bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigating the Intrinsic Motivation among Second Language Learners in Using Digital Learning Platforms during the Covid-19 Pandemic
Authors: Ali Zuraina
Published: February 2022

The study aims to investigate the intrinsic motivation among L2 in their uses of digital learning platforms during the Covid-19 pandemic. In particular, the central questions in the study are to identify the profiles of intrinsic motivation among L2 learners using digital learning platforms, determine gender differences using digital learning platforms, investigate the difference in motivation according to students’ performances, and describe the perceived enjoyment of using digital learning platforms. The study that used a questionnaire to collect data among 72 engineering students found positive intrinsic motivation utilizing the medium to learn English. However, there was insufficient evidence to show a difference between gender using the digital learning platforms with intrinsic motivation. There was also insufficient evidence to prove that grades are associated with students’ intrinsic motivation when the teacher assigned synchronous or asynchronous classroom tasks. Yet, the present study found that publishing works in Canva and writing posts on LinkedIn were among the students’ most preferred digital learning platforms activities. The study is significant to teachers since it assists them in managing classes and discovering the uses of digital learning platforms for a conducive learning atmosphere during the pandemic. It is recommended that teachers be creative in using digital learning platforms to promote collaborative learning among learners.
Varieties of Enforcement Strategies post-GDPR: A fuzzy-set qualitative comparative analysis (fsQCA) across data protection authorities
Authors: Sivan-Sevilla Ido
Published: February 2022

This study explores the divergence in data protection enforcement strategies among national agencies. Whereas the literature on cross-national enforcement practices is scarce, this study develops a scale for data protection enforcement strategies and measures and compares enforcement choices across agencies. Based on survey responses from 18 DPAs, interviews with DPA employees, and secondary sources on GPDR implementation, the paper clusters DPAs based on enforcement strategies, analyzes cross-national variations, and investigates misalignments between strategy and actions. Using Fuzzy-Set Qualitative Comparative Analysis, the paper tests how bureaucratic and political contexts – organizational capacities, budget sources, and issue saliency – impact enforcement choices. Almost half of studied DPAs reflect high deterrence by their strategy, but for many of them, lack of resources and expertise inhibits the translation of strategy into practice. This study provides a starting point for understanding the national impacts of Europeanization post-GDPR, adding empirical support for theorizing about enforcement across the EU.
A Systematic Review of Online Learning during COVID 19: Students’ Motivation, Task Engagement and Acceptance
Authors: Mohtar Mujahid , Yunus Melor Md
Published: February 2022

The COVID 19 pandemic has forced the education sector to switch to online learning. To make the transition a success, there is a need to understand students’ perception towards online learning and design a learning experience around it. Thus, the aim of this paper is to identify students’ perceptions towards online learning in terms of motivation, task engagement and acceptance. The systematic literature review method was used to search for relevant papers and synthesize the findings. 40 articles from the year 2020 obtained from Google Scholar. It is found that the most used method in studying students’ perception is the quantitative method and students’ acceptance was the most discussed topic. It is also found that the primary factors influencing motivation and acceptance are sense of ownership and accessibility respectively. In terms of task engagement, only half of the findings reveal that students are engaged in online learning. In summary, the three main constructs are important items that should be taken into consideration when teaching an online course to ensure the success of the course. Through this systematic review, future research can identify and explore different areas and perspectives on this topic.
Impossible Asks: Can the Transparency and Consent Framework Ever Authorise Real-Time Bidding After the Belgian DPA Decision?
Authors: Veale Michael , Nouwens Midas , Santos Cristiana
Published: February 2022

Michael Veale, Midas Nouwens and Cristiana Santos, ‘Impossible Asks: Can the Transparency and Consent Framework Ever Authorise Real-Time Bidding After the Belgian DPA Decision?’ (2022) 2022 Technology and Regulation 12.On 2 February 2022, the Belgian Data Protection Authority handed down a decision concerning IAB Europe and its Transparency and Consent Framework (TCF), a system designed to facilitate compliance of real-time bidding (RTB), a widespread online advertising approach, with the GDPR. Here, we summarise and analyse this large, complex case. We argue that by characterising IAB Europe as a joint controller with RTB actors, this important decision gives DPAs an agreed-upon blueprint to deal with a structurally difficult enforcement challenge. Furthermore, under the DPA’s simple-looking remedial orders are deep technical and organisational tensions. We analyse these “impossible asks”, concluding that absent a fundamental change to RTB, IAB Europe will be unable to adapt the TCF to bring RTB into compliance with the decision.
Spousal Visa Policy and Mixed-Citizenship Couples: Evidence from the End of the Defense Of Marriage Act
Authors: Redpath Connor
Published: February 2022

I compare mixed-citizenship couple formation under an immigration policy granting spousal visas to one without spousal visas, by leveraging federal same-sex marriage recognition from ending the Defense of Marriage Act. I estimate changes in mixed-citizenship same-sex couple counts and marriage counts, accounting for changes in other same-sex and other mixed-citizenship couples, using a triple difference design. Spousal visa access increases mixed-citizenship coupling by 36%, and mixed-citizenship marriages by 78%. Transfer benefits, health insurance, roommates, moving, or state-level heterogeneity do not explain the results. Informal calculations suggest 1.5 million people are currently together thanks to spousal visas.
Oral English Development in Virtual Class among Chinese Learners through Three Ways of Talking
Authors: Yang He , Salam Abdul Rahim
Published: February 2022

