...Unit 24 - Assignment 1 Introduction For this assignment I will be describing the elements of a crime which are Mens Rea and Actus Reus. Mens Rea is Latin for 'guilty mind' and it is the mental thinking behind the crime which has been committed, it refers to the intentions of the person who committed the crime. For example, when someone commits theft their intention is to permanently deprive the owner/s of the object. Actus Reus is Latin for 'guilty act' and it can either be an act or a failure to act. For example, when someone commits theft they must've physically taken something. The three C's of Actus Reus must be taken into account when investigating a crime they are: • Conduct - this is the act of damaging or destroying something/someone. • Circumstances - this is the fact that the property must belong to another. • Consent - this is the resulting damage or destruction of the act. Causation Causation, also known as result crimes is when a consequence has come about as a result of the Actus Reus being committed. When establishing causation the first step is to ask 'was the defendant's act a cause in the fact of the specified consequence?' This can be answered by asking 'But for what the defendant did would the consequence have occurred?' If the answer is YES then the result wouldn't have occurred if not for the defendant's acts and, therefore causation is established. A case which shows the chain of causation is the case of R v White (1910) the defendant put cyanide...
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...Chapter 6: CPU Scheduling • • • Basic Concepts Scheduling Criteria Scheduling Algorithms Operating System Concepts 6.1 Basic Concepts • Maximum CPU utilization obtained with multiprogramming. • CPU–I/O Burst Cycle – Process execution consists of a cycle of CPU execution and I/O wait. – Example: Alternating Sequence of CPU And I/O Bursts – In an I/O – bound program would have many very short CPU bursts. – In a CPU – bound program would have a few very long CPU bursts. Operating System Concepts 6.2 1 CPU Scheduler • The CPU scheduler (short-term scheduler) selects from among the processes in memory that are ready to execute, and allocates the CPU to one of them. • A ready queue may be implemented as a FIFO queue, priority queue, a tree, or an unordered linked list. • CPU scheduling decisions may take place when a process: 1. Switches from running to waiting state (ex., I/O request). 2. Switches from running to ready state (ex., Interrupts occur). 3. Switches from waiting to ready state (ex., Completion of I/O). 4. Terminates. • Scheduling under 1 and 4 is nonpreemptive; otherwise is called preemptive. • Under nonpreemptive scheduling, once the CPU has been allocated to a process, the process keeps the CPU until it releases the CPU either by terminating or by switching to the waiting state. Operating System Concepts 6.3 Dispatcher • Dispatcher module gives control of the CPU to the process selected by the short-term scheduler;...
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...CPU SCHEDULINGCPU scheduling in UNIX is designed to benefit interactive processes. Processes are given small CPU time slices by a priority algorithm that reduces to round-robin scheduling for CPU-bound jobs.The scheduler on UNIX system belongs to the general class of operating system schedulers known as round robin with multilevel feedback which means that the kernel allocates the CPU time to a process for small time slice, preempts a process that exceeds its time slice and feed it back into one of several priority queues. A process may need much iteration through the "feedback loop" before it finishes. When kernel does a context switch and restores the context of a process. The process resumes execution from the point where it had been suspended.Each process table entry contains a priority field. There is a process table for each process which contains a priority field for process scheduling. The priority of a process is lower if they have recently used the CPU and vice versa.The more CPU time a process accumulates, the lower (more positive) its priority becomes, and vice versa, so there is negative feedback in CPU scheduling and it is difficult for a single process to take all the CPU time. Process aging is employed to prevent starvation.Older UNIX systems used a 1-second quantum for the round- robin scheduling. 4.33SD reschedules processes every 0.1 second and recomputed priorities every second. The round-robin scheduling is accomplished by the -time-out mechanism, which tells...
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...computer It estimates that it will take competitors at least two yeas to produce equivalent products. The demand function for the computer has been estimated to be P = 2,500 - .0005Q The marginal (and average variable) cost of producing the computer is $900. a. Compute the profit-maximizing price and output levels assuming Pear acts as a monopolist for its product. Answer: The monopolist would equate marginal revenue (MR) with marginal cost (MC) Total revenue (TR) = P*Q = 2500Q-Q^2 MR = dTR/dQ = 2500-2Q We have MC = 900 So MR= MC implies 2500-2Q= 900, implies monopoly output Q* = 800 (in units of 100) And monopoly price P = 2500-0.0005*800 = 2499.6 b. Determine the total contribution to profits and fixed costs from the solution generated in part (a). Answer: Total profit = P*Q-MC*Q = 800*2499.6 900*800 = $ 1279680 (in units of 100) Pear Computer is considering an alternative pricing strategy of sliding down the demand curve. It plans to set the following schedule of prices over the coming two ------------------------------------------------- years. Branding Iron Products, a specialty steel fabricator, operates a plant in the town of West Star, Texas. The town has grown rapidly because of recent discoveries of oil and gas in the area town. Many of the new residents have expressed concerns at the amount of pollution (primarily particulate matter in the air and waste water in the town's rivers) emitted by Branding Iron. Three proposals...
