bluuebunny/crossref_metadata_2025 huggingface dataset:
A Semantically Rich Framework for Knowledge Representation of Code of Federal Regulations
Authors: Joshi Karuna Pande , Saha Srishty
Published: November 2020

Federal government agencies and organizations doing business with them have to adhere to the Code of Federal Regulations (CFR). The CFRs are currently available as large text documents that are not machine processable and so require extensive manual effort to parse and comprehend, especially when sections cross-reference topics spread across various titles. We have developed a novel framework to automatically extract knowledge from CFRs and represent it using a semantically rich knowledge graph. The framework captures knowledge in the form of key terms, rules, topic summaries, relationships between various terms, semantically similar terminologies, deontic expressions, and cross-referenced facts and rules. We built our framework using deep learning technologies like TensorFlow for word embeddings and text summarization, Gensim for topic modeling, and Semantic Web technologies for building the knowledge graph. In this article, we describe our framework in detail and present the results of our analysis of the Title 48 CFR knowledge base that we have built using this framework. Our framework and knowledge graph can be adopted by federal agencies and businesses to automate their internal processes that reference the CFR rules and policies.
A Deep Learning Approach for COVID-19 8 Viral Pneumonia Screening with X-ray Images
Authors: Ahmed Faizan , Bukhari Syed Ahmad Chan , Keshtkar Fazel
Published: November 2020

Beginning in December 2019, the spread of the novel Coronavirus (COVID-19) has exposed weaknesses in healthcare systems across the world. To sufficiently contain the virus, countries have had to carry out a set of extraordinary measures, including exhaustive testing and screening for positive cases of the disease. It is crucial to detect and isolate those who are infected as soon as possible to keep the virus contained. However, in countries and areas where there are limited COVID-19 testing kits, there is an urgent need for alternative diagnostic measures. The standard screening method currently used for detecting COVID-19 cases is RT-PCR testing, which is a very time-consuming, laborious, and complicated manual process. Given that nearly all hospitals have X-ray imaging machines, it is possible to use X-rays to screen for COVID-19 without the dedicated test kits and separate those who are infected and those who are not. In this study, we applied deep convolutional neural networks on chest X-rays to determine this phenomena. The proposed deep learning model produced an average classification accuracy of 90.64% and F1-Score of 89.8% after performing 5-fold cross-validation on a multi-class dataset consisting of COVID-19, Viral Pneumonia, and normal X-ray images.
Successful Models of Hackathons and Innovation Contests to Crowdsource Rapid Responses to COVID-19
Authors: Gama Kiev
Published: November 2020

To help fighting the many adversarial effects that the COVID-19 pandemic brought, many initiatives supported by public, private and non-governmental organizations are crowdsourcing the development of solutions through hackathons and innovation contests. This article discusses the models and common aspects of two successful initiatives led by governmental institutions that used a crowdsourcing approach to foster solutions aiming at pandemic-related issues: the EUVsVirus (Europe) and the MPLabs COVID-19 Challenge (Brazil).
Leakage Current Modelling and Optimization of β-Ga
2
O
3 Schottky Barrier Diode with Ni Contact under High Reverse Voltage
Authors: Labed Madani , Sengouga Nouredine , Meftah Afak , Labed Mohamed , Kyoung Sinsu , Kim Hojoong , Rim You Seung
Published: November 2020

The reverse leakage current under high reverse voltage of a Ni/β-Ga
2
O
3 Schottky barrier diode (SBD) is numerically modelled and compared to measurements. universal Schottky tunnelling, thermionic emission and image-force lowering were taken into account. Furthermore, when type conversion under high reverse voltage has occurred at the top interface between Ni and β-Ga
2
O
3 and the SBD behaved as P–i–N diode, band to band tunnelling is proposed in association with the usually used Selberherr’s Impact ionization to model avalanche breakdown. The obtained breakdown voltage and specific on-resistance value are 434 V and 2.13 mΩ·cm2, respectively, fairly close to measurement values of 440 V and 2.79 mΩ·cm2. Optimization is performed based on the insertion of an intrinsic layer between Ni and the β-Ga
2
O
3 drift layer. It was found that 0.4 μm gave better Baliga’s figure of merit of 9.48107 W·cm−2 with breakdown voltage and specific on-resistance of 465 V and 2.28 mΩ·cm2, respectively. Finally, a surface edge termination design based on TiO2 insulator plate is adopted and the best obtained breakdown voltage, Baliga’s figure of merit and specific on-resistance were 1466 V, 1.98 × 109 W·cm−2 and 1.98 mΩ·cm2 respectively.
Progress in Stem Cell Therapy for Spinal Cord Injury
Authors: Gao Liansheng , Peng Yucong , Xu Weilin , He Pingyou , Li Tao , Lu Xiaoyang , Chen Gao
Published: November 2020

