bluuebunny/crossref_metadata_2025 huggingface dataset:
Oscillation of a pendulum subject to a horizontal trajectory with different kinds of motion
Authors: Espindola-Heredia Rodolfo , Del Valle Gabriela , Muciño-Cruz Damián , Hernandez-Morales Guadalupe
Published: March 2021

In the children's movie The Incredibles there is a scene where Mr Incredible faces Bomb Voyage, while Incredi Boy wants to help Mr Incredible, Incredi Boy flies with Mr Incredible, who holds on to the hero's cloak, affecting Incredi Boy’s flight plan. To understand how an oscillatory movement affects non-oscillatory movement, an experimental prototype was constructed with a particle of mass m, attached to a rigid rod and without mass of length l, to a swivel of negligible mass, which was subject to a mass M. The swivel always remained on a horizontal plane, allowing the oscillatory movement of mass m. Experimental results were obtained by means of wireless sensors which recorded the spatial coordinates of the mass m. Using Lagrangian mechanics we obtained the equations of motion and expressed the possible first integrals of movement, when the movement of the mass M was: linear uniform (ULM), uniformly accelerated, (UAM), uniform circular (UCM), accelerated circular (ACM) and forced circular (FCM). The dynamics were analyzed, the equations of movement obtained, they were solved numerically, and the experimental results were compared to theoretical and numerical results.
Etxarrierako hitano-alokutiboa
Authors: Erdozia Mauleon José Luis
Published: March 2021

Artikulu honetan Etxarri Aranazko euskaran erabiltzen den hikako moldearen nondik norakoak aztertzen dira. Lehen lehenik, hikako adizkiak eta alokutiboak deskribatu eta zein testuingurutan baliatzen dituzten etxarriarrek jaso da. Ondoren, sinkretismo zenbait kasu ere aipatu eta argitu dira. Eta hortik aurrera, tauletan bildurik eta horietako bakoitzaren azpian, esaldietan kokaturik, gaur egun erabiltzen diren moduan azaldu dira. Aipatu tauletan, hikako adizkiak eta alokutiboak agertzen dira, lehenik aditz laguntzailea dagokion era eta modu ezberdinetan banaturik, eta jarraian zenbait aditz trinko. Esaldi horiek, lehenik etxarrieran (hizki beltzez eta etzanez) eta ondoren, parentesi artean hizki normalez, batuan agertzen dira adizki bakoitzari dagokion forma estandarizatuarekin eta baita, kortxeteen artean eta tamaina txikiagoan, zutanoko erabilera neutrokoa ere. Azkenik, Joseba Sarrionandiaren testu bat etxarriera alokutibora moldatuta dator.
Evaluation of the effect of foliar treatment with "Algae Super" preparation on the productivity and quality indicators of grapes
Authors: Белаш Дмитрий Юрьевич , Левченко Светлана Валентиновна , Бойко Владимир Александрович , Романов Александр Вадимович , Бейбулатов Магомедсайгит Расулович
Published: March 2021

Представлены результаты исследования эффективности системы минерального питания на основе препарата «Алга Супер» (компания ООО «АгроБиоКом») в качестве внекорневой подкормки винограда, дана оценка её влияния на формирование урожайности и показателей качества винограда столового сорта Италия и технического сорта Ркацители. Применение экспериментальной системы внекорневых обработок способствовало увеличению урожайности сортов Италия и Ркацители на 30,1 % относительно контроля. Отмечено увеличение выхода стандартной продукции сорта Италия на 4,1 % по сравнению с контролем. При использовании препарата «Алга Супер» массовая концентрация сахаров увеличилась в среднем на 3,1 % (P = 2,59*10), на фоне уменьшения массовой концентрации титруемых кислот, на 6,0-6,5 % относительно контрольных вариантов. Общая дегустационная оценка винограда сорта Италия после обработок была выше контроля на 7,1 %. Возделывание винограда с применением препарата «Алга Супер» обусловило снижение себестоимости урожая сорта Италия на 22,8 %, сорта Ркацители - на 22,1%, на фоне увеличения рентабельности возделывания на 125,4 и 58,7 % соответственно.

The results of the study on the efficiency of mineral nutrition system based on the preparation "Algae Super" ("AgroBioCom" LLC Company) as foliar treatment of grapes are presented, evaluation of its effect on the formation of grape productivity and quality indicators of table grape cultivar ‘Italia’ and wine grape cultivar ‘Rkatsiteli’ is given. Using of experimental system of foliar treatments contributed to an increase in the cropping capacity of grapevine cultivars ‘Italia’ and ‘Rkatsiteli’ by 30.1% relative to the control. An increase in the yield of standard products of the ‘Italia’ cultivar by 4.1% in comparison with the control was registered. When using the "Algae Super" preparation, the mass concentration of sugars has increased by an average of 3.1% (P = 2.59*10), against the background of a decrease in the mass concentration of titratable acids - by 6.0-6.5%, relative to the control variants. The overall tasting evaluation of the ‘Italia’ grapevine cultivar after treatments was 7.1% higher than the control. The cultivation of grapes when using the preparation “Algae Super” led to a decrease in the final cost of the yield of the cultivars ‘Italia’ - by 22.8%, and ‘Rkatsiteli’ - by 22.1%, against the background of cultivation profitability increase by 125.4 and 58.7%, respectively.
Search for new engineering design solutions of equipment for technological processes in winemaking
Authors: Сильвестров Антон Владимирович , Загоруйко Виктор Афанасьевич , Чаплыгина Наталья Борисовна , Рыжков Валентин Васильевич , Макаров Александр Семёнович
Published: March 2021

