The Opposite Sex Essay Example for Free

The Opposite Sex EssayIn the modern era, males whitethorn become unfair in giving out comments to females for their actions, while women may also become bias in their judgment to men. Its funny sometimes how our judgment fails us. Our ability to see into things depreciates into lesser chunks of stupidity. We end up universe stubborn, just so we could be inconsistent. We blindly will our way to rash verdicts and absurdities. Now that things are little hazy, clarifications are expected more than anything else. Yet the close that could clarify this issue is the essay Opposite Sex by Seven Dorloff.The characters from the essay were students who were given the chance to write down their contracts if they were to alienate themselves from their own identity element and act as their oppositeness sex for one day. Various reactions came out. Some were excited about it, while others were pacified.The author entitled his students the chance to become their opposite sex. Likewise, he ga ve his class the option to make his/her wise preference as to what sex activity they most likely wanted to become after a one-day experience of becoming their opposite sex. The essay also showed a comparison of sex activity.But it does not suggest discrimination between the two because no one suffered clapperclaw why they were experiencing to become their opposite sex. He did not limit the options available to his students like someone who may prefer to have a assorted gender than his/her usual (Gumisai Mutume). He neither curtailed the democratic rights to write and to choose by decreasing the availability of the options. But the author did not intend to drastically transfer his students tastes.In the same way that a person with a different orientation must not be treated any different from person with other orientation just because we think theyre different. No matter how they stand out in their choice of orientation, in fashion sense and in whatever means of comparison sti ll they are not any different from us.True enough, having born as their gender, they will always be the gender they were initially. If they will defy their gender, they will run the risk of losing their identity because they will be ostracized and casted away from their community. They enjoy a degree of freedom in their gender adherence but they cant completely detach and get away from their original gender.Lets understand that being a different gender is another category its another quality that needs separate space. Its not being indifferent its being a manifestation of who you really are and who you wanted to become (Julie Mullins). Being a different gender however does not mean that the person you have been beforehand is unlikeable, its being enjoying what life can possibly offer. Since, the students were given the chance to become their opposite sex they took the opportunity despite the fact that they can lonesome(prenominal) become males / females through pen.Lastly, the aut hor was able to explain that no matter how different your gender is, you can still live in a existence without minding critics. If we dont mind our genders, that would do us more good. Its respect that we all need. Its respect that we claim generously, its respect we give grudgingly. regulate CitedMullins, Julie. Gender Discrimination. 2008. Children In Need, Inc. 15 September 2008 http//www.childreninneed.org/magazine/gender.htmlAnchor-Girls-35882 Gender Equality. 31 March 2008. Canadian International Development Agency. 15 September 2008 http//www.acdi-cida.gc.ca/CIDAWEB/acdicida.nsf/En/REN-218125542-Q37

Sexual orientation and the Environment Essay Example for Free

Sexual orientation and the Environment EssayPsychology in e very(prenominal)day life second edition is a majuscule book with lots of great information. But I find myself disagreeing with you on chapter four Environment and Sexual Orientation. I value that surroundal factors have a lot to do with sexual orientation. You asked four questions is homosexuality linked with problems in a electric shavers relationship with p arents, does homosexuality involve a fear or hatred of people of the other gender, is sexual origination linked with levels of sex horm geniuss, and as pincerren were many homosexuals victimized?I think that all of those things including your environment fanny be a decision making factor in your sexual orientation. Sexual orientation is an enduring sexual attraction towards members of either our own or other sex. I think your environment plays one of the biggest roles in your sexual ordination because your environment influences the thing that you do. As a chi ld youre very young and impressionable its just like monkey see, monkey do. Our parents affect our relationships because our parents are the first relationship we see and as a child everything we see our parents do we mimic.There for If we grow up around a same sex relationship and you are used to seeing that in your fooling situation that is what you are use to and you may feel like thats the way you want to live your life. So from what you saw as a child made you choose to be in a same sex relationship. I also think that the kind of relationships that you have with your parents also affects our sexuality. The relationship with your parents is one of the most influence relationships that you have in your life so it can very much have a positive or a minus effect on you.For example you growing up having a hopeless relationship with your dad may leave the impression that all men are dogs. That may cause you to drift away from the opposite sex. A male could have a horrible relation ship with his mother leaving a bad impression of woman causing him to have ell feelings towards women because he never experienced a good relationship with his mom. I think there are a lot of different factors in some one big attracted to the same sex. Also person being victimize as a child can cause them to be homosexual I dont think that is the cause for every on but I do think it contend a factor in some peoples lifestyle choice.Would that be the cause for everyone no not at all but it would be for some. Like genetical influences for example, shared sexual orientation is higher among identical twins than among fraternal twins. There are also brain differences for example gay mens hypothalamus reacts as do straight womens to the smell of sex-related hormones. Also the mothers immune system may play a role in the development of sexual orientation. Another interesting fact is that men who have older brothers are somewhat more likely to be gay well-nigh one third more likely for e ach additional older brother.Altered prenatal hormones exposure may lead to homosexuality in mankind and other animals. Also right handed men with several older biological brothers are more likely to be gay, possibly due to a maternal immune system reaction. Homosexuality does appear to run in families homosexual men have more homosexual relatives on their mothers side than on their fathers as you can see yes there are a lot of different things that can go into someone becoming gay. But my opinion that I think your environment plays the biggest role as it does for anyone else.Your environment shapes and moles you as a person. It might not be the deciding factor to what makes you gay, but I think it plays a big role. In the situation . So based on these findings I would have to disagree with you I very much do believe that your environment plays a huge role in your sexual orientation. I would like to think you for your time, and I think that chapter four has brought some very good i nsight and I have learned a lot. You made some very valet points thank you again for your insight.

