...Assignments for Math 221, Discrete Structures J. Stanley Warford April 5, 2013 Assignment 1 1. 2. 3. 4. 5. Study Section 12.2. Do Exercises 12.4(b, e). Do Exercise 12.8. Math 221, Discrete Structures Do Exercise 12.9. In your induction case, you should start with (n + 1)2 and use the result from Exercise 12.8. Do Exercise 12.10. i is divisible by 3 means that i = 3k for some integer k. You may use the fact that the sum of two expressions, each one divisible by 3, is also divisible by 3. 1 Assignment 2 1. 2. 3. 4. Study Section 12.5. Do Exercise 12.5. Do Exercise 12.14. Math 221, Discrete Structures Prove (12.16.1). There are two base cases, one for n = 1 and one for n = 2. For the induction case, there are two inductive hypotheses–one with n − 1 and one with n. You can assume both of them to prove the case for n + 1. Start with the RHS, use (12.14), then the inductive hypotheses. Prove (12.35a). The base case is n = 1. Prove (12.35b). The base case is n = 1. 5. 6. 1 Assignment 3 1. 2. Study Section 10.1. Math 221, Discrete Structures Do Exercise 10.1(a, b, c, d, e, g). For 10.1(d), you will need an implication in the body of a universal quantification. For 10.1(g), it is easiest to translate “It is not the case that” as ¬. 1 Assignment 4 1. Do Exercise 10.1(h, i, j, k, l, m). For 10.1(h) and (l), you will need an implication with the ∈ symbol. For 10.1(m), you will need to quantify with Σ with a body of 1. Do Exercise 10.3. Math...
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...FINAL EXAM STUDY GUIDE 1. A decision structure. case structure is a a. Single-alternative b. Dual-alternative d. Triple-alternative What is the expected output of the following flowchart? elrH?Xe*$le#s# ,,&.k$ry]ffilit*i+ My age is 31 and your age is less than that b. Our ages do not qualify c. Nothing d. Syntax error a. { FINAL EXAM STUDY GUIDE 3. What is the expected output of the following flowchart? My age is between 32 and 35 b. My age is not within that range c. Nothing a. d. Syntax error FINAL EXAM STUDY GUIDE 4. What is the expected output of the f'ollowing flowehart? You canvoto You carurot vote Nolhing d. Syntax error a. b. c. FINAL EXAM STUDY GUIDE 5. What is the expected output of the following flowchart? a. One of our numbers is 83 b. 83 is not our numbers c. Nothing d. Syntax error 6. Which operator would make the following expression true? False_Jrue a. b. AND NOT ffi d. OTHER 7. Which operator would make the following expression false? False True b. NOT d. OTHER c. OR 4 FINAL EXAM STUDY GUIDE 8. If the expression is false, the a. AND operator will return true. ffiOR c. d. 9. OTHER What type of operators are the following? d. 10. The Mathematical first line of the case structure starts with the word CASE followed by the test expression. a. True I l. Which a. b. c. structure causes...
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...UST Global, India: delivering software service solutions Balakrishnan Menon Balakrishnan Menon is a Professor in the DC School of Management and Technology, Idukki, India and Research Scholar in the School of Management Studies, Karpagam University, Coimbatore, India. 1. Introduction When the founder Chairman of US Technology Private Ltd (UST) Late Mr G. A Menon wanted to set up a software company in Trivandrum, the capital city of the communist party dominated state of Kerala in the year 1999, many people close to him warned that he was setting himself up for failure. The state of Kerala was, in those days, labeled as anti-investment and non-conducive to new entrepreneurial ventures, as it was dominated by a work force, controlled by militant trade unionism with a vested interest to keep their flocks together with age-old dogmas and philosophies. However, Mr Menon went ahead with his plan and set up the company in Trivandrum, as he was keen to do something for his home state, even when the top echelon in the Secretariat (head quarters of the state administration machinery) discouraged him. In subsequent years, UST became the largest software exporter from the state of Kerala, to USA and other countries. UST is a fully-owned subsidiary of California-based US Technology Resources LLC. Established on September 1, 1999 with barely 14 employees, the company was set up, as a 100 per cent Export Oriented Unit, to export software services and solutions, in Techno Park, Trivandrum...
