Results 11 to 20 of about 879,176 (178)

The “click” and “bioorthogonal” chemical synthesis win the Nobel Prize 2022

open access: yes, 2022
Este año ganaron el premio Nobel de química K. Barry Sharpless y Morten Meldal por la “síntesis click” y Carolyn R. Bertozzi por la “Bioortogonal”. (Ramströn, 2022) Es muy posible que este premio hubiera empezado a gestarse cuando Sharpless recibió su ...
Wasserman, Moisés
core   +1 more source

Antioxidant Activity and Preliminary Determination of Major Compounds from Selected Rhodophyta and Ochrophyte Macroalgae from Colombia

open access: yes, 2023
: Among the vast worldwide marine biodiversity, macroalgae could be the most suitable source for bioprospection and sustainable development due to the great availability in the sea, leading to enough biomass production for different applications based on
Arango Jaramillo, Juan José   +5 more
core  

Productos naturales que adelgazan... ¿una buena alternativa? [PDF]

open access: yes, 1995
La obesidad y otras enfermedades relacionadas como la arteriosclerosis y afecciones cardiovasculares, por una parte y la bulimia y anorexia, por otra, son temas de candente actualidad, tanto desde el punto de vista científico como social.
Nitiu, Daniela Silvana   +4 more
core   +1 more source

Coupling phenotypic changes to extinction and survival in an endemic prey community threatened by an invasive snake

open access: yesScientific Reports, 2022
When facing novel invasive predators, native prey can either go extinct or survive through exaptation or phenotypic shifts (either plastic or adaptive).
Julien C. Piquet   +2 more
doaj   +1 more source

Effects in rats of bee-wax alcohols (D-002) on ulcerative colitis induced by dextran sulfate and ethanol

open access: yesRevista Peruana de Medicina Experimental y Salud Pública, 2017
Objectives. To investigate the effects of D-002, a mixture of 6 high molecular weight primary aliphatic alcohols, obtained from beeswax (Apis mellifera), on severe inflammatory ulcerative colitis (UC) induced by Dextran sulfate (DSS) and ethanol in rats (
Vivian Molina-Cuevas   +8 more
doaj   +1 more source

Caracterización térmica, mecánica y morfológica de fibras naturales colombianas con potencial como refuerzo de biocompuestos

open access: yes, 2018
Este estudio se enmarca en el campo de la ciencia e ingeniería de materiales enfocada al desarrollo de nuevos compuestos amigables con el medio ambiente.
Mora Espinosa, William J.   +3 more
core   +1 more source

Evolution of free amino acids and volatile compounds in dry‐cured fermented 'salchichón' sausages superficially inoculated with different molds

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Surface molds contribute to flavor development in dry‐cured fermented sausages through their effects on proteolysis, amino acid catabolism, and volatile compound formation. This study evaluated the influence of Aspergillus oryzae, Penicillium camemberti, Penicillium roqueforti and Penicillium nalgiovense on the evolution of free ...
José María Martín‐Miguélez   +4 more
wiley   +1 more source

Endophytic fungi from two isolated Bethencourtia palmensis populations: metabolomic and bioactivity fingerprinting

open access: yesPest Management Science, EarlyView.
We compared two island populations of Bethencourtia palmensis and their culturable endophytic fungi, revealing distinct plant chemistries and a higher biopesticidal potential in the endophytic fungi from La Palma population along with high potential for the discovery of novel compounds.
Jorge Rojas López‐Menchero   +4 more
wiley   +1 more source

El Instituto de Ciencias Naturales (1936-2019): de la historia natural al conocimiento de la biodiversidad en Colombia

open access: yes, 2020
Se describen y se relacionan en una línea de tiempo los antecedentes institucionales sobre el origen y los hechos más notables del Instituto de Ciencias Naturales, y se analizan los alcances de sus contribuciones al conocimiento de la historia natural en
Amat García, Germán   +1 more
core   +1 more source

Water Use Behavior of Individual Birds: Ring Ouzels in an Arid High‐Mountain Ecosystem

open access: yesIntegrative Zoology, EarlyView.
Water is a limiting resource for birds in arid ecosystems. Individual birds differ strongly in how they use shared water sources, with drinking behavior increasing with temperature. Behavioral differences, hierarchy, and social context ultimately shape unequal access to water within the population. ABSTRACT Water availability strongly constrains animal
Tamara Burgos   +4 more
wiley   +1 more source

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