Results 61 to 70 of about 21,578 (192)
Edwin P. Hubble, astropolítico [PDF]
arXiv, 2019 Rather than offering chronologically ordered encyclopedic knowledge of a lifetime, only some of the most striking events of the existence of this well-known scientist are here pointed out. Sections: Life; Man of laws; Interest in philosophy; Astronomer, astrophysicist, cosmologist; The discovery of the expansion of the Universe; Reasonable doubt about ...
arxiv
Gap analysis of social science resources for conservation practice
Conservation Biology, Volume 39, Issue 2, April 2025.Abstract Conservation is an inherently social process—people collectively endeavor to enact conservation. Yet, in conservation social science, research methodologies, training, and competency are less common than in natural sciences. Globally, formal education and training in the social sciences are often unavailable or inaccessible to conservation ...
Diane Detoeuf +18 more
wiley +1 more source
People and Nature, Volume 7, Issue 3, Page 631-652, March 2025.Abstract Efforts to restore Peru's megadiverse Andean Forests are rapidly growing. While ecological determinants for restoration success are well known, knowledge on the socio‐economic and governance conditions that allow for the success of ecological restoration using native species is scarce.
Tina Christmann +15 more
wiley +1 more source
Analysis of an SEIR-SEI four-strain epidemic dengue model with primary and secondary infections [PDF]
Revista Electronica Conocimiento Libre y Licenciamiento (CLIC).
Vol. 7 (2014) 3-7, 2014 We propose an SEIR model for the populations and an SEI model for the vector to describe the transmission dynamics of a four-strain model with both primary and secondary dengue infections. In order to accomplish this, we propose and obtain an analytic solution of a system of 47 coupled differential equations.
arxiv
Analysis of interactions of actors of the knowledge network on malaria in Colombia [PDF]
Biomedica, 2022 Jiménez-Manjarres M +4 more
europepmc +1 more source
Rational Points on Del Pezzo Surface of degree 1 and 2 [PDF]
arXiv, 2009 We discuss the rational points on del Pezzo surface of degree 1 and 2 over any finite field $\mathbb F_q$, and give out the explicit equations of del Pezzo surfaces that have unique rational point.
arxiv
Grado de burnout en especialistas en formación de medicina y psicología clínica
Educación Médica, 2021 Resumen: Objetivo: Conocer el grado de burnout en residentes MIR/PIR de Oviedo y su relación con factores laborales y docentes. Diseño: Se realizó un estudio descriptivo transversal. Emplazamiento: Área Sanitaria IV de Asturias.
Isabel Saavedra Rionda +4 more
doaj
A note on del Pezzo fibrations of degree 1 [PDF]
arXiv, 2001 We study del Pezzo fibrations of degree 1 with terminal singularities. A connection between singularities on del Pezzo surfaces of degree 1 and Kodaira's classification of elliptic singular fibers will be studied in this paper. By this investigation we obtain several results on birational maps of del Pezzo fibrations of degree 1 with terminal ...
arxiv
Las actividades de laboratorio en Física: un cambio en la estructura a favor del conocimiento científico [PDF]
arXivIn this article we argue how the use of structured laboratory guides are pedagogically inadequate for meaningful learning. Subsequently, an approach to laboratory activities in accordance with scientific work and the constructivist vision of learning is described, exemplifying how this approach can be applied to restructure a usual laboratory practice.
arxiv
Weak Approximation for General Degree Two del Pezzo Surfaces [PDF]
arXiv, 2008 We address weak approximation for certain del Pezzo surfaces defined over the function field of a curve. We study the rational connectivity of the smooth locus of degree two del Pezzo surfaces with two A1 singularities in order to prove weak approximation for degree two del Pezzo surfaces with square-free discriminant.
arxiv