bluuebunny/crossref_metadata_2025 huggingface dataset:
Research Progress of Constructing Anode Materials for Potassium Ion Batteries Based on Electrospinning Technology
Authors: Liu Zheng , Zhu Xingqun , Song Ming , Nauman Ali Rai , Tang Yingtao
Published: March 2023

Potassium offers the benefits of plentiful supplies, widespread availability, and inexpensive cost. Potassium-ion batteries (KIBs) are thought to be one of the best energy storage technologies to take the place of lithium-ion batteries in the future since potassium has a low electrode potential and rapid ion transport kinetics in the electrochemical system. As opposed to lithium-ion batteries, potassium-ion battery research is still in its early stages, and the system has issues with low capacity, inferior rate performance, and short cycle life. As a result, creating safe, dependable, and high-performance charge-discharge potassium-ion batteries still presents several difficulties. One of the main elements promoting the development of potassium-ion batteries is the development of anode materials for these batteries. At present, there are various methods for constructing potassium-ion battery anode materials, including hydrothermal method, solid phase reaction, electrospinning method, etc. The advancement of electrospinning and the creation of potassium-ion battery anode materials based on electrospinning are the main topics of this review article. This report also anticipates the direction of research and development for high-performance, low-cost anode materials.
Analysis and Enlightenment of Methane Emission Reduction Control in Oil and Gas Industry
Authors: Liang Yuan
Published: March 2023

Methane is the second largest greenhouse gas in the world after carbon dioxide. In order to cope with the warming impact of methane emissions on climate issues, major oil and gas producing countries in the world have implemented methane emission control policies, supervising technical norms, emission reduction performance or results, economic means and information management. Through comparative analysis, the current problems of methane emission reduction control in China's oil and gas industry are summarized, and the enlightenment and guidance suggestions for methane emission reduction control in Daqing oilfield are further proposed.
Decomposition and Classification of Carbon Star Spectra
Authors: Zhang Yuling , Wu Yadong
Published: March 2023

Automatic classification of stellar spectra is an important research component of astronomical data processing and is the basis for studying stellar evolution and parameter measurements. As a rare kind of stellar spectra, carbon star spectra put forward more efficient and accurate requirements for classification methods. The traditional manual classification methods have the disadvantages of slow speed and low accuracy, which can no longer meet the practical needs of automatic classification of massive stellar spectra, especially low signal-to-noise ratio stellar spectra, and machine learning algorithms have been widely applied to stellar spectral classification. A distinctive feature of stellar spectra is high data dimensionality, and dimensionality reduction can not only realize feature extraction, but also reduce the computational effort, which is the first task of spectral classification. Traditional linear dimensionality reduction methods such as principal component analysis reduce the spectra only based on the variance, and different types of spectra will appear crossover after projection into the low-dimensional feature space, while streamwise learning can produce excellent classification boundaries, which will avoid overlap and facilitate subsequent classification. In view of the high dimensionality of spectral data, we investigate the distribution of spectral data in high-dimensional space and the principle of dimensionality reduction of high-dimensional linear data by stream shape learning, compare the effect of two-dimensionality reduction methods, t - SNE and principal component analysis, on spectral data, and finally analyze the experimental results and compare and validate them using various machine learning classifiers. The algorithm is implemented using Python language and Scikit - learn third-party library to perform experiments on 1000 low signal-to-noise carbon star spectra from LAMOST, and finally achieve high accuracy automatic processing and classification of the spectral data. The experimental results show that for the dimensionality reduction processing of spectral data, the t - SNE method based on stream shape learning can recover the low-dimensional stream shape structure in the high-dimensional spectral data, and after feature extraction, satisfactory classification accuracy can be achieved on the test dataset using a machine learning classifier.
Research on Urban Road Pavement Extraction Method Based on Vehicle Point Cloud Data
Authors: Zhao Zhengwei
Published: March 2023

In order to extract structured urban road surface efficiently from vehicle point cloud data, this paper proposes a road surface extraction method based on normal vector clustering. First, a cloth simulation based filtering algorithm (CSF) is used to filter the interference of non-ground points; Secondly, the normal vector and curvature of each pavement point are estimated by principal component analysis; Finally, with the similarity of point cloud normal vector as the constraint condition, the road point cloud cluster is segmented. The vehicle-mounted point cloud data in the scene of straight and turning sections are verified, and the completeness and accuracy of road surface extraction are both above 92%. The experimental results show that the extraction results are less affected by the complex environment of urban roads, so the method proposed in this paper has strong applicability.
A Review of Emergency Medical Rescue Network Optimization Problems
Authors: Yu Lei
Published: March 2023

This paper mainly reviews the research on the optimization of emergency medical treatment network, which mainly includes the location of emergency medical facilities and the transportation of the wounded, as well as the integration of the two, and finds that although many scholars have paid attention to the research of related issues, they mainly focus on the optimization of emergency medical treatment network in the context of major natural disasters such as earthquakes and typhoons, and there are few related studies on the optimization of emergency medical treatment network under infectious health emergencies.
UAV Three-dimensional Hierarchical Path Planning
Authors: Li Baosheng
Published: March 2023

