Λεωνίδας Ανθόπουλος, Efrosini Kostavara, John‐Paris Pantouvakis,
... platform in the Gulf of Mexico; and the San Esteban mine collapse in Chile- and question the risk estimation and analysis methods ...
Tópico(s): Risk and Safety Analysis
2013 - Elsevier BV | Procedia - Social and Behavioral Sciences
Esteban Yefi-Quinteros, Catalina Muñoz-San Martín, Antonella Bacigalupo, Juana P. Correa, Pedro E. Cattan,
Trypanosoma cruzi is the agent of Chagas disease, a major public health problem in Latin America. Many wild and domestic animals are naturally infected with T. cruzi; rodents are one of the groups which have been consistently detected infected in different countries. The aim of this work was to characterize blood T. cruzi load in naturally infected rodents from a Chagas disease endemic region in Chile. Baited traps were set in domestic and peridomestic areas of rural dwellings. The rodents were ...
Tópico(s): Parasites and Host Interactions
2018 - BioMed Central | Parasites & Vectors
Esteban San Juan, Raúl Araya‐Donoso, Catalina Sierra-Rosales, Juana P. Correa, Nicol Quiroga, R Campos, Aldo Solari, Martin Llewellyn, Antonella Bacigalupo, Carezza Botto‐Mahan,
Triatomines are blood-sucking insects capable of transmitting Trypanosoma cruzi, the parasite that causes Chagas disease in humans. Vectorial transmission entails an infected triatomine feeding on a vertebrate host, release of triatomine infective dejections, and host infection by the entry of parasites through mucous membranes, skin abrasions, or the biting site; therefore, transmission to humans is related to the triatomine-human contact. In this cross-sectional study, we evaluated whether humans ...
Tópico(s): Parasitic Diseases Research and Treatment
2023 - BioMed Central | Parasites & Vectors
Yu Ting Joanne Khew, Marcin Pawel Jarzebski, Dyah Fatma, Ricardo San Carlos, Jianping Gu, Miguel Esteban, Rafael Aránguiz, Tomohiro Akiyama,
A GIS analysis on the urbanization spread (1725 to present) in the Greater Concepcion Region demonstrates that increasing the tsunami disaster resilience of coastal communities is a pressing issue in Chile, due to the continuous presence of human settlements in tsunami-prone areas. This research assesses the contribution of “hard-infrastructure” for increasing disaster resilience within five coastal towns (Dichato, Coliumo, Tumbes, Penco and Talcahuano). Structures were considered beneficial to resilience- ...
Tópico(s): Climate Change, Adaptation, Migration
2015 - Elsevier BV | International Journal of Disaster Risk Reduction
Elard Koch, Tomás Romero, Leopoldo Manríquez, Mario Paredes, Esteban Ortúzar, Alan Taylor, Carolinne Román, A Kirschbaum, Carlos Díaz,
Socioeconomic and educational inequities as independent predictors for mortality in a developing country.A cohort study in San Francisco, Chile
Tópico(s): Global Health Care Issues
2007 - Q16635223 | Revista médica de Chile
H. Esteban Hopp, Pedro Romero, Rafael Pont Lezica,
... cellulose biosynthesis by coumarin H.Esteban Hopp, H.Esteban Hopp Departamento de Biología, Fundación Bariloche, Casilla de Correo 138, 8400 San Carlos de Bariloche, Argentina Centro de Investigaciones en Ciencias Agronómicas, INTA, CC 25, Castelar, Argentina Search for more papers by this authorPedro A. Romero, Pedro A. Romero Departamento de Biología, Fundación Bariloche, Casilla de Correo 138, 8400 San Carlos de Bariloche, Argentina On leave from the Universidad Católica de Valparaiso, Chile. Present address: Instituto de Investigaciones Bioquímicas, Fundación Campomar, ...
Tópico(s): Plant-Microbe Interactions and Immunity
1978 - Wiley | FEBS Letters
Tópico(s): Spanish Linguistics and Language Studies
1993 - University of Chile | Revista chilena de literatura
Claudio Ernesto Esteban Tesser Obregón,
The rural area of the Santiago Metropolitan Region is a combination of natural, social, economic and technical factors that give origin to several territories. If we consider those in which water resources play a significant role in carrying out agricultural activity, several different «water territories» can be identified in the Tiltil, Valle de Mallarauco and San Pedro de Melipilla areas. In these cases the study allowed us to shed light upon and discuss several important points regarding the territorial ...
Tópico(s): Water resources management and optimization
2013 - Spanish National Research Council | Estudios Geográficos
Gastón Apablaza, Maykelis Díaz-Solares, R. San Martín, Esteban A. Moya,
In order to evaluate the antifungal activity of saponins in extracs of quillay (Quillaja saponaria MOL.), against powdery mildew (Erysiphe cichoracearum DC. Ex Merat and Sphaerotheca fuliginea (Schlecht ex Fr.) Poll.) of cucurbit crops under natural conditions, two experiments were done: one with cucumber (Cucumis sativus L.) under greenhouse conditions, and a second with squash (Cucurbita maxima Duch.) under field conditions. A split plot design with seven treatments and four replicates was used. Results ...
