Results 31 to 40 of about 522,559 (296)

Analytical Model for Outdoor Millimeter Wave Channels using Geometry-Based Stochastic Approach

, 2016
The severe bandwidth shortage in conventional microwave bands has spurred the exploration of the millimeter wave (MMW) spectrum for the next revolution in wireless communications.
Li, Yonghui, Muhammad, Nor Aishah, Vucetic, Branka, Wang, Peng   +3 more
core   +1 more source

Positrons from dark matter annihilation in the galactic halo: theoretical uncertainties [PDF]

, 2008
Indirect detection signals from dark matter annihilation are studied in the positron channel. We discuss in detail the positron propagation inside the galactic medium: we present novel solutions of the diffusion and propagation equations and we focus on ...
Delahaye, T., Donato, F., Fornengo, N., Lineros, R., Salati, P.   +4 more
core   +3 more sources

D1.2 Channel and Propagation Models

, 2021
This deliverable gives the results of the ARIADNE project's Task 1.2: Channel measurement and modelling. The results herein comprise two years of work on channel measurement setups, channel measurements, subsequent channel models, line-of-sight channel models for gas and rain attenuation, reconfigurable intelligent surface channel modelling, ray ...
Haneda, Katsuyuki, Mar Francis De Guzman,, Di Renzo, Marco, Xuewen Qian, Danufane, Fadil H., Hrasnica, Halid, Dimitrios Selimis,, Fotis Lazarakis,, Alexandridis, Antonis, Juhana Lankinen,, Tachporn Sanguanpuak,, L��ms��, Jukka, Joonas Kokkoniemi,, Juha Pyhtil��,, Sangi, Pekka, Santiago P��rez-Pe��a,, Domingo Pimienta-Del-Valle,, Pedro Garcia-Del-Pino,, Riera, Jos�� Manuel, Evangelos Papasotiriou,, Alexandros-Apostolos A. Boulogeorgos, Alexiou, Angeliki   +21 more
openaire   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Harmonic generation and filamentation: when secondary radiations have primary consequences

, 2014
In this Letter, it is experimentally and theoretically shown that weak odd harmonics generated during the propagation of an infrared ultrashort ultra-intense pulse unexpectedly modify the nonlinear properties of the medium and lead to a strong ...
Billard, F., Béjot, P., Cormier, E., Faucher, O., Hertz, E., Karras, G., Lavorel, B.   +6 more
core   +1 more source

Targeted modulation of IGFL2‐AS1 reveals its translational potential in cervical adenocarcinoma

Molecular Oncology, EarlyView.
Cervical adenocarcinoma patients face worse outcomes than squamous cell carcinoma counterparts despite similar treatment. The identification of IGFL2‐AS1's differential expression provides a molecular basis for distinguishing these histotypes, paving the way for personalized therapies and improved survival in vulnerable populations globally.
Ricardo Cesar Cintra, Lucca Paolo Hsu Helmich, Daniel Rodrigues de Bastos, Laura Sichero, Patrícia Savio de Araujo‐Souza, Fabio Passetti, Luisa Lina Villa   +6 more
wiley   +1 more source

Virtual Drive Testing of Adaptive Antenna Systems in Dynamic Propagation Scenarios for Vehicle Communications

IEEE Access, 2018
Virtual drive testing (VDT) has gained great interest from both industry and academia, owing to its promise to replay field trials in a controllable laboratory condition. VDT is especially appealing for vehicle communication scenarios, where actual field
Wei Fan, Lassi Hentila, Fengchun Zhang, Pekka Kyosti, Gert Frolund Pedersen   +4 more
doaj   +1 more source

3-D Statistical Channel Model for Millimeter-Wave Outdoor Mobile Broadband Communications

, 2015
This paper presents an omnidirectional spatial and temporal 3-dimensional statistical channel model for 28 GHz dense urban non-line of sight environments.
Rappaport, Theodore S., Samimi, Mathew K.   +1 more
core   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source

Near-Ground Propagation Channel Modeling and Analysis in Underground Mining Environment at 2.4 GHz

IEEE Open Journal of Antennas and Propagation
This paper presents a detailed measurement and performance analysis of near-ground propagation channels in an underground mine for both Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) scenarios.
Isam Eddine Lamri, Mourad Nedil, Mohamed Nasr Eddine Temmar, Nahi Kandil   +3 more
doaj   +1 more source