Results 81 to 90 of about 177,335 (271)

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

A New Method for Calculating Individual Subitizing Ranges

open access: yesJournal of Numerical Cognition, 2018
A large body of research has shown that human adults are fast and accurate at enumerating arrays of ~1-4 items. This phenomenon has been called subitizing. Above this range, enumeration is slower and less accurate.
Tali Leibovich-Raveh   +3 more
doaj   +1 more source

Math Anxiety Mediates the Link Between Number Sense and Math Achievements in High Math Anxiety Young Adults

open access: yesFrontiers in Psychology, 2020
In the past few years, many studies have suggested that subjects with high sensory precision in the processing of non-symbolic numerical quantities (approximate number system; ANS) also have higher math abilities.
Paula Andrea Maldonado Moscoso   +3 more
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Linear Spatial–Numeric Associations Aid Memory for Single Numbers

open access: yesFrontiers in Psychology, 2019
Memory for numbers improves with age. One source of this improvement may be learning linear spatial–numeric associations, but previous evidence for this hypothesis likely confounded memory span with quality of numerical magnitude representations and ...
John Opfer   +3 more
doaj   +1 more source

A Neural Model of How The Brain Represents and Compares Numbers [PDF]

open access: yes, 1999
Many psychophysical experiments have shown that the representation of numbers and numerical quantities in humans and animals is related to number magnitude.
Grossberg, Stephen, Repin, Dmitry
core   +1 more source

The role of language in mathematical development: Evidence from children with specific language impairments [PDF]

open access: yes, 2007
A sample (n=48) of eight year olds with Specific Language Impairments is compared with age-matched (n=55) and language matched controls (n=55) on a range of tasks designed to test the interdependence of language and mathematical development.
Cowan, Richard   +3 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Spatial-Numerical Associations Enhance the Short-Term Memorization of Digit Locations

open access: yesFrontiers in Psychology, 2018
Little is known about how spatial-numerical associations (SNAs) affect the way individuals process their environment, especially in terms of learning and memory. In this study, we investigated the potential effects of SNAs in a digit memory task in order
Catherine Thevenot   +3 more
doaj   +1 more source

The material origin of numbers: Insights from the archaeology of the Ancient Near East [PDF]

open access: yes, 2019
What are numbers, and where do they come from? A novel answer to these timeless questions is proposed by cognitive archaeologist Karenleigh A. Overmann, based on her groundbreaking study of material devices used for counting in the Ancient Near East ...
Overmann, Karenleigh Anne
core  

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