The Function and Structure of Proteins

The Function and Structure of Proteins Proteins are very important molecules in our cells  and are essential for all living organisms.  By weight, proteins are collectively the major component of the dry weight of cells and are involved in virtually all cell functions. Key Takeaways Proteins are involved in just about all cell functions and are key molecules in living cells.The typical protein is constructed from one set of twenty amino acids and a particular proteins design helps with its specific function in the cell.Antibodies, contractile proteins, and enzymes are three important types of specialized proteins found in living organisms.Occurring in the cytoplasm, translation is the process through which proteins are synthesized. Each protein within the body has a specific function,  from cellular support to cell signaling and cellular locomotion. In total, there are seven types of proteins, including antibodies, enzymes, and some types of  hormones, such as insulin. While proteins have many diverse functions, all are typically constructed from one set of 20  amino acids. The structure of a protein may be globular or fibrous, and the design helps each protein with their particular  function. In all, proteins are absolutely fascinating and a complex subject. Lets explore the basics of these essential molecules and discover what they do for us. Antibodies Antibodies are specialized proteins involved in defending the body from antigens (foreign invaders). They can travel through the bloodstream and are utilized by the immune system to identify and defend against bacteria, viruses, and other foreign intruders. One way antibodies counteract antigens is by immobilizing them so they can be destroyed by white blood cells. Contractile Proteins Contractile proteins are responsible for muscle  contraction and movement. Examples of these proteins include actin and myosin. Enzymes Enzymes are proteins that facilitate biochemical reactions. They are often referred to as catalysts because they speed up chemical reactions. Enzymes include lactase and pepsin, which you might hear of often when learning about specialty diets or digestive medical conditions. Lactase breaks down the sugar lactose found in milk. Pepsin is a digestive enzyme that works in the stomach to break down proteins in food. Other examples of digestive enzymes are the enzymes present in saliva. Salivary amylase, salivary kallikrein, and lingual lipase all perform important biological functions. Salivary amylase is the primary enzyme found in saliva and it helps to break down starch into sugar. Hormonal Proteins Hormonal proteins are messenger proteins which help to coordinate certain bodily activities. Examples include insulin, oxytocin, and somatotropin. Insulin regulates glucose metabolism by controlling the blood-sugar concentration. Oxytocin stimulates contractions during childbirth. Somatotropin is a growth hormone that stimulates protein production in muscle cells. Structural Proteins Structural proteins are fibrous and stringy and because of this formation, they provide support for various body parts. Examples include keratin, collagen, and elastin. Keratins strengthen protective coverings such as skin, hair, quills, feathers, horns, and beaks. Collagens and elastin provide support for connective tissues such as tendons and ligaments. Storage Proteins Storage proteins store amino acids for the body to use later. Examples include ovalbumin, which is found in egg whites, and casein,  a milk-based protein. Ferritin is another protein that stores iron in the transport protein, hemoglobin. Transport Proteins Transport proteins are carrier proteins which move molecules from one place to another around the body. Hemoglobin is one of these and is responsible for transporting oxygen through the blood  via red blood cells. Cytochromes are another that operate in the electron transport chain as electron carrier proteins. Amino Acids and Polypeptide Chains Amino acids are the building blocks of all proteins, no matter their function. Most  amino acids  follow a particular structural property in which a carbon (the alpha carbon) is bonded to four different groups: A hydrogen atom (H)A Carboxyl group (-COOH)An Amino group (-NH2)A variable group Of the 20 amino acids that typically make up proteins, the variable group determines the differences among the amino acids. All amino acids have the hydrogen atom, carboxyl group,  and amino group bonds. Amino acids are joined together through dehydration synthesis to form a peptide bond. When a number of amino acids are linked together by peptide bonds, a polypeptide chain is formed. One or more polypeptide chains twisted into a 3-D shape forms a protein. Protein Structure We can divide the structure of protein molecules into two general classes: globular proteins and fibrous proteins. Globular proteins are generally compact, soluble, and spherical in shape. Fibrous proteins are typically elongated and insoluble. Globular and fibrous proteins may exhibit one or more types of  protein structure.   There are four levels of protein structure: primary, secondary, tertiary, and quaternary. These levels are distinguished from one another by the degree of complexity in the polypeptide chain. A single protein molecule may contain one or more of these protein structure types. The structure of a protein determines its function. For example, collagen has a super-coiled helical shape. It is long, stringy, strong, and resembles a rope, which is great for providing support. Hemoglobin, on the other hand, is a globular protein that is folded and compact. Its spherical shape is useful for maneuvering through blood vessels. In some cases, a protein may contain a non-peptide group. These are called cofactors and some, such as coenzymes, are organic. Others are an inorganic group, such as a metal ion or iron-sulfur cluster. Protein Synthesis Proteins are synthesized in the body through a process called translation. Translation occurs in the cytoplasm and involves the translation of genetic codes into proteins. The gene codes are assembled during DNA transcription, where DNA is transcribed into an RNA transcript. Cell structures called ribosomes help translate the gene codes in RNA into polypeptide chains that undergo several modifications before becoming fully functioning proteins.