Chinese learners are poor at oral English owing to a lack of practice. There is a high demand for opportunities to practice oral English effectively. This study investigates the use of three educationally significant ways of talking to Chinese learners’ meaningful oral English development in one-to-one Computer- and Internet-Based Virtual Classes (CIBVC). It is a qualitative case study including two sets of data that contain 64 video-recorded lessons. One set of data are 32 class recordings from one participant as the primary data and the other are from another four participants as the supplementary data. Thematic analysis is employed to carry out this study and computer-assisted qualitative data analysis software is utilized to assist. The findings of this study discover effective ways of using the three ways of talking to conduct oral English teaching and learning practice. The results contribute to research into relating authentic communication in CIBVC to the discovery of effective oral English practice. Obtained practical implications are valuable references as predictors of successful teaching and learning outcomes.
Teachers’ Perspectives towards Teaching English Online at the Tertiary Level in Saudi Arabia
Authors: Algethami Ghazi
Published: February 2022

The drastic and unplanned shift to online teaching caused by the Covid-19 pandemic offers researchers with unprecedented opportunity to examine a wide range of issues related to online language teaching and assessment. The current study surveyed English language teachers (N = 161) from several Saudi universities regarding their experience with teaching English online. Five themes were explored: institutions’ resources and technical support, knowledge and training, attitudes, effectiveness of teaching and assessment, and overall experience. The results demonstrate the readiness of Saudi universities for online teaching in terms of resources and technical support. In addition, teachers were found to have the necessary knowledge and training needed to carry out their online teaching and assessment. Teachers’ attitudes were mixed towards teaching English online, which may be due to personal preferences and different teaching contexts. The same was also found for their opinions towards the effectiveness of online teaching and assessment as compared to in-person teaching and assessment. While the teachers’ experiences were largely positive towards online teaching, concerns were raised regarding student engagement and assessment reliability. Saudi universities are recommended to capitalize on what they have achieved during the pandemic and offer innovative solutions to enhance assessment reliability and student engagement
Using Google Maps to Generate Organizational Sampling Frames
Authors: Fulton Brad R. , King David P.
Published: February 2022

Organizational researchers use a variety of methods to obtain sampling frames. The utility of these methods, however, is constrained by access restrictions, limited coverage, prohibitive costs, and cumbersome formats. This article presents a new method for generating sampling frames for any type of organization that is cost-effective, uses publicly available data, and produces near-comprehensive sampling frames for any geographic area in the U.S. The Python-based program we developed systematically scans the Google Maps platform to identify organizations of interest and retrieve their contact information. We demonstrate the program’s viability and utility by generating a sampling frame of religious congregations in the U.S. To assess Google Maps’ coverage and representativeness of such congregations, we examined two nationally representative samples of congregations and a census of every congregation in Indianapolis. We found that Google Maps contains approximately 98% of those congregations––near-complete coverage that ensures a near-perfect degree of representativeness. Using Google Maps to generate sampling frames promises to substantially improve the process for obtaining representative samples for organizational studies by reducing costs, increasing efficiency, and providing greater coverage and representativeness.
EFL Students’ Self-Regulated Learning Strategies during the Covid-19 Pandemic
Authors: Hung Minh
Published: February 2022

In the current contexts of Vietnam, college students are taking entirely or partially online courses due to the spread of the Covid-19 pandemic. Thus, students should develop and optimally employ self-regulated learning strategies for effective learning outcomes. Research also indicates that self-regulation among students is linked to the 21st century skills. With this in mind, the present study attempts to investigate the self-regulated learning strategies of English-as-a-foreign-language (EFL) students from a local university in Vietnam. The study aims to identify EFL students’ self-regulation level, correlation between their two cognition knowledge and cognition regulation, and the correlation between their self-regulation level and GPA. Data is collected via a survey questionnaire encompassing two core components of cognition knowledge and cognition regulation. The results show a high level of the involved students’ self-regulation, a correlation between their cognition knowledge and cognition regulation, but a gap between their self-regulation level and GPA. On the obtained findings, pedagogical implications are addressed, and further research is suggested.
Discoveries-Through-Prose: Venturing through the Doors of Perception
Authors: Piazza Alessandro , Reese Daniel , Chung Sung Hun
Published: February 2022

As anyone who has funded a startup knows from experience, a strong founding team is a prerequisite for new venture success. But are skilled founders essential because they make the business run well? Or are they needed because they impress potential investors, thus attracting more funding? To find an answer, one must distinguish the genuine skills and experience of the founding team—that is, actual expertise—from how the founding team presents itself, which we label expertise signaling. We analyze data on 4,190 new ventures drawn from CrunchBase and self-styled profiles that the founders of these companies posted on LinkedIn. Both in terms of liquidity events and amount of capital raised, we found, expertise signaling by startup founders played a significant role in company success. To be sure, when predicting a liquidity event, actual expertise was still the strongest predictor. But when it came to raising funds, we were surprised to discover that founders’ expertise signaling was actually a more powerful predictor than their actual background and experience. Our findings have important practical implications and highlight the need for better theories of the role of the founding team in entrepreneurship and venture financing.
Clutter and Compliance: Scooter Parking Interventions and Perceptions
Authors: Klein Nicholas J. , Brown Anne , Thigpen Calvin
Published: February 2022

