bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of the COVID-19 Pandemic on Students’ Motivation in Relation to Asynchronous Anatomy Video Lectures
Authors: Cardoso-Júnior Aloisio , Faria Rosa Malena Delbone 
Published: February 2022

Abstract
Objectives
This study aimed to investigate medical students’ motivation in relation to asynchronous anatomy video lectures, carried out during COVID-19 remote teaching.
Methods
Repeated cross-sectional modified Instructional Materials Motivation Survey questionnaire, validated in Brazil, was applied to 255 students attending the first semester of the undergraduate medical course at the José do Rosário Vellano University, in June 2020 and November 2020. The data were analyzed considering the 95% confidence level as significant (p < 0.05).
Results
The overall score of motivation attributed by the students was moderate to high (3.7/5, 74%). The same occurred in relation to all dimensions of the instrument: Interest (3.6/5, 72%), Confidence (3.7/5, 74%), Attention (3.5/5, 70%) and Expectation (3.7/5, 74%). Cluster analysis showed that 78% (n = 168) of the students had moderate (72% of the maximum score) or high (86% of the maximum score) degrees of motivation. The influence of social isolation on the students’ emotional state did not affect the overall motivation scores (p = 0.217) or the dimensions of motivation: Interest (p = 0342); Confidence (p = 0.061); Attention (p = 0.625) and Expectation (p = 0.094).
Conclusions
The students showed high motivation for the asynchronous video lectures of human anatomy. Although the majority of students are highly affected regarding their emotional state, due to the social isolation imposed by the Covid-19 pandemic, this fact did not interfere with the motivation for video lectures, probably due to the high intrinsic motivation that students in the first year have in relation to anatomy. These findings alert to the importance of asynchronous video lectures as an adequate strategy for the teaching and learning of human anatomy.
Successive Products Approach and its Application for Binomial Numbers Extensions from the Natural to the Integer Domain
Authors: Moesia Marlo , Karam-Filho Jose , Giraldi Gilson Antônio 
Published: February 2022

Abstract
This work starts presenting recursive equations in the domain of sequences indexed by integers and their solutions obtained by applying the successive operations introduced in Moesia (2017). Following the original approach, the methodology is developed considering the traditional algebraic group structure. Starting from the dual interpretation of recursions, the notion of successive operations applied on sequences indexed by integers is revisited and some properties highlighted. More important, the successive operations approach is a general way to study previously extended functions from N to Z. As a demonstration of this capability, a class of binomial numbers extensions from the natural domain to the integer one is established here, allowing seeing that different pre-existing extensions of binomial numbers are, in fact, particular cases of just one general extension, developed in this work through the successive product machinery. To exemplify, binomials derived from two known factorial extensions are represented in this framework and their most known recursive expressions are studied. From this study it is also verified that by using the successive product it is possible to avoid extensive demonstrations required by standard methods, resulting in remarkably short and simple proofs.
Multi-Response Optimization and Prediction of Tribological behaviours of Filled Polytetrafluoroethylene Composites Using Taguchi-Deng and Evolutionary Harris Hawk’s Optimization Methodologies
Authors: Ibrahim Musa Alhaji , Çamur Hüseyin , Savaş Mahmut A. , S.I. Abba 
Published: February 2022

