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Increase in yield and nitrogen use efficiency of double rice with long-term application of controlled-release urea

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Journal of Integrative Agriculture 2022年第7期21卷 2106-2118页

作者： TIAN Chang SUN Ming-xue zhou xuan LI Juan XIE Gui-xian YANG Xiang-dong PENG Jian-wei College of Resources and Environment Hunan Agricultural University/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer ResourcesChangsha 410128P.R.China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences/Key Laboratory of Plant Nutrition and FertilizerMinistry of Agriculture and Rural AffairsBeijing 100081P.R.China Institute of Soil and Fertilizer Hunan Academy of Agricultural SciencesChangsha 410125P.R.China

Controlled-release urea(CRU)has better characteristics than conventional urea for synchronizing nitrogen(N)release with plant *** the effects of CRU on crop yield and N use efficiency(NUE)has long been the key to evaluate the performance of CRU.A long-term experiment over five consecutive years was conducted in Changsha,Hunan Province,China,to investigate the effects of polyethylene-coated urea with a 90-d release period on the yield and NUE of double rice(early and late crops are grown in the same year),the amount of residual soil mineral N and the soil–plant N balance,as well as on the economic *** N fertilizer treatments including CK(no N fertilizer),U(conventional urea),CRU1(polyethylene-coated urea with equal N application rate to U)and CRU2(20%reduction in N application rate of CRU1)were *** results indicated that CRU1 application increased the yield and NUE of double rice by 11.0 and 13.5%,respectively,compared with *** yield and NUE of late rice were found than in early rice in CRU *** with conventional U,the yield and NUE of early rice in the CRU1 treatment were increased by 6.0 and 10.2%,respectively,and those of late rice were increased by 15.4 and 13.8%,*** was no significant difference between CRU1 and CRU2 in double rice ***,CRU treatments(including CRU1 and CRU2)had higher apparent residual Nmin rate(ARNR)and apparent N recovery rate(ANRR),but lower apparent N loss(NS)than the conventional U *** of NH_(4)^(+)-N and NO_(3)^(-)-N were greater in the surface soil(0–20 cm)and lower in the deeper soil layer(40–60 cm)with CRU treatments than in the U treatment after ***,CRU application produced a greater economic benefit than conventional U *** general,CRU outperformed U fertilizer in terms of rice yield,NUE,soil–plant N balance,economic benefit,and CRU2 provided greater comprehensive benefits than *** is suggested that C

关键词： controlled-release urea rice yield nitrogen use efficiency

Response of soil bacterial community to biochar application in a boreal pine forest

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Journal of Forestry Research 2023年第3期34卷 749-759页

作者： Yan Ge Xiao-li Li Marjo Palviainen xuan zhou Jussi Heinonsalo Frank Berninger Jukka Pumpanen Kajar Köster Hui Sun Collaborative Innovation Center of Sustainable Forestry in Southern China College of ForestryNanjing Forestry UniversityNanjing 210037China Department of Forest Sciences University of HelsinkiLatokartanonkaari 7P.O.Box 2700014 HelsinkiFinland Department of Environmental and Biological Sciences University of Eastern FinlandYliopistonranta 1 EP.O.Box 162770211 KuopioFinland

Boreal forests commonly suff er from nitrogen defi ciency due to low rate of nitrogen *** may promote soil organic matter decomposition and accelerate nitrogen *** this study,Illumina NovaSeq sequencing combined with functional annotation of prokaryotic taxa(FAPROTAX)analysis was used to investigate the eff ect of biochar pyrolysis temperatures,the amount of applied biochar,and the period since the biochar application(2-and 3-year)on soil bacterial *** results show that biochar pyrolysis temperatures(500℃ and 650℃)and the amount of applied biochar(0.5 kg m^(−2)and 1.0 kg m^(−2))did not change soil ***,the interaction of biochar pyrolysis temperature and the amount had signifi cant eff ects on bacterial species richness and evenness(P<0.05).The application of biochar produced at 500℃ had a lower abundance of Actinobacteria and Verrucomicrobia,while that produced at 650℃ had a higher abundance of Conexibacter and *** biochar produced at 650℃ was applied,applying 0.5 kg m^(−2)had a higher abundance of Cyanobacteria,Conexibacter,and Phenylobacterium than that of 1.0 kg m^(−2)(P<0.05).Functionally,the abundance of the aromatic compound degradation group increased with the extension of application time and increase of pyrolysis *** time since application played an important role in the formation of soil bacterial communities and their functional ***-term studies are necessary to understand the consequence of biochar on bacterial communities in boreal forests.

