Now showing items 62915-62934 of 92818

    • Cárdenas, Carlos; Chamorro, Eduardo; Galván, Marcelo; Fuentealba Rosas, Patricio (2007)
      Numerical results for the nuclear Fukui function (NFF) based on a nonintegral number of electrons methodology (NIEM) are reported for a series of simple diatomic molecules. A comparison with those obtained from other ...
    • Arellano Sepúlveda, Hugo; Love, W. G. (ELSEVIER SCIENCE BV, 2005-06-13)
      Neutron and proton densities in the nuclear periphery are investigated within (p,n) charge-exchange isobar transitions. For this purpose we have developed parameter-free optical potentials (1)) with a detailed treatment ...
    • Cárdenas, César; Liberona Leppe, José; Molgó, Jordi; Colasante, Cesare; Mignery, Gregory; Jaimovich Pérez, Enrique (COMPANY OF BIOLOGISTS LTD, 2005-07-15)
      Several lines of evidence indicate that increases in nuclear Ca2+ have specific biological effects that differ from those of cytosolic Ca2+, suggesting that they occur independently. The mechanisms involved in controlling ...
    • Reyes Rojas, Montserrat; Peña Oyarzún, Daniel; Maturana Ramírez, Andrea; Torres Gómez, Vicente (Elsevier, 2019)
      Objectives: To evaluate the localization of β-catenin in oral dysplastic cells, the expression of target genes upregulated in oral dysplasia, and the role of Wnt ligands in these events. Materials and methods: Subcellular ...
    • Donoso, J. P.; Tambelli, C. E.; Magon, C. J.; Mattos, R. I.; Silva, I. D. A.; De Souza, J. E.; Moreno, M.; Benavente Espinosa, Eglantina; González Moraga, Guillermo (TAYLOR & FRANCIS LTD, 2010)
      Impedance spectroscopy and nuclear magnetic resonance (NMR) were used to investigate the mobility of water molecules located in the interlayer space of Hþ – exchanged bentonite clay. The conductivity obtained by ac ...
    • Mason, R. E.; Rodríguez-Ardila, A.; Martins, L.; Riffel, R.; González Martín, O.; Ramos Almeida, C.; Ruschel Dutra, D.; Ho, L. C.; Thanjavur, K.; Flohic, H.; Alonso Herrero, A.; Lira Teillery, Paulina; McDermid, R.; Riffel, R. A.; Schiavon, R. P.; Winge, C.; Hoenig, M. D.; Perlman, E. (2015-03)
      We present spectra of the nuclear regions of 50 nearby (D = 1–92 Mpc, median = 20 Mpc) galaxies of morphological types E to Sm. The spectra, obtained with the Gemini Near-IR Spectrograph on the Gemini North telescope, ...
    • Mason, R.; Rodríguez Ardila, A.; Martins, L.; Riffel, R.; González Martín, Omaira; Ramos Almeida, C.; Ruschel Dutra, D.; Ho, L.; Thanjavur, K.; Flohic, H.; Alonso Herrero, A.; Lira Teillery, Paulina; McDermid, R.; Riffel, R.; Schiavon, R.; Winge, C.; Hoenig, M.; Perlman, E. (IOP Publishing, 2015)
      We present spectra of the nuclear regions of 50 nearby (D = 1-92 Mpc, median = 20 Mpc) galaxies of morphological types E to Sm. The spectra, obtained with the Gemini Near-IR Spectrograph on the Gemini North telescope, cover ...
    • Cárdenas Valencia, Carlos; Lamsabhi, Al Mokhtar; Fuentealba Rosas, Patricio (ELSEVIER, 2006-03-20)
      In this work, the nuclear reactivity indices of density functional theory have been generalized to the spin polarized case and their relationship to electron spin polarized indices has been established. in particular, the ...
    • Escobar, Ivan S.; Silva, Carmen I.; Vargas Valero, Tomás; Fuenzalida, Victor M. (2000)
      The control of the microstructure of BaTiO3 films grown on titanium by the hydrothermal–electrochemical method was investigated. Experiments were conducted in a three-electrode high-pressure electrochemical cell in a ...