Abstract
Filled polymer composites are widely used for automobile, structural and aerospace components owing to their exceptional combination of high specific stiffness and strength. This study presents Taguchi-Deng optimization of tribological parameters such as load, grit size, distance and speed as well as prediction of tribological behaviours of carbon-filled and bronze-filled polytetrafluoroethylene (PTFE) composites using pin on disk configuration. A plan of experiments based on Taguchi L27 (43) orthogonal array (OA) was designed to collect data in a controlled manner. The Taguchi L27 (43) was hybridized with Deng model to produce grey relational grades (GRG) for the multiple response optimization. Analysis of variance (ANOVA) was executed to establish the parameters affecting GRG of the composites. For the prediction of the tribological behaviours of the composites namely coefficient of friction (µ) and specific wear rate (Ks), support vector regression (SVR) was coupled with novel Harris Hawks’ optimization (HHO) and swarm particle optimization (PSO) forming SVR-HHO and SVR-PSO models respectively, were employed. Prediction accuracy of the models were appraised using coefficient of determination (R2), correlation coefficient (R), root mean square error (RMSE) and mean absolute percentage error (MAPE). GRG results revealed that optimum parameters which reduced tribological behaviours were factor combination L3G1D3S3. ANOVA for GRG reveled that grit size with 68.57% ranks as the most influential parameter followed by load with 20.57%, followed by distance having a contribution of 7.78% and finally speed with least contribution of 3.38% for minimum tribological loss. Validation performed using optimum parameters revealed an enhancement of 55% in GRG. Prediction accuracy of the single model increase to 19.50% and 57.08% on the average for hybrid µ and Ks models, respectively. Furthermore, SVR-HHO model indicated the higher prediction accuracy of the tribological behaviours of filled PTFE composites as compared to SVR-PSO model. These findings concluded these metaheuristic models are promising in predicting tribological behaviours of filled PTFE composites and thus can serve as a guide in the design and development of tribological materials.
Examining a Continuous Glucose Monitoring Plus Online Peer Support Community Intervention to Support Hispanic Adults With Type 2 Diabetes: Protocol for a Mixed Methods Feasibility Study (Preprint)
Authors: Ng Ashley H , Greenwood Deborah A , Iacob Eli , Allen Nancy A , Ferrer Mila , Rodriguez Bruno , Litchman Michelle L 
Published: February 2022

BACKGROUND

Type 2 diabetes is twice as likely to affect Hispanic people than their White counterparts. Technology and social support may be an important part of behavior change. In this study, we address gaps in diabetes care for Hispanic Spanish-speaking people with diabetes through an online peer support community (OPSC) pilot intervention using Hispanic Spanish-speaking peer facilitators with diabetes to enhance the use of continuous glucose monitoring (CGM) for diabetes management.

OBJECTIVE

This study aims to address gaps in diabetes care for Hispanic Spanish-speaking people with diabetes through an OPSC pilot intervention using Hispanic Spanish-speaking peer facilitators with diabetes to enhance the use of CGM for diabetes management.

METHODS

A mixed-methods, pre-post test design will be used in this feasibility study. A total of 50 Hispanic participants with type 2 diabetes willing to wear a continuous glucose monitor for 13 weeks will be recruited. Hispanic Spanish-speaking peer facilitators with diabetes and experience wearing a continuous glucose monitor will be employed and undergo training. Peer facilitators will help participants learn how CGM data can inform behavior changes via an OPSC. Participants will interact with the private OPSC at least three times a week. Weekly questions and prompts derived from the Association of Diabetes Care and Education Specialists, previously American Association of Diabetes Educators, and seven self-care behaviors will be delivered by peer facilitators to engage participants. Measures of feasibility and acceptability will be determined by the percentage of participants who enroll, complete the study, and use CGM (number of scans) and objective metrics from the OPSC. Efficacy potential outcomes include change in time in range of 70 to 180 mg/dL from baseline to 12 weeks, A<sub>1c</sub>, diabetes online community engagement, self-efficacy, and quality of life. Additionally, semistructured exit interviews will be conducted.

RESULTS

Funding for this project was secured in November 2018 and approved by the institutional review board in April 2019. Peer facilitator recruitment and training were undertaken in the second half of 2019, with participant recruitment and data collection conducted in January and April 2020. The study has now concluded.

CONCLUSIONS

This study will generate new evidence about the use of an OPSC for Hispanic Spanish-speaking patients with diabetes to make behavior changes incorporating feedback from CGM.

CLINICALTRIAL

ClinicalTrials.gov NCT03799796; https://clinicaltrials.gov/ct2/show/NCT03799796

INTERNATIONAL REGISTERED REPORT

RR1-10.2196/31595
Potential of orchid as antifungal agent resources: a scoping review
Authors: Furqi Sholekhatun Sityardi  , Sufi Desrini  
Published: February 2022

In 2017, one billion people contracted fungal infection with 11.5 million people contracted life-threatening infection and 1.5 million death per year. Orchid is a plant that grows in tropical and sub-tropical countries, the same places where fungal infection occurrence is high. On previous studies reported that orchid contains alkaloids and polyphenols such as flavonoid, and phenol acid. The review aimed to identify the orchid as a potential antifungal resource. A scoping review was used. The type of articles reviewed were original articles obtained from five electronic journal databases published within 2012-2021. Three articles reported similar result which was that orchid extract has a significant antifungal activity although the part of plant used was different, ranging from the root, to the leaf. Two articles reported a specific antifungal activity against Candida albicans while the remaining one against Trichophyton rubrum. In conclusion, the root, leaf, branch, and flower extracts of orchid is potential antifungal resources.
Au-Ru nanoparticles in catalysis, analysis from first-principles calculations
Authors: Molina Tenrreyra Uriel Omar , Mojica Molina Rodrigo Hebert , Torres Hernández Ana Elizabeth 
Published: February 2022

