Browsing by Title Artículos de revistas
Now showing items 1905-1924 of 4968
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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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(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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(1995)The characterization of fructose-1, 6-bisphosphatase in stage VI oocytes from the frog Caudiverbera caudiverbera, as well as the in vivo activity, is reported. The enzyme has a subunit molecular weight of approximately 43, ...
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(Nature Publishing Group, 2017)© 2017 The Author(s). Plant-animal interactions are strong drivers of phenotypic evolution. However, the extent to which anthropogenic habitat transformation creates new selective scenarios for plant-animal interactions ...
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(2010)Habitat degradation and fragmentation are expected to reduce seed dispersal rates by reducing fruit availability as well as the movement and abundance of frugivores. These deleterious impacts may also interact with each ...
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(2010)Although Rhamnaceae are distributed worldwide today, the former hypothesis for its Laurasian origins may need to be reconsidered in view of recently discovered fossils from the Guaduas Formation of central Colombia (~68 ...
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(1986)A full normal coordinate analysis for the Cr(CN)3− 6 ion, in octahedral symmetry, has been carried out on the basis of new experimental data, using three different force fields. Consistent sets of force constants have been ...
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(Vrije Universiteit Brussel, 2017)
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(Public Library of Science, 2014)Phytoene synthase (PSY) has been shown to catalyze the first committed and rate-limiting step of carotenogenesis in several crop species, including Brassica napus L. Due to its pivotal role, PSY has been a prime target for ...
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(Elsevier, 2020)Carotenoids are plastid isoprenoid pigments that play critical roles in light harvesting, photoprotection, and phytohormone biosynthesis. They are also vitamin-A precursors and antioxidant molecules important for human ...
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(PLOS One, 2014)The yeast Xanthophyllomyces dendrorhous synthesizes the carotenoid astaxanthin, which has applications in biotechnology because of its antioxidant and pigmentation properties. However, wild-type strains produce too low ...
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(BioMed Central, 2016)Background: The basidiomycetous yeast Xanthophyllomyces dendrorhous has been described as a potential biofactory for terpenoid-derived compounds due to its ability to synthesize astaxanthin. Functional knowledge of the ...
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(2004)Research regarding the interactions between the endothelium and immune cells has undergone a significant expansion during the past decade. Major shifts of emphasis have been the norm, from the production of a detail catalog ...