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Time-Resolved Photoluminescence Studies of Indium-Rich IngaN Alloys

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Chinese Physics Letters 2005年第2期22卷 472-474页

作者：陈光德竹有章颜国君苑进社 K.H.Kim J.y.Lin H.X.Jiang DepartmentofAppliedPhysics Xi'anJiaotongUniversityXi'an710049 DepartmentofPhysics KansasStateUniversityManhattanKansas66506-2601USA DepartmentofAppliedPhysics Xi'anJiaotongUniversityXi'an710049

Time-resolved photoluminescence (PL) spectroscopy has be used to investigate indium-rich IngaN alloys grown on sapphire substrates by metal organic chemical vapor deposition. Photoluminescence measurement indicates two dominant emission lines originating from phase-separated high- and low-indium-content regions. Temperature and excitation intensity dependence of the two main emission lines in these IngaN alloys have been measured. Temperature and energy dependence of PL decay lifetime show clearly different decay behaviour for the two main lines. Our results show that photo-excited carriers are deeply localized in the high indium regions while photo-excited carriers can be transferred within the low-indium-content regions as well as to high-content regions.

关键词：光致发光铟镓氮合金有机化学蒸汽沉降法光激发子

Lack of support for Rensch＇s rule in an intraspecific test using red flour beetle （Tribo/ium castaneum） populations

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Insect Science 2017年第1期24卷 133-140页

作者： Oliver y. Martin Lukasz Michalczyk Anna L. Millard Brent C. Emerson Matthew J. G. Gage School of Biological Sciences University of East Anglia Norwich Research Park Norwich NR4 7T J United Kingdom ETH Zurich Experimental Ecology Institute of Integrative Biology D-USYS Universitatsstrasse 16 CH-8092 Zurich Switzerland Department of Entomology Institute of Zoology Jagiellonian University Gronostajowa 9 30-387 Krakow Poland Island Ecology and Evolution Research Group (IPNA-CSIC) CIAstrofisico Francisco Sanchez 3 38206 La Laguna Tenerife Canary Islands Spain

Rensch＇s rule proposes a universal allometric scaling phenomenon across species where sexual size dimorphism （SSD） has evolved： in taxa with male-biased dimorphism, degree of SSD should increase with overall body size, and in taxa with female-biased dimorphism, degree of SSD should decrease with increasing average body size. Rensch＇s rule appears to hold widely across taxa where SSD is male-biased, but not consistently when SSD is female-biased. Furthermore, studies addressing this question within species are rare, so it remains unclear whether this rule applies at the intraspecific level. We assess body size and SSD within Tribolium castaneum （Herbst）, a species where females are larger than males, using 21 populations derived from separate locations across the world, and maintained in isolated laboratory culture for at least 20 years. Body size, and hence SSD patterns, are highly susceptible to variations in temperature, diet quality and other environmental factors. Crucially, here we nullify interference of such confounds as all populations were maintained under identical conditions （similar densities, standard diet and exposed to identical temperature, relative humidity and photoperiod）. We measured thirty beetles of each sex for all populations, and found body size variation across populations, and （as expected） female-biased SSD in all populations. We test whether Rensch＇s rule holds for our populations, but find isometry, i.e. no allometry for SSD. Our results thus show that Rensch＇s rule does not hold across populations within this species. Our intraspecific test matches previous interspecific studies showing that Rensch＇s rule fails in species with female-biased SSD.

关键词： allometry body size Coleoptera sexual selection sexual size dimorphism Tenebrionidae

INFLUENCE OF THE NONMAGNETIC METAL SPACER ON THE MAGNETIC PROPERTIES AND MICROSTRUCTURE OF THE MULTILAyER FILMS

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Acta Metallurgica Sinica(English Letters) 2006年第4期19卷 235-243页

作者： M.H. Li G.H. yu F.W. Zhu H.W. Jiang W.y. Lai College of Mechanical Engineering South China University of Technology Guangzhou 510640 China Department of Materials Physics University of Science and Technology Beijing Beijing 100083 China Department of Physics Capital Normal University Beijing 100037 China Institute of Physics Chinese Academy of Sciences Beijing 100080 China

Ta / NiFe/Bi （ Ag, Cu ）/FeMn/Ta and Ta / NiFe1/FeMn / Bi （ Ag, Cu ）/NiFen/Ta films were prepared by magnetic sputtering. The texture and the dependences of the exchange-coupling field on the thickness of Bi, Ag, and Cu in Ta/NiFe/Bi（Ag, Cu） /FeMn/Ta and Ta/NiFe/FeMn/Bi（Ag, Cu）/NiFe/Ta films were studied. XPS results indicate that the Bi atoms migrated into the FeMn layer during the deposition process and a FeMnBi alloy was probably formed or the Bi atoms existed as an impurity in the FeMn layer in Ta/NiFe/Bi（Ag, Cu ）/FeMn/Ta. Otherwise, in Ta/NiFe/FeMn/Bi （Ag, Cu）/NiFe/Ta films, Bi, Ag, and Cu atoms do not remain entirely at the interface of the FeMn/ NiFeⅡfilm, but at least partly segregate to the surface of the NiFe film.

