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| 1 | 口服低衰减胃肠道造影剂在腹盆部CT中的应用显示文摘Background: We designed and evaluated a low-attenuation oral contrast agent for abdominal-pelvic computed tomography (CT). Methods: In vitro studies, were performed initially to evaluate the imaging characteristics of multiple solutions. These studies resulted in two solutions being compared with the presently accepted oral CT agents of dilute iodinated contrast and water. Ninety-eight consec utive subjects already scheduled for routine outpatient abdominal-pelvic CT were enrolled. Subjects were randomized to water (n = 30), fiber solution (n = 32), polyethylene glycol (PEG; n = 11), or dilute iodinated solution (DI; n = 25). Examinations were then evaluated for gastric distention, small bowel distention, small bowel wall visualization, and colonic transit. A questionnaire was given to the study subjects for feedback concerning taste and potential side effects from these agents. Results: PEG tended to provide better bowel distention, wall visualization, and colonic transit compared with water, fiber solution, and DI. Areas of statistical significance included: (1) average bowel diameter in the left upper quadrant for water was 17.50 mm, whereas that for PEG was 21.88 mm (p < 0.05); (2) average bowel diameter in the pelvis for water was 14.79mm, that for fiber was 15.67mm, and that for PEG was 18.48 mm (p < 0.05); (3) wall visualizati on was better with PEG than with fiber (p < 0.05); (4) successful transit of contrast to the colon occurred in every subject who received PEG compared with only 20%of those received water and 39%of those who received fiber (p < 0.05). Similar trends for the superiority of PEG over DI were noted, although many of these did not reach statistical significance. Conclusion: PEG solution has imaging characteristics related to bowel wall visualization, luminal distention, and colonic transit that make it an effective oral agent for abdominal pelvic CT examination. | Hebert J.J Taylor A.J Winter T.C. 赵双 | 2006 | 世界核心医学期刊文摘(胃肠病学分册)2006，0，4： | 5 |
| 2 | The DSSAT cropping system model显示文摘 | J.W Jones G Hoogenboom C.H Porter K.J Boote W.D Batchelor L.A Hunt P.W Wilkens U Singh A.J Gijsman J.T Ritchie | 2002 | European Journal of Agronomy2002，，3： | 4 |
| 3 | A comparison of the abrasive wear behaviour of HVOF sprayed titanium carbide- and titanium boride-based cermet coatings显示文摘 | M Jones A.J Horlock P.H Shipway D.G McCartney J.V Wood | 2001 | Wear2001，，1： | 3 |
| 4 | Recent development in aluminium alloys for the automotive industry显示文摘 | W.S Miller L Zhuang J Bottema A.J Wittebrood P De Smet A Haszler A Vieregge | 2000 | Materials Science & Engineering A2000，，1： | 3 |
| 5 | Metal complexation by chitosan and its derivatives: a review显示文摘 | A.J Varma S.V Deshpande J.F Kennedy | 2003 | Carbohydrate Polymers2003，，1： | 3 |
