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The Dynamical Casimir Effect versus Collective Excitations in Atom Ensemble

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Chinese Physics Letters 2011年第6期28卷 118-121页

作者： ZHANG Xue ZHENG Tai-Yu TIAN Tian pan shu-Mei Institute of Theoretical Physics Northeast Normal UniversityChangchun 130024

The Dynamical Casimir effect and collective excitations in atom ensemble are investigated in a non-stationary *** results show that the dynamical Casimir effect leads to the collective excitations of atom ensemble due to absorption of the created *** remarkable feature indicates that the atom ensemble can serve as a detector for the process of photon production in a non-stationary *** by measuring the collective excitations of the atom ensemble,the dynamical Casimir effect can indirectly be verified.

关键词： collective ensemble excitation

Soil Cadmium Regulates Antioxidases in Sorghum

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Agricultural Sciences in China 2010年第10期9卷 1475-1480页

作者： LIU Da-lin ZHANG shu-pan CHEN Zheng QIU Wei-wei College of Animal Science and Technology Yangzhou University Yangzhou 225009 P.R.China

The regulatory mechanism of soil cadmium （Cd） on antioxidases in sorghum was studied using 3 sorghum species viz., sweet sorghum [Sorghum bicolor （L.）] Moench. cv. Hunnigreen, sorghum hybrid sudangrass （Sorghum bicolor × S. sudanense, cv. Everlush） and sudangrass [Sorghum sudanense （Piper） Stapf cv. Xinjiang]. The results showed that low concentrations of Cd^2＋（410 mg kg-0 induced the activities of 4 antioxidases in leaves of the 3 species of sorghum, but high Cd^2＋ concentrations （≥ 50 mg kg-0 significantly reduced the activities of all the four antioxidases. The glutathione （GSH） contents in leaves of the 3 species of sorghum correlated positively with the Cd^2＋ concentrations. The maximum antioxidase activities were observed at the elongation stage of sorghum during the whole growth period.

关键词： sorghum soil cadmium antioxidase

Development of Multiple ELISAs for the Detection of Antibodies against Classical Swine Fever Virus in Pig Sera

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Virologica Sinica 2012年第1期27卷 48-56页

作者： Zhen-hua Yang Ling Li Zi-shu pan State Key Laboratory of Virology College of Life SciencesWuhan UniversityWuhan 430072China

The major immunogenic proteins （Ems, E2 and NS3） of classical swine fever virus （CSFV）（Shimen strain） were expressed in E. coli and purified by affinity chromatography. The recombinant antigens were applied to develop multiple enzyme-linked immunosorbent assays （ELISAs） for the detection of specific antibodies in pig sera. Optimum cut-off values were determined by receiver operating characteristic （ROC） analysis after testing 201 sera of vaccinated pigs and 64 negative sera of unvaccinated piglets. The multiple ELISAs were validated with 265 pig sera yielding high sensitivity and specificity in comparison with the virus neutralization results. The results demonstrated that multiple ELISAs can be a valuable tool for the detection of CSFV infection and serological surveys in CSFV-free countries or for the evaluation of the antibody responses in pigs induced by a live attenuated C-strain vaccination

关键词： Classical swine fever virus Recombinant antigens ELISA

Two new C-glycosylflavones from the leaves of Iris lactea var. chinensis

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Chinese Chemical Letters 2008年第7期19卷 821-824页

作者： Wen Juan Shen Min Jian Qin pan shu Chao Feng Zhang Department of Resources Science of Traditional Chinese Medicines China Pharmaceutical University Nanjing 210038 China Key Laboratory of Modern Traditional Chinese Medicines （Ministry of Education） China Pharmaceutical University Nanjing 210038 China

Two new acylated C-glycosylflavones were isolated from the leaves of Iris lactea var. chinensis, and their structures were elucidated on the basis of extensive NMR experiments and mass spectrometry methods and were assigned as 5-hydroxy-4＇- methoxyflavone-7-O-（β-D-2＇＇＇＇4＇＇＇＇-diacetylrhamnopyranosyl）-6-C-[ O-（α-L-6＇＇＇-acetyl-glucpyranosyl）-1→2-β-D-glucopyrano- side] （irislactin A） and 5-hydroxy-4＇,7-dimethoxyflavone-6-C-[O-（α-L-2＇＇＇,3＇＇＇-diacetylrhanmo-pyranosyl）-1→ 2-β-D-glucopyranoside] （irislactin B）.

