Contact urticaria is defined as a wheal-and-flare reaction that occurs after epicutaneous contact with a causative agent (1). Contact urticaria usually appears within minutes after contact with the causative substances, including chemicals, animal products, antibiotics and cosmetics. We report here a case of contact urticaria resulting from exposure to a disinfectant liquid spray containing eth...

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In this paper we provide a general model of ‘quaternary’dichotomous voting rules (QVRs), namely, voting rules for making collective dichotomous decisions (to accept or reject a proposal), based on vote pro…les in which four options are available to each voter: voting (‘yes’, ‘no’or ‘abstaining’) or staying home and not turning out. The model covers most of actual real-world dichotomus rules, wh...

This paper studies two families of codes over Z4, MacDonald codes of type α and type β. The torsion code, weight distribution, and Gray image properties are studied. Some interesting optimal binary codes are also obtained. Two nonlinear families of binary codes are obtained via the Gray map.

Highly luminescent oil-soluble quaternary Zn-Ag-In-Se (ZAISe) quantum dots (QDs) with extremely wide emission covering the spectral range from 550 to 1000 nm have been synthesized for the first time. These broadly emissive quaternary QDs are demonstrated to have greater potential in the use of one probe for multi-spatial scale biomedical imaging than binary CdTe and ternary Cu-In-S QDs.

Dear friends, In 1997 or 1998 I began to write a paper [20], trying to extend the known description of binary forms of norm unity, in the real or complex cases, to the case of quaternions, but I never finished it. In 2002, I resumed my work but then I was unable to understand what I had done, so I made a fresh start with somewhat different assumptions. Now I have realized that this was a gross ...