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BACKGROUND Bilateral arm training (BAT) and constraint-induced therapy (CIT) have shown beneficial effects in improving motor control and function of the upper extremities (UE) for patients with stroke. Thus far, no study has directly investigated the relative effects of BAT versus CIT on brain reorganization. This study compared the effects of BAT with(More)
OBJECTIVE This study compared the effects of a distributed form of constraint-induced therapy with control intervention in motor recovery and brain reorganization after stroke. DESIGN A two-group randomized controlled trial with pretreatment and posttreatment measures was conducted. Thirteen patients with stroke were randomly assigned to the distributed(More)
We propose novel approaches and tests for estimating student preferences with data from school choice mechanisms, e.g., the Gale-Shapley Deferred Acceptance. Without requiring truth-telling to be the unique equilibrium, we show that the matching is (asymptotically) stable, or justified-envy-free, implying that every student is assigned to her favorite(More)
Mismatch negativity (MMN) is an optimal neurophysiological signal to assess the integrity of auditory sensory memory and involuntary attention switch. The generation of MMN is independent of overt behavioral requirements, concentration or motivation, and thus serves as a suitable tool to study the perceptual function in children with attention(More)
This paper studies the nonparametric identification and estimation of the structural parameters, including the per period utility functions, discount factors, and state transition laws, of general dynamic programming discrete choice (DPDC) models. I show an equivalence between the identification of general DPDC model and the identification of a linear GMM(More)
We estimate a structural model of a sponsored search auction model. To accommodate the " position paradox " , we relax the assumption of decreasing click volumes with position ranks, which is often assumed in the literature. Using data from " Website X " , one of the largest online marketplaces in China, we find that merchants of different qualities adopt(More)
The random-coefficient logit models of demand proposed by Berry, Levinsohn and Pakes (1995) are widely applied to solve important economic issues, such as merger analysis. On the other hand, estimation of these models involve nontrivial numerical optimization of the GMM criterion, which motivates the development of the more robust Mathematical Program with(More)
We evaluated the reliability of 8-hydroxy-2'-deoxyguanosine (8-OHdG), and determined its ability to predict functional outcomes in stroke survivors. The rehabilitation effect on 8-OHdG and functional outcomes were also assessed. Sixty-one stroke patients received a 4-week rehabilitation. Urinary 8-OHdG levels were determined by liquid chromatography-tandem(More)
This study shows an effective way to explore and visualize the structure-activity relationships (SARs) of flavonoids with antioxidant activity using structure-activity maps (SAMs). SAMs are graphical maps plotting molecular descriptors such as NAB or MSI against their biological activities. NAB (number of non-hydrogen atoms and bonds in a molecule) or MSI(More)
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