bluuebunny/crossref_metadata_2025 huggingface dataset:
Обоснование экономических показателей производства стабилизатора среднемагистрального самолета
Authors: Антоневич В.А. , Антоневич Г.Б. , Гирина А.Н.
Published: February 2024

Освоение российскими компаниями функций интеграторов систем не должно приводить к монополизации рынка; участие в создании и освоении новых технологий малых инновационных и инжиниринговых компаний может обеспечить необходимый уровень конкуренции, ускорить процессы вывода перспективных продуктов на рынок, повысить конкурентоспособность конечной продукции. Следует учитывать особенности Российской Федерации, связанные с законодательством и практикой бюджетного планирования и финансирования; концентрацией основных разработчиков и производителей авиационной техники, изделий, в крупных, преимущественно государственных компаниях. При изготовлении изделия необходимо учитывать специфику регулирования авиационной деятельности предприятия, выполнять расчеты экономических показателей производства. Немаловажным фактором является способность отрасли гибко реагировать на изменения внешнеэкономической конъюнктуры. В последние 40 лет выпускаются современные модификации самолетов с более экономичными двигателями Airbus 320. В первую очередь это означает повышение экономичности. Рассмотрим типовой расчет экономической нагрузки, проводимый при проектировании стабилизатора Airbus 320. Расчет предполагает нахождение наиболее рационального в конкретных условиях решения многокритериальной задачи путем анализа возможных вариантов и детальной проработки самого предпочтительного из них. Результатом является стоимость одной единицы изделия стабилизатора среднемагистрального воздушного судна и составляет шестьсот пятьдесят четыре тысячи триста девяносто два рубля, которая определяет прибыль и рентабельность производства на данный момент расчета.
Система вентиляции с использованием искусственного интеллекта
Authors: Горбов В.Ю. , Борисова О.В.
Published: February 2024

В статье рассмотрена система вентиляции с использованием искусственного интеллекта и еѐ основные алгоритм. Рассмотрены преимущества использования искусственного интеллекта в данной системе. Актуальность работы заключается в широкой заинтересованностью общественность в новой технологии и оптимизации работы системы жизнедеятельности.
Additive technologies application for repairing and restoring elements of submarine pipelines
Authors: Shcherbakov V.S. , Kulichkov S.V. , Minakova P.S.
Published: February 2024

The introduction of additive technologies in the oil and gas industry has just begun and is at the initial stage of the possible introduction and expansion of additive manufacturing in the oil and gas industry. The article provides a brief introduction to additive manufacturing in the repair of an underwater pipeline in an oil and gas area, and summarizes the state of development and scope of additive manufacturing technologies on the example of foreign companies. This article provides an overview of robotic use for underwater pipeline repair.
Использование программного продукта «1С: Предприятие 8» в дорожно-строительной отрасли
Authors: Корниенко Д.В. , Панов П.Р. , Козлов Н.С.
Published: February 2024

В статье рассматривается вопрос актуальности использования программного продукта «1С: Предприятие 8» в дорожно-строительной отрасли. Демонстрируется автоматизация процессов получения, структурирования и анализа данных.
Разработка AR приложения на PYTHON для визуализации и управления стройплощадкой
Authors: Лыткин К.А.
Published: February 2024

Данная статья посвящена разработке приложения на языке программирования Python с использованием технологии дополненной реальности (AR) для визуализации и управления стройплощадкой. В статье рассматриваются основы AR и Python, проектирование функциональности приложения, шаги разработки, а также его применение на практике.
Понимание событий JavaScript: Всесторонний обзор
Authors: Мизаев М.М. , Сугаипов С-А.А. , Узденова Б.Х.
Published: February 2024

Данная статья обобщает различные аспекты работы с событиями в языке программирования JavaScript. От обзора основных типов событий до методов их обработки, включая фазы распространения, делегирование и асинхронные операции. Статья предоставляет информацию, необходимую для построения динамичных и отзывчивых веб-приложений, с акцентом на современные подходы к управлению кодом.
Области применения цифровых двойников
Authors: Обласов А.А.
Published: February 2024

Данная статья посвящена исследованию областей практического применения технологии цифровых двойников. Проведѐн анализ международного европейского опыта в сфере реализации технологии цифровых двойников в области городского управления, которые демонстрируют потенциал цифровых двойников как одной из самых передовых технологий в условиях цифровизации и урбанизации.
Сервисы для обработки видеосюжетов в туристической сфере
Authors: Панченко П.И. , Губарев М.И. , Белаш В.Ю.
Published: February 2024

В статье рассматривается визуальный вектор интересов современного потребителя туристских услуг, и маркетинговые методики, способствующие привлечению активных заинтересованных клиентов с помощью набирающих популярность видео-трендов, объясняющихся клиповым мышлением нового поколения пользователей социальных сетей. Также в статье приводятся примеры сервисов по обработке видео, функционал которых удовлетворяет представленным выше целям и позволяет создавать ролики на высоком уровне. В работе прослеживается параллель между финансированием IT-разработок ПО для работы с видеоматериалами и извлечением прибыли от дальнейшего продукта, произведѐнного посредством программ.
Оптимизация производительности веб-приложений
Authors: Сугаипов С-А.А. , Шахбазова М.С.
Published: February 2024

