Commitment to Work and its Relationship with Organizational Culture Mediated by Satisfaction

Purpose – The objective of this study is to analyze the mediating effect of satisfaction on the relationship between organizational culture and commitment at work. Design/methodology/approach – This paper adopts a quantitative and descriptive approach, applying an online questionnaire to employees of a public development bank operating in the Northeast of Brazil. The analysis method involved the use of structural equations modeling. Findings – The main results indicate that job satisfaction plays an important role in employee commitment, mediating the positive influence of organizational culture on commitment to work in its affective, instrumental, and normative dimensions in adhocratic cultures, and on affective commitment in clan cultures. They also indicate that satisfaction is a direct predictor of organizational commitment in the same way it mediates the relationship between culture and commitment. Originality/value – This paper contributes to increasing the theoretical knowledge about the relationships established between culture, satisfaction, and commitment. For the area of people management, this knowledge can favor organizational performance, allowing managers to act more accurately in each of these constructs

Casuística dos diagnósticos histopatológicos de cães e gatos atendidos no município de Natal, Rio Grande do Norte

Descrevem-se os diagnósticos histopatológicos de cães e gatos atendidos em Natal, Rio Grande do Norte, Brasil. Foram revisados os registros de biópsia de um laboratório de serviço patológico, dos quais se obtiveram informações sobre espécie, idade, sexo e perfil racial dos animais, além do padrão histopatológico das lesões. Para cálculo da faixa etária, considerou-se filhotes (até um ano de idade), adultos (de um a oito anos de idade) e idosos (acima de oito anos de idade). Os diagnósticos foram agrupados em lesões neoplásicas, inflamatórias e outros diagnósticos. Ao todo foram avaliadas 161 amostras referentes a 157 animais. Destes, 87,9% (138/157) corresponderam a cães e 12,1% (19/157) a gatos. 63,06% (99/157) corresponderam a fêmeas e 36,94% (58/157) a machos, enquanto 40,76% (64/157) eram adultos, 41,4% (65/157) eram idosos e 5,73% (9/157) eram jovens. 38,41% (53/138) dos caninos não tinha raça definida. 154 diagnósticos foram conclusivos, dos quais 63% (97/154) corresponderam a neoplasias, 22,08% (34/154) a inflamações e 14,94% (23/154) a outros diagnósticos. Quanto às neoplasias, o sistema tegumentar 48,45% (47/97) foi o mais afetado, seguido do sistema reprodutor e glândula mamária 32,99% (32/97) e oftalmológico 7,22% (07/97), destacando-se mastocitoma, lipoma, hemangioma e melanoma. Dentre as lesões inflamatórias, merecem destaque as alterações do sistema digestório e tegumentar, com ênfase para a gastroenterite linfoplasmocitária. No grupo outros diagnósticos, destacaram-se os infartos esplênicos, mucocele da vesícula biliar e as hiperplasias glandulares. Estudos que caracterizem o perfil histopatológico das lesões devem ser incentivados, pois fornecem um rol dos diagnósticos diferenciais para os veterinários da região

Casuística dos diagnósticos histopatológicos de cães e gatos atendidos no município de Natal, Rio Grande do Norte

