659 research outputs found
Cost-effectiveness of management strategies for acute urethritis in the developing world.
OBJECTIVE: To recommend a cost-effective approach for the management of acute male urethritis in the developing world, based on the findings of a theoretical study. METHODS: A model was developed to assess the cost-effectiveness of three urethritis management strategies in a theoretical cohort of 1000 men with urethral syndrome. (1) All patients were treated with cefixime and doxycycline for gonococcal urethritis (GU) and nongonococcal urethritis (NGU), respectively, as recommended by WHO. (2) All patients were treated with doxycycline for NGU; treatment with cefixime was based on the result of direct microscopy of a urethral smear. (3) All patients were treated with cotrimoxazole or kanamycin for GU and doxycycline for NGU. Cefixime was kept for patients not responding to the first GU treatment. Strategy costs included consultations, laboratory diagnosis (where applicable) and drugs. The outcome was the rate of patients cured of urethritis. Cost-effectiveness was measured in terms of cost per cured urethritis. RESULTS: Strategy costs in our model depended largely on drug costs. The first strategy was confirmed as the most effective but also the most expensive approach. Cefixime should cost no more than US 1.5
Studie van macrowiergemeenschappen van de Spuikom van Oostende in functie van de Kaderrichtlijn water
Mercury concentrations in plaice, flounder and dab from Belgian continental shelf waters (1971-1990)
Results obtained during a survey of 20 years on plaice (Pleuronectes platessa) and 15 years on flounder (Platichthys flesus) and dab (Limanda limanda) are reported. With flounder, two periods could be distinguished. In 1975-1981, higher mercury concentrations (0.38 mg/kg on average) with rather large variations were noted. From 1982 on, concentrations fluctuated around the same mean value (0.23 mg/kg). A gradual decrease of mercury levels in plaice was observed during the twenty years' monitoring period. The mean concentration in 1990 (0.06 mg/kg) was only one third of that of 1971 (0.18 mg/kg). In contrast with flounder and plaice, mercury concentrations in dab remained practically at the same level (0.09-0.13 mg/kg)
Akkumulatie van koper, zink, chroom en lood in graten van bot = Accumulation des métaux lourds (cuivre, zinc, chrome et plomb) dans le squelette du flet
Evolutie van de gehalten aan zware metalen en PCB's in kabeljauw, bot, garnaal en mossel van de Belgische kustwateren
La teneur en métaux lourds dans les soles pêchées en Mer du Nord et en Mer d'Irlande : 10 années de recherches (1973-1982) = Het gehalte aan zware metalen in tong uit de Noordzee en de Ierse Zee: 10 jaar onderzoek (1973-1982)
Zware metalen in grijze garnaal (<i>Crangon crangon</i>) van de Belgische kustwateren (1972-1997)
Bio-material polylactic acid/poly(butylene adipate-co-terephthalate) blend developed for extrusion- based additive manufacturing
Bio-material polylactic acid and poly(butylene adipate-co-terephthalate) were blended to achieve increased ductility of the blend. Cloisite was added to improve the stiffness of the blend. The blends were made into filament suitable for extrusion-based additive manufacturing. Melt flow index of the filament and mechanical properties of the printed bars were tested. Preliminary results showed that the melt flow index increases significantly with cloisite and the modulus of polylactic acid/poly(butylene adipate-co-terephthalate) improved slightly. The notched impact strength of the blend increased with increasing content of cloisite, and it increased significantly after annealing, especially for blends without cloisite
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