A Distribuição ?sup: propriedades e aplicações / The ?sup distribution: properties and applications

Frequentemente, pesquisadores estão interessados em modelar eventos de dife- rente natureza recorrendo a propostas de modelos probabilísticos a fim de descrever os fenômenos com certa segurança, tais como níveis pluviométricos, inundações, ve- locidade dos ventos, entre outras aplicações. No escopo da teoria da probabilidade, a atenção é voltada para a Teoria dos Valores Extremos(TVE), em que eventos considerados raros são levados em consideração, e generalizações de famílias de dis- tribuições englobadas no TVE são reconhecidas como distribuições de cauda mais pesada. Com uso do método T ? X para gerar novas famílias de distribuições ge- neralizadas, propõe-se a inserção de uma nova distribuição na literatura, utilizando uma distribuição de base advinda do TVE. Faz-se um estudo rigoroso desta afim de verificarmos suas aplicabilidades. Estrutura-se a sua obtenção, ilustra-se algumas de suas formas, apresenta-se o método de geração de valores do novo modelo, assim como é abordado a estimação dos parâmetros usando-se a teoria de máxima veros- similhança. Finalmente, ilustra-se a adequabilidade do novo modelo ao ajustá-lo a conjuntos de dados reais, compara-o com outros modelos existentes na literatura e constrói-se testes de hipótese a respeito da inserção do novo parâmetro, utilizando a metodologia para modelos não encaixados.

Independent statistical validation of the New Zealand Seafloor Community Classification

\ua9 2024 The Authors. Aquatic Conservation: Marine and Freshwater Ecosystems published by John Wiley & Sons Ltd. The New Zealand Seafloor Community Classification (NZSCC) is a national-scale numerical community classification which depicts compositional turnover of 1716 taxa (demersal fish, reef fish, benthic invertebrates and macroalgae) classified into 75 groups representing seafloor communities. To ensure the continual use of the NZSCC for spatial planning and reporting, a robust maintenance framework must be set in place; key to this is being able to assess the ability of the classification to represent (discriminate between) different seafloor communities. Here we describe an approach for validating the NZSCC using temporally independent evaluation data for demersal fish and benthic invertebrates (the latter sampled via a different method), which identifies whether the NZSCC represents different seafloor communities (i.e., assesses classification strength), evaluates the underlying statistical model, and considers heterogeneity in environmental coverage and statistical uncertainty. Additionally, the availability of abundance estimates for these evaluation datasets provides an opportunity to test whether the NZSCC—which was developed using presence-absence data—can reflect abundance-weighted seafloor communities. The ANOSIM global R values (measuring classification strength) were 0.53 and 0.46 (and significant at the 1% level) for demersal fish and benthic invertebrates, respectively, indicating that the NZSCC groups define biologically distinctive environments. The proportion of significant inter-group differences were very high (95% and 97% for demersal fish and benthic invertebrates, respectively) suggesting NZSCC groups were distinct from each other in their taxonomic composition. There were positive relationships between the evaluation datasets and the underlying statistical model. There was no evidence of these relationships being affected by the statistical uncertainty of the NZSCC. NZSCC model validation metrics using abundance evaluation data were also moderately high (albeit lower than for presence-absence for invertebrates) suggesting that the NZSCC, can at least in part, represent variation in abundance-weighted communities. Results presented here suggest that the existing NZSCC is currently fit-for-purpose for informing management decisions

Disorders of Consciousness

Disorders of Consciousness are a big challenge for the entire process of rehabilitation: assessment, diagnosis, pharmacological, and rehabilitation programs, including conventional treatments and the use of new technologies

ENVIRONMENTAL PROBLEMS AND MIGRATION IN THE LAGUNAR DE ALVARADO SYSTEM, VERACRUZ, MEXICO

Background. The fishing problem in the Lagunar de Alvarado System (LAS), taking into account environmental or socioeconomic aspects, has been analyzed by various authors, but few have addressed the relationship between environmental problems as perceived by fishermen, and migration. Objective. To identify the migration phenomenon in three zones of the LAS and its relationship with environmental problems perceived by fishermen. Methodology. Information was compiled from a survey applied to 32 Family Fishing Units. To quantify the environmental problem perceived and relate it to migration, three indicators were used: Pollution Perceived by fishermen, State of Perceived Health of the Fishery Resource and State of Perceived Health of the Environment. Results. The wetland areas have more precarious socioeconomic conditions than the area that borders the mainland, while migration and perceived environmental problems vary in each zone. Implications. Because the causes of migration are multiple, environmental deterioration has an impact on this phenomenon but does not explain it by itself. Therefore, more comprehensive analyses are required. Conclusions. There is insufficient evidence to affirm that the environmental deterioration identified by fishermen is an important motivation for migration

Development of micro-scale weather data on building energy consumption in Singapore

Fourth International Conference on Countermeasures to Urban Heat Islands (IC2UHI)Singapor

PF 24. Behaviour of alfalfa-ovillo meadow at different grazing frequencies with lambs

The objective was to determine forage on-offer and residual and live-weight gain in lambs when grazing on an alfalfa-orchard pasture at different intervals. In a rotational grazing three intervals: 21, 28 or 35 days were tested. Grazing period was 7 days and daily herbage allowance was 5% on all treatments. Experimental design was a complete block with three replications. Only in the third grazing cycle differences (P < .05) in forage on offer and residual among grazing frequencies were found. The highest forage on-offer was at the 35 days interval, while the highest residual forage was at the 21 days interval. The higher amount of residual forage at the 21 day interval was of lower quality and then live-weight at 90 days of grazing and live-weight gain were the lowest at this grazing interval