bluuebunny/crossref_metadata_2025_split huggingface dataset:
On a solvable difference equations system of second order its solutions are related to a generalized Mersenne sequence
Authors: Hassani Murad Khan , Touafek Nouressadat , Yazlik Yasin 
Published: July 2024

Abstract
In this paper, we consider a class of two-dimensional nonlinear difference equations system of second order, which is a considerably extension of some recent results in the literature. Our main results show that class of system of difference equations is solvable in closed form theoretically. It is noteworthy that the solutions of aforementioned system are associated with generalized Mersenne numbers. The asymptotic behavior of solution to aforementioned system of difference equations when a = b and p = 0 are also given. Finally, numerical examples are given to support the theoretical results presented in this paper.
Mechanical properties of Sr inoculated A356 alloy by Taguchi-based gray relational analysis
Authors: Osman Yılmaz Serdar , Teker Tanju , Savaş Dalmış İbrahim , Bulus Ercan 
Published: June 2024

Abstract
In this study, Sr inoculated A356 alloy casted by sand-casting technique. Production parameters such as Sr concentration (wt.%), aging temperature (°C), aging time (h), and constant cooling rate were used. The effect of heat treatment on the microstructure and mechanical features of inoculated A356 materials was examined by using scanning electron microscopy, optical microscopy, and the Taguchi-based gray relational analysis method. The optimum production parameters for A356 alloy were determined as 0.03 Sr concentration, aging 300 °C temperature, and 3 h aging time. Multiple response optimization based on the interaction of these parameters provided a 30.15 % improvement in performance. Gray relational grade (GRG) experimental results showed that the most important parameter was Sr concentration, with a contribution of 76.51 %, according to the analysis by ANOVA statistical method.
Glossary of terms used in biochar research (IUPAC Technical Report)
Authors: Bilias Fotis , Sewu Divine Damertey , Woo Seung Han , Anastopoulos Ioannis , Verheijen Frank , Lehmann Johannes , Teixeira Wenceslau Geraldes , Gasparatos Dionisios , Draper Kathleen , Kalderis Dimitrios 
Published: June 2024

Abstract
Biochar is the solid carbonaceous product of biomass pyrolysis. The properties of biochar depend on the biomass feedstock as well as the pyrolysis temperature and time. Therefore, biochars with different properties and functionalities can be produced. Biochar research has been intensive in the past 15 years, focusing mainly on soil applications, wastewater treatment, and contaminant remediation. However, a formal definition of biochar and related terms is missing, which hinders the standardization of scientific results worldwide and the scaling-up of research at the industrial level. Furthermore, an official terminology may promote the development of a harmonized legal framework for biochar production and applications, both at regional and national levels. This glossary of terms consists of 178 scientifically sound definitions of the most commonly used terms in biochar research. The definitions of this glossary are interconnected, allowing the reader to further explore the synergies between terms. The distribution of terms reflects the multidisciplinarity of biochar research: chemistry, material science and engineering, and soil science are the main disciplines represented here. The list of terms is by no means exhaustive and the strategic objective of this effort is to develop a dynamic document in which more terms will be added in the future, and the existing ones will be refined, as biochar research evolves.
Wind effect in H2O absorption lines perturbed by He, Ar, Kr, and Xe pressure
Authors: СТАРИКОВ В.И. , ПЕТРОВА Т.М. , СОЛОДОВ А.М. , СОЛОДОВ А.А. , ДЕЙЧУЛИ В.М. 
Published: July 2024

Исследовано влияние двух факторов на контур линии поглощения молекулы водяного пара в смеси с гелием, аргоном, криптоном и ксеноном: зависимости коэффициентов уширения g и сдвига центра линии d от скорости va поглощающей молекулы Н2О (эффект ветра) и изменения скорости Н2О при столкновении с указанными атомами. Для исследования выбраны три линии поглощения молекулы Н2О из полосы n1 + n2 + n3 с различными вращательными квантовыми числами начального квантового состояния. Показано, что наиболее сильно эффект ветра проявляется при взаимодействии молекулы Н2О с атомами аргона, криптона и ксенона. Результаты работы могут быть использованы при анализе спектров поглощения водяного пара в смеси с одноатомными газами.
The influence of two factors on the contour of an absorption line of water vapor molecule in a mixture with helium, argon, krypton, and xenon is studied: the dependence of the broadening coefficients g and shifting coefficient d on the velocity va of the absorbing H2O molecule (wind effect) and the change in the velocity of H2O upon collision with these atoms. Three absorption lines of H2O molecule from n1 + n2 + n3 band with different rotational quantum numbers of the initial quantum state were chosen for the study.
Otimização da metodologia de monitoração in vivo de 123I na tireoide em trabalhadores que atuam na produção de radiofármacos
Authors: Dantas Ana Letícia Almeida , Saraiva Mylena Queiroz , Lucena Eder Augusto , Dantas Bernardo Maranhão 
Published: June 2024

