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Now showing items 28052-28071 of 57604
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Iron Minerals Within Specific Microfossil Morphospecies of the 1.88 Ga Gunflint Formation
(Springer Science and Business Media LLC, 2017-03-23)Problematic microfossils dominate the palaeontological record between the Great Oxidation Event 2.4 billion years ago (Ga) and the last Palaeoproterozoic iron formations, deposited 500–600 million years later. These fossils ... -
Iron Nutrition, Hematologic Status and Infections in Tanzan
(2021-09-21)Background Disordered iron metabolism underlies the pathogenesis of iron deficiency, anemia of inflammation and elevated iron status. These iron disorders are common and they are associated with important consequences ... -
Iron Replacement in Patients with Inflammatory Bowel Disease – A Systematic Review and Meta-Analysis
(Oxford University Press (OUP), 2015-08)Background A number of controlled trials and prospective studies have compared intravenous (IV) to oral (PO) iron for the treatment of IDA, with mixed results. Methods We conducted a systematic review of trials ... -
An Iron Shuttle for Deepwater Silica in Late Archean and Early Paleoproterozoic Iron Formation
(Geological Society of America, 2009)Iron formations are typically thinly bedded or laminated sedimentary rocks containing 15% or more of iron and a large proportion of silica (commonly > 40%). In the ca. 2590-2460 Ma Campbellrand-Kuruman Complex, Transvaal ... -
Iron Status Predicts Treatment Failure and Mortality in Tuberculosis Patients: A Prospective Cohort Study from Dar es Salaam, Tanzania
(Public Library of Science, 2012)Background: Experimental data suggest a role for iron in the course of tuberculosis (TB) infection, but there is limited evidence on the potential effects of iron deficiency or iron overload on the progression of TB disease ... -
Iron Supplementation Affects Hematologic Biomarker Concentrations and Pregnancy Outcomes among Iron-Deficient Tanzanian Women
(Oxford University Press, 2016)Background: Iron deficiency is a highly prevalent micronutrient abnormality and the most common cause of anemia globally, worsening the burden of adverse pregnancy and child outcomes. Objective: We sought to evaluate the ... -
Iron supplementation and paediatric HIV disease progression: a cohort study among children receiving routine HIV care in Dar es Salaam, Tanzania
(Oxford University Press (OUP), 2022-02-15)Abstract Background Anaemia is common among HIV-infected children and iron supplementation is prescribed routinely for the prevention and management of anaemia among children. Limited evidence suggests iron supplementation ... -
Iron Supplementation in Iron-Replete and Nonanemic Pregnant Women in Tanzania: A Randomized Clinical Trial
(American Medical Association, 2015)IMPORTANCE Anemia is common in pregnancy and increases the risk of adverse outcomes. Iron deficiency is a leading cause of anemia in sub-Saharan Africa, and iron supplementation is the standard of care during pregnancy; ... -
Iron-Catalyzed 1,4-Hydroboration of 1,3-Dienes
(American Chemical Society, 2009)A chemo-, regio-, and stereoselective iron-catalyzed 1,4-hydroboration of dienes that affords γ-disubstituted allylboranes has been developed. 1,4-Hydroboration of 2-substituted dienes forms allylborane products with ... -
Iron-Catalyzed Polymerization of Isoprene and Other 1,3-Dienes
(Wiley Blackwell (John Wiley & Sons), 2012) -
Iron-mediated intermolecular N-group transfer chemistry with olefinic substrates
(Royal Society of Chemistry (RSC), 2014)The dipyrrinato iron catalyst reacts with organic azides to generate a reactive, high-spin imido radical intermediate, distinct from nitrenoid or imido species commonly observed with low-spin transition metal complexes. ... -
Iron-Responsive Olfactory Uptake of Manganese Improves Motor Function Deficits Associated with Iron Deficiency
(Public Library of Science, 2012)Iron-responsive manganese uptake is increased in iron-deficient rats, suggesting that toxicity related to manganese exposure could be modified by iron status. To explore possible interactions, the distribution of ... -
The Ironic Effects of Motivational Tools on Attention and Decision Making
(2016-05-02)Decision makers often display bounded awareness – a tendency to miss or overlook easily accessible, critical information and contextual cues – and make suboptimal decisions. In popular parlance, these defective attentional ... -
An Ironing-Based Approach to Adaptive Online Mechanism Design in Single-Valued Domains
(American Association for Artificial Intelligence, 2007)Online mechanism design considers the problem of sequential decision making in a multi-agent system with self-interested agents. The agent population is dynamic and each agent has private information about its value for a ... -
Irony in the tragedies of Racine
(Harvard Library, 1973) -
Irradiated Trajectories: Medical Radiology in Modern Japan
(2016-05-13)This dissertation examines the history of modern Japan via a study of rentogen, or X-rays, in medical practice. Conventional milestones in Japan’s encounters with nuclear science all date from 1945: the atomic bombings of ... -
Irradiation Damage and Semiconducting Properties of \(CdF_2:Eu\)
(American Institute of Physics, 1971)\(Eu^{3+}\) in the insulating \(CdF_2\) host. Optical absorption and EPR measurements of semiconducting \(CdF_2:Eu\) are the bases of a model of this semiconductor. -
Irreconcilable Differences: Judicial Resolution of Business Deadlock
(University of Chicago Press, 2014)This article studies the judicial resolution of business deadlock. Asset valuation, a necessary component of business divorce procedures, can pose serious problems in case of closely-held businesses such as general ... -
The Irreducibility of the Space of Curves of Given Genus
(Springer Verlag, 1969) -
Irregular Bodies: Polyhedral Geometry and Material Culture in Early Modern Germany
(2016-05-18)The dissertation explores the centrality of the Platonic Solids, and polyhedral geometry generally, to the artistic and mixed-mathematical cultures of Renaissance Germany. Beginning with Albrecht Dürer’s groundbreaking ...