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Chinese Journal of Structural Chemistry 2007年第3期26卷 257-262页

作者： lü Gui-Qin yANG Xin lI Min SHI Heng-Zhen School of Science Beijing Institute of Technology Beijing 100081 China Institute of Applied Cata.ysis Yantai University Yantai 264005 China Department of Chemistry Zhoukou Normal University Zhoukou 46600 1 China

Two new borate compounds, C4H10N2·B6O8（OH）2 and （NH3CH2CH2NH3）B5O8 （OH）2, have been solvothermally synthesized and structurally characterized by single-crystal X-ray diffraction, IR, elemental ana.ysis and thermal ana.ysis. Compound 1 crystallizes in the monoclinic system, space group P21/c, with a = 8.3318（17）, b = 6.2118（12）, c = 12.479（3） A, β = 108.96（3）°, V = 610.8（2） A^3, Mr = 313.02, Z = 2, 13,.= 1.702 g/cm^,/J = 0.150 mm^-1, F（000） = 320, R = 0.0387 and wR = 0.0924. Its layered structure is linked by infinite covalently coordinated neutral sheets with 3,20-membered window system, which are built up from alternative B6O8（OH）2 subunits donated by two piperzazine nitrogen donors. 2 crystallizes in monoclinic, space group Co, with a = 6.7207（13）, b = 11.481 （2）, c = 12.564（3）A,β = 95.25（3）°, V = 965.4（3） A^3, Mr = 261.18, Z = 4, Dc = 1.797 g/cm^3,/t = 0.164 mm^-1, F（000） = 536, R = 0.0396 and wR = 0.0752. Its oxoborate structure is generated from the sheets of 3,9-membered boron rings bonded diamine molecules through electrostatic and H-bonding interactions to form a two-dimensional layered network.

关键词： solvothermal synthesis crystal structure borate

Effects of leukemia Inhibitory Factor Receptor on the Early Stage of Osteogenic Differentiation of Human Bone Marrow Mesenchymal Cells

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Effects of Leukemia Inhibitory Factor Receptor on the Early ...

Different characteristics of chronic dibutyltin dichloride-induced pancreatitis and cholangitis in mouse and rat

江西省中西医结合骨质疏松与骨矿盐疾病学术交流会

作者： Tao Wang R.Q yAN X.y XU l.l CAO J.y lIU M.R ZHENG W.D lI Key laboratory of System Bio-medicine of Jiangxi Province Jiujiang University Clinical Skills Center Affiliated Hospital of Jiujiang University Department of Endocrinology Jiujiang Affiliated Hospital of Nanchang University

leukemia inhibitory Factor（lIF） has a wide variety of biological *** have described the effects of lIF on osteoblast ***,the role of lIFR on the early stage of osteogenic differentiation is still *** the pre-experiment,lIFR expression exhibited a gradually downward trend during the early stage of osteogenic differentiation of *** evaluate the effect of lIFR regulation of osteogenic differentiation in greater depth,lIFR overexpression（siRNA） lentiviral plasmids were used to transfect hMSC *** were divided into 4 groups:negative control group（overexpression）,lIFR overexpression group;negative control group（siRNA） and lIFR siRNA *** different days（0 d,3 d and 6 d） of osteogenic differentiation of hMSCs,alkaline phosphatase（AlP） was assayed with an AlP staining and activity assay *** cells were harvested for the detection of mRNA and protein expressions of lIF 、lIFR and osteogensis related factors（AlP;Runt-related transcription factor 2,RUNX2;osteonectin,ONN） by qRT-PCR and western blot *** addition,the culture supernatant was also collected for testing lIF content with an *** results showed that lIFR overexpression of lIFR significantly suppressed the osteoblast differentiation of *** contrast,lIFR siRNA obviously improved the osteoblast differentiation of hMSCs by AlP staining and activity ***,the expression levels of RUNX2,AlP and ONN were also significantly ***,the expression of lIF and lIFR were ana.yzed during the early osteogenic *** results showed that the expression trendency of lIF and lIFR is the consistent during osteogenic differentiation of ***,these results suggested that lIFR may be a novel negative regulator during the early stage of osteogenic differentiation of hMSCs.

关键词： leukemia inhibitory factor receptor osteogenic differentiation human bone marrow mesenchymal stem cells

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Hepatobilia.y & Pancreatic Diseases International 2020年第2期19卷 169-174页

作者： Friederike lütt luise Ehlers Horst Nizze Robert Jaster Department of Medicine II Division of GastroenterologyRostock University Medical CenterE.-Heydemann-Str.618057 RostockGermany Institute of Pathology Rostock University Medical CenterStrempelstraβ1418057 RostockGermany

