[Theory of formation of the postmortem muscle contraction ridge during mechanical stimulation of skeletal muscles].

The study aimed to develop a theory of the formation of the postmortem muscle contraction ridge with mechanical stimulation of skeletal muscles. We determined the distribution of stress arising in the muscle as a result of a local impact. No muscle contraction ridge developed in the series of 10 experiments, where Gd was impregnated into muscle tissue using electrophoresis before the test for idiomuscular contracture.

[Possibilities of using results of head computed tomography in victims with traumatic brain injuries].

The constant increase in the number of neurotraumas in the country leads to an increase in forensic examinations of a persons. In Russia, about 600 thousand people receive craniocerebral injuries annually, of which 50 thousand die, others are potentially will be in forensic examination during or after treatment. With an increase in the total number of such examinations, the number of erroneous conclusions is expected to increase.

[Impact of projectile incidence angle with obstacle during ricochet on the damage characteristics formed in smoothbore weapon shot].

The aim of this study was to establish the degree of projectile incidence angle with obstacle on forensic medical characteristic of gunshot injuries arising from smoothbore weapon fire and bullet ricochet. Based on the comprehensive forensic study results of experimental entry gunshot injuries, statistically significant differences in the following morphological signs were found for two ranges of incidence angle values (10-20° and 30-50°): «Number of MD», «Length 1 MD», «Length 2 MD», «Width 1 MD», «Orientation of AD to the conventional clock face relative to MD 1 or to the group of largest MD (max. value)».

[The possibility of diagnosing the prescription of death in the study of embalmed corpses by the method of spin probes. (Experimental study)].

Is to establish the possibility of studying the vitreous body of the eye from embalmed corpses using the spin probe method to develop diagnostic criteria for the prescription of death coming. The article presents data showing the possibility of diagnosing the prescription of death coming by the method of spin probes with the examination of the vitreous body of the eye from embalmed corpses. A total of 510 spectra obtained during incubation of the 1-oxyl-4-oxo-2.

[Distance teaching of forensic medicine at the department of medical university during the COVID-19 pandemic].

The purpose of the work is to share the experience of distance teaching of forensic medicine. Teaching of forensic medicine throughout the history of the department of forensic medicine of the medical faculty of the Pirogov Russian National Research Medical University Research Medical University took place exclusively on the intramural basis. However, the COVID-19 pandemic has made its adjustments and teaching became remote.

[About the term «newborn» in forensic medicine].

The aim of this work is to prove necessity of using the term «newborn» as common both in forensic medicine and general medicine (from the moment of birth till 28th day), to show legality of using the term «signs of recent birth», to demonstrate the importance of understanding not only the higher border in definition of neonatal period but its initial moment that is necessary to solve some investigative questions and determine legal capacity of people and provide criminal justice defense of citizens' life and health.

[Mathematical modeling of femoral diaphyseal fracture at an acute angle].

The aim of the work is to establish the regularity of the formation femoral diaphysis fracture under an impact action on the anterior surface of the femur at an acute angle. As a result of mathematical modeling, transverse and short oblique, comminuted fractures of the femoral diaphysis were studied. Application of mathematical modeling with final element analysis made it possible to visualize and predict the stresses arising in the trace-perceiving material under the impact action of a blunt solid object.

[Mechanics and morphology of destruction of the diaphysis of long tubular bones of the lower extremities under various types of external influences by blunt solid objects].

The purpose of the study is to develop forensic criteria for determining the mechanisms of fractures of long tubular bones of the lower extremities subjected to dynamic (impact) and static (compression) impacts with blunt objects, in relation to road traffic injury and falling from a height. The morphological characteristics of damages to the long tubular bones of the lower extremities under shock and compression loading of the extremities of biomannequins at various structural levels were studied. Objective morphological qualitative and quantitative criteria for fractures under various types of loading are revealed based on the analysis of the morphological characteristics of a fracture and in the depth of the compact bone layer.

