HIV-positive patients are at increased risk of developing chronic kidney disease. Although guidelines recommend regular monitoring of renal function in individuals living with HIV, the optimal frequency remains to be defined. In this review, we discuss the renal syndromes that may be identified at an earlier stage via routine assessment of kidney function, and provide guidance in terms of the f...

Experimental studies were conducted into the use of nanosecond scale voltage pulses in an inert gas for thermionic power conversion. These studies show that practical materials for the electrodes can provide a positive work function difference when operating in an inert gas environment. Using these materials it has been shown that significant power densities can be achieved. This method of ther...

We prove that the first-order theory of any function field K of characteristic p > 2 is undecidable. When K is a function field in one variable whose constant field is algebraic over a finite field, we can also prove undecidability in characteristic 2.

In this paper, an attempt has been made to construct a shape preserving rational bi-cubic interpolant (cubic/quadratic) with twelve free parameters to depict a more pleasant and smooth display of positive surface through positive data. Simple data dependent constraints are derived for four free parameters to preserve the positivity of data while the remaining eight are left free for designer’s ...

In the vein of Christol, Kamae, Mendès France and Rauzy, we consider the analogue of a problem of Mahler for rational functions in positive characteristic. To solve this question, we prove an extension of Cobham’s theorem for quasi-automatic functions and use the recent generalization of Christol’s theorem obtained by Kedlaya.  2008 Elsevier Inc. All rights reserved.