Results 11 to 20 of about 957,959 (360)

LCDNet: Deep Loop Closure Detection and Point Cloud Registration for LiDAR SLAM [PDF]

open access: yesIEEE Transactions on robotics, 2021
Loop closure detection is an essential component of simultaneous localization and mapping (SLAM) systems, which reduces the drift accumulated over time.
Daniele Cattaneo   +2 more
semanticscholar   +1 more source

Primary Outcome Evaluation of a Next-Generation Left Atrial Appendage Closure Device

open access: yesCirculation, 2021
Supplemental Digital Content is available in the text. Background: Left atrial appendage (LAA) occlusion provides an alternative to oral anticoagulation for thromboembolic risk reduction in patients with nonvalvular atrial fibrillation.
S. Kar   +19 more
semanticscholar   +1 more source

Abscisic Acid-Induced Stomatal Closure: An Important Component of Plant Defense Against Abiotic and Biotic Stress

open access: yesFrontiers in Plant Science, 2021
Abscisic acid (ABA) is a stress hormone that accumulates under different abiotic and biotic stresses. A typical effect of ABA on leaves is to reduce transpirational water loss by closing stomata and parallelly defend against microbes by restricting their
P. Bharath, S. Gahir, A. S. Raghavendra
semanticscholar   +1 more source

Signaling Transduction of ABA, ROS, and Ca2+ in Plant Stomatal Closure in Response to Drought

open access: yesInternational Journal of Molecular Sciences, 2022
Drought is a global threat that affects agricultural production. Plants have evolved several adaptive strategies to cope with drought. Stomata are essential structures for plants to control water status and photosynthesis rate.
Hui Liu   +6 more
semanticscholar   +1 more source

Certain Properties of a Class of Functions Defined by Means of a Generalized Differential Operator

open access: yesMathematics, 2022
In this article, we construct a new subclass of analytic functions involving a generalized differential operator and investigate certain properties including the radius of starlikeness, closure properties and integral means result for the class of ...
Matthew Olanrewaju Oluwayemi   +2 more
doaj   +1 more source

The Independence Number Conditions for 2-Factors of a Claw-Free Graph

open access: yesAxioms, 2022
In 2014, some scholars showed that every 2-connected claw-free graph G with independence number α(G)≤3 is Hamiltonian with one exception of family of graphs.
Wanpeng Lei, Liming Xiong, Jun Yin
doaj   +1 more source

Intensity Scan Context: Coding Intensity and Geometry Relations for Loop Closure Detection [PDF]

open access: yesIEEE International Conference on Robotics and Automation, 2020
Loop closure detection is an essential and challenging problem in simultaneous localization and mapping (SLAM). It is often tackled with light detection and ranging (LiDAR) sensor due to its view-point and illumination invariant properties.
Han Wang, Chen Wang, Lihua Xie
semanticscholar   +1 more source

Association Between Statewide School Closure and COVID-19 Incidence and Mortality in the US.

open access: yesJournal of the American Medical Association (JAMA), 2020
Importance In the US, states enacted nonpharmaceutical interventions, including school closure, to reduce the spread of coronavirus disease 2019 (COVID-19).
Katherine A. Auger   +11 more
semanticscholar   +1 more source

Efficacy of interventional closure versus drug therapy for patent foramen ovale with cryptogenic stroke

open access: yesDi-san junyi daxue xuebao, 2021
Objective To compare the efficacy of interventional closure versus drug therapy in treatment of patent foramen ovale (PFO) complicated with cryptogenic stroke (CS).
KANG Xue   +5 more
doaj   +1 more source

PFO Closure: CLOSURE [PDF]

open access: yesStroke, 2013
The optimal secondary prevention strategy in patients presenting with a cryptogenic stroke or transient ischemic attack (TIA) and a patent foramen ovale (PFO) is uncertain. In the United States, closure of a PFO using a percutaneous transcatheter device is currently considered investigational by the Food and Drug Administration.
openaire   +3 more sources

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