bluuebunny/crossref_metadata_2025 huggingface dataset:
МИНИМИЗАЦИЯ РИСКОВ ИПОТЕЧНОГО КРЕДИТА НА НЕДВИЖИМОСТЬ В СОВРЕМЕННЫХ УСЛОВИЯХ
Authors: Шахаева Ф.М.
Published: March 2023

Бизнес-ипотечные кредиты на недвижимость связаны не только с интересами коммерческих банков, они также влияют на стабильность финансового рынка государства. В процессе его работы существует много рисков. В данной статье в основном анализируются риски, с которыми сталкиваются ипотечные кредиты на недвижимость, с точки зрения залогодержателя, оценки ипотеки и регистрации ипотеки и т.д. И даются соответствующие предложения по предотвращению рисков, такие как совершенствование соответствующей системы оценки и механизма страхования, а также научная классификация залога, совершенную систему предотвращения рисков и т.д.
ПРОЦЕСС ПОЛУЧЕНИЯ УДОБРЕНИЯ NPK С БИОПОЛИМЕРНЫМ ПОКРЫТИЕМ И ЕГО СРАВНЕНИЕ С АНАЛОГОМ НА ЯГОДНЫХ РАСТЕНИЯХ
Authors: Арсанов М.М. , Сириева Я.Н.
Published: March 2023

Переход к высокопроизводительному и экологически чистому сельскому хозяйству, разработка и внедрение систем рационального использования минеральных удобрений для получения безопасных и качественных, в том числе функциональных продуктов питания – одна из основных задач, поставленных Президентом Российской Федерации В.В. Путиным. Благодаря этому указу теория минерального питания получила бурное развитие в последние десятилетия в рамках научно-технического прогресса в области аналитической химии и физики, молекулярной биологии и генетики. Получены сведения о различных физиолого-биохимических функциях элементов питания растений, а также обобщены закономерности распределения элементов в различных частях растений и плодах (ягодах).
Выявлены основные формы элементов питания в почве и факторы, определяющие биодоступность макро- и микроэлементов.
Целью данной исследовательской работы является производство биоразлагаемого удобрения, в котором Азофоска Универсальная (N16: P16: K16) была равномерно покрыта водорастворимым биополимером 0,05 мм (размер слоя) через реактор непрерывного действия V-star.
Полученные образцы подвергались дальнейшим испытаниям и по сравнению с известным американским аналогом пролонгированного удобрения TAGROW на ягодных растениях под тепличные условия в помещении, объем ягодных корнеплодов, стрессоустойчивость растений, урожайность, полученные плоды исследовали на содержание сахара с помощью рефрактометра RHB-32ATC. Более того, данные ИК спектроскопии полученного биополимерного покрытия Азафоска Универсальная приведены на этом рисунке исследовательская работа.
Market Definition and Market Power in the Era of Blockchain
Authors: Yildiz Okan , Weber Rolf H.
Published: March 2023

While in the last decade, competition law authorities have mainly been concerned with platform businesses, a new technology – the Blockchain – should now attract the attention of regulators. Even though some aspects of said technology have been covered with different legal frameworks in Switzerland and the European Union, this has not been the case with competition law. The article addresses this gap and aims to provide a method for defining markets in the context of the blockchain technology. Furthermore, the analysis sheds light on the determination of market power as the special blockchain infrastructure has proven to cause new problems.
Effect of Basic Life Support Training on Hospital Staff of a Tertiary Care Hospital: A Cross-Sectional Analytical Study
Authors: Siddiqi Fuad Ahmad , Naseer Umer , Arshad Abdul Rehman , Anwar Wasif , Aziz Saad , Yasir Hafiz
Published: March 2023

Objective: To ascertain the benefit of a standardized Basic Life Support (BLS) workshop on the different healthcare cadres in hospitals.Study Design: Cross-sectional analytical study.Place and Duration of Study: The study was carried out at the Medicine Department of Medicine of CombinedMilitary Hospital, Peshawar, Pakistan, from November 2021 to May 2022.Materials and Methods: A hundred individuals participated in the study, including house officers, residents and paramedical staff. It was done through convenient sampling. After consent, their knowledge before the start of the workshop was evaluated through pretest self-structured questionnaires formulated by the American Hearts Association accredited trainers. Afterwards, they underwent a Basic Life Support workshop conducted as per American Heart Association (AHA) standards. At the end of the workshop, they were evaluated by posttest questionnaires. The demographic data of all individuals, including age, gender, education status anddesignation, was recorded. Data were analyzed through SPSS version 21. Paired T-test was applied. A p value of0.05 or less was considered statistically significant at the start of the study.Results: The individuals comprised 55 males and 45 females. It included residents, house officers andparamedical staff with mean ages of 27.86±1.17 years, 24.08±0.28 years and 30.56±2.90 years, respectively.Residents had better pretest scores than house officers and paramedical staff (P value <0.001). There wasstatistically significant improvement in the scores of all individuals (P value <0.001).Conclusion: BLS workshops have helped improve the knowledge of the hospital staff regardless whichevermedical offshoot. Residents had better pretest scores, but house officers improved posttest scores the most.
Passive Cooling Module to Improve the Solar Photovoltaic (PV) Performance
Authors: Abdulmouti Hassan
Published: March 2023

