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Search Results: 1 - 10 of 84396 matches for " W. Vulcan "
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Epidural Blood Patch for Treatment of Postdural Puncture Headache in a Patient with Spinal Fusion and Recent Implantation of Intrathecal Pain Pump  [PDF]
Chistopher J. Burnett,Andrew J. White,Marius D. Vulcan
Open Journal of Anesthesiology (OJAnes) , 2013, DOI: 10.4236/ojanes.2013.33039
Abstract: We present an interesting case report of a 49-year-old female who presented with symptoms of post-dural puncture headache following implantation of an intrathecal pain pump. Her history was complicated by previous multi-level spinal fusion with hardware. The patient was evaluated and felt to be a candidate for epidural blood patch, which she elected to proceed with. Under fluoroscopic guidance epidural blood patch was successfully performed. Immediately following the procedure the patient noted significant improvement in the headache and six hours following the procedure was headache free and remained so at follow up three weeks later.
Epidural Blood Patch for Treatment of Postdural Puncture Headache in a Patient with Spinal Fusion and Recent Implantation of Intrathecal Pain Pump  [PDF]
Chistopher J. Burnett, Andrew J. White, Marius D. Vulcan
Open Journal of Anesthesiology (OJAnes) , 2013, DOI: 10.4236/ojanes.2013.33039
Abstract:

We present an interesting case report of a 49-year-old female who presented with symptoms of post-dural puncture headache following implantation of an intrathecal pain pump. Her history was complicated by previous multi-level spinal fusion with hardware. The patient was evaluated and felt to be a candidate for epidural blood patch, which she elected to proceed with. Under fluoroscopic guidance epidural blood patch was successfully performed. Immediately following the procedure the patient noted significant improvement in the headache and six hours following the procedure was headache free and remained so at follow up three weeks later.

The aerogel threshold Cherenkov detector for the High Momentum Spectrometer in Hall C at Jefferson Lab
R. Asaturyan,R. Ent,H. Fenker,D. Gaskell,G. M. Huber,M. Jones,D. Mack,H. Mkrtchyan,B. Metzger,N. Novikoff,V. Tadevosyan,W. Vulcan,S. Wood
Physics , 2004, DOI: 10.1016/j.nima.2005.04.058
Abstract: We describe a new aerogel threshold Cherenkov detector installed in the HMS spectrometer in Hall C at Jefferson Lab. The Hall C experimental program in 2003 required an improved particle identification system for better identification of pi/K/P, which was achieved by installing an additional threshold Cherenkov counter. Two types of aerogel with n=1.03 and n=1.015 allow one to reach 10^{-3} proton and 10^{-2} kaon rejection in the 1-5 GeV/c momentum range with pion detection efficiency better than 99% (97%). The detector response shows no significant position dependence due to a diffuse light collection technique. The diffusion box was equipped with 16 Photonis XP4572 PMT's. The mean number of photoelectrons in saturation was ~16 and ~8, respectively. Moderate particle identification is feasible near threshold.
Clinical and therapeutical aspects in vulvodynia
Liana Manolache,Vasile Benea,Pavel Vulcan,Justin-Dumitru Diaconu
Clinical Dermatology , 2003,
Abstract: Vulvodynia represents a vulvar discomfort associated with an important psychological impact for the patient. Considered, at a beginning, as a syndrome with plurifactorial etiology, the new vision of vulvodynia relates it only with the cases with no clinical modifications nor cause for the pain. The article presents the two forms of vulvodynia: vulvar vestibulitis and essential (dysaesthetic) vulvodynia with their clinical, paraclinical and therapeutical aspects. The other causes of vulvar pain are also presented for a better differential diagnosis.
