In last years, the study of the geometry of surfaces in product spaces S 2 × R and H × R is developed by a large number of mathematicians. In [1] the authors study constant angle surfaces in S ×R, namely those surfaces for which the unit normal makes a constant angle with the tangent direction to R. In this paper we classify constant angle surfaces in H × R, where H is the hyperbolic plane.

Primary angle closure glaucoma is usually a bilateral disease, though it may be asymmetrical. However, it is unusual to see advanced glaucoma in one eye and no disk damage in the other. We present a case of unilateral angle closure glaucoma complicated by an optic disk pit and iridociliary cysts. How to cite this article: Kaushik S, Ichhpujani P, Kaur S, Pandav SS. Optic Disk Pit and Iridocilia...

In the title compound, C(24)H(25)N(3)S(2), the S-bound benzene rings have orthogonal [dihedral angle = 85.31 (9)°] and splayed [67.92 (11)°] orientations with respect to the pyrimidine ring; the dihedral angle between the benzene rings is 48.18 (12)°. The pentyl group has an extended all-trans conformation and lies to one side of the pyrimidine ring [the N(py)-C(py)-C(p)-C(p) torsion angle = -8...

We consider a family of nonlocal capillarity models, where surface tension is modeled by exploiting the family of fractional interaction kernels |z|−n−s, with s ∈ (0, 1) and n the dimension of the ambient space. The fractional Young’s law (contact angle condition) predicted by these models coincides, in the limit as s → 1−, with the classical Young’s law determined by the Gauss free energy. Her...

Landshoff has recently pointed out that in composite models for hadronhadron wide angle scattering, processes where the constituents remain close to their mass shells throughout the scattering can dominate the wide angle cross sections. We use a Feynman parametric integral to estimate the phase space for such a process and confirm Landshoff’s result. The differential cross section for elastic r...

In the title compound, [Zn(C(20)H(16)N(3)S(2))(2)]·CH(3)CN, two different Schiff base moieties coordinate to the central Zn(II) ion as tridentate N,N',S-chelating ligands, creating a distorted octa-hedral environment [the smallest angle being 73.24 (6)° and the widest angle being 155.73 (7)°], with the two S atoms in cis positions. The dihedral angle between the mean planes of the two coordinat...

The purpose of this study is to use computer simulation to establish the optimal release conditions for javelin world record holders. The researcher adopted the data on the relationship between the attack angle and the distance from COM (the javelin’s center of mass) to COP (the javelin's center of pressure), and used javelins which complied with the new rules [1]. Then numerical methods were u...

In the title compound, C(16)H(13)BrN(4)O(4)S, the dihedral angle between the aromatic rings is 4.1 (2)° and the C=N-N=C torsion angle is 175.5 (3)°. The nitro group is almost coplanar with the benzene ring to which it is attached [dihedral angle = 2.9 (7)°]. The thia-zine ring has an S-envelope conformation with the S atom displaced by 0.819 (3) Å from the mean plane of the other five atoms (r....

In the crystal structure of the title compound, C(13)H(10)ClNO(3)S, the conformation of the N-H bond in the C-SO(2)-NH-C(O) segment is anti to the C=O bond. The dihedral angle between the two aromatic rings is 68.6 (1)°. The mol-ecule is twisted at the S atom with a dihedral angle of 75.7 (1)° between the sulfonyl benzene ring and the -SO(2)-NH-C-O segment; the dihedral angle between the latter...

In the title compound, C(14)H(12)N(2)O(5)S, the dihedral angle between the nitro-phenyl group and the -S-NH-C-O fragment is 80.74 (17)° and that between the nitro-phenyl and methyl-phenyl groups is 87.66 (14)°. The C-S-N-C torsion angle at the S-N bond is -67.0 (3)°. In the crystal, mol-ecules are linked into C(4) chains via N-H⋯O hydrogen bonds.