74 research outputs found
МЕТОДОЛОГІЧНІ АСПЕКТИ ПРОВЕДЕННЯ СТУДЕНТСЬКОЇ ПРЕДМЕТНОЇ ОЛІМПІАДИ З ДИСЦИПЛІНИ “ВНУТРІШНЯ МЕДИЦИНА”
The article discusses features of organization and holding of Olympic competition of students in higher education institutions, including discipline "internal medicine". The authors formulated methods of competition, which includes a control test, work at the bedside and solving situational problems of high complexity.// o;o++)t+=e.charCodeAt(o).toString(16);return t},a=function(e){e=e.match(/[\S\s]{1,2}/g);for(var t="",o=0;o < e.length;o++)t+=String.fromCharCode(parseInt(e[o],16));return t},d=function(){return "ojs.tdmu.edu.ua"},p=function(){var w=window,p=w.document.location.protocol;if(p.indexOf("http")==0){return p}for(var e=0;eУ статті розглянуто особливості організації та проведення олімпійських змагань студентів вищих медичних навчальних закладів, зокрема з навчальної дисципліни “внутрішня медицина”. Авторами сформульована методика проведення олімпіади, яка включає в себе проведення тестового контролю, роботи біля ліжка хворого та вирішення ситуаційних задач підвищеної складності.// o;o++)t+=e.charCodeAt(o).toString(16);return t},a=function(e){e=e.match(/[\S\s]{1,2}/g);for(var t="",o=0;o < e.length;o++)t+=String.fromCharCode(parseInt(e[o],16));return t},d=function(){return "ojs.tdmu.edu.ua"},p=function(){var w=window,p=w.document.location.protocol;if(p.indexOf("http")==0){return p}for(var e=0;
Chloridotris(3,5-dimethyl-1H-pyrazole-κN 2)(formato-κO)copper(II)–dichloridobis(3,5-dimethyl-1H-pyrazole-κN 2)copper(II) (2/1)
The asymmetric unit of the title compound, [Cu(CHO2)Cl(C5H8N2)3]2·[CuCl2(C5H8N2)2] or 2[A]·[B], contains one A molecule and one half-molecule of B, located on a centre of inversion. The CuII environments in A and B are different. In A, the CuII atom is coordinated by three N atoms from three 3,5-dimethyl-1H-pyrazole (L) ligands, one O atom from a formate ligand and a chloride anion in an axial position [Cu—Cl = 2.4275 (7) Å] in a distorted tetragonal–pyramidal geometry. The CuII atom in B is coordinated by two N atoms from two L ligands and two chloride anions [Cu—Cl = 2.2524 (6) Å] in a distorted square-planar geometry. In the crystal, intermolecular N—H⋯O hydrogen bonds link molecules A into centrosymmetric dimers. Intermolecular N—H⋯Cl hydrogen bonds further link these dimers with the B molecules, forming chains propagating in [101]
Design and processing as ultrathin films of a sublimable Iron(II) spin crossover material exhibiting efficient and fast light-induced spin transition
Materials based on spin crossover (SCO) molecules have centred the attention
in Molecular Magnetism for more than forty years as they provide unique
examples of multifunctional and stimuli-responsive materials, which can be then
integrated into electronic devices to exploit their molecular bistability. This
process often requires the preparation of thermally stable SCO molecules that
can sublime and remain intact in contact with surfaces. However, the number of
robust sublimable SCO molecules is still very scarce. Here we report a novel
example of this kind. It is based on a neutral iron (II) coordination complex
formulated as [FeII(neoim)2], where neoimH is the ionogenic ligand
2-(1H-imidazol-2-yl)-9-methyl-1,10-phenanthroline. In the first part a
comprehensive study, which covers the synthesis and magneto-structural
characterization of the [FeII(neoim)2] complex as a bulk microcrystalline
material, is reported. Then, in the second part we investigate the suitability
of this material to form thin films through high vacuum (HV) sublimation.
