farmhouse, using his childrens old spelling book to teach themselves how to read and write. Having gained these skills, and examined the concepts of economics, Napoleon suggests that they engage in trade with the neighbouring farms in order to obtain certain materials which were urgently necessary, mainly rations. Napoleons knowledge of the trades gives him the ability to order Mr. Whymper to acquire rations for the animals and continue to report that there was no food sho rtage on the farm. Thus, with having no other contact with humans while allowing rations into the farm, as well as implying to the outside world that there is no food shortage, Napoleon has demonstrated to both the parties, that he is capable of running the animal farm without any humans, justifying his position as a powerful leader. This, in turn, begins the downfall of the Animal Farm. The other animals on the farm, however, due to their lack of intelligence, have only been led to their downfall. Many are unable to completely learn the alphabet while others do not feel the need to learn to read or write at all, Clover learnt the whole alphabet, but could not put words together. Boxer could not get beyond the letter DNone of the other animals on the farm could get further than the letter A (Orwell 13). The sheep, hens, and ducks, were unable to learn the Seven Commandments by heart. Their inability to effectively read or write stops them from averting Boxers murder, when they cannot read the sign on the van that takes him away (save Benjamin): Fools! Fools! shouted Benjamin, prancing round them and stamping the earth with his small hoofs. Fools! Do you not see what is written on the side of that van?Horse Slaughterer and Glue Boiler Do you not understand what that means? They are taking Boxer to the knackers (Orwell 47). A spark of realization has occurred, and the animals soon understand the importance of being able to read and write. As they watch their fellow comrade being driven towards his death, their guilt has consumed them, for it is their illiteracy which has caused the incident. Had the pigs taught the animals how read or write with ease, or had the animals taken the effort to learn to do so, Boxer would have been spared from this terrible incident. Through their extensive knowledge of reading and writing English, the pigs are able to easily manipulate the other animals minds through the changes made to the Seven Commandments. Squealer manipulates the minds of the animals by using a method called gas-lighting, a form of mental abuse in which information is twisted or spun with the intent of making victims doubt their own memory. When the changes made to the Seven Commandments are questioned, Squealer simply replies that there was no such thing written, questioning their memory, completely aware of their inability to read the Seven Commandments in the first place: Squealer [asks] them shrewdly, Are you certain that this is not something that you have dreamed, comrades? Have you any record of such a resolution? Is it written down anywhere? And since it was certainly true that nothing of the kind existed
Wednesday, November 6, 2019
Free Essays on My Papas Walts
The undeniable love for one's father cannot be overseen. The poem " My Papa's Waltz" by Theodore Roethke proves that the difference between pain and love is only but a small spark in the brain. A split second of choice is given to decide whether you love someone or hate them, that is the reason why may people fall in love with people that hurt them. In the case of this poem, Roethke does a fantastic job of disguising the horrific ideas of a father beating his son behind the pleasant image of dancing. While domestic violence is becoming as common as the tardy work of a college student, Roethke gives a little insite of impact on the whole family. A waltz is a dance performed by two persons in circular figures with a wirling motion(Websters). With this in mind the poem at hand gives a poor example of fine waltzing. In line 4 the author states that "such waltzing was not easy". At this point he gives the reader an insite to the begining of his sarcartic adventure. "We romped until the pans slid from the kitchen shelf"(lines 5 and 6). He wants you to think the "dancing" that they were doing was a little messy. whats realy happening is that a childs drunken over worked father has come home and is now abusively sending his son off to bed. As this is from the eyes of a small boy, he explains the actions of his father very easily like it is no big deal and this happens all the time. Roethke shows you the disapproval of the mother in this by her inability to stop this madness and her "frown". "You beat time on my head with a palm caked hard by dirt, Then waltzed me off to bed still clinging on to your shirt"(lines 13- 16). These lines show how the child in this peom has been beaten but still hangs on, still thinks it will stop at any moment. He hopes that his father will realize whatis going on. Saying that he is still clinging on allows you to believe in a bond. It makes you think that this child may never let go, that h... Free Essays on My Papa's Walts Free Essays on My Papa's Walts The undeniable love for one's father cannot be overseen. The poem " My Papa's Waltz" by Theodore Roethke proves that the difference