Results 101 to 110 of about 8,832,887 (365)

X-ray sources as tracers of the large-scale structure in the Universe [PDF]

, 2000
We review the current status of studies of large-scale structure in the X-ray Universe. After motivating the use X-rays for cosmological purposes, we discuss the various approaches used on different angular scales including X-ray background multipoles, cross-correlations of the X-ray background with galaxy catalogues, clustering of X-ray selected ...
arxiv   +1 more source

Risk analysis of the Unity 1.5T MR‐Linac adapt‐to‐shape workflow

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background and Purpose The adapt‐to‐shape (ATS) workflow on the Unity MR‐Linac (Elekta AB, Stockholm, Sweden) allows for full replanning including recontouring and reoptimization5. Additional complexity to this workflow is added when the adaptation involves the use of MIM Maestro (MIM Software, Cleveland, OH) software in conjunction with ...
Jiayi Liang, Eric Aliotta, Neelam Tyagi, Paola Godoy Scripes, Nicolas Côté, Ergys Subashi, Qijie Huang, Lian Sun, Ching‐Yun Chan, Angela Ng, Theresa Wunner, Victoria Brennan, Kaveh Zakeri, James Mechalakos   +13 more
wiley   +1 more source

Breast calcifications. Literature review

Опухоли женской репродуктивной системы
Breast cancer continues to maintain a leading position in the structure of the incidence of all oncological diseases among women. Early diagnosis of the disease at the stage of assessing indirect signs makes it possible in the future to maintain a good ...
O. S. Khodorovich, V. A. Solodkiy, V. O. Kleshneva, T. V. Sherstneva, K. V. Ishchenko   +4 more
doaj   +1 more source

Drought and heat stress tolerance screening in wheat using computed tomography

Plant Methods, 2020
Background Improving abiotic stress tolerance in wheat requires large scale screening of yield components such as seed weight, seed number and single seed weight, all of which is very laborious, and a detailed analysis of seed morphology is time ...
Jessica Schmidt, Joelle Claussen, Norbert Wörlein, Anja Eggert, Delphine Fleury, Trevor Garnett, Stefan Gerth   +6 more
doaj   +1 more source

Disk-Jet Connection in Cygnus X-3 [PDF]

, 2001
We present the results of a detailed correlation study between the soft X-ray, hard X-ray, and radio emission (obtained from RXTE ASM, BATSE, and GBI observations, respectively) of the bright radio emitting Galactic X-ray binary Cygnus X-3. We detect a very strong positive correlation between the soft X-ray and radio emission during the low-hard and ...
arxiv   +1 more source

Log file‐based quality assurance method for respiratory gating system

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background As medical linear accelerator technology advances, enabling higher dose rate deliveries, hypofractionation regimens has increased. This necessitates respiratory gating systems that synchronize radiation delivery with tumor position, requiring simple rigorous quality assurance (QA) to ensure treatment accuracy and patient safety ...
Wonjoong Cheon, Young Kyu Lee, Yunji Seol, Chan‐beom Park, Hong Qi Tan, Kyu Hye Choi, Young‐nam Kang, Byung Ock Choi   +7 more
wiley   +1 more source

X-ray observations of ultraluminous X-ray sources [PDF]

Astrophysics and Space Science, 2007
Invited talk at the 5th Stromlo Symposium. 10 pages, 4 figures.
openaire   +4 more sources

Producing high quality cranial SRS plans with 4Pi planning technique in a commercial clinical solution

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To generate high‐quality stereotactic radiosurgery (SRS) plans for single cranial lesions using 4Pi planning technique and compare these to our clinical “status quo” plans. Methods Eighteen vestibular schwannoma (VS) patients previously planned with Varian Eclipse RapidArc and treated on a Varian TrueBeam using 6FFF MV photon beams ...
Ganesh Narayanasamy, Nishan Shrestha, Milan Bimali, Fen Xia, Zhong Su   +4 more
wiley   +1 more source

Single-crystal x-ray diffraction structures of covalent organic frameworks

Science, 2018
Covalent organic frameworks writ large Covalent organic framework (COF) materials have been difficult to characterize structurally and to exploit because they tend to form powders or amorphous materials. Ma et al.
Tianqiong Ma, E. Kapustin, Shawn X. Yin, Lin Liang, Zhenqi Zhou, Jing Niu, Lihua Li, Yingying Wang, Jie Su, Jian Li, Xiaoge Wang, W. Wang, Wen Wang, Junliang Sun, O. Yaghi   +14 more
semanticscholar   +1 more source

A Spectroscopic Census of X-ray Systems in the COSMOS Field [PDF]

, 2019
We investigate spectroscopic properties of galaxy systems identified based on deep X-ray observations in the COSMOS field. The COSMOS X-ray system catalog we use George et al. (2011) includes 180 X-ray systems to a limiting flux of $1.0 \times 10^{-15}$ erg cm$^{-2}$ s$^{-1}$, an order of magnitude deeper than future e-ROSITA survey.
arxiv   +1 more source