...power can be measured in two ways: on the linear scale, by the number of watts that are being transmitted; and on a relative scale, by the number of decibels (dBs) instead of watts. Decibel milliwatt (dBm) is the logarithmic power ratio (in dB) of the measured power in milliwatts referenced to one milliwatt (mW). Notice that the reference point is specified as 1 mW = 0 dBm. 3’s and 10’s rules are shortcuts for estimating the increase or decrease of these power levels. In this lab, students will practice basic RF calculations, including · converting from mW to dBm; · converting from dBm to mW; and · estimating power levels using the 3’s and 10’s rules. Task 1: Converting between dBm and mW Applying the 3’s and 10’s rules, the relationship between dBm and mW is estimated as shown in the following (partial) table. 3’s rule|10’s rule| ……|……| 0.125 mW = -9 dBm|0.001 mW = -30 dBm| 0.25 mW = -6 dBm|0.01 mW = -20 dBm| 0.5 mW = -3 dBm|0.1 mW = -10 dBm| 1 mW = 0 dBm|1 mW = 0 dBm| 2 mW = 3 dBm|10 mW = 10 dBm| 4 mW = 6 dBm|100 mW = 20 dBm| 8 mW = 9 dBm|1,000 mW = 30 dBm| ……|……| Notice that as the mW value increases or decreased by the factor of 10, the dBm value increases and decrease by adding or subtracting 10. As the mW value doubles or halves, the corresponding dBm value increases and decrease by adding or...
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...Management System is a System Software or an Application Software System Software: System software is computer software or an operating system designed to operate and control the computer hardware and to provide a platform for running application software. Actually, system software is any computer software which manages and controls computer hardware so that application software can perform a task. Operating systems, such as Microsoft Windows, Mac OS X or Linux, are prominent examples of system software. System software is not meant to be run by the end user. For example, while you might use your Web browser every day, you probably don't have much use for an assembler program. System software runs at the most basic level of your computer. Application Software: Application software, also known as an application or an app, is computer software designed to help the user to perform specific tasks. Examples include enterprise software, accounting software, office suites, graphics software. Application software applies the power of particular system software to a particular purpose. Applications software (also called end-user programs) includes database programs, word processors, and spreadsheets. Applications software sits on top of systems software because it is unable to run without the operating system and system utilities. Example of system software and application software given in a chart: Database Management System(DBMS): A database management system (DBMS) is a software...
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...BAC 416 Accounting Information System Chapter 1 Multiple choice 1. The flow and level of detail of information operations management, as internal user of information is a. horizontal b. vertical downward c. vertical (upward & downward) d. vertical upward 2. An example of information exchanges with financial institutions, as an external stakeholder, is a. stock transaction information c. inventory receipts information b. sales & billing information d. sale of goods & services information 3. A subsystem is called a system when it is a. viewed in relation to the larger system of which it is a part b. the focus of attention c. able to achieve its goals d. able to interact with the other system 4. A system is said to have the ability to achieve its goal when a. there is a convenient way of representing, viewing, and understanding the relationships among subsystems b. all parts serve a common purpose c. it can serve at least one purpose but it may serve several d. there is an effective functioning and harmonious interaction of its subsystems 5. This is processed by its information system as a unit of work. a. financial transaction b. transaction c. nonfinancial transaction d. resources 6. AIS subsystems a. process financial & nonfinancial transactions that directly affect the processing of financial transactions b. measure economic events in monetary terms c. process nonfinancial...
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...All DBMS definition files have the same structure made up of a number of categories, each of which may contain items or other categories. The items, and their values are different for each DBMS. Each item is present only if it is relevant to the DBMS. Each value is a SQL statement or other parameter to define how to model, generate and reverse engineer for the DBMS. Each DBMS file has the following structure: * General - contains general information about the database, without any categories (see General Category). All items defined in the General category apply to all database objects. * Script - used for generation and reverse engineering. Contains the following sub-categories: * SQL - contains the following sub-categories, each of which contains items whose values define general syntax for the database: * Syntax - general parameters for SQL syntax (see Syntax Category) * Format - parameters for allowed characters (see Format Category) * File - header, footer and usage text items used during generation (see File Category) * Keywords - the list of SQL reserved words and functions (see Keywords Category) * Objects - contains commands to create, delete or modify all the objects in the database. Also includes commands that define object behavior, defaults, necessary SQL queries, reverse engineering options, and so on (see Script/Objects Category). * Data Type - contains the list of valid data types for the specified...
