Results 81 to 90 of about 51,269 (265)

Investigating measurement invariance in PIRLS 2021 across English and isiZulu language groups

open access: yesReading & Writing
Background: PIRLS 2021 results revealed that South African Grade 4 learners performed significantly lower compared to other countries in reading comprehension and that they did not reach the standardised international mean score of 500.
Sinethemba Mthimkhulu   +2 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Equivalent martingale measures and Lévy processes [PDF]

open access: yesRevista Brasileira de Economia, 2006
Neste trabalho calculamos as medidas martingalas equivalentes quando os retornos dos precos dos ativos sao modelados por um Processo de Levy. Seguimos la formulacao introduzida por Gerber e Shiu (1994).
openaire   +5 more sources

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Assessing the measurement invariance of Free Will and Determinism Plus scale across four languages: a registered report

open access: yesRoyal Society Open Science
Free will is assumed to be the core of an individual’s self-concept. Belief in free will has been studied extensively and was found to be correlated with many behavioural and psychological outcomes.
Siqi Duan   +6 more
doaj   +1 more source

The applicability of low-cost PM10 sensors for atmospheric air quality monitoring

open access: yesSHS Web of Conferences, 2018
Described in this work are the results of field tests carried out in the Tricity Agglomeration between 01 April 2018 and 30 June 2018 in order to evaluate the usefulness of low-cost PM10 sensors in atmospheric air quality monitoring.
Szulczyński Bartosz, Gębicki Jacek
doaj   +1 more source

Equivalent measures of dependence

open access: yesJournal of Multivariate Analysis, 1983
AbstractThe maximal correlation between a pair of σ-fields A and B becomes arbitrarily small as sup{|P(A ⋔ B) − P(A) P(B)|/[P(A) P(B)]1/2, A ∈ A, B ∈ B, P(A) > 0, P(B) > 0} becomes sufficiently small.
openaire   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Sprint Speed Measurement in a National Rugby Union Academy: An Equivalence Study of Three Measurement Systems, Age, and Playing Position

open access: yesEuropean Journal of Sport Science
This study profiled the sprint speed of young male rugby union players in a national pathway academy, comparing different technologies for determining maximal velocity (Vmax), while also examining age‐group and positional effects.
Andrew R. Wright   +6 more
doaj   +1 more source

AscF in the mycobacterial CIII–CIV supercomplex lacks metal and nucleotide binding but links malate oxidation to respiration

open access: yesFEBS Letters, EarlyView.
The mycobacterial CIII‐CIV respiratory supercomplex is an obligate assembly, encompassing several subunits of unknown functions. We have characterized the intracellular subunit AscF, and show that it is unlikely to be a sensor for metals or nucleotides, but is required for growth on nonfermentable energy sources, and likely works as an adapter for ...
Eni Rile   +8 more
wiley   +1 more source

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