bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALYSIS OF MASTERING MOLAR RESTORATION MANUAL SKILLS BY SENIOR DENTAL STUDENTS
Authors: Elovicova Tat'yana , Ssablina Svetlana , Griroriev Sergey , Mandra Yuliya , Koshchev Anatoly , Makerova Natalia , Gegalina N. , Kozmenko Anastasia 
Published: November 2023

Subject. The subject of this research is manual skills in molar restoration.
Objective. The objective of this research is to analyze the process of mastering manual skills in restoration of phantom molar tooth models by senior dental students.
Methodology. The study was carried out by the Department of Therapeutic Dentistry and Propedeutics of Dental Disease of Ural State Medical University of the Ministry of Health of the Russian Federation together with the Department of Control Systems Modeling, Ural Federal University. The study involved 54 four- and five-year dental students of Ural State Medical University (24 young male adults, 30 young adult women; the average age was 22.25 ± 1.75 years) in a procedure of dental filling of carious cavities in five “phantom” teeth – extracted molars (Black classification was Class I). This research applied the method developed by Prof. Larisa Lomiashvili together with co-authors for molar restoration using modular techniques. To analyze self-assessment of manual skills for molar restoration by senior students the questionnaire was completed. The questionnaire was made up of three blocks including 12 questions (parameters) evaluated using 1 to 10 rating scale survey, the rating being 10 for “fully satisfied”, and 1 for “completely dissatisfied”. The survey questions were divided into the following blocks: understanding of dental anatomical features, professional skills of students, cognitive motivational factors.
Conclusions. The analysis of assessment scores and survey responses showed that mastering manual skills by senior students during a molar restoration procedure promotes their accuracy and ability to work with precision. The analysis of mastering manual skills for molar restoration by dental senior students using the survey responses showed rather high self-assessments (p ≤ 0.05).
Improving undergraduate students’ learning through Online Educational Guidance Meetings (OEGMs)
Authors: Ceylan Begüm , Bavlı Bünyamin 
Published: November 2023

This study aimed at obtaining reflections on Online Educational Guidance Meetings (OEGMs), executed in the English preparatory program during COVID-19 Pandemic in a university in Istanbul. The OEGMs were voluntary meetings between a student and the instructor. Students were able to ask for suggestions to study more effectively via an online meeting platform. The qualitative collaborative action research design was operated in the study. One-on-one interviews with 8 instructors and focus group interviews with 12 students were conducted to obtain the data. Content analysis method was employed to analyze obtained data. The findings revealed that this new method, which brought the students together with their instructors in personal one-to-one meetings, provided numerous advantages psychologically and academically in the learning process.
Received: 28 February 2022Accepted: 24 July 2023
The impact of an active-learning designed faculty development program: A students’ perspective of an Italian university
Authors: Fedeli Monica , Taylor Edward W. 
Published: November 2023

This study aims to understand the impact of a faculty development program emphasizing active learning (innovative teaching) attended by instructors of diverse disciplines at the University of Padova in Italy, which has had an 800-year history of using traditional approaches to teaching and learning. Using a community of practice theoretical framework, it recognized that the development of faculty learning communities provided a supportive medium for fostering innovative teaching. A multilevel research design involving surveys collected from 2019 to 2020 explored the program’s impact in terms of student satisfaction and program effectiveness. Findings showed varied levels of impact, among student examination attempts, pass rates and average grades. These findings, although involving one university, are organizationally and culturally emblematic of other Italian universities and have related implications when considering the implementation of innovative approaches to teaching via faculty development programs. This study also revealed challenges (faculty engagement) and limitations when measuring (e.g., satisfaction, exam attempts) the impact of active learning in relationship to learning outcomes.
Received: 30 June 2022Accepted: 3 October 2023
FAKTOR PENENTU YANG MEMPENGARUHI NIAT BELI KONSUMEN PADA ONLINE FLASH SALE DI SHOPEE
Authors: Mufidah Nafaturrahmah  , Budi Astuti  
Published: November 2023

