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临床皮肤科杂志 1999年第5期28卷 328-329页

作者： pier.,mp 刘季和中国医学科学院皮肤病研究所

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早期鲜卑人和动物骨骼的稳定同位素分析

人类学学报 2017年第1期36卷 110-118页

作者：张国文陈凤山孙祖栋 richards mp 南开大学历史学院考古学与博物馆学系天津300071 呼伦贝尔民族博物馆海拉尔021008 扎赉诺尔区文管所满洲里021410 Department of Anthropology University of British Columbia

本文对呼伦贝尔地区扎赉诺尔、团结和东乌珠尔早期鲜卑墓地出土的人和动物骨骼进行了稳定同位素分析,以期揭示早期鲜卑的食物结构和生计方式。C、N稳定同位素分析结果表明,早期鲜卑人的食物来源兼具C_3类和C_4类,其中C_4类食物很可能来... 详细信息

本文对呼伦贝尔地区扎赉诺尔、团结和东乌珠尔早期鲜卑墓地出土的人和动物骨骼进行了稳定同位素分析,以期揭示早期鲜卑的食物结构和生计方式。C、N稳定同位素分析结果表明,早期鲜卑人的食物来源兼具C_3类和C_4类,其中C_4类食物很可能来自其从事的少量粟作农业。人具有较高的δ^(15)N值,且与动物的δ^(15)N值差异较大,表明人的营养级较高,肉食资源在食物结构中占据较大比重,这可能来自于早期鲜卑人所从事的游牧及狩猎经济的贡献。C、N、S稳定同位素分析结果表明,动物和人的食物来源来自于当地的陆生系统,而个体马(DW M3(1))具有较高的δ^(13)C和δ^(15)N值以及明显不同于其他样品的异常高的δ^(34)S值,说明此个体可能属于来自于其他地质环境的"外来者"。

关键词：早期鲜卑碳、氮、硫稳定同位素食物结构生计方式粟作农业游牧经济

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云朵里的花期

Quantum Stabilization of general-relativistic Variable-Density Degenerate Stars

作者： mp520·粉红兔

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Journal of Modern physics 2012年第7期3卷 561-569页

作者： David Eric Cox ronald L. Mallett mp Silverman Department of physics Trinity College Hartford CT Department of physics University of Connecticut Storrs CT

research by one of the authors suggested that the critical mass of constant-density neutron stars will be greater than eight solar masses when the majority of their neutrons group into bosons that form a Bose-Einstein condensate, provided the bosons interact with each other and have scattering lengths on the order of a picometer. That analysis was able to use Newtonian theory for the condensate with scattering lengths on this order, but general relativity provides a more fundamental analysis. In this paper, we determine the equilibrium states of a static, spherically-symmetric variable-density mixture of a degenerate gas of noninteracting neutrons and a Bose-Einstein condensate using general relativity. We use a Klein-gordan Lagrangian density with a gross-pitaevskii term for the condensate and an effective field for the neutrons. We show that a new class of compact stars can exist with masses above the Oppenheimer-Volkoff limit, provided the scattering length of the bosons is large enough. These stars have no internal singularities, obey causality, and demonstrate a quantum mechanism consistent with general relativity that could prevent collapsed stars from becoming black holes.

关键词： gravity general relativity Neutron Stars Black Holes Bose-Einstein Condensates Numerical physics

致病性大肠杆菌、小肠结肠炎耶尔森氏菌和副溶血性弧菌的研究进展

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国外医学（流行病学．传染病学分册） 1991年第2期18卷 68-72页

作者： Doyle mp 万谟彬

食物源性疾病的主要病原有致病性大肠杆菌(包括EpEC、EIEC、ETEC和EHEC)、小肠结肠炎耶尔森氏菌和副溶血性弧菌。本文就这些食物源性疾病的有关流行病学、发病机理和预防措施等方面的研究进展作一简要综述。

关键词：大肠杆菌副溶血性弧菌耶尔森氏菌

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新西兰的牧草种子生产

世界农业 1994年第11期 18-20页

作者：韩建国 roln.,mp 北京农业大学草地研究所

新西兰的牧草种子生产北京农业大学草地研究所韩建国［新西兰］Ｍ．Ｐ．Ｒｏｌｓｔｏｎ新西兰牧草种子生产已有１００多年的历史，近５０年牧草种子平均年产量保持在２．２万ｔ左右。近年来牧草种子的年收入平均为４０００万新元（相当... 详细信息

新西兰的牧草种子生产北京农业大学草地研究所韩建国［新西兰］Ｍ．Ｐ．Ｒｏｌｓｔｏｎ新西兰牧草种子生产已有１００多年的历史，近５０年牧草种子平均年产量保持在２．２万ｔ左右。近年来牧草种子的年收入平均为４０００万新元（相当于２亿人民币）。牧草种子除满足本国...

