Evidence for Solar Influences on Nuclear Decay Rates

Recent reports of periodic fluctuations in nuclear decay data of certain isotopes have led to the suggestion that nuclear decay rates are being influenced by the Sun, perhaps via neutrinos. Here we present evidence for the existence of an additional periodicity that appears to be related to the Rieger periodicity well known in solar physics.Comment: Presented at the Fifth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 28-July 2, 201

The Coevolution of Network Structure and Perceived Ease of Use

Perceived Ease of Use (PEoU) is one of the most central constructs in IS research. However, it has been examined only from an individual perspective. This article conceptualizes PEoU as a network construct. Results indicate three things. Firstly, the higher a person\u27s PEoU, the more likely she or he is sought for advice. Secondly, there is a greater likelihood that a person seeks out another person for advice if the other person also seeks out the first person for advice. Thirdly, a person\u27s PEoU will become similar to that of other persons\u27 she or he seeks out for advice

Optimal Hemodialysis Prescription: Do Children Need More Than a Urea Dialysis Dose?

When prescribing hemodialysis in children, the clinician should first establish an adequate regimen, before seeking to optimize the treatment (Fischbach et al. 2005). A complete dialysis dose should consist of a urea dialysis dose and a determined convective volume. Intensified and more frequent dialysis regimens should not be considered exclusively as rescue therapy. Interestingly, a recent single-center study demonstrated that frequent on-line HDF provides an optimal dialysis prescription, both in terms of blood pressure control (and therefore avoidance of left ventricular hypertrophy), and catch-up growth, that is, no malnutrition or cachexia and less resistance to growth hormone. Nevertheless, this one-center experience would benefit from a prospective randomized study