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中国风、光资源密集地区与电力负荷集中地区的不匹配为可再生能源大规模发展后的消纳问题带来重大挑战，“双碳”目标下，如何促进可再生能源消纳已成为中国能源结构转型亟需解决的问题。从增加电力需求和提升负荷灵活性的创新视角出发，以内蒙古自治区为例探究风、光资源密集地区可再生能源消纳情况、形成原因及其破解思路。研究发现，2030年，内蒙古可能产生约2000亿kWh弃风弃光量；经济发展、人口规模、第二产业与第三产业发展、居民供暖等是内蒙古电力需求增长的主要驱动因素，当前工业发展对地区电力消费和可再生能源消纳的带动作用有待提升；内蒙古钢铁行业和电解铝行业通过采用电弧炉炼钢工艺、电解槽改造技术等方式，可以为电力系统提供巨大的负荷灵活性潜力。鉴于此，风、光资源密集地区应积极推动能源结构转型和产业结构电气化转型的协同机制，激励工业用户等市场主体提供负荷灵活性，鼓励最终消费端采用绿色清洁电力实现对传统化石能源的替代，进而有效促进可再生能源的消纳。

由浙江、江苏、安徽和上海组成的长三角地区是国内经济发展高地，同时也是高碳排放区域。研究长三角地区细分行业碳效率特征及其影响因素，不仅对这一地区实现低碳发展目标具有重要意义，也对全国其他地区未来低碳发展具有较为重要的指导意义。利用固定效应随机前沿模型对2014至2019年三省一市37个行业进行了碳效率测算，并对各地区工业碳效率动态变化进行了分析；然后，基于随机前沿模型方法对碳效率影响因素进行了探究；最后，应用不同生产函数形式和去极端值的方式验证了本模型的稳健性。研究结果表明，长三角地区三省一市的高碳效率行业存在明显差异，且主要受行业专业化程度以及环境规制强度的影响，国有资产占比对碳效率的影响在安徽省显著。此外，提高专业化程度是持续推动碳效率水平提高的关键性因素，环境规制能快速推动部分行业提高碳效率，但是无法推动地区工业碳效率的长期进步。

碳排放权交易（碳交易）是推动二氧化碳减排的重要手段，基于空间特征的研究有利于全面、准确地理解碳排放权交易市场的减排效果。基于中国1999—2017年285个地级市的平衡面板数据，通过空间双重差分模型探究碳交易试点的减排效果及传导机制。研究发现：第一，碳交易不但能有效促进本地二氧化碳减排，而且对周边地区还存在一定溢出效应；第二，碳交易可以推动试点地区与周边地区经济增长，同时驱动二氧化碳减排；第三，碳交易在工业规模更大的地区有更好的二氧化减排效果及溢出效应；第四，碳交易通过推动试点地区及周边地区研发人员增加和研发投入低碳化促进二氧化碳减排。基于研究结果，进一步提出了相关政策建议。

低碳甚至零碳能源系统是气候解决方案的基础。研究表明，大多数减排措施都需要多学科、多产业、多部门的深度合作；同时，碳排放的演化和发展是个长周期的过程，中观尺度的行业脱碳发展规划、碳市场机制以及微观尺度各类脱碳综合技术研究，迫切需要宏观尺度能源系统层面提出中长远期的定量约束、目标和路径方案。通过分析能源系统互联互通的发展趋势以及能源系统微观、中观和宏观尺度研究之间的密切相互影响，提出大框架下的宏观能源系统跨学科融合和定量研究方法学的重要性，倡导学术期刊积极主动为能源气候研究搭建跨学科交流平台。

The oocytes of aging women are more prone to aneuploidy. Oocyte aneuploidy is a significant factor contributing to the reduced fertility in aging women and the unfavorable pregnancy outcomes, including miscarriage, chromosomal abnormalities and birth defects. With the increase of age, the accumulation of reactive oxygen species (ROS) in oocytes causes the oxidative stress damage that interferes with the signal transduction of spindle assembly and spindle assembly checkpoints, shortens telomeres and reduces chromosome cohesion. The oxidative stress is therefore an important reason for the increase of aneuploidy of oocytes. We review the relationship between oxidative stress and aneuploidy in oocytes of aging women, in order to provide a reference for saving the fertility of aging women. [ABSTRACT FROM AUTHOR]

