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| 1 | 利用稳定性^65Cu稀释技术测定长期施用有机肥土壤中不同pH条件下铜的E-值及L-值显示文摘准确评价铜的有效性对预测长期施用有机肥土壤中铜的生态风险及其环境质量标准的修订具有十分重要意义.根据稳定性65Cu稀释原理,利用黑麦草和蚯蚓为供试生物,对长期施用有机肥土壤中铜的同位素可交换性(E-值)、生物有效性(L-值)及pH变化对E-值、L-值的影响进行了研究.试验结果表明,以黑麦草测定的铜的L-值与铜的E-值基本相等,二者间有很高的正相关关系(R2=0.98),不同pH处理土壤中铜的L-值占土壤全铜含量变化为15.9%~21.6%,土壤中铜的L-值、E-值随pH的上升而显著下降;而利用蚯蚓测定铜的L-值小于土壤中铜的E-值和蚯蚓肠溶物中铜的E-值;蚯蚓的活动明显增加了土壤中铜的迁移、转化特性,调节土壤pH状况可以有效控制土壤中铜的生物有效性从而降低其向食物链的迁移转化. | 陈世宝 马义兵 Enzo,Lombi Mike,J.McLaughlin | 2011 | 化学学报2011,69,4: | 2 |
| 2 | Ontogeny of the opioid growth factor, [Met<sup>5</sup>]‐enkephalin, preproenkephalin gene expression, and the ζ opioid receptor in the developing and adult aorta of rat显示文摘 | YanWu Patricia J.Mclaughlin Ian S.Zagon | 1998 | Dev Dyn1998,,4: | 1 |
| 3 | Patients’ knowledge of pregnancy‐related issues in inflammatory bowel disease and validation of a novel assessment tool (‘CCPKnow’)显示文摘 | J.Eaden D. B.Jones G.Chapman J.McLaughlin S.Lal | 2012 | Aliment Pharmacol Ther2012,,1: | 1 |
| 4 | Nanomaterials in the environment: Behavior, fate, bioavailability, and effects显示文摘 | Stephen J.Klaine Pedro J. J.Alvarez Graeme E.Batley Teresa F.Fernandes Richard D.Handy Delina Y.Lyon ShailyMahendra Michael J.McLaughlin Jamie R.Lead | 2009 | Environmental Toxicology and Chemistry2009,,9: | 1 |
| 5 | Magnesium-fortified phosphate fertilizers improve nutrient uptake and plant growth without reducing phosphorus availability显示文摘Magnesium(Mg)deficiency can significantly limit crop yield and quality.Separate application of straight Mg fertilizer is unattractive because of additional labor costs.Meanwhile,bulk blending Mg with other macronutrient fertilizers is also a suboptimal solution because bulk blended fertilizers often yield poor nutrient distributions.One rapid and economical alternative to alleviating Mg deficiency is to co-granulate macronutrient fertilizers with Mg.However,few commercial products have implemented this approach.One of the barriers hindering the production of Mg-fortified phosphorus(P)fertilizers is the assumption that precipitation of P with Mg will reduce P solubility.In this study,four Mg compounds,anhydrous magnesium sulfate(MgSO_(4)),magnesium oxide(MgO),anhydrous magnesium chloride(MgCl_(2)),and dolomite(CaMg(CO_(3))_(2)),were co-granulated with mono-ammonium phosphate(MAP),and their granule strength,Mg and P availabilities,and agronomic effectiveness were evaluated.Results showed that there were no significant differences in P solubility between Mg-fortified MAP and MAP treatments.X-ray diffraction(XRD)indicated that the Mg species after co-granulation were boussingaultite(Mg(NH_(4))_(2)(SO_(4))_(2)·6H_(2)O),schertelite(Mg(NH_(4))_(2)H_(2)(PO_(4))_(2)·4H_(2)O),magnesium hydrogen phosphate(Mg(H_(2)PO_(4))_(2)),and dolomite(CaMg(CO_(3))_(2)).A pot experiment using an acidic soil demonstrated an average 9.6-fold increase in shoot Mg uptake,3.0-fold increase in shoot P uptake,and 3.2-fold increase in soybean shoot dry matter in Mg-fortified MAP treatments,compared to those in MAP treatment.The current study provides a simple,effective,and low-cost approach for the addition of Mg to macronutrient fertilizers,to minimize Mg deficiency. | Zhenya LU Yanyan WANG Fien DEGRYSE Chengdong HUANG Cuihong HOU Liangquan WU Rongfeng JIANG Michael J.MCLAUGHLIN Fusuo ZHANG | 2022 | Pedosphere2022,32,5: | 0 |
