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The effects of soil properties, cropping systems and geographic location on soil prokaryotic communities in four maize production regions across China

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Journal of Integrative Agriculture 2022年第7期21卷 2145-2157页

作者： TIAN Xue-liang LIU Jia-jia LIU Quan-cheng xia xin-yao PENG Yong Alejandra I.HUERTA YAN Jian-bing LI Hui LIU Wen-de State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China Henan Engineering Research Center of Biological Pesticide&Fertilizer Development and Synergistic Application Henan Institute of Science and TechnologyXinxiang 453003P.R.China School of Biological Science and Technology University of JinanJinan 250022P.R.China National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070P.R.China Department of Entomology and Plant Pathology North Carolina State UniversityRaleigh 27606USA

The diversity of prokaryotic communities in soil is shaped by both biotic and abiotic ***,little is known about the major factors shaping soil prokaryotic communities at a large scale in *** this end,we undertook a study to investigate the impact of maize production cropping systems,soil properties and geographic location(latitude and longitude)on soil prokaryotic communities using metagenomic techniques,across four distinct maize production regions in *** all study sites,the dominant prokaryotes in soil were Alphaproteobacteria,Gammaproteobacteria,Betaproteobacteria,Gemmatimonadetes,Acidobacteria,and ***-metric multidimensional scaling revealed that prokaryotic communities clustered into the respective maize cropping systems in which they *** analysis(RDA)showed that soil properties especially pH,geographic location and cropping system jointly determined the diversity of the prokaryotic *** functional genes of soil prokaryotes from these samples were chiefly influenced by latitude,soil pH and cropping system,as revealed by RDA *** abundance of genes in some metabolic pathways,such as genes involved in microbe–microbe interactions,degradation of aromatic compounds,carbon fixation pathways in prokaryotes and microbial metabolism were markedly different across the four maize production *** study indicated that the combination of soil pH,cropping system and geographic location significantly influenced the prokaryotic community and the functional genes of these *** work contributes to a deeper understanding of the composition and function of the soil prokaryotic community across large-scale production systems such as maize.

关键词： metagenome cropping system maize soil prokaryotes

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人际自立特质对大学生情绪调节策略作用的纵向研究

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心理科学 2015年第1期38卷 116-122页

作者：夏凌翔高昕夏欣西南大学心理学与社会发展研究中心重庆400715 川北医学院组织部南充637000

虽然不少学者认为人格会影响情绪调节策略的使用,但是目前尚缺乏人格与认知重评、表达抑制这两种情绪调节策略关系的纵向研究。根据人际自立与情绪关系的系列研究,假设人际自立特质会影响情绪调节策略的使用。采用青少年学生人际自立量... 详细信息

虽然不少学者认为人格会影响情绪调节策略的使用,但是目前尚缺乏人格与认知重评、表达抑制这两种情绪调节策略关系的纵向研究。根据人际自立与情绪关系的系列研究,假设人际自立特质会影响情绪调节策略的使用。采用青少年学生人际自立量表和情绪调节问卷对374名大学生进行了间隔6个月的两次调查。结果发现,人际主动、人际灵活显著预测6个月后的认知重评。这提示某些人格特质可以影响特定情绪调节策略的使用。

关键词：人际自立情绪调节纵向研究大学生

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巴塞尔Ⅱ框架下我国商业银行信用风险管理效能

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财经科学 2007年第8期 15-20页

作者：夏馨四川大学经济学院

虽然统计数据显示,2006年我国商业银行不良贷款余额、不良贷款率保持了"双降"的良好势头,但并不能因此而得出我国商业银行信用风险管理已明显改善的乐观结论。本文通过对我国商业银行不良贷款最新数据的因素分析和趋势分析,评价当前我... 详细信息

虽然统计数据显示,2006年我国商业银行不良贷款余额、不良贷款率保持了"双降"的良好势头,但并不能因此而得出我国商业银行信用风险管理已明显改善的乐观结论。本文通过对我国商业银行不良贷款最新数据的因素分析和趋势分析,评价当前我国商业银行的信用风险管理效能,指出导致2006年我国商业银行不良贷款率下降的主要贡献因素并非商业银行自身资产质量的有效提高,因为分析结果表明有85.35%源于贷款规模的扩张。

