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The Relationship between Forestland Soil Fertility and Gathering Firewood in the Zhuxi Watershed in the Red Soil Hilly Region of China

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Journal of Mountain Science 2013年第1期10卷 75-83页

作者： chen Zhi-qiang chen Zhi-biao chen hai-bin YUE Hui College of Geographical Sciences Fujian Normal University Soil and Water Conservation Bureau of Changting County

Declining soil fertility has become an increasingly urgent problem and gathering firewood is one of the important contributing *** to the excessive exploitation of natural resources especially for firewood,the red soil hilly region has become one of the most vulnerable eco-environment regions in *** pressure of gathering firewood on forestland soil fertility in forestland has been generally estimated by geographical information system and questionnaire method in this paper in the Zhuxi watershed of Changting County,Fujian Province,China,a typical representative in the red soil hilly region of *** results of this study show that：i） Forestland soil fertility is negatively affected by gathering firewood,which is more intensive in the integrated buffer zone than out of *** forestland soil fertility grade,OM,total N,available N,total P,available P,total K,available K,pH and ＆lt;2μm clay content are lower and bulk density is higher in the integrated buffer zone than those ***） The forestland soil fertility grade,OM,total N,available N,total P,available P,total K,available K,pH and ＆lt;2μm clay content tend to be lower and bulk density tends to be higher in the village buffer zones than those out in Datian,chenguang and Youfang ***） The population density,economic development and terrain might be the key driving forces contributing to the relationship between gathering firewood and forestland soil *** population density leads to more massive firewood collection and imposes more pressure on forestland soil *** the use of firewood stove may reduce firewood consumption and thus release the pressure of gathering firewood on forestland soil *** affects the accessibility to gathering firewood thus affects forestland soil *** driving forces influencing the relationship between gathering firewood and forestland soil fertility should also be taken into account in the further study.

关键词： Gathering firewood Soil fertility Questionnaire method GIS Zhuxi watershed

构建完全腔镜下甲状腺癌根治术后甲状腺乳头状癌复发的超声预测模型

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中国现代普通外科进展 2024年第2期27卷 129-133页

作者：陈海兰黄建新陈薇莆田学院附属医院超声科福建莆田351100

目的:构建完全腔镜下甲状腺癌根治术后甲状腺乳头状癌(PTC)患者复发的超声预测模型。方法:收集2017年2月至2020年3月我院初次行完全腔镜下甲状腺癌根治术的PTC患者264例,根据术后是否复发分为复发组和无复发组。比较两组患者临床资料及... 详细信息

目的:构建完全腔镜下甲状腺癌根治术后甲状腺乳头状癌(PTC)患者复发的超声预测模型。方法:收集2017年2月至2020年3月我院初次行完全腔镜下甲状腺癌根治术的PTC患者264例,根据术后是否复发分为复发组和无复发组。比较两组患者临床资料及结节直径、结节数目、内部回声、微钙化等超声资料。使用单因素、Lasso及Logistic回归模型分析PTC患者术后复发的影响因素,并基于筛选的指标建立列线图模型。结果:与无复发组比较,复发组患者结节直径更大,结节边缘不规则、纵横比>1、微钙化、被膜侵犯比例更高(P10 mm、边缘不规则、纵横比>1、微钙化、被膜侵犯是PTC患者术后复发的独立危险因素(P1、被膜侵犯所构建的列线图模型预测PTC完全腔镜下甲状腺癌根治术后复发的准确性良好,具有一定的临床意义。

关键词：甲状腺乳头状癌高分辨率超声腔镜下根治术预测模型

Analgesic Effect of Sinew Acupuncture for Patients with Soft-Tissue Injuries: A Pilot Trial

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Chinese Journal of Integrative Medicine 2019年第8期25卷 613-616页

作者： chen hai-yong LIU Nong-yu School of Chinese Medicine The University of Hong Kong Hong Kong SARChina The Second School of Clinical Medicine Nanjing University of Traditional Chinese Medicine Nanjing (210023)China

Objective: To investigate the immediate analgesic effect of sinew acupuncture for patients with soft-tissue injuries (STIs). Methods: Two hundreds eligible adult patients suffering from STIs were recruited and received sinew acupuncture with flexible treatment schedules. The number of treatment sessions was pragmatically decided by each patient on the basis of their pain relief. The outcome measurement was the change of pain rating in the Visual Analogue Scale (VAS) during the first 5 sessions. The adverse effect was also observed. Results: Of the 200 patients recruited, 7 were excluded due to incomplete data. In total, 888 sinew acupuncture treatments were administered to patients at 14 injury sites (including head, neck, shoulder, arm, chest, elbow, wrist, hand, waist and hip, knee, thigh, calf, ankle, and foot) where pain was felt. Compared with the baseline, the VAS rating after the first and last treatments were both significantly reduced at all the injury sites (P<0.01). The VAS rating was also significantly reduced after each session of treatment in the first five sessions (P<0.01). No serious adverse effect was observed. Conclusion: Sinew acupuncture had not only an immediate analgesic effect for STIs, but also an accumulated analgesic effect during the first 5 treatment sessions.