Nobel-metal based bimetallic nanoparticles (BNPs) are composed of two different metals presenting heteroatom interactions. In these nanomaterials it is possible to tune the relative composition that allows for the modulation of electronic and catalytic properties. They are of great interest for their technological and industrial applications due to their catalytic properties which may exceed those of their monometallic analogue structures. A theoretical perspective on the electronic, stability and reactivity related properties of gold, ruthenium and Au-Ru nanoparticles is presented herein. This analysis considered the use of first-principles methods and the cluster approach to get a physical insight into the novel properties that arise from the combination of two metals in the nano and sub-nano scale. Au-Ru BNPs may present a higher catalytic efficiency than the monometallic structures due to the synergy between the metals in the CO oxidation reaction. However, the effect of Ru over the Au-based NPs on their enhanced catalytic activity is not well understood. A density functional theory (DFT) study of one Au-Ru cluster model was performed to analyze its electronic properties and to gain a better understanding in the stability of structures with various metal compositions.
Based on the computed mixing enthalpy, the Au-Ru cluster with a core-shell type morphology and a relative composition close to 1:0.75 was determined as the most stable one. Finally, a CO oxidation reaction pathway different from that determined for Au-NPs was presented for the free particle occurring in the Au-Ru interface. O2 may undergo adsorption on a Ru site through a dissociative process. The computed CO oxidation barrier height is lower than that found for the monometallic Ru clusters but is higher than that determined for Au clusters. This study will guide further research on this kind of model nanostructures in heterogeneous catalysis.
‘Culture as a Verb’ and ‘Otherness’: Reflections on Conceptual Threads from Brian Street’s Early Writing
Authors: Castanheira Maria Lucia , Santos Juliana 
Published: February 2022

This text re-examines the early and ongoing work of Brian Street and highlights the lasting relevance of Street’s analysis of “ethnographic novels” presented in the book The Savage in Literature: Representations of ‘primitive’ society in English fiction 1858-1920. First, it presents an overview of Street’s analysis of representations of ‘primitive society’ in “ethnographic novels”, then, it identifies two conceptual threads – ‘culture as a verb’ and ‘otherness’ –, whose roots can be found in this book, and that Street continued to develop throughout his academic career. The paper argues that Street’s early work speaks directly to those concerned today with examining power relationships in colonial and post-colonial contexts.
[Content warning: this article contains discussion of historical terms related to scientific racism from 19th and early 20th century literature]
Brian Street Memorial Issue. A Note About the Formative Years
Authors: Singer André 
Published: February 2022

The importance and influence of the teaching and writing of Brian Street had already been globally recognised by the time of his untimely death in 2017. He was inordinately modest but would have been nonetheless proud to see this gedenkschrift from friends and colleagues highlighting the reasons he had become such a presence in both the worlds of anthropology and literacy. Here I want to reflect briefly on some of the personal influences and experiences that helped shape that intellectual progress during its formative years.
Development of Discovery Learning Based Science Learning Model Oriented Character Education
Authors: Cayati  , Upu Hamzah , Mustafa  
Published: February 2022

Development of discovery learning based science learning model-oriented character education. This research aimed to determine the validity, practicality and effectiveness of science learning model development based on discovery learning oriented character education of class IV Elementary School in Pallangga Subdistrict of Gowa Regency. This study applied kinds of Research and Development (R & D) related to Borg and Gall model. Data collection used observation, questionnaire, documentation, interview, validity sheet, practicality and effectivity of product. Data were analyzed by using descriptive narrative and inferential statistics. The results of study indicated that: (1) validity and practicality of discovery learning development based science learning model oriented character of class IV Elementary School in Pallangga Subdistrict of Gowa Regency whit a very valid category or very feasible ot used and very practical; and (2) the effectiveness of discovery learning based science learning model oriented students’ character education was effective to used at class IV Elementary School in Pallangga Subdistrict of Gowa Regency.
Subsurface Evapotranspiration Irrigation System Design in System of Rice Intensification (SRI) Salibu Paddy Cultivation
Authors: Agustina Hilda , Setiawan Budi Indra , Sugiyanta  , Solahudin Mohamad , Dewi Vita Ayu Kusuma 
Published: February 2022

