Search

近年来，中国脑卒中患者的发病率日益增高，且其所致的运动功能障碍往往严重影响了患者的日常生活质量，神经肌肉电刺激（NMES）作为一种新兴康复治疗手段，被广泛应用于治疗脑卒中患者的运动功能障碍。本文就NMES在脑卒中后运动功能康复中作用的参数、机制及其在临床中的运用进行了归纳总结。未来应进一步探讨NMES作用的具体机制及高效安全的治疗方案。

基于模块墙轻钢-混凝土框架结构体系，提出了一种适用于该结构的轻钢-混凝土组合柱-H型钢梁节点。为研究此节点的力学性能，对三组梁柱节点试件进行了单调加载试验。试验结果表明，在梁端单调荷载作用下，节点呈现出明显的半刚性特征。破坏表现为型钢拼合柱翼缘的屈服变形和混凝土的开裂，并随着顶角钢弯曲变形过大和加劲肋焊缝开裂而导致节点失效。采用ABAQUS有限元软件进行了精细化模拟。有限元模型的变形过程和破坏特征与试验结果相吻合。考虑H型钢梁截面高度、C型钢厚度和角钢厚度三个关键参数，进行了参数化分析。结果显示，增大梁截面高度和角钢连接件厚度显著提高了节点的抗弯承载力和初始转动刚度，呈现出线性正相关关系。相反，增加C型钢的厚度对节点的抗弯承载力影响有限，对初始转动刚度的影响较小。

目的本研究通过第二代高通量测序（NGS）检测配对骨肉瘤转移灶和原发灶标本，分析骨肉瘤原发灶与转移灶的基因图谱差异，以期发现促进骨肉瘤发生和转移的相关分子及可能机制。方法12例转移患者的原发灶与转移病灶肿瘤组织样本，使用第二代高通量测序（NGS）进行检测，其中9对panel检测（678个基因）以及3对全外显子检测（WES），分析比较骨肉瘤原发灶与转移灶的基因图谱差异：基因拷贝数变异通过EXCAVATOR检测；DNA层面的融合突变通过Lumpy检测；RNA层面的融合突变通过Defuse + STAR-Fusion，并通过Circos图显示突变的分布；Metascape 用于分析差异基因的 GO 和 KEGG 信号通路富集；使用Pyclone+Citup / LICHEE进行克隆进化分析。结果骨肉瘤基因总体突变模式主要以基因扩增为主，主要包括FLCN（37.5%），GID4（37.5%），TP53（33.3%），ATRX（25%），CALR（25%），CCND3（25%），CCNE1（25%），NOCR1（25%），TFEB（25%），VEGFA（25%）等基因。GO聚类结果提示细胞周期通路突变频率最高。KT1、PLCG2、EGFR这3个基因在转移灶显著富集的信号通路中多次出现，可能与骨肉瘤的转移密切相关。转移灶肿瘤负荷突变（TMB）频率显著高于原发灶（P=0.013）。3例进行WES检测的转移患者均呈现线性克隆进化，提示骨肉瘤转移基因的突变可能呈次序性累积。同时我们确定了可能在骨肉瘤进展中发挥作用的新候选基因，包括PLCG2、MYO15A与PEX6。结论骨肉瘤发生与转移的基因突变模式主要以基因扩增为主，骨肉瘤患者肿瘤负荷突变频率在转移灶中显著高于原发灶，转移患者存在相互关联的线性基因克隆进化。本研究发现了可能在骨肉瘤进展中发挥作用的3个新基因PLCG2、MYO15A和PEX6。

Copyright of Shipin Kexue/ Food Science is the property of Food Science 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.)