Solar energy is a renewable clean energy. Photovoltaic (PV) cells or solar panels use the sun light as the main source to produce electricity. However, the operating temperature has a significant impact on the PV conversion process and its performance. PV cell technology performance is sensitive to the operating temperature. Increasing cell temperature causes a significant reduction in the output voltage which in turn leads to reducing electrical efficiency. In other words, when the temperature rises, the output current rises exponentially which leads to output voltage to fall. Therefore, PV efficiency decreases. This paper aims to develop a new PV panel passive cooling system that enhances the efficiency of the panel and improves its performance. The design is based on air channels and air chimneys. Overall, cooled solar panels are efficient and cost-effective as their performance is better and their efficiency is higher than the non-cooled solar panels. Our project is designed to serve UAE’s 2021 vision (increased dependence on clean energy and green development), reduce pollution in the environment, and save energy for the next generations. The goal of this research is to lower the temperature of the PV panel., therefore, enhancing the efficiency as well as improving the performance by cooling the PV panel. So, It has the potential to alleviate the problem of overheating solar panels.
The history of the creation and development of the Collection of microorganisms for the baking industry of the Scientific Research Institute for the Baking Industry
Authors:   St. Petersburg branch Scientific Research Institute for the Baking Industry, Petrova M.N. , Lokachuk M.N. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry, Savkina O.A. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry, Kuznetsova L.I. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry, Pavlovskaja E.N. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry, Kostyuchenko M.N. ,   Scientific Research Institute for the Baking Industry Russia, Nosova M.V. ,   Scientific Research Institute for the Baking Industry Russia
Published: March 2023

В статье рассмотрена история создания и развития Коллекции микроорганизмов для хлебопекарной промышленности ФГАНУ НИИХП, которая является единственной уникальной коллекцией микроорганизмов для хлебопекарной отрасли в России и на постсоветском пространстве и одной из крупных коллекций в Европе. Появление коллекции в 30-х годах прошлого века во многом было связано с новым этапом развития индустриального хлебопечения. Раскрыты основные этапы и направления научных исследований в области микробиологии и биотехнологии, в результате которых ФГАНУ НИИХП в течение многих десятилетий поддерживает и пополняет коллекционный фонд высокоактивными штаммами молочнокислых бактерий и дрожжей для хлебопекарной промышленности. Представлены наиболее ценные штаммы микроорганизмов, хранящиеся в коллекции, в том числе виды молочнокислых бактерий, не имеющие аналогов в зарубежных коллекциях. Микробиологические отделы ФГАНУ НИИХП и Санкт-Петербургского филиала снабжают хлебопекарные предприятия страны чистыми культурами молочнокислых бактерий для выведения качественных заквасок, что свидетельствует о высокой ценности коллекции для промышленности. В последние годы проводится активная работа по идентификации коллекционных штаммов при помощи современных молекулярно-генетических методов и паспортизация коллекции. Сохранение чистых культур молочнокислых бактерий и дрожжей для хлебопекарной промышленности, изучение видового состава разных видов заквасок, выделение новых промышленноценных штаммов отвечает национальным интересам Российской Федерации и имеет важное значение для обеспечения продовольственной безопасности и независимости страны.
Study of biotechnological properties of the semi-finished product during the storage and its influence on the quality of gluten-free bread
Authors:   St. Petersburg branch Scientific Research Institute for the Baking Industry, Parakhina O.I. , Savkina O.A. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry, Kuznetsova L.I. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry, Gavrilova T.A. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry, Nutchina M.A. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry, Lokachuk M.N. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry, Frolova Yu.M. ,   St. Petersburg branch Scientific Research Institute for the Baking Industry
Published: March 2023

Статья посвящена изучению влияния срока хранения на биотехнологические свойства безглютенового полуфабриката с направленным культивированием микроорганизмов. Исследования проводились в Санкт-Петербургском филиале ФГАНУ «НИИ хлебопекарной промышленности» в рамках темы госзадания № 0593–2019–0008 «Разработать теоретические основы создания композитных смесей для хлебобулочных изделий с использованием физических методов воздействия, обеспечивающих гомогенность, стабильность смесей и биодоступность нутриентов, для оптимизации рационов питания населения России». Объектами исследования являлись полу фабрикаты длительного хранения на основе сброженных заварок, хлебобулочные изделия. Представлены экспериментальные данные по изменению свойств полуфабрикатов в процессе хранения и их влиянию на физико-химические, органолептические показатели качества готовых изделий, сохранение свежести в процессе хранения и микробиологической устойчивости к плесневению и картофельной болезни. Установлен рекомендуемый срок хранения полуфабриката в течение 30 суток при температуре 6±2 ℃. Показано, что использование полуфабриката оказывает положительное влияние на сохранение свежести в процессе хранения безглютенового хлеба за счет улучшения его структурно-механических свойств (сжимаемости, крошковатости) по сравнению с контролем. Выявлено, что использование полуфабриката длительного хранения способствует повышению микробиологической стойкости к плесневению и полностью инактивирует споры картофельной палочки. В результате проведенных исследований разработан полуфабрикат длительного хранения, позволяющий получить изделия с повышенными физико-химическими, органолептическими показателями качества и безопасностью для диетотерапии при целиакии.
Pharmacoeconomic analysis of personalized antiplatelet therapy in patients with acute coronary syndromer
Authors: Abdullaev M. A. , Kantemirova B. I. , Chernysheva E. N.
Published: March 2023