Inconsistent Hyphenation

Inconsistent Hyphenation Inconsistent Hyphenation Inconsistent Hyphenation By Maeve Maddox I have a bad habit (for an American) of looking things up in the OED first and not checking to see if Merriam-Webster agrees. Sometimes this habit results in my changing a spelling that’s acceptable in U.S. usage or hyphenating a word that M-W doesn’t. When I recently encountered online examples of the unhyphenated words unAmerican and copayment, I consulted both dictionaries to see if I had fallen behind the times. Both OED and M-W show co-payment and un-American as the only options. Even the AP Stylebook allows a hyphen in un-American. Perhaps online journalists and merchants who do not hyphenate these words are using other style guides. Or maybe they just don’t care. Here are some examples that indicate that not everyone thinks that words like co-pay, co-payment, co-insurance and un-American require hyphens or even that adjectives from proper nouns require a capital. Copayments and Other Information (Wisconsin information site) Whats the difference between copays and coinsurance? (Quicken app FAQ) The member only pays their copayment for any additional admissions (Blue Cross information site) â€Å"UnAmerican Graffiti† (episode title, NYPD Blue) â€Å"Unamerican† (song title on Cletus Got Shot album) Unamerican (section title, Huffington Post) My email to my unAmerican Representative (headline, Daily Kos) Knowing when to hyphenate nouns formed with common prefixes like co- and un- can be tricky, even when consulting a dictionary or stylebook. For example, M-W hyphenates co-pay, but not coeditor. CMOS (Chicago Manual of Style) goes with coeditor, but opts for co-opt. Both OED and AP give the nod to co-editor, and every one of the sources I use acknowledges the spelling un-American. I find myself wanting to pick and choose according to my own feelings about the way a word looks. Because I don’t like the look of coeditor and coauthor, I want to go with AP’s â€Å"Retain the hyphen when forming nouns, adjectives and verbs that indicate occupation or status.† But although AP includes co-author, co-pilot and co-star in the â€Å"occupation-status† category, they relegate coed to their unhyphenated list. If I want to write co-ed, I have to turn to M-W for justification. Professional writers don’t have the option of this kind of mixing and matching. Publishers, on the other hand, do. Some publishers and organizations compile their own† house style guides,† usually based on one of the standard guides, but altered in some respects. For example, the AP Stylebook recommends using the country name Myanmar. For political reasons, a publisher might supersede that rule, requiring his writers to refer to the country by its former name, Burma. In the absence of a house guide, writers whose employer has adopted a particular style guide are bound to follow it, regardless of personal preference. Freelance writers, who are their own employers, should adopt a guide for themselves to follow. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Punctuation category, check our popular posts, or choose a related post below:50 Handy Expressions About HandsHow to Play HQ Words: Cheats, Tips and Tricks"Wracking" or "Racking" Your Brain?

What is beauty Essay Example | Topics and Well Written Essays - 500 words - 1

What is beauty - Essay Example fixed in the subconscious memory of the person at the gene level as a result of human evolution. This implies that beautiful form, line, shape and color combination are practical solutions worked out by millions of years of natural selection. Can something be beautiful to one person but not to another?  David Hume said that: â€Å"Beauty is no quality in things themselves: It exists merely in the mind which contemplates them; and each mind perceives a different beauty. One person may even perceive deformity, where another is sensible of beauty; and every individual ought to acquiesce in his own sentiment, without pretending to regulate those of others†. (Hume. p.136) I consider that this thesis is the main concept of beauty. In my understanding of this question I relay on this thesis. So I can say â€Å"Yes†, one and the same thing can be beautiful to one person but not to another. Does a work of art have to be beautiful to be considered good art?  I consider that the art must be beautiful. Some pictures of modern artists can be called art but not all the people find them beautiful. Here be back to the main concept of beauty saying that one and the same thing can be interpreted in different ways by different people. The understanding of beautifulness of the art can vary depending on the persons’ perception. It also depends on a cultural belonging of a person that is what we call authentic art of different cultures. So, as an inference I can say that art is a very versatile concept which cannot be enclosed in one thing as a beauty-gauge. Is beauty just a physical thing? Who or what decides what the standers of beauty are? Scientists have found that from the microcosm to the cosmos, everything exists in harmony due to the law called the "divine proportion". If there is a subjective idea of ​​beauty, a masterpiece of music, painting or poetry, everything meets this criterion. It could be derived geometrically from a right triangle and his unit

Globally Optimized Operations Research Paper Example | Topics and Well Written Essays - 1250 words