Shared e-scooter programs often generate complaints about improper parking because it create unappealing clutter and can make it difficult for pedestrians to use the sidewalk. We examine how cities can address noncompliant scooter parking and explore public perceptions of this problem with two related studies. First, we conducted field experiments in Washington, DC (hereafter "DC"), and Auckland, New Zealand. We observed scooter parking and then evaluated the efficacy of three interventions to mitigate noncompliant parking. We find low rate of noncompliance, but the precise rate is highly dependent on how we define noncompliance. We also find that in-app message reminders and sidewalk decals marginally lowered rates of noncompliant parking, but the largest improvement in compliance occurred after DC implemented a requirement that scooters be physically locked to bike racks. Second, we examined public perceptions of improper parking by asking people how much noncompliant parking they think occurs and what practices they think constitute noncompliant parking. We find that the public overestimates improper parking of scooters and underestimates improper parking of bicycles and cars. Given their unfamiliarity with scooter parking regulations, respondents use pedestrian accessibility and tidiness as heuristics to determine what counts as proper scooter parking.Our results suggest that intuitive parking solutions that align with perceptions of orderly parking, such as bike racks or on-street parking corrals, can improve rider compliance and may reduce public dissatisfaction with shared scooter parking.
Attitudes of learners at the Arabic Language Institute at King Abdulaziz University towards Online Collaborative Writing during Covid-19 Pandemic
Authors: Alwaleedi Mohammed
Published: February 2022

This study aims to examine learners’ attitudes at the Arabic Language Institute at King Abdulaziz University towards online collaborative writing during the Covid-19 Pandemic. The study was conducted in the first semester of the academic year 2021/2022. The study participants are students from the language Institute of King Abdul-Aziz University, Saudi Arabia. Forty-three students (19 males and 24 females) constituted the study population. The researcher administered a 30-item questionnaire. The results revealed that the participants held positive attitudes towards utilizing online collaborative writing activities. Moreover, they enjoyed the experience and considered online collaborative activities to be worthwhile experience. Additionally, they indicated that it improved their fluency and accuracy in writing and vocabulary use. However, they listed some challenges like lack of time and lack of equal participation from all participants. Finally, the researcher concluded with some recommendations.
Interaction in E-Learning Setting through Teaching English as Foreign Language by Native-English Teachers: E-Classroom Discourse
Authors: Khotaba Eissa. Al
Published: February 2022

This survey investigated the interaction of e-learning settings through teaching English as a foreign language by native-English teachers. It examined the instructional virtual environment in teaching EFL at the University of Tabuk in Saudi Arabia during the COVID-19 crisis during the academic year 2019/2020. Sample consisted of 20 informants. Participants were selected randomly divided into two groups (experimental 10 and control 10). Experimental group used media tools such as blackboard, zoom, interactive board, the control group used the conventional method. Pre-and post-questionnaires were distributed to both groups after completing teaching units. Results showed that there are statistically significant differences at level (0, 05) for the means of achievement test for both groups in favor of the experimental group through the interactive board. The findings revealed that there are statistically significant differences at level (0, 05) in developing attitudes of teachers towards linguistic subjects due to the use of the interactive board. The research recommends that media; blackboard, zoom, and the interactive board should be activated in teaching all subjects not only the time of crisis but also in normal times since it has a positive effect on the achievement of teachers and increases their attitudes towards teaching EFL any time any place.
The Use of Blackboard in the Practice of English-Speaking Skills among Saudi EFL Learners during COVID-19
Authors: Al-Oqaily Emran Ismail , Salam Abdul Rahim , Na Kew Si
Published: February 2022

The current coronavirus (COVID-19) epidemic caused a temporary halt to educational activities around the world. The abrupt and fast shift from regular face-to-face learning to fully online learning altered the students’ impressions toward the Blackboard application and its use. It is important to have an in-depth analysis of the effectiveness of using the blackboard platform in developing students’ skills. The current study included a review of both quantitative and qualitative papers according to their relevance to the Saudi context to get a clearer image about the use of blackboard in building up Saudi EFL learners speaking skills. The purpose of this study is to address and review the studies that investigate students’ perceptions of the Blackboard program as a mere tool of learning English courses in Preparatory Year, as well as the impact of those perceptions on students’ use of Blackboard. This work underlines previous literature associated with blackboard as a platform in the practice of speaking skills in the English language among Saudi English as Foreign Language (EFL) Learners. It is meant to provide an overview of how Blackboard computer and internet-based virtual class (CIBVC) is used to overcome Saudi EFL learners’ difficulties in English-speaking skills and describes their speaking ability from the perspectives of accuracy, fluency, and Anxiety. This work suggests that the students’ earlier knowledge of online learning via Blackboard has a positive impact on their perceptions. It also contributed to online learning of English language speaking skills and the learning via the online learning platforms’ research field during the outbreak of COVID-19 pandemic.
Exploring the Impact of the COVID-19 Pandemic on Rural English FAL Teachers’ Lesson Planning
Authors: Mokoena Mosebetsi
Published: February 2022

