Browsing by Title
Now showing items 261-280 of 92606
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(1970)Dose response, contraceptive efficacy, and menstrual cycle control were tested in 667 normal fertile women using daily oral administration of megestrol acetate (MA) in either an oil solution or a tablet form. The occurrence ...
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(Universidad de Chile, 2005)Since the second half of the twentieth century a significant paradigm shift has taken place in second language education, namely, the shift from positivism to post-positivism, and from behaviourism to cognitivism. In ...
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(Nature Publishing Group, 2018)Every star-forming galaxy has a halo of metal-enriched gas that extends out to at least 100 kiloparsecs(1-3), as revealed by the absorption lines that this gas imprints on the spectra of background quasars(4). However, ...
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(Springer, 2016)The peach [Prunus persica L. (Batsch)] slow ripening (SR) trait is a mutation preventing the normal ripening process. Individuals with this phenotype are discarded in peach breeding programs. This trait is determined by a ...
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(Universidad de Chile. Facultad de Economía y Negocios, 2011-06)In this paper we look at the income distribution by cohort in Chile. We construct a synthetic panel from cross section surveys and estimate the income distribution for cohorts born between 1902 and 1978. We then decompose ...
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(Nature, 2021)The Chile Triple Junction, where the hot active spreading centre of the Chile Rise system subducts beneath the South American plate, offers a unique opportunity to understand the influence of the anomalous thermal regime ...
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(1977)The use of dermatoglyphic traits to describe interpopulational diversity among human populations at various levels of differentiation is compared with similar analysis of gene frequency data by means of nonparametric methods ...
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(Tor Vergata University of Rome, Italia, 2020)The education of first and second graders was the hardest hit by the pandemic. They have to learn to read, which is the biggest learning leap one can take. However, learning to read with a remote teacher is very complex ...
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(Elsevier B.V., 2019)In this paper we formulate an integer programming model for the Location and Routing Problem with Pickup and Delivery. We propose a column generation scheme and implement, for the subproblem, a label-setting algorithm for ...
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(Elsevier, 2016)The high penetration of renewables envisaged for future power systems will significantly increasethe need for flexible operational measures and generation technologies, whose associated investmentdecisions must be properly ...
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(Springer New York LLC, 2019)Due to the high volatility in electricity prices, power-intensive industrial plants often have to frequently shift load in order to remain cost-competitive. Capacity planning is required for assessing the value of additional ...
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(Frontiers Media, 2016)Environmental conditions unsuitable for microbial growth are the rule rather than the exception in most habitats. In response to this, microorganisms have developed various strategies to withstand environmental conditions ...
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(Nature, 2020)Human activities have profoundly altered the global nutrient cycle through Land Use and Cover Changes (LUCCs) since the industrial revolution and especially during the Great Acceleration (1950 CE). Yet, the impact of such ...
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(Royal Society Chemistry, 2017)Liver preconditioning by a docosahexaenoic acid (DHA) and triiodothyronine (T-3) combined protocol underlies peroxisome-proliferator activated receptor alpha (PPAR alpha)-fibroblast growth factor 21 (FGF21) upregulation, ...
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(Springer, 2017)Predicting the rock fragmentation obtained in drawpoints or secondary fragmentation is crucial in Block caving application since many engineering decisions are based on this key variable. These can include drawpoints size ...
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(Elsevier, 2020)This paper discusses component age-related degradation and failure initiated from a shared cause and coupling factor (or mechanism) and the likelihood of the resulting common cause failure (CCF). For these components a CCF ...
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A common conformation of stabilized triphenyl phosphonium ylidic diesters with bulky alkoxy groups (2009)The phosphonium ylidic diesters, methyl and ethyl isopropyl and, methyl and ethyl t-butyl triphenylphosphoranylidene malonates, 1a,b and 2a,b, respectively, have the syn-anti conformation in solution, as in the crystal, ...
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A compact multi-planet system around a bright nearby star from the Dispersed Matter Planet Project (Nature Research, 2020)
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(2010)The European project European and Latin American Systems of Ethics Regulation of Biomedical Research Project (EULABOR) has carried out the first comparative analysis of ethics regulation systems for biomedical research in ...
