检索结果-南通市图书馆

Effects of 42-year long-term fertilizer management on soil phosphorus availability, fractionation,adsorption–desorption isotherm and plant uptake in flooded tropical rice

引用

The Crop Journal 2015年第5期3卷 387-395页

作者： Pratap Bhattacharyya Amaresh Kumar Nayak Mohammad Shahid Rahul Tripathi Sangita Mohanty Anjani Kumar Rajagounder Raja Bipin Bihari Panda Banwari Lal Priyanka Gautam Chinmaya Kumar Swain Koushik Singha Roy Pradeep Kumar Dash Division of Crop Production Central Rice Research Institute

Soil phosphorus(P) fractionation, adsorption, and desorption isotherm, and rice yield and P uptake were investigated in flooded tropical rice(Oryza sativa L.) following 42-year fertilizer and manure application. The treatments included low-input [unfertilized control without N, P, or K(C0N0)], farmyard manure(FYM)(C1N0), NP(C0NP), NPK(C0NPK), FYM + NP(C1NP), and high-input treatment, FYM + NPK(C1NPK). Grain yield was increased significantly by 74%over the control under the combined application of FYM + NPK. However, under low- and high-input treatments, yield as well as P uptake was maintained at constant levels for 35 *** the same period, high yield levels and P uptake were maintained under the C0 NP, C0 NPK,and C1 NPK treatments. These are unique characteristics of a tropical flooded ecosystem, which is a self-sustaining system for rice production. The Fe–P fraction was highest compared to the Ca–P and Al–P fractions after 42 years of fertilizer application and was significantly higher under FYM + NPK treatment. The P adsorption capacity of soil was highest under the low-input treatment and lowest under long-term balanced fertilization(FYM + NPK). In contrast, P desorption capacity was highest under NPK and lowest in the control treatment. Long-term balanced fertilization in the form of FYM + NPK for 42 years lowered the bonding energy and adsorption capacity for P in soil but increased its desorption potential, increasing P availability to the plant and leading to higher P uptake and yield maintenance.

关键词： Long-term fertilization phosphorus adsorption phos

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Maternally expressed gene 3 regulates retinal neovascularization in retinopathy of prematurity

引用

Neural Regeneration Research 2022年第6期17卷 1364-1368页

作者： Yu Di Yue Wang Yue-Xia Wang Xue Wang Yuan Ma Qing-Zhu Nie Department of Ophthalmology Shengjing Hospital of China Medical UniversityShenyangLiaoning ProvinceChina

The mouse model of oxygen induced retinopathy is suitable for the study of various retinal neovascularization diseases,including retinopathy of *** maternally expressed gene 3(MEG3)has been demonstrated to have an inhibitory effect on diabetic *** this study,we investigated the role of MEG3 overexpression in oxygen-induced retinopathy in *** results showed that MEG3 overexpression effectively inhibited the production of retinal neovascularization in oxygen-induced retinopathy *** acts by down-regulating the expression of phosphoinositide 3-kinase,serine/threonine kinase,and vascular endothelial growth factor and pro-inflammatory ***3 overexpression lentivirus has a future as a new method for the clinical treatment of retinopathy of *** animal experiments were approved by the Animal Ethics Committee of Shengjing Hospital of China Medical University,China(approval No.2016PS074K)on February 25,2016.

关键词： long noncoding RNA maternally expressed gene 3 neurodevelopment oxygen-induced retinopathy phos

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

High pt and photon physics with ALICE at LHC

引用

Chinese Physics C 2010年第9期34卷 1383-1386页

作者：周代翠万仁卓毛亚显 Y.Schutz 王梦亮马科王亚平殷中宝蔡勖 Y.Kharlov G.Conesa C.Roy Institute of Particle Physics Huazhong Normal UniversityKey Laboratory of Quark & Lepton Physics (Ministry of Education) Institute Pluridisciplinaire Hubert Curien University of Strasbourg Laboratoire de Physique Subatomique et de Cosmologie CERN Institute for High Energy Physics(Russia)

ALICE,A Large Ion Collider Experiment,is dedicated to study the QCD matter at extreme high temperature and density to understand the Quark Gluon Plasma （QGP） and phase ***-transversemomentum photons and neutral mesons from the initial hard scattering of partons can be measured with ALICE calorimeters,phos （PHOton Spectrometer） and EMCAL （ElectroMagnetic CALorimeter）.Combing the additional central tracking detectors,the γ-jet and π 0-jet measurements thus can be *** measurements offer us a sensitive tomography probe of the hot-dense medium generated in the heavy ion *** this paper,high p T and photon physics is discussed and the ALICE calorimeters capabilities of high-transverse-momentum neutral mesons and γ-jet measurements are presented.

关键词： ALICE experiment phos EMCAL Jet quenching γ-jet measurement

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Photon discrimination simulation with the PCA method

引用

Chinese Physics C 2010年第10期34卷 1632-1635页

作者：周静刘志毅孟秋英周书华 China Institute of Atomic Energy

The shower shape of n, n^-, p, p^-, K^＋, π^＋ and photons, generated by JPCIAE code for 5.5 TeV/A ^208pb＋^208pb collisions, incident on the ALICE photon spectrometer （phos）, is analyzed with the principal component analysis （PCA） method. The efficiency dependence of purity for the photon discrimination is simulated for the deposited energy ranges 0.5-2 GeV, 2-10 GeV, 10-50 GeV and 50-100 GeV. The result shows that in the energy range of 0.5 to 100 GeV, the efficiency of the photon identification can reach 90% with purity of 90%.

