Wednesday, October 30, 2019
Elisa aims and method need to be paraphrase Essay
Elisa aims and method need to be paraphrase - Essay Example This difference is made clear through the drawing of a standard curve, by making use of concentrations that are known; belonging to antibodies of Rabbit IgG. e. Incubation was done on different amounts of rabbit IgG. Micotiter plates were then cleaned by use of washing buffer, three times; and washed again after blocking them with blocking buffer. They then were refrigerated, ready for use in the practical. 1- For the monoclonal antibodies, the left half of the plate got used.As in the illustration below in a picture with blue colour; in the first column, 200ul of monoclonal mouse anti-rabbit IgG was added. 100ul of diluents buffer PBS was then filled to columns 2 and 6, for the monoclonal antibodies as in the below illustration. 2- Then, 100ul of mouse anti-rabbit got transferred from A1 to A6 inorder to have the sample diluted and from well A6 100ul of mouse anti rabbit IgG antibody thrown away. A repeat of the process was done on the rest of the
Monday, October 28, 2019
Comparison Of Rate Of Convergence Of Iterative Methods Philosophy Essay
Comparison Of Rate Of Convergence Of Iterative Methods Philosophy Essay The term iterative method refers to a wide range of techniques that use successive approximations to obtain more accurate solutions to a linear system at each step In numerical analysis it attempts to solve a problem by finding successiveà approximationsà to the solution starting from an initial guess. This approach is in contrast toà direct methods which attempt to solve the problem by a finite sequence of operations, and, in the absence ofà rounding errors, would deliver an exact solution Iterative methods are usually the only choice for non linear equations. However, iterative methods are often useful even for linear problems involving a large number of variables (sometimes of the order of millions), where direct methods would be prohibitively expensive (and in some cases impossible) even with the best available computing power. Stationary methods are older, simpler to understand and implement, but usually not as effective Stationary iterative method are the iterative methods that performs in each iteration the same operations on the current iteration vectors.Stationary iterative methods solve a linear system with anà operatorà approximating the original one; and based on a measurement of the error in the result, form a correction equation for which this process is repeated. While these methods are simple to derive, implement, and analyze, convergence is only guaranteed for a limited class of matrices. Examples of stationary iterative methods are the Jacobi method,gauss seidel methodà and theà successive overrelaxation method. The Nonstationary methods are based on the idea of sequences of orthogonal vectors Nonstationary methods are a relatively recent development; their analysis is usually harder to understand, but they can be highly effective These are the Iterative method that has iteration-dependent coefficients.It include Dense matrix: Matrix for which the number of zero elements is too small to warrant specialized algorithms. Sparse matrix: Matrix for which the number of zero elements is large enough that algorithms avoiding operations on zero elements pay off. Matrices derived from partial differential equations typically have a number of nonzero elements that is proportional to the matrix size, while the total number of matrix elements is the square of the matrix size. The rate at which an iterative method converges depends greatly on the spectrum of the coefficient matrix. Hence, iterative methods usually involve a second matrix that transforms the coefficient matrix into one with a more favorable spectrum. The transformation matrix is called aà preconditioner. A good preconditioner improves the convergence of the iterative method, sufficiently to overcome the extra cost of constructing and applying the preconditioner. Indeed, without a preconditioner the iterative method may even fail to converge. Rate of Convergence Inà numerical analysis, the speed at which aà convergent sequenceà approaches its limit is called theà rate of convergence. Although strictly speaking, a limit does not give information about any finite first part of the sequence, this concept is of practical importance if we deal with a sequence of successive approximations for anà iterative method as then typically fewer iterations are needed to yield a