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Search Results: 1 - 10 of 32279 matches for " Peter Muris "
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The rich get richer and the poor get poorer
Ingmar H. A. Franken,Irina Georgieva,Peter Muris,Ap Dijksterhuis
Judgment and Decision Making , 2006,
Abstract: Some studies have found that choices become more risk averse after gains and more risk seeking after losses, although other studies have found the opposite. The latter tend to use hypothetical cases that encourage deliberation. In the current study, we examined the effects of prior gains and losses on a task designed to encourage less reflective decision making, the Iowa Gambling Task (IGT). Fifty participants conducted a manipulated decision-making task in which one group gained money, whereas the other group lost money, followed by the IGT. Participants who experienced a prior monetary loss displayed more risky choice behavior on the IGT than subjects who experienced a prior gain. These effects were not mediated by a positive or negative affect, although the sample size may have been too small to detect a small effect.
A New Scale for Measuring Reward Responsiveness
Ivo Van den Berg,Ingmar H. A. Franken,Peter Muris
Frontiers in Psychology , 2010, DOI: 10.3389/fpsyg.2010.00239
Abstract: Several psychological theories assume that there are two basic brain mechanisms that guide behavior: an avoidance or inhibition system, which is responsive to signals of punishment, and an approach or activation system, which is sensitive to signals of reward. Several self-report scales have been developed to assess the sensitivity to punishment and reward, and these instruments have been shown to be useful in research on personality, psychopathology, and underlying biological substrates. However, it is also true that in particular scales for measuring reward responsiveness (RR) suffer from various inadequacies. Therefore, a new RR scale was developed and subjected to an extensive psychometric evaluation. The results show that this scale measures a single factor, RR that is clearly independent of punishment sensitivity. Further, the data indicated that the internal consistency, convergent validity, discriminant validity, test–retest reliability, and predictive properties of the new scale were all adequate. It can be concluded that the RR scale is a psychometrically sound instrument that may be useful for researchers with interest in the personality construct of RR.
How does asthma influence the daily life of children? Results of focus group interviews
Lisette van den Bemt, Sabine Kooijman, Vinca Linssen, Peter Lucassen, Jean Muris, Gordon Slabbers, Tjard Schermer
Health and Quality of Life Outcomes , 2010, DOI: 10.1186/1477-7525-8-5
Abstract: Primary school-aged asthmatic children were invited to participate in three consecutive focus group sessions. A total of five focus groups were formed. Two reviewers independently 1) identified trends in the statements and relations between HRQL components, 2) clustered the components into a small number of domains and, 3) made a model on asthma-specific HRQL based on the transcribed statements of the children. The results were compared between the two reviewers and resulted in a final model.Asthma influenced the life of the children physically, emotionally and socially. The most important components of HRQL were the effects on, and consequences of asthma on peer relationships (e.g., being bullied), the dependence on medication, shortness of breath, cough, limitations in activities and limitations due to the response on cigarette smoke exposure.The outcome of the focus group meetings indicates that asthma influences the life of children in various ways. Not all essential components of HRQL, according to the children, are part of existing asthma-specific HRQL instruments.Dyspnea, dependence of medication, and not being able to fully integrate with peers are among the many aspects that could negatively influence the life of asthmatic children. Health-related quality of life (HRQL) brings together various aspects of an individual's subjective experience that relate both directly and indirectly to health, disease, disability, and impairment[1]. Since HRQL is a uniquely personal perception, the individual's view on the components of asthma-specific HRQL is the preferred basis of a content-valid HRQL instrument [2,3]. For asthma, several self-administered questionnaires to assess disease-specific HRQL in primary school-aged children with asthma have been developed, the most prominent ones being the Pediatric Asthma Quality of Life Questionnaire (PAQLQ) [4], the How Are You (HAY) instrument [5], The Pediatric Quality of Life Inventory (PEDsQL?) Generic Core Scales and Asth
Adapta??es ao sistema kanban: revis?o, classifica??o, análise e avalia??o
Lage Junior, Muris;Godinho Filho, Moacir;
Gest?o & Produ??o , 2008, DOI: 10.1590/S0104-530X2008000100015
Abstract: this paper reviews the literature regarding adaptations of the kanban system with the purpose of identifying, classifying and analyzing this literature. thirty three different systems were studied and classified according to six categories: the publication year, the number of original characteristics preserved in the adaptation, the operational differences between the adaptation and the original kanban, the advantages and disadvantages related to the original kanban, and the way that these systems were developed. a brief summary of each adaptation is shown integrating the scattered efforts undertaken by the authors with the aim of improving the kanban system and adjusting it to the new and/or distinct necessities of the production systems. it was found that, among other topics, the development of the adapted systems, in general, is at an initial stage, once the majority of the proposals are theoretical and might be considered to generate more appropriated practical forms.
