51
|
Deutsch M, Panageas K, Lassman A, DeAngelis L. Predicting Failure To Taper Steroids in Newly Diagnosed Glioblastoma (P04.184). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p04.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
52
|
Termuhlen AM, Tersak JM, Liu Q, Yasui Y, Stovall M, Weathers R, Deutsch M, Sklar CA, Oeffinger KC, Armstrong G, Robison LL, Green DM. Twenty-five year follow-up of childhood Wilms tumor: a report from the Childhood Cancer Survivor Study. Pediatr Blood Cancer 2011; 57:1210-6. [PMID: 21384541 PMCID: PMC4634648 DOI: 10.1002/pbc.23090] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Accepted: 01/24/2011] [Indexed: 11/11/2022]
Abstract
BACKGROUND Treatment cures over 90% of children with Wilms tumor (WT) who subsequently risk late morbidity and mortality. This study describes the 25-year outcomes of 5-year WT survivors in the Childhood Cancer Survivor Study (CCSS). PROCEDURE The CCSS, a multi-institutional retrospective cohort study, assessed WT survivors (N = 1,256), diagnosed 1970-1986, for chronic health conditions, health status, health care utilization, socioeconomic status, subsequent malignant neoplasms (SMNs), and mortality compared to the US population and a sibling cohort (N = 4,023). RESULTS The cumulative incidence of all and severe chronic health conditions was 65.4% and 24.2% at 25 years. Hazard ratios (HR) were 2.0, 95% confidence interval (CI) 1.8-2.3 for grades 1-4 and 4.7, 95%CI 3.6-6.1 for grades 3 and 4, compared to sibling group. WT survivors reported more adverse general health status than the sibling group (prevalence ratio [PR] 1.7; 95%CI 1.2-2.4), but mental health status, socioeconomic outcome, and health care utilization were similar. The cumulative incidence of SMN was 3.0% (95%CI 1.9-4.0%) and of mortality was 6.1% (95%CI 4.7-7.4%). Radiation exposure increased the likelihood of congestive heart failure (CHF) (no doxorubicin-HR 6.6; 95%CI 1.6-28.3; doxorubicin ≤ 250 mg/m(2) -HR 13.0; 95%CI 1.9-89.7; doxorubicin >250 mg/m(2) -HR 18.3; 95%CI 3.8-88.2), SMN (standardized incidence ratio [SIR] 9.0; 95%CI 3.9-17.7 with and 4.9; 95%CI 1.8-10.6 without doxorubicin) and death. CONCLUSION Long-term survivors of WT treated from 1970 to 1986 are at increased risk of treatment related morbidity and mortality 25 years from diagnosis.
Collapse
|
53
|
Claiser N, Deutsch M, Gillet JM, Lecomte C, Sakiyama H, Tone K, Mattoussi N, Luneau D, Souhassou M. Electron-density studies of magnetic di-nuclear complexes. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311088763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
54
|
Deutsch M, Claiser N, Chumakov Y, Souhassou M, Lecomte C, Pillet S, Gillon B, Gillet JM. Recent progress in joint charge and spin densities refinement. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311079736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
55
|
Tamam L, Ocko BM, Reichert H, Deutsch M. Checkerboard self-patterning of an ionic liquid film on mercury. PHYSICAL REVIEW LETTERS 2011; 106:197801. [PMID: 21668201 DOI: 10.1103/physrevlett.106.197801] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Indexed: 05/30/2023]
Abstract
Å-resolution studies of room temperature ionic liquid (RTIL) interfaces are scarce, in spite of their long-recognized importance for the science and many applications of RTILs. We present an Å-resolution x-ray study of a Langmuir film of an RTIL on mercury. At low (high) coverage [90 (50) Å2/molecule] a mono-(bi)layer of surface-parallel molecules is found. The molecules self-assemble in a lateral ionic checkerboard pattern, unlike the uniform-charge, alternate-ion layers of this RTIL at its bulk-solid interface. A 2D-smectic order is found, with molecules packed in parallel stripes, forming long-range order normal to, but none along, the stripes.