Relevance. The problem of antiplatelet therapy resistance is not fully solved, whereas its manifestations in the form of stent thrombosis cause a negative contribution in treatment and can lead to significant economic damage to the healthcare system. Pharmacogenetic testing as a personalization tool can potentially reduce the cost of treatment, which requires pharmacoeconomic research of pharmacogenetic methods. The aim of this study was a pharmacoeconomic evaluation of the pharmacogenetic testing implementation before the antiplatelet therapy in patients with acute coronary syndrome after percutaneous coronary intervention. Methods. In our study, a decision tree model was built with a time horizon of 1 year and a cost-effectiveness analysis was performed for six compared treatment strategies in patients with acute coronary syndrome after stent implantation with and without genotyping for the drugs clopidogrel, ticagrelor and prasugrel. Results. A treatment strategy with pharmacogenetic testing and the choosing of prasugrel for slow and intermediate metabolizers was the most preferred with CER 35 577.40 rubles per 1 unit of effectiveness. The most expensive strategy was the “blind” use of ticagrelor for all patients. Conclusion. Based on the modeling results, it can be concluded that the implementation of pharmacogenetic testing before prescribing antiplatelet drugs in patients with acute coronary syndrome undergoing stenting can potentially reduce the incidence of adverse events such as stent thrombosis and reduce the overall cost of treatment.
THE CONCEPT OF A DIGITAL DUPLICATE OF A TEACHER AND A DIGITAL PORTRAIT OF A STUDENT IN A VIRTUAL COMPUTER LABORATORY ENVIRONMENT
Authors: Зорин Роман Анатольевич
Published: March 2023

В данной статье поднимаются проблемы эффективности обучения в условиях дистанционного образования и сложности взаимодействия с преподавателями, либо же полном отсутствии такого взаимодействия. Для решения этих проблем описывается концепция создания цифрового двойника преподавателя, цифрового портрета обучающегося и организации виртуальной образовательной среды для взаимодействия между участниками образовательного процесса.

This article raises the problems of the effectiveness of teaching in the conditions of distance education and the complexity of interaction with teachers, or the complete absence of such interaction. To solve these problems, the article describes the concept of creating a digital duplicate of a teacher, a digital portrait of a student and the organization of a virtual educational environment for interaction between participants in the educational process.
EFFECTIVENESS OF EXERCISE PROGRAM ON LOW BACK PAIN AMONG NURSES WORKING AT A MEDICAL COLLEGE HOSPITAL IN DHAKA, BANGLADESH
Authors:   Department Of Graduate Nursing, Banghabandhu Sheikh Mujib Medical University, Shahbag, Dhaka, Bangladesh, Akter Halima , Islam Md. Shariful ,   Department Of Adult And Elderly Health Nursing, National Institute Of Advanced Nursing Education and Research (NIANER), Mugda, Dhaka, Bangladesh, Akter Jotsna ,   Department Of Adult And Elderly Health Nursing, National Institute Of Advanced Nursing Education and Research (NIANER), Mugda, Dhaka, Bangladesh, Akter Khaleda ,   Department Of Psychiatric And Mental Health Nursing, National Institute Of Advanced Nursing Education and Research (NIANER), Mugda, Dhaka, Bangladesh
Published: March 2023

Background: Low Back pain (LBP) is one of the most thought-provoking health conditions among the health professionals, especially nurses and it is considered as a significant health problem around the world. The aim of this study was to examine the effectiveness of exercise programs to reduce LBP among nurses working at Mugda Medical College Hospital in Dhaka. Methods: A Quasi Experimental one group pre-posttest study design with 5 weeks’ exercise program and one week follow up session was used. A total of 60 nurses were conveniently recruited from Mugda Medical College Hospital. Data collection period was from January to March 2020. Nurses’ characteristics were described by using Socio-Demographic Questionnaire (SDQ) and their LBP status was examined by Nordic Musculoskeletal Questionnaire (NMQ) and 11 points of Verbal Rating Scale for pain (VRSP) assessment. Descriptive statistics such as frequency, percentage, mean and standard deviation was used to describe the demographic characteristics and LBP of nurses. Inferential statistics such as matched paired t-test and independent sample t-test were used to examine the relationship between the variables. Results: Finding shows that the mean pre-test LBP score of nurses was 5.40 (SD = 0.74) and post-test LBP score was 1.51 (SD = 1.27). The mean differences were 3.89 (SD = 0.53) which indicates significant difference between pre and post-test score. In matched paired t-test, it was found that there was a significant mean difference between pre and post-test of LBP (p< 0.001). Conclusion: There was a significant mean difference after exercise program among the nurses with LBP. It indicates that exercise program was effective to reduce LBP. This finding can be recommended to develop educational modules for nurses to provide appropriate care to the patients.
Efektifitas E-LKPD Kimia SMA/MA dengan Model Pembelajaran Berbasis Masalah Berkonteks Isu-isu Sosial Sains dalam Meningkatkan Literasi Sains Peserta Didik
Authors: Nikmatur Rohmaya  , I Nyoman Suardana  , I Nyoman Tika
Published: March 2023

