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Articles 23791 - 23820 of 714454
Full-Text Articles in Entire DC Network
Collaborative Research: Bocp-Implementation: Us-China: Multi-Scale, Multi- Proxy, Integrative Investigation Of Functional Biodiversity On A Changing Proterozoic Planet, Carol Dehler
Funded Research Records
No abstract provided.
Machine Learning Research On Time Series Data, Zeyi Fan
Machine Learning Research On Time Series Data, Zeyi Fan
Lingnan Theses (MPhil & PhD)
Time series generated by complex systems, such as industrial IoT and user behavior systems, confront two core challenges: structured missingness (e.g., continuous or periodic gaps) that disrupt temporal dependencies, and the difficulty in effectively modeling dynamic long- and short-term temporal dependencies inherent in evolving patterns (e.g., user interests). Traditional approaches struggle to balance the preservation of local dependency continuity and the rational association of global long-range dependencies in structured missing scenarios, often incurring high computational costs. In temporal pattern modeling, the lack of adaptive mechanisms to fuse evolving long- and recent behavior trends (e.g., stable interest inertia vs. short-term preference …
The Sketches Of Infinite Data And Algorithms For Real-Time Data Insights, Vishnu S. Pendyala
The Sketches Of Infinite Data And Algorithms For Real-Time Data Insights, Vishnu S. Pendyala
Open Educational Resources
How are machine learning algorithms able to answer questions from any nook and corner of the World Wide Web? How are trending hashtags from the near infinite microblog posts, unique visitors and other distinct counts in the near infinite website traffic determined? How do blogging websites avoid recommending articles a user has previously read? In general, how can we answer complex queries about enormous data streams without storing them entirely, in real-time? The answer often lies in clever approximation algorithms and data "sketches" that capture essential properties using vastly reduced space. The relentless flow of data in modern systems indeed …
Development Of A New Ground-Based Instrumentation Technique For Low-Resolution Exoplanet Transmission Spectroscopy, Mary Anne Limbach, Luke M. Schmidt, Ryan J. Oelkers, Darren L. Depoy
Development Of A New Ground-Based Instrumentation Technique For Low-Resolution Exoplanet Transmission Spectroscopy, Mary Anne Limbach, Luke M. Schmidt, Ryan J. Oelkers, Darren L. Depoy
Physics & Astronomy Faculty Publications
We present a new instrumentation technique for high-precision, ground-based spectrophotometric measurements ideal for low-resolution (R ∼ 20–60) exoplanet transmission spectroscopy. This technique employs novel thin-film coating technology for wide-band, simultaneous multi-band imaging, enabling high-precision differential photometry through self-referencing and comparison stars. Theoretical calculations and on-sky results show that this method effectively reduces 96% of amplitude scintillation noise and other systematics that typically limit ground-based spectrophotometric precision for bright stars. On-sky results are demonstrated using the custom-built Exoplanet Transmission Spectroscopy Imager (ETSI), deployed at the McDonald Observatory 2.1 m telescope in 2022. For a V = 9.7 mag star, ETSI …
Screening And Variable Selection For Analyzing Binary Outcome With Rare Events And High-Dimensional Predictors, Mohammad Nahian Ferdous Abrar
Screening And Variable Selection For Analyzing Binary Outcome With Rare Events And High-Dimensional Predictors, Mohammad Nahian Ferdous Abrar
Electronic Theses and Dissertations Archive
Binary outcomes with rare events (event rate less than 5%) present significant analytical challenges, particularly in high-dimensional settings such as epigenome-wide association studies (EWAS) involving DNA methylation data. Traditional logistic regressions are often inadequate under these conditions, suffering from bias, high variance, and diminished power when the event rate is low and the number of predictors exceeds the sample size (p >> n). To address these limitations, we developed a series of novel methods that enhance sensitivity and accuracy in identifying biologically meaningful biomarkers while accounting for both event rarity and high dimensionality. We first introduce two innovative screening approaches. The …
Planning And Policy For Safer Roads With Autonomous Vehicles: Moral Decision Making Behavior In Dilemma-Inducing Situations, Fatemeh Nazari, Mohamadhossein Noruzoliaee
Planning And Policy For Safer Roads With Autonomous Vehicles: Moral Decision Making Behavior In Dilemma-Inducing Situations, Fatemeh Nazari, Mohamadhossein Noruzoliaee
Civil Engineering Faculty Publications
This study develops a Dynamic Bayesian Network (DBN) framework to examine how public confidence in autonomous vehicle (AV) safety and willingness-to-ride respond to policy interventions in crash-imminent pedestrian–passenger prioritization scenarios. Using stated preferences survey data from San Francisco (SF) and San Antonio (SA), the model integrates baseline attitudes, socio-demographic factors, and policy conditions to simulate both intra-slice and inter-slice dependencies. Results from empirical-mix simulations indicate that SF respondents, despite having higher baseline confidence and willingness-to-ride, exhibit greater sensitivity to policies prioritizing pedestrians, with significant declines across all scenarios. By contrast, SA respondents show comparatively stable and modestly positive shifts, particularly …
