Myocardial stunning in patients with coronary artery disease before and after treatment by method of coronary artery bypass grafting (own studies)

Aim of the study: Determination of quantitative radiological indicators of myocardial revascularization effectiveness in patients with coronary artery disease in the early postoperative period. Materials and methods of research: For the implementation of the clinical objectives, 62 patients with coronary artery disease, heart failure, with preserved systolic function and systolic dysfunction were examined in the early postoperative period (up to 7 days). The patients' age ranged from 40 to 79 years, the average age of the examined was 59.6 ± 8.2 years. 35 (56%) patients had HF with LV systolic dysfunction with EF of 49% or less. 27 (44%) patients had preserved systolic function - ejection fraction greater than or equal to 50%. Results: In the group before treatment, the average value ​​of MV was 69.4% CI 95% [65.3%; 73.5%], and after treatment the value of MV was 75.0% CI 95% (70.8%; 79.3%], p = 0.0000. Percentage of RFP inclusion in the anterior wall was 69.5% CI [66.2%; 72.8%] before treatment and significantly improved to 72.3% CI [69.1%; 75.4%] after treatment (p = 0.023). Lateral wall had a parameter value of 73.9% CI [70.7%; 77.1%] before treatment and improved perfusion up to 77.2% CI [74.3%; 80.2%] (p = 0.018). Parameter values for the intraventricular septum were 64.5% CI [60.7%; 68.3%] before treatment and 69% CI [65.2%; 72.8%] after treatment (p = 0.000034) and for the inferior wall those were 54.0% CI (49.7%; 58.3%] and 61.7% CI (57.9%); 65.6%] before and after treatment respectively (p = 0.000032). Conclusion: The determination of quantitative radiological parameters proposed as a result of this study is extremely important for the early postoperative period (7-10 days) for determination of stunned myocardial reserve and late stage of patients` management (1-1.5 years) for determination of hibernation reserve and final assessment of CABG effectiveness

Practical implementation of 3D CBCT tomography in dentistry, diagnostics of the affects of maxillofacilal area and ent-organs

Objective: To determine the peculiarities of CBCT tomography implementation in dentistry, diagnostics of the affects of maxillofacial and ENT-organs, to formulate a contraindication and indication for the method of examination, to reveal the advantages and disadvantages of the method and to introduce the advanced algorithms of radiology to dentists, oral surgeons and otolaryngologists. Materials and Methods: The report presents the experience of the network of offices of CBCT tomography (Kiev, Kharkov,Odessa, Donetsk), the archives of 2008 through 2011 were involved into the research; the patients from Surgical Rehabilitation Department of the Institute of Dental Sciences of the Academy of Medical Sciences of Ukraine in Odessa, Plastic Surgery Clinic “Virtus” in Odessa, Clinic of Maxillofacial Surgery of Military Medical Clinical Center of the Southern Region of Odessa were involved. The surveys were carried out on CBCT tomographs manufactured by “Vatech”. The main methods were CBCT tomography of the two jaws relation, midface, nose sinuses and temporal bone. Most studies were performed before and after surgical and conservative treatment, patient age ranged from 3 to 86 years old. The most common pathologies were traumas, inflammatory processes, cysts, debride, congenital malformations, secondary edentia Results and Conclusions: during the examination we managed to obtain high quality images of hard tissue, to determine the localization of pathological formations of bone fractures, the location of cysts of the jaws and nose sinuses, nasal polyps, to determine the presence or absence of maxillary antrum in­flammatory process, as well as its origin (odontogenic sinusitis). High resolution and high-quality threedimensional reconstructions allowed optimal defining and planning the scope and method of surgery in the short term, planning the most successful surgical treatment, determining the anatomical features of the channel, selecting the successful scheme of conservative therapy. The surveys that have been carried out in dynamics, helped to evaluate the cosmetic and functional results of reconstructive and plastic surgery, prevented the occurrence of complications, determined the effectiveness of conservative therapy. Based on these data, the peculiarities of the implementation of CDCT tomography in dentistry and diagnosing the affects of maxillofacial area, ENT - organs, have been determined, the contraindications and indications for the method of the survey have been formulated; the advantages and disadvantages have been revealed; the advanced algorithms of radiology have been introduced to dentists, oral surgeons and otolaryngologists

