Digital Commons Network^™

Microwave Ore Pre-Treatment Review And Process Flowsheet Conceptualization, Baker F. Giyani

Tanzania Journal of Engineering and Technology (TJET)

The global demand for mineral commodities has increased dramatically over the years, and this is largely due to several factors, including technological advancements, industrialization, and a rise in population. Further, the demand keeps increasing because the ore being mined is becoming more complex, and the feed grade is declining over the years, prompting the need for innovative technologies to treat such ores more efficiently. Microwave ore pre-treatment is one of the potential technologies that can be employed to improve process performance. This is possible because ores are composed of both good-microwave heaters and poor microwave heaters, which creates thermal stresses …

Sundanese Performing Arts In The Us As Legacy Of The Center For World Music, Kathy Foley

Wacana, Journal of the Humanities of Indonesia

Presentation of Sundanese arts in the US by non-Sundanese grew from a program of the Center for World Music (CWM), an incubator for Sundanese performing arts practice in the San Francisco Bay area in the 1970s. Those (both Sundanese and American) coming out of that encounter engaged in intercultural teaching and performance of music, dance, and wayang (puppet/human dance theatre) in the US in the then developing programs leading to a BA or graduate degree in ethnomusicology, dance, or theatre arts. Performances by Sundanese gamelan groups with American artists in and beyond the university also developed. While such groups persist, …

Pendekatan Pembelajaran Berdiferensiasi Melalui Model Pembelajaran Kooperatif Tipe Tgt Pada Mata Pelajaran Pkn, Shalsabila Kharisma Dini Kartika

Journal of Innovation and Teacher Professionalism

Kajian ini bertujuan untuk menjelaskan implementasi pendekatan pembelajaran berdiferensiasi melalui model pembelajaran Kooperatif Tipe TGT (Teams Games Tournament) pada mata pelajaran PKn di SMP Negeri 15 Malang. Metode penelitian menggunakan pendekatan kualitatif deskriptif dengan teknik pengumpulan data berupa wawancara, observasi dan dokumentasi dengan masing-masing sumber data berupa informan guru PKn SMP Negeri 15 Malang, dokumen terkait berupa perangkat ajar dan catatan lapangan. Proses pembelajaran menggunakan pendekatan berdiferensiasi melalui model pembelajaran Kooperatif tipe TGT (Teams Games Tournament). Analisis data yang digunakan berupa analisis interaktif Miles dan Huberman, meliputi: reduksi data, penyajian data dan verifikasi. Hasil dari kajian ini menunjukkan bahwa model …

Integrated Coastal Science And Dune Management: A South Carolina Perspective, Michelle Harris

Theses and Dissertations

Historically, coastal dunes have been poorly understood from a societal perspective despite their protective role in attenuating incoming waves to reduce onshore flood risk. As developed coastlines promote strategies to design and maintain managed dune systems, it is necessary to ensure these strategies are optimized for dune health and resilience, particularly given the increasing threat of natural and anthropogenic stressors. This dissertation work aims to identify strategies that influence coastal dune management in South Carolina (SC), USA from an integrated approach, including a current use assessment, a mesoscale field-based study on strategy efficacy, and by incorporating a societal assessment and …

Thematic Geo-Inquiry In Seventh Grade Geography, Rebekah Driscoll Austing

Theses and Dissertations

With the growth of globalization, geography is an important subject for students of the 21^st Century to understand. Being adept in geography will aid our future generations to be able to use geographic skills to answer complex world issues. Unfortunately, geography has been a long-neglected subject of social studies; often considered boring and not worthwhile with teachers using teacher-centered curriculum methods and memorization. A teacher’s job is to provide appropriate experiences, materials, and context for students to construct and connect knowledge that is useful and beneficial to them. Through a constructivist lens, inquiry-based thematic units can be used by …

Out Of The Ashes: One Teacher's Journey Implementing A Blended Learning Intervention Integrating The Flipped Classroom Model And Student-Selected Independent Reading, Michael John Hockwater

Theses and Dissertations

Sixth-grade Academic Intervention Services (AIS) students at Wyndemere Middle School (WMS) in Western New York demonstrated a lack of engagement in AIS English Language Arts (ELA) class. In hopes of increasing their engagement, the teacher-researcher implemented a blended learning intervention that incorporated aspects of the flipped classroom model and student-selected texts. The results of this action research qualitative case study were promising, with many student participants expressing an increased sense of engagement and enjoyment of AIS ELA class.

