Digital Commons Network^™

Photonic Monitoring Of Atmospheric Fauna, Adrien P. Genoud

Dissertations

Insects play a quintessential role in the Earth’s ecosystems and their recent decline in abundance and diversity is alarming. Monitoring their population is paramount to understand the causes of their decline, as well as to guide and evaluate the efficiency of conservation policies. Monitoring populations of flying insects is generally done using physical traps, but this method requires long and expensive laboratory analysis where each insect must be identified by qualified personnel. Lack of reliable data on insect populations is now considered a significant issue in the field of entomology, often referred to as a “data crisis” in the field. …

Twitter Sentiment Analysis: Applications In Healthcare And Finance, Jiali Wang

Dissertations

This research explores the influence of Twitter sentiment on healthcare and finance industries. It assesses how Twitter sentiment and culture measure influence COVID-19 statistics, and it investigates the impact of Twitter sentiment on S&P 1500 stock mispricing. Furthermore, it examines how tweet sentiment predicts major industry returns.

The first part examines how Hofstede’s Culture Dimensions (HCD) and Twitter economic uncertainty index (TEU) relate to COVID-19 infection rate and death rate. The results show certain aspects in HCD, such as power distance index (PDI) and masculinity (MAS) both are negatively and significantly associated with the infection rate, while indulgence (IVR) and …

Integrated Machine Learning And Optimization Approaches, Dogacan Yilmaz

Dissertations

This dissertation focuses on the integration of machine learning and optimization. Specifically, novel machine learning-based frameworks are proposed to help solve a broad range of well-known operations research problems to reduce the solution times. The first study presents a bidirectional Long Short-Term Memory framework to learn optimal solutions to sequential decision-making problems. Computational results show that the framework significantly reduces the solution time of benchmark capacitated lot-sizing problems without much loss in feasibility and optimality. Also, models trained using shorter planning horizons can successfully predict the optimal solution of the instances with longer planning horizons. For the hardest data set, …

Faceted Nanomaterial Synthesis, Characterizations And Applications In Reactive Electrochemical Membrane Filtration, Qingquan Ma

Dissertations

Facet engineering of nanomaterials, especially metals and metal oxides has become an important strategy for tuning catalytic properties and functions from heterogeneous catalysis to electrochemical catalysis, photocatalysis, biomedicine, fuel cells, and gas sensors. The catalytic properties are highly related to the surface electronic structures, surface electron transport characteristics, and active center structures of catalysts, which can be tailored by surface facet control. The aim of this doctoral dissertation research is to study the facet-dependent properties of metal or metal oxide nanoparticles using multiple advanced characterization techniques. Specifically, the novel atomic force microscope-scanning electrochemical microscope (AFM-SECM) and density functional theory (DFT) …

Helioseismic Diagnostics Of Active Regions And Their Magnetic Fields, John T. Stefan

Dissertations

While two and a half decades of nearly constant observation by the Solar and Heliospheric Observatory (SOHO) and the Solar Dynamics Observatory (SDO) spacecraft have yielded key insights into the structure and dynamics of active regions, it is still unclear if active regions can be identified before emerging on the solar surface and, once emerged, whether the subsurface structure of an active region’s magnetic field can be measured. Regarding the dynamical processes associated with active regions, the height and mechanism of sunquake excitation remains poorly understood. To answer these questions, a comprehensive survey of active region magnetic fields and their …

Hydrodynamic Investigation Of The Discharge Of Complex Fluids From Dispensing Bottles Using Experimental And Computational Approaches, Baran Teoman

Dissertations

The discharge of non-Newtonian, complex fluids through orifices of industrial tanks, pipes, dispensers, or packaging containers is a ubiquitous but often problematic process because of the complex rheology of such fluids and the geometry of the containers. This, in turn, reduces the discharge rate and results in residual fluid left in the container, often referred to as heel. Heel formation is undesired in general, since it causes loss of valuable material, container fouling, and cross-contamination between batches. Heel may be of significant concern not only in industrial vessels but also in consumer packaging. Despite its relevance, the research in this …

The Future Of The Urban Street In The United States: Visions Of Alternative Mobilities In The Twenty-First Century, Esther Zipori

