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180篇 您的检索式:作者名="Norell"
    题名 作者 年代 出处 被引量
1A new feathered maniraptoran dinosaur fossil that fills a morphological gap in avian origin显示文摘Recent fossil discoveries have substantially reduced the morphological gap between non-avian and avian dinosaurs, yet avians including Archaeopteryx differ from non-avian theropods in their limb proportions. In particular, avians have proportionally longer and more robust forelimbs that are capable of supporting a large aerodynamic surface. Here we report on a new maniraptoran dinosaur, Anchiornis huxleyi gen. et sp. nov., based on a specimen collected from lacustrine deposits of uncertain age in western Liaoning, China. With an estimated mass of 110 grams, Anchiornis is the smallest known non-avian theropod dinosaur. It exhibits some wrist features indicative of high mobility, presaging the wing-folding mechanisms seen in more derived birds and suggesting rapid evolution of the carpus. Otherwise, Anchiornis is intermediate in general morphology between non-avian and avian dinosaurs, particularly with regard to relative forelimb length and thickness, and represents a transitional step toward the avian condition. In contrast with some recent comprehensive phylogenetic analyses, our phylogenetic analysis incorporates subtle morphological variations and recovers a conventional result supporting the monophyly of Avialae.XU Xing ZHAO Qi NORELL Mark SULLIVAN Corwin HONE David ERICKSON Gregory WANG XiaoLin HAN FengLu GUO Yu 2009Chinese Science Bulletin2009,54,3:15
2满洲鳄:中国辽宁晚中生代半水生爬行动物显示文摘发现于辽宁西部凌源晚侏罗世 /早白垩世非海相义县组中的满洲鳄 ( Monjurosuchus)化石新材料 ,为解决其系统位置这一长久争议的问题提供了确切的实物依据 :满洲鳄为双孔型离鳄类 ( Choristodera)爬行动物中一较原始成员。保存精美的、独一无二的表皮构造使我们对该类中生代爬行动物的外表特征有了新的认识。满洲鳄四足具蹼 ,它至少是半水生的。高克勤 Susan E.Evans 季强 Mark Norell 姬书安 2000现代地质2000,14,3:6
3植物环蛋白的结构显示文摘简要介绍了植物环蛋白的定义、结构特点、研究历史、分布、提取分离方法、化学合成与生物合成、生物活性与生物功能。并主要以从紫花蔓地丁(Viola labridorica)中分离得到的六个环蛋白之一,cy-cloviolacinO2为例介绍通过还原酶解-质谱与二维核磁共振谱结合鉴定环蛋白结构的研究方法。唐军 谭宁华 许文彦 嵇长久 潘蓄林 Conan Wang Norelle L.Daly David J.Craik 2008云南植物研究2008,30,2:5
4椰子油:一种控制猪致病菌的新选择显示文摘在断奶期,许多细菌都能影响仔猪的肠道健康。日粮中添加中链脂肪酸,则有助于提高仔猪的生产性能和健康。从哪里提取这些中链脂肪酸呢?可从椰子油中提取。周美丽 邵建忠 韩浩月 Monica Puyalto Cinta Sol Juan Jose Mallor Norel 2017国外畜牧学(猪与禽)2017,37,11:3
5Celiac Disease Is Diagnosed Less Frequently in Young Adult Males显示文摘Rohit Dixit Benjamin Lebwohl Jonas F. Ludvigsson Suzanne K. Lewis Norelle Rizkalla-Reilly Peter H. R. Green 2014Digestive Diseases and Sciences2014,,7:2
6Selec- tion for virulence in Meloidogyne chitwoodi to resistance in the wild potato Solcmumfendleri 显示文摘Janssen G J W Scholten 0 E van Norel A 1998European Jour- nal of Plant Pathology1998,,104:1
7Influence of water vapor and flow rate on the high-temperature oxidation of 304L: effect of chromium oxide hydroxide evaporation 显示文摘Asteman H Svensson J E Norell M 2000Oxidation of Metals2000,54,:1
8A second cysteinyl leukotriene receptor in human lung 显示文摘Labat C Ortiz JL Norel X Gorenne I Verley J Abram TS Cuthbert NJ Tudhope SR Norman P Gardiner P 1992J Pharmacol Exp Ther1992,263,2:1
