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| 1 | Enhanced orange emission by doping CeB_6 in CaAlSiN_3:Ce^(3+) phosphor for application in white LEDs显示文摘A series of CeB6-doped and CeO_2-doped Ca_(1-x)SiAlN_3:xCe3+(denoted as CASN:Ce3+@CeB6 and CASN:Ce3+@CeO_2, respectively) were synthesized by alloy-nitridation method under high-purity nitrogen atmosphere. The morphologies, crystal phases, and luminescence properties were investigated in detail.With an increase in the concentration of CeB_6, the unit cell volume of CASN:Ce3+@CeB_6 slightly increases due to the substitution between ions, which leads to a change of micro structure around Ce3+. CASN:Ce3+@CeB6 efficiently emits yellow-orange light with a maximum emission intensity at around 550 nm for the content x of 0.01(being in comparable situation, CASN:Ce3+@CeO_2 is x = 0.04) when excited at460 nm. Compared with CASN:Ce3+@CeO_2, the red emission component of Ce3+ in CASN:Ce3+@CeB6 is much stronger. This is ascribed to energy transfer of intra-Ce3+(within one Ce3+ ion) and inter-Ce3+(between Ce3+ and Ce3+ ions). In addition, the replacements of N3-(0.132 nm for CN = 4) and O^(2-)(0.124 nm for CN = 4) by B^(2-)(0.140 nm for CN = 4), which can lead to a marked expansion of the host lattice and a decrease of the oxidation of samples, are also responsible for the increase of red emission component. Furthermore, CASN:Ce3+@CeB_6 phosphor has an excellent thermal stability because of the partial substitution of Ce-O(Ce-N) bonds by more covalent Ce-B. As a result, the outstanding luminescent properties of CASN:Ce3+@CeB6 phosphor make it practical to use in the single phosphor-coated high-color-rendering power white LED. | Wenjie Wu Kefu Chao Wenquan Liu Lesi Wei Dahai Hu Taiyang Wang O. Tegus | 2018 | Journal of Rare Earths2018，36，12： | 6 |
| 2 | Alteration of P2X3 expression in dorsal root ganglia after sciatic nerve ligation显示文摘BACKGROUND:The expressions of P2X3 receptor in dorsal root ganglia(DRG)after different peripheral nerve injuries are diverse.It indicates the different roles of P2X3 in different models-caused neuropathologic pains.OBJECTIVE:To observe the expressions of P2X3 in corresponding DRG after sciatic nerve ligation in rats.DESIGN:Controlled observation experiment.SETTING:Department of Morphology,Hunan Traditional Chinese Medical College;Department of Human Anatomy and Neurobiology,Xiangya Medical College,Central South University.MATERIALS:Thirty-five healthy adult SD rats of clean grade an d either gender,weighing(200±20)g,were involved.According to the random digits table,the involved rats were randomized into 3 groups:normal group(n =5),sham-operated group(n =5)and experimental group(n =25).The experimental group were subdivided into 3,7,14,21,28 days groups according to different surviving time after operation,5 rats at each time point.Polyclonal rabbit anti-P2X3 antibody(ABCAM company);biotinylated goat anti-rabbit IgG(Zhongshanjingqiao Biotechnical Co.,Ltd.,Beijing);Motic fluorescence microscope(Motic,Germany).METHODS:The experiments were carried out in the Department of Human Anatomy and Neurobiology,Xiangya Medical College,Central South University from June to December 2006.① Rats of experimental group were created into models by ligation of right sciatic nerve according to the method of Seltzer et al.Left sciatic nerve was used as self-control.As for rats in the sham-operated group,ligation of sciatic nerve was omitted,but other procedures were the same as those in the experimental group.Rats of normal group were untouched.② Rats of the normal group and sham-operated group survived for 14 days separately,and those of experimental group survived for corresponding time.After being deeply anesthetized by intraperitoneal injection of over-dose sodium pentobarbital,the rats of experimental group were transcardially perfused.L4-6 corresponding DRG connected to sciatic nerve were taken for preparing transverse sections serially.③P2X3 expression in L4-6 DRG was detected by immunohistochemistry,immunofluorescence and image analysis techniques.MAIN OUTCOME MEASURES:P2X3 expression in L4-6 DRG of rats in each group.RESULTS:Thirty-five SD rats were involved in the final analysis.① P2X3 expression in DRG:In normal DRG of rats,there were abundant P2X3 immuno-positive small-and medium-sized primary sensory neurons,especially the small ones,which mostly received the input from C fibers.There were only a few large neurons expressing P2X3.The immuno-positive products mostly were located in the cytoplasm and processes.The expression of P2X3 had a slight but significant decrease in ipsilateral L4-6 DRG 3 days after sciatic nerve ligation,and a decreasing tendency was observed with the elongation of time.At 28 days,the expression had not returned to base line,and still maintained at a low level.