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Scanning Mode Application of Neutron-Gamma Analysis for Soil Carbon Mapping

Pedosphere 2019年第3期29卷 334-343页

作者： Aleksandr KAVETSKIY Galina YAKUBOVA Nikolay SARGSYAN Clyde WIKLE Stephen A. PRIOR henry allen torbert Bryan A. CHIN United States Department of Agriculture-Agricultural Research Service (USDA-ARS) National Soil Dynamics Laboratory Auburn AL 36832 (USA) Auburn University Detection and Food Safety Center Samuel Ginn College of Engineering Auburn AL 36849 (USA)

Soil carbon mapping is extremely useful in assessing the effect of land management practices on soil carbon storage. Applications of neutron-gamma analysis in scanning mode for mapping of soil carbon are discussed. A Global Positioning System(GPS) device and softwares required to simultaneously acquire gamma signals and geographical positions during scanning operations were added to an existing measurement system. The reliability of soil carbon measurements in scanning mode was demonstrated to be in agreement with results acquired from static mode. The error analysis indicated that scanning measurements can be conducted with the same accuracy as static measurements in approximately one fourth the time. To obtain results suitable for mapping analogous to traditional chemical analyses(i.e.,± 0.5 in weight percent or ± 0.5 w%), scanning time over a given site should be ca. 15 min using the current measurement system configuration. Based on this measurement time, a reasonable towing speed of 3–5 km h^-1, the necessity for complete site coverage during scanning, the number of sites(within the surveyed field), and the required total measurement time can be estimated. Soil carbon measurements for 28 field sites(total area ca. 2.5 ha) were conducted in ca. 8 h. Based on acquired data,a soil carbon distribution map was constructed utilizing various softwares. The surveyed field area included an asphalt road that had carbon readings higher than the surrounding land. The clarity with which these carbon-rich zones were delineated on the constructed map represents evidence supporting the veracity of this method. Neutron-gamma analysis technology can greatly facilitate timely construction of soil carbon maps.

关键词： ArcGIS Google Earth Pro IGOR scanning technology soil carbon distribution map soil carbon storage

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Long-Term Cropping System, Tillage, and Poultry Litter Application Affect the Chemical Properties of an Alabama Ultisol

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Pedosphere 2019年第2期29卷 180-194页

作者： Zhongqi HE Irenus A.TAZISONG Xinhua YIN Dexter B.WATTS Zachary N.SENWO henry allen torbert United States Department of Agriculture-Agricultural Research Service(USDA-ARS) Southern Regional Research Center Department of Biological and Environmental Sciences Alabama A&M University Department of Plant Sciences University of Tennessee United States Department of Agriculture-Agricultural Research Service(USDA-ARS) National Soil Dynamics Laboratory

Sustainable agricultural practices have been steadily increasing in the last couple of decades. These management practices frequently involve cover crops, less or no-tillage, and organic fertilization. In this study, we evaluated the effects of cropping systems,tillage and no-tillage, and the application of poultry litter(PL) on selected soil physicochemical properties and soil test nutrients. Soil samples were collected from the topmost surface(0–5 cm) and subsurface(5–10 cm) layers. The general effect trend was PL application > no-tillage > cover crop > cropping type. There were more statistically significant(P ≤ 0.05) correlations between the 18 soil attributes at the topmost surface than at the subsurface. This could be due to the accumulation of external C inputs and nutrients by crop residues and PL application as well as the retaining effects of no-tillage on less mobile nutrient components. Because of their high mobility and volatile nature, total nitrogen(N), ammonia-N(NH_4^+-N), and nitrate-N(NO_3^--N) levels varied greatly(high standard deviations), showing no consistent patterns among the treatments. Compared to the soybean cropping system, corn, especially with the wheat cover crop, contributed more to the total carbon(C) and sulfur(S) in the topmost surface soils(0–5 cm). Poultry litter application greatly increased pH, cation exchange capacity(CEC), base saturation, magnesium(Mg), phosphorus(P), calcium(Ca),sodium(Na), potassium(K), manganese(Mn), copper(Cu), and zinc(Zn) in both soil layers. Contrast comparisons revealed that PL application had more of an effect on these soil chemical properties than no-tillage and cropping systems. These results will shed light on developing better nutrient management practices while reducing their runoff potentials.