关键词： Biochar application Bacterial communities Community function Boreal pine forests

年龄≤30岁慢性HBV感染者启动抗病毒治疗无创预测模型的构建及分析

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临床肝胆病杂志 2024年第7期40卷 1328-1333页

作者：赖长祥唐情容张秀连唐奇远李知玉周旋冼文杰陈瑞坤吴晓娟王方深圳市第三人民医院·南方科技大学附属第二医院肝病医学中心感染性疾病国家重点学科广东深圳518116 长沙市第一医院感染科长沙410000

目的通过构建无创模型预测年龄≤30岁的慢性HBV感染者是否需要抗病毒治疗,并验证其诊断价值。方法回顾性分析2017年1月—2023年1月深圳市第三人民医院收治的175例符合纳入标准的慢性HBV感染者的临床资料,根据肝穿刺病理结果,将患者分为... 详细信息

目的通过构建无创模型预测年龄≤30岁的慢性HBV感染者是否需要抗病毒治疗,并验证其诊断价值。方法回顾性分析2017年1月—2023年1月深圳市第三人民医院收治的175例符合纳入标准的慢性HBV感染者的临床资料,根据肝穿刺病理结果,将患者分为治疗组(有抗病毒治疗指征,n=41)和观察组(无抗病毒治疗指征,n=134)。分析两组患者的临床资料、影像学检查、血清生化学等指标,通过单因素及多因素Logistic回归分析影响患者具有抗病毒治疗指征的参数,通过相关参数构建不同的预测需要抗病毒治疗的模型,采用受试者工作特征曲线(ROC曲线)比较不同模型的诊断价值。符合正态分布的计量资料组间比较采用成组t检验;不符合正态分布的计量资料组间比较采用Mann-Whitney U秩和检验。计数资料组间比较采用χ^(2)检验或Fisher检验。结果治疗组和观察组两组间ALT、铁蛋白、总胆固醇(CHOL)、TG、PLT、肝硬度(STE)、Ⅲ型前胶原N末端肽(PⅢP)比较,差异均有统计学意义(P值均<0.05)。多因素Logistic回归分析显示,CHOL(OR=0.4,95%CI:0.2~1.0)、STE(OR=1.5,95%CI:1.0~2.1)、PⅢP(OR=1.1,95%CI:1.0~1.1)是具有抗病毒治疗指征的独立预测因子。模型1(STE+PⅢP+CHOL)、模型2(STE+PⅢP)、模型3(STE+CHOL)、模型4(PⅢP+CHOL)及STE、PⅢP、CHOL的ROC曲线下面积分别为0.908、0.848、0.725、0.725、0.836、0.725、0.634,模型1 ROC曲线下面积最大,特异度为77.34%,敏感度为96.36%,与STE、PⅢP、CHOL及模型2、模型3、模型4比较,差异均有统计学意义(Z值分别为0.21、3.08、3.06、3.23、0.89、0.88,P值均<0.05)。结论通过由CHOL、STE、PⅢP指标构建的无创模型对年龄≤30岁的慢性HBV感染者是否需要抗病毒治疗有较好的预测价值。

关键词：乙型肝炎病毒预测年龄分布

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铵伊利石的矿物学特征及热稳定性

地球科学与环境学报 2024年第2期46卷 229-239页

作者：何妮李尚颖梁绍暹周轩平武振晓赵昊汪洋程宏飞长安大学地球科学与资源学院陕西西安710054 长安大学土地工程学院陕西西安710054 西安科技大学地质与环境学院陕西西安710054