between pain and love is only but a small spark in the brain. A split second of choice is given to decide whether you love someone or hate them, that is the reason why may people fall in love with people that hurt them. In the case of this poem, Roethke does a fantastic job of disguising the horrific ideas of a father beating his son behind the pleasant image of dancing. While domestic violence is becoming as common as the tardy work of a college student, Roethke gives a little insite of impact on the whole family. A waltz is a dance performed by two persons in circular figures with a wirling motion(Websters). With this in mind the poem at hand gives a poor example of fine waltzing. In line 4 the author states that "such waltzing was not easy". At this point he gives the reader an insite to the begining of his sarcartic adventure. "We romped until the pans slid from the kitchen shelf"(lines 5 and 6). He wants you to think the "dancing" that they were doing was a little messy. whats realy happening is that a childs drunken over worked father has come home and is now abusively sending his son off to bed. As this is from the eyes of a small boy, he explains the actions of his father very easily like it is no big deal and this happens all the time. Roethke shows you the disapproval of the mother in this by her inability to stop this madness and her "frown". "You beat time on my head with a palm caked hard by dirt, Then waltzed me off to bed still clinging on to your shirt"(lines 13- 16). These lines show how the child in this peom has been beaten but still hangs on, still thinks it will stop at any moment. He hopes that his father will realize whatis going on. Saying that he is still clinging on allows you to believe in a bond. It makes you think that this child may never let go, that h...
Monday, November 4, 2019
Research and Opinion Paper- On Organizational Culture Paper
And Opinion - On Organizational Culture - Research Paper Example The aim was to help learners have a better understanding of the diverse organizational traditions. A set of semi structured questions on matters related to organizational culture and its consequences on the society were presented to different employees in the selected industries. The deductions discussed in this survey paper were made. Introduction Culture is defined as a set of traditions or beliefs that dictate the way of life of a group of people. On the other hand, organizational culture is the set of values that define the collective behavioral orientations of humans in a given setup (Hofstede, 2012). These components of organizational culture range from the institutionsââ¬â¢ past to the contemporary issues. Most of the institutional traditions are based and established on common customs, attitudes and laws. It was, therefore, apt to conduct this cross-sectional research considering the said significance. Objectives of Organizational Culture Basically, organizational culture is normally established with the aim of improving the affairs of the company and defining its success. The institutional culture aims at maintaining and improving employee business conduct, as well as checking on better ways of employee treatment (Devis, 2007). The employee unit is a vital sector in each organization. The performance of the employees dictates the success of each company. A company that has an environmental culture which supports result oriented efforts is destined to thrive in its endeavors. It is, therefore, necessary to treat the employee cultural practices with a lot of care. Moreover, institutional customs also focus on defining proper channels through which authorities and information flow within the company. It also emphasizes on the importance of rewarding employees through promotions and salary increment based on their past performance records rather than social connections. Creating a culture that appreciates the employeesââ¬â¢ individual efforts to impr ove company issues builds strong relations between the employees and their employees (Evans, 2012). This contributes to the overall performance of the industry. Moreover, it is encouraged to let the entire fraternity of a given organization to understand channels of communication and responsibility. Impacts of Culture on Various Organizations Organizational culture is one the most talked about issues in the contemporary world. In every field, there is always a given set of beliefs and customs that members have to bend to in order to thrive. Different fields have various cultural practices associated with them. In the school setting, there are a number of traditional practices that influence the performance and success of such institutions. For instance, students are subjected to a set of norms that dictate how they carry out themselves within the institution. At the same time, teachers and tutors too have preset norms to guide them in creating better learning conditions to the stude nts. It is the various composites of the schoolsââ¬â¢ customary practices such as the missions, visions and ways of operations that determine the institutional performances (Evans, 2012). The business realm is no exception. It is, for instance, based on capital generation and profit making as the cultural basis. Those who venture into the business field, therefore, have to put up with the traditions. In addition, there are
