Results 71 to 80 of about 6,014 (285)

On the Structure of Balanced Incomplete Block Designs

The Annals of Mathematical Statistics, 1952
In this paper there are developed for the first time analytical methods for the investigation of the structure of unsymmetrical balanced incomplete block designs. Two unsymmetrical balanced incomplete block designs are proved to be impossible, and for such designs in general, inequalities are found for the number of treatments common to two blocks.
openaire   +3 more sources

A Watermarking Approach Using Balanced Incomplete Block Designs for Watermark Design [PDF]

, 2009
[[abstract]]Digital copyright protection has become a more and more serious problem. Digital watermarking is a potential solution by which copyright information can be embedded into digital contents.
Hsiu-Te Su ;Zhi-Fang Yang
core  

Partially Balanced Incomplete Block Designs from Weakly Divisible Nearrings [PDF]

, 2005
In [[6] Riv. Mat. Univ. Parma 11 (2) (1970) 79–96] Ferrero demonstrates a connection between a restricted class of planar nearrings and balanced incomplete block designs.
BENINI, Anna, BENINI A, Benini, A., Morini, F., MORINI F., MORINI, Fiorenza   +5 more
core   +1 more source

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling, Mark D. Parker, Sven Kerst, Richard A. Pasternack, Jacob Tondreau, Marjolein Breur, Gemma M. van Rooijen‐van Leeuwen, Davide Tonduti, Ettore Salsano, Alejandra Darling, Joanna A. E. van Wijk, Susanna Törnroth‐Horsefield, Marianna Bugiani, Petra J. W. Pouwels, Quinten Waisfisz, Marjo S. van der Knaap, Rogier Min   +16 more
wiley   +1 more source

ON D-OPTIMAL CHEMICAL BALANCE WEIGHING DESIGNS

Acta Universitatis Lodziensis. Folia Oeconomica, 2015
The paper deals with the problem of determining the chemical balance weighing designs satisfying the criterion of D-optimality under assumption that the measurement errors are equal correlated and they have the same variances.
Bronisław Ceranka, Małgorzata Graczyk
doaj  

EXPLORATION OF FINITE GROUP APPROACH IN BALANCED INCOMPLETE BLOCK DESIGN

Academy Journal of Science and Engineering
The development of block designs continues to be an unresolved challenge in combinatorial design, with several forms, the most notable being the balanced incomplete block designs (BIBDs).
Ukeme Akra, Anthony A. Isaac, Itoro T. Michael, Uwem A. Akapn   +3 more
doaj   +1 more source

An adaptable implementation package targeting evidence-based indicators in primary care: A pragmatic cluster-randomised evaluation.

PLoS Medicine, 2020
BackgroundIn primary care, multiple priorities and system pressures make closing the gap between evidence and practice challenging. Most implementation studies focus on single conditions, limiting generalisability. We compared an adaptable implementation
Thomas A Willis, Michelle Collinson, Liz Glidewell, Amanda J Farrin, Michael Holland, David Meads, Claire Hulme, Duncan Petty, Sarah Alderson, Suzanne Hartley, Armando Vargas-Palacios, Paul Carder, Stella Johnson, Robbie Foy, ASPIRE programme team   +14 more
doaj   +1 more source

On a Method of Construction of Balanced Incomplete Block Designs [PDF]

, 1986
This paper gives a method of construction of balanced incomplete block designs (BIBDs) and group divisible designs from the existing self complementary BIBDs.
R. H. Malgaonkar, D. V. S. Sastry
core   +1 more source

White Matter Hyperintensity Burden and Short‐Interval Change Associated With Sleep Apnoea in the UK Biobank

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Purpose White matter hyperintensities (WMH) are a core neuroimaging marker of cerebral small vessel disease (CSVD). Sleep apnoea (SA) is a recognized vascular risk factor, but its associations with regional WMH burden, short‐interval WMH change and cognitive performance in population‐based cohorts remain incompletely defined. We
Peng Cheng, Diego Z. Carvalho, Shahid Karim, Anwar Chahal, Virend K. Somers   +4 more
wiley   +1 more source

On the Photonic Implementation of Universal Quantum Gates, Bell States Preparation Circuit, Quantum Relay and Quantum LDPC Encoders and Decoders

IEEE Photonics Journal, 2010
We show that any family of universal quantum gates can be implemented based on a single optical hybrid/Mach-Zehnder interferometer (MZI)/directional coupler (DC) and either a highly nonlinear optical fiber or a tap coupler with an avalanche photodiode ...
Ivan B. Djordjevic
doaj   +1 more source