Results 51 to 60 of about 290,778 (266)

SPEED AND CAR TRAFFIC REGULATION IN URBAN AREAS

open access: yesIATSS Research, 2003
Improvements in individual mobility conditions for drivers in the Paris conurbation (higher speed and lower cost of individual mobility) have contributed to the reduction of urban area density and have led to dominant use of the car and a dramatic ...
Marie-Hélène MASSOT
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Design and Performance Analysis of a New Variable Friction Pipeline Magnetic Flux Leakage Detection Robot

open access: yesLubricants
To meet the requirements of in-pipeline inspection tasks, this paper designs a fluid-driven pipeline magnetic flux leakage (MFL) inspection robot with controllable speed.
Haichao Liu   +4 more
doaj   +1 more source

Financial Regulation and the Speed of Financial Risks

open access: yesŒconomia, 2017
This paper argues that the speed of financial risks, rather than the speed of regulators, is the key cause of financial crises. Our argument contradicts a common claim in the literature that financial crises arise because regulators cannot keep up with ...
Ralph Chami   +3 more
doaj   +1 more source

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

Design of Control Strategies for Speed Regulation of Magnetic Reciprocating Engine

open access: yesEng
Magnetic reciprocating engines (MREs) offer an emission-free alternative to internal combustion engines; however, their practical implementation requires precise speed regulation, a challenge compounded by coupled electromechanical dynamics and inductive
Raúl Alegría Gómez   +5 more
doaj   +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

Power-speed coupling response characteristics of variable speed pumped storage unit under pumping mode

open access: yesInternational Journal of Electrical Power & Energy Systems
Variable speed pumped storage unit (VSPSU) has the advantage of adjustable power under pumping mode, which can better meet the regulation demand of power grid.
Rui Cao, Wencheng Guo, Chao Wang
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS 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   +5 more
wiley   +1 more source

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