Globally Optimized Operations - Research Paper Example Nonetheless, all parties logistically involved in optimized operations must ensure they work together for the success of the supply chain. Secondly, a wise investment in IT also spearheads a successful achievement of chain supply logistics. Variety of quantity chain supply practices are available, though lack informational values. Supply chain to some extent can be ineffective if companies do not embark on a selective mode of IT solution that best suits their specified supply chain requirements. It is preferably important to ensure that all budget considerations, logistical operational goals and other relevant optimal operations factors are put in place. These factors are predominantly the most effective tools for regaining control over operation procedures and proving supply chain customers with visibility and service. This research paper explains the globally optimized operations. Globally optimized operations analytically must provide clear and conscious information. Logistically, using a single automated database ensures that trading partners can fasten their communication variables in a language compatible with other companies. The communication aspect of globally optimized operations ensures that the logistical companies easily identifies themselves with common and key performance indicators that provide superimposed levels of integration for the shared processes and systems in the global corporation system. Ideally, keeping the staff’s skills up to date may also act as a rationally globally operationalized operations element. The IT department of the optimized operation or the technology resource should have an overwhelmingly quality-assured process (Bomze, 2007). Quality assurance in the globally optimized operations ensures all the skills are current and moves in a forward direction, which is in line with all the logistical operations. The docum entation of the optimized operations and learning resources must be put in

Psychological Testing Essay Example for Free

Psychological Testing Essay There comes a time when we all come across a specific test such as school tests, driving test, or even as simple as food tasting test. However, there is a difference between regular tests and testing’s when referring to psychological testing. There are several different psychological tests that many psychiatrists, psychologists, and school counselors use to determine certain abilities, however each of the tests are used for a specific purpose. It is vital for the individuals to contain high knowledge of the tests before applying it to others. Defining â€Å"Test† According to the medical dictionary, psychological tests are defined as written, visual and verbal evaluations administered to assess the cognitive and emotional functions of children and adults (Psychological Tests, 2012). The purpose for psychological testing is to determine the mental abilities, personality traits, achievements and abilities, and neurological functioning. Although, we all have a basic idea of what the definition of â€Å"test† is, however according to (Hogan, 2007), they developed six-element to define â€Å"test†: A test is a standardized process or device that yields information about a sample of behavior or cognitive processes in a quantified manner (Hogan, 2007). Major Categories of Tests There are five major categories of tests that are applied by trained professionals in the field of psychology. The five major categories are mental ability tests, achievement tests, personality tests, interests and attitudes tests, and neuropsychological tests (Hogan, 2007). The mental ability test is applied to test the cognitive functions, such as memory, spatial visualization, and creative thinking (Hogan, 2007). Within the category of mental ability tests, it is separated into other categories of tests that may also be applied such as; individual administered intelligence tests, group administered tests, along with several other ability tests. Second, the achievement tests are created to help determine the placements of students in school based on their knowledge and skills. Achievement tests are subdivides in to batteries, single subject, and certification and licensing, government sponsored programs, and individual assessment tests (Hogan, 2007). Third of the major category tests is the personality tests, with this test professionals are able to determine the reasoning of the human personality. Within this category it is also alienated into other subdivisions such as objective tests and projective techniques (Hogan, 2007). Next is the interest and attitudes tests, these tests are put together to help individuals maintain focus on a specific subject of interests either if it is in school or in a job placement. This category is subdivided by vocational interests and attitude scales (Hogan, 2007). Lastly, the neuropsychological tests, the main purpose of this test is to illustrate information of the functioning of the central nervous system, mainly focusing on the information coming from the human brain (Hogan, 2007). Uses and Users Just as all psychological tests are categorized, not all tests are applied for the same use and the same users. Each test is done by a trained or professional to determine what is the situation based on the results and to see what treatment is best for the individual. There are four major psychological tests users are clinical, educational, personal and research (Hogan, 2007). Clinical users are professionals in the psychology field of clinical psychology, counseling, school psychology and neuropsychology. Psychologists use several methods of tests to identify the nature and severity of the problem, and perhaps provide some suggestions on how to deal with the problem (Hogan, 2007). The users of educational settings are teachers, educational administrators, parents and the general public. The major use of educational settings is to establish the ability and achievements of an individual. Another reason that users use educational is to predict the success in academic work (Hogan, 2007). Next, the users that use personal tests as there usage are business and military. Psychological test are used by these users to acquire the right individual for the task or to fill a position in job placements (Hogan, 2007). The last test use and users is research, the users in this category are varied and it is used to test the education and other social/behavioral sciences (Hogan, 2007). Reliability and Validity According to research reliability is best defined as, is the test is reliable if it produces the same results over and over again, when measuring the same thing. As to validity, it is defined as, a test is valid if it measures what you think it measures, as determined by some independent way of measuring the same thing (Dewey, 2007). It is important to psychologists to understand not to use the wrong test for a different purpose than what the actual purpose was. Then the validity of the measurements of the test scores is not reliable. Conclusion To summarize, psychological tests are being used by many users to acquire adequate results of an individual either if it is for school, careers, or just a personal socialization. Also, as research continues to advance more tests will continue to be implemented to better help others and to have a better result on the treatment that is to be used by the users.