123I is a radionuclide used for diagnosis in nuclear medicine. Its production in Radiopharmacy Centers poses a risk of external and internal exposure to the workers involved in this practice. Controlling this type of exposure through individual monitoring is necessary to estimate the magnitude of occupational doses. The In Vivo Monitoring Laboratory (LABMIV-IRD) develops techniques aimed at meeting the demand for in vivo monitoring of workers. This paper describes the calibration of a HPGe detection system for monitoring 123I in thyroid geometry in occupationally exposed individuals (OEI). In order to obtain the calibration curve in Efficiency (cps/dps) vs Energy (keV), it is used a thyroid-neck phantom containing a certified activity of 166mHo homogeneously distributed. Based on the calibration curve it is calculated the specific calibration factor for the quantification of 123I in the thyroid. The sensitivity of the technique is evaluated by determining the minimum detectable activity (MDA), minimum detectable intake (MDI) and minimum detectable effective dose (MDED). It was obtained a calibration factor of (0.0079 ± 0.0001) cps/dps, a MDA of 5Bq, a MDI of 2.78x106 Bq and a MDED of 3.23x10-1 mSv. The technique is sufficiently sensitive for in vivo measurement of 123I in the thyroid and is suitable for the monitoring of workers occupationally exposed to this radionuclide in radiopharmaceutical production plants.
Pembelajaran Unsur-Unsur Bahasa Arab (Mufradat dan Qawaid) dengan Penerapan Strategi Pembelajaran Flashcard di Kelas V Madrasah Ibtidaiyah (MI)
Authors: Taufik Taufik , Azmi Diva Ikrima , Zahire Izni Nurul Ambami , Sa'adah Nafilatus , Ernawati Novi , Wulandari Putri 
Published: June 2024

Pembelajaran unsur-unsur bahasa Arab tentang Mufradat dan Qawaid dengan menerapkan strategi pembelajaran Flashcard di kelas V Madrasah Ibtidaiyah (MI) bertujuan untuk memaksimalkan aspek kognitif, afektif, dan psikomotorik peserta didik. Penelitian ini menggunakan metode kualitatif, yaitu dalam tahapan ini terdiri dari proses pengumpulan data sampai penafsirannya dalam bentuk deskripsi. Hasil penelitian ini menunjukkan bahwa penerapan strategi pembelajaran flashcard dalam pembelajaran unsur - unsur bahasa Arab ( Mufradat dan Qawaid ) pada kelas V MI dilakukan dengan optimal yang ditunjukkan dengan adanya hasil rangkuman beberapa jurnal yang sudah ditelaah oleh peneliti.
Исследование устройства зондирования подземных электрокоммуника-ций для тоннелепроходческих комплексов в условиях экранирования кабельной линии железобетонными конструкциями
Authors: Живодерников Андрей Вячеславови , Павленко Александр Валентинович , Хорошев Артём Сергеевич , Щучкин Денис Александрович , Большенко Андрей Викторович 
Published: June 2024

Рассмотрены вопросы численного моделирования устройства зондирования подземных электрокоммуникаций на основе магниточувствительных феррозондовых датчиков с различными вариантами взаимного расположения проводников кабельных линий и экранирующего действия железобетонных конструкций для тоннелепроходческих комплексов, работающих в условиях плотной городской застройки. Проведено исследование изменения топологии электромагнитного поля, создаваемого действующей силовой кабельной линией с разными конфигурациями ее проводников путем использования программного комплекса GMSH + GetDP. Установлены параметры ослабления магнитного поля за счет свивки проводников кабеля и размещения кабельной линии в железобетонном кабельном лотке. Получены зависимости для величин магнитной индукции в грунте и ножевой части корпуса проходческого щита от конфигурации проводников кабельной линии и влияния железобетонных конструкций, подтверждена возможность обнаружения электрокоммуникаций на заданном расстоянии опережающего зондирования.
Обоснование преимущества применения обобщенной методики выбора распределительных трансформаторов с учетом взаимосвязи их параметров с величиной и характером нагрузки
Authors: Костинский Сергей Сергеевич 
Published: June 2024

