detecting microbial contamination of milk using novel engineering techniques is very worthy. in current study, microbial contamination of uht milk packages was detected using ultrasonic sensors. milk packages artificially were inoculated to e. coli in four dilutions and three replications. monitoring of ultrasonic properties was performed by measuring amplitude and time delay factors. artificia...

in order to maintain the quality and increase the shelf life of fruits, many studies have been carried out in terms of the packaging specially applications of the nano-composite packages in the packaging. because of the low storage ability of the plum fruit, in this study, the effects of the four nano-composite packages and common polyethylene (as a control) were analyzed on maintaining quality...

objective: to identify the effects of community-based interventions on the neonatal health index in one district of tehran-iran. materials and methods: a community and healthcare center-based study was carried out from january 2011 through september 2014. the population of the study included newborns from mothers residing in the 4 th district of tehran, iran. demographic data of mothers and inf...

Caterpillar compaction NA compaction, say Ryan Case, YunPei Chang, Nicholas Cozzarelli, Carlos Bustamante, and colleagues (University of California, Berkeley, CA), may work via a cooperative caterpillar-like mechanism. The caterpillar is formed by multiple copies of condensin protein—in this case MukBEF—with each V-shaped condensin contributing two legs. Compaction occurs when the caterpillar’s...