В этой статье рассматриваются стратегии оптимизации производительности вебприложений для улучшения пользовательского опыта. Она охватывает эффективную разработку интерфейса, адаптивный дизайн, CDN, рендеринг в браузере, оптимизацию на стороне сервера, мониторинг, PWA, тестирование, оптимизацию для мобильных устройств и постоянное совершенствование. Реализуя эти стратегии, разработчики могут создавать более быстрые и привлекательные веб-приложения.
Состояние инструментов рекламы на 2023 год
Authors: Сулейманов Д.М. , Гузуева Э. Р.
Published: February 2024

Научная статья представляет собой обзор на существующие и доступные в 2023 году каналы трафика клиентов на продающие сайты. Проведено ранжирование данных инструментов, разобраны плюсы и минусы, а также то, как санкции повлияли на возможности поиска клиентов.
МойОфис как альтернатива продуктам Microsoft: на примере работы с текстом
Authors: Черныш И.О. , Универсал Ю.С. , Белаш В.Ю.
Published: February 2024

В мире, где создание текстовых документов является неотъемлемой частью работы, учѐбы и повседневной жизни, наличие удобного и функционального текстового редактора становится важным. В повседневной жизни люди используют текстовые редакторы для написания писем, создания заметок, составления списков дел и многих других задач. Они также позволяют оформлять документы, добавлять изображения и таблицы, что делает их универсальным инструментом для организации информации. Многие профессионалы используют текстовые редакторы для программирования, написания кода и разработки вебсайтов. Актуальность текстовых редакторов в повседневной жизни, учѐбе и работе объясняется их универсальностью, доступностью и удобством использования. В данной статье был изучен и описан функционал текстового редактор МойОфис Текст – одного из самых популярных текстовых редакторов в России, входящего в пакет «МойОфис Стандартный». Также был выполнен функциональный и практический анализ данного редактора с целью сравнения его с текстовым редактором Microsoft Word.
Цифровой двойник местности: роль игрового движка в процессе создания, сферы применения двойников
Authors: Яровой Р.В. , Рябов Г.А. , Карганов В.В.
Published: February 2024

В статье рассмотрено создание цифровых двойников местности с использованием игровых движков, а также этапы разработки, инструменты и особенности создания детализированных цифровых моделей окружающей среды. Обсуждаются различные области применения, включая образование, планирование, военные симуляции и индустрию развлечений.
Роль математических методов в логистике
Authors: Абзалимова Р.Р.
Published: February 2024

В статье анализируется роль математики в логистике, объясняется необходимость математического влияния на экономику и еѐ связь с логистическими процессами. Затрагивается один из математических методов и раскрывается его сущность на примере транспортной задачи.
О редукции дифференциальных уравнений
Authors: Гарминович Н.А.
Published: February 2024

В статье рассматриваются вопросы редукции дифференциальных уравнений, приводятся образующие дискретной группы преобразований, позволяющие свести исследование класса уравнений к исследованию алгебраической зависимости между векторами существенных параметров, которое усложняется операцией обращения интеграла.
Ноль и единица как «недочисла». «Черный ящик»
Authors: Полякова И.С.
Published: February 2024

Все числа преобразуют другие числа с помощью математических операций, но есть числа, которые при математических операциях не преобразуют другие числа, например, ноль при сложении и вычитании, единица при умножении и делении. Поэтому это «нелочисла», «получисла». Ноль – это «получисло» первой степени, а единица – второй. С нолем отличаются все математические операции, с единицей большинство. Математические операции можно представить, как «черный ящик», чтобы визуализировать изменение чисел.
Матрицы. Линейные операции над ними и их свойства
Authors: Попова О.Д.
Published: February 2024

Матрицы – это основной инструмент в линейной алгебре, который находит широкое применение в различных областях, начиная от физики и инженерии до компьютерного моделирования и экономики. В данной статье мы рассмотрим основные операции над матрицами, такие как сложение, умножение и транспонирование, а также изучим их основные свойства.
Исследования деформирования оснований фундаментов при повышенных нагрузках
Authors: Соколов Н.С.
Published: February 2024

Безопасность эксплуатации объектов согласно ГОСТ 27751-2014 «Надежность строительных конструкций и оснований. Основные положения» регламентируются величинами вертикальных осадок и кренов. Рассмотренные в настоящей статье объекты относятся к сооружениям первого класса ответственности. В результате воздействия на их коробчатые фундаменты повышенных нагрузок достигающих значений средних давлений до PIImt = 680 кПа они получили осадки и крены превышающие предельно допустимые величины. При этом направление кренов во время возведения объектов меняется от 0 до 360°. Благодаря своевременно принятым техническим и технологическим приемам во время их возведений они эксплуатируются надежно.
Dependence of heat transfer resistance and air permeability resistance characteristics
Authors: Dushneva N.A. , Dmitrienko N.А.
Published: February 2024

The article is devoted to the analysis of the most popular designs of wall enclosure structures. Calculation of heat transfer resistance and air permeability of wall enclosure structures is carried out. The dependence of these characteristics is revealed. The most optimal design in terms of thermal characteristics and construction expenses were selected.
О невозможности проверки надежности темной энергии посредством измерения реликтового излучения
Authors: Кошман В.С.
Published: February 2024

В статье в развитие идеи горячего начала мира обозначены контуры описания расширяющейся от планковского времени с охлаждением Вселенной. Приведены аргументы, что результаты измерений реликтового излучения не подтверждают существование темной энергии.
Основные понятия и определения теории манипуляционных систем
Authors: Шемякин Г. И. , Исаева С. М.
Published: February 2024