Collapse
|
56
|
Stern C, Mautner E, Deutsch M, Ulrich D, Mayer- Pickel K, Daghofer F, Cervar- Zivkovic M. Sind Frauen nach hypertensiven Schwangerschaftserkrankungen in ihrer Lebensqualität beeinträchtigt? Geburtshilfe Frauenheilkd 2011. [DOI: 10.1055/s-0031-1278601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
57
|
Ocko BM, Hlaing H, Jepsen PN, Kewalramani S, Tkachenko A, Pontoni D, Reichert H, Deutsch M. Unifying interfacial self-assembly and surface freezing. PHYSICAL REVIEW LETTERS 2011; 106:137801. [PMID: 21517421 DOI: 10.1103/physrevlett.106.137801] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Indexed: 05/30/2023]
Abstract
X-ray investigations reveal that the monolayers formed at the bulk alkanol-sapphire interface are densely packed with the surface-normal molecules hydrogen bound to the sapphire. About 30-35 °C above the bulk, these monolayers both melt reversibly and partially desorb. This system exhibits balanced intermolecular and molecule-substrate interactions which are intermediate between self-assembled and surface-frozen monolayers, each dominated by one interaction. The phase behavior is rationalized within a thermodynamic model comprising interfacial interactions, elasticity, and entropic effects. Separating the substrate from the melt leaves the monolayer structurally intact.
Collapse
|
58
|
Kjaer K, Als-Nielsen J, Kenn RM, Böhm C, Tippmann-Krayer P, Peterson IR, Bibo AM, Helm CA, Möhwald H, Leveiller F, Jacquemain D, Weinbach S, Leiserowitz L, Deutsch M. X-ray scattering studies of fatty acid films on water and on Cdcl2
solutions. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.19910460112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
59
|
Deutsch M, Martetschlaeger F, Muenzel D, D'Haese J, Krane M, Bauernschmitt R, Lange R, Bumm R. Combined Spontaneous Contralateral Pneumothorax and Post-Pneumonectomy Mediastinal Shift-Associated Dextrocardia. Thorac Cardiovasc Surg 2011; 59:60-2. [DOI: 10.1055/s-0030-1250202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
60
|
Davis LJ, Deutsch M. Surface plasmon based thermo-optic and temperature sensor for microfluidic thermometry. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2010; 81:114905. [PMID: 21133494 DOI: 10.1063/1.3499238] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report on a noninteracting technique for the thermal characterization of fluids based on surface plasmon resonance interrogation. Using liquid volumes less than 20 μl, we have determined the materials' thermo-optic coefficients with an accuracy of better than 1×10(-5) °C(-1) and demonstrated temperature sensing with an accuracy of 0.03 °C. The apparatus employs a low-power probe laser, requiring only a single wavelength, polarization, and interrogation angle for accurate characterization. The device is particularly suited for precise diagnostics of liquids and gases within microfluidic systems and may also be readily integrated into a variety of lab-on-chip platforms, providing rapid and accurate temperature diagnostics.
Collapse
|
61
|
Soltys KA, Soto-Gutiérrez A, Nagaya M, Baskin KM, Deutsch M, Ito R, Shneider BL, Squires R, Vockley J, Guha C, Roy-Chowdhury J, Strom SC, Platt JL, Fox IJ. Barriers to the successful treatment of liver disease by hepatocyte transplantation. J Hepatol 2010; 53:769-74. [PMID: 20667616 PMCID: PMC2930077 DOI: 10.1016/j.jhep.2010.05.010] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2010] [Revised: 05/24/2010] [Accepted: 05/28/2010] [Indexed: 12/11/2022]
Abstract
Management of patients with hepatic failure and liver-based metabolic disorders is complex and expensive. Hepatic failure results in impaired coagulation, altered consciousness and cerebral function, a heightened risk of multiple organ system failure, and sepsis [1]. Such manifold problems are only treatable today and for the foreseeable future by transplantation. In fact, whole or auxiliary partial liver transplantation is often the only available treatment option for severe, even if transient, hepatic failure. Patients with life-threatening liver-based metabolic disorders similarly require organ transplantation even though their metabolic diseases are typically the result of a single enzyme deficiency, and the liver otherwise functions normally. For all of the benefits it may confer, liver transplantation is not an ideal therapy, even for severe hepatic failure. More than 17,000 patients currently await liver transplantation in the United States, a number that seriously underestimates the number of patients that need treatment [2], as it has been estimated that more than a million patients could benefit from transplantation [3]. Unfortunately, use of whole liver transplantation to treat these disorders is limited by a severe shortage of donors and by the risks to the recipient associated with major surgery [4].
Collapse
|
62
|
Leveiller F, Jacquemain D, Lahav M, Leiserowitz L, Deutsch M, Kjaer K, Als-Nielsen J. Crystallinity of the double layer of cadmium arachidate films at the water surface. Science 2010; 252:1532-6. [PMID: 17834878 DOI: 10.1126/science.252.5012.1532] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
A crystalline counterionic layer at the interface between an electrolyte solution and a charged layer of insoluble amphiphilic molecules was observed with grazing incidence synchrotron x-ray diffraction. Uncompressed arachidic films spread over 10(-3) molar cadmium chloride solution (pH 8.8) spontaneously form crystalline clusters with coherence lengths of approximately 1000 angstroms at 9 degrees C. Ten distinct diffraction peaks were observed, seven of which were attributed to scattering only from a crystalline Cd(2+) layer and the other three to scattering primarily from the arachidate layer. The reflections from the Cd(2+) layer were indexed according to a 2 x 3 supercell of the arachidate lattice with three Cd(2+) ions per cadmium unit cell.
