Filters








90,815 Hits in 3.5 sec

A Fixed-Parameter Perspective on #BIS [article]

Radu Curticapean, Holger Dell, Fedor Fomin, Leslie Ann Goldberg and John Lapinskas
2017 arXiv   pre-print
a given number of vertices in one vertex class.  ...  Finally, we show that, when restricted to graphs of bounded degree, all three problems have efficient exact fixed-parameter algorithms.  ...  To gain a more refined perspective on these problems, we also study them from the perspective of parameterised complexity, taking the number of vertices, n, as the size of the input and k as the fixed  ... 
arXiv:1702.05543v2 fatcat:hbdkt6ecnbedvc7ceg27xfpg2i

A Fixed-Parameter Perspective on #BIS * † theorem numbering here matches the full version

Radu Curticapean, Holger Dell, Fedor Fomin, Leslie Goldberg, John Lapinskas, Radu Curticapean, Holger Dell, Fedor Fomin, Ann Leslie, John Goldberg, Lapinskas
2017 licensed under Creative Commons License CC-BY 12th International Symposium on Parameterized and Exact Computation   unpublished
a given number of vertices in one vertex class.  ...  Finally, we show that, when restricted to graphs of bounded degree, all three problems have efficient exact fixed-parameter algorithms.  ...  The -left-maximum independent sets X of G correspond bijectively to the size-edge sets {e | u e ∈ X ∩ U } of G which span a minimum number of vertices. 13:6 A Fixed-Parameter Perspective on #BIS Note  ... 
fatcat:wpldwkzd4befxnuxxkp6alzwfi

Redetermination of bis(N,N-diethyldithiocarbamato-κS)dimethyltin(IV) at low temperature

Ajax K. Mohamed, Norbert Auner, Michael Bolte
2003 Acta Crystallographica Section E  
Key indicators Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.007 A Ê R factor = 0.026 wR factor = 0.052 Data-to-parameter ratio = 22.3 For details of how these key indicators were automatically  ...  Refinement All H atoms could be located unequivocally by difference Fourier synthesis and were refined with fixed individual displacement parameters [U iso (H) = 1.2U eq (C) or 1.5U eq (C methyl )], using  ...  E59, m190-m191 Figure 2 2 Perspective view of molecule 2 of the title compound, showing the atom numbering and displacement ellipsoids at the 50% probability level. bis(N,N-diethyldithiocarbamato-κS)  ... 
doi:10.1107/s1600536803006056 fatcat:ofp6jyr37fe3lbpqxyrxjnhgii

ortho-Bis(dimethylsilyl)hexamethyldecasilasesquioxane

Michael Bolte
2006 Acta Crystallographica Section E  
All H atoms were located in a difference map but were positioned with idealized geometry (C-H = 0.98 A ˚) and refined with fixed individual displacement parameters [U iso (H) = 1.5U eq (C)] using a riding  ...  A perspective view of (I) is shown in Fig. 1 . Bond lengths and angles can be regarded as normal (Cambridge Structural Database, Version 5.27 plus one update; MOGUL Version 1.1; Allen, 2002) .  ... 
doi:10.1107/s1600536806004545 fatcat:z3niyzq23fhsfggrnbavea67iy

Self-Projective Rational Curves of the Fourth and Fifth Orders

R. M. Winger
1914 American Journal of Mathematics  
Afigure (Fig. 1) has been drawn, using the equatilon x' = 5 x.Quintic (2) has a double point of which each branch is an undulation,* the nodal parameters being the fixed points of the bi-nary cyclic g5  ...  These three pairs of parameters, then, are the fixed parameters of the involutions. Now eacb such touching flex tangent is made up of one stationary line and two double lines.  ... 
doi:10.2307/2370518 fatcat:xjqqgtbfofe2dhdyzgr4hefwrm