useful approximation if the rate of convergence is higher. This may even make the difference between needing ten or a million iterations.Similar concepts are used forà discretizationà methods. The solution of the discretized problem converges to the solution of the continuous problem as the grid size goes to zero, and the speed of convergence is one of the factors of the efficiency of the method. However, the terminology in this case is different from the terminology for iterative methods. The rate of convergence of an iterative method is represented by mu (ÃŽà ¼) and is defined as such:à Suppose the sequence{xn}à (generated by an iterative method to find an approximation to a fixed point) converges to a pointà x, thenà limn->[infinity] = |xn+1-x|/|xn-x|[alpha]=ÃŽà ¼,à whereà ÃŽà ¼Ã ¢Ã¢â¬ °Ã ¥0 andà ÃŽà ±(alpha)=order of convergence.à In cases whereà ÃŽà ±=2 or 3 the sequence is said to haveà quadraticà andà cubic convergenceà respectively. However in linear cases i.e. whenà ÃŽà ±=1, for the sequence to convergeà ÃŽà ¼Ã mustà be in the interval (0,1). The theory behind this is that for En+1à ¢Ã¢â¬ °Ã ¤ÃŽà ¼Enà to converge the absolute errors must decrease with each approximation, and to guarantee this, we have to setà 0 In cases whereà ÃŽà ±=1 andà ÃŽà ¼=1à andà you know it converges (sinceà ÃŽà ¼=1 does not tell us if it converges or diverges) the sequenceà {xn}à is said to convergeà sublinearlyà i.e. the order of convergence is less than one. Ifà ÃŽà ¼>1 then the sequence diverges. Ifà ÃŽà ¼=0 then it is said to convergeà superlinearlyà i.e. its order of convergence is higher than 1, in these cases you changeà ÃŽà ±Ã to a higher value to find what the order of convergence is.à In cases whereà ÃŽà ¼Ã is negative, the iteration diverges. Stationary iterative methods Stationary iterative methods are methods for solving aà linear system of equations. Ax=B. whereà à is a given matrix andà à is a given vector. Stationary iterative methods can be expressed in the simple form where neitherà à norà à depends upon the iteration countà . The four main stationary methods are the Jacobi Method,Gauss seidel method,à successive overrelaxation methodà (SOR), andà symmetric successive overrelaxation methodà (SSOR). 1.Jacobi method:- The Jacobi method is based on solving for every variable locally with respect to the other variables; one iteration of the method corresponds to solving for every variable once. The resulting method is easy to understand and implement, but convergence is slow. The Jacobi method is a method of solving aà matrix equationà on a matrix that has no zeros along its main diagonal . Each diagonal element is solved for, and an approximate value plugged in. The process is then iterated until it converges. This algorithm is a stripped-down version of the Jacobi transformationà method ofà matrix diagnalization. The Jacobi method is easily derived by examining each of theà à equations in the linear system of equationsà à in isolation. If, in theà th equation solve for the value ofà à while assuming the other entries ofà à remain fixed. This gives which is the Jacobi method. In this method, the order in which the equations are examined is irrelevant, since the Jacobi method treats them independently. The definition of the Jacobi method can be expressed with matricesà as where the matricesà ,à , andà à represent the diagnol, strictly lower triangular, andà strictly upper triangularà parts ofà , respectively Convergence:- The standard convergence condition (for any iterative method) is when theà spectral radiusà of the iteration matrix à à (Dà à ¢Ãâ ââ¬â¢ 1R) D is diagonal component,R is the remainder. The method is guaranteed to converge if the matrixà Aà is strictly or irreduciblyà diagonally dominant. Strict row diagonal dominance means that for each row, the absolute value of the diagonal term is greater than the sum of absolute values of other terms: The Jacobi method sometimes converges even if these conditions are not satisfied. 