bluuebunny/crossref_metadata_2025 huggingface dataset:
Digital Innovation: Teaching Materials with Clean Air for Health Theme for Fifth Grade Elementary School
Authors: Rati Ni Wayan , Agustiana I Gusti Ayu Tri , Anggreni Ni Made Dyan
Published: August 2024

Teaching materials are supporting factors that must exist in learning. One solution that teachers can do to support independent learning activities by students is to provide digital teaching materials that can be used by students anytime and anywhere. This research is development research, which aims to develop digital teaching materials for fifth grade elementary school students. Development research is using the 4D development model (Define, Design, Develop, Disseminate). The data collection method used in this study is a questionnaire or questionnaire method. Product trials were carried out through the assessment of experts and practitioners (3 experts and 2 practitioners) to determine the validity of the teaching materials developed. In addition to testing the validity, trials were also carried out in small groups to find out the practicality of the teaching materials being developed. Data analysis used two analytical techniques (combination method), namely descriptive and inferential data analysis techniques. The results showed that the teaching materials developed were in the category of very high validity and based on the responses from users, both teachers and students regarding practicality, that the teaching materials developed were in the very practical category.
E-learning Innovation for Generation Z in Higher Education
Authors: Susarno Lamijan Hadi , Dewi Utari , Khotimah Khusnul , Sumarno Alim , Kristanto Andi , Pramana Atan , Pradana Hirnanda Dimas
Published: August 2024

Research into the development of online learning for the OBE Photo Media Development course to support the implementation of independent campus learning, which the Indonesian Minister of Education and Culture has proclaimed. The purpose of this research is to develop online teaching materials for RPS-based OBE photo media development courses. This development uses the ADDIE development model. Development stages include Analysis, Design, Development, Implementation, and Evaluation. This development produces Online Teaching Materials for the Photo Media Development course that meet the rules and regulations of OBE lesson plan-based teaching materials. The subject of this research is a student of the Education Technology study program of Universitas Negeri Surabaya. Data analysis using interview and questionnaire methods. From the results of the product, validation was carried out by learning design experts, material experts, and media experts to determine the suitability of OBE lesson plan online teaching materials. The results of this research show that after carrying out a feasibility test, the test results obtained by media experts were 91.67% and material experts were 100%. The results of subject tests on Curriculum and Educational Technology students were taken from individual and small group trials. Three students in personal practices and small group trials by six students obtained respective results of 90% and 95%. The feasibility test results show that the online teaching materials based on the OBE lesson plan in the Photo Media Development course are declared feasible.
Validation Instruments for Local Culture-Based Learning Media
Authors: Laksana Dek Ngurah Laba
Published: August 2024

A tool for evaluating the media's quality is necessary for it to be an effective learning medium. Thus, the creation of educational media is essential, particularly those that are rooted in the local way of life. The aim of this research is to generate validation instruments for learning media products based on design and media aspects, particularly for culturally based learning media, that exhibit both validity and reliability. The 3D research and development model (define, design, develop) is used in this study. Three specialists who act as instrument validators make up the data sources. A questionnaire in the form of an assessment sheet for media and instructional design tools is used as part of the data gathering method. Tests for reliability and validity are two types of data analysis approaches. A descriptive analysis is then performed on the gathered data. The research yielded 15 statements that will serve as expert design evaluation instruments and 10 statements that will serve as expert instructional media assessment instruments. Expert assessments show that the assessment tools for instructional media and design are applicable for application. Furthermore, both instruments have strong empirical validity. It is anticipated that the findings of this study will advance knowledge, particularly in the area of developing tools for evaluating specialists in media and instructional design.
Smart Apps Creator Media to Increase Self-Awareness Career Advanced Study for Twelve-Grade Students of State High School
Authors: Setyaningsih Endah , Asrowi  , Sudiyanto
Published: August 2024

Self-awareness is considered as the ability to recognize oneself. Lack of self-awareness causes a lack of personal information such as strengths and weaknesses, making it difficult to make career decisions. This research aims to develop ESDILA as a Smart Apps Creator (SAC) media to increase career self-awareness for further studies for class XII students at Karangpandan State High School. This type of research is research and development (R&D), using the 3-phase Alessi and Trollip Instructional System Design model procedure. 202 class XII students taken by random sampling participated in the research. The data in this research are alpha test, beta test, and product effectiveness. The data analysis used during development was Aiken's V coefficient for alpha test analysis, descriptive percentages for beta test analysis, as well as independent t-test, paired t-test, and Cohen's d for product effectiveness analysis. The research results show: 1) Expert evaluation in the alpha test shows that ESDILA is accepted; 2) The usability test in the beta test shows that ESDILA meets the usability criteria in the good category; 3) Compared to conventional counseling, ESDILA has been proven to be effective in increasing career self-awareness for further study for class XII students at Karangpandan State High School. So it is concluded that ESDILA is accepted, meets good usability criteria, and can increase students' career self-awareness so that students are able to recognize themselves and are ready to make career decisions for further study.
Gambaran Pengetahuan, Sikap Tentang Rokok, dan Status Perokok pada Siswa Sekolah Menengah Pertama Negeri 1 Tanjungsari Kabupaten Sumedang
Authors: Nurjannah Dewi , Oktavia Hidayati Nur , Shalahuddin Iwan
Published: August 2024

