Results 41 to 50 of about 424,036 (206)

Assessing contributions of deterministic versus stochastic processes to local species assembly: A field experiment with annual plant‐dominated communities in gypsum systems

Journal of Ecology, Volume 114, Issue 3, March 2026.
In this study, we experimentally show that stochasticity can play prominent roles in driving local species assembly in annual plant‐dominated communities of semiarid gypsum ecosystems. Drylands are traditionally viewed as restrictive environments that impose strong deterministic filtering effects, but neutral events can also contribute decisively to ...
Laura Ortiz, Arantzazu L. Luzuriaga, Lars Götzenberger, Pablo Ferrandis   +3 more
wiley   +1 more source

Productividad total de los factores, cambio técnico, eficiencia técnica y pib potencial en Latinoamérica

Semestre Económico, 2013
In this article the factor productivity of a group of Latin American economies is calculated and the contribution of technical change and technical efficiency is analyzed according to the economic growth of the region. In order to calculate technical change and technicalefficiency, a Cobb Douglas production function is estimated based on two comparable 
Méndez Sayago, Jhon Alexander, Méndez Sayago, Johanna Mildred, Hernández Escolar, Hugo Alfonso   +2 more
openaire   +3 more sources

Crecimiento de la productividad total de los factores en Costa Rica e inestabilidad macroeconómica

Revista de Ciencias Económicas, 2021
El presente trabajo utiliza la metodología de contabilidad de crecimiento, llamada Two-Deflator Approach, para estimar la productividad total de los factores (PTF) en Costa Rica entre 1960 y 2019. Los resultados indican que el 14 % del crecimiento económico es explicado por el crecimiento de la PTF.
openaire   +3 more sources

Prevalence of Hypertension in Venezuela: A Systematic Review and Meta‐Analysis

The Journal of Clinical Hypertension, Volume 28, Issue 3, March 2026.
ABSTRACT There are no studies that quantitatively synthesize epidemiological data on hypertension (HT) in Venezuela. To systematically review and conduct a meta‐analysis of population‐based studies on the prevalence of HT in Venezuela. For this, a literature search was conducted across the following databases: PubMed, EMBASE, Scopus, SciELO, LILACS ...
Juan Salazar, Roberto Añez, Soledad Briceño, Mayela Bracho, Carlos Esis, Egle Silva, Diego Rivera‐Porras, Valmore Bermudez   +7 more
wiley   +1 more source

La productividad del sector agroalimentario español (1993-2007) [PDF]

, 2009
Este trabajo estudia el crecimiento de la productividad de la industria de alimentación y bebidas en el periodo 1993-2007 a partir de los datos agregados de la Encuesta Industrial de Empresas.
Alarcón Lorenzo, Silverio
core  

Plant functional diversity does not dilute virus infection, but community virus prevalence positively correlates with net C3 grass production

Journal of Ecology, Volume 114, Issue 2, February 2026.
This study examines if plant functional diversity dilutes plant virus prevalence in grass hosts and evaluates how virus prevalence influences net community and host production. Functional diversity did not mitigate or amplify virus prevalence. While we found that species relationships between virus prevalence and production varied, overall, virus ...
Beatriz A. Aguirre, Erika L. Mudrak, Alexandra J. Wright, Alison G. Power   +3 more
wiley   +1 more source

Marginal product elasticity of productive factors. a translog function estimate for spanish provinces [PDF]

, 2014
La relación entre los principales factores productivos de una economía es, junto con sus niveles de dotación, uno de los elementos determinantes del crecimiento económico.
Cerro Gutiérrez, Gema, Gómez-Calero Valdés, M. Palma, Pablo-Romero Gil-Delgado, María del Populo   +2 more
core   +1 more source

Drying suppresses fine root production to 1 m depths and alters root traits in four distinct tropical forests

New Phytologist, Volume 249, Issue 4, Page 1992-2009, February 2026.
Summary Drying and drought in tropical forests, which have some of the highest net primary productivity on Earth, are likely to alter root dynamics, ecosystem function, and carbon (C) storage. We used a chronic drying experiment in four lowland Panamanian forests to investigate whether soil drying shifts tropical forest root production from surface to ...
Amanda L. Cordeiro, Daniela F. Cusack, Lee H. Dietterich, Eric Valdes, Nathan B. Gonçalves, Maíra Oliveira, Gabriela Quesada‐Ávila, S. Joseph Wright   +7 more
wiley   +1 more source

Effect of seed circulation systems on the spread and diversity of Xanthomonas phaseoli pv. manihotis infecting cassava crops of the Colombian Caribbean

PLANTS, PEOPLE, PLANET, Volume 8, Issue 1, Page 353-364, January 2026.
Cassava is a lifeline for millions of people across the tropics, but its productivity is at risk from a disease called Cassava Bacterial Blight (CBB). In this study, we explore how the everyday practices of farmers exchanging cassava cuttings—a long‐standing tradition—can shape how the disease spreads and evolves in the Colombian Caribbean.
Darío Pérez, Laurence Blondin, Sophie Caillon, Olivier Pruvost, Boris Szurek, Christian Vernière, Carlos A. Zárate‐Chaves, Anne Duputié   +7 more
wiley   +1 more source

Contribución de la Productividad Total de Factores al Crecimiento Económico en los Estilos del Desarrollo Peruano: 1975-2023

Revista Economía y Política
El artículo estima el aporte de los factores de producción y de la productividad total de factores (PTF) al Producto Bruto Interno peruano en el periodo 1975-2023 y contrasta su desempeño con los estilos de desarrollo implementados.
Andrés Ochoa Bezada, Waldemar Mercado
doaj   +1 more source