Dalam kurun satu dekade, marketplace telah jauh berkembang dengan pesat. Hal ini tidak luput dari kegiatan promosi pada sejumlah perusahaan dagang berbasis elektronik, salah satunya kegiatan online flash sale (OFS). Penelitian tentang OFS masih jarang dilakukan di Indonesia, oleh karena itu penelitian ini ditujukan untuk menganalisis faktor pengaruh niat pembelian pada online flash sale di Shopee. Variabel yang digunakan adalah tekanan waktu, sebagai bagian dari keterbatasan yang diciptakan dari OFS, serta keterlibatan produk dan nilai yang dirasakan konsumen. Nilai yang dirasakan berupa nilai harga, fungsional, emosional, dan sosial. Penelitian ini menggunakan data primer, yakni meninjau langsung pada pengguna Shopee untuk menunjang analisis secara konkret melalui analisis regresi berganda. Hasil penelitian yang digambarkan berkontribusi dalam penelitian lanjutan dan kualitas kegiatan online flash sale di Shopee sehingga dapat dijadikan bahan pertimbangan dalam mengembangkan strategi pemasaran.
Kata Kunci: online flash sale, tekanan waktu, keterlibatan produk, nilai yang dirasakan, niat beli.
Analisis kebijakan fiskal terhadap pertumbuhan ekonomi di Indonesia
Authors: Wijayanti Diana , Muhammad Ramadhan Bayu Aji  
Published: November 2023

Purpose – This study aims to analyze the effect of fiscal policy on economic growth in Indonesia.
Methods – This study uses the time series methodology method from 1990-2021 and uses the Vector Auto Regression (VAR) or Vector Error Correction Model (VECM) approach.
Findings – The results showed that in the long run the variables of taxes, foreign debt, employee spending, goods spending, and subsidies affect economic growth, where the variables of taxes, goods spending, and subsidies have a positive correlation with economic growth in Indonesia, while foreign debt and employee spending have a negative correlation with economic growth in Indonesia.
Implication – This research has implications for the influence of fiscal policy on economic growth in Indonesia in the long run.
Originality – This research contributes to analyzing fiscal policy towards economic growth in Indonesia.
Abstrak
Tujuan – Penelitian ini bertujuan untuk menganalisis pengaruh kebijakan fiskal terhadap pertumbuhan ekonomi di Indonesia.
Metode – Penelitian ini menggunakan metode metodologi time series tahun 1990-2021 dan menggunakan pendekatan Vector Auto Regression (VAR) atau Vector Error Correction Model (VECM).
Temuan – Hasil penelitian menunjukkan bahwa dalam jangka panjang variabel pajak, utang luar negeri, belanja pegawai, belanja barang, dan subsidi berpengaruh terhadap pertumbuhan ekonomi, dimana variabel pajak, belanja barang, dan subsidi memiliki korelasi positif terhadap pertumbuhan ekonomi di Indonesia, sedangkan utang luar negeri dan belanja pegawai memiliki korelasi negatif terhadap pertumbuhan ekonomi di Indonesia.
Implikasi – Penelitian ini berimplikasi terhadap adanya pengaruh kebijakan fiskal terhadap pertumbuhan ekonomi di Indonesia dalam jangka panjang.
Orisinalitas – Penelitian ini berkontribusi dalam menganalisis kebijakan fiskal terhadap pertumbuhan ekonomi di Indonesia.
Selection of Pin Component Sub Suppliers for Checking Fixture Products Using an Analytical Hierarchy Process Approach
Authors: Imansuri Febriza , Aritama Ditya , Sumasto Fredy , Purwojatmiko Handoko 
Published: November 2023

The objective of this study is to employ a multi-criteria decision-making system technique to identify the most optimal supplier in the automotive components sector. When selecting a supplier, it is crucial to evaluate the pros and downsides of each source in order to secure the most suitable one. Bahana, Ltd is a company that specializes in the production of plastic components, molds, jigs, and equipment. During the production process of inspecting fixture items, pin components are required to assemble the components that need to be assembled. At now, there are no explicit guidelines for choosing suppliers, and the selection process relies solely on subjective evaluations. Consequently, it is necessary to establish supplier selection criteria through the utilization of the Analytical Hierarchy Process (AHP) methodology. This strategy is highly suitable for resolving decision-making challenges. Bahana, Ltd employs pairwise comparisons to evaluate four criteria: pricing, quality, communication, and location. Bahana, Ltd has the highest criteria value of 0.36 in terms of quality, followed by a value of 0.33 in terms of pricing. Hence, the paramount criteria in supplier selection are quality and pricing. According to the AHP calculation results, PT A was determined to be the optimal choice as it obtained the highest weight value in comparison to other suppliers.
Avatar Görünümünün Etkili Olduğu Unsurların Müşteri Olma Niyeti Üzerine Etkisinin İncelenmesi
Authors: DAL Nil Esra , TAŞCI Muhammed Furkan 
Published: November 2023

