4,122 research outputs found
Recent Results from the K2K Experiment
The K2K experiment has collected approximately half of its allocated protons
on target between June of 1999 and July of 2001. These proceedings give a short
introduction to the experiment and summarize some of the recent results.Comment: Invited talk at the Seventh International Workshop on Tau Lepton
Physics (TAU02), Santa Cruz, Ca, USA, Sept 2002, 7 pages, LaTeX, 7 eps
figures. PSN TH0
Why understanding neutrino interactions is important for oscillation physics
Uncertainties in knowledge of neutrino interactions directly impact the
ability to measure the parameters of neutrino oscillation. Experiments which
make use of differing technologies and neutrino beams are sensitive to
different uncertainties. Several experimental and theoretical issues are
reviewed.Comment: Proceedings prepared for the Fifth International Workshop on
Neutrino-Nucleus Interactions in the Few-GeV Region (NuInt07), May 30-June 2,
2007. Proceedings to be published by the AIP (6 pages
The prevalence of BANAâhydrolyzing periodontopathic bacteria in smokers
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/99012/1/j.1600-051X.1999.tb02526.x.pd
Use of Dredged Material for Oyster Habitat Creation in Coastal Virginia
Dredging can have a beneficial effect on oyster habitat when the placement of the dredged material is effectively managed to help provide the bottom structure necessary to develop an oyster reef. Construction and maintenance of the Waterway on the Coast of Virginia (WCV) by the U. S. Army Corps of Engineers (Corps) has provided a number of examples of this process, both serendipitous and deliberate. The historical development of reefs that evolved from the random overboard placement of dredged material and the subsequent leasing of these areas for oyster cultivation is reviewed. A monitoring plan for the development of a reef in Swash Bay using maintenance dredging material is also described including pre- and post-dredging hydrographic surveys, surface sediment distributions, and shellfish surveys.
After one year, the benthic communities at the recently used placement site, the historical placement site and an unimpacted area in Swash Bay were compared using the Benthic Assessment Method (BAM) to determine short-term impacts. The historical and unimpacted sites had very similar values while the recently used site was somewhat lower. Consequences of continued success in developing oyster reefs in close proximity to a dredged channel are addressed with a suggested management plan that involves rotating the placement among a number of sites. This would allow for the continued maintenance of both the channel and the adjacent oyster reefs.https://scholarworks.wm.edu/vimsbooks/1090/thumbnail.jp
Discovery of Molecular Gas in the Outflow and Tidal Arms around M82
We present the first fully sampled map of 12CO (1-0) emission from M82
covering the entire galaxy. Our map contains a 12 x 15 kpc^2 area. We find that
extraplanar CO emission, previously reported at short distances above the
galactic plane, extends to heights of up to 6 kpc above the disk. Some of this
emission is associated with tidal arms seen in HI, implying either that M82
contained substantial amounts of molecular gas in the outer disk, or that
molecular gas formed after the tidal features. CO emission along the direction
of the outflow extends to distances of 3 kpc above and below the disk. At this
distance, the line is shifted in velocity about 100 km/s, and has the same
sense as the galactic outflow from the central starburst. This implies that
molecular gas may be entrained into the outflow.Comment: 4 pages, 6 figures. Uses emulateapj5. Accepted by ApJ Letter
Boosting water oxidation through in situ electroconversion of manganese gallide: an intermetallic precursor approach
For the first time, the manganese gallide (MnGa4) served as an intermetallic precursor, which upon in situ electroconversion in alkaline media produced highâperformance and longâtermâstable MnOxâbased electrocatalysts for water oxidation. Unexpectedly, its electrocorrosion (with the concomitant loss of Ga) leads simultaneously to three crystalline types of MnOx minerals with distinct structures and induced defects: birnessite ÎŽâMnO2, feitknechtite ÎČâMnOOH, and hausmannite αâMn3O4. The abundance and intrinsic stabilization of MnIII/MnIV active sites in the three MnOx phases explains the superior efficiency and durability of the system for electrocatalytic water oxidation. After electrophoretic deposition of the MnGa4 precursor on conductive nickel foam (NF), a low overpotential of 291â
mV, comparable to that of preciousâmetalâbased catalysts, could be achieved at a current density of 10â
mAâcmâ2 with a durability of more than five days.DFG, 390540038, EXC 2008: UniSysCatTU Berlin, Open-Access-Mittel - 201
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