bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of orofacial tissue pressure and quality of life in adult women undergoing hyaluronic acid lip fillers
Authors: Marino Mirella Milla , Bettiol Nicole Barbosa , Siéssere Selma , Magri Lais Valencise , Mazzi-Chaves Jardel Francisco , de Vasconcelos Paulo Batista , Junior Reinaldo Luiz Brunello , Cardoso Alice Helena de Lima Santos , Branco Thamyres , Regalo Simone Cecilio Hallak , Palinkas Marcelo
Published: February 2025

Objectives:

Maintaining the symmetry and thickness of the lips is vital for well-being and quality of life, since disharmony, often common in the adult female population, intensifies with aging, affecting esthetic perception and orofacial function. This longitudinal study aimed to analyze orofacial tissue pressure (tongue, lips, and cheeks) before (I), 30 days (II), and 60 days (III) after lip augmentation in adult women, in addition to evaluating their perceived quality of life.

Material and Methods:

Twenty-two women (mean age 35.4 ± 12.3 years) with normal occlusion participated. Orofacial tissue pressure was measured using the Iowa oral performance instrument (IOPI). Quality of life was assessed using the Glasgow Benefit Inventory (GBI) questionnaire. Hyaluronic acid was the material used for augmentation. Data were analyzed using repeated measures analysis of variance and Bonferroni correction (P < 0.05). Descriptive frequency analysis of the GBI data was performed, including mean, standard deviation, median, and quartiles (25–75%).

Results:

There was a reduction in tongue pressure after 60 days (I vs. III, P = 0.002) and an increase in right cheek pressure after 30 days (I vs. II, P = 0.04). Left cheek pressure gradually increased (I vs. II, P = 0.05; I vs. III, P = 0.02). The mean GBI score was 27.4 (20.4), with the general health, physical/health, and social domains scoring 28.4 (20.3), 28.0 (20.1), and 25.7 (26.0), respectively.

Conclusion:

The study suggests functional adaptations in orofacial tissues and an improvement in quality of life following lip augmentation in adult women.
Challenges and Opportunities of Elderly Care during COVID-19 Era
Authors: Nag Kaushik , Sen Sujata
Published: February 2025

The coronavirus disease 2019 (COVID-19) pandemic has affected the geriatric population adversely. The elderly are more susceptible to COVID-19 infection and can develop severe COVID-19 infection due to weakened immune systems as well as the presence of comorbidities such as hypertension, cardiovascular disease, diabetes, and chronic kidney disease. Elderly staying with multi-generational households also increases their susceptibility to COVID-19 infection. Geriatric accounted for more than half of the COVID-19 deaths during this pandemic. Access to healthcare was jeopardized during the lockdown due to the closing down of public hospitals and the acute crisis of the workforce trained in geriatric care. The paucity of an adequate number of skilled geriatricians in India is a big problem in dealing with geriatric problems such as dementia, depression, delirium, urinary incontinence, and falls. COVID also increased out of pocket expenditure due to frequent COVID testing and treatment which created a huge economic burden on lower and middle class families. The biggest hurdle for the elderly has been accessing healthcare, buying regular medicines, groceries, and banking during the pandemic. Increased mental strain, general mental health problems, decreased exercise, and loss of socialization have negative effects on the elderly population. Early identification of high risk elderly is the foremost step in protecting vulnerable populations. Urgent action should be taken to prioritize testing of elderly populations for early detection and treatment of COVID infection. Community-based services and support to the elderly, including social and legal services, should be maintained. Training of healthcare professionals on geriatric care and the use of teleconsultation can be a way forward in geriatric health care.
Postpartum Depression: Overview and Management
Authors: Chaudhary Sarika
Published: February 2025

The mental health of a mother during her pregnancy has a significant impact on the mother, her child, and the family. Psychopathologies such as postpartum depression (PPD) are among the most common. Many women are reluctant to acknowledge their sadness to others after having a child. Postpartum hormone fluctuations may be the cause of the baby blues. PPD is characterized by symptoms of depression, such as ongoing melancholy, disinterest, low self-esteem, disturbed sleep, appetite loss, anxiety, impatience with a hostile attitude toward newborns, self-blame, and feelings of humiliation. There has been a lot published about the symptoms, risk factors, and therapies for PPD, but not much research has been done on why women wait so long to get therapy. Remission, or the resolution of depressive symptoms, is the aim of PPD treatment. It could be required to coordinate with therapists and refer patients to psychiatrists for antidepressant medication. A complete recovery depends on early discovery and treatment.
Assessment of Organophosphorus Pesticide Exposure Through Red Blood Cell Acetylcholinesterase Levels in Blood of Urban Residents
Authors: Yadav Anupa , Kumari Kalyani , Das Surajit , Chakrabarti Amit , Chhangte Jacob V. L. Malsawma
Published: February 2025

Background

Chronic exposure to organophosphorus (OP) pesticides poses serious health risks. India, the largest pesticide producer in Asia, exposes its population to pesticide residues through air, water, and food. Human biomonitoring is a crucial tool for estimating exposure worldwide. OP compounds are potent cholinesterase inhibitors; acetylcholinesterase (AChE) inhibition can lead to symptoms from weakness to fatal respiratory or cardiac failure. Blood AChE assessment is widely used as a biomarker for cholinesterase inhibition due to OP exposure.

Objectives

The objectives of the study are to assess the level of red blood cell (RBC) acetylcholinesterase in urban residents of Kolkata city.

Material and Methods

AChE levels in RBC were measured by the Ellman method. The blood samples were collected through a becton dickinson and company (BD) vacutainer needle into BD vacutainer polystyrene tubes containing K2 ethylenediaminetetraacetic acid. Sociodemographic details of study individuals were collected by questionnaire.