The Coronavirus (COVID-19) has disrupted the process of teaching and learning in various ways. In particular, lesson planning in rural English first additional language (FAL) classrooms has been disrupted. As a result, there is a need to explore the impact of the COVID-19 pandemic on rural English FAL teachers’ lesson planning. To achieve this aim, these questions remain central to this study: How does the COVID- 19 pandemic disrupt the typical teaching plans of English FAL teachers in a rural context? How do rural English FAL teachers respond to the challenges of the phased- in and rotational approaches during the COVID-19 pandemic? The study follows a qualitative research design and uses Document Analysis to generate data from the eleven participants whose responses are analyzed thematically. The findings reveal that rural English FAL teachers face challenges when planning lessons amid the COVID-19 pandemic. These include: struggle with committing to the plan, inadequate coverage of content, catering for learners’ educational needs, as well as learner-absenteeism and the need for re-teaching. The paper recommends the following strategies for rural English FAL teachers to circumvent these challenges. They include: incorporating various resources in the lesson plan, integrating active learning activities in the lesson plan, and tailoring lesson plans to meet learners’ educational needs.
Parents’ Work Arrangements and Gendered Time Use During the COVID-19 Pandemic
Authors: Lyttelton Thomas , Zang Emma , Musick Kelly
Published: February 2022

Objective: This study uses time diaries to examine how work arrangements shaped mothers’ and fathers’ time use at home and work during the COVID-19 pandemic. Background: The pandemic transformed home and work life for parents, disrupting employment and childcare. The shift to work from home offered more flexibility than the workplace to manage increased care burdens, but the lack of separation between work and family also likely contributed to more challenging work environments, especially among mothers. Method: This study relies on representative data from the 2017-2020 American Time Use Survey and matching to estimate changes in time use among parents working from home and the workplace in the pandemic relative to equivalent pre-pandemic parents. Results: Data showed no increase among working parents in activities in which childcare was the primary focus. Parents working from home during the pandemic, however, spent substantially more time on supervisory childcare, particularly in combination with paid work, and housework. Mothers working from home also changed their paid work schedules.Conclusion: Parents working from home responded to childcare demands through multitasking and schedule changes, especially mothers, with potential negative effects on work quality and stress. Parents in the workplace during the pandemic experienced smaller changes in time use, suggesting little flexibility to accommodate changes in family life. Implications: The pandemic has generated new inequalities between those with and without the flexibility to work from home, and potentially exacerbated gender inequalities among those working from home.
The evolution of energy poverty theory: a scientometrics approach
Authors: Guevara Zeus , Espinosa Marina , López-Corona Oliver
Published: February 2022

Energy poverty describes a condition of energy-related social deprivation of households, usually associated to inadequate access to energy services, to dissatisfaction of basic energy needs, or to excessive payment for energy. Despite the research has grown significantly and substantial progress has been made, there is still theoretical divergence, and many decision-makers continue having an antiquated definition of the phenomenon, far away from recent advances. To aid advancing the field towards theoretical consensus and pushing recent research achievements into policy-making, the present paper maps the evolution of energy poverty theory through a scientometrics approach applied to 1025 records of the specialized literature in the period 1978-2020. This approach accounts for and synthesizes the information flows among and within the theoretical and authoring spaces of the field, which allows disclosing major themes and trends. The field shows two independent start points: energy poverty with focus on access and basic needs, and fuel poverty (targeting developing and European countries, respectively). The two conceptions remained mostly separated until 2010. Afterwards, their relationships became closer, hence they started influencing each other. More recently, energy justice has gained relevance in the field, leading to broader insights and serving as a conciliatory perspective. Furthermore, there are several central author clusters, which have dominated over the field, mainly focused on European thought, even though with a broader perspective. The evolution of energy poverty theory shows a convergent trend towards a consensual concept. Yet, the field is far from reaching consensus as many works that explore new paths of theoretical and methodological development are added every year . If the field wants to become more globally pertinent, authors should increase collaboration outside their main clusters, and underrepresented countries should increase their participation. The history of the field has been very exciting so far and it will become even more so.
Taiwanese engineering students’ self-efficacy and academic performance
Authors: Phan Nga Thi Tuyet , Chen Cheng-Hu
Published: February 2022