关键词： NiFe/FeMn nonmagnetic spacer exchange coupling XPS (X-ray photoelectron spectroscopy)

A Spirit Philosophy Linking to Buddhism and Theology

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Journal of Philosophy Study 2022年第8期12卷 419-424页

作者： Fred y.ye European Academy of Sciences and Arts SalzburgAustria

Spiritual ontology,Buddhist epistemology,and theological axiology construct a spirit philosophy,where spiritual ontology sets up an ontological foundation,Buddhist epistemology provides a practical method,and theological axiology contributes a living *** spirit philosophy covers spiritual ontology,Buddhist epistemology,and theological axiology,spirit philosophy links to Buddhism and theology and then introduces a popular philosophy toward the *** is a mellow philosophical system.

关键词： spiritual ontology Buddhist epistemology theological axiology spirit morality ethics

CAS Members Offer Advice on New Pharmaceuticals

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Bulletin of the Chinese Academy of Sciences 2000年第2期14卷 67-68页

作者： y.G

A group of CAS members andexperts noted for their pharmaceu-tical knowledge and expertuse tookpart in an exhaustive consultingand lecture program in Hong KongSAR, Shenzhen and Guangzhoufrom Apri 5 to 13, focusing on n... 详细信息

关键词： CAS Members Offer Advice on New Pharmaceuticals WTO SAR

Molecular cloning and characterization of the endothelin 3 gene in black bone sheep

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Journal of Animal Science and Biotechnology 2018年第4期9卷 847-857页

作者： Hesham y.A.Darwish yuanyuan Zhang Kai Cui Zu y.ng Deping Han Xianggui Dong Huaming Mao Weidong Deng Xuemei Deng National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics Breeding and Reproduction of the Ministry of AgricultureChina Agricultural University Animal Production Research Institute Agricultural Research Center Ministry of Agriculture and Land Reclamation College of Veterinary Medicine China Agricultural University College of Animal Science and Technology Yunnan Agricultural University

Background: Black bone sheep was first discovered in yunnan province of China in 1970, with unique black pigmentation on the body and internal organs. Endothelin 3(EDN3) has been known as a key gene causing hyperpigmentation in black bone chicken, the Silky ***: In this study, EDN3 was employed as a candidate gene for regulating black color pigmentation. First,EDN3 was cloned from sheep to obtain the full-length cDNA by using the rapid amplification of cDNA ends(RACE).Genomic EDN3 was screened and a total of thirty predicted single nucleotide polymorphisms(SNPs) were genotyped for allele and genotype frequency analysis in a case-control study involving two black bone sheep populations. Genomic copy number analysis of EDN3 in sheep was conducted to measure the variation in copy number. EDN3 expression levels were observed among the groups in adult liver, lymph node, and kidney tissues, as well as embryo kidney samples. Also, among the tissues of black bone and non-black bone ***: The size of the full-length cDNA was 1,578 bp, which included 426 bp of 5′-untranslated region(5′-UTR),an open reading frame(ORF) of 639 bp encoding a protein of 212 amino acids, and a 3′-UTR of 513 bp. Genotype and allele frequencies of all the discovered SNPs were found insignificantly different in black bone and non-black bone sheep(P > 0.05). Genomic copy number analysis of EDN3 in sheep revealed no significant difference between the two sheep groups. No significant variations were found in the adult liver and kidney embryo samples. However,the expression in lymph node and kidney tissue was significantly higher in black bone sheep than that in non-black bone sheep(P ng the tissues of nonblack bone ***: The findings of the present study indicate that unlike in Silky chickens, EDN3 is not responsible for hyperpigmentation but may play a key functional role in immune and excretory

关键词： Black pigmentation Expression level Sequence analysis SNP

Oxidative stress and lipid peroxidation products:effect of pinealectomy or exogenous melatonin injections on biomarkers of tissue damage during acute pancreatitis

