Digital Commons Network^™

Kesalahan Konstruksi Konsep Mahasiswa Dengan Identitas Matematis Yang Sangat Negatif Pada Materi Ukuran Pemusatan Data, Fadhi Zil Ikram, Subanji Subanji, Erry Hidayanto

Jurnal Pendidikan Sains

This research is a case study that explores the error in concept construction of undergraduate students’ with very negative mathematical identity. The construction was examined through the APOS theory. The student participating in the study was a student in the accounting department. Results showed that the student with very negative mathematical identity did not think much when choosing the most suitable measure of central tendency for a particular data. The student did not take into account the existence of outlier and mode, how the mean involves every data element, and whether the data distribution was normal or not.

Development Of A Physics Module On Work And Energy Based On Stem Education For Vocational High School Students, Ratika Sekar Ajeng Ananingtyas

Jurnal Pendidikan Sains

The need for human resources who have knowledge and skills in the STEM fields is getting bigger. However, from the results of research by PISA, Indonesian students' scores in science, reading, and mathematics were still low. This research was conducted to develop a physics module based on STEM education for vocational high school students and to test it’s feasibility. This research adapted the Dick and Carey development research design. The data were obtained from questionnaires about the feasibility and were analyzed qualitatively and quantitatively. From the results of the validation and feasibility test, the module was very feasible to use.

A Review Of The Effects Of Dietary Restriction, Dehydration, And Caffeine Withdrawal On Cognition: Implications For A Disabled Submarine Scenario, Sarah Chabal

Journal of Human Performance in Extreme Environments

In the event that submariners become trapped aboard a disabled submarine (DISSUB), they must perform a multitude of cognitively demanding tasks in order to maximize their likelihood of survival. During this time, submariners will also be forced to endure poor living conditions, including drastic changes to their nutrition. These nutritional changes have the potential to impair submariners’ cognitive functioning and affect operational performance, which could jeopardize survival; however, the effects of DISSUB nutrition on cognitive performance are not well understood. This review first describes the unique nutritional conditions that submariners will experience in a DISSUB scenario, including the change to …

The Environmental Protection Agency’S Role In U.S. Climate Policy- A Fifty Year Appraisal, Jody Freeman

Duke Environmental Law & Policy Forum

No abstract provided.

Fatigue Crack Growth And Fatigue Fracture Morphology Of Recycled Rubber Powder Filled Nr/Br Blend Compound, Ismawi Hassim Dh Abang, Frank Abraham, John Summerscales

School of Engineering, Computing and Mathematics

The effect of two different types and particle sizes (micronised cryo-ground 74 m or ambient ground 400 m) of recycled rubber powder (RRP) were studied during fatigue crack growth (FCG) in NR/BR compound using a fracture mechanics approach. Absolute and relative hysteresis losses using single-edge notch tensile (SENT) specimens were determined with a displacement controlled strain compensating for permanent set of the samples throughout the FCG experiments. Differences in relative hysteresis loss showed that additional energy dissipation, due to multiple new crack surfaces at the crack tip, contributes to the FCG of the RRP compounds. At higher tearing energy, beside …

Facial Recognition In Law Enforcement, Cameron Martin

Seattle Journal for Social Justice

No abstract provided.

Red Scare Or Red Herring: How The “China Initiative” Strategy For Non-Traditional Collectors Is Stifling Innovation In The United States, Bianca Tillman

Seattle Journal of Technology, Environmental, & Innovation Law

In 2018, the U.S. Department of Justice launched the “China Initiative” in response to the growing economic and national security threat posed by China. The China Initiative is a sweeping federal plan designed, in part, to protect the United States’ status as a leader in global innovation and scientific discourse. The U.S. is justified in its concern over China’s unfair practices to achieve military, technological, and economic prominence. While U.S. and Chinese intelligence agencies have spied on each other for decades, China has increased both the scope and the sophistication of its efforts to steal secrets from the U.S. in …

Pengembangan Model Pelukan Hots Bagi Guru Sekolah Dasar, Hana Septina Kristanti, Yari Dwikurnaningsih, Wasitohadi Wasitohadi

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study aims to describe the existing HOTS learning training, its strengths and weaknesses, and to develop a HOTS learning inductive training model for elementary school teachers. This research method is R&D. The research results reveal: (1) teacher training on HOTS so far has only focused on preparing HOTS questions, (2) training so far has not answered the needs of elementary school teachers both in terms of material and self-development. Strengths all primary schools, both public and private, have teacher representatives who have received training on HOTS topics, and (3) creation of HOTS Hugging Model for Elementary School Teachers who …

