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Technological Remarks on the Folsom Bifacial Artifacts from the Barker Site, New Mexico
(Center for the Study of the First Americans, 2007-12)
As a part of a long-term project directed towards experimental and comparative technological research on diverse Paleoindian lithic assemblages from the Americas, this paper reports observations made on bifacial artifacts ...
A systematic review of the relationships between principal characteristics and student achievement
(U.S. Department of Education. Institute of Education Sciences, 2015-11)
This report reviews studies that have investigated the relationships between principal characteristics (including precursors, behaviors, and leadership styles) and student achievement. Only one experimental study examined ...
A systematic review of the relationships between principal characteristics and student achievement
(U.S. Department of Education. Institute of Education Sciences, 2015-11)
This report reviews studies that have investigated the relationships between principal characteristics (including precursors, behaviors, and leadership styles) and student achievement. Only one experimental study examined ...
Stellar magnetism: empirical trends with age and rotation
(Royal Astronomic Society, 2014-02-28)
We investigate how the observed large-scale surface magnetic fields of low-mass stars (∼0.1–
2M ), reconstructed through Zeeman–Doppler imaging, vary with age t, rotation and Xray
emission. Our sample consists of 104 ...
The energy budget of stellar magnetic fields
(Royal Astronomic Society, 2015-06-02)
Spectropolarimetric observations have been used to map stellar magnetic fields, many of which display strong bands of azimuthal fields that are toroidal. A number of explanations have been proposed to explain how such ...
Magnetic field and wind of kappa ceti: toward the planetary habitability of the young sun when life arose on earth
(The American Astronomical Society, 2020)
The connection between stellar activity cycles and magnetic field topology
(Royal Astronomical Society, 2016-08-12)
Zeeman–Doppler imaging (ZDI) has successfully mapped the large-scale magnetic fields of stars over a large range of spectral types, rotation periods and ages. When observed over multiple epochs, some stars show polarity ...