Causes of Sexual Dysfunctions Essay -- Biology Essays Research Papers

Causes of Sexual Dysfunctions "Sexual dysfunctions are an important public health concern, to which general health and emotional problems contribute" (10). What is a sexual dysfunction? A sexual dysfunction is any condition that inhibits someone's ability to enjoy sex. Some common sexual dysfunctions are: hypoactive desire disorder (low sex drive), hyperactive sexual disorder (high sex drive), sexual aversion disorder, lack of lubrication (females), impotence (male erectile disorder), premature ejaculation, vaginismus (prolonged contractions of the vaginal wall that cause painful intercourse), or failure to orgasm during sex (8). In a study of happily married couples, 14% of men and 15% of women reported that they were either not very satisfied or not at all satisfied with their sex lives. In another study by Laumann in 1992, it was found that the prevalence of sexual dysfunction is 43% in women and 31% in men (10). Are these numbers surprising? What is causing this lack of sexual fulfillment? Did you ever wonder why sexual desire varies from person to person? Or why and how your sexual drive can change over time? Did you ever wonder what causes things to go wrong sexually - sexual dysfunctions? What is controlling YOUR sexual desire? Innervations of the organs of sexuality are mediated primarily through the autonomic nervous system (12). The autonomic nervous system is the part of the vertebrate nervous system that regulates involuntary action, as of the intestines, heart, and glands, and that is divided into the sympathetic nervous system and the parasympathetic nervous system (1). It is generally assumed that the parasympathetic system activates the process of erection via impulses that pass through the pelvic splan... ... 4) HEAD INJURY AND SEXUALITY http://www.medlit.net/guests/Abstracts/Head-inj.htm 5)EMOTIONAL MEMORY AND THE AMYGDALA http://userwww.service.emory.edu/~shamann/amygdala.html 6)Kluver-Bucy Syndrome http://www-unix.oit.umass.edu/~gjdlab/Dar.html 7)Limbic System http://www.placidity.net/neuro/page/11sect/0.shtml 8)Sexual Dysfunction http://www.cogs.susx.ac.uk/users/andyf/teaching/clinical/sexdysfunction.pdf 9)Sex and states of consciousness http://www.innerworlds.50megs.com/sex_ascs.htm 10)Sexual Dysfunction Secondary to Depressive Disorders http://www.mmhc.com/jgsm/articles/JGSM9904/bartlik.html 11)What causes behavior? http://www.science.mcmaster.ca/Psychology/psych2f03/lecture11.doc 12)Sexual Dysfunction Following Injury:Time for Enlightenment and Understanding http://www.neuroskills.com/index.html?main=tbi/sex-discussion.shtml

