We observed the 2001 November superoutburst of CC Cnc. This observation makes the first detailed coverage of a superoutburst of this object. The best-determined mean superhump period is 0.075518±0.000018 d, which is 2.7% longer than the reported orbital period. This fractional superhump excess is a quite typical value for a normal SU UMa-type dwarf nova, excluding the previously raised possibil...

A recent survey of the Cambridge Structural Database, CSD [Allen (2002). Acta Cryst. B58, 380-388], shows that the percentage of incorrect assignments of the space group Cc has remained at about 10% since the last survey in 1997.

The space groups of 98 structures originaJly reported in Cc are revised. In 75 cases the revised space group is C2/c and the revision entails adding a center of symmetry, usually leading to large changes in bond lengths and angles. In the remaining 23 cases, where the revised space group is Fdd2, R3c or (in one case) 14c2, the lattice type is changed but no center is added; in these cases the m...

The discovery of $\Xi_{cc}^{++}$ has inspired new interest in studying doubly heavy baryons. In this study, the weak decays a charmed baryon ${\cal B}_{cc}$ to light B}$ and charm meson $D^{(*)}$ (either pseudoscalar or vector one) are calculated. Following our previous work, we calculate short distance contributions under factorization hypothesis, whereas long modeled as final state interactio...

This report describes the fermentation, isolation, and structural elucidation of tetracenomycin (Tcm) F2 [2], a metabolite produced by a blocked mutant strain WMH1092 of the Tcm C [1] producer Streptomyces glaucescens and by the recombinant strain S. glaucescens WMH1077 (pWHM722). Elucidation of the Tcm F2 structure shows that 2 is the earliest intermediate identified to date in the biosynthesi...

Introduction: Corpus callosum (CC) as an intracranial organ is located in midline of cerebrum communicating both right and left hemispheres. CC undergoes morphological changes in multiple sclerosis (MS). Since the morphometrical changes of organs are directly associated with geographical regions, thus the aim of this study was to investigate the morphological alteration of CC in patients with r...

The structural and energetic characteristics of O3–H2O complexes have been investigated by means of B3LYP, MP2, MP4(SDTQ), CCSD(T) and QCISD(T) methods in conjunction with the AUG-cc-pVDZ and AUG-cc-pVTZ basis sets. Six conformers were found for the O3–H2O complex. Two different intermolecular interactions were expected to participate in the formation of complexes, namely conventional O∙∙∙H hyd...

In order to evaluate the effects of short course administration of dexamethasone (DEX) combined with clomiphene citrate (CC) in CC-resistant patients with polycystic ovary syndrome (PCaS) and normal DHEAS, a prospective, double blind, placebo controlled, randomized study was undertaken at referral university hospitals, Two-hundred and thirty women with PCOS and normal DHEAS who failed to ...