Penelitian ini bertujuan untuk menguji efektivitas E-LKPD kimia SMA/MA dengan model pembelajaran berbasis masalah berkonteks isu-isu sosial sains dalam meningkatkan literasi sains peserta didik. Uji efektifitas produk E-LKPD menggunakan penelitian pra-ekperimen dengan rancangan one-group pretest-postest design. Uji ini dilaksanakan pada satu kelompok yang diberikan prestest di awal pembelajaran dan posttest di akhir kegiatan pembelajaran. Penelitian dilaksanakan di MAN Buleleng pada semester ganjil tahun pelajaran 2022/2023. Penelitian ini menggunakan kelas XI IPA 1 yang berjumlah 31 peserta didik sebagai subjek penelitian. Instrumen penelitian berupa sepuluh soal tes literasi sains yang disusun berdasarkan indikator PISA 2018. Analisis data penelitian menggunakan analisis deskriptif yang menyajikan deskripsi skor rata-rata (mean), sebaran frekuensi, N-gain skor ternormalisasi, dan standar deviasi tes literasi sains peserta didik yang diperoleh dari hasil pretest dan posttest. E-LKPD kimia SMA/MA dengan model pembelajaran berbasis masalah berkonteks isu-isu sosial sains efektif dalam meningkatkan literasi sains peserta didik. Hasil N-gain score ternormalisasi yang diperoleh sebesr 0,54 sehingga termasuk dalam kategori sedang. Peserta didik yang mencapai lebih dari 75%.
Analisis Kebutuhan Awal: Inovasi Five-Tier Diagnostic Test untuk Mengidentifikasi Miskonsepsi pada Materi Elastisitas dan Hukum Hooke
Authors: Dea Alifia Fitri  , Maison Maison , Dwi Agus Kurniawan
Published: March 2023

Penelitian ini bertujuan untuk mengetahui kebutuhan guru dalam melakukan identifikasi miskonsepsi pada siswa. Pada penelitian ini yang dilakukan adalah dengan studi literature untuk mengetahui kebutuhan dalam mengembangkan inovasi baru mengenai five-tier diagnostic test. Adapun intrument pengumpulan data yang digunakan pada penelitian ini adalah dengan melakukan wawancara tidak terstruktur dengan banyak 7 butir pertanyaan terkait study kasus. Populasi yang diambil yaitu guru fisika SMA Islam Al-Falah Kota Jambi. Sampel penelitian salah satu guru fisika SMA Islam Al-Falah Kota Jambi melalui teknik pengambilan sampel menggunakan Teknik Purposive Sampling. Berdasrkan hasil penelitian yang telah dilakukan dapat diambil kesimpulan bahwa, miskonsepsi harus segera diidentifikasi. Namun banyak guru yang belum melakukannya karena sulitnya membuat instrument penilaian dan menganalisis hasil penilaian secara manual. Sehingga segera mungkin perlu adanya pengembangan instrument five-tier diagnostic test berbasis website yang diharapkan dapat membantu guru untuk dapat menemukan miskonsepsi pada siswa.
Can Remote Sensing and Artificial Intelligence Based Technologies Benefit Modern Agriculture and Food Production Systems?
Authors: Biswas Abhijit
Published: March 2023

The ever-changing climate coupled with increasing demand for more land and water resources along with the threats of global pandemic have put a lot of pressure on modern agriculture and food production systems. It is critical to maintain environmental and economic sustainability of current and future food supply systems in order to secure enough food to feed and sustain a fast-growing global population. To this end, new innovations in scientific and technological advances are thought to be essential to gain insights into the interaction of various components of the agricultural system ranging from the cell to the field level. There have been advances in genetic tools that have enabled superior food production. However, the large-scale assessment of crop status in the field still remains a formidable challenge. Recent innovations in remote sensing and Artificial Intelligence (AI) based agriculture and food production have shown a lot promise in quantifying field scale phenotypic information accurately. In addition, studies have suggested the possibility to integrate the big data into predictive and prescriptive management tools. In this opinion, we have assessed the use of remote sensing and AI technologies that could potentially improve the resilience of agricultural systems and help address the agricultural and human nutrition challenges over the next decades.
KONCEPCIJSKA STUDIJA U REFERENTNOJ ELEKTRANI RKW
Authors: Vladimir Dokmanović
Published: March 2023

U članku je sažeto prikazana koncepcijska studija referentne termoelektrane bruto snage 600 MW, neto stupnja djelovanja oko 46%. Prikazana je tehničko-ekonomski i ekološki optiminirana elektrana za uvjete njemačke zemlje Nordrhein-Westfalen. Referentna elektrana je koncipirana na temelju razvoja potrošnje električne energije i cijene energenata.
POOPĆENJE PROPAGACIJSKIH MODELA ZASNOVANIH U VREMENSKOJ DOMENI ZA PLC MREŽE
Authors: Dubravko Sabolić
Published: March 2023

U radu se generalizira propagacijski model za PLC mreže, odnosno, razvija se matematički algoritam za prebrojavanje modova širenja u složenim mrežama. Utvrđuju se također i asimptotska svojstva vremenskog odziva svih razdjelnih mreža. Zaključuje se da propagacijski modeli utemeljeni u vremenskoj domeni, primijenjeni na realne (složene) mreže, zahtijevaju suviše računalnog napora, odnosno, da je bolje problemu pristupiti u frekvencijskoj domeni.
PRÁTICAS METODOLÓGICAS E TECNOLOGIAS DIGITAIS UTILIZADAS PELOS PROFESSORES DE ENSINO FUNDAMENTAL EM TEMPOS DE PANDEMIA
Authors: Figueiredo D.G , Rivemales M.C.C. , Praxedes M.F.S.
Published: March 2023

