377,420 research outputs found
Analysis of cosmic ray variations observed by the CARPET in association with solar flares in 2011-2012
The CARPET cosmic ray detector was installed on April 2006 at CASLEO (Complejo Astronmico El Leoncito) at the Argentinean Andes (31.8S, 69.3W, 2550 m, Rc=9.65 GV). This instrument was developed within an international cooperation between the Lebedev Physical Institute RAS (LPI; Russia), the Centro de Radio Astronomia e Astrofsica Mackenzie (CRAAM; Brazil) and the Complejo Astronmico el Leoncito (CASLEO; Argentina). In this paper we present results of analysis of cosmic ray variations recorded by the CARPET during increased solar flare activity in 2011-2012. Available solar and interplanetary medium observational data obtained onboard GOES, FERMI, ISS, as well as cosmic ray measurements by ground-based neutron monitor network were also used in the present analysis.Fil: Makhmutov, V.. Lebedev Physical Institute; Rusia. Universidade Presbiteriana Mackenzie; BrasilFil: Raulin, J. P.. Universidade Presbiteriana Mackenzie; BrasilFil: De Mendonca, R. R. S.. National Institute for Space Research; BrasilFil: Bazilevskaya, G. A.. Lebedev Physical Institute; RusiaFil: Correia, E.. Universidade Presbiteriana Mackenzie; Brasil. National Institute for Space Research; BrasilFil: Kaufmann, Pierre. Universidade Presbiteriana Mackenzie; BrasilFil: Marun, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Fernandez, German Enzo Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Echer, E.. National Institute for Space Research; Brasi
Review Essay: Adventures in Financeland
An Engine, Not a Camera: How Financial Models Shape Markets by Donald MacKenzie. Cambridge, MA, MIT Press, 2006, ISBN 0262134608. Pages: 377. 25.95 (hbk) Out of the Pits: Traders and Technology from Chicago to London by Caitlin Zaloom. Chicago, IL, University of Chicago Press, 2006. ISBN 0226978133. Pages: 224. 18.50 (hbk) Do Economists Make Markets? On the Performativity of Economics by Donald MacKenzie, Fabian Muniesa and Lucia Siu. Princeton, NJ, Princeton University Press, 2007. ISBN 0691130163. Pages: 373. 35.00 (hbk
Book Review: \u3cem\u3eHindu Perspectives on Evolution: Darwin, Dharma, and Design\u3c/em\u3e
A review of Hindu Perspectives on Evolution: Darwin, Dharma, and Design by C. Mackenzie Brown
Beyond the Band of Brothers: The US Military and the Myth that Women Can’t Fight (Book Review) by Megan MacKenzie
Review of Beyond the Band of Brothers: The US Military and the Myth that Women Can’t Fight by Megan MacKenzie
Benefits of the Southcentral Rail Extension to the Municipality of Anchorage
The proposed Southcentral rail extension to Port MacKenzie is likely to generate significant
economic benefits for the residents of Anchorage. These benefits are due to a combination of
reduced transport costs, the ability to ship bulk commodities over shorter distances, and
economical access to industrial land. We considered and analyzed these benefits under a set of
assumptions about job creation, transportation costs, land use considerations and future mineral
development. Our major findings include the following:
Jobs
• Port MacKenzie. The rail extension will generate new jobs for Anchorage workers by
stimulating industrial development and jobs at Port MacKenzie. Under a base case scenario
with a rail extension and ferry service, Anchorage residents would gain 730 average annual
jobs and 267 million
per year by 2040. A large share of these potential tax revenues, roughly proportional to
Anchorage’s share of state population, would likely flow into the Anchorage economy,
sustaining hundreds of direct jobs and reducing property tax burdens that would otherwise
stifle private sector job creation.
Regional Competitiveness
• New Economic Opportunities. Port MacKenzie and the rail extension, operating together,
are a significant new strategic asset for the entire regional economy. This infrastructure will
create expanded opportunities for mineral, timber, and energy resource development, and the
export of bulk commodities by rail through Port MacKenzie constitutes a new economic
sector for the Southcentral regional economy. As the region’s commercial and financial hub,
Anchorage will gain jobs and income from all of this activity.
• More Efficient Land Use. The rail extension allows for higher-valued use of land in
Anchorage. The rail extension will allow for railroad-dependent industrial development to
take place at Port MacKenzie. This development would allow limited existing industrialzoned
land throughout Anchorage to be used for other, higher-value uses such as commercial
development, while still meeting the regional economy’s need for industrial land.
Fiscal Benefits
• New State Revenues. As noted above, revenues to the State of Alaska from new resource
development would grow steadily, reaching $267 million per year by 2040. These revenues
will reduce the need for other taxes, stimulating capital formation and job creation by the
private sector.
• Higher Local Tax Base. Local governments will also see higher tax revenues from a
higher-valued property tax base. The stimulated new development will increase the tax base
and reduce the need to raise taxes on homeowners or existing businesses.
Other Benefits
• Port of Anchorage. The industrial and mineral development stimulated by the rail extension
to Port MacKenzie will likely increase both the volume and the value of cargo going through
the Port of Anchorage. For example, if large mines are developed, the goods and equipment
used by the mines for development and operations will flow through Anchorage.
• Rail Shipping Costs. The unit cost of shipping on the Alaska Railroad is likely to fall as
fixed costs of roadbed maintenance and administration are spread over a higher volume of
shipments.Matanuska - Susitna Borough Economic Development DepartmentIntroduction / Two Municipalities, One Regional Economy / Overview of Potential Benefits to Anchorage from the Rail Extension / Benefits from Construction and Operation of the Rail Extension / Benefits from Industrial Development at Port MacKenzie / Benefits from Employment of Anchorage Residents due to Railroad-Dependent Mineral Development / Appendix: Notes on Methodolog
The World from a Different Angle
Mackenzie Fraser ’17 expanded her view of the world when she served as a translator for a medical mission team and backpacked the Camino Inka in Peru over the summer
No-till Forage Establishment in Alaska
We assessed the effectiveness of no-till forage establishment at six Alaska locations: Anchor Point, Sterling, Point MacKenzie, Palmer, Delta Junction, and Fairbanks. Directly seeding grass into established grass stands generally did not improve forage yields or quality. Seeding rate had little effect on establishment of newly seeded forages in no-till. Grass yields were depressed when companion crop yields were high, and they typically did not recover in subsequent years. Red clover established well, producing high yields of good quality forage under no-till at Point MacKenzie, but established poorly at Anchor Point and Delta Junction. These results indicated that no-till seeding of most forage crops into declining grass stands is not likely to be successful in Alaska with current available technology
-Manifolds and Mackenzie Theory
Double Lie algebroids were discovered by Kirill Mackenzie from the study of
double Lie groupoids and were defined in terms of rather complicated conditions
making use of duality theory for Lie algebroids and double vector bundles. In
this paper we establish a simple alternative characterization of double Lie
algebroids in a supermanifold language. Namely, we show that a double Lie
algebroid in Mackenzie's sense is equivalent to a double vector bundle endowed
with a pair of commuting homological vector fields of appropriate weights. Our
approach helps to simplify and elucidate Mackenzie's original definition; we
show how it fits into a bigger picture of equivalent structures on `neighbor'
double vector bundles. It also opens ways for extending the theory to multiple
Lie algebroids, which we introduce here.Comment: This is a substantial re-work of our earlier paper
arXiv:math.DG/0608111. In particular, we included various details as well as
some new statements that may have independent interes
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