Results

Blood sample was collected from healthy volunteers (n = 25) aged 20–58 years. The study duration was from February to July 2019. The activity of cholinesterase (µmoles/min/mL) ranges from 1.48 to 2.32 (mean 2.0 ± 0.24). 3% of study individuals had cholinesterase <2.0 µmoles/min/mL. AChE and hemoglobin levels showed a moderate positive significant correlation (r = 0.44; P = 0.03) among study individuals. Females (1.71 µmoles/min/mL) have lower AChE than males (2.13 µmoles/min/mL). Levels of AChE were reduced in middle-class individuals than upper middle. AChE levels were more prone to reduction in the older age group.

Conclusion

Study individuals had indirect exposure to pesticides. Reduction in cholinesterase levels may lead to various health effects. Therefore, biomonitoring of pesticide exposure among the general population is also very imperative. AChE enzyme level in RBC may be used as a screening tool for OP pesticide exposure.
Обеспечение энергетической безопасности промышленных предприятий Российской Федерации
Authors: Гретченко А.И. , Гретченко А.А.
Published: February 2025

В статье предложены направления по нейтрализации угроз безопасности энергетического типа, исходя из сложившейся ситуации, обусловленной международными санкциями. Реализация комплекса мер, направленных на обеспечение энергетической безопасности промышленных предприятий России и ее регионов, создаёт предпосылки для значительного повышения эффективности функционирования топливно-энергетического комплекса страны. Эти меры способствуют не только укреплению энергетической устойчивости, но и достижению стратегических целей, предусмотренных концепцией национальной и экономической безопасности Российской Федерации. Такой подход позволяет минимизировать внутренние и внешние риски, повысить энергоэффективность и обеспечить стабильное развитие Российской Федерации в соответствии с общенациональными приоритетами.

The article suggests directions for neutralizing energy-type security threats based on the current situation caused by international sanctions. The implementation of a set of measures aimed at ensuring the energy security of industrial enterprises in Russia and its regions creates prerequisites for a significant increase in the efficiency of the country's fuel and energy complex. These measures contribute not only to strengthening energy sustainability, but also to achieving the strategic goals envisaged by the concept of national and economic security of the Russian Federation. This approach makes it possible to minimize internal and external risks, increase energy efficiency and ensure the stable development of the Russian Federation in accordance with national priorities.
ЭКОНОМИЧЕСКАЯ ДЕЯТЕЛЬНОСТЬ В АРКТИЧЕСКОЙ ЗОНЕ РОССИЙСКОЙ ФЕДЕРАЦИИ И ОБЕСПЕЧЕНИЕ ЕЁ БЕЗОПАСНОСТИ
Authors: Николаев И.Н. , Нижегородов В.С.
Published: February 2025

Статья посвящена рассмотрению вопросов обеспечения безопасности экономической деятельности в Арктической зоне Российской Федерации в условиях нарастания международной напряжённости, проявления со стороны всё большего количества стран повышенного интереса к Арктике из-за наличия в её пределах огромных запасов полезных ископаемых, включая нефть, газ и др. Раскрыты возможные причины возникновения вооруженного конфликта в Арктической зоне Российской Федерации и меры по их предотвращению. В статье много внимания уделено Северному морскому пути, как важной транспортной магистрали между регионами европейской части России и Дальнего Востока, а также государствами Европы и Тихоокеанского региона.

The article is devoted to the issues of ensuring the security of economic activity in the Arctic zone of the Russian Federation in the context of increasing international tension, the manifestation of an increased interest in the Arctic by an increasing number of countries due to the presence of huge mineral reserves within its borders, including oil, gas, etc. The possible causes of the armed conflict in the Arctic zone of the Russian Federation and measures to prevent them are revealed. The article focuses a lot on the Northern Sea Route as an important transport route between the regions of the European part of Russia and the Far East, as well as the states of Europe and the Pacific region.
КОСМИЧЕСКИЙ МОНИТОРИНГ ЗАХОРОНЕНИЯ ТВЕРДЫХ КОММУНАЛЬНЫХ ОТХОДОВ В ЗАДАЧАХ ОБЕСПЕЧЕНИЯ ЭКОЛОГИЧЕСКОЙ БЕЗОПАСНОСТИ
Authors: Шахраманьян М.А.
Published: February 2025

В статье рассматривается вопросы применения данных дистанционного зондирования Земли из космоса для выявления несанкционированных захоронений объектов твердых коммунальных отходов и контроля правильности эксплуатации существующих полигонов твердых коммунальных отходов в соответствие с нормативными документами. Представлены предложения по реализации проекта «Космический экологический дозор». Статья представляет интерес для специалистов в области экологии, инженерии и информационных технологий.

The article considers the issues of using remote sensing data from space to identify unauthorized disposal sites of municipal solid waste and control the correct operation of existing municipal solid waste landfills in accordance with regulatory documents. Proposals for the implementation of the "Space Environmental Watch" project are presented. The article is of interest to specialists in the field of ecology, engineering and information technology.
ПОВЫШЕНИЕ НАДЁЖНОСТИ ФУНКЦИОНИРОВАНИЯ ЭЛЕМЕНТОВ ИНФОРМАЦИОННО-УПРАВЛЯЮЩИХ СИСТЕМ С ПРИМЕНЕНИЕМ ВСТРОЕННЫХ СРЕДСТВ ДИАГНОСТИРОВАНИЯ
Authors: Клейман Л.А. , Кон Е.Л. , Фрейман В.И. , Южаков А.А.
Published: February 2025

В статье рассматривается вопрос повышения надёжности автономных элементов информационноуправляющих систем (ИУС). Для повышения надёжности предполагается использование комбинированной системы диагностирования. В такой системе за распределение диагностических функций и функциональный контроль отвечает внешнее устройство (контроллер), а тестовое диагностирование выполняют назначенные для этого встроенные средства в структуре самих элементов ИУС. В связи с тем, что процессы диагностирования загружают ресурсы элементов ИУС, важной видится задача реконфигурирования диагностических функций в зависимости от производительности элемента в определённый момент времени. В данной работе был проведён аналитический обзор состояния описанной выше проблемы, показана её актуальность. Была разработана модель системы диагностирования, создан алгоритм реконфигурации диагностических функций среди элементов. Приведён пример расчёта для разработанного алгоритма, проанализированы результаты, даны рекомендации. Были сформулированы дальнейшие направления исследования.

