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On separators, segregators and time versus space

R. Santhanam
Proceedings 16th Annual IEEE Conference on Computational Complexity  
space-bounded machines.  ...  We give the first extension of the result due to Paul, Pippenger, Szemeredi and Trotter [24] that deterministic linear time is distinct from nondeterministic linear time.  ...  Acknowledgments I am grateful to Andre Nies and Dieter van Melkebeek for reading and commenting on an early version of this paper. Thanks also to an anonymous referee for his suggestions.  ... 
doi:10.1109/ccc.2001.933895 dblp:conf/coco/Santhanam01 fatcat:wxdfkfgatbashf4edejk7xjahm

Simulated evolution process of core-shell microstructures

Tao Qin, HaiPeng Wang, BingBo Wei
2007 Science in China Series G: Physics, Mechanics and Astronomy  
It was revealed by the dynamic simulation process that the formation of core-shell microstructures depends mainly on surface segregation and Marangoni convection.  ...  physics and space science [1] [2] [3] .  ...  In order to explore the influences of surface segregation and Marangoni convection on the concentration field during phase separation, the radial Cu distributions at different times were computed, as presented  ... 
doi:10.1007/s11433-007-0045-7 fatcat:yev36f6xabfsvczyzqn2uyuj7q

Page 378 of The Journal of the Royal Anthropological Institute Vol. 19, Issue 2 [page]

2013 The Journal of the Royal Anthropological Institute  
Horizontal separation (inside versus outside) produces social exclusion (us versus them). This has been the insight.  ...  Critical, poignant, powerful — this has been a timely but none the less supremely horizontal observation: ‘As spaces are enclosed and turned inside’, Teresa Caldeira writes, ‘the outside space is left  ... 

Role of Fluctuation-Induced Interactions in the Axial Segregation of Granular Materials

I. Zuriguel, J. F. Boudet, Y. Amarouchene, H. Kellay
2005 Physical Review Letters  
A complete study of this problem sheds new light on the problem of size segregation in granular materials and points to the importance of fluctuation-induced interactions.  ...  We evidence attractions and repulsions between the large spheres depending on the rotation frequency. The large spheres also show relative position fluctuations which are Gaussian.  ...  After a few rotations, axial segregation starts and the two species separate in bands that are equally spaced: regions consisting mostly of the smaller grains are intercalated by regions containing the  ... 
doi:10.1103/physrevlett.95.258002 pmid:16384511 fatcat:zysythxnkzbnvjyaag4tnpx3n4

Spatial segregation of massive clusters in dwarf galaxies [article]

Bruce G. Elmegreen, A. Adamo, M. Boquien, F. Bournaud, D. Calzetti, D. O. Cook, D.A. Dale, P.-A. Duc, D. M. Elmegreen, J. Fensch, K. Grasha, Hwi Kim (+5 others)
2019 arXiv   pre-print
The relative average minimum projected separations of star clusters in the Legacy ExtraGalactic UV Survey (LEGUS) and in tidal dwarfs around the interacting galaxy NGC 5291 are determined as a function  ...  Class 2 and 3 LEGUS clusters, which have a more irregular internal structure than the compact and symmetric class 1 clusters, are found to be mass segregated in low mass galaxies, which means that the  ...  Method The Relative Average Minimum Projected Separation To gain insight on mass segregation among high and low mass clusters, we consider the average minimum projected separation between clusters as  ... 
arXiv:1912.08293v1 fatcat:qgc7wcxyargmlmyf5e5lsoom7m

Compatible bacterial plasmids are targeted to independent cellular locations in Escherichia coli

T. Q. Ho
2002 EMBO Journal  
in close proximity to one another.  ...  When plasmids F and P1 were localized simultaneously using differentially labeled probes, the majority of foci (~75%) were well separated from each other.  ...  Acknowledgements We are grateful to Donald Helinski, Aresa Toukdarian, Kit Pogliano, Marc Sharp and Igor Konieczny for helpful discussions, to Stuart Austin for providing l-P1:5R, and to Virginia Waters  ... 
doi:10.1093/emboj/21.7.1864 pmid:11927570 pmcid:PMC125944 fatcat:ogqeqsla5nhx7owrk5wrroiu3u

Effect of sequence dispersity on morphology of tapered diblock copolymers from molecular dynamics simulations

William G. Levine, Youngmi Seo, Jonathan R. Brown, Lisa M. Hall
2016 Journal of Chemical Physics  
This tapered region can be varied from 0% (true diblock) to 100% (gradient copolymer) of the polymer length, and this allows some control over the microphase separated domain spacing and other material  ...  Especially at high segregation strength, we find clear differences in polymer conformations and microstructures between these systems.  ...  strength (quantified by χN, the Flory χ parameter times polymer length) and widens the interfacial regions of the microphase separated structures.  ... 
doi:10.1063/1.4972141 pmid:28010074 fatcat:xew3pap23ng5xfy52dzu7jdqna

