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Sample records for satisfaction problem csp

  1. Constraint satisfaction problems CSP formalisms and techniques

    CERN Document Server

    Ghedira, Khaled

    2013-01-01

    A Constraint Satisfaction Problem (CSP) consists of a set of variables, a domain of values for each variable and a set of constraints. The objective is to assign a value for each variable such that all constraints are satisfied. CSPs continue to receive increased attention because of both their high complexity and their omnipresence in academic, industrial and even real-life problems. This is why they are the subject of intense research in both artificial intelligence and operations research. This book introduces the classic CSP and details several extensions/improvements of both formalisms a

  2. Comparison of knowledge, confidence in skill performance (CSP) and satisfaction in problem-based learning (PBL) and simulation with PBL educational modalities in caring for children with bronchiolitis.

    Science.gov (United States)

    Kang, Kyung-Ah; Kim, Sunghee; Kim, Shin-Jeong; Oh, Jina; Lee, Myungnam

    2015-02-01

    In most nursing curricula, simulation and problem-based learning (PBL) are used separately as individual learning methods. Nursing educators are in a unique position to improve students' clinical performance and critical thinking skills by utilizing varied educational modalities. This study attempted to compare changes in nursing students' knowledge, confidence in skill performance (CSP), and satisfaction resulting from training using three educational modalities. Data from a convenient sample of 205 senior nursing students from three nursing schools in Seoul and Chuncheon, South Korea, was obtained between September 1 and December 10, 2013. This comparison study used three groups: the PBL group, simulation with the PBL group, and the control group. For data analysis, descriptive statistics, paired t-test, one-way ANOVA, and post-hoc tests (Duncan test) were performed. No significant difference in the students' baseline knowledge of patient care for patients with bronchiolitis was found. There were significant differences in the mean scores of knowledge (F=14.718, pPBL and a combined learning method in this study suggests that it can be an effective approach in pediatric nursing practice. These results provide a much-needed template and starting point for educators introducing active learning approaches for pediatric nursing courses. Copyright © 2014 Elsevier Ltd. All rights reserved.

  3. Algorithms and ordering heuristics for distributed constraint satisfaction problems

    CERN Document Server

    Wahbi , Mohamed

    2013-01-01

    DisCSP (Distributed Constraint Satisfaction Problem) is a general framework for solving distributed problems arising in Distributed Artificial Intelligence.A wide variety of problems in artificial intelligence are solved using the constraint satisfaction problem paradigm. However, there are several applications in multi-agent coordination that are of a distributed nature. In this type of application, the knowledge about the problem, that is, variables and constraints, may be logically or geographically distributed among physical distributed agents. This distribution is mainly due to p

  4. PROBLEMS IN MEASURING CUSTOMER SATISFACTION

    OpenAIRE

    Isac Florin Lucian; Rusu Sergiu; Cureteanu Radu Silviu

    2012-01-01

    Companies that embrace client orientation are preoccupied by measuring the level of satisfaction of those who consume their products or utilizes their products. That is why, customer satisfaction has to be transposed in measurable parameters that can be understood and influenced. Nevertheless, measuring customer satisfaction involves a lot of problems.

  5. PROBLEMS IN MEASURING CUSTOMER SATISFACTION

    Directory of Open Access Journals (Sweden)

    Isac Florin Lucian

    2012-12-01

    Full Text Available Companies that embrace client orientation are preoccupied by measuring the level of satisfaction of those who consume their products or utilizes their products. That is why, customer satisfaction has to be transposed in measurable parameters that can be understood and influenced. Nevertheless, measuring customer satisfaction involves a lot of problems.

  6. Nurse Scheduling System based on Dynamic Weighted Maximal Constraint Satisfaction Problem

    Science.gov (United States)

    Hattori, Hiromitsu; Isomura, Atsushi; Ito, Takayuki; Ozono, Tadachika; Shintani, Toramatsu

    Scheduling has been an important research field in Artificial Intelligence. Because typical scheduling problems could be modeled as a Constraint Satisfaction Problem(CSP), several constraint satisfaction techniques have been proposed. In order to handle the different levels of importance of the constraints, solving a problem as a Weighted Maximal Constraint Satisfaction Problem(W-MaxCSP) is an promising approach. However, there exists the case where unexpected events are added and some sudden changes are required, i.e., the case with dynamic changes in scheduling problems. In this paper, we describe such dynamic scheduling problem as a Dynamic Weighted Maximal Constraint Satisfaction Problem(DW-MaxCSP) in which constraints would changes dynamically. Generally, it is undesirable to determine vastly modified schedule even if re-scheduling is needed. A new schedule should be close to the current one as much as possible. In order to obtain stable solutions, we propose the methodology to maintain portions of the current schedule using the provisional soft constraints, which explicitly penalize the changes from the current schedule. We have experimentally confirmed the efficacy of re-scheduling based on our method with provisional constraints. In this paper, we construct the nurse scheduling system for applying the proposed scheduling method.

  7. Relaxations of semiring constraint satisfaction problems

    CSIR Research Space (South Africa)

    Leenen, L

    2007-03-01

    Full Text Available The Semiring Constraint Satisfaction Problem (SCSP) framework is a popular approach for the representation of partial constraint satisfaction problems. In this framework preferences can be associated with tuples of values of the variable domains...

  8. A Hybrid Autonomic Computing-Based Approach to Distributed Constraint Satisfaction Problems

    Directory of Open Access Journals (Sweden)

    Abhishek Bhatia

    2015-03-01

    Full Text Available Distributed constraint satisfaction problems (DisCSPs are among the widely endeavored problems using agent-based simulation. Fernandez et al. formulated sensor and mobile tracking problem as a DisCSP, known as SensorDCSP In this paper, we adopt a customized ERE (environment, reactive rules and entities algorithm for the SensorDCSP, which is otherwise proven as a computationally intractable problem. An amalgamation of the autonomy-oriented computing (AOC-based algorithm (ERE and genetic algorithm (GA provides an early solution of the modeled DisCSP. Incorporation of GA into ERE facilitates auto-tuning of the simulation parameters, thereby leading to an early solution of constraint satisfaction. This study further contributes towards a model, built up in the NetLogo simulation environment, to infer the efficacy of the proposed approach.

  9. Model construction from orthographic views as Pseudo Boolean constraint satisfaction problem

    Energy Technology Data Exchange (ETDEWEB)

    Itoh, Kiyoshi; Suzuki, Shigemich [Sophia Univ., Tokyo (Japan)

    1996-12-31

    A surface model representation of a solid can be constructed in straightforward fashion from a set of three orthographic views. The surface model may include ghost vertexes, ghost edges and ghost faces. The authors` project, called Sophia-Alsovig, treats the problem for obtaining valid combination of surfaces and edges as Pseudo Boolean constraint satisfaction problem (CSP). It can remove such ghosts. As CSP, Sophia-Alsovig adopts a set of units consisting of edges and surfaces, a set of Boolean labels, and a set of constraints with the formulation of a collection of topological/geometrical rules for edges and surfaces by Pseudo Boolean equations. Sophia-Alsovig obtains solutions by Pseudo Boolean Nonlinear Programming.

  10. Complexity of valued constraint satisfaction problems

    CERN Document Server

    Živný, Stanislav

    2012-01-01

    The topic of this book is the following optimisation problem: given a set of discrete variables and a set of functions, each depending on a subset of the variables, minimise the sum of the functions over all variables. This fundamental research problem has been studied within several different contexts of discrete mathematics, computer science and artificial intelligence under different names: Min-Sum problems, MAP inference in Markov random fields (MRFs) and conditional random fields (CRFs), Gibbs energy minimisation, valued constraint satisfaction problems (VCSPs), and, for two-state variabl

  11. Binary Encodings of Non-binary Constraint Satisfaction Problems: Algorithms and Experimental Results

    CERN Document Server

    Samaras, N; 10.1613/jair.1776

    2011-01-01

    A non-binary Constraint Satisfaction Problem (CSP) can be solved directly using extended versions of binary techniques. Alternatively, the non-binary problem can be translated into an equivalent binary one. In this case, it is generally accepted that the translated problem can be solved by applying well-established techniques for binary CSPs. In this paper we evaluate the applicability of the latter approach. We demonstrate that the use of standard techniques for binary CSPs in the encodings of non-binary problems is problematic and results in models that are very rarely competitive with the non-binary representation. To overcome this, we propose specialized arc consistency and search algorithms for binary encodings, and we evaluate them theoretically and empirically. We consider three binary representations; the hidden variable encoding, the dual encoding, and the double encoding. Theoretical and empirical results show that, for certain classes of non-binary constraints, binary encodings are a competitive op...

  12. On Exact Algorithms for Permutation CSP

    CERN Document Server

    Kim, Eun Jung

    2012-01-01

    In the Permutation Constraint Satisfaction Problem (Permutation CSP) we are given a set of variables $V$ and a set of constraints C, in which constraints are tuples of elements of V. The goal is to find a total ordering of the variables, $\\pi\\ : V \\rightarrow [1,...,|V|]$, which satisfies as many constraints as possible. A constraint $(v_1,v_2,...,v_k)$ is satisfied by an ordering $\\pi$ when $\\pi(v_1)<\\pi(v_2)<...<\\pi(v_k)$. An instance has arity $k$ if all the constraints involve at most $k$ elements. This problem expresses a variety of permutation problems including {\\sc Feedback Arc Set} and {\\sc Betweenness} problems. A naive algorithm, listing all the $n!$ permutations, requires $2^{O(n\\log{n})}$ time. Interestingly, {\\sc Permutation CSP} for arity 2 or 3 can be solved by Held-Karp type algorithms in time $O^*(2^n)$, but no algorithm is known for arity at least 4 with running time significantly better than $2^{O(n\\log{n})}$. In this paper we resolve the gap by showing that {\\sc Arity 4 Permutati...

  13. Automatic frequency assignment for cellular telephones using constraint satisfaction techniques

    OpenAIRE

    Carlsson, Mats; Grindal, Mats

    1993-01-01

    We study the problem of automatic frequency assignment for cellular telephone systems. The frequency assignment problem is viewed as the problem to minimize the unsatisfied soft constraints in a constraint satisfaction problem (CSP) over a finite domain of frequencies involving co-channel, adjacent channel, and co-site constraints. The soft constraints are automatically derived from signal strength prediction data. The CSP is solved using a generalized graph coloring algorit...

  14. The Approximability of Learning and Constraint Satisfaction Problems

    Science.gov (United States)

    2010-10-07

    by Zwick which gives a 5/8-approximation problem for satisfiable 3-CSP. In addition, our result also conditionally resolves a fundamental open...Conjecture), we prove that it is NP-hard to give a better than 5/8-approximation for the problem. Such a result matches a SDP algorithm by Zwick which...best upper bound and lower bound for s are 20/27+² by Khot and Saket [104] and 5/8 by Zwick [141]. In this work we close the gap assuming Khot’s d-to-1

  15. PyCSP Revisited

    DEFF Research Database (Denmark)

    Vinter, Brian; Bjørndalen, John Markus; Friborg, Rune Møllegaard

    2009-01-01

    PyCSP was introduced two years ago and has since been used by a number of programmers, especially students. The original motivation behind PyCSP was a conviction that both Python and CSP are tools that are especially well suited for programmers and scientists in other fields than computer science....... Working under this premise the original PyCSP was very similar to JCSP and the motivation was simply to provide CSP to the Python community in the JCSP tradition. After two years we have concluded that PyCSP is indeed a usable tool for the target users; however many of them have raised some of the same...

  16. Problems with measuring satisfaction with social care.

    Science.gov (United States)

    Willis, Rosalind; Evandrou, Maria; Pathak, Pathik; Khambhaita, Priya

    2016-09-01

    The measurement of customer satisfaction has become widespread in both healthcare and social care services, and is informative for performance monitoring and service development. Satisfaction with social care services is routinely measured with a single question on overall satisfaction with care, comprising part of the Adult Social Care Survey. The measurement of satisfaction has been problematised, and existing satisfaction measures are known to be under-theorised. In this article, the process of making an evaluation of satisfaction with social care services is first informed by a literature review of the theoretical background, and second examined through qualitative interviews conducted in 2012-2013 with 82 service users and family carers in Hampshire, Portsmouth and Southampton. Participants in this study were from white British and South Asian backgrounds, and the influence of ethnicity in the process of satisfaction evaluation is discussed. The findings show that the majority of participants selected a positive satisfaction rating even though both positive and negative experiences with services were described in their narratives. It is recommended that surveys provide opportunity for service users and family carers to elaborate on their satisfaction ratings. This addition will provide more scope for services to review their strengths and weaknesses. © 2015 John Wiley & Sons Ltd.

  17. Case modifying of high-speed cutting database based on CSP and similarity theory

    Institute of Scientific and Technical Information of China (English)

    Kejun XIANG; Zhanqiang LIU; Xing AI

    2009-01-01

    By analyzing the reasoning of a high-speed cutting database system, a case modifying method is put forward. According to the variables' difference of the solution part in a case, a constraint satisfaction problem (CSP) and similarity calculation are used to modify a case. The constraint relationship of discrete variables is described by establishing a rule knowledge base. The algorithm of CSP is used to solve the discrete variable constraint problem. On the basis of the high-speed cutting theory, a similarity calculation formula is deduced to calculate the consecutive variables. The CSP and similarity calculation are applied to case modifying, which is possible to automatically modify cases in the high-speed cutting database system.

  18. An empirical study on collective intelligence algorithms for video games problem-solving

    OpenAIRE

    Antonio Gonzalez-Pardo; Fernando Palero; David Camacho

    2015-01-01

    Computational intelligence (CI), such as evolutionary computation or swarm intelligence methods, is a set of bio-inspired algorithms that have been widely used to solve problems in areas like planning, scheduling or constraint satisfaction problems. Constrained satisfaction problems (CSP) have taken an important attention from the research community due to their applicability to real problems. Any CSP problem is usually modelled as a constrained graph where the edges represent a set of restri...

  19. Optimization, Randomized Approximability, and Boolean Constraint Satisfaction Problems

    CERN Document Server

    Yamakami, Tomoyuki

    2011-01-01

    We give a unified treatment to optimization problems that can be expressed in the form of nonnegative-real-weighted Boolean constraint satisfaction problems. Creignou, Khanna, Sudan, Trevisan, and Williamson studied the complexity of approximating their optimal solutions whose optimality is measured by the sums of outcomes of constraints. To explore a wider range of optimization constraint satisfaction problems, following an early work of Marchetti-Spaccamela and Romano, we study the case where the optimality is measured by products of constraints' outcomes. We completely classify those problems into three categories: PO problems, NPO-hard problems, and intermediate problems that lie between the former two categories. To prove this trichotomy theorem, we analyze characteristics of nonnegative-real-weighted constraints using a variant of the notion of T-constructibility developed earlier for complex-weighted counting constraint satisfaction problems.

  20. POPULATION EMPLOYMENT AND LABOUR SATISFACTION PROBLEMS IN SENESCENT SOCIETY

    National Research Council Canada - National Science Library

    Varaksina Natalya Vladimirovna

    2012-01-01

    This paper considers the social-psychological aspects of labour relations in the context of age structure changings of Russian society, population employment and labour satisfaction of old generation problems...

  1. New Definition for Fuzzy Constraint Satisfaction Problem and its Applications

    CERN Document Server

    Ghasemiesfeh, Golnaz

    2011-01-01

    {\\it Fuzzy Constraint Satisfaction Problem} ($FCSP$) is a kind of relaxed Constraint Satisfaction Problems, which models constraints as fuzzy relations. In this paper, we introduce a new definition for $FCSP$ to show that complexity of providing a solution for a given $FCSP$ is equal to complexity of finding a solution for a corresponding given {\\it Fuzzy Graph Homomorphism Problem} ($FGHP$). In the other words, we prove that $minimorphismFCSP_{_{3}}$ is polynomially equivalent to $minFHom_{1}^{\\phantom{1}G,H}$. Furthermore, we transform these concepts to a Categorical framework and prove that the corresponding functor $F$, from category of $FCSP$s to category of $FGHP$s and the reverse functor $L$ are adjoints of each other. Finally, we show how we can use this new definition of $FCSP$ in modeling various optimization problems such as {\\it Network On Chip Problem} ($NoC$).

  2. An event-based architecture for solving constraint satisfaction problems

    Science.gov (United States)

    Mostafa, Hesham; Müller, Lorenz K.; Indiveri, Giacomo

    2015-12-01

    Constraint satisfaction problems are ubiquitous in many domains. They are typically solved using conventional digital computing architectures that do not reflect the distributed nature of many of these problems, and are thus ill-suited for solving them. Here we present a parallel analogue/digital hardware architecture specifically designed to solve such problems. We cast constraint satisfaction problems as networks of stereotyped nodes that communicate using digital pulses, or events. Each node contains an oscillator implemented using analogue circuits. The non-repeating phase relations among the oscillators drive the exploration of the solution space. We show that this hardware architecture can yield state-of-the-art performance on random SAT problems under reasonable assumptions on the implementation. We present measurements from a prototype electronic chip to demonstrate that a physical implementation of the proposed architecture is robust to practical non-idealities and to validate the theory proposed.

  3. PyCSP - controlled concurrency

    DEFF Research Database (Denmark)

    Vinter, Brian; Friborg, Rune Møllegaard; Bjørndalen, John Markus

    2010-01-01

    Producing readable and correct programs while at the same time taking advantage of multi-core architectures is a challenge. PyCSP is an implementation of Communicating Sequential Processes algebra (CSP) for the Python programming language, that take advantage of CSP's formal and verifiable approach...... to controlling concurrency and the readability of Python source code. We describe PyCSP, demonstrate it through examples and demonstrate how PyCSP compares to Pthreads in a master-worker benchmark....

  4. Constraint satisfaction problems in clausal form

    CERN Document Server

    Kullmann, Oliver

    2011-01-01

    This is the report-version of a mini-series of two articles on the foundations of satisfiability of conjunctive normal forms with non-boolean variables, to appear in Fundamenta Informaticae, 2011. These two parts are here bundled in one report, each part yielding a chapter. Generalised conjunctive normal forms are considered, allowing literals of the form "variable not-equal value". The first part sets the foundations for the theory of autarkies, with emphasise on matching autarkies. Main results concern various polynomial time results in dependency on the deficiency. The second part considers translations to boolean clause-sets and irredundancy as well as minimal unsatisfiability. Main results concern classification of minimally unsatisfiable clause-sets and the relations to the hermitian rank of graphs. Both parts contain also discussions of many open problems.

  5. Modeling and solving semiring constraint satisfaction problems by transformation to weighted semiring Max-SAT

    CSIR Research Space (South Africa)

    Leenen, L

    2007-12-01

    Full Text Available The authors present a variant of the Weighted Maximum Satisfiability Problem (Weighted Max-SAT), which is a modeling of the Semiring Constraint Satisfaction framework. They show how to encode a Semiring Constraint Satisfaction Problem (SCSP...

  6. Cold shock genes cspA and cspB from Caulobacter crescentus are posttranscriptionally regulated and important for cold adaptation.

    Science.gov (United States)

    Mazzon, Ricardo R; Lang, Elza A S; Silva, Carolina A P T; Marques, Marilis V

    2012-12-01

    Cold shock proteins (CSPs) are nucleic acid binding chaperones, first described as being induced to solve the problem of mRNA stabilization after temperature downshift. Caulobacter crescentus has four CSPs: CspA and CspB, which are cold induced, and CspC and CspD, which are induced only in stationary phase. In this work we have determined that the synthesis of both CspA and CspB reaches the maximum levels early in the acclimation phase. The deletion of cspA causes a decrease in growth at low temperature, whereas the strain with a deletion of cspB has a very subtle and transient cold-related growth phenotype. The cspA cspB double mutant has a slightly more severe phenotype than that of the cspA mutant, suggesting that although CspA may be more important to cold adaptation than CspB, both proteins have a role in this process. Gene expression analyses were carried out using cspA and cspB regulatory fusions to the lacZ reporter gene and showed that both genes are regulated at the transcriptional and posttranscriptional levels. Deletion mapping of the long 5'-untranslated region (5'-UTR) of each gene identified a common region important for cold induction, probably via translation enhancement. In contrast to what was reported for other bacteria, these cold shock genes have no regulatory regions downstream from ATG that are important for cold induction. This work shows that the importance of CspA and CspB to C. crescentus cold adaptation, mechanisms of regulation, and pattern of expression during the acclimation phase apparently differs in many aspects from what has been described so far for other bacteria.

  7. Decentralized Constraint Satisfaction

    CERN Document Server

    Duffy, K R; Leith, D J

    2011-01-01

    Constraint satisfaction problems (CSPs) lie at the heart of many modern industrial and commercial tasks. An important new collection of CSPs has recently been emerging that differ from classical problems in that they impose constraints on the class of algorithms that can be used to solve them. In computer network applications, these constraints arise as the variables within the CSP are located at physically distinct devices that cannot communicate. At each instant, every variable only knows if all its constraints are met or at least one is not. Consequently, the CSP's solution must be found using a decentralized approach. Existing algorithms for solving CSPs are either centralized or distributed, both of which violate these algorithmic constraints. In this article we present the first algorithm for solving CSPs that fulfills these new requirements. It is fully decentralized, making no use of a centralized controller or message-passing between variables. We prove that this algorithm converges with probability ...

  8. PyCSP - controlled concurrency

    DEFF Research Database (Denmark)

    Friborg, Rune Møllegaard; Vinter, Brian; Bjørndalen, John Markus

    Producing readable and correct programs while at the same time taking advantage of multi-core architectures is a challenge. PyCSP is an implementation of Communicating Sequential Processes algebra (CSP) for the Python programming language, taking advantage of CSP’s formal and verifiable approach...... to controlling concurrency and the readability of Python source code. We describe PyCSP, demonstrate it through examples and demonstrate how PyCSP compares to Pthreads using a benchmark....

  9. Interactive Configuration of High Performance Renovation of Apartment Buildings by the use of CSP

    DEFF Research Database (Denmark)

    Vareilles, E.; Thuesen, Christian; Falcon, M.

    2013-01-01

    This paper is a prospective study which looks at the possibility of configuring high performance renovation of apartment buildings by the use of constraint satisfaction problem (CSP). This study is one part of a project called CRIBA which aims to industrialize high performance thermal renovation...... of mid-rise (up to seven stories) apartment buildings. The renovation is based on external rectangular panels, always comprising insulation and cladding, and sometimes including, in addition, doors, windows or solar modules. The panels can be fixed directly onto the walls or onto a metal structure around...... the whole building. With the new thermal envelope and equipment, the building must achieve a really low energy performance of 25 kWh=m2=year. A configuration system, based on CSP approaches, will simultaneously enable the interactive definition of the renovation, the associated bill of material (BOM...

  10. A green vehicle routing problem with customer satisfaction criteria

    Science.gov (United States)

    Afshar-Bakeshloo, M.; Mehrabi, A.; Safari, H.; Maleki, M.; Jolai, F.

    2016-08-01

    This paper develops an MILP model, named Satisfactory-Green Vehicle Routing Problem. It consists of routing a heterogeneous fleet of vehicles in order to serve a set of customers within predefined time windows. In this model in addition to the traditional objective of the VRP, both the pollution and customers' satisfaction have been taken into account. Meanwhile, the introduced model prepares an effective dashboard for decision-makers that determines appropriate routes, the best mixed fleet, speed and idle time of vehicles. Additionally, some new factors evaluate the greening of each decision based on three criteria. This model applies piecewise linear functions (PLFs) to linearize a nonlinear fuzzy interval for incorporating customers' satisfaction into other linear objectives. We have presented a mixed integer linear programming formulation for the S-GVRP. This model enriches managerial insights by providing trade-offs between customers' satisfaction, total costs and emission levels. Finally, we have provided a numerical study for showing the applicability of the model.

  11. Quiet planting in the locked constraints satisfaction problems

    Energy Technology Data Exchange (ETDEWEB)

    Zdeborova, Lenka [Los Alamos National Laboratory; Krzakala, Florent [Los Alamos National Laboratory

    2009-01-01

    We study the planted ensemble of locked constraint satisfaction problems. We describe the connection between the random and planted ensembles. The use of the cavity method is combined with arguments from reconstruction on trees and first and second moment considerations; in particular the connection with the reconstruction on trees appears to be crucial. Our main result is the location of the hard region in the planted ensemble, thus providing hard satisfiable benchmarks. In a part of that hard region instances have with high probability a single satisfying assignment.

  12. Hybrid Tractable Classes of Binary Quantified Constraint Satisfaction Problems

    CERN Document Server

    Gao, Jian; Zhou, Junping

    2011-01-01

    In this paper, we investigate the hybrid tractability of binary Quantified Constraint Satisfaction Problems (QCSPs). First, a basic tractable class of binary QCSPs is identified by using the broken-triangle property. In this class, the variable ordering for the broken-triangle property must be same as that in the prefix of the QCSP. Second, we break this restriction to allow that existentially quantified variables can be shifted within or out of their blocks, and thus identify some novel tractable classes by introducing the broken-angle property. Finally, we identify a more generalized tractable class, i.e., the min-of-max extendable class for QCSPs.

  13. TGGs for Transforming UML to CSP

    DEFF Research Database (Denmark)

    Greenyer, Joel; Kindler, Ekkart; Rieke, Jan;

    Contest. The second transformation problem, a transformation from UML activity diagrams to CSP processes, i.e. a transformation between two models, is a typical application for Triple Graph Grammars (TGGs). We present our contributed solution, presenting the TGG rules and the implementation of our TGG...

  14. TGGs for Transforming UML to CSP

    DEFF Research Database (Denmark)

    Greenyer, Joel; Kindler, Ekkart; Rieke, Jan

    Contest. The second transformation problem, a transformation from UML activity diagrams to CSP processes, i.e. a transformation between two models, is a typical application for Triple Graph Grammars (TGGs). We present our contributed solution, presenting the TGG rules and the implementation of our TGG...

  15. Bidirectional Associations Between Newlyweds' Marital Satisfaction and Marital Problems over Time.

    Science.gov (United States)

    Lavner, Justin A; Karney, Benjamin R; Williamson, Hannah C; Bradbury, Thomas N

    2016-11-08

    Prevailing views of marital functioning generally adopt the view that marital problems predict decreases in marital satisfaction, but alternative theoretical perspectives raise the possibility that lowered satisfaction can also predict increases in problems. The current study sought to integrate and compare these perspectives by examining the bidirectional cross-lagged associations between newlyweds' reports of their marital satisfaction and marital problems over the first 4 years of marriage. Using annual assessments from 483 heterosexual newlywed couples, we find evidence for problem-to-satisfaction linkages as well as satisfaction-to-problem linkages. Satisfaction was a stronger predictor of marital problems early in marriage but not as time passed; by Year 4 only problem-to-satisfaction linkages remained significant. These findings are consistent with the idea that couples with more problems go on to report lower levels of satisfaction and couples with lower levels of satisfaction go on to report more marital problems. This dynamic interplay between global judgments about relationship satisfaction and ongoing specific relationship difficulties highlights the value of examining bidirectional effects to better understand marital functioning over time. © 2016 Family Process Institute.

  16. Solving Constraint Satisfaction Problems with Networks of Spiking Neurons.

    Science.gov (United States)

    Jonke, Zeno; Habenschuss, Stefan; Maass, Wolfgang

    2016-01-01

    Network of neurons in the brain apply-unlike processors in our current generation of computer hardware-an event-based processing strategy, where short pulses (spikes) are emitted sparsely by neurons to signal the occurrence of an event at a particular point in time. Such spike-based computations promise to be substantially more power-efficient than traditional clocked processing schemes. However, it turns out to be surprisingly difficult to design networks of spiking neurons that can solve difficult computational problems on the level of single spikes, rather than rates of spikes. We present here a new method for designing networks of spiking neurons via an energy function. Furthermore, we show how the energy function of a network of stochastically firing neurons can be shaped in a transparent manner by composing the networks of simple stereotypical network motifs. We show that this design approach enables networks of spiking neurons to produce approximate solutions to difficult (NP-hard) constraint satisfaction problems from the domains of planning/optimization and verification/logical inference. The resulting networks employ noise as a computational resource. Nevertheless, the timing of spikes plays an essential role in their computations. Furthermore, networks of spiking neurons carry out for the Traveling Salesman Problem a more efficient stochastic search for good solutions compared with stochastic artificial neural networks (Boltzmann machines) and Gibbs sampling.

  17. Solving constraint satisfaction problems with networks of spiking neurons

    Directory of Open Access Journals (Sweden)

    Zeno eJonke

    2016-03-01

    Full Text Available Network of neurons in the brain apply – unlike processors in our current generation ofcomputer hardware – an event-based processing strategy, where short pulses (spikes areemitted sparsely by neurons to signal the occurrence of an event at a particular point intime. Such spike-based computations promise to be substantially more power-efficient thantraditional clocked processing schemes. However it turned out to be surprisingly difficult todesign networks of spiking neurons that can solve difficult computational problems on the levelof single spikes (rather than rates of spikes. We present here a new method for designingnetworks of spiking neurons via an energy function. Furthermore we show how the energyfunction of a network of stochastically firing neurons can be shaped in a quite transparentmanner by composing the networks of simple stereotypical network motifs. We show that thisdesign approach enables networks of spiking neurons to produce approximate solutions todifficult (NP-hard constraint satisfaction problems from the domains of planning/optimizationand verification/logical inference. The resulting networks employ noise as a computationalresource. Nevertheless the timing of spikes (rather than just spike rates plays an essential rolein their computations. Furthermore, networks of spiking neurons carry out for the Traveling Salesman Problem a more efficient stochastic search for good solutions compared with stochastic artificial neural networks (Boltzmann machines and Gibbs sampling.

  18. Spines of Random Constraint Satisfaction Problems: Definition and Connection with Computational Complexity

    OpenAIRE

    2005-01-01

    We study the connection between the order of phase transitions in combinatorial problems and the complexity of decision algorithms for such problems. We rigorously show that, for a class of random constraint satisfaction problems, a limited connection between the two phenomena indeed exists. Specifically, we extend the definition of the spine order parameter of Bollobas et al. to random constraint satisfaction problems, rigorously showing that for such problems a discontinuity of the spine is...

  19. Positive Youth Development, Life Satisfaction and Problem Behaviour Among Chinese Adolescents in Hong Kong: A Replication

    OpenAIRE

    Rachel C. F. Sun; Shek, Daniel T. L.

    2011-01-01

    The purpose of this replication study was to examine the relationships among life satisfaction, positive youth development and problem behaviour. The respondents were 7,151 Chinese Secondary 2 (Grade 8) students (3,707 boys and 3,014 girls) recruited from 44 schools in Hong Kong. Validated assessment tools measuring positive youth development, life satisfaction and problem behaviour were used. As predicted, positive youth development was positively correlated with life satisfaction, and posit...

  20. CSP for Executable Scientific Workflows

    DEFF Research Database (Denmark)

    Friborg, Rune Møllegaard

    and can usually benefit performance-wise from both multiprocessing, cluster and grid environments. PyCSP is an implementation of Communicating Sequential Processes (CSP) for the Python programming language and takes advantage of CSP's formal and verifiable approach to controlling concurrency...... and the readability of Python source code. Python is a popular programming language in the scientific community, with many scientific libraries (modules) and simple integration to external languages. This thesis presents a PyCSP extended with many new features and a more robust implementation to allow scientific...... is demonstrated through examples. By providing a robust library for organising scientific workflows in a Python application I hope to inspire scientific users to adopt PyCSP. As a proof-of-concept this thesis demonstrates three scientific applications: kNN, stochastic minimum search and McStas to scale well...

  1. CSP for Executable Scientific Workflows

    DEFF Research Database (Denmark)

    Friborg, Rune Møllegaard

    is demonstrated through examples. By providing a robust library for organising scientific workflows in a Python application I hope to inspire scientific users to adopt PyCSP. As a proof-of-concept this thesis demonstrates three scientific applications: kNN, stochastic minimum search and McStas to scale well......This thesis presents CSP as a means of orchestrating the execution of tasks in a scientific workflow. Scientific workflow systems are popular in a wide range of scientific areas, where tasks are organised in directed graphs. Execution of such graphs is handled by the scientific workflow systems...... on multi-processing and cluster computing using PyCSP. Additionally, McStas is demonstrated to utilise grid computing resources using PyCSP. Finally, this thesis presents a new dynamic channel model, which has not yet been implemented for PyCSP. The dynamic channel is able to change the internal...

  2. Sexual Distress and Sexual Problems During Pregnancy: Associations With Sexual and Relationship Satisfaction.

    Science.gov (United States)

    Vannier, Sarah A; Rosen, Natalie O

    2017-03-01

    Sexual problems are common during pregnancy, but the proportion of pregnant women who experience sexual distress is unknown. In non-pregnant samples, sexual distress is associated with lower sexual and relationship satisfaction. To identify the proportion of women experiencing sexual distress during pregnancy and to compare the sexual and relationship satisfaction of women who report sexual distress during pregnancy with that of women without distress. Two-hundred sixty-one pregnant women completed a cross-sectional online survey. Women completed validated measurements of sexual functioning (Female Sexual Function Index; score relationship satisfaction (Couples Satisfaction Index). Overall, 42% of women met the clinical cutoff for sexual distress. Of sexually active women (n = 230), 26% reported concurrent sexual problems and distress and 14% reported sexual distress in the absence of sexual problems. Sexual distress and/or problems in sexual functioning were linked to lower sexual and relationship satisfaction compared with pregnant women with lower sexual distress and fewer sexual problems. Sexual distress is common during pregnancy and associated with lower sexual and relationship satisfaction. Health care providers should ask pregnant women about feelings of sexual distress. Identifying pregnant women who experience sexual distress and referring them to appropriate resources could help minimize sexual and relationship problems during pregnancy. Vannier SA, Rosen NO. Sexual Distress and Sexual Problems During Pregnancy: Associations With Sexual and Relationship Satisfaction. J Sex Med 2017;14:387-395. Copyright © 2017 International Society for Sexual Medicine. Published by Elsevier Inc. All rights reserved.

  3. Life Satisfaction, Positive Youth Development, and Problem Behaviour among Chinese Adolescents in Hong Kong

    Science.gov (United States)

    Sun, Rachel C. F.; Shek, Daniel T. L.

    2010-01-01

    This paper examines the relationships among life satisfaction, positive youth development, and problem behaviour. A total of 7,975 Secondary One students (4,169 boys and 3,387 girls; with most aged 12) of Chinese ethnicity recruited from 48 schools responded to validated measures of life satisfaction, positive youth development and problem…

  4. Introducing Problem-Based Learning to Undergraduate IT Service Management Course: Student Satisfaction and Work Performance

    Science.gov (United States)

    Anicic, Katarina Pažur; Mekovec, Renata

    2016-01-01

    This paper describes the implementation of problem-based learning (PBL) principles in an undergraduate IT service management course, followed by the results about student satisfaction and work performance. The results indicate the students' general satisfaction with the course implementation, as well as some challenges regarding the…

  5. Association Between Sexual Problems and Relationship Satisfaction Among People With Cardiovascular Disease.

    Science.gov (United States)

    Byrne, Molly; Murphy, Patrick; D'Eath, Maureen; Doherty, Sally; Jaarsma, Tiny

    2017-05-01

    Relationship satisfaction is generally positively correlated with sexual satisfaction, but this relation has been poorly examined in people with cardiovascular disease who are at increased risk of sexual problems compared with the general population. To document reported changes to sex after a diagnosis of cardiac disease and determine whether there is an association between sexual function and relationship satisfaction. Semistructured telephone interviews focused on relationship satisfaction and sexual problems were conducted with 201 people with cardiovascular disease who were currently in a sexual relationship with one main partner and were recruited from six hospital cardiac rehabilitation centers in Ireland. Comparisons between groups were conducted using t-tests and multivariate analysis of variance for continuous variables and χ(2) tests for categorical variables. Predictors of relationship satisfaction were assessed using multiple linear regression analysis. Data were gathered on demographic and clinical variables, sexual problems, and relationship satisfaction, including satisfaction with the physical, emotional, affection, and communication aspects of relationships. Just less than one third of participants (n = 61, 30.3%) reported that sex had changed for the worse since their cardiac event or diagnosis, with approximately half of these stating that this was a serious problem for them. Satisfaction with relationships was high among patients surveyed; more than 70% of the sample reported being very or extremely satisfied with the physical and emotional aspects and showing affection during sex. Satisfaction with communication about sex was lower, with only 58% reporting being very or extremely satisfied. We did not find significant associations between reporting of sexual problems or deterioration of sex as a result of disease and relationship satisfaction. Cardiac rehabilitation programs should address these sexual problems, potentially by enhancing

  6. Patient silence is not necessarily client satisfaction: communication problems in home care nursing.

    Science.gov (United States)

    Heineken, J

    1998-02-01

    Although we may believe we are inviting client feedback about care, it is clear from a recent study surveying home care providers and older adult care recipients that failures in communication continue to plague us. Inadequate communication can lead to misunderstandings, client and provider dissatisfaction, and even termination of the home care provider-client relationship. By strengthening communication skills, staff can see changes in client satisfaction, have greater success in resolving potential problems, and may ultimately experience more job performance satisfaction.

  7. Common chronic health problems and life satisfaction among Macau elderly people

    OpenAIRE

    Hu, Sydney X. X.; Wai In Lei; Ka Kei Chao; Hall, Brian J.; Siu Fung Chung

    2016-01-01

    Aim: Most elderly people live with one or more health problems and their quality of life is affected. This study aimed to compare life satisfaction of elderly people living with common chronic medical illness compared with those without these health conditions in order to identify conditions that most affect life satisfaction of elderly people living in the community. Method: The data was collected by a questionnaire survey of 529 elderly living in community dwellings of Macau using a sing...

  8. CSP Design Model and Tool Support

    NARCIS (Netherlands)

    Volkerink, H.J.; Volkerink, H.J.; Hilderink, G.H.; Broenink, Johannes F.; Vervoort, Wiek; Welch, P.H.; Bakkers, André

    The CSP paradigm is known as a powerful concept for designing and analysing the architectural and behavioural parts of concurrent software. Although the theory of CSP is useful for mathematicians, the programming language occam has been derived from CSP that is useful for any engineering practice.

  9. CSP design model and tool support

    NARCIS (Netherlands)

    Volkerink, H.J.; Hilderink, G.H.; Broenink, J.F.; Vervoort, W.A.; Bakkers, A.W.P.; Welch, P.H.; Bakkers, A.W.P.

    2000-01-01

    The CSP paradigm is known as a powerful concept for designing and analysing the architectural and behavioural parts of concurrent software. Although the theory of CSP is useful for mathematicians, the programming language occam has been derived from CSP that is useful for any engineering practice. N

  10. Parental Satisfaction in the Adoption of Children with Learning Disorders: The Role of Behavior Problems

    Science.gov (United States)

    Nalavany, Blace A.; Glidden, Laraine M.; Ryan, Scott D.

    2009-01-01

    We sought to determine the extent to which children's behavior problems would mediate the relationship between children's learning disorders and adoption satisfaction using nationally representative data from 1,865 adoptive parents. We found that high levels of behavior problems, operationalized as internalizing and externalizing behaviors,…

  11. Feasibility Study on HYSOL CSP

    DEFF Research Database (Denmark)

    Nielsen, Lars Henrik; Baldini, Mattia; Skytte, Klaus

    2016-01-01

    Concentrating Solar Power (CSP) plants utilize thermal conversion of direct solar irradiation. A trough or tower configuration focuses solar radiation and heats up oil or molten salt that subsequently in high temperature heat exchangers generate steam for power generation. High temperature molten...

  12. Feasibility Study on HYSOL CSP

    DEFF Research Database (Denmark)

    Nielsen, Lars Henrik; Baldini, Mattia; Skytte, Klaus

    2016-01-01

    salt can be stored and the stored heat can thus increase the load factor and the usability for a CSP plant, e.g. to cover evening peak demand. In the HYSOL concept (HYbrid SOLar) such configuration is extended further to include a gas turbine fuelled by upgraded biogas or natural gas. The optimised...

  13. CspC and CspD are essential for Caulobacter crescentus stationary phase survival.

    Science.gov (United States)

    Balhesteros, Heloise; Mazzon, Ricardo R; da Silva, Carolina A P T; Lang, Elza A S; Marques, Marilis V

    2010-09-01

    The cold shock response in bacteria involves the expression of low-molecular weight cold shock proteins (CSPs) containing a nucleic acid-binding cold shock domain (CSD), which are known to destabilize secondary structures on mRNAs, facilitating translation at low temperatures. Caulobacter crescentus cspA and cspB are induced upon cold shock, while cspC and cspD are induced during stationary phase. In this work, we determined a new coding sequence for the cspC gene, revealing that it encodes a protein containing two CSDs. The phenotypes of C. crescentus csp mutants were analyzed, and we found that cspC is important for cells to maintain viability during extended periods in stationary phase. Also, cspC and cspCD strains presented altered morphology, with frequent non-viable filamentous cells, and cspCD also showed a pronounced cell death at late stationary phase. In contrast, the cspAB mutant presented increased viability in this phase, which is accompanied by an altered expression of both cspC and cspD, but the triple cspABD mutant loses this characteristic. Taken together, our results suggest that there is a hierarchy of importance among the csp genes regarding stationary phase viability, which is probably achieved by a fine tune balance of the levels of these proteins.

  14. Complexity Classification in Infinite-Domain Constraint Satisfaction

    CERN Document Server

    Bodirsky, Manuel

    2012-01-01

    A constraint satisfaction problem (CSP) is a computational problem where the input consists of a finite set of variables and a finite set of constraints, and where the task is to decide whether there exists a satisfying assignment of values to the variables. Depending on the type of constraints that we allow in the input, a CSP might be tractable, or computationally hard. In recent years, general criteria have been discovered that imply that a CSP is polynomial-time tractable, or that it is NP-hard. Finite-domain CSPs have become a major common research focus of graph theory, artificial intelligence, and finite model theory. It turned out that the key questions for complexity classification of CSPs are closely linked to central questions in universal algebra. This thesis studies CSPs where the variables can take values from an infinite domain. This generalization enhances dramatically the range of computational problems that can be modeled as a CSP. Many problems from areas that have so far seen no interactio...

  15. Adult attachment and drinking context as predictors of alcohol problems and relationship satisfaction in college students.

    Science.gov (United States)

    Hocking, Elise C; Simons, Raluca M; Simons, Jeffrey S; Freeman, Harry

    2017-07-25

    Evidence suggests that for young adults, intimate partners influence each other's drinking patterns. Therefore, exploration of variables related to intimate partner relationships (such as attachment style) could broaden the current understanding of risk factors for alcohol problems in this demographic. The current study examined the role of drinking context in the relationships among insecure attachment, alcohol problems, and relationship satisfaction. A path model was hypothesized where the relationship between insecure attachment and alcohol problems would be explained via two distinct drinking contexts (i.e., drinking with one's partner and drinking away from one's partner). It was also hypothesized that the relationship between insecure attachment and relationship satisfaction would be explained via these same two drinking contexts. Participants were 194 undergraduate students ages 18-25 who reported being in a monogamous intimate partner relationship for at least 90 days and had also consumed alcohol in the past 90 days. The sample was comprised of 76% women and 24% men. The hypothesized direct relationship from anxious attachment to alcohol problems was significant; there were also significant direct paths from both anxious and avoidant attachment to relationship satisfaction. The hypotheses regarding indirect relationships were not supported. The results of this study contribute to the existing literature, in that they suggest that drinking in the context of an intimate relationship may not directly affect relationship satisfaction in this population. However, relationship functioning still appears to be an important variable to consider in the prevention and treatment of alcohol-related problems affecting college students.

  16. Feasibility Study on HYSOL CSP

    DEFF Research Database (Denmark)

    Nielsen, Lars Henrik; Skytte, Klaus; Pérez, Cristian Hernán Cabrera

    2016-01-01

    salt can be stored and the stored heat can thus increase the load factor and the usability for a CSP plant, e.g. to cover evening peak demand. In the HYSOL concept (HYbrid SOLar) such configuration is extended further to include a gas turbine fuelled by upgraded biogas or natural gas. The optimised....... The CO2 free HYSOL alternative is discussed relative to conventional reference firm power generation technologies. In particular the HYSOL performance relative to new power plants based on natural gas (NG) such as open cycle or combined cycle gas turbines (OCGT or CCGT) are in focus. The feasibility......Concentrating Solar Power (CSP) plants utilize thermal conversion of direct solar irradiation. A trough or tower configuration focuses solar radiation and heats up oil or molten salt that subsequently in high temperature heat exchangers generate steam for power generation. High temperature molten...

  17. Machine-Checkable Timed CSP

    Science.gov (United States)

    Goethel, Thomas; Glesner, Sabine

    2009-01-01

    The correctness of safety-critical embedded software is crucial, whereas non-functional properties like deadlock-freedom and real-time constraints are particularly important. The real-time calculus Timed Communicating Sequential Processes (CSP) is capable of expressing such properties and can therefore be used to verify embedded software. In this paper, we present our formalization of Timed CSP in the Isabelle/HOL theorem prover, which we have formulated as an operational coalgebraic semantics together with bisimulation equivalences and coalgebraic invariants. Furthermore, we apply these techniques in an abstract specification with real-time constraints, which is the basis for current work in which we verify the components of a simple real-time operating system deployed on a satellite.

  18. A study into ant colony optimisation, evolutionary computation and constraint programming on binary constraint satisfaction problems.

    NARCIS (Netherlands)

    J.I. van Hemert; C. Solnon

    2004-01-01

    textabstractWe compare two heuristic approaches, evolutionary computation and ant colony optimisation, and a complete tree-search approach, constraint programming, for solving binary constraint satisfaction problems. We experimentally show that, if evolutionary computation is far from being able to

  19. Common chronic health problems and life satisfaction among Macau elderly people

    Directory of Open Access Journals (Sweden)

    Sydney X.X. Hu

    2016-12-01

    Conclusion: Lowest life satisfaction was reported among Macau elderly people living with mobility related chronic medical illness. Policies and practices should pay more attention to mobility related health problems or issues of elderly people, such as eye health and neuromuscular weaknesses.

  20. Positive Youth Development, Life Satisfaction and Problem Behaviour among Chinese Adolescents in Hong Kong: A Replication

    Science.gov (United States)

    Sun, Rachel C. F.; Shek, Daniel T. L.

    2012-01-01

    The purpose of this replication study was to examine the relationships among life satisfaction, positive youth development and problem behaviour. The respondents were 7,151 Chinese Secondary 2 (Grade 8) students (3,707 boys and 3,014 girls) recruited from 44 schools in Hong Kong. Validated assessment tools measuring positive youth development,…

  1. The Relationship between Satisfaction with Life, ADHD Symptoms, and Associated Problems among University Students

    Science.gov (United States)

    Gudjonsson, Gisli H.; Sigurdsson, Jon Fridrik; Eyjolfsdottir, Gudrun Agusta; Smari, Jakob; Young, Susan

    2009-01-01

    Objective: To ascertain whether ADHD symptoms, and associated problems, are negatively related to subjective well-being. Method: The Satisfaction With Life Scale (SWLS) was completed by 369 university students, along with the Reasoning & Rehabilitation (R&R) ADHD Training Evaluation (RATE), the "Diagnostic and Statistical Manual of…

  2. Asynchronous Partial Overlay: A New Algorithm for Solving Distributed Constraint Satisfaction Problems

    CERN Document Server

    Lesser, V R; 10.1613/jair.1786

    2011-01-01

    Distributed Constraint Satisfaction (DCSP) has long been considered an important problem in multi-agent systems research. This is because many real-world problems can be represented as constraint satisfaction and these problems often present themselves in a distributed form. In this article, we present a new complete, distributed algorithm called Asynchronous Partial Overlay (APO) for solving DCSPs that is based on a cooperative mediation process. The primary ideas behind this algorithm are that agents, when acting as a mediator, centralize small, relevant portions of the DCSP, that these centralized subproblems overlap, and that agents increase the size of their subproblems along critical paths within the DCSP as the problem solving unfolds. We present empirical evidence that shows that APO outperforms other known, complete DCSP techniques.

  3. A technique for solving constraint satisfaction problems using Prolog's definite clause grammars

    Science.gov (United States)

    Nachtsheim, Philip R.

    1988-01-01

    A new technique for solving constraint satisfaction problems using Prolog's definite clause grammars is presented. It exploits the fact that the grammar rule notation can be viewed as a state exchange notation. The novel feature of the technique is that it can perform informed as well as blind search. It provides the Prolog programmer with a new technique for application to a wide range of design, scheduling, and planning problems.

  4. Analysis of factors affecting satisfaction level on problem based learning approach using structural equation modeling

    Science.gov (United States)

    Hussain, Nur Farahin Mee; Zahid, Zalina

    2014-12-01

    Nowadays, in the job market demand, graduates are expected not only to have higher performance in academic but they must also be excellent in soft skill. Problem-Based Learning (PBL) has a number of distinct advantages as a learning method as it can deliver graduates that will be highly prized by industry. This study attempts to determine the satisfaction level of engineering students on the PBL Approach and to evaluate their determinant factors. The Structural Equation Modeling (SEM) was used to investigate how the factors of Good Teaching Scale, Clear Goals, Student Assessment and Levels of Workload affected the student satisfaction towards PBL approach.

  5. Mental health problems and satisfaction with amount of state compensation for intentional violent crime victimization in the Netherlands.

    Science.gov (United States)

    Kunst, M J J

    2012-08-01

    The current study explored whether self-reported mental health problems among victims of violent crime (n = 151) affect their ratings of satisfaction with amount of financial compensation awarded by the Dutch state and vice versa. This topic is important to address, because satisfaction is often used as an indicator of quality of victim services. Relying on medical literature about satisfaction with compensation in patient populations, it was expected that satisfaction levels would be negatively associated with mental health problems. Mental health problems were assessed with the General Health Questionnaire. A threshold of 11/12 on this scale was used to differentiate between victims with and without probable mental health problems. In line with expectations, victims with probable mental health problems reported significantly lower levels of satisfaction than those without. Results remained unchanged after adjusting for potential confounding. Findings were discussed in light of study limitations and directions for future research.

  6. gCSP occam Code Generation for RMOX

    NARCIS (Netherlands)

    Groothuis, Marcel A.; Liet, Geert K.; Broenink, Jan F.; Broenink, J.F.; Roebbers, H.W.; Sunter, J.P.E.; Welch, P.H.; Wood, D.C.

    2005-01-01

    gCSP is a graphical tool for creating and editing CSP diagrams. gCSP is used in our labs to generate the embedded software framework for our control systems. As a further extension to our gCSP tool, an occam code generator has been constructed. Generating occam from CSP diagrams gives opportunities

  7. Approximation Complexity of Complex-Weighted Degree-Two Counting Constraint Satisfaction Problems

    CERN Document Server

    Yamakami, Tomoyuki

    2011-01-01

    Constraint satisfaction problems have been studied in numerous fields with practical and theoretical interests. In recent years, major breakthroughs have been made in a study of counting constraint satisfaction problems (or #CSPs). In particular, a computational complexity classification of bounded-degree #CSPs has been discovered for all degrees except for two, where the "degree" of an input instance is the maximal number of times that each input variable appears in a given set of constraints. Despite the efforts of recent studies, however, a complexity classification of degree-2 #CSPs has eluded from our understandings. This paper challenges this open problem and gives its partial solution by applying two novel proof techniques--T_{2}-constructibility and parametrized symmetrization--which are specifically designed to handle "arbitrary" constraints under randomized approximation-preserving reductions. We partition entire constraints into four sets and we classify the approximation complexity of all degree-2...

  8. DEPICT: A High-level Formal Language for Modeling Constraint Satisfaction Problems

    Institute of Scientific and Technical Information of China (English)

    Abdulwahed M. Abbas; Edward P. K. Tsang; Ahmad H. Nasri

    2008-01-01

    The past decade witnessed rapid development of constraint satisfaction technologies, where algorithms are now able to cope with larger and harder problems. However, owing to the fact that constraints are inherently declarative, attention is quickly turning toward developing high-level programming languages within which such problems can be modeled and also solved. Along these lines, this paper presents DEPICT, the language. Its use is illustrated through modeling a number of benchmark examples. The paper continues with a description of a prototype system within which such models may be interpreted. The paper concludes with a description of a sample run of this interpreter showing how a problem modeled as such is typically solved.

  9. Low cost anti-soiling coatings for CSP collector mirrors and heliostats

    Energy Technology Data Exchange (ETDEWEB)

    Smith, Barton Barton [ORNL; Polyzos, Georgios [ORNL; Schaeffer, Daniel A [ORNL; Lee, Dominic F [ORNL; Datskos, Panos G [ORNL

    2014-01-01

    Most concentrating solar power (CSP) facilities in the USA are located in the desert southwest of the country where land and sunshine are abundant. But one of the significant maintenance problems and cost associated with operating CSP facilities in this region is the accumulation of dust, sand and other pollutants on the collector mirrors and heliostats. In this paper we describe the development of low cost, easy to apply anti-soiling coatings based on superhydrophobic (SH) functionalized nano silica materials and polymer binders that posses the key requirements necessary to inhibit particulate deposition on and sticking to CSP mirror surfaces, and thereby significantly reducing mirror cleaning costs and facility downtime.

  10. Marital satisfaction, sexual problems, and the possible difficulties on sex therapy in traditional Islamic culture.

    Science.gov (United States)

    Yasan, Aziz; Gürgen, Faruk

    2009-01-01

    We plan to investigate the level of marital satisfaction, the prevalence of sexual problems, and related issues in couples who were referred to an outpatient clinic of psychiatry for their sexual problems. All were living according to traditional Islamic culture. Twenty-five (80.64%) of the couples attended the clinic for not being able to have any sexual intercourse. Overall, 25.8% of the women, and 3.2% of the men had been married without their consent; those marriages were arranged and mediated by matchmakers. Vaginismus (58.06%) was the most common diagnosis among women and premature ejaculation (38.70%) among men. We found that marital satisfaction was affected by the mode of marriage.

  11. Multiobjective Quantum Evolutionary Algorithm for the Vehicle Routing Problem with Customer Satisfaction

    Directory of Open Access Journals (Sweden)

    Jingling Zhang

    2012-01-01

    Full Text Available The multiobjective vehicle routing problem considering customer satisfaction (MVRPCS involves the distribution of orders from several depots to a set of customers over a time window. This paper presents a self-adaptive grid multi-objective quantum evolutionary algorithm (MOQEA for the MVRPCS, which takes into account customer satisfaction as well as travel costs. The degree of customer satisfaction is represented by proposing an improved fuzzy due-time window, and the optimization problem is modeled as a mixed integer linear program. In the MOQEA, nondominated solution set is constructed by the Challenge Cup rules. Moreover, an adaptive grid is designed to achieve the diversity of solution sets; that is, the number of grids in each generation is not fixed but is automatically adjusted based on the distribution of the current generation of nondominated solution set. In the study, the MOQEA is evaluated by applying it to classical benchmark problems. Results of numerical simulation and comparison show that the established model is valid and the MOQEA is effective for MVRPCS.

  12. Metallurgical quality of CSP thin slabs

    Institute of Scientific and Technical Information of China (English)

    Deguang Zhou; Jie Fu; Yonglin Kang; Zhongbing Wang; Jing Li; Zhongbo Xu

    2004-01-01

    The casting structure, chemical composition segregation, dendrite arm space, inclusiona and during the CSP (compact strip production) rolling process were investigated. The results show that the CSP thin slab has a feature of uniform fme grains, more columnar crystals, less central porosity and segregation etc. There is no great difference in macrostructure between the CSP thin slab and conventional slab; however, the fine dendrite structure of the CSP slab is more uniform. Moreover, the central porosity and segregation are obviously improved after the first pass; and the dendrite is bent along the rolling direction rather than broken into pieces.Small inclusions with the diameter less than 10 μm in the CSP slab are dominantly consisted of aluminates formed by A1 deoxidation and Ca treatment and not floating out of the melt. The large size inclusions found in the continuous casting slab are very few.

  13. SKA CSP controls: technological challenges

    Science.gov (United States)

    Baffa, C.; Giani, E.; Vrcic, S.; Vela Nuñez, M.

    2016-07-01

    The Square Kilometer Array (SKA) project is an international effort to build the world's largest radio telescope, with eventually over a square kilometer of collecting area. For SKA Phase 1, Australia will host the low-frequency instrument with more than 500 stations, each containing around 250 individual antennas, whilst South Africa will host an array of close to 200 dishes. The scale of the SKA represents a huge leap forward in both engineering and research and development towards building and delivering a unique instrument, with the detailed design and preparation now well under way. As one of the largest scientific endeavors in history, the SKA will brings together close to 100 organizations from 20 countries. Every aspect of the design and development of such a large and complex instrument requires state-of-the-art technology and innovative approach. This poster (or paper) addresses some aspects of the SKA monitor and control system, and in particular describes the development and test results of the CSP Local Monitoring and Control prototype. At the SKA workshop held in April 2015, the SKA monitor and control community has chosen TANGO Control System as a framework, for the implementation of the SKA monitor and control. This decision will have a large impact on Monitor an Control development of SKA. As work is on the way to incorporate TANGO Control System in SKA is in progress, we started to development a prototype for the SKA Central Signal Processor to mitigate the associated risks. In particular we now have developed a uniform class schema proposal for the sub-Element systems of the SKA-CSP.

  14. Roles of Communication Problems and Communication Strategies on Resident-Related Role Demand and Role Satisfaction.

    Science.gov (United States)

    Savundranayagam, Marie Y; Lee, Christopher

    2017-03-01

    This study investigated the impact of dementia-related communication difficulties and communication strategies used by staff on resident-related indicators of role demand and role satisfaction. Formal/paid long-term care staff caregivers (N = 109) of residents with dementia completed questionnaires on dementia-related communication difficulties, communication strategies, role demand (ie, residents make unreasonable demands), and role satisfaction (measured by relationship closeness and influence over residents). Three types of communication strategies were included: (a) effective repair strategies, (b) completing actions by oneself, and (c) tuning out or ignoring the resident. Analyses using structural equation modeling revealed that communication problems were positively linked with role demand. Repair strategies were positively linked with relationship closeness and influence over residents. Completing actions by oneself was positively linked to role demand and influence over residents, whereas tuning out was negatively linked with influence over residents. The findings underscore that effective caregiver communication skills are essential in enhancing staff-resident relationships.

  15. Introducing problem-based learning to undergraduate IT service management course: student satisfaction and work performance

    Directory of Open Access Journals (Sweden)

    Katarina Pažur Aničić

    2016-12-01

    Full Text Available This paper describes the implementation of problem-based learning (PBL principles in an undergraduate IT service management course, followed by the results about student satisfaction and work performance. The results indicate the students’ general satisfaction with the course implementation, as well as some challenges regarding the self-assessment and peer assessment of their work. The findings also reveal the students’ better work performance in project results than in traditional knowledge tests, which reinforces the indications about their positive attitudes towards the interactive PBL environment. The cluster analyses identified seven different patterns in student behaviour regarding course performance. The presented results can be considered a new aspect of the development and amendment of the information and communication technology (ICT skills requested by future employers. In this regard, the demand for innovation in the education of future ICT professionals arises from the need for experts equipped with both IT and business skills.

