626 research outputs found

    Visible and near-infrared spectroscopy of terrestrial analogues of Mars by spectro-gonio radiometer measurements.

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    Spectroscopic observation is one of the main tools employed to explore the geological features of extraterrestrial environments. In particular, space missions equipped with high resolution imaging spectrometers provide hyperspectral images of planetary surfaces under variable illumination and observation geometries, which represent an essential approach for the understanding of the geochemical context. For instance, combined in situ measurements, remote-sensing observations and laboratory investigations have provided extensive evidence for the presence of water-lain sedimentary rocks on Mars. Coupled with morphological evidence for ancient lakes and valleys, these findings open up questions on the climatic history of Mars, and stimulate the efforts addressed at deciphering whether Mars could have experienced warmer, wetter, and more habitable conditions in its past and consequently if some biological processes could have developed on it. Since the advent of present and future in situ missions to Mars to investigate its properties and to search for traces of life, the analysis of the acquired data requires comparative laboratory measurements. In particular, soil reflection of the sunlight can be interpreted by studying the spectra of artificial and natural terrestrial analogues. Here we present the preliminary results obtained with the Spectro-Gonio Radiometer (working in the 0.3-4.5 μm spectral range) at the Institut de Planétologie et Astrophysique de Grenoble, a facility which mimics the remote and in situ spectroscopic techniques used for the observation of the Martian surface and simulate the conditions of the planet itself (temperature, pressure and composition of the atmosphere). The analysed samples are analogues of Martian brines formed in a sulfur reach environment collected in the Danakil Depression, a particularly extreme environment of the Afar triangle at the junction of the Arabian, Nubian and Somalian lithospheric plates

    Perspective-taking accuracy on a conceptually complex problem

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    Perspective taking is the process of constructing an understanding of other persons' ways of conceptualizing and responding to situations. It involves the effortfulemployment of strategies that enable individuals to visualize, understand, anticipate, or predict the perceptions, thoughts, feelings, or actions of others. This is achieved when the observer attempts to create a mental model that corresponds to another's own mental model of situations. The present research was designed in the context of a model that views perspective taking as a process of constructing a representation that varies in difficulty according to (a) the degree of similarity between the perspective taker and the target person and (b) the degree of similarity between the perspective taker's own life situation and that of the person whose perspective is taken (target situation) (Cutting &Chinn, 2007). The perspective-taking problem provided to participants (college students enrolled in an educational psychology course) is unlike most prior research on perspective taking. It required them to predict how a conceptually novel target person (a villager living in Los Molinos, Peru) responded to a dissimilar situation (introduction of water purification practices). Multiple source documents on this topic provided opportunities for participants to seek out information and adjust their mental models accordingly. In addition, a variety of prompts and scaffolds to promote strategy use were examined for their influence on perspective-taking accuracy. Results from this study showed that brainstorming multiple predictions facilitated initial prediction accuracy and that new information in critical source documents enhanced final prediction accuracy. However, cognitive biases, such as rationalizing anomalous information and confirmation bias, interfered with correcting inaccurate predictions.Ph.D.Includes bibliographical references (150-163)by Maris F. Cuttin

    Cardinal Cos, bishop Pedro Segura Sáenz and the sculptor Ramón Núñez: the "Stella Maris" of Comillas

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    Coinciden tres personalidades en torno a la obra de la “Stella Maris” en Comillas. El escultor Ramón Núñez es autor de la estatua “Stella Maris” que culmina la fachada marítima de la iglesia del Seminario Pontificio de Comillas (Cantabria), bendecida cuando ese centro cumplía su XXV aniversario. Fue circunstancia decisiva el cardenal Cos que consagra como Obispo de Apolonia a Pedro Segura Sáenz, primer alumno de aquel seminario que alcanzó la mitra. Los tres coincidieron en Valladolid desde 1912.The sculptor Ramón Núñez is the author of the statue "Stella Maris", on the top of the seaside façade of the church of the Pontifical Seminary of Comillas (Cantabria), which was consecrated at the time of the XXV anniversary of this institution. On the same occasion, Cardinal Cos appointed Pedro Segura Sáenz as Apollonia's Bishop was the first student of Cardinal Cos to receive episcopal consecration.peerReviewe

    The county agent

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    by Paul V. Maris, county agent leader.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Mode of access: Internet from the Oregon Government Publications Collection.Text in English

    Four individuals standing in front of Government House at Madang. Maris from Atemble on left.

