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International Journal of Clinical Med.cine 2014年第18期5卷 1130-1141页

作者： Nathan M. Hinkle Alpin d. Malkan john A. Sand.val d.partment of Surgery St. Jude Children’s Research Hospital Memphis USA d.partment of Surgery University of Tennessee Health Science Center Memphis USA

Oncologic staging of many solid.organ malignancies involves an und.rstand.ng of how cancers spread.via the lymphatic system, and.ultimately may involve evaluation of the primary nod.l d.ainage basin by performing a sentinel lymph nod. biopsy. In the ad.lt population, there are well established.ind.cations for sentinel lymph nod. biopsy in d.seases like melanoma and.breast cancer. However, its use and.relevance in the ped.atric population is less d.fined. This review d.tails the history and.d.velopment of sentinel lymph nod. biopsy technique, ad.anced.lymph nod. mapping techniques currently und.r investigation, and.the applications of sentinel nod. biopsy toward. child.ood.cancers.

关键词： Sentinel Lymph Nod. Biopsy Ped.atric Melanoma Spitz Nevus Atypical Spitzoid Tumor Spitzoid Melanoma Rhabd.myosarcoma Nonrhabd.myosarcoma Soft Tissue Sarcoma Breast Cancer

Al-Cu-Si合金中的CuAl_2相在固溶处理时的溶解对时效后强度的影响

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材料科学与工艺 2006年第5期14卷 547-551页

作者：张丁非彭建 Harold.d.Brod. john.E.Morral 重庆大学材料科学与工程学院四川重庆400044 美国康涅狄格州立大学料科学学院 06268

Al-3．5Cu-7．0Si铸造铝合金在固溶处理过程中，随固溶处理时间的延长，时效后的强度显著增加,两次强度增加分别发生在0—2小时和4—8小时，与铸态强度相比，其抗拉强度分别增加50-80MPa和约20MPa.金相观察及扫描电镜分析表明，第一次... 详细信息

Al-3．5Cu-7．0Si铸造铝合金在固溶处理过程中，随固溶处理时间的延长，时效后的强度显著增加,两次强度增加分别发生在0—2小时和4—8小时，与铸态强度相比，其抗拉强度分别增加50-80MPa和约20MPa.金相观察及扫描电镜分析表明，第一次强度增加主要源于依附在杂质上的CuAl2相及基体中弥散的CuAl2相的溶解，硅相粒子的平滑化也对强度提高有一定作用；第二次强度增加则是由于块状CuAl2相开始溶解的贡献．该合金中的富铁化合物特别是β—FeSiAl5相非常稳定，通常的固溶处理难以使其溶解或改变其形状和分布．

关键词： Al-Cu--Si合金固溶处理 CuAl2相溶解强化

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An infertile male with d.lated.seminal vesicles d.e to functional obstruction

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Asian Journal of And.ology 2017年第2期19卷 256-257页

作者： Michael d.Font Alexand.r W Pastuszak john R Case Larry I Lipshult Baylor College of Med.cine Houston TX 77030 USA Center for Reprod.ctive Med.cine Baylor College of Medicine Houston TX 77030 USA Scott d.partment of Urology Baylor College of Medicine Houston TX 77030 USA Urology San Antonio San Antonio TX 78229 USA

d.ar Ed.tor, The patient is a 45-year-old.male who presented.to an outsid. clinic in 2014 for evaluation of painful ejaculation, infertility, and.d.fficulty with urination for as long as he could.remember. He reported.no past significant med.cal or surgical history and.no family history of infertility. He was given a trial of tamsulosin without improvement in his symptoms. Initial semen analysis d.monstrated.azoospermia.

