Listar INVESTIGACIÓN por autor "Elsevier"
Mostrando ítems 21-40 de 56
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Evolving in thin air - Lessons from the llama fetus in the altiplano
Riquelme, Raquel A [Universidad de Chile]; Herrera, Emilio A. [Universidad de Chile]; Ebensperger, Germán [Universidad de Chile]; Behn, Claus [Chile. Universidad Mayor. Facultad de Medicina] (CIENCIAS, 2007)Compared with lowland species, fetal life for mammalian species whose mothers live in high altitude is demanding. For instance, fetal llamas have to cope with the low fetal arterial PO2 of all species, but also the likely ... -
Factores facilitadores y obstaculizadores para la investigación de enfermeras clínicas en Santiago de Chile
López Hermann, Gloria [Universidad Mayor, Chile]; Araya Novoa, Mabel [Universidad Mayor, Chile]; Infante Peñafiel, Alicia [Universidad Mayor, Chile]; Demandes Wolf, Ingrid [Universidad Mayor, Chile] (Chile. Universidad Mayor, 2018)Introducción La investigación científica en enfermería aporta al conocimiento que sustenta el quehacer profesional y la autonomía de la profesión, mejora la calidad de atención en la gestión del cuidado del paciente. La ... -
Gene expression and chromosomal location for susceptibility to Sjogren's syndrome
Anaya, Juan-Manuel [Colombia.Universidad del Rosario]; Aguilera, Sergio [Chile. Universidad Andrés Bello]; Úrzua, Ulises [Universidad de Chile]; Munroe, David [Estados Unidos. National Institutes of Health NIH]; Molina, Claudio [Chile. Universidad Mayor] (CIENCIAS, 2009)Primary Sjögren's syndrome (SS) is a chronic inflammatory autoimmune disease affecting mainly the exocrine glands. Its physio-pathology is poorly understood and most of the knowledge has been related to the inflammatory ... -
Giant mandibular bone defect: Report of a case
Sindermann, D. B [Chile. Universidad Mayor]; Rondanelli, B. M. [Chile. Universidad Mayor] (CIENCIAS, 2006)In 1942 Edward Stafne1 described a series of 35 cases of asymptomatic radiolucent bone cavities next to the mandibular angle. The cavities seemed to be spheric.PERIHUEICO or elliptic monolocular radiolucencies, well defined, ... -
Head-to-head comparison of the Montreal nomogram with the detection of primary malignant circulating prostate cells to predict prostate cancer at initial biopsy in Chilean men with suspicion of prostate cancer
Murray, Nigel P. [Chile. Universidad Mayor. Facultad de Medicina]; Reyes, Eduardo [Chile. Hospital DIPRECA]; Fuentealba, Chyntia [Hospital de Carabineros de Chile]; Orellana, Nelson [Chile. Hospital DIPRECA]; Jacob, Omar [Hospital de Carabineros de Chile]; Badilla, Sebastián [Chile. Hospital DIPRECA] (Facultad de Ciencias, 2015)INTRODUCTION: The limitations of total serum prostate-specific antigen (PSA) level values remain problematic. Nomograms may improve the predictive value of a positive prostate biopsy (PB) finding. We compare in a prospective ... -
Humic acids as molecular assemblers in the surface-enhanced Raman scattering detection of polycyclic aromatic hydrocarbons
Cordova, I. [México. Instituto Politécnico Nacional]; Lizama-Vergara, P. A. [Chile. Universidad Mayor. Facultad de Medicina]; Gómez-Jeria, J. S. [Universidad de Chile] (CIENCIAS, 2008)A humic acid (HA) extracted from lignite was successfully used in surface-enhanced Raman scattering SERS experiments as molecular occlusion assembler deposited onto a Ag colloidal surface to detect the polycyclic aromatic ... -
Hypoxia-related lipid peroxidation: Evidences, implications and approaches
Araneda, Oscar F. [Chile. Universidad Mayor. Facultad de Medicina]; Llanos, Aníbal J. [Universidad de Chile]; Celedón, Gloria [Chile. Universidad de Valparaíso] (CIENCIAS, 2007)Hypoxia may be intensified by concurrent oxidative stress. Lack of oxygen in relation to aerobic ATP requirements, as hypoxia has been defined, goes along with an increased generation of reactive oxygen species (ROS). ... -
Identification of rare protein disulfide isomerase gene variants in amyotrophic lateral sclerosis patients.
