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5145篇 您的检索式:作者名="SWANSON"
    题名 作者 年代 出处 被引量
1Valuing water quality in China:purpose,approach and policy显示文摘The economic valuation of water quality in a rapidly developing country such as China should be undertaken to determine when the benefits from rapid growth begin to exceed the costs from the same. The best approach is to ascertain the total economic valuation of the environmental resource. This includes all of the various uses of the resource, and even those values that are unconnected to individual use (e.g. natural and aesthetic values). A method known as contingent valuation (CV) is used to ascertain these forms of value. This approach is demonstrated here in an application to river water quality in the Beijing area. A CV study is reported in which Beijing area citizens reported an average willingness to pay about 1.3% of annual income in order to prevent further deterioration of river water quality. Aggregation over the representative population indicates that the perceived cost of further river quality deterioration is in the neighbourhood of USD 60 million. Such a measure provides some indication of the socially desired “stopping point”—— in the pursuit of economic growth at the expense of environmental quality.Timothy Swanson,Brett Day,Susana Mourato Centre for Social and Economic Research on the Global Environment, Department of Economics, and School of Public Policy, University College London, Gower Street, London WC1E 6BT, United Kingdom 1999Journal of Environmental Sciences1999,11,3:12
2Co-effect of Demand-control-support Model and Effort-reward Imbalance Model on Depression Risk Estimation in Humans: Findings from Henan Province of China显示文摘Objective To investigate the co-effect of Demand-control-support(DCS) model and Effort-reward Imbalance(ERI) model on the risk estimation of depression in humans in comparison with the effects when they are used respectively. Methods A total of 3 632 males and 1 706 females from 13 factories and companies in Henan province were recruited in this cross-sectional study. Perceived job stress was evaluated with the Job Content Questionnaire and Effort-Reward Imbalance Questionnaire(Chinese version). Depressive symptoms were assessed by using the Center for Epidemiological Studies Depression Scale(CES-D). Results DC(demands/job control ratio) and ERI were shown to be independently associated with depressive symptoms. The outcome of low social support and overcommitment were similar. High DC and low social support(SS), high ERI and high overcommitment, and high DC and high ERI posed greater risks of depressive symptoms than each of them did alone.ERI model and SS model seem to be effective in estimating the risk of depressive symptoms if they are used respectively. Conclusion The DC had better performance when it was used in combination with low SS. The effect on physical demands was better than on psychological demands. The combination of DCS and ERI models could improve the risk estimate of depressive symptoms in humans.YU Shan Fa NAKATA Akinori GU Gui Zhen SWANSON Naomi G ZHOU Wen Hui HE Li Hua WANG Sheng 2013Biomedical and Environmental Sciences2013,26,12:8
3Sources and significance of variation in basal,summit and maximal metabolic rates in birds显示文摘The rates at which birds use energy may have profound effects on fitness, thereby influencing physiology, behavior,ecology and evolution. Comparisons of standardized metabolic rates (e.g., lower and upper limits of metabolic power output)present a method for elucidating the effects of ecological and evolutionary factors on the interface between physiology and lifehistory in birds. In this paper we review variation in avian metabolic rates [basal metabolic rate (BMR; minimum normothermicmetabolic rate), summit metabolic rate (M_(sum); maximal thermoregulatory metabolic rate), and maximal metabolic rate (MMR;maximal exercise metabolic rate)], the factors associated with this variation, the evidence for functional links between thesemetabolic