2. Gauss-Seidel method:- The Gauss-Seidel method is like the Jacobi method, except that it uses updated values as soon as they are available. In general, if the Jacobi method converges, the Gauss-Seidel method will converge faster than the Jacobi method, though still relatively slowly. The Gauss-Seidel method is a technique for solving theà à equations of theà linear system of equationsà à one at a time in sequence, and uses previously computed results as soon as they are available, There are two important characteristics of the Gauss-Seidel method should be noted. Firstly, the computations appear to be serial. Since each component of the new iterate depends upon all previously computed components, the updates cannot be done simultaneously as in theà Jacobi method. Secondly, the new iterateà à depends upon the order in which the equations are examined. If this ordering is changed, theà componentsà of the new iterates (and not just their order) will also change. In terms of matrices, the definition of the Gauss-Seidel method can be expressed as where the matricesà ,à , andà à represent theà diagonal, strictly lower triangular, and strictly upper triangularà parts ofà A, respectively. The Gauss-Seidel method is applicable to strictly diagonally dominant, or symmetric positive definite matricesà A. Convergence:- Given a square system ofà nà linear equations with unknownà x: The convergence properties of the Gauss-Seidel method are dependent on the matrixà A. Namely, the procedure is known to converge if either: Aà is symmetricà positive definite, or Aà is strictly or irreduciblyà diagonally dominant. The Gauss-Seidel method sometimes converges even if these conditions are not satisfied. 3.Successive Overrelaxation method:- The successive overrelaxation method (SOR) is a method of solving aà linear system of equationsà à derived by extrapolating theà gauss-seidel method. This extrapolation takes the form of a weighted average between the previous iterate and the computed Gauss-Seidel iterate successively for each component, whereà à denotes a Gauss-Seidel iterate andà à is the extrapolation factor. The idea is to choose a value forà à that will accelerate the rate of convergence of the iterates to the solution. In matrix terms, the SOR algorithm can be written as where the matricesà ,à , andà à represent the diagonal, strictly lower-triangular, and strictly upper-triangular parts ofà , respectively. Ifà , the SOR method simplifies to theà gauss-seidel method. A theorem due to Kahan shows that SOR fails to converge ifà à is outside the intervalà . In general, it is not possible to compute in advance the value ofà à that will maximize the rate of convergence of SOR. Frequently, some heuristic estimate is used, such asà à whereà à is the mesh spacing of the discretization of the underlying physical domain. Convergence:- Successive Overrelaxation method may converge faster than Gauss-Seidel by an order of magnitude. We seek the solution to set of linear equationsà In matrix terms, the successive over-relaxation (SOR) iteration can be expressed as whereà ,à , andà à represent the diagonal, lower triangular, and upper triangular parts of the coefficient matrixà ,à à is the iteration count, andà à is a relaxation factor. This matrix expression is not usually used to program the method, and an element-based expression is used Note that forà à that the iteration reduces to theà gauss-seidelà iteration. As with theà Gauss seidel method, the computation may be done in place, and the iteration is continued until the changes made by an iteration are below some tolerance. The choice of relaxation factor is not necessarily easy, and depends upon the properties of the coefficient matrix. For symmetric, positive definite matrices it can be proven thatà à will lead to convergence, but we are generally interested in faster convergence rather than just convergence. 4.Symmetric Successive overrelaxation:- Symmetric Successive Overrelaxation (SSOR) has no advantage over SOR as a stand-alone iterative method; however, it is useful as a preconditioner for nonstationary methods The symmetric successive overrelaxation (SSOR) method combines twoà successive overrelaxation methodà (SOR) sweeps together in such a way that the resulting iteration matrix is similar to a symmetric matrix it the case that the coefficient matrixà à of the linear systemà à is symmetric. The SSOR is a forward SOR sweep followed by a backward SOR sweep in which theà unknownsà are updated in the reverse order. The similarity of the SSOR iteration matrix to a symmetric matrix permits the application of SSOR as a preconditioner for other iterative schemes for symmetric matrices. This is the primary motivation for SSOR, since the convergence rate is usually slower than the convergence rate for SOR with optimalà .. Non-Stationary Iterative Methods:- 1.Conjugate Gradient method:- The conjugate gradient method derives its name from the fact that it generates a sequence of conjugate (or orthogonal) vectors. These vectors are the residuals of the iterates. They are also the gradients of