Results 31 to 40 of about 911,873 (313)

Alfvén waves in the near-PSBL lobe: Cluster observations [PDF]

open access: yes, 2006
Electromagnetic low-frequency waves in the magnetotail lobe close to the PSBL (Plasma Sheet Boundary Layer) are studied using the Cluster spacecraft.
Vörös, Z.   +40 more
core   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Simplified radar architecture based on information metasurface

open access: yesNature Communications
Modern radar typically employs a chain radio-frequency (RF)-digital architecture, imposing high costs, substantial hardware burdens, and integration challenges. Here, we propose a simplified radar architecture based on space-time-coding (STC) information
Si Ran Wang   +12 more
doaj   +1 more source

A Terahertz Programmable Digital Metasurface Based on Vanadium Dioxide

open access: yesPhotonics
Metasurfaces can realize the flexible manipulation of electromagnetic waves, which have the advantages of a low profile and low loss. In particular, the coding metasurface can flexibly manipulate electromagnetic waves through controllable sequence ...
Tianrui Pan   +6 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

open access: yesMolecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat   +8 more
wiley   +1 more source

Harmonic information transitions of spatiotemporal metasurfaces

open access: yesLight: Science & Applications, 2020
Metamaterials: Heightened harmonics from moving metasurfaces The generation of light harmonics by rapidly-changing metasurfaces could provide exciting new methods of information processing.
Haotian Wu   +6 more
doaj   +1 more source

High‐Precision Direction‐of‐Arrival Estimations Using Digital Programmable Metasurface

open access: yesAdvanced Intelligent Systems, 2022
Commonly, phased array antennas are used to provide spatial resolution for direction of arrival (DOA) estimations. However, the phase‐array‐based DOA estimations usually require complicated system architecture and signal processing.
Jia Wei Wang   +6 more
doaj   +1 more source

Symmetric Waves Are Traveling Waves

open access: yesInternational Mathematics Research Notices, 2009
We show that horizontally symmetric water waves are traveling waves. The result is valid for the Euler equations, and is based on a general principle that applies to a large class of nonlinear partial differential equations, including some of the most famous model equations for water waves. A detailed analysis is given for weak solutions of the Camassa-
Ehrnström, Mats   +2 more
openaire   +2 more sources

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

A filtering reconfigurable intelligent surface for interference-free wireless communications

open access: yesNature Communications
The powerful capability of reconfigurable intelligent surfaces (RISs) in tailoring electromagnetic waves and fields has put them under the spotlight in wireless communications.
Jing Cheng Liang   +9 more
doaj   +1 more source

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