traits, and the ecological and evolutionary significance of avian metabolic diversity. Both lower and upper limits tometabolic power production are phenotypically flexible traits, and vary in association with numerous ecological and evolutionaryfactors. For both inter- and intraspecific comparisons, lower and upper limits to metabolic power production are generallyupregulated in response to energetically demanding conditions and downregulated when energetic demands are relaxed, or underconditions of energetic scarcity. Positive correlations have been documented between BMR, M_(sum) and MMR in some, but not allstudies on birds, providing partial support for the idea of a functional link between lower and upper limits to metabolic powerproduction, but more intraspecific studies are needed to determine the robustness of this conclusion. Correlations between BMRand field metabolic rate (or daily energy expenditure) in birds are variable, suggesting that the linkage between these traits is subjectto behavioral adjustment, and studies of the relationship between field and maximal metabolic rates are lacking. Our understandingof avian metabolic diversity would benefit from future studies of: (1) the functional and mechanistic links between lowerand upper limits of metabolic power output; (2) the environmental and ecological cues driving phenotypically flexible metabolicresponses, and how responses to such cues might impact population responses to climate change; (3) the shapes of metabolic reactionnorms and their association with environmental variability; and (4) the relationship of metabolic variation to fitness, includingstudies of repeatability and heritability of minimum and maximum metabolic powerAndrew E. MCKECHNIE David L. SWANSON 2010Current Zoology2010,56,6:7
4Improvements in seismic event locations in a deep western U.S. coal mine using tomographic velocity models and an evolutionary search algorithm显示文摘Methods of improving seismic event locations were investigated as part of a research study aimed at reducing ground control safety hazards. Seismic event waveforms collected with a 23-station three-dimensional sensor array during longwall coal mining provide the data set used in the analyses. A spatially variable seismic velocity model is constructed using seismic event sources in a passive tomographic method. The resulting three-dimensional velocity model is used to relocate seismic event positions. An evolutionary optimization algorithm is implemented and used in both the velocity model development and in seeking improved event location solutions. Results obtained using the different velocity models are compared. The combination of the tomographic velocity model development and evolutionary search algorithm provides improvement to the event locations.LURKA Adam SWANSON Peter 2009Mining Science and Technology2009,19,5:7
5英格兰和威尔士地区儿童恶性肿瘤与高压输电线距离的关系:一项病例-对照研究显示文摘目的 确定英格兰和威尔士地区儿童白血病及其他癌症发病率是否与其出生时家庭地址与高压电线的距离存在关系。设计 病例-对照研究。设置 癌症登记处和国家电力供应网的记录。对象1962-1995年,英格兰和威尔士地区出生的0-14岁的29081名癌症患儿中包括9700名白血病患儿。对照组依照性别、大致相同的出生日期、出生登记处等予以个体匹配。并不强求积极参与。主要结果测定 儿童出生时的家庭地址与当时最近的高架高压输电线问的距离(以下有时简称为距离)。结果 与生活在距输电线超过600米的儿童相比,距输电线200米之内的儿童患白血病的相对危险度为1.69(95%可信区间为1.13-2.53);200-600米间的发病相对危险度为1.23(1.02-1.49)。白血病发病风险与输电线相互距离的倒数存在显著相关性(P〈0.01)。毗邻输电线未发现增加儿童其他癌症的额外发病风险。结论 儿童白血病发病风险与出生时家庭地址距高压电线的远近存在相关关系,且风险程度超出了以往研究的预期。在英格兰和威尔士地区,出生时生活在距离高压输电线600米内的白血病患儿约占4%。如果这种相关是偶然的,那么在该地区约1%的儿童白血病是由于高压输电线导致的,尽管这种估计在统计学上具有相当的不确定性。没有其他可接受的生物学机制来解释这些流行病学结果;事实上这种联系可能源于偶然或混杂。Gerald Draper Tim Vincent Mary E Kroll John Swanson 李勇 2005英国医学杂志中文版2005,8,6:4
6银川绿地中心超高层结构设计显示文摘银川绿地中心超高层项目包括两栋高301m的塔楼。结构体系采用由伸臂桁架连接的型钢混凝土外框架+钢筋混凝土核心筒组成的混合结构,有效地抵抗由地震作用和风荷载产生的巨大侧向力。采用ETABS,PMSAP及PERFORM 3D计算软件对结构进行了弹性分析及弹塑性分析,实现抗震性能化设计,从而满足规范及超限审查专家的要求。赵延彤 James Swanson 施伟顺 林志绵 2016建筑结构2016,46,S1:4
