The use of modern highly precise ultrasonic gas flowmeters and etalon stands to enlarge industrial resource efficiency

In this article we have described our new development that is the ultrasonic flowmeter with high dynamic range of 1 to 2000 for industrial applications. Its high accuracy of measurement can help gas consuming enterprises to save resources. Its software and the software of corresponding computing device is able to avoid gas leakage, to minimize energy consumption and to save human resources while maintaining metrological dat

Unusual features in the nonlinear microwave surface impedance of Y-Ba-Cu-O thin films

Striking features have been found in the nonlinear microwave (8 GHz) surface impedance $Z_s=R_s + jX_s$ of high-quality YBaCuO thin films with comparable low power characteristics [$R_{res}\sim 35--60 \mu\Omega$ and $\lambda_L(15 K)\sim 130--260 nm$]. The surface resistance $R_s$ is found to increase, decrease, or remain independent of the microwave field $H_{rf}$ (up to 60 mT) at different temperatures and for different samples. However, the surface reactance $X_s$ always follows the same functional form. Mechanisms which may be responsible for the observed variations in $R_s$ and $X_s$ are briefly discussed.Comment: 4 pages, 4 figure

Psychological service of the university: a range of problems and directions of development

The article considers the topical and important issue of modern higher education: problems and development of psychological services at the university. The practice of working as psychologists-consultants at the university shows the current need to discuss this issue. Students who have come from schools and colleges are used to seeing psychologists among their “helpers” to solve psychological problems, problems in communicating with peers and teachers. In addition, the students, especially undergraduates, being experiencing the impact of the environment, need support from the psychological service. The authors substantiate the need for further development of the psychological service of a higher educational institution, identify a range of problems relevant to the psychological services of universities. The functional purpose of the psychological service of the university is determined. Its purpose and objectives are indicated, and proposals on ways to improve the organisation development of psychological services in higher educational institutions are given

Проект реконструкції Шахтарського бульвару в місті Вугледар Донецької області

The current state of Shakhtarskyi Boulevard landscaping in Vugledar city in Donetsk Region is analyzed. Landscape analysis of the site showed that Shakhtarskyi Boulevard, located in the city center of Vugledar, Donetsk Region, has a regular planning style. It is established that in the balance of the boulevard territory the buildings occupy 1.3 %, the road and path network – 27.8 %, the tree and shrubbery plantings – only 5 %, flower beds – 1.5 %, degraded lawns and non-producing sections – 64.4 %, which does not meet the planting standards adopted in Ukraine. Moreover, there are no water facilities; such elements of accomplishment as benches, lanterns and urns are not enough; there is no sidewalk along the southern side of the boulevard. The inventory of the tree and shrubbery plantings has been carried out. An inventory table of green plantations has been drawn up, on its basis the conclusions and suggestions regarding the reconstruction and restoration of green plantations and landscaping of the territory are made. Reconstruction of planting of the Shakhtarskyi Boulevard territory consists in the creation of new decorative plantations. The assortment of plants for the territory landscaping has been selected according to the soil and climatic conditions of the district. The territory planning was carried out by applying different types and forms of planting: alleys, groups, single plantings, lawns, hedges and borders, floral design of the site and vertical landscaping. Taking into account the interests of the population of all age categories, we propose to allocate several functional zones on the territory of the boulevard: an entrance zone, a memorial zone, a zone for quiet rest, a children's playground, a recreation area for young people, a pedestrian fountain, main and secondary alleys of the boulevard. Project proposals include the planting of 438 tree seedlings, 4512 shrubs, 24 lianas, 758 rose plants and 746 annuals, bulb flowers, and herbaceous perennials. An important area for improvement of this object is also the site improvement, which involves the creation of two new zones for quiet rest, the arrangement of a children's playground with a rubber coating, the reconstruction of pavements along the boulevard, the perimeter fence replacement, the installation of small architectural forms, executed in a single style (park entrance group, wrought iron pergola, wrought iron flowerbed, a "Palm" sculpture), the illumination of the boulevard territory, the arrangement of a pedestrian fountain, the decorative pool reconstruction.Проаналізовано сучасний стан озеленення території Шахтарського бульвару в місті Вугледар Донецької області. Ландшафтний аналіз території об'єкта показав, що Шахтарський бульвар, розташований у центрі міста Вугледар Донецької області, має регулярний стиль планування. Встановлено, що в балансі території бульвару споруди займають 1,3 %, дорожньо-стежкова мережа – 27,8 %, деревно-кущові насадження – тільки 5 %, квітники – 1,5 %, деградовані газони та пусті ділянки – 64,4 %, що не відповідає нормативам озеленення, прийнятим в Україні. Окрім цього, відсутні водні облаштування; недостатньо таких елементів благоустрою, як: лави, ліхтарі та урни; відсутній тротуар вздовж південної сторони бульвару. Проведено інвентаризацію деревних і чагарникових порід. Складено інвентаризаційну таблицю зелених насаджень, на основі якої зроблено висновки та внесено пропозиції щодо реконструкції та відновлення зелених насаджень та благоустрою території. Реконструкція озеленення території Шахтарського бульвару полягатиме у створенні нових декоративних насаджень. Для озеленення території підібрано асортимент рослин згідно з ґрунтово-кліматичними умовами району. Планування території здійснено за допомогою застосування різних типів і форм рослинних насаджень: алей, груп, солітерів, газонів, живоплотів та бордюрів, квітковим оформленням ділянки та вертикального озеленення. Проектними пропозиціями передбачено висадження 438 саджанців дерев, 4512 кущів, 24 ліани, 758 саджанців троянд і 746 однорічників, цибулинних квітів і трав'яних багаторічників

