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Challenging The Boundaries Of Symbolic Computation (With Cd-rom), Proceedings Of The Fifth International Mathematica Symposium

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Photonic Crystal Fibers

2003年

作者： philip Ramsden Peter Mitic

ISBN: (数字)9781848161313

ISBN: (纸本)9781860943638

This volume consists of papers delivered at the International Mathematica Symposium 2003 — an interdisciplinary meeting bringing together users of Mathematica in research and education. It gathers research papers, reports on classroom practice, reports on the use of Mathematica in industry and commerce, and descriptions of fresh *** of contributors: j Nash, S Wolfram, R Maeder, B Buchberger and C McTague.

关键词： Mathematica (Computer program language)

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畅想之星图书光盘版（南通市图书馆镜像）

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光学学报 2003年第S1期23卷 11-12页

作者： William j. Wadsworth jonathan C. Knight William H. Reeves philip St.j. Russell Department of Physics University of Bath Bath BA2 7AY UK.Department of Physics University of Bath Bath BA2 7AY UK.Department of Physics University of Bath Bath BA2 7AY UK.Department of Physics University of Bath Bath BA2 7AY UK.

By offering greatly enhanced control of light compared to conventional step-index structures, photonic crystal fibres are radically improving the performance of linear and nonlinear fibre devices, including gas-Raman ... 详细信息

关键词： PCF of or Photonic Crystal Fibers in

Temperature variable and the efficiency of sperm mediated transfection of HPV16 DNA into cells

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Asian journal of Andrology 2002年第3期4卷 169-173页

作者： Ruslana Kadze philip j.Chan john D.jacobson johannah U.Corselli Alan King Center for Fertility and In Vitro Fertilization Department of Gynecology and Obstetricsand Department of Physiology and PharmacologyLoma Linda University School of MedicineLoma LindaCalifornia 92350USA

Aim:To pretreat sperm at various temperatures before exposure to human papillomavirus(HPV)16 DNA fragments and to assess the efficiency of HPV carrier sperm to transfect cumulus ***:Cumulus cells from follicular aspirates were obtained,pooled and divided into culture dishes containing Sybr Gold-stained HPV DNA carrying sperm that were either pretreated at 4℃,37℃or 40℃(n=5).The cells were incubated in 5%CO_(2) in air mixture at 37℃for 24 *** efficiency of sperm to take up fluorescent HPV DNA was determined at hour *** incubation,cumulus cell viability was assessed using the e0sin method and the percentages of fluorescent cumulus cells ***:Over half of all the cumulus cells became fluorescent with the highest percentage in the 37℃*** pretreated at 4℃had the greatest amount of HPV DNA *** sperm motility was similar for the 3 pretreatment *** were no differences in cumulus viability among the ***:Sperm pretreated at 37℃transferred the greatest amount of fluorescent HPV DNA fragments to the cumulus *** HPV DNA was observed in the nuclear and cytoplasmic *** data suggested the possibility of sperm as a vector for the transmission of HPV DNA to the cumulus cells surrounding ovulated oocytes,which might lead to early implantation failures.

关键词： spermatozoa human papillomavirus gene transfer cumulus fertility

e-VLBI observations of GRB 080409 afterglow with an Australasian radio telescope network

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Research in Astronomy and Astrophysics 2016年第11期16卷 1-6页

作者： Aquib Moin philip G. Edwards Steven j. Tingay Chris j. Phillips Anastasios K. Tzioumis Shaun W. Amy Tao An Mamoru Sekido Zhong-Xiang Wang Physics Department United Arab Emirates University RO. Box 15551 A1-Ain United Arab Emirates Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China International Centre for Radio Astronomy Research Curtin University Bentley WA Australia CSIRO Astronomy and Space Science P.O. Box 76 Epping NSW 2121 Australia Kashima Space Research Center National Institute of Information and Communications Technology (NICT) 893-1 Hirai Kashima 314-0014 Ibaraki Japan Key Laboratory of Radio Astronomy Chinese Academy of Sciences Nanjing 210008 China Osservatorio di Radio Astronomia Istituto Nazionale di Astrofisica Italy

Transcontinental e-VLBI observations were conducted in june 2008 with telescopes in Australia, China and japan. Detections were made of the radio-loud quasar PKS B0727-115, which shows superlu- minal motion, and the intra-day variable quasar PKS B0524＋034. The latter source was used as a phase reference calibrator for observations at the position of the gamma-ray burst GRB 080409, for which an upper limit to the radio emission is set. Australia Telescope Compact Array data were also used to derive a limit on the radio flux density of the GRB afterglow. These observations demonstrate the capability to form a large Australasian radio telescope network for e-VLBI, with data transported and processed in realtime over high capacity networks. This campaign represents the first step towards more regular e-VLBI observations in this region.

