A preliminary search of stars of rapid variability

A T-association in the constellation: of the Southern Crown was first studied by Joy (1945). Known members are R CrA, T CrA, S CrA and TY CrA which present high peculiarities in both their spectra and their colors (for more details see Joy, 1945; Mendoza, 1968 and 1969; and Mendoza and the Jaschek's, 1968). This work gives preliminary results of a search of stars of rapid variability in brightness in the neighborhood of NGC 6729. This program will be extended to other centers of the Southern Hemisphere.Asociación Argentina de Astronomí

A preliminary search of stars of rapid variability

A T-association in the constellation: of the Southern Crown was first studied by Joy (1945). Known members are R CrA, T CrA, S CrA and TY CrA which present high peculiarities in both their spectra and their colors (for more details see Joy, 1945; Mendoza, 1968 and 1969; and Mendoza and the Jaschek's, 1968). This work gives preliminary results of a search of stars of rapid variability in brightness in the neighborhood of NGC 6729. This program will be extended to other centers of the Southern Hemisphere.Asociación Argentina de Astronomí

A preliminary search of stars of rapid variability

A T-association in the constellation: of the Southern Crown was first studied by Joy (1945). Known members are R CrA, T CrA, S CrA and TY CrA which present high peculiarities in both their spectra and their colors (for more details see Joy, 1945; Mendoza, 1968 and 1969; and Mendoza and the Jaschek's, 1968). This work gives preliminary results of a search of stars of rapid variability in brightness in the neighborhood of NGC 6729. This program will be extended to other centers of the Southern Hemisphere.Asociación Argentina de Astronomí

Declared Maternal Death And The Linkage Between Health Information Systems

Objective: To describe the characteristics of maternal mortality according to the Mortality Information System in relation to the data corresponding to these records that are in other systems. Methods: This was a descriptive study using two information systems on vital data and another on the hospital system, for the 26 state capitals and the Federal District of Brazil, in 2002. Initially, the maternal mortality ratios were calculated and information on declared maternal deaths were obtained. From these data, the Mortality Information System was probabilistically linked with the Live Birth Information System and the Hospital Information System, using the "Reclink II" software, with a multiple-step blocking strategy. For paired records, the diagnoses and hospital procedures brought together by the best-known criteria for severe maternal morbidity were detailed. Results: A total of 339 maternal deaths were recorded in 2002. The official and adjusted maternal mortality ratios were, respectively, 46.4 and 64.9 (deaths per 100,000 live births). By correlating with data from the live birth system, 46.5% of the maternal deaths could be located; and from the hospital information, 55.2%. The most frequent admission diagnosis was infection (13.9%) and the most frequent procedure was intensive care unit admission (39.0%). Conclusions: There were low percentage linkages between the records from the three sources studied. However, the possible failures and/or impossibilities in the linkages indicated may separately or jointly explain these low percentages.412181189AbouZahr, C., Wardlaw, T., (2003) Maternal mortality in 2000: Estimates developed by WHO, , Unicef and UNFPA. Geneva: WHO;Camargo Jr, K.R., Coeli, C.M., Reclink: Aplicativo para o relacionamento de bases de dados, implementando o método probabilistic record linkage (2000) Cad Saúde Pública, 16 (2), pp. 439-447Cecatti, J.G., Faúndes, A., Surita, F.C.C., Maternal mortality in Campinas: Evolution, under-registration and avoidance (1999) São Paulo Med J, 117 (1), pp. 5-12Coeli, C.M., Camargo Jr, K.R., Avaliação de diferentes estratégias de blocagem no relacionamento probabilístico de registros (2002) Rev Bras Epidemiol, 5 (2), pp. 185-196Coeli, C.M., Costa, M.C.E., Almeida, L.M., Probabilistic linkage in household survey on hospital care usage (2003) Rev Saúde Pública, 37 (1), pp. 91-99Fleiss, J.L., (1981) Statistical methods for rates and proportions, , 2nd ed. New York: John Wiley and Sons;Jaro, M.A., Advances in record-linkage methodology as applied to matching the 1985 Census of Tampa, Florida (1989) J Am Stat Assoc, 84, pp. 414-420Laurenti, R., Mello-Jorge, M.H.P., Gotlieb, S.L.D., Reflexões sobre a mensuração da mortalidade materna (2000) Cad Saúde Pública, 16 (1), pp. 23-30Laurenti, R., Mello-Jorge, M.H.P., Gotlieb, S.L.D., A mortalidade materna nas capitais brasileiras: Algumas características e estimativa de um fator de ajuste (2004) Rev Bras Epidemiol, 7 (4), pp. 449-460Machado, C.J., Hill, K., Probabilistic record linkage and an automated procedure to minimize the undecided-matched pair problem (2004) Cad Saúde Pública, 20 (4), pp. 915-925Mantel, G.D., Buchmann, E., Rees, H., Pattinson, R.C., Severe acute maternal morbidity: A pilot study of a definition for a near-miss (1998) Br J Obstet Gynaecol, 105 (9), pp. 985-990Royston, E., AbouZahr, C., Measuring maternal mortality (1992) Br J Obstet Gynaecol, 99, pp. 540-542Sousa, M.H., Cecatti, J.G., Hardy, H.E., Amaral, E., Souza, J.P.D., Serruya, S., Sistemas de informação em saúde e o monitoramento de morbidade materna grave e mortalidade materna (2006) Rev Bras Saúde Matern Infant, 6 (2), pp. 161-168Souza, J.P.D., Cecatti, J.G., Parpinelli, M.A., Sousa, M.H., Serruya, S., Revisão sistemática sobre morbidade materna near miss (2006) Cad Saúde Pública, 22 (2), pp. 255-264Theme Filha, M.M., Silva, R.I., Noronha, C.P., Mortalidade materna no município do Rio de Janeiro, 1993-1996 (1999) Cad Saúde Pública, 15 (2), pp. 397-403Waterstone, M., Bewley, S., Wolfe, C., Incidence and predictors of severe obstetric morbidity: Case-control study (2001) BMJ, 322 (7294), pp. 1089-1093(1999) Reduction of maternal mortality: A joint WHO/UNFPA/Unicef World Bank Statement, , World Health Organization, Geneva;(2004) Beyond the numbers: Reviewing maternal deaths and complications to make pregnancy safer, , World Health Organization, Geneva