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...cortical allografts serve as a stabilizing strut while undergoing bone remodeling by the mechanism of creeping substitution. The processing of cortical bone, intended to remove undesirable immunologically active elements, may also remove desirable elements (including endogenous growth factors) and affect the bone’s ability to undergo creeping substitution. Summary, continued Results of this study suggest that: • DBM prepared from MTF ATP cortical tissue was consistently osteoinductive in this model; 7 out of 7 ranked samples were osteoinductive (1 sample could not be ranked due to histological artifacts). The average bone score for the 7 ranked samples was 2.17 ± 0.82. • DBM prepared from RTI BioCleanse cortical tissue was not osteoinductive in this model; 7 out of 7 ranked samples were not osteoinductive (1 sample could not be ranked due to histological artifacts). The average bone score for the 7 ranked samples was 0.00 ± 0.00, exactly the same as the heatinactivated negative control. In addition, histological views showed fibrous tissue/inflammatory response. • DBM prepared from LifeNet Allowash cortical tissue was partially osteoinductive in this model; 3 out of 7 ranked samples were...
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...for watching video? Can you identify any shortcomings of the device? 2. Compare the capabilities of the Kindle to the iPad. Which is a better device for reading books? Explain your answer. 3. Would you like to use an iPad or Kindle for the books you use in your college courses or read for pleasure instead of traditional print publications? Why or why not? II Porter’s competitive forces model helps companies develop competitive strategies using information systems. In this context answer the following questions: 1. Define Porter’s competitive forces model and explain how it works. 2. Describe what the competitive forces model explains about competitive advantage. 3. List and describe four competitive strategies enabled by information systems that firms can pursue. 4. Describe how information systems can support each of these competitive strategies and give examples. 5. Explain why aligning IT with business objectives is essential for strategic use of systems. III Discussion Questions 1. It has been said that there is no such thing as a sustainable competitive advantage. Do you agree? Why or why not? 2. It has been said that the advantage that leading-edge retailers such as Dell and Wal-Mart have over their competition isn’t technology; it’s their management. Do you agree? Why or why not? 3. What are some of the issues to consider in determining whether the Internet would provide your business with a...
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...Structural functional theory is when society is a complex system of interconnected and interrelated social structures each having a function and working together to promote social stability. One hundred million people shop at Wal-Mart every week. Wal-Mart is very convenient for people to shop at. Most people do not even have to shop at other stores because Wal-Mart has everything. It’s also convenient because it is right around the corner from a lot of customers houses; they don’t have to travel far to find a Wal-Mart store so they save gas. People already know that Wal-Mart has the lowest prices so they don’t have to search for stores with low prices. The items sold are good quality as well as cheap. What more could someone ask for. Wal-Mart is a world leader in logistics and promotes greater efficiency between its suppliers. Bob McAdam who is the Wal-Mart vice president states in the video, “We are raising the standard of living through lowering the cost of goods for people.” He is saying that Wal-Mart is good for Structural functional theory is when society is a complex system of interconnected and interrelated social structures each having a function and working together to promote social stability. One hundred million people shop at Wal-Mart every week. Wal-Mart is very convenient for people to shop at. Most people do not even have to shop at other stores because Wal-Mart has everything. It’s also convenient because it is right around the corner from a lot of customers houses;...
