Results 71 to 80 of about 1,296,721 (228)

Linking forest cover, soil erosion and mire hydrology to late-Holocene human activity and climate in NW Spain [PDF]

open access: yes, 2014
This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work without further ...
Aira Rodríguez MJ   +23 more
core   +1 more source

Bridging Psychological Stress and Skin Cellular Aging: Flavonoids as a Dual‐Action Therapeutic Strategy

open access: yesPhytotherapy Research, EarlyView.
ABSTRACT Psychological stress (or simply “stress”) is a major contributor to chronic disease worldwide, affecting 35% of the global population, including younger generations. Furthermore, it plays a significant role in human premature aging; hence, its detrimental effects on people's health compel us to comprehend and control the ways in which ...
Marco Duarte   +3 more
wiley   +1 more source

Química mineral e estimativas de pressão e temperatura em rochas metassedimentares do grupo Araxá na região de Morrinhos, sul do estado de Goiás

open access: yes, 2011
Na regiao de Morrinhos, estado de Goias, as rochas do Grupo Araxa apresentam associacoes minerais, relacionadas ao apice metamorfico, tipicas da facies anfibolito (zona da cianita) e sao correlacionadas a estagio anterior ou inicial da principal fase ...
G. Navarro   +4 more
semanticscholar   +1 more source

Citrate and Polyvinylpyrrolidone Stabilized Silver Nanoparticles as Selective Colorimetric Sensor for Aluminum (III) Ions in Real Water Samples [PDF]

open access: yes, 2020
The use of silver nanoparticles stabilized with citrate and polyvinylpyrrolidone as a sensor for aluminum ions determination is proposed in this paper. These non-functionalized and specific nanoparticles provide a highly selective and sensitive detection
López Pérez, Germán   +4 more
core   +1 more source

Biodegradable Sodium Alginate Films Incorporated With Jateorhiza palmata (Lam.) Miers Extract for Active Food Packaging

open access: yesPackaging Technology and Science, EarlyView.
Development of biodegradable sodium alginate films incorporated with J. palmata root extracts showing enhanced antioxidant and functional properties for active food packaging applications. ABSTRACT Biodegradable packaging helps reduce environmental impact by decomposing naturally and preventing plastic accumulation in ecosystems.
Carlos Augusto Badillo Almeira   +4 more
wiley   +1 more source

Valorization of Garcinia humilis Residues in Active Collagen/Starch Films for Biodegradable Packaging Applications

open access: yesPackaging Technology and Science, EarlyView.
Residues from Garcinia humilis were used to obtain a phenolic‐rich extract (GHRE) and incorporated into collagen–starch films. The addition of GHRE improved antioxidant activity, thermal stability and elasticity, while reducing water vapour permeability.
Érica da Costa Monção   +7 more
wiley   +1 more source

A Ocorrência Alcalina de Cananeia, Litoral Sul do Estado de São Paulo: Química Mineral

open access: yes, 2009
The Cananeia alkaline occurrence of Late Cretaceous age (Ar-Ar, 83.6 Ma) lies in the Ribeira Valley and it is represented by two small bodies: Morro de Sao Joao (1.8 km²) in Cananeia Island, and Morrete (0.4 km²), in the neighboring Comprida Island.
F. Spinelli, C. Gomes
semanticscholar   +1 more source

From plant to fabric: Environmental opportunities associated with annatto dye for sustainable development in the textile industry

open access: yesColoration Technology, EarlyView.
Abstract Natural dyes are compounds that occur naturally in several organisms and are classified based on chemical structure and application method. The literature cites several natural dyes used in industrial transformation processes. Annatto dye is used in the food industry, and its biological pigment is extracted from the annatto seed. However, this
Marcel Jefferson Gonçalves   +5 more
wiley   +1 more source

The Development and Evaluation of Biosorbent Composite Spheres for the Adsorption and Quantification of Copper

open access: yesSeparations
Separation techniques are employed to treat and preconcentrate samples. Preconcentration commonly employs adsorption due to the wide range of sorbents available. The biosorbent composite has emerged as a highly effective alternative, primarily due to its
Irma Pérez-Silva   +4 more
doaj   +1 more source

Electrocoagulation of whey acids: anode and cathode materials, electroactive area and polarization curves

open access: yesJournal of Electrochemical Science and Engineering, 2017
Anode (Al and Fe) and cathode (graphite and Ti/RuO2) materials have been tested for electrocoagulation (EC) and purification of the acid whey. The electroactive areas (EA) of electrodes were calculated by the double layer capacitance method.
Francisco Prieto Garcia   +3 more
doaj   +1 more source

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