a quadratic functional, the minimization of which is equivalent to solving the linear system. CG is an extremely effective method when the coefficient matrix is symmetric positive definite, since storage for only a limited number of vectors is required. Suppose we want to solve the followingà system of linear equations Axà =à b where theà n-by-nà matrixà Aà isà symmetricà (i.e.,à ATà =à A),à positive definiteà (i.e.,à xTAxà > 0 for all non-zero vectorsà xà inà Rn), andà real. We denote the unique solution of this system byà x*. We say that two non-zero vectorsà uà andà và areà conjugateà (with respect toà A) if Sinceà Aà is symmetric and positive definite, the left-hand side defines anà inner product So, two vectors are conjugate if they are orthogonal with respect to this inner product. Being conjugate is a symmetric relation: ifà uà is conjugate toà v, thenà và is conjugate toà u. Convergence:- Accurate predictions of the convergence of iterative methods are difficult to make, but useful bounds can often be obtained. For the Conjugate Gradient method, the error can be bounded in terms of the spectral condition numberà à of the matrixà . ( ifà à andà à are the largest and smallest eigenvalues of a symmetric positive definite matrixà , then the spectral condition number ofà à isà . Ifà à is the exact solution of the linear systemà , with symmetric positive definite matrixà , then for CG with symmetric positive definite preconditionerà , it can be shown that whereà à , and à . From this relation we see that the number of iterations to reach a relative reduction ofà à in the error is proportional toà . In some cases, practical application of the above error bound is straightforward. For example, elliptic second order partial differential equations typically give rise to coefficient matricesà à withà à (whereà à is the discretization mesh width), independent of the order of the finite elements or differences used, and of the number of space dimensions of the problem . Thus, without preconditioning, we expect a number of iterations proportional toà à for the Conjugate Gradient method. Other results concerning the behavior of the Conjugate Gradient algorithm have been obtained. If the extremal eigenvalues of the matrixà à are well separated, then one often observes so-called; that is, convergence at a rate that increases per iteration. This phenomenon is explained by the fact that CG tends to eliminate components of the error in the direction of eigenvectors associated with extremal eigenvalues first. After these have been eliminated, the method proceeds as if these eigenvalues did not exist in the given system,à i.e., the convergence rate depends on a reduced system with a smaller condition number. The effectiveness of the preconditioner in reducing the condition number and in separating extremal eigenvalues can be deduced by studying the approximated eigenvalues of the related Lanczos process. 2. Biconjugate Gradient Method-The Biconjugate Gradient method generates two CG-like sequences of vectors, one based on a system with the original coefficient matrix , and one on . Instead of orthogonalizing each sequence, they are made mutually orthogonal, or bi-orthogonal. This method, like CG, uses limited storage. It is useful when the matrix is nonsymmetric and nonsingular; however, convergence may be irregular, and there is a possibility that the method will break down. BiCG requires a multiplication with the coefficient matrix and with its transpose at each iteration. Convergence:- Few theoretical results are known about the convergence of BiCG. For symmetric positive definite systems the method delivers the same results as CG, but at twice the cost per iteration. For nonsymmetric matrices it has been shown that in phases of the process where there is significant reduction of the norm of the residual, the method is more or less comparable to full GMRES (in terms of numbers of iterations). In practice this is often confirmed, but it is also observed that the convergence behavior may be quite irregularà , and the method may even break downà . The breakdown situation due to the possible event thatà à can be circumvented by so-called look-ahead strategies. This leads to complicated codes. The other breakdownà à situation,à , occurs when theà -decomposition fails, and can be repaired by using another decomposition. Sometimes, breakdownà à or near-breakdown situations can be satisfactorily avoided by a restartà à at the iteration step immediately before the breakdown step. Another possibility is to switch to a more robust method, like GMRES.