Saturday, November 2, 2019
Importance of effective crosscultural communication in international Essay
Importance of effective crosscultural communication in international business - Essay Example We discuss the various issues relating to the diverse workforce and how these influence international business and its effectiveness. As it is observed that the communication barrier is the most influencing in the cross-cultural businesses, its importance and the possible ways to address this aspect to improve the effectiveness of international business is identified and discussed prominently. Finally, the results of the study are discussed and the discussion is concluded with recommendations. There is a growing trend among multi-national companies to employ diverse workforce, diverse not only in the functional and technological skills they possess, but also from various ethnic, cultural and demographic backgrounds. It is observed that "successful businesses are depending more on effective globalization, which in turn depend on the diversity in workforce" (Toomey, 1999: 4). This is due to the fact that they recognize that a cross-cultural team with its unique abilities can be an asset to the business and that it can contribute to the process of problem-solving owing to its diverse nature (Gupta, 2008 and Barrett, Davidson, 2006: 1). Gupta notes the comments of the SPHR, Delicia Del-gardo, "diversity can result in better business solutions" (2008). There is much evidence as to how these teams thrive on the diversity of skills, knowledge and culture to effectively approach problem-solving in various situations at work. As it enables them to leverage different approaches to solve a particular professional issue, there is a conscious effort by many teams to employ a diverse workforce. It can also be observed that this practice brings multi-dimensional advantages to the company. Along with the advantage of effective problem-solving, which is of importance in cross-cultural environments as they are prone to conflict, this practice of a employing a diverse workforce also brings an advantage to the business in terms of market share. With cross-cultural teams being employed, there is more exposure to the different cultures and also different markets, as with virtual teams, hence, these businesses can penetrate foreign markets with ease due to the inherent knowledge and skills available within (Guindi, Kamel, 2003). These teams are usually trained to communicate the importance of awareness that diversity exists and the need to identify and find ways to work towards a shared goal of the business, in spite of the differences. Hence, the responsibility lies on the management to train the workforce to be aware of the existence of differences and avoid any conflict rising due to these differences. The managements are responsible to communicate and ensure proper strategies to convey the shared goals and values that the employees need to inculcate to avoid any conflict and work on common grounds (Guindi, Kamel, 2003). However, there are still hoards of conflicts inherent in the cross-cultural businesses that they need to effectively address to ensure its smooth and
Thursday, October 31, 2019
To Kill a Mocking Bird Essay Example | Topics and Well Written Essays - 1000 words
To Kill a Mocking Bird - Essay Example Racism refers to the belief that there are differences in the ethnic groups on the basis of peopleââ¬â¢s characters, abilities and status. Racism, hence, classifies people in different groups and considers some races as superior to the others. The concept of racism is losing its colour. It is, however, not justifiable to believe that racism has been eliminated completely from the society. The literature is full of such works which identify the instances of racism in the society from the 20ââ¬â¢s till now. Throughout history there have been many forms of racism against different groups of people. One way we can really know is by the writers word in literature or school books. One way has been exposed is in "To Kill A Mockingbird by Harper Lee in which she depicts the racial problems of the Deep South in 1930 (Thernstrom 1997; Claudia 1994; Lee 1960). In To Kill A Mockingbird, Harper Lee uses many characters in the book, including Atticus, Jem, Scout and Tom to convey the major t hemes of the story regarding courage, racism and stereotyping to the reader. The story clearly describes the issue of racism as it was in the 1920s and 1930s in America. It is a story which revolves around a black named Tom Robinson who is accused of raping a girl which he has not even done. Racism can be seen in the very core of the theme of the story. The story shows that blacks have always been treated inferior to other races and because of their ethnicity and colour they have always been blamed for things that they have not even done (Lee 1960). The story shows how a town gets one sided when it comes to the issue of rape of a girl by a black. The black named Tom Robinson provides with enough evidence that he is not committed the crime but no one believes him because of his colour. The treatment of Tom Robinson in the story can clearly tell that the jury was being biased only because he was a black. Not only this but racism is also showed