关键词： photon discrimination PCA ALICE phos

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于FPGA的光电倍增管APD偏压控制电路设计

引用

核电子学与探测技术 2008年第6期28卷 1219-1222页

作者：王东张凡黄光明周代翠华中师范大学物理科学与技术学院湖北武汉430079

为了减小光子谱仪phos中信号通道增益的离散性,需要调整光电倍增管APD的偏压来补偿系统中的以下几个方面:APD增益的宽离散性、前置放大器增益的离散性和钨酸铅晶体光产额的离散性等。因此,设计了基于FPGA的APD偏压控制电路。该控制电路... 详细信息

为了减小光子谱仪phos中信号通道增益的离散性,需要调整光电倍增管APD的偏压来补偿系统中的以下几个方面:APD增益的宽离散性、前置放大器增益的离散性和钨酸铅晶体光产额的离散性等。因此,设计了基于FPGA的APD偏压控制电路。该控制电路通过FPGA对10-bit DAC进行控制,使输出高压的调节范围达到210V～400V,调节精度达到0.2V/bit。文中具体介绍了APD偏压控制电路的设计思路,给出了测试结果,并对测试结果进行了深入的分析。

关键词： phos APD 偏压控制反馈校验 FPGA

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

盐酸丙卡特罗口服液联合复方异丙托溴铵、布地奈德雾化吸入治疗小儿毛细支气管炎

引用

齐齐哈尔医学院学报 2014年第17期35卷 2539-2540页

作者：厉娜江苏省淮安市楚州医院儿科 223200

目的探讨盐酸丙卡特罗口服液(Procaterol Hydrochloride Oral Solution,phos)联合复方异丙托溴铵(Compound Ipratropium Bromide,CIB)、布地奈德雾化吸入(Budesonide Inhalation,BI)治疗小儿毛细支气管炎(Children With Bronchiolitis,CWB)的临床效果。方法从2011年1月至2014年1月,于我院共有214例患儿被诊断为CWB。以数字法随机分成观察组(107例)和对照组(107例)。对照组所有患儿给予CIB、BI,观察组所有患儿给予phos联合CIB、BI,两组均治疗7天,7天后对比两组用药临床效果和不良反应出现情况。结果观察组总有效率明显高于对照组,差异有统计学意义(P0.05)。结论 phos联合CIB、BI治疗CWB的临床效果明确,具有起效快,效果好,毒副作用小,用药安全指数高等优点,值得在儿科临床上推广应用。

关键词： phos CIB 布地奈德雾化吸入 CWB

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Regulation of the cell fate by DNA damage and hypoxia

引用

World Journal of Medical Genetics 2013年第4期3卷 34-40页

作者： Ramkumar Rajendran Marija Krstic-Demonacos Constantinos Demonacos International Medical University Bukit JalilKuala Lumpur 57000Malaysia School of Environment and Life Sciences College of Science and TechnologyCockcroft BuildingUniversity of SalfordManchester M5 4WTUnited Kingdom Molecular Pharmacology and Cancer Biology Faculty of Medical and Human SciencesManchester Pharmacy SchoolUniversity of ManchesterManchester M139PTUnited Kingdom

In order to provide the means for the design of novel rational anti-cancer drug therapies research efforts are concentrated on unravelling the molecular circuits which induce programmed cell death and block proliferation of cancer *** therapeutic strategies are based on the understanding of the complexity of physiological functions such as differentiation,development,immune responses,cell-cycle arrest,DNA damage repair,apoptosis,autophagy,energy metabolism,and *** has become evident that this knowledge will provide the means to target the components of the pathways involved in these processes in a specific and selective manner thus paving the way for the development of effective and personalised anti-cancer *** is a crucial cellular process that regulates a multitude of physiological functions,which are essential in disease progression and cellular response to *** factors such as the p53 tumor suppressor and the hypoxia-inducible factor-α(HIF-α) are key players in carcinogenesis and cellular response to cancer *** of these transcription factors regulate gene expression of genes involved in cell death and proliferation,in some cases cooperating towards producing the same outcome and in some others mediating opposing *** is thus apparent that fine tuning of the activity of these transcription factors is essential to determine the cellular response to therapeutic regimens,in other words whether tumor cells will commit to apoptosis or evade engagement with the anti-proliferative effects of drugs leading to drug *** observations support the notion that the functional crosstalk between HIF-1α and p53 pathways and thus the fine tuning of their transcriptional activity is mediated by cofactors shared between the two transcription factors such as components of the p300 co-activator multiprotein *** particular,there is evidence to suggest that differential composition of the co-modula

关键词： Cancer Transcription Apoptosis Inflammation Tumor energy metabolism Glyco lysis Oxidati ve phos phorylatio n p53 Hypoxia-i nduci ble facto r p300/CBP associated factors

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：