Digital Commons Network^™

Dynamical Studies Of Misaligned Circumbinary Disks, Ian C. Rabago

UNLV Theses, Dissertations, Professional Papers, and Capstones

Binary stars are common outcomes of the star formation process, with nearly half of Sun-like stars forming as part of a binary pair. The presence of a second star adds additional complexity and dynamical effects to the planet formation process in the surrounding circumbinary disk. In this work, I investigate the behavior of a circumbinary disk using hydrodynamic modeling, specifically in the case where the disk is misaligned to the binary orbital plane. Around eccentric binaries, highly inclined disks can align themselves perpendicular to the binary orbital plane. These "polar disks'' can produce vortices and spiral arms when the disk …

Plant-Plant Interaction In Early- Vs. Late-Successional Varieties Of The Hawaiian Landscape-Dominant Tree, Metrosideros Polymorpha, Tomoko Sakishima

UNLV Theses, Dissertations, Professional Papers, and Capstones

Plant-plant interactions play an important role in assembling plant communities. Interactions between neighboring plants can vary as a result of the genetic relatedness of neighbors, impacting rates of growth and patterns of resource allocation. When growing alongside close relatives, some species decrease their growth in a form of cooperation, while others grow faster through facilitation. A complication of plant interaction studies arises because decreased growth in the presence of close relatives can also be due to competition for resources, which increases with phenotypic similarity. Further complicating matters, mycorrhizal fungi, through their connections with plant roots, may strongly influence plant interactions. …

Identifying Disease-Related Gene-Environment Interactions Based On Method Of Moments, Linchuan Shen

UNLV Theses, Dissertations, Professional Papers, and Capstones

Human diseases are often caused by a complex interplay of multiple factors, including genetics and environmental factors. These factors can play critical roles in the development and progression of diseases. Although genome-wide association studies (GWAS) have successfully identified many genetic variants associated with human diseases, the estimated effects of these variants are small and can explain only a relatively small portion of the heritability of the underlying diseases.

Detecting gene-environment interactions (G × E) can shed light on the biological mechanisms of diseases. However, most existing methods that investigate G × E only look at how one environmental …

Evaluation Of The Extent Of Floods In 2022 In Different Land Cover And Land Use Classes In Sindh Province, Pakistan Using Sentinel-1 And Sentinel-2 Imageries, Alina Shrestha

UNLV Theses, Dissertations, Professional Papers, and Capstones

Floods are one of the most frequent and most devastating natural disasters, which cause widespread destruction and pose significant risks to human life, infrastructure, and the environment. Advancement in remote sensing technologies and methodologies have demonstrated their efficacy in disaster-related applications, such as the detection, monitoring, and analysis of floods. This study explores the utilization of Synthetic Aperture Radar (SAR) and optical imagery for flood extent mapping and studying the extent of flood over various land cover and land use classes in Pakistan's Sindh province, utilizing the cloud computing power of Google Earth Engine. The change detection method identified extensive …

Online Learning For Acid-Fast Bacilli Detection In Histopathological Images, Shizhao Wang

UNLV Theses, Dissertations, Professional Papers, and Capstones

The acid-fast stain is frequently used for laboratory diagnosis of tuberculosis. It is a labor intensive task requiring thorough examination of extremely high-resolution images to pinpoint the presence of the mycobacteria. This paper presents a machine learning assisted slide image analysis tool with the aim of aiding histopathology professionals in the accurate diagnosis of tuberculosis in patients through the analysis of microscopic imagery. The proposed tool combines a digital whole slide image viewer with an online learning framework. We also conducted a survey of different state-of-the-art online learning methods, and found that MIR with pre-training has the best performance on …

Preservice Teachers' Pk-12 Educational Field Trip Experiences: Teaching Beyond The Classroom, Cecilia A. Turman

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of the study was to investigate preservice teachers’ (PSTs) attitudes and beliefs towards their PK-12 field trip (FT) experiences as students, their memories, influences in their lives, impact on their educational approaches and career choices, as well as how, as future teachers, they would implement FTs to their future students to provide feedback on FTs’ training for preparation programs. Rationale: Anderson et al. (2010) criticized teacher preparation programs’ lack of teacher training to implement educational FTs and contended that instructors’ FTs experiences as students may have influenced the way they plan and carry out educational FTs. John Dewey’s …

