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23 results on '"Liang, Yong-Qi"'

4. Additional file 2 of The independent and joint association of accelerometer-measured physical activity and sedentary time with dementia: a cohort study in the UK Biobank

Author

Zhong, Qi, Zhou, Rui, Huang, Yi-Ning, Chen, Hao-Wen, Liu, Hua-Min, Huang, Zhiwei, Yuan, Zelin, Wu, Keyi, Cao, Bi-Fei, Liu, Kuan, Fan, Wei-Dong, Liang, Yong-Qi, and Wu, Xian-Bo

Abstract

Additional file 2. STROBE Statement—Checklist of items that should be included in reports of cohort studies.

Published
2023
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6. Additional file 9 of The independent and joint association of accelerometer-measured physical activity and sedentary time with dementia: a cohort study in the UK Biobank

Author

Zhong, Qi, Zhou, Rui, Huang, Yi-Ning, Chen, Hao-Wen, Liu, Hua-Min, Huang, Zhiwei, Yuan, Zelin, Wu, Keyi, Cao, Bi-Fei, Liu, Kuan, Fan, Wei-Dong, Liang, Yong-Qi, and Wu, Xian-Bo

Abstract

Additional file 9. Association of TPA and sedentary time with the incident dementia risk (multiple imputation).

Published
2023
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8. Additional file 8 of The independent and joint association of accelerometer-measured physical activity and sedentary time with dementia: a cohort study in the UK Biobank

Author

Zhong, Qi, Zhou, Rui, Huang, Yi-Ning, Chen, Hao-Wen, Liu, Hua-Min, Huang, Zhiwei, Yuan, Zelin, Wu, Keyi, Cao, Bi-Fei, Liu, Kuan, Fan, Wei-Dong, Liang, Yong-Qi, and Wu, Xian-Bo

Abstract

Additional file 8. Association of TPA and sedentary time with dementia after additional adjustment for APOE ε4.

Published
2023
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11. Additional file 3 of The independent and joint association of accelerometer-measured physical activity and sedentary time with dementia: a cohort study in the UK Biobank

Author

Zhong, Qi, Zhou, Rui, Huang, Yi-Ning, Chen, Hao-Wen, Liu, Hua-Min, Huang, Zhiwei, Yuan, Zelin, Wu, Keyi, Cao, Bi-Fei, Liu, Kuan, Fan, Wei-Dong, Liang, Yong-Qi, and Wu, Xian-Bo

Abstract

Additional file 3. Methods supplement for the measurement of total volume of physical activity.

Published
2023
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12. Additional file 7 of The independent and joint association of accelerometer-measured physical activity and sedentary time with dementia: a cohort study in the UK Biobank

Author

Zhong, Qi, Zhou, Rui, Huang, Yi-Ning, Chen, Hao-Wen, Liu, Hua-Min, Huang, Zhiwei, Yuan, Zelin, Wu, Keyi, Cao, Bi-Fei, Liu, Kuan, Fan, Wei-Dong, Liang, Yong-Qi, and Wu, Xian-Bo

Abstract

Additional file 7. Association of TPA and sedentary time with dementia excluding dementia onset within 2 years (n = 47).

Published
2023
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21. In Situ Studies of Photoluminescence Quenching and Photocurrent Yield in Quantum Dot Sensitized Single Crystal TiO2and ZnO Electrodes

Author

Shepherd, Douglas P., Sambur, Justin B., Liang, Yong-Qi, Parkinson, Bruce A., and Van Orden, Alan

Abstract

Utilizing time-correlated single photon counting and photocurrent spectroscopy we have studied the fluorescence intensity, fluorescence decay time, and sensitized photocurrents of a liquid junction photoelectrochemical cell consisting of CdSe quantum dots coupled to glass, single crystal TiO2, and single crystal ZnO substrates through a variety of capping ligands. This system is ideal to compare electron transfer rates obtained from optical techniques with external current flow obtained from electrical techniques. We find that for all configurations of capping ligands and substrate the photoluminescence decay rate is quenched compared to free quantum dots in solution; whereas only the quantum dots capped with short chain 3-mercaptopropionic acid ligands coupled to the single crystal TiO2or ZnO produce photocurrents. The longer chain capping groups, oleic acid/tri-n-octylphosphine and 11-mercaptoundecanoic acid, inhibit electron injection and can promote clustering or aggregation of the quantum dots on the substrate surface as observed by atomic force microscope imaging. These findings illustrate the crucial role of capping ligands on the electron transfer properties and morphology of quantum dot interfaces. A key finding of this research is the fact that optical measurements alone may be insufficient to infer electron injection in a quantum dot sensitized photoelectrode system, and a combination of optical and photocurrent measurements are needed to fully characterize the photoresponse of such systems.

Published
2012
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23. [Study on chemical constituents of the bulbs of Lycoris longituba].

Author

Zhao YY, Liang YQ, Chen Y, Sun H, Wang M, and Feng X

Subjects
Amaryllidaceae Alkaloids chemistry, China, Heterocyclic Compounds, 4 or More Rings chemistry, Heterocyclic Compounds, 4 or More Rings isolation & purification, Magnetic Resonance Spectroscopy, Molecular Structure, Phenanthridines chemistry, Plant Roots chemistry, Amaryllidaceae Alkaloids isolation & purification, Lycoris chemistry, Phenanthridines isolation & purification
Abstract

Objective: To study the chemical constituents of the Bulbs of Lycoris longituba., Methods: The chemical constituents were isolated and purified by means of chromatographic techniques and their structures were elucidated by spectroscopic methods., Results: Six compounds were isolated and identified as Crinine (1), Narciclasine (2), Squamigine (3), 11-Hydroxyvittatine (4), Pancracine (5), Lycorine (6)., Conclusion: Compounds 1 - 6 are isolated from this plant for the first time.

Published
2011

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