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84篇 您的检索式:作者名="Bayan"
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1社会交互对用户知识付费意愿的作用机理研究显示文摘[目的/意义]知识付费产品数量众多,品质良莠不齐,使得用户付费意愿降低,这可能导致知识付费模式的失败。本文旨在研究社会交互对用户知识付费意愿的作用机理,考察信任和认同(包括认知维、情感维和评价维)对用户付费意愿的作用。[方法/过程]研究共收集有效问卷377份,采用SPSS和LISREL进行数据分析。[结果/结论]研究结果显示,信息交互和情感交互显著影响信任,信息交互和信任影响认同,信任和认同决定付费意愿。因此,知识付费平台应重视引导用户之间进行社会交互,培养用户对平台的信任和认同,以促进用户付费意愿。周涛 檀齐 Takirova Bayan 邓胜利 2019图书情报工作2019,63,4:24
2Production of global land cover data-GLCNMO显示文摘Global land cover is one of the fundamental contents of Digital Earth.The Global Mapping project coordinated by the International Steering Committee for Global Mapping has produced a 1-km global land cover datasetGlobal Land Cover by National Mapping Organizations.It has 20 land cover classes defined using the Land Cover Classification System.Of them,14 classes were derived using supervised classification.The remaining six were classified independently:urban,tree open,mangrove,wetland,snow/ice,andwater.Primary source data of this land cover mapping were eight periods of 16-day composite 7-band 1-km MODIS data of 2003.Training data for supervised classification were collected using Landsat images,MODIS NDVI seasonal change patterns,Google Earth,Virtual Earth,existing regional maps,and expert’s comments.The overall accuracy is 76.5%and the overall accuracy with the weight of the mapped area coverage is 81.2%.The data are available from the Global Mapping project website(http://gffzzdeb47a470fc54296hvbbquvkqqcxb6qkv.ffgz.tsg.suse.edu.cn/).TheMODISdata used,land cover training data,and a list of existing regional maps are also available from the CEReS website.This mapping attempt demonstrates that training/validation data accumulation from different mapping projects must be promoted to support future global land cover mapping.Ryutaro Tateishi Bayaer Uriyangqai Hussam Al-Bilbisi Mohamed Aboel Ghar Javzandulam Tsend-Ayush Toshiyuki Kobayashi Alimujiang Kasimu Nguyen Thanh Hoan Adel Shalaby Bayan Alsaaideh Tsevenge Enkhzaya Gegentana Hiroshi P.Sato 2011International Journal of Digital Earth2011,4,1:11
3Multi-criteria technique for mapping of debris-covered and clean-ice glaciers in the Shaksgam valley using Landsat TM and ASTER GDEM显示文摘Glaciers in the Shaksgam valley provide important fresh water resources to neighbourhood livelihood. Repeated creation of the glacier inventories is important to assess glacier–climate interactions and to predict future runoff from glacierized catchments. For this study, we applied a multi-criteria technique to map the glaciers of the Shaksgam valley of China, using Landsat Thematic Mapper(Landsat TM)(2009) and Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model version two(ASTER GDEM V2) data. The geomorphometric parameters slope, plan, and profile curvature were generated from ASTER GDEM. Then they were organized in similar surface groups using cluster analysis. For accurate mapping of supraglacial debris area, clustering results were combined with a thermal mask generated from the Landsat TM thermal band. The debris-free glaciers were identified using the band ratio(TM band 4/TM band 5) technique. Final vector maps of the glaciers were created using overlay tools in a geographic information system(GIS).Accuracy of the generated glacier outlines was assessed through comparison with glacier outlines based on the Second Chinese Glacier Inventory(SCGI) data and glacier outlines created from high-resolution Google Earth? images of 2009. Glacier areas derived using the proposed approach were 3% less than in the reference datasets. Furthermore, final glacier maps show satisfactory mapping results, but identification of the debris-cover glacier terminus(covered by thick debris layer) is still problematic. Therefore, manual editing was necessary to improve the final glacier maps.Alifu HAIRETI Ryutaro TATEISHI Bayan ALSAAIDEH Saeid GHARECHELOU 2016Journal of Mountain Science2016,13,4:5
