Parkinsonian syndromes can be classified into 2 major groups: Parkinson disease (PD)andatypicalparkinsoniandisorders. Commoncharacteristics includeakinesia, expressed as slowness and paucity of movement (eg, decreased arm swing or facial expression) and difficulty in initiating movement, and are associated with rigidity with or without resting tremor. Parkinsonian syndromes frequently occur in ...

With the concentration of poultry production and increase in operation size in several regions of the U.S., more manure is applied to agricultural land. This application of manure has resulted in more P being added than crops require, an accumulation in soil P, and increased potential for P loss in surface runoff. This situation has been exacerbated by manure management being N-based. Increased...

We analyze the role played by the gauge invariance for the existence of Dirac monopole. To this end, we consider the electrodynamics with massive photon and ask if the magnetic charge can be introduced there. We show that the derivation of the Dirac quantization condition based on the angular momentum algebra cannot be generalized to the case of massive electrodynamics. Possible implications of...

Weakly interacting massive particles (WIMPs) remain the strongest candidates for the dark matter in the Universe. If WIMPs are the dark matter, they will form galactic halos according to the hierarchical clustering observed in N-body simulations. Cold dark matter (CDM) simulations show that large dark matter structures such as galactic and cluster halos are formed by the merging of many smaller...

This paper explores the potential for audio and video services streamed to mobile handset from the perspective of consumer behaviour. The author argues that consumer choice rather than technology or supply side activities will determine the success of the services and that demand for mobile broadcasting services will come primarily from consumers who are currently using mobile audio and video s...

prognosis (M1c). Of course the statistics are not to blame for this, but performing a second trial in another part of the world may decrease such bias due to differences in clinical practice and therefore inclusion policies. Also, with more effective drugs becoming available in several tumor types, the effect of a single novel drug will be more difficult to evaluate when overall survival is the...

Prescribing anticoagulants to pregnant women can be difficult and stressful. Fortunately, low-molecular-weight heparins (LMWHs) and unfractionated heparin are quite safe and efficacious when properly selected, dosed, and monitored. Maternal and fetal concerns must be considered at all times, with a careful assessment of the risks and benefits of anticoagulant therapy in each patient. Further re...

Background: The mammalian oocyte has the unique feature of supporting fertilization and normal development while being able of reprogramming the nuclei of somatic cells towards pluripotency, and occasionally even totipotency. Whilst oocyte quality is known to decay with somatic ageing, it is not a given that different biological functions decay concurrently. In this study, we tested whether ooc...