147 research outputs found

    Diabetic ketoacidosis with mild hyperglycemia associated with the use of canagliflozin. Report of one case with type 1 diabetes

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    Indexación: Web of Science; Scopus; Scielo.Diabetic ketoacidosis with mild hyperglycemia is a major complication of sodium-glucose cotransporter 2 inhibitors. Although its use is not approved for patients with type 1 diabetes mellitus, the drug is often prescribed with the hope of optimizing metabolic control. We report a 20 years old female with hypo-thyroidism and type 1 diabetes consulting for vomiting and abdominal pain. The patient had used canagliflozin during the two previous months. Laboratory showed a blood glucose of 200 mg/dl, a severe metabolic acidosis (pH 7.1) and ketonemia. The patient was successfully treated in the intensive care unit.http://ref.scielo.org/65brd

    Hamiltonian submanifolds of regular polytopes

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    We investigate polyhedral 2k2k-manifolds as subcomplexes of the boundary complex of a regular polytope. We call such a subcomplex {\it kk-Hamiltonian} if it contains the full kk-skeleton of the polytope. Since the case of the cube is well known and since the case of a simplex was also previously studied (these are so-called {\it super-neighborly triangulations}) we focus on the case of the cross polytope and the sporadic regular 4-polytopes. By our results the existence of 1-Hamiltonian surfaces is now decided for all regular polytopes. Furthermore we investigate 2-Hamiltonian 4-manifolds in the dd-dimensional cross polytope. These are the "regular cases" satisfying equality in Sparla's inequality. In particular, we present a new example with 16 vertices which is highly symmetric with an automorphism group of order 128. Topologically it is homeomorphic to a connected sum of 7 copies of S2×S2S^2 \times S^2. By this example all regular cases of nn vertices with n<20n < 20 or, equivalently, all cases of regular dd-polytopes with d9d\leq 9 are now decided.Comment: 26 pages, 4 figure

    Hydrodynamic bubble coarsening in off-critical vapour-liquid phase separation

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    Late-stage coarsening in off-critical vapour-liquid phase separation is re-examined. In the limit of bubbles of vapour distributed throughout a continuous liquid phase, it is argued that coarsening proceeds via inertial hydrodynamic bubble collapse. This replaces the Lifshitz-Slyozov-Wagner mechanism seen in binary liquid mixtures. The arguments are strongly supported by simulations in two dimensions using a novel single-component soft sphere fluid.Comment: 5 pages, 3 figures, revtex3.

    Towards Better Integrators for Dissipative Particle Dynamics Simulations

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    Coarse-grained models that preserve hydrodynamics provide a natural approach to study collective properties of soft-matter systems. Here, we demonstrate that commonly used integration schemes in dissipative particle dynamics give rise to pronounced artifacts in physical quantities such as the compressibility and the diffusion coefficient. We assess the quality of these integration schemes, including variants based on a recently suggested self-consistent approach, and examine their relative performance. Implications of integrator-induced effects are discussed.Comment: 4 pages, 3 figures, 2 tables, accepted for publication in Phys. Rev. E (Rapid Communication), tentative publication issue: 01 Dec 200

    Evaluation of supramolecular complex of fenbendazole effect on embryonic development

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    The purpose of the research is to study the embryotropic effect of supramolecular complex of fenbendazole (SMСF).Materials and methods. The experiment to assess the embryotropic properties of SMCF was carried out on 40 white female and 20 male rats in accordance with the Guidelines for the experimental (preclinical) study of new pharmacological substances. Pregnant female rats were divided into 3 experimental and one control groups. SMCF was administered intragastrically on the 1–6 days of embryogenesis (group 1); on the 7–14 days (group 2) and on the 15–19 days (group 3) in three times therapeutic dose – 6,0 mg/kg of active substance. The animals of the control group received saline from the first to the 19th days of pregnancy. Rats were euthanized on the 20th day of pregnancy. The uterus with fetuses was removed after laparotomy, the number of corpora lutea, implantation sites, the number of living, dead and resorbed fetuses were recorded, the weight and diameter of the placenta were determined. The embryos were examined, weighed, the craniocaudal sizes were determined, the levels of total embryonic, preimplantation and postimplantation embryo death were calculated. The fetuses were examined for abnormalities of internal organs and changes in the skeletal system according to the methods of J. G. Wilson (1965) and A. B. Dawson (1926), modified in the department of embryology of the IEM of the USSR Academy of Medical Sciences.Results and discussion. As a result, SMCF does not induce toxic effects on the fetus: mortality rates, size and weight of embryos were at the level of the control group in a threefold therapeutic dose 6,0 mg/kg at intragastric administration on the 1–6; 7–14 and 15–19 days of pregnancy. SMCF did not cause external and internal malformations

