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Optimizing the use of open chambers to measure ammonia volatilization in field plots amended with urea

pedosphere 2021年第2期31卷 243-254页

作者： Márcio R.MARTINS Leonardo F.SARKIS Selenobaldo A.C.SANT’ANNA Camila A.SANTOS Karla E.ARAUjO Ricardo C.SANTOS Ednaldo S.ARAÚjO Bruno j.R.ALVES Claudia p.jANTALIA Robert M.BODDEY Mohammad ZAMAN Segundo URQUIAGA Embrapa Agrobiology Rod.BR 465km 7Seropédica RJ CEP 23891-000(Brazil) Federal Rural University of Rio de janeiro(UFRRj) Rod.BR 465km 7Seropédica RJ CEP 23891-000(Brazil) Agroscope Research Division Agroecology and EnvironmentClimate and Agriculture GroupReckenholzstrasse 191Zurich 8046(Switzerland) Soil and Water Management&Crop Nutrition Joint FAO/IAEA Division of Nuclear Techniques in Food&AgricultureP.O.Box 100Vienna A-1400(Austria)

Measuring ammonia(NH_(3))volatilization from urea-fertilized soils is crucial for evaluation of practices that reduce gaseous nitrogen(N)losses in *** small area of chambers used for NH_(3)volatilization measurements compared with the size of field plots may cause significant errors if inadequate sampling strategies are *** aims were:i)to investigate the effect of using multiple open chambers on the variability in the measurement of NH_(3)volatilization in urea-amended field plots and ii)to define the critical period of NH_(3)-N losses during which the concentration of sampling effort is capable of reducing *** use of only one chamber covering 0.015%of the plot(51.84 m^(2))generates a value of NH_(3)-N loss within an expected margin of error of 30%around the true *** reduce the error margin by half(15%),3–7 chambers were required with a mean of 5 chambers per *** the sampling efforts in the first two weeks after urea application,which is usually the most critical period of N losses and associated errors,represents an efficient strategy to lessen uncertainty in the measurements of NH_(3)*** strategy enhances the power of detection of NH_(3)-N loss abatement in field experiments using chambers.

关键词： chamber method experimental error gas emission low-cost chamber nitrogen cycling nitrogen loss soil variability

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periodic Orbits of the First Kind in the Autonomous Four-body problem with the Case of Collision

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International journal of Astronomy and Astrophysics 2017年第2期7卷 91-111页

作者： M. R. Hassan Md. Aminul Hassan payal singh Vinay Kumar R. R. Thapa Department of Mathematics S. M. College T. M. Bhagalpur University Bhagalpur India GTE Bangalore India Research Scholar T. M. Bhagalpur University Bhagalpur India Department of Mathematics Zakir Hussain College University of Delhi New Delhi India Department of Mathematics P. G. Campus Tribhuvan University Biratnagar Nepal

In this manuscript, the existence of periodic orbits of collision of the first kind has been discussed on the model of Autonomous Four-body problem by the method of analytic continuation given by Giacaglia [1] and Bhatnagar [2] [3]. For the existence of periodic orbits, Duboshin’s criterion [4] has been satisfied and it has been confirmed by analyzing the poincare surfaces of section (pSS) [5]. Also it has been shown that the case of collision given by Levi-Civita [6] [7] is conserved by the method analytic continuation. In all sections of this manuscript, equilateral triangular configuration given by Ceccaroni and Biggs [8] has been considered. In this model, third primary of L4 inferior mass (in comparison of the other primaries) is placed at the equilibrium point of the R3Bp.

关键词： Autonomous Four-Body problem Regularization periodicity poincare Surfaces of Section Collision Orbit Zero Velocity Curves

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脂肪和红细胞膜脂质与由ELOVL4基因突变引起的显性Stargardt黄斑营养不良病情严重程度的相关性

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世界核心医学期刊文摘（眼科学分册） 2006年第6期2卷 25-26页

作者： Hubbard A. F. Askew E. W. singh N. p.S. Bernstein 曹绪胜(译) 不详 Moran Eye Center University of Utah 50 N Medical Dr Salt Lake City UT 84132 United States

Objective: To determine whether adipose and red blood cell membrane lipids,particularly long-chain polyunsaturated fatty acids such as docosahexaenoic acid and eicosapentaenoic acid,are significantly correlated with phenotype in a family with autosomal dominant Stargardt macular dystrophy (gene locus STGD3). Amutation in the ELOVL4 gene is responsible for the macular dystrophy in this family,and its disease-causing mechanism may be its possible involvement in fatty acid elongation in the retina. Methods: The subjects in this study included 18 adult family members known to have a 2-base pair deletion in the ELOVL4 gene. Control subjects included 26 family members without the mutation. Each subject received a complete eye examination including fundus photographs,the results of which were used to grade the severity of macular dystrophy on a 3-tier scale. Red blood cell membrane and adipose tissue lipids were analyzed as an indication of short-term and long-term dietary fatty acid intake. Results: When adipose lipids were analyzed,there was a significant inverse relationship between phenotypic severity and the level of eicosapentaenoic acid (r=-0.54; p =.04). When red blood cell lipids were analyzed,there were significant inverse relationships between phenotypic severity and levels of eicosapentaenoic acid (r=-0.55; p=.02) and docosahexaenoic acid (r=-0.48; p=.04). Conclusions: These results indicate that the phenotypic diversity in this family may be related to differences in dietary fat intake as reflected by adipose and red blood cell lipids. Clinical Relevance: This study demonstrates that dietary factors can influence the severity of an inherited human macular dystrophy.

