Tests were conducted to determine whether the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae), selects rough rice (Oryza sativa L. (Poales: Poaceae)) kernels with cracked hulls for reproduction when these kernels are mixed with intact kernels. Differing amounts of kernels with cracked hulls (0, 5, 10, and 20%) of the varieties Francis and Wells were mixed with intact ke...

Excessive mechanical loading or acute trauma to intervertebral discs (IVDs) is thought to contribute to degeneration and pain. However, the exact mechanisms by which mechanical injury initiates and promotes degeneration remain unclear. This study investigates biochemical changes and extracellular matrix disruption in whole-organ human IVD cultures following acute mechanical injury. Isolated hea...

This paper concerns the effect of friction on crack propagation for centrally cracked Brazilian disk under diametric forces by using a modified finite element method. It shows that mode II stress intensity factor decreases obviously with increase after is closed, while has no influence I and T-stress. Meanwhile, there are some significant influences due to change closed appropriate loading angl...

background: nontypeable haemophilus influenzae (nthi) is a common cause of respiratory tract disease and initiates infection by colonization in nasopharynx. the haemophilus influenzae (h. influenzae) hap adhesin is an auto transporter protein that promotes initial interaction with human epithelial cells. hap protein contains a 110 kda internal passenger domain called “haps” and a 45 kda c-termi...

The Flattened Brazilian Disk test was designed for measuring both the tensile strength and fracture toughness of rocks. Using cohesive zone modelling, we found that method is practically not suitable extracting toughness, while it works well in calibrating strength. flattened disk provides a very narrow window variation load during failure, <15%, insufficient to reflect change among different m...

PURPOSE Cholecystectomy in patients with an intact gallbladder after endoscopic removal of stones from the common bile duct (CBD) remains controversial. We conducted a case-control study to determine the risk of recurrent CBD stones and the benefit of cholecystectomy for prevention of recurrence after endoscopic removal of stones from the CBD in Korean patients. MATERIALS AND METHODS A total ...

First isolated from Cannabis in 1940 by Roger Adams, the structure of CBD was not completely elucidated until 1963. Subsequent studies resulted in the pronouncement that THC was the 'active' principle of Cannabis and research then focused primarily on it to the virtual exclusion of CBD. This was no doubt due to the belief that activity meant psychoactivity that was shown by THC and not by CBD. ...

Delta-9 tetrahydrocannabinol (Delta(9)-THC) and (-)-cannabidiol ((-)-CBD) are major constituents of the Cannabis sativa plant with different pharmacological profiles: (Delta(9)-THC activates cannabinoid CB(1) and CB(2) receptors and induces psychoactive and peripheral effects. (-)-CBD possesses no, or very weak affinity for these receptors. We tested a series of (+)- and (-)-CBD derivatives for...

BACKGROUND/AIMS Some common bile duct (CBD) stones recur after endoscopic stone extraction. Little information is available on the size and recurrence interval of recurrent symptomatic CBD stones or on ways to prevent recurrence. MATERIALS AND METHODS Between January 2007 and December 2011, consecutive 481 patients undergoing endoscopic extraction of CBD stones at a single institute were enro...