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The purpose of this study was to carry out a bibliometric analysis of the articles published in Chile during 1987-2006 that were categorized into the Plant Science discipline by ISI. The data was extracted from the Web of Science datábase, obtaining a total of 911 articles for analysis. Almost ha...


Krauskopf, Erwin[Plant Science research productivity in Chile during the past 20 years]Plant Science research productivity in Chile during the past 20 years

Although alcohol is known to be a carcinogen for humans, ethanol-genotoxicity studies are incomplete. Ethanol seems not to be a bacterial mutagen, but the results are conflicting in rodent assays. We investigate the genotoxicity in the bone marrow micronucleus (MN) test and in the dominant lethal...


Ellahueñe, ManuelPerez-Alzola, PatriciaOlmedo, María Isabel[Chronic ethanol consumption in mice does not induce DNA damage in somatic or germ cells, evaluated by the bone marrow micronucleous assay and the dominant lethal mutation assay]Chronic ethanol consumption in mice does not induce DNA damage in somatic or germ cells, evaluated by the bone marrow micronucleous assay and the dominant lethal mutation assay

La conformación del círculo arterial cerebral tiene relevancia en la clínica neuroquirúrgica por la relación compleja que presentan las arterias que lo originan y su gran variabilidad. Debido a la alta frecuencia con que se observan aneurismas en las arteria comunicante anterior y en el segmento ...

SUMMARY: The conformation of the cerebral arterial circle has relevance in the clinical neurosurgery for the complex relate that present the arteries that originate it and its great variability. Due to the high frequency with that aneurysms are observed in the anterior communicant artery and the ...


Mandiola, EduardoAlarcón, Eduardodel Sol, MarianoOlave, EnriqueMontero, C.Sanhueza, P.Oñate, Juan Carlos[Biometrical Analysis of the Anterior Communicating Artery and the Anterior Cerebral Artery in the Precommunicating Segment of the Cerebral Arterial Circle][Análisis Biométrico de las Arterias Comunicante Anterior y Cerebral Anterior en el Segmento Precomunicante del Círculo Arterial Cerebral]Análisis Biométrico de las Arterias Comunicante Anterior y Cerebral Anterior en el Segmento Precomunicante del Círculo Arterial Cerebral

Embora um crescente corpo de literatura corrobore o papel benéfico do exercício sobre a cognição, não há consenso sobre os mecanismos que norteiam as adaptações cerebrais agudas e crônicas ao exercício. A presente revisão narrativa tem como objetivo apresentar e discutir os mecanismos pelos quais...

Although a growing body of literature has supported the beneficial role of exercise on cognition, there is no consensus on the mechanisms underlying acute and chronic cerebral adaptations to exercise. The present review aims to present and discuss the mechanisms by which exercise affects cognitiv...

Aunque un creciente cuerpo de literatura corrobore el papel benéfico del ejercicio sobre la cognición, no hay consenso sobre los mecanismos que nortean las adaptaciones cerebrales agudas y crónicas al ejercicio. La presente revisión narrativa tiene como objetivo presentar y discutir los mecanismo...


Merege Filho, Carlos Alberto AbujabraAlves, Christiano Robles RodriguesSepúlveda, Carlos AndrésCosta, André dos SantosLancha Junior, Antônio HerbertGualano, Bruno[Influence of physical exercise on cognition: an update on physiological mechanisms, Influencia del ejercicio físico en la cognición: una actualización sobre mecanismos fisiológicos][Influência do exercício físico na cognição: uma atualização sobre mecanismos fisiológicos]Influência do exercício físico na cognição: uma atualização sobre mecanismos fisiológicos

Mycobacterium tuberculosis, the etiological agent of human tuberculosis, causes annually three million deaths and latently infects about two billion people. Immunodeficiency caused by malnutrition, senescence or co-infection with HIVenhances the risk of developing active tuberculosis, either from...


Maulén, Nancy P.[Virulence factors of Mycobacterium tuberculosis][Factores de virulencia de Mycobacterium tuberculosis]Factores de virulencia de Mycobacterium tuberculosis

Acid mine drainage (AMD), associated with active and abandoned mining sites, is a habitat for acidophilic microorganisms that gain energy from the oxidation of reduced sulfur compounds and ferrous iron and that thrive at pH below 4. Members of the recently proposed genus "Ferrovurn" are the first...


