检索结果-南通市图书馆

cellulose synthesis in land plants

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2024年第2期17卷 359-361页

作者： gustav B.pedersen Leonard Blaschek Kristian E.H.Frandsen Lise c.Noack Staffan Persson 不详

After the original publication of the above article,we and/or attentive readers identified several instances of unclear or erroneous writing that needed correcting,as *** are added for emphasis.

关键词： synthesis instance identif

Electromembrane extraction–Recent trends and where to go

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Pharmaceutical Analysis 2017年第3期7卷 141-147页

作者： Stig pedersen-Bjergaard chuixiu Huang Astrid gjelstad School of Pharmacy University of Oslo Faculty of Health and Medical Sciences School of Pharmaceutical Sciences University of Copenhagen

Electromembrane extraction(EME) is an analytical microextraction technique, where charged analytes(such as drug substances) are extracted from an aqueous sample(such as a biological fluid), through a supported liquid membrane(SLM) comprising a water immiscible organic solvent, and into an aqueous acceptor solution. The driving force for the extraction is an electrical potential(dc) applied across the SLM. In this paper, EME is reviewed. First, the principle for EME is explained with focus on extraction of cationic and anionic analytes, and typical performance data are presented. Second, papers published in 2016 are reviewed and discussed with focus on(a) new SLMs,(b) new support materials for the SLM,(c) new sample additives improving extraction,(d) new technical configurations,(e) improved theoretical understanding, and(f) pharmaceutical new applications. Finally, important future research objectives and directions are defined for further development of EME, with the aim of establishing EME in the toolbox of future analytical laboratories.

关键词： Sample preparation Microextraction Electromembrane extraction

Effect of a 26-month floorball training on male elderly's cardiovascular fitness, glucose control, body composition, and functional capacity

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2018年第2期7卷 149-158页

作者： Mogens Theisen pedersen Jacob Vorup Jens Bangsbo copenhagen centre of Team Sport and Health Department of NutritionExercise and SportsSection of Integrated PhysiologyUniversity of Copenhagen Health Science Research center University College Lillebaelt

Background: Floorball training offers a motivating and socially stimulating team activity for older adults, and 12 weeks of floorball training twice a week among men aged 65—76 years have been shown to have positive effects on a number of physiological parameters important for health. However, the effect of long-term participation in floorball training among male elderly has not been investigated. The aim of the present study was to examine the effect of 26-month self-organized regular participation in floorball training on cardiovascular fitness, body composition, blood lipids, glucose control, and physical function among recreationally active men aged 66—78 ***: After completing a 12-week randomized and controlled intervention with floorball and petanque training in the autumn 2014 or spring2015, 15 subjects chose to participate in floorball training(floorball group, Fg), whereas 16 subjects resumed their usual lifestyle(control group,cg). Fg took part in self-organized floorball training 1.7 sessions of 40 min/week, and cg continued their normal recreationally active lifestyle during a 26-month follow-up period. At baseline and after the follow-up period subjects were tested for cardiovascular fitness, glucose control(resting blood samples), body composition dual-energy X-ray absorptiometry(DXA-scanning), and functional ***: In Fg, the decline in maximal oxygen uptake(VO_(2max)) during the follow-up period was lower(242 ± 379 mL/min, p = 0.01), blood glycosylated hemoglobin(HbA1c) increased less(—1.6 ± 2.9 mmol/L, p = 0.02), and leg bone mineral density increased more(0.03 ± 0.05 g/cm^2,p = 0.02) than those in cg. The effects on body mass, total lean body mass, fat mass, blood lipids, and physical function were similar in Fg and ***: Approximately twice weekly floorball sessions with 40 min/session over 26-month appear to reduce age-related decline in cardiovascular fitness and glucose control and improve leg bone mineral density,

关键词： Bone mineral density Elderly Floorball glucose control VO2max

Understanding the mechanism of capacity increase during early cycling of commercial NMc/graphite lithium-ion batteries

在线全文

学校读者我要写书评

暂无评论

Journal of Energy chemistry 2022年第11期31卷 34-44,I0003页

作者： Jia guo Yaqi Li Jinhao Meng Kjeld pedersen Leonid gurevich Daniel-Ioan Stroe AAU Energy Aalborg UniversityAalborg9220Denmark Department of Materials and Production Aalborg UniversityAalborg 9220Denmark college of Electrical Engineering Sichuan UniversityChengdu 610065SichuanChina

