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Stable Isotope Sourcing Using Sampling

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Open j.urnal of Ecology 2014年第6期4卷 289-298页

作者： Erik B. Erhardt Blair O. Wolf Merav Ben-David edward j. Bedrick Colorado School of Public Health University of Colorado at Denver Aurora USA Department of Biology University of New Mexico Albuquerque USA Department of Mathematics and Statistics University of New Mexico Albuquerque USA Department of Zoology and Physiology University of Wyoming Laramie USA

Stable isotope mixing models are used to estimate proportional contributions of sources to a mixture, such as in the analysis of animal diets, plant nutrient use, geochemistry, pollution, and forensics. We describe an algorithm implemented as SISUS software for providing a user-specified number of probabilistic exact solutions derived quickly from the extended mixing model. Our method outperforms IsoSource [1], a deterministic algorithm for providing approximate solutions to represent the solution polytope. Our method is an approximate Bayesian large sample procedure. SISUS software is freely available at ***/sisus and as an R package at ***/web/packages/sisus.

关键词： SISUS IsoSource Mixing Model Animal Ecology Markov Chain Monte Carlo

Elimination of a disulfide bridge in <i>Aspergillus niger</i>NRRL 3135 Phytase (PhyA) enhances heat tolerance and optimizes its temperature versus activity profile

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Advances in Biological Chemistry 2012年第4期2卷 372-378页

作者： edward Mullaney Kandan Sethumadhavan Stephanie Boone Xin Gen Lei Abul H. j. Ullah Department of Animal Science Cornell University New York USA Southern Regional Research Center ARS USDA New Orleans USA

In this study, the optimum temperature was lowered while the residual phytase activity after heating to 70℃ was raised in a widely utilized phytase, Aspergillus niger NRRL 3135 PhyA. This was accomplished by site-directed mutagenesis of the cysteines that are involved in the formation of a single disulfide bridge (DB). When compared to wild type (WT), three of the four mutant phytases displayed a lower optimum temperature, 42℃, and up to a four-fold increase in activity after heating. These findings have a potentially broad application to be incorporated along with other desirable features to engineer a phytase with superior physical and chem-ical attributes for animal feed applications.

关键词： Phytase Disulfide Bridge Aspergillus niger Site-Directed Mutagenesis

Katrina飓风对新奥尔良市供、排水和污水处理系统的影响

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中国给水排水 2008年第4期24卷 1-8页

作者： Hou Ai-xin Benj.min Qi edward A. Laws Ralph j. Portier 陈超路易斯安纳州立大学海岸和环境学院美国美国陆军健康促进和预防医学中心美国清华大学环境科学与工程系北京100084

2005年8月29日,在美国墨西哥湾沿岸登陆的Katrina(卡特里娜)飓风带来的风浪涌入并损坏了新奥尔良市的防波堤,淹没了该市超过80%的面积。着重介绍了卡特里娜飓风对新奥尔良市排水、供水和污水处理系统的影响,并介绍了在飓风过后为恢复这... 详细信息

2005年8月29日,在美国墨西哥湾沿岸登陆的Katrina(卡特里娜)飓风带来的风浪涌入并损坏了新奥尔良市的防波堤,淹没了该市超过80%的面积。着重介绍了卡特里娜飓风对新奥尔良市排水、供水和污水处理系统的影响,并介绍了在飓风过后为恢复这些系统采取的补救措施。还讨论了地表水、地下水和瓶装水等的水质问题,以及在今后的防灾救灾工作中应进行的准备。还提供了在飓风过后几周和几个月内应对市区漫流、地下水渗流和生活污水的措施。

关键词：卡特里娜飓风新奥尔良供水污水排水应急处理

Potential of Sorghum as an Alternative to Corn Forage

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American j.urnal of Plant Sciences 2016年第7期7卷 1106-1121页

作者： Girma Getachew Daniel H. Putnam Christopher M. De Ben edward j. De Peters Department of Plant Sciences University of California Davis CA USA Department of Animal Science University of California Davis CA USA

Climate change, which is currently characterized by increased atmospheric CO2, rising temperature, and altered pattern of precipitation, is affecting agricultural productivity. Rising temperatures and shifting precipitation patterns will alter the ability to meet crop water requirements, water availability, crop productivity, and costs of water access across the agricultural landscape. Searching for alternative crops with lower water requirements increased yield or organic matter per unit of water are important for agricultural sustainability. Sorghum is one of the world’s important crops;a crop that is adapted to a variety of agronomic and environmental conditions, particularly to areas with low rainfall or limited access of irrigation water. Forage Sorghum is able to produce comparable yield to corn suggesting that there is a potential for Sorghum to replace corn in areas where water supply is limited. But, there is a cost since corn silage, because of its high grain content, which is typically superior in digestible energy content to Sorghum forages. There is also a lack of information on the feeding value of Sorghum silages in high producing dairy cows as well as strategies that may be used for sorghum silage to replace a portion of the corn silage in dairy cattle diets.

