Results 31 to 40 of about 33,885 (237)

The evidence base for ranger patrol effectiveness in conservation and how to improve it

open access: yesBiological Reviews, EarlyView.
ABSTRACT Ranger patrols are a cornerstone of wildlife protection efforts around the world and occur across all ecological governance systems. Evidence that patrols reduce threats to wildlife and enable their recovery has not been systematically examined previously.
Trina Rytwinski   +19 more
wiley   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal   +3 more
wiley   +1 more source

Design and implementation of a 3D‐printed modular distillation tower for experimental teaching in chemical engineering

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Several authors have reported the disconnection between the skills, abilities, and attitudes of graduates from STEM careers with the current needs of the labour market. In science and engineering fields, research has found the need for interdisciplinary approaches that encourage meaningful learning.
Úrsula Manríquez‐Tolsá   +7 more
wiley   +1 more source

Chemical engineering as an essential element of industrial biotechnology in Mexico: New aims in research and university education

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract On the centennial of higher education in Chemical Engineering in Mexico, it is pertinent to revisit the key stages that have contributed to its consolidation as a vital discipline for the nation's scientific and technological advancement. Although the initial mission of chemical engineering education was primarily oriented toward the training ...
Agustín López Munguía   +3 more
wiley   +1 more source

Breve historia de la Enfermería en México

open access: yesCuidArte, 2012
Los aztecas vivían en el México precortesiano, eran politeístas, ellos sostenían la visión de que los acontecimientos astronómicos podían afectar las funciones corporales, y a la inversa, el comportamiento humano podía afectar el equilibrio y la ...
Leticia Cuevas Guajardo   +1 more
doaj   +1 more source

WSPLK: A systematic approach to the thermodynamic characterization of light and heavy Mexican crude oil

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract A streamlined characterization framework (WSPLK) is presented for modelling complex reservoir fluids using cubic equations of state. The key methodological contribution is the introduction of a single global parameter ε directly into Pedersen's boiling‐point correlation, restoring pure‐component calibration and eliminating the need for ...
Angélica Merlo‐Robredo   +3 more
wiley   +1 more source

Riesgos y daños a la salud de las adolescentes por el uso de la pastilla de emergencia

open access: yesCuidArte, 2012
La deficiente educación sexual hacia las adolescentes en México y la poca regulación de venta conllevan a un uso desmedido de la pastilla de emergencia.
Jasibe Samanta Villegas Díaz   +3 more
doaj   +1 more source

Can ISO/IEC 17025 serve as a tool to prevent scientific fraud in chemical research laboratories?

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Scientific fraud has been documented across multiple disciplines, and chemistry is no exception. Recent studies indicate that contamination of materials, methodological errors, and unreliable data, results, or analyses account for over 25% of retracted publications.
Flor Monica Gutierrez‐Alcantara
wiley   +1 more source

Manejo de fracturas por el personal docente de la escuela primaria "Hermanos Galeana" Turno Vespertino.

open access: yesCuidArte, 2012
Este estudio tuvo por objeto identificar si el personal docente de la Escuela Primaria “Hermanos Galeana” lleva a cabo un manejo adecuado de fracturas al presentarse en sus alumnos.
Mónica Medina Tapia   +3 more
doaj   +1 more source

Fútbol en Cuba. Entre el balón y “la pelota” en la comunidad global

open access: yesSecuencia, 2022
Miguel Lisbona Guillén, Fútbol en Cuba. Entre el balón y “la pelota” en la comunidad global, México, Centro de Investigaciones sobre América Latina y el Caribe-UNAM/Centro de Investigaciones Multidisciplinarias sobre Chiapas y la Frontera Sur-UNAM, 2021,
Pedro Sergio Urquijo Torres
doaj   +1 more source

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