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Nature of Soil Acidity in Relation to Properties and Lime Requirement of Some Inceptisols

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Pedosphere 2003年第2期13卷 181-188页

作者： A.k.DOLUI S.BhaTTAChaRJEE Division of Agricultural Chemistry and Soil Science University College of Agriculture Calcutta UniversityDivision of Agricultural Chemistry and Soil Science University College of Agriculture Calcutta University 35 Ballygunge Circular Road Kolkata 700 019 (India) 35 Ballygunge Circular Road Kolkata 700 019 (India)

Some Inceptisols representing the Singla catchment area in karimgaunge district of Assam, India, were studied for lime requirement as influenced by the nature of soil acidity. The electrostatically bonded (EB)-H+ and EB-Al3+ acidities constituted 33 and 67 percent of exchangeable acidity while EB-H+, EB-Al3+,exchangeable and pH-dependent acidities comprised 6, 14, 20 and 80 percent of total potential acidity. The pH-dependent acidity made a major contribution towards the total potential acidity (67%～84%). Grand mean of lime requirement determined by the laboratory incubation method and estimated by the methods of New Woodruff, Woodruff and Peech as expressed in MgCaCO3 ha-1 was in the order: Woodruff (15.6) ＞ New Woodruff (14.9) ＞ Peech (5.1) ＞ incubation (5.0). Correlations analysis among different forms of acidity and lime requirement methods with selected soil properties showed that pH in three media, namely water, 1 mol L-1 kCl and 0.01 mol L-1 CaCl2, had a significant negative correlation with different forms of acidity and lime requirement methods. Exchangeable Fe and Al showed significant positive correlations with EB-Al3+ acidity, exchangeable acidity, pH-dependent acidity and total potential acidity, and also lime requirement methods. Extractable Al showed positive correlations with different forms of acidity except EB-H+ and EB-Al3+ acidities. The lime requirement by different methods depended upon the extractable *** positive correlations existed between lime requirements and different forms of acidity of the soils except EB-H+ acidity and incubation method. The nature of soil acidity was mostly pH-dependent. Statistically, the Woodruff method did slightly better than the New Woodruff, incubation and Peech methods at estimating lime requirement and hence the Woodruff procedure may be recommended for routine soil testing because of its speed and simplicity.

关键词：土壤酸度 PH值新开发土石灰相关性车叶草土壤分析

基于列线图探索脑内皮黏附分子表达水平在结肠癌预后预测中的作用

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中国肿瘤生物治疗杂志 2022年第5期29卷 456-463页

作者：戈雨桐哈文韬魏晓为周琎南京医科大学附属南京医院暨南京市第一医院肿瘤科江苏南京210006 南京医科大学附属南京医院暨南京市第一医院普外科江苏南京210006

目的:探索脑内皮细胞黏附分子(CERCAM)与结肠癌患者预后的关系,利用Cox模型建立具有良好预后判断价值的列线图并予以验证。方法:下载TCGA及GTEx数据库中结肠癌及正常组织中CERCAM表达及患者临床特征数据,收集2013年2月至2019年6月南京... 详细信息

目的:探索脑内皮细胞黏附分子(CERCAM)与结肠癌患者预后的关系,利用Cox模型建立具有良好预后判断价值的列线图并予以验证。方法:下载TCGA及GTEx数据库中结肠癌及正常组织中CERCAM表达及患者临床特征数据,收集2013年2月至2019年6月南京市第一医院收治的4例结肠癌患者的癌及癌旁组织样本进行验证,通过差异分析、通路富集分析以及生存分析等方法探索CERCAM的组织定位、功能及预后价值。通过Cox回归筛选出结肠癌的预后危险因素,基于CERCAM及各危险因素构建列线图,分别使用一致性指数、校准曲线、时间依赖性受试者工作特征(ROC)曲线进行验证与评价,根据危险分层绘制生存曲线。结果:结肠肿瘤组织中CERCAM基因的表达水平显著低于正常组织(Pk-Akt信号通路的活化有关联。Cox分析显示,CERCAM表达水平(HR=2.23,P=0.015)、T分期(HR=5.64,P=0.015)、M分期(HR=2.62,P=0.022)是结肠癌预后的独立危险因素,血管浸润(HR=2.30,P=0.089)是危险因素,利用上述因素建立列线图,一致性指数提示其区分度好,且训练集与测试集一致;校准曲线、ROC曲线同样显示该列线图的预测能力较好。通过危险分层绘制生存曲线,结果提示高风险组有更低的生存率(Pk-Akt信号通路有关联,基于CERCAM建立的列线图优于传统预测模型,对结肠癌患者生存预后的评估具有一定临床价值,这种实用的模型有助于患者风险分层及治疗方案的优化。

