P. H. Penteado,1,2 F. M. Souza,2 A. C. Seridonio,3 E. Vernek,2 and J. C. Egues1 1Instituto de Fı́sica de São Carlos, Universidade de São Paulo, 13560-970, São Carlos, SP, Brazil 2Instituto de Fı́sica, Universidade Federal de Uberlândia, 38400-902, Uberlândia, MG, Brazil 3Departamento de Fı́sica e Quı́mica, Universidade Estadual Paulista Júlio de Mesquita Filho, 15385-000, Ilha Solteira, SP, Brazil....

Let n = (n1, . . . , nr). The quotient space Pn := S n1× · · ·×Snr/(x ∼ −x) is what we call a projective product space. We determine the integral cohomology ring H∗(Pn) and the action of the Steenrod algebra on H∗(Pn;Z2). We give a splitting of ΣPn in terms of stunted real projective spaces, and determine when Si is a product factor of Pn. We relate the immersion dimension and span of Pn to the...

The crystal structure of the title compound, [Ni(C(6)H(6)N(4)S(2))(H(2)O)(4)][Ni(C(7)H(3)NO(4))(2)]·3H(2)O, consists of Ni(II) complex cations, Ni(II) complex anions and lattice water mol-ecules. The Ni(II) ions in both the complex cation and anion assume a distorted octa-hedral coordination geometry. O-H⋯O, N-H⋯O and C-H⋯S hydrogen bonds occur in the crystal structure.

The entire life cycle of Rhodnius domesticus, fed weekly on mice, was studied under controlled conditions. Aspects related to hatching, life time, mortality, feeding behaviour and fecundity for each stage of the insect life-cycle were evaluated. The hatching rate observed in 100 eggs was 57% and the mean time of hatching was 15.6 days. Forty-six nymphs (80.7%) completed the cycle and the mean t...

Aspects related to hatching, life time, mortality, feeding behaviour and fecundity for each stage of Triatoma pallidipennis life-cycle were evaluated. The hatching rate observed for 200 eggs was 60% and the average time of hatching was 18 days. Eighty nymphs (N) (40%) completed the cycle and the average time from NI to adult was 168. 7+/-11.7days. The average span in days for each stage was 18....

We have demonstrated an extremely facile procedure for the preparation of 1D porous Ni@C nanostructures by pyrolysis of Ni-based coordination polymer nanorods. The highly aligned Ni-based polymer nanorods were prepared using nitrilotriacetic acid (NTA) as a chelating agent by a one-step solvothermal approach. The obtained precursors are demonstrated to have a well-designed 1D nanostructure and ...

1 Institute of Clinical Medicine-Neurology, University of Eastern Finland, 70210 Kuopio, Finland 2Neurology, Neurocenter, University Hospital of Kuopio, 70210 Kuopio, Finland 3Instituto de Biof́ısica Carlos Chagas Filho, Federal University of Rio de Janeiro, 21941-902 Rio de Janeiro, RJ, Brazil 4D’Or Institute of Research and Education, 22281-100 Rio de Janeiro, RJ, Brazil 5Fraunhofer Research I...

Two new end-to-end (EE) cyanate bridged 1D coordination polymers of Ni(II) are isolated which contain linear (180°) Ni-N-C and Ni-O-C angles in Ni-NCO-Ni bridges and show ferromagnetic (F) coupling in agreement with the reported theoretical model for linear EE bridges.