Results 41 to 50 of about 253,783 (224)
The Tractor and Semitrailer Routing Considering Carbon Dioxide Emissions
Mathematical Problems in Engineering, Volume 2013, Issue 1, 2013., 2013 The incorporation of the minimization of carbon dioxide (CO2) emissions in the VRP is important to logistics companies. The paper deals with the tractor and semitrailer routing problem with full truckload between any two depots of the network; an integer programming model with the objective of minimizing CO2 emissions per ton‐kilometer is proposed.
Hongqi Li +5 more
wiley +1 more source
The Effects of the Tractor and Semitrailer Routing Problem on Mitigation of Carbon Dioxide Emissions
Discrete Dynamics in Nature and Society, Volume 2013, Issue 1, 2013., 2013 The incorporation of CO2 emissions minimization in the vehicle routing problem (VRP) is of critical importance to enterprise practice. Focusing on the tractor and semitrailer routing problem with full truckloads between any two terminals of the network, this paper proposes a mathematical programming model with the objective of minimizing CO2 emissions ...
Hongqi Li +5 more
wiley +1 more source
LA EDUCACIÓN DE EL DE ERUDITIONE FILIORUM NOBILIUM DE VICENTE DE BEAUVAIS (1190-1264)
Educación XX1, 2012 El presente artículo analiza la educación de la mujer en el De eruditione filiorum nobilium de Vicente de Beauvais (1246). Una obra latina, prácticamente inédita, que puede considerarse el primer tratado de pedagogía sis- temática escrito en el mundo
Javier Vergara Ciordia
doaj +1 more source
Revista Mexicana de Ciencias Pecuarias, 2022 Técnicas moleculares requieren extracciones de ácidos nucleicos en cantidad y pureza adecuadas. Este trabajo describe un modelo lineal generalizado (GLM) de un factor ajustado con efectos fijos sobre el rendimiento de ácido nucleico (ng/μl) y la pureza (
Carolina Sancho-Blanco +3 more
doaj +1 more source
Dynamic Aerobic Exercise Induces Baroreflex Improvement in Diabetic Rats
Journal of Diabetes Research, Volume 2012, Issue 1, 2012., 2012 The objective of the present study was to investigate the effects of an acute aerobic exercise on arterial pressure (AP), heart rate (HR), and baroreflex sensitivity (BRS) in STZ‐induced diabetic rats. Male Wistar rats were divided into control (n = 8) and diabetic (n = 8) groups. AP, HR, and BRS, which were measured by tachycardic and bradycardic (BR)
Luciana Jorge +6 more
wiley +1 more source
, 2017 Se describen brevemente los trabajos de multiplicacion de semilla en Palmira, Quilichao y Carimagua (Colombia). La pureza de la semilla de Andropogon gayanus se determino por el metodo de estimacion indirecta de Pureza International.
International Center for Tropical Agriculture
core +1 more source
Decontesting an essentially contested concept: The standardization of sustainable finance
Business Strategy and the Environment, Volume 34, Issue 1, Page 39-56, January 2025.Abstract The aim of this article is to investigate how the standardization process and the public consultations carried out in the development of new sustainable finance standards and laws tend to shape the decontestation of practices in this field. The analysis of 255 comment letters submitted by various stakeholders in the context of these public ...
Olivier Boiral +4 more
wiley +1 more source
Escuchando las voces de los profesores
Papeles, 2014 Este artículo es producto de la investigación “Creencias de un grupo de trece profesores sobre las condiciones laborales que dignifican y precarizan su profesión”, el cual pretende dar a conocer lo que creen los profesores a través de su propia voz, por
Ángela Delgado Casallas
doaj
Extracción de ADN total de formas silvestres de Phaseolus vulgaris L., con el método CTAB
Tecnociencia ChihuahuaUno de los principales objetivos de la extracción de ADN es obtener material con alta pureza y en cantidad suficiente. Se han reportado métodos para aislar ADN total a partir de tejido foliar de Phaseolus vulgaris.
Liliana Wallander Compeán +3 more
doaj +1 more source
Revista Investigaciones y Aplicaciones Nucleares, 2017 Se presenta una revisión acerca de los radionúclidos que se producen en reactores nucleares y sus aplicaciones como radiotrazadores en hidrología, agricultura, industria, medicina, medio ambiente e investigación en general, tanto en Latinoamérica como ...
David Leonardo Alonso +3 more
doaj +1 more source