Struggle For Human Rights And International Law Human Rights Essay

Struggle For Human Rights And International Law Human Rights EssayIn this essay, I seek to propose a deeper understanding about the constant struggle for kind-hearted rights and multinational law, In first instant, I am going to clear a sm all told review about the meaning of sympathetic rights and internationalistic law, basing on general context, secondly, I will introduce us the capabilities approach of clementity rights in a frame subject field for understand the universal declaration of tender rights (UDHR) and finally, I am going to illustrate how the main elements affect the relationship mingled with countries in the international system.For start with the stopment of the essay, it is important to have full enjoyledge about the main topic that I am going to spud during the course of the history, I mean, the human rights and the international law. So, we cam say that the human rights are rights to which everyone human being is entitled simply for because he or she is a human being. These rights do not necessarily have to be linked to a legal system and must not be protected by law, because as everybody knows, there are some of them that exist do not matter how, equally, it is very relevant to note that when these rights are stipulated at bottom the legislation, the enforcing human rights is much easier.Also, receivable to the fact that most countries in the land agree that human rights are unsounded for living in a more harmonize international community, I mean, this is, shared by all people regardless of age, race, sex, religion, etc., so, if most of the people are agree with this, it tend to be classify as universal rights, and in order that these rights are taken into account in a global level, it was necessary the creation of a document in which is stipulated all the human rights, This document accepted as the foundation of international human rights law is the universal declaration of human rights passed by the United Nations (UN) i n 1948, and which is use until today deep down this document, there are include some of the rights that probably could be the most important ones in international terms these human rights are linked with the ideas of justice, see and equality. And as I said before, this rights are global, and as universal rights means that they are not necessarily conferred on anyone, but are simply implicit in(p) and due to all human beings. En plus, the thought of some countries are different with respect to the other, which may make different laws regarding these rights and some of them may not have any laws regarding them, some of the most frequent ones, are the right to life the right to freedom of religion, the right to education and work, etc, later, we will see that this fundamental rights in many parts of the world are too often violatedTo deepen understanding of the struggle for global justice, it is important to appreciate the model of international law, which is a complex process of a uthoritative and controlling decision operating across national and equivalent boundaries, at a minimum, to maintain world order. To this end, by way of an interpenetrating mix of command and enforcement structures some(prenominal) internal and external to states, this includes a variety of doctrines, principles and rules. We can said, that the field of international human rights has achieved the comprehensive and heroic global status of preferred world public policy. It supplies a framework for a world order of human dignityTo begin, I demand to pay off a clear explanation about the meaning of sex, because this is a very important issue when we want to talk about human rights, moreover, it is vital to target that gender Is not only associated with the women, it also is related with men, because, this concept must be understood as a social and cultural construction which is base on biological differences that probably can cause inequalities in the international system also, t he gender contributes to an important analysis about the real situation of human rights, because, in the case of human rights violation, the gender analysis, could protagonist us in order to know which are the action that the country have to apply.It is important to remember, that within the document there are included the rights of equal gender and the rights of non sex discrimination, so, the state have the obligation to protect in the same level both sexes.At this point I would like to make a lot of emphasis in the challenges that Colombia has with respect to the rights of womenOne of the biggest challenges is related with the promotion of true agriculture of human rights in Colombia. Because the equality between men and women, and the realization of greater efforts in implementation and effectiveness of the policy to allow women to achieve true gender equality and contribute to the creation of the culture human rights Also, the State must adopt measures to modify stereotypes a nd cultural patterns that cause discrimination against women, this will also help to achieve this purpose.The active role of civil society to complement efforts state is crucial, because as the recent Report of the spirited Commissioner recommends, the Government and the defenders of human rights have to develop and institutionalize a stable dialogue, both nationally and regionally, to achieve greater degree of understanding, and improve the promotion and protection of human rights throughout the country.Finally, I want to talk about the challenges of the state in relation to the internal armed conflict in Colombia. In this topic is important to remember the recommendation of the High Commissioner to the Government, to the illegal armed groups and civil society to no spare efforts to establish contacts dialogue and negotiation in order to resolve the armed conflict and achieving peaceableness ().Also, the High Commissioner added in its recommendation that dialogue and negotiations should take into account, from the beginning, the human rights and international humanitarian law.One of the most famous example of violation of human rights is unopen related with ghostlike customs, because the international law of human rights poses