Background:Current animal models of chronic pancreatitis(CP)often provide only limited pathophysio-logical insights since they incompletely reflect the human *** induced by injection of dibutyltin dichloride(DBTC-pancreatitis)shares with human CP the important feature of extended fibrosis and would be an even more attractive model if it could be transferred from rats to mice,as recently sug-gested in the context of combined ethanol and DBTC *** study aimed to evaluate the effects of DBTC in pancreas and liver of C57Bl/6 mice,a strain commonly used to engineer genetic mouse ***:C57Bl/6 mice and lewis rats were exposed to variable doses of *** an investigation period of up to 4 weeks,laboratory findings and histopathological changes of pancreas and liver were ***:Chronic DBTC-pancreatitis in rats was characterized by acinar cell damage,ductal changes,fi-brosis,and inflammatory cell *** treated with DBTC at 6–8 mg/kg body weight,the standard doses in rats,showed transient increases of lipase activities but no morphological signs of chronic DBTC-pancreatitis 4 weeks after injection of the *** doses of 10–12 mg/kg DBTC were intolerable due to their high *** contrast,mice and rats presented with a similar histopathology of the liver that can be characterized as a chronic-proliferative DBTC-cholangitis with predominating damage and proliferation of the small bile ducts as well as seconda.y portal inflammatory cell infiltrates and a begin-ning portal ***:The DBTC-model cannot be transferred from rats to C57Bl/6 mice with respect to chronic DBTC-pancreatitis,but might be of interest to study DBTC-cholangitis in both species.

关键词： Animal models Cholangitis Pancreatitis

Flow instability of nanofuilds in jet

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Applied Mathematics and Mechanics(English Edition) 2015年第2期36卷 141-152页

作者： yi XIA Jianzhong lIN Fubing BAO T.l.CHAN Department of Mechanics State Key Laboratory of Fluid Power Transmission and ControlZhejiang University Institute of Fluid Mechanics China Jiliang University Department of Mechanical Engineering The Hong Kong Polytechnic University

The flow instability of nanofluids in a jet is studied numerically under various shape factors of the velocity profile, Reynolds numbers, nanoparticle mass loadings,Knudsen numbers, and Stokes numbers. The numerical results are compared with the available theoretical results for validation. The results show that the presence of nanoparticles enhances the flow stability, and there exists a critical particle mass loading beyond which the flow is stable. As the shape factor of the velocity profile and the Reynolds number increase, the flow becomes more unstable. However, the flow becomes more stable with the increase of the particle mass loading. The wavenumber corresponding to the maximum of wave amplification becomes large with the increase of the shape factor of the velocity profile, and with the decrease of the particle mass loading and the Reynolds number. The variations of wave amplification with the Stokes number and the Knudsen number are not monotonic increasing or decreasing, and there exists a critical Stokes number and a Knudsen number with which the flow is relatively stable and most unstable,respectively, when other parameters remain unchanged. The perturbation with the first azimuthal mode makes the flow unstable more easily than that with the axisymmetric azimuthal mode. The wavenumbers corresponding to the maximum of wave amplification are more concentrated for the perturbation with the axisymmetric azimuthal mode.

关键词： nanoparticle-laden jet flow hydrodynamic instability Stokes number Knudsen number particle mass loading

Some stromatic pyrenomycetous fungi from northern ***,Camillea and Hypoxylon(Xylariaceae)

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Fungal Diversity 2012年第4期55卷 65-76页

作者： l.N.Vasilyeva S.l.Stephenson K.D.Hyde A.H.Bahkali Institute of Biology and Soil Science Far East Branch of the Russian Academy of SciencesVladivostok 690022Russia University of Arkansas FayettevilleAR 72701USA Institute of Excellence in Fungal Research Mae Fah Lung UniversityChiang Rai 57100Thailand School of Science Mae Fah Lung UniversityChiang Rai 57100Thailand Bota.y and Microbiology Department College of ScienceKing Saud UniversityRiyadh 11442Saudi Arabia

Fourteen species of stromatic pyrenomycetous fungi(family Xylariaceae)collected in northern Thailand are *** of these(Biscogniauxia lithocarpi,Camillea malaysiensis ***,Hypoxylon juventuterubrum,***,***,and ***)are described as taxa new to *** of these taxa are provided,and they are compared with similar taxa known from the Western Hemisphere.

关键词： Ascomycota SE Asia Taxonomy Xylariales

ON THE INSTABIlITy OF SOlUTIONS TO A NONlINEAR VECTOR DIFFERENTIAl EQUATION OF FOURTH ORDER

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Annals of Differential Equations 2011年第4期27卷 418-421页

作者： Cemil Tun Dept.of Math. Faculty of SciencesYznc Yl University

This paper presents a new result related to the instability of the zero solution to a nonlinear vector differential equation of fourth *** result includes and improves an instability result in the previous literature,which is related to the instability of the zero solution to a nonlinear scalar differential equation of fourth order.