В статье поднимается проблема оснащения винодельческой отрасли современным высокоэффективным технологическим оборудованием с целью получения конкурентно-способной винодельческой продукции в связи с отсутствием отечественной машиностроительной базы. Приводится информация о зарубежных пневматических прессах периодического действия, повсеместно получивших распространение в винодельческом производстве, по сравнению со шнековыми стекателями и прессами непрерывного действия. С 2014 г. институт «Магарач» занимается разработкой и организацией восстановления серийного производства технологического оборудования для виноделия в России. По технической документации института «Магарач» изготовлены и серийно выпускаются: установка насосная для перекачивания мезги НПМ-32/32, установка насосная для перекачивания сусла и виноматериалов НПВ-10/32. Приводятся данные о научно-конструкторских разработках института «Магарач», в том числе с использованием в виноделии новых физических эффектов. Представлены результаты фактической стабильности образцов готовой винодельческой продукции, прошедших поточно-сорбционную обработку. Поднимается вопрос о необходимости развития отечественной машиностроительной базы для серийного производства современного винодельческого оборудования и оснащения ими винодельческих предприятий.

The article raises problem of supplying the winemaking industry with modern highly efficient technological equipment in order to obtain competitive wine products due to the lack of national machine-building basis. Information on foreign pneumatic batch-type presses, which have become widespread in winemaking industry in comparison with worm strainers and continuous presses is provided. Since 2014, the Institute Magarach develops and organizes manufacturing recovery of technological equipment mass production for winemaking in Russia. According to the technical documentation of the Institute Magarach, the pomace pumping unit NPM-32/32, the must and base wine pumping unit NPV-10/32 were manufactured and are mass-producing now. The statistics on scientific and engineering design projects of the Institute Magarach, which include using of new physical effects in winemaking, are given. The results of actual positive stability of finished wine product samples after flow line sorption processing are presented. Question about the necessity to develop national machine-building basis for mass production of modern winemaking equipment and further instrumentation of winemaking enterprises is taken up.
Distribution of the average monthly air temperature in August on the territory of the Crimean Peninsula
Authors: Рыбалко Евгений Александрович , Баранова Наталья Валентиновна , Борисова Виктория Юрьевна , Петров Валерий Семенович
Published: March 2021

Оригинальное исследование по изучению распределения среднемесячной температуры в августе на территории Республики Крым проведено сотрудниками сектора агроэкологии. Неоднократно доказывалось, что температура воздуха оказывает большое влияние на рост, развитие и качественные показатели виноградного растения. Особое влияние на качество урожая оказывает температура воздуха в августе, так как именно в этот период наблюдается лучшая ассимиляция углерода листьями и соответственно происходит накопление сахаров и уменьшение кислотности. В качестве материалов были использованы электронная модель рельефа SRTM-3 территории Крымского полуострова и многолетние данные метеонаблюдений по 17 метеостанциям Крыма и Севастополя за 1985-2019 гг. Для моделирования пространственного распределения величины среднемесячной температуры воздуха в августе были использованы три математические модели, в том числе одна авторская. На основании полученных результатов была построена цифровая крупномасштабная карта пространственного распределения среднемесячной температуры воздуха в августе на территории Крымского полуострова и выделено 5 зон по среднемесячной температуре в августе. Использование данных моделей в ГИС (геоинформационная система) дает возможность автоматизировать анализ степени пригодности территории для возделывания винограда.

The original study on the distribution of the average monthly temperature in August on the territory of the Republic of Crimea was carried out by staff scientists of the Agroecology Sector. It has been proven many times that air temperature has a great influence on the growth, development and quality indicators of a grape plant. Air temperature in August has a special effect on a crop quality, since it is during this very period the best assimilation of carbon by leaves is observed, resulting in sugar accumulation and acidity decrease. The materials used were the SRTM-3 digital terrain model of the Crimean Peninsula and long-term average annual data of meteorological observations in 17 meteorological stations of Crimea and Sevastopol for the period of 1985-2019. To model spatial distribution of the average monthly air temperature in August, three mathematical models, including one authorial, were used. Digital large-scale map of spatial distribution of the average monthly air temperature in August on the territory of the Crimean Peninsula was compiled basing on the results obtained. Five zones were identified according to the average monthly temperature in August. Using of these models in GIS (geoinformation system) makes it possible to computerize the analysis of applicability of the territory for grape cultivation.
New wine grape variety ‘Nika’ selected in the Institute Magarach
Authors: Лиховской Владимир Владимирович , Волынкин Владимир Александрович , Студенникова Наталия Леонидовна , Котоловець Зинаида Викторовна , Олейников Николай Петрович , Петров Валерий Семенович
Published: March 2021

Селекционерами Института «Магарач» создан новый сорт винограда технического направления использования с окрашенной ягодой и антоциановой окраской мякоти, отличающийся от сорта-эталона Антей магарачский высокой продуктивностью, окрашенным соком, устойчивостью к биотическим и абиотическим стресс-факторам биосферы. Элитная форма, оформленная как новый сорт винограда, выделена из популяции сеянцев комбинации скрещивания Цитронный Магарача × Неркарат 1996 г. при комплексном изучении популяций технических форм винограда с окрашенным соком. В статье представлены основные ампелографические и биолого-хозяйственные параметры, которыми характеризуется новый перспективный сорт: средне-поздний срок созревания (10.09), продукционный период - 151 день. Рекомендуемая форма куста - кордон на среднем штамбе. Нагрузка - 6 глазков на рожке (4 рожка). Схема посадки - 3 х 1,5 м. Профилактические обработки против болезней грибной этиологии - 3-4 раза в сезон. Содержание в ягодах при технологической зрелости сахаров - 22,4 г/100см, титруемых кислот - 8,7 г/дм. Массовая концентрация общих фенольных веществ - 367,0 г/дм. Урожай рекомендуется использовать для приготовления сухих и десертных вин. Дегустационная оценка молодых виноматериалов: сухих - 7,75 балла, десертных - 7,82 (по 8-балльной шкале).

