Filters








423 Hits in 4.9 sec

Disentangling Random and Cyclic Effects in Time-Lapse Sequences [article]

Erik Härkönen, Miika Aittala, Tuomas Kynkäänniemi, Samuli Laine, Timo Aila, Jaakko Lehtinen
2022 arXiv   pre-print
We introduce the problem of disentangling time-lapse sequences in a way that allows separate, after-the-fact control of overall trends, cyclic effects, and random effects in the images, and describe a  ...  However, playing a long time-lapse sequence back as a video often results in distracting flicker due to random effects, such as weather, as well as cyclic effects, such as the day-night cycle.  ...  ACKNOWLEDGMENTS We thank Tero Karras for insightful comments and feedback. Mielipidepalsta is the work of visual artists Emma Rönnholm and Salla Vapaavuori.  ... 
arXiv:2207.01413v1 fatcat:lkgtyzuyszgljgohu5qcb3solq

Biomathematics and cell kinetics

N. MacDonald
1978 Nature  
such as autoradiography, time lapse cinematography and synchronisation of cell splittings.  ...  . ~81; 1977) have looked at cyclic AMPclependent protein kinase in cyclic A.MP-resistant clones of S49 mouse lymphoma cells.  ... 
doi:10.1038/272310a0 pmid:634354 fatcat:3du5litfgjfvvgfjqu4zwrjjmq

Decoherence predictions in a superconductive quantum device using the steepest-entropy-ascent quantum thermodynamics framework [article]

J. A. Montanez-Barrera, M. R. von Spakovsky, C. E. Damian-Ascencio, S. Cano-Andrade
2022 arXiv   pre-print
Three scenarios, an inversion recovery experiment, a Ramsey experiment, and a two-qubit entanglement-disentanglement experiment, are used to demonstrate the applicability of this framework, which provides  ...  In this work, the decoherence phenomena are addressed from the perspective of the steepest-entropy-ascent quantum thermodynamics (SEAQT) framework in which the noise is in part seen as internal to the  ...  The inversion recovery and the Ramsey experiments are repeated 4 times with some time lapse between each experiment.  ... 
arXiv:2203.08329v2 fatcat:gsc4w573f5bfxovfikhs5qqpee

ABM of osteoblast's mechanotransduction pathway: time patterns of critical events [article]

Gianluca Ascolani, Timothy M. Skerry, Damien Lacroix, Enrico Dall'Ara, Aban Shuaib
2019 arXiv   pre-print
Mechanotransduction in bone cells plays a pivotal role in osteoblast differentiation and bone remodelling.  ...  process among molecules in the cytoplasm, nuclear and extracellular domains.  ...  Subordination theory and detection of events In this work, we propose a numerical method to disentangle random processes called subordinated processes [32] into their respective parent process and directing  ... 
arXiv:1902.08707v1 fatcat:cyf7a7q3e5bhtfw7wasfccle3a

Flow stability for dynamic community detection [article]

Alexandre Bovet, Jean-Charles Delvenne, Renaud Lambiotte
2021 arXiv   pre-print
We show that our method provides a natural way to disentangle the different natural dynamical scales present in a system. We demonstrate our method abilities on synthetic and real-world examples.  ...  stationary process, or sequences of different stationary epochs.  ...  Critically, most methods aggregate the temporal dimension over a sequence of time windows, transforming the network in a sequence of static networks defined on a discrete time grid, and either apply standard  ... 
arXiv:2101.06131v2 fatcat:ra3ou4t35fe2bcvrir2hxkbmla

What is a Business Cycle? [chapter]

Victor Zarnowitz
1992 The Business Cycle: Theories and Evidence  
So monetary and real disturbances (or unusual developments) coincided, and their effects are difficult to disentangle.  ...  Part 4 discusses the role of endogenous cyclical variables, the outside shocks of various types, the systematic timing sequences, and the regularities of cyclical comovements and amplitudes.  ...  Entries in columns 7 and 8 correspond to the dates in column 1 th. entries in coLumns 9 and 10 correspond to the dates in column 2.  ... 
doi:10.1007/978-94-011-2956-5_1 fatcat:owjmzwtd4jcctgbomugy6vp5fi

