Results 21 to 30 of about 23,478 (153)

Les dessins de Nazca et de Tarapacá, désert péruviano-chilien [PDF]

open access: yes, 1989
Au moyen de photographies, l'auteur illustre un des mystères du désert péruviano ...
Jean-Pierre BERGOEING
core   +1 more source

The War of the Pacific and Chilean public revenues: Reallocation of the tax burden and institutional change

open access: yesThe Economic History Review, EarlyView.
Abstract A substantial body of literature has considered warfare a fundamental driver of fiscal capacity. We argue that the nature of the tax base available to governments can either foster or constrain the ability and incentives of central elites to impose their legitimacy once the war is over.
Oriol Sabaté, José Peres‐Cajías
wiley   +1 more source

Estrategias de afrontamiento en adolescentes

open access: yesFractal: Revista de Psicologia, 2010
Este estudio tuvo como objetivo describir y analizar las estrategias de afrontamiento que presentan los adolescentes escolarizados. La muestra total estuvo conformada por 323 adolecentes, estudiantes (184 hombres y 139 mujeres) de Octavo Básico a Cuarto ...
Constanza Veloso-Besio   +4 more
doaj   +1 more source

New records and range extension of some mosses in tropical areas of Chile [PDF]

open access: yes, 2003
A total of thirteen mosses are reported as new for Chile: Aloinella andina Delgad., Coscinodontella bryanii R.S. Williams, Didymodon acutus (Brid.) K. Saito, Erythrophyllopsis fuscula (Müll. Hal.) Hilp., Fissidens excurrentinervis R.S.
Cano, María J.
core  

Effect of Green Hydrogen Enrichment and Carbon Nanotubes Introduced Biodiesel–Diesel Blend on the Behavior of the Diesel Engine Modified to Operate on a Dual‐Fuel Mode

open access: yesEnergy Science &Engineering, Volume 13, Issue 11, Page 5587-5604, November 2025.
ABSTRACT The influence of n‐heptane mixed with jatropha oil methyl ester (JOME)–diesel with different metal oxide additions, such as aluminum oxide (Al2O3), titanium dioxide (TiO2), and carbon‐based nanoparticles (NPs) including multiwalled carbon nanotubes (MWCNTs) at a quantity of 60 mg/L, and enrichment of hydrogen (H2) at a quantity of 6 lpm are ...
Shabana Shabana   +9 more
wiley   +1 more source

Una crítica a los paradigmas modernizantes y reproductivista en la investigación educativa de los aymaras de Tarapacá

open access: yesEstudios Atacameños, 1997
Este artículo analiza críticamente a las teorías modernizantes y reproductivistas en la investigación en educación, especialmente el dualismo que ambas proponen para entender la realidad. Por lo tanto, se discute la eficacia explicativa de estas teorías
Sergio Alberto González Miranda
doaj   +1 more source

Prehistoric psychotropic consumption in Andean Chilean mummies [PDF]

open access: yes, 2007
Hallucinogenic plants are often regarded as the main source of psychoactive drugs in antiquity to reach deep altered states of consciousness^1,2^. Many researchers believe this was particularly true during the Tiwanaku empire expansion, circa (500-1000 A.
Bernardo T. Arriaza   +2 more
core   +1 more source

Ultra‐Processed Foods and Markers of Systemic Inflammation in Children

open access: yesFood Science &Nutrition, Volume 13, Issue 9, September 2025.
Illustration showing the association between ultra‐processed foods intake and systemic inflammation, measured with cytokines levels in children. ABSTRACT Diets high in ultra‐processed foods (UPF) have been associated with negative health outcomes in adults; however, UPF's impact on children's health and their underlying mechanisms remain underexplored,
Camila Awad   +8 more
wiley   +1 more source

Estilo de liderazgo pasivo-evitador e intercambio de comportamientos líder-seguidor en estudiantes universitarios: una aproximación desde Chile

open access: yesHallazgos, 2020
En este artículo se analiza el efecto que tiene el estilo de liderazgo pasivo-evitador en el intercambio de comportamientos líder-seguidor en estudiantes universitarios, además del efecto de la naturaleza del equipo en esta relación.
Giuliani Coluccio Piñones   +3 more
doaj   +1 more source

Siphoninus finitimus (Hemiptera: Aleyrodidae), "olive whitefly" in Arica-Chile [PDF]

open access: yes, 2014
Se ent regan antecedentes sobr e las diferencias morfométricas en distintas estructuras de adultos y del pupoide de las poblaciones de aleyródidos asociados a olivo, peral y granado en la región de Arica- Parinacota, Chile. Las significativas diferencias
Bobadilla Guzman, Dante   +3 more
core  

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