Results 131 to 140 of about 6,748,789 (382)

Curved Bistable Origami‐Inspired Flexible Transcatheter Mitral Valve Clamping

Advanced Science, EarlyView.
A lightweight bistable curved origami dilator combines reversible deformation and high stability, offering a promising solution for minimally invasive mitral valve repair. Abstract Curved origami exhibits remarkable potential for minimally invasive medical applications owing to its unique geometric programmability and mechanical tunability. Building on
Siyu Gao, Fan Jiang, Xiuting Sun, Peng Qi, Jian Xu   +4 more
wiley   +1 more source

Synthetic aperture radar images of ocean waves, theories of imaging physics and experimental tests [PDF]

, 1984
The physical mechanism for the synthetic Aperture Radar (SAR) imaging of ocean waves is investigated through the use of analytical models. The models are tested by comparison with data sets from the SEASAT mission and airborne SAR's.
Durden, S. L., Napolitano, D. A., Smith, M. P., Vesecky, J. F.   +3 more
core   +1 more source

1120 Tissue Doppler Imaging Quantifies Early Changes in Preterm Myocardium [PDF]

, 2012
Kathryn Armstrong, Eleanor J. Molloy, Orla Franklin   +2 more
openalex   +1 more source

Moving Ship SAR Imaging Based on Parameter Estimation

Leida xuebao, 2016
The Doppler parameters of moving targets affect the conventional Synthetic Aperture Radar (SAR) imaging. In this study, the relation between the motion and Doppler parameters is established.
Yun Yajiao, Qi Xiangyang, Li Ning
doaj   +1 more source

AXL Promotes Ischemic Myelin Repair Through Alleviating Myelin Debris Deposition and Lipid Droplets Accumulation

Advanced Science, EarlyView.
Microglial AXL drives white matter repair after stroke by orchestrating the cleanup of myelin debris. Mechanistically, AXL signals through EGR1 to boost Smpd1 transcription, regulating sphingolipid metabolism and preventing lipid droplet toxicity. Restoring the pathway with ASM therapy mitigates damage, positioning AXL as a key node for therapeutic ...
Junqiu Jia, Yonghui Gan, Jia Li, Lilin Li, Hailan Meng, Min Sun, Lei Ye, Rui Mao, Xiang Cao, Shengnan Xia, Xinyu Bao, Renyuan Liu, Meijuan Zhang, Yun Xu   +13 more
wiley   +1 more source

Inter-device reproducibility of retrobulbar blood flow velocity measurements in healthy subjects using color Doppler imaging [PDF]

, 2016
Verticchio Vercellin Alice C., Carlo Alberto Cutolo, Carolina Dellafiore, Massimiliano Lava, Carmine Tinelli, Annalisa De Silvestri, Fabrizio Calliada, Giovanni Milano   +7 more
openalex   +1 more source

Data‐Driven Feedback Identifies Focused Ultrasound Exposure Regimens for Improved Nanotheranostic Targeting of the Brain

Advanced Science, EarlyView.
ABSTRACT The blood‐brain barrier (BBB) renders the delivery of nanomedicine in the brain ineffective and the detection of circulating disease‐related DNA from the brain unreliable. Here, we demonstrate that microbubble‐enhanced focused ultrasound (MB‐FUS) mediated BBB opening, supported by large‐data models predict sonication regimens for safe and ...
Hohyun Lee, Victor Menezes, Shiqin Zeng, Chulyong Kim, Cynthia M. Baseman, Jae Hyun Kim, Samhita Padmanabhan, Pranav Premdas, Naima Djeddar, Anton Bryksin, Nikhil Pandey, Pavlos Anastasiadis, Anthony J. Kim, Tobey J. MacDonald, Chetan Bettegowda, Graeme F. Woodworth, Felix J. Herrmann, Costas Arvanitis   +17 more
wiley   +1 more source

904 Left ventricular regional dysfunction in severe aortic valve stenosis: a Doppler tissue imaging study [PDF]

, 2003
V DIBELLO, M Mariani, Jan G. Grandjean, Davide Giorgi, C Palagi, M DELLEDONNE, Carmela Nardi, E Talini, M Mariani   +8 more
openalex   +1 more source

Critical Limitations in Cryogenic Laser Cooling of Solids: Symmetry‐Related Fluorescence Trapping and Condensation‐Induced Parasitic Heating

Advanced Science, EarlyView.
This study uncovers two overlooked bottlenecks in cryogenic laser cooling of solids: symmetry‐driven fluorescence trapping and water vapor condensation. We demonstrate that breaking sample symmetry enhances fluorescence escape, while condensation dominates parasitic heating below 135 K.
Biao Zhong, Jiayi Zhang, Haodong Yang, Lianzhong Deng, Mauro Tonelli, Ercang Luo   +5 more
wiley   +1 more source

One year in review: ultrasound in arthritis [PDF]

, 2016
Musculoskeletal ultrasound (MSUS) has become a relevant part of rheumatology practice and research because it substantially allows us to optimize management of rheumatic and musculoskeletal diseases. This non-invasive imaging modality is a valuable point-
IAGNOCCO, Annamaria, Naredo, Esperanza
core