Drosophila Essay Example | Topics and Well Written Essays - 1500 words

Drosophila - Essay Example Mutant flies, with fault in any of numerous thousand genes are presented, and the entire genome has lately been sequenced. The drosophila egg is about mm long. It takes about one day after fertilisation for the embryo to grow and emerge into a worm-like larva. The larva eats and develops constantly, moulting one day, two days, and four days after hatching (first, second and third instars). After two days as a third instar larva, it moults one more time to form a motionless pupa. Over the next four days, the body is totally altered to give the adult winged form, which then hatches from the pupal case and is prolific within about 12 hours. Drosophila is so admired; it would be nearly unfeasible to list the number of effects that are being done with it. Initially, it was mainly used in genetics, for example to learn that genes were associated to proteins and to learn the rules of genetic legacy. More lately, it is used mainly in developmental biology, stare to see how a multifaceted organism arises from a comparatively simple fertilised egg. Embryonic development is where most of the concentration is determined, but there is also a great deal of attention in how a variety of adult formation develop in the pupa, mainly purposeful on the development of the complex eye, but also on the wings, legs and other organs. Mutation analysis Mutation analysis is a pre-eminent investigation too in modern biology. In broad, new mutations are produced and monitor to recognize genes that influence a biological trait of attention. The goal is to recognize the fundamental genes domineering trait manifestation and the role of these genes in the progression. Mutations in D. melanogaster have recognized genes that can raise longevity. In all cases, identical DNA (P elements) was used to encourage the mutations. When a P constituent moves and reinserts itself in another place in the genome it can cause a mutation. As disparate to transgenic over expression, all of the mutations illustrated reduce the expression of, or completely inactivate, precise genes. The first D. melanogaster longevity-extension mutation was in the Methuselah (mth) gene (Lin et al. 1998). The mth alteration results in incomplete loss of function of the gene and widen longevity by 35 percent. The mth gene generates a protein, most probably a G protein--coupled receptor, that fit in to a family of proteins related with a range of functions in higher organisms together with endocrinology, neurology, and reaction to external incentive. The recognized G protein product of the mth gene is not analogous to any of the G proteins of known function in other organisms, and thus the precise function of the mth gene is not compulsory by comparison with other organisms. There is evidence that the mth gene plays a role in regulation of neuromuscular neurotransmitter function (Song et al. 2001). Again, neuromuscular function might be particularly significant for aging and longevity. The mt/i mutation resulted in improved stress resistance (Lin et al. 1998), and the mutant flies were roughly one-third larger than controls. Mutant flies were significantly more resistant to malnourishment,

Analysis of Walmart leadership Research Paper Example | Topics and Well Written Essays - 750 words

Analysis of Walmart leadership - Research Paper Example Further, he convinces them to change their perceptions, and expectations in the process of achieving a common goal. According to Bass, the transformational leadership is made up of several elements such as; focusing on vital priorities, promoting harmony and unity, motivating followers/workers to focus on a common organization goal, and being consistent in decision making. Thus, transformational leadership moves the subject/follower beyond their immediate self interests via inspiration, individualized consideration and intellectual stimulation. Also, transactional leadership tends to refer to the mutual relationship between the follower and the leader to exchange ideas so as to meet their self interests (Bass, 1985; Yammarino et al., 1993). Transformational leadership tends to produce greater positive effects than other leadership styles. The leaders at Walmart utilize this leadership style while running the organization. The transformational theory is made up of four critical elements; inspirational motivation, intellectual stimulation, idealized influence and individualized consideration. Transformational leadership often leads to excellent performance that tends to go beyond the expected outcomes. Lowe et al. (1996) in his analysis of more than 39 studies done to evaluate transformational theory and leadership found out that leaders who exhibited transformational characteristics proved to be more effective leaders than those who did not. Further he stated that these findings were applicable to both higher and lower level leaders as well as to mangers/leaders working in private and public settings. Tracey and Hinkin (1994, 1996) sought to analyze the nature and formation of transformational leadership in the hospitality industry. Their findings indicated that organizational success in the hospitality business industry required leaders who were able to utilize their vision and recognize the relevant environmental changes and how to manage them

Pork Unhealthy And Unsanitary For The Human Body Biology Essay

