Results 31 to 40 of about 6,503 (261)

Model of vehicle path radius at roundabout centreModel of vehicle path radius at roundabout centre

open access: yesGrađevinar, 2019
Field investigations of real-life vehicle paths at single lane rural roundabouts, conducted on a sample of 22 straight directions through roundabouts of varying properties, are presented in this paper.
Željko Korlaet   +3 more
doaj   +1 more source

A Roundabout Way to the Niche [PDF]

open access: yesCell Stem Cell, 2011
A new player in hematopoietic stem cell (HSC)-niche interactions is introduced in this issue of Cell Stem Cell. Smith-Berdan et al. (2010) demonstrate that Robo4 is involved in HSC engraftment and mobilization and does so in cooperation with Cxcr4 to guide stem cells to and secure them in the niche.
openaire   +2 more sources

Analyses of maximum-speed path definition at single-lane roundabouts

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2018
The process of designing roundabouts is an iterative process through which, in several checks, the design elements of a roundabout get optimized. Existing regulations for roundabouts involve swept path analyses, sight distance analyses and speed analyses
Sanja Šurdonja   +2 more
doaj   +1 more source

Improving cycling safety through infrastructure design: A bicycle simulator study

open access: yesTransportation Research Interdisciplinary Perspectives, 2023
This study investigated the impact of two road treatments on cyclist behaviour using an bicycle simulator. The treatments were sharrows (presence or absence) at a roundabout and widening an on-road bike lane (width 1.2 m or 1.8 m) on a curved mid-block ...
Lynn Meuleners   +2 more
doaj   +1 more source

Moving from Conventional Roundabouts to Turbo-roundabouts

open access: yesProcedia - Social and Behavioral Sciences, 2014
AbstractThis paper introduces the turbo-roundabout concept and compares its performance with the conventional double-lane roundabout in terms of safety and capacity. While researchers agree as to the safety benefits of turbo-roundabouts, improvement in terms of capacity is still open to discussion. The application of a new calculation method shows that
Silva, Ana Bastos   +2 more
openaire   +1 more source

Autonomous Road Roundabout Detection and Navigation System for Smart Vehicles and Cities Using Laser Simulator–Fuzzy Logic Algorithms and Sensor Fusion

open access: yesSensors, 2020
A real-time roundabout detection and navigation system for smart vehicles and cities using laser simulator–fuzzy logic algorithms and sensor fusion in a road environment is presented in this paper.
Mohammed A. H. Ali   +5 more
doaj   +1 more source

Heterozygous loss‐of‐function alleles associate the conserved 3′‐5′ exoribonuclease EXOSC10 with hypersensitivity to the anticancer drug 5‐fluorouracil

open access: yesMolecular Oncology, EarlyView.
EXOSC10, an essential nuclear RNA exosome‐associated 3′‐5′ exoribonuclease, is inhibited by the anticancer drug 5‐fluorouracil (5‐FU), and EXOSC10 depletion increases 5‐FU sensitivity. The colon‐cancer variant EXOSC10S402T, located in a proteolysis motif, is stable and nuclear but nonfunctional in vivo.
Radhika Sain   +10 more
wiley   +1 more source

A simulation of traffic noise emissions at a roundabout based on a cellular automaton model

open access: yesActa Acustica, 2021
The calculation and evaluation of traffic noise is an important task in urban road design. Roundabouts are a common form of urban road intersection. The complexity of traffic operations makes the calculation of traffic noise near a roundabout challenging.
Du Canyi, Qiu Xinfa, Li Feng, Cai Ming
doaj   +1 more source

Turbo-roundabouts vs Roundabouts Performance Level

open access: yesProcedia - Social and Behavioral Sciences, 2012
AbstractIn this paper the performance level of basic turbo-roundabouts and double-lane roundabouts are compared. Cowan's M3 headway distribution was chosen to take into account bunched vehicles moving along each circulating lane; the Hagring model was adopted to evaluate entry capacity both at turbo-roundabout and at double-lane roundabout.The ...
GIUFFRE', Orazio   +2 more
openaire   +2 more sources

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

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