关键词：脑内皮细胞黏附分子结肠癌 TCGA数据库列线图预后

A hatching aphidlion-like lacewing larva in 100 million years old kachin amber

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Insect Science 2023年第3期30卷 880-886页

作者： Joachim T.haug kay Lwin Tun Gideon T.haug kyaw Naing Than Carolin haug Marie k.Hornig Biocenter Ludwig-Maximilians-Universitat Munchen(LMU Munich)Planegg-MartinsriedGermany GeoBio-Center at LMU MunchenGermany Department of Zoology University of YangonUniversity Avenue RoadYangonMyanmar Zoological Institute and Museum Cytology and Evolutionary BiologyUniversity of GreifswaldGreifswaldGermany

Dear Editor,hatching is a crucial moment in the life of an *** animal stops being an embryo protected by the egg and becomes a post-embryonic immature(see haug,2020 for difficulties in naming these stages).This must have been the case in the past as well,but the fossil record is rather sparse in the preservation of this very *** fossil preservation of such a case needs to facilitate not only preservation of the animal,but also of the *** these are often of rather different material,making the preservation of both together in many cases ***,there are preservation types that seem to favor such *** has become famous for preserving cases of“frozen behaviour",preserving a specific moment in the life of an animal in an almost life-like manner(Arillo,2007),including:copulations,parasite-host interactions,aggregations,group defense,brood care,egg-laying(although likely stress-induced).

关键词： preserving likely protected

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用于过滤介质的环保型高性能粘合剂

产业用纺织品 2005年第7期23卷 39-44页

作者： Holger künstle Holger Paths Renata klingelhoefer Ronald B.Jones kenneth Fioravanti Jae-ha kim Roger X.Tu Air Products Polymer公司德国 Air Products Polymer L.P. 美国 Air Products Polymer Asia

介绍了APP公司生产的用于过滤介质的环保型高性能粘合剂(AIRFLEXEVCl粘合剂)。该粘合剂可赋予过滤介质必需的性能,还可赋予阻燃性等特殊的性能,符合环保要求和化学品的相关规定,能确保生产过程的安全性和产品的安全性。

关键词：过滤介质粘合剂性能环保

Crop productivity,soil health,and energy dynamics of Indian Himalayan intensified organic maize-based systems

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International Soil and Water Conservation Research 2021年第2期9卷 260-270页

作者： Raghavendra Singh Subhash Babu R.k.Avasthe Gulab Singh Yadav Anup Das k.P.Mohapatra Amit kumar Vinod k.Singh Puran Chandra ICAR-National Organic Farming Research Institute GangtokSikkim737102India Division of Agronomy ICAR-Indian Agricultural Research InstituteNew Delhi110012India ICAR Research Complex for NEH Region Tripura CentreLembucherraTripura799210India ICAR-National Bureau of Plant Genetic Resources New Delhi110012India

The sustainability of prevailing maize-fallow system in rainfed ecosystems of the Eastern Himalayan region(EHR)of India is often questioned due to poor economic return and negative impact on soil ***,the six cropping systems,maize-fallow(M-F),maize t cowpea-rapeseed(M t C-Rs),maize t cowpea-buckwheat(M t C-Bw),maize t cowpea-barley(M t CeB),maize t cowpea-garden pea(M t C-GP)and maize t cowpeaerajmash(M t C-R)in the main plot and three soil moisture conservation measures,no-mulch(NM),maize stover mulch(MSM)and maize stover t weed biomass mulch(MSM t WBM)in sub-plot were evaluated for four consecutive years(2014-18)at a Research Farm in fixed plot *** indicated that cowpea co-culture with maize and inclusion of winter crop increased maize yield by 6.2e23.5%over *** the systems,the M t C-GP recorded the highest crop *** residual effect of MSM t WBM increased maize grain yield by 19.1%over *** of maize t cowpea-winter crops significantly improved the available N(3.2e12.9%),P(3.6 e12.7%),k(1.9e26.3%),organic carbon(9.2e16.8%),microbial biomass carbon-MBC(15.2e43.9%)and dehydrogenases-Dha(17.2e42.3%)in soil at 0e15 cm depth as compared to *** M t C-GP also recorded maximum net return(US$2460 ha1),benefit:cost(B:C)ratio(2.86)and energy use efficiency(7.9%).The MSM t WBM recorded higher net return(US$1680 ha1)and B:C ratio(2.46)over ***,cowpea t maize-garden pea(M t C-GP)along with the application of MSM t WBM is a sustainable production practice to intensify the organically managed maize-fallow system in rainfed regions of the EHR of India and other similar ecosystems.

