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Copyright of Chinese Journal of Dermatovenereology is the property of Xi'an Jiaotong University Periodicals Center 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 Basic & Clinical Medicine is the property of Editorial Office of Basic & Clinical Medicine 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 Educational Studies (1673-1298) is the property of Journal of Educational Studies 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 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.)

Objective To explore the mechanism of action of Guben Zenggu prescription on osteoporosis model rats based on the ERK/Smad signaling pathway, and to reveal its pharmacological effects on preventing and treating osteoporosis. Methods SPF grade Wistar rats were divided into high, medium, and low dose groups of Guben Zenggu prescription, estradiol group, sham operation group, and model group, with 10 rats each. Low, medium, and high doses of Guben Zenggu prescription were gavaged with 6. 1 g/(kg.d), 12. 2 g/(kg.d), and 24. 4 g/(kg.d). Sham operation group and model group were given equal volume normal saline irrigation. Blood was collected from the heart after the last intragastric administration, the serum BALP and TRACP- 5b levels were detected by ELISA. Bone mineral density of the proximal femur of the rats was measured by DXA, and HE staining was performed. RT-PCR was used to detect the mRNA expression of ERK-1, ERK-2, and Smad4, while Western blot was used to detect the protein expression of ERK, p-ERK, and Smad4. Results The intervention of Guben Zenggu prescription, compared with the model group, medium and high doses can increase bone density, significantly improve bone trabecular morphology. significantly increase serum BALP and BGP levels, ERK-1, ERK-2, and Smad4 mRNA, significantly increase the expression of ERK, p-ERK, and Smad4 proteins (P<0.05), and significantly decrease serum TRACP levels (P<0.05). Conclusion Guben. Zenggu prescription can improve bone metabolism and increase bone density in postmenopausal osteoporosis model rats, which may be related to activating the ERK/Smad signaling pathway to promote osteogenic differentiation. [ABSTRACT FROM AUTHOR]

Copyright of Computer Measurement & Control is the property of Magazine Agency of Computer Measurement & Control 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.)

To evaluate the effects of ultrasus-guided thoracic paravertebral nerve block (TPVB) and erectile spinal-plane block (ESPB) on perioperative stress response and analgesia in patients undergoing thoracoscopic surgery. Methods Ninety patients underwent thoracoscopic surgery under elective general anesthesia were included and randomly divided into the control group (group C), the ESPB group (group E) and the TPVB group (group T), with 30 cases in each group. Before anesthesia induction, no treatment was given to the group C, and the group E and the group T were treated with ultrasound guided ESPB and TPVB on the affected side, and injected with 20 mL of 0.5% ropivacaine. Patient controlled analgesia (PCIA) was connected after operation. The venous blood samples were collected immediately before operation (T0), 30 minutes after operation (T1) and at the time of tracheal catheter removal (T2) to test the concentration of blood glucose (Glu) and serum cortisol (Cor). The type of surgery, the duration time of surgery, the number of patients who needed to use phenylephrine and the amount of remifentanil for hypotension during operation were recorded. Visual analog scores (VAS) of patients at rest and coughing status at T2, 12 hours after operation (T3), 24 hours after operation (T4), 48 hours after operation (T5), the total number of PCIA compression and the total amount of PCIA sufentanil infusion within 48 hours after operation, the use of rescue analgesia, and the occurrence of adverse reactions were recorded. Results Compared with T0, concentrations of Cor and Glu at T1 and T2, were increased in patients (P＜0.05). Compared with the group C, Glu was significantly decreased in the group T, the resting VAS pain scores of T2, T3, T4 and T5 were decreased in the group T and the group E. The coughing VAS pain scores of T2 and T4 were decreased, and the intraoperative dosage of reifentanil, the number of PCIA compression and the total infusion of sufentanil were decreased. The remedial analgesic rate was decreased in the T group (P＜0.05). Compared with the group T, the resting VAS scores of T2, T3 and T4 were increased in the group E, and the coughing VAS scores of T3 were increased, the number of PCIA compression, remifentanil usage and the total infusion of PCIA sufentanil were increased. The percentage of intraoperative use of norepinephrine for hypotension was decreased (P＜ 0.05). Conclusion TPVB can inhibit the stress response of patients undergoing thoracoscopic surgery. TPVB could provide better postoperative analgesia than ESPB, and has a significant inhibitory effect on intraoperative blood pressure. [ABSTRACT FROM AUTHOR]

Herein we comment on and discuss the article mentioned in the title, "Understanding the Effect of Solvents on the Nucleophilicity of CH3O-/CH3S- Using Quantum Chemical Calculations", which was published in this journal. By implementing the recent advances in solvent effect, we intend to use quantum chemistry to improve the understanding of students towards solvent effect on ion-molecular nucleophilic substitution (SN2) reactions. We have added visualization examples to demonstrate the different properties of nucleophiles CH3O- and CH3S-, uncovered the nature of how solvation weakens the nucleophilicity through comparing the potential energy profiles in gas and liquid phases, considered different types of solvents, and employed frontier molecular orbital model to illustrate the solvation effect. We anticipate the work herein can improve this teaching case as a model for organic chemistry assisted by computational chemistry. [ABSTRACT FROM AUTHOR]