Introduction. The paper addresses the issues of improving the reliability of elements of information control systems (ICS). The advantages of using an integrated test diagnosis system are presented. It is also shown that the application of such a system requires smart distribution of diagnostic functions between the elements of the ICS. Thus, it is imperative to consider the performance characteristics of system elements. In our studies, such characteristics were the battery charge and processor load. The aim of the research was to create a methodology for improving the reliability of operation of ICS elements by developing and implementing an integrated system of test diagnosis with the possibility of redistribution of diagnostic functions considering the elements performance characteristics. Methods. Currently, the problem has been analyzed, existing methods have been described and their disadvantages have been revealed. A new method of increasing the reliability of ICS elements has been developed. Method includes a diagnostic model and an algorithm for reconfiguring diagnostic functions. Findings. There is presented an example of application of the developed algorithm. We carried out a comparative analysis with the existing solutions and illustrated the advantages of using the developed methodology. Besides, recommendations are proposed and further research are discussed.
УТОЧНЕНИЕ КЛАССИФИКАЦИИ ТЕХНИЧЕСКИХ КАНАЛОВ УТЕЧКИ ИНФОРМАЦИИ ПО ФИЗИЧЕСКОЙ ПРИРОДЕ НОСИТЕЛЯ С УЧЁТОМ ФИЗИЧЕСКИХ ЭФФЕКТОВ
Authors: Сидоркина И.Г. , Смирнов В.И.
Published: February 2025

В данной статье рассмотрены слабые стороны сложившихся классификаций технических каналов утечки информации по физической природе носителя. На основе знаний о физических эффектах и видах физических полей была предложена уточнённая классификация технических каналов утечки. Данная классификация позволяет устранить выявленные недостатки существующих классификаций и будет полезна при применении подхода с использованием физических эффектов к выявлению технических каналов утечки информации. Важен поиск закономерностей проявления физических эффектов в различных группах (классах) технических каналов утечки информации.

Introduction. Employment of technical facilities for processing, transmitting and storing data involves a crucial area of ensuring the security of information that is to prevent unauthorized reception of information through leakage channels. Currently, data security experts dont have a common classification of information leakage channels. The same channel may have different names in various sources. One of the groups of information leakage channels is the technical channels. The existing classifications of technical channels of information leakage according to the physical nature of the carrier have disadvantages. First of all, some classes of technical channels of information leakage are particular cases of the other classes. Secondly, the class of material channels is not always referred to as the technical one. Besides, there are situations when it is difficult to determine the type of technical channel of information leakage due to its mixed nature. Finally, there is no guarantees of the completeness of the existing classifications of technical channels of information leakage. The aim of the research is to improve the classification of technical channels of information leakage by the physical nature of the carrier taking into account physical effects. Findings. Based on the knowledge on physical effects and types of physical fields we proposed improved classification of technical channels of information leakage. It is proposed to group the technical channels of information leakage by the physical nature of the carrier as follows: acoustic/vibrational, electromagnetic (including optical one) and material. The type of channel is determined by the input (from the signal source) and output (to the information receiver) parameters in the physical circuit of the technical channel of information leakage. This classification allows to eliminate the revealed drawbacks of existing classifications and seems promising in applying the approach to the identification of technical channels of information leakage with the use of the physical effects. It is crucial to search for patterns of manifestation of physical effects in various groups (classes) of technical channels of information leakage.
СРАВНИТЕЛЬНЫЙ АНАЛИЗ ЭФФЕКТИВНОСТИ РАЗНЕСЁННОГО ПРИЁМА СИГНАЛОВ С КВАДРАТУРНОЙ АМПЛИТУДНОЙ И С ФАЗОВОЙ МОДУЛЯЦИЕЙ В КАНАЛЕ С ДИСКРЕТНОЙ МНОГОЛУЧЁВОСТЬЮ
Authors: Сидельников Г.М.
Published: February 2025

В основу анализа эффективности разнесённого приёма сигналов с квадратурной амплитудной модуляцией (КАМ) и сигналов с фазовой модуляцией (ФМ) в каналах с дискретной многолучёвостью положено сравнение изменения сигнальных расстояний из-за многолучёвости. Предложенный метод построен на основе аппарата векторной алгебры, что позволило учесть тонкую структуру многолучевого поля. Эффективность разнесённого приёма исследовалась методом компьютерного моделирования. Установлено, что для сигналов с КАМ-16 и ФМ-16 первоначальная разница в помехоустойчивости для однолучевого канала составляет 4,2 дБ в пользу КАМ-16, увеличивается для многолучевого канала до 10 дБ, а для системы с разнесением до 15 дБ.

