Parkinson disease (PD) is a degenerative neurological disorder that affects 0.5- 1% of old people in western countries. It primarily affects mobility function, and associated with increasing disability over time. People with PD express bradykinesia, rigidity, tremor, progressive postural instability and muscle weakness as symptoms of PD. Various exercise programs, including resistance or aerobi...

Agricultural pesticides (i.e., insecticides, herbicides, and fungicides) represent a threat to drinking water quality and aquatic life within agricultural streams. Many agricultural streams serve as source waters for urban drinking water supplies within the Midwestern United States. Transport of pesticides from upstream agricultural streams to downstream drinking water supplies can result in an...

OBJECTIVES To estimate cost and outcomes of the Arthritis Foundation aquatic exercise classes from the societal perspective. DESIGN Randomized trial of 20-week aquatic classes. Cost per quality-adjusted life year (QALY) gained was estimated using trial data. Sample size was based on 80% power to reject the null hypothesis that the cost/QALY gained would not exceed $50,000. SUBJECTS AND METH...

Human-derived pharmaceuticals have been identified entering surface waters in the United States through wastewater effluent. While there is ample literature about what each compound alone does to aquatic life, little is known about the effects aquatic life may experience from the exposure to many different pharmaceuticals present in the environment. More specifically, are the combination of pha...

Current pesticide risk assessment does not specifically consider amphibians. Amphibians in the aquatic environment (aquatic life stages or postmetamorphic aquatic amphibians) and terrestrial living juvenile or adult amphibians are assumed to be covered by the risk assessment for aquatic invertebrates and fish, or mammals and birds, respectively. This procedure has been evaluated as being suffic...

There are more than one million microbial cells in every drop of seawater, and their collective metabolisms not only recycle nutrients that can then be used by larger organisms but also catalyze key chemical transformations that maintain Earth's habitability. Understanding how these microbes interact with each other and with multicellular hosts is critical to reliably quantify any functional as...

Transitions to and from aquatic life involve transformations in sensory systems. The Ross seal, Ommatophoca rossii, offers the chance to investigate the cranio-sensory anatomy in the most aquatic of all seals. The use of non-invasive computed tomography on specimens of this rare animal reveals, relative to other species of phocids, a reduction in the diameters of the semicircular canals and the...