The effect of serum lipids and spermoplasm on the stallion sperm quality

The quality and cryoresistance of stallion sperm depend on many endogenous and exogenous factors. One of the factors affecting the sperm quality are the parameters of the lipid spectrum of spermoplasm and blood serum. Lipase activity, cholesterol and triglyceride content in blood serum and spermoplasm were studied in 19 stallions of the Arabian breed aged from 5 years to 15 years (on average 10.1±0.3 years). It was found that lipase activity in the spermoplasm (217.0 U/l) is on average 11.4 times higher than in the blood serum (19.1 U/l). The concentration of spermoplasm triglycerides (1.3 mmol/l) is on average 4.3 times higher than in blood serum (0.3 mmol/l). The concentration of cholesterol in the blood serum (2.4 mmol/ l) is on average 12 times higher than the same indicator in the stallion spermoplasm (0.2 mmol/l). The relationship between the parameters of the lipid spectrum of blood serum and spermoplasm with the characteristics of stallion sperm was studied. A significant relationship was found between the activity of lipase in blood serum with progressive mobility (r=0.66; p=0.006) and survival (r=0.67; p=0.005) of spermatozoa in cryopreserved sperm

A clinical case of fast progression of amyloidosis of kidneys in rheumatoid arthritis

The article presents clinical case of unfavorable outcome of amyloidosis of kidneys in a patient with rheumatoid arthritis. The absence of basic treatment and persistent activity of disease leads to fast progression of nephrotic stage of secondary amyloidosis in a young woman.</p

Evaluation of the possibility of separating commercial phenol from the phenolic fraction of coal tar

This article is about the possibility of concentrating commercial coal phenol with a concentration of 99% by the weight method of rectification from the phenolic fraction of coal tar. The sufficiency of phenol is ensured by the kumol method, however, the consumption of phenol increases. Modeling of the vapor-liquid equilibrium of double and triple mixtures of components using the NRTL model showed the presence of the following positive homogeneous azeotropic mixtures: phenol-indane, phenol-indene. Modeling of the vapor-liquid equilibrium of double and triple mixtures of components using the NRTL model showed the presence of the following positive homogeneous azeotropic mixtures: phenol-indane, phenol-indene. The compositions and temperatures of these azeotropes are determined. The authors propose the isolation of phenol from the fraction and its purification from indane and indene by a clear rectification method. The technological scheme consisting of four devices is based on the analysis of the component composition of the initial mixture and the existing azeotropes. Modeling of the technological scheme showed that this scheme provides the release of phenol by 99% of the mass, which meets the requirements for coal phenol. After optimizing the technological parameters of the distillation columns, the estimated extraction costs will amount to 5.64 Gcal per ton of commercial phenol

The linen factory park of “Biysk linen company OAO” (open joint-stock company) landscape gardening redesign project in Biysk city

The aim of this research is to develop more rational proposal to improve the green area on the territory of Biysk city park in terms of its recreation, protective, sanitary and hygienic, aesthetic and research purposes. The inventory of green plantations was carried out according to the method of V.S. Theodoronsky, I.O. Bogovaya by enumeration survey of growing stand on the park area. The inventory results of green areas and the assessment of green plantations health are shown in this work, the land-use planning and landscape gardening compliance of the area were examined too. According to the results of the study, the causes are established and the methods are set for the green plantations redesign of the park area. The list of arboreal and herbaceous plants and landscape design solutions were chosen by taking into account the environmental conditions of the Altai Territory

Backscattering dynamics during intense geomagnetic storm as deduced from Yekaterinburg radar data: March 17–22, 2015

This paper examines the spatio-temporal dynamics of backscattering signals during St. Patrick’s Day two-step intense geomagnetic storm from the Yekaterinburg Coherent Radar (YeKB radar) data. It is found that a number of ground backscattering signals increased during the initial phase of the storm and decreased during the second step of its main phase and the first two days of its recovery phase. Changes in ionospheric backscattering signals started at the beginning of the main phase. During the first step, there was a six-hour sequence of ionospheric backscattering signals (BSi signals) the range of which decreased while the storm was in progress. During the last 5 hours of the main phase and the first 3 hours of the recovery phase, the YeKB radar observed only signals scattering in the E region of the ionosphere. We conduct a complex analysis of data from the YeKB radar, ground-based ionospheric, riometric, and magnetic stations located within the radar field of view. The analysis shows that the observed backscattering dynamics was caused by the magnetosphere compression, expansion of convection cells, impact ionization, and changes in atmospheric composition during the initial storm phase, first and second steps of the main phase, and the recovery phase respectively

Hypertension as a Risk Factor for Diabetes Mellitus

The objective of the investigation — to study in the age aspect the prevalence of hypertension among men and women of urban and rural population as a risk factor for diabetes type 2. The total number of surveyed among the rural population was 1,062 patients (of whom 461 men and 601 women) aged from 45 to 70 years and older, and in 1156 persons of urban population (241 men and 915 women). Hypertensive disease is quite common both in the residents of the rural and urban population of both sexes and different age groups and is very important risk factor for diabetes mellitus type 2, which must be taken into account in the survey. In the men of the rural region the disease is diagnosed in fewer cases than in women, and for residents of the city the situation is opposite — more often in men than in women of different age groups. This suggests that among young and middle-aged women — residents of the city, the prevalence of hypertension is less than that of among female residents of the rural region. The presence of overweight and II–III stage obesity contributes to an increased risk of hypertension