Results 41 to 50 of about 47,736 (209)

La planta ideal de yuca para obtener rendimientos máximos [PDF]

open access: yes, 2016
A series of trials were carried out using cassava. Crop growth rate increased with leaf area up to LAI 4; root growth rate increased up to LAI 3-3.5, then declined. LAI is determined by leaf size, leaf formation rate and individual leaf life.
Cock, James H.   +3 more
core  

Evaluating endophyte‐rich leaves and leaf functional traits for protection of tropical trees against natural enemies

open access: yesFunctional Ecology, Volume 39, Issue 2, Page 371-389, February 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plants use physical barriers and chemical compounds to defend themselves against natural enemies. For instance, tough leaves are considered to be better defended than soft leaves, part of a spectrum of defences defined by functional traits such as leaf chemistry ...
Bolívar Aponte Rolón   +3 more
wiley   +1 more source

Alternativa físico – recreativa para el mejoramiento de la voluntad en el adulto mayor.

open access: yesCiencia y Educación, 2021
El trabajo titulado: “Alternativa físico- recreativa para el mejoramiento de la voluntad del adulto mayor resuelve la problemática de la insuficiente orientación en el programa actual de Cultura Física y al técnico de esta especialidad, para la ...
Roberto Inocencio Chávez Chávez   +1 more
doaj  

Effect of inbreeding on the longevity of Landrace sows [PDF]

open access: yes, 2008
Ponencia publicada en ITEA, vol.104La consanguinidad es un fenómeno biológico de especial relevancia en las especies domésticas, pudiéndose caracterizar tanto en términos de coeficiente de consanguinidad como fraccionando la contribución de cada ...
Casellas, J.   +3 more
core  

Duration in power and happiness in the world

open access: yesPolitics &Policy, Volume 52, Issue 6, Page 1331-1352, December 2024.
Abstract This article examines the effect of leader longevity in power on world happiness. To make the assessment, a sample composed of 135 countries observed over the period 2006 to 2018 was constituted. The results obtained from OLS estimates show that longevity in power reduces individual happiness. Furthermore, the negative effect is more amplified
Désiré Avom   +4 more
wiley   +1 more source

The long-term population in Latin American countries [PDF]

open access: yes, 2019
Según la teoría de la transición demográfica existe un proceso a escala mundial, que en primer lugar disminuye la mortalidad en la niñez, permitiendo que la mayoría de los niños sobreviva el tiempo necesario para concebir hijos y ejercer su cuidado, con ...
Manzano, Fernando, Russo, Griselda Nora
core  

Similar climate–growth relationships but divergent drought resilience strategies in coexisting Mediterranean shrubs

open access: yesJournal of Ecology, Volume 112, Issue 8, Page 1804-1817, August 2024.
These results highlight the importance of drought as a driver of growth in Mediterranean scrublands. Growth resilience strategies differed between species with junipers being less resilient to drought than other coexisting shrubs. Further research should investigate how this difference in post‐drought resilience is related to functional traits ...
Elisa Tamudo   +5 more
wiley   +1 more source

¿Por qué las mujeres viven más que los hombres? Una revisión desde el punto de vista biológico

open access: yesRevista de Salud Ambiental, 2020
Una observación que se ha repetido a lo largo de los últimos 200 años es que las mujeres viven más que los hombres. Esta diferencia de longevidad entre sexos no puede atribuirse, por tanto, únicamente al distinto papel sociocultural que adquiere ...
Covadonga López Ramos
doaj  

Marco regulatorio Solvencia II – Pilar cuantitativo aplicado a las condiciones de riesgo de una compañía aseguradora en Colombia [PDF]

open access: yes, 2016
En el contexto de las compañías aseguradoras, el capital representa la solidez y capacidad de una compañía para responder ante las obligaciones adquiridas con los clientes en escenarios de pérdidas inesperadas -- Con la experiencia de las pasadas crisis ...
Betancur Betancur, Daniel   +1 more
core  

Genomic signatures of past megafrugivore‐mediated dispersal in Malagasy palms

open access: yesJournal of Ecology, Volume 112, Issue 7, Page 1583-1598, July 2024.
Our results suggest that the legacy of megafrugivores regularly achieving long dispersal distances is still reflected in the population genetics of palms that were formerly dispersed by such animals. Furthermore, low genetic differentiation was possibly maintained after the megafauna extinctions through alternative dispersal (e.g.
Laura Méndez   +7 more
wiley   +1 more source

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