Introduction. The urgency of the problem is manifested in the necessity in increasing efficiency of application of QAM-16 and PSK-16 signals for wireless radio communication systems with diversity reception by taking into account fine structure of multipath field. Selection of QAM and PSK signals for comparative analysis is associated with the fact that decision devices of demodulators differ in configuration of zones of decision on transmitted symbol under the influence of interferences. Analysis of the influence of the multipath field on the formation of these zones requires the acquisition of probabilistic characteristics of decision distances.
КОМПОЗИЦИОННЫЙ ЭЙЛЕРОВ СИГНАЛ С ХОРОШИМИ КОРРЕЛЯЦИОННЫМИ СВОЙСТВАМИ И НИЗКИМ ТРЕБУЕМЫМ ВЫЧИСЛИТЕЛЬНЫМ РЕСУРСОМ
Authors: Фурман Я.А. , Ямщиков А.О.
Published: February 2025

Получен новый класс сигналов, основанных на формуле Эйлера, связывающей между собой тригонометрические и показательные функции. Сигналы Эйлера образуются композицией элементарных векторных сигналов, обладающих свойством взаимной ортогональности. На их основе достаточно просто формируется сжатый сигнал в виде символа Кронекера (единичного импульса) с нулевыми боковыми лепестками. Новый сигнал эффективен для решения задач, связанных с повышением разрешающей способности радиолокационной станции по дальности.

Introduction. High range resolution is one of the urgent problems of modern radar. The existing approach to its solution is to synthetize sounding signals with delta-type autocorrelation function (ACF). Typically, the final circuit of the radar receiver computes the autocorrelation of the output signal. As a result, the echo signal from the most closely spaced targets on the display screen will be represented as separate in time pulses. This solution to the problem of increasing the radar range resolution is referred to as echo compression. The aim of the research is to expand the class of composite signals that allow to perform their effective compression. The proposed approach is to use sounding signals with a discrete envelope, which allows one to represent it in the form of a single pulse (Kronecker symbol). A compressed signal consists of a single thin lobe of one resolution element width without any sidelobes, and its energy is equal to the energy of the original signal. Signals with similar properties are relatively unknown. One of them is the signals in the form of a composition (sequence) of elementary Eulerian signals (EES). Conclusion. The paper discusses two types of signals, CES and ACS, that are obtained on the basis of the Euler’s formula and can be compressed over the range keeping the conveyed energy. The CES signal is synthesized by concatenation of a complete family of elementary Eulerian signals. This operation yields a discrete complex-valued signal of dimension with a strictly uniform energy spectrum. The ACS signal is computed by the bitwise sum of the complete family of its constituent elementary signals EES. It was shown that this sum defines the k-dimensional Kronecker symbol and can be considered as a compressed signal.
фотонное эхо как метод диагностирования возможностей ловушек экситонов и трионов в наноэлектронном приборостроении
Authors: Попов И.И. , Мороз А.В. , Гладышева А.А. , Леонтьев А.Ю. , Сушенцов Н.И.
Published: February 2025

Предлагается обзор экспериментальных исследований процессов, протекающих в ловушках экситонов и трионов, на основе регистрации характеристик фотонного эха, формируемого на дискретных уровнях квантово-размерных объектов, представленных наноразмерными ловушками экситонов и трионов. На основе регистрируемых характеристик фотонного эха предлагаются новые физические принципы построения наноэлектронных приборов. В том числе, при формировании фотонного эха под воздействием продольного однородного магнитного поля показана возможность определения наполняемости ловушек трионами, а также прямой регистрации фемтосекундных временных интервалов.

Paper presents a review of experimental studies into the creation of nano-sized traps of excitons and trions with the use of magnetron sputtering. Besides, the research focused on the processes occurring in the traps by the method of photon echo to reveal the properties that shape new physical principles of nanoelectronic devices. In these traps, with the use of photon echo, there were found the properties of quantum-size discretization of energy by spherical harmonics, which demonstrates a new kind of quantum dots. The aim of the research was to investigate the photon echo as a method for analyzing the capabilities of exciton and trion traps in the development of new physical principles for developing state-of-the-art nanoelectronic devices. Methods. The implemented physical principle of registration of time intervals is based on the conversion of the time interval between the exciting laser pulses into the value of the non-Faraday rotation of the polarization plane of the stimulated photon echo. The registered time interval is more than 2 orders of magnitude shorter than the time intervals registered according to other principles used by the laboratory of fast processes at the All-Russian Research Institute for Optical and Physical Measurements Federal State Unitary Enterprise (VNIIOFI), which develops and stores standards of optically measured quantities. Findings. We formulated and experimentally implemented the principles of creating nano-sized traps of exciton and trion states excited at a room temperature in a semiconductor film. Various physical states of these quasiparticles were registered, which are different in the spectrum of the generated photon echo and relaxation times measured by the optical echo spectroscopy. The measured relaxation times vary from hundreds of femtoseconds to 1 ps. There was also exhibited the physical principle of direct registration of femtosecond time intervals between laser pulses, exciting a stimulated photon echo at the quantized energy levels in the trap. In the trion traps of thin zinc oxide films, the interval reached 27 fs. It was shown that the polarity of the applied longitudinal uniform magnetic field affects the trion states shaped in the trap.
Формирователи псевдослучайных сигналов на основе системы Лоренца в средствах повышения эффективности функционирования систем передачи информации с OFDM
Authors: Буткевич Ю.Р. , Зуев М.Ю. , Логинов С.С. , Сивинцева О.А.
Published: February 2025

Представлены результаты моделирования системы передачи информации, использующей метод мультиплексирования с ортогональным частотным разделением каналов (OFDM) и скремблированием формируемых сигналов. Для скремблирования используется формирователь псевдослучайных сигналов, построенный на основе системы Лоренца, подверженной квазирезонансным воздействиям. Приведены результаты влияния глубины модуляции параметров временной сетки динамической системы Лоренца на статистические характеристики псевдослучайных сигналов. Рассмотрено влияние глубины модуляции параметров временной сетки дискретно-нелинейной системы Лоренца на параметры энергетической эффективности и защищённости информации систем связи с OFDM для различных значений интервала выборки двоичных символов при формировании псевдослучайных сигналов. Полученные результаты могут быть использованы при проектировании систем передачи информации с OFDM в части статистического моделирования и генерации псевдослучайных сигналов.