Effects of reverberation on perceptual segregation of competing voices

John F. Culling, Kathryn I. Hodder, Chaz Yee Toh
2003 Journal of the Acoustical Society of America  
The two voices were either ͑1͒ co-located in virtual space at 0°azimuth or ͑2͒ separately located at Ϯ60°azimuth.  ...  Two experiments investigated the effect of reverberation on listeners' ability to perceptually segregate two competing voices. Culling et al. ͓  ...  separated speech elements across time.  ... 
doi:10.1121/1.1616922 pmid:14650021 fatcat:tf5ienf525gghkijhw2pxtonce

To integrate or not to integrate: Temporal dynamics of hierarchical Bayesian causal inference

Máté Aller, Uta Noppeney, Christopher Petkov
2019 PLoS Biology  
segregation.  ...  To form a percept of the environment, the brain needs to solve the binding problem-inferring whether signals come from a common cause and are integrated or come from independent causes and are segregated  ...  Acknowledgments We thank Ulrik Beierholm and Tim Rohe for kindly providing source code and Á goston Mihalik and Johanna Zumer for very helpful discussions.  ... 
doi:10.1371/journal.pbio.3000210 pmid:30939128 pmcid:PMC6461295 fatcat:s4v2c5s5pnelfohyf5hf6j47ta

Acuity of Spatial Stream Segregation along the Horizontal Azimuth with Non-individualized Head-Related Transfer Functions

Martha M. Shiell, Elia Formisano
2019 Proceedings of the ICA congress  
Spatial separation varied according to an adaptive staircase procedure, and thresholds were calculated both near the midline and in the far left periphery.  ...  We applied a spatial stream segregation task where participants identified the rhythm of a target stream presented with a spatially-separated masker.  ...  In this procedure, participants were instructed to listen to five examples of auditory space, in any order and as many times as needed.  ... 
doi:10.18154/rwth-conv-239407 fatcat:smggpoofcvbu3cwf2qs4r6pnim

Effects of electrode separation between speech and noise signals on consonant identification in cochlear implants

Bom Jun Kwon
2009 Journal of the Acoustical Society of America  
spacings for ten-and six-electrode presentations, respectively.  ...  Noise was routed to either the same ͑the "overlapped" condition͒ or a different set of electrodes ͑the "interlaced" condition͒, where speech and noise electrodes were separated by one-and two-electrode  ...  Two CIS conditions "ten-channel versus six-channel… The two separation conditions in the present study ͑oneelectrode and two-electrode͒ were tested with different CIS processing conditions ͑one in ten-channel  ... 
doi:10.1121/1.3257200 pmid:20000939 pmcid:PMC2803724 fatcat:f36ieine2bfarmxvi46cqrnpmi

Re-Theorising Spatial Segregation: A European Perspective [chapter]

Aneta Piekut
2021 The Urban Book Series  
AbstractResearch on segregation is traditionally associated with studies on residential segregation and the patterns of spatial clustering of minority ethnic groups or residents with immigrant backgrounds  ...  This chapter examines European research on spatial segregation through various social science disciplines, including urban studies, sociology, psychology, spatial and human geography.  ...  They dubbed this form of spatial separation 'space-time trajectories of segregation.'  ... 
doi:10.1007/978-3-030-74544-8_2 fatcat:p72fia3rnnd6van7rh5paaytxq

Particle-laden flows forced by the disperse phase: Comparison between Lagrangian and Eulerian simulations

Aymeric Vié, Hadi Pouransari, Rémi Zamansky, Ali Mani
2016 International Journal of Multiphase Flow  
Separate investigations are developed for cases with and without buoyancy driven turbulence.  ...  PoF 2014) and have assessed capabilities of Eulerian methods in capturing particle segregation, as well as statistics of the temperature and velocity fields.  ...  Segregation (top) and Temperature variance (bottom) versus time for τp = 0.01, 0.1 and 0.8.  ... 
doi:10.1016/j.ijmultiphaseflow.2015.10.010 fatcat:35axwno6o5fhjabbvj7sasb7a4

Statistically Segregated k-Space Sampling for Accelerating Multiple-Acquisition MRI [article]

L Kerem Senel, Toygan Kilic, Alper Gungor, Emre Kopanoglu, H Emre Guven, Emine U Saritas, Aykut Koc, Tolga Cukur
2017 arXiv   pre-print
Segregated sampling achieves significantly improved quality in both Fourier and compressed-sensing reconstructions of multiple-acquisition datasets.  ...  Comprehensive simulations and in vivo results are presented for phase-cycled balanced steady-state free precession and multi-echo T_2-weighted imaging.  ...  Alternatively, k-space can be split into annular segments [56] , and the proposed method can be performed on each segment separately.  ... 
arXiv:1710.00532v1 fatcat:qassmq5hu5ezzazxm2dacj3fi4

Dynamic mixing in magma bodies: Theory, simulations, and implications

Curtis M. Oldenburg, Frank J. Spera, David A. Yuen, Granville Sewell
1989 Journal of Geophysical Research  
of scales in both space and time.  ...  Magma mixing occurs by complex time-dependent flows with numerous flow reversals associated with local unmixing events superimposed on a larger time scale process in which the intensity of segregation  ...  The staffs of the Minnesota Supercomputer Institute, NASA Ames Research Center, and San Diego Supercomputer Center have been helpful at various times throughout this project.  ... 
doi:10.1029/jb094ib07p09215 fatcat:yilk5t66tvgmhgayo5fg7zcdla
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