Results 81 to 90 of about 4,519 (235)

Turbo Codes Performance Optimization over Block Fading Channels

Journal of Communications Software and Systems, 2006
In this paper, the best achievable performance of a turbo coded system on a block fading channel is obtained, assuming binary antipodal modulation. A rate 1/3 turbo code is considered, obtained by concatenating, through a random interleaver, an 8-states ...
Fulvio Babich, Guido Montorsi, Francesca Vatta   +2 more
doaj  

Block Turbo Codes (BTC)

, 2006
92 p. Since the discovery of Turbo Codes in 1993, it has became clear that the real limit on communication rate was not set by Shannon's Capacity Theorem but by the complexity of the coding schemes and its cost of implementation. In recent years much research has been directed towards finding efficient and practical coding schemes.
openaire   +1 more source

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

Archaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather, Matthias Leopold, Kaitlin Sullivan, Kane Ditchfield, Tom Horrocks, Luke Gliganic, Emma Beckett, Diana Patalwala, Emielda Yusiharni, Michael Smirk, William Hiscock, Jo McDonald   +11 more
wiley   +1 more source

Distributed Symmetric Turbo Coded OFDM Scheme Incorporated with STBC-MIMO Antennas for Coded-Cooperative Wireless Communication under Wideband Noise Jamming Environment [PDF]

Radioengineering
This research paper proposes a novel anti-jamming technique based on a single-relay distributed symmetric Turbo coded orthogonal frequency division multiplexing (DSTC-OFDM) scheme.
A. M. A. Mirza, A. Khawaja, S. Mughal, R. A. Butt   +3 more
doaj  

The role of generative AI in collaborative problem‐solving of authentic challenges

British Journal of Educational Technology, EarlyView.
Abstract This study investigates undergraduate and postgraduate teamwork in a four‐week ‘Generative AI for Social Good’ hackathon, focusing on how students use GAI tools in authentic problem‐solving within their learning ecology. It examines the factors that foster productive collaboration and explores evidence of AI extending human cognition beyond ...
Nancy Law, Nan Wang, Ming Ma, Zhichun Liu, Leon Lei, Shuhui Feng, Xiao Hu, Jack Tsao   +7 more
wiley   +1 more source

Assessing novelty, feasibility and value of creative ideas with an unsupervised approach using GPT‐4

British Journal of Psychology, EarlyView.
Abstract Creativity is defined by three key factors: novelty, feasibility and value. While many creativity tests focus primarily on novelty, they often neglect feasibility and value, thereby limiting their reflection of real‐world creativity. In this study, we employ GPT‐4, a large language model, to assess these three dimensions in a Japanese‐language
Felix B. Kern, Chien‐Te Wu, Zenas C. Chao   +2 more
wiley   +1 more source

The L108I polymorphism in mouse prion protein drives spontaneous disease and enhances transmission of atypical and classical prion strains

Brain Pathology, EarlyView.
A single amino acid change (L108I) combined with PrP overexpression drives spontaneous atypical prion formation in mice, enabling also efficient propagation of diverse prion strains. This model allows studying how spontaneous prion diseases arise and provides powerful tools for investigating strain emergence, transmission barriers, and mechanisms ...
Hasier Eraña, Enric Vidal, Natalia Fernández‐Borges, Jorge M. Charco, Carlos M. Díaz‐Domínguez, Cristina Sampedro‐Torres‐Quevedo, Josu Galarza‐Ahumada, Eva Fernández‐Muñoz, Maitena San‐Juan‐Ansoleaga, Miguel Ángel Pérez‐Castro, Nuno Gonçalves‐Anjo, Patricia Piñeiro, Samanta Giler, Nora González‐Martín, Nuria L. Lorenzo, Africa Manero‐Azua, Guiomar Perez de Nanclares, Mariví Geijo, Manuel A. Sánchez‐Martín, Jesús R. Requena, Joaquín Castilla   +20 more
wiley   +1 more source

The DNA/RNA autophagy protein SIDT2 as a novel neuropathological hallmark in Huntington disease

Brain Pathology, EarlyView.
SIDT2‐immunoreactive inclusions are observed in the striatum, cerebral cortex, and hypothalamus in HD cases with different Vonsattel grades, and the frequency of SIDT2‐immunoreactive inclusions is associated with longer CAG repeats in the huntingtin gene.
Sanaz Gabery, Sofia Bergh, Chrisovalantou Huridou, Rachel Y. Cheong, Barbara Baldo, Paul Günther Scheunemann, Marie‐Louisa Schoebel, Linda Holmquist Mengelbier, Elisabet Englund, Catriona McLean, Carsten Saft, Deniz Kirik, Maria Björkqvist, Glenda Halliday, Elisabeth Petrasch‐Parwez, Huu Phuc Nguyen, Jonasz Jeremiasz Weber, Åsa Petersén   +17 more
wiley   +1 more source

OSA Initiates Histone Lactylation That Drives PDE4B/FUS/AGT Axis to Pulmonary Hypertension

Cell Proliferation, EarlyView.
This study illustrates how chronic intermittent hypoxia (CIH) in obstructive sleep apnea (OSA) leads to hypertension via increased oxidative stress and mitochondrial dysfunction in pulmonary artery smooth muscle cells (PASMCs), causing glycolytic dysregulation. Lactate accumulation enhances histone lactylation, upregulating phosphodiesterase 4B (PDE4B),
Li Yang, Qing Ni, Yan He, Shijie Liu, Lulu Gan, Anni Dai, Yang Hu, Qian Liu, Xueling Yang, Jiqian Li, Yi Tao, Yunyu Li, Mingyue Xu   +12 more
wiley   +1 more source

Growth differentiation factor 15 mitigates lipotoxic steatosis by preserving mitochondrial morphodynamics and augmenting fatty acid oxidation in hepatocytes and liver organoids

Diabetes, Obesity and Metabolism, EarlyView.
Abstract Aims Growth differentiation factor 15 (GDF15) has emerged as a promising metabolic regulator with hepatoprotective properties in metabolic dysfunction‐associated steatotic liver disease (MASLD), yet its underlying mechanisms remain elusive.
Jia Li, Qi Zhou, Mengmeng Xia, Yakun Li, Junyu Wang, Manon Buist‐Homan, Vincent E. de Meijer, Hans Blokzijl, Klaas Nico Faber, Han Moshage   +9 more
wiley   +1 more source