Features of damage to the ribs by a blade with a defective tip

Stab wounds are a common injury in the practice of a forensic pathologist. Such damage often occurs in domestic conditions, for example, in the kitchen during a quarrel, where knives are always at hand. The young, able-bodied portions of the population are frequent victims, which makes the problem socially significant. Knives that have been used for a long time are rarely in perfect condition; operational defects occur on them. For example, repeated sharpening results in the rounding of the tip of the blade. Moreover, during operation, the tip of the blade can bend or even break off. However, before studying the effects of such blades on flat bones, studying the history of this issue, to familiarize with the work of other scientists, is necessary. In the literature review, authors of studies on stab-cut injuries focused more on damage to the skin and clothing. Morphological features of skeletal bone injuries and the possibility of identification studies on them until the XXI century were described poorly. To improve the forensic medical diagnosis of rib injuries caused by blades with point defects based on the study of a complex of morphological features, experimental studies on cadaveric materials are necessary

The Karakul depression in Pamirs: The first impact structure in Central Asia

The Karakul depression was picked out as the possible impact structure by the study of space images of Tadjikistan. Its striking similarity with some complex impact craters such as Dellen and Gosses Bluff is evident. Our investigations of the Karakul depression in 1987 and 1989-1991 years allowed to determine it as the impact crater with the central uplift. The target of the crater is presented by slightly metamorphosed sedimentary rocks of Paleozoic, intensively folded and intruded with granites during the Gercynian orogeny. The modern structure of north-eastern Pamirs was formed by Alpinian orogeny; the raise of the area in Neogene was about 4000-7000 m

Imprecise inference for warranty contract analysis

a b s t r a c t This paper presents an investigation into generalised Bayesian analysis of warranty contracts, using sets of prior distributions within the theory of imprecise probability. Explicit expressions are derived for optimal lower and upper bounds for the expected profit for the manufacturer of a product, corresponding to an imprecise negative binomial model for which two sets of prior distributions are studied. The results can be used to set a maximum value of compensation such that the manufacturer's expected profit remains positive, under vague prior knowledge

Fractional Systems and Fractional Bogoliubov Hierarchy Equations

We consider the fractional generalizations of the phase volume, volume element and Poisson brackets. These generalizations lead us to the fractional analog of the phase space. We consider systems on this fractional phase space and fractional analogs of the Hamilton equations. The fractional generalization of the average value is suggested. The fractional analogs of the Bogoliubov hierarchy equations are derived from the fractional Liouville equation. We define the fractional reduced distribution functions. The fractional analog of the Vlasov equation and the Debye radius are considered.Comment: 12 page

8He Spectroscopy in Stopped Pion Absorption By 9Be

Level structure of 8He has been studied in the reaction of stopped pion absorption by 9Be nuclei. The missing mass spectrum in the range 0 MeV ≤ MM ≤ 10 MeV has been described by the superposition of phase-space distributions and the three states of 8He. Parameters of these states have been compared with data of other experimental and theoretical works

Eardrum perforation treatment blood plasma enriched with platelet growth factors

Introduction. The problem of the development of acute post-traumatic otitis media has not lost its relevance. Long-term preservation of the defect of the tympanic membrane contributes to the development of chronic inflammation in the middle ear and a deterioration in the quality of life of patients.Objective. To study the effect of blood plasma enriched with platelet growth factors on the regeneration of the tympanic membrane tissues in patients with acute post-traumatic perforation.Materials and methods. Patients with acute post-traumatic perforation of  the  tympanic membrane were divided into the main (24 people) and control (19 people) groups. Patients of the main group in the area of perforation of the tympanic membrane were injected once by application with a clot of autoplasma, enriched with platelet growth factors. The control group patients underwent dynamic observation of the processes of natural regeneration of the tympanic membrane tissues. On the 5, 10 and 15th days, the tissue regeneration of the tympanic membranes was assessed subjectively (patient complaints, audiometry) and objectively (otoscopy with the calculation of the dynamics of the relative perforation area, otoacoustic emission).Results. A single application of blood plasma enriched with platelet growth factors to the perforation area was significantly more often accompanied by closure of  the  tympanic membrane perforation (p ≤ 0.01) and a  decrease in  the  average relative area of the tympanic membrane perforation on days 10 and 15 of the study (p ≤ 0.01). The dynamics of the average relative area of the tympanic membrane perforation reflected a high rate of closure of the tympanic membrane defect in the main group. Better healing of the tympanic membrane in patients of the main group was accompanied by an improvement in the auditory function of the affected ear. The quality of hearing was, on average, significantly better in the patients of the main group than in the patients of the control group, both on the 10th and 15th days of observation (p ≤ 0.01).Conclusion. Clinical use of blood plasma enriched with platelet growth factors has a beneficial effect on the rate, intensity of closure of the tympanic membrane perforation and hearing

