bluuebunny/crossref_metadata_2025 huggingface dataset:
KAJIAN VARIANCE MEAN RATIO PADA SIMULASI SEBARAN DATA BINOMIAL NEGATIF
Authors: Nisa Choirun , Aidi Muhammad Nur , Sumertajaya I Made
Published: December 2020

The negative binomial distribution is one of the data collection counts that focuses on success and failure events. This study conducted a study of the distribution of negative binomial data to determine the characterization of the distribution based on the value of Variance Mean Ratio (VMR). Simulation data are generated based on negative binomial distribution with a combination of p and n parameters. The results of the VMR study on negative binomial distribution simulation data show that the VMR value will be smaller when the p-value is large and the VMR value is more stable as the sample size increases. Simulation data of negative binomial distribution when p≥0.5 begins to change data distribution to the distribution of Poisson and binomial. The calculation VMR value can be used as a reference for detecting patterns of data count distribution.
Сomparative analysis and prospects of the use of multi -fuel micro-thermal power stations on the basis of the steeling engine for rural areas
Authors: Mekhtiyev A. D. , Al'kina A. D. , Yugay V. V. , Esenzholov U. S. , Kaliaskarov N. B.
Published: December 2020

THE PURPOSE. Conducting a comparative analysis of the problems of efficient power supply torural consumers. Offering solution stop roblems by using multi-fuelmicrothermal power plants based on the Stirlingengine for ruralareas. Justification and description of prospects for the use of multi-fuelmicro-thermal power plants based on the Stirlingengine for ruralareas. METHODS. Methods of computer simulation of thermodynamic processes of multi fuel micro-thermal power plants based on an engine based on an engine with external heat supply are used. A computer simulation method has been developed that allows constructing a PV diagram and processes of changes in the pressure and volume of the working fluid depending on the position of the working piston and the displacer. Mathematical methods of analysis and description of the thermodynamic cycle of an engine with external heat supply are used. RESULTS. Выполнен анализ достижений и уровня современных достижений в области микро электростанций. Установлено направление развития научных исследований по разработке двигателя с внешним подводом тепла. Приведены некоторые результаты исследований по эффективности работы двигателя с внешним подводом теплоты. CONCLUSIONS . Одним из решений проблемы эффективного электроснабжения сельских потребителей может быть внедрения микро тепловых электростанций. Их использование позволит снизить стоимость электроэнергии и обеспечить ее бесперебойную поставку. Основой микро тепловой электростанции является двигатель с внешним подводом теплоты, работающий по принципу Стирлинга.
Investigation of the evaporation in the boundary layer
Authors: Shpakovskii R. P.
Published: December 2020

THE PURPOSE. Consider a stationary diffusion problem when a pure liquid evaporates from a flat surface of evaporation into a laminar boundary layer of a forced gas flow (in the absence of deepening of the evaporation surface and wave formation on it) at the number. In the classical model of the diffusion problem of the flow of mass from a flat surface into the laminar boundary layer, only the additional slowing down effect arising in this case is taken into account. However, the resulting solution does not correspond to the general case of evaporation, since in this case the mass transfer can significantly depend on the thermal conditions of the problem, conjugate in phases; in criterion form, this circumstance is expressed by the appearance of an additional parameter [1-3]. Note that this parameter is related to the value of the derivative of the relative concentration along the transverse coordinate on the evaporation surface. In the course of the proposed solution, the temperature of the evaporation surface and, accordingly, the value of this parameter were taken constant. METHODS. When solving the problem, we used approximate numerical methods for integrating the diffusion equation (Euler's method, integro-differential equation method, and also the method of successive approximations). In this case, the retarding effect of the vapor flow from the surface of the phase transition was assumed to be relatively insignificant in our case (which corresponded to the experimental data used in [1-3]. RESULTS. The article analyzes the well-known classical solution of the diffusion equation according to the Hartnett - Eckert model and notes that the result obtained in this case does not correspond to the general case of evaporation, when the mass transfer in the gas phase also depends on the complex. Based on the solution obtained in our work, we come to the conclusion that the effect of this parameter manifests itself in an increase in the thickness of the diffusion boundary layer. In addition, this effect is also associated with the value of the longitudinal coordinate, being more noticeable at its small values. CONCLUSION. The indicated evaporation pattern can be physically explained by a relatively larger amount of evaporated substance than in the “standard” case (since values, in turn, are associated with higher values of the evaporation surface temperature). It can also be assumed that in the region of the gas flow immediately adjacent to the evaporation surface, these factors manifest themselves in a similar way in the case of turbulent flows.
Extracorporeal Septoplasty for anterior septal deviation and deviated nose
Authors: Sigdel Brihaspati
Published: December 2020

Background: Deviated nose and septum is challenging, which results in functional and cosmetic problems. It blocks the nose and makes person ugly. The classical septoplasty approach becomes unsuitable for such severe deviations. Extracorporeal septoplasty is a surgical technique for correcting a severely deviated nasal septum, which also corrects the aesthetic part of the nose. The objective of this study was to describe extracorporeal septoplasty for Deviated nose and anterior septal deviation.

Methods: A prospective observational outcome study was done in patients with Deviated nose and anterior septal deviation who underwent extracorporeal septorhinoplasty. Preoperative and postoperative evaluation was performed using a photographs, computerized tomography (CT) scan, and Nasal obstruction symptoms evaluation scale.

Results: A total of 38 consecutive patients were enrolled, out of which majority were male (24, 63.2%) with only 14 (36.8%) female. The ratio of male female was 1.7:1. All the subjects had deviated nasal septum. Among these, nose deviation was externally noticeable in 20 (52.6%) cases, whereas in remaining cases it was inconspicuous. There were 21(55.3%) patients where Nasal Septum was deviated to the right side followed by 17(44.7%) with left side deviation. There was a significant improvement in mean nasal obstruction symptoms evaluation postoperatively (71.2 versus 22.7 with p value equal to 0.01). According to the pre and postoperative photographs 17(44.7%) patients had good improvement, nine (23.6%) showed excellent improvement and the result was fair in six (15.7%) patients.