    • Martínez Rubí, Yadienka; Retuert de la Torre, Pedro Jaime; Yazdani-Pedram Zobeiri, Mehrdad; Barbosa, Miguel; Arias, José Luis (SOC CHILENA QUIMICA, 2008-03)
      Inorganic/organic ternary hybrid films that are constituted of gelatin (G), poly(monomethyl itaconate) (PMMI) and silica (SiO2), are used as a solid matrix to study the crystalization of calcium carbonate (CaCO3). These ...
    • Figueroa, Joaquín; Rogan Castillo, José; Valdivia Hepp, Juan; Kiwi Tichauer, Miguel; Romero, Guillermo; Torres, Felipe (Nature Publishing Group, 2018)
      © 2018, The Author(s).Strong correlation effects emerge from light-matter interactions in coupled resonator arrays, such as the Mott-insulator to superfluid phase transition of atom-photon excitations. We demonstrate that ...
    • Gatica, Marta; Allende, Catherine C.; Allende, Jorge E. (1989)
      Casein kinase II purified from nuclei of Xenopus laevis oocytes is inhibited by several specific nucleic acids. This kinase, the main phosphorylating activity of the oocyte nucleus, is markedly inhibited by poly U at 10 ...
    • Campodónico, Paola R.; Andrés, Juan; Aizman, Arie; Contreras Ramos, Renato (2007)
      We propose that a specific property of a chemical fragment, its regional electrophilicity, be taken as defining its nucleofugality index nu(PG) in alpha-elimination reactions. We tabulate this quantity for a series of ...
    • Walker Bozzo, Laura; Flores Carrasco, Sergio (University of California, 2007)
      The expression of nucleolar organizer regions (NORs), distinguished through silver staining procedures, and the distribution of ribosomal genes, detected by fluorescent in situ hybridization with a ribosomal DNA probe, ...
    • López-Moncada, Fernanda; Tapia, Daniel; Zuñiga, Nolberto; Ayarza, Eliana; López-Fenner, Julio; Redi, Carlo Alberto; Berríos, Soledad (MDPI AG, 2019)
      We studied and compared the nucleolar expression or nucleoli from specific bivalents in spermatocytes of the standard Mus musculus domesticus 2n=40, of Robertsonian (Rb) homozygotes 2n = 24 and heterozygotes 2n = 32. We ...
    • Muñoz Ruz, Ivonne Andrea; Droguett Ossa, Daniel; Donoso Torres, Wendy Karina; Kemmerling Weis, Ulrike; Venegas, Rojas Bernardo Arturo; Rivera, Martínez Cesar Andres (2012)
      This study aimed to examine the role of chronic restraint stress (RS) on oral squamous cell carcinomas induced by 4-nitroquinoline-1-oxide (4-NQO) in CF-1 mouse tongues, measured by the expression of argyrophilic staining ...
    • Cedillo, A.; Contreras Ramos, Renato; Galván, M.; Aizman, Arie; Andrés, Juan; Safont, Vincent S. (2007)
      We introduce and test a nucleophilicity index as a new descriptor of chemical reactivity. The index is derived from a perturbation model for the interaction between the nucleophile and a positive test charge. The computational ...
    • Jaramillo, Paula; Fuentealba Rosas, Patricio; Pérez López, Patricia (ELSEVIER, 2006-08-31)
      A recently introduced empirical nucleophilicity index for a series of n- and pi-nucleophiles was evaluated. The index is based on the frontier molecular orbital information of the nucleophile and its electrophilic partner. ...
    • Jaramillo, Paula; Fuentealba Rosas, Patricio; Pérez, Patricia (2006)
      A recently introduced empirical nucleophilicity index for a series of n- and π-nucleophiles was evaluated. The index is based on the frontier molecular orbital information of the nucleophile and its electrophilic partner. ...