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Objective To systematically evaluate the efficacy and safety of extracorporeal shock wave (ESWT) in the treatment of knee osteoarthritis(KOA). Methods From the establishment of the database to July 2020, the clinical randomized controlled trials related to ESWT in the treatment of KOA which were searched by computer from CNKI, WanFang, WangFang Medical Network, VIP, Zhangqiao Research, Doctor Search, CBM, Chinese Medical Journal Full Text Database. According to inclusion and exclusion criteria, the literature were screened with 2 researchers, the data and the quality of the included literature were extracted and evaluated. The documents which meeting the inclusion criteria were analyzed by Revman version 5. 3 statistical software. Results A total of 16 articles were included in the study, with a total of 1 259 patients. Meta-analysis results suggest that after ESWT treatment of KOA, the test group patients' visual analogue scoring method score [mean difference (MD) = 1.76, 95% confidence interval (95%CI) (0. 92,2. 61), P <0. 000 01], osteoarthritis index score [ MD=4. 63,95 %CI (-1. 05,10. 31),P =0.11], Lequesne osteoarthritis se-verity index [MD =1. 27,95%CI (0.86, 1.68), P<0. 000 01], Lysholm score [MD= —9. 48, 95 %CI ( —14. 69, —4. 26), P =0.000 4], clinical total effective rate [relative risk was 0. 85, 95 %CI (0. 76,0. 96),P = 0. 006] were better than those of the control group. Conclusion Evidence at this stage shows that ESWT has a certain positive effect on relieving pain and improving joint range of motion in the treatment of KOA patients, and it has a reliable effect and is worthy of clinical recommendation. [ABSTRACT FROM AUTHOR]

The professional core quality of primary school teachers refers to the necessary character, know ledge and ability to meet the needs of their professional development and students ' growth. The investigation of 2564 primary school teachers in Jiangxi Province finds that their professional core quality is generally at a good level, but there are also shortcomings in all dimensions; and that the professional core quality of primary school teachers has significant difference in age, teaching age, professional title, teaching school, but there is no significant difference in gender, educational background, the courses and grades they teach. The factors that affect the professional core quality of primary school teachers include teaching-andresearch activities, teacher training, book-and-periodical reading, teaching reference, teaching research and teaching pressure. In order to effectively improve the professional core quality of primary school teachers, the administrative departments and schools should take corresponding measures to improve their knowledge quality, promote the growth of all kinds of teachers, enrich the forms of teaching-and-research activities, improve teacher training, promote teaching-based exchanges among teachers, and pay attention to teachers ' physical and mental health. [ABSTRACT FROM AUTHOR]

Copyright of Journal on Communication / Tongxin Xuebao is the property of Journal on Communications Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Modern Medicine & Health is the property of Journal of Modern Medicine & Health and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Medical Equipment Journal is the property of Chinese Medical Equipment Journal Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Central China Normal University is the property of Huazhong Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Hydrobiology is the property of Editorial Department of Journal of Hydrobiology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Evaluation & Analysis of Drug-Use in Hospitals of China is the property of Evaluation & Analysis of Drug-Use in Hospitals of China Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

目的观察功能性电刺激对脑卒中后患者足下垂、足内翻的影响。方法选择 2018 年 1 月至 2019 院住院的脑卒中后 45 例足下垂患者作为研究对象,将其分为对照组22例,试验组 23 例。对照组按照常规康复方法 验组在对照组治疗基础上联合功能性也刺激,经同一治疗师评定其功能性评定 (FIM)、Barthel指数和足背屈角度。 组患者的临床疗效。结果两组患者关节主动背屈角度、FIM、Barthel 指数比较,差异均无统计学意义(P<0.05) 难倒主动背屈角度、FIM 、Barthel 指教比较,差异均有统计学意义 (P<0.05), 且试验组改善程度优于对照组,差 意义 (P<0.05)。脑卒中患者使用功能性也刺激后,有效率达 78.26%, 足下垂及足內翻的运动功能有效改善,差异有 (P<0.05)。结论脑卒中悲者使用功能电刺激后,能有效改善患者足下垂及足內翻的运动功能. [ABSTRACT FROM AUTHOR]

Copyright of Engineering Science Research & Application is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Hydrobiology is the property of Editorial Department of Journal of Hydrobiology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Hydrobiology is the property of Editorial Department of Journal of Hydrobiology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Rare Metal Materials & Engineering is the property of Northwest Institute for Nonferrous Metal Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The exist methodd of tag recommendation ignore the connection among the characteristics of a variety of attributes and cannot guarantee the accuracy of the recommender system in the big data environment. Aiming at this problem, this paper proposed a tag recommendation method based on user clustering and tensor decomposition, which could further improve the quality of tag recommendation. The method firstly clustered the users who had an important influence on the product, and then comprehensively calculated the total weight based on the multiple relationships among the users, products, tags, and product ratings. Finally, it constructed the tensor according to the user groups after clustering and the total weight of the multivariate relations, and performed the tensor factorization. Experiment compared with the traditional tensor decomposition method, and the results show that proposed method improves the accuracy and verifies the effectiveness of the algorithm. [ABSTRACT FROM AUTHOR]