Conclusions: Extracorporeal septoplasty is effective in improving both nasal airway function and aesthetics in patients with severe Nasal Septal deviation.
Choices of Post-graduation Medical specialization among final year medical students, interns and medical officers working in different hospitals in Pokhara, Nepal
Authors: Acharya Karuna , Kandel Ishwar Sharma , Shrestha Abhisek
Published: December 2020

Background: The intricate decision to pursue finally one speciality following post bachelor’s medical degree is affected by many factors in Nepal. The aim of the study was to elucidate the preference of specialty among final year medical students, interns and medical officers currently working in Pokhara city of Nepal.

Methods: Observational cross-sectional survey, conducted from 1st Feb to 30th April, 2020. 127 participants including doctors working in private and government hospitals of Pokhara, Nepal. Structured questionnaire was prepared and distributed to participants. Data were entered, validated in Microsoft Excel 2017 and analyzed in SPSS, version 25. Chi-squared and t-tests were applied for categorical and continuous variables respectively to test the statistical significance at 95% confidence level.

Results: Of the total respondents, 30.46% reported clinical subjects as their preferences, followed by any clinical and basic subjects (20.31%). For clinical, Internal medicine was preferred by 15.6%, Surgery by 9.3%, Dermatology by 6.25%, Orthopedics by 4.68%, Pediatrics, Health care management, Psychiatry, Otorhinolaryngology, Gynecology and Ophthalmology were reported by 3.9%, 2.3%, 1.5% and rest 0.7%, respectively. 64% of the participants chose their speciality based on their keen interest, and while 17.9%, 12.5% and 3.1% closed due to pressure from family members, experience while working and anticipation of good quality of life respectively.

Conclusion: High proportion of the respondents’ preferred clinical speciality. Most opted clinical speciality was Internal Medicine. This may lead to saturation in those areas of specialization and as a result leave the population underserved in other important areas basic science involving clinical teaching and learning.
Medical education in Nepal during the COVID-19 pandemic: challenges and opportunities
Authors: Subedi Nuwadatta , Paudel Sabita
Published: December 2020

Not available
Модель потребления и современные проблемы глобализации
Authors: Бальцерович-Шкутник Мария , Шкутник Влодзимеж
Published: December 2020

Процесс глобализации, который привел к экономическим, социальным и политическим изменениям, происходящим в последние десятилетия, также существенно повлиял на потребительское поведение и отношение потребителей к рынку труда. Это проявляется, прежде всего, в изменениях в структуре занятости и оказывает косвенное влияние на процессы управления как на уровне предприятия, так и на уровне человеческих ресурсов. Основными причинами изменений потребительского поведения, наблюдаемых в последние десятилетия в Польше, являются, прежде всего, повышение уровня жизни общества, глобализация экономики и рынков, а также развитие производства и распределения товаров и услуг. Цель статьи – показать, не является ли появление новых тенденций потребления на польском рынке зримо связанными со структурой рынка труда и тем самым косвенно вынуждающими к изменению принципов хозяйствования и попытке оценить силу этого воздействия. Уровень и структура потребления тесно связаны с состоянием экономики, экономической ситуацией и увеличением богатства общества. Статья посвящена анализу динамики изменения структуры занятости в базовых секторах экономики в связи с изменением модели потребления, рассматриваемой как эхо глобализационных процессов. В работе будет уделено внимание новым тенденциям, заметным в потребительском поведении, а именно потребительскому гедонизму, экологизации потребления и деконсумации.
Устойчивое развитие автомобилестроения в условиях нарастания глобальной турбулентности
Authors: Парцвания В. Р. , Слука Н. А. , Сызранцев А. Ю. , Воробьев И. С.
Published: December 2020

В статье аргументируется нарастание влиятельности крупного бизнеса в мировой экономике и степени его социальной ответственности в условиях глобальной турбулентности. На примере индустрии автомобилестроения раскрыты положительные эффекты различных сторон экономической деятельности мультинациональных корпораций с опорой на парадигму устойчивого развития. Выявлены новые вызовы, стоящие перед автомобильными корпорациями и провоцируемыми общемировым трендом вовлечения бизнеса в достижение целей устойчивого развития. Анализируются стратегии ряда корпораций по преодолению этих вызовов и усилению позиций на глобальном рынке.
Monitoring System of a High-Rise Building during Operation
Authors:   “Georeconstruction” Institute (4, Izmaylovsky Prospect, St. Petersburg, 190005, Russian Federation), Shashkin A.G. , Shashkin K.G. ,   “Georeconstruction” Institute (4, Izmaylovsky Prospect, St. Petersburg, 190005, Russian Federation), Evseev N.A. ,   “Georeconstruction” Institute (4, Izmaylovsky Prospect, St. Petersburg, 190005, Russian Federation), Lukin V.M. ,   JSC “Gazpromneft Eastern-European Projects” (3–5, litera, Pochtamtskaya Street, St. Petersburg, 190000, Russian Federation)
Published: December 2020

Monitoring of structures during operation is a direct requirement of the current legislation, especially relevant for technically complex structures, which include high-rise buildings. It is important not only for ensuring mechanical safety during construction operation, but also as a tool for reverse analysis of the actual stress-strain state of structures and foundations for compliance with the design calculation forecast, which should ultimately contribute to the development of construction theory and practice. The article is devoted to the organization of monitoring during the operation of the Lakhta Center skyscraper in St. Petersburg. The basis of the monitoring system is a design model of the building that interacts with the base making it possible to give the monitoring an interactive character. Particular attention is paid to the definition of «alarms» that make it possible to signal timely about the occurrence of negative trends helping to eliminate the occurrence of an emergency. It is shown that the calculations for justifying the criteria of monitoring systems differ significantly from the usual calculations when designing. The article defines the features of a workable monitoring system, to which the system implemented in practice fully corresponds. A comparison of the readings set in the design of measuring equipment and design expectations is given. The example of a high-rise building shows how to assign the «alarm» and «accident» criteria to ensure the operability of the monitoring system during operation.
Posterior-only versus combined anterior-posterior fusion in Scheuermann disease: a systematic review and meta-analysis
Authors: Lee Chang-Hyun , Won Young II , San Ko Young , Yang Seung Heon , Kim Chi Heon , Park Sung Bae , Chung Chun Kee
Published: December 2020

OBJECTIVE

Combined anterior-posterior (AP) surgery is considered the gold standard for surgical treatment of Scheuermann kyphosis. There are trends toward posterior-only (PO) surgery for correcting this deformity because of the availability of multisegmental compression instruments and posterior shortening osteotomy. To date, surgical strategies for Scheuermann kyphosis remain controversial. The purpose of this study was to compare various surgical approaches for the treatment of Scheuermann kyphosis, including radiological correction and intraoperative outcomes, using a systematic review and meta-analysis.

