Results 101 to 110 of about 40,317 (298)

Computed tomography from X-rays: old 2-D results, new 3-D problems [PDF]

, 2004
We consider old results on 2-D computerized tomography methods and their relevance to new fully 3-D problems. We examine the 2-D filtered back-projection method (FBP) from several perspectives to better understand how it works.
Miller, Keith
core  

Molecularly Engineered Highly Stable Memristors with Ultra‐Low Operational Voltage: Integrating Synthetic DNA with Quasi‐2D Perovskites

Advanced Functional Materials, EarlyView.
Molecularly engineered memristors integrating Ag nanoparticle–embedded synthetic DNA with quasi‐2D halide perovskites enable ultra‐low‐operational voltage, forming‐free resistive switching, and record‐low power density. This synergistic integration of customized DNA and 2D OHP in bio‐hybrid architecture enhances charge transport, reduces variability ...
Kavya S. Keremane, Abhinav Gorthy, Luyao Zheng, Chiranth C Ravi, Haodong Wu, Jiamao Zheng, Neela H. Yennawar, Shashank Priya, Rashmi Jha, Bed Poudel   +9 more
wiley   +1 more source

Influences of structural helicity of aortic dissection on endovascular repair

iScience
Summary: Stanford type B aortic dissections often exhibit helical morphology. However, the influences of structural helicity on periprocedural and mid-to long-term adverse events after thoracic endovascular aortic repair (TEVAR) remain unclear.
Shi-Cheng Jin, Zi-Long Zhao, Xuyang Zhang, Peng Lv, Cheng Yan, Tiantong Xu, Jialing Yang, Lixin Wang, Zhihui Dong, Daqiao Guo, Xi-Qiao Feng, Weiguo Fu, Baolei Guo   +12 more
doaj   +1 more source

The Cuttlebone Blueprint for Multifunctional Metamaterials: Design Taxonomy, Functional Decoupling, and Future Horizons

Advanced Functional Materials, EarlyView.
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley   +1 more source

Characteristic CT features of pheochromocytomas - probability model calculation tool based on a multicentric study

Biomedical Papers, 2019
Objectives: The aim of the study was to evaluate the CT features of adrenal tumors in an effort to identify features specific to pheochromocytomas and second, to define a feasible probability calculation model.
Filip Ctvrtlik, Zbynek Tudos, Paulina Szasz, Zuzana Sedlackova, Igor Hartmann, Jan Schovanek, Zdenek Frysak, Iva Macova, Tomas Zelinka, Milan Hora, Eva Kocova, Jaroslav Pacovsky, Michal Krsek, Viera Lehotska, Emilia Mojtova, Josef Molnar, Vladimir Vanek, Karel Pacak, Jan Baxa   +18 more
doaj   +1 more source

Triplet‐Triplet Annihilation Enhances Photochemical Curing Contrast for Vat‐Based 3D Printing

Advanced Functional Materials, EarlyView.
Triplet–triplet annihilation photopolymerization (TTAP) resins enhance curing contrast for digital light processing (DLP) 3D printing compared to conventional Type I and II photopolymerizations at matched optical densities. By exploiting a superlinear initiation response, TTAP preserves fine details, allowing reliable fabrication of complex structures ...
Connor J. O'Dea, Evan P. Scruggs, Zachariah A. Page   +2 more
wiley   +1 more source

Strategies for Loading and Releasing Peptide Therapeutics in Biodegradable Carriers

Advanced Functional Materials, EarlyView.
A biodegradable carrier‐based peptide delivery system is a powerful treatment platform for diverse diseases, owing to its superior therapeutic efficacy and low toxicity. This review examines the conventional peptide‐loaded carrier fabrication process and its current limitations.
Wookyoung Jang, Ki Wan Bong
wiley   +1 more source

[Role of helical computed tomography in petrous bone trauma: about 12 cases at the University Hospital Ibn Rochd of Casablanca]. [PDF]

Pan Afr Med J, 2022
Traore O, Guindo I, Wakrim S, N'Diaye AS, Dembele M, Cisse I, Dackouo M, Dembele DW, Keita AD.   +8 more
europepmc   +1 more source

LL‐37 Driven Phase Transition and Stacking in Oligolamellar Gram‐Negative Bacterial Membrane Models

Advanced Functional Materials, EarlyView.
This work establishes oligolamellar bacterial membrane models to investigate how LL‐37 disrupts the complex dual‐bilayer architecture of Gram‐negative bacteria. Combining SAXS, cryo‐TEM, electrophoretic mobility measurements, and coarse‐grained simulations, it reveals cardiolipin‐driven phase transitions leading to bicelle‐like structures and membrane ...
Bettina Tran, Diane C.A. Lima, Linda Sandblad, Madeleine Ramstedt, Thereza A. Soares, Stefan Salentinig   +5 more
wiley   +1 more source

ECG non-gated multi-detector computed tomography protocol prior to catheter ablation of atrial fibrillation provides sufficient data quality with lower radiation exposure compared to ECG-gated protocol. A prospective, randomized and blinded study

Biomedical Papers, 2018
Background: The role of ECG-gating in left atrium (LA) computed tomography (MDCT) imaging is not precisely defined. Methods and Results: 62 patients were randomized according to ECG gating with prospective evaluation of image quality, Volume CT Dose ...
Zbynek Tudos, Tomas Skala, Martin Homola, Ondrej Moravec, Milos Taborsky, Martin Kocher, Marie Cerna, Filip Ctvrtlik, Frantisek Odstrcil, Katerina Langova, Olga Klementova   +10 more
doaj   +1 more source