Pork Unhealthy And Unsanitary For The Human Body Biology Essay The consumption of pig meat has been characterized by a lot of controversy since time memorial. At the outset, different groups of people from different backgrounds have detested the use of pork as food for varied reasons including religious practices, health as well as sanitary concerns. Some people however continue to enjoy pork as a delicious meat with high nutritional value amid such controversies. It is noteworthy that despite its deliciousness, pork presents more harm than good to our general health hence unsuitable to consume. First and foremost, pork is always associated with a variety of biological diseases and worms. According to Russell (2006, 150) three out of six food-borne diseases in the US are caused by pork consumption. For instance, trichina worm is commonly found in pork and usually attack the muscles of the human heart upon consumption of affected pork. The worms have in the past proven fatal to the human health before the current attempts to identify pork with su ch worms had been initiated. Moreover, pork contains high levels of cholesterol and lipids which are harmful to the human health in many ways. Such accumulation of levels of lipids and cholesterol in the human body are associated with heart diseases such as heart attack and high blood pressure and should therefore be avoided at all cost. Besides, many consumers of pork diet have gained excessive weight and became obese in many countries given the fact that pork contains a lot of hormones, cholesterol as well as antibodies. Such individuals are prone to the diseases of the heart including heart thrombosis. On the religious grounds, pork is highly detested by the Muslim religious teachings and is cited as harmful to human health in many ways hence need to be avoided (Winzeler, 2008, 75). Finally, pig is naturally a dirty animal irrespective of how and where it is reared. It plays in filthy environments and eats dirty stuff including its excreta hence generally unhygienic. Pork-based diet has proven both harmful and unhygienic to the human body hence should be avoided at all cost. First and foremost, pigs are animals that are unhygienic by nature even when reared in clean environments. They trot in mud and other dirty and filthy environments in addition to eating unclean foods including rotting carcasses, dead insects, worms, excreta including their own, as well as garbage. As a result, pork-based diet may present harm to the human upon consumption especially when such pork is not well prepared. High sanitary standards should be upheld when handling and preparing such diets to avoid diseases that may be associated with such filth. Besides, pork is associated with a variety of worms and diseases that pose danger to the human health. Such dangers were not established in the twentieth century due to lack of technological tools to do so. Pigs nature to scavenge and feed on any kind of food predisposes them to a lot of illnesses compared to other animals. Illnesses such as influenza are transmitted to humans through consumption of affected pork (Nollet and Boylston, 170). This illness is mostly harbored in the animals lungs and may be transmitted to humans when the latter consumes such infected pork in foods such as sausage. Individuals who eat pork sausage are therefore susceptible to the aforementioned illness during its epidemics. Furthermore, when raw pork is undercooked or eaten raw then trichinosis is likely to occur. This is food poisoning through parasitic infestation of the pork. Trichina worm attacks pigs and settle in the animals lungs and is therefore likely to be transmitted to humans upon consumption of raw or poorly cooked pork. Such illnesses are prominent in countries like US and Canada where one out of six people has trichinosis from eating trichina worms and that the case fatality rate stands at 0.3% (Mead et al, 2010, ). Unfortunately enough, the symptoms of such illnesses are not noticeable during meat inspection and that many people are not informed of the symptoms. Additionally, pigs are cited to be the main carriers of tapeworm usually referred to as taenia solium. These worms are harbored by the animal in its flesh and may be transmitted to humans upon consumption of such pork. The worms therefore inhabit the human intestines initially but may spread to other vital and delicate organs the reby posing dangers to human health. For instance, the worm may cause loss of memory if it invades the brain. It may also cause heart attack as well as blindness if it invades heart and the eye respectively. Managing the effects of tapeworm may prove problematic at some stages because it is incurable at later stages. Pork consumption has been associated to the spread of salmonellosis in humans. Salmonella spp. has harmful effects on the health of humans upon its infestation in the body of the latter through consumption of affected pork. In Netherlands for instance, it is estimated that 15% (5-25%) of all cases of salmonellosis are associated with the consumption of pork. Good manufacturing practices are proposed as the remedy to the disease control. Pig meat is also known for its high fat and cholesterol content which are associated with a variety of harmful effects. To begin with, consumption of pork may lead to cases of obesity and gallstones given the high content of cholesterol as well as saturated fat. Cases of above average number of individuals suffering from obesity are prominent in countries where the consumption of pork is high. These countries include Germany and US among other wealthy nations. The high content of cholesterol and lipids in the pork diet is also associated with the excessive weight gained by the individuals consuming such diets. Such individuals are always prone to physical deformations as well as suffering other disorders affecting the joints such as arthritis. Their body weight is basically excessive to be supported by the joints hence the onset of aforementioned medical conditions. Moreover, the accumulation of fats and cholesterol on the walls of blood vessels expose the affected individuals to dis eases of the heart diseases. Such accumulation of fat reduces the area within the vessels designated for blood flow thereby forcing the blood to flow at high pressures. Consequently, the heart is overworked and heart related diseases such as heart attack and high blood pressure is inevitable. It is