purpose:dental shade guides are commonly used for color determination and should be disinfected and sterilized. the purpose of this study was to evaluate the color change of vita 3d master shade tabs after disinfection and sterilization. material and methods:overall, 98 samples (shade tabs) were randomly selected from 14 new, unused vita 3d sets, including the following shades: 2m1, 3l1.5, 3m1,...

background: pancreatitis is most common complication of post-ercp and needs to admission at least for one day. the purpose of this study was to assess the efficacy of guide wire for better common bile duct (cbd) cannulation for reducing post-ercp pancreatitis. methods: from april 2010 through march 2011, the patients who needed ercp and referred to shahid beheshti and rouhani teaching hospital ...

Motivated by the problem of storing coloured de Bruijn graphs, we show how, if we can already support fast select queries on one string, then we can store a little extra information and support fairly fast select queries on a similar string.

The formation of new neurons (neurogenesis) results from the complex interplay of many variables: cell proliferation, migration, cell fate choice, and survival. Recent papers identify factors involved in each of these aspects of neurogenesis and indicate how these variables may be integrated during development and adulthood. This recent work includes the report of a kinase that controls cell di...

GWAS: ‘‘G-whiz!’’ or ‘‘GWAShed-up’’? Genome-wide association studies (GWASs) link single-nucleotide variations in the human genome to a complex trait. Over the past 4 years, these ground-breaking studies have identified almost 1000 alleles increasing an individual’s risk for developing common diseases, such as cancer and obesity. However, these variants often explain only a small portion of the...