Abstract Much stone sculptural and architectural heritage is crumbling, especially in intense tropical environments. This exemplified by significant losses on carvings made of tuff at the Classic Maya site Copan. Here we demonstrate that Copan primarily decays due to stress generated humidity-related clay swelling resulting spalling material loss, a damaging process appears be facilitated micro...

hairball in a urethral diverticulum has rarely been reported. these hairballs are usually formed in the diverticulum coated with a hair bearing epithelium and can lead to urinary obstruction or infection. using laser is a safe way to ablate such stones.

Gabriel Taubin Brown University Holly Rushmeier, who’s served as associate editor in chief (AEIC) for special issues since 2007, has recently been appointed co-editor in chief of Eurographics’ Computer Graphics Forum, effective May 2010. Owing to her increased responsibilities and numerous other commitments, Holly has decided she’ll be unable to continue serving effectively in her current CG&A ...

In recent years, Pillared InterLayered Clays (PILCs) have been widely used in several applications; in particular in adsorption and catalysis. The research interest in this family of solids has increased considerably. Clay minerals provide distinct nanometer-scaled layers and interlayers for engineering them as active catalysts. As such, strategic design and preparation has led to a variety of ...

During the Prehistoric period, Human is used tools that helped him in process of cutting plants or hunting animals, and then he developed his a manner suitable for their use became variety, among those sickle even after emergence agriculture. It continued to be despite different available raw materials throughout chronology ages. Sickles began since stone ages before agriculture until now. As i...

1779 Soil Sci. Soc. Am. J. 71:1779–1787 doi:10.2136/sssaj2006.0340 Received 29 Sept. 2006. *Corresponding author (nbc@ufl .edu). © Soil Science Society of America 677 S. Segoe Rd. Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storag...

Stone columns are being used to reduce soft soil settlement and increase load-carrying capacity. Since there is inadequate lateral support from the local native soil, undergoes excessive under vertical loading. This issue effectively resolved by suitably encasing stone column material geosynthetic with significant axial stiffness, which provides required additional confinement reported in liter...