Development of VLSI Technology

Development of VLSI Technology CHAPTER 1 1. INTRODUCTION The VLSI was an important pioneer in the electronic design automation industry. The â€Å"lambda-based† design style which was advocated by carver mead and Lynn Conway offered a refined packages of tools.. VLSI became the early hawker of standard cell (cell-based technology). Rapid advancement in VLSI technology has lead to a new paradigm in designing integrated circuits where a system-on-a-chip (SOC) is constructed based on predesigned and pre-verified cores such as CPUs, digital signals processors, and RAMs. Testing these cores requires a large amount of test data which is continuously increasing with the rapid increase in the complexity of SOC. Test compression and compaction techniques are widely used to reduce the storage data and test time by reducing the size of the test data. The Very large scale integration design or manufacturing of extremely small uses complex circuitry of modified semiconductor material. In 1959- jack St. Claire Kilby (Texas instruments) they developed the first integrated circuit of 10 components on 9 mm2. In 1959, Robert Norton Noyce (founder, Fairchild semiconductor) has improved this integrated circuit which has been developed by Jack St Claire Kilby, in 1968- Noyce, Gordon E. Moore found Intel, in 1971- Ted Hoff (Intel) has developed the first microprocessor (4004) consists of 2300 transistors on 9 mm2, since then the continuous improvement in technology has allowed for increased performance as predicted by Moores law. The rate of development of VLSI technology has historically progressed hand-in-hand with technology innovations. Many conventional VLSI systems as a result have engendered highly specialized technologies for their support. Most of the achievements in dense systems integration have derived from scaling in silicon VLSI process. As manufacturing has improved, it has become more cost-effective in many applications to replace a chip set with a monolithic IC: package costs are decreased, interconnect path shrink, and power loss in I/O drivers is reduced. As an example consider integrated circuit technology: the semi conductor industry Association predicts that, over the next 15 years, circuit technology will advance from the current four metallization layers up to seven layers. As a result, the phase of circuit testing in the design process is moving to the head as a major problem in VLSI design. In fact, Kenneth M, Thompson, vice president and general manager of the Technology, Manufactur ing, and Engineering Group for Intel Corporation, states that a major falsehood of testing is that â€Å"we have made a lot progress in testing† in reality it is very difficult for testing to keep speed with semi conductor manufacturing technology. Todays circuits are expected to perform a very broad range of functions as it also meets very high standards of performance, quality, and reliability. At the same time practical in terms of time and cost. 1.1 Analog Digital Electronics In science, technology, business, and, in fact, most other fields of endeavor, we are constantly dealing with quantities. In the most physical systems, quantities are measured, monitored, recorded, manipulated, arithmetically, observed. We should be able to represent the values efficiently and accurately when we deal with various quantities. There are basically two ways of representing the numerical value of quantities: analog and digital 1.2 Analog Electronics Analogue/Analog electronics are those electronic systems with a continuously variable signal. In contrast, two different levels are usually taken in digital electronics signals. In analog representation a quantity is represented by a voltage, current, or meter movement that is comparative to the value of that quantity. Analog quantities such as those cited above have n important characteristic: they can vary over a continuous range of values. 1.3 Digital Electronics In digital representation the quantities are represented not by proportional quantities but by symbols called digits. As an example, consider the digital watch, which provides the time of day in the form of decimal digits which represent hours and minutes (and sometimes seconds). As we know, the time of day changes continuously, but the digital watch reading does not change continuously; rather, it changes in steps of one per minute (or per second). In other words, this digital representation of the time of day changes in discrete steps, as compared with the representation of time provided by an analog watch, where the dial reading changes continuously. Digital electronics that deals with â€Å"1s and 0s†, but thats a vast oversimplification of the in and outs of going digital. Digital electronics operates on the premise that all signals have two distinct levels. Certain voltages might be the levels near the power supply level and ground depending on the type of devices used. The logical meaning should not be mixed with the physical signal because the meaning of this signal level depends on the design of the circuit. Here are some common terms used in digital electronics: Logical-refers to a signal or device in terms of its meaning, such as â€Å"TRUE† or â€Å"FALSE† Physical-refers to a signal in terms of voltage or current or a devices physical characteristics HIGH-the signal level with the greater voltage LOW-the signal level with the lower voltage TRUE or 1-the signal level that results from logic conditions being met FALSE or 0-the signal level that results from logic conditions not being met Active High-a HIGH signal indicates that a logical condition is occurring Active Low-a LOW signal indicates that a logical condition is occurring Truth Table-a table showing the logical operation of a devices outputs based on the devices inputs, such as the following table for an OR gate described as below 1.4 Number Systems Digital logic may work with â€Å"1s and 0s†, but it combines them into several different groupings that form different number systems. Most of are familiar with the decimal system, of course. Thats a base-10 system in which each digit represents a power of ten. There are some other number system representations, Binary-base two (each bit represents a power of two), digits are 0 and 1, numbers are denoted with a ‘B or ‘b at the end, such as 01001101B (77 in the decimal system) Hexadecimal or ‘Hex-base 16 (each digit represents a power of 16), digits are 0 through 9 plus A-B-C-D-E-F representing 10-15, numbers are denoted with ‘0x at the beginning or ‘h at the end, such as 0x5A or 5Ah (90 in the decimal system) and require four binary bits each. A dollar sign preceding the number ($01BE) is sometimes used, as well. Binary-coded decimal or BCD-a four-bit number similar to hexadecimal, except that the decimal value of the number is limited to 0-9. Decimal-the usual number system. Decimal numbers are usually denoted by‘d at the end, like 24d especially when they are combined with other numbering systems. Octal-base eight (each digit represents a power of 8), digits are 0-7, and each requires three bits. It is rarely used in modern designs. 1.5 Digital Construction Techniques Building digital circuits is somewhat easier than for analog circuits-there is fewer components and the devices tend to be in similarly sized packages. Connections are less susceptible to noise. The trade-off is that there can be many connections, so it is easy to make a mistake and harder to find them. There are a few visual clues as result of uniform packages. 