An Adaptive Physical Activity Intervention for Overweight Adults: A Randomized Controlled Trial

Marc A. Adams, James F. Sallis, Gregory J. Norman, Melbourne F. Hovell, Eric B. Hekler, Elyse Perata, Reury FP. Bacurau
2013 PLoS ONE  
Results: A random-effects repeated-measures model accounted for 180 repeated measures and autocorrelation.  ...  Adaptive interventions are dynamic; components or doses change in response to short-term variations in participant's performance.  ...  A 1:1 random allocation was determined by the first author using a computer generated random number sequence.  ... 
doi:10.1371/journal.pone.0082901 pmid:24349392 pmcid:PMC3857300 fatcat:kwgeefksh5b6rixdza2wkvwjbq

Rapid Synaptogenesis in the Nucleus Accumbens Is Induced by a Single Cocaine Administration and Stabilized by Mitogen-Activated Protein Kinase Interacting Kinase-1 Activity

Marc Dos Santos, Marine Salery, Benoit Forget, Maria Alexandra Garcia Perez, Sandrine Betuing, Thomas Boudier, Peter Vanhoutte, Jocelyne Caboche, Nicolas Heck
2017 Biological Psychiatry  
ACKNOWLEDGEMENTS AND DISCLOSURES We would like to thank Jean-Antoine Girault ( The authors report no biomedical financial interests or potential conflicts of interest. ** *  ...  of spines observed in time-lapse were then explored.  ...  Two-way ANOVA and Bonferroni post-test, Drug effect: *, Time effect: °. (C) Immunostaining for pMNK-1 in D1-SPN labeled with tdTomato reveal dendritic localization of pMNK-1.  ... 
doi:10.1016/j.biopsych.2017.03.014 pmid:28545678 fatcat:qguyfayzlfe3dgh4mxdogbywwu

Cell adhesion and response to synthetic nanopatterned environments by steering receptor clustering and spatial location

Elisabetta Ada Cavalcanti‐Adam, Daniel Aydin, Vera Catherine Hirschfeld‐Warneken, Joachim Pius Spatz
2008 HFSP Journal  
We review the findings about the regulation of cell adhesion and focal adhesion assembly by micro-and nanopatterns and discuss the possible use of substrate stiffness and patterning in mimicking both physical  ...  These systems allow for studying protein clustering in cells and characterizing the signaling response induced by, e.g., integrin activation.  ...  ACKNOWLEDGMENTS We thank the Landesstiftung Baden-Württemberg in the frame of the program "Spitzenforschung Baden-Württemberg" and the Max-Planck-Society for the constant financial support.  ... 
doi:10.2976/1.2976662 pmid:19404439 pmcid:PMC2639948 fatcat:tkmdyegwonar3aplpw6cye5q3a

Fish biodiversity and inferred abundance in a highly valued coastal temperate environment: the inner Queen Charlotte Sound, New Zealand

Rodelyn Jaksons, Peter Bell, Peter Jaksons, Denham Cook, Haseeb Randhawa
2022 Marine and Freshwater Research  
, chimaera, and cephalopod) in the region.  ...  Context The inner Queen Charlotte Sound–Tōtaranui is a focal and emblematic coastal area in New Zealand that is valued by diverse stakeholders. Fish diversity in the region is not well characterised.  ...  We thank many staff from The New Zealand Institute for Plant and Food Research Limited, including Greg Knox, Sharon Ford, Gerard Janssen, Jason Hamill, and Alistair Jerrett, for their support in field  ... 
doi:10.1071/mf21247 fatcat:bezadcznoveqbetvcxgavgvjna

