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Under physiological conditions, astroglial hemichannels and pannexons allow the release of gliotransmitters from astrocytes. These gliotransmitters are critical in modulating synaptic transmission, plasticity and memory. However, recent evidence suggests that under pathological conditions, they m...


Orellana, JARetamal, MAMoraga-Amaro, RStehberg, J[Role of Astroglial Hemichannels and Pannexons in Memory and Neurodegenerative Diseases]Role of Astroglial Hemichannels and Pannexons in Memory and Neurodegenerative Diseases

Introducción: El cáncer gástrico es la primera causa de muerte por cáncer, en hombres, en Chile, siendo el adenocarcinoma la variante más frecuente. Caso clínico: Reportamos el caso de un cáncer gástrico incipiente gigante de 7,2 cm en un hombre de 74 años tratado en la Clínica INDISA en Santi...


Vidal A., N.Carrasco A., G.Pérez C., A.[A case report: Giant early gastric cancer][Cáncer gástrico incipiente gigante: reporte de un caso]Cáncer gástrico incipiente gigante: reporte de un caso

In this report we present the first draft genome sequence of a P. putida strain isolated from the Antarctic continent. The shotgun sequencing strategy, assembly, and subsequent annotation showed that the ATH-43 strain possesses a wide spectrum of genetic determinants involved in heavy metal and a...


Rodriguez-Rojas, FTapia, PCastro-Nallar, EUndabarrena, AMunoz-Diaz, PArenas-Salinas, MDiaz-Vasquez, WValdes, JVasquez, C[Draft Genome Sequence of a Multi-Metal Resistant Bacterium Pseudomonas putida ATH-43 Isolated from Greenwich Island, Antarctica]Draft Genome Sequence of a Multi-Metal Resistant Bacterium Pseudomonas putida ATH-43 Isolated from Greenwich Island, Antarctica

It is proposed an analysis of the related variables with the energetic consumption in the process of concentrate of copper; specifically ball mills and SAG. The methodology considers the analysis of great volumes of data, which allows to identify the variables of interest (tonnage, temperature an...


Lagos, CCarrasco, RFuertes, GGutierrez, SSoto, IVargas, M[Big Data on Decision Making in Energetic Management of Copper Mining]Big Data on Decision Making in Energetic Management of Copper Mining

ABSTRACT In this work we present the synthesis and characterization of iron oxide nanoparticles (IONPs), which were structurally and magnetically characterized. The use of iron salts and an organic acid (l-serine or ascorbic acid) as precursors under solvothermal conditions yielded these coated ...


Paredes-García, VerónicaToledo, NéstorJuliano, DenardinVenegas-Yazigi, DiegoCruz, Carlos[One pot solvothermal synthesis of organic acid coated magnetic iron oxide nanoparticles]One pot solvothermal synthesis of organic acid coated magnetic iron oxide nanoparticles

Natural geranylhydroquinone 1 and geranyl-p-methoxyphenol 2 were prepared by Electrophilic Aromatic Substitution (EAS) reactions between geraniol and 1,4-hydroquinone or p-methoxyphenol respectively, using BF3∙Et2O as a catalyst. Furthermore, natural geranylquinone 3, geranyl-1,4-dimethoxyquinone...


Baeza, EvelynCatalan, karenPeña-Cortes, HugoEspinoza, Luis[SYNTHESIS OF GERANYLHYDROQUINONE DERIVATIVES WITH POTENCIAL CYTOTOXIC ACTIVITY]SYNTHESIS OF GERANYLHYDROQUINONE DERIVATIVES WITH POTENCIAL CYTOTOXIC ACTIVITY

Background: Body size variation has played a central role in biogeographical research, however, most studies have aimed to describe trends rather than search for underlying mechanisms. In order to provide a more comprehensive understanding of the causes of intra-specific body size variation in ec...


Valenzuela-Sánchez, ACunningham, AASoto-Azat, C[Geographic body size variation in ectotherms: effects of seasonality on an anuran from the southern temperate forest]Geographic body size variation in ectotherms: effects of seasonality on an anuran from the southern temperate forest

Deep near-IR images from the VISTA Variables in the Via Lactea (VVV) Survey were used to search for RR Lyrae stars in the Southern Galactic plane. A sizable sample of 404 RR Lyrae of type ab stars was identified across a thin slice of the fourth Galactic quadrant (295 degrees < l < 350 degrees, -...


Minniti, D.Dékány, I.Majaess, D.Palma, T.Pullen, J.Rejkuba, M.Alonso-García, J.Catelan, M.Contreras Ramos, R.Gonzalez, O.A.Hempel, M.Irwin, M.lLucas, P.W.Saito, R.K.Tissera, P.Valenti, E.Zoccali, M.[Characterization of the VVV Survey RR Lyrae Population across the Southern Galactic Plane]Characterization of the VVV Survey RR Lyrae Population across the Southern Galactic Plane

El artículo presenta una revisión de investigaciones empíricas sobre concepciones de retroalimentación de profesores en distintos niveles educativos. Para ello, se analizaron los resultados de trece estudios que fueron seleccionados entre sesenta y ocho investigaciones publicadas entre 2000 y 201...

The article presents a review of empirical research on conceptions of feedback of teachers at different levels of education. Accordingly, we analyzed the results of thirteen studies that were selected from sixty-eight research papers published between 2000 and 2015. Based on a documentary analysi...

L'article présente une révision de recherches empiriques par rapport aux conceptions de feedback de professeurs de différents niveaux éducatifs. Pour cela, on a analysé les résultats de treize études qui ont étés choisies parmi soixante-dix-huit recherches publiées entre 2000 et 2015. Au moyen d'...

O artigo apresenta uma revisão de pesquisas empíricas sobre concepções de retroalimentação de professores em diferentes níveis educativos. Para isso, se analisaram os resultados de treze estudos que foram selecionados entre sessenta e oito pesquisas publicadas entre 2000 e 2015. Mediante uma anál...


Contreras-Pérez, G.Zúñiga-González, C.G.[Teacher conceptions about feedback: A literature review, Conceptions de professeurs par rapport au feedback: une révision de la littérature, Concepcoes de professores sobre retroalimentacao: uma revissao da literatura][Concepciones de profesores sobre retroalimentación: Una revisión de la literatura]Concepciones de profesores sobre retroalimentación: Una revisión de la literatura

Eugenol (4-allyl-2-methoxyphenol) (1) has been reported to possess antioxidant and anticancer properties. In an attempt to enhance intrinsic activity of this natural compound, some derivatives were synthesized. Eugenol was extracted from cloves oil and further, the eugenol analogues (2-6) were ob...


Carrasco, H.Espinoza, L.Cardile, V.Gallardo, C.Cardona, W.Lombardo, L.Catálan, K.Cuellar, M.Russo, A.[Eugenol and its Synthetic Analogues Inhibit Cell Growth of Human Cancer Cells (Part I)]Eugenol and its Synthetic Analogues Inhibit Cell Growth of Human Cancer Cells (Part I)

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