User profiles for Di Xu
Di XuAssociate Professor Verified email at uci.edu Cited by 7215 |
Performance gaps between online and face-to-face courses: Differences across types of students and academic subject areas
D Xu, SS Jaggars - The Journal of Higher Education, 2014 - Taylor & Francis
Using a dataset containing nearly 500,000 courses taken by over 40,000 community and
technical college students in Washington State, this study examines the performance gap …
technical college students in Washington State, this study examines the performance gap …
Processing thermogravimetric analysis data for isoconversional kinetic analysis of lignocellulosic biomass pyrolysis: Case study of corn stalk
Modeling of lignocellulosic biomass pyrolysis processes can be used to determine their key
operating and design parameters. This requires significant amount of information about …
operating and design parameters. This requires significant amount of information about …
The impact of online learning on students' course outcomes: Evidence from a large community and technical college system
D Xu, SS Jaggars - Economics of Education Review, 2013 - Elsevier
Using a large administrative dataset from a statewide system including 34 community and
technical colleges, the authors employed an instrumental variable technique to estimate the …
technical colleges, the authors employed an instrumental variable technique to estimate the …
The Promises and Limits of Online Higher Education: Understanding How Distance Education Affects Access, Cost, and Quality.
While the supply and demand for online higher education is rapidly expanding, questions
remain regarding its potential impact on increasing access, reducing costs, and improving …
remain regarding its potential impact on increasing access, reducing costs, and improving …
Understanding the determinants of online review helpfulness: A meta-analytic investigation
Online consumer reviews can help customers reduce uncertainty and risks faced in online
shopping. However, the studies examining the determinants of perceived review helpfulness …
shopping. However, the studies examining the determinants of perceived review helpfulness …
Meta-Analysis of APOE4 Allele and Outcome after Traumatic Brain Injury
W Zhou, D Xu, X Peng, Q Zhang, J Jia… - Journal of …, 2008 - liebertpub.com
There is conflicting evidence regarding a possible association between the apolipoprotein
E4 (APOE4) allele and the consequences of traumatic brain injury (TBI). Our aim was to carry …
E4 (APOE4) allele and the consequences of traumatic brain injury (TBI). Our aim was to carry …
How do online course design features influence student performance?
SS Jaggars, D Xu - Computers & Education, 2016 - Elsevier
Given the rapid growth in online coursework within higher education, it is important to
establish and validate quality standards for these courses. While many online learning quality …
establish and validate quality standards for these courses. While many online learning quality …
Retracted article: quantized Majorana conductance
H Zhang, CX Liu, S Gazibegovic, D Xu, JA Logan… - Nature, 2018 - nature.com
… dI/dV curve at high temperature by convolution of the derivative of the Fermi distribution
function with the dI/… Because we use the dI/dV curve at 20 mK as the zero-temperature data, our …
function with the dI/… Because we use the dI/dV curve at 20 mK as the zero-temperature data, our …
[HTML][HTML] Cu2O/CuO Bilayered Composite as a High-Efficiency Photocathode for Photoelectrochemical Hydrogen Evolution Reaction
Y Yang, D Xu, Q Wu, P Diao - Scientific reports, 2016 - nature.com
Solar powered hydrogen evolution reaction (HER) is one of the key reactions in solar-to-chemical
energy conversion. It is desirable to develop photocathodic materials that exhibit high …
energy conversion. It is desirable to develop photocathodic materials that exhibit high …
[HTML][HTML] Calcium-independent and 1, 25 (OH) 2D3-dependent regulation of the renin-angiotensin system in 1α-hydroxylase knockout mice
C Zhou, F Lu, K Cao, DI Xu, D Goltzman, D Miao - Kidney international, 2008 - Elsevier
To determine whether the cardiovascular effect of 1,25(OH) 2 D is dependent on calcium
and/or phosphorus, mice with targeted deletion of the 25(OH)D 1α-hydroxylase and their wild-…
and/or phosphorus, mice with targeted deletion of the 25(OH)D 1α-hydroxylase and their wild-…