BACKGROUND: Previous studies have successfully constructed erythropoietin-overexpressed umbilical cord mesenchymal stem cells. It was found that the apoptosis of ischemic and hypoxic human neuroblastoma cell line (SH-SY5Y) was significantly reduced by erythropoietin-overexpressed umbilical cord mesenchymal stem cells. OBJECTIVE: To explore the possible neuroprotective mechanisms of erythropoietin-overexpressed umbilical cord mesenchymal stem cells against ischemic- hypoxic SH-SY5Y and their associated epigenetic mechanisms. METHODS: Oxygen-glucose deprivation was applied to ischemia-hypoxia-induced SH-SY5Y cell injury, and multifactorial assays were applied to detect the expression levels of inflammatory factors in the cells before and after hypoxia and co-culture, respectively, with mesenchymal stem cells, as well as lentiviral- transfected null-loaded plasmids of the negative control mesenchymal stem cells and erythropoietin-overexpressed umbilical cord mesenchymal stem cells. The expression levels of supernatant inflammatory factors were detected by multifactor assay after co-culture. Proteomics was used to detect the differentially expressed proteins of negative control mesenchymal stem cells and erythropoietin-overexpressed umbilical cord mesenchymal stem cells. Cleavage under targets and tagmentation sequencing was applied to detect genomic H3K4me2 modification, and joint analysis was conducted with RNA-sequencing. Lentiviral vector infection was applied to construct the stable knockdown of REST in SH-SY5Y cells. qRT-PCR and western blot assay were performed to detect the expression level of REST. The apoptosis was detected by flow cytometry after co-culture of oxygen-glucose deprivation treatment with erythropoietin- overexpressed umbilical cord mesenchymal stem cells. The expression difference of H3K36me3 group proteins was detected by western blot assay, and transcriptome sequencing was performed to analyze the differentially expressed genes. RESULTS AND CONCLUSION: (1) Compared with the control group, monocyte chemotactic protein 1, interleukin-6, interleukin-18, and interleukin-1 beta, interferon α2, and interleukin-23 levels significantly increased in the cerebrospinal fluid supernatant of patients with ischemic-hypoxic encephalopathy (P < 0.01). (2) After co-culturing SH-SY5Y cells with erythropoietin-overexpressed umbilical cord mesenchymal stem cells under ischemia and hypoxia, the expression levels of monocyte chemotactic protein 1 and interleukin-6 were significantly reduced. (3) Analysis of protein network interactions revealed significant downregulation of monocyte chemotactic protein 1, interleukin-6 related regulatory proteins CXCL1 and BGN. (4) Transcriptome sequencing analysis found that pro-inflammatory genes were down-regulated, and functional enrichment of histone modifications, and the expression of transcription factors REST and TET3 significantly up-regulated in the erythropoietin-overexpressed umbilical cord mesenchymal stem cell group compared with the negative control mesenchymal stem cell group. (5) Combined analysis of transcriptome sequencing and cleavage under targets and tagmentation revealed changes in epigenetic levels as well as significant activation of the promoter regions of transcription factors REST and TET3. (6) Stable knockdown REST in SH-SY5Y cells was successfully constructed; the transcript levels of REST mRNA and protein expression were both decreased. (7) After the REST knockdown SH-SY5Y cells were co-cultured with erythropoietin-overexpressed umbilical cord mesenchymal stem cells, apoptosis was significantly increased and H3K36me3 expression was significantly decreased. Transcriptome sequencing results showed that the expression of inflammation-related genes Aldh1l2 and Cth, as well as apoptosis-suppressor genes Mapk8ip1 and Sod2 was reduced at mRNA transcription level (P < 0.01). (8) It is concluded that erythropoietin-overexpressed umbilical cord mesenchymal stem cells activated the expression of REST and TET3 by altering the kurtosis of H3K4me2 and upregulated the modification level of H3K36me3, which in turn regulated the expression of inflammation-related genes Aldh1l2 and Cth, as well as apoptosis-suppressor genes Mapk8ip1 and Sod2, and facilitated neuronal survival. [ABSTRACT FROM AUTHOR]

To investigate the effects of different stand ages on the litter and soil water conservation ability in apple tree plantation, and clarify the water characteristics of apple tree plantation, is of great significance for establishing a reasonable orchard management system, consiolidating and expanding the achievements of poverty alleviation and realizing rural revitalization. Taking apple tree plantation of different stand ages (4, 6, 15 and 30 a) in Linyi County, Yuncheng City as the research object, this paper quantitatively described and studied the differences of litter and soil water conservation ability in apple tree plantation through field investigation and laboratory test. The results showed that： the total storage of the litter about the four stand ages in apple tree plantation ranged from 0. 82 to 2. 09 t/hm², the maximum water holding capacity ranged from 4. 91 to 13. 09 t/hm², and the water conservation capacity ranged from 3. 36 to 9. 38 t/hm² . With the increase of tree age, these parameters increased first and then decreased, and the maximum was 15 years old. There were good logarithmic and power function relationships between water holding capacity, water absorption rate and soaking time of litter layer respectively. Within the range of 0 to 60 cm, as the tree age increased, the soil bulk density decreased gradually, the total porosity and the maximum water holding increased gradually, and the maximum was 30 a. With the deepening of soil layer, the soil bulk density of apple tree plantation of different stand ages increased first and then decreased. Except 4 a, the total soil porosity of the remaining trees decreased gradually, but the difference between different soil layers was not significant. The maximum soil water holding capacity of 30 a orchard gradually decreased with the deepening of the soil layer, and the other trees showed a trend of decreasing first and then increasing at the age of 0 to 10 cm soil layer, and the minimum water holding capacity at 20 to 40 cm soil layer. According to the coordinate comprehensive evaluation method, the performance of litter and soil water conservation capacity of different stand ages was the strongest at the age of 15 years, the second at the age of 30 years, and the weakest at 4 a years. [ABSTRACT FROM AUTHOR]

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 Modern Preventive Medicine is the property of Modern Preventive Medicine 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 South-Central Minzu University (Natural Science Edition) is the property of Journal of South-Central Minzu University (Natural Science Edition) 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 Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences 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 Shipin Kexue/ Food Science is the property of Food Science 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.)

