Crystallization and preliminary X-ray study of haem-binding protein from the bloodsucking insect Rhodnius prolixus

Rhodnius haem-binding protein (RHBP) from the bloodsucking insect Rhodnius prolixus, a 15 kDa protein, has been crystallized using polyethylene glycol as a precipitant. X-ray diffraction data have been collected at a synchrotron source. The crystals belong to the space group P4(1(3))2(1)2, with unit-cell parameters a = b = 64.98, c = 210.68 Angstrom, and diffract beyond 2.6 Angstrom resolution.57686086

Seasonal and Vertical Distribution of Phyllophaga cuyabana (Moser) (Coleoptera: Melolonthidae) in the Soil Profile

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Phyllophaga cuyabana (Moser) temporal and vertical distribution patterns were evaluated in the soil profile, in order to subsidize methodology for population sampling, aiming at its management. In insect surveys carried out during three years, in Boa Esperanca County, State of Parana, Brazil, Phyllophaga cuyabana was univoltine, with little overlap of the larval stages. Population peaked during December-February, but declined during the colder months, when larvae were in diapause. Different developmental stages exploited distinct soil depths. Eggs and early first instars tended to concentrate between 5 cm and 10 cm deep, but they spread more uniformly through the soil profile, reaching depths up to 30 cm, as they developed. Adults and eggs occurred in the spring (October to December) when active larvae also started to be observed; feeding larvae occurred up to late-April between 0 to 15 cm deep. Diapausing larvae and pupae were observed from early fall to early spring, mostly from 15 cm to 30 cm deep. Throughout the year, the number of insects in the soil (up to 40 cm deep) showed a positive functional relationship with air temperature and evapotranspiration. The relationship of percent distribution of larvae in the soil profile and soil temperature, however, was positive only above 10 cm. To estimate the insect population from November to April, samples can be collected until 20 cm deep; from May to October, however, samplings should be deeper, up to 30 cm.385582588Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES

Multiple dipole bands at prolate shapes in Nd136 and their description through the projected shell model

none11Five bands dominated by strong M1 transitions have been observed in the 136Nd nucleus. Two of them consist of only dipole transitions, whereas the other three show also weak crossover transitions. The bands have been firmly connected to lower-spin states. Theoretical calculations using the projected shell model suggest quasiparticle configurations involving two protons and two neutrons for the four lowest-lying bands.noneC. Petrache;Y. Sun;D. Bazzacco;S. Lunardi;C. Alvarez;R. Venturelli;D. De Acuña;G. Maron;M. Rao;Z. Podolyák;J. OliveiraC., Petrache; Y., Sun; D., Bazzacco; Lunardi, Santo; C., Alvarez; Venturelli, Roberto; D., De Acuña; G., Maron; M., Rao; Z., Podolyák; J., Oliveir

Co-58: Structure of an odd-odd nucleus in the pf shell

High-spin states in the odd-odd 58 Co nucleus have been studied with the fusion-evaporation reaction 51 V( 10 B ,p 2 n ) using the γ -spectrometer Saci-Perere. Thirty-six new excited states up to spin 11 + and an excitation energy of 8.0 MeV have been observed, which are connected by 46 γ -ray transitions. Transition probabilities for 14 excited states were measured through the Doppler-shift attenuation method. The results are compared with shell-model calculations using the GXPF1 effective interaction, developed for use in the pf shell. These results were interpreted by considering particle-hole excitations with respect to the doubly magic N = Z = 28 core.status: publishe

Nuclear structure of the odd-odd nucleus Co-58

The odd–odd 58 Co nucleus has been studied with the 51 V( 10 B, p2 n ) reaction at 33 MeV and 36 MeV incident energy using the γ -spectrometer Saci-Perer ˆ e. Excited states up to 8.0 MeV and spin up to 11 + have been observed. DSAM lifetimes for 13 excited states were measured. The results are compared to shell model calculations using the GXPF1 effective interaction, developed for use in the fp shell.status: publishe