x- and xi-scaling of the Nuclear Structure Function at Large x
J. Arrington,C. S. Armstrong,T. Averett,O. K. Baker,L. de Bever,C. W. Bochna,W. Boeglin,B. Bray,R. D. Carlini,G. Collins,C. Cothran,D. Crabb,D. Day,J. A. Dunne,D. Dutta,R. Ent,B. W. Filippone,A. Honegger,E. W. Hughes,J. Jensen,J. Jourdan,C. E. Keppel,D. M. Koltenuk,R. Lindgren,A. Lung,D. J Mack,J. McCarthy,R. D. McKeown,D. Meekins,J. H. Mitchell,H. G. Mkrtchyan,G. Niculescu,I. Niculescu,T. Petitjean,O. Rondon,I. Sick,C. Smith,B. Terburg,W. F. Vulcan,S. A. Wood,C. Yan,J. Zhao,B. Zihlmann
Physics , 2001, DOI: 10.1103/PhysRevC.64.014602
Abstract: Inclusive electron scattering data are presented for ^2H and Fe targets at an incident electron energy of 4.045 GeV for a range of momentum transfers from Q^2 = 1 to 7 (GeV/c)^2. Data were taken at Jefferson Laboratory for low values of energy loss, corresponding to values of Bjorken x greater than or near 1. The structure functions do not show scaling in x in this range, where inelastic scattering is not expected to dominate the cross section. The data do show scaling, however, in the Nachtmann variable \xi. This scaling may be the result of Bloom Gilman duality in the nucleon structure function combined with the Fermi motion of the nucleons in the nucleus. The resulting extension of scaling to larger values of \xi opens up the possibility of accessing nuclear structure functions in the high-x region at lower values of Q^2 than previously believed.
Correlated Strength in Nuclear Spectral Function
D. Rohe,C. S. Armstrong,R. Asaturyan,O. K. Baker,S. Bueltmann,C. Carasco,D. Day,R. Ent,H. C. Fenker,K. Garrow,A. Gasparian,P. Gueye,M. Hauger,A. Honegger,J. Jourdan,C. E. Keppel,G. Kubon,R. Lindgren,A. Lung,D. J. Mack,J. H. Mitchell,H. Mkrtchyan,D. Mocelj,K. Normand,T. Petitjean,O. Rondon,E. Segbefia,I. Sick,S. Stepanyan,L. Tang,F. Tiefenbacher,W. F. Vulcan,G. Warren,S. A. Wood,L. Yuan,M. Zeier,H. Zhu,B. Zihlmann
Physics , 2004, DOI: 10.1103/PhysRevLett.93.182501
Abstract: We have carried out an (e,e'p) experiment at high momentum transfer and in parallel kinematics to measure the strength of the nuclear spectral function S(k,E) at high nucleon momenta k and large removal energies E. This strength is related to the presence of short-range and tensor correlations, and was known hitherto only indirectly and with considerable uncertainty from the lack of strength in the independent-particle region. This experiment confirms by direct measurement the correlated strength predicted by theory.
Nuclear transparency from quasielastic 12C(e,e'p)
D. Rohe,O. Benhar,C. S. Armstrong,R. Asaturyan,O. K. Baker,S. Bueltmann,C. Carasco,D. Day,R. Ent,H. C. Fenker,K. Garrow,A. Gasparian,P. Gueye,M. Hauger,A. Honegger,J. Jourdan,C. E. Keppel,G. Kubon,R. Lindgren,A. Lung,D. J. Mack,J. H. Mitchell,H. Mkrtchyan,D. Mocelj,K. Normand,T. Petitjean,O. Rondon,E. Segbefia,I. Sick,S. Stepanyan,L. Tang,F. Tiefenbacher,W. F. Vulcan,G. Warren,S. A. Wood,L. Yuan,M. Zeier,H. Zhu,B. Zihlmann
Physics , 2005, DOI: 10.1103/PhysRevC.72.054602
Abstract: We studied the reaction 12C(e,e'p) in quasielastic kinematics at momentum transfers between 0.6 and 1.8 (GeV/c)^2 covering the single-particle region. From this the nuclear transparency factors are extracted using two methods. The results are compared to theoretical predictions obtained using a generalization of Glauber theory described in this paper. Furthermore, the momentum distribution in the region of the 1s-state up to momenta of 300 MeV/c is obtained from the data and compared to the Correlated Basis Function theory and the Independent-Particle Shell model.
Determination of the pion charge form factor for Q^2=0.60-1.60 GeV^2
The Fpi-1 collaboration,:,V. Tadevosyan,H. P. Blok,G. M. Huber,D. Abbott,H. Anklin,C. Armstrong,J. Arrington,K. Assamagan,S. Avery,O. K. Baker,C. Bochna,E. J. Brash,H. Breuer,N. Chant,J. Dunne,T. Eden,R. Ent,D. Gaskell,R. Gilman,K. Gustafsson,W. Hinton,H. Jackson,M. K. Jones,C. Keppel,P. H. Kim,W. Kim,A. Klein,D. Koltenuk,M. Liang,G. J. Lolos,A. Lung,D. J. Mack,D. McKee,D. Meekins,J. Mitchell,H. Mkrtchyan,B. Mueller,G. Niculescu I. Niculescu,D. Pitz,D. Potterveld,L. M. Qin,J. Reinhold,I. K. Shin,S. Stepanyan,L. G. Tang,R. L. J. van der Meer,K. Vansyoc,D. Van Westrum,J. Volmer,W. Vulcan,S. Wood,C. Yan,W. -X. Zhao,B. Zihlmann
Physics , 2006, DOI: 10.1103/PhysRevC.75.055205
Abstract: The data analysis for the reaction H(e,e' pi^+)n, which was used to determine values for the charged pion form factor Fpi for values of Q^2=0.6-1.6 GeV^2, has been repeated with careful inspection of all steps and special attention to systematic uncertainties. Also the method used to extract Fpi from the measured longitudinal cross section was critically reconsidered. Final values for the separated longitudinal and transverse cross sections and the extracted values of Fpi are presented.
