94,403 research outputs found
Philippicarcinus Garth & Kim 1983
No full textGenus Philippicarcinus Garth & Kim, 1983 Philippicarcinus Garth & Kim, 1983: 712 (type species Philippicarcinus oviformis Garth & Kim, 1983, by original designation; gender masculine)Published as part of PETER CASTRO, PETER K. L. NG & SHANE T. AHYONG, 2004, Phylogeny and systematics of the Trapeziidae Miers, 1886 (Crustacea: Brachyura), with the description of a new family, pp. 1-70 in Zootaxa 643 on page 58, DOI: 10.5281/zenodo.15885
A note on Kim-Ma characterization of the Hilbert ball
No full textThis is an open access article under the CC BY license.[No abstract available]Kortney Rose Foundation, KRF, (2002-070-C00005); National Research Foundation of Korea, NRF* Corresponding author. E-mail addresses: [email protected] (K.-T. Kim), [email protected] (D. Ma). 1 Research supported in part by the grant KRF 2002-070-C00005 from The Korea Research Foundation
Author Correction: Evaluation of skin cancer resection guide using hyper‑realistic in‑vitro phantom fabricated by 3D printing
No full textThe original version of this Article contained an error in the spelling of the author Taehun Kim which was incorrectly given as Teahun Kim. The original Article has been corrected
Accelerated Cardiac T(2) Mapping using Breath-hold Multiecho Fast Spin-Echo Pulse Sequence with k-t FOCUSS
No full textCardiac T-2 mapping is a promising method for quantitative assessment of myocardial edema and iron overload. We have developed a new multiecho fast spin echo (ME-FSE) pulse sequence for breath-hold T-2 mapping with acceptable spatial resolution. We propose to further accelerate this new ME-FSE pulse sequence using k-t focal underdetermined system solver adapted with a framework that uses both compressed sensing and parallel imaging (e. g., sensitivity encoding) to achieve higher spatial resolution. We imaged 12 control subjects in midventricular short-axis planes and compared the accuracy of T-2 measurements obtained using ME-FSE with generalized autocalibrating partially parallel acquisitions and ME-FSE with k-t focal underdetermined system solver. For image reconstruction, we used a bootstrapping two-step approach, where in the first step fast Fourier transform was used as the sparsifying transform and in the final step principal component analysis was used as the sparsifying transform. When compared with T-2 measurements obtained using generalized autocalibrating partially parallel acquisitions, T-2 measurements obtained using k-t focal underdetermined system solver were in excellent agreement (mean difference = 0.04 msec; upper/lower 95% limits of agreement were 2.26/-22.19 msec, respectively). The proposed accelerated ME-FSE pulse sequence with k-t focal underdetermined system solver is a promising investigational method for rapid T-2 measurement of the heart with relatively high spatial resolution (1.7 x 1.7 mm(2)). Magn Reson Med 65:1661-1669, 2011. (C) 2011 Wiley-Liss, Inc
CIS TRANS ISOMERIZATION AND STRUCTURE OF DIMERIC [ME2GA(MU-NH(T)BU)]2
No full textThe reaction of GaMe3 with tBuNH2 at 110-degrees-C affords a mixture of trans- (1a) and cis-[Me2Ga(mu-NHtBu)]2 (1b) which crystallizes as pure 1a in 75% yield. H-1 NMR study shows that the dimeric amido complex undergoes a cis-trans isomerization (1a --> 1b) in solution. The equilibrium has been observed to follow reversible first-order kinetics with DELTAH-degrees = 3.12 +/- 0.04 kJ mol-1 and DELTAS-degrees = 4.56 +/- 0.06 J mol-1 K-1. The activation parameters for the conversion 1a --> 1b are DELTAH-1 = 120.8 +/- 7.4 kJ mol-1 and DELTAS1 = 41.4 +/- 2.6 J mol-1 K-1 and for the reverse reaction 1b --> 1a are DELTAH-1 = 117.8 +/- 7.9 kJ mol-1 and DELTAS-1 = 37.3 +/- 2.5 J mol-1 K-1. The isomerization is markedly accelerated in the presence of pyridine. A crossover experiment indicates that the isomer interconversion is a unimolecular process. On the basis of these data, a possible pathway for the isomerization is proposed. The molecular structure of 1a has been determined by a single-crystal X-ray diffraction study. The molecular geometry of 1a consists of a centrosymmetric and dimeric unit with two bridging amido groups and two terminal methyl groups bound to each gallium atom. The two N-(t)Bu groups are trans to each other with respect to the (Ga-N)2 ring. The coordination geometry of both the gallium and nitrogen atoms is distorted tetrahedral
CIS TRANS ISOMERIZATION AND STRUCTURE OF DIMERIC [ME2GA(MU-NH(T)BU)]2
No full textThe reaction of GaMe3 with tBuNH2 at 110-degrees-C affords a mixture of trans- (1a) and cis-[Me2Ga(mu-NHtBu)]2 (1b) which crystallizes as pure 1a in 75% yield. H-1 NMR study shows that the dimeric amido complex undergoes a cis-trans isomerization (1a --> 1b) in solution. The equilibrium has been observed to follow reversible first-order kinetics with DELTAH-degrees = 3.12 +/- 0.04 kJ mol-1 and DELTAS-degrees = 4.56 +/- 0.06 J mol-1 K-1. The activation parameters for the conversion 1a --> 1b are DELTAH-1 = 120.8 +/- 7.4 kJ mol-1 and DELTAS1 = 41.4 +/- 2.6 J mol-1 K-1 and for the reverse reaction 1b --> 1a are DELTAH-1 = 117.8 +/- 7.9 kJ mol-1 and DELTAS-1 = 37.3 +/- 2.5 J mol-1 K-1. The isomerization is markedly accelerated in the presence of pyridine. A crossover experiment indicates that the isomer interconversion is a unimolecular process. On the basis of these data, a possible pathway for the isomerization is proposed. The molecular structure of 1a has been determined by a single-crystal X-ray diffraction study. The molecular geometry of 1a consists of a centrosymmetric and dimeric unit with two bridging amido groups and two terminal methyl groups bound to each gallium atom. The two N-(t)Bu groups are trans to each other with respect to the (Ga-N)2 ring. The coordination geometry of both the gallium and nitrogen atoms is distorted tetrahedral.X1138sciescopu
Search for violation in decays and observation of the Cabibbo-suppressed decay
No full textWe search for violation by measuring a -odd asymmetry in the
Cabibbo-suppressed decay, and
in the Cabibbo-favored and
decays. We use 980 of data collected by the Belle detector running at the KEKB
asymmetric-energy collider. The -violating -odd parameter
is measured to be
and
where the first
uncertainty is statistical and the second is systematic. We also report the
first observation of the Cabibbo-suppressed decay . The branching fraction is measured relative to
that of the analogous Cabibbo-favored decay :
- …