② P2X3 immuno-positive gray scale in DRG:P2X3 immuno-positive gray scale in ipsilateral side L4-6 DRG was 117.74±2.38,129.12± 4.86,133.56±3.79,148.75±6.90 and 150.49±5.15,respectively at 3,7,14,21 and 28 days after sciatic nerve ligation,which was significantly higher than that in the normal group and sham-operated group(105.11±3.52,104.22±5.41,F =78.861,P < 0.05),also significantly higher than that in the contralateral side(105.53±5.85,108.54±3.70,104.07±4.16,106.55±2.02,106.29±5.19,t =3.48-13.95,P < 0.05);There were no significant differences when comparing sham-operated group or contralateral side at each time point with normal group(P > 0.05)CONCLUSION:P2X3 is significantly down regulated in L4-6 DRG after sciatic nerve ligation.It may exert certain effects in neuropathic pain. | Guoxing Zhou Lesi Xie Qiben Wang Qingping Yu Xiaofu Liu Qiumei Liu Wei Peng Zhicheng Zeng | 2007 | Neural Regeneration Research2007，2，4： | 3 |
| 3 | Aflatoxin Exposure and Viral Hepatitis in the Etiology of Liver Cirrhosis in The Gambia, West Africa显示文摘 | Kuniholm Mark H Lesi Olufunmilayo A Mendy Maimuna Akano Aliu O Sam Omar Hall Andrew J Whittle Hilton Bah Ebrima Goedert James J Hainaut Pierre Kirk Gregory D | 2008 | Environmental Health Perspectives2008，，11： | 2 |
| 4 | Funclionalizatio:2, eompatibilization and properties of polypropylene composites with hemp fibres 显示文摘 | Praeella M Chionna D Angui]lesi I | 2006 | Composites Science and Technology2006，60，13： | 1 |
| 5 | TP53 R249S mutation, genetic variations in HBX and risk of hepatocellular carcinoma in The Gambia显示文摘 | Doriane A. Gouas Stéphanie Villar Sandra Ortiz-Cuaran Pénélope Legros Gilles Ferro Gregory D. Kirk Olufunmilayo A. Lesi Maimuna Mendy Ebrima Bah Marlin D. Friesen John Groopman Isabelle Chemin Pierre Hainaut | 2012 | Carcinogenesis2012，，6： | 1 |
| 6 | Implementing core IS Capabilities: Feeny - Willcocks IT Governance and Management Framework Revisited显示文摘 | Lesie Willcocks David Feeny Nancy Olson | 2006 | European Management Journal2006，24，1： | 1 |
| 7 | Prevalence, profile and predictorsof malnutrition in children with con- genital heart defects: a case-controlobservational study 显示文摘 | Okoromah CA Ekure EN Lesi FE | 2011 | Arch Dis Child2011，，96： | 1 |
| 8 | Prevalence, profile and predictors of malnutrition in children with congenital heart de- fects: a case-control observational study 显示文摘 | Okoromah CA Ekure EN Lesi FE | 2011 | Arch Dis Child2011，96，4： | 1 |
| 9 | Use in routine clinical practice of two commercial blood tests for diagnosis of infection with Mycobacteri- tun tuberculosis:a prospective study 显示文摘 | Fenam G Lesi M D'Amico R | 2006 | Lancet2006，367，： | 1 |
| 10 | Chicken muscle homogenate gelation properties: effect of pH and muscle fiber type显示文摘 | Tomasz Lesiów Youling L Xiong | 2003 | Meat Science2003，，4： | 1 |
| 11 | Regional versus general anaesthesia for caesarean section 显示文摘 | AFOLABI B B LESI F E MERAH N A | 2006 | Cochrane Database Syst Rev2006，，00： | 1 |
| 12 | Procalcitonin and macrophage inflammatory protein-1 beta (MIP-113) in serum and peritoneal fluid of patients with decompensated cirrhosis and spontaneous bacterial peritonitis显示文摘 | Lesi fi ska M Hartleb M Gutkowski K | 2014 | Adv Med Sci2014，59，1： | 1 |
| 13 | Evidence-based medicine curriculum: impact on medical students显示文摘 | OKOROMAH C A ADENUGA A O LESI F E | 2006 | Med Educ2006，40，5： | 1 |
| 14 | Radioiodine treatment outcomes in thyroid glands previously irradiated for grave's hyperthyroidism显示文摘 | Lesie WD Peterely AE Dupont JO | 1998 | J Nucl Med1998，39，4： | 1 |
| 15 | 2001 SCCM/ESICM/ACCP/ATS/SIS/international sepsis definitions conference显示文摘 | Lesy MM Fink MP Marshall JC | 2003 | Crit Care Med2003，31，4： | 1 |
| 16 | TP53 R249S mutation, genetic variations in HBX and risk of hepatocellular carcinoma in The Gambia显示文摘 | Doriane A. Gouas Stéphanie Villar Sandra Ortiz-Cuaran Pénélope Legros Gilles Ferro Gregory D. Kirk Olufunmilayo A. Lesi Maimuna Mendy Ebrima Bah Marlin D. Friesen John Groopman Isabelle Chemin Pierre Hainaut | 2012 | Carcinogenesis2012，，6： | 1 |
| 17 | Ser-249TP53 mutation in tumour and plasma DNA of hepatocellular carcinoma patients from a high incidence area in the Gambia, West Africa显示文摘 | Szymanska K Lesi OA Kirk GD | 2004 | Int J Cancer2004，110，3： | 1 |
| 18 | Evidence-based medicine curriculum: impact on medical students 显示文摘 | Okoromah CA Adenuga AO Lesi FE | 2006 | Med Educ2006，40，5： | 1 |
| 19 | Hepatitis B viral load and risk for liver cirrhosis and hepatocellular carcinoma in The Gambia,West Africa显示文摘 | Mendy ME Welzd Lesi OA | 2010 | J Viral Hepat2010，17，2： | 1 |
| 20 | The Gambia Liver Cancer Study:infection with hepatitis B and C and the risk of hepatocellular carcinoma in West Africa显示文摘 | Kirk GD Lesi OA Mendy M | 2004 | Hepatology2004，43，1： | 1 |
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