Spatial distribution of various types of bulbar respiratory neurons in the rabbit

Summary In anesthetized rabbits, the burst activity of 277 single respiratory neurons was recorded extracellularly. The neurons were classified according to their spike incidence distribution within the respiratory cycle and to their response to lung distension or collapse ( or type). About one third of the neurons found in all animals were located at the level of the caudal end of the promontorium gliosum, widely scattered over the bulbar cross-section. More rostrally the units were located within a dorsal area neighbouring the tractus solitarius, more caudally within a ventral field surrounding the nucleus ambiguus. Most of the inspiratory neurons (the most frequently encountered type) were found within an antero-medial region of the medulla, extending down to about two thirds of its depth. Most of the inspiratory-expiratory units were found within an intermediate zone extending from antero-dorsal to postero-ventral. Most of the expiratory cells were found postero-ventrally. Most of the expiratory-inspiratory neurons (the rarest type) were again found within an antero-medial region at an intermediate depth. The neurons were located in the rostral and the units in the caudal part of the medulla. The average proportion of respiratory neurons to non-respiratory units was estimated as about 1:36 and the total number of bulbar respiratory neurons as 500 on each side.     

über Chemische und Kolloidchemische Prozesse,Welche Hypertrophie und Atrophie des Skelett- und Herz-Muskels Begleiten

Ohne ZusammenfassungVortrag, gehalten am 12. November 1929 im Naturhistorisch-Medizinischen Verein zu Heidelberg.     

Über die Ammoniakbildung der Niere

Ohne ZusammenfassungAusgeführt mit Unterstützung der Notgemeinschaft der Deutschen Wissenschaft.     

Julius Raecke

Ohne Zusammenfassung     

Uebersicht über die in der Psychiatrischen und Nervenklinik zu Kiel in den Jahren 1901–1910 einschl. behandelten und begutachteten Marineangehörigen

Ohne Zusammenfassung     

Delirium tremens

Ohne ZusammenfassungZum Schluss erfülle ich die angenehme Pflicht, meinem hochverehrten Chef, Herrn Geheimrath Professor Dr. Siemerling für die Anregung zu dieser Arbeit, die Ueberlassung des Materials und die mir stets bewiesene Antheilnahme und Förderung bei der Ausarbeitung meinen aufrichtigsten Dank auszusprechen.     

64-Slice spiral computed tomography of the coronary arteries: dose reduction using an optimized imaging protocol including individual weight-adaptation of voltage and current–time product

Radiation dose and image quality were compared between a standard protocol (40 patients, group A) and a weight-adapted protocol of voltage and current–time product (44 patients, group B) using 64-slice coronary multidetector computed tomography (MDCT). Effective dose estimate was lower by 37% in all patients of group B (9.2 ± 2.5 mSv) compared with group A (14.6 ± 2.3 mSv, P < 0.0001). Group B patients with a small body mass index (BMI) benefited most with a dose reduction of 53% (6.7 ± 1.5 mSv in group B versus 14.1 ± 1.8 mSv in group A, P < 0.0001). Moderate reductions of 32% and 20% were achieved for patients with a medium and large BMI, respectively. Reduction in radiation dose did not affect the image quality as assessed by image noise, signal-to-noise ratios, and number of coronary segments with good diagnostic image quality. Individual weight-adaptation of voltage and current–time product significantly reduces the radiation dose without loss of image quality.