Results 31 to 40 of about 1,172,652 (186)

Evaluating composted sewage sludge as a phosphorus fertilizer in wheat grown on soils with different properties

open access: yesJournal of Environmental Quality, Volume 55, Issue 1, January/February 2026.
Abstract Urbanization generates significant amounts of sewage sludge (SS), with relatively high concentrations of plant nutrients such as phosphorus (P). When biochemically stabilized by composting, SS (composted sewage sludge [CSW]) can serve as a sustainable P source in agriculture, supporting a circular economy and reducing agriculture's dependence ...
Lucía Guerrero‐Gallardo   +7 more
wiley   +1 more source

Manual de Gestión de Calidad para la manufactura de puros de la Empresa Puros de Estelí Nicaragua S.A (PENSA) [PDF]

open access: yes, 2017
El presente artículo hace referencia a la importancia de implementar un manual de gestión de calidad para la manufactura de puros dentro de cualquier tipo de empresa que desee alcanzar niveles elevados de calidad.
Cruz Barreda, Máxima Suyen   +2 more
core   +1 more source

Data Mining to Identify University Student Dropout Factors

open access: yesApplied Sciences
University dropout poses academic, social, and economic challenges that call for effective prevention strategies. The objective was to identify determining factors of student dropout through educational data mining and machine learning models.
Yuri Reina Marín   +6 more
doaj   +1 more source

Role of forest edges and other seminatural linear landscape features in structuring wild bee habitat connectivity in intensively managed landscapes

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Pollinator conservation schemes typically focus on conserving existing, restoring degraded, or creating new wild bee habitats. Their effectiveness depends on dispersal corridors enabling habitat colonization by bees. However, the role of seminatural linear landscape structures (LLS) in connecting pollinator communities across intensively ...
Markus A. K. Sydenham   +6 more
wiley   +1 more source

Identificación de los factores de éxito en empresas certificadas [PDF]

open access: yes, 2000
La teoría de la gestión de la calidad se ha estudiado desde diferentes perspectivas: ideas de los líderes de la calidad, investigaciones empíricas y modelos formales de evaluación. A partir de una revisión de estos trabajos identificamos ocho factores de
Conca Flor, Francisco José   +2 more
core   +1 more source

Puntos fuertes y débiles en la formación por competencias según los graduados universitarios españoles

open access: yesRed U, 2013
El objetivo del trabajo es el análisis exploratorio descriptivo de las competencias que los titulados universitarios consideran puntos fuertes o débiles en sus estudios. Este objetivo se plantea a raíz de la creciente importancia que
Andrea Conchado Peiró   +1 more
doaj  

Analysis of factors affecting the academic performance of university students using machine learning

open access: yesScientific Reports
Understanding the determinants of university students’ academic performance has become a strategic priority for higher education institutions, especially in contexts marked by social, economic, and academic diversity.
Yuri Reina Marín   +6 more
doaj   +1 more source

The Impact of Sustainable Nitrogen Management on the Health Risks of Unsafe Drinking Water and the Mediating Role of Food Production

open access: yesReview of Policy Research, Volume 42, Issue 6, Page 1496-1508, November 2025.
ABSTRACT This study adopts a policy‐centric perspective to explore the complex relationship between sustainable nitrogen management (SNM) and the health risks associated with unsafe drinking water. The critical policy challenge lies in balancing the essential role of nitrogen fertilizers in achieving high agricultural productivity with their ...
Mingean Park   +3 more
wiley   +1 more source

Modelo Malcolm Baldrige para la gestión de calidad total, en la empresa Servicios Ortuño y Castellón R.L, Estelí – Nicaragua, segundo semestre 2017 [PDF]

open access: yes, 2018
Este estudio se basa en el modelo Malcolm Baldrige para la gestión de calidad total en la empresa Servicios Ortuño y Castellón R.L (ORTYCAST), de la ciudad de La Trinidad – Estelí, en el cual se describen las concepciones de gestión de calidad como son ...
Rodríguez Valdivia, Ammy Massiel   +1 more
core  

Método rápido de verificación de mutantes de Escherichia coli empleados en ingeniería genética

open access: yesVacciMonitor, 2018
Para las metodologías de ADN recombinante, los biólogos moleculares emplean mutantes de Escherichia coli que son adquiridos de kit comerciales o de colecciones microbianas especializadas.
Annia González-Crespo   +2 more
doaj  

Home - About - Disclaimer - Privacy