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34篇 您的检索式:作者名="Steven Morgan"
    题名 作者 年代 出处 被引量
1腰椎骨盆固定和三角固定术在不稳定型骶骨骨折治疗中的应用显示文摘骶骨是构成骨盆后环的蕈要结构和脊柱重力线分佑到两侧髋臼的枢纽部位,垂直不稳定型骶骨骨折多由高能量损伤引起,常合并神经损伤和多发性创伤而引起骨盆环不稳定,特殊类型的骶骨骨折可引起脊柱一骨盆的不稳定。近年来,随着研究的深入,多种内固定方法用于垂直不稳定型骶骨骨折的治疗,包括横向固定装置,如骶髂螺钉、骶骨棒、易成腊 Steven Morgan David J Hak 2011中华创伤骨科杂志2011,13,4:8
2Luminescence of Er^(3+) in Oxyfluoride Transparent Glass-Ceramics显示文摘Erbium doped silicate, germanate, and tellurium-germanate oxyfluoride glasses were prepared in a bulk form. Through appropriate heat treatment of the as-prepared glasses, transparent glass-ceramics (TGCs) were obtained with the formation of β-PbF2∶Er 3+ nanocrystals in the glass matrix were confirmed by X-ray diffraction. Well-defined diffraction peaks were observed in the samples after heat-treatment. The average crystal diameter of these precipitated crystals from full-width at half-maximum (FWHM) of the diffraction peak was estimated to be between 8 and 13 nm. Optical absorption, photoluminescence, and upconversion luminescence were measured on as-prepared glass and glass-ceramics. Luminescence spectra in the TGC samples revealed well-resolved, sharp stark-splitting peaks, which indicates that a majority of Er 3+ ions has been incorporated into the crystalline phase of the nanocrystals. The intensity of the visible and near infrared luminescence mostly increases in TSG compared to that in the as-prepared glass. In 1.53 μm absorption and emission bands, the maximum absorption peak is blue-shifted from 1531 to 1507 nm, whereas the maximum emission peak is red-shifted from 1535 to 1543 nm in TGC, as compared with that in glass. The bandwidth at half-maximum (BWHM) of the emission band is significantly broader in TGC than in glass, which is beneficial to the erbium-doped fiber amplifier (EDFA). Upconversion luminescence was measured using 800 nm near-infrared light excitation. Drastically increased upconversion luminescence was observed from the TGC as compared to that from their corresponding as-prepared glasses. In addition to a strong green emission centered at 545 nm because of 4S 3/2 →4I 15/2 transition and a weaker red emission centered at 662 nm because of 4F 9/2 →4I 15/2 transition, generally seen from the Er 3+ doped glasses, two violet emissions centered at 410 nm because of 2H 9/2 →4I 15/2 transition and centered at 379 nm because of 4G 11/2 →4I 15/2 transition were also observed from the TGC. The increased luminescence was attributed to the decreased effective phonon energy and the increased energy transfer between the excited ions when Er 3+ ions were incorporated into the precipitated β-PbF2 nanocrystals. The results indicated two attractive spectroscopic properties of the Er 3+ doped TGC samples, compared to glass samples, namely a reduced multiphonon decay rate and a reduced inhomogeneous broadening. In addition, these oxyfluoride TGC materials were robust, easy and flexibile to process, and possible to be fabricated in the fiber form for device applications.Akira Ueda Steven H Morgan Richard Mu 2006Journal of Rare Earths2006,24,6:7
3Treating cancer with genetically engineered T cells显示文摘Tristen S. Park Steven A. Rosenberg Richard A. Morgan 2011Trends in Biotechnology2011,,11:3
4Benign lichenoid keratosis: a clinical and pathologic reappraisal of 1040 cases 显示文摘Morgan MB Stevens GL Switlyk S 2005Am J Dermatopathol2005,27,5:1
5RcsB de- termines the locus of enterocyte effacement (LEE) expression and adherence phenotype of Escherichia colt O157 : H7 spin- ach outbreak strain TW14359 and coordinates bicarbonate-de- pendent LEE activation with repression of motility显示文摘Morgan J K Vendura K W Stevens S M Jr 2013Micro- biology2013,159,11:1
6良性苔藓样角化病:对1040例患者的临床及病理学再评价显示文摘Benign lichenoid keratosis, otherwise known as lichen planus-like keratosis, is a common, cutaneous entity that is often confused with cutaneous malignancy. Few studies have examined the multiple clinical and pathologic guises of this entity, particularly within the context of clinical pathologic correlation or magnitude of this study. We examined the epidemiologic, clinical, and pathologic attributes of 1040 consecutive cases of benign lichenoid keratosis referred for pathologic examination at a busy laboratory over an entire year. Clinical parameters assessed included the age, anatomic location, gender, and multiplicity of the lesions. Pathologic attributes were assessed yielding discernment of five different subtypes that included a classic type, bullous type, atypical type with cytologically atypical lymphocytes, an early or interface type, and a late regressed or atrophic type. The results yielded an average age at presentation of 59.5 years with an age range of 36 to 87 years. The gender frequency was 76% female, 24% male. The trunk was the most common location (76% ), followed by the extremities (33% ) and head and neck (7% ); 8% of patients presented with two lesions and less than 1% with three lesions prompting consideration of lichen planus. The classic, atypical, and bullous forms of the disease