BACKGROUND High-risk newborns are known to have higher than average utilization of services after discharge from the neonatal intensive care unit (NICU). Most studies on this subject report aggregate data over periods ranging from 1 to 3 years postdischarge. Little is known about events that are temporally close to NICU discharge. OBJECTIVES To characterize rehospitalizations within the first...

Prey-predator communication of alertness has been reported for Moorhens (Gallinula chloropus) and other species of birds. Because ability to flee is probably related to body condition, healthy potential prey may behave more conspicuously to send predators an unambiguous message. Moorhens have a contrasting rump patch that is flashed by rapid tail-flicking. During two winter months, we observed ...

A preorder on the line-of-sight (LOS) matrices in coherent multipleinput multiple-output (MIMO) Ricean fading channels is introduced. It is demonstrated that under this preorder, the information rate corresponding to zero-mean multivariate circularly symmetric Gaussian inputs of arbitrary covariance matrices is monotonic in the LOS matrix. This result implies the monotonicity of the information...

Heart rate variability, the change in the time intervals between adjacent heartbeats, is an emergent property of interdependent regulatory systems that operates on di!erent time scales to adapt to environmental and psychological challenges. This article briefly reviews neural regulation of the heart and o!ers some new perspectives on mechanisms underlying the very low frequency rhythm of heart ...

BACKGROUND Although fatty foods are commonly considered detrimental in patients with reflux disease, no objective data exist that substantiate this belief. AIMS To investigate the effect of fat on gastro-oesophageal reflux and lower oesophageal sphincter (LOS) motor activity. SUBJECTS Thirteen healthy subjects and 14 patients with reflux disease. METHODS Oesophageal pH, LOS, and oesophage...

Background—Although fatty foods are commonly considered detrimental in patients with reflux disease, no objective data exist that substantiate this belief. Aims—To investigate the eVect of fat on gastro-oesophageal reflux and lower oesophageal sphincter (LOS) motor activity. Subjects—Thirteen healthy subjects and 14 patients with reflux disease. Methods—Oesophageal pH, LOS, and oesophageal pres...

Multiple antennas facilitate the coexistence of multiple users in wireless communications, leading to spatial multiplexing and spatial division and to significant system capacity increase. However, this comes at the cost of very precise channel state information at the transmitters (CSIT). We advocate the use of channel propagation models to transform location information into (possibly incompl...

Neisseria gonorrhoeae lipooligosaccharide (LOS) undergoes antigenic variation at a high rate, and this variation can be monitored by changes in a strain's ability to bind LOS-specific monoclonal antibodies. We report here the cloning and identification of a gene, lsi-2, that can mediate this variation. The DNA sequence of lsi-2 has been determined for N. gonorrhoeae 1291, a strain that expresse...

BACKGROUND AND PURPOSE The relationship between in-hospital stroke-related medical complications and clinical outcome remains unclear. We examined whether medical complications were associated with length of stay (LOS) and mortality among stroke unit patients. METHODS Using population-based Danish medical registries, we performed a follow-up study among all patients with acute stroke admitted...

BACKGROUND Understanding the factors that influence the hospital length of stay (LOS) for patients with stroke will help in discharge planning and stroke unit management. We explored how intravenous thrombolysis (IVT) affects LOS in an acute-care hospital setting. METHODS We analyzed adult patients with ischemic stroke who presented within 48 h of onset from a hospital-based stroke registry. ...