in the words of the characters in the sto ry. As at one instance Scout clearly states that ââ¬Å"Heââ¬â¢s just a niggerââ¬â¢ (Lee 1960). Racism as practiced in the society against blacks is seen in the courtroom as told by Lee. This can be clearly seen in the character of Mr Gilmer when he cross examines Tom Robinson. It is seen how Mr Gilmer makes a mockery out Tomââ¬â¢s story. It is seen that even the judge is not objecting to Tom Robinsonââ¬â¢s treatment by Mr Gilmer. These racist comments passed by the lawyer against Tom Robinson clearly depict the theme of racism as being practiced in the society against the blacks. Similarly Stereotyping also can be witnessed here as the judges in the courtroom were not paying any particular heed to Tom Robinsonââ¬â¢s plea as blacks automatically are considered to be criminals. Therefore it can be said that Chapter 19 is the amalgamation of all these themes together to give out a masterpiece which co-relates the judgment and the main theme of the whole story (Lee 1960; Thernstrom 1997). The story tells as to how stereotyping against the blacks or inferior class is being done in the society and how it is actually affecting the lives of many individuals living in this world. An example of stereotyping is the way people think about Dolphus Raymond without even knowing him. For example in chapter 20 Scout says ââ¬Å"somehow, I didnââ¬â¢t think Atticus would like it if we became friendly with Mr. Raymond, and I knew Aunt Alexandra wouldnââ¬â¢
Tuesday, October 29, 2019
Moral Values and Social Boundaries Essay Example for Free
Moral Values and Social Boundaries Essay Thesis statement: Certain limits should be applied to the constitutional right of ââ¬ËFreedom of speechââ¬â¢ as it encourages ethnic speech (ethnically and racially discriminating talk) A restriction on free speech is very essential on college campuses. Political correctness is found to be a mere attempt to be sure that everybody on campus feels welcome and is able to learn as per. Certain limits should be applied to the constitutional right of ââ¬ËFreedom of speechââ¬â¢ as it encourages ethnic speech (ethnically and racially discriminating talk) in educational institutions. Racially offensive speech in US institutions has led to several problems. Ethnic speech is widely evident in educational institutions. Racial jokes and ethnic speech are also prevalent in work places. Ethnic speech creates inferiority complex in lower classes. It is also against the policies of affirmative action (Arthur, 2004). The reason for the unacceptability of racially offensive talk is that the intentions behind them are always bad. They do exploit racial stereotypes and the talk often becomes offensive. Limits on freedom of speech are justified as there is a big relation between freedom of speech and racial speech. Look more:à ethnic group examples essay It is high time that we eliminate racially offensive talk from our society. For that the most important step is a restriction on the freedom of speech. The absence of limit on freedom of speech encourages racially offensive talk in college campuses in US (Arthur, 2004). Racially offensive humor is increasingly unacceptable and is based on the concept that certain ethnic groups are superior to others. Ethnically superior groups are of the belied that they do have very right to make fun at other inferior groups. The powerful faction has always assumed that they are superior to others in its race and culture. These ethnic groups will try to put down other inferior groups in order to strengthen their own group (Arthur, 2004). The superior group will thus feel no guilt in hurting the feelings of the inferior group. Ethnic and racial speech is generated out of this superior feeling and undermines the unity and cooperation prevailing in the society (Arthur, 2004). Had there been a limit on the freedom of speech, these kinds of racially offensive speech would have disappeared from the educational institutions in US. Even though freedom of speech is quite important as far as American society, a restriction on it is the real need of the hour. Uncontrolled speech may result in further segregation and racial classification. Offensive speech, of any form, should be discouraged so that it would not further create problems in the already segregated society. The panacea for all this is nothing but a limit on the freedom of speech (Arthur, 2004). Ethnic jokes are much prevalent in college campuses. Ethnic jokes exploit racial stereotypes. They are often racist and frequently offensive (Davies, 1982). Ethnic jokes are very popular and prevail in almost all societies. They do also play a great role in arising ethnic differences, exploitation and segregation. Ethnic jokes are targeted towards typical ethnic groups, possessing typical characteristics (Hughes, 1966). The usage of these kinds of jokes upgrades or degrades the value of a group in general and ignores the importance and uniqueness of the individual (Lorenz, 1963). Ethnic humor hurts the feelings of people as it leads to various segregations and discriminations (Davies, 1982). Racially offensive humor is increasingly unacceptable and is based on the concept that certain ethnic groups are superior to others. Ethnically superior groups are of the belied that they do have very right