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Total 29880 results found since Jan 2013.
Impact of ecological stages on the soil microbiota and soil abiotic factors in tropical and subtropical Brazilian regions
Arch Microbiol. 2023 Sep 22;205(10):335. doi: 10.1007/s00203-023-03677-8.ABSTRACTOur aim was to test if ecological stages may influence the arbuscular mycorrhizal fungi (AMF), nematodes, and the soil chemical properties in agroforestry systems (AF), unassisted forest restoration (UFR), and natural ecosystem (Ne) located in the Brazilian Tropical and Subtropical regions. We collected soil samples to determine AMF, nematodes, soil pH, P, and soil organic carbon (SOC). AMF and nematode richness in the AF and Ne were similar in the tropical region. The redundancy analysis (RDA) indicated that the abundance of AMF and soil nema...
Source: Archives of Microbiology - September 22, 2023 Category: Microbiology Authors: Tancredo Augusto Feitosa de Souza Lucas J ónatan Rodrigues da Silva L ídia Klestadt Laurindo Gislaine Dos Santos Nascimento Milton C ésar Costa Campos Source Type: research
Hwiccewyrm trispiculum gen. et sp. nov., a new leptopleuronine procolophonid from the Late Triassic of southwest England
Anat Rec (Hoboken). 2023 Sep 21. doi: 10.1002/ar.25316. Online ahead of print.ABSTRACTThe fissure fill localities of southwest England and South Wales are well-known for preserving rich assemblages of predominantly small-bodied Late Triassic to Early Jurassic tetrapods, but many aspects of these assemblages remain contentious. The age of the Late Triassic fissures is disputed, with some lines of argument suggesting a latest Triassic (Rhaetian) age, whereas other evidence suggests they may be as old as Carnian. The fissures have been hypothesized by some workers to have formed on an archipelago, with island effects invoked ...
Source: Anatomical Record - September 22, 2023 Category: Anatomy Authors: Richard J Butler Luke E Meade Terri J Cleary Kai T McWhirter Emily E Brown Tom S Kemp Juan Benito Nicholas C Fraser Source Type: research
Insecticidal activity of extracts of < em > handroanthus impetiginosus < /em > on < em > Plutella xylostella < /em > (Lepidoptera: plutellidae) larvae
Nat Prod Res. 2023 Sep 21:1-8. doi: 10.1080/14786419.2023.2260069. Online ahead of print.ABSTRACTPlutella xylostella is considered the main pest of cabbage in Brazil and the world, causing damage of up to 100%. Thus, this study evaluated the insecticidal activity of extracts obtained from the fruits, seeds, bark, leaves, and flowers of Handroanthus impetiginosus against the diamondback moth, P. xylostella larvae. The seed extract showed the highest mortality (97.0%) compared to the control treatment. The LC50 values indicated that the seed and flower extracts (0.01003 and 0.01288 mg/L respectively) assumed the highest toxi...
Source: Natural Product Research - September 21, 2023 Category: Biochemistry Authors: Andriely B Silva Daniel L Montagnini Albert Katchborian-Neto Jo ão V Andrade Hallana A Manuquian Pedro S S R Cavallari Samarah G Almeida Enes P Barbosa Wilson R Cunha Marisi G Soares Mario F C Santos M árcio L A Silva Alessandra M Vacari Source Type: research
Biological aspects and first record of Leucothyreus alvarengai Frey (Coleoptera: Melolonthidae: Rutelinae) in sugarcane (Saccharum officinarum L) (Poaceae) fields of Mato Grosso do Sul state, Brazil
An Acad Bras Cienc. 2023 Sep 18;95(4):e20191357. doi: 10.1590/0001-3765202320191357. eCollection 2023.ABSTRACTLarvae of Leucothyreus spp. have been reported causing damage to several crops in Brazil. From May 2012 to April 2013, adults and immatures of Leucothyreus alvarengai Frey (Coleoptera: Melolonthidae: Rutelinae) samples were obtained from sugarcane (Saccharum officinarum L.) (Poaceae) fields in the municipalities of Naviraí and Nova Andradina, Mato Grosso do Sul, Brazil. Adults were collected with the aid of light traps, whereas immatures were sampled by opening two trench sizes (30 x 30 x 30 cm and 80 x 50 x 40 cm...