关键词： conventional tillage cover crop Mehlich-3 extraction no-tillage nutrient management practice organic fertilization soil attributes soil test nutrients

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从名实不符观分析阮籍《大人先生传》

从名实不符观分析阮籍《大人先生传》

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作者： henry allen（安河木）华东师范大学

学位级别：硕士

Early Chinese philosophy debated the nature of the relationship between name（ming名）and actuality（shi实）.Within this discourse,a mainstream position held that names can or ought to be congruent with *** the same time,a subversive position explored the potential of incongruity:names that cannot or ought not be *** theme of incongruent names extends through numerous texts,from the Laozi and Zhuangzi to Wei-Jin Xuanxue玄学thinkers like He Yan,Wang Bi,and Guo *** thesis explores the theme of incongruent names in an essay by Ruan Ji阮籍（210-263）titled“Account of Master Great Man”大人先生传.Ruan Ji’s essay has not yet been examined from the perspective of the discourse on incongruent *** it from this angle shows Ruan Ji to be advocating a philosophy of incongruity whereby congruent names are damaging to those who possess them and thus ought to be *** Ji’s account of incongruity differs from his predecessors by wholeheartedly advocating for incongruity as a good in the face of the harm of *** Part One I discuss incongruent names in Ruan Ji’s “Account of Master Great Man,” including his critique of the Ruist Gentleman,the incongruity of the figure of the Great Man,and the ways that Ruan Ji enacted his philosophy of incongruity by staying free of a reputation that cohered with his *** Part Two I examine the foundations of the discourse on incongruity in the Laozi,Zhuangzi,and the Xuanxue thinkers He Yan,Wang Bi,and Guo Xiang and show how Ruan Ji fits into this discourse.

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Peak stent discomfort occurs early and ureteral stent with distal loop design has less paineA pilot prospective randomised singleblinded trial over 2 weeks

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Asian Journal of Urology 2020年第4期7卷 357-362页

作者： Kheng Sit Lim Zhi Wei Law Marcus Way Lunn Chow allen Soon Phang Sim henry Sun Sien Ho Department of Urology Singapore General HospitalSingapore Department of Urology Tan Tock Seng HospitalSingapore

Objectives:The Polarisloop ureteric stent reduces the severity of stent discomfort by minimising stent material in the *** impact of ureteral stenting on quality of life(QoL)within 1 week remains *** usefulness of the patient-administered ureteral stent symptoms questionnaire(USSQ)during this period of stent insertion was *** this pilot single-blinded prospective randomised study,we investigate 1)the presence of early(within the 1st week)stent discomfort via the visual analog scale(VAS);2)determine the QoL of the loop stent against conventional ***:Forty adults requiring retrograde unilateral ureteral stent placements were *** with single ureteric stone or benign stricture were *** were randomised in 1:1 ratio to the loop and pigtail *** USSQ was administered before placement(baseline),USSQ and VAS were administered on Day 3,7,and ***:There were no significant differences between the USSQ *** pain scores on Day 3 were lower in the loop stent group(2.9 vs.4.0,pZ0.047).There was a significant reduction in pain from Day 3e7(0 vs.1,pZ0.016)in the pigtail ***:Our results suggest that peak stent discomfort occurs but resolves quickly within 1 week of post-stent *** loop stent offers a better pain profile compared with conventional stents at Day 3 but no difference in *** loop stent reduces early pain experience post-stent insertion and may have a role in the care of patients who experience significant stent discomfort previously.