Introduction. Currently, issues of increasing energy efficiency and information security of small-sized information transmission devices, as well as issues of reducing energy consumption of such devices, are becoming increasingly topical. Digital methods of reducing energy consumption and increasing information security are of interest. The goal of this work is to determine the relationship between the statistical characteristics of pseudorandom sequences obtained on the basis of the Lorentz system, subject to quasi-resonant effects, with the energy efficiency and information security of communication systems with OFDM. The mathematical modeling outcomes. The analysis of statistical characteristics of pseudorandom signals formed on the basis of the dynamic Lorentz system under quasi-resonant influences was carried out. The characteristics of the energy efficiency and protection of the transmitted information for the communication system with OFDM were evaluated when scrambling the generated signals with pseudorandom signals formed on the basis of the dynamic Lorentz system. Conclusions. As a result of the work, the relationship between the statistical characteristics of the generated pseudo-random signals, the peak factor of the generated signals, the total entropy and local entropy is established.
2022 год – год фундаментальных наук и юбилейный год ИРЭФ–ЦТ и КНИТУ–КАИ
Authors: Морозов О.Г. , Морозов Г.А. , Иванов А.А. , Султанов А.Х. , Бурдин А.В. , Самигуллин Д.В. , Раевский А.С.
Published: February 2025

Освещены основные направления работы и подведены итоги IX-й международной научно-технической конференции молодых учёных, аспирантов и студентов «Прикладная электродинамика, фотоника и живые системы», проходившей в Казани на базе Казанского национального исследовательского технического университета им. А.Н. Туполева-КАИ с 28 по 30 апреля 2022 года.

There are highlighted the main directions of work and presented the results of the IXth International Scientific and Technical Conference of Young Scientists, Postgraduates and Students "Applied Electrodynamics, Photonics and Living Systems", held in Kazan on the basis of the Kazan National Research Technical University named after A.N. Tupolev-KAI from 28 to 30 April 2022.
ПОКАЗАТЕЛИ МАССЫ ПЛОДОВ БОЯРЫШНИКА И СОДЕРЖАНИЕ В НИХ ДУБИЛЬНЫХ ВЕЩЕСТВ В УСЛОВИЯХ РЕСПУБЛИКИ МАРИЙ ЭЛ
Authors: Мухаметова С.В. , Скочилова Е.А.
Published: February 2025

В 2016–2017 гг. изучены показатели массы плодов шести интродуцированных в Ре­спублику Марий Эл представителей рода Боярышник (Crataegus L.) и содержание в них дубильных веществ. Погодные условия 2017 года были неблагоприятными для формирования плодов боярышников – плоды образовались более мелкими. Наибольшая разница массы плодов 2017 года со средней многолетней отмечена у C. macracantha и C. submollis (в 1,6–1,7 раза). В засушливый и более тёплый 2016 год наибольшее количество дубильных веществ обнаружено в плодах C. volgensis, C. rhipidophylla, C. punctata, а в условиях избыточного увлажнения и коротком вегетационном периоде 2017 года – в плодах C. submollis и C. macracantha. В целом в условиях Республики Марий Эл наибольшим содержанием танинов характеризовались C. punctata и C. macracantha.

The research is aimed at making a comparative analysis the rate of fruiting and the content of tannins in the fruit of some species of hawthorns in Mari El Republic. The research was carried out in 2016 and 2017 years. The fruit of 6 hawthorns of Botanic Garden-Institute, Volga State University of Technology (Yoshkar-Ola, Mari El) were chosen to be the object of the research. Small-fruited species are C. volgensis Pojark., C. macracantha Lodd. ex Loudon, C. sanguinea Pall., and C. rhipidophylla Gand. Large-fruited species are C. submollis Sarg. and C. punctata Jacq. Methodology. The mass of fruit was calculated in 3 weighings with 100 fruit in each. The amount of tannins expressed as tannin was found using the titration method. Results. The authors determined that weather conditions-2017 had been unfavourable for hawthorn fruit forming – the fruits had been smaller than usual. In comparison with the average mass of fruit, C. macracantha and C. submollis showed the highest difference of mass of fruit in 2017 (in 1.6–1.7 times). According to the long-term average annual data, the larger the mass of fruit the higher the moisture content is. In dry 2016 year, C. volgensis, C. rhipidophylla, and C. Punctate fruit contained the largest amount of tannins, but in the conditions of excessive moistening and short vegetative period (2017 year) the largest amount of tannins was found in C. submollis and C. macracantha fruit. Conclusion. In general, C. punctata and C. Macracantha were found to contain the largest amount of tannins in Mari El Republic conditions. These species may be used in nontraditional fruit growing as well as in medical and food purposes.
Contribution des pratiques artistiques performatives au déploiement d'un espace d'apprentissage vivant (ré)conciliant savoir et être
Authors: Melis Caroline , Claverie Isabelle
Published: February 2025

Cet article se propose de tisser des liens entre théâtre et arts plastiques en s’appuyant sur leur caractère praxique. Nous abordons les questions épistémologiques liées à la disciplinarisation des arts plastiques au regard des enjeux de l’art tout en questionnant les modalités didactiques de cet enseignement en les reliant à la pratique théâtrale. Cette approche est accompagnée de l’analyse d’un projet arts de la scène où nous exposons comment les dialogues entre les deux domaines ont une incidence sur le corps de l’élève en action, en relation avec ses pairs mais aussi en relation avec l’espace comme lieu du faire.
PENGARUH GAYA KEPEMIMPINAN TERHADAP KINERJA PEGAWAI PADA SEKRETARIAT DAERAH KABUPATEN SEKADAU
Authors: B11211039 Yohanes Jhon
Published: February 2025