[Morphological characteristics of gunshot injuries resulting from ricochet depending on type of experimental barrier].

The purpose of this study was to establish a set of distinctive features of the qualitative and quantitative parameters of gunshot injuries resulting from the ricochet of a bullet and buckshot when firing from a smooth-bore weapon, depending on the type of experimental barrier. As a result of the ballistic experiment, a list of statistically significant characteristics of input gunshot injuries of biological and non-biological targets formed when firing with a bullet and buckshot followed by a ricochet was revealed, which will enable to determine the sought type of barrier from the two suggested options: «Concrete 2» or «Brick», «Concrete 2» or «Metal», «Brick» or «Metal». Besides, a list of characteristics of input gunshot injuries has been established, the parameters of which are under statistically significant influence of the type of experimental barrier.

[Disputable issues of application of the medical criterion «persistent loss of general work capability» in determining the severity of harm caused to human health].

The purpose of the work is to identify challenging issues that arise during the forensic determination of the severity of harm caused to human health, which entailed permanent loss of general ability to work, by means of a content analysis of the existing regulatory documents, results of forensic medical examinations and the formulation of proposals for their modification and supplementing with regard to elimination of existing contradictions. The analysis of expert practice on a selective study of 1.000 expert conclusions for 2016-2022 is given, which showed that, when assessing the severity of harm caused to human health in a number of cases (3.

[Features of the production of situational examinations in forensic organizations of the first level].

The purpose of the work is to study the current state of the performance of situational examinations in district and interdistrict departments of forensic medical examination (FME of the 1st level) with the formation of a unified methodological basis and the introduction of the developed integrated methodology for conducting forensic medical situational examinations in practice work of FME of the 1st level. In this study, the assessment of the current state of performance of situational examinations in FME of the 1st level was carried out on the example of the Tula Regional Bureau of Forensic Medical Examination. At the initial stage, the actual (both absolute and relative) volumes of the performance of situational examinations in the FME of the 1st level were established, with the identification of features of their annual dynamics.

[History of the department of forensic medicine, named after P.A. Minakov of the medical faculty of the Pirogov Russian national research medical university].

The article is devoted to the history of the formation and development of the department of forensic medicine named after P.A. Minakov of the medical faculty of the Pirogov russian national research medical university for 115 years.

[Analysis of 5-year monitoring of road traffic injuries rates in Kazan].

The objective of the study is to establish a set of possible causes and patterns that influence the frequency and severity of road traffic accidents with fatalities. The results of the 5-year monitoring analysis of fatal road traffic injuries in Kazan are presented. We analyzed 662 cases.

[Estimation of time since death with the postmortem microbiome: a modern view and approaches to solving the problem].

The aim of the review is to summarize and update the data of modern studies devoted to determining the post-mortem interval (PMI) with the use of microorganisms, as well as disclosing prospects for further study in the presented direction. Estimating the time elapsed since death based on the postmortem microbiome has great potential for accurate determination of PMI, but all methods currently used have their limitations. The dynamics of changes in microbial communities due to the influence of many external and internal factors significantly complicates the process of interpreting the results.

Forensic pathological characteristics of explosion trauma in confined space terrorist mass fatalities classified with a 3-dimensional model.

Background: Explosion fatalities are the severest type of violent crimes. These involve the use of explosive devices in terrorist like activities in confined spaces in civilian or military settings, with mass number of people present all around. A stark dearth of literature for the forensic interpretation of such catastrophes is astonishing.

[Diagnostics of the presence of once of death and peculiarities of performance of the forensic medical examination in post-mortal facial condition].

The purpose of the research is to summarize the current information about post-mortem interval (PMI) estimating and the peculiarities of the forensic medical examination in postmortem glaciation of the corpse. On the territory of most regions of the Russian Federation, the autumn-winter period passes with a significant decrease in ambient temperature, which makes this topic relevant. The article describes in detail the mechanisms of freezing of human cells and tissues, methods for diagnosing PMI, the peculiarities of the examination in postmortem glaciation, and also put forward directions for further research.