Copyright of Acta Petrologica et Mineralogica / Yanshi Kuangwuxue Zazhi is the property of Acta Petrologica et Mineralogica 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 active ingredients, core targets, and potential mechanisms of mudan cortex in treatment of corona virus disease 2019（COVID-19) based on network pharmacology and molecular docking. Methods The Traditional Chinese Medicine Systems Pharmacology （TCMSP） was used to obtain the main active ingredient compounds and targets of mudan cortex, and the GeneCards® and OMIM® databases were used to obtain COVID-19-related targets, and the potential targets of mudan cortex for COVID-19 treatment were obtained by intersecting the above two. The potential targets were input into the STRING database to obtain the interactions of the target proteins in the biological sys‐ tem and to build a PPI network, and the COVID-19-mudan cortex-active ingredient-target network was diagrammed using Cytoscape software. GO and KEGG enrichment analyses were performed on the potential targets to obtain the relevant gene functions and signaling pathways. The Discovery Studio 2019 software was used to perform molecule-protein docking of the main active components of mudan cortex in the target network diagram and the clinically used drugs Nematovir and Raltegravir in treatment of COVID-19 with the important targets of COVID-19 3CL protease and angiotensin-converting enzyme 2（ACE2）. Results A total of 6 active ingredients of mudan cortex, quercetin, mairin, sitosterol, kaempferol，（+）-cat‐ echin, and 5-［［5-（4-methoxyphenyl）-2-furyl］methylene］barbituric acid and 150 their related targets were obtained, and 716 targets related to COVID-19 were intersected to obtain 36 potential targets of mudan cortex for the treatment of COVID19. The PPI diagram showed that the core proteins were mainly VEGFA, IL-6, and IL-1B. The COVID-19-mudan cortexactive ingredient-target network diagram showed that the active ingredients of mudan cortex for COVID-19 were sequential‐ ly, quercetin, kaempferol, barbituric acid, and （+）-catechin, with the main targets of PPARG, PTGS2, and estrogen re‐ ceptor 1（ESR1）. GO and KEGG enrichment analysis obtained 61 molecular functions and 109 signaling pathways. The molecular functions mainly included cytokine receptor binding, DNA-binding transcription factor binding, and signaling receptor activator activity. The signaling pathways mainly included lipids and atherosclerosis, IL-17, and tumor necrosis factor （TNF） family, etc. The molecular-protein docking results showed that the barbituric acid and quercetin had a more stable binding capacity to 3CL protease and ACE2, respectively, in comparison with Nematovir and Raltegravir. Conclu⁃ sion Mudan cortex exerts a therapeutic effect on COVID-19 through the active ingredients quercetin, barbituric acid, （+）-catechin, and kaempferol acting on PPARG, PTGS2, and ESR1, etc., and the mechanisms are mainly related to lip‐ ids and atherosclerosis, IL-17, TNF, and other pathways. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Architecture & Civil Engineering is the property of Chang'an Daxue Zazhishe 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.)

Copyright of Natural Gas Geoscience is the property of Natural Gas Geoscience 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 Food & Machinery is the property of Food & Machinery 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 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 Power Generation Technology is the property of Power Generation Technology 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 Control Theory & Applications / Kongzhi Lilun Yu Yinyong is the property of Editorial Department of Control Theory & Applications 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.)

With the increasing demand lor lithium resources, as the main source of lithium, the separation technology ol spodumene needs to be continuously developed and improved. To expand the dillerence in floatability between spodumene and gangue minerals is the key for improving the flotation elliciency ol spodumene. This article summarizes the crystal plane anisotropy of spodumene and gangue minerals, and the latest developments in the Ilotation research ol spodumene ore in recent years. Analysis shows that the cleavage planes ol spodumene have strong anisotropy and selective dissolution behavior ol surface components. Adjusting the ratio ol dominant cleavage plane ol spodumene and the selective dissolution ol surface components, as well as the use ol anion and cation combined collectors, can further strengthen the Ilotation ol spodumene. In addition, more ellorts should be devoted to the development of selective depressants for gangue minerals, all of these will become the important direction lor the research ol spodumene Ilotation technology. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co 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 Control Theory & Applications / Kongzhi Lilun Yu Yinyong is the property of Editorial Department of Control Theory & Applications 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 Systems Engineering & Electronics is the property of Journal of Systems Engineering & Electronics 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.)

目的 分析结肠微小息肉患者术后复发的影响因素。方法 选择结肠微小息肉患者 400 例,行冷圈套切除术或高频电凝电切术治疗,术后随访2 年,复发 84 例、未复发 316 例。收集患者的临床资料,采用单因素分析及多因素 Logistic 回归分析复发的影响因素。结果 单因素分析结果显示,性别、年龄及伴随症状便秘对结肠微小息肉患者术后复发无影响 (P均>0. 05) ;而伴随症状便血、腹泻,息肉部位、直径、数目、形态、类型及切除方式均可对结肠微小息肉患者术后复发有影响 (P均<0. 05)。多因素分析结果显示,伴随症状便血、腹泻,息肉部位、直径、数目、形态、类型及切除方式均为结肠微小息肉患者术后复发的影响因素 (P均<0. 05)。结论 伴便血、腹泻,息肉部位为升结肠、乙状结肠,息肉越大,数目越多,呈现无蒂形态,管状腺瘤、行高频电凝电切术治疗均可增加结肠微小息肉患者术后复发的风险,行冷圈套切除术治疗可降低其复发风险。 [ABSTRACT FROM AUTHOR]

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming 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.)