Copyright of China Brewing is the property of China Brewing 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 explore the key genes related to patients with recurrent implantation failure (RIF) using bioinformatics analysis, to identify cell subpopulations and cell-cell communications in human endometrium, and to discuss the impact on endometrial receptivity. Methods: The GSE103465 dataset, GSE183837 dataset and GSE223672 dataset were downloaded from the Gene Expression Omnibus (GEO) database as research samples. Endometrial tissue data from RIF patients and control females were utilized. R language and Perl scripts were employed to conduct the quality analysis on the raw data, and the limma package was utilized for differential gene selection. The selected differentially expressed genes were subjected to gene ontology (GO) and Kyoto encyclopedia of genes and genome (KEGG) analysis, Protein-Protein Interaction Networks (PPI) construction and core gene selection. Using R language-related packages, single-cell annotation and classification were performed, followed by the construction of an intercellular communication map. Results: The identified key genes included RPF2, DDX27, PWP2, CDC5L, NOP2, DCAF13, CEBPZ, FTSJ1, GNL3L, and NSUN2. The main cell types in the endometrium of patients with RIF were identified as epithelial cells, NK cells, granulocyte-monocyte progenitors, endothelial cells, and smooth muscle cells. The enriched pathways involving GRN, SPP1, PTN, MIF, MK signaling pathways participate in the intercellular communication through receptor-ligand pairs. Conclusions: The impaired endometrial receptivity in RIF patients is associated with aberrant RNA modification and processing and epigenetic modification errors, as well as inflammatory response and decreased metabolism. Intercellular communication reveals that endometrial epithelial cells in RIF patients have a decreased capacity for osteoblastin -integrin - mediated adhesion and invasion, which may be the cause of embryo implantation failure. [ABSTRACT FROM AUTHOR]

Facing the risk challenges of storms and floods in the future, strengthening the research on risk communication and public participation, improving the effectiveness of risk management will help to reduce disaster risks. Due to the effective information dissemination capabilities of social media, it is becoming increasingly crucial in disaster management. Based on 98 078 pieces of Weibo information crawled of the keyword Henan from rainstorm from Sina Weibo, this paper analyzes the changes of public concern through text extraction, statistics, and co-occurrence network, and explores the differences and tendencies of public concern to different disaster information. The research results are as follows. The evolution process of rainstorm flood disaster event in Henan is divided into four stages: incubation period, outbreak period, sustained period, and fading period. The degree of public concern is affected by the intensity of hazards at the early stage of the disaster, and when the hazards reach a certain intensity and cause serious disasters, it will arouse extensive and sustained public concern. The Weibo text of rainstorm flood disaster event mainly presents three themes: hazards, disaster impact, and response. This event can be subdivided into 26 categories according to the information content. The public is concerned with different types of disaster information in different periods. In the incubation period, the public is most concerned about the early warning information of hazards such as flash floods, but the attention is low. During the outbreak period, sustained period, and fading period, waterlogging has become the most concerned hazards for the public, casualties and traffic jams are the most concerned disaster impact, and online help, donations and on-site rescue are the most concerned responses for the public. There are six cohesive subgroups in this event, including casualties, traffic jams, economic losses, energy communication, production and life, and secondary disasters. Among them, casualties, victims' online help, on-site rescue, and donations are the core events of this rainstorm flood disaster event, which constitute the core cohesive subgroup of the theme of casualties. Based on this, some suggestions for improving the release of disaster information for governments are put forward. [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 Guangdong Medical Journal is the property of Guangdong Medical 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.)