Статья посвящена рассмотрению основных понятий теории манипуляционных систем – научной дисциплины, которая изучает структуру, кинематику и динамику механизмов в связи с их анализом и синтезом. Подробно освещены вопросы анализа и синтеза типовых механизмов и их систем.
Правовые аспекты обеспечения безопасности при использовании индивидуальных транспортных средств
Authors: Илюхина Д.С. , Драч А.А.
Published: February 2024

В статье авторами рассмотрены некоторые неблагоприятные аспекты и возможные негативные последствия в сфере современных технологичных транспортных средствах, а также в сфере безопасности дорожного движения
Особенности внедрения асинхронного привода на тяговом подвижном составе
Authors: Тужилкин А.В. , Исаева С.М.
Published: February 2024

В данной статье будет рассмотрены два типа тяговых электродвигателей. Основное содержание статьи посвящено сравнению двух типов тяговых электродвигателей, а также внедрению одного из типов тягового двигателя на отечественный подвижной состав на основании сравнительной характеристики.
Ресурсосбережения в сельском хозяйстве за счет совершенствования техники (на примере разработок компании John Deere)
Authors: Вардамацкая К.В.
Published: February 2024

В данной статье предлагается рассмотреть применение высокотехнологичной современной техники, технологий автопилотирования и анализа окружающей среды как элемента ресурсосбережения.
Роль дождевых червей в антропогенных почвах
Authors: Гузенко А.С. , Попова Ю.С.
Published: February 2024

Роль дождевых червей как одной из важнейших групп экосистемных инженеров в измененной человеком и естественной среде обитания получила все большее признание только в течение последних 30 лет, однако дождевые черви и люди тысячелетиями действовали сообща в создании ландшафтов. Благодаря биотурбирующему действию дождевых червей почва подвергается биологическим, химическим и физическим изменениям; питательные вещества перемещаются; органическое вещество разлагается и трансформируется; и окружающая биота взаимодействует как большой оркестр, где почвенные музыканты играют вместе на различных инструментах, но где дождевые черви играют ведущую роль, усиливая микробную активность и в целом стимулируя рост растений. В этой статье мы оцениваем замечательную роль дождевых червей в центре почвенных почвообразовательных процессов в антропогенных ландшафтах.
Бонитировка почв Краснодарского края
Authors: Попова Ю.С. , Дрокина А.С.
Published: February 2024

Статья посвящена бонитировке почв в Краснодарском крае с целью определения их качественных характеристик и пригодности для сельскохозяйственного использования. В работе используются современные методы исследования почвенных свойств, а также анализ данных о климате и рельефе региона. Результаты бонитировки предоставляют информацию о плодородии почв, поддерживая рациональное землепользование и оптимизацию агротехнических практик в условиях Краснодарского края.
Where are the Taekwondo Demonstrations Going?: Keyword Analysis of the National Taekwondo Demonstration Team Using Big Data
Authors:   The World Society of Taekwondo Culture, Lee Seung-Jin
Published: February 2024

This study was conducted through theoretical consideration on the effect of managers' communication styles on rapport formation and management performance. The subjects of the study were 207 parents of Taekwondo studio trainees and analyzed using SPSS 18.0 and AMOS. As a result of the study, it was found that the manager's communication style had a static effect on rapport formation, and the manager's communication style had a static effect on sustainability. In addition, the formation of rapport with managers and trainee parents affected the sustainability. Therefore, Taekwondo studio managers should recognize the importance of communication style when consulting with trainee parents and try to form a rapport with trainee parents. This is because it is an important factor in the management performance of the Taekwondo gym.
Evaluation of the effectiveness of real-time elastography in the differential diagnosis of benign and malignant thyroid nodules
Authors: TUNA Lale , KAVUKCU Gulgun , HEKİMSOY İlhan , MAKAY Özer , ERTAN Yeşim , TAMSEL Sadık
Published: February 2024

Aim: The aim of this study was to evaluate the efficiency of real-time elastography (RTE) in the differential diagnosis of thyroid nodules.
Materials and Methods: Fifty-two patients with 60 thyroid nodules were included in this study. Real-time elastography examinations were performed on the axial and longitudinal planes. Elastography images were classified between score 1 (whole nodule is soft) and score 5 (hardness in whole nodule and surrounding tissues). Nodules with scores of 1, 2 and 3 were considered benign, and nodules with scores of 4 and 5 were considered malignant. Nodule-to-sternocleidomastoid and thyroid tissue-to-nodule strain ratios (SR) were calculated. The nodules were evaluated by means of size, echogenicity, border, presence of halo and microcalcifications. Elasticity scores and mean strain ratios of all nodules were compared with the cytological or histopathological diagnosis.
Results: Forty-three of all cases were benign, and seventeen were malignant. Hypoechogenicity, microcalcifications and absence of halo were statistically related but irregular margins, and a high elasticity score were not statistically related to malignancy. The diagnostic performance of strain ratio was found insignificant. Nodule echogenicity had the highest accuracy among all nodule characteristics.
Conclusion: Diagnostic performance of real-time elastography in the differentiation of benign and malignant thyroid nodules is suboptimal. Real-time elastography is not an alternative to gray scale ultrasound.
Groupwork as a tool to combat loneliness among older people
Authors: Heathcote Julie , Swee Hong Chia
Published: February 2024

