Quantitative estimates of plasmalemma invaginations in plasmodial veins of Physarum polycephalum were made under different conditions of nutrition. Pronounced differences were observed dependent on the nutritional content of the substrate. There was a decided increase in the number of plasmalemma invaginations in plasmodial veins grown on substrates containing absorbable food substances compare...

UNLABELLED Dens invagination is a developmental anomaly requiring specific treatment approaches. Oehler's Type III dens in dente, extends into the root and perforates at the apical area or lateral surface of the root. In this case endodontic treatment of the invaginated tooth was carried out through the central lumen of the invagination with calcium hydroxide without manipulation of the main pu...

Together with echinoderms and chordates, hemichordates constitute the third major group of the deuterostomes, which share a number of common developmental features. The Brachyury gene is responsible for the formation of notochord, the most defining feature of chordates. Therefore, isolation and characterization of the hemichordate homolog of Brachyury is key to understand the origin and evoluti...

exposition and so satisfying in its detail, that we looked forward with pleasure to the completion of the work. We regret to observe that this belated second part does not come up to our anticipations. The first two chapters deal with prolapse and invagination of the rectum. Some nice verbal distinctions are made in the varieties of prolapse, but it is not sufficiently insisted on that each of ...

cervical disease is variable, but common, and has been observed in up to 90% of rheumatoid arthritis patients.1 However, the incidence of symptoms is less than the observed objective radiographic pathological changes.2,3 Basilar invagination can be seen in isolation or in combination with other instabilities. Although it occurs secondary to erosive changes in the atlantoaxial and occipitoatlant...

Atlanto-axial and lower cervical subluxations are frequently present in rhematoid arthritis and ankylosing spondylitis. Vertebral erosions, particularly of the odontoid process, can often be demonstrated. Rheumatoid involvement of the occipito-atlanto-axial joints may cause a vertical translation of the cervical spine with respect to the skull; at times, this is associated with true basilar inv...