Biology Cell Parts Essay -- essays research papers

Nucleus- â€Å"the brain† or control center of the cell. The Nucleus, a membrane-bound structure of a cell, plays two crucial roles in controlling the cell. The nucleus carries the cell's genetic information that determines if the organism will develop, for instance, into a tree or a human; and it directs most cell activities including growth, metabolism, and reproduction by controlling protein synthesis. The presence of a nucleus distinguishes the more complex eukaryotic cells of plants and animals from the simpler prokaryotic cells of bacteria and cyanobacteria that lack a nucleus. The nucleus is the most predominate structure in the cell. It is typically round and occupies 10% of the cells total volume. The nucleus is wrapped in a double-layered membrane called the nuclear envelope. The space between the nuclear envelope layers is called perinuclear space. The nuclear envelope is attached to a network of membrane-enclosed tubules that extends throughout the cell called the endoplasmic reticulum. The nuclear envelope is perforated by many holes, called nuclear pores, that permit the movement of selected molecules between the nucleus and the rest of the cell, while blocking the passage of other molecules. The nucleus contains the nucleolus, which manufactures the organelle known as the ribosome, or the protein producing organism. Genetic information in the form of deoxyribonucleic acid(DNA) is stored in threadlike, tangled structures called chromatin within the nucleus. During the process of cell division known as mitosis, in which the nucleus divides, the chromatin condense into several distinct structures called chromosomes. Each time the cell divides, the heredity information carried in the chromosomes is passed to the two newly formed cells. The DNA in the nucleus also contains the instructions for regulating the amount and types of proteins made by the cell. These instructions are copied, or transcribed, into a type of ribonucleic acid(RNA) called messenger RNA (mRNA). The mRNA is transported from the nucleus to ribosomes, where proteins are assembled.   Ã‚  Ã‚  Ã‚  Ã‚   Nuclear Envelope- The nucleus is wrapped in a double-layered membrane called the nuclear envelope. The space between the nuclear envelope layers is called perinuclear space. The nuclear envelope is attached to a network of membrane-enclosed tubules called the endoplasmic ret... ...g the lungs, and does this by sweeping them into mucus where they are swallowed, as opposed to inhaled. Cell Wall- The most predominate feature that distinguishes plant cells from animal cells, is the cell wall. The Cell wall surrounds and protects the plasma membrane located within it, and helps it to maintain its shape. The pores in the cell wall allow objects to flow freely through the walls, into and out of the cell. The strength of the wall also allows for the central vacuole to be filled with water, or in a turgid state, without bursting. The strength of the cell walls is portrayed in the firmness of stems, leaves and flowers. It is also divided into a primary and a secondary cell wall. Extracellular matrix- Functions in support, adhesion and movement and development. In animal cells like cell walls of plants. It also functions in a cells dynamic behavior. It Helps to control the activity of the genes in the nucleus. Intercellular Junctions- integrate cells into higher levels of structure and function. The cell wall of plants are perforated by plasmodesmata which allow cytoplasm to pass through. This allows water and small solutes to pass freely from cell to cell.