Beban Kognitif Siswa Dalam Pembelajaran Matematika Berorientasi Pada Higher Order Thinking Skills (Hots), Riya Dwi Puspa, Abdur Rahman As’Ari, Sukoriyanto Sukoriyanto

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This research is research that have purpose to describe students’ cognitive loads in mathematic learning oriented to Higher Order Thinking Skills (HOTS). Research method that is used in this research is descriptive qualitative. The results showed that the intrinsic cognitive loads were caused by students’ difficulties in finding concept of integral, students’ difficulties in doing operation of algebraic form, students’ difficulties in solving HOTS problems at level of analyzing, evaluating and creating. Extraneous cognitive loads were caused by using local language that is used by teacher for giving information, time alocation for doing discussion was too short, noise during the …

Analisis Profil Pemahaman Dan Ketertarikan Mahasiswa Biologi Pada Stem Education, Eka Kurniati, Hadi Suwono, Ibrohim Ibrohim

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

STEM Education is currently attracting the attention of many parties including biology students to apply in the classroom. Students' understanding and interest in STEM Education are two basic things to support the successful implementation of STEM Education. Nevertheless, studies on student profiles related to the understanding and interest of STEM Education especially in biology students are still difficult to find. The objectives of this article was to investigate the profile of understanding and interest in STEM, which was analyzed in a descriptive quantitative manner by conducting a survey of 42 masters in biology education. The findings indicate that biology students …

Pengembangan Lembar Kerja Siswa Berbasis Problem Based Learning Berbantuan Papan Lipat Untuk Mendukung Pemahaman Konsep Pecahan Siswa Kelas Iv, Nita Retno Wahyuningati, Cholis Sa’Dijah, Sa’Dun Akbar

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The purpose of the Research and Development is to Lembar Kerja Siswa a valid, practical, effective worksheet about fractions for elementary school students. Based on the assessment of the material experts, media experts, and users of both teachers and students can be obtained the following information. First, the development of PBL-based worksheet has fulfilled the valid criteria of 85%. Second, it fulfills practical criteria with an average overall response of teacher and student questionnaires of 87%. Third, it has fulfilled the effective criteria with an overall teacher and student response questionnaire of 87%. The results showed that the development of …

Pengembangan Bahan Ajar Tematik Digital Untuk Siswa Kelas V Sekolah Dasar, Dina Yuli Agustin, Punaji Setyosari, Suharti Suharti

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The development of digital thematic teaching materials aims to produce a product that is feasible, practical to use, effective for improving the quality of learning, and interesting for students to learn. The results of the development showed a positive impact from the use of the product with an increase in learning activities of 92.14% with the criteria of "very good". Positive results were also shown from the effectiveness of student learning, the pretest value of 60.54 increased significantly in the posttest value of 84.79. In the feasibility analysis obtained a percentage of 86.04% with the criteria "very feasible", practicality 91.07% …

Pengaruh Pembelajaran Inkuiri Dengan Scaffolding Terhadap Keterampilan Proses Sains Dan Pemahaman Konsep Siswa Pada Materi Cahaya, Dimas Abdi Haidar, Lia Yuliati, Supriyono Koes Handayanto

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The purpose of this study is to examine the effect of inquiry learning with scaffolding on science process skills and understanding of light material concepts in fourth grade students. This type of research is a quasi-experimental design with a non-equivalent control group. The samples taken were students of class IV A (experimental) with 25 students and class IV B (control) with 22 students. The results of this study indicate that the value of science process skills and the percentage of students' understanding of concepts in light material in the experimental class have a significant increase compared to the control class. …

Kesulitan Siswa Dalam Menyelesaikan Masalah Matematika Berdasarkan Langkah Polya, Amanda Putri Enlisia, Swasono Rahardjo, Sisworo Sisworo

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The purpose of this study is to describe students' difficulties in mathematicals problem solving based on Polya's. The subjects in this study were 2 students of class VII. This type of research is descriptive qualitative. Data collection techniques through problem solving tests and interviews. The results of this study are (1) steps to understanding the problem that students have difficulty in understanding the sentences or terms contained in the problem, and students also have difficulty in finding keywords in the problem; (2) steps to devising the plan that students cannot make a mathematical model; (3) steps to carry out planning …

Pengembangan Bahan Ajar Berbasis Pendidikan Matematika Realistik Indonesia (Pmri) Untuk Mendukung Kemampuan Pemecahan Masalah Operasi Hitung Pecahan, Ahyansyah Ahyansyah, Cholis Sa’Dijah, Abd. Qohar

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This research and development was aimed to produce teacing materials supporting the process of learning mathematics based on Indonesian realistic mathematics education (PMRI) to support the mathematical problem solving skills of fraction counting operations that meet valid and practical criteria. This research and development uses Plomp Model which three steps namely (1) preliminary research, (2) prototype phase, (3) assessment. The results show that the validity test results of teaching materials have met the valid criteria with a percentage of 83.7%. Meanwhile, the practical test results of teaching materials meet very practical criteria with a percentage of 90.2%.

