We investigated the nature of color and luminance processes under threshold and suprathreshold conditions in normal trichromatic observers. Detection and discrimination contours as well as threshold-vs-contrast (Tvc) functions were measured in the Derrington-Krauskopf-Lennie (DKL) color space using a masking paradigm. Such contours revealed substantial threshold asymmetries along the three card...

BACKGROUND To evaluate the association between the isolated single umbilical artery (iSUA) and perinatal outcomes, including pregnancy outcomes and perinatal complications. MATERIAL AND METHODS We performed a meta-analysis of 15 eligible studies regarding the relationship between the iSUA and perinatal outcomes, including gestational age at delivery, nuchal cord, placental weight, small for ges...

In this paper, we present the concept and design of a time-to-voltage converter (TVC), and demonstrate its application to on-chip phase-locked loop (PLL) jitter measurement. The TVC operates in an analog, continuous mode without using a sampling clock. It compares the signal under measurement with a reference signal by charging and discharging a capacitor. First, the low-frequency reference sig...

BACKGROUND Microbiological standards within pork slaughter processing plants in the European Union are currently governed by Commission Regulation (EC) 2073/2005, which describes detailed performance criteria at specific stages of the procedure (following carcass dressing and before chilling) for total viable counts (TVC), Enterobacteriaceae (EB) and Salmonella spp. In this study, 95 carcasses ...

There is a demand by certain ethnic consumer groups in the United Kingdom for skin-on, singed carcasses, primarily from older sheep, but their production is illegal under current EU legislation. The aim of this study was to devise a protocol to produce carcasses having the desired 'smoked' colour and odour and an acceptable microbiology. A successful result could form the basis of a case to rev...

La thrombophlébite cérébrale (TVC) est une cause non négligeable des accidents vasculaires cérébraux avec une grande diversité de leur présentation Clinique source d'errance et de retard thérapeutique. Nous rapportons l'observation d'une patiente présentant une TVC révélée par une hémorragie méningée. Le diagnostic a été suspecté à l'artériographie réalisée dans le cadre du bilan étiologique et...

Storage tests under different temperatures (2, 4, 10, and 15°C) were conducted to identify the best predictor variable that is most effective to explain the loss of the shelf life and quality of modified atmosphere packed (MAP) poultry, and constitutes the basis for the prediction of the remaining shelf life. The samples were packed in 70% O2 and 30% CO2, which is the common used gas atmosphere...

BACKGROUND Since air can play a central role as a reservoir for microorganisms, in controlled environments such as operating theatres regular microbial monitoring is useful to measure air quality and identify critical situations. The aim of this study is to assess microbial contamination levels in operating theatres using both an active and a passive sampling method and then to assess if there ...

OBJECTIVE To examine the effectiveness of four mass media campaigns on calls to a national Quitline by Māori (the indigenous people of New Zealand). METHODS Monthly Quitline call data and calls within one hour of a television commercial (TVC) being shown were analysed for the 2002-2003 period. Data on target audience rating points (TARPs) and expenditure on TVCs were also used (n = 2319 TVC p...