Zobrazeno 1 - 10
of 793
pro vyhledávání: '"David E, Smith"'
Autor:
Graham Rush, Ed Garrett, Mark D. Bateman, Grant R. Bigg, Fiona D. Hibbert, David E. Smith, W. Roland Gehrels
Publikováno v:
Quaternary Science Advances, Vol 12, Iss , Pp 100119- (2023)
The 8.2 ka climate event is the most significant North Atlantic cooling event during the Holocene. Freshwater pulses from the melting Laurentide Ice Sheet draining into the North Atlantic Ocean are commonly thought to be its cause by perturbing the A
Externí odkaz:
https://doaj.org/article/2d6aa95d47e44053a1993aa11d93ade6
Autor:
David E. Smith
Whether it's the first-past-the-post electoral system or partisan government appointees to the Senate, Canadians want better representation and accountability from the federal government. Before reforms can be enacted, however, it is important to exp
Autor:
David E. Smith, Micaela Raices, Javier A. Pollán, Betiana M. Pérez, Maria Florencia Grande Ratti
Publikováno v:
Revista del Hospital Italiano de Buenos Aires, Vol 43, Iss 3 (2023)
Introducción: la medicina basada en el valor ha logrado mejorar la calidad de atención del paciente y/o la satisfacción de las personas, reduciendo costos y obteniendo mejores resultados. Se apoya sobre tres pilares básicos: la medicina basada en
Externí odkaz:
https://doaj.org/article/a5d7e46c70974ee598f9189cc008e37e
Autor:
Ryan T. Walker, Michael K. Barker, Erwan Mazarico, Xiaoli Sun, Gregory A. Neumann, David E. Smith, James W. Head, Maria T. Zuber
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 5, p 122 (2024)
Examining the reflectance of the Moon’s surface across a broad range of viewing geometries through photometric analysis can reveal physical and geological properties of its regolith. Since 2013 December, the Lunar Orbiter Laser Altimeter (LOLA) on
Externí odkaz:
https://doaj.org/article/7a6b4dc6792d4f95879f443e63f8e899
Autor:
David E. Smith
How do parties with official opposition status influence Canadian politics? Across the Aisle is an innovative examination of the theory and practice of opposition in Canada, both in Parliament and in provincial legislatures. Extending from the pre-Co
Autor:
David E. Smith
The Crown is not only Canada's oldest continuing political institution, but also its most pervasive, affecting the operation of Parliament and the legislatures, the executive, the bureaucracy, the courts, and federalism. However, many consider the Cr
Autor:
Erwan Mazarico, Xiaoli Sun, Jean-Marie Torre, Clément Courde, Julien Chabé, Mourad Aimar, Hervé Mariey, Nicolas Maurice, Michael K. Barker, Dandan Mao, Daniel R. Cremons, Sébastien Bouquillon, Teddy Carlucci, Vishnu Viswanathan, Frank G. Lemoine, Adrien Bourgoin, Pierre Exertier, Gregory A. Neumann, Maria T. Zuber, David E. Smith
Publikováno v:
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-14 (2020)
Abstract We present the results of the first series of successful two-way laser ranging experiments from a ground station, the Lunar Laser Ranging (LLR) station in Grasse, France, to a spacecraft at lunar distance, the Lunar Reconnaissance Orbiter (L
Externí odkaz:
https://doaj.org/article/45c3c98a7cdb44038120172781e76504
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 11, p 204 (2023)
The lunar gravity field is used to estimate and constrain the depth of mass anomalies under 19 major lunar impact basins. We use radial gravitational spectra, consisting of accelerations computed either per spherical harmonic degree or cumulatively,
Externí odkaz:
https://doaj.org/article/52f309a70f4d4b9ab170f167cb453e60
Autor:
Michael K. Barker, Erwan Mazarico, Gregory A. Neumann, David E. Smith, Maria T. Zuber, James W. Head, Xiaoli Sun
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 9, p 183 (2023)
Upcoming missions to the lunar south pole require detailed maps over large areas to fully characterize landing sites locally and regionally and to place their data into proper geologic context. To that end, we enhanced the Lunar Orbiter Laser Altimet
Externí odkaz:
https://doaj.org/article/210a43e5612a45e680189a9674460e93
Autor:
Sander Goossens, David E Smith
Publikováno v:
Geophysical Journal International. 233:1878-1889
SUMMARYRelationships between the degree of a spherical harmonic model of the gravitational field of a body and the depth of a source expressed as a density contrast can be used to study the structure of features. Here, we show that the gravitational