1.5.1 Prototyping Boards Prototypes is nothing but putting together some temporary circuits, or, as part of the exercises using a common workbench accessory known as a prototyping board. A typical board is shown in Figure 1 with a DIP packaged IC plugged into the board across the centre gap. This board contains sets of sockets in rows which are connected mutually for the component leads to be connected and plugged in without soldering. Apart from these outer edges of the board which contains long rows of sockets are also connected together so that they can be used for ground connections and power supply which are common to most components. Assembling wiring layout on the prototype board should be carried out systematically, similar to the schematic diagram shown. 1.5.2 Reading Pin Connections IC pins are almost always arranged so that pin 1 is in a corner or by an identifying mark on the IC body and the sequence increases in a counter-clockwise sequence looking down on the IC or â€Å"chip† as shown in Figure 1. In almost all DIP packages, the identifying mark is a dot in the corner marking pin 1. Both can be seen in the diagram, but on any given IC only one is expected to be utilised. 1.5.3 Powering Digital Logic Where analog electronics is usually somewhat flexible in its power requirements and tolerant of variations in power supply voltage, digital logic is not nearly so carefree. Whatever logic family you choose, you will need to regulate the power supply voltages to at least  ±5 percent, with adequate filter capacitors to filter out sharp sags or spikes. To provide references to the internal electronics that sense the low or high voltages and also act on them as logic signals, the logic devices rely on stable power supply voltages. The device could be confused and also misinterpret the inputs if the devices ground voltage is kept away from 0 volts, which in turn causes temporary changes in the signals, popularly known as glitches. It is better to ensure that the power supply is very clean as the corresponding outcome can be very difficult to troubleshoot. A good technique is to connect a 10 ~ 100  µF electrolytic or tantalum capacitor and a 0.1  µF ceramic capacitor in parallel across the power supply connections on your prototyping board. CHAPTER 2 2. REVIEW AND HISTORICAL ANALYSIS OF ITERATIVE CIRCUITS As a background research, recent work on iterative circuits was investigated. In this section, seven main proposals from the literature will be reviewed. The first paper by Douglas Lewin published in (1974, pg.76,277), titled Logic Design of Switching Circuits, in this book he states that quite often in combinational logic design, the technique of expressing oral statements for a logic circuit in the form of a truth table is inadequate. He stated that for a simple network, a terminal description will often suffice, but for more complex circuits, and in particular when relay logic is to be employed, the truth table method can lead to a laborious and inelegant solution. 2.1 Example: A logic system could be decomposed into a number identical sub-systems, then if we could produce a design for the sub-system, or cell, the complete system could be synthesized by cascading these cells in series. The outputs of one cell form the inputs to the next one in the chain and so on, each cell is identical except for the first one (and frequently he last one) whose cell inputs must be deduced from the initial conditions. Each cell has external inputs as well as inputs from the preceding cell, which are distinguished by defining the outputs of a cell as its state. Figure 2.1 Iterative Switching Systems The second proposal which will b reviewed was presented by Fredrick J. Hil and Gerald R. Peterson published in (1981, pg. 570), titled Introduction to Switching Theory and Logic Design, in this book, they discussed that iterative network is highly repetitive form of a combinational logic network. The repetitive structure make possible to describe the iterative networks utilizing techniques that already developed for sequential circuits, the author in this books he has limited his discussion to one dimensional iterative networks represented by the cascade or identical cells given in below figure. A typical cell with appropriate input and output notation is given in one more figure below (b). Now note the two distinct types of inputs, i.e., primary inputs from the outside world and secondary inputs from the previous cell in the cascade. And similarly and there are two types of outputs, i.e., primary to the outside world and secondary to the next cell in the cascade. The boundary input s which are at the left of the cascade denoted by us in the same manner as secondary inputs. At some cases the inputs will be constant values. A set of boundary inputs emerges from the right most cell in the cascade. although these outputs are to the outside world, they will be labelled in the same manners secondary outputs. The boundary outputs will be the only outputs of the iterative networks. The third proposal by Barri Wilkinson with Raffic Makki, published in (1992, pg. 72-4) titled -digital design principles, in this book, they discussed about the design and problems of iterative circuits and stated that, there are some design problems which would require a large number of gates if designed as two level circuits. On approach i.e., is to divide each function into a number of identical sub functions which need be performed in sequence and the result of one sub function is used in the next sub function. A design based around the iterative approach is shown in below figure. There are seven logic circuit cells each cell accepts one code word digit and the output from the preceding cell. The cell produces one output, Z, which is a 1 whenever the number of 1s on the two inputs is odd. Hence successive outputs are a 1 when the number of 1s on inputs to that point is odd and the final output is a 1 only when the number of 1s in the whole code word is odd as required. To create an iterative design, the number of cells and the number of data inputs to each cell need to be determined and also the number of different states that must be recognized by the cell. The number of different states will define the number of lines to the next cell (usually carrying binary encoded information). The fourth proposal was reviewed by Douglas Lewin and David Protheroe published in (1992, pg. 369),titled Design of Logic systems, in this book, according to them, iterative networks were widely used in the early days of switching systems when relays were the major means of realizing logic circuits. these technique fell into disuse when electronic logic gates widely available. It is possible to implement an arbitrary logic function in the form of an iterative array, the technique is most often applied to functions which are in the sense ‘regular in that the overall function may be achieved by performing the same operation up to a sequence of a data bits. Iterative cell techniques are particularly well suited to pattern recognition and encoding and decoding circuits with large numbers of parallel inputs. The method is also directly applicable to the design of VLSI circuits and has the advantage of producing a modular structure based on a standard cell which may be optimized independently in terms of layout etc. Circuits containing any number of input variables can easily be constructed by simply extending the network with more cells. they examine the iterative circuits with some examples, although it is possible to implement an arbitrary logic function in the form of an iterative array, the technique is most often applied to functions which are in this sense ‘regular in that the overall function may be achieved by performing the same operation upon a sequence of data bits. Suppose a logic system could be decomposed into a number of identical subsystems; then if we could produce a design for the subsystem, or cell, the complete system could be synthesized by cascading these cells in series. Problem Reduced: this problem now has been reduced to that of specifying and designing the cell, rather than the complete