Browsing by Title Artículos de revistas

Now showing items 1539-1558 of 2801

    • Magnetic properties of a cobalt(II) dimer of pseudo tetrahedral geometry [Co-2{(CO)(9)Co3C-COO}(5), C14H19N2H] 
      Calvo Pérez, Víctor; Spodine Spiridonova, Evgenia (ELSEVIER SCIENCE SA, 2000-12-15)
      The crystalline ion pair [Co-2{OOC-CCo3(CO)(9)}(5), C10H6(N(CH3)(2))(2)H] (1) presents unusual magnetic properties. The X-band EPR spectrum of 1 at room temperature presents two unresolved bands at g = 1.98 and 4.55. At a ...
    • Magnetic properties of a cobalt(II) dimer of pseudo tetrahedral geometry [Co2{(CO)9Co3C-COO}5, C14H19N2H] 
      Calvo Pérez, Víctor; Spodine Spiridonova, Evgenia (2000)
      The crystalline ion pair [Co2{OOC-CCo3(CO)9}5, C10H6(N(CH3)2)2H] (1) presents unusual magnetic properties. The X-band EPR spectrum of 1 at room temperature presents two unresolved bands at g = 1.98 and 4.55. At a low ...
    • Magnetic properties of dinuclear copper(II) complexes with a N6 pyridazine-derived ligand 
      Spodine Spiridonova, Evgenia; Atria Salas, Ana María; Manzur Saffie, Jorge; García, Ana; Garland, María Teresa; Hocquet, Alexandre; Sanhueza, Eduardo; Baggio, Ricardo; Peña, Octavio; Saillard, Jean (1997)
      A new hexadentate ligand 3,6-bis[(6-methyl-2-pyridyl)(2-pyridyl)methyl]pyridazine (mbdpdz) was prepared by a condensation reaction of 3,6-dichloropyridazine and (6-methyl-2-pyridyl)(2-pyridyl)methyllithium, and the following ...
    • Magnetic properties of dinuclear copper(II) complexes with simple pyrazolate bridges 
      Spodine Spiridonova, Evgenia; Atria Salas, Ana María; Valenzuela Pedevila, Jorge; Jalocha, J.; Manzur Saffie, Jorge; García, A. M.; Garland, María Teresa; Peña, Octavio; Saillard, J. Y. (ROYAL SOC CHEMISTRY, 1999-09-07)
      Three new copper(II) complexes with simple pyrazolate bridges have been prepared, [Cu-2(pz)(2)(dpa)(2)(H2O)Cl]Cl . H2O 1, [Cu-2(pz)(2)(phen)(2)Cl-2]. 2C(2)H(5)OH 2 and [Cu-2(pz)(phen)(2)Cl-3]. 2H(2)O 3 (Hpz = pyrazole, dpa ...
    • Magnetic properties of hybrid organo-inorganic copper(II) oxovanadate(V) phosphate and phosphonate bridged systems 
      Spodine Spiridonova, Evgenia; Venegas Yazigi, Diego; Ushak, S.; Paredes García, Verónica; Saldías, Marianela; Le Fur, Eric; Pivan b, J.Y. (PERGAMON-ELSEVIER SCIENCE LTD, 2007-06)
      The hybrid organo-inorganic compounds [Cu4(bipy)4V4O11(PO4)2]nH2O (n 5) (1), [Cu2(phen)2(PO4)(H2PO4)2(VO2) Æ 2H2O] (2) and [Cu2(phen)2(O3PCH2PO3)(V2O5) (H2O)]H2O (3) which present different bridging forms of the ...
    • Magnetic properties of phosphate-bridged copper(II) organic-inorganic hybrid compounds 
      Moreno, Yanko; Vega, Andrés; Ushak, Svetlana; Baggio, Ricardo; Peña, Octavio; Le Fur, Eric; Pivan, Jean; Spodine Spiridonova, Evgenia (2003)
      Hydrothermal synthesis has allowed us to isolate and characterize three new inorganic organic hybrid materials, the compounds [Cu-2(phen)(2)(H2O)(2)(H2PO4)(2)](NO3)(2).2H(2)O (1), [(Cu(2)bipy(2))(2)(V4O9)(PO4)(2)(HPO4)(H ...