关键词： Iris lactea Iridaceae Acylated C-glycosylflavone

Antioxidant and cardioprotective effects of Ilex cornuta on myocardial ischemia injury

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Chinese Journal of Natural Medicines 2017年第2期15卷 94-104页

作者： YUAN Yan pan shu YANG Shi-Lin LIU Yan-Li XU Qiong-Ming Department of Pharmacology College of Pharmaceutical ScienceSoochow UniversitySuzhou 215123China Department of Pharmaceutical Chemistry Guizhou UniversityGuiyang 550025China Department of Pharmacognosy College of Pharmaceutical ScienceSoochow UniversitySuzhou 215123China

Previous studies have indicated that the Ilex genus exhibits antioxidant, neuroprotective, hepatoprotective, and antiinflammatory activities. However, the pharmacologic action and mechanisms of Ilex cornuta against cardiac diseases have not yet been explored. The present study was designed to investigate the antioxidant and cardioprotective effects of Ilex cornuta root with in vitro and in vivo models. The anti-oxidative effects of the extract of Ilex cornuta root(ICR) were measured by 2, 2-diphenyl-1- picrylhydrazyl(DPPH) free-radical scavenging and MTT assays as well as immunoassay. Furthermore, a rat model of myocardial ischemia was established to investigate the cardioprotective effect of ICR in vivo. Eight compounds were isolated and identified from ICR and exhibited DPPH free-radical scavenging activities. They also could increase cell viability and inhibit morphological changes induced by H_2O_2 or Na_2S_2O_4 in H9c2 cardiomyocytes, followed by increasing the SOD activities and decreasing the MDA and ROS levels. In addition, it could suppress the apoptosis of cardiomyocytes. In the rat model of myocardial ischemia, ICR decreased myocardial infarct size and suppressed the activities of LDH and CK. Furthermore, ICR attenuated histopathological alterations of heart tissues and the MDA levels, while increasing SOD activities in serum. In conclusion, these results suggest that ICR has cardioprotective activity and could be developed as a new food supplement for the prevention of ischemic heart disease.

关键词： Ilex cornuta Myocardial ischemia Antioxidant Apoptosis

W±π_t-+ Associated Production at Large Hadron Collider

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Communications in Theoretical Physics 2004年第10期42卷 573-576页

作者： HUANG Jin-shu pan Qun-Na Department of Physics,Henan Nanyang Normal College,Nanyang 473061,China Department of Physics Henan Nanyang Normal College Nanyang 473061 China

In this paper we calculate the production of a charged top pion in association with a W boson at theCERN Large Hadron Collider（LHC）in the context of the topcolor assisted technicolor *** find that the crosssection of pp →b■→W±π_t-+is roughly corresponding to the result of the process pp→b■→W±H-+in the minimalsupersymmetric standard model,and for reasonable ranges of the parameters,the cross section can reach a few *** W±π_t?signal should be clearly visible at LHC unless π_t?is very heavy.