Enhancing The Relationships Between Students With Emotional And Behavioral Disorders And Their Teachers, Jack Watts

UNLV Theses, Dissertations, Professional Papers, and Capstones

Outcomes of students with emotional and behavioral disorders (EBD) have failed to meet the standards of educators and educational researchers. For several decades, such students have had worse academic and postsecondary outcomes than any other student population. This has led to emphasis on implementation of evidence-based practices to combat the negative outcomes associated with educational diagnoses of EBD (i.e., behavioral outbursts, suspension, and expulsion). Despite this increased attention, little improvement has occurred, leading to the question of whether practices implemented for students with EBD have been addressing the underlying causes of these students’ negative outcomes. Student–teacher relationships could be an …

Understanding Disk Substructures With 3d Self-Consistent Thermodynamics, Shangjia Zhang

UNLV Theses, Dissertations, Professional Papers, and Capstones

Protoplanetary disks are birthplaces of planets. The past decade witnessed a great advance- ment in disk observations by Atacama Large Millimeter Array (ALMA) and extreme adaptive optics (ExAOs). Hundreds of disks have been observed at high angular resolutions and revealed rich substructures (e.g., gaps/rings) at midplane and atmosphere, at least part of which are per- turbed by planets. Deep understanding of disk physics has a great potential to unveil more young planets from substructures and distinguish those that are not caused by planets. I worked on con- straining young planet populations using planet-disk interaction simulations and substructures and self-consistent treatment …

Management Of Macrovascular Diabetic Complications: A Single-Center Case Series Analysis Of Consecutively Attending Patients In Primary Care, Sanda Maria Crețoiu, Mihaela Adela Iancu, Laura Maria Condur, Teodor Salmen, Andreea Steriu, Ana Maria Alexandra Stănescu, Irina Anca Eremia, Cristina Mihaela Olariu, Eliza Elena Cinteză, Camelia Cristina Diaconu

Journal of Mind and Medical Sciences

Introduction. The prevalence of diabetes mellitus is increasing, with type 2 diabetes (T2DM) being a major health priority for any public health system. Increased arterial stiffness in patients with diabetes will lead to the appearance of vascular complications. Increased arterial stiffness in patients with diabetes usually leads to vascular complications. Any earlier diagnosis of impaired macrovascular evidence may lead to improved outcomes in patient care. The objective of our study was to assess and evaluate the finger-toe pulse wave velocity (ftPWV), as a measure of arterial stiffness, in order to assist with early detection of macrovascular diabetic complications. Materials and …

Selective Serotonin Reuptake Inhibitors And Pharmacological Resetting Of The Mind, Ion G. Motofei, David L. Rowland

Journal of Mind and Medical Sciences

Mental activity is capable of processing analytical data (mathematics, physics, socio-political science, philosophy, etc.) similar to computer software. At the same time, mental activity largely depends on the brain, which works like a hard component of a computer. While the computer stores data on a physical medium, mental activity and data are supported by physiological mechanisms that are constantly operating (both in wakefulness and sleep). For this reason, the lack of brain oxygenation even for short periods of time (5-10 minutes) causes the loss of all data, including the disappearance of the individual's existence as a mental entity. This means …

Lessons Lost: The Complicated Filtering Of History Curricula, Kate Burchnell

Quest

Argument and Proposal Essay

Research in progress for ENGL 1302: Composition II

Faculty Mentors: Lisa Kirby, PhD and Kyle Wilkison, PhD

Introduction from Dr. Lisa Kirby

It was my pleasure to work with Kate Burchnell on her paper, “Lessons Lost: The Complicated Filtering of History Curricula.” Kate’s project began as an assignment in my Fall 2021 Composition II course. This assignment allowed students to choose a topic they were passionate about, write a persuasive essay about the issue, and propose a solution to the problem. Students were encouraged to pick topics in their future professions or fields of study. As …

Bad For The Gander: New Zealand’S Failure To Learn From Thecautionary Tales Of Unreliable Forensic-Science Evidence Andwrongful Convictions Abroad, Carrie Leonetti

Ohio Northern University International Law Journal

No abstract provided.

Motherhood As Immigration In Asian American Literature, Maggie Malin

Articulāte

No abstract provided.

Articulāte Vol. Xxix

Articulāte

No abstract provided.