Aiming at the disadvantages of low efficiency and long operation time of UAV path planning in traditional 3D mountain environment, this paper proposes a layered path planning model for 3D mountain environment. Firstly, three-dimensional elevation diagram is used to model the three-dimensional space, and the three-dimensional space is divided into horizontal and vertical directions, which effectively improves the efficiency of path planning. Secondly, B-spline curve method is used to fit the trajectory points of UAV. Finally, the simulation experiment is carried out. The results show that the generated UAV path is smoother and converges faster, which can meet the task requirements.
Research and Application of Cuttings Flow Prediction Model for Horizontal Well
Authors: Pan Zhao , Liang Haibo
Published: March 2023

In the process of horizontal well drilling and logging, real-time and continuous monitoring of returned cuttings is needed to monitor the cleanliness of the hole and reduce complex drilling accidents, such as bit mud bag, wall collapse, stuck drilling, and leakage, which may affect drilling construction and logging operations. However, when the cuttings metering device fails or the acquisition data packet is lost, the cuttings data can be incomplete and discontinuous, which poses a challenge for well cleaning monitoring. In order to solve the problem of incomplete and discontinuous cuttings data caused by instrument failure or collection data packet loss of the cuttings weighing device in operation, this paper studies and compares three cuttings flow measurement prediction models to solve the problem of abnormal data caused by the failure of the cuttings weighing device or collection data packet loss. It provides a reliable means for reducing nonproductive time, monitoring and evaluating borehole cleaning.
The Analysis of The Bearing Fit Effect on Spindle Rotor System Vibration
Authors: Xing Shiyu , Ma Jian , Liu Aoxiang , Niu Siqi , Hu Binbin
Published: March 2023

Bearing fit is closely related to the dynamic characteristics of the spindle system. When the spindle rotates at high speed, affected by centrifugal force, load and other factors, the bearing fit will change. In this paper, the finite element method is adopted. A dynamic model of motorized spindle is established to analyze the relationship between bearing clearance and bearing stiffness. Bearing stiffness directly affects the dynamic characteristics of the spindle rotor system. The machining accuracy of spindle system decreases with the increase of clearance amount. The establishment of dynamic model of motorized spindle provides theoretical guidance for structure design of motorized spindle.
Analysis of Ecological Construction in the Process of Land Consolidation
Authors: Zhang Haiou , Cao Tingting , Wang Yingguo
Published: March 2023

Ecological environment protection has become a hot spot in the process of land consolidation. Land consolidation is a process of breaking the original ecological environment system and then rebuilding a new system. However, the lack of development of arable land reserve resources, the uneven quality of human settlements, and the lack of ecosystem protection and restoration technologies are still outstanding problems in land remediation. Therefore, attaching importance to land ecological construction plays an important role in promoting the implementation of China's current ecological civilization construction policy. In this paper, the idea of ecological protection and ecological construction should be carried through the whole process of land consolidation, the economic, social and ecological benefits of land consolidation project construction should be considered comprehensively, and the ecological construction problems in the process of land consolidation should be analyzed, and the concrete measures for ecological construction of land consolidation should be proposed. The research results provide scientific theoretical basis for the ecological construction of land consolidation and the development of ecological civilization in China.
Research on the Relationship between Brand Value and Corporate Social Responsibility in Food and Beverage Industry
Authors: Zhang Min , Ye Anning
Published: March 2023

This study combs the historical evolution of Chinese brand building and corporate social responsibility building, and combines it with the hot issues concerned by the public, proposes seven issues on the relationship between the performance of social responsibility by enterprises in the food and beverage industry to various stakeholders and the promotion of brand value, and gives analysis and explanation from five different theoretical perspectives. This study hopes to find a breakthrough and foothold to realize the growth of brand value of food and beverage enterprises, which can encourage relevant enterprises to perform their social responsibilities more actively.
Research and Implementation of a Numerical Control Oscillator with Improved Pipelined CORDIC Algorithm
Authors: Chen Yuechuan , Liu Yu
Published: March 2023

As the recognized core of electronic systems, frequency synthesizers have been applied in many communication fields. NC oscillator (NCO) is the main component of the frequency synthesizer. It helps to generate high-precision and high-frequency signals, so it has been widely used. NCO implementation methods include table lookup method, polynomial expansion method, coordinate rotation digital computer (CORDIC) algorithm, etc. CORDIC algorithm is one of many commonly used methods in trigonometric function calculation and digital signal processing, and is often used as the core of DDS (direct digital synthesis) to generate signals. Compared with table lookup and polynomial expansion, CORDIC algorithm has higher efficiency in signal generation and hardware utilization. In view of the disadvantages of traditional CORDIC algorithm, which takes up large resources and has relatively slow calculation speed, in order to improve the output efficiency, this paper uses an efficient 12-stage pipelined CORDIC architecture and a very small lookup table (LUT) to implement a sine wave generator. The system is coded and simulated in Quartus and ModelSim. The results show that the proposed structure can increase the operating speed of the system from 217.77 MHz to 291.04 MHz, and improve the output efficiency of the system.
Dilemma and Solution of Intelligent Vehicle Tort Liability Regulation in The Post-Civil Code Era
Authors: Liu Sai
Published: March 2023

Since the concept of "artificial intelligence" was first proposed in 1956, it has been applied in many fields, and China has also entered the era of artificial intelligence. Smart cars are developing more and more rapidly, bringing great convenience to people's lives, but they cannot completely avoid the risk of traffic accidents. After a smart car is involved in a traffic accident, how to allocate responsibility has become a difficult problem. Due to the autonomy of smart cars, existing laws do not seem to be able to fully solve this problem, and after the introduction of the Civil Code, it cannot solve it. Based on the research of relevant scholars, this paper clarifies the existing legal regulatory dilemma, and attempts to combine it with the classification standard of autonomous driving, so that the tort liability allocation of smart vehicles can be solved under the existing legal framework through the principle of grading proportionality.
Flow Characteristics Analysis of A New Combination Agitator Based on CFD
Authors: Yue Xiangcheng , Shi Yan
Published: March 2023

