This review discusses confinement, as well as the topological and critical phenomena, in the gauge theories which provide the condensation of magnetic monopoles. These theories include the 3D SU(N ) Georgi-Glashow model, the 4D [U(1)]N−1-invariant compact QED , and the [U(1)]N−1-invariant dual Abelian Higgs model. After a general introduction to the string models of confinement, an analytic des...

BACKGROUND Since motor learning is a key component for stroke recovery, enhancing motor skill learning is a crucial challenge for neurorehabilitation. Transcranial direct current stimulation (tDCS) is a promising approach for improving motor learning. The aim of this trial was to test the hypothesis that dual-tDCS applied bilaterally over the primary motor cortices (M1) improves online motor sk...

This paper proposes a new regularization term for optical flow related problems. The proposed regularizer properly handles rotation movements and it also produces good smoothness conditions on the flow field while preserving discontinuities. We also present a dual formulation of the new term that turns the minimization problem into a saddle-point problem that can be solved using a primal-dual a...

I am especially grateful to my dissertation committee for their invaluable guidance and assistance on this paper: Michal Matějka (Co-chair), Yuhchang Hwang (Co-chair), and Philip Reckers. I would like to thank Vanessa Makridis for her insightful comments. I would also like to thank the workshop participants at Arizona State University for their helpful remarks. 2 ABSTRACT This study provides ne...

in this paper, we study spacelike dual biharmonic curves. we characterize spacelike dual biharmonic curves in terms of their curvature and torsion in the lorentzian dual heisenberg group . we give necessary and sufficient conditions for spacelike dual biharmonic curves in the lorentzian dual heisenberg group . therefore, we prove that all spacelike dual biharmonic curves are spacelike dual heli...

OBJECTIVES Whether clopidogrel should be added to aspirin for stroke prevention remained controversial for the risk of hemorrhagic complications. This meta-analysis was aimed to assess the efficacy and safety of adding clopidogrel to aspirin on stroke prevention in high vascular risk patients, and to provide evidence for a suitable duration of dual antiplatelet therapy. METHODS We searched Pu...

In this paper, we introduce the concept of $g$-dual frames for Hilbert $C^{*}$-modules, and then the properties and stability results of $g$-dual frames  are given.  A characterization of $g$-dual frames, approximately dual frames and dual frames of a given frame is established. We also give some examples to show that the characterization of $g$-dual frames for Riesz bases in Hilbert spaces is ...

Capital Market Pressures and Earnings Management: Evidence from U.S. Dual-Class Firms Feng Chen In a dual-class share structure, one class of common stock typically has more votes per share than the other, but both classes have equal or similar cash flow rights per share. While this dual-class structure is likely to entrench management, it potentially reduces capital market pressures on manager...