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363篇 您的检索式:作者名="Mitchell L P"
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1Single-atom heterogeneous catalysts based on distinct carbon nitride scaffolds显示文摘Carbon nitrides integrating macroheterocycles offer unique potential as hosts for stabilizing metal atoms due to their rich electronic structure. To date, only graphitic heptazine-based polymers have been studied.Here, we demonstrate that palladium atoms can be effectively isolated on other carbon nitride scaffolds including linear melem oligomers and poly(triazine/heptazine imides). Increased metal uptake was linked to the larger cavity size and the presence of chloride ions in the polyimide structures. Changing the host structure leads to significant variation in the average oxidation state of the metal, which can be tuned by exchange of the ionic species as evidenced by X-ray photoelectron spectroscopy and supported by density functional theory. Evaluation in the semi-hydrogenation of 2-methyl-3-butyn-2-ol reveals an inverse correlation between the activity and the degree of oxidation of palladium, with oligomers exhibiting the highest activity. These findings provide new mechanistic insights into the influence of the carbon nitride structure on metal stabilization.Zupeng Chen Evgeniya Vorobyeva Sharon Mitchell Edvin Fako Núria López Sean M.Collins Rowan K.Leary Paul A.Midgley Roland Hauert Javier Pérez-Ramírez 2018National Science Review2018,5,5:4
2卒中介入治疗培训指南:国际多学会共识文件显示文摘1背景 缺血性卒中是全球人口死亡和残疾的首要原因。很多急性大血管闭塞(emergent large vesselocclusion,ELVO)患者都会遗留长期残疾。事实上,这些颅内大动脉闭塞经常会导致大面积脑损伤,进而造成患者死亡或严重致残。Lavine SD Cockroft K Hoh B Bambakidis N Khalessi AA Woo H Riina H Siddiqui A Hirsch JA Chong W Rice H Wenderoth J Mitchell P Coulthard A Signh TJ Phatorous C Khangure M Klurfan P ter Brugge K Iancu D Gunnarsson T Pongpech S Rodesch G Soderman M Taylor A Krings T Orbach D Picard L Suh DC Zheng HQ Jansen O Muto M Szikora I Pierot L Brouwer P Gralla J Renowden S Andersson T Fiehler J Turjman F White P Januel AC Spelle L Kulcsar Z Chapot R Biondi A Dima S Taschner C Szajner M Krajina A Sakai N Matsumaru Y Yoshknura S Ezura M Fujinaka T Iihara K Ishii A Higashi T Hirohata M Hyodo A Ito Y Kawanishi M Kiyosue H Kobayashi E Kobayashi S Kuwayama N Matsumoto Y Miyachi S Murayama Y Nagata I Nakahara I Nemoto S Niimi Y Oishi H Satomi J Satow T Sugiu K Tanaka M Terada T Yamagami H Diaz O Lylyk P Jayaraman MV Patsalides A Gandhi CD Lee SK Abruzzo T Albani B Ansari SA Arthur AS Baxter BW Bulsara KR Chen M Almandoz JE Fraser JF Heck DV Hetts SW Hussain MS Klucznik RP Leslie-Mawzi TM Mack WJ McTaggart RA Meyers PM Mocco J Prestigiacomo CA Pride GL Rasmussen PA Starke RM Sunenshine PJ Tarr RW Frei DF Pabo M Nogueira RG Zaidat OO Jovin T Linfante I Yavagal D Liebeskind D Novakovic R Pongpech S 许岩 孙瑞 郭芮兵 2017国际脑血管病杂志2017,25,5:2
3Programmed assembly of DNA functionalized quantum dots 显示文摘MITCHELL G P MIRKIN C A LETSINGER R L 1999J Am Chem Soc1999,121,35:1
4A Comparison of Soil Quality Indexing Methods for Vegetable Production Systems in Northern California显示文摘ANDREWS S S KARLEN D L MITCHELL J P 2002Agriculture Ecosystems & Environment2002,90,:1
5The effect of section of the medial collateral ligament on force generated in the anterior cruciate ligament 显示文摘Shapiro M S Markolf K L Finerman G A M Mitchell P W 1991Journal of Bone and Joint Surgery1991,72,:1
6A nitrogen-led model of grass growth显示文摘Sheehy J E Gastal F Mitchell P L 1996Annals of Botany1996,77,:1
7Low density doped foams for ICF long scale length plasma experiments显示文摘Mitchell M A Gobby P L Ellott N E 1995Fusion Technology1995,28,5:1
8Control of peach tree growth and productivity by regulated water supply, tree density and summer pruning显示文摘CHALMERS D J Mitchell P D Heek L 1981J Amer Soc Hort Sci1981,106,3:1
9A comparison of soil quality indexing methods for vegetable production systems in northern California显示文摘Andrews S S Karlen D L Mitchell J P 0,,:1
10Critical nitrogen concentrations:implications for high-yielding rice (Oryza sativa L) cultivars in the tropics显示文摘SHEEHY J E DIONORA M J A MITCHELL P L etal 1998Field Crops Res1998,59,:1
11Matrix cells from Wharton's jelly form neu- rons and glia显示文摘Mitchell KE ML Weiss BM Mitchell P Martin D Davis L Mo- rales B Helwig M Beerenstrauch K Abou - Easa T Hildreth D rroyer and S Medicetty 2003Stem Cells2003,21,:1
12Yeast wall protein 1 of Candida albicans 显示文摘Granger B L Flenniken M L Davis D A Mitchell A P Cutler JE 2005Microbiology2005,151,:1
13Bi-phasic growth patterns in rice显示文摘Sheehy J E Mitchell P L Ferrer A B 2004Annals of Botany2004,94,6:1
14Data Assimilation Using an Ensemble Kalman Filter Technique显示文摘Houtekamer P L Mitchell H L 1998Mon Wea Rev1998,126,:1
15A comparison of soil quality indexing methods for vegetable production systems in Northern California显示文摘Andrews S S Karlen D L Mitchell J P 2002Agriculture Ecosystem Environment2002,90,:1
16Data assimilation using an ensemble Kalman filter technique显示文摘Houtekamer P L Mitchell H L 1998Mon Wea Rev1998,126,:1
17Strategic Applications of Named Reactions in Organic Synthesis显示文摘CAMBIE R C MITCHELL L H RUTLE-qgGE P S 1998Aust J Chem1998,51,15:1
18Terminal care for persons with advanced dementia in the nursing home and home care settings显示文摘Mitchell S L Morris J N Park P S 0,,06:1
19A sequential ensemble Kalman filter for atmospheric data assimilation显示文摘Houtekamer P L H L Mitchell 2001Mon Wea Rev2001,129,:1
20Potential yields and the efficiency of radiation use in rice显示文摘Mitchell L P Sheehy J E 1998IRRI Discussion Paper Series1998,32,:1
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