Survey of Distributed Decision

We survey the recent distributed computing literature on checking whether a given distributed system configuration satisfies a given boolean predicate, i.e., whether the configuration is legal or illegal w.r.t. that predicate. We consider classical distributed computing environments, including mostly synchronous fault-free network computing (LOCAL and CONGEST models), but also asynchronous crash-prone shared-memory computing (WAIT-FREE model), and mobile computing (FSYNC model)

Measuring sponsorship effects on consumer purchasing intentions

In this paper the role of sponsorship in achieving the managerial goals of a firm is studied. In addition, it is examined whether sponsorship can be attributed to the Public Relation Theory and Practice. A survey is conducted and a questionnaire was distributed to consumers living in Athens in order to examine whether firms, which use sponsorship as a strategic tool aiming to form relationships with the consumers, actually achieve their goal. The questionnaires which were distributed to the consumers were statistically processed using SPSS. Various aspects which may affect a firm’s managerial decision in undertaking sponsorships are analyzed. The obtained results are also used to investigate whether there is a connection between the organizational goals (related to sponsorship) and consumers’ behavioral/purchasing intentions

Patient Decision Making in Vestibular Schwannoma: A Survey of the Acoustic Neuroma Association.

Objective To assess the decision-making process of patients with vestibular schwannoma (VS). Study Design Patients with VS completed a voluntary survey over a 3-month period. Setting Surveys were distributed online through email, Facebook, and member website. Subjects and Methods All patients had a diagnosis of VS and were members of the Acoustic Neuroma Association (ANA). A total of 789 patients completed the online survey. Results Of the 789 participants, 474 (60%) cited physician recommendation as a significant influential factor in deciding treatment. In our sample, 629 (80%) saw multiple VS specialists and 410 (52%) sought second opinions within the same specialty. Of those who received multiple consults, 242 (59%) of patients reported receiving different opinions regarding treatment. Those undergoing observation spent significantly less time with the physician (41 minutes) compared to surgery (68 minutes) and radiation (60 minutes) patients ( P < .001). A total of 32 (4%) patients stated the physician alone made the decision for treatment, and 29 (4%) felt they did not understand all possible treatment options before final decision was made. Of the 414 patients who underwent surgery, 66 (16%) felt they were pressured by the surgeon to choose surgical treatment. Conclusion Deciding on a proper VS treatment for patients can be complicated and dependent on numerous clinical and individual factors. It is clear that many patients find it important to seek second opinions from other specialties. Moreover, second opinions within the same specialty are common, and the number of neurotologists consulted correlated with higher decision satisfaction

Survey-propagation decimation through distributed local computations

We discuss the implementation of two distributed solvers of the random K-SAT problem, based on some development of the recently introduced survey-propagation (SP) algorithm. The first solver, called the "SP diffusion algorithm", diffuses as dynamical information the maximum bias over the system, so that variable nodes can decide to freeze in a self-organized way, each variable making its decision on the basis of purely local information. The second solver, called the "SP reinforcement algorithm", makes use of time-dependent external forcing messages on each variable, which let the variables get completely polarized in the direction of a solution at the end of a single convergence. Both methods allow us to find a solution of the random 3-SAT problem in a range of parameters comparable with the best previously described serialized solvers. The simulated time of convergence towards a solution (if these solvers were implemented on a distributed device) grows as log(N).Comment: 18 pages, 10 figure

Emergency surgery and Limitation of therapeutic effort in relation to neurologic deterioration in elderly patients – a survey of European surgeons

