The inverse-square interaction phase diagram: unitarity in the bosonic ground state

Ground-state properties of bosons interacting via inverse square potential (three dimensional Calogero-Sutherland model) are analyzed. A number of quantities scale with the density and can be naturally expressed in units of the Fermi energy and Fermi momentum multiplied by a dimensionless constant (Bertsch parameter). Two analytical approaches are developed: the Bogoliubov theory for weak and the harmonic approximation (HA) for strong interactions. Diffusion Monte Carlo method is used to obtain the ground-state properties in a non-perturbative manner. We report the dependence of the Bertsch parameter on the interaction strength and construct a Pad\'e approximant which fits the numerical data and reproduces correctly the asymptotic limits of weak and strong interactions. We find good agreement with beyond-mean field theory for the energy and the condensate fraction. The pair distribution function and the static structure factor are reported for a number of characteristic interactions. We demonstrate that the system experiences a gas-solid phase transition as a function of the dimensionless interaction strength. A peculiarity of the system is that by changing the density it is not possible to induce the phase transition. We show that the low-lying excitation spectrum contains plasmons in both phases, in agreement with the Bogoliubov and HA theories. Finally, we argue that this model can be interpreted as a realization of the unitary limit of a Bose system with the advantage that the system stays in the genuine ground state contrarily to the metastable state realized in experiments with short-range Bose gases.Comment: published version, 27 pages, 6 figures, 1 tabl

Lamb Shift of Laser-Dressed Atomic States

We discuss radiative corrections to an atomic two-level system subject to an intense driving laser field. It is shown that the Lamb shift of the laser-dressed states, which are the natural state basis of the combined atom-laser system, cannot be explained in terms of the Lamb shift received by the atomic bare states which is usually observed in spectroscopic experiments. In the final part, we propose an experimental scheme to measure these corrections based on the incoherent resonance fluorescence spectrum of the driven atom.Comment: 4 pages, 1 figure, submitted for publicatio

Scanning Electron Microscopy Study of Drilling Cuttings in Tomsk Oblast Sites

The research is focused on determining mineralogical composition of drilling cuttings by scanning electron microscope as well as imaging the sample surface of high resolution that allows studying the structural characteristics of the site. In addition, a number of other techniques permit obtaining information on chemical composition of sample in near-surface layers. The study in drilling cuttings by means of scanning microscopy has revealed the presence of titanium, iron, zirconium oxides, iron sulphide, barium sulphate. The former is a mineral that concentrates rare-earth elements, presumably monocyte, as well as uranium silicate, etc. The results obtained confirm the data of previous X-ray structural analysis, i.e. the study samples consist of alumosilicate matrix. Apart from silicon and aluminium oxides, the matrix includes such elements as Na, K, Mg. Such a composition corresponds to rock-forming minerals: quartz, albite, microcline, clinochlore, muscovite, anorthoclase

Resonance fluorescence and Autler-Townes spectra of a two-level atom driven by two fields of equal frequencies

We study the effects of driving a two-level atom by two intense field modes that have equal frequencies but are otherwise distinguishable; the intensity of one mode is also assumed to be greater than that of the other. We calculate first the dressed states of the system, and then its resonance fluorescence and Autler-Townes absorption spectra. We find that the energy spectrum of the doubly dressed atom consists of a ladder of doublet continua. These continua manifest themselves in the fluorescence spectrum, where they produce continua at the positions of the Mellow sideband frequencies omega(L)+/-2 Omega of the strong field, and in the Autler-Townes absorption spectrum, which becomes a two-continuum doublet

Пути снижения госпитальной летальности у пациентов с кардиогенным шоком при остром коронарном синдроме

