Adapted from Notes for Physics 695, Rutgers University. Fall 2013. Revised version used for ESI Lectures, at the ESI, Vienna, August 2014. Version: August 14, 2014

We present new VLA and Effelsberg observations of the radio galaxy 8C 0821+695. We have obtained detailed images in total intensity and polarization of this 2 Mpc sized giant. The magnetic field has a configuration predominantly parallel to the source main axis. We observe Faraday rotation at low frequencies, most probably produced by an ionized medium external to the radio source. The spectral...

Riedel (1960) recognized that after orthodontic treatment , the teeth tend to return to their original positions because the periodontal tissues have not had suf cient time to reorganize themselves. During this reorganization period , the teeth must be maintained in the position achieved orthodontically, by means of removable or  xed retention systems. When relapse is expected, a splint is of...

Mengesha Habte, Mezekir Wedi Hagereseb [Memoir of a Countryman], Tecumseh, 2021, vi + 393 pp., €29.90. ISBN 978-1-63752-695-8.

The beta-amyloid peptide (A beta), the major component of the senile plaques found in the brains of Alzheimer's disease patients, is derived from proteolytic processing of a transmembrane glycoprotein known as the amyloid precursor protein (APP). Human APP exists in various isoforms, of which the major ones contain 695, 751, and 770 amino acids. Proteolytic cleavage of APP by alpha- or beta-sec...

We quantitatively analysed compensatory head reactions of flies to imposed body rotations in yaw, pitch and roll and characterized the haltere as a sense organ for maintaining equilibrium. During constant velocity rotation, the head first moves to compensate retinal slip and then attains a plateau excursion (Fig. 3). Below 500/s, initial head velocity as well as final excursion depend linearily...

The aim of this study was to analyze the files of 695 consecutive patients operated on under general anesthesia for odontogenic cysts in an adult French teaching hospital for comparison with findings in world surveys. A retrospective survey of cysts of the jaws was undertaken at the Maxillofacial department, Pitié-Salpêtrière University Hospital, Paris, France. Data were retrieved from case not...