52 research outputs found
Unusual microwave response and bulk conductivity of very thin fese0.3te0.7 films as a function of temperature
Results of X-band microwave surface impedance measurements of FeSe1-xTex very
thin film are reported. The effective surface resistance shows appearance of
peak at T less and near Tc when plotted as function of temperature. The authors
suggests that the most well-reasoned explanation can be based on the idea of
the changing orientation of the microwave magnetic field at a SN phase
transition near the surface of a very thin film. The magnetic penetration depth
exhibits a power-law behavior of delta lambda proportional to T with an
exponent n = 2.4 at low temperatures, which is noticeably higher than in the
published results on FeSe1-xTexsingle crystal. However the temperature
dependence of the superfluid conductivity remains very different from the
behavior described by the BCS theory. Experimental results are fitted very well
by a two-gap model with delta1/kTc=0.43 and delta2/kTc=1.22,thus supporting
s(+-)- wave symmetry. The rapid increase of the quasiparticle scattering time
is obtained from the microwave impedance measurements.Comment: 13 pages, 13 figure
Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe0.926Co0.074)2As2 single crystal
In-plane surface Ka-band microwave impedance of optimally doped single
crystals of the Fe-based superconductor Ba(Fe0.926Co0.074)2As2 (Tc= 22.8K) was
measured. Sensitive sapphire disk quasi-optical resonator with high-Tc cuprate
conducting endplates was developed specially for Fe-pnictide superconductors.
It allowed finding temperature variation of London penetration depth in a form
of power law, namely \Delta \lambda (T)~ Tn with n = 2.8 from low temperatures
up to at least 0.6Tc consisted with radio-frequency measurements. This exponent
points towards nodeless state with pairbreaking scattering, which can support
one of the extended s-pairing symmetries. The dependence \lambda(T) at low
temperatures is well described by one superconducting small-gap (\Delta \cong
0.75 in kTc units, where k is Boltzman coefficient) exponential dependence.Comment: 6 pages, 2 figures, to be published in Low Temperature
Physics,vol.37, August 201
Polarization observables in high-energy deuteron photodisintegration within the Quark-Gluon Strings Model
Deuteron two-body photodisintegration is analysed within the framework of the
Quark-Gluon Strings Model. The model describes fairly well the recent
experimental data from TJNAF in the few GeV region. Angular distributions at
different -energies are presented and the effect of a forward-backward
asymmetry is discussed. New results from the QGSM for polarization observables
from 1.5 -- 6 GeV are presented and compared with the available data.Comment: 3 pages, LaTeX, 4 postscript figures; contribution to QNP2002,
Juelich, June 10-14, 200
meson production in = 200 GeV Au+Au and pp collisions at RHIC
We present the results for the measurement of meson production in
= 200 GeV Au+Au and pp collisions at the Relativistic Heavy Ion
Collider (RHIC). Using the event mixing technique, spectra and yields are
obtained from the decay channel for different centrality
bins in Au+Au collisions and in pp collisions. We observe that the spectrum
shape in Au+Au collisions depends weakly on the centrality and the shape of the
spectrum in pp collisions is significantly different from that in Au+Au
collisions. In Au+Au collisions, the extracted yield of meson is flat as
a function of rapidity; The of , extracted from the fit function
to the spectra, shows a different behavior as a function of centrality than
that of , and Comment: Proceedings for the 7th International Conference on Strangeness in
Quark Matte
Clinical and statistical aspects of gastrointestinal bleeding course in patients with cardiovascular system pathology.
