Calculation of Free Interior Dimensions in Geokhod Transmission With Hydraulic Cylinders

Analytical expressions to specify overall dimensions of free interior in the geokhod, as well as its relation to design factors of a transmission and geokhod geometry are considered in the paper

Basin structure in the two-dimensional dissipative circle map

Fractal basin structure in the two-dimensional dissipative circle map is examined in detail. Numerically obtained basin appears to be riddling in the parameter region where two periodic orbits co-exist near a boundary crisis, but it is shown to consist of layers of thin bands.Comment: published in J. Phys. Soc. Jpn., 72, 1943-1947 (2003

Synergy of piracetam and aminalon in the cerebroprotective effect of olatropyl.

Optimization of pharmacotherapy of neurological and psychosomatic diseases led to the creation of com­bined medicines containing two or more components with different mechanisms of action, differently affecting the pathogenesis and clinical manifestations of specific forms of pathology. Combined drugs that help normalize the central regulatory mechanisms of the development of somatic pathology, improve brain metabolism and hemodynamics, stabilize the cortical-subcortical relationships, the disorders of which lie at the base of many forms of neurological and psychosomatic pathology have been particularly popular in recent years. In this article we propose options for opti­mizing nootropic therapy with olatropyl, which is a combination of two "true" nootropics - gamma-aminobutyric acid (aminalone) and piracetam in one drug form. Such a combination allows one-stage implementation of a complex of multifaceted and diverse effects on the central nervous system characteristic of both piracetam and aminalone, but achieved through fundamentally different mechanisms of action of these agents. The mechanism of action of olatropil demonstrates the pronounced synergism of the monocomponents of the preparation. This combination allows to reduce the therapeutic dosages of each of the active substances by 2 times, which, in turn, leads to a decrease in the incidence and severity of possible side effects; leveling the exciting effect of piracetam and providing higher safety and efficacy. The drug is an effective tool for the therapy of various forms of cerebrovascular pathology, improving cognitive functions, mental activity, psychoemotional status, autonomic functions, favorably affecting the quality of life of patients. The uniqueness of the mechanism of action of olatropil, consisting in the occurrence of the fact of pharmacodynamic synergy in the combined use of piracetam and aminalone in a single dosage form, contributes to the enhancement of positive pharmacological effects and the leveling of a number of negative elements of pharmacodynamics of preparation constituents

Synergy of piracetam and aminalon in the cerebroprotective effect of olatropyl.

Optimization of pharmacotherapy of neurological and psychosomatic diseases led to the creation of com­bined medicines containing two or more components with different mechanisms of action, differently affecting the pathogenesis and clinical manifestations of specific forms of pathology. Combined drugs that help normalize the central regulatory mechanisms of the development of somatic pathology, improve brain metabolism and hemodynamics, stabilize the cortical-subcortical relationships, the disorders of which lie at the base of many forms of neurological and psychosomatic pathology have been particularly popular in recent years. In this article we propose options for opti­mizing nootropic therapy with olatropyl, which is a combination of two "true" nootropics - gamma-aminobutyric acid (aminalone) and piracetam in one drug form. Such a combination allows one-stage implementation of a complex of multifaceted and diverse effects on the central nervous system characteristic of both piracetam and aminalone, but achieved through fundamentally different mechanisms of action of these agents. The mechanism of action of olatropil demonstrates the pronounced synergism of the monocomponents of the preparation. This combination allows to reduce the therapeutic dosages of each of the active substances by 2 times, which, in turn, leads to a decrease in the incidence and severity of possible side effects; leveling the exciting effect of piracetam and providing higher safety and efficacy. The drug is an effective tool for the therapy of various forms of cerebrovascular pathology, improving cognitive functions, mental activity, psychoemotional status, autonomic functions, favorably affecting the quality of life of patients. The uniqueness of the mechanism of action of olatropil, consisting in the occurrence of the fact of pharmacodynamic synergy in the combined use of piracetam and aminalone in a single dosage form, contributes to the enhancement of positive pharmacological effects and the leveling of a number of negative elements of pharmacodynamics of preparation constituents

Structure, properties and phase composition of composite materials based on the system NiTi-TiB2

This article considers issues pertinent to the research of the phase composition, structure and mechanical properties of materials obtained from powders of composite (Ni-Ti)-TiB2, which have prospective applications in aerospace and automotive industry and engine construction. The starting powder materials (Ni-Ti)-TiB2 were obtained by self-propagating high-temperature synthesis (SHS). Research samples were produced using high-temperature vacuum sintering. It was shown that the use of such materials increases the wettability of the particles and allows the production of composites, the density of which is 95% of the theoretical one. Average particle size was 1.54 µm, average microhardness was 8 GPa, which is an order of magnitude higher than the average microhardness of pure nickel-based and titanium-based alloys, and the ultimate strength values were comparable to those of tungsten-based heavy alloys

Calculation of Free Interior Dimensions in Geokhod Transmission With Hydraulic Cylinders

Analytical expressions to specify overall dimensions of free interior in the geokhod, as well as its relation to design factors of a transmission and geokhod geometry are considered in the paper

Results of application of chemical destruction in complex treatment of focal hepatic pathology

Objective. To estimate the immediate results of application of chemical destruction with 10% solution of calcium chloride in complex of treatment in the patients, suffering focal hepatic pathology. Маterials and methods. In 2012 - 2019 yrs, using chemical destruction, the impact was delivered towards 104 tumoral foci (range from 1 tо 4) in the patients, suffering hepatocellular carcinoma (23.7%), colorectal cancer metastases (55.3%) and in noncolorectal cancer (21.1%). The foci diameter have constituted at average (2.60 ± 1.24) сm (in 1.0 - 4.0 сm range). Chemical ablation was performed, using injections of 10% solution of calcium chloride. Side-effects and answer of tumoral foci were estimated. Results. The specific postoperative complications rate (formation of abscesses in zone of destruction, development of hematomas and biliomas) have constituted 10.5%. There were observed a complete answer in the foci 1.0 - 1.5 сm in diameter, while the disease progress - concerning the foci 3,8 - 4,2 сm in diameter. Local recurrence have occurred in 15.8% patients. The answer degree trustworthily depended upon the tumoral foci density (r=0.529, р < 0.001). Including, complete answering was observed in 76.9% hypodense, 23.1% іsodense foci, and partial - concerning 37.8% hypodense, 29.7% іsodense and 32.4% of the foci of mixed structure. Stabilization of the disease was diagnosed, concerning 15.0% іso- and hypodense, 40.0% hyperdense and 45.0% with the foci of mixed structure, while a progress - concerning 85.7% hyperdense and 14.3%of the foci of mixed density. Conclusion. Іntratumoral injection of 10% solution of calcium chloride in the treatment of focal hepatic pathology is not accompanied by severe specific complications and mortality, the patients are survive the procedure satisfactory, which may be applied as a local tumoral control of tumoral foci up to 3.0 сm in diameter