[On the need for a unified approach in assessing the muscle contraction swelling (idiomuscular tumor) in determining the time since death coming].

The aim of this work was to study the response of muscles to mechanical irritation with the establishment of the maximum time of its occurrence within 2 to 15 hours of the post-mortem period in persons of mature, senile and elderly age with the development of an algorithm for its study. This work presents the data of a study of 345 corpses of mature, senile and elderly age with a precisely defined time of death coming within 2 to 15 hours of the post-mortem period. All studies were divided into 8 age groups.

[Study of certain electrophysical properties of adipose tissue in the postmortem period when working with a direct current source].

Unlabelled: Some features of changes in the electrophysical properties of adipose tissue of animal origin in the postmortem period when working with direct-current sources are considered.

Objective: Evaluate experimentally the possibilities of registering changes in the electro-physical properties of biological tissues using a direct current source when working with a specific resistance as well as to identify the possible recorded changes in biological tissues when a reverse electromotive force and polarization phenomena occur. At the first stage the fatty subcutaneous layer of a pig was used as samples of adipose tissue which is closely similar to human adipose tissue in composition.

[Estimation of time after death by the muscle contraction swelling (idiomuscular tumor) in children and adolescents (4-17 years old)].

Study of muscles response to mechanical irritation with the establishment of the maximum time of its occurrence for 2 to 15 hours of the postmortem period in children and adolescents who died at the age of 4 to 17 years. The the study data of 228 corpses of children and adolescents aged from 4 to 17 years with a precisely established time of death - from 2 to 15 hours are presented. Three age groups are identified: 1st - from 4 to 7 years, 2nd - from 8 to 11th and 3rd - from 12 to 17 years old.

[Determination of the death time in children (1-3 years old) by the muscle contraction swelling (idiomuscular tumor)].

Was to research the muscles response in children during three years of their life to mechanical stimulation with evaluation of the maximum time of its occurrence from 2 to 15 hours of the postmortem period. Assessment of the muscles response to mechanical stress is one of the methods for determining the time of death coming. For the deceased of mature age, there is very little scientific data on this topic and for children and adolescents there is none at all.

[Foreign body in the esophagus as a reason to assess the medical aid quality during the forensic medical examination].

Was to investigate in detail the case of a combination of esophageal injury and aortic aneurysm from the standpoint of the perspective of medical care. It was established that the circumstances of the improper provision of medical care in this case were the subjective nature in the form of insufficient and incorrect provision of it. It is shown that continuous training of doctors and mid-level medical workers within the continuing medical education is a gurantee of proper medical care.

[Problems of forensic medical assessment of neurological manifestations of injury of the caudal spine and ways to solve them].

The aim of the work is to consider the problematic issues of forensic medical assessment of neurological manifestations of injure of the caudal spine. The current edition of the Medical criteria of characteristics doesn't contain clear qualification and interpretation of definitions of the health severity in patients with injury of the caudal spine. Proposed to determine the health damage by the outcome in accordance with the degree of persistent loss of general ability to work when examining spine injuries with clinically established neurological deficits in the absence of danger to human life.

[Assessment of effect of underlying skim-muscule flap on damage to non-biological targets by a ricocheting bullet and buckshot during a shot from smooth-bore weapons].

The purpose of the work is to determine the advisability of using a skin-muscle flap as an imitator of a human body under a dense cotton target when modeling gunshot injuries resulting from ricochet of a bullet and buckshot when fired from a smooth-bore weapon through clothing. We conducted a ballistic experiment on the formation of gunshot injuries of dense cotton targets themselves, as well as with the underlying skin-muscle flap, formed when a 12-gauge hunting rifle is shot and the subsequent ricochet of bullets and buckshot. As a result of a comprehensive study, the absence of the effect of the underlying skin-muscle flap on the average values of most parameters of gunshot injuries of non-biological targets (<0.