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...Unit 1 Government, Policies and the Public Services Learners Name: Assignment Title: 1 Roles and Levels of Government Assessment Criteria: P1,P2,M1 Unit Tutor: Mr Mitchell Assignment Issue Date: 9-9-13 Assignment Due Date: 24-10-13 Unit 1 Government, Policies and the Public Services Assignment 1 Learning Outcomes | 1 | Assessment Criteria | P1, P2, M1 | Assessment method | Powerpoint presentation with supporting written evidence | Suggested Reading 1. Axford B et al – Politics: An Introduction, 2nd Edition (Routledge, 2002) ISBN 0415226422/9780415226424 2. Peele G – Governing the UK, 4th Edition (Wiley-Blackwell, 2004) ISBN 0631226818/9780631226819 Journals 1. Fire 2. Police Review 3. Prison News 4. Soldier Magazines 1. The Economist 2. The Spectator 3. The Week Website 1. 10 Downing Street www.number10.gov.uk 2. Direct Gov – public services all in one place www.direct.gov.uk 3. Euro information from the Treasury www.euro.gov.uk 4. HM Treasury www.hm-treasury.gov.uk 5. Home Office www.homeoffice.gov.uk 6. Home Office – Working in the UK www.workingintheuk.gov.uk 7. Information for local government from central government www.info4local.gov.uk 8. Information on policies and standards for e-government www.cabinetoffice.gov.uk/govtalk.aspx 9. Independent software development and consultancy firm (provides links to central and local government websites) www.tagish.co.uk/links ...
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...Chapter 5: CPU Scheduling Operating System Concepts – 8th Edition Silberschatz, Galvin and Gagne ©2009 Chapter 5: CPU Scheduling Basic Concepts Scheduling Criteria Scheduling Algorithms Thread Scheduling Multiple-Processor Scheduling Operating Systems Examples Algorithm Evaluation Operating System Concepts – 8th Edition 5.2 Silberschatz, Galvin and Gagne ©2009 Objectives To introduce CPU scheduling, which is the basis for multiprogrammed operating systems To describe various CPU-scheduling algorithms To discuss evaluation criteria for selecting a CPU-scheduling algorithm for a particular system Operating System Concepts – 8th Edition 5.3 Silberschatz, Galvin and Gagne ©2009 Basic Concepts Maximum CPU utilization obtained with multiprogramming CPU–I/O Burst Cycle – Process execution consists of a cycle of CPU execution and I/O wait CPU burst distribution Operating System Concepts – 8th Edition 5.4 Silberschatz, Galvin and Gagne ©2009 Alternating Sequence of CPU and I/O Bursts Operating System Concepts – 8th Edition 5.5 Silberschatz, Galvin and Gagne ©2009 Histogram of CPU-burst Times Operating System Concepts – 8th Edition 5.6 Silberschatz, Galvin and Gagne ©2009 CPU Scheduler Selects from among the processes in ready queue, and allocates the CPU to one of them Queue may be ordered in various ways Switches from running to waiting state Switches from running...
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...Demand and Supply: The Basics 21 FUNDAMENTALS OF ECONOMICS FOR BUSINESS - (Second Edition) © World Scientific Publishing Co. Pte. Ltd. http://www.worldscibooks.com/economics/6794.html Chapter 2 Introduction The most basic, and in many ways the most lasting, lesson to be learnt from “Economics 101” relates to the fundamental concepts of demand and supply and their interaction. These are usually presented in a simple graphical format involving demand and supply “curves”. The word is in quotes because in this chapter, for simplicity, we will actually assume only straightline relationships between price and quantities demanded and supplied. The main issue that is important in reality is the direction of the relationship between prices and quantities. Will a reduction in price lead to an increase in the quantity demanded of any particular product or service? Will an increase in price lead to an increase in supply? And so on. The principal technical tools for analyzing demand and supply conditions in particular markets, then, are the demand and supply schedules or curves. The demand curve shows an estimate or conjecture about the relationship between the price of any particular product or service and the quantity of that product that will be demanded by consumers. It is usually assumed to slope downward, in the general case, for most products and services. In other words, the lower the price of the item, the greater the quantity of it that will be demanded. Technically, this...
