946 resultados para Vulnerability
Resumo:
Much recent research in SLA is guided by the hypothesis of L2 interface vulnerability (see Sorace 2005). This study contributes to this general project by examining the acquisition of two classes of subjunctive complement clauses in L2 Spanish: subjunctive complements of volitional predicates (purely syntactic) and subjunctive vs. indicative complements with negated epistemic matrix predicates, where the mood distinction is discourse dependent (thus involving the syntax-discourse interface). We provide an analysis of the volitional subjunctive in English and Spanish, suggesting that English learners of L2 Spanish need to access the functional projection Mood P and an uninterpretable modal feature on the Force head available to them from their formal English register grammar, and simultaneously must unacquire the structure of English for-to clauses. For negated epistemic predicates, our analysis maintains that they need to revalue the modal feature on the Force head from uninterpretable to interpretable, within the L2 grammar.With others (e.g. Borgonovo & Prévost 2003; Borgonovo, Bruhn de Garavito & Prévost 2005) and in line with Sorace's (2000, 2003, 2005) notion of interface vulnerability, we maintain that the latter case is more difficult for L2 learners, which is borne out in the data we present. However, the data also show that the indicative/subjunctive distinction with negated epistemics can be acquired by advanced stages of acquisition, questioning the notion of obligatory residual optionality for all properties which require the integration of syntactic and discourse information.
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This book sets out the findings of research conducted into the links between ecosystem services and poverty alleviation in Southern Africa. It follows from extensive primary research conducted in the region, as well as intensive engagement with researchers, policy-makers and relevant institutions in several countries in southern Africa, as part of the Ecosystem Services and Poverty Alleviation Programme led by DFI, NERC and ESRC.
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Floods are a major threat to human existence and historically have both caused the collapse of civilizations and forced the emergence of new cultures. The physical processes of flooding are complex. Increased population, climate variability, change in catchment and channel management, modified landuse and land cover, and natural change of floodplains and river channels all lead to changes in flood dynamics, and as a direct or indirect consequence, social welfare of humans. Section 5.16.1 explores the risks and benefits brought about by floods and reviews the responses of floods and floodplains to climate and landuse change. Section 5.08.2 reviews the existing modeling tools, and the top–down and bottom–up modeling frameworks that are used to assess impacts on future floods. Section 5.08.3 discusses changing flood risk and socioeconomic vulnerability based on current trends in emerging or developing countries and presents an alternative paradigm as a pathway to resilience. Section 5.08.4 concludes the chapter by stating a portfolio of integrated concepts, measures, and avant-garde thinking that would be required to sustainably manage future flood risk.
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The current study explored whether individuals diagnosed with schizophrenia and a high level of PTSD symptoms experience more frequent neutral intrusive memories than individuals diagnosed with schizophrenia with low level PTSD symptoms. Results supported a vulnerability to neutral intrusive memories within the comorbid group, which did not seem to be related to psychotic symptom severity. It is possible that a subgroup of psychotic individuals’ process information in a manner that make them susceptible to frequent intrusive memories, characteristic of a PTSD presentation. A longitudinal study is required to specify the development of this vulnerability so as to inform future interventions.
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This paper develops a framework of risk and protective factors to conceptualise the relationship between HIV-related stigma, asset inheritance and chronic poverty among widows and caregiving children and youth in eastern Africa. Analysis of two qualitative studies with 85 participants in rural and urban areas of Tanzania and Uganda reveals that gendered and generational inequalities and stigmatisation sometimes led to property grabbing and chronic poverty. Human and social capital and preventative measures however may help widows and caregiving young people in HIV-affected households to safeguard land and other assets, within a wider supportive environment that seeks to tackle structural inequalities.
Resumo:
Understanding the factors involved in the development of postpartum depressive disorders has important implications for the detection of women at risk, and the development of theory‐driven preventative treatments. In the current study, recent innovations in the assessment of idiographic cognitive functioning among adult, non‐pregnant samples were administered to a sample of healthy primiparous women to investigate their predictive utility in the onset of low mood following childbirth. Cognitive biases using autobiographical material, and the degree of self‐devaluation during brief episodes of naturally occurring low mood were assessed in 94 concurrently well women in the third trimester of their first pregnancy. The degree of depressive symptomatology at 2 and 8 weeks postpartum was assessed subsequently. Antenatal self‐devaluative tendencies and a lack of specificity in autobiographical retrieval were not associated with low mood in the initial weeks following delivery, when biological factors are believed to play an important role, but did predict depressive symptoms more distally at 8 weeks after childbirth. This relationship was demonstrated after controlling for educational level, variations in antenatal dysphoria, previous emotional difficulties, neuroticism and the woman's own experience of mothering. The theoretical and clinical implications of the findings are discussed.
Resumo:
Understanding what makes some species more vulnerable to extinction than others is an important challenge for conservation. Many comparative analyses have addressed this issue exploring how intrinsic and extrinsic traits associate with general estimates of vulnerability. However, these general estimates do not consider the actual threats that drive species to extinction and hence, are more difficult to translate into effective management. We provide an updated description of the types and spatial distribution of threats that affect mammals globally using data from the IUCN for 5941 species of mammals. Using these data we explore the links between intrinsic species traits and specific threats in order to identify key intrinsic features associated with particular drivers of extinction. We find that families formed by small-size habitat specialists are more likely to be threatened by habitat-modifying processes; whereas, families formed by larger mammals with small litter sizes are more likely to be threatened by processes that directly affect survival. These results highlight the importance of considering the actual threatening process in comparative studies. We also discuss the need to standardize and rank threat importance in global assessments such as the IUCN Red List to improve our ability to understand what makes some species more vulnerable to extinction than others.
