Publications by authors named "Gusak V"

Objectives: The objective of this study was to compare the prevalence of different types of injuries caused by various types of projectiles among urban, suburban and rural cats of different ages in order to predict the type of injury sustained.

Methods: For the period 1 January 2012 to 30 April 2014, the medical records of cats with metal projectile injuries (PIs) were searched from the archive of the university's small animal diagnostic imaging centre. Age, sex, owner address, admission during a weekend or on a working day, month of admission, projectile position (head and neck; thoracic region; abdominal region, including lumbosacral spine; forelimbs; and hindlimbs, including tail), number of projectiles, presence of a wound and fracture related to the projectile, and the type of projectile were recorded for each cat.

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Localized plasmon resonance (LSPR) spectroscopy, employing gold nanodisk substrates, is applied for studies of photoswitching in self-assembled monolayers of azobenzene-containing thiols. By choosing customized samples in which the sharp LSPR resonance is well separated from the spectral regime of the molecular absorption bands, the photoisomerization kinetics of the adlayer can be monitored in real time. Quantitative data on the photoinduced trans-cis and cis-trans isomerization processes in inert gas atmosphere were obtained as a function of irradiation intensity and temperature, demonstrating the high sensitivity of this technique to such processes in functional adlayers.

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Morphine and fentanyl are often used as adjuvants in epidural anesthesia to prolong analgesia. The aim of this study was to evaluate the impact of addition of morphine or fentanyl to lidocaine on serum lidocaine concentrations in rabbits after epidural administration. During general anesthesia, rabbits of the group L received epidurally 2% lidocaine, rabbits of the group LM 2% lidocaine and morphine, and rabbits of the group LF 2% lidocaine and fentanyl.

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We have measured the angular distribution of light scattered off 2D plasmonic Al nanoparticle ensembles. We created these samples with disk-like nanoparticles, 175 and 500 nm in diameter, respectively, using hole-mask colloidal lithography and electron beam lithography. The nanoparticle arrangements in the samples display the short-range order (but no long-range order) characteristic for an ensemble formed by random sequential adsorption.

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Dye adsorption plays a crucial role in dye-sensitized solar cells. Herein, we demonstrate an in situ liquid-phase analytical technique to quantify in real time adsorption of dye and coadsorbates on flat and mesoporous TiO(2) films. For the first time, a molar ratio of co-adsorbed Y123 and chenodeoxycholic acid has been measured.

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Indirect nanoplasmonic sensing (INPS) is an experimental platform exploiting localized surface plasmon resonance (LSPR) detection of processes in nanomaterials, molecular assemblies, and films at the nanoscale. Here we have for the first time applied INPS to study dye molecule adsorption/impregnation of two types of TiO(2) materials: thick (10 μm) mesoporous films of the kind used as photoanode in dye-sensitized solar cells (DSCs), with particle/pore size in the range of 20 nm, and thin (12-70 nm), dense, and flat films. For the thick-film experiments plasmonic Au nanoparticles were placed at the hidden, internal interface between the sensor surface and the mesoporous TiO(2).

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Nanocomposite layers of Ag nanoparticles and a-Si:H film constitute attractive candidates for the realization of ultrathin "two-dimensional" plasmonic solar cells, with an ideal 18% efficiency predicted for an average layer thickness of only 20 nm. By combining optical spectroscopy with photoconductivity measurements, we here characterize different contributions to the light absorption and charge carrier generation in such nanocomposites. We focus in particular on the important role of the absorber layer thickness for these processes, by studying a range of a-Si:H thicknesses from 9 to 67 nm.

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The growth factors, cytokines, adhesive molecules and extracellular matrix components play the leading role in the processes of intercellular interactions. Literary data on structure and mechanisms of functioning of the growth factors and their receptors are summarised in the present review. Some aspects of regulatory functions of such growth factors as EGF, TGFalpha, TGFbeta, FGF, KGF, AR, and HGF in these processes in epidermis keratinocytes both in vivo and in vitro as example were also considered.

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There was summarized experience of surgical treatment of 88 patients with narcotic dependence, in whom the hemorrhage have occurred due to postinjection injury of the main vessels. Reconstructive-restorational operations were conducted in acute period in the absence of sepsis, hemorrhagic shock and vast focus of infection, using auto vein and in the remote period--synthetic prostheses. All the patients, suffering narcotic dependence, admitted to the clinic, are considered as probably AIDS-infected.

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The results of treatment of 43 patients with chronic ischemia of extremities with application of preparation endotelon were summarized. Stable positive effect, preserved during 2-4 month was noted in 34 patients. Lowering of regional venous pressure, at average for the first week by (1.

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Electrocardiostimulator was implanted in 108 patients for the carotid sinus syndrome. In 38 observations ventricular stimulation was applied, in 19--the two-chamber one and in 51--the atrial. The syncope disappearance was observed while the DDD and AAI modes of stimulation.

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Various magnetic (continuous current, alternating current and "running" impulse) fields were applied in 74 patients with trophic ulcers of lower limbs. 10-12 days after the beginning of the magnetic therapy wound surface has completely cleaned from necrotic tissues, surrounding inflammatory changes eliminated, epithelization of the wounds began. The most pronounced clinical effect was observed after the use of "running" impulse of magnetic field.

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The experience of treatment of patients with deep burns measuring 20% and more of the body surface was summarized. In the principal group 29 injured persons were operated on the 5-7th days after trauma, in the control one in 28 burned persons the skin transplantation was accomplished on granulating wounds. In the principal group lethality was 24.

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Hospital mortality analysis in patients with different kinds of bradyarrhythmias after electrocardiopacemaker implantation operation performance was conducted. Significant haemodynamics improvement did not occur, if the patients had the pronounced coronary atherosclerosis. It was concluded that combined surgical correction of this pathology is needed.

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A technique for cryotherapy of the postburn hypertrophic scars, and a method for protection of the surrounding tissues from damaging effect of the low temperatures have been suggested. In 76.4% of patients, a good cosmetic result has been obtained.

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Possibilities to prognose the effect of reconstructive operation on the lower extremity vessels are shown on the basis of transcutaneous of oxygen on the dorsal surface of the foot in complex with ultrasonic Dopplerometry in patients with severe ischemia of lower extremities. Effectiveness of the test with the orthostatic growth of Po is proved. An examination of 60 patients with severe ischemia of lower extremities and 10 patients without pathology of main vessels (control group) was performed.

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