F. Scott Fitzgerald’s All the Sad Young Men Essays -- Fitzgerald Sad Y

F. Scott Fitzgerald’s All the Sad Young Men F. Scott Fitzgerald’s All the Sad Young Men was his sixth book. The work was composed of nine short stories that had been published in magazines such as the Saturday Evening Post over the course of the previous year. The work was Fitzgerald’s third short story collection and followed the Great Gatsby in publication on the 26th of February 1926. To most, this book signaled Fitzgerald’s staying power as many of his seniors had believed that his initial success as a writer was lucky. They did not take Fitzgerald seriously as an author. On the whole, critics valued the work and praised some of the stories as the best Fitzgerald had written to date. The collection of short stories in All the Sad Young Men included: â€Å"The Rich Boy,† â€Å"Winter Dreams,† â€Å"The Baby Party,† â€Å"Absolution,† â€Å"Rags Martin-Jones and the Pr-nce of W-les,† â€Å"The Adjuster,† â€Å"Hot and Cold Blood,† â€Å"The Sensible Thing,† â€Å"Gretchen's Forty Winks.† Of these, â€Å"Absolution† was widely considered to be the best as it was an artistic piece as opposed to the ones that the critics claimed Fitzgerald wrote to sell. â€Å"Absolution† is a story about an eleven year old boy and a priest; even those who did not like this collection wrote favorably about this story. One critic said of â€Å"Absolution,† â€Å"Yet, it must be said, immediately, that ‘Absolution’ is a penetrating and profound effort to articulate life in primal and dark conflict. It is simple and stripped of all artifice. The poet and humanist in Fit zgerald is in this counting of the search of a boy and an elderly priest for absolute truth, in the conflicting presence of the demands of daily life with its common everydayness of people and trivial affairs.†[1] ... ...cal jazz age mold and reached new audiences. Fitzgerald also received the common criticism that he was writing to sell; many critics felt that â€Å"Absolution† and â€Å"The Rich Boy† with a few others from the selection were the only works of merit. Bibliography ed. Bryer, Jackson R. F. Scott Fitzgerald: The Critical Reception. Burt Franklin & Co., Inc. 1978. http://www.people.vcu.edu/~bmangum/asymcr.html. (This site is not very informative.) http://www.sc.edu/fitzgerald/collection/dustjackets/sadmen.html. (Dust jacket) [1] Bryer, Jackson R. Pg. 258. [2] IBID. Pg. 259. [3] IBID. Pg. 253 [4] IBID. [5] http://www.georgetown.edu/tamlit/collections/fitzwrks.html#dreams [6] IBID. Pg. 260. [7] IBID. Pg. 258. [8] IBID. Pg. 259. [9] IBID. Pg. 261. [10] IBID. Pg. 261. [11] IBID. Pg. 270. [12] IBID. Pg. 269.

