Cramps in the affected leg are quite common and persistent although sciatic pain may have disappeared completely. A small proportion of patients develop a true recurrent prolapse (prolapse from the same disc) months to years later. This varies in individual statistics, but is probably in the neighbourhood of 4 per cent. to 5 per cent. These recurrent attacks of sciatica, due to a further protru...

The Canadian ACE (Atmospheric Chemistry Experiment) mission is dedicated to the retrieval of a large number of atmospheric trace gas species using the solar occultation technique in the infrared and UV/visible spectral domain. However, two additional solar disk imagers (at 525 nm and 1020 nm) were added for a number of reasons, including the retrieval of aerosol and cloud products. In this pape...

Obscurin (also known as Unc-89 in Drosophila) is a large modular protein in the M-line of Drosophila muscles. Drosophila obscurin is similar to the nematode protein UNC-89. Four isoforms are found in the muscles of adult flies: two in the indirect flight muscle (IFM) and two in other muscles. A fifth isoform is found in the larva. The larger IFM isoform has all the domains that were predicted f...

Although cramp has been mentioned as a symptom by several writers on the subject of prolapsed intervertebral discs (Bradford and Spurling, 1941; O'Connell, 1943; Lenhard, 1947) no study has hitherto been made of its exact nature, frequency, and relationships. It was not until the routine follow-up of cases of sciatica, which had been treated surgically, was begun that it was noticed that the sy...

Introduction In veterinary medicine, intervertebral disk surgery is limited to the herniated intervertebral disk which may be situated at any level of the vertebral column, with surgical treatment differing according to the level. At the cervical level of the vertebral column, a ventral corpectomy is the technique of choice as the hernia is most often ventral. When the hernia is lateralized, a ...

We derive hydrostatic, radiative equilibrium models for passive disks surrounding T Tauri stars. Each disk is encased by an optically thin layer of superheated dust grains. This layer reemits directly to space about half the stellar energy it absorbs. The other half is emitted inward and regulates the interior temperature of the disk. The heated disk Ñares. As a consequence, it absorbs more ste...

the National Drugs Advisory Board in Dublin in March, 1968. A full report is being prepared. While the association of bulk sales of these aerosols to occasional asthma deaths appears established, the exact nature of causation is not known. There is a need for more basic research on the effect of isoprenaline in man. It may well be that certain asthmatics develop an idiosyncrasy to it rather tha...

There were one hundred and ninety seven patients who presented with back pain to an Athletes Clinic over four years. Their mode of presentation, investigations, diagnoses and treatments are analysed. The majority of patients were male and below 30 years of age. The average duration of symptoms prior to presentation, despite an easy access policy, was 42 weeks. Injury was usually related to six ...

Herniation of a thoracic disc in an acromegalic giant is reported. Degenerative changes in the spine in association with dorsal kyphosis, and the additional strain, resulted in the disc prolapse.