Selection breeders of the Institute Magarach have created a new wine grape variety with a colored berry and anthocyane pulp color, different from the example variety ‘Antei magarachskiy’ in high yielding capacity, colored juice, resistance to biotic and abiotic stress factors of biosphere. The quality form, isolated as a new grape variety, was separated from the population of seedlings of a crossing combination ‘Tsitronnyi Magaracha’ × ‘Nerkarat’ in 1996 during comprehensive study of populations of wine forms of grapes with colored juice. The article presents main ampelographic, biological and economical parameters peculiar for new promising variety: medium-late ripening date (10.09), production period - 151 days. The recommended form of bush is a cordon on a medium trunk. Loading is 6 eyes on a cane (4 canes). Planting scheme is 3 x 1.5 m. Preventive treatment against fungal diseases is provided 3-4 times a season. The content of sugars in technologically mature berries is 22.4 g / 100 cm3, of titratable acids - 8.7 g / dm3. Mass concentration of phenolic substances in total is 367.0 g / dm3. The crop yield is recommended for dry and liqueur wine production. Tasting assessment of young base wines: dry - 7.75 points, liqueur - 7.82 (according to 8-point scale).
The Crimean Spindle as a prospective crown shape for growing fruit trees in intensive gardens of Crimea
Authors: Бабинцева Нина Александровна , Фоменко Тарас Григориевич
Published: March 2021

В статье освещены результаты технологической оценки перспективной формы кроны - «крымское веретено» с сортами Бреберн, Джалита и Ренет Симиренко на подвое ЕМ-IХ в условиях Крыма. Целью исследований является изучение технологических характеристик формы кроны для создания высокоплотных садов. Работа проводится по методикам полевых исследований с плодовыми культурами. Установлено, что за счет использования технологически нетрудоемкой формы кроны обеспечивается урожайность в 29,5 т/га, на шестой год после посадки сада, с выходом товарной продукции до 99 %. Крона имеет компактные размеры: параметры горизонтальной проекции варьируют от 1,8 м (сорта Джалита, Бреберн) до 2,2 м (сорт Ренет Симиренко); объём - от 2,7 до 3,1 м. Затраты ручного труда находятся в прямой зависимости от биологических особенностей сорта. Трудоемкость обрезки 1 га сада с обозначенной формой кроны составляет от 84,4-86,7 (сорта Джалита, Ренет Симиренко) до 124,9 чел./ч (сорт Бреберн). При соблюдении всех технологических приемов формирования кроны, высокой агротехники и капельного орошения обеспечивается ежегодная урожайность и высокое качество продукции, при минимальных затратах труда.

The article highlights the results of technological assessment of a promising crown shape - a Crimean Spindle with ‘Brebern’, ‘Dzhalita’ and ‘Renet Simirenko’ varieties on the ‘EM IX’ rootstock in the conditions of Crimea. The goal of the research is to study technological characteristics of the crown shape for creation of ultra-dense gardens. The work is carried out according to the methods of field study with fruit crops. It has been established that due to the use of a technologically labor saving crown shape, cropping capacity of 29.5 t/ha is provided on the sixth year after planting the garden, with a commercial yield of up to 99%. The crown has compact dimensions with the parameters of horizontal projection of the crown varying from 1.8 m (‘Dzhalita’, ‘Brebern’) - to 2.2 m (‘Renet Simirenko’), and volume - from 2.7 to 3.1 m. The cost of manual labor is in direct relationship to the biological characteristics of variety. Labor intensity of pruning 1 hectare of a garden with the above-mentioned crown shape ranges from 84.4 - 86.7 (‘Dzhalita’, ‘Renet Simirenko’) to 124.9 m/hrs. (‘Brebern’). If all technological methods of crown shaping, high agricultural technology and drip irrigation are obeyed, the annual cropping capacity and high quality products are ensured with minimal labor costs for cultivation.
Аdaptive combined image coding with prediction of arithmetic code volume
Authors: Sadiq B J.S , Tsviatkou V. Yu. , Bobov М. N.
Published: March 2021

The problem of increasing the efficiency of coding of halftone images in the space of bit planes of differences in pixel values obtained using differential coding (DPCM – Differential pulse-code modulation) is considered. For a compact representation of DPCM pixel values, it is proposed to use a combined compression encoder that implements arithmetic coding and run-length coding. An arithmetic encoder provides high compression ratios, but has high computational complexity and significant encoding overhead. This makes it effective primarily for compressing the mean-value bit-planes of DPCM pixel values. Run-length coding is extremely simple and outperforms arithmetic coding in compressing long sequences of repetitive symbols that often occur in the upper bit planes of DPCM pixel values. For DPCM bit planes of pixel values of any image, a combination of simple run length coders and complex arithmetic coders can be selected that provides the maximum compression ratio for each bit plane and all planes in general with the least computational complexity. As a result, each image has its own effective combined encoder structure, which depends on the distribution of bits in the bit planes of the DPCM pixel values. To adapt the structure of the combined encoder to the distribution of bits in the bit planes of DPCM pixel values, the article proposes to use prediction of the volume of arithmetic code based on entropy and comparison of the obtained predicted value with the volume of run length code. The entropy is calculated based on the values of the number of repetitions of ones and zero symbols, which are obtained as intermediate results of the run length encoding. This does not require additional computational costs. It was found that in comparison with the adaptation of the combined encoder structure using direct determination of the arithmetic code volume of each bit plane of DPCM pixel values, the proposed encoder structure provides a significant reduction in computational complexity while maintaining high image compression ratios.
Тotal probability formula for vector Gaussian distributions
Authors: Mukha V. S. , Kako N. F.
Published: March 2021