2,2′-Dimethyl-2,2′-(m-phenylenedimethylene)propanedinitrile

Junmei Zhao, Volker Böhmer, Michael Bolte
2009 Acta Crystallographica Section E  
Key indicators: single-crystal X-ray study; T = 173 K; mean (C-C) = 0.002 Å; R factor = 0.037; wR factor = 0.101; data-to-parameter ratio = 15.0.  ...  The crystal structure is stabilized by C-HÁ Á ÁN hydrogen-bonding interactions.  ...  They were refined with fixed individual displacement Perspective view of the title compound with the atom numbering; displacement ellipsoids are at the 50% probability level. parameters [U iso (H) = 1.2  ... 
doi:10.1107/s1600536809023344 pmid:21582920 pmcid:PMC2969357 fatcat:vie5hnoin5dqpmbcppnil43hiy

Cross-border mergers and acquisitions [chapter]

Steven Brakman, Harry Garretsen, Charles van Marrewijk
2007 International Mergers and Acquisitions Activity Since 1990  
By combining two large data sets (on international trade flows and cross-border mergers and acquisitions -M&As), we test two implications of Neary's (2003 Neary's ( , 2007 general oligopolistic equilibrium  ...  In terms of economic importance, the dominant merger wave variable is a positive global-all effect, indicating that M&A waves are an economy-wide, global phenomenon.  ...  M&As; QML (parameter = 0.13), (standard errors in parentheses), select acquiring perspective target perspective Balassa index BI 0.2677 *** 0.2202 *** (0.0607) (0.0587) BI AU 0.3658 *** 0.2844  ... 
doi:10.1016/b978-075068289-3.50004-6 fatcat:h7rlwqdmurch7fvzlkhvblad3i

Cross-border mergers and acquisitions [chapter]

2010 Measuring Globalisation: OECD Economic Globalisation Indicators 2010  
By combining two large data sets (on international trade flows and cross-border mergers and acquisitions -M&As), we test two implications of Neary's (2003 Neary's ( , 2007 general oligopolistic equilibrium  ...  In terms of economic importance, the dominant merger wave variable is a positive global-all effect, indicating that M&A waves are an economy-wide, global phenomenon.  ...  M&As; QML (parameter = 0.13), (standard errors in parentheses), select acquiring perspective target perspective Balassa index BI 0.2677 *** 0.2202 *** (0.0607) (0.0587) BI AU 0.3658 *** 0.2844  ... 
doi:10.1787/9789264084360-42-en fatcat:2vgjmxq4rbbg5bkxi7np6x6zeu

Cross-Border Mergers and Acquisitions

Steven Brakman, Harry Garretsen, Charles van Marrewijk
2008 Social Science Research Network  
By combining two large data sets (on international trade flows and cross-border mergers and acquisitions -M&As), we test two implications of Neary's (2003 Neary's ( , 2007 general oligopolistic equilibrium  ...  In terms of economic importance, the dominant merger wave variable is a positive global-all effect, indicating that M&A waves are an economy-wide, global phenomenon.  ...  M&As; QML (parameter = 0.13), (standard errors in parentheses), select acquiring perspective target perspective Balassa index BI 0.2677 *** 0.2202 *** (0.0607) (0.0587) BI AU 0.3658 *** 0.2844  ... 
doi:10.2139/ssrn.1087886 fatcat:i5tth6idvbe4fjqdt6iztkfncy

Feasibility study for a catadioptric bi-spectral imaging system

C. Gée, L. Berret, C. Chardon, J. Bossu, J.-P. Guillemin, G. Jones, F. Truchetet, Kurt S. Niel, David Fofi
2008 Image Processing: Machine Vision Applications  
Then fixing a filter on each mirror, two different spectral channels (e.g. Blue and Green) of the scene can be obtained. The optical modeling is explained to shot the same scene.  ...  In order to distinguish between weeds species or to discriminate between weeds and soil from their spectral properties, we investigate a spectral approach developing a catadioptric bi-spectral imaging  ...  fixed on each mirror.  ... 
doi:10.1117/12.766471 fatcat:h4l7sd3yrnbuxh6zdqcidmjtfe

Bis(μ-4-phenylpyridineN-oxide-κ2O:O)bis[bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)copper(II)]

