Khamis Abu-Hasaballah

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OBJECTIVE To investigate the relationship between white matter abnormalities and impairment of gait and balance in older persons. METHODS Quantitative MRI was used to evaluate the brain tissue compartments of 28 older individuals separated into normal and impaired groups on the basis of mobility performance testing using the Short Physical Performance(More)
OBJECTIVE Cerebral cortical potentials can be evoked by stance perturbation, and there is speculation that they represent the activation of supraspinal centers in preparation for the control and coordination of motor movements that maintain balance. We sought to determine if these potentials differed in old people at risk of falls. METHODS Cortical(More)
Interactive voice response (IVR) technology is a robust method of data collection that has been underutilized in behavioral medicine and clinical pharmacotherapy research. While it is clear that there is an increasing interest in this technology, published research in the medical field has not described its implementation with sufficient detail to evaluate(More)
Alcohol use is believed to increase sexual risk behavior among people living with HIV/AIDS (PLWHA). As drinking and sexual risk acts often occur in the same social contexts, this association is difficult to confirm. In this study, electronic daily diaries were completed by 116 PLWHA over 5 weeks. This yielded a total of 1,464 records consisting of data(More)
The purpose of our study was to evaluate all contact pressures between the molded ankle-foot orthosis (MAFO) and the subject during activities of daily living. The MAFOs studied are used clinically to reduce plantar contact pressures associated with foot ulcers in adult neuropathic diabetic subjects, alleviating abnormal pressures by redistributing them to(More)
OBJECTIVE Emergency Departments (EDs) offer an opportunity to improve the care of patients with at-risk and dependent drinking by teaching staff to screen, perform brief intervention and refer to treatment (SBIRT). We describe here the implementation at 14 Academic EDs of a structured SBIRT curriculum to determine if this learning experience improves(More)
The ability of the perforant path/dentate granule cell synapse of the hippocampal formation to establish and maintain enhanced levels of synaptic transmission in response to tetanization (long-term potentiation, LTP) was investigated in freely moving rats at 15, 30, and 90 days of age. Measures of 1) the slope of the population excitatory postsynaptic(More)
BACKGROUND Interactive voice response technology (IVR) allows investigators to collect daily measures of drinking, medication adherence, mood, and other treatment-relevant variables that may change day to day during a clinical trial. Despite these advantages, no published studies have used IVR in alcohol pharmacotherapy trials. METHODS Subjects provided(More)
A pilot study was conducted to assess the feasibility of using, in a multiply disadvantaged population, an electronic daily diary to test hypotheses linking affective states to variability in psychosocial determinants of condom use. Twenty-one mostly non-Caucasian individuals reporting profound economic disadvantage, heavy alcohol use and HIV infection(More)
Widely accepted standards and safeguards for research participants now include systematic surveillance and recording of adverse events. In the absence of a uniform regulation or structure for such reporting, each institution must now establish suitable yet efficient procedures to accomplish this task. We report herein our single center experience with a(More)