169 research outputs found
Dark neutrino interactions make gravitational waves blue
New interactions of neutrinos can stop them from free streaming in the early
Universe even after the weak decoupling epoch. This results in the enhancement
of the primordial gravitational wave amplitude on small scales compared to the
standard CDM prediction. In this paper we calculate the effect of dark
matter neutrino interactions in CMB tensor -modes spectrum. We show that the
effect of new neutrino interactions generates a scale or dependent
imprint in the CMB -modes power spectrum at . In the event
that primordial -modes are detected by future experiments, a departure from
scale invariance, with a blue spectrum, may not necessarily mean failure of
simple inflationary models but instead may be a sign of non-standard
interactions of relativistic particles. New interactions of neutrinos also
induce a phase shift in the CMB B-mode power spectrum which cannot be mimicked
by simple modifications of the primordial tensor power spectrum. There is rich
information hidden in the CMB -modes spectrum beyond just the tensor to
scalar ratio.Comment: 31 pages, 10 figures. Version published in Phys. Rev.
Calcium intake pattern among Japanese women across five stages of health behavior change
浜松医科大学博士(医学)doctoral医学系研究科thesi
Impacts of oyster cultures on nitrogen budgets in Hiroshima Bay, the Seto Inland Sea of Japan
The impact of oyster culture on the nitrogen budget was demonstrated for the northern Hiroshima Bay. The output from a simple two-layer box model and nitrogen measurements in the bay over a 1 year period were used to estimate the nitrogen budget in the northern Hiroshima Bay (NH). The annual dissolved inorganic nitrogen (DIN) budgets indicated that all input terms to the northern Hiroshima Bay were equivalent to 22±7.8 ton N d-1, whereas DIN export to the central part of the bay was equivalent to 14±13 ton N d-1. These results suggest that a significant part of DIN input is consumed by phytoplankton and converted into the particulate form in the NH region. Estimated filtration rates of cultured oysters (7.3 ton N d-1) suggested that oyster cultures play a significant role for removing the particulate N from the water column in Hiroshima Bay. In addition, the amount of nitrogen harvested as oyster products was about 0.66 ton N d-1, which is about 6% of daily terrestrial DIN input into the NH region. The removal rate through oyster harvesting is five times higher than that by fishing activities, suggesting that oyster culture plays a significant role on the recycling of nitrogen from Hiroshima Bay to the land.departmental bulletin pape
Disruption Management for Commercial Aviation
Airlines are constantly facing operational disruptions such as reduced airport capacity because of bad weather or strikes, unexpected aircraft unavailability due to mechanical failures, and delayed or cancelled flights. In view of this, ROADEF organized a worldwide challenge to explore the problems encountered in real world airlines when disruptions happen and find approaches to tackle them. In this paper, a new continuous time aircraft routing model is developed which can minimize aircraft delay cost accurately and efficiently handle all types of disruptions encountered in ROADEF. Applying a new decomposition algorithm, near optimal solutions for aircraft routing can be obtained. A passenger re-accommodation model is solved subsequently using the results from the aircraft routing model as input. Competitive results are obtained applying the proposed approach to instances provided by ROADEF.departmental bulletin pape
Samuel Carter
26-1ClaimsReport : Claim of of S. Carter. [373] Creek Indians in West Flordia; 1837.1840-15
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