Results 51 to 60 of about 2,283,922 (341)

Plantas de tratamiento de aguas residuales municipales en México: diagnóstico y desafíos de política pública

open access: yesTecnología y ciencias del agua, 2022
El propósito es identificar los principales desafíos de la política de tratamiento de aguas residuales municipales en México mediante un análisis estadístico descriptivo original, que distingue datos del país, así como de estados y municipios.
Antonio Cáñez-Cota
doaj   +1 more source

An annotated list of the centipedes (Chilopoda) in the National Collection of Arachnids, Instituto de Biología, Universidad Nacional Autónoma de México : Addendum: Scutigeromorpha and Scolopendromorpha [PDF]

open access: yes, 2013
This addendum to “An annotated list of the centipedes (Chilopoda) in The National Collection of Arachnids (Colección Nacional de Arácnidos, CNAN), Instituto de Biología, Universidad Nacional Autónoma de México” (México City), is based on new samples ...
Cupul-Magaña, Fabio Germán
core  

GENOTYPE-ENVIRONMENT INTERACTION TO THE YIELD STABILITY IN WHEAT IN MEXICALI, B.C., MÉXICO REGION

open access: yesTropical and Subtropical Agroecosystems, 2011
 With the finality to evaluate yield stability of varieties of wheat Cachanilla F-2000 (C), Yécora F-70 (Y) and Triguenio F-00 (TR), in El Valle de Mexicali, Baja California, under four environments of test, using the using the additive main effects and multiplicative interaction model (AMMI), was developed trials during the period from 2007 to 2008,
Edgar Omar Rueda Puente   +5 more
openaire   +1 more source

Instauración y desempeño de la primera red organizada de ictus en México ResISSSTE cerebro

open access: yesRevista de Educaci�n e Investigaci�n en Emergencias, 2023
Objetivo: Reportar la organización y desempeño de la primera red organizada de atención al ictus en México, ResISSSTE Cerebro. Materiales y métodos: Después de la aprobación de los comités de investigación se registraron prospectivamente las variables de la atención a pacientes con sospecha de infarto cerebral de menos de 24 horas de evolución que se ...
Dulce M. Bonifacio-Delgadillo   +13 more
openaire   +2 more sources

Novel Surface‐Based Bézier Metamaterials: A Higher Degree of Parametrization toward Tailoring the Effective Properties under Compression

open access: yesAdvanced Engineering Materials, EarlyView.
Cubic Bézier curves are used in the synthesis of novel surface‐based metamaterials with tunable mechanical properties. Surface‐based geometries are 3D printed and tested in compression. The resulting mechanical properties are correlated to changes in the shape of the base curve, with high potential in energy absorption through the adjustment of their ...
Alberto Álvarez‐Trejo   +2 more
wiley   +1 more source

El Centro Urbano Presidente Alemán: un caso de apropiación de vivienda colectiva de mediados del s.XX en la Ciudad de México [PDF]

open access: yes, 2007
El trabajo que aquí se presenta pretende estudiar un caso de vivienda colectiva analizando la arquitectura a partir de las prefiguraciones y refiguraciones a fin de observar las concordancias y definir los significados que el habitante proporciona a ...
México, Reyes Meza, Arais
core   +1 more source

CHARACTERIZATION OF TOMATO (Lycopersicum esculentum Mill.) CROPPING SYSTEM IN THE STATE OF JALISCO, MÉXICO

open access: yesTropical and Subtropical Agroecosystems, 2011
Cropping systems of tomatoes in the State of Jalisco, Mexico, were characterized variables useful to explain the technical and economic problems of these systems were prioritized. Five producing regions were identified: Sayula, La Cienega, Sierra de Amula, Costa Sur, and Zapotlan El Grande.
Imelda Rosana Cih Dzul   +3 more
openaire   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

Emprendimiento Empresarial Juvenil: Una evaluación con jóvenes estudiantes de universidad

open access: yesRevista Latinoamericana en Ciencias Sociales, Niñez y Juventud, 2015
(analítico): Se reflexiona aquí en torno a una de las estrategias que en México se han destacado para atender la crisis de empleo decente. Mi objetivo es indagar sobre las intenciones que los jóvenes y las jóvenes estudiantes de universidad tienen ...
Víctor Daniel García-García, México
doaj   +1 more source

SITUACION ACTUAL DEL CULTIVO DEL AGUACATE (Persea americana Mill.) EN EL ESTADO DE MÉXICO, MÉXICO

open access: yesTropical and Subtropical Agroecosystems, 2013
<p>The aim of this paper was to determine the current status of the production and marketing of avocado crop in the south of the State of Mexico in 2011. The sample size was set since the whole of registered producers in the “SEDAGRO” data base, made up of 2,814; therefore taking into account the methodology of finite populations. Sample size was
M. Rubí-Arriaga   +5 more
openaire   +3 more sources

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