伊利石是地壳中常见的层状硅酸盐矿物。当NH_(4)^(+)赋存在伊利石层间时,可形成铵伊利石。探明铵伊利石的矿物学特征和层间NH_(4)^(+)的热稳定性可为理解氮(N)的地球化学循环提供重要依据。通过多种谱学、电子显微学和热分析手段,并以... 详细信息

伊利石是地壳中常见的层状硅酸盐矿物。当NH_(4)^(+)赋存在伊利石层间时,可形成铵伊利石。探明铵伊利石的矿物学特征和层间NH_(4)^(+)的热稳定性可为理解氮(N)的地球化学循环提供重要依据。通过多种谱学、电子显微学和热分析手段,并以伊利石(层间阳离子为K^(+))为参照,对山西省阳泉市新景矿煤层夹矸中铵伊利石的矿物学特征和热稳定性进行研究。结果表明:铵伊利石中NH_(4)^(+)占层间阳离子总数的比例约为0.86,铵伊利石的基面间距(10.344)明显大于伊利石(9.973);同时,铵伊利石的(002)∶(003)衍射峰强度比值约为1∶1,而伊利石的相应衍射峰强度比值约为1∶3;铵伊利石四面体中广泛存在Al^(3+)对Si^(4+)的类质同象置换(Al^(3+)→Si^(4+)),其层电荷密度约为0.85;层间NH_(4)^(+)的存在未对伊利石的层状硅酸盐结构骨架造成明显影响,但可引起结构羟基蓝移;铵伊利石层间的NH_(4)^(+)表现出良好的热稳定性;在400℃~700℃温度范围内,NH+4随结构羟基的脱失而逐渐分解,这暗示在受热过程中层间NH_(4)^(+)与结构羟基发生反应,产物为NH_(3)和H_(2)O。

关键词：铵伊利石层间矿物结构谱学特征热稳定性载氮矿物氮循环

Inhibition of cathepsin B protects pancreatic acinar cells against apoptosis in early pancreatic trauma in rats

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Emergency and Critical Care Medicine 2022年第1期2卷 7-11页

作者： Cong Feng Lili Wang Jingyang Peng Xiang Cui xuan zhou Department of Emergency First Medical Center of Chinese PLA General HospitalBeijingChina Department of General Medicine First Medical Center of Chinese PLA General HospitalBeijingChina Department of Radiology First Medical CenterGeneral Hospital of the PLABeijingChina Department of Orthopedics Fourth Medical CenterGeneral Hospital of the PLABeijingChina Department of Emergency Hainan Hospital of Chinese PLA General HospitalSanyaChina

Objectives:To observe the protective effect of cathepsin B inhibition against apoptosis of acinar cells in the early management of pancreatic contusion and laceration in rats,which would provide evidence of a potential early therapeutic for pancreatic contusion and ***:Twenty-four rats were assigned to 2 groups:1)Model(n=12)with an induced pancreatic injury of severity I-II and 2)CA074-V(n=12):an induced pancreatic injury,severity I-II treated with the cathepsin B inhibitor CA074-me(0.01mg/g)by intravenous administration through the caudal vein at 5minutes post model *** mice in these two groups were further randomly divided into 4 subgroups containing 3 rats each that were sacrificed for quantitation of apoptosis,immunohistochemistry of cathepsin B,and serum amylase and lipase measurements at different time points after model establishment(0,3,6,and 12hours).Results:The percentage of apoptotic pancreatic acinar cells collected from the injured tissues were much lower in the CA074-V group than the Model group at 3hours[9.25±3.94%vs.64.76±26.47%,P<0.10]and 6hours[14.71±8.22%vs.66.60±13.54%,P<0.10]post model *** percentage of cathepsin B-positive pancreatic acinar cells were much lower in the CA074-V group than in the Model group at 3hours[31.07±12.02%vs.69.16±5.71%,P<0.10],6hours[24.84±0.93%vs.47.06±0.91%,P<0.10],and 12hours[28.33±9.14%vs.52.72±1.25%,P<0.10]post model ***:Early cathepsin B inhibition effectively blocked acinar cell apoptosis in an experimental rat model of pancreatic contusion and laceration.

