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2471篇 您的检索式:作者名="Morris G"
    题名 作者 年代 出处 被引量
1A rapid method for estimating log P for organic chemicals显示文摘Veith G D Austin N M and Morris R T 1979Water Res1979,13,:3
2Diagnostic accuracy of tests for Helicobacter pylori in an Alaska Native population显示文摘AIM:To evaluate the accuracy of two non-invasivetests in a population of Alaska Native persons. Highrates of Helico bacter pylori(H. pylori) infection,H. pylori treatment failure,and gastric cancer in this population necessitate documentation of infection status atmultiple time points over a patient's life.METHODS:In 280 patients undergoing endoscopy,H. pylori was diagnosed by culture,histology,rapidurease test,13C urea breath test(UBT) ,and immuno-globulin G antibodies to H. pylori in serum. The performances of 13C-UBT and antibody test were compared to a gold standard defined by a positive H. pylori testby culture or,in case of a negative culture result,bypositive histology and a positive rapid urease test.RESULTS:The sensitivity and specificity of the 13C-UBT were 93% and 88%,respectively,relative to thegold standard. The antibody test had an equivalents ensitivity of 93% with a reduced specificity of 68%.The false positive results for the antibody test were as-sociated with previous treatment for an H. pylori infection [relative risk(RR) = 2.8]. High levels of antibodiesto H. pylori were associated with chronic gastritis and male gender,while high scores in the 13C-UBT testwere associated with older age and with the H. pyloribacteria load on histological examination(RR = 4.4) .CONCLUSION:The 13C-UBT out performed the anti-body test for H. pylori and could be used when a non-invasive test is clinically necessary to document treatment out come or when monitoring for reinfection.Dana L Bruden Michael G Bruce Karen M Miernyk Julie Morris Debby Hurlburt Thomas W Hennessy Helen Peters Frank Sacco Alan J Parkinson Brian J McMahon 2011World Journal of Gastroenterology2011,17,42:3
3Axial superresolution with phase-only pupil filters显示文摘T Sales R M Morris G M 1998Opt Commun1998,156,:2
4Diffractive superresolution elements显示文摘T Sales R M Morris G M 1997J Opt Soc Am A1997,14,7:2
5Effect of small alloying additions on behavior of rapidly solidified Cu-Cr alloys 显示文摘BATAWI E MORRIS D G MORRIS M A 1990Materials Science and Technology1990,6,:2
6General analytical solutions of the Bloch equations 显示文摘Morris G A Chilvers P B 1994J Magn Res1994,107,:2
7Design of a wide diffractive landscape lens显示文摘Buralli D A Morris G W 1989Appl Opt1989,28,18:2
8Nitric oxide, the endothelium, pregnancy and preeclampsia显示文摘Morris NH Eaton BM Dekker G 1996Br J Obstet Gynaecol1996,103,:2
9在 7T 的多原子的磁性的回声光谱学的应用显示文摘 AIM: To discuss the advantages of ultra-high field (7T) for 1H and 13C magnetic resonance spectroscopy (MRS) studies of metabolism.made at both 3 and 7T using 1H MRS. Measurements of glycogen and lipids in muscle were measured using 13C and 1H MRS respectively. RESULTS: In the brain, increased signal-to-noise ratio (SNR) and dispersion allows spectral separation of the amino-acids glutamate, glutamine and γ-aminobutyric acid (GABA), without the need for sophisticated editing sequences. Improved quantification of these me-tabolites is demonstrated at 7T relative to 3T. SNR was 36% higher, and measurement repeatability (% coefficients of variation) was 4%, 10% and 10% at 7T, vs 8%, 29% and 21% at 3T for glutamate, glutamine and GABA respectively. Measurements at 7T were used to compare metabolite levels in the anterior cingulate cortex (ACC) and insula. Creatine and glutamate levels were found to be significantly higher in the insula compared to the ACC (P < 0.05). In muscle, the increased SNR and spectral resolution at 7T enables interleaved studies of glycogen (13C) and intra-myocellular lipid (IMCL) and extra-myocellular lipid (EMCL) (1H) following exercise and refeeding. Glycogen levels were sig-nificantly decreased following exercise (-28% at 50% VO2 max; -58% at 75% VO2 max). Interestingly, levels of glycogen in the hamstrings followed those in the quadriceps, despite reduce exercise loading. No changes in IMCL and EMCL were found in the study. CONCLUSION: The demonstrated improvements in brain and muscle MRS measurements at 7T will increase the potential for use in investigating human metabolism and changes due to pathologies.Mary C Stephenson Frances Gunner Antonio Napolitano Paul L Greenhaff Ian A MacDonald Nadeem Saeed William Vennart Susan T Francis Peter G Morris 2011World Journal of Radiology2011,3,4:2
10Basecalling with LifeTrace显示文摘Walther D Bantha G Morris M 0,,:2
11Effect of two opposing changes in photoperiod upon age at first egg and related traits in layer - hybrid pullets 显示文摘Lewis P D Perry G C Morris T R 2003Journal of Agricultural Science Cambridge2003,140,:1
12Efficacy of ciprofloxacin in the treatment of chronic typhoid carriers显示文摘FERRECCIO C MORRIS J G V ALDIVIESO C 1988J Infect Dis1988,157,3:1
13User acceptance of information technology: toward a unified view 显示文摘VENKATESH V MORRIS M G DAVIS G B 2003MIS Quarterly2003,27,3:1
14Microstructures and mechanical properties of rapidly solidified Cu-Cr alloys显示文摘Morris M A Morris D G 1987Acta Metall1987,35,10:1
15Mycophenolic acid morphlinoethyester (RS- 61443) is a new immunosupperessant that prevents and halts heart allograft rejection by selective inhibition of T- and B- cell purine synthesis显示文摘 Hoyt E G Murphy M P 1990Transplantation Proc1990,22,6:1
16Mierostructure and strength of Cu-Fe in situ composites after very high drawing strains 显示文摘Biselli C Morris D G 1996Acta Mater1996,4,2:1
17Cyclooxygenase-2 expression in the Barrett's metaplasia-atypical hyperplasia-adenocarcinoma sequence显示文摘Morris CD Armstrong GR Bigley G 2001AmJ Gastroenterol2001,96,4:1
18Effect of size and timing of photoperiod increase on age at first egg and subsequent performance of two breeds of laying hen显示文摘Lewis P Perry G Morris T 1997Brit Pouh Sci1997,38,:1
19Surface adjustment of the IRAM 30 m radio telescope显示文摘Morris D Bremer M Butin G 2009IET Microwave Antennas and Propagation2009,3,1:1
20Mierostructure and mechanical properties of rapidly solidified Cu-Cr alloying 显示文摘Morris M A Morris D G 1987Acta Metall1987,35,10:1
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