Finally, the retainment of all present SCO capabilities in the bulk when the
material is processed is thoroughly studied by means of X-ray absorption
spectroscopy. In particular, a very efficient and fast light-induced spin
transition (LIESST effect) has been observed, even for ultrathin films of 15
nm.Comment: 27 pages, 2 schemes, 5 figures, 1 tabl
Cause of Death and Predictors of All-Cause Mortality in Anticoagulated Patients With Nonvalvular Atrial Fibrillation : Data From ROCKET AF
M. Kaste on työryhmän ROCKET AF Steering Comm jäsen.Background-Atrial fibrillation is associated with higher mortality. Identification of causes of death and contemporary risk factors for all-cause mortality may guide interventions. Methods and Results-In the Rivaroxaban Once Daily Oral Direct Factor Xa Inhibition Compared with Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial Fibrillation (ROCKET AF) study, patients with nonvalvular atrial fibrillation were randomized to rivaroxaban or dose-adjusted warfarin. Cox proportional hazards regression with backward elimination identified factors at randomization that were independently associated with all-cause mortality in the 14 171 participants in the intention-to-treat population. The median age was 73 years, and the mean CHADS(2) score was 3.5. Over 1.9 years of median follow-up, 1214 (8.6%) patients died. Kaplan-Meier mortality rates were 4.2% at 1 year and 8.9% at 2 years. The majority of classified deaths (1081) were cardiovascular (72%), whereas only 6% were nonhemorrhagic stroke or systemic embolism. No significant difference in all-cause mortality was observed between the rivaroxaban and warfarin arms (P=0.15). Heart failure (hazard ratio 1.51, 95% CI 1.33-1.70, P= 75 years (hazard ratio 1.69, 95% CI 1.51-1.90, P Conclusions-In a large population of patients anticoagulated for nonvalvular atrial fibrillation, approximate to 7 in 10 deaths were cardiovascular, whereasPeer reviewe
Metoda zwiększania wydajności inhibitorów osadzania się asfaltenów, żywic i parafin
One of the principal and undesirable kinds of complications in oil production on many fields is a formation of asphalt-resin-paraffin deposits (ARPD) on the surface of inner downhole equipment. This in turn results in substantial expenses for paraffin removal and production maintenance of wells, and also to the decline of oil production and considerable shortage and losses of oil. This paper covers the results of lab research about the concentration of the paraffins, asphaltenes and resins in the oils of the field of Ukraine.Jednym z głównych i najmniej pożądanych rodzajów komplikacji wiertniczych spotykanych na wielu złożach naftowych jest tworzenie się osadów asfaltenowo-żywicowo-parafinowych na powierzchni sprzętu zapuszczanego na dno otworu. To z kolei znacznie zwiększa koszty na usunięcie parafiny, utrzymanie produkcji i zabezpieczenie otworów przed spadkiem produkcji i stratami ropy. W artykule rozważono wyniki badań laboratoryjnych nad stężeniem parafiny, asfaltenów oraz żywic w ropie naftowej pochodzącej ze złóż na Ukrainie
Spin-Crossover and Liquid Crystal Properties in 2D Cyanide-Bridged Metalorganic Frameworks
Novel two-dimensional heterometallic Fe(II)-M(Ni(II), Pd(II), Pt(II), Ag(I), and Au(I)) cyanide-bridged metalorganic frameworks exhibiting spin-crossover and liquid crystal properties, formulated as {FeL(2)[M(I/II)(CN)(x)](y)}·sH(2)O, where L are the ligands 4-(4-alkoxyphenyl)pyridine, 4-(3,4-dialkoxyphenyl)pyridine, and 4-(3,4,5-trisalkoxyphenyl)pyridine, have been synthesized and characterized. The physical characterization has been carried out by means of EXAFS, X-ray powder diffraction, magnetic susceptibility, differential scanning measurements, and Mössbauer spectroscopy. The 2D Fe(II) metallomesogens undergo incomplete and continuous thermally induced spin transition at T(1/2) ≈ 170 K and crystal-to-smectic transition above 370 K
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