关键词：新西兰牧草种子生产产量

Bacterial direct-fed microbials fail to reduce methane emissions in primiparous lactating dairy cows

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Journal of Animal Science and Biotechnology 2019年第3期10卷 802-810页

作者： Jeyamalar Jeyanathan Cecile martin Maguy Eugene Anne Ferlay Milka popova Diego p.Morgavi Universite Clermont Auvergne INRAVetAgro SupUMR 1213 HerbivoresF-63122 Saint-Genes-ChampanelleFrance Laboratory for Animal Nutrition and Animal product Quality Faculty of Bioscience EngineeringGhent UniversityCoupure Links 6539000 GhentBelgium

Direct-fed microbials(DFM) are considered as a promising technique to improve animal productivity without affecting animal health or harming the *** potential of three bacterial DFM to reduce methane(CH4)emissions,modulate ruminal fermentation,milk production and composition of primiparous dairy cows was examined in this *** previous reports have shown that DFM respond differently to different diets,two contrasting diets were used in this *** lactating primiparous cows were randomly divided into two groups that were fed a corn silage-based,high-starch diet(HSD) or a grass silage-based,high-fiber diet(HFD).Cows in each dietary group were randomly assigned to four treatments in a 4 × 4 Latin square *** bacterial DFM used were selected for their proven CH4-reducing effect in *** included control(without DFM) and 3 DFM treatments: propionibacterium freudenreichii 53-W(2.9 × 10^10 colony forming units(CFU)/cow per day),Lactobacillus pentosus D31(3.6 × 10^11 CFU/cow per day) and Lactobacillus bulgaricus D1(4.6 × 10^10 CFU/cow per day).Each experimental period included 4 weeks of treatment and 1 week of wash-out,with measures performed in the fourth week of the treatment *** CH4 emissions were measured during 3 consecutive days using respiration *** samples were collected for ruminal fermentation parameters and quantitative microbial *** samples were collected for composition *** weight of cows were recorded at the end of each treatment *** of diet,no mitigating effect of DFM was observed on CH4 emissions in dairy *** contrast,propionibacterium increased CH4 intensity by 27%(g CH4/kg milk) in cows fed *** was no effect of DFM on other fermentation parameters and on bacterial,archaeal and protozoal ***,the effect of DFM on milk fatty acid composition was *** and *** DFM tended to increase body weight gain with ***

关键词： Bacterial direct-fed microbial Dairy cow Methane Milk fatty acid

Selective catalytic reduction of nitrogen oxides over a modified silicoaluminophosphate commercial zeolite

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Journal of Environmental Sciences 2018年第3期30卷 246-252页

作者： Carolina petitto gérard Delahay Institut Charles gerhardt Montpellier UMR 5253 CNRS/UM/ENSCM Matériaux Avancés pour la Catalyse et la Santé 8 rue de l'Ecole Normale

Nitrogen oxides（NOx：NO,NO2）are a concern due to their adverse health *** engine transport sector is the major emitter of *** regulations have been strengthened and to comply with them,one of the two methods commonly used is the selective catalytic reduction of NOxby NH3（NH3-SCr）,NH3being supplied by the in-situ hydrolysis of *** and durability of the catalyst for this process are highly *** is evaluated by hydrothermal treatment of the catalysts at temperature above 800℃.In this study,very active catalysts for the NH3-SCr of NOxwere prepared by using a silicoaluminophosphate commercial zeolite as copper host *** by X-ray diffraction（XrD）,scanning electron microscopy（SEM）and temperature programmed desorption of ammonia（NH3-TpD）showed that this commercial zeolite was hydrothermally stable up to 850℃ and,was able to retain some structural properties up to950℃.After hydrothermal treatment at 850℃,the NOxreduction efficiency into NH3-SCr depends on the copper *** catalyst with a copper content of 1.25 wt.%was the most *** difference in activity was much more important when using NO than the fast NO/NO2reaction mixture.

