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120 resultados encontrados.

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Geometric Design-based Dimensional Synthesis of a Novel Metamorphic Multi-fingered Hand with Maximal Workspace
Artículo
Acceso abierto Artículo DOAJ
Wei An et al · KeAi Communications Co., Ltd · 2021 · ISSN 1000-9345
Abstract Current research on robotic dexterous hands mainly focuses on designing new finger and palm structures, as well as developing smarter control algorithms. Although the dimensional synthesis of dexterous hands wit...
LCC LCC:Ocean engineering; TENDOk1lY2hhbmljYWwgZW5naW5lZXJpbmcgYW5kIG1hY2hpbmVyeQ~~Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Green Synthesis of Silver Nanoparticles and the Study of Optical Properties
Tesis
Acceso abierto Tesis DOAJ
Ramakrishna Vasireddy et al · SAGE Publishing · 2012 · ISSN 1847-9804
The synthesis of silver nanoparticles of varying size has been achieved using different molar concentrations of NaOH while the effect of changing the temperature has been studied. AgNO3, gelatine, glucose and NaOH are us...
LCC LCC:Materials of engineering and construction. Mechanics of materials; TENDOlRlY2hub2xvZ3k~Idioma eng
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Open Access
Green Synthesis of Titanium Oxide Nanoparticles from Leaves Extract of Cassia Fistula and Evaluation of their Antimicrobial Activities
Artículo
Acceso abierto Artículo DOAJ
Anum Sadiq et al · Wright State University · 2024 · ISSN 2309-3854
The fields of biotechnology, pharmacy, agriculture, and health could all benefit greatly from advances in Nano science and nanotechnology. The synthesis, characterizations, and antibacterial qualities of titanium dioxide...
LCC TENDOkVudmlyb25tZW50YWwgc2NpZW5jZXM~; TENDOkVjb2xvZ3k~Idioma eng
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Open Access
Green synthesis of zinc oxide nanoparticles using two saffron flower extracts and their comparative photocatalytic efficiency in organic dye degradation
Artículo
Material complementario disponible Artículo DOAJ
Adil Hamid et al · SpringerOpen · 2026 · ISSN 3004-8958
Abstract Zinc oxide (ZnO) nanoparticles are widely explored for photocatalytic degradation of organic pollutants due to their high stability, low cost, and environmental compatibility. In this study, ZnO nanoparticles we...
LCC LCC:Materials of engineering and construction. Mechanics of materialsIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Illness experience and needs in children with inflammatory bowel disease: a systematic review and meta-synthesis of qualitative studies
Artículo
Acceso institucional disponible Artículo DOAJ
Shaohong Lin et al · BMC · 2026 · ISSN 1471-2431
Abstract Background As the global incidence of pediatric Inflammatory Bowel Disease (IBD) rises, so does the complexity of its psychosocial burden. While biomedical protocols for clinical management are robust, the subje...
LCC TENDOlBlZGlhdHJpY3M~Idioma eng
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Institucional
Joint synthesis of longitudinal MRI and enhanced prediction of neoadjuvant chemotherapy response in breast cancer: a multicohort study
Artículo
Acceso abierto Artículo DOAJ
Ming Fan et al · BMC · 2026 · ISSN 1471-2407
Abstract Neoadjuvant chemotherapy (NAC) induces critical morphological and vascular changes in breast cancer tumors, yet existing deep learning techniques in medical imaging tend to neglect these longitudinal changes thr...
LCC TENDOk5lb3BsYXNtcy4gVHVtb3JzLiBPbmNvbG9neS4gSW5jbHVkaW5nIGNhbmNlciBhbmQgY2FyY2lub2dlbnM~Idioma eng
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Open Access
Magnetite nanoparticles synthesized using grape fruit extract: synthesis, morphology, hyperthermia application and catalytic activity in hydrogen peroxide decomposition
Artículo
Acceso abierto Artículo DOAJ
Nazarii Danyliuk et al · Vasyl Stefanyk Carpathian National University · 2022 · ISSN 1729-4428
The paper presents a simple one-step "green" approach to the synthesis of magnetite nanoparticles. The magnetite nanoparticles were synthesized using fruit extract obtained from grape peels and grape pulp. The formation ...
LCC TENDOlBoeXNpY3M~Idioma eng
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Open Access
Micro-macro synthesis on the example of theories of social practices in sociology
Artículo
Acceso abierto Artículo DOAJ
Natalia Otreshko · Institute of Sociology of the NAS of Ukraine · 2025 · ISSN 1563-3713
This article explores the concepts of social practices through the perspectives of Pierre Bourdieu and Anthony Giddens, highlighting their contribution to micro-macro synthesis in contemporary sociology. Micro-macro synt...
