Some Extended Classes of Distributions: Characterizations and Properties

Based on a simple relationship between two truncated moments and certain functions of the th order statistic, we characterize some extended classes of distributions recently proposed in the statistical literature, videlicet Beta-G, Gamma-G, Kumaraswamy-G and McDonald-G. Several properties of these extended classes and some special cases are discussed. We compare these classes in terms of goodness-of-fit criteria using some baseline distributions by means of two real data sets

Quiropterofauna Do Cerrado Leste Maranhense, Brasil, Com Ocorrência De Novos Registros. Biota Neotropica

In Brazil, 179 bat species have been recorded to date, representing 68 genera and nine families. Few data are available on the bat fauna of the state of Maranhão, so the present study was based on a survey of the bat fauna of the Inhamum Municipal Environmental Protection Area (APA Inhamum) in the Cerrado savanna of the eastern extreme of the state. This inventory provides new records of bat species for the state of Maranhão and the Cerrado biome. A total of 31 species (four families) were collected, representing 39% of the bat species known to occur in Maranhão and 28.71% of the species described for the Cerrado. The family Phyllostomidae was the most diverse, with 23 species (74.20% of the total), and also the most abundant, with 86.09% of the specimens collected. The Molossidae (four species) was the second most diverse, followed by the Vespertilionidae (three species) and the Emballonuridae (one species). Carollia perspicillata was the most abundant species (28%).The records of Artibeus fimbriatus and Platyrrhinus fusciventris are the first for the Cerrado and were also recorded in Maranhão for the first time. The cumulative species curve did not reach an asymptote. The species Dermanura gnoma, Lasiurus blossevillii, Lasiurus ega, Micronycteris schmidtorum, Molossops temminckii, Platyrrhinus cf. recifinus, Phylloderma stenops and Trachops cirrhosus, were also recorded in Maranhão for the first time demonstrating the value of for mammal inventories and emphasizing the need for further surveys in this poorly-known region. © 2016, Universidade Estadual de Campinas UNICAMP. All Rights Reserved.16

The Odd Nadarajah-Haghighi Family of Distributions: Properties and Applications

We study some mathematical properties of a new generator of continuous distributions called the Odd Nadarajah-Haghighi (ONH) family. In particular, three special models in this family are investigated, namely the ONH gamma, beta and Weibull distributions. The family density function is given as a linear combination of exponentiated densities. Further, we propose a bivariate extension and various characterization results of the new family. We determine the maximum likelihood estimates of ONH parameters for complete and censored data. We provide a simulation study to verify the precision of these estimates. We illustrate the performance of the new family by means of a real data set

Associação da prática de atividade física e do estado de saúde sobre a qualidade de vida de mulheres com fibromialgia

This study analyzed the association between physical activity, health status and life quality among women with fibromyalgia. Cross-sectional study based on the clinical information of 177 women (42.1 ± 8.6 years old) diagnosed with fibromyalgia and assisted in rheumatology clinics of the private sector of the Unified Health System (UHS) in the city of Maringá-PR, Brazil. The instruments were the International Physical Activity Questionnaire (IPAQ), the Fibromyalgia Impact Questionnaire (FIQ) and the WHOQOL-Bref. Data analysis was conducted through Mann-Whitney test, Spearman correlation and Structural Equation Analysis (p<0.05). Results showed positive correlations between physical activity and life quality domain. Health status showed negative correlation life quality domains. Structural Equation Analysis revealed days of walking per week showed positive association with life quality domains. Model 3 showed that the impact of fibromyalgia on the health status showed a moderate negative association with life quality domains. Based on the results obtained, the conclusion is that light physical activity, characterized as walking, represents a positive factor in the domains of quality of life in women with fibromyalgia and also, the impact of this disease on the health status of the patients is associated negatively areas of quality of life.301Este estudo analisou a associação entre atividade física, estado de saúde e qualidade de vida de mulheres com fibromialgia. Estudo transversal baseado na informação clínica de 177 mulheres (42,1 ± 8,6 anos) diagnosticadas com fibromialgia e auxiliadas em clínicas de reumatologia do setor privado do Sistema Único de Saúde (SUS) na cidade de Maringá-PR, Brasil. Os instrumentos utilizados foram o Questionário Internacional de Atividade Física (IPAQ), o Questionário de Impacto da Fibromialgia (FIQ) e o WHOQOL-Bref. A análise dos dados foi realizada através do teste de Mann-Whitney, correlação de Spearman e Análise de Equações Estruturais (p <0,05). Os resultados mostraram correlações positivas entre a atividade física e o domínio da qualidade de vida. O estado de saúde apresentou correlações negativas com a qualidade de vida. A Análise de Equação Estrutural revelou que os dias de caminhada por semana se associou positivamente com domínios de qualidade de vida. O modelo 3 mostrou que o impacto da fibromialgia no estado de saúde apresentou associação negativa e moderada com os domínios de qualidade de vida. Com base nos resultados obtidos, conclui-se que a atividade física leve, caracterizada pela caminhada, representa um fator positivo nos domínios da qualidade de vida em mulheres com fibromialgia e também, o impacto desta doença sobre o estado de saúde dos pacientes está associado negativamente domínios da qualidade de vida

Manganese Defective Clustering: Influence on the Spectroscopic Features of Ceria-Based Nanomaterials

The influence of manganese modification on the spectroscopic features of manganese-doped CeO2 systems synthesized by the microwave-assisted hydrothermal route and their correlation with the presence of O defective structures were verified, focusing on their interaction with poisonous atmospheres. Raman and electron paramagnetic resonance studies confirmed the presence of defective clusters formed by dipoles and/or quadrupoles. The number of paramagnetic species was found to be inversely proportional to the doping concentration, resulting in an increase in the Mn2+ signal, likely due to the reduction of Mn3+ species after the interaction with CO. X-ray photoelectron spectroscopy data showed the pure system with 33% of its cerium species in the Ce3+ configuration, with an abrupt decrease to 19%, after the first modification with Mn, suggesting that 14% of the Ce3+ species are donating one electron to the Mn2+ ions, thus becoming nonparamagnetic Ce4+ species. On the contrary, 58% of the manganese species remain in the Mn2+ configuration with five unpaired electrons, corroborating the paramagnetic feature of the samples seen in the electron paramagnetic resonance study