Listar Artículos Científicos por título
Mostrando publicaciones 1538-1557 de 3187
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Helicobacter pylori infection and lung cancer: New insights and future challenges
; ; Rojas, Armando
(2018)
Helicobacter pylori (H. pylori) is the causative agent of chronic gastritis and peptic ulcer diseases and is an important risk factor for the development functional dyspepsia, peptic ulceration, gastric adenocarcinoma and ...
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Hemoglobin concentration and resilience of professional soccer players residing at sea level and moderate altitude regions
(2015)This study compared the hemoglobin (Hb) concentration and resilience of professional soccer players residing at sea level and moderate altitude regions. Subjects included 42 players (22 of the region at sea level and 20 ...
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Hepatectomía en 2 tiempos con técnica de ALPPS (asociación de bipartición hepática con ligadura portal para hepatectomía en 2 tiempos). Experiencia y resultados iniciales del Hospital Regional de Talca
(2018)Introduction: Postoperative liver failure (POLF) is a relevant cause of morbimortality after liver surgery. An insufficient future liver remnant (FLR) is one of the main causes of POLF. The association of hepatic bipartition ...
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Hermitean (semi) lattices and Rolf ’s lattice
(2011)We investigate the indexed Hermitean lattice of type 0 generated by a single element a subject to the relation a = a⊥⊥ ≤ b = b⊥⊥. Although the lattice is infinite, we are able to recursively describe its subdirectly ...
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Hernán Rivera Letelier: La pampa salitrera como paradigma poscolonial de la identidad chilena
(2017)El presente artículo propone una breve reflexión crítica de los conceptos subalternidad y poscolonialidad, aplicados sobre la llamada literatura de la pampa chilena, misma que debe ser entendida a partir de un imaginario ...
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Heterogeneidad en el impacto del COVID-19 sobre las ventas de microempresas en Chile a nivel municipal
(2023)La pandemia por Covid-19 generó consecuencias enormes en la economía mundial. Durante 2020, Chile fue un país enormemente afectado por el número de contagios con una evolución desfavorable de la pandemia a nivel nacional. ...
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Heterogeneidad en el involucramiento en acoso escolar: Un análisis de clases latentes
; Méndez-Bustos, Pablo (2021)
El presente estudio tuvo como objetivo desarrollar una tipología de acoso escolar a través de una técnica estadística que minimiza el error de clasificación en los grupos. Esta tipología permite examinar cómo múltiples ...
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Heterogeneous genetic structure in a natural population of Raulí (Nothofagus nervosa)
(2011)Es común encontrar deficiencias de heterocigotos en poblaciones naturales de especies forestales alógamas, lo cual se explicaría por un aumento del nivel de consanguinidad. Se ha postulado que la consanguinidad es causada ...
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Heterosis for resistance to insect herbivores in a 3-line hybrid rice system
(2024)Three-line hybrid rice is produced by crossing male sterile (A line) rice with a fertility-restorer (R line). Fertile lines (B lines) are also required to maintain A line seed for breeding programs. We used a range of ...
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Heuristic parametrization of anisotropic diffusion filtering
; ; ; Barrientos, Ricardo; Mora, Marco ; ; (2019)
The methods of evolutionary computation allow to set optimal values in a space of solutions from a candidate set. In this work, we have used evolutionary methods, for optimal parameters setting of the anisotropic diffusion ...
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Hibridación cultural: aperturas y clausuras epistémicas desde la teoría del pensamiento complejo
(2019)El presente trabajo reflexiona en torno a la posibilidad de apertura desde la teoría de la complejidad (Morín), hacia las perspectivas socio-culturales relacionadas con las Culturas híbridas esbozadas por Néstor García-Canclini, ...
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La hibridez de lo necesario a posteriori
Miranda-Rojas, Rafael (2020)
El presente escrito propone que lo necesario a posteriori corresponde a un caso híbrido de justificación, sin que ello conduzca a un compromiso racionalista extremo. En los casos de enunciados necesarios a posteriori, los ...
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High arsenic tolerance in Brevundimonas aurantiaca PFAB1 from an arsenic-rich Indian hot spring
(2021)Background: Arsenic contamination in the ground water of rural India is a recurrent problem and decontamination is mostly based on the chemical or physical treatments until now. Microbial bioremediation is eco-friendly, ...
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High burden of intestinal colonization with antimicrobial-resistant bacteria in Chile: an antibiotic resistance in communities and hospitals (ARCH) study
(2023)Background Antimicrobial resistance is a global threat, heavily impacting low- and middle-income countries. This study estimated antimicrobial-resistant gram-negative bacteria (GNB) fecal colonization prevalence in ...
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High fasting glycemia predicts impairment of cardiac autonomic control in adults with type 2 diabetes: a case-control study
(2021)Introduction: Type 2 diabetes (T2D) is characterized by a metabolic disorder that elevates blood glucose concentration. Chronic hyperglycemia has been associated with several complications in patients with T2D, one of which ...
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High school failure. A systematic review in the social sciences
; Precht Gandarillas, Andrea; (2021)
Introduction. This study aims to examine the issue of high school failure in social sciences through a systematic review. It aims to provide a critical assessment of research on this subject. It seeks to question the very ...
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High-fat diet induces mouse liver steatosis with a concomitant decline in energy metabolism: attenuation by eicosapentaenoic acid (EPA) or hydroxytyrosol (HT) supplementation and the additive effects upon EPA and HT co-administration
(2019)High-fat-diet (HFD) feeding is associated with liver oxidative stress (OS), n-3 long-chain polyunsaturated fatty acid (n-3 LCPUFA) depletion, hepatic steatosis and mitochondrial dysfunction. Our hypothesis is that the ...
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High-performance micropropagation of dendroenergetic poplar hybrids in photomixotrophic temporary immersion bioreactors (TIBs)
; Poblete, Mauricio; ; (2017)
By the first time an efficient methodology for micropropagation of poplar hybrids by temporary immersion in liquid medium was developed under photomixotrophic conditions. Influence of factors, such as plant regulator/balance ...
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Higher-order approximation to the guidewire model used in simulators of cardiac catheterization and multiple segment relaxations
(2018)Cardiac catheterism is important because it offers many advantages in comparison to open surgery, for example, fewer injuries, lower risk of infections, and shorter recovery times. Simulators play a fundamental role in ...