关键词：商业银行信用风险管理巴塞尔Ⅱ

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REACTION OF FERROCENOYL CHLORIDE WITH [Et_(?)NH] [μ-CO)(μ-RS)Fe_2(CO)_6]COMPLEXES SYNTHESIS AND STRUCTURE OF Fe_2(CO)_6COMPLEXES WITH BRIDGING FERROCENOYL LIGAND

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Chinese Chemical Letters 1993年第11期4卷 1025-1028页

作者： Jin Ting LIU xin SHENG xia ZHONG Department of Chemistry, Shandong University, Jinan, 250100

Reaction of ferrocenoyl chloride with [Et;NH] [（μ-CO）(μ-RS) Fe;=（CO）;] complexes gave bridging ferrocenoyl complexes（μ-FcCO）(μ-RS)Fe;（CO）;（Fc=ferrocenyl, R=Et, i-Pr, n-Bu, t-Bu, Ph）.The structures of all... 详细信息

关键词： Fe COMPLEXES SYNTHESIS AND STRUCTURE OF Fe2 RS)Fe2 Et REACTION OF FERROCENOYL CHLORIDE WITH NH

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Metal-organic frameworks with dinuclear metal centers for synergistically boosting CO2 photoreduction

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Science China Chemistry 2025年第1期68卷 201-208页

作者： Hui-Feng Wang Wen-Jie Shi Yu-xin Yang Bao-xia Dong Tong-Bu Lu Di-Chang Zhong School of Chemistry and Chemical Engineering Yangzhou University Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

Dinuclear metal synergistic catalysis （DMSC） has been proved powerful in boosting CO2reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework （MOF）,obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center （M-In）,three MOFs with dinuclear homometallic catalytic centers （MM-In）,and three MOFs with dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It was found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g-1h-1,which is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO2reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO2reduction.

关键词： metal-organic frameworks dinuclear metal centers synergistic catalysis CO2 reduction photocatalysis

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Minimally invasive lumbar interbody fusion via MAST Quadrant retractor versus open surgery： a prospective randomized clinical trial

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Chinese Medical Journal 2011年第23期124卷 3868-3874页

作者： WANG Hong-li LU Fei-zhou JIANG Jian-yuan MA xin xia xin-lei WANG Li-xun Department of Orthopaedics Huashan Hospital Fudan University Shanghai 200040 China

In recent years, a variety of minimally invasive lumbar surgery techniques have achieved desirable efficacy, but some dispute remains regarding the advantages over open surgery. This study aimed to compare minimally invasive lumbar interbody fusion via MAST Quadrant retractor with open surgery in terms of perioperative factors, postoperative back muscle function, and 24-month postoperative follow-up results. Methods From September 2006 to June 2008, patients with single-level degenerative lumbar spine disease who were not responsive to conservative treatment were enrolled in this study. Patients were randomized to undergo either minimally invasive surgery （MIS, transforaminal lumbar interbody fusion via MAST Quadrant retractor, 41 cases） or open surgery （improved transforaminal lumbar interbody fusion, 38 cases）. Results The MIS group had longer intraoperative fluoroscopy time than the open surgery group, and the open surgery group had significantly increased postoperative drainage volume and significantly prolonged postoperative recovery time compared with the MIS group （P 〈0.05 for all）. MRI scanning showed that the T2 relaxation time in the multifidus muscle was significantly shorter in the MIS group than in the open surgery group at 3 months after surgery （P 〈0.01）. Surface electromyography of the sacrospinalis muscle showed that the average discharge amplitude and frequency were significantly higher in the MIS group than in the open surgery group （P 〈0.01）. The Oswestry disability index and visual analog scale scores were better at 3, 6, 12 and 24 months postoperatively than preoperatively in both groups. Both groups of patients met the imaging convergence criteria at the last follow-up. Conclusions MIS can effectively reduce sacrospinalis muscle injury compared with open surgery, which is conducive to early functional recovery. In the short term, MIS is superior to open surgery, but in the long term there is no significant difference between the two procedures

