Results 21 to 30 of about 222,901 (162)

Química Verde y Sostenibilidad en la educación en ciencias en secundaria [PDF]

open access: yes, 2016
Este trabajo se plantea estudiar el papel de la Química Verde en la educación cientí ca para contribuir, desde ese campo, a la Ciencia de la Sostenibilidad y, por tanto, a la transición hacia sociedades sostenibles.
Mascarell Borredà, Laura   +1 more
core   +4 more sources

El enfoque de química verde en la investigación en didáctica de las ciencias experimentales. Su abordaje en revistas iberoamericanas: 2002-2018

open access: yesEducación Química, 2020
En este artículo se comunican los resultados de una investigación documental orientada al análisis de la producción escrita en el área de la denominada química verde enfocada a la investigación en didáctica de las ciencias experimentales en el ámbito ...
Ricardo Andrés Franco Moreno   +1 more
doaj   +1 more source

Structural features of high-local-density water molecules: Insights from structure indicators based on the translational order between the first two molecular shells [PDF]

open access: yes, 2019
The two-liquids scenario for liquid water assumes the existence of two competing preferential local molecular structural states characterized by either low or high local density.
Accordino, Sebastián R.   +4 more
core   +1 more source

Química Verde: un nuevo enfoque para el cuidado del medio ambiente

open access: yesEducación Química, 2018
Uno del los conceptos más atractivos en química para lograr la sustentabilidad es la Química Verde, cuyo objetivo es la utilización de un grupo de principios que reducen o eliminan el uso o generación de sustancias peligrosas en el diseño, manufactura y ...
María del Carmen Doria Serrano
doaj   +1 more source

Marine radiocarbon reservoir effect of coastal waters off Cape Verde archipelago [PDF]

open access: yes, 2011
Quantification of the marine radiocarbon reservoir effect (Delta R) is essential in order to calibrate conventional C-14 dates from marine shell samples with reliability.
Ascough   +7 more
core   +1 more source

Polyphenol-Dietary Fiber Conjugates from Fruits and Vegetables: Nature and Biological Fate in a Food and Nutrition Perspective

open access: yesFoods, 2023
In the past few years, numerous studies have investigated the correlation between polyphenol intake and the prevention of several chronic diseases. Research regarding the global biological fate and bioactivity has been directed to extractable polyphenols
Ana Fernandes   +2 more
doaj   +1 more source

Determination of biosorption mechanism in biomass of agave, using spectroscopic and microscopic techniques for the purification of contaminated water [PDF]

open access: yes, 2019
[Abstract] Lead (Pb2+) and copper (Cu2+) are polluting metals due to their toxicity; however, the extraction of these metals is essential for economic development, so it is important to look for efficient and low-cost alternatives that can remove heavy ...
Barriada, José Luis   +6 more
core   +1 more source

Paracetamol extraction tablets: a green technique for teaching of pharmaceutical chemistry

open access: yesRevista Brasileira de Ensino de Ciência e Tecnologia, 2020
This work presents the evaluation of the chemical vegetable for the extraction of the active ingredient of paracetamol 500 mg tablets, with optimization of the process through the holistic metrics of Green Chemistry. The previous analysis, indicated as a
Juliana Aparecida Bolzan   +2 more
doaj   +1 more source

Bioactive Ingredients in Traditional Fermented Food Condiments: Emerging Products for Prevention and Treatment of Obesity and Type 2 Diabetes

open access: yesJournal of Food Quality, 2023
Obesity and type 2 diabetes (T2D) are severe metabolic diseases due to inappropriate lifestyle and genetic factors and their prevention/treatment cause serious problems. Therefore, searching for effective and safe approaches to control obesity and T2D is
Alphonse Laya   +5 more
doaj   +1 more source

Synthesis of 2,2-diphenyl-1,3,2-oxazaborolidin-5-one promoted by montmorillonite and microwaves: A green approach methodology

open access: yesResults in Chemistry
Studies have shown that the heterocyclic molecules of the 2,2-diphenyl-1,3,2-oxazaborolidin-5-one (DPOXA) type have wide and varied biological activity with herbicidal, insecticidal, fungicidal, antibacterial, and apoptotic properties.
Rodrigo González-Castañeda   +5 more
doaj   +1 more source

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