Apelin is an adipokine family which includes Apelin-13, Apelin-36 and other isoforms and regulates physiological functions by immunomodulation, oxidative stress, glycolipid metabolism, and apoptosis and so on. Apelin is closely related to polycystic ovary syndrome, ovarian cancer and other diseases of the female reproductive system so it is expected to be new target molecules and may orient the development of research and clinical treatment. [ABSTRACT FROM AUTHOR]

Copyright of Fly Ash Comprehensive Utilization is the property of Hebei Fly Ash Comprehensive Utilization Magazine 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 Journal of Xinyang Normal University Natural Science Edition is the property of Journal of Xinyang Normal University 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 Medical Education Technology is the property of China Medical Education 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 Lubrication Engineering (0254-0150) is the property of Editorial Office of LUBRICATION 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 Journal of Geomechanics is the property of Journal of Geomechanics 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.)

The issue of a high line failure rate due to long transmission distances is faced by the UHV three-terminal hybrid DC transmission system, which is an important form of DC transmission. The basis of stable system operation is formed by accurate fault location. A fault location method was proposed that addressed the challenge where existing fault location methods were applied to the unipolar grounding fault of the transmission line, leading to issues of fuzzy location and low accuracy under high resistance grounding fault conditions. The method proposed using wavelet packet entropy feature fusion to extract fault features and employed a BiTCN model optimized by ISSA. Firstly, the line-mode voltage traveling wave signal was extracted using wavelet packet transform, and the deep fault characteristics in the voltage waveform were described using information entropy. The feature matrix, composed of the entropy feature fusion feature vector, was formed as the input of the BiTCN model. Secondly, the BiTCN model was constructed and trained, and it was optimized using iterative ISSA optimization. Finally, accurate fault location of the three-terminal hybrid DC transmission line was achieved. The feasibility of the proposed method is verified by constructing the system model in the PSCAD / EMTDC simulation platform. The results indicate that the method is characterized by high positioning accuracy, good generalization ability, and robustness, and high resistance faults are effectively tolerated. [ABSTRACT FROM AUTHOR]

Copyright of Feed Industry is the property of Liaoning Provincial Institute of Agricultural Mechanization 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 Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology 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 Shipin Kexue/ Food Science is the property of Food Science 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 Foundry Technology (1000-8365) is the property of Foundry 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 Fudan University Journal of Medical Sciences is the property of Fudan University Journal of Medical 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.)

Copyright of Journal of Shenyang Pharmaceutical University is the property of Shenyang Pharmaceutical 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 Machine Tool & Hydraulics is the property of Guangzhou Mechanical Engineering Research Institute (GMERI) 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.)

Objective To evaluate the application of ultrasound-guided radial artery puncture and catheterization in critically ill patients in the ICU. Methods Totally 40 critically ill patients undergoing radial artery puncture and catheterization were divided into the control group and study group, with 40 cases in each group. The control group adopted conventional blind puncture method, while the experimental group used bedside B-mode ultrasound-guided radial artery puncture. The one-time success rate of puncture, puncture times and the total time of puncture were recorded and compared between two groups. Results The one-time success rate of puncture was 85. 00%(17/20)in the study group, which was significantly higher than 50. 00%(10/20)in the control group (P＜0. 05). The averaged puncture times and the total time of puncture in the study group were lower than those in the control group (P＜0. 01). Conclusion The ultrasound-guided radial artery puncture and catheterization can improve the success rate of one-time puncture, shorten the puncture time and reduce the number of puncture in ICU patients. (目的 探讨超声引导下桡动脉穿刺置管在ICU重症患者中的应用效果。方法 选择40例ICU重症患者为研究对象, 穿刺部位均为桡动脉。将患者分成两组, 对照组采用常规直接触摸动脉盲穿置管法, 研究组采用床旁B型超声引导下动脉穿刺置管法。记录两组患者一次穿刺成功率、穿刺次数及穿刺时间。结果 研究组一次穿刺置管成功率85. 00%(17/20), 高于对照组的50. 00%(10/20), 差异有统计学意义(P＜0. 05)。研究组平均穿刺次数和一次穿刺平均所需时间均低于对照组, 差异有统计学意义(P＜0. 01)。结论 针对ICU重症患者在超声引导下开展动脉穿刺, 能够提高一次性穿刺成功率, 缩短穿刺时间。)

