Tromaville Coalition Essays - Membrane Biology, Cell Biology

Tromaville Coalition Essays - Membrane Biology, Cell Biology Tromaville Coalition Member of the Tromaville Coalition Chemistry 1. a) Bulk movement is the overall movement of a fluid. The molecules all move in the same direction. Diffusion however is the random movement of molecules which usually results in a fairly even distribution. In other words the movement is not guaranteed to move in one direction but the probability that it will move in the lower gradient is greater. Osmosis is similar to diffusion but is differentiated by the membrane's behavior. The cell membrane does allow water to move from higher to lower concentrations but does not allow solutes do that. b) Water potential is the capacity of water to move to a from a region where there is high water potential to low water potential. This action happens without the affect of outside forces. When outside actions due occur and they give water a high potential energy than the water will move to the region where less potential energy is. Hydrostatic pressure is the pressure required to stop water the movement of water. This is a method of measurement. The osmotic potential is the measure of tendency of water to move through a membrane which contains a solution. This occurs when a cell does not allow a hypertonic solution to leave the cell membrane. The cell begins to increase with water but the cell membrane can not release the solution and thus the water potential within the cell increases. This causes the water to no longer enter the cell. c) Hypotonic is less solute to a certain amount of water. Hypertonic is more solute to a certain amount of water. Isotonic is the equal amount of solutes in two different solutions. d) Endocytosis is the inward bulge causes by incoming molecules. Exocytosis is the expelling of a material outside a cell. e) Phagocytosis is the process where the cell obtains solid matter. This is different from the pinocytosis where the cell obtains liquid matter. These both are endocytic processes. Receptor-mediated endocytosis is the process where there are interactions between a material and receptor sites on the cell. In this process the cell accepts the material if it matches with the receptor sites. f) Coated pits are areas which peripheral proteins indent the membrane. This is where the vesicles for certain materials are formed. The vesicle which is formed is called the coated vesicle. g) Plasmodesmata are the links which hold two adjacent cells together. Gap junctions are the channels which allow materials to flow between cells. 2. The concentration gradient is the difference in the density of a material from one region to another region. The concentration gradient affects diffusion by allowing the substance to flow from high concentration to low concentration. The concentration gradient affects osmosis by the same manner it does in diffusion. The cell does not allow the solution to exit the cell when water is entering. This keeps the solution in the cell making the concentration high and thus no further penetration of water. 4. Diffusion is more rapid in gases because they are less dense than liquids. They repel each other more resulting in faster diffusion. Diffusion is greater at higher temperatures because of the greater kinetic energy among the molecules. They push each other more making them less dense. 5. The concentration of the solute is 1%. This happens because a 1% sugar solution is isotonic with that of the 1% sugar solution in the tubes. The 2% sugar solution was increased because the substance was hypertonic. The membrane did not allow the hypertonic solution to exit because the pressure from the hypotonic solution was forcing water in. This later reached an equilibrium when the hypertonic solution was gaining water potential and the water stopped rising. The vice versa happened in the distilled water solution.

