bluuebunny/crossref_metadata_2025 huggingface dataset:
Factors influencing women farmers’ participation in agricultural cooperatives in Ondo-State, Nigeria
Authors: Oluwatoyin Kayode Ajoke , Adebukola Adebayo Sijuwade , Oluwasikemi Awoyemi Adeseye , Orimoloye Mayowa
Published: July 2024

Cooperative societies provide channels for sharing of input where women farmers can pool their limited resources together to maximize agricultural output and food security in rural areas. This study, therefore, analyzed factors influencing women farmers participation in agricultural cooperatives in Ondo State, Nigeria. The specific objectives of the research were to describe socio-economic characteristics of women farmer’s participation in agricultural cooperative societies, determine the level of participation of women farmers in agricultural cooperatives and examine factors that motivate participation. Data were analyzed using descriptive statistics, Likert type scale, and Pearson Product Moment Correlation analysis. The results revealed that women farmers in the study area were average aged (42.9 years) and mostly possessed tertiary education (38.3%), mean annual income (₦777,846) with farm size (0.8 hectares). The level of participation in agricultural cooperative is high (60.4%). Accessibility to loan (M. S= 3.50), getting information (M. S= 3.42) and input facility (M. S= 3.40) were top most factors that influenced participation in cooperatives among the women. At P< 0.05, Age, marital status and income realized per annum were positively significant to the level of participation in cooperatives. The study recommends the timely provision of loan to enable women farmers expand the scope of their farming activities, increased access to training programs for women farmer leaders in cooperatives as well as extension education should also be intensified.
Expert assessment of the accuracy of determining the intensity of vibrational-rotational lines of water vapor in the HITRAN database in the range 2500–6500 cm-1
Authors: ВАСИЛЕНКО И.А. , НАУМЕНКО О.В.
Published: July 2024

Проведена экспертная оценка погрешностей для интенсивностей колебательно-вращательных переходов водяного пара в базе данных HITRAN2020 в спектральном диапазоне 2500–6500 см-1. Из сравнения с экспериментальными данными (Loos J., Birk M., Wagner G. Measurement of positions, intensities and self-broadening line shape parameters of H2O lines in the spectral ranges 1850–2280 cm-1 and 2390–4000 cm-1 // J. Quant. Spectrosc. Radiat. Transfer. 2017. V. 203. P. 119–132) определены нормировочные коэффициенты вариационного расчета. Для полос поглощения (001)–(000), (020)–(000), (011)–(000) и (110)–(000) они составили 1,010; 1,007; 1,015 и 1,030 соответственно. С использованием вариационных расчетов и моделирования по методу эффективного гамильтониана проведена экспертиза экспериментальных данных из базы данных HITRAN2020, выявлены менее точные значения. На основе полученных результатов построен откорректированный список линий поглощения H216O в области 2500–6500 см-1, который может быть полезен при проведении натурных экспериментов.

An expert assessment of the accuracy codes for the intensities of rovibrational transitions of water vapor in the spectral range 2500–6500 cm-1 of the HITRAN2020 database has been carried out. From comparison with experimental data, the normalization coefficients of the variational calculation by Conway E.K., Gordon I.E., Kyuberis A.A., Polyansky O.L., Tennyson J., Zobov N.F. // J. Quant. Spectrosc. Radiat. Transfer. 2020. V. 241. P. 106711 were determined; for the absorption bands (001)–(000), (020)–(000), (011)–(000), and (110)–(000), they were 1.010, 1.007, 1.013, and 1.030, respectively. Using variational calculations and modeling based on the effective Hamiltonian approach, the analysis of experimental data from the HITRAN2020 database has been conducted, revealing less accurate values. Based on these results, an adjusted list of H216O absorption lines in the range 2500–6500 cm-1 has been constructed, which can be useful for natural experiments.
Surface turbulence in the Sayan Solar Observatory in summer 2023
Authors: НОСОВ В.В. , ЛУКИН В.П. , НОСОВ Е.В. , ТОРГАЕВ А.В.
Published: July 2024

Для оценки влияния атмосферной турбулентности на качество получаемых астрономических изображений требуются соответствующие исследования на территориях обсерваторий. Приведены результаты измерений характеристик турбулентности в Саянской солнечной обсерватории (ССО) летом 2023 г. Установлено, что причиной появления преобладающего направления возникающих на территории ССО местных ветров является температурный горно-долинный градиент между горами Саяны севернее обсерватории ССО и долиной южнее. Показано, что в ССО сохраняется меньший уровень средней интенсивности атмосферной турбулентности по сравнению с турбулентностью над ровной местностью в средних широтах. Подтверждено наличие на территории ССО когерентной турбулентности, в условиях которой улучшается качество получаемых оптическими приборами изображений. Получены новые данные для используемых в теории подобия Монина–Обухова турбулентных масштабов температуры и скорости ветра в зависимости от стратификации атмосферы. Результаты будут полезны специалистам по астроклимату и теории атмосферной турбулентности.

