...Collabics01 Reading: "The risks of global worming" Economist 6/2/2012. Answer ALL questions. What type of good is at risk here? Is it clean air, clean water, or something else? Name this good and describe this good in terms of consumption rivalry and excludability. Searched for the article "Fished Out!" in livingeconomics for inspiration. (Max 500 words). The type of goods that are at risk here are the “effectiveness of the antibiotics”. This good is defined in the effectiveness of the antibiotics that falls between the two categories of nonrivalry and exclusiveness. Antibiotics are exclusive in that only medical professionals can govern or control the distribution of the drug, but it is not merely non-rivaled because consumption of antibiotics by one person can affect future consumption by others. This leads to an externality: the use of a resource or product by one person can affect others without their permission. In this case, the decision to provide antibiotics treatment to these animals can affect the future effectiveness and quality of the drug to the animals. Resource allocation of antibiotic effectiveness is comparable to the article Fished Out and the management of fishing stock and fisheries. A fisherman wanting to get the more than their share can overfish and diminish the future stock (or quantity) of fish for all other fishermen of the same fish stock. A fishery, like the effectiveness of antibiotic, is a common property resource. A common property...
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...Nosocomial Infections By princessbec76 | Studymode.com Section 1: Infections in Healthcare Settings Essay. Nosocomial infections, hospital acquired infections, are an on-going concern to healthcare professionals. These infections are one of the major causes of death in hospitalised patients and are a significant burden on not only the patient’s and the public’s health (as organisms causing nosocomial infections can be transmitted to the community through discharged patients, staff and visitors) but also the economy. A nosocomial infection is an infection acquired at least 72 hours after being admitted into hospital for any reason other than the infection or one which develops amongst hospital staff. Infections are also identified as nosocomial if they appear in a patient within 30 days after their discharge from hospital. Non nosocomial infections, community acquired infections, are infections acquired anywhere other than the hospital. The most common places where non nosocomial infections occur are schools, day care centres and sports facilities. They are spread through skin to skin contact, cuts and grazes, overcrowding and poor hygiene. The illnesses or infections can be the same, for example, pneumonia or gastroenteritis but it is the setting that they are contracted in which differentiate the two infections. Nosocomial infections occur worldwide and affect both wealthy, developed countries as well as the poorer ones with scarce resources. A survey conducted by the World...
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...qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmrtyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmrtyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmrtyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmrtyuiopasdfghjklzxcvbnmqwer...
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...For our project we decided to disassemble and understand a Memphis 1 Channel Mono Block Amplifier. First we started by disassembling the amp down to the main circuit board. From there we assigned ourselves different components to understand what they were and how they worked inside the amp. We all researched our components and got back together to discuss and figure out the flow of power and operations of the amp worked. A general idea of what the amp does is as follows. Power comes into the inputs from the positive side of the car battery. A negative source comes from the car’s chassis to the negative terminal. The remote wire comes in from the head unit or source of sound to the remote input. When the source turns on, power runs from the remote wire to a relay inside that allows power to run through. Power then runs to various capacitors to store up power before running to the inductor that converts the power to usable power for the MOSFETs. As the power runs through the circuit, it eventually comes to resistors which slow up the current flow. Sound comes in through the inputs and to the MOSFET amplifiers. Then sound goes to the sound dampeners to clean the sound waves up before going to the sound outputs. To better understand the amp and its components we will branch off and explain each of the components and what they do. When a relay receives power, power runs through a set of coils and creates a magnetic field that actuates an arm inside and closes the circuit...