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China 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 Food Research & Development is the property of Food Research & Development 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.)

Copyright of Journal of Southern Agriculture is the property of Journal of Southern Agriculture 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 Research of Environmental Sciences is the property of Research of Environmental Sciences 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.)

Objective To investigate the curative effect of midnight-noon ebb-flow with hour-prescription of points of acupoint application in the treatment of senile osteoporosis． Methods 83 cases of senile osteoporosis treated in our hospital from May 2014 to September 2015 were divided into observation group ( n = 41) and control group ( n = 42) according to the digital table method． Both groups received oral Caltrate D，the observation group was treated by midnight-noon ebb-flow with hour-prescription of points of acupoint application therapy，the control group was treated with conventional acupoint sticking therapy． Oswestry disability index， quality of life questionnaire and self-rating Anxiety Scale were used to evaluate dysfunction，quality of life and anxiety of the two groups before and after treatment． Ｒesults ODI and SAS scores of the two groups after treatment were significantly lower than those before treatment ( P ＜ 0. 05) ． After 4 weeks treatment，the ODI and SAS scores in the observation group were significantly lower than those in the control group，and the scores of the 8 dimensions of physical function，physical pain，physical function， vitality，social ability，emotional function，mental health and general health were significantly higher in the observation group than the control group ( P ＜ 0. 05) ． Conclusion Midnight-noon ebb-flow with hour-prescription of points of acupoint application could improve dysfunction，reduce anxiety，and improve the level of quality of life in senile osteoporosis patients． It is worthy of wider clinical application． [ABSTRACT FROM AUTHOR]

目的 对比观察结肠镜下高频电疑电切术与冷圈套切术治疗结肠傲小息肉的效果。方法 选择结肠微 小息肉患者 94 例, 按随机数字表法将其分为高频电凝电切组和冷圈套切组，每组 47 例。经结肠镜检查发现息肉 后商频电凝电切组采用商频电凝电切切除息肉；冷圈套切组通过活检孔道将冷圈套器送入并套取息肉，套取完全 后逐渐收紧勒除息肉。对比两组息肉切除数罣、切除时间、完整切除率和标本回收率; 统计两组并发症发生悄况; 分别于术后 6 个月及1、2、3年统计息肉复发、新生息肉数掘，计算累积发病率。结果 冷圈套切组完整切除率商 于高频电凝电切组 (P<0.05)，切除时间短于高频电凝电切组 (P< 0. 05)；两组人均切除息肉数、标本回收率比较 差异均无统计学意义 (P 均＞0.05)；两组并发症发生悄况比较差异无统计学意义 (P>0. 05); 冷圈套切组术后3 年 累积复发率低于高频电凝电切组(P<0.05)。结论 与结肠镜下高频电疑电切术相比，冷圈套切除术治疗结肠微 小息肉操作更方便，切除完整率更窝，术后累积复发率较低，且未增加并发症。 [ABSTRACT FROM AUTHOR]

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.)

Copyright of Journal of Southern Agriculture is the property of Journal of Southern Agriculture 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 study the level of brachial-ankle pulse wave velocity （ba-PWV） and Ankle Brachial Index （ABI） in elderly Chronic Obstructive Pulmonary Disease （COPD） patients,and to investigate the relations of ba-PWV, ABI and pulmonary function, inflammatory factor in elderly COPD patients. Methods According to the results of the pulmonary function test, 109 cases were divided into three groups：mild- to- moderate COPD group of 42 cases, severe and very severe COPD group of 31 cases, control group of 36 cases. Comparing the level of ba-PWV、 ABI、 inflammatory factor、 pulmonary function in three groups. Results The average ba-PWV of mild- to- moderate COPD group and severe and very severe COPD group were higher than control group （P〈0.01）, the average ba-PWV of severe and very severe COPD group was higher than mild- to- moderate COPD group （P〈0.01）. The compare of the average ABI among three groups had no statistical significance （P〉0.05）. The FEV1：FVC ratio and the percent predicted FEV1 were negatively correlated with the average ba-PWV （P〈0.01）. The hs-CRP、 IL- 6、 TNF-a were positively correlated with the average ba-PWV in all research object （P〈0.01）. Conclusions The elderly COPD patients arterial stiffness is worse than control group with no COPD.The level of ba-PWV is positively correlated with the severity of airway obstruction and the levels of inflammatory factors The elevated levels of inflammatory factors may be one of the factors influencing arterial stiffness in COPD patients. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming 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.)

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming 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.)

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming 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.)

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers 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.)