11 research outputs found
About training of Kazakh students of not language specialties basis of scientific speech
No full textThe article discusses the process of written scientific speech training should include two components: teaching understanding and evaluating texts that make the scientific speech in all its substantive and problematic species and learning the rules of creating texts in the chosen specialty. The idea about functional languages develops in the theory vernaculars among which numerous languages of science take essentially important place; studying of these languages represents the theory and practice of studying and teaching separate kinds of the professional scientific speech.
The author specifies in the conclusion that to train students of the well-bred written scientific speech, are necessary: accurate problem definition, the existence of education and methodical guidance’s, and also the use of modern linguistic and lingo-didactic methods of training
About antroponyms in Kazakh Turkish and Turkey Turkish
No full textUrl: http://sutad.selcuk.edu.tr/sutad/article/view/611Her halkın kişi adlarının teşekkülü o halkın tarihiyle doğrudan ilgilidir. Bu makalede Türkçe ve Kazakçadaki fiil kökenli kişi adlarının yapısal, sözlüksel ve anlamsal özellikleri incelenmiştir. Ayrıca Türkiye Türkçesi ve Kazak Türkçesindeki fiil kökenli kişi adlarının çoğunun sağlam örf ve âdetler üzerine bina edildiği belirtilmiştir.Formation of antroponyms in every nationalies associated with history antecedents. In
the article the author is dedicated to revealing structural and lexical semantic peculiarities of Turkish and Kazakh antroponyms of verbal formation. The majority of Turkey Turkish and Kazakh Turkish antroponyms of verbal formation is based on the stable traditions and customs
THE ROLE OF THE LABORATORY IN TEACHING CHEMISTRY
No full textIn this article, the author points out the need to build a bridge between industrial centers, technologies and the educational process, to equip educational centers and to implement the idea of laboratories equipped with the necessary equipment. According to the researcher, students will be able to combine their theoretical knowledge with practical experience and develop the spirit of creativity and innovation
Визначення оптимальної температури окислення неізотермічних впорскувань рідких палив з використанням моделювання на основі статистичного розподілу крапель за розмірами
No full textSingle-hole injections of liquid hydrocarbon fuels (isooctane and dodecane) under high turbulence have been investigated using direct numerical simulation based on the statistical model considering the droplets’ atomization, distribution, and combustion. The study objects are the heat and mass transfer processes during atomization and combustion of liquid fuels injections within the combustion chambers of thermal engines. The temperature and carbon dioxide concentration distributions of the fuel-air mixture, the distributions of the droplets, their velocities, and the Sauter mean radius within the isooctane and dodecane oxidation in the engine’s combustion space were obtained. An investigation of the oxidizer’s initial temperature influence on the droplets’ atomization and combustion processes showed that the optimal temperature for both fuels is 900 K. The obtained modeling results were confirmed in good agreement with theoretical and experimental data.
Thanks to the integrated use of approaches from statistical theory, numerical algorithms and 3D computer modeling techniques, the results obtained are distinguished by high accuracy, efficiency in reducing computational resources, scientific novelty in the type of droplet atomization and suitability for practical application for technological solutions not only for single-hole, but also for multi-hole injections of liquid fuels and studying the jet-to-jet interaction phenomena.
The obtained research results can be applied in miscellaneous internal combustion engines development with different atomization types, which will allow us to contemporaneously settle the concerns of streamlining the combustion process, improving the completeness of fuel combustion and reducing emissions of harmful substancesЗа допомогою прямого чисельного моделювання на основі статистичної моделі, що враховує процеси розпилення, розподілу та згоряння крапель, були досліджені одноструменеві впорскування рідких вуглеводневих палив (ізооктану і додекану) в умовах високої турбулентності. Об’єктами дослідження є процеси тепломасообміну при розпиленні та згорянні впорскувань рідких палив у камерах згоряння теплових двигунів. Отримано дані про розподіл температури та концентрації вуглекислого газу в паливоповітряній суміші, розподіл крапель, їх швидкості та середній радіус Заутера в межах окислення ізооктану і додекану в камері згоряння двигуна. Дослідження впливу початкової температури окислювача на процеси розпилення та згоряння крапель показало, що оптимальна температура для обох видів палива становить 900 К. Підтверджено гарну відповідність отриманих результатів моделювання теоретичним та експериментальним даним.
Завдяки комплексному використанню підходів статистичної теорії, чисельних алгоритмів і методів комп’ютерного 3D-моделювання, отримані результати відрізняються високою точністю, ефективністю скорочення обчислювальних ресурсів, науковою новизною в типі розпилення крапель та практичною застосовністю в технологічних рішеннях не тільки для одноструменевих, але й багатоструменевих впорскувань рідких палив та вивчення явищ взаємодії струменів.