Dissertations

This dissertation is concerned with the present and future of urban streets in the United States. The goal is to document and analyze current visions, policies, and strategies related to the form and use of American urban streets. The dissertation examines current mobility trends and offers a framework for organizing visions of the future of urban streets, evaluating them through three lenses: safety, comfort, and delight: assessing physical conditions in accordance with livability standards toward sustainable development. At the same time, it demonstrates the way 12 scenarios (NACTO Blueprint for Autonomous Urbanism, Sidewalk Labs: Quayside Project, Public Square by FXCollaborative, …

Interactions Of Amyloid Peptides With Lipid Membranes, Yanxing Yang

Dissertations

The aggregation of amyloid proteins into fibrils is a hallmark of several diseases including Alzheimer’s (AD), Parkinson’s, and Type II diabetes. This aggregation process involves the formation of small size oligomers preceding the formation of insoluble fibrils. Recent studies have shown that these oligomers are more likely to be responsible for cell toxicity than fibrils. A possible mechanism of toxicity involves the interaction of oligomers with the cell membrane compromising its integrity. In particular, oligomers may form pore-like structures in the cell membrane affecting its permeability or they may induce lipid loss via a detergent-like effect. This dissertation aims to …

Microhydrodynamic, Kinetic And Thermal Modeling Of Wet Media Milling For Process Optimization And Intensification, Gulenay Guner

Dissertations

Nanoparticle production by wet stirred media milling (WSMM) is a common method for the formulation of poorly water-soluble drugs. While most of the studies in the WSMM literature focus on the formulation aspects to overcome the stability challenges, a thorough mechanistic understanding of the process is lacking, and the process is slow, costly, and energy-intensive. This dissertation presents experimental and modeling work with the ultimate goals of (i) gaining a deeper and more mechanistic understanding of the WSMM process and breakage kinetics of the particles using a microhydrodynamic model with various improvements and advancements, (ii) examining the heat dissipation during …

2021-2022 Cali Immersive Residency Program, John J. Cali School Of Music

2021-2022

No abstract provided.

Advocacy Leadership And The De-Professionalising Of The Special Educational Needs Coordinator Role, Elizabeth J. Done

Plymouth Institute of Education

The UK government is proposing to replace M-level National Award for Special Educational Needs Coordination (NASENCO) training, mandated for SENCos (SEN Coordinators) in England, with an unaccredited NPQ (National Professional Qualification). Such downgrading their level of qualification is intended to significantly increase the number of qualified SENCos, however, this is likely to reduce SENCos’ capacity to exercise ‘advocacy leadership’ in support of students at risk of marginalisation and social exclusion. We reject a neoliberal political discourse of continual improvement that neglects the need for critical literacy and research-informed inclusive practice on the part of SENCos, and suggest that endemic exclusionary …

Metacognitive Skills Of Student In Solving Problems Of Two-Variable Linear Equation Systems In Terms Of Self-Regulated Learning, Erlina Zulva Rahmawati, Nining Setyaningsih

Jurnal Riset Pendidikan Matematika

It is empirically known that metacognitive skill contributes to self-regulated learning. This study aims to describe students' metacognitive skills in three levels of self-regulated learning, particularly in solving problems of a two-variable linear equation system. Three indicators were used in metacognition skills, namely planning indicators, monitoring indicators, and evaluation indicators. Employing a descriptive qualitative approach, this study involved All students of grade VIII A of the academic year 2021/2022 from a state junior school as subjects involving each category for high, medium, and low self-regulated learning. The data were collected using questionnaires, tests, interviews, documentation, and observation. A triangulation method, …

Critical Thinking Assessment In The Teaching Of Writing Indonesian Scientific Texts In High School, Rustam Rustam, Priyanto Priyanto

Jurnal Penelitian dan Evaluasi Pendidikan

The assessment of critical thinking in the teaching of Bahasa Indonesia is an essential part of teaching syntax because most Bahasa Indonesia teachers of high schools in Jambi still use objective test assessments or low-order thinking skills (LOTS). In fact, there are still many Bahasa Indonesia teachers of high schools in Jambi who have not implemented HOTS-based assessment, so the teaching process and learning outcomes of writing HOTS-based scientific texts are still low. To overcome this problem, it is necessary to study the critical thinking assessments in writing Indonesian scientific texts in high school to find authentic and contextual assessment …