Background. In emergency surgery, a very heterogeneous approach is required in the decision making process, especially when considering the patient’s postoperative quality of life as well as medical, ethical, and legal factors. In some cases, the presence of an Advance Directive (AD) form may potentially help resolve the surgeon’s dilemma. Objectives. The primary objective of this survey was to investigate the opinions of surgeons across a representative cross-section of European countries regarding the decision making process using a specific case scenario so as to identify similarities and differences in practice. A secondary objective was to identify the possibility of establishing a more uniform approach and best practice. Method. A survey was conducted of surgeons from a range of European countries. Questionnaires were designed to obtain an overview of decision making in relation to the Limitation of Therapeutic Effort (LTE) using a specific case study and the level of awareness and practical use of ADs. Surveys were distributed via email to the members of the ESTES (European Society for Trauma and Emergency Surgery) and AEC (Association of Spanish surgeons), with voluntary, anonymous participation. Conclusions. Clear and additional support in the form of legal and ethical guidance with clinical protocols for surgical practice in such case scenarios is necessary. Wider use of ADs, together with education about their role and support for patients and relatives, would benefit the type of patient described in our scenario. A multidisciplinary team should play a more active role in decision making in order to avoid surgical procedures that are potentially futile. The concepts of LTE and Quality of life need a broader understanding among surgeons as well as more consistent application

Potential applications of simulation modelling techniques in healthcare: lessons learned from aerospace and military

The Aerospace and Military areas are to do with complex missions and situations. Modelling and Simulation (M&S) has been applied in many areas of defence ranging from space sciences, satellite engineering to multi-warfare (air warfare, undersea warfare), air & missile defence, acquisition, tactical military trainings & exercises, national security analysis and strategic decision making & planning, etc. The application of simulation modelling techniques in healthcare would improve the provision of healthcare services; however, their application has been much relatively feeble in the healthcare sector as compared to the defence sector. This paper presents results from a systematic literature survey on applications of modelling simulation techniques in the Aerospace & Military. The knowledge gained or lessons learned from the survey were finally used to analyze the potential applications of the simulation modelling techniques to the healthcare sector. Results show that in the defence sector, Distributed Simulation has now become a widely adopted technique. However, System Dynamics (SD) and Discrete Event Simulation (DSE) have also gained relative attention. From this survey it becomes clear that various simulation modelling techniques are useful for specific purposes and have potential applications in the healthcare sector

Home buyers' purchase decision framework for Klang Valley, Malaysia

To solve the property overhang issues in Malaysian housing market, housing developers require answers and solutions for housing attributes and services to increase their sales. However, previous researchers only focused on one aspect while studying house buyers' purchase-decision. So, to overcome the problems of property overhang and low satisfaction-level, this research aims to investigate the housingpurchase factors, homebuyers' demographic, purchase decision and satisfaction. The chosen research method is Quantitative method as there is a large sample of population. Finally, it has developed a Home Buyers' Purchase Decision Framework for the home buyers in Klang Valley. The researcher has collected data using SurveyMonkey, an online survey tool and has developed a questionnaire specifically to Klang Valley residents for their opinions on housing purchase factors, purchase decision and post-purchase satisfaction. A total of 417 questionnaires were returned from the 2,000 distributed. Then, the data was analyzed using logistic regression, multivariate analysis of variance and multiple linear regression. This result is then validated by 24 respondents to increase the accuracy. The findings show that home buyers’ purchase decision are influenced by all house purchase factors: house structure, spaces, finance, location, and neighbourhood. However, gender, marital status, and family income of home buyer do not influence house purchase decision and financial factors do not have significant influence on home buyers' satisfaction. The results will make contributions to the Malaysian residential housing industry, give the housing developers a wider comprehension of their consumers and lay a foundation for the housing industry to improve. For the recent years, this research is the only known study that develops homebuyers' purchase-decision framework for Klang Valley housing market. Thus, this study contributes to the knowledge of homebuyers decision-making processes for the housing market in Malaysia

The Matanuska-Susitna Borough Community Survey, 2009: A Sourcebook of Community Attitudes

