On representing noise by deterministic excitations for interpreting the stochastic resonance phenomenon.

Adding noise to a system can 'improve' its dynamic behaviour, for example, it can increase its response or signal-to-noise ratio. The corresponding phenomenon, called stochastic resonance, has found numerous applications in physics, neuroscience, biology, medicine and mechanics. Replacing stochastic excitations with high-frequency ones was shown to be a viable approach to analysing several linear and nonlinear dynamic systems.

[Peculiarities of surgical treatment for true aneurysms of the popliteal artery].

A popliteal artery aneurysm is a rare disease and therefore it seems currently important to investigate peculiarities of surgical treatment of this pathology. Our study included a total of 60 patients (62 limbs) operated on for popliteal artery aneurysms with various complications. In order to assess the obtained findings the patients were subdivided into 3 groups depending on emergency of rendering surgical care.

[Two-year results of infrainguinal reconstructions using autovenous shunts and xenografts].

The authors analysed two-year results of inftrainguinal distal arterial reconstructions using xenograft ("kemAngioprosthesis") as compared with an autovein. Ours was a retrospective study including a total of 110 patients who endured 57 femoropopliteal (distal) and 54 femorotibial bypasses by means of both an autovein and a xenograft used as a shunt. The indications for reconstructive operation in the majority of cases was critical ischaemia induced by an atherosclerotic lesion of the femoropoplitealtibial segment corresponding to type D according to the TASC II classification.

[Short and medium-term variability of blood pressure in elderly patients with arterial hypertension and predicting the risk of renal dysfunction].

The aim of the work was to specifically identify short and medium variability of blood pressure (BP) in elderly patients with arterial hypertension and to evaluate the prognostic value of fluctuation of BP for the development of renal dysfunction. 64 patients with hypertension were surveyed: a core group of 33 patients with start-AG over the age of 60 years, the control group - 31 patients with uncomplicated hypertension and onset before the age of 60 years. Variability was evaluated by day, night and diurnal SBP and DBP according to the results of daily monitoring of blood pressure, as well as intra-individual (short-term) and visit-to-visit blood pressure variability (seven consecutive days) (medium-term).

[Criteria for the determination of the distance of a gunshot from limited-range firearms based on the morphological characteristics of the wound and the results of inductively coupled plasma mass spectrometry].

We have developed the criteria allowing to determine the distance of a gunshot from limited-range firearms (an IZh-79-9TGM pistol with the elastic bullet cartridges) based on the morphological characteristics of the wound and the results of inductively coupled plasma mass spectrometry. The method has been developed for the quantitative determination of barium, lead, and antimony in the targets depending on the gunshot distance.

[Assessment of main metabolic substrates utilization during aerobic phase of physical exercises in patients with first diagnosed type 1 diabetes mellitus and in healthy persons].

The purpose of the research was to study influence of first diagnosed type 1 diabetes mellitus (FDDM-1), including metabolic consequences of diabetic ketoacidosis, on utilization of main nutritious substrates under conditions of aerobic exercise. 48 patients with FDDM-1 (15females and 33 males) and 36 healthy volunteers, composing the control group, had a protocol of bicycle ergometry test with slowly growing load. Patients with FDDM-1 were divided into 2 subgroups in line with clinical characteristic of endocrinopathy debut.

[Gas exchange function of the lungs in patients with type 1 diabetes mellitus].

Aim: To investigate diffuse capacity and static pulmonary volumes in type 1 diabetics.

Material And Methods: We investigated 141 young (66 females) patients with long-standing type 1 diabetes mellitus (IDDM) (mean age 26.2, 6.

[Physical work ability in patients with type 1 diabetes].

Physical work ability was assessed in 128 patients with a long duration of type 1 diabetes mellitus and 36 practically healthy people by K. Wasserman stepwise standard loading test with permanent monitoring of the load, oxygen consumption, and respiratory coefficient. Oxygen consumption was calculated per 1 kg body mass, and anaerobic metabolism threshold was determined.

[Detection of antimony topography using diffuse-contact method on the skin targets of bio-manikins after shooting with Makarov gun from short distance].

The authors examined sedimentation of stibium in the area of experimental skin entry holes generated by Makarov gun shots from different distances. Regularities of allocation of stibium subject to the distance of the shot were determined. Practical recommendations for expert conclusion about the distance of the shot were given on the grounds of the results of the study.