METHODS

A comprehensive database search of PubMed, EMBASE, Web of Science, and Cochrane Library was performed to identify studies concerning Scheuermann kyphosis. The inclusion criteria were direct comparisons between AP and PO surgeries for Scheuermann kyphosis and assessment of the angle of thoracic kyphosis preoperatively and postoperatively. The authors used the principles of a cumulative meta-analysis by updating the pooled estimate of the treatment effect.

RESULTS

Data from 13 studies involving 1147 participants (542 patients in the AP group and 605 patients in the PO group) were included. The average age was 18.2 years for the AP and 17.9 years for the PO group. The overall mean difference of changes in thoracic kyphosis angles between the AP and PO surgeries was 0.23° (95% CI −2.24° to 2.71°). In studies in which posterior shortening osteotomies were not performed, PO surgery resulted in a significantly low degree of correction of thoracic kyphosis, with a mean difference of 5.59° (95% CI 0.34°–10.83°). Studies in which osteotomies were performed revealed that the angle of correction for PO surgery was comparable to that of AP surgery. Regardless of fixation methods, PO surgical approaches achieved comparable angles.

CONCLUSIONS

PO surgery using posterior osteotomies can achieve correction of Scheuermann kyphosis as successfully as AP surgery does. Reflecting the advancement of surgical technology, large prospective studies are necessary to identify the proper treatments for Scheuermann kyphosis.
ГЕНОМНЫЙ АНАЛИЗ СТАРОМЕСТНЫХ СОРТОВ НУТА
Authors:   Санкт-Петербургский политехнический университет Петра Великого, Соколкова А.Б. , Булынцев С.В. ,   Кубанская опытная станция Федерального исследовательского центра «Всероссийского института генетических ресурсов растений им. Н.И. Вавилова», Чанг П.Л. ,   Калифорнийский университет, Карраскила-Гарсиа Н. ,   Калифорнийский университет, Кук Д.Р. ,   Калифорнийский университет, Веттберг Э. ,   Университет Вермонта, Вишнякова М.А. ,   Федеральный исследовательский центр «Всероссийский институт генетических ресурсов растений им. Н.И. Вавилова», Нуждин С.В. ,   Санкт-Петербургский политехнический университет Петра Великого,   Университет Южной Калифорнии, Самсонова М.Г. ,   Санкт-Петербургский политехнический университет Петра Великого
Published: December 2020

Коллекция банка семян Всероссийского института генетических ресурсов растений имени Н.И. Вавилова (ВИР) содержит староместные сорта, собранные в основных исторических центрах выращивания нута и его вторичной диверсификации. В статье приведен анализ результатов фенотипирования 407 староместных сортов нута на полях Кубанской опытной станции ВИР в 2017 г. Проведенный GWAS-анализ выявил три однонуклеотидных полиморфизма на хромосомах 2, 7 и 8, значимо ассоциированных с фенотипическим признаком «число дней цветения». Эти однонуклеотидные полиморфизмы и районы генома рядом с ними были идентифицированы в предыдущих исследованиях. При оценке взаимодействия «генотип-среда» были выявлены «лучшие» в средах генотипы для фенотипических признаков, связанных с семенами растений. Найденные генотипы имеют альтернативную гомозиготу в позиции Ca7:30930779, которая значимо ассоциирована с данными фенотипическими признаками при фенотипировании на Кубанской опытной станции ВИР в 2016 г. и с периодом цветения при фенотипировании в 2017 г. Полученные результаты могут ускорить поиск образцов коллекции наиболее перспективных для возделывания сортов нута.
ТЕМПЕРАТУРНАЯ УСТОЙЧИВОСТЬ ЭЛЕКТРОННОГО ТРАНСПОРТА В МЕМБРАННЫХ ПРЕПАРАТАХ ФОТОСИСТЕМЫ II БЕЗ КАЛЬЦИЯ В КИСЛОРОДВЫДЕЛЯЮЩЕМ КОМПЛЕКСЕ
Authors:   Московский государственный университет имени М.В. Ломоносова, Ловягина Е.Р. , Сёмин Б.К. ,   Московский государственный университет имени М.В. Ломоносова
Published: December 2020

Исследована температурная устойчивость электронного транспорта к искусственному акцептору электронов 2,6-дихлорофенолиндофенолу в препаратах нативной фотосистемы II и фотосистемы II без катиона кальция в кислородвыделяющем комплексе. Температурная стабильность процессов выделения кислорода и переноса электрона от кислородвыделяющего комплекса к 2,6-дихлорофенолиндофенолу в фотосистеме II значительно отличаются - восстановление 2,6-дихлорофенолиндофенола более устойчиво к действию температуры, чем выделение кислорода. Реакция восстановления 2,6-дихлорофенолиндофенола в препаратах фотосистемы II без кальция менее устойчива к нагреванию, чем в препаратах нативной фотосистемы II. Температурная инактивация мембранных препаратов фотосистемы II без кальция ингибируется цитохромом с при концентрации 50 молекул цитохрома с на реакционный центр фотосистемы II. Активность препарата (скорость восстановления 2,6-дихлорофенолиндофенола) при этом максимально возрастает на 19%, приближаясь к активности нативной фотосистемы II...
ЛИГАНД СИГМА-1 РЕЦЕПТОРОВ ХЛОРПРОМАЗИН ПОДАВЛЯЕТ ДЕПОЗАВИСИМЫЙ ВХОД СА2+ В ПЕРИТОНЕАЛЬНЫХ МАКРОФАГАХ
Authors:   Санкт-Петербургский государственный университет, Миленина Л.С. , Крутецкая З.И. ,   Санкт-Петербургский государственный университет, Антонов В.Г. ,   Военно-медицинская академия им. C.М. Кирова, Крутецкая Н.И. ,   Санкт-Петербургский государственный университет
Published: December 2020