Despite the popularity and the importance of MOOCs in global education in recent years, they have not become the focus of self-efficacy studies. In addition, most available MOOC research resides in Western economies, not in Asian countries. No studies up to this point have explored the change in engineering student self-efficacy before and after they finish a MOOC or the relationship between engineering students’ self-efficacy and academic performance in a MOOC learning environment. This present study examined if there were any changes in the self-efficacy levels of a group of students before and after they attended a blended MOOC on English Technical Writing skills. It explored the relationship between self-efficacy and academic performance and looked for possible differences in self-efficacy and academic performance with respect to different demographic variables. A Paired-samples t-test helped to measure differences in self-efficacy scores at the beginning and end of the course. Pearson correlation was conducted to examine if self-efficacy predicted students’ course grades at the end of the course. Descriptive analysis, t-test, and ANOVA were used to measure the differences between the mean scores of self-efficacy and academic performance regarding different demographic variables. Results showed that students became more self-efficacious after they attended the blended MOOC. Self-efficacy significantly predicted academic performance. Students who reported higher self-efficacy levels gained better scores. Participants differed significantly in their self-efficacy and academic performance in relation to age group, English proficiency level, and educational level. Suggestions for future research are made based on the results of the study.
MANAJEMEN KURIKULUM
Authors: Sukariyadi Teja Insyaf
Published: February 2022

Kurikulum adalah salah satuh komponen yang memegang peranan penting dalam sistem pendidikan. Kurikulum akan memberikan arah dan menjadi pedoman dalam pelaksanaan proses pendidikan dan pengajaran di sebuah institusi, khususnya di lembaga-lembaga pendidikan formal. Tanpa kurikulum proses pendidikan tidak akan berjalan terarah dengan baik. Bahkan secara ekstrim bisa dikatakan, jika tidak ada kurikulum maka sekolah tidak akan ada proses pendidikan dan pengajaran. Hal itu karena yang menentukan aktivitas proses pendidikan berupa kegiatan pembelajaran semuanya ditentukan dalam kurikulum.
The Fourth Industrial Revolution: A New Ideology
Authors: Moll Ian
Published: February 2022

The hegemonic construal of the “Fourth Industrial Revolution” portrays rapid technological developments as a bold, new industrial revolution. Since there is sparse evidence of any such revolution across the totality of social, political, cultural and economic institutions, locally and globally, the focus must turn to how this ideological frame functions to further the interests of social and economic elites worldwide.  This article examines the way that Klaus Schwab, as the principal intellectual of the World Economic Forum and the interests it represents, has formulated and disseminated this ideology. It argues that the “Fourth Industrial Revolution” frame bolsters the contingent neoliberalism of the post-Washington consensus period, and therefore serves to obscure the continuing decline of the globalised world order with a ‘brave new world’ narrative.
Cytotoxic effect of Senecio madagascariensis (Asteraceae) extracts on cancer derived cell lines
Authors: Mondino Alejandra , Yaneselli Kevin , Ingold Ana , Echeverry Carolina , Raffaelli Sofia , Vázquez Álvaro , García y Santos Carmen
Published: February 2022

Species of the genus Senecio have been traditionally employed with medical purposes and it has been demonstrated that some of them have anti-proliferative activity on cancer-derived cell lines. In South America S. madagascariensis is one of the most important representatives of the genus. Almost all species contain pyrrolizidine alkaloids (PA), substances that can lead to hepatic damage. Thus, the aim of this work was to determine the cytotoxic activity of a low PAs extract of S. madagascariensis on a cancer-derived cell line. A chloroform extract from plant material was produced and it was demonstrated to have a PAs concentration lower than 200 μg/g (w/w). Two stock solutions were made with DMSO and acetone as solvents and were diluted in culture medium (DMEM). Cells from urinary bladder transitional cell carcinoma T24 were cultured in 96 well plates (104 cells/well) and incubated for 24 hours with dilutions of the extracts at the following concentrations, 0.5 mg/mL, 0.25 mg/mL, 0.125 mg/mL and 0.06 mg/mL. Cell viability was evaluated by the MTT colorimetric technique. Both solutions of S. madagascariensis extracts (acetone and DMSO) showed cytotoxic activity. In both cases, the degree of cytotoxicity was dependent on the concentration of the solution.
Criteria for the identification of ineffective open data portals: pretender open data portals
Authors: Abella Alberto , Ortiz-de-Urbina-Criado Marta , De-Pablos-Heredero Carmen
Published: February 2022

Open data are considered an essential resource for governments, businesses, and citizens. In that context, open data portals have potential for creating enormous economic growth. Open data portals should allow the reuse of open data, ensure the efficiency of data transmission, and enable professional initiatives based on data reuse. However, there are portals that are inefficient because they do not allow reuse of their data. The objective of this work is to define and identify open data portals that do not offer the possibility for professional reuse of their data. We refer to them as “pretender open data portals”. The following research questions are considered herein: What minimum criteria must an open data portal satisfy to enable professional reuse of open data? How can portals that do not meet these criteria be identified? And, what problems might these portals present, and how they might be solved? The results of an analysis of two samples of open data portals in Spain reveal that 63.8% and 56.1% of the portals analyzed in 2019 and 2021, respectively, can be considered pretender open data portals. The existence of pretender open data portals can have negative economic and social impacts, such as wasting public resources and projecting a negative image of the government’s open data policies. To find coordination mechanisms to develop open data portals that, through the professional re-use of their data can create economic and social value, is one important challenge. The analysis of best practices of open data portals can be also a way to go in deep in the understanding of open data reuse impact not only from a professional standpoint.
Application of gravity and magnetic techniques to model the geometry of the northern margin of the Onion Creek salt diapir, Paradox Basin, Utah
Authors: Astromovich Julia , Baker Mark R. , Doser Diane I. , Houston William
Published: February 2022

