Buscar
Mostrando ítems 2661-2670 de 2863
Removal of Mo(VI), Pb(II), and Cu(II) from wastewater using electrospun cellulose acetate/chitosan biopolymer fibers (2024)
(Elsevier B.V., 2024)
Environmentally friendly polymers such as cellulose acetate (CA) and chitosan (CS) were used to obtain electrospun fibers for Cu2+, Pb2+, and Mo6+ capture. The solvents dichloromethane (DCM) and dimethylformamide (DMF) ...
Air-Stable Cobalt(III) and Chromium(III) Complexes as Single-Component Catalysts for the Activation of Carbon Dioxide and Epoxides (2024)
(American Chemical Society, 2024)
Cobalt(III) and chromium(III) salophen chloride complexes were synthesized and tested for the cycloaddition of carbon dioxide (CO2) with epoxides to obtain cyclic carbonates. The cat1, cat2, cat4, and cat5 complexes presented ...
Synthesis and theoretical study of a new family of pyrazole derivative (2024)
(Elsevier B.V., 2024)
Pyrazole-containing molecules are key in the development of new pharmaceuticals or pesticides. Thus, we synthesize a new series of pyrazole derivates using the cycloaddition methods. The synthesized compounds present a ...
Searching for the DNA of urbanisation. A material perspective (2024)
(Elsevier Ltd, 2024)
Broadly accepted categorical differentiations of urbanisation understand cities as well-defined objects containing urban spaces in contrast to their hinterlands. However, urbanisation's multidimensional complexity challenges ...
Furfural adsorption on V2O5 surface: A combined experimental-theoretical study (2024)
(Elsevier B.V., 2024)
The adsorption of furfural on the V2O5 surface was investigated using experimental and theoretical methods. In situ Diffuse Reflectance Infrared Fourier-Transform Spectroscopy results show the presence of physi- and ...
Reclassification of Some Exiguobacterium Species Based on Genome Analysis (2024)
(Springer, 2024)
The Exiguobacterium genus comprises Gram-stain-positive and facultatively anaerobic bacteria. Some Exiguobacterium species have previously shown significant high 16S rRNA gene sequence similarities with each other. This ...
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 ...
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 ...
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. ...
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 ...