137 research outputs found
ECONOMIC EFFECTS OF COPPER-NICKEL DEVELOPMENT IN NORTHEAST MINNESOTA
Computer simulations of industry gross output, employment and earnings changes associated with alternative copper-nickel development scenarios are presented in this report. The direct and indirect economic effects of seven development scenarios are projected for a mining impact Study Area in St. Louis County, Minnesota.Community/Rural/Urban Development, Resource /Energy Economics and Policy,
ECONOMIC EFFECTS OF MINNESOTA PEATLAND DEVELOPMENT
Existing peatland development and future uses for peat are described and evaluated in this report. Scenarios for future development of the study area peat industry are described in terms of employment, earnings, capital investment, and value of production. Forecasts of the potential impacts of peatland development on regional industry production, employment, earnings, and population are presented. These impacts are determined by using SIMLAB, an acronym for a regional socio-economic computer model developed at the University of Minnesota for quantitative analysis of the direct, indirect and induced socio-economic effects of events like peatland development.Land Economics/Use,
USERS' GUIDE TO THE MINNESOTA REGIONAL DEVELOPMENT SIMULATION LABORATORY
This manual is a users' guide to the Minnesota Regional Development Simulation Laboratory, called SIMLAB.Community/Rural/Urban Development,
Damage Control Thoracotomy: A Systematic Review of Techniques and Outcomes
Background
: Damage control surgery is the practice of delaying definitive management of traumatic injuries by controlling hemorrhage in the operating room and restoring normal physiology in the intensive care unit prior to definitive therapy. Presently, damage control or “abbreviated” laparotomy is used extensively for abdominal trauma in an unstable patient. The application of a damage control approach in thoracic trauma is less established and there is a paucity of literature supporting or refuting this practice. We aimed to systematically review the current data on damage control thoracotomy (DCT), to identify gaps in the literature and techniques in temporary closure.
Methods
: An electronic literature search of Pubmed, MEDLINE, and the Cochrane Database of Collected Reviews from 1972-2018 was performed using the keywords “thoracic,” “damage control,” and “thoracotomy.” Studies were included if they reported the use of DCT following thoracic trauma and included survival as an outcome.
Results
: Of 723 studies, seven met inclusion criteria for a total of a 130 DCT operations. Gauze packing with temporary closure of the skin with suture was the most frequently reported form of closure. The overall survival rate for the seven studies was 67%. Survival rates ranged from 42-77%. Average injury severity score was 30, and 64% of injuries were penetrating in nature. The most common complications included infections (57%; pneumonia, empyema, wound infection, bacteremia), respiratory failure (21%), ARDS (8%), and renal failure (18%).
Conclusion
: DCT may be associated with improved survival in the critically injured patient population. Delaying definitive operation by temporarily closing the thorax in order to allow time to restore normal physiology may be considered as a strategy in the unstable thoracic trauma patient population. The impact an open chest has on respiratory physiology remains inconclusive as well as best mechanisms of temporary closure. Multi-center studies are required to elucidate these important questions
Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data
A search for high-energy neutrinos interacting within the IceCube detector
between 2010 and 2012 provided the first evidence for a high-energy neutrino
flux of extraterrestrial origin. Results from an analysis using the same
methods with a third year (2012-2013) of data from the complete IceCube
detector are consistent with the previously reported astrophysical flux in the
100 TeV - PeV range at the level of per flavor and reject a
purely atmospheric explanation for the combined 3-year data at .
The data are consistent with expectations for equal fluxes of all three
neutrino flavors and with isotropic arrival directions, suggesting either
numerous or spatially extended sources. The three-year dataset, with a livetime
of 988 days, contains a total of 37 neutrino candidate events with deposited
energies ranging from 30 to 2000 TeV. The 2000 TeV event is the highest-energy
neutrino interaction ever observed.Comment: 8 pages, 5 figures. Accepted by PRL. The event catalog, event
displays, and other data tables are included after the final page of the
article. Changed from the initial submission to reflect referee comments,
expanding the section on atmospheric backgrounds, and fixes offsets of up to
0.9 seconds in reported event times. Address correspondence to: J. Feintzeig,
C. Kopper, N. Whitehor
Searching for eV-scale sterile neutrinos with eight years of atmospheric neutrinos at the IceCube neutrino telescope
We report in detail on searches for eV-scale sterile neutrinos, in the
context of a 3+1 model, using eight years of data from the IceCube neutrino
telescope. By analyzing the reconstructed energies and zenith angles of 305,735
atmospheric and events we construct confidence
intervals in two analysis spaces: vs.
under the conservative assumption ; and
vs. given sufficiently large that
fast oscillation features are unresolvable. Detailed discussions of the event
selection, systematic uncertainties, and fitting procedures are presented. No
strong evidence for sterile neutrinos is found, and the best-fit likelihood is
consistent with the no sterile neutrino hypothesis with a p-value of 8\% in the
first analysis space and 19\% in the second.Comment: This long-form paper is a companion to the letter "An eV-scale
sterile neutrino search using eight years of atmospheric muon neutrino data
from the IceCube Neutrino Observatory". v2: update other experiments contours
on results plo
An eV-scale sterile neutrino search using eight years of atmospheric muon neutrino data from the IceCube Neutrino Observatory
The results of a 3+1 sterile neutrino search using eight years of data from
the IceCube Neutrino Observatory are presented. A total of 305,735 muon
neutrino events are analyzed in reconstructed energy-zenith space to test for
signatures of a matter-enhanced oscillation that would occur given a sterile
neutrino state with a mass-squared differences between 0.01\,eV and
100\,eV. The best-fit point is found to be at
and , which is consistent with the no sterile
neutrino hypothesis with a p-value of 8.0\%.Comment: 11 pages, 5 figures. This letter is supported by the long-form paper
"Searching for eV-scale sterile neutrinos with eight years of atmospheric
neutrinos at the IceCube neutrino telescope," also appearing on arXiv.
Digital data release available at:
https://github.com/icecube/HE-Sterile-8year-data-releas
Paper Trails: Following the Money
In many recent elections, the candidates who raise the most money have a better shot at winning, so candidates must raise millions of dollars to win an election. A top question to consider in all elections: Where is the money coming from?
Posting about the financing behind federal elections from In All Things - an online hub committed to the claim that the life, death, and resurrection of Jesus Christ has implications for the entire world.
http://inallthings.org/paper-trails-following-the-money
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