Choice of the Group Increases Intra-Cooperation

This research investigates how variation in sociality, or the degree to which one feels belonging to a group, affects the propensity for participation in collective action. By bringing together rich models of social behavior from social psychology with decision modeling techniques from economics, these mechanisms can ultimately foster cooperation in human societies. While variation in the level of sociality surely exists across groups, little is known about whether and how it changes behavior in the context of various economic games. Specifically, we found some socialization task makes minimal group members behavior resemble that of an established group. Consistent with social identity theory, we discovered that inducing this type of minimal sociality among participants who were previously unfamiliar with each other increased social identity, and sustained cooperation rates in the newly formed groups to the point that they were comparable to those in the already established groups. Our results demonstrate that there are relatively simple ways for individuals in a group to agree about appropriate social behavior, delineate new shared norms and identities

Ультрасонографические и патоморфологические изменения при алиментарной лимфоме у кошек

The study aimed to determine the characteristic changes in alimentary lymphoma in cats during ultrasonography, pathoanatomic and cytological examination of biopsy material. The survey objects are cats with gastroenterological disorders with suspected alimentary lymphoma of different ages and genders. The diagnosis was made based on a clinical examination according to generally accepted methods, laboratory blood examination, ultrasound examination, pathomorphological examination of the intestinal walls and lymph nodes, and cytological examination of the lymph node material obtained by the TIAB method. The authors carried out the material sampling for cytological examination using percutaneous fine needle aspiration (FNA) biopsy under ultrasound control on the Mindray Z6 Vet apparatus. In addition, the authors conducted pathological and cytological studies in the Vet Union laboratory. When analyzing ultrasound examination in cats diagnosed with alimentary lymphoma, hepatomegaly, 1% ascites, 3% hydrothorax, 3 % increase in mediastinal lymph nodes, 7% splenomegaly, 16% violation of differentiation of intestinal layers, 16% violation of differentiation of intestinal layers, 29% increase in mesenteric lymph nodes, 29 % thickening of intestinal walls were observed in 12% of cases. Cytological examination revealed rounded, large, separately located cells. The population is monomorphic. During a histological study in the intestinal wall, adjacent fatty tissue of the omentum, and lymph node tissue, there is a highly cellular invasive formation constructed from diffuse layers of rounded lymphoid neoplastic cells with a scanty fibrous stroma. The most characteristic ultrasound findings are the thickening of the intestinal walls and an increase in mesenteric lymph nodes.Цель исследования заключается в определении характерных изменений при алиментарной лимфоме у кошек при ультрасонографии, патолого-анатомическом и цитологическом исследовании биопсийного материала. Объектами исследования являются кошки с гастроэнтерологическими нарушениями с подозрением на алиментарную лимфому разного возраста и пола. Диагноз ставился на основании клинического обследования по общепринятым методикам, лабораторного исследования крови, ультразвукового исследования, патоморфологического исследования стенок кишечника и лимфатических узлов, цитологического исследования материала лимфатических узлов, полученного методом ТИАБ (Тонкоигольная аспирационная биопсия). Авторы проводили забор материала для цитологического исследования методом черезкожной аспирационной тонкоигольной биопсии под ультразвуковым контролем на аппарате Mindray Z6 Vet. При анализе результатов ультразвукового исследования у кошек с диагнозом алиментарная лимфома в 12 % случаев наблюдалась гепатомегалия, 1 – асцит, 3 – гидроторакс, 3 – увеличение средостенных лимфоузлов, 7 – спленомегалия, 16 – нарушение дифференциации слоев кишечника, 16 – нарушение дифференциации слоев кишечника, 29 – увеличение мезентериальных лимфоузлов и 29 % – утолщение стенок кишечника. При цитологическом исследовании обнаружены округлые, крупные, отдельно расположенные клетки, популяция мономорфная. При гистологическом исследовании в стенке кишечника, прилегающей жировой ткани сальника и ткани лимфатического узла присутствует высококлеточное инвазивное образование, построенное из диффузных пластов округлых лимфоидных неопластических клеток со скудной фиброзной стромой. Наиболее характерными ультразвукововыми находками являются утолщение стенок кишечника, увеличение мезентериальных лимфоузлов

