Browsing by Title Artículos de revistas

Now showing items 1199-1218 of 2801

    • Gadolinium and neodymium citrates: Evidence for weak ferromagnetic exchange between gadolinium(III) cations 
      Baggio, Ricardo; Calvo, Rafael; Garland, María Teresa; Peña, Octavio; Perec, Mireille; Rizzi, Alberto (AMER CHEMICAL SOC, 2005-11-28)
      A new lanthanide citrate motif of general formula [Ln(Hcit)(H2O)(2)center dot H2O](n), where Ln = Gd (1) and Nd (2) and HCit(3-)= C(OH)(COO-)(CH2COO-)(2), has been synthesized hydrothermally from Ln(2)O(3) and citric acid ...
    • Gas chromatography/mass spectrometric study of non-commercial C-4-substituted 1,4-dihydropyridines and their ... 
      López Alarcón, Camilo; Squella Serrano, Juan; Núñez Vergara, Luis; Báez Guerrero, Hernán; Camargo Grandón, Rodrigo (JOHN WILEY, 2002)
      A gas chromatography/mass spectrometry (GC/MS) method for the qualitative and quantitative determination of the calcium-channel antagonists C-4-substituted 1,4-dihydropyridines, and their corresponding N-ethyl derivatives, ...
    • Gastric cancer: Nanoparticles as tools to improve treatment efficacy 
      Guerrero, Ariel R.; Oyarzún Ampuero, Felipe; Hassan, Natalia; Corvalán, Alejandro; Quest, Andrew F. G.; Kogan Bocian, Marcelo (Bentham Science, 2016)
      In recent years, advances in nanotechnology have raised the specter of developing effective agents for the treatment of high-impact diseases, like gastric cancer, which remains one of the major causes of cancer deaths ...
    • Gelatinase activitiy of matrix metalloproteinases in the cerebrospinal fluid of various patient populations 
      Valenzuela Pedevila, María Antonieta; Cartier Rovirosa, Luis; Collados, L. E.; Kettlun, Ana María; Araya, F.; Concha, C.; Flores, L.; Wolf, M. E.; Mosnaim, A. D. (P J D PUBLICATIONS LTD, 1999)
      We have studied the enzymatic gelatinolytic activity of matrix metalloproteinases (MMPs) present in cerebrospinal fluid (CSF) of samples obtained from 67 individuals, twenty-one nonneurological patients (considered controls) ...
    • Gender Classification from NIR Images by Using Quadrature Encoding Filters of the Most Relevant Features 
      Tapia, Juan E.; Pérez Flores, Claudio (Institute of Electrical and Electronics Engineers Inc., 2019)
      In the past few years, accuracy in determining gender from iris images has increased significantly, approaching levels that make novel applications of this biometric technology feasible. In this paper, we report the gender ...
    • Gene expression and chromosomal location for susceptibility to Sjögren's syndrome 
      Pérez, Paola; Anaya, Juan Manuel; Aguilera, Sergio; Urzúa Tobar, Ulises; Munroe, David; Molina, Claudio; Hermoso Ramello, Marcela; Cherry, James Michael; Alliende, Cecilia; Olea, Nancy; Ruiz-Narváez, Edward; González Burgos, María Julieta (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 ...
    • Generation of process-induced toxicants 
      Gloria M.B.A., Masson L., Amaya-Farfan J., Rodriguez-Amaya D.B. (Elsevier, 2020)
    • Generation of superoxide radicals by copper-glutathione complexes: Redox-consequences associated with their ... 
      Speisky Cosoy, Hernán; Gómez, Maritza; Burgos Bravo, Francesca; López Alarcón, Camilo; Jullian Matthaei, Carolina; Olea Azar, Claudio; Aliaga, Margarita E. (PERGAMON-ELSEVIER SCIENCE LTD, 2009-03-01)
      The interaction between Cu2+ ions and GSH molecules leads to the swift formation of the physiologically occurring Cu(I)-[GSH](2) complex. Recently, we reported that this complex is able to reduce molecular oxygen into ...
    • Generic and similar products in Latin American countries: Current aspects and perspectives on bioequivalence ... 
      Storpirtis, Sílvia; Gai, Maria Nella; Cristofoletti, Rodrigo (IOS Press, 2014)
      © 2014 - Network of Centres for Study of Pharmaceutical Law. All rights reserved.In the XIX and XX centuries, Latin American countries have experienced several changes on politics and economics, facing problems related to ...
    • Genetic composition of Mytilus species in mussel populations from southern Chile 
      Larraín Barth, María Angélica; Díaz Pérez, Nelson; Lamas, Carmen; Vargas, Carlos; Araneda Tolosa, Cristian (2012)
      Mussels are one of the most cultivated and commercialized bivalves worldwide and in southern Chile its culture represent an important economic activity. The species identification within the Mytilus genera, by morphological ...
    • Genome and functional characterization of colonization factor antigen I- and CS6-encoding heat-stable ... 
      Hazen, Tracy H.; Nagaraj, Sushma; Sen, Sunil; Permala-Booth, Jasnehta; Canto, Felipe Del; Vidal, Roberto; Barry, Eileen M.; Bitoun, Jacob P.; Chen, Wilbur H.; Tennant, Sharon M.; Rasko, David A. (American Society for Microbiology, 2019)
      Copyright © 2019 Hazen et al. Enterotoxigenic Escherichia coli (ETEC) is a significant cause of childhood diarrhea and is a leading cause of traveler's diarrhea. ETEC strains encoding the heat-stable enterotoxin (ST) are ...