On Finite Groups With Essential Dimension 2 Over ℚ, Michael Huggins

Theses and Dissertations

We determine all finite subgroups of Aut(X) which have essential dimension 2 over ℚ, where X is a minimal Del Pezzo surface of degree at least 5. Additionally, finite groups with essential dimension 2 whose order is divisible only by the prime numbers 2 and 3 are classified with the exception of the groups dic ₁₂ , C₁₂, and Dih₂₄, whose essential dimensions remain unknown, but may possibly be equal to 2.

Exploring The Correlation Between Self-Esteem And Academic Success Among Special Needs Students In Kwara State, Nigeria, Florence Famolu

Jurnal Kajian Bimbingan dan Konseling

Special education has shifted from a position of delivering professional services to students with disabilities to a system that seeks to encompass the broad concept of promoting quality education for students. This study examined the correlation between self-esteem and academic success among special needs students in Kwara State, Nigeria. the study adopted a descriptive survey research type. special needs students in the three local government areas in Ilorin, Ilorin South, East, and West Local Governments Area constituted the total population for this research. The researcher designed questionnaire was entitled: self-esteem as correlate of academic success among special needs students’ questionnaire” …

Improving Image Quality In Electrical Capacitance Tomography Using Otsu Thresholding, Josiah Nombo

Tanzania Journal of Engineering and Technology (TJET)

Electrical Capacitance Tomography (ECT) is an imaging technique used in industrial process monitoring, particularly for monitoring and measuring the composition of multiphase flows. Despite its widespread application, the commonly used Linear Back Projection (LBP) algorithm often produces low-quality images due to its limited ability to handle high permittivity contrasts and nonlinearities. This study investigates the use of Otsu thresholding as a post-processing technique to enhance ECT image quality. By maximizing inter-class variance in the image histogram, Otsu thresholding improves contrast, clarity, and structural definition, enabling more effective segmentation of oil and gas components in multiphase flows. The proposed Otsu-based reconstruction …

Supporting Airport Lost And Found Units With Surveillance Technologies Based On Deep Learning, Doaa Alahmadi, Elaf Alghamdi, Hind Bitar, Rsha Mirza

Journal of King Abdulaziz University: Computing and Information Technology Sciences

Currently, rapid growth in airports is encountered. Thus, enhancing customer experience, safety, and satisfaction using advanced technologies, such as deep learning (DL), is important. This research study explores the available DL and image processing algorithms to identify the most suitable algorithms that provide high detection accuracy to support the lost and found units in airports. Using the collected data from the surveillance camera technology in the airports, the performance of the algorithms is benchmarked and evaluated on an identical dataset to acquire an understanding of the distinctive features of each algorithm, the ability to distinguish between the algorithms and choose …

Baseer: A Drone-Based System Leveraging Facial And Pattern Recognition For Efficient Real-Time Child Recovery, Afraa Attiah, Abeer Hakeem

Journal of King Abdulaziz University: Computing and Information Technology Sciences

The loss of a child is a profound event that poses substantial emotional, psychological, and logistical challenges for families. Conventional child recovery methods, like search parties and media campaigns, often falter due to delayed responses, limited outreach, and ineffective data management. These methods struggle to handle vast information or employ modern tools efficiently. In response, this study introduces Baseer, a system merging drone technology with AI to enhance the efficacy of locating missing children. Baseer utilizes drones with high-resolution imaging systems for rapid aerial surveillance, expanding search capabilities beyond standard ground-based approaches. AI algorithms analyze real-time images for automated identification …

Um Engineers Develop Wearable Heart Attack Detection Tech, Clara Turnage

University of Mississippi News

OXFORD, Miss. – Every second counts when it comes to detecting and treating heart attacks. That's where a new technology from the University of Mississippi may come in to identify heart attacks faster and more accurately than traditional methods.

The Role Of Race In Howard Law School's Rankings, Michael Conklin

St. Mary's Law Journal

No abstract provided.