considerable challenges for religious traditions, here, I consider some of this challenges, particularly that raised by the idea of womans human rights.The international law of human rights has not been largely detached from religious world view, because a human rights law does not ignore religion as an aspect of peoples lives. International human rights law recognizes a right to freedom of religion and discrimination on the basis of religion is prohibited at international law. Historically, the UN general assembly adopted a declaration on the elimination of all forms of intolerances based on religion or whim, but the UN commission establish a special reporter on religion intolerance, but the engagement of human rights law and rel igion has been by and large at a adjectival level, concern with freedom of religion as an aspect of controversial, because some religious traditions cannot accept the idea of freedom to chose a religion. So, if human rights law has not tenanted explicitly with religious traditions what have religious tradition made of human rights? In one hand, human rights and religious are intimately, if ambivalently, related in that religions provide a transient perspective by revealing a dimension of human life over and above the social and political order. Religions set a limit to the power pretend to be the unitary source of all authority. The tension between the region and the state is obviously in almost all the cases.In the case of Catholic Church this lack of engagement on the international level did not mean lack of interest in human rights issues. In wake of Vatican II, the church endorsed many human rights notions the ideal of equality and human dignity is part of the catholic culture . Other think that is important, is that religious tradition are the idea of sanctity which supports humans rights, it also has been very active in the grassroots of human rights struggles in many parts of the world. Both leaderships from capital of Italy and the work of local churches have supported and guided human rights movement in central and Latin America.The relation of Islam to human rights is more complex. Islamic religious law, developed in the second and third centuries of Islam. It is not a formally enacted code, but a vast body of jurisprudence in which jurists holy scriptures of Islam. It is a body of religious and moral directives and principles. It affects the thinking and behavior of Muslims the worlds over and it is the foundation of the institutions and customs of most Muslim societies. Because of the deep significance of the Islamic society belief that t should take precedence over any other legal system. The basis of international human rights law, the idea that a person has rights by fairness of being human, is foreign to Islamic jurisprudence. Indeed, many Islamic precepts are based on distinctions between humans- Muslims and non-Muslims, men and women, for example the Islamic makes repudiation of Islam or, as we know from the salman Rushdie case, the expression of views contrary to Islam punishable by death. Recently, the Islamic world has made an attempt to come to grips with international human rights law. The declaration refers in its preamble to the require of the UN and the international bill of rights, but does not endorse those instruments acceptance of a right to be free from slavery and the right to change ones religion. Many of international human rights guarantees are weakened considerably in the Arab charter.While the Catholic Church and the Islamic can claim an engagement with international human rights issues on some issues, they have played a negative and problematic role in other human rights context. The issue that ha s most often provoked this reply is that of womans rights and it has fostered a striking and incongruous alliance between the 2 religions traditions. A coalition of the Islamic countries, the Holy See and some catholic countries has been most handsome at united nation conferenceThe catholic and the Islamic religious traditions strenuously opposed placing womens health, reproduction and sexuality within a human rights framework, because the UN conferences work on a consensus principle, the coalition resisted a definition of the notion of reproductive health to include sexual health, the purpose of which is the enhancement of life and personal relations, and not merely counseling and car related to reproduction and sexually transmitted disease

Making Effective Business Decisions Through Accounting

Making Effective Business Decisions Through AccountingThe process of identifying, measuring and communication economic information to permit informed judgments and conclusivenesss by users of the information.According to American Accounting Association Committee, 1966.This may be considered as a grave definition because of its focus on accounting as an help to decision making.Writing an essay on this topic brings an attention on how accounting helps private instructor in taking effective ancestry decision. It is very important for any organization to take good wrinkle decision as to grow business by minimal cost. So, In order to make good decision People and organization need useful information. There is where Accounting plays a severalize role. Accounting helps centering to determine whether a business is at a loss or a profit, how much company owe, and other such fiscal information. There are certain Accounting measures can helps managers in the mighty direction with effe ctive information. Accounting Information helps management make sound business decisions on a timely and effectively manner. executing Managements measuring tool, Balance Score is effective in taking business decision through its four perspectives (Financial perspective, Customer Perspective, Internal Perspective and Innovation Learning perspective)According to Armstrongs (2009, pg 10) Performance Management (Briscoe and Claus, 2008) It is the system through which organization flock work goals, determine exertion standards, assign and evaluate work, provide performance feedback, determine training and development needs and distribute rewards. So, the purpose of performance management is with the aim to improve performance. Overall its purpose