Ullrich, Sophie R.González, CarolinaPoehlein, AnjaTischler, Judith S.Daniel, RolfSchlömann, MichaelHolmes, David S.Mühling, Martin[Gene Loss and Horizontal Gene Transfer Contributed to the Genome Evolution of the Extreme Acidophile “Ferrovum”]Gene Loss and Horizontal Gene Transfer Contributed to the Genome Evolution of the Extreme Acidophile “Ferrovum”

Introducción: Por consenso, la infección asociada a Clostridium difficile (IACD) grave es aquella que resulta en hospitalización en unidad de cuidados intensivos, colectomía o muerte dentro de 30 días. Múltiples índices pronósticos (IP) intentan predecir estos eventos adversos. Objetivo: evaluar ...

Introduction: By consensus severe, Clostridium difficile-associated infection (CDAI) is one that results in hospitalization in ICU, colectomy or death within 30 days. Multiple prognostic indices (IP) attempt to predict these adverse events. Objective: To evaluate the performance of 4 PI in predic...


Hernández-Rocha, CristianTejos Sufan, RodrigoPlaza-Garrido, ÁngelaBarra-Carrasco, JonathanAgüero Luengo, CarlosInostroza Levy, GonzaloIbáñez Lazo, PatricioGuzmán-Durán, Ana M.Paredes-Sabja, DanielMolina Pezoa, M. ElenaÁlvarez-Lobos, Manuel[Performance of prognostic index in severe Clostridium difficile-associated infection. Retrospective analysis in a university hospital][Rendimiento de índices pronósticos en infección asociada a Clostridium difficile grave. Análisis retrospectivo en un hospital universitario]Rendimiento de índices pronósticos en infección asociada a Clostridium difficile grave. Análisis retrospectivo en un hospital universitario

The mussel Aulacomya ater was exposed to 17β-estradiol (E2) (0, 1, 100 µg L-1) for 21 days with 4 sampling periods to evaluate how these organisms deal with exogenous estrogenic compounds. In addition, 2 concentrations of 17β-estradiol (0.5, 1 mmol) were injected into the abductor muscle of 5 ind...

El mejillón Aulacomya ater fue expuesto a diferentes concentraciones de 17β-estradiol (E2) (0, 1, 100 µg L-1) por 21 días y durante 4 periodos de muestreo, con el objeto de evaluar como reaccionan estos organismos ante la exposición a compuestos estrogénicos externos. Además, se inyectaron 2 conc...


Saavedra, LuisaLeonardi, MaritzaMorin, VioletaQuiñones, Renato A.[Inducción de lipoproteínas tipo vitelogenina en el mejillón Aulacomya ater expuesto a 17β-estradiol][Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol]Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol

Sphagnum species, primarily Sphagnum magellanicum Brid., are used internationally as a substrate for horticulture. Market demands have promoted indiscriminate exploitation leading to a number of potentially negative ecological and social consequences, including disruption of Sphagnum ecosystems, ...

Especies de Sphagnum, principalmente Sphagnum magellanicum Brid., se utilizan internacionalmente como sustrato para horticultura. La creciente demanda del mercado ha promovido una explotación indiscriminada, lo que podría traer consecuencias ecológicas y sociales negativas, producto del deterioro...


Diaz, MaríaSilva, Wladimir[Mejoramiento de Técnicas de Cosecha para asegurar la Regeneración de Sphagnum en Turberas de Chile][Improving Harvesting Techniques to Ensure Sphagnum Regeneration in Chilean Peatlands]Improving Harvesting Techniques to Ensure Sphagnum Regeneration in Chilean Peatlands

Pouteria splendens (A.DC.) Kuntze (lúcumo silvestre, palo colorado) es un arbusto endémico con problemas de conservación de Chile central. Es la única especie representante de la familia Sapotaceae en el país y se conoce muy poco de su ciclo de vida. Se estudió su fenología reproductiva durante l...

Pouteria splendens (A.DC.) Kuntze (lúcumo silvestre, palo colorado) is an endemic and in dangered tree from Central Chile. It's the only member of the Sapotaceae family in the country and little is known about his life cycle. We studied the reproductive phenology during Spring and Summer, from Se...


Henríquez, Carolina A.Sotes, Gastón J.Bustamante, Ramiro O.[Reproductive phenology of Pouteria splendens (Sapotaceae)][Fenología reproductiva de Pouteria splendens (Sapotaceae)]Fenología reproductiva de Pouteria splendens (Sapotaceae)

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