Objective: To investigate the effect of MitoQ on high glucose-induced mitochondrial function in cardiomyocytes.Methods: The neonatal rat cardiac myocytes of SD rats were routinely obtained and purified and were divided into control group, high sugar group and experimental group. The control group were cultured with 10% serum DMEM medium(5.5 mmol/L glucose); the high sugar group were cultured with high glucose DMEM medium containing serum(33 mmol/L glucose); the experimental group were treated with high glucose DMEM medium containing serum(33 mmol/L glucose) and MitoQ. The chlorine ion fluorescence probe were used to detect the concentration of intracellular chlorine ion, the rate of apoptosis were detected by flow cytometry, the content of active oxygen(ROS) was detected by superoxide anion fluorescence staining, detection of ATP levels in cardiomyocytes using the ATP detection kit, and caspase-3 protein levels were detected by Western blot. Level. Results: The relative concentration of chloride in the control group, the high sugar group and the experimental group were(2.14±0.44)%,(23.11±4.39)% and(5.20±0.92)% respectively. Compared with the control group, the cardiomyocytes in the high glucose group increased the apoptosis and increased the ROS production, the ATP levels of cardiomyocytes in the control group and the experimental group were significantly higher than those in the high glucose group(P<0.05), and the caspase-3 protein level in the cardiomyocytes increased significantly(P<0.05). Compared with the high glucose group,the experimental group was apoptotic. Decreased, ROS production decreased, and caspase-3 protein levels in cardiomyocytes were significantly decreased(P<0.05). Conclusion: High glucose can cause the mitochondrial disorder and apoptosis of myocardial cells. MitoQ can improve the mitochondrial function of myocardial cell via reducing the intracellular ROS and caspase-3 levels, inhibit the apoptosis of cardiomyocytes. [ABSTRACT FROM AUTHOR]

Objective To compare the cell content, components, activity of nano-fat and SVF. Methods Abdominal lipoaspirates were obtained from 12 healthy women with no systemic diseases, and were prepared into 12 nano-fat and SVF suspension. The cells of two group were examined for surface marker expression and counted for cell numbers, then cultured in vitro. Cultured cells were examined for surface marker expression and histology on the sixth and thirteenth days. Results The results of 12 nano-fat and SVF suspension: mean cell number was (1.85±0.73)×106/ml and (5.57±2.63)×106/ml respectively(P<0.05); Mean cell number of adipose-derived stromal cells(CD34+/CD31-/CD45-)was(1.92±0.57)×105/ml and(3.07±0.87)×105/ml respectively(P<0.05); Mean cell number of endothelial cells(CD34+/CD31+/CD45-)was (5.09±1.06)×105/ml and (0.19±0.06)×105/ml respectively(P<0.05);On the sixth days after culture, mean cell number of adipose-derived stromal cells(CD73+/CD90+/CD31-/CD45-) was(4.23±1.63)×105/ml and(5.11± 1.33)×105/ml respectively(P>0.05); On the thirteenth days, mean cell number was(7.48±1.57)×105/ml and(4.67±0.87)×105/ml respectively(P<0.05), and oil red o stain show that lipid aggregate in cells in two groups on the same day. Conclusion The study finds that nano-fat suspension have fewer cell content and adipose-derived stromal cells than SVF suspension, but have more endothelial cells. The adipose-derived stromal cells of two group both can proliferation and adipogenesis in vitro. This study can provide reference for clinical application of nano-fat in Cell-Assisted Lipotransfer. [ABSTRACT FROM AUTHOR]