is to make clear that how employees performance is related to performance of the business. Hence, Balance scorecard is used in this essay to learn the performance management in terms of helping managers taking business decisionThe balance s corecard (BSC) is a tool to measure the operational activities of small- and large companies and their association with each others in terms of strategies and vision. It focuses on organizational strategies and the creation of balance for perspectives (financial, customers, internal processes, and learning and growth), and manages and evaluates complex organizations. (Abdullah S. Al-Mudimigh, 2009, pg 347)The Balanced Scorecard concept has been successfully employed by many companies in recent years to better measure their financial results. According to wizard study, fully 40 per cent of opportunity 500 companies were using this system to evaluate performance at the end of 2000. Hence, it is being adopted by many companies across the world today sour across the nature of the industry, types of business, geographical and other barriers (Punniyamoorthy, R. Murali, 2008)BSC essentially is a means of focusing employees attention on desired behavior and desired results. By trust fi nancial and non-financial measures in a single report the BSC aims to provide the managers with effective and more relevant information about activities they are managing than is provided by financial measures alone.The BSC come on provides a clear prescription as to what companies should measure in order to balance the implications in all the functional areas, arising out of the strategic intent. (Punniyamoorthy, R. Murali, 2008)The strategic suffice of the company can be grouped under different perspectives, which will cover the entire action mechanism of the firm. Kaplan and Norton (1992) introduced four different perspectives through which the firms entire activity can be integrated. First is Financial perspective is about to succeed financially how should we appear to our shareholders? Timely and accurate financial data will unceasingly be a priority, and the managers will work necessarily to provide it. Typically financial goals have to do with profitability, growth and sh areholders value. In the 1980, a chemicals company became commit to score management quality program, in this case the different managers and operating personnel who now had found their monthly financial reports to be irrelevant, But one enterprising department manager saw things differently. He created a daily income severalizement. Each day, he estimated the value of the output from the production process using the estimated securities industry prices and subtracted the expenses of raw materials, energy, and capital consumed in the production process. To approximate the cost of producing out of conformance product, he cut the revenues from off-spec output by 50% to 100%. So we can say that the daily financial report gave powerful feedback and managers to take decision.The customer perspective represents a significant area of concern for managers in the hotel area and indicates a need for performance measures which can adequately reflect such important customer oriented factor s as the quality of work provided and the increasing incidence of non-financial competition between hotel companies. For example, A semi-conductor company asked each major customer to rank the company against comparable suppliers on efforts to improve quality, delivery time, and price performance when the manufactures discovered that it ranked in the middle, managers made improvement that moved the company to the top of customers rankings. (Kaplan and Norton, HBR, 1992). Customer satisfaction is the most important prognosis of an organization it is related to the service and the value of the product. The customer must get its worth for buying and getting services, therefore through the financial report of total revenues indicates the product state in the market, this is the way that managers get the current market information and helps their company by taking right steps at right time.Innovation and learning perspective ,If hotel organizations are to be successful and, it is to b e hoped, remain successful they must continually make improvements both to their existing services and to their operations and processes, as well as developing and introducing new ones. It is only by this continual process of improvement and innovation that companies can grow. As the Rockwaterw was plagued by long closeout cycles at the end of many of its construction projects. Some customers delayed their final payment by the more that 100days, leading to high accounts receivable and broken in return on capital employes. Rockwater executives specified, as the result customer were delaying in payment. So Rockwater identified, as an entirely new internal process, that project managers should continually be communicating with the customer about the progress and expected completion of the project, and asking the customer for prompt payment. Balance scores financial perspective in any case focus on Internal perspective its also helps in deciding which operations, processes, compete nces and skills their organizations must excel at if customer demands are to be met adequately. Moreover, it is essential that such internal measures relate to those areas which are most likely to have the greatest impact on customer satisfaction. For example, a major office products manufacture, wanting to respond rapidly to changes in the marketplace, set out to reduce cycle time by 50%. Lower levels of the organization aimed to radically cut the times required to process customer orders, order and receive material from suppliers, move materials and products between plants, produce and assemble products, and products to customers.Thus, In the conclusion the evidence presented in the essay state that Balance score card result into very important business decision making tool through its four perspectives. It gives accurate finding and on which managers are able to find effective ways to implement the new ideas by taking better business decision.ReferencesAbdullah S. Al-Mudimigh, 2 009 pg 347, CRM score card-Based management system Performance evaluation