Virtual Reality Research Paper

Technology has transformed people’s perception of the world by either creating new environments for them to traverse, or by providing them passage to corners of the earth they will never otherwise visit in their entire lifetimes. Technology has put to reality what people in the past could only dream of. Virtual reality, briefly defined as an environment that is computer-simulated, has transcended social and geographical barriers ever since its applications have been increasingly used by everyday people. Social and geographical barriers are just terms of the past and do not anymore apply on the strictest sense. Everyone can be anyone online. Whereas before it was limited only to labyrinth and high-cost applications availed of by expert users, virtual reality has now broadened its breadth to encompass the general public – which optimizes the Internet to configure, share and create virtual communities – benefitting society in the areas of education, law enforcement, medicine and industries. Defining Virtual Reality Virtual reality is an environment, which is computer-simulated, and the simulation could be that of an imaginary world, or a real one (Gajera, n.d.). Virtual reality environments are mainly three-dimensional â€Å"visual experiences† that are â€Å"displayed either on a screener through special or stereoscopic displays,† and enhanced by sensory information such as sounds that emanate from headphones or speakers (Gajera, n.d., p. 3). There are modern applications that provide force feedback or tactile information, which are generally used for gaming and medical applications. To experience this, multi-modal devices such as the omni directional treadmill, the Polhemus boom arm, or a wired glove is used, as in Figure 1 at Appendix Page (Gajera, n.d.). Michael R. Heim, in his book entitled, â€Å"The Metaphysics of Virtual Reality,† has named seven applications of virtual reality: network communication, full-body immersion, telepresence, immersion, artificiality, interaction and simulation (Gajera, n.d.). In light of these, a virtual environment may be defined as a digital space in which a user’s activities are monitored, and â€Å"his or her surroundings rendered, or digitally composed and displayed to the senses, in accordance with† those activities (Fox, Arena & Bailenson, 2009, p. 95). According to Jesse Fox, Dylan Arena, and Jeremy N. Bailenson, the critical element of the most fascinating virtual reality experiences is the hindering real, sensory impressions; a user’s senses are engaged in the virtual world, with the body consigned to a reality engine, as in Figure 1 at Appendix Page (Fox, Arena & Bailenson, 2009, p. 95). Technically, the virtual reality system uses both software and hardware which allow developers to produce virtual reality systems (Riva, 2009). The hardware elements are equipments, such as the central processing unit, the monitor, and other peripheral tools that receive inputs coming from devices that are manipulated by the user, and sends â€Å"multi-sensory output† to generate an imagery of a virtual world (Riva, 2009, p. 337). Meanwhile, the software element of a virtual reality system does not really create the virtual world. Rather, there is a separate software which projects the virtual world through the use of the virtual reality software system (Riva, 2009, p. 337). Hence, a virtual reality system is made up of a graphic rendering system, a â€Å"database construction and virtual object modeling software† and the input and output tools (Riva, 2009). The Impact of Virtual Reality on Society Virtual Reality has taken the world by storm, and is now tagged as the next dominant technological development. In the same way as the Internet, virtual reality was created for a specific purpose – but modern technology has made it more versatile. At first, virtual reality was conceptualized as a new medium of entertainment; but as time passed, it has found more useful uses from providing online education, to applications in the medical field and giving hope to people with terminal diseases. Currently, virtual reality is used in (i) businesses, specifically in the presentation of graphs and charts, (ii) industries like the automotive industry’s manufacturing arm, (iii) military for simulations and training, (iv) medical field for treatments of various ailments and disorders, and (v) education, specifically in laboratories, online education and virtual museums (Fortune City, 2010). It is foreseen that in the future, virtual reality will further enhance training at medical schools, commercial airlines, the Air Force, and will even be utilized by clothing manufacturers in the form of virtual reality shopping (Fortune City, 2010). 1. Education Educators and scientists have joined forces all throughout the U.S. to establish virtual reality education to students and teachers alike, through the use of head-mounted displays (HMD), Immersawalls, ImmersaDesks and Cave Automated Virtual Environments (CAVEs), see Figure 3 at Appendix Page (Rusch, Sherman & Thakkar, 2002, p. 205). CAVE has a standard size of 10’ x 10’ x 10’ space and has a floor, ceiling and three walls. Students utilizing this system don stereographic glasses which intensify images, and use a CAVE wand to assist that user as, i.e., molecule, or pedestrian, or fish, in navigating the virtual environment (Rusch, Sherman & Thakkar, 2002, p. 205). This is just a bird’s eye view of the role that virtual reality will play in education. Despite the fact that there are a good number of educational applications of virtual reality being availed of in the U.S. these days, the development of virtual reality has not yet achieved its maximum potential in the classroom (Rusch, Sherman & Thakkar, 2002, p. 205). The field of Career Technical Education has begun to benefit from virtual reality. Students can explore operating rooms, submarines, a prototype car, airplane cockpits, biotech laboratories, crime scenes and agricultural farms without having to travel, through the use of virtual reality (Ausburn & Ausburn, 2008). Again, through the use of CAVEs and HMDs, students are provided with three-dimensional simulations to give them a â€Å"sense of ‘being there’† (Ausburn & Ausburn, 2008, p. 43). This is not only beneficial in giving students a feel of the real thing but is also highly cost-effective for them. Those who cannot afford these courses in the past because of costs associated with training are now able to enroll in CTE courses because of virtual reality. A good number of careers necessitate learning that will allow individuals to safely carry out their tasks amid dangerous circumstances. In the past, students had to actually go through the tests using real-life situations. Because virtual reality is supremely realistic, it enables the student to benefit from active involvement with accurate and intricate visual scenes (Ausburn & Ausburn, 2008). Hence, training programs utilize virtual reality for railway and mining operations, dangerous driving scenarios, handling of hazardous materials, nuclear energy, marine exploration, space and aviation exploration, emergency medical operations, firefighting, military and law enforcement (Ausburn & Ausburn, 2008). The aim of these training programs is to teach students how to efficiently and effectively respond under high-cost, high-risk and complex circumstances, without damaging equipment and endangering personnel while still at training. There is no need for students to be apprehensive about the trainings because they are all simulated and safe. Despite being safe, they resemble the real scenarios such that students learn what they need to learn to equip them with the skills needed to respond according. The military uses simulated environments for its engineering squad to allow them to build or dismantle structures under different constraints without the personnel's lives in danger. Educational programs for courses like spray painting, bio-technology, aircraft maintenance, crime scene investigation and forensics, engineering, dentistry, surgical technology and welding also benefit from virtual technology. Because the technology is still fairly new, CAVEs are expensive to avail of. Moreover, it is also expensive to implement and sustain, because of the specialized skills that are needed to set it up and maintain it. Nevertheless, as technology continues to evolve, there is much promise for virtual reality systems that may be used through laptops or desktops, utilizing special software that are based on JAVA, Flash and QuickTime technologies (Ausburn & Ausburn, 2008). Figure 4 illustrates how virtual reality may be accessed from a web system (Ottoson & Holmdahl, 2007). Because of the benefits offered by virtual reality technologies, there is a high degree of enthusiasm surrounding it in the world of the academe. Figure 5 summarizes the benefits of virtual reality in education. 