Amaç: Çalışmanın amacı sanal mağazalarda avatar görünümünün mutluluk, heyecan, güven, empati ve duygusal çekicilik unsurları üzerindeki ve bu unsurların tüketicinin müşteri olma niyeti üzerine etkisini ölçmektir. Ayrıca avatar görünümünün müşteri olma niyeti üzerinde mutluluk duygusunun aracı rolü incelenmiştir.
Tasarım/Yöntem: Yazarların oluşturduğu sanal mağaza ve avatarlar katılımcılara izletilmiştir. Kolayda örneklem metodu yardımıyla 214 katılımcıdan toplanan veriler, kısmi en küçük kareler yapısal eşitlik modellemesi ile test edilmiştir.
Bulgular: Çalışmada avatar görünümünün mutluluk, heyecan, güven, empati ve duygusal çekicilik üzerinde etkili olduğu bulunmuştur. Ayrıca mutluluk ve duygusal çekicilik unsurlarının müşteri olma niyeti üzerinde etkisi ve avatar görünümünün müşteri olma niyeti üzerinde mutluluk duygusunun aracı rolü tespit edilmiştir.
Sınırlılıklar: Yazarlar tarafından oluşturulan sanal mağazada katılımcılara mağaza ve avatar deneyimini yaşatmak özellikle zaman açısından önemli bir kısıttır. Bu deneyimin sanal gözlük ile gerçekleştirilememiş olması da araştırmanın bir diğer kısıtıdır.
Özgünlük/Değer: Dijital çağın, tüketicilerin ve işletmelerin sanal mağaza ve avatar kullanımındaki artışı beraberinde getireceği düşünülmektedir. Bu durum, sanal mağazalarda yer alan avatarların tüketici duygularına etkisini ve bu duyguların müşteri olma niyeti üzerindeki etkisinin incelenmesini değerli kılmaktadır. Çalışma; sanal mağaza deneyimi, avatar görünümü, tüketici duyguları ve müşteri olma niyeti konularını ele alan kısıtlı sayıdaki çalışmalardandır ve bu konuda pazarlama literatürüne katkı sağlaması beklenmektedir.
Effect of pulsed hydrogen and helium plasma irradiation on the formation of solid solutions in the thin-film CdTe/CdS heterosystem
Authors: Khrypunov Gennadiy , Meriuts Andrii , Kharchenko Mykola , Herashchenko Stanislav , Kolodiy Іhor , Pudov Aleksey , Khramova Tetiana , Shelest Tetiana , Kuziakin Oleksandr 
Published: November 2023

The interphase interaction of cadmium sulfide and cadmium telluride thin film layers under irradiation with pulses of hydrogen and helium plasma was investigated by the X-ray diffraction method. CdS/CdTe heterosystem samples were obtained by the hot wall method on glass substrates with a transparent FTO electrode. During deposition of CdS layers 0.3–0.32 µm thick, the temperature of the evaporator zone was 590 °C, and the substrate temperature was 395 °C. CdTe layers 3.8–4.0 µm thick were deposited at an evaporation zone temperature of 520 °C and a substrate temperature of 497 °C. After deposition, the “chloride” treatment of the heterosystem was carried out. The “chloride” treatment consisted in the deposition of a cadmium chloride film 0.7 μm thick on the surface of a CdTe by thermal vacuum evaporation without heating the substrate and by annealing the entire structure in air at a temperature of 410-415 °C for 20 min. The composition of the solid solutions was determined from the lattice period according to Vegard's rule. In the initial state, along with the cubic phase of cadmium telluride, the presence of CdTe1-xSx solid solutions with a sulfur concentration of 3 % and 8.2 % is observed. After irradiation of the CdS/CdTe heterosystems with hydrogen plasma pulses, the entire base layer turned into a solid solution with a sulfur concentration of 3 %. At the same time, two more phases of CdTe1-xSx solid solutions with sulfur concentrations of 6 % and 11.5 % were observed. The relative concentration of the cadmium telluride phase in the initial state was 84 %, after irradiation with hydrogen plasma pulses it was 82 %. In the initial state, the phases of solid solutions with sulfur content of 3 % and 8.2 % had relative concentrations of 7 % and 9 %, respectively; after irradiation, their relative concentrations became 15 % and 3 %, respectively. After irradiation of the CdS/CdTe heterosystem with helium plasma pulses, the entire base layer turned into a solid solution with a sulfur concentration of 1.5 %. In this case, two more phases with a sulfur concentration of 3.7 % and 7.9 % were observed. The relative concentration of cadmium phase telluride after irradiation with hydrogen plasma pulses decreases to 79 %. After irradiation, the relative concentration of the phase of solid solutions with sulfur contents of 3 % and 8.2 % increases to 17 % and 12 %, respectively. The experimentally observed difference in the evolution of the phase composition of the CdS/CdTe film heterosystem under irradiation with hydrogen and helium plasma pulses may be due to the fact that irradiation with more massive helium atoms leads to a greater thermal effect, which causes melting.
Investigations of the variable magnetic moment automatic compensation efficiency improving possibility of three-phase electrical equipment currents
Authors: Sereda Oleksandr , Sereda Olena , Kruykova Nataliya 
Published: November 2023

