Browsing by Title Artículos de revistas

Now showing items 3652-3671 of 4966

    • (R)-and (S)-caclaurine from the bark of Peumus boldus 
      Asencio, Marcelo; Cassels Niven, Bruce; Speisky Cosoy, Hernán; Valenzuela Bonomo, Carlos (Elsevier, 1992-10-16)
      The Stem bark of P. boldus, in addition to the previously reported benzylisoquinoline alkaloids. sensu lato, accumulates small amounts of their common precursor (R)- aud (to a lesser extent) (S )-coclaurine.The ...
    • Rab GTPase signaling in neurite outgrowth and axon specification 
      Villarroel Campos, David Leonardo; Bronfman, Francisca; González Billault, Christian (John Wiley and Sons Inc., 2016)
      © 2016 Wiley Periodicals, Inc. Neurons are highly polarized cells that contain specialized subcellular domains involved in information transmission in the nervous system. Specifically, the somatodendritic compartment ...
    • Rab-mediated trafficking role in neurite formation 
      Villarroel Campos, David Leonardo; Gastaldi, Laura; Conde, Cecilia; Cáceres, Alfredo; González Billault, Christian (International Society for Neurochemistry, 2014)
      Neuronal cells are characterized by the presence of two confined domains, which are different in their cellular properties, biochemical functions and molecular identity. The generation of asymmetric domains in neurons ...
    • Rab35 functions in axon elongation are regulated by P53-related protein kinase in a mechanism that involves ... 
      Villarroel Campos, David Leonardo; Henríquez, Daniel R.; Bodaleo, Felipe J.; Oguchi, Mai E.; Bronfman, Francisca; Fukuda, Mitsunori; González Billault, Christian (Society for Neuroscience, 2016)
      © 2016 the authors. Rab35 is a key protein for cargo loading in the recycling endosome. In neuronal immortalized cells, Rab35 promotes neurite differentiation. Here we describe that Rab35 favors axon elongation in rat ...
    • Radial Response of Outer Radiation Belt Relativistic Electrons During Enhancement Events at Geostationary Orbit 
      Pinto, VA; Bortnik, J; Moya, PS; Lyons, LR; Sibeck, DG; Kanekal, SG; Spence, HE; Baker, DN (Blackwell Publishing Ltd, 2020)
    • Radiation from electrons in curved spaces 
      Villarroel, Danilo (1975)
      It is shown that the energy-momentum tensor of the electromagnetic field, for an electron in a curved space, may be split into two dynamically independent parts. One of them, the radiation tensor, has the following remarkable ...
    • Radiocarbon chronology of the last glacial maximum and its termination in northwestern Patagonia 
      Moreno Moncada, Patricio; Denton, George H.; Moreno, Hugo; Lowell, Thomas V.; Putnam, Aaron E.; Kaplan, Michael R. (Elsevier, 2015)
      We examine the timing and magnitude of the last glacial maximum (LGM) and the last glacial termination (LGT) in northwestern Patagonia, situated in the middle latitudes of South America. Our data indicate that the main ...
    • A radiographic method to estimate lung volume and its use in small mammals 
      Canals Lambarri, Mauricio; Olivares Pérez-Montt, Ricardo; Rosenmann Abramovich, Mario (SOCIEDAD BIOLGIA CHILE, 2005)
      In this paper we develop a method to estimate lung Volume using chest x-rays of small mammals. We applied this method to assess the lung volume of several rodents. We showed that a good estimator of the lung volume is: ...
    • Rainfall, microhabitat, and small mammals influence the abundance and distribution of soil microorganisms ... 
      Aguilera, Lorgio E.; Armas, Cristina; Cea, Alex P.; Gutiérrez, Julio R.; Meserve, Peter L.; Kelt, Douglas A. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2016)
      Patterns in rainfall and soil water availability are considered to be the main drivers governing arid and semiarid ecosystems. While the mechanisms by which water limits aboveground net primary production has been widely ...
    • Raman and surface enhanced Raman scattering of a black dyed silk 
      Aguayo, T.; Garrido, C.; Clavijo Campos, Ernesto; Gómez Jeria, Juan; Araya Monasterio, C.; Icaza, M.; Espinoza Moraga, F.; Campos Vallette, Marcelo (John Wiley & Sons, 2013)
      The Raman and surface enhanced Raman scattering (SERS) spectra of a black dyed silk sample (BDS) were registered. The spectral analysis was performed on the basis of Raman and SERS spectral data of isolated samples of ...
    • Raman and surface enhanced Raman scattering study of the orientation of cruciform 9,10-anthracene thiophene ... 
      Muñoz Pérez, J.; Leyton, P.; Paipa, C.; Soto, J. P.; Brunet, J.; Gómez Jeria, Juan; Campos Vallette, Marcelo (Pergamon-Elsevier, 2016)
      Accurate characterization of two phase bubbly flows is crucial in many industrial processes such as fluidized reactors, ore froth flotation, etc. The bubble size determines the rate at which components present in the gas ...