A capacity increase is often observed in the early stage of Li-ion battery *** study explores the phenomena involved in the capacity increase from the full cell,electrodes,and materials perspective through a combination of non-destructive diagnostic methods in a full cell and post-mortem analysis in a coin *** results show an increase of 1%initial capacity for the battery aged at 100%depth of discharge(DOD)and 45℃.Furthermore,large DODs or high temperatures accelerate the capacity *** the incremental capacity and differential voltage(Ic-DV)analysis,we concluded that the increased capacity in a full cell originates from the graphite ***,graphite/Li coin cells show an increased capacity for larger DODs and a decreased capacity for lower DODs,thus in agreement with the full cell ***-mortem analysis results show that a larger DOD enlarges the graphite dspace and separates the graphite layer structure,facilitating the Li+diffusion,hence increasing the battery capacity.

关键词： capacity increasing Lithium-ion battery Full cell coin cell graphite anode

change in the sedimentary environment of Wanquan River Estuary, Hainan Island,china

在线全文

学校读者我要写书评

暂无评论

chinese Science Bulletin 2003年第21期48卷 2357-2361页

作者： gEchendong O.Slaymaker T.F.pedersen MOEKeyLaboratoryforcoastandIslandDevelopment NanjingUniversityNanjing210093China Departmentofgeography TheUniversityofBritishColumbiaVancouverBCV6T1Z2Canada SchoolofEarthandOceanSciences TheUniversityofVictoriaVictoriaBCVSW3P6Canada

Pb geochronology and sediment core profiles of organic carbon, total sulfur and organic carbon isotope (d 13c) values were used to reconstruct the local environ-mental history of the Shamei Lagoon, located in the Wan-quan River Estuary, eastern Hainan Island, china. Totalsulfur and d 13c values decreased upwards in the top 30 cm of a sediment core that spanned the last 200 years of deposi-tion. Total sulfur concentration and d 13c values respectively decreased upward from 1.92% to 0.36%, and -20.63?to -23.64? The c/S ratio in the 19th century and earlier was relatively stable in the range of 0.47—0.80, and there was a positive correlation between organic carbon and total sulfur. Since around 1900 AD, the c/S ratio increased rapidly to a maximum of 3.94, but no simple correlation was found be-tween organic carbon and total sulfur during this more re-cent period. These results indicated that before 1800 AD, the lagoon had a fully marine character, and the location of to-day抯 Wanquan River Estuary was an open *** 1800 to 1900, the salinity of Shamei Lagoon decreased noticeably. The amount of seawater which could enter thelagoon decreased gradually as the Yudai spit grew. Today,seawater scarcely affects the lagoon; it is essentially a fresh-water basin.

关键词：海南岛中国有机碳铅氢化硫水污染 ^210Pb

A Lesion-Mimic Syntaxin Double Mutant in Arabidopsis Reveals Novel complexity of Pathogen Defense Signaling

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2008年第3期1卷 510-527页

作者： Ziguo Zhang Andrea Lenk Mats X. Andersson Torben gjetting carsten pedersen Mads E. Nielsen Mari-Anne Newman Bi-Huei Hou Shauna c. Somerville Hans Thordal-christensen Plant and Soil Science Dept of Agricultural Sciences Faculty of Life Sciences University of Copenhagen Thorvaldsensvej 40 DK-1871 Frederiksberg CDenmark Dept of Plant Bioloqy Carneqie Institution Stanford CA 94305 USA Plant Pathology Dept of Plant Biology Faculty of Life Sciences University of Copenhagen Thorvaldsensvej 40 DK-1871 Frederiksberg C Denmark Research Laboratory Carlsberg Research Center GL Carlsbergvej 10 DK-2500 Valby Copenhagen Denmark