Выполнены исследования, связанные с обоснованием преимущества применения обобщенной методики оценки энергоэффективности передачи электроэнергии силовыми трансформаторами I - III габаритов, эксплуатируемыми в распределительных электрических сетях. Для реализации методики расчета коэффициента полезного действия силовых трехфазных двухобмоточных трансформаторов использована схема замещения, обобщающая в один модуль двухобмоточный трансформатор и нагрузку; для силового трансформатора использована Т-образная схема замещения, отличающаяся использованием условно-постоянных коэффициентов и учитывающая взаимосвязь параметров трансформатора с величиной и характером нагрузки. Для оценки относительной погрешности разработанной методики в качестве истинного значения использованы данные, полученные с применением компьютерных моделей систем электроснабжения с трансформаторами соответствующих габаритов, разработанные в программном комплексе Multisim. Расчеты параметров прикладной статистики, необходимые для обоснования преимущества применения разработанной методики, выполнены в программном комплексе STATISTICA 10. Анализ применения формулы для расчета коэффициента полезного действия силовых трансформаторов с использованием условно-постоянных коэффициентов, по сравнению с общепринятым выражением для силовых трансформаторов I – III габаритов, показал, что его использование позволяет повысить точность расчета коэффициентов полезного действия для всего исследуемого ряда номинальных мощностей распределительных трансформаторов, наибольший эффект наблюдается для трансформаторов I габарита. Применение предложенного соотношения для силовых трехфазных двухобмоточных трансформаторов, относящихся к I габариту, позволяет повысить точность расчета в соответствии с медианными значениями в 3,7 раза. При этом снижаются размах вариации в 5,3 раза, децимальный размах и итерквартильный разброс – в 4,5 раза, а среднеквадратичное отклонение – в 4,8 раза.
Punição ou Reputação? Uma análise dos Honorários e Mudança da Auditoria após a Reapresentação das Demonstrações Financeiras
Authors: Brandão Carolini Verdan , Marques Vagner Antônio , Ballarini Laise Mascarenhas , Pain Patrícia 
Published: June 2024

Objetivo: Analisar se as empresas que reapresentaram as demonstrações financeiras sofreram alterações nos contratos de auditoria. Verificamos se após a ocorrência do evento, as empresas que reapresentaram as DFs pagaram honorários maiores ou trocaram o auditor/firma de auditoria.
Método: Dados de 323 empresas não financeiras (2.701 observações firma/ano) listadas na Brasil, Bolsa, Balcão (B3), referentes ao período de 2010 a 2020, foram analisados por meio da estatística descritiva, de teste de diferença entre as médias, e da regressão com dados em painel.
Resultados: Os resultados evidenciaram que empresas que reapresentam suas DFs tendem a pagar honorários maiores e/ou trocar de auditor/firma de auditoria no ano subsequente. Estes sugerem que a reapresentação está associada a uma maior percepção de risco por parte do auditor, porém, as empresas buscam proteger sua reputação trocando de auditor nos casos de reapresentação.
Contribuições: Nossos achados têm potencial de contribuição para investidores, auditores, reguladores, acadêmicos, e membros de conselhos de auditoria e governança, pois apresentam evidências acerca de potenciais implicações empíricas das reapresentações sobre os contratos de auditoria subsequentes, e sugerem que o aumento dos honorários e a mudança da auditoria funcionem como mecanismos de punição ao auditor e/ou proteção do risco de reputação organizacional.
Strategi Komunikasi Penyuluhan Pencegahan Stunting di BKKBN Kota Baubau
Authors: Chatra Al Shafa Qolby Naviu  , Ansar Suherman  , Wa Nurfida  
Published: June 2024

Penelitian bertujuan untuk mengetahui Strategi komunikasi BKKBN Baubau dalam melakukan kegiatan penyuluhan pencegahan stunting dan hambatan yang dialami BKKBN Baubau dalam kegiatan penyuluhan pencegahan stunting. Metode penelitian yang digunakan yaitu deskriptif kualitatif, penelitian dilakukan di BKKBN Kota Baubau,Kecamatan Murhum, Kelurahan Lamangga, Provinsi Sulawesi Tenggara. Penelitian ini dilakukan pada bulan Februari-Maret 2024. Hasil penelitian yang diperoleh menjelaskan bahwa, BKKBN Kota Baubau menerapkan strategi komunikasi yang komprehensif untuk memberikan penyuluhan pencegahan stunting kepada masyarakat. Yang dimana dalam strateginya dibentuk TPPS (Tim Percepatan Penurunan Stunting) yang dimana semua OPD turut serta dalam bekerjasama di TPPS tersebut. Program TPPS itu sendiri yaitu program Bapak Asuh. Untuk tingkat yang lebih bawah atau tingkat kelurahan, BKKBN Kota Baubau di amanahkan mengelolah TPK (Tim pendamping keluarga ) dengan kegiatan KIE (Komunikasi Informasi dan Edukasi) yang terdiri dari bidang DALDUK (pengendalian penduduk dan penyuluhan), bidang KS (keluarga sejahtera), PKB (Penyuluh keluarga Berencana) dan juga mitra koordinasi yaitu para penyuluh KB serta turut bekerjasama dengan bidan dan juga PKK (Pemberdayaan Kesejahtraan Keluarga. Wartawan yang membantu mempromosikan, media lokal yang digunakan seperti mengirim flyer dan juga baliho di beberapa tempat. BKKBN juga menginovasikan aplikasi elektronik siap nikah dan hamil (Elsimil) dengan tujuan utama untuk menekan angka stunting.
Study of the morbidity profile including depression among the elderly in the rural area, East Bangalore
Authors: Menzil Margaret , R. Vinutha , S. K. Kallepalli Swarna , Kamunuri Ravikiran 
Published: June 2024

