Hypertrophic pyloric stenosis (HPS) is the principal disease to consider in neonates presenting with frequent projectile vomiting and poor weight gain. Ramstedt pyloromyotomy is commonly used for the surgical treatment of HPS. The present study investigated the efficacy of nonsurgical medical treatment using intravenous administration of atropine and the examined the clinical course and results...

In this paper, I will describe various methods for defending against airborne projectiles. This includes tracking mechanisms for following objects in three dimensional space and predicting what paths they will take. In addition, methods of calculating interception trajectories and the factors involved will be discussed.

While projectile injuries are not uncommonly encountered in veterinary practice, many clinicians are not very familiar with the various weapons and projectiles that may be involved or with the types of injuries that can occur. Whether or not an individual has an interest in firearms, a basic knowledge of projectiles and ballistics can help a clinician to predict the types of injuries expected i...

Projectile motion is a fundamental concept in basic physics courses. The often used simplified calculations, where air resistance is neglected, are obviously not relevant for many real life events. Using a video camera and computer software, students can investigate the influence of air resistance on for instance the trajectory of a football. The video sequences are digitised and the xand y-pos...

A 44-year-old man was admitted to our hospital because of melena with a hemoglobin of 4.3 g/dL. He denied use of aspirin, non steroidal anti-inflammatory drugs or any other medication and his medical history was unremarkable. However, he had been subjected to a laparoscopic adjustable gastric banding (LAGB) operation in 2007 for the treatment of morbid obesity. During the emergency esophagogast...

This paper deals with so-called Ultra-Peripheral Collisions (UPCs) of heavy ions[ 1, 2]. These can be defined as collisions in which no hadronic interactions occur because of the large spatial separation between the projectile and target. The interactions are instead mediated by the electromagnetic field. Two types of ultra-peripheral collisions can be distinguished: purely electro-magnetic int...

The work shows computational results of the effect of a simplified mathematical model of the flight dynamics of a spin-stabilized projectile on the accuracy and speed of calculation parameters for the projectile trajectory (in the entire range of operating quadrant elevation of the barrel and possible perturbations of the conditions firing) to determine an appropriate mathematical model for the...

We will briefly present here a collaboration work that has recently started in the frame of the GSI Heavy Ion Radiotherapy project. The motivation of this work is to obtain valuable and systematic data of the ion-induced electron emission in condensed matter, especially emission patterns for slow electrons in terms of direction and energy and their dependencies on target density, projectile mas...

We have measured energy distributions of electrons emitted from clean aluminum surfaces by 20 keV/amu H‡, He‡ and He projectiles. Ratios of energy distributions obtained from two types of projectiles carry information on differences in the electron excitation collisions. We discuss these di€erences in terms of screening of the projectile by valence electrons, Auger capture and projectile ioniza...