This project focuses on the design, construction, and performance testing of a mechanical oil expeller press for extracting from various raw materials including coconut, mustard seed, sesame, groundnuts. The was also subject to structural analysis using simulation software ensure its safety efficiency. Unlike chemical centrifuge processes, which rely solvents or high-speed spinning extract oil,...

The Saccharomyces cereuisiae GALIMEL regulon genes are normally induced within minutes of galactose addition, but gal3 mutants exhibit a 3-5-day induction lag. We have discovered that this long-term adaptation (LTA) phenotype conferred by gal3 is complemented by multiple copies of the GALl gene. Based on this result and the striking similarity between the GAL3 and GALl protein sequences we atte...

On the cover: “Path: Homage to Edward Hopper” is an oil on canvas (24x36”) by Kamran Nikravan, MD. Edward Hopper painted the original in 1949 during the Depression. Dr Nikravan changed the “Tsunami” coming through the door to an open path to the sky to express my depth and gratitude for all that I have. Dr Nikravan is a Urologist at the West Los Angeles Medical Center. Dr Nikravan credits art w...

The Hopper XE6 system, NERSC’s first peta-flop system with over 153,000 cores has increased the computing hours available to the Department of Energy’s Office of Science users by more than a factor of 4. As NERSC users transition from the Franklin XT4 system with 4 cores per node to the Hopper XE6 system with 24 cores per node, they have had to adapt to a lower amount of memory per core and onn...

As clusters continue to grow in size and complexity, providing scalable and predictable performance is an increasingly important challenge. A crucial roadblock to achieving predictable performance is stragglers, i.e., tasks that take significantly longer than expected to run. At this point, speculative execution has been widely adopted to mitigate the impact of stragglers. However, speculation ...

hopper groups can be explained by a single underlying mechanism, that is, the development of a set to respond (industriousness) or of a set to not respond (laziness). Presumably the treadle group learned that reinforcement is contingent on some response and they entered the autoshaping situation with a set or expectation that a similar contingency still applied. The hopper birds responded less ...