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消费经济 2005年第6期21卷 68-71页

作者：周觉北京信息科技大学经贸系北京100085

追求劳动效率推动了资本主义社会由追求绝对剩余价值向相对剩余价值转变,马克思指出这种转变给劳动者所带来的后果是劳动强度的增加与劳动的异化。劳动的异化会导致休闲的异化,表现为休闲的“物化”与“工作化”;劳动生产效率提高要求... 详细信息

追求劳动效率推动了资本主义社会由追求绝对剩余价值向相对剩余价值转变,马克思指出这种转变给劳动者所带来的后果是劳动强度的增加与劳动的异化。劳动的异化会导致休闲的异化,表现为休闲的“物化”与“工作化”;劳动生产效率提高要求休闲效率也相应提高,追求休闲效率在加剧时间稀缺性的同时导致休闲异化,表现为自由时间之不可能。

关键词：效率休闲异化

基于Cuo-Zno的低温固体氧化物燃料电池性能

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沈阳师范大学学报（自然科学版） 2024年第1期42卷 88-92页

作者：田宁谭雯竹于吉罗寅先黄永涛王诚源郑若宁屈艳梅沈阳师范大学物理科学与技术学院沈阳110034

制备具有优异离子导电性和低温高化学性能的电解质是固体氧化物燃料电池实际应用的重要发展方向.基于p型Cuo和n型Zno构建p-n半导体异质结材料,并将其作为电解质应用于低温固体氧化物燃料电池.制备了不同质量比例Cuo-Zno的电解质材料,并... 详细信息

制备具有优异离子导电性和低温高化学性能的电解质是固体氧化物燃料电池实际应用的重要发展方向.基于p型Cuo和n型Zno构建p-n半导体异质结材料,并将其作为电解质应用于低温固体氧化物燃料电池.制备了不同质量比例Cuo-Zno的电解质材料,并组装Ni_(0.8) Co_(0.15)Al_(0.05)Lio_(2-δ)/Cuo-Zno/Ni_(0.8)Co_(0.15)Al_(0.05)Lio_(2-δ)单电池进行性能测试.结果表明,基于纯Zno电解质材料的燃料电池性能最低(在550℃开路电压为为0.8 V,最大功率密度为187.5mW/cm^(2)),复合质量比例为1∶9的燃料电池性能最为优异(在550℃开路电压为1.065V,瞬时最大功率密度为555mW/cm^(2)).通过对Cuo-Zno异质结复合材料的电化学阻抗分析,发现构建的p-n半导体异质结为离子传输提供了通道,提高了离子电导率.研究表明p-n型电解质复合材料在低温固体氧化物燃料电池的应用中具有很大潜力.

关键词：低温固体氧化物燃料电池电解质材料半导体p-n型

A QUANTUM CHEMICAL STUDY oN ENZYME—CATAL YZDE REACTIoNS Hydro

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催化学报 1996年第5期17卷 472-475页

作者： Cui Ruihai Fan zh DepartmentofChemistry HarbinTeacherscollegeHaerbi DepartmentofChemistry HarbinT

Nuclear Factor-κB Signaling Mediates Antimony-induced Astrocyte Activation

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Biomedical and Environmental Sciences 2021年第1期34卷 29-39页

作者： zhANG Tao zhENG Yu Dan JIAo Man zh Ye XU Shen Ya zhU Piao Yu zh.o Xin Yuan WU Qi Yun Department of occupational Medicine and Environmental Toxicology School of Public HealthNantong UniversityNantong 226019JiangsuChina Fudan University Taizhou Institute of Health Sciences Taizhou 225300JiangsuChina

objective Antimony(Sb)has recently been identified as a novel nerve poison,although the cellular and molecular mechanisms underlying its neurotoxicity remain *** study aimed to assess the effects of the nuclear factor kappa B(NF-κB)signaling pathway on antimony-induced astrocyte *** Protein expression levels were detected by Western ***,cytoplasmic and nuclear fractions separation were used to assess the distribution of *** expression of protein in brain tissue sections was detected by *** levels of mRNAs were detected by Quantitative real-time polymerase chain reaction(qRT-PCR)and reverse transcriptionpolymerase chain reaction(RT-PCR).Results Antimony exposure triggered astrocyte proliferation and increased the expression of two critical protein markers of reactive astrogliosis,inducible nitric oxide synthase(iNoS)and glial fibrillary acidic protein(GFAP),indicating that antimony induced astrocyte activation in vivo and in *** exposure consistently upregulated the expression of inflammatory ***,it induced the NF-κB signaling,indicated by increased p65 phosphorylation and translocation to the ***-κB inhibition effectively attenuated antimony-induced astrocyte ***,antimony phosphorylated TGF-β-activated kinase 1(TAK1),while TAK1 inhibition alleviated antimonyinduced p65 phosphorylation and subsequent astrocyte *** Antimony activated astrocytes by activating the NF-κB signaling pathway.