A partir da interrupção das atividades escolares presenciais em decorrência da pandemia COVID-19, objetiva-se nesse artigo refletir sobre as principais ferramentas digitais utilizadas pelos professores do ensino fundamental em tempos de pandemia a partir de uma revisão narrativa de literatura. Justifica-se a necessidade desse estudo na busca de resultados da integração das ferramentas digitais, bem como o uso dessas tecnologias digitais colaborou para o aprimoramento das competências e participação ativa dos discentes, relatando experiências pedagógicas de docentes, adaptadas para o ensino remoto. Para sistematização dos dados pesquisados foram identificados, explorados e sintetizados de forma narrativa com a tabulação dos resultados dos estudos incluídos, sendo estes conduzidos a partir da análise descritiva. Os resultados evidenciam que as Tecnologias Digitais da Informação e Comunicação (TDIC) enriquece e fortalece o processo de ensino e aprendizagem proporcionando aos docentes e discentes diferentes possibilidades de ensinar, aprender e construir conhecimentos.
Ethanolic Mangifera Indica Leaves Extract as Green Corrosion Inhibitor
Authors: Rihashni Thivagaran  , Nurjannah Salim  , Nurul Huda Abu Bakar
Published: March 2023

Mangifera indica (MI) or mango leaf as a green corrosion inhibitor for copper has been studied. The MI was extracted in ethanol solvent and prepared at different concentrations of 0, 0.4, 0.6 and 0.8 mg/ml in 1 M HCl solutions to imitate the corrosive environment. The as-prepared MI extract analyzed by UV-Vis Spectrophotometer shows a shoulder peak at about 370 nm, resulting from the π → π* and n → π* electronic transition of aromatic C=C and carbonyl (C=O) functional groups. A Fourier transform infrared spectroscopy (FTIR) found that the MI extract exhibits aromatic C=C, C=O groups of phenolic compounds, C-OH, and C-O stretching vibrations. The electrochemical impedance spectroscopy (EIS) and Tafel plot analysis evaluate that the optimum corrosion inhibition of copper was achieved at 0.6 mg/ml concentration. The result is supported by a positive shift in the corrosion potential, Ecorr, lower corrosion current, Icorr and corrosion rate (CR) at -0.233 V, 4.39 µA/cm2 and 0.05 mm/yr, respectively. The surface morphology of the copper substrate after the corrosion test evaluated using metallurgical microscopy shows tremendous corrosion inhibition due to the adsorption of the molecules from the MI extracts.
Application of Modular Fixture Interface in CAD Software for Jigs and Fixtures Design Teaching Aids
Authors: Roslan Awang  , Muhammad Alfi Syahmi Mohd Yusri  , Saiful Bahri Mohamed  , Norliana Yusof  , Nor Azimah Ismail
Published: March 2023

Jigs and Fixtures Design are (is) among the core subjects offered at the diploma and degree level of Manufacturing Technology programs. Each student is assigned to create a specific jig design in their assignment task. The scope of the assignments covers a range of processes starting from the generation of ideas, sketches, technical drawings and eds with the prototype development. However, in previous batches of students, they were struggling with the issue of limited equipment and prototype development skills which consequently affects the quality of prototype being produced. To overcome this problem, a modular has been developed using CAD software to help students applying the components that are ready to be used as a jig to hold the workpiece. Through this idea generation method, students just need to select the existing components to develop the jig. They can also use the modular to assist them in their presentation. The results obtained from the use of modular show that students are able to reduce the time taken in developing the jig and are able to visualize the final product based on the proposed ideas.
Retrofitting of a High-Rise Residential Building for Energy Efficiency with OTTV as an Assessment Tool
Authors: Yasser Arab  , Ahmad Sanusi Hassan  , Zeyad Amin Al-Absi  , Hussam Achour  , Boonsap Witchayangkoon  , Bushra Qanaa
Published: March 2023

Buildings account for nearly 50% of the total energy consumption. The use of air-conditioning is one of the major influencers to the high energy consumption in buildings. To tackle this high energy consumption, buildings are required to be more energy efficient. This study aimed to investigate the retrofitting of existing residential building for energy efficiency by using the Overall Thermal Transfer Value (OTTV) as an assessment tool. Various retrofitting measures were involved, including varying the colour of the opaque wall with different solar absorptivity, the U-value and shading coefficient of the Glazing system, and the type and projection of the external shading. The results showed that applying the retrofitting measures individually (i.e., using light colour with low solar absorptivity, replacing the glazing system to have lower shading coefficient and U-value, and the installation of external shading systems with low shading coefficient) can decrease the OTTV by 26% to 33.4%. However, combining these measures managed to decrease the OTTV by up to 75.6% (i.e., the OTTV decreased from 82.87 W/m² to 20.19 W/m²). This can improve the building energy efficiency as it contributes to less cooling load for the air-conditioned buildings, while it provides a better indoor environment in non-air-conditioned buildings.
Numerical Modeling and Analysis of a Horizontal Axis RM1 NACA-4415 Wind Turbine
Authors: Khurshid Alam  , Muhammad Iqbal  , Ahmed Al-Balushi  , Afzal Husain  , Afaq Ahmed  , Abdullah Al-Amrani  , Sakhi Jan  , Muhammad Amjad  , Saeed Badshah
Published: March 2023

