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60 resultados encontrados.

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Chemical exposure and risk in river basins: Bayesian integration of environmental model simulations and monitoring data
Artículo
Acceso abierto Artículo DOAJ
Sophie Mentzel et al · Frontiers Media S.A · 2026 · ISSN 2813-7124
The EU's Chemicals Strategy for Sustainability aims to incorporate environmental risk of combined exposure, stemming from unintentional chemical mixtures in the environment, into regulatory risk assessments. Within the E...
LCC TENDOlJpdmVyLCBsYWtlLCBhbmQgd2F0ZXItc3VwcGx5IGVuZ2luZWVyaW5nIChHZW5lcmFsKQ~~Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
CHEMICAL PROFILE OF PEEL, PULP AND SEED OF Eugenia dysenterica USING PAPER SPRAY MASS SPECTROMETRY
Artículo
Acceso abierto Artículo DOAJ
Yuri G. Figueiredo et al · Sociedade Brasileira de Química · 2026 · ISSN 1678-7064
“Cagaita” is the fruit of the “cagaiteira” (Eugenia dysenterica), a native fruit tree of the Myrtaceae family, found in the Brazilian “Cerrado”. This fruit is a rich source in nutrients and bioactive compound...
LCC TENDOkNoZW1pc3RyeQ~~Idioma eng
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Open Access
Chemical Composition of Active Compounds in Standardized Cinnamon Simplicia (Cinnamomum verum)
Artículo
Acceso abierto Artículo DOAJ
Sentot Joko Raharjo et al · Universitas Gadjah Mada · 2025 · ISSN 1410-5918
Cinnamon (Cinnamomum verum) is widely recognized as a spice with a distinctive aroma that has a variety of applications in the culinary and health industries, due to its diverse active compounds. Standardization is essen...
LCC LCC:MedicineIdioma eng
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Open Access
Chemical characterization and gut microbial response unveil modification of polystyrene polymer in the lesser mealworm
Artículo
Material complementario disponible Artículo DOAJ
Felice Zarra et al · Nature Portfolio · 2026 · ISSN 2045-2322
Abstract The massive production of plastics, together with inadequate waste management, has intensified the problem of plastic pollution. Recently, the scientific community has increasingly investigated the interactions ...
LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Artificial intelligence for small-molecule chemical probe design: why drug-centric models may not transfer cleanly
Artículo
Acceso abierto Artículo DOAJ
Renzo Carlucci et al · Frontiers Media S.A · 2026 · ISSN 2674-0338
Artificial intelligence (AI) is increasingly used to design and optimize small molecules. However, most current workflows remain centered on drug-candidate objectives, such as potency, ADMET, and drug-likeness, rather th...
LCC LCC:Therapeutics. PharmacologyIdioma eng
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Open Access
Characterization of sildenafil citrate tablets of different sources by near infrared chemical imaging and chemometric tools
Artículo
Material complementario disponible Artículo CONICET Digital
Sabin, Guilherme P. et al · Elsevier · 2013 · ISSN 0731-7085
The chemical imaging technique by near infrared spectroscopy was applied for characterization of formulations in tablets of sildenafil citrate of six different sources. Five formulations were provided by Brazilian Federa...
Idioma eng
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Material complementario
Comparative performance of Ca2Fe2O5 and Fe2O3 oxygen carriers in lignin-based chemical looping fuel cells
Artículo
Acceso abierto Artículo DOAJ
Atsuhiro Sumiya et al · Elsevier · 2026 · ISSN 1452-3981
Recent research has developed systems for the chemical looping (CL) gasification of biomass using iron (Fe)-based metal oxides as oxygen carriers (OCs). The present study constructed a CL fuel cell utilizing lignosulfona...
LCC TENDOkluZHVzdHJpYWwgZWxlY3Ryb2NoZW1pc3RyeQ~~; TENDOlBoeXNpY2FsIGFuZCB0aGVvcmV0aWNhbCBjaGVtaXN0cnk~Idioma eng
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Open Access
Dynamic mechanical properties and fractal characteristics of layered sandstone under chemical corrosion
Artículo
Acceso abierto Artículo DOAJ
Zhai Maolin et al · De Gruyter · 2026 · ISSN 2191-0359
To investigate the dynamic mechanical behavior and fragmentation characteristics of layered rock under the combined effects of chemical corrosion and impact loading, split Hopkinson pressure bar (SHPB) tests were perform...