关键词： lumbar interbody fusion minimally invasive spine surgery MAST Quadrant retractor sacrospinalis muscle injury

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Effect of interrupted endogenous BMP/Smad signaling on growth and steroidogenesis of porcine granulosa cells

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第9期11卷 719-727页

作者： Wei WANG Li WANG xin-xiu LI xia CHEN Hai-yan ZHANG Yu HE Jing-jing WANG Yong-yan ZHAO Bao-le ZHANG Yin-xue XU College of Animal Science and Technology Nanjing Agricultural University Nanjing 210095 China

Bone morphogenetic proteins(BMPs) play a critical role in the growth and steroidogenesis of granulosa cells(GCs).BMP signals act through membrane-bound heteromeric serine/threonine kinase *** ligand binding,BMPs activate intracellular Smad proteins and regulate growth and apoptosis in various cell *** objective of this study was to demonstrate the effects of BMP/Smad signal on growth and steroidogenesis of porcine GCs.A strategy of RNA interference(RNAi)-mediated 'gene silencing' of Smad4,a core molecule mediating the intracellular BMP/Smad signal transduction pathways,was used to interrupt endogenous BMP/Smad *** indicate that Smad4-small interfering RNA(siRNA) caused specific inhibition of Smad4 mRNA and protein expression after *** endogenous BMP/Smad signaling significantly inhibited growth,and induced apoptosis of porcine GCs,while decreasing estradiol *** addition,interrupted BMP/Smad signaling significantly(P<0.05) changed the expression of Cyclin D2,CDK4,Bcl-2,and *** findings provide new insights into how BMP/Smad signaling regulates the growth and steroidogenesis of porcine GCs.

关键词： Porcine granulosa cells Bone morphogenetic protein(BMP)/Smad Smad4 RNA interference(RNAi) Growth Steroidogenesis

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1,25-Dihydroxyvitamin D3 pretreatment enhances the efficacy of allergen immunotherapy in a mouse allergic asthma model

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Chinese Medical Journal 2010年第24期123卷 3591-3596页

作者： MA Jian-xin xia Jun-bo CHENG xiao-ming WANG Chang-zheng Institute of Respiratory Diseases the Second Affiliated Hospital of the Third Military Medical University Chongqing 400037 China

Background Allergen-specific immunotherapy can induce immune tolerance to specific allergens by regulating immune status of individuals. However, its clinical application is limited due to individual differences in efficacy among patients and un-confirmed safety. 1,25 Dihydroxyvitamin D3 （1,25（OH）2D3） has been shown to be involved in a variety of physiological processes, including immune response regulation. In the present study we explored the role of 1,25（OH）2D3 pretreatment for *** Seventy-five BALB/c mice were randomly divided into five groups （15 mice per group）. The mouse allergic asthma model was established by intra-peritoneal injection of ovalbumin （OVA, 10 μg） and aluminium hydroxide （2 mg）as an adjuvant. Intra-peritoneal injection of 50 ng of 1,25（OH）2D3 served as a pretreatment, subcutaneous injection of OVA （100 μg） as an immunotherapy, and 1% OVA inhalation as a challenge. Histopathological analysis was performed on four mice per group. The number of cells and their classification in bronchoalvolar lavage （BAL） fluid were *** of serum OVA-specific immunoglobulin E （slgE） and IFN-Y, IL-4, IL-5 and IL-10 in BAL fluid were measured by *** After 1,25（OH）2D3 pretreatment, immunotherapy could significantly inhibit the infiltration of inflammatory cells into lung tissues and BAL fluid of mice with allergic asthma when compared with un-treated animals （eosinophils：（7.46±1.34）×104/ml vs. （13.41±1.67）×104/ml, P ＜0.05）. In addition, levels of IL-4 （（36.g1±7.87） pg/ml vs. （43.70±6.42）pg/ml, P ＞0.05） and IL-5 （（41.97±7.93） pg/ml vs. （60.14±8.35） pg/ml, P ＜0.05） in BAL fluid and serum slgE （（0.42±0.05）vs. （0.75±0.06） OD units, P ＜0.05） were profoundly reduced. However, the IL-10 level in BAL fluid was significantly increased （（67.74±6.57） pg/ml vs. （44.62±8.81） pg/ml, P ＜0.05）.Conclusions These results indicated that 1,25（OH）2D3 pretreatment enhanced the inhibitory effects of immunotherapy on allergic airway inflammation. In th

