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Chinese Physics B 2020年第8期29卷 133-136页

作者： Qi Hao Ji-Chao Qiao e V Goncharova G V Afonin Min-Na Liu Yi-Ting Cheng V A Khonik School of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi'an 710072China Department of General Physics Voronezh State Pedagogical UniversityLenin Street 86Voronezh 394043Russia

A relationship between thermal effects and relaxation of the high-frequency shear modulus upon heat treatment of bulk Zr48(Cu5/6Ag1/6)44Al8 metallic glass is *** relationship is attributed to the relaxation of a interstitial-type defect system frozen-in from the melt upon glass *** data show that thermal effects occurring on heating include heat release below the glass transition temperature,heat absorption above it and heat release caused by *** equation derived within the Interstitialcy theory can be used to calculate the shear modulus relaxation using the calorimetric *** obtained results are used to trace the defect concentration as functions of temperature and thermal prehistory.

关键词： shear modulus metallic glass structural relaxation interstitialcy theory

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Differently sized cuckoos pose different threats to hosts

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Current Zoology 2020年第3期66卷 247-253页

作者： Jiangping YU Mingju e Wei SUN Wei LIANG Haitao WANG Anders Pape MΦLLeR jilin engineering Laboratory for Avian ecology and Conservation Genetics School of Life SciencesNortheast Normal UniversityChangchun 130024China Ministry of education Key Laboratory of Vegetation ecology School of Life SciencesNortheast Normal UniversityChangchun 130024China Jilin Provincial Key Laboratory of Animal Resource Conservation and Uilization School of Life SciencesNortheast Normal UniversityChangchun 130024China Ministry of education Key Laboratory for ecology of Tropical Islands College of Life SciencesHainan Normal UniversityHaikou 571158China ecologie Systematique evolution Universite Paris-SudCNRSAgroParis TechUniversite Paris SaclayOrsay Cedex F-91405France Ministry of education Key Laboratory for Biodiversity Science and ecological engineering Collge of Life SciencesBeiing Normal UniversityBeijing 100875China

Hole-nesting tits Parus *** been classified as"unsuitable"hosts for cuckoo parasitism because cuckoos cannot enter a cavity if the entrance is too ***,Chinese tits could re-ject alien eggs and egg ejection rate increased with the local diversity of parasitic cuckoo *** behavior among Chinese tits may have evolved due to greater size variation among sympatric cuckoo *** raises the question of whether differently sized parasitic cuckoos pose different threats to Chinese tits.A green-backed tit Parus monticolus population that is sym-patric with Asian emerald cuckoo Chrysococcyx maculatus(eme-cuckoo,small-sized parasite)and common cuckoo Cuculus canorus(com-cuckoo,large-sized parasite),and a cinereous tit *** population that is only sympatric with com-cuckoo were chosen as study *** observed behavioral response and recorded alarm calls of the 2 tit species to eme-cuckoo,com-cuckoo,chipmunk Tamias sibiricus(a nest predator)and dove Streptopelia orientalis(a harm-less control),and subsequently played back alarm calls to conspecific incubating *** dummy experiments,both tit species performed intense response behavior to chipmunk,but rarely responded strongly to the 3 avian *** playback experiments,both tit species responded strongly to conspecific chipmunk alarm calls,but rarely responded to dove alarm *** inten-sity of response of incubating female green-backed tits to eme-cuckoo and com-cuckoo alarm calls were similar to that of chipmunk alarm calls,while the intensity to eme-cuckoo alarm calls was higher than the intensity to dove alarm calls which was similar to that of com-cuckoo alarm *** contrast,few female cinereous tits responded to eme-cuckoo and com-cuckoo alarm *** findings indicated that the threat level of eme-cuckoo was slightly greater than that of com-cuckoo for sympatric green-backed tits,but not for allopatric cinereous tits.

关键词： body size cinereous tit cuckoo parasitism green-backed tit play-back sympatry with multiple cuckoo species

团簇ConMoS(n=1-5)原子间作用力及前线轨道成分密度泛函理论分析

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太原理工大学学报 2024年第3期55卷 513-521页

作者：王智瑶方志刚王洁刘立娥毛智龙吴庭慧宋嘉辽宁科技大学化学工程学院辽宁鞍山114051

【目的】为得到团簇ConMoS(n=1-5)更多微观结构信息,同时为后续电子性质、催化性能等研究提供理论基础,探究了该团簇的原子间作用力关系及前线轨道成分。【方法】依据密度泛函理论,采用B3LYP泛函和def2-TZVP基组,在多个自旋多重度下运用... 详细信息

