Results 41 to 50 of about 4,165 (288)

Impact of acceleration treatment on treatment plan and delivery qualities in tomotherapy for lung cancer

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Acceleration treatment (AT) is a novel treatment planning parameter introduced in the tomotherapy‐dedicated treatment planning system, Precision. This study explores the effects of AT on tomotherapy plans using helical (TomoHelical) and direct (TomoDirect) irradiation techniques.
Ryosuke Shirata, Tatsuya Inoue, Yugo Ebinuma, Akihiro Yamano, Takayuki Yagihashi, Hironori Nagata, Yumiko Minagawa, Yuki Mukai, Akiko Sato, Motoko Omura   +9 more
wiley   +1 more source

R-DDQN: Optimizing Algorithmic Trading Strategies Using a Reward Network in a Double DQN

Mathematics
Algorithmic trading is playing an increasingly important role in the financial market, achieving more efficient trading strategies by replacing human decision-making.
Chujin Zhou, Yuling Huang, Kai Cui, Xiaoping Lu   +3 more
doaj   +1 more source

Hybrid Deep Reinforcement Learning for Pairs Trading

Applied Sciences, 2022
Pairs trading is an investment strategy that exploits the short-term price difference (spread) between two co-moving stocks. Recently, pairs trading methods based on deep reinforcement learning have yielded promising results.
Sang-Ho Kim, Deog-Yeong Park, Ki-Hoon Lee   +2 more
doaj   +1 more source

Monte Carlo modeling of radiation dose from radiation therapy with superficial x‐rays

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction Superficial x‐rays (50–100 kVp) are used for treating non‐melanoma skin cancer and intraoperative radiation therapy (IORT). At these energies, the photoelectric effect significantly increases absorbed dose to bone compared to soft tissue.
Reham Barghash, Tiffany W. Martin, Amber R. Prebble, Del Leary   +3 more
wiley   +1 more source

From trading to technical trading, algorithmic trading and HFT trading

, 2022
Let us go back a little bit and try to look at this phenomenon in the context of the current situation. Financial markets, particularly stock markets, stimulate buying and selling of financial instruments - contracts that give a right for a gradual withdrawal of funds. Different players can be involved in these markets at different times.
openaire   +1 more source

HETEROGENEOUS TRADING STRATEGY ENSEMBLING FOR INTRADAY TRADING ALGORITHMS

South African Journal of Industrial Engineering, 2023
Since the inception of algorithmic trading during the mid-1970s, considerable resources and time have been committed by the financial sector to the development of trading algorithms in the hope of obtaining a competitive advantage over human contenders.
Koegelenberg, D.J.C, van Vuuren, J.H.
openaire   +2 more sources

Stereotactic radiosurgery for multiple small brain metastases using gamma knife versus single‐isocenter VMAT: Normal brain dose based on lesion number and size

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The study evaluates rapid linear accelerator (Linac) single isocenter stereotactic radiosurgery (SRS) with Hyperarc for large target numbers. We compared to Gamma Knife (GK), which suffers from long treatment times and investigated causes of differences. Methods Linac SRS and GK treatment plans for patients receiving 18 Gy to the gross
Abram Abdou, Timoteo Almeida, Elizabeth Bossart, Irene Monterroso, Eric A. Mellon   +4 more
wiley   +1 more source

Algorithmic Trading in Volatile Markets [PDF]

SSRN Electronic Journal, 2013
Algorithmic trading (AT) is widely adopted by equity investors. In the current paper we investigate whether AT increases stock price volatility in turbulent periods. By exclusively focusing on the volatile days on the Australian Securities Exchange during the period of 27 October 2008 till 23 October 2009, we find a significant negative association ...
Hao Zhou, Petko S. Kalev, Guanghua Lian
openaire   +1 more source

Algorithmic setups for trading popular U.S. ETFs

Cogent Economics & Finance, 2020
In this research, we test whether common trading oscillators can outperform the buy-and-hold strategy (B&H) using six popular ETFs for the period of the last 20 years.
Gil Cohen
doaj   +1 more source

Toward Design Principles for Biomolecular Condensates for Metabolic Pathways

Advanced Biology, EarlyView.
Biomolecular condensates are membrane‐less compartments found through‐out nature which can serve as reaction crucibles for biochemical processes. This review explores the design strategies underlying how condensates can be used in biotechnology to enhance multistep enzyme cascades including enhancement by mass action and substrate channeling, and ...
Alain A.M. André, Nikita Rehnberg, Ankush Garg, Magnus Kjærgaard   +3 more
wiley   +1 more source