Are We Reversing The Trend In Waste Generation: Panel Data Analyses Of Municipal Waste Generation In Regard To The Socio-Economic Factors In European Countries, Predrag Korica, Andreja Cirman, Andreja Žgajnar Gotvajn

Economic and Business Review

The purpose of this research is to investigate whether there is a decline in the amounts of generated municipal waste that is influenced by the changes which cannot be attributed to the changes in the socio-economic variables and can therefore be ascribed to a changing behaviour and the effectiveness of the policies implemented with the aim of preventing generation of waste. The analyses in this paper cover the data of 30 European countries in the period 2002–2015. The method applied is the panel data analysis of the data on seven socio-economic variables by using both the fixed-effect and the random-effects …

Deconvolution Of Mono-Energetic And Multi-Lines Gamma-Ray Spectra Obtained With Nai(Tl) Scintillation Detectors Using Direct Matrix Inversion Method, Mwingereza John Kumwenda Dr

Tanzania Journal of Engineering and Technology (TJET)

Performance of a NaI(Tl) scintillation detector based on the gamma-ray spectroscopy system is not satisfactory in retaining its original peak (which is delta like function) of various gamma ray spectrum. The method of achieving precise peak for the various gamma ray was conducted by converting the observed pulse-height distribution of the NaI(Tl) detector to a true photon spectrum. This method is obtained experimentally with the help of an inverse matrix deconvolution method. The method is based on response matrix generated by the Monte Carlo simulation based on Geant4 package of mono-energy gamma-ray photon ranging from 0.050 to 2.04 MeV in …

Analysis Of Performance Characteristics Predicted From Several Experimental Data And Conversion Methods For Pumps As Turbine Application Using Statistical Techniques, Ombeni J. Mdee

Tanzania Journal of Engineering and Technology (TJET)

Different performance characteristics have been indicated when running centrifugal pumps in the reverse direction. The water flows from the discharge side of the pump to the suction side to run in the reverse direction and generate the mechanical rotational energy for the micro-hydropower plant. The current study evaluates the extent of variation of performance characteristics predicted by several experimental data from different pump-specific speeds and conversion methods. The performance characteristics discussed include the head, flow rate, efficiency and specific speed. The flow rate and head of a pump operating in pump mode divided with the characteristic of the pump operating …

Internal And External Determinants Of Housing Price Boom In Hong Kong, Farhad Taghizadeh-Hesary, Naoyuki Yoshino, Aline Mortha, Alvin Chiu, Niki Naderi

Bulletin of Monetary Economics and Banking

Hong Kong’s housing market witnessed a dramatic housing price appreciation in recent years, with the price index for private domestic housing units being three times higher than ten years ago. This trend is supported by both internal and external factors, as illustrated in this paper. By developing a theoretical model and an empirical analysis on the key variables influencing housing prices using monthly data from 1999 to 2018, we find that the main drivers of housing price appreciation are from the demand side and include income level, money supply and inflation. The main contribution of this study is the quantification …

Making Dreams Come True At Fhsu, December 31, 2020, Tisa Mason Ed.D.

Heart of a Tiger Columns

No abstract provided.

Dust Palliative Mean Particle Residence Time Calculator, Jonathan Metzgar

CSET Project Reports

Previous research efforts at UAF have established that dust palliative performance may be compared using a calculation called the mean particle residence time (tau, or MPRT). The MPRT value is computed using linear regression techniques to determine the time when the dust palliative loses its effectiveness. A technician tests the palliative using a dustfall column and a nephelometer to measure the concentration of PM10 over time. The technician needs to manually process this raw data with an Excel spreadsheet making dust palliative MPRT reports time-consuming and prone to error. Finally, the certifying technician prints and files the report for future …

Addressing Ad-Blocking Challenges In Online Publishing: A Data Science Approach, Shuai Zhao

Dissertations

The revenue of online display advertising is expected to reach 389 billion U.S. dollars globally in 2021. However, the fast increase in ad-blocker usage impacts publishers' ad revenue and the ad-supported free web. Faced with this problem, many online publishers choose either to cooperate with ad-blocker software companies to show acceptable ads or to build a wall that requires users to whitelist (i.e., turn off ad-blockers) for content access. This dissertation aims to deepen the understanding of existing counter-ad-blocking strategies and further explore how to address ad-blocking challenges through a data science approach.