One of the current care strategies aims to keep older people in their own homes, however independent living and caring for an ageing partner can exacerbate loneliness. Loneliness has been described as an unwelcome feeling or lack of companionship. Help the Aged has pointed out that participation in meaningful activities can reduce isolation and loneliness. The case studies of two different groups of older people show the positive impact of groups on older group members and the staff working with them. By providing companionship, engagement, support and activity, groupwork can bring structure to the lives of older people and their carers who may be feeling ‘lonely’ and ‘isolated’ and consequently can impact upon their quality of life. Groupwork is by no means the solution to reducing social isolation for everyone, however for some people it is a positive step in the right direction.
Participants’ perceptions of groupwork in the management of cancer symptoms in older people
Authors: Belchamber Caroline
Published: February 2024

This paper explores groupwork within rehabilitative palliative care on three distressing cancer symptoms: pain, dyspnoea and fatigue. This was achieved through qualitative methodology using a phenomenological orientated psychological approach in a cohort with a median age of 66 years. Groupwork, which included: social, exercise and divertional therapy groups were seen as important components within rehabilitative palliative care. Through semi-structured interviews the participants’ perceptions of their symptoms, beliefs and attitudes towards their groupwork within rehabilitative palliative care were explored. The relevance and benefits of the groupwork were then identified using quality of life markers established during data analysis. The main factors uncovered and shown to contribute to the groupwork were: environmental factors, mobilisation and normalisation. However more research is required to comprehend how different forms of groupwork can help reduce pain, dyspnoea and fatigue in older people with cancer.
Social efficacy in the reintegration of the self
Authors: Cabness Jessica
Published: February 2024

Freud discounted that persons living with schizophrenia could benefit from psychoanalysis because they were incapable of attaining insight. Departing from classical Freudian psychodynamic theory, Heinz Kohut formulated a theory of self psychology to give a prominent place to the development of the self in an interactional field. Using the interactional field, Harry Stack Sullivan applied relational theory in his work with schizophrenics. Now, drawing on Kohut’s theory and Sullivan’s pioneering work, the author retrospectively analyzes the interactional fields and processes observed in her groupwork with older adults with schizophrenia residing in long-term care. Data on psychosocial interventions for older adults with schizophrenia are lacking. This article underscores the need for addressing this gap in the research.
Desempeño docente: las consecuencias del burnout y su relación con factores protectores
Authors: Prieto-Molinari Diego E. , Choy-Vessoni Rosana A.
Published: February 2024

El síndrome de burnout es un indicador de salud ocupacional que afecta el proceso de enseñanza-aprendizaje y puede perjudicar la calidad educativa ofrecida por las instituciones. La relación entre características individuales y el ambiente laboral pueden afectar de distintas formas al desempeño docente. La presente investigación busca analizar el ajuste de un modelo que predice el desempeño docente en base al síndrome de burnout, incluyendo también características individuales y de percepción del ambiente laboral en docentes universitarios. La muestra se compone de 94 docentes, quienes brindaron información ligada al rasgo de conciencia, el nivel de burnout, de engagement, de su desempeño docente y de su percepción del ambiente laboral. Esta investigación de tipo transversal cuantitativa genera modelos de ecuaciones estructurales para revisar sus hipótesis. El segundo modelo es el que mejor ajuste muestra, considerando el desempeño a través de cada componente por separado. Este modelo muestra que el principal predictor del desempeño docente es la percepción del ambiente laboral (β = .116 - .239). Se discuten las implicancias de los hallazgos, prestando especial atención a la naturaleza del constructo de desempeño.
Structure and Luminescent Properties of Niobium Modified ZnO-B2O3:Eu3+ Glass
Authors: Iordanova Reni , Milanova Margarita , Yordanova Aneliya , Aleksandrov Lyubomir , Nedylkov Nikolay , Kukeva Rosica , Petrova Petia
Published: February 2024

In this study we have investigated the effect of the addition of Nb2O5 (up to 5 mol%) on the structure and luminescent properties of ZnO-B2O3 glass doped with 0.5 mol % Eu2O3 by using of infrared (IR), Raman and photoluminescence (PL) spectroscopy. Physical properties as molar volume, oxygen packing density and glass transition temperature were determined using the results of differential thermal analyisis (DTA) and Archimedes principle for density. IR and Raman spectra revealed that niobium ions incorporate into the base zinc borate glass as NbO4 trtraherda and NbO6 octahedra. A strong red emission from the 5D0 level of Eu3+ ions was registered under near UV (392 nm) excitation using the sharp 7F0 - 5L6 transition of Eu3+. The integrated fluorescence intensity ratio R (5D0 → 7F2/5D0 → 7F1) was calculated to estimate the degree of asymmetry around the active ion, suggesting a location of Eu3+ in non-centrosymmetric sites. The higher Еu3+ luminescence emission observed in zinc borate glasses containing 1÷5 mol% Nb2O5 compared to the Nb2O5-free zinc borate glass evidences that Nb2O5 is suitable component for modification of host glass structure and improving the emission intensity.
The Effect of Cerium Oxide (CeO2) on Ischemia-Reperfusion Injury in Skeletal Muscle in Mice with Streptozocin-Induced Diabetes
Authors: Özer Abdullah , Şengel Necmiye , Küçük Ayşegül , Yığman Zeynep , Özdemir Çağrı , Kılıç Yiğit , Dursun Ali Doğan , Bostancı Hasan , Kip Gülay , Arslan Mustafa
Published: February 2024

