Results 151 to 160 of about 2,994 (201)

Reconfigurable Geometric Phase Matching by Multilayered Nonlinear Thin‐Film Crystals

Laser &Photonics Reviews, EarlyView.
The concept of geometric phase matching is demonstrated as a dynamically reconfigurable approach for tunable nonlinear wave mixing in multilayered nonlinear thin‐film crystals. Experimental results reveal full modulation in a bilayer structure and near‐perfect spin‐selective phase matching of second‐harmonic generation in an eight‐layer configuration ...
Danielle Ben‐Haim, Mai Tal, Xiaoxi Xu, Tal Ellenbogen   +3 more
wiley   +1 more source

Quasi-periodic oscillations of GHz-band polarization in a black hole. [PDF]

Nat Commun
Wang W, Chen J, Tian P, Ho LC, Sun X, Wang P, Zhang B, Zheng Z, Chen X, Zhang P, Zhu H, Yang W, Li B.   +12 more
europepmc   +1 more source

Evaluation of 7 Tesla pTx Body Coils Regarding Transmit and Receive Performance

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Most sites develop and use custom coils for 7 T body MRI since no standard pTx body coil exists, leading to diverse coil designs differing in transmit element type, layout, and number of receive channels. This study investigates and compares eight existing coils, including one remote body coil array and seven local arrays, regarding ...
Johannes A. Grimm, Oliver Kraff, Markus W. May, Max Lutz, Stephan Orzada, Thomas M. Fiedler, Steen Moeller, Simon Schmidt, Harald H. Quick, Armin M. Nagel, Mark E. Ladd, Sebastian Schmitter   +11 more
wiley   +1 more source

ASCT: a pipeline for standardized analysis of MEG/EEG directional connectivity. Practical guidelines for applications of source-based Directed Transfer Function. [PDF]

Front Neuroinform
Wyczesany M, Spadone S, Górski T, Łabaza A, Domagala M, Kaminski M, Ligeza TS, Capotosto P, Kroker T, Junghöfer M, Della Penna S.   +10 more
europepmc   +1 more source

Design of an In Vivo‐Like Phantom for Quantitative Body CEST MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To design and validate a reproducible in vivo‐like fat‐containing CEST phantom that enables robust quantitative CEST MRI for body applications by providing physiologically realistic relaxation properties, relevant endogenous CEST contrasts (amide, guanidino, rNOE, and semi‐solid MT), and a controlled fat component.
Petr Menshchikov, Petr Bulanov, Neele Kempa, Mark E. Ladd, Andreas Korzowski, Philip S. Boyd   +5 more
wiley   +1 more source

Discovery tools: How powerful new scientific methods and instruments emerge and catalyze innovation. [PDF]

PNAS Nexus
Krauss A.
europepmc   +1 more source

Online Crowdfunding Campaigns for People Living With ALS Demonstrate Financial Burden and Unmet Needs

Muscle &Nerve, EarlyView.
ABSTRACT Introduction/Aims People living with amyotrophic lateral sclerosis (ALS; pALS) have extensive care needs, from wheelchairs to feeding tubes to caregiving support. The financial impact of these needs on pALS and their caregivers (cALS) has not been fully explored.
Astrid Grouls, Peter A. Ubel, Minh Nguyen, Nikhita Pathapati, Steven Doerstling, Caroline E. Sloan   +5 more
wiley   +1 more source

Simultaneous Pi2 pulsation detected by CSES-01, Swarm, RBSP and Arase satellites. [PDF]

Sci Rep
Ghamry E, Yamamoto K, Marchetti D, Takahashi K, Hawash I, Khalifa M, Bulusu J, Metwaly M, Miyoshi Y, Zhima Z, Matsuoka A, Teramoto M, Kasahara Y, Tsuchiya F, Kumamoto A, Shinbori A, Shinohara I.   +16 more
europepmc   +1 more source

Repeated Pleistocene Permafrost Episodes in the Western Pannonian Basin

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Concerning the study of past periglacial processes, the Pannonian Basin is a key area as it contains the southernmost frost polygons found in Central Europe. The presence or absence of permafrost is still, however, a matter of debate, and data on the timing of frost action are also scarce.
Krisztina Sebe, Ágnes Novothny, Gergely Surányi, Barbara Varga, László Fodor, Gábor Csillag   +5 more
wiley   +1 more source

Photoacoustic device fingerprints induce bias in deep learning models. [PDF]

Sci Rep
Bender CJ, Knopp M, Holzwarth N, Rix T, Nölke JH, Dreher KK, Li Y, Kempf J, Caranovic M, Schneider F, Schellenberg M, Boland L, Haney B, Knieling F, Rother U, Seitel A, Maier-Hein L.   +16 more
europepmc   +1 more source