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971.
This paper seeks to explore a philosophical ground for the formulation and practice of an Oriental systems methodology, the wuli–shili–renli approach (WSR). Drawing insights from ancient Chinese thought, WSR contends that, in sociotechnical systems design/management, we should investigate and follow wuli, shili, and renli, which constitute a differentiable, dynamic whole. Wuli, shili, and renli condition and determine the fate of our projects, meaning different methods are needed to deal with each differentiable aspect. It also points out that, to deal with wuli, shili, and renli properly, we need to engage in encounters with the "dark side" of Confucianism and with the contemporary tendency of scientism. 相似文献
972.
Molecular portraits of human breast tumours 总被引:181,自引:0,他引:181
973.
Two yeast forkhead genes regulate the cell cycle and pseudohyphal growth 总被引:36,自引:0,他引:36
974.
Urinary bladder hyporeflexia and reduced pain-related behaviour in P2X3-deficient mice 总被引:48,自引:0,他引:48
Cockayne DA Hamilton SG Zhu QM Dunn PM Zhong Y Novakovic S Malmberg AB Cain G Berson A Kassotakis L Hedley L Lachnit WG Burnstock G McMahon SB Ford AP 《Nature》2000,407(6807):1011-1015
Extracellular ATP is implicated in numerous sensory processes ranging from the response to pain to the regulation of motility in visceral organs. The ATP receptor P2X3 is selectively expressed on small diameter sensory neurons, supporting this hypothesis. Here we show that mice deficient in P2X3 lose the rapidly desensitizing ATP-induced currents in dorsal root ganglion neurons. P2X3 deficiency also causes a reduction in the sustained ATP-induced currents in nodose ganglion neurons. P2X3-null mice have reduced pain-related behaviour in response to injection of ATP and formalin. Significantly, P2X3-null mice exhibit a marked urinary bladder hyporeflexia, characterized by decreased voiding frequency and increased bladder capacity, but normal bladder pressures. Immunohistochemical studies localize P2X3 to nerve fibres innervating the urinary bladder of wild-type mice, and show that loss of P2X3 does not alter sensory neuron innervation density. Thus, P2X3 is critical for peripheral pain responses and afferent pathways controlling urinary bladder volume reflexes. Antagonists to P2X3 may therefore have therapeutic potential in the treatment of disorders of urine storage and voiding such as overactive bladder. 相似文献
975.
采用气相色谱-质谱联用技术,首次对木果楝叶子和果实挥发油进行了成分分析,从木果楝叶子和果实分别鉴定出了33和36种化合物,分别占挥发油的99.11%和97.63%.两个部位中挥发油化学组成各有异同,但其主要成分均是倍半萜类化合物b-桉叶烯和γ-桉叶烯.本研究结果可为木果楝的综合开发利用提供理论依据. 相似文献
976.
分析东亚民族主义产生的背景与东亚民族主义史学观的历史根源,论述民族主义史学观支配下东亚数学国别史编纂的研究取向及其影响。认为,这些国别史都是从民族本位出发,强调本国数学的独立性与主体性,重视本民族数学的独特性与数学成就上的差别,而轻忽东亚数学的整体性与同质性。以西方数学作为参照标准,较强的辉格史倾向在为民族科学文化先进性进行辩护方面发挥重要作用,重视数学史内史研究而忽视外史研究的研究范式也为其所需要。欲消除民族主义数学史观的消极影响,就应该树立“东亚数学一体化”的观点,超越民族,从儒家文化、汉字文化的整体视角来审视东亚数学,并且对东亚数学持连续发展的观点。只有把中国、日本与韩国(还包括越南)数学作为一个整体考察,才有可能全面认识东亚数学思想、数学精神与数学知识体系。 相似文献
977.
To recognize circular objects rapidly in satellite remote sensing imagery, an approach using their geometry properties is presented. The original image is segmented to be a binary one by one dimension maximum entropy threshold algorithm and the binary image is labeled with an algorithm based on recursion technique. Then, shape parameters of all labeled regions are calculated and those regions with shape parameters satisfying certain conditions are recognized as circular objects. The algorithm is described in detail, and comparison experiments with the randomized Hough transformation (RHT) are also provided. The experimental results on synthetic images and real images show that the proposed method has the merits of fast recognition rate, high recognition efficiency and the ability of anti-noise and anti-jamming. In addition, the method performs well when some circular objects are little deformed and partly misshapen. 相似文献
978.
A 4 Mb embedded silicon-oxide-nitride-oxide-silicon (SONOS) memory was developed with a 0.18 μm CMOS logic compatible technology. A reverse programming array architecture was proposed to reduce the chip area, enhance the operating window, and increase the read speed. The charge distribution was analyzed to optimize the programming and erase conditions considering both the operating speed and the endurance performance. The final test chip has a good endurance of 105 cycles and a data retention time of at least 10 years. 相似文献
979.
证明了Banach空间值独立随机变量序列的Hàjek-Rènyi型不等式,并利用该不等式证明了Banach空间值独立随机变量序列的强大数定律,所得结果刻画了Banach空间的p型性质. 相似文献
980.
在分析比较各种更新页面技术的基础上,利用Ajax的核心技术XMLHTTP组件,设计并实现了多媒体会议系统中无刷新页面的功能,它具有Web页面与后台数据库信息同步更新、响应速度快的特点.系统测试表明:此无刷新技术比其他技术具有更多的优越性. 相似文献