【目的】为得到团簇ConMoS(n=1-5)更多微观结构信息,同时为后续电子性质、催化性能等研究提供理论基础,探究了该团簇的原子间作用力关系及前线轨道成分。【方法】依据密度泛函理论,采用B3LYP泛函和def2-TZVP基组,在多个自旋多重度下运用Gaussian09软件包对该团簇进行构型优化和理论分析。【结果】结果表明:该团簇含有21种稳定构型;通过对AIM理论、电子定域化函数和变形密度分析,得到了该团簇内部相互作用程度及电子密度转移趋势,其中该团簇内原子相互作用时,Co、Mo和S原子间成键共价作用较强,S原子定域性较高,域内电子不易逃逸出去,Co和Mo原子离域性较强,域内电子易于外界交换;通过Hirshfeld方法原子贡献率分析,得出金属原子是HOMO、LUMO轨道成份主要贡献来源,其中Mo和Co原子对前线轨道贡献率占据优势。最终得出该团簇内部原子间主要以共价键作用结合,但作用力强弱并不一致,Mo和Co原子在化学反应中应重点关注。

关键词：团簇ConMoS 密度泛函理论 AIM理论电子定域化函数

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Serological Cross Reactivity between Zika and Dengue Viruses in experimentally Infected Monkeys

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Virologica Sinica 2018年第4期33卷 378-381页

作者： Shailendra Mani Chee Wah Tan Lin-Fa Wang Danielle e.Anderson Programme in emerging Infectious Diseases Duke-NUS Medical School

Dear editor,Zika virus(ZIKV),a pathogen within the genus Flavivirus,family Flaviviridae brought an international public health emergency due to its association with neonatal microcephaly case(Platt and Miner 2017).Currently the most reliable diagnostic test is PCR detection of ZIKV RNA from body fluid ***,the short viremia window and asymptomatic/mild infections greatly reduce the success rate of PCRs(de Vasconcelos et al.2018).

关键词：感染病毒试验性血清学登革热猴子反应紧急情况

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Sonoluminescence and the probability of isothermal bubble collapse

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Nuclear Science and Techniques 1997年第4期8卷 236-238页

作者： Thomas V Prevenslik ( 2e Greenery Court, Discovery Bay, Hong Kong)

ＳｏｎｏｌｕｍｉｎｅｓｃｅｎｃｅａｎｄｔｈｅｐｒｏｂａｂｉｌｉｔｙｏｆｉｓｏｔｈｅｒｍａｌｂｕｂｂｌｅｃｏｌａｐｓｅＴｈｏｍａｓＶＰｒｅｖｅｎｓｌｉｋ（２ＥＧｒｅｎｅｒｙＣｏｕｒｔ，ＤｉｓｃｏｖｅｒｙＢａｙ，Ｈｏｎｇ... 详细信息

ＳｏｎｏｌｕｍｉｎｅｓｃｅｎｃｅａｎｄｔｈｅｐｒｏｂａｂｉｌｉｔｙｏｆｉｓｏｔｈｅｒｍａｌｂｕｂｂｌｅｃｏｌａｐｓｅＴｈｏｍａｓＶＰｒｅｖｅｎｓｌｉｋ（２ＥＧｒｅｎｅｒｙＣｏｕｒｔ，ＤｉｓｃｏｖｅｒｙＢａｙ，ＨｏｎｇＫｏｎｇ）ＡｂｓｔｒａｃｔＣｏｍｐ...

关键词：冷聚变声致发光等温泡消失

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Right-heart contrast echocardiography reveals missed patent ductus arteriosus in a postpartum woman with pulmonary embolism: A case report

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World Journal of Clinical Cases 2021年第3期9卷 639-643页

作者： Jin-Ling Chen Dan-e Mei Cai-Gui Yu Zhi-Yu Zhao Department of echocardiography Renmin Hospital of Wuhan UniversityWuhan 430060Hubei ProvinceChina

BACKGROUND As an established,simple,inexpensive,and surprisingly effective diagnostic tool,right-heart contrast echocardiography(RHCe)might help in solving a vexing diagnostic *** performed appropriately and interpreted logically,RHCe allows for differentiation of various usual and unusual right-to-left shunts based on the site of injection and the sequence of microbubble appearance in the *** SUMMARY A 31-year-old woman was readmitted to hospital with a 2-mo history of worsening palpitation and chest *** years prior,she had been diagnosed with postpartum pulmonary embolism by conventional echocardiography and computed tomography *** the latter showed no sign of pulmonary artery embolism,the former showed pulmonary artery hypertension,moderate insufficiency,and mild stenosis of the aortic *** showed microbubbles appearing in the left ventricle,slightly delayed after rightheart filling with microbubbles;no microbubbles appeared in the left atrium and microbubbles’appearance in the descending aorta occurred nearly simultaneous to right pulmonary artery filling with *** echocardiography was re-performed,and an arterial horizontal bidirectional shunt was found according to Doppler enhancement effects caused by *** original computed tomography angiography findings were reviewed and found to show a patent ductus *** RHCe shows a special imaging sequence for unexplained pulmonary artery hypertension with aortic valve insufficiency and simultaneous patent ductus arteriosus.