Foreign Policy Toward Iraqi Refugees Essay

In 2003, the US war in Iraq finally toppled Saddam Hussein’s dictatorial regime and freed the Iraqi people from the bondage of tyranny. However, the re-establishment of democratic processes and the road to achieving peace have led to perdition, as Islamist fundamentalism prevailed during the cultural-religious bestowal even at the time prior to Saddam’s reign of power. The victory of democracy in the installation of a new Iraqi government instilled the shadow of political unrest and extreme economic recession, in which the fall of Baghdad may have been buried in a deep grave. At present, the violence in Iraq is showing no sign of slowing down and majority of the Iraqi people continue to suffer tremendously as documented on this account : the UN estimates that 2. 6 million Iraqis have fled since 2003 ranging from 40,000 to 50,000 Iraqis leaves their homes every month; two million flees to nearby countries and about 1. 8 million of the civilian populace seek refuge in safer areas within Iraq, in which Syria and Jordan are among the countries directly helping the refugees for the past three years, and some have fled to Egypt, Lebanon, Yemen, Iran and Turkey. Meanwhile, almost daily the media reports on the desolation of Iraqi. The Refugee International has accounted for series and continuing street crimes, the prevalence of business closures, human trafficking, and kidnap-for-ransom cases. In addition, the media said that the documentation of casualties and victims of similar crimes has to be reconciled with at large proportion due inability to locate substantial witnesses and the family of the victims. Goal Positioning The goal of this paper generally seeks to discuss and examine the continuing struggle for survival in Iraq. The product of examination shall be presented through a course of study pertaining to foreign policy toward Iraqi refugees. In particular, a holistic approach will be undertaken, to: (1) identify the extent and magnitude of mass evacuation of refugees, and (2) examine the availability of foreign policies that concern Iraqi refugees. In addition, the objective of the study is to address the long debatable issue on host country refugee adoption and to answer the question â€Å"why and how Iraqi refugees could be hosted by countries like the United States of America but neither by other European countries or in Asia? † This question plainly posits the feasible means of a foreign policy that could be adopted [if there once that exists,] in which this compendium could ventilate the avenues of legislation and to the meanest effort of influencing the public interest for policy initiatives. Background of Study The background of the study focuses on the sub-human conditions of the Iraqi people and their desire to flee from their homeland in exile as refugees. The background [based on the plight of the Iraqi refugees] will also discuss derivatives of study on foreign policies that evolve the goals of this paper. The additional consideration on the need for enabling a foreign policy for Iraqi refugees could indicate and can be comparatively analyzed with the proportion of violence that links the overall unaccounted number of Iraqi casualties. Thus, the initial indicator is based on the documented report that follows: (1) US military killed in Iraq is estimated at 3,973; (2) number of US troops wounded in combat since the war began is 29,203; (3) Iraqi Security Force deaths is 7,924; (4) Iraqi civilians killed is estimated at a range from 81,632 to 1,120,000; (5) internally displaced refugees in Iraq is estimated at 3. 4 million. On the other hand, as part of the documented report , the cost of war has accounted to; $526 billion to date, with a cost per day of $275 million and being estimated at a long- term bill of $3 trillion. In addition, Iraqi unemployment has grown from 25 to 40 percent. Literature Review A brief review of similar literatures will be discussed in this section in order to: (1) present the collection of initiatives and collaboration of international entities and governments for refugees, and (2) link the relevance to the process of this paper. Canada was tasked to assume the role of â€Å"gavel-holder† of the newly established Refugee Working Group (RWG) in January of 1992 as part of the design of the general Middle East peace process (MEPP) that created the Expert and Advisory Services Fund (EASF) as a Canadian involvement to the Middle East Multilateral Peace Process . The EASF is administered by Canadian International Development Research Centre (IDRC) with funding from the Canadian International Development Agency (CIDA) in partnership with the Department of Foreign Affairs and International Trade (DFAIT). The implementation of EASF for the period of March 2002-2008 works within key policy issues on refugees, in which EASF (Phase 3 IDRC) programs embark on the â€Å"compensation to Palestinian refugees as part of a comprehensive solution, challenges of repatriation and absorption, and gauging and engaging public opinion† . In a related finding, the Georgetown University’s School of Foreign Service through its Center for International and Regional Studies (CIRS) located in Qatar and the Institute for the Study of International Migration (ISIM) in Washington jointly conducted a study