关键词： techniques: interferometric -- galaxies: active -- gamma rays: bursts

Glucose transporter 4 can be inserted in the membrane without exposing its catalytic site for photolabeling from the medium

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Science China(Life Sciences) 2007年第2期50卷 147-154页

作者： Manabu ISHIKI philip j BILAN Programme in Cell Biology Hospital for Sick Children Toronto Canada M5G 1×8

Insulin stimulates the production of PI(3,4,5)P3 in muscle cells, and this is required to stimulate GLUT4 fusion with the plasma membrane. Introduction of exogenous PI(3,4,5)P3 to muscle cells recapitulates insulin's effects on GLUT4 fusion with the plasma membrane, but not glucose uptake. This study aims to explore the mechanism behind this difference. In L6-GLUT4myc muscle cells, the availability of the GLUT4 intracellular C-terminus and extracellular myc epitopes for immunoreactivity on plasma membrane lawns was detected with the corresponding antibody. The availability of the active site of GLUT4 from extracellular medium was assessed by affinity photolabeling with the cell impermeant compound Bio-LC-ATB-BMPA. 100nmol/L insulin and 10μmol/L PI(3,4,5)P3 caused myc signal gain on the plasma membrane lawns by 1.64-fold and 1.58-fold over basal, respectively. Insulin, but not PI(3,4,5)P3, increased photolabeling of GLUT4 and immunolabeling with C-terminus antibody by 2.47-fold and 2.04-fold over basal, respectively. Upon insulin stimulation, the C-terminus signal gain was greater than myc signal gain (2.04-fold vs. 1.64-fold over basal, respectively) in plasma membrane lawns. These results indicate that (i) PI(3,4,5)P3 does not make the active site of GLUT4 available from the extracellular surface despite causing GLUT4 fusion with the plasma membrane; (ii) the availability of the active site of GLUT4 from the extracellular medium and availability of the C-terminus from the cytosolic site are correlated; (iii) in addition to stimulating GLUT4 translocation, insulin stimulation displaces a protein which masks the GLUT4 C-terminus. We propose that a protein which masks the C-terminus also prevents the active site from being available for photolabelling and possibly glucose uptake after treatment with PI(3,4,5)P3.

关键词： glucose transport 4 (GLUT4) insulin phosphatidylinositol 3 4 5-trisphosphate (PI(3 4 5)P3) photolabel

Pseudospin-2 in photonic chiral borophene

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Photonics Research 2023年第5期11卷 869-877页

作者： philip MENZ HAISSAM HANAFI DANIEL LEYKAM jÖRG IMBROCK CORNELIA DENZ Institute of Applied Physics University of MuensterMuenster 48149Germany Centre for Quantum Technologies National University of SingaporeSingapore 117543Singapore Physikalisch-Technische Bundesanstalt(PTB) 38116 BraunschweigGermany

Pseudospin is an angular momentum degree of freedom introduced in analogy to the real electron spin in the effective massless Dirac-like equation used to describe wave evolution at conical intersections such as the Dirac cones of ***,we study a photonic implementation of a chiral borophene allotrope hosting a pseudospin-2 conical intersection in its energy-momentum *** presence of this fivefold spectral degeneracy gives rise to quasiparticles with pseudospin up to±*** report on conical diffraction and pseudospin-orbit interaction of light in photonic chiral borophene,which,as a result of topological charge conversion,leads to the generation of highly charged optical phase vortices.

关键词： spectrum chiral momentum

Exceptionally Preserved Conodont Natural Assemblages from the Middle Triassic Luoping Biota,Yunnan Province,China:Implications for Architecture of Conodont Feeding Apparatus

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journal of Earth Science 2023年第6期34卷 1762-1776页

作者： jinyuan Huang Carlos Martinez-Perez Qiyue Zhang Kexin Zhang Mao Luo Wen Wen Changyong Zhou Xiao Min Zhixin Ma Tao Xie Michael j.Benton philip C.j.Donoghue Chengdu Center China Geological Survey(Geosciences Innovation Center of Southwest China)Chengdu 610081China Cavanilles Institute of Biodiversity&Evolutionary Biology University of Valencia46980 ValenciaSpain Institute of Geological Survey China University of GeosciencesWuhan 430074China State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and PaleoenvironmentChinese Academy of SciencesNanjing 210008China School of Earth Sciences and Engineering Nanjing UniversityNanjing 210023China School of Ocean Sciences China University of GeosciencesBeijing 100083China School of Earth Sciences University of BristolBristol BS81TQUK