LCC LCC:Materials of engineering and construction. Mechanics of materialsIdioma eng
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Open Access
Efeito de condicionadores químicos sobre a qualidade da cama de frango Effect of chemical conditioners on poultry litter quality
Artículo
Acceso abierto Artículo DOAJ
M.C. Oliveira et al · Universidade Federal de Minas Gerais, Escola de Veterinária · 2004 · ISSN 0102-0935
Avaliou-se a qualidade química da cama de frango submetida, por três lotes consecutivos de criação, a diferentes condicionadores químicos. Foram utilizadas 1320 aves, 440 por lote, em delineamento experimental em bl...
LCC LCC:Animal cultureIdioma eng
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Open Access
Effect of Metalwire Materials on the Energy Deposition in Electro-Chemical Coupling Explosions
Artículo
Acceso abierto Artículo DOAJ
Cheng WANG et al · Editorial Office of Chinese Journal of High Pressure Physics · 2026 · ISSN 1000-5773
To enhance the total output energy and power of energetic materials, plasma that generated by electrically exploded metal wires was employed to initiate the detonation of energetic materials, thereby achieving the couple...
LCC TENDOlBoeXNpY3M~Idioma eng
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Open Access
Experimental study on electro-osmosis chemical grouting reinforcement of marine soft clay using tubular EKG
Artículo
Acceso abierto Artículo DOAJ
SHEN Yang 1, 2, QIU Chen-chen 1, 2, SONG Shun-xiang 1, RUI Xiao-xi 1, SHI Wen 1 · Editorial Office of Chinese Journal of Geotechnical Engineering · 2017 · ISSN 1000-4548
In order to improve the problems of the electro-osmosis chemical grouting method, the tests need to be carried out for proper grouting concentration and methods. The electro-osmosis chemical grouting with different grout...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground constructionIdioma eng
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Open Access
Fabrication of highly homogeneous and controllable nanogratings on silicon via chemical etching-assisted femtosecond laser modification
Artículo
Acceso abierto Artículo DOAJ
Huang Ji et al · Wiley · 2019 · ISSN 2192-8606
Femtosecond laser direct writing is widely exploited in surface periodic structures processing. However, this technique still faces challenges in obtaining high surface homogeneity and flexible morphology controllability...
LCC TENDOlBoeXNpY3M~Idioma eng
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Open Access
Geographical variation of chemical signals and odor discrimination in the great Himalayan leaf-nosed bat (Hipposideros armiger)
Artículo
Material complementario disponible Artículo DOAJ
Congnan Sun et al · BMC · 2026 · ISSN 1741-7007
Abstract Background Signal divergence and sensory preferences may cause reproductive isolation and eventually speciation between animal populations. These patterns are particularly well known in systems with acoustic or ...
LCC LCC:Biology (General)Idioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Heat and mass transfer analysis of chemically reacted Cu/Al2O3 Casson hybrid nanofluid flow via porous medium under MHD and slip conditions
Artículo
Acceso abierto Artículo DOAJ
Al-Atawi Nawal Odah · De Gruyter · 2026 · ISSN 2191-9097
Significant research interest in hybrid nanofluids stems from their extensive applications in areas like industrial cooling and biomedical engineering. The present investigation focuses on a hybrid Casson nanofluid, a no...
LCC TENDOlRlY2hub2xvZ3k~; TENDOkNoZW1pY2FsIHRlY2hub2xvZ3k~; TENDOlBoeXNpY2FsIGFuZCB0aGVvcmV0aWNhbCBjaGVtaXN0cnk~Idioma eng
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Open Access
Identifying geochemical processes using End Member Mixing Analysis to decouple chemical components for mixing ratio calculations
Artículo
Acceso abierto Artículo CONICET Digital
Pelizardi, Flavia Paola et al · Elsevier Science · 2017 · ISSN 0022-1694
Mixing calculations (i.e., the calculation of the proportions in which end-members are mixed in a sample) are essential for hydrological research and water management. However, they typically require the use of conservat...
Idioma eng
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Open Access
Implementation of socio-scientific issue learning to promote chemical literacy as a strategy to achieve chemistry competency
Artículo
Acceso abierto Artículo DOAJ
Sutiani Ani et al · De Gruyter · 2025 · ISSN 2569-3263
Chemical literacy as a scientist’s life skill needs to be promoted through teaching and learning activities. This study aims to implement socio-scientific issue (SSI)-based learning to improve chemical literacy skills ...
