classic anti reflux procedures on children with a history of posterior urethral valve does not usually yield good results and often ends up with ureteral obstruction and even permanent urinary diversion. from 1981 through 1988,21 boys with history of posterior urethral valve (puv) underwent evaluation for vesicoureteral (vu) reflux 17 boys had vu reflux. following valve ablation, reflux disappe...

Phenol and its derivatives are one of the most common contaminants in the aquatic ecosystem. Because of high toxicity of 2,4-DCP for aquatic life, resistance to biodegradation and potential for biological accumulation it is known as a priority contaminant in the aquatic environment. Advanced Oxidation Processes were successfully used for degradation of non-biodegradable contaminants that are re...

Stasis urin merupakan diagnosis simtomatif yang menggambarkan tertahannya di dalam saluran urinaria biasanya ditandai dengan membesarnya vesica (VU). Gejala klinis dan hasil pemeriksaan laboratoris sangat berperan penting menentukan diagnosanya. Penelitian ini bertujuan untuk mengevaluasi kejadian stasis pada kucing secara laboratoris. Materi digunakkan penelitian adalah 10 ekor menunjukkan gej...

Vu. V. LINNIK has discovered (see [I]) in 3941 a very powerful new method of elementary number theory, which he called the large sievel. In his original formulation the large sieve asserts that if we take any sequence S, consisting of Z positive integers sN, and if Y denotes the number of those primes’ pi?% for which all the elements of the sequence S, are contained in 5p(l -F) residue classes ...

Is the Café Scientifique a fashionable by-product of a comfortable age or an indicator of the changing relationship between science and society?

Current secure systems suffer because they neglect the importance of human factors in security. We address a fundamental weakness of knowledge-based authentication schemes, which is the human limitation to remember secure passwords. Our approach to improve the security of these systems relies on recognition-based, rather than recall-based authentication. We examine the requirements of a recogni...

Let U and V be complete separable metric spaces, Vu compact in V and G : U × V → IR a continuous function. For a large class of (usually non–constructive) proofs of uniqueness theorems ∧ u ∈ U, v1, v2 ∈ Vu ( G(u, v1) = inf v∈Vu G(u, v) = G(u, v2) → v1 = v2 ) one can extract an effective modulus of uniqueness Φ by logical analysis, i.e. ∧ u ∈ U, v1, v2 ∈ Vu, n ∈ IN ( 2 ∧ i=1 ( G(u, vi)− inf v∈Vu...

As Trump campaigned on a populist anti-establishment and anti-globalization platform, the financial markets naturally expected awful things to happen should he be elected. And they were right—for a short time, anyway. Between 8 p.m. and midnight ET on the day of the election, the S&P 500 Index future fell by 5.7% as the outcome of the election was revealed—only for the entire sell-off to be rev...

Department of Surgery, VU University Medical Center, Amsterdam, The Netherlands Department of Surgery, Netherlands Cancer InstituteAntoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands Department of Pulmonology, University Medical Center Groningen, Groningen, The Netherlands Department of Cardiothoracic Surgery, Academic Medical Center, Amsterdam, The Netherlands Department of Pulmonology...