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| 1 | 主成分回归-极谱分析法测定吡嗪混合物显示文摘吡嗪及其甲基衍生物在弱酸性介质中具有良好的极谱波。但它们彼此重叠,无法作单一成分分析。本文在pH=4.8的McIlvane缓冲溶液中对吡嗪、2-甲基吡嚎、2,3-二甲基吡嗪和2,3,5-三甲基吡嗪多组分混合溶液在静汞电极上作微分脉冲极谱测定,所得的极谱重叠波数据用主成分回归法处理,获得了较好的定量分析结果。对于含量在0.15~1μg/ml之间的吡嗪及其甲基衍生物,回收率为95%~105%,相对标准偏差为4%~10%。 | 倪永年 Kokot S Selby M Hodgkinson M | 1993 | 分析化学1993，21，6： | 11 |
| 2 | Prospective randomized controlled trial evaluating cap-assisted colonoscopy vs standard colonoscopy显示文摘AIM: To study the significance of cap-fitted colonoscopy in improving cecal intubation time and polyp detection rate. METHODS: This study was a prospective randomized controlled trial conducted from March 2008 to February 2009 in a tertiary referral hospital at Sydney. The primary end point was cecal intubation time and the secondary endpoint was polyp detection rate. Consecutive cases of total colonoscopy over a 1-year period were recruited. Randomization into either standard colonoscopy (SC) or cap-assisted colonoscopy (CAC) was performed after consent was obtained. For cases randomized to CAC, one of the three sizes of cap was used: D-201-15004 (with a diameter of 15.3 mm), D-201-14304 (14.6 mm) and D-201-12704 (13.0 mm). All of these caps were produced by Olympus Medical Systems, Japan. Independent predictors for faster cecal time and better polyp detection rate were also determined from this study. RESULTS: There were 200 cases in each group. There was no signif icant difference in terms of demographic characteristics between the two groups. CAC, when compared to the SC group, had no signif icant difference in terms of cecal intubation rate (96.0% vs 97.0%, P = 0.40) and time (9.94 ± 7.05 min vs 10.34 ± 6.82 min, P = 0.21), or polyp detection rate (32.8% vs 31.3%, P = 0.75). On the subgroup analysis, there was no significant difference in terms of cecal intubation time by trainees (88.1% vs 84.8%, P = 0.40), ileal intubation rate (82.5% vs 79.0%, P = 0.38) or total colonoscopy time (23.24 ± 13.95 min vs 22.56 ± 9.94 min, P = 0.88). On multivariate analysis, the independent determinants of faster cecal time were consultant-performed procedures (P < 0.001), male patients (P < 0.001), non-usage of hyoscine (P < 0.001) and better bowel preparation (P = 0.01). The determinants of better polyp detection rate were older age (P < 0.001), no history of previous abdominal surgery (P = 0.04), patients not having esophagogastroduodenoscopy in the same setting (P = 0.003), trainee-performed procedures (P = 0.01), usage of hyoscine (P = 0.01) and procedures performed for polyp follow-up (P = 0.01). The limitations of the study were that it was a single-center experience, no blinding was possible, and there were a large number of endoscopists. CONCLUSION: CAC did not signif icantly different from SC in term of cecal intubation time and polyp detection rate. | Hoi-Poh Tee Crispin Corte Hamdan Al-Ghamdi Emilia Prakoso John Darke Raman Chettiar Wassim Rahman Scott Davison Sean P Griffin Warwick S Selby Arthur J Kaffes | 2010 | World Journal of Gastroenterology2010，16，31： | 10 |
| 3 | Investigation of MR decay rate in microphantom models of trabecular bone显示文摘 | Selby K Majumdar S Newitt DC | 1996 | J Magn Reson Imaging1996，6，3： | 1 |
| 4 | Investgation of MR Decay rates in microphantom moders of trabecular bone 显示文摘 | Selby K Majumdar S Newitt DC | 1996 | J Magn Reson Imaging1996，6，： | 1 |
| 5 | Self-efficacy and the stages of exercise behavior change 显示文摘 | Marcus B H Selby V C Niaura R S Rossi J S | 1992 | Research Quarterly for Exercise and Sport1992，63，： | 1 |
| 6 | Tumour Necrosis Factor in Man: Clinical and Biological Observations显示文摘 | Hobbs S Viner C | 1987 | Br J Cancer1987，56，： | 1 |
| 7 | Automated Peritoneal Dialysis Has Significant Effects on Systemic Hemodynamics显示文摘 | Selby N M Fonseca S Hulme L | 2006 | Perit Dial Int2006，26，3： | 1 |
| 8 | Progestogens of varying androgenicity and cardiovascular risk factors in postmenopausal women receiving oestrogen replacement therapy 显示文摘 | KWOK S SELBY PL MCELDUFF P | 2004 | Clin Endocrinol(Oxf)2004，61，6： | 1 |
| 9 | Quality of life in perianal Crohn's disease: what do patients consider important 显示文摘 | Mahadev S Young JM Selby W | 2011 | Dis Colon Rectum2011，54，： | 1 |
| 10 | Evaluation of a rapid method for the quantitative estimation of coliforms in meat by im- pedimetric procedures显示文摘 | Martins S B Selby M J | 1980 | Applied and Environment Microbiology1980，39，： | 1 |
| 11 | Epizootiologic features ofcanine hydrocephalus显示文摘 | Selby L A Hayes H M Jr Becker S V | 1979 | Am J Vet Res1979，40，： | 1 |
| 12 | Self-efficacy and the Stages of Exercise Behavior Change显示文摘 | Marcus B H Selby V C Niaura R S | 1992 | Res Q Exerc Spoa1992，63，1： | 1 |
| 13 | Induction of Cytotoxic T Lymphocytes by Intramuscular Immunization with Plasmid DNA is Facilitated by Bone Marrow-Derived Cells显示文摘 | Doe B Selby M Barnett S | 1996 | Proc Natl Acad Sci USA1996，93，16： | 1 |
| 14 | A new role for phytochromes in temper- ature-dependent germination 显示文摘 | Heschel M S Selby J Butler C | 2007 | New Phytol2007，174，： | 1 |
| 15 | Bayes Comparison of 2 Lognormal Reliability Functions 显示文摘 | Selby M A S houkri M M | 1990 | IEEE Transaction on Reliability1990，39，3： | 1 |
| 16 | Macrocyclic Poly Arylamines for Rigid Connection of Poly Radical Cation Spins显示文摘 | T D Selby S C Blackstock | 1999 | Organic Letters1999，1，13： | 1 |
| 17 | Mechanics of sand production and the flow of fines in porous media显示文摘 | Selby R J Farouq Ali S M | 1988 | JCPT1988，27，： | 1 |
| 18 | Factors released from embry- onic stem cells stimulate c-kit-FLK-1 ( + vc ) progenitor cells andenhance neovascularization 显示文摘 | Farina S Selby DE Singla RD | 2010 | Antioxid Redox Signal2010，13，12： | 1 |
| 19 | Genome-wide analysis of human global and transcription-coupled excision repair of UV damage at single-nucleotide resolution显示文摘 | Hu J Adar S Selby C P | 2015 | Genes Dev2015，29，9： | 1 |
| 20 | Midlife cardiovascular risk factors and risk of dementia in late life显示文摘 | Sidney S Selby J | 2005 | Neurology2005，64，2： | 1 |
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