rf method is now a well-known tool for studying crustal and upper mantle structure when such a complete data set is available. we compute p receiver functions to investigate the upper mantle discontinuity beneath the northwest of iran. we selected data from teleseismic events (mb ? 5.5, 30 ?>? > 95?) recorded from 1995 to 2008 at 8 three component short period stations from tabriz telemetry sei...

Abstract Invited for the cover of this issue is Qinghua Gong, Guowei Zhou, and co‐workers at Qilu University Technology. The dial represents etching time SiO x yolk in NaOH solution brightness Chinese red lantern electrochemical performance composites. Read full text article 10.1002/chem.202003246 .

Front cover: Cover image: Reconstruction of the internal structures and mandibular arch a blackbelly lanternshark, Etmopterus lucifer based on micro-CT images. See M.A. Staggl colleagues, 'Head anatomy lantern shark wet-collection specimen (Chondrichthyes: Etmopteridae)', this issue.

In general, in the production of projection slides, one is limited to the use of s tandard lantern slide plates. If the original electron micrograph negatives vary in contrast, it is often difficult to produce, within an acceptable range of density, a series of slides for projection. In an a t tempt to overcome this difficulty, diazotype color films have been tested as an alternative to the sta...

The activity regenerating luciferin from the luminescent product oxyluciferin was found in the protein fraction of a lantern extract from Photinus pyralis. The protein, luciferin-regenerating enzyme (LRE), was purified to homogeneity by ammonium sulfate precipitation followed by successive column chromatography on Ultrogel AcA34, S-Sepharose FF, Q-Sepharose FF, TSKgel super Q 5pw and TSKgel G30...

The jaw apparatus of the regular echinoids is moved by a complex of muscles. Of these the largest and most accessible are the lantern retractor muscles which originate on the auricles and insert upon the pyramids which enclose the teeth. Preliminary experiments using Parechinus angulosus Mortensen showed that, while in this species these muscles could not be stimulated indirectly by way of elec...