The System of Rice Intensification (SRI), a water-saving paddy cultivation system, has been implemented in Indonesia. The application of SRI can increase water productivity. The Salibu method applied to paddy cultivation can save seeds, costs, labour and increase the planting index of paddy. However, when used in other areas, the yield is reduced by up to 50 per cent from the first harvest. A combination of cultivation and water management is needed to save water and increase paddy production. The method used in this research is experimental research. The design of the irrigation system was made according to the technical design, then tested for automatic water management. The design was tested with the SRI Salibu method. The data are climate data, water level, water discharge, and water content. The climate data used are temperature and solar radiation to determine potential evapotranspiration. The results of observations of water depth, the volume of water in the system, the water content in the media, water entering the system (rain infiltration, irrigation discharge), and water leaving the system (runoff, discharge) are entered into the water balance equation (water balance). The plant coefficient value is included in the water balance equation as a plant coefficient factor multiplied by the potential evapotranspiration value. Then the plant coefficient value for each observation is optimized by reducing the error value to get the coefficient value for SRI Salibu. The results showed that the appropriate evapotranspiration irrigation system for SRI Salibu paddy cultivation is the fifth irrigation system design. The fifth irrigation system design can produce 4.7 tons/ha of paddy (SRI method) and produce SRI Salibu paddy yields of 8 tons/ha. The irrigation water for SRI paddy cultivation is 1738 litres, and the water production is 1.2 kg/m3.
Decreasing Phosphorus Fertility to Reduce Sweetpotato Root Growth During Container-grown Transplant Production
Authors: Rouse L. , Beasley J. , LaBonte D. , Kuehny J. 
Published: February 2022

AbstractSweetpotato [Ipomoea batatas (L.) Lam.], grown as an edible ornamental, is propagated in home gardens using locally purchased transplants. However, vigorous growth of sweetpotato limits the period of transplant salability due to root confinement. The objective of the experiment was to evaluate reductions in phosphorus (P) fertility to slow transplant root growth and extend the period of salability. Cuttings were planted into containers and fertilized at 0, 5 (0.0007), 10 (0.0012), 15 (0.0020), 20 (0.0024), and 31 mg P.L −1 (0.0040 oz P.gal−1) using a modified Hoagland solution. All transplants fertilized at ≥5 mg P.L −1 increased in shoot length, color, and biomass during the first four weeks after planting (WAP) but declined thereafter. Transplant roots fertilized at ≥5 mg P.L −1 (0.0007 oz P.gal−1) increased in total length, surface area, and volume throughout the six-week production cycle. However, P fertility &lt;15 mg.L -1 (0.0020 oz P.gal−1) resulted in narrower storage roots with lower root volumes. Reducing P fertility from 31 (0.0040 oz P.gal−1) to 5 mg L −1 (0.0007 oz P.gal−1) did not sufficiently slow transplant rooting to prevent roots from reaching container walls to extend the period of salability.Index words: root length, root diameter, root biomass, and root architecture.Species used in this study: Sweetpotato [Ipomoea batatas (L.) Lam.].
PENGARUH PERCEIVED USEFULNESS DAN PLAYFULNESS TERHADAP INTENTION TO USE PENGGUNA APLIKASI TIK TOK DI MASA PANDEMI COVID 19
Authors: Kristiani Nuning , Putri Shahnaz Wirenta 
Published: February 2022