à à 3. Conjugate Gradient Squared (CGSà ). The Conjugate Gradient Squared method is a variant of BiCG that applies the updating operations for the -sequence and the -sequences both to the same vectors. Ideally, this would double the convergence rate, but in practice convergence may be much more irregular than for BiCG, which may sometimes lead to unreliable results. A practical advantage is that the method does not need the multiplications with the transpose of the coefficient matrix. often one observes a speed of convergence for CGS that is about twice as fast as for BiCG, which is in agreement with the observation that the same contraction operator is applied twice. However, there is no reason that the contraction operator, even if it really reduces the initial residualà , should also reduce the once reduced vectorà . This is evidenced by the often highly irregular convergence behavior of CGSà . One should be aware of the fact that local corrections to the current solution may be so large that cancelation effects occur. This may lead to a less accurate solution than suggested by the updated residual. The method tends to diverge if the starting guess is close to the solution.à à 4 Biconjugate Gradient Stabilized (Bi-CGSTABà ). The Biconjugate Gradient Stabilized method is a variant of BiCG, like CGS, but using different updates for the -sequence in order to obtain smoother convergence than CGS. Bi-CGSTAB often converges about as fast as CGS, sometimes faster and sometimes not. CGS can be viewed as a method in which the BiCG contraction operator is applied twice. Bi-CGSTAB can be interpreted as the product of BiCG and repeatedly applied GMRES. At least locally, a residual vector is minimizedà , which leads to a considerably smootherà à convergence behavior. On the other hand, if the local GMRES step stagnates, then the Krylov subspace is not expanded, and Bi-CGSTAB will break downà . This is a breakdown situation that can occur in addition to the other breakdown possibilities in the underlying BiCG algorithm. This type of breakdown may be avoided by combining BiCG with other methods,à i.e., by selecting other values forà à One such alternative is Bi-CGSTAB2à ; more general approaches are su ggested by Sleijpen and Fokkema. 5..Chebyshevà Iteration. The Chebyshev Iteration recursively determines polynomials with coefficients chosen to minimize the norm of the residual in a min-max sense. The coefficient matrix must be positive definite and knowledge of the extremal eigenvalues is required. This method has the advantage of requiring no inner products. Chebyshev Iteration is another method for solving nonsymmetric problems . Chebyshev Iteration avoids the computation of inner productsà à as is necessary for the other nonstationary methods. For some distributed memory architectures these inner products are a bottleneckà à with respect to efficiency. The price one pays for avoiding inner products is that the method requires enough knowledge about the spectrum of the coefficient matrixà à that an ellipse enveloping the spectrum can be identifiedà ; however this difficulty can be overcome via an adaptive constructionà developed by Manteuffelà , and implemented by Ashbyà . Chebyshev iteration is suitable for any non symmetric linear system for which the enveloping ellipse does not include the origin. Convergence:- In the symmetric case (whereà à and the preconditionerà à are both symmetric) for the Chebyshev Iteration we have the same upper bound as for the Conjugate Gradient method, providedà à andà à are computed fromà à andà à (the extremal eigenvalues of the preconditioned matrixà ). There is a severe penalty for overestimating or underestimating the field of values. For example, if in the symmetric caseà à is underestimated, then the method may diverge; if it is overestimated then the result may be very slow convergence. Similar statements can be made for the nonsymmetric case. This implies that one needs fairly accurate bounds on the spectrum ofà à for the method to be effective (in comparison with CG or GMRES).à à Acceleration of convergence Many methods exist to increase the rate of convergence of a given sequence, i.e. to transform a given sequence into one converging faster to the same limit. Such techniques are in general known as series acceleration. The goal of the transformed sequence is to be much less expensive to calculate than the original sequence. One example of series acceleration is Aitkens delta -squared process.