关键词： Antimony Astrocyte activation Neurotoxicity NF-κB TAK1

A Novel Method for Synthesis of Tetrahydropyrane and Piperidine Derivatives

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Agricultural Science & Technology 2013年第2期14卷 308-310页

作者： S.Kalugin zh.Abilov K.Erzhanov 哈萨克国立大学化学系哈萨克斯坦阿拉木图480078

Piperidine-4-ones and tetrahydropyrane-4-ones are important precursors for the synthesis of functionally substituted piperidines and tetrahydropyranes. In this study, the condensation of hexa-2, 4-diene and 2-methyl-penta-2, 4-diene with formaldehyde （reaction of oxymethylation） was investigated. The functionally substituted derivatives of piperidine and tetrahydropyrane were synthesized. The comparison of oxymethylation of dienes and 1-alkenes was showed, which indicates that the highest yield of tetrahydropyrane derivatives was achieved with 1-alkenes. This study provided theoretical basis for the synthesis of piperidine and tetrahydropyrane derivatives.

关键词： oxymethylation Dienes Tetrahydropyrane Piperidine

Formation and development of the quality management system

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Formation and development of the quality management system

Investigation of the Surface Properties of Vinyl Ethers – Sodium 2-Acrylamido-2-Methylpropanesulfonate Copolymers

作者： Z.Salzhanova zh.Makisheva Karaganda University of Economics

one of the founders of the theory of quality E. Deming analyzing the reasons of bad quality divides them into two groups those are:special reasons and reasons,connected with the system(system-defined). At the same time,by his estimation,percent of the first forms only 6%,while system-defined reasons form 94%[1,p.325].The other outstanding author in the

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Advances in Materials Physics and Chemistry 2012年第4期2卷 177-180页

作者： S. Kh. Khussain E. M. Shaikhutdinov N. zh. Seitkaliyeva A. zh. zhenisova Department of applied chemistry Kazakh National Technical University named after Kanysh Satpaev Almaty Kazakhstan

The surface properties of water soluble copolymers vinyl ethers of monoethanolamine and ethylene glycol with sodium 2-acrylamido-2-methyl-propanesulfonate were investigated by studying adsorption at the aqueous solution – air interface. It is found that copolymers have considerably higher surface activity in comparison with poly- sodium 2-acrylamido-2-methyl-propanesulfonate.

关键词： Surface Active Copolymers Adsorption Interface Standard Free Energy of Adsorption

受损感觉神经元来源的CSF1诱导小胶质细胞增殖和DAP12依赖性疼痛

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中国疼痛医学杂志 2016年第10期22卷 734-736页

作者： Guan zh 陆颖

研究表明小胶质细胞参与了神经病理性疼痛,但是受损的感觉神经元如何调节小胶质细胞仍不清楚。本研究发现:外周神经损伤诱导受损的感觉神经元表达集落刺激因子1(colony-stimulating factor1,CSF1)。CSF1被运输至脊髓,作用于小胶质细胞上... 详细信息

研究表明小胶质细胞参与了神经病理性疼痛,但是受损的感觉神经元如何调节小胶质细胞仍不清楚。本研究发现:外周神经损伤诱导受损的感觉神经元表达集落刺激因子1(colony-stimulating factor1,CSF1)。CSF1被运输至脊髓,作用于小胶质细胞上的CSF1受体(CSF1 receptor,CSF1R)。感觉神经元中Csf1缺失完全阻断了神经损伤诱导的机械性痛觉过敏,并抑制了小胶质细胞活化和增殖。相反,鞘内注射CSF1诱导了机械性痛觉过敏的产生和小胶质细胞增殖。神经损伤也增加了运动神经元中CSF1表达,促进腹角小胶质细胞活化和增殖。CSF1R的下游是小胶质细胞膜接头蛋白12(membrane adaptor protein12,DAP12)。DAP12是神经损伤或鞘内注射CSF1诱导小胶质细胞内疼痛相关基因表达上调和随后的疼痛产生的关键分子,但小胶质细胞增殖并不依赖DAP12。因此,CSF1和DAP12都可能成为药物治疗神经病理性疼痛的潜在靶点。

关键词：感觉神经元 CSF1 DAP12 小胶质细胞细胞增殖神经病理性疼痛痛觉过敏神经损伤损伤诱导脊髓背角

Robust closed-form estimators for the integer-valued GARCH(1,1) model

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Robust closed-form estimators for the integer-valued GARCH(1...