منابع مشابه
Crumbs turns the corner
rumbs (Crb) helps flies distinguish apical from basal in their epithelia. Now two new studies show that it is required for cell expansion independently of its specification of apical polarity. During cell expansion, the apical domain of photoreceptors elongates perpendicular to the apical–basal axis so that the domain can extend from the top to the bottom of the fly eye. The process may be cons...
متن کاملEstrogen turns down "the AIRE".
Genetic alterations are known drivers of autoimmune disease; however, there is a much higher incidence of autoimmunity in women, implicating sex-specific factors in disease development. The autoimmune regulator (AIRE) gene contributes to the maintenance of central tolerance, and complete loss of AIRE function results in the development of autoimmune polyendocrinopathy syndrome type 1. In this i...
متن کاملSperm and ova as property.
To whom do sperm and ova belong? Few tissues are produced by the human body with more waste than the germ cells. Yet dominion over the germ cells, and over the early embryo that results from their union in vitro, is behind much of the emotion that modern reproductive intervention can engender. The germ cells differ from other human tissues that can be donated or transplanted because they carry ...
متن کاملTime turns the universal kaleidoscope
The idea of a harmonious universe is one with which scientists and philosophers have sympathized for centuries. Of course, many such as Tolman[11], have revealed difficulties with original oscillatory models, typically citing divergent entropy or difficulty with singularities. By scientific judgement and recent developments[2, 10, 8], I am compelled to resort to such a model in the description ...
متن کاملLateral turns in the Lamprey. II. Activity of reticulospinal neurons during the generation of fictive turns.
We studied the neural correlates of turning movements during fictive locomotion in a lamprey in vitro brain-spinal cord preparation. Electrical stimulation of the skin on one side of the head was used to evoke fictive turns. Intracellular recordings were performed from reticulospinal cells in the middle (MRRN) and posterior (PRRN) rhombencephalic reticular nuclei, and from Mauthner cells, to ch...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2012
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.1965iti3