LCC TENDOlNvY2lvbG9neSAoR2VuZXJhbCk~Idioma eng
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Open Access
Quinolone tolerance in Escherichia coli due to defects in the adenosine ribonucleotides de novo biosynthesis pathway
Artículo
Material complementario disponible Artículo DOAJ
Weiwei Zhu et al · Wiley · 2026 · ISSN 2770-100X
Abstract Central carbon metabolism is thought to link reactive oxygen species (ROS) with antibiotic‐mediated bacterial death. During enrichment screening of Escherichia coli with the first‐generation quinolone oxolin...
LCC TENDOk1pY3JvYmlvbG9neQ~~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
Rare earth based nanostructured materials: synthesis, functionalization, properties and bioimaging and biosensing applications
Artículo
Material complementario disponible Artículo DOAJ
Escudero Alberto et al · Wiley · 2017 · ISSN 2192-8614
Rare earth based nanostructures constitute a type of functional materials widely used and studied in the recent literature. The purpose of this review is to provide a general and comprehensive overview of the current sta...
LCC TENDOlBoeXNpY3M~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
Sustainable reuse of mineral waste: Synthesis and comprehensive characterization of hydroxyapatite (HAP)
Artículo
Acceso abierto Artículo DOAJ
Bader Bouzar et al · KeAi Communications Co., Ltd · 2026 · ISSN 2949-7361
The study explores an eco-efficient synthesis method for hydroxyapatite (HAP) from mineral residues rich in calcium carbonate (CaCO3) and monopotassium phosphate (KH2PO4). The process is based on a chemical reaction in a...
LCC TENDOkVudmlyb25tZW50YWwgZW5naW5lZXJpbmc~; TENDOkVudmlyb25tZW50YWwgc2NpZW5jZXM~Idioma eng
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Open Access
The improved synthesis of ROCKYPhos and its application for the asymmetric hydrogenation of dihydroisoquinoline derivatives
Artículo
Acceso abierto Artículo DOAJ
Vitalii A. Bilenko · National University of Pharmacy (Kharkiv) · 2026 · ISSN 2308-8303
An optimized approach to the multigram synthesis of [(1R,2R,3S)-(+)-1,2-dimethyl-2,3-bis(diphenylphosphinomethyl)cyclopentyl]methanol (ROCKYPhos, CatASium I®), a camphor-derived chiral diphosphine ligand, has been devel...
LCC TENDOkNoZW1pc3RyeQ~~Idioma eng
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Open Access
Effect of pH value and calcination temperature on synthesis and characteristics of Cu-Ni nano-alloys
Artículo
Acceso abierto Artículo CONICET Digital
Cangiano, Maria de Los Angeles et al · Elsevier Science · 2015 · ISSN 3664-3677
Cu-Ni nano-alloys were prepared using precursors synthesized by the citrate-gel method. The effects of initial solution pH value and calcination temperature on the composition, crystalline structure, purity, morphology, ...
Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Barriers to and facilitators of paediatric early hearing detection and intervention: protocol for a systematic review and meta-synthesis of qualitative evidence
Artículo
Acceso institucional disponible Artículo DOAJ
Mehrdad Amir-Behghadami et al · BMJ Publishing Group · 2026 · ISSN 2044-6055
Introduction Early hearing detection and intervention (EHDI) is a crucial public health initiative focused on the prompt identification and management of hearing impairments in children, significantly impacting their com...
LCC LCC:MedicineIdioma eng
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Institucional
Biological Differences between Hanwoo longissimus dorsi and semimembranosus Muscles in Collagen Synthesis of Fibroblasts
Artículo
Acceso abierto Artículo DOAJ
Sivakumar Allur Subramaniyan et al · Springer Nature · 2017 · ISSN 2636-0772
Abstract Variations in physical toughness between muscles and animals are a function of growth rate and extend of collagen type I and III. The current study was designed to investigate the ability of growth rate, collage...
LCC TENDOkZvb2QgcHJvY2Vzc2luZyBhbmQgbWFudWZhY3R1cmU~; LCC:Animal cultureIdioma eng
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Open Access
Catalytic enantioselective synthesis of azahelicenes via cascade Pictet-Spengler reaction and dehydrogenative aromatization
Artículo
Acceso abierto Artículo DOAJ
Tianren Qin et al · Nature Portfolio · 2026 · ISSN 2041-1723
Abstract The introduction of N-heteroaromatic rings like pyridine and pyrrole into the helicene scaffold can significantly impact the electronic properties, redox potentials and coordination abilities of helicenes, which...