The lesion-mimic Arabidopsis mutant, syp121 syp122, constitutively expresses the salicylic acid （SA） signaling pathway and has low penetration resistance to powdery mildew fungi. genetic analyses of the lesion-mimic phenotype have expanded our understanding of programmed cell death （PcD） in plants. Inactivation of SA signaling genes in syp121 syp122 only partially rescues the lesion-mimic phenotype, indicating that additional defenses contribute to the PcD. Whole genome transcriptome analysis confirmed that SA-induced transcripts, as well as numerous other known pathogenresponse transcripts, are up-regulated after inactivation of the syntaxin genes. A suppressor mutant analysis of syp121 syp122 revealed that FMO1, ALD1, and PAD4 are important for lesion development Mutant alleles of EDS1, NDR1, RAR1, and SgTlb also partially rescued the lesion-mimic phenotype, suggesting that mutating syntaxin genes stimulates TIR-NB-LRR and cc-NB-LRR-type resistances. The syntaxin double knockout potentiated a powdery mildew- induced HR-like response. This required functional PAD4 but not functional SA signaling. However, SA signaling potentiated the PAD4-dependent HR-like response. Analyses of quadruple mutants suggest that EDS5 and SID2 confer separate SA-independent signaling functions, and that FMO1 and ALD1 mediate SA-independent signals that are NPRl-dependent. These studies highlight the contribution of multiple pathways to defense and point to the complexity of their interactions.

关键词： SYSTEMIc AcQUIRED-RESISTANcE HYPERSENSITIVE cELL-DEATH FLAVIN-cONTAININg MONOOXYgENASE SALIcYLIc-AcID DISEASE RESISTANcE

genotype specific peripheral lipid profile changes with hepatitis c therapy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of gastroenterology 2016年第46期22卷 10226-10231页

作者： Mark R pedersen Amit Patel David Backstedt Myunghan choi Anil B Seetharam Department of Internal Medicine Banner University Medical Center University of Arizona College of Medicine Phoenix AZ 85006 United States Department of gastroenterology Banner University Medical Center University of Arizona College of Medicine Phoenix AZ 85006 United States Arizona State University college of Nursing and Health care Innovation Banner Phoenix AZ 85006 United States Transplant and Advanced Liver Disease center University of Arizona College of Medicine Phoenix AZ 85006 United States

AIM To evaluate magnitude/direction of changes in peripheral lipid profiles in patients undergoing direct acting therapy for hepatitis c by *** Mono-infected patients with hepatitis c were treated with guideline-based DAAs at a university-based liver clinic. Patient characteristics and laboratory values were collected before and after the treatment period. Baseline demographics included age, ethnicity, hypertension, diabetes, hyperlipidemia, treatment regimen, and fibrosis stage. Total cholesterol(TcHOL), high density lipoprotein(HDL), low density lipoprotein(LDL), triglycerides(Tg), and liver function tests were measured prior to treatment and ETR. changes in lipid and liver function were evaluated by subgroups with respect to genotype. Mean differences were calculated for each lipid profile and liver function component(direction/magnitude). The mean differences in lipid profiles were then compared between genotypes for differences in direction/magnitude. Lipid profile and liver function changes were evaluated with Levene's test and student's t test. Mean differences in lipid profiles were compared between genotypes using ANOVA, post hoc analysis via the Bonferroni correction or Dunnett *** Three hundred and seventy five patients enrolled with 321(85.6%) achieving sustained-viral response at 12 wk. 72.3% were genotype 1(gT1), 18.1% genotype 2(gT2), 9.7% genotype 3(gT3). Baseline demographics were similar. Significant change in lipid profiles were seen with gT1 and gT3(ΔgT1, p and ΔgT3, p), with TcHOL increasing(+5.3, P = 0.005 and +16.1, P creasing(+12.5, P creasing(+7.4, P = 0.058 and +12.5, P g decreasing(-5.9, P = 0.044 and-9.80 P = 0.067). Among genotypes(ΔgT1 v. ΔgT2 v. ΔgT3, ANOVA), significant mean differences were seen with TcHOL(+5.3 v. +0.1 v. +16.1, P = 0.017) and HDL(+12.3 v. +2 v. +7.9, P = 0.040). Post-hoc, gT3 was associated with a greater increase in TcHOL than gT

关键词： Hepatitis c genotypes Lipids Metabolic syndrome

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

抗返流疗法治疗声嘶的系统评价

中国循证医学杂志 2006年第7期6卷 500-506页

作者： c Hopkins U Yousaf M pedersen 4 Normand gardens West Kensington London UK W14 9SB