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...outcomes. Air quality in developed countries has been generally improved over the last three decades. However, many recent epidemiological studies have consistently shown positive associations between low-level exposure to air pollution and health outcomes. Thus, adverse health effects of air pollution, even at relatively low levels, remain a public concern. This paper aims to provide an overview of recent research development and contemporary methodological challenges in this field and to identify future research directions for air pollution epidemiological studies. Introduction It is well known that exposure to high levels of air pollution can adversely affect human health. A number of air pollution catastrophes occurred in industrial countries between 1950s and 1970s, such as the London smog of 1952 [1]. Air quality in western countries has significantly improved since the 1970s. However, adverse health effects of exposure to relatively low level of air pollution remain a public concern, motivated largely by a number of recent epidemiological studies that have shown the positive associations between air pollution and health outcomes using sophisticated time-series and other designs [2]. This review highlights the key findings from major epidemiological study designs (including time-series, case-crossover, panel, cohort, and birth outcome studies) in estimating the associations of exposure to ambient air pollution with health outcomes over the last two decades, and identifies future...
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...Your Postgraduate Programme Learning Goals At the end of your programme of study you will have achieved the following goals: * Goal One: Be independent, reflective critical thinkers * Goal Two: Be culturally and ethically aware * Goal Three: Have developed leadership and management capability * Goal Four: Have developed and applied knowledge of international business and management theory * Goal Five: Have developed a range of research skills and project capabilities * Goal Six: (Specialist programmes only) Have developed specialist knowledge about the theory and practice of your programme of study All of the learning that takes place within modules is designed to enable you to achieve the above goals and your assessment tasks are mapped directly to these goals as outlined in each assessment brief. OUTLINE STUDY PLAN 2012/2013 | | Global Supply Chain Management MO0255 | S01 | Week | Lectures | Lecture Topic | Seminar | Recommended Reading | Directed study | 1 | Lecture 1 | Module Introduction | Making the groups of 4-5 studentsCase Study ReviewIntroduction to operation management (Operation Objectives in the Penang Mutiara Hotel) | Slack, N. (2010), sixth Edition, Chapter 2 | -Reading the TLP carefully-Reading stipulated chapters 1, 2 and 3 of the Slack, N. (2010). | | Lecture 2 | Introduction to Global Supply chain and management | | Slack, N. (2010), sixth Edition, Chapter 13 | -Evaluate the supply chain performance...
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...piece of technology most people have with them throughout the day is a cell phone. This study will investigate the relationship between the usage of cell phones and the increased risk of brain tumors. Numerous research studies have been done to analyze how the usage of cell phones correlates with the instance of brain tumors. This paper will analyze the findings of these studies and provide a description of the findings from the research studies that have been done related to the question do cell phones cause an increase in brain tumors to the cell phone users. Literature Review Berg, G., Spallek, J., Schüz, J., Schlehofer, B., Böhler, E., Schlaefer, K., et al. (2007) found that exposure to radio frequency and microwave electromagnetic fields can contribute to an increase the incidence of brain tumors. The same kind of radio frequency and microwave electromagnetic fields are produced by cell phone phones. If Radio frequency and microwave electromagnetic fields are both produced by cell phones than this could be an issue to anyone who uses a cell phone. If exposure to these radio frequencies and or microwave electromagnetic waves increases the risk of developing brain tumors this is a problem for the majority of the USAGE OF CELLPHONES AND BRAIN TUMORS population worldwide at an estimated “number of cell phone users in 2014 will reach 1.75 billion.” eMarketer (2014). Wiart, J., Wake, K., Vrijheid, M., Villegas, R., Vecchia, P., Taki, M., et al. (2011) suggest that...
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...to address the complex and often nebulous nature of human error. The Human Factors Analysis and Classification System Maintenance Extension (HFACS-ME) is one such framework that serves as an accident investigation and data analysis tool. This article will analyze how HFACS-ME is used from an applied perspective and demonstrate its utility using case studies. Human Factors Analysis and Classification System Maintenance Extension The Human Factors Analysis & Classification System (HFACS) was originally developed to analyze and classify human errors and other factors contributing to aviation incidents. HFACS combines features from Heinrich’s “Domino Theory” and Edward’s “SHEL Model” as well as Reason’s model to uncover factors that contribute to accidents (Schmidt, J. Lawson, D., n.d.). The Maintenance Extension of HFACS termed HFACE-ME was created to address aviation maintenance related incidents and facilitates the recognition of defective or absent defenses at four levels namely, Unsafe: Management Conditions, Maintainer Conditions, Working Conditions, and Maintainer Acts (Watson, J. Kanki, B., n.d.). For the most part HFACS-ME function very much like HFACS does for aircrew factors. Active failures and Latent conditions are segregated into one of three categories. These categories allows an analyst to identify failures at three levels namely, supervisory conditions, operator conditions, and operator acts. By doing so, these classifications...