The results of long-term measurements of the atmospheric turbulence characteristics in the Sayan Solar Observatory (SSO) in summer 2023 are presented. It is confirmed that the cause of the prevailing direction of local winds appearing in SSO is temperature mountain-valley gradient between the Sayan Mountains north of the SSO observatory and the valley to the south. A smaller level of the mean intensity of atmospheric turbulence in SSO compared to the turbulence over flat terrain in middle latitudes is confirmed. The presence of coherent turbulence in the SSO area is shown, at which the quality of images obtained by optical instruments is improved. New data are obtained for the turbulent scales of temperature and wind speed depending on the atmospheric stratification.
Effect of fine aerosols in urban air on the frequency of hospitalizations for respiratory diseases
Authors: ДУДОРОВА Н.В. , БЕЛАН Б.Д.
Published: July 2024

Исследуется влияние мелкодисперсных частиц в городской атмосфере на частоту госпитализаций граждан с заболеваниями органов дыхания. Для анализа использовались данные TOR-станции о содержании мелкодисперсных частиц в атмосфере г. Томска диаметром менее 2,5 мкм, данные из реестра вызовов скорой медицинской помощи за 2010–2022 гг. о количестве госпитализаций в Томске по причинам заболеваний органов дыхания, а также коронавирусной инфекцией (коды МКБ-10 J00-J99, U07.1, U07.2). Показано, что при отсутствии в воздухе инфекционных агентов, вызывающих повышенное количество госпитализаций по причинам болезней органов дыхания, уровень загрязнения мелкодисперсным аэрозолем в Томске, а также продолжительность загрязненных периодов практически не увеличивают количество госпитализаций. Однако при наличии инфекционных агентов в воздухе (включая SARS-CoV-2) мелкодисперсный аэрозоль способствует более быстрому их переносу. В такие эпизоды, даже в условиях достаточно чистого воздуха города, такого как Томск, сравнительно небольшие концентрации PM2,5 (30–50 мкг/м3) способны увеличить число госпитализаций по указанным выше причинам, включая коронавирусную инфекцию, в несколько раз без учета увеличения количества госпитализаций за счет сезонной заболеваемости или эпидемии.

The impact of PM2.5 in urban air on the frequency of hospitalizations for respiratory diseases is studied based on data on the atmospheric PM2.5 concentration from the TOR station (Tomsk) and on the number of hospitalizations of Tomsk residents for respiratory diseases and coronavirus infection (ICD-10 codes J00-J99, U07.1, and U07.2) from the register of emergency calls over a twelve-year period (2010–2022). It is shown that the level of air pollution with PM2.5 and the duration of pollution episodes almost do not affect the number of hospitalizations for respiratory diseases in the absence of infectious agents, which increase the number of such hospitalizations. However, in the cases where infectious agents, including SARS-CoV-2, are present in urban air, which promotes an increase in the number of hospitalizations for respiratory diseases, fine aerosols as carriers of the infectious agents contribute to their faster transfer and infection of more city residents compared to the cases of clean air. During such episodes, relatively low PM2.5 concentrations (30–50 μg/m3) can several times increase the number of hospitalizations for respiratory diseases, including coronavirus infection, even in such a fairly clean city as Tomsk, ignoring the rise of the number of hospitalizations due to seasonal morbidity or epidemic.
Decomposition of the latitudinal variation in the long-term average temperature using data from weather stations in the Northern Hemisphere and on astronomical insolation in 1897–2010
Authors: ТАРТАКОВСКИЙ В.А. , МАКСИМОВ В.Г. , КРУТИКОВ В.А.
Published: July 2024

В связи с актуальностью исследований стабильности климата результаты измерения температуры на метеорологических станциях Северного полушария и данные астрономической инсоляции упорядочиваются по возрастанию широты и подвергаются совместному анализу для различных выборок в интервале 1897–2010 гг. Подобные исследования развиваются в связи с расширением сети метеостанций и накоплением новых данных. С помощью пошаговой регрессии широтного хода средней многолетней температуры к полиному от астрономической инсоляции выделяются детерминируемый Солнцем широтный тренд температуры и флуктуирующие остатки регрессии, в которых проявляются индивидуальные особенности данных. Отсутствие взаимодействия этих составляющих достигается численно для любых выборок. Установлено, что в Северном полушарии для имеющихся выборок широтный тренд средней многолетней температуры полностью определяет потепление и вносит ~ 82% в общую дисперсию температуры. Границы областей, где температуры выше и ниже широтного тренда средней многолетней температуры, выделяют известные географические структуры и тем самым верифицируют тренд.

Temperature data at weather stations in the Northern Hemisphere and astronomical insolation data are ordered by increasing latitude and analyzed together for different samples between 1897 and 2010. By step-by-step regression of the latitudinal variation in the long-term average temperature to a polynomial of astronomical insolation, a latitudinal temperature trend determined by the Sun and fluctuating regression residuals, in which individual features of data appear, are identified. The absence of interaction of these components is numerically achieved for any samples. It has been established that in the Northern Hemisphere for the available samples, the latitudinal trend in the long-term average temperature completely determines the warming and contributes about 82% to the total temperature dispersion. The boundaries of areas where temperatures are above and below the latitudinal trend in the long-term average temperatures reveal known geographic structures, thereby verifying the trend.
Production of polysaccharides from Angelica sinensis by microbial fermentation
Authors: Diao Huan , He Heng , Hua Fang , Wang Zhang Jie , Liu ZiPing , Tang Qiang
Published: July 2024