  16. CSP scenarios in South Africa: Benefits of CSP and the lessons learned

    Science.gov (United States)

    Silinga, Cebo; Gauché, Paul; van Niekerk, Wikus

    2016-05-01

    The dispatchibility potential of CSP in South Africa was investigated in the previous study. This was done by proposing a virtual hybrid system including the planned Open Cycle Gas Turbines and an optimized fleet of CSP plants. The study revealed a number of benefits; mitigates costs of capital, incrementally reduces fuel dependency, adds reserve margin and leads to a lower LCOE of the system. The subsequent paper to that, investigated the effects of the two-tier tariff structure, introduced in the Independent Power Producer Programme of the Department of Energy, which has on the proposed 3 300 MW capacity of CSP plants that is proposed as a peaking CSP system. The former study showed that the proposed CSP system generates 29 % less revenue under the two-tier tariff. However, when the CSP system is optimized for the two-tier tariff, it becomes profitable - with a smaller storage capacity of 5 hours. This report investigates and presents the results and beneficial strategies from the previous reports. In addition, this report investigates the strategies of increasing the CSP energy share to the peak energy. The results show that the two-tier tariff results in a smaller storage optimized system - due to profitability. The implications would not reflect an increase in the share of CSP energy during peak time. In addition, it reduces the share of CSP energy during the winter season.

  17. CSP Assembly Reliability: Commercial and Harsh Environments

    Science.gov (United States)

    Ghaffarian, R.; Kim, N.; Selk, K.; Bjorndahl, B.; Bonner, J.; Barr, S.

    1999-01-01

    The JPL-led CSP Consortium of enterprises representing government agencies and private companies has jointed together to pool in-kind resources for developing the quality and reliability of chip scale packages (CSPs) for a variety of projects.

  18. Asymmetric continuous-time neural networks without local traps for solving constraint satisfaction problems.

    Directory of Open Access Journals (Sweden)

    Botond Molnár

    Full Text Available There has been a long history of using neural networks for combinatorial optimization and constraint satisfaction problems. Symmetric Hopfield networks and similar approaches use steepest descent dynamics, and they always converge to the closest local minimum of the energy landscape. For finding global minima additional parameter-sensitive techniques are used, such as classical simulated annealing or the so-called chaotic simulated annealing, which induces chaotic dynamics by addition of extra terms to the energy landscape. Here we show that asymmetric continuous-time neural networks can solve constraint satisfaction problems without getting trapped in non-solution attractors. We concentrate on a model solving Boolean satisfiability (k-SAT, which is a quintessential NP-complete problem. There is a one-to-one correspondence between the stable fixed points of the neural network and the k-SAT solutions and we present numerical evidence that limit cycles may also be avoided by appropriately choosing the parameters of the model. This optimal parameter region is fairly independent of the size and hardness of instances, this way parameters can be chosen independently of the properties of problems and no tuning is required during the dynamical process. The model is similar to cellular neural networks already used in CNN computers. On an analog device solving a SAT problem would take a single operation: the connection weights are determined by the k-SAT instance and starting from any initial condition the system searches until finding a solution. In this new approach transient chaotic behavior appears as a natural consequence of optimization hardness and not as an externally induced effect.

  19. PyCSP - Communicating Sequential Processes for Python

    DEFF Research Database (Denmark)

    Vinter, Brian; Bjørndalen, John Markus; Anshus, Otto Johan

    The Python programming language is effective for rapidly specifying programs and experimenting with them. It is increasingly being used in computational sciences, and in teaching computer science. CSP is effective for describing concurrency. It has become especially relevant with the emergence......CSP presently supports the core CSP abstractions. We introduce the PyCSP library, its implementation, a few performance benchmarks, and show example code using PyCSP. An early prototype of PyCSP has been used in this year's Extreme Multiprogramming Class at the CS department, university of Copenhagen...

  20. PV integration into a CSP plant

    Science.gov (United States)

    Carvajal, Javier López; Barea, Jose M.; Barragan, Jose; Ortega, Carlos

    2017-06-01

    This paper describes a preliminary techno-economic analysis of the integration of a PV plant into an optimized Parabolic Trough Plant in order to reduce the online consumptions and thus, increase the net electricity injected into the grid. The idea is to assess the feasibility of such project and see what configuration would be the optimal. An extra effort has been made in terms of modelling as the analysis has to be done to the integrated CSP + PV plant instead of analyzing them independently. Two different technologies have been considered for the PV plant, fix and one-axis tracking. Additionally three different scenarios have been considered for the CSP plant auxiliary consumptions as they are essential for determining the optimal PV plant (the higher the auxiliary consumption the higher the optimal PV plant). As could be expected, the results for all cases with PV show an improvement in terms of electricity generation and also in terms of LCOE with respect to the CSP plant. Such improvement is slightly higher with tracking technology for this specific study. Although this exercise has been done to an already designed CSP plant (so only the PV plant had to be optimized), the methodology could be applied for the optimization of an integrated CSP + PV plant during the design phase.

  1. Social problem-solving, perceived stress, depression and life-satisfaction in patients suffering from tension type and migraine headaches.

    Science.gov (United States)

    Eskin, Mehmet; Akyol, Ali; Çelik, Emine Yilmaz; Gültekin, Bülent Kadri

    2013-08-01

    This study aimed at investigating social problem solving, perceived stress, depression, and life-satisfaction in patients with tension type and migraine headaches. Forty-nine migraine and 42 tension type headache patients (n = 91) consenting to participate were compared to a total of 49 matched healthy control group. Participants filled in a questionnaire consisting self-report measures of problem solving, perceived stress, depression and life satisfaction. They were also asked about headache duration, frequency, pain severity, psychiatric treatment and sense of control in one's life. T-tests, chi-square, analysis of variance, logistic regression analysis and Pearson product moment correlation coefficient procedures were used to analyze the data. Tension type headache patients reported having had more frequent headaches than the migraine patients but migraine patients reported having had more intense pain than the tension type headache patients. Instances of psychiatric treatment were more common among tension type headache patients than the migraine and the control group. Compared to the healthy controls, headache patients displayed a deficiency in problem solving, higher levels of perceived stress and depression. Levels of problem solving skills in headache patients were related inversely to depression, perceived stress and the number of negative life events but problem solving skills of headache patients was related positively to life-satisfaction. The findings from this study suggested that cognitive behavioral problem solving therapy or training might be a viable option for reducing levels of stress and depression, and to increase life-satisfaction in patients suffering from primary headache.

  2. Job Satisfaction And Family Happiness : The Part-Time Work Problem

    NARCIS (Netherlands)

    Booth, A.L.; van Ours, J.C.

    2007-01-01

    Using fixed effects ordered logit estimation, we investigate the relationship between part-time work and working hours satisfaction; job satisfaction; and life satisfaction. We account for interdependence within the family using data on partnered men and women from the British Household Panel

  3. Job Satisfaction And Family Happiness : The Part-Time Work Problem

    NARCIS (Netherlands)

    Booth, A.L.; van Ours, J.C.

    2007-01-01

    Using fixed effects ordered logit estimation, we investigate the relationship between part-time work and working hours satisfaction; job satisfaction; and life satisfaction. We account for interdependence within the family using data on partnered men and women from the British Household Panel Survey

  4. CSPBuilder - CSP based Scientific Workflow Modelling

    DEFF Research Database (Denmark)

    Friborg, Rune Møllegaard; Vinter, Brian

    2008-01-01

    This paper introduces a framework for building CSP based applications, targeted for clusters and next generation CPU designs. CPUs are produced with several cores today and every future CPU generation will feature increasingly more cores, resulting in a requirement for concurrency that has...... not previously been called for. The framework is CSP presented as a scienti¿c work¿ow model, specialized for scienti¿c computing applications. The purpose of the framework is to enable scientists to exploit large parallel computation resources, which has previously been hard due of the dif¿culty of concurrent...... programming using threads and locks....

  5. We Need to Talk: Disclosure of Sexual Problems Is Associated With Depression, Sexual Functioning, and Relationship Satisfaction in Women.

    Science.gov (United States)

    Merwin, Kathleen E; O'Sullivan, Lucia F; Rosen, Natalie O

    2017-01-20

    Women with sexual problems (e.g., difficulties with desire, arousal, lubrication, orgasm, and pain during sexual activity) experience more depressive symptoms, and poorer sexual functioning and relationship satisfaction compared with unaffected women. A robust literature highlights the importance of sexual communication, and sexual self-disclosures in particular, for the well-being of individuals in romantic relationships. However, little is known about the disclosure of sexual problems to romantic partners and its association with women's psychological, sexual, and relationship well-being. This study examined the proportion of women (N = 277) who disclose (vs. do not disclose) sexual problems to their partner, and the consequences of disclosure. Women (Mage = 29.79, SD = 6.54) completed online validated measures assessing sexual problems, relationship satisfaction, sexual functioning, and depressive symptoms. The majority (69.3%) reported disclosing sexual problems to their current romantic partner. Disclosers reported fewer depressive symptoms, and greater sexual functioning and relationship satisfaction compared to nondisclosers. Disclosing sexual problems may benefit women's well-being by enhancing intimacy or allowing couples to adapt sexual activities to accommodate sexual problems. Clinicians might use cognitive-behavioral strategies to assist women in disclosing sexual problems to partners to maximize the potential psychological, sexual, and relationship benefits.

  6. A graphical Specification Language for Modeling Concurrency based on CSP

    NARCIS (Netherlands)

    Hilderink, Gerald H.; Pascoe, James; Welch, Peter; Loader, Roger; Sunderam, Vaidy

    2002-01-01

    Introduced in this paper is a new graphical modeling language for specifying concurrency in software designs. The language notations are derived from CSP and the resulting designs form CSP diagrams. The notations reflect both data-flow and control-flow aspects, as well as along with CSP algebraic ex

  7. A graphical Specification Language for Modeling Concurrency based on CSP

    NARCIS (Netherlands)

    Hilderink, G.H.; Pascoe, James; Welch, Peter; Loader, Roger; Sunderam, Vaidy

    2002-01-01

    Introduced in this paper is a new graphical modeling language for specifying concurrency in software designs. The language notations are derived from CSP and the resulting designs form CSP diagrams. The notations reflect both data-flow and control-flow aspects, as well as along with CSP algebraic

  8. A distributed Real-Time Java system based on CSP

    NARCIS (Netherlands)

    Hilderink, G.H.; Bakkers, André; Broenink, Johannes F.

    2000-01-01

    CSP is a fundamental concept for developing software for distributed real time systems. The CSP paradigm constitutes a natural addition to object orientation and offers higher order multithreading constructs. The CSP channel concept that has been implemented in Java deals with single- and

  9. Weighted Constraint Satisfaction for Smart Home Automation and Optimization

    Directory of Open Access Journals (Sweden)

    Noel Nuo Wi Tay

    2016-01-01

    Full Text Available Automation of the smart home binds together services of hardware and software to provide support for its human inhabitants. The rise of web technologies offers applicable concepts and technologies for service composition that can be exploited for automated planning of the smart home, which can be further enhanced by implementation based on service oriented architecture (SOA. SOA supports loose coupling and late binding of devices, enabling a more declarative approach in defining services and simplifying home configurations. One such declarative approach is to represent and solve automated planning through constraint satisfaction problem (CSP, which has the advantage of handling larger domains of home states. But CSP uses hard constraints and thus cannot perform optimization and handle contradictory goals and partial goal fulfillment, which are practical issues smart environments will face if humans are involved. This paper extends this approach to Weighted Constraint Satisfaction Problem (WCSP. Branch and bound depth first search is used, where its lower bound is estimated by bacterial memetic algorithm (BMA on a relaxed version of the original optimization problem. Experiments up to 16-step planning of home services demonstrate the applicability and practicality of the approach, with the inclusion of local search for trivial service combinations in BMA that produces performance enhancements. Besides, this work aims to set the groundwork for further research in the field.

  10. The Effect of Problem-Based Video Instruction on Learner Satisfaction, Comprehension and Retention in College Courses

    Science.gov (United States)

    Choi, Hee Jun; Johnson, Scott D.

    2007-01-01

    The main purpose of this study was to identify the effects of two major components (ie, video and group discussion) of problem-based video instruction (PBVI) on college students' learning. To achieve this purpose, this study examined whether or not PBVI can improve learner satisfaction, comprehension and retention by comparing the results from…

  11. Teacher Satisfaction with School and Psychological Well-Being Affects Their Readiness to Help Children with Mental Health Problems

    Science.gov (United States)

    Sisask, Merike; Värnik, Peeter; Värnik, Airi; Apter, Alan; Balazs, Judit; Balint, Maria; Bobes, Julio; Brunner, Romuald; Corcoran, Paul; Cosman, Doina; Feldman, Dana; Haring, Christian; Kahn, Jean-Pierre; Poštuvan, Vita; Tubiana, Alexandra; Sarchiapone, Marco; Wasserman, Camilla; Carli, Vladimir; Hoven, Christina W.; Wasserman, Danuta

    2014-01-01

    Objective: In support of a whole-school approach to mental health promotion, this study was conducted to find out whether and how significantly teachers' satisfaction with school and their subjective psychological well-being are related to the belief that they can help pupils with mental health problems. Design: Cross-sectional data were…

  12. Nickel-catalyzed Csp2-Csp3 bond formation by carbon-fluorine activation.

    Science.gov (United States)

    Sun, Alex D; Leung, Kaylyn; Restivo, Anita D; LaBerge, Nicole A; Takasaki, Harumi; Love, Jennifer A

    2014-03-10

    We report herein a general catalytic method for Csp(2)-Csp(3) bond formation through C-F activation. The process uses an inexpensive nickel complex with either diorganozinc or alkylzinc halide reagents, including those with β-hydrogen atoms. A variety of fluorine substitution patterns and functional groups can be readily incorporated. Sequential reactions involving different precatalysts and coupling partners permit the synthesis of densely functionalized fluorinated building blocks.

  13. Clustered organization and transcriptional analysis of a family of five csp genes of Lactococcus lactis MG1363

    NARCIS (Netherlands)

    Wouters, Jeroen A.; Sanders, Jan-Willem; Kok, Jan; Vos, Willem M. de; Kuipers, Oscar P.; Abee, Tjakko; Wouters, J.W.

    1998-01-01

    A family of genes encoding cold-shock proteins, named cspA, cspB, cspC, cspD and cspE, was cloned and sequenced from Lactococcus lactis MG1363. The genes cspA and cspB and the genes cspC and cspD are located in tandem repeats, an organization of csp genes that has never been encountered before. The

  14. Positive Youth Development, Life Satisfaction and Problem Behaviors of Adolescents in Intact and Non-Intact Families in Hong Kong

    Directory of Open Access Journals (Sweden)

    Daniel Tan Lei Shek

    2013-08-01

    Full Text Available This study investigated whether Chinese adolescents living in intact and non-intact families differed in their positive development, life satisfaction, and risk behavior. A total of 3,328 Secondary 1 students responded to measures of positive youth development (such as resilience and psychosocial competencies, life satisfaction, and risk behavior (substance abuse, delinquency, Internet addiction, consumption of pornographic materials, self-harm, and behavioral intention to engage in problem behavior. Findings revealed that adolescents growing up in intact families reported higher levels of positive developmental outcomes and life satisfaction as compared with adolescents from non-intact families. Adolescents in non-intact families also reported higher levels of risk behaviors than those growing up in intact families.

  15. Students′ satisfaction to hybrid problem-based learning format for basic life support/advanced cardiac life support teaching

    Directory of Open Access Journals (Sweden)

    Geetanjali Chilkoti

    2016-01-01

    Full Text Available Background and Aims: Students are exposed to basic life support (BLS and advanced cardiac life support (ACLS training in the first semester in some medical colleges. The aim of this study was to compare students′ satisfaction between lecture-based traditional method and hybrid problem-based learning (PBL in BLS/ACLS teaching to undergraduate medical students. Methods: We conducted a questionnaire-based, cross-sectional survey among 118 1 st -year medical students from a university medical college in the city of New Delhi, India. We aimed to assess the students′ satisfaction between lecture-based and hybrid-PBL method in BLS/ACLS teaching. Likert 5-point scale was used to assess students′ satisfaction levels between the two teaching methods. Data were collected and scores regarding the students′ satisfaction levels between these two teaching methods were analysed using a two-sided paired t-test. Results: Most students preferred hybrid-PBL format over traditional lecture-based method in the following four aspects; learning and understanding, interest and motivation, training of personal abilities and being confident and satisfied with the teaching method (P < 0.05. Conclusion: Implementation of hybrid-PBL format along with the lecture-based method in BLS/ACLS teaching provided high satisfaction among undergraduate medical students.

  16. Invariants and Other Structural Properties of Biochemical Models as a Constraint Satisfaction Problem

    Directory of Open Access Journals (Sweden)

    Soliman Sylvain

    2012-05-01

    Full Text Available Abstract Background We present a way to compute the minimal semi-positive invariants of a Petri net representing a biological reaction system, as resolution of a Constraint Satisfaction Problem. The use of Petri nets to manipulate Systems Biology models and make available a variety of tools is quite old, and recently analyses based on invariant computation for biological models have become more and more frequent, for instance in the context of module decomposition. Results In our case, this analysis brings both qualitative and quantitative information on the models, in the form of conservation laws, consistency checking, etc. thanks to finite domain constraint programming. It is noticeable that some of the most recent optimizations of standard invariant computation techniques in Petri nets correspond to well-known techniques in constraint solving, like symmetry-breaking. Moreover, we show that the simple and natural encoding proposed is not only efficient but also flexible enough to encompass sub/sur-invariants, siphons/traps, etc., i.e., other Petri net structural properties that lead to supplementary insight on the dynamics of the biochemical system under study. Conclusions A simple implementation based on GNU-Prolog's finite domain solver, and including symmetry detection and breaking, was incorporated into the BIOCHAM modelling environment and in the independent tool Nicotine. Some illustrative examples and benchmarks are provided.

  17. Two phase genetic algorithm for vehicle routing and scheduling problem with cross-docking and time windows considering customer satisfaction

    Science.gov (United States)

    Baniamerian, Ali; Bashiri, Mahdi; Zabihi, Fahime

    2017-04-01

    Cross-docking is a new warehousing policy in logistics which is widely used all over the world and attracts many researchers attention to study about in last decade. In the literature, economic aspects has been often studied, while one of the most significant factors for being successful in the competitive global market is improving quality of customer servicing and focusing on customer satisfaction. In this paper, we introduce a vehicle routing and scheduling problem with cross-docking and time windows in a three-echelon supply chain that considers customer satisfaction. A set of homogeneous vehicles collect products from suppliers and after consolidation process in the cross-dock, immediately deliver them to customers. A mixed integer linear programming model is presented for this problem to minimize transportation cost and early/tardy deliveries with scheduling of inbound and outbound vehicles to increase customer satisfaction. A two phase genetic algorithm (GA) is developed for the problem. For investigating the performance of the algorithm, it was compared with exact and lower bound solutions in small and large-size instances, respectively. Results show that there are at least 86.6% customer satisfaction by the proposed method, whereas customer satisfaction in the classical model is at most 33.3%. Numerical examples results show that the proposed two phase algorithm could achieve optimal solutions in small-size instances. Also in large-size instances, the proposed two phase algorithm could achieve better solutions with less gap from the lower bound in less computational time in comparison with the classic GA.

  18. The problem of bias when nursing facility staff administer customer satisfaction surveys.

    Science.gov (United States)

    Hodlewsky, R Tamara; Decker, Frederic H

    2002-10-01

    Customer satisfaction instruments are being used with increasing frequency to assess and monitor residents' assessments of quality of care in nursing facilities. There is no standard protocol, however, for how or by whom the instruments should be administered when anonymous, written responses are not feasible. Researchers often use outside interviewers to assess satisfaction, but cost considerations may limit the extent to which facilities are able to hire outside interviewers on a regular basis. This study was designed to investigate the existence and extent of any bias caused by staff administering customer satisfaction surveys. Customer satisfaction data were collected in 1998 from 265 residents in 21 nursing facilities in North Dakota. Half the residents in each facility were interviewed by staff members and the other half by outside consultants; scores were compared by interviewer type. In addition to a tabulation of raw scores, ordinary least-squares analysis with facility fixed effects was used to control for resident characteristics and unmeasured facility-level factors that could influence scores. Significant positive bias was found when staff members interviewed residents. The bias was not limited to questions directly affecting staff responsibilities but applied across all types of issues. The bias was robust under varying constructions of satisfaction and dissatisfaction. A uniform method of survey administration appears to be important if satisfaction data are to be used to compare facilities. Bias is an important factor that should be considered and weighed against the costs of obtaining outside interviewers when assessing customer satisfaction among long term care residents.

  19. A hybrid meta-heuristic algorithm for the vehicle routing problem with stochastic travel times considering the driver's satisfaction

    Science.gov (United States)

    Tavakkoli-Moghaddam, Reza; Alinaghian, Mehdi; Salamat-Bakhsh, Alireza; Norouzi, Narges

    2012-05-01

    A vehicle routing problem is a significant problem that has attracted great attention from researchers in recent years. The main objectives of the vehicle routing problem are to minimize the traveled distance, total traveling time, number of vehicles and cost function of transportation. Reducing these variables leads to decreasing the total cost and increasing the driver's satisfaction level. On the other hand, this satisfaction, which will decrease by increasing the service time, is considered as an important logistic problem for a company. The stochastic time dominated by a probability variable leads to variation of the service time, while it is ignored in classical routing problems. This paper investigates the problem of the increasing service time by using the stochastic time for each tour such that the total traveling time of the vehicles is limited to a specific limit based on a defined probability. Since exact solutions of the vehicle routing problem that belong to the category of NP-hard problems are not practical in a large scale, a hybrid algorithm based on simulated annealing with genetic operators was proposed to obtain an efficient solution with reasonable computational cost and time. Finally, for some small cases, the related results of the proposed algorithm were compared with results obtained by the Lingo 8 software. The obtained results indicate the efficiency of the proposed hybrid simulated annealing algorithm.

  20. The assessment of recalled parental rearing behavior and its relationship to life satisfaction and interpersonal problems: a general population study

    Directory of Open Access Journals (Sweden)

    Hinz Andreas

    2009-03-01

    Full Text Available Abstract Background Parental rearing behavior is a significant etiological factor for the vulnerability of psychopathology and has been an issue of clinical research for a long time. For this scope instruments are important who asses economically recalled parental rearing behavior in a clinical practice. Therefore, a short German instrument for the assessment of the recalled parental rearing behavior Fragebogen zum erinnerten elterlichen Erziehungsverhalten (FEE was psychometrically evaluated [Recalled Parental Rearing Behavior]. Methods This questionnaire was evaluated in a representative population sample (N = 2.948 in Germany which included 44.2% male and 55.8% female persons with a mean age of M = 47.35 (SD = 17.10, range = 18–92. For the content evaluation of the FEE the Life Satisfaction Questionnaire (FLZ and the Inventory of Interpersonal Problems (IIP was filled out by the participants. Results The FEE scales yielded a good to satisfactory internal consistency and split-half reliability. Its three factors (rejection/punishment, emotional warmth, control/overprotection correlated positively with most of the areas of life satisfaction. Furthermore, positive associations between interpersonal problems and parental rejection and control could be identified. Conclusion The FEE is a short, reliable and valid instrument that can be applied in the clinical practice. In addition, the data proved an association between recalled parental rearing behavior, life satisfaction and interpersonal problems conform to the literature. Finally, specific problems with the retrospective assessment of parental rearing behavior were addressed as well.

  1. Palladium(0)-Catalyzed Benzylic C(sp(3))-H Functionalization for the Concise Synthesis of Heterocycles and Its Applications.

    Science.gov (United States)

    Tsukano, Chihiro

    2017-01-01

    C-H functionalization reactions involve the activation of otherwise unreactive C-H bonds, and represent atom economical methods for the direct transformation of simple substrates to complex molecules. While transition metal-catalyzed C(sp(2))-H functionalization reactions are regularly used in synthesis, C(sp(3))-H functionalization is rarely applied to the synthesis of complex natural products because of the difficulties associated with controlling selectivity. With this in mind, we focused on the development of new palladium (Pd)(0)-catalyzed C(sp(3))-H functionalization reactions for the synthesis of complex molecules, resulting in several new methods capable of solving these problems. We initially developed a concise synthetic method for the facile construction of oxindoles and spirooxindoles via a Pd-catalyzed benzylic C(sp(3))-H functionalization reaction. This method was subsequently extended to the synthesis of various heterocycles, including 2-arylindoles, benzocarbazole, indolocarbazole, indoloquinazolinone, and indoloquinazolinedione, as well as the total synthesis of several pyrrolophenanthridine alkaloids without the need for any protecting groups. This method was also successfully applied to the synthesis of the right-hand fragment of benzohopane from tetrahydro-2H-fluorene, which was constructed by a Pd-catalyzed benzylic C(sp(3))-H functionalization. In this review, we provide a detailed discussion of our most recent investigations pertaining to Pd(0)-catalyzed benzylic C(sp(3))-H functionalization.

  2. Improved Parameterized Algorithms for Constraint Satisfaction

    CERN Document Server

    Kim, Eun Jung

    2010-01-01

    Results from inapproximability provide several sharp thresholds on the approximability of important optimization problems. We give several improved parameterized algorithms for solving constraint satisfaction problems above a tight threshold. Our results include the following: - Improved algorithms for any Constraint Satisfaction Problem: Take any boolean Max-CSP with at most $c$ variables per constraint such that a random assignment satisfies a constraint with probability $p$. There is an algorithm such that for every instance of the problem with $m$ constraints, the algorithm decides whether at least $pm+k$ constraints can be satisfied in $O(2^{(c(c+1)/2) k} m)$ time. This improves on results of [Alon et al., SODA 2010] and [Crowston et al., SWAT 2010]. We observe that an $O(2^{\\eps k + \\eps m})$ time algorithm for every $\\eps > 0$ would imply that 3SAT is in subexponential time, so it seems unlikely that our runtime dependence on $k$ can be significantly improved. Our proof also shows that every Max-$c$-CS...

  3. Accelerating CSP with storage in Namibia - Brave or impossible

    Science.gov (United States)

    Muller, Grant H.; Mutschler, Margaret

    2016-05-01

    This paper provides the background to, and progress on, the first Concentrated Solar Power (CSP) plant in Namibia. The paper will provide progress on the work completed in the pre-feasibility study, address some aspects regarding the site selection for the first CSP project, provide an update on the procurement of solar resource data and offer some considerations regarding the potential acceleration of the first CSP plant in Namibia.

  4. PyCSP - Communicating Sequential Processes for Python

    DEFF Research Database (Denmark)

    Vinter, Brian; Bjørndalen, John Markus; Anshus, Otto Johan

    The Python programming language is effective for rapidly specifying programs and experimenting with them. It is increasingly being used in computational sciences, and in teaching computer science. CSP is effective for describing concurrency. It has become especially relevant with the emergence...... of commodity multi-core architectures. We are interested in exploring how a combination of Python and CSP can benefit both the computational sciences and the hands-on teaching of distributed and parallel computing in computer science. To make this possible, we have developed PyCSP, a CSP library for Python. Py...

  5. Environmental Assessment of a HYSOL CSP Plant Compared to a Conventional Tower CSP Plant

    NARCIS (Netherlands)

    Corona, B.; Ruiz, D.; San Miguel, G.

    2016-01-01

    The aim of this paper is to evaluate the environmental performance of a Concentrating Solar Power (CSP) plant based on HYSOL technology. The plant under investigation is a solar tower system with 14 hours thermal energy storage using biomethane as auxiliary fuel and using a 100 MWe steam turbine and

  6. Environmental Assessment of a HYSOL CSP Plant Compared to a Conventional Tower CSP Plant

    NARCIS (Netherlands)

    Corona, B.; Ruiz, D.; San Miguel, G.

    2016-01-01

    The aim of this paper is to evaluate the environmental performance of a Concentrating Solar Power (CSP) plant based on HYSOL technology. The plant under investigation is a solar tower system with 14 hours thermal energy storage using biomethane as auxiliary fuel and using a 100 MWe steam turbine and

  7. Next Generation Solar Collectors for CSP

    Energy Technology Data Exchange (ETDEWEB)

    Molnar, Attila [3M Company, St. Paul, MN (United States); Charles, Ruth [3M Company, St. Paul, MN (United States)

    2014-07-31

    The intent of “Next Generation Solar Collectors for CSP” program was to develop key technology elements for collectors in Phase 1 (Budget Period 1), design these elements in Phase 2 (Budget Period 2) and to deploy and test the final collector in Phase 3 (Budget Period 3). 3M and DOE mutually agreed to terminate the program at the end of Budget Period 1, primarily due to timeline issues. However, significant advancements were achieved in developing a next generation reflective material and panel that has the potential to significantly improve the efficiency of CSP systems.

  8. Low cost anti-soiling coatings for CSP collector mirrors and heliostats

    Science.gov (United States)

    Hunter, Scott R.; Smith, D. Barton; Polizos, Georgios; Schaeffer, Daniel A.; Lee, Dominic F.; Datskos, Panos G.

    2014-10-01

    Most concentrating solar power (CSP) facilities in the USA are located in the desert southwest where open land and sunshine are abundant, but airborne dust is prevalent. The accumulation of dust, sand and other natural pollutants on collector mirrors and heliostats presents a significant operational problem and M&O cost for the CSP facilities in this region. The optical performance of the CSP collectors is key to achieving low electricity costs, where a 1% decrease in reflectance directly leads to a 1% increase in the levelized cost of electricity (LCOE) generated by these facilities. In this paper we describe the development of low cost, easy to apply anti-soiling coatings based on superhydrophobic (SH) functionalized nano silica materials and polymer binders that possess the key requirements necessary to inhibit particulate deposition on, and adhesion to, CSP mirror surfaces, and thereby significantly reducing mirror cleaning costs and facility downtime. The key requirements for these coatings are excellent optical clarity with minimal diffuse reflectance, and coating mechanical and exposure durability in harsh desert environments while maintaining SH and dirt shedding properties. The coatings developed to date have excellent SH properties with water contact angles >165° and rolling angles 99% that of uncoated mirror surfaces with coating diffuse reflectance being <1% over this wavelength range. Ongoing mechanical and accelerated solar UVA exposures also indicate these coatings will meet the required durability goals.

  9. The Role of Life Satisfaction in the Relationship between Authoritative Parenting Dimensions and Adolescent Problem Behavior

    Science.gov (United States)

    Suldo, Shannon M.; Huebner, E. Scott

    2004-01-01

    Research examining environmental factors associated with adolescents' life satisfaction (LS) has revealed that familial variables (e.g., parent-child conflict, family structure) are crucial correlates. The purpose of the current study was to identify particular dimensions of authoritative parenting (strictness-supervision, social…

  10. Graphical modelling language for spycifying concurrency based on CSP

    NARCIS (Netherlands)

    Hilderink, G.H.

    2003-01-01

    Introduced in this (shortened) paper is a graphical modelling language for specifying concurrency in software designs. The language notations are derived from CSP and the resulting designs form CSP diagrams. The notations reflect both data-flow and control-flow aspects of concurrent software

  11. A new model for solution of complex distributed constrained problems

    CERN Document Server

    Al-Maqtari, Sami; Babkin, Eduard

    2010-01-01

    In this paper we describe an original computational model for solving different types of Distributed Constraint Satisfaction Problems (DCSP). The proposed model is called Controller-Agents for Constraints Solving (CACS). This model is intended to be used which is an emerged field from the integration between two paradigms of different nature: Multi-Agent Systems (MAS) and the Constraint Satisfaction Problem paradigm (CSP) where all constraints are treated in central manner as a black-box. This model allows grouping constraints to form a subset that will be treated together as a local problem inside the controller. Using this model allows also handling non-binary constraints easily and directly so that no translating of constraints into binary ones is needed. This paper presents the implementation outlines of a prototype of DCSP solver, its usage methodology and overview of the CACS application for timetabling problems.

  12. The Effect of Problem-Based Video Instruction on Student Satisfaction, Empathy, and Learning Achievement in the Korean Teacher Education Context

    Science.gov (United States)

    Choi, Hee Jun; Yang, Minwha

    2011-01-01

    The purpose of this study is to investigate whether or not the use of video can have a positive effect on satisfaction, empathy, and learning achievement in problem-based instruction among Korean college students majoring in education. To achieve this purpose, this study compared the findings from three dependent variables in problem-based video…

  13. The Application of Constraint Satisfaction Technique in Conflict Detection and Resolution

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The conflict detection and resolution in collaborative design is a key issue to maintain multi-disciplinary design consistency. This paper proposes a new method for conflict detection and resolution based on constraint sat isfaction technique.The representation of design constraint, the interval arith metic of the constraint satisfaction problem CSP and the conflict resolution str ategy based on constraint relaxation and adjustment are introduced.A constr aint-satisfaction based conflict detection and resolution tool CSCDR is then de veloped. It can help collaborative designers to detect and resolve the confli cts in time in the early stage of the design process so that the unnecessary des ign iteration and repeated negotiation are avoided and the design efficiency is then much improved. A design case illustrates the effectiveness of CSCDR.

  14. Techno-economic Appraisal of Concentrating Solar Power Systems (CSP)

    OpenAIRE

    Gasti, Maria

    2013-01-01

    The diffusion of Concentrating Solar Power Systems (CSP) systems is currently taking place at a much slower pace than photovoltaic (PV) power systems. This is mainly because of the higher present cost of the solar thermal power plants, but also for the time that is needed in order to build them. Though economic attractiveness of different Concentrating technologies varies, still PV power dominates the market. The price of CSP is expected to drop significantly in the near future and wide sprea...

  15. Coupling of C(sp(3))-H bonds with C(sp(2))-O electrophiles: mild, general and selective.

    Science.gov (United States)

    Gui, Yong-Yuan; Liao, Li-Li; Sun, Liang; Zhang, Zhen; Ye, Jian-Heng; Shen, Guo; Lu, Zhi-Peng; Zhou, Wen-Jun; Yu, Da-Gang

    2017-01-17

    Herein is reported the mild and general coupling of amine/ether C(sp(3))-H bonds with various kinds of C(sp(2))-O electrophiles with high selectivity and efficiency. Valuable allylic/benzylic amines are generated in moderate to excellent yields. The utility of this transformation is demonstrated by a broad substrate scope (>50 examples), good functional group tolerance and facile product modification.

  16. A manganese catalyst for highly reactive yet chemoselective intramolecular C(sp3)-H amination

    Science.gov (United States)

    Paradine, Shauna M.; Griffin, Jennifer R.; Zhao, Jinpeng; Petronico, Aaron L.; Miller, Shannon M.; Christina White, M.

    2015-12-01

    C-H bond oxidation reactions underscore the existing paradigm wherein high reactivity and high selectivity are inversely correlated. The development of catalysts capable of oxidizing strong aliphatic C(sp3)-H bonds while displaying chemoselectivity (that is, tolerance of more oxidizable functionality) remains an unsolved problem. Here, we describe a catalyst, manganese tert-butylphthalocyanine [Mn(tBuPc)], that is an outlier to the reactivity-selectivity paradigm. It is unique in its capacity to functionalize all types of C(sp3)-H bond intramolecularly, while displaying excellent chemoselectivity in the presence of π functionality. Mechanistic studies indicate that [Mn(tBuPc)] transfers bound nitrenes to C(sp3)-H bonds via a pathway that lies between concerted C-H insertion, observed with reactive noble metals such as rhodium, and stepwise radical C-H abstraction/rebound, as observed with chemoselective base metals such as iron. Rather than achieving a blending of effects, [Mn(tBuPc)] aminates even 1° aliphatic and propargylic C-H bonds, demonstrating reactivity and selectivity unusual for previously known catalysts.

  17. A manganese catalyst for highly reactive yet chemoselective intramolecular C(sp(3))-H amination.

    Science.gov (United States)

    Paradine, Shauna M; Griffin, Jennifer R; Zhao, Jinpeng; Petronico, Aaron L; Miller, Shannon M; Christina White, M

    2015-12-01

    C-H bond oxidation reactions underscore the existing paradigm wherein high reactivity and high selectivity are inversely correlated. The development of catalysts capable of oxidizing strong aliphatic C(sp(3))-H bonds while displaying chemoselectivity (that is, tolerance of more oxidizable functionality) remains an unsolved problem. Here, we describe a catalyst, manganese tert-butylphthalocyanine [Mn((t)BuPc)], that is an outlier to the reactivity-selectivity paradigm. It is unique in its capacity to functionalize all types of C(sp(3))-H bond intramolecularly, while displaying excellent chemoselectivity in the presence of π functionality. Mechanistic studies indicate that [Mn((t)BuPc)] transfers bound nitrenes to C(sp(3))-H bonds via a pathway that lies between concerted C-H insertion, observed with reactive noble metals such as rhodium, and stepwise radical C-H abstraction/rebound, as observed with chemoselective base metals such as iron. Rather than achieving a blending of effects, [Mn((t)BuPc)] aminates even 1° aliphatic and propargylic C-H bonds, demonstrating reactivity and selectivity unusual for previously known catalysts.

  18. Problem-Solving Management Training Effects on Sales Productivity and Job Satisfaction.

    Science.gov (United States)

    Ross, Paul C.; And Others

    Research suggests that effective organizational change must be led by line personnel rather than by outside consultants. The Performance Management Program (PMP) implemented in two Bell Telephone companies is a line-led, self-help program in which managers participate in problem-solving activities within their own jobs. Marketing and sales…

  19. Medical Students' Satisfaction and Academic Performance with Problem-Based Learning in Practice-Based Exercises for Epidemiology and Health Demographics

    Science.gov (United States)

    Jiménez-Mejías, E.; Amezcua-Prieto, C.; Martínez-Ruiz, V.; Olvera-Porcel, M. C.; Jiménez-Moleón, J. J.; Lardelli Claret, P.

    2015-01-01

    The aim of this study was to evaluate the effect of problem-based learning (PBL) on university students' satisfaction with and academic performance in a course on epidemiology and social and demographic health. The participants in this interventional study were 529 students (272 in the intervention group and 257 in the control group) enrolled in a…

  20. The constraints satisfaction problem approach in the design of an architectural functional layout

    Science.gov (United States)

    Zawidzki, Machi; Tateyama, Kazuyoshi; Nishikawa, Ikuko

    2011-09-01

    A design support system with a new strategy for finding the optimal functional configurations of rooms for architectural layouts is presented. A set of configurations satisfying given constraints is generated and ranked according to multiple objectives. The method can be applied to problems in architectural practice, urban or graphic design-wherever allocation of related geometrical elements of known shape is optimized. Although the methodology is shown using simplified examples-a single story residential building with two apartments each having two rooms-the results resemble realistic functional layouts. One example of a practical size problem of a layout of three apartments with a total of 20 rooms is demonstrated, where the generated solution can be used as a base for a realistic architectural blueprint. The discretization of design space is discussed, followed by application of a backtrack search algorithm used for generating a set of potentially 'good' room configurations. Next the solutions are classified by a machine learning method (FFN) as 'proper' or 'improper' according to the internal communication criteria. Examples of interactive ranking of the 'proper' configurations according to multiple criteria and choosing 'the best' ones are presented. The proposed framework is general and universal-the criteria, parameters and weights can be individually defined by a user and the search algorithm can be adjusted to a specific problem.

  1. Intimacy patterns and relationship satisfaction of women with eating problems and the mediating effects of depression, trait anxiety and social anxiety.

    Science.gov (United States)

    Evans, L; Wertheim, E H

    1998-01-01

    The association between eating problems; and intimacy and relationship styles was examined. Young adult females (n = 360) completed the Adult Attachment Style (AAS), questionnaire; questions on satisfaction with intimacy; the Sexual Attitude Scale; items on sexual avoidance; a set of six descriptions for mother, friend, and partner; and measures of depression, general anxiety, social anxiety, and eating problems. Women with greater eating problems described more difficulties in intimate relationships including less satisfaction with closeness, more discomfort in close intimate relationships, and less positive descriptions of friend and mother. When depression, general anxiety, and social anxiety were entered first in a regression, intimacy measures no longer added unique variance. However, public self-consciousness predicted over and above general affect and social anxiety measures. Results were consistent with a mediator model in which intimacy difficulties for women with eating problems are explained by depression, trait anxiety, and public self-consciousness.

  2. Brief Report: Description of Feasibility and Satisfaction Findings from an Innovative Online Family Problem-solving Intervention for Adolescents following Traumatic Brain Injury

    OpenAIRE

    Wade, Shari L.; Walz, Nicolay Chertkoff; Carey, JoAnne C.; Williams, Kendra M.

    2008-01-01

    Objective To describe feasibility and satisfaction findings from an innovative online family problem-solving intervention for adolescents with traumatic brain injury (TBI). Methods Nine adolescents who sustained a moderate to severe TBI in the previous 24 months and their families participated in a novel, online, manualized treatment program (Teen Online Problem Solving, TOPS) consisting of 10 web-based sessions providing information and interactive exercises on cognitive, social, and behavio...

  3. Comparative Study between Dermo, Pelite, and Seal-In X5 Liners: Effect on Patient’s Satisfaction and Perceived Problems

    Directory of Open Access Journals (Sweden)

    Sadeeq Ali

    2014-01-01

    Full Text Available Purpose. This study aimed to compare the effect of satisfaction and perceived problems between Pelite, Dermo with shuttle lock, and Seal-In X5 liners on the transtibial amputees. Material and Methods. A total of thirty transtibial amputees (17 male, 13 female volunteered to take part in this research. Two prostheses were fabricated for each participant. Prosthetic Evaluation Questionnaire (PEQ was filled in by the participants with the three liners. Results. The statistics highlight that Dermo liner showed significantly higher score (P=0.05 in walking, walking on uneven surfaces, stairs walking, fitting, donning/doffing, sitting, suspension, and overall satisfaction with Dermo liner compared with Seal-In X5 and Pelite liners. Overall satisfaction was 34% higher with Dermo liner than Seal-In X5 liner and 28% higher than Pelite liner. Participants reported less problems with Dermo liner and significant differences (P<0.05 were recorded between the three liners in sweating, skin irritation, frustration, and pain compared with Seal-In X5 and Pelite liners. Conclusion. Participants experienced high level of satisfaction and practiced fewer problems with Dermo liner. These results showed that there is good indication to believe that Dermo liner might be a good choice for transtibial users and might help the clinicians and prosthetic practitioners in selection criteria of prosthetic liners.

  4. DOA Estimation with Local-Peak-Weighted CSP

    Directory of Open Access Journals (Sweden)

    Ichikawa Osamu

    2010-01-01

    Full Text Available This paper proposes a novel weighting algorithm for Cross-power Spectrum Phase (CSP analysis to improve the accuracy of direction of arrival (DOA estimation for beamforming in a noisy environment. Our sound source is a human speaker and the noise is broadband noise in an automobile. The harmonic structures in the human speech spectrum can be used for weighting the CSP analysis, because harmonic bins must contain more speech power than the others and thus give us more reliable information. However, most conventional methods leveraging harmonic structures require pitch estimation with voiced-unvoiced classification, which is not sufficiently accurate in noisy environments. In our new approach, the observed power spectrum is directly converted into weights for the CSP analysis by retaining only the local peaks considered to be harmonic structures. Our experiment showed the proposed approach significantly reduced the errors in localization, and it showed further improvements when used with other weighting algorithms.

  5. Emotional intimacy is the best predictor of sexual satisfaction of men and women with sexual arousal problems.

    Science.gov (United States)

    Pascoal, P M; Narciso, I; Pereira, N M

    2013-01-01

    This study investigates the association between variables related to individual body appearance and relationship variables with sexual satisfaction (SS) in a sample of men and women with sexual arousal problems (SAP). An anonymous cross-sectional survey was conducted in a clinical setting with a non-representative sample of people diagnosed (DSP) with SAP and with a sample of people who identified themselves (SISP) as having a SAP. A total of 193 participants was recruited. SS and variables related to body appearance and relationship were measured. Hierarchical regression was used to study the contribution of different sets of variables on SS of men and women. No differences were found in terms of demographic variables, except for gender. Women in the SISP group presented significantly higher levels of SS than women in the DSP group. The predictive models proved to be statistically significant and explained many of the variance of SS in both men (R(2)=0.44) and women (R(2)=0.40). In both genders, emotional intimacy was revealed to be the main predictor of SS. Our results support the need to address relationship variables in patients diagnosed with SAP, specifically intimacy. This latter component must be considered for assessment, intervention and referral.

  6. Regulation of Clostridium difficile spore germination by the CspA pseudoprotease domain.

    Science.gov (United States)

    Kevorkian, Yuzo; Shirley, David J; Shen, Aimee

    2016-03-01

    Clostridium difficile is a spore-forming obligate anaerobe that is a leading cause of healthcare-associated infections. C. difficile infections begin when its metabolically dormant spores germinate in the gut of susceptible individuals. Binding of bile salt germinants to the Csp family pseudoprotease CspC triggers a proteolytic signaling cascade consisting of the Csp family protease CspB and the cortex hydrolase SleC. Conserved across many of the Clostridia, Csp proteases are subtilisin-like serine proteases that activate pro-SleC by cleaving off its inhibitory pro-peptide. Active SleC degrades the protective cortex layer, allowing spores to resume metabolism and growth. This signaling pathway, however, is differentially regulated in C. difficile, since CspC functions both as a germinant receptor and regulator of CspB activity. CspB is also produced as a fusion to a catalytically inactive CspA domain that subsequently undergoes interdomain processing during spore formation. In this study, we investigated the role of the CspA pseudoprotease domain in regulating C. difficile spore germination. Mutational analyses revealed that the CspA domain controls CspC germinant receptor levels in mature spores and is required for optimal spore germination, particularly when CspA is fused to the CspB protease. During spore formation, the YabG protease separates these domains, although YabG itself is dispensable for germination. Bioinformatic analyses of Csp family members suggest that the CspC-regulated signaling pathway characterized in C. difficile is conserved in related Peptostreptococcaceae family members but not in the Clostridiaceae or Lachnospiraceae. Our results indicate that pseudoproteases play critical roles in regulating C. difficile spore germination and highlight that diverse mechanisms control spore germination in the Clostridia.

  7. A Precision Photometric Comparison between SDSS-II and CSP Type Ia Supernova Data

    DEFF Research Database (Denmark)

    Mosher, J.; Sako, M.; Corlies, L.

    2012-01-01

    Consistency between Carnegie Supernova Project (CSP) and SDSS-II Supernova Survey ugri measurements has been evaluated by comparing Sloan Digital Sky Survey (SDSS) and CSP photometry for nine spectroscopically confirmed Type Ia supernova observed contemporaneously by both programs. The CSP data w...

  8. A Precision Photometric Comparison between SDSS-II and CSP Type Ia Supernova Data

    DEFF Research Database (Denmark)

    Mosher, J.; Sako, M.; Corlies, L.;

    2012-01-01

    Consistency between Carnegie Supernova Project (CSP) and SDSS-II Supernova Survey ugri measurements has been evaluated by comparing Sloan Digital Sky Survey (SDSS) and CSP photometry for nine spectroscopically confirmed Type Ia supernova observed contemporaneously by both programs. The CSP data...

  9. Three Unique Implementations of Processes for PyCSP

    DEFF Research Database (Denmark)

    Friborg, Rune Møllegaard; Bjørndalen, John Markus; Vinter, Brian

    2009-01-01

    In this work we motivate and describe three unique implementations of processes for PyCSP: process, thread and greenlet based. The overall purpose is to demonstrate the feasibility of Communicating Sequential Processes as a framework for different application types and target platforms. The resul...

  10. Modelling of a Coil Steam Generator for CSP applications

    DEFF Research Database (Denmark)

    Pelagotti, Leonardo; Sørensen, Kim; Condra, Thomas Joseph;

    2014-01-01

    The project investigates a new design for a CSP plant steam generation system, the Coil Steam Generator (CSG). This system allows faster start-ups and therefore higher daily energy production from the Sun. An analytical thermodynamic simulation model of the evaporator and a mechanical analysis...

  11. Bounded Delay Timing Analysis of a Class of CSP Programs

    DEFF Research Database (Denmark)

    Hulgaard, Henrik; Burns, Steven M.

    1997-01-01

    . Such a description is transformed into a safe Petri net with interval time delays specified on the places of the net. The timing analysis we perform determines the extreme separation in time between two communication actions of the CSP program for all possible timed executions of the system. We formally define...

  12. Measurements of mirror soiling at a candidate CSP site

    CSIR Research Space (South Africa)

    Griffith, DJ

    2013-09-01

    Full Text Available Procedia 00 (2013) 000–000 SolarPACES 2013 Measurements of mirror soiling at a candidate CSP site D. J. Griffith, L. Vhengani, M. Maliage CSIR, P O Box 395, Pretoria 0001, South Africa Abstract Loss of mirror reflectivity due to soiling...

  13. On purpose simulation model for molten salt CSP parabolic trough

    Science.gov (United States)

    Caranese, Carlo; Matino, Francesca; Maccari, Augusto

    2017-06-01

    The utilization of computer codes and simulation software is one of the fundamental aspects for the development of any kind of technology and, in particular, in CSP sector for researchers, energy institutions, EPC and others stakeholders. In that extent, several models for the simulation of CSP plant have been developed with different main objectives (dynamic simulation, productivity analysis, techno economic optimization, etc.), each of which has shown its own validity and suitability. Some of those models have been designed to study several plant configurations taking into account different CSP plant technologies (Parabolic trough, Linear Fresnel, Solar Tower or Dish) and different settings for the heat transfer fluid, the thermal storage systems and for the overall plant operating logic. Due to a lack of direct experience of Molten Salt Parabolic Trough (MSPT) commercial plant operation, most of the simulation tools do not foresee a suitable management of the thermal energy storage logic and of the solar field freeze protection system, but follow standard schemes. ASSALT, Ase Software for SALT csp plants, has been developed to improve MSPT plant's simulations, by exploiting the most correct operational strategies in order to provide more accurate technical and economical results. In particular, ASSALT applies MSPT specific control logics for the electric energy production and delivery strategy as well as the operation modes of the Solar Field in off-normal sunshine condition. With this approach, the estimated plant efficiency is increased and the electricity consumptions required for the plant operation and management is drastically reduced. Here we present a first comparative study on a real case 55 MWe Molten Salt Parabolic Trough CSP plant placed in the Tibetan highlands, using ASSALT and SAM (System Advisor Model), which is a commercially available simulation tool.

  14. The assessment of recalled parental rearing behavior and its relationship to life satisfaction and interpersonal problems: a general population study

    National Research Council Canada - National Science Library

    Petrowski, Katja; Berth, Hendrik; Schmidt, Silke; Schumacher, Jörg; Hinz, Andreas; Brähler, Elmar

    2009-01-01

    ...) in Germany which included 44.2% male and 55.8% female persons with a mean age of M = 47.35 (SD = 17.10, range = 18-92). For the content evaluation of the FEE the Life Satisfaction Questionnaire...

  15. GIS assessment of large CSP plant in Duqum, Oman

    Energy Technology Data Exchange (ETDEWEB)

    Charabi, Yassine [Department of Geography, College of Arts, Sultan Qaboos University, P.O. 42, Al-Khodh, Muscat 123 (Oman); Gastli, Adel [Department of Electrical and Computer Engineering, College of Engineering, Sultan Qaboos University, P.O. 33, Al-Khodh, Muscat 123 (Oman)

    2010-02-15

    This paper discusses solar power prospects in Wilayat Duqum in Oman. First, the geographic and topographic information about the selected region is presented. The methodology of producing solar radiation map for Duqum using GIS tools is then presented. The results obtained show very high potential of solar radiation over Wilayat Duqum during the whole year. A slope analysis has allowed calculating the yearly electricity generation potential for different concentrated solar power (CSP) technologies such as the parabolic trough, parabolic dish, tower, and concentrated PV. Based on the development plan of the Duqum region, and the topologies of the land areas in the region, it is suggested that, for the CSP technologies requiring large amount of water for washing the mirrors, the selected area is a flat land (slope < 1%) located proximity to the sea ({proportional_to}2 km) inside a total industrial area of around 50 km{sup 2}, hence, allowing easy future expansion of the plant. It was proposed to start with a 100 MW power plant which is expected to consume about 2.4 km{sup 2} of flat land for the parabolic trough CSP technology. The total calculated potential of yearly electricity generation would be about 2.3 TWh. If half of the selected land (0.5 x 50 km{sup 2}) is reserved for future expansion of the plant, the total future capacity can attain 1 GW of electric power. The selected area can also accommodate in the future different types of CSP technologies as they mature with time. (author)

  16. Silver-Catalyzed C(sp(3))-H Chlorination.

    Science.gov (United States)

    Ozawa, Jun; Kanai, Motomu

    2017-03-17

    A silver-catalyzed chlorination of benzylic, tertiary, and secondary C(sp(3))-H bonds was developed. The reaction proceeded with as low as 0.2 mol % catalyst loading at room temperature under air atmosphere with synthetically useful functional group compatibility. The regioselectivity and reactivity tendencies suggest that the chlorination proceeded through a radical pathway, but an intermediate alkylsilver species cannot be ruled out.

  17. CSP: A Multifaceted Hybrid Architecture for Space Computing

    Science.gov (United States)

    Rudolph, Dylan; Wilson, Christopher; Stewart, Jacob; Gauvin, Patrick; George, Alan; Lam, Herman; Crum, Gary Alex; Wirthlin, Mike; Wilson, Alex; Stoddard, Aaron

    2014-01-01

    Research on the CHREC Space Processor (CSP) takes a multifaceted hybrid approach to embedded space computing. Working closely with the NASA Goddard SpaceCube team, researchers at the National Science Foundation (NSF) Center for High-Performance Reconfigurable Computing (CHREC) at the University of Florida and Brigham Young University are developing hybrid space computers that feature an innovative combination of three technologies: commercial-off-the-shelf (COTS) devices, radiation-hardened (RadHard) devices, and fault-tolerant computing. Modern COTS processors provide the utmost in performance and energy-efficiency but are susceptible to ionizing radiation in space, whereas RadHard processors are virtually immune to this radiation but are more expensive, larger, less energy-efficient, and generations behind in speed and functionality. By featuring COTS devices to perform the critical data processing, supported by simpler RadHard devices that monitor and manage the COTS devices, and augmented with novel uses of fault-tolerant hardware, software, information, and networking within and between COTS devices, the resulting system can maximize performance and reliability while minimizing energy consumption and cost. NASA Goddard has adopted the CSP concept and technology with plans underway to feature flight-ready CSP boards on two upcoming space missions.

  18. Phenomenological studies on sodium for CSP applications: A safety review

    Science.gov (United States)

    Armijo, Kenneth M.; Andraka, Charles E.

    2016-05-01

    Sodium Heat transfer fluids (HTF) such as sodium, can achieve temperatures above 700°C to obtain power cycle performance improvements for reducing large infrastructure costs of high-temperature systems. Current concentrating solar power (CSP) sensible HTF's (e.g. air, salts) have poor thermal conductivity, and thus low heat transfer capabilities, requiring a large receiver. The high thermal conductivity of sodium has demonstrated high heat transfer rates on dish and towers systems, which allow a reduction in receiver area by a factor of two to four, reducing re-radiation and convection losses and cost by a similar factor. Sodium produces saturated vapor at pressures suitable for transport starting at 600°C and reaches one atmosphere at 870°C, providing a wide range of suitable operating conditions that match proposed high temperature, isothermal power cycles. This advantage could increase the efficiency while lowering the cost of CSP tower systems. Although there are a number of desirable thermal performance advantages associated with sensible sodium, its propensity to rapidly oxidize presents safety challenges. This investigation presents a literature review that captures historical operations/handling lessons for advanced sodium receiver designs, and the current state-of-knowledge related to sodium combustion behavior. Technical and operational solutions addressing sodium safety and applications in CSP will be discussed, including unique safety hazards and advantages using latent sodium. Lessons obtained from the nuclear industry with sensible and latent systems will also be discussed in the context of safety challenges and risk mitigation solutions.

  19. Addressing forecast uncertainty impact on CSP annual performance

    Science.gov (United States)

    Ferretti, Fabio; Hogendijk, Christopher; Aga, Vipluv; Ehrsam, Andreas

    2017-06-01

    This work analyzes the impact of weather forecast uncertainty on the annual performance of a Concentrated Solar Power (CSP) plant. Forecast time series has been produced by a commercial forecast provider using the technique of hindcasting for the full year 2011 in hourly resolution for Ouarzazate, Morocco. Impact of forecast uncertainty has been measured on three case studies, representing typical tariff schemes observed in recent CSP projects plus a spot market price scenario. The analysis has been carried out using an annual performance model and a standard dispatch optimization algorithm based on dynamic programming. The dispatch optimizer has been demonstrated to be a key requisite to maximize the annual revenues depending on the price scenario, harvesting the maximum potential out of the CSP plant. Forecasting uncertainty affects the revenue enhancement outcome of a dispatch optimizer depending on the error level and the price function. Results show that forecasting accuracy of direct solar irradiance (DNI) is important to make best use of an optimized dispatch but also that a higher number of calculation updates can partially compensate this uncertainty. Improvement in revenues can be significant depending on the price profile and the optimal operation strategy. Pathways to achieve better performance are presented by having more updates both by repeatedly generating new optimized trajectories but also more often updating weather forecasts. This study shows the importance of working on DNI weather forecasting for revenue enhancement as well as selecting weather services that can provide multiple updates a day and probabilistic forecast information.

  20. PVMirrors: Hybrid PV/CSP collectors that enable lower LCOEs

    Science.gov (United States)

    Fisher, Kate; Yu, Zhengshan Jason; Striling, Rob; Holman, Zachary

    2017-06-01

    The primary challenge with concentrating solar power (CSP) is that the conversion efficiency is low—and the cost high—compared to that of photovoltaics (PV), and the primary challenge with PV is that the energy generated cannot be stored cost effectively. We introduce a technology that hybridizes CSP and PV, resulting in power plants with high energy conversion efficiency and affordable storage. This is accomplished by replacing silvered troughs (or heliostat facets) with "PVMirrors" that and direct photons of each wavelength to the converter (PV or thermal) that may best use them. A PVMirror looks like a curved PV module that includes a spectrum-splitting dichroic mirror film; this film, which is the heart of the technology, transmits near-infrared light to the underlying silicon PV cells while reflecting both longer and shorter wavelengths to a thermal absorber tube. This paper investigates the optical performance of dichroic mirror film, the specularity of PVMirrors, and the anticipated levelized cost of energy (LCOE) from a PVMirror power plant. PVMirrors are found to decrease LCOE by more than 15% relative to CSP while retaining full dispatchability.

  1. Psychometric properties and factor structure of the 13-item satisfaction with daily occupations scale when used with people with mental health problems.

