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Wide-area cooperative storage with CFS

by Frank Dabek, M. Frans Kaashoek, David Karger, Robert Morris, Ion Stoica , 2001
"... The Cooperative File System (CFS) is a new peer-to-peer readonly storage system that provides provable guarantees for the efficiency, robustness, and load-balance of file storage and retrieval. CFS does this with a completely decentralized architecture that can scale to large systems. CFS servers pr ..."
Abstract - Cited by 999 (53 self) - Add to MetaCart
that CFS is scalable: with 4,096 servers, looking up a block of data involves contacting only seven servers. The tests also demonstrate nearly perfect robustness and unimpaired performance even when as many as half the servers fail.

Tracking multiple items through occlusion: Clues to visual objecthood

by Brian J. Scholl, Zenon W. Pylyshyn - Cognitive Psychology , 1999
"... In three experiments, subjects attempted to track multiple items as they moved independently and unpredictably about a display. Performance was not impaired when the items were briefly (but completely) occluded at various times during their motion, suggesting that occlusion is taken into account whe ..."
Abstract - Cited by 125 (20 self) - Add to MetaCart
when computing enduring perceptual objecthood. Unimpaired performance required the presence of accretion and deletion cues along fixed contours at the occluding boundaries. Performance was impaired when items were present on the visual field at the same times and to the same degrees as in the occlusion

Another advanced test of theory of mind: Evidence from very high functioning adults with autism or Asperger syndrome

by Simon Baron-cohen, Therese Jolliffe, Catherine Mortimore, Mary Robertson - Journal of Child Psychology and Psychiatry , 1997
"... Previous studies have found a subgroup of people with autism or Asperger Syndrome who pass second-order tests of theory of mind. However, such tests have a ceiling in developmental terms corresponding to a mental age of about 6 years. It is therefore impossible to say if such individuals are intact ..."
Abstract - Cited by 208 (17 self) - Add to MetaCart
or impaired in their theory of mind skills. We report the performance of very high functioning adults with autism or Asperger Syndrome on an adult test of theory of mind ability. The task involved inferring the mental state of a person just from the information in photographs of a person's eyes. Relative

Semantic dementia without surface dyslexia in Spanish: Unimpaired reading with impaired semantics

by Maximiliano A Wilson , Macarena Martínez-Cuitiño , 2012
"... Abstract. Surface dyslexia has been attributed to an overreliance on the sub-lexical route for reading. Typically, surface dyslexic patients commit regularisation errors when reading irregular words. Also, semantic dementia has often been associated with surface dyslexia, leading to some explanatio ..."
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-speaking semantic dementia patient to be reported who shows unimpaired reading of non-words, regular words, and -most strikingly -irregular loan words. M.B. has severely impaired comprehension of the same words he reads correctly (whether regular or irregular). We argue that M.B.'s pattern of performance shows

Self-control relies on glucose as a limited energy source: Willpower is more than a metaphor

by Matthew T. Gailliot, Roy F. Baumeister, C. Nathan Dewall, Jon K. Maner, E. Ashby Plant, Dianne M. Tice, Lauren E. Brewer, Brandon J. Schmeichel - Journal of Personality and Social Psychology , 2007
"... The present work suggests that self-control relies on glucose as a limited energy source. Laboratory tests of self-control (i.e., the Stroop task, thought suppression, emotion regulation, attention control) and of social behaviors (i.e., helping behavior, coping with thoughts of death, stifling prej ..."
Abstract - Cited by 153 (17 self) - Add to MetaCart
prejudice during an interracial interaction) showed that (a) acts of self-control reduced blood glucose levels, (b) low levels of blood glucose after an initial self-control task predicted poor performance on a subsequent self-control task, and (c) initial acts of self-control impaired performance

Theta-Frequency Synaptic Potentiation in CA1 In Vitro Distinguishes Cognitively Impaired from Unimpaired Aged Fischer 344 Rats

by Geoffrey C. Tombaugh, Wayne B. Rowe, Ana R. Chow, Timothy H. Michael, Gregory M. Rose
"... Hippocampal-dependent learning and memory deficits have been well documented in aging rodents. The results of several recent studies have suggested that these deficits arise from weakened synaptic plasticity within the hippocampus. In the present study, we examined the relationship between hippocamp ..."
Abstract - Cited by 5 (0 self) - Add to MetaCart
in the Morris water maze. LTP at 5 Hz in aged rats that did not show learning deficits was similar to that seen in young (4–6 months) controls. We also found that 5 Hz LTP amplitude strongly correlated with individual learning performance among aged rats. The difference in 5 Hz LTP magnitude among aged rats

Research Article Sound Lateralization Test Distinguishes Unimpaired MS Patients from Healthy Controls

by Joshua H. Bacon, Ilya Kister, Tamar E. Bacon, Eliana Pasternak, Yael Strauchler, Joseph Herbert
"... License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. There is an urgent need to develop a practical and reliable clinical measure of disease progression in early and mild MS. We hypothesized that a test of sound laterali ..."
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performance ofMS subjects with variable disability and healthy subjects on Sound Lateralization Test (SLT) and two speed-of-processing tasks. Design. 42 healthy controls and 90 subjects with clinically definite MS, divided into no, mild, and moderate disability strata, were administered the Symbol Digit

Inflammation and Renal Function after a Four-Year Follow-Up in Subjects with Unimpaired Glomerular Filtration Rate: Results from the Observational, Population-Based CARLA Cohort

by Daniel Medenwald, Matthias Girndt, Er Kluttig, Sebastian Nuding, Daniel Tiller, Joachim J. Thiery, Karin H. Greiser, Johannes Haerting, Karl Werdan
"... Background: There is evidence that chronic inflammation is associated with the progression/development of chronic renal failure; however, relations in subjects with preserved renal function remain insufficiently understood. Objective: To examine the association of inflammation with the development o ..."
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of renal failure in a cohort of the elderly general population. Methods: After excluding subjects with reduced estimated glomerular filtration rate (eGFR,60 mL/min/1.73 m2) and missing data, the cohort incorporated 785 men and 659 women (aged 45–83 years). Follow-up was performed four years after baseline

The information capacity of visual attention

by Preeti Verghese, T Denis G. Pelli - Investigative Ophthalmology and Visual Sciences, 31 (SuppI , 1990
"... Is visual attention mediated by a general-purpose processor with a small data capacity? Such an attentive processor could perform a wide range of transformations upon a small amount of image data. We suggest that this limited capacity corresponds to a fixed amount of information, measured in bits. W ..."
Abstract - Cited by 28 (2 self) - Add to MetaCart
square in a field of flashing squares. Performance of these tasks is perfect up to a critical number of elements (the span of attention) and then falls as the number of elements increases beyond this critical number. The display information required for unimpaired performance in each of these tasks

Orthogonal Frequency Division Multiplex Synchronisation Techniques for Wireless Local Area Networks

by P. Cherriman, T. Keller, L. Hanzo - IEEE PIMRC’96, Taiwan , 1996
"... Abstract: The video performance of the Median wireless asynchronous transfer mode (WATM) system is evaluated for a range of application scenarios using the H.263 video codec and a novel packetisation and acknowledgement scheme. The video resolutions and system parameters used are summarised in Table ..."
Abstract - Cited by 76 (13 self) - Add to MetaCart
Abstract: The video performance of the Median wireless asynchronous transfer mode (WATM) system is evaluated for a range of application scenarios using the H.263 video codec and a novel packetisation and acknowledgement scheme. The video resolutions and system parameters used are summarised
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