New measurements of the EMC effect in very light nuclei
J. Seely,A. Daniel,D. Gaskell,J. Arrington,N. Fomin,P. Solvignon,R. Asaturyan,F. Benmokhtar,W. Boeglin,B. Boillat,P. Bosted,A. Bruell,M. H. S. Bukhari,M. E. Christy,B. Clasie,S. Connell,M. Dalton,D. Day,J. Dunne,D. Dutta,L. El Fassi,R. Ent,H. Fenker,B. W. Filippone,H. Gao,C. Hill,R. J. Holt,T. Horn,E. Hungerford,M. K. Jones,J. Jourdan,N. Kalantarians,C. E. Keppel,D. Kiselev,M. Kotulla,C. Lee,A. F. Lung,S. Malace,D. G. Meekins,T. Mertens,H. Mkrtchyan,T. Navasardyan,G. Niculescu,I. Niculescu,H. Nomura,Y. Okayasu,A. K. Opper,C. Perdrisat,D. H. Potterveld,V. Punjabi,X. Qian,P. E. Reimer,J. Roche,V. M. Rodriguez,O. Rondon,E. Schulte,E. Segbefia,K. Slifer,G. R. Smith,V. Tadevosyan,S. Tajima,L. Tang,G. Testa,R. Trojer,V. Tvaskis,W. F. Vulcan,F. R. Wesselmann,S. A. Wood,J. Wright,L. Yuan,X. Zheng
Physics , 2009, DOI: 10.1103/PhysRevLett.103.202301
Abstract: New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from 2H, 3He, 4He, 9Be and 12C for 0.3
Scaling of the F_2 structure function in nuclei and quark distributions at x>1
N. Fomin,J. Arrington,D. B. Day,D. Gaskell,A. Daniel,J. Seely,R. Asaturyan,F. Benmokhtar,W. Boeglin,B. Boillat,P. Bosted,A. Bruell,M. H. S. Bukhari,M. E. Christy,E. Chudakov,B. Clasie,S. H. Connell,M. M. Dalton,D. Dutta,R. Ent,L. El Fassi,H. Fenker,B. W. Filippone,K. Garrow,C. Hill,R. J. Holt,T. Horn,M. K. Jones,J. Jourdan,N. Kalantarians,C. E. Keppel,D. Kiselev,M. Kotulla,R. Lindgren,A. F. Lung,S. Malace,P. Markowitz,P. McKee,D. G. Meekins,T. Miyoshi,H. Mkrtchyan,T. Navasardyan,G. Niculescu,Y. Okayasu,A. K. Opper,C. Perdrisat,D. H. Potterveld,V. Punjabi,X. Qian,P. E. Reimer,J. Roche,V. M. Rodriguez,O. Rondon,E. Schulte,E. Segbefia,K. Slifer,G. R. Smith,P. Solvignon,V. Tadevosyan,S. Tajima,L. Tang,G. Testa,R. Trojer,V. Tvaskis,W. F. Vulcan,C. Wasko,F. R. Wesselmann,S. A. Wood,J. Wright,X. Zheng
Physics , 2010, DOI: 10.1103/PhysRevLett.105.212502
Abstract: We present new data on electron scattering from a range of nuclei taken in Hall C at Jefferson Lab. For heavy nuclei, we observe a rapid falloff in the cross section for $x>1$, which is sensitive to short range contributions to the nuclear wave-function, and in deep inelastic scattering corresponds to probing extremely high momentum quarks. This result agrees with higher energy muon scattering measurements, but is in sharp contrast to neutrino scattering measurements which suggested a dramatic enhancement in the distribution of the `super-fast' quarks probed at x>1. The falloff at x>1 is noticeably stronger in ^2H and ^3He, but nearly identical for all heavier nuclei.
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