The total probability formula for continuous random variables is the integral of product of two probability density functions that defines the unconditional probability density function from the conditional one. The need for calculation of such integrals arises in many applications, for instant, in statistical decision theory. The statistical decision theory attracts attention due to the ability to formulate the problems in a strict mathematical form. One of the technical problems solved by the statistical decision theory is the problem of dual control that requires calculation of integrals connected with the multivariate probability distributions. The necessary integrals are not available in the literature. One theorem on the total probability formula for vector Gaussian distributions was published by the authors earlier. In this paper we repeat this theorem and prove a new theorem that uses more familiar form of the initial data and has more familiar form of the result. The new form of the theorem allows us to obtain the unconditional mathematical expectation and the unconditional variance-covariance matrix very simply. We also confirm the new theorem by direct calculation for the case of the simple linear regression.
Quantitative estimation of fuzzy crisis management
Authors: German О. V. , Kuznetsov М. V.
Published: March 2021

The model and the description of the numerical assessment of uncertain (fuzzy) controls in the implementation of the crisis management in the so-called "gray area", combining transient states of the system, is presented in the article. The behavior of the economic (financial) system is described by a multidimensional vector, for example, the Altman five-factor model. The estimates given by this model are distributed over three ranges, corresponding to the stable state of the system, the negative state, and the "gray area" in which the trajectory of movement towards the bankruptcy zone is outlined and consisting of the states which can be evaluated by means of fuzzy variables, characterizing proximity to the bankruptcy zone. According to the values of these state variables, controls must be implemented to bring the system into a stable favorable zone. The general apparatus for determining crisis management strategies is sufficiently developed, at the same time, the determination of the numerical characteristics of these controls, as an independent task, requires further formalization and development of numerical methods. This article contains one possible formalization  and its implementation using the analytical library of the Python language. The presented model and algorithm are quite universal and can be relatively simply adapted taking into account the specific features of the problem. A distinctive feature of the approach proposed in the article, for example in comparison with neural network models, is a decrease in the degree of subjectivity in the choice of the control rules. This degree is determined here not by the function of the corresponding fuzzy measure, but by the weight coefficients of the significance of crisis management options and the real resources for their implementation.
Assessment of the necessary conditions for robot-assisted surgery in the nasal cavity
Authors: Mareev Oleg V. , Mareev Gleb O. , Tsymbal Denis D. , Afonina Olga I.
Published: March 2021

Objectives - to determine the necessary conditions for performing robot-assisted operations in the nasal cavity.
Material and methods. We have investigated the movement of an endoscope in space by measurements based on high-resolution computed tomography (CT) data. A total of 50 CT scans of the paranasal sinuses were used for this purpose. The tomograms were randomly selected from among the patients of the ENT clinic of the Saratov State Medical University. The main parameters characterizing the movement of the endoscope in the nasal cavity under the conditions set by us are the magnitude of its linear displacement from the entry point and the angle of its deviation, measured in three planes - frontal, sagittal and horizontal, provided that the planes of these sections pass through the entry point during various operations. To control these measurements, we detected the displacements of the endoscope in space using an optical tracking system we made, as well as specialized software designed specifically for the purpose of optical tracking. With the help of this device, measurements were carried out on the skulls and their models, the silicone model for endoscopic examination K. Storz 723128, as well as during real endoscopic operations on the paranasal sinuses. All studies were combined into groups according to the standard protocols of endoscopic operations performed endonasally: Anterior ethmoidotomy, Posterior ethmoidotomy, Frontotomy, Sinusotomy, Sphenotomy, Adenotomy.
Results. The main characteristics of the movement of the endoscope in the nasal cavity at a given entry point in the nostril area were established - its maximum linear and angular displacement during various types of FESS interventions for adults.
The results obtained by us can serve as the main criteria for the development of a specialized robot assistant that holds and moves the endoscope in space during FESS.
INTERDISCIPLINARY APPROACH IN AUDIOLOGY – AN EXPERIENCE OF PEDIATRIC AMPLIFICATION
Authors: Tufatulin Gaziz Sh. , Koroleva Inna V. , Korkunova Maryana Sergeevna
Published: March 2021

Abstract
The aim of the study was to develop an algorithm for the interaction between an audiologist and speech-language therapist in initial amplification for hearing impaired children.
Methods. 219 children aged 2 months to 16 years with hearing impairments were divided into 2 groups. The experimental group consisted of children who got a special course of medical, psychological and pedagogical rehabilitation at the stage of initial fitting, based on the new algorithm of interdisciplinary interaction between an audiologist and a speech-language therapist. The control group included children with traditional procedure of hearing aids fitting, in which the audiologist didnt interact with the speech therapist.
Results. An algorithm for the interaction of an audiologist and speech-language therapist included 3 stages of hearing aids fitting (preparation, initial fitting, adaptation and fine tuning of hearing aids), the tasks of each specialist at these stages were identified, including the parents involvement in the process of fitting, a development of the protocol for the exchange of information between specialists. The algorithm was implemented in a special course of medical-psychological-pedagogical rehabilitation in the Center of Pediatric Audiology. It was found that in 1 month after the primary fitting among children who underwent this course, significantly more children used hearing aids for more than 8 hours a day and reached the integral criterion of effective hearing aids fitting compared with the control group. These children also took less time to adjust their hearing aid settings during repeated fitting sessions.
Conclusion. A structured interdisciplinary interaction between an audiologist and speech-language therapist at the stage of initial amplification significantly increases the effectiveness of medical technology for restoring hearing function in children.
Recurrent paratonsillitis of odontogenic origin
Authors: Chechko Artem N. , Vladimirova Tatyana Yu.
Published: March 2021

