Results 81 to 90 of about 709,938 (307)
Examinig the roloe of economic liberalization in entrepeneurship: a cross-country study [PDF]
, 2016 In the last few decades some authors have underlined the role of institutions and policies for entrepreneurship. North (1990) underlines that entrepreneurs are the main agents of change and that organizations, such as firms set up by entrepreneurs, adapt
Abad-Guerrero, Isabel Maria +2 more
core
ChemSusChem, Volume 18, Issue 6, March 15, 2025.Lithium carbonate (Li2CO3) obtained from the black mass of recycled lithium batteries is dissolved in water under controlled conditions to remove lithium fluoride (LiF), which is present at a concentration of 3.08 % by weight. The dissolution is carried out at temperatures below 10 °C, and it has been demonstrated that lower temperatures result in ...
Laura Rosso +3 more
wiley +1 more source
Democracia, ciudadanía y violencia en Guerrero después de Ayotzinapa (2014-2024)
EntretextosLa presente investigación describe y explica la impunidad estructural de la desaparición de los 43 estudiantes de la Escuela Normal Raúl Isidro Burgos, ocurrida las noches del 25 y 26 de septiembre del 2014, en la configuración contemporánea de la ...
Kenya Hernández Vinalay +1 more
doaj +1 more source
Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers
The Curriculum Journal, EarlyView.Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová +6 more
wiley +1 more source
EntretextosEl objetivo principal del presente trabajo es describir y explicar, la relación teórica y analítica, entre tres conceptos; Ciudadanía, etnicidad y reconocimiento, con el propósito de configurar una teoría fuerte de ciudadanía étnica, categoría que ...
Zenaido Ortiz Añorve +1 more
doaj +1 more source
, 2023 En el ordenamiento jurídico ecuatoriano, las personas jurídicas tienen responsabilidad penal; frente a esto, el Programa de Cumplimiento se ha propuesto como atenuante. Esto implica que concurran vacíos legales que a su vez causan una grave inseguridad jurídica.
openaire +1 more source
The Quantum Arnold Transformation and the Ermakov-Pinney equation
, 2013 The previously introduced Quantum Arnold Transformation, a unitary operator mapping the solutions of the Schr\"odinger equation for time dependent quadratic Hamiltonians into the solutions for the free particle, is revised and some interesting extensions
Guerrero, Julio +1 more
core +1 more source
Spatial distribution of acoustic traits in bird assemblages along regional bioclimatic gradients
Ecography, EarlyView.Environmental variation shapes acoustic interactions among birds, creating spatial structures in the sonic signature of local species assemblages. Exploring these patterns at regional scales can reveal processes that segregate acoustic strategies along environmental gradients.
Michela Busana +11 more
wiley +1 more source
Una crítica feminista al sistema de cuidados patriarcales de la Tercera Edad en Guerrero (1988-2018)
EntretextosEl presente trabajo de investigación tiene como propósito describir y explicar las causas institucionales y sociales de la ausencia de un sistema de cuidados de salud para un grupo vulnerable como lo es la tercera edad en el estado de Guerrero, durante ...
María Leal Ortuño
doaj +1 more source