Results 121 to 130 of about 4,205,053 (351)

Build it and they will come? The effects of a new infrastructure on cycling practices and experiences

Transportation Research Interdisciplinary Perspectives
What are the effects of cycling infrastructure? This question is crucial as cities begin to give more space to cycling. In this paper, we propose to use the theoretical concept of affordance to consider not only what a cycle lane affords (or enables ...
Patrick Rérat, Aurélie Schmassmann
doaj   +1 more source

Health benefits of electrically-assisted cycling: a systematic review

International Journal of Behavioral Nutrition and Physical Activity, 2018
BackgroundElectrically assisted bicycles (e-bikes) have been highlighted as a method of active travel that could overcome some of the commonly reported barriers to cycle commuting. The objective of this systematic review was to assess the health benefits
J. Bourne, S. Sauchelli, R. Perry, A. Page, S. Leary, C. England, A. Cooper   +6 more
semanticscholar   +1 more source

The microbiome in human skin aging

FEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana, Cornelia Wiegand, Omid Omrani, Mario Fabri   +3 more
wiley   +1 more source

Solvent engineering for scalable fabrication of perovskite/silicon tandem solar cells in air

Nature Communications
Perovskite/silicon tandem solar cells hold great promise for realizing high power conversion efficiency at low cost. However, achieving scalable fabrication of wide-bandgap perovskite (~1.68 eV) in air, without the protective environment of an inert ...
Xuntian Zheng, Wenchi Kong, Jin Wen, Jiajia Hong, Haowen Luo, Rui Xia, Zilong Huang, Xin Luo, Zhou Liu, Hongjiang Li, Hongfei Sun, Yurui Wang, Chenshuaiyu Liu, Pu Wu, Han Gao, Manya Li, Anh Dinh Bui, Yi Mo, Xueling Zhang, Guangtao Yang, Yifeng Chen, Zhiqiang Feng, Hieu T. Nguyen, Renxing Lin, Ludong Li, Jifan Gao, Hairen Tan   +26 more
doaj   +1 more source

Cycles in the cycle prefix digraph

Ars Comb., 2000
Cycle prefix digraphs are a class of Cayley coset graphs with many remarkable properties such as symmetry, large number of nodes for a given degree and diameter, simple shortest path routing, Hamiltonicity, optimal connectivity, and others. In this paper we show that the cycle prefix digraphs, like the Kautz digraphs, contain cycles of all lengths l ...
Comellas Padró, Francesc de Paula, Mitjana Riera, Margarida   +1 more
openaire   +3 more sources

Cycle-to-Cycle Variability

, 2013
In this chapter we shall analyze how to simulate, within a quasi-dimensional combustion model, the cyclic variability experimentally observed in spark ignition engines. Explicit qualitative comparison with experimental results will be shown. Moreover, we report a nonlinear dynamics analysis of cycle-by-cycle variations in heat release for the simulated
Alejandro Medina, Pedro Luis Curto-Risso, Antonio Calvo Hernández, Lev Guzmán-Vargas, Fernando Angulo-Brown, Asok K. Sen   +5 more
openaire   +1 more source

Isolation of Cycles

Graphs and Combinatorics, 2020
For any graph $G$, let $ι_{\rm c}(G)$ denote the size of a smallest set $D$ of vertices of $G$ such that the graph obtained from $G$ by deleting the closed neighbourhood of $D$ contains no cycle. We prove that if $G$ is a connected $n$-vertex graph that is not a triangle, then $ι_{\rm c}(G) \leq n/4$. We also show that the bound is sharp. Consequently,
openaire   +4 more sources

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

FEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee, Mingming Tong, Anna L. Gloyn   +2 more
wiley   +1 more source

Correlating multimodal physical sensor information with biological analysis in ultra endurance cycling [PDF]

, 2010
The sporting domain has traditionally been used as a testing ground for new technologies which subsequently make their way into the public domain. This includes sensors.
Warrington, Giles, Doherty, AR, May, GC, May, Gregory, Smeaton, Alan F., Doherty, Aiden R., Smeaton, AF, Warrington, GD, Aiden R. Doherty, Alan F. Smeaton, Gregory C. May, Giles D.Warrington   +11 more
core   +2 more sources

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

FEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source