Collapse
|
63
|
Tostmann H, Dimasi E, Shpyrko OG, Pershan PS, Ocko BM, Deutsch M. II. Surface and interfacial phenomena: Surface phases in binary liquid metal alloys: An X-ray study. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19981020913] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
64
|
Roh MS, Colangelo LH, O'Connell MJ, Deutsch M, Wolmark N. Reply to R. Glynne-Jones et al. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.29.2490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
65
|
Termuhlen AM, Tersak JM, Yasui Y, Liu Q, Stovall M, Deutsch M, Sklar CA, Oeffinger KC, Robison LL, Green DM. Chronic medical conditions, health status, and health care practices at 25 years in 5-year survivors of Wilms tumor: A report from the Childhood Cancer Survivor Study. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.9514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
66
|
Elsen A, Murphy BM, Ocko BM, Tamam L, Deutsch M, Kuzmenko I, Magnussen OM. Surface layering at the mercury-electrolyte interface. PHYSICAL REVIEW LETTERS 2010; 104:105501. [PMID: 20366434 DOI: 10.1103/physrevlett.104.105501] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2009] [Indexed: 05/29/2023]
Abstract
X-ray reflectometry reveals atomic layering at a liquid-liquid interface--mercury in a 0.01 M NaF solution. The interface width exceeds capillary wave theory predictions and displays an anomalous dependence on the voltage applied across it, displaying a minimum positive of the potential of zero charge. The latter is explained by electrocapillary effects and an additional intrinsic broadening of the interface profile, tentatively assigned to polarization of the conduction electrons due to the electric field of the electrochemical double layer at the interface.
Collapse
|
67
|
Roh MS, Colangelo LH, O'Connell MJ, Yothers G, Deutsch M, Allegra CJ, Kahlenberg MS, Baez-Diaz L, Ursiny CS, Petrelli NJ, Wolmark N. Preoperative multimodality therapy improves disease-free survival in patients with carcinoma of the rectum: NSABP R-03. J Clin Oncol 2009; 27:5124-30. [PMID: 19770376 DOI: 10.1200/jco.2009.22.0467] [Citation(s) in RCA: 673] [Impact Index Per Article: 44.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Although chemoradiotherapy plus resection is considered standard treatment for operable rectal carcinoma, the optimal time to administer this therapy is not clear. The NSABP R-03 (National Surgical Adjuvant Breast and Bowel Project R-03) trial compared neoadjuvant versus adjuvant chemoradiotherapy in the treatment of locally advanced rectal carcinoma. PATIENTS AND METHODS Patients with clinical T3 or T4 or node-positive rectal cancer were randomly assigned to preoperative or postoperative chemoradiotherapy. Chemotherapy consisted of fluorouracil and leucovorin with 45 Gy in 25 fractions with a 5.40-Gy boost within the original margins of treatment. In the preoperative group, surgery was performed within 8 weeks after completion of radiotherapy. In the postoperative group, chemotherapy began after recovery from surgery but no later than 4 weeks after surgery. The primary end points were disease-free survival (DFS) and overall survival (OS). RESULTS From August 1993 to June 1999, 267 patients were randomly assigned to NSABP R-03. The intended sample size was 900 patients. Excluding 11 ineligible and two eligible patients without follow-up data, the analysis used data on 123 patients randomly assigned to preoperative and 131 to postoperative chemoradiotherapy. Surviving patients were observed for a median of 8.4 years. The 5-year DFS for preoperative patients was 64.7% v 53.4% for postoperative patients (P = .011). The 5-year OS for preoperative patients was 74.5% v 65.6% for postoperative patients (P = .065). A complete pathologic response was achieved in 15% of preoperative patients. No preoperative patient with a complete pathologic response has had a recurrence. CONCLUSION Preoperative chemoradiotherapy, compared with postoperative chemoradiotherapy, significantly improved DFS and showed a trend toward improved OS.