system. The fifth proposal presented by Brians Holdsworth published in (1993, pg. 165-166) titled Digital Logic Design, stated that iterative networks widely used before the introduction of electronic gates are again of some interest to the logic designers as a result of developments in semiconductor technology. Moss pass transistors which are easily fabricated are used in LSI circuits where these LSI circuits require less space and allow higher packing densities. One of the major disadvantages of hard-wired iterative networks was the long propagation delays because of the time taken for signals to ripple through a chain of iterated cells. This is no longer such a significant disadvantage since of the length of the signal paths on an LSI chip are much reduced in comparison with the hard-wired connections between SSI and MSI circuits. However, the number of pass transistors that can be connected in series is limited because of signal degradation and it is necessary to provide intercell buffe rs to restore the original signal levels. One additional advantage is the structural simplicity and the identical nature of the cells which allows a more economical circuit layout. A book proposed by Brians Holdsworth and R.C. Woods published in (2002, pg.135), titled Digital Logic Design, in this book, the discussion on the structure has made and stated that iterative network consists of number of identical cells interconnected in a regular manners as shown in figure with the variables X1.Xn are termed as primary input signals while the output signals termed as Z1Zn and another variable is also taken a1an+1 are termed as secondary inputs or outputs depending on whether these signals are entering or leaving a cell. The structure of an iterative circuit may be defined as one which receives the incoming primary data in parallel form where each cell process the incoming primary and secondary data and generates a secondary output signal which is transmitted to the next cell. Secondary data is transmitted along the chain of cells and the time taken to reach steady state is determined by the delay times of the individual cells and their interconnections. According to Larry L. Kinney, Charles .H and Roth. JR, published in (2004, pg.519) titled Fundamentals of Logic design, in this book they discussed that many design procedures used for sequential circuits can be applied to the design of the iterative circuits, they consists of number of identical cells interconnected in a regular manner. Some operations such as binary addition, naturally lend themselves to realization with an iterative circuit because of the same operation is performed on each pair input bits. The regular structure of an iterative circuit makes it easier to fabricate in integrated circuit from than circuits with less regular structures, the simplest form of a iterative circuit consists of a linear array of combinational cells with signals between cells travelling in only one direction, each cell is a combinational circuit with one or more primary inputs and possibly one or more primary outputs. In addition, each cell has one or more secondary inputs and one or more secondary outputs. Then the produced signals carry information about the â€Å"state† of one cell to the next cell. The primary inputs to the cells are applied in parallel; that is, they are applied at the same time, the signals then propagate down the line of cells. Because the circuit is combinational, the time required for the circuit to reach a steady- state condition is determined only by the delay times of the gates in the cell. As soon as steady state is reached, the output may be read. Thus, the iterative circuits can function as a parallel- input, parallel-output device, in contrast with the sequential circuit in which the input and output are serial. One can think of the iterative circuits as receive its inputs as a sequence in time. Example: parallel adder is an example of iterative circuits that has four identical cells. The serial adder uses the same full adder cell as he parallel adder, but it receives its inputs serially and stores the carry in a flip-flop instead of propagating it from cell to cell. The final proposal was authored by JOHN F WAKERLY, published in (2006, pg. 459, 462, 756), titled Digital Design Principles, in this book he quoted that, iterative circuits is a special type of combinational circuits, with the structure shown in below figure. This circuit contains n identical modules, each of which contains both primary inputs and primary outputs and cascading inputs and cascading outputs. The left most cascading inputs which is shown in below figure are called boundary inputs and are connected to fixed logic values in most iterative circuits. The right most cascading outputs are called boundary outputs and these cascading output provides important information. Iterative circuits are well suited to problems that can be solved by a simple iterative algorithm: Set C0 to its initial value and set i=0 Use Ci and Pli to determine the values of P0i and Ci+1. Increment i. If i In an iterative circuit, the loop of steps 2-4 is â€Å"unwound† by providing a separate combinational circuit that performs step 2 for each value of i. Each of the works reviewed makes an important contribution to improve the disadvantages and problems by iterative circuits, which is lead to improving the iterative circuits, thus it is appealing me to pursue an investigation on the sequential circuits for better understanding about the iterative circuits CHAPTER 3 3. OVERVIEW OF DESIGN METHODS FOR ITERATIVE CIRCUITS 3.1 Iterative design Iterative design is a design methodology based on a cyclic process of prototyping, testing, analyzing, and refining a product or process. Changes and refinements are made, in the most recent iteration of a design, based on the results of testing. The quality and functionality design can be improved by this process. The interaction with the designed system is used as a research for informing and evolving a project, as successive versions in Iterative design. 3.2 Iterative Design Process The iterative design process may be applied throughout the new product development process. In the early stages of development changes are easy and affordable to implement. In the iterative design process the first is to develop a prototype. In order to deliver non-biased opinions the prototype should be examined by a focus group which is not associated with the product. The Information gained from the focus group should be integrated and synthesized into next stage of iterative design. This particular process must be recurred until an acceptable level is achieved for the user. Figure 3.1 Iterative Design Process 3.3 Iterative Circuits Iterative Circuits may be classified as, Combinational Circuits Sequential Circuits. Combinatorial circuit generalized using gates has m inputs and n outputs. This circuit can be built as n different combinatorial circuits, apiece with exactly one output. If the entire n-output circuit is constructed at once then some important sharing of intermediate signals may take place. This sharing drastically decreases the number of gates needed to construct the circuit. In some cases, we might be interested to minimize the number of transistors. In other, we might want a little delay, or we may need to reduce the power consumption. Normally a mixture of such type must be applied. In combinational logic design, the technique of expressing oral statements for a logic circuit in the form of a truth table is inadequate. For a simple network, a terminal description will often suffice, but for more complex circuits, and in particular when relay logic is to be employed, the truth method can lead to laborious and inelegant solutions. Iterative cell techniques are particularly well suited to pattern recognition