The Onion Creek salt diapir lies within the Paradox Basin of southeast Utah where it forms part of a group of salt structures that separate the Paradox Basin into smaller sub-basins. A series of anomalous, tight folds occur on the northern side of the Onion Creek diapir within the Permian Cutler Group. These folds are thought to be associated with a shallow detachment horizon with three possible origins: 1) a weak shale layer within the Cutler Group; 2) a salt namakier; or 3) a salt shoulder. We collected and analyzed gravity and magnetics data across a portion of the concealed Onion Creek salt body. Since the salt is less dense and less magnetic than the Cutler Group siliciclastics, these geophysical data aid in defining the extent of subsurface salt. Our gravity data show a free-air anomaly low over the diapir with a gradual increase in values as more of the Cutler Group covers the subsurface salt. Magnetic data display a similar trend, but also suggest more complicated 3-D structure exists beneath the study area. Forward and inverse modeling indicated a salt shoulder model best fit the geophysical data. These results suggest gravity and magnetic methods are a low-cost method to evaluate plausible subsurface salt structure for oil and gas exploration studies.
ANALISIS KETERAMPILAN PROSES SAINS MAHASISWA PADA PRAKTIKUM DASAR-DASAR KIMIA ANALITIK
Authors: Rahayu Ayu
Published: February 2022

Hasil belajar dalam pembelajaran kimia tidak hanya sebatas pada aspek kognitif tetapi harus melihat aspek afektif dan psikomotorik. Ketiga aspek tersebut dapat terukur dari kegiatan praktikum dan dapat mengetahui kemampuan keterampilan proses sains. Tujuan dari penelitian ini adalah untuk mengetahui dan mendeskripsikan keterampilan proses sains mahasiswa pada praktikum dasar-dasar kimia analitik. Penelitian ini menggunakan metode penelitian deskriptif yang dilakukam pada mahasiswa pendidikan kimia. Data hasil penelitian dianalisis secara kuantitatif dan kualitatif. Hasil menunjukkan bahwa presentase indikator keterampilan proses sains yang tertinggi adalah merencanakan percobaan yaitu 76.33 % kategori baik sedangkan indikator terendah adalah menerapkan konsep yaitu 52.00% kategori cukup. Sehingga, secara keseluruhan keterampilan proses sains mahasiswa berdasarkan hasil observasi adalah 63.43% dengan kategori baik. Dengan demikian, dapat dinyatakan keterampilan proses sains mahasiswa pada praktikum dasar dasar kimia analitik adalah baik.
ANALISIS JENIS DAN KADAR SAPONIN EKSTRAK AKAR KUNING (Fibraurea chloroleuca Miers) SECARA GRAVIMETRI
Authors: Darma Wira , Marpaung Mauritz Pandapotan
Published: February 2022

Akar kuning (Fibraurea chloroleuca Miers) merupakan salah satu tanaman yang mempunyai banyak manfaat dalam pengobatan dengan kandungan metabolit sekunder berupa alkaloid, flavonoid, saponin, tanin, steroid dan terpenoid. Tujuan penelitian ini untuk mengetahui jenis dan kadar saponin ekstrak akar kuning. Proses ekstraksi telah dilakukan melalui metode refluks dengan pelarut metanol. Analisis jenis saponin menggunakan pereaksi LB (Liebermann-Burchard) dan kadarnya ditentukan dengan metode gravimetri. Hasil penelitian menunjukkan jenis saponin ekstrak akar kuning adalah saponin triterpenoid dengan kadar sebesar 4,51±0,2805%.
TINGKAT KONSENTRASI ATLET KOTA LUBUKLINGGAU
Authors: Fatahilah Adika , Firlando Rais
Published: February 2022

Pentingnya memahami konsentrasi atlet dalam berolahraga bertujuan untuk membuat prediksi kemungkinan penampilan atlet menghadapi situasi tertentu dalam pertandingan maupun latihan, dan untuk mencari bibit-bibit atlet berbakat dalam cabang olahraga tertentu untuk meraih prestasi maksimal. Penelitian ini penelitian kualitatif dengan menggunakan metode deskriptif analisi. Sampel atlet kota Lubuklinggau teknik pengambilan sampel menggunakan puposive sampling sehingga mendapatkan 15 sampel dari lima cabang olahraga berbeda. Adapun hasil penelitian 15 orang sampel, 0 orang yang melewati kategori 10> persentase (0%)  yang tergolong kategori tinggi, 1 orang yang melewati kategori 9-10 persentase (7%) tergolong kategori agak tinggi, 8 orang yang melewati kategori 7-8 persentase (53%) tergolong kategori agak rendah, 6 orang yang melewati kategori 5-6 persentase (40%) tergolong kategori rendah. Rata-rata tingkat konsentrasi atlet belum ada yang mencapai kategori tinggi, maka dibutuhkan sebuah model latihan untuk meningkatkan konsentrasi atlet.
Pengaruh Latihan Ladder Drills Dan Zig Zag Run Terhadap Kelincahan Tendangan Sabit Kanan Kiri Pesilat Putra Tapak Suci Caringin Sukabumi
Authors: Muslihin Muslihin , Septiadi Firman , Saputri Harmi
Published: February 2022

