检索范围:
排序: 展示方式:
Sander SIEBELINK, Hans VOORDIJK, Maaike ENDEDIJK, Arjen ADRIAANSE
《工程管理前沿(英文)》 2021年 第8卷 第2期 页码 236-257 doi: 10.1007/s42524-019-0088-2
关键词: building information modeling implementation barriers maturity organizational levels
Ai-hua Huang,Guo-tao Guo,Hai-xia Qiu
《工程管理前沿(英文)》 2015年 第2卷 第1期 页码 31-34 doi: 10.15302/J-FEM-2015005
关键词: personal-organizational values fit job involvement perceived organizational support new generation of employees
《农业科学与工程前沿(英文)》 2023年 第10卷 第1期 页码 135-148 doi: 10.15302/J-FASE-2022464
● The choice of a modern agriculture project was found to be rational for professional farmers to reduce interference from non-market factors. The success of this project is due to its capacity to successfully fill the structural hole in the market transaction network.
关键词: Benefit-linked mechanism featured agriculture organizational integration professional farmers rural cooperative structural hole theory
《工程管理前沿(英文)》 页码 439-454 doi: 10.1007/s42524-022-0211-7
关键词: megaproject organizational evolution whole lifecycle management project management team
The psychology of organizational and social sustainability
Wei-Tau LEE, Hao ZHANG, Kenneth H. FUNK II
《工程管理前沿(英文)》 2019年 第6卷 第3期 页码 336-350 doi: 10.1007/s42524-019-0029-0
关键词: work design work dimensions psychological factors good work
Jiangtao YAN, Rutai HUI, Daowen WANG
《医学前沿(英文)》 2009年 第3卷 第1期 页码 30-35 doi: 10.1007/s11684-009-0005-x
null
《农业科学与工程前沿(英文)》 2019年 第6卷 第4期 页码 357-365 doi: 10.15302/J-FASE-2019275
Phosphorus (P) is essential for life and for efficient crop production, but global P use with limited recycling is inefficient in several sectors, including agronomy. Unfortunately, plant physiologists, agronomists, farmers and end users employ different measures for P use efficiency (PUE), which often masks their values at different scales. The term P use effectiveness, which also considers energetic and sustainability measures in addition to P balances, is also a valuable concept. Major physiological and genetic factors for plant P uptake and utilization have been identified, but there has been limited success in genetically improving PUE of modern crop cultivars. In maize, studies on root architectural and morphological traits appear promising. Rhizosphere processes assist in mobilizing and capturing sparingly soluble phosphate from rock phosphate. Combinations of phosphate-solubilizing microorganisms with ammonium-based nitrogen fertilizer, as well as strategies of fertilizer placement near the roots of target crops, can moderately enhance PUE. The desired concentration of P in the products differs, depending on the final use of the crop products as feed, food or for energy conversion, which should be considered during crop production.
关键词: acquisition efficiency plant growth promoting rhizobacteria phosphate use efficiency utilization efficiency
Predicting the response of continuous RC deep beams under varying levels of differential settlement
M. Z. NASER, R. A. HAWILEH
《结构与土木工程前沿(英文)》 2019年 第13卷 第3期 页码 686-700 doi: 10.1007/s11709-018-0506-2
关键词: concrete continuous beams deep beams finite element modeling support settlement
Trends in serum lipid levels of healthy Chinese in Shanghai from 1973 to 1999
CHEN Haozhu, ZHOU Jun, CHEN Bin, ZHUANG Hanzhong, JIN Xuejuan, HAN Qingqing
《医学前沿(英文)》 2008年 第2卷 第1期 页码 5-10 doi: 10.1007/s11684-008-0002-5
Causations of failure in megaprojects: A case study of the Ajaokuta Steel Plant project
Oluwole Alfred OLATUNJI
《工程管理前沿(英文)》 2018年 第5卷 第3期 页码 334-346 doi: 10.15302/J-FEM-2018011
This paper uses project organizational theories to draw lessons from a historic megaproject, the Ajaokuta Steel Plant (ASP). Archival reports on the ASP were explored to identify the unique attributes of the project; the political wrangling that underplayed its evolution, its economic significance and organizational impacts. Findings suggest the goals of the ASP project were, and still are, unambiguous. Failure occurred as socio-political forces aggravated the project’s complex milestones. Stakeholders were impatient with pre-project investigations. During planning, owners ignored opinions that were contrary to their expectations. While delays lingered, pressures from the global economy weakened the project’s motivation to succeed. These combined to turn the project’s outcomes into a chaotic situation that triggered dire implications. Despite about 1400% overrun in cost, the success achieved on the plant was 28% at commissioning. Contractors remained on site until eight years after commissioning. Six key elements of the 482 items in the ASP project contract were not delivered nearly 40 years on. A simplistic look at these suggests poor planning is the main problem. However, planning issues is not entirely strange in greenfield projects. The paper draws strength from project organization theories to explain what was poor about the planning. Socrates’ generic management theory was used to explain the role of leadership in the failure of the ASP project. McGregor’s Theory X and Theory Y explain the significance of stakeholders’ integration in megaprojects. Systems and chaos theories were used to explain the sensitivity of the ASP project to uncertainties. Narratives on these combine well to inspire stakeholders of megaprojects on where and how to seek courage in making effective plans that can help achieve success in complex projects. While normative literature only recognizes project success in a definitive perspective, this study provides insights from failure as an instrument to trigger sublime reflections.
