Results 51 to 60 of about 17,937 (310)

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

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

open access: yes, 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  

Experimentos em parcelas subdivididas com tratamentos primários em blocos incompletos parcialmente balanceados I: uma solução das equações normais Split-plot experiments with main treatments in partially balanced incomplete blocks I: a solution of the normal equations

open access: yesScientia Agricola, 1995
O objetivo deste trabalho foi realizar um estudo para obtenção de uma solução adequada das equações normais de experimentos em parcelas subdivididas com tratamentos primários dispostos segundo uma estrutura de blocos incompletos parcialmente balanceados ...
A.R. de Morais, M.C Stolf Nogueira
doaj   +1 more source

A best–worst scaling experiment to prioritize concern about ethical issues in citizen science reveals heterogeneity on people-level v. data-level issues

open access: yesScientific Reports, 2021
“Citizen science” refers to the participation of lay individuals in scientific studies and other activities having scientific objectives. Citizen science gives rise to unique ethical issues that stem from the potentially multifaceted contributions of ...
Christi J. Guerrini   +3 more
doaj   +1 more source

Construction of a reading literacy test item bank for fourth graders based on item response theory

open access: yesFrontiers in Psychology, 2023
IntroductionReading literacy is not only central to students’ academic success during their school years but also crucial to their personal development in their later life.
Qishan Chen   +6 more
doaj   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

open access: yesMolecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu   +10 more
wiley   +1 more source

A Note on the Balanced Incomplete Block Designs

open access: yesThe Annals of Mathematical Statistics, 1956
It is a well-known property of the BIB design that all treatment effects are estimated with the same accuracy, i.e., that the variances of the estimates of the treatment effects are all equal and their covariances are also all equal. We show that the converse is also true. If the estimates of the treatment effects in an incomplete block design all have
openaire   +2 more sources

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

open access: yesFEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik   +6 more
wiley   +1 more source

A New Solution of a Balanced Incomplete Block Design

open access: yes, 1987
Solution of a new balanced incomplete block design for v=22, b=44, r=l4, k=7 and λ=4 is given. The design is obtained using the method of symmetrically repeated differences.
Manjit Singh, Jagroop Kaur
core   +1 more source

Convex Cone Conditions on the Structure of Designs [PDF]

open access: yes, 2003
Various known and original inequalities concerning the structure of combinatorial designs are established using polyhedral cones generated by incidence matrices. This work begins by giving definitions and elementary facts concerning t-designs.
Dukes, Peter James
core   +1 more source

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