    Science.gov (United States)

    Eklund, Mona; Bäckström, Martin; Eakman, Aaron M

    2014-12-24

    In mental health care practice and research it is increasingly recognized that clients' subjective perceptions of everyday occupations, such as satisfaction, are important in recovery from mental illness. Instruments thus need to be developed to assess satisfaction with everyday occupations. The aim of the present study was to assess psychometric properties of the 13-item Satisfaction with Daily Occupation (SDO-13) when used with people with mental health problems, including its internal consistency, factor structure, construct validity and whether the scale produced ceiling or floor effects. An additional question concerned if the factor structure varied whether the participants were, or were not, presently engaged in the activity they rated. The interview-based SDO-13 includes items pertaining to work/studies, leisure, home maintenance, and self-care occupations. Whether the person currently performs an occupation or not, he/she is asked to indicate his/her satisfaction with that occupation. The SDO-13 was completed with 184 persons with mental illness. Residual variables were created to remove the variation linked with currently performing the targeted occupation or not and to assess the factor structure of the SDO-13. The indicators of general satisfaction with daily occupations, self-esteem and global functioning were used to assess construct validity. The statistical methods included tests of homogeneity, confirmatory factor analysis and Pearson correlations. The internal consistency was satisfactory at 0.79. A three-factor solution indicated that the construct behind the SDO-13 was composed of three facets; Taking care of oneself and the home, Work and studies, and Leisure and relaxation. The same factor structure was valid for both original scores and the residuals. An expected pattern of correlations with the indicators was mainly found, suggesting basic construct validity. No ceiling or floor effects were found. Taken together, the findings suggest the

  2. A Manganese Catalyst for Highly Reactive Yet Chemoselective Intramolecular C(sp3)—H Amination

    Science.gov (United States)

    Paradine, Shauna M.; Griffin, Jennifer R.; Zhao, Jinpeng; Petronico, Aaron L.; Miller, Shannon M.; White, M. Christina

    2016-01-01

    C—H bond oxidation reactions underscore the existing paradigm wherein high reactivity and high selectivity are inversely correlated. The development of catalysts capable of oxidizing strong aliphatic C(sp3)—H bonds while displaying chemoselectivity (i.e. tolerance of more oxidizable functionality) remains an unsolved problem. Herein, we describe a catalyst, manganese tert-butylphthalocyanine [Mn(tBuPc)], that is an outlier to the reactivity-selectivity paradigm. It is unique in its capacity to functionalize all types of C(sp3)—H bonds intramolecularly, while displaying excellent chemoselectivity in the presence of π-functionality. Mechanistic studies indicate that [Mn(tBuPc)] transfers bound nitrenes to C(sp3)—H bonds via a pathway that lies between concerted C—H insertion, observed with reactive noble metals (e.g. rhodium), and stepwise radical C—H abstraction/rebound, observed with chemoselective base metals (e.g. iron). Rather than achieving a blending of effects, [Mn(tBuPc)] aminates even 1° aliphatic and propargylic C—H bonds, reactivity and selectivity unusual for previously known catalysts. PMID:26587714

  3. The relations of Arab Jordanian adolescents' perceived maternal parenting to teacher-rated adjustment and problems: the intervening role of perceived need satisfaction.

    Science.gov (United States)

    Ahmad, Ikhlas; Vansteenkiste, Maarten; Soenens, Bart

    2013-01-01

    Although the effects of important parenting dimensions, such as responsiveness and psychological control, are well documented among Western populations, research has only recently begun to systematically identify psychological processes that may account for the cross-cultural generalization of these effects. A first aim of this study was to examine whether perceived maternal responsiveness and psychological control would relate differentially to teacher ratings of adolescent adjustment in a vertical-collectivist society (i.e., Jordan). The most important aim of this study was to examine, on the basis of self-determination theory, whether these associations would be accounted for by perceived satisfaction of the basic psychological needs for autonomy, competence, and relatedness. Results in a large sample of Jordanian adolescents (N = 545) showed that perceived maternal psychological control and responsiveness yielded, respectively, a positive and negative association with teacher-rated problems, whereas psychological control was negatively related to teacher-rated adjustment. Further, these 2 parenting dimensions related to adjustment and problems via perceived satisfaction of the basic psychological needs for autonomy and competence (but not relatedness). The findings are discussed in light of the ongoing debate between universalistic and relativistic perspectives on parenting and adolescent adjustment.

  4. Thermal energy storage for CSP (Concentrating Solar Power

    Directory of Open Access Journals (Sweden)

    Py Xavier

    2017-01-01

    Full Text Available The major advantage of concentrating solar power before photovoltaic is the possibility to store thermal energy at large scale allowing dispatchability. Then, only CSP solar power plants including thermal storage can be operated 24 h/day using exclusively the solar resource. Nevertheless, due to a too low availability in mined nitrate salts, the actual mature technology of the two tanks molten salts cannot be applied to achieve the expected international share in the power production for 2050. Then alternative storage materials are under studies such as natural rocks and recycled ceramics made from industrial wastes. The present paper is a review of those alternative approaches.

  5. Thermal energy storage for CSP (Concentrating Solar Power)

    Science.gov (United States)

    Py, Xavier; Sadiki, Najim; Olives, Régis; Goetz, Vincent; Falcoz, Quentin

    2017-07-01

    The major advantage of concentrating solar power before photovoltaic is the possibility to store thermal energy at large scale allowing dispatchability. Then, only CSP solar power plants including thermal storage can be operated 24 h/day using exclusively the solar resource. Nevertheless, due to a too low availability in mined nitrate salts, the actual mature technology of the two tanks molten salts cannot be applied to achieve the expected international share in the power production for 2050. Then alternative storage materials are under studies such as natural rocks and recycled ceramics made from industrial wastes. The present paper is a review of those alternative approaches.

  6. HEAT TRANSFER ANALYSIS DURING ROLLING OF THIN SLAB IN CSP

    Institute of Scientific and Technical Information of China (English)

    W.F. Wu; Y.H. Feng; X.X. Zhang

    2006-01-01

    A mathematical model has been built to numerically predict the thermal history of thin slab during CSP (compact strip process) rolling. To estimate the temperature distribution in the slab more accurately, the mathematical model combines heat transfer in the slab, in the roll, and at the roll-slab interface during bite. The numerical results agree with on-site running data, which proves the reliability of the mathematical model. The results show that roll chilling has a significant effect on the temperature distribution in the slab.

  7. Castable Cement Can Prevent Molten-Salt Corrosion in CSP

    Energy Technology Data Exchange (ETDEWEB)

    2016-09-01

    NREL's study demonstrated that castable cements on metals are a protective barrier that can prevent permeation of molten salts toward metallic surfaces. The silica-based castable cement Aremco 645-N, when sprayed with boron nitride, can protect containment metallic alloys from attack by molten chlorides at high temperatures (650 degrees C) in short-term tests. Improved thermal energy storage technology could increase the performance of CSP and reduce costs, helping to reach the goal of the U.S. Department of Energy's SunShot Initiative to make solar cost-competitive with other non-renewable sources of electricity by 2020.

  8. Statistical analysis of CSP plants by simulating extensive meteorological series

    Science.gov (United States)

    Pavón, Manuel; Fernández, Carlos M.; Silva, Manuel; Moreno, Sara; Guisado, María V.; Bernardos, Ana

    2017-06-01

    The feasibility analysis of any power plant project needs the estimation of the amount of energy it will be able to deliver to the grid during its lifetime. To achieve this, its feasibility study requires a precise knowledge of the solar resource over a long term period. In Concentrating Solar Power projects (CSP), financing institutions typically requires several statistical probability of exceedance scenarios of the expected electric energy output. Currently, the industry assumes a correlation between probabilities of exceedance of annual Direct Normal Irradiance (DNI) and energy yield. In this work, this assumption is tested by the simulation of the energy yield of CSP plants using as input a 34-year series of measured meteorological parameters and solar irradiance. The results of this work show that, even if some correspondence between the probabilities of exceedance of annual DNI values and energy yields is found, the intra-annual distribution of DNI may significantly affect this correlation. This result highlights the need of standardized procedures for the elaboration of representative DNI time series representative of a given probability of exceedance of annual DNI.

  9. Evaluation of parasitic consumption for a CSP plant

    Science.gov (United States)

    Ramorakane, Relebohile John; Dinter, Frank

    2016-05-01

    With the continuous development and desire to build alternative effective and efficient power plants, Concentrated Solar Power (CSP) plants (and more specifically the Parabolic Trough CSP Plants) have proven to be one of the alternative energy resources for the future. On this regard more emphasis and research is being employed to better this power plant technology, where one of the main challenges to these plants is to improve their efficiency by optimizing the parasitic load, wherein one of the major causes of the power plants' reduced overall efficiency arises from their parasitic load consumption. This project is therefore aimed at evaluating the parasitic load on Andasol 3 Power Plant, which is a 50 MW Parabolic Trough Power Plant with a 7.5 hours of full load storage system. It was hence determined that the total power plant's parasitic load consumption is about 12% in summer season and between 16% and 24% in winter season. In an effort to improve the power plant's efficiency, a couple of measures to reduce the parasitic load consumption were recommended, and also an alternative and cheaper source of parasitic load feeding plant, during the day (when the parasitic load consumption is highest) was proposed/recommended.

  10. Blended learning positively affects students' satisfaction and the role of the tutor in the problem-based learning process: results of a mixed-method evaluation.

    Science.gov (United States)

    Woltering, Vanessa; Herrler, Andreas; Spitzer, Klaus; Spreckelsen, Cord

    2009-12-01

    Problem-based learning (PBL) is an established didactic approach in medical education worldwide. The impact of PBL depends on the tutors' quality and the students' motivation. To enhance students' motivation and satisfaction and to overcome the problems with the changing quality of tutors, online learning and face-to-face classes were systematically combined resulting in a blended learning scenario (blended problem-based learning--bPBL). The study aims at determining whether bPBL increases the students' motivation and supports the learning process with respect to the students' cooperation, their orientation, and more reliable tutoring. The blended PBL was developed in a cooperation of students and teachers. The well-established Seven Jump-scheme of PBL was carefully complemented by eLearning modules. On the first training day of bPBL the students start to work together with the online program, but without a tutor, on the final training day the tutor participates in the meeting for additional help and feedback. The program was evaluated by a mixed-method study. The traditional PBL course was compared with the blended PBL by means of qualitative and quantitative questionnaires, standardized group interviews, and students' test results. In addition log-files were analyzed. A total of 185 third-year students and 14 tutors took part in the study. Motivation, subjective learning gains and satisfaction achieved significantly higher ratings by the bPBL students compared with the students learning by traditional PBL. The tutors' opinion and the test results showed no differences between the groups. Working with the web-based learning environment was assessed as very good by the students. According to the log-file analysis, the web-based learning module was frequently used and improved the cooperation during the self-directed learning.

  11. Recent advances in C(sp3)–H bond functionalization via metal–carbene insertions

    Science.gov (United States)

    Wang, Bo; Qiu, Di; Zhang, Yan

    2016-01-01

    Summary The recent development of intermolecular C–H insertion in the application of C(sp3)–H bond functionalizations, especially for light alkanes, is reviewed. The challenging problem of regioselectivity in C–H bond insertions has been tackled by the use of sterically bulky metal catalysts, such as metal porphyrins and silver(I) complexes. In some cases, high regioselectivity and enantioselectivity have been achieved in the C–H bond insertion of small alkanes. This review highlights the most recent accomplishments in this field. PMID:27340470

  12. Recent advances in C(sp3–H bond functionalization via metal–carbene insertions

    Directory of Open Access Journals (Sweden)

    Bo Wang

    2016-04-01

    Full Text Available The recent development of intermolecular C–H insertion in the application of C(sp3–H bond functionalizations, especially for light alkanes, is reviewed. The challenging problem of regioselectivity in C–H bond insertions has been tackled by the use of sterically bulky metal catalysts, such as metal porphyrins and silver(I complexes. In some cases, high regioselectivity and enantioselectivity have been achieved in the C–H bond insertion of small alkanes. This review highlights the most recent accomplishments in this field.

  13. Patient satisfaction

    Directory of Open Access Journals (Sweden)

    Bhanu Prakash

    2010-01-01

    Full Text Available Patient satisfaction is an important and commonly used indicator for measuring the quality in health care. Patient satisfaction affects clinical outcomes, patient retention, and medical malpractice claims. It affects the timely, efficient, and patient-centered delivery of quality health care. Patient satisfaction is thus a proxy but a very effective indicator to measure the success of doctors and hospitals. This article discusses as to how to ensure patient satisfaction in dermatological practice.

  14. Job satisfaction

    OpenAIRE

    Podroužková, Lucie

    2013-01-01

    Bachelor thesis deals with job satisfaction. It is often given to a context with the attitude to work which is very much connected to job satisfaction. Thesis summarises all the pieces of information about job satisfacion, factors that affect it negatively and positively, interconnection of work satisfaction and work motivation, work behaviour and performance of workers, relationship of a man and work and at last general job satisfaction and its individual aspects. In the thesis I shortly pay...

  15. The role of CSP in Brazil: A multi-model analysis

    Science.gov (United States)

    Soria, Rafael; Lucena, André F. P.; Tomaschek, Jan; Fichter, Tobias; Haasz, Thomas; Szklo, Alexandre; Schaeffer, Roberto; Rochedo, Pedro; Fahl, Ulrich; Kern, Jürgen; Hoffmann, Susanne

    2016-05-01

    MESSAGE, TIMES and REMIX-CEM are potential tools for modelling a larger penetration of variable renewable energy (VRE) into the Brazilian power system. They also allow devising the opportunities that concentrated solar power (CSP) plants offer to the power system and to the wider energy system. There are different opportunities for CSP in Brazil in the short and medium term, consolidating this technology as a feasible alternative for greenhouse gas (GHG) mitigation in Brazil. This work verified that CSP is a cost-effective option only under very stringent mitigation scenarios (4DS and 2DS) and when carbon capture and storage (CCS) is not available. Still, according to the findings of REMIX-CEM-B, CSP can provide firm energy and dispatchable capacity in the Northeast region of Brazil, optimally complementing wind and PV generation. Moreover, CSP can offer additional flexibility to the Northeast power system, especially during winter and after 2030.

  16. Genetics of adult plant stripe rust resistance in CSP44, a selection from Australian wheat

    Indian Academy of Sciences (India)

    Renu Khanna; U. K. Bansal; R. G. Saini

    2005-12-01

    Wheat line CSP44, a selection from an Australian bread wheat cultivar Condor, has shown resistance to stripe rust in India since the last twenty years. Seedlings and adult plants of CSP44 showed susceptible infection types against stripe rust race 46S119 but displayed average terminal disease severity of 2.67 on adult plants against this race as compared to 70.33 of susceptible Indian cultivar, WL711. This suggests the presence of nonhypersensitive adult plant stripe rust resistance in the line CSP44. The evaluation of F1, F2 and F3 generations and F6 SSD families from the cross of CSP44 with susceptible wheat cultivar WL711 for stripe rust severity indicated that the resistance in CSP44 is based on two genes showing additive effect. One of these two genes is Yr18 and the second gene is not yet described.

  17. Biotype Characterization, Developmental Profiling, Insecticide Response and Binding Property of Bemisia tabaci Chemosensory Proteins: Role of CSP in Insect Defense

    Science.gov (United States)

    Liu, Guoxia; Ma, Hongmei; Xie, Hongyan; Xuan, Ning; Guo, Xia; Fan, Zhongxue; Rajashekar, Balaji; Arnaud, Philippe; Offmann, Bernard; Picimbon, Jean-François

    2016-01-01

    Chemosensory proteins (CSPs) are believed to play a key role in the chemosensory process in insects. Sequencing genomic DNA and RNA encoding CSP1, CSP2 and CSP3 in the sweet potato whitefly Bemisia tabaci showed strong variation between B and Q biotypes. Analyzing CSP-RNA levels showed not only biotype, but also age and developmental stage-specific expression. Interestingly, applying neonicotinoid thiamethoxam insecticide using twenty-five different dose/time treatments in B and Q young adults showed that Bemisia CSP1, CSP2 and CSP3 were also differentially regulated over insecticide exposure. In our study one of the adult-specific gene (CSP1) was shown to be significantly up-regulated by the insecticide in Q, the most highly resistant form of B. tabaci. Correlatively, competitive binding assays using tryptophan fluorescence spectroscopy and molecular docking demonstrated that CSP1 protein preferentially bound to linoleic acid, while CSP2 and CSP3 proteins rather associated to another completely different type of chemical, i.e. α-pentyl-cinnamaldehyde (jasminaldehyde). This might indicate that some CSPs in whiteflies are crucial to facilitate the transport of fatty acids thus regulating some metabolic pathways of the insect immune response, while some others are tuned to much more volatile chemicals known not only for their pleasant odor scent, but also for their potent toxic insecticide activity. PMID:27167733

  18. Biotype Characterization, Developmental Profiling, Insecticide Response and Binding Property of Bemisia tabaci Chemosensory Proteins: Role of CSP in Insect Defense.

    Directory of Open Access Journals (Sweden)

    Guoxia Liu

    Full Text Available Chemosensory proteins (CSPs are believed to play a key role in the chemosensory process in insects. Sequencing genomic DNA and RNA encoding CSP1, CSP2 and CSP3 in the sweet potato whitefly Bemisia tabaci showed strong variation between B and Q biotypes. Analyzing CSP-RNA levels showed not only biotype, but also age and developmental stage-specific expression. Interestingly, applying neonicotinoid thiamethoxam insecticide using twenty-five different dose/time treatments in B and Q young adults showed that Bemisia CSP1, CSP2 and CSP3 were also differentially regulated over insecticide exposure. In our study one of the adult-specific gene (CSP1 was shown to be significantly up-regulated by the insecticide in Q, the most highly resistant form of B. tabaci. Correlatively, competitive binding assays using tryptophan fluorescence spectroscopy and molecular docking demonstrated that CSP1 protein preferentially bound to linoleic acid, while CSP2 and CSP3 proteins rather associated to another completely different type of chemical, i.e. α-pentyl-cinnamaldehyde (jasminaldehyde. This might indicate that some CSPs in whiteflies are crucial to facilitate the transport of fatty acids thus regulating some metabolic pathways of the insect immune response, while some others are tuned to much more volatile chemicals known not only for their pleasant odor scent, but also for their potent toxic insecticide activity.

  19. Un criterio para seleccionar operadores genéticos para resolver CSP

    OpenAIRE

    Riff Rojas, María Cristina

    1998-01-01

    Nuestro interés es definir algoritmos evolucionistas para la resolución de problemas de satisfacción de restricciones (CSP), los cuales tomen en cuenta tanto las ventajas de los métodos tradicionales de resolución de CSP, así como las características propias de este tipo de problemas. En este contexto, se propone en el presente artículo un criterio para poder evaluar la performance de los operadores gen'eticos dentro de algoritmos evolucionistas que resuelven CSP.

  20. An investigation into multi-dimensional prediction models to estimate the pose error of a quadcopter in a CSP plant setting

    Science.gov (United States)

    Lock, Jacobus C.; Smit, Willie J.; Treurnicht, Johann

    2016-05-01

    The Solar Thermal Energy Research Group (STERG) is investigating ways to make heliostats cheaper to reduce the total cost of a concentrating solar power (CSP) plant. One avenue of research is to use unmanned aerial vehicles (UAVs) to automate and assist with the heliostat calibration process. To do this, the pose estimation error of each UAV must be determined and integrated into a calibration procedure. A computer vision (CV) system is used to measure the pose of a quadcopter UAV. However, this CV system contains considerable measurement errors. Since this is a high-dimensional problem, a sophisticated prediction model must be used to estimate the measurement error of the CV system for any given pose measurement vector. This paper attempts to train and validate such a model with the aim of using it to determine the pose error of a quadcopter in a CSP plant setting.

  1. Improved drought tolerance in wheat plants overexpressing a synthetic bacterial cold shock protein gene SeCspA

    Science.gov (United States)

    Yu, Tai-Fei; Xu, Zhao-Shi; Guo, Jin-Kao; Wang, Yan-Xia; Abernathy, Brian; Fu, Jin-Dong; Chen, Xiao; Zhou, Yong-Bin; Chen, Ming; Ye, Xing-Guo; Ma, You-Zhi

    2017-01-01

    Cold shock proteins (CSPs) enhance acclimatization of bacteria to adverse environmental circumstances. The Escherichia coli CSP genes CspA and CspB were modified to plant-preferred codon sequences and named as SeCspA and SeCspB. Overexpression of exogenous SeCspA and SeCspB in transgenic Arabidopsis lines increased germination rates, survival rates, and increased primary root length compared to control plants under drought and salt stress. Investigation of several stress-related parameters in SeCspA and SeCspB transgenic wheat lines indicated that these lines possessed stress tolerance characteristics, including lower malondialdehyde (MDA) content, lower water loss rates, lower relative Na+ content, and higher chlorophyll content and proline content than the control wheat plants under drought and salt stresses. RNA-seq and qRT-PCR expression analysis showed that overexpression of SeCsp could enhance the expression of stress-responsive genes. The field experiments showed that the SeCspA transgenic wheat lines had great increases in the 1000-grain weight and grain yield compared to the control genotype under drought stress conditions. Significant differences in the stress indices revealed that the SeCspA transgenic wheat lines possessed significant and stable improvements in drought tolerance over the control plants. No such improvement was observed for the SeCspB transgenic lines under field conditions. Our results indicated that SeCspA conferred drought tolerance and improved physiological traits in wheat plants. PMID:28281578

  2. Direct Acylation of C(sp(3))-H Bonds Enabled by Nickel and Photoredox Catalysis.

    Science.gov (United States)

    Joe, Candice L; Doyle, Abigail G

    2016-03-14

    Using nickel and photoredox catalysis, the direct functionalization of C(sp(3))-H bonds of N-aryl amines by acyl electrophiles is described. The method affords a diverse range of α-amino ketones at room temperature and is amenable to late-stage coupling of complex and biologically relevant groups. C(sp(3))-H activation occurs by photoredox-mediated oxidation to generate α-amino radicals which are intercepted by nickel in catalytic C(sp(3))-C coupling. The merger of these two modes of catalysis leverages nickel's unique properties in alkyl cross-coupling while avoiding limitations commonly associated with transition-metal-mediated C(sp(3))-H activation, including requirements for chelating directing groups and high reaction temperatures.

  3. Sandia capabilities for the measurement, characterization, and analysis of heliostats for CSP.

    Energy Technology Data Exchange (ETDEWEB)

    Andraka, Charles E.; Christian, Joshua Mark; Ghanbari, Cheryl M.; Gill, David Dennis; Ho, Clifford Kuofei; Kolb, William J.; Moss, Timothy A.; Smith, Edward J.; Yellowhair, Julius

    2013-07-01

    The Concentrating Solar Technologies Organization at Sandia National Laboratories has a long history of performing important research, development, and testing that has enabled the Concentrating Solar Power Industry to deploy full-scale power plants. Sandia continues to pursue innovative CSP concepts with the goal of reducing the cost of CSP while improving efficiency and performance. In this pursuit, Sandia has developed many tools for the analysis of CSP performance. The following capabilities document highlights Sandias extensive experience in the design, construction, and utilization of large-scale testing facilities for CSP and the tools that Sandia has created for the full characterization of heliostats. Sandia has extensive experience in using these tools to evaluate the performance of novel heliostat designs.

  4. Value as a parameter to consider in operational strategies for CSP plants

    Science.gov (United States)

    de Meyer, Oelof; Dinter, Frank; Govender, Saneshan

    2017-06-01

    This paper introduced a value parameter to consider when analyzing operational strategies for CSP plants. The electric system in South Africa, used as case study, is severely constrained with an influx of renewables in the early phase of deployment. The energy demand curve for the system is analyzed showing the total wind and solar photovoltaic contributions for winter and summer. Due to the intermittent nature and meteorological operating conditions of wind and solar photovoltaic plants, the value of CSP plants within the electric system is introduced. Analyzing CSP plants based on the value parameter alone will remain only a philosophical view. Currently there is no quantifiable measure to translate the philosophical view or subjective value and it solely remains the position of the stakeholder. By introducing three other parameters, Cost, Plant and System to a holistic representation of the Operating Strategies of generation plants, the Value parameter can be translated into a quantifiable measure. Utilizing the country's current procurement program as case study, CSP operating under the various PPA within the Bid Windows are analyzed. The Value Cost Plant System diagram developed is used to quantify the value parameter. This paper concluded that no value is obtained from CSP plants operating under the Bid Window 1 & 2 Power Purchase Agreement. However, by recognizing the dispatchability potential of CSP plants in Bid Window 3 & 3.5, the value of CSP in the electric system can be quantified utilizing Value Added Relationship VCPS-diagram. Similarly ancillary services to the system were analyzed. One of the relationships that have not yet been explored within the industry is an interdependent relationship. It was emphasized that the cost and value structure is shared between the plant and system. Although this relationship is functional when the plant and system belongs to the same entity, additional value is achieved by marginalizing the cost structure. A

  5. LCOE reduction for parabolic trough CSP: Innovative solar receiver with improved performance at medium temperature

    Science.gov (United States)

    Stollo, A.; Chiarappa, T.; D'Angelo, A.; Maccari, A.; Matino, F.

    2016-05-01

    Concentrated Solar Power (CSP) applications represent an effective possibility to gain energy from the Sun; however, the lasting CSP market crisis compels continuous improvements in terms of cost reduction and performance increase. Focused on parabolic trough technology, this paper describes the innovation studied and realized on solar receivers to gain optimized optical performance while increasing the production versatility, hence boosting the solar plant efficiency and finally reducing the estimated LCOE.

  6. The techno-economic optimization of a 100MWe CSP-desalination plant in Arandis, Namibia

    Science.gov (United States)

    Dall, Ernest P.; Hoffmann, Jaap E.

    2017-06-01

    Energy is a key factor responsible for a country's economic growth and prosperity. It is closely related to the main global challenges namely: poverty mitigation, global environmental change and food and water security [1.]. Concentrating solar power (CSP) is steadily gaining more market acceptance as the cost of electricity from CSP power plants progressively declines. The cogeneration of electricity and water is an attractive prospect for future CSP developments as the simultaneous production of power and potable water can have positive economic implications towards increasing the feasibility of CSP plant developments [2.]. The highest concentrations of direct normal irradiation are located relatively close to Western coastal and Middle-Eastern North-African regions. It is for this reason worthwhile investigating the possibility of CSP-desalination (CSP+D) plants as a future sustainable method for providing both electricity and water with significantly reduced carbon emissions and potential cost reductions. This study investigates the techno-economic feasibility of integrating a low-temperature thermal desalination plant to serve as the condenser as opposed to a conventional dry-cooled CSP plant in Arandis, Namibia. It outlines the possible benefits of the integration CSP+D in terms of overall cost of water and electricity. The high capital costs of thermal desalination heat exchangers as well as the pumping of seawater far inland is the most significant barrier in making this approach competitive against more conventional desalination methods such as reverse osmosis. The compromise between the lowest levelized cost of electricity and water depends on the sizing and the top brine temperature of the desalination plant.

  7. Cost-benefit analysis for the installation of cogeneration CSP technology in Cyprus

    Directory of Open Access Journals (Sweden)

    Andreas Poullikkas

    2013-12-01

    Full Text Available The purpose of this work is to investigate whether the installation of an innovative cogeneration of electricity and desalinated water (DSW with concentrated solar power (CSP technology in Cyprus is economically feasible. The study takes into account the following generating technologies, (a CSP-DSW technology 4 MWe, (b CSP-DSW technology 10 MWe, (c CSP-DSW technology 25 MWe and (d CSP-DSW technology 50 MWe with or without CO2 trading for two different cases of electricity purchasing tariff. For all above cases the electricity unit cost or benefit before tax, as well as internal rate of return (IRR and payback period (PBP are calculated. The results indicate that the electricity unit cost or benefit for both cases of electricity purchasing tariff are decreased or increased with the increase of the capacity factor and the capacity size of the plant. Also, the additional benefit due to the CO2 ETS price of 10 €/tCO2 for all scenarios is 0.8 €c/kWh. Specifically, for the electricity purchasing tariff of 26 €c/kWh case, the investment in CSP-DSW technology for every capacity size is very attractive, since, the CSP-DSW scenarios have high after tax IRR and low PBP. Despite the lower electricity unit cost benefit in the case of electricity purchasing tariff of 12.83 €c/kWh compared to that of the 26 €c/kWh case, which in some cases there is cost and not benefit, for CSP-DSW plants of 25 MWe and 50 MWe, the investment in this technology is still attractive.

  8. Customer behaviour and student satisfaction

    Directory of Open Access Journals (Sweden)

    Enache, I. C.

    2011-01-01

    Full Text Available Having to overcome new challenges, the higher education institutions need to understand their customer behaviour. The students’ satisfaction is becoming an important objective for universities and society as the role of the tertiary level institution is being questioned. The aim of this paper is to provide a concrete marketing approach to the student satisfaction problem. The literature review section aims to present resources that deliver relevant and updated information about the marketing perspectives on student satisfaction. A short survey is developed in order to provide insights on student behaviour and student satisfaction.

  9. Comparing the net cost of CSP-TES to PV deployed with battery storage

    Science.gov (United States)

    Jorgenson, Jennie; Mehos, Mark; Denholm, Paul

    2016-05-01

    Concentrated solar power with thermal energy storage (CSP-TES) is a unique source of renewable energy in that its energy can be shifted over time and it can provide the electricity system with dependable generation capacity. In this study, we provide a framework to determine if the benefits of CSP-TES (shiftable energy and the ability to provide firm capacity) exceed the benefits of PV and firm capacity sources such as long-duration battery storage or conventional natural gas combustion turbines (CTs). The results of this study using current capital cost estimates indicate that a combination of PV and conventional gas CTs provides a lower net cost compared to CSP-TES and PV with batteries. Some configurations of CSP-TES have a lower net cost than PV with batteries for even the lowest battery cost estimate. Using projected capital cost targets, however, some configurations of CSP-TES have a lower net cost than PV with either option for even the lowest battery cost estimate. The net cost of CSP-TES varies with configuration, and lower solar multiples coupled with less storage are more attractive at current cost levels, due to high component costs. However, higher solar multiples show a lower net cost using projected future costs for heliostats and thermal storage materials.

  10. Comparing the Net Cost of CSP-TES to PV Deployed with Battery Storage

    Energy Technology Data Exchange (ETDEWEB)

    Jorgenson, Jennie; Mehos, Mark; Denholm, Paul

    2016-05-31

    Concentrated solar power with thermal energy storage (CSP-TES) is a unique source of renewable energy in that its energy can be shifted over time and it can provide the electricity system with dependable generation capacity. In this study, we provide a framework to determine if the benefits of CSP-TES (shiftable energy and the ability to provide firm capacity) exceed the benefits of PV and firm capacity sources such as long-duration battery storage or conventional natural gas combustion turbines (CTs). The results of this study using current capital cost estimates indicate that a combination of PV and conventional gas CTs provides a lower net cost compared to CSP-TES and PV with batteries. Some configurations of CSP-TES have a lower net cost than PV with batteries for even the lowest battery cost estimate. Using projected capital cost targets, however, some configurations of CSP-TES have a lower net cost than PV with either option for even the lowest battery cost estimate. The net cost of CSP-TES varies with configuration, and lower solar multiples coupled with less storage are more attractive at current cost levels, due to high component costs. However, higher solar multiples show a lower net cost using projected future costs for heliostats and thermal storage materials.

  11. Expression of Escherichia coli cspA during early exponential growth at 37 °C.

    Science.gov (United States)

    Brandi, Anna; Pon, Cynthia L

    2012-01-25

    CspA is a small (7.4 kDa) nucleic acid binding protein of Escherichia coli whose expression is stimulated after cold-stress but whose level is also extraordinarily high during the early phase of growth of non-stressed cells. In this study the relationship existing between cspA transcription/translation on the one hand and the acquisition of critical mass for cell division and chromosome replication, on the other, in stationary phase cells subjected to a nutritional up-shift at 37 °C has been analyzed. Measurements of optical density and viable counts, pulse-chase, real-time PCR and immunodetection experiments, as well as cytofluorimetric and DNA duplication analyses show that synthesis of new CspA molecules at 37 °C is not only restricted to the lag phase ensuing the nutritional up-shift, but continues also during the first stages of logarithmic growth, when cells have already started dividing; although the early synthesized molecules are diluted by the following cell divisions and new synthesis occurs at an extremely low level, cspA mRNA and CspA continue to be present. A possible explanation for the apparent paradox that cspA is activated not only following cold stress, but also under non-stress and other stress conditions which entail a down-regulation of bulk gene expression and protein synthesis is presented.

  12. An investigation on factors influencing dust accumulation on CSP mirrors

    Science.gov (United States)

    Pennetta, S.; Yu, S.; Borghesani, P.; Cholette, M.; Barry, John; Guan, Z.

    2016-05-01

    The profitability of a CSP plant is highly affected by the efficiency of the solar field: it is essential to maintain mirrors' reflectivity at high level to avoid thermal power loss. Dust fouling is the main cause of reflectivity loss and cleaning of mirrors is a crucial activity to restore economical level of reflectivity. However, the high cost of cleaning operations requires the study and identification of a balanced plan for the dust removal. The dust generation and transport to the plant site is the first mechanism that needs to be modelled to identify the optimal schedule for cleaning operations and it is highly dependent on weather conditions. Several studies have suggested a dependency of reflectors performance with humidity level, frequency of rainfalls, wind and mirrors' tilting angle, however rarely quantitative correlation studies have been performed to validate these hypotheses. The aim of this research is to provide an in-depth insight on interaction between the main parameters and airborne dust concentration, providing quantitative information for the development of future mirror dusting models. Outcomes evidence the crucial role of high winds responsible of dust concentration in conjunction with higher wind direction frequencies in the range 60-120°. Actually, in this scenario a perfectly monotonic increase of dust accumulation in the air has been observed with high correspondence of wind direction. A very low effect is provided by the ambient temperature as the contribution of the barometric pressure.

  13. Expression of csp genes in E. coli K-12 in defined rich and defined minimal media during normal growth, and after cold-shock.

    Science.gov (United States)

    Czapski, Tiffaney R; Trun, Nancy

    2014-08-15

    Cold-shock proteins (Csps) are a family of small nucleic acid-binding proteins found in 72% of sequenced bacterial genomes. Where it has been examined, at least one csp gene is required for cell viability. In Escherichia coli K-12, there are nine homologous csp genes named A-I. Regulation studies performed on individual members of this family have suggested that cspA, cspB, cspG, and cspI are cold-induced, cspC and cspE are constitutively expressed, cspD is stationary phase induced, and the induction patterns for cspF and cspH have yet to be determined. Aside from microarray studies, transcript levels from all nine csp genes have never been assayed using the same technique or in the same cells. The purpose of this study was to use quantitative RT-PCR to establish csp expression patterns for all nine csp genes at 37°C in defined rich and defined minimal media, and after a shift to 15°C for either 1h or 4h. We found that transcript levels for each of the csp genes changed throughout the growth curve. Transcripts for cspA, -B, and -E were more abundant than those detected for the other csp genes in defined rich medium. cspE mRNA levels in defined minimal medium were drastically higher than mRNA for the other csp genes. Of the nine csp genes, only cspI showed a significant increase in mRNA accumulation after cold-shock in defined rich medium. When mRNA accumulation was compared across the nine csp genes, there were more cspE transcripts in the cell than cspA, -B, -G, or -I transcripts after 1h cold-shock in either defined rich or defined minimal media. In defined minimal medium, transcription of cspA, -B, -G, and -I was induced after cold-shock. Copyright © 2014 Elsevier B.V. All rights reserved.

  14. Customer satisfaction.

    Science.gov (United States)

    Vukmir, Rade B

    2006-01-01

    This paper seeks to present an analysis of the literature examining objective information concerning the subject of customer service, as it applies to the current medical practice. Hopefully, this information will be synthesized to generate a cogent approach to correlate customer service with quality. Articles were obtained by an English language search of MEDLINE from January 1976 to July 2005. This computerized search was supplemented with literature from the author's personal collection of peer-reviewed articles on customer service in a medical setting. This information was presented in a qualitative fashion. There is a significant lack of objective data correlating customer service objectives, patient satisfaction and quality of care. Patients present predominantly for the convenience of emergency department care. Specifics of satisfaction are directed to the timing, and amount of "caring". Demographic correlates including symptom presentation, practice style, location and physician issues directly impact on satisfaction. It is most helpful to develop a productive plan for the "difficult patient", emphasizing communication and empathy. Profiling of the customer satisfaction experience is best accomplished by examining the specifics of satisfaction, nature of the ED patient, demographic profile, symptom presentation and physician interventions emphasizing communication--especially with the difficult patient. The current emergency medicine customer service dilemmas are a complex interaction of both patient and physician factors specifically targeting both efficiency and patient satisfaction. Awareness of these issues particular to the emergency patient can help to maximize efficiency, minimize subsequent medicolegal risk and improve patient care if a tailored management plan is formulated.

  15. Role of csp genes in NaCl, pH, and ethanol stress response and motility in Clostridium botulinum ATCC 3502.

    Science.gov (United States)

    Derman, Yağmur; Söderholm, Henna; Lindström, Miia; Korkeala, Hannu

    2015-04-01

    Clostridium botulinum is a notable food pathogen and responsible for botulism due to production of botulinum neurotoxin. Strains of C. botulinum can adapt to and survive in stress conditions and food processing. The cold shock protein coding genes (csp) are involved in growth at low temperature, but they may also possess other functions. In this mutational analysis we show that cspB and cspC, but not cspA, are important for NaCl, pH and ethanol stress responses and for motility of C. botulinum ATCC 3502. In all NaCl concentrations tested, the cspB mutant had lower maximum growth rate and, together with the cspC mutant, a longer lag phase compared to the wild-type strain. At low pH, the cspB and cspC mutants showed either lower maximum growth rates or longer lag phases compared to the wild type. In all ethanol concentrations tested, the cspB mutant had lower maximum growth rates and the cspC mutant had a longer lag phase than the wild-type strain. Motility was reduced in cspA and cspC mutants, and flagella formation was affected. The results suggest that cspB plays a universal role in stress response and cspC aids C. botulinum in NaCl, pH and ethanol stress in C. botulinum ATCC 3502.

  16. CSP--a model for in vivo presentation of Plasmodium berghei sporozoite antigens by hepatocytes.

    Directory of Open Access Journals (Sweden)

    Saidou Balam

    Full Text Available One target of protective immunity against the Plasmodium liver stage in BALB/c mice is represented by the circumsporozoite protein (CSP, and mainly involves its recognition by IFN-γ producing specific CD8+T-cells. In a previous in vitro study we showed that primary hepatocytes from BALB/c mice process Plasmodium berghei (Pb CSP (PbCSP and present CSP-derived peptides to specific H-2k(d restricted CD8+T-cells with subsequent killing of the presenting cells. We now extend these observations to an in vivo infection model in which infected hepatocytes and antigen specific T-cell clones are transferred into recipient mice inducing protection from sporozoite (SPZ challenge. In addition, using a similar protocol, we suggest the capacity of hepatocytes in priming of naïve T-cells to provide protection, as further confirmed by induction of protection after depletion of cross-presenting dendritic cells (DCs by cytochrome c (cyt c treatment or using traversal deficient parasites. Our results clearly show that hepatocytes present Plasmodium CSP to specific-primed CD8+T-cells, and could also prime naïve T-cells, leading to protection from infection. These results could contribute to a better understanding of liver stage immune response and design of malaria vaccines.

  17. Palladium-Catalyzed Alkylation with Alkyl Halides by C(sp(3) )-H Activation.

    Science.gov (United States)

    Wu, Zhuo; Ma, Ding; Zhou, Bo; Ji, Xiaoming; Ma, Xiaotian; Wang, Xiaoling; Zhang, Yanghui

    2017-09-25

    Utilizing halogens as traceless directing goups represents an attractive strategy for C-H functionalization. A two C-H alkylation system, initiated by the oxidative addition of organohalides to Pd(0) , has been developed. The first reaction involves an intermolecular alkylation of palladacycles to form C(sp(3) )-C(sp(2) ) bonds followed by C(sp(2) )-H activation/cyclization to deliver alkylated benzocyclobutenes as the final products. In the second reaction, two C-C bonds are formed by the reaction of palladacycles with CH2 Br2 , and provides a facile and efficient method for the synthesis of indanes. The alkylated benzocyclobutene products can be transformed into tricyclic hyrocarbons, and the indane derivatives are essential structural motifs in bioactive and odorant molecules. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  18. Expeditious diastereoselective synthesis of elaborated ketones via remote Csp3-H functionalization

    Science.gov (United States)

    Shu, Wei; Lorente, Adriana; Gómez-Bengoa, Enrique; Nevado, Cristina

    2017-01-01

    The quest for selective C-H functionalization reactions, able to provide new strategic opportunities for the rapid assembly of molecular complexity, represents a major focus of the chemical community. Examples of non-directed, remote Csp3-H activation to forge complex carbon frameworks remain scarce due to the kinetic stability and thus intrinsic challenge associated to the chemo-, regio- and stereoselective functionalization of aliphatic C-H bonds. Here we describe a radical-mediated, directing-group-free regioselective 1,5-hydrogen transfer of unactivated Csp3-H bonds followed by a second Csp2-H functionalization to produce, with exquisite stereoselectivity, a variety of elaborated fused ketones. This study demonstrates that aliphatic acids can be strategically harnessed as 1,2-diradical synthons and that secondary aliphatic C-H bonds can be engaged in stereoselective C-C bond-forming reactions, highlighting the potential of this protocol for target-oriented natural product and pharmaceutical synthesis.

  19. A Comparison of Supercritical Carbon Dioxide Power Cycle Configurations with an Emphasis on CSP Applications (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Neises, T.; Turchi, C.

    2013-09-01

    Recent research suggests that an emerging power cycle technology using supercritical carbon dioxide (s-CO2) operated in a closed-loop Brayton cycle offers the potential of equivalent or higher cycle efficiency versus supercritical or superheated steam cycles at temperatures relevant for CSP applications. Preliminary design-point modeling suggests that s-CO2 cycle configurations can be devised that have similar overall efficiency but different temperature and/or pressure characteristics. This paper employs a more detailed heat exchanger model than previous work to compare the recompression and partial cooling cycles, two cycles with high design-point efficiencies, and illustrates the potential advantages of the latter. Integration of the cycles into CSP systems is studied, with a focus on sensible heat thermal storage and direct s-CO2 receivers. Results show the partial cooling cycle may offer a larger temperature difference across the primary heat exchanger, thereby potentially reducing heat exchanger cost and improving CSP receiver efficiency.

  20. Estudo da regulação do gene cspD de Caulobacter crescentus.

    OpenAIRE

    Carolina Antunes do Prado Tavares Silva

    2011-01-01

    CspD é uma das quatro proteínas de choque frio de Caulobacter crescentus, sendo maior que as outras CSPs por possuir dois domínios de choque frio, e tem seu papel na célula ainda desconhecido. O objetivo deste trabalho foi identificar e caracterizar os fatores in cis e in trans envolvidos na regulação da expressão do gene cspD em C. crescentus. Neste trabalho foi visto que a expressão de cspD é induzida pela carência de glicose no meio, mas não pela carência de nitrogênio. Esta indução é depe...

  1. Numerical Simulation of Austenite Recrystallization in CSP Hot Rolled C-Mn Steel Strip

    Institute of Scientific and Technical Information of China (English)

    TANG Guang-bo; LIU Zheng-dong; DONG Han; GAN Yong; KANG Yong-lin; LI Lie-jun; MAO Xin-ping

    2007-01-01

    An integrated mathematical model is developed to predict the microstructure evolution of C-Mn steel during multipass hot rolling on the CSP production line, and the thermal evolution, the temperature distribution, the deformation, and the austenite recrystallization are simulated. The characteristics of austenite recrystallization of hot rolled C-Mn steel in the CSP process are also discussed. The simulation of the microstructure evolution of C-Mn steel ZJ510L during CSP multipass hot rolling indicates that dynamic recrystallization and metadynamic recrystallization may easily occur in the first few passes, where nonuniform recrystallization and inhomogeneous grain size microstructure may readily occur; during the last few passes, static recrystallization may occur dominantly, and the microstructure will become more homogeneous and partial recrystallization may occur at relatively low temperature.

  2. CSP cogeneration of electricity and desalinated water at the Pentakomo field facility

    Science.gov (United States)

    Papanicolas, C. N.; Bonanos, A. M.; Georgiou, M. C.; Guillen, E.; Jarraud, N.; Marakkos, C.; Montenon, A.; Stiliaris, E.; Tsioli, E.; Tzamtzis, G.; Votyakov, E. V.

    2016-05-01

    The Cyprus Institute's Pentakomo Field Facility (PFF) is a major infrastructure for research, development and testing of technologies relating to concentrated solar power (CSP) and solar seawater desalination. It is located at the south coast of Cyprus near the sea and its environmental conditions are fully monitored. It provides a test facility specializing in the development of CSP systems suitable for island and coastal environments with particular emphasis on small units (electricity and desalinated seawater from CSP. Specifically, the experimental plant consists of a heliostat-central receiver system for solar harvesting, thermal energy storage in molten salts followed by a Rankine cycle for electricity production and a multiple-effect distillation (MED) unit for desalination.

  3. Customer satisfaction

    DEFF Research Database (Denmark)

    Eskildsen, Jacob Kjær; Kristensen, Kai

    2007-01-01

    & Westlund, 2003) as well as the structure of the framework (Eskildsen et al., 2004). We know however very little about how the structure of the individual markets with respect to, for instance, how the transparency of products and services affects customer satisfaction. The aim of this article is to analyze...... the effect of the transparency of products and services on customer satisfaction with respect to Danish mobile phone companies, banks and supermarkets from 2004 based on the authors' experiences from the various analyses conducted within the EPSI rating initiative....

  4. Optical and thermal properties of selective absorber coatings under CSP conditions

    Science.gov (United States)

    Macias, Juan Daniel; Herrera-Zamora, Dallely Melissa; Lizama-Tzec, Francisco Ivan; Bante-Guerra, Jose; Arés-Muzio, Oscar Eduardo; Oskam, Gerko; Rubio, Hernando Romero-Paredes; Alvarado-Gil, Juan Jose; Arancibia-Bulnes, Camilo; Ramos-Sánchez, Victor; Villafán-Vidales, Heidi Isabel

    2017-06-01

    Concentrating solar power (CSP) systems use solar absorbers to convert sunlight into thermal electric power. In CSP systems, a high reflective surface focuses sunlight onto a receiver that captures the solar energy and converts it into heat. The operation of high efficiency CSP systems involves improvements in the performance of the coatings of the solar absorption materials. To accomplish this, novel, more efficient selective coatings are being developed with high solar absorptance and low thermal losses at their operation temperature. Heat losses in a CSP system occur by three mechanisms: conduction, convection and radiation. It has been widely documented that energy losses increase with increasing operating temperature of CSP systems, and the precise knowledge of the thermophysical properties of the materials involved in CSP systems may allow us to increase the efficiency of systems. In this work, we applied the pulsed photoradiometry technique (PPTR) to evaluate the changes in the thermophysical properties of selective coatings on a variety of substrates as a function of temperature. Three types of coatings deposited with two different techniques on three types of substrate were examined: commercial coatings based on titanium oxynitride deposited by sputtering on substrates of copper and aluminum, coatings based on black nickel deposited by electrochemical methods on substrates of steel, and coatings based on black cobalt deposited by electrochemical methods on substrates of steel and copper. Values of the thermal diffusivity and thermal conductivity were obtained in the temperature range of 25 to 550 °C. Optical reflectance measurements have been performed in order to provide an estimate of the dependence of the thermal emittance on temperature using the black body radiation theory.

  5. Research on Problems in Establishing Chinese Customer Satisfaction Index%建立中国顾客满意指数若干问题的研究

    Institute of Scientific and Technical Information of China (English)

    张新安; 田澎; 张列平

    2002-01-01

    介绍了顾客满意指数(Customer Satisfaction Index, CSI)测评的发展历程,并研究了具有代表性的美国顾客满意指数(American Customer Satisfaction Index, ACSI);然后,对建立中国顾客满意指数(Chinese Customer Satisfaction Index, CCSI)中的若干问题进行了研究;研究指出,CCSI在建立过程中,应该遵循以下4个原则:(1)测评对象具有统一性;(2)测评结果具有可比性;(3)测评结果具有有用性;(4)考虑中国市场中的实际情况.

  6. Study on temper-rapid cooling process of low carbon steel produced by CSP

    Institute of Scientific and Technical Information of China (English)

    Huajie Wu; Yangchun Liu; Jie Fu

    2007-01-01

    On the basis of the effect of carbon precipitation on the microstructure and properties of steel products below A1 temperature,a new thermal treatment method (temper-rapid cooling process) was studied. By the temper-rapid cooling process, the yield strengths of the high strength low carbon (HSLC) steel ZJ330 and SPA-H produced using the compact strip production (CSP) process increased from 340 to about 410 MPa and from 410 to about 450 MPa, respectively. The results indirectly indicated that there existed nanoscaled iron-carbon precipitates that have obvious precipitation effect on low carbon steel produced by CSP. The prospect of application is discussed.

  7. Design and Evaluation of the User-Adapted Program Scheduling system based on Bayesian Network and Constraint Satisfaction

    Science.gov (United States)

    Iwasaki, Hirotoshi; Sega, Shinichiro; Hiraishi, Hironori; Mizoguchi, Fumio

    In recent years, lots of music content can be stored in mobile computing devices, such as a portable digital music player and a car navigation system. Moreover, various information content like news or traffic information can be acquired always anywhere by a cellular communication and a wireless LAN. However, usability issues arise from the simple interfaces of mobile computing devices. Moreover, retrieving and selecting such content poses safety issues, especially while driving. Thus, it is important for the mobile system to recommend content automatically adapted to user's preference and situation. In this paper, we present the user-adapted program scheduling that generates sequences of content (Program) suiting user's preference and situation based on the Bayesian network and the Constraint Satisfaction Problem (CSP) technique. We also describe the design and evaluation of its realization system, the Personal Program Producer (P3). First, preference such as a genre ratio of content in a program is learned as a Bayesian network model using simple operations such as a skip behavior. A model including each content tends to become large-scale. In order to make it small, we present the model separation method that carries out losslessly compression of the model. Using the model, probabilistic distributions of preference to generate constraints are inferred. Finally satisfying the constraints, a program is produced. This kind of CSP has an issue of which the number of variables is not fixedness. In order to make it variable, we propose a method using metavariables. To evaluate the above methods, we applied them to P3 on a car navigation system. User evaluations helped us clarify that the P3 can produce the program that a user prefers and adapt it to the user.

  8. Versatile roles of CspA orthologs in complement inactivation of serum-resistant Lyme disease spirochetes.

    Science.gov (United States)

    Hammerschmidt, Claudia; Koenigs, Arno; Siegel, Corinna; Hallström, Teresia; Skerka, Christine; Wallich, Reinhard; Zipfel, Peter F; Kraiczy, Peter

    2014-01-01

    CspA of the Lyme disease spirochete Borrelia burgdorferi represents a key molecule in immune evasion, protecting borrelial cells from complement-mediated killing. As previous studies focused almost exclusively on CspA of B. burgdorferi, here we investigate the different binding capacities of CspA orthologs of Borrelia burgdorferi, B. afzelii, and B. spielmanii for complement regulator factor H and plasminogen and their ability to inhibit complement activation by either binding these host-derived plasma proteins or independently by direct interaction with components involved in formation of the lethal, pore-like terminal complement complex. To further examine their function in serum resistance in vivo, a serum-sensitive B. garinii strain was used to generate spirochetes, ectopically producing functional CspA orthologs. Irrespective of their species origin, all three CspA orthologs impart resistance to complement-mediated killing when produced in a serum-sensitive B. garinii surrogate strain. To analyze the inhibitory effect on complement activation and to assess the potential to inactivate C3b by binding of factor H and plasminogen, recombinant CspA orthologs were also investigated. All three CspA orthologs simultaneously bound factor H and plasminogen but differed in regard to their capacity to inactivate C3b via bound plasmin(ogen) and inhibit formation of the terminal complement complex. CspA of B. afzelii binds plasmin(ogen) and inhibits the terminal complement complex more efficiently than CspA of B. burgdorferi and B. spielmanii. Taken together, CspA orthologs of serum-resistant Lyme disease spirochetes act as multifunctional evasion molecules that inhibit complement on two central activation levels, C3b generation and assembly of the terminal complement complex.

  9. Enabling Greater Penetration of Solar Power via the Use of CSP with Thermal Energy Storage

    Energy Technology Data Exchange (ETDEWEB)

    Denholm, P.; Mehos, M.

    2011-11-01

    At high penetration of solar generation there are a number of challenges to economically integrating this variable and uncertain resource. These include the limited coincidence between the solar resource and normal demand patterns and limited flexibility of conventional generators to accommodate variable generation resources. Of the large number of technologies that can be used to enable greater penetration of variable generators, concentrating solar power (CSP) with thermal energy storage (TES) presents a number of advantages. The use of storage enables this technology to shift energy production to periods of high demand or reduced solar output. In addition, CSP can provide substantial grid flexibility by rapidly changing output in response to the highly variable net load created by high penetration of solar (and wind) generation. In this work we examine the degree to which CSP may be complementary to PV by performing a set of simulations in the U.S. Southwest to demonstrate the general potential of CSP with TES to enable greater use of solar generation, including additional PV.

  10. Enantioselective carbenoid insertion into C(sp3)–H bonds

    Science.gov (United States)

    Santiago, J V

    2016-01-01

    Summary The enantioselective carbenoid insertion into C(sp3)–H bonds is an important tool for the synthesis of complex molecules due to the high control of enantioselectivity in the formation of stereogenic centers. This paper presents a brief review of the early issues, related mechanistic studies and recent applications on this chemistry area. PMID:27340479

  11. Analysis of regulation and economic incentives of the hybrid CSP HYSOL

    DEFF Research Database (Denmark)

    Baldini, Mattia; Pérez, Cristian Hernán Cabrera

    2016-01-01

    The European HYSOL project, developed over the last three years in the solar thermal plant Manchasol (Ciudad Real, Spain), has been successfully completed, demonstrating that hybridisation of CSP with other energy sources (renewable and fossil) ensures power supply to the power grid in a stable...

  12. Concentrating Solar Power: Best Practices Handbook for the Collection and Use of Solar Resource Data (CSP)

    Energy Technology Data Exchange (ETDEWEB)

    Stoffel, T.; Renne, D.; Myers, D.; Wilcox, S.; Sengupta, M.; George, R.; Turchi, C.

    2010-09-01

    As the world looks for low-carbon sources of energy, solar power stands out as the most abundant energy resource. Harnessing this energy is the challenge for this century. Photovoltaics and concentrating solar power (CSP) are two primary forms of electricity generation using sunlight. These use different technologies, collect different fractions of the solar resource, and have different siting and production capabilities. Although PV systems are most often deployed as distributed generation sources, CSP systems favor large, centrally located systems. Accordingly, large CSP systems require a substantial investment, sometimes exceeding $1 billion in construction costs. Before such a project is undertaken, the best possible information about the quality and reliability of the fuel source must be made available. That is, project developers need to have reliable data about the solar resource available at specific locations to predict the daily and annual performance of a proposed CSP plant. Without these data, no financial analysis is possible. This handbook presents detailed information about solar resource data and the resulting data products needed for each stage of the project.

  13. Design and Use of CSP Meta-Model for Embedded Control Software Development

    NARCIS (Netherlands)

    Bezemer, Maarten M.; Wilterdink, Robert J.W.; Broenink, Jan F.; Welch, Peter H.; Barnes, Frederick R.M.; Chalmers, Kevin; Baekgaard Pedersen, Jan; Sampson, Adam T.

    2012-01-01

    Software that is used to control machines and robots must be predictable and reliable. Model-Driven Design (MDD) techniques are used to comply with both the technical and business needs. This paper introduces a CSP meta-model that is suitable for these MDD techniques. The meta-model describes the st

  14. Control oriented concentrating solar power (CSP) plant model and its applications

    Science.gov (United States)

    Luo, Qi

    Solar receivers in concentrating solar thermal power plants (CSP) undergo over 10,000 start-ups and shutdowns, and over 25,000 rapid rate of change in temperature on receivers due to cloud transients resulting in performance degradation and material fatigue in their expected lifetime of over 30 years. The research proposes to develop a three-level controller that uses multi-input-multi-output (MIMO) control technology to minimize the effect of these disturbances, improve plant performance, and extend plant life. The controller can be readily installed on any vendor supplied state-of-the-art control hardware. We propose a three-level controller architecture using multi-input-multi-output (MIMO) control for CSP plants that can be implemented on existing plants to improve performance, reliability, and extend the life of the plant. This architecture optimizes the performance on multiple time scalesreactive level (regulation to temperature set points), tactical level (adaptation of temperature set points), and strategic level (trading off fatigue life due to thermal cycling and current production). This controller unique to CSP plants operating at temperatures greater than 550 °C, will make CSPs competitive with conventional power plants and contribute significantly towards the Sunshot goal of 0.06/kWh(e), while responding with agility to both market dynamics and changes in solar irradiance such as due to passing clouds. Moreover, our development of control software with performance guarantees will avoid early stage failures and permit smooth grid integration of the CSP power plants. The proposed controller can be implemented with existing control hardware infrastructure with little or no additional equipment. In the thesis, we demonstrate a dynamics model of CSP, of which different components are modelled with different time scales. We also show a real time control strategy of CSP control oriented model in steady state. Furthermore, we shown different controllers

  15. Genetic Transformation of CspB in Maize Inbred Lines%CspB基因植物表达载体的构建及转化玉米自交系的研究

    Institute of Scientific and Technical Information of China (English)

    陈丽娟; 黄从林; 张秀海; 吴忠义; 杨德光

    2011-01-01

    A plant expression vector PBPC-CspB-bar harboring CspB gene driven by corn ubiquitin promoter from the Bacillus subtilis bacteria (Gene ID :936224) was constructed. The bar gene as resistance selection marker, the recombinant plasmid was introduced into maize inbred lines Jing501, Jing517, and Ji444, using pollen-tube-pathway method, and 60 glufosinate-tolerant plants were obtained through herbicide screening. Then 48 transgenic plants were proved by PCR assays for bar gene. To further identify the transgenic plants, PCR analysis for CspB was conducted in the 48 bar gene positive plants. It was showed that both CspB and bar had been integrated into the maize genome in 13 transgenic lines.%利用来自Bacillus subtilis细菌的CspB基因(Gene ID:936224)构建了Ubiquitin启动子驱动的CspB基因植物表达载体PBPC-CspB-bar,以bar基因为抗性筛选标记,通过花粉管通道法将构建的表达载体转化到玉米自交系京501、京517和吉444,通过喷洒除草剂筛选得到60株草丁膦抗性植株,用PCR检测得到48株bar基因阳性植株,将获得的转基因植株进行CspB基因PCR鉴定,获得13株同时整合CspB和bar的转基因株系.