also worthy to note that pig meat contains a large quantity of growth hormones, antibodies as well as other compounds. Unlike other animals and human beings, pigs are known to produce higher levels of antibodies and growth hormones due to their unique biological structure. These hormones pass to the animals muscles and other tissues due to normal biological processes in the body. They therefore become threats to the human health when consumed in the pork. For instance, some growth hormones have been cited to promote inflammation of the human body when consumed (Nollet and Boylston, 170). Besides, pork is poised to contain excessive amounts of compounds such as imidazole as well as histamine which are also responsible for body irritation and inflammations. Other compounds such as sulphur are also contained in the pig meat. This compound usually found in the mesenchymal mucus of the animal and often associated with body swellings. Moreover, the deposits of such mucus on the carti lages and tendons may result into diseases including rheumatism as well as arthritis. Generally, the significant quantities of hormones, antibodies, lipids as well as cholesterol in the pig meat are poised to have serious threat to human health. The pigs poisonous nature is reflected in a variety of scenario. At the outset, pigs bodies are composed of toxins in addition to other diseases. Their fat and meat absorbs toxins through normal biological process. However, they are not in a position to get rid of the toxins easily out of their body. Biologically speaking, pigs neither sweat nor perspire unlike other mammals hence unable to eliminate toxins from their bodies (Nollet and Boylston, 170). It is through the process of perspiration and sweating that such poisonous substances are removed. Moreover, the poisonous nature of the aforementioned animal is affirmed by the inability of poisons such as strychnine to kill the animal. Besides, the animal is hardly killed by other poisons such as the snake venom. The pig meat is therefore cited as containing high percentage of toxins that can be harmful to the health of human beings upon consumption. Consumption of pig meat is also prohibited by the teachings of Islam religion. According to the religion, Allah has only forbidden people of carrion, pork as well as blood and what has been consecrated to other than Him (Winzeler, 2008, 75). However, the holy book of Quran provides that anyone forced to consume pork without his desire or going to excess in it has committed no crime before the Allah. Allah is ever-forgiving, most merciful (Quran, 2: 173). The holy book of Quran has also elaborated in not less than four instances, why Allah prohibits the consumption of pork. These provisions are contained in different places in the Quran including 6:145, 16:115, and 5:3 among other verses. Quran revealed such warnings on the possible harm of consuming pork as well as the other aforementioned food products almost fourteen centuries ago. However, people still eat pork despite the religious teachings, the physiological incompatibility of the food product with human body as well as harm ca used by consumption of pork. Pork is also forbidden in some books in the bible even though Christians are unaware of the teachings. For instance, the books of Leviticus and Deuteronomy prohibit the consumption of pork by human beings (Winzeler, 2008, 75). The bible says: And the swine, because it divides the hoof, yet does not chew the cud, it is unclean unto you: you shall not eat of their flesh, nor touch their dead carcass. Leviticus 11:7, 8; Deuteronomy 14:8. Individuals are sometimes motivated by their stomach and not scripture to claim that Christ abolished the rule prohibiting the consumption of pork. On the other hand, pig meat has beneficial aspects despite the world clamor to avoid consumption of the food product. It is currently the most consumed meat product in the world with less consumption rate in Muslim as well as Jewish strongholds (Nollet and Boylston, 170). First and foremost, pig meat is believed to contain a high degree of nutritional value. Pork is cited as containing high quality protein as well as low in natural salt content. Moreover, pork contains other vital nutrients required by the body including vitamins and minerals such as Zinc, Iron, phosphorus as well as selenium. The aforementioned nutrients present in the pork makes the meat product suitable for human health and wellbeing as well as being necessary for the healthy growth and development of the children. It is noteworthy that pig meat has varying fat contents in different body parts. The leanest parts contain more unsaturated than saturated fats. The pig meat producers are currently in a position to pro duce pork that is leaner due to the advancement in technology which makes it possible for the combination of genetics and other production techniques. Such pork contains small quantities of the heart protective n3 fatty acids that are required by the body. Currently, pig meat is produced in a manner that yields both fewer calories and less fat content. It is estimated that pigs yield pork loin with slightly above fifty two percent fewer calories as well as about seventy six percent less fat content. The advances in technology have also eliminated fears of various diseases such as trichinosis as the trichina worm can now be killed at temperatures of 137 degrees F. This is achievable through proper cooking of the meat product at recommended temperatures of one hundred and thirty six degrees F. Pigs may be seen as dirty animals due to the fact they trot and lie on mud as well as feed on dirty foodstuffs such as insects, garbage and rotten flesh. However, it is important to note that as mentioned above, pigs lack sweat glands and can not therefore sweat or perspire. Consequently, they lie on such wet grounds or on water to cool their body off. Besides, individuals should not cite religion as a reason