关键词： asthma airway inflammation immunotherapy vitamin D3

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Sevoflurane postconditioning protects isolated rat hearts against ischemia-reperfusion injury

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Chinese Medical Journal 2010年第10期123卷 1320-1328页

作者： YAO Yun-tai FANG Neng-xin SHI Chun-xia LI Li-huan Department of Anesthesiology Fuwai Cardiovascular Hospital Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100037 China

Background Studies suggested that anesthetics administered upon the early reperfusion or ＂anesthetic postconditioning＂ could protect post-ischemic hearts against myocardial ischemia reperfusion injury （MIRI）. However, the mechanism responsible for such protection was not well-elucidated. We investigated the cardioprotection induced by sevoflurane postconditioning （SpostC） in rat hearts in vitro, and the respective role of phosphatidylinositol-3-kinase （PI3K）, extracellular signal-regulated kinase 1 and 2 （ERK 1/2）, mitochondrial KATP channels （mitOKAme） and mitochondrial permeability transition pore （mPTP）, by selectively inhibiting PI3K, ERK 1/2, mitOKATP, with LY294002 （LY）, PD98059 （PD）, 5-hydroxydecanoate （5-HD） and by directly opening of mPTP with atractyloside （ATR）, respectively. Methods Isolated rat hearts were randomly assigned to one of the 12 groups （n=-15）： Time control （continuous perfusion）, ISCH （30 minutes of ischemia followed by 60 minutes of reperfusion alone）, SpostC （3% sevoflurane postconditioning was administered during the first 15 minutes of reperfusion after 30 minutes of ischemia）, ISCH＋LY, ISCH＋PD, ISCH＋ATR, ISCH＋5-HD and ISCH＋ dimethyl sulfoxide （DMSO） groups （LY, PD, ATR, 5-HD and DMSO （the vehicle） was administered respectively during the first 15 minutes of reperfusion following test ischemia）, SpostC＋LY, SpostC＋PD, SpostC＋ATR and SpostC＋5-HD groups （LY, PD, ATR and 5-HD was coadministered with 3% sevoflurane, respectively）. Hemodynamics was compared within and between groups. Infarction size was determined at the end of experiments using triphenyltetrazolium chloride （TTC） staining. Lactate dehydrogenase （LDH）, creatine kinase-MB （CK-MB） and cardiac troponin I （cTnl） released from necrotic myocardium, were compared among TC, ISCH and SpostC groups. To investigate the relationships between RISK and mPTP implicated in SpostC, NAD＋ content in myocardium, a marker of mPTP opening, was compared among some experimental groups （TC, ISCH, ISC

关键词： sevoflurane heart ischemia reperfusion

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詹姆斯·奥康纳的生态学社会主义思想评述

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社会主义研究 2007年第6期 21-23页

作者：夏鑫周口师范学院社科部

詹姆斯.奥康纳是美国现代生态学社会主义者。他从分析资本主义生产与生产条件的矛盾入手,深刻揭示了资本主义生产与生态之间的矛盾对抗,指出生态问题的解决依赖于"利润导向型"的资本主义生产方式向"需求导向型"的生态学社会主义生产方式... 详细信息

詹姆斯.奥康纳是美国现代生态学社会主义者。他从分析资本主义生产与生产条件的矛盾入手,深刻揭示了资本主义生产与生态之间的矛盾对抗,指出生态问题的解决依赖于"利润导向型"的资本主义生产方式向"需求导向型"的生态学社会主义生产方式的"转型"。为此他设计了一套生态学社会主义模式,并把实现的希望寄托在围绕生产条件而展开的"新社会运动"的斗争上。奥康纳的生态学社会主义思想中有值得肯定和欣赏的地方,但也存在着很多不足和值得商讨之处。

关键词：奥康纳生态学社会主义

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