SOCIEDADE LIMITADA: LIMITAÇÕES PARA CONTRATAÇÃO ENTRE CONJUGES

O artigo procura dar tratativa a um tema que, apesar de em uma análise exordial parecer novo, vinha há muitos anos sendo discutido e debatido em sede de construções eargumentações doutrinárias e jurisprudenciais contrárias e favoráveis. O referido tema, extrai sua importância de constatações embasadas em acontecimentos sociais ecomportamentos populacionais observados nos tempos hodiernos, com cada vez mais freqüência e explicitude, diferentemente do que ocorria frente à mentalidade de uma antiga sociedade brasileira completamente machista, onde os mesmos eram recriminados. Consubstancia-se tal tema, na proibição da contratação de sociedades entre cônjuges, secasados sob certos regimes parametrizadores da administração dos bens na vigência da sociedade conjugal intramatrimônio, quais sejam, o da comunhão universal e o da separação obrigatória de bens, proibição esta instituída pelo artigo 977 do atual Código Civil e que, segundo a unissonicidade da doutrina, apesar das nobres intenções primárias, vem em contra-mão ao desenvolvimento, causar confusão e instabilidade jurídico-social, porquantodeixa de observar conquistas duramente alcançadas ao longo de muitos anos de evolução. Traremos a exame os delineamentos históricos do tema, os motivos porque tem a norma causado problemas, e se há possibilidade de resolução para a questão

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

AVALIAÇÃO DO POTENCIAL ANTIFÚNGICO E AÇÃO MODULADORA DO EXTRATO AQUOSO DAS FOLHAS DE Ricinus communis L. (Mamona) SOBRE CEPAS DE Candida spp.

Infecções fúngicas ocasionadas por espécies de Candida são consideradas graves problemas patológicos. A mamona (Ricinus communis L.) é apontada como espécie versátil detentora de várias propriedades medicinais, entre estas, tratamento de infecções de pele e diarreia. Este trabalho objetivou avaliar a atividade antifúngica do Extrato Aquoso das Folhas de R. communis L. (EAFRC). Na metodologia aplicada para os testes, empregou-se a microdiluição em microplacas para estabelecer a Concentração Inibitória de 50% dos micro-organismos (CI50) dos produtos isolados e para os testes de modulação em combinação com fluconazol, com resultados obtidos através da leitura em espectrofotômetro com leitor de ELISA. O subcultivo em placa de Petri usado para determinar a Concentração Fungicida Mínima (CFM). Os resultados não apresentaram CFM para as concentrações testadas do extrato, a CIM foi estabelecida em uma concentração bastante elevada do produto natural, nos testes com o produto natural também não houve a constatação de IC50, não havendo uma concentração capaz de inibir 50% dos micro-organismos. Nos resultados da modulação do fluconazol o EAFRC mostrou-se antagônico reduzindo o efeito do fármaco quando combinado a este. Os resultados obtidos, entretanto, não excluem a possibilidade de a planta possuir propriedades fungicidas, pois uma mesma planta pode apresentar resultados diferentes na produção de extratos a partir de suas raízes e caules, ou quando usados contra linhagens fúngicas diferentes das testadas, sendo assim os estudos sobre os potenciais da planta devem continuar para se estabelecer novos resultados

Antibacterial enhancement of antibiotic activity by Enterolobium contortisiliquum (Vell.) Morong

Objective: To identify the main chemical classes of compounds from aqueous extract of Enterolobium contortisiliquum (E. contortisiliquum) seed bark and to evaluate its antibacterial activity, as well as its potential to increase the activity of antibiotics against strains of Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli. Methods: Different classes of compounds in the aqueous extract of E. contortisiliquum were evaluated based on the visual changes in the coloration and the formation of precipitate after the addition of specific reagents. The antibacterial activity of the extract and its potential to increase of antibiotic activity of antibiotics drugs, gentamicin and norfloxacin was determined by using the microdilution method. Results: Our results demonstrated that the following secondary metabolites were presented in E. contortisiliquum seed bark: flavones, flavonols, xanthones, flavononols, chalcones, aurones, flavones and catechins. The extract itself had very low antibacterial activity against all bacterial strains tested (MIC ≥ 1 024 μg/mL), but there was an increase in the antibiotic activity of gentamicin and norfloxacin when combined in the sub-inhibitory concentration (i.e., MIC/8). Conclusions: Our data suggests that E. contortisiliquum seed bark may be an alternative source for new drugs with the potential to increase antibiotic activity against different strains of bacteria

The Silent Threat of Non-native Fish in the Amazon: ANNF Database and Review

Non-native fish (NNF) can threaten megadiverse aquatic ecosystems throughout the planet, but limited information is available for the Amazon Region. In this study we review NNF data in the Amazonian macroregion using spatiotemporal records on the occurrence and the richness of NNF from a collaborative network of 35 regional experts, establishing the Amazon NNF database (ANNF). The NNF species richness was analyzed by river basin and by country, as well as the policies for each geopolitical division for the Amazon. The analysis included six countries (Brazil, Peru, Bolivia, Ecuador, Venezuela, and Colombia), together comprising more than 80% of the Amazon Region. A total of 1314 NNF occurrence records were gathered. The first record of NNF in this region was in 1939 and there has been a marked increase in the last 20 years (2000–2020), during which 75% of the records were observed. The highest number of localities with NNF occurrence records was observed for Colombia, followed by Brazil and Bolivia. The NNF records include 9 orders, 17 families and 41 species. Most of the NNF species are also used in aquaculture (12 species) and in the aquarium trade (12 species). The most frequent NNF detected were Arapaima gigas, Poecilia reticulata and Oreochromis niloticus. The current data highlight that there are few documented cases on NNF in the Amazon, their negative impacts and management strategies adopted. The occurrence of NNF in the Amazon Region represents a threat to native biodiversity that has been increasing “silently” due to the difficulties of large-scale sampling and low number of NNF species reported when compared to other South American regions. The adoption of effective management measures by decision-makers is urgently needed and their enforcement needed to change this alarming trend and help protect the Amazon’s native fish diversity.

O Protagonismo Infantojuvenil nos Processos Educomunicativos

Neste volume “O protagonismo infantojuvenil nos processos educomunicativos”, reunimos 53 artigos que transitam sobre a temática do protagonismo infantojuvenil em diversas experiências e processos educomunicativos e para facilitar sua leitura e busca por temas de seu interesse, eles estão organizados em 8 capítulos que abordam a educomunicação a partir do fazer das crianças e da apropriação da produção midiática. Expressão artística, rádio, vídeo, jornalismo, cultura digital, redes sociais entre outros são os temas abordados pelos autores destes trabalhos. convidamos o leitor a mergulhar nesta jornada educomunicativa, vivendo e revivendo junto conosco essas experiências vividas por outros, refletindo em cada texto sobre como estamos, como evoluímos e como seguimos os passos daqueles que com sua ousadia, amor e luta elaboraram os fundamentos da educomunicação