for not consuming pork because irrespective of the religion, meat products just like pork are poisonous when poorly cooked or undercooked. Generally, pork is unclean for the human body and therefore should not be consumed. To begin with, pig meat is associated with a lot of illnesses emanating from the filthy environment and the dirty foodstuffs that the animal feeds on. Pigs also harbor such parasitic worms as taenia solium which may cause serious problems to human especially if they invade delicate organs such as brain and heart upon gaining entry into the body through consumption of pork. Other illnesses originate from the effects of consuming the animals flesh such as obesity and heart thrombosis which precipitated by the high cholesterol and saturated fat levels in pork. In a nutshell, pigs bodies contain a lot of poison, underlying diseases as well as worms. Pigs are also detested on religious grounds where both the Islam and Christian laws prohibit the consumption of pork on the basis of unhygienic nature of the animal and its meat for human consumption (Winzeler, 2008, 75). According to White (1998, 14) pig meat still remains the cause of intense human suffering in the world. Conclusion Despite its deliciousness as well as high nutritional value, pork continues to be detested by many people. The consumption of pig meat has raised hygiene as well as health concerns among those using the food product. Firstly, pig is associated with filth as it plays, sleeps and eats on mud and garbage thereby predisposing the animal to infections from worms compared to other animals. Illnesses such as Influenza emanate from such environments and are easily transmitted to human beings upon consumption of affected pork. Besides, pork is characterized by high cholesterol as well as fat content which are associated with several diseases and disorders in the human body. For instance, high saturated fat content and cholesterol levels are responsible for the onset of heart-related diseases including heart attack and high blood pressure. The fats coalesce on the inner walls of blood vessels thereby restricting blood flow hence high blood pressure results. This subjects the heart to strenuous work thereby predisposing it to heart attack. Pork is also detested on grounds of religious laws. Both the Christian and Islam teachings are against the consumption of pork for its unclean nature (Winzeler, 2008, 75). This is stipulated in Quran 2: 173 as well as in the bible in the books of Leviticus 11: 7, 8 and Deuteronomy 14: 8. However, pork still remains the most consumed meat product in the world given its delicious nature as well as high nutritional value. Pork has several vitamins and high quality proteins. Work cited: Mead, Paul et al .Food-Related Illness and Death in the United States. EID journal. Atlanta: Centers for disease Control and Prevention. 2010. Print. Retrieved on 18th Nov, 2010 at: http://www.cdc.gov/ncidod/eid/vol5no5/mead.htm Nollet, Leo Boylston, Terri. Handbook of meat, poultry and seafood quality. London: Wiley-Blackwell. 2007. Print. Russel, Rex. What the Bible Says About Healthy Living: Three Biblical Principles that Will Change Your Diet and Improve Your Health. Gospel Light. 2006. Print. White, Hellen. Disease and Its Causes. Washington: Health Research Books. 1998. Print. Winzeler, Robert. Anthropology and religion: what we know, think, and question. California: Rowman Altamira. 2008. Print.

Herbrandss Theorem :: essays research papers

Herbrand’s Theorem Automated theorem proving has two goals: (1) to prove theorems and (2) to do it automatically. Fully automated theorem provers for first-order logic have been developed, starting in the 1960’s, but as theorems get more complicated, the time that theorem provers spend tends to grow exponentially. As a result, no really interesting theorems of mathematics can be proved this way- the human life span is not long enough. Therefore a major problem is to prove interesting theorems and the solution is to give the theorem provers heuristics, rules of thumb for knowledge and wisdom. Some heuristics are fairly general, for example, in a proof that is about t break into several cases do as much as possible that will be of broad applicability before the division into cases occurs. But many heuristics are area-specific; for instance, heuristics appropriate for plane geometry will probably not be appropriate for group theory. The development of good heuristics is a major area of research and requires much experience and insight. Brief History In 1930 Kurt Godel and Jaques Herbrand proved the first version of what is now the completeness of predicate calculus. Godel and Herbrand both demonstrated that the proof machinery of the predicate calculus can provide a formal proof for every logically true proposition, while also giving a constructive method for finding the proof, given the proposition. In 1936 Alonzo Church and Alain Turing independently discovered a fundamental negative property of the predicate calculus. â€Å"Until then, there had been an intense search for a positive solution to what was called the decision problem – which was to create an algorithm for the predicate calculus which would correctly determine, for any formal sentence B and any set A of formal sentences, whether or not B is a logical consequence of A. Church and Turing found that despite the existence of the proof procedure, which correctly recognizes (by constructing the proof of B from A) all cases where B is in fact a logical consequence of A, there is not and cannot be an algorithm which can similarly correctly recognize all cases in which B is not a logical consequence of A. "It means that it is pointless to try to program a computer to answer 'yes' or 'no' correctly to every question of the form 'is this a logically true sentence ?'" Church and Turing proved that it was impossible to find a general decision to verify the inconsistency of a formula.