    • Magneto-structural characterization of [Cu4(prz)4(CH3OH)2L 2″](CIO4)2 (L″H = 1,1-DI-(2-pyridyl)-1-methoximethanol, ... 
      Manzur Saffie, Jorge; García, A.; Garland, María Teresa; Acuña, V.; Gonzalez, O.; Peña, Octavio; Atria Salas, Ana María; Spodine Spiridonova, Evgenia (Elsevier Ltd, 1996)
      The title compound [Cu2C19H20N6O7Cl](2) is a copper(II) complex, in which each bicationic moiety is bridged by two pyrazolate ligands. In the centrosymmetric, tetrameric dications pairs of copper atoms, one square planar ...
    • Magnetohydrodynamic siphon for tapping out liquid metals 
      Riveros,; Warczok, (2007)
      The evacuation of liquid metals or mattes from metallurgical furnaces presents many operational challenges due to safety issues and the fast destruction of tapping blocks. Particularly, a continuous smelting and converting ...
    • Maintaining Myocardial Glucose Utilization in Diabetic Cardiomyopathy Accelerates Mitochondrial Dysfunction 
      Wende, Adam R.; Schell, John C.; Ha, Chae-Myeong; Pepin, Mark E.; Khalimonchuk, Oleh; Schwertz, Hansjörg; Pereira, Renata O.; Brahma, Manoja K.; Tuinei, Joseph; Contreras Ferrat, Ariel Eduardo; Wang, Li; Andrizzi, Chase A.; Olsen, Curtis D.; Bradley, Wayne E.; Dell’Italia, Louis J.; Dillmann, Wolfgang H.; Litwin, Sheldon E.; Abel, E. Dale (American Diabetes Association, 2020)
      Cardiac glucose uptake and oxidation are reduced in diabetes despite hyperglycemia. Mitochondrial dysfunction contributes to heart failure in diabetes. It is unclear whether these changes are adaptive or maladaptive. To ...
    • Manipulation of ACE2 expression in COVID-19 
      Chaudhry, Farhan; Lavandero González, Sergio; Xie, Xiang; Sabharwal, Basera; Zheng, Ying-Ying; Correa, Ashish; Narula, Jagat; Levy, Phillip (BMJ, 2020)
      SARS-CoV-2 is the virus responsible for the ongoing COVID-19 outbreak. The virus uses ACE2 receptor for viral entry. ACE2 is part of the counter-regulatory renin-angiotensin-aldosterone system and is also expressed in the ...
    • Maqui, Calafate, and Blueberry fruits extracts treatments suppress the pathogenic interaction amongst human ... 
      Ovalle Marín, A.; Reyes Farías, M.; Vásquez, K.; Parra Ruiz, C.; Quitral, V.; Jiménez, P.; García, L.; Ramírez, L. A.; Quezada, J.; González Muniesa, P.; García Díaz, D. F. (IOS Press, 2020)
      BACKGROUND: Obesity occurs due to a positive energy imbalance, leading to the expansion of adipose tissue. This phenomenon triggers a chronic low-grade inflammatory state, which is associated with comorbidities development. ...
    • Marcadores de inflamación endotelial subclínica en una familia con hiperaldosteronismo familiar tipo I por ... 
      Stehr, Carlos B.; Carvajal, Cristián A.; Lacourt, Patricia; Alcaíno Gálvez, Hernán Alejandro; Mellado, Rose Marie; Cattani, Andreína; Mosso, Lorena; Lavandero González, Sergio; Fardella, Carlos E. (SOC MEDICA SANTIAGO, 2008-09)
      Type I familial hyperaldosteronism is caused by the presence of a chimaeric gene CYP11B1/CYP11B2 which encodes an enzyme with aldosterone synthetase activity regulated by adrenocorticotrophic hormone (ACTH). Therefore, ...
