547,690 results match your criteria: "Brazil; Hospital Municipal Vila Santa Catarina[Affiliation]"

Crab urine as biomonitoring tools for pollution: A state-of-the-art review of methods, organic contaminant levels, and comparisons between spilled and unspilled areas.

Mar Pollut Bull

December 2024

Laboratory for Assessment of Organic Contaminants (LACOr), Institute of Marine Sciences-Federal University of Ceará (LABOMAR-UFC), Av. Abolição, 3207-Meireles, CEP: 60165-081 Fortaleza, CE, Brazil; Tropical Marine Sciences Program (PPGCMT/LABOMAR/UFC), Brazil; Programa de Pós-graduação em Ciências Naturais/Ceará State University (PPGCN/UECE), Brazil. Electronic address:

Article Synopsis
  • This study systematically reviews methods for extracting and analyzing organic contaminants in crab urine, which are essential due to crabs' role as bioindicators of aquatic contamination.
  • Although harmful substances like PCBs and pesticides are known to affect ecosystems, most studies have focused mainly on PAHs, leaving a significant research gap.
  • The perception that collecting crab urine is difficult, along with insufficient methodologies in existing literature, highlights the need for more extensive research to improve ecological understanding and environmental monitoring efforts.
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Introduction: Pregnancy comprises a period of 41 weeks, in which the female body undergoes several physiological, hormonal and anatomical changes that can generate changes in skin temperature.

Objective: To describe the thermal profile of pregnant women during the first, second and third trimester of pregnancy.

Method: This is a cross-sectional observational study.

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Scientific knowledge about gene expression in ruminants under heat stress - A scientometric review.

J Therm Biol

December 2024

Graduate Program in Animal Science (PPZ) - Unioeste/Universidade Tecnológica Federal Do Paraná, Dois Vizinhos, Paraná, Brazil. Electronic address:

Heat stress can alter the expression of genes in the individual's molecular response. The identification of these genes makes it possible to better understand the molecular response, identifying biomarker genes and indirect response pathways that can help with genetic improvement studies, animal welfare, separating more thermotolerant varieties and mitigating the effects of heat stress. The aim of this scientometric review was to characterize the state of the art of scientific research into gene expression in ruminants under heat stress, to define the most studied species, biology systems and genes, as well as the related biological pathways and processes.

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Synthesis and in vitro leishmanicidal activity of novel N-arylspermidine derivatives.

Bioorg Chem

December 2024

Universidad de Buenos Aires, CONICET, Cátedra de Química Orgánica II, Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Junín 956, 1113 Buenos Aires, Argentina. Electronic address:

This work describes the synthesis and biological evaluation of hitherto unknown N-arylspermidine derivatives 3. Compounds 3 were efficiently prepared from cyclic amidines through a novel synthetic approach comprising alkylation with ω-halonitriles followed by reduction. The cyclic N-arylamidine directs the alkylation to the unsubstituted nitrogen and also provides the N-benzyl group present in the triamine after simultaneous reduction of the resulting quaternary salt 2 and the cyano group.

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Effects of climate change on the occurrence and distribution of Western equine encephalitis virus in South America.

Public Health

December 2024

Department of Epidemiology, School of Public Health, University of Sao Paulo, Av. Dr. Arnaldo, 715, CEP 05509-300, São Paulo, SP, Brazil.

Objectives: The Western equine encephalitis virus (WEEV) is a globally relevant vector-borne pathogen that causes encephalitis. The role of environmental variables in the epidemiology of WEEV has become greater in the context of climate change. In December 2023, a significant resurgence of WEEV began in South America, with major ongoing outbreaks in Argentina and Uruguay.

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Immunodominant Molecules for the Immunodiagnosis of Strongyloides stercoralis Infection.

Diagn Microbiol Infect Dis

December 2024

Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Brazil. Electronic address:

Article Synopsis
  • The study focused on identifying key immune molecules for diagnosing S. stercoralis infections using serum samples tested with specific antigens (AgS and AgM).
  • Results from IgG-ELISA showed decent sensitivity (82.3 to 85.3%) and varying specificity (60.0 to 93.3%), but some cross-reactivity with other helminth infections was noted.
  • A specific 140 kDa protein from AgS demonstrated perfect sensitivity and specificity without cross-reactivity, indicating its potential for creating reliable immunodiagnostic tests for strongyloidiasis.
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Construction of an instrument to evaluate the quality of hospital care provided in burns units in Brazil: A Delphi study.

Burns

November 2024

Programa de Pos Graduacao em Ciencias do Movimento Humano e Reabilitacao, Universidade Evangelica de Goias, Anapolis, Goias, Brazil; Universidade de Brasilia (UnB), Ceilandia Sul Campus Universitario, Distrito Federal, Brazil.

