T HAS BEEN NOTED by several authors that in uropepsin determination a major proportion of the total activity is due to conversion of pepsinogen to pepsin, whereas a small proportion of the activity obtained is due to some system other than pepsin. As a result of this, in the quantitative determination of uropepsin some specimens give results which are erroneously high. Several methods for deter...

The authors regret that the computer code of Experiment 2 of this study, reported in Fig. 2 of the paper, contained an error. Specifically, in a proportion of the test sequences (see Fig. 2) the order of trials 11 and 12 was accidentally swapped, with the target on trial 11 having the intervening color and the target on trial 12 having the build-up color, instead of the other way around. This m...

spaghetti samples were prepared by replacing wheat flour with defatted soy flour (dsf) at 0, 10, and 20% levels (w/w). each sample had 4% gluten. in addition, xanthan gum was added at three levels (0.0, 0.2, and 0.4%) to spaghetti dough containing 20% soy flour as a modifying agent. samples were extruded at 35 or 50oc and dried at, respectively, 52oc for 21h or 72oc for 6 hours. the color, prot...

Hummingbird flowers are typically red in color but the reasons for this are not well understood. Relatively few studies have examined hummingbird flower color preferences under natural conditions in which flower color varies within a species. We recorded hummingbird visitation rates to flowers that vary in color from yellow to red in a natural hybrid population between redand yellow-flowered Mi...

color -blindness is the inability to perceive differences between some color that other people can distinguish. using a literature search , the results indicate the prevalence of color vision deficiency in the medical profession and its on medical skills. medical laboratory technicians and technologists employees should also screen for color blindness. this research aimed to study color blindne...

Winding is a key process in the manufacturing process of textile industry. The normal and effective operation of winding process plays a very important role on the textiles’ quality and economic effects. At present, a large proportion of bobbins which collected from winder still have yarn left over. The bobbin recycling is severely limited and quick running of winder is seriously restricted, th...

Although color-opponent neurons appear to subserve color vision, precisely how these cells encode hue is still not clear. Single-unit, extracellular recordings from the rainbow trout optic tectum were made in order to examine the possible role of action potential timing in coding chromatic stimuli. We found that color-opponent units can exhibit differences in response latency which are a functi...