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A review of soil nematodes as biological indicators for the assessment of soil health

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Frontiers of Agricultural Science and Engineering 2020年第3期7卷 275-281页

作者： Qiaofang LU tongtong liu Nanqi WANG Zhechao DOU Kunguang WANG Yuanmei ZUO College of Resources and Environmental Sciences National Academy of Agriculture Green DevelopmentKey Laboratory of Plant-Soil Interactions(Ministry of Education)China Agricultural UniversityBeijing 100193China

Healthy soils are essential for sustainableagricultural development and soil health requires carefulassessment with increasing societal concern over envir-onmentally friendly agricultural development. Soil healthis the capacity of soil to function within ecologicalboundaries to sustain productivity, maintain environmentalquality, and promote plant and animal health. Physical,chemical and biological indicators are used to evaluate soilhealth;the biological indicators include microbes, proto-zoa and metazoa. Nematodes are the most abundantmetazoa and they vary in their sensitivity to pollutants andenvironmental disturbance. Soil nematode communitiesare useful biological indicators of soil health, withcommunity characteristics such as abundance, diversity,community structure and metabolic footprint all closelycorrelated with the soil environment. The community size,complexity and structure reflect the condition of the *** free-living and plant parasitic nematodes are effec-tive ecological indicators, contributing to nutrient cyclingand having important roles as primary, secondary andtertiary consumers in food webs. Tillage inversion,cropping patterns and nutrient management may havestrong effects on soil nematodes, with changes in soilnematode communities reflecting soil disturbance. Somefree-living nematodes serve as biological models to testsoil condition in the laboratory and because of theseadvantages soil nematodes are increasingly being used asbiological indicators of soil health.

关键词： biological indicators community characteristics soil health soil nematodes

老年慢性病病人在线健康信息寻求行为研究进展

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护理研究 2024年第8期38卷 1365-1370页

作者：陈圣光祁玲霞刘桐桐商思懿尹金瑜宋利汪妤婕张庆华湖州师范学院浙江313000 湖州市重大慢性疾病精准防控重点实验室

综述老年慢性病病人在线健康信息寻求行为的评估工具、影响因素及干预措施,以期为制定老年慢性病病人在线健康信息寻求行为的干预策略提供科学依据。

关键词：老年人慢性病在线健康信息寻求行为综述

Life Table of Natural Population of Gastrolina depressa

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Plant Diseases and Pests 2020年第3期11卷 6-7,10页

作者： liu tongtong Guizhou Academy of Forestry Guiyang 550005China

[Objective]The paper was to understand the population development regularity of Gastrolina depressa in natural environment in Guizhou Province.[Method]The population dynamics of *** was studied by establishing life table of natural population of *** via field observation and calculating dynamic trend index of population.[Result]The mortality rates in egg stage,pupal stage and adult stage accounted for 26.42%,10.96%and 8.22%of the total mortality rate,*** mortality rate in larval stage was the highest,accounting for 54.40%of the total mortality rate,higher than the total mortality rate in the other three *** population dynamic trend index I=9.25,I>1 indicated that the population showed an upward trend.[Conclusion]Under the natural conditions,the population of *** shows upward trend,and human intervention is needed to control the *** larval stage is the weak stage of the insect,which is the best time to control the insect.

关键词： Gastrolina depressa Life table of natural population

仿真与建模技术在美军卫勤人员培训中的应用及对我军的启示

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海军医学杂志 2024年第3期45卷 256-259页

作者：于伯洋沈港旋刘同同张鹭鹭李钢北部战区总医院卫勤部辽宁沈阳110016 海军军医大学海军特色医学中心医研部联勤保障部队第九六九医院卫勤处海军军医大学卫生勤务学系卫生勤务学教研室

以美军将仿真与建模技术应用于卫勤人员培训的发展历程、标准化建设和经验为启示,探讨我军在构建军事医学仿真培训体系、各类卫勤人员仿真培训体系和多方协作的仿真与建模培训格局等方面的策略、方法,为解决我军现阶段卫勤人员培训存在... 详细信息