Penelitian ini bertujuan untuk mengetahui dan menganalisis (1) gaya kepemimpinan demokratis, gaya kepemimpinan otoriter, gaya kepemimpinan bebas dan kinerja, (2) pengaruh gaya kepemimpinan demokratis, gaya kepemimpinan otoriter, gaya kepemimpinan bebas baik secara parsial maupun simultan terhadap kinerja pegawai Sekretariat Daerah Kabupaten Sekadau.Populasi dalam penelitian ini adalah pegawai Sekretariat Daerah Kabupaten Sekadau dengan jumlah populasi 103 orang dan yang menjadi sampel 51 orang. Metode sebagai alat pengumpul data dalam penelitian ini adalah metode karyawan. Isi dari kuesioner tersebut terbagi menjadi empat variabel yaitu gaya kepemimpinan demokratis, gaya kepemimpinan otoriter, gaya kepemimpinan bebas dan kinerja. Teknik analisis data yang digunakan adalah model regresi. Instrumen yang di gunakan untuk pengumpulan data berbentuk angket model skala Likert yang sering digunakan untuk suatu pertanyaan dan responden diminta untuk menunjukkan tingkat kesepakatan mereka dalam mengisi kuesioner. Lima butir skala yang digunakan untuk mengukur kompensasi, kemampuan dan kompensasi kerja adalah Selalu, Sering, Kadang-kadang, Jarang dan Tidak Pernah. Hasil penelitian menunjukkan bahwa kontribusi variabel gaya kepemimpinan demokratis, gaya kepemimpinan otoriter, gaya kepemimpinan bebas dan kinerja pegawai pada Sekretariat Daerah Kabupaten Sekadau memperlihatkan hasil secara umum masuk dalam kriteria baik. Hasil pengujian model regresi menunjukkan bahwa pengaruh gaya kepemimpinan demokratis dan gaya kepemimpinan bebas terhadap kinerja tidak signifikan dan pengaruh gaya kepemimpinan otoriter terhadap kinerja tidak signifikan dan pengaruh gaya kepemimpinan otoriter terhadap kinerja memiliki pengaruh yang signifikan kepemimpinan otoriter dan gaya kepemimpinan bebas mempunyai pengaruh yang tidak signifikan terhadap kinerja pegawai Sekretariat Daerah Kabupaten Sekadau. Kata kunci : Gaya Kepemimpinan, Kinerja Pegawai, Sekretariat Daerah Kabupaten Sekadau
Natural Language Processing for Automated Workflow and Knowledge Graph Generation in Self-Driving Labs
Authors: Ruehle Bastian
Published: February 2025

Natural language processing with the help of large language models such as ChatGPT has become ubiquitous in many software applications and allows users to interact even with complex hardware or software in an intuitive way. The recent concepts of Self-Driving Labs and Material Acceleration Platforms stand to benefit greatly from making them more accessible to a broader scientific community through enhanced user-friendliness or even completely automated ways of generating experimental workflows that can be run on the complex hardware of the platform from user input or previously published procedures. Here, two new datasets with over 1.5 million experimental procedures and their (semi)automatic annotations as action graphs, i.e., structured output, were created and used for training two different transformer-based large language models. These models strike a balance between performance, generality, and fitness for purpose and can be hosted and run on standard consumer-grade hardware. Furthermore, the generation of node graphs from these action graphs as a user-friendly and intuitive way of visualizing and modifying synthesis workflows that can be run on the hardware of a Self-Driving Lab or Material Acceleration Platform is explored. Lastly, it is discussed how knowledge graphs - following an ontology imposed by the underlying node setup and software architecture - can be generated from the node graphs. All resources, including the datasets, the fully trained large language models, the node editor, and scripts for querying and visualizing the knowledge graphs are made publicly available.
A Parallel CUDA Implementation of the Gauss-Legendre-Spherical-t Method for Electrostatic Interactions
Authors: Gonzales James , Hwang Wonmuk , Brooks Bernard
Published: February 2025

Computing electrostatic interactions remains the bottleneck of molecular dynamics (MD) simulations despite more than a century of effort in developing methods to accelerate the calculation. Previously we have developed the Spherical Grid and Treecode (SGT) and Gauss-Legendre-Spherical-t (GLST) algorithms for electrostatic interactions. Here we explain the computational details and discuss the performance of GLST. The GLST algorithm achieves O(N) scaling and should be less demanding in parallel communication when compared with the widely used particle mesh Ewald (PME) method, and likely comparable to the communication costs of the fast multipole method (FMM). We find that GLST is suitable for rapid calculation of long-range electrostatic interactions in MD simulations as it has highly tunable accuracy and should scale well on massively parallel computing architectures. The GLST software presented here is available as a standalone library on GitHub.
Tailoring Phosphorene Quantum Dot via Electrochemical Methods for Enhanced Capacity Na-ion Batteries
Authors: Isaac Bikash Ranjan , Satish Sankeerth , Sreedeep S. , Mohapatra Sangram , Alwarappan Subbiah , Pillai Vijayamohanan K.
Published: February 2025

The development of advanced energy storage technologies has driven significant interest in two-dimensional (2D) materials, particularly graphene, stanene, phosphorene and their analogues, due to their unique structural and electronic properties, as well as their propensity for doping. In this work, we demonstrate an electrochemical approach for tailoring phosphorene quantum dots (PQDs) specifically optimized for sodium-ion battery (SIB) applications using benchmark cathodes and electrolytes. Sodium-ion batteries, as a promising alternative to lithium-ion systems, benefit from the tunable surface area and conductivity provided by size-optimized PQDs, which enhance ion diffusion kinetics and charge storage capabilities. The size-tuning of PQDs is achieved through a controlled electrochemical exfoliation and passivation process, resulting in quantum dots with improved stability and a higher specific capacity. For example, the PQDs coupled with Prussian white analogue (PW) exhibit superior key performance metrics, showing a high discharge capacity of 250 mAg-1 and capacity retention of 77% after 250 cycles, positioning them as a viable candidate for next-generation SIBs. This study presents a pathway for scalable production in SIBs using phosphorene-based materials, laying the groundwork for high-efficiency, sustainable energy storage solutions.
Carbene-Supported Triphosphorus Anion
Authors: Mei Yanbo , He Xue-Yi , Li Jiancheng , Liu Mo , Liang Qiuming , Yang Chengbo , Liu Liu Leo
Published: February 2025