Pendahuluan: Kelompok remaja sangat rentan terhadap tingginya rasa keingintahuan dalam mencari identitas dirinya sehingga mudah terpengaruhi oleh lingkungan sosial. Terbentuknya perilaku merokok pada remaja dipengaruhi oleh berbagai macam faktor. Tujuan penelitian ini untuk menggambarkan faktor yang berkontribusi pada perilaku merokok murid SMP. Metode: Deskriptif kuantitatif dengan pendekatan cross sectional yang melibatkan 290 murid SMP N 1 Tanjungsari Kabupaten Sumedang dengan teknik stratified random sampling. Pengumpulan data menggunakan kuesioner yang telah diuji kelayakannya. Analisis yang digunakan univariat dan deskriptif. Hasil: 58,6% remaja memiliki pengetahuan yang cukup, 99% remaja memiliki sikap yang baik, 84,4% remaja merokok karena faktor orang tua, 94,8% remaja merokok karena faktor teman sebaya, dan 75,5% remaja merokok karena faktor iklan rokok. Simpulan: Bahwa faktor pengetahuan, dan sikap murid SMPN 1 Tanjungsari berada pada kategori cukup dan baik, tetapi masih memiliki perilaku merokok dan faktor orang tua yang memiliki kebiasaan meroko mempengaruhi pada anaknya
Reflective Study of Information Technology Utilization in Maternal Anemia Prevention Programs
Authors: Salsabilla alamsyah Shania , Fajrul Falah Yanuar , Arum Dwi Puspita Sari Ananda , Ayu Sekar Arum Sari Nur , Arifah Izzatul
Published: August 2024

Introduction: Anemia is one of the country's top health concerns that must be addressed immediately. The use of information technology (IT) in anemia prevention programs has received little attention in Indonesia. The purpose of the study was to reflect on the experience and consider the limitations and challenges encountered by the team while conducting an IT-based maternal anemia prevention program in Puskesmas Sangkrah, Surakarta. Method: this study was a qualitative study using a case study approach. The data collection methods were reflective writing and interviews. Data validity is achieved through the triangulation of data sources. Content analysis is being used to analyze data. Results: for health providers and participants of the program, it is a new challenging experience of online educational sessions. However, some obstacles and challenges are felt, including the lack of enthusiasm of participants during online education sessions, the lack of engagement between managers and participants in implementing online education compared to offline, and technical constraints from the application. Conclusion: the utilization of information technology in the maternal anemia prevention program has produced positive results, but there are still challenges that can be overcome if the approach is applied to other health programs.
Efektivitas Kombinasi Ekstrak Bunga Kecombrang (Etlingera elatior) Dan Ekstrak Jahe (Zingiber officinale) Terhadap Penurunan Glukosa Darah Pada Mencit Jantan Yang Diinduksi Aloksan
Authors: Aritonang Yasinta , Meka Faizal Farabi  , Dini Puspodewi
Published: August 2024

Pendahuluan: Bunga kecombrang dapat menurunkan glukosa darah dengan mekanisme menghambat enzim pencernaan karbohidrat pada usus halus. Jahe memiliki kandungan gingerol dan shogaol yang mampu menaikkan produksi insulin. Metode: Penelitian ini bersifat eksperimental, hewan uji diinduksi aloksan dosis 150 mg/kg BB secara intraperitoneal. Kombinasi ekstrak bunga kecombrang dan ekstrak jahe diberikan dalam besaran dosis 50 mg/kg BB, 75 mg/kg BB, dan 100 mg/kg BB. Data yang diperoleh diolah secara statistik menggunakan uji Kruskal-Wallis dan Mann-Whitney. Hasil: Hasil uji statistik menunjukkan kelompok dosis berbeda signifikan dengan kelompok kontrol negatif (p<0,05) dan tidak berbeda signifikan dengan kelompok kontrol positif (p>0,05). Penurunan glukosa darah tertinggi terjadi pada kelompok dosis 100 mg/kg BB (59,52%). Simpulan: Kombinasi ekstrak bunga kecombrang dan ekstrak jahe mampu menurunkan glukosa darah pada mencit jantan yang diinduksi aloksan.
Determinan Kejadian Gizi Lebih Pada Remaja di Sma Kesatrian 1 Kota Semarang
Authors: Aulia Kartika Ivane , Budiono Irwan
Published: August 2024