关键词： Quality of life Stent discomfort Ureteral stent symptoms questionnaire Ureteric stents

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美国第一夫人米歇尔·奥巴马访问华盛顿育英学校孔子课堂

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孔子学院 2014年第2期 7-8页

作者： allen Zhong Jonathan henry

华盛顿时间3月4日,美国第一夫人米歇尔·奥巴马访问华盛顿育英学校(Yu Ying Public Charter School)孔子课堂,与学习中文的美国学生亲切交流,向孩子们了解中国,学习中文,为3月末的中国之行做准备。下午两点,米歇尔来到六年级的教室,30... 详细信息

华盛顿时间3月4日,美国第一夫人米歇尔·奥巴马访问华盛顿育英学校(Yu Ying Public Charter School)孔子课堂,与学习中文的美国学生亲切交流,向孩子们了解中国,学习中文,为3月末的中国之行做准备。下午两点,米歇尔来到六年级的教室,30位学生围坐在她旁边。

关键词：华盛顿育英第一夫人孔子孔丘(前551-前479) 学校学堂奥巴马美国美利坚合众国北美洲

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弯道激情

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汽车与运动 2018年第7期 60-68页

作者： henry CATCHPOLE damian blakemore Qu allen

保时捷在Gayman上用一台水平对置四缸机,替代了原来的水平对置六缸机。

关键词：激情弯道保时捷四缸山路

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Multiparametric MRI reporting using Prostate Imaging Reporting and Data System version 2.0 (PI-RADSv2) retains clinical efficacy in a predominantly post-biopsy patient population

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Asian Journal of Urology 2019年第3期6卷 256-263页

作者： Edwin Jonathan Aslim Yan Mee Law Puay Hoon Tan John Carson allen Jr Lionel Tim-Ee Cheng Viswanath Anand Chidambaram Li Yan Khor Benjamin Yongcheng Tan Ernest Wencong Eu Christopher Wai Sam Cheng John Shyi Peng Yuen henry Sun Sien Ho Lui Shiong Lee Department of Urology Singapore General HospitalSingapore Department of Diagnostic Radiology Singapore General HospitalSingapore Division of Pathology Singapore General HospitalSingapore Centre of Quantitative Medicine DUKE-NUS Medical SchoolSingapore Department of Anatomical Pathology Singapore General HospitalSingapore

Objective:To evaluate the efficacy of multiparametric magnetic resonance imaging(mp-MRI)using Prostate Imaging Reporting and Data System version 2.0(PI-RADSv2)definitions in detecting organ-confined prostate ***:All patients who underwent radical prostatectomy between January 1,2014 and December 30,2014 were *** underwent mp-MRI within 180 days before *** with prior pelvic irradiation or androgen deprivation therapy were *** embedded,whole-mount histopathology was centrally reviewed and correlated with imaging for tumour location,Gleason score(GS)and ***:There were 39 patients included,of which 35(90%)had mp-MRI done post-biopsy.A total of 93 cancer foci were identified on whole-mount pathology,of which mp-MRI detected 63(68%).Of those detected by mp-MRI,14 were PI-RADS 3(n=6 for GS 6,n=8 for GS 7,no GS≥8)and 49 were PI-RADS 4e5(nZ7 for GS 6,nZ33 for GS 7,and nZ9 for GS≥8).There were 30(32%)cancer foci missed by mp-MRI(n=15 for GS 6,n=13 for GS 7 and n=2 for GS≥8).A lesion classified as PI-RADS 4e5 predicted a higher grade cancer on pathology as compared to PI-RADS 3(for GS 7 lesions,odds ratio[OR]=3.53,95%CI:0.93e13.45,p=0.064).The mp-MRI size detection limit was 20 mm2 and 100 mm2 for 50%and 75%probability of cancer,*** associating with radiological and pathologic stage,the weighted Kappa value was 0.69(p<0.0001).The sensitivity and positive predictive values for this study were 68%(95%CI:57%e77%)and 78%(95%CI:67%e86%),***:In this predominantly post-biopsy cohort,mp-MRI using PI-RADSv2 reporting has a reasonably high diagnostic accuracy in detecting clinically significant prostate cancer.

