Results 51 to 60 of about 3,049 (257)

Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran, Malo Gaubert, Alice Dufey, Elise Bannier, Audrey Rico, Jean‐Christophe Ferré, Raphaël Chouteau, Laure Michel, Emmanuelle Le Page, Virginie Callot, Bertrand Audoin, Sarah Demortière, Benoît Combès, Anne Kerbrat   +13 more
wiley   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

Distributed data hiding in multi-cloud storage environment

Journal of Cloud Computing: Advances, Systems and Applications, 2020
Classical or traditional steganography aims at hiding a secret in cover media such as text, image, audio, video or even in network protocols. Recent research has improved this approach called distributed steganography by fragmenting the secret message ...
Leonel Moyou Metcheka, René Ndoundam
doaj   +1 more source

Supervised learning framework for covert channel detection in LTE‐A

IET Information Security, 2018
Covert channels transmit secret information by using the existing resources which were not designed for communication. As a major approach to information leakage, covert channels are rapidly gaining popularity with the exponentially growth of cloud and network resources.
Guangliang Xu, Wei Yang 0011, Liusheng Huang   +2 more
openaire   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Virtual machine co-residency method on cloud computing platform

Tongxin xuebao, 2018
If the attacker wants to compromise a target virtual machine on a cloud platform,the malicious virtual machine must be co-resident with the target.Based on this,a virtual machine co-residency method was proposed.The method combined a co-residency ...
Weijie LIU, Li’na WANG, Danlei WANG, Zhengguang YIN, Nan FU   +4 more
doaj   +2 more sources

Exploiting Temporal Variability in TCP Timestamps for Covert Channel Design

IEEE Access
Information is a valuable asset for individuals, organizations, and governments, making secure transmission a critical concern. Cryptographic techniques are widely used to protect communication; however, in scenarios where the mere detection of ...
Silvio R. A. O. Filho, Claudio A. S. Lelis, Eric T. E. Soares, Cesar A. C. Marcondes   +3 more
doaj   +1 more source

A framework for network covert channel detection

, 2020
Since the dawn of human communications, there have been people that have wished to correspond secretly with others. Some people have desired the content of their communication to be kept confidential; some wish the very fact that they are communicating to remain unknown.
openaire   +3 more sources

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Joint jammer selection and power optimization in covert communications against a warden with uncertain locations

Digital Communications and Networks
In covert communications, joint jammer selection and power optimization are important to improve performance. However, existing schemes usually assume a warden with a known location and perfect Channel State Information (CSI), which is difficult to ...
Zhijun Han, Yiqing Zhou, Yu Zhang, Tong-Xing Zheng, Ling Liu, Jinglin Shi   +5 more
doaj   +1 more source