Pendahuluan: Gizi lebih merupakan suatu permasalahan gizi di dunia yang masih menjadi fokus perhatian dan belum terselesaikan hingga saat ini. Secara umum, seseorang dengan status gizi lebih dapat disebabkan karena multifaktoral meliputi faktor genetik dan lingkungan. Berdasarkan hasil studi pendahuluan yang telah dilakukan pada 65 remaja usia 16 – 18 tahun di SMA Kesatrian 1 Semarang pada bulan Maret tahun 2023 didapatkan 30 remaja memiliki status gizi lebih dengan persentase 47%. Penelitian ini bertujuan untuk menganalisis determinan kejadian gizi lebih pada remaja di SMA Kesatrian 1 Kota Semarang. Metode: Jenis penelitian ini merupakan observasional analitik dengan rancangan cross sectional. Sampel yang ditetapkan yaitu 146 orang dengan teknik simple random sampling. Analisis data dilakukan menggunakan uji chi-square dan regresi logistik untuk uji multivariat. Penelitian di lakukan di SMA Kesatrian 1 Semarang pada bulan Mei – Juni 2023. Hasil: Penelitian ini menunjukkan bahwa terdapat tiga variabel yang berhubungan dengan kejadian gizi lebih yaitu tingkat kecukupan energi (p-value=0.002), tingkat kecukupan protein (p-value=0.005), tingkat kecukupan lemak (p-value=0.003), tingkat kecukupan karbohidrat (p-value=0.002), frekuensi konsumsi junk food (p-value 0.001) dan aktivitas fisik (p-value=0.005). Terdapat satu variabel yang tidak berhubungan dalam penelitian ini yaitu kebiasaan sarapan (p-value=0.623). Simpulan: Variabel yang paling dominan untuk menduga kejadian gizi lebih pada remaja adalah frekuensi konsumsi junk food. Hal tersebut dikarenakan variabel frekuensi konsumsi junk food memiliki nilai OR=3.028 yang berarti berpotensi 3.028 kali lipat mengalami kejadian gizi lebih.
Analisis Multilevel Hubungan Ekologi Sekolah Terhadap Kepatuhan Konsumsi Tablet Tambah Darah Pelajar SMA Putri Kota Semarang
Authors: Lestari Rosalina Aulia , Handayani Oktia Woro Kasmini
Published: August 2024

Pendahuluan: World Health Organization (WHO) mencatat penyebab permasalahan kedua tertinggi yang ada di dunia disebabkan oleh anemia. Prevalensi remaja anemia di Indonesia berdasarkan data riskesdas tahun 2007, 2013, dan 2018 terlihat peningkatan dari tahun ke tahun. Faktor kontekstual sekolah dapat mempengaruhi anemia remaja serta kepatuhan konsumsi tablet tambah darah.  Penelitian ini bertujuan menganalisis hubungan ekologi sekolah terhadap kepatuhan konsumsi tablet tambah darah pada pelajar SMA putri di Kota Semarang pada tingkat individu dan tingkat sekolah. Metode: Jenis penelitian ini adalah penelitian kuantitatif dengan menggunakan metode cross sectional. Sampel yang ditetapkan yaitu 355 orang dengan teknik cluster random sampling. Penelitian dilaksanakan di 10 SMA yang tersebar di Kota Semarang pada bulan Mei-Juni 2023. Analisis data menggunakan analisis regresi logistik berganda melalui pendekatan multilevel. Hasil: Hasil penelitian menunjukan terdapat hubungan yang bermakna secara statistik antara pengetahuan (p-value=0.000), dukungan keluarga (p-value=0.000), dan dukungan guru (p-value=0.013), terhadap kepatuhan konsumsi tablet tambah darah remaja putri. Tidak terdapat hubungan bermakna secara statistik antara status ekonomi keluarga (p-value=0.064) dan pendidikan terakhir orang tua (p-value=0.652) terhadap kepatuhan konsumsi tablet tambah darah remaja putri. Varibel sekolah menunjukan adanya pengaruh kontekstual terhadap kepatuhan konsumsi tablet tambah darah (ICC=43.14%). Simpulan: Variabel yang paling dominan berhubungan terhadap kepatuhan konsumsi tablet tambah darah adalah pengetahuan (OR=3.54, p-value=0.000). Variabel sekolah sangat penting dan berpengaruh terhadap kepatuhan konsumsi tablet tambah darah.
Chinese White Dolphins in the Anthropocene: Human-animal Relations Among the Islands of the Pearl River Delta
Authors: Du Kejun , Liu Xiqin , Shi Tingyu , Zhong Shuneng
Published: August 2024

The Chinese white dolphin (Indo-Pacific humpback dolphin, Sousa chinensis) has become a symbol of China’s Pearl River Delta in the Anthropocene. However, little scholarly attention has been paid to its role in the region’s culture. This paper takes a human-animal relations approach to ask how and why this threatened species of dolphin rose to symbolic importance in a particular delta island geography within its vast range. The paper undertakes an exploratory literature review of historical and more recent texts concerning dolphins in China and more specifically Chinese white dolphins in the Pearl River Delta. These texts range from discussions of dolphin physiology, to religious associations with dolphins, to industrial-economic explorations, to illustrated children’s books, to postage stamps and amusement park exhibits. They combine to show that Anthropocene processes have produced the Chinese white dolphin as symbolic of Hong Kong’s reunification with China and ultimately for the cohesiveness of the Pearl River Delta crossborder region as a whole, even as these spatioeconomic developments have placed the species at risk.
The quality of indonesian brands of consumable cooking oils is reviewed by peroxide numbers and free fatty acid value
Authors: Anggarani Mirwa Adiprahara , Wikandari Prima Retno , Agustini Rudiana , Waskito Rusyariyanto , Fransiska Yuni
Published: August 2024