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...Problem) | | Ali Al-Nasser | 20092446 | Problem Al Kobaisi Group is a ready mix company which has three plants in various locations among Kingdom of Bahrain. They signed a contract with Al-Moayed contracting to supply them with concrete mix for three different projects located at three different areas. The following tables show the amount of concrete mix each plant can provide and required quantities for each project: Al Kobaisi Group Plants | Supply | P1 | 200 m3/day | P2 | 450 m3/day | P3 | 325 m3/day | Project Name | Demand | M1 | 100 m3/day | M2 | 375 m3/day | M3 | 500 m3/day | Al Kobaisi Group will rent the trucks from a transportation company to transfer the concrete mix from the plants to the sites. Sales manager of Al Kobaisi Group wants to know the optimum way of assignment of trucks in which the cost will be minimum. Use the below table in order to help the manager in taking the decision using one of the L.P models. P/M | M1 | M2 | M3 | Supply | P1 | 20 | 5 | 13 | 200 | P2 | 9 | 18 | 7 | 450 | P3 | 11 | 16 | 23 | 325 | Demand | 100 | 375 | 500 | | In order to solve the above mentioned problem we are going to use transportation model. However, before starting the solution a brief description of the model will be illustrated as follow: Transportation Problem Many practical problems in operations research can be broadly formulated as linear programming problems, for which the...
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...Question (1): Assume a 45-hr/week and an hourly wage of €21. Material cost is €15 per running meter and the standard inventory value of output is €173 per unit. Overhead is charged weekly at the rate of €1838 and 0.75 times direct cost. Week | 1 | 2 | 3 | 4 | Output | 636 | 576 | 624 | 644 | Workers | 12 | 11 | 11 | 9 | Material (meter) | 4125 | 3675 | 3930 | 4035 | A. Briefly explain the concept of productivity? Productivity Productivity is a measure of the rate at which outputs of goods and services are produced per unit of input (labor, capital, raw materials, etc.). It is calculated as the ratio of the amount of outputs produced to some measure of the amount of input used. Productivity = Quantity of goods and services produced Amount of resources used As the equation indicates, there are two variables in measuring productivity- the amount of production and amount of resources used. Productivity varies with the amount of production relative to the amount of resources used. Productivity can be increased in several ways, which Are given below here- 1. Increase production using the same or a smaller amount of resources. 2. Reduce the amount of resources used while keeping the same production or increasing it. 3. Allow the amount of resources used to increase c production increases more. 4. Allow production to decrease as long as...
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...Price Elasticity of Demand A. Definition Price Elasticity of Demand is a measure of how much the quantity demanded of good responds to a change in the price of that good. B. Formula [pic] this value is normally negative. Notes: • Since the demand curve is downward sloping the above fraction will have a negative value. To change the negative value into a positive value the absolute value is taken. • Elasticity is different from slope. Slope is measured by ∆QD/∆P C. Five Classifications 1. Perfectly inelastic demand does not change [pic] % change in QD = 0 2. Inelastic demand little change [pic] % change in QD < % change in P 3. Unit elastic demand [pic] % change in QD = % change in P The only way it can be equal to one is if its curve linear. 4. Elastic demand [pic] % change in QD > % change in P 5. Perfectly elastic demand [pic] % change in P = 0 III. Income Elasticity of Demand A. Definition Income Elasticity of Demand is a measure of how much the quantity demanded of good responds to a change in the income of consumers....
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...The beautiful you…. ABOUT SCHON SCHON was introduced in the year 2004 with a foresight to dress the young females with the latest fashion and style in casual wear. SCHON in German means “BEAUTIFUL”. The Brand has been steadily marching ahead to meet the challenges of the fashion-conscious woman. Its zeal and vision to pioneer is being reflected by an almost self-effacing work-style, where the greater good ensures the individual good. As a result, SCHON is emerging as an elegant trendsetter for the feminine apparel industry. They are amongst the first few to modernize the traditional knitwear into the sophistication which makes a Fashion Statement every day, day by day... The Company believes in building a reliable and constructive relationship with its suppliers who provide the best quality in materials and the Consumer who has been appreciating the Product since a long time now. The success-secret of SCHON lies in its dedicated and diligent work force, led by a progressive management. The major focus remains on quality & design which has earned us the repute and appreciation of our customer. SCHON SPRING SUMMER COLLECTION- The SCHON Spring/Summer 2011 fashion collection is rich in tales that are seemingly worlds apart, but in fact have a common link: a passion for elegance. SCHON finds romantic tales of flowers; sparkling, sunny afternoons dominated by white; lively evenings ablaze with colour. CLASSIFICATION & SUB-CLASSIFICATION About the STORE…. Location:...
