The processes which are involved in the development of the normal outflow tracts of the ventricles are the following: The ostium bulbar torsion accounts for the concordant flow between the ventricles and the proximal conuses. The leftward shift of the ostium bulbi accounts for the partial overriding of the aorta over the left ventricle. The truncal rotation accounts for the twisted relationship...

background: finding the safe location of spinal cord for cerebrospinal fluid (csf) during surgical procedures is very important due to its various nature for each patient as well as its potential peripheral nervous system hazards. the aim of this study was to find the relationship between the location of conus medullaris (cm) and gender, age and body mass index (bmi) in order to minimize the po...

Abstract Non-perennial streams are widespread, critical to ecosystems and society, the subject of ongoing policy debate. Prior large-scale research on stream intermittency has been based long-term averages, generally using annually aggregated data characterize a highly variable process. As result, it is not well understood if, how, or why hydrology non-perennial changing. Here, we investigate t...

The strawman PASS design calls for the use of a CONUS beam for transmission between the supplier and the satellite and for fixed beams for transmission between the basic personal terminal (BPT) and the satellite. The satellite uses a 3m main reflector for transmission at 20 GHz and a 2m main reflector for reception at 30 GHz. The beamwidth of the reflector is 0.35°. To cover CONUS 142 fixed bea...

A 56-year-old man, a current smoker with a history of arterial hypertension and dyslipidaemia, was admitted to our department for a scheduled coronary angiography. Ten days earlier, the patient had been admitted to another hospital for an anterior myocardial infarction, treated with intravenous thrombolysis. The patient’s in-hospital course was reported to have been complicated by an episode of...

Body size is a key sexually selected trait in many animal species. If size imposes a physical limit on the production of loud low-frequency sounds, then low-pitched vocalisations could act as reliable signals of body size. However, the central prediction of this hypothesis--that the pitch of vocalisations decreases with size among competing individuals--has limited support in songbirds. One rea...

PURPOSE To determine the appearance of the ventriculus terminalis of the conus medullaris and the frequency with which it is seen on MR. METHODS Four hundred eighteen normal spine MR examinations were reviewed. RESULTS Eleven (2.6%) of 418 children, all younger than 5 years of age, demonstrated an ovoid, nonenhancing, smooth dilation of the central canal within the conus medullaris. Average...