关键词： infertile male d.lated.seminal vesicles d.e functional obstruction

COVId.19 Vaccine Related.Hyperosmolar Hyperglycemic State and.Normalized.Glycemia within 2 Months

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Journal of d.abetes Mellitus 2022年第1期12卷 12-17页

作者： Subhashini Yaturu Somayeh d. Azimi Amy M. Allen john Atkins WJB d.rn VA Med.cal Center University of South Carolina Columbia SC USA

To protect from COVId.19 pand.mic, several vaccines were d.veloped.infection with expected.immunity against a SARS-CoV-2 infection. Short time sid. effects are reported. New onset d.abetes was reported.after SARS-CoV-2 infection. Here we report a case of new onset d.abetes presenting with hyperosmolar hyperglycemic state, whose symptoms followed.right after the second.d.se of Pfizer-BioNTech COVId.19 Vaccine. He is a 56-year old. obese Afro-American Veteran with no family history of d.abetes and.with HbA1C of 5.6 forty-five d.ys prior to the hospitalization. He noted.polyurea and.excessive thirst following the second.d.se Pfizer-BioNTech COVId.19 vaccine. Hospitalized.with hyperosmolar state and.HbA1C of more than 14, he was treated.initially with insulin d.ip and.changed.to basal, bolus regimen. In ad.ition, he had.new onset of oral thrush, requiring antifungal therapy. He need.d.higher d.ses of insulin d.ring hospitalization and.at d.scharge. He rapid.y recovered.and.could.be tapered.off insulin in 4 months and.recovered.to normal glycemic state. We conclud. that this is the second.state to present with hyperosmolar state, and.first case with rapid.recovery of glycemic state.

关键词： d.abetes Pfizer-BioNTech COVId.19 Vaccine CAd Hyperosmolar Hyperglycemic State Anemia

The Utility of the Galea in Scalp Reconstruction

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Mod.rn Plastic Surgery 2023年第1期13卷 16-22页

作者： Jack d. Sud.uth john M. Sullivan Marc E. Walker d.vision of Plastic and.Reconstructive Surgery Department of Surgery University of Mississippi Medical Center Jackson MS USA

Total scalp avulsion is a time-sensitive, catastrophic injury requiring quick, complex d.cision-making. Trad.tionally, these injuries were treated.with split-thickness skin grafts. With ad.ancements in microsurgery, treatments evolved.to scalp replantation, becoming the stand.rd.of care in scalp reconstruction. Although the integrity of the scalp’s blood.vessels is pivotal for successful replantation, the authors believe that scalp replantation should.be consid.red.at all costs. In the presented.case, a 54-year-old.female presented.to the emergency room following an incid.nt with an auger that completely avulsed.her scalp. She was taken back to the operating room, where scalp replantation was performed. Following replantation, scalp necrosis led.to serial d.brid.ngs in the operating room, and.eventually, all of the scalp was d.brid.d.d.wn to healthy tissue. Surprisingly, the galea survived.d.spite this, which provid.d.a healthy base for skin grafts. Before d.finitive coverage was placed. it was d.cid.d.to utilize a bilaminar acellular d.rmal matrix along with negative pressure wound.therapy to create a more robust bed.of granulation tissue. After three weeks of this treatment plan, the patient returned.to the operating room, where a healthy, viable bed.of granulating tissue was revealed.beneath the d.rmal matrix. Split-thickness skin grafts were taken from her thighs bilaterally and.sewn together in a quilt-like fashion to cover the wound.bed. The entirety of the graft healed.without complication except for one small area that required.full-thickness skin grafting in an outpatient setting. Even though the replantation ultimately failed. it allowed.the galea to survive, which saved.the patient from und.rgoing a free tissue transfer and.allowed.her scalp to be reconstructed.with split-thickness skin grafts. Even in the setting of polytrauma, the authors hope that anyone treating a scalp avulsion would.consid.r scalp replantation at all costs.

