Browsing by Title

Now showing items 88779-88798 of 92398

    • Uncontrolled asthma in specialized centers in Latin America: findings from the asthma control in Latin ... 
      Neffen, Hugo E.; Vallejos Pérez, Edith; Chahuan Yumha, Marco; Giugno, Eduardo; Hernández Colin, Dante D.; Bolívar, Fabio; Levy, Gur; Vieira, Claudia; Moraes, Felipe; Viana, Karynna P.; Soares, Claudia R. (Elsevier, 2017-02)
    • Uncoupled inflammatory, proliferative, and cytoskeletal responses in senescent human gingival fibroblasts 
      Páez, Jassir; Hernández, Romina; Espinoza, Javier; Rojas, Leticia; Martínez, Constanza E.; Tobar Bachler, Nicolás; Martínez Winkler, Jorge; Smith, Patricio C. (Wiley, 2020)
      Background and objective: Aging is characterized by a decline in tissue structure and function that may be explained by the development of cellular senescence. However, the acquisition of specific phenotypic responses in ...
    • Uncoupling of spinach thylakoids by gramine 
      Andreo, Carlos S.; Orellano, Elena G.; Niemeyer, Hermann M. (1984)
      The indol alkaloid gramine inhibited photophosphorylation, Pi-ATP exchange reaction and proton gradient, and enhanced electron transport in spinach thylakoids with I50 around 0.2 m M.It thus behaves as a typical uncoupler ...
    • Uncoupling substrate and activation functions of rotavirus NSP5: Phosphorylation of Ser-67 by casein kinase ... 
      Eichwald, Catherine; Jacob Ahumada, Germaine; Muszynski, Bartosz; Allende, Jorge E.; Burrone, Oscar R. (NATL ACAD SCIENCES, 2004-11-16)
      Rotavirus NSP5 is a nonstructural protein that localizes in viro-plasms of virus-infected cells. NSP5 interacts with NSP2 and undergoes a complex post-translational hyperphosphorylation, generating species with reduced ...
    • Uncoupling the MgATP-induced inhibition and aggregation of Escherichia coli phosphofructokinase-2 by ... 
      Báez, Mauricio; Merino, Felipe; Astorga, Guadalupe; Babul Cattán, Jorge (ELSEVIER, 2008-06-11)
      Binding of MgATP to an allosteric site of Escherichia coli phosphofructokinase-2 (Pfk-2) provoked inhibition and a dimer-tetramer (D-T) conversion of the enzyme. Successive deletions of up to 10 residues and point mutations ...
    • Uncovering the knowledge flows and intellectual structures of research in technological forecasting and ... 
      Sarín, Shikhar; Haon, Christophe; Belkhouja, Mustapha; Mas-Tur, Alicia; Roig-Tierno, Norat; Sego, Trina; Porter, Alan; Merigo, José M.; Carley, Stephen (Elsevier, 2020)
      Technological Forecasting and Social Change (TF&SC) celebrates its fiftieth anniversary this year. The anniversary represents an appropriate time for an introspective analysis of the journal's history and impact. This study ...
    • Uncovering the potential of novel micromonosporae isolated from an extreme hyper-arid Atacama Desert soil 
      Carro, Lorena; Castro, Jean Franco; Razmilic, Valeria; Nouioui, Imen; Pan, Che; Igual, José M.; Jaspars, Marcel; Goodfellow, Michael; Bull, Alan T.; Asenjo, Juan A.; Klenk, Hans Peter (Nature Publishing Group, 2019)
      The taxonomic status, biotechnological and ecological potential of several Micromonospora strains isolated from an extreme hyper arid Atacama Desert soil were determined. Initially, a polyphasic study was undertaken to ...
    • Uncrowding R 136 from VLT/SPHERE extreme adaptive optics 
      Khorrami, Z.; Vakili, F. F.; Lanz, T.; Langlois, M.; Lagadec, E.; Meyer, M. R.; Robbe Dubois, S.; Abe, L.; Avenhaus, H.; Beuzit, J. L.; Ramos, J. (EDP Sciences, 2017)
      This paper presents the sharpest near-IR images of the massive cluster R136 to date, based on the extreme adaptive optics of the SPHERE focal instrument implemented on the ESO Very Large Telescope and operated in its IRDIS ...
    • Under and over demand and the use of personal health services: the problem of differential accessibility 
      Pereda, (1976)
      A questionnaire applied to a population sample allowed for the determination of values for each person on two scales: one measuring predisposition to assume the users' role and the other perception of possibility of use. ...
    • Under five and infant mortality in Chile (1990-2016): trends, disparities, and causes of death 
      Aguilera, Ximena; Delgado, Iris; Icaza, Gloria; Apablaza, Mauricio; Villanueva Pabón, Loreto; Castillo Laborde, Carla (Public Library Science, 2020)
      Background Child health has been a health policy priority for more than a century in Chile. Since 2000, new health and intersectoral interventions have been implemented. However, no recent analyses have explored child ...