2. Law Enforcement Taking its cue from the September 11 terrorist attacks, the U.S. has been innovating on taking protective measures preserve the security of its citizenry. One effective way of doing this is through the use virtual reality for training and intelligence gathering purposes. The U.S. intelligence community has been using virtual reality to simulate â€Å"actual battlefields in the future,† utilizing cyber weapons for initiating attacks against terrorists and other potential adversaries (Wilson, 2008, p. 4). Military use of virtual technology is efficient and effective in training personnel manage better under potentially risky scenarios. Participants utilize avatars in virtual environments that simulate, i.e., a checkpoint in Iraq, or a New York subway tunnel subjected to terroristic chemical attacks (Wilson, 2008). The downside is that a study conducted in 2007 showed that American firms are not ready to take the lead in embracing Web 2.0 technology which is the foundation of virtual technology in the years to come. The leaders in this area are (i) India, with plans of escalating their virtual reality investments by 80%, (ii) Asia-Pacific companies, by 69%, (iii) European companies, by 65%, (iv) Chinese companies, by 64%, (v) North American companies, by 64%, and (v) Latin American companies, by 62% (Wilson, 2008, p. 4). Number one in the list, India, has been showing a strong economic presence in the global markets. Figure 6 indicates its industry production forecast until 2012 (Economist Intelligence Unit, 2010). The implication here is whether the U.S. can protect its citizens if its virtual reality servers and communication systems were operated by another country – very much possible, by an enemy nation. Under wraps in the virtual reality program of the military is â€Å"Sentient Worldwide Simulation,† which will depict mass casualty events, that not only need military action but medical interventions as well. Hence, this program includes virtual reality hospital rooms that emulate military and civilian facilities, populated by avatars representing victims, casualties, nurses, the National Coast Guard and other first responders. Prior to Hurricane Katrina, virtual reality was used as a training ground for emergency responders in the event of man-made or natural disasters. Other training simulation modules are â€Å"Urban Resolve,† for urban war fighting in Baghdad in the year 2015, with over two million simulated objects (Wilson, 2008, p. 5). In addition to this, â€Å"Noble Resolve† is being developed, which is a training exercise covering â€Å"homeland security scenarios† in the event of a terroristic attack in various strategic locations in the country (Wilson, 2008, p. 5). This allows personnel the opportunity to hone their skills in coordinating and responding. Meanwhile, police units utilize virtual reality programs such as the Meggitt Training System, which teaches basic firearms skills and responses in â€Å"both shoot/don’t shoot decision making (Griffith, 2009). The Los Angeles Police Department uses the IES Milo System; the Niagara Frontier Transportation Authority Police Department uses the Advanced Interactive Systems; and, the Phelps County Sheriff’s Department uses the IVR-300. Most of these systems permit multiple students in the virtual environment (Griffith, 2009). 3. Medicine Techniques in virtual reality are increasingly being utilized in medical education, treatment and diagnosis (Yellowlees, 2009). Early adoptions of virtual reality in the field of medicine pertained to representation of intricate data emanating from Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) (Yellowlees, 2009). Recently, virtual reality has been applied to virtual colonoscopy in which information from â€Å"contrast enhanced abdominal CT scan† is utilized to present a â€Å"fly-through of the colon† which is then used for screening for colon cancer. Virtual reality is also used to let medical professionals study the heart and the brain without causing damages to these organs in real people (Yellowlees, 2009). They can examine different diseases in simulated environments, as well as, responses necessary to prevent patients suffering from fatal attacks. Phobias and post-traumatic stress disorders are also being treated now using virtual reality, Figures 7 and 8 illustrate virtual environments for the treatment of agoraphobia (Cà ¡rdenas, Munoz, Gonzà ¡lez, and Uribarren, 2006). These virtual environments can help patients confront their fears by recreating them using computer technology. In particular, training for medical students are enhanced by the use of a virtual psychosis environment, wherein they have the opportunity to experience visual and auditory hallucinations of schizophrenic patients (Yellowlees, 2009). As mentioned earlier, indispensable training may be provided by virtual reality for mass casualty, as well as for disaster response and medical emergencies. Although it has been found out that the use of standardized patients for training such as these were more effective because of the realism element, virtual reality simulations were more cost-effective, it was also advantageous in the sense that the simulations may be repeated unlimitedly, so that skills may be practiced and mastered (Yellowlees, 2009). Virtual reality has been used in other areas of medicine like in chemotherapy distraction intervention, providing leisure time opportunities for people with intellectual and physical disabilities, brain damage rehabilitation for stroke victims, smoking cessation, physical therapy, autism, mental retardation and other relevant areas. 4. Business Marketing efforts for businesses have been greatly enhanced by virtual reality. Business owners can now advertise their products over various multi-media, and depict a 360-degree image of products that they are manufacturing, marketing and selling. Websites have been high-tech critical missions for Top 500 companies, triggering a competition on virtual reality advertising (Kassaye, 2006). Figure 9 depicts a chart tracing these new breed of competitors and how they fare through their communication objectives (Kassaye, 2006). Meanwhile, virtual reality is also useful for the manufacturing process, because layout planning for assembly systems and machines require â€Å"more data than the basis geometry (Okulicz, 2004). Moreover, 3D CAD Systems are not effective for plotting out production processes, and virtual reality has no restrictions as the two aforementioned processes (Okulicz,2004). In addition to this, virtual reality provides semi-immersive and/or interactive immersive visuali zation that is essential for the visual estimation of each manufacturing process (Okulicz, 2004). With some slight overlap with the aforementioned field of Education, virtual reality platforms are valuable in training and education for businesses. For instance, â€Å"developing, testing and operating† sophisticated machinery and fixing it under tight tire pressure when it malfunctions are some skills that employees in the industries have to master (Blumel, Termath and Haase, 2009). Companies benefit from investing in learning platforms like the Fraunhoffer IFF Learning Platform which utilizes virtual reality in customizing training modules to suit its end users’ levels of knowledge through configuration (Blumel, Termath & Haase, 2009). Virtual Reality in the field of business encompasses a much broader scope, and development in this area is anticipated to be quick and impressive. In some industries, particularly that of construction, virtual reality has been applied to simulate office environments wherein real-time coordination can be done. This is very useful in project management wherein the main participants are located in different locations. They can simply log on to the virtual environment and provide updates for others to see. There is no need to call on meetings in a physical location because this can be done in virtual reality. Conclusion People have benefited from virtual reality in more ways than one, attesting to the fact that it has positively impacted society in general. Education has been enhanced by virtual reality, and students have been provided a new dimension of learning that prepares them for their chosen careers more efficiently. The dangers associated with real situations have been eliminated because they can already be replicated using virtual reality. Students get the benefit of the trainings without facing real dangers. Meanwhile, security measures being adopted by the government have been highlighted with modern technology, especially virtual reality. Police and military forces can now be trained for highly-dangerous scenarios, without actually exposing them to great risks, which is similar to what students do. The military and special forces in particular greatly benefits from virtual simulations because they can rehearse their acts before going to missions in dangerous lands. On the other hand, the medical field has furthered its growth due to the advent of virtual reality. Of the advantages of virtual reality, this is one of the most significant because of its potential in assisting scientists discover life-saving technologies and techniques. Lastly, business enterprises also benefit from virtual technology, to enable organizations to compete more in international markets. Virtual reality has a long way to go, and more benefits are anticipated for humankind. Its potentials are still great and th e possibilities remain vast for applying virtual technology to life.