(随着经济的持续发展, 非传染性慢性病已取代传染性疾病严重威胁人类的健康, 而慢性伤口糖尿病足的护理成为亟待解决的问题。本文以糖尿病足患者为研究对象, 了解患者无能为力感现状, 探讨影响无能为力感的重要影响因素, 进一步明确作用机制, 旨在增强医护人员对糖尿病足患者无能为力感的重视, 为患者制定针对性的护理干预措施提供参考依据。)

目的探讨体外受精-胚胎移植（IVF-ET）周期中体外培养的胚胎发生污染的情况及其实验室培养和临床结局。方法回顾性分析2010年1月至2020年12月中山大学孙逸仙纪念医院生殖中心IVF-ET周期中70例胚胎污染的相关资料，比较不同授精方式的污染发生率、体外培养第1~3天（D1-D3）的污染发现率、以及卵泡液、精液、培养液3种标本的污染发生率，统计污染的微生物类型，比较全污染组（42例）和部分污染组（28例）的实验室培养及临床结局相关参数。结果在29 583个周期中共出现70例胚胎污染（0.24%），所有污染均为体外受精（IVF）来源的胚胎而非卵胞浆内单精子注射（ICSI）来源的胚胎；在体外培养不同天数中，D2污染发现率最高（54.3%），其次是D1（32.9%）和D3（12.9%）；与卵泡液相比，精液是导致D1-D3污染发现的主要原因；卵泡液的主要污染源是粪肠球菌（18.0%），精液和培养液的主要污染源是大肠杆菌（59.6%， 66.7%），同时有5例污染周期的培养液中出现与卵泡液、精液均不一致的细菌类型；与全污染组相比，部分污染组的无可用胚胎周期率显著性降低（6/28 vs. 34/42， 21.4% vs. 81.0%， P < 0.001），囊胚形成周期率有升高趋势（5/12 vs. 2/7， 41.2% vs. 28.6%， P = 0.656），同时，部分污染组新鲜周期与解冻周期移植后的临床妊娠例数、活产例数均高于全污染组。结论ICSI受精方式可有效避免胚胎污染发生；胚胎污染主要在体外培养的第2天发现，污染主要来源是精液携带的大肠杆菌；当只有部分胚胎发生污染时，仍可获得较好的实验室和临床结局。

Copyright of Journal of Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences 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.)

Objective：To study the characteristics and correlative factors of pulse oxygen saturation (SpO2) and exercise tolerance during the 6-min walk test (6MWT) in the stable chronic obstructive pulmonary disease (COPD) patients, aiming to provide a simple and effective objective assessment method for COPD patients. Methods：A total of 58 stable COPD patients and 21 control subjects were enrolled. General data, modified Medical Research Council dyspnoea scale (mMRC) score, COPD assessment test (CAT) score, pulmonary function parameters (such as FEV1%Pred, FVC%Pred, DLCO%Pred, DLCO/VA%Pred), and 6MWT-related parameters were collected. The study analyzed the differences in SpO2 and exercise tolerance indicators between groups, and their correlation with commonly used COPD assessment indicators. Results：COPD patients exhibited a decline in exercise SpO2 during the 6MWT, characterized by the occurrence of exercise-induced desaturation (EID), a decline in minimum SpO (2 SpO2min) and mean SpO (2 SpO2mean), an increase in the percentage of time with SpO2 below 88%, 90%, and 92% (T88, T90, T92) and desaturation area (DA). There were differences in the 6 - minute walk distance (6 MWD) as a percentage of the predicted value (6MWD% Pred) and the distance ratio (DDR) between the two groups. SpO2mean, DA, DDR and 6MWD%Pred were correlated with mMRC scores, FEV1%Pred, FVC%Pred, and resting SpO (2 SpO2rest). DDR was also correlated with DLCO%Pred and DLCO/VA%Pred. However, multivariable linear regression analysis showed that only mMRC scores, DLCO%Pred, and SpO2rest were independently associated with DDR. Conclusion： Continuous SpO2 monitoring during the 6MWT, with parameters such as SpO2mean, DA, DDR, and 6MWD%Pred, can effectively reflect pulmonary function and symptoms of stable COPD patients, suggesting its efficacy in assessment and management of COPD patients. desaturation [ABSTRACT FROM AUTHOR]

Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan 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.)

Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society 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 Soil & Water Conservation (1009-2242) is the property of Institute of Soil & Water Conservation 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 Shenyang Pharmaceutical University is the property of Shenyang Pharmaceutical 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 Shenyang Pharmaceutical University is the property of Shenyang Pharmaceutical 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 Machine Tool & Hydraulics is the property of Guangzhou Mechanical Engineering Research Institute (GMERI) 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 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 Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 China Forest Products Industry is the property of China Forest Products Industry 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 Pearl River is the property of Pearl River 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 Biotechnology Bulletin is the property of Biotechnology Bulletin 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 Xi'an Jiaotong University is the property of Editorial Office of Journal of Xi'an Jiaotong 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.)