Results 71 to 80 of about 433,687 (338)

Rethinking Information Theory for Mobile Ad Hoc Networks [PDF]

open access: yes, 2007
The subject of this paper is the long-standing open problem of developing a general capacity theory for wireless networks, particularly a theory capable of describing the fundamental performance limits of mobile ad hoc networks (MANETs). A MANET is a peer-to-peer network with no pre-existing infrastructure. MANETs are the most general wireless networks,
arxiv   +1 more source

Understanding and Overcoming Immunotherapy Resistance in Skin Cancer: Mechanisms and Strategies

open access: yesAging and Cancer, EarlyView.
This narrative review explores the mechanisms driving immunotherapy resistance in skin cancer, including tumor microenvironment factors, genetic mutations, and immune evasion strategies. It highlights potential strategies to overcome resistance, offering insights for improving therapeutic outcomes and guiding future research in personalized ...
Shreya Singh Beniwal   +8 more
wiley   +1 more source

Capacity Scaling of SDMA in Wireless Ad Hoc Networks [PDF]

open access: yesarXiv, 2009
We consider an ad hoc network in which each multi-antenna transmitter sends independent streams to multiple receivers in a Poisson field of interferers. We provide the outage probability and transmission capacity scaling laws, aiming at investigating the fundamental limits of Space Division Multiple Access (SDMA).
arxiv  

Impact of Short-Term Bhastrika Pranayama on Respiratory Parameters: An Ancient Practice with Contemporary Significance

open access: yesPhysical Education of Students, 2015
Purpose: The study was conducted to determine the impact of short-term bhastrika pranayama on respiratory parameters. Material : The research was carried out on a sample of 30 university level girls. Experimental group was subjected to 4-week training of
Singh Bal Baljinder
doaj   +1 more source

Closing the gap in plan quality: Leveraging deep‐learning dose prediction for adaptive radiotherapy

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Balancing quality and efficiency has been a challenge for online adaptive therapy. Most systems start the online re‐optimization with the original planning goals. While some systems allow planners to modify the planning goals, achieving a high‐quality plan within time constraints remains a common barrier.
Sean J. Domal   +9 more
wiley   +1 more source

Impairment in Respiratory Function Contributes to Olfactory Impairment in Amyotrophic Lateral Sclerosis

open access: yesFrontiers in Neurology, 2018
BackgroundNonmotor symptoms are very common in neurodegenerative diseases. In patients suffering from amyotrophic lateral sclerosis (ALS), olfactory dysfunction was first reported more than 20 years ago; however, its pathophysiological correlates and ...
René Günther   +10 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

open access: yesJournal 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   +4 more
wiley   +1 more source

Methods for working with problem residents in medical physics residency education

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Medical physics residency training programs may occasionally encounter residents requiring additional intervention beyond normal training efforts. In the literature, these residents are referred to as “problem” residents. While the physician literature on the subject is valuable, this paper specifically focuses on dealing with a problem ...
Christopher J. Watchman, Dandan Zheng
wiley   +1 more source

Correlation between Forced Expiratory Volume One Second and Vital Capacity with VO2 Maximum

open access: yesAlthea Medical Journal, 2016
Background: Medical students need to cope with their tight schedule, which also demand a good physical fitness to do those activities. Insufficient leisure time and exhausting activities impede students’ capacity on having routine physical exercise to ...
Siti Khadijah Rahmania   +2 more
doaj   +1 more source

Linear programming based evacuation models for a controlled freeway [PDF]

open access: yesarXiv, 2020
A linear programming (LP) model is proposed to improve the performance of a controlled freeway during an emergency evacuation. Based on reasonable assumptions, the main relationships among key factors are kept without the uncertain impact of subordinate factors in this model.
arxiv  

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