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Although previous studies have addressed the question of why large brains evolved, we have limited understanding of potential beneficial or detrimental effects of enlarged brain size in the face of current threats. Using novel phylogenetic path analysis, we evaluated how brain size directly and indirectly, via its effects on life-history and ecology, influences vulnerability to extinction across 474 mammalian species. We found that larger brains, controlling for body size, indirectly increase vulnerability to extinction by extending the gestation period, increasing weaning age, and limiting litter sizes. However, we found no evidence of direct, beneficial or detrimental, effects of brain size on vulnerability to extinction, even when we explicitly considered the different types of threats that lead to vulnerability. Order-specific analyses revealed qualitatively similar patterns for Carnivora and Artiodactyla. Interestingly, for Primates, we found that larger brain size was directly (and indirectly) associated with increased vulnerability to extinction. Our results indicate that under current conditions the constraints on life-history imposed by large brains outweigh the potential benefits, undermining the resilience of the studied mammals. Contrary to the selective forces that have favoured increased brain size throughout evolutionary history, at present, larger brains have become a burden for mammals.
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One looming question has persisted in the minds of economists the world over in the aftermath of the 2007-2008 American Housing and Debt Crisis: How did it begin and who is responsible for making this happen? Another two-part question is: What measures were implemented to help end the crisis and what changes are being implemented to ensure that it will never happen again? Many speculate that the major contributing factor was the repeal of the Glass-Steagall Act in 1999 that prompted a virtual feeding frenzy among the banking community when new calls from Capitol Hill encouraged home ownership in America as well as the secondary mortgage market which skyrocketed thereafter. The Glass-Steagall Act will be among many of the topics explored in this paper along with the events leading up to the 2007-2008 housing/debt crisis as well as the aftermath.
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Esse trabalho objetivou promover a adaptação transcultural para o Brasil da VASS. Os passos para adaptação transcultural seguirão a proposta de operacionalização alicerçado na apreciação de diferentes tipos de equivalência: a conceitual e de itens, a semântica e a de mensuração. Para alcançar as duas primeiras etapas utilizou-se as técnicas de tradução e retrotradução associada ao procedimento intitulado Painel de Especialistas. Para o pré-teste e verificação de equivalência de mensuração, aplicou-se o questionário com uma população de 30 e 66 idosos, respectivamente. Para as análises dos resultados foi utilizada a estatística descritiva e inferencial, em especial o KR-20, teste T de student, correlação de Pearson e ANOVA univariada, bem como o método kappa de Fleiss para verificação do índice de confiabilidade. Verificou-se que o conceito utilizado para construção do instrumento, bem como seus itens se mostram adequados à investigação do fenômeno. Evidenciou-se boa equivalência semântica entre os itens das retrotraduções e do instrumento original, especialmente quanto aos resultados de T1 R1. Os juízes optaram pelo uso de 11 itens de T1 à versão-síntese. A equivalência operacional mostrou-se satisfatória. Em geral, os resultados apresentados mostraram-se aceitáveis. Quanto à etapa da equivalência de mensuração, verificou-se que a idade dos participantes variou entre 60 a 84 anos, prevalecendo respondentes idosas (n = 38), representando 57,6% da amostra estudada. O valor do KR-20 para o escore geral do instrumento foi de 0,688 (IC95%: 0,670). Os valores encontrados para as quatro dimensões propostas pelos autores do estudo inicial do instrumento foram 0,528, 0,289, 0,552 e 0,303, respectivamente. Apenas os valores de consistência interna das subescalas Vulnerabilidade e Coerção mostraram-se aproximados aos encontrados no estudo original, a saber, 0,550 e 0,390, respectivamente. Verificou-se que com a retirada dos itens nº 04, nº 06 e nº 10, houve aumento do índice de consistência interna da escala total. Já quanto aos valores da consistência interna das subescalas, percebeu-se que apenas com a retirada dos itens nº 09, referente à escala que dimensiona o Desânimo, e nº 12, item da subescala Coerção, é que houve acréscimo nesses valores. Destaca-se que esses são resultados preliminares, uma vez que após a verificação da adequabilidade e de padrões psicométricos iniciais acerca do uso do instrumento para a população idosa, ainda há de se dar continuidade à etapa concernente à verificação de propriedades psicométricas robustas do instrumento, que indiquem, por exemplo, evidências de fidedignidade em situação de teste-reteste, validade de constructo e de critério, se possível e aplicável. A principal limitação do estudo é a falta de um instrumento padrão-ouro para testar a fidedignidade, sensibilidade e especificidade do instrumento em questão. Apesar desta limitação, a adaptação transcultural e a verificação de propriedades psicométricas preliminares do instrumento de uma medida de autorrelato que afere indicativo de violência doméstica contra o idoso tem sua relevância e foi satisfatória
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)