  16. Neuroprotective and Anti-Apoptotic Effects of CSP-1103 in Primary Cortical Neurons Exposed to Oxygen and Glucose Deprivation

    Science.gov (United States)

    Porrini, Vanessa; Sarnico, Ilenia; Benarese, Marina; Branca, Caterina; Mota, Mariana; Lanzillotta, Annamaria; Bellucci, Arianna; Parrella, Edoardo; Faggi, Lara; Spano, Pierfranco; Imbimbo, Bruno Pietro; Pizzi, Marina

    2017-01-01

    CSP-1103 (formerly CHF5074) has been shown to reverse memory impairment and reduce amyloid plaque as well as inflammatory microglia activation in preclinical models of Alzheimer’s disease. Moreover, it was found to improve cognition and reduce brain inflammation in patients with mild cognitive impairment. Recent evidence suggests that CSP-1103 acts through a single molecular target, the amyloid precursor protein intracellular domain (AICD), a transcriptional regulator implicated in inflammation and apoptosis. We here tested the possible anti-apoptotic and neuroprotective activity of CSP-1103 in a cell-based model of post-ischemic injury, wherein the primary mouse cortical neurons were exposed to oxygen-glucose deprivation (OGD). When added after OGD, CSP-1103 prevented the apoptosis cascade by reducing cytochrome c release and caspase-3 activation and the secondary necrosis. Additionally, CSP-1103 limited earlier activation of p38 and nuclear factor κB (NF-κB) pathways. These results demonstrate that CSP-1103 is neuroprotective in a model of post-ischemic brain injury and provide further mechanistic insights as regards its ability to reduce apoptosis and potential production of pro-inflammatory cytokines. In conclusion, these findings suggest a potential use of CSP-1103 for the treatment of brain ischemia. PMID:28106772

  17. Problems

    Directory of Open Access Journals (Sweden)

    Yekini Shehu

    2010-01-01

    real Banach space which is also uniformly smooth using the properties of generalized f-projection operator. Using this result, we discuss strong convergence theorem concerning general H-monotone mappings and system of generalized mixed equilibrium problems in Banach spaces. Our results extend many known recent results in the literature.

  18. Middle East and North Africa Region Assessment of the Local Manufacturing Potential for Concentrated Solar Power (CSP) Projects

    Energy Technology Data Exchange (ETDEWEB)

    Gazzo, A.; Gousseland, P.; Verdier, J. [Ernst and Young et Associes, Neuilly-Sur-Seine (France); Kost, C.; Morin, G.; Engelken, M.; Schrof, J.; Nitz, P.; Selt, J.; Platzer, W. [Fraunhofer Institute for Solar Energy Systems ISE, Freiburg (Germany); Ragwitz, M.; Boie, I.; Hauptstock, D.; Eichhammer, W. [Fraunhofer Institute for Systems and Innovation Research ISI, Karlsruhe (Germany)

    2011-01-15

    The MENA CSP (Middle East and North Africa - Concentrated Solar Power) plan is an ambitious scheme with an appeal to anyone concerned about climate change and convinced by the need for clean, renewable power. But what does it really mean for the average citizen of say Morocco or Tunisia? The World Bank sees potential for significant job and wealth creation in solar energy producing countries. If the CSP market grows rapidly over the next few years, equipment manufacturing will be essential to supply this new sector. This study proposes roadmaps and an action plan to help develop the potential of locally manufactured CSP components in the existing industry and for new market entrants.

  19. Tårs 10000 m2 CSP + Flat Plate Solar Collector Plant - Cost-Performance Optimization of the Design

    DEFF Research Database (Denmark)

    Perers, Bengt; Furbo, Simon; Tian, Zhiyong

    2016-01-01

    , was established. The optimization showed that there was a synergy in combining CSP and FP collectors. Even though the present cost per m² of the CSP collectors is high, the total energy cost is minimized by installing a combination of collectors in such solar heating plant. It was also found that the CSP...... collectors could raise flexibility in the control strategy of the plant. The TRNSYS-Genopt model is based on individually validated component models and collector parameters from experiments. Optimization of the cost performance of the plant has been conducted in this paper. The simulation model remains...... to be validated with annual measured data from the plant....

  20. The Moroccan solar plan. A comparative analysis of CSP and PV utilization until 2020

    Energy Technology Data Exchange (ETDEWEB)

    Richts, Christoph

    2012-02-15

    The present master thesis conducts technical and economic simulations of large-scale Photovoltaic (PV) and Concentrated Solar Power (CSP) plants for the Moroccan Solar Plan. It provides a database of performance indicators such as energy yields, capacity factors, typical efficiencies and losses of technical components, LCOE, and difference costs (DC: LCOE minus avoided costs of the conventional power system) for fixed tilted, 1-axis horizontal, 1-axis vertical and 2-axis tracking PV and CSP with no, 6, 12 and 18 full load hours of thermal storage. HelioClim irradiation data of 2005 for the sites in Ouarzazate, Ain Ben Mathar, Boujdour, Laayoune and Tarfaya is used ranging between 1,927 - 2,428 kWh/m{sup 2}/y (DNI) and 1,968 - 2,154 kWh/m{sup 2}/y (GHI). In the base scenario minimum LCOE are 9.6 - 5.4 EURct/kWh for PV (2012 - 2020) varying between 0.90 - 1.55 EURct/kWh among sites and technologies. CSP reaches 12.8 - 9.2 EURct/kWh and a bandwidth of 2.3 - 1.6 EURct/kWh. Average DC are lowest for horizontal 1-axis tracking (0.4 and -7.7 EURct/kWh for plants built in 2012 and 2020 respectively) and CSP with 6 hours of storage (1.3 and -3.5 EURct/kWh). PV is cheaper for all sites and technologies due to higher learning curves and less initial investment, but cannot contribute to coverage of the daily evening peak in Morocco. Four different MSP-scenarios with 2000 MW of solar energy require total investments of 3.7 - 7.5 billion EUR and yield 7.9% - 12.8% of the electricity demand in 2020 (given a growth 7%/y) depending on the ratio of PV and CSP utilization. The average LCOE are 8.3 - 11.7 EURct/kWh and the total discounted DC (10%/y) are -254 - 391 million EUR. Thus, solar energy is partly less expensive than a business-as-usual scenario. An extensive sensitivity analysis for WACC and price escalation of conventional energy shows that for only PV and only CSP scenarios in 55 and 22 out of 72 cases the DC are negative - although no environmental costs for conventional

  1. Analysis of employee satisfaction

    OpenAIRE

    Cikrytová, Kateřina

    2009-01-01

    The thesis contains analysis of job satisfaction employees of call center. In the theoretical part is defined conception of job satisfaction, are described deteminants of job satisfaction and relationship between job satisfaction and work motivation. In the practical part are analysed results of questionnaire survey and there are presented suggestions measures to increas job satisfaction. The respondents were asked about satisfaction with the content of work, remuneration, work organization, ...

  2. Infertility and Life Satisfaction among Women

    Science.gov (United States)

    McQuillan, Julia; Stone, Rosalie A. Torres; Greil, Arthur L.

    2007-01-01

    Using data from a random sample of 580 midwestern women, the authors explore the association between lifetime infertility and life satisfaction. Past research shows lower life satisfaction among those seeking help for infertility. The authors find no direct effects of lifetime infertility, regardless of perception of a problem, on life…

  3. A Method to Assess Flux Hazards at CSP Plants to Reduce Avian Mortality

    Energy Technology Data Exchange (ETDEWEB)

    Ho, Clifford K.; Wendelin, Timothy; Horstman, Luke; Yellowhair, Julius

    2017-06-27

    A method to evaluate avian flux hazards at concentrating solar power plants (CSP) has been developed. A heat-transfer model has been coupled to simulations of the irradiance in the airspace above a CSP plant to determine the feather temperature along prescribed bird flight paths. Probabilistic modeling results show that the irradiance and assumed feather properties (thickness, absorptance, heat capacity) have the most significant impact on the simulated feather temperature, which can increase rapidly (hundreds of degrees Celsius in seconds) depending on the parameter values. The avian flux hazard model is being combined with a plant performance model to identify alternative heliostat standby aiming strategies that minimize both avian flux hazards and negative impacts on plant performance.

  4. GIS-based assessment of combined CSP electric power and seawater desalination plant for Duqum - Oman

    Energy Technology Data Exchange (ETDEWEB)

    Gastli, Adel [Department of Electrical and Computer Engineering, College of Engineering, Sultan Qaboos University, P.O. 33, Al-Khodh, Muscat-123 (Oman); Charabi, Yassine [Department of Geography, College of Arts, Sultan Qaboos University, P.O. 42, Al-Khodh, Muscat-123 (Oman); Zekri, Slim [Department of Natural Resource Economics, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. 34, Al-Khodh, Muscat-123 (Oman)

    2010-02-15

    This paper investigates the potential of implementing combined electric power and seawater desalination plant using concentrated solar power technologies for Wilayat Duqum in Oman. Duqum is going through a considerable urban, touristic and industrial expansion and development. GIS solar radiation tools are used to select the most appropriate site for the plant location. There are basically two different options to combine concentrated solar electric power with seawater desalination. The first option is to combine a CSP plant with a thermal desalination unit, exploiting the exhaust heat of the steam cycle to drive a thermal desalination unit. The second option is to exploit only the electricity output of the CSP plant with a reverse osmosis desalination unit. The paper deals with both options and shows where each of the concepts has advantages considering local conditions: the quality of the input water, the demand of freshwater and/or potable water, social and economic aspects, the environment and others. (author)

  5. Evaluation and Comparision of Common Spatial Patterns (CSP and Intelligent Segmentation in P300 Detection

    Directory of Open Access Journals (Sweden)

    Zahra Amini1

    2011-05-01

    Full Text Available In This Paper, two different feature extraction methods were studied and their performances in pattern recognition based- P300 detection were compared. These two methods were Common Spatial Pattern (CSP and intelligent segmentation. Data set II (P300 speller from the BCI competition 2005 was used. After pre-processing and feature extraction, these features were compared. For this purpose, first, a statistical analysis had been applied for evaluating the fitness of each feature in discriminating between target and non target signals. Then, each of these two groups of features was evaluated by a Linear Discriminant Analysis (LDA classifier. Furthermore by using Stepwise Linear Discriminant Analysis (SWLDA, the best set of features was selected. Finally in this research, the best result for P300 detection was 95.25% for intelligent segmentation as a feature extraction method. This result shows that intelligent segmentation is better than CSP method for P300 detection.

  6. Solar PV-CSP Hybridisation for Baseload Generation : A Techno-economic Analysis for the Chilean Market

    OpenAIRE

    Larchet, Kevin

    2015-01-01

    The development of high capacity factor solar power plants is an interesting topic, especially when considering the climate and economic conditions of a location such as the Chilean Atacama Desert. The hybridisation of solar photovoltaic (PV) and concentrating solar power (CSP) technologies for such an application is a promising collaboration. The low cost of PV and dispatchability of CSP, integrated with thermal energy storage (TES), has the promise of delivering baseload electricity at a lo...

  7. Assessing the performance of hybrid CSP+PV plants in northern Chile

    Science.gov (United States)

    Starke, Allan; Cardemil, José M.; Escobar, Rodrigo; Colle, Sergio

    2016-05-01

    The electricity systems in Chile are characterized by a variable hourly demand in the central grid and an almost constant demand in the northern grid, which require different operation strategies for solar power plants depending on their location. Hybridizing a CSP plant with a PV plant can increase the whole plant capacity factor by allowing thermal energy to be stored while the PV plant is in production and thus help to achieve a fully dispatchable solar electricity production system. A thermal and economic analysis of hybrid CSP+PV plants is conducted considering a range of plant capacities based on a parabolic trough plant with the addition of a PV plant for the environmental conditions of Crucero in Northern Chile, which is a hotspot for solar energy development in the country. The study considers a parametric analysis and optimization of the storage and power block sizes for the CSP plant in terms of the levelized cost of energy (LCOE) for varying PV plant nominal capacity. The annual production of the plants are calculated by using the Transient System Simulation program (TRNSYS), which uses a new component library developed for that purpose. The results show good agreement with other software packages as well as with actual data from currently operating CSP plants. The adopted approach helps the proper assessment of the integration of different technologies, since it uses the well-kwon modular structure of the TRNSYS. Regarding the potential for the hybrid solar-solar plants in the Atacama Desert, the high level of irradiation available in Chile can provide a competitive electricity cost, allowing to investors the access to PPA contracts with mining companies in northern Chile. Additionally, the optimization analysis shows that the northern regions of Chile present an outstanding potential for the deployment of such projects.

  8. Microstructures and Properties of X60 Grade Pipeline Strip Steel in CSP Plant

    Institute of Scientific and Technical Information of China (English)

    DONG Rui-feng; SUN Li-gang; LIU Zhe; WANG Xue-lian; LIU Qing-you

    2008-01-01

    The microstruetures and properties of X60 grade pipeline strip steel were researched. With Nb microallo ying and TMCP, the X60 grade pipeline strip steel was developed in the Baotou CSP Plant. The mechanical proper ties meet the demands on machining and using of pipeline manufacture. The X60 strip steels had been used extensively, which had fine and uniform structures, good performance and excellent toughness.

  9. Techno-economic analysis of key renewable energy technologies (PV, CSP and wind)

    OpenAIRE

    TUEBKE Alexander; HERNANDEZ GUEVARA Hector

    2011-01-01

    This report shows the results of a techno-economic analysis of key renewable energy technologies: Solar Photovoltaics (PV), Concentrating Solar Power (CSP), and Wind Energy Technologies (wind). For this purpose, bottom-up company-data were collected, market supply and demand factors addressed, the regulatory framework examined, and EU industry compared against its main competitors. Personal interviews with 10 key industrialists from these sectors were undertaken to generate first-hand feedbac...

  10. Veterinarian satisfaction with companion animal visits.

    Science.gov (United States)

    Shaw, Jane R; Adams, Cindy L; Bonnett, Brenda N; Larson, Susan; Roter, Debra L

    2012-04-01

    To measure veterinarian satisfaction with companion animal visits through an adaptation of a previously validated physician visit satisfaction scale and to identify demographic, personality, appointment, and communication factors that contribute to veterinarian visit satisfaction. Cross-sectional descriptive study. Random sample of 50 companion animal practitioners in southern Ontario, Canada, and convenience sample of 300 clients and their pets. For each practitioner, 6 clinical appointments were videotaped, and the resulting 300 videotapes were analyzed by use of the Roter interaction analysis system. The physician satisfaction scale, Rosenberg self-esteem scale, and interpersonal reactivity index were used to measure veterinarian visit satisfaction, self-esteem, and empathy, respectively. Linear regression analysis was conducted to study the relationship between factors and veterinarian visit satisfaction. Veterinarian visit satisfaction ranged from 1 to 5 (mean ± SD, 3.97 ± 0.99) and differed significantly between wellness appointments (mean scale score, 4.13) and problem appointments (mean scale score, 3.81). Various elements of client and veterinarian communication as well as personality measures of veterinarian self-esteem and empathy were associated with veterinarian satisfaction. The specific factors differed depending on the nature of the appointment. Results suggested that veterinarian visit-specific satisfaction is enhanced through the use of communication that builds relationships with clients and is associated with degrees of veterinarian empathetic concern and veterinarian self-esteem. The implications extend to overall job satisfaction and its potential link to the health and well-being of individual veterinarians.

  11. Design, baseline characteristics, and early findings of the MPS VI (mucopolysaccharidosis VI) Clinical Surveillance Program (CSP).

    Science.gov (United States)

    Hendriksz, Christian J; Giugliani, Roberto; Harmatz, Paul; Lampe, Christina; Martins, Ana Maria; Pastores, Gregory M; Steiner, Robert D; Leão Teles, Elisa; Valayannopoulos, Vassili

    2013-03-01

    To outline the design, baseline data, and 5-year follow-up data of patients with mucopolysaccharidosis (MPS) VI enrolled in the Clinical Surveillance Program (CSP), a voluntary, multinational, observational program. The MPS VI CSP was opened in 2005 to collect, for at least 15 years, observational data from standard clinical and laboratory assessments of patients with MPS VI. Baseline and follow-up data are documented by participating physicians in electronic case report forms. Between September 2005 and March 2010 the CSP enrolled 132 patients, including 123 who received enzyme replacement therapy (ERT) with galsulfase. Median age at enrolment was 13 years (range 1-59). Mean baseline data showed impaired growth, hepatosplenomegaly, and reduced endurance and pulmonary function. The most common findings were heart valve disease (90%), reduced visual acuity (79%), impaired hearing (59%), and hepatosplenomegaly (54%). Follow-up data up to 5 years in patients with pre- and post-ERT measurements showed a decrease in urinary glycosaminoglycans and increases in height and weight in patients MPS VI to date. This first report provides information on the design and implementation of the program and population statistics for several clinical variables in patients with MPS VI. Data collected over 5 years suggest that ERT provides clinical benefit and is well-tolerated with no new safety concerns.

  12. Impact of climate change on future concentrated solar power (CSP) production

    Science.gov (United States)

    Wild, Martin; Folini, Doris; Henschel, Florian

    2017-02-01

    Traditionally, for the planning and assessment of solar power plants, the amount of solar radiation incident on the Earth's surface is assumed to be invariable over the years. However, with changing climate and air pollution levels, solar resources may no longer be stable over time and undergo substantial decadal changes. Observational records covering several decades indeed confirm long-term changes in this quantity. In a previous study (Wild et al. 2015, Solar Energy)1 we examined how the latest generation of climate models (CMIP5) projects potential changes in surface solar radiation over the coming decades, and how this may affect, in combination with the expected greenhouse warming, future power output from photovoltaic (PV) systems. In the present complementary study, we use the CMIP5 model projections to estimate possible future changes in power output from Concentrated Solar Power (CSP) systems due to changing climate and air pollution levels up to the mid-21th century. The results indicate a potential for future increases in CSP production in many parts of the globe, with few exceptions such as the North of India and the irrelevant polar areas. Compared to the changes in PV production, the estimated future production changes by CSP are larger by a factor of 4.

  13. Expeditious diastereoselective synthesis of elaborated ketones via remote Csp3–H functionalization

    Science.gov (United States)

    Shu, Wei; Lorente, Adriana; Gómez-Bengoa, Enrique; Nevado, Cristina

    2017-01-01

    The quest for selective C–H functionalization reactions, able to provide new strategic opportunities for the rapid assembly of molecular complexity, represents a major focus of the chemical community. Examples of non-directed, remote Csp3–H activation to forge complex carbon frameworks remain scarce due to the kinetic stability and thus intrinsic challenge associated to the chemo-, regio- and stereoselective functionalization of aliphatic C–H bonds. Here we describe a radical-mediated, directing-group-free regioselective 1,5-hydrogen transfer of unactivated Csp3–H bonds followed by a second Csp2–H functionalization to produce, with exquisite stereoselectivity, a variety of elaborated fused ketones. This study demonstrates that aliphatic acids can be strategically harnessed as 1,2-diradical synthons and that secondary aliphatic C–H bonds can be engaged in stereoselective C–C bond-forming reactions, highlighting the potential of this protocol for target-oriented natural product and pharmaceutical synthesis. PMID:28082736

  14. South African CSP projects under the REIPPP programme - Requirements, challenges and opportunities

    Science.gov (United States)

    Relancio, Javier; Cuellar, Alberto; Walker, Gregg; Ettmayr, Chris

    2016-05-01

    Thus far seven Concentrated Solar Power (CSP) projects have been awarded under the Renewable Energy Independent Power Producer Procurement Programme (REIPPPP), totalling 600MW: one project is in operation, four under construction and two on their way to financial close. This provides an excellent opportunity for analysis of key features of the projects that have contributed to or detracted from the programme's success. The paper draws from Mott MacDonald's involvement as Technical Advisor on the seven CSP projects that have been successful under the REIPPPP to date as well as other global CSP developments. It presents how various programme requirements have affected the implementation of projects, such as the technical requirements, time of day tariff structure, economic development requirements and the renewable energy grid code. The increasingly competitive tariffs offered have encouraged developers to investigate efficiency maximising project configurations and cost saving mechanisms, as well as featuring state of the art technology in their proposals. The paper assesses the role of the project participants (developers, lenders and government) with regards to these innovative technologies and solutions. In our paper we discuss the status of projects and the SA market, analysing the main challenges and opportunities that in turn have influenced various aspects such as technology choice, operational regimes and supply chain arrangements.

  15. [Optimization of expression conditions of an induction strategy for improving liver targeted interferon (IFN-CSP) production in E. coli].

    Science.gov (United States)

    Huang, Yanting; Lu, Xuemei; Wang, Jie; Jin, Xiaobao; Zhu, Jiayong

    2014-04-01

    Expression conditions of induction strategies for the cytoplasmic inclusion bodies (IBs) production of liver targeted interferon IFN-CSP by recombinant Escherichia coli (E. coli) BL21 (DE3) were optimized in shake-flask cultures in this study. The factors of the optimized protocol included in the present study were pH, inducer IPTG (isopropyl beta-D-thiogalactoside) concentration, culture growth temperature, incubation time and induction point. The effects of those factors were investigated by 'single variable at a time' method, aimed to analyze characterization of the recombinant strain. Orthogonal experimental design was further used to optimize the above critical factors for IFN-CSP production. According to the expression optimization result, it was confirmed that the main influence factors were cell density and induction temperature. The IFN-CSP gene expression optimized conditions were: pH value of the culture medium was 6.0, culture temperature 37 degrees C, adding IPTG to final concentration 0.4 mmol/L when the recombinant strain growth density OD600 achieved 0.8 and induction time 4 h. At this point, the IBs represented 74.3% of the total cellular protein. Compared with the non-optimized condition, IFN-CSP production obtained in optimized induction strategies were increased by approx. 1.2-fold. The optimized induction strategy yielded 688.8 mg/L of IFN-CSP, providing experimental data to study the biology activity and productive technology of IFN-CSP.

  16. Hardware support for CSP on a Java chip multiprocessor

    DEFF Research Database (Denmark)

    Gruian, Flavius; Schoeberl, Martin

    2013-01-01

    Due to memory bandwidth limitations, chip multiprocessors (CMPs) adopting the convenient shared memory model for their main memory architecture scale poorly. On-chip core-to-core communication is a solution to this problem, that can lead to further performance increase for a number of multithread......, depending on the communication and memory configuration. Application speed-up, on the other hand, is highly dependent on the type of processing, as our measurements show.......Due to memory bandwidth limitations, chip multiprocessors (CMPs) adopting the convenient shared memory model for their main memory architecture scale poorly. On-chip core-to-core communication is a solution to this problem, that can lead to further performance increase for a number of multithreaded......-chip communication channels, implemented by a ring-based network-on-chip (NoC), to reduce the memory bandwidth pressure on the shared memory.The presented solution is scalable and also specific for our limited resources and real-time predictability requirements. CMP architectures of three to eight processors were...

  17. Adenovirus-5-vectored P. falciparum vaccine expressing CSP and AMA1. Part B: safety, immunogenicity and protective efficacy of the CSP component.

    Directory of Open Access Journals (Sweden)

    Cindy Tamminga

    Full Text Available BACKGROUND: A protective malaria vaccine will likely need to elicit both cell-mediated and antibody responses. As adenovirus vaccine vectors induce both these responses in humans, a Phase 1/2a clinical trial was conducted to evaluate the efficacy of an adenovirus serotype 5-vectored malaria vaccine against sporozoite challenge. METHODOLOGY/PRINCIPAL FINDINGS: NMRC-MV-Ad-PfC is an adenovirus vector encoding the Plasmodium falciparum 3D7 circumsporozoite protein (CSP. It is one component of a two-component vaccine NMRC-M3V-Ad-PfCA consisting of one adenovector encoding CSP and one encoding apical membrane antigen-1 (AMA1 that was evaluated for safety and immunogenicity in an earlier study (see companion paper, Sedegah et al. Fourteen Ad5 seropositive or negative adults received two doses of NMRC-MV-Ad-PfC sixteen weeks apart, at 1 x 1010 particle units per dose. The vaccine was safe and well tolerated. All volunteers developed positive ELISpot responses by 28 days after the first immunization (geometric mean 272 spot forming cells/million[sfc/m] that declined during the following 16 weeks and increased after the second dose to levels that in most cases were less than the initial peak (geometric mean 119 sfc/m. CD8+ predominated over CD4+ responses, as in the first clinical trial. Antibody responses were poor and like ELISpot responses increased after the second immunization but did not exceed the initial peak. Pre-existing neutralizing antibodies (NAb to Ad5 did not affect the immunogenicity of the first dose, but the fold increase in NAb induced by the first dose was significantly associated with poorer antibody responses after the second dose, while ELISpot responses remained unaffected. When challenged by the bite of P. falciparum-infected mosquitoes, two of 11 volunteers showed a delay in the time to patency compared to infectivity controls, but no volunteers were sterilely protected. SIGNIFICANCE: The NMRC-MV-Ad-PfC vaccine expressing CSP was

  18. Initial review and analysis of the direct environmental impacts of CSP in the northern Cape, South Africa

    Science.gov (United States)

    Rudman, Justine; Gauché, Paul; Esler, Karen J.

    2016-05-01

    The Integrated Resource Plan (IRP) of 2010 and the IRP Update provide the most recent guidance to the electricity generation future of South Africa (SA) and both plans include an increased proportion of renewable energy generation capacity. Given that SA has abundant renewable energy resource potential, this inclusion is welcome. Only 600 MW of the capacity allocated to concentrating solar power (CSP) has been committed to projects in the Northern Cape and represents roughly a fifth of the capacity that has been included in the IRP. Although CSP is particularly new in the electricity generation system of the country, the abundant solar resources of the region with annual DNI values of above 2900 kWh/m2 across the arid Savannah and Nama-Karoo biomes offer a promising future for the development of CSP in South Africa. These areas have largely been left untouched by technological development activities and thus renewable energy projects present a variety of possible direct and indirect environmental, social and economic impacts. Environmental Impact Assessments do focus on local impacts, but given that ecological processes often extend to regional- and landscape scales, understanding this scaled context is important to the alignment of development- and conservation priorities. Given the capacities allocated to CSP for the future of SA's electricity generation system, impacts on land, air, water and biodiversity which are associated with CSP are expected to increase in distribution and the understanding thereof deems valuable already from this early point in CSP's future in SA. We provide a review of direct impacts of CSP on the natural environment and an overview of the anticipated specific significance thereof in the Northern Cape.

  19. 约束满足混合算法求解并行机Job-Shop调度问题%Constraint satisfaction-based hybridalgorithm for Job-Shop scheduling problem with parallel machines

    Institute of Scientific and Technical Information of China (English)

    李俊芳; 李铁克; 屈国强

    2011-01-01

    分析并行机Job-Shop调度问题的特点并建立其约束满足优化模型,结合约束满足与变邻域搜索技术设计了一个求解该问题的混合优化算法.该算法采用变量排序方法和值排序方法选择变量并赋值,利用回溯和约束传播消解资源冲突,生成初始可行调度,然后应用局部搜索技术增强收敛性,并通过结合问题特点设计的邻域结构的多样性提高求解质量.数据实验表明,提出的算法与其他两种算法相比,具有一定的可行性和有效性.%Analyzed the Job-Shop scheduling problem with parallel machines and established its constraint satisfaction optimization model. Proposed a hybrid optimization algorithm combined with constraint satisfaction and variable neighborhood search technique. In the algorithm, chosen a variable and assigned by variable ordering and value ordering method. Resolved resource conflicts using backtracking and obtained constraint propagation technology until a feasible schedule. Then the feasible schedule acted as an initial solution of the variable neighborhood search algorithm. Enhanced the convergence through local search technology and improved the quality of solution through the diversity of the designed neighborhood structures according to the characteristics of the problem. The feasibility and validity of the proposed hybrid method is demonstrated by the data experiment compared with the other two algorithms.

  20. Analyses of the use of natural gas in solar power plants (CSP) hybridization in the Sao Francisco Basin (BA); Analise do uso de gas natural na hibridizacao de plantas termosolares (CSP) na Bacia do Sao Francisco (BA)

    Energy Technology Data Exchange (ETDEWEB)

    Malagueta, Diego Cunha; Penafiel, Rafael Andres Soria; Szklo, Alexandre Salem; Dutra, Ricardo M.; Schaeffer, Roberto [Coordenacao dos Programas de Pos-Graduacao de Engenharia (COPPE/UFRJ), RJ (Brazil)

    2012-07-01

    This study assessed the feasibility of Concentrated Solar Power plants (CSP) in Northeast, Brazil. It focused on parabolic trough solar power plants, which is the most mature CSP technology; and evaluated plants rated at 100 MWe, dry cooling systems (due to the low water availability in Northeast), and with and without hybridization based on natural gas (degree of hybridization varying from 25 to 75%). Hence, the capacity factor of the simulated plants hovered between 23 and 98%, according to the degree of hybridization and the choice of the thermodynamic cycle of the natural gas fueled thermal system: Rankine or combined cycle. The CSP plants were simulated at Bom Jesus da Lapa, in the semi-arid region of Bahia. Given the prospects for natural gas resources in the Sao Francisco Basin, different scenarios for the gas prices were tested. Moreover, two scenarios were tested for the cost of the CSP plants, one based on the current financial environment and the other based on incentive policies, such as fiscal incentives and loans. Findings show that while simple plants levelized costs (LCOE) hovered around 520 R$/MWh, for hybrid plants LCOE may reach 140 to 190 R$/MWh. Therefore, this study proposed incentive policies to promote the increasing investment in hybrid CSP plants. (author)

  1. The In-Transit Vigilant Covering Tour Problem of Routing Unmanned Ground Vehicles

    Science.gov (United States)

    2012-08-01

    15 Figure 2. A classic VRP ...17 Figure 3. Solution for a VRP ........................................................................................18 Figure 4. Solution...of NP-hard problems, such as the Traveling Salesman Problem (TSP), Vehicle Routing Problem ( VRP ), and Covering Salesman Problem (CSP) etc. We will

  2. Clinicians' and patients' experiences and satisfaction with unscheduled, nighttime, Internet-based video conferencing for assessing acute medical problems in a nursing facility.

    Science.gov (United States)

    Weiner, Michael; Schadow, Gunther; Lindbergh, Donald; Warvel, Jill; Abernathy, Greg; Perkins, Susan M; Fyffe, Joanne; Dexter, Paul R; McDonald, Clement J

    2003-01-01

    Videoconferencing between patients and their physicians can increase patients' access to healthcare. Unscheduled videoconferencing can benefit patients with acute medical problems but has not been studied extensively. We conducted a clinical trial of unscheduled, nighttime videoconferencing in a nursing home, where on-call physicians usually provide care by telephone from remote locations. Although most calls for medical problems did not lead to videoconferencing, physicians and nursing-home residents were satisfied with videoconferencing when it did occur, and physicians reported that making medical decisions was easier with videoconferencing. Videoconferencing was most often conducted to assess residents with changes in mental status, abnormal laboratory values, or falls. Physicians often lacked immediate access to videoconferencing equipment when medical problems with residents occurred. This application could benefit from improved access and portability of equipment.

  3. Thermal stability of multilayered Pt-Al2O3 nanocoatings for high temperature CSP systems

    CSIR Research Space (South Africa)

    Nuru, ZY

    2015-10-01

    Full Text Available B), 115-120 Thermal stability of multilayered Pt-Al2O3 nanocoatings for high temperature CSP systems Z.Y. Nuru a, b, *, L. Kotsedi a, b, C.J. Arendse c, D. Motaung d, B. Mwakikunga d, K. Roro d, e, M. Maaza a, b a UNESCO-UNISA Africa Chair... Pretoria, South Africa e R&D Core-Energy, Council for Scientific and Industrial Research, P O Box 395, 0001 Pretoria, South Africa Abstract This contribution reports on the effect of thermal annealing on sputtered Pt–Al(sub2)O(sub3) multilayered...

  4. The "Diagnostic Guideline for Anxiety and Challenging Behaviour" for Persons with Intellectual Disabilities: Preliminary Outcomes on Internalizing Problems, Challenging Behaviours, Quality of Life and Clients' Satisfaction

    Science.gov (United States)

    Pruijssers, Addy; Meijel, Berno; Maaskant, Marian; Teerenstra, Steven; van Achterberg, Theo

    2017-01-01

    Background: People with intellectual disabilities are vulnerable to develop psychopathology (in particular anxiety) and related challenging behaviour. Method: A comparative multiple case study with an experimental and a control condition. Results: The application of the guideline showed a trend of decreases of internalizing problems (P = 0.07) and…

  5. A comparative study of the learning outcomes and students' satisfaction from problem-based learning and lecture-based learning in obstetrics and gynaecology

    Directory of Open Access Journals (Sweden)

    Valsa Chathampadathil Augusthy

    2016-05-01

    Conclusions: PBL method is a more effective instructional tool to foster critical thinking and problem solving skills among medical students as compared to the traditional LBL method and students are more satisfied with the PBL method in Obstetrics and Gynaecology. [Int J Reprod Contracept Obstet Gynecol 2016; 5(5.000: 1368-1374

  6. RESEARCH ON HUMAN RESOURCES MOTIVATION AND SATISFACTION

    Directory of Open Access Journals (Sweden)

    Zoltan-Bela FARKAS

    2014-06-01

    Full Text Available Many research studies on the human resources performance of the educational system have proved that pupils/students’ educational success depends, to a high degree, on the level of human resource motivation, as well as on their degree of professional satisfaction. Teachers’ who show a high level of motivation, both intrinsic and extrinsic, invest more into their activity, are more creative and more efficient in problem solving. The paper debates the results of an empirical study regarding the influence of pre-university teachers’ motivation and satisfaction regarding the general work conditions on their work performance by measuring the present motivation and satisfaction level. Furthermore, the determinant factors of their satisfaction with the work place are determined and analyzed. Finally, based on the statistical data process we will conclude and debate on the research hypothesis validation and the empirical model related to motivation – satisfaction – performance interdependences.

  7. Analysis of Methodologies for Identifying Exclusion Zones for Concentrating Solar Power (CSP); Analisis de Metodologias de Identificacion de Zonas de Exclusion para Estudios de Potencial de Energia Electrica Termosolar (CSP)

    Energy Technology Data Exchange (ETDEWEB)

    Dominguez, P.; Ramirez, L.; Navarro, A. A.; Polo, J.; Zarza, E.

    2013-07-01

    The aim of this study is the proposal of a valid and unique methodology to any territory of the potential for solar power generation, reducing subjectivity and enabling comparison of results from the examination of several existing methodologies for CSP, particularly those developed by the Institute for diversification and saving of Energy (IDAE), Greenpeace, National renewable energy laboratory (NREL) and the German Aerospace Center (DLR). Subsequently, we apply and compare the results obtained with those already installed CSP plants, giving an idea of the suitability of each methodology to locate plants in areas considered suitable. (Author)

  8. Exploration of Csp genes from temperate and glacier soils of the Indian Himalayas and in silico analysis of encoding proteins.

    Science.gov (United States)

    Latha, Prema K; Soni, Ravindra; Khan, Mahejibin; Marla, Soma S; Goel, Reeta

    2009-04-01

    The metagenomic Csp library was constructed from the temperate and glacier soils of central Himalaya, India followed by polymerase chain reaction (PCR) amplification. The library was further screened for low-temperature adaptation, and the positive recombinants were sorted out by determining changes in the melting temperature (Tm). A homology search of cloned sequence showed their identity with the Csp genes of Pseudomonas fluorescens, Psychrobacter cryohalolentis K5, and Shewanella spp MR-4. Amino acid sequence analysis annotated the presence of conserved aromatic and basic amino acids as well as RNA binding motifs from the cold shock domain. Furthermore, a PROSITE scan showed a moderate identity of less than 60% with the known cold shock-inducible proteins (ribosomal proteins, rbfA, DEAD-box helicases), cold acclimation protein, and temperature-induced protein (SRP1/TIP1). This study highlighted the prevalence of Csp genes from cold Himalayan environments that can be explored for tailor-made crop constructions in future.

  9. Effects of mutations in the Arabidopsis Cold Shock Domain Protein 3 (AtCSP3) gene on leaf cell expansion.

    Science.gov (United States)

    Yang, Yongil; Karlson, Dale

    2012-08-01

    The cold shock domain is among the most evolutionarily conserved nucleic acid binding domains from prokaryotes to higher eukaryotes, including plants. Although eukaryotic cold shock domain proteins have been extensively studied as transcriptional and post-transcriptional regulators during various developmental processes, their functional roles in plants remains poorly understood. In this study, AtCSP3 (At2g17870), which is one of four Arabidopsis thaliana c old s hock domain proteins (AtCSPs), was functionally characterized. Quantitative RT-PCR analysis confirmed high expression of AtCSP3 in reproductive and meristematic tissues. A homozygous atcsp3 loss-of-function mutant exhibits an overall reduced seedling size, stunted and orbicular rosette leaves, reduced petiole length, and curled leaf blades. Palisade mesophyll cells are smaller and more circular in atcsp3 leaves. Cell size analysis indicated that the reduced size of the circular mesophyll cells appears to be generated by a reduction of cell length along the leaf-length axis, resulting in an orbicular leaf shape. It was also determined that leaf cell expansion is impaired for lateral leaf development in the atcsp3 loss-of-function mutant, but leaf cell proliferation is not affected. AtCSP3 loss-of-function resulted in a dramatic reduction of LNG1 transcript, a gene that is involved in two-dimensional leaf polarity regulation. Transient subcellular localization of AtCSP3 in onion epidermal cells confirmed a nucleocytoplasmic localization pattern. Collectively, these data suggest that AtCSP3 is functionally linked to the regulation of leaf length by affecting LNG1 transcript accumulation during leaf development. A putative function of AtCSP3 as an RNA binding protein is also discussed in relation to leaf development.

  10. A review of Andasol 3 and perspective for parabolic trough CSP plants in South Africa

    Science.gov (United States)

    Dinter, Frank; Möller, Lucas

    2016-05-01

    Andasol 3 is a 50 MW parabolic trough concentrating solar power plant with thermal energy storage in Andalusia, southern Spain. Having started operating in 2011 as one of the first plants of its kind in Spain it has been followed by more than 50 in the country since. For the reason that CSP plants with storage have the potential to compete against fossil fuel fired plants much better than any other renewable energy source a long-term review of such a plant operating on a commercial scale is needed. With data at hand documenting Andasol 3's operation over the course of one year between July 2013 and June 2014 we intend to provide such a review. We calculated the plants overall efficiency, its capacity factor, the gross energy generation as well as auxiliary powers on a monthly basis to reflect upon its overall performance. It was also looked at the benefits caused by the thermal energy storage and especially how steadily and reliably the plant was able to operate. With basic background information about physical, geographical and meteorological aspects influencing the solar resource, its variation and a CSP plant's performance a qualitative estimation for a parabolic trough plant located in South Africa was made.

  11. Concentrating solar power (CSP) power cycle improvements through application of advanced materials

    Science.gov (United States)

    Siefert, John A.; Libby, Cara; Shingledecker, John

    2016-05-01

    Concentrating solar power (CSP) systems with thermal energy storage (TES) capability offer unique advantages to other renewable energy technologies in that solar radiation can be captured and stored for utilization when the sun is not shining. This makes the technology attractive as a dispatchable resource, and as such the Electric Power Research Institute (EPRI) has been engaged in research and development activities to understand and track the technology, identify key technical challenges, and enable improvements to meet future cost and performance targets to enable greater adoption of this carbon-free energy resource. EPRI is also involved with technically leading a consortium of manufacturers, government labs, and research organizations to enable the next generation of fossil fired power plants with advanced ultrasupercritical (A-USC) steam temperatures up to 760°C (1400°F). Materials are a key enabling technology for both of these seemingly opposed systems. This paper discusses how major strides in structural materials for A-USC fossil fired power plants may be translated into improved CSP systems which meet target requirements.

  12. Dynamic modelling and simulation of CSP plant based on supercritical carbon dioxide closed Brayton cycle

    Science.gov (United States)

    Hakkarainen, Elina; Sihvonen, Teemu; Lappalainen, Jari

    2017-06-01

    Supercritical carbon dioxide (sCO2) has recently gained a lot of interest as a working fluid in different power generation applications. For concentrated solar power (CSP) applications, sCO2 provides especially interesting option if it could be used both as the heat transfer fluid (HTF) in the solar field and as the working fluid in the power conversion unit. This work presents development of a dynamic model of CSP plant concept, in which sCO2 is used for extracting the solar heat in Linear Fresnel collector field, and directly applied as the working fluid in the recuperative Brayton cycle; these both in a single flow loop. We consider the dynamic model is capable to predict the system behavior in typical operational transients in a physically plausible way. The novel concept was tested through simulation cases under different weather conditions. The results suggest that the concept can be successfully controlled and operated in the supercritical region to generate electric power during the daytime, and perform start-up and shut down procedures in order to stay overnight in sub-critical conditions. Besides the normal daily operation, the control system was demonstrated to manage disturbances due to sudden irradiance changes.

  13. Stapled Peptides by Late-Stage C(sp(3) )-H Activation.

    Science.gov (United States)

    Noisier, Anaïs F M; García, Jesús; Ionuţ, Ioana A; Albericio, Fernando

    2017-01-02

    Despite the importance of stapled peptides for drug discovery, only few practical processes to prepare cross-linked peptides have been described; thus the structural diversity of available staple motifs is currently limited. At the same time, C-H activation has emerged as an efficient approach to functionalize complex molecules. Although there are many reports on the C-H functionalization of amino acids, examples of post-synthetic peptide C-H modification are rare and comprise almost only C(sp(2) )-H activation. Herein, we report the development of a palladium-catalyzed late-stage C(sp(3) )-H activation method for peptide stapling, affording an unprecedented hydrocarbon cross-link. This method was first employed to prepare a library of stapled peptides in solution. The compatibility with various amino acids as well as the influence of the size (i,i+3 and i,i+4) and length of the staple were investigated. Finally, a simple solid-phase procedure was also established.

  14. Life time analysis of thermal oil used as heat transfer fluid in CSP power plant

    Science.gov (United States)

    Grirate, H.; Zari, N.; Elmchaouri, A.; Molina, S.; Couturier, R.

    2016-05-01

    The present work describes stability testing of hydrogenated terphenyl (HT), thermal oil available in the market and considered as a potential HTF for CSP power plants. Before ageing tests, hydrogenated terphenyl was compared to Biphenyl/diphenyl oxide (DPO) at the initial state, which is the most commonly used HTF in CSP plants (SEGS VI and ANDASOL I) and included as a comparison material in the NREL HTF requirements. The (HT) stability tests were performed in sealed ampoules (stainless steel) under inert gas blanket in the range of temperature between 250°C and 350°C (max temperature of HT) for 500 hrs. After ageing, many investigations were made to track the thermal oil behavior after extended time over a range of temperature, such as chemical composition, flash point, viscosity, acid value…. Laboratory testing indicated that the hydrogenated terphenyl (HT) is stable after ageing process at a temperature of about 250°C. Nevertheless, it has shown signs of serious thermal cracking at elevated temperature which is reflected by low flash point temperature. Therefore, the system must be purged effectively to purge the volatile decomposition products.

  15. GEOTHERMAL / SOLAR HYBRID DESIGNS: USE OF GEOTHERMAL ENERGY FOR CSP FEEDWATER HEATING

    Energy Technology Data Exchange (ETDEWEB)

    Craig Turchi; Guangdong Zhu; Michael Wagner; Tom Williams; Dan Wendt

    2014-10-01

    This paper examines a hybrid geothermal / solar thermal plant design that uses geothermal energy to provide feedwater heating in a conventional steam-Rankine power cycle deployed by a concentrating solar power (CSP) plant. The geothermal energy represents slightly over 10% of the total thermal input to the hybrid plant. The geothermal energy allows power output from the hybrid plant to increase by about 8% relative to a stand-alone CSP plant with the same solar-thermal input. Geothermal energy is converted to electricity at an efficiency of 1.7 to 2.5 times greater than would occur in a stand-alone, binary-cycle geothermal plant using the same geothermal resource. While the design exhibits a clear advantage during hybrid plant operation, the annual advantage of the hybrid versus two stand-alone power plants depends on the total annual operating hours of the hybrid plant. The annual results in this draft paper are preliminary, and further results are expected prior to submission of a final paper.

  16. Economic assessment and optimal operation of CSP systems with TES in California electricity markets

    Science.gov (United States)

    Dowling, Alexander W.; Dyreson, Ana; Miller, Franklin; Zavala, Victor M.

    2017-06-01

    The economics and performance of concentrated power (CSP) systems with thermal energy storage (TES) inherently depend on operating policies and the surrounding weather conditions and electricity markets. We present an integrated economic assessment framework to quantify the maximum possible revenues from simultaneous energy and ancillary services sales by CSP systems. The framework includes both discrete start-up/shutdown restrictions and detailed physical models. Analysis of coinci-dental historical market and meteorological data reveals provision of ancillary services increases market revenue 18% to 37% relative to energy-only participation. Surprisingly, only 53% to 62% of these revenues are available through sole participation in the day-ahead market, indicating significant opportunities at faster timescales. Motivated by water-usage concerns and permitting requirements, we also describe a new nighttime radiative-enhanced dry-cooling system with cold-side storage that consumes no water and offers higher effciencies than traditional air-cooled designs. Operation of this new system is complicated by the cold-side storage and inherent coupling between the cooling system and power plant, further motivating integrated economic analysis.

  17. Methodology for Constructing Reduced-Order Power Block Performance Models for CSP Applications: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, M.

    2010-10-01

    The inherent variability of the solar resource presents a unique challenge for CSP systems. Incident solar irradiation can fluctuate widely over a short time scale, but plant performance must be assessed for long time periods. As a result, annual simulations with hourly (or sub-hourly) timesteps are the norm in CSP analysis. A highly detailed power cycle model provides accuracy but tends to suffer from prohibitively long run-times; alternatively, simplified empirical models can run quickly but don?t always provide enough information, accuracy, or flexibility for the modeler. The ideal model for feasibility-level analysis incorporates both the detail and accuracy of a first-principle model with the low computational load of a regression model. The work presented in this paper proposes a methodology for organizing and extracting information from the performance output of a detailed model, then using it to develop a flexible reduced-order regression model in a systematic and structured way. A similar but less generalized approach for characterizing power cycle performance and a reduced-order modeling methodology for CFD analysis of heat transfer from electronic devices have been presented. This paper builds on these publications and the non-dimensional approach originally described.

  18. Satisfaction and 'comparison sharing'

    DEFF Research Database (Denmark)

    Amilon, Anna

    2009-01-01

    the probability of satisfaction. Results show that comparison sharing impacts satisfaction for women, and that those women who share more equally than their peers are more likely to be satisfied, whereas comparison sharing has no influence on satisfaction for men. Also, parents are less likely to be satisfied...

  19. The role of CSP in the electricity system of South Africa - technical operation, grid constraints, market structure and economics

    Science.gov (United States)

    Kost, Christoph; Friebertshäuser, Chris; Hartmann, Niklas; Fluri, Thomas; Nitz, Peter

    2017-06-01

    This paper analyses the role of solar technologies (CSP and PV) and their interaction in the South African electricity system by using a fundamental electricity system modelling (ENTIGRIS-SouthAfrica). The model is used to analyse the South African long-term electricity generation portfolio mix, optimized site selection and required transmission capacities until the year 2050. Hereby especially the location and grid integration of solar technology (PV and CSP) and wind power plants is analysed. This analysis is carried out by using detailed resource assessment of both technologies. A cluster approach is presented to reduce complexity by integrating the data in an optimization model.

  20. Co-generation and innovative heat storage systems in small-medium CSP plants for distributed energy production

    Science.gov (United States)

    Giaconia, Alberto; Montagnino, Fabio; Paredes, Filippo; Donato, Filippo; Caputo, Giampaolo; Mazzei, Domenico

    2017-06-01

    CSP technologies can be applied for distributed energy production, on small-medium plants (on the 1 MW scale), to satisfy the needs of local communities, buildings and districts. In this perspective, reliable, low-cost, and flexible small/medium multi-generative CSP plants should be developed. Four pilot plants have been built in four Mediterranean countries (Cyprus, Egypt, Jordan, and Italy) to demonstrate the approach. In this paper, the plant built in Italy is presented, with specific innovations applied in the linear Fresnel collector design and the Thermal Energy Storage (TES) system, based on a single the use of molten salts but specifically tailored for small scale plants.

  1. Effect of coriander seed powder (CSP) on 1, 2-dimethyl hydrazine-induced changes in antioxidant enzyme system and lipid peroxide formation in rats.

    Science.gov (United States)

    Anilakumar, K R; Khanum, Farhath; Bawa, A S

    2010-03-01

    The effect of coriander seed powder (CSP), a culinary spice, on dimethyl hydrazine (DMH)-induced oxidative stress and toxicity in rats was investigated. Six groups of 6 male rats each were maintained for 12 weeks as (a) Control; (b) DMH (60 mg/kg body weight) injected; (c) 5% CSP incorporated diet; (d) 5% CSP incorporated diet + DMH; (e) 10% CSP incorporated diet; and (f) 10% CSP incorporated diet + DMH. The rats were sacrificed after 12 weeks. The results revealed that DMH administration lead to an increase in hepatic lipid peroxidation associated with reduction in levels of glutathione (GSH), activity of superoxide dismutase (SOD), and catalase and glucose-6-phosphate dehydrogenase. The coadministration of CSP and DMH diminished the hepatic malondialdehyde (MDA) significantly as compared to DMH-alone administered rats. The intake of coriander seeds at 10% level also enhanced the hepatic GSH-redox system by elevating GSH-Px, GSSGR, and GST activities. The DMH-induced decline in SOD and catalase activities was brought to normal by 10% CSP. The coadministration of CSP and the DMH produced a significant reduction in MDA and enhancement in catalase activity as compared to control. Coriander powder at 5% and 10% levels produced a significant rise in colonic catalase and GSH-Px. The coriander seeds produced significant beneficial effects by reducing the DMH-induced oxidative stress and enhancing the tissue levels of antioxidant/detoxification agent in tissues.

  2. No difference in the prevalence of cavum septum pellucidum (CSP) between first-episode schizophrenia patients, offspring of schizophrenia patients and healthy controls.

    Science.gov (United States)

    Rajarethinam, Rajaprabhakaran; Sohi, Jasdeep; Arfken, Cynthia; Keshavan, Matcheri S

    2008-08-01

    The reported prevalence of cavum septum pellucidum (CSP), is extremely variable (from 0.1% to 85%) depending upon the measurement method or imaging resolution. Higher prevalence of CSP has been found in schizophrenia. In this study, we examined the prevalence of CSP in a large number of first-episode schizophrenia patients, young relatives of schizophrenia patients and healthy controls. We manually measured CSP using 1.5 mm T1 MRI scans from ongoing studies at University of Pittsburgh in 89 first-episode patients with schizophrenia (age=23.8+/-7.4, M/F=61/28), 64 genetically at-risk individuals (offspring and siblings of schizophrenia patients, age 15.2+/-3.7, M/F=29/32) and 120 comparison subjects (n=120, age=22.1+/-7.9, M/F62/50). CSP was present in 64% of the first-episode patients (mean length 1.87+/-2.3 mm), 64.6% of the at-risk individuals (1.64+/-1.96 mm) and 64.2% of the normal controls (1.88+/-2.0 mm). There was no difference in the prevalence of CSP exceeding 4 mm. We also did not find any influence of the sex or age in the presence or size of CSP. Our data cast doubt on the significance of CSP as markers of neurodevelopmental pathology in schizophrenia.

  3. An Interplay among FIS, H-NS, and Guanosine Tetraphosphate Modulates Transcription of the Escherichia coli cspA Gene under Physiological Growth Conditions

    Science.gov (United States)

    Brandi, Anna; Giangrossi, Mara; Giuliodori, Anna M.; Falconi, Maurizio

    2016-01-01

    CspA, the most characterized member of the csp gene family of Escherichia coli, is highly expressed not only in response to cold stress, but also during the early phase of growth at 37°C. Here, we investigate at molecular level the antagonistic role played by the nucleoid proteins FIS and H-NS in the regulation of cspA expression under non-stress conditions. By means of both probing experiments and immunological detection, we demonstrate in vitro the existence of binding sites for these proteins on the cspA regulatory region, in which FIS and H-NS bind simultaneously to form composite DNA-protein complexes. While the in vitro promoter activity of cspA is stimulated by FIS and repressed by H-NS, a compensatory effect is observed when both proteins are added in the transcription assay. Consistently with these findings, inactivation of fis and hns genes reversely affect the in vivo amount of cspA mRNA. In addition, by means of strains expressing a high level of the alarmone guanosine tetraphosphate ((p)ppGpp) and in vitro transcription assays, we show that the cspA promoter is sensitive to (p)ppGpp inhibition. The (p)ppGpp-mediated expression of fis and hns genes is also analyzed, thus clarifying some aspects of the regulatory loop governing cspA transcription. PMID:27252944

  4. An interplay among FIS, H-NS and guanosine tetraphosphate modulates transcription of the Escherichia coli cspA gene under physiological growth conditions

    Directory of Open Access Journals (Sweden)

    Anna eBrandi

    2016-05-01

    Full Text Available CspA, the most characterized member of the csp gene family of Escherichia coli, is highly expressed not only in response to cold stress, but also during the early phase of growth at 37°C. Here, we investigate at molecular level the antagonistic role played by the nucleoid proteins FIS and H-NS in the regulation of cspA expression under non-stress conditions. By means of both probing experiments and immunological detection, we demonstrate in vitro the existence of binding sites for these proteins on the cspA regulatory region, in which FIS and H-NS bind simultaneously to form composite DNA-protein complexes. While the in vitro promoter activity of cspA is stimulated by FIS and repressed by H-NS, a compensatory effect is observed when both proteins are added in the transcription assay. Consistently with these findings, inactivation of fis and hns genes reversely affect the in vivo amount of cspA mRNA. In addition, by means of strains expressing a high level of the alarmone guanosine tetraphosphate ((pppGpp and in vitro transcription assays, we show that the cspA promoter is sensitive to (pppGpp inhibition. The (pppGpp-mediated expression of fis and hns genes is also analyzed, thus clarifying some aspects of the regulatory loop governing cspA transcription.

  5. Fusion peptide P15-CSP shows antibiofilm activity and pro-osteogenic activity when deposited as a coating on hydrophilic but not hydrophobic surfaces.

    Science.gov (United States)

    Li, Xian; Contreras-Garcia, Angel; LoVetri, Karen; Yakandawala, Nandadeva; Wertheimer, Michael R; De Crescenzo, Gregory; Hoemann, Caroline D

    2015-12-01

    In the context of porous bone void filler for oral bone reconstruction, peptides that suppress microbial growth and promote osteoblast function could be used to enhance the performance of a porous bone void filler. We tested the hypothesis that P15-CSP, a novel fusion peptide containing collagen-mimetic osteogenic peptide P15, and competence-stimulating peptide (CSP), a cationic antimicrobial peptide, has emerging properties not shared by P15 or CSP alone. Peptide-coated surfaces were tested for antimicrobial activity toward Streptoccocus mutans, and their ability to promote human mesenchymal stem cell (MSC) attachment, spreading, metabolism, and osteogenesis. In the osteogenesis assay, peptides were coated on tissue culture plastic and on thin films generated by plasma-enhanced chemical vapor deposition to have hydrophilic or hydrophobic character (water contact angles 63°, 42°, and 92°, respectively). S. mutans planktonic growth was specifically inhibited by CSP, whereas biofilm formation was inhibited by P15-CSP. MSC adhesion and actin stress fiber formation was strongly enhanced by CSP, P15-CSP, and fibronectin coatings and modestly enhanced by P15 versus uncoated surfaces. Metabolic assays revealed that CSP was slightly cytotoxic to MSCs. MSCs developed alkaline phosphatase activity on all surfaces, with or without peptide coatings, and consistently deposited the most biomineralized matrix on hydrophilic surfaces coated with P15-CSP. Hydrophobic thin films completely suppressed MSC biomineralization, consistent with previous findings of suppressed osteogenesis on hydrophobic bioplastics. Collective data in this study provide new evidence that P15-CSP has unique dual capacity to suppress biofilm formation, and to enhance osteogenic activity as a coating on hydrophilic surfaces.

  6. Meditations on Quantified Constraint Satisfaction

    CERN Document Server

    Chen, Hubie

    2012-01-01

    The quantified constraint satisfaction problem (QCSP) is the problem of deciding, given a structure and a first-order prenex sentence whose quantifier-free part is the conjunction of atoms, whether or not the sentence holds on the structure. One obtains a family of problems by defining, for each structure B, the problem QCSP(B) to be the QCSP where the structure is fixed to be B. In this article, we offer a viewpoint on the research program of understanding the complexity of the problems QCSP(B) on finite structures. In particular, we propose and discuss a group of conjectures; throughout, we attempt to place the conjectures in relation to existing results and to emphasize open issues and potential research directions.

  7. Villacidro solar demo plant: Integration of small-scale CSP and biogas power plants in an industrial microgrid

    Science.gov (United States)

    Camerada, M.; Cau, G.; Cocco, D.; Damiano, A.; Demontis, V.; Melis, T.; Musio, M.

    2016-05-01

    The integration of small scale concentrating solar power (CSP) in an industrial district, in order to develop a microgrid fully supplied by renewable energy sources, is presented in this paper. The plant aims to assess in real operating conditions, the performance, the effectiveness and the reliability of small-scale concentrating solar power technologies in the field of distributed generation. In particular, the potentiality of small scale CSP with thermal storage to supply dispatchable electricity to an industrial microgrid will be investigated. The microgrid will be realized in the municipal waste treatment plant of the Industrial Consortium of Villacidro, in southern Sardinia (Italy), which already includes a biogas power plant. In order to achieve the microgrid instantaneous energy balance, the analysis of the time evolution of the waste treatment plant demand and of the generation in the existing power systems has been carried out. This has allowed the design of a suitable CSP plant with thermal storage and an electrochemical storage system for supporting the proposed microgrid. At the aim of obtaining the expected energy autonomy, a specific Energy Management Strategy, which takes into account the different dynamic performances and characteristics of the demand and the generation, has been designed. In this paper, the configuration of the proposed small scale concentrating solar power (CSP) and of its thermal energy storage, based on thermocline principle, is initially described. Finally, a simulation study of the entire power system, imposing scheduled profiles based on weather forecasts, is presented.

  8. Socio-economic effects of a HYSOL CSP plant located in different countries: An input output analysis

    NARCIS (Netherlands)

    Corona, B.; López, A.; San Miguel, G.

    2016-01-01

    The aim of this paper is to estimate the socioeconomic effects associated with the production of electricity by a CSP plant with HYSOL configuration, using Input Output Analysis. These effects have been estimated in terms of production of Goods and Services (G&S), multiplier effect, value added,

  9. CSP and takeout genes modulate the switch between attraction and repulsion during behavioral phase change in the migratory locust.