Copyright of Rare Metal Materials & Engineering is the property of Northwest Institute for Nonferrous Metal Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To evaluate the clinical efficacy and safety of percutaneous coronary intervention in the treatment of elderly patients with coronary heart disease. Methods: 265 cases of elderly patients with coronary heart disease admitted in our hospital from January 2014 to January 2017 were selected as the subjects. According to the order of treatment, all patients were divided into the control group(132 cases) and the study group(133 cases). Patients in the control group underwent percutaneous coronary intervention with the femoral artery approach(TFI) and patients in the study group underwent percutaneous coronary intervention with the radial artery approach(TRI). The operation, changes of cardiac function indexes before and after surgery, incidence of cardiovascular adverse events and complications were compared between the two groups. Results: There was no significant difference in the success rate of surgery, the number of stent, contrast agent dosage between the two groups(P>0.05). However, the time of arterial puncture, the insertion time of the catheter and the time of X-ray exposure in the study group were all longer than those in the control group, and the bed time and the time of hospitalization were significantly shorter than those in the control group(P<0.05). After treatment, the left ventricular ejection fraction(LVEF), the left ventricular end systolic diameter(LVESD) and the left ventricular end diastolic diameter(LVEDD) were significantly improved than those before the treatment, which were better in the study group than those of the control group(P<0.05), the incidence of adverse cardiovascular events and complications in the study group were significantly lower than those in the control group(P<0.05).Conclusion: TRI and TFI were quite effective in the treatment of elderly patients with coronary heart disease by percutaneous coronary intervention, and TRI was better and safer in improving cardiac function and reducing cardiovascular adverse events. It could be used as the first choice for the treatment of PCI in elderly patients with coronary heart disease. [ABSTRACT FROM AUTHOR]

Copyright of China Mechanical Engineering is the property of Editorial Board of China Mechanical Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To analyze the relationship between single nucleotide polymorphisms (SNP) of Notch1 gene rs3124599 and susceptibility to lung cancer in patients with primary lung cancer. Methods A total of 78 patients with primary lung cancer (observation group) and 156 healthy subjects (control group) were enrolled. The morning venous blood of the two groups were taken (2 m L). DNA was extracted by phenol-chloroform extraction and Notch1 gene rs3124599 locus typing was analyzed by PCR-PFLPS technique. The clinical data of the two groups were collected. The correlation between various factors and susceptibility to lung cancer was evaluated by conditional logistic regression analysis. The interaction coefficient (γ) was used to evaluate the interaction between environmental factors and gene polymorphism. Results The distribution frequencies of Notch1 gene rs3124599 genotypes AA,AG,GG in the observation group were 25.6% (20/78),39.7% (31/78),and 34.6% (27/78),which were 37.2% (58/156),44.9% (70/156),and 17.9% (28/156) in the control group; the distribution frequencies of alleles A and G in the observation group were 45.5% (71/156)and 54.5% (85/156),respectively,which were 59.6% (186/312) and 40.4% (126/312) in the control group. The differences of the distribution of genotypes and alleles A and G between the two groups were statistically significant (χ2=6.518,3.987; all P < 0.05). The number of smoking,degree of smoking,and the family history of cancer in the observation group were higher than those in the control group (χ2= 23.890,5.647; P < 0.05). Conditional logistic regression analysis showed that individuals with rs3124599 GG genotype had an increased risk of lung cancer as compared with individuals with rs3124599 AA genotype (corrected OR = 1.596,95% CI: 1.058-2.429). The individuals carrying alleles G gene were 1.193 times more likely to develop lung cancer than those carrying A gene (95% CI: 1.132 to 2.501,P <0.05). The rs3124599 locus AG or GG genotype had positive interaction with smoking (γ = 2.296) and drinking (γ =1.130). When the rs3124599 locus AG/GG genotype was associated with a family history of the tumor,the risk of developing lung cancer increased (OR = 3.751,95% CI = 1.665-18. 034). Compared with rs3124599 genotype AA non-smokers,the risk of lung cancer in smokers or smokers carrying AG/GG increased by 4.495 times and 12.134 times,respectively. Conclusion The mutation frequency of allele G in Notch1 gene rs3124599 is higher in lung cancer patients. The allele G of the Notch1 gene rs3124599 (A/G) may be a risk factor for lung cancer,and it has an interaction with the patient’s family history of cancer and smoking history. [ABSTRACT FROM AUTHOR]

Objective To observe and study the changes of hemodynamic and respiratory mechanical parameters of patients with respiratory failure. Methods 75 patients with respiratory failure in our hospital during the time of March 2016 to May 2017 were set as the observation group, while 75 healthy persons with the same age were set as the control group. Then the hemodynamic indexes and respiratory mechanical parameters of the two groups were detected, and the detection results of observation group with different severity degree of disease were compared, and the relationship between the hemodynamic indexes, respiratory mechanical parameters and respiratory failure were analyzed with Logistic analysis. Results The hemodynamic indexes and respiratory mechanical parameters of observation group were all worse than those of the control group(P<0.05), the hemodynamic indexes and respiratory mechanical parameters of observation group with servere disease were all worse than those of patients with mild and moderate disease, the results of patients with moderate disease were worse than those of patients with mild disease(P<0.05), and the Logistic analysis showed the hemodynamicindexes and respiratory mechanical parameters all had close relationship to the respiratory failure. Conclusions The change of hemodynamic and respiratory mechanical parameters of patients with respiratory failure are greater, and the detection results of patients with different severity degree of disease have significant differences，so those items of patients with respiratory failure should be monitored and improved. [ABSTRACT FROM AUTHOR]

