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Open research questions in Environmental and biological studies

66 gap statements mined from Environmental and biological studies papers in our 4.5M-paper local library, which holds 406 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • The complexity of temporomandibular dysfunction and bruxism requires a multidisciplinary approach. The choice of occlusal splint is crucial for the success of the treatment. The lack of comprehensive reviews on occlusal splints makes it difficult to inform clinical practice.

    PLACAS OCLUSAIS: PRINCIPAIS TIPOS E SUAS INDICAÇÕES: UMA REVISÃO INTEGRATIVA DA LITERATURA · 2026 · DOI

  • The study is limited to publications in Portuguese and English. The search was restricted to the period between 2015 and 2025.

    PLACAS OCLUSAIS: PRINCIPAIS TIPOS E SUAS INDICAÇÕES: UMA REVISÃO INTEGRATIVA DA LITERATURA · 2026 · DOI

  • The study is limited to the state of Bahia. The study relies on reanalysis data, which may have limitations. The study does not account for other factors that may influence reference evapotranspiration.

    SAZONALIDADE DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA NA BAHIA E ANÁLISE DA PROJEÇÃO FUTURA · 2026 · DOI

  • Future research should focus on improving the accuracy of reference evapotranspiration estimates. Future research should explore the application of the Penman Monteith-FAO method to other regions. Future research should investigate the impact of climate change on reference evapotranspiration trends.

    SAZONALIDADE DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA NA BAHIA E ANÁLISE DA PROJEÇÃO FUTURA · 2026 · DOI

  • The public health system in the Sonora River region has not been evaluated since the 2014 mining spill. There is a lack of information about the infrastructure, personnel, and resources of the health units in the region.

    Evaluación preliminar del sistema de salud pública de la región del río Sonora · 2026 · DOI

  • The paper highlights the need for further research on the application of quantum machine learning models in hydrology.

    AVALIAÇÃO COMPARATIVA DE MODELOS CLÁSSICOS E QUÂNTICOS HÍBRIDOS PARA PREVISÃO MULTIHORIZONTE DO NÍVEL DO RIO EM ÓBIDOS · 2026 · DOI

  • The research highlights the lack of standardization in keywords in paleontology education research.

    Pesquisas sobre ensino de paleontologia: uma análise cientométrica das teses e dissertações brasileiras · 2026 · DOI

  • The study highlights the need for improved adhesive systems that can provide effective bonding between resin and dentin. The study identifies the potential for microinfiltration as a challenge in the use of self-etching adhesive systems.

    AVALIAÇÃO DA ADESÃO MARGINAL EM DENTINA POR MEIO DE TOMOGRAFIA DE COERÊNCIA ÓPTICA (OCT) UTILIZANDO DIFERENTES SISTEMAS ADESIVOS · 2026 · DOI

  • The study used bovine incisors, which may not be representative of human teeth. The study had a limited sample size, with only 30 samples in total. The study only evaluated the marginal adaptation and microinfiltration, and did not assess other properties of the adhesive systems.

    AVALIAÇÃO DA ADESÃO MARGINAL EM DENTINA POR MEIO DE TOMOGRAFIA DE COERÊNCIA ÓPTICA (OCT) UTILIZANDO DIFERENTES SISTEMAS ADESIVOS · 2026 · DOI

  • The study addresses the challenge of professional integration in the Democratic Republic of Congo. The country faces a lack of formal job creation despite demographic growth and an increase in higher education graduates.

    Système intelligent explicable pour l’analyse des déterminants de l’insertion pro fessionnelle et la détection des facteurs discriminants en République démocratique du Congo · 2026 · DOI

  • The study identifies a lack of explainable intelligent systems to analyze the determinants of professional integration. The study highlights the need to detect discriminatory factors associated with disparities in access to employment.

    Système intelligent explicable pour l’analyse des déterminants de l’insertion pro fessionnelle et la détection des facteurs discriminants en République démocratique du Congo · 2026 · DOI

  • The need for comprehensive strategies to address the health impacts of climate change. The lack of effective health promotion strategies for vulnerable populations.

    DOS IMPACTOS AMBIENTAIS AS AÇÕES DE PROMOÇÃO DA SAÚDE: UMA REVISÃO SOBRE MUDANÇAS CLIMÁTICAS E SAÚDE AMBIENTAL · 2026 · DOI

  • The lack of a comprehensive approach to predicting landslides is a challenge. The need for further validation of extreme events and class balance is a challenge.

    DESLIZAMIENTO DE TIERRA, CAMBIO CLIMÁTICO E INTELIGENCIA ARTIFICIAL EXPLICABLE EN ZONAS ANDINO-AMAZÓNICAS VULNERABLES, MEDIANTE MODELADO ESPACIO-TEMPORAL · 2026 · DOI

  • Further validation of extreme events and class balance is needed. Additional optimization of the model's performance is required. The study's findings can be used as a basis for further research on landslides and climate change.

    DESLIZAMIENTO DE TIERRA, CAMBIO CLIMÁTICO E INTELIGENCIA ARTIFICIAL EXPLICABLE EN ZONAS ANDINO-AMAZÓNICAS VULNERABLES, MEDIANTE MODELADO ESPACIO-TEMPORAL · 2026 · DOI

  • There is a need to study climate change effects at the local level. The research gap is in understanding the relationship between climate variables and water yield.