The computational fluid dynamics (CFD) method was used to simulate the velocity distribution, turbulent kinetic energy distribution and power consumption characteristics of two new types of large-blade combined agitators and traditional single-blade six-blade disc turbines designed for EVOH polymerization kettle in a factory. The results show that the new type of large-blade combination agitator has a better bottom turbulent kinetic energy effect, which can effectively avoid the stirring dead zone caused by single-layer stirring. At the same speed, compared with six-straight blade disc turbines, the torque and unit energy consumption of the two types of large-blade combination agitators are higher, but the effective stirring ratio is also increased by 31% and 30.8%, which can enhance the stirring effect.
Application Research of Data Mining in MES Quality Management
Authors: Wang Jiahai , Xu Guozhao
Published: March 2023

With the increasing market competition, enterprises have continuously raised the requirements for product quality in order to gain a favorable position in the market competition. In industrial production, MES quality information management mainly involves the collection, statistical analysis, and utilization of information data that affect quality in daily production. In actual industrial production, the formation of product quality is the result of the interaction of numerous factors. Due to the many factors and scenarios involved, traditional data statistical analysis methods cannot accurately and effectively analyze the collected relevant data, and fail to fully mine the value of data. This paper proposes the application of data mining technology to MES quality information management systems and elaborates on the use of the K-means algorithm and Apriori association rule algorithm to analyze the related processing rules of parts in the production and processing process. The algorithm model is used to analyze the actual production and processing data of a certain enterprise, and finally, the value and application of parts association processing rules in actual enterprise production management are summarized.
Research on the Selection of Agricultural Product Supply Chain Supplier
Authors: Fang Lina , Ge Huizhen
Published: March 2023

With the development of the global agricultural industry, the competition among agricultural product supply chain suppliers has become increasingly fierce. In this context, it is of great significance to explore the selection of agricultural product supply chain suppliers. Based on the analysis of the characteristics of agricultural product supply chain and the factors affecting the selection of suppliers, this paper proposes a supplier selection framework for agricultural product supply chain, which includes four stages: identification of supplier selection criteria, evaluation of supplier performance, negotiation and selection of suppliers, and management and improvement of supplier performance. Finally, the paper presents some suggestions for the selection of agricultural product supply chain suppliers, which can help agricultural enterprises to select high-quality suppliers and enhance the competitiveness of the supply chain.
The Dilemma and Promotion Strategy of Ideological and Political Construction of University Curriculum
Authors: Shao Daoping
Published: March 2023

The ideological and political construction of curriculum is one of the important links to realize the fundamental task of establishing morality and cultivating people in colleges and universities. At present, there are many problems in the ideological and political construction of curriculum in China's colleges and universities, such as the professional course teachers' understanding of curriculum ideological and political education and education awareness to be changed, the professional course teachers' ability to teach curriculum ideological and political education is not strong, the professional course teachers' lack of motivation for curriculum ideological and political education, and the imperfect ideological and political education mechanism of curriculum in colleges and universities. We must change the professional course teachers' understanding of curriculum ideological and political education and education awareness, improve the professional course teachers' ability to teach curriculum ideological and political education activate the motivation of professional course teachers for ideological and political education of courses, and improve the ideological and political education mechanism of college courses, so as to promote the high-quality development of ideological and political construction of college courses.
Research on the construction path of multi-dimensional collaborative cultivation system for innovative and entrepreneurial talents in regional colleges and universities
Authors: Huang Pengfei
Published: March 2023

Based on the current problems existing in the cultivation of innovative and entrepreneurial talents in regional colleges and universities, such as lagged educational concepts, lagging development of educational models, lack of entrepreneurial teaching platform, and imperfect security system, this paper tries to build the innovation and entrepreneurship talent training system from six aspects including enhancing school-enterprise cooperation, optimizing curriculum system, reforming assessment methods, strengthening platform construction, construction of teaching staff, and practical training, and puts forward measures like strengthening organizational security and financial support, establishing evaluation mechanism, and creating a good atmosphere, in order to provide reference for the innovation and entrepreneurship talent cultivation of regional colleges and universities.
La información empírica en la investigación de la Sociología del Derecho
Authors: Chávez de Paz Dennis
Published: March 2023

En el presente artículo se discute el concepto de dato y dato científico. Medición y cuantificación de la variable. La matriz de datos: relación entre unidad de análisis, variable y dato. El dato en la investigación socio jurídica. Muestra: tipos, tamaño y selección. Técnicas de recolección de datos: observación, entrevista, cuestionario y análisis de contenido. Sistematización de los datos.
Comparación de métodos de extracción de proteínas de cerebro y linfocitos de rata
Authors: Maldonado Moreno Karen , Martell Gaytán Rocío , Alvarado Tenorio Bonifacio , Valero Galván José , Martínez Martínez Alejandro , Díaz-Sánchez Ángel Gabriel , González-Fernández Raquel
Published: March 2023