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...The systems approach Attempts to reconcile the classical approach (emphasised the technical requirements of the organisation and its needs) with the human relations approach (emphasised the psychological and social aspects, and the consideration of humans needs). The attention is focused on the total work organization and the interrelationship of structure and behavior, and the range of the variables within the organisation. The principal idea is that any part of an organisations activities affects all others parts. The business organisation is an open system, there is continual interaction with the broader external environment of which it is part. The systems approach views the organisation within its total environment and emphasies the importance of multiple channels of interaction. The systems approachs views the organisation as a whole and involves the study of the organisations in terms of the relationships between technical and social variables within the system. The contingency approach This approach explain that the most appropriate structure and system pf management is therefore dependent upon the contingencies of the situation for each particular organisation, this approach implies that the organisation theory shouldn’t seek to suggest one best way to structure or manage organisation but should provide insights into the situational and contextual factors which influence management decisions. Other approaches to the study of organisations: -The decision-making...
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...Chapter 1: Two Different Worldviews The Framework of Individual Psychology The Framework of Systemic Family Therapy Basic Concepts of Systems Theory and Cybernetics Family Therapy or Relationship Therapy? Summary Chapter 2: The Historical Perspective Planting the Seeds: The 1940s Cybernetics Development of Interdisciplinary Approaches Gregory Bateson Putting Down Roots: The 1950s Bateson (Continued) The Double-Bind Hypothesis Nathan Ackerman Murray Bowen Carl Whitaker Theodore Lidz Lyman Wynne Ivan Boszormenyi-Nagy John Elderkin Bell Christian F. Midelfort Overview of the 1950s The Plant Begins to Bud: The 1960s Paradigm Shift The MRI Salvador Minuchin Other Developments Blossom Time: The 1970s Psychodynamic Approaches Natural Systems Theory Experiential Approaches Structural Approaches Strategic Approaches Communication Approaches Behavioral Approaches Gregory Bateson Connecting and Integrating: The 1980s Other Voices The Limits of History Controversy, Conflict, and Beyond: The 1990s The Feminist Critique Family Therapy and Family Medicine Integration and Metaframeworks Managed Care The Twenty-First Century: Continuing Concerns and Emerging Trends Summary Chapter 3: The Paradigmatic Shift of Systems Theory A Cybernetic Epistemology Recursion Feedback Morphostasis/Morphogenesis Rules and Boundaries Openness/Closedness ...
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...first lectures of the course show an empirical and theoretical view of the major principles of the organizational design as well as the alternative design forms. The stakeholders, both insiders and outsiders, and their behavior or relations of cooperation and competition suppose an analysis need that provides them of a huge importance. I also realize about the importance of the agency theory and the problems and remedies caused, improving the importance of efficient corporate governance. This need of a good organization is solved by the systems theory, ”Organizations are systems of interdependent activities linking shifting coalitions of participants; the systems are embedded in – dependent on continuing exchange with and constituted by – the environments in which they operate”. (Scott, 1998:28). The systems which formed the organization have a common target and are classified in three levels based on their relevance. Both, stakeholders and systems, needs an analysis in order to get success in our procedures and adapt the venture structure to the different organizational designs provided in the lectures. After understanding these concepts, the lectures focused on the relation between the main management factors (Vision and mission) and the drivers analyzed, providing goals and strategies to the organization. As important as the creative process is the analysis to know the organizational boundaries, which let the organization look for available goals based on the efficiency and effectiveness...
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...for watching video? Can you identify any shortcomings of the device? 2. Compare the capabilities of the Kindle to the iPad. Which is a better device for reading books? Explain your answer. 3. Would you like to use an iPad or Kindle for the books you use in your college courses or read for pleasure instead of traditional print publications? Why or why not? II Porter’s competitive forces model helps companies develop competitive strategies using information systems. In this context answer the following questions: 1. Define Porter’s competitive forces model and explain how it works. 2. Describe what the competitive forces model explains about competitive advantage. 3. List and describe four competitive strategies enabled by information systems that firms can pursue. 4. Describe how information systems can support each of these competitive strategies and give examples. 5. Explain why aligning IT with business objectives is essential for strategic use of systems. III Discussion Questions 1. It has been said that there is no such thing as a sustainable competitive advantage. Do you agree? Why or why not? 2. It has been said that the advantage that leading-edge retailers such as Dell and Wal-Mart have over their competition isn’t technology; it’s their management. Do you agree? Why or why not? 3. What are some of the issues to consider in determining whether the Internet would provide your business with a...
