Results 11 to 20 of about 2,205,764 (331)

Planet-driven Spiral Arms in Protoplanetary Disks. I. Formation Mechanism [PDF]

open access: yesAstrophysical Journal, 2017
Protoplanetary disk simulations show that a single planet can excite more than one spiral arm, possibly explaining the recent observations of multiple spiral arms in some systems. In this paper, we explain the mechanism by which a planet excites multiple
Bae, Jaehan, Zhu, Zhaohuan
core   +5 more sources

RRT*-Based Path Planning for Continuum Arms

open access: yesIEEE Robotics and Automation Letters, 2022
Continuum arms are bio-inspired devices that exhibit continuous, smooth bending and generate motion through structural deformation. Rapidly-exploring random trees (RRT) is a traditional approach for performing efficient path planning.
Brandon H. Meng, I. Godage, Iyad A. Kanj
semanticscholar   +1 more source

Trends in International Arms Transfers, 2022

open access: yes, 2023
Imports of major arms by European states rose by 47 per cent between 2013–17 and 2018–22, while the global volume of international arms transfers fell by 5.1 per cent. There were decreases in arms transfers to Africa (–40 per cent), the Americas (–21 per
Pieter D. Wezeman   +2 more
semanticscholar   +1 more source

Quantifying the High-Frequency Trading "Arms Race"

open access: yesQuarterly Journal of Economics, 2021
We use stock exchange message data to quantify the negative aspect of high-frequency trading, known as “latency arbitrage.” The key difference between message data and widely familiar limit order book data is that message data contain attempts to trade
M. Aquilina, Eric Budish, P. O’Neill
semanticscholar   +1 more source

The Paradigm-Shift of Social Spambots: Evidence, Theories, and Tools for the Arms Race [PDF]

open access: yesThe Web Conference, 2017
Recent studies in social media spam and automation provide anecdotal argumentation of the rise of a new generation of spambots, so-called social spambots.
S. Cresci   +4 more
semanticscholar   +1 more source

Real‐world evidence to support regulatory decision‐making for medicines: Considerations for external control arms

open access: yesPharmacoepidemiology and Drug Safety, 2020
Randomized clinical trials (RCTs) are the gold standard in producing clinical evidence of efficacy and safety of medical interventions. More recently, a new paradigm is emerging—specifically within the context of preauthorization regulatory decision ...
M. Burcu   +6 more
semanticscholar   +1 more source

Multi-Armed Bandits With Correlated Arms [PDF]

open access: yesIEEE Transactions on Information Theory, 2019
We consider a multi-armed bandit framework where the rewards obtained by pulling different arms are correlated. We develop a unified approach to leverage these reward correlations and present fundamental generalizations of classic bandit algorithms to ...
Samarth Gupta   +3 more
semanticscholar   +1 more source

Analisis Kepentingan Jerman dalam Pengiriman Main Battle Tank Leopard ke Indonesia (2012-2017)

open access: yesNation State, 2021
This article is intended to analyze the reason behind the shipment of Main Battle Tank (MBT) Leopard by Germany to Indonesia from the year of 2012 until year 2017. Arms transfer is used with the purpose to increase wealth, power and to produce innovation
Valery Ilhamna Putri
doaj   +1 more source

Robotic kiwifruit harvesting using machine vision, convolutional neural networks, and robotic arms

open access: yesBiosystems Engineering, 2019
As labour requirements in horticultural become more challenging, automated solutions are becoming an effective approach to maintain productivity and quality.
Henry Williams   +11 more
semanticscholar   +1 more source

DAX-1 Expression in Pediatric Rhabdomyosarcomas: Another Immunohistochemical Marker Useful in the Diagnosis of Translocation Positive Alveolar Rhabdomyosarcoma [PDF]

open access: yes, 2015
OBJECTIVES: The aim of this study was to investigate the expression of DAX-1 in a series of pediatric rhabdomyosarcomas (RMS) with known translocation and compare it to Ap2\u3b2, known to be selectively expressed in ARMS. DESIGN: We revised a series of
Alaggio, Rita   +10 more
core   +5 more sources

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