Towards Better Generalization Using Synthetic Data: A Domain Adaptation Framework for T Mapping via Multiple Overlapping-Echo Acquisition.

The generation of synthetic data using physics-based modeling provides a solution to limited or lacking real-world training samples in deep learning methods for rapid quantitative magnetic resonance imaging (qMRI). However, synthetic data distribution differs from real-world data, especially under complex imaging conditions, resulting in gaps between domains and limited generalization performance in real scenarios. Recently, a single-shot qMRI method, multiple overlapping-echo detachment imaging (MOLED), was proposed, quantifying tissue transverse relaxation time (T) in the order of milliseconds with the help of a trained network.

Time matters in pandemic risk communication: A moderated effect of information timeliness on stakeholder perception in Singapore.

The outbreak of the COVID-19 pandemic shows the increasing importance of determining the factors of the public perceptions of personal and societal risks. These perceptions can shape people's behaviors, which, in turn, alter the spread of a pandemic on the community level. However, previous research on risk communication was inconsistent, and little is known about the impact of timely warning messages on stakeholders' perceptions of public health emergencies.

Preparation of anthracene-based tetraperimidine hexafluorophosphate and selective recognition of chromium(III) ions.

A novel anthracene-based tetraperimidine hexafluorophosphate was prepared, and its structure was determined through X-ray analysis, HRMS as well as H and C NMR spectroscopy. In the cationic moiety of , two (-ethylperimidinyl-CH)NCH- arms were attached to the 9- and 10-positions of anthracene. In addition, compound was used as a chemosensor to research the ability to recognize Cr through fluorescence and UV titrations, HRMS, as well as H NMR and IR spectroscopy.

NHC Pd(II) and Ag(I) Complexes: Synthesis, Structure, and Catalytic Activity in Three Types of C-C Coupling Reactions.

Four bis-benzimidazolium salts, 1,4-bis[1'-(-R-benzimidazoliumyl)methyl]-2,3,5,6-tetramethylbenzene 2X ( : R = ethyl, X = PF; : R = picolyl, X = Br; : R = benzyl, X = Br; and : R = allyl, X = Br), and their three -heterocyclic carbene (NHC) Pd(II) and Ag(I) complexes, (), (), and (), as well as one anionic complex (), have been synthesized and characterized. Complex adopts a funnel-like type of structure, complex adopts a cyclic structure, and complex is an open structure. In the crystal packing of -, one-dimensional polymeric chains and two-dimensional supramolecular layers are formed via intermolecular weak interactions, including hydrogen bonds, π-π interactions, and C-H···π contacts.