The Evaluation Of Lecturer's Improvement Programs Through Academic Culture And Services, Connie Chairunnisa, Istaryatiningtias Istaryatiningtias

Jurnal Penelitian dan Evaluasi Pendidikan

This study evaluated the program to improve postgraduate lecturers' performance at Muhammadiyah University Prof. Dr. Hamka (UHAMKA). This study used a mixed-method sequential explanatory design. The primary data were collected using questionnaires for lecturers, study program coordinators, and students. The primary data were presented by observations and interviews with the Director of UHAMKA Postgraduate. The data analysis was carried out using differential statistics to support the interview and documentation results. The most prominent result was the Institute's concern for the lecturer problem, with the respondents' answers showing strong concern (13%), concern (45.7%), and immediate concern (41.3%). The Institute's concern for …

Does The Policy Regarding The Role Of The National Examination In Determining Graduation Affect Student Achievement?, Rasmuin Rasmuin

Jurnal Penelitian dan Evaluasi Pendidikan

From 2004 to 2018, the national examination (NE) has undergone three policy changes regarding its role in determining graduation. The NE score was decided to be the sole determining factor for student graduation in the period 2004 to 2010, with the school examination score being the determinant of student graduation from 2011 to 2015 and no longer a determinant of student graduation from 2016 to 2018 period. This study aimed to analyze the pattern of influence of the NE policy as a determinant of graduation on student achievement at junior, senior, and vocational high schools. This study used data on …

Rasch Model For The Need Assessment Instrument Of Academic Guidance And Counseling Program In Junior High School, Muh Farozin, Budi Astuti, Sigit Sanyata, Dwitias Titi, Ela Nurmalasari, Natri Sutanti

Jurnal Penelitian dan Evaluasi Pendidikan

Developing an instrument for the need for academic guidance and counseling topics is a strategic step to support the needs assessment carried out by guidance and counseling teachers and counselors in schools. The development of this instrument had been carried out by Arfalah using exploratory factor analysis. This study aims to analyze the instrument using the Rasch model. The research procedure began with collecting data from two integrated online needs assessments of academic guidance and counseling instruments. The content validity test involved six experts, and the field test involved 111 students from three junior high schools in Yogyakarta. Data were …

The Quality Of Indonesian Teachers In The Digital Era: A Meta-Analysis, Eko Wahyunanto Prihono, Heri Retnawati, Fitria Lapele, Wisnu Budi Waluyo

Jurnal Penelitian dan Evaluasi Pendidikan

The objective of the study is to determine the influence of determinant factors on teacher quality in Indonesia in the digital era in kindergarten, elementary, junior high, and high school units. It was a quantitative research with a correlation meta-analysis approach. The data was secondary data collected from various research results in Indonesia on the scholar.google.com page. The results of the study were published from 2012 to 2022. Data analysis used JASP software to estimate aggregates, draw plot Forrest, and publication bias. The aggregates were estimated through correlation scores with fixed effect models. The results showed that the funnel plot …

The Effect Of Online Learning Quality On Vocational Students' Learning Achievement During The Covid-19 Pandemic, Feri Ferdian, Hijriyantomi Suyuthie

Jurnal Pendidikan Vokasi

This study aimed to analyze the effect of online learning quality on vocational students' learning achievement during the Covid-19 pandemic. This type of research uses a quantitative approach with ex post facto research, which aims to analyze exogenous variables (online learning quality) with endogenous variables (vocational students' learning achievement during the Covid-19 pandemic). The population of this study was 198 vocational students in the hotel management program Universitas Negeri Padang who took the front office operations two courses in the semester of January-June 2021. The sampling technique used in this study is total sampling. The number of successfully collected respondents …

Learning Independence And Teacher Teaching Skills: Does It Affect Learning Outcomes When Face-To-Face Learning Is Limited, Apri Nuryanto, Rizki Ramadani

Jurnal Pendidikan Vokasi

Limited face-to-face learning is a learning policy implemented by schools to prevent coronavirus transmission during the pandemic. Amidstface-to-face learning has become limited, so that it requires students to study more independently from home. Teachers are also required to maximize class time and are also required to be skilled in providing learning outside of student learning hours in class. This study aims to determine (1) the influence of student learning independence on learning outcomes, (2) the influence of teachers' teaching skills on learning outcomes, and (3) the influence of student learning independence and teacher teaching skills during limited face-to-face learning on …