Angelica sinensis polysaccharides are important active ingredients and biological resources in traditional Chinese medicine. Properly changing the fermentation conditions of microorganisms may alter the yield of fermentation products. Based on single factor test results, three factors with great influence on the yield of Angelica sinensis polysaccharides produced by Aspergillus niger were optimized: initial pH value, fermentation time, and culture temperature. According to the box Behnken central combination principle, a response surface analysis scheme with three factors and three levels was designed, and the yields of active polysaccharide of Angelica sinensis were taken as the response value to optimize the fermentation process. The results of response surface analysis showed that under the optimized fermentation temperature of 30 °C, cultivation time of 8 days, and initial pH value of 5, the predicted yield of active polysaccharides from Angelica sinensis was 15.5%, while the actual value was 15.35%, which was 0.11% lower than the predicted value. This indicated that using response surface analysis to optimize the fermentation conditions of Angelica sinensis polysaccharides was reasonable and feasible. This method can effectively improve the biological resource utilization rate of Angelica sinensis polysaccharides.
Enhancing subsequent kraft fiber dewatering properties by using fiber polyamide-epichlorohydrin (PAE) treatment to prepare a dry pulp product,
Authors: Korpela Antti , Tanaka Atsushi , Asikainen Jaakko
Published: July 2024

The energy needed for the dewatering and drying of wet paper web represents around half of the energy consumption of papermaking processes. The present work examined whether the dewatering and drying of paper could be enhanced during a previous pulp drying process by pretreating the fibers with polyamide-epichlorohydrin (PAE). According to the hypothesis, the cured PAE restrains swelling and water absorption of water-wetted fibers by forming a fiber-bound, self-crosslinked polymer-network on the fiber surfaces. The hypothesis was tested by adding PAE to never-dried kraft pulp slurry followed by pulp thickening, drying, and final curing of the PAE-resin. After this, the PAE-treated fibers were dispersed in water, and their water retention values (WRV) and Shopper-Riegler values (○SR) were measured. The PAE pretreatments notably decreased the fibers´ WRV and ○SR, indicating improved water removal of paper web in the paper machine forming and drying section. Compared to chemical crosslinking pretreatments, which also can be used to decrease fibers WRV and ○SR-value, a notable advantage of PAE-pretreatment is milder required curing conditions of the PAE, which makes implementation of the method easier in practice. Due to decreased fiber-to-fiber bonding capability, the PAE-treated specialty fibers could take advantage especially as a bulking aid of paperboard, tissue, and absorbent materials.
Skin protective effects of acid-stress sorghum fermentation by extremophile Monascus pilosus against UV-induced inflammation and photoaging
Authors: Zheng Yuxi , Luo Han , Ding Nianhui , Huang Yan , Wang Kai , Li Chun , Zhang Chaolong , Feng Jianguo
Published: July 2024

Ultraviolet (UV) radiation causes skin damage including oxidative stress, inflammation, and photoaging. Extremophile fermentation products have been found to effectively protect the skin from UV-induced damage. This study aimed to investigate the impact of acid-induced stress on the content of bioactive compounds, as well as the anti-inflammatory and anti-photoaging properties of sorghum fermentation by the extremophilic Monascus pilosus. The study compared acid-stress fermentation (ASF) of sorghum with conventional fermentation (CF) and examined differences in total phenolic content, antioxidant activity, and short-chain fatty acid levels. Using gas chromatography–mass spectrometry assay, the ASF sample had lower total phenolic content compared to CF, but significantly higher levels of short-chain fatty acids. Butyric acid was the predominant metabolite in the ASF sample, followed by propionic acid. The ASF sample exhibited superior protection for UV-irradiated human keratinocytes by inhibiting apoptosis, reducing ROS, and downregulating inflammatory mediators. It also decreased metalloproteinases expression levels, increased collagen and elastin production, and mitigated UV-induced photoaging. The effects of ASF samples were evaluated in volunteers, and the results confirmed the ASF sample’s effectiveness in ameliorating UV-induced skin symptoms, including pigmentation, redness, and wrinkles. These findings conclude that acid-stress enhances the anti-inflammatory and anti-photoaging capabilities of Monascus pilosus fermented sorghum.
Mechanical and degradation properties of degradable cover materials for sugarcane leaves
Authors: Jiao Jing , Li Puwang , Huang Xiaohong , Du Jihua , Li Zunxiang , Liu Xinpeng , Song Shuhui , Zhou Yirong
Published: July 2024

Mulch was prepared using composted sugarcane leaves, with polyvinyl alcohol and cationic starch as adhesives, through compression molding. The study aimed to investigate the effects of different adhesives on the mechanical properties, thermal oxidative degradation performance, and biodegradability of the covering materials. The results indicated that, when the adhesive dosage was consistent, cover material A, which utilized polyvinyl alcohol as the adhesive, exhibited higher tensile strength and elongation at break compared to cover material B, which employed a blend of polyvinyl alcohol and cationic starch. Specifically, at an adhesive dosage of 20%, cover material A achieved a tensile strength of 0.46 MPa and an elongation at break of 7.72%, representing the highest values among all experimental groups. There was minimal disparity in the thermal oxidative degradation performance between materials prepared with either adhesive; however, a higher quantity of adhesive led to decreased biodegradability performance. After being buried in soil for 120 days, the degradation exceeded 40% for both materials, resulting in loss of their original shape and strength properties. In conclusion, while sugarcane leaves-based biodegradable materials demonstrate favorable degradation performance, further enhancements are necessary to improve their mechanical properties. These materials have potential applications as substitutes for plastic mulch.
The Asymmetric Effects of Global Energy and Food Prices, Exchange Rate Dynamics, and Monetary Policy Conduct on Inflation in Indonesia
Authors: Arintoko Arintoko , Badriah Lilis Siti , Kadarwati Nunik
Published: July 2024

