438 hasil untuk "Lin Ding"
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Artikel Jurnal
Theoretical perspectives of quantitative physics education research
[This paper is part of the Focused Collection on Quantitative Methods in PER: A Critical Examination.] The notion of quantitative physics education research (PER) so far has been mostly limited to the mere use of statistical methods or use of computational tools for analyzing numerical data. Little…
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Artikel Jurnal
Improved Related-Cipher Attack on Salsa20 Stream Cipher
The Salsa20 stream cipher was designed by Bernstein in 2005 as a candidate for eSTREAM and Salsa20/12 was accepted in the eSTREAM software portfolio in 2008. In this paper, we present an improved related-cipher attack on Salsa20. If a secret key is used in Salsa20/12 and Salsa20/8 with 2 different…
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Artikel Jurnal
Seeking missing pieces in science concept assessments: Reevaluating the Brief Electricity and Magnetism Assessment through Rasch analysis
Discipline-based science concept assessments are powerful tools to measure learners’ disciplinary core ideas. Among many such assessments, the Brief Electricity and Magnetism Assessment (BEMA) has been broadly used to gauge student conceptions of key electricity and magnetism (E&M) topics in…
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Artikel Jurnal
Verification of causal influences of reasoning skills and epistemology on physics conceptual learning
This study seeks to test the causal influences of reasoning skills and epistemologies on student conceptual learning in physics. A causal model, integrating multiple variables that were investigated separately in the prior literature, is proposed and tested through path analysis. These variables…
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Artikel Jurnal Teks lengkap
Lamination, Borders, and Thalamic Projections of the Primary Visual Cortex in Human, Non-Human Primate, and Rodent Brains
The primary visual cortex (V1) is one of the most studied regions of the brain and is characterized by its specialized and laminated layer 4 in human and non-human primates. However, studies aiming to harmonize the definition of the cortical layers and borders of V1 across rodents and primates are…
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Artikel Jurnal
Thermal cut-off, not frequency throttling: Duty-cycle scheduling and a dataset-integrity audit for on-farm edge disease detection in durian
Vision-based disease detection is increasingly deployed on low-cost edge hardware in agriculture, yet accuracy reported on curated datasets can diverge sharply from field behaviour, and the thermal behaviour of the host device is rarely characterised at all. This paper reports the deployment of a…
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Artikel Jurnal
Detection of Insulin-Like Growth Factor 1 Based on an Electrochemical Impedance Spectroscopy Sensor
This work presents the fabrication of a novel label-free electrochemical sensor towards the determination of insulin-like growth factor 1 (IGF-1) by immobilizing IGF-1 monoclonal antibodies using multiwalled carbon nanotubes (MWCNTs) and an ionic liquid (IL). It was found that the increased…
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Artikel Jurnal
Large-scale survey of Chinese precollege students’ epistemological beliefs about physics: A progression or a regression?
This paper reports a cross-grade comparative study of Chinese precollege students’ epistemological beliefs about physics by using the Colorado Learning Attitudes Survey about Sciences (CLASS). Our students of interest are middle and high schoolers taking traditional lecture-based physics as a…
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Artikel Jurnal
Making of epistemologically sophisticated physics teachers: A cross-sequential study of epistemological progression from preservice to in-service teachers
Previous literature on learners’ epistemological beliefs about physics has almost exclusively focused on analysis of university classroom instruction and its effects on students’ views. However, little is known about other populations or factors other than classroom instruction on learners’…
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Artikel Jurnal
Multiple disadvantages: class, social capital, and well-being of ethnic minority groups in the UK during the COVID-19 pandemic
IntroductionThe COVID-19 pandemic has caused untold damage to the socio-economic lives of people all over the world. Research has also demonstrated great inequality in the pandemic experience. In the UK as in many other countries, people from ethnic minority backgrounds and in working-class…
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Artikel Jurnal
Approaches to data analysis of multiple-choice questions
This paper introduces five commonly used approaches to analyzing multiple-choice test data. They are classical test theory, factor analysis, cluster analysis, item response theory, and model analysis. Brief descriptions of the goals and algorithms of these approaches are provided, together with…
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Artikel Jurnal
Sequential and simultaneous synthesis problem solving: A comparison of students’ gaze transitions
This study examines students’ visual behaviors when they tackle two types of synthesis problems, sequential and simultaneous problems. Sequential synthesis tasks can be solved by applying pertinent concepts consecutively, whereas simultaneous synthesis tasks require concurrent application of…
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Artikel Jurnal
Epistemic framing analysis of secondary students during instruction on quantum physics
[This paper is part of the Focused Collection in Investigating and Improving Quantum Education Research.] Conceptual approaches to contemporary physics topics pose many learning challenges. One factor influencing knowledge integration is a student’s epistemic framing. Epistemic frames provide a…
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Artikel Jurnal
Hedgehog Signaling Links Chronic Inflammation to Gastric Cancer Precursor LesionsSummary
Since its initial discovery in Drosophila, Hedgehog (HH) signaling has long been associated with foregut development. The mammalian genome expresses 3 HH ligands, with sonic hedgehog (SHH) levels highest in the mucosa of the embryonic foregut. More recently, interest in the pathway has shifted to…
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Artikel Jurnal
Exploring Turkish K-12 pre-service and in-service teachers’ STEM self-efficacy: A systematic review
Teachers' self-efficacy in teaching STEM subjects is a crucial factor influencing the overall effectiveness of STEM education. Teachers have a major role in fostering students' interest and engagement in STEM disciplines. To address this importance, a systematic review of STEM self-efficacy with…
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Artikel Jurnal
Uncovering the hidden meaning of cross-curriculum comparison results on the Force Concept Inventory
In a recent study, Caballero and colleagues conducted a large-scale evaluation using the Force Concept Inventory (FCI) to compare student learning outcomes between two introductory physics curricula: the Matter and Interactions (M&I) mechanics course and a pedagogically-reformed-traditional-content…
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Artikel Jurnal
Afferent Projections to Area Prostriata of the Mouse
Area prostriata plays important roles in fast detection and analysis of peripheral visual information. It remains unclear whether the prostriata directly receives and integrates information from other modalities. To gain insight into this issue, we investigated brain-wide afferent projections to…
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Artikel Jurnal Teks lengkap
A Fuzzy-Logic-Based Covariance Localization Method in Data Assimilation
In ensemble data assimilation systems, the impracticalities of full sampling and systematic error often lead to spurious correlations between two variables with low actual correlations. To solve these problems, researchers have previously proposed a covariance localization (CL) method, which mainly…