Results 41 to 50 of about 16,373,898 (266)

selection of daily Sentinel-2 imagery from Southern Greenland 2017 to 2021

open access: yes, 2022
imagery features Qajuuttap sermia, Bredefjord and Qalerallit sermiat. Narsarsuaq is visible in the coverage. The imagery are stored as 10 m geotiff files processed by J.
Box, Jason
core   +1 more source

NONLINEAR NYBERG CONSTRUCTION TRANSFORMS OVER ISOMORPHIC REPRESENTATIONS OF FIELDS GALOIS

open access: yesСистемный анализ и прикладная информатика, 2017
Further development of cryptographic algorithms based on the principles of many-valued logic requires more accurate research of non-binary cryptographic primitives – S-boxes.
A. V. Sokolov, O. N. Zhdanov
doaj   +1 more source

A Cryptographic Scheme for Construction of Substitution Boxes Using Quantic Fractional Transformation

open access: yesIEEE Access, 2022
In the new era of cryptography, Substitution Boxes (S-Boxes) are very important to raise confusion in cipher text and the security of encryption directly depends on the algebraic strength of S-box.
Abid Mahboob   +5 more
doaj   +1 more source

Increased Risk of Sarcomas in Children With Congenital Anomalies: Findings From the Genetic Overlap Between Anomalies and Cancer in Kids (GOBACK) Registry Linkage Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric sarcomas are a heterogeneous group of tumors that contribute disproportionately to cancer mortality in children. Although congenital anomalies are among the strongest known risk factors for childhood cancer, the risk of specific sarcoma subtypes among affected individuals has not yet been thoroughly evaluated. Procedure We
Russ Wolters   +17 more
wiley   +1 more source

A New Image Encryption Algorithm Based on Single S-Box and Dynamic Encryption Step

open access: yesIEEE Access, 2021
Chaotic-based S-box image encryption schemes promise to be a practical solution for securing digital images. However, the high-dimensional continuous chaotic has increased the algorithm’s complexity.
Wang Ji Jun, Tan Soo Fun
doaj   +1 more source

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi   +5 more
wiley   +1 more source

Side-Channel Analysis of Chaos-Based Substitution Box Structures

open access: yesIEEE Access, 2019
There is a theoretically strong relationship between chaos and cryptology. In practice, one of the most successful applications of this relationship is chaos-based s-box structures.
Mehmet Sahin Acikkapi   +2 more
doaj   +1 more source

A Novel Optimization Method for Constructing Cryptographically Strong Dynamic S-Boxes

open access: yesIEEE Access, 2020
The resistance of S-box-based cryptosystems to linear cryptanalysis is often determined by the nonlinearity (NL) and the linear approximation probability (LAP) of the underlying S-box.
Saleh Ibrahim, Alaa M. Abbas
doaj   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada   +6 more
wiley   +1 more source

A new cryptosystem based on an enhanced Vigenere cipher incorporating large SBoxes [PDF]

open access: yesE3S Web of Conferences
The present paper explains the development of an innovative cryptographic system designed to encrypt color images at the pixel level. This technique relies on a significant enhancement of the conventional Vigenere method, incorporating the implementation
Chemlal Abdelhakim   +5 more
doaj   +1 more source

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