in 2007 regarding this for . The study showed that Iraqis in Jordan and Syria are beneficiaries of two opposing foreign policies, one is the tradition of Arab brotherhood which comprises a political and moral responsibility in providing refuge while the other is an option of Jordan and Syria not to integrate the Iraqis’ permanency . However, the United Nations’ High Commissioner for Refugees (UNHCR) considers the Iraqis as â€Å"prima facie refugees† (being registered refugees) who were issued with â€Å"asylum seeker cards† in Jordan and refugee cards in Syria. The UN agencies and NGOs have provided immediate support to lessen the misery. Furthermore, the study team stated that â€Å"the war in Iraq is not limited to Iraq since it has intensely affected the Middle East region . However, according to a statement of a UK-based NGO, many refugees are denied asylum status, being degraded and are even called as â€Å"welfare scroungers† or â€Å"fake refugees† when they come to the UK . It is obvious that the US and UK’s â€Å"War on Terror† is marginalizing refugees still further as numerous legitimate political movements are labeled â€Å"terrorist† . In addition, based on the statement, the UK has curved entire migrant communities as terrorist suspects [in which the anti-terrorism laws have widened the classification of terrorism] encompassed with political activities even on those who are against oppressive regimes overseas . Moreover, the US government has recently released a press statement disclosing that about 12,000 Iraqi refugees will be admitted to US before the end of 2008. According to State Department’s Senior Adviser James Foley, the Deputy Assistant Secretary of State for Consular Affairs’ Tony Edison and the Department of Homeland Security (DHS) Senior Adviser on Iraqi Refugee Issues’ Lori Scialabba, Iraqis were identified as potential candidates for emigration to the United States. After a year of redoubled efforts, all of the organizations involved in the process are working together to build a more effective refugee screening program . The three US officials further stated that the US has poured in $171 million in humanitarian assistance to displaced Iraqis both in and outside the country in 2007. However, the UN has appealed for $123 million in 2007 to $261 million for 2008 . Scope and Limitation The scope of work will be composed of a 2-prong method which are: (1) on-field and out- field research; within the scope of finding available and adequate materials as derivatives in the conduct of evaluation and the actual field validation of data and (2) study review in areas of fitting in the study parameters in view of legislative policy agenda for refugees in order to re-examine the gaps and further conduct of study. Considerably, the aspect of out-filed research may be limited only to accessing the available data sources, such as on-site interviews to various individuals or personalities and gathering of other data materials that are readily available. Perspectives It has been a glaring and presently debatable issue that Iraqi refugees pose a challenge to global governments and communities of progressive people. The parameters of the study believe that Iraq has not yet overcome the war. While it is true that Iraq was once a captive of political and religious dogmas, the country must still be retained to its sovereign people. The Iraqi refugees is a shame to the least part of developed and even underdeveloped world from Africa to Asian continents because in that part of Middle East lies a bleeding country characterized by the plagues of war. It is in this regard, the study envisions a perspective that would create and supplant the bondage and stigma of war from the life of the Iraqi people. The study also aims to map out the road to recovery, and through that, a foreign policy for Iraqi refugees may guide the ascendancy of moral values and responsibility in order to achieve peace in Middle East and the rest of the world. Conclusion It is clear the Iraqi people continue to walk on the road to perdition due to their long struggle of tyranny. It could be described that the misery after the fall of Baghdad has a continuum in despicable plight. The global partnership in restoring and retaining the democratic processes in Iraq may be a long process and difficult due to the intensely adverse cultural-religious entanglement. Nevertheless, it is necessary to first restore the people’s lives, specifically women, and children. Once this is achieved, it will be no longer hard to once again see the flourishing city of Baghdad where people co-exist in abundant life amidst the barren lands. Bibliography America. Gov, â€Å"United States to Welcome 12,000 More Iraqi Refugees in 2008† (February 06, 2008) [http://www. america. gov/st/peacesec- english/2008/February/20080206160027idybeekcm0. 824032. html] Erik Leaver and Jenny Shin, â€Å"The Iraq Quagmire†, Foreign Policy in Focus, Institute of Foreign Policy, Washington DC 20036. (March 4, 2008). [http://www. fpif. org/fpiftxt/5036] International Development Research Centre (IDRC), â€Å"Middle East Expert and Advisory Services Fund†, Department of Foreign Affairs and International Trade Canada (2008). [ http://www. idrc. ca/uploads/user-S/12060300201Microsoft_Word_- _EASF_Program_Profile__3__final. pdf] Kristele Younes, â€Å"The Iraqi Refugee Crisis†, Foreign Policy in Focus, Institute of Foreign Policy, Washington DC 20036 (March 14, 07). [http://www. fpif. org/fpiftxt/4059] Patricia Weiss Fagen, Iraqi Refugees: â€Å"Seeking Stability in Syria and Jordan†, Georgetown University Institute for the Study of International Migration (2007). [http://www12. georgetown. edu/sfs/isim/Publications/PatPubs/Iraqi%20Refugees. pdf] The Refugee Project, 44 Ainger Road, London, NW3 3AT (2008). [http://www. therefugeeproject. org/]