Embryo implantation induces the adaptive reprogramming of metabolism at the maternal-fetal interface, resulting in a hypoxic, mildly inflammatory, and slight acidic microenvironment. This type of microenvironment is conductive to establish endometrial receptivity, decidualization, trophoblast invasion and maternal-fetal immune tolerance by regulating the recruitment, activation, metabolism and polarization of immune cell. Successful embryo implantation necessitates the well -timed and suitable initiation and termination of the immune-inflammatory response and the glycolysis -dominated metabolic reprogramming. The dysregulation of immunometabolism caused by pathologic factors can result in adverse pregnancy outcomes, such as embryo implantation failure or post-implantation miscarriage. Macrophage as the most abundant antigen-presenting cell in the endometrium during the implantation window plays a crucial role in regulating immunometabolism at the maternal -fetal interface due to the remarkable immune plasticity and metabolic flexibility. We review the immunometabolic microenvironment and regulatory mechanisms at the maternal -fetal interface, to provide a reference for the advancement of clinical intervention approaches so as to improve the pregnancy outcomes in both natural conception and assisted reproduction. [ABSTRACT FROM AUTHOR]

The thermal radiation asymmetry of the building envelope may lead to the abnormal distribution of indoor air temperature and humidity, which in return might produce the deviation of the thermal comfort zone. To precisely predict the thermal and flow characteristics of the indoor thermal environment under the asymmetric thermal radiation condition, the experiment was conducted in an environmental laboratory at the Qingdao plant of Hisense Air Conditioning Company. The laboratory was modeled in full scale, strictly following its dimensions and layout, while keeping the flow and heat exchange structures inside the air conditioner to ensure the accuracy of the simulation. Considering the high Reynolds transition flow and the far-field low Reynolds flow during the steady operation of the air-conditioner, the SST k-ω turbulence model was adopted. Meanwhile, the porous media model was selected to simulate the internal heat exchangers of the air conditioner, and the coupled algorithm was adopted to realize the quick iterations. Experimental measurements under the same boundary condition were conducted to validate the accuracy of the simulation, including the air temperature at 210 measurement points and the relative humidity at four heights inside the laboratory. Some critical parameters such as air uniformity and vertical temperature difference were calculated. The results indicate that the relative error between simulated and measured air supply volume values is 7%, and 98% of the temperature measurement points' relative error is within ± 5% . The findings demonstrate that the full-scale numerical simulation strategies used in the study could provide a reliable solution for the precise prediction of indoor thermal environments under asymmetric thermal radiation conditions. [ABSTRACT FROM AUTHOR]

N6 -methyladenosine (m6 A) refers to the methylation modification at the N6 position of adenosine in RNA, which is the most abundant epitranscriptomic modification in mammalian mRNA. m6 A depends on the co -regulatory effects of methyltransferase (Writer), demethylase (Eraser) and m6 A binding protein (Reader). Numerous studies have shown that m6 A and its regulatory enzymes are present in the follicles and early embryonic tissues at all development stages, and that m6 A is extensively involved in the mRNA metabolic processes by virtue of their dynamic, reversible and sensitive properties. Therefore, m6 A participates in the regulation of oogenesis, nuclear reprogramming, lineage differentiation, implantation, and gestation maintenance of early embryos at the post-transcriptional level. Because m6 A is largely related to female fertility and pregnancy outcome, m6 A may be a new marker of diagnosis and prognosis of many reproductive diseases, or a potential therapeutic target. [ABSTRACT FROM AUTHOR]

