Results 11 to 20 of about 187,045,675 (194)

Time Resolved DNA Barcodes for Information Encoding and Dynamic Encryption. [PDF]

open access: yesAdv Sci (Weinh)
This study establishes a molecular information platform based on DNA Temporal Barcodes. Information is encoded through combinations of DNA tags with distinct retention times, while dynamic encryption is achieved through a key‐triggered DNA ligation.
Chu L   +7 more
europepmc   +2 more sources

Steganography-based secret and reliable communications: Improving steganographic capacity and imperceptibility [PDF]

open access: yes, 2010
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Unlike encryption, steganography hides the very existence of secret information rather than hiding its meaning only.
Al-Mohammad, Adel
core   +7 more sources

JPEG steganography: A performance evaluation of quantization tables [PDF]

open access: yes, 2009
The two most important aspects of any image based steganographic system are the imperceptibility and the capacity of the stego image. This paper evaluates the performance and efficiency of using optimized quantization tables instead of default JPEG ...
Al-Mohammad, A, Ghinea, G, Hierons, RM
core   +7 more sources

A selective delayed channel access (SDCA) for the high-throughput IEEE 802.11n [PDF]

open access: yes, 2009
— In this paper we investigate the potential benefits of a selective delayed channel access algorithm (SDCA) for the future IEEE 802.11n based high-throughput networks.
Ni, Q, Zarakovitis, C, Skordoulis, D
core   +7 more sources

A method for automatic identification of signatures of steganography software [PDF]

open access: yes, 2010
A fully automated, blind, media-type agnostic approach to steganalysis is presented here. Steganography may sometimes be exposed by detecting automatically characterized regularities in output media caused by weak implementations of steganography ...
Graeme Bell   +4 more
core   +1 more source

Code wars: steganography, signals intelligence, and terrorism [PDF]

open access: yes, 2003
This paper describes and discusses the process of secret communication known as steganography. The argument advanced here is that terrorists are unlikely to be employing digital steganography to facilitate secret intra-group communication as has been ...
Conway, Maura
core   +2 more sources

Accurate Cross-Layer Modelling and Evaluation of IEEE 802.11e using a Differentiated p-Persistent CSMA Protocol [PDF]

open access: yes, 2013
With the extensive deployment of 802.11 wireless local area networks (WLANs) and the need for better quality of service (QoS), the 802.11e MAC with service differentiation was developed.
Abukharis, Salim H S
core   +6 more sources

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Spatial biology in cancer epigenetics

open access: yesMolecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

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