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...planning process. Unit-III Sources of development finance; institutional finance to entrepreneurs; working capital management; incentives and subsidies; policies governing entrepreneurship; role of a consultancy organization. Unit-IV A review of project performance; post evaluation approach; community participation in projects; SWOT analysis; managing risk and exposure. Suggested Readings: 1. 2. 3. 4. Note: 1. 2. Four case studies will be discussed in a paper by the concerned teacher in the class. Instructions for External Examiner: The question paper will have two sections. Section ‘A’ shall comprise eight questions (two questions from each unit). The candidates will be required to attempt four questions (selecting one question from each unit). Section ‘B’ will contain one CASE STUDY which will be compulsory. All five questions will carry equal marks. Chandra, P., Project Planning Analysis, Selection, Implementation and Review, Tata McGraw Hill, New Delhi. Hedemey, J.W., Control and Management of Capital Projects, John Wiley, New York. Wysocki, R.K., R. Bick and D. B. Crane, Effective Project Management, John Wiley and Sons, USA. Vasant Desai, Project Management, Himalaya. Only latest editions of the above are recommended. Written Exam: 70 Internal Assessment: 30 Time: 3 Hours Entrepreneurship Development Paper Code: 3.2 Unit-1 Nature and dimensions of entrepreneurship; creativity, innovation and entrepreneurship; entrepreneurship versus...
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...decade, mobile phone use increased to almost 100% prevalence in many countries of the world. Evidence for potential health hazards accumulated in parallel by epidemiologic investigations has raised controversies about the appropriate interpretation and the degree of bias and confounding responsible for reduced or increased risk estimates. data sources: Overall, I identified 33 epidemiologic studies in the peer-reviewed literature, most of which (25) were about brain tumors. Two groups have collected data for ≥ 10 years of mobile phone use: Hardell and colleagues from Sweden and the Interphone group, an international consortium from 13 countries coordinated by the International Agency for Research on Cancer. data synthesis: Combined odds ratios (95% confidence intervals) from these studies for glioma, acoustic neuroma, and meningioma were 1.5 (1.2–1.8); 1.3 (0.95–1.9); and 1.1 (0.8–1.4), respectively. conclusions: Methodologic considerations revealed that three important conditions for epidemiologic studies to detect an increased risk are not met: a) no evidence-based exposure metric is available; b) the observed duration of mobile phone use is generally still too low; c) no evidence-based selection of end points among the grossly different types of neoplasias is possible because of lack of etiologic hypotheses. Concerning risk estimates, selection bias, misclassification bias, and effects of the disease on mobile phone use could have reduced estimates, and recall bias may have led...
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...Bed to Bench ©2012 RIGLD, Research Institute for Gastroenterology and Liver Diseases CASE PRESENTATION Depression in patients with chronic hepatitis B: an experience on individual solution- focused therapy Jinous Arvand1, Abdollah Shafiabadi2, Mohammad Reza Falsafinejad3, Nosratollah Naderi4 1 Faculty of Human Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran 2 Faculty of Human Sciences, Allameh Tabatabaei University, Tehran, Iran 3 Faculty of Human Sciences, Allameh Tabatabaei University, Tehran, Iran 4 Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran ABSTRACT Hepatitis B, as a chronic disorder that may be associated with several psychiatric disorders, such as depression, and decrease quality of life of affected patients. One of the most important consequences of psychiatric problems is reduced patient compliance with prolonged therapeutic regimens. Psychotherapy, such as solution– focused therapy, may help these patients to resolve psychiatric problems, increase quality of life and completion of therapeutic regimens. Solutionfocused therapy is effective for patients when developing effective coping responses to the stressors associated with chronic diseases. In this study, the process and effects of solution-focused therapy on depression of 2 patients with chronic hepatitis B have been described. They received solution focused therapy for 5 sessions, each session...