Objective: to analyze a medical care system for acute coronary syndrome (ACS) in a large city in terms of in-hospital cardiogenic shock mortality risk management. Materials and methods. The health care facility management system for a risk for cardiogenic shock (CS) and its poor outcome (death) was a methodological basis of this study. The information from case histories of ACS patients consecutively admitted to the Kemerovo Cardiology Dispensary (Kemerovo, Russia) in the period 2006 to 2011 was used to develop an electronic database. Sampling included 19281 patients with ACS, 6537 with myocardial infarction (MI), 493 with CS. Results and discussion. The medical care system for patients with ACS encompasses an emergency team (a prehospital level), a specialized cardiac hospital (an in-hospital level) with a multistage therapeutic and diagnostic process in relation the severity of a patient’s status. The management is based on the principle of continuity of care, by applying the well-defined activity algorithms through valid information exchange and risk stratification for poor outcomes of ACS. An antishock team working just in the admission unit of a hospital was set up to treat high CS risk patients. A systems approach allowed the strategy of early specialized medical care to be developed with a priority of primary percutaneous coronary interventions (PCI) as reperfusion therapy in patients with ST-elevation MI. In 2006-2011, every three patients with suspected ACS had verified MI that was com_ plicated by CS in 7.5%. In the CS group, the in-hospital mortality rates totaled 88.0% of cases; that after primary Адрес для корреспонденции (Correspondence to): PCI was 62.2%. In the examined period, the introduction of innovation clinical and organizational approaches provided a reduction in this indicator by 17.6 and 37.5%, respectively. Conclusion. The efficiency of risk management for CS and its poor outcomes in patients with ACS is determined by the unique principles of medical care rendering at all levels on the basis of risk management methodology.Цель исследования . Анализ системы оказания медицинской помощи при остром коронарном синдроме (ОКС) в крупном городе с точки зрения управления риском госпитальной летальности от кардиогенного шока (КШ). Материалы и методы. Основой исследования выступает система менеджмента медицинской организации в отношении риска КШ и его неблагоприятного исхода (смерть). На основе сведений из историй болезни пациентов с ОКС, поступивших последовательно в Кемеровский кардиологический диспансер (г. Кемерово, Россия) в период с 2006 по 2011 год сформирована электронная база данных. Способ формирования выборки — сплошной (с ОКС — 19281, с инфарктом миокарда (ИМ) — 6537, кардиогенным шоком (КШ) — 493 пациентов). Результаты и обсуждение. В системе оказания помощи пациентам с ОКС участвуют скорая медицинская помощь (догоспитальный уровень), специализированный кардиологический стационар (госпитальный уровень) с многоэтапным лечебно-диагностическим процессом по степени тяжести состояния пациента. Управление осуществляется по принципу преемственности помощи, с использованием четких алгоритмов деятельности на основе достоверного информационного обмена, стратификации риска неблагоприятных исходов ОКС. Для лечения пациентов с высоким риском КШ создана противошоковая бригада, работающая с этапа приемного отделения стационара. Системный подход позволил развивать стратегию раннего оказания специализированной медицинской помощи с приоритетом первичных чрескожных коронарных вмешательств (ЧКВ), как метода реперфузионной терапии у пациентов с ИМпST. За 2006—2011 гг. у каждого третьего пациента с подозрением на ОКС верифицирован ИМ, который у 7,5% осложнился КШ. Госпитальная летальность в целом в группе КШ составила 88,0% случаев, при проведении первичного ЧКВ — 62,2%. Внедрение инновационных клинико-ор-ганизационных подходов обеспечило за исследуемый период снижение показателя на 17,6 и 37,5% соответственно. Выводы. Эффективность управления риском развития КШ и его неблагоприятных исходов у пациентов с ОКС определяется едиными принципами процесса оказания медицинской помощи на всех уровнях на основе методологии риск-менеджмента. Ключевые слова: острый коронарный синдром, кардиогенный шок, риск-менеджмент

Fluorescence spectrum of a two-level atom driven by a multiple modulated field

We investigate the fluorescence spectrum of a two-level atom driven by a multiple amplitude-modulated field. The driving held is modeled as a polychromatic field composed of a strong central (resonant) component and a large number of symmetrically detuned sideband fields displaced from the central component by integer multiples of a constant detuning. Spectra obtained here differ qualitatively from those observed for a single pair of modulating fields [B. Blind, P.R. Fontana, and P. Thomann, J. Phys. B 13, 2717 (1980)]. In the case of a small number of the modulating fields, a multipeaked spectrum is obtained with the spectral features located at fixed frequencies that are independent of the number of modulating fields and their Rabi frequencies. As the number of the modulating fields increases, the spectrum ultimately evolves to the well-known Mellow triplet with the sidebands shifted from the central component by an effective Rabi frequency whose magnitude depends on the initial relative phases of the components of the driving held. For equal relative phases, the effective Rabi frequency of the driving field can be reduced to zero resulting in the disappearance of fluorescence spectrum, i.e., the atom can stop interacting with the field. When the central component and the modulating fields are 180 degrees out of phase, the spectrum retains its triplet structure with the sidebands located at frequencies equal to the sum of the Rabi frequencies of the component of the driving field. Moreover, we shaw that the frequency of spontaneous emission can be controlled and switched from one frequency to another when the Rabi frequency or initial phase of the modulating fields are varied