Clinical and microbiological efficacy of various methods of tonsillectomy

Introduction. There is an abundance of various methods of surgical treatment in the world, which include: classical tonsillectomy (TE), shaver TE, unipolar and bipolar bilateral TE, laser TE, palatine tonsil coblation, etc. However, there is still a risk of recurrence of chronic tonsillitis after TE there is a need for a study in the late postoperative period.Purpose of the study. Improving the efficiency of surgical treatment of patients with chronic tonsillitis based on the analysis of five main methods of surgical treatment of chronic tonsillitis according to clinical and laboratory criteria.Materials and methods. Patients were divided into 5 study groups depending on the method of tonsillectomy: The first group consisted of 60 patients after classical tonsillectomy. In the second group there were 55 patients after palatine tonsil coblation. The third group included 48 patients after laser tonsillectomy. The fourth group consisted of 64 patients after tonsillectomy using the surgitron apparatus. The fifth group consisted of 58 patients after microdebrider tonsillectomy.Results. By analysis, it was found that the best results were obtained in patients of the 1st group, who underwent classical tonsillectomy. In this group, there are fewer cases of subjective and objective clinical symptoms (sore throat, signs of subatrophic pharyngitis, hypertrophy of the lateral folds of the pharynx, remnants of the lymphoid tissue of the palatine tonsils, as well as postoperative cicatricial changes). In a laboratory study, patients of the 1st group had the lowest values of the indicators (ASL-O titer, CRP and DNase B levels, negative results of the Streptatest)

Imprecise inference for warranty contract analysis

Abstract This paper presents an investigation into generalized Bayesian analysis of warranty contracts, using sets of prior distributions within the theory of imprecise probability. Explicit expressions are derived for optimal lower and upper bounds for the expected pro…t for the manufacturer of a product, corresponding to an imprecise negative binomial model for which two sets of prior distributions are studied. The results can be used to set a maximum value of compensation such that the manufacturer's expected pro…t remains positive, under vague prior knowledge

The Analysis of Injuries and Mortality Risks Level as a Result of Road Accident in Regions of the Central and Eastern Europe

In the article the analysis of the frequency, traumatism and mortality of road accidents has been carried out at the regional level for the countries of Central and Eastern Europe and has made it possible to draw conclusions regarding certain spatial features of the distribution of these indicators and on the nonrandom nature of the location of their values on maps of the CEE regions featured in the study. On the basis of methods of spatial statistics and econometrics we have demonstrated the existence of a spatial structure in the distribution of the risks and consequences of road accidents in the various regions. Cluster analysis has enabled us to distinguish uniform clusters of regions categorised by the risks, traumatism and mortality rates of road accidents. Based on an analysis of these indicators we have introduced the evaluation of an integrated safety level for regions of the countries of Central and Eastern Europe. This allows us to estimate the complex influence of the risks and their consequences road accidents on the level of safety for certain regions or groups of regions. The results of the research which has been conducted can be used for the improvement of national and regional programs of road and transport safety, and for the development of strategies and actions aimed at reducing the risks and consequences of road accidents in certain regions