The Top Jobs in the U.S. Mountain Plains Region

The Top Jobs in the U.S. Mountain Plains Region if you’re looking for a career change (or a change of scenery!), here are some of the fastest-growing jobs for 2016 in the mountain-plains part of the unites states. per the u.s. bureau of labor statistics, this region includes colorado, kansas, missouri, montana, utah, and wyoming. when you hear the lines, â€Å"o beautiful for spacious skies,/for amber waves of grain,/for purple mountain majesties/above the fruited plain!† in â€Å"america the beautiful,† chance are you’re thinking of u.s. heartland states like the mountain-plains region. once known for its prairie spirit, the region’s population is growing as the former frontier cities turn into (or grow their existing status as) major hubs.tech job outlook: technical support specialistsutah and colorado might be better known for mountain vistas and film festivals, but cities like provo and fort collins are fast becoming booming tech communities, with companies like hewlett packard, intel, and nu merous startups staking a claim. as technology companies expand operations in the region, tech support specialists are in high demand. these specialists help customers and companies troubleshoot computer software and equipment, and are often the front lines of defense when tech goes wrong.a bachelor’s degree is frequently required, but some openings require an associate’s degree or specialized classes. the median salary for these support specialists is $50,380 a year, with a faster-than-average 12% growth expected.administrative job outlook: actuaryactuaries are an essential part of many industries, but especially the insurance field. they use statistics, math, and financial theory to forecast financial risk, make predictions for their company, and then plan how to minimize that risk.the actuarial field usually requires a bachelor’s degree and offers on-the-job training for new hires. the median salary is $96,700 per year, with robust expected growth of 18%.othe r jobs like data entry specialist are easy to find, but not as much potential in term of promotion and learning.logistics job outlook: truck driverper an npr poll in 2014, the most common jobs in missouri in 1978, 1996, and 2014 were truck, delivery, and tractor drivers. that consistency doesn’t seem likely to shift soon- this region is a hotbed of distribution activity, and this trend will keep on truckin’ in 2016 and beyond.the median salary for truck drivers is $38,200, and the field is expected to grow by at least 11% by 2022.healthcare job outlook: emts and paramedicsthere are often shortages of qualified medical personnel, and no career path sees that as much as front-line emergency medical technicians (emts) and paramedics. these vital professionals offer emergency care for illness and injury, and are often the first responders in a variety of emergency situations.demand for these emergency workers is expected to increase by at least 24% in the coming years, and the median salary is $31,700. if you thrive on high-pressure situations and aren’t squeamish at the sight of blood, this can be a very strong career choice.service job outlook: nanny/childcare workeras the number of households with both parents working continues to increase, so do the needs for quality childcare. this field is especially trending in urban areas, as families look for alternatives to traditional daycare options. nannies and childcare workers are responsible for the daily care of children, and in cases of individual family employment, may also help run the household on a daily basis. the median salary is $28,000, with 5-10% growth anticipated in the coming years.so remember: while you’re seeking out those fruited plains and purple mountain majesties, there are many promising career options available to you.

To What extent was the Cold War global Essay Example | Topics and Well Written Essays - 2500 words

To What extent was the Cold War global - Essay Example Proxy wars, economic confrontation, spy networks, alliance formation, arms race and technological competition were at their peak during this time. Russia found itself isolated in the world after the revolution of 1917 as most other nations did not concur with the ideological change that had occurred there. The revolutionary leader Vladimir Lenin asserted that Russia was encompassed by a ‘hostile capitalist encirclement’ (Gaddis, 1997). This laid the groundwork for what was to follow, i.e. years of hostility and isolation between differing ideological camps. The arms race that supplemented the cold war resulted in dire consequences for several nations after the dissemination of the USSR. The weapons are still used by terrorist and rebel movements all across the world as both the USA and USSR aim to liquidate their excess artillery in the search of economic returns. Globalization of the War:- The arms race between the Soviet Union and the United States resulted in a stockp ile of nuclear and non nuclear weapons at both ends which cost both parties significant portion of their economy (McNeill and Unger, 2010). Throughout the years of the cold war, both camps continued to pursue alliances with states all across the world. ... Americans and Soviets funded, trained, armed and fought alongside local militaries and forces against others in regional and civil wars that spread across several states including Korea, Vietnam, Afghanistan, Guatemala and Angola. What led to Cold War’s Globalization:- Both camps saw themselves as the embodiments of progress and modernity. The United States had a history of intervention into the affairs of non white people (Westad, 2005). By the eve of World War I, the United States had become a protector and balancer of a capitalist world system, by virtue of its economic might. This meant that it considered intervention its responsibility when it saw the laws of capitalism being ‘violated’. Similarly, the Soviet Union continued to pursue its ideology of expansion of the Russian empire and the modernizing and universalistic claims of Marxism. Soviet leaders sought to spread communism into the third world as a means to successfully confront the United States. (Gud erzo and Bagnato, 2010). Both sides saw themselves as the torchbearers of a global progression and ideological revolution. This is one of the reasons why the intensity of conflict between the two countries was so high (Westad, 2005). Decolonization of the world also provided both sides room for manipulation with newly independent states. These new states saw the cold war as an opportunity to gauge money for their own country to pursue development plans. They also saw economic and ideological models which they could follow (Guderzo and Bagnato, 2010). Both countries tried extensively to align countries towards their respective ideologies however, by remaining non aligned

Please describe the information to make a note for the work Speech or Presentation