以美军将仿真与建模技术应用于卫勤人员培训的发展历程、标准化建设和经验为启示,探讨我军在构建军事医学仿真培训体系、各类卫勤人员仿真培训体系和多方协作的仿真与建模培训格局等方面的策略、方法,为解决我军现阶段卫勤人员培训存在的建设独立分散、训练方法单一、训练器材落后和训练内容局限等问题提供参考和借鉴。

关键词：美军卫勤仿真与建模培训

Quantitative characterization of the brittleness of deep shales by integrating mineral content,elastic parameters,in situ stress conditions and logging analysis

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International Journal of Coal Science & Technology 2024年第1期11卷 167-179页

作者： tongtong Luo Jianguo Wang Li Chen Chaoya Sun Qian liu Fenggang Wang CCDC Geological Exploration&Development Research Institute Chengdu610056SichuanChina China University of Petroleum(Beijing) ChangpingBeijing102249China Exploration and Development Department of Chongqing Shale Gas Exploration and Development Co. Ltd.Chongqing834000China

Deep shale reservoirs(3500–4500 m)exhibit significantly different stress states than moderately deep shale reservoirs(2000–3500 m).As a result,the brittleness response mechanisms of deep shales are also *** is urgent to investigate methods to evaluate the brittleness of deep shales to meet the increasingly urgent needs of deep shale gas *** this paper,the quotient of Young’s modulus divided by Poisson’s ratio based on triaxial compression tests under in situ stress conditions is taken as SSBV(Static Standard Brittleness Value).A new and pragmatic technique is developed to determine the static brittleness index that considers elastic parameters,the mineral content,and the in situ stress conditions(BIEMS).The coefficient of determination between BIEMS and SSBV reaches 0.555 for experimental data and 0.805 for field *** coefficient is higher than that of other brittleness indices when compared to *** can offer detailed insights into shale brittleness under various conditions,including different mineral compositions,depths,and stress *** technique can provide a solid data-based foundation for the selection of‘sweet spots’for single-well engineering and the comparison of the brittleness of shale gas production layers in different areas.

关键词： Deep shale reservoirs Brittleness Pressure effect Evaluation method Longmaxi formation Sichuan Basin

抗阻力运动疗法对高血压病患者血管舒张功能及粥样硬化的作用

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中国临床研究 2024年第6期37卷 866-871页

作者：李云鹏王皓刘桐桐马秋阳杨汉东陈俊湖北医药学院附属国药东风总医院心血管内科湖北十堰442008 十堰国药东风口腔医院湖北十堰442008

目的探讨抗阻力运动疗法对高血压病患者自我管理能力、血管舒张功能与粥样硬化的改善作用。方法将2019年12月到2022年1月于国药东风总医院诊治的160例高血压患者纳入研究,采用随机数字表法将患者分为研究组(n=80)及传统组(n=80)。传统... 详细信息

目的探讨抗阻力运动疗法对高血压病患者自我管理能力、血管舒张功能与粥样硬化的改善作用。方法将2019年12月到2022年1月于国药东风总医院诊治的160例高血压患者纳入研究,采用随机数字表法将患者分为研究组(n=80)及传统组(n=80)。传统组在药物治疗的基础上予常规有氧运动训练,研究组在传统组基础上予抗阻力运动训练,两组患者均予干预3个月,比较并分析训练前后患者血管舒张功能与粥样硬化变化情况。结果研究组和传统组患者训练后的收缩压及舒张压与训练前对比显著下降(P0.05)。结论抗阻力运动可改善高血压患者血管舒张功能与粥样硬化状况,抑制Lp-PLA2和Hcy的表达,持续降低血压,提高患者的自我管理能力。

关键词：抗阻力运动高血压血管舒张功能粥样硬化脂蛋白相关磷脂酶2 同型半胱氨酸

Peer Effects of Internet Business Models:Strategic Drive or Conceptual Catering?