The recurrent paratonsillitis caused by medium dental caries is an extremely rare condition. Patients with this pathology are admitted to otorhinolaryngological departments and in most cases they do not actively present odontogenic complaints. Currently, the algorithm for the mandatory examination of patients with paratonsillitis does not include an examination by a dentist.

This article presents a clinical case of recurrent paratonsillitis in a 22-year-old man. His admission due to this condition was the third during the year. The disease proceeded without signs of affection of the palatine tonsils. In this regard, the patient was examined according to clinical recommendations using additional research methods to verify the source of infection. To exclude the formation of peritonsillar abscess, the non-invasive diagnostic methods were used - transoral ultrasound of peritonsillar tissues.

This examination revealed an abnormal arrangement of the external carotid artery branches. This circumstance determined the choice of treatment tactics, excluding the use of relaxing incisions in the peritonsillar area. A laboratory study of saliva determined the activity of -amylase, pH value was measured to exclude an inflammation of the salivary glands. An additional examination revealed the odontogenic etiology of paratonsillitis.
Meta-prebiotics: a new way to control the intestinal microbiota
Authors: Кrylova Irina А. , Kupaev Vitalii I. , Lyamin Аrtem V. , Ismatullin Danir D.
Published: March 2021

Objectives to analyze the quality and quantity of the intestinal microflora of relatively healthy people and/or of those who did not visit a doctor in the last 3 months, before and 1 month after taking a meta-prebiotic complex containing dietary fiber (inulin) and oligosaccharides (oligofructose).
Material and methods. We examined the individuals who considered themselves healthy and/or did not consult a doctor during the past 3 months. To detect the presence of dyspeptic complaints, the clinical data were collected. 114 people with different suboptimal status and non-specific dyspeptic complaints were chosen for the study and underwent the clinical examination for the degree of gut microbiota imbalance before taking the meta-prebiotic complex. 78 people followed the course of the meta-prebiotic and were examined after 1 month after the start.
Results. We have obtained new data on intestinal biocenosis at various suboptimal status in relatively healthy people: the total number of bacteria is insufficient. When using a meta-prebiotic complex containing inulin and oligofructose, the composition of the intestinal microflora was improved due to the decreased cases of detection of opportunistic enterobacteria and other gram-negative microorganisms.
Conclusion. The significance of studying the intestinal microbiotic complex in patients with the increased suboptimal health status is proved, and the earlier active screening of this category of patients is recommended.
Quality of milk consumed in Samara region: An analysis of milk physical and chemical characteristics
Authors: Sazonova Olga V. , Gorbachev Dmitrii O. , Borodina Lyubov М. , Gavryushin Mikhail Yu. , Synbulatov Irek V. , Minko Olga V.
Published: March 2021

Objectives an analysis of physical and chemical indicators of milk quality produced under the most popular brands in the Samara region.
Material and methods. The study was selective and prospective, focused on the physical and chemical indices of milk quality. The sampling was based on the results of the assessment of the frequency of consumption of various brands of milk by the population of the Samara region. The analysis included five samples of milk of different brands, purchased in the retail food store chain, and assessed their various physical and chemical indicators. All measurements were performed in accordance with the regulatory documentation.
Results. Only 1/3 part of respondents (32.6%) included milk in their daily diet. All five milk samples subjected to physical and chemical examination met the requirements of the current regulatory documentation. However, in assessing the nutritional value of the samples by mineral composition, it was found that the actual content of phosphorus and calcium is significantly lower than the values of the corresponding indicators set out in the handbook "Chemical composition and calorie content of Russian food products" that is used as a guide by nutrition specialists.
Conclusion. Milk purchased in the food store chain met the safety requirements for physical and chemical indicators. The reduced level of milk consumption among the population of the Samara region requires management decisions. The actual chemical composition of this product, which has regional and seasonal characteristics, should be taken into account in the development of diets for defined population groups.
Variability of the level of portal vein formation registered by computed tomography
Authors: Kolsanov Aleksandr V. , Myakotnykh Maksim N. , Tolstov Anatolii V. , Mironov Aleksei A.
Published: March 2021

Objectives to study the variability of the level of portal vein formation in relation to the spinal column according to computed tomography data.
Material and methods. The study evaluated the results of 100 multispiral (multislice) computed tomography (MSCT) scans of the abdominal organs done in the period of 2018-2019 and collected in the archive of the Clinics of the Samara State Medical University. For mathematical modeling and the creation of three-dimensional models of the vascular bed, we used the plug-ins in the software "Luch" and "Avtoplan" that made it possible to obtain the three-dimensional models based on MSCT data. The level of portal vein formation relative to the spinal column was studied.
Results. The level of portal portal vein formation relative to the spinal column varied from the lower edge of the twelfth thoracic vertebra (ThXII) to the upper edge of the second lumbar vertebra (LII). Most often, the portal vein was formed at the level of the middle of the first thoracic vertebra body (LI). This level of portal vein formation was detected in 23% of cases. In 64% of cases, the portal vein was formed at the level of the right edge of the vertebra.
Modeling of restenosis of main arteries after the intravascular stenting interventions
Authors: Germanova Olga A. , Germanov Vladimir A. , Shchukin Yurii V. , Germanov Andrei V. , Piskunov Maksim V. , Burmistrov Andrei E. , Yusupov Rinat Yu. , Galati Giuseppe
Published: March 2021