En este trabajo se compararon tres técnicas de extracción de proteínas actualmente empleadas en proteómica, para determinar la más eficiente para realizar electroforesis bidimensional (2-DE) en tejido cerebral y linfocitos de sangre periférica de rata. Los métodos utilizados fueron el uso directo de solución de lisis, el método TCA/acetona-DTT y el método TCA/acetona-fenol. Una vez que se realizó la extracción, se separaron las proteínas por medio de electroforesis en geles de poliacrilamida en condiciones desnaturalizantes (SDS-PAGE) y 2-DE, con el objetivo de seleccionar cuál de ellos brindó un mayor rendimiento en la cantidad de proteínas totales, así como en el número de bandas bien definidas y manchas bien enfocadas en los geles 2-DE, tanto para cerebro como para linfocitos. Al comparar el perfil proteico, en cerebro se detectaron 13 ± 0; 15 ± 1 y 12 ± 1 bandas bien definidas mediante los métodos de TCA/ acetona-DTT, TCA/acetona-fenol y solución de lisis, respectivamente. En linfocitos, se encontraron 19 ± 1.20 ± 0 y 19 ± 1 bandas, respectivamente. Con respecto al proteoma, tanto en cerebro como en linfocitos se encontró mayor número de manchas proteicas consistentes y bien enfocadas con el método de TCA/acetona-DTT. Estos resultados mostraron que el mejor método de extracción de proteínas para su uso en la 2-DE correspondió al de TCA/acetona-DTT, siendo además más rápido y sencillo de realizar que el método de TCA/acetona-fenol.

DOI: https://doi.org/10.54167/tch.v11i3.87
EFL Learning and Vision 2030 in Saudi Arabia: A Critical Perspective
Authors: Al-Mwzaiji Khaled Nasser Ali , Muhammad Ahmad Abdullah Salih
Published: March 2023

Vision 2030 is a key economic transformation plan for Saudi Arabia conceived in 2016. It envisions the shift from oil to a knowledge-based global economy. Along with this historical event, Saudi Arabia undergoes another historic transformation, i.e., the strategic growth of EFL learning in the domain of education in the second decade of the twenty-first century. Since economy and education go hand in hand, scholars wonder whether EFL learning induces Saudi Vision 2030 or vice versa. The relation between them is causal by nature, but the order of effect is inexplicit. If Saudi Vision 2030 motivates EFL learning, then its present situation is inadequate for the fulfillment of the Vision. If not, then how the inadequate EFL competency of Saudi student can contributes to the visionary transformation of Saudi Arabia. Hence, the problem is an essential concern in academic understanding since its resolution redefines both EFL learning and Vision 2030 of Saudi Arabia. The study uses qualitative research on the existing scholarly books and articles on EFL learning and Saudi Vision 2030 to understand the causal order of these phenomena, to illustrate the present condition and explain interrelation of EFL Learning and Vision 2030 of Saudi Arabia.
MANAJEMEN PELAYANAN PETUGAS JASA PENYEBERANGAN KAPAL FERY DI DERMAGA BANJAR RAYA PADA DINAS PERHUBUNGAN KOTA BANJARMASIN
Authors: Khotami Wildani , Bahar Rusdi
Published: March 2023

Penelitian ini bertujuan untuk (1) Untuk mengetahui bagaimana Manajemen Pelayanan Petugas Jasa Penyeberangan Kapal Fery Di Dermaga Banjar Raya pada Dinas Perhubungan Kota Banjarmasin 2) Untuk mengetahui sistem pelayanan atau jasa yang melibatkan sejumlah interaksi dengan konsumen atau barang-barang sehingga berhubungan dengan Penyeberangan tentu berfungsi sebagai jembatan yang menghubungkan jaringan jalan dan/atau jaringan jalur yang dipisahkan oleh perairan untuk mengangkut penumpang dan kendaraan beserta muatannya. Berdasarkan hasil penelitian selama ini Dinas Perhubungan Kota Banjarmasin, Penggunaan jasa penyebrangan mengalami peningkatan yang cukup signifikan karena bertambanhnya mobilitas penduduk serta pertumbuhan angka penggunaan roda dua dan roda empat meningkat setiap bulannya. Terlihat dari penggunaan Kapal fery atau kapal penyeberangan adalah sebuah kapal transportasi jarak dekat. Kapal fery merupakan kapal yang memenuhi syarat-syarat pelayaran di laut dan dipakai untuk menyelenggarakan perhubungan tetap, misalnya antar pulau. Dinas Perhubungan atau biasa disingkat Dishub daerah Kota Banjarmasin. Dinas Perhubungan Kota Banjarmasin memiliki wewenang untuk memberikan izin persuratan terkait transportasi dan perhubungan seperti urus izin usaha angkutan, izin angkutan penumpang umum, izin angkutan barang, penerbitan Izin Trayek dan Kartu Pengawasan Angkutan Penumpang Umum, Izin Trayek Angkutan Antar Jemput, Izin Operasi Angkutan Sewa, Izin Operasi Angkutan Pariwisata, Surat Persetujuan Izin Trayek (SPIT), Izin Operasi (SPIO) Angkutan Taksi Antar Kota Dalam Provinsi (AKDP) dan lainnya.
KEMAMPUAN LITERASI PARAGRAF DAN KAITANNYA DENGAN PENYELESAIAN MASALAH MATEMATIKA PADA TARUNA TINGKAT 1 AKADEMI MARITIM NUSANTARA BANJARMASIN
Authors: Juhrani Juhrani , Desy Hidayati , Syahbudin Akhmad
Published: March 2023