The aim of this study was to describe the casuistic of histopathological diagnoses of dogs and cats seen in the city of Natal, Rio Grande do Norte, Brazil. For this purpose, the biopsy records of a pathological service laboratory were reviewed, and information related to the origin, records, age, sex and breed of the animals, as well as the histopathological pattern of the lesions, were obtained. A total of 161 samples from 158 animals were evaluated. Of these, 87.35% corresponded to dogs and 12.02% to cats, with females (62.7%) being more affected than males (36.7%). Adult and elderly animals (40.5% to 41.1%) prevailed at the expense of young animals. In relation to the dog breeds, Poodle, Labrador, Yorkshire and Pitbull stood out. Overall, the integument was the most affected system, followed by the mammary gland and gastrointestinal tract. Regarding the type of lesion, neoplasms stood outMast cell tumors, lipomas, hemangiomas and melanomas were the main skin neoplasms observed in dogs, while squamous cell carcinoma, fibrosarcoma and sebaceous carcinoma were observed in cats. Dermatitis and nodular panniculitis, foreign body reactions and inflammatory lesions in the gastrointestinal tract were expressive, highlighting chronic gingivostomatitis in cats and lymphoplasmacytic gastroenteritis in dogs. The histopathological patterns visualized corroborated what was exposed in the literature. Studies that aim to characterize the histopathological profile of the lesions should be encouraged, as they can provide a list of the most common differential diagnoses, and to serve as a tool for understanding the main diseases in the region.Descrevem-se os diagnósticos histopatológicos de cães e gatos atendidos em Natal, Rio Grande do Norte, Brasil. Foram revisados os registros de biópsia de um laboratório de serviço patológico, dos quais se obtiveram informações sobre espécie, idade, sexo e perfil racial dos animais, além do padrão histopatológico das lesões. Para cálculo da faixa etária, considerou-se filhotes (até um ano de idade), adultos (de um a oito anos de idade) e idosos (acima de oito anos de idade). Os diagnósticos foram agrupados em lesões neoplásicas, inflamatórias e outros diagnósticos. Ao todo foram avaliadas 161 amostras referentes a 157 animais. Destes, 87,9% (138/157) corresponderam a cães e 12,1% (19/157) a gatos. 63,06% (99/157) corresponderam a fêmeas e 36,94% (58/157) a machos, enquanto 40,76% (64/157) eram adultos, 41,4% (65/157) eram idosos e 5,73% (9/157) eram jovens. 38,41% (53/138) dos caninos não tinha raça definida. 154 diagnósticos foram conclusivos, dos quais 63% (97/154) corresponderam a neoplasias, 22,08% (34/154) a inflamações e 14,94% (23/154) a outros diagnósticos. Quanto às neoplasias, o sistema tegumentar 48,45% (47/97) foi o mais afetado, seguido do sistema reprodutor e glândula mamária 32,99% (32/97) e oftalmológico 7,22% (07/97), destacando-se mastocitoma, lipoma, hemangioma e melanoma. Dentre as lesões inflamatórias, merecem destaque as alterações do sistema digestório e tegumentar, com ênfase para a gastroenterite linfoplasmocitária. No grupo outros diagnósticos, destacaram-se os infartos esplênicos, mucocele da vesícula biliar e as hiperplasias glandulares. Estudos que caracterizem o perfil histopatológico das lesões devem ser incentivados, pois fornecem um rol dos diagnósticos diferenciais para os veterinários da região

Estudos morfológico e morfométrico do coração e da artéria aorta em ratos adultos desmamados precocemente / Morphological and morphometric studies of the heart and aorta artery in preciously weed adult rats

Objetivo: Realizar uma investigação acerca dos efeitos do desmame precoce sobre a morfologia e morfometria do coração e da artéria aorta de ratos adultos submetidos ao desmame precoce no 15° dia de vida pós-natal. Método: Foram utilizados 16 ratos machos da linhagem Wistar. Os grupos experimentais foram formados pelos grupos DP15 (desmame no 15° dia pós-natal) e C30 (desmame no 30° dia pós-natal), com o 8 ratos cada grupo. Após o desmame, os animais foram separados em gaiolas individuais e no 100° dia de vida pós-natal, foram eutanasiados através da pefusão intracardíaca. O coração e a artéria aorta foram coletados e posteriormente processados para a microscopia de luz. As análises foram realizadas a partir de fotomicrografias e do software ImageJ. Foram avaliados o número de cárdiomiócitos, a área nuclear e a espessura da aorta. Resultado: Os resultados mostraram que o desmame precoce promoveu alterações significativas nas variáveis analisadas, provocando a redução da área nuclear dos cardiomiócitos (C: 16,77µm ± 5,95; DP: 12,48µm ± 7,03), hiperplasia do miocárdio (C: 30,42µm ± 11,38; DP: 48,87µm ± 13,62), diminuição na espessura da artéria aorta (C: 168,56µm ± 46,61; DP: 113,81µm ± 28,01) (C: 130,69µm ± 40,75; DP: 81,62µm ± 19,89). Baseado em nossos resultados podemos sugerir que o desmame precoce é uma agressão perinatal capaz de provocar alterações na morfologia e morfometria do coração e da artéria aorta de ratos. 