We have collected, processed and analyzed the results of treatment of 329 patients with gastrointestinal bleedings in which the course of the underlying disease is aggravated by the pathology of the cardiovascular system, in Communal institution "Dnipro Clinical Emergency Care Association" of Dnipro City Council» in the period for 2017. First, the frequency of background diseases was determined, chronic pathology being 93.4%. Ischemic heart disease (IHD): cardiosclerosis of various origins (post-infarction, diffuse, atherosclerotic), hypertonic disease (HD) - HD-I, HD-II, HD-III are the most common, while acute disorders of cerebral circulation, the state after coronary artery bypass surgery, renal artery bypass, arrhythmias, acute myocardial infarction made up 16 (5%), 1 (0.3%), 3 (1%), 1 (0.3%), respectively. Secondly, the quality of endoscopic hemostasis in case of ulcerative bleeding from the stomach, duodenum, gastroenteroanastomosis, was assessed by Forrest classification, connecting the results with the accompanying pathology of the cardiovascular system. We found that active bleeding F I was determined in 24 people (7.3%), of which F Ia – in 14 (4.3%), F Ib – in 10 (3%). Unstable hemostasis with a high risk of recurrent F II bleeding, was observed in 251 patients, which makes up 76.2%, and F III – in 54 (16.5%). The degree of blood loss was directly influenced by drug – anticoagulants, antiplatelet agents, hypotensive drugs, as well as their combinations, aimed at correcting the rheological properties of blood. Depending on the degree of blood loss, the quality of hemostasis, the general condition of the patient, the treatment tactics for this cohort of patients was determined. 313 patients received conservative treatment, which made up 95.1%. 16 patients were operated. Postoperative mortality is 12,5%. The overall mortality of the above cohort is 10%
The local antibiotic therapy efficiency ground for the complex treatment of patients suffering from chronic generalized periodontitis
The polymorphisms of TNF-αgene in G(-308)→A in patients suffering from chronic generalized periodontitis were studied in connection with the local antibiotic therapy of periodontal tissues efficiency. The conducted course of antibiotic treatment ,that was administered with a glance for periodontal pocket microflora sensitivity to antibiotics, was established to be less effective in the patients suffering from chronic generalized periodontitis and being carriers of pathological polymorphisms «G / G» and «G / A» than in patients with chronic generalized periodontitis, carriers of the polymorphism A / A.Изучены полиморфизмы гена TNF-a при G(-308)→ A у больных хроническим генерализованным пародонтитом в ассоциации с эффективностью местной антибактериальной терапией тканей пародонта. Было выявлено, что у больных хроническим генерализованным пародонтитом, являющихся носителями патологических полиморфизмов «G/G» и «G/A», проводимое антибактериальное лечение, назначаемое с учётом чувствительности микрофлоры пародонтального кармана к антибиотикам, менее эффективно, чем у больных хроническим генерализованным пародонтитом, являющимися носителями полиморфизма а/а
Половой диморфизм структурно-функциональных изменений мозга в раннем постреанимационном периоде после остановки сердца
The investigation was undertaken to study early postresuscitative sexual differences in cerebral structural and functional changes 12 min after cardiac arrest in albino rats. There were great sexual differences in orientative-investigating behavior and anxiety before, as well as neurological recovering processes after clinical death, without distinctions in cardiopul-monary resuscitative processes and postresuscitative mortality. Common changes in the content of peptide substances having a molecular weight of as high as 5 kDa in the brain tissue and gender-associated features were revealed in the early postoperative period. The baseline increased behavioral activity and a rapid postresuscitative recovery of females, unlike males, are associated with the early postresuscitative development of neurodystrophic and degenerative changes in the neuronal populations of the hippocampus and cerebellum.Цель работы — изучение половых различий структурно-функциональных изменений мозга в раннем постреанимационном периоде после 12-мин остановки сердца у белых крыс. Установлены выраженные половые различия ориентировочно-исследовательского поведения и тревожности до опыта, а так же процессов восстановления неврологического статуса после клинической смерти при отсутствии отличий в процессах сердечно-легочной реанимации и постреанимационной летальности. В раннем постреанимационном периоде выявлены общие изменения содержания веществ пептидной природы с молекулярной массой до 5 кДа в ткани мозга и особенности, связанные с полом. Исходно повышенная поведенческая активность и быстрое постреанимационное восстановление самок по сравнению с самцами сопряжены с ранним развитием после оживления нейродистрофических и дегенеративных изменений нейронных популяций гиппокампа и мозжечка
Методичні рекомендації
Методичні рекомендації щодо особливостей застосування застави та інших запобіжних заходів відповідно до вимог, передбачених Кримінальним процесуальним кодексом України / Голубов А. Є., Юхно О. О., Балац Р. М. та ін. // Актуальні питання діяльності слідчих підрозділів органів внутрішніх справ України : зб. наук. пр. ф-ту підгот. слідчих за 2012 рік / за заг. ред. С.М. Гусарова, О.М. Бандурки. – Харків: Диса плюс, 2013. – С. 76-121.У методичних рекомендаціях розглянуто особливості застосування застави та інших запобіжних заходів щодо підозрюваної особи на стадії проведення досудового розслідування. Надано зразки процесуальних документів відповідно до вимог, передбачених Кримінальним процесуальним кодексом України 2012 р.In the guidelines, the specifics of the use of collateral and other measures for the suspect at the stage of pre-trial investigation are considered. Provided samples of procedural documents in accordance with the requirements foreseen by the 2012 Criminal Procedure Code of Ukraine.В методических рекомендациях рассмотрены особенности применения залога и других мер пресечения к подозреваемому на стадии проведения досудебного расследования. Предоставлены образцы процессуальных документов согласно требованиям, предусмотренным Уголовно-процессуальным кодексом Украины 2012 г
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