Background: Providing excellent care to patients with acute burns can result in lower mortality and disability in the long-term. There are no specific instruments to evaluate the quality of care provided at this stage of treatment. This study aims to create an instrument to evaluate the quality of hospital care provided to patients with acute burns in Brazil.

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Purpose: To evaluate the diagnostic ability and methodological quality of ML models in detecting Pancreatic Ductal Adenocarcinoma (PDAC) in Contrast CT images.

Method: Included studies assessed adults diagnosed with PDAC, confirmed by histopathology. Metrics of tests were interpreted by ML algorithms.

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New records of Spelaeorhynchus praecursor Neumann, 1902 (Mesostigmata: Spelaeorhynchidae) in the Brazilian Caatinga.

Syst Parasitol

December 2024

Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil.

The Neotropical bat-ectoparasite family Spelaeorhynchidae comprises seven species into in one genus. The species Spelaeorhynchus praecursor is the most distributed in the region, parasitizing phyllostomid bats of the subfamilies Carolliinae, Glossophaginae and Stenodermatinae. The present study expands the known geographic distribution of this species, providing new host records, as well as the first SEM images detailing the main characteristics of this species.

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SETDB1: an emerging target for anticancer drug development.

Future Med Chem

December 2024

Laboratório de Integração entre Técnicas Experimentais e (LITEC), Computacionais no Planejamento de Fármacos, Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil.

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Creatine monohydrate supplementation (CrM) is a safe and effective intervention for improving certain aspects of sport, exercise performance, and health across the lifespan. Despite its evidence-based pedigree, several questions and misconceptions about CrM remain. To initially address some of these concerns, our group published a narrative review in 2021 discussing the scientific evidence as to whether CrM leads to water retention and fat accumulation, is a steroid, causes hair loss, dehydration or muscle cramping, adversely affects renal and liver function, and if CrM is safe and/or effective for children, adolescents, biological females, and older adults.

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The purpose of the present study was to understand how executives responsible for Diversity and Inclusion construct their identities while occupying positions of "Marginal Leadership," and how they deal with threats to such identities. We conducted qualitative and inductive research with Brazilian executives in 66 organizations, focusing on their experiences as leaders. In our resulting model, we theorized that leaders in positions of Marginal Leadership demonstrate little role clarity, resources, and confidence for the exercise of their activities, suffering threats to their identities, which are not observed in executives occupying positions in more traditional functions such as Finance, Production, and Marketing.

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Background: Infections and sepsis are leading causes of morbidity and mortality in women during pregnancy and the post-pregnancy period. Using data from the 2017 WHO Global Maternal Sepsis Study, we explored the use of early warning systems (EWS) in women at risk of sepsis-related severe maternal outcomes.

Methods: On April 27, 2023, we searched the literature for EWS in clinical use or research in obstetric populations.

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One interesting and elusive two-coupled oscillator problem.

Neurobiol Sleep Circadian Rhythms

May 2025

Instituto de Biociências, Departamento de Fisiologia, Universidade de São Paulo, SP, Brazil.

Chronobiology experiments often reveal intriguing non-linear phenomena, which require mathematical models and computer simulations for their interpretation. One example is shown here, where the two circadian oscillators located in the eyes of the mollusk were isolated and measured . By maintaining one eye under control conditions and manipulating the period of the second eye, Page and Nalovic (1992) obtained a diversity of results, including synchronized and desynchronized eyes, associated to weak coupling and period differences.

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Background And Aims: Interest in repairing ruptured anterior cruciate ligaments (ACL) has resurged, with suture tape augmentation (internal brace, ACL-IB) emerging as a prominent technique. However, the efficacy of ACL-IB compared to ACL reconstruction (ACL-R) remains unclear. We conducted a meta-analysis to address this gap.

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A steadily increasing number of publications support the concept of physiological networks, and how cellular bioelectrical properties drive cell proliferation and cell synchronization. All cells, especially cancer cells, are known to possess characteristic electrical properties critical for physiological behavior, with major differences between normal and cancer cell counterparts. This opportunity can be explored as a novel treatment modality in Oncology.

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Electrolyte Effects on Electrochemical CO Reduction Reaction at Sn Metallic Electrode.

J Phys Chem C Nanomater Interfaces

December 2024

Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, Leiden 2300 RA, The Netherlands.

Understanding the electrolyte factors governing the electrochemical CO reduction reaction (CORR) is fundamental for selecting the optimized electrolyte conditions for practical applications. While noble metals are frequently studied, the electrolyte effects on the CORR on Sn catalysts are not well explored. Here, we studied the electrolyte effect on Sn metallic electrodes, investigating the impact of electrolyte concentration, cation identity, and anion properties, and how it shapes the CORR activity and selectivity.