关键词： Acinar cell Apoptosis Cathepsin B inhibition Pancreatic contusion and laceration

Health care worker occupational experiences during the COVID-19 outbreak:A cross-sectional study

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World Journal of Clinical Cases 2022年第16期10卷 5275-5286页

作者： Xiao-Fang Li xuan-Lin zhou Sheng-Xiu Zhao Yue-Mei Li Shi-Qin Pan Department of Nursing Qinghai Provincial People’s HospitalXining 810007Qinghai ProvinceChina Department of Neurosurgery Qinghai Provincial People’s HospitalXining 810007Qinghai ProvinceChina

BACKGROUND Health care workers treating coronavirus disease 2019(COVID-19)patients experience burnout and stress due to overwork and poor working *** To investigate the work experiences of frontline health care workers in Wuhan city and Qinghai province,China,during the COVID-19 *** In this cross-sectional descriptive study,a self-reported questionnaire was designed to evaluate work experiences of medical staff throughout the course of the COVID-19 pandemic.A total of 178 health care workers responded to the questionnaire between February 19 and 29,*** questionnaire dimensional score confirmed dimensional *** Of all dimensions evaluated by this questionnaire,the occupational value dimension had the highest mean score of 2.61(0.59),followed by the support/security dimension score of 2.30(0.74).Occupational protection scored lowest at 1.44(0.75),followed by work environment at 1.97(0.81).The social relationships dimension had an intermediate score of 2.06(0.80).Significant differences in working conditions were observed across hospital departments,with the fever ward scoring *** scores also differed significantly across workplaces;the fever outpatient department scored lowest(P<0.01).This phenomenon was likely due to the fact that work in the fever outpatient department,where many patients present to hospital,necessitates constant contact with a large number of individuals with insufficient provision of resources(such as protective equipment and social support).Medical workers in the fever outpatient department were burdened with a fear of COVID-19 infection and a lower sense of professional value as compared to workers in other hospital *** staff in Wuhan worked longer hours(P<0.01)as compared to *** mean support/security dimension score was higher for tertiary hospital as compared to secondary hospital medical staff as well as for Wuhan area as compared to Qinghai region staff(P<0.01).S

关键词： Novel coronavirus COVID-19 Health care worker Occupational exposure Personal protective equipment

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卵子冷冻在女性生育力保存中价值的研究进展

同济大学学报（医学版） 2024年第1期45卷 152-157页

作者：周璇郭莎娜陈其臻梁家琪李澳王炎秋同济大学附属同济医院生殖医学中心上海200065

近年来,女性生育力保存的需求日益增加,目前主要使用的生育力保存方案是卵子、胚胎的玻璃化冷冻等辅助生殖技术。然而较之新鲜卵子、胚胎,玻璃化冷冻保存的卵子临床妊娠结局仍较低。因此,本文拟对冷冻保存对卵子产生的影响及可能机制进... 详细信息

近年来,女性生育力保存的需求日益增加,目前主要使用的生育力保存方案是卵子、胚胎的玻璃化冷冻等辅助生殖技术。然而较之新鲜卵子、胚胎,玻璃化冷冻保存的卵子临床妊娠结局仍较低。因此,本文拟对冷冻保存对卵子产生的影响及可能机制进行综述,以期探讨如何减少冷冻保存对卵子的影响,使有生育力保存需求的女性获得更满意的生活质量。

关键词：冷冻保存卵子冷冻女性生育力保存

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小样本机器学习的激光传输效能评估方法

陆军工程大学学报 2024年第3期3卷 36-42页

作者：冷坤杨云涛黄雁华周璇武文远陆军工程大学江苏南京211101

为解决激光大气传输外场试验数据集中特征量不足的小样本问题,通过多层相位屏算法构建了激光大气传输模型,获取了4000多组仿真数据,与332组近红外激光大气传输外场试验数据组成机器学习训练数据集。将大气参数、传输距离等作为输入项,4... 详细信息