关键词： Gleason score Histopathology Magnetic resonance imaging Prostatectomy Prostatic cancer

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Evaluation of Ribosomal RNA Removal Protocols for <i>Salmonella</i>RNA-Seq Projects

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Advances in Microbiology 2014年第1期4卷 25-32页

作者： Arvind A. Bhagwat Z. Irene Ying allen Smith Diet Genomics and Immunology Laboratory Henry A. Wallace Beltsville Agricultural Research Center Agricultural Research Service United States Department of Agriculture Beltsville USA Environmental Microbial & Food Safety Laboratory Beltsville USA

Next generation sequencing is a powerful technology whose application in sequencing entire RNA populations (RNA-Seq) of food-borne pathogens will provide valuable insights. A problem unique to prokaryotic RNA-Seq is removal of ribosomal RNA. Unlike eukaryotic messenger RNA (mRNA), bacterial mRNA species are devoid of polyadenylation at the 3’-end and thus the approach of affinity enrichment of mRNA using oligo-dT probes is not an option. Among several approaches to enriching mRNA molecules, removal of ribosomal RNA (rRNA) by subtractive hybridization has been widely used. This approach is a single-step procedure for which several rRNA-depletion kits are commercially available. We evaluated three commercially available rRNA-depletion kits to determine their respective efficiencies of rRNA removal from Salmonella enterica serovar Typhimurium strain SL1344. The three protocols achieved varying degrees of rRNA depletion and resulted in 8 to 1000-fold enrichment of mRNA. rRNA removal probes from two of the three kits were unable to titrate out 23S rRNA species while removal of 16S rRNA was less efficient. The Ribo-Zero kit was most efficient in eliminating 16S, 23S and 5S ribosomal RNA species from the transcriptome of S. enterica serovar Typhimurium strain SL1344.

关键词： Ribosomal RNA Depletion Bacterial NextGen Sequencing Food Borne Pathogen RNA Sequencing

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福特汽车公司创始人亨利·福特

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大学英语 2006年第12期 17-19,28页

作者： Scott allen 顾晓栋（译注）不详嘉兴职业技术学院

'Nothing is particularly hard if you divide it into small jobs.'

关键词：福特汽车公司亨利创始人汽车制造汽车生产发明者装配线革新

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重组sCR1对大鼠急性脊髓损伤组织免疫炎症反应的影响

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中华创伤骨科杂志 2005年第6期7卷 548-551,555页

作者：李良满朱悦范广宇 henry Marsh 中国医科大学附属第一医院骨科 02494 USA Needham MAAVANT Im-munotherapeutics Inc

目的探讨重组可溶性补体受体Ⅰ型(sCR1)对大鼠急性脊髓损伤组织免疫炎症反应的影响及对脊髓损伤的保护作用。方法采用改良allen重物打击法制成SD大鼠脊髓急性损伤模型,观察伤后12h、1d、3d、7d、14d时间点sCR1组与生理盐水(NS)组脊髓损... 详细信息

目的探讨重组可溶性补体受体Ⅰ型(sCR1)对大鼠急性脊髓损伤组织免疫炎症反应的影响及对脊髓损伤的保护作用。方法采用改良allen重物打击法制成SD大鼠脊髓急性损伤模型,观察伤后12h、1d、3d、7d、14d时间点sCR1组与生理盐水(NS)组脊髓损伤组织中性粒细胞浸润程度及C3c的阳性表达,测定髓过氧化物酶(MPO)活性,并采用BBB评分法评定大鼠后肢运动功能。结果sCR1组在伤后各时间点C3c阳性表达均明显少于NS组,差异有极显著性意义(P<0.01);sCR1组在伤后各时间点损伤组织髓过氧化物酶(MPO)活性弱于NS组,差异有极显著性意义(P<0.01);sCR1组在伤后7、14d时间点大鼠后肢BBB评分明显优于NS组(P<0.05、P<0.01)。结论重组sCR1可通过抑制补体系统激活机制显著减轻急性脊髓损伤组织的免疫炎症反应,减轻继发性脊髓损伤。

关键词：脊髓损伤补体髓过氧化物酶可溶性补体受体Ⅰ型

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