On the basis of computer vision, this paper studied and developed an on-line detection system for pork freshness, which include the overall design of the system scheme, the hardware design and functions, the software functions and detection algorithm. The systematical hardware is composed of image acquisition unit, light source unit, control unit, drive transmission device and computer. For the...

The DNA sequences of three genes--celC, crr, and gutB--have been determined for each of 11 or 12 natural isolates of Escherichia coli from the ECOR collection. These genes encode the phosphoenolpyruvate-dependent phosphotransferase-system enzyme III proteins specific for beta-glucoside sugars (celC), glucose (crr), and glucitol (gutB), respectively. There is little evidence of recombination at ...

We have studied trehalose uptake in Salmonella typhimurium and the possible involvement of the phosphoenolpyruvate:carbohydrate phosphotransferase system (PTS) in this process. Two transport systems could recognize and transport trehalose, the mannose PTS and the galactose permease. Uptake of trehalose via the latter system required that it be expressed constitutively (due to a galR or galC mut...

Abstract: A popular approach in the investigation of the short-term behavior of a non-stationary time series is to assume that the time series decomposes additively into a long-term trend and short-term fluctuations. A first step towards investigating the short-term behavior requires estimation of the trend, typically via smoothing in the time domain. We propose a method for time-domain smoothi...

BACKGROUND The ability to perform a cognitive task while walking simultaneously (dual-tasking) is important in real life. However, the psychometric properties of dual-task walking tests have not been well established in stroke. OBJECTIVE To assess the test-retest reliability, concurrent and known-groups validity of various dual-task walking tests in people with chronic stroke. DESIGN Observ...

Bacteriophage P4 DNA replication depends upon the phage-encoded alpha protein, which has DNA helicase and DNA primase activity and can specifically bind to the replication origin (ori) and to the cis replicating region (crr). The P4 Cnr protein functions as a negative regulator of P4 replication, and P4 does not replicate in cells that overexpress cnr. We searched for P4 mutants that suppressed...

This paper proposes an efficient biometrics system based on palmprint. Palmprint ROI is transformed using proposed local edge pattern (LEP). Corner like features are extracted from the enhanced palmprint images as they are stable and highly discriminative. It has also proposed a distance measure that uses some geometrical and statistical constraints to track corner feature points between two pa...

In this paper we study Binomial Models with random time steps. We explain, how calculating values for European and American Call and Put options is straightforward for the Random{Time Binomial Model. We present the conditions to ensure weak{convergence to the Black{Scholes setup and convergence of the values for European and American put options. Di erently to the CRR{model the convergence beha...

Abstract Objective The objective of this article is to explore whether the use single or double ringed wound protectors (WP) in patients undergoing colorectal resection (CRR) associated with reduced risk surgical site infections (SSI). Method Analysis was conducted according PRISMA guidelines. With help expert local librarian, systematic search medical databases like MEBASE, MEDLINE and pubmed ...