Results 41 to 50 of about 559,503 (222)

Beyond species means – the intraspecific contribution to global wood density variation

open access: yesNew Phytologist, Volume 249, Issue 6, Page 2630-2651, March 2026.
Summary Wood density is central for estimating vegetation carbon storage and a plant functional trait of great ecological and evolutionary importance. However, the global extent of wood density variation is unclear, especially at the intraspecific level. We assembled the most comprehensive wood density collection to date, including 109 626 records from
Fabian Jörg Fischer   +105 more
wiley   +1 more source

Utilización de la reacción en cadena de la polimerasa para amplificar dos secuencias del gen glicina decarboxilasa que codifica para la proteína P del sistema de clivaje de la glicina, relacionado con hiperglicinemia no cetósica

open access: yesActa Biológica Colombiana, 2001
Los Errores Congénitos del Metabolismo son trastornos bioquímicos de origen genético, que causan un defecto específico en la estructura o función de las moléculas proteicas involucradas en una vía metabólica.Dentro de los errores innatos del metabolismo ...
E. A. Gallego   +10 more
doaj  

Impacto del maíz transgénico sobre las comunidades microbianas del suelo y plantas: Una revisión sistemática

open access: yesRevista de Investigaciones Universidad del Quindío, 2022
El objetivo de este trabajo es determinar los cambios en la estructura de la comunidad bacteriana en cultivos transgénicos de maíz así como su impacto en otras plantas.
Angie S. Carrero-Ramírez   +2 more
doaj   +1 more source

Colegio Mayor

open access: yes, 1927
En este artículo el autor reflexiona acerca del periodo donde se organizaron las primeras universidades que podían otorgar grados. En este caso, el de Colegio Mayor para los claustros que se dedicaban a la orientación y formación de la élite criolla.
openaire   +1 more source

Analysis of the practice of social promotion of Mayor of Bolivar : towards the construction of knowledge from active participatory research [PDF]

open access: yes, 2015
A partir de la siguiente pregunta: ¿cómo retroalimentar las prácticas del programa de tecnología en promoción social del colegio mayor de bolívar, para la construcción de saberes desde el conocimiento de lo cotidiano?, Surge el objetivo central del ...
Uparela Díaz, Lucy del Rosario   +1 more
core  

Global insular leaf size shifts follow the island rule, independently of insect herbivory and macroclimate

open access: yesJournal of Ecology, Volume 114, Issue 2, February 2026.
We found a positive, non‐linear, saturating relationship between mainland and island leaf sizes, reflecting an island rule‐like pattern. Small‐leaved mainland species tend to develop larger leaves on islands, while this effect weakens for larger‐leaved species, a pattern consistent across both conspecific and congeneric comparisons. Abstract The island
Xoaquín Moreira   +21 more
wiley   +1 more source

Conocimientos, percepciones y prácticas relacionadas a VIH/SIDA en adolescentes de un distrito de Lambayeque Perú, 2015 [PDF]

open access: yes, 1943
Objetivo: describir los conocimientos, percepciones y prácticas relacionadas a VIH/SIDA en adolescentes de Lambayeque-Perú en el 2015. Materiales y métodos: estudio descriptivo transversal con análisis exploratorio. Se encuestaron 677 alumnos de colegios
Baca Sanchez, Juan William   +1 more
core   +5 more sources

Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

Modelo de cuantificación del consumo energético en edificación [PDF]

open access: yes, 2012
The research conducted in this paper focuses on the generation of a model for the quantification of energy consumption in building. This is to be done through one of the most relevant environmental impact indicators associated with weight per m2 of ...
Mercader-Moyano, Pilar   +2 more
core   +2 more sources

Anxiolytic Medication Use in Low‐ Middle‐ and High‐Income Countries: A World Mental Health Surveys Report

open access: yesHuman Psychopharmacology: Clinical and Experimental, Volume 41, Issue 1, January 2026.
ABSTRACT Background Anxiolytic medications, particularly benzodiazepines, are widely prescribed, giving impetus to long‐standing debates about how often these agents should be employed in clinical practice. There are, however, few cross‐country studies of the pharmacoepidemiology of these agents. We report on the frequency of anxiolytic medication use,
Dan J. Stein   +31 more
wiley   +1 more source

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