Results 221 to 230 of about 11,707 (261)
"The Secret of the Care of the Patient Is in Caring for the Patient". [PDF]
J Grad Med EducCaplan H.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
The fine structure of the quiet Sun
Solar Physics, 1985The observed properties of the small-scale features visible in the quiet photosphere — the granulation, of convective origin, and the network bright points, associated with kG magnetic fields — are described. The known properties of the magnetic flux tubes associated with network bright points are also presented.
openaire +1 more source
Scientific American, 2010
The article discusses the solar cycle which is an eleven-year period in which the Sun's activity fluctuates. According to the author, sunspots, which are magnetic markers on the Sun's surface, provide helioseismologists with visual cues to the cycle's evolution.
openaire +1 more source
The article discusses the solar cycle which is an eleven-year period in which the Sun's activity fluctuates. According to the author, sunspots, which are magnetic markers on the Sun's surface, provide helioseismologists with visual cues to the cycle's evolution.
openaire +1 more source
Solar Physics, 1979
Macrospicules have been observed in Hα and He i D3, on the disk and above the limb. In 1975, a rate of 1400 (A⊙day)−1 is inferred, and the ratio of equatorial to polar rates ≲ 2. D3 intensities are a few × 10−3 of the disk center, and do not decrease in coronal holes. The ratio of Hα to D3 intensities is ≈ 10.
openaire +1 more source
Macrospicules have been observed in Hα and He i D3, on the disk and above the limb. In 1975, a rate of 1400 (A⊙day)−1 is inferred, and the ratio of equatorial to polar rates ≲ 2. D3 intensities are a few × 10−3 of the disk center, and do not decrease in coronal holes. The ratio of Hα to D3 intensities is ≈ 10.
openaire +1 more source
2019
Total solar eclipses provide a unique view of the faint solar corona, without the bright over-powering emission from the solar disk, enabling us to explore the electron density, temperature, thermodynamics, and related fundamental physics (Habbal et al. 2010a, 2011, 2013).
openaire +1 more source
Total solar eclipses provide a unique view of the faint solar corona, without the bright over-powering emission from the solar disk, enabling us to explore the electron density, temperature, thermodynamics, and related fundamental physics (Habbal et al. 2010a, 2011, 2013).
openaire +1 more source
Radio Observations of the Quiet Sun
2004While radio observations of the Sun have mostly focused on active region phenomena, they also contribute unique data to our knowledge of the quiet Sun, in particular through accurate measurements of the temperature as a function of height in the atmosphere and through the measurement of nonthermal emissions from chromospheric and coronal heating events.
Christoph U. Keller, Säam Krucker
openaire +1 more source
Physics Today, 1974
An up-to-date textbook of solar physics is presented. The solar structure and processes, and the interior are described along with the photosphere, the chromosphere, and the corona. The strongest Fraunhofer lines, visible coronal lines, and coronal UV, XUV, and X-ray lines are listed.
Edward G. Gibson, Robert D. Chapman
openaire +1 more source
An up-to-date textbook of solar physics is presented. The solar structure and processes, and the interior are described along with the photosphere, the chromosphere, and the corona. The strongest Fraunhofer lines, visible coronal lines, and coronal UV, XUV, and X-ray lines are listed.
Edward G. Gibson, Robert D. Chapman
openaire +1 more source
The International Years of the Quiet Sun
Polar Record, 1964“The knowledge of the world is only to be acquired in the world and not in a closet.” This advice was given by the Earl of Chesterfield to his son in 1746 and, although it was not intended as such, it could well have inspired all those geophysicists who have ever left their laboratories to make observations in the field, or who have compared the ...
openaire +1 more source
Solar Minimum and the International Years of the Quiet Sun
Science, 1964Criteria that serve as guides to the course of the solar cycle are summarized so that the current level of solar activity can be judged in trying to determine the time and the probability of protracted intervels of true solar quite during the years designated as the Internation Years of the Quiet Sun (IQSY). Data are tabulated. (P.C.H.)
H W, Dodson, E R, Hedeman
openaire +2 more sources
AIP Conference Proceedings, 2003
The seemingly un‐magnetized part of the solar surface is not really un‐magnetized. It is occupied by magnetic structures producing low polarization which, therefore, escape detection in traditional measurements. Since most of the solar surface belongs to this category, the quiet Sun magnetic fields can easily carry most of the magnetic flux and energy ...
openaire +1 more source
The seemingly un‐magnetized part of the solar surface is not really un‐magnetized. It is occupied by magnetic structures producing low polarization which, therefore, escape detection in traditional measurements. Since most of the solar surface belongs to this category, the quiet Sun magnetic fields can easily carry most of the magnetic flux and energy ...
openaire +1 more source