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    Title imposed. Caption on rear of the photograph: “4 house boys taken in front of Government house at Madang. Maris our cook boy out here at Atemble on left.” Captions reflect the attitudes of the author at the time they were written, and do not reflect the values of the archives. These photographs were taken during Stinear's time in Papua New Guinea from 1936-1937, in the Sepik, Ramu, and Gulf regions

    The Impact of Tourism on Curacao's Economy: A Scenario Approach

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    Curaçao is an autonomous countrywithin the Kingdom of the Netherlands. The governmentwants to support tourism development. However,various development strategies are possible. This articlepresents four scenarios of marketing and investmentstrategies that will affect the number of tourists fromThe Netherlands and North America (USA and Canada)in different ways. A multiplier model was used to calculatethe economic impacts of the four scenarios. Bydoing so, this article shows how the government’s decisionto support particular marketing and investmentstrategies may have certain outcomes for the number ofjobs in Curaçao’s tourism industry

    Teoria da resposta ao item aplicada ao Inventário de Depressão Beck Item response theory applied to the Beck Depression Inventory

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    O Inventário de Depressão Beck (BDI), uma escala que mede o traço latente de intensidade de sintomas depressivos, pode ser avaliado através da Teoria da Resposta ao Item (TRI). Este estudo utilizou o modelo TRI de Resposta Gradual na avaliação da intensidade de sintomas depressivos de 4.025 indivíduos que responderam ao BDI, de modo a explorar eficientemente a informação disponível nos diferentes aspectos possibilitados pelo uso desta metodologia. O ajuste foi efetuado no software PARSCALE. Foram identificados 13 itens do BDI nos quais pelo menos uma categoria de resposta não tinha chance maior que as demais de ser escolhida, de modo que estes itens tiveram de ser recategorizados. Os itens com maior capacidade de discriminação são relativos à tristeza, pessimismo, sentimento de fracasso, insatisfação, auto-aversão, indecisão e dificuldade para trabalhar. Os itens mais graves são aqueles relacionados com perda de peso, retraimento social e idéias suicidas. O grupo dos 202 indivíduos com as maiores intensidades de sintomas depressivos foi composto por 74% de mulheres, e praticamente 84% possuíam diagnóstico de algum transtorno psiquiátrico. Os resultados evidenciam alguns dos inúmeros ganhos advindos da utilização da TRI na análise de traços latentes.The Beck Depression Inventory (BDI), a scale that measures the latent trait intensity of depression symptoms, can be assessed by the Item Response Theory (IRT). This study used the Graded-Response model (GRM) to assess the intensity of depressive symptoms in 4,025 individuals who responded to the BDI, in order to efficiently use the information available on different aspects enabled by the use of this methodology. The fit of this model was done in PARSCALE software. We identified 13 items of the BDI in which at least one response category was not more likely than others to be chosen, so that these items had to be categorized again. The items with greater power of discrimination were sadness, pessimism, feeling of failure, dissatisfaction, self-hatred, indecision, and difficulty of work. The most serious items were weight loss, suicidal ideas, and social withdrawal. The group of 202 individuals with the highest levels of depressive symptoms was comprised by 74% of women and almost 84% had a diagnosis of a psychiatric disorder. The results show gains resulting from use of IRT in the analysis of latent traits

    A educação ambiental e gênero como instrumentos do desenvolvimento rural em municípios do RS