Kemampuan menulis merupakan sarana penting bagi individu untuk tetap diperhitungkan dalam pergaulan karena menulis merupakan komunikasi untuk menyampaikan pengetahuan, ide, gagasan, dan perasaan kepada orang lain baik individu atau pun masyarakat baik pada lingkungan lokal, regional maupun global. Sesuai masalah pada penelitian Bagaimana kemampuan literasi paragraf taruna? Bagaimana kemampuan pemecahan masalah matematika pada soal cerita? Bagaimana keterkaitan kemampuan literasi paragraf dan kemampuan penyelesaian masalah matematika pada soal cerita? Menulis juga dapat menurunkan atau melukiskan lambang-lambang grafik menggambarkan suatu bahasa yang dipakai oleh seseorang, sehingga orang-orang lain dapat membaca lambang-lambang grafik tersebut kalau mereka memahami bahasa dari gambaran grafik itu. Dengan demikian, setiap tulisan memiliki gagasan atau ide yang tertuang dalam tulisan harus logis, diekspresiakan secara jelas, dan ditata secara menarik. Karena menulis merupakan sebuah keterampilan, pemerolehan kemampuan menulis pun harus melalui praktik dan latihan secara terus-menerus.

Metode yang digunakan dalam penelitian ini yaitu metode kualitatif deskriptif. Populasi dalam penelitian ini adalah taruna tingkat I Akademi Maritim Nusantara Banjarmasin. Sampel dipilih berdasarkan teknik purposive sampling, yaitu sampel dipilih berdasarkan kategori yang telah diberikan. Sampel penelitian ini terdiri dari 6 orang, dengan pembagian 2 orang dengan kategori kecemasan tinggi, 2 orang dengan kecemasan sedang, serta dan 2 orang dengan tingkat kecemasan rendah. Selain memperoleh data melalui angket, peneliti juga mengumpulkan data melalui observasi.

Hasil pembahasan Berdasarkan data yang didapat dari intrumen kemampuan pemecahan masalah matematika, taruna dengan kemampuan literasi paragraf tinggi memiliki kemampuan pemecahan masalah yang tinggi juga.  S-27 dan S-28 mempunyai kemampuan pemecahan matematika yang baik. Mereka bisa memahami soal dengan baik, sudah bisa menghubungkan denga dunia nyata, serta bisa menyelesaikan permasalahan dengan dengan permasalahan yang rumit. Namun untuk membuat generalasi permasalahan matematika tersebut masih belum bisa.Data kemampuan literasi paragraf kategori sedang yaitu untuk subjek S-12 dan S-19. Kemampuan mereka dalam memahami pemecahan masalah matematika cukup baik. Subjek cukup mampu melakukan prosedur penyelesaian permasalahan secara baik. Subjek bisa menggunakan rumus penyelesaian matematika dengan baik. Sehingga untuk permasalahan rutin pada pembelajaran matemattika subjek juga bisa menyelesaikan.
Consensus of the Brazilian Association of Nutrology on diagnosis, prophylaxis, and treatment of vitamin B12 deficiency
Authors: Nogueira-de-Almeida Carlos Alberto , Fernandes Sandra Lucia , Soriano Eline de Almeida , Lourenço Dayse Maria , Zotarelli Filho Idiberto José , Iucif Junior Nelson , Ribas Filho Durval
Published: March 2023

Introduction: Vitamin B12 deficiency is quite prevalent in all age groups and all regions of the country, however, there is a need for standardization of clinical management recommendations. Objective: It was to achieve a consensus on the diagnosis, prophylaxis, and treatment of vitamin B12 deficiency. Methods: An integrative review of the scientific literature was carried out in Scopus, PubMed, Science Direct, Scielo, and Google Scholar databases and on governmental and regulatory websites. Results: According to the literary search carried out by the authors of this study, 84 scientific works were selected. Based on these findings, in the timeline from 1999 to 2022, randomized controlled clinical studies represented the majority, and prospective and retrospective studies with significant sample sizes were elucidated in this consensus on the vitamin B12 administration for all patient populations. The basis of this scientific evidence was determined by appropriate clinical trials, with additional endpoints including patient clinical symptoms and biochemical parameters in addition to serum and marginal B12 level. Conclusions: Based on the scientific literature, the recommendations of the Brazilian Association of Nutrology for diagnosis, prophylaxis, and treatment of vitamin B12 deficiency were presented.
Media Sosial Sebagai Strategi Baru Dalam Dakwah Islam: Studi Analisis Pada Platform “Belajariah”
Authors: Maulana Achmad  , Jannah Roudlotul , Azizah
Published: March 2023