and encoding and decoding circuits with a large number of parallel inputs, circuits specification is simplified and large variable problems reduced to a more tractable size, this method is directly applicable to the design of VLSI circuits. It should be pointed out though that the speed of the circuit is reduced because of the time required for the signals to propagate along the network; the number of interconnections is also considerably increased. In general, iterative design does not necessarily result in a more minimal circuit. As the advantage of producing a modular structure, circuits containing any number of input variables can be easily constructed by simple extending the networks with more cells. Suppose for example a logic system could be decomposed into number of identical sub subsystems, then if we would produce a design for the subsystem or a cell the complete system could be synthesized by cascading these cells in series. The problem has now been reduced to that of specifying and designing the cell, rather than the complex systems In general, we define a synchronous sequential circuit, or just sequential circuit as a circuit with m inputs, n outputs, and a distinguished clock input. The description of the circuit is made with the help of a state table with latches and flip-flops are the building blocks of sequential circuits. The definition of a sequential circuit has been simplified as the number of different states of the circuit is completely determined by the number of outputs. Hence, with these combinational circuits we are going to discuss a normal method that in the worst case may waste a large number of transistors For a sequential circuit with m inputs and n outputs, our method uses n D-flip-flops (one for each output), and a combinatorial circuit with m + n inputs and n outputs. 3.4 Iterative Circuits-Example An iterative circuit is a special type of combinational circuit, with the structure shown, The above diagram represents the iterative circuits and this circuit contains ‘n identical modules each of which has both primary inputs and outputs and cascading inputs and outputs. The left most cascading inputs are called boundary inputs and are connected to fixed logic values in most iterative circuits. The right most cascading outputs are called boundary outputs and usually provide important information. Quiet often in combinational logic design, the technique of expressing oral statements for a logic circuit in the form of truth table is inadequate. Iterative circuits are well suited to problems that can be solved by an algorithm i.e iterative algorithm Set C0 to initial value and set i to 0. Use Ci and Pli to determine the values of P0i and Ci+1. Increment i. If i In an iterative circuits, the loop of steps 2-4 is â€Å"unwound† by providing a separate combinational circuit that performs step 2 for each value of i. 3.5 Improving the testability of Iterative Circuits As stated by A.Rubio et al, (1989, pg.240-245), the increase in the complexity of the integrated circuits and the inherent increase in the cost of the test carried out on them are making it necessary to look for ways of improving the testability of iterative circuits.The integrated circuits structured as iteration of identical cells, because their regularity have a set of advantages that make them attractive for many applications. Among these advantages are their simplicity of design, because the structural repetition of the basic cell, manufacturing, test, fault tolerance and their interest for concurrent algorithmic structure implementation. Here in this journal we also study about the testability of iterative circuits the below figure illustrates the typical organization of an N-cells iterative unidimensional circuit (all the signals go from left to right); however the results can be extended to stable class of bilateral circuits. The N cells have identical functionality. Every cell (i) has an external input yi and an internal input xi coming from the previous cell (i-1). Every cell generates a circuit output signal yi and an internal output xi that goes to the following cell (i+1).The following assumptions about these signals are considered below All the yi vectors are independent. Only the x1, y1, y2.yn signals are directly controllable for test procedures. Only the y1, y2 yn signals are directly observable. The xi and ^xi signals are called the states (input and output states respectively) of the ith-cell and are not directly controllable (except xi) neither observable (except xn). Kautz gives the condition of the basic cell functionality that warrants the exhaustive testing of each of the cells of the array. These conditions assure the controllability and observability of the states. In circuits that verify these conditions the length of the test increase linearly with the number of cells of the array with a resulting length that is inferior to the corresponding length for other implementation structures. A fundamental contribution to the easy testability of iterative circuits was made by Freidman. In his work the concept of C-testability is introduced; an iterative circuit is C-testable if a cell-level exhaustive test with a constant length can be generated. This means the length is independent of the number of cells composing the array (N). The results are generalised in several ways. In all these works it is assumed that there is only one faulty cell in the array. Cell level stuck-at (single or multiple) and truth-table fault models are considered. The set T of test vectors of the basic cell is formed by a sequence (what ever the order may be) of input vectors to the cell. Kautz proposed the cell fault model (CFM) which was adopted my most researchers in testing ILAs. As assumed by CFM only one cell can be faulty at a time. As long as the cell remains combinational, the output functions of the faulty cell could be affected by the fault. In order to test ILA under CFM every cell should be supplied with all its input combinations. In Addition to this, the output of the faulty cell should be propagated to some primary output of the ILA. Friedman introduced c-testability. An ILA is C-testable if it can be tested with a number of test vectors which are independent of the size of the ILA. The target of research in ILA testing was the derivation of necessary and sufficient conditions for many types of ILAs (one dimensional with or without vertical outputs, two-dimensional, unilateral, bilateral) to be C-testable. The derivations of these conditions were based on the study of flow table of the basic cells of the array. In the case of an ILA which is not C-testable modifications to its flow table (and therefore as to its internal structure) and/or modifications to the overall structure of the array, were proposed to make it C-testable. Otherwise, a test set with length usually proportional to the ILA size was derived (linear testability). In most cases modifications to the internal structure of the cells and/or the overall structure of the ILA increase the area occupied by the ILA and also affect it performance. ILA testing considering sequential faults has been studied, sequential fault detection in ripple carry adders was considered with the target to construct a shortest length sequence. In sufficient conditions for testing one dimensional ILAs for sequential faults were given. It was not shown that whenever the function of basic cell of an ILA is bijective it can be tested with constant number of tests for sequential faults. To construct such a test set like this a procedure was also introduced. The following considerations from the basis of our work. Many of the computer aided design tools are based on standard cells libraries. While testing an ILA, the best that can be done is to test each of its cells exhaustively with respe

Bacteria: Good or Bad?