С использованием флуоресцентного Са2+-зонда Fura-2AM впервые показано, что антагонист рецепторов сигма-1 - нейролептик хлорпромазин - значительно подавляет в перитонеальных макрофагах крыс депозависимый вход Са2+, индуцируемый иммуномодуляторами глутоксимом и моликсаном, а также ингибиторами эндоплазматических Са2+-АТФаз тапсигаргином и циклопьязониковой кислотой. Полученные результаты свидетельствуют об участии рецепторов сигма-1 в регуляции депозависимого входа Са2+ в макрофагах.
МАТЕМАТИЧЕСКАЯ МОДЕЛЬ СТЕНКИ РЕЗИСТИВНОГО МОЗГОВОГО СОСУДА КРЫСЫ
Authors:   Институт физиологии им. И.П. Павлова РАН, Шадрина Н.Х.
Published: December 2020

Представлена математическая модель механических свойств стенки мелкой мозговой артерии крысы. Предполагается, что активная составляющая напряжения имеет окружное направление и является функцией концентрации активатора сокращений гладкомышечных клеток и окружного и радиального растяжений, продольные растяжения не рассматриваются. Расчеты показали существенное снижение как окружного напряжения, так и окружного растяжения в сосудистой стенке после активации, распределение этих величин в трансмуральном направлении становится более однородным. Активная составляющая оказывает преобладающее влияние на формирование общего напряжения. Окружная компонента напряжения в несколько раз превышает радиальную и продольную. Модуль отношения радиальной компоненты напряжения к окружной в результате активации увеличивается, прослеживается тенденция к уменьшению его величины с ростом окружного растяжения. Численный анализ выявил высокую чувствительность и радиуса, и напряжения даже к небольшому изменению значений параметров, входящих в функциональную зависимость напряжения от концентрации активатора сокращений гладких мышц.
ОСОБЕННОСТИ НЕЛИНЕЙНОЙ ДИНАМИКИ ПОКАЗАТЕЛЕЙ МИКРОЦИРКУЛЯЦИИ ВЕРХНИХ КОНЕЧНОСТЕЙ ЧЕЛОВЕКА В УСЛОВИЯХ ВОЗМУЩАЮЩИХ ВОЗДЕЙСТВИЙ
Authors:   Научно-исследовательский институт нормальной физиологии им. П.К. Анохина, Мезенцева Л.В.
Published: December 2020

Изучена нелинейная динамика флуктуаций микрокровотока симметричных областей верхних конечностей человека в исходном и возмущенном состоянии. Возмущением являлись физические нагрузки, которые представляли собой махи левой или правой рукой в положении стоя в течение 1 мин. Измерения показателей микроциркуляции были проведены у пяти здоровых добровольцев методом лазерной допплеровской флоуметрии. Флоуметрические датчики фиксировали на наружной поверхности симметричных областей нижних частей правого и левого плеча в точках, расположенных на 3 см выше локтевого сгиба. Оценивали: показатель Херста, размерность Хаусдорфа, геометрические характеристики фазовых портретов, а также статистические показатели перфузии. Было показано, что возмущающие воздействия приводят к изменениям параметров нелинейной динамики микроциркуляции верхних конечностей, которые характеризуются повышением уровня персистентности той стороны, на которой совершались возмущающие воздействия, повышением фрактальной размерности хаоса при левых возмущениях, а также инверсной динамикой лево-правосторонней асимметрии аттракторов.
ГАЗООБРАЗНЫЙ ОКСИД АЗОТА И ДИНИТРОЗИЛЬНЫЕ КОМПЛЕКСЫ ЖЕЛЕЗА С ТИОЛСОДЕРЖАЩИМИ ЛИГАНДАМИ КАК ПРЕДПОЛАГАЕМЫЕ ЛЕКАРСТВЕННЫЕ СРЕДСТВА, СПОСОБНЫЕ КУПИРОВАТЬ СOVID-19
Authors:   Федеральный исследовательский центр химической физики им. Н.Н. Семёнова РАН, Ванин А.Ф. ,   Институт регенеративной медицины Первого Московского государственного медицинского университета имени И.М. Сеченова МЗ РФ, Пекшев А.В. ,   «Московский государственный технический университет имени Н.Э. Баумана» (национальный исследовательский университет)», Вагапов А.Б. ,   «Московский государственный технический университет имени Н.Э. Баумана» (национальный исследовательский университет)», Шарапов Н.А. ,   «Московский государственный технический университет имени Н.Э. Баумана» (национальный исследовательский университет)», Лакомкин В.Л. ,   Национальный медицинский исследовательский центр кардиологии МЗ РФ, Абрамов А.А. ,   Национальный медицинский исследовательский центр кардиологии МЗ РФ, Тимошин А.А. ,   Национальный медицинский исследовательский центр кардиологии МЗ РФ, Капелько В.И. ,   Национальный медицинский исследовательский центр кардиологии МЗ РФ
Published: December 2020

Показано, что ингаляционное введение животным и человеку газообразного NO или распыленных водных растворов биядерных динитрозильных комплексов железа с глутатионом или N-ацетил-L-цистеином не оказывает на них заметного гипотензивного действия, что делает возможным их предполагаемое использование при лечении СOVID-19. Установлено, что по мере повышения концентрации NO в газовом потоке, создаваемым аппаратом «ПЛАЗОН», с 100 до 2100 ррm уровень NO, включавшегося в комплексы с гемоглобином в крови, начинал снижаться, так что при 2000 ppm более половины этого газа включалось в динитрозильные комплексы, возникавшие в ткани легких и дыхательных путей. Таким образом ингаляционное введение газообразного NO может приводить к тому же, что и аналогичное введение растворов динитрозильных комплексов железа - к появлению в тканях легких и дыхательных цепей динитрозильных комплексов железа с тиолсодержащими лигандами. Поскольку эти комплексы как доноры катионов нитрозония могут (как это было предположено ранее - Биофизика, т...
Do different types of organizational trust matter to employees’ commitment? A case study from Oman
Authors: Gharib Moaz , Allil Kamaal , Durrah Omar , Alsatouf Mohammed
Published: December 2020