Collapse
|
68
|
Bhatnagar AK, Beriwal S, Heron DE, Flickinger JC, Deutsch M, Huq MS, Sontag M, Shogan J. Initial Outcomes Analysis for Large Multicenter Integrated Cancer Network Implementation of Intensity Modulated Radiation Therapy for Breast Cancer. Breast J 2009; 15:468-74. [DOI: 10.1111/j.1524-4741.2009.00761.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
69
|
Guejes L, Zurgil N, Stambler I, Deutsch M, Gilburd B, Shoenfeld Y. The Influence of Different Cultivating Conditions on Polymorphonuclear Leukocyte Apoptotic Process In Vitro, II: Ultrastructural Characteristics of PMN Populations Incubated with Proteinase 3 Anti-neutrophil Autoantibodies. Ultrastruct Pathol 2009; 29:37-51. [PMID: 15931779 DOI: 10.1080/01913120490897547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The present study shows the effects of proteinase 3 anti-neutrophil cytoplasmic autoantibodies (PR3 ANCA) on polymorphonuclear leukocytes (PMN) apoptotic processes in vitro. The results are part of a generalized morphological analysis of 3 identical experiments on the influence of different cultivating conditions on the apoptotic processes. As controls, the authors use the results on spontaneous PMN apoptosis (Guejes L, Zurgil N, Deutsch M, Gilburd B, Shoenfeld Y. Ultrastruct Pathol. 2003;27: 23-32) and PMN populations incubated with normal human IgG. Interaction of PR3 ANCA with the target antigen proteinase 3 (PR3) is one of the crucial pathogenic factors in Wegener granulomatosis (systemic autoimmune vasculitis). Following 40min and 12h incubation, PMN populations were evaluated by light microscopy, transmission electron microscopy, and immunogold electron microscopy. Twelve-hour cultures, either control or incubated with PR3 ANCA, contained different cell forms ranging from normal cells to cells at the final stages of apoptosis. Neutrophils at the state of complete manifestation of apoptotic phenotype were analyzed and compared. Three morphologically distinct apoptotic cell lines were characteristic for all PMN populations studied, regardless of cultivating conditions. As in spontaneous apoptosis, these cell lines are code-named "first," "second," and "third." The present study has shown, firstly, that in the presence of PR3 ANCA, all 3 apoptotic lines were modified or altered. Secondly, the modifications or alterations of apoptotic cell lines effected by PR3 ANCA are specific for each cell line: the "first" line is characterized by intensification and modification of activation; the "second" by vacuolized cell forms; and the "third" by pronounced lytic alterations of the nuclei, while the cytoplasm is fully identical to that of control cell lines.
Collapse
|
70
|
Kerner H, Deutsch M, Brandes J, Lichtig C. Hyperplastic and atypical changes in adenomyosis coexisting with endometrial adenocarcinoma. J OBSTET GYNAECOL 2009. [DOI: 10.3109/01443618609112296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
71
|
Tamam L, Menahem T, Mastai Y, Sloutskin E, Yefet S, Deutsch M. Langmuir films of chiral molecules on mercury. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:5111-5119. [PMID: 19256463 DOI: 10.1021/la804109h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Homo- and heterochiral Langmuir films of a chiral derivative of stearic acid are studied in situ on the surface of liquid mercury as a function of surface coverage by surface tensiometry and surface-specific synchrotron X-ray diffraction and reflectivity. A transition from a phase of surface-parallel molecules to a phase of standing-up molecules is found. The former shows no surface-parallel long-range order. The standing-up phase of both homochiral and heterochiral compositions exhibit long-range order. However, the former has an oblique unit cell with parallel molecular planes, and the later has a centered rectangular unit cell with a herringbone molecular packing. For both cases, the standing-up molecules are tilted by 44 degrees from the surface normal and pack at a density of 19.5 A(2)/molecule in the plane normal to the molecular long axis. Important differences are found, and discussed, between this behavior and that of a Langmuir film of the nonchiral stearic acid on mercury.