Tópico(s): Plant pathogens and resistance mechanisms
2002 - Pontifical Catholic University of Chile | Ciencia e investigación agraria
Nicol Quiroga, Juana P. Correa, R Campos, Esteban San Juan, Raúl Araya‐Donoso, Gabriel Díaz-Campusano, Christian R. González, Carezza Botto‐Mahan,
Mepraia parapatrica is one of the lesser known and less abundant sylvatic triatomine species naturally infected by the protozoan Trypanosoma cruzi, the etiological agent of Chagas disease. M. parapatrica lives in sympatry with T. cruzi-infected rodents, but only birds, reptiles, and marine mammals have been reported as blood-meal sources of this vector species by serology. The distribution range of this kissing bug overlaps with fishers' settlements and tourist areas, and therefore the study of ...
Tópico(s): Insect and Pesticide Research
2022 - Multidisciplinary Digital Publishing Institute | Microorganisms
Nicolás Troncoso, R. Saavedra, Alex Olivares-Molina, Jorge Esteban Salinas Farías, Sergio San Martin, Homero Urrutia, Cristian Agurto-Muñoz,
Several studies have been done in order to detect antibiotics from natural sources, seaweeds among them.With the aim of identifying antibacterial compounds, 6 species of seaweeds have been evaluated.The raw extracts were analyzed against bacteria, Gram-positive and negative, with diffusi on discs and bioautography, then, they were characterized by GC-MS.The seaweeds Gracilaria chilensis, Ulva Complex and Macrocystis pyrifera present inhibition in the bacterial growth of tested strains.Three molecules, ...
Tópico(s): Health and Medical Education
2015 - University of Valparaíso | Revista de biología marina y oceanografía
B.V. San Martin, N. Pizarro-Aránguiz, Diego García‐Mendoza, Carolina Araya-Jordán, Aldo Maddaleno, Esteban Abad, Cristóbal Galbán‐Malagón,
For the first time in South America, a four-year survey (2011–2014) was conducted to assess the occurrence of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) in different raw meats (bovine, pork, ovine, chicken, and turkey) sampled from ten of the fifteen regions of Chile. When expressed as pg World Health Organization Toxic Equivalent (WHO-TEQ2005) g−1 fat, the highest PCDD/F values for each species were 0.54 (bovine-2012), 0.27 (pork-2013), 0. ...
Tópico(s): Carcinogens and Genotoxicity Assessment
2016 - Elsevier BV | The Science of The Total Environment
... representatives were invited to thecommission, eventhough the130miners ofCampañiaMinera San Esteban Primerawere represented by a union. Convention176 clearlyspells out that workers andtheir trade unionsshallparticipate in mineinspections and accident investigations. Chile'smineunionsdo sound the alarmfrequentlyon safety infractions. But the common refrain from bothgovernment and industry has been theunion'sdutyis to negotiate economic issues,nottopartake insafety orhealthmatters. AtSanJosé,UnionNo. 2 ofCampaniaMinera San Estebanrepeatedly warnedof safety flaws and actually presented legalchallengesin ...
Tópico(s): Occupational Health and Safety Research
2011 - | International Union Rights
Manuel Almeida, Esteban San Juan,
Este articulo estudia la influencia de determinados factores sociales y linguisticos en elision de -/s/ final de palabras en una pequna poblacion perteneciente a la ciudad de La Laguna (el Lomo Largo). El analisis cuantitativo confirmo casi todas nuestras hiotesis iniciales, es decir, que la elision aparece condicionada por factores fonicos, sintacticos, semanticos y lexicos. La unica variable social estudiada, la edad, no resulto significativa.
Tópico(s): Phonetics and Phonology Research
1998 - University of Chile | Boletín de filología
Carla Ponce-Revello, Nicol Quiroga, Esteban San Juan, Juana P. Correa, Carezza Botto‐Mahan,
Several reptile species have been described as hosts of Trypanosoma cruzi, the causative agent of Chagas disease, and therefore, they have become vertebrates of epidemiological interest. In recent decades, there has been a growing interest in animal welfare, especially in populations with small numbers where lethal sampling could have catastrophic consequences, and non-lethal methodologies have been developed for detecting zoonotic parasites. In this study, we compared three non-lethal sampling ...
