Browsing by Title Artículos de revistas

Now showing items 2539-2558 of 2801

    • The action for declaratory judgment and its recognition under the chilean civil procedure system La tutela ... 
      Hurtado, Renée Marlene Rivero (Universidad de Talca, 2019)
      This article delves into the origin and essentials features of what has been denominated declaratory judgement or action for declaratory judgment as a critical function of the judicial authority held by the court in order ...
    • The aging of ER-mitochondria communication: a journey from undifferentiated to aged cells 
      Morgado Cáceres, Pablo Andrés; Liabeuf Altamirano, Gianella Alejandra; Calle Chalco, Ximena Elena; Briones Suárez, Lautaro Rigoberto Nabi; Riquelme Meléndez, Jaime Andrés; Bravo Sagua, Roberto Francisco; Parra Ortiz, Valentina María (Frontiers Media, 2022)
      The complex physiology of eukaryotic cells requires that a variety of subcellular organelles perform unique tasks, even though they form highly dynamic communication networks. In the case of the endoplasmic reticulum (ER) ...
    • The cellular mechanisms of body iron homeostasis 
      Nũnez, Marco T.; Garate, Marco A.; Arredondo, Miguel; Tapia, Victoria; Muñoz, Patricia (Society of Biology of Chile, 2000)
      Cells tightly regulate iron levels through the activity of iron regulatory proteins (IRPs) that bind to RNA motifs called iron responsive elements (IREs). When cells become iron-depleted. IRPs bind to IREs present in the ...
    • The chemical compositions of essential oils derived from cryptocarya alba and laurelia sempervirens possess ... 
      Touma, Jorge; Navarro, Myriam; Sepúlveda, Betsabet; Pavón, Alequis; Corsini, Gino; Fernández, Katia; Quezada, Claudia; Torres, Angelo; Larrazabal Fuentes, María José; Paredes, Adrián; Neira, Iván; Ferrando, Matías; Bruna, Flavia; Venegas, Alejandro; Bravo, Jessica (MDPI, 2020)
      Cryptocarya alba (Peumo; CA) and Laurelia sempervirens (Laurel; LS) are herbs native to the Chilean highlands and have historically been used for medicinal purposes by the Huilliches people. In this work, the essential ...
    • The complex interplay between mitochondrial dynamics and cardiac metabolism 
      Parra Ortíz, María Valentina; Verdejo, Hugo; Campo Sfeir, Andrea Estefanía del; Pennanen Saavedra, Christian; Kuzmicic, Jovan; Iglewski, Myriam; Hill, Joseph A.; Rothermel, B. A.; Lavandero González, Sergio (SPRINGER/PLENUM PUBLISHERS, 2011-02)
      Mitochondria are highly dynamic organelles, capable of undergoing constant fission and fusion events, forming networks. These dynamic events allow the transmission of chemical and physical messengers and the exchange of ...
    • The crystal and molecular structures of two bromo bis(N,N-dipropylthiocarbamoyl) sulfidocopper(I) complexes 
      Victoriano, Luis; Vega, Andrés; Garland, María Teresa (Kluwer Academic/Plenum Publishers, 1999)
      The reaction of copper(I) bromide, CuBr, with the tetraalkylthiurammonosulfides R4tms (R = iPr, nPr) affords the copper(I) complexes iPr4tmsCuBr (I) (C14H28BrCuN2S2, orthorhombic, Pna21, Z = 4, a = 12.487(2), b = 12.699(2), ...
    • The crystal structure of 4-(pyren-1-yl)butyl-3-nitrobenzoate, C27H21NO4 
      Barrientos, Claudio; Barahona, Patricia; Guevara, Juan Luis; Squella Serrano, Juan; Moris, Silvana (Walter de Gruyter GMBH, 2019)
      C27H21NO4, triclinic, P (1) over bar (no. 2), a = 8.1182(5) angstrom, b = 9.0097(5) angstrom, c = 14.8013(10) angstrom, alpha = 72.603(2)degrees, beta = 82.642(2)degrees, gamma = 79.351(3)degrees, V = 1012.23(11) angstrom(3), ...
    • The crystal structure of the hydrogen bonded molecular adduct thiobisphthalimide diphenylamine 
      Manriquez, V.; Diaz, C.; Copaja, S.; Gonzalez, G. (1991)
      The structure of the complex (PHL)2S. HN(C6H5)2 has been determined by single-crystal X-ray diffraction methods. The compound crystallizes in the triclinic system, space group P 1, with unit cell dimensions a = 896. 1, b ...
    • The developmental regulator Pcz1 affects the production of secondary metabolites in the filamentous fungus ... 
      Rojas Aedo, Juan F.; Gil Durán, Carlos; Goity, Alejandra; Vaca Cerezo, Inmaculada; Levican, Gloria; Larrondo, Luis; Chavez, Renato (Elsevier, 2018)
      Penicillium roqueforti is used in the production of several kinds of ripened blue-veined cheeses. In addition, this fungus produces interesting secondary metabolites such as roquefortine C, andrastin A and mycophenolic ...
