Results 31 to 40 of about 560,071 (302)

No te quiebres ni te dobles. Apropiación y utilización del hierro en las waiki o lanzas entre los reche-mapuche

open access: yesMemoria Americana, 2023
Desde el inicio de la invasión europea de los territorios de la Araucanía, las fuentes históricas dan cuenta de la avidez de los nativos por apropiarse de objetos de hierro.
Joaquín García Insausti
doaj   +1 more source

Artificial Intelligence Models for Dysphonia Patient Education. [PDF]

open access: yesOtolaryngol Head Neck Surg
Abstract Objective Evaluate and compare artificial intelligence (AI) chatbot responses to queries extrapolated from statements by Dysphonia International (DI). Study Design Cross‐sectional analysis. Setting Online using ChatGPT, Google AI Overview (GAO), and DI.
Ho RA   +4 more
europepmc   +2 more sources

Un arma no solo de prestigio: la espada argárica de Peñalosa (Baños de la Encina, Jaén)

open access: yesTrabajos de Prehistoria, 2015
Se estudia una espada singular de la cultura argárica tanto por su tipología, estado de conservación (hoja, piezas de la empuñadura) y metal (bronce y plata) como por proceder de un contexto doméstico del poblado de la Edad del Bronce de Peñalosa (Baños ...
Auxilio Moreno Onorato   +1 more
doaj   +1 more source

Lesiones por armas de fuego desde la perspectiva médico-criminalística*

open access: yes, 2011
Dentro de las causas de muerte, los homicidios han tenido un aumento importante en los ultimos anos, siendo las lesiones por armas de fuego res-ponsables de casi de un tercio.
P. GabrielGarcía   +2 more
semanticscholar   +1 more source

The Relationship Between Interest Rates and Agricultural Commodity Price Dynamics

open access: yesAgribusiness, EarlyView.
ABSTRACT The U.S. Federal Reserve has undertaken several interest rate interventions in the past decade. This study explores the relationship between U.S. corn and soybean prices and Federal Reserve monetary policy interventions, in the short and long run.
Zhining Sun, Ani L. Katchova
wiley   +1 more source

Molecular modification of coumarin dyes for more efficient dye sensitized solar cells [PDF]

open access: yes, 2012
solo para uso personalIn this work, new coumarin based dyes for dye sensitized solar cells (DSSC) have been designed by introducing several substituent groups in different positions of the NKX-2311 structure.
Fernández Sanz, Javier   +4 more
core   +1 more source

El tráfico de armas en Colombia : una revisión desde los orígenes a los destinos.

open access: yes, 2011
Este articulo aborda el trafico de armas en Colombia en tres componentes: los origenes, las rutas y los destinos. En los origenes del trafico se consideran las regiones de donde pueden provenir las armas y los contextos que permiten la existencia de un ...
Katherine Aguirre Tobón
semanticscholar   +1 more source

Flexible Memory: Progress, Challenges, and Opportunities

open access: yesAdvanced Intelligent Discovery, EarlyView.
Flexible memory technology is crucial for flexible electronics integration. This review covers its historical evolution, evaluates rigid systems, proposes a flexible memory framework based on multiple mechanisms, stresses material design's role, presents a coupling model for performance optimization, and points out future directions.
Ruizhi Yuan   +5 more
wiley   +1 more source

Os "Combatentes da Paz" - a participação dos comunistas brasileiros na Campanha Pela Proibição das Armas Atômicas (1950)

open access: yes, 2008
O trabalho procura reconstituir a Campanha pela Proibicao das Armas Atomicas, adotada pelo PCB no ano de 1950. Seguindo a linha pacifista da Uniao Sovietica, dirigida a todos os partidos comunistas, a campanha consistia no recolhimento, pelos militantes ...
J. Ribeiro
semanticscholar   +1 more source

Heat drastically alters floral color and pigment composition without affecting flower conspicuousness

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Floral pigments primarily serve to attract pollinators through color display and also contribute to protection against environmental stress. Although pigment composition can be plastically altered under stress, its impact on pollinator color perception remains poorly understood.
Eduardo Narbona   +6 more
wiley   +1 more source

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