关键词： topcolor assisted technicolor model top pion cross section Large Hadron Collider

TOPK Activation Exerts Protective Effects on Cisplatin-induced Acute Kidney Injury

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Current Medical Science 2022年第4期42卷 742-753页

作者： Hui ZHANG Qing-qing DONG Hua-pan shu Yu-chi TU Qian-qian LIAO Li-jun YAO Department of Nephrology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China

Objective:T-LAK-cell-originated protein kinase(TOPK),a PSD95-Disc large-ZO1(PDZ)binding kinase(PBK),is a novel member of the mitogen-activated protein kinase(MAPK)*** have shown that TOPK plays a critical role in the function of tumor cells,including apoptosis and ***,little is known on the effect of TOPK in cisplatin-induced acute kidney injury(CP-AKI).This study aimed to investigate the role and mechanism of TOPK in ***:Cisplatin was administered to C57BL/6 mice and cultured kidney tubular epithelial cells(TECs)to establish the CP-AKI murine or cellular *** were then stimulated with the specific inhibitor of TOPK OTS514 or transfected with the recombinant-activated plasmid TOPK-T9E to inhibit or activate *** TECs were treated with AKT inhibitorⅧfollowing stimulation with OTS514 or *** blotting and flow cytometry were used to evaluate the cell cycle and apoptosis of ***:The analysis revealed that the TOPK activity was significantly suppressed by cisplatin,both in vivo and in ***,the pharmacological inhibition of TOPK by OTS514,a specific inhibitor of TOPK,exacerbated the cisplatin-induced cell cycle arrest in the G2/M phase and apoptosis of cultured ***,the TOPK activation via the TOPK-T9E plasmid transfection could partially reverse the cell cycle arrest at the G2/M phase and apoptosis of cisplatin-treated *** addition,AKT/protein kinase B(PKB),as a TOPK target protein,was inhibited by cisplatin in cultured *** pharmaceutical inhibition of AKT further aggravated the apoptosis of TECs induced by cisplatin or TOPK *** systematically mediated the apoptosis via the AKT pathway in the CP-AKI cell ***:These results indicate that TOPK activation protects against CP-AKI by ameliorating the G2/M cell cycle arrest and cell apoptosis.

关键词： acute kidney injury cisplatin cell cycle apoptosis T-LAK-cell-originated protein kinase/PSD95-Disc large-ZO1 binding kinase

Rethinking Shanghai Nostalgia： An Ethnographic Inquiry into the Interface between Historical Memory and Place-making Process in a Global Metropolis

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Fudan Journal of the Humanities and Social Sciences 2009年第3期2卷 36-59页

作者： pan Tian-shu

Building explicit links between historical memory and place attachment, this paper investigates the intertwined relationship between globalization, urban revitalization, and neighborhood gentrification in post-reform Shanghai. Based on field research conducted intermittently between 1999 and 2007, it probes the local grounding of the ongoing place-making processes in terms of the ＂lower/higher quarter＂ dichotomy reminiscent of Shanghai＇s semi--colonial past and the apparent contradictions in the politics of planning. By way of mapping ＂Shanghai nostalgia＂ in time and space, attempts are made to locate the cultural symbols in actual sites so that upper quarters and lower quarters as imagined communities come to be attached to imagined places. From the intimate perspectives provided by ethnographic fieldwork, the author explores the significance of locality power embedded in the dichotomy-the ways in which it is exploited, the memories to which it is linked, and more importantly, the explanations it provides for present-day reconfigurations of social space and redistributions of cultural resource in China＇s most cosmopolitan city.

关键词： Shanghai nostalgia politics of memory gentrification urban transformation

Filial Piety Crisis in East Asian Society： Ethnographic Perspectives

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Fudan Journal of the Humanities and Social Sciences 2010年第1期3卷 164-167页

作者： pan Tian-shu

China is ＂graying＂ as a result of fundamental changes in its population structure. Falling fertility and rising longevity are the major forces behind its ongoing demographic transition. It is estimated that by 2040 adults aged 60 and over will make up more than 25 percent of China＇s population. In three decades, Chinese society will be largely oriented towards 397 million elders. Providing social support, housing, and health care for such a huge dependent group of the elderly will be one of the greatest challenges Chinese society has ever faced--and such filial responsibilities, however they may be exercised, will be assumed by the generation of singletons coming of age under China＇s single-child family policy implemented during the post-reform era.

关键词：社会民族东亚人口结构卫生保健独生子女老年人中国