to make fun at other inferior groups (Dance, 1977). Ethnic humor is a powerful, destructive and senseless practice that is followed by one generation and transferred to the next generation. The powerful faction has always assumed that they are superior to others in its race and culture. These ethnic groups will try to put down other inferior groups in order to strengthen their own group (Davies, 1982). The superior group will thus feel no guilt in hurting the feelings of the inferior group. Ethnic humor is generated out of this superior feeling and undermines the unity and cooperation prevailing in the society. There are various biological and socio-cultural distinctions which people consider as a base to make ethnic jokes. They sometimes consider color of the skin (lightness or darkness) or other differentiating markers as base for making humor. They do consider various other ethnic differences and cultural variations (Hughes, 1966). No ethnic group has the right to make ethnic jokes against ant other ethnic group. Ethnic humor is always humiliating and insulting. It would only result in further segregation and racial classification. Ethnic groups, of any form, should be discouraged so that it would not further create problems in the already segregated society. Freedom of Speech is the boosting factor of ethnic speech in educational institutions. Institutional racism (systemic racism or structural racism) also prevail in our society. The white institutions are found to be reluctant to serve people of color (non-white minority). Institutions are historically set up to serve only white communities. These institutions function on the basis of race. They operate on the policy of segregation. Institutional racism is the concept that one race is superior to other. Organizations and institutions (both government and private) do racial discrimination, marginalizing the inferior faction. Even though the institutions exclusively for inferior race were technically illegal in America till 1863, our areas still have such institutions. These institutions offer their service only for superior faction and ill-treat students belonging to our community. Institutional racism is followed in all organizations, public bodies, educational institutions (universities) and corporations. Institutional racism influences almost all policies, processes and policies (in both governmental and public institutions). Institutions were historically set up to serve only white communities. These institutions function on the basis of race. They operate on the policy of segregation. Institutional racism is the concept that one race is superior to other. Organizations and institutions (both government and private) do racial discrimination, marginalizing the inferior faction. Institutions exclusively for inferior race were technically illegal in America till 1863. These institutions offer their service only for superior faction and ill-treat people of color. Legislations against racism have made institutional racism disappear to a good extent in United States. Ethnic speech in educational institutions is one of the worst sides of institutional racism. Freedom of speech is encouraging racial talk and ethnic humor. It is high time that we put a restriction on freedom of speech so that at least educational institutions are free from segregation. Colleges and universities have a moral obligation to ensure a peaceful, respectful learning environment for all students. It is therefore necessary to come down hard on speech code offenders. All employees and students should be able to enjoy and work in an educational environment free from discrimination and harassment. Harassment of any person or group of persons on the basis of race, color, nationality, origin, religion, sex, sexual orientation, age, disability, or veterans status is a form of discrimination that must be prohibited in all educational institutions. Employees, students, student organizations, or person privileged to work or study in the university community who violates this policy must be subject to disciplinary action. This will finally eliminate racial speech and discrimination from educational institutions. Harassment codes do not violate students First Amendment rights. A restriction on free speech is very essential on college campuses. Political correctness is found to be a mere attempt to be sure that everybody on campus feels welcome and is able to learn. References John Arthur, Morality and Moral Controversies: Readings in Moral, Social, and Political Philosophy, Prentice Hall, 2004. ââ¬Å"A Question of Fairnessâ⬠Ladies Home Jorunal, March 1996, p 17-20. Lubman, Sarah ââ¬Å"Campus Admissionsâ⬠Wall Street Journal, May 16, p81. Dance, Darryl. Wit and Humor in the Slave Narratives. Journal of Afro-American Issues. Spring, 1977: 125-134. Davies, C. ââ¬Å"Ethnic Jokes, Moral Values and Social Boundaries. â⬠British Journal of Sociology 33 (1982): 383-403. Hughes, Langston, ed. The Book of Negro Humor. New York: Dodd, Mead, 1966. Lincoln, Kenneth. Indin Humor. New York: Oxford, 1993. Lorenz, Konrad. On Aggression. Trans. Marjorie Kerr Willison. New York: Harcourt, 1963. Lowe, John. Theories of Ethnic Humor: How to Enter, Laughing. American Quarterly 38 (1986): 439-460. Rich, Frank. The New York Times 13 March 1994: IV, 17.
