منابع مشابه
Two Axiomatizations of Nelson Algebras
Nelson algebras were first studied by Rasiowa and BiałynickiBirula [1] under the name N-lattices or quasi-pseudo-Boolean algebras. Later, in investigations by Monteiro and Brignole [3, 4], and [2] the name “Nelson algebras” was adopted – which is now commonly used to show the correspondence with Nelson’s paper [14] on constructive logic with strong negation. By a Nelson algebra we mean an abstr...
متن کاملMarilyn Farquhar: From the beginning
F ew people have a perspective on cell biology that can compare to Marilyn Farquhar's. She was there at the very beginning and, over the course of her career, has both witnessed and helped guide the evolution of the fi eld. She has served as faculty at the University of California, San Francisco (UCSF) and at Yale. And, as the fi rst head of the Depart-(UCSD), she nurtured the development of th...
متن کاملInspiring minds. Marilyn Huestis.
In the 1950s, when the world seemed a safer place, a parent might send a young child on an overnight train to a relative in a distant city. Marilyn Huestis was five years old and her sister was three when they made the journey from Hyattsville, Maryland, to Jacksonville, Florida, to see their grandparents. As it sped along, the train hit and killed a man who had wandered onto the tracks, which ...
متن کاملThe Nelson Model with Less Than Two Photons
We study the spectral and scattering theory of the Nelson model for an atom interacting with a photon field in the subspace with less than two photons. For the free electron-photon system, the spectral property of the reduced Hamiltonian in the center of mass coordinates and the large time dynamics are determined. If the electron is under the influence of the nucleus via spatially decaying pote...
متن کاملThe Two Interpretations of the Beveridge–nelson Decomposition
The Beveridge–Nelson decomposition calculates trend and cycle for an integrated time series. However, there are two ways to interpret the results from the decomposition. One interpretation is that the optimal long-run forecast (minus any deterministic drift) used to calculate the Beveridge–Nelson trend corresponds to an estimate of an unobserved permanent component. The other interpretation is ...
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: Literary Imagination
سال: 2006
ISSN: 1523-9012,1752-6566
DOI: 10.1093/litimag/8.2.276