A rapid, specific, and reproducible high-pressure liquid chromatographic method was developed for the determination of cefoperazone concentration in serum and tissue. The assay uses a simple methanol extraction, with cefoxitin as the internal standard. The limits of detection are 1 to 150 micrograms/ml; the maximum coefficient of variation is 7.4%. Using the same chromatography column, muBondap...

A new method is presented for the joint estimation of the inharmonicity coefficient and the fundamental frequency of inharmonic instrument sounds. The proposed method iteratively uses a peak selection algorithm and a joint parameters estimation method based on nonlinear optimization. We further introduce an adapted tessitura model to evaluate our proposed method for piano sounds and to compare ...

BACKGROUND The adapted arcometer has been validated for use in adults. However, its suitability for use in children can be questioned given the structural differences present in these populations. OBJECTIVE To verify the concurrent validity, repeatability, and intra- and inter-reproducibility of the adapted arcometer for the measurement of the angles of thoracic kyphosis and lumbar lordosis i...

In this paper, we propose a user interface for online shopping that uses a two dimensional product map to present products. This map is created using multidimensional scaling (MDS). Dissimilarities between products are computed using an adapted version of Gower’s coefficient of similarity based on the attributes of the product. The user can zoom in and out by drawing rectangles. We show an appl...

Numerical stability is considered for several Runge-Kutta methods to systems of neutral delay differential equations. The linear stability analysis is adopted to the system. Adapted with the equistage interpolation process as well as the continuous extension, the Runge-Kutta methods are shown to have the numerical stability similar to the analytical asymptotic stability with arbitrary stepsize,...

Introduction: Sniffin’ Sticks smell identification test is a tool used for evaluation of olfactory function but the results are culture-dependent. It relies on the subject’s familiarity to the odorant and descriptors. This study aims to develop the Malaysian version of Sniffin’ Sticks smell identification test suitable for local population usage. Materials and Methods:   The o...

OBJECTIVE To translate into Arabic and validate the SF-36 quality of life index in a Tunisian Arabic population. BACKGROUND No validated Arabic quality of life index is published. DESIGN Arabic translation of the SF-36 scale was obtained by the "forward/backward translation" method. Adaptations were made after a pilot study involving 22 subjects from general population. Inter-rater reliabil...