关键词： Sorghum Climate Change Drought Tolerance Salinity

Dietary supplementation of Bacillus subtilis influenced intestinal health of weaned pigs experimentally infected with a pathogenic E. coli

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j.urnal of Animal Science and Biotechnology 2019年第4期10卷 969-980页

作者： Kwangwook Kim Yij.e He Xia Xiong Amy Ehrlich Xunde Li Helen Raybould edward R.Atwill Elizabeth A.Maga j.ns j.rgensen Yanhong Liu Department of Animal Science University of CaliforniaDavisCA 95616USA School of Veterinary Medicine University of CaliforniaDavisCA 95616USA Chr.Hansen A/S HoersholmDenmark

Background: There is growing evidence to support the beneficial effects of supplementing direct-fed microbials(DFM) on performance, health status, and immune responses of weaned pigs. Therefore, the obj.ctive of this study was to investigate dietary supplementation of Bacillus subtilis(DSM 25841) on growth performance, diarrhea, gut permeability and immunity of weaned pigs experimentally infected with a pathogenic F-18 Escherichia coli(E. coli).Results: The F18 E. coli infection reduced(P j.j.num compared with non-challenged control. Supplementation of Bacillus subtilis linearly enhanced average daily gain of E. coli infected pigs from d 0 to 5 post-inoculation(PI)(P j.j.nal mucosa when pigs were fed with the control diet. Supplementation of Bacillus subtilis linearly up-regulated(P j.j.nal mucosa of E. coli infected pigs. In addition, E. coli infection increased(P < 0.05) the m RNA expression of several immune genes(IL1 A, IL1 B, and IL7 on d 5 PI, and IL1 B, IL6, IL7, and TNF on d 11 PI) in the ileal mucosa of weaned pigs. Inclusion of Bacillus subtilis to control diet linearly down-regulated gene expression of IL1 A on d 5 PI(P = 0.07) and IL6 on d 11 PI(P < 0.05) in ileal mucosa of E. coli infected ***: Supplementation of Bacillus subtilis(DSM 25841) enhanced growth r

关键词： Bacillus subtilis Growth rate Gut barrier function Intestinal inflammation Pathogenic Escherichia coli Weaned pigs

TRENDS IN ORGANOCHLORINE AND RADIONUCLIDE CONCENTRATIONS IN THE UPPER RIO GRANDE BASED ON SEDIMENT CORE ANALYSES FROM ELEPHANT BUTTE RESERVOIR,NEW MEXICO

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International j.urnal of Sediment Research 1998年第4期 5-15页

作者： P. C. VAN METRE 1, B. j. MAHLER 2 and edward CALLENDER 3

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１ＩＮＴＲＯＤＵＣＴＩＯＮＷａｔｅｒｑｕａｌｉｔｙｔｒｅｎｄｓ，ｏｒｌａｃｋｔｈｅｒｅｏｆ，ｃａｎｒｅｆｌｅｃｔｔｈｅｒｅｌａｔｉｏｎｂｅｔｗｅｎｗａｔｅｒｑｕａｌｉｔｙａｎｄｈｕｍａｎａｃｔｉｖｉｔｉｅｓ－ｃｈａｎｇｅｓｉｎｃｏｎｃｅｎｔｒａｔｉ...

关键词： Sedimeatang record Water quality Chemical signature of reservoir sediment Reservoir deposit Rio Grande

西南少数民族药食两用植物“茴香菖蒲”不同部位的挥发油成分研究

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中国中药杂志 2018年第9期43卷 1774-1779页

作者：舒航 Taylan Morcol 郑杰赵丽丹 edward j.Kennelly 龙春林中央民族大学生命与环境科学学院北京100081 美国纽约城市大学黎曼学院美国纽约10468 美国纽约城市大学研究生中心美国纽约10016 吉首大学生物资源与环境科学学院湖南吉首416000 中国科学院昆明植物研究所云南昆明650201

茴香菖蒲Acorus macrospadiceus是贵州等地少数民族常用的药食两用植物。该文采用水蒸气蒸馏法提取茴香菖蒲叶片和根状茎的挥发油,结合气相色谱-质谱（GC-MS）联用技术分别对其挥发油进行成分分析,经计算机谱库检索（NIST14.0,NIST14.0... 详细信息