This research analyzes the asymmetric effects of global energy and food prices and monetary variables, including the exchange rate and money supply, on the consumer price index (CPI). The model is intended to differentiate the influence of increases and decreases in global energy and food prices, exchange rates, and money supply which cause inflation/deflation from changes in the CPI. The analysis uses the Nonlinear Autoregressive Distributed Lag (NARDL) and Quantile Regression models on data from January 2001 to February 2023. The study results show that the decline in global energy prices significantly reduces the CPI in the long run. Energy subsidies allow increases in international energy prices not to increase the CPI significantly. Meanwhile, the increase in global food prices causes inflation in the short run. The exchange rate has the most significant effect on the CPI. Depreciation of the rupiah significantly increases the CPI, which means it causes inflation, while appreciation of the rupiah does not have a significant effect. Finally, increases and decreases in the money supply have a considerable positive effect on the CPI, which confirms the logic of the monetarist view that inflation is a monetary phenomenon. Efforts to reduce dependence on imports of food and energy commodities are the key to reducing risks when importing energy and food due to rupiah depreciation. Efforts to consistently stabilize the exchange rate can support controlling and stabilizing import prices. Energy and food subsidy policies are vital in controlling inflation due to increased world energy and food prices.
Introduction to the Special Issue on Expressions of Information and Communication Theory and Practice
Authors: Fomin Vladislav , Grigas Vincas
Published: July 2024

This paper provides an introduction to the special issue on expressions of information and communication theory and practice. It surveys each paper, identifies commonalities and dissimilarities among them, and suggests the potential readership for the papers based on the problems addressed and the findings.
ІНСТИТУЦІЙНІ МОДЕЛІ НАГЛЯДУ НАД ДІЯЛЬНІСТЮ ЦЕНТРАЛЬНОГО БАНКУ
Authors: ЩЕРБАКОВА Олена
Published: July 2024

Підзвітність центрального банку та його монетарної політики перед суспільством належить до ключових принципів його сучасної діяльності – поряд з мандатом центрального банку (цілями і функціями), його незалежністю й системою ухвалення рішень. На основі аналізу теоретичних джерел і світового досвіду встановлено, що підзвітність центрального банку може реалізовуватися на трьох рівнях: внутрішній контроль, підзвітність перед наглядовими органами, підзвітність перед парламентом чи президентом. Визначено, що проблематика наукових досліджень щодо підзвітності центральних банків зосереджена навколо питань розвитку інституційних форм підзвітності; узгодження підзвітності, транспарентності й незалежності центральних банків; удосконалення корпоративного управління в центральних банках і розвитку нормативно-правової бази функціонування наглядових рад. Основну увагу зосереджено на ролі наглядових рад у забезпеченні належної підзвітності центрального банку. Встановлено типові форми взаємодії наглядових рад з виконавчим менеджментом центрального банку, які включають: модель єдиної ради, модель двох рад, модель спеціалізованого комітету, модель надцентралізованого управління. Виявлено ключові недоліки і переваги цих типових форм. Сформульовано основоположні законодавчі принципи функціонування наглядових рад, які включають конкретизацію їх наглядових зобов’язань, формування вичерпного переліку їх підконтрольних функцій, наявність чітких процедур звітування виконавчого менеджменту перед ними. Обґрунтовано, що важливою складовою ефективного функціонування наглядових рад є їх здатність проводити неупереджене оцінювання виконавчого менеджменту центрального банку, для чого доцільно підкріплювати їх функціонал незалежними аналітичними підрозділами.
Ідентифіковано проблемні питання національної системи підзвітності центрального банку, сформульовано пропозиції щодо її удосконалення, які полягають у чіткому розподілі повноважень між наглядовою радою і виконавчим менеджментом (зокрема, щодо розробки стратегічних документів), регламентації процесу звітування виконавчого менеджменту банку з реалізації своїх повноважень (зокрема, щодо дотримання принципів монетарної політики), створенні незалежного аналітичного підрозділу при наглядовій раді.
УПРАВЛІННЯ БЮДЖЕТНИМИ ОПЕРАЦІЯМИ В УМОВАХ ВІЙНИ
Authors: КУДРЯШОВ Василь
Published: July 2024

