Changes of glycosphingolipids (GSLs) in the bipotential cell differentiation of human promyelocytic leukemia cell line HL-60 cells were investigated by high-performance thinlayer chromatography (HPTLC). with special reference to morphological and functional changes, such as phagocytosis and nitroblue tetrazolium (NBT) reduction. Nine molecular species of neutral GSLs and 1 3 or more species of ...

A simple, precise and accurate high-performance thin-layer chromatographic method has been established for quantitative determination of quinine. Conditions were also optimized for best possible extraction of quinine via varying concentrations of diethyl amine in different solvents (n-hexane, chloroform, ethyl acetate and methanol) for maximum recovery of quinine. Methanol modified with 20 % DE...

Um método foi desenvolvido e validado para a determinação de ocratoxina A (OTA) em vinho. Foi utilizado um sistema contendo um detector de carga acoplada (CCD) para adquirir as imagens fluorescentes da micotoxina obtidas a partir das placas de cromatografia em camada delgada de alta eficiência (HPTLC) sob luz ultravioleta. O método desenvolvido mostrou recuperação média de 90,4%. O limite de qu...

The present study was aimed at identification, isolation and quantification of marker compound Lupeol in Derris heyneana (Wight and Arn) Benth. by using HPTLC. A simple and sensitive High-Performance Thin-Layer Chromatographic (HPTLC) method validation was carried out as per the ICH guidelines for the identification and quantification of biomarker lupeol in root, stem and leaves of Derris heyne...

Crataeva tapia Linn. ssp. odora (Jacob.) Almeida, a traditional medicinal plant, which is valued for its benefits in the management of urinary and inflammatory disorders. Leaves are externally rubefacient and used in rheumatism; internally they are given as febrifuge and tonic. The leaves also act as anti-periodic. The current study was therefore carried out to provide requisite pharmacognostic...

The effects of non-ionic surfactants as mobile phase additives on the fluorescence intensity of dansyl derivatives of biogenic amines in high-performance thin-layer chromatography (HPTLC) were investigated. The dansyl derivatives of putrescine, cadaverine, spermidine and spermine were separated by HPTLC with silica gel as stationary phase and an eluent consisting of chloroform–triethylamine (2 ...

Title of Dissertation: A JOINT CODING AND EMBEDDING FRAMEWORK FOR MULTIMEDIA FINGERPRINTING Shan He, Doctor of Philosophy, 2007 Dissertation directed by: Professor Min Wu Department of Electrical and Computer Engineering Technology advancement has made multimedia content widely available and easy to process. These benefits also bring ease to unauthorized users who can duplicate and manipulate m...

In fingerprinting, a signature, unique to each user, is embedded in each distributed copy of a multimedia content, in order to identify potential illegal redistributors. This paper investigates digital fingerprinting problems involving millions of users and a handful of colluders. In such problems the rate of the fingerprinting code is often well below fingerprinting capacity, and the use of co...

Keywords: Co-utility Multicast fingerprinting Anonymous fingerprinting Game theory a b s t r a c t In conventional multicast transmission, one sender sends the same content to a set of receivers. This precludes fingerprinting the copy obtained by each receiver (in view of redistribution control and other applications). A straightforward alternative is for the sender to separately fingerprint an...

Digital fingerprinting of multimedia data involves embedding information in the content signal and offers protection to the digital rights of the content by allowing illegitimate usage of the content to be identified by authorized parties. One potential threat to fingerprinting is collusion, whereby a group of adversaries combine their individual copies in an attempt to remove the underlying fi...