Earth's field NMR relaxation of pre-polarised water protons for real-time detection of free-radical formation.

Real-time imaging of free-radical formation is important in physical chemistry, biochemistry, and radiobiology, especially for the study of radiation dose-rate effects. Herein, we show for the first time that the formation of free radicals during the time course of a chemical reaction can be imaged through NMR relaxation measurements of water protons in the Earth's magnetic field, in an open-coil spectrometer. The relaxation rate constants of water magnetisation are enhanced as reactions leading to the formation of hydroxyl radicals and oxygen proceed on the timescale of tens of minutes.

Multiple Stroboscopic Detection of Long-Lived Nuclear Magnetization for Glutathione Oxidation Kinetics.

Imaging the molecular kinetics of antioxidants by magnetic resonance can contribute to the mechanistic understanding of therapeutic approaches. Magnetic resonance detection of the response to flashes of oxidative stress requires sequential spectroscopy on the same time scale on which reactive oxygen species are generated. To this effect, we propose a single-polarization multiple-detection stroboscopic experiment.

Can green finance reduce carbon emission intensity? Mechanism and threshold effect.

Against the background of carbon emission reduction, green finance (GF) has become a crucial financial instrument that promotes industrial transformation and low-carbon development. Although some scholars have explored the driving factors affecting the carbon emission intensity (CEI), there is a dearth of literature on the mediation and threshold effects of GF on CEI. Based on the panel data of 30 provinces in China during the period of 2004~2019, this study examined the direct, indirect, and threshold effects of GF on CEI by adopting the panel ordinary least squares, mediation effect, and threshold regression models, respectively.

Decoupling relationship between carbon emission and economic development in the service sector: case of 30 provinces in China.

The decoupling relationship between carbon emissions and the economic development in the service sector is conducive to promoting sustainable development. Taking 30 provinces of China as case studies, this study not only examined the decoupling relationship between carbon emissions and economic development in the service sector by adopting Tapio decoupling elasticity model but it also explored the driving factors affecting the changes of carbon emissions of the service sector at different stages by using the Logarithmic Mean Divisia Index. The main results are as follows.

The Community Adaptability to Changes in Rural Romania and the COVID-19 Impact.

Romanian rural villages are struggling to survive present times when youngsters leave for a better life in the city while elders work the land like a hundred years ago. Our paper integrates human environments research with public health preparedness, presenting the (Gypsy/Roma) ethnic group from rural Romania as an example to the world. The future security of mankind will require a new understanding of the human place in its environment.

Geosystems' Pathways to the Future of Sustainability.

The world's future development depends on effective human-computer linkages. From local to global, the virtual illustrations of a geographical place have to emphasize in an integrative approach peoples' key position in the Geosystem. Human values and social networks are now empowered by the unlimited creativity of smartphone applications.

Residents' Diachronic Perception of the Impacts of Ecological Resettlement in a World Heritage Site.

As one of the main factors in any tourist destination, residents' perception of the impacts of ecological resettlement has a substantial influence on the sustainable development of any world heritage site. Our research takes the residents of three different resettlement locations in the Wulingyuan scenic area, a world heritage site, as the object of our survey. Based on questionnaire investigations in 2010 and 2016, this article analyzes the residents' diachronic perception of the impacts of ecological resettlement.

Improved Halbach sensor for NMR scanning of drill cores.

A lightweight Halbach magnet system for use in nuclear magnetic resonance (NMR) studies on drill cores was designed and built. It features an improved homogeneous magnetic field with a strength of 0.22 T and a maximum accessible sensitive volume.