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| 1 | 城市自然景区游客环境责任行为影响因素研究显示文摘城市自然景区是城市中不可多得的旅游资源和游憩空间,游客旅游行为对城市自然景区的游憩冲击一直是城市旅游管理亟待解决的棘手问题,研究游客的环境责任行为是控制游憩负面冲击,增强城市自然景区可持续发展能力的有效途径。本研究在国内外文献综述和实践观察基础上,将游客社会责任意识引入游客环境冲击感知和环境责任行为的关系研究中,建立了包含生态环境冲击感知、不友善行为感知、游客冲突感知和设施管理冲击感知四个游憩冲击感知变量,自我约束行为和保护促进行为两个环境责任行为变量的'游憩冲击感知—社会责任意识—环境责任行为'理论模型,应用问卷调查和结构方程模型,以长沙岳麓山国家5A级景区为案例,对城市自然景区游客环境责任行为的影响因素及其相互关系展开定量实证研究。研究发现:(1)游客游憩冲击感知对环境责任行为的直接影响作用较小,生态环境冲击感知对环境保护促进行为具有显著正向影响;(2)游客社会责任意识对环境自我约束行为具有显著正向影响,其在游客环境冲击感知、设施管理冲击感知、游客冲突感知与环境责任行为的影响关系中起中介作用;(3)游客冲击感知对社会责任意识的影响主要表现为游客生态环境冲击感知和设施管理冲击感知对游客社会责任意识具有显著的正向影响,而游客冲突感知对游客社会责任意识具有显著的负向影响。根据研究结论,文章最后指出城市自然景区游客环境责任行为若干管理启示。 | 罗文斌 张小花 钟诚 孟贝 TIMOTHY D J | 2017 | 中国人口·资源与环境2017，27，5： | 30 |
| 2 | Passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts and assessment of clinical outcomes显示文摘AIM To assess for passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts(TIPS) and compare outcomes with maximally dilated TIPS.METHODS Polytetrafluoroethylene covered TIPS(Viatorr) from July 2002 to December 2013 were retrospectively reviewed at two hospitals in a single institution. Two hundred and thirty patients had TIPS maximally dilated to 10 mm(m TIPS), while 43 patients who were at increased risk for hepatic encephalopathy(HE), based on clinical evaluation or low pre-TIPS portosystemic gradient(PSG), had 10 mm TIPS sub-maximally dilated to 8 mm(sm TIPS). Group characteristics(age, gender, Model for End-Stage Liver Disease score, post-TIPS PSG and clinical outcomes were compared between groups, including clinical success(ascites or varices), primary patency,primary assisted patency, and severe post-TIPS HE. A subset of fourteen patients with sm TIPS underwent follow-up computed tomography imaging after TIPS creation, and were grouped based on time of imaging(< 6 mo and > 6 mo). Change in diameter and crosssectional area were measured with 3D imaging software to evaluate for passive expansion.RESULTS Patient characteristics were similar between the sm TIPS and m TIPS groups, except for pre-TIPS portosystemic gradient, which was lower in the sm TIPS group(19.4 mm Hg ± 6.8 vs 22.4 mm Hg ± 7.1, P = 0.01). Primary patency and primary assisted patency between sm TIPS and m TIPS was not significantly different(P = 0.64 and 0.55, respectively). Four of the 55 patients(7%) with sm TIPS required TIPS reduction for severe refractory HE, while this occurred in 6 of the 218 patients(3%) with m TIPS(P = 0.12). For the 14 patients with follow-up computed tomography(CT) imaging, the median imaging follow-up was 373 d. There was an increase in median TIPS diameter, median percent diameter change, median area, and median percent area change in patients with CT follow-up greater than 6 mo after TIPS placement compared to follow-up within 6 mo(8.45 mm, 5.58%, 56.04 mm^2, and 11.48%, respectively, P = 0.01).CONCLUSION Passive expansion of sm TIPS does occur but clinical outcomes of sm TIPS and m TIPS were similar. Sub-maximal dilation can prevent complications related to overshunting in select patients. | Michael C Hsu Charles N Weber S William Stavropoulos Timothy W Clark Scott O Trerotola Richard D Shlansky Goldberg Michael C Soulen Gregory J Nadolski | 2017 | World Journal of Hepatology2017，9，12： | 11 |
