scholarly journals A Size Expansion Analysis using a Toy Model based on the Equivalence between Bondi K–Factor and Exponential Function

2015 ◽  
Vol 60 (1) ◽  
pp. 93-96
Author(s):  
Masataka Shimojo
2017 ◽  
Author(s):  
Krishna Asvalayana ◽  
Samadhan Ghubade ◽  
Sharayu Paranjpe ◽  
Anil Gore

AbstractAnnual ADR report counts of opioid drugs are examined to develop a candidate index of overall safety of a drug. Actual counts for various drugs have been sourced from www.vigiaccess.org. A feature found to be common to all drugs considered is that an exponential function adequately describes the pattern of cumulative counts. In the exponential model, the parameter in the exponent (rate constant) is robust and remains the same whether counts are corrected for exposure or not. We propose use of this rate constant as ‘adversity index’ of a drug. Drugs in use can be ranked by value of adversity index, lower value suggesting safer drug.Key pointsCumulative total of annual ADR report counts of opioid drugs follows an exponential pattern. Rate constant in the model is independent of volume of use of the drug. Hence it is a suitable index of overall safety.


2020 ◽  
Vol 43 ◽  
Author(s):  
Peter Dayan

Abstract Bayesian decision theory provides a simple formal elucidation of some of the ways that representation and representational abstraction are involved with, and exploit, both prediction and its rather distant cousin, predictive coding. Both model-free and model-based methods are involved.


2001 ◽  
Vol 7 (S2) ◽  
pp. 578-579
Author(s):  
David W. Knowles ◽  
Sophie A. Lelièvre ◽  
Carlos Ortiz de Solόrzano ◽  
Stephen J. Lockett ◽  
Mina J. Bissell ◽  
...  

The extracellular matrix (ECM) plays a critical role in directing cell behaviour and morphogenesis by regulating gene expression and nuclear organization. Using non-malignant (S1) human mammary epithelial cells (HMECs), it was previously shown that ECM-induced morphogenesis is accompanied by the redistribution of nuclear mitotic apparatus (NuMA) protein from a diffuse pattern in proliferating cells, to a multi-focal pattern as HMECs growth arrested and completed morphogenesis . A process taking 10 to 14 days.To further investigate the link between NuMA distribution and the growth stage of HMECs, we have investigated the distribution of NuMA in non-malignant S1 cells and their malignant, T4, counter-part using a novel model-based image analysis technique. This technique, based on a multi-scale Gaussian blur analysis (Figure 1), quantifies the size of punctate features in an image. Cells were cultured in the presence and absence of a reconstituted basement membrane (rBM) and imaged in 3D using confocal microscopy, for fluorescently labeled monoclonal antibodies to NuMA (fαNuMA) and fluorescently labeled total DNA.


Author(s):  
Charles Bouveyron ◽  
Gilles Celeux ◽  
T. Brendan Murphy ◽  
Adrian E. Raftery

Author(s):  
Jonathan Jacky ◽  
Margus Veanes ◽  
Colin Campbell ◽  
Wolfram Schulte
Keyword(s):  

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