Saturday, October 26, 2019
Matrilineal social structure of spotted hyenas
Matrilineal social structure of spotted hyenas The spotted hyena, Crocuta crocutaà ¸ has evolved a matrilineal society in which the females are more dominant and aggressive than males within the clans. Female and male behaviors come together to form a complex societal structure that promotes variability and reproductive success. This species is an exceptional example of matrilineal hierarchy and social organization as opposed to the regular male-dominant societal structure present in the case of most mammals. Scientists continue to study the spotted hyena for its remarkably sophisticated social behavior, which may be comparable to that of some primates and possibly even human beings (Jenks et al., 1995; Drea et al., 2002; Engh et al., 2002; East et al., 2003). The spotted hyena, Crocuta crocuta, is a very intelligent animal that organizes itself into large clans of 50-80 members (Engh et al., 2002). While most mammals exhibit a male-dominant society where males fight for rank and the right to reproduce, the spotted hyena has developed a matrilineal society (Jenks et al., 1995). Females are more dominant and aggressive than males and pass on their rank to their offspring (Jenks et al., 1995; Engh et al., 2002). They are responsible for reproductive choice due to their dominant status (East et al., 2003). Males regularly travel to clans outside their natal society, despite the cost of access to food, for the chance of higher reproductive success (Engh et al., 2002). They also engage in specific favorable behaviors to entice females to choose to mate with them (East et al., 2003). All of these sophisticated behaviors have evolved to promote variability and overall success for the spotted hyena. Even more amazingly, the same social structure a nd behaviors of dominant-submissive interactions emerged within an isolated group of spotted hyenas raised in captivity (Jenks et al., 1995). The spotted hyena is definitely a very unique case of societal arrangement (Engh et al., 2002). With further study, the evolution of this remarkable case of sex-role reversal and complex hierarchy may soon be fully understood. It may provide further insight into similar social arrangements seen with other animals such as primates (Jenks et al., 1995). The study of spotted hyenas may even provide insight into more primitive stages of human societal structure, especially where there are matrilineal cultures. Females are without question the more dominant gender within spotted hyena clans and they exercise this dominance when it comes to reproduction (Engh et al., 2002; East et al., 2003). They are on average larger, more aggressive, and more violent than males within the clan (Engh et al., 2002). Their special anatomy an enlarged clitoris through which copulation occurs gives them full control over sexual activities and partners (East et al., 2003). There is no chance for forced copulation simply because the male hyena needs the females full cooperation for proper coitus to occur (East et al., 2003). Theories for the evolution of this physical characteristic include (a) counter-evolution in the presence of high rates of forced copulation and (b) selection for overall more dominant and aggressive individuals resulting in masculinization (Drea et al., 2002). Since more dominant and aggressive females also attain a higher rank within the clan, they tend to be more successful in raising a larger number of young. A higher rank correlates to greater access to food and thus higher chances of survival for both mother and offspring (Engh et al., 2002). Female spotted hyenas have multiple criteria for choosing mates. They prefer immigrant males to natal males, those born within the community a possible measure for prevention of inbreeding (Engh et al., 2002). Even more amazingly, females generally prefer males of similar age, preventing sexual interactions with fathers or sons (East et al., 20023). Females also show preference for more submissive, less aggressive males (East et al., 2003). This selection for less aggressive males further emphasizes the sexual dimorphism, both in behavior and physical characteristics, present in this species. Females copulate with several males when in heat, possibly to dissuade males from infanticide (East et al., 2003). This behavior further increases variability it is quite common to see single litters whose cubs can be traced to different fathers (Engh et al., 2002). It serves to confuse males and dissuade them from killing cubs that may or may not be their own a complex behavior that shows fo resight and intelligent thought (East et al., 2003). Female choice for less aggressive