LCC TENDOkNoZW1pc3RyeQ~~Idioma eng
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Open Access
Multiscale mechanisms of reactive oxygen species-induced oxidation of SBS-modified asphalt: From physical oxidation diffusion to chemical oxidation reaction
Artículo
Acceso abierto Artículo DOAJ
Mingjun Hu et al · Elsevier · 2026 · ISSN 2214-5095
Reactive oxygen species (ROS, ·OH, ·OOH, and O₂) are ubiquitous in urban environments and may significantly accelerate asphalt pavement aging, yet their interactions with asphalt components remain poorly understood. ...
LCC LCC:Materials of engineering and construction. Mechanics of materialsIdioma eng
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Open Access
Smartphone-assisted colorimetric determination of chemical equilibrium constant (Kc) as an alternative method in high school chemistry
Artículo
Acceso abierto Artículo DOAJ
Nugultham Kulthida et al · De Gruyter · 2025 · ISSN 2569-3263
This study aims to develop an alternative method for the determination of the chemical equilibrium constant (Kc) of thiocyanatoiron(III) complex ion, based on colorimetric analysis of smartphone-captured images. The vari...
LCC TENDOkNoZW1pc3RyeQ~~Idioma eng
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Open Access
Stimulated Raman scattering microscopy: fundamentals, instrumentation, and chemical imaging applications
Artículo
Acceso abierto Artículo DOAJ
Fake Lu · Frontiers Media S.A · 2026 · ISSN 2813-530X
Stimulated Raman scattering (SRS) microscopy is a fast Raman imaging technique that combines the molecular specificity of vibrational spectroscopy with the high spatial resolution and speed of laser-scanning microscopy. ...
LCC LCC:Biology (General); TENDOkNoZW1pc3RyeQ~~Idioma eng
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Open Access
The effect of clustering of Si nanowires produced by the metal-assisted chemical etching method on their anti-reflecting properties
Artículo
Acceso abierto Artículo DOAJ
I.I. Skrypnyk et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 1729-4428
Silicon nanowires are valuable for their compatibility with silicon technology and unique properties. Using metal-assisted chemical etching, we produced silicon nanowires and studied the effects of clustering, roughness,...
LCC TENDOlBoeXNpY3M~Idioma eng
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Open Access
Transplanted rice response to non-chemical weed management in a degraded wetland ecosystem
Artículo
Acceso abierto Artículo DOAJ
Lizabeni M. Kithan et al · Frontiers Media S.A · 2026 · ISSN 2571-581X
Rice (Oryza sativa L.) is a staple crop feeding over half of the global population, especially in Asia where it contributes 90% of global production. Weed infestation remains a critical constraint in rice ecosystems, sig...
LCC LCC:Nutrition. Foods and food supply; TENDOkZvb2QgcHJvY2Vzc2luZyBhbmQgbWFudWZhY3R1cmU~Idioma eng
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Open Access
Use cases from the German NTSPortal on the systematic use of high-resolution mass spectrometry non-target screening data in environmental monitoring and chemicals management
Artículo
Material complementario disponible Artículo DOAJ
Anna Lena Kronsbein et al · SpringerOpen · 2026 · ISSN 2190-4715
Abstract Background Society aims for a pollutant-free environment, reflected in initiatives under the European Green Deal, which seek to reduce hazardous substances and promote safe, sustainable chemical use. Comprehensi...
LCC TENDOkVudmlyb25tZW50YWwgc2NpZW5jZXM~; LCC:Environmental lawIdioma eng
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Uses of Chemical Technologies for Meat Decontamination
Artículo
Acceso abierto Artículo DOAJ
Donggyun Yim · Springer Nature · 2025 · ISSN 2636-0772
Abstract Traditional meat preservation techniques such as smoking, drying, and salting have various shortcomings and limitations in effectively reducing microbial loads and maintaining meat quality. Consequently, chemica...
LCC TENDOkZvb2QgcHJvY2Vzc2luZyBhbmQgbWFudWZhY3R1cmU~; LCC:Animal cultureIdioma eng
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Open Access
Aditivos químicos e biológicos na ensilagem de cana-de-açúcar: 1. composição química das silagens, ingestão, digestibilidade e comportamento ingestivo Chemical and biological additives in the ensiling of sugar cane: 1. chemical composition, dry matter intake, digestibility and ingestive behavior
Artículo
Acceso abierto Artículo DOAJ
Patrick Schmidt et al · Sociedade Brasileira de Zootecnia · 2007 · ISSN 1516-3598
Avaliou-se o efeito da inclusão de aditivos na ensilagem de cana-de-açúcar (Saccharum officinarum L.) sobre a composição químico-bromatológica das silagens, o comportamento ingestivo, o consumo voluntário e a dig...
LCC LCC:Animal cultureIdioma eng
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Open Access