منابع مشابه
Molecular Pathways Molecular Pathways: Transcription Factories and Chromosomal Translocations
Themammalian nucleus is a highly complex structure that carries out a diverse range of functions such as DNA replication, cell division, RNA processing, and nuclear export/import. Many of these activities occur at discrete subcompartments that intersect with specific regions of the genome. Over the past few decades, evidence has accumulated to suggest that RNA transcription also occurs in speci...
متن کاملMolecular pathways: transcription factories and chromosomal translocations.
The mammalian nucleus is a highly complex structure that carries out a diverse range of functions such as DNA replication, cell division, RNA processing, and nuclear export/import. Many of these activities occur at discrete subcompartments that intersect with specific regions of the genome. Over the past few decades, evidence has accumulated to suggest that RNA transcription also occurs in spec...
متن کاملHigh Altitude Molecular Clouds
A population of molecular clouds with a significantly greater scale height than that of Giant Molecular Clouds has been identified by examining maps of the latitude distribution of the CO(1 − 0) emission in the first quadrant of the Galaxy. These clouds are found by identifying emission more than 2.6 times the scale-height away from the galactic midplane (centroid of CO emission) at the tangent...
متن کاملGamma Rays from Molecular Clouds
High energy γ-rays from individual giant molecular clouds contain unique information about the hidden sites of acceleration of galactic cosmic rays, and provide a feasible method for study of propagation of cosmic rays in the Galactic Disk on scales ≤ 100 pc. I discuss the spectral features of π-decay γ-radiation from clouds/targets located in proximity of relatively young proton accelerators, ...
متن کاملDiffuse Atomic and Molecular Clouds
Diffuse interstellar clouds have long been thought to be relatively devoid of molecules, because of their low densities and high radiation fields. However, in the past ten years or so, a plethora of polyatomic molecules have been observed in diffuse clouds, via their rotational, vibrational, and electronic transitions. In this review, we propose a new systematic classification method for the di...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1985
ISSN: 0252-9211
DOI: 10.1017/s0252921100083779