The Evolution of Protostars Michael M. Dunham; Amelia M. Stutz; Lori E. Allen ...
Protostars and Planets VI,
12/2014
Book Chapter
The formation of stars occurs in dense cores of molecular clouds, where gravity finally overwhelms turbulence, magnetic fields, and thermal pressure. This review assesses the current understanding of ...the early stages of this process, focusing on the evolutionary progression from dense cores up to the stage of a star and disk without a surrounding envelope: the protostellar phase of evolution.
Because of the obscuration at short wavelengths by dust and the consequent reemission at longer wavelengths, protostars are best studied at infrared and radio wavelengths, using both continuum emission from dust and spectral lines. At the time of the last
Faculties Have Rights, Too Pollok, Clementine S.; Poteet, Gaye W.; Whelan, Wayne L.
The American journal of nursing,
04/1977, Letnik:
77, Številka:
4
Journal Article
The purpose and evolution of educational assessment are considered. Alternatives to standardized assessment include performance assessment, authentic assessment, and portfolio assessment. Issues ...concerning outcomes of the assessment revolution include appropriate standards, associated changes in curricula and grading, and questions regarding standards for students at risk. (SW)
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
159.
Students' Rights Pollok, Clementine S.; Poteet, Gaye W.; Whelan, Wayne L.
The American journal of nursing,
04/1976, Letnik:
76, Številka:
4
Journal Article
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