Friday, October 25, 2019
The most unkind cut :: essays research papers
What if I were to tell you that a new trend is being practiced in the United States by the parents of newborn baby boys, wherein they are giving the children nose jobs so that they can look more like their father, or that the parents are cutting off the earlobes of the babes so that they can be cleaner? What if you had just given birth to a beautiful, cooing baby girl and the nurse walked in and cheerfully asked if youà ¢Ã¢â ¬Ã¢â ¢d like to mutilate her genitalia before her noon feeding. In either one of those situations, no doubt youà ¢Ã¢â ¬Ã¢â ¢d be disbelieving and outraged at such a suggestion! But everyday thousands of babies across the United States suffer a similar fate when their parents decide that a baby boy should not have a foreskin and so they practice routine circumcision. Circumcision, put simply, is cosmetic surgery, in that it involves changing the appearance of your childà ¢Ã¢â ¬Ã¢â ¢s body for aesthetic reasons. à à à à à The United States is the only country in the world that routinely practices the circumcision of their newborns. Across the globe elsewhere, circumcision is rarely practiced unless there is a medical or religious reason to do so. Here in the U.S., the vast majority of parents opt to have the procedure done, although the number of parents refusing the pointless procedure is on a rapid rise. Most parents typically donà ¢Ã¢â ¬Ã¢â ¢t think about circumcision as an issue while they shop for cribs and have baby showers and select namesà ¢Ã¢â ¬Ã ¦ità ¢Ã¢â ¬Ã¢â ¢s just something you à ¢Ã¢â ¬Ã
âdoà ¢Ã¢â ¬? if you have a son, so when asked in the hospital after the delivery if they want their child circumcised, they blindly accept the procedure without questioning ità ¢Ã¢â ¬Ã¢â ¢s purpose. However, in the future when asked why they decided to go through with it, the most common reasons given to justify the procedure might surprise you. à à à à à When asking my friends why they decided to circumcise their sons, the most common reasoning is that so the child can à ¢Ã¢â ¬Ã
âlook like daddy.à ¢Ã¢â ¬? They donà ¢Ã¢â ¬Ã¢â ¢t want the child to feel or look different than his father, brother or peers and be teased. Is this really a problem? Do men really sit around comparing how they look and then teasing the ones who look different? No, of course not. And what sort of justification is this anyway, to look like their daddy. Nobody will ever walk up and say, à ¢Ã¢â ¬Ã
âOh how cuteà ¢Ã¢â ¬Ã ¦.
Thursday, October 24, 2019
Business and technology Essay
The second issue centered on the impact of distance-delivery on the effectiveness of health care. The third issue involved a determination of the effects that the use of electronic communications have on health care delivery today. The fourth issue required a projection of the likely affects that the continued use of electronic communications will have on health care delivery. These interrelated issues are addressed in separate discussions in this paper. Electronic Communications as an External Delivery Mechanism When considering the ways in which electronic communications may be applied effectively as an external delivery mechanism in the communication of patient- pecific information, it is useful to first (a) identify the parties who will likely be involved in such interchanges and to (b) determine the types of information most likely to be exchanged. Further, depending upon of types of information likely to be exchanged it is also useful to consider how and in what form such information is developed (Committee on Redesigning Health Insurance Performance Measures, Payment, and Performance Improvement Programs, 2006; Committee on Public Health Strategies to Improve Health Board on Population Health and Public Health Practice, 2012; World Health Organization, 2008). The party-pairs most likely to be involved in electronic communications exchanges are (a) provider-to-patient, (b) patient-to-provider, (c) provider-to-provider, and (d) provider-to-parties other than patients and other providers (Committee on Redesigning Health Insurance Performance Measures, Payment, and Performance Improvement Programs, 2006; Committee on Public Health Strategies to Improve Health Board on Population Health and Public Health Practice, 2012; World Health Organization, 2008). In these instances especially so in provider-to-parties other than patients and other providers, the ssues of patient privacy and the integrity of patient-specific data must be an important tocal point (McGraw, 2 The types ot patient-specific intormation likely to be exchanged between providers and patients, regardless of the direction of the initial contract in such exchanges, are (a) patient symptoms and concerns, (b) provider care directions and queries to patients concerning their clinical conditions. The types of patient-specific information most likely to be exchanged among providers are (a) requests for the conduct of examinations and other procedures and b) consultations concerning the appropriate treatment protocols for specific patients. The types of patient-specific information most likely to be exchanged between providers and parties other than patients and other providers are (a) patient-specific data required by administrative personnel for scheduling and billing purposes and (b) patient specific data required by health care funders for purposes of specific treatment authorizations (Committee on Redesigning Health Insurance and Public Health Practice, 2012; World Health Organization, 2008).