4Honokiol-enhanced cytotoxic T lymphocyte activity against cholangiocarcinoma cells mediated by dendritic cells pulsed with damage-associated molecular patterns显示文摘BACKGROUND Cholangiocarcinoma or biliary tract cancer has a high mortality rate resulting from late presentation and ineffective treatment strategy. Since immunotherapy by dendritic cells (DC) may be beneficial for cholangiocarcinoma treatment but their efficacy against cholangiocarcinoma was low. We suggest how such antitumor activity can be increased using cell lysates derived from an honokioltreated cholangiocarcinoma cell line (KKU-213L5). AIM To increase antitumour activity of DCs pulsed with cell lysates derived from honokiol-treated cholangiocarcinoma cell line (KKU-213L5). METHODS The effect of honokiol, a phenolic compound isolated from Magnolia officinalis, on choangiocarcinoma cells was investigated in terms of the cytotoxicity and the expression of damage-associated molecular patterns (DAMPs). DCs were loaded with tumour cell lysates derived from honokiol-treated cholangiocarcinoma cells their efficacy including induction of T lymphocyte proliferation, proinflammatory cytokine production and cytotoxicity effect on target cholangiocarcinoma cells were evaluated. RESULTS Honokiol can effectively activate cholangiocarcinoma apoptosis and increase the release of damage-associated molecular patterns. DCs loaded with cell lysates derived from honokiol-treated tumour cells enhanced priming and stimulated T lymphocyte proliferation and type I cytokine production. T lymphocytes stimulated with DCs pulsed with cell lysates of honokiol-treated tumour cells significantly increased specific killing of human cholangiocarcinoma cells compared to those associated with DCs pulsed with cell lysates of untreated cholangiocarcinoma cells. CONCLUSION The present findings suggested that honokiol was able to enhance the immunogenicity of cholangiocarcinoma cells associated with increased effectiveness of DC-based vaccine formulation. Treatment of tumour cells with honokiol offers a promising approach as an ex vivo DC-based anticancer vaccine.Arunya Jiraviriyakul Worawat Songjang Pongsathorn Kaewthet Phachsita Tanawatkitichai Punyapat Bayan Sutatip Pongcharoen 2019World Journal of Gastroenterology2019,25,29:5
5MIST评价乳化沥青冷再生混合料水稳性研究显示文摘通过与劈裂强度试验、冻融劈裂试验进行对比,对MIST试验方法进行了研究。分析了试验温度、养生时间及空隙率对MIST试验结果的影响。结果表明:MIST试验与冻融劈裂试验结果较为接近;提高试验温度可在一定程度上加速水损害;乳化沥青冷再生混合料应加强早期养生及防水处理,空隙率变化值与TSR负相关。MIST可快速评定乳化沥青冷再生混合料水稳性能。周水文 张蓉 MOUHAMED BAYANE BOURAIMA 张晓华 王海朋 2017中外公路2017,37,3:5
6Impact of viscosity modifier on asphalt properties used for bus rapid transit lanes in Chengdu显示文摘In order to find the effect of different viscosity modifier dosages on asphalt binder's performance in bus rapid transit lanes in the city of Chengdu, three different viscosity modifiers were analyzed: T AFPACK-super(TPS), high-viscosity additive(HVA) and road-sciencetechnology(RST), and four different asphalt binders were investigated through laboratory experiments. The percentages of the viscosity modifiers used were: TPS(0%, 8%,10%, 12%, 14% and 16%) and RST and HVA(8% and12%) depending on the type of asphalt binder. Technical indicators of modifier asphalt were tested through conventional and unconventional binder tests. It has been found out that only a percentage greater than or equal to14% TPS is reasonable to achieve the requirement set by20,000 Pa-s for the 60 ℃ dynamic viscosity on local #70 grade asphalt. The results indicate that conventional binders did not meet the requirements of the 60 ℃ dynamic viscosity when 12% of TPS or HVA modifiers were used. In addition, the B-type styrene-butadienne—styrene(SBS)modified asphalt binder has better viscosity balance than the A-type SBS modified when 8% of each of the three different kinds of viscosity modifiers is used. Therefore, the B-type modified SBS thus appears to be a suitable choice in asphalt mixtures for bus rapid transit lane with the 60 ℃dynamic viscosity.Mouhamed Bayane Bouraima Xiaohua Zhang Shuiwen Zhou Yanjun Qiu 2017Journal of Modern Transportation2017,25,3:4
