The reactions of Pb(C10 ) , and Pb(SCN) with meso-5,7,7,12,14,14-hexamethyl- 1,4,8,ll ,tetra-azacyclotetradecane (C ,H ,N = L) yielded colorless crystals of LPb(CI O ) (1) and LPb(NCS) (2), respectively. Their structures were determined by X-ray crystallography. Crystal data: 1 monoclinic, P 2 /c, a =11.293 (4) ?, b = 16.382 (6) ? , c = 21.518(4) ?, ? = 92.14(2)?, Z = 4, MoKa, 1824 obser...

A fundamental question in the study of concepts is what makes sets of examples cohere as categories. We present results of three studies designed to compare standard taxonomic categories with categories that take their meaning from relationships extending outside of the individual example. An exemplar generation task is used to differentiate relational categories from taxonomic kinds and to com...

Three distinct ocular treatment methods are well-known: conventional, clinical, and laser. Patients were recruited from three centres: Sharp vision at PAR hospital, IBN SINA in CMC Consulting Rezgary followed for 180 days. A total of 3035 eye sufferers observed, it was determined that 22% (673) patients chose laser therapy with the Argon (146 patients) Yag kinds (345 patients). Seventy-eight pe...

BRtlCKE, Kaindl and Mayer 1 showed in 1952 that hypothalamic stimulation in the cat increased the adrenaline percentage of catechol amines in adrenal venous blood from about 11 per cent in the "resting" secretion to about 50 per cent. Since there is no consistent alteration in the adrenaline percentage during the increased secretion following carotid occlusion in the cat, the results of Briicke...

The ability of subjects to identify both components of a concurrent vowel pair was determined when vowel fundamental frequency difference and an interaural time difference (ITD) in one of the vowels were introduced. In agreement with earlier studies it was found that introduction of a fundamental frequency difference significantly improved detection performance (by 22% for a 1 semitone differen...

Several surgical methods for pitch raising have been described such as cricothyroid approximation, anterior commissure advancement, scarification, and injection of triamcinolone into the vocal folds. These procedures have different disadvantages and risks. A new method for pitch raising via endolaryngeal shortening of the vocal folds is presented. Long-term results of the first 10 patients are ...