standing the old. This is a reflection of the way evolution works, with some novelties being traceable as modifications of primitive conditions and others having origins that are much less obvious. As a result, the problems of novelty and homology have been deeply intertwined for the past century and a half. It is here, at the interface between these two great concepts of evolutionary biology, ...

NS&B149 Neuroethology: Sensory Basis of Animal Orientation and Navigation This course is about the sensory and neuronal processes underlying the ability of animals to orient in and move through their environments. We will consider the basic functions of sensory and nervous systems that underlie the remarkable abilities of animals to orient themselves in personal space, move through their home r...

it has provided particularly useful insights is the analysis of the function of membrane proteins, specifically with respect to their interactions with the surrounding lipid molecules. Models and experiments show that rather than being a passive bystander in the function of membrane-bound proteins, the membrane can at times have an essential role in determining the function of these proteins. C...

NS&B149 Neuroethology: Sensory Basis of Animal Orientation and Navigation This course is about the sensory and neuronal processes underlying the ability of animals to orient in and move through their environments. We will consider the basic functions of sensory and nervous systems that underlie the remarkable abilities of animals to orient themselves in personal space, move through their home r...

NS&B149 Neuroethology: Sensory Basis of Animal Orientation and Navigation This course is about the sensory and neuronal processes underlying the ability of animals to orient in and move through their environments. We will consider the basic functions of sensory and nervous systems that underlie the remarkable abilities of animals to orient themselves in personal space, move through their home r...

BACKGROUND Managing patients with heart failure (HF) is labor intensive, and follow-up is often inadequate to detect day-to-day changes that ultimately lead to decompensation. We tested the effect of an Internet-based telemedicine (T) system that provides frequent surveillance and increased communicate between HF patients and their provider on frequency of hospitalization in a cohort of patient...

BACKGROUND Fetal tachycardia often leads to cardiac failure, which in experimental settings can be prevented by direct fetal glucose-insulin administration. In this study, we hypothesize that similar effects can be obtained indirectly by inducing maternal hyperglycemia. METHODS AND RESULTS Systolic and diastolic indices (dP/dt(max) and tau) of left ventricular function were measured by use of...

OBJECTIVES Our purpose was to investigate the impact of short-lasting atrial fibrillation (AF) on the electrophysiological properties of the atria and pulmonary veins (PVs) in patients devoid of AF. BACKGROUND The presence of AF is associated with electrical remodeling processes that promote a substrate for arrhythmia maintenance in the atria, which has been termed "AF begets AF." However, it...