7Profiling cellular bioenergetics, glutathione levels, and caspase activities in stomach biopsies of patients with upper gastrointestinal symptoms显示文摘AIM: To measure biochemical parameters in stomach biopsies and test their suitability as diagnostic biomarkers for gastritis and precancerous lesions.METHODS: Biopsies were obtained from the stomachs of two groups of patients(n = 40) undergoing fiberoptic endoscopy due to upper gastrointestinal symptoms. In the first group(n = 17), only the corpus region was examined. Biopsies were processed for microscopic examination and measurement of mitochondrial O2 consumption(cellular respiration), cellular adenosine triphosphate(ATP), glutathione(GSH), and caspase activity. In the second group of patients(n = 23), both corpus and antral regions were studied. Some biopsies were processed for microscopic examination, while the others were used for measurements of cellular respiration and GSH level.RESULTS: Microscopic examinations of gastric corpus biopsies from 17 patients revealed normal mucosae in 8 patients, superficial gastritis in 7 patients, and chronic atrophic gastritis in 1 patient. In patients with normal histology, the rate(mean ± SD) of cellular respiration was 0.17 ± 0.02 μmol/L O2 min-1 mg-1, ATP content was 487 ± 493 pmol/mg, and GSH was 469 ± 98 pmol/mg. Caspase activity was detected in 3 out of 8 specimens. The values of ATP and caspase activity were highly variable. The presence of superficial gastritis had insignificant effects on the measured biomarkers. In the patient with atrophic gastritis, cellular respiration was high andATP was relatively low, suggesting uncoupling oxidative phosphorylation. In the second cohort of patients, the examined biopsies showed either normal or superficial gastritis. The rate of cellular respiration(O2. μmol/L min-1 mg-1) was slightly higher in the corpus than the antrum(0.18 ± 0.05 vs 0.15 ± 0.04, P = 0.019). The value of GSH was about the same in both tissues(310 ± 135 vs 322 ± 155, P = 0.692).CONCLUSION: The corpus mucosa was metabolically more active than the antrum tissue. The data in this study will help in understanding the pathophysiology of gastric mucosa.Ali S Alfazari Bayan Al-Dabbagh Wafa Al-Dhaheri Mazen S Taha Ahmad A Chebli Eva M Fontagnier Zaher Koutoubi Jose Kochiyi Sherif M Karam Abdul-Kader Souid 2015World Journal of Gastroenterology2015,21,2:2
8A facile and one-pot electrochemical method for the synthesis of a new anthraquinonethioether显示文摘反应电气化学地与 2-mercaptobenzothiazole 和 2-mercaptobenzoxazole 作为一个迈克尔领受人产生了 anthradiquinone,,在乙醇 / 水混合物的 nucleophiles 借助于周期的 voltammetry 被学习了。我们的 voltammetric 数据显示那生产 anthradiquinone 参予有 nucleophiles 并且经由 ECEC 机制的反应变换成新 anthraquinonethioether 衍生物的迈克尔增加。基于 EC 机制,有 nucleophiles 的 anthradiquinone 的迈克尔反应的观察的同类的率常数被把试验性的周期的 voltammograms 与数字模仿的结果作比较估计。Davood Nematollahi Bayan Moradi Fahimeh Varmaghani 2012Chinese Chemical Letters2012,23,5:2
9Effects of Mesopotamian Marsh (Iraq) desiccation on the cultural knowledge and livelihood of Marsh Arab women显示文摘In this study,we evaluate ecological and cultural resiliency in response to desertification of the Mesopotamian Marshes of Southern Iraq.Our research illustrates that the desiccation of the marshes has caused a drastic change in how Marsh Arab women interact with their environment;specifically,in comparison to the predesiccation period,women’s roles are increasingly limited to domestic rather than marsh-dependent activities.With the exception of raising water buffalo and limited horticulture activities,most families today have little opportunity to utilize women’s ability to generate income by applying their traditional ecological knowledge and skills.Furthermore,these women are no longer transmitting their marsh-specific knowledge and skills to the next generation,and these valuable and ancient cultural memories are being lost.Upstream dam construction,drought,and regional climate change is depriving Marsh Arab communities of marsh eco-system services such as potable water,water buffalo forage,fish yields,and reed production.In marsh areas,where enough water remains to sustain ecosystem services(such as in Chibayish and the Iraq Marshlands Na-tional Park),cultural knowledge has been retained and passed on to the next generations.We recommend that programs be implemented to preserve these traditional skills,to develop a market for handicrafts to support women and their families,and to support cultural knowledge.Otherwise,with the passing of the older genera-tion,these remnants of ancient Sumerian knowledge systems and traditional ways of life will soon be forgotten.Nadia Al-Mudaffar Fawzi Kelly P.Goodwin Bayan A.Mahdi Michelle L.Stevens 2016Ecosystem Health and Sustainability2016,2,3:2