Background. Spinal cord injury (SCI) is one of the serious neurological diseases that occur in young people with high morbidity and disability. However, there is still a lack of effective treatments for it. Stem cell (SC) treatment of SCI has gradually become a new research hotspot over the past decades. This article is aimed at reviewing the research progress of SC therapy for SCI. Methods. Review the literature and summarize the effects, strategies, related mechanisms, safety, and clinical application of different SC types and new approaches in combination with SC in SCI treatment. Results. A large number of studies have focused on SC therapy for SCI, most of which showed good effects. The common SC types for SCI treatment include mesenchymal stem cells (MSCs), hematopoietic stem cells (HSCs), neural stem cells (NSCs), induced pluripotent stem cells (iPSCs), and embryonic stem cells (ESCs). The modes of treatment include in vivo and in vitro induction. The pathways of transplantation consist of intravenous, transarterial, nasal, intraperitoneal, intrathecal, and intramedullary injections. Most of the SC treatments for SCI use a number of cells ranging from tens of thousands to millions. Early or late SC administration, application of immunosuppressant or not are still controversies. Potential mechanisms of SC therapy include tissue repair and replacement, neurotrophy, and regeneration and promotion of angiogenesis, antiapoptosis, and anti-inflammatory. Common safety issues include thrombosis and embolism, tumorigenicity and instability, infection, high fever, and even death. Recently, some new approaches, such as the pharmacological activation of endogenous SCs, biomaterials, 3D print, and optogenetics, have been also developed, which greatly improved the application of SC therapy for SCI. Conclusion. Most studies support the effects of SC therapy on SCI, while a few studies do not. The cell types, mechanisms, and strategies of SC therapy for SCI are very different among studies. In addition, the safety cannot be ignored, and more clinical trials are required. The application of new technology will promote SC therapy of SCI.
Blocking Interleukin-33 Alleviates the Joint Inflammation and Inhibits the Development of Collagen-Induced Arthritis in Mice
Authors: Li Yan , Fu Yeqin , Chen Huan , Liu Xiaojin , Li Mingcai
Published: November 2020

Rheumatoid arthritis (RA) is considered a systemic chronic inflammatory joint disease characterized by chronic synovitis and cartilage and bone destruction. Interleukin-33 (IL-33) is a proinflammatory cytokine which is highly expressed in the synovium of RA patients and the joints of mice with collagen-induced arthritis (CIA) and exacerbates CIA in mice. However, the role of the IL-33-neutralizing antibody in the murine model of CIA remains unclear. In the present study, CIA mice were given intraperitoneally with polyclonal rabbit anti-murine IL-33 antibody (anti-IL-33) or normal rabbit IgG control after the first signs of arthritis. Administration of anti-IL-33 after the onset of disease significantly reduced the severity of CIA and joint damage compared with controls treated with normal rabbit IgG. Anti-IL-33 treatment also significantly decreased the serum levels of interferon-γ(IFN-γ),IL-6, IL-12, IL-33, and tumor necrosis factor-α (TNF-α). Moreover, anti-IL-33 treatment significantly downregulated the production of IFN-γ, IL-6, IL-12, IL-33, and TNF-α in ex vivo-stimulated spleen cells. Together, our results indicate that the IL-33-neutralizing antibody may provide a therapeutic strategy for RA by inhibiting the release of proinflammatory cytokines.
Toll‐like‐Receptor Gene Polymorphisms in Tunisian Endemic Pemphigus Foliaceus
Authors: Abida O. , Bahloul E. , Elloumi N. , Toumi A. , Tahri Safa , Ben Jmaa M. , Fakhfakh R. , Mahfoudh N. , Turki H. , Masmoudi H.
Published: November 2020

Pemphigus foliaceus (PF) is considered to be caused by the combined effects of susceptibility genes and environmental triggers. The polymorphisms of Toll‐like receptors (TLRs) genes have been associated with the risk of various autoimmune diseases. The aim of this study was to evaluate the potential association of TLR2‐3‐4 and 7 gene polymorphisms with Tunisian PF. Fourteen polymorphisms were analyzed in 93 Tunisian PF patients compared to 193 matched healthy controls: rs5743703‐rs5743709 and (GT)n repeat (TLR2); rs5743305, rs3775294, and rs3775291 (TLR3), rs4986790 and rs4986791 (TLR4); and rs3853839 (TLR7). Our results showed that the genetic factors varied depending on the epidemiological feature stratification. In fact, in the whole population, no association with the susceptibility to PF was found. The TLR2 GT repeat seems to be closely associated with PF risk in patients originated from the endemic localities (group 3); the GT18 allele and the heterozygous genotype GT18/GT19 seem to confer risk to endemic PF (P = 0.02; OR = 2.3 [1.1‐4.9] and P = 0.0002, OR = 20 [2.5‐171], respectively). In contrast, the GT23 repeat could be considered as protector allele (P = 0.02, OR = 0.2 [0.06‐0.87]). Furthermore, medium GT alleles which induce high promoter activity were also significantly more frequent in patients versus short or long GT repeats (P = 0.0018 with OR = 3.26 [1.5‐7]). On the other hand, the TLR3‐rs574305 AA genotype and A allele were significantly more frequent in patients whose age of the onset was above 35 years (group 2) (P = 0.038, OR = 1.78 and P = 0.009, OR = 3.92, respectively). Besides, the TLR4>rs3775294 A allele was found to be protector only in patients with sporadic features (groups 2 and 4) (P = 0.03, OR = 0.57 [0.3‐0.9] and P = 0.006, OR = 0.24 [0.08‐0.74], respectively). No statistically significant difference was observed in the genotypic and allelic frequencies of TLR-4 and TLR-7 gene polymorphisms. The present data suggest that TLR2and TLR3 polymorphisms are significantly associated with increased susceptibility to PF in the Tunisian population.
Discussion on Geraghty Type Hybrid Contractions
Authors: Alzaid Sara Salem , Fulga Andreea , Alshammari Fehaid Salem
Published: November 2020

