To avoid legislation based on chemical structure, research chemicals, frequently used for recreational purposes, are continually being synthesized. N-Ethyl-1,2-diphenylethanamine (ephenidine) is a diarylethylamine that has recently become popular with recreational users searching for dissociative hallucinogenic effects. In the present study, the pharmacological basis of its neural actions has b...

The success of flotation operation depends upon the thriving interactions of chemical and physical variables. In this work, the effects of particle size, bubble size, and collector dosage on the bubble loading in a continuous flotation column were investigated. In other words, this work was mainly concerned with the evaluation of the true flotation response to the changes in the operating varia...

A new end-to-end seamless mobility management protocol, called Seamless IP diversity-based Generalized Mobility Architecture (SIGMA), which utilizes multi-homing to achieve seamless handover of a mobile host and overcomes a number of performance bottlenecks and security limitations of Mobile IP, has been proposed in the literature. Various performance aspects of SIGMA have been widely studied i...

In our earlier study, we proposed SIGMA, a Seamless IP diversity based Generalized Mobility Architecture. SIGMA utilizes multihoming to achieve a seamless handover of a mobile host, and is designed to solve many of the drawbacks of Mobile IP. In this paper, we evaluate the impact of Layer 2 connection setup on the performance of SIGMA. Various aspects of Layer 2 connection setup are considered ...

The nuclear isotropic shielding constants sigma((17)O) and sigma((13)C) of the carbonyl bond of acetone in water at supercritical (P=340.2 atm and T=673 K) and normal water conditions have been studied theoretically using Monte Carlo simulation and quantum mechanics calculations based on the B3LYP6-311++G(2d,2p) method. Statistically uncorrelated configurations have been obtained from Monte Car...

This work presents for the first time the electrochemical determination of europium using cyclic voltammetry at gold electrodes modified with 2-pyridinol-1-oxide. A well-defined oxidation peak was observed in cyclic voltammetry as a result of the oxidation of the europium at ∼1100 mV in phosphate buffer at pH 7.0. The peak current increased linearly with the increase of concentration of the eur...

malography on a column of Con A-Sapharosa (Pharmacia Fine Chemicals Inc., Piscahaway, N. J.). The CEA sample was dissolved in Con A buffer (1.0 M NaCi in 0.1 M sodium acetate buffer, pH 6.0; 1 mM in each of CaCI2, MgCi2, and MnCl2) and applied to a waler-jacketed column (22 x 1.5 cm) of Con A-Sepharose. Pool 1 material was obtained by alul ing the column at 4°with 1.5 column volumes of Con A b...

studies pertaining convergence and its benefits for developing and underdeveloped countries, specifically latin american countries and the caribbean islands are essential because they can create the necessary grounds for further growth and development. the aim of this study is to analyze the economic growth of latin american countries and the caribbeans after their beta and sigma convergences d...