Objective: Lower extremity ischemia-reperfusion injury (IRI) may occur with trauma-related vascular injury and various vascular diseases, during the use of a tourniquet, temporary clamping of the aorta in aortic surgery, and acute or bilateral acute femoral artery occlusion. Mitochondrial dysfunction and increased basal oxidative stress in diabetes may cause an increase in the effects of increased reactive oxygen species (ROS) and mitochondrial dysfunction due to IRI. It is of great importance to examine therapeutic approaches that can minimize the effects of IRI, especially for patient groups under chronic oxidative stress. Cerium oxide (CeO2) nanoparticles mimic the antioxidant enzymes and act as a catalyst that scavenges ROS.
In this study, it was aimed to investigate whether CeO2 has protective effects on skeletal muscles in lower extremity IRI in mice with streptozocin-induced diabetes.
Methods: A total of 38 Swiss albino mice were divided into six groups as follows: control group (group C, n=6), diabetes group (group D, n=8), diabetes-CeO2 (group DCO, n=8), diabetes-ischemia/reperfusion (group DIR, n=8), and diabetes-ischemia/reperfusion-CeO2 (group DIRCO, n=8). DCO and DIRCO groups were given doses of CeO2 0.5mg/kg intraperitoneally 30 minutes before the IR procedure.
A 120-minute ischemia-120-minute reperfusion period with 100% O2 was performed. At the end of the reperfusion period, muscle tissues were removed for histopathological and biochemical examinations.
Results: Total antioxidant status (TAS) levels were found to be significantly lower in group DIR compared with group D (p=0.047 and p=0.022, respectively). In group DIRCO and total oxidant status (TOS) levels were found to be significantly higher than in group DIR (p
Logistics Center Selection and Logistics Network Construction from the Perspective of Urban Geographic Information Fusion
Authors: Ma Zhanxin , Zheng Xiyu , Liang Hejun , Luo Ping
Published: February 2024

The last-mile logistics in cities have become an indispensable part of the urban logistics system. This study aims to explore the effective selection of last-mile logistics nodes to enhance the efficiency of logistics distribution, strengthen the corporate distribution image, and further reduce corporate operating costs and alleviate urban traffic congestion. This paper proposes a clustering-based approach to identify urban logistics nodes from the perspective of geographic information fusion. This method comprehensively considers several key indicators, including the coverage, balance, and urban traffic conditions of logistics distribution. Additionally, we employed a greedy algorithm to identify secondary nodes around primary nodes, thus constructing an effective nodal network. To verify the practicality of this model, we conducted an empirical simulation study using the logistics demand and traffic conditions in the Xianlin District of Nanjing. This research not only identified the locations of primary and secondary logistics nodes but also provided a new perspective for constructing the urban last-mile logistics system, enriching the academic research related to logistics node construction. The results of this study are of significant theoretical and practical importance for optimizing urban logistics networks, enhancing logistics efficiency, and promoting the improvement of urban traffic conditions.
The Accumulations of Manganese by the Wild Plants Grown on Gumuskoy Mining Soils
Authors: Konakcı Nevin , SASMAZ Ahmet
Published: February 2024

This study examined the accumulations and transfer of manganese into 11 wild plants from the mining soils of Gümüşköy, Turkey. The greatest silver resource in Turkey is found in the Gümüsköy mining area, which is situated roughly 25 kilometers to the west of Kütahya. ICP-MS was used to determine the Mn contents in soil and plant samples that were taken from the field. In the research area, the average Mn concentrations in the soil, roots, and shoots of wild plants were 1872, 1076, and 1048 ppm, respectively. Based on their ECS and ECR values, the plants were divided into three groups: the best plants, good plants, and candidate plants. While Glaucium flavum, Carduus nutans, Phlomis sp., Onosma sp., and Verbascum thapsus were selected as the best plants, Cynoglossum officinale, Anchusa arvensis were determined as good plants, and the others (Alyssum saxatile, Centaurea cyanus, Silene compacta, Isatis were determined as candidate plants. According to the current study, all of the best and good plants in the study region had a very high ability to remove Mn. As a result, these plants can be helpful in studies involving phytoremediation or remediation of Mn-polluted soil.
Bioindicators for Assessing Soil Quality in the Jun Jun Micro-watershed
Authors: Meneses Quelal Orlando , Yánez Yánez Angel Wilfrido
Published: February 2024

Evaluating soil quality across various altitudinal gradients, both with and without vegetative cover, is crucial for the proper functioning of soil and optimal crop growth, thereby contributing to the sustainability of agroecosystems. Although the altitudinal gradient significantly influences soil quality, the ability to predict this quality, expressed through an index, in soils with and without vegetative cover, is still insufficiently explored. This study aimed to assess soil quality in the Jun Jun micro-watershed, located in the Tungurahua region, Ecuador. To achieve this objective, three categories of altitudinal gradients were selected: less than 2800 meters above sea level (masl), between 2800 and 2900 masl, and greater than 2900 masl. A total of 24 soil samples were collected in the mentioned gradients, considering both areas with and without vegetative cover. The indicators used included chemical and biological parameters such as soil organic carbon (OC), earthworm density (WD), earthworm biomass (WB), organic matter (OM), pH, total nitrogen (TN), and organic carbon (OC). The results revealed that in areas with altitudinal gradients below 2800 masl, soil quality index values were higher compared to other altitudes. In vegetated areas, a decrease in index values was observed as the altitudinal gradient increased, indicating a deterioration in soil quality with altitude. These findings are significant in providing a quantitative assessment of the effects of altitudinal gradient and vegetative cover influence on soil quality.
Microcalorimetry Techniques for Studying Interactions at Solid-Liquid Interface: A Review
Authors: Hu Heshu , Wu Jiazhong , Zhang Minghui
Published: February 2024