In this manuscript, we define the notion of Geraghty type hybrid contractions in the setting of

b

-metric spaces. We prove the existence of a fixed point for such mappings whenever

b

-metric space is complete. Our observed results not only unify several existing results but also extend some known results.
Autophagy Regulatory Genes MET and RIPK2 Play a Prognostic Role in Pancreatic Ductal Adenocarcinoma: A Bioinformatic Analysis Based on GEO and TCGA
Authors: Li Xingyu , Li Zhiqiang , Zhu Hongwei , Yu Xiao
Published: November 2020

Pancreatic ductal adenocarcinoma is a common malignant tumor with a poor prognosis. Autophagy activity changes in both cancer cells and microenvironment and affects the progression of pancreatic ductal adenocarcinoma. The purpose of this study was to predict the prognostic autophagy regulatory genes and their role in the regulation of autophagy in pancreatic ductal adenocarcinoma. We draw conclusions based on gene expression data from different platforms: GSE62165 and GSE85916 from the array platform, TCGA from the bulk RNA‐seq platform, and GSE111672 from the single‐cell RNA‐seq platform. At first, we detected differentially expressed genes in pancreatic ductal adenocarcinoma compared with normal pancreatic tissue based on GSE62165. Then, we screened prognostic genes based on GSE85916 and TCGA. Furthermore, we constructed a risk signature composed of the prognostic differentially expressed genes. Finally, we predicted the probable role of these genes in regulating autophagy and the types of cell expressing these genes. According to our screening criteria, there were only two genes: MET and RIPK2, selected into the development of the risk signature. However, evaluated by log‐rank tests, receiver operating characteristic curves, and calibration curves, the risk signature was worth considering its clinical application because of good sensitivity, specificity, and stability. Besides, we predicted that both MET and RIPK2 promote autophagy in pancreatic ductal adenocarcinoma by gene set enrichment analysis. Analysis of single‐cell RNA‐seq data from GSE111672 revealed that both MET and RIPK2 were expressed in cancer cells while RIPK2 was also expressed in monocytes and neutrophils. After comprehensive analysis, we found that both MET and RIPK2 are related to the prognosis of pancreatic ductal adenocarcinoma and provided some associated clues for clinical application and basic experiment research.
SGLT-2 Inhibitors—a Culprit of Diabetic Ketoacidosis Postbariatric Surgery
Authors: Iqbal Qasim Zafar , Mishiyev Danil , Niazi Muhammad Raphay , Zia Zeeshan , Sattar Saud Bin Abdul , Jahanghir Abdullah , Quyyumi Shahed
Published: November 2020

Sodium-glucose cotransporter-2 SGLT2 inhibitors are antihyperglycemic drugs that are currently being recommended as second-line therapy for patients with diabetes mellitus. They have grown increasingly popular over recent years, as they have been shown to have some protective effects on the heart and kidneys, both organ systems that diabetes mellitus has shown to have deleterious effect on over time. Despite their growing popularity, they have been found to increase the risk of euglycemic diabetic ketoacidosis (DKA). There is an increasing body of literature detailing cases of euglycemic DKA after bariatric surgery. We present a case series of three cases of euglycemic DKA postbariatric surgery in patients with an underlying history of type 2 diabetes mellitus, who were being treated with SGLT2 inhibitors prior to the surgery. All three patients reported to the emergency room with signs, symptoms, and clinical findings of euglycemic DKA. The AACE recommends SGLT2 inhibitors to be discontinued at least 24 hours prior to surgery and resumed when a patient resumes a normal diet. Our patients presented with euglycemic DKA after bariatric surgery, and we recommend more research should be done targeted at the prolonged postoperative course of patients on SGLT-2 inhibitors and into creating specific guidelines for their use after bariatric surgery.
The Impact of Nickel Mining on Soil Properties and Growth of Two Fast-Growing Tropical Trees Species
Authors: Prematuri Ricksy , Turjaman Maman , Sato Takumi , Tawaraya Keitaro
Published: November 2020