Collapse
|
72
|
Arpesella C, Back HO, Balata M, Bellini G, Benziger J, Bonetti S, Brigatti A, Caccianiga B, Cadonati L, Calaprice F, Carraro C, Cecchet G, Chavarria A, Chen M, Dalnoki-Veress F, D'Angelo D, de Bari A, de Bellefon A, de Kerret H, Derbin A, Deutsch M, di Credico A, di Pietro G, Eisenstein R, Elisei F, Etenko A, Fernholz R, Fomenko K, Ford R, Franco D, Freudiger B, Galbiati C, Gatti F, Gazzana S, Giammarchi M, Giugni D, Goeger-Neff M, Goldbrunner T, Goretti A, Grieb C, Hagner C, Hampel W, Harding E, Hardy S, Hartman FX, Hertrich T, Heusser G, Ianni A, Ianni A, Joyce M, Kiko J, Kirsten T, Kobychev V, Korga G, Korschinek G, Kryn D, Lagomarsino V, Lamarche P, Laubenstein M, Lendvai C, Leung M, Lewke T, Litvinovich E, Loer B, Lombardi P, Ludhova L, Machulin I, Malvezzi S, Manecki S, Maneira J, Maneschg W, Manno I, Manuzio D, Manuzio G, Martemianov A, Masetti F, Mazzucato U, McCarty K, McKinsey D, Meindl Q, Meroni E, Miramonti L, Misiaszek M, Montanari D, Monzani ME, Muratova V, Musico P, Neder H, Nelson A, Niedermeier L, Oberauer L, Obolensky M, Orsini M, Ortica F, Pallavicini M, Papp L, Parmeggiano S, Perasso L, Pocar A, Raghavan RS, Ranucci G, Rau W, Razeto A, Resconi E, Risso P, Romani A, Rountree D, Sabelnikov A, Saldanha R, Salvo C, Schimizzi D, Schönert S, Shutt T, Simgen H, Skorokhvatov M, Smirnov O, Sonnenschein A, Sotnikov A, Sukhotin S, Suvorov Y, Tartaglia R, Testera G, Vignaud D, Vitale S, Vogelaar RB, von Feilitzsch F, von Hentig R, von Hentig T, Wojcik M, Wurm M, Zaimidoroga O, Zavatarelli S, Zuzel G. Direct measurement of the 7Be solar neutrino flux with 192 days of borexino data. PHYSICAL REVIEW LETTERS 2008; 101:091302. [PMID: 18851600 DOI: 10.1103/physrevlett.101.091302] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2008] [Indexed: 05/26/2023]
Abstract
We report the direct measurement of the 7Be solar neutrino signal rate performed with the Borexino detector at the Laboratori Nazionali del Gran Sasso. The interaction rate of the 0.862 MeV 7Be neutrinos is 49+/-3stat+/-4syst counts/(day.100 ton). The hypothesis of no oscillation for 7Be solar neutrinos is inconsistent with our measurement at the 4sigma C.L. Our result is the first direct measurement of the survival probability for solar nu(e) in the transition region between matter-enhanced and vacuum-driven oscillations. The measurement improves the experimental determination of the flux of 7Be, pp, and CNO solar nu(e), and the limit on the effective neutrino magnetic moment using solar neutrinos.
Collapse
|
73
|
Huotari S, Hämäläinen K, Diamant R, Sharon R, Kao CC, Deutsch M. Intrashell electron-interaction-mediated photoformation of hollow atoms near threshold. PHYSICAL REVIEW LETTERS 2008; 101:043001. [PMID: 18764322 DOI: 10.1103/physrevlett.101.043001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2007] [Indexed: 05/26/2023]
Abstract
Double photoionization (DPI) of an atom by a single photon is a direct consequence of electron-electron interactions within the atom. We have measured the evolution of the K-shell DPI from threshold up in transition metals by high-resolution x-ray emission spectroscopy of the Kh alpha hypersatellites, photoexcited by monochromatized synchrotron radiation. The measured evolution of the single-to-double photoionization cross-section ratio with excitation energy was found to be universal. Theoretical fits suggest that near threshold DPI is predominantly a semiclassical knockout effect, rather than the purely quantum-mechanical shake-off observed at the infinite photon energy limit.
Collapse
|
74
|
Li X, Ding C, Yang Y, Smith R, Deutsch M, Beriwal S, Heron D, Huq M. SU-GG-J-26: An Accuracy Improvement of Ultrasound-CT Modality for Ultrasound Guided Prostate IMRT Planning. Med Phys 2008. [DOI: 10.1118/1.2961583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
75
|
Sloutskin E, Huber P, Wolff M, Ocko BM, Madsen A, Sprung M, Schön V, Baumert J, Deutsch M. Dynamics and critical damping of capillary waves in an ionic liquid. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2008; 77:060601. [PMID: 18643206 DOI: 10.1103/physreve.77.060601] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2007] [Revised: 05/02/2008] [Indexed: 05/26/2023]
Abstract
The dynamics of thermal capillary waves (CWs) on an ionic liquid's surface are studied at the transition from propagating to overdamped CWs by x-ray photon correlation spectroscopy. The analysis considers both homodyne and heterodyne contributions, and yields excellent full line-shape experiment-theory agreement for the structure factor. The CWs' Brillouin scattering becomes extinct at a critical temperature Tc JK approximately 10 K above Tc LL , the propagating modes' hydrodynamic limit, in agreement with linear response theory. Surprisingly, the same power law applies at both Tc. The results rule out the presence of a suggested surface dipole layer.
Collapse
|