Penelitian ini bertujuan untuk mengetahui pengaruh latihan ladder drills, zig zag run terhadap kelincahan tendangan sabit kanan kiri pencak silat. Penelitian ini menggunakan metode kuantitatif (Pretest-Posttest Control Grup Design). Populasi penelitian ini merupakan di ambil dari anggota perguruan pecak silat Tapak Suci Caringin Sukabumi yang berjumlah 25 orang sampel yang diambil 20 orang. Pengambilan sampel penelitian ini dengan teknik purposive sampling, yaitu teknik penentuan sampel dengan pertimbangan tertentu. Instrument dalam penelitian ini yaitu: (1) program latihan (2) tes kelincahan tendangan sabit kanan kiri. Berdasarkan hasil perhitungan menggunakan teknik analisis uji normalitas, uji-F dan uji-T. Di peroleh hasil F hitung lebih kecil dari F tabel, yaitu F hitung (1,13) dan F tabel (3,18) dan T hitung lebih kecil dari T tabel yaitu T hitung (1,57) dan T tabel (3,179). berdasarkan taraf signifikansi 0.05 maka Hα di tolak artinya tidak ada pengaruh metode latihan ladder drill dan zig zag run terhadap kelincahan tendangan sabit kanan kiri pesilat putra Tapak Suci Caringin Sukabumi 2020.
Survei Tingkat Kecemasan (Anxiety) Siswa dalam Menghadapi Pertandingan Sepakbola Di SMP Negeri Se-Kecamatan Lalan Kabupaten Musi Banyuasin
Authors: Riyanto Arif , Riyoko Endie
Published: February 2022

Penelitian ini bertujuan untuk mengetahui tingkat kecemasan (anxiety) siswa dalam menghadapi pertandingan sepakbola di SMP Negeri se-kecamatan Lalan kabupaten Musi Banyuasin. Metode dalam penelitian ini adalah deskriptif kuantitatif dengan pendekatan survey. Populasi dalam penelitian ini adalah seluruh siswa peserta ekstrakurikuler sepakbola di SMP Negeri se-kecamatan Lalan tahun 2019/2020 yang berjumlah 50 siswa, sedangkan sampel di ambil sama dengan jumlah populasi. Data diperoleh dengan instrument angket. Data hasil tes dianalisis menggunakan persentase. Hasil penelitian diperoleh rata-rata state anxiety dalam menghadapi pertandingan sepakbola sebesar 50,0% dikategorikan sangat rendah, rata-rata trait anxiety siswa dalam menghadapi pertandingan sepakbola sebesar 53,6% dikategorikan sangat rendah, sedangkan perbandingan rata-rata tingkat kecemasan siswa dalam menghadapi pertandingan sepakbola tertinggi pada SMP Negeri 1 Lalan sebesar 54,75% termasuk rendah, selanjutnya pada SMP Negeri 2 Lalan sebesar  50,59% dikategorikan rendah, dan terakhir pada SMP Negeri 3 Lalan sebesar 49,06% dikategorikan sangat rendah.
Profil Kebugaran Jasmani Atlet Pencak Silat Pplp Kalimantan Selatan
Authors: Fauzan Lazuardy Akbar , Dirgantoro Edwin Wahyu
Published: February 2022

Kebugaran jasmani merupakan salah satu unsur penting dalam peningkatan prestasi atlet. Atlet yang memiliki kebugaran jasmani yang baik tidak akan mengalami kelelahan yang berarti, baik dalam setiap latihan maupun dalam pertandingan. PPLP merupakan  program dari Kemenpora (Kementerian Pemuda dan Olahraga) untuk membentuk talenta berbakat yang berprestasi di usia muda. Bekerjasama dengan Dinas Pemuda dan Olahraga di setiap provinsi dalam pembinaannya. Tujuan dari penelitian ini adalah untuk mengetahui tingkat kesegaran jasmani atlet pencak silat PPLP Kalimantan Selatan. Penelitian ini merupakan penelitian deskriptif kuantitatif dengan menggunakan metode survey dengan teknik tes dan pengukuran. Teknik pengambilan sampel pada penelitian ini menggunakan teknik total sampling. Sampel dalam penelitian ini adalah seluruh atlet pencak silat PPLP Kalimantan Selatan yang berjumlah 7 orang. Intrumen tes yang digunakan dalam penelitian ini adalah instrumen tes atlet dari kemenpora edisi tahun 2014. Teknik analisis yang dilakukan adalah mengunakan frekuensi ke dalam bentuk persentase.Hasil penelitian ini menunjukkan bahwa tingkat kesegaran jasmani atlet pencak silat PPLP Kalimantan Selatan adalah 1) Kriteria index masa tubuh atlet pencak silat PPLP Kalsel sebanyak 86% masuk kategori ideal, 2) tingkat kecepatan (speed) atlet pencak silat PPLP Kalsel sebanyak 29% masuk kategori sangat baik, 3) tingkat kelincahan atlet pencak silat PPLP Kalsel sebanyak 86% masuk kategori sangat baik, 4) kemampuan daya ledak otot (muscle explosive) atlet pencak silat PPLP Kalsel sebanyak 57% masuk kategori sangat baik, 5) kekuatan otot lengan (power) atlet pencak silat PPLP Kalsel sebanyak 29% masuk kategori sangat baik, 6) kekuatan otot perut atlet pencak silat PPLP Kalsel sebanyak 86% masuk kategori sangat baik, dan 7) kemampuan daya tahan (endurance) atlet pencak silat PPLP Kalsel sebanyak 49% termasuk kategori sangat baik.
Hubungan Kekuatan Otot Lengan dan Kooordinasi Mata-Tangan dengan Keterampilan Servis Atas Bolavoli Siswa SMP 74 Jakarta Timur
Authors: Aspar Muhammad , Mahardika Galang Pakarti , Gery Muhammad Ishaq
Published: February 2022

