A. A. Khalafyan

Kuban State University | КубГУ · кафедра анализа данных и искусственного интеллекта

The features for assessing the authenticity of wines by region of origin are studied, based on the relationship between the mineral composition of the wine, the grapes, and the soil profile (0 to 160 cm) from the place of growth of Cabernet Sauvignon grapes. Soil, grape, and wine samples were taken from the territories of six vineyards in the Anapa...

An important aspect of assessing the authenticity of wines is its geographical origin. The aim of the work is to authenticate by geographical origin according to the data of the ICP-spectrometric and chemometric analysis of elemental "images" of wines produced from white grape varieties Chardonnay, Riesling and Muscat grown in four regions of the K...

Introduction: Due to the high incidence of congenital heart diseases (CHD) it is important to identify risk factors for abnormal organogenesis. There is a crucial medical need to understand cardiogenesis and possible markers of abnormalities in fetuses. Objective: To determine risk factors for CHD in pregnant women and their partners and assess CHD...

The possibility of establishing the varietal and territorial affiliation of wines by the content of rare earth elements (REE) in them was studied. ICP–OES and ICP–MS with subsequent chemometric processing of the results were applied to determine the elemental image of soils containing negligible REE amounts, grapes grown on these soils, and wine ma...

The content of free amino acids and aroma compounds present in wine and dependent on the grape variety, conditions of its growing and technology of production form its consumer properties. In this paper, the structure of interactions of amino acids and volatile organic compounds in 150 samples of natural dry red and white wines produced in the Kras...

Objective. To compare the efficacy of different forms of gestagen administration for luteal phase support in in vitro fertilization (IVF) protocols with gonadotropin-releasing hormone antagonists. Patients and methods. Data on ART cycles with “fresh” embryo transfers (day 5) were collected in a retrospective study. A total of 154 patients were divi...

Background. Currently accepted risk assessments of periodontitis progression are determinants of indirect stability: periodontal pockets, persistent bleeding of the gums, tooth mobility, local risk factors. In the era of case-oriented medicine, a relevant solution would be to choose periodontal therapy according to one-time consideration of the max...

The research data on the effect of bentonite clays (BT) in the process of clarification and stabilization on the elemental composition determining the varietal affiliation of wines are analyzed in the article. The initial objects were three untreated wine samples produced from Cabernet Sauvignon, Merlot and Moldova grape varieties in the Krasnodar...

Objective: To study the features of the coronavirus infection course in cardiosurgical and thoracic patients to determine the factors potentially affecting the possibility of lethal outcome. To identify the predictors of fatal outcome based on the analyses of the features of the coronavirus infection course in this category of patients. Material an...

The present study investigated the influence of the procedure of clarification and stabilization of wines of the Krasnodar Territory, Russia on their elemental composition and identification of varieties. The objects of the study were wines from Cabernet Sauvignon, Merlot and Moldova grape varieties. Wines were subjected to treatment by various ben...

Objective: To evaluate the efficacy and safety of original access to short rectal stump compared to traditional direct one. Material and methods: A retrospective-prospective cohort comparative study was conducted between 2012 and 2018. Inclusion criterion was previous Hartmann's procedure with formation of a short rectal stump. Short stump was d...

Study of the elemental composition of the soil-grape-wine chain and correlation relationships between the chain links is presented. The objects of the study were grapes of the Muscat, Cabernet and Merlot varieties, wine samples produced from them and soils of the viticultural areas. Concentrations of Li, Mg, Al, K, Ca, V, Mn, Fe, Ni, Co, Cu, Zn, Rb...

It is known that the oxygen saturation of the peripheral blood is determined by the efficiency of the heart, the state of the microcirculatorybed, so position-dependent fluctuations in systolic blood pressure, pressure in the left renal and left adrenal veins,mediated bursts of hormones of the adrenal cortex can affect SO2. There is every reason to...

Introduction Coronavirus disease (COVID-19) caused by SARS-CoV-2 virus identified in 2019, forces cardiology departments to quickly adapt existing clinical guidelines to the new reality, and this is particularly relevant for scheduling patients with acute coronary syndrome (ACS). The article demonstrates how COVID-19 has affected emergency cardiac...