关键词：多聚不饱和脂肪酸黄斑营养不良红细胞膜脂质病情严重程度常染色体显性基因突变二十二碳六烯酸二十碳五烯酸脂肪摄入量同家族

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Rapid visualization of latent fingerprints using novel CaSiO_3:Sm^(3+) nanophosphors fabricated via ultrasound route

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journal of Rare Earths 2019年第1期37卷 32-44,M0003页

作者： R.B.Basavaraj G.p.Darshan B.Daruka prasad S.C.Sharma H.Nagabhushana prof.C.N.R.Rao Centre for Advanced Materials Tumkur University Department of physics Acharya Institute of Graduate Studies Department of physics B M S Institute of Technology and ManagementVTU Affiliated Department of Mechanical Engineering Jain UniversityAdvisor Jain Group of Institutions

Latent fingerprints (LFps) were the most significant identification method for individualization. Most commonly available fingerprints (Fps) in crime spot investigation were latent and patent types. Generally,LFps were invisible and thus the effective visualization technique necessitates for the analysis of such Fps. In the past years, many traditional visualization techniques have been employed, but suffered with low resolution, sensitivity, contrast and high background noise. To overcome such limitations, we synthesized Sm^(3+) doped CaSiO_3 nanophosphors (Nps) via an ultrasound irradiation route using mimosa pudica (m. p.)leaves extract as a bio-surfactant. The morphological behavior of the prepared samples was extensively studied by varying the concentration of the m. p. extract, ultrasound irradiation duration, pH level of the precursor solution and sonication power. The photoluminescence (pL) emission spectra exhibit characteristic peaks at～561,601 and 647 nm, which were attributed to^5G_(5/2)→~6H_j(j=5/2,7/2 and 9/2) transitions of Sm^(3+) *** judd-Ofelt(j-O) intensity parameters and other radiative properties were estimated using pL data. The Commission International de I'Eclairage (CIE) color coordinates were positioned in orange-red region shows average correlated color temperature (CCT) value of～3576 K. The optimized samples can be used as a labeling agent for the visualization of LFps on various porous and non-porous surfaces under normal light irradiation. The visualized Fps reveals well defined ridge characteristics, namely whorl, loop,arch, bifurcation, eye, island, bridge, sweat pores, etc, with high sensitivity, selectivity, low contrast and background hindrance. Aforementioned results evidence that the prepared CaSiO_3:Sm^(3+) Nps were promising luminescent materials for solid state lighting and forensic applications.

关键词： Ultrasonication,synthesis photoluminescence Fingerprint photometric properties judd-Ofelt analysis Rare earths

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分泌抗副鸡嗜血杆菌单克隆抗体杂交瘤细胞株的建立

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中国兽医科技 1996年第10期26卷 25-26页

作者：张培君佟瑞平陈小玲 p.j.Blackal 北京市农林科学院畜牧兽医研究所澳大利亚昆士兰州动物研究所

分泌抗副鸡嗜血杆菌单克隆抗体杂交瘤细胞株的建立１）张培君佟瑞平陈小玲（北京市农林科学院畜牧兽医研究所１０００８１）Ｐ．Ｊ．Ｂｌａｃｋａｌ（澳大利亚昆士兰州动物研究所）副鸡嗜血杆菌（Ｈｐｇ）是引起鸡传染性鼻炎（ＩＣ）的... 详细信息

分泌抗副鸡嗜血杆菌单克隆抗体杂交瘤细胞株的建立１）张培君佟瑞平陈小玲（北京市农林科学院畜牧兽医研究所１０００８１）Ｐ．Ｊ．Ｂｌａｃｋａｌ（澳大利亚昆士兰州动物研究所）副鸡嗜血杆菌（Ｈｐｇ）是引起鸡传染性鼻炎（ＩＣ）的病原菌。根据Ｐａｇｅ的分型方法，Ｈ...

关键词：鸡病嗜血杆菌单克隆抗体杂交瘤细胞株

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印度克勒妮·玛塔神庙数万只老鼠每天被上万信徒膜拜

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环球人文地理 2021年第23期 84-91页

作者：奔跑的喵须 sonika agarwal jason Risley j2CT Bergadder yogendra singh alexander wunder stock

在印度西部的拉贾斯坦邦地区,有一座名为克勒妮·玛塔的庙宇,又被称作"老鼠庙"。这里是数万只老鼠的安乐窝,它们不仅在庙里食宿,每天还接受成千上万信徒的朝拜。公元15世纪,一位虔诚的印度教徒来到拉贾斯坦邦地区,在距离比卡内尔县30公...

