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| 1 | On Desideratum for B2C E-Commerce Reputation Systems显示文摘This paper reviews existing approaches to reputation systems,their constraints as well as available solutions. Furthermore,it presents and evaluates a novel and comprehensive reputation model devoted to the distributed reputation system for Business-to-Consumer(B2C) E-commerce applications that overcomes the discussed drawbacks.The algorithm offers a comprehensive approach as it considers a number of issues that have a bearing on trust and reputation such as age of ratings,transaction value,credibility of referees,number of malicious incidents,collusion and unfair ratings.Moreover,it also extends the existing frameworks based on information about past behaviour,with other aspects affecting online trading decisions which relate to the characteristic of the providers,such as existence of trustmark seals,payment intermediaries, privacy statements,security/privacy strategies,purchase protection/insurance,alternative dispute resolutions as well as the existence of first party information. | Anna Gutowska Andrew Sloane Kevan A.Buckley | 2009 | Journal of Computer Science & Technology2009，24，5： | 12 |
| 2 | Consecutive fecal calprotectin measurements for predicting relapse in pediatric Crohn's disease patients显示文摘BACKGROUND Asymptomatic children with Crohn's disease(CD) require ongoing monitoring to ensure early recognition of a disease exacerbation.AIM In a cohort of pediatric CD patients, we aimed to assess the utility of serial fecal calprotectin measurements to detect intestinal inflammatory activity and predict disease relapse.METHODS In this prospective longitudinal cohort study, children with CD on infliximab therapy in clinical remission were included. Fecal calprotectin levels were assessed at baseline and at subsequent 2-5 visits. Clinical and biochemical disease activity were assessed using the Pediatric Crohn's Disease Activity Index, Creactive protein and erythrocyte sedimentation rate at baseline and at visits over the following 18 mo.RESULTS 53 children were included and eighteen patients(34%) had a clinical disease relapse during the study. Baseline fecal calprotectin levels were higher in patients that developed symptomatic relapse [median(interquartile range), relapse 723μg/g(283-1758) vs 244 μg/g(61-627), P = 0.02]. Fecal calprotectin levels > 250μg/g demonstrated good predictive accuracy of a clinical flare within 3 mo(area under the receiver operator curve was 0.86, 95% confidence limits 0.781 to 0.937).CONCLUSION Routine fecal calprotectin testing in children with CD in clinical remission is useful to predict relapse. Levels > 250 μg/g are a good predictor of relapse in the following 3 mo. This information is important to guide monitoring standards used in this population. | Alice Jane Foster Matthew Smyth Alam Lakhani Benjamin Jung Rollin F Brant Kevan Jacobson | 2019 | World Journal of Gastroenterology2019，25，10： | 3 |
| 3 | Transition clinic attendance is associated with improved beliefs and attitudes toward medicine in patients with inflammatory bowel disease显示文摘AIM To evaluated the differences in knowledge, adherence, attitudes, and beliefs about medicine in adolescents with inflammatory bowel disease(IBD) attending transition clinics.METHODS We prospectively enrolled patients from July 2012 to June 2013. All adolescents who attended a tertiarycentre-based dedicated IBD transition clinic were invited to participate. Adolescent controls were recruited from university-affiliated gastroenterology offices. Participants completed questionnaires about their disease and reported adherence to prescribed therapy. Beliefs in Medicine Questionnaire was used to evaluate patients' attitudes and beliefs. Beliefs of medication overuse, harm, necessity and concerns were rated on a Likert scale. Based on necessity and concern ratings, attitudes