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New Identities for Weak KAM Theory(For Haim Brezis,in continuing admiration)

Chinese Annals of Mathematics,Series B 2017年第2期38卷 379-392页

作者： Lawrence craig evans Department of Mathematics University of CaliforniaBerkeleyUSA.

This paper records for the Hamiltonian H =1/2|p|~2+ W(x) some old and new identities relevant for the PDE/variational approach to weak KAM theory.

关键词： Weak KAM theory, Effective Hamiltonian, Hamiltonian dynamics

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In vitro investigation of the effect of dairy propionibacteria on rumen pH,lactic acid and volatile fatty acids

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Journal of Integrative Agriculture 2017年第7期16卷 1566-1575页

作者： Jianbiao Luo Chaminda Senaka Ranadheera Stuart King craig evans Surinder Baines School of Environmental&Life Sciences The University of NewcastleCallaghan NSW 2308Australia Advanced Food Systems Research Unit College of Health and BiomedicineVictoria UniversityMelbourne VIC 3030Australia School of Health Sciences The University of NewcastleCallaghan NSW 2308Australia

Ruminal acidosis is a prevalent disorder in ruminants such as dairy cows and feedlot beef cattle, caused primarily by the inclusion of a high percentage of readily fermentable concentrates in the diet. The disorder presents as an accumulation of lactic acid, a decrease of pH in the rumen and a subsequent imbalance of the rumen fermentation process with detrimental impacts on the animal＇s health and productivity. Dairy propionibacteria, a group of bacteria characterised by utilization of lactic acid as the favoured carbon source, with propionic acid produced as a by-product, were evaluated in this study as potential direct-fed microbials for use in controlling ruminal acidosis. Acidosis was simulated by introduction of high concentrations of lactic acid into rumen fluid samples and a multi-strain in vitro analysis was conducted, whereby changes in pH and lactic acid metabolism were compared in identical acidified rumen samples, following inoculation with various propionibacteria. This was followed by a study to evaluate the effect of bacterial inoculation dosage on acid metabolism. The results indicated that lactic acid levels in the rumen fluid were significantly reduced, and propionic acid and acetic acid concentrations both significantly increased, following addition of propionibacteria. Significant ＇between strains＇ differences were observed, with Propionibacterium acidopropionici 341, Propionibacterium freudenreichfi CSCC 2207, Propionibacterium jensenfi NCFB 572 and P. jensenii 702 each producing more rapid reduction of lactic acid concentration than P. freudenreich# CSCC 2206, P. acidopropionici ATCC 25562 and Propionibacterium thoenii ATCC 4874. Furthermore, the efficacy of this application was dosage related, with the rates of reduction in lactic acid levels and production of propionic acid, both significantly greater for the higher （10^10 cfu mL-1） compared with lower （10^5 cfu mL-1） dosage inoculation. The results confirmed that the introduction of propion

关键词： probiotics ruminal acidosis lactic acid propionic acid dairy Propionibacterium

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Comparative Bioremediation of Petroleum Hydrocarbon-Contaminated Soil by Biostimulation, Bioaugmentation and Surfactant Addition

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Journal of Environmental Science and Engineering(A) 2012年第5期1卷 637-650页

作者： Elise A. Asquith Phillip M. Geary Annette L. Nolan craig A. evans School of Environmental and Life Sciences The University of Newcastle NSW 2308 Australia Enviropacific Services PrY Ltd. NSW 2297 Australia

A bench-scale biopiling experiment was conducted to hydrocarbon bioremediation in a chronically contaminated soil compare the ability of different techniques to enhance petroleum After 195 days, 10%-32% removal of TPHs （total petroleum hydrocarbons） occurred in unamended soil （control）. Biostimulation by inorganic nutrient addition enhanced TPH removal （49%） confirming that bioremediation was nutrient limited and the soil contained a well-adapted hydrocarbonoclastic microbial community. The addition of organic amendments including green waste at 25% and 50% （w/w） and a commercial product called DaramendTM had a further biostimulatory effect （50%-66%, 34%-59% and 69%-80% TPH removal respectively）. Bioaugmentation using two commercially available petroleum hydrocarbon degrading microbial cultures with nutrients enhanced TPH removal in the case of RemActivTM （60%-69%）, but had a marginal effect using Recycler 102 （49%-55%）. The effect of a non-ionic surfactant in green waste amended soil was variable （52%-72% TPH reduction）, but its potential to enhance biodegradation presumably by promoting contaminant bioavailability was demonstrated. High degradation of artificially added polycyclic aromatic hydrocarbons （PAHs） occurred after 106 days （75%-84%）, but significant differences between the control and treatments were unapparent, suggesting that spiked soils do not reflect the behavior of contaminants in genuinely polluted and weathered soil.

关键词： Bioremediation petroleum hydrocarbons bioaugmentation biostimulation surfactant.