Collisional kinetics of non-uniform electric field, low-pressure, direct-current discharges in H2_{2}

A model of the collisional kinetics of energetic hydrogen atoms, molecules, and ions in pure H$_2$ discharges is used to predict H$_\alpha$ emission profiles and spatial distributions of emission from the cathode regions of low-pressure, weakly-ionized discharges for comparison with a wide variety of experiments. Positive and negative ion energy distributions are also predicted. The model developed for spatially uniform electric fields and current densities less than $10^{-3}$ A/m$^2$ is extended to non-uniform electric fields, current densities of $10^{3}$ A/m$^2$, and electric field to gas density ratios $E/N = 1.3$ MTd at 0.002 to 5 Torr pressure. (1 Td = $10^{-21}$ V m$^2$ and 1 Torr = 133 Pa) The observed far-wing Doppler broadening and spatial distribution of the H$_\alpha$ emission is consistent with reactions among H$^+$, H$_2^+$, H$_3^+$, and H$^-H$ ions, fast H atoms, and fast H$_2$ molecules, and with reflection, excitation, and attachment to fast H atoms at surfaces. The H$_\alpha$ excitation and H$^-$ formation occur principally by collisions of fast H, fast H$_2$, and H$^+$ with H$_2$. Simplifications include using a one-dimensional geometry, a multi-beam transport model, and the average cathode-fall electric field. The H$_\alpha$ emission is linear with current density over eight orders of magnitude. The calculated ion energy distributions agree satisfactorily with experiment for H$_2^+$ and H$_3^+$, but are only in qualitative agreement for H$^+$ and H$^-$. The experiments successfully modeled range from short-gap, parallel-plane glow discharges to beam-like, electrostatic-confinement discharges.Comment: Submitted to Plasmas Sources Science and Technology 8/18/201

Enhancing surface production of negative ions using nitrogen doped diamond in a deuterium plasma

The production of negative ions is of significant interest for applications including mass spectrometry, particle acceleration, material surface processing, and neutral beam injection for magnetic confinement fusion. Methods to improve the efficiency of the surface production of negative ions, without the use of low work function metals, are of interest for mitigating the complex engineering challenges these materials introduce. In this study we investigate the production of negative ions by doping diamond with nitrogen. Negatively biased ($-20$ V or $-130$ V), nitrogen doped micro-crystalline diamond films are introduced to a low pressure deuterium plasma (helicon source operated in capacitive mode, 2 Pa, 26 W) and negative ion energy distribution functions (NIEDFs) are measured via mass spectrometry with respect to the surface temperature (30$^{\circ}$C to 750$^{\circ}$C) and dopant concentration. The results suggest that nitrogen doping has little influence on the yield when the sample is biased at $-130$ V, but when a relatively small bias voltage of $-20$ V is applied the yield is increased by a factor of 2 above that of un-doped diamond when its temperature reaches 550$^{\circ}$C. The doping of diamond with nitrogen is a new method for controlling the surface production of negative ions, which continues to be of significant interest for a wide variety of practical applications

THE BIBLICAL EPISODE ABOUT THE THREE TEMPTETIONS OF JESUS AS A TOPIC OF THE DIALOGUE BETWEEN F. M. DOSTOEVSKY AND V. A. ALEKSEEV

The article focuses on Dostoevsky's correspondence with the soloist of the Mariinsky Theater orchestra Vasily Alekseevich Alekseev, which appeared as a feedback after the release of "A Writer's Diary"