of Saudi Arabian Bank, 2009, Macmillan Publishers Ltd. 1743-6540 Journal of Digital Assets Management Vol. 5, 6, 347-351, EBSCO databaseMichel Armstrongs, 2009 4th ed., Handbook of Performance Management evidence Based guide to delivering high performance, Kogan rascal Limited.M. Punniyamoorthy, R. Murali, (2008), Benchmarking An International Journal, Vol. 15 Iss 4, pp.420 443, Emertald DatabaseMeena Chavan, 2009, Journal of Management Development, Vol. 28 Iss 5, pp.393 406, , Emerald DatabaseRobert s. Kaplan and David Norton, The Balance score card Measures that Drive performance, Harvard Business Review, January February 1992 http//www.slideshare.net/gangappalogged/harvard-the-balanced-scorecard-measures-that-drive-performance-foundredsamaracomGary Porter, Curtis Norton, 7th Edition, Financial Accounting The Impact on Decision Makers, CengageBrain.com, According to American Accounting Association Commit tee,1966Robert S. Kaplan and David P. Norton, The Balanced Scorecard Harvard Business school press Boston, Massachusetts. HandbookAssessment Criteria Essay/Report

Qualitative aspect of drug action

Qualitative fount of medicine manageion Qualitative aspect of drug action Schild plotSchild plot Schild plot is delimitate as pharmacological method of sense electronic organ classification. By using schild plot battery-acid-effect curve for an champion is determined in the presence of various niggardnesss of a militant opposition for its sensory sense organ in the presence of agonist i.e. equilibrium dissociation eonian is calculated. The try out is carried out for series of dose ratios for a given effect. For example the ratio of the dose of agonist (A) to produce a specific effect (e.g.,half maximal effect) in the presence of the antagonist (B) to the dose required in the absence of the antagonist (A) is calculated. This is determined for several doses of antagonist and thus log ((A/A) -1) versus the negative log B is plotted. If the regression of log ((A/A) -1) on -log B is linear with a slope of -1, then this indicates that the aggression is competitive and by defi nition the agonist and antagonist act at the same recognition sites. If the slope of the regression is not -1, then by definition the antagonist is not competitive or some different condition is in effect. This might include multiple booking sites or pharmacokinetic interactions.Agonist Agonist is a drug which has both affinity and efficacy. competitor Antagonist is a drug which has affinity and zero efficacy.AffinityAffinity is a property of a drug it footf whollys how tight a drug binds to a receptor. To bind to a receptor a functional group of the drug should bind to the complementary receptor. The backrest capacity of the drug defines the action of the drug.Efficacy Efficacy of a drug can be defined as ability of drug which activates the receptor to produce desired effect after binding.Affinity and efficacy be explained in the equation as K+1 A + R AR* Response K-1 K+1B + R BR No Response K-1Where A is agonist, B is antagonist, K+1 is association rate constant quantity for binding, K-1is dissociation rate constant for binding- Association rate constant for activation- Dissociation rate constant for activationBy using law of mess hall action affinity is explained asB + R BRDrug publish receptor drug-receptor complexAt equilibrium KB = R B KB = Equilibrium dissociation constant BRHill-Langmuir equation this equation explains drug occupancyRT = R + BRIf RT = Total number of receptors then by substituting this in law of mass action equationRB = BRT KB + BBy this equation it is determined that drug occupancy (affinity) depends on drug denseness and equilibrium dissociation constant.Equilibrium dissosciation constant EQUILIBRIUM DISSOCIATION CONSTANT (Kd) It is the characteristic property of the drug and the receptors. It is defined as the preoccupation of the drug required to occupy 50 % of the receptors. The juicyer the affinity of the drug for the receptors lower is the Kd time value. Mathematically Kd is k2/k1 where k2 is the rate of dissociatio n of the drug from the receptor and k1 is the rate of association of the drug for the receptor.Receptor (R) and Drug (D) interact in a reversible manner to form a drug-receptor (RD) complex.Where R = Receptor D = Drug (L for ligand is some cartridge clips use in these equations) k1 = the association rate constant and has the units of M-1min-1 k2 = the dissociation rate constant and has the units of min-1. k2 is some condemnations written as k-1.If an agonist binds to the receptor, then the interaction of the agonist (D) and the receptor (R) results in a conformational change in the receptor leading to a solution.If an antagonist binds to the receptor, then the interaction of antagonist (D) and receptor (R) does not result in the appropriate conformation change in the receptor and a solution does not occur.For drugs that follow the law of unanalyzable mass action the rate of formation of the complex can be defined by the following equationdRD/dt refers to the change in the concent ration of RD with time (t). annotating the square brackets refer to concentration.This equation indicates that the rate at which the drug receptor complex (RD) is formed is proportional to the concentration of both free receptor (R) and free drug (D). The proportionality constant is k1.The rate of dissociation can be defined by the following equation-dRD/dt is the decrease in drug-receptor complex with timeThis equation indicates that the rate at which the drug-receptor complex (RD) dissociates back to free drug and free receptor is proportional to the concentration of the drug receptor complex. The proportionality constant is k2.When the drug and the receptor are initially mixed together, the amount of drug-receptor complex formed leave exceed the dissociation of the drug-receptor complex. If the reaction is allowed to go for a bulky enough, the amount of drug-receptor complex formed per unit time will be equal to the number of dissociations of drug-receptor complex per unit of time, and the system will be at equilibrium. That is equilibrium has occurred. Equilibrium can be defined asor k1RD = k2RDThis equation can be rearranged to giveKd is the dissociation equilibrium