Results 61 to 70 of about 404,248 (295)

Research on the construction of radio environment map based on revised spatial interpolation

Dianzi Jishu Yingyong, 2018
Radio Environment Map(REM) provides accurate or comprehensive information support to dynamic spectrum access of cognitive radio networks. Practically, the sample size always fails to reach the application requirements due to the limitation of ...
Zi Ran, Chang Jun, Zong Rong, Wang Ruonan, Liao Guiwen   +4 more
doaj   +1 more source

The magnetic fields of large Virgo cluster spirals: Paper II [PDF]

, 2012
The Virgo cluster of galaxies provides excellent conditions for studying interactions of galaxies with the cluster environment. Both the high-velocity tidal interactions and effects of ram pressure stripping by the intracluster gas can be investigated in
Baars, Beck, Beck, Beck, Cayatte, Cayatte, Chemin, Chung, Chung, Chyży, Chyży, Chyży, Chyży, Condon, Crowl, Drzazga, Gioia, K. T. Chyży, Koopmann, M. Soida, M. Urbanik, M. Weżgowiec, Oosterloo, Otmianowska-Mazur, Paturel, Pfrommer, R. Beck, Roediger, Rudnick, Schulz, Soida, Soida, Taylor, Tschöke, Tüllmann, Urbanik, Veilleux, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Weiler, Weżgowiec, Weżgowiec, Yoshida   +45 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

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

Modulated Radio Frequency Stealth Waveforms for Ultra-Wideband Radio Fuzes

Entropy
The increasingly complex electromagnetic environment of modern warfare and the proliferation of intelligent jamming threaten to reduce the survival rate of radio fuzes on the battlefield.
Kaiwei Wu, Bing Yang, Shijun Hao, Yanbin Liang, Zhonghua Huang   +4 more
doaj   +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, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Users’ QoS driven radio resources optimization based on radio environment map

Journal of Physics: Conference Series, 2019
Abstract The over the top service optimization in wireless networks is a challenging task due to the diversity of wireless terminals, variety of required quality of service requirements and diversity of wireless service access networks. In this paper, we propose an approach to optimize the allocation of users to wireless networks or even
T Javornik, A Švigelj, A Hrovat, I Ozimek   +3 more
openaire   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Optimal field measurement design for radio environment mapping

2013 47th Annual Conference on Information Sciences and Systems (CISS), 2013
White spaces are locally or temporally available frequencies that are principally reserved for primary use such as TV broadcasting. The currently prevalent view to the utilization of such spectrum resources is that white space devices must query a geolocation database to obtain information about available frequencies and related maximum transmission ...
Ojaniemi, J, Kalliovaara, J, Alam, A, Poikonen, J, Wichman, R   +4 more
openaire   +6 more sources

Limited Sampling Spatial Interpolation Evaluation for 3D Radio Environment Mapping

Sensors, 2023
The increasing densification and diversification of modern and upcoming wireless networks have become an important motivation for the development of agile spectrum sharing. Radio environment maps (REMs) are a basic tool for spectrum utilisation characterisation and adaptive resource allocation, but they need to be estimated through accurate ...
Antoni Ivanov, Krasimir Tonchev, Vladimir Poulkov, Agata Manolova, Atanas Vlahov   +4 more
openaire   +3 more sources