Opencast nickel mining is common in natural forests of Indonesia. However, rehabilitation of postmining degraded land is difficult. We investigated the effect of opencast nickel mining on soil chemical properties and the growth of two fast-growing tropical tree species, Falcataria moluccana and Albizia saman. Soil was collected from post-nickel mining land and a nearby natural forest. Soil pH, available phosphorus (P) concentration, total carbon (TC) and total nitrogen (TN) concentration, C/N ratio, cation exchange capacity (CEC), and exchangeable K, Na, Mg, Ca, Fe, and Ni concentrations were determined. Falcataria moluccana and A. saman were then grown in the collected soils for 15 weeks in a greenhouse. Shoot height and shoot and root dry weights of the seedlings were measured. The post--nickel mining soils TN, TC, available P, CEC, and exchangeable Ca and Na concentrations decreased by 98%, 93%, 11%, 62%, 85%, and 74%, respectively, in comparison with the natural forest soils. The pH of postmining soil was higher than natural forest soil. Shoot dry weight of F. moluccana seedlings grown in postmining soil was significantly (P<0.05) lower than that of seedlings grown in natural forest soil. However, there was no difference in shoot dry weight between A. saman seedlings grown in natural forest soil and postmining soil, as well as root dry weights of both species. The results indicate that opencast nickel mining decreased soil fertility, which subsequently inhibited the growth of F. moluccana and A. saman seedlings.
WiFi-Based Virtual Access Network Scheduling for Downlink Traffic Dominated Smart Spaces
Authors: Lv Pin , Pan Siyu , Xu Jia
Published: November 2020

WiFi networks are widely and densely deployed as infrastructure in smart spaces. However, differentiated services with guaranteed access bandwidths are not supported in traditional WiFi networks. In this paper, wireless virtual access networks are established to provide guaranteed downlink bandwidths for primary users. For each primary user with a demanded access bandwidth, a group of APs are coordinated to serve it. In order to maximize network utilization, two wireless virtual access network scheduling algorithms are designed. One scheduling algorithm is designed based on the maximum independent set in the conflict graph, which has an exponential computation complexity. The other scheduling solution is based on a greedy strategy with linear complexity. Simulation results prove that both scheduling algorithms improve network utilization effectively, and the greedy algorithm is more suitable for practical use.
Best Proximity Point Theorems for Cyclic Contractions Mappings in Banach Algebras
Authors: Chaira K. , Chaira S. , Lazaiz S.
Published: November 2020

In this paper, we present some new best proximity point theorems for three operators acting in Banach algebras. An application is given to show the usefulness and the applicability of the obtained results.
Genetically Defined, Syngeneic Organoid Platform for Developing Combination Therapies for Ovarian Cancer
Authors: Zhang Shuang , Iyer Sonia , Ran Hao , Dolgalev Igor , Gu Shengqing , Wei Wei , Foster Connor J.R. , Loomis Cynthia A. , Olvera Narciso , Dao Fanny , Levine Douglas A. , Weinberg Robert A. , Neel Benjamin G.
Published: November 2020

The paucity of genetically informed, immunocompetent tumor models impedes evaluation of conventional, targeted, and immune therapies. By engineering mouse fallopian tube epithelial organoids using lentiviral gene transduction and/or CRISPR/Cas9 mutagenesis, we generated multiple high-grade serous tubo-ovarian cancer (HGSC) models exhibiting mutational combinations seen in patients with HGSC. Detailed analysis of homologous recombination (HR)–proficient (Trp53−/−;Ccne1OE;Akt2OE;KrasOE), HR-deficient (Trp53−/−;Brca1−/−;MycOE), and unclassified (Trp53−/−;Pten−/−;Nf1−/−) organoids revealed differences in in vitro properties (proliferation, differentiation, and “secretome”), copy-number aberrations, and tumorigenicity. Tumorigenic organoids had variable sensitivity to HGSC chemotherapeutics, and evoked distinct immune microenvironments that could be modulated by neutralizing organoid-produced chemokines/cytokines. These findings enabled development of a chemotherapy/immunotherapy regimen that yielded durable, T cell–dependent responses in Trp53−/−;Ccne1OE;Akt2OE;Kras HGSC; in contrast, Trp53−/−;Pten−/−;Nf1−/− tumors failed to respond. Mouse and human HGSC models showed genotype-dependent similarities in chemosensitivity, secretome, and immune microenvironment. Genotype-informed, syngeneic organoid models could provide a platform for the rapid evaluation of tumor biology and therapeutics.

Significance:

The lack of genetically informed, diverse, immunocompetent models poses a major barrier to therapeutic development for many malignancies. Using engineered fallopian tube organoids to study the cell-autonomous and cell-nonautonomous effects of specific combinations of mutations found in HGSC, we suggest an effective combination treatment for the currently intractable CCNE1-amplified subgroup.

