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Cartesian closed stable categories q

by Ni Liu, Sheng-gang Li , 2004
"... The aim of this paper is to establish some Cartesian closed categories which are between the two Cartesian closed categories: SLP (the category of L-domains and stable functions) and DI (the full subcategory of SLP whose objects are all dI-domains). First we show that the exponentials of every full ..."
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subcategory of SLP are exactly the spaces of stable functions. Then we prove that the full subcategories SDMBC, SDCBC and SDABC of SLP which contain DI are all Cartesian closed, where the objects of SDMBC (resp., SDCBC, SDABC) are all distributive bc-domains which are meet-continuous (resp., continuous

Efficient Extraction of High Centrality Vertices in Distributed Graphs

by Alok Gautam Kumbhare , Marc Frincu , Cauligi S Raghavendra , Viktor K Prasanna
"... Abstract-Betweenness centrality (BC) is an important measure for identifying high value or critical vertices in graphs, in variety of domains such as communication networks, road networks, and social graphs. However, calculating betweenness values is prohibitively expensive and, more often, domain ..."
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Abstract-Betweenness centrality (BC) is an important measure for identifying high value or critical vertices in graphs, in variety of domains such as communication networks, road networks, and social graphs. However, calculating betweenness values is prohibitively expensive and, more often, domain

A domain-specific marker for the hepatocyte plasma membrane. III. Isolation of bile eanalicular membrane by immunoadsorption

by Laura M Roman, Ann L Hubbard - J. Cell , 1984
"... companion paper) established leucine aminopeptidase (LAP) as a specific marker for the bile canalicular (BC) domain of the rat hepatocyte plasma membrane (PM). In this study, we have isolated membrane from a sonicated PM vesicle fraction using anti-LAP-coated Staphylococcus aureus cells as a solid-p ..."
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companion paper) established leucine aminopeptidase (LAP) as a specific marker for the bile canalicular (BC) domain of the rat hepatocyte plasma membrane (PM). In this study, we have isolated membrane from a sonicated PM vesicle fraction using anti-LAP-coated Staphylococcus aureus cells as a solid

A comment on Zysno’s “The Modification of the Phi-coefficient reducing its Dependence on the Marginal Distributions”

by Matthijs J. Warrens , 2008
"... Association coefficients are quantities that play an important role in many domains of data analysis. An example is the Phi-coefficient (Yule 1912) for two dichotomous variables. Suppose the N elements of the di-chotomous variables fall into the classes “+ ” and “−”. Many association coefficients fo ..."
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= ad − bc√ (a+ b)(a+ c)(b+ d)(c+ d) The maximum and minimum value of coefficient φ, regardless of the marginal distributions, are 1 and −1 respectively. However, the values 1 and −1 only occur in the extreme cases that n1 = n2 or n1 = u2. 1 Zysno (1997) reviews modifications of coefficient φ from

Steered molecular dynamics simulation of the Rieske subunit motion in the cytochrome bc1 complex, Biophys

by Sergei Izrailev, Antony R. Crofts, Edward A. Berry, Klaus Schulten - J , 1999
"... ABSTRACT Crystallographic structures of the mitochondrial ubiquinol/cytochrome c oxidoreductase (cytochrome bc1 complex) suggest that the mechanism of quinol oxidation by the bc1 complex involves a substantial movement of the soluble head of the Rieske iron-sulfur protein (ISP) between reaction doma ..."
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domains in cytochrome b and cytochrome c1 subunits. In this paper we report the results of steered molecular dynamics simulations inducing, through an applied torque within 1 ns, a 56° rotation of the soluble domain of ISP. For this purpose, a solvated structure of the bc1 complex in a phospholipid

STRUCTURAL MODEL FOR FERRIHYDRITE

by V. A. Drits, B. A. Sakharov , 1992
"... ABSTRACT: The structure of 6-line and 2-line ferrihydrite (Fh) has been reconsidered. X-ray diffraction (XRD) curves were first simulated for the different structural models so far proposed, and it is shown that neither of these corresponds to the actual structure of ferrihydrite. On the basis of ag ..."
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, and the space group is P31c. (ii) Defective Fh in which AClBC2A and AblCb2A structural fragments occur with equal probability and alternate completely at random; Fe atoms within each of these fragments have identical ordered distribution within the hexagonal super-cell with a = 5.126 A. (iii) Ultradispersed

doi:10.1155/2010/489892 Research Article Cloning, Expression, and Purification of a Nitric Oxide Synthase-Like Protein from Bacillus cereus

by Heather J. Montgomery, Andrea L. Dupont, Hilary E. Leivo, J. Guy Guillemette , 2009
"... Copyright © 2010 Heather J. Montgomery et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The nitric oxide synthase-like protein ..."
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-hydroxy-L-arginine as well as the ligand imidazole. Low levels of activity were recorded for the hydrogen peroxide-dependent oxidation of N G-hydroxy-L-arginine and L-arginine by bcNOS, while a reconstituted system with the rat neuronal NOS reductase domain showed no activity. The recombinant bcNOS protein adds

STUDY OF BOUNDARY CONDITIONS INFLUENCE ON CMAQ SIMULATIONS OVER THE IBERIAN PENINSULA

by Javier López , Rafael Borge , Mª Julio Lumbreras , Encarnación Rodríguez , Adolfo Narros
"... Abstract: Air pollution continues to be a major concern in many regions of the world, including Europe, and effective abatement measures are required to meet air quality standards in future years. The Integrated Air Quality Modelling System for the Iberian Peninsula (SIMCA) is a project that it is ..."
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of the Integrated Assessment Modelling (IAM) activities needed to provide an effective support to the policy-making process. Three ways to provide BC are tested: -fixed, time-independent, concentration profiles -concentrations predicted in a CMAQ mother domain (48 km, 1h resolution) -concentration values from

Phenomenological Theory of the Kink Instability in a Slender Plasma Column Physics of Plasmas PHENOMENOLOGICAL THEORY OF THE KINK INSTABILITY IN A SLENDER PLASMA COLUMN

by D D Ryutov , I Furno , T P Intrator , S Abbate , T Madziwa-Nussinov , D D Ryutov , I Furno , T P Intrator , S Abbate , T Madziwa-Nussinov
"... Abstract When one deals with a plasma column whose radius a is much smaller than its length L, one can think of it as of a thin filament whose kink instability can be adequately described simply by a 2D displacement vector, ξ x =ξ x (z,t); ξ y =ξ y (z,t). Details of the internal structure of the co ..."
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of the column such as the current, density, and axial flow velocity distribution would be lumped into some phenomenological parameters. This approach is particularly efficient in the problems with non-ideal (sheath) boundary conditions (BC) at the end electrodes, with the finite plasma resistivity, and with a

Relation between Fresnel transform of input light field and Radon transform of Wigner function of the field

by Hong-yi Fan, Li-yun Hu , 2008
"... We prove a new theorem about the relationship between optical field Wigner function’s Radon transform and optical Fresnel transform of the field, i.e., when an input field ψ (x ′) propagates through an optical [D (−B)(−C) A] system, the energy density of the output field is equal to the Radon transf ..."
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transform of the Wigner function of the input field, where the Radon transform parameters are D, B. We prove this theorem in both spatial-domain and frequencydomain. In optical communication theory every signal or image can be uniquely and indirectly described by a Wigner distribution function (WDF) [1, 2
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