Artículos científicos: Envíos recientes
Mostrando ítems 201-220 de 5693
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Geometry optimization and UV/Vis spectra of organometallic chalcones functionalized with a benzo‐15‐crown‐5 fragment: A DFT/TD-DFT investigation (2024)
(Elsevier B.V., 2024)In this paper, we studied the structural and UV–visible absorption spectrum of the organometallic chalcones from ferrocene and cyrhetrene functionalized with a benzo‐15‐crown‐5 fragment. The influence of different alkali ... -
Article
The role of physical exercise on the brain and cognitive functions of patients in recovery from substance use disorder: A narrative review and recommendations for researchers and practitioners (2024)
(Elsevier Ltd, 2024)Background and aims: Physical exercise (PE) has been suggested as a potential complementary tool for substance use disorder (SUD) recovery. However, its potential benefits for the brain and cognitive functions are relatively ... -
Article
Comparing the Performance of the Use of Recycled Vegetable Oil and Biosolids as Collectors of Copper Sulfide Flotation and Their Effect on the Foam Stability (2024)
(Springer Science and Business Media Deutschland GmbH, 2024)Flotation is the traditional process used for concentrating sulfide ores, based on the differences in hydrophobicity exhibited by the minerals which are enhanced by collectors. Xanthates are the collectors widely used in ... -
Article
Biomass-derived graphene and nanostructured carbons: A review for electrochemical applications (2024)
(Elsevier B.V., 2024)Carbon is the most promising material today. Biomass-residues are carbon-rich and have the possibility to replace obsolete, expensive and pollutant raw sources. For instance, graphene-like materials have attracted a powerful ... -
Article
Production of poly-3-hydroxybutyrate (PHB) nanoparticles using grape residues as the sole carbon source (2024)
(Elsevier B.V., 2024)The production of poly-3-hydroxybutyrate (PHB) on an industrial scale remains a major challenge due to its higher production cost compared to petroleum-based plastics. As a result, it is necessary to develop efficient ... -
Article
Sixteen weeks of concurrent training do not increase the magnitude of the post-exercise hypotensive effect in hypercholesterolemic morbid obesity patients (2024)
(Edizioni Minerva Medica, 2024)BACKGROUND: It is widely known that concurrent exercise of moderate-intensity continuous plus resistance training (CTMICT+RT) decreases blood pressure in hypertensive and multiple patients with other comorbidities such as ... -
Article
Adsorption of a Ni single atom catalyst on a pristine nanographene (coronene) and H-H activation. A theoretical study of Ni-SAC (2024)
(Elsevier B.V., 2024)A computational study of a Ni atom in a coronene (Cor) molecule, as a model of a single-atom catalyst (SAC), was carried out using a DFT approach. The adsorption energy results of Ni on Cor (2.31–1.84 eV) are similar to ... -
Article
N- acyl homoserine lactones (AHLs) type signal molecules produced by rhizobacteria associated with plants that growing in a metal(oids) contaminated soil: A catalyst for plant growth (2024)
(Elsevier GmbH, 2024)The present study explores the potential of rhizobacteria isolated from Baccharis linearis and Solidago chilensis in metal(loid)-contaminated soil for producing N-acyl-homoserine lactones (AHLs)-type signal molecules and ... -
Article
Biocultural correlates of gross motor coordination in prepubescent children: A cross-sectional study (2024)
(John Wiley and Sons Inc, 2024)Aim: This study aimed to explore the association of gross motor coordination (GMC) with a matrix of biocultural factors in prepubescent children, taking into account weight status, somatic maturation, sociodemographic ... -
Article
Influence of TiO2 nanofiller geometry on the rheological and optical properties of poly(acrylic acid)-based nanocomposite hydrogels (2024)
(John Wiley and Sons Inc, 2024)The properties of macroscopic polymer nanocomposites are highly dependent on the nanoparticle–polymer interfacial region, which varies with the morphology of the nanoparticles. Herein, we used TiO2 nanofillers with very ... -
Article
Drought Tolerance Evaluation of ‘Zorzal,’ the Most Cultivated Common Bean in Chile, a Country Facing Desertification (2024)
(Springer, 2024)During the last decades, water distribution around the globe has been affected by climate change. Particularly, in Chile, the last decade has been marked by a mega-drought period, which has severely impacted agriculture. ... -
Article
Comparison of international height and BMI-for-age growth references and their correlation with adiposity in Brazilian schoolchildren (2024)
(Cambridge University Press, 2024)This study verified the diagnostic accuracy of the nutritional status classified by the international height and BMI references of the World Health Organization (WHO) (WHO/2007), International Obesity Task Force (IOTF/2012) ... -
Article
Association of Sitting Time With All-Cause and Cardiovascular Mortality: How Does Frailty Modify This Association? (2024)
(Human Kinetics Publishers Inc., 2024)To investigate how frailty modifies the association of sitting time with all-cause and cardiovascular mortality in Chilean adults. This prospective study included 2,604 participants aged ≥35 from the Chilean National Health ... -
Article
Highly porous CP-Ti foams manufactured with powder compaction, the space holder method and plasma-assisted sintering for biomedical applications (2024)
(Elsevier B.V., 2024)High porosity titanium foams are used to replace bone structures with low elastic modulus due to their ability to avoid the phenomenon of stress shielding. Producing foams with porosity levels above 70 % in volume using ... -
Article
Prophages carrying Zot toxins on different Vibrio genomes: A comprehensive assessment using multilayer networks (2024)
(John Wiley and Sons Inc, 2024)Vibrios, a group of bacteria that are among the most abundant in marine environments, include several species such as Vibrio cholerae and Vibrio parahaemolyticus, which can be pathogenic to humans. Some species of Vibrio ... -
Article
Relationship of household composition with sedentary behavior and eating habits of 102,072 adolescents: A representative sample of Brazil (PeNSE Study) (2024)
(John Wiley and Sons Inc, 2024)Purpose: The household composition is important for adolescents and understanding its relationship with their lifestyle habits is essential. This study aimed to analyze the relationship of household composition with sedentary ... -
Article
Parent-child associations of sleep quality: is physical activity a confounder? The EPI-FAMILY health study (2024)
(Elsevier B.V., 2024)Introduction: The incidence of sleep deprivation has increased in pediatric populations, however, the relationship with physical activity (PA) remains uncertain and lacks evidence. Although some studies have shown that ... -
Article
Comparing the effectiveness of k-different treatments through the area under the ROC curve (2024)
(John Wiley and Sons Inc, 2024)The area under the receiver-operating characteristic curve (AUC) has become a popular index not only for measuring the overall prediction capacity of a marker but also the strength of the association between continuous and ... -
Article
Removal and photocatalytic degradation of methylene blue on ZrO2 thin films modified with Anderson-Polioxometalates (Cr3+, Co3+, Cu2+): An experimental and theoretical study (2024)
(Elsevier B.V., 2024)In this work, several ZrO2 thin films modified with Anderson-type polyoxomolybdates (POMs) with general formula (NH4)6-n[XMo6O24H6]-6+n where X = Co3+, Cr3+ and, Cu2+ were prepared. Thin films were characterized through ... -
Article
Analysis of the association between high workload and musculoskeletal pain in public school teachers according to physical activity level (2024)
(IOS Press BV, 2024)BACKGROUND: A high workload has been associated with musculoskeletal pain in public school teachers. However, the hypothesis of the present study was that physical activity (PA) practice is able to attenuate this association. ...