Source: An Acad Bras Cienc - September 20, 2023 Category: Science Authors: Gilmar V Coutinho Cr ébio J Ávila Elias S Gomes Eduardo N Costa S érgio R Rodrigues Ivana F DA Silva Source Type: research
Environmental characterization of home range of Antillean manatees (Trichechus manatus) released in northeastern Brazil
This study characterized the home range areas of six rehabilitated manatees released in northeastern Brazil. The activities were conducted in the states of Paraíba, Sergipe, and Bahia. Type of environment, substrate, depth, aquatic vegetation, physicochemical variables of the water, presence of solid waste, human settlements, and watercraft were considered to characterize the areas. The results showed a manatee preference for sheltered areas. Resources were available in larger quantities in the dry season, and a reduction in the availability of food items was fund over the years. High overlap was found in the multivariate...
Source: An Acad Bras Cienc - September 20, 2023 Category: Science Authors: Sebasti ão S Dos Santos Iara S Medeiros Isis C DE Almeida Vanessa A Rebelo Allan O B Carvalho Rafael Menezes Miriam Marmontel Jo ão Carlos G Borges Source Type: research
First report of putative Leishmania RNA virus 2 (LRV2) in Leishmania infantum strains from canine and human visceral leishmaniasis cases in the southeast of Brazil
CONCLUSIONS: To the best of our knowledge, this is the first detection of LRV2 in the New World.PMID:37729273 | DOI:10.1590/0074-02760230071
Source: Memorias do Instituto Oswaldo Cruz - September 20, 2023 Category: Infectious Diseases Authors: Felipe Dutra R êgo Eduardo S érgio da Silva Valeriana Valadares Lopes Rafael Gon çalves Teixeira-Neto Vin ícius Silva Belo Ant ônio Augusto Fonseca Júnior Diego Andrade Pereira Heber Paulino Pena M árcia Dalastra Laurenti Gabriela V Ara újo V âni Source Type: research
Microbiological evaluation of homemade mayonnaise and self-serve acai sold in Aragua ína, Tocantins
In this study, samples of homemade spiced mayonnaise and self-serve acai sold in the city of Araguaína, Tocantins, Brazil were analyzed for microbiological contaminants. Acai was collected from 10 stores, one sample from each store, and tested for mold, yeast, and coliforms, as well as coliform identification and total and thermotolerant coliform counts. Mayonnaise was collected from 20 snack bars, one sample from each. These samples were inoculated on MacConkey and Salmonella Shigella agar plates, and the plates were analyzed for growth. Salmonella spp. were detected in some Mayonnaise samples, and coliforms were detecte...
Source: Braz J Biol - September 20, 2023 Category: Biology Authors: M J M Paiva M L R Silva M R Alcantara F B S Santos J V R Costa R F Diogo L T F Silva A L Santos E H S Guedes P O Vellano C C R G N Magalh ães I A M Damasceno Source Type: research
Unonopsis guatterioides: morphological and chemical characteristics of its fruits and seeds, and germination processes under experimental conditions
This study aimed to evaluate the morphometry of seeds and fruits, their chemical composition, and the germination at different temperatures using seeds subjected to tegumentary dormancy break from fruits collected in a semi-deciduous seasonal forests in Mato Grosso do Sul, Brazil. The fruits under ripening showed a higher number of secondary metabolites and higher phenolic compounds. Morphometry results indicated that most seeds have length between 3.5 and 5.6 (81.3%), width between 8.1 and 9.0 mm (85.0%) and average weight of 0.28 g. The results indicate that there is a greater number of fruits with length ranging between...
Source: Braz J Biol - September 20, 2023 Category: Biology Authors: A K M Oliveira R Matias J C Pina Source Type: research
Gill and hepatic histological alterations in Sciades herzbergii resulting from trace element contamination in the Port of S ão Luiz, Brazil
The objective of this study was to evaluate, through changes in the gills and livers of Sciades herzbergii, the environmental contamination to which estuarine organisms are exposed in two areas in São Marcos Bay - MA. Two collection areas located in São Marcos Bay were selected for this study: A1, an area close to the Port Complex, and A2, an area on Caranguejos Island (included in the Environmental Protection Area of Baixada Maranhense). Collections were carried out during rainy and dry periods. Sediments (for trace element analyses), surface water (for physico-chemical analyses), and specimens of S. herzbergii (for bio...
Source: Braz J Biol - September 20, 2023 Category: Biology Authors: E B Ribeiro I M A Lima F C M Carvalho-Neto I C S Bezerra L C Sodr é R N F Carvalho-Neta Source Type: research
Pathogens and microorganisms in the mangrove oyster Crassostrea gasar cultivated in an estuarine environment in Northeast Brazil
Braz J Biol. 2023 Sep 15;83:e272789. doi: 10.1590/1519-6984.272789. eCollection 2023.ABSTRACTEstuaries are important ecosystems due to the ecological services they provide, acting as nurseries for many species of fish and invertebrates, and are also used as environments for the extraction and cultivation of mollusks. Oysters are animals that filter water to obtain oxygen and nutrients. In this process, they can bioaccumulate microorganisms and chemical substances in their tissues. The growth of mollusk culture in Northeastern Brazil requires the health identification of cultivated oysters through the quantification of the ...
