The rat has been used almost exclusively as the laboratory animal in vitamin A studies. The results obtained with rats have been so consistent that little consideration has been given to the use of other animals. In fact the characteristic development of ophthalmia in the rat has led to considerable neglect in the study of other physiological changes occurring during vitamin A avitaminosis. Sin...

This special Applied Optics issue pays tribute to an extraordinary teacher, scientist, and friend who revolutionized several fields of optics, such as holography, microscopy, and biomedical imaging, by contributing his unique and simplified perspective on complicated phenomena. We thank all the authors who have contributed papers to this special feature as a manifestation of the long and unique...

R. Speck∗†, D. Ruprecht†, M. Emmett‡, M. Minion§, M. Bolten¶ R. Krause†, ∗Jülich Supercomputing Centre, Forschungszentrum Jülich, Germany. †Institute of Computational Science, Università della Svizzera italiana, Switzerland. ‡Center for Computational Sciences and Engineering, Lawrence Berkeley National Laboratory, USA. §Institute for Computational and Mathematical Engineering, Stanford Universi...

Improved Amino Acid Analysis Brian A. Bidlingmeyer Sterling Winthrop Inc. Collegeville, PA 19426-0900 and Thomas L. Tarvin Hewlett-Packard Company Wilmington, DE 19808 The success of this paper was the result of a team effort where each author made timely contributions such that the sum of the pieces was greater than the individual parts. In addition, numerous other unsung heroes were involved ...

A new porous organic-inorganic hybrid tin phosphonate material has been synthesized hydrothermally, which shows a Brunauer-Emmett-Teller surface area of 723 m(2) g(-1) and it adsorbs 4.8 mmol g(-1) CO(2) at 273 K and 5 bar pressure. The material also shows remarkable catalytic activity in one-pot liquid phase oxidation of cyclohexanone to adipic acid under eco-friendly conditions.

−Microsilica, one kind of industrial solid waste material, was utilized firstly to prepare a carbon-microsilica composite adsorbent (CMS). The prepared adsorbent was characterized with XPS, SEM and Gas sorption experiments. The results indicated the SO 3 H groups, which are very effective in capturing cationic organic dye, were introduced onto the surface of CMS; the Brunauer-Emmett-Teller (BET...