This article is highlighted in the In This Issue feature, p. 211
The integration of imagery training to increase gymnastic skill learning outcomes
Authors: Visalim Aqim , Winarni Sri , Hastuti Tri Ani
Published: November 2020

Imagery training had been proven to improve skills in some athletes in sports training. Yet in education, it left a big question. The purpose of this research was to prove whether the learning process integrated by imagery training could improve learning outcomes in cartwheel skill. The research method used Classroom Action Research method with two cycles. Each cycle consisted of four stages, namely: preparation, implementation, observation, and reflection. The action was conducted by the integration of imagery training in learning cartwheel motion. Data collection techniques used observation and performance test. The increase of learning outcomes in skill aspects of 34 students reached 58.82% in the first cycle, and increased to be 76.67% in the second cycle. The result of the study showed that through learning process integrated by imagery training could improve learning outcomes in gymnastic material about cartwheel skill.
Development of problem solving ability test on the work-energy material
Authors: Batlolona John Rafafy , Wartono Wartono , Sutopo Sutopo , Rahmatina Desella Inna
Published: November 2020

The purpose of this research is to develop test questions of problem solving ability on work-energy material for high school students class X. This type of research is research and development. The model used in this study is ADDIE with the stages of analyzing, planning, developing, implementing, and evaluating, but this study only up to the implementation stage. The test developed in this research consists of three items of problem solving ability description that is multi context. Validation of item was done by content validation and empirical validation. The results of content validation indicate that the average score of test items is 3,125 with good category. The results of empirical validation indicate that there are two valid questions and one invalid question. Two valid questions have a Cronbach Alpha coefficient of 0.807. The results of the implementation of the test showed that the average student problem solving abilities in Question 1 is 17.41 of a maximum score of 25, the lowest score is 10 and the highest is 23. The results of students in the question number 2 by 16.60 of a maximum score of 25, with the lowest score is 10 and the highest is 22. These results indicate that the test instrument is feasible to use to assess students' problem solving abilities.
Teachers’ perception on quality assurance in teacher education programmes in Nigerian Universitiies
Authors: Okunloye William Rotimi , Olokooba Issa Nasiru , Uyanne Elizabeth Obiageli , Okafor Ifeoma P
Published: November 2020

The expectation of the labour market on the quality of graduates produced by Faculties of Education in Nigeria universities has become burning issues that many stakeholders in the education sectorfelt unsatisfactory. It becomes imperative to assessthe challenges of quality assurance in teacher education.This study therefore assessedquality assurance in teacher education in Nigerian universities:  challenges and way forward. A descriptive survey research design was adopted for the study. The population of the study was all university teachers in Faculties of Education in universities in Kwara State, Nigeria. A purposive sampling technique was used to select 240 university teachers. A researcher-design questionnaire was used for data collection for the study. The data collected were analysed using means ranking and standard deviation. The findings of the study showed thatthe provision of teachers with adequate academic and professional formativeexperience for teaching and control of examination system with clear procedures as well as ethics of confidentiality and impartiality are the most needed qualities to be assured in teacher education. Overcrowding that leads to poor classroom management and control; instability of academic calendar and adoption of outdated curriculum and inadequate exposure to practical teaching that ensure professionalism are the major challenges in the teacher education. As way out to the challenges, broadening the curriculum of research methodology to improve the student’s project writing skills and emphasis on the acquisition of knowledge in the teaching subject pedagogy, entrepreneurial studies, and computer literacy for functional education need to be considered. Based on the findings, it was recommended among others that internal quality assessment in teacher education should be strengthened in the Faculties of Education that would allow for improved pre-service teacher quality products in Teacher Education in Nigerian universities.
Students’ perceptions of electronic’s module in physics practicum
Authors: Darmaji Darmaji , Kurniawan Dwi Agus , Astalini Astalini , Kurniawan Wawan , Anwar Khairul , Lumbantoruan Artha
Published: November 2020

This study aims to determine the views of students majoring in mathematics education and natural science faculty of teacher training and education science at Universitas Jambi to use electronic’s module in physics practicum which is based on science process skills. The study involved 117 students majoring in mathematics education and science which consists of 59 students of physical education and 58 students of mathematics education. This research is descriptive quantitative research in order to obtain information mean (M), median (Me), mode (Mo), percentage, the range of the maximum value and the minimum value. Data was collected by using questionnaires and interviews. Based on the research results from students’ perceptions of physical education in good category at 64.4% while the student's perception of mathematics education in good category amounting to 55.2%.
The influence of beliefs upon pre-service teachers’ professional identity
Authors: Harendita Monica Ella , Pasaribu Truly Almendo
Published: November 2020

Bearing in mind the interplay between beliefs and professional identities, constantly re-examining teachers’ beliefs is deemed to be significant in teachers’ identity formation. However, not much attention has been given to pre-service teachers’ beliefs. Through a case study, this research sought to reveal some beliefs held by four pre-service teachers doing their teaching practicum at a state junior high school in Yogyakarta. In addition, this study also attempts to describe the interplay between beliefs and the professional identity of those pre-service teachers’. Participants’ reflections, observations, and a focus group discussion were employed in order to figure out the answers to the research questions. The findings show that each of the participants processed the experiences they had in their teaching practicum differently. They started their teaching with pre-existing beliefs that were either confirmed or confronted when they did their practicum. The findings of this study also suggest that the interplay between beliefs and professional identity is complex. Not all beliefs were clearly reflected in the participants’ teaching performances. Some may seem contradictive to their beliefs. It implies that although the participants had sets of beliefs in their minds, teaching itself does not only represent their beliefs, but also serves as a stage where many intertwined factors occur.
Understanding of mathematical concepts through cooperative learning, and learning styles
Authors: Virgana Virgana
Published: November 2020

