Dinâmica de deposição de serrapilheira, morfometria da copa e produção de raízes finas de clones híbridos de Eucalyptus urophylla sob estresse hídrico

The water deficit can be a limiting factor in the productivity of Eucalyptus spp. and the selection of adapted genotypes to these conditions is necessary. Therefore, understanding the adaptive capacity of genotypes in regions under water stress is crucial for the selection of genotypes. Thus, this work aimed to evaluate the litter deposition dynamics, crown development and fine root production of two hybrid clones of E. urophylla spp. The following were analyzed: (1) litter accumulation and its water retention capacity (CRH), (2) dendrometric growth and tree crown morphometry, and (3) biomass production of live and dead fine roots (0-25 and 25- 50 cm depth) during dry and rainy seasons. The litter deposition dynamics of clones was influenced by water seasonality, which was higher in the rainy season. For water retention capacity there were no differences. In turn, the genotypes showed adaptive differences, verified by the highest morphometric values of crown (ge, is and iev) in the dry season. Clone A had a higher significantly percentage of crown than clone B, whose leaf litter deposition was higher in the dry season. The highest production of fine root biomass was found in the 0-25 cm layer of the soil, being higher in clone B in both layers. So, the results open perspectives for further studies on the ecophysiology of the genetic materials of Eucalyptus spp and its applicability in forest genetic breeding for the selection of more productive and efficient genotypes for plantations in areas under water stress.O déficit hídrico pode limitar a produtividade do Eucalyptus spp. e selecionar genótipos adaptados a essas condições é necessário. Logo, compreender a capacidade adaptativa dos genótipos em regiões sob estresse hídrico é determinante para a seleção de materiais. Portanto, objetivou-se avaliar a adaptabilidade de clones híbridos de Eucalyptus spp. em duas épocas do ano (seca e chuvosa) situados em um teste clonal em Montes Claros, Minas Gerais. Para isso foi analisado: (1) acúmulo de serrapilheira e sua capacidade de retenção hídrica (CRH), (2) crescimento dendrométrico e morfometria da copa das árvores e (3) produção de biomassa de raízes finas vivas e mortas (0-25 e 25-50 cm profundidade) durante as épocas seca e chuvosa. A dinâmica de deposição da serrapilheira dos clones foi influenciada pela sazonalidade hídrica, no qual foi superior na época chuvosa. Para capacidade de retenção hídrica não houve diferenças. Por sua vez, os genótipos apresentaram diferenças adaptativas, constatadas pelos maiores valores morfométricos de copa (ge, is e iev) na estação seca. O clone A apresentou maior percentual de copa, significativamente maior que o clone B, com mais serapilheira foliar na época seca. A maior produção de biomassa de raízes finas foi encontrada na camada de 0-25 cm do solo, sendo superior no clone B em ambas as camadas. Assim, os resultados abrem perspectivas para maiores estudos quanto à ecofisiologia dos materiais genéticos de Eucalyptus spp. e sua aplicabilidade no melhoramento genético florestal para a seleção de genótipos mais produtivos e eficientes para plantios em áreas sob estresse hídrico

Detection, Transmission and Pathogenic Fungi in Chia Seeds

This template is designed using the previous setting; kindly copy and paste your text to this template. The study related to seed pathology is essential to know the sanitary quality, since the presence of pathogens in favor of seed can spread disease, and physiological influence the quality of seeds, resulting in low germination. Thus, this study aimed to identify the detection, transmission, and pathogenicity of fungi associated with the seeds of chia. The work was conducted in the Phytopathology Laboratory and experimental area of the Federal University of Tocantins, chia seeds produced being evaluated in Gurupi (Brazil) and Katueté (Paraguay). To check the sanitary quality of chia seed was used the method of the filter paper to the present lifting mycobiota which was subsequently isolated and cultured in a potato dextrose agar culture (BDA). For seed fungi, the transmission test to the plant was sowed 100 seeds of chia divided into four replicates of 25 seeds each. The seeds were sown in pots of 4 dm3 (four seeds per pot) evaluations were made to ten, twenty and thirty days after  emergence by observing the characteristic symptoms. The pathogenicity of fungi transported by the seed was evaluated by inoculation in the aerial part of seedlings. The fungi found associated with chia seeds were: Alternaria spp., Aspergillus spp., Bipolaris spp., Colletotrichum spp., Curvularia spp., Fusarium spp., Penicillium spp., Rhizoctonia spp, e Rhizopus spp. the fungus Colletotrichum spp. and Fusarium spp. They are transmitted to seedlings via seed. Genres Colletotrichum spp. and Fusarium spp. Are pathogenic to plants of chia