关键词: industrial projects megaprojects Nigeria project organizational theories steel plant
Inheritance and Innovation of Engineering Management Informatization
Kai Sun,Ren-huai Liu
《工程管理前沿(英文)》 2014年 第1卷 第1期 页码 76-82 doi: 10.15302/J-FEM-2014014
关键词: engineering management informatization inter-organizational relationship management creation resource sharing
Nutrient status and pollution levels in five areas around a manganese mine in southern China
Kehui Liu, Xiaolu Liang, Chunming Li, Fangming Yu, Yi Li
《环境科学与工程前沿(英文)》 2020年 第14卷 第6期 doi: 10.1007/s11783-020-1279-0
关键词: Ecological reclamation Ecological risk assessment Heavy metal Mn mine Soil nutrients
JU Ying, CHEN Lan, JIANG Qi, YANG Kedi, CHEN Xuemin, XU Guojian, LI Liping
《医学前沿(英文)》 2008年 第2卷 第3期 页码 276-282 doi: 10.1007/s11684-008-0052-8
null
《医学前沿(英文)》 2012年 第6卷 第4期 页码 411-415 doi: 10.1007/s11684-012-0226-2
Ketamine exerts rapid and robust antidepressant properties in both animal models and depressed patients and tramadol possesses potential antidepressant effects. Brain-derived neurotrophic factor (BDNF) is an important biomarker for mood disorders and tropomyosin-related kinase B (TrkB) is a high affinity catalytic receptor for BDNF. We hypothesized that tramadol pretreatment might reinforce ketamine-elicited antidepressant effects with significant changes in hippocampal BDNF and TrkB levels in rats. Immobility time of rats receiving different treatment in the forced swimming test (FST) was observed. Levels of BDNF and TrkB in hippocampus were measured by enzyme linked immunosorbent assay. Results showed that tramadol (5 mg/kg) administrated alone neither elicited antidepressant effects nor altered BDNF or TrkB level. However, pretreatment with tramadol (5 mg/kg) enhanced the ketamine (10 mg/kg) -elicited antidepressant effects and upregulated the BDNF and TrkB levels in hippocampus. In conclusion, tramadol pretreatment reinforces the ketamine-elicited antidepressant effects, which is associated with the increased levels of BDNF and TrkB in rat hippocampus.
关键词: tramadol ketamine antidepressant brain-derived neurotrophic factor tropomyosin-related kinase B
null
《医学前沿(英文)》 2011年 第5卷 第1期 页码 101-105 doi: 10.1007/s11684-011-0111-4
It has been demonstrated that β-elemene could protect against carbon tetrachloride (CCl4)-induced liver fibrosis in our laboratory work, and the aim of this paper is to reveal the protective mechanisms of β-elemene. The hepatic fibrosis experimental model was induced by the hypodermical injection of CCl4 in Wistar male rats. β-elemene was intraperitoneally administered into rats for 8 weeks (0.1 mL/100 g bodyweight per day), and plasma endotoxin content was assayed by biochemistry. The serum TNF-α level was detected using radioactive immunity. CD14 expression in rat livers was measured by immunohistochemistry and Western blot. The results showed that β-elemene can downregulate the levels of plasma endotoxins, serum TNF-α, and hepatic CD14 expression in rats with liver fibrosis. β-elemene plays an important role in downregulating the lipopolysaccharide signal transduction pathway, a significant pathway in hepatic fibrosis development.
标题 作者 时间 类型 操作
Understanding barriers to BIM implementation: Their impact across organizational levels in relation to
Sander SIEBELINK, Hans VOORDIJK, Maaike ENDEDIJK, Arjen ADRIAANSE
期刊论文
Research on the Relationship between Personal-Organizational Values Fit and Job Involvement of the New
Ai-hua Huang,Guo-tao Guo,Hai-xia Qiu
期刊论文
ENTREPRENEURIAL OPPORTUNITY, VALUE EVOLUTION, AND ORGANIZATIONAL INTEGRATION OF PROFESSIONAL FARMER ENTREPRENEURSHIP
期刊论文
Organizational evolution of project management teams over the whole lifecycle of megaprojects: Case study
期刊论文
The psychology of organizational and social sustainability
Wei-Tau LEE, Hao ZHANG, Kenneth H. FUNK II
期刊论文
Elevated C-reactive protein levels predict worsening prognosis in Chinese patients with first-onset stroke
Jiangtao YAN, Rutai HUI, Daowen WANG
期刊论文
Improving the efficiency and effectiveness of global phosphorus use: focus on root and rhizosphere levels
null
期刊论文
Predicting the response of continuous RC deep beams under varying levels of differential settlement
M. Z. NASER, R. A. HAWILEH
期刊论文
Trends in serum lipid levels of healthy Chinese in Shanghai from 1973 to 1999
CHEN Haozhu, ZHOU Jun, CHEN Bin, ZHUANG Hanzhong, JIN Xuejuan, HAN Qingqing
期刊论文
Causations of failure in megaprojects: A case study of the Ajaokuta Steel Plant project
Oluwole Alfred OLATUNJI
期刊论文
Nutrient status and pollution levels in five areas around a manganese mine in southern China
Kehui Liu, Xiaolu Liang, Chunming Li, Fangming Yu, Yi Li
期刊论文
Analyses of levels of thyroid hormones and its receptor expression in puerperants and newborns from an
JU Ying, CHEN Lan, JIANG Qi, YANG Kedi, CHEN Xuemin, XU Guojian, LI Liping
期刊论文
Tramadol reinforces antidepressant effects of ketamine with increased levels of brain-derived neurotrophic
null
期刊论文