Ucla Econ 101 Final Spring 2011

1 Final Exam (VERSION 1): Econ 101 †¢ Please write your name at the top of every page of this mideterm †¢ Please write your name, TA’s name, and the time of your discussion section here Your Name: TA’s Name: Discussion Time: †¢ The exam has one parts: Written Questions. †¢ There should be 16 total pages (front and back). Quickly read through the exam before beginning. †¢ There are 100 total points available. Point values are listed next to each problem part. Please allocate your time accordingly 1 2 Written Questions 1. Consider the following payo? matrix Player L M T 2, 0 3, 1 Player 1 C 3, 4 1, 2 B 1, 3 0, 2 2 R 4,2 2,3 3,0 . (5pnts) Find the pure strategy Nash equilibria of the simultaneous game b. (5pnts) Now suppose the game is played sequentially. Find the subgame perfect equilibrium if player 1 goes ? rst and if player 2 goes ? rst. c. (5pnts) Discuss whether each of the players would want to go ? rst or second. d. (5pnts) Write down a sy stem of equations such that the solution to the system would give a completely mixed strategy equilibrium of this game (please clearly de? ne all of your notation). Can this system of equations be solved? (Hint: think about the condition requiring player 1 to play B with positive probability).Explain what the answer means. 2 WORK SPACE 3 WORK SPACE 4 2. Suppose Player 1 and Player 2 are playing a simultaneous move game with the following payo? matrix: Player 2 L R T 0, 4 ? , 3 Player 1 B 3, 3 4, 6 where ? ? 0 a. (5pnts) De? ne a dominant strategy equilibrium. Is there any value of ? for which there is a dominant strategy equilibrium. If so, ? nd the values of ?. If not, show why. b. (5pnts) Describe all the pure and mixed strategy equilibria of the game as a function of ? c. (5pnts) Suppose ? = 5. What would the outcome be if the players could cooperate? 5 WORK SPACE 6 WORK SPACE 7 3.Billy has just inherited a horse ranch from his uncle. The ranch is located in Oshkosh, WI and rents horses. A unique feature of the stable is the nearby riding trails that overlook Lake Winnebago. Billy has two types of potential customers: novice riders (N) and serious riders (S). The (per customer) demand for horse rides on the ranch is qS = 75 ? 1. 25PS , where qS is the number of hourlong rides a serious rider makes per year. The demand for novice riders is qN = 57 ? 1. 25PN . Assume there are 75 riders of each type in the town. Billy’s cost function is T C = 12q, where q is the total number of hours the horses are ridden per year. . (5pnts) Suppose Billy does not price discriminate. Find prices, quantities, and Billy’s pro? t. b. (5pnts) Suppose Billy can tell who’s a serious rider because of the types of hat they ware. Find the 3rd degree price discriminating prices, quantities and pro? ts. c. (5pnts) Suppose Billy is not able to tell the di? erence between the two types of rider. He decides to start charging a yearly membership fee, T , as well as an h ourly price, p. Find the optimal choices of T and p d. (5pnts) Suppose Billy IS able to tell the di? erence between the two types of but still thinks the 2-part tari? is a good idea.Find the annual fee and per hour price that Billy would charge to each group 8 WORK SPACE 9 WORK SPACE 10 4. (16pnts) Boeing and Airbus are the 2 ? rms that produce commercial aircraft. The demand for airplanes is given by: Q = 10 ? P . Boeing’s costs are given by T CB = cB qB and Airbus’ costs are given by: T CA = cA qA where cA , cB are constants. a. (5pnts) Find the Cournot quantities, prices and pro? ts. Find Stackelberg quantities, prices, and pro? ts assuming Boeing chooses output ? rst b. (5pnts) Suppose that right now cB = cA = 5. Boeing has access to a process innovation that will lower marginal costs from 5 to 0.How much would Boeing be willing to invest to implement the innovation. (Assume Cournot Competition from here on) c. (5pnts) Suppose that the innovation is such that Airbu s can (imperfectly) copy it, so if Boeing makes the investment Airbus’ costs fall to 2. How much is Boeing willing to pay now? d. (5pnts) If Airbus can perfectly copy the innovation, how much would Boeing be willing to pay? Why is Boeing willing to pay a positive amount? 11 WORK SPACE 12 WORK SPACE 13 5. There are two types of people in the world Sky Divers and Cat People. Both types have wealth W = 100 and utility functions U (W ) = ln(W ).Both types of people can have an accident that leads them to lose $50 of wealth. Sky Divers are riskier and have accidents 75% of the time, while Cat People have accidents only 25% of the time. The proportion of Sky Divers in the economy is pS and the proportion of Cat People is pC = 1 ? pS a. (5pnts) How much would each type be willing to pay for an insurance policy that fully reimbursed them in the event of an accident? b. (5pnts) Write down the equations that, if you solved them, would give the amount each type would be willing to pay f or insurance that covered half their losses? . (5pnts) What is the fair price of (full) insurance for each type (i. e. if an insurer knows which type he is dealing with)? What is the fair price if the insurer cannot distinguish the two types? d. (5pnts) Assume insurers cannot distinguish the two types and that insurance markets are competitive so prices are the fair prices. Describe prices and who is insured in equilibrium as a function of pS e. (5pnts) Discuss the meaning of adverse selection in the context of this example 14 WORK SPACE 15 WORK SPACE 16

Leading marines

Identify the author's mission (task and purpose) in writing this book. The author's purpose in writing this book was to explain the role of the ‘leader' in the Marine Corps. To accomplish this the author used examples of corps values, ethos, individual courage and unit spirit. 2. What part of the book was the most effective in accomplishing the author's mission? What part of the book was the least effective? The part of the book that I think is most effective at accomplishing the author's mission is chapter three: Challenges. Friction dominates war, it makes simple tasks hard'. The author touches on how friction affects us anywhere from the marine-air- ground task force down to the most forward fghting positions and how getting over the brick wall that is adversity is key to being able to lead marines. 3. What does the author assume to be true in order to accomplish his mission? Does the author validate these assumptions in the book? The author really shows the importance of th e lessons we learned in boot camp and OCS as the basis of what is needed to accomplish any mission.The author validates these assumptions as he goes back to what we learned in training as xamples of how we should carry ourselves as leaders and Marines. 4. The part of the book that is most relevant to what I / we do is: The part of the book that is most relevant to what â€Å"we do is chapter three. The author talks about Friction and overcoming challenges in everyday life such as physical challenge and the importance of being combat effective. This is relevant to me because I think physical fitness is key to anyone in the Marine Corps who wants to be a leader. . Identify the author's specific and implied conclusions. What I took as an implied conclusion was that there's a bigger purpose for veryone and you won't know what that purpose is unless you take risks to find that purpose. What part ot the book was the most ettective in accomplishing the author's The part of the book that i s most relevant to what l/we do is chapter three. The ground task torce down to the most torward tgnting positions and now getting over purpose. 1.Identify the author's mission (task and purpose) in writing this book. ground task force down to the most forward fighting positions and how getting over The part ot the book that is most relevant to what I / we do is: 6a. With respect to the author's conclusions (either specified or implied), I / we ccept or agree with the following: I agree with the implied conclusion that the fundamentals of leading marines is engraved in each of us as marines in boot camp or OCS and that those fundamentals are the basis of being a leader and a Marine. b. With respect to the author's conclusions (either specified or implied), I / we reject or do not agree with the following: There was nothing that I did not agree with. 7a. This book made a favorable impression on me and it will change the way I approach: This book will definitely make me think back to the basics when I am approached with adversity.