关键词： Crop intensification Energy productivity Gross return Soil health Water productivity

Carbon stock estimation for tree species of Sem Mukhem sacred forest in Garhwal Himalaya, India

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Journal of Forestry Research 2013年第3期24卷 457-460页

作者： Nazir A. Pala A. k. Negi Yogesh Gokhale Showkat Aziem k. k. Vikrant N. P. Todaria Department of Forestry Dolphin (PG) Institute of Biomedical and Natural SciencesManduwala Dehradun -248007 Uttarakhand India Department of Forestry and Natural Resources P.O. Box-59 Chauras Campus HNB Garhwal University Srinagar GarhwalUttarkhand-246174 India The Energy and Resources Institute (TERI) New Delhi 110003 India Plant physiology division Botany discipline FRI Dehradun248006 India

Carbon stock estimation was conducted in tree species of Sem Mukhem sacred forest in district Tehri of Garhwal Himalaya, Uttara- khand, India. This forest is dedicated to Nagraj Devta and is dominated by tree species, including Quercus floribunda, Quercus semecarpifolia and Rhododendron arboreum. The highest values of below ground bio- mass density, total biomass density and total carbon density were （34.81±1.68） Mg·ha^-1, （168.26±9.04） Mg·ha^-1 and （84.13±4.18） Mg·ha^-1 for Pinus wallichiana. Overall values of total biomass density and total carbon density calculated were 1549.704 Mg·ha^-1 and 774.77 Mg·ha^-1 respectively. Total value of growing stock volume density for all species was 732.56 m3·ha^-1 and ranged from （144.97±11.98） m3·ha^-1 for Pinus wallichiana to （7.78±1.78） m3·ha^-1for Benthamidia capitata.

关键词： carbon management sacred forest biomass density

Complementary effect of zoo compost with mineral nitrogen fertilisation increases wheat yield and nutrition in a low-nutrient soil

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Pedosphere 2022年第2期32卷 339-347页

作者： Muhammad S.A.khaN Lynette k.ABBOTT Zakaria M.SOLAIMAN Peter R.MAWSON Ian S.WAITE Sasha N.JENkINS School of Agriculture and Environment Institute of AgricultureThe University of Western AustraliaPerth WA 6009Australia Perth Zoo Department of BiodiversityConservation and AttractionsPerth WA 6151Australia Agricultural Officer(Headquarters) DirectorateSoil Fertility Research InstituteAgriculture DepartmentGovernment of the PunjabLahore 53700Pakistan

Excess nitrogen(N) fertiliser use in agriculture is associated with water pollution and greenhouse gas *** practices and programs to reduce N fertiliser application continue to be developed,inefficient fertiliser use *** that reduce mineral N fertiliser application are needed in a sustainable agricultural ecosystem to control leaching and gaseous losses for environmental *** study evaluated whether fully or partially replacing mineral N fertiliser with zoo compost(Perth Zoo) could be a good mitigation strategy to reduce mineral N fertiliser application without affecting wheat yield and *** achieve this,a glasshouse experiment was conducted to assess the complementary effect of zoo compost and mineral N fertiliser on wheat yield and nutrition in a sandy soil of southwestern ***,a chlorophyll meter was used to determine whether there was a correlation between chlorophyll content and soil mineral N content,grain N uptake,and grain protein content at the tillering(42 d after sowing(DAS)) and heading(63 DAS) growth *** standard practice for N application for this soil type in this area,100 kg ha^(-1),was used with a soil bulk density of 1.3 g cm^(-3) to calculate the amount of mineral N(urea,46% N) and Perth Zoo compost(ZC)(0.69% N) for each *** comprised a control(no nutrients added,T1),mineral N only(100 kg N ha^(-1),T2),ZC only(100 kg N ha^(-1),T7),and combinations of mineral N and ZC at different rates(mineral N at 100 kg N ha^(-1)+ ZC at 25 kg N ha^(-1)(T3),mineral N at 75 kg N ha^(-1)+ ZC at 25 kg N ha^(-1)(T4),mineral N at 75 kg N ha^(-1)+ ZC at 50 kg N ha^(-1)(T5),and mineral N at 50 kg N ha^(-1)+ ZC at 50 kg N ha^(-1)(T6)).The T6 treatment significantly increased grain yield(by 26%) relative to the T2 ***,the T7 treatment did not affect grain yield when compared to the T2 *** treatments with mineral N and ZC in combination significantly improved the