PURPOSE: Trust is vital to all positive relationships. This empirical study explores the effect of three facets of organisational trust (trust in supervisors, in co-workers and in the organisation) on employee commitment in Salalah Mills Co. in the food industry in the Sultanate of Oman. METHODOLOGY: Data were collected via an online survey sent to all employees working in Salalah Mills Co., Oman. The final sample consisting of 102 responses with a response rate of 54 percent were analysed using multiple regression analysis. RESULTS: The findings revealed that two facets of organisational trust (trust in co-workers and trust in supervisors) were found to have a significant positive effect on employee commitment, while trust in the organisation was found to have no significant effect. PRACTICAL IMPLICATIONS: Trust in supervisors and trust in co-workers directly affect employee commitment. Therefore, managers should consider promoting both of these forms of trust to enhance employee commitment. VALUE: Although previous studies have examined the link between organisational trust and employee commitment, a focus on Oman and the food sector has been particularly rare, so this study offers new insights. The findings will help decision-makers on design strategies and policies to improve employee commitment through trust.
Ameliorating Ribosylation-Induced Amyloid-β Pathology by Berberine via Inhibiting mTOR/p70S6K Signaling
Authors: Wang Yang-Yang , Yan Qian , Huang Zhen-Ting , Zou Qian , Li Jing , Yuan Ming-Hao , Wu Liang-Qi , Cai Zhi-You
Published: December 2020

Background: Berberine (BBR) plays a neuroprotective role in the pathogenesis of Alzheimer’s disease (AD), inhibiting amyloid-β (Aβ) production and promoting Aβ clearance. Advanced glycation end products (AGEs) promote Aβ aggregation and tau hyperphosphorylation. The activation of mTOR signaling occurring at the early stage of AD has a prominent impact on the Aβ production. This work focused on whether BBR regulates the production and clearance of ribosylation-induced Aβ pathology via inhibiting mTOR signaling. Objective: To explore whether BBR ameliorates ribosylation-induced Aβ pathology in APP/PS1 mice. Methods: Western blot and immunofluorescence staining were used to detect the related proteins of the mammalian target of Rapamycin (mTOR) signaling pathway and autophagy, as well as the related kinases of Aβ generation and clearance. Tissue sections and Immunofluorescence staining were used to observe Aβ42 in APP/PS1 mice hippocampal. Morris water maze test was used to measure the spatial learning and memory of APP/PS1 mice. Results: BBR improves spatial learning and memory of APP/PS1 mice. BBR limits the activation of mTOR/p70S6K signaling pathway and enhances autophagy process. BBR reduces the activity of BACE1 and γ-secretase induced by D-ribose, and enhances Aβ-degrading enzymes and Neprilysin, and inhibits the expression of Aβ in APP/PS1 mice. Conclusion: BBR ameliorates ribosylation-induced Aβ pathology via inhibiting mTOR/p70S6K signaling and improves spatial learning and memory of the APP/PS1 mice.
Effects of coupling inhibitory and facilitatory repetitive transcranial magnetic stimulation on motor recovery in patients following acute cerebral infarction
Authors: Chen Qingmei , Shen Dan , Sun Haiwei , Ke Jun , Wang Hongxia , Pan Shenjie , Liu Haoyu , Wang Dapeng , Su Min , Fang Qi
Published: December 2020

BACKGROUND: The treatment for patients suffering from motor dysfunction following stroke using continuous repetitive transcranial magnetic stimulation (rTMS) has the potential to be beneficial for recovery. However, the impact of explicit results on the coupling of various rTMS protocols on motor treatment in patients following acute cerebral infarction remain unexplored. OBJECTIVE: The current study aims to design a sham-controlled randomized report to explore the capability of consecutive suppressive-facilitatory rTMS method to increase the motor results following acute stroke. METHODS: A hundred ischemic stroke patients suffering from motor disorder were randomly assigned to obtain 4 week sessions of (1)10 Hz over the ipsilesional primary motor cortex (M1) and next 1 Hz over the contralesional M1; (2) contralesional sham stimulation and next ipsilesional real 10 Hz; (3) contralesional real 1 Hz rTMS and next ipsilesional sham stimulation; or (4) bilateral sham-control procedures. At 24 hours before and after the intervention, we obtained cortical excitability data from study subjects. At baseline, after treatment and 3 months follow up, we additionally evaluated patients with the clinical assessments. RESULTS: At post-intervention, group A showed greater motor improvements in FMA, FMA-UL, NIHSS, ADL and mRS values than group B, group C and group D, that were continued for at least 3 months after the completion of the treatment time. Specifically, it is shown in the cortical excitability study that the motor-evoked potential (MEP) amplitude and resting motor threshold (rMT) more significantly improved in group A than other groups. The improvement in motor function and change in motor cortex excitability exhibit a significant correlation in the affected hemisphere. The combined 1 Hz and 10 Hz stimulation treatment showed a synergistic effect. CONCLUSIONS: Facilitatory rTMS and coupling inhibitory produced extra satisfactory results in facilitating the motor’s recovery in the subacute and acute phase following stroke compared to that acquired from alone single-course modulation.
Tricks To Master English Vocabulary Through Interactive Activities At The Puri Kasih Orphanage Tembilahan
Authors: Amri Samsul , Syafrizal Syafrizal , Maizarah Maizarah
Published: December 2020

