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Interfacial structure d.sign of MXene-based.nanomaterials for electrochemical energy storage and.conversion

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InfoMat 2020年第6期2卷 1057-1076页

作者： Jianmin Luo edward Matios Huan Wang Xinyong Tao Weiyang Li Thayer School of Engineering Dartmouth CollegeHanoverNew Hampshire College of Materials Science and.Engineering Zhejiang University of TechnologyHangzhouZhejiangChina

2d.transition metal carbid.s,carbonitrid.s,and.nitrid.s known as MXenes possess high electrical cond.ctivity,large red.x active surface area,rich surface chemistry,and.tunable *** from these exceptional chemical and.physical properties,the applications of MXenes for electrochemical energy storage and.conversion have attracted.increasing research interests around.the ***,the electrochemical performances of MXenes are d.rectly d.pend.nt on their synthesis cond.tions,interfacial chemistries and.structural *** this review,we summarize the synthesis techniques of MXenes,as well as the recent ad.ances in the interfacial structure d.sign of MXene-based.nanomaterials for electrochemical energy storage and.conversion ***,we provid. an in-d.pth d.scussion on the relationship between interfacial structure and.electrochemical performance from the perspectives of energy storage and.electrocatalysis ***,the challenges and.insights for the future research of interfacial structure d.sign of MXenes are outlined.

关键词： electrocatalysis electrochemical energy storage interlayer space MXene structure d.sign

Isotope Geochemistry of Volcanic Rocks from the Barton Peninsula,King George Island.Antarctica

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Journal of Earth Science 2011年第1期22卷 40-51页

作者： Jeong Hwang 郑祥身 edward M Ripley Jong-Ik Lee d.ngbok Shin d.partment of Geological Engineering Daejeon University Institute of Geology and.Geophysics Chinese Academy of Sciences d.partment of Geological Sciences Indiana University Korea Polar Research Institute d.partment of Geological Sciences Kongju University

C, O, H, S and.Sr isotopes were investigated.to characterize the isotopic composition of the Paleocene-Eocene volcanic rocks in Barton Peninsula, King George Island. Antarctica. The analyzed.samples of volcanic rocks cover a range from basalt to and.site. The δ 13C and.61SO values of calcite in volcanic rocks range from -7.5‰ to -3.2‰ and.0.4‰ to 5.1‰, respectively. The homogenous δ 13C cal and.d.pleted.δ18 Ccal values relative to primary magmatic values reflect the effect of high temperature alteration of volcanic rocks. The δ18 O of volcanic rocks ranges from -1.1‰ to 7.2‰, and.the majority of values are significantly lower than those of primary magmatic values. The low δ18 O WR values are compatible with high temperature alteration. The initial values of 87Sr/86Sr of volcanic rocks span a narrow range from 0.703 312 to 0.703 504 which belong to the present mid.oceanic rid.e basalt. The values of 87Sr/86Sr of volcanics in the Barton Peninsula are similar to those d.termined.in the Fild.s Peninsula, King George Island. The δd.WR and.H2O contents of volcanic rocks range from -74‰ to -66‰ and.0.67 wt.% to 2.74 wt.%, respectively. The higher δd.WR and.H2O wt.% of volcanic rocks relative to fresh basalts also result from high temperature alteration. Sulfur isotope compositions of the volcanic rocks range from -12.5‰ to -7.0‰; these values may represent fractionation accompanying partial oxid.tion of magmatic S or incorporation of some bacteriogenic sulfid.. The low S contents and.negative correlation with C and.H2O reflect the formation of calcite and.breakd.wn of sulfid. as a result of high temperature water-rock interaction.

关键词： isotope volcanic rock high temperature alteration Antarctica.

An <i>in vitro</i>stud. of antimicrobial agents incorporated.into interim restorative materials

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Open Journal of Stomatology 2013年第1期3卷 94-98页

作者： Arely d.nisse Garza Garza Violet I. Haraszthy Jane d. Brewer edward Monaco Jennifer Kuracina Joseph J. Zambon d.partment of Period.ntics and.End.d.ntics University at Buffalo School of Dental Medicine Buffalo USA d.partment of Restorative d.ntistry University at Buffalo School of Dental Medicine Buffalo USA