The Legacy and Works of Lu Xun

Lu Xun (é ² Ã¨ ¿â€¦) was the pen name of Zhou Shuren (å‘ ¨Ã¦  â€˜Ã¤ º º), one of China’s most famous fiction authors, poets, and essayists. He is considered by many to be the father of modern Chinese literature because he was the first serious author to write using modern colloquial language. Lu Xun  died on October 19, 1936, but his works have remained prominent over the years in Chinese culture. Early Life Born on September 25,  1881, in Shaoxing, Zhejiang, Lu Xun was born into a wealthy and well-educated family. However, his grandfather was caught and nearly executed for bribery when Lu Xun was still a child, which sent his family tumbling down the social ladder. This fall from grace and the way once-friendly neighbors treated his family after they had lost their status had a profound effect on the young Lu Xun. When traditional Chinese remedies failed to save his fathers life from an illness, most likely tuberculosis, Lu Xun vowed to study Western medicine and become a doctor. His studies took him to Japan, where one day after class he saw a slide of a Chinese prisoner being executed by Japanese soldiers while other Chinese people were gathered around happily taking in the spectacle. Appalled at his countrymen’s apparent callousness, Lu Xun abandoned his study of medicine and vowed to take up writing with the idea that was no point in curing diseases in Chinese people’s bodies if there was a more fundamental problem in their minds that needed curing. Socio-Political Beliefs The beginning of Lu Xun’s writing career coincided with the beginning of the May 4th Movement, a social and political movement of mostly young intellectuals who were determined to modernize China by importing and adapting Western ideas, literary theories, and medical practices. Through his writing, which was extremely critical of Chinese tradition and strongly advocated modernization, Lu Xun became one of the leaders of this movement. Impact on the Communist Party Lu Xun’s work has been embraced and to a certain extent co-opted by  China’s Communist Party. Mao Zedong held him in very high esteem, although Mao also worked hard to prevent people from taking Lu Xun’s sharp-tongued critical approach when it came to writing about the Party. Lu Xun himself died well before the communist revolution and it’s difficult to say what he would have thought of it. National and International Influence Widely recognized as one of China’s best and most influential authors, Lu Xun remains strikingly relevant to modern China. His socially-critical work is still widely read and discussed in China and references to his stories, characters, and essays abound in everyday speech as well as academia. Many Chinese people can quote from several of his stories verbatim, as they are still taught as part of China’s national curriculum. His work also continues to influence modern Chinese authors  and writers around the world.  Nobel-prize-winning author KenzaburÃ…  Ã…Å'e  reportedly called him the greatest writer Asia produced in the twentieth century. Noted Works His first short story, â€Å"A Madman’s Diary†, made a huge splash in China’s literary world when it was published in 1918 for its clever use of colloquial language juxtaposed with the stilted, hard-to-read classical language that â€Å"serious† authors were meant to write in at the time. The story also turned heads for its extremely critical take on Chinas dependence on tradition, which Lu Xun uses metaphors to compare to cannibalism. A short, satirical novella called â€Å"The True Story of Ah-Q† was published a few years later. In this work, Lu Xun condemns the Chinese psyche through the titular character Ah-Q, a bumbling peasant who constantly considers himself superior to others even as he is relentlessly humiliated and ultimately executed by them. This characterization was on-the-nose enough that the phrase â€Å"the Ah-Q spirit† remains widely used even today, nearly 100 years after the story was first published. Although his early short fiction is among his most memorable work, Lu Xun was a prolific writer and he produced a wide variety of pieces including a large number of translations of Western works, many significant critical essays, and even a number of poems. Though he only lived to be 55, his complete collected works  fill 20 volumes and weigh over 60 pounds. Selected Translated Works The two works mentioned above,  A Madman’s Diary† (ç‹‚ä º ºÃ¦â€" ¥Ã¨ ® °)  and â€Å"The True Story of Ah-Q† (é˜ ¿Qæ ­ £Ã¤ ¼  )  are available to read as translated works.   Other translated works include  The New Year’s Sacrifice,  a powerful short story about women’s rights and, more broadly, the dangers of complacency. Also available is  My Old Home,  a more reflective tale about memory and the ways in which we relate to the past.