نتایج جستجو برای: 38 and 106
تعداد نتایج: 16845269 فیلتر نتایج به سال:
Ruthenium trihydrides containing N-heterocyclic carbene ligands display large quantum mechanical exchange couplings in their 1H NMR spectra: DFT calculations are used to explore this phenomenon and to compare them to their phosphine congeners.
Reactions of [(η(6)-cymene)Ru(μ-Cl)Cl]2 with acylpyrazolone ligands HQ' (HQ' in general; in detail, HQ(CH2Cl) = 2-chloro-1-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)ethanone), HQ(hex) = 1-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)heptan-1-one), HQ(nPe) = 1-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-3,3-dimethylbutan-1-one)), in the presence of base, gave the corresponding [(η(6)-cymene...
K. Langanke,1 P. Vogel,2 and E. Kolbe3 1W. K. Kellogg Radiation Laboratory, 106-38, California Institute of Technology, Pasadena, California 91125 2Physics Department, California Institute of Technology, Pasadena, California 91125 3Institut für Physik, Universität Basel, Basel, Switzerland (Received 27 November 1995) We suggest that photons with energies between 5 and 10 MeV, generated by the (...
The β-decay half-lives of 38 neutron-rich isotopes from (36)Kr to (43)Tc have been measured; the half-lives of (100)Kr, (103-105)Sr, (106-108)Y, (108-110)Zr, (111,112)Nb, (112-115)Mo, and (116,117)Tc are reported here. The results when compared with previous standard models indicate an overestimation in the predicted half-lives by a factor of 2 or more in the A≈110 region. A revised model based...
The anorectal physiology of 106 children with long-standing chronic constipation, who had failed to response to a trial of medical treatment, was assessed. 10 (9%) were shown to have ultrashort-segment Hischsprung's disease, later confirmed on histology, The remainder showed evidence of hypertrophy of the internal sphicter on anorectal manometry and had a vigorous anal dilatation (to accept 4 f...
Of 106 African patients undergoing appendicectomy, 56 patients had stump invagination and 50 had simple ligation. The two groups were similar with respect to age, duration of symptoms, incision, degree of appendix inflammation and post-operative antibiosis. Patients whose wounds were drained were excluded. The frequency of wound infection was 8.9% in stump invagination and 6% in simple ligation...
The Skyrme effective field theory is tested by evaluating nucleon ground state matrix elements of the correlation functions for two flavor density operators and two pseudoscalar density operators in the Skyrme model and comparing them with results in quenched lattice QCD. The possiblility of using quenched lattice QCD to study higher-order terms in effective field theory is also discussed. Subm...
Gene in Prostatic Carcinoma p 73 Mutation , Allelotyping , and Transcription Analyses of the Updated
A novel gene,/? 73, encoding a protein with significant homology top53, was recently identified at Ip36. To investigate penetrance of p 73 in prostatic carcinogenesis, mutation, allelotyping, and transcription analy ses of p73 were performed in prostatic carcinoma. No types of mutation causing amino acid substitutions or frameshifts were found in 106 cases examined. Loss of heterozygosity in th...
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