Efficient Decontamination Of Organophosphate-Based Pesticides And Nerve Agent Simulants Mediated By N-Containing Nucleophiles, Emmanuel Kingsley Darkwah, Puspa Aryal, Saidulu Todeti, Jared Kenik, Samuel Insall, V. Prakash Reddy, Chariklia Sotiriou-Leventis
Efficient Decontamination Of Organophosphate-Based Pesticides And Nerve Agent Simulants Mediated By N-Containing Nucleophiles, Emmanuel Kingsley Darkwah, Puspa Aryal, Saidulu Todeti, Jared Kenik, Samuel Insall, V. Prakash Reddy, Chariklia Sotiriou-Leventis
Chemistry Faculty Research & Creative Works
There is a growing interest in developing safer and more effective decontaminating agents for organophosphate-based pesticides and nerve agents. In this study, we present an effective method for the nonaqueous decontamination of these compounds using small-molecule-based decontaminating agents under ambient conditions. Our approach utilizes aryl and heteroaryl carboxaldehyde hydrazones and hydrazides to effectively hydrolyze nerve agent simulants into their nontoxic degradation products. The effectiveness of this method was evaluated using a range of nerve agent simulants, including dimethyl 4-nitrophenyl phosphate (DMNP), dimethyl methyl phosphonate (DMMP), and triphenyl phosphate (TPhP). In the presence of the heteroaryl hydrazone, the rate of hydrolysis …
Global Drivers And Local Management Of Groundwater Stress: A High-Resolution Economic Analysis Of Land, Water, And Food Systems, Iman Haqiqi, Thomas Hertel, Kavitha Srikanth
Global Drivers And Local Management Of Groundwater Stress: A High-Resolution Economic Analysis Of Land, Water, And Food Systems, Iman Haqiqi, Thomas Hertel, Kavitha Srikanth
Department of Agricultural Economics Faculty Publications
Groundwater stress, a critical challenge for global water security and food production, has intensified due to the interaction of global change drivers and rapidly evolving local conditions. This paper investigates the individual and combined impacts of water availability, heat, population growth, income dynamics, and technological advancements on global groundwater stress over a historical period from 1997 to 2017. Utilizing the gridded Simplified International Model of agricultural Prices, Land use, and the Environment (SIMPLE-G), the study attributes local changes in water and land use patterns to these key global drivers. Furthermore, it evaluates an alternative, counterfactual scenario in which sustainable management …
Evaluation Of Fano Resonance In Silver Nanotriangles And Complementary Triangular Apertures For Enhanced Refractive Index Sensing, Nabila Islam
Dissertations and Theses
This thesis presents a detailed investigation of plasmonic sensors based on silver (Ag) nanotriangles, focusing on the interaction of plasmonic mode with waveguide modes to achieve Fano resonance for enhanced refractive index sensitivity. For this purpose, Ag nanotriangles were chemically synthesized and were on indium tin oxide (ITO)-coated glass. The samples were illuminated with laser light of various wavelengths and polarization to excite surface plasmon in the nanotriangle. Observation and characterization of their plasmonic behavior was done experimentally using Photoemission Electron Microscopy (PEEM). Numerical simulations using the Finite Element Method (FEM) were performed that agreed with these experimental results and …
Use Of Ict In South African Schools And The Plight Of Marginalized Learners During The Covid-19 Pandemic, Chinegbonkpa Hope Nwakanma, Maryam Chinasa Adewunmi
Use Of Ict In South African Schools And The Plight Of Marginalized Learners During The Covid-19 Pandemic, Chinegbonkpa Hope Nwakanma, Maryam Chinasa Adewunmi
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan
Given that information and communication technology is still a luxury for poor students, especially in developing countries like South Africa. It is crucial to examine the extent of the inequalities and social marginalisation learners face due to lack of access to ICT, as well as the impact on their learning. This study, therefore, explores the use of ICT in public schools by synthesising existing literature on its effect on the teaching and learning of socially and economically marginalised learners. Using the qualitative research approach involving document analysis and literature review, this study reveals that lack of resources, skills and the …
Influence Of Self-Confidence, Practice Experience, Learning Outcomes Enterpreneur's Practices And Soul Towards Entrepreneurial Capability Cash Design Vocational Students, Wulidah Ning Tiasari, Tuwoso Tuwoso, Agus Hery Supadmi Irianti, Mingchang Wu
Influence Of Self-Confidence, Practice Experience, Learning Outcomes Enterpreneur's Practices And Soul Towards Entrepreneurial Capability Cash Design Vocational Students, Wulidah Ning Tiasari, Tuwoso Tuwoso, Agus Hery Supadmi Irianti, Mingchang Wu
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan
This research aims to find out whether there is a significant simultaneous influence of self-confidence, practical experience, practical learning outcomes, entrepreneurial spirit on the entrepreneurial abilities of Fashion Design Vocational School students in Malang City. In this study, the sample of respondents was 134 students using quantitative methods. The analysis technique uses descriptive and inferential with hypothesis testing using partial correlation and multiple regression analysis techniques with classic assumption tests, namely normality test, linearity test, multicollinearity test, autocorrelation test and heteroscedasticity test. The research is quantitative descriptive in nature. The results of the research show the influence of independent variables, …
Pengaruh Model Challenge Based Learning Terhadap Keterampilan Berpikir Kritis Dan Hasil Belajar Siswa Pada Materi Bencana Alam Kelas V Sd, Elfa Diyah Kusuma, M. Anas Thohir, Lilik Bintartik
Pengaruh Model Challenge Based Learning Terhadap Keterampilan Berpikir Kritis Dan Hasil Belajar Siswa Pada Materi Bencana Alam Kelas V Sd, Elfa Diyah Kusuma, M. Anas Thohir, Lilik Bintartik
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan
Salah satu kemampuan yang sangat penting untuk pembelajaran di era modern adalah pemikiran kritis. Tujuan penelitian ini adalah untuk mengevaluasi bagaimana model pembelajaran berbasis tantangan berdampak pada keterampilan berpikir kritis siswa dan hasil belajar mereka tentang materi bencana alam di kelas V SD. Eksperimen semu (Quasi Exprimental Design) digunakan dengan tipe pre-test dan post-test Grup Kontrol NonEquivalen. Penelitian ini melibatkan 44 siswa kelas V SD dari dua kelas yang sama. Dalam penelitian ini, seluruh siswa kelas V SD diambil sebagai sampel. Metode pengumpulan data dengan menggunakan tes pilihan ganda dan esai. Uji MANOVA digunakan untuk menganalisis data. Hasil uji statistik …
Penyamaan Persepsi Guru Dalam Pengembangan Mentoring Skills Berbasis Lms Untuk Pembimbingan Mahasiswa Ppl Ppg Prajabatan, Zihan Novita Sari, Herlina Ike Oktaviani, Paundra Wangsa Fajar Kusuma
Penyamaan Persepsi Guru Dalam Pengembangan Mentoring Skills Berbasis Lms Untuk Pembimbingan Mahasiswa Ppl Ppg Prajabatan, Zihan Novita Sari, Herlina Ike Oktaviani, Paundra Wangsa Fajar Kusuma
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan
Praktik Pengalaman Lapangan (PPL) dalam Pendidikan Profesi Guru (PPG) memiliki peran penting dalam membekali calon guru dengan keterampilan mengajar. Guru pamong memiliki peran penting dengan bertindak sebagai mentor yang membimbing mahasiswa PPL. Namun, terdapat perbedaan pemahaman di kalangan guru pamong terkait konsep mentoring yang menyebabkan ketidakkonsistenan dalam pembimbingan. Oleh karena itu, penelitian ini bertujuan untuk menjabarkan peran Learning Management System (LMS) dalam mendukung pembimbingan mahasiswa PPL PPG, mengidentifikasi tantangan dalam implementasinya, serta memahami persepsi guru pamong terhadap keterampilan mentoring. Penelitian ini menggunakan pendekatan mixed-method dengan desain deskriptif eksploratif. Data dikumpulkan melalui survei dengan angket, wawancara mendalam dengan guru pamong, serta …
Analysis Of Students’ Spatial Ability Using Geogebra In The Spatial Geometry Course, Nurma Izzati, Reo Al Farizi
Analysis Of Students’ Spatial Ability Using Geogebra In The Spatial Geometry Course, Nurma Izzati, Reo Al Farizi
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan
This study aims to analyze the spatial ability of students using GeoGebra in solving students' spatial ability problems in the spatial geometry course. The research method used is a descriptive qualitative method. The instrument used is a spatial ability test of spatial geometry which is arranged based on spatial ability indicators, namely visualization, spatial perception, mental rotation, spatial relation, and spatial orientation. The research subjects were all students of the Mathematics Department of the Faculty of Tarbiyah and Teacher Training (FITK) semester 3 classes A and B of the State Islamic University of Cyber Syekh Nurjati Cirebon (UIN SSC) totaling …
The Shorthorn: April 29, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: April 26, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: April 20, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: April 14, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: April 1, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: March 24, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: March 25, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: March 23, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: March 4, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: March 8, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: March 1, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: February 22, 1977
The Shorthorn: February 22, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: February 17, 1977
The Shorthorn: February 17, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: February 16, 1977
The Shorthorn: February 16, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: February 10, 1977
The Shorthorn: February 10, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.
The Shorthorn: February 2, 1977
The Shorthorn: February 2, 1977
The Shorthorn Newspaper Collection: 1970s
No abstract provided.