| 3 | Gastro-duodenal disease in Africa: Literature review and clinical data from Accra, Ghana显示文摘Gastroduodenal disease(GDD)was initially thought to be uncommon in Africa.Amongst others,lack of access to optimal health infrastructure and suspicion of conventional medicine resulted in the reported prevalence of GDD being significantly lower than that in other areas of the world.Following the increasing availability of flexible upper gastro-intestinal endoscopy,it has now become apparent that GDD,especially peptic ulcer disease(PUD),is prevalent across the continent of Africa.Recognised risk factors for gastric cancer(GCA)include Helicobater pylori(H.pylori),diet,Epstein-Barr virus infection and industrial chemical exposure,while those for PUD are H.pylori,non-steroidal antiinflammatory drug(NSAID)-use,smoking and alcohol consumption.Of these,H.pylori is generally accepted to be causally related to the development of atrophic gastritis(AG),intestinal metaplasia(IM),PUD and distal GCA.Here,we perform a systematic review of the patterns of GDD across Africa obtained with endoscopy,and complement the analysis with new data obtained on premalignant gastric his-topathological lesions in Accra,Ghana which was compared with previous data from Maputo,Mozambique.As there is a general lack of structured cohort studies in Africa,we also considered endoscopy-based hospital or tertiary centre studies of symptomatic individuals.In Africa,there is considerable heterogeneity in the prevalence of PUD with no clear geographical patterns.Furthermore,there are differences in PUD within-country despite universally endemic H.pylori infection.PUD is not uncommon in Africa.Most of the African tertiary-centre studies had higher prevalence of PUD when compared with similar studies in western countries.An additional intriguing observation is a recent,ongoing decline in PUD in some African countries where H.pylori infection is still high.One possible reason for the high,sustained prevalence of PUD may be the significant use of NSAIDs in local or over-the-counter preparations.The prevalence of AG and IM,were similar or modestly higher over rates in western countries but lower than those seen in Asia..In our new data,sampling of 136 patients in Accra detected evidence of pre-malignant lesions(AG and/or IM)in 20 individuals(14.7%).Likewise,the prevalence of pre-malignant lesions,in a sample of 109 patients from Maputo,were 8.3%AG and 8.3%IM.While H.pylori is endemic in Africa,the observed prevalence for GCA is rather low.However,cancer data is drawn from country cancer registries that are not comprehensive due to considerable variation in the availability of efficient local cancer reporting systems,diagnostic health facilities and expertise.Validation of cases and their source as well as specificity of outcome definitions are not explicit in most studies further contributing to uncertainty about the precise incidence rates of GCA on the continent.We conclude that evidence is still lacking to support(or not)the African enigma theory due to inconsistencies in the data that indicate a particularly low incidence of GDD in African countries. | Timothy N Archampong Richard H Asmah Cathy J Richards Vicki J Martin Christopher D Bayliss Edília Botao Leonor David Sandra Beleza Carla Carrilho | 2019 | World Journal of Gastroenterology2019，25，26： | 3 |
| 4 | Meeting report:a hard look at the state of enamel research显示文摘The Encouraging Novel Amelogenesis Models and Ex vivo cell Lines(ENAMEL) Development workshop was held on 23 June 2017 at the Bethesda headquarters of the National Institute of Dental and Craniofacial Research(NIDCR). Discussion topics included model organisms, stem cells/cell lines, and tissues/3 D cell culture/organoids. Scientists from a number of disciplines,representing institutions from across the United States, gathered to discuss advances in our understanding of enamel, as well as future directions for the field. | ophir d klein olivier duverger wendy shaw rodrigo s lacruz derk joester janet moradian-oldak megan k pugach j timothy wright sarah e millar ashok b kulkarni john d bartlett thomas gh diekwisch pamela den besten james p simmer | 2017 | International Journal of Oral Science2017，9，4： | 3 |