Tópico(s): Insect symbiosis and bacterial influences
2024 - Elsevier BV | Veterinary Parasitology Regional Studies and Reports
Antonella Bacigalupo, Catalina Muñoz-San Martín, Diego Valenzuela Caiceo, Esteban Yefi-Quinteros, Juana Paola Correa Galaz, Pedro Cattan Ayala,
Tópico(s): Trypanosoma species research and implications
2016 - Medwave Estudios Limitada | Medwave
Esteban F. Espinoza-García, Carolina Rejas-Gallegos, Andrés Horlacher-Kunstmann, Francisco M. González-Vicuña, Mario Párraga-San Román,
El glioblastoma multiforme es el subtipo de gliomas más frecuente en adultos, con una pobre sobrevida promedio posterior al diagnóstico. Sin terapia, la sobrevida de los pacientes posterior al diagnóstico no excede los 3 meses, incrementándose a un promedio de 12 a 15 meses si se aplica el tratamiento óptimo, que incluye resección quirúrgica, radioterapia y quimioterapia con temozolomida. El objetivo primario de este estudio es determinar la factibilidad de realizar el análisis biomolecular de muestras ...
Tópico(s): Molecular Biology Techniques and Applications
2019 - | Revista Chilena de Neurocirugía
Daniela Estay-Olea, Juana P. Correa, Sophie de Bona, Antonella Bacigalupo, Nicol Quiroga, Esteban San Juan, Aldo Solari, Carezza Botto‐Mahan,
Hematophagous insects exhibit complex behaviour when searching for blood-meals, responding to several host stimuli. The hematophagous insect Mepraia spinolai is a wild vector of Trypanosoma cruzi, causative agent of Chagas disease in humans, in the semiarid-Mediterranean ecosystem of Chile. In this study, we evaluated the association between the approaching behaviour to a human host, with T. cruzi infection status and nutritional condition of M. spinolai. To this end, we captured 501 individuals ...
Tópico(s): Research on Leishmaniasis Studies
2020 - Elsevier BV | Acta Tropica
Elard Koch, Tomás Romero, Leopoldo Manríquez, Mario Paredes, Esteban Ortúzar, Alan Taylor, Carolinne Román, A Kirschbaum, Carlos Díaz,
Tópico(s): Healthcare Systems and Reforms
2007 - Q16635223 | Revista médica de Chile
Carezza Botto‐Mahan, Juana P. Correa, Raúl Araya‐Donoso, Francisca Farías, Esteban San Juan, Nicol Quiroga, R Campos, Claudio Reyes‐Olivares, Daniel González‐Acuña,
Abstract We assessed 4 lizard species in Chile for Trypanosoma cruzi, the causative agent of Chagas disease, and 1 species for its ability to transmit the protozoan to uninfected kissing bugs. All lizard species were infected, and the tested species was capable of transmitting the protozoan, highlighting their role as T. cruzi reservoirs.
Tópico(s): Insect symbiosis and bacterial influences
2022 - Centers for Disease Control and Prevention | Emerging infectious diseases
Raúl Araya‐Donoso, Esteban San Juan, Ítalo Tamburrino, Madeleine Lamborot, Claudio Veloso, David Véliz,
Integration of multiple approaches is key to understand the evolutionary processes of local adaptation and speciation. Reptiles have successfully colonized desert environments, that is, extreme and arid conditions that constitute a strong selective pressure on organisms. Here, we studied genomic, physiological and morphological variations of the lizard Liolaemus fuscus to detect adaptations to the Atacama Desert. By comparing populations of L. fuscus inhabiting the Atacama Desert with populations ...
Tópico(s): Species Distribution and Climate Change
2021 - Wiley | Journal of Animal Ecology
Diego Martín Muñoz, Luis Miguel Pedrero Esteban, Juan Ramón Martín San Román,
Los deportes electrónicos o esports se han consolidado en los últimos años como uno de los productos culturales con mayor impacto a nivel global en la industria de los medios y el entretenimiento. Aunque las competiciones entre equipos profesionales surgieron como herramienta de marketing, el aumento de su popularidad las está convirtiendo en alternativa a los deportes tradicionales, sobre todo entre los públicos más jóvenes. A ello contribuye el uso de las retransmisiones paralelas a las oficiales ...
Tópico(s): Digital Marketing and Social Media
2024 - University of Chile | Comunicación y Medios
... Nicolás deHidalgo. Profesor e investigador Asociado, UniversidadMichoacana de San Nicolás de Hidalgo.Julián Estrada ÁlvarezMédico Veterinario y Zootecnista, Universidad deCaldas. Magister Producción Animal, PontificiaUniversidad Católica de Chile. Doctor en CienciasAgrarias, Universidad de Caldas. Docente Investigador,Universidad de Caldas.Leidy Patricia Quintero MoraIngeniero Biotecnológico. Universidad Francisco dePaula Santander. Estudiante de Mestrado, Universidadde São Paulo.Mauricio Esteban PintoAbogado (Universidad de Mendoza). Diplomadoen Estudios Avanzados en ...
