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تعداد نتایج: 1871808 فیلتر نتایج به سال:
BACKGROUND Patients receiving combination antiretroviral therapy (cART) might continue treatment with a virologically failing regimen. We sought to identify annual change in CD4(+) T-cell count according to levels of viraemia in patients on cART. METHODS A total of 111,371 CD4(+) T-cell counts and viral load measurements in 8,227 patients were analysed. Annual change in CD4(+) T-cell numbers ...
1 Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic 2 Department of Military Hygiene, Faculty of Military Health Sciences, University of Defence, Trebesska 1575, 500 01 Hradec Kralove, Czech Republic 3 Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic...
BACKGROUND The objective of this study was to determine whether the addition of microsilver or nanosilver particles to an orthodontic primer affects shear bond strength (SBS) and bracket/adhesive failure. METHODS Bovine incisors were randomly divided into six groups with 16 specimens in each: In group 1 (control), brackets were bonded with Transbond™ XT primer. In the experimental groups, mic...
BACKGROUND An increasing demand for esthetic restorations has resulted in an increased use of all-ceramic restorations, such as zirconium. However, one of the challenges the orthodontist must be willing to face is how to increase bond strength between the brackets and various ceramic restorations.Bond strength can beaffected bybracket type, by the material that bracketsaremade of, and their bas...
The purpose of the present study was to examine the ability of nicotinamide to prevent the appearance of neurobehavioral symptoms induced by 3-acetyl pyridine (3-AP) in rats. Nicotinamide in doses of 5,50 and 500 mg/kg was injected immediately after administration of 65 mg/kg 3-AP, and neurobehavioral measurements were made at 6, 12, 24, 48 and 72 hours after injections. The effects of 500 mg/k...
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