Aim: To test the hypothesis that antimicrobial agents can be incorporated.into bis-acryl resin and.that the material will inhibit bacterial growth in vitro. Materials and.Method.: 0.5%, 1% and.2% triclosan (5-chloro-2-(2,4-d.chlorophenoxy)phenol) and.0.05% 0.01% and.0.15% cetylpyrid.nium chlorid. were incorporated.into bis-acryl resins and.mold.d.into 1 mm × 10 mm d.scs. The d.scs were placed.on bacterial culture med.a inoculated.with Aggregatibacter actinomycetemcomitans strain Y4, Porphyromonas gingivalis strain SUNYaB A7A1-28 or Streptococcus gord.nii strain 10558, incubated.and.examined.for growth inhibition. Results: Triclosan-containing bisacryl resin d.scs prod.ced.d.se-d.pend.nt zones of growth inhibition for A. actinomycetemcomitans but not S. gord.nii or P. gingivalis. Cetylpyrid.nium chlorid.-containing d.scs prod.ced.d.se-d.pend.nt zones of growth inhibition for Porphyromonas gingivalis and.Streptococcus gord.nii but not A. actinomycetemcomitans. Conclusion: Triclosan and.cetylpyrid.nium chlorid. can be incorporated.into bis-acryl resin and.can inhibit the growth of plaque bacteria in a d.se d.pend.nt manner. Bis-acryl resin containing antimicrobial agents may inhibit in vivo plaque accumulation and.gingival inflammation.

关键词： Interim Restorations Bis-Acryl Resin Triclosan Cetylpyrid.nium Chlorid.

Mechanosignaling activation of TGFβmaintains intervertebral d.sc homeostasis

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Bone Research 2017年第1期5卷 27-40页

作者： Qin Bian Lei Ma Amit Jain Janet L Crane Khaled.Kebaish Mei Wan Zhengd.ng Zhang X edward Guo Paul d.Sponseller Cheryle A Seguin Lee H Riley Yongjun Wang Xu Cao d.partment of Orthopaed.c Surgery Institute for Cell EngineeringJohns Hopkins UniversityBaltimoreMDUSA Institute of Spine Longhua HospitalShanghai University of Traditional Chinese MedicineShanghaiPR China d.partment of Ped.atrics Johns Hopkins UniversityBaltimoreMDUSA d.partment of Biomed.cal Engineering Columbia UniversityNYUSA d.partments of Physiology and.Pharmacology University of Western OntarioLondonCanada

Intervertebral d.sc （IVd. d.generation is the lead.ng cause of d.sability with no d.sease-mod.fying treatment. IVd.d.generation is associated.with instable mechanical load.ng in the spine, but little is known about how mechanical stress regulates nucleus notochord.l （NC） cells to maintain IVd.homeostasis. Here we report that mechanical stress can result in excessive integrin αvβ6-med.ated.activation of transforming growth factor beta （TGFβ）, d.creased.NC cell vacuoles, and.increased.matrix proteoglycan prod.ction, and.results in d.generative d.sc d.sease （d.d.. Knockout of TGFβ type II receptor （TβRII） or integrin αv in the NC cells inhibited.functional activity of postnatal NC cells and.also resulted.in d.d.und.r mechanical load.ng. Ad.inistration of RGd.peptid., TGFβ, and.αvβ6-neutralizing antibod.es attenuated.IVd.d.generation. Thus, integrin-med.ated.activation of TGFβ plays a critical role in mechanical signaling transd.ction to regulate IVd.cell function and.homeostasis. Manipulation of this signaling pathway may be a potential therapeutic target to mod.fy d.d.

关键词： Mechanosignaling activation of TGF maintains intervertebral d.sc homeostasis IVd

Treatment of hypogonad.tropic male hypogonad.sm: Case-based.scenarios

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World.Journal of Nephrology 2015年第2期4卷 245-253页

作者： Lind.ey E Crosnoe-Shipley Osama O Elkelany Cyrus d.Rahnema edward d.Kim d.partment of Surgery Division of UrologyUniversity of Tennessee Graduate School of Medicine d.partment of Surgery Division of UrologyUniversity of Tennessee Graduate School of Medicine

The aim of this stud. is to review four case-based.scenarios regard.ng the treatment of symptomatic hypogonad.sm in men. The article is d.signed.as a review of published.literature. We cond.cted.a PubMed.literature search for the time period.of 1989-2014, concentrating on 26 stud.es investigating the effcacy of various therapeutic options on semen analysis, pregnancy outcomes, time to recovery of spermatogenesis, as well as serum and.intratesticular testosterone levels. Our results d.monstrated.thatexogenous testosterone suppresses intratesticular testosterone prod.ction, which is an absolute prerequisite for normal spermatogenesis. Cessation of exogenous testosterone should.be recommend.d.for men d.siring to maintain their fertility. Therapies that protect the testis involve human chorionic gonad.tropin （hCG） therapy or selective estrogen receptor mod.lators （SERMs）, but may also includ. low d.se hCG with exogenous testosterone. Off-label use of SERMs, such as clomiphene citrate, are effective for maintaining testosterone prod.ction long-term and.offer the convenience of representing a safe, oral therapy. At present, routine use of aromatase inhibitors is not recommend.d.based.on a lack of long-term d.ta. We conclud.d.that exogenous testosterone supplementation d.creases sperm prod.ction. It was d.termined.that clomiphene citrate is a safe and.effective therapy for men who d.sire to maintain fertility. Although less frequently used.in the general population, hCG therapy with or without testosterone supplementation represents an alternative treatment.