Objectives to study the mechanism of restenosis after the intra-arterial stenting using the original device for modeling of intra-arterial blood flow.
Material and methods. To perform the experiment, we have created the original device simulating the intra-arterial blood flow. A glass tube of rotameter was the imitation of the arterial vessel. The closed system was filled with the liquid imitating blood, specifically the solution of glycerin the same viscosity as the human blood plasma. Using our original model of intra-artetial blood flow, we were able to study the intra-arterial hemodynamics under different conditions of cardiovascular system functioning, including arrhythmias.
Results. In extrasystolic arrhythmia, during the spread of the first post-extrasystolic wave, we observed the intensive impact of pressure wave (the indicator was the silk thread) on the vessel walls with forming of reflected and standing waves. Putting the piezo crystal probe of pressure inside the tube, we verified our observations. The increase of pressure during the spread of the first post-extrasystolic wave in multiple measurements had a mean value of 160% in comparison with the pressure during the regular heart rhythm.
Conclusion. The hydraulic shock appears during the spread of the first post-extrasystolic wave in the arterial vessel. Its effect on hemodynamics grows in case of the frequent extrasystoles and allorhythmia. The mechanical impact of hydraulic shock in extrasystoles can be the starting point of the restenosis onset and progressing in the intra-arterial stent.
Features of social and hygienic characteristics in families with women of late reproductive age, raising children after ART
Authors: Kuzmichev Kirill A. , Tyumina Olga V. , Chertukhina Olga B. , Sapunkova Yuliya A. , Konovalov Oleg E.
Published: March 2021

Objectives to study the social and hygienic characteristics of families of women of late reproductive age (LRA) who are raising children, conceived by assisted reproductive technology (ART) in Samara region.
Material and methods. In the study, 500 women of late reproductive age (LRA) and their children took part using the "pair of copies" method: the main group included women of LRA giving birth with ART (n=250), the control group LRA women giving birth without ART (n=250). The average age of mothers at the time of birth was 39.110.5 years in the main group and 36.950.76 years in the control group. The social and hygienic examination involved the data collection from children's medical records and interviewing mothers with the help of specially designed questionnaires that included questions on medical activity and social factors.
Results. The main and control groups presented the differences in the medical activity. The families with children born after ART showed a more attentive attitude to the child's health, strict adherence to the recommendations of the doctor in case of illness, and observance of the daily routine. However, in terms of social adaptation and physical development, the children born after ART are inferior to those in the control group: they spend less time outdoors and, as a rule, do not attend additional study groups or sports sections.
Cantilever damage evaluation using impedance-loaded SAW sensor with continuous wavelet analysis and machine learning
Authors: Suzuki Sena , Kondoh Jun
Published: March 2021

To monitor the health of large-scale structures, a wireless measurement system, such as a bridge, is required. One of the methods of monitoring the health of large-scale structures involves the application of an impedance-loaded wireless surface acoustic wave (SAW) sensor. Additionally, a pressure-sensor-loaded SAW sensor can detect the vibration of a cantilever. In this study, a continuous wavelet transform (CWT) is adopted to analyze the sensor responses. The CWT results obtained were classified into two categories based on the attenuation at each frequency, which include the exponential or linear type. Furthermore, machine learning was applied to evaluate cantilever damage. The results indicate that a high accuracy evaluation of damage is feasible with the proposed method.
Simulation study about negative capacitance effects on recessed channel tunnel FET
Authors: Kim Shinhee , Go Seungwon , Kim Sangwan
Published: March 2021

A recessed-channel tunnel field-effect transistor (RCTFET) with intrinsic Si layer between gate and source/drain is proposed and its electrical characteristics are examined by technology computer-aided design simulation for lower subthreshold swing (SS) and higher on-off current ratio (I
ON/I
OFF) than conventional planar TFET. Although the SS and I
ON/I
OFF of RCTFET can be improved by optimizing the length of the intrinsic Si layer (L
T), there is a trade-off in terms of turn-on voltage (V
ON). To address this issue, a ferroelectric (FE) layer has been adopted to the gate stack for negative capacitance (NC) effects. Based on the study, the NC effects not only reduce V
ON but also enhance the SS and I
ON/I
OFF characteristics. As a result, the optimized NC-RCTFET shows 3 times higher I
ON and 23 mV dec−1 smaller average SS with 1 V lower V
ON than the conventional RCTFET.
Infiltration of water vapor into multi-layer ceramic capacitors under highly accelerated temperature and humidity stress tests
Authors: Saito Yoshito , Oguni Toshimi , Nakamura Tomoyuki , Nada Kenichi , Sano Harunobu , Hashiguchi Minako , Sakaguchi Isao
Published: March 2021