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...efficiently into other forms of energy. In the 21st century, electrical energy production, distribution, and application have become consumer driven. Today’s consumer utilizes electrical energy in all aspects of life, from cell phones and computers to refrigeration and heating and cooling systems, and even transportation. Electrical energy, depending on geographic location, is converted from mechanical energy, chemical energy, light energy, and thermo energy before it reaches the consumer. Regardless of the conversion process, electrical energy consists of three basic components: current, voltage, and resistance. Current is the net transfer of electric charge per unit of time. Voltage is the amount of work required to move a charge from one point to another. Resistance is the opposition to the flow of current. Understanding the relationship between current, voltage, and resistance allows engineers to design efficient, safe, and functional electrical circuits. Electrical circuits consist of the following components: an energy source to provide voltage, conductors to allow current travel, insulators to limit current travel, and a load. Electrical circuits provide an uninterrupted path for current travel and are broken into two distinct categories of design: series circuits and parallel circuits. Equipment * Engineering notebook * Calculator * PC with Internet (http://phet.colorado.edu/en/simulation/circuit-construction-kit-dc) * Simulation courtesy of: ...
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...lines and is designed to produce the highest output at the lowest cost. Industrial farms use new technology which provides them with high mechanisation, speed in production and low labour requirements. The animals in industrial farms are kept usually indoors with extremely restricted mobility. Battery cages for laying hens and veal crates are just some of many examples of industrial farming. (Garces & Nierenberg, 2005) Zoonoses are any diseases that can be transmitted from animals to humans. Some examples of zoonoses are : Avian Flu, Nipah Virus.(Graces et. al.,2005) 2. What are the main concerns for human health arising from industrial agriculture? Firstly industrial framings produce large amounts of manure that pollutes water and air. This pollution may cause many human diseases for example ‘blue baby syndrome’ or E.Coli poisoning. Secondly, the animals in some industrial farms are fed with antibiotics to promote growth and prevent diseases. This was also proven to be a danger for humans as widespread use of antibiotics results in breading super pathogens (drug resistant bacteria).Besides antibiotics there are also other toxic substances which are used to feed the animals on these farms. These toxins may be contaminated in animal tissues and they create the risk for people who consume them. There are also indirect effects caused by these farms. As meat from industrial farms is reasonably cheap it is supplied to many fast food restaurants. As more and more restaurants of...
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...Corn Fed vs. Grass Fed Have you noticed how there’s an increasingly wider selection of types of beef to be purchased? Which option is healthier? Which one is least expensive? There has been an ongoing dispute over which choice of beef we should be consuming. While both may seem to have their own advantage and disadvantage; ranging from being cost-efficient, to more beneficial nutrients. Both contribute to the eco-system, but in completely different ways. While grass-fed beef is the healthier alternative, it can prove to be a bit pricey, nonetheless, grass-fed beef provide us with more nutrients; they’re higher in Omega-3 fatty acid and vitamin E. Corn-fed beef, on the other hand, is relatively more affordable. The million dollar question should be, it’s affordable, but at what cost? What makes corn-fed beef so much cheaper than grass-fed? Corn-fed cattle go through a process, almost like an assembly line. The first step, the cow and calf live in a cow-calf operation. Here, the cow is artificially inseminated for the sole purpose of reproduction. For the first 6 months, the calf stays with their mother, once they’re old enough they’re taken to a pen, where they’re introduced to corn. To make a long story short, the calf is finally moved into a CAFO (confined animal feeding operation). From this point on, they’re all confined to small caged in areas. These facilities house hundreds, even thousands of farm animals. From this point on their diet is strictly corn, protein, vitamins...