Please describe the information to make a note for the work - Speech or Presentation Example The red cells are well known for transporting oxygen to other parts of the human body. As the curved piece blocks the moving red pieces it represents the red blood cells being affected by the sickle as they move and changes their shape to oval. What happens is that the sickle celled cells get stuck on the way just like the stopped red piece when they are moving in the blood vessels. As a result oxygen is stopped from being distributed into the body causing pain in the sick body. This effect can affect other body parts like the body organs, the bones and the muscles. This model art represents the affected cells and their movement. The two pendulums represent the pumping of blood in the human body. As the pendulum swings, it introduces a new force and makes the pieces to move. As one square piece moves, it exerts force to the other piece making them to move slightly. The small square pieces represent the affected cells which do not move to circulate oxygen to the entire body of a human person. This creates redundancy in the blood cells movement hence oxygen is not circulated fully. People with sickle cell disease face a lot of pain and problems and hence their life span is reduced. This is one of the best visual arts represented which clearly shows how the affected red cells find it difficult to move in the blood vessels. The tray in which the square pieces move represents the blood vessel. Ever taught the cause of Sickle Cell? Well, it is a disease that is normally inherited mostly from a parent to a child. The child is so unlucky that he or she gets a gene from each of the parents (Father and Mother). When a child carries only one gene of the Sickle cell, he or she becomes a carrier. From this simple explanation, you now know how sickle cell

Discuss in Detail Ways in Which Variations in the English Language Reflect the Society They Are Situated in Essay Example for Free

Discuss in Detail Ways in Which Variations in the English Language Reflect the Society They Are Situated in Essay Discuss in detail ways in which variations in the English language reflect the society they are situated in. According to Walt Wolfram, â€Å"Language sows its own seeds of change. Social context gives it the fertile ground to grow and spread.† The global spread of English has inevitably led to the formation of new varieties such as Singlish and Hinglish, which are different in their own ways. The differences among these variations, in terms of lexical choice, structure and even pronunciation, are due to the different context and needs of the societies. These include the economical incentive of English in the society, social groups and their cultural make up. The economic incentive of learning English in the society plays a big role in the type of variation that distinguishes the new Englishes from other varieties. With the affluent and powerful recognizing the importance of English to connect, be a part of the global platform and even acquire well paying jobs, the aspiring middle class, who makes up the majority in any societies, would find it very lucrative to learn English, so as to be associated with them. However, in most societies where English is considered a foreign language, learning it in language school is very expensive and usually is an option for the wealthy. As a result, they would pick up bits and pieces of lexical items from the English language, and use it in their speech, maintaining the structure of their native language. An example would be Hinglish, where â€Å"my head is eating circles, is a direct translation of mera sir chakkar kha raha hai., effectively keeping the structure of Hindi. In India, majority of good Standard English speakers are from the upper class due to the exorbitant fees of the language schools. As such, the variation of English in this case reflects the economical incentives and the income gap in the society, where there is a negative association of the variety due to speakers not being able to afford the education of Standard English. In Text B(i), lexical chain pertaining to negativity is adopted to be referred to code mixed languages. They i nclude, â€Å"gutter- speak†, â€Å"bad† and â€Å"consequence† However, as the use of the variation used by the lower and middle class increase due to the population distribution, it might lead to the acceptance of the dialect in the whole society, then coming up with a more organized and uniform variety that most members of society would understand. This uniformity of the variety reflects the social acceptance of the variation. In Text B(i), semantic field of uniqueness is adopted to

Current Technology on Winding Linear Generators Essay -- Physics Elect

Current Technology on Winding Linear Generators Abstract This paper is an overview of the materials and winding technology that is currently used on today’s linear generators. It contains information on the types of wire used as well as the epoxy used to hold the coil windings in place. Furthermore, it contains information on the possible orientations that the coils can have with respect to the permanent magnets. Introduction Linear generators/motors have been around since the early 1900’s with one of the first written references being in regard to Birkeland’s Cannon, then described as a tubular motor but is more accurately described as a reluctance motor. 1 Today linear generators/motors have more widespread, not to mention less destructive, uses such as magnetically levitated trains, and renewable power generation. The Wire Magnet wire is the preferred type of wire used for the windings of linear generators and most other types of generators. This wire is made out of copper wire and insulated with a thin layer of enamel. The thickness of the insulation is much smaller than that of standard electrical wire. The reason for this is to allow for the wires to be packed in closer together while at the same time restricting the current from jumping between wires. Magnet wire comes in various sizes, like most wires, and also has an associated gauge that allows the engineer to determine its ampacity characteristics. Taihan Electric wire company gave the following definition of magnet wire on its website: â€Å"Magnet wire is wound in a form of coil around the core inside the electrical appliances and plays a role of converting mechanical energy into electric energy and vice versa. Magnet wire is widely used in alm... ... Conclusion The research involved in this paper has greatly enhanced our groups understanding of the technology involved in winding linear generators and will be a useful guide during the construction of our prototype. Works Cited 1. E.R. Laithwaite, Propulsion Without Wheels. Hart Publishing Company, Inc, 1968 2. Taihan, November 24, 2003, http://www.taihan.com/taihan_eng/prod/wire/magn_MAGN_m.asp?curMenu=wire 3. Rare Earth Magnets, November 24, 2003, http://www.rare-earth- magnets.com/magnet_university/magnets_electromagnetism.htm 4. Altana Electrical Insulation, November 24, 2003, http://www.epoxylite.com/motors.htm 5. Van Blarigan, Peter. â€Å"Advanced Internal Combustion Electrical Generator.† Sandia National Laboratories. Livermore, CA. 2001 6. Kunel, Heinrich. German Patent: # DE3024814, 01-28-1982