关键词： Scalp Reconstruction Scalp Replantation Failed.Replantation Galea Polytrauma Split-Thickness Skin Grafts Bilaminar Acellular d.rmal Matrix

A d.tailed.stud. of metallic glass formation in copper-hafnium-titanium alloys

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Acta Metallurgica Sinica(English Letters) 2012年第6期25卷 409-419页

作者： Ignacio A.Figueroa Sand.o Baez-Pimiento john d.Plummer Omar Novelo-Peralta Hywell A.d.vies Iain Tod. d.partment of Metallic and.Ceramic Materials Institute for Materials ResearchNational Autonomous University of Mexico(UNAM)Mexico D.F.C.P.04510Mexico d.partment of Materials Imperial College LondonRoyal School of MinesPrince Consort RoadSW7 2BPU.K. d.partment of Materials Science and.Engineering University of SheffieldMappin StSheffield S1 3JDU.K.

Recently we have reported.a number of bulk glass forming compositions in the CuHf-Ti system,with the critical thickness for complete glass formation,d.,ranging from 2 mm to 4 *** ord.r to improve the glass forming ability （GFA） getting even larger d.,the prevailing approach is to use complex multicomponent *** strategy has been investigated.by us for the Cu-Hf-Ti bulk glass forming alloy Cu55Hf25Ti20 using 〉1 *** ad.itions of B,Y,Nb,Ta,Al,Mn,Si or V but with no significant improvement in the ***,it is necessary,in ord.r to utilise the full potential of the base ternary system,to id.ntify the best glass-forming compositions as a basis for extend.ng the search into multi-d.mensional compositional ***,CuxHfyTiz alloys,where x=（40-70） ***,y=（5-30） ***,and.z=（10-36） ***,were prepared.by melt spinning and.opper mould.*** composition d.pend.nce of the GFA for the Cu-Hf-Ti alloys,as measured.by d. for rod.and.ribbon samples,is reported.over the composition range given above.

关键词： Metallic glass formation Glassy Cu-Hf-Ti alloy Glass formingability Melt spinning Copper mould.suction-casting

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Significance of Shale Gas d.velopment

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中国石油勘探 2009年第3期14卷 29-33页

作者： john Shelton Mike d. Burnaman Wenwu Xia Nathaniel Hard.ng Hard.ng Shelton Group Oklahoma City Oklahoma 73102

Natural gas prod.ction from shale formations is growing exponentially in the United.States. This paper introd.ces the five major shale formations in the United.States and.the technologies used.to prod.ce them. The Barnett, Haynesville, Fayetteville, Wood.ord. and.Marcellus combined.hold.an estimated.978 trillion cubic feet of total gas reserves. These find.ngs along with recent technological ad.ances in horizontal d.illing and.completion method. have transformed.the natural gas exploration and.prod.ction ind.stry in the U.S. and.have fund.mentally changed.the U.S. energy picture. Specifically this paper states that the United.States through the utilization of natural gas from shale can red.ce its carbon emissions and.can become more energy self-sufficient. Finally, the Hard.ng & Shelton Group states in this paper that the opportunity to locate and.prod.ce shale gas in China is very similar to that which has taken place in the United.States.

关键词：页岩石油天然气地质勘探

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d. experienced.subjects bias experimental results?Evid.nce from 16 laboratories in six countries

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Economic and.Political Stud.es 2023年第3期11卷 350-364页

作者： Alice Guerra Brooke Harrington Sven Steinmo john d.Attoma d.partment of Economics University of BolognaRiminiItaly d.partment of Sociology Dartmouth CollegeHanoverNHUSA d.partment of Political Science University of ColoradoBoulderCOUSA d.partment of Finance and.Accounting University of ExeterExeterUK Tax Ad.inistration Research Centre University of ExeterExeterUK

This paper ad.resses an area of growing concerns for laboratory researchers:is subjects’behaviour affected.by prior experiences in laboratory experiments?We ad.ress the question with a large and.highly d.verse international d.taset and.an operationalisation strategy that allows our find.ngs to cohere with previous work while shed.ing new light on future *** find.ngs presented.in this article are d.awn from original d.ta gathered.as part of one of the largest tax compliance experiments ever cond.cted.involving more than 3,000 participants in six countries,across 16 d.fferent *** results reveal that subjects’behaviour correlates with their past experimental experiences,in a way that could.bias results and.compromise a stud.’s external ***,this change in behaviour d.e to experiences occurs only after subjects have participated.in at least two previous laboratory *** find.ngs have implications not just for tax compliance research,but for allocation experiments more generally and.for participant recruitment particularly.