US History Journal

Don't forget to add De tails! (1 point) When had to leave my home I was not allowed to take what I wanted, I was f arced to take what the army allowed me to take and it is almost winter. When where now traveling and we needed food, so I had to hunt but my gun was taken, luckily I had my blowhard gun. I killed a small deer and everyone wanted a pie We had arrived at the Mississippi River and had to cross, my cousin and grand father had drown but had to continue. 4. These ideas will become the body sentences of your paragraph. What is the e best order for these ideas? Number them in the order you think they should go.Don't worry if you need to reword some of them. And it's O. K. To leave out an idea if it doesn't seem to if t, but you need at least three examples. (1 point) 1. Leave my home and only able to pack what the army will allow, it is almost winter. 2. Have to hunt with a blowhard gun because my gun was taken away. 3. Have to cross the Mississippi river and loved ones drown bu t I continue 4. Have reached Tattletale, Oklahoma, many loved ones have died 5. You need a topic sentence now. Is there a word or idea that describes all of your experiences? Maybe something like this: My experience on the Trail Of Tears made me angry.Or, the Trail of Tears was a terrible experience. (1 point) The Trail of Tears was the worst experience of my life. Writing Assignment Write a complete paragraph that describes your experiences on the Trail of Et ears. Use the topic sentence and support you completed in the preprinting section. Add a co inclusion to finish your thoughts. Be sure to use lots of good detail. Of course, if you need to add other ideas, you can do that, too. This assignment is worth 15 points. The Trail of Tears was the worst experience of my life. It began when my family yell had to our my home. I was not allowed to take what wanted, was forced to take what the army

Adlileh! Adlileh! the sound of my mothers voice Essays

Adlileh! Adlileh! the sound of my mother's voice Essays "Adlileh! Adlileh!" the sound of my mother's voice forced me to stir out of a deep sleep. "Adlileh!" I grunted slightly so that she would continue. "Adlileh my darling you would never guess the news I received today!" not waiting for my reply mother continued, "Your cousin's good mother's son's best friend's brother has agreed to marry you!" By this point I was beyond confused, that I just reflected my mother's excitement. "He is coming over this afternoon so there's no time to waste!" my mother yanked me out of bed and making list of what was in store for my today, "Your aunty is working on a dress for you." It only just came to my realisation that I had never met this boy in my life, "..Rayseh has agreed to do your makeup so that there is no way that he can change his min-" "Mother how can I marry someone I have never met before what if he is a vile, poor and rude." "Darling don't be ridiculous I wouldn't give you away to a man of any of those qualities, he is rich and has a lot of potential, besides you are 21 time to get married and start making a life with someone it's final anyways your opinion is irrelevant!" People fear the Muslims and their opinions because of the way they are portrayed global. Because of the recent attacks that have occurred during the last few years Muslims have been stereotyped as having warped ideas of what is truly right this article talks about the how people should far the opinions of the Muslim community in Britain which can be influenced through this stereotyping all the community as extremist.