In the world, some people see bacteria as something that is harmful and that causes nothing but illness and infections. Bacteria can actually be helpful as well. It can provide vitamins to your body, help digestion, destroy bad organisms, help make medicines and also help out with the environment. In this research paper, it will describe two bacteria that are helpful and sometimes harmful to humans and the environment, which are E. coli and Lactobacillus Acidophilus. E. coli E. coli is the bacteria that live in the intestines of humans and animals. It and other bacteria help develop the body and keep your intestines healthy. It also provides vitamins to the body. But, E. coli can also cause food poisoning and infection of other parts of the body. It can cause kidney failure, anemia and urinary tract infections. It can get into food and water and cause us to become ill. It can also be passed from contact with another person if they haven’t washed their hands. E. coli may keep people healthy, but it only works that way if they know how to maintain good health and stay clean. Lactobacillus Acidophilus Lactobacillus Acidophilus is the bacteria found in dairy products, intestinal tract and the mouth. It helps digestion and protects the intestines from the harmful bacteria. It breaks down the bad bacteria and destroys them from becoming a hazard to the environment. Acidophilus also stops diarrhea and constipation and also protects women from yeast infection. In conclusion, there are many bacteria that can be both harmful and helpful, other than the two bacteria that was previously discussed. Bacteria can cause sickness, but it can also cure it. It can help you to become healthy, but it can also make the body and environment deteriorate. Bacteria are needed to survive and people can’t live without it.

10 Facts About Aardvarks

A Critical Analysis Of Dr. Seuss - 1454 Words

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Park Ridge Is A Population Of 37856 People Essay - 1802 Words

Park Ridge has a population of 37,856 people; it consists of a median resident age of 44 years (Park Ridge, Illinois). Estimated median household income is $85,967 and an estimated median house or condo value is $364,345 (Park Ridge, Illinois). The demographics of the people living in Park Ridge consists of 87 percent Whites, 6.7 percent Hispanics, 3.7 percent Asians, and 1.1 percent Blacks (Park Ridge, Illinois). As I traveled around the neighborhood of the Maine East High School, I observed a numerous resources in terms of restaurants areas, groceries stores, and overall real estate development of the area. There are several opportunities in the area; lots of up and coming companies and businesses are present. Furthermore, groceries store like Jewel-Osco was 2 blocks away from the actual school itself; and the area has a ton of other alternatives options for shopping. Malls and big plazas surrounds the area and offer lots of useful stores can be found almost anywhere (See appendix 1). Large homes surround Maine East High School (See appendix 4). District 207 revenue by source for the year 2014-15 indicates that local property taxes for the district are $113,093,113, other local funding are $6,215,628, general state aid are $3,217,216, and other state funding are $4,239,735, coming to a grand total of $130,270,117 for the District of 207 which only has three schools: Maine East, Maine West, And Maine South (Illinois School Report Card). These numbers are incredible

Conflict In Algeria Between Their French Settlers History Essay Free Essays

This paper aims to explicate and analyse the instance of the struggle between the Algerian population and their Gallic colonists. The ground of the struggle is the dissension of the Algerians with the unjust intervention the Gallic were giving to them specially in footings of instruction, political relations and life quality. The construction of this paper is to measure the struggle harmonizing to the content of the class of â€Å" Conflict Management † foremost supplying a general background of the state of affairs and analysing if it is a struggle or a difference. We will write a custom essay sample on Conflict In Algeria Between Their French Settlers History Essay or any similar topic only for you Order Now Then the writers classify the struggle harmonizing to several standards and province if it is an intractable or manipulable struggle placing the phases it has been trough. And there is besides an analysis of the used schemes and if those schemes brought a declaration or a colony, it is traveling to be examined the relationship of the parties and the trust among them. Finally there are besides studied the unethical tactics and the type of scheme used. In order to recognize this undertaking there were used several beginnings from Data bases that contains newspapers articles and magazines articles. The writers besides used secondary informations that has been collected by other beginnings such as some dependable web pages. Conflict in Algeria Background The Algerian Independence procedure began in 1954 because of the Algerians ‘ dissatisfaction with being treated as 2nd -class citizens by the Gallic colonial authorities. The revolution ‘s philosophical foundations came from the privileged Algerians who were skilled by the Gallic instruction system[ 1 ]. As a effect of this Algerians started to considerate military solutions as the lone manner to accomplish ego finding. This was leaded by a group called the national release forepart ( FLN ) under the leading of Ahmed Ben Bella who was looking frontward to a independent Algeria, a societal democratic state within an Islamic model.[ 2 ] At the get downing the military motions did non hold mass popular support ; nevertheless the oppressive Gallic reprisals for European victims started traveling popular sentiment behind the FLN. As the struggle was turning up the Gallic Army sent over 400,000 soldiers to Algeria in an effort to fleetly oppress the independency motion, their barbarous repute and contempt for the local public non merely served to mobilise the understandings of the local public in favour of independency[ 3 ], but besides turned universe sentiment against France. France turned into a immense concentration camp the Algerian district where mass apprehension and anguish were implemented to interrupt the financess of the independent motions. The struggle was turning fast, the figure of victims rose and the Algerians where desperate and needed desperately the triumph. In 1958 is carried out the putsch that brought back into power the Gallic Charles de Gaulle after 10 old ages of absence. Afterwards the terminal of the war came with the Evian understanding signed in March 18, 1962 between France and theA FLN, which ended the war and grantedA Muslim independency for Algeria[ 4 ]. Harmonizing to the information given in category we can categorise this state of affairs as a struggle because it occurred in a long period of clip, it has its roots really back in the yesteryear, around the 1800 with the Gallic colonialism in northern Africa but the independency procedure started in 1954. It is besides consider as a struggle because it