Application of conjoint analysis in studying demand for mp3 players on the B-H market
Emir Kurtovi?,Muris ?i?i?,Emir Agi?
Tr?i?te/Market , 2008,
Abstract: The paper illustrates practical aspects of conjoint analysis in studying evaluation and preference criteria when buying hardware MP3 players among the youth, as the most significant segment of such product buyers. Methodology: The methodology consisted of several surveys of young consumers in the Sarajevo region. In the first step, we used unstructured focus group interviews combined with a series of multiple-choice and open-ended questions for identifying product attributes and attribute levels that are relevant to consumers’ preferences. After the main attributes and the levels of attributes had been selected, they were combined to form different hypothetical product profiles. Obtained data were analyzed with the help of the conjoint analysis software. Findings: The results show that MP3 player manufacturers and sellers should focus their marketing strategies on the brand when targeting young people, as the most significant market segment for such products. The findings of the demand and price sensitivity analysis imply that the buyers of this product category are generally price-sensitive and therefore willing to switch brands. Limitations: While the study covered the most important attributes regarding MP3 players, it might be desirable to include design as an additional attribute as well as more brands. Also, a sample size could be increased to allow market segmentation based on the obtained part-worths.
Disrupting the rhythm of depression: design and protocol of a randomized controlled trial on preventing relapse using brief cognitive therapy with or without antidepressants
Claudi LH Bockting, Hermien J Elgersma, Gerard D van Rijsbergen, Peter de Jonge, Johan Ormel, Erik Buskens, A Dennis Stant, Peter J de Jong, Frenk PML Peeters, Marcus JH Huibers, Arnoud Arntz, Peter Muris, Willem A Nolen, Aart H Schene, Steven D Hollon
BMC Psychiatry , 2011, DOI: 10.1186/1471-244x-11-8
Abstract: Therefore, we will compare the effectiveness and cost-effectiveness of brief CT while tapering AD to maintenance AD and the combination of CT with maintenance AD. In addition, we examine whether the prophylactic effect of CT was due to CT tackling illness related risk factors for recurrence such as residual symptoms or to its efficacy to modify presumed vulnerability factors of recurrence (e.g. rigid explicit and/or implicit dysfunctional attitudes). This is a multicenter RCT comparing the above treatment scenarios. Remitted patients on AD with at least two previous depressive episodes in the past five years (n = 276) will be recruited. The primary outcome is time related proportion of depression relapse/recurrence during minimal 15 months using DSM-IV-R criteria as assessed by the Structural Clinical Interview for Depression. Secondary outcome: economic evaluation (using a societal perspective) and number, duration and severity of relapses/recurrences.This will be the first trial to investigate whether CT is effective in preventing relapse to depression in recurrent depression while tapering antidepressant treatment compared to antidepressant treatment alone and the combination of both. In addition, we explore explicit and implicit mediators of CT.Netherlands Trial Register (NTR): NTR1907Major depressive disorder (MDD) is projected to rank second on a list of 15 major diseases in terms of burden of disease in 2030 [1]. The major contribution of MDD to disability and health care costs is largely due to its highly recurrent nature [2,3]. Accordingly, efforts to reduce the disabling effects of depression should shift to preventing recurrences, especially in patients at high risk of recurrence. Several international guidelines (e.g., [4,5]) report that patients remitted from prior depressive episodes belong to such high risk groups. The preventive strategy globally suggested, i.e. continuation of antidepressants (AD) for years, is certainly not in line with the fact th
Determina??o do percentual de malte e adjuntos em cervejas comerciais brasileiras através de análise isotópica
Sleiman, Muris;Venturini Filho, Waldemar Gastoni;Ducatti, Carlos;Nojimoto, Toshio;
Ciência e Agrotecnologia , 2010, DOI: 10.1590/S1413-70542010000100021
Abstract: the aim of this study was to determine the amount of malt and adjunct in pilsen brazilian commercial beer, and to detect likely adulteration in its composition, based on the brazilian legislation. the methodology applied was the isotopic analysis which used carbon and nitrogen stable isotopes. one hundred sixty-one beer samples from seventeen brazilian states were analyzed. it was concluded that 95.6% used malt and adjunct (corn or sugarcane derived: 91.3% and rice derived: 4.3%) in their formula and 4.3% were "pure malt" beer. among the analyzed samples 3.7% were beers with less than 50% of malt in their formula (adulterated), 28.6% of them were in doubtful level for any adjunct and 67.7% contained malt in the legal established limit.