    • Markedly increased Rho-kinase activity in circulating leukocytes in patients with chronic heart failure 
      Ocaranza, María Paz; Gabrielli, Luigi; Mora, Italo; García Nannig, Lorena; McNab, Paul; Godoy, Iván; Braun, Sandra; Córdova, Samuel; Castro, Pablo; Novoa, Ulises; Chiong Lay, Mario; Lavandero González, Sergio; Jalil, E. (MOSBY-ELSEVIER, 2011-05)
      Background The small guanosine triphosphatase Rho and its target Rho-kinase have significant roles in experimental remodeling and ventricular dysfunction, but no data are available on Rho-kinase activation in patients with ...
    • Mass spectrometry/gas chromatography-mass spectrometry approach for rapid screening/quantitative determination ... 
      Zúñiga, Carolina; Calderón del Río, Katia Romina; Richter Duk, Pablo; Carrasco, Rodrigo (ELSEVIER, 2006-01-13)
      A new mass spectrometry/gas chromatography-mass spectrometry (MS/GC-MS) approach has been developed for the screening and quantitative determination of perchloroethylene (PERC) in workplace and outdoor air samples, which ...
    • Mass transfer kinetic and quality changes during high-pressure impregnation (HPI) of jumbo squid (dosidicus ... 
      Lemus Mondaca, Roberto; Zambra, Carlos; Marín, Fernanda; Pérez Won, Mario; Tabilo Munizaga, Gipsy (Springer, 2018-08)
      Jumbo squid is an important marine resource commercialized in Chile as well as American countries such as PerA, Mexico, and USA. In order to find the best conditions for prevention of squid meat degradation, this study ...
    • Maternal serum androgens in pregnant women with polycystic ovarian syndrome: possible implications in ... 
      Maliqueo Yevilao, Manuel; Ángel Badillo, Bárbara; Pérez Bravo, Francisco; Lara Peñaloza, Hernán; Sir Petermann, Lidia (OXFORD UNIV PRESS, 2002-10)
      BACKGROUND: The aim of this study was to evaluate the peripheral serum androgen concentrations in normal and polycystic ovarian syndrome (PCOS) women during pregnancy, in order to establish if PCOS may induce gestational ...
    • Maternal sympathetic stress impairs follicular development and puberty of the offspring 
      Barra, Rafael; Cruz Neculpán, Gonzalo Andrés; Mayerhofer, Artur; Paredes Vargas, Alfonso; Lara Peñaloza, Hernán (Society for Reproduction and Fertility, 2014)
      Chronic cold stress applied to adult rats activates ovarian sympathetic innervation and develops polycystic ovary (PCO) phenotype. The PCO syndrome in humans originates during early development and is expressed before or ...
    • Maternal-to-fetal allopurinol transfer and xanthine oxidase suppression in the late gestation pregnant rat 
      Kane, Andrew D.; Camm, Emily J.; Richter, Hans G.; Lusby, Ciara; Tijsseling, Deodata; Kaandorp, Joepe J.; Derks, Jan B.; Ozanne, Susan E.; Giussani, Dino A. (American Physiological Society, 2013)
      © 2013 The Authors. Fetal brain hypoxic injury remains a concern in high-risk delivery. There is significant clinical interest in agents that may diminish neuronal damage during birth asphyxia, such as in allopurinol, an ...
    • Mathematical Modeling Of Thin-Layer Drying Kinetics Of Cape Gooseberry (Physalis Peruviana L.) 
      Vega Gálvez, Antonio; Puente Díaz, Luis; Lemus Mondaca, Roberto; Miranda, Margarita; Torres, María José (Wiley, 2014)
      Drying kinetics of Cape gooseberry was studied and modeled during processing at four temperatures (60, 70, 80 and 90C). Desorption isotherm was obtained at 40C giving a monolayer moisture content of 0.086 g water/g d.m. ...
    • Matrix metalloproteinase 9 displays a particular time response to acute stress: variation in its levels and ... 
      Aguayo, Felipe I.; Pacheco Zapata, Aníbal; García Rojo, Gonzalo; Pizarro Bauerle, Javier; Doberti Martínez, Ana Valentina; Tejos Bravo, Macarena; García-Pérez, María A.; Rojas, Paulina S.; Fiedler Temer, Jenny (ACS Publications, 2018-05)
      A single stress exposure facilitates memory formation through neuroplastic processes that reshape excitatory synapses in the hippocampus, probably requiring changes in extracellular matrix components. We tested the hypothesis ...