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Hepatobiliary & Pancreatic Diseases International 2010年第1期9卷 78-82页

作者： Cavit l Kahraman Dinler O■uz Hasdemir Oktay Büyüka■ik Güler Bu■dayci Department of General Surgery Abant Izzet Baysal University Medical School Department of Biochemistry Abant Izzet Baysal University Medical School

BACKGROUND:Melatonin (N-acetyl-5-methoxytripta-mine) is a free radical scavenger and a strong antioxidant,secreted by the pineal *** this study,we evaluated the effects of decreasing and increasing serum melatonin levels on malonyldialdehyde (MDA),superoxide dismutase (SOD),and reduced glutathione (GSH) levels in pancreatic tissue from rats with experimental acute ***:Experimental acute pancreatitis was induced in three groups of Wistar albino rats (10 animals per group) by pancreatic ductal *** first group had only acute pancreatitis and served as the *** pinealectomy was added to acute pancreatitis in the second group,removing the source of endogenous melatonin (low melatonin levels group).The third group was given 0.1 ml daily intraperitoneal injections of 20 mg/ml melatonin solution for one week (high melatonin levels group).The effects of melatonin levels were evaluated by comparison of the levels of MDA,SOD,and GS in pancreatic ***:We found that intraperitoneal melatonin injections decreased the levels of MDA and increased the levels of SOD and GSH in pancreatic ***:Exogenous melatonin has a preventive effect on lipid peroxidation and oxidative damage in acute pancreatitis.

关键词： pineal gland acute pancreatitis melatonin oxidative damage

Protection of retinal ganglion cells against optic nerve injury by induction of ischemic preconditioning

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International Journal of Ophthalmology(English edition) 2017年第6期10卷 854-861页

作者： Xia Liu Jiu-Ping Liang Ou Sha Song-Juan Wang Heng-Guo Li Eric y.P.Cho Medical Imaging Center the First Affiliated Clinical Hospital of Jinan University Guangzhou 510632 Guangdong Province China School of Biomedical Sciences the Chinese University of Hong Kong Shatin Hong Kong 999077 China Department of Preclinical Medicine School of Medicine Shenzhen University Shenzhen 518060 Guangdong Province China Shiyan People＇s Hospital of Baoan District Shenzhen 518108 Guangdong Province China

AIM： To explore if ischemic preconditioning （IPC） can enhance the survival of retinal ganglion cells （RGCs） after optic nerve axotomy. METHODS： Twenty-four hours prior to retinal ischemia 60min or axotomy, IPC was applied for ten minutes in groups of （n=72） animals. The survival of RGCs, the cellular expression of heat shock protein 27 （HSP27） and heat shock protein 70 （HSP70） and the numbers of retinal microglia in the different groups were quantified at 7 and 14d post-injury. The cellular expression of HSP27 and HSP70 and changes in the numbers of retinal microglia were quantified to detect the possible mechanism of the protection of the IPC. RESULTS： Ten minutes of IPC promoted RGC survival in both the optic nerve injury （IPC-ONT） and the retinal ischemia 60min （IPC-IR60） groups, examined at 7d and 14d post-injury. Microglial proliferation showed little correlation with the extent of benefit effects of IPC on the rescue of RGCs. The number of HSP27-positive RGCs was significantly higher in the IPC-ONT group than in the sham IPC-ONT group, although the percentage of HSP27-positive RGCs did not significantly differ between groups. For the IPC-IR60 group, neither the number nor the percentage ofthe HSP27-positive RGCs differed significantly between the IPC and the sham-operated groups. The number of HSP70-positive RGCs was significantly higher for both the IPC-ONT and the IPC-IR60 experimental groups, but the percentages did not differ. CONCLUSION： The induction of IPC enhances the survival of RGCs against both axotomy and retinal ischemia.

关键词： ischemic preconditioning retinal ganglioncells axotomy retinal ischemia/reperfusion heat shockprotein 27 and 70

Opportunities and challenges to handle the TPP

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China Textile 2016年第5期 16-17页

作者： y.c.

The investment delegation of dyeing and printing entrepreneurs organized by Textile In- dustry Branch of CCPIT and CPDA （China Print- ing and Dyeing Association ） in Vietnam has fin- ished investigation on February 23-26, 2016 suc- cessfully, leaded by Vice President Sun Ruizheof CNTAC （China National Textile Association Council）, accompanied by President Chen Zhihua of CPDA, Vice President Lin yunfeng of Textile Industry Branch of CCPIT,

关键词： TPP 纺织行业印染企业行业组织中国代表团协会理事会