    Directory of Open Access Journals (Sweden)

    Wei Guo

    Full Text Available Behavioral plasticity is the most striking trait in locust phase transition. However, the genetic basis for behavioral plasticity in locusts is largely unknown. To unravel the molecular mechanisms underlying the behavioral phase change in the migratory locust Locusta migratoria, the gene expression patterns over the time courses of solitarization and gregarization were compared by oligonucleotide microarray analysis. Data analysis revealed that several gene categories relevant to peripheral olfactory perception are strongly regulated in a total of 1,444 differentially expressed genes during both time courses. Among these candidate genes, several CSP (chemosensory protein genes and one takeout gene, LmigTO1, showed higher expression in gregarious and solitarious locusts, respectively, and displayed opposite expression trends during solitarization and gregarization. qRT-PCR experiments revealed that most CSP members and LmigTO1 exhibited antenna-rich expressions. RNA interference combined with olfactory behavioral experiments confirmed that the CSP gene family and one takeout gene, LmigTO1, are involved in the shift from repulsion to attraction between individuals during gregarization and in the reverse transition during solitarization. These findings suggest that the response to locust-emitted olfactory cues regulated by CSP and takeout genes is involved in the behavioral phase change in the migratory locust and provide a previously undescribed molecular mechanism linked to the formation of locust aggregations.

  10. Hydrogen reduction in heat transfer fluid in parabolic trough CSP plants

    Science.gov (United States)

    Lang, Christoph; Belkheir, Mohamed; Kim, Eungkyu; Davidson, Chet; Holden, Bruce; Hook, Bruce

    2017-06-01

    Hydrogen (H2) has been found to be generated in very small proportions when diphenyl oxide/ biphenyl heat transfer fluid (HTF) is operated at temperatures close to 400°C. At such temperatures, H2 can permeate through steel walls to the vacuum space of parabolic trough (PT) solar receivers, where it increases heat losses that can significantly impact the economics of PT concentrated solar power plants. A novel process for the reduction of the H2 concentration in HTF via stripping and gas separation has been simulated for the operation in PT CSP plants. Applying the proposed process, the concentration of H2 in HTF can be reduced down to 1 ppb. A cost comparison between the H2 separation process and frequent PT receivers replacement was conducted and found that proposed H2 removal process is more economic.

  11. Initial Investigation into the Potential of CSP Industrial Process Heat for the Southwest United States

    Energy Technology Data Exchange (ETDEWEB)

    Kurup, Parthiv [National Renewable Energy Lab. (NREL), Golden, CO (United States); Turchi, Craig [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2015-11-01

    After significant interest in the 1970s, but relatively few deployments, the use of solar technologies for thermal applications, including enhanced oil recovery (EOR), desalination, and industrial process heat (IPH), is again receiving global interest. In particular, the European Union (EU) has been a leader in the use, development, deployment, and tracking of Solar Industrial Process Heat (SIPH) plants. The objective of this study is to ascertain U.S. market potential of IPH for concentrating collector technologies that have been developed and promoted through the U.S. Department of Energy's Concentrating Solar Power (CSP) Program. For this study, the solar-thermal collector technologies of interest are parabolic trough collectors (PTCs) and linear Fresnel (LF) systems.

  12. PREFACE: International conference on Computer Simulation in Physics and beyond (CSP2015)

    Science.gov (United States)

    2016-02-01

    The International conference on Computer Simulations in Physics and beyond (CSP2015) was held from 6-10 September 2015 at the campus of the Moscow Institute for Electronics and Mathematics (MIEM), National Research University Higher School of Economics, Moscow. Computer simulations are in increasingly popular tool for scientific research, supplementing experimental and analytical research. The main goal of the conference is contributing to the development of methods and algorithms which take into account trends in hardware development, which may help with intensive research. The conference also allowed senior scientists and students to have the opportunity to speak each other and exchange ideas and views on the developments in the area of high-performance computing in science. We would like to take this opportunity to thank our sponsors: the Russian Foundation for Basic Research, Federal Agency of Scientific Organizations, and Higher School of Economics.

  13. Robust optimisation for self-scheduling and bidding strategies of hybrid CSP-fossil power plants

    DEFF Research Database (Denmark)

    Pousinho, H.M.I.; Contreras, J.; Pinson, P.

    2015-01-01

    This paper describes a profit-maximisation model for a hybrid concentrated solar power (CSP) producer participating in a day-ahead market with bilateral contracts, where there is no correlation between the electricity market price and the solar irradiation. Backup system coordination is included...... between the molten-salt thermal energy storage (TES) and a fossil-fuel backup to overcome solar irradiation insufficiency, but with emission allowances constrained in the backup system to mitigate carbon footprint. A robust optimisation-based approach is proposed to provide the day-ahead self......-schedule under the worst-case realisation of uncertainties due to the electricity market prices and the thermal production from the solar field (SF). These uncertainties are modelled by asymmetric prediction intervals around average values. Additionally, a budget parameter is used to parameterise the degree...

  14. Consistent multiphysics simulation of a central tower CSP plant as applied to ISTORE

    Science.gov (United States)

    Votyakov, Evgeny V.; Papanicolas, Costas N.

    2017-06-01

    We present a unified consistent multiphysics approach to model a central tower CSP plant. The framework for the model includes Monte Carlo ray tracing (RT) and computational fluid dynamics (CFD) components utilizing the OpenFOAM C++ software library. The RT part works effectively with complex surfaces of engineering design given in CAD formats. The CFD simulation, which is based on 3D Navier-Stokes equations, takes into account all possible heat transfer mechanisms: radiation, conduction, and convection. Utilizing this package, the solar field of the experimental Platform for Research, Observation, and TEchnological Applications in Solar Energy (PROTEAS) and the Integrated STOrage and Receiver (ISTORE), developed at the Cyprus Institute, are being examined.

  15. LCOE reduction potential of parabolic trough and solar tower CSP technology until 2025

    Science.gov (United States)

    Dieckmann, Simon; Dersch, Jürgen; Giuliano, Stefano; Puppe, Michael; Lüpfert, Eckhard; Hennecke, Klaus; Pitz-Paal, Robert; Taylor, Michael; Ralon, Pablo

    2017-06-01

    Concentrating Solar Power (CSP), with an installed capacity of 4.9 GW by 2015, is a young technology compared to other renewable power generation technologies. A limited number of plants and installed capacity in a small challenging market environment make reliable and transparent cost data for CSP difficult to obtain. The International Renewable Energy Agency (IRENA) and the DLR German Aerospace Center gathered and evaluated available cost data from various sources for this publication in order to yield transparent, reliable and up-to-date cost data for a set of reference parabolic trough and solar tower plants in the year 2015 [1]. Each component of the power plant is analyzed for future technical innovations and cost reduction potential based on current R&D activities, ongoing commercial developments and growth in market scale. The derived levelized cost of electricity (LCOE) for 2015 and 2025 are finally contrasted with published power purchase agreements (PPA) of the NOOR II+III power plants in Morocco. At 7.5% weighted average cost of capital (WACC) and 25 years economic life time, the levelized costs of electricity for plants with 7.5 (trough) respectively 9 (tower) full-load hours thermal storage capacity decrease from 14-15 -ct/kWh today to 9-10 -ct/kWh by 2025 for both technologies at direct normal irradiation of 2500 kWh/(m².a). The capacity factor increases from 41.1% to 44.6% for troughs and from 45.5% to 49.0% for towers. Financing conditions are a major cost driver and offer potential for further cost reduction with the maturity of the technology and low interest rates (6-7 - ct/kWh for 2% WACC at 2500 kWh/(m2.a) in 2025).

  16. Integrated assessment procedure for determining the fracture strength of glass components in CSP systems

    Directory of Open Access Journals (Sweden)

    L. Guerra Rosa

    2014-10-01

    Full Text Available The structural integrity and reliability of glass components are key issues for concentrated solar power (CSP systems. For example, the glass windows in a solar furnace may suffer catastrophic fracture due to thermal and structural loadings, including reaction chamber pressure cycling. Predicting design strength provides the basis for which the optical components and mounting assembly can be designed so that failure does not occur over the operational lifetime of a given CSP system. The fracture strength of brittle materials is dependent on the size and distribution of cracks or surface flaws. Due to the inherent brittleness of glass resulting in catastrophic failure, conservative design approaches are currently used for the development of optical components made of glass, which generally neglect the specific glass composition as well as subcritical crack growth, surface area under stress, and nature of the load – either static or cyclic – phenomena. In this paper, several methods to characterize the strength of glass are discussed to aid engineers in predicting a design strength for a given surface finish, glass type, and environment. Based on the Weibull statistical approach and experimental data available on testing silica glass rod specimens, a theoretical model is developed for estimating their fracture strength under typical loading conditions. Then, an integrated assessment procedure for structural glass elements is further developed based on fracture mechanics and the theory of probability, which is based on the probabilistic modelling of the complex behaviour of glass fracture but avoids the complexity for calculation in applications. As an example, the design strength of a glass window suitable for a solar furnace reaction chamber is highlighted.

  17. Optimizing eSTR Algorithm for Solving Constraint Satisfaction Problems%求解约束可满足问题的eSTR算法优化

    Institute of Scientific and Technical Information of China (English)

    王瑞伟; 李占山; 李宏博

    2016-01-01

    scope is equivalent to original constraint scope .At the same time ,minimal constraint scope can reduce further space cost of eSTR2 algorithm by deleting columns of the tables in constraints ,and PWsup data structure can reduce the CPU running time by avoiding some unnecessary checking of Pair‐Wise‐support (PW‐support) ,since tuples in table of the constraint may not lose any PW‐supports on the tables of other neighbour constraints .The experimental results show that combining our methods with eSTR2 algorithm can obviously outperform eSTR2 and eSTR2w on many instances of different problems ,since it reduces the space cost and CPU running time of eSTR algorithm .

  18. Chromobacterium Csp_P Reduces Malaria and Dengue Infection in Vector Mosquitoes and Has Entomopathogenic and In Vitro Anti-pathogen Activities

    Science.gov (United States)

    Bahia, Ana C.; Saraiva, Raul G.; Dong, Yuemei; Kang, Seokyoung; Tripathi, Abhai; Mlambo, Godfree; Dimopoulos, George

    2014-01-01

    Plasmodium and dengue virus, the causative agents of the two most devastating vector-borne diseases, malaria and dengue, are transmitted by the two most important mosquito vectors, Anopheles gambiae and Aedes aegypti, respectively. Insect-bacteria associations have been shown to influence vector competence for human pathogens through multi-faceted actions that include the elicitation of the insect immune system, pathogen sequestration by microbes, and bacteria-produced anti-pathogenic factors. These influences make the mosquito microbiota highly interesting from a disease control perspective. Here we present a bacterium of the genus Chromobacterium (Csp_P), which was isolated from the midgut of field-caught Aedes aegypti. Csp_P can effectively colonize the mosquito midgut when introduced through an artificial nectar meal, and it also inhibits the growth of other members of the midgut microbiota. Csp_P colonization of the midgut tissue activates mosquito immune responses, and Csp_P exposure dramatically reduces the survival of both the larval and adult stages. Ingestion of Csp_P by the mosquito significantly reduces its susceptibility to Plasmodium falciparum and dengue virus infection, thereby compromising the mosquito's vector competence. This bacterium also exerts in vitro anti-Plasmodium and anti-dengue activities, which appear to be mediated through Csp_P -produced stable bioactive factors with transmission-blocking and therapeutic potential. The anti-pathogen and entomopathogenic properties of Csp_P render it a potential candidate for the development of malaria and dengue control strategies. PMID:25340821

  19. BdorCSP2 is important for antifeed and oviposition-deterring activities induced by Rhodojaponin-III against Bactrocera dorsalis.

    Directory of Open Access Journals (Sweden)

    Xin Yi

    Full Text Available Rhodojaponin-III is a nonvolatile botanical grayanoid diterpene compound, which has antifeedant and oviposition deterrence effects against many kinds of insects. However, the molecular mechanism of the chemoreception process remains unknown. In this study, the important role of BdorCSP2 in the recognition of Rhodojaponin-III was identified. The full length cDNA encoding BdorCSP2 was cloned from legs of Bactrocera dorsalis. The results of expression pattern revealed that BdorCSP2 was abundantly expressed in the legs of adult B. dorsalis. Moreover, the expression of BdorCSP2 could be up-regulated by Rhodojaponin-III. In order to gain comprehensive understanding of the recognition process, the binding affinity between BdorCSP2 and Rhodojaponin-III was measured by fluorescence binding assay. Silencing the expression of BdorCSP2 through the ingestion of dsRNA could weaken the effect of oviposition deterrence and antifeedant of Rhodojaponin-III. These results suggested that BdorCSP2 of B. dorsalis could be involved in chemoreception of Rhodojaponin-III and played a critical role in antifeedant and oviposition behaviors induced by Rhodojaponin-III.

  20. Citizen (Dis)satisfaction

    DEFF Research Database (Denmark)

    Olsen, Asmus Leth

    2015-01-01

    This article introduces the importance of equivalence framing for understanding how satisfaction measures affect citizens’ evaluation of public services. Does a 90 percent satisfaction rate have a different effect than a logically equivalent 10 percent dissatisfaction rate? Two experiments were...... conducted on citizens’ evaluations of hospital services in a large, nationally representative sample of Danish citizens. Both experiments found that exposing citizens to a patient dissatisfaction measure led to more negative views of public service than exposing them to a logically equivalent satisfaction...

  1. Management Satisfaction Survey

    Data.gov (United States)

    Office of Personnel Management — The Chief Human Capital Officers' Managers' Satisfaction Survey asks managers to rate their perception of workforce planning, interaction with and levels of support...

  2. Predictors of Life Satisfaction among Guidance Counselors and Administrators Employed by the Ministry of Education in Turkey

    Science.gov (United States)

    Poyrazli, Senel; Yesilyaprak, Binnur; Milliogullari, Ali

    2012-01-01

    Problem Statement: A review of the literature indicated that both job satisfaction and life satisfaction are important to an individual's overall wellbeing. While there have been extensive studies related to job satisfaction in a Turkish context, studies related to the predictors of life satisfaction are limited. Purpose of Study: The purpose of…

  3. Presence of a polymorphism of the csp-12 related with susceptibility to severe sepsis in colombian individuals from three different populations Presencia de un polimorfismo de la CSP-12 relacionado con susceptibilidad a sepsis grave en una muestra de tres poblaciones colombianas

    Directory of Open Access Journals (Sweden)

    Gabriel de Jesús Bedoya

    2010-05-01

    Full Text Available

    Sepsis, a syndrome of systemic response to infection is a major public health problem, because it is associated with high morbidity and mortality. Among the genes shown to be associated with this syndrome, there is one which encodes for caspase-12 (csp-12. Within this gene, the single nucleotide polymorphism 125T>C located in exon 4, which predicts a long form of the protein, has been associated with severe sepsis and increased related mortality. On the other hand, higher frequency of allele L has been reported in African American populations.

     

    The present study evaluated the csp-12 polymorphism 125T>C in 128 individuals: 81 patients with sepsis, 23 healthy African Colombian subjects and 24 healthy individuals from Medellin-Colombia. We found 121 individuals homozygous S/S (csp-12 short in these three populations and 7 heterozygotes S/L, discriminated as follows: 3 septic patients, 3 African Colombians and 1 healthy subject from Medellin. This preliminary data suggest that the csp-12L allele is present in the Colombian population, both in African

  4. Measuring patient satisfaction.

    Science.gov (United States)

    Levin, Roger

    2005-03-01

    Many businesses use customer satisfaction surveys successfully. You may notice that you find one in almost every restaurant or hotel room. I do not think it is a coincidence that the hotel industry provides some of the finest customer service available. When it comes to providing excellent customer service, dental practices can learn from businesses that regularly assess customer satisfaction.

  5. Citizen (Dis)satisfaction

    DEFF Research Database (Denmark)

    Olsen, Asmus Leth

    2015-01-01

    This article introduces the importance of equivalence framing for understanding how satisfaction measures affect citizens’ evaluation of public services. Does a 90 percent satisfaction rate have a different effect than a logically equivalent 10 percent dissatisfaction rate? Two experiments were...... to dissatisfaction rates. The results call for further study of equivalence framing of performance information....

  6. Customer satisfaction measurement

    Directory of Open Access Journals (Sweden)

    Maričić Branko R.

    2012-01-01

    Full Text Available Customer satisfaction is important in business management as a basis for long-term profitability of a single line of products and services and the company as a whole. Customer satisfaction in modern market conditions is characterized by a large number of alternatives that can satisfy the same need or desire of consumers, and are a prerequisite for the retention, loyalty, and positive verbal communication between companies and vendors on one hand and consumers on the other. Companies are investing more and more investment and management efforts in improving customer satisfaction. Improving customer satisfaction and its measurement involves the taking of appropriate marketing strategies and tactics, as well as corrective measures. This paper presents the well-known attempts to measure customers' satisfaction at the macro and micro level of marketing analysis. The index of consumer satisfaction is an important indicator of achieved quality and market performance of companies and can be measured on a micro and macro level. National customer satisfaction indexes are useful framework for analyzing the competitiveness of national economies, industries and individual companies and are used for a variety of other aspects of observation and analysis. Standardization of consumer satisfaction indexes in different countries allows comparability of the data, giving a new quality of analysis in the era of globalization and internationalization of business.

  7. Designing satisfaction studies

    DEFF Research Database (Denmark)

    Kristensen, Kai; Eskildsen, Jacob Kjær

    2007-01-01

    In the effect sampling method, presentation of researcher, the intro text, the order of questions in the questionnaire along with the number of categories in the rating scale is tested in relation to the design of satisfaction studies. Based on the analyses specific recommendations for designing...... satisfaction studies are given....

  8. Relationship between Teachers' Job Satisfaction and Students' Academic Performance

    Science.gov (United States)

    Iqbal, Asif; Aziz, Fakhra; Farooqi, Tahir Khan; Ali, Shabbir

    2016-01-01

    Problem Statement: An extensive literature on Job satisfaction has shown, teachers who are satisfied with their jobs perform better. Along with various indicators of teachers' job satisfaction, variables such as organizational justice (Nojani, Arjmandnia, Afrooz, & Rajabi, 2012), organizational culture (Hosseinkhanzadeh, Hosseinkhanzadeh,…

  9. Integrative self-knowledge and marital satisfaction.

    Science.gov (United States)

    Ghorbani, Nima; Watson, P J; Fayyaz, Fatemeh; Chen, Zhuo

    2015-01-01

    Married Iranian couples (N = 210) responded to the Integrative Self-Knowledge Scale along with a measure of marital satisfaction, the International Personality Item Pool (IPIP) Big Five, and an index of interpersonal problems. Integrative self-knowledge correlated positively with marital satisfaction, positively with all but the extraversion Big Five traits, and negatively with three indices of interpersonal problems. Integrative self-knowledge also mediated a number of personality relationships with marital satisfaction. Spouse-ratings of personality confirmed the adaptive implications of integrative self-knowledge for marriage. Linkages with questionnaire response styles supported the description of integrative self-knowledge as a measure of both self-insight and self-development. Results confirmed the potential of integrative self-knowledge for studying self-regulatory processes and suggested that the enhancement of self-knowledge may be a useful goal in efforts to strengthen marriages.

  10. Measuring Satisfaction with Student Housing Facilities

    Directory of Open Access Journals (Sweden)

    Nurul U.M. Najib

    2011-01-01

    Full Text Available Problem statement: In the past decade, resident satisfaction has been used as an important indicator in evaluating student housing quality and services. This study investigates the level of resident satisfaction with student housing facilities. In particular, it examines the level of student satisfaction with living accommodations at one of the leading universities in Malaysia. Approach: The residential satisfaction framework was based on post-occupancy evaluations and has been utilized in previous studies; we expand the framework to address physical and social variables. Face-to-face surveys were conducted with participants who were selected using a cluster sampling technique. Results: The results show a mean satisfaction level of 2.61, which indicates that students are generally satisfied with student housing facilities. This score was lower, however, than the results of previous studies. Conclusion: By assessing residential satisfaction among students, we hope to provide valuable feedback to housing administrators and facility managers of higher learning institutions, thus enabling them to improve their services and offer better housing facilities in the near future.

  11. Career satisfaction and burnout among Ghanaian physicians.

    Science.gov (United States)

    Opoku, Samuel T; Apenteng, Bettye A

    2014-03-01

    Thus far, there has been limited inquiry into the factors associated with physician career satisfaction and burnout in Ghana, although the two have been linked to the brain drain problem. The objective of this study was to assess career satisfaction and burnout among physicians practicing in a developing nation, Ghana. A 21-item instrument was used to assess career satisfaction among actively practicing Ghanaian physicians, using items adapted from the Physician Worklife Study survey. Burnout was assessed using the Abbreviated Maslach's Burnout Inventory. Two hundred physicians participated in the online survey from December 2012 to February 2013. Generally, physicians in Ghana expressed moderate overall career satisfaction. However, they were least satisfied with the availability of resources, their compensation and work-life balance. Overall, burnout was low in the study population; however physicians exhibited moderate levels of emotional exhaustion. Career satisfaction was negatively associated with the burnout dimensions of depersonalization, emotional exhaustion and low personal accomplishment. Health policy-makers in Ghana should address issues relating to resource adequacy, compensation and the work-life balance of physicians in order to improve the overall career satisfaction of an already dwindling physician workforce.

  12. Patient satisfaction: what works in radiology.

    Science.gov (United States)

    Lester, B

    2001-01-01

    In recent years, patient satisfaction in healthcare has been criticized as much as poor customer satisfaction in other industries. Many times, the financial problems that exist are used as an excuse for poor patient satisfaction. This excuse can never justify treating a patient rudely or with disrespect. Patients are the essence of why we exist in radiology. Their increasing scrutiny--over the care they receive and the services we provide--will significantly impact the future of healthcare in the United States. Healthcare employees need to focus on teamwork and respect for patients as well as co-workers as foundations for improving patient satisfaction. True leaders will set the mood of the healthcare facility by "practicing what they preach." Some basic rules to follow to improve customer satisfaction include listening to employees, recognizing exceptional behavior, correcting negative behavior, communicating expectations to employees and listening to patients' needs and concerns. The secret to successful patient satisfaction is not only exceeding the expectations of our patients, but also exceeding the expectations of our employees who take care of patients.

  13. Synthesis of ethoxy dibenzooxaphosphorin oxides through palladium-catalyzed C(sp2–H activation/C–O formation

    Directory of Open Access Journals (Sweden)

    Seohyun Shin

    2014-05-01

    Full Text Available We report an efficient Pd-catalyzed C(sp2–H activation/C–O bond formation for the synthesis of ethoxy dibenzooxaphosphorin oxides from 2-(arylarylphosphonic acid monoethyl esters under aerobic conditions.

  14. Solar Thermoelectricity via Advanced Latent Heat Storage: A Cost-Effective Small-Scale CSP Application

    Energy Technology Data Exchange (ETDEWEB)

    Glatzmaier, Greg C.; Rea, J.; Olsen, Michele L.; Oshman, C.; Hardin, C.; Alleman, Jeff; Sharp, J.; Weigand, R.; Campo, D.; Hoeschele, G.; Parilla, Philip A.; Siegel, N. P.; Toberer, Eric S.; Ginley, David S.

    2017-06-27

    We are developing a novel concentrating solar electricity-generating technology that is both modular and dispatchable. Solar ThermoElectricity via Advanced Latent heat Storage (STEALS) uses concentrated solar flux to generate high-temperature thermal energy, which directly converts to electricity via thermoelectric generators (TEGs), stored within a phase-change material (PCM) for electricity generation at a later time, or both allowing for simultaneous charging of the PCM and electricity generation. STEALS has inherent features that drive its cost-competitive scale to be much smaller than current commercial concentrating solar power (CSP) plants. Most obvious is modularity of the solid-state TEG, which favors smaller scales in the kilowatt range as compared to CSP steam turbines, which are minimally 50 MWe for commercial power plants. Here, we present techno-economic and market analyses that show STEALS can be a cost-effective electricity-generating technology with particular appeal to small-scale microgrid applications. We evaluated levelized cost of energy (LCOE) for STEALS and for a comparable photovoltaic (PV) system with battery storage. For STEALS, we estimated capital costs and the LCOE as functions of the type of PCM including the use of recycled aluminum alloys, and evaluated the cost tradeoffs between plasma spray coatings and solution-based boron coatings that are applied to the wetted surfaces of the PCM subsystem. We developed a probabilistic cost model that accounts for uncertainties in the cost and performance inputs to the LCOE estimation. Our probabilistic model estimated LCOE for a 100-kWe STEALS system that had 5 hours of thermal storage and 8-10 hours of total daily power generation. For these cases, the solar multiple for the heliostat field varied between 1.12 and 1.5. We identified microgrids as a likely market for the STEALS system. We characterized microgrid markets in terms of nominal power, dispatchability, geographic location, and

  15. Solar thermoelectricity via advanced latent heat storage: A cost-effective small-scale CSP application

    Science.gov (United States)

    Glatzmaier, G. C.; Rea, J.; Olsen, M. L.; Oshman, C.; Hardin, C.; Alleman, J.; Sharp, J.; Weigand, R.; Campo, D.; Hoeschele, G.; Parilla, P. A.; Siegel, N. P.; Toberer, E. S.; Ginley, D. S.

    2017-06-01

    We are developing a novel concentrating solar electricity-generating technology that is both modular and dispatchable. Solar ThermoElectricity via Advanced Latent heat Storage (STEALS) uses concentrated solar flux to generate high-temperature thermal energy, which directly converts to electricity via thermoelectric generators (TEGs), stored within a phase-change material (PCM) for electricity generation at a later time, or both allowing for simultaneous charging of the PCM and electricity generation. STEALS has inherent features that drive its cost-competitive scale to be much smaller than current commercial concentrating solar power (CSP) plants. Most obvious is modularity of the solid-state TEG, which favors smaller scales in the kilowatt range as compared to CSP steam turbines, which are minimally 50 MWe for commercial power plants. Here, we present techno-economic and market analyses that show STEALS can be a cost-effective electricity-generating technology with particular appeal to small-scale microgrid applications. We evaluated levelized cost of energy (LCOE) for STEALS and for a comparable photovoltaic (PV) system with battery storage. For STEALS, we estimated capital costs and the LCOE as functions of the type of PCM including the use of recycled aluminum alloys, and evaluated the cost tradeoffs between plasma spray coatings and solution-based boron coatings that are applied to the wetted surfaces of the PCM subsystem. We developed a probabilistic cost model that accounts for uncertainties in the cost and performance inputs to the LCOE estimation. Our probabilistic model estimated LCOE for a 100-kWe STEALS system that had 5 hours of thermal storage and 8-10 hours of total daily power generation. For these cases, the solar multiple for the heliostat field varied between 1.12 and 1.5. We identified microgrids as a likely market for the STEALS system. We characterized microgrid markets in terms of nominal power, dispatchability, geographic location, and

  16. SequenceL: Automated Parallel Algorithms Derived from CSP-NT Computational Laws

    Science.gov (United States)

    Cooke, Daniel; Rushton, Nelson

    2013-01-01

    With the introduction of new parallel architectures like the cell and multicore chips from IBM, Intel, AMD, and ARM, as well as the petascale processing available for highend computing, a larger number of programmers will need to write parallel codes. Adding the parallel control structure to the sequence, selection, and iterative control constructs increases the complexity of code development, which often results in increased development costs and decreased reliability. SequenceL is a high-level programming language that is, a programming language that is closer to a human s way of thinking than to a machine s. Historically, high-level languages have resulted in decreased development costs and increased reliability, at the expense of performance. In recent applications at JSC and in industry, SequenceL has demonstrated the usual advantages of high-level programming in terms of low cost and high reliability. SequenceL programs, however, have run at speeds typically comparable with, and in many cases faster than, their counterparts written in C and C++ when run on single-core processors. Moreover, SequenceL is able to generate parallel executables automatically for multicore hardware, gaining parallel speedups without any extra effort from the programmer beyond what is required to write the sequen tial/singlecore code. A SequenceL-to-C++ translator has been developed that automatically renders readable multithreaded C++ from a combination of a SequenceL program and sample data input. The SequenceL language is based on two fundamental computational laws, Consume-Simplify- Produce (CSP) and Normalize-Trans - pose (NT), which enable it to automate the creation of parallel algorithms from high-level code that has no annotations of parallelism whatsoever. In our anecdotal experience, SequenceL development has been in every case less costly than development of the same algorithm in sequential (that is, single-core, single process) C or C++, and an order of magnitude less

  17. Contribution of proton linkage to the thermodynamic stability of the major cold-shock protein of Escherichia coli CspA.

    OpenAIRE

    Petrosian, S. A.; Makhatadze, G. I.

    2000-01-01

    The stability of protein is defined not only by the hydrogen bonding, hydrophobic effect, van der Waals interactions, and salt bridges. Additional, much more subtle contributions to protein stability can arise from surface residues that change their properties upon unfolding. The recombinant major cold shock protein of Escherichia coli CspA an all-beta protein unfolds reversible in a two-state manner, and behaves in all other respects as typical globular protein. However, the enthalpy of CspA...

  18. Development of a CSP plant energy yield calculation tool applying predictive models to analyze plant performance sensitivities

    Science.gov (United States)

    Haack, Lukas; Peniche, Ricardo; Sommer, Lutz; Kather, Alfons

    2017-06-01

    At early project stages, the main CSP plant design parameters such as turbine capacity, solar field size, and thermal storage capacity are varied during the techno-economic optimization to determine most suitable plant configurations. In general, a typical meteorological year with at least hourly time resolution is used to analyze each plant configuration. Different software tools are available to simulate the annual energy yield. Software tools offering a thermodynamic modeling approach of the power block and the CSP thermal cycle, such as EBSILONProfessional®, allow a flexible definition of plant topologies. In EBSILON, the thermodynamic equilibrium for each time step is calculated iteratively (quasi steady state), which requires approximately 45 minutes to process one year with hourly time resolution. For better presentation of gradients, 10 min time resolution is recommended, which increases processing time by a factor of 5. Therefore, analyzing a large number of plant sensitivities, as required during the techno-economic optimization procedure, the detailed thermodynamic simulation approach becomes impracticable. Suntrace has developed an in-house CSP-Simulation tool (CSPsim), based on EBSILON and applying predictive models, to approximate the CSP plant performance for central receiver and parabolic trough technology. CSPsim significantly increases the speed of energy yield calculations by factor ≥ 35 and has automated the simulation run of all predefined design configurations in sequential order during the optimization procedure. To develop the predictive models, multiple linear regression techniques and Design of Experiment methods are applied. The annual energy yield and derived LCOE calculated by the predictive model deviates less than ±1.5 % from the thermodynamic simulation in EBSILON and effectively identifies the optimal range of main design parameters for further, more specific analysis.

  19. Cognitive Dissonance Reduction as Constraint Satisfaction.

    Science.gov (United States)

    Shultz, Thomas R.; Lepper, Mark R.

    1996-01-01

    It is argued that the reduction of cognitive dissonance can be viewed as a constraint satisfaction problem, and a computational model of the process of consonance seeking is proposed. Simulations from this model matched psychological findings from the insufficient justification and free-choice paradigms of cognitive dissonance theory. (SLD)

  20. Cognitive Dissonance Reduction as Constraint Satisfaction.

    Science.gov (United States)

    Shultz, Thomas R.; Lepper, Mark R.

    1996-01-01

    It is argued that the reduction of cognitive dissonance can be viewed as a constraint satisfaction problem, and a computational model of the process of consonance seeking is proposed. Simulations from this model matched psychological findings from the insufficient justification and free-choice paradigms of cognitive dissonance theory. (SLD)

  1. The manifestation of job satisfaction in doctor-patient communication: a ten-country European study.

    NARCIS (Netherlands)

    Bensing, J.M.; Brink-Muinen, A. van den; Boerma, W.; Dulmen, S. van

    2013-01-01

    Objective: Job satisfaction is a common problem in modern western health care. While a lot of studies analyzed the determinants of job (dis)satisfaction, less is known about the consequences of doctors’ job satisfaction for medical visits. The aim of this study is to examine - female and male -

  2. Cold Shock Proteins: a Minireview with Special Emphasis on Csp-family of Enteropathogenic Yersinia

    Directory of Open Access Journals (Sweden)

    Riikka Keto-Timonen

    2016-07-01

    Full Text Available Bacteria have evolved a number of mechanisms for coping with stress and adapting to changing environmental conditions. Many bacteria produce small cold shock proteins (Csp as a response to rapid temperature downshift (cold shock. During cold shock, the cell membrane fluidity and enzyme activity decrease, and the efficiency of transcription and translation is reduced due to stabilization of nucleic acid secondary structures. Moreover, protein folding is inefficient and ribosome function is hampered. Csps are thought to counteract these harmful effects by serving as nucleic acid chaperons that may prevent the formation of secondary structures in mRNA at low temperature and thus facilitate the initiation of translation. However, some Csps are non-cold inducible and they are reported to be involved in various cellular processes to promote normal growth and stress adaptation responses. Csps have been shown to contribute to osmotic, oxidative, starvation, pH and ethanol stress tolerance as well as to host cell invasion. Therefore, Csps seem to have a wider role in stress tolerance of bacteria than previously assumed. Yersinia enterocolitica and Yersinia pseudotuberculosis are enteropathogens that can spread through foodstuffs and cause an enteric infection called yersiniosis. Enteropathogenic Yersinia are psychrotrophs that are able to grow at temperatures close to 0ºC and thus they set great challenges for the modern food industry. To be able to efficiently control psychrotrophic Yersinia during food production and storage, it is essential to understand the functions and roles of Csps in stress response of enteropathogenic Yersinia.

  3. Faculty Satisfaction in Academic Medicine.

    Science.gov (United States)

    Nyquist, Julie G.; Hitchcock, Maurice A.; Teherani, Arianne

    2000-01-01

    Describes the challenges and elements of satisfaction in academic medicine. Proposes a model of academic faculty satisfaction which postulates that organizational, job-related, and personal factors combine to develop self-knowledge, social knowledge, and satisfaction with outcomes of productivity, retention, and learner-patient satisfaction. (DB)

  4. ASD Customer Satisfaction Survey

    Data.gov (United States)

    Department of Veterans Affairs — ASD implemented a customer satisfaction survey for our products and services. This feedback will provide a better understanding of how ASD products and services can...

  5. Patient satisfaction constructs.

    Science.gov (United States)

    Rahman, Muhammad Sabbir; Osmangani, Aahad M

    2015-01-01

    The purpose of this paper is to examine the five-factor structure of patients' satisfaction constructs toward private healthcare service providers. This research is a cross-sectional study. A questionnaire-based survey was conducted with previous and current Bangladeshi patients. Exploratory factor analysis was employed to extract the underlying constructs. Five underlying dimensions that play a significant role in structuring the satisfaction perceived by Bangladeshi private healthcare patients are identified in this study. Practical implications - The main contribution of this study is identifying the dimensions of satisfaction perceived by Bangladeshi patients regarding private healthcare service providers. Healthcare managers adopt the five identified underlying construct items in their business practices to improve their respective healthcare efficiency while ensuring overall customer satisfaction.

  6. Applicant Satisfaction Survey

    Data.gov (United States)

    Office of Personnel Management — The Chief Human Capital Officers developed 3 surveys that asks applicants to assess their satisfaction with the application process on a 1-10 point scale, with 10...

  7. Homeopathy satisfaction in Iran

    OpenAIRE

    Mahmoudian, Ahmad; Sadri, Gholamhosein

    2014-01-01

    Background: Patient satisfaction is a key indicator of the quality and effectiveness of a therapeutic method. Assessing the satisfaction of patients undergoing homeopathic therapy is essential in the early steps of educating the community, if suitable outcomes are to be achieved. Materials and Methods: This descriptive cross-sectional study was conducted in 2008 on 125 patients from the city of Isfahan. Patients aged above 15 years who had referred to the homeopathic practitioners and receive...

  8. Both the caspase CSP-1 and a caspase-independent pathway promote programmed cell death in parallel to the canonical pathway for apoptosis in Caenorhabditis elegans.

    Directory of Open Access Journals (Sweden)

    Daniel P Denning

    Full Text Available Caspases are cysteine proteases that can drive apoptosis in metazoans and have critical functions in the elimination of cells during development, the maintenance of tissue homeostasis, and responses to cellular damage. Although a growing body of research suggests that programmed cell death can occur in the absence of caspases, mammalian studies of caspase-independent apoptosis are confounded by the existence of at least seven caspase homologs that can function redundantly to promote cell death. Caspase-independent programmed cell death is also thought to occur in the invertebrate nematode Caenorhabditis elegans. The C. elegans genome contains four caspase genes (ced-3, csp-1, csp-2, and csp-3, of which only ced-3 has been demonstrated to promote apoptosis. Here, we show that CSP-1 is a pro-apoptotic caspase that promotes programmed cell death in a subset of cells fated to die during C. elegans embryogenesis. csp-1 is expressed robustly in late pachytene nuclei of the germline and is required maternally for its role in embryonic programmed cell deaths. Unlike CED-3, CSP-1 is not regulated by the APAF-1 homolog CED-4 or the BCL-2 homolog CED-9, revealing that csp-1 functions independently of the canonical genetic pathway for apoptosis. Previously we demonstrated that embryos lacking all four caspases can eliminate cells through an extrusion mechanism and that these cells are apoptotic. Extruded cells differ from cells that normally undergo programmed cell death not only by being extruded but also by not being engulfed by neighboring cells. In this study, we identify in csp-3; csp-1; csp-2 ced-3 quadruple mutants apoptotic cell corpses that fully resemble wild-type cell corpses: these caspase-deficient cell corpses are morphologically apoptotic, are not extruded, and are internalized by engulfing cells. We conclude that both caspase-dependent and caspase-independent pathways promote apoptotic programmed cell death and the phagocytosis of cell

  9. Customer satisfaction and business excellence

    DEFF Research Database (Denmark)

    Kristensen, Kai; Martensen, Anne; Grønholdt, Lars

    , customer loyalty and performance, and optimal customer satisfaction is characterized which will help management choose the right quality parameters for improvement. Second, the paper describes empirical evidence that customer satisfaction measures, based on a modelling approach, have impact on economic......The topic for this paper is the link between customer satisfaction and business performance, which makes it possible to use customer satisfaction measures as basis for creating business excellence. First, the paper presents microeconomic models for the relationship between customer satisfaction...

  10. Customer satisfaction and business excellence

    DEFF Research Database (Denmark)

    Kristensen, Kai; Martensen, Anne; Grønholdt, Lars

    The topic for this paper is the link between customer satisfaction and business performance, which makes it possible to use customer satisfaction measures as basis for creating business excellence. First, the paper presents microeconomic models for the relationship between customer satisfaction......, customer loyalty and performance, and optimal customer satisfaction is characterized which will help management choose the right quality parameters for improvement. Second, the paper describes empirical evidence that customer satisfaction measures, based on a modelling approach, have impact on economic...

  11. Workforce issues and consumer satisfaction in Medicaid personal assistance services.

    Science.gov (United States)

    Anderson, Wayne L; Wiener, Joshua M; Khatutsky, Galina

    2006-01-01

    This study used a survey of older people and younger persons with disabilities who were receiving Medicaid-financed home and community-based services (HCBS) to assess the effect of workforce issues on consumer satisfaction. We found that recruitment problems had very strong negative and significant effects on consumer satisfaction. An interruption in service was a more important and significant indicator of consumer dissatisfaction than not having the same worker over time. We also found that problems with worker training and respect and treatment of consumers strongly and significantly affected satisfaction with paid care. Efforts to improve workforce issues are needed to improve the quality of care of these services.

  12. Nurses' Job satisfaction: an Italian study.

    Science.gov (United States)

    Sansoni, J; De Caro, W; Marucci, A R; Sorrentino, M; Mayner, L; Lancia, L

    2016-01-01

    The aim of the work presented was to assess job satisfaction of a number of nurses from different departments working in public hospitals in Italy. The assessment was carried out through the combined use of questionnaires, which measured different aspects of job satisfaction, such as coping abilities, stress level and optimism/pessimism. The literature supports the fact that nurses' job dissatisfaction is closely connected with high levels of stress, burnout and physical and mental exhaustion, together with high workload levels and the complexity of care. The growing interest in measuring the levels of nurses' job satisfaction is attributable to a number of problems that have been raised worldwide, two of which are becoming ever so important: turnover and shortage of nurses. The research question is: Which are the main motivating factors of Italian nurses' job satisfaction/dissatisfaction? The study used a convenience (non probability) sample of 1,304 nurses from 15 different wards working in Italian public hospitals from a number of cities in northern, central and southern Italy. The survey instrument was a questionnaire consisting of 205 items which included 5 different questionnaires combined together. The results show a low level of job satisfaction (IWS= 11.5, JSS=126.4). However, the participants were overall happy about their job and considered autonomy and salary important factors for job satisfaction. Research has shown that the nurses' level of satisfaction in Italian hospitals is low. The results revealed dissatisfaction with task requirements, organizational policies and advance in career. Nurses interviewed did not feel stressed and showed to be optimistic overall. New research on the subject should be conducted by focusing on ward differences, North and South of Italy and on gender differences.

  13. FACTORS AFFECTING EMPLOYEE JOB SATISFACTION OF PHARMACEUTICAL SECTOR

    Directory of Open Access Journals (Sweden)

    Mosammod Mahamuda Parvin

    2011-10-01

    Full Text Available The Pharmaceutical sector plays a vital role in underpinning the economic development of a country. This study attempts to evaluate job satisfaction of employees in different pharmaceutical companies. It focuses on the relative importance of job satisfaction factors and their impacts on the overall job satisfaction of employees. It also investigates the impacts of pharmaceutical type, work experience, age, and sex differences on the attitudes toward job Satisfaction. The result shows that salary, efficiency in work, fringe supervision, and co-worker relation are the most important factors contributing to job satisfaction. The overall job satisfaction of the employees in pharmaceutical sector is at the positive level. The nature of business operation, the work culture and the level of job satisfaction have undergone sea change for the pharmaceutical companies. As a business proposition initiated huge investment whereas majority of their stocks is going down bringing a high level of apprehension related to job security among its employees. This research paper highlights some of these problems and presents a picture of level of job satisfaction among employees of pharmaceutical companies. It also identifies unique issues of job satisfaction in the companies. Pharmaceuticals Companies are selected for the research because they are currently undergoing continued expansion. In order to gain competitive advantage and adapt to the dramatic changing environment, it is important for them to achieve management efficiency by increasing employee satisfaction in the organisation. Hence this research was mainly undertaken to investigate on the significance of factors such as working conditions, pay and promotion, job security, fairness, relationship with co-workers and supervisors in affecting the job satisfaction. This paper presents a comprehensive diagnosis of job satisfaction indices of pharmaceutical business, the factors causing the dissatisfaction

  14. Determination of selenium content in different types of seed oils by cathodic stripping potentiometry (CSP).

    Science.gov (United States)

    Dugo, Giacomo; La Pera, Lara; Pollicino, Donatella; Saitta, Marcello

    2003-09-10

    Seed oils are consumed worldwide; moreover, they are used in the alimentary, cosmetic, pharmaceutical, and chemical industries. Due to their diffusion, it is interesting to investigate the presence of important micronutrients such as selenium in seed oils. The aim of this work was to develop a rapid, precise, and sensitive cathodic stripping potentiometry (CSP) method to determine the concentration of selenium in different types of seed oils. Selenium was extracted from the oily matrix by concentrated hydrochloric acid treatment at 90 degrees C. The analysis was executed by applying an electrolysis potential of -150 mV for 60 s and a constant current of -30 microA. Under these conditions, detection limits of <0.5 ng g(-1) were obtained. The method reproducibility (expressed as total RSD %) spanned from 0.2 to 0.8%. Recoveries ranged from 92.1 to 97.5%, providing evidence that selenium quantification remained unaffected by the extraction procedure described. The results obtained with the proposed method were compared with those obtained via graphite furnace atomic absorption spectroscopy (GFAAS), a common method for determining selenium. The results of the two methods agreed within 93.5-107.7%. The mean amounts of selenium found were 313.0 +/- 2.0, 458.3 +/- 1.3, 224.6 +/- 0.9, 99.5 +/- 0.8, 332.2 +/- 0.5, 144.0 +/- 0.7, and 295.5 +/- 1.2 ng g(-1), respectively, in peanut, soybean, sunflower, rice, corn, grapestone, and seed oils.

  15. Thermochemical storage for CSP via redox structured reactors/heat exchangers: The RESTRUCTURE project

    Science.gov (United States)

    Karagiannakis, George; Pagkoura, Chrysoula; Konstandopoulos, Athanasios G.; Tescari, Stefania; Singh, Abhishek; Roeb, Martin; Lange, Matthias; Marcher, Johnny; Jové, Aleix; Prieto, Cristina; Rattenbury, Michael; Chasiotis, Andreas

    2017-06-01

    The present work provides an overview of activities performed in the framework of the EU-funded collaborative project RESTRUCTURE, the main goal of which was to develop and validate a compact structured reactor/heat exchanger for thermochemical storage driven by 2-step high temperature redox metal oxide cycles. The starting point of development path included redox materials qualification via both theoretical and lab-scale experimental studies. Most favorable compositions were cobalt oxide/alumina composites. Preparation of small-scale structured bodies included various approaches, ranging from perforated pellets to more sophisticated honeycomb geometries, fabricated by extrusion and coating. Proof-of-concept of the proposed novel reactor/heat exchanger was successfully validated in small-scale structures and the next step included scaling up of redox honeycombs production. Significant challenges were identified for the case of extruded full-size bodies and the final qualified approach related to preparation of cordierite substrates coated with cobalt oxide. The successful experimental evaluation of the pilot reactor/heat exchanger system constructed motivated the preliminary techno-economic evaluation of the proposed novel thermochemical energy storage concept. Taking into account experimental results, available technologies and standard design aspects a model for a 70.5 MWe CSP plant was defined. Estimated LCOE costs were calculated to be in the range of reference values for Combined Cycle Power Plants operated by natural gas. One of main cost contributors was the storage system itself, partially due to relatively high cost of cobalt oxide. This highlighted the need to identify less costly and equally efficient to cobalt oxide redox materials.

  16. Employee satisfaction and employee retention: catalysts to patient satisfaction.

    Science.gov (United States)

    Collins, Kevin S; Collins, Sandra K; McKinnies, Richard; Jensen, Steven

    2008-01-01

    Over the last few years, most health care facilities have become intensely aware of the need to increase patient satisfaction. However, with today's more consumer-driven market, this can be a daunting task for even the most experienced health care manager. Recent studies indicate that focusing on employee satisfaction and subsequent employee retention may be strong catalysts to patient satisfaction. This study offers a review of how employee satisfaction and retention correlate with patient satisfaction and also examines the current ways health care organizations are focusing on employee satisfaction and retention.

  17. Iridium complexes containing mesoionic C donors: selective C(sp3)-H versus C(sp2)-H bond activation, reactivity towards acids and bases, and catalytic oxidation of silanes and water.

    Science.gov (United States)

    Petronilho, Ana; Woods, James A; Mueller-Bunz, Helge; Bernhard, Stefan; Albrecht, Martin

    2014-11-24

    Metalation of a C2-methylated pyridylimidazolium salt with [IrCp*Cl2]2 affords either an ylidic complex, resulting from C(sp(3))-H bond activation of the C2-bound CH3 group if the metalation is performed in the presence of a base, such as AgO2 or Na2CO3, or a mesoionic complex via cyclometalation and thermally induced heterocyclic C(sp(2))-H bond activation, if the reaction is performed in the absence of a base. Similar cyclometalation and complex formation via C(sp(2))-H bond activation is observed when the heterocyclic ligand precursor consists of the analogous pyridyltriazolium salt, that is, when the metal bonding at the C2 position is blocked by a nitrogen rather than a methyl substituent. Despite the strongly mesoionic character of both the imidazolylidene and the triazolylidene, the former reacts rapidly with D(+) and undergoes isotope exchange at the heterocyclic C5 position, whereas the triazolylidene ligand is stable and only undergoes H/D exchange under basic conditions, where the imidazolylidene is essentially unreactive. The high stability of the Ir-C bond in aqueous solution over a broad pH range was exploited in catalytic water oxidation and silane oxidation. The catalytic hydrosilylation of ketones proceeds with turnover frequencies as high as 6,000 h(-1) with both the imidazolylidene and the triazolylidene system, whereas water oxidation is enhanced by the stronger donor properties of the imidazol-4-ylidene ligands and is more than three times faster than with the triazolylidene analogue. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  18. [Job satisfaction among Norwegian doctors].

    Science.gov (United States)

    Nylenna, Magne; Aasland, Olaf Gjerløw

    2010-05-20

    Doctors' job satisfaction has been discussed internationally in recent years based on reports of increasing professional dissatisfaction. We have studied Norwegian doctors' job satisfaction and their general satisfaction with life. A survey was conducted among a representative sample of practicing Norwegian doctors in 2008. The validated 10-item Job Satisfaction Scale was used to assess job satisfaction. 1,072 (65 %) doctors responded. They reported a mean job satisfaction of 5.3 on a scale from 1 (very dissatisfied) to 7 (very satisfied). Job satisfaction increased with increasing age. Private practice specialists reported the highest level of job satisfaction (5.8), and general practitioners reported higher job satisfaction (5.5) than hospital doctors (5.1). Among specialty groups, community doctors scored highest (5.6) and doctors in surgical disciplines lowest (5.0). While long working hours was negatively correlated with job satisfaction, the perception of being professionally updated and having part-time affiliation(s) in addition to a regular job were positively correlated with job satisfaction. 52.9 % of doctors reported a very high general satisfaction. Norwegian doctors have a high level of job satisfaction. Satisfaction with life in general is also high and at least in line with that in the Norwegian population.

  19. Tournament Satisfaction Scale (TOSS

    Directory of Open Access Journals (Sweden)

    Kubilay Öcal

    2016-04-01

    Full Text Available Increasing in the popularity of regional sport tourism addresses the consumers to measure satisfaction of participants in order to provide high quality product or services. The literature declares the strong need of a reliable and valid scale in the area of sport tourism. For that purpose this paper describes the process of developing Tournament Satisfaction Scale (TOSS that can be used to asses athletes’ perception of satisfaction through sport tournaments. An item pool with 33 items was developed by literature reviews and interviews with experts in the area of sport tourism, sport management and coaching. Exploratory Factor Analysis with Maximum Likelihood extraction method and oblique rotation (direct oblimin was carried out by using the data obtained from 278 athletes in various sport branches participated in a tournament as a regional sport tourist. Exploratory Factor Analysis results yielded one factor with 22 items over .50 factor loading. The 22-item TOSS was found to explain 40.3% of the variance in tournament satisfaction. Cronbach alpha coefficient is 0.93 for TOSS indicating satisfactory reliability evidence. Overall, it can be concluded that the scale is reliable and valid tool for evaluating tournament satisfaction from the perceptions of athletes. In this way coaches, team managers, and tournament organizers would possible to obtain important clues about their performances.

  20. Evaluation of Patient Satisfaction

    Directory of Open Access Journals (Sweden)

    Ioana GĂDĂLEAN

    2011-12-01

    Full Text Available Introduction: Patient satisfaction is an element of psychological health which influence the results of the medical care and their impact. Patient experience can be quantified from their questioning or direct observation. Objectives: The purpose of this paper is to analyze and evaluate the satisfaction of nursing activities closely related to the patients admitted in ICU ward Institute of Oncology Prof. Dr. Ion Chiricuţă Cluj-Napoca. Materials and Methods: This paper describes a prospective study conducted on a sample of 106 patients hospitalized in the intensive care unit of the Institute of Oncology Prof. Dr. Ion Chiricuţă Cluj-Napoca in June 2011 - August 2011. The results were obtained using descriptive and analytical statistical technique of SPSS software. To detect relationships / associations between qualitative variables the Chi-Square test was used (statistically significant association if p ≤ 0.05. Patients received an anonymous questionnaire applied at 24 hours after discharge from the IT department so that the responses would be most sincerely. Results: Patients selected only two degrees of satisfaction, 53.8% very satisfied, respectively 46.2% satisfied. Dissatisfaction factors that may affect satisfaction were communication, accommodation facilities, factors arising from the lack of personal, pain and lack of sleep. Conclusions: Satisfaction “score” is influenced by education level and diagnosis. Resumption of the questionnaire is required periodically to assess the results of our section. It is also necessary to continue to compare results with other departments in the country.

  1. Parent Training to Reduce Problem Behaviors over the Transition to High School: Tests of Indirect Effects through Improved Emotion Regulation Skills.

    Science.gov (United States)

    Mason, W Alex; January, Stacy-Ann A; Fleming, Charles B; Thompson, Ronald W; Parra, Gilbert R; Haggerty, Kevin P; Snyder, James J

    2016-02-01

    Adolescent problem behaviors are costly for individuals and society. Promoting the self-regulatory functioning of youth may help prevent the development of such behaviors. Parent-training and family intervention programs have been shown to improve child and adolescent self-regulation. This study helps fill gaps in knowledge by testing for indirect effects of the Common Sense Parenting(®) (CSP) program on reduced substance use, conduct problems, and school suspensions through previously identified short-term improvements in parents' reports of their children's emotion regulation skills. Over two cohorts, 321 low income families of 8(th) graders were enrolled and randomly assigned to either the standard CSP program, an adapted CSP Plus program, or a minimal-contact control condition. Pretest, posttest, 1-year follow-up, and 2-year follow-up survey assessments were completed by parents and students with 94% retention. Intent-to-treat multivariate path analyses were conducted. Neither intervention had statistically significant total effects on the three targeted adolescent outcomes. CSP, but not CSP Plus, had statistically significant indirect effects on reduced substance use and school suspensions at the 1-year follow-up as well as conduct problems and school suspensions at the 2-year follow-up through increased child emotion regulation skills at posttest. Findings provide some support for emotion regulation as one pathway through which the intervention was associated, indirectly, with reduced substance use, conduct problems, and school suspensions among at-risk students over the high school transition.

  2. Optimizing the CSP Tower Air Brayton Cycle System to Meet the SunShot Objectives - Final Technical Report

    Energy Technology Data Exchange (ETDEWEB)

    Bryner, Elliott [Soutwest Research Inst., San Antonio, TX (United States); Brun, Klaus [Soutwest Research Inst., San Antonio, TX (United States); Coogan, Shane [Soutwest Research Inst., San Antonio, TX (United States); Cunningham, C. Seth [Soutwest Research Inst., San Antonio, TX (United States); Poerner, Nathan [Soutwest Research Inst., San Antonio, TX (United States)

    2016-02-26

    The objective of this project is to increase Concentrated Solar Power (CSP) tower air receiver and gas turbine temperature capabilities to 1,000ºC by the development of a novel gas turbine combustor, which can be integrated on a megawatt-scale gas turbine, such as the Solar Turbines Mercury 50™. No combustor technology currently available is compatible with the CSP application target inlet air temperature of 1,000°C. Autoignition and flashback at this temperature prevent the use of conventional lean pre-mix injectors that are currently employed to manage NOx emissions. Additional challenges are introduced by the variability of the high-temperature heat source provided by the field of solar collectors, the heliostat in CSP plants. For optimum energy generation from the power turbine, the turbine rotor inlet temperature (TRIT) should remain constant. As a result of changing heat load provided to the solar collector from the heliostat, the amount of energy input required from the combustion system must be adjusted to compensate. A novel multi-bank lean micro-mix injector has been designed and built to address the challenges of high-temperature combustion found in CSP applications. The multi-bank arrangement of the micro-mix injector selectively injects fuel to meet the heat addition requirements to maintain constant TRIT with changing solar load. To validate the design, operation, and performance of the multi-bank lean micro-mix injector, a novel combustion test facility has been designed and built at Southwest Research Institute® (SwRI®) in San Antonio, TX. This facility, located in the Turbomachinery Research Facility, provides in excess of two kilograms per second of compressed air at nearly eight bar pressure. A two-megawatt electric heater raises the inlet temperature to 800°C while a secondary gas-fired heater extends the operational temperature range of the facility to 1,000°C. A combustor test rig connected to the heater has been designed and built to

  3. LCA (Life Cycle Assessment) of Parabolic Trough CSP: Materials Inventory and Embodied GHG Emissions from Two-Tank Indirect and Thermocline Thermal Storage (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Heath, G.; Burkhardt, J.; Turchi, C.; Decker, T.; Kutscher, C.

    2009-07-20

    In the United States, concentrating solar power (CSP) is one of the most promising renewable energy (RE) technologies for reduction of electric sector greenhouse gas (GHG) emissions and for rapid capacity expansion. It is also one of the most price-competitive RE technologies, thanks in large measure to decades of field experience and consistent improvements in design. One of the key design features that makes CSP more attractive than many other RE technologies, like solar photovoltaics and wind, is the potential for including relatively low-cost and efficient thermal energy storage (TES), which can smooth the daily fluctuation of electricity production and extend its duration into the evening peak hours or longer. Because operational environmental burdens are typically small for RE technologies, life cycle assessment (LCA) is recognized as the most appropriate analytical approach for determining their environmental impacts of these technologies, including CSP. An LCA accounts for impacts from all stages in the development, operation, and decommissioning of a CSP plant, including such upstream stages as the extraction of raw materials used in system components, manufacturing of those components, and construction of the plant. The National Renewable Energy Laboratory (NREL) is undertaking an LCA of modern CSP plants, starting with those of parabolic trough design.

  4. Contribution of proton linkage to the thermodynamic stability of the major cold-shock protein of Escherichia coli CspA.

    Science.gov (United States)

    Petrosian, S A; Makhatadze, G I

    2000-02-01

    The stability of protein is defined not only by the hydrogen bonding, hydrophobic effect, van der Waals interactions, and salt bridges. Additional, much more subtle contributions to protein stability can arise from surface residues that change their properties upon unfolding. The recombinant major cold shock protein of Escherichia coli CspA an all-beta protein unfolds reversible in a two-state manner, and behaves in all other respects as typical globular protein. However, the enthalpy of CspA unfolding strongly depends on the pH and buffer composition. Detailed analysis of the unfolding enthalpies as a function of pH and buffers with different heats of ionization shows that CspA unfolding in the pH range 5.5-9.0 is linked to protonation of an amino group. This amino group appears to be the N-terminal alpha-amino group of the CspA molecule. It undergoes a 1.6 U shift in pKa values between native and unfolded states. Although this shift in pKa is expected to contribute approximately 5 kJ/mol to CspA stabilization energy the experimentally observed stabilization is only approximately 1 kJ/mol. This discrepancy is related to a strong enthalpy-entropy compensation due, most likely, to the differences in hydration of the protonated and deprotonated forms of the alpha-amino group.

  5. Customer satisfaction and competencies

    DEFF Research Database (Denmark)

    Gritti, Paola; Foss, Nicolai Juul

    this by analyzing data collected on 2,105 customers of 118 branches of one of the biggest banks of an Italian banking group. We find that customer satisfaction impacts loyalty, which in turn has a direct effect on financial and non-financial customer value/total customer value/complex customer value. Moreover......, loyalty is a mediator between financial and not-financial customer value and two sources of customer satisfaction, namely relationships with the front office and the branch, on the one hand, and the products offered, on the other.......We empirically address how customer satisfaction and loyalty in the banking industry may affect profitability. This helps to identify the strategy and competencies necessary to benefit from customer relationships which are important sources for improved performance in the banking. We do...