9Influence of water vapor and flow rate on the high temperature oxidation of 304L: effect of chromium oxide hydrox ide evaporation 显示文摘Asten H Svensson J E Norel M 2000Oxidation of Metals2000,54,1:1
10地氟烷与七氟烷在门诊手术全身麻醉维持中的对比研究:对苏醒早晚期及围手术期咳嗽的影响显示文摘背景目前地氧垸已经用于门诊全身麻醉手术的维持阶段,其相对于七氖烷在围手术期的优略性尚存争议。尽管各研究一致指出,地氟烷比七氟烷苏醒更快,但这种差异对苏醒晚期的影响却未有明确报道。并且,地氟烷与七氟烷相比,对咳嗽发生率的影响也存在争议。方法本研究中纳入了130例在全身麻醉下行浅表门诊手术的患者,随机分为2组。所有患者都静脉注射丙泊酚2mg/kg诱导,置入喉罩,采用1%-3%的七氟烷或3%-8%的地氟炕维持麻醉,吸入混合空气或氧气。调节吸入麻醉药的浓度,维持血流动力学稳定,并维持脑电双频谱指数(BIS)于50—60。并用局部浸润和静脉注射酮洛酸30mg镇痛。在手术结束时给予预防性止吐药物,包括昂丹司琼4mg、地塞米松4mg及甲氧氨普胺10mg。评估标准包括睁眼恢复时间,对指令做出反应的时间,定向力恢复的时间,14分快通道评分,首次进食时间,能坐立,可站立,独立行走及出院时间。手术后早期及离院后24小时内,记录患者对于麻醉的满意度,手术后第1天恢复正常活动的能力,不良反应的发生(如咳嗽、意向性运动、氧饱和度〈90%、咽痛及手术后恶心、呕吐),手术后镇痛药及止吐药的使用情况。结果2组患者的流行病学资料相近。尽管围手术期地氯烷组咳嗽的总体发生率高于七氟烷组(分别为60%和32%,P〈0.05),然而在真正应用吸入麻醉药期间(即麻醉维持中),咳嗽发生率的组间差异无显著性。地氧烷组患者苏醒较快,但两组所有患者在离开手术室之前都达到了快通道恢复标准(快通道评分≥12)。此外,离院时间(七氟炕组90±31分钟,地氟炕组98±5分钟)及手术后第1天能恢复正常活动的患者比率(七氟烷48%,地氟炕60%),在两组间的差异无显著性。结论用地氧烷进行维持全身麻醉具有苏醒迅速、咳嗽发生率高的特点。尽管与七氟烷相比,地氟炕在麻醉早期恢复较快,但两组晚期恢复的差异无显著性。两种吸入麻醉药都适用于门诊手术的麻醉。Paul F. White Jun Tang Ronald H. Wender Roya Yumul O. lameson Stokes Alexander Sloninsky Robert Naruse Robert Kariger Evelyn Norel Steven Mandel Tom Webb Alan Zaentz 王琦(译) 李文志(校) 2011麻醉与镇痛2011,7,1:1
11Urothelial cancer and some industry-related chemicals:an evaluation of the epidemiologic literature 显示文摘Steineck G Plato N Norell SE 1990Am J Ind Med1990,17,:1
12Influence of Water Vapor and Flow Rate on the High-Temperature Oxidation of 304L; Effect of Chromium Oxide Hydroxide Evaporation显示文摘H. Asteman J.-E. Svensson M. Norell L.-G. Johansson 2000Oxidation of Metals (-)2000,,1:1
13The Recovery of Cognitive Function After General Anesthesia in Elderly Patients: A Comparison of Desflurane and Sevoflurane显示文摘Xiaoguang Chen Manxu Zhao Paul F. White Shitong Li Jun Tang Ronald H. Wender Alexander Sloninsky Robert Naruse Robert Kariger Tom Webb Eve Norel 2001Anesthesia & Analgesia2001,,6:1
14Indication of Chromium Oxide Hydroxide Evaporation During Oxidation of 304L at 873 K in the Presence of 10% Water Vapor显示文摘H. Asteman J.-E. Svensson L.-G. Johansson M. Norell 1999Oxidation of Metals (-)1999,,1:1
15Smoking Tobacco,oral snuff,and alcohol in the etiology of squamous cell carcinoma of the head and neck显示文摘Lewin F Norell SE Johansson H 1998Cancer1998,82,7:1
16Roentgenologic visualization of the extracapsular fat 显示文摘Norell HG 1954Acta Radiologica1954,42,3:1
17The distribution of integumentary structures in a feathered dinosaur显示文摘JI Q NORELL M A GAO K Q 2001Nature2001,410,:1
18Microvasculitis in non-diabetic lumbosacral radiculoplexus neuropathy (LSRPN):similarity to the diabetic variety(DLSRPN)显示文摘Dyck PJ Engelstad J Norell J 2000J Neuropathol Exp Neuro12000,59,6:1
19Two feathered dinosaursfrom northeasternChina显示文摘Ji Q Currie P J Norell M A 1998Nature1998,393,:1
20“Modern”feathers on a non-avian dinosaur显示文摘NORELL M A JI Q GAO K Q 2002Nature2002,416,:1
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