involves non-negotiable issues such as the misdemeanor of human rights. We besides identify a zero-sum game thought because both parties ( Gallic authorities and the Algerians ) were non interested in making a dialogue that suits both sides demands, they had wholly opposite involvements. The effects of the war were lay waste toing both pecuniary and human lifes, the Gallic victims where about 100.000 and the Algerians loses exceed a million while another one million eight hundred 1000 people where refugees[ 5 ]. These types of effects are besides relevant to tag this scenario as a struggle Algerian struggle categorization Forms of manifestation: the Algerian struggle is a violent one because in the independent motions of this state were involved the Gallic ground forces an another armed groups who finished off with many civilians lifes, it is besides an intractable struggle because making an understanding was a unsmooth and hard procedure that took really long clip. Scope: this struggle is systemic because harmonizing to the definition, it involves parties within and outside a territorial lodger or nationality of the parties involved. The Algerian district, dwellers and authorities and it ‘s encroachers the Gallic and besides the international community who did n’t take part straight in the struggle but ever manifestate the dissension with the Gallic behaviour towards Algeria. Percept: The struggle is non pseudo because the dissension does be, and besides the beings of opposite involvement it is besides expressed, so harmonizing to the perceptual experience the struggle is existent. Both parties show their involvements and demands, their differences, mutual exclusivenesss and opposite precedences, and cognize what the other ‘s party are. Causes: Harmonizing to causes, the struggle is political because it involves the authorities engagement and there is besides the presence of cultural struggles, race murders and war in general. But it besides can be seen as an ideological struggle because the Algerians where in dissension with the Gallic authorities in the manner they were treated and they supported the group called the national release forepart ( FLN ) who helped to distribute through the whole state the independency feelings. Consequences: The effects of this struggle were destructive because of all the economical, political, territorial and human losingss that result from this independency war. Beginnings: The state of affairs between Algeria and the Gallic colonial authorities is a struggle of involvement where both parties have wholly different demands and they try to enforce their ain to the other. Organizational degree: Harmonizing to the organisational degree this struggle can non be classified since it does non take topographic point into an organisation, but we could state that it is an intergroup struggle since it involves two different groups Tractable or Intractable Harmonizing to the definition given by Peter T. Coleman â€Å" Intractable struggles are those that persist for long periods of clip, are destructive and resist every effort to decide them constructively † . Thus we can state this is an intractable struggle since it last long clip and presented a great figure of casualities, one hundred thousand Gallic colonists and soldiers died, while over one million Algerian civilians and guerillas were executed and killed.[ 6 ] The struggle besides was hard to work out because both parties had wholly opposite aims and moral differences. Phases of the Conflict Latent Conflict: Since 1830 when France invaded a colonize Algeria. Conflict Emerge: The motion for independency came from the Algerians ‘ dissatisfaction with being treated as second-class citizens by the Gallic colonial authorities.[ 7 ] Conflict Escalation: Many conditions encouraged this escalation. After the Indochina War Algerians soldiers began to see that it was clip to obtain independency for Algeria and as the Gallic colonial authorities did non desire to lose their land, on November 1, 1954, FLNA launched onslaughts in assorted parts of the district against military installings, constabulary stations, warehouses, communications installations, and public public-service corporations. Both parties said the lone manner to carry through their aims was war[ 8 ] Deadlock: Around 1958-9, they realized the struggle was merely go forthing many deceases puting them in a Mutually Hurting Stalemate. De-escalation / Negotiation: Started once more on 1961 at Evian when Gallic authorities reopenedA negotiations with the FLN. Dispute Colony: Finally reached on 1962 with the Evian Accords. Both sides of the struggle were using a distributive scheme because their primary Interests were opposed and did non mind about the other or their relationship. The struggle was resolved by the Evian Accords, the consequence of dialogues between representatives of France and the Probationary Government of the Algerian Republic ( GPRA ) formed by the National Liberation Front ( FLN ) during the Algerian war.A These understandings were signed March 18, 1962 in Evian and consequence in an immediate armistice applied to the full Algerian district. The Evian Accords besides allowed the colons equal legal protection with Algerians over a three-year period. These rights, among others, included regard for belongings, engagement in public personal businesss, and a full scope of civil and cultural rights[ 9 ] Competitive or concerted? It was preponderantly competitory, due to both parties were oriented to single benefits and additions, France and Algeria were working against the other for maximization of self-interest, France concentrated all its forces to retain the â€Å" Gallic Algeria †[ 10 ]and the FLN ( Front de Liberation Nationale ) was taking the mutuality from France. Towards the terminal of 1995 France and Algeria was involved in a complete clime of war[ 11 ]. Presence of power Algeria did non hold much power because the initial military actions were limited and were without mass popular support, alternatively, France had more military power, but that was non plenty to hinder the Algerian independency. As the struggle grew the Gallic Army sent over 400,000 soldiers to Algeria in an effort to fleetly oppress the independency motion, their barbarous repute and contempt for the local public non merely served to mobilise the understandings of the local public in favour of independency, but besides turned universe sentiment against France[ 12 ]. Trust, how to construct it? There was n’t, swear in fact people thought that it was n’t a manner to decide the job, as the Gallic curate of interior, socialist Francois Mitterrand said â€Å" the lone possible dialogue is war. † They can construct trust doing an understanding, but the of import point is non to do it but to carry through it, both parties would hold to maintain their promises, act as expected and put trust in the other, in this manner France and Algeria would make a concretion based trust. Unethical tactics and schemes There was n’t unethical tactics but societal contract and terminal consequence moralss used because both parties ( Algerian population and Gallic colonial authorities ) were believing that