Results 91 to 100 of about 6,676 (242)

Detection of different kidney stone types: an ex vivo comparison of ultrashort echo time MRI to reference standard CT [PDF]

, 2016
BACKGROUND AND PURPOSE: With the development of ultrashort echo time (UTE) sequences, it may now be possible to detect kidney stones by using magnetic resonance imaging (MRI).
Bridges, Mellena D., Cernigliaro, Joseph G., Giesbrandt, Jamie G., Haley, William E., Ibrahim, El-Sayed H., Pooley, Robert A., Williams, James C.   +6 more
core   +1 more source

Dilute but Dense – Reversible Crosslinking Enables Water‐Rich (Bio)polymer Condensates

Advanced Science, EarlyView.
Reversible crosslinking between two types of (bio)polymers drives liquid–liquid phase separation even in good solvent. The arrangement of binding motifs controls condensate formation and density, and internal network structure. Simulations and theory reveal a closed‐loop coexistence phase diagram at very low monomer concentrations and re‐entrant ...
Xinxiang Chen, Jude Ann Vishnu, Pol Besenius, Julian König, Friederike Schmid   +4 more
wiley   +1 more source

On the accuracy and reproducibility of a novel probabilistic atlas-based generation for calculation of head attenuation maps on integrated PET/MR scanners [PDF]

, 2017
Purpose To propose an MR-based method for generating continuous-valued head attenuation maps and to assess its accuracy and reproducibility. Demonstrating that novel MR-based photon attenuation correction methods are both accurate and reproducible is ...
Catana, Ciprian, Chen, Kevin T., Chonde, Daniel B., Izquierdo-Garcia, David, Poynton, Clare B.   +4 more
core   +1 more source

Non‐Equilibrium Synthesis Methods to Create Metastable and High‐Entropy Nanomaterials

Advanced Science, EarlyView.
ABSTRACT Stabilizing multiple elements within a single phase enables the creation of advanced materials with exceptional properties arising from their complex composition. However, under equilibrium conditions, the Hume–Rothery rules impose strict limitations on solid‐state miscibility, restricting combinations of elements with mismatched crystal ...
Shuo Liu, Chaochao Dun, Jeffrey J. Urban, Mark T. Swihart   +3 more
wiley   +1 more source

Smart Denture with Embedded Thin‐Film Temperature Sensors Patterned by Femtosecond Laser Pulse for Elderly Healthcare

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
We demonstrate the direct‐laser patterning of a gold thin film on polymethyl methacrylate to fabricate a temperature sensor for dentures. The temperature sensor‐embedded smart dentures are evaluated in an oral environment, enabling in‐situ monitoring for elderly healthcare.
Han Ku Nam, Yong Kwon Chae, Seoung‐Jin Hong, Younggen Lee, Dongwook Yang, Byunggi Kim, Sang Wook Kang, Young‐Jin Kim   +7 more
wiley   +1 more source

ULTRASHORT TIME ECHO MRI SEQUENCE TO QUANTIFY VERTEBRAL BONE MORPHOLOGY IN YOUNG ADULTS

Current Directions in Biomedical Engineering
While MRI is the modality of choice for soft tissue imaging, its ability to visualize bone structures remains limited. In contrast, CT provides superior bone imaging but involves ionizing radiation, making it suboptimal for longitudinal studies in ...
Conticello Salvatore, Jung Bernd, Dozio Scilla, Beutler-Minth Verena, Bähler Philippe, Schmid Stefan, Büchler Philippe   +6 more
doaj   +1 more source

Evaluation of cortical bone perfusion using dynamic contrast enhanced ultrashort echo time imaging: a feasibility study. [PDF]

, 2019
Background:Dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) has been used to study perfusion in a wide variety of soft tissues including the bone marrow.
Bydder, Graeme, Du, Jiang, Jang, Hyungseok, Shao, Hongda, Sheth, Vipul, Wan, Lidi, Wu, Mei   +6 more
core  

Ultrashort Echo-Time MRI for the Assessment of Tracheomalacia in Neonates

Chest, 2020
Bronchoscopy is the gold standard for evaluating tracheomalacia; however, reliance on an invasive procedure limits understanding of normal airway dynamics. Self-gated ultrashort echo-time MRI (UTE MRI) can assess tracheal dynamics but has not been rigorously evaluated.This study was a validation of UTE MRI diagnosis of tracheomalacia in neonates using ...
Erik B, Hysinger, Alister J, Bates, Nara S, Higano, Dan, Benscoter, Robert J, Fleck, Catherine K, Hart, Gregory, Burg, Alessandro, De Alarcon, Paul S, Kingma, Jason C, Woods   +9 more
openaire   +3 more sources

Efficient Conductivity Enhancement of Flexible Polyaniline Films Induced by Ultrafast Photoexcitation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work uses ultrafast photoexcitation to enhance doped polyaniline films' conductivity and transistor transconductance. Polyaniline (PANI) exhibits remarkable electrical conductivity and mechanical flexibility, rendering it widely applicable in flexible electronic devices.
Jiawei Li, Zhengjie Song, Xiangyu Chen, Yunfan Yue, Sheng Li, Zhongle Zeng, Jiakang Zhou, Huan Wang, Niannian Yu, Xuewen Wang, Qingjie Zhang   +10 more
wiley   +1 more source

Operando Monitoring Interfacial pH Gradients and Ion Kinetics in Proton‐Coupled Electron Transfer Reactions through Dual‐Loop Electrochemical Methodology

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
We present a dual‐loop methodology for real‐time mapping of interfacial pH that distinguishes electric field effects from changes in proton activity. This universal tool reveals significant pH gradients and identifies ion mobility and buffer capacity as key regulators, providing crucial insights for optimizing electrocatalyst performance in energy ...
Pengbo Ding, Zhuoao Li, Lixiu Guan, Dan Xing, Qitao Lian, Zixiang Bai, Junguang Tao   +6 more
wiley   +1 more source