The paper discusses the role of the intermediate boundary condition in the AF2 scheme used by Holst for simulation of the transonic full potential equation. We show that the treatment suggested by Holst led to a restriction on the time step and suggest ways to overcome this restriction. The discussion is based on the theory developed by Gustafsson, Kreiss, and Sundstrom and also on the von Neum...

The activity of the motor neuron pools of the protractor coxae muscle and of the thoracic part of the depressor trochanteris muscle during forward walking in the stick insect was investigated, and a spiking local interneuron, able to produce "endogenous bursting" and innervating both motor neuron pools, was identified. Extracellular recordings of the motor neurons innervating the protractor and...

In six inbred dogs with neonatally-induced coarctation hypertension, and in seven littermate controls, acute responses of proximal arterial pressure and plasma renin activity (PRA) to converting enzyme inhibitor (CEI; SQ 20,881, 0.5 mg/kg i.v.) were serially examined. Studies were performed at 2, 6, and 12 months post-aortic banding under sodium-replete and -deplete conditions. Both in normoten...

In six inbred dogs with neonatally-induced coarctation hypertension, and in seven littermate controls, acute responses of proximal arterial pressure and plasma renln activity (PRA) to converting enzyme inhibitor (CEI; SQ 20,881, 0.5 rag/kg i.v.) were serially examined. Studies were performed at 2, 6, and 12 months post-aortic banding under sodium-replete and -deplete conditions. Both in normote...

HE genetic factor responsible for the depression of the frequency of streptomycin-resistance transformations in Pneumococcus was first studied by GREEN (1959). He found that when Rx cells are exposed to a DNA transforming preparation (TP) containing genetic markers for erythromycin resistance and streptomycin resistance, approximately identical frequencies of transformation by both markers are ...

Ballistic tongue projection in toads is a remarkably fast and powerful movement. The goals of this study were to: (1) quantify in vivo power output and activity of the depressor mandibulae muscles that are responsible for ballistic mouth opening, which powers tongue projection; (2) quantify the elastic properties of the depressor mandibulae muscles and their series connective tissues using in s...

The temporalis, masseter, and depressor muscles of fifteen normal children were studied electromyographically to determine their activities during the position of resting tonus, during various movements of the mandible, and during the act of swallowing. Analysis of our results led to the following conclusions: 1. Resting tonus of the mandible does not depend on neuromuscular activity in the thr...

Background: To study the clinical profile of neonates with respiratory distress.
 Methods: A prospective was conducted on 100 cases. Term, pre-term and post-term babies both in-borns out-borns cases were included in study.
 Results: The majority 85.00% presented increased rate, chest drawings. had flaring alae nasi.
 Conclusion: Increased rate along drawing, nasi are presentation...