A Comparative Analysis Of Field Electron Emission From Carbon Black Embedded Within Insulated Copper Hollowed Wires And Glass Tubes, Hatem A. Al-Braikat, Ahmad M D Jaber, Adel M. Abuamr, Mazen A. Madanat, Aseel A. Al-Jbarart, M-Ali H. Al-Akhras, Marwan S. Mousa

Karbala International Journal of Modern Science

In this study, two different methods are used to investigate carbon black as a cold field electron emitter. The first method is to incorporate carbon black into a specially designed insulated copper hollowed wire. The wire has a cup-shaped structure created by electrochemical etching. The second method involves the incorporation of carbon black into narrow glass tubes. A Comparative analyses is carried out to evaluate the effectiveness of each method. To evaluate the performance of the samples, the current-voltage characteristics will be examined using field electron microscopes. This analysis will provide an understanding of the emission of the carbon black …

Philosophy In Science: Can Philosophers Of Science Permeate Through Science And Produce Scientific Knowledge?, Thomas Pradeu, Maël Lemoine, Mahdi Khelfaoui, Yves Gingras

Presidential Fellows Articles and Research

Most philosophers of science do philosophy ‘on’ science. By contrast, others do philosophy ‘in’ science (PinS), that is, they use philosophical tools to address scientific problems and to provide scientifically useful proposals. Here, we consider the evidence in favour of a trend of this nature. We proceed in two stages. First, we identify relevant authors and articles empirically with bibliometric tools, given that PinS would be likely to infiltrate science and thus to be published in scientific journals (‘intervention’), cited in scientific journals (‘visibility’), and sometimes recognized as a scientific result by scientists (‘contribution’). We show that many central figures …

Learning Media Using Pop-Up Book “Variety Of Traditional Houses In Indonesia” As Alternative Media In Pancasila Education For Primary School, Nurul Hidayah Rofiah, Budiyono Budiyono, Rahmatika Dewi

Jurnal Civics: Media Kajian Kewarganegaraan

The research process involved creating a pop-up book for Pancasila Education, explicitly focusing on the physical diversity of traditional Indonesian houses. The study used the comprehensive ADDIE model for research and development, involving thorough analysis, design, development, implementation, and evaluation. Data collection techniques included qualitative and quantitative methods. The results showed that the pop-up books were of high quality, with media experts assessing them at 87.1, material experts at 83.3, learning experts at 73.3, and linguists at 81.7. Field-tested, the book received high scores from teachers and students at 98.0 and 93.3, respectively. The overall score was 91.0, indicating its …

Strengthening Digital Citizenship Through Discourse Analysis Of Presidential And Vice-Presidential Candidates In The 2024 Presidential Election, Budi Mulyono, Winda Trilatifah, Ari Nasichuddin, Irwan Syambudi, Diana Trisnawati

Jurnal Civics: Media Kajian Kewarganegaraan

With the rapid advancement of information technology and increased internet access in Indonesia, citizens' participation in the digital realm has grown substantially. Digital citizens' presence is crucial in the 2024 Presidential Election, playing a pivotal role in disseminating political information, influencing public opinion, and providing support to candidates. This study examines the digital citizens' discourse on presidential and vice-presidential candidate pairs in the 2024 election in the digital public sphere. The method of issue analysis employs topic modeling with keywords "anies & muhaimin," "ganjar & mahfud," and "prabowo & gibran" on social media platform X. The research findings indicate that …

Content Analysis Of Pancasila And Civic Education Curriculum At The Junior High School Level In Indonesia: Philosophical Perspectives In Affirming Civic Identity, Sunarso Sunarso, Yayuk Hidayah, Akmal Firmansyah, Iqbal Arpannudin

Jurnal Civics: Media Kajian Kewarganegaraan

This article examines the Pancasila and Civic education curriculum at the Junior High School level in Indonesia using a philosophical approach. It analyzes the curriculum's goals, values, and principles to affirm students' civic identity. The study uses a literature analysis of scientific journals, articles, books, research reports, news, and government policies. Findings include the success of curriculum implementation, areas for improvement, and differences in approaches across schools. The authors compare teaching strategies and assessment approaches using a philosophical perspective. The quality of sources is evaluated for reliability, accuracy, objectivity, and relevance. The article recommends future research to strengthen students' understanding …

Development Of A Hybrid Reflective Micro Learning Model Based On Ict In Micro Teaching Courses, Emil El Faisal, Sani Safitri, Puspa Dianti, Dea Lestari, Sulkipani Sulkipani