Narrow genetic base in forest restoration with holm oak (Quercus ilex L.) in Sicily

In order to empirically assess the effect of actual seed sampling strategy on genetic diversity of holm oak (Quercus ilex) forestations in Sicily, we have analysed the genetic composition of two seedling lots (nursery stock and plantation) and their known natural seed origin stand by means of six nuclear microsatellite loci. Significant reduction in genetic diversity and significant difference in genetic composition of the seedling lots compared to the seed origin stand were detected. The female and the total effective number of parents were quantified by means of maternity assignment of seedlings and temporal changes in allele frequencies. Extremely low effective maternity numbers were estimated (Nfe $\approx$ 2-4) and estimates accounting for both seed and pollen donors gave also low values (Ne $\approx$ 35-50). These values can be explained by an inappropriate forestry seed harvest strategy limited to a small number of spatially close trees

Weak capture of protons by protons

The cross section for the proton weak capture reaction $^1H(p,e^+\nu_e)^2H$ is calculated with wave functions obtained from a number of modern, realistic high-precision interactions. To minimize the uncertainty in the axial two-body current operator, its matrix element has been adjusted to reproduce the measured Gamow-Teller matrix element of tritium $\beta$ decay in model calculations using trinucleon wave functions from these interactions. A thorough analysis of the ambiguities that this procedure introduces in evaluating the two-body current contribution to the pp capture is given. Its inherent model dependence is in fact found to be very weak. The overlap integral $\Lambda^2(E=0)$ for the pp capture is predicted to be in the range 7.05--7.06, including the axial two-body current contribution, for all interactions considered.Comment: 17 pages RevTeX (twocolumn), 5 postscript figure

Energetic particle influence on the Earth's atmosphere

This manuscript gives an up-to-date and comprehensive overview of the effects of energetic particle precipitation (EPP) onto the whole atmosphere, from the lower thermosphere/mesosphere through the stratosphere and troposphere, to the surface. The paper summarizes the different sources and energies of particles, principally galactic cosmic rays (GCRs), solar energetic particles (SEPs) and energetic electron precipitation (EEP). All the proposed mechanisms by which EPP can affect the atmosphere are discussed, including chemical changes in the upper atmosphere and lower thermosphere, chemistry-dynamics feedbacks, the global electric circuit and cloud formation. The role of energetic particles in Earth’s atmosphere is a multi-disciplinary problem that requires expertise from a range of scientific backgrounds. To assist with this synergy, summary tables are provided, which are intended to evaluate the level of current knowledge of the effects of energetic particles on processes in the entire atmosphere

The Earth: Plasma Sources, Losses, and Transport Processes

This paper reviews the state of knowledge concerning the source of magnetospheric plasma at Earth. Source of plasma, its acceleration and transport throughout the system, its consequences on system dynamics, and its loss are all discussed. Both observational and modeling advances since the last time this subject was covered in detail (Hultqvist et al., Magnetospheric Plasma Sources and Losses, 1999) are addressed