LCC TENDOlNjaWVuY2U~Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Colloidal Cu2ZnSnS4-based and Ag-doped Nanocrystals: Synthesis and Raman Spectroscopy Study
Artículo
Acceso abierto Artículo DOAJ
V. Dzhagan et al · Vasyl Stefanyk Carpathian National University · 2021 · ISSN 1729-4428
Cu2ZnSnS4 (CZTS) is one of the promising materials for absorber layers of new-generation thin film solar cells. Various synthetic routes of materials preparation and structural characterization have been explored so far....
LCC TENDOlBoeXNpY3M~Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Effects of Antibiotics and Anti-Inflammatory Drugs on Enamel Development: A Systematic Review with Quantitative Synthesis
Artículo
Material complementario disponible Artículo DOAJ
Nadia Zamri et al · Elsevier · 2026 · ISSN 0020-6539
ABSTRACT: Objective: To investigate the effects of commonly prescribed antibiotics and nonsteroidal anti-inflammatory drugs (NSAIDs) during early life on enamel development through a systematic review with quantitative ...
LCC TENDOkRlbnRpc3RyeQ~~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
Embryonic zeolite-mediated suture synthesis of thin and scalable zeolite membranes for tailored gas separation
Artículo
Material complementario disponible Artículo DOAJ
Lekai You et al · Nature Portfolio · 2026 · ISSN 2041-1723
Abstract Zeolite membranes exhibit considerable potential for gas separation; however, two critical challenges (low permeation flux and scaling-up fabrication) continue to hinder their practical implementation. Here, we ...
LCC 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
Engineering more sustainable catalysts based in ecological and economic synthesis routes from renewable raw material: Novel mesoporous silicas for remediation technologies
Artículo
Acceso abierto Artículo CONICET Digital
Vaschetto, Eliana Gabriela et al · Elsevier Science · 2023 · ISSN 1387-1811
Iron modified mesoporous silica structures were achieved from biomass-derived renewable molding agents (glyceryl monostearate and glycerol) and can become potential substitutes for conventional mesoporous catalysts synth...
Idioma eng
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Open Access
Enterocytes rely on purine biosynthesis/salvage pathway to facilitate dietary fat absorption
Artículo
Acceso abierto Artículo DOAJ
Yu Wang et al · Nature Portfolio · 2026 · ISSN 2041-1723
Abstract Dietary fat absorption is among the most energy-demanding processes of nutrient uptake. Fatty acid activation, triglyceride synthesis, and the trafficking of chylomicrons through the secretory pathway - all requ...
LCC TENDOlNjaWVuY2U~Idioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Estimativa da produção microbiana em cabras lactantes alimentadas com diferentes teores de proteína na dieta Microbial protein synthesis in lactating goats fed diets with increasing levels of dietary protein
Artículo
Acceso abierto Artículo DOAJ
Carlos Elysio Moreira da Fonseca et al · Sociedade Brasileira de Zootecnia · 2006 · ISSN 1516-3598
Este trabalho foi conduzido com o objetivo de avaliar a produção microbiana em cabras alimentadas com diferentes teores de PB na dieta. Utilizaram-se 16 cabras lactantes distribuídas em quatro quadrados latinos 4 x 4,...
LCC LCC:Animal cultureIdioma eng
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Open Access
Facile synthesis of anatase-free hierarchical TS-1 zeolite containing highly active TiO6 species for alkene epoxidation and oxidative desulfurization
Artículo
Acceso abierto Artículo DOAJ
Zicong Wang et al · Elsevier · 2026 · ISSN 0378-3820
The fabrication of hierarchical zeolite structure and rational modulation of Ti active sites in TS-1 zeolite are both recognized as critical factors for improving catalytic performance in selective oxidation reactions. H...
LCC TENDOkZ1ZWw~; TENDOlJlbmV3YWJsZSBlbmVyZ3kgc291cmNlcw~~Idioma eng
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Open Access
Facile synthesis of cobalt ferrite nanotubes using bacterial nanocellulose as template
Artículo
Acceso abierto Artículo Repositorio UNSAM
Menchaca Nal, Sandra et al · Elsevier · 2016 · ISSN 0144-8617
A facile method for the preparation of cobalt ferrite nanotubes by use of bacterial cellulose nanoribbons as a template is described. The proposed method relays on a simple coprecipitation operation, which is a technique...
Idioma eng
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Open Access