    • The effect of 5-substitution on the electrochemical behavior and antitubercular activity of PA-824 
      Bollo Dragnic, Soledad; Núñez Vergara, Luis; Kang, Sunhee; Zhang, Liang; Boshoff, Helena I.; Barry, Clifton; Squella Serrano, Juan; Dowd, Cynthia S. (PERGAMON-ELSEVIER SCIENCE LTD, 2011-01-15)
      Nitroimidazole PA-824 is part of an exciting new class of compounds currently undergoing clinical evaluation as novel TB therapeutics. The recently elucidated mechanism of action of PA-824 involves reduction of the ...
    • The effect of bivalent metal ions on ATPase-ADPase activities of apyrase from Solanum tuberosum 
      Valenzuela, María Antonieta; Kettlun, Ana; Mancilla, Marta; Calvo, Victor; Fanta, Nora; Traverso Cori, A. (1988)
      The purpose of this study was the elucidation of the possible importance of bivalent metal ions in controlling the activity of apyrase (ATP: diphosphohydrolase EC 3.6.1.5) purified from tubers of Solanum tuberosum cv ...
    • The effect of boron content on the microstructure and mechanical properties of Fe 50-X Mn 30 Co 10 Cr 10 B ... 
      Aguilar-Hurtado, Jose Y.; Vargas-Uscategui, Alejandro; Zambrano-Mera, Dario; Palma-Hillerns, Rodrigo (Elsevier Ltd, 2019)
      High and Medium- Entropy Alloys (HEAs and MEAs) are a novel type of materials, which due to the reduction in configurational entropy, can offer an excellent combination of properties, such as, high strength, high ductility ...
    • The effect of chitosan as internal or external coating on the 5-ASA release from calcium alginate microparticles 
      Tapia, Cristián; Molina, Sergio; Diaz, Alvaro; Abugoch James, Lilian; Díaz Dosque, Mario; Valenzuela, Fernando; Yazdani-Pedram Zobeiri, Mehrdad (2010)
      The effect of chitosan as internal or external coating on the mesalamine (5-ASA) release from calcium alginate microparticles (CaAl) was studied, and a delayed release of 5-ASA system intended for colonic drug delivery was ...
    • The effect of fenoldopam on the blood pressure of the rat 
      Quevedo,; Prieto,; Perez-Olea, (1999)
      1. Fenoldopam mesylate, a benzazepine derivative, is a D1 receptor agonist that lowers blood pressure through vasodilation of renal, mesenteric, coronary and cerebral vascular beds. 2. Experiments were performed in rats, ...
    • The Effect of Inkjet Printing over Polymeric Films as Potential Buccal Biologics Delivery Systems 
      Montenegro-Nicolini, Miguel; Reyes, Patricio E.; Jara, Miguel O.; Vuddanda, Parameswara R.; Neira-Carrillo, Andrónico; Butto, Nicole; Velaga, Sitaram; Morales, Javier O. (Springer New York LLC, 2018)
      © 2018 American Association of Pharmaceutical Scientists The buccal mucosa appears as a promissory route for biologic drug administration, and pharmaceutical films are flexible dosage forms that can be used in the buccal ...
    • The effect of ultrasound on the size of liposomes 
      Pezoa,; Avendano,; Thielemann,; Arancibia, (1987)
    • The effects of gamma radiation on aqueous solutions of 2'-3' uridylic acid 
      Castro, Enrique; Jiménez, Rosa (1968)
      The free radicals induced by gamma radiation in deaerated aqueous solutions of 2′‐3′ uridylic acid at 77°K have been studied by electron spin resonance techniques. The annealing at 193°K of the OH radical trapped at 77°K ...
    • The effects of gold nanoparticles functionalized with beta-amyloid specific peptides on an in vitro model ... 
      Ruffa, J.; Hüwelb, S.; Kogan Bocian, Marcelo; Simon, Ulrich; Joachim Gallab, Hans (Elsevier, 2017)
      We studied the effect of gold nanoparticle (AuNP) size, surface charge, concentration and morphology on the integrity of the blood–brain barrier (BBB) in a well-established in vitro model set-up. We focused on the effect ...
    • The effects of pressure on X-ray fluorescence analyses: pXRF under high altitude conditions 
      Merrill, Javier; Montenegro, Victor; Gazley, Michael F.; Voisin Aravena, Leandro Andrés (Royal Soc. Chemistry, 2018-05)
      In Latin America many mine sites are located more than 2000 m above sea level, and some over 4000 m above sea level. Portable X-ray ray fluorescence (pXRF) is becoming a routine method for collecting chemical data at ...
    • The endoxylanases from family 11: computer analysis of protein sequences reveals important structural and ... 
      Sapag, Amalia; Wouters, Johan; Lambert, Christophe; Ioannes, Pablo de; Eyzaguirre, Jaime; Depiereux, Eric (ELSEVIER SCIENCE BV, 2002-05-09)
      Eighty-two amino acid sequences of the catalytic domains of mature endoxylanases belonging to family 11 have been aligned using the programs MATCHBOX and CLUSTAL. The sequences range in length from 175 to 233 residues. The ...