English language skills are also often used as a requirement when they want to continue to a higher education level. However, it cannot be denied that the limited understanding of English vocabulary results in obstruction of language competence achievement. Therefore, this activity is a form of service to the community, especially as a form of implementation of the Tri Dharma obligations of higher education, which aims to help students at the Puri Kasih Tembilahan Orphanage to master English vocabulary quickly. The method used is Training of easy tricks to master English vocabulary through interactive activities. In this Community Service activity, several activities are carried out, namely: words puzzle, words matching, pictures, games, and watching short movies. The results of this Community Service activity showed that the participants gave a positive responses to this activity. They are also more courageous and motivated to use the vocabulary they have by participating in every activity they do. Furthermore, the initial test results showed 8.3% of participants in the Very Good category, 12.5% of participants in the Good category, 41.7% of participants in the Enough category, and 37.5% of participants in the Low category. Then, the final test results showed that 16.7% of participants were at the Very Good level, 25% of participants were at the Good level, 45.9% of participants were at the Enough level, and only 12.5% were at the Low level. This shows that interactive activities can help students at the Puri Kasih Tembilahan Orphanage more easily master English vocabulary.
Nâbî’nin Hayriyye’sinde İslam’ın Şartları
Authors: Söylemez İdris
Published: December 2020

Yusuf Nabi from Urfa is one of the important poets of 17th century Classical Turkish Literature. He is the pioneer of the hikemi style which is a leading literary school of 17th century and examples of which is seen from an earlier period in the field of Iranian literature. Within tent to leave a legacy to his son Abu'l-Hayr, the Poet wrote one of his important work "Hayri-name" or "Hayriyye" with his common name. The work of his was written in the style of pend-name, a style belonging to Ottoman field Classical Turkish Literature. However, his work was far from being understood in terms of content, style and language by Abu'l-Hayr who was only eight years old at the time. Due to being of a certain age, the Poet feared that he would be unable to guide his son in related matters, so he wanted to leave written advice for him as inheritance. Written to provide guidance and teach manners, the work contains some topics related to political, social, economic and cultural areas. The work, which Nabi formed according to mesnevi verse style, contained right at the beginning of it a detailed explanation in the issue of the Conditions of Islam. The Conditions of Islam are essential for each member in a Muslim society to learn and counted as the basis of Islamic religion. In this article, we aim to reveal the views of Nabi, who mentions in his work about the training of young Muslim men about the conditions of Islam.
售楼处建筑智能化系统设计研究
Authors: 林 春艳
Published: December 2020

基于智慧校园、智慧社区、智慧展馆等智慧化理念的不断深入，售楼处在营销展示方面融入了智慧理念，建筑智能化理念放在核心位置上，积极推动售楼处智能化建设，为大众提供更加智能化的展示服务，基于此，笔者重点探究了售楼处建筑智能化系统设计理念，确保在建筑智能化理念下，积极推进售楼处智能化设备的引进，加快建筑智能化设计步伐。
建筑暖通空调工程节能设计
Authors: 贾 世明
Published: December 2020

近年来，在多方面利好因素的影响下，使得我国综合国力得到了全面的提升，为各个领域的发展创造了良好的基础，并且也使得民众的思想意识发生了巨大的变化。在建筑工程中，暖通工程可以说是其中较为重要的一个分支工程，其整体水平与民众生活存在密切的关联。随着人们环保意识的不断提升，建筑暖通空调工程节能设计必将成为建筑工程行业的未来发展主流趋势，并且其在环境保护、节能降耗方面也能够起到重要的影响。鉴于此，这篇文章主要围绕建筑暖通空调工程节能设计工作展开全面深入研究分析，希望能够对我国建筑工程行业的健康稳定发展有所帮助，为保证我国社会和谐稳定起到积极的影响作用。
浅谈采矿工程中绿色开采技术的相关应用
Authors: 马 云飞
Published: December 2020

尽管我国目前的能源使用的结构发生了比较明显的变化，但作为世界上最大的煤炭生产和使用的国家，煤炭仍是我国经济社会的发展过程中的主要能源之一，而且我国煤炭资源的储备很大，完全不需要依赖进口，真正的实现了自给自足，因此，煤炭开采的技术和开采的水平就对我国的经济社会发展来说显得尤为重要。就煤炭地下开采作业而言，以超深钻探开采的技术应用为主，尤其是在煤层深度不断加深的开采的新形势和新情况下，在地表上的煤储量越来越少的现实中，深层的煤资源要想实现良好的开采，就必须要深入的开展煤矿地质超深孔钻探技术的研究和创新，不断的提高超深孔钻探质量和技术应用的水平，有效的推动我国煤炭资源合理利用和有效利用，确保煤炭资源的高效率使用。
岩土工程勘察设计与施工中水文地质问题
Authors: 江 树铭
Published: December 2020

在社会快速发展的带动下，使得我国综合国力得以不断的提升，这样就为各个行业的发展壮大带来了良好的机遇，尤其是建筑工程行业的发展十分的迅猛。在这种形势下，有效的推动了我国岩土工程的不断进步，从而导致我国各个地区大规模工程项目应时而生，再加上我国全面推行可持续发展的理念，使得人们对岩土工程施工过程中水文地质问题越发的重视。就以往岩土工程施工工作来说，因为前期勘察和设计工作缺少对施工水文地质等诸多问题的综合研究分析，所以在施工过程中往往会发生环境污染、水土流失或者是岩土结构变形等不良水文地质问题，这样对于后期工程施工工作的实施会造成诸多的限制和阻碍，无法从根本上对建筑工程施工质量和施工效率加以保证。要想从根本上对岩土工程施工质量和安全加以根本保障，并且避免发生破坏生态平衡的问题，那么就需要针对岩土工程实施勘察设计工作的时候，针对地下水文地质问题进行综合勘察和分析，制定完善的工程施工方案，确保各项工作得以有序的开展。
全过程工程造价控制初探
Authors: 朱 骏
Published: December 2020

众所周知，在一项工程的建造过程中，对工程进行合理的造价计量是十分重要的，它不仅在工程开始之前进行计量，在工程进行时以及整个项目完成之后都需要进行工程造价管理，而在这些过程中，所涉及到的方面较为复杂，涵盖的种类众多，一般的机械化操作很容易出现误差，且效率较低，而在大数据的应用下，可以很好地解决这一问题，依托于大数据本身的特点，可以从多个方面综合的对工程进行造价管理。
井筒装备快速安装新工艺施工技术
Authors: 徐 慧锦
Published: December 2020

