Results 41 to 50 of about 400,273 (297)

Overestimated Fog-Top Entrainment in WRF Simulation Leading to Unrealistic Dissipation of Sea Fog: A Case Study

Remote Sensing
Entrainment at the top of the planetary boundary layer (PBL) is of significant importance because it controls the upward growth of the PBL height. An option called ysu_topdown_pblmix, which provides a parameterization of fog-top entrainment, has been ...
Li Zhang, Hao Shi, Shanhong Gao, Shun Li
doaj   +1 more source

Bad Communities with High Modularity [PDF]

, 2013
In this paper we discuss some problematic aspects of Newman's modularity function QN. Given a graph G, the modularity of G can be written as QN = Qf -Q0, where Qf is the intracluster edge fraction of G and Q0 is the expected intracluster edge fraction of
Kehagias, Athanasios, Pitsoulis, Leonidas   +1 more
core   +2 more sources

Undernutrition Overestimated

Economic Development and Cultural Change, 2002
There is only one set of estimates of the prevalence of chronic undernutrition world-wide. These estimates emanate from the FAO and are claimed to be comparable across countries. In this paper it is demonstrated that the FAO has used an estimation model (and data) that induce bias in the estimated overall prevalence of undernutrition. The bias is found
openaire   +2 more sources

The number of patients and events required to limit the risk of overestimation of intervention effects in meta-analysis--a simulation study. [PDF]

PLoS ONE, 2011
BackgroundMeta-analyses including a limited number of patients and events are prone to yield overestimated intervention effect estimates. While many assume bias is the cause of overestimation, theoretical considerations suggest that random error may be ...
Kristian Thorlund, Georgina Imberger, Michael Walsh, Rong Chu, Christian Gluud, Jørn Wetterslev, Gordon Guyatt, Philip J Devereaux, Lehana Thabane   +8 more
doaj   +1 more source

Reducing bias in auditory duration reproduction by integrating the reproduced signal [PDF]

, 2013
Duration estimation is known to be far from veridical and to differ for sensory estimates and motor reproduction. To investigate how these differential estimates are integrated for estimating or reproducing a duration and to examine sensorimotor biases ...
A Angrilli, A Tomassini, A Wing, A Zaidel, CV Buhusi, D Alais, D Alais, D Bueti, D Bueti, D Bueti, D Bueti, D Burr, DH Brainard, DV Meegan, FH Petzschner, FH Petzschner, G Aschersleben, GM Cicchini, Hermann J. Müller, I Ley, I Oruc, IB Witten, J Burge, J Gibbon, J Hartcher-O'Brien, J Park, JH Wearden, JT Coull, JT Walker, K Takahashi, K Yarrow, K Yarrow, K-M Chen, KJ Jantzen, KP Kording, L Iordanescu, L Jäncke, LA Jones, M Di Luca, M Gori, M Jazayeri, M Kuschel, M Treisman, MC Morrone, MO Ernst, P Binda, P-L Gamache, R Teghtsoonian, RB Ivry, RB Welch, RJ Zatorre, RM Church, S Ganzenmüller, S Goldstone, Stephanie Ganzenmüller, SW Keele, V Pariyadath, V van Wassenhove, Warren H. Meck, WJ Matthews, WJ Matthews, Z Shi, Z Shi, Zhuanghua Shi   +63 more
core   +3 more sources

Testing the order of a model

, 2006
This paper deals with order identification for nested models in the i.i.d. framework. We study the asymptotic efficiency of two generalized likelihood ratio tests of the order.
Chambaz, Antoine
core   +1 more source

Impact of overestimation of fractional flow reserve by adenosine on anatomical–functional mismatch

Scientific Reports, 2022
Adenosine occasionally results in overestimation of fractional flow reserve (FFR) values, compared with other hyperemic stimuli. We aimed to elucidate the association of overestimation of FFR by adenosine with anatomically significant but functionally ...
Hidenari Matsumoto, Ryota Masaki, Satoshi Higuchi, Hideaki Tanaka, Seita Kondo, Hiroaki Tsujita, Toshiro Shinke   +6 more
doaj   +1 more source

Why GPS makes distances bigger than they are [PDF]

, 2015
Global Navigation Satellite Systems (GNSS), such as the Global Positioning System (GPS), are among the most important sensors for movement analysis. GPS is widely used to record the trajectories of vehicles, animals and human beings.
Brunauer, Richard, Ranacher, Peter, Reich, Siegfried, Trutschnig, Wolfgang, Van der Spek, Stefan Christiaan   +4 more
core   +2 more sources

Negative emotionality influences the effects of emotion on time perception [PDF]

, 2008
In this study I used a temporal bisection task to test if greater overestimation of time due to negative emotion is moderated by individual differences in negative emotionality.
Tipples, Jason
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source