A Lexicon, Hebrew, Chaldae, and English, compiled from the most approved sources, Oriental and European, Jewish and Christian ... cont. all the words with their usual inflexions ... as found in the Hebrew and Chaldee texts of the Old Testament ... to which are added an English index, alphabetically arranged ...

by Samuel Lee

Di fesṭzetzung wegin jidn : arois gigebene in Sankṭ Peṭersburg 13 april šenas 1835

Digitalisat der Ausg. Wilna, 1835

Die deutschen Juden als Soldaten im Kriege 1914-1918 : Eine statistische Studie

von Jacob Segall. Mit e. Vorw. von Heinrich Silbergleit

Maria Malibran, Hüftbild : il mio soggiorno in Venezia, forma per me un' epoca faustissima di mia vita, 31. Marzo 1835

Signatur des Originals: S 36/G04629

Volksversammlung in Heidelberg : Das ist mein Liebersohn an dem ich wohlgefallen habe

Bibliograph. Nachweis: Wolf, Sylvia: Politische Karikaturen in Deutschland 1848/49. Mittenwald 1982. – 1.55 Nr. 2

Christian Wilhem von Dohm

Willy Cohn

Deutsche Handelsgärtnereien : II. Die Handelsgärtnerei des Herrn Alb. Wagner in Gohlis bei Leipzig

W. Perring

Letters to a christian friend on the fundamental truths of Judaism

by Clementina de Rothschild. Transl. from the German [[Elektronische Ressource]]

Radiation dose reduction in postoperative computed position control of cochlear implant electrodes in lambs - An experimental study

OBJECTIVE Cochlear implants (CI) are standard treatment for prelingually deafened children and postlingually deafened adults. Computed tomography (CT) is the standard method for postoperative imaging of the electrode position. CT scans accurately reflect electrode depth and position, which is essential prior to use. However, routine CT examinations expose patients to radiation, which is especially problematic in children. We examined whether new CT protocols could reduce radiation doses while preserving diagnostic accuracy. METHODS To investigate whether electrode position can be assessed by low-dose CT protocols, a cadaveric lamb model was used because the inner ear morphology is similar to humans. The scans were performed at various volumetric CT dose-indexes CTDIvol)/kV combinations. For each constant CTDIvol the tube voltage was varied (i.e., 80, 100, 120 and 140kV). This procedure was repeated at different CTDIvol values (21mGy, 11mGy, 5.5mGy, 2.8mGy and 1.8mGy). To keep the CTDIvol constant at different tube voltages, the tube current values were adjusted. Independent evaluations of the images were performed by two experienced and blinded neuroradiologists. The criteria diagnostic usefulness, image quality and artifacts (scaled 1-4) were assessed in 14 cochlear-implanted cadaveric lamb heads with variable tube voltages. RESULTS Results showed that the standard CT dose could be substantially reduced without sacrificing diagnostic accuracy of electrode position. The assessment of the CI electrode position was feasible in almost all cases up to a CTDIvol of 2-3mGy. The number of artifacts did not increase for images within this dose range as compared to higher dosages. The extent of the artifacts caused by the implanted metal-containing CI electrode does not depend on the radiation dose and is not perceptibly influenced by changes in the tube voltage. Summarizing the evaluation of the CI electrode position is possible even at a very low radiation dose. CONCLUSIONS CT imaging of the temporal bone for postoperative electrode position control of the CI is possible with a very low and significantly radiation dose. The tube current-time product and voltage can be reduced by 50% without increasing artifacts. Low-dose postoperative CT scans are sufficient for localizing the CI electrode.