8 research outputs found
Scalar Representation and Conjugation of Set-Valued Functions
To a function with values in the power set of a pre-ordered, separated
locally convex space a family of scalarizations is given which completely
characterizes the original function. A concept of a Legendre-Fenchel conjugate
for set-valued functions is introduced and identified with the conjugates of
the scalarizations. Using this conjugate, weak and strong duality results are
proven.Comment: arXiv admin note: substantial text overlap with arXiv:1012.435
Esophageal perforation in a dog following an acute episode of gastric dilatation with 360o volvulus
Effects of preanesthetic administration of morphine on gastroesophageal reflux and regurgitation during anesthesia in dogs
Periodic administration of allopurinol is not effective for the prevention of canine leishmaniosis (Leishmania infantum) in the endemic areas
A total of 95 clinically healthy and seronegative for Leishmania
infantum dogs, residing an area highly endemic for canine leishmaniosis
(CL) and living an outdoor life-style, were split into positive and
negative groups, and then were randomly assigned to receive allopurinol
(n=51; 20 mg/kg once daily), or placebo (n=44) for I week per month,
from April to November. Forty per cent (38/95) of these dogs were not
reexamined and retested at the end of the trial for reasons unrelated to
CL. None of the remaining 57 dogs exhibited the symptomatic form of the
disease at the end of the 1-year follow-up period. Of the 15
allopurinol-treated dogs that were non-infected (negative PCR and tissue
smear microscopy) at the beginning of the trial, 6 (40% P=0.03) became
PCR-positive, of which 3 became also seropositive, at the end of the
observation period. In contrast, only 1 of 7 (14.3%) placebo-treated
non-infected dogs became PCR positive at the same time point. Of the 19
allopurinol-treated dogs that were infected (PCR-positive) at the
beginning of the trial, 18 (94.7%) remained PCR-positive and one
(5.3%) seroconverted, at the end of the observation period. Of the 16
initially infected and placebo-treated dogs, 14 (87.5%) remained PCR
positive, of which one (6.7%) also turned positive by tissue smear
microscopy. Therefore, it is concluded that the use of allopurinol, at
the daily dose of 20 mg/kg, for 1 week per month, during the period of
sandfly activity, does not prevent the infection of non-infected dogs by
L infantum, and, also, does not help in the elimination of the parasite
from dogs with asymptomatic infections. (c) 2005 Elsevier B.V. All
rights reserved