立井井筒装备的安装，是立井施工中一项非常细致的工作，安装质量的好坏直接影响着井筒装备使用的可靠性。在立井井筒剖面上，布置有梯子间、罐道、管路、电缆、托架、钢梁、锚杆等多个构件，结合建元煤矿新主井井筒装备安装工程实际现状，传统安装工艺已不能满足施工时间短、效率高、成本低的实际需求，重点解决罐道、小型电缆何时安装的问题，因此，必须制定了井筒装备快速安装新工艺，才能保证井筒装备的施工质量和施工进度。
岩土工程极限分析有限元法及其应用
Authors: 钟 涵
Published: December 2020

近年来，在多方面利好因素的影响下，使得我国社会综合国力得到了显著的提升，从而也为各个领域的发展壮大创造了良好的机遇，推动了科学技术的发展，大量的新型科学技术被人们研发出来，并在实践运用中取得了良好的成绩。其中有限元法是当前最先进的一种实践方法，将有限元法与电子计算机技术融合在一起，能够高效的解决各类问题。鉴于此，这篇文章主要围绕岩土工程极限分析有限元法的实践运用展开全面深入的研究分析，希望能够对我国岩土工程行业的未来良好发展有所帮助。
地铁盾构隧道掘进中的同步注浆施工技术探讨
Authors: 陈 雪鹏
Published: December 2020

近年来，在多方面利好因素的影响下，使得我国社会综合国力得到了显著的提升，从而为各个领域的发展壮大带来了诸多的机遇，推动了城市化建设工作的全面实施。在城市交通工程项目中，盾构法是最为常见的一种施工工艺，其所具有的优越性就是可以有效的提升交通工程施工工作的效率，尽可能的避免对周边交通工程造成不良影响。结合盾构施工方法实际运用情况来说，对于岩土结构的稳定性造成损害的因素有：刀盘切削及盾构机振动等，并且管片以及岩土结构中线存在缝隙的情况，也会导致地表结构发生沉降的情况，必然会对周边建筑结构造成不良影响，解决上述问题，最为有效的方法就是合理的运用同步注浆施工技术。鉴于此，这篇文章主要围绕地铁盾构隧道掘进中的同步注浆施工技术展开全面深入的研究分析，希望能够对我国地铁工程项目施工工作的有序开展创造良好的基础。
建筑混凝土裂缝主要因素及施工处理
Authors: 何 家宁
Published: December 2020

混凝土裂缝其实质是因为整个结构受到内外两个因素的影响而引发的结构物理变化所产生的，如果混凝土结构出现裂缝的问题，那么外界的液体往往会顺着裂缝渗入到混凝土内层，从而会对钢筋材料造成一定的锈蚀，最终导致保护层的脱落，这样就会损害到建筑工程结构的整体质量。在建筑工程整体结构整体规模不断扩大的形势下，建筑结构层数不断增加，混凝土结构裂缝越发的受到了人们的关注。
土木工程施工中混凝土结构的施工要点分析
Authors: 张 淼
Published: December 2020

随着我国社会和经济的高速发展，使得在市场环境当中，竞争越发的激烈起来，在土木工程行业的发展过程中，这一行业是建筑领域当中十分重要的组成部分，保障混凝土结构的施工建设质量是确保建筑的整体质量性和功能性的必要条件，为此文章主要就土木工程施工过程中，混凝土机构施工的各方面要点进行分析。
FREQUENCY OF DAYTIME SLEEPINESS OF FACTORY WORKERS WORKING IN SHIFTS AND ITS EFFECT ON ANXIETY
Authors: KANTAR Sanidin , SOHBET Rabia , KARASU Fatma , BİRİMOGLU OKUYAN Canan
Published: December 2020

Objective: This descriptive and cross-sectional study was conducted to examine the frequency of daytime sleepiness and its effects on anxiety in factory workers working in shifts.
Methods: The population of the research consisted of 1052 workers working in two factories. The data were collected using the data collection form, Epworth Sleepiness Scale, and Beck Anxiety Inventory. Normally distributed data were presented as number, percentage, mean, and standard deviation. Independent samples t test and ANOVA were used in statistical analysis.
Results: The mean Epworth Sleepiness Scale score of shift workers was 10.4 ± 4.2 and 42.8% had excessive daytime sleepiness. When the Epworth Sleepiness Scale scores and Beck Anxiety Inventory scores of the workers participating in the research were compared, it was determined that the daytime sleepiness levels of shift workers increased as anxiety risk increased, and the effect on vital characteristics was statistically significant (P < 0.05).
Conclusion: Therefore, interventions, effective coping methods, and training strategies should be developed in order to improve the sleep quality, especially daytime sleep quality, and vital characteristics of shift workers.
Simulation Analysis and Experimental Verification of the Locking Torque of the Microgravity Platform of the Chinese Space Station
Authors: Liu Guangming , Luo Haitao , Yu Changshuai , Wang Haochen , Meng Lilu
Published: December 2020

The Microgravity Platform (MP) of the Chinese Space Station is locked and released by Lock-or-Release (L/R) mechanism on both sides. In order to ensure the safety and reliability of the MP under the vibration environment during the rocket launch, the L/R mechanism must output the appropriate locking torque value. Based on the structural characteristics of the Scientific Experiment Cabinet (SEC), this paper proposes a method of evaluating locking torque by combining theory with experiment, and the relationship between locking force and locking torque of L/R mechanism is proved that the locking force on both sides can reach 2000 N at 25 Nm driving torque. Finally, it is verified by vibration test that the locking torque obtained by this method can effectively guarantee the safety and reliability of the MP under vibration environment.
A Closed-Form Method for Simultaneous Target Localization and UAV Trajectory Optimization
Authors: Wang Dongzhen , Huang Daqing , Xu Cheng , Han Wei
Published: December 2020