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Frontiers of Business Research in China 2024年第2期18卷 121-152页

作者： ZHANG Xinmin GUO tongtong YANG Daoguang liu Siyi Business School University of International Business and EconomicsBejing 100029China

In recent years,the internet business model has become a popular concept,and has been adopted by an increasing number of traditional ***,the question remains whether this adoption is a strategy-driven decision or a blind follow of ***,this study is conducted on Chinese listed companies from 2007 to 2020 to examine the existence,underlying motives,and economic consequences of peer effects in traditional enterprises adopting internet business *** results show significant peer effects among traditional enterprises adopting internet business *** examination of driving mechanisms reveals that peer effects of internet business models are more significant in enterprises with asset-light structures,higher degrees of virtualization,lower market valuations,and greater financing pressure,supporting the conceptual catering hypothesis rather than the strategic drive *** tests reveal that while adopting internet business models enables enterprises to receive some government subsidy and market reaction in the short term,it only promotes tactical innovation rather than real innovation and does not improve the financial performance of these *** further indicates that peer effects of internet business models are not a strategic drive but rather a matter of conceptual catering.

关键词： internet business model peer effect traditional enterprises strategic drive conceptualcatering

Immunoglobulin superfamily containing leucine-rich repeat(ISLR)negatively regulates osteogenic differentiation through the BMP-Smad signaling pathway

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Genes & Diseases 2024年第4期11卷 138-140页

作者： Lei Xiong Miaomiao Lan Chang liu Lei Li YingYing Yu tongtong Wang Fan liu Kun Wang Jin liu Qingyong Meng State Key Laboratory of Agrobiotechnology College of Biological SciencesChina Agricultural UniversityBeijing 100094China

Osteoporosis(OP)is an aging-associated condition that significantly affects the quality of life in aging humans and has few treatment *** an important marker,recombinant immunoglobulin superfamily containing leucinerich repeat(ISLR)could be used as a gene therapy for *** herein used alkaline phosphatase(ALP)and alizarin red S(ARS)staining to evaluate osteogenic differentiation potential.

关键词： Immunoglobulin alkaline herein

Ca and Sr co-doping induced oxygen vacancies in 3DOM La_(2-x)Sr_(x)Ce_(2-y)CayO_(7-δ)catalysts for boosting low-temperature oxidative coupling of methane

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Journal of Energy Chemistry 2024年第4期91卷 331-344页

作者： tongtong Wu Yuechang Wei Jing Xiong Yitao Yang Zhenpeng Wang Dawei Han Zhen Zhao Jian liu State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing 102249China Key Laboratory of Optical Detection Technology for Oil and Gas China University of PetroleumBeijing 102249China

It is urgent to develop catalysts with application potential for oxidative coupling of methane(OCM)at relatively lower ***,three-dimensional ordered macro porous(3 DOM)La_(2-x)Sr_(x)Ce_(2-y)CayO_(7-δ)(A_(2)B_(2)O_(7)-type)catalysts with disordered defective cubic fluorite phased structure were successfully prepared by a colloidal crystal template method.3DOM structure promotes the accessibility of the gaseous reactants(O2and CH4)to the active *** co-doping of Ca and Sr ions in La_(2-x)Sr_(x)Ce_(2-y)CayO_(7-δ)catalysts improved the formation of oxygen vacancies,thereby leading to increased density of surface-active oxygen species(O_(2)^(-))for the activation of CH4and the formation of C2products(C2H6and C2H4).3DOM La_(2-x)Sr_(x)Ce_(2-y)CayO_(7-δ)catalysts exhibit high catalytic activity for OCM at low temperature.3DOM La1.7Sr0.3Ce1.7Ca0.3O7-δcatalyst with the highest density of O_(2)^(-)species exhibited the highest catalytic activity for low-temperature OCM,i.e.,its CH4conversion,selectivity and yield of C2products at 650℃are 32.2%,66.1%and 21.3%,*** mechanism was proposed that the increase in surface oxygen vacancies induced by the co-doping of Ca and Sr ions boosts the key step of C-H bond breaking and C-C bond coupling in catalyzing low-temperature *** is meaningful for the development of the low-temperature and high-efficient catalysts for OCM reaction in practical application.

关键词： 3DOM catalysts Ca ions Sr ions Low-temperature oxidative couplingof methane Oxygen vacancies O_(2)^(-) species