Characterization of the State of Hydrogen

Fermionic path integral Monte Carlo simulations have been applied to study the equilibrium properties of the hydrogen and deuterium in the density and temperature range of 1.6 < rs < 14.0 and 5000K < T < 167000K. We use this technique to determine the phase diagram by identifying the plasma, the molecular, atomic and metallic regime. We explain how one can identify the phases in the path integral formalism and discuss the state of hydrogen for 5 points in the temperature-density plane. Further we will provide arguments for the nature of the transitions between the regimes.Comment: 4 pages, 2 figures, proceedings of 9th International Workshop on the Physics of Nonideal Plasmas, Rostock, Germany, September 199

Lucky or clever? From expectations to responsibility judgments

How do people hold others responsible for the consequences of their actions? We propose a computational model that attributes responsibility as a function of what the observed action reveals about the person, and the causal role that the person's action played in bringing about the outcome. The model first infers what type of person someone is from having observed their action. It then compares a prior expectation of how a person would behave with a posterior expectation after having observed the person's action. The model predicts that a person is blamed for negative outcomes to the extent that the posterior expectation is lower than the prior, and credited for positive outcomes if the posterior is greater than the prior. We model the causal role of a person's action by using a counterfactual model that considers how close the action was to having been pivotal for the outcome. The model captures participants' responsibility judgments to a high degree of quantitative accuracy across three experiments that cover a range of different situations. It also solves an existing puzzle in the literature on the relationship between action expectations and responsibility judgments. Whether an unexpected action yields more or less credit depends on whether the action was diagnostic for good or bad future performance

A relação entre percepção de valor e retenção: uma análise comparativa entre faculdades e universidades particulares

ABSTRACTThe relationship between perceived value and retention of students has been widely studied in national and international literature. One of the ways to analyze student’s relationship with their institutions is through understanding their perception of value of the institution. Based on this analysis, this paper proposes an alternative study of this relationship by comparing samples collected at private colleges and universities through the second-order factor models. The purpose of this study was to evaluate the influence of perceived value in retention of students in Higher Education Institutions (HEI). Furthermore, we intended to examine the possible moderating influence of HEI’s scope (either college or university) in the relationship between perceived value and retention. To this purpose, we applied five hundred and sixteen questionnaires to undergraduate students of four HEI (two colleges and two universities) located in the state of Rio Grande do Sul. Findings led to propose the second-order factor models as an alternative paradigm to traditional models of SEM, generating more robust and reliable functional relationships. In addition, we accepted the hypothesis of moderation

Nonwoven from cigarette butt applied in pre-treatment of surface water

This study aimed to evaluate a nonwoven (NW) production and performance from cellulose acetate fiber from cigarette butts andapplied to a filtration system for surface water pre-treatment. The system had a surface area of 528 cm2, cellulose acetate from cigarette butt as filter media, was used and was fed with surface water from a pond. In order to evaluate the treatment performance of the filtration system were evaluated in the raw water (RW) and the filtered water (FW) the classical parameter of water quality as turbidity, total suspended solids (TSS), apparent color, true color, and total organic carbon (TOC) and heavy metals (iron, copper, and cadmium). Moreover, the presence of nicotine was investigated in the FW. The results showed a mean removal efficiency in order to 62.01%, 54.42%, 50.36 %, 6.73%, and 5.20% for turbidity, TSS, apparent color, true color, and TOC, respectively. The removal of metals varied in the order of 72.26%, 9.61%, and 2.12% for cadmium, iron, and copper, respectively. The presence of nicotine in RW and FW was not identified. In this way, besides reducing the negative environmental impacts caused by cigarette butts present in the environment, the developed technology showed potential for removing pollutants present in surface waters

Estudo sobre a dinâmica econômica do município de Taquara/RS referenciada na metodologia do quociente locacional

This article presents the results of a research that aimed to identify the current productive structure and analyze the recent economic dynamics in the city of Taquara, RS. The main analytical tool is the identification of the productive chains of the territory through the calculation and interpretation of urban and rural QLs for specific activities and sectors. The theoretical basis for regional development adopted was that of the “export base”, based on the locality and the region. The analysis of the results confirmed the hypothesis that the offer of health and education services and diversified commerce still justify the classification of the municipality as a regional pole. In addition, there are opportunities for strengthening the food industry combined with the rural environment. Keywords: Productive Chains. Locational Quotient. Territorial Development.Este artículo presenta los resultados de una investigación tenido como objetivo identificar la estructura productiva actual y analizar la dinámica económica reciente en la ciudad de Taquara, RS. La principal herramienta analítica es la identificación de las cadenas productivas del territorio a través del cálculo e interpretación de QL urbanas y rurales para actividades y sectores específicos. La base teórica para el desarrollo regional adoptada fue la de la "base de exportación", basada en la localidad y la región. El análisis de los resultados confirmó la hipótesis de que la oferta de servicios de salud y educación y el comercio diversificado aún justifican la clasificación del municipio como un polo regional. Además, existen oportunidades para fortalecer la industria alimentaria combinada con el medio rural. Palabras clave: Cadenas Productivas. Cociente de Ubicación. Desarrollo Territorial.Este artigo apresenta resultados de uma pesquisa que teve a finalidade de identificar a estrutura produtiva atual e analisar a dinâmica econômica recente do município de Taquara, RS. O principal instrumento analítico é a identificação das cadeias produtivas do território através do cálculo e interpretação dos QLs urbanos e rurais das atividades e setores específicos. O lastro teórico de desenvolvimento regional adotado foi o da “base de exportação”, tomando por base a localidade e a região. A análise dos resultados confirmou a hipótese de que a oferta de serviços de saúde e educação e o comércio diversificado ainda justificam a classificação do município como um polo regional. Além disso, há oportunidades para o fortalecimento da indústria de alimentos aliada ao meio rural. Palavras-chave: Cadeias Produtivas. Quociente Locacional. Desenvolvimento Territorial.