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...Available on line www.eijppr.com International Journal of Pharmaceutical and Phytopharmacological Research ISSN (Online) 2249 – 6084 ISSN (Print) 2250 – 1029 Int.J.Pharm.Phytopharmacol.Res. 2011, 1(3): 107-111 (Research Article) An Evaluation of Antibacterial Activity of Abelmoschus esculentus on Clinically Isolated Infectious Disease Causing Bacterial Pathogen from Hospital Yogesh Chaudhari*1, Dr. E. P. Kumar2, Manisha Badhe3, Hardik R. Mody1, Vamshikrishna B. Acharya1 1 3 Dr. L. H. Hiranandani College of Pharmacy, Ulhasnagar. India 2 Karapagam College of Pharmacy, Coimbatore, India Nandha College of Pharmacy,Kora Palyam Pirivu,Pitchandampalyam,Erode-638052 Received on: 21/11/2011 Accepted on: 17/12/2011 ABSTRACT Six different organic solvents such as n-butanol, petroleum ether, methanol, ethyl acetate and chloroform were used to extract the bioactive compounds from the fruits of Abelmoschus esculentus to screen the antibacterial activity against infectious disease causing bacterial pathogens such as Bacillus subtilis, Streptococcus pyogens, Klebsiella pneumoniae, Staphylococcus aureus, Escherichia coli, Proteus mirabillis and Pseudomonas aeruginosa by paper disc method. The butanolic extract of Abelmoschus esculentus was more active against almost 90% of the organism tested. It was followed by Ethyl acetate, Methanol, Petroleum ether, Chloroform in inhibiting the growth of organism tested. Key Words: Abelmoschus esculentus, Pathogens...
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...Biology Debate Paper BIO-L02 Proposition: Reducing the Use of Antibiotics Antibiotics are created using natural substances which bacteria secrete to kill other bacteria when forced to compete for limited nutrients. The first antibiotic, Penicillin, was discovered in the 1928 by Alexander Fleming and began being mass produced by the 1940’s. Within the same decade, resistant strains of bacteria began to appear. (1) Since then, 18 dangerous drug-resistant superbugs have been discovered (according to the CDC). A bacterium is referred to as a ‘superbug’ if it carries several resistant genes within its DNA. (2) Bacteria can become resistant to antibiotics primarily through two ways: by mutation or by horizontal gene transfer, in which bacteria share resistant genes with other bacteria essentially swapping out portions of their DNA for mutated sections. Antibiotics kill bacteria by binding to the cells protein so that the protein cannot function properly, hindering the bacteria from growing and reproducing. If the bacteria contains mutated portions of DNA, the antibiotic cannot bind to the altered protein and the bacteria won’t be affected. Due to natural selection, the bacteria that survived, the mutated bacteria, will be left to grow and reproduce and all that will remain will be the antibiotic resistant bacteria. (1) There continues to be an increase in antibiotic resistant bacteria due to a variety of reasons, mainly the over-prescription of antibiotics, the...
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...SAINTS should always be judged guilty until they are proved innocent, but the tests that have to be applied to them are not, of course, the same in all cases. In Gandhi's case the questions on feels inclined to ask are: to what extent was Gandhi moved by vanity - by the consciousness of himself as a humble, naked old man, sitting on a praying mat and shaking empires by sheer spiritual power - and to what extent did he compromise his own principles by entering politics, which of their nature are inseparable from coercion and fraud? To give a definite answer one would have to study Gandhi's acts and writings in immense detail, for his whole life was a sort of pilgrimage in which every act was significant. But this partial autobiography, which ends in the nineteen-twenties, is strong evidence in his favor, all the more because it covers what he would have called the unregenerate part of his life and reminds one that inside the saint, or near-saint, there was a very shrewd, able person who could, if he had chosen, have been a brilliant success as a lawyer, an administrator or perhaps even a businessman. At about the time when the autobiography first appeared I remember reading its opening chapters in the ill-printed pages of some Indian newspaper. They made a good impression on me, which Gandhi himself at that time did not. The things that one associated with him - home-spun cloth, "soul forces" and vegetarianism - were unappealing, and his medievalist program was obviously not viable...
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...the light bands in the forest areas. Therefore, these snails had to adapt to their own environment. 2. Overuse and misuse of antibiotics can cause resistant bacteria to form through natural selection. When you introduce selective pressure (antibiotics) to a bacterial infection, some of the bacteria can acquire “free” DNA from its environment. Which can mimic the antibiotics genetic make up. This causes some bacteria to create a resistant gene that can be passed to the next generation. As a result the genetically resistant bacteria keeps increasing in population. Not completing a course of antibiotics can also cause resistance bacteria to breed, by not killing off all of the bacteria in the infection. 3. The transition from aquatic to terrestrial life of vertebrae groups require four different major changes to occur. First, the sensory system (water vs air) had to change yo adapt...