LONG TERM SURVIVAL OF MYOCARDIAL INFARCTION PATIENTS COMPLICATED WITH CARDIOGENIC SHOCK

Aim. To study the parameters of long term survival of patients with myocardial infarction (MI), complicated with cardiogenic shock (CS) and the main medical and social factor influencing survival rate. Material and methods. The patients included in the study were treated in Kemerovo Cardiological dispensary in 2006-2011 yy. Number of patients was 6462, of those with cardiogenic shock — 493. Statistics was done with the standard licensed software "Statistica 6.0". For survival estimation we used the methods of tables construction on life duration and multiplying Kaplan-Meier marks. Results. During 2006-2011 yy. CS developed in 7,6%. Among patients more prevalent were older and retired ages, the comorbidity level was high (anamesis of MI and stroke, diabetes and chronic obstructive lung disease). Annual survival rate in CS was 9,6%, triannual — 7,9%.Conclusion. Long term survival rate is negatively correlated with the age and does not depend on the patients' gender. Retired and older age, disability, anamnesis of MI, significant aortic stenosis, prominent chronic heart failure, multivessel coronary disease are associated with lower long-term survival rate. Reperfusion therapy by percutaneous intervention, the use of intraaortal balloon contrapulsation and renal replacement therapy in the complex CS therapy significantly improve long term survival of patients

Psychosomatic peculiarities of lipomas course in the maxillofacilal area

Dzhereley A. A., Romanenko I. G., Kryuchkov D. Yu., Gorobets S. M. Psychosomatic peculiarities of lipomas course in the maxillofacilal area. Journal of Education, Health and Sport. 2015;5(7):163-170. ISSN 2391-8306. DOI 10.5281/zenodo.19470 http://ojs.ukw.edu.pl/index.php/johs/article/view/2015%3B5%287%29%3A163-170 https://pbn.nauka.gov.pl/works/579617 http://dx.doi.org/10.5281/zenodo.19470 Formerly Journal of Health Sciences. ISSN 1429-9623 / 2300-665X. Archives 2011 – 2014 http://journal.rsw.edu.pl/index.php/JHS/issue/archive   Deklaracja. Specyfika i zawartość merytoryczna czasopisma nie ulega zmianie. Zgodnie z informacją MNiSW z dnia 2 czerwca 2014 r., że w roku 2014 nie będzie przeprowadzana ocena czasopism naukowych; czasopismo o zmienionym tytule otrzymuje tyle samo punktów co na wykazie czasopism naukowych z dnia 31 grudnia 2014 r. The journal has had 5 points in Ministry of Science and Higher Education of Poland parametric evaluation. Part B item 1089. (31.12.2014). © The Author (s) 2015; This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland and Radom University in Radom, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 21.04.2015. Revised 28.05.2015. Accepted: 30.06.2015.   Psychosomatic peculiarities of lipomas course in the maxillofacilal area Dzhereley A. A., Romanenko I. G., Kryuchkov D. Yu., Gorobets S. M. Federal State Autonomous Educational Institution of Higher Education "Crimean Federal University named after V.I. Vernadskiy" Medical Academy named after S.I.Georgievsiy Dentistry Department     Summary Patients with lipomas in the maxillofacial area show some types of psychological reactions. But the most focused attention of the doctor in the postoperative period is required by the patients of euphoric-anosognosic psychosomatic group due to the high level of compliance between psychological reactions and somatic indicators. Was determined of three psychosomatic groups: anxiety-obsessive-phobic, euphoric-anosognosic and harmonious. The most focused attention of the doctor in the postoperative period is required by the patients of euphoric-anosognosic psychosomatic group due to the high level of compliance. Keywords: lipomas, maxillofacial area, psychological reactions, postoperative period