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    Este trabalho buscou identificar e analisar porque a presença e a participação de agricultores familiares são inferiores às de agricultoras familiares nos processos de Educação Ambiental, no meio rural e a partir disto discutir as implicações desta disparidade na eficácia dos mesmos. Para tal, foi realizada pesquisa de campo em dois municípios do estado do RS que tinham trabalhos de Educação Ambiental com agricultores e agricultoras familiares. O método principal utilizado para realizar a pesquisa de campo foi a entrevista semiestruturada, seguida da análise e síntese dos conteúdos obtidos a partir de quadros, tabelas e resumos das entrevistas, associando-os aos aportes teóricos baseados em estudo de Gênero, Educação Ambiental, Desenvolvimento Rural, Agricultura Familiar e Sustentabilidade e ao contexto de vida dos sujeitos entrevistados. As constatações da pesquisa apontaram que a presença de agricultores do sexo masculino é reduzida em atividades de Educação Ambiental, porque na percepção destes a Educação Ambiental não trata de questões técnicas, produtivas e econômicas, indispensáveis para a sobrevivência das famílias. O interesse masculino volta-se para questões técnico/produtivas e os estudos sobre diferenças de gênero no meio rural mostraram que a técnica e a tecnologia reforçam valores masculinos, enquanto que o cuidado ambiental, assim como a educação dos filhos, são vistos como atividades "leves", não envolvendo técnica, produtividade ou lucro e por isto são consideradas atividades femininas. Outras razões para a disparidade encontram-se nas formas como o conhecimento sobre Educação Ambiental tem chegado até os agricultores familiares, na influência dos graus de escolaridade sobre as disponibilidades de participar ou não nestas e na descontinuidade das mesmas. Em relação às implicações das disparidades de presença e participação sobre a eficácia da Educação Ambiental verificou-se que os participantes de atividades de Educação Ambiental (homens ou mulheres) apresentam concepções e ações mais reflexivas, críticas e complexas em suas interações com o ambiente, confirmando que a eficácia das atividades de Educação Ambiental seria maior com maior participação dos homens, pois isto os levaria a sair de uma posição de tentativa de domínio sobre a natureza para uma posição de equilíbrio, reflexão e ação crítica sobre suas próprias práticas. A dissertação se encerra destacando aspectos da pesquisa que podem levar a maiores aprofundamentos e não foram suficientemente desenvolvidos devido às limitações de espaço e de tempo da dissertação.This research looked to identify and to analyze why the presence and the family farmers' participation are inferior to the ones of farming family in the processes of Environmental Education in the rural space, and starting from this to discuss the implications of this disparity in the effectiveness of the same ones. For such, field research was accomplished in two municipal districts of the state of RS that had works of Environmental Education with farmers and farming family. The main method used to accomplish the field research was the semistructured interview, following by analysis and synthesis of the contents obtained from pictures, tables and summaries of the interviews, associating them to the theoretical contributions based on Gender study, Environmental Education, Rural Development, Family Agriculture and Sustainability and to the context of life from the subjects interviewed. The verifications of the research pointed that the presence of male farmers is reduced in activities of Environmental Education because in their perception the Environmental Education doesn't treat of technical, productive and economical subjects, indispensable for the families' survival. The masculine interest is focus on technical/productive subjects and the studies on gender differences in the rural space showed that technique and technology reinforce masculine values, while the environmental care as well the children's education are seen as "light" activities, not involving technique, productivity or profit and for this they are considered feminine activities. Other reasons for the disparity are in the ways as the knowledge about Environmental Education has been arriving to the family farmers, in the influence of the education degrees about the readiness of participating or not in these and in the discontinuity of the same ones. In relation to the implications of the presence and participation disparities on the effectiveness of the Environmental Education was verified that the participants of activities of Environmental Education (men or women) present conceptions and more reflexive, critical and complex actions in their interactions with the environment, confirming that the effectiveness of the activities of Environmental Education would be larger with a larger mens' participation, because this would take them to leave a position of domain on the nature for a balance position, reflection and critical action on their own practices. The dissertation is concluded highlighting aspects of the research that can take to larger knowledge and that were not sufficiently developed due to space and time limitations of the dissertation

