On the Rate of Convergence for a Characteristic of Multidimensional Birth-Death Process

We consider a multidimensional inhomogeneous birth-death process (BDP) and obtain bounds on the rate of convergence for the corresponding one-dimensional processes

The algebraic hyperstructure of elementary particles in physical theory

Algebraic hyperstructures represent a natural extension of classical algebraic structures. In a classical algebraic structure, the composition of two elements is an element, while in an algebraic hyperstructure, the composition of two elements is a set. Algebraic hyperstructure theory has a multiplicity of applications to other disciplines. The main purpose of this paper is to provide examples of hyperstructures associated with elementary particles in physical theory.Comment: 13 page

Genetic Diversity of E. coli O157:H7 Isolated from Aleppo River water samples using Random Amplified Polymorphic DNA (RAPD) marker

Waterborne outbreaks of diseases caused by pathogenic strains of E. coli have been described in many parts of the world. For the past five years in a row, water has been the main source of contamination. Aleppo River is highly polluted by the sewage water that transferred directly without processing. So, we conducted estimate total count of bacteria, the census total coliform group, also detected E. coli and especially serotype E. coli O157:H7 in water samples that were taken from eight villages passed by the river. Our results showed significant differences between the collected samples, the total count of bacteria and total coliforms in the first site (Handarat) for water samples were the lowest, but in the last site (Jezraya) were the highest among all samples. Molecular characterization was done for eight strains of E. coli using the primer (COL-1) and eight strains of E. coli O157:H7 using the primers (OPA-03, OPA-13 OPC-12, OPE-20) in RAPD. After gel documentation, we have got eight different bands from isolated strains of E. coli, and forty-five total bands with thirteen polymorphic bands from E. coli O157:H7, also showed that primer OPA-13 was the best primer for detect E. coli O157:H7. This article also showed that RAPD analysis had a high discriminatory capacity for typing E. coli isolates. Because of its simplicity and rapidity. © 2019 Author(s)

Features of pain syndrome in young women with primary dysmenorrhea

The aim of this study - to evaluate the severity of pain syndrome, quality of life and the effectiveness of pain therapy in girls with primary dysmenorrhea.Цель исследования – оценить выраженность болевого синдрома, качество жизни и эффективность обезболивающей терапии у девушек с первичной дисменореей

Rare forms of ectopic pregnancy (cervical and postoperative scar pregnancy): risks and treatment outcomes

The purpose of the study - identification of risk factors of the development of rare ectopic pregnancies (cervical and postoperative scar).Цель исследования — выявление факторов риска развития редких форм эктопической беременности (шеечной и в послеоперационном рубце) и оценка результатов лечения

Study on the influence of the magnetron power supply on the properties of the silicon nitride films

Silicon nitride (Si3N4) films were deposited by magnetron sputtering of silicon target in (Ar+N2) atmosphere with refractive index 1.95 - 2.05. The results of Fourier transform infrared (FTIR) spectrophotometry showed Si-N bonds in the thin films with concentration 2.41·1023 - 3.48·1023 cm-3. Dependences of deposition rate, optical characteristics and surface morphology on rate of N2 flow and properties of magnetron power supply

Association of rs7903146 TCF7L2, rs1042714 ADRB2 with the changes in body fat mass in different types of therapy of early carbohydrate metabolism disorders

BACKGROUND: Depending on the polymorphism of genes that that are involved in metabolism, the response of patients to different types of therapy may differ. Despite the potential effect of rs7903146 TCF7L2 and rs1042712 ADRB2 on changes in body composition in different types of therapy of early carbohydrate metabolism disorders, these associations haven’t been studied yet. AIM: To study the influence of rs7903146 TCF7L2, rs1042714 ADRB2 on changes in body fat composition in different types of therapy of early carbohydrate metabolism disorders.MATERIALS AND METHODS: The study involved patients with overweight or obesity and risk factors for Type 2 Diabetes development. All patients underwent genotyping with the real-time polymerase chain reaction, oral glucose tolerance test and bioimpedancemetry. Further, the patients were divided into two groups. First group kept a diet with the exclusion of simple and limitation of complex carbohydrates and fats. Second group took metformin in addition to the diet. Three months after bioimpedancemetry was performed again.RESULTS: The research involved 73 patients (the mean age 48±12 y.o., the mean BMI 34,27±6,18 kg/m2 ). The diet therapy group consisted of 47 people. Other 26 patients took metformin in addition to the diet. In group of diet, T allele carriers of rs7903146 TCF7L2 were characterized with more decrease in fat mass compared with CC homozygotes (- 7.90 ± 9.46% vs. -1.54 ± 8.98%, p = 0.027). CC genotype carriers of rs7903146 TCF7L2 in group of metformin and the diet had a tendency for more decrease in hip circumference compared with T allele carriers (-4.95 ± 3.34% vs. — 2.5 ± 2.96%, p = 0.064). Carriers of C allele in homozygous state of rs1042714 ADRB2, who took metformin with the diet, demonstrated more decrease in hip circumference (- 5.81 ± 3.00% vs. -2.50 ± 2.7%, p = 0.009), the tendency for decrease in fat mass (-8.28 ± 8.86% vs. — 3.20 ± 5.09%, p = 0.068) and waist circumference (-5.91 ± 4.29% vs. -3.03 ± 4.01 %, p = 0.091) compared with G allele carriers. The association of rs7903146 TCF7L2 and rs1042714 ADRB2 with changes in total body weight was not observed (p> 0.05).CONCLUSION: Single nucleotide polymorphisms rs7903146 TCF7L2 and rs1042714 ADRB2 influence on body fat composition in patients with early carbohydrate metabolism disorders in various types of treatment