constant. Kd has units of concentration as shown in the following equation.Simple competitive abhorrence simple competitive antagonism is the most important type of the antagonism. In this type of antagonism the antagonist will compete with available agonist for same receptor site. Sufficient antagonist will displace agonist resulting in lower frequency of receptor activation. Presence of antagonist shifts agonist log dose solution curve to right. A schild plot for a competitive antagonist will have a slope equal to 1 and the X-intercept and Y-intercept will each equal thedissociation constantof the antagonist.This can be explained in equation asOccupancy for agonistRA = A OR A/ KART KA+ A A/ KA +1In presence of competitive antagonist (B)RA = A/ KART A/ KA + B/ KB + 1Occupancy reduced acc ording to B and KBTo obtain same occupancy, must increase A to Ar = A / A = B / BSchild equationr = B / KB +1Where r depends on B and KBApplying log on both sideslog (r-1) = logB log KBAim The master(prenominal) aim of the experiment is to measure the equilibrium dissociation constant (KB) for atropine at acetylcholine muscuranic receptors and to determine the drug receptor interactions.ObjectivesThe main objectives of the experiment are as follows To measure the equilibrium dissociation constant for atropine at acetylcholine muscuranic receptors To demonstrate the reversible competitive antagonism of atropine at acetylcholine muscuranic receptors To determine the equilibrium dissociation constant (KB) for atropine at acetylcholine muscuranic receptors by using schild plot.MethodIsolation and mounting of Guinea-pig ileum in organ bathGuinea-pig was first sacrificed and then the ileum was collected and transferred into physiological salt solution maintained at 370C. The food partic les boon in the ileum was expelled out through running Krebs solution through the lumen. Then tissue was laced with a thread at both the ends where wiz was tied to the mounting hook and the other was attached to the transducer.1) Preparation of serial dilutions of drugThe drugs used in the experiment were acetylcholine (Ach) and atropine. To determine the simple competitive antagonism of atropine at Ach muscuranic receptors serial dilutions of Ach were carried out. Ach was given as 110-2M and from the above concentration of the drug the following concentrations were prepared to the organ bath concentration such as 110-6M, 310-6M, 110-7M, 310-7M, 110-8M, 310-8M, 110-9M and 310-9M Ach. Then atropine was cut to 110-8M (organ bath) from the given 110-2M concentration.2) Determination of Organ bath concentrationThe volume of physiological salt solution (pss) was 20 ml, and each time the volume of drug introduced into organ bath was 20l.Therefore if 20l of 110-2M drug was introduced i nto the organ bath then it gives 110-5M organ bath concentration.Mathematical calculation of organ bath concentrationIn organ bath we have 20ml of pss which is equal to 20103 l of pss, if 20 l of 110-2 M Ach was introduced then the organ bath concentration 20lXM 20ml10-2M = 20 l x 10-2 M 20x 103 l = 110-5M (organ bath concentration).The isolated guinea- pig ileum was mounted onto the organ bath and set up for recording isometric line tension of the tissue using chart software in a Mac book.Step-1Calibration of the experimental apparatus The chart 5 software was gradational and the sampling rate was adjusted to 10 samples per second with a maximum input voltage to 10 mV. The baseline was set to zero and then touch was started from the baseline zero then the force transducer was calibrated by placing 1 gram weight and after the calibration the trace produced was stopped for the moment to deepen the units of tension into grams by selecting the trace produced previously.Step-2Sensiti sation of forwardness To check the viability of the tissue a response of suitable height was obtained by adding a little high concentration of the drug. Here in the experiment an appreciable recording was noted at 110-7M Ach.Step-3The time cycle followed to construct a concentration- response curve was0 seconds to add the drug concentrations30 seconds to empty the organ bath and refill with fresh physiological salt solution180 seconds next drug concentration was added to the organ bath.Concentration Response CurveBy making use of the above drug concentrations a concentration response curve was constructed according to the provided time cycle.1) 20 l of 110-9M Ach was added into the organ bath at zero seconds at is allowed to dissent for 30 seconds, then after 30 seconds the organ bath was emptied and refilled with pss. Pss was allowed to stand for 180 seconds. During the wash period if the peak does not return to the base then it was washed twice or thrice to make sure that all the drug dissociates from the receptors before the next addition of the other drug concentration. Each concentration was repeated twice or thrice until the two consecutive responses were inform with the same peak height.2) By following the procedure and time cycle, the concentration response curve was constructed with different concentrations of acetyl choline such as 110-9M,310-9M, 110-8M, 310-8M, 110-7M, 310-7M,110-6M and 310-6M Ach (organ bath concentration).Step-4Equilibration of Acetylcholine receptors with acetylcholine afterward step-2 the preparation was washed several times until the peak returned to the base line. Then atropine (110-8M organ bath concentration) was added to the preparation and then set aside for 40 minutes to allow atropine to equilibrate with acetylcholine muscuranic receptors.Step-5Concentration response curve in the presence of atropineThe concentration response curve with acetylcholine was repeated again in the presence of atropine by following the time cycle and procedure, which was same as same step 2.Therefore in step 3 with each addition of acetylcholine concentration atropine was added simultaneously.Step-6Analysisi) The represent pad prism in the Mac book was used to plot concentration response curves in the absence and presence of atropine.Log concentration (acetylcholine) Vs response in gramsii) From the above plot EC 50 values of acetylcholine in the presence and absence of atropine were obtained. Then the distance between the two curves