  6. Occupant Experiences and Satisfaction with New Low-Energy Houses

    DEFF Research Database (Denmark)

    Knudsen, Henrik Nellemose; Thomsen, Kirsten Engelund; Mørck, Ove

    2013-01-01

    The development and the erection of low-energy buildings have been intensified in recent years. Still, there are only few studies on occupant experiences and satisfaction of living in low-energy houses. A questionnaire survey was therefore carried out in the autumn 2011 among occupants of low......-energy houses that meet the future lower energy requirements of the planned Danish Building Regulations 2015. The purpose was to study experiences and satisfaction among occupants living in new low-energy houses. It included i.a. overall satisfaction, perceived indoor climate and experiences and satisfaction...... with technical installations for heating and ventilation, the ability of regulating the indoor climate, the availability and quality of information and the experienced heat consumption. The survey showed an overall satisfaction with new low-energy houses, but also that there were problems that should...

  7. Keeping the customer satisfied: issues in the interpretation and use of patient satisfaction surveys.

    Science.gov (United States)

    Scott, A; Smith, R D

    1994-12-01

    Patient satisfaction and customer focus are increasingly important objectives set for health services. The patient satisfaction survey is becoming the main method of assessing this aspect of health care. In competitive environments, those institutions that show that they respond to consumers' needs are in a better position to attract funding. The use of patient satisfaction surveys in quality assurance-type activities is also increasing. In these contexts, however, the way in which patient satisfaction surveys should be interpreted and used to maximise the satisfaction of patients has received little critical attention. Problems in interpreting the results of satisfaction surveys arise from the weak conceptual foundation of patient satisfaction, which has been well documented in the literature. The objective of this paper is to show that using current formulations of patient satisfaction surveys in quality assurance-type activities and competitive environments may not lead to the maximisation of patients' satisfaction with health services. If the satisfaction of patients is to be maximised then it is necessary to extend the current conceptual basis of patient satisfaction to recognise explicitly the decision-making contexts in which the results will be used. This paper identifies the manner by which this extension should occur by considering some of the problems and pitfalls of interpreting and using the results of surveys to maximise patients' satisfaction.

  8. Life satisfaction decreases during adolescence.

    Science.gov (United States)

    Goldbeck, Lutz; Schmitz, Tim G; Besier, Tanja; Herschbach, Peter; Henrich, Gerhard

    2007-08-01

    Adolescence is a developmental phase associated with significant somatic and psychosocial changes. So far there are few studies on developmental aspects of life satisfaction. This cross-sectional study examines the effects of age and gender on adolescent's life satisfaction. 1,274 German adolescents (aged 11-16 years) participated in a school-based survey study. They completed the adolescent version of the Questions on Life Satisfaction (FLZ(M) - Fragen zur Lebenszufriedenheit), a multidimensional instrument measuring the subjective importance and satisfaction with eight domains of general and eight domains of health-related life satisfaction. Effects of gender and age were analysed using ANOVAs. Girls reported significantly lower general (F = 5.0; p = .025) and health-related life satisfaction (F = 25.3; p life domains, there was a significant decrease in general (F = 14.8; p life satisfaction (F = 8.0; p Satisfaction with friends remained on a high level, whereas satisfaction with family relations decreased. Only satisfaction with partnership/sexuality increased slightly, however this effect cannot compensate the general loss of satisfaction. Decreasing life satisfaction has to be considered as a developmental phenomenon. Associations with the increasing prevalence of depression and suicidal ideation during adolescence are discussed. Life satisfaction should be considered a relevant aspect of adolescent's well-being and functioning.

  9. Customer satisfaction and competencies

    DEFF Research Database (Denmark)

    Gritti, Paola; Foss, Nicolai Juul

    this by analyzing data collected on 2,105 customers of 118 branches of one of the biggest banks of an Italian banking group. We find that customer satisfaction impacts loyalty, which in turn has a direct effect on financial and non-financial customer value/total customer value/complex customer value. Moreover......We empirically address how customer satisfaction and loyalty in the banking industry may affect profitability. This helps to identify the strategy and competencies necessary to benefit from customer relationships which are important sources for improved performance in the banking. We do...

  10. Adults and Children with Asperger Syndrome: Exploring Adult Attachment Style, Marital Satisfaction and Satisfaction with Parenthood

    Science.gov (United States)

    Lau, Winnie; Peterson, Candida C.

    2011-01-01

    Asperger syndrome (AS) is a disorder resembling autism in its problems with social interaction and cognitive flexibility. Today, a number of adults with AS marry and rear children. Yet there has been little research into the quality of their marital and parental relationships. This study explored romantic attachment style, marital satisfaction and…

  11. Job satisfaction and basic vital needs satisfaction among working women

    National Research Council Canada - National Science Library

    Kalva, I; Shiryayev, D

    2016-01-01

    ... is to investigate the level of job satisfaction and its relation with satisfaction of basic vital needs (according to Maslows needs pyramid) in working women single and married. A positive correlation was found between the level of job satisfaction and the level of satised material needs and security needs in working women. Some differences were found betw...

  12. International Students' Satisfaction: Assessing the Determinants of Satisfaction

    Science.gov (United States)

    Asare-Nuamah, Peter

    2017-01-01

    Studies have shown that students' satisfaction is an important element that should be given much attention by educators in their policymaking. Students' satisfaction has impact on retention and financial capacity of institutions. With the objective of assessing the factors affecting international students' satisfaction, a descriptive research was…

  13. Proposal of a new parameter for the comprehensive qualification of solar mirrors for CSP applications

    Science.gov (United States)

    Montecchi, Marco

    2016-05-01

    Hemispherical and near-specular solar reflectance are today the main parameters used in solar mirror characterization. Unfortunately they can not properly describe the mirror effectiveness in redirecting the Sun radiation towards a receiver in CSP applications because the reflectance concept is developed by assuming the impinging radiation travelling as a plane wave, like that emitted by an infinitely far point light source. Besides that, the measurement of the near-specular reflectance is so much difficult that slowed down the progress of the SolarPACES reflectance guidelines, still stopped at the 2013 version. The present paper launches a new idea in the ongoing discussion on solar-mirror qualification to work around these difficulties: solar mirrors could be better characterised by the new parameter named Sun Conic Reflectance (SRC), which represents the amount of solar radiation reflected at a point of the mirror, and intercepted by the receiver with acceptance-angle 2φR. The standard measurement of SCR requires the setting of two conditions about the solar radiation: spectrum and divergence. The first is ASTM G173-03, for the second here was chosen that of a perfect clear-sky day, when the Sun-disk surface is uniformly radiating, and viewed from the Earth under 9.46 mrad, but any other could be chosen if it can experimentally implementable. For φ < 4.73 = 9.46/2 mrad, SCR and near-specular solar reflectance behave very differently, because the first represents the solar radiation intercepted by the receiver, while the second refers to the reflection of impinging plane-waves, with solar spectrum, towards directions deviating from the specular one of less than φ. When φ ≥ 4.73 mrad, the difference is much lower, and becomes null when φ is large enough. The second advantage of SCR is that it can be directly measured by means a simple experimental set-up which schema is shown and discussed in the paper. The formulae for computing SCR from near

  14. A numerical study on high-pressure water-spray cleaning for CSP reflectors

    Science.gov (United States)

    Anglani, Francesco; Barry, John; Dekkers, Willem

    2016-05-01

    Mirror cleaning for concentrated solar thermal (CST) systems is an important aspect of operation and maintenance (O&M), which affects solar field efficiency. The cleaning process involves soil removal by erosion, resulting from droplet impingement on the surface. Several studies have been conducted on dust accumulation and CSP plant reflectivity restoration, demonstrating that parameters such as nozzle diameter, jet impingement angle, interaxial distance between nozzles, standoff distance, water velocity, nozzle pressure and others factors influence the extent of reflectance restoration. In this paper we aim at identifying optimized cleaning strategies suitable for CST plants, able to restore mirror reflectance by high-pressure water-spray systems through the enhancement of shear stress over reflectors' surface. In order to evaluate the forces generated by water-spray jet impingement during the cleaning process, fluid dynamics simulations have been undertaken with ANSYS CFX software. In this analysis, shear forces represent the "critical phenomena" within the soil removal process. Enhancing shear forces on a particular area of the target surface, varying the angle of impingement in combination with the variation of standoff distances, and managing the interaxial distance of nozzles can increase cleaning efficiency. This procedure intends to improve the cleaning operation for CST mirrors reducing spotted surface and increasing particles removal efficiency. However, turbulence developed by adjacent flows decrease the shear stress generated on the reflectors surface. The presence of turbulence is identified by the formation of "fountain regions" which are mostly responsible of cleaning inefficiency. By numerical analysis using ANSYS CFX, we have modelled a stationary water-spray system with an array of three nozzles in line, with two angles of impingement: θ = 90° and θ = 75°. Several numerical tests have been carried out, varying the interaxial distance of

  15. Apparent shortening of the Csp(3)-Csp(3)bond analysed via a variable-temperature X-ray diffraction study in racemic 1,1'-binaphthalene-2,2'-diyl diethyl bis(carbonate).

    Science.gov (United States)

    Nayak, Susanta K; Chandrasekhar, S; Guru Row, T N

    2009-05-01

    Crystal structure determination at room temperature [292 (2) K] of racemic 1,1'-binaphthalene-2,2'-diyl diethyl bis(carbonate), C(26)H(22)O(6), showed that one of the terminal carbon-carbon bond lengths is very short [Csp(3)-Csp(3) = 1.327 (6) A]. The reason for such a short bond length has been analysed by collecting data sets on the same crystal at 393, 150 and 90 K. The values of the corrected bond lengths clearly suggest that the shortening is mainly due to positional disorder at two sites, with minor perturbations arising as a result of thermal vibrations. The positional disorder has been resolved in the analysis of the 90 K data following the changes in the unit-cell parameters for the data sets at 150 and 90 K, which appear to be an artifact of a near centre of symmetry relationship between the two independent molecules in the space group P1 at these temperatures. Indeed, the unit cell at low temperature (150 and 90 K) is a supercell of the room-temperature unit cell.

  16. Customer Satisfaction Survey for Raumacell

    OpenAIRE

    Haapala, Henri

    2017-01-01

    This bachelor’s thesis was conducted as a customer satisfaction survey for UPM RaumaCell. The aim and purpose of the project was to find the current customer satisfaction level of UPM RaumaCell. Theoretical part of the thesis was gathered from different types of business literature and some statistical literature was also used. Customer satisfaction was defined as a term and its importance was researched as was how to measure it. Customer satisfaction surveys were thoroughly explained and...

  17. Personal Characteristics Affecting Agricultural Extension Workers' Job Satisfaction Level

    Directory of Open Access Journals (Sweden)

    Ali Asadi

    2008-01-01

    Full Text Available Problem Statement: One of the closely associated concepts with performance of an organization is job satisfaction. The purpose of this study was to investigate the relationship between personal characteristics and job satisfaction. Approach: A survey of 52 extension workers was conducted in Fars Province, southern Iran. To collect data, a questionnaire including Bray field and Rothe Job Satisfaction Index was used. Results: The study found that the majority of the extension workers (65.5% belonged to intermediate level of job satisfaction, followed by 29.1 and 5.5% belonging to high and low level of job satisfaction, respectively. Regression results also indicated that the full model was moderately successful, explaining 45% of the variances in the job satisfaction. Two independent variables that accounted for the explained variances were monthly salary (27% and marital status (18%. Conclusions/Recommendations: Administration should conduct a periodic needs assessment to determine the level of job satisfaction of personnel and identify methods for increasing satisfaction based on these findings.

  18. Mechanism of the CSP-CFP Relationship:An Empirical Study Based on Stakeholder%CSP-CFP 的作用机制:基于利益相关者的实证研究

    Institute of Scientific and Technical Information of China (English)

    魏如清; 唐方成

    2013-01-01

    基于利益相关者视角,引入社会资本的概念,深入研究企业社会责任表现与企业财务绩效关系的中间作用机制。构建企业社会责任表现、社会资本与财务绩效(短期财务绩效和长期财务绩效)的关系模型,采用261家企业的样本数据,运用 AMOS 7.0和 SPSS 19.0工具进行实证检验。研究结果表明,企业社会责任表现与短期财务绩效间不具有预期的显著负相关关系,与长期财务绩效具有显著正相关关系;社会资本是企业社会责任表现与企业财务绩效关系的中介变量,即良好的企业社会责任表现能够帮助积累社会资本,进而提升财务绩效。研究结果为企业社会责任表现与财务绩效关系的研究提供新的视角,阐明企业承担社会责任的内在动因和作用机制,为企业主动承担自身社会责任和政府制定相关政策规定提供理论依据。%From the perspective of stakeholder and introducing the concept of social capital , this study makes an in-depth investi-gation of the intermediate mechanism between corporate social performance (CSP) and corporate financial performance (CFP). After constructing the conceptual model of relationships among CSP , social capital and CFP (short-term vs.long-term), we con-duct an empirical research using AMPS 7.0 and SPSS 19.0 with data from 261 firms as samples.Results indicate that:①CSP is not negatively related to short-term financial performance as expected , but is positively related to long-term financial perform-ance;and ②social capital is the mediator between CSP and CFP , which means the accumulation of social capital benefits from the good corporate social performance , and then improves the financial performance .Our findings provide a new perspective in exploring the CSP-CFP relationship by clarifying the intrinsic motivation and mechanism of taking social responsibilities , as well as providing basis for corporates to

  19. The Masdar Institute solar platform: A new research facility in the UAE for development of CSP components and thermal energy storage systems

    Science.gov (United States)

    Calvet, Nicolas; Martins, Mathieu; Grange, Benjamin; Perez, Victor G.; Belasri, Djawed; Ali, Muhammad T.; Armstrong, Peter R.

    2016-05-01

    Masdar Institute established a new solar platform dedicated to research and development of concentrated solar power (CSP), and thermal energy storage systems. The facility includes among others, state of the art solar resource assessment apparatuses, a 100 kW beam down CSP plant that has been adapted to research activity, one independent 100 kW hot-oil loop, and new thermal energy storage systems. The objective of this platform is to develop cost efficient CSP solutions, promote and test these technologies in extreme desert conditions, and finally develop local expertise. The purpose of this paper is not to present experimental results, but more to give a general overview of the different capabilities of the Masdar Institute Solar Platform.

  20. What is Job Satisfaction?

    Science.gov (United States)

    Locke. Edwin A.

    Despite considerable interest in the study of job satisfaction and dissatisfaction, our understanding of these phenomena has not increased substantially in the past 30 years. It is argued that a major reason for this lack of progress is the implicit conception of casuality accepted by most psychologists. It is called the policy of "correlation…

  1. Job satisfaction of older workers

    NARCIS (Netherlands)

    Maassen van den Brink, H.; Groot, W.J.N.

    1999-01-01

    Using data for The Netherlands, this paper analyzes the relation between allocation, wages and job satisfaction. Five conclusions emerge from the empirical analysis: satisfaction with the job content is the main factor explaining overall job satisfaction; the effects of individual and job characteri

  2. Job satisfaction of older workers

    NARCIS (Netherlands)

    Maassen van den Brink, H.; Groot, W.J.N.

    1999-01-01

    Using data for The Netherlands, this paper analyzes the relation between allocation, wages and job satisfaction. Five conclusions emerge from the empirical analysis: satisfaction with the job content is the main factor explaining overall job satisfaction; the effects of individual and job

  3. Customer Satisfaction with Public Libraries.

    Science.gov (United States)

    D'Elia, George; Rodger, Eleanor Jo

    1996-01-01

    Surveys conducted in 142 urban public libraries examined customer satisfaction, comparisons with other libraries, and factors affecting satisfaction. Overall, customers were satisfied with their libraries but experienced different levels of satisfaction based on convenience, availability of materials and information, and services facilitating…

  4. Job satisfaction of older workers

    NARCIS (Netherlands)

    Groot, Wim; Brink, Henriëtte Maassen Van Den

    1999-01-01

    Using data for The Netherlands, this paper analyzes the relation between allocation, wages and job satisfaction. Five conclusions emerge from the empirical analysis: satisfaction with the job content is the main factor explaining overall job satisfaction; the effects of individual and job characteri

  5. A Simulation Model for Measuring Customer Satisfaction through Employee Satisfaction

    Science.gov (United States)

    Zondiros, Dimitris; Konstantopoulos, Nikolaos; Tomaras, Petros

    2007-12-01

    Customer satisfaction is defined as a measure of how a firm's product or service performs compared to customer's expectations. It has long been a subject of research due to its importance for measuring marketing and business performance. A lot of models have been developed for its measurement. This paper propose a simulation model using employee satisfaction as one of the most important factors leading to customer satisfaction (the others being expectations and disconfirmation of expectations). Data obtained from a two-year survey in customers of banks in Greece were used. The application of three approaches regarding employee satisfaction resulted in greater customer satisfaction when there is serious effort to keep employees satisfied.

  6. Core Self-Evaluations, life satisfaction, and sport satisfaction

    OpenAIRE

    Antón Aluja

    2014-01-01

    We investigated the association between Core Self-Evaluations (CSE) and life and sport satisfaction to assess whether the Core Self-Evaluations scale was a better predictor of life satisfaction or sport satisfaction. The study included three hundred and thirteen athletes (231 men and 82 women; age range to 47 years (Mage=22.9 years, SDage=5.9 years)). Participants completed the French language version of the CSE scale, the Satisfaction with Life Scale, and the Satisfaction with Sport Scale. A...

  7. Spectrum-splitting hybrid CSP-CPV solar energy system with standalone and parabolic trough plant retrofit applications

    Science.gov (United States)

    Orosz, Matthew; Zweibaum, Nicolas; Lance, Tamir; Ruiz, Maritza; Morad, Ratson

    2016-05-01

    Sunlight to electricity efficiencies of Parabolic Trough Collector (PTC) plants are typically on the order of 15%, while commercial solar Photovoltaic (PV) technologies routinely achieve efficiencies of greater than 20%, albeit with much higher conversion efficiencies of photons at the band gap. Hybridizing concentrating solar power and photovoltaic technologies can lead to higher aggregate efficiencies due to the matching of photons to the appropriate converter based on wavelength. This can be accomplished through spectral filtering whereby photons unusable or poorly utilitized by PV (IR and UV) are passed through to a heat collection element, while useful photons (VIS) are reflected onto a concentrating PV (CPV) receiver. The mechanical design and experimental validation of spectral splitting optics is described in conjunction with system level modeling and economic analysis. The implications of this architecture include higher efficiency, lower cost hybrid CSP-PV power systems, as well as the potential to retrofit existing PTC plants to boost their output by ~ 10% at a projected investment cost of less than 1 per additional net Watt and an IRR of 18%, while preserving the dispatchability of the CSP plant's thermal energy storage.

  8. Benefits of production extension and shifting with thermal storage for a 1MW CSP-ORC plant in Morocco

    Science.gov (United States)

    Bennouna, El Ghali; Mimet, Abdelaziz; Frej, Hicham

    2016-05-01

    The importance of thermal storage for commercial CSP (concentrated Solar Power) plants has now become obvious, this regardless of the solar technology used and the power cycle. The availability of a storage system to a plant operator brings a lot of possibilities for production management, cash flow optimization and grid stabilizing. In particular, and depending on plant location and local grid strategy, thermal storage can contribute, when wisely used, to control production and adapt it to the demand and / or power unbalances and varying prices. Storage systems design, sizing and configuration are proper to each power plant, hence systems that are now widely installed within large commercial solar plants are not necessarily suited for small scale decentralized production, and will not have the same effects. In this paper the benefits of thermal storage are studied for a 1MWe CSP plant with an ORC (Organic Rankine Cycle), this plant has many specific features which call for a detail analysis about the appropriate storage design and optimum operating strategies for decentralized solutions.

  9. Silver-Catalyzed Oxidative C(sp(3) )-P Bond Formation through C-C and P-H Bond Cleavage.

    Science.gov (United States)

    Li, Lili; Huang, Wenbin; Chen, Lijin; Dong, Jiaxing; Ma, Xuebing; Peng, Yungui

    2017-08-21

    The silver-catalyzed oxidative C(sp(3) )-H/P-H cross-coupling of 1,3-dicarbonyl compounds with H-phosphonates, followed by a chemo- and regioselective C(sp(3) )-C(CO) bond-cleavage step, provided heavily functionalized β-ketophosphonates. This novel method based on a readily available reaction system exhibits wide scope, high functional-group tolerance, and exclusive selectivity. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  10. Patients’ Satisfaction Evaluation

    Science.gov (United States)

    Mutlu, Ebru Kaya; Özdinçler, Arzu Razak

    2014-01-01

    Objectives: Although many studies were focused on the assessment of patients' satisfaction, few studies have specifically addressed this issue for knee osteoartritis. Global rating of change (GRC) scales are very commonly used in clinical research, particularly in the musculoskeletal area. The purpose of this study was to evaluate the patients’ satisfaction of the Mulligan’s Mobilization with Movement (MWM) techniques, Passive Mobilization (PM) techniques and physical therapy modalities (PTM) (superficial heat or cold, Transcutaneous Electrical Nerve Stimulation (TENS) and therapeutic ultrasound) in subjects with osteoarthritis of the knee. Methods: Thirty subjects with bilateral osteoarthritis of the knee were randomly assigned to the MWM group (n=21) or the PM group (n=21) or PTM group (n=22). The duration of treatment was a maximum of 5 weeks (12 sessions) in all groups. The subjects’ satisfaction were assessed before and after treatment by the GRC scales. One-way analysis of variance was used to compare the groups. When significance was observed, pairwise post hoc tests were performed using Tukey’s test. Results: Mean age and body mass index (BMI) of our study group were 54±7 years and 31±5 kg/m²,respectively in the MWM group, 56±6 years and 31±4 kg/m²,respectively in the PM group and 57±6 years and 32±5 kg/m²,respectively in the PTM group There were no significant differences between the groups with respect to age, BMI and GRC before treatment (p>0.05). Patients satisfaction of the three groups after treatment were significantly different (F=6.732 p=0.002). Pairwise comparisons of the treatment groups revealed a significant difference in the patients’ satisfaction between MWM and PTM (p=0.007), and between PM and PTM (p=0.007); there was no significant difference between MWM and PM (p>0.05). Conclusion: Manual therapy seemed to be superior to physical therapy modalities for the patients’ satisfaction. Therefore, we suggest that

  11. Mechanisms of change in adolescent life satisfaction: a longitudinal analysis.

    Science.gov (United States)

    Lyons, Michael D; Huebner, E Scott; Hills, Kimberly J; Van Horn, M Lee

    2013-10-01

    This study explored the psychosocial mechanisms of change associated with differences in levels and linear change of adolescents' global life satisfaction across a 2-year time period. Based on a theoretical model proposed by Evans (1994), this study tested the relations between selected personality (i.e., extraversion and neuroticism) and environmental (stressful life events) variables and global life satisfaction when mediated by internalizing and externalizing problems. The results suggested support for internalizing problems as a mediator of the relationship of personality and environmental variables with life satisfaction. Pathways mediated by internalizing problems significantly predicted levels and linear change of life satisfaction across a 2-year time span. Furthermore, pathways mediated by externalizing problems significantly predicted the level but not the linear change of life satisfaction. Thus, behavior problems and their antecedents appear to relate significantly to adolescents' perceptions of their quality of life. Implications for adolescent mental health promotion were discussed. Copyright © 2013 Society for the Study of School Psychology. Published by Elsevier Ltd. All rights reserved.

  12. Satisfaction, Challenges, and Interaction in Online Education: A Generational Comparison

    Science.gov (United States)

    Yousef, Martin C.

    2012-01-01

    Problem: Research suggests that multiple generations of students (predominantly Generation X and millennials) are concurrently enrolled in online classes and that the number of online students continues to grow. The problem investigated in this study was to identify the level of satisfaction as well as the preferences of students from Generation X…

  13. [Population satisfaction with health care and physicians' job satisfaction].

    Science.gov (United States)

    Carlsen, Fredrik; Bringedal, Berit

    2009-02-26

    To assess whether development of health services in Norway has been well balanced in terms of satisfaction; time series variation has been compared for population satisfaction with health services and physician job satisfaction. Data were retrieved from the following sources and years: the reference panel of The Research Institute of the Norwegian Medical Association on physician job satisfaction in the years 1994, 2000, 2002 and 2006; the municipal surveys of TNS Gallup on population satisfaction with health care (primary) in the years 1995 - 2000, 2003 and 2005 and in 1999, 2000 and 2003 for satisfaction with hospitals, and from the Norwegian part of the International Social Survey Program (ISSP) on population willingness to allocate resources to public health care (in 1990 and 2006). Time series of physician satisfaction were computed from changes in satisfaction between consecutive surveys. Time series of population satisfaction were computed from annual regression-adjusted means that control for the association between satisfaction and observable personal characteristics. On a scale from 10 to 70, hospital doctors' job satisfaction increased from 50.2 in 1994 to 52.3 in 2006. General practitioners' job satisfaction increased from 52.3 to 55.5 in the same period. From 1995 to 2005, consumer satisfaction with primary care increased from 4.43 to 4.54 and with hospital services from 4.23 to 4.47 (on a scale from 1 to 6). The proportion of the population who believes more public resources should be spent on health care increased from 82.7 % in 1990 to 85.2 % in 2006. The development in the health care sector seems to be balanced in the sense that views of the population and health personnel have followed parallel trajectories. A large and increasing share of the population is willing to allocate more resources to health care.

  14. Evaluating the link between human resource management decisions and patient satisfaction with quality of care.

    Science.gov (United States)

    Oppel, Eva-Maria; Winter, Vera; Schreyögg, Jonas

    Patient satisfaction with quality of care is becoming increasingly important in the competitive hospital market. Simultaneously, the growing shortage of clinical staff poses a considerable challenge to ensuring a high quality of care. In this context, a question emerges regarding whether and how human resource management (HRM) might serve as a means to reduce staff shortage problems and to increase patient satisfaction. Although considerable efforts have been devoted to understanding the concepts of patient satisfaction and HRM, little is known about the interrelationships between these concepts or about the link between staff shortage problems and patients' satisfaction with quality of care. The aim of this study was to investigate the relationship between strategic human resource management (SHRM), staff shortage problems, and patients' satisfaction with care. Furthermore, we analyze how the HRM decision to fill short-term vacancies through temporary staffing affects patient satisfaction. We differentiate between physicians and nurses. We develop and empirically test a theoretical model. The data (n = 165) are derived from a survey on SHRM that was sent to 732 German hospitals and from a survey on patient satisfaction that comprises 436,848 patient satisfaction ratings. We use a structural equation modeling approach to test the model. The results indicate that SHRM significantly reduces staff shortage problems for both occupational groups. Having fewer physician shortage problems is significantly associated with higher levels of patient satisfaction, whereas this effect is not significant for nurses. Furthermore, the use of temporary staffing considerably reduces patients' satisfaction with care. Hospital managers are advised to consider the effects of HRM decisions on patients' satisfaction with care. In particular, investments in SHRM targeted at physicians have significantly positive effects on patient satisfaction, whereas the temporary staffing of physicians

  15. Adenovirus 5-vectored P. falciparum vaccine expressing CSP and AMA1. Part A: safety and immunogenicity in seronegative adults.

    Directory of Open Access Journals (Sweden)

    Martha Sedegah

    Full Text Available BACKGROUND: Models of immunity to malaria indicate the importance of CD8+ T cell responses for targeting intrahepatic stages and antibodies for targeting sporozoite and blood stages. We designed a multistage adenovirus 5 (Ad5-vectored Plasmodium falciparum malaria vaccine, aiming to induce both types of responses in humans, that was tested for safety and immunogenicity in a Phase 1 dose escalation trial in Ad5-seronegative volunteers. METHODOLOGY/PRINCIPAL FINDINGS: The NMRC-M3V-Ad-PfCA vaccine combines two adenovectors encoding circumsporozoite protein (CSP and apical membrane antigen-1 (AMA1. Group 1 (n = 6 healthy volunteers received one intramuscular injection of 2×10∧10 particle units (1×10∧10 each construct and Group 2 (n = 6 a five-fold higher dose. Transient, mild to moderate adverse events were more pronounced with the higher dose. ELISpot responses to CSP and AMA1 peaked at 1 month, were higher in the low dose (geomean CSP = 422, AMA1 = 862 spot forming cells/million than in the high dose (CSP = 154, p = 0.049, AMA1 = 423, p = 0.045 group and were still positive at 12 months in a number of volunteers. ELISpot depletion assays identified dependence on CD4+ or on both CD4+ and CD8+ T cells, with few responses dependent only on CD8+ T cells. Intracellular cytokine staining detected stronger CD8+ than CD4+ T cell IFN-γ responses (CSP p = 0.0001, AMA1 p = 0.003, but similar frequencies of multifunctional CD4+ and CD8+ T cells secreting two or more of IFN-γ, TNF-α or IL-2. Median fluorescence intensities were 7-10 fold higher in triple than single secreting cells. Antibody responses were low but trended higher in the high dose group and did not inhibit growth of cultured P. falciparum blood stage parasites. SIGNIFICANCE: As found in other trials, adenovectored vaccines appeared safe and well-tolerated at doses up to 1×10∧11 particle units. This is the first demonstration in humans of a

  16. CSP parabolic trough and power tower performance analysis through the Southern African universities radiometric network (SAURAN) data

    Science.gov (United States)

    Pidaparthi, A. S.; Dall, E. P.; Hoffmann, J. E.; Dinter, F.

    2016-05-01

    The objective of this paper is to analyse the performance of parabolic trough and power tower technologies by selecting two radiometric stations in different geographic locations, with approximately equal annual direct normal irradiance (DNI) values, but with different monthly DNI distributions. The two stations chosen for this study are situated at the University of Free State, Bloemfontein, Free State Province and in Vanrhynsdorp, Western Cape Province. The annual measured DNI values for both these locations in South Africa are in the range of 2500-2700 kWh/m2. The comparison between the different monthly DNI distributions of these selected sites includes an assessment of annual hourly data in order to study the performance analysis of the most mature concentrating solar power (CSP) technologies, namely parabolic trough and power tower plants. The weather data has been obtained from the Southern African Universities Radiometric Network (SAURAN). A comparison between the different monthly DNI distributions of these selected sites includes the assessment of hourly data. Selection of these radiometric stations has also been done on the basis that they have been operational for at least one year. The first year that most SAURAN stations have been online for at least one year is 2014, thus data from this year has been considered. The annual performance analysis shows that parabolic trough plants have a higher energy yield in Vanrhynsdorp while power tower plants seem to be more suitable for Bloemfontein. Power tower plants in both the locations have a higher annual energy yield when compared with parabolic trough plants. A parabolic trough power plant in Vanrhynsdorp in the Western Cape Province has very low monthly electricity generation in the winter months of May, June, July and August. This is partly due to the higher cosine losses in the parabolic trough `one-axis' tracking systems and lower DNI values in the winter months. However, a power tower plant in

  17. A computational study on the N-heterocyclic carbene-catalyzed Csp(2)-Csp(3) bond activation/[4+2] cycloaddition cascade reaction of cyclobutenones with imines: a new application of the conservation principle of molecular orbital symmetry.

    Science.gov (United States)

    Wang, Yang; Wu, Bohua; Zhang, Haoyang; Wei, Donghui; Tang, Mingsheng

    2016-07-20

    A comprehensive density functional theory (DFT) investigation has been performed to interrogate the mechanisms and stereoselectivities of the Csp(2)-Csp(3) single bond activation of cyclobutenones and their [4+2] cycloaddition reaction with imines via N-heterocyclic carbene (NHC) organocatalysis. According to our calculated results, the fundamental reaction pathway contains four steps: nucleophilic addition of NHC to cyclobutenone, C-C bond cleavage for the formation of an enolate intermediate, [4+2] cycloaddition of the enolate intermediate with isatin imine, and the elimination of the NHC catalyst. In addition, the calculated results also reveal that the second reaction step is the rate-determining step, whereas the third step is the regio- and stereo-selectivity determining step. For the regio- and stereo-selectivity determining step, all four possible attack modes were considered. The addition of the C[double bond, length as m-dash]N bond in isatin imine to the dienolate intermediate is more energy favorable than the addition of the C[double bond, length as m-dash]O bond to a dienolate intermediate. Moreover, the Re face addition of the C[double bond, length as m-dash]N bond in isatin imine to the Re face of the dienolate intermediate leading to the SS configuration N-containing product was demonstrated to be most energy favorable, which is mainly due to the stronger second-order perturbation energy value in the corresponding transition state. Furthermore, by tracking the frontier molecular orbital (FMO) changes in the rate-determining C-C bond cleavage step, we found that the reaction obeys the conservation principle of molecular orbital symmetry. We believe that the present work would provide valuable insights into this kind of reaction.

  18. Copper-catalyzed aerobic C(sp2)-H functionalization for C-N bond formation: synthesis of pyrazoles and indazoles.

    Science.gov (United States)

    Li, Xianwei; He, Li; Chen, Huoji; Wu, Wanqing; Jiang, Huanfeng

    2013-04-19

    A simple, practical, and highly efficient synthesis of pyrazoles and indazoles via copper-catalyzed direct aerobic oxidative C(sp(2))-H amination has been reported herein. This process tolerated a variety of functional groups under mild conditions. Further diversification of pyrazoles was also investigated, which provided its potential for drug discovery.

  19. Copper-catalyzed C(sp(3))-H functionalization of ketones with vinyl azides: synthesis of substituted-1H-pyrroles.

    Science.gov (United States)

    Donthiri, Ramachandra Reddy; Samanta, Supravat; Adimurthy, Subbarayappa

    2015-10-28

    Copper-catalyzed C(sp(3))-H functionalization of ketones with vinyl azides for the synthesis of substituted pyrroles has been developed. The method is a straightforward and efficient way to access a series of 2,3,5-trisubstituted-1H-pyrroles in modest to excellent yields with broad functional group tolerance under mild conditions.

  20. Concept and Evaluation of Job Satisfaction: Developed Job Satisfaction Index

    Directory of Open Access Journals (Sweden)

    Hulya Cakmur

    2011-12-01

    Full Text Available SUMMARY: In this study; the reasons and effects determining job satisfaction were analyzed in a theoretical basis by universally defining the content of job satisfaction concept and scales utilized in the assessment of job satisfaction were described. The aim of the study is to introduce the „Developed Job Descriptive Index‟ which has been reestablished according to the needs of our country. [TAF Prev Med Bull 2011; 10(6.000: 759-764

  1. The Vehicle Routing Problem with Simultaneous Pickup and Delivery Considering Customer Satisfaction%考虑客户满意度的同时收发车辆路径问题

    Institute of Scientific and Technical Information of China (English)

    范静

    2011-01-01

    当客户要求车辆一次性完成发送以及收集货物的任务时, 只需考虑车辆的路径安排即可.但若客户进一步提出在时间窗内完成的话,就必须考虑客户的等待时间--客户的满意度的衡量标准,等待时间越短满意度越高.因此问题的目标为最小化车辆路径总长度、最小化所有客户等待时间之和.本文通过加权转变为单目标函数,由最邻近法及最廉价插入法得到初始解后经过禁忌搜索算法可得到改进算法,解并通过实例对不同权参数的情况进行了比较.%When customers require the vehicles to pickup and delivery goods simultaneous, we just consider how to arrange the path of every vehicle.However, if costomers further propose the vehicles to complete within time windows, costumers' waiting time which is regarded as the criterion of customers satisfaction must be considered, that is, the shorter, the higher the satisfaction.Therefore the goal is to minimize the total length of vehicles' paths, and to minimize the sum of all customers' waiting time.In this paper, combining into a single objective function by weight, initial solution, obtained by the nearest neighbor method and the cheapest insertion method, can be improved by tabu search algorithm.Finally solutions of different parameters are compared.

  2. Synthesis and characterization in monkey of [{sup 11}C]SP203 as a radioligand for imaging brain metabotropic glutamate 5 receptors

    Energy Technology Data Exchange (ETDEWEB)

    Simeon, Fabrice G.; Liow, Jeih-San; Zhang, Yi; Hong, Jinsoo; Gladding, Robert L.; Zoghbi, Sami S.; Innis, Robert B.; Pike, Victor W. [National Institutes of Health, Molecular Imaging Branch, National Institute of Mental Health, Bethesda, MD (United States)

    2012-12-15

    [{sup 18}F]SP203 (3-fluoro-5-(2-(2-([{sup 18}F]fluoromethyl)-thiazol-4-yl)ethynyl)benzonitrile) is an effective high-affinity and selective radioligand for imaging metabotropic 5 receptors (mGluR5) in human brain with PET. To provide a radioligand that may be used for more than one scanning session in the same subject in a single day, we set out to label SP203 with shorter-lived {sup 11}C (t{sub 1/2} = 20.4 min) and to characterize its behavior as a radioligand with PET in the monkey. Iodo and bromo precursors were obtained by cross-coupling 2-fluoromethyl-4-((trimethylsilyl)ethynyl)-1,3-thiazole with 3,5-diiodofluorobenzene and 3,5-dibromofluorobenzene, respectively. Treatment of either precursor with [{sup 11}C]cyanide ion rapidly gave [{sup 11}C]SP203, which was purified with high-performance liquid chromatography. PET was used to measure the uptake of radioactivity in brain regions after injecting [{sup 11}C]SP203 intravenously into rhesus monkeys at baseline and under conditions in which mGluR5 were blocked with 3-[(2-methyl-1,3-thiazol-4-yl)ethynyl]pyridine (MTEP). The emergence of radiometabolites in monkey blood in vitro and in vivo was assessed with radio-HPLC. The stability of [{sup 11}C]SP203 in human blood in vitro was also measured. The iodo precursor gave [{sup 11}C]SP203 in higher radiochemical yield (>98 %) than the bromo precursor (20-52 %). After intravenous administration of [{sup 11}C]SP203 into three rhesus monkeys, radioactivity peaked early in brain (average 12.5 min) with a regional distribution in rank order of expected mGluR5 density. Peak uptake was followed by a steady decline. No radioactivity accumulated in the skull. In monkeys pretreated with MTEP before [{sup 11}C]SP203 administration, radioactivity uptake in brain was again high but then declined more rapidly than in the baseline scan to a common low level. [{sup 11}C]SP203 was unstable in monkey blood in vitro and in vivo, and gave predominantly less lipophilic radiometabolites

  3. Zonal method solution of radiative heat transfer in a one-dimensional long roller-hearth furnace in CSP

    Institute of Scientific and Technical Information of China (English)

    Wenfei Wu; Yanhui Feng; Xinxin Zhang

    2007-01-01

    A radiative heat transfer mathematical model for a one-dimensional long furnace was set up in a through-type roller-hearth furnace (TTRHF) in compact strip production (CSP). To accurately predict the heat exchange in the furnace, modeling of the complex gas energy-balance equation in volume zones was considered, and the heat transfer model of heating slabs and wall lines was coupled with the radiative heat transfer model to identify the surface zonal temperature. With numerical simulation, the temperature fields of gas, slabs, and wall lines in the furnace under one typical working condition were carefully accounted and analyzed. The fundamental theory for analyzing the thermal process in TTRHF was provided.

  4. Carbon Diffusion in Hot Strips of Low Carbon Steel Produced by CSP Line under Different Thermal Histories

    Institute of Scientific and Technical Information of China (English)

    Hao YU; Hao REN; Yonglin KANG; Kelu WANG

    2005-01-01

    Two experiments were carried out on the same compact strip production (CSP) line, which differs in that one of them experienced γ→α→γ* thermal history. The differences in microstructure, precipitation, misorientation etc between two experiments were investigated by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron back-scattered diffraction (EBSD) and positron annihilation technique (PAT). The carbon concentration in matrix is more inhomogeneous in the experiment than that with γ→α→γ* thermal history. The specific precipitation characteristic in the experiment without γ→α→γ* thermal history is discussed on the basis of different carbon diffusion behavior and interaction between dislocation and excess carbon.

  5. Electro-Kinetic Pumping with Slip Irreversibility in Heat Exchange of CSP-Powered Bio-Digester Assemblies

    Directory of Open Access Journals (Sweden)

    Emmanuel O.B. Ogedengbe

    2012-12-01

    Full Text Available Parametric studies of the effects of slip irreversibility in concentrating solar power (CSP-powered bio-digester assemblies are investigated. Complexities regarding the identification of the appropriate electro-kinetic phenomena for certain electrolyte phases are reviewed. The application of exergy analysis to the design of energy conversion devices, like solar thermal collectors, for the required heat of formation in a downdraft waste food bio-digester, is discussed. Thermal management in the silicon-based substrate of the energy system is analyzed. The rectangular-shaped micro-channels are simulated with a finite-volume, staggered coupling of the pressure-velocity fields. Entropy generation transport within the energy system is determined and coupled with the solution procedure. Consequently, the effects of channel size perturbation, Reynolds number, and pressure ratios on the thermal performance and exergy destruction are presented. A comparative analysis of the axial heat conduction for thermal management in energy conversion devices is proposed.

  6. Investigation of pain and life satisfaction in older adults.

    Science.gov (United States)

    Karadag Arli, Senay; Bakan, Ayse Berivan; Varol, Ela; Aslan, Gulpinar

    2017-07-28

    The present study aimed to investigate pain and life satisfaction in older adults. This study, which is descriptive in nature, utilized the relational screening model. It was carried out between September 2016 and March 2017, with 387 people aged ≥65 years who were registered in Family Health Centers in Ağrı, a city located in eastern Turkey. The participants' mean Geriatric Pain Measure score was 53.23 ± 29.40, indicating moderate pain. The mean Life Satisfaction Scale score was 8.50 ± 5.34, indicating moderate life satisfaction level. The study also found a statistically significant, negative relationship between life satisfaction and geriatric pain. An increase in the elderly population brings various health problems. The results of the present study showed that the rate of chronic diseases is very high in older adults. Therefore, pain is one of the most frequently encountered health problems, and it has negative effects on life satisfaction. In conclusion, is it considered that older adults' life satisfaction could increase if their pain is identified and reduced effectively. Geriatr Gerontol Int 2017; ••: ••-••. © 2017 Japan Geriatrics Society.

  7. International, collaborative assessment of limitations of chromosome-specific probes (CSP) and fluorescent in situ hybridization (FISH): Analysis of expected detections in 73,000 prenatal cases

    Energy Technology Data Exchange (ETDEWEB)

    Evans, M.I.; Henry, G.P.; Miller, W.A. [Wayne State Univ., Detroit, MI (United States)] [and others

    1994-09-01

    FISH and CSP have been proposed to reduce karyotyping need. The purpose of this study was to assess the potential efficacy of CSP-FISH using currently available probes (13, 18, 21, X, & Y) in large, prenatal diagnostic centers. Results (1990-1993) from 7 centers in 4 countries were divided by those expected to be detectable by currently available probes, and those which would be missed assuming 10% probe efficacy. 72,994 karyotypes included 699 trisomy 21`s, 352 trisomy 18`s, 136 trisomy 13`s, 358 sex chromosome aneuploidies, 70 triploidies, and 855 others (translocations, inversions, deletions, markers). Of 2,613 abnormalities, 1,745 would be detectable (66.8%). [Detroit 55.7%, Stockholm 68.3%, Boston 52.6%, Denver 61.3%, Muenster 77.0%, London 84.5%, Philadelphia 69.4%]. Centers with high proportions of referrals for ultrasound anomalies had the highest CSP-FISH positives secondary to increased T 18 & 13. We conclude: (1) 73,000 karyotypes show relatively consistent incidences of the common trisomies, sex chromosome abnormalities, and other chromosome abnormalities among the centers. (2) The proportion expected detectable by FISH-CSP technology varies from 52.6% to 84.5%, averaging 66.8%. (3) 1/3 of the karyotypic abnormalities would be missed, and therefore, replacement of complete karyotyping with FISH would have unacceptably high false-negative rates for routine evaluation. (4) FISH-CSP, while useful when positive for anomalies, is not sufficient when negative to obviate the need for a complete karyotype.

  8. 利用CSP方法对IEEE802.11w形式化分析%Using CSP for formal analysis of IEEE 802.11w protocol

    Institute of Scientific and Technical Information of China (English)

    吴名欢; 程小辉; 李雄伟

    2015-01-01

    IEEE 802.11w authentication protocol based on the IEEE 802.11i enhances the IEEE 802.11i security for man-agement frames.In order to study the safety of the protocol, this paper modeled the protocol by formal analysis using communi-cating sequential processes (CSP ).This paper chosed the role of protocol and the attacker for modelling and verification.It used CSP for modelling and performed the verification using FDR.In the experiments, it found an attack in this protocol.It checked authentication and security attributes and discovered the middleman attack case.It can provide a reference to improve the safety of IEEE 802.11w help.%运行在 IEEE 802.11i 基础上的 IEEE 802.11w 增加了对无线网络管理帧的保护,针对 IEEE 802.11w 协议的安全性问题,利用了通信顺序进程(CSP)对其进行形式化分析。对协议运行在恶意环境中,存在攻击者的情况下,利用 CSP 方法建立了攻击者和协议主体的 CSP 进程模型。使用模型检测工具故障发散改进器(FDR)进行仿真实验,对协议的认证和安全属性进行了校验,发现该协议存在中间人攻击情况,为提高 IEEE 802.11w的安全性提供了帮助。

  9. Large capacity, multi-fuel, and high temperature working fluid heaters to optimize CSP plant cost, complexity and annual generation

    Science.gov (United States)

    Peterseim, J. H.; Viscuso, L.; Hellwig, U.; McIntyre, P.

    2016-05-01

    This paper analyses the potential to optimize high temperature fluid back-up systems for concentrating solar power (CSP) plants by investigating the cost impact of component capacity and the impact of using multiple fuels on annual generation. Until now back-up heaters have been limited to 20MWth capacity but larger units have been realised in other industries. Installing larger units yields economy-of-scale benefits through improved manufacturing, optimised transport, and minimized on-site installation work. Halving the number of back-up boilers can yield cost reduction of 23% while minimizing plant complexity and on-site construction risk. However, to achieve these benefits it is important to adapt the back-up heaters to the plant's requirements (load change, capacity, minimum load, etc.) and design for manufacture, transport and assembly. Despite the fact that biomass availability is decreasing with increasing direct normal irradiance (DNI), some biomass is available in areas suitable for CSP plants. The use of these biomass resources is beneficial to maximise annual renewable energy generation, substitute natural gas, and use locally/seasonally available biomass resources that may not be used otherwise. Even small biomass quantities of only 50,000 t/a can increase the capacity factor of a 50MWe parabolic trough plant with 7h thermal energy storage from 40 to 49%. This is a valuable increase and such a concept is suitable for new plants and retrofit applications. However, similar to the capacity optimisation of back-up heaters, various design criteria have to be considered to ensure a successful project.

  10. Internal marketing and the antecedents of nurse satisfaction and loyalty.

    Science.gov (United States)

    Peltier, James W; Pointer, Lucille; Schibrowsky, John A

    2008-01-01

    Employee satisfaction and retention are critical issues that influence the success of any organization. Yet, one of the most critical problems facing the worldwide health care industry is the shortage of qualified nurses. Recent calls have been made within the traditional nursing literature for research that utilizes marketing and business models to better understand nurse satisfaction and retention. The purpose of this study is to develop scales that can be used to empirically test a model of the proposed antecedents of nurse job satisfaction and loyalty which have been used widely in the internal marketing and the relationship-marketing literature. Specifically, the study will investigate the degree to which structural bonding, social bonding, financial bonding activities, and quality of care impact how well nurses are satisfied with their job and their commitment to the organization. The results show that quality of care most impacted nurse satisfaction and loyalty, followed by structural, social, and financial bonds.

  11. Healthcare workers satisfaction and patient satisfaction – where is the linkage?

    OpenAIRE

    Janicijevic, I; Seke, K; Djokovic, A; Filipovic, T

    2013-01-01

    Background: This study aims to assess at what level healthcare worker satisfaction affects patient satisfaction, as well as which elements of healthcare worker satisfaction affect health service quality and patient satisfaction.

  12. Marriage Preparation: Factors Associated with Consumer Satisfaction.

    Science.gov (United States)

    Russell, Mary N.; Lyster, Rosanne Farnden

    1992-01-01

    Evaluated marriage preparation program to determine overall consumer satisfaction with the program, satisfaction with specific content areas, and extent to which consumer characteristics affected satisfaction ratings. Results of survey of 196 couples revealed high overall satisfaction levels, variability in satisfaction by content area, and…

  13. Thermal fluids for CSP systems: Alkaline nitrates/nitrites thermodynamics modelling method

    Science.gov (United States)

    Tizzoni, A. C.; Sau, S.; Corsaro, N.; Giaconia, A.; D'Ottavi, C.; Licoccia, S.

    2016-05-01

    Molten salt (MS) mixtures are used for the transport (HTF-heat transfer fluid) and storage of heat (HSM-heat storage material) in Concentration Solar Plants (CSP). In general, alkaline and earth-alkaline nitrate/nitrite mixtures are employed. Along with its upper stability temperature, the melting point (liquidus point) of a MS mixture is one of the main parameters which defines its usefulness as a HTF and HSM medium. As a result, we would like to develop a predictive model which will allow us to forecast freezing points for different MS mixture compositions; thus circumventing the need to determine experimentally the phase diagram for each MS mixture. To model ternary/quaternary phase diagram, parameters for the binary subsystems are to be determined, which is the purpose of the concerned work. In a binary system with components A and B, in phase equilibrium conditions (e.g. liquid and solid) the chemical potentials (partial molar Gibbs energy) for each component in each phase are equal. For an ideal solution it is possible to calculate the mixing (A+B) Gibbs energy:ΔG = ΔH - TΔS = RT(xAlnxA + xBlnxB) In case of non-ideal solid/liquid mixtures, such as the nitrates/nitrites compositions investigated in this work, the actual value will differ from the ideal one by an amount defined as the "mixing" (mix) Gibbs free energy. If the resulting mixtures is assumed, as indicated in the previous literature, to follow a "regular solution" model, where all the non-ideality is considered included in the enthalpy of mixing value and considering, for instance, the A component:Δ G ≡0 =(Δ HA-T Δ SA)+(ΔH¯ m i x AL-T ΔS¯ m i x AL)-(ΔH¯ m i x AS-T ΔS¯ m i x AS)where the molar partial amounts can be calculated from the total value by the Gibbs Duhem equation: (ΔH¯m i x AL=ΔHm i x-XB Ld/Δ Hm i x d XB L ) L;(ΔH¯m i x AS=ΔHm i x-XB Sd/Δ Hm i x d XB S ) S and, in general, it is possible to express the mixing enthalpy for solids and liquids as a function of the mol

  14. Retirement Applicant Satisfaction Survey Results

    Data.gov (United States)

    Social Security Administration — This dataset contains information about the Retirement Applicant Survey (RAS). The survey measured satisfaction results with the retirement application process. The...

  15. Proactive managers buoy satisfaction.

    Science.gov (United States)

    2010-10-01

    The ED leaders at St. Clair Hospital in Pittsburgh, PA, say that"managing by walking around"was one of the keys to their earning a ranking from Press Ganey as the no. 1 ED in patient satisfaction for EDs with more than 50,000 annual visits. The director selects and talks with random patients, following up on their care and making sure they're satisfied. Staff members are asked specific questions based on the Press Ganey priority indices. If there are patient complaints about a staff member, confidential meetings are held to discuss ways to improve.

  16. Relationship of Life Satisfaction and Job Satisfaction among Pakistani Army Soldiers

    OpenAIRE

    Summaira Naz

    2015-01-01

    The present study had two main objectives; first, to discover the relationships between job satisfaction and life satisfaction in Pakistani army soldiers, second, to find out the age, salary, marital status, and education differences on job satisfaction and life satisfaction in Pakistani army soldiers. In the present study two questionnaires; Job Satisfaction Scale JSS (Macdonald & Maclntyre, 1997) and Satisfaction With Life Scale (Diener, ...

  17. Relationship of Life Satisfaction and Job Satisfaction among Pakistani Army Soldiers

    OpenAIRE

    Summaira Naz

    2015-01-01

    The present study had two main objectives; first, to discover the relationships between job satisfaction and life satisfaction in Pakistani army soldiers, second, to find out the age, salary, marital status, and education differences on job satisfaction and life satisfaction in Pakistani army soldiers. In the present study two questionnaires; Job Satisfaction Scale JSS (Macdonald & Maclntyre, 1997) and Satisfaction With Life Scale (Diener, ...

  18. Choco: an Open Source Java Constraint Programming Library

    OpenAIRE

    Jussien, Narendra; Rochart, Guillaume; Lorca, Xavier

    2008-01-01

    International audience; Choco is a java library for constraint satisfaction problems (CSP), constraint programming (CP) and explanation-based constraint solving (e-CP). It is built on a event-based propagation mechanism with backtrackable structures.

  19. Q型烟粉虱化学感受蛋白CSP1与植物挥发物的结合特征%Binding Characterization of Chemosensory Protein CSP1 in the Bemisia tabaci Biotype Q with Plant Volatiles

    Institute of Scientific and Technical Information of China (English)

    吴帆; 张晓曼; 赵磊; 崔旭红; 李红亮; 罗晨

    2015-01-01

    【目的】克隆Q型烟粉虱(Bemisiatabaci)化学感受蛋白1(chemosensory protein 1,CSP1)基因,诱导表达Q型烟粉虱CSP1重组蛋白(以下简称BtCSP1),研究其与主要寄主植物挥发性气味分子的结合特性。【方法】利用全长引物通过RT-PCR扩增并克隆Q型烟粉虱CSP1基因ORF全长,连接并构建pET-30a(+)原核表达载体,转化入BL21(DE3)大肠杆菌感受态细胞,并用IPTG诱导表达BtCSP1重组蛋白。收集菌液后超声破碎细胞,离心取上清,经Ni2+-琼脂糖柱结合梯度浓度咪唑洗脱纯化后,经PBS反复透析获得重组蛋白,并用Bradford法测定重组蛋白浓度。采用常见的N-苯基-1-萘胺(N-phenyl-1-naphthylamine,1-NPN)荧光探针作为报告子,利用荧光竞争结合法研究重组BtCSP1蛋白与植物挥发物的结合功能。首先用1 mmol∙L-11-NPN滴定BtCSP1蛋白溶液,直至蛋白最大发射波长处的荧光值完全猝灭为止,然后再以各供试配基滴定BtCSP1-1-NPN体系,通过配基竞争猝灭1-NPN最大发射波长,并用Scatchard等方程计算表征BtCSP1与配基亲和力大小的解离常数KD。【结果】克隆了Q型烟粉虱CSP1基因ORF全长,经双酶切和连接构建了pET-30a(+)/CSP1重组质粒,在IPTG终浓度为1 mmol∙L-1的条件下诱导获得了BtCSP1重组蛋白,Ni2+-琼脂糖柱纯化透析后测定重组蛋白浓度,稀释至1.5µmol∙L-1作为工作浓度。在荧光光谱试验中,Scatchard方程线性化后(相关系数达到0.9967),显示BtCSP1与1-NPN的解离常数K1-NPN为2.78µmol∙L-1,结合位点数n为0.82,表明两者结合较好,且基本是1:1结合,适合作为本试验中竞争性荧光结合试验的报告子。在荧光竞争结合试验中,有多种供试植物挥发物分子能使1-NPN的相对荧光强度降低到50%以下,其中包括能引起烟粉虱趋避行为的化合物,如3-蒈烯、p-伞花烃、顺-3-己烯-1-醇

  20. Body Image Satisfaction among Blacks

    Science.gov (United States)

    Gustat, Jeanette; Carton, Thomas W.; Shahien, Amir A.; Andersen, Lori

    2017-01-01

    Satisfaction with body image is a factor related to health outcomes. The purpose of this study is to examine the relationship between body image satisfaction and body size perception in an urban, Black community sample in New Orleans, Louisiana. Only 42.2% of respondents were satisfied with their body image and 44.1% correctly perceived their body…

  1. Job Satisfaction of University Faculty.

    Science.gov (United States)

    Onuoha, Alphonso R. A.

    1980-01-01

    In testing Herzberg's two-factor theory of job satisfaction, it was found that theories of job satisfaction may be closely related to the methods used in collecting data; hence, the results of studies employing different methods raise questions about the validity of a particular theory. (Author/IRT)

  2. Perspectives on User Satisfaction Surveys.

    Science.gov (United States)

    Cullen, Rowena

    2001-01-01

    Discusses academic libraries, digital environments, increasing competition, the relationship between service quality and user satisfaction, and user surveys. Describes the SERVQUAL model that measures service quality and user satisfaction in academic libraries; considers gaps between user expectations and managers' perceptions of user…

  3. Job Satisfaction in Fisheries Compared

    Science.gov (United States)

    Pollnac, Richard; Bavinck, Maarten; Monnereau, Iris

    2012-01-01

    This article draws comparative lessons from seven job satisfaction studies on marine capture fishing that were recently carried out in nine countries and three geographical regions--Asia, Africa, and the Caribbean. The seven studies made use of an identical job satisfaction assessment tool and present information on a selection of metiers mainly…

  4. Job Satisfaction: An International Overview

    Science.gov (United States)

    Thurman, J. E.

    1977-01-01

    An international comparison of job satisfaction levels strongly suggests that the idea of job satisfaction as a gauge of well-being at the workplace should be rejected, but that workers' reactions to aspects of their jobs may be meaningful. The article presents data from national surveys of managers, workers, and trade unions to explain this…

  5. On measurement of customer satisfaction

    DEFF Research Database (Denmark)

    Kristensen, Kai; Kanji, Gopal; Dahlgaard, Jens Jørn

    1992-01-01

    Based on a theoretical argument where company profit as a function of total customer satisfaction is maximized, a new system for measuring and balancing customer satisfaction with respect to individual quality characteritics is developed. A proced implementation is suggested and the results of a ...

  6. Job satisfaction and contingent employment

    NARCIS (Netherlands)

    de Graaf-Zijl, M.

    2012-01-01

    This paper analyses job satisfaction as an aggregate of satisfaction with several job aspects, with special focus on the influence of contingent-employment contracts. Fixed-effect analysis is applied on a longitudinal sample of Dutch employees in four work arrangements: regular, fixed-term, on-call

  7. Job satisfaction among recreation practitioners

    Science.gov (United States)

    Erin Parks; Andrew Holdnak

    2002-01-01

    Job satisfaction among recreation professionals can be affected by many working conditions. This study has investigated the impact fourteen variables had on the job satisfaction of recreation practitioners. The sample consisted of 106 responses from members of the Resort and Commercial Recreation Association (RCRA). The results of the regression analysis for job...

  8. Job Satisfaction of University Faculty.

    Science.gov (United States)

    Onuoha, Alphonso R. A.