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...CHAPTER 15 Problem 1 Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up teller window occur at random, with an arrival rate of 24 customers per hour or 0.4 customers per minute. a) What is the mean or expected number of customers that will arrive in a five-minute period? The expected number is of 0.4*5 = 2 customer is a five-minute period. b) Assume that the Poisson probability distribution can be used to describe the arrival process. Use the arrival rate in part (a) and compute the probabilities that exactly 0, 1, 2, and 3 customers will arrive during a five-minute period. The probabilities of the described scenarios are as follows: P0=20e-20! P0=0.135335283 P1=21e-21! P1=0.270670566 P2=22e-22! P2=0.270670566 P3=23e-23! P3=0.180447044 c) Delays are expected if more than three customers arrive during any five-minute period. What is the probability that delays will occur? This probability can be expressed as the probability of more than 3 customers arriving during the five-minute period, which can be computed as following: P(x > 3) = 1 – P(x ≤ 3) P (x > 3) = 1 – 0.85712346 P(x > 3) = 0.14287654 Thus, there is a 14, 29% probability of expected delays in five-minute period. Problem 3 Use the single-server drive-up bank teller operation referred to in Problems 1 and 2 to determine the following...
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...dynamically balance the load among servers and improve utilization of resources. There are still some areas that are needed to be focused on in cloud computing. Resource Management Task Scheduling The task scheduling goals of Cloud computing is provide optimal tasks scheduling for users, and provide the entire cloud system throughput and QoS at the same time. Scheduling is the process of allocating tasks to available resources on the basis of tasks need [5].The main purpose for scheduling is to maximize the utilization of resources. Following are the needs of job scheduling in cloud computing: CPU utilization – keep the CPU as busy as possible (from 0% to 100%) Throughput – # of processes that complete their execution per time unit Turnaround time – amount of time to execute a particular Process Waiting time – amount of time a process has been waiting in the ready queue...
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...Week 7 Homework 24. H0: μ2 ≤ μ1 H1: μ2 > μ1 a = 0.05 (one-tailed) z-crit = 1.645 test statistic z = (μ2-μ1) / √[(s1)²/n + (s2)²/m] = (351-345) / √[28²/60 + 21²/54] = 1.3 Failed reject H0 because 1.3 < 1.645 and conclude that the difference in means is not significant because the number of units produced on the afternoon shift is larger. 34. These are independent samples of sufficient size to use the z-test for proportions. n1 = 270 x1 = 56 n2 = 203 x2 = 52 α = 0.05 p1’ = x1/n1 = 56 / 270 = 0.2074 p2’ = x2/n2 = 52 / 203 = 0.2562 pbar = (x1 + x2) / (n1 + n2) = (56 + 52) / (270 + 203) = 0.2283 qbar = 1 – pbar = 1 – 0.2283 = 0.7717 H0: p1 = p2 Ha: p1 ≠ p2 (claim) At α = 0.05 for a two-tailed test, zcrit = ±1.96 ztest = [ (p1’ – p2’) – (p1 – p2) ] / √[(pbar)(qbar)(1/n1 + 1/n2)] ztest = [ (0.2074 – 0.2562) – 0 ] / √[(0.2283)(0.7717)(1/270 + 1/203)] ztest = -1.2515 Since ztest > zcrit, the null hypothesis cannot be rejected. There isn’t enough evidence to support the claim that there is a difference in the proportion of humorous advertisements in British vs American trade magazines. 37. H0: μ2 ≤ μ1 H1: μ2 > μ1 Mean (1)=125.125 Mean(2)= 117.714 Sd(1)= 15.094 Sd(2)= 19.914 Sp2= 305.708 t= (125.125-117.714) / √[305.708 (1/8+1/7)] = 0.819 There is no difference in the mean number sold at regular price and the mean number sold at the reduce price. Therefore, we cannot reject the H0. 38. This is a one-tailed...
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... 4 2 Budget Constraint 8 3 Preferences 10 4 Utility 14 5 Choice 18 6 Demand 24 7 Revealed Preference 27 8 Slutsky Equation 30 9 Buying and Selling 33 10 Intertemporal Choice 37 12 Uncertainty 39 14 Consumer Surplus 43 15 Market Demand 46 18 Technology 48 19 Profit Maximization 52 20 Cost Minimization 54 21 Cost Curves 57 22 Firm Supply 59 23 Industry Supply 62 24 Monopoly 64 2 25 Monopoly Behavior 67 26 Factor Market 72 27 Oligopoly 76 28 Game Theory 80 30 Exchange 85 3 Ch. 1. The Market I. Economic model: A simplified representation of reality A. An example – Rental apartment market in Shinchon: Object of our analysis – Price of apt. in Shinchon: Endogenous variable – Price of apt. in other areas: Exogenous variable – Simplification: All (nearby) Apts are identical B. We ask – How the quantity and price are determined in a given allocation mechanism – How to compare the allocations resulting from different allocation mechanisms II. Two principles of economics – Optimization principle: Each economic agent maximizes its objective (e.g. utility, profit, etc.) – Equilibrium principle: Economic agents’ actions must be consistent with each other III. Competitive market A. Demand – Tow consumers with a single-unit demand whose WTP’s are equal to r1 and r2 (r1 < r2 ) p r2 r1 1 2 – Many people 4 Q p ...
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