Penelitian ini bertujuan untuk mengetahui perilaku pengguna aplikasi Tik Tok dan bagaimana serta intensi penggunanya. Pengukuran perilaku yang digunakan adalah persepsi kegunaan<em> (perceived usefulness</em>) dan persepsi<em> </em>kesenangan (<em>perceived playfulness</em>) sebagai varibel yang diduga mempengaruhi <em>intention to use pengguna </em>aplikasi Tik Tok sebagai varibel terikatnya. Penelitian yang dilakukan pada masa pandemi covid 19 ini menggunakan respoden sebanyak 160 orang yang didominasi oleh jenis kelamin wanita, berusia 17-25 tahun serta memiliki pekerjaan sebagai seorang pelajar. Hasil penelitian membuktikan bahwa <em>perceived usefulness dan perceived playfulness </em>berpengaruh positif dan signifikan terhadap<em> intention to use </em>pengguna aplikasi Tik Tok. Simpulan yang didapatkan dari studi ini adalah pengguna aplikasi Tik Tok merasakan manfaat serta mendapatkan perasaan senang dan gembira ketika menggunakannya. Sehingga pengguna aplikasi Tik Tok memiliki niat untuk menggunakan kembali aplikasi tersebut.
Sistem Persuratan Digital Berbasis Virtual Private Network
Authors: Faizal Faizal , Irmayana Andi 
Published: February 2022

<span>Persoalan mengenai persuratan yang dialami oleh instansi pemerintah, organisasi dan perusahaan swasta yang terkendala dalam proses database surat masuk dan surat keluar yang dilakukan secara manual. Ada berbagai kendala seperti pendistribusian surat yang tidak efekif, surat tercecer, dan pengarsipan yang tidak rapi sehingga manajemen arsip persuratan tidak terkontrol. Penelitian ini bertujuan merancang sebuah digital proses untuk memperbaharui sistem persuratan pada Karang Taruna Provinsi Sulawesi Selatan agar dokumen verifikasi, persuratan organisasi dan pertukaran Informasi antar Instansi terkait menjadi lebih efektif dan aman dengan pemanfaatan Teknologi Virtual Private Network (VPN). Penelitian ini menggunakan metode eksperimen dalam hal pembuatan program menggunakan bahasa pemrograman web dan database MySQL. Penelitian ini berjenis penelitian kualitatif, dimana sistem yang dihasilkan akan diuji spesifikasinya, baik itu spesifikasi keamanan maupun spesifikasi fungsional menggunakan metode pengujian black box. Teknologi virtual private network berhasil deterapkan pada manajemen persuratan dan telah diuji dimana sistem seluruhnya telah sesuai dengan skenario pengujian untuk semua fungsi pada sistem. Melalui sistem yang dibuat pada penelitian ini, menciptakan fasilitas pertukaran surat yang menarik, dapat dijangkau dimanapun dan kapanpun serta menjaga kerahasiaan dan keamanan dokumen bagi instansi pemerintahan.</span>
ANALISIS PENGELOLAAN PIUTANG DAN POTENSI PIUTANG YANG TIDAK TERTAGIH SEBAGAI TINDAK LANJUT KEBIJAKAN PEMBAYARAN KREDIT PADA BIMBINGAN BELAJAR X DI MADIUN
Authors: Hardiyanti Rizka 
Published: February 2022

<em>This study aims to analyze the management accounts and the potential doubtful as a follow-up loan payments policy on tutoring X in Madiun. Accounts receivable is one type of accounting transactions dealing with the billing of consumers is owed on a person, a company, or an organization for goods and services that has been given to the consumer. Results of research conducted at the Institute of tutoring X in Madiun, the researchers conclude that the management of receivables and the potential doubtful at a tutoring agency X in Madiun there have been improvements in the new school year 2016-2017. So in the new academic year 2015-2016 is no longer doubtful, but still no payment policy on credit to be paid each maturity. <strong>Keywords: </strong>Receivables Management, Potential Accounts Receivables photo and Follow-Up Credit Policy</em>
PENENTUAN DIVIDEND PAYOUT RATIO: BUKTI EMPIRIS PADA PERUSAHAAN LQ 45 DI INDONESIA
Authors: Sriyono Sriyono , Andriana Andriana 
Published: February 2022

<p><em>The determination of the dividend payout ratio is a crucial decision in a company, on the company's side must add satau capital for operations while on the other hand the company must retain investors. This research aims to find out what variables affect the stability of the Dividend Payout Ratio on the company's LQ45 listed in Indonesia stock exchange period 2012-2016. Sampling technique used is the method of purposive sampling, data analysis using Technical data analysis panel. The results of this research found a connection between the variable profitability, Leverage, size of company, Earning per share against the Dividend Payout Ratio. Conclusion of this research is the variable size of the influential company profitability and significantly to the stability of the Dividend Payout Ratio, while the Leverage Earning per share is not significant effect against the Dividend Payout Ratio.</em></p><p> </p>