This study evaluated laboratory skills among the students during biochemistry practicum activities and built laboratory information for the internal and external community of Universitas Negeri Surabaya in 2024. The habit of reusing cooking oil for the main reason of saving costs can cause health problems. Parameters used to determine quality cooking oils include content-free fatty acids and number peroxide. The research purposes for this experiment are to know the rate of free fatty acids and the number of peroxides in Branded and out-of-stock cooking oil used for now. Determination of free fatty acids was done with the method of alkalimetry and the determination number of peroxide was done with the technique of iodometry. Result of the study This shows average rate of sour fat-free oil frying before frying is 0.22% And after frying becomes 0.40% or enhancement amounting to 185.98 %. The average level of number peroxide oil fried before frying is as big as 1.11 meq O2 /kg and after frying to 3.52 meq O2 /kg or enhancement as big as 317.25%. Average rate sour fat-free oil fry before frying No exceed standard SNI 7702: 2012, namely maximum 0.3%. However, the average level of free fatty acids in cooking oil after frying exceeds the SNI 7702:2012 standard, namely above 0.3%. Whereas the average rate number peroxide oil fry before and after frying does not exceed standard SNI 7709: 2012 which is a maximum of 10 meq O2 /kg.
K.-J. Hölkeskamp's Scientific Outlook on the Formation of the Roman Nobility
Authors: Roterme Liudmila R.
Published: August 2024

The article analyzes the German historian K.-J. Hölkeskamp's views on the formation of a new ruling class (“political” class by his definition) in Rome in the 4th - early 3rd centuries B.C. The researcher's scientific outlook relies foremost on the assumption that the surviving Roman historical tradition maintains an authentic core. K.-J. Hölkeskamp takes as a premise that the formation of the nobility was influenced by interconnected external and internal factors, with the former considered as playing the leading role. Nevertheless, he believes that both types of factors contributed to the integration of the new elite and perhaps the Roman civitas in general. Having distinguished the key phases in the formation of the new elite, K.-J. Hölkeskamp places special emphasis on the closing phase which he defined as the period of consolidation of the plebeian-patrician elite. That is why while agreeing with the traditional definition of the Roman nobility as noble servicemen notable for openness, K.-J. Hölkeskamp also highlights the class' cohesion, the capacity for compromise, interwoven with quite fierce competition for laurels and thereto related power and influence. To explain the peculiarities of the nobility, K.-J. Hölkeskamp introduces the concept of “meritocracy”, defining the Roman political system as “meritocratic”, which should also be viewed in the context of the debates on “Roman democracy” (this discussion is left unaddressed in this article though). To lay a foundation for some of his conclusions, the researcher turns to G. Simmel's conception of competition and P. Bourdieu's symbolic capital theory. K.-J. Hölkeskamp shows the formation of the nobility as the unity of the formal and informal sides of politics. The attention to the informal institutional aspects of politics, values, symbols, and commemorative practices inspired the researcher to study the republican political culture. He believes this research area to be quite promising in terms of understanding the political system of the Roman Republic and its ruling class.
Immigrants from the German Colonies in St. Petersburg: Ways to Achieve Success in F New Space
Authors: Cherkazyanova Irina V.
Published: August 2024

The successful development of the colonies under the capital inevitably led to an increase in landlessness and the departure of colonists to the capital to provide for their families. In the city, they mastered the most popular professions, some of them achieved significant success thanks to their personal qualities and the help of their fellow countrymen. The influence of the state on the life of the colonists and their settlement outside the community increased at the end of the 18th century and came to naught after the colonist reform in 1871.
“Now About Church Affairs”. Pavla P. Kartasheva's Letters to Evgenii I. Novitsky. 1949
Authors: Antoshchenko Aleksandr V.
Published: August 2024

There is first publication of the letters from the wife of the famous church, state and public figure A.V. Kartashev to a family friend, who had recently moved from France to the USA. The correspondence describes the complex relationships between priests who found themselves under the jurisdiction of the Constantinople and Moscow Patriarchates and the Russian Orthodox Church abroad, and characterizes the charitable activities of the Society for Aid to Russian Emigrants in France. The letters are stored in the Bakhmeteff Archive at Columbia University. When published, their text is brought into compliance with modern spelling standards, preceded by an introduction that provides information about the addressee and is accompanied by commentary.
“I Don't Know How We Survived...” (Review on: Zinovieva G.N. (comp.), Matveeva R.P. (ed.). Folk Stories about the Great Patriotic War and the Post-War Period, collection, Irkutsk, NLO Publ., 2022, 384 p.)
Authors: Shalamov Vladimir A.
Published: August 2024

The review considers the collection “Folk stories about the Great Patriotic War and the post-war period”. The stories were collected by members of the folklore expeditions of the Faculty of Philology of Irkutsk State University in the 1970s-2000s. The collection includes mini-memoirs of 194 residents of Eastern Siberia (mainly the Irkutsk region and the Trans-Baikal Territory). Memories are divided into separate episodes, which were distributed according to their meaning on certain topics. The stories depict such topics as seeing off soldiers to the front, the participation of Siberians in hostilities, soldiers in captivity, life in the territory occupied by the Germans, children of war, school during the war years, helping women in the rear, the first post-war years, immigrants in Transbaikalia, etc. The book creates the image of a Siberian front-line peasant and a Siberian woman who endured the hardest hardships of life and did not lose her traditional moral principles. The publication captures not only historical events, but also the emotions of people, moral guidelines and features of the language of the population. A lot of space is devoted to the material culture and life of the population, as well as ways of surviving people in extreme conditions (captivity, forced labor in Germany, hunger, shortages, excessive manual labor). The texts of the stories also contain valuable information about the attitude of the population to strict discipline, repression, traitors, moral decline, and the upbringing of the younger generation. The publication is intended for folklorists, literary critics, historians, ethnographers, artists, as well as a wide range of readers.
Local Projections
Authors:   Federal Reserve Bank of San Francisco, Jordà Òscar , Taylor Alan M. ,   Columbia University
Published: August 2024