Управління операціями державного бюджету України в умовах війни потребує значного збільшення обсягів видатків, змін їх структури і показників бюджетного дефіциту, забезпечення витрат мобілізованими доходами, а також перегляду підходів до проведення операцій фінансування державного бюджету.
Стандартна модель управління бюджетними операціями не забезпечила вирішення обумовлених війною завдань. Отже, постала необхідність внесення кардинальних змін в управління видатками, доходами і фінансуванням державного бюджету, з урахуванням нових викликів. Такі перетворення не були передбачені нормативними документами і визначені науковими дослідженнями. З огляду на це, актуальності набуло дослідження особливостей управління бюджетними операціями в Україні в умовах війни, що дозволило запропонувати механізми їх покращення. Для цього було проведено аналіз управління бюджетними операціями в умовах війни, визначено проблеми, що потребують вирішення протягом наступних періодів, надано рекомендації щодо покращення управління бюджетними операціями в період подолання наслідків війни в Україні.
В умовах війни в управлінні бюджетними операціями були запроваджені нетрадиційні механізми щодо бюджетних видатків, мобілізації доходів, показників  бюджетного дефіциту, а також фінансування державного бюджету. Внесено зміни до розміщення внутрішніх позик, джерел їх фінансування, збільшення зовнішніх запозичень.  Покращення процесу управління бюджетними операціями передбачає обмеження механізмів залучення надзвичайних доходів до бюджету, збільшення податкових надходжень, неборгового ресурсу (в рамках фінансування державного бюджету), розміщення запозичень на внутрішньому ринку, обмеження монетарного фінансування дефіциту, заміщення пільгового фінансування ринковими запозиченнями, забезпечення додаткових механізмів підтримки боргової стійкості.
Electronic and magnetic properties of Zn1−xMnxSe:Fe2+,Cr2+ (x = 0.3) single crystals
Authors: Savchenko D.V. ,   National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” 37, Beresteiskyi Avenue, 03056 Kyiv, Ukraine, Ivanchenko I.V. , Popenko N.A. , Bekirov B.E. , Kalabukhova E.N. ,   Technical Center NAS of Ukraine, 13, Pokrovs’ka str., 04070 Kyiv, Ukraine,   O. Usikov Institute for Radiophysics and Electronics, NAS of Ukraine, 12, Proskura str., 61085 Kharkiv, Ukraine,   O. Usikov Institute for Radiophysics and Electronics, NAS of Ukraine, 12, Proskura str., 61085 Kharkiv, Ukraine,   O. Usikov Institute for Radiophysics and Electronics, NAS of Ukraine, 12, Proskura str., 61085 Kharkiv, Ukraine,   V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 41, prospect Nauky, 03028 Kyiv, Ukraine
Published: July 2024

We report the first study of Zn1−xMnxSe:Fe2+,Cr2+ (x = 0.3) crystals by continuous wave (CW) and pulsed electron paramagnetic resonance (EPR) spectroscopic techniques. Using the advantages of pulsed EPR, spin Hamiltonian parameters for Mn2+ ions were obtained (g∥ = g⊥ = 2.0060(3), А∥ = А⊥ = 61.84·10–4 cm–1, and D = –7.1·10–4 cm–1). The temperature dependence of the spin relaxation times of Mn2+ ions was described using the Orbach process for TM–1 and the Raman mechanisms for T1–1. The spin Hamiltonian parameters for Cr2+ ions were determined from the analysis of the angular dependence of CW EPR spectra (g⊥ = 1.98, g∥ = 1.961, D = –2.48 cm–1, and a = 0.02 cm–1). Moreover, an anisotropic ferromagnetic resonance (FMR) line was observed, the nature of which has yet to be clarified.
Phase transition and comparative study of CuxCd1–xS (x = 0.8, 0.6, 0.4, and 0.2) nanoparticle system
Authors: Rose M.M. ,   Mar Ephraem College of Engineering and Technologies, Elavuvilai, Tamilnadu, India, Christy R.S. , Benitta T.A. , Kumaran J.T.T. ,   Mar Ephraem College of Engineering and Technologies, Elavuvilai, Tamilnadu, India,   Mar Ephraem College of Engineering and Technologies, Elavuvilai, Tamilnadu, India,   Department of Physics and Research Centre, Malankara Catholic College Mariagiri
Published: July 2024

Microwave-assisted chemical precipitation was used to prepare CuxCd1–xS (x = 0.8, 0.6, 0.4, and 0.2) nanoparticles mixture. The crystal structure, size, and surface morphology of the as-synthesized nanoparticles were studied using X-ray diffraction and SEM. Presence of copper, cadmium, and sulphur in proper ratios in the samples was confirmed by energy-dispersed X-ray analysis. DC electrical resistance measurements of all the samples in the temperature range of 300…500 K showed phase transition above a certain temperature.
Composite polymer films with semiconductor nanocrystals for organic electronics and optoelectronics
Authors: Pylypova O.V. ,   Educational and Research Institute of High Technologies, Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine, Korbutyak D.V. , Tokarev V.S. , Pylypov A.I. , Evtukh A.A. ,   V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 03028 Kyiv, Ukraine,   Lviv Polytechnic National University, 79013 Lviv, Ukraine,   Dnipro University of Technology, 49005 Dnipro, Ukraine,   1Educational and Research Institute of High Technologies, Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine,   V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 03028 Kyiv, Ukraine
Published: July 2024

Organic materials and, in particular, polymer films enhanced with certain nanocrystals have a potential for wide application in electronics and optoelectronics due to their organic flexibility, lightweight, simple integration, affordable manufacturing cost, and low environmental impact of their production. The purpose of this research is to investigate the electrical properties of polymer-based composite films containing Cd1–xCuxS nanocrystals in order to determine their prospects for use as conductive layers in organic electronics and optoelectronics. The paper contains a detailed description of the synthesis method of hybrid nanocomposite films based on peroxide reactive copolymer (PRC) with Cd1–xCuxS nanocrystals. The defect structure of the films is studied by analyzing the photoluminescence spectra. Current-voltage characteristics of the films with different Cd and Cu contents in the Cd1–xCuxS nanocrystals embedded into the polymer matrix, deposited on glass substrates are measured in the dark and under light illumination. The film conductivity is found to increase with the Cu content in the Cd1–xCuxS nanocrystals. The carrier transport corresponds to the Ohm law at low voltages and the space charge limited current (SCLC) or Poole–Frenkel mechanisms at higher ones. The conductivity of the polymer-based hybrid nanocomposite films has a weak dependence on the intensity of light illumination. The explanation of the obtained experimental results is proposed.
Modeling and simulation of a high power InGaP/GaAs heterojunction alphavoltaic battery irradiated by americium-241
Authors: Bouzid F. ,   Research Center in Industrial Technologies CRTI, P.O. Box 64, Cheraga 16014, Algiers, Algeria, Kayahan E. , Saeed M.A. , Babes B. , Ghoneim S.S.M. , Pezzimenti F. ,   Laser Technologies Research and Application Center (LATARUM), Kocaeli University, 41275, Yeniköy, Kocaeli, Turkey,   Department of Physics, Division of Science & Technology, University of Education, Lahore, Pakistan,   Research Center in Industrial Technologies CRTI, P.O. Box 64, Cheraga 16014, Algiers, Algeria,   Electrical Engineering Department, College of Engineering, Taif University, P. O. Box 11099, Taif 21944, Saudi Arabia,   DIIES – Mediterranea University of Reggio Calabria, 89122 Reggio Calabria, Italy
Published: July 2024