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Worldwide, mortality was strongly affected by the COVID-19 pandemic, both directly through COVID-19 deaths and indirectly through changes in other causes of death. Here, we examine the impact of the pandemic on COVID-19 and non-COVID-19 mortality in 24 countries: Australia, Austria, Brazil, Bulgaria, Canada, Chile, Croatia, Czechia, Denmark, England and Wales, Hungary, Japan, Latvia, Lithuania, The Netherlands, Northern Ireland, Poland, Russia, Scotland, South Korea, Spain, Sweden, Switzerland, and the United States. Using demographic decomposition methods, we compare age- and cause-specific contributions to changes in female and male life expectancy at birth in 2019-2020, 2020-2021, and 2021-2022 with those before the COVID-19 pandemic (2015-2019).

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Physical activity guidelines targeting different populations with and without chronic diseases or disabilities are required to meet the diverse functional and physiological needs experienced by different subgroups of people to achieve optimal health benefits. As the importance of physical activity guidelines in promoting optimal health and well-being becomes increasingly recognised, there is a critical need for their systematic evaluation to ensure they remain effective, applicable and aligned with evolving health needs and scientific insights. This study aims to systematically review, critically evaluate, and compare global physical activity and sedentary behaviour guidelines on frequency, intensity, time, and type of exercise for adults, pregnant and postpartum women, and people living with chronic conditions and/or disabilities.

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Background: Secondary stroke prevention in patients with atrial fibrillation (AF) is one of the fastest growing areas in the field of cerebrovascular diseases. This Scientific statement from the World Stroke Organization Brain & Heart Task Force provides a critical analysis of the strength of current evidence this topic, highlights areas of current controversy, identifies knowledge gaps, and proposes priorities for future research.

Methods: We select topics with the highest clinical relevance and perform a systematic search to answer specific practical questions.

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Impact of cholesterol supplementation on Pantaneiro bovine semen cryopreservation: Insights into in vitro embryo production.

Theriogenology

December 2024

Universidade Federal de Mato Grosso (UFMT) campus Cuiabá, Avenida Fernando Corrêa da Costa, 2367, Boa Esperança, Cuiabá, 78060-900, Brazil; Programa de Pós-Graduação Stricto Sensu em Biociência Animal, Universidade de Cuiabá (UNIC), Avenida Manoel José de Arruda, 3100, Jardim Europa, Cuiabá, 78065-900, Brazil. Electronic address:

This study aimed to evaluate the impact of cholesterol supplementation at various concentrations in cryopreserved Pantaneiro bovine semen on in vitro embryo production (IVEP). Grade I and II cumulus-oocyte complexes (COCs) were collected from ovaries retrieved from a commercial slaughterhouse and matured in vitro for 24 h. The matured COCs were divided into four groups based on the concentration of cholesterol -loaded cyclodextrin (CLC) during semen cryopreservation from a Pantaneiro breed bull: Control (C) - 0 mg/mL CLC, T1 - 0.

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Gut colonization of semi-aquatic turtles inhabiting the Brazilian Amazon by international clones of CTX-M-8-producing Escherichia coli.

Vet Microbiol

December 2024

One Health Brazilian Resistance Project (OneBR), Brazil; Department of Microbiology, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil; Department of Clinical Analysis, School of Pharmacy, University of São Paulo, São Paulo, Brazil; Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil. Electronic address:

Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli poses a significant threat to public health due to its ability to confer resistance to broad-spectrum antimicrobials, especially third-generation cephalosporins. Herein, we report gut colonization by international clones of CTX-M-8-producing E. coli in scorpion mud turtles (Kinosternon scorpioides) from a captive breeding program in the Brazilian Amazon.

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Current status of toxicological research on stingless bees (Apidae, Meliponini): Important pollinators neglected by pesticides' regulations.

Sci Total Environ

December 2024

Sociedad Latinoamericana de Investigación en Abejas (SoLatInA), Montevideo, Uruguay; Laboratorio de Microbiología y Salud de las Abejas, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Avda. Italia 3318, Montevideo, Uruguay; Centro de Investigación en Ciencias Ambientales (CICA), Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Avda. Italia 3318, Montevideo, Uruguay. Electronic address:

Stingless bees (tribe Meliponini), comprising over 600 known species within the largest group of eusocial bees, play a critical role in ecosystem functioning through their pollination services. They contribute to the reproduction of numerous plant species, including many economically important crops such as cacao, coffee, and various fruits. Beyond their ecological significance, stingless bees hold cultural and economic importance for many native and rural communities, where they are managed for their honey, pollen, and propolis for nutritional and health purposes.

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