A central question in applied research is to estimate the effect of an exogenous intervention or shock on an outcome. The intervention can affect the outcome and controls on impact and over time. Moreover, there can be subsequent feedback between outcomes, controls and the intervention. Many of these interactions can be untangled using local projections. This method’s simplicity makes it a convenient and versatile tool in the empiricist’s kit, one that is generalizable to complex settings. This article reviews the state-of-the art for the practitioner, discusses best practices and possible extensions of local projections methods, along with their limitations.
lugar de las aves en la subsistencia de las poblaciones humanas de la estepa en la Isla Grande de Tierra del Fuego durante el Holoceno (Argentina)
Authors: Santiago Fernando , Bártoli Valeria , Salemme Mónica
Published: August 2024

Los conjuntos avifaunísticos de cuatro sitios arqueológicos de la estepa del norte de la Isla Grande de Tierra del Fuego (Argentina) muestran diferencias entre las variables zooarqueológicas estudiadas. Se presentan datos tafonómicos y arqueológicos de aves registradas en RCH1, CHP3, LV1 y CP53; se comparan con otros conjuntos de la estepa y del ecotono insular para discutir cuáles fueron las especies más explotadas como alimento y el uso de huesos o plumas con fines tecnológicos durante el Holoceno medio y tardío, así como el rol de cada especie en las sociedades de la zona estudiada. En tres sitios las aves fueron un recurso complementario, pero en CP53 fueron el recurso más explotado. La importancia de las aves en la subsistencia se incrementa al sur del río Grande y en particular al sur del río Irigoyen. En términos cronológicos, no se observaron cambios en la explotación de aves durante el Holoceno.
Environmental and energy indicators in Latin America and the Caribbean: An evaluation from multivariate techniques on sustainability
Authors: Ruff Claudio , Gutiérrez Bastián , Shamaeva Ekaterina , Cornejo Cristian , Ruiz Marcelo , Matheu Alexis , Cortés Roberto , Dehnhardt Macarena
Published: August 2024

In the current context of concern about the environmental impacts of human activity, the focus on sustainable development and environmental impact assessment (EIA) has gained prominence. The Brundtland Commission highlights the importance of meeting present needs without compromising future ones, leading to international treaties and public policies to address the environmental crisis. Moreover, the Latin American and Caribbean Initiative for Sustainable Development (ILAC) seeks to promote sustainable development in key areas in Latin America and the Caribbean. Among them, energy efficiency and destination are crucial for sustainable use of energy resources and emission reduction. The aim of this article is to examine the evolution of variables and countries regarding installed capacity to produce electricity, renewable primary energy supply share, and fossil-fuel subsidies through Dynamic biplots and multivariate analyses. Trends in the increase of renewable energy production capacity are shown. In contrast, the correlation between the share of fossil fuel subsidies and the share of renewable primary energy supply presents a weak inverse relationship. Therefore, although progress has been made toward using cleaner energies and the consumption and subsidization of fossil fuels have decreased, some countries still depend significantly on non-renewable sources. It is concluded that even when environmental information presents challenges, analyzing indicators and conceptual models contributes to understanding environmental dynamics and progress toward sustainable development in the region, especially through creating and implementing public policies.
Bioecomedicine as a social determinant of the sustainable development of society
Authors: Khrystova Tеtіana , Pyurko Vladyslav , Pyurko Olga , Arabadzhy-Tipenko Liudmyla , Oleksenko Roman , Melnyk Svitlana , Protsenko Andrii , Gorna Oksana
Published: August 2024

The aim of the research is to elucidate the features of the modern model of bioecomedicine and its components as a social determinant of sustainable societal development. The theoretical-methodological basis of the work was the complex use of scientific principles and a systematic approach, which determined the choice of research methods: general scientific and interdisciplinary. The concept generalized content is substantiated and the main lines of building the bioecomedicine model are characterized from the standpoint of information-structural modeling and sustainable development. Based on the structural-logical imperative, the object, subject, basic method and main concepts of this science sphere are characterized. The bioecomedicine principal idea as a social determinant of the sustainable development within a single information space is the unification of the knowledge information field of biology, ecology and medicine based on the use of the latest achievements in information technologies. It is proven that the algorithm for achieving the bioecomedicine global goal in the form of a set of principles reflects the essence of a systemic approach to solving the tasks of sustainable societal development by ensuring the system-environmental homeostasis of humans and the ecosystems that surround them.
Pengaruh Kualitas Pelayanan Terhadap Keputusan Pembelian di ShopeeFood
Authors: Hidayat Herman , Augustinah Fedianty , Listyawati Liling
Published: August 2024