Gonzalez-Perez, Paloma [University of Massachusetts]; Woehlbier, Ute [Chile. Universidad Mayor]; Chian, Ru-Ju [Universidad de Chile]; Sapp, Peter [University of Massachusetts]; Rouleau, Guy A. [Montreal Neurological Institute and Hospital]; Leblond, Claire S. [Montreal Neurological Institute and Hospital]; Daoud, Hussein [Montreal Neurological Institute and Hospital]; Dion, Patrick A. [Montreal Neurological Institute and Hospital]; Landers, John E. [University of Massachusetts]; Hetz, Claudio [Universidad de Chile]; Brown, Robert H. [Universidad de Chile] (Facultad de Ciencias, 2015)Disruption of endoplasmic reticulum (ER) proteostasis is a salient feature of amyotrophic lateral sclerosis (ALS). Upregulation of ER foldases of the protein disulfide isomerase (PDI) family has been reported in ALS mouse ... -
Indoor postmortem mutilation by dogs: Confusion, contradictions, and needs from the perspective of the forensic veterinarian medicine
Pisani, Julian M. A [Argentina.Presidency Argentine Nation, Minist Justice & Human Rights, Natl Forens Sci Programme, Cordoba]; Scarso-Giaconi, Fabiana [Chile. Universidad Mayor]; Fonseca, Gabriel M. [Chile. Universidad de La Frontera, Temuco] (CIENCIAS, 2016)Canine scavenging in indoor settings is rarely reported but is regularly observed in forensic practice. Such scavenging can cause misinterpretation when specific expert witnesses are not called. Forensic investigators must ... -
Injury to the nervous system: A look into the ER
Oñate, Maritza [Chile. Universidad Mayor]; Hetz, Claudio [Universidad de Chile]; Court, Felipe A [Chile. Universidad Mayor] (CIENCIAS, 2016)Injury to the central or peripheral nervous systems leads to the loss of cognitive and/or sensorimotor capabilities that still lack an effective treatment. Although injury to the nervous system involves multiple and complex ... -
Intranasal vaccination in mice with an attenuated Salmonella enterica Serovar 908htr A expressing Cp15 of Cryptosporidium: Impact of malnutrition with preservation of cytokine secretion
Roche, James K. [University of Virginia]; Rojo, Ana Lara [University of Virginia]; Costa, Lourrany B. [University of Virginia]; Smeltz, Ronald [Virginia Commonwealth University. Center for the study of Biological Complexity]; Manque, Patricio [Chile. Universidad Mayor. Centro de Genómica y Bioinformática]; Woehlbier, Ute [Virginia Commonwealth University. Center for the study of Biological Complexity]; Bartelt, Luther [University of Virginia]; Galen, James [University of Maryland. Center for Vaccine Development]; Buck, Gregory [University of Virginia]; Guerranta, Richard L. [University of Virginia] (Facultad de Ciencias, 2013)Cryptosporidium is a protozoan parasite associated with acute and persistent diarrhea that, even in asymptomatic persons, can impair normal growth and potentially cognitive and physical development in young children. The ... -
Latitudinal patterns in the diet of Andean condor (Vultur gryphus) in Chile: Contrasting environments influencing feeding behavior
Duclos, Melanie; Sabat, Pablo; Newsome, Seth D.; Pávez, Eduardo F.; Jaksic, Fabian M.; Quirici, Verónica; Galbán-Malagón, Cristóbal [Univ Mayor, Genom Ecol & Medio Ambiente, Ctr GEMA, Chile] (Chile. Universidad Mayor, 2020)Human-dominated environments alter the availability and quality of resources for many species, especially for scavengers that have large home ranges and plastic foraging behaviors that enable them to exploit novel resources. ... -
Life without Food and the Implications for Neurodegeneration
Calixto, Andrea [Chile. Universidad Mayor. Facultad de Ciencias. Centro de Genómica y Bioinformática] (CIENCIAS, 2015)Food availability determines developmental rate, behavior, and survival of animals. Animals that enter diapause or hibernate in response to lack of food have a double advantage: they are able to adapt to environmental and ... -