Solid-liquid interfacial phenomena play an essential role in our everyday lives and are often regarded as the outcome of interactions at the solid-liquid interface. However, the intricately intrinsic mechanism underlying interfacial interactions renders in-situ simulations and direct measurements challenging. As an effective analytic method for studying solid-liquid interfacial interactions, Microcalorimetry can provide the most basic thermodynamic information (including changes in enthalpy, entropy, and Gibbs free energy during solid-liquid binding/separation processes), which is extremely crucial for understanding interaction directionality and limitation. This review is dedicated to highlighting the pivotal role of microcalorimetry in studying solid-liquid immersion and adsorption processes. Specifically, we provide an overview of the commonly employed microcalorimetric methods, delve into the influence factors of enthalpy change, and finally discuss the specific applications of microcalorimetry in studying various solid-liquid binding processes. There remains a vast expanse of thermodynamic information regarding solid-liquid interactions that await exploration via calorimetry.
Development and Effectiveness of Dietary Self-Care Promotion Program using Online Community for Hemodialysis Patients: A Randomized Controlled Trial
Authors: Kim Hana , Cho Mi-Kyoung
Published: February 2024

Background: This study aimed to develop and evaluate a dietary self-care promotion program for hemodialysis patients based on Hurley's self-efficacy model. Methods: The needs of hemodialysis patients were identified, and an online community-based dietary self-care promotion program was developed with expert evaluations. 44 hemodialysis patients were randomly assigned to an experimental group (n=22) and a control group (n=22). The program was applied to the experimental group for four weeks. Before and after the intervention, as well as four weeks after the intervention, dietary self-efficacy, dietary self-care behavior, interdialytic weight gain, serum phosphorus, and serum potassium were assessed in both groups. Results: Significant differences over time and between groups were observed in dietary self-efficacy, interdialytic weight gain, serum phosphorus, and serum potassium. The interaction between time and group was also significant. While no significant differences were found over time in dietary self-care behavior, significant group differences and interaction effects between time and group were identified. Conclusions: The results indicate that the dietary self-care promotion program using an online community for hemodialysis patients is more effective in enhancing dietary self-efficacy and dietary self-care behavior compared to conventional treatment. This suggests the clinical applicability of the proposed dietary self-care promotion program.
Identification and Transformation of a New Powdery Mildew Resistance Gene PmCAHM From Landrace Changanhongmai Into Common Wheat
Authors: Chen Xueyan , Wang Yongfu , Han Guohao , Fa Jianzhong , Tan Qingqing , Liu Guoxia , Zhang Hong , Wang Yajuan
Published: February 2024

Powdery mildew is a severe disease causing substantial yield losses in wheat production worldwide. The Chinese wheat landrace Changanhongmai (CAHM) exhibits high resistance to the physiological race E09 of powdery mildew. This study aims to characterize the powdery mildew resistance gene in CAHM, and develop molecular markers for marker-assisted selection of wheat. To investigate the genetic characteristics of this resistant gene, we developed F1 plants, F2 generation population, and F2:3 families from a cross between CAHM and SY225. Genetic analysis demonstrated that all F1 plants were resistant to the disease, while the ratio of resistant to susceptible plants was 3: 1 in both the F2 population and F2:3 families, indicating that CAHM is inherited in a manner of single dominant powdery mildew resistance gene, which was tentatively designated as PmCAHM. By using bulk segregation analysis, we constructed a genetic map encompassing Xgwm273, Xwmc626, Xgwm11, Xgwm18, Xgdm28, Xgpw7812, Xgpw5195, Xwmc694 and PmCAHM. Among these markers, Xgpw7812 and Xgpw5195 were flanking markers tightly linked to PmCAHM at a genetic distance of 2.5 cM and 8.4 cM, respectively. Furthermore, nullisomic-tetrasomic analysis revealed that PmCAHM is located on chromosome 1B. These results indicate that PmCAHM differs from the internationally recognized powdery mildew resistance genes in both location and source. In addition, a new germplasm/line NW1748 with large seeds and powdery mildew resistance was developed from the cross and back cross populations of Fengyou 1718 (FY1718)/CAHM//FY 1718. Therefore, PmCAHM can serve as a novel powdery mildew resistance source for breeding of wheat by using NW1748 as the donor in the future.
Cardiac Arrest and Complete Heart Block: Complications after Electrical Cardioversion for Unstable Supraventricular Tachycardia in the Emergency Department
Authors: Marza Adina Maria , Barsac Claudiu , Sutoi Dumitru , Cindrea Alexandru Cristian , Herlo Alexandra , Trebuian Cosmin Iosif , Petrica Alina
Published: February 2024

Synchronous electrical cardioversion is a relatively common procedure in the emergency department (ED), often performed for unstable supraventricular tachycardia (SVT) or unstable ventricular tachycardia (VT). However, it is also used for stable cases resistant to drug therapy, which carry a risk of deterioration. In addition to the inherent risks linked with procedural sedation, there is a possibility of malignant arrhythmias or bradycardia, which could potentially result in cardiac arrest following this procedure. Here, we present a case of complete heart block unresponsive to transcutaneous pacing and positive inotropic and chronotropic drugs for 90 minutes, resulting in multiple cardiac arrests. The repositioning of the transcutaneous cardio-stimulation electrodes, one of them placed in the left latero-sternal position and the other at the level of the apex, led to immediate stabilization of the patient. Extubation of the patient was performed the following day, while full recovery and discharge within 7 days, after insertion of a permanent pacemaker.
How Does Airway Surface Liquid Composition Vary in Different Pulmonary Diseases, and How Can We Use This Knowledge to Model Microbial Infections?
Authors: Walsh Dean , Bevan Jennifer , Harrison Freya
Published: February 2024