Penelitian ini bertujuan untuk menguji pengaruh kualitas pelayanan dan harga terhadap keputusan pembelian pada layanan ShopeeFood baik secara parsial ataupun simultan. Penelitian ini menggunakan metode survei yang melibatkan siswa-siswi SMA Unggulan Amanatul Ummah Surabaya sebagai responden yang berjumlah sebanyak 100 responden. Teknik analisis data yang digunakan adalah analisis regresi linier berganda. Teknik ini menggunakan sampling incidental dan selanjutnya data dianalisis ini menggunakan uji instrument, uji asumsi klasik, uji regresi linear berganda dan uji hipotesis.  Hasil penelitian menunjukkan bahwa secara parsial, kualitas pelayanan memiliki pengaruh negatif signifikan terhadap keputusan pembelian, sementara harga memiliki pengaruh positif signifikan. Secara simultan, kedua variabel tersebut berpengaruh signifikan terhadap keputusan pembelian dengan nilai Adjusted R Square sebesar 0,846, yang berarti 84,6% variasi keputusan pembelian dapat dijelaskan oleh kualitas pelayanan dan harga. Berdasarkan hasil tersebut, disarankan agar ShopeeFood terus meningkatkan kualitas pelayanannya dan menetapkan strategi harga yang kompetitif untuk menarik lebih banyak konsumen.
Thermal Control Coatings Flown on Low Earth Orbit Materials Experiments
Authors: Leeper Levi , Jones Kenneth , Finckenor Miria , McElderry Justin , Carrico Meghan
Published: August 2024

Coatings developed by AZ Technology were exposed to the space environment on two different platforms and analyzed for optical property changes. These coatings were primarily for passive thermal control, but electrostatic dissipative coatings and marker coatings were also flown. Some materials were flown on the Materials on International Space Station Experiment (MISSE) 15th and 16th flights, and some were flown on the Materials Exposure and Technology Innovation in Space (METIS) first flight. The MISSE and METIS flights were both in low Earth orbit but had very different results. Space environmental and molecular contamination effects on optical properties are reviewed. Future experiments, including the Regolith Adherence Characterization flight to the moon, are discussed.
Investigating Flow-Induced Vibration by Regarding the Alignment of Flow Modes and Structural Modes
Authors: Zhao XiaoJian , Zhao TianZe , Bi SiFeng , Yang DangGuo
Published: August 2024

In this work, a modal matching approach is developed to investigate the impact of the spatial correlation of wall pressure fluctuations on structural vibration and its role in suppressing flow-induced vibration in aircraft. The modal matching method defines the wavelength ratio between the convection wave and the flexural wave to capture the spatial characteristics of both the flow mode and the structural mode. In comparison to conventional methods such as the finite element method and analytical method, the proposed modal matching approach allows for obtaining the vibration response in the spatial–wavenumber domain. To validate the spatial correlation effect on structural vibrations obtained with the modal matching approach, a wind tunnel test was conducted to measure flow-induced vibrations. The calculated spatial–wavenumber data for flow-induced vibrations reveal that the crests and troughs of the vibration velocity alternate periodically as the wavelength of the wall pressure fluctuations changes. At the resonance frequency, a vibration velocity trough can be observed when the spatial correlation of wall pressure fluctuations aligns with the structural mode. Additionally, the concept of resonance independence of flow-induced vibrations is introduced to describe the phenomenon where the most severe structural vibration, determined by the matching value between the aerodynamic mode and the structural mode, does not always occur at the resonance frequency. The modal matching approach effectively suppresses structural vibration by utilizing the spatial correlation of wall pressure fluctuations, offering a new perspective on controlling flow-induced vibrations.
METHODOLOGY FOR QUANTITATIVE COMPARISON OF DIFFERENT NUCLEAR FUEL CYCLES BY THEIR SAFETY
Authors: Курындин А.В. , Шаповалов А.С. , Поляков Р.М. , Иванов К.В. , Хаперская А.В. , Суворова Е.В. , Белинский Л.Л.
Published: August 2024

В настоящей статье представлен анализ государственной политики по развитию ядерных топливных циклов, реализуемой в странах, активно использующих атомную энергию, в контексте ее ориентированности на реализацию открытого или замкнутого ядерного топливного цикла.Оценены мотивы, которыми руководствуются страны, активно использующие атомную энергию, при выборе того или иного варианта реализации ядерного топливного цикла, на основе чего сделан вывод, что аспекты безопасности не являлись преобладающими при выборе странами того или иного варианта развития ядерного топливного цикла.Показана актуальность задачи сравнения безопасности ядерных топливных циклов и выработки объективных численных критериев, на основе которых это сравнение должно проводиться.Также в статье представлен анализ подходов, рекомендованных международными организациями для использования в целях сравнения различных вариантов развития ядерных топливных циклов, отмечены их преимущества и недостатки с точки зрения применимости для сравнения безопасности ядерных топливных циклов.На основе выполненного анализа авторами предложена объединяющая преимущества рассмотренных подходов методология количественного сравнения безопасности различных вариантов реализации ядерных топливных циклов.