Background: Old age is associated with diminished physiological reserve; so any physical illness, metabolically derangement or pharmacological challenge can worsen cognitive and physical function. The only way to minimize or avoid these will be to be on the lookout and have a proactive approach and assessment in every older patient irrespective of the presenting complaint. This study aimed to assess the socio-demographic profile and self reported morbidity pattern of the elderly population and to estimate the prevalence of depression among the elderly population using the geriatric depression scale.
Methods: A pre-designed, pretested and semi-structured questionnaire was used in the study. The data collection technique is by personal interview of the study subjects. A pre-designed, pretested and semi-structured questionnaire was used in the study. The data collection technique is by personal interview of the study subjects.
Results: In our study more women were under depression than the men. The most common physical morbidity among the elderly population was cataract (59.7%), followed by arthritis (57.1%), non- specific body pains (40.1%) and hypertension (39%).
Conclusions: Prevalence of depression among the elderly population is reported to be high (84.3%) in this study. Multi morbidity, socio economic factors and financial dependence were factors associated with depression in elderly.
Assessment of awareness among parents about dietary habits and its relation to oral health in children: a cross sectional study
Authors: Hugar Shweta S. , Manapragada Saatmika , Hugar Shivayogi , Pattar Vilas , Karvekar Shruti , Sureshbabu Abhirami 
Published: June 2024

Background: Dental caries is one of the most common infectious diseases which occurs during early childhood and continues to be major public problem. Establishing healthy dietary habits right from a very young age not only improves the oral health but is essential for a child’s growth and development. Since parents are the main caregivers and prime regulators of child’s dietary intake, they play an important role in shaping child’s oral hygiene habits. Hence it is necessary for them to be aware of the right nutrition, right oral hygiene modalities and frequent dental visits for the betterment of child’s overall health.
Methods: A cross-sectional survey was conducted among parents of children visiting to Department of Paediatric and Preventive Dentistry KAHER’s KLE VK Institute of dental sciences, Belagavi. Subjects were selected according to inclusion criteria. This study was a cross-sectional questionnaire-based study conducted among parents about dietary habits and its relation to oral health in children.
Results: This study shows the statistically significant results with effect among parents about awareness of dietary habits and its relation to oral health in children.
Conclusions: With the results it can be concluded that children who had parents with low knowledge scores were more likely to experience caries and have poor oral hygiene.
VACINAÇÃO CONTRA A COVID-19 EM INDÍGENAS NO BRASIL
Authors: Saliba Tânia Adas , Alves Oliveira Julio Martinez , Chiba Fernando Yamamoto , Saliba Moimaz Suzely Adas 
Published: June 2024

O objetivo foi valiar o impacto causado pela vacinação com o início da campanha de imunização em relação aos dados epidemiológicos da Covid-19 nos Distritos Sanitários Especiais Indígenas(DSEIs) de Mato Grosso em 2021 . Trata-se de um estudo ecológico, documental, quantitativo, realizado de Janeiro a Julho de 2021. Foi efetuada uma análise documental dos dados epidemiológicos relacionados a Covid-19.As variáveis estudadas foram o número de indígenas que vivem em cada DSEI, número de vacinados por distrito, o número de casos confirmados pela doença, a taxa de incidência, prevalência e o número de óbitos notificados após o início da vacinação em cada DSEI. Houve redução de 66% no número de casos e 82% no número de óbitos no período de 2020 à 2021, fato que pode ser atribuído as medidas de prevenção e ao impacto da vacinação contra a doença nos Distritos Sanitários Especiais Indígenas do estado de Mato Grosso.
CINE EDUCAÇÃO
Authors: Oliveira de Jesus Lucas , Frezza Pisa Licia 
Published: June 2024