关键词： sinew acupuncture soft-tissue injury analgesic effect pain Visual Analogue Scale

Transition to Amplitude Death in Coupled System with Small Number of Nonlinear Oscillators

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Communications in Theoretical Physics 2009年第3期51卷 460-464页

作者： chen hai-Ling YANG Jun-Zhong School of Science Beijing University of Posts and Telecommunications Beijing 100876 China

In this work, we investigate the amplitude death in coupled system with small number of nonlinear oscillators. We show how the transitions to the partial and the complete amplitude deathes happen. We also show that th... 详细信息

关键词： coupled nonlinear oscillators amplitude death phase synchronization

北京市某传染病医院近十年蜱传疾病流行病学及临床特征分析

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中国人兽共患病学报 2024年第4期40卷 315-322页

作者：范子博高旭张媛媛陈志海张伟首都医科大学附属北京地坛医院感染性疾病诊疗中心北京100015 国家传染病医学中心首都医科大学附属北京地坛医院北京100015 传染病溯源预警与智能决策全国重点实验室北京100015 首都医科大学附属北京地坛医院传染病研究所新发突发传染病研究北京市重点实验室北京100015 北京市感染性疾病研究中心北京100015

目的对蜱传疾病患者流行病学资料、临床特征进行分析,以期为蜱传疾病诊治能力提升提供帮助。方法收集北京地坛医院2013年1月至2023年6月收治的蜱传疾病患者资料,对流行病学和临床特征进行分析。结果共纳入32例蜱传疾病患者临床资料,包... 详细信息

目的对蜱传疾病患者流行病学资料、临床特征进行分析,以期为蜱传疾病诊治能力提升提供帮助。方法收集北京地坛医院2013年1月至2023年6月收治的蜱传疾病患者资料,对流行病学和临床特征进行分析。结果共纳入32例蜱传疾病患者临床资料,包括发热伴血小板减少综合征(severe fever with thrombocytopenia syndrome,SFTS)17例,莱姆病5例,立克次体病10例。发病时间集中在每年的5—10月。北京本土病例14例(43.8%),平谷区占比最高(4例,28.6%),外省输入性病例16例(50.0%),境外旅居患病人员2例(6.3%)。病例年龄21~80岁,平均(50.16±14.61)岁。病例数最多的职业为农民(14例,43.8%)。游走性红斑为莱姆病典型皮损特点,发热多见于SFTS及立克次体病患者,以中度发热为主。WBC及NEUT降低多见于SFTS。SFTS及立克次体病均有EOS降低。PLT减少为SFTS典型特征。立克次体病及SFTS患者表现出明显的肝脏损伤,ALT、AST明显升高。SFTS患者存在明显心肌损伤,CK、CK-MB均有升高。CRP升高主要见于立克次体病。PCT升高最常见于立克次体病,其次为SFTS。结论北京地区蜱传疾病存在逐年上升趋势,多有延误诊断,需提升此类疾病的诊断能力,根据流行病学史和蜱传疾病临床特征进行早期识别,及早行病原学检测,从而提高早期诊断率,实现早诊早治。

关键词：蜱传疾病发热伴血小板减少综合征莱姆病立克次体病流行病学临床特征

DELAYED FLOWERING, an Arabidopsis Gene That Acts in the Autonomous Flowering Promotion Pathway and Is Required for Normal Development

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Journal of Integrative Plant Biology 2006年第1期48卷 27-34页

作者： Ming-Jie chen Zheng Yuan hai Huang Key Laboratory of Molecular Genetics Shanghai Institute of Plant Physiology and Ecology Graduate School of the Chinese Academy of Sciences Shanghai 200032 China

The control of flowering time in higher plants is one of the most important physiological processes and is critical for their reproductive success. To investigate the mechanisms controlling flowering time, we screened for Arabidopsis mutants with late-flowering phenotypes. One mutant, designated delayed flowering （dfr） in the Landsberg erecta （Ler） ecotype, was identified with delayed flowering time. Genetic analysis revealed that dfr is a single gene recessive nuclear mutant and the mutation was mapped to a locus tightly linked to UFO on chromosome 1. To our knowledge, no gene regulating flowering time has been reported yet in this region. The dfrmutant plant showed a delayed flowering time under the different growth conditions examined, including long- and short-day photoperiods and gibberellic acid GA3 treatments, suggesting that DFR is a gene involved in the autonomous flowering promotion pathway. The Arabidopsis gene FLOWERING LOCUS C （FLC） plays a central role in repressing flowering and its transcripts are undetectable in wild-type Ler. However, FLCexpression was upregulated in the dfrmutant, suggesting that DFR is a negative regulator of FLC. In addition, the dfr mutant plant displayed altered valve shapes of the silique and the number of trichomes and branches of each trichome were both reduced, indicating that the DRFgene is also required for normal plant development. Moreover, dfr leafy-5 （Ify-5） double mutant plants showed a much later flowering time than either dfr or Ify-5 single mutants, indicating that DFR and LFY act synergistically to promote flowering in Arabidopsis.