Early Mesopotamian Culture Contributed to the Foundation of Western civilization Essay

I t would be very difficult to argue against the importance of early Mesopotamian culture. The title Mesopotamia refers to the land which lies between two rivers – the Tigres on the east and the Euphrates on the west. The latter is referred to in the Bible in Genesis 2 v14 as flowing out of the Garden of Eden, so it seems that the Biblical writers seem to have felt that this area was where humanity began. The ruins of a city, Ur of the Chaldeans, can still be seen at Tell Mugheir which lies 140 miles south of ancient Babylon and 150 miles to the northwest of the Persian Gulf in modern Iraq. The main part of the ruins cover some 150 acres and were uncovered over many years, beginning with the major excavations of J. E. Taylor in 1854. Chaldean civilzation The Chaldeans were a Semitic people, i. e they spoke one of the Semitic languages and were Caucasians and by tradition they were from descended from Shem, son of Noah. Their civilization was mainly on the banks of the Euphrates, where the land was more fertile and capable of producing rich crops. Animals such as sheep and goats were also domesticated. The Chaldean cities had many of the attributes that we recognize in modern cities at a period when most people of the world were still hunter gatherers. Eridu, which is a few miles to the SSW of Ur, was another religious center, with a mud brick stepped temple to the Chaldean god of the sea and of wisdom. Archeologists have even found the remains of burnt fish left as offerings. It too was rediscovered in the19th century. It seems that the temples were originally built on platforms at ground level, but gradually higher and higher levels were built on the earlier foundations. According to records Eridu was at one time actually on the coast and silt deposits seem to date it somewhere in the 7th millennium B. C. E. , although the earliest settlers in the area arrived about 9,000 B. C. E. according to The History Guide, Lecture 2. The cities seem to have been a response by early settlers in order to organise such things as irrigation, trade and the needs of a larger population. Because of the need to record trading clay tokens came into use, different shapes representing different commodities. As is often the case the city grew up on the banks of the river, it being their source of water and of organised trade. They used dams and weirs to control the water supply, just as a modern people might do. Wooden ploughs were used to break up the soil before planting crops such as barley, turnips and onions. They also grew both apples and grapes and may well have been the first people to discover the means of making both beer and wine, probably by accident at first. J. E. Taylor uncovered a stepped temple mound or ziggurat which climbed in three levels to a height of 70 feet and was known as the Mountain of Heaven. 70 feet may not sound impressive to us, but this would have been the only large building in the plain and visible for miles around. Buried at the four corners of the ziggurat were cuneiform tablets telling of the name of the city and its founder and who had carried out repairs to the temple over the years. So we see that this was a city that was organised enough for its citizens to work together over a prolonged period on this huge construction project. In the temple area were found records revealing that the people paid tithes and that the temple also benefited from trade with other people. Leonard Woolley’s excavation of 1924, as recorded in the Thompson Chain Bible archeological supplement, page 364, revealed some 4 square miles of the city outside this sacred area. Woolley uncovered some 1800 graves including 16 that he designated as ‘Royal’. The cemeteries revealed huge tombs where many retainers had died in order to accompany their king or queen to the after life. So these people were capable of abstract thought and spiritual depth. The people thought that their kings were descended from the gods that they worshipped. Sometimes kings called ‘Shepherds’ because of their responsibilities to care for the needs of the people. These were large rooms as big as10 metres long with walls of both stone and mud brick. There were quays for shipping, commercial buildings, houses of two stories with fire places and sanitary systems. Houses, temples and palaces were decorated with pictures, often depicting victories. There were chapels for worship and a school building where tablets revealed that reading, writing, including grammar, basic mathematics and history were taught. This was almost certainly only for the sons of the elite. Most boys would have learned a trade from their fathers, while girls helped with what were considered more womanly tasks such as grinding corn and weaving. Flax was grown to make linen, quite a complicated process. Men wore skirts, but women wore clothes that covered them from