关键词： chlorophyll meter SPAD measurement integrated nutrient management nitrogen use efficiency reduced N fertiliser application wheat yield

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全息影像打造视频会议新模式

商业周刊（中文版） 2022年第6期 12-12页

作者： k.Oanh ha 汪泽(译) 不详

我们所有人都已经习惯了Zoom视频会议,而谷歌(Google)、微软(Microsoft)等公司和至少六家初创公司正进入下一阶段:全息影像。这项技术已经用于演唱会,呈现图派克·夏库尔(Tupac Shakur),迈克尔·杰克逊(Michael Jackson)、惠特妮·休斯... 详细信息

我们所有人都已经习惯了Zoom视频会议,而谷歌(Google)、微软(Microsoft)等公司和至少六家初创公司正进入下一阶段:全息影像。这项技术已经用于演唱会,呈现图派克·夏库尔(Tupac Shakur),迈克尔·杰克逊(Michael Jackson)、惠特妮·休斯顿(Whitney Houston)等已故歌手的影像,今年春季还呈现了瑞典流行乐队ABBA的几位已经七十多岁的成员。

关键词：视频会议初创公司 Google 谷歌全息影像

烧结方法对CP-Ti粉末烧结块显微组织和力学性能的影响(英文)

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Transactions of Nonferrous Metals Society of China 2014年第S1期24卷 59-67页

作者： Je-ha SHON Jong-moon PARk kyeong-sik CHO Jae-keun HONG Nho-kwang PARk Myung-hoon OH Department of Advanced Materials Engineering Kumoh National Institute of Technology Gumi Gyeongbuk 730-701 Korea Advanced Technology Team Pohang Institute of Metal Industry Advancement Pohang Gyeongbuk 790-834 Korea Titanium Department Korea Institute of Materials Science (KIMS) Changwon Gyeongnam 642-831 Korea

研究不同烧结方法,包括放电等离子体烧结(SPS)、热压(HP)和电阻烧结(ERS),对商用纯钛(CP-Ti)粉末固结后显微组织和力学性能的影响。选用的粉末粒度分别为<147μm,<74μm和<43μm,粉末粒度越小,其致密化过程越快。在850°C、30 MPa条件... 详细信息

研究不同烧结方法,包括放电等离子体烧结(SPS)、热压(HP)和电阻烧结(ERS),对商用纯钛(CP-Ti)粉末固结后显微组织和力学性能的影响。选用的粉末粒度分别为<147μm,<74μm和<43μm,粉末粒度越小,其致密化过程越快。在850°C、30 MPa条件下进行SPS和HP,获得烧结体的相对密度高达99%。而通过ERS,则在950°C、30 MPa条件下才发生CP-Ti粉末的致密化。在850~950°C获得烧结钛的显微组织由等轴晶构成。对于粒度<43μm粉末,在850°C、30 MPa条件下通过SPS制备烧结体,其屈服强度为868 MPa。随着小尺寸颗粒含量的升高,通过SPS和HP制备烧结体的屈服强度得到提高。然而在950°C、30MPa条件下,通过ERS制备样品的最高屈服强度仅为441 MPa,比SPS和HP样品的低。与SPS和HP相比,ERS需要较短的烧结时间,但较高的烧结温度导致材料的脆性断裂,使其强度和伸长率降低。

关键词： CP-Ti粉末烧结方法放电等离子体烧结热压电阻烧结