[The condition of external respiratory mechanics in patients with type 1 diabetes].

External respiratory mechanics was studied in 141 patients with type 1 diabetes mellitus (DM1) and 36 healthy controls using computed analysis of flow-volume loop and total body plethysmography. The DM1 patients were divided into 4 groups: group 1 consisted of patients without clinical signs of microangiopathic complications; groups 2 and 3 consisted of patients with initial and advanced manifestations of late diabetic syndrome (LDS), respectively; group 4 consisted of patients suffering from severe endocrinopathy with end-stage chronic renal failure. The velocity and volume parameters in groups 1 and 2 did not differ significantly from those in the controls.

[Assessment of accumulation of the shot products on the targets in shooting from a short-barreled gun with a muffler for estimation of shooting distance].

A practical expert task--to estimate shot distance and order of shots made in two victims from a gun with muffler--is described as illustration of opportunities of the complex investigation with experimental shots and emission spectral analysis of the targets. Distribution of the shot soot on the targets in shooting from the distance up to 1 m is analyzed.

[A complex study of damages inflicted by traumatic shots from the unstem gun PB-4].

Possibilities of a complex study of the damage to the body and clothes caused by shots from non-lethal arms (unstem gun PB-4 from a complex Osa) are illustrated by real expert tasks from forensic medical practice. A combination of experimental shots with emission spectral analysis of the objects of the study and targets is validated for determination of the patron characteristics and composition as well as shooting diastance.

[Role of visual control during percutaneous sclerosing therapy for soft tissue arteriovenous dysplasias].

Based on the current concept of the obvious prevalence of surgical treatment of vascular angiodysplasias over low-invasive methods of interventional radiology, the author assesses the capacities of sclerotic therapy performed by the improved visual controlling procedure. By using the well-known semiotics of ultrasound studies of angiodysplasias, the author has made significant methodological amendments to the techniques of sclerotic therapy. The principle of the proposed procedure is a result of complex use of the potentialities of ultrasound visualization and interventional X-ray contrast studies of the vascular system.

[Serum lipoproteins in different types of obesity in lipid loading challenge].

The impact of food fat load on plasmic lipid transport system (LTS) was studied in persons with abdominal and gluteofemoral obesity by the standard fat test proposed by J. Patsch. The lipoprotein spectrum in abdominally obese patients was characterized by high atherogenicity of lipoprotein spectrum on an empty stomach aggravating under fat intake: prolongation of postprandial lipemia up to 6 hours with growing apoB and apoB/A1.

[The specificity of gunshot wounds caused by rubber buck shot].

Described in the paper are forensic-medical cases related with examinations of wounds inflicted by rubber case-shot--a relatively rare ammunition. The morphology of the above wounds and specific features of deposition of "shot metals" in the damaged region were studied. The possibilities of fixing a shot distance and ammunition type were defined.

[Radiation diagnosis of venous angiodysplasias].

The paper proposes an original procedure for diagnosing venous dysplasias of different sites. The procedure is based on the analysis of the capacities of currently used invasive and noninvasive techniques of radiation visualization. The practical aspects of conduct of routine studies, their potentialities and shortcomings are outlined.

[Use of Adobe Photoshop software in medical criminology].

Describes the method of comparative analysis of various objects in practical medical criminology and making of high-quality photographs with the use of Adobe Photoshop software. Options of the software needed for expert evaluations are enumerated.

[The puncture and catheterization of the peripheral vessels using ultrasonic scanning].

Having many-year experience with angiographic interventions, the authors examined the potentialities of ultrasonic angioscanning to monitor the implementation of endovascular interventions (EVI). During the study, they developed an original procedure of different EVI with intraoperative ultrasonic monitoring, refined the ultrasonic semiotics of the procedure, achieved positive results in preventing possible complications. The authors made indications for the procedure and rational ways of its application more concrete.

[Computed tomography in refined diagnosis of abdominal aortic aneurysm: comparison of radiation therapies versus surgical outcomes and morphological studies of resected abdominal aortic fragments].

The results of computed tomography (CT) was compared with ultrasonographic and angiographic findings in 168 patients. All data of radiation diagnosis of abdominal aortic aneurysms (AAA) were compared with those of operations and morphological studies of the resected fragments of the aortic parts changed due to aneurysms. These comparisons provided a detailed characterization of the potentialities of CT performed on a third-generation unit in the presurgical diagnosis of this abnormality.