茴香菖蒲Acorus macrospadiceus是贵州等地少数民族常用的药食两用植物。该文采用水蒸气蒸馏法提取茴香菖蒲叶片和根状茎的挥发油,结合气相色谱-质谱（GC-MS）联用技术分别对其挥发油进行成分分析,经计算机谱库检索（NIST14.0,NIST14.0s）和人工解析,应用峰面积百分比法计算相对含量。结果显示,从茴香菖蒲叶片和根状茎中分别分离出了30和43个色谱峰,分别鉴定出25和36个化合物,鉴定出的化合物的相对含量占各自挥发油总量的97.85%和97.18%。茴香菖蒲叶片和根状茎中挥发油的主要成分均为草蒿脑（estragole）,其相对含量占各自挥发油总量的93.56%和71.62%。茴香菖蒲叶片和根状茎挥发油中均含有草蒿脑、β-石竹烯（β-caryophyllene）、茴香烯（trans-anethole）、β-榄香烯（β-elemene）、莰醇（endo-borneol）等14种挥发性成分,其相对含量分别占各自挥发油总量的96.98%和77.47%,但各成分含量在不同部位中的含量存在一定差异,且具有各自独特的挥发油成分。通过对茴香菖蒲不同部位挥发性成分的分析与研究,结合植物资源自身特点发现,其叶片更具有开发利用前景。另外,应注意茴香菖蒲在作为药用时,要与石菖蒲***加以区分。该文为茴香菖蒲的进一步开发和可持续利用提供了理论参考。

关键词：茴香菖蒲山柰菖蒲 GC-MS 挥发油草蒿脑

Introduction to modern photogrammetry

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Acceptability of an adj.nct equine-assisted activities and therapies program for veterans with posttraumatic stress disorder and/or traumatic brain inj.ry

2001年

作者： edward M. Mikhail, j.mes S. Bethel, j. Chris McGlone

This book isintended to serve as a rigorous introduction to the basic principles and practice of photogrammetry and as a guide to the related areas in which photogrammetry plays a role or which affect the practice of ... 详细信息

ISBN: (纸本)0471309249

关键词： Photogrammetry.

来源：畅想之星图书光盘版（南... 评论

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j.urnal of Integrative Medicine 2020年第2期18卷 169-173页

作者： Louisa Sylvia Emerson West Allyson M.Blackburn Carina Gupta Eric Bui Tara Mahoney Geraldine Duncan edward C.Wright Simon Lej.une Thomas j.Spencer Home Base:A Red Sox Foundation and Massachusetts General Hospital Program Massachusetts General HospitalCharlestownMA 02129USA Harvard Medical School BostonMA 02115USA Dauten Family Center for Bipolar Treatment Innovation Massachusetts General HospitalBostonMA 02114USA Equine Immersion ProgramsTM USA Pediatric Psychopharmacology and Adult ADHD Program Massachusetts General HospitalBostonMA 02114USA

Obj.ctive: Equine-assisted activities and therapies(EAATs) have been a growing adj.nctive integrative health modality, as they allow participants to practice mindfulness, emotional regulation, and self-mastery or self-esteem building skills. Preliminary evidence suggests that these programs may be helpful in reducing posttraumatic stress disorder(PTSD), anxiety, and depressive symptoms. The current study examines the acceptability of integrating an EAAT program as part of a two-week, intensive clinical program for veterans with PTSD and/or traumatic brain inj.ry(TBI).Methods: A family member or support person could accompany veterans and participate in the *** hundred and six participants(veteran n = 62, family n = 44) left the urban environment in an intensive outpatient program(IOP) to attend a two-day, weekend EAAT in rural New Hampshire. Satisfaction surveys were conducted on the last day of the program and examined using thematic ***: The following themes were reported in the surveys: ability of horses to catalyze emotional rehabilitation, effectiveness of immersion in equine-assisted activities, program’s ability to foster interpersonal relationships and necessity of education about PTSD for staff. Participants also reported enj.ying the program as highlighted by qualitative feedback, a mean score of 9.76(standard deviation[SD] = 0.61) as reported by veterans and a mean score of 9.91(SD = 0.29) as reported by family members on a 10-point visual analog scale with higher scores indicating a greater overall ***: These data offer preliminary evidence that an adj.nct EAAT program is acceptable for veterans with PTSD and/or TBI participating in an IOP.

关键词： Posttraumatic stress disorder Military personnel Traumatic brain inj.ry Complementary and alternative medicine Equine-assisted therapy