人力资本作用机制之探讨

阐明了人力资本作用机制的内涵,探讨了关于人力资本投资的问题,同时分析了关于人力资本作用机制的环境问题。     

论唐诗的人情美

唐诗是中国诗歌的艺术瑰宝。论文拈出唐诗的“人情美”进行审美,从“爽朗豁达别情豪、肝胆相照友情深、感人肺脐亲情真、缠绵悱测恋情浓、心系故园乡情美”五个方面窥探其丰神情韵。     

In situ localization of ACTH receptor-like mRNA in molluscan and human immunocytes

Adrenocorticotropin hormone (ACTH) receptor-like messenger RNA was localized in molluscan hemocytes and human peripheral blood mononuclear cells by in situ hybridization using a digoxigenin-labelled bovine complementary DNA probe. These findings suggest that the ACTH receptor gene has been highly conserved during evolution. Moreover, these data represent further support for a relationship between the immune and neuroendocrine systems in invertebrates, as documented in our previous studies [1]. Received 25 September 1997; received after revision 12 November 1997; accepted 12 November 1997     

古代中西方人性善恶论比较

人性是人的自然属性,自然属性无所谓善恶;善恶是人的社会属性,社会属性呈现出优劣.正是有了社会,人性才有善恶之分.人性善恶论是伦理学最基本问题之一,是中西方文化差异的根源之一.要正视人性弱点,善待人性,给予人性正常自然的发展空间,使人类社会自然和谐地发展.     

Organoselenides as potential immunostimulants and inducers of interferon gamma and other cytokines in human peripheral blood leukocytes

Summary A number of organoselenium compounds have been described as anti-inflammatory, antioxidant, glutathione peroxidase-like agents and inhibitors of prostaglandin synthesis. Here we report that bis [2-(N-phenyl-carboxamido)]phenyl diselenide, 2-phenyl-1,2-benzisoselenazol-3(2H)-one (Ebselen) and related compounds are inducers of interferon gamma (IFN-) and tumor necrosis factor (TNF) in human peripheral blood leukocytes. The IFN and TNF response was rapid, occurring within 20 h, and high-up to 1000 and 2000 units ml^–1-and was clearly related to the dosage and the structure of the compounds. The action of the compounds and phytohemagglutinin was synergistic. The IFN gamma and TNF production was reduced after removing adherent cells. Although the mode of action of the compounds is not known, they appear to interact directly or indirectly with both adherent and non-adherent leukocytes, and stimulate the synthesis of a set of different cytokines including factors controlling the cell proliferation. Therefore, organoselenides may be regarded as the biological response modifiers.     

核电站概率安全分析中人因事件的风险重要性

对核电站概率安全分析模型中人因事件的风险重要性进行了讨论.岭澳核电站风险重要的前50个最小割集中,包含人因事件的有28个,占总堆芯熔化频率的 39.1%.讨论了两个风险重要度:割集重要度(Fussell-Vesely importance,FV)和风险增加当量(risk achievement worth,RAW)得到的North Anna核电站单个电站审查中风险重要人因事件特点.FV重要度前10位人因事件都为事故后人因事件;RAW重要度前10位人因事件中包括发生概率较低的事故前人因事件和发生概率较高的事故后人因事件.提出了可以采取的有效预防和缓解措施.     

论当代技术教育的四种可能进路——基于米切姆技术概念框架的启示

技术与技术教育关系密切。但直至现在,技术仍被视为人们手中的中性工具,或者至多不过是科学发现的应用,技术本身所蕴含的育德、益智、审美等教育价值被遮蔽或丧失。因而对技术内涵的深度揭示将开启技术教育圆融自足的可能进路。基于米切姆对技术作为人工物、技术作为知识、技术作为过程、技术作为意志这一技术概念框架的构建,可以开掘出当代技术教育的四种可能进路。     

和谐语境下工程的伦理规约

对工程进行伦理规约有助于和谐社会的建构。首先,以知行合一为伦理尺度能够实现工程与人本身的和谐,这是人的自我身心内外和谐的现实圭臬;其次,以和而不同为伦理尺度能够实现工程与社会的和谐,这是人与人的和谐关系的现实载体;第三,以天(地)人合一为伦理尺度能够实现工程与自然的和谐,这是人与自然的和谐关系的现实表达。     

周期性机械拉伸对人肺上皮细胞增殖及粘弹性的影响

采用FX-4000基底加载系统对体外培养人肺上皮细胞A549施加周期性拉伸应变,通过流式细胞仪和微管吸吮技术,研究了不同波形的周期性机械拉伸对A549细胞的增殖及粘弹性的影响。结果表明:分别采用正弦波和方波,对A549细胞施加15%拉伸应变、频率30次/min周期性机械拉伸4 h,与对照组相比,正弦波拉伸对A549细胞增殖无显著影响,细胞的粘弹性参数k1和k2值有所减小,μ值无统计学差异。方波拉伸在显著抑制A549细胞增殖同时,细胞的粘弹性参数k1,k2和μ值均明显减小。从力学的角度证实了细胞骨架参与细胞生长的过程。