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覆盖作物的生态效应

应用生态学报 2002年第3期13卷 365-368页

作者：刘晓冰宋春雨 Stephen j.herbert 邢宝山中国科学院黑龙江农业现代化研究所哈尔滨150040 美国麻省大学植物与土壤科学系

评述了农田生态系统中主要覆盖作物在减少土壤损失、降低表土迳流、增加土壤养分、减少NO-3 淋溶、减轻水质污染及病虫草防除中的作用与效应。

关键词：覆盖作物土壤侵蚀养分循环病虫草害生态效应

Re-evaluation of ABO gene polymorphisms detected in a genomewide association study and risk of pancreatic ductal adenocarcinoma in a Chinese population

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Chinese j.urnal of Cancer 2014年第2期33卷 68-73页

作者： Hong-Li Xu j.a-Rong Cheng Wei Zhang j.ng Wang herbert Yu Quan-Xing Ni Harvey A.Risch Yu-Tang Gao Department of Epidemiology Shanghai Cancer InstituteRenji Hospital Shanghai Jiaotong University School of Medicine Epidemiology Program University of Hawaii Cancer Center Department of Surgery Hua Shan Hospital Fudan University Department of Epidemiology and Public Health Yale University School of Public Health and Yale Cancer Center

Pancreatic cancer is a fatal malignancy with an increasing incidence in Shanghai, China. A genomewide association study(GWAS) and other work have shown that ABO alleles are associated with pancreatic cancer risk. We conducted a population-based case-control study involving 256 patients with pathologically confirmed pancreatic ductal adenocarcinoma(PDAC) and 548 healthy controls in Shanghai, China, to assess the relationships between GWAS-identified ABO alleles and risk of PDAC. Carriers of the C allele of rs505922 had an increased cancer risk [adj.sted odds ratio(OR) = 1.42, 95% confidence interval(CI): 1.02-1.98] compared to TT carriers. The T alleles of rs495828 and rs657152 were also significantly associated with an elevated cancer risk(adj.sted OR = 1.58, 95% CI: 1.17-2.14; adj.sted OR = 1.51, 95% CI: 1.09-2.10). The rs630014 variant was not associated with risk. We did not find any significant gene-environment interaction with cancer risk using a multifactor dimensionality reduction(MDR) method. Haplotype analysis also showed that the haplotype CTTC was associated with an increased risk of PDAC(adj.sted OR = 1.46, 95% CI: 1.12-1.91) compared with haplotype TGGT. GWAS-identified ABO variants are thus also associated with risk of PDAC in the Chinese population.

关键词：中国人群基因多态性全基因组胰腺癌风险关联导管评估

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再认、思维和学习的信息过程(续)

心理科学通讯 1989年第4期12卷 39-44页

作者： herbert A.Simon 荆其诚美国卡内基一梅隆大学中国科学院心理研究所

三、思维与推理在历史上,思维,特别是“逻辑”思维和数学思维一直是与形式逻辑和数学的严密性联系在一起的。这种观点代表如此不完善的真理,不如说根本就不是真理。这一错误是把逻辑学和数学的形式推论规则,其本身的功能是检验已作出的... 详细信息

三、思维与推理在历史上,思维,特别是“逻辑”思维和数学思维一直是与形式逻辑和数学的严密性联系在一起的。这种观点代表如此不完善的真理,不如说根本就不是真理。这一错误是把逻辑学和数学的形式推论规则,其本身的功能是检验已作出的推论是否有效,与发现可以从已有定律推论出来的新定律的过程相混淆而产生的。

关键词：数学思维信息过程产生式系统问题解决再认物理符号系统假设样例学习相互作用启发式形式逻辑

Biolog-ECO解析不同大豆基因型R1期根际微生物群落功能多样性特征

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大豆科学 2007年第4期26卷 565-570页

作者：金剑王光华陈雪丽刘晓冰 Stephen j.herbert 中国科学院东北地理与农业生态研究所黑土重点实验室美国麻省大学植物与土壤科学系

利用Biolog-Eco技术对2个不同大豆基因型R1期的根际和非根际微生物群落功能多样性进行研究。结果表明,大豆根际微生物利用碳源量在整个培养过程都显著高于非根际,根际微生物的生理活性显著地高于非根际;不同基因型大豆对根际微生物群落... 详细信息