This article presents an analysis of national policies in the field of nuclear fuel cycles development, implemented in countries which widely utilize atomic energy. The analysis is focused on aspects of implementation of an open or closed nuclear fuel cycle.The article also characterizes motives that are guided by the countries, when choosing one or another option for the implementation of the nuclear fuel cycle. Based on the characteristics given it is concluded that safety aspects were not predominant when the countries choose one or another option for nuclear fuel cycle development.Importance of the comparison of nuclear fuel cycles by their inherent safety and the significance of the development of credible numerical criteria, based on which this comparison should be carried out, is shown in the article.The article also presents an analysis of the approaches which are recommended by international organizations (IAEA, UNSCEAR, ICRP, NEA OECD) for use in order to compare the different nuclear fuel cycles, and shows the advantages and disadvantages of the approaches in terms of applicability for such comparison.On the basis of the analysis performed and on the basis of combination of the advantages of the approaches which are considered, the authors have proposed the methodology for the quantitative comparison of nuclear fuel cycles, based on their safety characteristics.
THE ANALYSIS OF CHEMICAL-TECHNOLOGICAL PROCESSES SCALE FACTOR FOR FUEL CYCLE FACILITIES EXPLOSION INDEXES
Authors: Соколов И.П. , Понизов А.В. , Шарафутдинов Р.Б.
Published: August 2024

Статья посвящена проблеме учета масштабного фактора для обеспечения взрывобезопасности объектовядерного топливного цикла. Целью статьи была оценка степени влияния изменения диаметра технологического оборудования на показатели пожаровзрывоопасности технологических процессов с участием экзотермических реакций. Оценку проводили с использованием основных положений теории теплового взрыва.В статье приведены обстоятельства, вследствие которых необходимо учитывать масштабный фактор для обеспечения взрывобезопасности объектов ядерного топливного цикла, проведен анализ применимости критерия Франк-Каменецкого для оценки взрывобезопасности объектов ядерного топливного цикла. Рассмотрено влияниемасштабного фактора на температурные критерии самовоспламенения среды, а также на период индукцииэкзотермической реакции. Для модельной системы выполнены расчеты по определению зависимостей критической температуры от радиуса сосуда и адиабатического периода индукции от температуры. На основании полученных результатов предложены два типа диаграмм для определения совместного влияния параметров на критические условия самовоспламенения взрывоопасных сред; показано, что при увеличении масштаба технологического процесса следует ожидать снижение критической температуры возникновения теплового взрыва и увеличение периода индукции экзотермической реакции.

The paper dwells upon scale effect that should be factored into explosion safety arrangements at nuclear fuel cycle facilities.The study was undertaken to size the effect of changes in process equipment diameter on the fire and explosion hazards of technological processes involving exothermic reactions. The assessment was made using the key elements of the thermal explosion theory.The paper describes the circumstances that make it necessary to take into consideration the scale effect in order to assure the explosion safety of a nuclear fuel cycle facility. The authors examine the suitability of the Frank-Kamenetsky criterion for assessing explosion safety of nuclear fuel cycle facilities. The discussion covers the scale factor effect on the temperature criteria for the self-ignition of the environment and on the induction period of an exothermic reaction.Calculations have been performed for a model system to define the dependence of critical temperature on vessel radius and the dependence of adiabatic induction period on temperature.Two types of diagrams have been proposed based on the study findings to evaluate the combined effect of parameters on the conditions critical for the self-ignition of explosive environment. It is shown that as a plant process scales up, a thermal explosion may occur at a lower critical temperature, and the induction period of an exothermic reaction may become longer.
DEVELOPMENT AND APPLICATION OF NONDESTRUCTIVE MEASUREMENTS OF NUCLEAR MATERIALS IN DEPOSITIONS, AGGREGATIONS AND WASTES
Authors: Хорун А.А. , Семёнов М.А. , Галузин Д.Д. , Ромадова С.И.
Published: August 2024

В соответствии с федеральными нормами и правилами в области использования атомной энергии НП-030-19 «Основные правила учета и контроля ядерных материалов» «значения масс ядерных материалов (ЯМ) в технологических потерях, отложениях, накоплениях, а также погрешности этих значений должны быть определены на основании методик измерения или расчетных методик, действующих в организации». Представлены основополагающие принципы подхода, разработанного для построения и аттестации методик измерений массы ядерных материалов в отложениях в технологическом оборудовании (воздуховодах, трубопроводах), в накоплениях на фильтрах системы газоочистки, отходах производства гамма-спектрометрическим методом. Рассмотрены особенности построения и аттестации разработанных методик измерений, представлены результаты их внедрения на ФГУП «ПО «Маяк» и апробации данных методик на реальных объектах контроля.

In compliance with the Federal Rules and Regulations for the Use of Nuclear Energy NP-030-19, nuclear material weights in the in-process losses, deposits and accumulated stocks, as well as their errors are to be determined based on measurement procedures or computational techniques adopted by the organization. Fundamental principles of the approach applied for development and approval of the procedures for measurement of nuclear material weights with the use of a gamma-spectrometric method in deposits in the process equipment (air ducts, pipelines), in the materials accumulated on the filters of the gas-cleaning system and in the waste products are provided. Specific features of development and approval of these measurement procedures are described. The results of development and implementation of these procedures at FSUE “Mayak” PA are presented, outcomes of their testing at real items subject to monitoring are provided.
ON THE EVALUATION OF ABSORBED DOSE IN VITRIFIED HIGH LEVEL RADIOACTIVE WASTE WITH THE ACCOUNT OF REAL CAN GEOMETRY
Authors: Алой А.С. , Ковалёв Н.В. , Прокошин А.М. , Блохин А.И. , Блохин П.А. , Курындин А.В. , Понизов А.В. , Маковский С.В.
Published: August 2024

При переработке отработавшего ядерного топлива образуется существенное количество радиоактивных отходов, большая часть из которых подлежит локализации в стеклоподобном компаунде и последующему захоронению в геологических формациях. Одним из основных требований к компаунду отходов является его длительная радиационная стойкость под действием излучения от включенных в матрицу радионуклидов. Для подтверждения радиационной стойкости должна быть определена величина дозы, поглощаемой в объеме матрицы после момента остекловывания. В настоящей работе представлены результаты расчетного моделирования набора поглощенной дозы в высокоактивных отходах, остеклованных в боросиликатную матрицу, при их долговременном хранении и последующем захоронении.

