Sharon Wang

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Overselective stimulus control was assessed in 29 students at residential schools for individuals with developmental disabilities. Overselectivity testing included three different delayed identity matching-to-sample tasks. Sample stimuli for the Form/Color Test were nine possible combinations of three colors and three forms. On each trial, the S+ stimulus(More)
In this paper, we consider the weakened Hilbert's 16th problem for symmetric planar perturbed polynomial Hamiltonian systems. In particular, a perturbed Hamiltonian polynomial vector field of degree 9 is studied, and an example of Z 10-equivariant planar perturbed Hamiltonian systems is constructed. With maximal number of closed orbits, it gives rise to(More)
The tumor suppressors Pten and p53 are frequently lost in breast cancer, yet the consequences of their combined inactivation are poorly understood. Here, we show that mammary-specific deletion of Pten via WAP-Cre, which targets alveolar progenitors, induced tumors with shortened latency compared to those induced by MMTV-Cre, which targets basal/luminal(More)
OBJECTIVE In Parkinson's disease, chronic striatal dopamine depletion results in over-activity and under-activity of the indirect and direct striatal output pathways respectively. In this study, we investigated changes in the function of glutamatergic cortico-striatal synapses that contribute to abnormalities in striatal efferents. METHODS Whole-cell(More)
A delayed matching-to-sample task with multiple sample stimuli was used to evaluate stimulus overselectivity in 70 individuals attending residential special-education schools. A Mental Age Equivalent score (MAE) was obtained for each student using the Peabody Picture Vocabulary Test. Twenty-one participants failed to complete matching-to-sample pretests(More)
This article discusses the effects of power-supply noise interference on PLL-based clock generators, and describes several measurement techniques for evaluating the resulting deterministic jitter (DJ). Derived relationships show how frequency-domain spur measurements can be used to evaluate timing-jitter behavior. Laboratory bench-test results are used to(More)
Deterministic and stochastic nonlinear partial differential equations (PDEs) have wide applications in social and natural science, and has motivated extensive studies of the related mathematical theories, which exhibits challenging problems sitting at the interface among areas such as probability , analysis, and dynamic systems. With this background, my(More)
Triple-negative breast cancer (TNBC), an aggressive disease comprising several subtypes including basal-like and claudin-low, involves frequent deletions or point mutations in TP53, as well as loss of PTEN. We previously showed that combined deletion of both tumor suppressors in the mouse mammary epithelium invariably induced claudin-low-like TNBC. The(More)
Although routinely done, there has been no evaluation of the utility of performing routine cerebrospinal fluid (CSF) examination in patients with active coccidioidomycosis and high complement fixation (IgG) antibody titers or other risk factors for disseminated infection. In our review 100% of patients diagnosed with coccidioidal meningitis had at least one(More)