نتایج جستجو برای: 179 barand 456 mm
تعداد نتایج: 208538 فیلتر نتایج به سال:
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There is evidence to suggest that exposure of pregnant women to tobacco smoke is related to higher childhood blood pressure in their offspring. It is not well known whether this association is set in utero or by shared postnatal environments. The objective of this study was to assess the association between tobacco smoke exposure of pregnant mothers and blood pressure and heart rate of their ne...
We present evidence from BeppoSAX and XMM-Newton of extreme X-ray variability in the high luminosity radio-quiet quasar PDS 456, the most luminous known AGN at z < 0.3. Repeated X-ray flaring is found in PDS 456, over the duration of the 340 ksec long BeppoSAX observation. The X-ray flux doubles in just 30 ksec, whilst the total energy output of the flaring events is as high as 10 51 erg. Under...
We report on XMM-Newton spectroscopic observations of the luminous, radio-quiet quasar PDS 456. The hard X-ray spectrum of PDS 456 shows a deep absorption trough (constituting 50% of the continuum) at energies above 7 keV in the quasar rest frame, which can be attributed to a series of blue-shifted K-shell absorption edges due to highly ionized iron. The higher resolution soft X-ray RGS spectru...
OBJECTIVE Children admitted to hospital commonly require peripheral intravenous catheters (PIVCs) for treatment. This study sought to address a gap in the literature about current practice in the securement and dressing of PIVCs in paediatric acute care, and to ascertain the duration and failure of these devices. METHODS A prospective cohort study conducted at the Royal Children's Hospital in...
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En la Editorial Franciscanum 179 se hace una mención especial por conmemoración de los 50 años Licenciatura en Teología. Porteriormente presentan catorce artículos este número revista.
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