Zhi-xin Yang

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Heavy metal (HM) is a major hazard to the soil-plant system. This study investigated the combined effects of cadium (Cd), zinc (Zn) and lead (Pb) on activities of four enzymes in soil, including calatase, urease, invertase and alkalin phosphatase. HM content in tops of canola and four enzymes activities in soil were analyzed at two months after the metal(More)
The AdaBoost algorithm is a popular ensemble method that combines several weak learners to boost generalization performance. However, conventional AdaBoost.RT algorithms suffer from the limitation that the threshold value must be manually specified rather than chosen through a self-adaptive mechanism, which cannot guarantee a result in an optimal model for(More)
OBJECTIVE To evaluate the therapeutic effect and possible adverse effects of Xingnao Kaiqiao needling method in treatment of stroke. METHODS Adopt Cochrane system assessment methods. RESULTS Altogether 25 studies and 4 377 cases of stroke were enrolled. Xingnao Kaiqiao needling method had the tendency to decrease the fatality and the disablement rate,(More)
OBJECTIVE To systematically evaluate the long-term effect and safety of Xingnao Kaiqiao needling method in ischemic stroke treatment. DATA RETRIEVAL We retrieved relevant random and semi-random controlled trials that used the Xingnao Kaiqiao needling method to treat ischemic stroke compared with various control treatments such as conventional drugs or(More)
A total of 79 topsoil samples (ranging from 0 to 20 cm in depth) were collected from a grape cultivation area of Zhangjiakou City, China. The total concentrations of As, Cd, Hg, Cr, Cu, Mn, Ni, Pb, and Zn in soil samples were determined to evaluate pollution levels and associated health risks in each sample. Pollution levels were calculated using enrichment(More)
According to the law of circulation of meridians and the locations of acupoints, the opposite acupoints were proposed. It facilitates comprehension of the routes of meridians and the locations of acupoints. Application of opposite needling or penetrative needling, it is easy to practice and the effectiveness is significant. Promoting this concept into(More)
A new combination of acupoints with opposite locations in clinic was proposed according to the running course of meridians and the relation between meridians and acupoints in order to enrich the theory of acupuncture-moxibustion and enhance the therapeutic effect. Points with opposite location refers to bigeminal acupoints locates at the medial and lateral(More)
The present study used strain ZH-H2 (Fusarium sp.) isolated by our group as the PAH-degrading strain and 5-6-rings PAHs as degradation objects. The soil incubation experiment was carried out to investigate the starch-enhanced degradation effects of HMW PAHs by Fusarium sp. in an Aged Polluted Soil from a Coal Mining Area. The results showed that the removal(More)
OBJECTIVE To probe into long-term therapeutic effect and safety of Xingnao Kaiqiao acupuncture for treatment of cerebral infarction in restoration stage. METHODS Two hundred and thirty-four cases of cerebral infarction in restoration stage were randomly assigned to a Xingnao group and a routine group. The Xingnao group (n=116) were treated by Xingnao(More)