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    Consistent patterns of common species across tropical tree communities

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    International audienceAbstract Trees structure the Earth‚Äôs most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10‚ÄČcm across 1,568 locations 1‚Äď6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth‚Äôs 800 billion tropical trees with trunk diameters of at least 10‚ÄČcm. Despite differing biogeographic, climatic and anthropogenic histories 7 , we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world‚Äôs most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees

    ABORDAGEM TERAP√äUTICA DE NEOPLASIAS GINECOL√ďGICAS POR MEIO DE UMA PERSPECTIVA MULTIDISCIPLINAR

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    This article addresses the growing concern about public health related to cancer in Brazil, with a focus on gynecological neoplasms in women. Cancer during pregnancy, although rare, is becoming more common, especially at advanced ages. Neoplasms such as breast and cervical cancer require complex treatments, including chemotherapy and surgery. The multifactorial nature of cancer, involving factors such as working conditions, genetic predisposition, and environmental influences, demands a comprehensive and multidisciplinary approach. Intervention in this context, considering body, mind, and spirit, becomes crucial in the care of oncology patients, requiring not only technical knowledge but also emotional preparation and a holistic view of the patient. The article focuses on the effectiveness of the multidisciplinary approach in the therapy of gynecological neoplasms, highlighting the importance of collaboration between different medical specialties. Using the PICo strategy, the methodology includes an integrative literature review in recognized databases such as LILACS, MEDLINE, and BDENF, identifying recent works published in the last 10 years. The results indicate improvements in the survival of patients undergoing multidisciplinary treatments, with studies suggesting a reduction in the risk of recurrence in cases of cervical and breast cancer. Furthermore, multidisciplinary involvement contributes to the qualification of healthcare professionals, promoting improvements in the prevention, diagnosis, and treatment of gynecological cancer. The article emphasizes the need for a comprehensive approach to the care of oncology patients, especially in gynecological neoplasms, highlighting the importance of collaboration between different disciplines. The conclusion emphasizes the vitality of the multidisciplinary approach as an effective strategy, appealing for its continuous implementation in the clinical setting. The harmonious integration of different treatment modalities and emotional support not only improves clinical outcomes but also positively impacts the quality of life of patients, reinforcing the importance of interdisciplinary collaboration for a more effective and patient-centered future.Este art√≠culo aborda la creciente preocupaci√≥n sobre la salud p√ļblica relacionada con el c√°ncer en Brasil, con un enfoque en las neoplasias ginecol√≥gicas en mujeres. El c√°ncer durante el embarazo, aunque raro, se est√° volviendo m√°s com√ļn, especialmente en edades avanzadas. Neoplasias como el c√°ncer de mama y de cuello uterino requieren tratamientos complejos, que incluyen quimioterapia y cirug√≠a. La naturaleza multifactorial del c√°ncer, que involucra factores como las condiciones laborales, la predisposici√≥n gen√©tica y las influencias ambientales, exige un enfoque integral y multidisciplinario. La intervenci√≥n en este contexto, considerando el cuerpo, la mente y el esp√≠ritu, se vuelve crucial en el cuidado de pacientes oncol√≥gicos, requiriendo no solo conocimientos t√©cnicos, sino tambi√©n preparaci√≥n emocional y