288 research outputs found
How Grants Improve Public Health in Sanger, California
This report analyzes public health needs in Sanger, California. Gathering research from the community and generating a background using Healthy People 2020, the project outlines potential grants the community could benefit from, now and in the future. The grant chosen focuses on parks, as physical activity is an important factor and need for the community
Electronic Cooling via Interlayer Coulomb Coupling in Multilayer Epitaxial Graphene
In van der Waals bonded or rotationally disordered multilayer stacks of
two-dimensional (2D) materials, the electronic states remain tightly confined
within individual 2D layers. As a result, electron-phonon interactions occur
primarily within layers and interlayer electrical conductivities are low. In
addition, strong covalent in-plane intralayer bonding combined with weak van
der Waals interlayer bonding results in weak phonon-mediated thermal coupling
between the layers. We demonstrate here, however, that Coulomb interactions
between electrons in different layers of multilayer epitaxial graphene provide
an important mechanism for interlayer thermal transport even though all
electronic states are strongly confined within individual 2D layers. This
effect is manifested in the relaxation dynamics of hot carriers in ultrafast
time-resolved terahertz spectroscopy. We develop a theory of interlayer Coulomb
coupling containing no free parameters that accounts for the experimentally
observed trends in hot-carrier dynamics as temperature and the number of layers
is varied.Comment: 54 pages, 15 figures, uses documentclass{achemso}, M.T.M. and J.R.T.
contributed equally to this wor
Analysis of a Putative Promoter in Mycobacteriophage JacoRen57
JacoRen57 is a cluster AB mycobacteriophage that infects Mycobacterium smegmatis mc²155. We recently reported on the characterization of a putative promoter in JacoRen57 using an mCherry reporter construct. This promoter is present in a gap upstream of a gene that is present in all AB phages. In all cases, these are forward genes immediately following a long series of reverse genes. The genes are most frequently identified as a RecA-like DNA recombinases but also as RepA by bioinformatics. To further analyze this putative promoter and gene product, NWC Molecular Genetics students cloned the RecA-like DNA recombinase into an E. coli expression vector with a TVMV removable N-terminal His-tag. They expressed and we purified the tagged protein and are using it to immunize Balb/c mice. We plan to use the antiserum to confirm RecA-like DNA recombinase expression patterns when JacoRen57 infects M. smegmatis
Geklimatiseerde dekstal opgestart!
In drie dekafdelingen in Raalte is onderzoek opgestart naar de mogelijkheden van recirculatie van stallucht, de effecten van klimaat op de productiviteit van zeugen en het effect van dikkere isolatie op het stalklimaat
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