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    题名 作者 年代 出处 被引量
1复杂系统、知识管理与组织学习过程动态模型研究显示文摘知识经济时代的组织是一个具有无尺度网络结构的复杂系统。知识管理是知识经济时代的必然要求。组织学习作为组织获取核心竞争力和可持续发展能力的重要手段,是一个动态的过程。本文在系统回顾相关研究成果的基础上,从复杂系统的视角对知识经济时代复杂环境下的组织学习动态复杂过程进行了系统的模型整合和创新,并对构建学习型组织可能遇到的障碍进行了一系列对策分析。戴万稳 赵曙明 蒋建武 Steve F Foster 2006中国软科学2006,,6:25
2复杂系统视角下的组织学习动态过程研究显示文摘组织是一个具有无尺度网络结构的复杂系统。组织学习作为组织获取核心竞争力和可持续发展能力的重要手段,是一个动态的过程:从组织学习发生的载体来看,主要有个人、团队和组织等三个层次;就组织学习发生的方式来看,包括单环学习、双环学习和三环学习等三种模式;而从组织学习过程本身来看,则分为直觉感知、解释说明、归纳整合和制度化等四个子过程。本文在系统回顾相关研究成果的基础上,从复杂系统的角度对组织学习过程进行了系统的模型整合和创新,对复杂系统环境下如何构建学习型组织的可能遇到的障碍进行了一系列的分析。戴万稳 赵曙明 Steve F Foster 2006科学学研究2006,24,S1:6
3Counter-regulatory phosphatases TNAP and NPP1 temporally regulate tooth root cementogenesis显示文摘Cementum is critical for anchoring the insertion of periodontal ligament fibers to the tooth root. Several aspects of cementogenesis remain unclear, including differences between acellular cementum and cellular cementum, and between cementum and bone.Biomineralization is regulated by the ratio of inorganic phosphate(Pi) to mineral inhibitor pyrophosphate(PPi), where local Piand PPi concentrations are controlled by phosphatases including tissue-nonspecific alkaline phosphatase(TNAP) and ectonucleotide pyrophosphatase/phosphodiesterase 1(NPP1). The focus of this study was to define the roles of these phosphatases in cementogenesis. TNAP was associated with earliest cementoblasts near forming acellular and cellular cementum. With loss of TNAP in the Alpl null mouse, acellular cementum was inhibited, while cellular cementum production increased, albeit as hypomineralized cementoid. In contrast, NPP1 was detected in cementoblasts after acellular cementum formation, and at low levels around cellular cementum. Loss of NPP1 in the Enpp1 null mouse increased acellular cementum, with little effect on cellular cementum.Developmental patterns were recapitulated in a mouse model for acellular cementum regeneration, with early TNAP expression and later NPP1 expression. In vitro, cementoblasts expressed Alpl gene/protein early, whereas Enpp1 gene/protein expression was significantly induced only under mineralization conditions. These patterns were confirmed in human teeth, including widespread TNAP, and NPP1 restricted to cementoblasts lining acellular cementum. These studies suggest that early TNAP expression creates a low PPienvironment promoting acellular cementum initiation, while later NPP1 expression increases PPi, restricting acellular cementum apposition. Alterations in PPihave little effect on cellular cementum formation, though matrix mineralization is affected.Laura E Zweifler Mudita K Patel Francisco H Nociti Jr Helen F Wimer Jose L Milln Martha J Somerman Brian L Foster 2015International Journal of Oral Science2015,7,1:5
4Consecutive fecal calprotectin measurements for predicting relapse in pediatric Crohn's disease patients显示文摘BACKGROUND Asymptomatic children with Crohn's disease(CD) require ongoing monitoring to ensure early recognition of a disease exacerbation.AIM In a cohort of pediatric CD patients, we aimed to assess the utility of serial fecal calprotectin measurements to detect intestinal inflammatory activity and predict disease relapse.METHODS In this prospective longitudinal cohort study, children with CD on infliximab therapy in clinical remission were included. Fecal calprotectin levels were assessed at baseline and at