The design of semiconductor-based heterojunction structures can be turned useful to raise the efficiency of nuclear micro-batteries. In this study, we have investigated a micro-power alphavoltaic battery by using a lab-made software. The nuclear battery consists of an In0.49Ga0.51P/GaAs heterostructure irradiated by americium-241 (Am241) alpha particles with an average kinetic energy of 5.485 MeV. The alphavoltaic battery exhibits an overall active area of 1 cm2. Based on a comprehensive analytical model, the device current density-voltage J(V) and output electric power P(V) characteristics are simulated extracting the energy conversion efficiency. The model takes into account the reflection of the incident alpha particles, the ohmic losses, the effect of the boundary between the two layers, and the depletion region borders. Different values of the radioisotope apparent activity density, the emitter and base dopant concentrations, and the surface recombination velocities in both the front and back layers are considered during the simulations to optimize the battery performance. The present study reports that by irradiating by a 2.4 mCi/cm2 Am241 source, the obtained energy conversion efficiency of the battery can reach 10.31% with a maximum output power density of 16.07 µW/cm2. Therefore, In0.49Ga0.51P/GaAs heterostructure coupled with Am241 seems a promising design for long-term energy supply in harsh environments.
Integrating Science and Islam : Development of Teaching Materials for Environmental Chemistry Courses
Authors: Muslim Buchori , Nahadi Nahadi , Anwar Sjaeful , Munawaroh Heli Siti Halimatul , Nuraeni Neng Sri
Published: July 2024

AbstractThe teaching materials on chemistry integrated into Islam are not yet available at the university level. Teaching materials can be used in learning activities. This study aims to develop integrated Islamic chemistry teaching materials for environmental chemistry courses. This research uses the Four Steps Material Teaching Development method (4STMD). 4STMD consists of four stages, namely the selection stage, structuring stage, characterisation stage, and reduction stage. At the stage of selection and structuring, the results of integration between environmental chemistry subjects and the Qur’an, Hadith, Fiqih, and Aqeedah Morals are obtained. At the characterisation stage, the concepts tested have easy characteristics, with an overall score of 86.9%. Based on the characterisation test results, the reduction phase in this research was not carried out because all concepts have easy characteristics. The completed teaching materials are then tested for feasibility by experts based on material aspects, presentation, language, and graphics. Based on the results of the feasibility test of the teaching materials, the average score is 95%. This shows that the teaching materials are considered worthy with a ‘very good’ predicate.AbstrakBahan ajar kimia terintegrasi keislaman belum tersedia di tingkat Universitas. Bahan ajar dapat digunakan dalam kegiatan pembelajaran. Penelitian ini bertujuan untuk mengembangkan bahan ajar kimia terintegrasi keislaman pada Mata Kuliah Kimia Lingkungan. Penelitian ini menggunakan metode Four Steps Teaching Material Development (4STMD). 4STMD terdiri dari empat tahapan, yaitu tahap seleksi, tahap strukturisasi, tahap karakterisasi, dan tahap reduksi. Pada tahap seleksi dan strukturisasi, didapatkan hasil integrasi antara mata kuliah kimia lingkungan dengan Al Qur’an, Hadits, Fikih, dan Akidah Akhlak. Pada tahap karakterisasi, keseluruhan konsep yang diujikan memiliki karakteristik mudah, dengan nilai keseluruhan rata-rata sebesar 86,9%. Berdasarkan hasil uji karakterisasi, tahap reduksi pada penelitian ini tidak dilakukan karena seluruh konsep memiliki karakteristik mudah. Bahan ajar yang telah selesai disusun selanjutnya di uji kelayakannya oleh ahli berdasarkan aspek materi, penyajian, bahasa, dan grafika. Berdasarkan hasil uji kelayakan bahan ajar, didapatkan nilai rata-rata sebesar 95%. Hal ini menunjukkan bahwa bahan ajar dinyatakan layak dengan predikat sangat baik.How to Cite: Muslim, B., Nahadi, Anwar, S., Munawaroh,  H.S.H., & Nuraeni, N.S (2023). Integrating Science and Islam : Development of Teaching Materials for Environmental Chemistry Courses. TARBIYA: Journal of Education in Muslim Society, 10(2), 207-218. doi:10.15408/tjems.v10i2.32210.
What is the Future Position of Factor XIa Inhibitors for Patients with Atrial Fibrillation?
Authors: Komiyama Maki , Iguchi Moritake , Wada Hiromichi , Ikeda Takanori , Dan Gheorghe-Andrei , Hasegawa Koji
Published: July 2024