Objectives: With the advancement of transmission technology, digital devices and display technology, video has rapidly become one of the most popular entertainment media. In order to understand large-scale data such as video with rich and complex semantics, it is necessary to effectively classify human behaviors and events in it. At present, many video classification algorithms need a large number of label samples to train the model in order to obtain higher classification accuracy. However, there are still problems in the acquisition of massive label data: It is difficult to collect a large amount of training data for each category, and it is time-consuming and laborious to annotate these data one by one. Methods: In order to solve the problems of insufficient training samples caused by the high complexity of video classification task and the difficulty in obtaining labeled data, we use the known semantic information of video labels as the knowledge prior, use 3D Dense Net as the backbone network, and adopt the zero-sample learning method to classify video. Using the dense connection unique to the dense network, the depth information can be obtained while ensuring the effective transmission of gradient without generating a large amount of redundancy and resulting in the waste of computation. The original 2D convolution of the dense network can be re‐ placed by 3D convolution, and the spatial-temporal information of the video can be extracted directly. The existing zero-shot video classification method adopts the point-integration classification method, which is easy to make the neuron generate high variance, so that the model is very sensitive to the change of input distribution. To solve this problem, a 3D Dense Net for zero-shot video classification (DZSVC) algorithm is proposed by combining 3D Dense Net and cosine similarity classification method. The cosine similarity classification method is used to replace the point integral classification method, which makes the model more robust to the input amplitude of the system. In addition, based on the dense characteristics of 3D Dense Net, DZSVC algorithm can extract richer temporal and spatial information from video data, and map the extracted feature vectors to the public space. Results: The accuracy rates on UCF101 and HMDB51 are 32.9% and 20.2%, respectively. The accuracy rates on UCF50 and HMDB25 are 41.4% and 23.7%, respectively. Conclusions: The effectiveness of this method is proved through multiple sets of experiments. Compared with the existing zero-shot video classification method, the proposed method can be more effectively applied to video classification. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Contemporary Pediatrics is the property of Xiangya Medical Periodical Press 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 observe the changes of ANP levels in the peripheral blood of patients with essential hypertension in Yunnan, and to explore the relationship between it and the pathogenesis of essential hypertension. Methods We selected 44 patients with essential hypertension diagnosed in the cardiology department of our hospital from June to September 2019 and set them as the case group. We also selected 44 healthy patients from the physical examination center of our hospital as the healthy control group. The ELISA method was used to detect the ANP level in the peripheral blood of the subjects. Results The level of ANP in the peripheral blood of patients with essential hypertension was significantly lower than that of normal people ( P < 0.05)；the occurrence of hypertension was used as the dependent variable and the serum ANP was used as the independent variable for logistic regression analysis. The results showed that ANP The partial regression coefficient with hypertension was 0.071, and the P value was 0.002 (P < 0.05). It was statistically significant; the person correlation analysis was used to analyze ANP and SBP/DBP, and the results showed that the correlation coefficient between ANP and SBP was -0.374. The P value is 0.000 (P < 0.05)；the correlation coefficient between ANP and DBP is - 0.331, and the P value is 0.002（P < 0.05), both of which are statistically significant, but compared to DBP, the correlation between ANP and SBP is more significant. Conclusions The low concentration of ANP in peripheral blood is closely related to the increase of blood pressure; NPR-C ligand ANP is involved in the pathogenesis of essential hypertension; ANP affects the changes in the level of SBP/DBP, and has a more significant impact on SBP. [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.)

Bone morphogenetic protein 15 (BMP15) as an oocyte-secreted factor is vital to the regulation of follicle development. BMP15 promotes the development and maturation of oocytes by cooperating with amphiregulin and up-regulating the expression of cumulus expansion genes. BMP15 also promotes the proliferation and differentiation of granulosa cells by increasing the sensitivity of granulosa cells to FSH and stimulating the expression of Kit ligands in granulosa cells. BMP15 inhibits follicular atresia by regulating the expression of follicle apoptosis-related factors; and BMP15 can also mediate the regulation of steroid hormones by regulating the FSH receptor and the downstream Smad signaling pathways. The decreased expression or gene mutation of BMP15 may induce the apoptosis of granulosa cells, hinder the process of early follicle development and oogenesis, and mediate the pathogenesis of various diseases such as polycystic ovary syndrome and premature ovarian insufficiency. In this article, we review the roles of BMP15 in folliculogenesis and the research progress of BMP15-related reproductive endocrine diseases. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Technology Economics is the property of Chinese Society of Technology Economics 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 Pharmaceutial Care & Research is the property of Editorial Board of Pharmaceutial Care & 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.)

