Results 81 to 90 of about 11,019 (249)

Regional and Compartmental Changes Drive Progressive Patterns of Striatal Degeneration in X‐Linked Dystonia Parkinsonism

Annals of Neurology, EarlyView.
Objective Initially described in 1976, X‐linked dystonia parkinsonism (XDP) is a neurodegenerative disease that can be characterized by the presentation of dystonia and parkinsonism symptoms. Although this disease bears some resemblance to other neurodegenerative diseases in terms of symptomatology, the pathological signature of XDP is still unclear ...
Adelie Y.S. Tan, Nakhon. S.S.S. Thai, Christine J. Arasaratnam, Seung A. Han, Ellen B. Penney, Geraldine Acuña‐Sunshine, Cid Czarina E. Diesta, Mark C. Ang, Edwin Muñoz, Cara Fernandez‐Cerado, Victor Cleofas, G. Paul Legarda, Salvie Velasco, Michelle A. Sy, Clinton P. Turner, Mike Dragunow, Maurice A. Curtis, Ann. M. Graybiel, Richard L.M. Faull, Malvindar K. Singh‐Bains   +19 more
wiley   +1 more source

FPGA BASED HARDWARE KEY FOR TEMPORAL ENCRYPTION [PDF]

ICTACT Journal on Communication Technology, 2010
In this paper, a novel encryption scheme with time based key technique on an FPGA is presented. Time based key technique ensures right key to be entered at right time and hence, vulnerability of encryption through brute force attack is eliminated ...
B. Lakshmi, E. Kirubakaran, T.N.Prabakar
doaj  

Impossible 4-Tuple Attack: A New Mixture-Based Cryptanalysis Applied to Reduced-Round AES-128

IEEE Access
Mixture differential cryptanalysis is a powerful technique for evaluating the robustness of Substitution-Permutation Network (SPN)-structured block ciphers, including the Advanced Encryption Standard (AES).
Masroor Hajari, Mahmoud Salmasizadeh, Javad Mohajeri, Siavash Ahmadi, Atiyeh Mirzaie   +4 more
doaj   +1 more source

Biosynthesis of the Fully Saturated C16 Homosesquiterpene Descartane Through Deprotonation With Cyclopropanation

Angewandte Chemie International Edition, EarlyView.
A non‐canonical C16 sesquiterpene synthase from Morganella morganii produces the unusual scaffold descartane. Its cyclisation mechanism was rationalised by isotopic labelling experiments and DFT calculations. Site‐directed mutagenesis altered enzyme function, resulting in alternative products, including voltairene, which requires a different ...
Kexin Yang, Philip Troycke, Bernd Goldfuss, Michael Groll, Jeroen S. Dickschat   +4 more
wiley   +1 more source

Mechanistic Diversity in Photoexcited Radical Redox Chemistry: A Critical Evaluation

Angewandte Chemie International Edition, EarlyView.
Many high‐profile examples of photoredox catalysis are proposed to proceed via excitation of an open‐shell intermediate form of the catalyst. However, there is much debate over whether such mechanisms are realistic and, if so, exactly how they can occur.
Samuel J. Horsewill, Ryan Phelps, Joshua P. Barham, Daniel J. Scott   +3 more
wiley   +1 more source

ToFA: Towards Fault Analysis of GIFT and GIFT-like Ciphers Leveraging Truncated Impossible Differentials

Transactions on Cryptographic Hardware and Embedded Systems
In this work, we introduce ToFA, the first fault attack (FA) strategy that attempts to leverage the classically well-known idea of impossible differential cryptanalysis to mount practically verifiable attacks on bit-oriented ciphers like GIFT and ...
Anup Kumar Kundu, Shibam Ghosh, Aikata Aikata, Dhiman Saha   +3 more
doaj   +1 more source

Designing PLA/PHBV Implants With Degradation Matched to Normal or Inflammatory Tissues

Journal of Applied Polymer Science, EarlyView.
PLA/PHBV blends are investigated under simulated normal and pathological conditions. Multivariate statistical analysis decouples the competing effects of water‐uptake‐driven hydrolysis and crystallinity‐imposed barriers. Melt‐state rheological parameters serve as structural probes linking phase morphology to degradation kinetics. A semi‐empirical model
Luyao Gao, Aleksey D. Drozdov, Yaqing Liu   +2 more
wiley   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

The Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

The Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman, Robert K. Carr, Kate Trinajstic, Zerina Johanson, Oleg A. Lebedev   +4 more
wiley   +1 more source

Cryptanalysis of QARMAv2

IACR Transactions on Symmetric Cryptology
QARMAv2 is a general-purpose and hardware-oriented family of lightweight tweakable block ciphers (TBCs) introduced in ToSC 2023. QARMAv2, as a redesign of QARMAv1 with a longer tweak and tighter security margins, is also designed to be suitable for ...
Hosein Hadipour, Yosuke Todo
doaj   +1 more source