Penerapan Scaffolding Pada Zone Of Proximal Development (Zpd) Kelas X Dkv-2 Di Smk Terhadap Mata Pelajaran Sejarah, Aprilia Iva Swastika, Indah Wahyu Puji Utami

Journal of Innovation and Teacher Professionalism

Penelitian ini bertujuan untuk mengeksplorasi konsep Scaffolding dalam konteks Zone of Proximal Development (ZPD) menurut teori Vygotsky, serta mengaplikasi­kannya dalam pembelajaran sejarah di kelas X DKV-2 di SMK Negeri 10 Malang. Metode kualitatif dipilih untuk mendapatkan pemahaman mendalam tentang bagaimana ZPD dapat diterapkan dalam konteks nyata pembelajaran di sekolah menengah kejuruan. Penelitian dilakukan dengan mengamati proses pembelajaran sejarah, fokus pada interaksi antara guru dan siswa dalam implementasi konsep Scaffolding. Hasil penelitian menunjukkan bahwa penerapan Scaffolding pada ZPD dapat dilaksanakan secara efektif. Guru berperan dalam memonitor dan memberi­kan bantuan secara bertahap kepada siswa sesuai dengan tingkat kemampuan mereka, mulai dari bimbingan …

Peran Guru Dalam Meningkatkan Kreativitas Berfikir Siswa Tingkat Sekolah Dasar, Safira Ikroiyani, Lilik Bintartik, Sulistyowati Sulistyowati

Journal of Innovation and Teacher Professionalism

Kreativitas merupakan salah satau hal penting yang berkaitan dalam pembelajaran siswa di dalam kelas. Namun, dalam hal tersebut terdapat kesulitan dan tantangan yang berkaitan dengan kreativitas siswa. Terutama dalam kreativitas berpikir siswa Ketika pembelajaran berlangsung. Hal tersebut dapat dilihat dengan kurangnya minat siswa untuk berpikir secara kreatif ketika guru melakukan proses kegiatan belajar dan pembelajaran di dalam kelas. Dalam studi ini memiliki tujuan dalam menganalisis peran guru untuk meningkatkan kreativitas berpikir siswa di SDN Lowokwaru 05. Penelitian ini menggunakan metode kualitatif dengan mangacu pada model analisis data dari Miles dan Huberman. Analisis data terdiri dari beberapa langkah yakni: pengumpulan data, …

Analysis And Derivation Of The Compressible Euler System With Nonlinear Velocity Alignment: An Investigation Into Collective Behavior, Mckenzie Meredith Black

Theses and Dissertations

Collective behavior refers to the observable patterns, actions, or movements that emerge within a group of entities, such as individuals, animals, or particles, when they interact with each other. In this study, we concentrate on the pressureless compressible Euler system, expanding it to incorporate a family of nonlinear velocity alignment. This extension represents a nonlinear iteration of the Euler-alignment system within collective dynamics, revealing intriguing asymptotic emergent phenomena such as alignment and flocking. Our investigation explores different types of nonlinearity and nonlocal communication protocols, unveiling a diverse spectrum of asymptotic behaviors within the system.

In focusing on the derivation, we …

The Effects Of Implementing A Project Based Learning Framework Into A 5th Grade Science Unit On Force And Motion In A Population Of Disadvantaged Students, Kristy Martin

Theses and Dissertations

Providing quality education that meets the needs of diverse populations and economically disadvantaged students is imperative in today’s educational environments. This research study investigates the effects of implementing a project-based learning (PBL) teaching approach as part of a fifth-grade science unit on force and motion. The implications on engagement, motivation, and student achievement on standardized tests were analyzed through a mixed-methods research approach. This study is grounded in the theoretical approaches of Constructivism and Social Interdependence Theory. Both concepts support PBL and explain the positive impacts noted by the research. The participants included 56 fifth-grade students, that were primarily African …

New Deep Learning Approaches To Classical Statistical Problems, Shijie Wang

Theses and Dissertations

The field of deep learning (DL) has received considerable attention in recent years. Thanks to rapid growth in computational power, the ability to collect massive datasets, and improvements in software and algorithms, DL is now routinely applied to areas as diverse as computer vision, natural language processing, and bioinformatics. At the same time, DL is only starting to be explored in the context of classical statistical inference problems such as bootstrapping, quantile regression, and mixture modeling. In this dissertation, we develop new DL methodology for three classical statistical problems: 1) weighted M-estimation, 2) joint quantile regression, and 3) mixing density …

Understanding The Through-Space Intermolecular Interactions Of Isothiourea Catalysts In Acylation/Silylation Reactions Of Secondary Alcohols, Ziyuan Gong