7Risk for emerging bipolar disorder, variants, and symptoms in children with attention deficit hyperactivity disorder, now grown up显示文摘AIM: To determine the prevalence of bipolar disorder(BD) and sub-threshold symptoms in children with attention deficit hyperactivity disorder(ADHD) through 14 years' follow-up, when participants were between 21-24 years old.METHODS: First, we examined rates of BD type Ⅰ?and Ⅱ diagnoses in youth participating in the NIMH-funded Multimodal Treatment Study of ADHD(MTA). We used the diagnostic interview schedule for children(DISC), administered to both parents(DISC-P) and youth(DISCY). We compared the MTA study subjects with ADHD(n = 579) to a local normative comparison group(LNCG, n = 289) at 4 different assessment points: 6, 8, 12, and 14 years of follow-ups. To evaluate the bipolar variants, we compared total symptom counts(TSC) of DSM manic and hypomanic symptoms that were generated by DISC in ADHD and LNCG subjects. Then we sub-divided the TSC into pathognomonic manic(PM) and non-specific manic(NSM) symptoms. We compared the PM and NSM in ADHD and LNCG at each assessment point and over time. We also evaluated the irritability as category A2 manic symptom in both groups and over time. Finally, we studied the irritability symptom in correlation with PM and NSM in ADHD and LNCG subjects.RESULTS: DISC-generated BD diagnosis did not differ significantly in rates between ADHD(1.89%) and LNCG 1.38%). Interestingly, no participant met BD diagnosis more than once in the 4 assessment points in 14 years. However, on the symptom level, ADHD subjects reported significantly higher mean TSC scores: ADHD 3.0; LNCG 1.7; P < 0.001. ADHD status was associated with higher mean NSM: ADHD 2.0 vs LNCG 1.1; P < 0.0001. Also, ADHD subjects had higher PM symptoms than LNCG, with PM means over all time points of 1.3 ADHD; 0.9 LNCG; P = 0.0001. Examining both NSM and PM, ADHD status associated with greater NSM than PM. However, Over 14 years, the NSM symptoms declined and changed to PM over time(df 3, 2523; F = 20.1; P < 0.0001). Finally, Irritability(BD DSM criterion-A2) rates were significantly higher in ADHD than LNCG(χ2 = 122.2, P < 0.0001), but irritability was associated more strongly with NSM than PM(df 3, 2538; F = 43.2; P < 0.0001).CONCLUSION: Individuals with ADHD do not appear to be at significantly greater risk for developing BD, but do show higher rates of BD symptoms, especially NSM. The greater linkage of irritability to NSM than to PM suggests caution when making BD diagnoses based on irritability alone as one of 2(A-level) symptoms for BD diagnosis, particularly in view of its frequent presentation with other psychopathologies.Ahmed Z Elmaadawi Peter S Jensen L Eugene Arnold Brooke SG Molina Lily Hechtman Howard B Abikoff Stephen P Hinshaw Jeffrey H Newcorn Laurence Lee Greenhill James M Swanson Cathryn A Galanter 2015World Journal of Psychiatry2015,5,4:3
8全科医疗风险管理(一)显示文摘Richardg Roberts Kathleen Swanson 梁万年 瓮学清 2005中国全科医学2005,8,7:3
9Surgical Resection Versus Palliative Chemoradiotherapy for the Management of Pancreatic Cancer with Local Venous Invasion: A Decision Analysis显示文摘Michael A. Abramson Edward W. Swanson Edward E. Whang 2009Journal of Gastrointestinal Surgery2009,,1:3
10Alcohol, intestinal bacterial growth, intestinal permeability to endotoxin, and medical consequences: Summary of a symposium显示文摘Vishnudutt Purohit J. Christian Bode Christiane Bode David A. Brenner Mashkoor A. Choudhry Frank Hamilton Y. James Kang Ali Keshavarzian Radhakrishna Rao R. Balfour Sartor Christine Swanson Jerrold R. Turner 2008Alcohol2008,,5:3
11Thoracoscopic segmentectomy compares favorably with thoracoscopic lobectomy for patients with small stage I lung cancer显示文摘Mark Shapiro Todd S. Weiser Juan P. Wisnivesky Cynthia Chin Michael Arustamyan Scott J. Swanson 2009The Journal of Thoracic and Cardiovascular Surgery2009,,6:3
12Context-dependent regulation of pectoralis myostatin and lipid transporters by temperature and photoperiod in dark-eyed juncos显示文摘Yufeng ZHANG Kathleen EYSTER David L. SWANSON 2018Current Zoology2018,64,1:3
13Surgery for Early-Stage Non-Small Cell Lung Cancer: A Systematic Review of the Video-Assisted Thoracoscopic Surgery Versus Thoracotomy Approaches to Lobectomy显示文摘Bryan A. Whitson Shawn S. Groth Susan J. Duval Scott J. Swanson Michael A. Maddaus 2008The Annals of Thoracic Surgery2008,,6:3