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Cost and accuracy of advanced breeding trial designs in apple

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Horticulture Research 2016年第1期3卷 267-276页

作者： Julia M Harshman Kate M evans craig M Hardner Department of Horticulture Washington State University Tree Fruit Research and Extension CenterWenatchee98801WAUSA Queensland Alliance for Agriculture and Food Innovation University of QueenslandSt Lucia4072QueenslandAustralia

Trialing advanced candidates in tree fruit crops is expensive due to the long-term nature of the planting and labor-intensive evaluations required to make selection *** closely the trait evaluations approximate the true trait value needs balancing with the cost of the *** of field trials of advanced apple candidates in which reduced number of locations,the number of years and the number of harvests per year were modeled to investigate the effect on the cost and accuracy in an operational breeding *** aim was to find designs that would allow evaluation of the most additional candidates while sacrificing the least *** percentage difference,response to selection,and correlated response were used to examine changes in accuracy of trait *** the quality traits evaluated,accuracy and response to selection were not substantially reduced for most trial *** management influences the decision to change trial design,and some designs had greater risk associated with *** cost and accuracy with risk yields valuable insight into advanced breeding trial *** methods outlined in this analysis would be well suited to other horticultural crop breeding programs.

关键词： breeding crops planting

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Modeling of genetic gain for single traits from marker-assisted seedling selection in clonally propagated crops

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Horticulture Research 2016年第1期3卷 257-266页

作者： Sushan Ru craig Hardner Patrick A Carter Kate evans Dorrie Main Cameron Peace Department of Horticulture Washington State UniversityPO Box 646414Pullman99164-6414WAUSA Queensland Alliance for Agriculture and Food Innovation University of QueenslandSt Lucia4072BrisbaneAustralia School of Biological Sciences Washington State UniversityPullman99164-4236WAUSA Department of Horticulture Washington State University Tree Fruit Research and Extension CenterWenatchee98801WAUSA

Seedling selection identifies superior seedlings as candidate cultivars based on predicted genetic potential for traits of ***,genetic potential is determined by phenotypic *** the availability of DNA tests for some agronomically important traits,breeders have the opportunity to include DNA information in their seedling selection operations—known as marker-assisted seedling selection.A major challenge in deploying marker-assisted seedling selection in clonally propagated crops is a lack of knowledge in genetic gain achievable from alternative *** models based on additive effects considering seed-propagated crops are not directly relevant for seedling selection of clonally propagated crops,as clonal propagation captures all genetic effects,not just *** study modeled genetic gain from traditional and various marker-based seedling selection strategies on a single trait basis through analytical derivation and stochastic simulation,based on a generalized seedling selection scheme of clonally propagated *** trait-test scenarios with a range of broad-sense heritability and proportion of genotypic variance explained by DNA markers were simulated for two populations with different segregation *** derived and simulated results indicated that marker-based strategies tended to achieve higher genetic gain than phenotypic seedling selection for a trait where the proportion of genotypic variance explained by marker information was greater than the broad-sense *** from this study provides guidance in optimizing genetic gain from seedling selection for single traits where DNA tests providing marker information are available.

关键词： seedling crops cultivar

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Fish vaccines:current state and future trends

Fish vaccines:current state and future trends

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中国工程院第77场工程科技论坛·2008水产科技论坛——渔业现代化与可持续发展

作者： Phillip H.Klesius craig A.Shoemaker Joyce J.evans Aquatic Animal Health Research Laboratory Agricultural Research ServiceU.S.Department of AgricultureAuburnAlabama 36832 and ChestertownMaryland 21620U.S.A.

A vaccine is a preventive tool used in a health management strategy for the control of infectious diseases in *** more than 100 years,vaccines have proved to be an effective tool for preventing infectious disease outbreaks in humans,poultry and other food *** aquaculture, the development and use of vaccines is now making rapid progress to achieve its full potential as effective disease prevention *** objective of vaccination is to provide a strong immune response to an administered antigen able to provide acquired long-term protection against a *** achieve this objective either a killed or modified live vaccine needs to be developed and licensed for use in fresh or marine water *** type of immunity needed,antibody and/or cell-mediated against,a particular pathogen is among the deciding factors in the development of a *** with a killed bacterial vaccine produces an antibody-mediated protection,but not cell-mediated *** and/or antibody-mediated immunity can be provided only by immunization with a modified live ***,antibody-mediated immunity provided by killed vaccines is relatively short lived in terms of protection(3-5 months).Longer protection(≥12 months)is provided by modified live *** duration of protection may be increased by the addition of an adjuvant to the killed *** adjuvant is a substance that increases specific immune responses against the co-inoculated *** vaccines are usually administered by intraperitonal and/or intramuscular injection of individual *** is the least cost effective in terms of labor and time. Modified live vaccines may be administered by bath immersion to large numbers of fish(fry and/or eggs)which is a more cost effective method of mass vaccination in both labor and *** vaccines are considered to be safer than modified live vaccines which may revert to ***, future trends include oral del

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对话Ross Tran

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艺术教育 2018年第12期 56-62页

作者： Gary evans 无不详茶树网学院

Ross Tran告诉Gary evans,他专科毕业前就已沉浸在＂黑暗世界＂不能自拔,于是便成了按要求供稿的艺术家及You Tube平台红人Ross Tran居住地：美国最崇拜的艺术家：我早期倾向于纯美术与绘画,深受craig Mullins、Leyendecker、Claire Wen... 详细信息

Ross Tran告诉Gary evans,他专科毕业前就已沉浸在＂黑暗世界＂不能自拔,于是便成了按要求供稿的艺术家及You Tube平台红人Ross Tran居住地：美国最崇拜的艺术家：我早期倾向于纯美术与绘画,深受craig Mullins、Leyendecker、Claire Wending、Jaime Jones、Sargent,以及Sergio Toppi等人影响。

关键词：对话 Gary 艺术家居住地毕业专科美术

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