Electrons The Building Blocks Of Science Environmental Sciences Essay

Electrons have been the cardinal component to many mystifiers in life ; if it were non for several doctors and their parts to the finds of different belongingss of the negatron, the scientific disciplines ( chemical science, biological science, and natural philosophies ) would non be the same. The earliest recorded experience with electricity ( apart from buoy uping ) was with the ancient Greeks who noticed that gold attracted little objects when rubbed with pelt. The history of negatrons has been a compile of little finds made by many doctors, yet the most noteworthy finds were made by Benjamin Franklin, Eugen Goldstein, J.J. Thompson, Neils Bohr, Gilbert Lewis, Wolfgang Pauli, and Thomas Young. Benjamin Franklin work with electricity led him to coin footings and suggest several theories affecting batteries, music directors, capacitors, charges, and discharges. He came up with the thought of â€Å" positive † and â€Å" negative † electricity holding â€Å" plus † and â€Å" subtraction † charges. He falsely thought electric flow was from positive to negative ; now we know the opposite is true. Yet, the thought of positive and negative charges builds the foundations of circuits. Through Franklin, we learn that charge flows from the high electromotive force terminus of the power supply through carry oning wires to the resistances, where the energy of the charges is used to make work, or is dissipated as heat. The charge so flows back to the low electromotive force terminus of the power supply by more wires. Charges besides emit an electric field, utilizing a voltmeter to find the strength and way of these Fieldss by mapping the electric potency of the field. From the possible field, the electric field can be determined. The electric field lines can be found by get downing at the positive electrode and following a way to the negative electrode so that the electric field lines ever cross the possible field lines at right angles. Cathode rays played a major portion of the find of subatomic atoms and their behaviour. In 1876, Eugen GoldsteinA discovered that discharge tubings with a pierced cathode besides emit a freshness at the cathode terminal, which was subsequently recognized as negatrons traveling from the negatively-charged cathode toward the positively-chargedA anode. He besides concluded that there was another beam that travels in the opposite way. They are composed of positive ions whose individuality depends on the residuary gas inside the tubing, which subsequently became portion of the footing forA mass spectroscopy. With the cathode beam, he besides discovered magnetic Fieldss exert a â€Å" crabwise † force on traveling charged atoms. That is, if a charged atom travels through a magnetic field, the field will exercise a force directed at right angles to the atom ‘s gesture. Charged atoms can be made to go in a circle by puting up a magnetic field. In 1896, J.J. Thomson and his colleaguesA performed experiments bespeaking that cathode beams truly were atoms, alternatively of moving ridges, atoms or molecules that many believed before. Thomson made a reasonably accurate estimation of both the chargeA eA and the massA m, happening that cathode beam atoms had around a one thousandth of the mass of hydrogen.A The e/m device in his lab generates a seeable beam of negatrons and directs the beam through a unvarying magnetic field. When high-velocity negatrons strike the atoms in the gas, the atoms give off a green colored visible radiation. This makes the beam seeable. Most negatrons in the beam do n't clash with any atoms, since the gas is really thin. But those that do demo the way the negatrons are taking. Electric currents create magnetic Fieldss. At the centre of the spirals, the B-field is approximately unvarying and directed analogues with the land. This causes the negatrons to turn. The radius of the circle will depend on the strength of the magnetic field B, the velocity of the atom V, and the atom ‘s mass. The strength of the B-field depends on the current in the spirals. By mensurating the radius of the beam ‘s round way, he found the mass of the negatron. A unit of ammunition glass vacuity tubing with a glowing round beam inside The edifice block of chemical science and bonding was explored as Niels Bohr explained a simplified version of the atom, now named Bohr Atom. It is non right, but it provides a utile manner to visualise spectra and their creative activity. A â€Å" cloud † of negatrons in â€Å" orbits † surrounds the highly bantam karyon. Atoms are characterized by a karyon: the cardinal, bantam, monolithic portion. Its charge is impersonal or none. The karyon is made up of positively charged protons and impersonal neutrons. Electron: the negatively charged atom that orbits the karyon of an atom.Photon: the smallest possible sum of E & A ; M energy of a peculiar wavelength. An atom consists of a little, heavy karyon surrounded by negatrons.He hypothesized that negatrons were in quantal energy provinces. In the atom the negatrons are normally in the â€Å" land province † , n = 1. This is the lowest energy province of the atom. If an negatron is excited ( such as by an electric c urrent in a neon tubing ) it will absorb a specific photon and move to a higher energy orbits or â€Å" aroused provinces † .Because energy in an atom is â€Å" quantal † , the negatron can merely travel to specific energy provinces ; most energy provinces are out. Each set of orbits for every component and compound is different from every other set. When an negatron in an component in a low-pressure gas province absorbs a photon of visible radiation it becomes excited, and it moves to a higher electronic energy province. Then it will spontaneously fall back to the lowest energy province possible, breathing the exact same wavelength photon it absorbed. Because merely distinct energy provinces are allowed, merely a few photons will excite the negatrons. Disintegrating back to the lowest energy province produces merely a few photons. Three homocentric circles about a karyon, with an negatron traveling from the 2nd to the first circle and let go ofing a photon This is an emanation spectrum. Since the wavelength is precise, the exact energies