Wind turbines are widely used for conversion of the wind power into mechanical energy. The failure of the blade during operation is a common phenomenon which can lead to the degradation of the power output. Modeling and analysis of wind turbine blade is critical for the design and safe and efficient operation. In this study, a one-way coupled Finite Element (FE) scale model of RM1 SAFL turbine is developed to simulate structural integrity and deformations in the blades. The study is primarily focusses on the strength and deformation of the blades under varying wind speeds ranging from 5 m/s to 30 m/s. The wind turbine blades were modelled from aluminum alloy and unidirectional carbon reinforced composite (epoxy carbon). The results obtained from numerical simulation demonstrated higher stresses and blade tip deformation in blades from composite compared to aluminum AL 6061 alloy. Maximum displacements were calculated at the tip of blades and were well under the threshold level. The maximum stress intensity was found in the center of the blades. On the basis of the current geometry, modal analysis of turbine blades was performed and benchmark cases for the dynamic response were investigated. The natural frequency for aluminum alloy was calculated to be almost three time higher than of composite material structure. The modal in case of composite material was approximately 35% of that obtained using aluminum alloy. This study suggests further analysis to predict surface integrity of the turbine blades under more volatile wind conditions
Boundary Layer Flow of Williamson Hybrid Ferrofluid over A Permeable Stretching Sheet with Thermal Radiation Effects
Authors: Wan Muhammad Hilmi Wan Rosli  , Muhammad Khairul Anuar Mohamed  , Norhafizah Md Sarif  , Nurul Farahain Mohammad  , Siti Khuzaimah Soid
Published: March 2023

This research investigated the convective boundary layer flow and heat transfer of Williamson hybrid ferrofluid over a permeable stretching sheet with thermal radiation effects. Human blood is employed as a based fluid while magnetite (Fe3O4) and copper (Cu) are taken as the hybrid ferroparticle. The study started with transforming the non-linear partial differential equation system that governed the model to a more convenience non-linear dimensionless ordinary differential equations using the similarity transformation. The transformed equations obtained then are solved numerically using the Runge-Kutta-Fehlberg (RKF45) method in Maple software. The characteristics and effects of stretching parameter, permeability parameter, thermal radiation parameter as well as the ferroparticle volume fraction in the Williamson hybrid ferrofluid towards the temperature profiles, velocity profiles as well as the Nusselt number and the skin friction coefficient are analysed and discussed. The result of this research for various pertinent parameter varies differently. It can be concluded that the increase in magnetic parameter, the Williamson parameter, the stretching parameter, and the permeability rate parameter increase the skin friction and reduced the velocity profile. Furthermore, the increase in stretching parameter, thermal radiation parameter and the permeability rate results to the increase in the Nusselt number.
Compound Fault Diagnosis for Rotating Machinery: State-of-the-Art, Challenges, and Opportunities
Authors: Huang Ruyi , Xia Jingyan , Zhang Bin , Chen Zhuyun , Li Weihua
Published: March 2023

Compound fault, as a primary failure leading to unexpected downtime of rotating machinery, dramatically increases the difficulty in fault diagnosis. To deal with the difficulty encountered in implementing compound fault diagnosis (CFD), researchers and engineers from industry and academia have made numerous significant breakthroughs in recent years. Admittedly, many systematic surveys focused on fault diagnosis have been conducted by reputable researchers. Nevertheless, previous review articles paid more attention to fault diagnosis with several single or independent faults, resulting in that there is still lacking a comprehensive survey on CFD. Therefore, to fulfill the above requirements, it is necessary to provide an in-depth overview of fault diagnosis methods or algorithms for compound faults of rotating machinery and uncover potential challenges or opportunities that would guide and inspire readers to devote their efforts to promoting fault diagnosis technology more effective and practical. Specifically, the backgrounds including the related definitions and a new taxonomy of CFD methods are detailed according to the way of implementing compound fault recognition. Then, the state-of-the-art applications of CFD are overviewed based on relevant publications in the past decades. Finally, the challenges and opportunities associated with implementing CFD are concluded and followed by a conclusion for ending this survey. We believe that this review article can provide a systematic guideline of CFD from different aspects for potential readers and seasoned researchers.
20 ans de transparence à Genève
Authors: Cottier Bertil , Flueckiger Pierre , Flueckiger Christian , Fontaine Anais , Hofmann David , Powell Julian , Sayegh Christine , Stoffel Martine , Vöchting Yann , von Wyss Bastien
Published: March 2023

Quelques années avant la Confédération, le canton de Genève s'est doté d'une loi sur la transparence, dont l'objectif consiste à favoriser la libre formation de l’opinion et la participation à la vie publique. La LIPAD a célébré ses 20 ans le 1er mars 2022. A l'occasion de cet anniversaire, le présent ouvrage revient sur l'historique du texte légal et l'application de ce dernier par la médiatrice, puis le Préposé cantonal. Les autres contributions ont trait à l'utilisation de la loi par les journalistes, le rapport avec le principe de la bonne foi, la protection des intérêts privés, l'accès aux archives publiques, l'accès aux examens scolaires, les principes de procédure, l'exemple fribourgeois et l'avenir de la transparence.
Greetings from the New Executive Editor
Authors: Baskwill Amanda
Published: March 2023

This editorial marks a change in the Edi-torial Board of the International Journal of Therapeutic Massage and Bodywork. The new Executive Editor/Editor-in-Chief, Dr. Amanda Baskwill, shares her gratitude for the outgoing journal leadership, an-nounces new Editorial Board staff, and identifies two initiatives for 2023.
Detection and description of four Vespa mandarinia (Hymenoptera, Vespidae) nests in western North America
Authors: Looney Chris , Carman Brant , Cena Jenni , Cichorz Cassie , Iyer Vikram , Orr Jessica , Roueché Nathan , Salp Karla , Serrano Jacqueline M. , Udo Landon , van Westendorp Paul , Wilson Telissa M. , Wojahn Rian , Spichiger Sven-Erik
Published: March 2023