Jurnal Civics: Media Kajian Kewarganegaraan

This research aims to develop a hybrid reflective micro-teaching model. The research method used is a type of research and development referring to the Borg and Gall R&D Cycle. The research results from reflection sheets indicate that some students could perceive the teaching for themselves. This is evidenced by the correspondence between friend’s assessments and the results of their reflections. However, some students seemed less attuned to what was being taught. Peer observations and reflection on students’ learning indicate a promising potential for improvement in students’ selfassessment. For instance, some students reflected “good” in planning and implementing materials but couldn’t …

How Physical Exercises Ameliorate Dysmenorrhea In Adolescence, Aqsha Wijaya, Ruswana Anwar, Qorinah Estiningtyas Sakilah Adnani, Hadi Susiarno, Insi Farisa Desy Arya, Iwan Setiawan

Jurnal Keolahragaan

Dysmenorrhea is frequently reported by adolescents. Physical exercises is one method of overcoming the symptoms of primary dysmenorrhea. Consistent physical activity has been shown to induce the synthesis of endorphins, which function as analgesics within the body. This study presents a comprehensive review to synthesize evidence regarding the relation between physical activity or exercise with dysmenorrhea and how exercise can ameliorate dysmenorrhea in adolescents. This study followed the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) method to identify articles published within the last three years (2021-2023) via PubMed, Scopus, ScienceDirect, and Google Scholar. This process yielded seven pertinent …

Research Trends In Sports Sciences In Indonesia: A Bibliometric Analysis, Hasanuddin Jumareng, Ed Setiawan, Edi Supriyadi, Rani Sugiarni, Khairul Hafezad Abdullah, Novri Gazali, Mochamad Ridwan, Gönül Tekkurşun Demir, Martin Hofmeister

Jurnal Keolahragaan

This study presents a comprehensive bibliometric analysis of research trends in the field of sport science in Indonesia. Using a bibliometric approach, 128 relevant articles were collected, consisting of articles published in journals, written in English, and originating from Indonesia. This research focuses on analysing publication patterns and trends, with particular emphasis on publication year, affiliated institutions, and leading authors in the field of sport science. The analysis showed that 2020 was the year with the highest number of publications, indicating an increased interest and dedication to sport science research in Indonesia during that period. Among the various educational institutions …

A New Dimension In Learning Badminton Refereeing: A 3d Simulation Android App With Virtual Reality Integration, Novri Gazali, Romi Cendra, Yoyon Efendi, Edi Setiawan, Alexandre Igor Araripe Medeirosd, Liwa Ul Hamdi

Jurnal Keolahragaan

Virtual reality (VR) technology has become increasingly popular and widely used in sports environments in higher education, but there are still some challenges that need to be overcome. This research aims to create an Android-based 3D simulation application with the help of virtual reality as a learning tool for badminton refereeing. The methodology used is the Multimedia Development Life Cycle (MDLC). The multimedia development methodology consists of six stages, namely concept, design, material collection, creation, testing, and distribution. This application shows great potential for supporting the development of human resources in the field of badminton sports, both for novice referees …

Need Analysis For Innovation In Integrated Learning Models For Micro-Teaching Course: Explanatory Sequential Design, Jusuf Blegur, Amung Ma'mun, Berliana Berliana, Agus Mahendra, Michelle Mordeno Layao

Jurnal Keolahragaan

One of the keys to successful learning model development is conducting a comprehensive needs analysis on actual performance, desired performance, and causes of performance gaps. This research aims to analyze student performance needs so that they can become a credible basis for consideration when designing the syntax of learning experiences for integrated learning models for micro-teaching courses. Researchers used an explanatory sequential design when completing the study, so quantitative research became the main focus for data collection and analysis, which was emphasized by qualitative studies. There were 107 research respondents, namely 75 students, two lecturers, and 30 physical education teachers. …

Multifidelity Comparison Of Supersonic Wave Drag Prediction Methods Using Axisymmetric Bodies †, Troy Abraham, David Lazzara, Douglas Hunsaker

Mechanical and Aerospace Engineering Student Publications and Presentations

Low-fidelity analytic and computational wave drag prediction methods assume linear aerodynamics and small perturbations to the flow. Hence, these methods are typically accurate for only very slender geometries. The present work assesses the accuracy of these methods relative to high-fidelity Euler, compressible computational-fluid-dynamics solutions for a set of axisymmetric geometries with varying radius-to-length ratios (R/L). Grid-resolution studies are included for all computational results to ensure grid-resolved results. Results show that the low-fidelity analytic and computational methods match the Euler CFD predictions to around a single drag count (~1.0 × 10^–4) for geometries with R/L ≤ 0.05 …