Growth and flowering of carnation cultivated in different pot colors and protected environments

The Dianthus caryophyllus L. occupies the second position of the best sold cut flowers after rose. The choice of the environment and the cultivation container is crucial for flower production because, besides permitting higher temperature, light, and relative humidity management, it also impacts yield. This study evaluated the cultivation of yellow carnation in different protected environments and pot colours. The experiment was conducted in a factorial 2 × 4 (greenhouse and nursery x blue, red, brown, and black pots; the black pot was considered the control treatment). The photosynthetically active radiation, substrate temperature, and meteorological variables in the environments were monitored during the experiment's conduction as well the growth and productivity variables. The greenhouse significantly reduced solar radiation, generating favourable conditions for the initial growth of carnation plants. The nursery maintained higher levels of solar radiation, stimulating its flowering. The cultivation in brown pots provided higher quality plants regarding both vegetative growth and flowering. Therefore, brown pots are an option to substitute the black pots traditionally used for flower production. The use of the blue pot negatively influenced the development of carnation plants

Development of the Standards of Reporting of Neurological Disorders (Strond) Checklist: A Guideline for the Reporting of Incidence and Prevalence Studies in Neuroepidemiology

Background: Incidence and prevalence studies of neurologic disorders play an important role in assessing the burden of disease and planning services. However, the assessment of disease estimates is hindered by problems in reporting for such studies. Despite a growth in published reports, existing guidelines relate to analytical rather than descriptive epidemiologic studies. There are also no user-friendly tools (e.g., checklists) available for authors, editors, and peer reviewers to facilitate best practice in reporting of descriptive epidemiologic studies for most neurologic disorders. Objective: The Standards of Reporting of Neurological Disorders (STROND) is a guideline that consists of recommendations and a checklist to facilitate better reporting of published incidence and prevalence studies of neurologic disorders. Methods: A review of previously developed guidance was used to produce a list of items required for incidence and prevalence studies in neurology. A 3-round Delphi technique was used to identify the “basic minimum items” important for reporting, as well as some additional “ideal reporting items.” An e-consultation process was then used in order to gauge opinion by external neuroepidemiologic experts on the appropriateness of the items included in the checklist. Findings: Of 38 candidate items, 15 items and accompanying recommendations were developed along with a user-friendly checklist. Conclusions: The introduction and use of the STROND checklist should lead to more consistent, transparent, and contextualized reporting of descriptive neuroepidemiologic studies resulting in more applicable and comparable findings and ultimately support better health care decisions

Determinantes da Relação Confiança e Lealdade no Setor Hoteleiro: Uma Análise das Dimensões Atendimento e Valor Percebido

O presente artigo teve como objetivo analisar os antecedentes que influenciam na relação confiança e lealdade dos hóspedes no setor hoteleiro. Para isto, foi construído um modelo teórico que sustenta nove hipóteses. Logo após, desenvolveu-se uma pesquisa de campo com características descritivas e de natureza quantitativa, com a aplicação de trezentos e setenta e dois questionários. Após a coleta dos dados, os mesmos foram processados por meio da técnica de modelagem de equações estruturais que permitiu testar as proposições. Os resultados demonstraram que o comprometimento tem um papel fundamental na relação confiança e lealdade, principalmente quando são incorporados os antecedentes, valor percebido e confiança no atendimento. Além disso, o modelo final adicionou seis novas correlações que devem ser respeitadas ao desenvolver estratégias, visando a uma maior confiança e lealdade dos hóspedes: característica com atendimento e satisfação com atendimento; experiências anteriores e qualidade percebida; características com atendimento e experiências anteriores; satisfação com atendimento e experiências anteriores; qualidade percebida e características com atendimento; qualidade percebida e satisfação com atendimento; qualidade percebida e confiança no hotel; característica no atendimento e confiança no hotel. Palavras-chave: Confiança. Lealdade. Confiança no Atendimento. Valor percebido