BACKGROUND AND AIMS Exogenous ethylene has recently gained commercial interest as a sprouting inhibitor of onion bulbs. The role of ethylene in dormancy and sprouting of onions, however, is not known. METHODS A cultivar (Allium cepa 'Copra') with a true period of dormancy was used. Dormant and sprouting states of onion bulbs were treated with supposedly saturating doses of ethylene or with th...

Traps that use ultraviolet light as an attractant for flies are widely used in urban situations. To determine the differences in trap efficacy from design and lighting, pairs of traps were compared under laboratory conditions. Comparisons were made between traps with open fronts and with traps with restricted open fronts, black light bulbs, and black light blue bulbs, and glue boards with and w...

The defects related to the gate–dielectric in high-j-MOSFETs are studied using the 1/f noise technique. Three different types of gate electrodes were used for this purpose – poly-Si, metal (TiN/TaN) and fully Ni Silicided (FUSI) electrodes with Hf-based oxides as the gate dielectric layer. All the three types of devices show a specific behavior near the gate electrode–dielectric interface when ...

THE discovery that many strainis of staphylococci produce a toxini (Neisser and XVNlechsberg, 19011; Kraus anid Pibream, 19062; Parker, 19243; and Burnet, 19294) has thrown fresh light on the problem of the treatment of staphylococcal lesions. From staphylococcal toxin, Panton, Valentine, and Dix (1931)5 successfully prepared staphylococcal toxoid. In 1933 Parish6 found that staphylococcal toxo...

Parallel to the olfactory system, most mammals possess an accessory olfactory or vomeronasal system. The olfactory and vomeronasal epithelia project to the main and accessory olfactory bulbs, which in turn project to adjacent areas of the telencephalon, respectively. New data indicate that projections arising from the main and accessory olfactory bulbs partially converge in the rostral telencep...

Stefano Fusi, Wael F. Asaad, Earl K. Miller & Xiao-Jing Wang Institute of Physiology, University of Bern, Switzerland. Volen Center for Complex Systems, Brandeis University, 415 South St, Waltham, MA 02454. The Picower Institute for Learning and Memory, RIKEN-MIT Neuroscience Research Center, and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02...

Besides onions being one of the most cultivated and consumed vegetables, during storage onion bulbs are still affected by many physiological, biochemical and technological factors which can influence their quality. Respiration rate (RR O2 ), soluble sugars (SS), total phenolics (TP), and peroxidase (POD) activity were measured in inner bud tissues during a dormancy break of onion bulbs treated ...