Results 61 to 70 of about 377,631 (237)

La obra de un historiador americanista

open access: yesInvestigaciones y Ensayos, 2021
En el presente trabajo, se intenta una revisión de la ingente labor historiográfica del conocido americanista mexicano. A la vez, se valoran las principales obras y el aporte que ellas significaron para el pasado americano.
Edberto Oscar Acevedo
doaj   +2 more sources

La lectura: juego, descubrimiento, placer [PDF]

open access: yes, 2001
[Resumen] La lectura -que en su etapa de aprendizaje no debe separarse de la escritura- ha de ser un juego para el niño que empieza a descifrar ese "mundo de jeroglíficos", en palabras de EUmbral.
Pérez, Miguel José
core   +1 more source

The scope of empowerment for conservation and communities

open access: yesConservation Biology, Volume 39, Issue 1, February 2025.
Abstract Conservationists increasingly position conservation that is mutually beneficial to people and biodiversity on the promise of empowerment of people through participatory discourse, metrics, processes, and outcomes. Empowerment represents multidimensional concepts and theories that permeate the interlinking levels of power, from the ...
Michael A. Petriello   +8 more
wiley   +1 more source

El segundo descubrimiento de América [PDF]

open access: yes, 1992
1 archivo PDF (2 páginas); incluye ilustraciones en blanco y negro. fhquattuorBreve historia del descubrimiento de América donde se dice que en torno a esto todo fue planeado nada fue fortuito y nada fue como se ha ...
Rivas Iturralde, Vladimiro
core  

Criteria for extension of commutativity to fractional iterates of holomorphic self‐maps in the unit disc

open access: yesJournal of the London Mathematical Society, Volume 111, Issue 2, February 2025.
Abstract Let φ$\varphi$ be a univalent non‐elliptic self‐map of the unit disc D$\mathbb {D}$ and let (ψt)$(\psi _{t})$ be a continuous one‐parameter semigroup of holomorphic functions in D$\mathbb {D}$ such that ψ1≠idD$\psi _{1}\ne {\sf id}_\mathbb {D}$ commutes with φ$\varphi$.
Manuel D. Contreras   +2 more
wiley   +1 more source

Descubrimiento de Colocaciones Utilizando Semántica [PDF]

open access: yes, 2016
Collocations are combinations of two lexically dependent elements, of which one (the base) is freely chosen because of its meaning, and the choice of the other (the collocate) depends on the base. Collocations are difficult to master by language learners.
Carlini, Roberto   +3 more
core   +1 more source

La articulación etnográfica. Descubrimiento y trabajo de campo de la investigación de Esther Hermitte

open access: yesRevista del Museo de Antropologia, 2014
Autor: Rosana GuberTítulo: La articulación etnográfica. Descubrimiento y trabajo de campo de la investigación de Esther HermitteEditorial: Editorial Biblos2013, Buenos Aires.
M. Godoy
semanticscholar   +1 more source

A General Bipenalty Formulation for Explicit Contact‐Impact Analysis With a Parameter Selection Criterion

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 1, 15 January 2025.
ABSTRACT A general bipenalty formulation with a parameter selection criterion is proposed for explicit contact‐impact finite element analysis. In order to model the contact phenomenon using penalties, it is necessary to introduce an artificial contact stiffness that can increase the maximum natural frequency of the system.
Yun‐Jae Kwon   +3 more
wiley   +1 more source

Disease management in two sympatric Apterostigma fungus‐growing ants for controlling the parasitic fungus Escovopsis

open access: yesEcology and Evolution, 2021
Antagonistic interactions between host and parasites are often embedded in networks of interacting species, in which hosts may be attacked by competing parasites species, and parasites may infect more than one host species.
Yuliana Christopher   +5 more
doaj   +1 more source

Beyond 4 × 4: Paramotoring a novel approach to accelerate plant exploration in challenging environments

open access: yesPLANTS, PEOPLE, PLANET, Volume 7, Issue 1, Page 87-104, January 2025.
Addressing the burning environmental crisis, we explore how the ‘extreme sport’ of paramotoring can enhance and accelerate scientific exploration with minimal environmental impact compared to off‐road vehicles. Our study demonstrates the scientific potential of paramotoring to access fragile desert ecosystems and investigate unrecorded habitats and ...
Justin Moat   +13 more
wiley   +1 more source

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