14Who Would Have Thought It? An Operation Proves to Be the Most Effective Therapy for Adult-Onset Diabetes Mellitus显示文摘Walter J. Pories Melvin S. Swanson Kenneth G. MacDonald Stuart B. Long Patricia G. Morris Brenda M. Brown Hisham A. Barakat Richard A. deRamon Gay Israel Jeanette M. Dolezal Lynis Dohm 1995Annals of Surgery1995,,3:2
15Hepatitis B vaccination in patients with inflammatory bowel disease显示文摘AIM:To determine the prevalence for hepatitis B virus(HBV) and HBV screening and vaccination practices for inflammatory bowel disease(IBD).METHODS:This study is a retrospective,cross-sectional observational study.A retrospective chart review was performed in 500 patients who have been consecutively treated for IBD between September 2008 and January 2013 at the Rush University Medical Center Gastroenterology section.The patients were identified through the electronic medical record with the criteria that they attended the gastroenterology clinic,and that they had a diagnosis of IBD at the time of visit discharge.Once identified,each record was analyzed to determine whether the subject had been infected with HBV in the past,already been vaccinated against HBV,or advised to get vaccinated and followed through with the recommended vaccination.RESULTS:About 254 out of 500 patients(51%) had HBV screening ordered.Among those ordered to have screening tests,86% followed through with HBV serology.Gastroenterology physicians had significantly different screening ratios from each other(P < 0.001).There were no significant differences in the ratios of HBV screening when IBD specialists were compared to other gastroenterology physicians(0.505 ± 0.023 vs 0.536 ± 0.066,P = 0.66).Of those 220 patients screened,51% of IBD patients were found not to be immune against HBV.Approximately 50% of gastroenterology physicians recommended HBV vaccinations to their patients in whom serology was negative for antibodies against HBV.IBD specialists recommended vaccinations to a higher percentage of their patients compared to other gastroenterology physicians(0.168 ± 0.019 vs 0.038 ± 0.026,P = 0.015).Present and/or past HBV infection was found in 3.6% of the patients who had serology checked.There was no statistically significant difference in the prevalence of hepatitis B surface antigen(HBsAg) between our study and that reported in previous studies done in Spain(4/220 vs 14/2076 respectively,P = 0.070); and in France(4/220 vs 3/315 respectively,P = 0.159).But,the prevalence of anti-HBcAb in this study was less than that reported in the study in Spain(7/220 vs 155/2076 respectively,P = 0.006); and was not sig-nificantly different from that reported in the study in France(7/220 vs 8/315 respectively,P = 0.313).CONCLUSION:The prevalence of HBsAg in our IBD patients was not higher than previously reported European studies.Most IBD patients are not routinely screened or vaccinated against HBV at a tertiary referral center in the United States.Ruwaida Ben Musa Anuhya Gampa Sanjib Basu Ali Keshavarzian Garth Swanson Michael Brown Rana Abraham Keith Bruninga John Losurdo Mark DeMeo Sohrab Mobarhan David Shapiro Ece Mutlu 2014World Journal of Gastroenterology2014,20,41:2
16Congenital Cytomegalovirus Infection: New Prospects for Prevention and Therapy显示文摘Elizabeth C. Swanson Mark R. Schleiss 2012The Pediatric Clinics of North America2012,,:2
17Short range structure in the X (3872)显示文摘Eric S. Swanson 2004Physics Letters B2004,,3:2
18Efficient isolation of microspores and the production of microspore-derived embryos from Brassica napus显示文摘Eric B. Swanson Marc P. Coumans Sau Ching Wu Tina L. Barsby W. D. Beversdorf 1987Plant Cell Reports1987,,2:2
19Multimedia data-embedding and watermarking technologies 显示文摘Swanson M Kobayashi M Tewfik A 1998Proceedings of the IEEE1998,86,6:2
20Robust audio watermarking using perceptual masking显示文摘Swanson M Zhu B TewfikA 1998Signal Processing1998,66,3:2
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