Ana I. Ramos, José A. Fernandes, Patrícia Silva, Paulo J. A. Ribeiro-Claro, Susana S. Braga, Filipe A. Almeida Paz
2010 Acta Crystallographica Section E  
Key indicators: single-crystal X-ray study; T = 150 K; mean (C-C) = 0.004 Å; disorder in main residue; R factor = 0.048; wR factor = 0.139; data-to-parameter ratio = 16.2.  ...  The coordination geometry of the Cu II atom is octahedral, exhibiting a typical Jahn-Teller distortion. One trifluoromethyl group is rotationally disordered between two orientations in a 1:1 ratio.  ...  We are grateful to the Fundaçã o para a Ciê ncia e a Tecnologia (FCT, Portugal) for their general financial support, for specific funding toward the purchase of the single-crystal X-ray diffractometer,  ... 
doi:10.1107/s1600536810022567 pmid:21587739 pmcid:PMC3006976 fatcat:6vfbsvunojawlnw6xx632gpmo4

An Item Response Theory–Informed Strategy to Model Total Score Data from Composite Scales

Gustaf J. Wellhagen, Sebastian Ueckert, Maria C. Kjellsson, Mats O. Karlsson
2021 AAPS Journal  
We investigate the method in CV and BI models on both simulated and real data.  ...  Both CV and BI models were improved in fit by IRT-informed disease progression, which allows modellers to precisely and accurately find the corresponding latent variable parameters, and IRT-informed SD  ...  The best BI model was the partially (SD) IRT-informed (SDI-BI) with scaling and IIV on SD(Y| Ψ), with a 309-point OFV difference compared to the standard BI model (S-BI) and one additional parameter.  ... 
doi:10.1208/s12248-021-00555-3 pmid:33728519 pmcid:PMC7966126 fatcat:un6oxnr2dbaazauqkiurzg3yfm

Comparison between Two Local Thermal Non Equilibrium Criteria in Forced Convection through a Porous Channel

azzedine ABDEDOU, Khedidja Bouhadef
2015 Journal of Applied Fluid Mechanics  
The analysis focused on searching thermophysical parameters ranges which validate local thermal equilibrium hypothesis.  ...  Two criteria are used and compared to investigate the local thermal equilibrium assumption in a forced convection through a porous channel.  ...  As Bi increases (Bi=10 & 100) Figure 4 displays the interstitial Biot number effect on the LTNE parameter for the two models (A &B) for different fixed thermal conductivity ratio values.  ... 
doi:10.18869/acadpub.jafm.67.222.22233 fatcat:e4xlxttmmrgnvgticey5qw2kwu

Transit Network Design Based on the Bi-Level Programming

Min SUN
2017 DEStech Transactions on Economics Business and Management  
So we propose a bi-level programming model to design the transit network.  ...  Finally, a simple experiment is performed to demonstrate the efficiency of the bi-level model above.  ...  The fixed cost of the level d bus line between i and j . q N The maximum number of bus lines can be docked on the stop q . , ij d n The number of the buses is needed to purchase on the level d bus line  ... 
doi:10.12783/dtem/icem2017/13144 fatcat:lsurvw4s75dsnhlcqdskzctqm4

N,N′-Bis(3,5-dimethyl-1H-pyrazol-1-ylmethyl)piperazine

El Fatmi Abdeljalil, Ben Larbi Najib, Kerbal Abdelali, Brahim El Bali, Michael Bolte
2006 Acta Crystallographica Section E  
Key indicators Single-crystal X-ray study T = 173 K Mean (C-C) = 0.002 Å R factor = 0.034 wR factor = 0.100 Data-to-parameter ratio = 15.3 For details of how these key indicators were automatically derived  ...  H atoms were located in a difference electron-density map, but they were positioned geometrically and refined with fixed individual displacement parameters [U iso (H) = 1.2U eq (C) or 1.5U eq (methyl C  ...  Comment A perspective view of the the title compound, (I), is shown in Fig. 1 .  ... 
doi:10.1107/s1600536806005654 fatcat:ktb3nrie55g3hghp3sh4iaw5my
« Previous Showing results 1 — 15 out of 90,815 results