关键词： nonlinear vector differential equation fourth order instability

Association between autoimmune pancreatitis and systemic autoimmune diseases

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World Journal of Gastroenterology 2012年第21期18卷 2649-2653页

作者： Viktória Terzin Imre Fldesi lászló Kovács Gyula Pokorny Tibor Wittmann lászló Czakó First Department of Medicine University of SzegedH-6701 Szeged Hungary Department of Rheumatology University of SzegedH-6701 Szeged Hungary

AIM: To investigate the association between autoimmune pancreatitis (AIP) and systemic autoimmune diseases (SAIDs) by measurement of serum immunoglobulin G4 (IgG4). METHODS: The serum level of IgG4 was measured in 61 patients with SAIDs of different types who had not yet participated in glucocorticosteroid treatment. Patients with an elevated IgG4 level were examined by abdominal ultrasonography (US) and, in some cases, by computer tomography (CT). RESUlTS: Elevated serum IgG4 levels (919 ± 996 mg/l) were detected in 17 (28%) of the 61 SAID patients. 10 patients had Sj gren's syndrome (SS) (IgG4: 590 ± 232 mg/l), 2 of them in association with Hashimoto's thyroiditis, and 7 patients (IgG4: 1388 ± 985.5 mg/l) had systemic lupus erythematosus (SlE). The IgG4 level in the SlE patients and that in patients with SS were not significantly different from that in AIP patients (783 ± 522 mg/l). Abdominal US and CT did not reveal a.y characteristic features of AIP among the SAID patients with an elevated IgG4 level. CONClUSION: The serum IgG4 level may be elevated in SAIDs without the presence of AIP. The determination of serum IgG4 does not seem to be suitable for the differentiation between IgG4-related diseases and SAIDs.

关键词： Autoimmune pancreatitis Serum immunoglobulin G4 level Systemic lupus erythematosus Sj gren’s syndrome Mikulicz’s disease

A global morphology of gravity wave activity in the stratosphere revealed by the 8-year SABER/TIMED data

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A global morphology of gravity wave activity in the stratosp...

Response to ‘Monotreme middle ear is not primitive for Mammalia’

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： y.Zhang J.Xiong l.liu W.Wan Beijing National Observatory of Space Environment Institute of Geology and GeophysicsChinese Academy of Sciences Graduate University Chinese Academy of Sciences

[1]From 8 years’ SABER/TIMED temperature profiles between Janua.y 2002 and December 2009,we studied the activity of gravity waves in the stratosphere globally. Global distribution of stratospheric gravity wave potential energy was calculated from the temperature *** comparison of gravity wave potential energy Ep shows

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National Science Review 2021年第10期8卷 12-14页

作者： John R.Wible Sarah l.Shelley Shundong Bi Section of Mammals Carnegie Museum of Natural History Centre for Vertebrate Evolutiona.y Biology Yunnan University School of Geosciences University of Edinburgh Department of Biology Indiana University of Pennsylvania

To date, a complete auditory apparatus(with malleus, incus, stapes, ectotympanic and perhaps surangular) is known for only three Mesozoic mammals, the haramiyidan Arboroharamiya allinhopsoni [1], the multituberculate Sinobaatar pani [2] and the zhangheotheriid Origolestes lii [3], with subsets of these bones preserved in a handful more,

关键词： EVOlUTION

Corneal transplantation outcomes after the extrusion of an intrastromal keratoprosthesis:a pilot study

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Eye and Vision 2020年第2期7卷 250-254页

作者： Chiara Fariselli Ibrahim Toprak Olena Al-Shymali Jorge l.Alio del Barrio Jorge l.Alio Research and Development Department Calle Cabañal1 Edificio Vissum03016 AlicanteSpain Department of Ophthalmology Pamukkale UniversityDenizliTurkey Cornea and Refractive Surgery Department Calle Cabañal1 Edificio Vissum03016 AlicanteSpain Division of Ophthalmology Universidad Miguel HernándezAlicanteSpain

This short report includes 5 eyes of 5 patients(mean age 63.2±12 years)who underwent a tectonic keratoplasty[deep anterior lamellar keratoplasty(DAlK)or penetrating keratoplasty(PK)]in order to rehabilitate the eye after the extrusion of the non-perforating keratoprosthesis(Kpro)KeraKlear(KeraMed,USA).The non-perforating Kpro was extruded after a mean period of 21.4±21.8 months due to *** two cases,the keratoplasty was performed the same day of the non-perforating Kpro removal due to a severe melting,while in the other three cases it was performed one to 3 months *** eyes received a DAlK,but in 3 eyes a macroscopic Descemet membrane perforation forced the conversion into a *** mean follow-up period after the keratoplasty was 16.8±6.6 *** cases of rejection were *** the 5 eyes achieved“anatomical success”(transparent graft,with no signs of infection or inflammation).Two eyes showed limited“functional success”because the achievement of the best visual potential was prevented by the development of glaucomatous optic atrophy during the follow-up *** conclusion,this short report presents an unexpected success of a keratoplasty performed with a tectonic purpose after the extrusion of the non-perforating Kpro because the corneal graft remained transparent,without neovascularization or scarring during the follow-up *** initial evidence shows some encouraging results regarding graft survival rate and the achievement of a useful visual rehabilitation with keratoplasty after a nonperforating Kpro failure instead of repeating the Kpro implantation.

关键词： Keratoprosthesis Extrusion Keratoplasty Corneal transplantation