Growth environment greatly alters many facets of pathogen physiology, including pathogenesis and antimicrobial tolerance. The importance of host-mimicking environments for attaining an accurate picture of pathogen behaviour is widely recognised. Whilst this recognition has translated into the extensive development of artificial cystic fibrosis (CF) sputum medium, attempts to mimic the growth environment in other respiratory disease states have been completely neglected. The composition of the airway surface liquid (ASL) in different pulmonary diseases is far less well characterised than CF sputum, making it very difficult for researchers to model these infection environments. In this review we discuss the components of human ASL, how different lung pathologies affect ASL composition, and how different pathogens interact with these components. This will provide researchers interested in mimicking different respiratory environments with the information necessary to design a host-mimicking medium, allowing for better understanding of how to treat pathogens causing infection in these environments.
Vaccination Against Rabbit Hemorrhagic Disease Virus 2 Using a Baculovirus Recombinant Vaccine Provides Durable Immunity in Rabbits
Authors: Bosco-Lauth Angela M. , Schueler Amber , Midthun Edward , Tyra Hailey , Held Amanda , Hood Claire , Quilici Marissa , Erickson Sara , Glover Sherry , Gustafson Bradley , Anderson Gary
Published: February 2024

Rabbit hemorrhagic disease virus disease 2 (RHDV2) emerged in the United States in 2018 and has spread in both domestic and wild rabbits nationwide. The virus has a high mortality rate and can spread rapidly between infected individuals. Vaccination against RHDV2 provides the best protection against disease and should be considered by all rabbit owners. Here, we investigate the duration of immunity provided by vaccination with the Medgene Platform conditionally licensed commercial vaccine 6 months following the initial series. Rabbits received either the vaccination or a placebo and were challenged with RHDV2 6 months later. All vaccinated rabbits survived challenge whereas 18/19 non-vaccinated controls succumbed to infection within 10 or fewer days post-challenge. These results demonstrate lasting immunity following vaccination with the Medgene RHDV2 vaccine.
Biomarkers of inflammation and control of asthma in children
Authors:   E.A.Wagner Perm State Medical University, Perm, Russian Federation, Alieva Yu.S. , Furman E.G. ,   E.A.Wagner Perm State Medical University, Perm, Russian Federation, Khuzina E.A. ,   E.A.Wagner Perm State Medical University, Perm, Russian Federation, Abdrakhmanova S.T. ,   Astana Medical University, Astana, Republic of Kazakhstan, Ponomareva M.S. ,   E.A.Wagner Perm State Medical University, Perm, Russian Federation, Sheludko V.S. ,   E.A.Wagner Perm State Medical University, Perm, Russian Federation, Sokolovsky V.L. ,   Ben-Gurion University of the Negev, Beer-Sheva, Israel
Published: February 2024

Asthma is the heterogeneous lung disease, caused by a chronic inflammation, characterized by various phenotypes, for the identification of which biomarkers can be used. However, most biomarkers are still experimental and have limitations for clinical practice. Objective. To study the link between the values of T2-inflammatory biomarkers in children with poor asthma control and features of asthma treatment. Patients and methods. The study included 100 patients aged 5 to 17 years (average age 13 years) with an established diagnosis of asthma. The level of asthma control of patient was assessed using asthma control tests and asthma control tests in children (ACT and C-ACT). The following markers were studied: the level of total immunoglobulin E (total IgE), peripheral blood eosinophils, fractional exhaled nitric oxide (FeNO), the number of eosinophils in nasal smears. The significance of the marker was determined by statistical data analysis methods used in medicine. Results. Despite the prescribed basic therapy, most children do not achieve normal asthma control. It was revealed that 43% of patients had one or more elevated markers of T2 inflammation. Children with partially controlled and uncontrolled asthma had high levels of total IgE (≥100 IU/ml), elevated levels of eosinophils in the blood (≥400 cells/ml) and high FeNO values (≥20 parts per billion). The most significant biomarker of poor asthma control in children is the level of total serum IgE ≥100 IU/ml. It has been established that allergic asthma in children is usually combined with the predominance of Th2 lymphocytes and eosinophilic inflammation of the respiratory tract. Conclusion. T2-inflammation biomarkers can be used as indicators of respiratory tract inflammation activity and to assess asthma control in children. Key words: biomarkers, asthma, children, asthma control, T2-inflammation
Comprehensive assessment of the health of children with chronic adenoiditis 4–7 years of different types of psychosomatic constitution
Authors:   Ivanovo State Medical Academy, Ivanovo, Russian Federation, Sultanov I.S. , Boboshko I.E. ,   Ivanovo State Medical Academy, Ivanovo, Russian Federation, Zhdanova L.A. ,   Ivanovo State Medical Academy, Ivanovo, Russian Federation
Published: February 2024