The stabilization of reactive anionic main group species utilizing carbenes constitutes a burgeoning and scarcely explored field. Herein, we report the synthesis of an anionic triphosphorus [P3]ˉ unit, supported by two cyclic (alkyl)(amino)carbenes (CAACs) in the form of potassium salts. This anion features a planar W-shaped conjugated C-P-P-P-C framework, characterized by 5-center-6-electron π delocalization and an additional σ lone pair located on each of the three phosphorus atoms. Remarkably, this anion is not only strongly basic and nucleophilic but also reductive, positioning versatile functionalization of the [P3] unit. This approach has advanced the isolation of unique carbene-supported cores, including [HP3], [P3N3R]ˉ, [P3O]ˉ and [P6], thus expanding the frontiers of phosphorus chemistry. Moreover, the addition of the two phosphorus fragments upon P-P bond cleavage of the [P3] unit to the triple bond of diphenylacetylene for the synthesis of an extended conjugated system was described.
Linker-Dependent Gas Adsorption of Network Polymers Using Aminated Trinaphtho[3.3.3]propellane
Authors: Kato Kenichi , Okada Seina , Mizuno Motohiro , Seto Nobuyoshi , Iwano Ryo , Ohtani Shunsuke , Ogoshi Tomoki
Published: February 2025

Designed molecular-sized cavities is key to efficient transport, storage, and separation of small molecules. Herein, we report that the adsorption properties of void-containing polymers were altered by changing linker units for condensation with hexa-aminated trinaphtho[3.3.3]propellane as the partner. Aldehyde linkers resulted in formation of N=C–NH perimidine-like segments in polymer structures and showed higher selectivity for alkanes over carbon dioxide than network polymers with NH–B– NH moieties derived from boronic esters. Use of 1,3,5-trifunctionalized linkers, which are expected to give smaller cavities, led to a network polymer containing NH–B–NH moieties exhibiting size exclusion of n-butane, while fairly retaining adsorption capacity for ethane and carbon dioxide.
Electron Sextets as Optically Addressable Molecular Qubits: Triplet Carbenes
Authors: Poh Yong Rui , Chen Xiao , Cheng Hai-Ping , Yuen-Zhou Joel
Published: February 2025

There is a growing demand in quantum information science and sensing for electron spin purification and readout via a spin-optical interface. This technique, known as optically detected magnetic resonance (ODMR), has been applied on diamond-NV centres and transition metal complexes. Metal-free counterparts of these optically addressable spin qubits promise to be cheaper, more sustainable colour centres with prolonged polarisation lifetimes. However, progress has been hindered by the low ODMR signals of carbon-based π-diradicals, partly due to the lack of a ground singlet-to-triplet intersystem crossing (ISC). In this work, we propose to explore organic systems that are even more electron-deficient: electron sextets. Using triplet carbenes as an example, we illustrate how the ground singlet-triplet gap can be widened beyond thermal energy with the associated singlet-to-triplet ISC made available by vibronic effects. Through careful molecular engineering, this ISC can occur at a rate similar to and with an opposite spin selectivity from the excited-state ISC well-established in π-diradicals, unlocking a new ODMR pathway with potential signal gains. Persistent triplet carbenes is a renascent field with multiple stable molecules being isolated in the past five years. To motivate further development of its emissive properties, we illustrate our design in two realistic carbene candidates that incorporate existing strategies for carbene stabilisation. Ultimately, we believe that a new realm of quantum materials can be uncovered by expanding our scope towards stable electron sextets.
Improving Pitting Corrosion Prediction Accuracy in 316L Stainless Steel through the Synergy of Predictive Machine Learning and Reflective Microscopy
Authors: Makogon Aleksei , Bertolucci Coelho Leonardo , Ustarroz Jon , Kanoufi Frédéric , SHKIRSKIY Slava
Published: February 2025

Accurately forecasting the locations of future pit formation sites on stainless steels (SS) holds significant practical value in both fundamental science and the corrosion industry, yet it poses a significant experimental challenge due to the need to localize imperfections in the passive film at a sub-nanometer scale. In this study, we tackle this issue by utilizing the combination of in-situ Reflective Microscopy (RM) instrumentation, optical modeling, and predictive machine learning (ML) methods, focusing on the prediction of pits location in SS316L alloy in chloride-rich media. Our findings indicate that the appearance of future pits is most often linked to slight ( 0.5%) decrease in the intensity of light reflected from the SS surface, yet this relationship is not always reciprocal. Optical modeling reinforced with ex-situ XPS suggest a chromium oxide deficiency in the surface films over these zones. This study provides proof of concept that RM enforced with ML approaches can be used as an accessible, highly precise tool to define zones of preferential pitting corrosion and highlights future promising directions for developing predictive corrosion monitoring systems.
ĐẶC TÍNH SINH HÓA VÀ TÍNH SINH MIỄN DỊCH CỦA CHỦNG VI KHUẨN ERYSIPELOTHRIX RHUSIOPATHIAE PHÂN LẬP TẠI TỈNH KHÁNH HÒA
Authors: Dương Vũ Khắc Minh , Hằng Trịnh Thị Thu , Hiếu Phạm Trung , Tấn Đỗ Văn , Hùng Vũ Khắc
Published: February 2025

