Results 41 to 50 of about 38,049 (200)

Knot Fertility and Lineage

, 2017
In this paper, we introduce a new type of relation between knots called the descendant relation. One knot $H$ is a descendant of another knot $K$ if $H$ can be obtained from a minimal crossing diagram of $K$ by some number of crossing changes. We explore
Cantarella, Jason, Henrich, Allison, Magness, Elsa, O'Keefe, Oliver, Perez, Kayla, Rawdon, Eric J., Zimmer, Briana   +6 more
core   +1 more source

Age, Race, and Ethnicity of Maternal Grandparents in Autism Spectrum Disorder, a California Multigenerational Study

Autism Research, EarlyView.
ABSTRACT We investigated associations between maternal grandparents' age and autism spectrum disorders (ASD) in grandchildren, exploring differences by race/ethnicity. In a multigenerational California birth cohort study including 1,743,998 and 1,630,722 mother–child pairs (with 27,975 and 25,816 ASD cases, respectively), we examined ASD risk by ...
Ting Chow, Qi Meng, Jingyuan Xiao, Karl O'Sharkey, Zeyan Liew, Beate Ritz   +5 more
wiley   +1 more source

String Figuring young children's perspectives of quality in English early childhood education and care

British Educational Research Journal, EarlyView.
Abstract Quality in early childhood education and care (ECEC) is a contested concept and has generally been conceptualised by inter‐related indicators such as staff qualifications, educational environment, policy or child‐to‐staff ratios. There has been a more limited emphasis on how young children might perceive and experience quality.
Nikki Fairchild, Éva Mikuska
wiley   +1 more source

Conjugated polymers as photocatalysts for hydrogen therapy

BMEMat, EarlyView.
Conjugated polymers, including linear polymers and crosslinked conjugated materials, are promising photocatalysts for hydrogen evolution due to their excellent optical properties. Hydrogen therapy based on photocatalytic hydrogen evolution presented significant effects in the fields of anti‐inflammatory, free radical scavenging, and cancer treatment ...
Feixue Mi, Ningjing Zhao, Lingyue Jin, Ziyi Zhang, Xinyu Wang, Xiaofeng Fang, Wenting Li, Zhao Liu, Peng Shu, Xuanjun Zhang, Changfeng Wu   +10 more
wiley   +1 more source

Metal–peptide rings form highly entangled topologically inequivalent frameworks with the same ring- and crossing-numbers

Nature Communications, 2019
With increasing ring-crossing number (c), knot theory predicts an exponential increase in the number of topologically different links of these interlocking structures, even for structures with the same ring number (n) and c. Here, we report the selective
Tomohisa Sawada, Ami Saito, Kenki Tamiya, K. Shimokawa, Yutaro Hisada, M. Fujita   +5 more
semanticscholar   +1 more source

Functional regression with intensively measured longitudinal outcomes: a new lens through data partitioning

Canadian Journal of Statistics, EarlyView.
Abstract Modern longitudinal data from wearable devices consist of biological signals at high‐frequency time points. Distributed statistical methods have emerged as a powerful tool to overcome the computational burden of estimation and inference with large data, but methodology for distributed functional regression remains limited.
Cole Manschot, Emily C. Hector
wiley   +1 more source

Restricted Tweedie stochastic block models

Canadian Journal of Statistics, EarlyView.
Abstract The stochastic block model (SBM) is a widely used framework for community detection in networks, where the network structure is typically represented by an adjacency matrix. However, conventional SBMs are not directly applicable to an adjacency matrix that consists of nonnegative zero‐inflated continuous edge weights.
Jie Jian, Mu Zhu, Peijun Sang
wiley   +1 more source

A head start: The relationship of placental factors to craniofacial and brain development

Developmental Dynamics, EarlyView.
Abstract In recent years, the importance of placental function for fetal neurodevelopment has become increasingly studied. This field, known as neuroplacentology, has greatly expanded possible etiologies of neurodevelopmental disorders by exploring the influence of placental function on brain development.
Annemarie Jenna Carver, Martine Dunnwald, Hanna Elizabeth Stevens   +2 more
wiley   +1 more source

Assessing benthos through predator stomach contents: spatiotemporal modeling of abundance and habitat use

Ecography, EarlyView.
In shelf ecosystems, benthic invertebrates facilitate nutrient recycling and the transfer of energy to higher trophic levels. However, large‐scale monitoring through direct sampling (e.g. using benthic grabs or bottom trawls) can be costly in terms of time and labor.
Jonathan C. P. Reum, James T. Thorson, Cynthia Yeung, Kerim Aydin   +3 more
wiley   +1 more source

Shape‐shifting in relative wing length of juvenile shorebirds: no evidence of developmental temperatures driving morphological changes

Ecography, EarlyView.
Morphological changes concurrent with climate change are increasingly identified in birds, often through decreasing body size and increasing appendage size. Such changes could have thermoregulatory implications, through the improved surface area to body ratio they provide.
Sara Ryding, Alexandra McQueen, Matthew R.E. Symonds, Glenn J. Tattersall, Victorian Wader Study Group, Australasian Wader Studies Group, Danny I. Rogers, Robyn Atkinson, Roz Jessop, Chris J. Hassell, Maureen Christie, Tobias A. Ross, Marcel Klaassen   +12 more
wiley   +1 more source