关键词： Diesel Nitrogen oxides SCr process Copper Zeolite Silicoaluminophosphate

Using pharmacokinetic Modeling and Electronic Health record Data to predict Clinical and Safety Outcomes after Methylprednisolone Exposure during Cardiopulmonary Bypass in Neonates

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Congenital Heart Disease 2023年第3期18卷 295-313页

作者： Henry p.Foote Huali Wu Stephen J.Balevic Elizabeth J.Thompson Kevin D.Hill Eric M.graham Christoph p.Hornik Karan r.Kumar Department of pediatrics Duke UniversityDurhamUSA Duke Clinical research Institute DurhamUSA Department of pediatrics Medical University of South CarolinaCharlestonUSA

Background:Infants undergoing cardiac surgery with cardiopulmonary bypass(CpB)frequently receive intraoperative methylprednisolone(mp)to suppress CpB-related inflammation;however,the optimal dosing strategy and efficacy of mp remain ***:We retrospectively analyzed all infants under 90 days-old who received intra-operative mp for cardiac surgery with CpB from 2014–2017 at our *** combined real-world dosing data from the electronic health record(EHr)and two previously developed population pharmacokinetic/pharmacodynamic models to simulate peak concentration(Cmax)and area under the concentration-time curve for 24 h(AUC24)for mp and the inflammatory cytokines interleukin-6(IL-6)and interleukin-10(IL-10).We evaluated the relationships between post-operative,safety,and other clinical outcomes obtained from the EHr with each predicted exposure using non-parametric ***:A total of 142 infants with median post-natal age 8(interquartile range[IQr]:5,37)days received a total dose of 30(19,49)mg/kg of ***(8%)died,37(26%)met the composite post-operative outcome,114(80%)met the composite safety outcome,and 23(16%)had a major *** median Cmax and AUC24 IL-6 exposure was significantly higher for infants meeting the composite post-operative outcome and those with major *** median Cmax and AUC24 mp exposure was significantly higher for infants requiring *** exposure was associated with death or other safety ***:pro-inflammatory IL-6,but not mp exposure,was associated with post-operative organ dysfunction,suggesting current mp dosing may not adequately suppress IL-6 or increase IL-10 to impact clinical *** study will be required to define the optimal exposure-efficacy and exposure-safety profiles in these infants.

关键词： Neonates cardiopulmonary bypass methylprednisolone exposure

Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey

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环境科学与工程前沿(英文) 2023年第8期17卷 95-105页

作者： pelin Koyuncuoğlu gülbin Erden Environmental Engineering Department Engineering FacultyPamukkale UniversityKınıklıCampusDenizli 20160Turkey

plastic particles smaller than 5 mm are *** are among the significant pollutants that recently attracted *** quantities of microplastics enter the sewage system daily and reach wastewater treatment plants(WWTps).As a result,WWTps are potential microplastic ***,they create a pathway for microplastics to reach aquatic environments with treated wastewater *** on microplastic characterization in WWTps have gained momentum in *** study investigates the abundance,size,shape,color,polymer type,and removal efficiencies of microplastics in a municipal wastewater treatment plant(WWTp)in Denizli/*** results showed that the dominant microplastic shape in wastewater samples was fibers(41.78%–60.77%)in the 100–500μm(58.57%–80.07%)size *** of the microplastics were transparent-white(32.86%–58.93%).The dominant polymer types were polyethylene(54.05%)and polyethylene vinyl acetate(37.84%)in raw ***,the microplastic removal efficiencies of the Denizli Central WWTp as a whole and for individual treatment units were *** the microplastic pollution removal efficiency of the Denizli Central WWTp was over 95%,the microplastic concentration discharged daily into the receiving environment was considerably high(1.28×1010 mp/d).Thus,Denizli Central WWTp effluents result in a high volume of emissions in terms of microplastic pollution with a significant daily discharge to theÇürüksu Stream.

关键词： Microplastics Wastewater treatment plant removal efficiency Daily discharge