利用Biolog-Eco技术对2个不同大豆基因型R1期的根际和非根际微生物群落功能多样性进行研究。结果表明,大豆根际微生物利用碳源量在整个培养过程都显著高于非根际,根际微生物的生理活性显著地高于非根际;不同基因型大豆对根际微生物群落功能多样性有显著影响,高产大豆北丰11根际微生物总体表现较高的活性,而且根际微生物利用碳源的类型有别于海9731,其利用羧酸类和多聚物相对较多,如α-丁酮酸、4-羟基苯甲酸、衣康酸、肝糖、吐温40和吐温80;而海9731利用氨基酸类及胺/氨类碳源较多,如腐胺和L-精氨酸。

关键词：大豆根际 AWCD 微生物多样性黑土

Innovation and financial performance of companies doing business in Brazil

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International j.urnal of Innovation Studies 2018年第4期2卷 153-164页

作者： j.liana Albuquerquer Saliba de Oliveira Leonardo Fernando Cruz Basso herbert Kimura Vinicius Amorim Sobreiro Mackenzie Presbyterian University Sao PauloSao Paulo01302-907Brazil Department of Management Campus Darcy RibeiroUniversity of BrasiliaFederal DistrictBrasilia70910-900Brazil

In this paper,we analyze the relationships among innovation efforts,the impacts of these innovations,and the financial performance of Brazilian *** hypothesize that innovation efforts do not directly translate into financial *** to the inherent uncertainty of innovative proj.cts,such efforts must first lead to effective innovation results or impacts before they are capable of contributing to a company's financial *** the Brazilian Institute of Geography and Statistics'(IBGE)comprehensive official databases on innovation and performance,we study 5,025 firms using exploratory factor analysis and structural equation *** results suggest that efforts in innovation possibly generate impacts;however,these impacts do not necessarily imply better financial ***,although firms'efforts may lead to new products,they will not contribute to financial gains in the short term,reflecting the risky and costly nature of *** study aims to contribute to the discussion on firm-level impacts of innovation from the context of a large developing country,since empirical results of the literature are mixed.

关键词： Innovation Efforts in innovation Impacts of innovation Financial performance PINTEC PIA

Critical assessment of a wide-spread method for estimating energy expenditure during accelerated running based on positioning tracking systems

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j.urnal of Sport and Health Science 2022年第6期11卷 641-643页

作者： Philip X.Fuchs Patrick Fuchs Serge P.von Duvillard herbert Wagner Tzyy-Yuang Shiang Department of Athletic Performance (National)Taiwan Normal UniversityTaipei 11677China Department of Sport and Exercise Science University of SalzburgSalzburg 5400Austria

*** An innovative method for estimating energy cost is to consider accelerated/decelerated running on flat terrain metabolically equivalent to uphill/downhill running at constant speed. In this method,the authors estimated an acceleration-dependent body *** slope corresponded to a given terrain slope during constant speed running,for which energy costs were known. Then they used accelerations(transformed into equivalent slopes)in a previously reported regression equation for energy cost estimation during uphill and downhill running at constant speed. This method allows researchers to estimate energy cost via player accelerations,thus making energy estimations feasible in team sports matches.

关键词： acceleration estimating transformed

Vehicle and pedestrian safety impacts of signal timing optimization in a dense urban street network

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j.urnal of Traffic and Transportation Engineering(English Edition) 2016年第1期3卷 16-27页

作者： Arash M.Roshandeh Zongzhi Li Shengrui Zhang herbert S.Leuinson Xi Lu Department of Engineering and Public Works City of AlpharettaGA 30009USA Department of civil Architectural and Environmental Engineeringillinois Institute of TechnologyChicagoIL 60616USA School of Highway Chang'an UniuersityXi'an 710064China herbert S.Leuinson Transportation Consultant New HauenCT 06492USA