    • Under the influence of the environment: Children’s responding invigorated and biased by predictive cues 
      Alarcón, Daniel E.; Bonardi, Charlotte (Elsevier, 2020)
      Cues that signal motivationally significant consequences can elevate responding and bias choice. A task known as Pavlovian-to-instrumental transfer (PIT) has been used to assess the influence of these cues on independently ...
    • Underemployment and Queues for Full Time Jobs: Evidence from Chile 
      Puentes E, Esteban; González, Alejandro; Jaar Michea, Daniel (Universidad de Chile, Facultad de Economía y Negocios, 2016)
      This article develops a double selection model in order to test whether part-time workers are excluded from full time jobs (underemployed) or choose to put themselves into distinct labour market segments. Results show ...
    • Undergraduate teaching of evolution in Chile: More than natural selection 
      Ahumada, Patricio; Astorga, Guadalupe; Bull-Hereñu, Kester; Cabrera Paucar, Ricardo; Caputo, Luciano; Carmona, Carlos; Cecchi, M. Claudia; Cortés, Nelson; Cortez, Soledad; Dorador, Cristina; Fredes, Felipe; Guerrero Bosagna, Carlos; Henny, Pablo; Libedinsky, Camilo; Marcelo, (Sociedad de Biologia de Chile, 2005)
    • The underluminous Type Ia supernova 2005bl and the class of objects similar to SN 1991bg 
      Taubenberger, S.; Hachinger, S.; Pignata Libralato, Giuliano; Mazzali, Paolo; Contreras, C.; Valenti, S.; Pastorello, A.; Elias Rosa, L.; Bärnbantner, O.; Barwig, H.; Benetti, S.; Dolci, M.; Fliri, J.; Folatelli, Gastón; Freedman, W. L.; González, S.; Hamuy Wackenhut, Mario; Krzeminski, W.; Morrell, N.; Navasardyan, H.; Persson, S. E.; Phillips, M. M.; Ries, C.; Roth, M.; Suntzeff, Nicholas B.; Turatto, M.; Hillebrandt, W. (2008)
      Optical observations of the Type Ia supernova (SN Ia) 2005bl in NGC 4070, obtained from −6 to +66 d with respect to the B-band maximum, are presented. The photometric evolution is characterized by rapidly declining light ...
    • Undernutrition is undernourished 
      Uauy Dagach-Imbarack, Ricardo (Cambridge University Press, 2008-06)
    • Underparking, tu bici segura 
      Chacin Riera, Alejandro; Franzoy Lovece, Matías (Universidad de Chile, 2019-08)
      El plan de negocio consiste en un estacionamiento de bicicletas automatizado y subterráneo, ubicado en l a comuna de Santiago Centro, que atiende l a necesidad de estacionar bicicletas de manera segura y con ubicación ...
    • Understanding a volcano through a droplet: A melt inclusion approach 
      Cannatelli, Claudia; Doherty, A. L.; Esposito, R.; Lima, A.; De Vivo, B. (Elsevier, 2016)
      This review paper is intended to be a guideline to novices on how to conduct research on silicate melt inclusions in volcanic environments, which analytical techniques are more suitable to gather the desired data and the ...
    • Understanding Alstroemeria pallida flower colour: links between phenotype, anthocyanins and gene expression 
      Donoso Núñez, Amanda; Rivas Quevedo, Constanza; Zamorano Carrasco, Álan; Peña Neira, Álvaro; Handford, Michael; Aros Orellana, Danilo (MDPI, 2021)
      Flower colour is mainly due to the accumulation of flavonoids, carotenoids and betalains in the petals. Of these pigments, flavonoids are responsible for a wide variety of colours ranging from pale yellow (flavones, flavonols ...
    • Understanding and addressing exhibitionism in Java empirical research about method accessibility 
      Vidal, Santiago A.; Bergel, Alexandre; Marcos, Claudia; Díaz Pace, J. Andrés (Springer, 2016-03)
      Information hiding is a positive consequence of properly defining component interfaces. Unfortunately, determining what should constitute a public interface remains difficult. We have analyzed over 3.6 million lines of ...
    • UNDERSTANDING AND PREDICTING EFFECTS OF MODIFIED INTERACTIONS THROUGH A QUALITATIVE ANALYSIS OF COMMUNITY STRUCTURE 
      Dambacher, Jeffrey M.; Ramos Jiliberto, Rodrigo (University of Chicago, 2007-09)
      Models of ecological communities are traditionally based on relationships between pairs of species, where the strengths of per capita interactions are fixed and independent of population abundance. A growing body of ...