Vespa mandarinia Smith 1852 is a semi-specialized predator of other social Hymenoptera and one of the two largest species of Vespa. Several individuals of this predatory wasp were detected in Canada and the United States in 2019, including an entire nest that was located and destroyed on Vancouver Island, British Columbia. The Washington State Department of Agriculture and the United States Department of Agriculture’s Animal and Plant Health Inspection Service have collaborated to survey Washington State for V. mandarinia since 2020, using traps staffed by agency personnel, collaborators from local governments and nongovernmental organizations, and the general public. Trap data and public reports were used to select sites for live-trapping or net surveys, and live hornets captured in these efforts were subsequently collected and fitted with radio tags to locate nests. The survey ultimately led to the discovery of a V. mandarinia nest in October 2020, and three nests in August and September 2021. All of the nests were located within in red alder trees (Alnus rubra), with one just above the ground in a standing dead tree, and the other three in cavities ~2 to 5 meters above the ground in living trees. The number of combs in each nest varied between four and ten, cells between 418 and 1,329, and total hornets per nest between 449 and 1,474 (including immature and mature stages). Together, the four nests indicate an incipient population of V. mandarinia in the Cascadia region, and ongoing action by local, state, provincial, and federal governments, and residents of both countries is required to avoid the establishment of this exotic species in the region.
Migraine pharmacology and brain ischemia
Authors: Mirzoyan Ruben S. , Gan’shina Tamara S. , Kurdyumov Ilya N. , Maslennikov Denis V. , Gnezdilova Anna V. , Gorbunov Alexander A. , Kurza Elena V. , Turilova Antonina I. , Kostochka Leonid M. , Mirzoyan Narine R.
Published: March 2023

Introduction: The aim of this review article was to analyze in details the mechanism of drugs’ effects in the treatment and prevention of a migraine attack, as well as to discuss the hypotheses of migraine pathogenesis.

Migraine attack treatment agents: The main agents for migraine attack treatment have an anti-nociceptive activity.

Agents for migraine preventive treatment: β-blocker propranolol also has anti-serotonin and analgesic activities, and most drugs used for the prophylactic treatment of migraine have a vasodilating activity.

Vascular hypothesis of migraine pathogenesis: Despite numerous studies that have expanded our understanding of migraine pathogenesis, the importance of the vascular component in the pathogenesis of this disease has not questioned yet.

Neurogenic hypotheses of cortical spreading depression: It is necessary to take into account the points of this hypothesis in the context of the pathophysiology of migraine.

Neurochemical serotonin hypotheses of migraine pathogenesis: Serotonin plays an important role in the pathogenesis of migraine.

Trigemino-vascular hypotheses of migraine pathogenesis: The trigemino-vascular hypothesis claims to solve the problem of migraine pain.

Migraine and ischemic brain damage: Migraine is a risk factor for ischemic stroke and cognitive disorders.

Search for the new anti-ischemic anti-migraine preparations: A methodology for the search for new anti-ischemic anti-serotonin drugs for the treatment of migraine is proposed.

Conclusion: Belonging of a drug to one or another pharmacological group does not always correspond to its therapeutic effect on the pathogenetic processes of migraine. Migraine with its variety of forms cannot fit only one of the proposed hypotheses on the pathogenesis of this disease.
Closing the gap – producing black soldier fly larvae on aquaculture side streams
Authors: Liland N.S. , Sørensen M. , Belghit I. , Willora F. Perera , Torrissen A. , Torrissen O.
Published: March 2023

The aim of the study was to investigate if black soldier fly (Hermetia illucens) larvae can be grown on sludge from a salmonid fresh-water recirculating aquaculture system facility in a small pilot-scale trial. The growth and transfer of both nutrients and unwanted components from the sludge to the insect larvae was analysed. A commercial chicken feed was used as a control growth substrate and up to 100% of the chicken feed was replaced with aquaculture sludge. Replacing 40% of the chicken feed with aquaculture sludge did not influence the growth of the larvae. A gradual decrease in growth was, however seen at a sludge inclusion of higher than 40%. Proximate (crude protein and fat, dry matter) and amino acid composition of the larvae stayed stable across treatments, while ash content increased with higher sludge inclusion. An accumulation of elements such as Zn, Fe and Se was observed in the larvae with increasing amount of sludge in the growth substrate. The larvae also accumulated unwanted elements regulated by EU feed legislation such as As, Hg and Cd. Both As and Hg in the larvae exceeded the legal EU limits for feed ingredients, but only in the two highest levels of sludge inclusion (80 and 100% sludge). Fatty acid composition reflected the substrate, with the sludge-fed larvae being enriched in marine n-3 poly unsaturated fatty acids. No salmon pathogens were detected in the larvae. The trial showed that it is possible to grow black soldier fly larvae on aquaculture sludge but points at a few feed safety risk factors which need to be further elucidated before a use of sludge as growth material for insects can be considered.
Direct quaternion method-based stability criteria for quaternion-valued Takagi-Sugeno fuzzy BAM delayed neural networks using quaternion-valued Wirtinger-based integral inequality
Authors: Sriraman R. , Vignesh P. , Amritha V. C. , Rachakit G. , Balaji Prasanalakshmi
Published: March 2023