Although it has been suggested that infiltration of water vapor into multi-layer ceramic capacitors (MLCCs) can increase leakage current, few studies have reported how this increase is directly linked to the infiltration. In this work we performed accelerated temperature and humidity stress tests with heavy water as a tracer and investigated, using secondary ion mass spectrometry, whether traces of water vapor could be detected in MLCCs. In particular, deuterium was found in areas where an augmented leakage current was detected. It is clear that infiltration of water vapor into MLCCs increased the leakage current. This finding could lead to further improvements in MLCCs.
Improving AlN crystalline quality by high-temperature ammonia-free microwave plasma chemical vapor deposition
Authors: Zhang Yao , Xing Yanhui , Han Jun , Zhang Xuan , Zhang Xuemin , Zhang Li , Zhang Liguo , Ju Tao , Zhang Baoshun
Published: March 2021

Microwave plasma chemical vapor deposition (MPCVD) offers us a new option to realize high-temperature epitaxy. In this work, AlN films were deposited on 6H-SiC substrates by MPCVD. The epitaxy was carried out without the participation of ammonia. The results reveal that workable temperature for AlN epitaxy is from 1300 °C–1450 °C. X-ray rocking curves and X-ray photoelectron spectroscopy confirm the improved crystalline quality of AlN grown at higher temperatures. The narrowest FWHM of X-ray rocking curves for AlN (0002) and (10–12) are 142 and 350 arcsec at 1450 °C, respectively. Possible growth mechanisms are suggested.
巴氯芬联合综合康复治疗对脑卒中后肌张力障碍的疗效观察
Authors: 朱 竹青
Published: March 2021

目的:分析巴氯芬联合综合康复治疗对 卒 中 后 肌 张 力 障 碍 的 疗 效。 方 法:将2019.06-2020.06 本 院 收 治 的 卒 中 后肌张力障碍共64例患者进行研究,依据随机数表法分成对 照 组(予 以 常 规 药 物 加 综 合 康 复 治 疗)和 观 察 组(于 对 照 组 基 础 上加用巴氯芬片)各32例,统计并比较两组治疗前后的上下肢改良 Ashworth量表分级、Fugl-Meyer运动功能评分及生活自理能力(Barthel)评分情况。结果:治疗后,观察组上 下 肢 改 良 Ashworth量 表 分 级 优 于 对 照 组,两 组Fugl-Meyer及Barthel评分均升高,且观察组Fugl-Meyer及Barthel评分高于对照组(P
浅谈心理护理的社会价值
Authors: 桂 人庆
Published: March 2021

公元2020年初,一场异常罕见的重大疫情(新冠 肺 炎)牵 动 亿 万 中 国 人 民 的 心,疫 情 蔓 延 之 迅 速、牵 涉 地 域 之 广,给生命健康救治和应急防控管理带来严峻考验和挑战,面 对 突 发 疫 情,药 物 与 疫 苗 的 研 发 需 要 周 期 性,心 理 治 疗 再 一 次 被 众 人所重视.该方法是护理工作中,护士通过运用言语和非言 语 的 方 式 影 响 患 者 或 求 助 者(包 括 应 用 心 理 学 和 正 常 的 医 疗),积 极引导病人的心理活动,从而实现护理目标的心理治疗方法,以达到促进患者康复的目的。
An experimentally verified method to predict & measure all forms of Cyber-Risk
Authors: Storti Riccardo
Published: March 2021

A precise & unambiguous mathematical
definition of Cyber-Risk is developed, yielding an experimentally validated
solution demonstrating ‘How to Predict & Measure Cyber-Risk’ for any Internet Connected Information System (ICIS) to greater than 98.07%
accuracy. Moreover, it is shown that the solution holds for all scales of ICIS,
from an Application level to an Enterprise level. In addition, it is shown that
Test Effort Estimation (TEE) quantifies
Cyber-Confidence, which in turn quantifies Cyber-Risk. Hence, TEE is a Mission Critical Activity (MCA)
when formulating Cyber-Risk Management Strategies & may be utilised prior
to project commencement, in-flight or post facto as an assessment &/or
auditing tool. The TEE Model Construct developed is a statistical based
methodology whereby the evaluations/decisions made, result in the contraction
or expansion of the ‘z-Score’ associated with an infinite population of
database records. The primary advantage of this approach is that very little
information is required client-side at the engagement stage in order to produce
peer acceptable estimates of the required test effort, & to accurately
predict & measure the associated Cyber-Risk. This approach empowers clients & service
providers to precisely define whatever level of Cyber-Risk is to be
contractually delivered, capable of being absorbed, or prepared to be absorbed
by consensus. With the aid of a
decision table, estimators are able to articulate & convey to the
appropriate authorities, various levels of Cyber-Risk commensurate with the
available resources. The
TEE Model Construct developed, presents an experimentally verified methodology,
cognizant of commercial realities, yielding the following key advantages; (i)
it requires minimal inputs, (ii) it
has a scientific foundation, (iii) it facilitates operational decision-making,
(iv) it quantifies Risk Based Testing (RBT), (v) it is simple, robust, flexible, consistent,
reusable & transparent, (vi) it is capable of scaling a projected solution
from a known solution, (vii) it embraces Continuous
Improvement Processes (CIP’s), (viii) it confines perceptual subjectivity
predominantly to three variables & (ix), it commercially exists as an
off-the-shelf product.
Hafidh, THE LEVEL OF KNOWLEDGE OF HEALTH CARE WORKERS WITH THE LATENT TUBERCULOSIS
Authors: Aji Prasetyo Hafidh Bagus , Adji Raden Mas Soerjo , Setiawan Andreas Arie , Pramudo Setyo Gundi
Published: March 2021

ABSTRACT

Background : Pulmonary tuberculosis is a contagious infectious disease caused by the Mycobacterium tuberculosis. Health workers have an increased risk of contracting tuberculosis, because they are exposed to TB in their workplaces. The absence of hospital control measures against TB infection makes the risk factor becomes high. Health workers often make contact with TB sufferers. In a good body condition, although infected by TB germs, it does not manifest as a disease or called latent TB. However, latent TB sufferers still have the risk of being active in certain conditions, which then becomes a source of new TB transmission. Objective: This study aims to look at the level of knowledge of health workers towards the incidence of Latent TB in the Hospital.