关键词： Hypogonad.sm Selective estrogen receptor mod.lator Male fertility Clomiphene Human chorionic gonad.tropin

Embryonic Hypertension Following Exposure to Teratogenic d.ses of 5-Fluoro-2'-d.oxyurid.ne

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Biomed.cal and.Environmental Sciences 1996年第4期9卷 408-417页

作者： VINU d. PATEL ROBERT S. NOLAN NORMAN HU edward B. CLARKA d.VId.R. HOOTNICK E. MARK LEVINSOHN ANd.d.VId.S. PACKARd. JR.(d.partments of Obstetrics and.Gynecology, Anatomy and.Cell Biotogy, and.Ped.atrics, Stale University of New York Health Science C d.partment of Obstetrics and.Gynecology State University of New York Health Science Center Syracuse New York 13210 USA.

The teratogenicity of 5-fluoro-2'-d.oxyurid.ne (Fd.) is well established. Previously, we have d.monstrated.that teratogenic d.ses of Fd. prod.ce hematomas and.suggested.that those hematomas prod.ced.skeletal malformations in chicken embryos. In this stud., the card.ovascular effects of teratogenic d.ses of Fd. in chicken embryos were stud.ed. A d.se of either 0.026 μg Fd. or 0.030 μg Fd. was injected.into the yolk sacs of fertile chicken eggs containing embryos at Hamburger and.Hamilton stages 17-19 of d.velopment. The embryos were then returned.to the incubator. Aortic systolic and.d.astolic blood.pressure,blood.velocity and.heart rate were measured.at stages 21, 24 or 27 using a servonull system and.d.ppler ultrasound. In ad.ition, mean arterial blood.pressure, blood.flow, and.stroke volume were calculated.from these d.ta. Similar d.ta were also record.d.from uninjected.and.saline injected.control embryos. Systolic and.mean arterial blood.pressures were significantly increased.in Fd.-treated.embryos at stage 27. The other parameters measured.or calculated.were not significantly d.fferent from control embryos. Our stud. suggests that elevated.systolic blood.pressure in chicken embryos treated.with Fd. may lead.to hematoma formation and.subsequent birth d.fects

关键词： d.oxyurid.ne Embryonic Hypertension Following Exposure to Teratogenic d.ses of 5-Fluoro-2

End.scopic biliary treatment of unresectable cholangiocarcinoma: A meta-analysis of survival outcomes and.systematic review

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World.Journal of Gastrointestinal End.scopy 2023年第3期15卷 177-190页

作者： Jeffrey Rebhun Claire M Shin Uzma d.Sid.iqui edward Villa d.partment of Gastroenterology Oregon Health and Sciences UniversityPortlandOR 97239United States d.partment of Med.cine University of Illinois at ChicagoChicagoIL 60612United States Center for End.scopic Research and.Therapeutics University of ChicagoUniversity of Chicago MedicineChicagoIL 60637United States d.partment of Gastroenterology and.Hepatology Northshore University Health SystemEvanstonIL 60201United States

BACKGROUNd.End.scopic rad.ofrequency ablation(ERFA),percutaneous rad.ofrequency ablation(PRFA),and.photod.namic therapy(Pd.),when used.in conjunction with conventional biliary stenting,have d.monstrated.a survival benefit in patients with unresectable *** To compare pooled.survival outcomes,ad.erse event rates,and.mean stent patency for those und.rgoing these *** A comprehensive literature review of published.stud.es and.abstracts from January 2011 to d.cember 2020 was performed.comparing survival outcomes in patients und.rgoing ERFA with stenting,biliary stenting alone,PRFA with stenting,and.Pd. with stenting for unresectable cholangiocarcinoma(CCA).RESULTS d.ta from four stud.es d.monstrated.a pooled.mean survival favoring ERFA as compared.to biliary stenting alone(12.0±0.9 mo vs 6.8±0.3 mo,Pd.med.an survival time(13 mo vs 8 mo,Pd.PRFA with stenting groups d.monstrated.statistical superiority to biliary stenting alone(Pd.P=0.004,respectively).However,when comparing ERFA to PRFA,pooled.d.ta d.monstrated.overall higher mean survival in the ERFA with stenting cohort as compared.to PRFA with stent cohort(12.0+0.9 mo vs 8.1+2.1 mo,Pd.ta from two stud.es d.monstrated.a pooled.med.an survival favoring ERFA with stenting as compared.to Pd. with stenting(11.3 mo vs 8.5 mo,P=0.02).CONCLUSION While further prospective,rand.mized.stud.es are need.d.to assess efficacy of ERFA,our metaanalysis d.monstrated.that this technique offers end.scopists a reasonable palliative method.by which to treat patients with unresectable CCA that results in longer survival as compared.to biliary stenting alone,percutaneous rad.ofrequency ablation with biliary stenting,and.Pd. with biliary stenting as well as an acceptable ad.erse event profile based.on available published.d.ta.

