Browsing by Title Facultad de Ciencias
Now showing items 3738-3757 of 8178
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(Elsevier, 2020)The enhanced green fluorescent protein (eGFP) is one of the most employed variants of fluorescent proteins. Nonetheless little is known about the oxidative modifications that this protein can undergo in the cellular ...
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(American Chemical Society, 1989-09-28)We present a theoretical treatment for the Helmholtz free energy of an arbitrary discrete charge distribution in a central prolate or oblate spheroidal cavity surrounded by two and three concentric dielectric continua of ...
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(Public Library of Science, 2017)Chimerism occurs when two genetically distinct conspecific individuals fuse together generating a single entity. Coalescence and chimerism in red seaweeds has been positively related to an increase in body size, and the ...
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(2007)Fisheries of the Altiplano, dating from 1500 to 2000 BC, are active in the Andean inter-montane plateau that extends from Ancash, Peru, to Antofagasta, Chile, at altitudes above 3600 m. The ancient and remote nature of ...
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(Elsevier, 2020)We describe remains of freshwater turtles from the Upper Cretaceous of Chilean Patagonia. The fossils, which comprise isolated shell fragments and incomplete appendicular bones, were recovered from meandering fluvial ...
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(1991)From the aerial parts of Haplopappus pulchellus two new labdanes and six friedolabdanes were isolated while H. arbutoides afforded in addition to known labdanes five new ones, two clerodanes and a cyperone derivative. ...
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(BioMed Central Ltd., 2016)© 2016 Mardones et al. Background: In the adult hippocampus new neurons are continuously generated from neural stem cells (NSCs) present at the subgranular zone of the dentate gyrus. This process is controlled by Wnt ...
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(2013)The Wnt signaling pathway plays important roles during different stages of neuronal development, including neuronal polarization and dendritic and axonal outgrowth. However, little is known about the identity of the ...
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(Academic Press Inc., 2003)Frog oocyte glycogen synthase properties differ significantly under in vitro or in vivo conditions. The Kmapp for UDP-glucose in vivo was 1.4mM (in the presence or absence of glucose-6-P). The in vitro value was 6mM and ...
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(Taylor and Francis Inc., 2001)This review is intended to illustrate how live frog oocytes may be advantageously used to address the study of some problems of in vivo glucose metabolism. Glucose microinjected into the cells is preferentially committed ...
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(Elsevier, 2018-08)Historically, ROS have been considered toxic molecules, especially when their intracellular concentration reaches high values. However, physiological levels of ROS support crucial cellular processes, acting as second ...
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(BMC, 2020)Background With more than 30,000 species, teleosts comprise about half of today's living vertebrates, enriched with a wide set of adaptations to all aquatic systems. Their evolution was marked by modifications of their ...
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(2001)We calculate thermodynamic properties of a disordered model insulator, starting from the ideal simple-cubic lattice (g = 0) and increasing the disorder parameter g to » 1/2. As in the earlier Einstein and Debye approximations, ...
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(2011)The nature of life has been a topic of interest from the earliest of times, and efforts to explain it in mechanistic terms date at least from the 18th century. However, the impressive development of molecular biology since ...
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(ELSEVIER SCI LTD, 2005-12)S-Nicotine, the principal psychoactive constituent of Nicotiana tabacum, underpins addiction to tobacco smoking. Although tobacco consumption is a leading cause of death worldwide, nicotine itself is also proposed to have ...
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(Frontiers Media, 2021)Commerson's dolphins (Cephalorhynchus commersonii) are separated into the subspecies C. c. commersonii, found along southern South America (SA) and the Falkland Islands/Islas Malvinas (FI/IM), and C. c. kerguelenensis, ...
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(Universidad de Chile, 2022)In the case of astronomical observations, it is useful to work with new methods that are effective to complement the characterization of systems for which only limi ted information is available. The generality of the ...
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(Universidad de Chile, 1985)
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(Sociedad Chilena de Quimica, 2001)HOMO and LUMO energies from a 6-31G** full geometry optimization of a series of 7 cyclic hydroxamic acid derivatives were calculated. According to the LUMO energy, the molecules can be classified as hard electrophiles ...
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(Universidad de Chile, 1985)
