Now showing items 2272-2291 of 2801

    • Villar Fincheira, Paulina Fernanda; Paredes, Aaron J.; Hernández Díaz, Tomás Alonso; Norambuena Soto, Ignacio Esteban; Cancino Arenas, Nicole Ester; Sanhueza Olivares, Fernanda; Contreras Briceño, Felipe; Mandiola, Jorge; Bruneau Leyton, Nicole Nayira; García Nannig, Lorena; Ocaranza, María Paz; Troncoso Cotal, Rodrigo Hernán; Gabrielli, Luigi; Chiong Lay, Mario Martin (Frontiers Media, 2021)
      Little is known about the effects of training load on exercise-induced plasma increase of interleukin-6 (IL-6) and soluble IL-6 receptor (sIL-6R) and their relationship with vascular remodeling. We sought to evaluate the ...
    • Valdebenito, Silvana; Zanocco, Renzo P.; Günther Sapunar, Germán; Lemp Miranda, Else; Zanocco Loyola, Antonio (2011)
      The photophysical properties of 4-(benzothiazol-2-yl)-N,N-diphenylaniline, were studied in a series of solvents. UV-Vis absorption spectra are insensitive to solvent polarity whereas the fluorescence spectra in the same ...
    • Curitol, Manuel; Ragas, Xavier; Nonell, Santi; Pizarro, Nancy; Encinas, María V.; Rojas, Pedro; Zanocco, Renzo P.; Lemp Miranda, Else; Günther Sapunar, Germán; Zanocco Loyola, Antonio (The American Society of Photobiology, 2013)
      The photophysical properties of 2-phenyl-naphtho[1,2-d][1,3] oxazole, 2(4-N,N-dimethylaminophenyl)naphtho[1,2-d][1,3] oxazole and 2(4-N,N-diphenylaminophenyl) naphtho[1,2-d] [1,3]oxazole were studied in a series of ...
    • Lemp Miranda, Else; Pizarro, Nancy; Encinas, María Victoria; Zanocco Loyola, Antonio (2001)
      Detection of O2(1Δg) emission, λmax = 1270 nm, following laser excitation and steady-state methods were employed to measure total, kT, and chemical, kR, reaction rate constants for the reaction between 3-methylindole and ...
    • Lemp Miranda, Else; Zanocco Loyola, Antonio; Günther Sapunar, Germán; Pizarro, Nancy (AMER CHEMICAL SOC, 2003-04-18)
      Detection Of O-2((1)Delta(g),) phosphorescence emission, lambda(max) = 1270 nm, following laser excitation and steady-state methods was employed to determine the total rate constant, k(T), and the chemical reaction rate ...
    • Lemp Miranda, Else; Zanocco Loyola, Antonio; Günther Sapunar, Germán; Pizarro, Nancy (PERGAMON-ELSEVIER SCIENCE LTD, 2006-11-13)
      The reaction of singlet molecular oxygen with a series of cyclic and acyclic alpha-diimines was studied. Time-resolved methods were used to measure total reaction rate constants and steady-state methods were used to determine ...
    • Lemp Miranda, Else; Zanocco Loyola, Antonio; Günther Sapunar, Germán; Pizarro, Nancy (2006)
      The reaction of singlet molecular oxygen with a series of cyclic and acyclic α-diimines was studied. Time-resolved methods were used to measure total reaction rate constants and steady-state methods were used to determine ...
    • Pérez, P.; Toro Labbé, Alejandro; Contreras Ramos, Renato (American Chemical Society, 2001)
      Continuum solvent effect on the electrophilicity index recently proposed by Parr and co-workers (Parr, R. G.; von Szentpaly, L.; Liu, S. J. Am. Chem. Soc. 1999, 121, 1922) is discussed in detail. Solvent effect is introduced ...
    • Lemp Miranda, Else; Valencia, Cristina; Zanocco Loyola, Antonio (ELSEVIER SCIENCE SA, 2004-11-01)
      Detection of O2(1 g) emission, λmax = 1270 nm, following laser excitation and steady-state methods were employed to measure total reaction rate constants, kT, for the reaction between singlet oxygen and the antimalarial ...
