Results 71 to 80 of about 3,406,012 (295)

Transmission Loss in Radio Propagation

Proceedings of the IRE, 1953
The utility of the concept of transmissionloss in radio-propagation analysis is explored. The transmission loss of a radio system is defined to be the ratio of the power radiated from the transmitting antenna to the resulting signal power available from a loss-free receiving antenna.
openaire   +2 more sources

Avidin is evolutionarily conserved in fish but dispensable for development and resistance against Streptococcus agalactiae in zebrafish

FEBS Open Bio, EarlyView.
The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti, Markus J. T. Ojanen, Mataleena Parikka, Otto Kauko, Mika Rämet, Vesa P. Hytönen   +5 more
wiley   +1 more source

Identification and characterisation of calcitonin receptor isoforms expressed in glioblastoma derived glioma stem and U‐87 MG cells

FEBS Open Bio, EarlyView.
Glioblastoma cells express calcitonin receptor variants (CT receptor isoforms) that may help them survive stress. Using qPCR, transcript‐specific long‐read nanopore sequencing, immunofluorescence co‐localisation and comparative sequence analysis, this study identifies a novel alternatively spliced CALCR transcript that encodes the CTb receptor isoform ...
Pragya Gupta, Sebastian GB Furness, Tahereh Gharbi, Ric De Paoli‐Iseppi, Shweta S. Joshi, Michael Clark, David L. Hare, Peter Wookey   +7 more
wiley   +1 more source

Numerical and Experimental Methods for Estimating the Propagation Loss in Microphotonic Waveguides

Advanced Photonics Research
The accurate estimation of propagation loss in microphotonic waveguides is a crucial factor in the performance optimization of photonic integrated circuits.
Francesco Dell’Olio, Samuel M. Hörmann, Teresa Natale, Roel Baets, Alexander Bergmann   +4 more
doaj   +1 more source

Ultralow Propagation Loss Slot-Waveguide in High Absorption Active Material

IEEE Photonics Journal, 2014
A slot waveguide formed by high absorption active material is proposed to reduce the propagation loss for monolithic integration. The low propagation loss is attained by concentrating the optical field inside the low-index slot region without absorption.
Yongzhuo Li, Kaiyu Cui, Xue Feng, Yidong Huang, Fang Liu, Wei Zhang   +5 more
doaj   +1 more source

Functional Plasmonic Nanocircuits with Low Insertion and Propagation Losses

Nano Letters, 2013
We experimentally demonstrate plasmonic nano-circuits operating as sub-diffraction directional couplers optically excited with high efficiency from free-space using optical Yagi-Uda style antennas at λ= 1550 nm. The optical Yagi-Uda style antennas are designed to feed channel plasmon waveguides with high efficiency (45 % in coupling, 60 % total ...
Kriesch, Arian, Burgos, Stanley P., Ploss, Daniel, Pfeifer, Hans, Atwater, Harry A., Peschel, Ulf   +5 more
openaire   +5 more sources

MARK4 enhances stress granule formation under oxidative stress and increases tau accumulation

FEBS Open Bio, EarlyView.
MARK4 (red dots) localizes to stress granules (orange dots) and promotes their formation under oxidative stress by modulating TIA1 (blue dots). MARK4 and TIA1 synergistically increase tau (purple) accumulation, and the reduction of the TIA1 ortholog suppresses neurodegeneration in a fly model.
Sho Nakajima, Kotone Watanabe, Grigorii Sultanakhmetov, Aoi Fukuchi, Keiya Ito, Sawako Shimizu, Taro Saito, Akiko Asada, Kanae Ando   +8 more
wiley   +1 more source

Analysis of Signal Reception Mechanism of Sky Wave Long-distance Maritime Communication

MATEC Web of Conferences, 2018
Based on the principle of high frequency radio propagation, the signal reception mechanism of sky wave communication over oceans is investigated. Due to long distance signal transmission, the energy loss is inevitable, especially in the space and on the ...
Ren Huantao, Xie Qiangjun, Chai Jiajing, Xue Yi   +3 more
doaj   +1 more source

IGF2 knockout reduces but does not abolish osteosarcoma growth in vitro and in vivo

FEBS Open Bio, EarlyView.
To test whether endogenous IGF2 promotes osteosarcoma growth, IGF2 was knocked out in Saos2 cells via CRISPR‐Cas9. KO cells showed reduced proliferation in vitro, and knockout xenografts in mice reached only ~25% of wild‐type tumor volume. Insulin‐like growth factor 2 (IGF2) is implicated in osteosarcoma, but direct functional evidence of its role is ...
Shun Yao, Marco Archetti
wiley   +1 more source

The Electromagnetic Wave Propagation on the Interface between Low and High Loss Dielectrics

Advances in Condensed Matter Physics, 2010
The wave propagation on closed curved interface (a rod or ball) between low and high loss dielectrics was studied and compared with well-known wave propagation problem on flat plane interface between low loss and high loss media.
Z. E. Eremenko
doaj   +1 more source