Wednesday, October 23, 2019
Eva’s Print Shop
Evaââ¬â¢s ââ¬â ââ¬â Print Shop: tripled bottom line operates as a social business and a corporate structure divided in terms of itââ¬â¢s two businesses some horizontal connection between the teams but not a clear functional structure hybrid between functional and divisional innovative features: social business (mohamed yunous) ââ¬â integrating the production (commercial) and the teaching (social) business side ââ¬â bringing in money to sustain the organization social side 2002 ââ¬â they used to be funded by federal grants BUT caveat w. overnment funding required the trainees to be paidâ⬠¦ issue: these are homeless youth and they are being taken off the streets ââ¬â giving them homes and are taught basic survival skills on how to live, and take care of themselves any kind of not for profit formula has strict guidelines which is why they switched because it was counter intuitive to the social goal. Case: Who: (names and position): ââ¬â Andrew Macdo nald and the Advisory Board (primary stakeholders) ââ¬â Evaââ¬â¢s initiatives What: (Key Issues): ââ¬â Whether or not to expand and if so how Why: (Root Causes): Funding Will the business side fund the social side?Need to help more at risk youth is pressing ââ¬â growing problem When (Timeline): ââ¬â No, just as it works for the company ââ¬â Changing the funding has put some constraints on the economic business, BEP Analysis: (application of course concepts, models, theories): ââ¬â Performance: changing in funding formula away from government funding was made after 2005 strategic review ââ¬â allowed Evaââ¬â¢s Phoenix â⬠¦Ã¢â¬ ¦.. How did this impact its organizational design?Strategy: integration of its social and commercial elements of the enterprise ââ¬â triple bottom line, includes environmental ââ¬â uses Bullfrog Power Models: ââ¬â triple-bottom line ââ¬â effectiveness measures: goal approach ââ¬â internal process model: h ow does the training side interact with the commercial side? How are conflicts resolved? resource model: by choosing bullfrog power, they may be paying more for their power but using homeless youth ââ¬â they may be comprising their efficiency and quality ââ¬â Balancing Act between the 2 ââ¬â Professionalism ââ¬â more professional youââ¬â¢re staff, the more you have to pay them Decision Criteria 1. ncrease youth participation 2. increase efficiency on the economic business side 3. feasibility and funding 4. keeping or increasing the synergy 5. no compromise the social or environmental objectives for the business objectives 6. complexity in the design structure 7. maintaining your volunteers Alternatives: 1. Keep the structure the same but tweak it, make economic more efficient (incremental efficiencies) 2. Grow the business using the same structure ââ¬â just bigger 3. Grow geographically ââ¬â replicating the model in different cities where there is a simila r need 4.Separate the print shop and the social initiatives Evaluation of Alternatives 1. Incremental efficiencies will allow for more professionalism and customer focus ââ¬â some basic training before anyone works in the print shop handling customer materials ââ¬â meets a, b, c & d 2. Growing theâ⬠¦ Recommendation/Implementation/contingency ââ¬â finding a suitable location ââ¬â must find advisory board and volunteers ââ¬â securing funding to run a similar operation ââ¬â finance volunteer ââ¬â finding customers and sales volunteer ââ¬â onnecting with volunteer agency in the designated city to source homeless youth and discuses details on how to manage the process hiring staff with the expertise needed to run both the print side and the social side create and accountability Constrains ââ¬â Budgetary issues ââ¬â Timelines Downside Risk: ââ¬â Failure of program ââ¬â volunteer not committed ââ¬â Not find youth who are interested in staying and learning new skills ââ¬â Not enough customers Contingency: partnering with a local social agency and try to implement the program using their infrastructure and recourse while providing your expertise
Tuesday, October 22, 2019
200 Essays
