Results 61 to 70 of about 2,852 (222)

Prophylactic Cranial Irradiation Versus Active MRI Surveillance in Small Cell Lung Cancer: Systematic Review and Meta‐Analysis

Journal of Medical Imaging and Radiation Oncology, EarlyView.
ABSTRACT Background Prophylactic cranial irradiation (PCI) has traditionally been a cornerstone of treatment in limited‐stage and extensive‐stage small cell lung cancer (SCLC). Recent evidence suggests that active MRI brain surveillance may result in comparable overall survival (OS) and progression‐free survival (PFS).
Zhao Feng Liu, Amy Sylivris, Yuan‐Hong Lin, Jennifer Ward, Marcus Cheng, Jodie Tham, Gemma D'Adamo, Sashendra Senthi   +7 more
wiley   +1 more source

Progressively Projected Newton's Method

Computer Graphics Forum, EarlyView.
Abstract Newton's Method is widely used to find the solution of complex non‐linear simulation problems. To guarantee a descent direction, it is common practice to clamp the negative eigenvalues of each element Hessian prior to assembly—a strategy known as Projected Newton (PN)—but this perturbation often hinders convergence.
J. A. Fernández‐Fernández, F. Löschner, J. Bender   +2 more
wiley   +1 more source

Shock Model of K/N: G Repairable Retrial System Based on Discrete PH Repair Time

Axioms
A discrete time modeling method is employed in this paper to analyze and evaluate the reliability of a discrete time K/N: G repairable retrial system with Bernoulli shocks and two-stage repair.
Xiaoyun Yu, Linmin Hu, Zebin Hu
doaj   +1 more source

Analysis of retrial queue with heterogeneous servers and Markovian arrival process

Informatika, 2020
Multi-server retrial queueing system with heterogeneous servers is analyzed. Requests arrive to the system according to the Markovian arrival process. Arriving primary requests and requests retrying from orbit occupy an available server with the highest ...
Mei Liu
doaj   +1 more source

Update of the EuroGuiDerm evidence‐based guideline for the treatment of acne—Short version

Journal of the European Academy of Dermatology and Venereology, EarlyView.
The 2025 EuroGuiDerm guideline update provides evidence‐based recommendations for acne management, addressing systemic antibiotics, systemic isotretinoin, hormonal therapies including spironolactone and contraceptives, and new topical agents. Key considerations include treatment duration, safety, pregnancy‐specific guidance and minimizing antibiotic ...
Alexander Nast, Bassel H. Al Wattar, Marie Beylot Barry, Holger Brüggemann, Zrinka Bukvić Mokos, Dawn M. Caruana, Klaus Degitz, Clio Dessinioti, Brigitte Dréno, Rieke J. B. Driessen, Harald Gollnick, Merete Hædersdal, Alexander Katoulis, Severin Läuchli, Julien Lambert, Alison M. Layton, Giuseppe Micali, Falk R. Ochsendorf, Thozhukat Sathyapalan, Katarina Zak Stangeland, Simon Francis Thomsen, Daniel Töröcsik, Antonia Pennitz   +22 more
wiley   +1 more source

Mixed loss and delay retrial queueing system with two classes of customers

Statistica, 2007
This paper is concerned with the analysis of a single-server batch arrival retrial queue with two classes of customers. In the case of blocking, the class-1 customers leave the system forever whereas the class-2 customers leave the service area and enter
B. Krishna Kumar, S. Pavai Madheswari
doaj   +1 more source

Bounds of the stationary distribution in M/G/1 retrial queue with two-way communication and n types of outgoing calls [PDF]

Yugoslav Journal of Operations Research, 2019
In this article we analyze the M=G=1 retrial queue with two-way communication and n types of outgoing calls from a stochastic comparison viewpoint. The main idea is that given a complex Markov chain that cannot be analyzed numerically, we propose to ...
Alem Lala Maghnia, Boualem Mohamed, Aissani Djamil   +2 more
doaj   +1 more source

Optimizing Pneumocystis jirovecii Prophylaxis in Immunocompromised Patients: Defining the Clinical Role of Atovaquone

Transplant Infectious Disease, EarlyView.
In a retrospective cohort study of 149 patients receiving atovaquone for PJP prophylaxis, increased usage was related to broader indications, uptake in new patient groups, difficulty tolerating or accessing alternatives, and longer durations used per patient.
To N. Pham, Kelly A. Cairns, Adithi Ramachandra, Susan G. Poole, Carmela E. Corallo, Bradley J. Gardiner   +5 more
wiley   +1 more source

Optimal Pricing Strategies in Cognitive Radio Networks With Heterogeneous Secondary Users and Retrials

IEEE Access, 2019
In a cognitive radio (CR) system, excessive access services for secondary users (SUs) lead to a substantial increase in congestion and the retrial phenomenon, both of which degrade the performance of CR networks, especially in overload conditions.
Yu Zhang, Jinting Wang, Wei Wayne Li
doaj   +1 more source

Sufficient Stability Conditions for Multi-class Constant Retrial Rate Systems [PDF]

, 2016
International audienceWe study multi-class retrial queueing systems with Poisson inputs, general service times, and an arbitrary numbers of servers and waiting places. A class-i blocked customer joins orbit i and waits in the orbit for retrial.
Avrachenkov, Konstantin, Steyaert, B., Steyaert, Bart, Morozov, E., Avrachenkov, K.   +4 more
core   +1 more source