关键词： Arabidopsis autonomous pathway dfr, flowering time trichome.

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城市河流水质监测指标间的相关性分析及预测

南通职业大学学报 2024年第2期38卷 94-99页

作者：陈向阳肖巍峰陈海峰南通职业大学建筑工程学院江苏南通226007 南通职业大学药品与环境工程学院江苏南通226007 湖南科技大学地球科学与空间信息工程学院湖南湘潭411201

为快速监测城市河流水质,有效追踪并控制污染源,选用某市4个水质监测站的19期监测数据,分析常规水质指标与核心水质指标间的相关性,揭示其水质状况和月度变化趋势,并使用Mantel检验和信息论模型选择方法确定与核心指标关联度最强的常规... 详细信息

为快速监测城市河流水质,有效追踪并控制污染源,选用某市4个水质监测站的19期监测数据,分析常规水质指标与核心水质指标间的相关性,揭示其水质状况和月度变化趋势,并使用Mantel检验和信息论模型选择方法确定与核心指标关联度最强的常规指标,建立最优回归预测模型。研究发现,不同监测站的相同核心指标与常规指标的关联程度各异;高锰酸盐指数与浊度、总氮与溶解氧、氨氮与电导率、浊度与氯化物总体均呈正相关,且具有小幅波动;五日生化需氧量和总磷与常规指标间无显著相关。分析表明,在全面分析各监测站大量有效数据的基础上,构建相对可靠的总体回归预测模型,所得水质监测分析结果可为制定有效的水质污染防治措施提供决策依据。

关键词：水质监测指标相关性水环境治理城市河流

基于铁蛋白纳米笼构建传感元件及其在食品检测中的研究进展

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食品与发酵工业 2024年第3期50卷 328-335页

作者：韩雪儿谢江虎梦吉马良郭婷张宇昊尚永彪陈海西南大学食品科学学院重庆400715 川渝共建特色食品重庆市重点实验室重庆400715 发光分析和分子传感教育部重点实验室重庆400715

铁蛋白(ferritin)是由24个亚基自组装而成的中空笼形结构蛋白,具有良好的水溶性、稳定性、生物相容性和可逆自组装特性。在生物体内,铁蛋白在铁的吸收、转运、氧化和贮存中扮演重要角色,具有调节体内铁代谢平衡的功能。近年来,由于铁蛋... 详细信息

铁蛋白(ferritin)是由24个亚基自组装而成的中空笼形结构蛋白,具有良好的水溶性、稳定性、生物相容性和可逆自组装特性。在生物体内,铁蛋白在铁的吸收、转运、氧化和贮存中扮演重要角色,具有调节体内铁代谢平衡的功能。近年来,由于铁蛋白具有纳米尺度的笼形结构,而且容易通过化学和生物等方法进行结构改造和修饰,使得其被广泛用于检测传感元件的构建。该文对铁蛋白分子的结构与功能进行简要介绍,总结了铁蛋白在构建检测传感元件中的2种基本策略,并重点回顾了基于铁蛋白传感元件在食品真菌毒素、重金属离子、病毒、过氧化氢等有毒有害物质检测中的研究进展,以期为铁蛋白在食品检测领域的应用提供研究思路。

关键词：铁蛋白传感元件策略食品安全检测

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我国现代物流绿色化发展探析

交通企业管理 2024年第1期39卷 90-93页

作者：陈海燕常连玉交通运输部管理干部学院

2022年我国快递业务量超干亿件,同年的社会物流总额达到347万亿元,同比增长3.4%。随着可持续发展理念的进一步深入,以及碳达峰碳中和国家战略的进一步推动,绿色化已成为物流发展的必然趋势之一。一、绿色物流的内涵及特点1.绿色物流的... 详细信息

2022年我国快递业务量超干亿件,同年的社会物流总额达到347万亿元,同比增长3.4%。随着可持续发展理念的进一步深入,以及碳达峰碳中和国家战略的进一步推动,绿色化已成为物流发展的必然趋势之一。一、绿色物流的内涵及特点1.绿色物流的内涵从广义而言,绿色物流是指在物流发展过程中。

关键词：绿色物流内涵组织模式物流供应链低碳创新物流体系

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