The dissertation starts with investigating and identifying …

Investigating The Lack Of Consensus Among Sentiment Analysis Tools, Ma Palomino, Ap Varma, A Connelly

School of Engineering, Computing and Mathematics

Sentiment analysis, the classification of human emotion expressed in text, has the potential to enhance our ability to analyse the ever growing amount of information published each day on social media. Thus, we compare here seven of the most well-regarded sentiment analysis tools, and conclude that none of them is sufficiently reliable to be used on its own. Combining them and relying on their results only when various tools reach an agreement seems to be a better option. The pros and cons of such an approach are discussed in this paper, while providing recommendations related to the usability of the …

Relationship Between Hotels' Design Adequacy And Hoteliers' Perception Of Sustainable Energy Management In Abuja, Nigeria, Aisha Isa Shehu, Bala Ishiyaku, Hadiza Balarabe Kudan, Sani Inusa Milala

Journal of Environmental Science and Sustainable Development

Energy is a sustainability issue receiving primary global concern. Improving energy efficiency and utilizing renewable resources are important in building energy sustainability. An energy-efficient design is a basis for controlling energy efficiency in buildings, and it is highly motivated by the sustainable energy management perception of relevant stakeholders. Hotels have high energy intensities and high working costs. This study investigates the relationship between hotel design adequacy and hoteliers' perception of sustainable energy management in Abuja, Nigeria. The investigation embraces quantitative structure utilizing exploratory and elucidating techniques. The mean ranking and Pearson product-moment correlation results revealed substantial and weak positive correlations …

Statistical Modeling Of Quarrying Activities And Their Impact On Residents’ Satisfaction, Jefferson M. Domingues, Vania F. L. Miranda, Denise C. Rezende, Yara S. Lares, Saulo R. Ferreira, Izabela R. C. De Oliveira

Journal of Environmental Science and Sustainable Development

This research aims to analyse the impact of quarrying on the health and perception of neighbouring communities. A standard questionnaire survey was conducted to collect data from quarry neighbours in a residential neighbourhood located in the city of Lavras, Minas Gerais, Brazil. Residences were distributed based on proximity to a quarrying company, resulting in three distances divided by three equally distant radii, named as Area I (closest to the quarrying company at 630 m), Area II (730 m), and Area III (farthest from the quarrying company at 830 m). Data gathered from 177 residents were analysed with logistic regression models. …

Research Productivity Of Chemistry Department, Tezpur University: A Scientometric Study, Nayana Borah Research Scholar

Library Philosophy and Practice (e-journal)

The purpose of the study is to evaluate the research publication of Chemistry department, Tezpur University. The SCOPUS database has been used to extract the data published during 2000 to 2020. The retrieved data has been analyzed on the following parameters; year-wise distribution of publication, form-wise distribution, authorship pattern, degree of collaboration, most productive authors, collaborative institution and preferred source for publication. A total of 1148 records have been retrieved and MS Excel is used to analyze the data. During the time period, the highest number of publication was in 2014, 95.56% of the publication were published in the form …

Centering The Arts In Stem, Fay Cobb Payton

The Transdisciplinary STEAM+ Journal

A reflection on a STEAM initiative: NC State University Alumni and their children attended free STEAM (Science, Technology, Engineering, Arts, and Math) family workshops at D.H. Hill Library. This program was a collaboration between Dr. Fay Cobb Payton, professor of Information Systems/Technology and University Faculty Scholar at NC State, the NCSU Libraries, and Arts NC State

Evolution Of Island, Dominique Kongsli

The Transdisciplinary STEAM+ Journal

Evolution of Island emerged from the depths of an ocean of blue paint. My process involves observation of nature: I remember scuba diving in Thailand in the Andaman Sea and having a spiritual experience underwater while observing Christmas-tree worms pop in and out of the coral.

The Beautiful Math Of Everything And You Included, E. Ozie

The Transdisciplinary STEAM+ Journal

This a reflection on how there is beautiful math to everything. An author's interpretation of matrices and mechanics in its relationship to someone's identity.

Drawing Parallels In Art Science For Collaborative Learning: A Case Study, Karen Westland

The Transdisciplinary STEAM+ Journal

This research paper explores drawing as a tool to facilitate interdisciplinary practice. Outlined is the personal experience of PhD researcher [name removed] in their physics/craft research project, combined with thoughts and opinions from collaborators gathered through group discursive interviews. Interdisciplinary projects face interpersonal and conceptually ambiguous challenges which can be addressed through adopting drawing techniques for educational purposes. Findings highlight that drawing can assist across a breadth of applications as a learning tool for everyone, regardless of drawing ability, to improve the functionality of collaborative projects. Specifically, drawing combined with other communication techniques develops a performative communicative approach that enriches …