Copyright of China Petroleum Machinery is the property of China Petroleum Machinery Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To compare the effect of microvascular decompression (MVD) versus percutaneous balloon compression (PBC) for recurrent trigeminal neuralgia after MVD. Methods The clinical data of 92 patients o with recurrent trigeminal neuralgia after MVD, in whom 25 were treated by MVD (MVD group) ,and 67 by PBC (PBC group) from January 2009 to January 2016, were analyzed retrospectively. The therapeutic efficacy, operation time, inpatient time and complications were compared between two groups. Results There were no significant differences in overall effective rate between two groups (96.0% vs. 94.0% , P>0.05). However,the curative rate in MVD group was higher than that in PBC group (88. 0% vs. 64. 2% , P<0.05). The recurrence rate was higher in PBC group than in MVD group (27.0% vs. 4. 2% , P <0. 05). The operation time and hospital stay in MVD group was longer than that in PBC group [ ( 102.0 ±28. 2)min vs. (20.9 ± 10. 6) min, (11.7 ± 3. 5 ) d vs. (4. 3 ± 1. 8 ) d, all P < 0. 05 ). The incidence of trigeminal depressor response and facial numbness was significantly greater in PBC group than MVD group (26.9% vs. 4. 0% ,92. 5% vs. 16. 0% , all P <0. 05). There was no significant differences ol herpetic stomatitis in both groups (32. 0 % vs. 40. 3% ,P > 0. 05 ). 37 patients had masseter weakness in PBC group. One patient had surgical incision infection and one patient had tinnitus in MVD group. Conclusions MVD and PBC both are effective in treatment of recurrent trigeminal neuralgia after MVD. The MVD is higher cure rate,lower pain recurrence rate and lower incidence of trigeminal depressor response, facial numbness and masseter weakness. The PBC has the higher security, minimal injury, shorter operation time and inpatient time. [ABSTRACT FROM AUTHOR]

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To investigate the influence of shuxuening injection combined with budesonide on the serum levels of matrix metalloproteinases-9（MMP-9） and interleukin-6（IL-6）, interleukin-8（IL-8）, tumor necrosis factor-α（TNF-α） and lung function of chronic obstructive pulmonary disease（COPD） patients with acute aggravating period. Methods: 112 cases of COPD patients with acute aggravating period were divided into the control group and the observation group with 56 cases in each group. The control group was treated by budesonide, while the observation group was treated based on the control group combined with Shuxuening injection. The total effective rate, serum levels of MMP-9, IL-6, IL-8, TNF-α, propylene glycol（MDA）, superoxide disproportionation alcohol（SOD）, CO2 partial pressure（PaCO2）, blood oxygen partial pressure（PaO2）, peak velocity of flow（PEF）, maximum mid expiratory gas flow velocity（MMEF）, forced vital capacity（FVC）, CD3+, CD4+, CD8+, CD4+/CD8+, and the occurrence of adverse reactions before and after the treatment were compared between two groups. Results: The total effective rate of observation group was higher than that of the control group（94.64% vs 80.35 %, P<0.05）. After the treatment, the serum levels of MMP-9, IL-6, IL-8, TNF-α, MDA, Pa CO2, CD8+of observation group were lower than those of the control group（P<0.05）. The serum levelof SOD, PaO2, PEF, MMEF, FVC, CD3+, CD4+,CD4+/CD8+of observation group were higher than those of the control group（P<0.05）. The occurrence of adverse reactions showed no difference between the two groups（P>0.05）. Conclusion: Shuxuening injection combined with budesonide was effective in the treatment of COPD patients with acute aggravating period, which could decrease the serum levels of MMP-9, IL-6, IL-8 and TNF-α, improve the lung function, reduce the oxidative stress and improve the arterial blood gas and immune function. [ABSTRACT FROM AUTHOR]

On the condition of constant infiltration strength , how to acquire the level of groundwater and the watershed position between two parallel ditches are worth studying. Previous scholars issued the theoretical formulas of water table curve and watershed position between two parallel ditches. However, the practice of formulas still need verifying. As a result, we built a model which could imitate the watershed movement indoor according to the similar principle. On the precondition of stable recharge, we kept one side water level constant and changed the other side level. By observing the path of groundwater after adding to tracer, we noted the level of piezometer tube, drew the form of watershed, and compared the watershed characteristic in the different water level. Meanwhile, we obtained a group of academic data by the formulas of water table curve and watershed position and compared with test data. The result showed we could acquire the level of groundwater and the watershed position by formulas. But there is a Critical value if water level difference beyond a threshold the formulas will not work. The Critical value is related to fluid density, dynamic viscosity coefficient, average flow velocity and average particle size. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tianjin Medical Journal is the property of Tianjin Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)