una visi√≥n hol√≠stica del paciente. El art√≠culo se centra en la eficacia del enfoque multidisciplinario en la terapia de neoplasias ginecol√≥gicas, resaltando la importancia de la colaboraci√≥n entre diferentes especialidades m√©dicas. Utilizando la estrategia PICo, la metodolog√≠a incluye una revisi√≥n integradora de la literatura en bases de datos reconocidas como LILACS, MEDLINE y BDENF, identificando trabajos recientes publicados en los √ļltimos 10 a√Īos. Los resultados se√Īalan mejoras en la supervivencia de pacientes sometidos a tratamientos multidisciplinarios, con estudios que sugieren una reducci√≥n en el riesgo de recurrencia en casos de c√°ncer de cuello uterino y mama. Adem√°s, la participaci√≥n multidisciplinaria contribuye a la calificaci√≥n de los profesionales de la salud, promoviendo mejoras en la prevenci√≥n, diagn√≥stico y tratamiento del c√°ncer ginecol√≥gico. El art√≠culo enfatiza la necesidad de un enfoque integral en el cuidado de pacientes oncol√≥gicos, especialmente en neoplasias ginecol√≥gicas, destacando la importancia de la colaboraci√≥n entre diferentes disciplinas. La conclusi√≥n destaca la vitalidad del enfoque multidisciplinario como estrategia efectiva, haciendo un llamado a su implementaci√≥n continua en el entorno cl√≠nico. La integraci√≥n armoniosa de diferentes modalidades de tratamiento y apoyo emocional no solo mejora los resultados cl√≠nicos, sino que tambi√©n impacta positivamente en la calidad de vida de las pacientes, reforzando la importancia de la colaboraci√≥n interdisciplinaria para un futuro m√°s eficaz y centrado en la paciente.  Este artigo aborda a crescente preocupa√ß√£o com a sa√ļde p√ļblica relacionada ao c√Ęncer no Brasil, com enfoque nas neoplasias ginecol√≥gicas em mulheres. O c√Ęncer durante a gravidez, embora raro, est√° se tornando mais comum, especialmente em idades avan√ßadas. Neoplasias como c√Ęncer de mama e colo do √ļtero exigem tratamentos complexos, incluindo quimioterapia e cirurgia. A natureza multifatorial do c√Ęncer, envolvendo fatores como condi√ß√Ķes de trabalho, predisposi√ß√£o gen√©tica e influ√™ncias ambientais, demanda uma abordagem abrangente e multidisciplinar. A interven√ß√£o nesse contexto, considerando corpo, mente e esp√≠rito, torna-se crucial no cuidado a pacientes oncol√≥gicos, exigindo n√£o apenas conhecimento t√©cnico, mas tamb√©m prepara√ß√£o emocional e uma vis√£o hol√≠stica do paciente. O artigo se concentra na efic√°cia da abordagem multidisciplinar na terapia de neoplasias ginecol√≥gicas, destacando a import√Ęncia da colabora√ß√£o entre diferentes especialidades m√©dicas. Utilizando a estrat√©gia PICo, a metodologia inclui uma revis√£o integrativa da literatura em bases de dados reconhecidas, como LILACS, MEDLINE e BDENF, identificando trabalhos recentes publicados nos √ļltimos 10 anos. Os resultados apontam melhorias na sobrevida de pacientes submetidos a tratamentos multidisciplinares, com estudos indicando redu√ß√£o no risco de recidiva em casos de c√Ęncer de colo do √ļtero e mama. Al√©m disso, a atua√ß√£o multidisciplinar contribui para a qualifica√ß√£o dos profissionais de sa√ļde, promovendo melhorias na preven√ß√£o, diagn√≥stico e tratamento do c√Ęncer ginecol√≥gico. O artigo enfatiza a necessidade de uma vis√£o abrangente no cuidado a pacientes oncol√≥gicos, especialmente em neoplasias ginecol√≥gicas, destacando a import√Ęncia da colabora√ß√£o entre diferentes disciplinas. A conclus√£o ressalta a vitalidade da abordagem multidisciplinar como estrat√©gia eficaz, apelando para sua implementa√ß√£o cont√≠nua no cen√°rio cl√≠nico. A integra√ß√£o harmoniosa de diferentes modalidades de tratamento e suporte emocional n√£o apenas melhora os resultados cl√≠nicos, mas tamb√©m impacta positivamente na qualidade de vida das pacientes, refor√ßando a import√Ęncia da colabora√ß√£o interdisciplinar para um futuro mais eficaz e centrado na paciente