| 6 | Efficiency of soil-applied ^(67)Zn-enriched fertiliser across three consecutive crops显示文摘A very small amount of applied zinc(Zn) is taken up by crops, resulting in low recovery by plants. Adding elemental sulphur to zinc oxide(ZnO) fertiliser could improve Zn solubilisation and exert a higher residual effect on crops than soluble Zn sources. We produced an isotopically labelled Zn-elemental sulphur fertiliser and evaluated its performance in comparison to traditional Zn sources during sequential crop cultivation. Three ^(67)Zn-labelled fertilisers,ZnO, zinc sulphate(ZnSO_(4)), and ZnO co-granulated with elemental sulphur(ZnOS^(0)), were soil applied, and their contributions to the uptake of Zn by three consecutive crops, wheat, ryegrass, and corn, were assessed in a 294-d pot experiment. The contributions of Zn fertilisers followed the order: ZnSO_(4) > ZnO= ZnOS^(0). The relative contributions of Zn fertilisers were lower in the first crop than in the subsequent crops. The overall recovery of applied Zn by the three crops was higher for ZnSO_(4) than for ZnO and ZnOS^(0), reaching 1.56%, 0.45%, and 0.33% of the applied Zn, respectively. Zinc recovery by plants was very low, regardless of the source of Zn. Adding elemental sulphur to ZnO did not increase its effectiveness up to 294 d after application. Fertiliser contribution was higher for the subsequent crops than for the initial crop, indicating the importance of assessing the residual effects of Zn fertilisers. | Edson M.MATTIELLO Eduardo L.CANCELLIER Rodrigo C.DA SILVA Fien DEGRYSE Roslyn BAIRD Mike J.MCLAUGHLIN | 2021 | Pedosphere2021,31,4: | 0 |
| 7 | Physical Characteristics Explain Ball-Carrying Capability in Sub-Elite Rugby Union Players显示文摘Purpose The aims of the present study were two-fold:(i)to investigate the relationship between physical characteristics and the game statistics associated with ball-carrying capability amongst sub-elite rugby union players,and(ii)to predict the level of change in these physical characteristics required to improve the associated game statistic via regression analysis.Methods Thirty-eight senior professional players(forwards,n=22;backs,n=16)were assessed for body mass(BM),back squat(BS)single-repetition maximum(1RM)normalised to BM(1RM/BM),10 m sprint velocity(S10),10 m sprint momentum(SM10),and the game statistics from 22 games within the 2019/20 RFU Championship season.The relationship between these measures and the predicted level of change in a physical measure required to improve the total number of the associated game statistic by one were assessed by Pearson’s correlation coefficient and simple regression analyses.Results In forwards,an~11.5%reduction in BM,an~11.8%improvement in BS 1RM/BM,or an~11.5%increase in S10 was required to improve the game statistics associated with ball-carrying capability.In backs,a~19.3%increase in BM or a~15.6%improvement in SM10 was required.Conclusions These findings demonstrate that improvements in lower-body relative strength,acceleration performance,and position-specific alterations in body mass are required to maximise the ball-carrying capability and therefore match outcome of sub-elite rugby union players. | Alexander S.Hart Robert M.Erskine Tom J.Mclaughlin David R.Clark | 2023 | Journal of Science in Sport and Exercise2023,5,3: | 0 |