Biomedical subjects
Publications and source records attributed to E G Weber.
Experiences are presented of a method of improving lymph drainage by implantation of silicone tubing in cases of lymphoedema of the arm following treatment of breast cancer. The passive drainage of lymph from the arm to the abdominal fat leads to a reduction of volume of 20%. Detailed long term clinical results are described and the drainage of lymph is demonstrated.
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Among the pathological changes producing dysphagia, cysts are of only minor importance. Intramural pseudodiverticulosis of the esophagus as a consequence of cystic esophagitis with scarring of the submucosa and subsequent stenosis, has been observed more frequently in recent years. Congenital cysts are rarely diagnosed preoperatively. Their removal presents no technical problems. It should be remembered that esophageal cysts might be the reason for dysphagia.
In the newt, Notophthalmus viridescens, hypophysectomy results in progressive atrophy of the thyroid cells to the point of irreversible degeneration. After exclusive TSH-stimulation of hypophysectomized newts, increased endocytotic activity of the follicular epithelium is observed. Prolactin stimulation under the same conditions prevents atrophy but does not result in increased cell activity, as expressed by the reduced amount of microvilli and the lack of endocytotic activity. Combined TSH- and prolactin stimulation also results in cell activation, but the activation level of exclusively TSH-stimulated cells is not reached. Although prolactin prevents cellular atrophy and degeneration of the follicular epithelium, it reduces the TSH-induced activation of the thyroid epithelium.
Measurements were made of the correspondence between acoustic (declination) units and auditory (intonation) units in American English conversation in an attempt to relate these two levels of description. The results showed that 99% of the acoustic unit boundaries coincided with auditory unit boundaries, indicating that the acoustic cues of F0 reset, pause, and speaker change used in defining the acoustic units were perceived, verifying the validity of both types of analyses. However, the units differed in scope, with many more auditory units occurring than acoustic units. This result suggests that the common practice of assuming the 'intonational phrase' to be the primary domain of prosodic phenomena such as declination does not adequately account for our data of larger periods of speech. Both acoustic and auditory analysis are needed for a satisfactory description of intonation. The establishment of a methodological connecting link between the acoustic and auditory dimensions suggests that further comparisons of such different data types may yield guidelines for regularizing the relationship between the two levels.
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