Platform ‘Belajariah’ merupakan salah satu aplikasi yang bergerak dalam bidang dakwah pembelajaran agama Islam online. Munculnya Platform ‘Belajariah’ tidak lepas dari tren dakwah dalam media sosial sebagai sarana baru. Uniknya, Platform ‘Belajariah’ bukan hanya sekedar aplikasi yang membagikan pembelaran agama saja, namun juga menyediakan kelas kursus online. Kajian ini ini dimaksudkan untuk menganalisis aktivitas dakwah dalam Platform ‘Belajariah’. Maka, pertanyaan utama yang ingin dijawab pada kajian ini adalah: “Bagaimana aktivitas pembelajaran pada Platform ‘Belajariah’ dan implikasinya terhadap perkembangan dakwah Islam?. Kajian ini merupakan kajian kualitatif dengan penelitan normatif atau kajian kepustakaan (library research). Hasilnya, kajian ini menunjukkan bahwa aktivitas dakwah Platform ‘Belajariah’ diklasifikasikan dalam lima tema pembelajaran, yakni kelas tahsin, iqra’, dirosa, tahfidz, dan tilawah. Kursus online yang ditawarkan dibimbing langsung oleh guru-guru yang profesional. Hadirnya Platform ‘Belajariah’ menjadikan dakwah lebih efektif dan efisien untuk menyebarluaskan dan mengajarkan ilmu agama Islam. Besarnya antusiasme pengguna platform ‘Belajariah’ dalam mengikuti kelas kursus online menunjukkan bahwa eksistensi platform ini menjadi alternatif yang dapat memenuhi kebutuhan pengguna dalam belajar Agama.
دعوة معهد الشيخ شريف الدين عبر وسائل التواصل الاجتماعي
Authors: Sholeh Muhyiddin , Farid Ahmad
Published: March 2023

المعاهد الإسلامية هي من أبواق الدعوة في الإسلام. في هذا العصر الرقمي ، لا تُستخدم وسائل التواصل الاجتماعي كوسيلة للاتصال والمعلومات فحسب ، بل يمكن استخدامها كوسيلة للدعوة. لا تتم الدعوة وجهاً لوجه مع الداعية مباشرة فحسب ، بل يمكن أن تتم الدعوة بشكل غير مباشر من خلال وسائل الإعلام. وسائل الإعلام فرصة عظيمة للدعاة خاصة في معهد الشيخ شريف الدين

 تهدف هذه الدراسة إلى وصف 1) تحسين الوسائط الرقمية للدعوة خاصة في المعهد الشيخ شريف الدين لوماجنج ، و 2) تحديات الدعاة في مواجهة العصر الألفي. الطريقة المستخدمة في هذا البحث وصفية كيفية. تشير نتائج هذه الدراسة إلى أن معهد الشيخ شريف الدين في تحسين الوسائط الرقمية من خلال الدعوة يمكن أن يتم بالطريقة الأولى : نشر المعرفة وغرس الثقة في الجمهور أو المستمعين. ثانيًا ، تشكيل فريق خاص في نشر الدعوة على وسائل التواصل الاجتماعي وحسابات الوسائط ، ثالثًا ، إنشاء مواقع إلكترونية تحتوي على مشاكل مجتمعية ، ورابعًا ، إنشاء محتوى دعوي على وسائل التواصل الاجتماعي ، مثل Youtube و Instagram و FB و Tik Tok.. و خامساً: إعداد كوادر مؤهلة لمواجهة تحديات الدعوة في العصر الألفي

الكلمات المفتاحية: الدعوة ، معهد الشيخ شريف الدين ، ووسائل التواصل الاجتماعي
الدعوة المتعددة الثقافات في عصر الإعلام الجديد
Authors: Ghulam Zainil , Subahri Bambang , Ghofur Abdul
Published: March 2023

قدم عصر الإعلام الجديد حوافز كبيرة للمجتمع ، وسهولة الحصول على المعلومات هي المعيار ، على الرغم من أنه ليس من النادر أنها مثيرة للجدل. الفضاء الرقمي يقضي على الحواجز الإقليمية بين الناس. بين الأفراد يمكن أن تتفاعل بحرية وانفتاح حتى في مجال الدين. تمت دراسة هذا البحث باستخدام المنهج النوعي والتعددية الثقافية للدعوة كإطار نظري. تناقش هذه الدراسة طبيعة الدعوة ، وهي جوهر الدعوة متعددة الثقافات في الفضاء الرقمي. تشير نتائج هذه الدراسة إلى وجود قدر كبير من قضايا السلام والإنسانية والمحبة وتنمية المعرفة الإسلامية والتي يتم توزيعها من خلال المنصات الرقمية.
Сomparative energy efficiency of soil management of Cherkasy region in different periods of management
Authors: Demуdenko O.V. , Vitvitskyy S.V.
Published: March 2023

Aim. To conduct a comparative analysis of energy efficiency of agriculture in the period of developed animal husbandry when applying manure as an organic fertilizer (1956−1995) and its coagulation (1996−2020) and the use of by-products in the agro-industrial complex of Cherkasy region. Methods. Analytical, statistical, mathematical. Results. During the period from 1956 to 2020 there was a significant transformation of the structure of sown areas in the agro-industrial complex of Cherkasy region due to the reduction of spring crops, fodder crops and growth of corn, sunflower, soybeans, which significantly affected the yield of main and by-products and changed their ratio. which, in the end, leaned in favor of the yield of by-products with the growth of the components that determine the ratio. The change in the structure of sown areas significantly affected the energy intensity of the main and by-products: in the period from 1956 to 1975, the main products accounted for 43% of energy consumption, and by-products – 35%; in the period 1976–1990 48% and 35%; in the period 2011−2020 36% and 54% respectively. Energy profitability for the growth of productivity and gross output of basic products in the period from 1996 to 2020 decreased 4.2 times compared to the period from 1956 to 1995, and relative to the total biomass formed by 1.25 times; energy consumption of production increased 4.9 times, and energy efficiency decreased 3.9 times. At the same time Kee decreased by 2.8–3.9 times, reaching the lower limit of efficiency (Kee = 2.5–2.6). Conclusions. It was found that the highest energy efficiency of agriculture was in the period from 1996 to 2000, when the highest level of energy efficiency was achieved (Kee = 4.66): at the same time high efficiency of crop production was ensured with simultaneous use of manure and by-products as organic fertilizer. . During this period, the optimal number of cattle was reached, when the number of cattle was about 600 thousand, against 1022 thousand heads in the period 1985−1990, which is 1.7 times less.
Protection of Online Gender-Based Violence Victims: A Feminist Legal Analysis
Authors: Violin Gisela , Nafi Yvonne Kezia
Published: March 2023