| 5 | Near stoichiometric silicon carbide from an economical polysilane precursor显示文摘 | SEYFERTH D TIMOTHY G HENRY J | 1992 | J Am Ceram Soc1992，75，5： | 2 |
| 6 | Intercalibration of vegetation indices from different sensor systems显示文摘 | Michael D Steven Timothy J Malthus Frédéric Baret Hui Xu Mark J Chopping | 2003 | Remote Sensing of Environment2003，，4： | 2 |
| 7 | Tourism growth, national development and regional inequality in Turkey 显示文摘 | Tosun C Timothy D J Ozturk Y | 2003 | Journal of Sustainable Tourism2003，11，23： | 1 |
| 8 | LIGHT, a New Member of the TNF Superfamily, and Lymphotoxin α Are Ligands for Herpesvirus Entry Mediator显示文摘 | Davide N Mauri Reinhard Ebner Rebecca I Montgomery Kristine D Kochel Timothy C Cheung Guo-Liang Yu Steve Ruben Marianne Murphy Roselyn J Eisenberg Gary H Cohen Patricia G Spear Carl F Ware | 1998 | Immunity1998，，： | 1 |
| 9 | Altered tumor biology and tumorigenesis in irradiated and chemical carcinogen-treated single and combined Connexin32/p27Kip1-deficient mice显示文摘 | TIMOTHY J K PAUL D L | 2005 | Cell Commun Adhes2005，12，56： | 1 |
| 10 | Body burden measurements and models to assess inhalation exposure to methyl tertiary butyl ether (MTBE)显示文摘 | Timothy J B James D P David A | 1997 | Air and Waste Manage1997，47，7： | 1 |
| 11 | Asymbiotic seed germination, in vitro seedling development, and greenhouse acclimatizalion of the threatened terrestrial orchid Bletia purpurea 显示文摘 | Daniela D Timothy R J Philip J K | 2008 | Plant Cell Tiss and Organ Cult2008，94，： | 1 |
| 12 | Cervical arthroplasty : the begin- ning,the middle,the end? 显示文摘 | Richards O Choi D Timothy J | 2012 | Br J Neurosurg2012，26，1： | 1 |
| 13 | Trehalose biosynthesis in Rhizobium leguminosarum:trifolii and its role in desiccation tolerance显示文摘 | Helen J M Holiday D Timothy A | 2007 | Applied and Environmental Microbiology2007，73，12： | 1 |
| 14 | The simulated microgravity environment maintains key metabolic functions and promotes aggregation of primary porcine hepatocytes显示文摘 | KONSTANTIONS J D LEONARD J N TIMOTHY J B | 2001 | Biochimica et Biophysica Acta2001，1526，： | 1 |
| 15 | Tourism and reconciliation between Mainland China and Taiwan 显示文摘 | Guo Y Kim S S Timothy D J | 2006 | Tourism Management2006，27，5： | 1 |
| 16 | Application of DNA markers to the management of Atlantic halibut(Hippoglossus hippoglossus ) broodstock 显示文摘 | Timothy R J Martin-Robichaud D J Michael E R | 2003 | Aquaculture2003，220，： | 1 |
| 17 | Transparent conducting Nnc oxide thin films doped with aluminum and molybdenum显示文摘 | JOEL N D TIMOTHY A G DAVID M W TERESA M B MATTHEW Y BOBBY T TIMOTHY J C | 2007 | Journal V-acuum Society Technology2007，25，4： | 1 |
| 18 | A simple inertial formulation of theshallow water equations for efficient two-dimensional flood inundationmodelling显示文摘 | Paul D B Matthew S H Timothy J F | 2010 | Journal of Hydrology2010，387，12： | 1 |
| 19 | Contested religious heritage: Differing views of Mormon heritage显示文摘 | Olsen D H Timothy D J | 2002 | Tourism Recreation Research2002，27，2： | 1 |
| 20 | Tourism Growth National Develop- ment and Regional Inequality in Turkey显示文摘 | Tosun C Timothy D J Qzturk Y | 2013 | Journal of Sustainable Tourism2013，11，2： | 1 |
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