Results 231 to 240 of about 171,757 (316)

Temperature‐Dependent Chain Structures during Solution‐Grown Crystallization via Atomic Force Microscopy

Macromolecular Rapid Communications, EarlyView.
AFM‐based single‐molecule force spectroscopy was employed to investigate temperature‐dependent single‐chain folding structures of semi‐crystalline PEO. Force–volume measurements enabled correlation of force–extension behavior with local crystal morphology. Results reveal temperature‐dependent aggregation structures, with intermediate structures favored
Dingrui Wang, Xiaobin Liang, Ken Nakajima   +2 more
wiley   +1 more source

Branch retinal artery occlusion time to presentation and diagnosis: a retrospective review. [PDF]

Int J Retina Vitreous
El-Sabrout H, Lee D, Shah R, Gilbert AL, Patel A, Sax D, Reed M, Alavi M, Vora N, Hwang C, Mannis T, Dokey A, Moore S, Vora RA.   +13 more
europepmc   +1 more source

Resonant X‐Ray Diffraction of Conjugated Polymers at the Selenium K‐Edge

Macromolecular Rapid Communications, EarlyView.
Analogous to isomorphous replacement used in X‐ray crystallography studies of proteins, substituting sulfur for selenium in conjugated polymers enables resonant diffraction studies of molecular packing down to the length scale of π‐‐π stacking. Two selenium‐containing polymers are studied with a comparison made between sulfur K‐edge and selenium K‐edge
Guillaume Freychet, Nigel Kirby, Matthew Gebert, Yun‐Hi Kim, Qiao He, Martin Heeney, Christopher R. McNeill   +6 more
wiley   +1 more source

Pushing the limits of cardiac MRI: deep-learning based real-time cine imaging in free breathing vs breath hold. [PDF]

Eur Radiol
Klemenz AC, Watzke LM, Deyerberg KK, Böttcher B, Gorodezky M, Manzke M, Dalmer A, Lorbeer R, Weber MA, Meinel FG.   +9 more
europepmc   +1 more source

Bechgaard Salt‐Like Polymers and Their Applications in Organic Electronics

Macromolecular Rapid Communications, EarlyView.
The report presents a flexible conducting polymer micro‐wire grown from the vapor phase via an oxidative polymerization route. Electrical measurements show that the produced micro‐wires have relatively high conductivity and non‐linear electrical characteristics.
Bartlomiej Kolodziejczyk
wiley   +1 more source

Melanocortin-4 Receptor Gene Variants and Weight Change Following Switch to Integrase Inhibitor-Based Antiretroviral Therapy. [PDF]

Open Forum Infect Dis
Hulgan T, Erlandson KM, Bradford Y, Tassiopoulos K, Wu K, Bares SH, Brown TT, Lake JE, Leonard M, McComsey GA, Ritchie MD, Sax PE, Koethe JR, Haas DW.   +13 more
europepmc   +1 more source

A Spatio‐Temporal Diffusion Model for Cardiac Real‐Time Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Real‐time imaging of cardiac function is favorable due to shorter scan times and becomes necessary when arrhythmia or inability to hold breath leads to insufficient quality of electrocardiogram (ECG)‐gated Cartesian cine. However, comparable spatio‐temporal resolution can only be achieved in undersampled settings, which in turn demand ...
Oliver Schad, Julius Frederik Heidenreich, Nils Petri, Viktor Hartung, Alena Kollmann, Thorsten Alexander Bley, Peter Nordbeck, Bernhard Petritsch, Tobias Wech   +8 more
wiley   +1 more source

Continuity of Primary Care and Preventable Hospitalization for Acute Conditions: A Machine Learning-Based Record Linkage Study. [PDF]

Ann Fam Med
Nguyen NMP, Borah BJ, Barr M, Harris-Roxas B, Sharma A.   +4 more
europepmc   +1 more source

Optimized Detection of Left Ventricular Hyperpolarized [1‐13C]Pyruvate Signal in Human Cardiac Metabolic Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aimed to improve the analysis of the left ventricular (LV) blood pool hyperpolarized [1‐13C]pyruvate signal for a more reliable quantification of downstream metabolic outcome. Methods Hyperpolarized [1‐13C]pyruvate magnetic resonance spectroscopic images were acquired dynamically at 3 Tesla in 106 participants (NCT03685175).
Fatemeh Khashami, Ivan E. Dimitrov, Maximilian Fuetterer, Stefan Glöggler, Bei Zhang, Egzona Tan, Sebastian Kozerke, Anke Henning, Tarique Hussain, Craig R. Malloy, Nisha Unni, Vlad G. Zaha, CTOX Trial Investigator(s), Sheeba Cantanelli, Isaac Chan, Suzanne Cole, Suzanne Conzen, Glenda Delgado, Deborah Farr, Joshua Gruber, Barbara Haley, Dawn Klemow, Jenny Li, Heather McArthur, Alka Mallik, Poorni Manohar, Ina Patel, Namrata Peswani, Sangeetha Reddy, Navid Sadeghi, Samira Syed   +30 more
wiley   +1 more source

Beyond the Obvious: Evaluating Incidence and Causes of False Positive Patent Foramen Ovale Diagnoses in Cryptogenic Ischemic Stroke-A Retrospective Analysis. [PDF]

J Cardiovasc Dev Dis
Phinicarides R, Berning K, Heidari H, Kanschik D, Polzin A, Werner N, Kelm M, Jung C, Klein K, Zeus T, Afzal S.   +10 more
europepmc   +1 more source