منابع مشابه
Polarized Radicals
Establishing polarized surfaces enables cells to carry out specialized tasks. In this issue, Lee et al. present a mechanism for cell polarization in which localized peroxidases are used to position the Casparian strip, a diffusion barrier deposited between endodermal cells in plant roots.
متن کامل) radicals
We report on the production of a pulsed molecular beam of metastable NH (a 1∆) radicals and present first results on the Stark deceleration of the NH (a 1∆, J = 2,MΩ = −4) radicals from 550 m/s to 330 m/s. The decelerated molecules are excited on the spin-forbidden A 3Π ← a 1∆ transition, and detected via their subsequent spontaneous fluorescence to the X 3Σ−, v” = 0 ground-state. These experim...
متن کاملThe secondary radicals of submodules
Let $R$ be a commutative ring with identity and let $M$ be an $R$-module. In this paper, we will introduce the secondary radical of a submodule $N$ of $M$ as the sum of all secondary submodules of $M$ contained in $N$, denoted by $sec^*(N)$, and explore the related properties. We will show that this class of modules contains the family of second radicals properly and can be regarded as a dual o...
متن کاملSemi-radicals of Sub modules in Modules
Abstract: Let be a commutative ring and be a unitary module. We define a semiprime submodule of a module and consider various properties of it. Also we define semi-radical of a submodule of a module and give a number of its properties. We define modules which satisfy the semi-radical formula and present the existence of such a module.
متن کاملContinued Radicals
and consider continued radicals of form limn→∞ Sn = √ a1, a2, a3, . . . . Convergence criteria for continued radicals are given in [2], and [3]. We consider the sets S(M) of real numbers which are representable as a continued radical whose terms a1, a2, . . . are all from a finite set M = {m1,m2, . . . ,mp} ⊆ N where 0 < m1 < m2 < · · · < mp. For any nonnegative number n, √ n, n, n, . . . conve...
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: Cell
سال: 2013
ISSN: 0092-8674
DOI: 10.1016/j.cell.2013.03.042