of the orbits are known from: Tocopherol = hc/l. After its excited the negatron will drop to a lower energy province by breathing a photon of precisely the same wavelength it absorbed. When it does that we can see the photon as a specific coloured line in the spectrum. EMISSION SPECTRA is the easiest spectra to analyze in the lab, but it is seldom found in stars. Some interstellar clouds and active galaxies have emanation spectra. EVERY ELEMENT AND EVERY MOLECULE HAS A DIFFERENT SPECTRA! The spectra from an unknown sample can be used to find all the elements and molecules within the sample. When there are many elements, near together, the energy degrees of the person atoms are spread out into energy sets. This consequences in a uninterrupted spectrum. Yet, Bohr ‘s theoretical account failed to account for the comparative strengths of the spectral lines and it was unsuccessful in explicating the s pectra of more complex atoms. In 1924, Austrian physicistA Wolfgang PauliA observed that no more one negatron can busy the same quantum energy province. Therefore, the Pauli exclusion rule provinces that no two negatrons in an atom may busy the same energy province. Each negatron has an single â€Å" orbit † . These orbits are ruled by quantum mechanics. Chemical bonds between atoms were explained byA Gilbert Newton Lewis, who in 1916 proposed that aA covalent bondA between two atoms is maintained by a brace of negatrons shared between them.A Adhering between elements As with all atoms, negatrons can move as waves.It is impossible to detect both belongingss at the same clip in the same moving ridge. Einstein ‘s photoelectric experiment besides proved this dichotomy. Thomas Young ‘s dual slit experiment shows this wave-particle dichotomy, besides turn outing that visible radiation was a moving ridge. This experiment had profound deductions, finding most of 19th century natural philosophies and ensuing in several efforts to detect the quintessence, or the medium of light extension. Though the experiment is most noteworthy with visible radiation, the fact is that this kind of experiment can be performed with any type of moving ridge, such as H2O. Inactive Fieldss = imaging ( MRI, etc ) The history of negatrons has been a huge series of different doctors happening little spots of information about this unknown atom. If it were non for these finds of the belongingss of the negatron, we would non cognize how electric Fieldss work, the utilizations of a cathode beam, how elements bonded, the capablenesss of energy that come from atoms, and practical applications such as imaging. It would be good to research more on negatrons and be portion of the find as other doctors have done. Plants Cited Page Anderson, David L.A The Discovery of the Electron. New York: Arno, 1981. Buchwald, Jed Z. , and Andrew Warwick.A Histories of the Electron: the Birth of Microphysics. Cambridge, Mass. : Massachusetts institute of technology, 2001. Davis, Edward Arthur. , and Isobel J. Falconer.A J.J. Thomson and the Discovery of the Electron. London: Taylor & A ; Francis, 1997. McQuarrie, Donald A. , and John D. Simon.A Physical Chemistry: a Molecular Approach. Sausalito, Calif. : University Science, 1997. Parker, Barry R.A Albert Einstein ‘s Vision: Remarkable Discoveries That Shaped Modern Science. Amherst, N.Y. : Prometheus, 2004. Tipler, Paul Allen, and Gene Mosca.A Physics for Scientists and Engineers. 6th erectile dysfunction. New York, NY: W.H. Freeman, 2008. Weinberg, Steven.A The Discovery of Subatomic Particles. Cambridge, UK: Cambridge UP, 2003.

Chain Gear Limited. Objectives, Mission, Products Essay

Chain & Gear Limited is a new company that will provide high quality bicycle accessories. Chain & Gear Limited is scheduled to start operations on January, 2014. The company will provide four types of accessories that include saddle bags, Led Bicycle, Air pump light and iPhone bike mount. These products will help improve the performance and safety of bicycles Chain & Gear Limited will target small and medium sized companies, wholesalers, retailers and within the Northern part of Michigan including Detroit and surrounding areas as well as Southern Ontario. Our products will be positioned as high-end accessories. Currently there are no other companies selling these accessories in the Northern part of Michigan. The potential market for company’s product is promising. Currently there are over two million bicycles owners in Michigan. We are seeking  £ 1 million to be used in the production, packaging, marketing and overhead as well as for short term capital needs. The company plan on achieving direct sales of  £100,000 in the target market in the first year of operation. The company plan to market their products aggressively in order to realize high profits. However, the company has ceased selling ‘2i’ bike helmet. Objectives Sales of  £1,000,000 in June 2014 and  £1.5 million by December, 2014 Gross margin higher than 75% Mission                  Chain & Gear Limited offers reliable, high-quality products. The company must maintain financial balance, charging affordable prices to their customers. Company Summary                  Chain & Gear Limited is a new company that will be providing unique accessories such as saddle bag, iPhone bike mount, LED Bicycle Air Pump Lights and coffee cup holder. As a company grows it will focus improving its product to keep abreast with technology. It will also form alliances with other companies (Petrie, 2008: p12).  The total start-up expense which includes legal costs, stationery, logo design and related expenses comes to  £1 million.  £800,000 will be raised through your bank and the remaining  £200,000 will come from personal savings. Start-up assets that are required include  £50,000 in short-term assets like office furniture and  £150,000 in initial cash will be used to handle the first few months of operations since the sales and accounts receivables plays through the cash flow.. The firm’s offices are located on lower side of Ann Arbour, Michigan. Products                  Chain & Gear Limited offers high quality new products that will change the structure of bicycles and also improve iPhone bike mount: The iPhone Bike Mount for iPhone allows one to attach an iPhone to a handlebar of the bicycle such that one can use GPS or an appropriate app to track one’s position, speed or distance travelled while one is still riding. The iPhone Bike Mount is a weather proof case that has a welded touch-sensitive membrane that lets your iPhone be completely protected from effects of the weather and still be fully functional. The inside of the iPhone Bike mount case is lined with silicones that assist in shock resistance. The iPhone Bike Mount pivots so that you can use the iPhone in a portrait or in a landscape mode. It has a membrane protected openings for front and rear camera lenses that lets one take video or pictures while still riding. It also have a recess in a silicone liner that accepts charge cables which is suitable for stems and handlebars with a diameter of 36 mm (1.6†) or smaller.It has a case dimensions of 13.2 Ãâ€" 8 Ãâ€" 3 cm (5.8 Ãâ€" 3.2 Ãâ€" 0.7†), case weight of 90 g (3.0 oz.) and a bracket height of 1 cm (0.4†) (Weston,2011: p.27). Saddle bags                  Saddle bags carry tire inflation kits, tools, spare tubes, , keys, and the like. Saddle bags offer easy mounting, convenient access and an out-of-the-way position underneath your saddle. Saddle bags are sleek and small. They are ideal multiplicity of cycling styles such as a weekend warrior, hard-core commuter, touring expert, both on-road and off-road. They have features such as Rear Zipper Closure, Inner polyester pocket on the side, Safety light attachment, post attachment, Inner mesh pocket on lid, Stiffener along top and bottom of bag, Reflective elements on lid, three Adjustable side Velcro straps for saddle bags attachments and one Velcro rear strap for the seat. They are available in black and blue colour, Small, Medium and Large. Their measurement is (H x W x D): (S) 4.75†³ x 2†³ x 2.75†³, (M) 5.5†³ x 2†³ x 3†³, (L) 6†³ x 2.75†³ x 3.5†³, weight: (S) 1.05 oz., (M) 1.2 oz., (L) 1.4 oz. And fabrics: S70DL Polyamide siliconized / 210D Diamond Rip stop PU coated Polyamide (Weston, 2011: p.23). LED Bicycle Air Pump Lights                  LED Bicycle Air Pump Light installs air tap easily on the tire and flashes vibrant colours when one wheel around. It has an assortment of, Yellow, Red, Blue and Green, giving one’s roadside style a funky and bright edge. LED Bicycle Air Pump Lights functions by enhancing visibility and alertness of oncoming traffic that they are sharing the road (Petrie, 2008: p.26). Cup holders                  Cup holder enables the cyclist to snap onto handlebar. It is constructed out of two rings and a steel spring without screws and glue. Rings are of different sizes such that cyclists can flip a cup holder over depending on the size of the drink. It comes with little storage cube which fits inside the spring. Our cup holder hold two rings together in order to keep it neat and tidy when it is not being used. Cup holders are available in black, red, and white and green (Weston, 2011: p.36). Competition Comparison                  The competition comes in various forms. Most of our competitor is retailers. Our competitive advantage is that we can buy our products in bulk. This lowers cost such that we can afford to sell at low prices. We can afford to approach other companies and form alliances like amazon.com. The second competitor is Bicycle World. They are already established with good distribution channels. The advantage we enjoy over them is that Chain & Gear Limited sells to wholesalers, retailers and to the company will start with general corporate brochures to help establishing the positioning. This brochure will be part of start-up expenses. Chain & Gear Limited will at first be positioned as a company that offers cheap products. Our main strategy is to build strong loyalty from customers. We will promote our products as the most technologically advanced on the Pricing                  We will price our products in line with the other leading products. A pricing chart is shown below. To support these prices, i carried out a research to determine prices offered by other players. Research involved interviews and conversation. Product Unit Price iPhone bike mount:  £22 Saddle bags  £24 Cup holder  £10 LED Bicycle Air Pump Lights  £40 Promotion                  We will begin promoting our products through the following several avenues. These include Direct mail campaign, campaign for print advertising, Email web promotional campaigns. Company website will be developed to supplemental to these efforts.A direct mail campaign will start immediately with special time-limited pricing discounts for those who place order within one week after the date trading started. Distribution Product will initially be sold through direct sales force and on the company website. Our sales strategy that we employ is directed towards equipping the sales force with a lot of information to help them understand both the product and the market.Cloud computing accounting software is accounting software hosted on a remote server. It provides accounting and finance capabilities to firms in a fashion similar to a Software as a Service business model. Data sent to â€Å"the cloud,† is processed and returned to a user. All the application functions are performed on off-site and not on the user’s desktop.In cloud computing, users can remotely access software applications through the Internet or other networks through cloud application service provider. Cloud computing accounting software frees a business from having to incur the cost, install and maintain software on personal computers. It also permits employees working in a remote or branch office to access the same data and the same version of the software. In most cases, application providers charge based on usage as compared to site license fees that are associated with traditional accounting software deployments. Accounting data backup and disaster recovery is more often than not a part of one’s cloud computing accounting software account (Arias, 2011: p.35). Types of Cloud computingXero                  Xero gives features that are needed in a cloud accounting software. It connects to one’s bank and pulls in transactions on daily basis hence reduce manual data entry. It also does invoicing. They have the developer friendly API which allows third