Penelitian ini bertujuan untuk mengetahui; (1) hubungan antara kekuatan otot lengan dengan keterampilan servis atas bolavoli, (2) hubungan antara koordinasi mata-tangan dengan keterampilan servis atas bolavoli, dan (3) hubungan antara kekuatan otot lengan dan koordinasi mata-tangan secara bersama-sama dengan keterampilan servis atas bolavoli. Penelitian ini dilakukan di SMP Negeri 74 Jakarta Timur pada ekstrakulikuler olahraga Bolavoli. Metode penelitian yang digunakan adalah kuantitatif deskriptif dengan teknik korelasional. Populasi dalam penelitian ini adalah siswa yang mengikuti ekstrakulikuler Bolavoli di SMP Negeri 74 Jakarta Timur DKI Jakarta sebanyak 45 orang. Analisis data menggunakan statistik korelasional dan regresi dengan taraf signifikan α= 0,05. Kesimpulan penelitian ini adalah terdapat hubungan yang positif dan signifikan antara kekuatan otot lengan dan koordinasi mata-tangan dengan keterampilan servis atas bolavoli SMP Negeri 74 Jakarta Timur. Kata Kunci: Bolavoli, Servis Atas
Times of History, Times of Nature: Temporalization and the Limits of Modern Knowledge
Authors: Bergwik Staffan
Published: February 2022

As climate change becomes an increasingly important part of public discourse, the relationship between time in nature and history is changing. Nature can no longer be considered a slow and immobile background to human history, and the future can no longer be viewed as open and detached from the past. Times of History, Times of Nature engages with this historical shift in temporal sensibilities through a combination of detailed case studies and synthesizing efforts. Focusing on the history of knowledge, media theory, and environmental humanities, this volume explores the rich and nuanced notions of time and temporality that have emerged in response to climate change.
Video Wisdom: Using TED Talks for Developing Speaking Proficiency of Pakistani Undergraduate learners
Authors: Nawaz Shahid , Saleem Muhammad , Zaib Farah
Published: February 2022

This research focuses on the perceptions of students about TED talk videos and their effects on speaking skills. This study follows an experimental research design. The researchers, by using the purposive sampling technique, took a sample of 50 undergraduate students studying in SE college, Bahawalpur. A questionnaire was proposed to know the learner's perception about videos and a speaking test was also conducted as an instrument for data collection. The data was analyzed using SPSS. The findings of the study showed that the average mean value for the questionnaire was 4.36,with an SD value of 0.89. The researchers estimated that in the control group p-value is larger than0.05 both in pretest and post-test. Similarly, the experimental group p-value is also larger than 0.05 in pretest but smaller than 0.05 in post-test. They finally concluded that TED Talk videos were very helpful for undergraduate learners.
Thermal stability of two xylanases from Macrotermes subhyalinus little soldier: kinetic and thermodynamic analysis
Authors: Fagbohoun Jean Bedel
Published: February 2022

The knowledge on thermal inactivation kinetics of enzymes is necessary to allow their adequate utilization as natural biopreservatives in the food industry and technology applications. In this work, the kinetics of thermal inactivation was studied for the previously purified and characterized xylanases Xyl1 and Xyl2 from Macrotermes subhyalinus little soldier. Samples of xylanases were treated at different time-temperature combinations in the range of 5-60 min at 50-65°C and the kinetic and thermodynamic parameters for xylanases were calculated. The inactivation kinetic follows a first-order reaction with k-values between 0.0192 ± 0.0002 to 0.0405 ± 0.0003 and 0.0119 ± 0.0005 to 0.0418 ± 0.0004 min-1 for Xyl1 and Xyl2, respectively. Activation energy (Ea) and Z-values were estimated to 48.08 ± 1.84 kJ mol-1 and 43.47 ± 3.02°C for Xyl1, 75.52 ± 3.52 kJ.mol-1 and 27.77 ± 1.87°C for Xyl2. The catalytic reactions of both xylanases are endothermic due to positive enthalpy. The high value obtained for the variation in enthalpy of activation indicates that a high amount of energy is required to initiate denaturation, probably due to the molecular conformation of xylanases. All results suggest that both xylanases are relatively resistant to long heat treatments up to 50°C.