shoulders to ankles. Women wore their hair long, usually braided and most men were clean shaven, even in this time before metal blades. It was a patriarchal society, but amazingly women had rights that they have only in comparatively recent years attained again in many societies – i. e. the right to end an unsatisfactory marriage and the right to own property in their own right. This city used writing to keep records – from such beginnings would later emerge literature of all kinds, poetry, stories, plays, even modern advertising, all of which began when someone discovered that they could make permanent marks that could be later read by themselves and others. They had mathematics – in their case only arithmetic, but this is where all branches of mathematics begin. They were able to trade with other people, both to get rid of surplus goods in a profitable way, and also to obtain what they could not produce themselves e. g. the lapis lazuli found in the royal tombs which may well have come all the way from Afghanistan, although there are small deposits elsewhere in the world. They wrote music and songs. Some songs were written for religious reasons, but many were written to describe important events in the community.. Songs were used by people at every level of society to amuse , but also to educate and were sung to children who passed them on to their children. In this way, just as we teach children nursery rhymes today or sing patriotic songs , songs and ideas were passed on through many generations and were finally recorded in wriitng. These songs provided a means of passing on through the years important information about historical events. Even today they reveal much about this civilization to modern scholars. Later in their history the people of this area founded the Babylonian empire which stretched from the Mediterranean to the Persian Gulf. They would become great astronomers, able to study the planets and stars with great accuracy. Mesopotamia cities served as capitals of the Assyrian, Mitanni, Neo-Assyrian, Neo-Babylonian, Parthian, Sassanid and Abbasid empires. Naturally such a large and complicatedcivilization had to have laws in order to control conduct. It was a Mesopotanian king Hammurabi, in about 1780 BC, who set out what is one of the earliest known sets of laws. He made over 200 laws for Mesopotamia, now know as the Code of Hammurabi. In Genesis 11 we have the description of Abram taking Sarai for his wife, so they understood concepts of family and commitment. According to Dr Gerard Falk Abram was a Hebrew, the name meaning one who crossed over, i. e. one who forded the river in order to look for the land to which he believed God had sent him. Abram, later Abraham, is of course acknowledged as the forefather of both Judaism, and so Christianity and Islam. So these civilizations and their religions, with the idea of monotheism and family and moral values also were born in Mesopotamia. Later in the history of the area the various city states would come to blows over such things as water supplies and rights to land. These were argued over for many years, just as such things occur today, before eventually erupting into war in about 3200BC. Conclusion So we see that many things that we consider to be ‘civilized’ and which are of importance in modern western civilization such as organised city life, trade with other lands, the beginnings of literature and science, agriculture, social interaction, property rights and marriage as well as abstract concepts such as an afterlife and spirituality were present long ago. Alongside these were things we might not be so approving of, yet which are present in modern western societies, such as disputes with neighbouring states, divorce and even war. The Chaldeans kept records, had a legal system, educated their young people both academically and practically and were able to work together to reach common goals. These are all things that we, as modern people still do and still value even after 9,000 years. Bibliography Thompson Chain Bible, King James Version, 1964, London Eyre and Spottiswood. Electronic sources Ancient Mesopotamia found at http://www. shrewsbury-ma. gov/schools/Central/Curriculum/ELEMENTARY/SOCIALSTUDIES/Mesopotamia/ancient_mesopotamia. htm#clothing and retrieved on 15th November 2007 ERIDU found at http://www. experiencefestival. com/a/Eridu/id/105202 retrieved 15th November 2007 FALK, G. Chaldea found at http://www. jbuff. com/c041603. htm retrieved 15th November 2007 LAPIS LAZULI found a t http://www. gemstone. org/gem-by-gem/english/lapis. html retrieved 15th November 2007 Mesoptamia, The British Museum found at http://www. mesopotamia. co. uk/menu. html and retrieved 15th November 2007 SEMITIC definition found at http://www. webster-dictionary. net/definition/Semitic retrieved 15th November 2007 THE HISTORY GUIDE, LECTURE 2 found at http://www. historyguide. org/ancient/lecture2b. html retrieved 15th November 2007