The complexity of the digital era, especially throughout the COVID-19 pandemic, has led to increasing cases of gender-based violence online (GBVO). However, this issue has not yet received attention in the realm of Indonesian law, especially when it comes to protecting the rights of the victims. This paper aims to see how the current legal framework in Indonesia handles GBVO cases and whether it is sufficient to provide protection for victims. This paper also wants to show that the practice of GBVO is often more detrimental to women through the elaboration of several examples of cases that are widely discussed in Indonesian society. The correlation between the strong patriarchal culture; and the lack of understanding by the community and law enforcement officers on the concept of consent always corners women as victims of GBVO and applies it to the secondary victimization process. The research was conducted using a feminist legal method that focuses on the experience of women as victims to encourage the formulation of a legal umbrella and legal system with a more victim perspective.
An Interdisciplinary Legal Study of the Organisation of the Courts: The Methodological Consequences of the Meeting between Legal and Management Approaches
Authors: Rositawati Dian
Published: March 2023

This article presents the relationship between legal principles and management principles in the judicial organization and how they affect the judiciary's performance. As an organization, the judiciary is bound by the rule of law principles, especially the principle of judicial independence, as stated in the constitution and laws. However, the courts as an organization are also influenced by management principles, which include viewing public organizations from efficiency, effectiveness, and service quality perspectives. This paper discusses the interaction and tension between these principles in a judicial organization and their methodological consequences. In the discussion about methodology, this paper will elaborate on the application of interdisciplinary legal research methods as a consequence of the dynamics between the two perspectives in the judicial organization. The discussion of the methodology will also cover the technical aspects of the application of research methods, so it is expected to fulfill a practical function in assisting legal researchers in applying interdisciplinary legal research.
Combs of the Chernyakhov Culture: Magical Function
Authors:   Institute of Archeology, National Academy of Sciences of Ukraine, Magomedov Boris
Published: March 2023

For the Germans of the Roman period, and especially for the Chernyakhov Goths, metal and antler combs had a sacral and magical significance. The “cult of combs” among the Goths went through several stages of development, gradually intensifying in its material manifestation. From the second half of the 3rd century from Northern Europe, iron combs-amulets penetrate into the Chernyakhov culture. In the middle of the 4th century, they were replaced by miniature horn amulets. At the same time, images of combs appear on ceramics. In the last quarter of the 4th century combs with drawings of animals (mythological characters) appear.
A Few Details to the Portrait of a Modern Archaeologist
Authors:   Institute for the History of Material Culture of the Russian Academy of Sciences, Girya Evgeny
Published: March 2023

More than six months have passed since that tragic day when an insidious disease snatched our dear friend Oleg Vasilyevich Sharov, our wonderful Shary, from our ranks. Many times I took up writing these lines, and every time I gave up — I didn't have the strength to accept his departure. I have a lump in my throat as I am writing this. I do not consider myself entitled to write about Oleg as an archaeologist, a specialist in his field of science. The realities of modern archaeology have long been such that, being an inveterate Stone Age man, I can only imagine in the most general terms what and how is happening in the archaeology of later epochs. My competence rarely extends beyond the times when material culture was still connected with stone, that is, no later than the Bronze Age. Oleg's scientific works will undoubtedly be far better evaluated by those who are familiar with the matter. Therefore, I will write about him as a friend, as a comrade and colleague, with whom the brightest pages of my life are inextricably linked. On the other hand, at the same time, I also do not intend to pretend to create a portrait of Oleg. I have neither the strength nor the ability to do this. This is just a short essay about Oleg, written in the non-existent genre of ‘grief’. Sketchily, I will try to note certain features that, in my opinion, were typical of him and especially dear to me.
Vault 197 beyond the Horizon of the Cemetery near the Village Luchistoe in the Southwest of the Crimea
Authors:   V.I. Vernadsky Crimean Federal University, Aibabin Aleksandr , Khairedinova lzara ,   Institute of Archaeology of Crimea of the Russian Academy of Sciences
Published: March 2023

The article publishes vault 197 excavated in 2002 with burials from the end of the 4th — the first half of the 5th century from the burial ground at Luchistoe. The design of crypt 197, the elements of the funerary rite recorded in it, the details of the costume and decorations are typical for the Alanian population of the Southwestern Crimea. A burial of a warrior with the tip of a spear or a dart was found in the crypt. The warriors buried at the burial ground near Luchistoe were armed with swords (short or long), or stabbing weapons. Judging by the accompanying grave goods, the warriors armed with swords belonged to the elite, while the spearmen were ordinary members of the community.
Field seasons of Oleg Sharov
Authors:   Saint Petersburg State University, Tikhonov Igor
Published: March 2023