    1980-01-01

    In testing Herzberg's two-factor theory of job satisfaction, it was found that theories of job satisfaction may be closely related to the methods used in collecting data; hence, the results of studies employing different methods raise questions about the validity of a particular theory. (Author/IRT)

  9. Marital Satisfaction and Marital Stability

    Science.gov (United States)

    Lenthall, Gerald

    1977-01-01

    Marital satisfaction is viewed as a function of the comparison between one's marital expectations and one's marital outcome. Marital stability is viewed as a function of the comparison between one's best available marital alternative and one's marital outcome. Hence, marital satisfaction and marital stability can differ. (Author)

  10. Career satisfaction and professional accomplishments.

    Science.gov (United States)

    Hojat, Mohammadreza; Kowitt, Benjamin; Doria, Cataldo; Gonnella, Joseph S

    2010-10-01

    Research on doctor career satisfaction has often focused on factors such as income, specialty, gender, work hours, autonomy, patient load, lifestyle preferences, work environment, and insurance regulations. Other educational, personal and professional factors have not received sufficient empirical attention. This study was designed to test the following five hypotheses that doctors' career satisfaction is associated with: (i) Higher satisfaction with their undergraduate medical education; (ii) Greater academic and clinical competence; (iii) More involvement in teaching and research activities; (iv) Higher orientation toward lifelong learning; and (v) Increased professional accomplishments. A survey was mailed in 2006 to a national sample of 5349 doctors in the United States who graduated from Jefferson Medical College between 1975 and 2000; 3170 (59%) returned completed surveys. Based on responses to a career satisfaction question, doctors were classified into three groups: Highly satisfied (top third, n=1078); moderately satisfied (middle third, n=1031); and least satisfied (bottom third, n=1061). These groups were compared on a number of variables. All five research hypotheses were confirmed. Additionally, no significant association was observed between career satisfaction, age, years in practice, gender, or ethnicity; however, career satisfaction was associated with doctors' specialties. The findings suggest that factors such as satisfaction with medical education, medical school class rank, assessments of clinical competence, teaching, and research activities, orientation toward lifelong learning, and professional accomplishments should be considered for a more comprehensive understanding of doctors' career satisfaction. © Blackwell Publishing Ltd 2010.

  11. Career satisfaction of surgical specialties.

    Science.gov (United States)

    Deshpande, Satish P; Deshpande, Sagar S

    2011-05-01

    To examine the factors that impact career satisfaction for various surgical specialties. An acute shortage of surgeons is anticipated in the future. Career dissatisfaction can make this already difficult situation worse. It is important to understand and address factors that influence career satisfaction of surgeons to prolong tenure of existing surgeons and understand anticipated needs of future surgeons. The Center for Studying Health System Change 2008 Health Tracking Physician Survey data were used in this study. Regression analysis was done to examine the impact of various practice-related factors, compensation-related factors, practice location, extent of minority patient, and various demographics on career satisfaction of various surgical specialties (n = 762). Among practice related factors, although threat of malpractice had a significant negative impact on career satisfaction, ability to provide quality care to patients and time with patients had a significant positive impact on career satisfaction of surgical specialists. Among compensation related factors, income and financial incentives to expand services had a significant positive impact on career satisfaction. Among practice location factors, those who primarily worked in medical schools were significantly more satisfied with their careers than others. Among minority factors, those treating a large proportion of Hispanic patients were significantly less likely to be satisfied with their careers. Ability to provide quality care, time with patients, income, and financial incentives had a significant positive impact on career satisfaction. Similarly, threat of malpractice and high proportion of Hispanic patients had a negative impact on career satisfaction.

  12. Job satisfaction in fisheries compared

    NARCIS (Netherlands)

    Pollnac, R.; Bavinck, M.; Monnereau, I.

    2012-01-01

    This article draws comparative lessons from seven job satisfaction studies on marine capture fishing that were recently carried out in nine countries and three geographical regions—Asia, Africa, and the Caribbean. The seven studies made use of an identical job satisfaction assessment tool and presen

  13. Job Satisfaction: An International Overview

    Science.gov (United States)

    Thurman, J. E.

    1977-01-01

    An international comparison of job satisfaction levels strongly suggests that the idea of job satisfaction as a gauge of well-being at the workplace should be rejected, but that workers' reactions to aspects of their jobs may be meaningful. The article presents data from national surveys of managers, workers, and trade unions to explain this…

  14. On measurement of customer satisfaction

    DEFF Research Database (Denmark)

    Kristensen, Kai; Kanji, Gopal; Dahlgaard, Jens Jørn

    1992-01-01

    Based on a theoretical argument where company profit as a function of total customer satisfaction is maximized, a new system for measuring and balancing customer satisfaction with respect to individual quality characteritics is developed. A proced implementation is suggested and the results...

  15. Body Image Satisfaction among Blacks

    Science.gov (United States)

    Gustat, Jeanette; Carton, Thomas W.; Shahien, Amir A.; Andersen, Lori

    2017-01-01

    Satisfaction with body image is a factor related to health outcomes. The purpose of this study is to examine the relationship between body image satisfaction and body size perception in an urban, Black community sample in New Orleans, Louisiana. Only 42.2% of respondents were satisfied with their body image and 44.1% correctly perceived their body…

  16. Job satisfaction and contingent employment

    NARCIS (Netherlands)

    de Graaf-Zijl, M.

    2012-01-01

    This paper analyses job satisfaction as an aggregate of satisfaction with several job aspects, with special focus on the influence of contingent-employment contracts. Fixed-effect analysis is applied on a longitudinal sample of Dutch employees in four work arrangements: regular, fixed-term, on-call

  17. A Quantitative Comparative Study Measuring Consumer Satisfaction Based on Health Record Format

    Science.gov (United States)

    Moore, Vivianne E.

    2013-01-01

    This research study used a quantitative comparative method to investigate the relationship between consumer satisfaction and communication based on the format of health record. The central problem investigated in this research study related to the format of health record used and consumer satisfaction with care provided and effect on communication…

  18. Divide and concur: A general approach to constraint satisfaction

    CERN Document Server

    Gravel, Simon

    2008-01-01

    Many difficult computational problems involve the simultaneous satisfaction of multiple constraints which are individually easy to satisfy. Such problems occur in diffractive imaging, protein folding, constrained optimization (e.g., spin glasses), and satisfiability testing. We present a simple geometric framework to express and solve such problems and apply it to two benchmarks. In the first application (3SAT, a boolean satisfaction problem), the resulting method exhibits similar performance scaling as a leading context-specific algorithm (walksat). In the second application (sphere packing), the method allowed us to find improved solutions to some old and well-studied optimization problems. Based upon its simplicity and observed efficiency, we argue that this framework provides a competitive alternative to stochastic methods such as simulated annealing.

  19. Patient satisfaction with medical care

    Directory of Open Access Journals (Sweden)

    M. A. Sadovoy

    2017-01-01

    Full Text Available Patients’ evaluation of medical care is becoming more and more important due to expanding patient-centered care. For this purpose a complex index of patient satisfaction with healthcare is used. This parameter reflects the correspondence of actual healthcare services to patient’s expectations that were formed under the influence of cultural, social, economic factors, and personal experience of each patient. Satisfaction is a subjective parameter, thus, a grade of satisfaction is barely connected with quality of healthcare services itself. Moreover, medical organizations should always take into account specific features of each patient, since they can have an influence on customer attitude to medical services.This article comprises the review of publications studying determinants of patient satisfaction. In the course of the study, we analyzed data received by research teams from different countries.According to the review, we made some conclusions. First, determinants of patient satisfaction with healthcare can be divided in two groups. The first group of factors includes patients’ characteristics such as age, gender, ethnical and cultural features. However, researches from different countries revealed that there is a difference in the importance of factors belonging to this group and their influence on satisfaction of certain patient cohorts. The second group includes factors that belong to the process of healthcare services delivery and its organization. Moreover, it was found that patient satisfaction level is changing in a waveform. Thus, medical organization should not only try to increase patient satisfaction level but also maintain it. AS a result, it necessary to monitor patient satisfaction with healthcare services. That is why there is a distinct need for the development of a new tool or adaptation of existing instrument of satisfaction measurement, which would be unitized for all medical organizations in the Russian Federation 

  20. Character profiles and life satisfaction.

    Science.gov (United States)

    Park, Hwanjin; Suh, Byung Seong; Kim, Won Sool; Lee, Hye-Kyung; Park, Seon-Cheol; Lee, Kounseok

    2015-04-01

    There is a surge of interest in subjective well-being (SWB), which concerns how individuals feel about their happiness. Life satisfaction tends to be influenced by individual psychological traits and external social factors. The aim of this study was to examine the relationship between individual character and SWB. Data from 3522 university students were analyzed in this study. Character profiles were evaluated using the Temperament and Character Inventory-Revised Short version (TCI-RS). Life satisfaction was assessed using the Satisfaction with Life Scale (SWLS). All statistical tests regarding the correlations between each character profile and life satisfaction were conducted using ANOVAs, t-tests, multiple linear regression models and correlation analyses. The creative (SCT) profile was associated with the highest levels of life satisfaction, whereas the depressive (sct) profile was associated with the lowest levels of life satisfaction. Additionally, high self-directedness, self-transcendence and cooperation were associated with high life satisfaction. The results of gender-adjusted multiple regression analysis showed that the effects of self-directedness were the strongest in the assessment of one's quality of life, followed by self-transcendence and cooperativeness, in that order. All of the three-character profiles were significantly correlated with one's quality of life, and the character profiles of TCI-RS explained 27.6% of life satisfaction in total. Among the three-character profiles, the self-directedness profile was most associated with life satisfaction. Our study was cross-sectional, and self-reported data from students at a single university were analyzed. The results of this study showed that, among the character profiles, the effects of self-directedness were the strongest for predicting life satisfaction. Copyright © 2014 Elsevier Inc. All rights reserved.

  1. Marketing health care to employees: the structure of employee health care plan satisfaction.

    Science.gov (United States)

    Mascarenhas, O A

    1993-01-01

    Providing cost-contained comprehensive quality health care to maintain healthy and productive employees is a challenging problem for all employers. Using a representative panel of metropolitan employees, the author investigates the internal and external structure of employee satisfaction with company-sponsored health care plans. Employee satisfaction is differentiated into four meaningful groups of health care benefits, whereas its external structure is supported by the traditional satisfaction paradigms of expectation-disconfirmation, attribution, and equity. Despite negative disconfirmation, employees register sufficiently high health care satisfaction levels, which suggests some useful strategies that employers may consider implementing.

  2. Satisfaction with Life among Adolescents from Returned Portuguese Immigrant Families

    Directory of Open Access Journals (Sweden)

    Joana Neto

    2011-12-01

    Full Text Available Abstract: A central construct within the positive psychology literature is satisfaction with life. The aim of this study was to determine the level of satisfaction with life among adolescents from returned immigrant families in Portugal, as well as the background, the intercultural contact and the adaptation factors related thereto. The sample consisted of 615 adolescents (mean age = 16.5 years; SD = 1.4. The mean duration of sojourn in Portugal for the sample was 8.4 (SD = 4.6. They answered a self-report questionnaire. A comparison group involving 217 young Portuguese was also included in the study. Adolescents from returned immigrant families revealed similar levels of satisfaction with life in comparison with peers who have never migrated. The notion that geographic mobility of parents is a primary cause of adaptation problems in their children appears to be incorrect. Predictive factors – demographic, intercultural, and adaptation variables – were significantly linked to the satisfaction with life of youth. Combined, these variables explained 37% of the variance in life satisfaction. The results help us understand which variables are important to target when developing interventions to improve the life satisfaction of adolescents from returned immigrant families.

  3. Hyundai’s Customer Satisfaction Analysis in Azerbaijan Market

    Directory of Open Access Journals (Sweden)

    Khayala Babayeva

    2016-12-01

    Full Text Available In modern economies, level of customer satisfaction is main indicator which intends to show organization’s position in comparison with its competitors. Determining customer satisfaction level allows any organization to detect the problems and gives a way in order to solve such issues. In this article, the aim is to measure the satisfaction level of Hyundai customers in Azerbaijan and for that a survey has been conducted. The research has been implemented on two basis: customer Satisfaction of Hyundai clients on a the car they drive; and b the service they have paid for repairing their car in the service center. Authors have developed confidence interval and hypothesis testing for each outcome from the survey. In addition to these, NPS level of Hyundai has been computed. Those figures help the authors to measure the real population’s satisfaction level. The results of the analysis claim that ultimate amount of customers are dissatisfied with car’s quality. Furthermore most of drivers’ satisfaction level of services which Hyundai provides is satisfactory.

  4. Job satisfaction among hospital nurses revisited: a systematic review.

    Science.gov (United States)

    Lu, Hong; Barriball, K Louise; Zhang, Xian; While, Alison E

    2012-08-01

    The current nursing shortage and high turnover is of great concern in many countries because of its impact upon the efficiency and effectiveness of any healthcare delivery system. Recruitment and retention of nurses are persistent problems associated with job satisfaction. To update review paper published in 2005. This paper analyses 100 papers relating to job satisfaction among hospital nurses derived from systematic searches of seven databases covering English and Chinese language publications 1966-2011 (updating the original paper with 46 additional studies published 2004-2011). Despite varying levels of job satisfaction across studies, sources and effects of job satisfaction were similar. Hospital nurse job satisfaction is closely related to working conditions and the organizational environment, job stress, role conflict and ambiguity, role perception and role content, organizational and professional commitment. More research is required to understand the relative importance of the many identified factors relating to job satisfaction of hospital nurses. It is argued that the absence of a robust causal model reflecting moderators or moderator is undermining the development of interventions to improve nurse retention. Copyright © 2011 Elsevier Ltd. All rights reserved.

  5. Co-Simulation of Networked Embedded Control Systems, a CSP-like process-oriented approach

    NARCIS (Netherlands)

    ten Berge, M.H.; Orlic, B.; Broenink, Johannes F.

    2006-01-01

    Complex control software problems can be solved by using structured design methods that take advantage of hardware abstraction and concurrency. In our lab, a toolchain has been developed that facilitates such a design method. This paper presents two extensions to this toolchain. The first, a distrib

  6. A CSP-based trajectory for designing formally verified embedded control software

    NARCIS (Netherlands)

    Jovanovic, D.S.; Liet, Geert K.; Broenink, Johannes F.

    2005-01-01

    This paper presents in a nutshell a procedure for producing formally verified concurrent software. The design paradigm provides means for translating block-diagrammed models of systems from various problem domains in a graphical notation for process-oriented architectures. Briefly presented CASE

  7. A CSP-Based Trajectory for Designing Formally Verified Embedded Control Software

    NARCIS (Netherlands)

    Jovanovic, Dusko S.; Liet, Geert K.; Broenink, Jan F.

    2005-01-01

    This paper presents in a nutshell a procedure for producing formally verified concurrent software. The design paradigm provides means for translating block-diagrammed models of systems from various problem domains in a graphical notation for process-oriented architectures. Briefly presented CASE too

  8. Relationship of Life Satisfaction and Job Satisfaction among Pakistani Army Soldiers

    Directory of Open Access Journals (Sweden)

    Summaira Naz

    2015-03-01

    Full Text Available The present study had two main objectives; first, to discover the relationships between job satisfaction and life satisfaction in Pakistani army soldiers, second, to find out the age, salary, marital status, and education differences on job satisfaction and life satisfaction in Pakistani army soldiers. In the present study two questionnaires; Job Satisfaction Scale JSS (Macdonald & Maclntyre, 1997 and Satisfaction With Life Scale (Diener, et al., 1985; were administered to a sample (N=400 along with a demographic sheet. The results of the study revealed a significant positive correlation between job satisfaction and life satisfaction of Pakistani army soldiers. The findings of the study also showed a significant age, education, salary, and marital status differences in job satisfaction and life satisfaction. Age, marital status, and salary variables had positive correlation with job satisfaction and life satisfaction but education had a negative association with job satisfaction and life satisfaction

  9. The Research of Cenozoic Migrant Worker Satisfaction

    Institute of Scientific and Technical Information of China (English)

    于海霞

    2010-01-01

    The phenomenon of Cenozoic migrant worker shortage is a realism problem of China's enterprise,and Cenozoic migrant worker has become an important force occupied the social structure.So the study of Cenozoic migrant worker's status and the demand is imperative.Understand employees"both psychological and physiological satisfaction of enterprises'environmental factors,and make some corresponding changes is of great help to reduce the employee turnover rate.This paper commenced to research from the Cenozoic migrant worker's characteristics,analyzed conditions and puts forward the corresponding countermeasures.

  10. Attention-Deficit/Hyperactivity Disorder Symptoms and Life Satisfaction in a Representative Adolescent and Adult Sample.

    Science.gov (United States)

    Hennig, Timo; Koglin, Ute; Schmidt, Sören; Petermann, Franz; Brähler, Elmar

    2017-09-01

    Although it is well documented that attention-deficit/hyperactivity disorder (ADHD) is associated with reduced life satisfaction, the mechanisms that might explain this co-occurrence are unclear. We examined the correlation of ADHD symptoms with life satisfaction and whether this association is mediated by (lacking) social support and depressive symptoms. Self-reported ADHD symptoms, life satisfaction, social support, and depressive symptoms were assessed in a representative, predominantly adult sample from the general population (14-91 years, N = 2517). Attention-deficit/hyperactivity disorder symptoms correlated negatively with life satisfaction (r = -0.41, p life satisfaction. Counteracting problems with social relationships and treating depressive symptoms may help to increase life satisfaction in adults with ADHD symptoms.

  11. An investigation on the effect of cognitive emotion regulation strategies on job satisfaction

    Directory of Open Access Journals (Sweden)

    Somayeh Shahba

    2014-06-01

    Full Text Available This paper examined the effects of cognitive emotion regulation on employees’ job satisfaction. In this survey, Questionnaire and the questions were divided into two categories of cognitive emotion regulation and job satisfaction. To measure cognitive emotion regulation, including unadjusted emotion regulation strategies and adjusted strategies, 36 items questionnaire was used originally developed by Garnefski et al. (2001 [Garnefski, N., Kraaij, V., & Spinhoven, P. (2001. Negative life events, cognitive emotion regulation, and emotional problems. Personality and Individual Differences, 30, 1311–1327.]. The questionnaires were distributed among 340 staff employee of the Islamic Republic of Iran Customs Administration. The results revealed that the adjusted cognitive emotion regulation strategies increase job satisfaction of employees. However, unadjusted cognitive emotion regulation strategies reduce employees' job satisfaction. Moreover, among adjusted emotion regulation strategies, put in perspective strategy did not have significant effect on job satisfaction and rumination, had no significant effect on job satisfaction, which was one of the unadjusted strategies of cognitive emotion regulation.

  12. Group cohesion and organizational commitment: protective factors for nurse residents' job satisfaction, compassion fatigue, compassion satisfaction, and burnout.

    Science.gov (United States)

    Li, Angela; Early, Sean F; Mahrer, Nicole E; Klaristenfeld, Jessica L; Gold, Jeffrey I

    2014-01-01

    Stress can have detrimental effects on nurse residents' levels of job satisfaction, compassion, fatigue, and burnout. This can lead to high turnover rates and poor quality of care among novice nurses. Therefore, it is critical to identify protective factors to prevent the onset of negative nurse outcomes (compassion fatigue, burnout, and job dissatisfaction) and to promote positive nurse outcomes (job satisfaction, compassion satisfaction). This study aimed to determine whether factors such as group cohesion and organizational commitment would be protective and moderate the association between stress exposure and posttraumatic stress symptoms and other negative nurse outcomes, thus facilitating positive outcomes. Findings showed that group cohesion was effective in moderating the negative effects of current stress exposure and posttraumatic stress symptoms on negative nurse outcomes, specifically on increased compassion fatigue and burnout, and reduced compassion satisfaction. In addition, organizational commitment was determined to promote positive nurse outcomes such as job satisfaction and compassion satisfaction. The study findings are promising, as retention of quality nurses is a significant problem for hospitals. Nurse managers and hospital administrators should be aware of the benefits of group cohesion and organizational commitment and strive to make the promotion of these factors a priority.

  13. Visitors Satisfaction Measurement in Czech Tourism

    Directory of Open Access Journals (Sweden)

    Tomáš Sadílek

    2015-01-01

    Full Text Available The paper deals with describing the method of satisfaction measurement as a one of marketing techniques used for detecting visitors’ satisfaction in tourist regions in the Czech Republic. In the treatise, we try to analyse visitors’ satisfaction with the twenty four partial factors affecting total satisfaction. In the theoretical part of the paper, there are described methodological approaches to satisfaction measurement and presented various methods for satisfaction measurement with focus on the Satisfaction Pyramid method which is also used in the field part. Other presented methods are Customer Satisfaction Index, European Customer Satisfaction Model, Importance-Satisfaction Matrix, SERVQUAL Concept and KANO Model. Data have been collected all over the Czech Republic in years 2010 and 2011 twice every year. In the field part there are presented calculations of data and described total satisfaction, Satisfaction Index and partial satisfactions as well as level of satisfaction by tourist regions and correlations between partial satisfactions and total satisfaction which refers to importance of partial factors. Most important factors affecting total satisfaction are public transport, sport equipment, shopping possibilities, children attractions, orientation signage and free time programs.

  14. Integration of concentrated solar power (CSP) and circulating fluidized bed (CFB) power plants - final results of the COMBO-CFB project

    Science.gov (United States)

    Suojanen, Suvi; Hakkarainen, Elina; Kettunen, Ari; Kapela, Jukka; Paldanius, Juha; Tuononen, Minttu; Selek, Istvan; Kovács, Jenö; Tähtinen, Matti

    2017-06-01

    Hybridization of solar energy together with another energy source is an option to provide heat and power reliably on demand. Hybridization allows decreasing combustion related fuel consumption and emissions, assuring stable grid connection and cutting costs of concentrated solar power technology due to shared power production equipment. The research project "Integration of Concentrated Solar Power (CSP) and Circulating Fluidized Bed (CFB) Power Plants" (COMBO-CFB) has been carried out to investigate the technical possibilities and limitations of the concept. The main focus was on the effect of CSP integration on combustion dynamics and on the joint power cycle, and on the interactions of subsystems. The research provides new valuable experimental data and knowhow about dynamic behaviour of CFB combustion under boundary conditions of the hybrid system. Limiting factors for maximum solar share in different hybridization schemes and suggestions for enhancing the performance of the hybrid system are derived.

  15. Price satisfaction and producer loyalty

    DEFF Research Database (Denmark)

    Mutonyi, Sarah; Beukel, Karin; Gyau, Amos

    2016-01-01

    Purpose The purpose of this paper is to investigate which dimensions of price satisfaction influence producers’ trust in buyers and assess the mediating role of such trust in the relationship between price satisfaction and producer loyalty in fresh fruit supply chains. Design/methodology/approach......Purpose The purpose of this paper is to investigate which dimensions of price satisfaction influence producers’ trust in buyers and assess the mediating role of such trust in the relationship between price satisfaction and producer loyalty in fresh fruit supply chains. Design...... reliability, and relative price are dimensions of price satisfaction that affect producers’ trust in the buyer. Moreover, trust between the producer and the buyer is found to be a strong mediator between price satisfaction and producer loyalty. The findings support recent studies about trust and its mediating...... between the multi-dimensional nature of price satisfaction and producer loyalty with trust as a mediating variable in the business-to-business (B2B) context. Although B2B relationships have been shown to be of great importance for smallholders in enhancing business performance with their buyers, little...

  16. HOW CONTEXT AFFECTS COUPLE SATISFACTION?

    Directory of Open Access Journals (Sweden)

    Rozzana Sánchez-Aragón

    2012-12-01

    Full Text Available There are few studies that focus on the influence that contextual aspects have in marital satisfaction (Meléndez, Aleixandre,& Saez, 1993.However, nowadays the reasons for a divorce are related to the actual social situation (Khalfani-Cox, 2009. Thus, the aim of this study is to identify contextual aspects that are associ-ated with marital satisfaction; in order to accomplish this objective, we conducted two studies. The purpose of the first study was to identify recent context aspects that influence marital satisfaction throughout an open question, which was ap-plied to 131 people. The results indicate that the dimensions of economic, labor time, home safety, stress in the environment, and the place where they live influ-ence marital satisfaction. In the second study, based on the information obtained previously, we formed indicators that were applied together with a scale of mari-tal satisfaction to105 couples. The results show that the context is closely related to marital satisfaction. In addition, the results determine that men give greater importance to the economic and employment situation than women do. Overall, this study indicates that sex differences prove that the roles and cultural expecta-tions have remained in the dynamics of the relationship and thus influence the assessment of marital satisfaction.

  17. C(sp2)–C(sp2) cross coupling reaction catalyzed by a palladacycle phosphine complex: A simple and sustainable protocol in aqueous media

    Indian Academy of Sciences (India)

    Seyyed Javad Sabounchei; Marjan Hosseinzadeh

    2015-11-01

    The Heck reactions of various aryl halides with olefins using {[Ph2PCH2PPh2CH=C(O)(C10H7)] PdCl2} as efficient catalyst has been investigated. The mononuclear palladacycle complex showed excellent activity in aqueous phase including the C(sp2)–C(sp2) cross coupling reactions. The advantages of the protocol are high yields, short reaction time, a cleaner reaction profile and notable simplicity.

  18. Polymorphisms in Plasmodium vivax Circumsporozoite Protein (CSP Influence Parasite Burden and Cytokine Balance in a Pre-Amazon Endemic Area from Brazil.

    Directory of Open Access Journals (Sweden)

    Bruno de Paulo Ribeiro

    2016-03-01

    Full Text Available Mechanisms involved in severe P. vivax malaria remain unclear. Parasite polymorphisms, parasite load and host cytokine profile may influence the course of infection. In this study, we investigated the influence of circumsporozoite protein (CSP polymorphisms on parasite load and cytokine profile in patients with vivax malaria. A cross-sectional study was carried out in three cities: São Luís, Cedral and Buriticupu, Maranhão state, Brazil, areas of high prevalence of P. vivax. Interleukin (IL-2, IL-4, IL-10, IL-6, IL-17, tumor necrosis factor alpha (TNF-α, interferon gamma (IFN-γ and transforming growth factor beta (TGF-β were quantified in blood plasma of patients and in supernatants from peripheral blood mononuclear cell (PBMC cultures. Furthermore, the levels of cytokines and parasite load were correlated with VK210, VK247 and P. vivax-like CSP variants. Patients infected with P. vivax showed increased IL-10 and IL-6 levels, which correlated with the parasite load, however, in multiple comparisons, only IL-10 kept this association. A regulatory cytokine profile prevailed in plasma, while an inflammatory profile prevailed in PBMC culture supernatants and these patterns were related to CSP polymorphisms. VK247 infected patients showed higher parasitaemia and IL-6 concentrations, which were not associated to IL-10 anti-inflammatory effect. By contrast, in VK210 patients, these two cytokines showed a strong positive correlation and the parasite load was lower. Patients with the VK210 variant showed a regulatory cytokine profile in plasma, while those infected with the VK247 variant have a predominantly inflammatory cytokine profile and higher parasite loads, which altogether may result in more complications in infection. In conclusion, we propose that CSP polymorphisms is associated to the increase of non-regulated inflammatory immune responses, which in turn may be associated with the outcome of infection.

  19. Polymorphisms in Plasmodium vivax Circumsporozoite Protein (CSP) Influence Parasite Burden and Cytokine Balance in a Pre-Amazon Endemic Area from Brazil.

    Science.gov (United States)

    Ribeiro, Bruno de Paulo; Cassiano, Gustavo Capatti; de Souza, Rodrigo Medeiros; Cysne, Dalila Nunes; Grisotto, Marcos Augusto Grigolin; de Azevedo dos Santos, Ana Paula Silva; Marinho, Cláudio Romero Farias; Machado, Ricardo Luiz Dantas; Nascimento, Flávia Raquel Fernandes

    2016-03-01

    Mechanisms involved in severe P. vivax malaria remain unclear. Parasite polymorphisms, parasite load and host cytokine profile may influence the course of infection. In this study, we investigated the influence of circumsporozoite protein (CSP) polymorphisms on parasite load and cytokine profile in patients with vivax malaria. A cross-sectional study was carried out in three cities: São Luís, Cedral and Buriticupu, Maranhão state, Brazil, areas of high prevalence of P. vivax. Interleukin (IL)-2, IL-4, IL-10, IL-6, IL-17, tumor necrosis factor alpha (TNF-α, interferon gamma (IFN-γ and transforming growth factor beta (TGF-β were quantified in blood plasma of patients and in supernatants from peripheral blood mononuclear cell (PBMC) cultures. Furthermore, the levels of cytokines and parasite load were correlated with VK210, VK247 and P. vivax-like CSP variants. Patients infected with P. vivax showed increased IL-10 and IL-6 levels, which correlated with the parasite load, however, in multiple comparisons, only IL-10 kept this association. A regulatory cytokine profile prevailed in plasma, while an inflammatory profile prevailed in PBMC culture supernatants and these patterns were related to CSP polymorphisms. VK247 infected patients showed higher parasitaemia and IL-6 concentrations, which were not associated to IL-10 anti-inflammatory effect. By contrast, in VK210 patients, these two cytokines showed a strong positive correlation and the parasite load was lower. Patients with the VK210 variant showed a regulatory cytokine profile in plasma, while those infected with the VK247 variant have a predominantly inflammatory cytokine profile and higher parasite loads, which altogether may result in more complications in infection. In conclusion, we propose that CSP polymorphisms is associated to the increase of non-regulated inflammatory immune responses, which in turn may be associated with the outcome of infection.

  20. Draft genome of Kocuria polaris CMS 76or(T) isolated from cyanobacterial mats, McMurdo Dry Valley, Antarctica: an insight into CspA family of proteins from Kocuria polaris CMS 76or(T).

    Science.gov (United States)

    Gundlapally, Sathyanarayana Reddy; Ara, Srinivas; Sisinthy, Shivaji

    2015-10-01

    Kocuria polaris strain CMS 76or(T) is a gram-positive, orange-pigmented bacterium isolated from a cyanobacterial mat sample from a pond located in McMurdo Dry Valley, Antarctica. It is psychrotolerant, orange pigmented, hydrolyses starch and Tween 80 and reduces nitrate. We report the 3.78-Mb genome of K. polaris strain CMS 76or(T), containing 3416 coding sequences, including one each for 5S rRNA, 23S rRNA, 16S rRNA and 47 tRNA genes, and the G+C content of DNA is 72.8%. An investigation of Csp family of proteins from K. polaris strain CMS 76or(T) indicated that it contains three different proteins of CspA (peg.319, peg.2255 and 2832) and the length varied from 67 to 69 amino acids. The three different proteins contain all the signature amino acids and two RNA binding regions that are characteristic of CspA proteins. Further, the CspA from K. polaris strain CMS 76or(T) was different from CspA of four other species of the genus Kocuria, Cryobacterium roopkundense and E. coli indirectly suggesting the role of CspA of K. polaris strain CMS 76or(T) in psychrotolerant growth of the bacterium.

  1. CSP-based chemical kinetics mechanisms simplification strategy for non-premixed combustion: An application to hybrid rocket propulsion

    KAUST Repository

    Ciottoli, Pietro P.

    2017-08-14

    A set of simplified chemical kinetics mechanisms for hybrid rocket applications using gaseous oxygen (GOX) and hydroxyl-terminated polybutadiene (HTPB) is proposed. The starting point is a 561-species, 2538-reactions, detailed chemical kinetics mechanism for hydrocarbon combustion. This mechanism is used for predictions of the oxidation of butadiene, the primary HTPB pyrolysis product. A Computational Singular Perturbation (CSP) based simplification strategy for non-premixed combustion is proposed. The simplification algorithm is fed with the steady-solutions of classical flamelet equations, these being representative of the non-premixed nature of the combustion processes characterizing a hybrid rocket combustion chamber. The adopted flamelet steady-state solutions are obtained employing pure butadiene and gaseous oxygen as fuel and oxidizer boundary conditions, respectively, for a range of imposed values of strain rate and background pressure. Three simplified chemical mechanisms, each comprising less than 20 species, are obtained for three different pressure values, 3, 17, and 36 bar, selected in accordance with an experimental test campaign of lab-scale hybrid rocket static firings. Finally, a comprehensive strategy is shown to provide simplified mechanisms capable of reproducing the main flame features in the whole pressure range considered.

  2. Carboxylate-Assisted C(sp3)–H Activation in Olefin Metathesis-Relevant Ruthenium Complexes

    Science.gov (United States)

    2015-01-01

    The mechanism of C–H activation at metathesis-relevant ruthenium(II) benzylidene complexes was studied both experimentally and computationally. Synthesis of a ruthenium dicarboxylate at a low temperature allowed for direct observation of the C–H activation step, independent of the initial anionic ligand-exchange reactions. A first-order reaction supports an intramolecular concerted metalation–deprotonation mechanism with ΔG⧧298K = 22.2 ± 0.1 kcal·mol–1 for the parent N-adamantyl-N′-mesityl complex. An experimentally determined ΔS⧧ = −5.2 ± 2.6 eu supports a highly ordered transition state for carboxylate-assisted C(sp3)–H activation. Experimental results, including measurement of a large primary kinetic isotope effect (kH/kD = 8.1 ± 1.7), agree closely with a computed six-membered carboxylate-assisted C–H activation mechanism where the deprotonating carboxylate adopts a pseudo-apical geometry, displacing the aryl ether chelate. The rate of cyclometalation was found to be influenced by both the electronics of the assisting carboxylate and the ruthenium ligand environment. PMID:24731019

  3. Online control of a humanoid robot through hand movement imagination using CSP and ECoG based features.

    Science.gov (United States)

    Kapeller, C; Gergondet, P; Kamada, K; Ogawa, H; Takeuchi, F; Ortner, R; Pruckl, R; Kheddar, A; Scharinger, J; Guger, C

    2015-08-01

    Intention recognition through decoding brain activity could lead to a powerful and independent Brain-Computer-Interface (BCI) allowing for intuitive control of devices like robots. A common strategy for realizing such a system is the motor imagery (MI) BCI using electroencephalography (EEG). Changing to invasive recordings like electrocorticography (ECoG) allows extracting very robust features and easy introduction of an idle state, which might simplify the mental task and allow the subject to focus on the environment. Especially for multi-channel recordings like ECoG, common spatial patterns (CSP) provide a powerful tool for feature optimization and dimensionality reduction. This work focuses on an invasive and independent MI BCI that allows triggering from an idle state, and therefore facilitates tele-operation of a humanoid robot. The task was to lift a can with the robot's hand. One subject participated and reached 95.4 % mean online accuracy after six runs of 40 trials. To our knowledge, this is the first online experiment with a MI BCI using CSPs from ECoG signals.

  4. The study of life-satisfaction

    NARCIS (Netherlands)

    R. Veenhoven (Ruut)

    1996-01-01

    textabstractABSTRACT This chapter reviews the literature on life satisfaction. Six questions are considered: 1) What is the point of studying life-satisfaction? 2) What is life-satisfaction? 3) Can life-satisfaction be measured? 4) How satisfied are we? 5) What causes us to be satisfied or dissatisf

  5. The Relationship between Satisfaction with Workplace Training and Overall Job Satisfaction

    Science.gov (United States)

    Schmidt, Steven W.

    2007-01-01

    Opportunities for training and development are paramount in decisions regarding employee career choices. Despite the importance, many research studies on job satisfaction do not address satisfaction with workplace training as an element of overall job satisfaction, and many job satisfaction survey instruments do not include a "satisfaction with…

  6. TRANSFORMATIONAL LEADERSHIP AND EMPLOYEE SATISFACTION

    National Research Council Canada - National Science Library

    Alisa Mujkic; Dzevad Sehic; Zijada Rahimic; Jasmin Jusic

    2014-01-01

      The main purpose of this paper was to carry out an empirical research on whether transformational leadership, in comparison to other contemporary leadership styles, contributes to higher employee satisfaction levels...

  7. Transformational leadership and employee satisfaction

    National Research Council Canada - National Science Library

    Alisa Mujkić; Dževad Šehić; Zijada Rahimić; Jasmin Jusić

    2014-01-01

    The main purpose of this paper was to carry out an empirical research on whether transformational leadership, in comparison to other contemporary leadership styles, contributes to higher employee satisfaction levels...

  8. Consumer satisfaction - an unattainable ideal?

    African Journals Online (AJOL)

    S Blignaut

    purchasing process (and this includes consumer (dis)- satisfaction) .... the field of consumer behaviour and a number of comparable ... used for manufacturing, and the construction and ... furniture and clothing, because possession and use.

  9. Role ambiguity and athlete satisfaction.

    Science.gov (United States)

    Eys, Mark A; Carron, Albert V; Bray, Steven R; Beauchamp, Mark R

    2003-05-01

    The aim of this study was to examine the relationship between athletes' perceptions of role ambiguity and satisfaction. The relationship between these multidimensional constructs was investigated at the beginning and at the end of the season, as well as from early season to end of season. Consistent with the a prioi hypothesis, concurrent analyses revealed lower perceived role ambiguity was associated with higher athlete satisfaction. Specifically, role ambiguity, as represented by the dimension Scope of Responsibilities on offence, was significantly related to the leadership facets of athlete satisfaction (i.e. ability utilization, strategy, and training/instruction) both at the beginning and at the end of the season. However, contrary to expectations, role ambiguity at the beginning of the season was not predictive of athlete satisfaction at the end of the season. The implications of the results are discussed and future research is suggested.

  10. Customer satisfaction and complaint behaviour

    African Journals Online (AJOL)

    kirstam

    must in the eyes of the customer. This could be ... Coping refers to the psychological and behavioural efforts undertaken ... Tshwane region of Gauteng. ... been used successfully to measure consumers' expectations for and satisfaction/.

  11. A comparison of patient satisfaction

    African Journals Online (AJOL)

    2014-09-11

    Sep 11, 2014 ... antenatal care: A comparison of patient satisfaction. Author: ... Methods: A quantitative comparative descriptive design with a Likert-scale measure was used. ..... Qualitative exploratory studies can permit one to ascertain.

  12. Job satisfaction of Asian Americans.

    Science.gov (United States)

    Weaver, C N; Hinson, S

    2000-04-01

    Since Asian Americans have demographic and labor force characteristics more similar to Euro-Americans than African Americans, one might predict that their job satisfaction would be more like the former than the latter. And, because Asian Americans originating from different countries are heterogeneous in language, culture, and recency of immigration, one might predict that they may report obtaining different amounts of satisfaction from their jobs. However, data from 21 nationally representative opinion surveys from 1972 through 1996 suggest the opposite. Asian Americans (n = 199) reported job satisfaction more like African Americans (n = 1,231) than Euro-Americans (n = 10,709), and Asian Americans from China (n = 53), Japan (n = 44), India (n = 55), and the Philippines (n = 47) reported similar job satisfaction. These differences persisted when age, education, occupation, and personal income were held constant.

  13. Organisational Effectiveness and Customer Satisfaction

    National Research Council Canada - National Science Library

    Ambrož, Milan; Praprotnik, Martina

    2008-01-01

    This paper presents a test of the relationship between organizational culture as a crucial indicator of organizational effectiveness and customer satisfaction using service-unit data from two health resorts...

  14. Patient satisfaction surveys and multicollinearity.

    Science.gov (United States)

    Stratmann, W C; Zastowny, T R; Bayer, L R; Adams, E H; Black, G S; Fry, P A

    1994-01-01

    The measurement of patient satisfaction is now an integral part of hospital market research. Just as consumer satisfaction is a function of the extent to which providers do things right, the value of consumer-oriented market research is directly related to whether the research itself is done right. The use of poorly designed consumer research instruments, no matter how well executed, can cause multicollinearity among the independent variables, which, in turn, can result in misleading conclusions.

  15. TOTAL QUALITY CUSTOMER SATISFACTION MODEL

    OpenAIRE

    Jesús Cruz Álvarez; Jesús Fabián López; Carlos Monge Perry

    2014-01-01

    In today’s business environment, all organizations are required to focus on their customers in order to fully understand their needs. There is a need to drive and engage strategic actions in order to close any potentials gaps between customer´s expectations and manufacture´s deliverables. Current customer satisfaction theory appears to be excluded from a holistic model that broadly covers the extent of customer satisfaction concept.This article empathizes the need of an integrated customer sa...

  16. Problems of Younger Workers in the USSR

    Science.gov (United States)

    Kotlyar, Alexander

    1974-01-01

    Young workers, persons from sixteen to thirty years old, have problems relating to occupational choice, vocational guidance, vocational training and other educational opportunities, job satisfaction, and housing, complicating their search for an occupational and social identity. (AG)

  17. DNA prime/Adenovirus boost malaria vaccine encoding P. falciparum CSP and AMA1 induces sterile protection associated with cell-mediated immunity.

    Directory of Open Access Journals (Sweden)

    Ilin Chuang

    Full Text Available BACKGROUND: Gene-based vaccination using prime/boost regimens protects animals and humans against malaria, inducing cell-mediated responses that in animal models target liver stage malaria parasites. We tested a DNA prime/adenovirus boost malaria vaccine in a Phase 1 clinical trial with controlled human malaria infection. METHODOLOGY/PRINCIPAL FINDINGS: The vaccine regimen was three monthly doses of two DNA plasmids (DNA followed four months later by a single boost with two non-replicating human serotype 5 adenovirus vectors (Ad. The constructs encoded genes expressing P. falciparum circumsporozoite protein (CSP and apical membrane antigen-1 (AMA1. The regimen was safe and well-tolerated, with mostly mild adverse events that occurred at the site of injection. Only one AE (diarrhea, possibly related to immunization, was severe (Grade 3, preventing daily activities. Four weeks after the Ad boost, 15 study subjects were challenged with P. falciparum sporozoites by mosquito bite, and four (27% were sterilely protected. Antibody responses by ELISA rose after Ad boost but were low (CSP geometric mean titer 210, range 44-817; AMA1 geometric mean micrograms/milliliter 11.9, range 1.5-102 and were not associated with protection. Ex vivo IFN-γ ELISpot responses after Ad boost were modest (CSP geometric mean spot forming cells/million peripheral blood mononuclear cells 86, range 13-408; AMA1 348, range 88-1270 and were highest in three protected subjects. ELISpot responses to AMA1 were significantly associated with protection (p = 0.019. Flow cytometry identified predominant IFN-γ mono-secreting CD8+ T cell responses in three protected subjects. No subjects with high pre-existing anti-Ad5 neutralizing antibodies were protected but the association was not statistically significant. SIGNIFICANCE: The DNA/Ad regimen provided the highest sterile immunity achieved against malaria following immunization with a gene-based subunit vaccine (27%. Protection

  18. Employee and customer satisfaction in healthcare.

    Science.gov (United States)

    Jackson, Todd; Wood, Ben D

    2010-01-01

    There were multiple factors identified in a literature review that have a relationship to customer satisfaction, customer loyalty, employee satisfaction, and links between employee and customer satisfaction. Some of the factors identified were communication, wait times, perceived value, trust, dissatisfaction with management, changes in the workplace, vision,and fun at work. Managers must identify these topics to ensure customer satisfaction, customer loyalty,and employee satisfaction which will ultimately have a positive impact on their organizations.

  19. 脑机接口中基于WPD和CSP的特征提取%Novel feature extraction method for BCI based on WPD and CSP

    Institute of Scientific and Technical Information of China (English)

    杨帮华; 陆文宇; 何美燕; 刘丽

    2012-01-01

    针对脑机接口(brain computer interface,BCI)中2类运动想象任务的特征提取问题,提出了一种小波包分解(wavelet packet decomposition,WPD)与共同空间模式(common spatial pattern,CSP)相结合的脑电信号特征提取方法.该方法首先选择7个重要导联的脑电(electroencephalograph,EEG)信号,用‘haar’小波基进行三阶WPD分解;然后对每个导联分解后的其中5个子带进行重构,获取相关频域信息;最后对重构后信号利用CSP特征提取,获得六维特征向量.CSP与WPD相结合能够充分利用WPD的时频特性,有效避免CSP要求输入导联数过多、缺乏频域信息等缺陷.对2008年国际BCI竞赛数据和本实验室实验数据,采用该方法进行特征提取,通过概率神经网络(probabilistic neural network,PNN)分类.2种数据源分类正确率分别为92%和80%,相对于单纯的CSP特征提取,正确率分别提高5%和20%.实验结果表明:WPD与CSP相结合的特征提取算法能提取明显的特征,进而提高BCI的识别正确率.%Aiming at the feature extraction of two-class motor imagery tasks in brain computer interfaces (BCIs) , this paper presents an EEG feature extraction method, which combines wavelet packet decomposition ( WPD) and common spatial pattern ( CSP). Firstly, the method selects seven important channels of the EEG ( electroencephalo-graph) signal. The' haar' wavelet basis is used to perform third-order wavelet packet decomposition. And then five decomposed sub-bands for each EEG channel are reconstructed to obtain the relevant frequency domain information. Finally, the feature of the reconstructed signal is extracted using CSP to obtain the six-dimensional feature vector. The combination of CSP and WPD can take the advantage of WPD time-frequency characteristics and avoid the defects that CSP requires too many input channels and lacks frequency information. The 2008 BCI competition data and our laboratory experimental data are processed

  20. Performance and job satisfaction of employees as well as customers satisfaction affect by organizational environment – An applied study on Gumhouria bank, Libya

    Directory of Open Access Journals (Sweden)

    Mohieddin Almanae

    2013-01-01

    Full Text Available This study conducted on Gumhouria Bank and dealing with the role played by the organizational environment on performance and functional satisfaction of the employees. The relevant effect on the customer’s satisfaction indicate that the various elements of the organizational environment have effect on the functional performance and satisfaction of the customers. For raising performance and achieving satisfaction of the employees and customers, elements should be taken into consideration and improvement thereof and solving the problems encountering them. The relationship between the organizational environment and the functional performance is progressive and positive. Whenever the organizational environment increases, the functional performance increases, which, in turn, affects the functional satisfaction degree with the employees. The results indicated effect of the organizational environment on the customer’s satisfaction with the banking services provided. This may be resulting from the effect of organizational environment on the job performance and satisfaction (positive or negative which, in turn led to achieving satisfaction or dissatisfaction of the customers.

  1. Coping mediates the influence of personality on life satisfaction in patients with rheumatic diseases.

    Science.gov (United States)

    Vollmann, Manja; Pukrop, Jörg; Salewski, Christel

    2016-04-01

    A rheumatic disease can severely impair a person's quality of life. The degree of impairment, however, is not closely related to objective indicators of disease severity. This study investigated the influence and the interplay of core psychological factors, i.e., personality and coping, on life satisfaction in patients with rheumatic diseases. Particularly, it was tested whether coping mediates the effects of personality on life satisfaction. In a cross-sectional design, 158 patients diagnosed with a rheumatic disease completed questionnaires assessing the Big 5 personality traits (BFI-10), several disease-related coping strategies (EFK) and life satisfaction (HSWBS). Data were analyzed using a complex multiple mediation analysis with the Big 5 personality traits as predictors, coping strategies as mediators and life satisfaction as outcome. All personality traits and seven of the nine coping strategies were associated with life satisfaction (rs > |0.16|, ps ≤ 0.05). The mediation analysis revealed that personality traits had no direct, but rather indirect effects on life satisfaction through coping. Neuroticism had a negative indirect effect on life satisfaction through less active problem solving and more depressive coping (indirect effects > -0.03, ps satisfaction through more active problem solving, less depressive coping and/or a more active search for social support (indirect effects > 0.06, ps < 0.05). Personality and coping play a role in adjustment to rheumatic diseases. The interplay of these variables should be considered in psychological interventions for patients with rheumatic diseases.

  2. Patient Satisfaction After Scoliosis Surgery

    Directory of Open Access Journals (Sweden)

    V. Tari

    2008-02-01

    Full Text Available Background:Patient satisfaction with the cosmetic result of spinal fusion surgery was studied in 40 cases of adolescent idiopathic scoliosis.Neutral or dissatisfied patients were compared with satisfied patients in several physical and psychological characteristics. The aim of the study was to determine whether adolescents generally report satisfaction with the postoperative appearance of their back after the correction of severe curves and whether preoperative medical and/or psychological factors could distinguish between patients who report satisfaction with the cosmetic surgical result from those who report neutrality or dissatisfaction. Previous reports emphasize the need for medical outcome research that evaluates both patient satisfaction and technical success. Patient satisfaction with spinal surgery has largely been evaluated in retrospective studies and most consistently is related to postoperative cosmesis and degree of curve correction. Methods: 40 adolescents with idiopathic scoliosis without any comorbidity who were 10 years of age or older were studied preoperatively by physical and psychological measurements. Results: Of patients undergoing surgical correction of severe curves, 50% reported satisfaction with the cosmetic result. Neutral or dissatisfied patients were more likely to have a King II or King IV curve types and less correction than satisfied patients. Preoperative psychological difficulties (P< 0.05 and unmet expectations regarding postoperative cosmesis (P<0.05 were more common among neutral or dissatisfied patients. Conclusion: Most adolescents with idiopathic scoliosis expressed satisfaction with the cosmetic surgical result. Preoperative physical characteristics, psychological difficulties, and unrealistic expectations regarding postoperative cosmesis are associated with patient neutrality or dissatisfaction.

  3. House staff nonverbal communication skills and standardized patient satisfaction.

    Science.gov (United States)

    Griffith, Charles H; Wilson, John F; Langer, Shelby; Haist, Steven A

    2003-03-01

    To examine the association of physician nonverbal communication with standardized patient (SP) satisfaction in the context of the "quality" of the interview (i.e., information provided and collected, communication skills). Observational. One university-based internal medicine residency program. Fifty-nine internal medicine residents. INTERVIEWING: The 59 residents were recruited to participate in 3 SP encounters. The scenarios included: 1) a straightforward, primarily "medical" problem (chest pain); 2) a patient with more psychosocial overlay (a depressed patient with a history of sexual abuse); and 3) a counseling encounter (HIV risk factor reduction counseling). Trained SPs rated physician nonverbal behaviors (body lean, open versus closed body posture, eye contact, smiling, tone of voice, nod, facial expressivity) in the 3 encounters. Multiple regression approaches were used to investigate the association of physician nonverbal behavior with patient satisfaction in the context of the "quality" of the interview (SP checklist performance, measures of verbal communication skills), controlling for physician characteristics (gender, postgraduate year). Nonverbal communication skills was an independent predictor of standardized patient satisfaction for all 3 patient stations. The effect sizes were substantial, with nonverbal communication predicting 32% of the variance in patient satisfaction for the chest pain station, 23% of the variance for the depression-sexual abuse station, and 19% of the variance for the HIV counseling station. Better nonverbal communication skills are associated with significantly greater patient satisfaction in a variety of different types of clinical encounters with standardized patients. Formal instruction in nonverbal communication may be an important addition to residency.

  4. Meaningful work and mental health: job satisfaction as a moderator.

    Science.gov (United States)

    Allan, Blake A; Dexter, Chelsea; Kinsey, Rebecca; Parker, Shelby

    2016-11-12

    Depression, anxiety and stress are common problems for modern workers. Although having meaningful work, or work that is significant, facilitates personal growth, and contributes to the greater good, has been linked to better mental health, people's work might also need to be satisfying or enjoyable to improve outcomes. The purpose of the present study was to examine meaningful work's relation to mental health (i.e. depression, anxiety and stress) and investigate job satisfaction as a moderator of this relation. The study hypotheses were tested with a large, diverse sample recruited from an online source. Partially supporting hypotheses, when controlling for job satisfaction, meaningful work negatively correlated with depression but did not have a significant relation with anxiety and stress. Similarly, job satisfaction negatively predicted depression and stress. Furthermore, the relations between meaningful work and both anxiety and stress were moderated by job satisfaction. Specifically, only people perceiving their work as meaningful and satisfying reported less anxiety and stress. Although continued research is needed, employers and employees may have to target both the meaningfulness and job satisfaction to address the issues of stress and anxiety among working adults.

  5. Content Validity and Satisfaction With a Stroke Caregiver Intervention Program

    Science.gov (United States)

    Bakas, Tamilyn; Farran, Carol J.; Austin, Joan K.; Given, Barbara A.; Johnson, Elizabeth A.; Williams, Linda S.

    2017-01-01

    Background and Purpose Establishing evidence of content validity and satisfaction is an integral part of intervention research. The purpose of this article is to describe content validity and satisfaction relative to the Telephone Assessment and Skill-Building Kit (TASK), an 8-week follow-up program based on individualized assessment of stroke caregiver needs. Design and Methods The TASK intervention enables caregivers to develop skills based on assessment of their own needs. During the development of the TASK program, 10 experts rated the validity of the TASK intervention components for accuracy, feasibility, acceptability, and problem relevance. After incorporating feedback from the experts, a randomized controlled clinical trial was instituted using a convenience sample of 40 stroke caregivers to determine satisfaction (usefulness, case of use, and acceptability) with the TASK intervention (n=21) compared with an attention control group (n=19). Data collection occurred between March 2005 and June 2006. Data were analyzed using descriptive statistics, independent sample t tests, and content analysis. Findings Expert ratings on a 1 to 5 scale, with 5 being strongly agree, provided evidence of content validity (accuracy 4.71, feasibility 4.46, acceptability 4.40, problem relevance 4.67). Caregivers in the TASK group scored significantly higher than the attention control group on all satisfaction measures (usefulness p=.02; ease of use p=.02; acceptability p=.05). Qualitative comments from caregivers provided further evidence of satisfaction. Conclusions Evidence of content validity and user satisfaction for the TASK intervention relative to an attention control group was found. Clinical Relevance The TASK program may be a viable telephone-based program that can be implemented by nurses to support family caregivers during the first few months after stroke survivors are discharged home. PMID:19941582

  6. Resolutividade da assistência e satisfação de usuários da Estratégia Saúde da Família Resolutividad de la asistencia y satisfacción de usuarios de la Estrategia Salud de la Familia Problem-solving capacity of assistance and users' satisfaction of the Family Health Strategy

    Directory of Open Access Journals (Sweden)

    Raquel Borba Rosa

    2011-06-01

    aimed to analyze the view of users on problem-solving capacity of assistance in a Family Health Unit and the relation with satisfaction. The quantitative data have been collected through a semi-structured survey. The results showed the fact that always or most of times the service solved the problems of 61.3% of users. The view of users on problem-solving capacity is related with their perception on the solution for their health problems, associated to obtaining forward to specialized service. There is a relationship between always finding resoluteness or most of times and being very satisfied. It is concluded that users' satisfaction and their view on assistance problem-solving capacity contribute to the organization and improvement of health services.

  7. Undergraduate Students' Satisfaction with Hostel and Sense of Attachment to Place: Case Study of University Sains Malaysia

    OpenAIRE

    Fatemeh Khozaei; Ahmad S. Hassan; Zahra Khozaei

    2010-01-01

    Problem statement: Unlike numerous studies have explored residents satisfaction and sense of attachment to housing, little discussion exists on this area addressing the relationship between sense of attachment to place and student housing satisfaction. To fill such a gap, this article was an attempt to investigate undergraduate students level of satisfaction and sense of attachment to place drawn from three ethnics (Malay, Chinese and Indian) living in the hostels of University Sains Malaysia...

  8. Marital Satisfaction and Life Circumstances of Grown Children With Autism Across 7 Years

    Science.gov (United States)

    Hartley, Sigan L.; Barker, Erin T.; Baker, Jason K.; Seltzer, Marsha Mailick; Greenberg, Jan S.

    2013-01-01

    We examined the extent to which marital satisfaction across 7 years in 199 mothers was associated with the characteristics (gender, age, and intellectual disability status) of their adolescent or adult child with an autism spectrum disorder (ASD) and whether fluctuations in marital satisfaction covaried with the child’s autism symptoms, health, behavior problems, and closeness in the parent–child relationship. We also examined the impact of the departure of the adult child out of the family home on mothers’ marital satisfaction. The effect of family context variables including the presence of an additional child with a disability, maternal education, and household income on marital satisfaction were also examined. We found that closeness in the mother–child relationship and household income had a significant effect on level of marital satisfaction, and that variability in the slope of mothers’ marital satisfaction was significantly predicted by fluctuations in the behavior problems of the adolescent or adult child with an ASD. The grown child’s departure out of the family home was not related to change in marital satisfaction. Interventions aimed at managing the behavior problems of adolescents and adults with ASDs may help strengthen parents’ marital relationship. PMID:22866933

  9. From customer satisfaction survey to corrective actions in laboratory services in a university hospital.

    Science.gov (United States)

    Oja, Paula I; Kouri, Timo T; Pakarinen, Arto J

    2006-12-01

    To find out the satisfaction of clinical units with laboratory services in a university hospital, to point out the most important problems and defects in services, to carry out corrective actions, and thereafter to identify the possible changes in satisfaction. and Senior physicians and nurses-in-charge of the clinical units at Oulu University Hospital, Finland. Customer satisfaction survey using a questionnaire was carried out in 2001, indicating the essential aspects of laboratory services. Customer-specific problems were clarified, corrective actions were performed, and the survey was repeated in 2004. In 2001, the highest dissatisfaction rates were recorded for computerized test requesting and reporting, turnaround times of tests, and the schedule of phlebotomy rounds. The old laboratory information system was not amenable to major improvements, and it was renewed in 2004-05. Several clinical units perceived turnaround times to be long, because the tests were ordered as routine despite emergency needs. Instructions about stat requesting were given to these units. However, no changes were evident in the satisfaction level in the 2004 survey. Following negotiations with the clinics, phlebotomy rounds were re-scheduled. This resulted in a distinct increase in satisfaction in 2004. Satisfaction survey is a screening tool that identifies topics of dissatisfaction. Without further clarifications, it is not possible to find out the specific problems of customers and to undertake targeted corrective actions. Customer-specific corrections are rarely seen as improvements in overall satisfaction rates.

  10. Marital satisfaction and life circumstances of grown children with autism across 7 years.

    Science.gov (United States)

    Hartley, Sigan L; Barker, Erin T; Baker, Jason K; Seltzer, Marsha Mailick; Greenberg, Jan S

    2012-10-01

    We examined the extent to which marital satisfaction across 7 years in 199 mothers was associated with the characteristics (gender, age, and intellectual disability status) of their adolescent or adult child with an autism spectrum disorder (ASD) and whether fluctuations in marital satisfaction covaried with the child's autism symptoms, health, behavior problems, and closeness in the parent-child relationship. We also examined the impact of the departure of the adult child out of the family home on mothers' marital satisfaction. The effect of family context variables including the presence of an additional child with a disability, maternal education, and household income on marital satisfaction were also examined. We found that closeness in the mother-child relationship and household income had a significant effect on level of marital satisfaction, and that variability in the slope of mothers' marital satisfaction was significantly predicted by fluctuations in the behavior problems of the adolescent or adult child with an ASD. The grown child's departure out of the family home was not related to change in marital satisfaction. Interventions aimed at managing the behavior problems of adolescents and adults with ASDs may help strengthen parents' marital relationship. (PsycINFO Database Record (c) 2012 APA, all rights reserved).

  11. The effect of job organizational factors on job satisfaction in two automotive industries in Malaysia.

    Science.gov (United States)

    Dawal, Siti Zawiah Md; Taha, Zahari

    2007-12-01

    A methodology is developed in diagnosing the effect of job organizational factors on job satisfaction in two automotive industries in Malaysia. One hundred and seventy male subjects of age 18-40 years with the mean age of 26.8 and standard deviation (SD) of 5.3 years and the mean work experience of 6.5 years and SD of 4.9 years took part in the study. Five job organizational factors were tested in the study including job rotation, work method, training, problem solving and goal setting. A job organization questionnaire was designed and was based on respondents' perception in relation to job satisfaction. The results showed that job organization factors were significantly related to job satisfaction. Job rotation, work method, training and goal setting showed strong correlation with job satisfaction while problem solving had intermediate correlation in the first automotive industry. On the other hand, most job organization factors showed intermediate correlation with job satisfaction in the second automotive industry except the training factor which had low correlation with job satisfaction. These results highlight that job rotation, work methods, problem solving and goal setting are outstanding factors in the study of job satisfaction for automotive industries.