subsequent 2-5 visits. Clinical and biochemical disease activity were assessed using the Pediatric Crohn's Disease Activity Index, Creactive protein and erythrocyte sedimentation rate at baseline and at visits over the following 18 mo.RESULTS 53 children were included and eighteen patients(34%) had a clinical disease relapse during the study. Baseline fecal calprotectin levels were higher in patients that developed symptomatic relapse [median(interquartile range), relapse 723μg/g(283-1758) vs 244 μg/g(61-627), P = 0.02]. Fecal calprotectin levels > 250μg/g demonstrated good predictive accuracy of a clinical flare within 3 mo(area under the receiver operator curve was 0.86, 95% confidence limits 0.781 to 0.937).CONCLUSION Routine fecal calprotectin testing in children with CD in clinical remission is useful to predict relapse. Levels > 250 μg/g are a good predictor of relapse in the following 3 mo. This information is important to guide monitoring standards used in this population.Alice Jane Foster Matthew Smyth Alam Lakhani Benjamin Jung Rollin F Brant Kevan Jacobson 2019World Journal of Gastroenterology2019,25,10:3
5Determination of optimal pacing strategy in track cycling with an energy flow model显示文摘DE KONING J J BOBBERT M F FOSTER C 1992J Sci Med Sport1992,2,3:1
6Variations in Trading VolumeReturn Volatility and Trading Covsts Evidence on RecentPrice Formation Models显示文摘Foster F Viswanathan S 1993Journal of Finance1993,48,1:1
7A laboratory study of rill hydraulics I:Veloeity relationships显示文摘Foster G R Huggins L F Meyer L D 1984Transactions of ASAE1984,27,3:1
8Beam steering with pulsed two dimensional transducer arrays显示文摘TURNBULL D H FOSTER F S 1991IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control1991,38,4:1
9Pattern of energy expenditure during simulated competition显示文摘FOSTER C DEKONING J HETTINGA F 2003Med Sci Sport Exe2003,35,5:1
10The use of malachite green as a fish fungicide and antisptic显示文摘FOSTER F J WOODBUR Y L 1936Prog Fish Cult1936,18,3:1
11Transmission of BSE by blood transfusion in sheep显示文摘Houston F Foster JD Chong A 2000Lancet2000,356,:1
12A History of Medical and Biological Imaging with Polyvinylidene Fluoride (PVDF) Transducers显示文摘Foster F S Harasiewicz K A Sherar M D 2000IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control2000,47,6:1
13Stereospecific high-performance liquid chromatographic assay of Iomefloxacin in human plasma显示文摘FOSTER R T CARR R A PASUTTO F M LONGSTRETH J A 1995J Pharm Biomed Anal1995,13,10:1
14Effect of competitive distance on energy expenditure during simulated competition显示文摘FOSTER C DE KONING J J HETTINGA F 2005Int Sport Exe2005,37,4:1
15A theory of the intraday variations in volume, variance and trading costs in securities markets显示文摘Foster F D Viswanathan S 1990Review of Financial Studies1990,3,:1
16A theory of type qualifiers 显示文摘Foster J S Ahndrich M F Aiken A 1999PLDI1999,,:1
17Transplanted suprachiasmatic nucleus determines circadian period显示文摘Ralph M R Foster R G Davis F C 1990Science1990,247,4945:1
18Advances in ultrasound biomicroscopy 显示文摘Foster F S Pavlin C J Harasiewicz K A 2000Ultrasound Med Biol2000,26,1:1
19Effect of competitive distance on energy expenditure during simulated competition显示文摘FOSTER C DEKONING J J HETTINGA F 2004Int J Sport Med2004,25,3:1
20显示文摘Sze Tu L Dehghani F Foster N R 2002Powder Technology2002,126,:1
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