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...we examined the themes that emerged, the methodology employed, and the findings yielded, the ultimate goal being to identify knowledge gaps in the literature. To this end, we reviewed the relevant research conducted in the last 15 years by following the procedures outlined below. (a) Using the widely used social science database PsycINFO, we searched for articles which focused on both games and learning. The keywords chosen were “gam*” and either “learn*”, “teach*”, or “educat*” (the wildcard * can stand for any of a defined subset of all possible characters; for example “gam*” includes “game,” “games,” “gaming,” etc.). This generated about 4000 peer-reviewed articles from the earliest date (i.e., before 1960) to the end of 2008. (b) Given that studies conducted a decade ago tended to be less rigorous methodologically or yield obsolete results, we decided to focus our attention on more recent research. Once we narrowed down the time period to the years of 1995 to 2008, about 2400 peer-reviewed articles were left in the search results. (c) A quick survey of the 2400 articles revealed that many of them were not about games for educational purposes (e.g., research on game theory). Therefore, we screened the 2400 articles and eliminated those that were not relevant. This further reduced the number of articles to about 300. (d) We examined the 300 articles and identified if they were empirical or purely...
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...Worst Cases of QuickSort
Ramprasad Joshi
February 2, 2016
Abstract
In this article, we look at the worst cases of QuickSort: what they
are, and how numerous they are. We assume that the pivot is always
picked up from the first element.
1
The Plan
We run the following program repeatedly:
#include
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...report aims to determine particular visual patterns of degradation of latent fingerprints exposed to certain monitored laboratory conditions simulating those in the field. Factors considered include temperature, relative humidity, air currents, composition of fingerprint depositions (sebaceous and eccrine), various exposures to daylight (direct, penumbra, and darkness), and type of physical substrate (glass and plastic) over a period of 6 months. The study employs a titanium dioxide-based powder as developer. Our results indicate that, contrary to common belief, certain latent fingerprints exposed to direct sunlight indoors degrade similarly to those in the dark where environmental conditions are more constant. While all sebaceous latent fingerprints on glass are still useful for identification after 6 months, diverse results are obtained with impressions on plastic; these demonstrate a much higher and faster degree of decay, making identification difficult or impossible, especially for eccrine depositions. (De Alcaraz-Fossoul, J., Mestres Patris, C., Balaciart Muntaner, A., Barrot Feixat, C., & Gené Badia, M., n.d.) Fingerprint is one of the oldest, reliable...
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...Jackson County Judges The Problem Using a problem given to us in our study of Quantitative Business Analysis an excel spreadsheet has been created in order to answer the given questions. Following is the given problem. 1. The probability of cases being appealed in each of the three different courts. 2. The probability of cases being reversed in each of the three different courts. 3. The probability of cases being reversed given an appeal in each of the three different courts. 4. The probability of a case being appealed for each judge. 5. The probability of a case being reversed for each judge. 6. The probability of reversal, given an appeal for each judge. After these six questions have been answered then a ranking of the judges can be accomplished. The numbers being used in each of the calculations is coming from the excel worksheet that is attached. The last question of the given problem follows. Rank the judges within each court for each of the probabilities in 4 - 6. Then, find the sum of the ranks and get an overall ranking for each judge. Evaluate and discuss the meaning of your results. Results The following results are based on the calculations found on the attached Excel spreadsheet. The probability of cases being appealed in each of the three different courts uses the formula of: P(appeal)=Total number of cases appealed/total number of cases disposed. The results are as follows. Court Appeal Probability ...
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...risen exponentially. Unfortunately, tooth loss, whether it is through dental extractions or other means, has long term clinical sequelae associated with it. Osteonecrosis of the jaw, bacteremia, orbital cellulitis, and other psychological and physiological clinical sequelae that impact the well-being of the patient will be discussed. Osteonecrosis of the jaw (ONJ) is defined as the presence of exposed bone in the mouth that fails to heal after appropriate intervention over a period of 6 to 8 weeks (Reid), and results in chronic osteomyelitis with areas of bone necrosis. Most commonly affecting the mandible (Bagan), patients with ONJ experience symptoms that range from painless exposed bone to severe jaw pain (Sambrook). The majority of cases of ONJ have been found to be initiated and associated with tooth extraction procedures as a result of the introduction of oral flora to the exposed jaw bone that prevents healing and becomes infected (Ruggiero). In addition to tooth extractions being a precipitating event to ONJ, it has been found that ONJ occurs in patients who have previously undergone chemotherapy treatment for cancer and take bisphosphonate medications to counteract the effects of osteoporosis. Bisphosphonates are used for cancer treatment and osteoporosis because of its anti-angiogenic properties and ability to inhibit osteoclast action, respectively. This in turn manages the hypercalcemia that is seen in bone...
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