在印度西部的拉贾斯坦邦地区,有一座名为克勒妮·玛塔的庙宇,又被称作"老鼠庙"。这里是数万只老鼠的安乐窝,它们不仅在庙里食宿,每天还接受成千上万信徒的朝拜。公元15世纪,一位虔诚的印度教徒来到拉贾斯坦邦地区,在距离比卡内尔县30公里的德萨努克小镇上,修建了一座供奉印度教女神克勒妮·玛塔的神庙。在印度教的传说中,老鼠是这位女神的化身,因此教徒们每年花费十多万卢比,精心维护神庙的同时,也在庙中供养老鼠。

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Interaction studies between rice and pyricularia grisea in jilin province,***

Interaction studies between rice and Pyricularia grisea in J...

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第十一届全国植物基因组学大会

作者： j.C.Wang~(1*),Y.L.Li~2,j.W.Wen~1,L.j.Meng~2,W.p.Liu~1,Y.M.jia~2,S.R.Yan~1,j.C.pang~1,j.Q.Wang~3,j. p.Ren~1 1 Institute of plant protection,jilin Academy of Agricultural Sciences,Changchun City,130124,jilin pro.,p.R. China. 2 Tonghua Academy of Agricultural Sciences Research,Meihekou City,jilin province,135007,p.R.China. 3 Station of Agricultural Technology Extention of Yanhe Town,Yushu City,jilin province,130421,p.R.China

jilin province is an important japonica-type rice producing areas in Northeast China,and rice blast caused by pyricularia grisea,is a serious disease in local *** the molecular biotechnology and conventional agricultu...

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二氧化锰在均一相中电化学还原的动态研究

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电池 1974年第3期 6-12页

作者： j.p.Gabano j.Seguret j.F.Laurent

许多作者对二氧化锰的电化学还原,作了很多研究工作。但在多数情况下,只能指出影响电池工作特性的一些因数。由于还原过程中的所谓去极化反应是如此复杂,往往难于找到所研究的特性的相互关系。

关键词：二氧化锰电化学电流电解液极化电压 MnOOH 化学还原动态研究

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Intra- and Inter-Observer Reproducibility of Ultrasound Measurements of pelvic Inlet Diameter in pregnant Women

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Open journal of Obstetrics and Gynecology 2014年第11期4卷 653-658页

作者： Yi Man Wah Yiu Man Chan Daljit singh Sahota Shuk Yi Hui Tze Kin Lau Tak Yeung Leung Department of Obstetrics and Gynecology Prince of Wales Hospital The Chinese University of Hong Kong Hong Kong China

Objectives: To determine intra- and inter-observer reproducibility of the ultrasound measurement of pelvic inlet in the first trimester of pregnancy. Methods: Transabdominal pelvic ultrasound was performed to measure the pelvic inlet anteroposterior diameter using a 2D probe in twelve Chinese women having a singleton pregnancy. Scans were performed in the first trimester by three sonographers. The pelvic inlet anteroposterior diameter was defined as the distance between the anterior surfaces of the sacral promontory and the superior medial border of the pubic bone most adjacent to the pubic symphysis. Intra-observer repeatability was determined and analysis of variance was performed to assess inter-observer measurements. The bias between any two sonographers’ measurements was assessed by calculating the 95% confidence interval for the mean difference between sonographers paired measurements. Results: Intra-observer reproducibility was 0.71 cm. Analysis of variance indicated that there was no significant difference between sonographers’ measurements (p = 0.46). The bias between two sonographers’ measurements ranged from 0.05 to 0.32 cm. Conclusion: It is technically feasible to measure the pelvic inlet diameter using ultrasound (USG) at the first trimester. High inter-observer reproducibility can be achieved. Further studies are required to establish the potential role of this technique and the measurement of the pelvic inlet diameter in prediction of labor outcome.

关键词： pelvimetry pelvic Inlet Diameter Obstetric Conjugate

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Life cycle and morphology of development stages of physocephalus dromedarii (Nematoda: Spirocercidae)

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Asian pacific journal of Tropical Biomedicine 2016年第10期6卷 825-829页

作者： Rolf Karl Schuster Saritha Sivakumar jrg Kinne Central Veterinary Research Laboratory

Objective: To study the development of physocephalus dromedarii(p. dromedarii) in the final ***: For this, 5 adult dromedaries were orally infected with third larval stages of p. dromedarii obtained from naturally infected scarab beetles(Scarabaeus cristatus). The camels were necropsied 14, 42, 70, 84 and 280 days after infection and their abomasi were examined for the presence of ***: Early 4th stage larva occurred already 2 weeks after infection. They were still in the sheet of the 3rd stage larva. Six weeks after infection, the nematodes became juvenile male and female adults measuring 9 and 10 mm, respectively. Their size doubled at 10 weeks post infection and patency was reached at 12 weeks. p. dromedarii was still present in the camel that was examined 40 weeks after ***: As a result of experimental infection of the natural host, the determined prepatent period of p. dromedarii equalled 12 weeks.

关键词： physocephalus dromedarii Nematoda Life cycle Dromedary Abomasum

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