The analysis of data on the sensory evaluation of the quality of wines obtained using traditional technologies in the Krasnodar Territory, Russia, was carried out using the statistical ranking criteria – the Spearman and Kendall correlation coefficients, as well as the positional analysis – Cronbach's alpha. Data on the sensory evaluation of 60 sam...

Individual characteristics inherent in the expert, as well as their physical and psycho-emotional state subject to the influence of random, uncontrollable factors, contribute to subjectivity in the sensory evaluation of wines. With great variability of opinions, the final results of sensory evaluation may become doubtful. The presence of a random c...

Objective. To study the efficacy and feasibility of using dequalinium chloride during the primary treatment of patients of reproductive age with the symptoms of disorders of vaginal normocenosis. Patients and methods. In 60 patients of reproductive age (31.43 ± 6.44 years), an observational study was conducted, in which the initial data characteriz...

At present, the role of the banking sector has increased significantly, not only in the development of national economies, but also of the world economy as a whole. In this regard, the special importance acquires an objective comparative assessment of large financial institutions by groups indicators characterizing their financial activities. This...

Background . According to the literature data, acute coronary syndrome (ACS) in 2-20 % of cases is combined with atrial fibrillation (AF). According to the current guidelines of the European Society of Cardiology (ESC), patients with coexisting AF and ACS should receive dual antiplatelet therapy for the prevention of recurrent cardiovascular events...

The objects of study were 150 samples of natural dry red and white grape wines of Russian origin, obtained by traditional technologies from European and hybrid grape varieties grown in wineries in Krasnodar Krai in 2010-2016. Natural red (Cabernet, Merlot) and white (Aligote, Riesling, Pinot Noir) (alcohol content of 9-13 % by volume, acidity of 4-...

Aim. To create a mathematical model for predicting an assessment of the risk of antibody-mediated rejection (AMR) and analyze the survival of recipients with antibodies to leukocyte donor antigens. Material and methods. A single-center study was conducted on the basis of S. V. Ochapovsky Regional Clinical Hospital № 1. During the 7 years 181 heart...

With the development of atrial fibrillation (AF), patients with acute coronary syndrome (ACS) are characterized by a twofold increase in the 30-day mortality compared with patients with sinus rhythm. In this regard, there is great interest in developing models of risk stratification to identify adverse outcomes in these patients with a view to more...

This paper shows a possibility of establishing the authenticity and geographic origin of wines by neural networks based on multi-element analysis. The study used 144 samples of Cabernet and Merlot dry red wines pro- duced in Krasnodar Region according to traditional technologies. The wines were provided by the producers or pur- chased in retail sto...

In order to determine the geographical origin and wine variety of white wines, we studied 153 samples of the white wines Riesling (49), Chardonnay (56), and Muscat (48) produced in the territory of the main wineries of geographical zones in the Krasnodar krai. The concentrations of trace and macro elements in wines were determined by inductively co...

Three high quality red wines – Merlot, Cabernet Sauvignon and Pinot Noir – were used for development of an optimized formulation of a new blended wine called Zvezda Kubani (“The Star of Kuban”). The experimental plan was implemented with the mixture designs and triangular surfaces module in the STATISTICA package. According to the experimental plan...

White wines of four wine-growing regions of Krasnodar region were studied by the ICP-AES method. Nineteen elements were identified in 153 samples of white wines of the Chardonnay, Riesling, and Muscat brands. Methods of statistical analysis demonstrated that, despite the complicated technological cycle of wine production (soil–grapes–juice–wine), i...

Aim. This study was designed to develop the mathematical prediction model of adenomyosis spread stages according to the results of clinical examination using the classification tree statistical method. Materials and methods . During this study we conducted the sampling of 84 patients with adenomyosis. By means of nonparametric correlation analysis...

We examined 144 samples of red dry wines of varieties Cabernet and Merlot, produced in the territory of the main wine-making enterprises of the geographical zones of Krasnodar krai, to consider the possibility of determining the regional and varietal identity of red wines. The concentration of micro- and macroelements in the wines was determined by...

Approaches to the evaluation of generalized wine quality indices based on a set of the quantitative characteristics of single parameters and their organoleptic rating were studied with the use of statistical-probability simulation methods. A general linear model (multiple linear regression) was constructed to predict degustation evaluation values f...