Results 71 to 80 of about 7,826,767 (229)

Modular Metamaterials for Adaptable MRI Signal Control: Combining Dipole Array With a New Hexagon‐Based Artificial Dielectrics

Advanced Science, EarlyView.
A flexible, hexagonally packed artificial dielectric providing a wide range of effective permittivities (εr ≈ 30–1400) without lumped elements was developed for clinical and ultra‐high‐field MRI. Combined with modular passive‐dipole arrays, the system enables adaptable RF field shaping through electric‐ and magnetic‐dipole tuning.
Santosh Kumar Maurya, Ilan Goldberg, Rita Schmidt   +2 more
wiley   +1 more source

Commission 27 : variable stars

, 2016
: The study of variable stars has played a central role in astronomy for over 400 years, and more so in the present than at any time in history. Stars, especially variable stars, are astrophysical laboratories for understanding physical processes in the ...
Jeffrey, Simon, Kepler, S.O., Eyer, Laurent, Catelan, M\ue1rcio, Stello, Dennis, Strassmeier, Klaus, Handler, Gerald, Pollard, Karen, Kolenberg, Katrien, Hekker, Saskia, Uytterhoeven, Katrien, Mkrtichian, David   +11 more
core   +1 more source

Classification of variable stars in the WFCAM Transit Survey

, 2013
The WFCAM Transit Survey is a photometric survey in the near-infrared and aims at finding Earth-like planets transiting M-dwarf stars. As a by-product of the survey, a variety of variable stars has been detected.
Hristo Stoev, David Barrado, Andrés Moya, Luis M. Sarro   +3 more
core   +1 more source

Variable Stars [PDF]

, 2014
Like a constellation of variable stars, these poems grow brighter and darker, depending on their proximity to loss. Throughout, the poems grapple with various kinds of losses, and attempt to find solace and half-answers in likely and unlikely places ...
Winn, Sarah Ann
core   +1 more source

Giant Direct Magnetoelectric Effect in Nanocomposite CoFe2O4:PVDF‐TrFE Thin Films

Advanced Science, EarlyView.
A novel three‐step grow‐etch‐fill fabrication approach creates structured cobalt ferrite/ferroelectric polymer nanocomposites with high interfacial areas. Driven by efficient strain‐mediated coupling, this crystalline system achieves a giant room‐temperature magnetoelectric coefficient nearly two orders of magnitude higher than other CFO/PVDF‐TrFE thin
Muireann de h‐Óra, Lynette Keeney, Rui Miguel Gonçalves Carvalho, Aliona Nicolenco, Tuhin Maity, Jordi Sort, Luís Amorim, Pedro Martins, Judith MacManus‐Driscoll   +8 more
wiley   +1 more source

Spontaneous Cyclic Levitation of Glycerol‐Water Droplets at Low Pressures

Advanced Science, EarlyView.
Under low pressure, a minute glycerol addition transforms the chaotic dynamics of freezing water droplets into cyclic levitation. Freeze‐concentration preserves liquid pathways that relax expansion‐induced stress, while freezing point depression weakens asymmetric vaporization recoil.
Chen Xu, Renjie Hua, Wei Ma, Fuqiang Chu, Dong Liang, Xueshi Li, Qirui Zhang, Yuan Dong, Xuehu Ma, Xiao Yan, Shuhuai Yao   +10 more
wiley   +1 more source

Unveiling the Interfacial Dynamics of Crosslinked Biodegradable Polycaprolactone Solid Polymer Electrolytes and Li Metal During Lithium Plating and Stripping via Operando ATR‐FTIR Spectroscopy

Advanced Science, EarlyView.
This study presents a comprehensive interfacial characterization of the biodegradable PCL solid‐polymer electrolytes (SPEs) with Li metal, utilizing an advanced operando ATR‐FTIR spectroscopy. The investigation elucidates the interphase properties during Li plating/stripping in a zero‐excess cell configuration.
Jian‐Fen Wang, Matthias Weiling, Felix Pfeiffer, Marian C. Stan, Martin Winter, Masoud Baghernejad   +5 more
wiley   +1 more source

Variable Stars and Science and Math Education

, 2015
Observation, analysis, and interpretation of variable stars can be a powerful tool for effective science and math ...
Percy, John R.
core  

Oral Recombinant Human Collagen III Protects Gastric Mucosa via G‐Quadruplex‐Mediated Activation of the Pla2g4a‐Prostaglandin Axis

Advanced Science, EarlyView.
Orally administered recombinant human type III collagen protects the gastric mucosa from ethanol‐induced injury by coordinating redox homeostasis, epithelial barrier repair, and arachidonic acid–prostaglandin metabolism. Gastric digestion releases the pentapeptide GPAEF, which interacts with the Pla2g4a promoter G‐quadruplex in a structure‐dependent ...
Xinyue Lan, Qiu Dai, Yanhui Wang, Jiaxuan Gu, Chengyun Wang, Weicheng Xu, Xinru Gao, Jiageng Cheng, Wentao Geng, Xiaowen Wu, Haihang Li, Xiaoyun He, Shengwei Fu, Longjiao Zhu, Wentao Xu   +14 more
wiley   +1 more source

Engineered Peptide Self‐Assembled Nanofibers for Enhanced STING Activation: A Promising Nanodelivery Platform for Immunotherapy of Pediatric Solid Tumors

Advanced Science, EarlyView.
An engineered peptide self‐assembled nanofiber platform, designed to replicate STING–cGAMP binding motifs, facilitates pH‐responsive cytosolic delivery of cGAMP, enhances the endoplasmic reticulum with high efficiency, and robustly activates the STING pathway.
Yubin He, Xiao Lu, Chang qing Yang, Ran Zhang, Bo Wan, Xin Ni, Dong Mei   +6 more
wiley   +1 more source