control and response for the atropine presence was denoted by r, where r was called as shift.iii) The shift was calculated mathematically asr= EC 50 of response in the presence of atropine EC 50 of Ach in the absence of atropineiv) From the value of the shift, schild plot was plotted as log concentration of atropine presence against log(r-1).v) From the schild plot the dissociation constant KB for atropine at acetylcholine muscuranic receptors was determined.ResultsAs explained above in the procedure serial dilutions of acetylcholine was added to the organ bath, where Ach has produced concentration dependent contractions of the guinea pig ileum as shown in the fig 1.As shown in 1 the serial dilutions of acetylcholine are added into the organ bath from 110-7M to 310-6M Ach. Here in the trace it was clearly shown that contractions produced by the acetylcholine have been increased with respect to the concentrations.In step-2 the preparation was washed and added with 110-8M atropine and set aside for 40 minutes to equilibrate the acetylcholine receptors.In the trace it is clearly shown that, the contractions produced by serial dilutions of Ach from 110-8M to 310-4M in the presence of 110-8M atropine.When Trace 1 and Trace 2 are compared it is evident that the contractions produced by Ach alone (trace 1) were greater than the contractions produced Ach in the presence of atropine (trace 2) which proves the simple competitive antagonism by atropine at muscuranic rece ptors.A graph is plotted to the log concentration response curve produced by Ach alone against Ach in the presence of atropine. (graph is attatched to the report)From the graph it is known that with the increase in the concentration of Ach, response have been increased when compared to Ach in the presence of atropine and also there is a shift towards right which shows the simple competitive antagonism produced by atropine.From the results produced by Ach alone against Ach in the presence of atropine the fractional difference which is called as shift can be obtained as followsMathematical Calculation shift r = EC50 of response after atropine (or) in the presence of atropine EC50 of control (or) Ach in the absence of atropine = 2.5110-6 = 8.36 3.0 x10-7r-1 =8.36 -1=7.36log(r-1)=log (7.36) =0.86Partial dissociation constant (PKB) or PA2 is measured to confirm the simple competitive antagonism, where pKB values play an important role in classifying receptors.Therefore PKB =log(r-1) -lo g atropine=0.86 -log (110-8)=0.86 (-8)=0.86+ 8=8.86From the above results log EC50 values for control (Ach alone) and Ach in the presence of atropine were given as 3.0e-007 and 2.51e-006 respectively.This shows the molar concentration of Ach which produces 50% of the maximal possible response is higher than the molar concentration response produced by Ach in the presence of atropine.If the antagonist is competitive, the dose ratio equals one plus the ratio of the concentration of antagonist divided by its Kd for the receptor. (The dissociation constant of the antagonist is sometimes called Kb and sometimes called Kd)MathType compareA simple rearrangement givesMathType EquationHere we have plotted a graph with log (antagonist) on the X-axis and log (dose ratio -1) on the Y-axis. If the antagonist has shown simple competitive antagonism then the slope should be 1.0, X-intercept and Y-intercept values should be both equal the Kd of the antagonist obtained.If the agonist and antagonis t are competitive, the Schild plot will have a slope of 1.0 and the X intercept will equal the logarithm of the Kd of the antagonist. If the X-axis of a Schild plot is plotted as log(molar), then minus one times the intercept is called the pA2 (p for logarithm, like pH A for antagonist 2 for the dose ratio when the concentration of antagonist equals the pA2). The pA2 (derived from functional experiments) will equal the Kd from binding experiments if antagonist and agonist compete for binding to a single class of receptor sites.From 5 and 6 it is evident that no concentrations of atropine have showed competitive antagonism perfectly. Therefore from the above results it is known that the concentrations of atropine has not shown simple competitive antagonism fairly.DiscussionReversible competitive antagonism The binding of drug to a receptor is fully reversible which produces a parallel shift of the dose response curve to the right in the presence of an antagonist.The mechanism of act ion of acetylcholine at muscuranic receptorsIn various gastrointestinal smooth muscles, acetylcholine and its derivatives produce contractions by activating muscuranic receptors. It is generally assumed that the M3 muscuranic receptor plays a key role in mediating this activity. The M3 receptor is coupled preferentially to Gq-type G proteins, resulting in the activation of phospholipase C (PLC) and the formation of ionositiol trisphosphate (IP3) and diacylglycerol (DAG) which are likely to participate in muscuranic receptor-mediated smooth muscle contractions. IP3 causes Ca2+ release from intracellular depot and can also mobilize Ca2+ secondarily through Ca2+-sensitive or store-dependent mechanisms. DAG, via activation of protein kinase C, phosphorylates various proteins and can directly activate non selective cationic channels.From the above results the value of shift obtained was 0.378 which denotes the simple competitive antagonism produced by the concentration of atropine used (110-8 M).From the value of shift the pKB value was calculated as 8.4.If atropine has shown simple competitive antagonism then the value of pKB should be equal to 1-X intercept.Therefore pKB=1-X intercept=1-(-8.86)=9.86We got value of pKB as 8.86.Therefore pKB is not equal to 1-X intercept.Therefore the concentration of atropine (110-8M organ bath concentration) used by our group has not shown simple competitive antagonism effectively. The literature value of pKB is given as approximately 9 and we have obtained the value of pKB as 8.86 which does not fit with literature value.Therefore from the above observations and results i can conclude that a little more high concentration of atropine may action to produce complete simple competitive antagonism by atropine at acetylcholine muscuranic receptors.