Kinetin and Nitrogen in Agronomic Characteristics of Soybean

The objective of this work was to evaluate the application of kinetin associated with nitrogen in coverage on the agronomic characteristics and soybean yield. In the 2016/2017 harvest, a 6x2 factorial scheme was used, six doses of kinetin (0; 0.30; 0.60; 0.90; 1.20; 1.50 g ha−1) and two doses of N (20 and 40 kg ha−1) and in the 2017/2018 harvest, factorial scheme 5x2 was used, five doses of kinetin   (0; 0.25; 0.75; 1.00; 1.25 g ha−1) and two doses of N (20 and 40 kg ha−1). Agronomic plant height characteristics, first pod insertion height, number of grains per plant, number of pods per plant, number of grains per pod, number of grains per pod, hundred-grain mass and grain yield were evaluated. The use of N alone and associated with kinetin increased the number of pods and grains in the 2016/2017 harvest. In the 2017/2018 crop, kinetin caused a reduction of 8.9% at plant height and N caused an increase in plant height and first pod insertion and reduced the number of pods and grains per plant, grains per pods and productivity

Perceived quality of life and associated factors in long COVID syndrome among older Brazilians: A cross‐sectional study

Funding information Ministério da Ciência, Tecnologia, Inovações e Comunicações - Brazil; Ministério da Saúde - Brazil; Conselho Nacional de Desenvolvimento Científico Tecnológico (CNPq) - Brazil, Grant/Award Number: 402882/2020–2; FCT—Fundação para a Ciência e a Tecnologia - Portugal: Scientific Employment Stimulus-Institutional Call, Grant/Award Number: CEECINST/00051/2018Aims and objectives This paper aims to: (a) determine the personal, sociodemographic, clinical, behavioural, and social characteristics of older Brazilians with clinical evidence of long COVID; (b) evaluate perceived quality of life and determine its association with personal, sociodemographic, behavioural, clinical and social variables; and (c) assess significant predictors of high perceived QoL. Background Given the inherent vulnerabilities of the ageing process, the older people are an at-risk group for both contagion of SARS-CoV-2 and the perpetuation of residual symptoms after infection, the so-called long COVID or post-COVID syndrome. Design A cross-sectional survey design using the STROBE checklist. Methods Brazilian older people with long COVID syndrome (n = 403) completed a phone survey measuring personal, sociodemographic, behavioural, clinical, and social characteristics, and perceived Quality of Life (QoL). Data were collected from June 2021–March 2022. A multiple linear regression model was performed to identify salient variables associated with high perceived QoL. Results The mean age of participants was 67.7 ± 6.6 years old. The results of the multivariate regression model showed that race, home ownership, daily screen time, musculoskeletal and anxiety symptoms, and work situation were the significant predictors of QoL among COVID-19 survivors. Conclusions Knowledge about the persistence of physical, emotional, and social symptoms of COVID-19 can help nurses and other healthcare providers to improve the management of survivors, bringing benefits to the whole society. Relevance to clinical practice Given the novelty of long-COVID and its heterogeneous trajectory, interventions focusing on the repercussions and requirements unique to more vulnerable older persons should be developed and these aspects should be included in public health recommendations and policymakers' concerns. Patient or Public Contribution No patient or public contribution was required to design, to outcome measures or undertake this research. Patients/members of the public contributed only to the data collection.info:eu-repo/semantics/publishedVersio

A epidemiologia da cardiomiopatia de Takotsubo no Brasil e os principais fatores de risco da cardiomiopatia de Takotsubo: The epidemiology of Takotsubo cardiomyopathy in Brazil and the main risk factors for takotsubo cardiomyopathy

A Cardiomiopatia de Takotsubo (CTT) é uma disfunção cardíaca reversível, a qual está relacionada, diretamente, ao estresse físico ou emocional. Objetiva-se através dessa pesquisa evidenciar os principais fatores de risco da CT. Trata-se de uma revisão sistemática realizada no motor de busca Biblioteca Virtual em Saúde (BVS) na base de dados das “Ciências em Saúde em Geral” (Scielo, Medline, Lilacs). Percebeu-se que que a CT apresenta uma ocorrência maior em mulheres na fase de pós-menopausa, onde são atingidas pelo estresse emocional, bem como a inserção de marcapasso também pode desencadear a doença. Entretanto, a etiologia da CT ainda é marcada por controvérsias, mas há concordância acerca do surgimento da CT estar relacionado com a abundância de catecolaminas circulantes

O trabalho da enfermagem em um serviço de controle de infecção hospitalar (SCIH): relato de experiência / The work of nursing in a hospital infection control service (SCIH): experience report

As infecções relacionadas à assistência à saúde (IRAS) representam um grande problema de saúde pública no Brasil e no mundo. Por isso, um dos campos que a enfermagem trabalha é no SCIH, realizando ações importantes para o combate de IRAS. Sendo assim, o artigo tem por objetivo relatar a experiência de acadêmicos de enfermagem da Universidade da Amazônia (UNAMA) em um SCIH de um hospital particular de Belém, Pará. Este estudo é descritivo com abordagem qualitativa, do tipo relato de experiência. Durante a experiência, notou-se a importância que a enfermagem possui no controle e prevenção das IRAS. De uma forma geral, percebeu-se a influência que um SCIH tem quando relacionado a qualidade do serviço do hospital, haja vista que, os profissionais seguem as normas estabelecidas, e isso influencia diretamente na segurança do paciente e do próprio trabalhador, trazendo benefícios para o paciente, colaboradores e serviços de saúde

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