Results 31 to 40 of about 5,473 (218)

Delayed development of basic numerical skills in children with developmental dyscalculia

Frontiers in Psychology
Research suggests that children with developmental dyscalculia (DD) have deficits in basic numerical skills. However, there is conflicting evidence on whether basic numerical skills in children with DD are qualitatively different from those in typically ...
Sarah Lamb, Florian Krieger, Jörg-Tobias Kuhn   +2 more
doaj   +1 more source

Developmental changes in the association between approximate number representations and addition skills in elementary school children

Frontiers in Psychology, 2013
The approximate number system (ANS) is assumingly related to mathematical learning but evidence supporting this assumption is mixed. The inconsistent findings might be attributed to the fact that different measures have been used to assess the ANS and ...
Jan eLonnemann, Jan eLonnemann, Janosch eLinkersdörfer, Janosch eLinkersdörfer, Marcus eHasselhorn, Marcus eHasselhorn, Marcus eHasselhorn, Sven eLindberg, Sven eLindberg   +8 more
doaj   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk, Sebastian Michaelis, Michaela Döring, Thomas Eichholz, Ursula Holzer, Martin Ebinger, Tim Flaadt, Rupert Handgretinger, Peter Lang, Jan Frederic Weller, Markus Mezger   +10 more
wiley   +1 more source

Object-based neglect in number processing

Behavioral and Brain Functions, 2013
Recent evidence suggests that neglect patients seem to have particular problems representing relatively smaller numbers corresponding to the left part of the mental number line.
Klein Elise, Moeller Korbinian, Zinsberger Daniela, Zauner Harald, Wood Guilherme, Willmes Klaus, Haider Christine, Gassner Alfred, Nuerk Hans-Christoph   +8 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Relationships between magnitude representation, counting and memory in 4- to 7-year-old children: A developmental study

Behavioral and Brain Functions, 2010
Background The development of an evolutionarily grounded analogue magnitude representation linked to the parietal lobes is frequently thought to be a major factor in the arithmetic development of humans.
Szűcs Dénes, Soltész Fruzsina, Szűcs Lívia   +2 more
doaj   +1 more source

The Interplay Between the Natural Number Bias and Fraction Magnitude Processing in Low-Achieving Students

Frontiers in Education, 2020
Research has identified two core difficulties many students have with fractions: first, they often struggle with processing fraction magnitudes, and second, they rely on natural number concepts in fraction problems [“Natural Number Bias” (NNB)]. Yet, the
Frank Reinhold, Andreas Obersteiner, Stefan Hoch, Sarah Isabelle Hofer, Kristina Reiss, Kristina Reiss   +5 more
doaj   +1 more source

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

FEBS 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, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

The Contribution of Numerical Magnitude Comparison and Phonological Processing to Individual Differences in Fourth Graders' Multiplication Fact Ability. [PDF]

PLoS ONE, 2016
Although numerical magnitude processing has been related to individual differences in arithmetic, its role in children's multiplication performance remains largely unknown.
Tamara M J Schleepen, Hanneke I Van Mier, Bert De Smedt   +2 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source