The Matanuska-Susitna Borough Community Survey (Mat-Su Survey) is a cooperative research effort between the Justice Center at University of Alaska Anchorage (UAA) and the Matanuska-Susitna Borough which asked Mat-Su Borough residents to evaluate the quality of Borough services, provide opinions about Borough decision-making, and sum up their perceptions about a range of issues relevant to the present and future of the Mat-Su community. The survey was distributed to 2,733 residents of the Mat-Su Borough in the fall of 2009; a total of 1,406 surveys were returned, for a response rate of 51.6%. The Sourcebook provides results in five major areas: (1) evaluation of current borough services; (2) use of borough facilities; (3) life in Mat-Su neighborhoods; (4) local government access, policies, and practices; and (5) respondent background information.Matanuska-Susitna Borough.Introduction / Executive Summary / SECTION 1: DETAILED BOROUGH-WIDE RESULTS / Evaluation of Current Borough Services / Use of Borough Facilities / Life in Matanuska-Susitna Borough Neighborhoods / Local Government: Access, Policies and Practices / Respondent Background Information / SECTION 2: RESULTS FOR GEOGRAPHIC AREAS WITHIN THE BOROUGH / Evaluation of Current Borough Services / Use of Borough Facilities / Life in Matanuska-Susitna Borough Neighborhoods / Local Government: Access, Policies and Practices / APPENDICES / A. How Averages Were Calculated and How to Interpret Them / B. Questionnair

The Matanuska-Susitna Borough Community Survey, 2007: A Sourcebook of Community Attitudes

The Matanuska-Susitna Borough Community Survey (Mat-Su Survey) was a cooperative effort on the part of Mat-Su College, the University of Alaska-Anchorage (UAA) and the Matanuska-Susitna Borough which asked Mat-Su Borough residents to evaluate the quality of Borough services, provide opinions about Borough decision-making, and sum up their perceptions about a range of issues relevant to the present and future of the Mat-Su community. The survey was distributed to 2,478 residents of the Mat-Su Borough in the spring of 2007; a total of 1,388 surveys were returned, for a response rate of 56.1%. The Sourcebook provides results in five major areas: (1) evaluation of current borough services; (2) use of borough facilities; (3) life in Mat-Su neighborhoods; (4) local government access, policies, and practices; and (5) respondent background information.Matanuska Susitna BoroughIntroduction / Executive Summary / SECTION 1: DETAILED BOROUGH-WIDE RESULTS / Evaluation of Current Borough Services / Use of Borough Facilities / Life in Matanuska-Susitna Borough Neighborhoods / Local Government: Access, Policies and Practices / Respondent Background Information / SECTION 2: RESULTS FOR GEOGRAPHIC AREAS WITHIN THE BOROUGH / Evaluation of Current Borough Services / Use of Borough Facilities / Life in Matanuska-Susitna Borough Neighborhoods / Local Government: Access, Policies and Practices / APPENDIX A: Questionnair

The Matanuska-Susitna Borough Community Survey, 2006: A Sourcebook of Community Attitudes

The Matanuska-Susitna Borough Community Survey (Mat-Su Survey) was a cooperative effort on the part of Mat-Su College, the University of Alaska-Anchorage (UAA) and the Matanuska-Susitna Borough which asked Mat-Su Borough residents to evaluate the quality of Borough services, provide opinions about Borough decision-making, and sum up their perceptions about a range of issues relevant to the present and future of the Mat-Su community. The survey was distributed to every Borough household in the spring of 2006; a total of 2,600 were received, coded, and analyzed for the report. The Sourcebook provides detailed tabular results in six major areas: (1) evaluation of current borough services; (2) use of borough facilities; (3) life in Mat-Su neighborhoods; (4) local government access, policies, and practices; (5) higher education; and (6) respondent background information.Matanuska Susitna BoroughIntroduction / SECTION 1 DETAILED BOROUGH-WIDE RESULTS / Evaluation of Current Borough Services / Use of Borough Facilities / Life in Matanuska-Susitna Borough Neighborhoods / Local Government: Access, Policies and Practices / Higher Education / Respondent Background Information / SECTION 2: RESULTS FOR GEOGRAPHIC AREAS WITHIN THE BOROUGH / Evaluation of Current Borough Services / Use of Borough Facilities / Life in Matanuska-Susitna Borough Neighborhoods / Local Government: Access, Policies and Practices / Higher Education / Respondent Background Information / APPENDIX A: Questionnair