Results 51 to 60 of about 158,996 (288)

Bone‐wise rigid registration of femur, tibia, and fibula for the tracking of temporal changes

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Multiple myeloma (MM) induces temporal alterations in bone structure, such as osteolytic bone lesions, which are challenging to identify through manual image interpretation. The large variation in radiologists' assessments, even at expert centers, further complicates diagnosis.
Arttu Ruohola, Ville Haapamäki, Eero Salli, Tuomas Kaseva, Marko Kangasniemi, Sauli Savolainen   +5 more
wiley   +1 more source

BTZ trailing strings

Journal of High Energy Physics, 2020
We compute holographically the energy loss of a moving quark in various states of the D1-D5 CFT. In the dual bulk geometries, the quark is the end of a trailing string, and the profile of this string determines the drag force exerted by the medium on the
Iosif Bena, Alexander Tyukov
doaj   +1 more source

Illuminating entanglement shadows of BTZ black holes by a generalized entanglement measure

Journal of High Energy Physics, 2021
We define a generalized entanglement measure in the context of the AdS/CFT correspondence. Compared to the ordinary entanglement entropy for a spatial subregion dual to the area of the Ryu-Takayanagi surface, we take into account both entanglement ...
Marius Gerbershagen
doaj   +1 more source

PyVaporation: A Python Package for Studying and Modelling Pervaporation Processes

Membranes, 2022
PyVaporation—a freely available Python package with an open-source code for modelling and studying pervaporation processes—is introduced. The theoretical background of the solution, its applicability and limitations are discussed.
Denis Andzheevich Sapegin, Aleksei Viktorovich Chekmachev   +1 more
doaj   +1 more source

Exploring surface‐guided systems for intelligent breathing‐adapted four‐dimensional computed tomography: A comparison to infrared‐based reflective marker systems

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the technical feasibility of adapting a surface monitoring system, designed for conventional four‐dimensional computed tomography (4DCT), to an intelligent, breathing‐adapted 4DCT and examines its potential to expand the currently limited range of supported surrogate systems.
Niklas Lackner, Andre Karius, Rainer Fietkau, Christoph Bert, Juliane Szkitsak   +4 more
wiley   +1 more source

Exact solutions to the Erdős-Rothschild problem

Forum of Mathematics, Sigma
Let $\boldsymbol {k} := (k_1,\ldots ,k_s)$ be a sequence of natural numbers. For a graph G, let $F(G;\boldsymbol {k})$ denote the number of colourings of the edges of G with colours $1,\dots ,s$ such that, for every $c \in \{1 ...
Oleg Pikhurko, Katherine Staden
doaj   +1 more source

Changes in temperature and precipitation extremes in the arid regions of China during 1960–2016

Frontiers in Ecology and Evolution, 2022
Extreme climate events have a greater impact on natural and human systems than average climate. The spatial and temporal variation of 16 temperature and nine precipitation extremal indices was investigated using the daily maximum and minimum surface air ...
Xuyang Wang, Xuyang Wang, Xuyang Wang, Yuqiang Li, Yuqiang Li, Yuqiang Li, Meng Yan, Xiangwen Gong, Xiangwen Gong   +8 more
doaj   +1 more source

Shielding resources for four common radiopharmaceuticals utilized for imaging and therapy: Tc‐99m, F‐18, I‐131, and Lu‐177

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction The use of radioactive materials in the United States has been tightly regulated by the Nuclear Regulatory Commission and other entities for many decades. In 2015, however, the Joint Commission began to require hospital‐based nuclear medicine departments to conduct shielding designs and evaluations for radioactive material areas ...
Michael Oumano, Richard Wendt, James Botti, Nathan Busse, David Hintenlang, Stephanie Leon, Kevin Little, Melissa Martin, Richard Massoth, Kenneth Matthews, Rameshwar Prasad, Sharon White, Jessica Clements   +12 more
wiley   +1 more source

Bogoliubov coefficients for the twist operator in the D1D5 CFT

Nuclear Physics B, 2014
The D1D5 CFT is a holographic dual of a near-extremal black hole in string theory. The interaction in this theory involves a twist operator which joins together different copies of a free CFT.
Zaq Carson, Samir D. Mathur, David Turton   +2 more
doaj   +1 more source

Islands in linear dilaton black holes

Journal of High Energy Physics, 2021
We derive a novel four-dimensional black hole with planar horizon that asymptotes to the linear dilaton background. The usual growth of its entanglement entropy before Page’s time is established.
Georgios K. Karananas, Alex Kehagias, John Taskas   +2 more
doaj   +1 more source