i Acknowledgements iii List of Papers v

We present a preliminary but broad assessment of the ecloud build-up for the various proposed upgrades of the LHC and its injectors. The study pertains only to the ecloud in bending dipole magnets, and does not shed any light on the effects of the electrons on the beam. We focus on the ecloud heat load, although we have computed many other quantities of interest. The basic variable used to clas...

The exogenous introduction of a molecular species mixture of bovine cortex phosphatidylserine (BC-PS) has been claimed to improve memory function in subjects suffering from age-associated memory impairment and dementia. However, it has been also reported that oral administration of another molecular species mixture of transphosphatidylated-soybean phosphatidylserine (T-Soy-PS) showed a little e...

The stochastic variational method is used in conjunction with stabilization ideas to compute the low energy phase shifts and scattering lengths for positronium-atom scattering. Results are obtained for the Ps-H, Ps- Li+, Ps-He, and Ps-Ps systems. The Ps-H scattering lengths are probably accurate to better than 5% and are the most accurate so far computed. The results for Ps- Li+ and Ps-Ps scatt...

Cells of the cyanobacterium Synechococcus 6301 were grown under illumination whose spectral composition favoured absorption either by the phycobilisome (PBS) light-harvesting antenna of photosystem II (PS II) or by the chlorophyll (Chi) a light-harvesting antenna of photosystem I (PS I). Cells grown under PS I-light developed relatively high PS II/PS I and PBS/Chl ratios. Cells grown under PS I...

BACKGROUND Platelet membrane phosphatidylserine (PS) is considered to be essential for hemostasis and thrombosis, but the in vivo topography of platelet PS has not been characterized. We hypothesized that platelet PS exposure would be identified on adherent platelets at the site of vascular injury and that blockade of PS would impede hemostasis and thrombosis. OBJECTIVE To localize and estima...

Although urinary tract infection (UTI) may appear straightforward, it can be a diagnostic challenge to pediatricians, nurse practitioners, and pediatric urologists. While there has been significant progress with regard to our understanding of the pathogenesis and host factors related to a UTI, the diagnosis remains complicated by nonspecific symptoms and the difficulty in obtaining an uncontami...

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Biofeedback treatment uses electronic or mechanical instruments to relay visual and/or auditory evidence to assist a person in gaining control over a physiologic process or function. In pediatric urology patients, biofeedback treatment is used to promote retraining of pelvic muscles. Figure 1 depicts the pathophysiology of dysfunctional voiding. In the figure, increased pelvic floor tension or ...