关键词： Right heart contrast echocardiography Computed tomography angiography Patent ductus arteriosus Pulmonary embolism Pulmonary artery hypertension Case report

Pleiotropic effects of bombesin and neurotensin on intestinal mucosa: Not just trefoil peptides

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World Journal of Gastroenterology 2008年第22期14卷 3602-3603页

作者： Stelios F Assimakopoulos Chrisoula D Scopa Vassiliki N Nikolopoulou Constantine e Vagianos Department of Internal Medicine School of Medicine University of Patras Patras 26110 Greece Department of Pathology School of Medicine University of Patras Patras 26110 Greece Division of Gastroenterology Department of Internal Medicine School of Medicine University of Patras Patras 26110 Greece First Surgical Department "Saint Panteleimon" General Hospital of Nikaia Piraeus 18454 Greece

Bombesin and neurotensin are neuropeptides which exert a wide spectrum of biological actions on gastrointestinal tissues influencing intestinal growth and adaptation, intestinal motility, blood flow, secretion, nutrient absorption and immune response. Based mainly on their well-established potent enterotrophic effect, numerous experimental studies investigated their potential positive effect on the atrophic or injured intestinal mucosa. These peptides proved to be effective mucosa-healing factors, but the potential molecular and cellular mechanisms for this action remained unresolved. In a recently published study (World J Gastroenterol 2008; 14(8): 1222-1230), it was shown that their protective effect on the intestine in experimentally induced inflammatory bowel disease was related to anti-inflammatory, antioxidant and antiapoptotic actions. These results are in close agreement with our previous studies on jaundiced and hepatectomized rats that showed a regulatory effect of bombesin and neurotensin on critical cellular processes such as enterocyte' proliferation and death, oxidative stress and redox equilibrium, tight junctions' formation and function, and inflammatory response. The pleiotropic effects of bombesin and neurotensin on diverse types of intestinal injury may justify their consideration for clinical trials.

关键词： Bombesin Neurotensin Pleiotropic Neuropeptides Regulatory peptides

The selected political writings of John Locke

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Challenges in the management of paediatric cataract in a developing country

作者： edited by Paul e. Sigmund.

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International Journal of Ophthalmology(english edition) 2011年第1期4卷 66-68页

作者： Ifeoma R ezegwui Ada e Aghaji Nkechi J Uche ernest N Onwasigwe Paediatric Ophthalmology Unit Department of OphthalmologyUniversity of Nigeria Teaching HospitalEnuguNigeria

AIM:To review the management of cataract in children in a tertiary hospital in a developing country,and to highlight the challenges therein.· MeTHODS:The hospital records of children aged 15 years or less that had cataract surgery at University of Nigeria Teaching Hospital,enugu from 2005 to 2008 were reviewed *** was obtained on bio-data,pre-and post-operative visual acuity(VA),biometry,and type of surgery,use of intraocular lens(IOL) and presence of *** was used for data entry and analysis.· ReSULTS:The hospital records of 21 children(26 eyes) were *** were 12 males(57.1%) and 9 females(42.9%).Pre-operative VA could not be assessed in 11 eyes(42.3%),14 eyes(53.9%) had VA e eye(3.8%) had VA 6/*** was done in only 5 eyes(19.2%).All eyes had standard extracapsular cataract extraction without primary posterior capsulectomy;12 eyes(46.2%) had posterior chamber intraocular lens(PC-IOL) implant while 13 eyes(50.0%) had no *** 12 weeks of follow up,vision assessment was available in only 15 *** best correction,VA of 6/18 or better was achieved in only 5 eyes(33.3%).· CONCLUSION:Inadequate facilities and inadequate follow up after surgery are some of the challenges in managing paediatric cataract in the developing *** these challenges are not addressed,cataract will remain a major cause of childhood blindness and low vision in Africa for many *** should be collaboration between Paediatric Ophthalmology Centres in industrialized and developing countries to enhance skill *** and International Non-governmental Organizations can go a long way to facilitate this exchange.

关键词： challenges childhood cataract developing countries

effects of fatty acid chain length and degree of unsaturation on the surface activities of monoacyl trehaloses

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Frontiers of Chemical Science and engineering 2009年第4期3卷 407-412页

作者： Yue-e SUN Wenshui XIA Xueyan TANG Zhiyong He Jie CHeN State Key Laboratory of Food Science and Technology Jiangnan University1800 Lihu RoadWuxi 214122China

The surface properties of monoacyl trehaloses with different acyl chains were investigated at 30℃,40℃,50℃,and 60℃.Monoacyl trehaloses were enzymatically synthesized and purified with silica gel column chromatography and semi-preparative high-performance liquid chromatography(HPLC),and the purity of products was identified by mass spectrometry(MS)and nuclear magnetic resonance(NMR).The surface tension of monoacyl trehalose in pure water was measured using Doüy ring method at different *** critical micelle concentrations(CMC),surface tension at the CMC,γCMC,and residual area per molecule,a,were estimated from the *** CMC value of unsaturated monoacyl trehalose was affected by both the degree of unsaturation and the acyl chain length,and the effect of chain length on the CMC value was much stronger than that of the unsaturation ***,there was no significant dependency of theγCMC value and a values on the chain length or the unsaturated degree.

关键词： monoacyl trehalose surface properties degree of unsaturation critical micelle concentration