为解决激光大气传输外场试验数据集中特征量不足的小样本问题,通过多层相位屏算法构建了激光大气传输模型,获取了4000多组仿真数据,与332组近红外激光大气传输外场试验数据组成机器学习训练数据集。将大气参数、传输距离等作为输入项,4种到靶光斑的光场评价因子作为输出项,利用随机森林算法训练光场评价因子预测模型,实现激光大气传输效能评估,并利用202组实测外场数据对模型有效性进行验证。研究结果表明,随机森林算法构建的模型R2系数在0.89以上,可以较好地拟合输入与输出之间的多元回归关系;模型预测结果与真实试验结果的平均相对误差在10%以下,预测精度较高。研究结果可为机器学习算法在激光传输效能评估中的应用提供一定的科学依据,为激光大气传输效能评估提供一定的技术支撑。

关键词：激光大气传输效能评估随机森林算法小样本机器学习

Can acupuncture enhance therapeutic effectiveness of antidepressants and reduce adverse drug reactions in patients with depression? A systematic review and meta-analysis

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Journal of Integrative Medicine 2022年第4期20卷 305-320页

作者： Ming-min Xu Pei Guo Qing-yu Ma xuan zhou Yu-long Wei Lu Wang Yue Chen Yu Guo School of Traditional Chinese Medicine Jinan UniversityGuangzhou 510632Guangdong ProvinceChina Acupuncture and Tuina School/Third Teaching Hospital Chengdu University of Traditional Chinese MedicineChengdu 610075Sichuan ProvinceChina School of Medicine Chengdu University of Traditional Chinese MedicineChengdu 610075Sichuan ProvinceChina Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine Formula-Pattern Research CenterJinan UniversityGuangzhou 510632Guangdong ProvinceChina School of Acupuncture-Moxibustion and Tuina Beijing University of Chinese MedicineBeijing 100029China

Background: Some depressed patients receive acupuncture as an adjunct to their conventional ***: This review aims to provide evidence on whether acupuncture can enhance the therapeutic effectiveness of antidepressants for treating depression, and explore whether acupuncture can reduce the adverse reactions associated with *** strategy: English and Chinese databases were searched for randomized controlled trials(RCTs)published until December 1, *** criteria: RCTs with a modified Jadad scale score ≥ 4 were included if they compared a group of participants with depression that received acupuncture combined with antidepressants with a control group that received antidepressants *** extraction and analysis: Meta-analysis was performed, and statistical heterogeneity was assessed based on Cochran’s Q statistic and its related P-value. Primary outcomes were the reduction in the severity of depression and adverse reactions associated with antidepressants, while secondary outcomes included remission rate, treatment response, social functioning, and change in antidepressant *** Grading of Recommendations Assessment, Development and Evaluation(GRADE) framework was used to evaluate the overall quality of evidence in the included ***: This review included 16 studies(with a total of 1958 participants). Most studies were at high risk of performance bias and at low or unclear risk of selection bias, detection bias, attrition bias, reporting bias, and other bias. Analysis of the 16 RCTs showed that, compared with antidepressants alone, acupuncture along with antidepressants reduced the Hamilton Depression Rating Scale-17(HAMD-17) scores(standard mean difference [SMD]-0.44, 95% confidence interval [CI]-0.55 to-0.33, P < 0.01;I^(2)= 14%), Self-rating Depression Scale(SDS) scores(SMD-0.53, 95% CI-0.84 to-0.23, P < 0.01;I^(2)= 79%), and the Side Effect Rating Scale(SERS) scores(SMD-1.11, 95% CI-1.56 to-0.66, P < 0.01

关键词： Depression Acupuncture plus antidepressants Therapeutic effectiveness Adverse drug reactions Systematic review Meta-analysis