Publications by authors named "Dong You Zhang"
Article Synopsis
- The study aimed to assess soil heavy metal content, specifically arsenic (As), in the Changqing district using 304 soil samples and remote sensing data to inform environmental protection policies.
- Results revealed that arsenic levels exceeded the background value but did not pose significant health risks, indicating only slight pollution, with spatial features proving to be the most accurate for predictions.
- The random forest model utilizing a combination of temporal, spatial, and spectral features achieved the highest accuracy in predicting arsenic levels, which showed a decreasing trend from northwest to southeast due to environmental factors.
[Responses of radial growth of var. and to climate change].
Ying Yong Sheng Tai Xue Bao
October 2021
Article Synopsis
- The study investigates how global warming affects tree growth in the Greater Khingan Mountains, focusing on two tree varieties and their responses to changing climate conditions.
- It finds that temperature and precipitation significantly influence the radial growth of both species, with one species being more sensitive and stable to temperature variations than the other.
- After 1990, the effects of climate change shifted, revealing that high temperatures and specific precipitation patterns increasingly inhibit the growth of one species while promoting growth in the other, highlighting the importance of these findings for forest ecosystem management.
Coronary artery calcification and risk of mortality and adverse outcomes in patients with COVID-19: a Chinese multicenter retrospective cohort study.
Chin J Acad Radiol
June 2021
Background: Coronary artery calcification (CAC) is an independent risk factor of major adverse cardiovascular events; however, the impact of CAC on in-hospital death and adverse clinical outcomes in patients with coronavirus disease 2019 (COVID-19) remains unclear.
Objective: To explore the association between CAC and in-hospital mortality and adverse events in patients with COVID-19.
Methods: This multicenter retrospective cohort study enrolled 2067 laboratory-confirmed COVID-19 patients with definitive clinical outcomes (death or discharge) admitted from 22 tertiary hospitals in China between January 3, 2020 and April 2, 2020.
How to evaluate the value of chest CT in COVID-19: case reports and literature review.
Chin J Acad Radiol
September 2020
The coronavirus disease 2019 (COVID-19) that occurred in Wuhan, Hubei Province, China, has been declared a public health emergency of international concern and a pandemic by the World Health Organization. The Chinese government has temporarily taken strong response measures and effective procedures to stop the further expansion and development of the epidemic. It is important for clinicians to screen, diagnose, and monitor COVID-19.
View Article and Find Full Text PDFThe present study aimed to evaluate the value of serum amyloid A (SAA) in coronavirus disease 2019 (COVID-19) and compared the efficacy of SAA and C-reactive protein (CRP) in predicting the severity and recovery of COVID-19. A retrospective study was conducted on COVID-19 patients hospitalized in Wuhan No. 1 Hospital (Hubei, China) from January 21, 2020 to March 4, 2020.
View Article and Find Full Text PDFElectroacupuncture stimulates remodeling of extracellular matrix by inhibiting apoptosis in a rabbit model of disc degeneration.
Evid Based Complement Alternat Med
March 2015
The present study was designed to determine whether EA stimulates remodeling of extracellular matrix by inhibiting apoptosis in degenerated disc. 40 rabbits were randomly assigned to one of the four groups. Animal model was established by a loading device.
View Article and Find Full Text PDFThe effect of electroacupuncture on the extracellular matrix synthesis and degradation in a rabbit model of disc degeneration.
Evid Based Complement Alternat Med
July 2014
The present study was aimed at determining if the electroacupuncture (EA) is able to protect degenerated disc in vivo. New Zealand white rabbits (n = 40) were used for the study. The rabbits were randomly assigned to four groups.
View Article and Find Full Text PDFObjective: To introduce the experiences of applying MR to diagnose the imaging characters in chronic injury of the elbows in athletes.
Methods: From September 2005 to May 2008, 40 elbows of 34 athletes, included 21 males and 13 females,aged from 6 to 16 years old, averaged (12.3 +/- 3.