The article tells about the field activity of the famous St. Petersburg archaeologist, a major specialist in the antiquities of the Roman period of Eastern Europe and the Northern Black Sea region, Dr. of archaelogy Oleg Vasilyevich Sharov (1960—2021). Starting in 1978 in Polotsk, his field activities took place in the Crimea, Moldova, on Taman and the Kola Peninsula, in Siberia. The main objects of his study were the Chernyakhov culture settlements and other “barbarian” cultures of the first centuries AD in the Northern Black Sea region. Together with M. B. Shchukin, his teacher, he supervised the excavation of the cemetery and the settlement of Chatyr-Dag in the mountainous Crimea in 1994—1996, and the settlement of Taraktash near Sudak in 2002—2008. There were found sanctuaries with extensive ceramics and anthropomorphic idols. In 2013—2021, O. V. Sharov was an active participant in large-scale rescue archaeological research that unfolded in Taman and in the Crimea.
Hieratic Complex Taraktash in the Eastern Crimea
Authors: Sharov Oleg
Published: March 2023

The hieratic complex Taraktash is located on the slopes of a mountain ridge with the same name, 3 km north to Sudak on the South-Eastern shore of the Crimea. The dig conducted in 1995 and in 2002—2008 on the slopes of Taraktash Mountain uncovered three shrines. Several complexes of adobe buildings were revealed and studied in the vicinity, resting on stone foundations (Taraktash-1 settlement) on the western and southern slopes of the Taraktash. The hieratic structure Taraktash-I is dated within 50s — turn of 4th—5th centuries AD; the hieratic structure Taraktash-II is dated within 150s — 250s AD, with some individual finds from the 4th century AD; the hieratic structure Taraktash-III is dated within a short interval in the 2nd century AD. In 2020, the author analyzed the ceramic finds from the digs of 2002—2008 and, based on chronologies of some types of amphorae and red-lacquered vessels, provided more precise dates for emergence and disappearance of the hieratic structures in Sudak valley during the Roman Time and the Great Migrations.
The Сrypt 23/1891 from the Archaeological Excavations Led by К. К. Кostsyushko-Valyuzhinich: new studies in 2020
Authors: Sharov Oleg , Kostromichyov Daniil ,   The State Museum-Preserve “Tauric Chersonese”, Novoselova Nadezhda ,   State Hermitage Museum
Published: March 2023

The article analyzes materials from the excavations of crypt 23 of the Chersonesus necropolis. The crypt was explored in 1891 by K. K. Кostsyushko-Valyuzhinich. The crypt was found again in 2020 during exploration of the southern necropolis of Chersonesus. Establishing the exact location of the crypt makes it possible to significantly correct the location of the excavations of the southern necropolis of Chersonesus in 1891—1893. In the process of working on the materials of the crypt in the museum collections of the State Hermitage Museum and the SMP “Tauric Chersonesus”, it was possible to discover some items from his excavations of this crypt in 1891. Previously, some of the items were considered lost. Items have been re-attributed. An analysis of the grave goods made it possible to clarify the conclusions about the circumstances and time of the burials in the crypt. The inscriptions on the objects make it possible to identify those buried in the crypt with representatives of the urban nobility of Chersonesus in the 2nd — early 3rd centuries AD.
Editorial
Authors: Sairally Beebee Salma
Published: March 2023

Historical Review of IJIF
This year we celebrate 15 years since the launch of ISRA International Journal of Islamic Finance (IJIF). IJIF started in 2009 under the ownership and management of the International Shari’ah Research Academy for Islamic Finance (ISRA) with the vision to promote further innovation in the Islamic finance industry and academia by providing a platform for publishing high quality research in the areas of Islamic banking, economics, finance, law and takāful. ISRA initially published two issues of the Journal per annum in hard copies. Three types of articles were considered: articles of academic rigour, articles by practitioners who have experience in applied Islamic finance, and the research works carried out by ISRA researchers under the heading ‘Research Notes’.
Who Gets Believed? Trust and Investor Reaction to Earnings Announcements in Sharīʿah-Compliant vs. Sharīʿah Non-Compliant Firms
Authors: Ahmed Quratulain Nazeer , Sharif Saqib
Published: March 2023

Purpose ‒ Considering the proclamations of trustworthiness within the Islamic financial system and the positive relationship between stock market reaction and earnings announcement of the trustworthy firm, this paper aims to empirically test the presence of trust in Sharīʿah-compliant listed firms in Pakistan.
Design/Methodology/Approach ‒ The research question has been addressed by investigating firms listed on the Pakistan Stock Exchange (PSX) from 1 July 2019 to 30 June 2020. Event study method has been used by taking Abnormal Return Variance (ARV) and Abnormal Trading Volume (ATV) as proxies to measure the investors’ reaction following earnings announcements.
Findings ‒ The results suggest that stock price variations around earnings announcements are negatively related to trustworthy firms compared to less-trusted firms (i.e., Sharīʿah non-compliant firms). For ATV, it was found that traders react to annual earnings announcements for both types of firms in a similar way.
Originality/Value ‒ This research is an attempt to evaluate the Islamic financial system from its trustworthiness perspective. Sufficient literature has already documented that being trustworthy is obligatory for Sharīʿah-compliant firms. This study contributes to the literature by examining whether the market/investors trust such firms or not.
Research Limitations/Implications ‒ This research is based on a single-country analysis with a research span of one year. Cross-country analysis with a broader time horizon may give further clarity.
Practical Implications ‒ This paper has made a valuable contribution to the literature by providing the guideline on how investors’ reactions to Sharīʿah-compliant firms differ from their reactions to Sharīʿah non-compliant firms. It also indicates how religious elements may subdue other social factors such as trust. This paper has also explored the market reaction by assessing both the liquidity and volatility of the stock market in Pakistan.