نتایج جستجو برای: counterfeit
تعداد نتایج: 1306 فیلتر نتایج به سال:
Drug formulation, an integral step in the regulated pharmaceutical industry, involves the careful blending and processing of precisely specified and measured components to create a final product that can be administered to deliver the required clinical dose. The production of counterfeit drugs is a major challenge to the industry and has the potential to endanger health, threaten reputation and...
There is an urgent need for accurate and inexpensive handheld instruments for the evaluation of medicine quality in the field. A blinded evaluation of the diagnostic accuracy of the Counterfeit Detection Device 3 (CD-3), developed by the US Food and Drug Administration Forensic Chemistry Center, was conducted in the Lao People's Democratic Republic. Two hundred three samples of the oral antimal...
We study counterfeiting of currency in a search-theoretic model of monetary exchange. In contrast to Nosal and Wallace (2007), we establish that counterfeiting does not pose a threat to the existence of a monetary equilibrium; i.e., a monetary equilibrium exists irrespective of the cost of producing counterfeits, or the ease with which genuine money can be authenticated. However, the possibilit...
In southeast Asia, the widespread high prevalence of counterfeits tablets of the vital antimalarial artesunate is of great public health concern. To assess the seriousness of this problem, we quantified the amount of active ingredient present in artesunate tablets by liquid chromatography coupled to mass spectrometry. This method, in conjunction with analysis of the packaging, classified tablet...
Very recently, a quantum signature scheme with weak arbitrator was presented [Int. J. Theor. Phys. (2012) 51:2135–2142]. A weak arbitrator is only involved in the disagreement case, which means that the scheme is costless. In this paper, the security of the quantum signature scheme with weak arbitrator is analyzed. We show that attackers can counterfeit a signature for any message, which will p...
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