A Lei Federal Nº 13.006/2014 estabelece a obrigatoriedade de reservar duas horas mensais para a exibição de cinema brasileiro nas escolas de ensino básico. No entanto, a aplicação efetiva dessa legislação tem suscitado questionamentos quanto à sua viabilidade. Essa pesquisa teve como objetivo avaliar a adesão a essa lei em escolas públicas regulares do município de Passos (MG) por meio de pesquisa quantitativa e qualitativa survey, foi aplicado um questionário eletrônico com diretores e coordenadores pedagógicos, visando realizar um diagnóstico abrangente sobre a aplicabilidade da referida lei. Os resultados revelaram um notável desconhecimento da legislação e evidenciaram carências estruturais que comprometem sua efetiva implementação. Com base nesses resultados, foi desenvolvido um material didático, como um instrumento de formação continuada destinado aos professores. Além disso, foi elaborado um diagnóstico da aplicação da lei, com o propósito de servir como guia para melhorias no âmbito das autoridades educacionais, municipais e estaduais.
Neglect in Nursing Homes: Prevalence and Risk Factors
Authors: Khalili Zahra , Jafarizadeh Mina , Mohammadi Soudabeh , Molaei Behnam , Ebrahimi Belil Fatemeh 
Published: June 2024

Introduction: Neglect refers to the failure to meet the needs and well-being of elderly individuals. This can include inadequate care by responsible caregivers or a lack of essential necessities such as food, water, shelter, personal hygiene, medication, comfort, and safety. Despite the prevalence of neglect, no studies have specifically investigated its occurrence and related factors among elderly residents in nursing homes in Iran. In this study, we aimed to address this gap by examining neglect among older adults covered by state welfare centers in Ardabil city (Iran) in 2020.

Methods: We conducted a cross-sectional analytical study involving 130 older people in Ardabil, located in northwestern Iran. Our data collection tool consisted of a two-part questionnaire: one section focused on demographic information and the Elder Neglect Checklist. Participants were selected through a census from older adults residing in nursing homes. Data analysis was performed using SPSS software (version 22).

Results: Among the 130 participants, 56 (43.08%) were male, and 74 (56.92%) were female. The overall prevalence of neglect was 39.2%. Dental problems were the most common type of neglect (36.2%), followed by neglect related to providing a healthy environment (24.6%). Additionally, our findings revealed significant associations between neglect and marital status (p = 0.001), previous occupation (p = 0.002), and a history of illness (p = 0.046).

Conclusion: The study highlights a concerning rate of neglect among elderly individuals, posing serious risks to their health and security. To address this issue, health and welfare officials, along with nursing homes, should implement necessary measures to improve the well-being of older adults and align with international standards.
Awareness: the Golden Key to Understanding Healthcare Seeking Behavior among Elderly Hypertensive Patients in Taft, Iran
Authors: Pirouz Mandana , Shavazi Masoumeh Abbasi , Jambarsang Sara , Alimondegari Maliheh , Mirzaei Mohsen 
Published: June 2024

Introduction: Healthcare seeking behavior is crucial for early detection and proper management of hypertension in the elderly. This study investigated the factors influencing healthcare seeking behavior among elderly hypertensive patients residing in Taft, Iran.

Methods: This cross-sectional study recruited 230 hypertensive individuals aged 60 and above residing in Taft, Yazd Province, Iran. Participants were randomly selected and completed a questionnaire through face-to-face interviews. The questionnaire assessed their healthcare seeking behaviors and potential influencing factors. Data analysis was performed using SPSS software. Correlation tests and linear regression analysis were employed to identify significant relationships (p < 0.05).

Results: A significant majority (70%) of participants reported always paying attention to symptoms of high blood pressure. When experiencing symptoms, over half (53.9%) of the participants indicated a preference for visiting health centers, general practitioners' offices, or emergency departments. Among the factors studied, awareness (B = 0.228) emerged as the most significant positive predictor of healthcare seeking behavior (p < 0.05). Other positive influences included decision-making autonomy (B = 0.177), prior experience with healthcare services (B = 0.131), and social support (B = 0.131) – all statistically significant at p < 0.05. Conversely, barriers to healthcare seeking had a negative and significant impact (B = - 0.064, p < 0.05). Collectively, the investigated factors explained 23% of the variation observed in healthcare seeking behavior among the elderly participants (R2 = 0.23).

Conclusion: This study identified awareness of hypertension as the strongest predictor of healthcare seeking behavior in elderly patients. Additionally, providing accessible and supportive healthcare services can further encourage elderly hypertensive patients to seek necessary care.