Method : The research method is cross-sectional using a sample of health workers who work in hospitals. The sample size of this study was 46 people using purposive sampling. This study has a variable Health worker knowledge about TB disease and Latent TB incidence. The method of data analysis using Chi Square Test.

Result : The results were not significant between the level of knowledge and the incidence of Latent TB in health workers (p = 0.584). While the use of masks with the incidence of latent TB had a significant relationship (p=0,001).

Conclusion : There is no significant relationship between the level of knowledge with the incidence of Latent TB in health workers. While the use of masks with the incidence of latent TB has a significant relationship.

Keywords : Tuberculin Skin Test, Awareness, Incident, Workplaces.
Perbedaan Skor BDI II (Beck depression Inventori) pada siswi dengan PMDD (Premenstrual Dysphoric Disorder) dan non PMDD
Authors: Wimala Dina , Hadiati Titis
Published: March 2021

Latar Belakang : Gangguan menstruasi dapat terjadi pada 90 % wanita dan 5-8% nya mengalami gangguan parah yaitu PMDD. 32% remaja perempuan usia 15-19 tahun dimana diagnosis depresi pada remaja lebih sering terlewatkan dibandingkan pada orang dewasa. PMDD dan depresi menyebabkan keluhan psikologis dan berdampak pada kualitas hidup seseorang, karena adanya emosi yang tidak terkontrol, terutama bila tejadi pada remaja. Deteksi PMDD dan depresi pada remaja sering terlewatkan hal ini disebabkan karena gejala yang menonjol adalah lekas marah, reaktivitas susasana hati dan gejala fisik yang tidak dapat dijelaskan sebabnya.

Tujuan : Mengetahui perbedaan skor BDI-II pada siswi dengan PMDD dan non PMDD

Metode : Penelitian ini merupakan penelitian kuantitatif dengan rancangan belah lintang. Sampel adalah siswi SMK yang memenuhi kriteria inklusi dan eksklusi. PMDD dinilai dengan kuesioner SPAF (Shortened Premenstrual Assessment Form) dan depresi dinilai dengan BDI-II (Beck Depression Inventory-II). Analisa data menggunakan uji Pearson Chi Square, Fisher’s Exact dan Mann Whitney.

Hasil : Penelitian ini diikuti oleh 135 responden, 60 (44,4%) responden PMDD dan 75 (55,6%) responden non PMDD dengan median skor BDI-II untuk kelompok PMDD adalah 19 (2-39) dan non PMDD 11 (0-33). Terdapat perbedaan skor BDI-II yang signifikan pada siswi dengan PMDD dan non PMDD dengan p value <0,001.

Simpulan : Terdapat perbedaan skor BDI-II yang bermakna pada siswi dengan PMDD dan non PMDD.

Kata Kunci : BDI-II, PMDD, remaja
Pengaruh Robotic Therapy dalam Meningkatkan ROM dan Memperbaiki Tonus Pasien Stroke Iskemik
Authors: Pangesti Adelia , Julianti Hari Peni , Pudjonarko Dwi , Rahmawati Maria Belladonna , Ismail Rifky
Published: March 2021

Latar Belakang:

Setelah serangan stroke, penderita umumnya mengalami hemiparesis ekstremitas superior. Keterbatasan gerakan terjadi karena penurunan ROM sendi siku dan abnormalitas tonus otot lengan atas sehingga penderitanya perlu menjalani terapi rehabilitasi. Selain terapi konvensional, kini telah berkembang robotic therapy dalam memperbaiki fungsi motorik.

Tujuan:

Membuktikan bahwa efek robotic therapy dalam meningkatkan ROM aktif sendi siku dan memperbaiki tonus otot lengan atas pasien stroke iskemik lebih baik daripada efek latihan rehabilitasi konvensional.

Metode:

Penelitian quasy-experimental dengan desain two group pre-test and post-test terhadap pasien stroke iskemik rawat jalan di Rumah Sakit Nasional Diponegoro dan Rumah Sakit William Booth Semarang (n= 18) yang dipilih secara consecutive sampling. Intervensi berupa pemberian robotic therapy pada kelompok robot dan  latihan rehabilitasi konvensional pada kelompok kontrol sebanyak 16 kali. Uji beda data pre-test dan post-test pada kelompok robot dilakukan dengan Uji Wilcoxon. Uji beda data pre-test dan post-test pada kelompok kontrol dilakukan dengan Uji Wilcoxon dan Uji t-berpasangan. Uji beda pre-test dan post-test antar kelompok menggunakan uji Mann-Whitney dan Uji t tidak berpasangan.

Hasil:

Kelompok robot mengalami peningkatan ROM yang tidak signifikan (p= 0,593) dan perbaikan tonus otot yang signifikan (p = 0,025). Kelompok kontrol mengalami penurunan ROM yang tidak bermakna (p = 0,980) dan perbaikan tonus otot yang tidak signifikan (p = 0,081).

Kesimpulan:

Terdapat perbaikan signifikan  nilai tonus otot lengan atas pasien stroke iskemik sesudah menjalankan latihan dengan exoskeleton robotic hand.

 

Kata Kunci: Stroke,  ROM sendi siku, tonus otot, exoskeleton robotic