The development of solar-powered gas metering units equipped with radio or 3g based telemetry systems

In this article we have described the development of solar-powered gas metering units including modern ultrasonic and vortex flowmeters for volume and mass measurement of natural gas, associated petroleum gases, inert gases, oxygen, hydrogen, air, nitrogen, carbon dioxide and any other single and multicomponent gases that are not aggressive to the flowmeter material

Acute intermittent porphyria in adults: a clinical case

Background. Porphyria unites genetic pathologies related to abnormal haem (an intermediate product of haemoglobin metabolism) synthesis and its toxic products accumulation in human body. Symptoms can vary, from photosensitivity, skin rashes and chronic abdominal pain towards partial or complete paralysis and acute psychosis. This metabolic disorder is diagnosed with molecular genetic and laboratory biosample tests. Drug therapy aims at reducing toxic metabolites concentration in patient’s blood.Clinical Case Description. A 28-yo female patient had an acute atypical porphyria attack with a later onset of neurovisceral manifestations (acute abdominal pain, tachycardia) progressing post-drug-treatment into acute sensorimotor polyneuropathy with flaccid, predominantly proximal, hands-prevalent tetraparaesis. Biochemical urine tests at the National Research Center for Hematology (by 30.06.2020) revealed porphobilinogen 55.3 mg/L at norm <3. Vital indications required an urgent haem arginate pathogenetic therapy (Normosang) in a 4-day course of 3 mg/kg/day drop infusion. The recommended course was well tolerated. Drug therapy and rehabilitation entailed a positive dynamics of restoring limb muscle strength towards an almost easy getting-up from chair and bed, and skin lightening. The patient was discharged on day 20 with diagnosis: “Acute intermittent porphyria. Axonal-demyelinating sensorimotor polyneuropathy. Severe flaccid asymmetric predominantly proximal hands-prevalent tetraparaesis. Subacute course, stabilisation phase. Condition after one course of haem arginate pathogenetic therapy (Normosang) at 3 mg/kg/day”. A resident haematologist surveillance was recommended, with a routine referral for inpatient examination and treatment at the Department of Orphan Diseases of the National Research Center for Hematology, Ministry of Health of Russia.Conclusion. Porphyria is relatively rarely diagnosed, about 12 cases per 100,000 people. The symptoms variety and nonspecificity conduce to a low detection rate, and untimely diagnoses can entail severe clinical manifestations, including lethal outcomes