Mapping density, diversity and species-richness of the Amazon tree flora

Using 2.046 botanically-inventoried tree plots across the largest tropical forest on Earth, we mapped tree species-diversity and tree species-richness at 0.1-degree resolution, and investigated drivers for diversity and richness. Using only location, stratified by forest type, as predictor, our spatial model, to the best of our knowledge, provides the most accurate map of tree diversity in Amazonia to date, explaining approximately 70% of the tree diversity and species-richness. Large soil-forest combinations determine a significant percentage of the variation in tree species-richness and tree alpha-diversity in Amazonian forest-plots. We suggest that the size and fragmentation of these systems drive their large-scale diversity patterns and hence local diversity. A model not using location but cumulative water deficit, tree density, and temperature seasonality explains 47% of the tree species-richness in the terra-firme forest in Amazonia. Over large areas across Amazonia, residuals of this relationship are small and poorly spatially structured, suggesting that much of the residual variation may be local. The Guyana Shield area has consistently negative residuals, showing that this area has lower tree species-richness than expected by our models. We provide extensive plot meta-data, including tree density, tree alpha-diversity and tree species-richness results and gridded maps at 0.1-degree resolution

The complete genome sequence of Chromobacterium violaceum reveals remarkable and exploitable bacterial adaptability

Chromobacterium violaceum is one of millions of species of free-living microorganisms that populate the soil and water in the extant areas of tropical biodiversity around the world. Its complete genome sequence reveals (i) extensive alternative pathways for energy generation, (ii) ≈500 ORFs for transport-related proteins, (iii) complex and extensive systems for stress adaptation and motility, and (iv) wide-spread utilization of quorum sensing for control of inducible systems, all of which underpin the versatility and adaptability of the organism. The genome also contains extensive but incomplete arrays of ORFs coding for proteins associated with mammalian pathogenicity, possibly involved in the occasional but often fatal cases of human C. violaceum infection. There is, in addition, a series of previously unknown but important enzymes and secondary metabolites including paraquat-inducible proteins, drug and heavy-metal-resistance proteins, multiple chitinases, and proteins for the detoxification of xenobiotics that may have biotechnological applications

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

Author correction: One sixth of Amazonian tree diversity is dependent on river floodplains

In the version of the article initially published, the affiliation of Edgardo Manuel Latrubesse was incorrect and has now been amended to Environmental Sciences Graduate Program-CIAMB, Federal University of Goiás, Goiânia, Brazil in the HTML and PDF versions of the article

Unraveling Amazon tree community assembly using Maximum Information Entropy: a quantitative analysis of tropical forest ecology

In a time of rapid global change, the question of what determines patterns in species abundance distribution remains a priority for understanding the complex dynamics of ecosystems. The constrained maximization of information entropy provides a framework for the understanding of such complex systems dynamics by a quantitative analysis of important constraints via predictions using least biased probability distributions. We apply it to over two thousand hectares of Amazonian tree inventories across seven forest types and thirteen functional traits, representing major global axes of plant strategies. Results show that constraints formed by regional relative abundances of genera explain eight times more of local relative abundances than constraints based on directional selection for specific functional traits, although the latter does show clear signals of environmental dependency. These results provide a quantitative insight by inference from large-scale data using cross-disciplinary methods, furthering our understanding of ecological dynamics