The results of the mathematics learning of junior high school students have not been satisfactory. This is due to the low understanding of students' mathematical concepts. The purpose of this research is to identify the influence of cooperative learning model and learning style towards the understanding of the mathematical concepts of Junior High School students. The method is factorial experiments with 2 x 3 and sample of the study is 60 students of 8th grade junior high school. The analysis  results of variance (ANOVA) indicate the following: the use of cooperative learning model of type Student Team Achievement Division influenced the understanding of the mathematical concepts significantly, there is an  significant influence of the learning style towards an understanding of mathematical concepts, and there is also a significant influence of the interaction of cooperative learning model of type Student Team Achievement Division  and learning style towards the understanding of mathematical concepts. So it can be concluded that the cooperative learning model can improve understanding of students' mathematical concepts and learning styles is a individual differences of learning students in absorbing mathematics subject matter. We hope that this study can be beneficial for further research to improve student’s achievements in mathematics.
Comparative analysis of students’ achievement in senior school certificate further mathematics examinations in kwara state, Nigeria (2007-2016): Implication for stakeholders in education
Authors: Omoladun Olarewaju Adijat , Tosho Abdulrauf , Suleiman Yusuf , Olanrewaju Muraina Kamilu
Published: November 2020

This study explored the trends in students’ achievement in Senior School Certificate Examination (SSCE) in Further Mathematics in Kwara State, Nigeria. The study adopted descriptive research design of ex-post factor type. The sample comprised all Further Mathematics students in 79 public senior secondary schools with 3 Local Government Areas in Kwara State. Two research questions were raised and answered in the study. Frequency count, Percentage and Autoregressive (AR) processes for modelling of time series analyses were used to analyse the data. The results revealed that the trend of students’ achievement in WASSCE Further Mathematics from 2007 to 2016 was stochastic with random walk steadily progressive and percentage of the students obtained credit ranged from 23.0 to 77.3; pass ranged from 18.2 to 72.2 and fail ranged from 0.0 to 25.8. It was recommended among others that stakeholders in education should improve the quest for scientific literacy particularly for science-based subjects and further Mathematics curriculum should be all inclusive and non-discriminating to allow development of problem solving ability.
The importance of interprofessionalism in training and professional exercise
Authors: Quaresma Adilene Gonçalves
Published: November 2020

Interdisciplinarity proposes the integration of disciplines and knowledge and interprofessionality proposes the integration of professionals.The text comprises bibliographical analysis of 47 (forty-seven) articles, of which 25 (twenty-five) discuss interdisciplinarity in the work environment and 22 (twenty-two) deal with interprofessionality for professional practice. The articles were published in the years 1994 to 2018, with a survey through the term "interprofessionality" in the scielo.br database and in the Scientific Open Access Repositories of Portugal (RCAAP). The analysis allows to conclude that interprofessionality, as a strategy of professionals integration, makes it possible the improvement of the quality of the service provided to the population.
Teaching English in Elqubba primary schools: Issues and directions
Authors: Hamed Muftah , Fadhil Tahar
Published: November 2020

The Libyan Ministry of Education has taken important steps to introduce English from the 1st grade (age 6) since autumn semester 2018/2019, yet without taking into considerations the issues that will be faced in teaching English in primary schools. This study, therefore, aimed to identify the issues encountered in the teaching of English from the 1st grade to the 4th grade in primary schools in Elqubba, a city in Eastern Libya and how to overcome these issues. Data were collected through focussed observations and semi-structured interviews. The findings revealed that crowded classrooms, lack of teaching tools and equipments, insufficient exposure to the target language, extensive use of Arabic language, some deficiencies in "English for Libya" coursebooks, poor knowledge of teaching methods, and non-English major teachers were the challenges faced in teaching English. Directions are proposed to overcome these issues.
The effect of problem based learning model on critical thinking skills in the context of chemical reaction rate
Authors: Dakabesi Daud - , Luoise Isana Supiah Yosephine
Published: November 2020

The previous research result showed that the learning model based on the investigation could increase the students’ critical thinking skills. The aim of this research was to measure the effectiveness of the using of problem-based learning model to increase the students’ critical thinking skills. The research design was quasi-experiment by using post-test only design. The population of this research was the eleventh grade students of science which contained 124 students of SMAN 6 and SMAN 7 Kupang that were chosen randomly. The treatment that was given in this research was problem-based learning model for the experiment class and conventional model for the control class whereas the given materials were the reaction rate. The learning process in the experimental class begins with the provision of contextual problems aimed at increasing students' interest and motivation in finding and designing solutions to solve problems individually or in groups. The instrument that was used in this research previously validated by two experts of theory and material. The result of this research showed that the students who studied in experiment class had different critical thinking skills better that the students who studied using conventional model.
Evaluation of universal design for constructivist-based statistics learning module for students’ increased motivation
Authors: Rufii Rufii , Rochmawati Dyah
Published: November 2020

