Results 51 to 60 of about 63,509,662 (197)

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

Productivity and saving channels of economic growth as latent variables: An application of confirmatory factor analysis.

Estudios de Economía, 2000
En el intento de medir las fuentes del crecimiento económico y diseñar conclusiones de política económica, los economistas confían en la contabilidad del crecimiento.
Ricardo N. Bebczuk
doaj  

Depreciación del capital fijo y productividad total de los factores en Colombia

, 2022
Magíster en Economía ...
Manuel Alejandro Paez Bastidas, Rodrigo Alfonso Cristancho   +1 more
openaire   +2 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 de los factores en la agricultura española (1752-1935) [PDF]

, 2000
Estudio sobre la producción agrícola y la productividad de los factores en la agricultura española (tierra, trabajo y simiente) desde 1752 hasta 1935.
Bringas Gutiérrez, Miguel Ángel
core  

Metodología para la medición y análisis de la productividad en operaciones mineras: productividad total de factores [PDF]

, 2021
Tesis para optar al grado de Magíster en Gestión y Dirección de EmpresasLa minería, y en particular la minería del cobre es un sector muy importante para el crecimiento en Chile, contribuyendo significativamente tanto al ingreso nacional a través de su ...
Muñoz Yévenes, Monserrat Beatriz
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

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

Una crítica de la llamada Productividad Total de los Factores

Revista de Economía Crítica
En el presente trabajo se ponen en cuestión una serie de aspectos conceptuales y empíricos relativos a la llamada productividad total de los factores. En primer lugar, y a pesar de ocupar un lugar central en la explicación neoclásica del crecimiento económico, al definirse a partir de un residuo aritmético, no ofrece rigurosidad conceptual y operativa.
openaire   +2 more sources

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