1.Preliminary study on EEG - encephalofluctuographic characteristics in excellent toxophily athletes.
Journal of Biomedical Engineering 2007;24(4):760-763
This research was conducted to explore the characteristics of encephalofluctuographs in 10 execellent toxophily athletes aged 17 to 28 years by comparison with those in 30 undergraduates as controls. The data were collected through EEG- Encephalofluctuograph technology(ET) under quiet and eye-closed conditions of the subjects. The results showed that the multiple indices of S-spectrum of ET possessed the following characteristics the toxophily athletes' frequency of S2, S3/S4, S5, S11 and S13 increased, while their frequency of S1, S6 and 57 decreased. The EEG - Encephalofluctuographic Characteristics were different; moreover, the left brain was in the ascendent notably. In terms of the intrinsic relation between S spectrums and neurotransmitter, it was noted that when compared with the controls, the toxophily athletes had better memories, stronger self-control and adaptability, and they could concentrate greater attention on an object.
Adaptation, Psychological
;
Adolescent
;
Adult
;
Athletic Performance
;
psychology
;
Burnout, Professional
;
diagnosis
;
psychology
;
Electroencephalography
;
psychology
;
Female
;
Humans
;
Male
;
Self Concept
;
Young Adult
2.Study on the Quantification of Traditional Chinese Medicine Tongue Color Classification Based on Hyperspectral Images
Dong ZHANG ; Wentai PANG ; Keyi WANG ; Fengwen YANG ; Junhua ZHANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(7):1925-1930
Objective Traditional Chinese medicine tongue diagnosis plays an important role in the clinical diagnosis and treatment of diseases,but the current research results are not applicable to the evaluation of clinical efficacy.This study conducted a hierarchical quantitative study on tongue color based on hyperspectral data of tongue images,making it suitable for clinical efficacy evaluation.Methods Establish inclusion and exclusion criteria,obtain tongue images of different spectral wavelengths within the visible light range of 400-1000 nm,and use traditional Chinese medicine clinical experts to distinguish between red tongue and yellow coating in four different color levels(mild,moderate,severe,and severe).Finally,establish a quantitative prediction model for the grade of red tongue and yellow coating based on machine learning models.Results There were significant differences in hyperspectral curve characteristics between red tongue and yellow coating with different color levels,which could be used as the basis for grade quantification.With the help of principal component analysis+random forest model,85.79%and 88.34%of the red tongue and yellow coating with different color levels could be predicted.Conclusion The use of hyperspectral image data features and machine learning models for predicting different color levels of tongue color has achieved good accuracy.
3.Characterization of the prevalence of HIV-infected patients aged 50 years and above in Tiantai County, Zhejiang Province from 2006 to 2020
Junhua GE ; Haiyan HU ; Tianlan PANG ; Shanling WANG ; Guiwei ZHU
Shanghai Journal of Preventive Medicine 2024;36(10):939-943
ObjectiveTo analyze the epidemiological characteristics of the newly reported HIV-infected cases aged ≥50 years in Tiantai County from 2006 to 2020, and to provide a scientific basis for the formulation of intervention measures and control strategies for the elderly. MethodsData of the newly reported HIV-infected individuals aged ≥50 years in Tiantai County from 2006 to 2020 were analyzed. A trend χ2 test was used to analyze the changing trends of the composition ratio over the years. ResultsA total of 201 HIV-infected cases aged ≥50 years were newly reported from 2006 to 2020, accounting for 52.62% of the total reported cases, and the proportion of HIV- infected patients aged ≥50 years in the total number of reported cases increased from 12.50% in 2011 to 80.00% in 2020, showing a yearly increasing trend (χ2trend=36.898, P<0.001). The mean age of the elderly at diagnosis of HIV infection was (64.8±9.1) years old, and the average age of infection was (58.1±9.3) years old. Patients who were male (79.10%), married with a spouse (58.21%), with an educational level of primary school and below (68.16%), with a local registered residence (75.12%) and peasants (88.06%) were associated with increased risk of HIV infection. Heterosexual transmission (89.55%) was the major route of HIV transmission among the HIV-infected cases aged ≥50 years and 75.12% of them were detected while visited medical and healthcare facilities. Among heterosexual transmission, males were more likely to be infected through non-marital heterosexual contact(χ2=229.381, P<0.001), while females were more likely to be infected through contact with their positive spouse or fixed sexual partner(χ2=216.699, P<0.001). The AIDS epidemic had affected 15 townships (streets) in the county. Pingqiao Town and Chicheng Street were seriously affected, with the confirmed cases accounted for 45.27% of the total number of the cases in the county. ConclusionThe number of the newly reported HIV-infected cases aged ≥50 years in Tiantai County showed a rapid growth trend from 2006 to 2020. Males with low educational level predominated in the total number of the cases. Commercial heterosexual behavior is the main route of infection. Lack of timely detection and management on positive clandestine prostitutes, resulting in the existence of gathering trend in the key towns. Crackdown on clandestine prostitution should be strengthened, and interventions on high-risk sexual behaviors should be carried out, in order to promote the acquisition of HIV/AIDS prevention knowledge and behavioral change for the elderly, furthermore, to control the spread and epidemic of HIV/AIDS.
4.Epidemiological study on hookworm infection in rural population in Tiantai County, Zhejiang Province in 2022
Junhua GE ; Jiang CHU ; Guiwei ZHU ; Binbin DING ; Caixia PANG ; Saifei LUO ; Tianlan PANG ; Wei RUAN
Shanghai Journal of Preventive Medicine 2024;36(4):364-367
ObjectiveTo understand the prevalence of hookworm infection and its relevant behavioral factors in rural areas of Tiantai County, Zhejiang Province, and to provide scientific evidence for prevention and control of hookworm disease. MethodsBy using a stratified cluster random sampling strategy, local residents aged ≥3 years was divided into 5 districts according to geographical location; furthermore, those in one administrative village (surveillance site) were investigated in each district. Species of hookworm were identified by filter paper culture in vitro, and enterobius vermicularis eggs were detected by cellophane anal swab in children aged 3‒9 year. Risk factors were determined by questionnaire. ResultsA total of 1 013 residents were investigated in 5 surveillance sites. Thirty nine cases with hookworm infection were detected, with the total infection rate of 3.85% . All species detected were determined to be Necator americanus. The infection rate significantly differed across the towns (χ2=48.32, P<0.05), with the highest rate in Nanping Town (10.95%) . It significantly differed by age groups (χ2=65.65, P<0.05), with the highest rate in those aged >70 years (9.75%). Furthermore, it decreased with educational background. It was significantly associated with fertilize with fresh manure (χ2=6.87, P<0.05) and barefoot labor (χ2=157.69, P<0.05). ConclusionThe overall infection rate of hookworm in Tiantai County remains low. Dominant species of hookworm is hookworm Necator americanus. It is necessary to strengthen the advocacy of hookworm prevention and control knowledge, improve hygiene in work and life style, and increase self-protection awareness.