Theses and Dissertations

Through space interactions, including cation-π interaction, lone pair-πinteraction, steric hinderance etc. play a central role in organocatalytic reaction. They can control the reactivity or the selectivity of an organic reaction. Previous work in our group has already shown that the chiral isothiourea compounds can catalyze the acylation as well as silylation reaction of secondary alcohol with the possible cation-πinteraction between the catalyst and substrate. However, there is lack of study to understand how the delocalization of the positive charge would affect the reaction rate and whether some unexpected inter- or intramolecular interaction could help stabilize …

The Impact Of Game Addiction On Social Sensitivity And Learning Motivation, Sihono Sihono, Muhammad Haidar Hilmi, Putri Nadha Setyaningrum, Sintha Sih Dewanti

Jurnal Pendidikan dan Pembelajaran

This study examines the impact of game addiction on social sensitivity and learning motivation among first to fourth-semester students at UIN Sunan Kalijaga Yogyakarta. The goal is to understand the extent to which game addiction affects social interactions and academic motivation. The research method used is a quantitative approach with a case study design, utilizing online questionnaires administered to 52 respondents to collect data regarding their gaming behavior, social sensitivity, and academic motivation. The analysis results show a significant negative relationship between game addiction and social sensitivity (r = -0.388, p = 0.005), as well as between game addiction and …

The Effect Of Quick On The Draw Strategy On Critical Thinking Skills Of Grade Iv, Yuniar Nur Adinda, Nyamik Rahayu Sesanti, I Ketut Suastika

Jurnal Pendidikan dan Pembelajaran

This study aims to determine whether the critical thinking skills of fourth-grade students are influenced by the application of Quick On The Draw-based learning strategies. This research methodology uses a quantitative approach with a quasi-experimental research design. The experimental class and control class received two different treatments as part of the Quasi Experiment Design research design. This study used two tests, namely validity and reliability tests needed to evaluate the test instrument. In addition, this study also used normality tests, homogeneity tests, and hypothesis tests. Of the three tests, the hypothesis test is the most important data analysis test used …

Development Of Electronic Student Worksheets On Junior High School Students' Descriptive Text Writing Skills Assisted By Liveworksheets.., Vina Aris Diana, Gallant Karunia Assidik

Jurnal Pendidikan dan Pembelajaran

This study aims to develop an Electronic Student Worksheet to improve the ability to write descriptive texts of junior high school students assisted by Liveworksheets. This study is a development research (R&D), with a research method that applies the ADDIE model consisting of five stages, namely Analysis, Design, Development, Implementation, Evaluation. The subjects in this study were grade VII junior high school students in the city of Surakarta. Based on the results of the study, it can be seen that the form of Electronic Student Worksheet contains identity, open materials, activities or practice questions, evaluations, conclusions or feedback that are …

Cakrawala: A New Pedagogical Framework For Enhancing Literacy Through Creative Problem-Solving In Project-Based Learning

Jurnal Pendidikan dan Pembelajaran

The "Design for Project Learning" instructional innovation integrates Design Thinking principles into Project-Based Learning (PjBL), enabling students to identify problems, develop creative solutions, present prototypes, and foster 21st century skills. This study aims to design a learning framework that prioritizes projects as the primary medium for learning, guided by Design Thinking principles. The methodology is based on the Plomp educational problem-solving model, limited to the first three phases: (1) the preliminary investigation phase, which involves literature review and identifying instructional strategies; (2) the design phase, where the CAKRAWALA syntax (Causal Analysis, Knowledge Repository Approach, Workflow Analysis, and Luminous Appraisal) is …

Who Am I As A Learner? The Effects Of A Self-Regulated Learning Intervention On Ninth Graders’ Academic Self-Concepts And Intrinsic Motivation, Kaitlyn Elizabeth Bailey

Theses and Dissertations

The transition from middle school to high school is a notoriously difficult one, and a student’s success in ninth grade is typically a predictor of future success in high school. Unfortunately, many ninth graders struggle to engage in school. Despite their capability to complete the work, these students appear unmotivated and simply disengaged from school. In this action research case study, three students had the opportunity to share their education stories and the experiences that have shaped their academic self-concepts. These students also participated in a self-regulated learning intervention to determine if students’ feelings of autonomy, competence, and relatedness could …

A Critical Realist Erp Implementation In Zimbabwean Mining Industry Organisations, Jairos Mukwenha

Tanzania Journal of Engineering and Technology (TJET)