An analysis and review of known parametric systems for automatic compensation of electrical equipment the external magnetic field was carried out. It was found that the known parametric electrical equipment automatic compensation systems of the external magnetic field do not take into account the change in the order of alternating power phases when the level of the external magnetic field changes, which reduces the effectiveness of the three-phase electrical equipment magnetic field compensation by two to three times. The parametric system of three-phase electrical equipment sinusoidal currents magnetic moment automatic compensation with the phase alternation order sensor was improved, the distinguishing features of which are the preliminary determination of the phases alternation order in the power circuit of three-phase electrical equipment and the formation electromagnets compensators currents taking into account this order, which allows to increase the efficiency of three-phase electrical equipment currents magnetic moment compensation and use such a system in a three-phase distribution device containing a plurality of three-phase feeders. The system parameters bench adjustment method of the sinusoidal currents magnetic moment automatic compensation of three-phase electrical equipment with the phase alternation order sensor has been improved, which differs from known methods in that the phases order in the power circuit is determined in advance and the currents of the electromagnets compensators are formed taking into account this order and only then the power is supplied in turn, in each independent circuit of the electrical equipment power circuit an electromagnet compensator oriented along the selected axis is simultaneously turned on, the component of the total magnetic moment along the same axis is measured, and depending on its value, the magnitude and phase of the compensation currents signals are adjusted, then the sequence of alternating phases is changed and the rest of the operations are repeated. It is recommended to improve the non-sinusoidal currents magnetic moment system automatic compensation of three-phase electrical equipment with the phases alternating order sensor to ensure high efficiency of the magnetic moment compensation and the external magnetic field regardless of the power supply phases alternating order of three-phase electrical equipment.
Long-ranged charge order conspired by magnetism and lattice in an antiferromagnetic Kagome metal
Authors: Yan Ya-Jun , Chen Ziyuan , Wu X. L. , Zhou Shiming , Zhang Jiakang , Yin Ruotong , Li Yuanji , Li Mingzhe , Gong Jiashuo , He Mingquan , Chai Yisheng , Zhou Xiaoyuan , Wang Yilin , Wang Aifeng , Feng Donglai 
Published: November 2023

Abstract

Exotic quantum states could be induced due to the interplay of various degrees of freedom such as charge, spin, orbital, and lattice. Recently, a novel short-ranged charge order (CO) was discovered deep inside the antiferromagnetic phase of a correlated Kagome magnet FeGe. Since the spin-polarization is significantly enhanced in the CO state, magnetism may play an important role. However, its short-ranged nature hinders the precise identification of CO properties, and its mechanism is still controversial. Here, we report the observation of a long-ranged CO in high-quality FeGe samples, in contrast to the previously reported short-ranged ones. Moreover, the distorted 2 ×2×2 CO superstructure can now be precisely refined, which is characterized by a strong dimerization along the c-axis of 1/4 of the Ge1-sites in the Fe3Ge layers. Our results provide strong support to the recent theoretical prediction (arXiv:2304.01604), where the CO in FeGe is driven by saving magnetic exchange energies via such dimerization. Consequently, the enhancement of spin-polarization and the previously observed short-ranged CO can be understood. Our experiments, combined with the theory, have provided a comprehensive understanding of the puzzling CO behavior in FeGe, and established a novel charge order mechanism conspired by magnetism and lattice, different from conventional charge density wave mechanisms.
Evaluating Bacterial Spore Preparation Methods for Scanning Electron Microscopy
Authors: Malyshev Dmitry , Lee Cheng Choo , Andersson Magnus 
Published: November 2023