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...Organizations as a system. A system is a whole made up of parts. Each part can affect the way other parts work and the way all parts work together will determine how well the system works. when can look at business organization as a system because it conforms to the system definition; it recognizes the interrelationships of people, processes, decisions and designs organizational structure in order to realize its projected economic goal. An organization with a good designed system will requires an understanding of how all the parts (for instance, HR department, production department, logistic department, finance department, sales department, marketing department, IT department …etc) fit together as a whole, an intimate understanding of the parts themselves for a better understanding of endogenous event and a full awareness of the organization’s environment including the other external systems to which it is connected to better prepare for exogenous changes. Some hypothetical problems that disrupt the balance of the an organization would be a coordination or communication issue between departments, for instance HR department not selecting adequate candidate for a specific job skill because it did not have all relevant information about the job, or for instance marketing department lunches a new product without integrating logistic department in the project which may cause delays of production and order fulfillment issues. Another issue that may disrupt the balance of the system is exogenous...
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...PubMed Abstract: Retroviral capsid proteins are conserved structurally but assemble into different morphologies. The mature human immunodeficiency virus-1 (HIV-1) capsid is best described by a 'fullerene cone' model, in which hexamers of the capsid protein are linked to form a hexagonal surface lattice that is closed by incorporating 12 capsid-protein pentamers. HIV-1 capsid protein contains an amino-terminal domain (NTD) comprising seven α-helices and a β-hairpin, a carboxy-terminal domain (CTD) comprising four α-helices, and a flexible linker with a 310-helix connecting the two structural domains. Structures of the capsid-protein assembly units have been determined by X-ray crystallography; however, structural information regarding the assembled capsid and the contacts between the assembly units is incomplete. Here we report the cryo-electron microscopy structure of a tubular HIV-1 capsid-protein assembly at 8 Å resolution and the three-dimensional structure of a native HIV-1 core by cryo-electron tomography. The structure of the tubular assembly shows, at the three-fold interface, a three-helix bundle with critical hydrophobic interactions. Mutagenesis studies confirm that hydrophobic residues in the centre of the three-helix bundle are crucial for capsid assembly and stability, and for viral infectivity. The cryo-electron-microscopy structures enable modelling by large-scale molecular dynamics simulation, resulting in all-atom models for the hexamer-of-hexamer and pentamer-of-hexamer...
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...Manager, Telecoms & Broadcast Services * Managing existing clientele and building new potential customers in the assigned territory * Responsible for developing, positioning and selling the broadcast service across the region * Continually building and improving the broadband, multimedia and broadcast services thru innovative pre-sales and marketing activities. * Working closely with engineering and product team to improve delivery of Speedcast products and services. MEASAT Satellite Systems – Assistant Manager, Ground Engineering * To co-ordinate, monitor and perform all ground systems equipment and VAS maintenance and operations; * To perform anomaly / fault investigation and produce appropriate documentation / technical reports as directed; * To develop new testing procedure and suggest procedure enhancement for increase operating efficiency; * To participate in the procuring, commissioning and testing of new earth station or VAS systems. Be part of the...
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...well: This chapter involves review of previous studies and researches carried out which were found to be related to this presently. Detailed review of literature was carried out to cover the following study areas as shown: - Organizations - Management - Motivation (Reward) and its theories - Relevance of motivation (reward) on productivity. 2.2 ORGANIZATION Organization can be defined as two or more people who work together in structured way achieve a specific goal or goals. Organization can be defined form diverse perspectives. According to Scott (1981) these are there perspective for defining organization these are: 1. Organization as rational systems. 2. Organization as natural systems. 3. Organizations an open system. Organization as Rational Systems: The definition of Organizations as a rational system emphasizes two major characteristic of Organizations. a. Specification of goals b. Formalization of structure. According or Barnard (1938) “formal Organization is that kind of cooperation concision of men that are conscious l deliberate and purposeful Scott (1981). Defines an Organization as a collectively oriented to the pursuit of relatively specific goals an exhibiting a relatively highly formalized social...
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