Results 41 to 50 of about 262,424 (257)
Optimization of cooperative secondary users in cognitive radio networks
Engineering Science and Technology, an International Journal, 2018 In this paper, we identified the optimal number of secondary users in a cooperative spectrum sensing by maximizing the energy efficiency. We obtain the mathematical expressions and simulation results for the optimal number of secondary users using OR and
Sudhamani Chilakala, M. Satya Sai Ram
doaj +1 more source
FEBS Letters, EarlyView.Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes +4 more
wiley +1 more source
Space-time spectrum sharing based on game theory:dynamic access and penalty strategy
Tongxin xuebao, 2023 To tackle the challenge of inefficient utilization of spatiotemporal spectrum resources in heterogeneous networks, a reliable spectrum sharing strategy based on game theory was proposed for scenarios where multiple secondary users dynamically access ...
Yangyang NIU, Zhiqing WEI, Zhiyong FENG
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Detección de espectro para radio cognitiva Spectrum sensing for cognitive radio
Ingeniare: Revista Chilena de Ingeniería, 2012 Este artículo centra su atención en la capa física de las redes de radio cognitiva (CR), es decir, en las técnicas que se utilizan para detectar la presencia o ausencia de usuarios licenciados en las diferentes bandas del espectro electromagnético.
Luis Fernando Pedraza +2 more
doaj
FPGA implementation of genetic algorithm to detect optimal user by cooperative spectrum sensing
ICT Express, 2019 The major task for cognitive radio (CR) systems is to sense the spectrum holes reliably and make the secondary user share the spectrum efficiently and effectively with the primary users.
D. Damodaram, T. Venkateswarlu
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Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
wiley +1 more source
Incentives for retention of pregnant substance users: A secondary analysis [PDF]
Journal of Substance Abuse Treatment, 2010 Retention of pregnant substance users in treatment is challenging. In a multisite clinical trial, 200 pregnant substance users entering outpatient treatment at one of four programs were randomized to either three individual sessions of Motivational Enhancement Therapy for Pregnant Substance users or three individual sessions normally provided.
Gregory, Brigham +3 more
openaire +2 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation
FEBS Letters, EarlyView.Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz +11 more
wiley +1 more source
Improved spectrum sharing model in cognitive radios based on game theory
Tongxin xuebao, 2010 An improved spectrum sharing model was proposed in cognitive radios.The improved model considers com-prehensively impact on the primary users’ profits by all secondary users’ bandwidth requirement,and impact on every secondary user’s profit by other ...
HUANG Li-ya, LIU Chen, WANG Suo-ping
doaj +2 more sources