Quotes from Gray Panther Leader Maggie Kuhn

Quotes from Gray Panther Leader Maggie Kuhn Maggie Kuhn is best known for founding the organization often called the Gray Panthers, a social activist organization raising issues of justice and fairness for older Americans. She is credited with the passage of laws prohibiting forced retirement and with reform in health care and nursing home oversight. She worked for many years with the Young Womens Christian Association (YWCA) in Cleveland and then with the United Presbyterian Church in New York City, doing programming for social causes including on race, womens rights, and the elderly.  (Note: the organization called Gray Panthers was officially known at first as the Consultation of Older and Younger Adults for Social Change.) Selected Maggie Kuhn Quotations   My goal is to do something outrageous every day. Few people know how to be old. Stand before the people you fear and speak your mind- even if your voice shakes.   We who are old have nothing to lose! We have everything to gain by living dangerously! We can initiate change without jeopardizing jobs or family. We can be the risk-takers.   A healthy community is one in which the elderly protect, care for, love and assist the younger ones to provide continuity and hope   Were missing a historical perspective that older people can provide. My generation has to be heard and heeded   Learning and sex until rigor mortis. When you least expect it, someone may actually listen to what you have to say.   There is a pervasive societal bias in the U.S., which contends that old age is a disaster and a disease.... On the contrary, it is a part of the continuum of life and oug   Ã‚  Weve had enormous success all out of proportion to our numbers. We have set a pace. Weve been very outspoken in our positions, and weve caught the attention of the media. Power should not be concentrated in the hands of so few, and powerlessness in the hands of so many.   Many things started by a person disappear when the person dies, but Id consider my job a failure if that happened.   [What] I dream of and yearn for is that the Gray Panthers will continue to be on the cutting edge of social change, and that the young and old together will continue to work for a just, humane and peaceful world.   about a protest in Washington, DC:  The police came on their horses and rode right into us, you know. That was frightening, those enormous beasts and those hard shoes. A blow could kill you.   about the name Gray Panthers:  It’s a fun name. There’s a certain militancy, rather than just a docile acceptance of what our country’s doing. Old age is not a disease- it is strength and survivorship, triumph over all kinds of vicissitudes and disappointments, trials and illnesses.   Im an old woman. I have gray hair, many wrinkles, and arthritis in both hands. And I celebrate my freedom from bureaucratic restraints that once held me. The worst indignity is to be given a bedpan by a stranger who calls you by your first name.   If you are not prepared, retirement at 65 makes you a non-person. It deprives you of the sense of community that has previously defined your life. By the year 2020, the year of perfect vision, the old will outnumber the young.   Old people as elders of the tribe should be seeking and safeguarding the survival of the tribe- the larger public interest Men and women approaching retirement age should be recycled for public service work, and their companies should foot the bill. We can no longer afford to scrap-pile people. There must be a goal at every stage of life! There must be a goal!   What she wanted on her tombstone:   Here lies Maggie Kuhn under the only stone she left unturned.

Project management---management of project organization Essay - 1

Project management---management of project organization - Essay Example The United Nations; Food and Agriculture Organization (FAO); The World Bank Group; International Committee of the Red Cross; CARE; Mercy Corps; President’s Emergency Plan for AIDS Relief (PEPFAR); Oxfam; World Vision International; Plan International; ActionAid; Doctors Without Borders; Greenpeace; World Wide Fund for Nature; ADRA; CAFOD; Save the Children International; SOS Children’s Villages. In project-oriented organizations personnel and departments are organized around individual projects. For instance, many project-oriented organizations have project managers that manage teams of personnel. These personnel are usually from different departments and have different responsibilities, but all are required to successfully implement the project. Typically, many teams operate simultaneously, but they do not have to interact with each other because each is focused on completing its own project (Cordes 2013, pg. 37). Project-oriented organizations employ structures borrowed from organizations based on functions, hierarchies, and operations. They use a matrix structure in which important organizational functions are housed in a management structure, while the work is conducted in project-based teams that have a hierarchical structure. Unlike the construction contractor, the management consulting company would have an organizational structure that is umbrella-based. This means that it includes all organizational structures that are not based around projects. It would, in summary, employ a functional model as its organizational structure, unlike the construction contractor’s matrix model. In the functional model, a manager supervises several different department heads, each of who manages one department in which specific tasks are carried out (Gibbons 2013, pg. 12). For instance, the management consulting company may have several departments for accounting, human resources,