    • Lemp Miranda, Else; Valencia, Cristina; Zanocco Loyola, Antonio (2004)
      Detection of O2(1Δg) emission, λmax=1270 nm, following laser excitation and steady-state methods were employed to measure total reaction rate constants, k T, for the reaction between singlet oxygen and the antimalarial ...
    • Benavente, E.; Díaz, C; González, G (1992)
      The influence of various common basic solvents on the IR and 1H-NMR spectra of a series of N,N′-thiodianilines, , X = H, OMe, Br, Cl, and m-NO2 has been studied. The solvent shifts of both, frequencies θ(NH) and chemical ...
    • Zanocco Loyola, Antonio; Lemp Miranda, Else; Pizarro, Nancy; De la Fuente, Julio; Günther Sapunar, Germán (Elsevier, 2001)
      Detection of O2(1Δg) phosphorescence emission, λmax=1270nm, following laser excitation and steady state methods were employed to determine both the total constant, kT LID, and the chemical reaction rate constants, kR LID, ...
    • Mella, Pablo; Cabezas, Karina; Cerda, Carla; Cepeda-Plaza, Marjorie; Günther Sapunar, Germán; Pizarro, Nancy; Vega, Andrés (Royal Society of Chemistry, 2016)
      The [(phen)((HO)-O-2)Re(CO)(3)](+)(CF3SO3)(-) salt, 1(+)(CF3SO3-), has been crystallized in the form of two new solvates, [(phen)(H2O)Re(CO)(3)](+)(CF3SO3)(-)center dot(C4H8O)(0.5) and [(phen)(H2O)Re(CO)(3)](+)(CF3SO3)(-)center ...
    • Pessoa Mahana, Hernán; Kosche Cárcamo, Johann; Ron Higuera, Nadia; Recabarren Gajardo, Gonzalo; Saitz Barría, Claudio; Araya Maturana, Ramiro; Pessoa Mahana, Carlos (2008)
      A novel series of 2-benzothiophenealkylpiperazine derivatives 11 (a-d) with potential affinity at 5-HT1A serotonin receptors have been synthesized via solvent-free, microwave-promoted Michael addition of benzo[b]thiophene ...
    • Pessoa Mahana, Hernán; González, Marcos; González, Marcelo; Pessoa, D.; Araya Maturana, Ramiro; Ron Higuera, Nadia Betsabé; Saitz Barría, Claudio (ARKAT USA INC, 2009)
      A series of Michael adducts (5-11) have been synthesized with good yields under solvent-free microwave conditions. Aliphatic and aromatic amines utilized as Michael donors reacted with 1-(4,7-dimethoxybenzo[b] thiophen-2 ...
    • Pessoa Mahana, Hernán; González, Marcos; González, Marcelo; Pessoa Mahana, David; Araya Maturana, Ramiro; Ron, Nadia; Saitz Barría, Claudio (Arkat, 2009)
      A series of Michael adducts (5-11) have been synthesized with good yields under solvent-free microwave conditions. Aliphatic and aromatic amines utilized as Michael donors reacted with 1-(4,7-dimethoxybenzo[b]thiophen-2- ...
    • Pessoa Mahana, Hernán; Pessoa, D.; Salazar González, Ricardo Andrés; Valderrama Guerrero, Jaime Adolfo; Sáez, Edmundo; Araya Maturana, Ramiro (GEORG THIEME VERLAG KG, 2004-02-18)
      The syntheses of 2-(2-nitrophenyl)-1-benzoyl-1H-benzimidazole derivatives 5-9 and their reduction to the corresponding 2-benzimidazoylbenzamides 10-13 are described. Compounds 10-13 were cleanly and efficiently converted ...
    • Valenzuela, Camila; Gil, Magdalena; Urrutia, Ítalo M.; Sabag, Andrea; Enninga, Jost; Santiviago Cid, Carlos (Wiley, 2021)
      The ability ofSalmonellato survive and replicate within mammalian host cells involves the generation of a membranous compartment known as theSalmonella-containing vacuole (SCV).Salmonellaemploys a number of effector proteins ...
    • Espinoza, Jeannette; Fuentes, Edwar; Báez, María E. (2009)
      Bensulfuron-methyl sorption was studied in Andisol and Ultisol soils in view of their characteristic physical and chemical properties, presenting acidic pH and variable charge. Humic and fulvic acids (HA and FA) and humin ...