This paper investigates the global asymptotic stability problem for a class of quaternion-valued Takagi-Sugeno fuzzy BAM neural networks with time-varying delays. By applying Takagi-Sugeno fuzzy models, we first consider a general form of quaternion-valued Takagi-Sugeno fuzzy BAM neural networks with time-varying delays. Then, we apply the Cauchy-Schwarz algorithm and homeomorphism principle to obtain sufficient conditions for the existence and uniqueness of the equilibrium point. By utilizing suitable Lyapunov-Krasovskii functionals and newly developed quaternion-valued Wirtinger-based integral inequality, some sufficient criteria are obtained to guarantee the global asymptotic stability of the considered networks. Further, the results of this paper are presented in the form of quaternion-valued linear matrix inequalities, which can be solved using the MATLAB YALMIP toolbox. Two numerical examples are presented with their simulations to demonstrate the validity of the theoretical analysis.
Physician empathy in Korean clinical contexts: developing a conceptual framework and exploring influencing factors
Authors: Kim Su Hyun , Lee Young-Mee
Published: March 2023

Purpose: Despite its well-known clinical importance, physician empathy (PE) has been variably defined and its concepts among cultures are yet to be studied. This study aimed to develop a conceptual framework of PE and explore influencing factors on physicians’ empathetic behavior in the Korean clinical context.Methods: Forty-two faculty members and 67 residents participated in the two-round Delphi survey to arrive at a consensus regarding the conceptual framework of PE in 2019. To explore individual and external factors affecting physicians’ empathetic behavior, a Likert scale questionnaire based on an initial free-text response was administered to the same participants.Results: The conceptual framework of PE among Korean doctors consisted of basic communication skills and attitudes, cognitively understanding of patients’ thoughts and emotions, and communicating the doctors’ understandings to patients. Individual attributes and system- and patient-factors were revealed as influencing factors for PE in real practice. The former included communication ability, self-awareness and management, humanism, clinical competence, and good personality traits. Excessive workload, time constraints, aggressive attitudes, and negative preconceptions towards doctors were perceived as inhibiting or hindering empathy in patient care.Conclusion: PE in the Korean clinical context comprised behavioral and cognitive components. Individual attributes, as well as external factors including system- and patient-factors were identified to affect PE in clinical settings. Further studies are needed to enhance the conceptual clarity of PE and identify how to promote doctors’ empathetic practice even in less favorable healthcare environments.
Investigating medical students’ satisfaction towards video-based learning versus face-to-face lectures: a Jordanian tertiary teaching hospital experience
Authors: Ashour Omar , Alkhatib Ahmad Muneer , Zureikat Qusai Al , Al-Shaikhli Mustafa , Ata Basel Bani , Massad Talal , Al-Huneidy Leen , Al-Sabbagh Mohammed Qussay , Al-Ani Abdallah
Published: March 2023

Purpose: We aimed to evaluate the disparity between video-based learning and lecture-based learning on Jordanian medical students’ satisfaction.Methods: We conducted this cross-sectional study using a web-based questionnaire adapted from Student Evaluation of Educational Quality survey. Using convenience sampling, medical students studying at the University of Jordan and Jordan University Hospital were recruited. Participants in either clinical or basic-science years that have completed the entire survey were included in the final analysis.Results: We surveyed a total 487 participants among which male to female ratio was 1.19:1. Participants perceived greater benefit in terms of learning, instructor enthusiasm, content organization, breadth of teaching, and quality and number of assignments when using video-based learning (all p<0.01). In contrast, face-to-face learning was associated with significantly higher benefits in terms of group interactions (p<0.01) and capacity for rapport building (p<0.01). There was no significant difference in perceived examination performance between the two learning modalities (p=0.11).Conclusion: Video-based learning is the preferred learning modality among Jordanian medical students. Despite its dominance across multiple domains, it should be implemented as an adjunct to traditional classroom teaching for it is vital in the development of good communication skills and building rapport in medical students.
Self-determined motivation and associated factors among health professions students in distance learning: a cross-sectional study in Morocco
Authors: Naciri Aziz , Radid Mohamed , Sine Hasnaa , Kharbach Ahmed , Chemsi Ghizlane
Published: March 2023

Purpose: Learning motivation is an important factor in the teaching learning process in a digital environment. This study aims to examine self-determined motivation levels and associated factors among health professions students in distance learning activities.Methods: A cross-sectional, analytical, quantitative, multicenter study was conducted among health professions students from February 15, 2022, to July 31, 2022. Students’ self-determined motivation was assessed using a self-administered instrument. It consisted of 16 items categorized into four dimensions: intrinsic motivation, external regulation, identified regulation, and amotivation. It was based on 7-point Likert scale, ranging from 1 (strongly disagree) to 7 (strongly agree). Student engagement was examined using 15 items classified into the following subscales: behavioral, emotional, and cognitive engagement. A correlation between student motivation and engagement was performed. Univariate and multivariate logistic regression analyses were used to identify factors associated with students’ self-determined motivation in distance learning activities.Results: Of 1,121 students invited to the study, 1,061 valid questionnaires were received, giving a response rate of 94.6%; 595 participants (56.1%) were self-determined in distance pedagogical activities. Multiple regression analysis showed that ethnicity (adjusted odds ratio [aOR], 0.25; 95% confidence interval [CI], 0.08–0.73; p=0.012), educational level (aOR, 1.65; 95% CI, 1.16–2.34; p=0.005), distance learning environment (aOR, 1.65; 95% CI, 1.19–2.29; p=0.003), and student engagement: (aOR, 2.9; 95% CI, 2.21–3.80; p<0.001) were the significant factors associated with students’ self-determined motivation in distance learning.Conclusion: This study predicted some factors influencing students’ self-determined motivation. Health professions teachers need to be encouraged to adopt effective pedagogical practices in order to maintain and develop student motivation.