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• 1995-1999  (8)
• 1
Electronic Resource
Springer
European journal of pediatrics 154 (1995), S. 475-476
ISSN: 1432-1076
Keywords: Key words Polymyalgia ; Streptococcus
Source: Springer Online Journal Archives 1860-2000
Topics: Medicine
Notes: Abstract Two patients with acute post-streptococcal polymyalgia are described with a review of the seven cases previously reported cases. The common features are sudden onset of muscular pain with fever usually after an acute upper respiratory tract infection. Antistreptolysin O titre and inflammatory indexes are increased and muscle enzymes are normal. Conclusion Acute post-streptococcal polymyalgia should be considered as a possible diagnosis in every child complaining acute polymyalgia.
Type of Medium: Electronic Resource
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• 2
Electronic Resource
Springer
European journal of pediatrics 154 (1995), S. 475-476
ISSN: 1432-1076
Keywords: Polymyalgia ; Streptococcus
Source: Springer Online Journal Archives 1860-2000
Topics: Medicine
Notes: Abstract Two patients with acute post-streptococcal polymyalgia are described with a review of the seven cases previously reported cases. The common features are sudden onset of muscular pain with fever usually after an acute upper respiratory tract infection. Antistreptolysin O titre and inflammatory indexes are increased and muscle enzymes are normal Conclusion Acute post-streptococcal polymyalgia should be considered as a possible diagnosis in every child complaining acute polymyalgia.
Type of Medium: Electronic Resource
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• 3
Electronic Resource
Springer
ISSN: 1588-2780
Source: Springer Online Journal Archives 1860-2000
Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
Notes: Abstract A survey is given of the main activities of the Belgoprocess Company, with special emphasis on safety precautions. The routine sampling program for internal contamination consists of urinary and faecal sampling, among others. Faecal samples sometimes reveal low contamination levels. This contamination can be considered as low-level, frequent, and intermittent. No distinct correlation is found with another control technique. A survey is given about uncertainties that might hamper a representative sampling and/or a correct interpretation of the obtained data. Reference is made to the dosimetric models regarding complexity and uncertainties.
Type of Medium: Electronic Resource
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• 4
Electronic Resource
Copenhagen : Munksgaard International Publishers
Allergy 54 (1999), S. 0
ISSN: 1398-9995
Source: Blackwell Publishing Journal Backfiles 1879-2005
Topics: Medicine
Type of Medium: Electronic Resource
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• 5
Electronic Resource
Springer
Psychopharmacology 134 (1997), S. 258-265
ISSN: 1432-2072
Keywords: Key words Aggression ; Interindividual variability ; Chlordiazepoxide ; Benzodiazepines ; Mice
Source: Springer Online Journal Archives 1860-2000
Topics: Medicine
Notes: Abstract The present study examined the influence of prior social experience on the effects of chlordiazepoxide (CDP; 5.0, 10.0 and 20.0 mg/kg) on intrasexual aggression in male mice. Prior to drug testing, animals were either individually housed or screened in dyadic encounters in a neutral cage. This novel method yielded four experimental groups comprising animals with different social experiences and different aggressive/defensive characteristics: 1) individually-housed males (I): 2) aggressive males (A); 3) counter-attacking males (C), which actively responded to but did not initiate attack; and 4) defeated males (D). Twenty-four hours after screening, animals were treated with CDP and subjected to a resident-intruder test with untreated intruders. Results indicated that the lowest dose of CDP (5 mg/kg) increased aggressive behaviour but only in A males. At higher doses (10–20 mg/kg), CDP reduced attacks towards intruders in A, C and I, but not D, males. In A and C males, the antiaggressive action of CDP was associated with a prosocial effect (increased social investigation), whereas in I males, reduced aggression was associated with an increase in fear-related behaviours. As these differential effects of CDP on intermale aggression cannot be fully explained by differences in behavioural baselines, present data highlight the importance of experiential background as a powerful variable in determining behavioural responses to benzodiazepines. Present findings therefore suggest that an understanding of drug effects on social behaviour demands consideration of biological variability in phenotype.