Limited improvement of incorporating primary circulating prostate cells with the CAPRA score to predict biochemical failure-free outcome of radical prostatectomy for prostate cancer
Aedo, Socrates [Chile. Universidad Finis Terrae]; Fuentealba, Cynthia [Chile. Hospital de Carabineros]; Orellana, Sebastián [Chile. Universidad Mayor. Facultad de Medicina] (CIENCIAS, 2016)OBJECTIVE: To establish a prediction model for early biochemical failure based on the Cancer of the Prostate Risk Assessment (CAPRA) score, the presence or absence of primary circulating prostate cells (CPC) and the number ... -
Mechanotransduction and epigenetic control in autoimmune diseases
Aguilera, Sergio [Chile. Clínica INDISA]; Úrzua, Ulises [Universidad de Chile]; Quest, Andrew F.G [Universidad de Chile]; Molina,Claudio [Chile. Universidad Mayor]; Alliende, Cecilia [Universidad de Chile]; Hermoso,Marcela [Universidad de Chile] (CIENCIAS, 2011)Differentiation of epithelial cells is required to define tissue architecture and appropriate function of these cells is associated with a specific pattern of gene expression. DNA methylation, post-translational modification ... -
Minimum intravenous thrombolysis utilization rates in acute ischemic stroke to achieve population effects on disability: A discrete-event simulation model
Lavados, Pablo M. [Chile.Universidad del Desarrollo]; Mar, Javier [España. Hospital Alto Deba. Unidad de Manejo Clínico]; Comas, Merce [España. Hospital del Mar. Instituto de Investigaciones Medicas] (CIENCIAS, 2016)Background: The only pharmacological treatment with proven cost-effectiveness in reducing acute ischemic stroke (AIS) associated disability is intravenous thrombolysis with recombinant tissue plasminogen activator but it's ... -
Modulación de la actividad de la corteza prefrontal como mecanismo putativo del cambio en psicoterapia
Silva C., Jaime [Chile. Universidad Mayor] (CIENCIAS, 2005)The prefrontal cortex (PFC) it is defined as the cortical cerebral region reciprocally connected with dorsolateral nucleus of thalamus. Traditional accounts derived from behavioral sciences had ascribed to the PFC a key ... -
Molecular detection of vector-borne pathogens in wild and domestic carnivores and their ticks at the human-wildlife interface
Proboste, Tatiana [Chile.Universidad Mayor,Facultad de Ciencias Silvoagropecuarias]; Fernández de Mera, Isabel G. [España. Consejo Superior de Investigaciones Científicas] (CIENCIAS, 2016)Urbanization of natural areas is considered one of the causes of the current apparent emergence of infectious diseases. Carnivores are among the species that adapt well to urban and periurban environments, facilitating ... -
Multi Locus Sequence Typing scheme for Acidithiobacillus caldus strain evaluation and differentiation
Loyola, David [ Natl Centro Gen Prote & Bioinformat Chile, Santiago]; Cardenas, Juan Pablo [Chile.Universidad Andres Bello]; Holmes, David S. [Chile. Universidad Mayor]; Johnson, D. Barrie [Bangor University]; Quatrini R. [s.af] (CIENCIAS, 2014)Phenotypic, metabolic and genetic properties of several Acidithiobacillus caldus strains indicate the existence of as yet undefined levels of variation within the species. Inspite of this, intraspecies genetic diversity ... -
New 3He neutron monitor for Chilean Cosmic-Ray Observatories from the Altiplanic zone to the Antarctic zone
Cordaro, EG [Universidad de Chile. Observatorios de Radiación Cósmica]; Olivares, E. [Chile. Universidad Mayor. Escuela de Ingeniería Electrónica]; Gálvez, D. [Universidad de Chile. Observatorios de Radiación Cósmica]; Salazar-Aravena, D. [Universidad de Santiago de Chile]; Laroze, D. [Alemania. Max Planck Institute for Polymer Research] (Facultad de Ciencias, 2012)We present the results of three years of continuous operations and the principal characteristics of our new 3He neutron monitors installed in the Chilean Network of Cosmic-Ray Observatories. During the years 2004 and 2005, ...