Отримані результати досліджень можуть бути використані при розробці різних двигунів внутрішнього згоряння з різними типами розпилення, що дозволить одночасно вирішувати завдання оптимізації процесу згоряння, підвищення повноти згоряння палива і зниження викидів шкідливих речови
Prevalence of chronic kidney disease in Kazakhstan: evidence from a national cross-sectional study
No full textAbstract To date, there have been no large-scale national studies of the prevalence of chronic kidney disease in Kazakhstan. It includes the research based on the analysis of the estimated glomerular filtration rate (eGFR). The aim of this study was to investigate the population prevalence of CKD and associated risk factors in Kazakhstan. The cross-sectional study consisted of a nationally representative sample of n = 6 720 adults aged 18 to 69 from 14 regions and 3 major cities in Kazakhstan. The study covered the period from October 2021 to May 2022. The WHO STEPS questionnaire was used for the survey. For the diagnosis of CKD, creatinine levels in collected blood samples were measured to assess eGFR. Demographic characteristics were collected and studied. The total and adjusted prevalence of factors associated with the presence of CKD were calculated and analysed using logistic regression. 73.5% (n = 4940) of participants had normal eGFR, while 25.2% (n = 1695) had mild CKD (eGFR = 60–89 mL/min/1.7 m2). The overall prevalence of CKD with eGFR < 60 ml/min/1.7 m2 was 1.3% (n = 85), of which 0.2% (n = 15) had eGFR < 45 ml/min/1.7 m2. A mild degree of CKD was most often determined in residents of the East Kazakhstan region in 10.4%, and in 7.8–8.0% of cases. The majority of CKD patients was detected in the East Kazakhstan region and Almaty city, 15.3% and 10.6% of cases respectively. In mild and CKD with GFR < 60 ml/min/1.7 m2, the age of participants was 50–69 years in 61.5% and 78.8% of cases, respectively (p < 0.001). In addition to the association with the place of residence, a statistically significant relationship was found between the risk of developing CKD and underweight (OR 1.43, 95% CI (1.09–1.88), p < 0.001), as well as the presence of obesity (OR 1.24, 95% CI (0.99–1.53), p = 0.04). We observed the prevalence of CKD with eGFR < 60 ml/min/1.7 m2 at the level of 1.3%. However, a fairly large part of study participants had a mild CKD (25.2%). The results of this study can be used for the optimization of the doctors workload and the timely provision of care to patients with CKD
Volatile organic compounds of camel milk and shubat across Kazakhstan's regions, seasons, and breeds
No full textInternational audienceDespite extensive research in recent years on camel milk composition and health benefits, limited scientific data exists on the volatile organic compound profiles of camel milk and its fermented product, shubat. This study analyzed volatile organic compounds (VOCs) in raw camel milk and shubat from six Kazakh farms across all seasons. We found that camel milk displayed higher concentrations of aldehydes, ketones, and alcohols with the main two compounds in milk being acetone and (2-Aziridinylethyl) amine. Conversely, the majority of volatile organic compounds in shubat samples belonged to esters, but the predominant compounds by concentration were ethanol, dimethylamine, propanoic acid, and octanoic acid. Seasonality emerged as the primary driver of variation in milk, with heptanal being the most discriminative compound. Fermented milk showcased regional diversity likely driven by distinct microbial communities. Findings demonstrate the dynamic nature of camel milk's aromatic properties, which are influenced by multiple factors that contribute to its distinctive sensory characteristics
3-D Modeling of Heat and Mass Transfer during Combustion of Solid Fuel in Bkz-420-140-7C Combustion Chamber of Kazkhstan
No full textAssociation between ethnicity and risk factors for carotid artery stenosis: a retrospective study
No full textDromedary and hybrid camels' milk composition
No full textLast centenary there is an increasing attention for camel dairy products, which create an attractive- ness for camel breeding with high dairy productivity. Camel physiology and adaption ability on the background of climatic changes push for interest for these animals as an important livestock species at international level, therefore, high productive camels could become an important milk source in arid zones. In this article the difference in camel milk composition, milk productivity and udder morphology of Aruana breed and hybrids from three regions of Kazakhstan was determined. According to camel milk composition the percentage of well-classed was 83.8 %: 93.3% of the Aruana were well classed vs 77.9% of the Kospak and 68.2% of the Nar-Maya. The main discriminating factors were in the order, the density and fat content in camel milk. Studying milk composition of camel breeds and populations could give us an opportunity to improve milk quality and milk productivity of local camels