party developers to integrate apps into Xero One of the. It also has capabilities of bank reconciliation. Xero are plain smart. It will automatically match the transactions that are downloaded from one’s bank to transactions he or she created in Xero to help lessen the reconciliation process (Arias, 2011: p.36). It is generally considered as one of top accounting apps in Apple App Store. They target the mobile entrepreneur who is enabled to use their iPad for accounting purpose. Wave is a cloud accounting system that is for free. Wave connects with one’s bank such that one can categorize his or her transactions. It’s a fairly simple system to use. The learning curve is quite low. One can snap pictures of receipts and are uploaded into the receipts tab in Wave. Wave will then attempt to categorize and extract the key data needed.For a start up company Xero is recommended. This is because it can be downloaded easily using a smartphone. It also reported to learns on the go such that it attempt to predict your future transactions based on the past transactions (Arias, 2011: p.45). The management team for Chain & Gear Limited is a diverse group that has strong skills in marketing and sales, finance and operations. Our primary criteria for hiring these executive positions are based on extraordinary past achievement. Mr Chan brings 25 years of marketing and executive management expertise. Immediately prior to Chain & Gear Limited Mr Chan was CEO of ABC Corporation. He successfully reorganized the company, streamlining operations and improving profitability. He has held different management positions Mr Ricky has MBA from the San Jose State University. Jane Doeseski will join Chain & Gear Limited after ten years at EFG Software, Inc. She served recently as Senior Marketing Director and holds an MBA degree from Harvard University. Jon Smyth will join Chain & Gear Limited as Vice President of Finance. He worked. He worked in CDE Widgets, for 12 years, holding many executive finance management positions. Mr Smyth has a strong financial background and experience at both start-up and large corporations. He graduated from Berkley University with a degree in Accounting. The Financial PlanFinancial Needs Summary                  Investment funding needed for the capital expenses and operating expenses that are for the first year of operation. Computer/Electronic Equipment  £90,000 Office Furniture  £16,000 Marketing Materials/Promotions  £215,000 Office Lease for one year  £60,000 Utilities  £12,000 Inventory/Packaging Setup  £35,000 Salaries/benefits  £780,000 TOTAL Financing Needed: =SUM(ABOVE)  £1,208,000.00 Revenue Model                  Chain & Gear Limited revenue will be raised through product upgrades, sales, and annual renewals of the support contracts. Future ways for revenue include product training workshops and a bi-monthly magazine. In the first three months, financial statement is based on projections for sales for the first Phase. The second Phase will start in March of 2014; phase three in June of 2016 while the fourth phase will begin in September of 2014. The second assumption is that sales projected for year one are  £1.2 million. Commissions on sales are figured on 75% of total sales (Assuming that 30% of the sold units will come from the sales in the website as well as other direct response sales). Commission rate is 12%. Financial Statements are in the Appendices of the business plan. References Arias, T. (2011). The cloud computing applications handbook: everything you need to know about cloud computing applications. S.l.: Emereo Pty Limited. Petrie, K. (2008). Bicycles. Edina, Minn.: ABDO Pub.. Pinson, L. (2005). Anatomy of a business plan: a step-by-step guide to building a business and securing your company’s future (6th ed.). Chicago, IL: Dearborn Trade Pub.. Velte, A. T., Velte, T. J., & Elsenpeter, R. C. (2010). Cloud computing a practical approach. New York: McGraw-Hill. Weston, O. (2010). Bicycle accessories and repair supplies: bicycles, motorcycle accessories, motor accessories ([Nachdr. der Ausg.] Montreal ; Toronto ; Weston ; Winnipeg ; Vancouver, Canada Cycle and Motor Company Limited, 2010. ed.). Bremen: Europ. Hochsch.-Verl.. Young, P. (2008). Business plan. Chandni Chowk, Delhi: Global Media. Source document

marijuana and brain damage essays

marijuana and brain damage essays Though marijuana is illegal, it is the most widely used illicit drug in most developed societies today; over fifty percent of people will use it at some point in their lifetime (Hubbard, Franco, Onaivi 1999). Its peak usage occurred in the 1960s, but is still at a high today. To many peoples dislike, cannabis actually has legitimate medical purposes. Many anti-drug messages provide people with exaggerated claims concerning the undesirable affects of the drug. Moreover, its recent legalization in ten states, for medicinal purposes, has emphasized the need to understand and know the long-term effects on the central nervous system. Pope and Yurgelun-Todd(1996) conducted a blind comparison among college students of regular marijuana users versus infrequent users. Their goal was to determine whether frequent marijuana use can be associated with residual neuropsychological effects. Their findings suggested that although marijuana use may produce some effect in memory functions, that the more significant effects are in the attention-executive system. While the recall memory functions stay reasonably unaltered. Also reported by them is a show of impairments in mental flexibility, abstraction and in some aspects of learning, in frequent users more then less frequent users. Most of the cognitive damage is not big when compared to normal cognitive variability in normal individuals. These impairments would not cause a heavy smoker to stand out from the crowd. This does not mean that they dont have some sort of significance; theoretically speaking, they could still have detrimental effects on a students academic performance. Even though alcohol is legal and marijuana is illegal, Wayne Hall and Nadia Solowij(1998) have found that long-term heavy use of marijuana does not cause the harsh impairment of memory, attention, and cognitive function that can be found in chronic abuse of alcohol. But, the lon...