Tuning gastropod locomotion: Modeling the influence of mucus rheology on the cost of crawling

Common gastropods such as snails crawl on a solid substrate by propagating muscular waves of shear stress on a viscoelastic mucus. Producing the mucus accounts for the largest component in the gastropod's energy budget, more than twenty times the amount of mechanical work used in crawling. Using a simple mechanical model, we show that the shear-thinning properties of the mucus favor a decrease in the amount of mucus necessary for crawling, thereby decreasing the overall energetic cost of locomotion.Comment: Corrected typo

Quaternary faulting in the New Madrid seismic zone in southernmost Illinois

U.S. Geological Survey, Department of the Interior, National Earthquake Hazards Reduction Program Award No. 1434-95-G-2525Ope

Bedrock geology of Brownfield Quadrangle, Massac and Pope Counties, Illinois

Relief shown by contours and spot heightsData sheet includes text, 2 col. cross sections, and 1 col. stratigraphic column with tableIncludes bibliographical references (p. 3 of text

Bedrock Geology of Paducah NE Quadrangle, Massac and Pope Counties, Illinois

Relief shown by contours"Geology based on field work by F. Brett Denny and W. John Nelson, 1995 and 1996.""Digital cartography by L. Verhelst and J. Domier, Illinois State Geological Survey.""Base map compiled by Illinois State Geological Survey ... ."Sheet 2 includes text, 1 stratigraphic column, 1 cross section, 1 figure, and referencesIncludes location map, index to adjoining quadrangles, and reference

Finite-Size Effects in a Supercooled Liquid

We study the influence of the system size on various static and dynamic properties of a supercooled binary Lennard-Jones liquid via computer simulations. In this way, we demonstrate that the treatment of systems as small as N=65 particles yields relevant results for the understanding of bulk properties. Especially, we find that a system of N=130 particles behaves basically as two non-interacting systems of half the size.Comment: Proceedings of the III Workshop on Non Equilibrium Phenomena in Supercooled Fluids, Glasses and Amorphous Materials, Sep 2002, Pis

Quaternary faulting in the New Madrid seismic zone in southernmost Illinois

U.S. Geological Survey, Department of the Interior, under USGS award number 1434-95-G-2525Ope

Profil Peternakan Babi di Kota Kupang dan Potensi Penularan Trichinellosis

Trichinellosis is a parasitic disease of humans caused by eating raw from domestic or game animals infected by Trichinella spp. Human trichinellosis contracted from commercial supplies of meat have been most often linked to infected pigs, wild boar, or horses. Trichinella is a nematode which has an atypical direct life cycle that does not involve stages developing outside of the host. This study was conducted to see the profile of pig farms in the city of Kupang and the potential transmission of trichinellosis. The data was derived from interview 60 farmers in 6 sub districts in city of Kupang by using a structured questionnaire and analyzed descriptively. The results of the questionnaire survey showed that many race of pig from a mixed race, the seeds come from traditional breeding. Feed rest of the home or restaurant are usually directly given to the pigs. The presence of rat in around of the cage often. All respondents were interviewed did not know or hear about trichinellosis disease which can be one cause of the spread of trichinellosis in city of Kupang

Bedrock topography of Murphysboro Quadrangle, Jackson County, Illinois

Relief shown by contours and spot heights"Geology based on field work by Russell J. Jacobsen, F. Brett Denny, and Gary W. Griffith, 2006-2007.""Digital cartography by Jane E.J. Domier, Shannon M. Geegan, and Steve M. Radil, Illinois State Geological Survey.""Base map compiled by Illinois State Geological Survey ... ."Includes location map and index to adjoining quadrangle

Bedrock geology of Murphysboro Quadrangle, Jackson County, Illinois

Relief shown by contours and spot heights"Geology based on field work by R. Jacobsen, B. Denny, and G. Griffith, 2006-2007.""Digital cartography by J. Domier, S. Geegan, and S. Radil, Illinois State Geological Survey.""Base map compiled by Illinois State Geological Survey ... ."Sheet 2 includes 1 stratigraphic column, 1 cross section, and 10 sectionsIncludes location map and index to adjoining quadrangle