BACKGROUND The aim of this study was to examine the chronicity of sleep problems in children with chronic illness, and potential predictors of sleep problems. METHODS Using data from a longitudinal total population study in Norway, The Bergen Child Study, data on sleep problems, chronic illness and potential confounders were assessed at ages 79 and 1113. RESULTS 295 of 4025 (7.3%) children ...

DERIVED FROM THE MARSIS RADAR SOUNDING DATA. J.Boisson, E.Heggy, S.M. Clifford, A.Frigeri, J.J. Plaut, W.M. Farrell, N. Putzig, G. Picardi, R. Orosei, P. Lognonné D. A. Gurnett, Institut de Physique du Globe de Paris, 94107 St Maur des Fosses, France ([email protected]) Lunar and Planetary Institute, Houston, TX 77058-1113, USA, University of Perugia, Perugia, Italy, Jet Propulsion Labora...

We have obtained optical spectra of seven stars in the old galactic cluster M 67 that are unusual sources of X-rays, and investigate whether the X-ray emission is due to magnetic activity or to mass transfer. The two binaries below the giant branch S 1063 and S 1113, the giant with the white dwarf companion S 1040 and the eccentric binary on the subgiant branch S 1242 show magnetic activity in ...

Methods First trimester (1113+6 weeks’ gestation)TA and TV Doppler measurements of UtA were performed prospectively in 87 and 54 women, respectively. All examinations were performed blindly, by 3 FMF accredited operators and repeated twice. Operator A performed all measurements, operator B and C, who were less experienced, performed 21 and 53 measurements, respectively. To assess generalizabili...

Introduction: Geologic mapping of MTM -30247, -35247, and -40247 quadrangles characterizes the upper reaches of Reull Vallis (RV) and illustrates its context in the history of the eastern Hellas region of Mars. Studies of RV provide constraints on the roles and timing of volatile-driven erosional and depositional processes and potential associated climatic changes. This study complements earlie...

Organic agriculture is of great significance to human health and the ecosystem, consumption organic food considered a kind pro-environment behavior urban residents. Taking value perception, safety awareness environmental as mediating variables, an analytical framework influence “organic” cognition on purchase intention was constructed in this paper, empirical test implemented by Ologit model ba...

In this paper, we consider minimization problems with a quasiconvex vector-valued inequality constraint. We propose two constraint qualifications, the closed cone constraint qualification for vector-valued quasiconvex programming (the VQ-CCCQ) and the basic constraint qualification for vector-valued quasiconvex programming (the VQ-BCQ). Based on previous results by Benoist, Borwein, and Popovic...

We describe a new approach to lossy compression of silhouettelike images. By a silhouette-like image we mean a bi-level image consisting of black and white regions divided by a small number of closed curves. We use a boundary detection algorithm to express the closed curves by chain codes, and we express the chains as one function of one variable. We compress this function using WFA over two le...

Tzvetana R. Lazarova and M aya Y. Velitchkova Central Laboratory of Biophysics, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., bl. 21, Sofia 1113, Bulgaria Z. Naturforsch. 48c, 500-503 (1993); received July 3/September 16, 1992 Purple Membranes, Apomembranes, Retinal, Membrane Fluidity, Spin Label Three spin-labelled fatty acids were used to detect the dynamics of lipid bilayer of apomem...