منابع مشابه
Dev102988 1671..1682
The development of the vertebrate brain requires an exquisite balance between proliferation and differentiation of neural progenitors. Notch signaling plays a pivotal role in regulating this balance, yet the interaction between signaling and receiving cells remains poorly understood. We have found that numerous nascent neurons and/or intermediate neurogenic progenitors expressing the ligand of ...
متن کاملLimnol. Oceanogr., 44(7), 1999, 1667–1682
Colonies of Stylophora pistillata maintained for four years in indoor aquaria in the near absence of ultraviolet radiation (UVR) contained only small amounts (,5 nmol mg21 protein) of 10 identified mycosporine-like amino acids (MAAs, which act as UV sunscreens), the largest number reported in any organism. The concentrations of most MAAs increased linearly or exponentially when colonies were ex...
متن کاملSir Thomas Browne (1605-1682) and life before birth.
Thomas Browne was born in 1605. His father was a London merchant about whom little is known. His mother married a second time and Thomas's stepfather, Sit Thomas Dutton, gave him an excellent education, first at Winchester and then at Bradgate Hall, now Pembroke College, Oxford. His undergraduate career was distinguished and he acquired a BA in 1626, followed by a MA in 1629. After a visit to I...
متن کاملHESITA(te) in Portuguese
Hesitations, so-called disfluencies, are a characteristic of spontaneous speech, playing a primary role in its structure, reflecting aspects of the language production and the management of inter-communication. In this paper we intend to present a database of hesitations in European Portuguese speech HESITA as a relevant base of work to study a variety of speech phenomena. Patterns of hesitatio...
متن کاملHeterojunction double dumb - bell Ag 2 Te – Te – Ag 2 Te nanowires
Growth of isolated axial heterojunction nanowires by a solution phase growth process is reported. The dumb-bell shaped nanowires contain two silver telluride sections at the extremes joined by a tellurium section. Reaction of silver nitrate with tellurium NWs in aqueous solution at a molar ratio of 1 : 1 leads to the formation of amorphous partially silver reacted Te NWs. Low temperature (75 C)...
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ژورنال
عنوان ژورنال: Ghendtsche Tydinghen
سال: 1970
ISSN: 1783-9033
DOI: 10.21825/gt.v33i2.5994