    • Genome-wide analysis of in vivo CcpA binding with and without its key co-factor HPr in the major human ... 
      DebRoy, Sruti; Aliaga Tobar, Víctor; Gálvez, Gabriel; Arora, Srishtee; Liang, Xiaowen; Horstmann, Nicola; Maracajá Coutinho, Vinicius; Latorre Mora, Mauricio; Hook, Magnus; Flores, Anthony; Shelburne, Samuel A. (Wiley, 2020)
      Catabolite control protein A (CcpA) is a master regulator of carbon source utilization and contributes to the virulence of numerous medically important Gram-positive bacteria. Most functional assessments of CcpA, including ...
    • Genomic positional conservation identifies topological anchor point RNAs linked to developmental loci 
      Amaral, Paulo P.; Leonardi, Tommaso; Han, Namshik; Vire, Emmanuelle; Gascoigne, Dennis K.; Arias Carrasco, Raúl; Buscher, Magdalena; Pandolfini, Luca; Zhang, Anda; Pluchino, Stefano; Maracaja Coutinho, Vinicius; Nakaya, Helder I.; Hemberg, Martin; Shiekhattar, Ramin; Enright, Anton J.; Kouzarides, Tony (BIOMED Central Ltd., 2018)
      Background: The mammalian genome is transcribed into large numbers of long noncoding RNAs (lncRNAs), but the definition of functional lncRNA groups has proven difficult, partly due to their low sequence conservation and ...
    • Geochemical characteristics of central Chile (33 °-34 °S) granitoids 
      López -Escobar, Leopoldo; Frey, Frederick A.; Oyarzún, Jorge (Springer-Verlag, 1979)
      Seventeen granitoid samples from batholiths in central Chile (33 °-34 ° S) have been analyzed for trace element content. The samples range in age from Paleozoic to Tertiary, and in rock type from quartz diorite to granite. ...
    • Germacrano aislado de Baccharis sphaerocephala 
      Rivera, L. A.Patricio; Hernandez, G. Rosario (1996)
      In this work, we report on the isolation and identification of the sesquiterpene 6-Oxo-germacra-1(10)E,4(15)-diene (1). This compound was isolated for the first time from a Chilean Baccharis, B. Sphacrocephala.
    • Gestational sympathetic stress programs the fertility of offspring: a rat multi-generation study 
      Piquer Franco, Beatriz Gabriela; Ruz Baltra, Freddy Antonio; Barra Pezo, Rafael Antonio; Lara Peñaloza, Hernán Enrique (MDPI, 2022)
      The exposure to sympathetic stress during the entire period of gestation (4 degrees C/3 h/day) strongly affects the postnatal reproductive performance of the first generation of female offspring and their fertility capacity. ...
    • Glassy carbon electrodes modified with CNT dispersed in chitosan: Analytical applications for sensing ... 
      Arias, Paulina; Ferreyra, Nancy F.; Rivas, Gustavo A.; Bollo Dragnic, Soledad (Elsevier, 2009)
      In this work we report the optimization of a chitosan (CHI) and carbon nanotubes (CNT) modified electrode, CNT-CHI, to study the dsDNA interaction with methylene blue (MB), a well-known DNA intercalator. The analytical ...
    • Glassy carbon electrodes modified with multiwall carbon nanotubes dispersed in polylysine 
      Jalit, Yamile; Rodríguez, Marcela C.; Rubianes, María D.; Bollo Dragnic, Soledad; Rivas, Gustavo A. (WILEY-V C H VERLAG GMBH, 2008-08)
      We report the analytical performance of glassy carbon electrodes (GCE) modified with a dispersion of multiwall carbon nanotubes (MWCNT) in polylysine (Plys) (GCE/MWCNT-Plys). The resulting electrodes show an excellent ...
    • Gln(27)-> Glu beta(2)-Adrenergic Receptor Polymorphism in Heart Failure Patients: Differential Clinical and ... 
      Troncoso Cotal, Rodrigo; Moraga, Francisco; Chiong Lay, Mario; Roldán S., Juan; Bravo Méndez, Roberto; Valenzuela, Rodrigo; Díaz Araya, Guillermo; Campo Sfeir, Andrea Estefanía del; Sanhueza Muñoz, Carlos Joaquín; Rodríguez Villarroel, Andrea Elizabeth; Vukasovic Ramírez, José Luis; Mellado, Rose Marie; Greig, Douglas; Castro, Pablo; Lavandero González, Sergio (WILEY-BLACKWELL PUBLISHING, 2009-05)
      We investigated the clinical response of chronic heart failure patients with beta(2)- adrenergic receptor Gln(27)-> Glu polymorphism treated for 6 months with carvedilol, a alpha/beta-antagonist with antioxidant properties. ...
    • Global spatial assessment of Aedes aegypti and Culex quinquefasciatus: A scenario of Zika virus exposure 
      Alaniz, Alberto J.; Carvajal, Mario A.; Bacigalupo, Antonella; Cattan Ayala, Pedro (Cambridge University Press, 2019)
      Zika virus (ZIKV) is an arbovirus transmitted mainly by Aedes aegypti mosquitoes. Recent scientific evidence on Culex quinquefasciatus has suggested its potential as a vector for ZIKV, which may change the current risk ...