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Modulation of Soil Particle Size and Nutrient Availability in the Maize Rhizosheath

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Pedosphere 2011年第4期21卷 483-490页

作者： MA Wei li xue-Xian li chun-Jian Department of Plant Nutrition China Agricultural University Beijing 100193 (China)

Root exudates,microorganism colonization and soil aggregates together form the rhizosheath,a special cylinder of micro-ecosystem adhering to the root *** study how the rhizosheath affects soil structure and nutrient distribution,we analyzed the impact of maize rhizosheath on soil particle size and nutrient availability in pot and field *** results showed that there was a significant size decrease of soil particles in the ***,the soil mineral nitrogen in the rhizosheath was significantly higher than that in the rhizosphere or bulk soil at tasseling and maturity stages of *** contents of Fe and Mn were also differentially altered in the *** development,indicated by a dry weight ratio of rhizosheath soil to the root,was relatively independent of root development during the whole experimental *** formation of maize rhizosheath contributed to the modulation of soil particle size and nutrient *** subtle local changes of soil physical and chemical properties may have profound influence on soil formation,rhizospheric ecosystem initiation,and mineral nutrient mobilization over the long history of plant evolution and domestication.

关键词： micronutrient mineral nitrogen mucilage rhizosphere root exudates

Syntheses,Structure and Biological Activities of 2-(1H-Benzo [1,2,3]triazole-1-yl)-1-(3-methyl-4-bromobiphenyl)-2-(1H-1,2,4-triazole-1-yl)ethanone

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Chemical Research in Chinese Universities 2007年第1期23卷 120-122页

作者： ZHANG Shu-sheng WAN Jun li xue-mei li chun-li XU liang-zhong College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 P. R. China

1,2,4-Triazole derivatives represent an interesting class of heterocyclic compounds and have become the most with rapidly expanding group of antifungal compounds the advantages of toxicity, high oral bioavailability, and broad spectrum of activity against several fun- gi, including most yeasts and folanentous fungi . The triazole fungicides are agrochemicals that are used world wide in the agricultural industry because of their wide spectrum of action, A variety of benzotriazoles exhibit growth-inhibiting activities against some microorganisms and other derivatives possessing anti-inflammatory properties.

关键词： Triazole derivative Cyrstal structure Biological activity

Molecular Clouds Associated with HⅡRegions and Candidates within l=106°.65 to 109°.50 and b=-1°.85 to 0°.95

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Research in Astronomy and Astrophysics 2022年第4期22卷 71-105页

作者： chun-xue li Hong-Chi Wang Yue-Hui Ma Miao-Miao Zhang Chong li Yu-Qing Zheng Purple Mountain Observatory and Key Laboratory of Radio Astronomy Chinese Academy of SciencesNanjing 210033China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Key Laboratory of Modern Astronomy and Astrophysics(Nanjing University) Ministry of EducationNanjing 210023China

We present a large-scale simultaneous survey of the CO isotopologues(^(12)CO,^(13)CO,and C^(18)O)J=1-0 line emission toward the Galactic plane region of l=106°.65 to 109°.50 and b=-1°.85 to 0°.95 using the Purple Mountain Observatory 13.7 m millimeter-wavelength *** for the molecular gas in the solar neighborhood,the emission from the molecular gas in this region is concentrated in the velocity range of[-60,-35]km s^(-1).The gas in the region can be divided into four clouds,with mass in the range of~10^(3)-10^(4)M☉.We have identified 25 filaments based on the^(13)CO *** median excitation temperature,length,line mass,line width,and virial parameter of the filaments are 10.89 K,8.49 pc,146.11 M☉pc^(-1),1.01 km s^(-1),and 3.14,*** these filaments,eight have virial parameters of less than 2,suggesting that they are gravitationally bound and can lead to star *** HⅡregions or candidates have previously been found in the region and we investigate the relationships between these HⅡregions/candidates and surrounding molecular clouds in *** morphology similarity and radial velocity consistency between HⅡregions/candidates and molecular clouds as evidence for association,and raised temperature and velocity broadening as signatures of interaction,we propose that 12 HⅡregions/candidates are associated with their surrounding molecular *** the case of the HⅡregion of S142,the energy of the HⅡregion is sufficient to maintain the turbulence in the surrounding molecular gas.