Factor XIa (FXIa) may be involved in thrombus formation, but only to a lesser extent involved in haemostasis. Several novel FXIa inhibitors are under investigation, and Phase II trials demonstrated marked reduction of bleeding compared with standard treatment by factor Xa inhibitors. Asundexian is a small molecule that selectively inhibits FXIa. A large-scale Phase III clinical trial, OCEANIC-AF, has been initiated to compare the efficacy and safety between asundexian and apixaban. However, the OCEANIC-AF study was recently halted due to the inferior efficacy of asundexian versus the apixaban control arm. The present report describes up-to-date evidence of FXIa inhibitors and discusses the future position of FXIa inhibitors for patients with AF.
Modified projection generalized two-point two-stage extragradient quasinewton method for saddle point problems
Authors: Malinov Valerian G.
Published: July 2024

Abstract. The purpose of this work is to investigate a new method mentioned in the article’s name. This method is designed for solving saddle problems with convexo-concave differentiable function that is defined on a convex closed subset of some finite-dimensional euclidean space and has «ravine» level hypersurfaces. The paper contains a brief survey of native publications devoted to new projection gradient methods for solving saddle problems. A mathematical statement of a saddle problem, information about solution method, some auxiliary inequalities, and method’s convergence are discussed in the article as well. Moreover, iterative formulas are exemplified for another perspective saddle method for convexo-concave differentiable saddle functions, which may be validated as well as formulas proved in this work. New auxiliary inequalities complete mathematical apparatus of convex analysis for justification of convergence and rate of convergence and have value also for justification of another methods of operations research. By using obtained inequalities, convex analysis and numerical mathematics, convergence of the saddle method for convexo-concave smooth saddle functions with Lipschitz partial gradients is proved. Under supplementary conditions, for twice continuously differentiable saddle functions, superlinear and quadratic rate of convergence of saddle method are proved, too.
DIET-INDUCED CHANGES IN SOME PARAMETERS OF OXIDATIVE SATUS IN WISTAR RATS – COMPARISON BETWEEN THREE DIFFERENT DIETS AND EFFECTS OF REPLACING DIETARY SUCROSE WITH STEVIOL GLYCOSIDES
Authors: K. Trifonova
Published: July 2024

PURPOSE: The aim of the study was to evaluate the effects of a high-fat diet, high-carbohydrate diet and a combined high-fat high-carbohydrate diet on some parameters of oxidative status in a rat experimental model, and to test the potential positive effects of replacing sucrose with stevia extract in some of the diets. METHODS: The following parameters of oxidative status were measured: advanced oxidation protein products (AOPP), catalase, glutathione and ferric reducing ability of plasma (FRAP). Fifty-six male Wistar rats were used in the study. Rats were divided into seven groups: 1) group BD (before diet), in which parameters were measured before beginning of the diet; and six more groups in which parameters were measured after 5 weeks on the respective dietary regimen, as follows: 2) group SD (standard diet); 3) group HFD (high-fat diet); 4) group HCHD (high-carbohydrate diet); 5) group HFHCHD (high-fat high-carbohydrate diet); 6) group SD-S (standard diet with added stevia extract); 7) group HFD-S (high-fat diet with added stevia extract). RESULTS: Diets enriched with fats and carbohydrates induce significant changes in some of the oxidative status parameters. CONCLUSIONS: A five-week experimental diet enriched with fats and carbohydrates has the potential to disrupt pro-oxidant / antioxidant balance in rats.
OPTIMIZATION OF THE HALAL INDUSTRY SECTOR: THE POTENTIAL OF HALAL MEDIA AND ENTERTAINMENT IN INDONESIA
Authors: Andani Listia , Fathoni Hamdan , Nurdiansyah Irdan
Published: July 2024

This research examines efforts to optimize the halal industry sector in Indonesia, with a particular focus on the potential of halal media and entertainment. The significant growth of the halal industry market presents a substantial opportunity for Indonesia, a nation with a predominantly Muslim population. A qualitative descriptive method is employed to investigate strategies for leveraging the potential of halal media and entertainment in Indonesia. The research emphasizes the analysis of relevant data related to the topic, aiming to enhance the appeal and contribution of the halal media and entertainment sector through a literature review approach.  By conducting an in-depth analysis of consumer trends and industry developments, this study provides a comprehensive perspective on the opportunities and challenges in the development of halal media and entertainment. Special attention is given to regulatory and promotional strategies to maximize the potential of this sector. The findings of this research are anticipated to offer practical guidance for stakeholders in the halal industry, with the objective of reinforcing Indonesia's position as a leader in the global halal industry. The implications of this study include the development of more effective strategies to increase public awareness and industry participation, as well as providing a foundation for policy development that supports the sustainable growth of the halal media and entertainment sector in Indonesia.
GREEN CUSTOMER VALUE AND GREEN MARKETING AS ENCOURAGING SUPPORT GREEN PURCHASE INTENTION
Authors: Hermayanti Alma Bella , Heryana Toni , Ramdhany Muhammad Arief , Ansamu Umar
Published: July 2024