    • Raman and surface enhanced raman signals of the sensor 1-(4-Mercaptophenyl)-2,4,6-Triphenylpyridinium perchlorate 
      Celis, Freddy; Campos Vallette, Marcelo; Vega, José Cárcamo; Gómez Jeria, Juan; Aliaga, Carolina (Sociedad Chilena de Quimica, 2015)
      The sensor 1-(4-mercaptophenyl)-2,4,6-triphenylpyridinium perchlorate compound was vibrationally characterized using Raman and the Surface-Enhanced Raman techniques, SERS and Shell-Isolated Nanoparticles-Enhanced Raman ...
    • Raman and surface enhanced raman signals ofthe sensor 1-(4-mercaptophenyl)-2,4,6-triphenylpyridinium perchlorate 
      Celis, Freddy; Campos Vallette, Marcelo; Cárcamo Vega, José; Gómez Jeria, Juan; Aliaga, Carolina (Soc Chilena Quimica, 2015)
      The sensor 1-(4-mercaptophenyl)-2,4,6-triphenylpyridinium perchlorate compound was vibrationally characterized using Raman and the Surface-Enhanced Raman techniques, SERS and Shell-Isolated Nanoparticles-Enhanced Raman ...
    • Raman and surface-enhanced Raman scattering in the study of human rotator cuff tissues after shock wave treatment 
      Cárcamo, José J.; Aliaga, Aalvaro E.; Clavijo Campos, Ernesto; Brañes, M.; Campos Vallette, Marcelo (Johm Wiley, 2012)
      Important improvements of diseases of the rotator cuff supraspinatus tendons are seen after shock wave (SW) treatment. Neo-angiogenesis stimulation and hypercellularization result from short periods of treatment. The present ...
    • Raman characterization of CuIrSnX4 normal-spinel systems 
      Barahona, P.; Galdámez Silva, Antonio; Valencia Gálvez, P.; Moris, S (Natl Inst R&D Materials Physics, 2020)
      CuIrSnS4, CuIrSnSe4 and CuIrSnS2Se2 were synthetized by a solid-state reaction at 700 degrees C. Powder X-ray diffraction patterns were consistent with normal spinel-type structure. Scanning electron microscopy (SEM-EDS) ...
    • Raman characterization of pigments in painted beams and a wall painting discovered in the San Francisco ... 
      Araya, C.; Jaque, J.; Naranjo, N.; Icaza, M.; Clavijo Campos, Ernesto; Aguayo, T.; Campos Vallette, Marcelo (2014)
      A material characterization of two artworks discovered in the San Francisco Church, Santiago, Chile, was performed using micro-Raman spectroscopy. Structural painted beams and a wall painting that belong to the same time ...
    • Raman Identification of Pigments in the Work of the Chilean Contemporary Visual Artist Ignacio Gumucio 
      Rodríguez Gacitúa, Camila; Campos Vallette, Marcelo; Celis Bozo, Freddy (Sociedad Chilena Química, 2016)
      The main pigments in the painting by the Chilean artist Ignacio Gumucio were identified by using micro-Raman spectroscopy. Three works by the artist, two paintings with wooden stand and a wall painting were analyzed. ...
    • Raman identification of pigments in wall paintings of the colonial period from bolivian churches in the ... 
      Sepúlveda, Marcela; Gutiérrez, Sebastián; Cárcamo Vega, José; Surco Luque, Julio; Campos Vallette, Marcelo; Guzmán, Fernando; Conti, Paola; Pereira, Magdalena; Rúa, Carlos (Mimesis Edizioni, 2017)
      Micro-Raman spectroscopy was used to analyze and identify pigments and determine the palette of color in wall paintings from four churches of the Colonial Period, in the Bolivian highlands. The ancient churches Santiago ...
    • Raman of indigo on a silver surface. Raman and theoretical characterization of indigo deposited on silicon ... 
      Corales, Guillermo; Celis, Freddy; Gómez Jeria, Juan; Campos Vallette, Marcelo; Cárcamo Vega, José (Taylor & Francis, 2017)
      Raman, surface-enhanced Raman scattering, and shell isolated nanoparticles-enhanced Raman scattering techniques were used to study the indigo-nanoparticle interaction nature. Silver nanoparticles were employed with and ...
    • Raman spectra of thin solid films. VII–Uranyl superphtalocyanine 
      Clavijo Campos, Ernesto; Aroca, R.; Kovacs, G. J.; Jennings, C. A.; Duff, J.; Loutfy, R. O. (1989)
      Raman and infrared spectra of evaporated uranyl superphthalocyanine (UO2SPc) films are reported. Raman spectra of UO2SPc (formed by five isoindoline subunits) depart from the general spectral trends observed in metallated ...