wrapped around a histone protein core. Covalent modification of histones is one of the primary epigenetic mechanisms for controlling gene expression. Eric B. Keverne et al. introduce the Epigenetic Changes in the Developing Brain: Effects on Behavior Sackler Colloquium, which brings together experts in epigenetic chemistry and behavioral neuroscience to better understand the influence of epigen...

The stickiness of a gecko’s foot comes from tiny hairlike structures that attach and detach when rubbed along a surface. As reported on page 1246, Metin Sitti and co-workers take inspiration from the structures and control of the gecko’s foot to create arrays of angled elastomeric microposts. A single micropost is isolated and through pressing and dragging it is used to pick-and-place microscal...

24Boyse, E. A., L. J. Old, G. Geering, and E. Stockert, unpublished observations. 25 Cells from 4 cases of human leukemia (acute leukemia in a child, acute myeloid leukemia, chronic myeloid leukemia, and chronic lymphatic leukemia) were obtained through the courtesy of Dr. B. Clarkson, Dr. L. Murphy, and Dr. C. Tan of Sloan-Kettering Institute. These cells did not acquire sensitivity to Rausche...

This article demonstrates the simulation of an electrically large antenna. The design and numerical results are courtesy and permission of Chelton Antennas, France. The antenna operates at 8 GHz and was simulated using the CST MICROWAVE STUDIO® (CST MWS) Transient Solver which is, as a result of its efficient memory scaling, ideal for such electrically large structures. In this case, the antenn...

Special Care and Treatment of Mental Defectives and Sexual Offenders in New Zealand. Wellington. 1925. Is. A copy of this Report, to which we referred in our July issue, has now reached us from Wellington, through the courtesy of the Acting Director-General of Health. The Committee dealt separately with the two classes of persons named, as being not necessarily identical, and we only propose to...

Acknowledgement: The ASN project is granted in part by the Collaborative Research Center (Sonderforschungsbereich) SFB 374 through the DFG (Deutsche Forschungsgemeinschaft). Several Institutes from the University of Stuttgart and Fraunhofer-Gesellschaft as well as DaimlerChrysler are in this project cooperating. ISBN 0-85825-788-2, pp. 636-637". As a courtesy to the publisher, this paper may no...

enclose a photograph of two posters which, for the last month, have been displayed by courtesy of the clergy and wardens of St. Paul's Church, immediately facing one of the busiest thoroughfares in this city. The poster was designed by Mr. A. A. Black, of Messrs. Arthur A. Black, Ltd. (hon. director of our Publicity Service). The space and the posting were provided without cost for the hospital...

Immunofluorescence sections of cells embedded within a micropatterned collagen gel. Cells generate forces within a tissue that can feedback to regulate the accumulation of cytoskeletal proteins such as actin (green) and structural matrix proteins such as fibronectin or tenascin C (red). These forces can be measured using elastomeric cantilevers (white) that deflect in response to tissue forces....

We describe an entry in a twelfth century monastic chronicle, compiled and composed by Gervase of Canterbury (c. 1145–c. 1210), which gives credible description ball lightning. It predates the earliest known report phenomenon from England nearly 450 years. The meteorological descriptions Gervase's 1195 are examined context purpose chronicle we compare them with modern reports (Image courtesy Mi...

Cell Tracking In article number 2207626, Jeff W.M. Bulte, Chao Wang, and Ali Shakeri-Zadeh review the occasional adverse effects encountered with magnetic labeling of cells for in vivo cell tracking using resonance imaging (MRI) particle imaging. Mesenchymal stem (MSCs) are abundant mannose residues on their membrane. Using mannose-sensitive chemical exchange saturation transfer MRI, MSCs is no...