نتایج جستجو برای: 120
تعداد نتایج: 74050 فیلتر نتایج به سال:
Comparative Study of Coumarin-120 (C-120) and Stilbine-3 (STB-3) Laser Dyes Doped in Sol-Gel Glasses
In 1967 the first work in solid state dye laser was performed by doping rhodamine dyes Polymethylmethacrylate (PMMA) materials. Since then some materials like various types of polymers, co-polymers, poly composite glasses have been used as host matrices for different dyes. Polymers suffer from limited mechanical and thermal stability. Hence can be alternative hosts. However, because high proces...
BACKGROUND The change of malaria case-management policy in Kenya to recommend universal parasitological diagnosis and targeted treatment with artemether-lumefantrine (AL) is supported with activities aiming by 2013 at universal coverage and adherence to the recommendations. We evaluated changes in health systems and case-management indicators between the baseline survey undertaken before implem...
Milliken-Taylor systems are some of the most general infinitary configurations that are known to be partition regular. These are sets of the form MT (〈ai〉i=1, 〈xn〉n=1) = { ∑m i=1 ai ∑ t∈Fi xt : F1, F2, . . . , Fm are increasing finite nonempty subsets of N}, where a1, a2, . . . , am ∈ Z with am > 0 and 〈xn〉n=1 is a sequence in N. That is, if p(y1, y2, . . . , ym) = ∑m i=1 aiyi is a given linear...
T he electrocardiogram shown in Figure 1 was read by the computer as arm-lead reversal. Th e computer reading went on to say that no further analysis would be attempted. Th is clearly is a programming mistake because the precordial leads make the diagnosis. Although we would estimate that 95% of electrocardiograms with negative P, QRS, and T waves in lead I are due to armlead reversal, a small ...
The oral adsorbent AST-120 has the potential to delay dialysis initiation and improve survival of patients on dialysis. We evaluated the effect of AST-120 on dialysis initiation and its potential to improve survival in patients with chronic kidney disease. The present retrospective pair-matched study included 560 patients, grouped according to whether or not they received AST-120 before dialysi...
COORDINATION OF TAXATION AND INNOVA TION FOR THE PROTECTION OF THE INTERNATIONAL ENVIRONMENT by SLIM
Two regulators face an international environmental problem because of the transfrontier polluting activity of their domestic firm. These firms can adopt a new and less polluting production technology by incurring an actualized investment cost. When the cost of immediate adoption of the cleaner technology is relatively high and the environmental taxation is well chosen, firms will adopt it at fi...
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