Copyright of Chinese Journal of Contemporary Pediatrics is the property of Xiangya Medical Periodical Press 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 existing machine reading comprehension models mainly use the recurrent neural network to process the text sequence information, which easily leads to slow down the training and prediction speed, and low accuracy of model prediction, this paper proposed a span-extraction machine reading comprehension algorithm QA-Reader. The algorithm first used a large pre-trained language model RoBERTa-www-ext to obtain the word embedding representations of questions and text. Secondly, it used deep separable convolution neural network and multi-head self-attention mechanism to encode. Then it calculated the bidirectional attention and the text’s self-attention to fuse the correlation information between text and problem, and splicing to get the final semantic representation. Finally, the model encoder predicted the answer. For the unanswerable questions, the model calculated the unanswerable probability. Experiments were carried out on the Chinese span-extraction machine reading comprehension datasets. The results show that compared with the baseline model, the QA-Reader model has improved EM andF1 values by 3. 821% and 2. 740% in performance, and the training speed has improved by 0. 089%. [ABSTRACT FROM AUTHOR]

Copyright of Journal of International Reproductive Health/Family Planning is the property of Editorial Board of the Journal of International Reproductive Health/Family Planning 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 Asian Journals of Ecotoxicology is the property of Gai Kan Bian Wei Hui 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 Journal of Aesthetic & Plastic Surgery is the property of Chinese Journal of Aesthetic & Plastic Surgery 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 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 International Architecture 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.)

Objective To investigate the polymorphism distribution of NPR-C gene A-55C in essential hypertensive of YunNan Province in China. Methods 100 patients with essential hypertension of the Han nationality in YunNan were selected as the observation group，aged between 40 and 80，including 48 males and52 females. PCR-RFLP was used to detect the polymorphism distribution of NPR-C gene A-55C. Results The results showed that no AA genotype was found; there were 25 cases of AC genotype，the frequency was 0.25; 75 cases of CC genotype，the frequency was 0.75 in the 100 patients with EP. The frequencies of A allele and Callele were 0.125 and 0.875 respectively. Conclusions The polymorphism of NPR-C gene A-55C in Yunnan Hanpatients with EP is mainly CC genotype，but no AA genotype can be found. CC genotype is associated with the susceptibility to hypertension. [ABSTRACT FROM AUTHOR]

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.)

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.)

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.)

Copyright of Chinese Journal of Contemporary Pediatrics is the property of Xiangya Medical Periodical Press 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 Agro-Environment Science is the property of Journal of Agro-Environment Science 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.)

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 explore the changes of cellular immune function in chronic obstructive pulmonary disease patients with infection， and to provide a theoretical basis for COPD patients. Methods Totally 80 patients with COPD complicating infection treated in our hospital from January 2016 to April 2017 were selected as the observation group ， contemporaneous 64 patients with simple COPD were selected as the COPD group and 60 healthy people as the control group . The indexes of cellular immunity functions were analyzed in 3 groups. Results （1） In COPD infection group， the average percentage of peripheral blood NK was 19.86 + 10.67，and lower than the COPD group （26.47±10.05）， the difference was statistically significant （P < 0.01）， higher than that of the control group （16.89±5.07）， but the difference was not statistically significant （P > 0.05） . （2） CD3+ cells in peripheral blood of COPD patients with bacterial infection group， COPD group and healthy control group （total T lymphocyte percentage） were （66.64±11.03）， （64.6±11.45） and （67.06±5.55）， there was no significant difference between the three groups （P > 0.05） . （3） In COPD infection group， the peripheral blood CD4 cells and CD4/CD8 ratio were （40.47±10.44） and 1.82 （1.78，2.57）， higher than the healthy control group[35.01 + 7.16 and 1.19 （0.96，1.66） ]， the level of CD8 cells was （23.6±9.82）， lower than the healthy control group （27.50±5.85）， the differences were statistically significant （P < 0.01）；and COPD group level[（39.89±9.92）， 2.02 （1.44，2.83） ] and （21.12±7.64），there were no statistically significant difference. Conclusions In patients with COPD， the adjuvant immune cell levels are increased but the specific killing immune cells are decreased， on this basis， increased levels of nonspecific killing immune cells help fight infection， immune regulation therapy for COPD patients should focus on improving the level of destruction of immune cells. [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 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.)

Copyright of Journal of Remote Sensing is the property of Editorial Office of Journal of Remote Sensing & Science Publishing Co. 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.)