were then characterized as accepting, ambivalent, skeptical and indifferent. RESULTS One hundred and twelve adolescents were included and 59 attended transition clinics. Self-reported adherence rates were poor, with only 67.4% and 56.8% of patients on any IBD medication were adherent in the transition and control groups, respectively. Adolescents in the transition cohort held significantly stronger beliefs that medications were necessary(P = 0.0035). Approximately 20% of adolescents in both cohorts had accepting attitudes toward their prescribed medicine. However, compared to the control group, adolescents in the transition cohort were less skeptical of(6.8% vs 20.8%) and more ambivalent(61% vs 34%)(OR = 0.15; 95%CI: 0.03-0.75; P = 0.02) to treatment.CONCLUSION Attendance at dedicated transition clinics was associated with differences in attitudes in adolescents with IBD. | Nancy Fu Kevan Jacobson Andrew Round Kathi Evans Hong Qian Brian Bressler | 2017 | World Journal of Gastroenterology2017，23，29： | 2 |
| 4 | SD大鼠长期高盐饮食可导致其高血压并改变肾细胞因子基因表达谱(英文)显示文摘Objective:The present study examines whether a long-term high salt diet causes hypertension and renal injury in normal subjects [Sprague-Dawley(SD) rats] and alters renal cytokine-related gene expression profiles.Methods: Four 10 week old male SD rats received a high salt diet(HS,8%) and the other 4 SD rats received a normal salt diet(NS,0.5 %) for 8 weeks.Mean arterial pressure(MAP) and renal damages such as albuminuria and histological renal injury were determined.The relative mRNA levels of 514 cytokine-related genes(normalized by β-actin) in rat kidneys following NS or HS were determined quantitatively through analysis of 4 sets of gene expression profiles using the mouse cDNA membrane microarrays.Results: We demonstrated that 8 weeks of HS diet increased MAP [(140.0±5.3) vs(112.0±2.2) mmHg;1 mmHg=0.133 kPa,P<0.01],albuminuria [(41.4±3.2) vs(20.1±4.5) mg/d;P<0.01],and caused histological renal injury in SD rats,compared to NS group.Of the 514 genes in the array,there were 27(5.25%) genes with significantly different expression in the kidney of SD rats with HS compared to those of SD rats with NS.Functional clustering analysis indicated the following functional pathways related to high salt diet-induced hypertension:(1) pro-inflammatory response(↑IL-17,CCL28;↓NFκbib);(2) endothelial dysfunction(↓VEGF-A,VEGF-B,endoglin);(3) pro-matrix formation(↑osteopontin,IGFBP-5;↓IFN-γ);and(4) attenuated cell survival and differentiation(↓CNTF,IGF-Ⅱ R,ephrin-B1).Northern blot confirmed that 8 weeks of HS diet significantly decreased renal expression of VEGF mRNA,compared to NS group(P<0.01).ELISA showed that HS diet significantly decreased renal protein levels of VEGF and CCL28.Conclusion: These findings support the hypothesis that hypertension can be induced in normal rats by a long-term high salt diet,which is associated with increased renal injury and marked changes in renal cytokine gene expression profiles that are closely related to the pro-inflammatory response,pro-matrix formation,endothelial dysfunction,and attenuated cell survival and differentiation. | Emily YOUNG Kevan B.TUCKER Megan SHPARAGO Amelia Purser BAILEY | 2009 | 北京大学学报(医学版)2009，41，5： | 2 |
| 5 | Bacterial pathogens in Hawaiian coastal streams—Associations with fecal indicators, land cover, and water quality显示文摘 | Emily J. Viau Kelly D. Goodwin Kevan M. Yamahara Blythe A. Layton Lauren M. Sassoubre Siobhán L. Burns Hsin-I Tong Simon H.C. Wong Yuanan Lu Alexandria B. Boehm | 2011 | Water Research2011，，11： | 2 |
| 6 | 中国航空旅行:乘客远景评估显示文摘中国航空旅客的复杂度不断增加
随着中产阶级崛起,中国的航空市场正在蓬勃发展。自2010年起,中国国内和国际旅行量分别保持着每年13%和17%的增长速度。越来越多的旅客选择在国际长途旅行或者国内短途旅行时搭乘飞机。 | 贝明宇 Kevan Moniri 楼一孺 | 2016 | 空运商务2016，0，7： | 2 |