Trong nghiên cứu này, chúng tôi kiểm tra một số đặc tính sinh học và miễn dịch của chủng E. rhusiopathiae IVER1 phân lập tại Khánh Hòa năm 2017. Kết quả cho thấy chủng này có hình thái khuẩn lạc và đặc tính sinh hóa tương đồng với các mô tả về E. rhusiopathiae tại Việt Nam và trên thế giới. Kết quả phân tích trình tự 16S rRNA cho thấy chủng IVER1 tương đồng 100% với chủng E. rhusiopathiae ZZ12.3 phân lập tại Trung Quốc năm 2012 (mã số trên ngân hàng gen NCBI: KC660995.1). Kết quả kiểm tra độc lực trên lợn cho thấy, chủng IVER1 có tính độc tương đương với chủng giống quốc gia E.47. Tính sinh miễn dịch của chủng IVER1 đáp ứng các yêu cầu về chỉ tiêu miễn dịch để sử dụng cho phát triển vắc-xin vô hoạt phòng bệnh đóng dấu lợn. Các nghiên cứu tiếp theo sử dụng chủng IVER1 để sản xuất vắc xin phòng bệnh đóng dấu lợn là việc làm cần thiết, góp phần tăng hiệu quả phòng bệnh đối với các chủng vi khuẩn E. rhusiopathiae đang lưu hành.
NGHIÊN CỨU CẢI THIỆN HỆ SỐ NHÂN GIỐNG IN VITRO CÂY TRÀM NĂM GÂN (Melaleuca quinquenervia)
Authors: Mẫn Nguyễn Thị Nguyên , Thi Phạm Thị Diễm , Quỳnh Nguyễn Thị Khánh , Vi Tạ Đặng Ý , Chung Nguyễn Đức , Quảng Hoàng Tấn
Published: February 2025

Tràm năm gân (Melaleuca quinquenervia (Cav) S.T. Blake, 1958) là loài nhập nội được trồng phổ biến ở nước ta với mục đích lấy gỗ và chiết xuất tinh dầu. Sản xuất cây giống Tràm năm gân bằng phương pháp nuôi cấy mô sẽ giúp giữ được các đặc tính tốt như sinh trưởng mạnh, hàm lượng tinh dầu cao từ các giống đã được tuyển chọn. Mẫu đoạn thân Tràm năm gân thu nhận từ tự nhiên được rửa sạch và khử trùng với HgCl2 0,1% trong 16 phút. Sau 3 tuần nuôi cấy, tỷ lệ mẫu sống và không nhiễm là 83,33%. Môi trường MS bổ sung 30 g/L sucrose, 8,0 g/L agar, 1,5 mg/L BAP là môi trường thích hợp nhất để nuôi cấy mẫu đoạn thân Tràm năm gân với số chồi tái sinh là 2,13 chồi/mẫu, chiều cao chồi 1,49 cm. Môi trường tối ưu cho nhân nhanh chồi là môi trường MS bổ sung 2,5 mg/L BAP + 1,0 mg/L KIN + 0,5 mg/L NAA + 0,2 mg/L GA3 + 0,2 mg/L B2 với số chồi là 15,93 chồi/mẫu, chiều cao trung bình của cụm chồi là 2,53 cm. Rễ hình thành và phát triển tốt nhất trên môi trường ½ MS bổ sung 1,5 mg/L IBA với số rễ /chồi là 3,03 rễ và chiều dài rễ là 3,47 cm.
ASSESSMENT ON SOME OF SANDY SOIL PROPERTIES IN PHU VANG DISTRICT, THUA THIEN HUE PROVINCE
Authors: Tung Pham Gia , Linh Nguyen Hoang Khanh , Hang Nguyen Thu , Tan Nguyen Quang , Chau Tran Thi Minh , Hai Nguyen Trung
Published: February 2025

This study was conducted in Phu Da town and Vinh Xuan commune, Phu Vang district, Thua Thien Hue province, with the aim of evaluating and mapping soil properties, including pHKCl, total nitrogen, electrical conductivity, total phosphorus, total potassium, and soil organic carbon. The results showed that most soil properties in the study area were low; the soil was poor in organic carbon and acidic, with a notable decrease in organic carbon content compared to previous studies (0.69% compared to 0.86%). Three out of six soil quality indicators—soil acidity, total nitrogen, and total phosphorus—showed statistically significant differences between land use types. This difference was observed between the two-season rice land use type and all other land use types. This study employs the Ordinary Kriging interpolation method for soil quality indicators mapping. However, the results indicate that the map's accuracy is relatively low. This finding suggests that conventional interpolation methods, which rely on distance and sample residuals, may not be appropriate for soil quality indicators mapping. Consequently, there is a need to explore and apply alternative methods to enhance mapping accuracy.
INVESTIGATING THE EVOLUTION OF SMART TOURISM TECHNOLOGY AND TOURISM DESTINATION IMAGE: A BIBLIOMETRIC ANALYSIS
Authors: Tung Duong Thanh , Ngoc Nguyen Thi Bich , Nga Dang Thi
Published: February 2025

This study investigates the development of smart tourism technology (STT) and tourism destination image (TDI), identifying trends and research gaps in relation to STT and TDI. The article employs a rigorous PRISMA Statement methodology to curate a dataset of 4,371 of the most reliable articles from two databases: Scopus and Web of Science, spanning from 1986 to 2024. This paper employs mixed methods, primarily quantitative bibliometric methods utilizing the Biblioshiny tool. Findings reveal that the annual scientific output on STT and TDI peaked at 666 articles in 2023, with a projected upward trend. The integration of emerging technologies such as metaverse, gamification, digital twin, smart media, augmented reality, and virtual reality with TDI gives rise to exciting research gaps. This study is unique and valuable since it divided the time period into four different slices, from 1986 to 2024, and used the Biblioshiny to create a longitudinal thematic analysis map. This research presents emerging topics, targeting key trends in STT and TDI.