This research uses a critical realist framework to examine the factors influencing the success of enterprise resource planning (ERP) system implementation in Zimbabwean mining industry organisations. From the perspective of critical realism, the mining industry in Zimbabwe faces a complex interplay of opportunities and obstacles while implementing ERP systems. The deployment of ERP in mining firms is critically examined in this paper, emphasising how these systems might improve operational efficiency while considering Zimbabwe's particular socioeconomic circumstances. By exploring underlying structures, mechanisms, and outcomes, the research aims to identify critical challenges and opportunities and develop practical recommendations for improving ERP adoption …

Development Of A Microcontroller-Based Intelligent Traffic Light Control System For Vehicular Movement In T-Junctions, Frederick O. Ehiagwina

Tanzania Journal of Engineering and Technology (TJET)

This research is devoted to the issue of regulating traffic congestion in major cities using light-dependent resistors coupled with the PIC16F877A microcontroller. This study proposes an intelligent traffic control system for T-Junctions, utilizing sensing and control to optimize traffic flow through dynamic phase adjustments and congestion reduction, enabled by a microcontroller-based decision-making system. The proposed system reduces traffic congestion, automates control, and enhances safety, minimizing accidents and lowering infrastructure costs. Under simulated environment, it demonstrates an average response time of 50 ms and achieves 99% accuracy in displaying the correct countdown. Finally, the number of state transitions handled per minute …

Prevalence Of Peri-Implantitis And Assessment Of Oral Health-Related Quality Of Life Among Patients With Dental Implants At Hospital Universiti Sains Malaysia, Esther Li-Ching Ang, Zurairah Berahim, Normastura Abd Rahman, Akram Hassan, Siti Lailatul Akmar Zainuddin

Journal of Dentistry Indonesia

Patient-reported outcomes about peri-implantitis are lacking among the Asian population, impacting decision-making in dental implant therapy. Objectives: This study aimed to assess the prevalence of peri-implantitis among Malaysian adults, and its impact on oral health-related quality of life (OHRQoL). Methods: Randomly selected 105 participants (adults aged 18 and above) having 265 implants were examined and diagnosed as with or without peri-implantitis (PI). Clinical examinations, including peri-implant probing depth, bleeding, and suppuration on probing with radiographic bone loss, were used to determine peri-implant status. OHRQoL of all participants were recorded using the short version of the Malaysian Oral Health Impact Profile …

Supershift Properties For Nonanalytic Signals, Fabrizio Colombo, Irene Sabadini, Daniele Carlo Struppa, Alain Yger

Mathematics, Physics, and Computer Science Faculty Articles and Research

The phenomenon of superoscillations is of great interest in microscopy, antenna design, and material sciences. This phenomenon has been generalized and has given rise to the concept of supershift, which is a far reaching extension that applies to functions that may present discontinuous derivatives. From this perspective, this is a notion that might have significant applications. This paper will provide an up to date report on the complex connections between the concept of supershift and that of analyticity.

Infusing Aboriginal Perspectives In Cyber Education, John Shannahan, Mohiuddin Ahmed

Research outputs 2022 to 2026

While human factors are important in cyber security, the discipline has largely not explored incorporating indigenous perspectives—or, more specifically, in an Australian context, Aboriginal perspectives—in its curricula. In this paper, we introduce a promising approach for aligning Aboriginal perspectives with the needs of cyber security graduates and incorporating diverse perspectives into cyber degrees. The approach advocates for the centrality of good curriculum design fundamentals: backward design, constructive alignment, and student outcomes. The paper ends by reflecting on challenges and lessons from the first implementation and review of the material. It provides recommendations for other cyber practitioners exploring ways of incorporating …

Technical Feasibility Analysis Of Green Energy Storage Options And Hornsea Wind Farms, Muhammad Maqbool, Jahir Rizvi, Yeaw Chu Lee, Pablo Borja

School of Engineering, Computing and Mathematics

The global transition towards clean energy sources is becoming essential to reduce reliance on conventional fuels and mitigate carbon emissions. In the future, the clean energy storage landscape, green hydrogen, and green ammonia (powered by renewable energy sources) are emerging as key players. This study explores the prospectives and feasibility of producing and storing offshore green hydrogen and green ammonia. The potential power output of Hornsea one and Hornsea two winds farms in the United Kingdom was calculated using real wind data. The usable electricity from the Hornsea one wind farm was 5.83 TWh/year, and from the Hornsea two wind …