Economists understand that mechanisms used by employers to resolve agency problems have surprising and profound consequences; when employers shape personnel policies to motivate workers, these efforts in turn affect organizational structures and such key labor market outcomes as wage inequality and involuntary unemployment. These insights emerge even in models that ascribe simple motives to emp...

Above-knee artificial limbs with wooden or metal sockets have been produced successfully for many years and these materials will doubtless continue to be used in the future. Circumstances arise, however, when it is necessary to find an alternative material that has similar properties to wood or metal, but which may be used by technicians who do not possess the long experience of the wood or met...

INTRODUCTION Bilateral semicircular canal aplasia is extremely rare; discovery, when the cochlear-vestibular system is normal and there is no hearing loss, is serendipitous. CASE REPORT Bilateral semicircular canal aplasia was serendipitously discovered in a 24-year-old male during assessment of unilateral mixed hearing loss with subnormal contralateral hearing. The deformity was isolated, wi...

Seen in long-term perspectiye the discovery of X-rays and their use as a diagnostic agent must surely rank as one of the major advances in medicine, Though of less immediate practical benefit than were either anaesthesia or antisepsis, the scientific importance was greater and even now, after more than fifty years, new techniques are still being evolved with resulting increases in knowledge. Am...

During the year 1915, I was stationed at a large post in East Africa in the crater-like depression of an isolated volcanic mountain. This mountain had been held for some months by the Germans, and when we occupied it, we found ourselves obliged for reasons of defence to place part of our troops upon the site of the old German camp. We had not been there for many days before we found that the si...

Seen in long-term perspectiye the discovery of X-rays and their use as a diagnostic agent must surely rank as one of the major advances in medicine, Though of less immediate practical benefit than were either anaesthesia or antisepsis, the scientific importance was greater and even now, after more than fifty years, new techniques are still being evolved with resulting increases in knowledge. Am...

Malignant gliomas are the most common and deadly primary malignant brain tumors. In vivo orthotopic models could doubtless represent an appropriate tool to test novel treatment for gliomas. However, methods commonly used to monitor the growth of glioma inside the mouse brain are time consuming and invasive. We tested the reliability of a minimally invasive procedure, based on a secreted lucifer...

relative cutaneous anergy often present in animals and man with inflammatory tuberculous lesions of the eye. This concept of the pathogenesis of a tuberculous lesion offers' obvious points for therapeutic attack on the disease. The first of these is enhancement of immunity, and nothing specific has been done as yet to stimulate local resistance artificially. The second is removal of the fatal t...

an excellent description of these by Dr. T. R. Lewis. Sheep and goats are however, in this country, very frequently infested by a parasitic animal of the same description; but, not knowing this, people who carefully eschew pork, and even avoid beef, eat their mutton without suspicion. This parasite is to be found in a large proportion of the sheep of the Punjab, and doubtless, also, in those of...

SINCE the introduction of vaccination as a therapeutic measure in 1796, between 200 and 300 cases of accidental infection of the eyelids, conjunctiva, or cornea have been reported. Doubtless more have remained unreported or unrecognized. In some cases the edges of the eyelids alone were involved, in others the conjunctival sac was involved, either primarily or secondarily from the eyelids. Corn...