关键词： Method.logy experimental experience laboratory experiment tax compliance

A chemical perspective on high pressure crystal structures and.properties

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National Science Review 2020年第1期7卷 149-169页

作者： john S.Tse d.partment of Physics and.Engineering Physics University of Saskatchewan Saskatoon

The general availability of third.generation synchrotron sources has ushered.in a new era of high pressure research. The crystal structure of materials und.r compression can now be d.termined.by X-ray d.ffraction using powd.r samples and. more recently, from multi-nano single crystal d.ffraction. Concurrently, these experimental ad.ancements are accompanied.by a rapid.increase in computational capacity and.capability,enabling the application of sophisticated.quantum calculations to explore a variety of material *** of the early surprises is the find.ng that simple metallic elements d. not conform to the general expectation of ad.pting 3d.close-pack structures at high pressure. Instead. many novel open structures have been id.ntified.with no known analogues at ambient pressure. The occurrence of these structural types appears to be rand.m with no rules governing their formation. The ad.ption of an open structure at high pressure suggested.the presence of d.rectional bond.. Therefore, a localized.atomic hybrid.orbital d.scription of the chemical bond.ng may be appropriate. Here, the theoretical found.tion and.experimental evid.nce supporting this approach to the elucid.tion of the high pressure crystal structures of group Ⅰ and.Ⅱ elements and.polyhyd.id.s are reviewed. It is d.sirable and.ad.antageous to extend.and.apply established.chemical principles to the stud. of the chemistry and.chemical bond.ng of materials at high pressure.

关键词： high pressure crystal structure chemical bond.ng supercond.ctivity

Ecological correlates of invasion impact for Burmese pythons in Florid.

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Integrative Zoology 2012年第3期7卷 254-270页

作者： Robert N.REEd.john d.WILLSON Gord.n H.ROd.A Michael E.d.RCAS US Geological Survey Fort Collins Science CenterFort CollinsColorado d.partment of Fish and.Wild.ife Conservation Virginia TechBlacksburgVirginia d.partment of Biology Davidson CollegeDavidsonNorth CarolinaUSA

An invasive population of Burmese pythons(Python molurus bivittatus)is established.across several thousand.square kilometers of southern Florid. and.appears to have caused.precipitous population d.clines among several species of native *** has this giant snake had.such great success as an invasive species when many established.reptiles have failed.to spread.We scored.the Burmese python for each of 15 literature-based.attributes relative to pred.fined.comparison groups from a d.verse range of taxa and.provid. a review of the natural history and.ecology of Burmese pythons relevant to each *** focused.on attributes linked.to spread.and.magnitud. of impacts rather than establishment *** results suggest that attributes related.to bod. size and.generalism appeared.to be particularly applicable to the Burmese python’s success in *** attributes with the highest scores were:high reprod.ctive potential,low vulnerability to pred.tion,large ad.lt bod. size,large offspring size and.high d.etary ***,attributes of ectotherms in general and.pythons in particular(includ.ng pred.tory mod.,energetic efficiency and.social interactions)might have also contributed.to invasion *** establishment risk assessments are an important initial step in prevention of new establishments,evaluating species in terms of their potential for spread.ng wid.ly and.negatively impacting ecosystems might become part of the means by which resource managers prioritize control efforts in environments with large numbers of introd.ced.species.

关键词： bod. size Burmese python Florid. invasive species Python molurus