关键词： ISM:molecules ISM:clouds ISM:structure (ISM:)HⅡregions

Abdominal ventral rectopexy with colectomy for obstructed defecation syndrome:An alternative option for selected patients

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World Journal of Clinical Cases 2020年第23期8卷 5976-5987页

作者： li Wang chun-xue li Yue Tian Jing-Wang Ye Fan li Wei-Dong Tong Department of General Surgery Daping HospitalArmy Medical UniversityChongqing 400042China

BACKGROUND Abdominal ventral rectopexy(AVR)with colectomy is controversial in the treatment of obstructed defecation syndrome(ODS).literature data on this technique for ODS are very *** To evaluate the safety and efficacy of AVR with colectomy for selected patients with *** Consecutive patients who underwent AVR with colectomy for ODS were identified prospectively from 2016 to 2017 in our *** demographics,perioperative surgical results,and postoperative follow-up outcomes were collected and ***-term follow-up was evaluated with standardized *** severity of symptoms was assessed by the objective Wexner Constipation Score(WCS)and ODS *** quality of life was assessed by the Patients Assessment of Constipation Quality of life *** outcome was compared pre-and post-operatively for each *** primary outcomes were determined by the improvement in symptoms and quality of *** outcome measures were operating time,postoperative length of stay,morbidity and mortality,improvement of pelvic floor structure,and patient *** Four patients underwent robotic-assisted surgery,and two patients underwent a laparoscopic-assisted *** mean operating time for the robotic approach was 243 min(range 160–300 min),and the mean operating time for the laparoscopic approach was 230 min(range 220-240 min).The mean postoperative length of stay was 8.2 d(range 6-12 d).There was no conversion to open procedure and no postoperative *** urinary retention,wound infection,prolonged ileus,pelvic infection and anastomosis leakage *** patients were followed up for 36 *** WCS,ODS,and Patients Assessment of Constipation Quality of life score improved significantly postoperatively(Plization at 6 to 12 mo after *** was no recurrence or novel constipation after *** of the patients used laxative

关键词： Obstructed defecation syndrome Ventral mesh rectopexy Colectomy Internal rectal prolapse Constipation Laparoscopic resection rectopexy

New observations on the effect of camellia oil on fatty liver disease in rats

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2020年第8期21卷 657-667页

作者： chun-xue li li-rong SHEN Department of Food Science and Nutrition College of Biosystems Engineering and Food ScienceZhejiang Key Laboratory for Agro-Food ProcessingZhejiang UniversityHangzhou 310058China

Camellia oil has become an important plant oil in China in recent years,but its effects on non-alcoholic fatty liver disease(NAFLD)have not been *** this study,the effects of camellia oil,soybean oil,and olive oil on NAFLD were evaluated by analyzing the fatty acid profiles of the plant oils,the serum lipids and lipoproteins of rats fed different oils,and by cytological and ultrastructural observation of the rats’*** of fatty acid profiles showed that the polyunsaturated fatty acid(PUFA)n-6/n-3 ratio was 33.33 in camellia oil,12.50 in olive oil,and 7.69 in soybean *** of serum lipids and lipoproteins of rats showed that the levels of total cholesterol and low-density lipoprotein cholesterol in a camellia oil-fed group(COFG)were lower than those in an olive oil-fed group(OOFG)and higher than those in a soybean oil-fed group(SOFG).However,only the difference in total cholesterol between the COFG and SOFG was statistically *** observation showed that the degree of lipid droplet(LD)accumulation in the hepatocytes in the COFG was lower than that in the OOFG,but higher than that in the *** analysis revealed that the size and number of the LDs in the hepatocytes of rats fed each of the three types of oil were related to the degree of damage to organelles,including the positions of nuclei and the integrity of mitochondria and endoplasmic *** results revealed that the effect of camellia oil on NAFLD in rats was greater than that of soybean oil,but less than that of olive *** the overall trend was that among the three oil diets,those with a lower n-6/n-3 ratio were associated with a lower risk of NAFLD,and the effect of camellia oil on NAFLD was not entirely related to the n-6/n-3 ratio and may have involved other *** provides new insights into the effect of oil diets on NAFLD.