    The practice of adaptation : turning fact and fiction into theatre

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    Adaptation of novels and other source texts into theatre has proven to be a recurring and popular form of writing through the ages. This study argues that as the theoretical discourse has moved on from outmoded notions of fidelity to original sources, the practice of adaptation is a method of re-invigorating theatre forms and inventing new ones. This practice-led research employed a tripartite methodology comprised of the writing of two play adaptations, participation by the author/researcher in their productions, and exegetical components focused on the development and deployment of analytical tools. These tools were derived from theoretical literature and a creative practice based on acquired professional artistry "learnt by doing" over a longstanding professional career as actor, director and writer.\ud \ud A suite of analytical tools was developed through the three phases of the first project, the adaptation of Nick Earls’ novel Perfect Skin. The tools draw on Cardwell’s "comparative analysis", which encompasses close consideration of generic context, authorial context and medium-specific context; and on Stam’s "mechanics of narrative": order, duration, frequency, the narrator and point of view. A third analytical lens was developed from an awareness of the significance of the commissioning brief and ethical considerations and obligations to the source text and its author and audience.\ud \ud The tripartite methodology provided an adaptation template that was applied to the writing and production of the second play Red Cap, which used factual and anecdotal sources. The second play’s exegesis (Chapter 10) analyses the effectiveness of the suite of analytical tools and the reception of the production in order to conclude the study with a workable model for use in the practice of adapting existing texts, both factual and fictional, for the theatre

    Item response theory applied to the Beck Depression Inventory

    No full text
    O Inventário de Depressão Beck (BDI), uma escala que mede o traço latente de intensidade de sintomas depressivos, pode ser avaliado através da Teoria da Resposta ao Item (TRI). Este estudo utilizou o modelo TRI de Resposta Gradual na avaliação da intensidade de sintomas depressivos de 4.025 indivíduos que responderam ao BDI, de modo a explorar eficientemente a informação disponível nos diferentes aspectos possibilitados pelo uso desta metodologia. O ajuste foi efetuado no software PARSCALE. Foram identificados 13 itens do BDI nos quais pelo menos uma categoria de resposta não tinha chance maior que as demais de ser escolhida, de modo que estes itens tiveram de ser recategorizados. Os itens com maior capacidade de discriminação são relativos à tristeza, pessimismo, sentimento de fracasso, insatisfação, auto-aversão, indecisão e dificuldade para trabalhar. Os itens mais graves são aqueles relacionados com perda de peso, retraimento social e idéias suicidas. O grupo dos 202 indivíduos com as maiores intensidades de sintomas depressivos foi composto por 74% de mulheres, e praticamente 84% possuíam diagnóstico de algum transtorno psiquiátrico. Os resultados evidenciam alguns dos inúmeros ganhos advindos da utilização da TRI na análise de traços latentes.The Beck Depression Inventory (BDI), a scale that measures the latent trait intensity of depression symptoms, can be assessed by the Item Response Theory (IRT). This study used the Graded-Response model (GRM) to assess the intensity of depressive symptoms in 4,025 individuals who responded to the BDI, in order to efficiently use the information available on different aspects enabled by the use of this methodology. The fit of this model was done in PARSCALE software. We identified 13 items of the BDI in which at least one response category was not more likely than others to be chosen, so that these items had to be categorized again. The items with greater power of discrimination were sadness, pessimism, feeling of failure, dissatisfaction, self-hatred, indecision, and difficulty of work. The most serious items were weight loss, suicidal ideas, and social withdrawal. The group of 202 individuals with the highest levels of depressive symptoms was comprised by 74% of women and almost 84% had a diagnosis of a psychiatric disorder. The results show gains resulting from use of IRT in the analysis of latent traits
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