A series of sixand eight-membered ring-fused aminothiophenes 1-8 was investigated in terms of the height of the rotational barrier of the amino group by dynamic H NMR spectroscopy and quantum chemical methods. The restricted rotation around the N-C(sp) bond depends only on steric influences of the fused ring. The compounds with the eight-membered fused ring show a decreased barrier to rotation....

The authors report a case of traumatic dislocation of both interphalangeal joints of the ring finger in a 29-year-old male patient, an injury sustained while playing soccer football. Reduction was achieved by closed manipulation, followed by splinting in the "intrinsic plus" position. The joints were stable but had not yet fully recovered their mobility at six months follow-up. The authors surv...

Methods The patient, a 60-year-old man, was conscious and haemodynamically stable at admission to the hospital after a car accident in 80 km/h. No neurological deficits were found. CTscan showed a U-shaped fracture of the sacrum in the S2 level and bilateral fracture of the transverse processes in L5. The pelvic ring was intact. The fracture was thus treated conservatively, since there was insi...

The dissociation dynamics of p-difluorobenzene–Ar and p-difluorobenzene–Ar have been investigated from the 5 level in S1 and the 292 level in D0 , respectively. The technique of velocity map imaging has been used to determine the translational energy release distributions. In the case of 5 p-difluorobenzene–Ar, dispersed fluorescence spectra provide the distribution of vibrational energy in the...

FliG, FliM, and FliN, key proteins for torque generation, are located in two rings. The first protein is in the M ring and the last two are in the C ring. The rotational symmetries of the C and M rings have been determined to be about 34 (this paper) and 26 (previous work), respectively. The mechanism proposed here depends on the symmetry mismatch between the rings: the C ring extends 34 levers...

Purpose We present a case of a patient with Soemmering ring after cataract surgery and a potential complication that can arise as a result of its presence. Observations A patient with history of ruptured globe status after repair and lensectomy, complicated by aphakic secondary open angle glaucoma, was referred for management of second injury to the same eye. This injury resulted in Soemmerin...

The (v′ = 34, J′ = 14) level of the A∑u electronic state of Na2 has been selectively populated by excitation with the 578.1 nm line of a ring dye-laser with rhodamine 6G. Through collisions with (S1/2) Na atoms, energy is transferred to neighbouring rotational levels in Na2, and the density of these levels is determined by observing the fluorescence to the electronic ground state. From previous...

We develop the theory of nuclear ring currents induced by external magnetic fields in torsional molecules. The is applied to toluene, whose torsion axis oriented along field. obtain magnetically diatropic and paratropic contributions current flowing classical nonclassical directions, respectively. In electronic rotational ground state strengths ring-current susceptibilities are $\ensuremath{-}1...