  12. Religion, body satisfaction and dieting.

    Science.gov (United States)

    Kim, Karen Hye-Cheon

    2006-05-01

    Western societal pressures of thinness have assigned worth to the ideal body, contributing to body dissatisfaction and increased dieting. A social factor that may serve as an alternative avenue of worth than the body is religion. Survey data from a community sample (n=546) was collected to examine religion's relationships with body satisfaction and dieting. Religion was significantly related to greater body satisfaction and less dieting, and specifically negative aspects of religion were related to lower body satisfaction and greater dieting. Those utilizing more negative religious coping had lower body satisfaction (women: r=-0.47; men: r=-0.58). Self-esteem was a mediator in these relationships. In women, those reporting higher negative congregational social support were more likely to diet than those reporting lower levels (CI: 2.0; 1.2, 3.5). Overall, religion was related to body satisfaction and dieting, with specifically negative aspects of religion having more consistent and stronger relationships than other components of religion.

  13. Job satisfaction in psychiatric nursing.

    Science.gov (United States)

    Ward, M; Cowman, S

    2007-08-01

    In recent years, mental health services across Europe have undergone major organizational change with a move from institutional to community care. In such a context, the impact of change on the job satisfaction of psychiatric nurses has received little attention in the literature. This paper reports on the job satisfaction of psychiatric nurses and data were collected in 2003. The population of qualified psychiatric nurses (n = 800) working in a defined geographical health board area was surveyed. Methodological triangulation with a between-methods approach was used in the study. Data were collected on job satisfaction using a questionnaire adopted from the Occupational Stress Indicator. A response rate of 346 (43%) was obtained. Focus groups were used to collect qualitative data. Factors influencing levels of job satisfaction predominantly related to the nurses work location. Other factors influencing job satisfaction included choice of work location, work routine, off duty/staff allocation arrangements, teamwork and working environment. The results of the study highlight to employers of psychiatric nurses the importance of work location, including the value of facilitating staff with choices in their working environment, which may influence the recruitment and retention of nurses in mental health services.

  14. Hospitalized Older Adults’ Patient Satisfaction

    Directory of Open Access Journals (Sweden)

    Neale R. Chumbler

    2016-04-01

    Full Text Available This article examines the extent to which older adult patients’ perceptions of inpatient dimensions of care experiences are associated with their overall satisfaction. A secondary objective is to determine if these specific care experiences differed between elderly female and male patients. Patient satisfaction data from 6,021 older patients (65 years of age and older were collected by using the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS Survey through telephone interviews of older patients who were recently discharged. Multiple linear regression analyses with older patients’ HCAHPS dimensions (Communication With Nurses, Communication With Doctors, Responsiveness of Hospital Staff, Communication About Medicines, Cleanliness of the Hospital Environment, and Quietness of Hospital Environment and gender were conducted while controlling for self-rated health status, age, race, and education. Multiple linear regression analysis showed that all of the HCAHPS dimensions were significantly associated with overall satisfaction. Older female patients reported substantially more positive global evaluations than their male counterparts. However, for older male patients, Communication With Doctors was more influential in their ratings of overall satisfaction than for older female patients. For older female patients, Communication With Nurses was more influential in their ratings of overall satisfaction than for older male patients.

  15. Occupant satisfaction with new low-energy houses

    DEFF Research Database (Denmark)

    Knudsen, Henrik Nellemose; Jensen, Ole Michael; Kristensen, Lars

    2012-01-01

    The development and the erection of low-energy buildings have been intensified in recent years. Still, there are only few studies of the energy performance and occupant satisfaction with living in low-energy houses. A questionnaire survey was therefore carried out among occupants of low-energy ho......The development and the erection of low-energy buildings have been intensified in recent years. Still, there are only few studies of the energy performance and occupant satisfaction with living in low-energy houses. A questionnaire survey was therefore carried out among occupants of low......-energy houses. The purpose was to study occupant satisfaction with new low-energy houses concerning i.a. the perceived indoor climate and the technical installations for heating and ventilation. The survey showed an overall satisfaction with the new low-energy houses, but also that there were problems...... that should be addressed to make low-energy houses more attractive to ordinary people. Problems could be that it was too hot in summer and too cold in winter; that there were initial difficulties with the technical installations and that they were difficult to use. A series of recommendations to increase...

  16. The Satisfaction With Life Scale.

    Science.gov (United States)

    Diener, E; Emmons, R A; Larsen, R J; Griffin, S

    1985-02-01

    This article reports the development and validation of a scale to measure global life satisfaction, the Satisfaction With Life Scale (SWLS). Among the various components of subjective well-being, the SWLS is narrowly focused to assess global life satisfaction and does not tap related constructs such as positive affect or loneliness. The SWLS is shown to have favorable psychometric properties, including high internal consistency and high temporal reliability. Scores on the SWLS correlate moderately to highly with other measures of subjective well-being, and correlate predictably with specific personality characteristics. It is noted that the SWLS is Suited for use with different age groups, and other potential uses of the scale are discussed.

  17. [Satisfaction and motivation in nursing].

    Science.gov (United States)

    Antunes, A V; Sant Anna, L R

    1996-01-01

    Something which affects the internal balance of a hospital system is its workers satisfaction/motivation rate. According to observed and discussed facts regarding our professional environment and also according to some authors assessments (Alcântara and Ribas Gomes), it seems that there is an insatisfaction among those people in relation to their chores. Therefore, based on Herzberg et all. two factors theory and more specifically on Maximiano interpretation of that theory, we made a research aiming at verifying the satisfaction and motivation in nurse work; on how satisfied/insatisfied nurses feel in their work, and if there is a relationship between job conditions (hygienic factors) with satisfaction, and between job features (motivation factors) with motivation.

  18. Explaining global job satisfaction by facets of job satisfaction: the Japanese civil servants study.

    Science.gov (United States)

    Tatsuse, Takashi; Sekine, Michikazu

    2011-03-01

    Management of job satisfaction is of growing importance in terms of the maintenance of employees' health. This study aimed to evaluate which and to what extent facets of job satisfaction contributed to global job satisfaction. The participants were 4286 employees aged 18-69 years working in local government in Japan. A questionnaire survey was conducted in 1998-1999. Seven facets of job satisfaction were evaluated. Multiple logistic regression analysis was performed to evaluate which facets of job satisfaction contributed to global job satisfaction. For all employees, all of the facets of job satisfaction significantly contributed to global job satisfaction. Among the facets of job satisfaction, 'being satisfied with interests and skills involved in work' and 'how abilities were used' contributed more strongly to global satisfaction than 'being satisfied with how the section is running', 'co-workers', 'work prospects', 'physical working conditions' and 'payment'. The differing associations of facets of job satisfaction with global job satisfaction did not change substantially in stratified analysis by occupation, with one exception that only three facets of job satisfaction contributed to global job satisfaction in administrative workers. Job satisfaction related to the intrinsic aspects of the job (i.e., 'interests and skills involved in work' and 'how abilities were used') contributed more to global job satisfaction than the other aspects of job satisfaction. Longitudinal research in employees with various occupations may be needed to confirm the results of this study.

  19. The longitudinal association of relationship satisfaction and sexual satisfaction in long-term relationships.

    Science.gov (United States)

    Fallis, Erin E; Rehman, Uzma S; Woody, Erik Z; Purdon, Christine

    2016-10-01

    Several prominent models of relationship satisfaction and sexual satisfaction imply directional relationships between these constructs (e.g., attachment theory, social exchange models of relationship satisfaction, the interpersonal exchange model of sexual satisfaction). Previous research has demonstrated that sexual satisfaction and relationship satisfaction are distinct but correlated constructs, but relatively few studies have examined how they are related over time. Thus, the purpose of this study was to examine this association. A sample of heterosexual couples (N = 113) completed a longitudinal study spanning 2 years. At Times 1 and 2 they completed measures of relationship satisfaction and sexual satisfaction. Data were analyzed according to the principles of the actor-partner interdependence model using structural equation modeling. Significant actor effects were detected such that, for both men and women, one's own earlier sexual satisfaction predicted one's later relationship satisfaction. In contrast, one's own earlier relationship satisfaction did not significantly predict one's subsequent sexual satisfaction. Sexual satisfaction was a stronger predictor of subsequent relationship satisfaction for men than women. There were no significant partner effects. These results contribute to our theoretical understanding of sexuality and sexual satisfaction in the context of long-term relationships by providing support for theories that conceptualize sexual satisfaction as one factor that contributes to relationship satisfaction. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

  20. Community Satisfaction of Sundanese Language Press

    Directory of Open Access Journals (Sweden)

    Parulian Sitompul

    2014-07-01

    Full Text Available The 1960s could be called the golden age of Sunda press. At the present time the press Sunda suffered a setback in a various of activities. While in the middle of advancements in printing and layout technology, Sundanese language press is currently lagging far behind the national press. The research problem is how people's satisfaction to Sundanese language press. Therefore, the purpose of the study was to determine the motive, knowledge, and community satisfaction of the Sundanese language press. Method used is descriptive quantitative. Sample of 50 respondents which is 10% of the entire community reading Sundanese language press in the two districts of Bogor City. The results showed that the communitiy's motivation to read the Sundanese language press because of the Sundanese language used, and used by all members of the family. In addition, community already knows the function of the Sundanese language press. Eventhough it has not met their expectations, but the people are satisfied with the existence of Sundanese language press that they read.

  1. Hydrogen production by the solar-powered hybrid sulfur process: Analysis of the integration of the CSP and chemical plants in selected scenarios

    Science.gov (United States)

    Liberatore, Raffaele; Lanchi, Michela; Turchetti, Luca

    2016-05-01

    The Hybrid Sulfur (HyS) is a water splitting process for hydrogen production powered with high temperature nuclear heat and electric power; among the numerous thermo-chemical and thermo-electro-chemical cycles proposed in the literature, such cycle is considered to have a particularly high potential also if powered by renewable energy. SOL2HY2 (Solar to Hydrogen Hybrid Cycles) is a 3 year research project, co-funded by the Fuel Cells and Hydrogen Joint Undertaking (FCH JU). A significant part of the project activities are devoted to the analysis and optimization of the integration of the solar power plant with the chemical, hydrogen production plant. This work reports a part of the results obtained in such research activity. The analysis presented in this work builds on previous process simulations used to determine the energy requirements of the hydrogen production plant in terms of electric power, medium (550°C) temperature heat. For the supply of medium temperature (MT) heat, a parabolic trough CSP plant using molten salts as heat transfer and storage medium is considered. A central receiver CSP (Concentrated Solar Power) plant is considered to provide high temperature (HT) heat, which is only needed for sulfuric acid decomposition. Finally, electric power is provided by a power block included in the MT solar plant and/or drawn from the grid, depending on the scenario considered. In particular, the analysis presented here focuses on the medium temperature CSP plant, possibly combined with a power block. Different scenarios were analysed by considering plants with different combinations of geographical location and sizing criteria.

  2. Parent Satisfaction and Information (A Customer Satisfaction Survey).

    Science.gov (United States)

    Tuck, Kathy D.

    The District of Columbia public schools sought to obtain an index of "customer satisfaction" from its parents through a study designed to examine their perceptions of their children's schools and school experiences. A survey was developed and pilot tested to ensure content validity and reliability. The survey focused on five areas: (1)…

  3. Transformational leadership, empowerment, and job satisfaction: the mediating role of employee empowerment.

    Science.gov (United States)

    Choi, Sang Long; Goh, Chin Fei; Adam, Muhammad Badrull Hisyam; Tan, Owee Kowang

    2016-12-01

    Recent studies have revealed that nursing staff turnover remains a major problem in emerging economies. In particular, nursing staff turnover in Malaysia remains high due to a lack of job satisfaction. Despite a shortage of healthcare staff, the Malaysian government plans to create 181 000 new healthcare jobs by 2020 through the Economic Transformation Programme (ETP). This study investigated the causal relationships among perceived transformational leadership, empowerment, and job satisfaction among nurses and medical assistants in two selected large private and public hospitals in Malaysia. This study also explored the mediating effect of empowerment between transformational leadership and job satisfaction. This study used a survey to collect data from 200 nursing staff, i.e., nurses and medical assistants, employed by a large private hospital and a public hospital in Malaysia. Respondents were asked to answer 5-point Likert scale questions regarding transformational leadership, employee empowerment, and job satisfaction. Partial least squares-structural equation modeling (PLS-SEM) was used to analyze the measurement models and to estimate parameters in a path model. Statistical analysis was performed to examine whether empowerment mediated the relationship between transformational leadership and job satisfaction. This analysis showed that empowerment mediated the effect of transformational leadership on the job satisfaction in nursing staff. Employee empowerment not only is indispensable for enhancing job satisfaction but also mediates the relationship between transformational leadership and job satisfaction among nursing staff. The results of this research contribute to the literature on job satisfaction in healthcare industries by enhancing the understanding of the influences of empowerment and transformational leadership on job satisfaction among nursing staff. This study offers important policy insight for healthcare managers who seek to increase job

  4. Efficient synthesis of π-conjugated molecules incorporating fluorinated phenylene units through palladium-catalyzed iterative C(sp2–H bond arylations

    Directory of Open Access Journals (Sweden)

    Fatiha Abdelmalek

    2015-10-01

    Full Text Available We report herein a two or three step synthesis of fluorinated π-conjugated oligomers through iterative C–H bond arylations. Palladium-catalyzed desulfitative arylation of heteroarenes allowed in a first step the synthesis of fluoroaryl-heteroarene units in high yields. Then, the next steps involve direct arylation with aryl bromides catalyzed by PdCl(C3H5(dppb to afford triad or tetrad heteroaromatic compounds via regioselective activation of C(sp2–H bonds.

  5. IgG2 antibodies against a clinical grade Plasmodium falciparum CSP vaccine antigen associate with protection against transgenic sporozoite challenge in mice.

    Directory of Open Access Journals (Sweden)

    Robert Schwenk

    Full Text Available The availability of a highly purified and well characterized circumsporozoite protein (CSP is essential to improve upon the partial success of recombinant CSP-based malaria vaccine candidates. Soluble, near full-length, Plasmodium falciparum CSP vaccine antigen (CS/D was produced in E. coli under bio-production conditions that comply with current Good Manufacturing Practices (cGMP. A mouse immunogenicity study was conducted using a stable oil-in-water emulsion (SE of CS/D in combination with the Toll-Like Receptor 4 (TLR4 agonist Glucopyranosyl Lipid A (GLA/SE, or one of two TLR7/8 agonists: R848 (un-conjugated or 3M-051 (covalently conjugated. Compared to Alum and SE, GLA/SE induced higher CS/D specific antibody response in Balb/c mice. Subclass analysis showed higher IgG2:IgG1 ratio of GLA/SE induced antibodies as compared to Alum and SE. TLR synergy was not observed when soluble R848 was mixed with GLA/SE. Antibody response of 3M051 formulations in Balb/c was similar to GLA/SE, except for the higher IgG2:IgG1 ratio and a trend towards higher T cell responses in 3M051 containing groups. However, no synergistic enhancement of antibody and T cell response was evident when 3M051 conjugate was mixed with GLA/SE. In C57Bl/6 mice, CS/D adjuvanted with 3M051/SE or GLA/SE induced higher CSP repeat specific titers compared to SE. While, 3M051 induced antibodies had high IgG2c:IgG1 ratio, GLA/SE promoted high levels of both IgG1 and IgG2c. GLA/SE also induced more potent T-cell responses compared to SE in two independent C57/BL6 vaccination studies, suggesting a balanced and productive T(H1/T(H2 response. GLA and 3M-051 similarly enhanced the protective efficacy of CS/D against challenge with a transgenic P. berghei parasite and most importantly, high levels of cytophilic IgG2 antibodies were associated with protection in this model. Our data indicated that the cGMP-grade, soluble CS/D antigen combined with the TLR4-containing adjuvant GLA/SE warrants

  6. Response of Vibrio cholerae to Low-Temperature Shifts: CspV Regulation of Type VI Secretion, Biofilm Formation, and Association with Zooplankton

    Science.gov (United States)

    Townsley, Loni; Sison Mangus, Marilou P.; Mehic, Sanjin

    2016-01-01

    ABSTRACT The ability to sense and adapt to temperature fluctuation is critical to the aquatic survival, transmission, and infectivity of Vibrio cholerae, the causative agent of the disease cholera. Little information is available on the physiological changes that occur when V. cholerae experiences temperature shifts. The genome-wide transcriptional profile of V. cholerae upon a shift in human body temperature (37°C) to lower temperatures, 15°C and 25°C, which mimic those found in the aquatic environment, was determined. Differentially expressed genes included those involved in the cold shock response, biofilm formation, type VI secretion, and virulence. Analysis of a mutant lacking the cold shock gene cspV, which was upregulated >50-fold upon a low-temperature shift, revealed that it regulates genes involved in biofilm formation and type VI secretion. CspV controls biofilm formation through modulation of the second messenger cyclic diguanylate and regulates type VI-mediated interspecies killing in a temperature-dependent manner. Furthermore, a strain lacking cspV had significant defects for attachment and type VI-mediated killing on the surface of the aquatic crustacean Daphnia magna. Collectively, these studies reveal that cspV is a major regulator of the temperature downshift response and plays an important role in controlling cellular processes crucial to the infectious cycle of V. cholerae. IMPORTANCE Little is known about how human pathogens respond and adapt to ever-changing parameters of natural habitats outside the human host and how environmental adaptation alters dissemination. Vibrio cholerae, the causative agent of the severe diarrheal disease cholera, experiences fluctuations in temperature in its natural aquatic habitats and during the infection process. Furthermore, temperature is a critical environmental signal governing the occurrence of V. cholerae and cholera outbreaks. In this study, we showed that V. cholerae reprograms its transcriptome in

  7. Development and implementation of a dynamic TES dispatch control component in a PV-CSP techno-economic performance modelling tool

    Science.gov (United States)

    Hansson, Linus; Guédez, Rafael; Larchet, Kevin; Laumert, Bjorn

    2017-06-01

    The dispatchability offered by thermal energy storage (TES) in concentrated solar power (CSP) and solar hybrid plants based on such technology presents the most important difference compared to power generation based only on photovoltaics (PV). This has also been one reason for recent hybridization efforts of the two technologies and the creation of Power Purchase Agreement (PPA) payment schemes based on offering higher payment multiples during daily hours of higher (peak or priority) demand. Recent studies involving plant-level thermal energy storage control strategies are however to a large extent based on pre-determined approaches, thereby not taking into account the actual dynamics of thermal energy storage system operation. In this study, the implementation of a dynamic dispatch strategy in the form of a TRNSYS controller for hybrid PV-CSP plants in the power-plant modelling tool DYESOPT is presented. In doing this it was attempted to gauge the benefits of incorporating a day-ahead approach to dispatch control compared to a fully pre-determined approach determining hourly dispatch only once prior to annual simulation. By implementing a dynamic strategy, it was found possible to enhance technical and economic performance for CSP-only plants designed for peaking operation and featuring low values of the solar multiple. This was achieved by enhancing dispatch control, primarily by taking storage levels at the beginning of every simulation day into account. The sequential prediction of the TES level could therefore be improved, notably for evaluated plants without integrated PV, for which the predicted storage levels deviated less than when PV was present in the design. While also featuring dispatch performance gains, optimal plant configurations for hybrid PV-CSP was found to present a trade-off in economic performance in the form of an increase in break-even electricity price when using the dynamic strategy which was offset to some extent by a reduction in

  8. Unique regioselectivity in the C(sp3)-H α-alkylation of amines: the benzoxazole moiety as a removable directing group.

    Science.gov (United States)

    Lahm, Günther; Opatz, Till

    2014-08-15

    The benzoxazol-2-yl- substituent was found to act as a removable activating and directing group in the Ir-catalyzed alkylation of C(sp(3))-H bonds adjacent to nitrogen in secondary amines. It can be easily introduced by oxidative coupling or by an SNAr reaction, and it can be removed by hydroxide or by hydride reduction. For 1,2,3,4-tetrahydroisoquinolines, activation exclusively takes place in the 3-position. A variety of activated as well as unactivated terminal olefins are suitable reaction partners.

  9. Measuring Air Force Contracting customer satisfaction

    OpenAIRE

    Davis, Jamie

    2015-01-01

    Approved for public release; distribution is unlimited This research gathers background information to identify which customer satisfaction elements should be included in a standardized tool that measures the level of customer satisfaction for AF Contracting’s external and internal customers. This research conducts a comprehensive literature review of the prominent customer satisfaction trends, while exploring the idiosyncrasies of customer satisfaction that are unique to AF Contracting. F...

  10. ANTESEDEN DAN KONSEKUENSI DARI PRICE SATISFACTION

    OpenAIRE

    Steven Dharma; Asep Hermawan

    2012-01-01

    The purpose of this paper is to explore the antecedents and consequents of price satisfaction. It argues that price satisfaction is composed of several dimensions (price transparency, pricequality ratio, relative price, price confidence, price reliability, and price fairness) and that companies should consider these dimensions when monitoring customer price satisfaction. Based on a theoretical discussion of the price dimensions, a questionnaire is developed that measures customer satisfact...

  11. The impact of stress and support on direct care workers' job satisfaction.

    Science.gov (United States)

    Ejaz, Farida K; Noelker, Linda S; Menne, Heather L; Bagaka's, Joshua G

    2008-07-01

    This research applies a stress and support conceptual model to investigate the effects of background characteristics, personal and job-related stressors, and workplace support on direct care workers' (DCW) job satisfaction. Researchers collected survey data from 644 DCWs in 49 long-term care (LTC) organizations. The DCWs included nurse assistants in nursing homes, resident assistants in assisted living facilities, and home care aides in home health agencies. We examined the influence of components of the LTC stress and support model on DCW job satisfaction. Initially, we ran a multiple regression analysis by entering individual-level DCW predictors with job satisfaction as the outcome. Subsequently, we used hierarchical linear modeling to examine the influence of organizational factors on DCW job satisfaction after controlling for significant individual-level DCW variables. Components of the model explained 51% of the variance in DCW job satisfaction. Background characteristics of DCWs were less important than personal stressors (e.g., depression), job-related stressors (e.g., continuing education), and social support (e.g., interactions with others) in predicting job satisfaction. Results from hierarchical linear modeling analysis showed that nursing homes compared to the two other types of LTC organizations had lower average DCW job satisfaction rates, as did organizations offering lower minimum hourly rates and those reporting turnover problems. Study findings underscore the importance of targeting both DCW-level and organizational-level factors to increase DCW job satisfaction.

  12. Impact of Job Satisfaction on Greek Nurses' Health-Related Quality of Life.

    Science.gov (United States)

    Ioannou, Panagiotis; Katsikavali, Vassiliki; Galanis, Petros; Velonakis, Emmanuel; Papadatou, Danai; Sourtzi, Panayota

    2015-12-01

    Employee job satisfaction and its relationship with health and quality of life has been an issue of major concern over the past decades. Nurses experience difficult working conditions that affect their job satisfaction, health, and quality of life. A cross-sectional study was undertaken in three general hospitals and their respective health centers. Stratified random sampling by level of education was used, and 508 nurses and nursing assistants were included. A self-administered anonymous questionnaire, which included the Measure of Job Satisfaction, the 36-item Short Form Health Survey, as well as demographic details, education, and work conditions data, was used. Greek nurses were found to be dissatisfied with their job according to the total score of the job satisfaction scale, although personal satisfaction and satisfaction with support had had higher scores. Their general health was reported as average, because of physical and mental health problems, low vitality, low energy, and increased physical pain. Multivariate linear regression analysis revealed that males and those wishing to stay in the job had higher physical and mental health. Increased job satisfaction was related to increased physical and mental health. Although Greek nurses are not satisfied with their work, those with high levels of job satisfaction had better health-related quality of life. The findings suggest that improvement of the work environment would contribute to a healthier and more satisfied nursing workforce.

  13. The influence of achievement before, during and after medical school on physician job satisfaction.

    Science.gov (United States)

    Schmit Jongbloed, Lodewijk J; Schönrock-Adema, Johanna; Borleffs, Jan C C; Stewart, Roy E; Cohen-Schotanus, Janke

    2014-10-01

    In this longitudinal study, we investigated the relationship between physicians' prior achievements (before, during and after medical school) and job satisfaction, and tested the two lines of reasoning that prior achievements influence job satisfaction positively or negatively, respectively. The participants were graduates who started their medical training in 1982 (n = 147), 1983 (n = 154), 1992 (n = 143) and 1993 (n = 153). We operationalised job satisfaction as satisfaction (on a 10-point scale) with 13 cognitive, affective and instrumental aspects of the participants' jobs. The measures of achievement before, during and after medical school included pre-university grade point average, study progress and a residency position in the specialty of first choice, respectively. We included the effect of curriculum type (problem-based learning versus traditional), gender and years of experience as moderator variables. Higher achievers before and during medical school were more satisfied about their income (β = .152, p job satisfaction. The direction of the influences depended on the job satisfaction aspect in question, which indicates that it is important to distinguish between aspects of job satisfaction. To optimize job satisfaction of high achievers, it is important for graduates to obtain their preferred specialty. Furthermore, it is vital to provide them with enough opportunities for further development.

  14. Longitudinal Associations Among Relationship Satisfaction, Sexual Satisfaction, and Frequency of Sex in Early Marriage.

    Science.gov (United States)

    McNulty, James K; Wenner, Carolyn A; Fisher, Terri D

    2016-01-01

    The current research used two 8-wave longitudinal studies spanning the first 4-5 years of 207 marriages to examine the potential bidirectional associations among marital satisfaction, sexual satisfaction, and frequency of sex. All three variables declined over time, though the rate of decline in each variable became increasingly less steep. Controlling for these changes, own marital and sexual satisfaction were bidirectionally positively associated with one another; higher levels of marital satisfaction at one wave of assessment predicted more positive changes in sexual satisfaction from that assessment to the next and higher levels of sexual satisfaction at one wave of assessment predicted more positive changes in marital satisfaction from that assessment to the next. Likewise, own sexual satisfaction and frequency of sex were bidirectionally positively associated with one another. Additionally, partner sexual satisfaction positively predicted changes in frequency of sex and own sexual satisfaction among husbands, yet partner marital satisfaction negatively predicted changes in both frequency of sex and own sexual satisfaction. Controlling these associations, marital satisfaction did not directly predict changes in frequency of sex or vice versa. Only the association between partner sexual satisfaction and changes in own sexual satisfaction varied across men and women and none of the key effects varied across the studies. These findings suggest that sexual and relationship satisfaction are intricately intertwined and thus that interventions to treat and prevent marital distress may benefit by targeting the sexual relationship and interventions to treat and prevent sexual distress in marriage may benefit by targeting the marital relationship.

  15. Is the job satisfaction of primary care team members associated with patient satisfaction?

    NARCIS (Netherlands)

    Szecsenyi, J.; Goetz, K.; Campbell, S.M.; Broge, B.; Reuschenbach, B.; Wensing, M.J.P.

    2011-01-01

    BACKGROUND Previous research has shown a correlation between physician job satisfaction and patient satisfaction with quality of care, but the connection between job satisfaction of other primary care team members and patient satisfaction is yet unclear. OBJECTIVE To evaluate whether there is an

  16. Personality, Career Satisfaction, and Life Satisfaction: Test of a Directional Model

    Science.gov (United States)

    Lounsbury, John W.; Park, Soo-Hee; Sundstrom, Eric; Williamson, Jeanine M.; Pemberton, Anne E.

    2004-01-01

    A conceptual model proposing paths from personality traits to career satisfaction and life satisfaction and from career satisfaction to life satisfaction was evaluated in a field study by structural equations modeling using LISREL 8. Participants were a convenience sample of 1,352 information science professionals. An exploratory maximum…

  17. The Relationship between Satisfaction with Workplace Training and Overall Job Satisfaction

    Science.gov (United States)

    Schmidt, Steven W.

    2007-01-01

    Opportunities for training and development are paramount in decisions regarding employee career choices. Despite the importance, many research studies on job satisfaction do not address satisfaction with workplace training as an element of overall job satisfaction, and many job satisfaction survey instruments do not include a "satisfaction…

  18. Is the job satisfaction of primary care team members associated with patient satisfaction?

    NARCIS (Netherlands)

    Szecsenyi, J.; Goetz, K.; Campbell, S.M.; Broge, B.; Reuschenbach, B.; Wensing, M.J.P.

    2011-01-01

    BACKGROUND Previous research has shown a correlation between physician job satisfaction and patient satisfaction with quality of care, but the connection between job satisfaction of other primary care team members and patient satisfaction is yet unclear. OBJECTIVE To evaluate whether there is an ass

  19. Correlates of Adolescent Life Satisfaction.

    Science.gov (United States)

    Feldman, Mary Jane; Gaier, Eugene L.

    1980-01-01

    Substantial differences among late adolescents who possessed different levels of satisfaction with life showed up in relation to leisure time enjoyment, religious involvement, health, friendships, and personal efficacy. Almost one-third of the sample studied had not come through their adolescences feeling good about their lives. (Author/GC)

  20. Emotional Satisfaction of Customer Contacts

    NARCIS (Netherlands)

    Güngör, Hüseyin

    2007-01-01

    For marketing and customer services researchers and professionals who are interested in customer contacts, customer satisfaction and loyalty issues. Contact centers are playing a pivotal role in customer services of the 21st century. Nevertheless, despite their growing importance and presence, conta

  1. Customer Satisfaction with Training Programs.

    Science.gov (United States)

    Mulder, Martin

    2001-01-01

    A model for evaluating customer satisfaction with training programs was tested with training purchasers. The model confirmed two types of projects: training aimed at achieving learning results and at changing job performance. The model did not fit for training intended to support organizational change. (Contains 31 references.) (SK)

  2. Emotional Satisfaction of Customer Contacts

    NARCIS (Netherlands)

    Güngör, Hüseyin

    2007-01-01

    For marketing and customer services researchers and professionals who are interested in customer contacts, customer satisfaction and loyalty issues. Contact centers are playing a pivotal role in customer services of the 21st century. Nevertheless, despite their growing importance and presence,

  3. Emotional Satisfaction of Customer Contacts

    NARCIS (Netherlands)

    Güngör, Hüseyin

    2007-01-01

    For marketing and customer services researchers and professionals who are interested in customer contacts, customer satisfaction and loyalty issues. Contact centers are playing a pivotal role in customer services of the 21st century. Nevertheless, despite their growing importance and presence, conta

  4. Customer satisfaction with training programs

    NARCIS (Netherlands)

    Mulder, M.

    2001-01-01

    In this contribution, a model of evaluation of customer satisfaction about training programs is described. The model is developed and implemented for an association of training companies. The evaluation has been conducted by an independent organisation to enhance the thrustworthiness of the evaluati

  5. ORGANIZATION PERFORMANCE AND EMPLOYEE SATISFACTION

    OpenAIRE

    Milica Jakšiæ, Miloš Jakšiæ

    2014-01-01

    Employee satisfaction related to their job, possibilities of career development, mechanisms of performance measurement and reward, as remuneration systems are of growing importance. Expectations of highly educated workforce continuously increase, so recruiting and retention of such workers becomes key factor of success for modern companies. Success of companies is expected to change together with employee saticfaction.

  6. Customer Satisfaction with Training Programs.

    Science.gov (United States)

    Mulder, Martin

    2001-01-01

    A model for evaluating customer satisfaction with training programs was tested with training purchasers. The model confirmed two types of projects: training aimed at achieving learning results and at changing job performance. The model did not fit for training intended to support organizational change. (Contains 31 references.) (SK)

  7. Job Satisfaction and Dissatisfaction Among Journalism Graduates

    Science.gov (United States)

    Shaver, Harold C.

    1978-01-01

    A survey of the degree of job satisfaction felt by 404 news/editorial and advertising graduates indicates that journalism graduates develop satisfaction and dissatisfaction with jobs in a manner usually consistent with Frederick Herzberg's motivation-hygiene theory of job satisfaction. (GW)

  8. The Multivariate Nature of Professional Job Satisfaction.

    Science.gov (United States)

    Wood, Donald A.; LeBold, William K.

    Discussed are two theories of professional job satisfaction--(1) unidimensional and (2) multidimensional with special reference to Herzberg's two factor theory. A national sample of over 3,000 engineering graduates responded to a questionnaire and satisfaction index. Analysis of results revealed that job satisfaction is multidimensional. Job…

  9. A General Measure of User Computing Satisfaction.

    Science.gov (United States)

    Harrison, Allison W.; Rainer, R. Kelly, Jr.

    1996-01-01

    Discussion of user satisfaction with computers focuses on a study that tested the construct validity and reliability of the End User Computing Satisfaction Instrument. Highlights include the relationship of user satisfaction and computer attitudes, computer anxiety, computer skill, and computer usage; and implications for the management of…

  10. Life Satisfaction of the Elderly American Indian.

    Science.gov (United States)

    Johnson, Freddie L.; And Others

    1984-01-01

    Examines generally high life satisfaction of 58 elderly reservation American Indians and its relationship to selected internal and external environmental factors. Suggests that internal environmental variables may be useful indicators of life satisfaction and that subjective measures of life satisfaction may be more predictive of mental health…

  11. Job Satisfaction among Women in Advertising.

    Science.gov (United States)

    Pokrywczynski, James V.; Crowley, John H.

    A study examined job satisfaction among women in advertising. Subjects were 48 female respondents from a mail survey of membership of a Midwest advertising club. Two types of job satisfaction measures were used: items from the Minnesota Satisfaction Questionnaire and the action tendency scales developed by E. Locke. The results showed a high level…

  12. Citizen Satisfaction: Political Voice and Cognitive Biases

    DEFF Research Database (Denmark)

    Larsen, Morten Hjortskov

    and the citizen satisfaction literature and combining them with more recent psychological approaches to attitude formation and evaluation this dissertation seeks answers to some of the recurring questions of citizen satisfaction such as: Does satisfaction depend on expectations and how are expectations formed...

  13. The Changing Distribution of Job Satisfaction.

    Science.gov (United States)

    Hamermesh, Daniel S.

    2001-01-01

    Satisfaction among male workers in upper earnings brackets increased from 1978-1996; similar results were found in Germany for 1984-1996. Little relationship between job satisfaction and persistent earnings inequality was found. Recent shocks to earnings mattered more to current and recent changes in satisfaction than did distant shocks.…

  14. Job Satisfaction and Dissatisfaction Among Journalism Graduates

    Science.gov (United States)

    Shaver, Harold C.

    1978-01-01

    A survey of the degree of job satisfaction felt by 404 news/editorial and advertising graduates indicates that journalism graduates develop satisfaction and dissatisfaction with jobs in a manner usually consistent with Frederick Herzberg's motivation-hygiene theory of job satisfaction. (GW)

  15. Sex Roles and Sexual Satisfaction in Women.

    Science.gov (United States)

    Kirkpatrick, Carole Schmidt

    1980-01-01

    Investigates the relationships among sexual satisfaction, femininity, and feminism in women. Data were collected via questionnaires completed by 199 couples. A positive association was found between sexual satisfaction and feminism. There was no significant relationship between sexual satisfaction and femininity. (Author)

  16. Examining Student Satisfaction of Online Statistics Courses

    Science.gov (United States)

    Al-Asfour, Ahmed

    2012-01-01

    This survey research of 55 participants was completed at a private university to determine students' satisfaction of statistic online courses. The study explored the students' satisfaction of course components: online statistics, online instruction, communication, assessment, and overall student satisfaction. The findings showed a positive…

  17. An Overview of Customer Satisfaction Models.

    Science.gov (United States)

    Hom, Willard

    This document is a report on how California community colleges can incorporate customer satisfaction models and theories from business to better serve students. Emphasis is given to two levels of customer satisfaction: macro- and micro-models. Macro-models look at how customer satisfaction relates to other elements or priorities of community…

  18. A Bio-Inspired Method for the Constrained Shortest Path Problem

    Directory of Open Access Journals (Sweden)

    Hongping Wang

    2014-01-01

    optimization, crew scheduling, network routing and so on. It is an open issue since it is a NP-hard problem. In this paper, we propose an innovative method which is based on the internal mechanism of the adaptive amoeba algorithm. The proposed method is divided into two parts. In the first part, we employ the original amoeba algorithm to solve the shortest path problem in directed networks. In the second part, we combine the Physarum algorithm with a bio-inspired rule to deal with the CSP. Finally, by comparing the results with other method using an examples in DCLC problem, we demonstrate the accuracy of the proposed method.

  19. Assessment of older adults' satisfaction with adult protective services investigation and assistance.

    Science.gov (United States)

    Booker, James G; Breaux, Mary; Abada, Sharon; Xia, Rui; Burnett, Jason

    2017-05-12

    This study examined elder self-neglect client satisfaction with services provided by an Adult Protective Services (APS) program. A total of 77 community-dwelling older adults with APS-substantiated self-neglect responded to the standardized and widely used 8-item Client Satisfaction Questionnaire. Approximately 75% of the participants reported being satisfied with the overall services. They felt that the services provided were responsive to their need(s) and helped them deal with their problem(s). Greater than 80% responded that they would refer a friend, would utilize APS in the future if necessary, and were at least satisfied with the amount of help received. The extent to which their needs were met received the lowest satisfaction scores. Future studies are needed to examine elder self-neglect client satisfaction in relation to specific services.

  20. Career Satisfaction and Willingness to Contribute to Malaysian Economy: Skilled Migrants in Malaysia

    Directory of Open Access Journals (Sweden)

    Chuie-Hong TAN

    2010-05-01

    Full Text Available This article examines the effects of immigrants’ perceptions of their contribution to the host country, access to equal opportunities and government support on their career satisfaction. Results suggested that expatriates’ willingness to contribute to the host country have a significant positive association with their career satisfaction. Expatriates’ positive perceptions on equal opportunities to be successful are also significantly related directly to their career satisfaction. Results support the view that the expatriates’ optimistic perceptions towards the host country will enhance the quality of their career undertakings. Government should adopt a light touch towards the problem, by providing entry relaxation for them and promoting Malaysia as an attractive working and living environment.

  1. A Method of Computing Minimal Hitting Sets Using CSP%利用CSP求解极小碰集的方法

    Institute of Scientific and Technical Information of China (English)

    王艺源; 欧阳丹彤; 张立明; 张永刚

    2015-01-01

    基于模型诊断是人工智能领域中具有挑战性的问题,包含了很多人工智能中的关键问题,其研究对整个人工智能领域起着重要推动作用。在基于模型诊断中,候选诊断结果通常由所有极小冲突集对应的所有极小碰集所描述,求出所有极小碰集是其核心问题之一。提出一种将极小碰集问题转换为约束满足问题的方法,该方法调用成熟的CSP求解器进行求解,扩展了约束可满足问题的应用领域。首次提出hard‐冲突集和sof t‐冲突集的概念,并给出利用所提的方法分别求解具有一些特征的极小碰集:小于固定长度、不含特定元素及包含hard‐冲突集和sof t‐冲突集。实验结果表明,提出的方法易于实现、扩展性强,对于特定类型极小碰集问题的求解效率较高。%Model‐based diagnosis (MBD ) is an important challenge and touchstone for artificial intelligence (AI) and plays an important role on studying the w hole field of AI ,for revealing a lot of AI technical problems .In MBD ,candidate diagnostic results are generally described by all minimal hitting sets from all minimal conflict sets .Computing the minimal hitting sets is one of the core problems in this process .In addition ,many practical problems can be converted to minimal hitting sets by some methods ,such as the student course selection problem .In this paper ,a new method is proposed to convert minimal hitting sets problems into constraint satisfaction problems and then call a state‐of‐the‐art CSP‐solver to compute ,which extends the application areas of constraint satisfaction problems .Moreover ,the concepts of hard‐conflict sets and soft‐conflict sets are proposed at the first time . Then this paper applies this new method to compute minimal hitting sets which have some features :less than a fixed length ,not including specific elements ,and including hard‐conflict sets and soft

  2. The Relationship between Job Variables of Life Satisfaction and Marital Satisfaction of Lecturers

    OpenAIRE

    ÇELİK, Metehan; TÜMKAYA, Songül

    2012-01-01

    The purpose of this study was to examine the relationship between the job variables of life satisfaction and marital satisfaction of lecturers. It is descriptive study comparing the marital satisfaction and life satisfaction in terms of gender, academic status, working year and working hours. The sample of the study consisted of voluntary and married 119 lecturers (40 female, 79 male). Data collection instruments were Marital Adjustment Scale and Life Satisfaction Scale. In terms of gender va...

  3. Top-down or button-up? The reciprocal longitudinal relationship between athletes’ team satisfaction and life satisfaction

    OpenAIRE

    Chen, Lung Hung; Wu, Chia-Huei; Lin, Shin-Huei; Ye, Yun-Ci

    2017-01-01

    The present study aims to explore the relationship between athletes’ team satisfaction and their life satisfaction. Drawing on the top-down theory (i.e., overall satisfaction predicts domain satisfaction) and bottom-up theory (i.e., overall satisfaction is predicted by domain satisfaction) of subjective well-being, the authors propose that a reciprocal longitudinal relationship exists between athletes’ team satisfaction and their life satisfaction. A three-wave longitudinal study is conducted...

  4. SVONAR : a new quantitative method for studying learner satisfaction

    OpenAIRE

    Peter Kokol; Slavko Cvetek; Marko Kokol; Petra Kokol; Matej Urbas

    2012-01-01

    We investigated students’ feelings and well-being during the lesson. We were working on a problem of how to adjust teaching in the secondary school and achieve that students will feel as good as possible and better follow the instruction. A hypothesis was set that, by measuring the desired length of lesson and factors which influence lesson length, we can measure and influence student satisfaction. Based on this hypothesis we investigated the factors which have influence on lesson length in a...

  5. Factors influencing professional life satisfaction among neurologists.

    Science.gov (United States)

    Teixeira-Poit, Stephanie M; Halpern, Michael T; Kane, Heather L; Keating, Michael; Olmsted, Murrey

    2017-06-19

    Predicted shortages in the supply of neurologists may limit patients' access to and quality of care for neurological disorders. Retaining neurologists already in practice provides one opportunity to support the overall supply of practicing neurologists. Understanding factors associated with professional life satisfaction (and dissatisfaction) and implementing policies to enhance satisfaction may encourage neurologists to remain in clinical practice. In this paper, we present results from the first study examining factors associated with professional life satisfaction among a large sample of U.S, neurologists. We collaborated with the AAN to survey a sample of U.S. neurologists about their professional life satisfaction. Analyses examined the association of physician and practice characteristics with aspects of professional life satisfaction, including satisfaction with their career in medicine, medical specialty, current position, relationship with colleagues, relationship with patients, work/life balance, and pay. The study population consisted of 625 neurologists. In multivariate regression analyses, no single group or population stratum indicated high (or low) responses to all aspects of satisfaction. Older neurologists reported higher satisfaction with career, specialty, and relationship with patients than younger neurologists. Female neurologists had significantly lower satisfaction with pay than male neurologists. Neurologists who spent more time in research and teaching had greater satisfaction with specialty, relationship with colleagues, and relationship with patients than those spending no time in research. Neurologists who practiced in small cities/rural areas reported lower satisfaction across multiple dimensions than those practicing in large urban areas. Neurologists in solo practice had greater satisfaction with the relationship with their patients, but lower satisfaction with pay. Satisfaction is a multidimensional construct that is associated with

  6. The Key Components of Job Satisfaction in Malaysian Water Utility Industry

    OpenAIRE

    Khalizani Khalid; Hanisah M. Salim; Siew-Phaik Loke; Khalisanni Khalid

    2011-01-01

    Problem statement: This study aimed to examine the impacts of employees rewards and employees motivation on employees job satisfaction between public and private water utility organization in Malaysia. Approach: A total of 689 employees from both sectors participated. While hierarchical regression analysis was conducted to test the relationship between employees rewards, employees motivation and employees job satisfaction, gap analysis was utilized to determine the si...

  7. The Relationship Between Demographics Variables, Emotional Intelligence, Communication Effectiveness, Motivation, and Job Satisfaction

    OpenAIRE

    2011-01-01

    What seems to still be the main concern for managers and employees in the organization world across the globe is communication effectiveness. The problem to be addressed in this study was the lack of motivation and job satisfaction in educational administrations of Iran. Upon reviewing various literatures on this subject, it was found that emotional intelligence is one of the most vital factors that help sustain communication effectiveness and job satisfaction. The researcher upon having a de...

  8. Review of Thermal Materials for CSP Plants and LCOE Evaluation for Performance Improvement using Chilean Strategic Minerals: Lithium Salts and Copper Foams

    Directory of Open Access Journals (Sweden)

    Gustavo Cáceres

    2016-01-01

    Full Text Available The improvement of solar thermal technologies in emerging economies like Chile is particularly attractive because the country is endowed with one of the most consistently high solar potentials, lithium and copper reserves. In recent years, growing interests for lithium based salts and copper foams in application of thermal technologies could change the landscape of Chile transforming its lithium reserves and copper availability into competitive energy produced in the region. This study reviews the technical advantages of using lithium based salts—applied as heat storage media and heat transfer fluid—and copper foam/Phase Change Materials (PCM alternatives—applied as heat storage media—within tower and parabolic trough Concentrated Solar Power (CSP plants, and presents a first systematic evaluation of the costs of these alternatives based on real plant data. The methodology applied is based on material data base compilation of price and technical properties, selection of CSP plant and estimation of amount of required material, and analysis of Levelized Cost of Electricity (LCOE. Results confirm that some lithium based salts are effective in reducing the amount of required material and costs for the Thermal Energy Storage (TES systems for both plant cases, with savings of up to 68% and 4.14% in tons of salts and LCOE, respectively. Copper foam/PCM composites significantly increase thermal conductivity, decreasing the volume of the TES system, but costs of implementation are still higher than traditional options.

  9. capA, a cspA-like gene that encodes a cold acclimation protein in the psychrotrophic bacterium Arthrobacter globiformis SI55.

    Science.gov (United States)

    Berger, F; Normand, P; Potier, P

    1997-09-01

    By use of Arthrobacter globiformis SI55, a psychrotrophic bacterium capable of growth between -5 and +32 degrees C, we cloned and sequenced capA, a gene homologous to cspA encoding the major cold shock protein in Escherichia coli. The deduced protein sequence has a high level of identity with the sequences of other CspA-related proteins from various sources, and no particular residue or domain that could be specific to cold-adapted microorganisms emerged. We show that CapA was produced very rapidly following cold shock, but unlike its mesophilic counterparts, it was still expressed during prolonged growth at low temperature. Its synthesis is regulated at the translational level, and we showed that growth resumption following a temperature downshift correlated with CapA expression. Transient inhibitions in protein synthesis during the first stages of the cold shock response severely impaired the subsequent acclimation of A. globiformis SI55 to low temperature and delayed CapA expression. The cold shock response in A. globiformis SI55 is an adaptative process in which CapA may play a crucial role. We suggest that low-temperature acclimation is conditioned mainly by the ability of cells to restore an active translational machinery after cold shock in a process that may be different from that present in mesophiles.

  10. 剖宫产术后子宫疤痕妊娠3例临床分析%Clinical analysis on 3 cases of CSP

    Institute of Scientific and Technical Information of China (English)

    闻彩萍

    2012-01-01

      Caesarean section pregnancy (CSP) is a rare eccyesis and one of the long-term complications after caesarean section. Because of no special symptoms, it is always to misdiagnose to miscarriage or cervical pregnancy. It is treated by regional injection with MTX50mg under ultrasound B, combined with mifepristone orally. When regional flow decreased, the uterus was cleared and uterectomy was taken when necessary.%  子宫切口疤痕妊娠(CSP)是一种少见的异位妊娠,是剖宫产严重的远期并发症之一,早期表现无特异性,常误诊为流产,宫颈妊娠。治疗方法为在 B 超监测下局部注射 MTX50mg,结合口服米非司酮,在局部血流减少的情况下行清宫术,对症处理,必要时行子宫切除术。

  11. Branch and bound algorithms to solve semiring constraint satisfaction problems

    CSIR Research Space (South Africa)

    Leenen, L

    2008-12-01

    Full Text Available ., Montanari, U., Rossi, F.: Semiring-based constraint solving and optimization. Journal of the ACM 44(2) (1997) 201{236. 3. Delgado, A., Olarte, C., Perez, J., Ruede, C.: Implementing semiring-based con- straints using Mozart. In: Proceedings of MOZ 2004...

  12. Attribute correlates of hospital outpatient satisfaction.

    Science.gov (United States)

    Krueckeberg, H F; Hubbert, A

    1995-01-01

    Customer satisfaction (patient satisfaction) with hospital outpatient or ambulatory services is an important factor in influencing patient patronage and loyalty. Based on an empirical study, this article examines the attributes of the ambulatory care experience which were significantly associated with the level of satisfaction resulting from the most recent hospital ambulatory visit. This study focuses on identifying attributes of ambulatory services. This article brings to the health care marketing literature information on ambulatory satisfaction comparable to that which has been contributed to the literature regarding satisfaction with physician and hospital experiences.

  13. Nickel-Catalyzed Aminoxylation of Inert Aliphatic C(sp(3))-H Bonds with Stable Nitroxyl Radicals under Air: One-Pot Route to α-Formyl Acid Derivatives.

    Science.gov (United States)

    Wang, Chunxia; Zhang, Luoqiang; You, Jingsong

    2017-04-07

    Nickel-catalyzed aminoxylation of an unactivated C(sp(3))-H bond with a stable nitroxyl radical has been accomplished for the first time to offer various N-alkoxyamine derivatives, which further enables a one-pot approach to α-formyl acid derivatives. The aminoxylation process reported also provides direct evidence for the oxidative addition of a cyclometallic intermediate with a free radical, which is helpful for the reaction-mechanism study in transition-metal-catalyzed functionalization of inert C(sp(3))-H bonds.

  14. [Life satisfaction and related socio-demographic factors during female midlife].

    Science.gov (United States)

    Cuadros, José Luis; Pérez-Roncero, Gonzalo R; López-Baena, María Teresa; Cuadros-Celorrio, Angela M; Fernández-Alonso, Ana María

    2014-01-01

    To assess life satisfaction and related factors in middle-aged Spanish women. This was a cross-sectional study including 235 women aged 40 to 65, living in Granada (Spain), healthy companions of patients visiting the obstetrics and gynecology clinics. They completed the Diener Satisfaction with Life Scale, the Menopause Rating Scale, the Perceived Stress Scale, the Insomnia Severity Index and a sociodemographic questionnaire containing personal and partner data. Internal consistency of each tool was also calculated. Almost two-thirds (61.3%) of the women were postmenopausal, and 43.8% had abdominal obesity, 36.6% had insomnia, 18.7% had poor menopause-related quality of life, 31.9% performed regular exercise, and 5.1% had severe financial problems. Life satisfaction showed significant positive correlations (Spearman's test) with female and male age, and inverse correlations with menopause-related quality of life, perceived stress and insomnia. In the multiple linear regression analysis, high life satisfaction is positively correlated with having a partner who performed exercise, and inversely with having work problems, perceived stress and the suspicion of partner infidelity. These factors explained 40% of the variance of the multiple regression analysis for life satisfaction in middle-aged women. Life satisfaction is a construct related to perceived stress, work problems, and having a partner, while aspects of menopause and general health had no significant influence. Copyright © 2014 Elsevier España, S.L.U. All rights reserved.

  15. Knowledge, compliance, and satisfaction: an evaluation of the SIMPLE program.

    Science.gov (United States)

    Rivera-Sárate, Sacha; González-Cordero, Myriam L; Gutiérrez-Collazo, Luz M; Ríos-Motta, Ruth

    2009-11-01

    Evaluate the increase in medication use knowledge, participants' compliance, and satisfaction with the pharmacist through the SIMPLE program (Sepa [Know] Información correcta sobre [Correct information about] Medicinas [Medicines], Pregunte [Ask], Lea la etiqueta [Read the label], y Evite problemas [and Avoid problems]). Quasi-experimental type using a convenience sample. Community pharmacies in Puerto Rico. 60 years of age or older in need of education for appropriate use of medications, using three or more medications for chronic diseases, were functional, and signed an informed consent and privacy agreement. A total of 316 elderly were enrolled. Complete documentation for the six encounters was obtained for 250 participants. The program was implemented through six encounters between pharmacists and participants in community pharmacies. Medication use knowledge and participants' compliance were measured by analyzing the baseline data and follow-up encounters. Participants' satisfaction with the pharmacist was evaluated using the Satisfaction With Pharmacist (SWiP) scale. Medication use knowledge, participant's compliance, and satisfaction with the pharmacist. Compliance improved from 55.2% before the program to 90.0% after the program. Knowledge of medication use improved from 36.8% before the program to 94.4% after the program. There was an increase in the "very much" response for all items in the SWiP scale. An increase in knowledge and compliance with medication therapy by the participants was observed after participation in the program. Participant-pharmacist relationship was reaffirmed and enhanced after participation in the program.

  16. IMPROVISATION OF SEEKER SATISFACTION IN YAHOO! COMMUNITY QUESTION ANSWERING PORTAL

    Directory of Open Access Journals (Sweden)

    K. Latha

    2011-01-01

    Full Text Available One popular Community question answering (CQA site, Yahoo! Answers, had attracted 120 million users worldwide, and had 400 million answers to questions available. A typical characteristic of such sites is that they allow anyone to post or answer any questions on any subject. Question Answering Community has emerged as popular, and often effective, means of information seeking on the web. By posting questions, for other participants to answer, information seekers can obtain specific answers to their questions. However, CQA is not always effective: in some cases, a user may obtain a perfect answer within minutes, and in others it may require hours and sometimes days until a satisfactory answer is contributed. We investigate the problem of predicting information seeker satisfaction in yahoo collaborative question answering communities, where we attempt to predict whether a question author will be satisfied with the answers submitted by the community participants. Our experimental results, obtained from a large scale evaluation over thousands of real questions and user ratings, demonstrate the feasibility of modeling and predicting asker satisfaction. We complement our results with a thorough investigation of the interactions and information seeking patterns in question answering communities that correlate with information seeker satisfaction. We also explore automatic ranking, creating abstract from retrieved answers, and history updation, which aims to provide users with what they want or need without explicitly ask them for user satisfaction. Our system could be useful for a variety of applications, such as answer selection, user feedback analysis, and ranking.

  17. Franchisees' level of satisfaction with the franchise relationship

    Directory of Open Access Journals (Sweden)

    Gerhard J Van Wyk

    2009-12-01

    Full Text Available Problem investigated and objectives: Franchisees often complain that franchisors do not meet their needs, and are generally viewed as being unhappy with the franchise relationship between franchisees and franchisors. The aim of this paper is to investigate the level of satisfaction of franchisees with the franchise relationship, including the following elements: franchisee independence, support with the selection of a distribution point, allocation of geographical trading areas, support with the design and layout of distribution points, comprehensive training programmes, the provision of continuous market and product information and operational support, and advertising and financial support, including systems for bookkeeping. Approach: The data represents two groups of the same franchise, namely franchisees operating for two years and less as franchisees and franchisees who have been operating for longer than two years as franchisees. The extent to which these two groups view the relationship elements differently will be examined. Findings: The findings indicate that both groups had a high level of satisfaction with the franchise relationship between franchisees and franchisors, with the exception of identified opportunities, which could be further developed in order to increase the franchisees' level of satisfaction with the franchise relationship between franchisees and franchisors. Conclusion: In view of the results of this research, it was concluded that the franchisees of the selected franchisor in the franchise industry displayed a high level of satisfaction with the franchise relationship between franchisors and franchisees.

  18. Occupational stress and constructive thinking: health and job satisfaction.

    Science.gov (United States)

    Stacciarini, Jeanne-Marie R; Tróccoli, Bartholomeu Torres

    2004-06-01

    Occupational stress is associated with specific situations, characteristics of the work environment, and individual perceptions and reactions in the context of the workplace, but many nursing studies of occupational stress have tended to analyse aspects related to the job itself. In Brazil nursing is acknowledged as a stressful occupation whose stresses are generally associated with the job itself, while the effects of personal characteristics on an individual's response to occupational stress are dismissed. The aim of this paper is to describe: (1) occupational stress, job satisfaction and state of health in Brazilian nurses, and (2) the relationship of these variables to a constructive thinking coping style. A correlational study was performed during 1999 with 461 nurses recruited from the public health and education system in the Federal District of Brazil. Instruments used were the Nursing Stress Inventory, Constructive Thinking Inventory, subscales of the Occupational Stress Indicator, and a researcher-designed questionnaire. Normal distributions were found for occupational stress, state of health (physical and psychological), and job satisfaction. Results suggest that nurses have fewer psychological health problems and similar job satisfaction compared with other Brazilian government white-collar workers. Occupational stress was directly associated with state of health, and inversely associated with global constructive thinking and job satisfaction. Brazilian nurses in this study seem to have adapted satisfactorily to their profession, but the finding that constructive thinking was significantly related to psychological ill-health, occupational stress and physical ill-health highlights a need to value individual coping styles in the work environment.

  19. [Burnout and job satisfaction among nursing professionals].

    Science.gov (United States)

    Figueiredo-Ferraz, Hugo; Grau-Alberola, Ester; Gil-Monte, Pedro R; García-Juesas, Juan A

    2012-05-01

    The purpose of this study was to examine the relationship between burnout and job satisfaction among nursing professionals. The sample consisted of 316 staff nurses. The study was longitudinal, and not randomized. The gap between Time 1 (T1) and Time 2 (T2) was one year. Hierarchical regression analysis showed empirical evidence of the significant and negative effect of burnout (i.e., Emotional exhaustion and Depersonalization dimensions) at T1 on job satisfaction in T2. Significant results were also obtained that showed the influence of job satisfaction at T1 on burnout at T2 (i.e., Depersonalization dimension). The study concludes that there is a bidirectional and longitudinal relationship between burnout and job satisfaction. However, longitudinal effects of burnout at T1 on job satisfaction on T2 (i.e., burnout as antecedent of job satisfaction) are stronger than vice-versa (i.e., job satisfaction as antecedent of burnout).

  20. The dynamic process of life satisfaction.

    Science.gov (United States)

    Heller, Daniel; Watson, David; Ilies, Remus

    2006-10-01

    Drawing from the Cognitive Affective Personality System (Mischel & Shoda, 1995, 1998), we argue for a need to examine within-individual variation in life satisfaction. Thus, employing a diary study of 76 fully employed, married adults we examined the magnitude, antecedents, and consequences of intra-individual variation in life satisfaction. Our findings establish a substantial amount of intra-individual variation, comparable to other personal evaluations assessed with a state approach (e.g., self-esteem), but less than that observed with major mood dimensions. In addition, concurrent changes in life satisfaction were systematically related to fluctuations in job and marital satisfaction; however, contrary to prediction, our results did not support a cross-level moderating role of Neuroticism in these associations. Our findings also lend support for the lagged influence of life satisfaction on next-day domain satisfaction ratings. Taken together, our findings demonstrate the systematic nature and importance of within-subject variation in life satisfaction.