This study examines the influence of Green Customer Value on Green Purchase Intention, both directly and indirectly, through Green Marketing in Indonesia. Utilizing a quantitative approach, data was collected from 95 respondents aged 18-50 via an online survey. The findings indicate that Green Customer Value significantly impacts Green Marketing, underscoring that consumers' eco-friendly values enhance the effectiveness of green marketing strategies. Furthermore, Green Marketing significantly influences Green Purchase Intention, highlighting the importance of sustainability-focused marketing strategies in driving consumer purchase intentions. However, Green Customer Value does not directly affect Green Purchase Intention. Instead, its indirect effect, mediated by Green Marketing, emphasizes the need for integrating green marketing strategies to bridge the gap between consumer values and purchasing behavior. These results contribute to the literature by elucidating the components of Green Customer Value and their impact on marketing strategies. The study offers practical insights for businesses aiming to enhance eco-friendly consumer perceptions and drive sustainable purchasing decisions.
ISLAMIC FINTECH LENDING DETERMINANTS USING ISLAMIC FINANCIAL LITERACY AS A MODERATION VARIABLE
Authors: Mahmud Muhammad Daud Bin , Quilim Cici Aryansi , Salmatia Salmatia
Published: July 2024

This study aims to determine the financial literacy of MSME actors in Morotai Island Regency as well as their erceptions in utilizing islamic fintech lending as an alternative business funding. Moderated Regression Analysis (MRA) with SPSS version 25 is the analysis approach used. 108 MSME units in six randomly chosen sub-districts received questionnaires with slovin technique, which was applied with a 0.05 margin of error and predetermined criteria. The study's findings demonstrate that the usage of islamic fintech lending is highly influenced by the perceived usefulness and ease of use of fintech. In addition, this study discovered that the impact of perceived usefulness and perceived ease of use on the frequency with which MSMEs use islamic fintech lending is not moderated by islamic financial literacy. The study's practical contribution is the realization that islamic financial literacy apart cannot be as a criteria for evaluating how MSME utilize islamic fintech lending to obtain funding for company expansion. Further research is necessary on digital literacy, which refers to MSME actors' ability in utilizing technology and digital platforms to obtain fintech funding. In addition, it's essential to focus on external factors like the availability of Islamic financial technology funding education and training for MSME.
Konsep Sakinah sebagai Landasan Pendidikan Anak dalam Keluarga
Authors: Muthmainnah Sari Anthika , Hidayah Nurul
Published: July 2024

The neglect of family as the primary educational environment for children is the root of many issues in the world of education. However, the influence of family on a child's character and education is significant. Disharmony is suspected as the cause of educational failure within families. Utilizing sociological, anthropological, and psychological approaches, this paper aims to explore the concept of education based on the idea of sakinah. Qualitative data collected through library research and analyzed through content analysis is used in this writing. It is found that education based on sakinah will reduce the likelihood of children experiencing trauma, which will have a significant impact on their future, both emotionally and intellectually.
Fostering Environmental Knowledge and Literacy with Natural Products Experiment Activity Worksheets
Authors: Nuswowati Murbangun , Kusmanto Harjito , Harjono Harjono , Nuryanto Nuryanto , Zahro Ainu Ilmiatuz , Sharif Aisyah Mohamad
Published: July 2024

This research aims to improve student environmental knowledge and literacy with natural products experiment activity worksheets. The methods used in this research are pre-experimental. The subjects of this research are 15 students from an Islamic high school. The research results show that natural products experiment activity worksheets effectively improve students' learning outcomes. The research results indicate that the pre-test results obtained an average score of 50.8, indicating that students needed help understanding the material before using natural products' experiment activity worksheets. Post-test results showed an average score of 80.5, indicating that students experienced increased learning outcome scores. The average normalized gain score is 0.59, indicating a medium increase in chemistry learning outcomes. The self-assessment questionnaire on environmental literacy, conducted after using the integrated natural products experiment activity worksheets, showed that knowledge had an average score of 4.33 and was rated as excellent, behavior had an average score of 4.31 and was rated as good, and attitude had an average score of 4.37 and was also rated as good. Overall, students' environmental literacy was rated as outstanding, with an average score of 86.74%.
Chemo-Entrepreneurship (CEP) Essentials: Practical Videos on Functional Group Material via YouTube
Authors: Umah Nurul , Kamaludin Agus
Published: July 2024

Entrepreneurship is crucial for students to navigate intense competition in the globalized era. Chemo-entrepreneurship (CEP) integrates chemistry education with the production of marketable products, which can serve as practical videos to illustrate the application and relevance of functional group materials in daily life, making chemistry learning more impactful when applied practically. This research aims to develop YouTube content in the form of practical videos on functional group material containing chemo-entrepreneurship. The method used in this research is research and development (R&D) with a define, design, develop, and disseminate (4-D) model. The products developed are assessed by material, media, and educational practitioner experts using product quality assessment sheets and student responses. The percentage of assessments from material, media experts, and reviewers are 87, 96, and 91%, respectively. Students responded positively to the practical video that was developed and obtained a percentage of 97%. Assessments from experts, reviewers, and students are in the very good category. Based on the data obtained, the practical video developed is suitable for use as an alternative media in practical learning of functional group material to improve students' entrepreneurial spirit.
Calvo Revilla, Ana. Un deambular circular: estudio sobre la obra de Gonzalo Hidalgo Bayal. Madrid: Visor, 2023. 289 pp. (ISBN: 978-84-9895-520-0)
Authors: Mora Vicente-Luis
Published: July 2024

Book Review