Personal Ethics Gen/200 Essays Personal Ethics Gen/200 Paper Personal Ethics Gen/200 Paper Welcome to WritePoint, the automated review system that recognizes errors most commonly made by university students in academic essays. The system embeds comments into your paper and suggests possible changes in grammar and style. Please evaluate each comment carefully to ensure that the suggested change is appropriate for your paper, but remember that your instructors preferences for style and format prevail. You will also need to review your own citations and references since WritePoint capability in this area is limited. NOTE: WritePoint comments are computer-generated writing and grammar suggestions inviting the consideration and analysis of the writer; they are not infallible statements of right/wrong, and they should not be used as grading elements. Also, at present, WritePoint cannot detect quotations or block-quotes, so comments in those areas should be ignored. For additional assistance, please visit our WritePoint Lab to speak with a tutor. During th e lab, the tutor addresses common WritePoint grammar and style errors, offers editing advice for students who use WritePoint, and takes student questions. A link to the lab is located on the Live Labs homepage, which is accessible by logging into eCampus and pasting the following URL (https://ecampus.phoenix.edu/secure/aapd/CWE/LiveLabs/) into the address bar.Ethical Lens Inventory Reflection: what i learned through ethical lens inventory? [Writing suggestion: Unless in a quote or a title, avoid rhetorical questions in academic writing. A good idea is to provide answers, not questions] Rights and Responsibility lens.Before i started this class i had no idea how ethics and teams related to college success. I [Avoid use of the first person (I, me, my) in academic writing unless writing about a personal experience. First person use may be allowed by the instructor. ] also had no concept of how working with a team of different lenses could improve my individual ability to work with othe rs. I
Monday, October 21, 2019
Conflicts in Solon essays
Conflicts in Solon essays In this paper, I would like to discuss the conflicts between Athenians in Solonà fs time. In order to do so, I divided the paper into three sections. In the first section, I will discuss the conflicts between peasants and aristocrats. After that, I will talk about the conflicts between aristocrats themselves. Finally, I will discuss how the political laws at that time show these situations. For the source, I would use à gThe Rise and Fall of Athens: Nine Greek Livesà h, written by Plutarch, and à gThe Constitution of Athensà h, written by Aristotle (in J.M. Moore, Ed.). This is the first section of the paper. In this section, I will talk about the conflicts between aristocrats and peasants and the solutions Solon tried to give. I will divide the section into five parts. 1. Two classes: aristocrats and peasants In Solonà fs Athens, people were divided into two classes: one rich and one poor. The rich class is called aristocrats, and the poor class is called peasants. Aristocrats only covered two percents of the population. Most of them were big landowners and had inherited wealth. Unlike nowadays, aristocrats acted as more than one groups; they also were politicians, warriors and priests. Peasants are farmers who grow things themselves and sell goods for their families and subsistence, which means not market oriented. Some peasants had land and others had not, but both of them are free citizens. There was no middle class, which means there was no social mobility; that is, a peasant is a peasant for his whole life and could not become an aristocrat no meter how much he can earn (Tr). In fact, for more accurate speaking, there were totally four income groups in Solonà fs Athens: à gThose who received an annual income of 500 measures or more of wet and dry produce, he placed in the first class and called Pentacosiomedimni. The second class consisted of men who could afford a horse, or possessed an income of 300 measures, and ...
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