    Consistent patterns of common species across tropical tree communities

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    Trees structure the Earth‚Äôs most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10‚ÄČcm across 1,568 locations1,2,3,4,5,6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth‚Äôs 800 billion tropical trees with trunk diameters of at least 10‚ÄČcm. Despite differing biogeographic, climatic and anthropogenic histories7, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world‚Äôs most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees.Publisher PDFPeer reviewe

    Instrumentos para avalia√ß√£o da Aten√ß√£o Prim√°ria √† Sa√ļde: revis√£o integrativa

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    A avalia√ß√£o da Aten√ß√£o Prim√°ria √† Sa√ļde (APS) busca evid√™ncias cient√≠ficas sobre sua real efetividade. Traz consequ√™ncias importantes, como a defini√ß√£o de pol√≠ticas p√ļblicas. O objetivo foi analisar a produ√ß√£o cient√≠fica resultante da aplica√ß√£o de instrumentos de avalia√ß√£o √† √°rea da Aten√ß√£o Prim√°ria √† Sa√ļde. Esta revis√£o integrativa utiliza o protocolo PRISMA nas bases de dados LILACS, Scopus, PubMed, BIREME e Scielo. Um total de 2.785 manuscritos foram identificados, crit√©rios de elegibilidade selecionados 46 e, no final, inclu√≠dos 20 manuscritos na revis√£o. O PCATool-Brasil foi o instrumento mais utilizado, seguido pelo Sistema de Monitoramento e Avalia√ß√£o da Aten√ß√£o B√°sica ‚Äď QualiAB, entrevistas n√£o diretivas, coleta e an√°lise de dados secund√°rios. Dada a complexidade da APS, recomenda-se que seus processos de avalia√ß√£o considerem o contexto de participa√ß√£o de institui√ß√Ķes de ensino, pesquisa, profissionais, gestores e usu√°rios

    A utilização do banco de perfis genéticos como ferramenta na identificação de pessoas desaparecidas

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    O trabalho apresentado traz uma revis√£o do uso dos Bancos de Perfis Gen√©ticos como ferramenta na identifica√ß√£o de pessoas desaparecidas no Brasil e em outros pa√≠ses. O tema do desaparecimento √© um problema que est√° presente em v√°rios pa√≠ses e envolve quest√Ķes sociais, pol√≠ticas e de viol√™ncia. O objetivo deste trabalho √© demonstrar a utiliza√ß√£o dos Bancos de Perfis Gen√©ticos no Brasil e em outros pa√≠ses, abordando as legisla√ß√Ķes brasileiras a respeito dos temas desaparecimento e Bancos de Perfis Gen√©ticos. No Brasil destaca-se o Decreto n¬ļ 7.950/2013 que instituiu o Banco Nacional de Perfis Gen√©ticos e autorizou o uso deste para a identifica√ß√£o de pessoas desaparecidas. Ao longo destes 8 anos √© n√≠tido o crescimento n√ļmero de perfis armazenados e alguns casos auxiliados pelo banco. O uso do Banco de Perfis Gen√©ticos como ferramenta na busca de pessoas desaparecidas traz esperan√ßa, mesmo que a resolu√ß√£o deste problema n√£o seja na maioria dos casos a esperada, que √© a constata√ß√£o da morte do ente querido, mas finaliza o processo de ang√ļstia e luto de quem vive a espera de seu retorno

    Integration of Corn and Cane for Ethanol Production: Effects of Lactobacilli Contamination on Fermentative Parameters and Use of Ionizing Radiation Treatment for Disinfection

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    Recently, in Brazil, corn ethanol industries are being installed and the integration with sugar/energy-cane has been proposed, using bagasse for cogeneration and the juice to dilute the corn. However, this integration may have some limitations, such as the quality of the cane juice and potential contamination by microorganisms brought with the cane from the field. In this article, we first tested the effects of mixing energy cane juice with corn on fermentative parameters. We also assessed the effects of Lactobacilli. contamination on organic acids produced during the fermentation and fermentation parameters and proposed the use of ionizing radiation to replace antibiotics as a disinfection control method. Our results showed that mixing energy cane juice with corn does not have any negative effect on fermentation parameters, including ethanol production. The contamination with Lactobacilli. considerably increased the production of acetic, lactic, and succinic acid, reducing the pH and ethanol content from 89.2 g L‚ąí1 in the sterilized treatment to 72.9 g L‚ąí1 in the contaminated treatment. Therefore, for the integration between corn and cane to be applied on an industrial scale, it is essential to have effective disinfection before fermentation. Ionizing radiation (20 kGy) virtually disinfected the wort, showing itself to be a promising technology; however, an economic viability study for adopting it in the industry should be carried out

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

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    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

    Classification of the pre-exam anxiety levels in physically inactive students from 48 countries: application of the K-means clustering machine learning algorithm.

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    Physical inactivity is a behavioral factor that is strongly associated with anxiety symptoms in children and adolescents. Anxiety is a disabling condition that reduces academic performance (Kandola et al., 2020).info:eu-repo/semantics/publishedVersio
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