Evaluation Of The Implementation Of English Medium Instruction, Avdhikka Rayni Qomariah, Elin Driana, Hari Setiadi

Jurnal Penelitian dan Evaluasi Pendidikan

This study aimed to evaluate the implementation of the English medium instruction (EMI) program at Harapan Ibu Islamic Elementary School in the academic year of 2020/2021 by applying the CIPP model with a descriptive qualitative method. Data were gathered through interviews with stakeholders, observation of the teaching-learning process using EMI, and documentation. The results of the evaluation are as follows: the suitability of the program context to the expectations of stakeholders is considered very good. As seen from the information on the use of English as the medium of instruction, stakeholders know and agree with the program's implementation; the program's …

The Evaluation Of The Programs Of Gender-Responsive School In Yogyakarta, Sudrajat Sudrajat, Saliman Saliman, Supardi Supardi

Jurnal Penelitian dan Evaluasi Pendidikan

The research aims to evaluate the implementation of the gender-responsive school program in Yogyakarta. It is a descriptive evaluation using the CIPP (Context, Input, Process, Product) model involving the principal, head of the gender-responsive school program, teachers, employees, and students as the subjects. Data were collected by (1) interviews with principals, teachers, heads of gender-responsive school programs, and students; (2) a study of documentation of various educational activities related to the program. Data were analyzed using a qualitative data analysis model by Miles and Huberman consisting of (1) data collection, (2) data reduction, (3) data display, and (4) data verification/conclusion. …

School Readiness Analysis To Implement An Inclusive Education Policy: A Case Study At Elementary School, Safrizal Safrizal, Resti Yulia, Desri Jumiarti

Jurnal Penelitian dan Evaluasi Pendidikan

This study aims to describe the readiness of elementary schools in one of the sub-districts in Padang City, which includes personnel/teachers, facilities, and infrastructure, and a developmental assessment format for children with unique/inclusive needs. This research uses a descriptive quantitative method. The research subject is the elementary school Principal, which was selected using a simple random sampling technique. The research instrument used was in the form of questions packaged in a Google Form using the Guttman scale. Data were analyzed using descriptive statistics. The results showed that all schools responded well to the call for inclusive education in schools. However, …

Developing "Pancasila Student Profile" Instrument For Self-Assessment, Yuliana Olga Siba Sabon, Edi Istiyono, Widihastuti Widihastuti

Jurnal Penelitian dan Evaluasi Pendidikan

Character assessment is critical for understanding student progress and determining policies and measures that must be taken to direct and strengthen positive character. This research falls under the category of R & D. The study aimed to create Pancasila character self-assessment questionnaires for students. The approach of generating effective instruments by Mardapi. As a result of the development, 20 items of valid and reliable instruments were obtained. The Aiken formula and exploratory factor analysis (EFA) are used to prove content validity and construct validity, while the alpha Cronbach formula is used to estimate reliability. The coefficient of reliability is 0.71, …

An Evaluation Of E-Learning Of Entrepreneurship Course: Learning Alternative During Covid-19 Pandemic For University Students, Ernawati Ernawati, Muharika Dewi, Linda Rosalina, Feri Ferdian, Fran Serano Andres

Jurnal Penelitian dan Evaluasi Pendidikan

This research was conducted to present recommendations on the implementation of e-learning courses Entrepreneurship during the Covid-19 pandemic. The evaluation refers to model Kirkpatrick's with Level 1: Satisfaction, Level 2: Learning, Level 3: Behavior, and Level 4: Impact. The research used a quantitative method with data analysis using percentage techniques. The sample was 307 students who had attended Entrepreneurship courses using e-learning. Data were collected using a questionnaire distributed via Google form. The results show that the evaluation level 1: student satisfaction in learning, on average of 67% and 33% of the other feeling dissatisfied and less able to accept …

Determinant Factors Of Mathematics Achievement In Online Learning During The Covid-19 Pandemic, Anwaril Hamidy, Kee-Fui Turner Lam