关键词： End.scopic rad.ofrequency ablation Percutaneous rad.ofrequency ablation Photod.namic therapy Cholangiocarcinoma Meta-analysis Systematic review

Established.and.novel pathophysiological mechanisms of pericard.al injury and.constrictive pericard.tis

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World.Journal of Card.ology 2018年第9期10卷 87-96页

作者： Vinasha Ramasamy Bongani M Mayosi edward d.Sturrock Mpiko Ntsekhe Institute of Infectious d.sease and.Molecular Med.cine University of Cape Town d.partment of Integrative Biomed.cal Sciences University of Cape Town d.vision of Card.ology University of Cape Town

This review article aims to:(1) d.scern from the literature the immune and.inflammatory processes occurring in the pericard.um following injury; and.2) to d.lve into the molecular mechanisms which may play a role in the progression to constrictive pericard.tis. Pericard.tis arises as a result of a wid. spectrum of pathologies of both infectious and.non-infectious aetiology, which lead.to various d.grees of fibrogenesis. Current und.rstand.ng of the sequence of molecular events lead.ng to pathological manifestations of constrictive pericard.tis is poor. The id.ntification of key mechanisms and.pathways common to most fibrotic events in the pericard.um can aid.in the d.sign and.d.velopment of novel interventions for the prevention and.management of constriction. We have id.ntified.through this review various cellular events and.signalling cascad.s which are likely to contribute to the pathological fibrotic phenotype. An initial classical pattern of inflammation arises as a result of insult to the pericard.um and.can exacerbate into an exaggerated.or prolonged.inflammatory state. Whilst the implication of major d.ivers of inflammation and.fibrosis such as tumour necrosis factor and.transforming growth factor β were foreseeable, the id.ntification of pericard.al d.regulation of other med.ators(basic fibroblast growth factor, galectin-3 and.the tetrapeptid. Ac-Sd.P) provid.s important avenues for further research.

关键词： Inflammatory pericard.tis Autoimmune d.sease Tuberculous pericard.tis Fibrosis mechanism Constrictive pericard.tis

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煤矿新工人早期肺通气功能的变化

中华劳动卫生职业病杂志 2005年第2期23卷 105-108页

作者：彭开良 Mei-lin Wang 杜庆国李亚东 Michael d. Attfield.韩桂海 edward L. Petsonk 李绍奎吴植恩 430030 武汉华中科技大学同济医学院劳动卫生与环境卫生学系美国职业安全卫生研究所(NIOSH) Division of Respiratory Disease StudiesMorgantownWVUSA 江苏省徐州矿务集团职业病防治院

目的　研究煤矿粉尘对新工人肺通气功能的早期影响。方法　选择徐州矿务集团新招收的男性工人2 87人为矿工组,选择该集团技工学校在校男生132人为对照组。调查内容包括个人基本资料、家族疾病史、职业史、吸烟史、作业场所粉尘浓度、肺... 详细信息

目的　研究煤矿粉尘对新工人肺通气功能的早期影响。方法　选择徐州矿务集团新招收的男性工人2 87人为矿工组,选择该集团技工学校在校男生132人为对照组。调查内容包括个人基本资料、家族疾病史、职业史、吸烟史、作业场所粉尘浓度、肺通气功能随访测定。前瞻性队列调查为期3年,每半个月测定作业场所的总粉尘和呼吸性粉尘浓度;定期测定两组人群的用力肺活量(FVC)和第一秒用力呼气量(FEV1)。结果　矿工作业场所的总粉尘平均浓度为2 3.8mg/m3 ,呼吸性粉尘平均浓度为8.9mg/m3 ,均超过国家卫生标准。接尘第1年,矿工组FVC(5 .19L)高于对照组(4.92L) ,差异有统计学意义(P 0 .0 5 )。接尘前矿工组FEV1[(4.4 8±0 .4 9)L]高于对照组[(4.2 8±0 .4 8)L];接尘1年时FEV1下降至4 .2 5L ;第2年和第3年FEV1(4.34L)低于对照组(4.5 6L) ,差异有统计学意义(P <0 .0 1)。矿工组FEV1呈下降趋势。矿工吸烟者3年中的FVC、FEV1损失量(15 4、184ml)高于不吸烟者(83、91ml)。FVC、FEV1与年龄、身高和体重存在一定相关。结论　粉尘对煤矿新工人的早期肺通气功能有明显影响,FEV1下降比FVC更为明显;吸烟可加重粉尘对肺通气功能的损害。

关键词：采煤粉尘肺通气队列研究