Implementasi Kebijakan Peraturan Anri 6/2021 Pada Fungsi Kearsipan Sekretariat Ditjen Kementerian X Ri, Namira Rahmi Zahara, Nina Mayesti

Jurnal Ilmu Informasi, Perpustakaan, dan Kearsipan

This study discusses the Policy Implementation of ANRI Regulation 6/2021 on The Archives Functions of the Secretariat of the Directorate General of Ministry X RI by using the concept of policy implementation George C. Edward III, namely communication, resources, disposition, and bureaucratic structure. This research uses a qualitative approach with a case study method. This study concludes that implementing the ANRI 6/2021 regulation at the Secretariat of the Directorate General still needs to improve or is not optimal in every influencing factor. This research suggests that the Secretariat of the Directorate General needs commitment, honesty, and also a perspective in …

Uncertainty Evaluation For The Determination Of Four Quinolone Residues In Honey By Liquid Chromatography-Tandem Mass Spectrometry, Yang Yun, Cao Yang, Li Jing, Zhong Feifei, Zuo He

Food and Machinery

Objective: This study aimed to evaluate the determination uncertainty of four quinolones residues in honey by liquid chromatography-tandem mass spectrometry （LC-MS/MS）. Methods: Based on GB 31657.2—2021, a mathematical model for sources of uncertainty evaluation was established. The uncertainty of each variable which affect the result were calculated and the weight of each uncertainty component was assessed. Results: The uncertainties in the determination of enrofloxacin, sarafloxacin, ofloxacin and ciprofloxacin in honey were （4.97±0.81）, （10.13±1.58）, （7.67±1.23）, （14.97±2.25） μg/kg （P=95%，k=2） respectively. Conclusion: The main influencing factors of the determination uncertainty were preparation and dilution process of standard solution and …

Research On The Tooth Roll Power Of Roller Mill Based On Discrete Element, Zhao Qifeng, Wu Wenbin, Wang Xuefeng, Jia Huapo

Food and Machinery

Objective: To optimize the operating parameters of wheat milling in roller mill I skin mill to reduce the energy consumption of milling. Methods: Using EDEM discrete element simulation software, Box-Behnken test was designed for key milling factors such as roll pitch, feeding amount, rotational speed and rotational speed ratio to investigate the relationship between operating parameters and milling power. Results: The significance rankings of the effects on the toothed roll crushing power were, in order, speed ratio, roll pitch, feed volume, speed ratio quadratic term, roll pitch quadratic term, interaction of roll pitch and speed ratio, interaction of feed volume …

Upcycling Of Sugar Refining Mud Solid Waste As A Novel Adsorbent For Removing Methylene Blue And Congo Red From Wastewater, Aly Reda Aly, Abdel Ghafar El-Demerdash, Wagih Sadik, Essam El Rafy, Tamer Shoeib

Faculty Journal Articles

The feasibility of utilizing the mud solid waste (MSW) produced during the carbonation process of sugar refining as a cost-effective and environmentally friendly alternative for the water removal of methylene blue (MB) and Congo red (CR), being highly utilized organic dyes representing cationic and anionic species, respectively is presented. Prior to its use, the MSW was dried at 110 °C for 24 h and sieved through a 100-mesh screen. The chief constituent of the MSW utilized was CaCO3, with a point of zero charge (PZC) found at pH 8.4 and 7.96 m2 g−1 total surface area. XRD and FTIR data …

Experimental Analysis Study Wave Drift Force Of Moored Floating Production Units (Fpu), Arifin Rifliansah, Wibowo Harso Nugroho

Makara Journal of Technology

Drift forces caused by sea waves and currents are an important aspect that needs to be studied in planning moored floating structures, especially Floating Production Units (FPU) type ships which are operated for oil and gas exploration. This study describes the drift forces on the FPU which is subjected to environmental loads in the form of waves. The slow-drift movement that occurs in a moored FPU, and experiencing irregular waves is a very important problem. The complexity of determining drift forces analytically and numerically requires the use of hydrodynamics model test. In the model test on a certain model scale …