Abstract

Scanning Electron Microscopy (SEM) can reveal the ultrastructure of bacterial spores, including morphology, surface features, texture, spore damage, germination, and appendages. Understanding these features can provide a basis for adherence, how physical and environmental stressors affect spore viability, integrity and functionality, as well as the distribution and function of surface appendages. However, the spore sample preparation method can significantly impact the SEM images' appearance, resolution, and overall quality. In this study, we compare different spore preparation methods to identify optimal approaches for preparation time, spore appearance and resolved features, including the exosporium and spore pili, for SEM imaging. We use B. paranthracis as model species and evaluate the efficacy of preparation protocols using different fixation and drying methods, as well as imaging under room- and cryogenic temperatures. We compare and assess method complexity to the visibility of the spore exosporium and spore appendages across different methods. Additionally, we use Haralick texture features to quantify the differences in spore surface appearance and determine the most suitable method for preserving spore structures and surface features during SEM evaluation. The findings from this study will help establish protocols for preparing bacterial spores for SEM and facilitating accurate and reliable analysis of spores' characteristics.
Crop type discrimination through low cost proximal RGB imaging and multivariate analysis
Authors: Banerjee Koushik , Dutta Suman , Das Bappa , Roy Debasis , Sen Suman , Mandal Bhabani Prasad , Chatterjee Arghya 
Published: November 2023

Abstract
The current study is an attempt to use low cost red green blue (RGB) image based vegetation indices (VIs), obtained from simple RGB camera, in separating six different field crops. To achieve this, sixteen common VIs were calculated and used as inputs in different multivariate analysis for separating wheat (Triticum spp), mustard (Brassica spp), cabbage (Brassica oleracea), pigeon pea (Cajanus cajan), brinjal (Solanum app) and chickpea (Cicer arietinum). Based on the variation in the green red ratio index (GRRI), Colour intensity index (INT), Color index of vegetation (CIVE) and Woebbecke index (WI) were identified performing significantly (p < 0.05) in discriminating six different crops e.g., cabbage, wheat, mustard, brinjal, pigeon pea, chick pea through classification and regression tree (CART) analysis. The results obtained from CART analysis were subsequently compared with discriminant analysis, which showed an accuracy of 96.3% of classifying different crops. The study meaningfully identified sensitive VIs that can be used to classify different field crop. The information achieved in this study can help in commercial and scientific decision making, planning in agribusinesses, and can be an important tool for conducting crop survey at regional scale.
Neuron-type-specific optogenetic stimulation for differential stroke recovery in chronic capsular infarct
Authors: Kim Hyoung-Ihl , Kim Ra Gyung , Cho Jongwook , Park Ji-Young , Kim Young Ro , Lee Min-Cheol 
Published: November 2023

Abstract

Cortical electrical stimulation (CNM) is widely used to promote recovery after stroke. Despite beneficial results, current CNM techniques are unable to differentiate the roles played by different neuron types in their effects. Our aim was to use selective optogenetic cortical stimulation to explore how different subpopulations of neuronal cells contribute to post-stroke recovery. We transduced sensory-parietal cortex (SPC) in rats with CamKII-ChR2 (pyramidal neurons), PV-ChR2 (parvalbumin-expressing inhibitory neurons), or hSyn-ChR2 (pan-neuronal population) before inducing photothrombotic capsular infarct lesions. We found that selective stimulation of inhibitory neurons produced significantly greater motor recovery than stimulation of excitatory neurons or the pan-neuronal population. Furthermore, 2-deoxy-2-[18F] fluoro-D-glucose microPET (FDG-microPET) imaging revealed the significant reduction of cortical diaschisis and activation of corticostriatal neural circuit, which were correlated with behavioral recovery in the PV-ChR2 group. The spatial pattern of brain-derived neurotrophic factor (BDNF) expression was evident in stimulated cortex and underlying cortico-subcortical circuit. Our results indicate that plasticity of inhibitory neurons is crucial for functional recovery after capsular infarct. Modifying CNM parameters to potentiate the stimulation of inhibitory neurons could enhance post-stroke outcomes.