A large amount of radioactive waste is produced during reprocessing of spent nuclear fuel. Most of this radioactive waste is subject to vitrification in glass-like compound and to subsequent deep geological disposal. One of the main requirements to radioactive waste compound is radiological stability under radiation of nuclides in waste for a long period of time.An amount of absorbed dose in compound volume shall be determined in order to justify radiological stability of radioactive waste. This article presents the results of absorbed dose calculation in radioactive waste in borsilicate glass matrix during long-term storage and subsequent disposal.
ON APPROACHES TO REGULATION OF ACCIDENT TOLERANT FUEL APPLICATION
Authors: Курындин А.В. , Киркин А.М. , Каримов А.З. , Маковский С.В.
Published: August 2024

В настоящее время в Российской Федерации и в мире ведется активная разработка и внедрение новых типов толерантного ядерного топлива, которое потенциально является более устойчивым к нарушениям нормальной эксплуатации, характерным для реакторов на тепловых нейтронах, в частности, к пароциркониевой реакции. Повышенная устойчивость толерантного ядерного топлива достигается за счет изменения оболочки твэлов или топливной матрицы. В ряде стран, включая Российскую Федерацию, уже осуществляются экспериментальные исследования свойств толерантного ядерного топлива на исследовательских ядерных установках и проводится опытно-промышленная эксплуатация отдельных твэлов такого типа на энергоблоках атомных станций. При этом внедрение толерантного ядерного топлива связано с изменением существующих технологий производства твэлов и тепловыделяющих сборок, а также изменением их конструкции, что требует выполнения соответствующего обоснования безопасности и оценки безопасности, проводимой органом регулирования безопасности при использовании атомной энергии. Однако, как в Российской Федерации, так и в других странах имеется весьма ограниченный опыт лицензирования применения толерантного ядерного топлива. В настоящей статье представлен обзорный анализ состояния внедрения толерантного ядерного топлива, а также рассмотрены возможные подходы к регулированию безопасности при внедрении ядерного топлива подобного типа.

Currently, active development and introduction of new types of accident tolerant fuel is ongoing in the Russian Federation and worldwide. This type of fuel is potentially more resistant to accident conditions, that are typical for thermal reactors and to the steam-zirconium reaction in particular. The increased stability of accident tolerant fuel is achieved by changing the fuel rods cladding or the fuel matrix. In a number of countries, including the Russian Federation, experimental studies of the accident tolerant fuel properties are already carried out at research facilities. Also pilot operation of individual fuel rods of a tolerant type is carried out at power units of nuclear power plants. At the same time the introduction of accident tolerant fuel is associated with a change in existing technologies of fuel rods and fuel assemblies production, as well as with a change in their design. This requires the implementation of an appropriate safety justification and a safety assessment, which is organized by the regulatory body. However the Russian Federation as well as other countries has only limited and insufficient experience in the field of licensing of accident tolerant fuel application. This article contains a brief review of accident tolerant fuel introduction process and presents some possible approaches to safety regulation of such fuel introduction.
Challenges of Absolute Binding Free Energies for Membrane Exposed Binding Pockets
Authors: Cook Charlie , Alibay Irfan , Anand Mouroug Nithishwer , Chudyk Ewa , Knegtel Ron , Biggin Philip
Published: August 2024

Absolute binding free energy (ABFE) calculations are finding increasing use within drug discovery programs, particularly as they can be performed on very different ligand scaffolds and direct comparisons made between them. They also have the potential to provide a route to target selectivity prediction. To date, most work has focused on soluble proteins, with relatively little focus on membrane proteins. Structural studies are increasingly revealing the presence of lipid-exposed allosteric binding sites on membrane proteins. The exposure to lipids rather than water is presumed to make ABFE calculations considerably more challenging. To investigate this and highlight other potential difficulties associated with such binding sites, we explored the performance of ABFE calculations on two G-protein-coupled receptor systems with lipid-exposed binding sites; the P2Y1 receptor and the GCGR receptor. We show that despite both proteins being GPCRs with lipid- exposed binding sites, the performance of ABFE calculations differs significantly. ABFE results for P2Y1R are in excellent agreement with experiment (mean absolute error (MAE) of 1.21 kcal/mol), but the results for GCGR were significantly poorer with the MAE 4.74 kcal/mol being the best we could achieve with current resources. Nevertheless, the GCGR system serves as an excellent vehicle to demonstrate the more problematic issues which can exist, including vastly different apo versus bound state, the presence of lipids solvating the apo state and sampling problems exacerbated by the lipid environment. We discuss how some of these aspects can be dealt with, while others will clearly require more work. We hope this work will help drive the community forward in tackling these problems.