Authors:Fatima Bachir Halimeh, Rayane Rafei, Seydina Diene, Mary Mikhael, Hassan Mallat, Marcel Achkar, Fouad Dabboussi, Monzer Hamze, and Jean-Marc Rolain
contentious closeness between E. coli and Shigella spp. led to many challenges in their identification and differentiation in routine laboratories. Nowadays, many methods have been suggested to solve this dilemma as Duplex Real-Time Polymerase Chain
Authors:C. Auguet, F. Martorell, F. Moll, and V: Torra
The miniaturized calorimetric devices furnish a reduced working flat surface and permits measurements with extremely low-mass
quantities. The experimental sensitivity shows relevant position dependence with x-y surface coordinates and with z-distance. The device identification is realized via a 2-D model based in Fourier general equation.
Using the Marquardt method the experimental flat surface device can be identified and the fitted parameters used to simulate
the behavior of the experimental system. From the model, the effects of several dissipation configurations can be evaluated.
Also, via the RC-analogy, a way to 3-D experimental devices is roughly described.
the city planning, and their map identification should be incorporated into zoning maps. Their restoration into the original function is not the only solution; any form of protection in situ by putting them to different uses is also valuable. Changing
Authors:L. Lv, L. Zhao, X. Wang, H. Zhang, Z. Zhu, Y. Chai, and G. Zhang
Epimedium pubescens Maxim. and Epimedium koreanum Nakai. are two common and confused species of Herba Epimedii in Chinese Pharmacopoeia 2010 edition. Different species and growing conditions lead to chemical differences between the two species which may result in the improper clinical usage. In this work, a new method based on rapid-resolution liquid chromatography combined with time-of-flight mass spectrometry (RRLC/TOFMS) has been developed for identification and differentiation of major flavonoids in two kinds of Epimedium extract and rat plasma. The compounds were identified effectively based on the accurate extract masses and formulae acquired by RRLC/TOFMS. The fragmentation rules deduced by collision-induced dissociation (CID) were successfully implemented in distinguishing some of the isomers, further validating the results. By using the combined analytical techniques, a total of 40 major flavonoids in extracts of two kinds of Epimedium were identified within 30 min, including 31 common components and 9 characteristic components. After oral administration, three prototype compounds in rat plasma were detected by comparing the constituents measured in vitro with those in vivo, and five metabolites were identified by contrasting the fragmentation rules. The identification and structural elucidation of the chemical constituents provided essential data for further pharmacological and clinical studies on different species of Epimedium.
Authors:Paul Delfabbro, Anna Thomas, and Andrew Armstrong
range of visible indicators might be used to assist in the reliable identification of problem gamblers in situ. These concerns are described, for example, in a review by Allcock ( 2002 ) that documents the views of a number of international experts and
Authors:Tugce Unalan-Altintop, Alper Karagoz, and Gulsen Hazirolan
hospital laboratories. It is simply based on generating a protein mass spectrum of the suspected microorganism and identifying by comparison of its library of spectra. This identification is quantified by the score obtained with the correlation of main