    Vapour-liquid coexistence in many-body dissipative particle dynamics

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    Many-body dissipative particle dynamics is constructed to exhibit vapour-liquid coexistence, with a sharp interface, and a vapour phase of vanishingly small density. In this form, the model is an unusual example of a soft-sphere liquid with a potential energy built out of local-density dependent one-particle self energies. The application to fluid mechanics problems involving free surfaces is illustrated by simulation of a pendant drop.Comment: 8 pages, 6 figures, revtex

    Triangulations and Severi varieties

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    We consider the problem of constructing triangulations of projective planes over Hurwitz algebras with minimal numbers of vertices. We observe that the numbers of faces of each dimension must be equal to the dimensions of certain representations of the automorphism groups of the corresponding Severi varieties. We construct a complex involving these representations, which should be considered as a geometric version of the (putative) triangulations

    ПЕРЕНОСИМОСТЬ ПРЕПАРАТА АВЕРТЕЛЬ НА СОБАКАХ В УСЛОВИЯХ СУБХРОНИЧЕСКОГО ОПЫТА

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    Materials and methods. The results of experiments on 15 dogs showed the effect of Avertel (used at therapeutic and triple doses) on clinical status, hematological and clinical parameters. The drug was injected to dogs daily within 7 days with 24-hour interval subconsciously at a therapeutic dose of 1 ml/kg or 0,5 mg/kg of aversectine C1 and 5 mg/kg of praziquantel and at a triple dose (0,3 ml/kg – 1,5 mg/kg aversectine C1 and 15 mg/kg of praziquantel). Results and discussion. Before injection and 1,5 and 10 days after the last injection the blood samples were collected to determine the hematological and biochemical parameters. The results of observation of general health status and behavior of dogs as well as the clinical, hematological and biochemical parameters serve as evidence of good tolerance of preparation used at the recommended therapeutic and increased doses.В опытах на 15 собаках изучено влияние авертеля в терапевтической и трехкратно повышенной дозах на клиническое состояние, гематологические и клинические показатели. Препарат вводили собакам подкожно в терапевтической (0,1 мл/кг – 0,5 мг/кг по аверсектину С1 и 5 мг/кг по празиквантелу) и трехкратной (0,3 мл/кг – 1,5 мг/кг по аверсектину С1 и 15 мг/кг по празиквантелу) терапевтической дозах ежедневно в течение 7 сут с интервалом 24 ч. До введения препарата и через 1, 5 и 10 сут после последнего введения отбирали пробы крови для определения гематологических и биохимических показателей. Результаты наблюдений за общим состоянием и поведением собак, данные определения клинических, гематологических и биохимических показателей свидетельствуют о хорошей переносимости препарата в рекомендованной терапевтической и повышенной дозах

    Spin-Hall effect and spin-Coulomb drag in doped semiconductors

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    In this review, we describe in detail two important spin-transport phenomena: the extrinsic spin-Hall effect (coming from spin-orbit interactions between electrons and impurities) and the spin-Coulomb drag. The interplay of these two phenomena is analyzed. In particular, we discuss the influence of scattering between electrons with opposite spins on the spin current and the spin accumulation produced by the spin-Hall effect. Future challenges and open questions are briefly discussed.Comment: Topical revie
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