This exploratory study was aimed at evaluating a module on the basis of the constructivist learning strategies to enhance the students’ motivation in Statistics learning. The design and development followed the Universal Design of Learning principles. The design included flexible instructional materials, techniques, and strategies for differentiating instruction which benefited the students of English Education Department taking the Statistics course. The study used a survey covering of 33 students. The students’ and teacher’ responses to questionnaires revealed that the students’ motivation and satisfaction increased toward the Statistics course in which Universal Design of Learning using various means of representation, action, and engagement was applied. It also suggested that the module was effective and that the Universal Design of Learning Model from the learners’ viewpoint put more emphasis on instruction. Its content was suitable in designing and developing module on Statistics in the higher educational context in Indonesia. The study results are expected to reveal information on how to further improve the Statistics teaching and learning quality. The implications of the researchare provided along with suggestions.This exploratory study was aimed at evaluating a module on the basis of the constructivist learning strategies to enhance the students’ motivation in Statistics learning. The design and development followed the Universal Design of Learning principles. The design included flexible instructional materials, techniques, and strategies for differentiating instruction which benefited the students of English Education Department taking the Statistics course. The study used a survey covering of 33 students. The students’ and teacher’ responses to questionnaires revealed that the students’ motivation and satisfaction increased toward the Statistics course in which Universal Design of Learning using various means of representation, action, and engagement was applied. It also suggested that the module was effective and that the Universal Design of Learning Model from the learners’ viewpoint put more emphasis on instruction. Its content was suitable in designing and developing module on Statistics in the higher educational context in Indonesia. The study results are expected to reveal information on how to further improve the Statistics teaching and learning quality. The implications of the researchare provided along with suggestions.
Enhancing primary students’ understanding of social studies through the Jigsaw approach
Authors: Jawawi Rosmawijah , Mahari Zarinah , Amjah Yusimah , Husain Shamsinar , Petra Nur-Ashikin , Shamsu Lilly Suzana
Published: November 2020

This study aimed to examine the implementation of the Jigsaw approach in teaching primary social studies in Brunei Darussalam. The topic selected for this study was on 'The Reign of Sultan Omar Ali Saifuddien III 1950 – 1967’. The sample consisted of 25 primary students in a Year 6 class. The methodology of this study was an action research. Among the instruments used were tests, observations, interviews, and students' journals. The findings showed that the students' test results had improved, indicating the effectiveness of the Jigsaw approach in teaching social studies. It was observed that there were positive developments in students’ communication skills as well as their participation in the class activities. The students' motivation to learn was mostly positive as they enjoyed learning cooperatively in the given activities. However, the challenge of implementing this Jigsaw approach was the role of the teacher as a facilitator in this approach. Future research should continue to examine the different ways of teaching social studies that could involve students' active participation in the teaching and learning process.
The effectiveness of problem-based learning model to increase the students’ critical thinking skills
Authors: Dakabesi Daud , Luoise Isana Supiah Yosephine
Published: November 2020

The previous research result showed that the learning model based on the investigation could increase the students’ critical thinking skills. The aim of this research was to measure the effectiveness of the using of problem-based learning model to increase the students’ critical thinking skills. The research design was quasi-experiment by using post-test only design. The population of this research was the eleventh grade students of science which contained 124 students of SMAN 6 and SMAN 7 Kupang that were chosen randomly. The treatment that was given in this research was problem-based learning model for the experiment class and conventional model for the control class whereas the given materials were the reaction rate. The instrument that was used in this research previously validated by two experts of theory and material. The result of this research showed that the students who studied in experiment class had different critical thinking skills better that the students who studied using conventional model.
Performance assessment: Teachers beliefs and practices in higher education
Authors: Munif Lukluk Argita , Fauziati Endang , Marmanto Sri
Published: November 2020

In educating the students, teachers’ beliefs on teaching and learning influenced not only on what to teach and how to do it, but also on how  to assess their students. Education has a goal that students can apply  the knowledge gained in real world activities. Through assessment process, it helps them to understand their strengths and weaknesses of their abilities development. This research aims to find out teachers’ beliefs about performance assessment and how they use it to assess their students in one of public college under The Ministry of Industry in Indonesia. Data findings are obtained by using interviews, observation and document analysis conducted on T1 and T2 as the participants. Researcher used the five elements of performance assessment to make the instruments and analyze the findings. Results indicated that there were differences between what they say and what they do. The differences appeared because of the theories they knew, their own knowledge and experiences they have in teaching.
Towards improving the critical thinking skills of pre-service teachers in Indonesia
Authors: Syahrial Syahrial , Asrial Asrial , Kurniawan Dwi Agus , Pratama Reza Aditya
Published: November 2020