| 6 | 直接挤压成形生物医用镁合金细丝(英文)显示文摘生物可降解丝可为各种生物医学应用提供承重支撑,是目前生物材料研究的新趋势。通过直接挤压制备出直径为250μm的99.92%镁丝,挤压比达1:576。单个加工步骤的总施加应变为6.36。挤压温度为230~310℃,挤压速度为0.2~0.5 mm/s。得到的金属丝具有良好的力学性能,其力学性能随挤压参数的变化而变化。室温下最大真拉应力可达228 MPa,塑性可达13%。结果表明,单步直接挤压法是一种有效的生产具有足够性能的生物医用镁丝的方法。断口分析表明,镁丝的失效可能与夹杂物(如MgO颗粒)密切相关。由于挤压温度低而导致的晶粒尺寸细小,是影响镁丝拉伸性能的主要参数。 | K.TESAŘ K.BALÍK Z.SUCHARDA A.JÄGER | 2020 | Transactions of Nonferrous Metals Society of China2020，30，2： | 3 |
| 7 | Differential heat of adsorption in the presence of an order–disorder phase transition显示文摘 | A.J Ramirez-Pastor F Bulnes | 2000 | Physica A: Statistical Mechanics and its Applications2000，，1： | 2 |
| 8 | Particulate fouling of surface microfilters with slotted and circular pore geometry显示文摘 | A.J Bromley R.G Holdich I.W Cumming | 2002 | Journal of Membrane Science2002，，1： | 2 |
| 9 | The DSSAT cropping system model显示文摘 | J.W Jones G Hoogenboom C.H Porter K.J Boote W.D Batchelor L.A Hunt P.W Wilkens U Singh A.J Gijsman J.T Ritchie | 2002 | European Journal of Agronomy2002，，3： | 2 |
| 10 | Quantification of Laves phase particle size in 9CrW steel显示文摘 | Leona Korcakova John Hald Marcel A.J Somers | 2001 | Materials Characterization2001，，2： | 2 |
| 11 | Nebkha dunes in the Molopo Basin, South Africa and Botswana: formation controls and their validity as indicators of soil degradation显示文摘 | A.J Dougill A.D Thomas | 2002 | Journal of Arid Environments2002，，3： | 2 |
| 12 | A randomized trial of endoscopic balloon dilation and endoscopic sphincterotomy for removal of bile duct stones in patients with a prior Billroth II gastrectomy显示文摘 | Jacques J.G.H.M Bergman Anne-Marie van Berkel Marco J Bruno Paul Fockens Erik A.J Rauws Jan G.P Tijssen Guido N.J Tytgat Kees Huibregtse | 2001 | Gastrointestinal Endoscopy2001，，1： | 2 |
| 13 | 长江口可溶态^(210)Pb的来源、分布和逗留时间显示文摘于1986年1月,采取大体积取样,Co-APDC螯合共沉淀富集分离,银片上自沉积和α-计算分析,研究长江口区可溶态210Pb的来源、分布和逗留时间、结果表明,全区平均放射性比度为7.5dpm/m3,从河向海纵向分布呈口内段和近外海两端高,而低谷出现在中间的口门外最大浊度及稀释带高生产力区。210Pb明显因悬浮颗粒物的吸附絮凝沉降和浮游生物的吸收利用被清除。经探析,该区210Pb主要来源是大气气溶胶的沉降;水体中226Ra母体衰变的仅占0.68%;径流水携带的几乎可以忽略。全区可溶态的210Pb和稳定Pb的逗留时间为3.33d,而在最大浊度带仅为2.65d,比大洋区小3-4个数量级。说明该区水体对可溶态Pb及其性质类似的重金属和污染物质具很强的自净能力。 | 林以安 Martin J.M Thomas A.J | 1996 | 海洋与湖沼1996，27，2： | 2 |
| 14 | Empirical tests of budget ratcheting and its effect on managers' discretionary accrual choices显示文摘 | Leone A.J Rock S | | 0，，： | 1 |
| 15 | A polar dinosaur-track assemblage from the Eumeralla Formation(Albian),Victoria,Australia显示文摘 | Martin A.J Rich Th.H Vickers-Rich P Vazquez-Prokopec G | | 0，，： | 1 |
| 16 | Monetary Policy and Asset Prices显示文摘 | Filardo A.J | | 0，，03： | 1 |
| 17 | The determinants of MNE subsidiaries' political strategies:Evidence of institutional duality显示文摘 | Hillman A.J Wan W.P | | 0，，03： | 1 |
| 18 | Barberb GSTM1 copy number and lung cancer risk显示文摘 | Philip A.J Crosbiea b c Philip V | | 0，，01： | 1 |
| 19 | Creative Cities:Conceptual Issues and Policy Questions显示文摘 | Scott A.J | | 0，，01： | 1 |
| 20 | Resource limitation in plants-an economic analogy显示文摘 | Blom A.J F.S.Chapin H.A.Mooney | | 0，，： | 1 |
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