mass apprehensions and anguish was right for the society so it would be right for the persons and they thought that was ethical if they achieve what they want it and it does n’t count how this was obtained. There was used contending as a scheme for dialogue, because both parties were seeking to carry the other to accept what they wanted that favor one ‘s ain involvements. Negotiation between the parties the independency tide was unstoppable, in 1962 the Evians Accord signaled France ‘s credence of self finding for the Algerian people and laid out the timetable for eventual Algerian independency in 1962 with Ben Bella as its first President[ 13 ], so, in this struggle was used a dialogue as via media, because France give up and accept the Algerian independency. Decisions The issue can be classified as a struggle because the Gallic colonial authorities and the Algerians had really of import differences and thought making an understanding was impossible. It was destructive ; this struggle let 1000000s of dead Gallic and Algerians. Although making an understanding seemed to be impossible the Algerians achieved it taking advantage of the failing phase France was traveling through and the dissension of the international community with its colonisation procedure. This struggle is chiefly political because it consists of an cultural struggles, race murders and war in general. The struggle was resolved in 1962 with the Evian ‘s agreement in which France accepted the conditions that leaded to the Algerian independency. How to cite Conflict In Algeria Between Their French Settlers History Essay, Essay examples

Infection Control Practices for Intradermal †MyAssignmenthelp.com

Question: Discuss about the Infection Control Practices for Intradermal. Answer: Introduction: I was assigned to administer subcutaneous injection to a patient named Antonio, who have survived an umbilical hernia surgery and is under the post operative care. The Physician has advised a deep vein prophylaxis for the patient management. I ensured that I would follow the NMC codes of nursing standard. I was working with the patient for in the post operative care unit and was allotted to give the medication in the form of subcutaneous injection. I was allotted to give an anticoagulant heparin of dosage 5000units as per the dosage written in the patients drug chart. ( Ampules containing 25000 units and volume 0.2 ml). As I entered the room, I introduced myself and then identified the patient using two easy identifiers. Accurate verification of the identity of the patient is an important component of the medication administration as per the six rights of medication administration (Alabdulhafith et al., 2014). I explained the procedure and the information of the medicine to the patie nt. As per the NMBA nursing standard 6.1, I am entitled to provide a safe care to the patient, hence in order to avoid any infection I had donned the gloves after finishing the five moments of hand and hygiene. I made it sure that before administering the injecting I wiped the patients skin as allowed it to dry for 30 seconds. It is necessary to understand whether the time of administration match the order. According to Pourghaznein et al.,(2014), it is necessary to ensure that specified time intervals has been maintained. I ensured that I abide by the nursing protocols for the subcutaneous administration of the medication, as it complies with the standard 6.5, where a nurse it accountable to the policy guidelines, regulations and the protocols. At first I chose a site that is free of any lesions and bony prominences. I pinched the area where I would administer the injection. Pinching pulls the adipose tissue away from the muscles making the administration of the injection easier. I held the syringe in my dominant hand between my thumb and forefinger and then inserted the needle at an angle of 45 . After that I made it sure to dispose of the injection into the bins. I made it sure that I had used the two step process of syringe disposal as per the FDA standard. This was my experience of choosing the administration site of the subcutaneous injection. I was a bit perturbed regarding the administration as I have heard of the complications that can happen due to the application of subcutaneous injection. I cross checked the medicine dosage as Heparin is a high risk medicine and special care should be taken to ensure correct dosages and the correct timing. As per the feedback from my peers I had administered the injection too quickly. Slow injection is the normally preferred approach as per the study by Hutin et al., (2013) it has been found that slow injection would have a less pain intensity and bruising size at the administration site. I was nervous whether this would affect the patients recovery. The choice of the injection site needs a good clinical judgment and proper review of the patient (Hutin et al., 2012). Proper administration of the medication ensures that there is a smooth flow of blood through the capillaries. I ensured to follow the 6 rights of medication administration, the right client, right route, right drug and r ight dose and the right time. (Murphy et al., 2012).As a registered nurse I am aware of the nursing standards of medication administration, in exercising my professional accountability in the best interest of my patient. However, I was happy that I received a positive feedback from the patient as well as my teachers. I ensured that I would use the feedback in my next scope of practice as self evaluation and monitoring the progress in an important part of my profession and align with the NMBA nursing standard 7. One of the positive results of the skill assessment is to acquire mastery over subcutaneous administration of medicines. I have understood that we have to be careful about four factors while the medication administration, that is the technique, route of administration, the site of administration and the equipments used. As per the nursing standard 6.6, as a registered nurse I should be able to withhold or administer in context of the condition of the patient. I have administered the medicine at an angle of 45 degree by pinching the skin, although 90 degree angle is more preferable in case of subcutaneous medicine. I believe that I have maintained asceptic technique throughout the procedure for avoiding infections, as per the nursing standard 6.4. . Infections during application of injections increase the chance of blood borne infections and may increase the patient complicacy. According to Pourghaznein et al., (2014), the site of administration must correlate with the route of admini stration and the condition of the patient. This patient had just undergone an umbilical hernia surgery hence the site of injection would certainly not be the belly. I have tried my best to the safety protocols of medication administration as it is an integral part of my profession and also in compliance with the nursing standard 1.4 (Nursing-and-Midwifery-Board of Australia, 2018). However there has been a mistake from my part as I would have kept the medicine for 10 seconds before removing. As per the nursing standard, 6.5, timing is important in the