Jurnal Riset Pendidikan Matematika

Online learning has become more popular during the Covid-19 pandemic, including in mathematics. However, many educators have raised concerns whether there are critical factors determining the mathematics achievement during online learning. This study examines online learning readiness (OLR), math anxiety (MA), online platforms used in learning (Zoom Meeting and Google Classroom) and gender as determinants of mathematics achievement students in online learning. The participants in this study were 197 students of a private university in Samarinda, Indonesia. Online learning readiness and math anxiety were gathered by means of questionnaires. The questionnaires were deemed valid (> 0.500) and reliable (OLR = …

Development Of Trigonometry Module Based On Pbl That Oriented To High School Students' Concept Of Understanding, Ahmad Bazuri, Elly Arliani

Jurnal Riset Pendidikan Matematika

This study aims to produce a problem-based learning module on trigonometry oriented towards the ability to understand concepts for grade X high school students and to describe the quality of the validity, practicality, and effectiveness of the module. This is a research and development with the ADDIE model, which includes five stages: analysis, design, development, implementation, and evaluation. The implementation of product development was conducted at the State Senior High School 1 Magelang, involving 36 students from class X MIPA 2. This research resulted in a trigonometry module based on problem-based learning syntax. The module is declared valid with an …

Analysis Of Critical Thinking And Communication Skills In Geometric Transformation Problem Solving Using Transgeo Application, Malika Kautsar Ilmi, Mohammad Syaifuddin, Reni Dwi Susanti, Siti Khoiruli Ummah

Jurnal Riset Pendidikan Matematika

The research aims to analyze narratively critical thinking and communication skills using the Android-based TransGeo application on geometry transformation in junior high school. This study uses a qualitative with a descriptive method obtained from tests and interviews. The test contains contextual problems in the android application, while the interviews are based on student test answers. Then, test results are adjusted descriptively by presenting the achievement of each student to be categorized based on critical thinking and communication scoring. Next, one student was randomly selected from each category as the interview subject. The indicator of critical thinking skills is the most …

Meta-Analysis: The Effect Of Discovery Learning Models On Students' Mathematical Ability, Khairunnisa Khairunnisa, Dadang Juandi

Jurnal Riset Pendidikan Matematika

This research aims to determine the magnitude of the influence of the discovery learning model on students' mathematical abilities. These included problem-solving skills, critical thinking, understanding, and mathematical reasoning. This study employs a quantitative approach with a Meta-Analysis method. Data collected was from experimental research connected to the application of discovery learning models to the mathematical abilities of elementary, junior high school, and high school students in papers indexed from 2012 to 2021. From the search and study selection results, 48 articles were obtained. The findings found an annual increase in the number of publications, most of which were on …

An Exploration Of Ethnomathematics At Sewu Temple In Yogyakarta, Dina Sulistyowati, Rita Pramujiyanti Khotimah

Jurnal Riset Pendidikan Matematika

This study explores the elements of mathematics (geometry and arithmetic) in Sewu Temple. As the research is qualitatively discussed, ethnographic design is appropriately implemented with observation, interviews, and documentation for collecting data. The data analysis technique shares four steps; collecting, reducing, presenting, and drawing a conclusion"”the validity of the data using triangulation techniques. The results of this study indicate that there are mathematical elements in the shape of the building and the reliefs of Sewu Temple; flat shapes, spatial shapes, geometric transformations, and arithmetic sequences. The existing flat forms include; squares, rectangles, isosceles trapezoids, right trapezoids, circles, triangles, and octagons. …

Development Of Learning Tools Based On Realistic Mathematics Approach That Oriented To High School Students' Mathematical Generalization Ability, Silfia Hayuningrat, Raden Rosnawati

Jurnal Riset Pendidikan Matematika

Generalization ability need to be encouraged in learning mathematics, students with generalization abilities can expand and transfer knowledge to practical knowledge. This research aims to develop learning material based on realistic mathematisc approach that oriented to generalization ability. The learning materials'developed is lesson plans and student worksheets. This is research and development with an ADDIE model. The instruments used in this study were the evaluation sheets, response questionnaire for teachers and students and tests of mathematical generalization ability. The data analysis technique used was descriptive qualitative and quantitative. The design of the learning materials focuses on aspects of the mathematical …