Results 131 to 140 of about 376,595 (201)

A pd‐Catalyzed Three‐Component Approach for the Synthesis of Monomeric and Dimeric Tetrahydro‐4H‐Furo[2,3‐b]Chromene Steroids

Journal of Heterocyclic Chemistry, EarlyView.
The three‐component reaction of a steroid bearing a dihydrofuran ring, with methyl orthoformate and salicylaldehyde produced chromanketals. ABSTRACT The three‐component reaction of a steroid bearing a dihydrofuran ring, with methyl orthoformate and salicylaldehyde produced chromanketals through a [4 + 2] inverse electron demand cycloaddition ...
Juan E. Hernández‐Martínez, William H. García‐Santos, Margarita Romero‐Ávila, Marcos Flores‐Álamo, Karen M. Ruiz‐Pérez, Martín A. Iglesias‐Arteaga   +5 more
wiley   +1 more source

Corrigendum to "Design and validation of an instrument for the bioethical evaluation of public health policies with a behavioral change component" [Publ. Health Pract. 11 (2026) 100742]. [PDF]

Public Health Pract (Oxf)
Martínez AC, Castrillón PA, Erazo LJL, Villegas MM, Tamayo LA, Ascanio MM, Borda JP, Lasso EF.   +7 more
europepmc   +1 more source

Aspectos generales del Departamento de Química

Revista Colombiana de Química, 2009
Universidad Nacional de Colombia Universidad Nacional de Colombia
doaj  

Contrasting Heatwave Regimes in Dry and Humid Subtropical Mexico: A Station‐Based Probabilistic Assessment

International Journal of Climatology, EarlyView.
Heatwaves have intensified under a warming climate, producing substantial environmental and societal impacts. This study characterizes heatwave regimes in two contrasting regions of Mexico using a percentile‐based threshold and a Poisson distribution framework.
Jorge Cortés‐Ramos, Ana Teresa Mendoza‐Rosas, Victor Manuel Torres‐Puente, José Francisco León‐Cruz, Evi Becerra‐Acosta, Arturo I. Quintanar, David Romero   +6 more
wiley   +1 more source

High Pyrethroid Resistance in <i>Triatoma infestans</i> Is Strongly Associated with <i>kdr</i> Variants: A Multiplex High-Resolution Melting Tool for Vector Surveillance. [PDF]

Insects
Sierra I, Traverso L, Gomez A, Lobbia PA, Mougabure-Cueto G, Domínguez G, Santini MS, Ons S.   +7 more
europepmc   +1 more source

Preliminares

Revista Colombiana de Estadística, 1994
Universidad Nacional de Colombia Universidad Nacional de Colombia
doaj  

Climate Change Projections for Mexico in the 21st Century

International Journal of Climatology, EarlyView.
Projected national temperature by the end of the century under four SSP scenarios. Under the low‐emission pathway (SSP1‐2.6), warming increases more gradually, whereas under the high‐emission scenario (SSP5‐8.5), temperatures exceed 5°C by 2100. These results strengthen the scientific basis for climate adaptation planning and long‐term decision‐making ...
Arhat Tejeda‐Aguilar, Guillermo Murray‐Tortarolo, Oscar Calderón‐Bustamante, Francisco Estrada Porrúa   +3 more
wiley   +1 more source

Perception of Barriers to Sports Practice in Persons with Disabilities in Chile: A Socio-Ecological Approach. [PDF]

Healthcare (Basel)
Muñoz-Hinrichsen F, Rojas DC, Paz LT, Farah MK, Díaz NO, Jofré JL, Ortiz SP, Araos ML, Pérez-Contreras J, Aros AM, Miranda FH.   +10 more
europepmc   +1 more source

Preliminares

Revista Colombiana de Estadística, 1991
Universidad Nacional de Colombia Universidad Nacional de Colombia
doaj  

Igniting Technological and Non‐Technological Innovation for Economic Performance: Enhancing Results by Investing in Human Capital

Strategic Change, EarlyView.
ABSTRACT This study investigates how strategic renewal, driven by the interaction among technological, marketing, and organizational innovation, enhances firms' economic performance. Using a panel dataset of 8871 Spanish firms covering the period 2009–2016, we provide empirical evidence on the different effects of each type of innovation and their ...
Beatriz Forés, José María Fernández‐Yáñez, Olga Broto, Andreas Kallmuenzer   +3 more
wiley   +1 more source