The article presents the comprehensive assessment of the health of preschool children with chronic adenoiditis, taking into account different types of psychosomatic constitution. The main group included 196 children aged 4 to 7 years with the verified diagnosis of chronic adenoiditis; another 140 frequently ill children (with reduced resistance without chronic adenoiditis) made up the control group. It was revealed that the state of health of mothers of patients with chronic adenoiditis in many parameters had significant differences in children of extra- and introverted types of psychosomatic constitution (hereinafter referred to as extra– and introverts). Introverted children from the main group were significantly more likely to suffer from allergic rhinitis – in 47 (69.1%) cases versus 2 (2.9%), and atopic dermatitis – 50 (73.5%) versus 4 (5.9%), respectively. The type of psychosomatic constitution significantly affects the main clinical manifestations, course and development of complications of chronic adenoiditis and acute respiratory diseases in children of both groups, as well as the indicators of their neuropsychiatric development and the types of prevailing behavior. The data obtained in the study should be taken into account when developing individualized rehabilitation programs. Key words: children with reduced resistance, introverts, psychosomatic constitution, chronic adenoiditis, extroverts
The effectiveness of the intranasal recombinant interferon alpha-2b medicine in pregnant women and newborns of the Republic of Mordovia
Authors:   Mordovia Republic Children's Clinical Hospital, Saransk, Republic of Mordovia, Russian Federation, Soldatov О.М. , Ledyaikina L.V. ,   Ogarev National Research Mordovia State University, Saransk, Republic of Mordovia, Russian Federation, Krasnov V.V. ,   Privolzhsky Research Medical University, Nizhny Novgorod, Russian Federation, Vereshchagina V.S. ,   Ogarev National Research Mordovia State University, Saransk, Republic of Mordovia, Russian Federation, Pimenov D.А. ,   Privolzhsky Research Medical University, Nizhny Novgorod, Russian Federation, Ledyaikina S.A. ,   Ogarev National Research Mordovia State University, Saransk, Republic of Mordovia, Russian Federation, Radynova S.B. ,   Ogarev National Research Mordovia State University, Saransk, Republic of Mordovia, Russian Federation
Published: February 2024

Objective. To study the effectiveness of the interferon-based medicine Grippferon® for the prevention of acute respiratory viral infections (ARVI) in pregnant women and newborn children. Patients and methods. A non-randomised single-centre prospective cohort study was conducted for 6 months, which included a total of 154 pregnant women and 80 newborn children. Participants were divided into 2 groups – main and control. Patients were under the supervision of Saransk city medical organisations. During the study the intranasal recombinant interferon alpha-2b-based medicine Grippferon® (nasal drops and spray) was used in the main groups. Results. No cases of ARVI were observed among newborns of both groups. During preventive use of the medicine Grippferon® in pregnant women (I, II and III trimesters) a significant reduction in the frequency and severity of ARVI was revealed in main groups compared to the control ones. There were no cases of adverse events among the study participants. Conclusion. The study showed a high effectiveness of the intranasal recombinant interferon α-2b-based medicine Grippferon® in groups of pregnant women for the prevention of ARVI. There is a need for further long-term and large-scale studies in newborns. In all main groups the safety of the given medicine was observed. Key words: interferon alpha, newborns, pregnant women, prevention, intranasal use, Grippferon
Aggravation of vitamin D deficiency from birth till high school age in autumn-summer season in Khabarovsk
Authors:   The Far Eastern State Medical University, Khabarovsk, Russian Federation, Senkevich О.А. , Chebargina M.A. ,   The Far Eastern State Medical University, Khabarovsk, Russian Federation, Plotonenko Z.A. ,   The Far Eastern State Medical University, Khabarovsk, Russian Federation, Kovalsky Yu.G. ,   The Far Eastern State Medical University, Khabarovsk, Russian Federation, Ryabtseva E.G. ,   The Far Eastern State Medical University, Khabarovsk, Russian Federation
Published: February 2024

Objective. To determine the vitamin D supply of children in different age groups to identify risk groups based on its low status. Patients and methods. Study design: observational, analytical, cross-sectional. By using a random sampling method, the study included relatively healthy children aged 0 to 18 years (n = 226), undergoing examination in medical organizations of the Ministry of Health of the Khabarovsk Territory in the autumn-winter period. Children were divided into groups, according to the age range: newborns (n = 67), early years (1–3 years, n = 58), preschool age (4–6 years, n = 37), primary school age (7–9 years, n = 34) and teenagers (10–18 years, n = 30). Quantitative determination of the level 25-hydroxyvitamin D (25(OH)D) in blood serum was performed by enzyme-linked immunosorbent analysis. Results. The low vitamin D level was detected is one in every two children in the population in Khabarovsk (47.8%). An increase in the prevalence of vitamin D deficiency was found as children grew older (p < 0.001) and, accordingly, a decrease in its adequate supply (p < 0.001). The highest prevalence of low vitamin D status was determined in children aged 10–18 years (80.0%), slightly less in primary schoolchildren (67.6%), vitamin D deficiency and insufficiency occurred in preschool and early age children in 64 .9 and 46.6% of cases, respectively, and significantly less often in newborns – 14.9% (p < 0.001). The prevalence of vitamin D deficiency in school-age children was 2 times (OR = 1.939; 95% CI 1.011–3.720) higher compared to children aged 1 to 6 years. Conclusion. The study demonstrates the high prevalence rate of children with low vitamin D level in Khabarovsk, with the most vulnerable group being teenagers, the reproductive potential of the region. Key words: vitamin D, children, newborns, primary school children, teenagers