Intersection signal timing optimization is expected to affect both traffic mobility and safety. However, in safety impacts analysis, the existing studies mainly focus on estimating changes in vehicle crashes without addressing the influence of pedestrian related crashes. This study aims to simultaneously assess the overall impacts of vehicle and pedestrian crashes caused by signal timing optimization in dense urban street networks. An empirical Bayesian analysis method was introduced to estimate the safety impacts of intersection signal timing optimization in an urban street network in terms of vehicle-tovehicle and vehicle-to-pedestrian crashes at intersections, as well as single and multiple vehicle crashes on street segments. A computational experiment was performed to apply the proposed method to the Chicago central business district that includes 875 signalized intersections and 2016 roadway segments. Results show that vehicle-to-vehicle and vehicle-to-pedestrian crashes at intersections are decreased in different crash severity levels and types, especially for angle and rear-end ones after signal timing optimization. Similar results are found for multi-vehicle rear-end crashes on street segments. These indicate that intersection signal timing optimization in dense urban street networks has a potential for improving traffic mobility, vehicle and pedestrian safety at intersections, and vehicle safety on street segments.

关键词： SignalOptimizationSafetyVehiclePedestrianEmpirical Bayesian analysis

The role of mitogen-activated protein kinases in chemoresistance of SW1990 pancreatic cancer cells

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The role of mitogen-activated protein kinases in chemoresist...

中华医学会第十一届全国胰腺外科学术研讨会

作者： j.rg Kleeff Po Sing Leung Helmut Friess herbert Chen Department of General Surgery University of HeidelbergHeidelbergGermany Department of Physiology Faculty of MedicineThe Chinese University of Hong Kong（CUHK）ShatinN.T.Hong Kong. Department of General Surgery University of HeidelbergHeidelbergGermany Section of Endocrine Surgery Department of SurgeryUniversity of WisconsinMadisonWI53792USA

＜正＞Background ＆ aim:Chemoresistance is an important clinical problem in pancreatic *** the mitogen-activated protein kinases（MAPKs）are involved in the chemoresistance of different tumor cells,the aim of the study was to assess the role and mechanism of MAPK pathways in mediating chemoresistance of pancreatic cancer cells. Methods:The effects of pharmacological inhibition of MAPKs on resistance of cells to apoptosis induced by chemotherapeutic drugs were ***:Compared with parental cells,the activity of extracellular signal-regulated kinase（ERK）was elevated in all of the three acquired chemoresistant sublines at basal conditions. Inhibition of the ERK pathway by PD98059 sensitized cells to 5-fiuorouracil,whereas cells became more resistant to adriamycin and gemcitabine.5-fiuorouracil induced apoptosis primarily via a caspase-8-dependent pathway,and adriamycin and gemcitabine via ***98059 enhanced the activity of caspase-8 and inhibited the activation of *** addition,PD98059 could regulate the level of phospho-Bcl-2 to some ***:These data suggest that although constitutive activation of the ERK pathway might be a marker of chemoresistance,the effects of this pathway on chemoresistance of pancreatic cancer cells are drug *** study also provides evidence for a possible link between the ERK pathway and activation of caspases and Bcl-2.

关键词： MAPK pancreatic cancer chemotherapy drug resistance apoptosis

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煤的非燃料化学产品

云南化工 1975年第Z1期 48-58页

作者： herbert j.West 云南化工厂技术资料室

当前的研究与发展工作证明能从煤和煤制得的油加氢生产液体与气体燃料。当前的研究与发展工作证明从煤与煤制得的油加氢生产液体与气体燃料的成本将能与天然气或石油燃料竞争。这方面的极大部份工作都是按照内政部煤研究局的合同进行的... 详细信息

当前的研究与发展工作证明能从煤和煤制得的油加氢生产液体与气体燃料。当前的研究与发展工作证明从煤与煤制得的油加氢生产液体与气体燃料的成本将能与天然气或石油燃料竞争。这方面的极大部份工作都是按照内政部煤研究局的合同进行的。其主要目标是为了在面对国内石油与天然气资源日趋枯竭的情况下保证非核能源的自给。Skeist 实验所承包了此项对非燃料副产品回收操作的经济价值的研究工作。我们的

关键词：石油化工石油化学工业有机化工原油石油石脑油加氢化工单元操作芳烃煤氢化