Crop Mapping from Sentinel-1 Polarimetric Time-Series with a Deep Neural Network

Yang Qu, Wenzhi Zhao, Zhanliang Yuan, Jiage Chen
2020 Remote Sensing  
Consequently, the strategy proposed in this research is effective and promising for crop mapping.  ...  Timely and accurate agricultural information is essential for food security assessment and agricultural management.  ...  of cyclic and convolution.  ... 
doi:10.3390/rs12152493 fatcat:bd3vzotveffh7dhr2t5jjyb2zu

Recent advances in understanding vertebrate segmentation

Tomás Pais-de-Azevedo, Ramiro Magno, Isabel Duarte, Isabel Palmeirim
2018 F1000Research  
Currently, in 2017, new experimental techniques, such as new experimental models, real-time imaging of gene expression, ex vivo live single cell tracking, and simplified transgenics approaches, are revealing  ...  .: Genetic oscillations. a doppler effect in embryonic pattern formation. Science. 2014; 345(6193): 222-225. ISSN 1095-9203. PubMed Abstract | Publisher Full Text 47.  ...  Acknowledgements TPA, RM, ID, and IP would like to respectfully thank Regina Pais de Azevedo, Dília de Andrade Magno, Glória dos Santos (Duarte), and Amélia Marques Palmeirim, respectively, for developing  ... 
doi:10.12688/f1000research.12369.1 pmid:29416855 pmcid:PMC5782405 fatcat:5juj3fbk3fav3lfgjnc3yi3xsm

Two distinct functions for PI3-kinases in macropinocytosis

O. Hoeller, P. Bolourani, J. Clark, L. R. Stephens, P. T. Hawkins, O. D. Weiner, G. Weeks, R. R. Kay
2013 Journal of Cell Science  
Chemotaxis to folate and phagocytosis of bacteria proceed normally in the quintuple mutant but macropinocytosis is abolished.  ...  Binding assays show that RasG and RasS interact most strongly with PI3K1/2 and PI3K4, and single mutants of either Ras have severe macropinocytosis defects.  ...  Acknowledgements We thank Anna Kielkowska for help with PtdIns(3,4,5)P 3 measurements, Dictybase for strains and the Japanese cDNA consortium for cDNA clone SLF434.  ... 
doi:10.1242/jcs.134015 pmid:23843627 pmcid:PMC3772393 fatcat:kxmacz4upbhixld6qzkrkeabty

Phenotiki: an open software and hardware platform for affordable and easy image-based phenotyping of rosette-shaped plants

Massimo Minervini, Mario V. Giuffrida, Pierdomenico Perata, Sotirios A. Tsaftaris
2017 The Plant Journal  
We also perform extensive validations with external measurements and with higher fidelity equipment, and find no loss in statistical accuracy when we use the affordable setting that we propose.  ...  In this paper, we present a proof-of-concept validation experiment on top-view images of 24 Arabidopsis plants in a combination of genotypes that has not been compared previously.  ...  We acknowledge the help of Fabiana Zollo in the implementation on BisQue. Finally, we thank Hanno Scharr, Alistair McCormick and Antonio Masi for providing feedback on the manuscript.  ... 
doi:10.1111/tpj.13472 pmid:28066963 fatcat:jihbtp52hnab3hd42o4itftxze

Temporal Entrainment in Overlapping Speech

Marcin Włodarczak
2014 Zenodo  
PhD thesis, Department of Lingustics and Literary Studies, Bielefeld University  ...  In the light of the non-random timing of overlap initiation both within VTVs and IAIs, the relation between the two observed effects becomes of interest. Can one be explained in terms of the other?  ...  When overlaps were partitioned depending on regularity of preceding vocalic onsets, it became apparent that more regular sequences result in greater deviations from random overlap timing.  ... 
doi:10.5281/zenodo.3234495 fatcat:pqk5ykshpfcynh3idotxdzmdgi
« Previous Showing results 1 — 15 out of 423 results