Type of Medium: Electronic Resource
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• 6
Electronic Resource
Springer
European journal of applied physiology 79 (1999), S. 336-340
ISSN: 1439-6327
Keywords: Key words Aging ; Catecholamines Cortisol-Lymphocyte subsets ; Strength training
Source: Springer Online Journal Archives 1860-2000
Topics: Medicine
Notes: Abstract The effects of a short-term strength training programme on resting lymphocyte subsets and stress hormone concentrations were analysed in 32 elderly sedentary subjects. Out of these 32 subjects, 8 women and 8 men [mean age 70.1 (SEM 1.0) years] were randomly assigned to a 8-week strength training programme which consisted of three sets of eight repetitions at 80% of one repetition maximum, for leg press, bilateral leg extension and seated chest press, 3 days a week. The remaining 8 women and 8 men [mean age 70.5 (SEM 0.9) years ] served as controls. Absolute counts of lymphocyte subsets (CD20+, CD3+, CD3+CD4+, CD3+CD8+, CD3−CD56+CD16+) were measured with a new technique combining fluorescent microspheres and flow cytometry. In the trained subjects, substantial increases in strength took place in one repetition maximum during the 8-week training period for leg press [from means of 20.7 (SEM 1.0) to 23.6 (SEM 1.0) N · kg−1 LBM (lean body mass)], chest press [from means of 5.4 (SEM 0.3) to 6.2 (SEM 0.3) N · kg−1 LBM] and bilateral leg extension [from means of 6.3 (SEM 0.2) to 7.4 (SEM 0.3) N · kg−1 LBM] movements. Baseline cortisol concentration (P 〈 0.01), CD20+ cell count (P 〈 0.05), CD3+ cell count (P 〈 0.05), and CD4+ cell count (P 〈 0.01) decreased in both groups secondary to circannual variations between winter and summer. No significant effect of strength training on resting adrenaline, noradrenaline and cortisol concentrations or distributions of lymphocyte subsets at rest was observed. The main finding of this study was to demonstrate that 8-week is too short a duration for a strength training programme to modify counts of lymphocyte subsets at rest in elderly sedentary adults.
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• 7
Electronic Resource
Springer
Cellular and molecular neurobiology 19 (1999), S. 775-784
ISSN: 1573-6830
Keywords: sexual differentiation ; 5-HT1A receptors ; 5-HT2A receptors ; ontogeny ; amygdala ; hypothalamus
Source: Springer Online Journal Archives 1860-2000
Topics: Biology
Notes: Abstract 1.Rat hypothalamic 5-hydroxytryptamine (5-HT) and 5-hydroxyindole acetic acid (5-HIAA) concentrations are transiently sexually differentiated in the second week postpartum (pp), with higher levels in the female. In this report we investigate the possibility that 5-HT receptors may also exhibit sexual dimorphism in the neonatal period. 2.5-HT1A and 5-HT2A receptors were quantitated by radioligand binding of [3H]ketanserin and [3H]8-OH DPAT, respectively, in hypothalamus and amygdala from male and female rats at days 8–16 pp. 3.There was no sexual dimorphism or change in the density of 5-HT2A binding in hypothalamus or amygdala over days 8–16 pp. There was also no sexual dimorphism of 5-HT1A receptors. 4.There was an increase in 5-HT1A receptor density in both the hypothalamus and the amygdala. In the hypothalamus, but not the amygdala, this increase was interrupted on day 14 by a decrease in 5-HT1A receptors, which we suggest may be of physiological significance in modifying the eventual pattern of adult agonistic activity. 5.The results suggest that the sexual dimorphism in 5-HT turnover is predominantly presynaptic, relating to altered synthesis and/or release, and is not of sufficient magnitude or duration to produce adaptive responses in postsynaptic 5-HT1A or 5-HT2A receptors.
Type of Medium: Electronic Resource
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• 8
Electronic Resource
Springer
Journal of statistical physics 86 (1997), S. 213-231
ISSN: 1572-9613
Keywords: Absorbed Brownian motion ; quasistationary distributions ; conditioned Brownian motion with drift
Source: Springer Online Journal Archives 1860-2000
Topics: Physics
Notes: Abstract We study one-dimensional Brownian motion with constant drift toward the origin and initial distribution concentrated in the strictly positive real line. We say that at the first time the process hits the origin, it is absorbed. We study the asymptotic behavior, ast→∞, ofm t , the conditional distribution at time zero of the process conditioned on survival up to timet and on the process having a fixed value at timet. We find that there is a phase transition in the decay rate of the initial condition. For fast decay rate (subcritical case)m t is localized, in the critical casem t is located around $$\sqrt t$$ , and for slow rates (supercritical case)m t is located aroundt. The critical rate is given by the decay of the minimal quasistationary distribution of this process. We also study in each case the asymptotic distribution of the process, scaled by $$\sqrt t$$ , conditioned as before. We prove that in the subcritical case this distribution is a Brownian excursion. In the critical case it is a Brownian bridge attaining 0 for the first time at time 1, with some initial distribution. In the supercritical case, after centering around the expected value—which is of the order oft—we show that this process converges to a Brownian bridge arriving at 0 at time 1 and with a Gaussian initial distribution.
Type of Medium: Electronic Resource
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