Results 61 to 70 of about 10,907,974 (296)
Validating linear restrictions in linear regression models with general error structure [PDF]
, 2006 A new method for testing linear restrictions in linear regression models is suggested. It allows to validate the linear restriction, up to a specified approximation error and with a specified error probability.
Holzmann, Hajo +2 more
core +1 more source
Vessel Segmentation in Retinal Images Using Multi-scale Line Operator and K-Means Clustering
Journal of Medical Signals and Sensors, 2014 Detecting blood vessels is a vital task in retinal image analysis. The task is more challenging with the presence of bright and dark lesions in retinal images. Here, a method is proposed to detect vessels in both normal and abnormal retinal fundus images
Vahid Mohammadi Saffarzadeh +2 more
doaj
Design and demonstration of a distributed-coupling linear accelerator structure
Physical Review Accelerators and Beams, 2020 We present a topology for linear accelerators (linacs) in which the power is distributed to the cavities through a waveguide with periodic apertures that guarantees the correct phases and amplitudes along the structure length.
Sami Tantawi +4 more
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Peritoneal dialysis (PD) is an established home‐based kidney replacement therapy (KRT), but its uptake remains low in Japan. We evaluated whether individualized education in a dedicated outpatient clinic was associated with the initiation of PD.
Yasuko Ito +7 more
wiley +1 more source
Linear property and optimal design of MARS-like cryptographic structure
Tongxin xuebao, 2021 A MARS-like cryptographic structure was proposed and some linear properties of this cryptographic structure were given.An optimal design method of linear transformation in MARS-like cryptographic structure was also given.Concretely, by analyzing the ...
Nianping WANG, Lirong HONG
doaj +2 more sources
DEVELOPING OPTIMAL PRODUCTION STRUCTURE WITH LINEAR PROGRAMMING MODEL [PDF]
Annals of the University of Oradea: Economic Science, 2018 As nowadays, besides productions of food and forage materials, herbaceous and woody energy crops can be used to optimize the production structure, I have found it practical to present a model that is based on a Simplex algorithm.
Margit Csipkés
doaj
FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
wiley +1 more source
FEBS Letters, EarlyView.Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes +4 more
wiley +1 more source
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Irregularity in the structure of linear formations
الاكاديميThe research entitled (Irregularity in the Structure of Calligraphy ) deals with how to leave the fixed patterns to unfamiliar linear patterns that break the monotony of the organization and activate the dynamic directionality, thus bypassing the ...
Ashraf Kamel Abdel Ameer +1 more
doaj +1 more source