    Efecto del Cambio Climático Histórico en el Rendimiento Hídrico de la Cuenca del Rio Tumilaca en Perú · 2026 · DOI

  • Future research should focus on implementing conservation measures for the Buraco da Onça area. Further studies should investigate the area's biodiversity and ecosystem. The paper suggests that future research should prioritize the protection of the area's natural resources.

    ESTUDO DA VIABILIDADE AMBIENTAL PARA CRIAÇÃO DE UNIDADE DE CONSERVAÇÃO NO BURACO DA ONÇA, SALOÁ/PARANATAMA–PE · 2026 · DOI

  • The paper highlights the need for further research on the area's environmental importance.

    ESTUDO DA VIABILIDADE AMBIENTAL PARA CRIAÇÃO DE UNIDADE DE CONSERVAÇÃO NO BURACO DA ONÇA, SALOÁ/PARANATAMA–PE · 2026 · DOI

  • The existing indices for evaluating disaster risk do not consider the institutional capacity of municipalities. There is a need for a standardized and comparable measurement of municipal capacity for risk management.

    Índice multicritério para avaliação da capacidade municipal de gestão do risco de desastres no estado do Rio de Janeiro · 2026 · DOI

  • The study is limited to a literature review, and does not include original data or experiments. The paper does not provide a comprehensive review of all existing research on thermal stress in cattle. The study is focused on the impacts of thermal stress on cattle welfare and performance, and does not consider other factors that may affect cattle farming.

    Impactos do estresse térmico no bem-estar e desempenho de bovinos · 2026 · DOI

  • The paper highlights the need for further research on the impacts of thermal stress on cattle reproduction and milk production. The study suggests that there is a need for practical and sustainable solutions to mitigate the effects of thermal stress.

    Impactos do estresse térmico no bem-estar e desempenho de bovinos · 2026 · DOI

  • The study suggests the need for further research on the effects of climate change on agricultural productivity. The study highlights the importance of considering other factors that may affect the vegetation, such as soil management practices.

    Teledetección aplicada a los Umbrales de Vulnerabilidad Agrícola en el Chocó Andino: El caso de San Miguel de los Bancos-Ecuador 2014–2024 · 2026 · DOI

  • The study highlights the need for more research on the relationship between vegetation and climate variables.

    Teledetección aplicada a los Umbrales de Vulnerabilidad Agrícola en el Chocó Andino: El caso de San Miguel de los Bancos-Ecuador 2014–2024 · 2026 · DOI

  • Ausência de padronização dos protocolos de preparo e aplicação do PRP. Escassez de estudos sobre efeitos em longo prazo.

    USO DO PLASMA RICO EM PLAQUETAS NA ENFERMAGEM ESTÉTICA: REVISÃO INTEGRATIVA DA EVIDÊNCIA CIENTÍFICA · 2026 · DOI

  • The study had limited access to official information about other functions of the public health system. The evaluation was limited to the infrastructure, equipment, and services of the health units.

    Evaluación preliminar del sistema de salud pública de la región del río Sonora · 2026 · DOI

  • The study identifies a gap in the implementation of the program - The research finds that the program lacks sufficient public evidence of administrative and socio-environmental…

    PAGAMENTO POR SERVIÇOS AMBIENTAIS EM TALISMÃ, TOCANTINS: EFETIVIDADE NORMATIVA E DESAFIOS DE GOVERNANÇA NA BACIA DOS RIOS SANTO ANTÔNIO E SANTA TEREZA · 2026 · DOI

Most-cited papers in Environmental and biological studies

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This page shows what the Environmental and biological studies literature already flags as unresolved. To narrow it to your specific question, search the Research Gap Finder: the search is free with a free account and lists the papers closest to your topic first. Unlocking that topic (50 credits, charged once) fills the comparison table from our 4.5M-paper local library and writes the gaps from its rows.

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Open questions raised by papers listed on this page include: (1) The lack of comprehensive reviews on occlusal splints makes it difficult to inform clinical practice (“PLACAS OCLUSAIS: PRINCIPAIS TIPOS E SUAS INDICAÇÕES: UMA REVISÃO INTEGRATIVA DA…”, 2026); (2) Future research should focus on improving the accuracy of reference evapotranspiration estimates (“SAZONALIDADE DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA NA BAHIA E ANÁLISE DA PROJEÇÃO…”, 2026); (3) The public health system in the Sonora River region has not been evaluated since the 2014 mining spill (“Evaluación preliminar del sistema de salud pública de la región del río Sonora”, 2026); (4) The research highlights the lack of standardization in keywords in paleontology education research (“Pesquisas sobre ensino de paleontologia: uma análise cientométrica das teses e…”, 2026); (5) The country faces a lack of formal job creation despite demographic growth and an increase in higher education graduates (“Système intelligent explicable pour l’analyse des déterminants de l’insertion…”, 2026). 66 gap statements have been mined from Environmental and biological studies papers in our 4.5M-paper local library, which holds 406 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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