Critical thinking of students is needed in 21st century learning, the fact is the acquisition in the field is still low. Therefore this study aims to improve students' critical thinking skills using the inquiry model assisted with the ethnoconstructivism module. Methodology uses a quantitative design of a quasi-experimental pretest-posttest non-equivalent control group design with a total sample of 64 students taken by purposive sampling technique. There were significant differences in terms of students' critical thinking between the control class and the experimental class. It can be underlined that the inquiry model with ethnoconstructivism has a significant influence on the way students think about cultural values compared to traditional groups.
Learning innovation through biopreneurship to improve the interest of entrepreneurs of madrasah aliyah students based on boarding school
Authors: Aqil Deden Ibnu , Hudaya Adeng , Wulansari Lusiana
Published: November 2020

The difficulty of entering the workforce requires the world of education to change the paradigm of thinking students from job-seeking cultures become job creators or entrepreneurs. Islamic boarding schools are educational institutions that can provide learning experiences directly to students or students. Islamic boarding school graduates do not all go to college and work immediately while the desire or interest of students for entrepreneurship is still very low. Islamic boarding schools must be able to equip students or santri by inserting learning activities with entrepreneurship education to equip them with skills. The purpose of this study was to determine the success of the implementation of learning innovations through biointpreneurship in increasing interest in entrepreneurship in Islamic boarding schools so as to inspire students to create their own work opportunities with skills in making biotech products in biology. This research is a research development (R D). The development of learning is oriented towards making biotechnology products by adding entrepreneurial concepts and then experimenting with the experimental class. Data is taken by observation and questionnaire. Data testing techniques using t-paired samples test. The results showed that there was an increase in interest in entrepreneurship from before and after the application of learning with bioentrepreneurship.
Problem based learning to increase competence of critical thinking and problem solving
Authors: Sholihah Tri Murhanjati , Lastariwati Badraningsih
Published: November 2020

Critical thinking and problem solving is one of the competencies that must be possessed to meet the 21st Century. This competence is very important to be mastered by students, especially vocational high school students. One learning model that can hone 21st Century competencies is Problem Based Learning. This research was carried out on productive subjects of the Trial. This study aims to determine the improvement of critical thinking and problem solving competencies, and student learning outcomes on subject matter subjects. This study uses a classroom action research design with measurement of competence using observation and measurement of learning outcomes using a multiple choice written test. The results of the study showed an increase in thinking and problem solving critical competencies from the first cycle of 37.4% to the second cycle of 78.2%. While the average value of the first cycle is 70.4 and the second cycle is 86.4. Students who reach KKM in cycle I are 38% and in cycle II 82%.
Digital literacy scale of English pre-service teachers and their perceived readiness toward the application of digital technologies
Authors: Liza Khaira , Andriyanti Erna
Published: November 2020

High digital literacy is significantly needed by English teachers in the trend of industrial revolution 4.0 to promote a better quality of English teaching and learning. However, a significant number of English teachers, as well as pre-service teachers, still had low digital literacy scale and they were not ready to implement digital technologies into English teaching and learning process. This study was aimed to describe the digital literacy scale of graduate school students of English Education Department in a state university in Yogyakarta as pre-service teachers and their readiness toward the application of digital technologies in teaching and learning contexts. The research used mix-methods to collect both quantitative and qualitative data through Likert-scale questionnaires and interviews. The study revealed that the research participants had high digital literacy scales and readiness toward the application of digital technologies. Thus, those graduate school students as pre-service teachers could fulfill the requirements of professional English teachers in terms of digital literacy and improve the quality of English teaching and learning output by integrating digital technologies.
Sociolinguistics perspectives on gender patterns in instagram
Authors: Yuliani Sri , Ahmad Arimuliani , Srinoviati Ikel
Published: November 2020

This article focused on the the gender patterns that were found in the social media Instagram based on the sociolinguistics point of view. There were two research questions were arisen what types of the gender patterns that were found in the social media Instagram based on the sociolinguistics and the factors of the difference language used based on gender in social media Instagram. Uses and Gratifications Theory (UGT) was used to analyze the data. The data was taken from all of component of the sociolinguistics aspect in social media network especially for gender patterns that existed on the social media instagram college students’ users id in Pekanbaru. The writer took 30 Instagram users id as sample. The study found that two types of gender patterns, first; gender in writing and second; gender in profile photo, thus there were five main assumptions that caused the differences language in gender in social media Instagram, namely; (1) an audience is active and goal-oriented in their media consumption, (2) media are used for gratifications, (3) media are in competition with other means of need satisfaction, (4) people understand their personal media use, interests, and motives enough to communicate with researchers about their choices, (5) the audience members are the only people who can make judgments regarding the value of the media content. The study recommends that sociolinguistics is an interesting topic to be researched thus future field of study concerns with the rapid changing phenomena in social media.