clinically presented with erythematous papule/plaque(s). The early or interface type showed erythematous to hyperpigmented brown macules and the regressed or atrophic type presented as violaceous papules or irregularly distributed macular pigmentation; 81% of the lesions showed the classic histology consisting of epidermal acanthosis with a band-like lichenoid lymphocytic infiltrate. Variable numbers of plasma cells, eosinophils, and neutrophils were identified as well as epidermal parakeratosis distinguishing these lesions from typical lichen planus. The bullous variant showed intraepidermal or subepidermal bullous cavities with a dense associated lymphocytic infiltrate and increased numbers of necrotic basilar layer keratinocytes. The atypical variant showed features of the classic type with scattered enlarged CD-3, CD-30(+ ) lymphocytes possessing hyperchromatic, irregular nuclei. The early interface type showed single lymphocytes aligned along the dermoepidermal junction without epidermal acanthosis and adjacent lentigo. The regressed or atrophic variant showed epidermal atrophy with papillary dermal scarring, patchy lymphocytic infiltrates and melanin incontinence. The clinicopathologic spectrum of benign lichenoid keratosis is broad and encompasses several unrelated entities. An awareness of its expanded presentation is essential to avoidmisdiagnosis andmay serve as an important forerunner of pathogenic discernment.Morgan M.B. Stevens G.L. Switlyk S. 王琼 2006世界核心医学期刊文摘(皮肤病学分册)2006,0,4:1
7Sleep quality in treatment-seeking veterans of Operations Enduring Freedom and Iraqi Freedom: The role of cognitive coping strategies and unit cohesion显示文摘Robert H. Pietrzak Charles A. Morgan Steven M. Southwick 2010Journal of Psychosomatic Research2010,,:1
8A multicenter, U.S. experience of single-balloon, double-balloon, and rotational overtube–assisted enteroscopy ERCP in patients with surgically altered pancreaticobiliary anatomy (with video)显示文摘Raj J. Shah Maximiliano Smolkin Roy Yen Andrew Ross Richard A. Kozarek Douglas A. Howell Gennadiy Bakis Sreenivasan S. Jonnalagadda Abed A. Al-Lehibi Al Hardy Douglas R. Morgan Amrita Sethi Peter D. Stevens Paul A. Akerman Shyam J. Thakkar Brian C. Brauer 2013Gastrointestinal Endoscopy2013,,4:1
9Are conventional reconstruction plates equivalent to precontoured locking plates for distal humerus fracture fixation? A biomechanics cadaver study显示文摘Ryan C. Koonce Todd H. Baldini Steven J. Morgan 2012Clinical Biomechanics2012,,7:1
10Deep Vein Thrombosis Prophylaxis in Trauma Patients显示文摘Serdar Toker David J. Hak Steven J. Morgan Omer Iqbal 2011Thrombosis2011,,:1
11Analysis of miR-137 expression and rs1625579 in dorsolateral prefrontal cortex显示文摘Ilaria Guella Adolfo Sequeira Brandi Rollins Linda Morgan Federica Torri Theo G.M. van Erp Richard M. Myers Jack David Barchas Alan F. Schatzberg Stanley J. Watson Huda Akil William E. Bunney Steven G. Potkin Fabio Macciardi Marquis P. Vawter 2013Journal of Psychiatric Research2013,,9:1
12Less invasive percutaneous wave plating of simple femur shaft fractures: A prospective series显示文摘Alessandro Janson Angelini Bruno Livani Michael A. Flierl Steven J. Morgan William Dias Belangero 2010Injury2010,,6:1
13Analysis of Efficacy and Failure in Proximal Humerus Fractures Treated With Locking Plates显示文摘Juan Agudelo Matthias Schürmann Philip Stahel Peter Helwig Steven J Morgan Wolfgang Zechel Christian Bahrs Anand Parekh Bruce Ziran Allison Williams Wade Smith 2007Journal of Orthopaedic Trauma2007,,10:1
14Water shut-off in oil production wells-lessons from 12 treatments显示文摘FULLEYLOVE R J MORGAN J C STEVENS D G eta 1996SPE362111996,,:1
15β3:an additional auxiliary subunit of the voltage-sensitive sodium channel that modulates channel gating with distinct kinetics显示文摘Morgan K Stevens E B Shah B 2000Proc Natl Acad Sci USA2000,97,5:1
16Technical Problems and Complications in the Removal of the Less Invasive Stabilization System显示文摘Takashi Suzuki Wade R Smith Philip F Stahel Steven J Morgan Andrea J Baron David J Hak 2010Journal of Orthopaedic Trauma2010,,6:1
17Attitudes of orthopaedic trauma surgeons regarding current controversies in the management of pelvic and acetabular fractures显示文摘 Steven J 2001J Orthop Trauma2001,15,:1
18Clusterin (apoJ) Alters the Aggregation of Amyloid β-Peptide (Aβ 1-42 ) and Forms Slowly Sedimenting Aβ Complexes That Cause Oxidative Stress显示文摘Tomiichiro Oda Pat Wals Heinz H. Osterburg Steven A. Johnson Giulio M. Pasinetti Todd E. Morgan Irina Rozovsky W.Blaine Stine Seth W. Snyder Thomas F. Holzman Grant A. Krafft Caleb E. Finch 1995Experimental Neurology1995,,1:1
19Beta 3 : an additional auxiliary subunit of the voltage-sensitive sodium channel that modulates channel gating with distinct kinetics 显示文摘Morgan K Stevens E B Shah B 2000Proc Natl Acad Sci USA2000,97,5:1
20Spectroscopic investigation of differential binding modes of A- and A -Ru(hpy)2(ppz)^2+ with calf thymus DNA显示文摘Steven A Tysoe Robert J Morgan David Baker A 1993J Phys Chem1993,97,:1
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