关键词： Camellia oil Fatty acid lipid droplet Hepatocyte ultrastructure Organelle

Fluid simulation of the pulsed bias effect on inductively coupled nitrogen discharges for low-voltage plasma immersion ion implantation

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Chinese Physics B 2017年第1期26卷 290-297页

作者： Xiao-Yan Sun Yu-Ru Zhang xue-chun li You-Nian Wang Key Laboratory of Materials Modification by Laser Ion and Electron Beams （Ministry of Education） School of Physics and Optoelectronic Technology Dalian University of Technology Dalian 116024 China

Planar radio frequency inductively coupled plasmas（ICP） are employed for low-voltage ion implantation processes,with capacitive pulse biasing of the substrate for modulation of the ion energy. In this work, a two-dimensional（2D） selfconsistent fluid model has been employed to investigate the influence of the pulsed bias power on the nitrogen plasmas for various bias voltages and pulse frequencies. The results indicate that the plasma density as well as the inductive power density increase significantly when the bias voltage varies from 0 V to-4000 V, due to the heating of the capacitive field caused by the bias power. The N＋fraction increases rapidly to a maximum at the beginning of the power-on time, and then it decreases and reaches the steady state at the end of the glow period. Moreover, it increases with the bias voltage during the power-on time, whereas the N2-＋ fraction exhibits a reverse behavior. When the pulse frequency increases to 25 kHz and40 kHz, the plasma steady state cannot be obtained, and a rapid decrease of the ion density at the substrate surface at the beginning of the glow period is observed.

关键词： fluid simulation low-voltage plasma immersion ion implantation N2 inductive discharge

Anti-senescence effect and molecular mechanism of the major royal jelly proteins on human embryonic lung fibroblast(HFL-I) cell line

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2018年第12期19卷 960-972页

作者： Chen-min JIANG Xin liU chun-xue li Hao-cheng QIAN Di CHEN Chao-qiang LAI li-rong SHEN College of Biosystems Engineering and Food Science Zhejiang University/Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs/Zhejiang Key Laboratory for Agri-Food ProcessingHangzhou 310058China USDA ARS Nutritional Genomics Laboratory JM-USDA Human Nutrition Research Center on Aging at Tufts UniversityBostonMassachusetts 02111the United States

Royal jelly (R J)from honeybee has been widely used as a health promotion *** major royal jelly proteins (MRJPs)have been identified as the functional component of ***,the question of whether MRJPs have anti-senescence activity for human cells *** embryonic lung fibroblast (HFL-I)cells were cultured in media containing no MRJPs (A),MRJPs at 0.1mg/ml (B),0.2mg/ml (C),or 0.3mg/ml (D),or bovine serum albumin (BSA)at 0.2mg/ml (E).The mean population doubling levels of cells in media B,C,D,and E were increased by 12.4%,31.2%,24.0%,and 10.4%,respectively,compared with that in medium *** cells in medium C also exhibited the highest relative proliferation activity,the lowest senescence,and the longest ***, MRJPs up-regulated the expression of superoxide dismutase-1(SOD1)and down-regulated the expression of mammalian target of rapamycin (MTOR),catenin beta like-1(CTNNB1),and tumor protein p53(TP53).Raman spectra analysis showed that there were two unique bands related to DNA synthesis materials,amide carbonyl group vibrations and aromatic *** results suggest that MRJPs possess anti-senescence activity for the HFL-I cell line,and provide new knowledge illustrating the molecular mechanism of MRJPs as anti-senescence factors.