Aircraft Law: Liability :: essays research papers fc

Aircraft Law LiabilityThe problems regarding bloodlinecraft liability in the outside(a) realmprimarily relate to resolving issues of legal status of international descentlinepassengers and cargo. The issues are defined as follows sovereignty overairspace, the impact of aerospace craft on the environment, the role ofaerospace technology in the international system, weather modification, airsafety and international aviation relations. Remarkable growth and developmentin the range of air transport services and technology earned the sector adistinctive international character. The latter is the most outstanding featureof the industry which allowed " any part of the world to be reached within afew hours of every other and, in doing so brought about a revolution in worldtrade, in business contacts, and in methods of diplomacy." (1)     The principles of air law have been evolving at a rapid pace since thebeginning of the Twenty-first Century, however, they too remain inadequate tomeet the needs of contemporary society. Concern for this immense growth and theaccompanying implications produced the impetus to devise a means to ensureorderly and appropriate development. Thus, "The general policy of the worldcommunity in regard to emerging issues of air law demands the maintenance andpromotion of a balance between technological advance in aviation and thepreservation of a wholesome environment by providing adequate policies andprescriptions." (2)     The initial governing treaty passed in 1929 is known as the WarsawConvention. This is a multilateral treaty among nations that governsinternational air transportation. It was based on the idea that becauseaviation was in its infancy, there was a risk of destroying the carrier airlineif there was a major crash. Therefore, it limits the liability for carriers.Unfortunately, this treaty also finicky the liability for damages to injuredpersons. Because of the latter clause, the U.S. renounced its participation andproceeded to join the international aviation community in entering into theMontreal Agreement of 1965.The Montreal Agreement was a special contract authorized by the WarsawConvention which states that the parties can agree to engage in certainactivities only if there is a consensus. The correspondence also raised thelimitation of liability, instituted absolute liability for any accident, anddeveloped a criteria for recovery for which the injured party has to prove thatthe carrier was guilty of willful misconduct. This agreement only applies toflights that start, stop or end or those which connect with an itinerary thatstops, starts or ends in the United States. (3)A third and more comprehensive throng was the Convention onInternational Civil Aviation of 1944 also known as the Chicago Convention.

Singapore Essay example -- Singapore Politics, Government

How might the Singapore society differ were it not for these technologies would the society be more or less heavily correct? Lee recommends analysing politics and society by addressing how power struggles and relations were played out in the pre-Internet era, namely the maintenance of political control via public protrude (2005 74). Foucault defines political sympathiesality as the point of contact where the technologies of power interact with the governed. This spurs Lee to postulate that, in order to retain power in the Internet era, governments need to be actively involved in shaping the design as well as the societal, cultural and regulatory environment in which the Internet and other unexampled media technologies operate (2005 75). One example of how the Singapore government has used technology to instil greater trust, and reinstate wavering public confidence is its online tax-filing system. The e-Filing system has been described as one of most definitive e-government proje cts, introduced by the Inland Revenue Authority of Singapore (IRAS) as a trust-building mechanism (Tan et al., 2005 2). The e-filing system has been a conspicuous success for e-government. The success of the e-Filing system was unprecedented in terms of compliance, and succeeded in reversing negative public opinion at a phenomenal rate (Tan et al., 2005 2). Srivastava and Teo explored how the Singapore government utilised their citizen trust on the technology initiatives to promote and maintain trust for e-Government (2005 721). According to them, this was largely achieved by fostering measures to build institutional trust via transparence and soliciting of feedback from citizens. They attributed the huge success of Singapores e-government programmes... ...s, which keep track of the users digital footprints and activities. Physical surveillance, in the form of trawling the Internet and hacking computers is technically feasible but fiscally unfeasible. Such measure also compromise privacy and democracy. Conversely, employing legislation to regulate and/or control the Internet has a number of advantages in terms of the easiness of execution, the feasibility, and the transparency of the judicial processes (Johal, 2004 4). However, legislature is purposely vague and the language ambiguous, allowing for flexibility of interpretation in the event of new developments (Endeshaw, 1996 210). For example, the Internet Code of Practice that states that (p)rohibited temporal is material that is objectionable on the grounds of public interest, public morality, public order, public security, national harmony (in Johal, 2004 5).