Influence of materialism on life satisfaction
Eda Gurel Atay,Joseph Sirgy,Melika Husi?,Muris ?i?i?
Tr?i?te/Market , 2010,
Abstract: This paper builds on Sirgy’s theory of materialism by integrating exposure to materialistic advertising and social influence into a more comprehensive model. The data collected in Bosnia-Herzegovina showed that exposure to materialistic advertising and social influence contributes to materialism. Materialism, in turn, leads to the use of all types of standards of comparison (affective- and cognitive-based expectations) to make judgments about the standard of living. As the use of these standards of comparison increases, people start to evaluate their standard of living more negatively and these negative evaluations of the standard of living lead to a dissatisfaction with life.
Study protocol of a Dutch smoking cessation e-health program
Nicola E Stanczyk, Catherine Bolman, Jean WM Muris, Hein de Vries
BMC Public Health , 2011, DOI: 10.1186/1471-2458-11-847
Abstract: Respondents who smoked at the time of the study inclusion, who were motivated to quit within the following six months and who were aged 18 or older were included in the program. The study is a randomized control trial with a 2 (video/text) * 2(LSES/HSES) design. Respondents were assigned either to one of the intervention groups (text versus video tailored feedback) or to the control group (non-tailored generic advice). In all three conditions participants were asked to fill in the baseline questionnaire based on the I-Change model. The questionnaire assessed socio-demographics, attitude towards smoking, knowledge, self-efficacy, social influence, depression, level of addiction, action planning, goal actions, intention to quit smoking, seven-day point prevalence and continued abstinence. Follow-up measurements were conducted at six and twelve months after baseline.The present paper describes the development of the two computer-tailored smoking cessation programs, their components and the design of the study. The study results reveal different working mechanisms of multiple tailored smoking cessation interventions and will help us to gain more insight into effective strategies to target different subgroups, especially smokers with a lower socio-economic status.Dutch Trial Register NTR3102Smoking tobacco is one of the most preventable causes of illness and premature death in the world [1]. The development of effective smoking cessation programs is essential to prevent illnesses [2].One effective strategy for health promotion that has been developed during the last decades concerns computer-tailored interventions [3,4]. CT has developed since the 1990s as a new technique for health promotion, as it provides the individual with personalized information and feedback on health behaviour. Tailored health messages are based on knowledge of a person generated from his or her answers to a questionnaire on issues related to health behaviour (in the case of smoking, for example,
Proposta de utiliza o do sistema Period Batch Control para redu o de lead time em uma empresa de bens de capital Lead time reduction in a capital goods company by means of the implementation of Period Batch Control system
Maico Roris Severino,Muris Lage Junior,Luciano Campanini,Alyne de Andrade Guimar?es
Produ??o , 2010,
Abstract: O objetivo do presente trabalho é apresentar uma proposta para a utiliza o do sistema PBC (Period Batch Control), assim como de dois pré-requisitos, a saber: mudan a na política de controle da qualidade e cria o de uma célula virtual, para reduzir o lead time em uma empresa de bens de capital. O método de pesquisa utilizado é o estudo de caso. Resultados previstos de tal implanta o indicam que a empresa estudada poderá obter vantagens significativas com a ado o do PBC como, por exemplo, redu o de 46,42% no lead time do produto estudado, diminui o de custos de WIP (Work In Process) em aproximadamente 50% e redu o de 31% no tempo improdutivo. Esses resultados promissores podem ser alcan ados também por empresas com características semelhantes que sigam a proposta apresentada neste artigo. Academicamente, o presente trabalho contribui para aumentar a divulga o do sistema PBC, assunto carente de pesquisas no Brasil. The goal of this work is to present a proposal for the use of the PBC (Period Batch Control), as well as two prerequisites, namely, to change the policy of quality control and creation of a virtual cell, to reduce the lead time in a company which produces capital goods. Case study research is the methodology used in this paper. Expected results of this implementation indicate that the company can obtain significant benefits by the adoption of PBC, such as 46.42% lead time reduction, reduction on WIP (Work In Process) costs in approximately 51.56% and unproductive time in 31%. These promising results can be achieved by companies with similar characteristics. Academically, this work contribute to increase the dissemination of the PBC, a subject in need of research in Brazil.
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