| 7 | Non-interferometric photoacoustic remote sensing microscopy显示文摘Elasto-optical refractive index modulation due to photoacoustic initial pressure transients produced significant reflection of a probe beam when the absorbing interface had an appreciable refractive index difference.This effect was harnessed in a new form of non-contact optical resolution photoacoustic microscopy called photoacoustic remote sensing microscopy.A noninterferometric system architecture with a low-coherence probe beam precludes detection of surface oscillations and other phase-modulation phenomenon.The probe beam was confocal with a scanned excitation beam to ensure detection of initial pressure-induced intensity reflections at the subsurface origin where pressures are largest.Phantom studies confirmed signal dependence on optical absorption,index contrast and excitation fluence.In vivo imaging of superficial microvasculature and melanoma tumors was demonstrated with~2.7±0.5μm lateral resolution. | Parsin Hajireza Wei Shi Kevan Bell Robert J Paproski Roger J Zemp | 2017 | Light(Science & Applications)2017，6，1： | 2 |
| 8 | Catalytic study of methanol-to-olefins conversion in four small-pore silicoalumino- phosphate molecular sieves : Influence of the structural type, nickel incorporation, nickel location, and nickel concentration 显示文摘 | Djieugoue Marie-Ange Prakash A M Kevan Larry | 2000 | Journal of Physical Chemistry B2000，104，27： | 1 |
| 9 | Electron spin resonance and electron spin echo modulation studies of cupric ion ion-exchanged into siliceous MCM-41显示文摘 | Poppl A Newhkouse M Kevan L | 1995 | J Phys Chem1995，99，10： | 1 |
| 10 | Catalytic study of methanol-to-olefin conversion in four small-pore silieoalu- minophosphate molecular sieves:influence of the structural type, nickel incorporation, nickel location, and nickel con- centration显示文摘 | Djieugoue M A Prakash A M Kevan L | 2000 | Journal of Physical Chemistry B2000，104，27： | 1 |
| 11 | Cytomegalovirus-Associated Hemophagocytic Syndrome in a Child With Crohn Disease Receiving Azathioprine显示文摘 | T. G. Lokesh Babu Dana Boctor Alyson Davey Mason C. Bond Kevan Jacobson | 2004 | Journal of Pediatric Gastroenterology and Nutrition2004，，4： | 1 |
| 12 | Transition-metal ions in alu- minophosphate and silicoaluminophosphate molecular sieves: Location, interaction with adsorbates and catalytic properties显示文摘 | Hartmann M Kevan L | 1999 | Chem Rev1999，99，3： | 1 |
| 13 | Pollination and environmental conservation显示文摘 | KEVAN P G | 1975 | Environ-mental Conservation1975，4，： | 1 |
| 14 | Evaluation of DNA barcoding and identification of new haplomorphs in Canadian deerflies and horseflies显示文摘 | Cywinska A Hannan MA Kevan PG | 2010 | Med Vet Entomol2010，24，4： | 1 |
| 15 | Transition-metal ionsin alominophosphate and silicoaluminophosphate molecular sieves: location, interaction with adsorbates and catalytic显示文摘 | Larry Kevan Chem Revw | 1999 | 99(3)1999，，： | 1 |
| 16 | Assessing tillage disturbance on assemblages of ground beetles (Coleoptera:Carabidae) by using a range of ecological indices显示文摘 | Belaoussoff S Kevan P G Murphy S | 2003 | Biodivers Conserv2003，12，5： | 1 |
| 17 | Assessing tillage disturbance on assemblages of ground beetles (Coleoptera: Carabidae) by using a range of ecological indices显示文摘 | Svenja Belaoussoff Peter G. Kevan Stephen Murphy Clarence Swanton | 2003 | Biodiversity and Conservation2003，，5： | 1 |
| 18 | Clustering research group website homepages显示文摘 | Patrick Kenekayoro Kevan Buckley Mike Thelwall | 2015 | Scientometrics2015，102，3： | 1 |
| 19 | Log-normality of biodiversity and abundance in diagnosis and measuring of ecosystemic health: pesticide stress on pollinators on blueberry heaths 显示文摘 | Kevan P G Greco C F Belaoussoff S | 1997 | Journal of Applied Ecology1997，34，4： | 1 |
| 20 | Photoinduced charge separation of pyrene in chromium-containing silicoaluminophosphate (SAPO-5) microprous materials at room temperature 显示文摘 | Ranjit K T Kevan L | 2003 | Journal of Physical Chemistry B2003，107，11： | 1 |
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