Eleven percent of the largest public U.S. firms are headed by the CEO who founded the firm. Founder-CEO firms differ systematically from successor-CEO firms. They have a higher accounting performance and a higher firm valuation. Founder-CEO firms invest more in R&D, have higher capital expenditures, and make more focused mergers and acquisitions. Moreover,… (More)
From December 1999 to April 2001, the greater Edmonton region had 61 cases of invasive meningococcal infection, two fatal. The outbreak was due to Neisseria meningitidis serogroup C, electrophoretic type 15, serotype 2a. Analysis of the strains showed that 50 of 56 culture-confirmed cases were due to a single clone and close relatives of this clone. This… (More)
Cell-free DNA (cfDNA) has significant potential in the diagnosis and monitoring of clinical conditions. However, accurately and easily distinguishing the relative proportion of DNA molecules in a mixture derived from two different sources (i.e., donor and recipient tissues after transplantation) is challenging. In human cellular transplantation, there is… (More)
DESCRIPTION A previously fit 21-year-old man accidently straddled a 2000 V pylon. His urine, collected 3 hours later, is shown in the figure.
DESCRIPTION A 12-year-old girl presented to the emergency department after waiting at a bus stop in winter.
As the process technology advances into the deep submicron era, interconnect plays a dominant role in determining circuit performance. Buffer insertion/sizing and wire sizing are the most effective and popular techniques to reduce interconnect delay and are traditionally applied to post-layout optimization. As the SIA technology roadmap predicts , however,… (More)