Articulated natural assemblages contain direct evidence of the element numbers,morphologies,positions and structures for reconstructing the feeding apparatuses of conodont animals,but these kind of materials are very rare in fossil *** we report ten new conodont natural assemblages from Member II of the Guanling Formation in Luoping County,eastern Yunnan Province,southwestern *** assemblages were obtained from the fossil-bearing layers of the Luoping Biota,dated to the early Middle Triassic Anisian stage(Pelsonian substage).These fossiliferous laminated limestones mainly consist of calcites and dolomites,with platy clay minerals and pyrites as subordinate components,indicating that the conodont assemblages were preserved in a lower energy and anoxic sedimentary *** new natural assemblages preserve the primary collapse orientations of the Nicoraella feeding apparatus from the Luoping Biota,showing the relative original positions of the S,M and P elements,that could be further used to refine the architecture of this apparatus in space variable M elements and the position unclear P1 *** previously reported three-dimensional and bilaterally symmetrical fused clusters,we statistically analyze the size of the positional homogenous elements within different sized materials,in particular S4,S3,or S2 elements,indicates that elements ontogenic changes do not affect the apparatus *** of Nicoraella apparatus remains stable in the process of ontogeny,so our reconstructed model is *** is the first time that ample types of materials have been used to restore a conodont apparatus within one genus,namely natural assemblages(articulated and disarticulated),fused clusters(articulated,disarticulated,compressed,and relatively three-dimensional),and abundant discrete elements,*** materials together record the most complete information on architecture in the gondolelloid apparatuses,thus enabling us

关键词： conodont natural assemblage architecture fused cluster size variation limestone MiddleTriassic southwestern China

Stereotactic guidance for navigated percutaneous sacroiliac joint fusion

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The journal of Biomedical Research 2016年第2期30卷 162-167页

作者： Darrin j.Lee Sung-Bum Kim philip Rosenthal Ripul R.Panchal Kee D.Kim Department of Neurological Surgery University of California-Davis Medical Center Department of Neurological Surgery Kyung-Hee Medical Center

Arthrodesis of the sacroiliac joint（SIj） for surgical treatment of SIj dysfunction has regained interest among spine *** techniques described in the literature most often utilize intraoperative fluoroscopy to aid in implant placement;however,image guidance for SIj fusion may allow for minimally invasive percutaneous instrumentation with more precise implant *** the following cases,we performed percutaneous stereotactic navigated sacroiliac instrumentation using O-arm^（？）multidimensional surgical imaging with StealthStation^（？）navigation（Medtronic,***,MN）.Patients were positioned prone and an image-guidance reference frame was placed contralateral to the surgical site.O-arm^（？） integrated with StealthStation^（？） allowed immediate *** skin incision was planned with an image-guidance *** image-guided awl,drill and tap were utilized to choose a starting point and *** titanium cage（s） packed with autograft and/or allograft were then placed.O-arm^（？） image-guidance allowed for implant placement in the SIj with a small skin ***,we could not track the cage depth position with our current system,and in one patient,the SIj cage had to be revised secondary to the anterior breach of sacrum.

关键词： sacroiliac joint arthrodesis technique image guidance

Ammonium Improves Corn Phosphorus Acquisition Through Changes in the Rhizosphere Processes and Root Morphology

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Pedosphere 2019年第4期29卷 534-539页

作者： Elialdo Alves DE SOUZA Natália Rodrigues FERREIRA-ELOY Camila da Silva GRASSMANN Ciro Antonio ROSOLEM philip j.WHITE School of Agronomic Sciences Sao Paulo State University The james Hutton Institute

Dear Editor, Phosphorus (P) deficiency is the most limiting factor in tropical agriculture since most soils in this region are predominantly acids with high-energy P-binding compounds. Therefore, up to 90% of the P applied becomes fixed in soils, which raises environmental concerns and production costs (Syers et al., 2008). Thus, developing strategies to imptove P use efficiency (PUE) is essential to mitigate environmental problems and improve profits. These strategies should consider the soil-root-rhizosphere system because it is the most biochemical active site where nutrient uptake occurs (Hinsinger, 2011).

关键词： Root Morphology Rhizosphere Processes Dear Editor