Unmanned aerial vehicles (UAVs) play a key role in modern surveillance-related missions. A major task for performing these missions is to find the precise location of a moving target in real-time, for which the main challenge is to estimate the target position to high precision using the noisy measurements from the airborne sensors. In this paper, we present a closed-form on-line simultaneous target localization and UAV trajectory optimization method based on the visual platform, which can effectively minimize the localization uncertainty to the target. The proposed method can be elucidated explicitly using two phases, of which, in the target localization phase, the expended information filtering (EIF) is exploited, which can express the predicted Fisher information matrix (FIM) of the target explicitly and iteratively, and in the UAV trajectory optimization phase, the property of the predicted FIM is exploited to establish the UAV waypoint optimization objective by taking account of the UAV motion limit. Compared with existing methods of the same class, the proposed method not only estimates the next target position more correctly, but also takes the error of the target motion into consideration, thus improving the effectiveness of the optimized UAV trajectory. Both simulations and field experiments were conducted, which show that the proposed method outperformed the existing methods.
Effect of Nitrogen on the Growth of (100)-, (110)-, and (111)-Oriented Diamond Films
Authors: Tung Jen-Chuan , Li Tsung-Che , Teseng Yen-Jui , Liu Po-Liang
Published: December 2020

The aim of this research is the study of hydrogen abstraction reactions and methyl adsorption reactions on the surfaces of (100), (110), and (111) oriented nitrogen-doped diamond through first-principles density-functional calculations. The three steps of the growth mechanism for diamond thin films are hydrogen abstraction from the diamond surface, methyl adsorption on the diamond surface, and hydrogen abstraction from the methylated diamond surface. The activation energies for hydrogen abstraction from the surface of nitrogen-undoped and nitrogen-doped diamond (111) films were −0.64 and −2.95 eV, respectively. The results revealed that nitrogen substitution was beneficial for hydrogen abstraction and the subsequent adsorption of methyl molecules on the diamond (111) surface. The adsorption energy for methyl molecules on the diamond surface was generated during the growth of (100)-, (110)-, and (111)-oriented diamond films. Compared with nitrogen-doped diamond (100) films, adsorption energies for methyl molecule adsorption were by 0.14 and 0.69 eV higher for diamond (111) and (110) films, respectively. Moreover, compared with methylated diamond (100), the activation energies for hydrogen abstraction were by 0.36 and 1.25 eV higher from the surfaces of diamond (111) and (110), respectively. Growth mechanism simulations confirmed that nitrogen-doped diamond (100) films were preferred, which was in agreement with the experimental and theoretical observations of diamond film growth.
A Fast, Decentralized, Self-Aligned Carrier Method for Multicellular Converters
Authors: Phan Quoc Dung , Gateau Guillaume , Nguyen Phu Cong , Cousineau Marc , To Huu Phuc , Nguyen Bao Anh , Veit Lucas , De Milly Romain , Hillesheim M.Mannes
Published: December 2020

This paper proposes a fast, decentralized method for self-aligning the carriers of a multiphase/multilevel converter operating on the basis of phase-shifted pulse width modulation or level-shifted pulse width modulation. In the proposed method, each cell of the converter synchronizes and updates simultaneously its own carrier angle or carrier level based on the information shared with its neighboring cell, such as its angle/level, its index number, and the total number of activated cells of the converter. Different from the conventional decentralized method (with basic and modified updating rules), which requires some conditions in terms of cell number and initial carrier angles to start up and operate properly, the proposed method can be applied to the system with any number of cells and does not require special conditions of initial carrier angles. Further, while the conventional method needs an iteration process to adjust the inter-carrier phase-shifts and can be applied only to a multiphase converter which uses phase-shifted pulse width modulation, the proposed method offers an accurate and fast alignment of phases (for phase-shifted pulse width modulation) or levels (for level-shifted pulse width modulation) and thus can be applied to both multiphase and multilevel converter types. The simulations and the experimental results are presented in detail to show the validity and the effectiveness of the proposed methods. Further, thorough simulations on multiphase converters with different number of cells also show that the proposed method is much faster than the conventional method in both configuration and reconfiguration processes, especially in case the system has a large number of cells.
Acute Neuromuscular Responses to Whole-Body Vibration of Systemic Lupus Erythematosus Individuals: A Randomized Pilot Study
Authors: Dionello Carla F. , Souza Patrícia L. , Rosa Pedro V. , Santana Andreza , Marchon Renata , Morel Danielle S. , Moreira-Marconi Eloá , Frederico Eric F. F. , Sá-Caputo Danúbia C. , Coelho-Oliveira Ana Carolina , Crivelli Marise , Mendes Klumb Evandro , Taiar Redha , Marín Pedro J. , Bernardo-Filho Mario
Published: December 2020

Background: Glucocorticoid induced osteoporosis (GIOP) is one of the most important causes of morbidity in lupus individuals. Whole body vibration exercises (WBVE) may be a safe alternative to prevent and amend muscular and bone damage, and decrease muscle related risk factors for falls. It is possible to evaluate neuromuscular responses to the WBVE through surface electromyography (sEMG). Objective: To analyze and compare the acute responses of the WBVE on sEMG of lower limbs of female systemic lupus erythematosus (SLE) individuals with chronic glucocorticoid use with and without bone impairments and non-lupus controls. Methods: All patients (non-lupus and with SLE) had a dual-energy X-ray absorptiometry (DXA) scan (body composition, bone composition right hip, lumbar segment and whole body). After DXA, they were divided into three groups: SLE with osteopenia (OPIA) (SLE OPIA), SLE without OP or OPIA (SLE) and non-lupus individuals as control (CG). Twenty-seven women were submitted to WBVE, on different frequencies with the same amplitude. The experiment was performed over two days, 48 h apart. The individuals stood at a half squat position on a vertical vibrating platform at different frequencies with the same amplitude on both days. Vastus lateralis (VL), gastrocnemius medialis (GM) and tibialis anterioris (TA) sEMG analyses were undertaken simultaneously while performing the exercises, in a randomized manner. Results: There were no differences between sarcopenia index among groups, despite the bone impairment of the SLE OPIA group. The greatest muscle activation occurred in the lower frequency applied for VL. A group x frequency difference was found only for GM (p = 0.034; η2 = 0.272). Conclusion: The results indicate that lupus individuals have similar neuromuscular activity to the WBVE as non-lupus controls. Moreover, this suggests that WBVE is a safe and viable physical exercise for lupus individuals with chronic glucocorticoid induced osteoporosis.