目的通过全面检索前瞻性随机对照研究，系统评价在无其它明显病因时，抗返流疗法（药物或手术均可）治疗声嘶患者的疗效（无论是否确诊咽喉返流或胃食管返流）。方法用事先确定的关键词检索cochrane ENT组临床试验注册库、cochrane临床... 详细信息

目的通过全面检索前瞻性随机对照研究，系统评价在无其它明显病因时，抗返流疗法（药物或手术均可）治疗声嘶患者的疗效（无论是否确诊咽喉返流或胃食管返流）。方法用事先确定的关键词检索cochrane ENT组临床试验注册库、cochrane临床对照试验中心注册库（cENTRAL）（cochrane图书馆2005年第3期）、MEDLINE（1966～2005）、EMBASE（1974—2005）及会议论文集。检索时间更新至2005年9月。研究对象为无其它明显病因（如恶性肿瘤、声带麻痹或结节），无论是否确诊咽喉返流或胃食管返流的声嘶患者的随机对照试验。由三名评价者浏览检索结果，筛选试验，以决定是否纳入本系统评价。结果共检索到302项试验，但均不符合本评价纳入标准。其中有6项随机对照试验，报告其部分研究对象有声嘶症状，采用了质子泵抑制剂治疗。但我们无法确定其他研究对象的喉部症状是否包括声嘶，因此排除这些试验。但这些试验显示安慰剂也有明显效果，在某些试验中与抗返流疗法疗效相当。由于没有符合纳入标准的试验，对抗返流疗法治疗声嘶的疗效我们无法得出明确结论。结论尚需高质量随机对照试验评价抗返流疗法对可能因咽喉返流或胃食管返流所致的声嘶的疗效。

关键词：声嘶抗反酸治疗随机对照试验系统评价

Early dynamics in plant community trait responses to a novel, more extreme hydrological gradient

在线全文

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2019年第2期12卷 327-335页

作者： Andrea Oddershede cyrille Violle Annette Baattrup-pedersen Jens-christian Svenning christian Damgaard Section for Plant and Insect Ecology Department of BioscienceAarhus UniversityVejlsøvej 25DK-8600 SilkeborgDenmark Section for Ecoinformatics&Biodiversity Department of BioscienceAarhus UniversityNy Munkegade 114DK-8000 Aarhus CDenmark cEFE UMR 5175 CNRS-Universitéde Montpellier-UniversitéPaul-Valéry MontpellierEPHE-1919 route de MendeF-34293 MontpellierCEDEX 5France Section for Stream and Wetland Ecology Department of BioscienceAarhus UniversityVejlsøvej 25DK-8600 SilkeborgDenmark

Aims For temperate regions such as Northern Europe,predicted climate change patterns include an increase in winter precipitation causing increased risk of flooding,whereas periods of droughts will become more frequent in *** aim of this study is to explore vari-ations in plant functional trait distributions along a hydrological gradient spanning from recurrent drought events to recurrent flood-ing-mimicking future precipitation *** The experiment was conducted in a controlled grassland experi-ment over a period of 3 years.A novel and more extreme hydro-logical regime was achieved by manipulating the flow of a nearby stream thereby creating a continuous hydrological gradient from flooding during winter to drought during *** commu-nity responses were recorded along this hydrological ***-weighted trait distribution changes along the gradient were described using null *** functional traits were con-sidered:seed mass,leaf dry matter content(LDMc),leaf area,leaf thickness,specific leaf area(SLA)and *** findings Over time,responses in plant functional traits changed at the community *** the study period consistent changes occurred in the mean trait value of several *** in relatively dry plots became dominated by species with water-conserving life strategies,represented by high seed mass and thick *** contrast,disturbance-resistant species(high leaf dry matter content)became dominant in flooded plots,indicating that persistence to flooding was the most important factor control-ling the functional structure in those ***,a high abundance of small-seeded species in flooded plots likely indicates higher frequency of species with higher dispersal ability through *** conclusion,plant traits are useful for predicting responses to climate change,but abrupt and extreme climate event may cause unexpected responses because they have no analog to previously more sta

关键词： functional diversity trait-environment relationship hydrology extreme events flooding