objectives: to assess the effect of lactic acid (la) on microleakage of silorane-based composite restorations and methacrylate-based composites with self-etch and etch-and-rinse bonding systems. materials and methods: class v cavities were prepared in 120 extracted human teeth, divided into four groups and restored as follows: 1. silorane-based composite+p90 adhesive system (p90); 2. filtek z25...

Computer Science, Carnegie Mellon University, Education City, PO Box 24866, Doha, 24866, Qatar Computer Science, University of Illinois at Chicago, 851 S. Morgan St., Chicago, IL 60607, USA Psychology, University of Illinois at Chicago, 1007 W. Harrison St., Chicago, IL 60607, USA Computer Science, United States Naval Academy, 572M Holloway Rd. Stop 9F, Annapolis, MD 21402, USA Computer Science...

www.sciencemag.org (this information is current as of August 11, 2008 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/321/5890/851 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/321/5890/851/DC1 can be found...

BACKGROUND AND PURPOSE Diffusion-weighted (DW) imaging has limited spatial resolution, especially in the z direction. We decreased the section thickness of DW imaging to 3 mm to determine if this change improves the depiction of small infarcts and if it affects stroke diagnosis. METHODS We studied conventional (5-mm section thickness, 1-mm intersection gap) and thin-section (3-mm section thic...

A data warehouse (DW) is a large centralized database that stores data integrated from multiple, usually heterogeneous external data sources (EDSs). DW content is processed by so called On-Line Analytical Processing applications, that analyze business trends, discover anomalies and hidden dependencies between data. These applications are part of decision support systems. EDSs constantly change ...

Abstract Introduction Vaginal dryness is a frequent complaint, especially in post-menopausal women. The physiology underlying the production of vaginal lubrication response to arousing stimuli established; however, no current pharmacological agents successfully target mechanisms within this physiology. Previous research from our lab has demonstrated that female methamphetamine (meth) users expe...

PURPOSE Mountain trekking involves level, uphill, and downhill walking (DW). Prolonged DW induces damage to leg muscles, reducing force generating ability and muscle coordination. These increase risks for more serious injuries and accidents in mountain trekking, thus a strategy to minimize muscle damage is warranted. It has been shown that low-intensity eccentric contractions confer protective ...

Plasma concentrations of thyroxine (T4), triiodothyronine (T3) and chicken GH (cGH), together with hepatic 5'-monodeiodination (5'-D) activity, were measured in normal (Dw) and dwarf chick (dw) embryos at incubation d 18. An injection of 10 micrograms of ovine GH (oGH) raised plasma concentrations of T3 in Dw embryos after 1 and 2 h and stimulated hepatic 5'-D activity after 2 h. A non-specific...

A simple multi-residue method was developed for detecting and quantifying 33 analytes from 13 classes of antibiotics (tetracyclines (3), quinolones (7), penicillins (3), ionophore coccidiostats (7), macrolides (3), sulfonamides (1), quinoxalines (2), phenicols (2), lincosamides (1), diaminopyrimidines (1), polypeptides (1), streptogramins (1) and pleuromutilins (1)) in animal feeds. Extraction ...