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...Directional selection occurs when an extreme phenotype is favored and the distribution curve shifts in that direction. An example of directional selection is the resistance to antibiotics and insecticide. Disruptive selection is two or more extreme phenotypes are favored over any intermediate phenotype. An example of this is British snails that are found in low vegetation area and forests. In low vegetation areas thrushes feed mainly on a snail with dark shells with no light bands. In the forests they feed on snails with light band shells. These two different phenotypes each adapted to its environment. They are similar because they both lead to the evolution of a species to have certain traits. When given antibiotics some bacteria may be able to survive. Therefore the ones that survive can withstand the effects of the antibiotics. So if they are able to reproduce inside the person’s body (if a patient stops taking antibiotic early), then the next generation is better suited to deal with the antibiotics. If the drug is used more and more will survive. Tooth reduction is one major evolutionary trend that occurred among major vertebrate groups that allowed for the transition from aquatic to terrestrial life. The evolution of limbs and being able to breathe air are other trends to take place. Gymnosperm and angiosperm make up pollen. Sperm are confined within a pollen grind. Wind and animals can carry pollen to other plants to fertilize them. One example of this is when bees go...
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...Open Journal of Social Sciences, 2015, 3, 162-170 Published Online March 2015 in SciRes. http://www.scirp.org/journal/jss http://dx.doi.org/10.4236/jss.2015.33025 Cytotoxicity and Antimicrobial Property of the Leaf Extract of Euphorbia hirta (Tawa-Tawa) Lorna T. Enerva1,2, Theresita V. Atienza1,3, Zenaida R. Glifonea1, Ofelia B. Villamor1, Normita A. Villa2,3 1 College of Science, Polytechnic University of the Philippines, Manila, Philippines Taguig City University, Taguig, Philippines 3 Graduate School, Polytechnic University of the Philippines, Manila, Philippines Email: bettyenerva@yahoo.com 2 Received 23 December 2014; accepted 15 March 2015; published 18 March 2015 Copyright © 2015 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Abstract Tawa-tawa is usually abundant throughout the Philippines in waste places and open grasslands. The plant is an annual hairy herb, usually much-branched from the base. These branches are simple or forked, ascending or spreading up to 40 centimeters long and often reddish or purplish. The leaves are opposite, distichous, oblong-elliptic to oblong-lanceolate, 1 to 2.5 centimeters long, toothed at the margin, and usually botched with purple in the middle. The plant deserves special attention because of its medicinal properties. Local tradition credits that this plant can help...
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...selected against. Which means that the 2 “humps” shown in the distribution will be centered on the red and white phenotypes. 2. We have always had antibiotic resistant bacteria. It was produced even before humans because we have always had antibiotic. They we just not found out about until scientists discovered them. An example would be penicillin. This is produces from an antibiotic made by mold. It makes that antibiotic to kill bacteria that would complete for the material mold gets its nutrition from. This is why there is some penicillin resistant bacteria before human developed and discovered it. When exposing non-resistant bacteria to an antibiotic, most will die. However because of the mutations some of the bacteria may have a resistance to the antibiotic. Bacteria is all subjects to natural selection. Ones that do not have mutations that helps them to survive die. Ones that have mutations survive and pass the mutation on to the next generation. This same process occurs if the bacteria is exposed to a...
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...Superbugs are diseases that formed a resistance to antibacterial. They result from nature and human behavior. A mutation has been inevitable since scientist discovered the cure-all, antibacterial. Antibacterial has saved thousands of lives and has changed life quality. Citizens have taken antibacterial for granted the past few decades overusing and misusing them. Hospitals use lots of antibacterial, every corner there’s hand sanitizer. Physicians prescribed 27 million antibiotics in Canada alone in a year. Specialists prescribed antibiotics to kill a virus; which causes issues. A sudden change from the parent to offspring with different characteristics is a mutation. These microorganisms are acting on Darwin’s Theory of Evolution. His theory...
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