Tópico(s): Environmental and Ecological Studies
2016 - | Ingeniería y Región
Esteban San Juan, Raúl Araya‐Donoso, David Véliz, Nicol Quiroga, Carezza Botto‐Mahan,
Abstract The centre–periphery hypothesis (CPH) postulates that populations close to the centre of a species distribution will exhibit higher genetic diversity and lower genetic differentiation than populations located at the edge of the distribution. The centre of a species’ distribution might represent an optimum for the environmental factors influencing the species absolute fitness and, therefore, genetic diversity. In species with wide distribution, the geographical variation of biotic and abiotic ...
Tópico(s): Research on scale insects
2021 - Wiley | Molecular Ecology
M. Cecilia Poli, Boris Rebolledo‐Jaramillo, Catalina Lagos, Joan Orellana, Gabriela Moreno, Luz M. Martín, Gonzalo Encina, Daniela Böhme, Víctor Faùndes, María Zavala, Trinidad Hasbún, Sara Fischer, Florencia Brito, Diego Araya, Manuel Lira, Javiera de la Cruz, Camila Astudillo, Guillermo Lay‐Son, Carolina Cares, Mariana Aracena, Esteban San Martin, Zeynep Coban–Akdemir, Jennifer E. Posey, James R. Lupski, Gabriela M. Repetto,
Rare diseases affect millions of people worldwide, and most have a genetic etiology. The incorporation of next-generation sequencing into clinical settings, particularly exome and genome sequencing, has resulted in an unprecedented improvement in diagnosis and discovery in the past decade. Nevertheless, these tools are unavailable in many countries, increasing health care gaps between high- and low-and-middle-income countries and prolonging the "diagnostic odyssey" for patients. To advance genomic ...
Tópico(s): Genetic factors in colorectal cancer
2024 - Springer Nature | European Journal of Human Genetics
Víctor Faùndes, Rosa Pardo, Francisco Cammarata‐Scalisi, Pablo Alarcón, Guillermo Lay‐Son, Esteban San Martín,
En el marco de la campaña de vacunación contra el virus SARS-CoV-2, el Ministerio de Salud de Chile solicitó asesoría a la de Rama de Genética de la Sociedad Chilena de Pediatría, para definir el nivel de priorización para pacientes con Síndrome de Down. Un panel de Genetistas trabajó en el desarrollo de este consenso, en el cual se incluyeron no solo los pacientes con Síndrome de Down, sino que se amplió la búsqueda a pacientes con otros tipos de discapacidades, en edades tanto pediátricas como ...
Tópico(s): Chronic Disease Management Strategies
2021 - Sociedad Chilena de Pediatría | Andes pediatrica
Rodrigo Esteban Morales Martínez, Carolina Beatriz Besoain Arrau, Alejandro Soto Morales, Laís Pinto de Carvalho, Karla Dominique Hidalgo Pino, Ismael Fernández Posada, Vicente Bernal Santibáñez,
Este artículo expondrá los principales resultados de una investigación cuyo objetivo fue explorar la experiencia que algunos pobladores han desarrollado en relación con la política habitacional chilena. Siguiendo la pista a hallazgos anteriores, se discutirá los procesos de subjetivación de pobladores/as que, habiendo recibido la vivienda social entre las décadas de 1980 y 2000, decidieron regresar al campamento. Desde lógicas de la investigación social cualitativa y del método etnográfico, se realizaron ...
Tópico(s): Social Issues and Sustainability
2017 - University of Chile | Revista INVI
María Elízabeth Guerra Zúñiga, Jose A. Gonzalez, Ximena Ferrada,
... primera vez el vector en Los Andes y San Esteban activando las alarmas. La participación ciudadana es un ...
Tópico(s): Community Health and Development
2024 - Medwave Estudios Limitada | Medwave
Catalina Sierra-Rosales, Esteban San Juan, Nicol Quiroga, Raúl Araya‐Donoso, Juana P. Correa, Aldo Solari, Antonella Bacigalupo, Carezza Botto‐Mahan,
The proximity between infectious disease vector populations and human settlements, and the infection prevalence of vector populations can determine the rate of encounters between vectors and humans and hence infection risk. The diet of sylvatic triatomine vectors (kissing bugs) provides evidence about the host species involved in the maintenance of the protozoan Trypanosoma cruzi, the etiological agent of Chagas disease. Here, we characterized the diet of the Chilean endemic triatomine Mepraia spinolai ...
Tópico(s): Helminth infection and control
2023 - Elsevier BV | Acta Tropica
... by developments like the mining company (Empresa Minera San Esteban) declaring bankruptcy and the Chilean government taking over ...
Tópico(s): Environmental law and policy
2012 - Mid-Atlantic Council of Latin American Studies | Middle Atlantic Review of Latin American Studies