关键词： Major royal jelly protein Human embryonic lung flbroblast (HFL-I)cell line Anti-senescence Relative proliferation activity Telomere length Molecular mechanism

Effect of noninvasive positive pressure ventilation on weaning success in patients receiving invasive mechanical ventilation： a meta-analysis

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Chinese Medical Journal 2013年第7期126卷 1337-1343页

作者： ZHU Fen liU Zi-long LONG Xuan WU Xiao-dan ZHOU Jing BAI chun-xue li Shan-qun Department of Pulmonary Medicine Center of Snoring and Sleep Apnea Medicine Zhongshan Hospital Fudan University Shanghai 200032 China

Background Noninvasive positive pressure ventilation （NIPPV） has been proposed to shorten the duration of mechanical ventilation in intubated patients, especially those who fail initial weaning from invasive mechanical ventilation （IMV）. However, there are also some discrepancies in terms of weaning success or failure, incidence of re-intubation, complications observed during study and patient outcomes. The primary objective of this update was to specifically investigate the role of NIPPV on facilitating weaning and avoiding re-intubation in patients intubated for different etiologies of acute respiratory failure, by comparing with conventional invasive weaning approach. Methods We searched randomized controlled trials （RCTs） comparing noninvasive weaning of early extubation and immediate application of NIPPV with invasive weaning in intubated patients from PubMed, Embase, Cochrane Central Register of Controlled Trials, Web of Knowledge and Springerlink databases. Records from conference proceedings and reference lists of relevant studies were also identified. Results A total of 11 RCTs with 623 patients were available for the present analysis. Compared with IMV, NIPPV significantly increased weaning success rates （odds ratio （OR）： 2.50, 95% confidence interval （C/）： 1.46-4.30, P=0.0009）, decreased mortality （OR： 0.39, 95% CI： 0.20-0.75, P=0.005）, and reduced the incidence of ventilator associated pneumonia （VAP）（OR： 0.17, 95% CI： 0.08-0.37, P 〈0.00001） and complications （OR： 0.22, 95% CI： 0.07-0.72, P=0.01）. However, effect of NIPPV on re-intubation did not reach statistical difference （OR： 0.61, 95% CI： 0.33-1.11, P=0.11）. Conclusions Early extubation and immediate application of NIPPV is superior to conventional invasive weaning approach in increasing weaning success rates, decreasing the risk of mortality and reducing the incidence of VAP and complications, in patients who need weaning from IMV. However, it should be applied with caution, as there is insufficie

关键词： noninvasive positive pressure ventilation invasive mechanical ventilation weaning meta-analysis

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论张君秋京剧唱腔的创新

艺术百家 2007年第A01期23卷 131-134页

作者：薛丽春连云港师范高等专科学校初等教育系江苏连云港222006

张君秋先生创立的张派唱腔,依据戏剧情节、人物感情和时代要求、观众偏好,创设新的板腔,突破原有板腔,创新板式组合,突出对比手法,加快行腔节奏,吸融其它唱腔,把京剧的唱腔艺术推向了一个前所未及的巅峰。张先生的创腔实践为京剧唱腔的... 详细信息

张君秋先生创立的张派唱腔,依据戏剧情节、人物感情和时代要求、观众偏好,创设新的板腔,突破原有板腔,创新板式组合,突出对比手法,加快行腔节奏,吸融其它唱腔,把京剧的唱腔艺术推向了一个前所未及的巅峰。张先生的创腔实践为京剧唱腔的创新提供了宝贵的启示,那就是要有丰厚的艺术积累、强烈的创新意识和严谨的创作态度。

关键词：张君秋唱腔创新