administration of medicines. The nursing professional standard 7.1 states that it is necessary to evaluate the practice management, which in this case I have accomplished by obtaining feedback from the tutor and my peers. As per the nursing standard 1.7, I should continuously strive for the quality improvement of my care by applying an evidence based research (standard 1.7). I plan to be more confident in the future practices. I believe that I have worked as per the medication application guidelines, which is very important for developing the professional standard among the nurses. While administering the injection I made sure, that I abide by the standard 1.1 of NMBA, by ensuring a safe quality practice while administering the medicine (Nursing-and-Midwifery-Board of Australia, 2018). I understood that nurses are responsible for safe medication administration and prevent complexities. A small mistake in techniques may lead to life threatening conditions. I have understood that there are certain precautions that have to be taken before the administration of the injection, which is in accordance to the standard 6.1 of the NMBA standards like cross checking of the prescriptions, correct dosages and the route of administration of the medicines. I was mindful in doing the hand washing using water and soap for avoiding infections. I was well aware while pinching the skin of the patient as elevating or pinching of the skin may increase the risks of injury. The needle might pierce the opposite side of the skin folds and may enter the skin of the health care workers. As a nurse I made it sure that I check the past medical histories, as it may influence the application of injections. Medical history includes renal impairment, insulin resistance, sex, age as it helps to mitigate complications in patient and helps the registered nurse to be in compliance with the nursing standard 6.6. I have understood that a proper clinical environment actually serves as a potential environment of learning. Evidence based practice is used by the nurses for providing a higher quality of care (Wehba et al., 2013). It about integrating the best available evidence with clinical experiences for an appropriate decision making process. According to (Nursing-and-Midwifery-Board of Australia, 2018), it is the basic right of the patient to receive safe care and it is the duty of the health care professionals to use the strongest existing evidences to provide care to the patient. I have realized that for becoming a competent nurse I would have to decide, what type of a learner I am and will be able to reflect upon my clinical skills, since I believe that as a responsible nurse I would be able to reflect on my experience and check how they are going to shape my future practice, which is again the core value of the nursing standard 6.1. I have understood that analysis and self awareness is one of the crucial aspects of reflection. Self regulation helps us to control our own action, creating less vulnerable situations. According to the NMBA codes of nursing conduct, a nurse always keeps the interest of the patient in the forefront (Nursing-and-Midwifery-Board of Australia, 2018). It is extremely essential for a nurse to understand his own learning style. As a student I should always remain motivated such that the mentor or the nurse educator will also be motivated to encourage my learning. I have understood that I am a kinesthetic learner that requires hand on a ctivities for going in to the depth of any topic, incompliance with standard that states that a registered nurse would be able to monitor and evaluate the progress towards better outcomes (Standard 7.1). My professional standards would describe my competent level of care in each phase of medication administration, which would reflect and desired an achievable level of performance. Conclusion Personal understanding and insight has helped to develop my interpersonal skills. This practice has not only boosted up my clinical skills but has also removed the fear from my mind regarding the administration of an injection. This practice has also initiated the use of evidence based research in my practice as I have researched a lot about the subcutaneous injections. It has also helped me to understand that my style of learning I kinesthetic learning as I gain knowledge by hand on practices. Finally, the experience has fostered a confidence level in me that I would not repeat the same mistakes ever again. As a part of my action plan I ensure that I would observe my educators carefully and should try to incorporate those in to future practice. I would try to maintain a reflective journal where I would be able to evaluate my performance that would help me to incorporate the nursing standard 1.2 within my actions. As stated by Bastable, (2003), nurses excel in their practice by practicing self reflection and self evaluation . I believe that lifelong learning and would hence constantly strive to remain updated with the recent advancements regarding the legislation, guidelines and the policies relevant to nursing and apply evidence based practice in care. Finally I would excel in the medication application and clinical reasoning as it would improve my practice and would help me to abide by the six rights of medication administration. In order to remove my nervousness, I would like to encounter difficult situations where I can apply my learning strategies; hence I always prefer experimental learning. The feedback collected from the patient and my educator would help be to improve the gaps left in the future scope of practice. References Alabdulhafith, M., Sampalli, S. (2014). NFC-based Framework for Checking the Five Rights of Medication Administration. Procedia Computer Science, 37, 434-438. Bastable, S. B. (2003). Nurse as educator: Principles of teaching and learning for nursing practice. Jones Bartlett Learning. Beecher, M. D., Henry, K. (2017). Ethics and clinical research. InEthics and Medical Decision-Making(pp. 3-9). Routledge. Hutin, Y., Hauri, A., Chiarello, L., Catlin, M., Stilwell, B., Ghebrehiwet, T., Garner, J. (2013). Best infection control practices for intradermal, subcutaneous, and intramuscular needle injections. Bulletin of the World Health Organization, 81(7), 491-500. Johns, C., Freshwater, D. (Eds.). (2009). Transforming nursing through reflective practice. John Wiley Sons. Murphy, E. L., DeVita, D., Liu, H., Vittinghoff, E., Leung, P., Ciccarone, D. H., Edlin, B. R. (2012). Risk factors for skin and soft-tissue abscesses among injection drug users: a case-control study. Clinical Infectious Diseases, 33(1), 35-40. Nursing-and-Midwifery-Board of Australia. (2018). Retrieved from https://file:///C:/Users/user/Downloads/Nursing-and-Midwifery-Board---Standard---Registered-nurse-standards-for-practice---1-June-2016%20(1).PDF Pourghaznein, T., Azimi, A. V., Jafarabadi, M. A. (2014). The effect of injection duration and injection site on pain and bruising of subcutaneous injection of heparin. Journal of clinical nursing, 23(7-8), 1105-1113. Wehba, S. R., Rinda, J. E., Trohimovich, B. M., Pelletier, J. (2013). U.S. Patent No. 8,560,345. Washington, DC: U.S. Patent and Trademark Office.