males and behavior to prevent infanticide may have evolved to counter the extremely high-risk pregnancies these animals go through due to their anatomy (Drea et al., 2002). In a study conducted by Engh and colleagues (2002), the reproductive skew among male hyenas was investigated. One of the major discoveries was that immigrant males had an immense advantage over natal males. Over the 10-year period that one clan of hyenas was observed, it was found that immigrant males sired 97% of the cubs, while natal males only sired 3% (Engh et al., 2002). This explains the males behavior of leaving natal clans and immigrating elsewhere: the cost of rank and access to food are highly outweighed by the reproductive benefits in a non-natal clan (Engh et al., 2002). Within the group of immigrant males, it was found that rank did not have a statistically significant effect on a males reproductive success. In fact, males a few ranks below the highest ranking immigrant had the most success in terms of cubs sired (Engh et al., 2002). In general, tenure the measure of how long an immigrant male had been in the clan was found to be a better indicator of reproductive succ ess. The immigrant males rates of producing cubs increased significantly the longer they remained in the clan, showing a strong correlation between tenure and reproductive success (Engh et al., 2002). Male spotted hyenas are also observed to exhibit behaviors to make themselves more attractive to females. As found in a recent study by East and colleagues (2003), there was no reproductive advantage to harassing, shadowing, or defending females from other competition. In fact, males exhibiting these behaviors were often attacked or chased away by females and other clan members. Instead, males found significantly more reproductive success by fostering relationships with females over longer periods of time a surprisingly complex behavior very close to that of humans (East et al., 2003). Having these friendly relationships also were seen to solidify the males places within the clan hierarchy once again, a very complex sociological behavior, especially when seen outside the order of primates (East et al., 2003). The sophisticated system of hierarchy was even recreated in captivity by a group of previously unranked hyenas collected at infancy (Jenks et al., 1995). Amazingly, these young hyenas grouped themselves in a matrilineal hierarchy, as observed over the course of two generations (Jenks et al., 1995). This structuring occurred despite the lack of maternal input for the first generation, showing that social organization is programmed into the spotted hyenas behavioral patterns (Jenks et al., 1995). While the first generation had little to no maternal interaction to help rank them within the clan, they went on to influence their own offsprings place in the clan hierarchy, just as observed in wild clans (Jenks et al., 1995). The only significant difference between the experimental clan and wild clans was the speed at which the cubs ranks stabilized within the community. Experimental group cubs solidified their place much faster than those in the wild, possibly due to smaller numbers and le ss movement within the clan (Jenks et al., 1995). The spotted hyena is a remarkable animal. It shows extremely complex behavior that leads to sophisticated social structure something that is rarely seen in mammals outside of primates (Jenks et al., 1995). In fact, the matrilineal group structure of hyena clans is very similar to that of Old World primates (Jenks et al., 1995). The sense of organization in this manner is so strong within the hyenas evolved behavioral patterns that matrilineal structure is even seen to spontaneously emerge in isolated hyenas raised in captivity (Jenks et al., 1995). Complex sexual behaviors, such as the females choice of partner based on immigrant status, tenure, and age, seem to promote the creation of this social structure (Engh et al., 2002; East et al., 2003). Carefully nurtured relationships between same- and opposite-sex individuals show the multifaceted interactions between clan members that also contribute to the development of matrilineal organization (East et al., 2003). Female dominance is even supported by biological mechanisms and the altered anatomy of this species (Drea et al., 2002). With further study, the circumstances that led to the evolution of this unique system may soon be uncovered. This will provide insight not only into the spotted hyenas sociological history, but also into that of Old World primates and possibly even that of human beings. It is an exciting prospect that will hopefully emerge within the years to come.
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