10The effect of usage and size on tractor depreciation显示文摘Perry G M Bayaner A Nixon C J 1990American Journal of Agricultural Economics1990,72,2:1
11Characteristics of patients with columnar-lined Barrett's esophagus and risk factors for progression to esophageal adenocarcinoma显示文摘AIM: To determine the risk factors for the development of esophageal adenocarcinoma in these patients with columnar-lined esophagus (CLE).METHODS: Data collected retrospectively on 597consecutive patients diagnosed at endoscopy and histology to have CLE at Leeds General Infirmary between 1984 and 1995 were analyzed. Factors evaluated included age,sex, length of columnar segment, smoking, and drinking habits, history of non-steroidal ingestion, presence of endoscopic esophagitis, ulceration or benign strictures and presence of Helicobacter pylori in esophageal biopsies. Univariate and multivariate analyses were performed to identify risk factors for the development of adenocarcinoma.RESULTS: Forty-four patients presented or developed esophageal adenocarcinoma during follow-up.Independent risk factors for the development of adenocarcinoma in patients with CLE were males (OR 5.12,95%CI 2.04-12.84, P = 0.0005), and benign esophageal stricture (OR 4.37, 95%CI 2.02-9.45, P = 0.0002). Male subjects and patients who developed benign esophageal stricture constituted 86% (n = 38) of all patients who presented or developed esophageal adenocarcinoma.The presence of esophagitis was associated with a significant reduction in the development of esophageal carcinoma (OR 0.28, 95%CI 0.13-0.57, P = 0.0006). No other clinical characteristics differentiate between the non-malignant and malignant group.CONCLUSION: In patients with CLE, endoscopic surveillance for the early detection of adenocarcinoma may be restricted to male subjects, as well as patients who develop benign esophageal strictures.Kamal E Bani-Hani Bayan K Bani-Hani Iain G Martin 2005World Journal of Gastroenterology2005,11,43:1
12Long-term effects of fertilizers application and three crop rotations on changes in the wed species in the 68^th cropping (after 26 years) 显示文摘KANDASAMY O S BAYAN H C SANTHY P 2000Acta Agronorrtica Hungarica2000,48,14:1
13Kinetic magnetic resonance imaging analysis of lumbar segmental mobility in patients without significant spondylosis显示文摘Yanlin Tan Bayan G Aghdasi 2012Eur Spine J2012,21,:1
14Effects of long-term prescribed burning on the activity of select soil enzymes in an oak-hickory forest显示文摘Eivazi F Bayan M R 1996Canadian Journal of Forest Research1996,26,:1
15Investigation of sampling frequency requirements for acoustic source localisation using wireless sensor networks显示文摘Omar M. Bouzid Gui Yun Tian Jeff Neasham Bayan Sharif 2013Applied Acoustics2013,,2:1
16Effects of long-term prescribed bum- ing on the activity of selected soil enzymes in an oak-hick- ory forest 显示文摘Eivazi F Bayan M R 1996Canadian Journal of Forest Research1996,26,10:1
17Isolation and characterisation of new spore-forming lactic acid bacteria with prospects of use in food fermenta- tions and probiotic preparations 显示文摘Bayane A Diawara B Dubois R D 2010African Journal of Microbiology Re- search2010,4,11:1
18Directed growth characteristics and optoeleetronic properties of Eu-doped ZnO nano- rods and urchins 显示文摘Bayan S Mohanta D 2010Journal of Applied Physics2010,108,02:1
19Design of Microwave Baluns with Flexible Structures显示文摘Mi Zhou Jin Shao Bayaner Arigong 2014Microwave and Wireless Com- ponents Letters IEEE2014,24,10:1
20Select soil enzyme activities in the historic sanborn field as affected by long term cropping systems显示文摘Eivazi F Bayan M R 2003Commu- nications in Soil Science and Plant Analysis2003,,34:1
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