Source: Braz J Biol - September 20, 2023 Category: Biology Authors: D C S Mendes D T A Rodrigues H M Gomes T M Lenz C M Silva I G Antonio Source Type: research
A food interaction network between psittacines and plants in an urban area in the city of S ão Carlos - SP, southeastern Brazil
Braz J Biol. 2023 Sep 15;83:e269353. doi: 10.1590/1519-6984.269353. eCollection 2023.ABSTRACTThe Psittacidae presents a great diversity of species in the Neotropical region performing fundamental ecological functions for ecosystems. These frugivorous birds can occupy different positions in the antagonistic-mutualistic gradient of food interactions, acting as predators and/or as seed dispersers. Little is known about bird-plant ecological interaction networks focusing on psittacines in urban environments, which may compromise the management of natural areas in anthropic landscapes and hinder the planning of conservation str...
Source: Braz J Biol - September 20, 2023 Category: Biology Authors: A M Leoni M G Reis M M Dias Filho Source Type: research
Radiometric analysis of Brazilian commercial ornamental stones
Appl Radiat Isot. 2023 Sep 6;201:111020. doi: 10.1016/j.apradiso.2023.111020. Online ahead of print.ABSTRACTThe term "commercial ornamental stones" comprises different natural stones with different mineralogical components and the distribution and amount of natural radionuclides depended on the mineralogy. Few studies on natural radioactivity in ornamental stones carried out in Rio de Janeiro (Brazil) and the present work were carried out in order to analyze the distribution of activity concentration in these materials. The activity concentration of 238U, 235U, 226Ra, 232Th and 40K in Ornamental Stones measured using γ-ra...
Source: Applied Radiation and Isotopes - September 20, 2023 Category: Radiology Authors: Leandro B Silva Lucas Faria da Silva Rog ério A Filgueiras Jardel L Talhofer Ademir X Silva Source Type: research
Association between offensive behaviors and burnout and depression risks in health workers
CONCLUSION: the occurrence of offensive behaviors in health work is frequent and characteristic and burnout and depressive symptoms respectively increased 4.73 and 1.05 times the chances of workers suffering these offensive behaviors in the work environment.PMID:37729247 | DOI:10.1590/1518-8345.6683.3986
Source: Revista Latino-Americana de Enfermagem - September 20, 2023 Category: Nursing Authors: Luiza Salvador Rohwedder Fabio Leandro da Silva Bianca Biason Albuquerque Ros ângela Sousa Tatiana de Oliveira Sato Vivian Aline Mininel Source Type: research
Performance patterns of primary health care in the face of COVID-19 in Brazil: characteristics and contrasts
This study aims to contrast two extreme standards of PHC performance in the fight against COVID-19 in Brazil, comparing them with the profiles of the corresponding municipalities and characteristics of the organization of services. Based on the results of a cross-sectional national survey with a representative sample of UBSs, we created a synthetic index to evaluate how PHC performs against COVID-19 called CPI, composed of axes of health surveillance and social support (collective dimension) and of COVID-19 care and continuity of care (individual dimension). Of the 907 surveyed UBSs, 120 were selected, half of which had th...
Source: Cadernos de Saude Publica - September 20, 2023 Category: International Medicine & Public Health Authors: Simone Schenkman Aylene Emilia Moraes Bousquat Luiz Augusto Facchini C élia Regina Rodrigues Gil L ígia Giovanella Source Type: research
Spatial analysis of maternal morbidity and mortality in users of the Brazilian Unified National Health System in the city of Rio de Janeiro, Brazil, 2014-2016
The objective of this study is to analyze the maternal morbidity and mortality of women treated in hospitals of the Brazilian Unified National Health System (SUS) in the city of Rio de Janeiro in the period 2014-2016. An ecological study was conducted using data from the Brazilian Information System on Live Birth (SINASC), the Brazilian Mortality Information System (SIM), and the Brazilian Hospital Information System (SIH/SUS). For the analysis of the maternal mortality ratio (MMR), data from the SIM were used. For the analysis of maternal morbidity, World Health Organization criteria were used to estimate the ratios of ma...
Source: Cadernos de Saude Publica - September 20, 2023 Category: International Medicine & Public Health Authors: Heloisa Ferreira Dos Santos Correa Rosa Maria Soares Madeira Domingues Maria de F átima Pina Source Type: research
