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329 results on '"G. Guglielmo"'

301. Direct measurement of the top quark mass by the DØ Collaboration

Author

K. Del Signore, Matthew Jones, S. A. Jerger, L. Magaña-Mendoza, M. Merkin, C. L. Kim, M. Sosebee, Hiroaki Aihara, F. Lobkowicz, T. Rockwell, Iain Alexander Bertram, Michael Rijssenbeek, Y. Ducros, V. N. Evdokimov, D.S. Koltick, P. M. Tuts, G. P. Grim, R. W. Stephens, J. Bantly, Pushpalatha C Bhat, V. A. Bezzubov, A. Leflat, Q. Z. Li-Demarteau, J. P. Negret, R. P. Smith, Michael Shupe, K. Gounder, Robert Hirosky, D. Stewart, Sun Kee Kim, J. Jaques, Ron Lipton, Andrew Brandt, Raymond Brock, Boaz Klima, R. Engelmann, S. N. Gurzhiev, Liu Chen, W. Y. Chen, R. Snihur, W. G. Cobau, M. I. Martin, A. V. Kotwal, Harrison Prosper, R. L. McCarthy, D. Norman, George R. Kalbfleisch, H.E. Miettinen, J. Womersley, B. Lauer, M. A.C. Cummings, V. S. Narasimham, Thomas G Trippe, B. Hoeneisen, E. W. Anderson, S. Willis, J. S. Kang, T. Joffe-Minor, Lee Sawyer, Randy Ruchti, H. E. Fisk, A. A. Mayorov, M. K. Fatyga, G. Steinbrück, Peter Nemethy, K. Streets, M. Roco, R. J. Madaras, D. Karmanov, J. Snow, S. M. Chang, Vipin Bhatnagar, Kenneth Johns, C. S. Mishra, J. M. Guida, D. Hedin, A. Zylberstejn, A. N. Galyaev, G. Eppley, E. G. Zverev, J. McDonald, H. da Motta, J. G.R. Lima, J. F. Bartlett, Haifeng Li, G. Guglielmo, Brajesh C Choudhary, Heriberto Castilla-Valdez, A. S. Ito, J. Solomon, Allen Mincer, Daniel R Claes, H. Ting, Sebastian Grinstein, Y. M. Park, R. Partridge, Meenakshi Narain, S. P. Denisov, Vasken Hagopian, S.A. Kahn, H. Weerts, A. Narayanan, M. Demarteau, M. Chung, P. Padley, J. Sculli, Alexey Volkov, W. E. Cooper, James H Cochran, Lev Dudko, V. Balamurali, Mitchell Wayne, H. Schellman, J. M. Kohli, T. McKibben, Nikos Varelas, M. R. Krishnaswamy, R. K. Shivpuri, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, J. T. Linnemann, Stefan Grünendahl, J. Thompson, Alexander Vorobiev, C. Murphy, R. Jesik, H. S. Mao, S. Fuess, D. L. Adams, Jinhong Yu, B. Gómez, F. Hsieh, Z. H. Zhu, F. Stichelbaut, B. G. Pope, Dhiman Chakraborty, A. Klatchko, Joan A. Guida, M. Tartaglia, Shashikant Dugad, R. Astur, V. Oguri, A. Para, E. Shabalina, Gordon Watts, J. T. White, M. Bhattacharjee, Kaushik De, V. Sirotenko, G. Di Loreto, O. V. Eroshin, Phillip Gutierrez, A. V. Kostritskiy, T. Heuring, S. Mani, Sissel Hansen, R. Madden, D. Denisov, L. Coney, L. Rasmussen, Peter W. Draper, Sharon Hagopian, A. Boehnlein, Sergey Chekulaev, Srinivasan Rajagopalan, Thomas Ferbel, Dan Green, H. L. Melanson, P. Z. Quintas, A. K.A. Maciel, J. Warchol, A. Jonckheere, Stephen Wimpenny, Stephan Linn, Y. Fisyak, J. H. Christenson, G. Wang, Alberto Santoro, N. Oshima, Daria Zieminska, T. Marshall, R. D. Schamberger, Darien Wood, Nicholas John Hadley, R. Piegaia, J. M. Hauptman, Cecilia Elena Gerber, S. Blessing, M. L. Kelly, Scott Snyder, Howard Gordon, E. James, K. C. Frame, O. Ramirez, Jianming Qian, R. Markeloff, I. Adam, P. Rubinov, J. V.D. Wirjawan, K. W. Merritt, B. Pawlik, A. L. Spadafora, V. Manankov, P. Hanlet, Yanwen Liu, L. Lueking, J. Kotcher, Elizabeth Gallas, B. May, G. Finocchiaro, K. Bazizi, N. Graf, B. Gobbi, Anurag Gupta, Jasvinder A. Singh, T. Yasuda, W. Smart, S. Reucroft, P. Bloom, J. A. Wightman, C. Yoshikawa, N. I. Bojko, M. L. Stevenson, A. L. Lyon, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, Shuichi Kunori, H. Piekarz, B. Baldin, P. I. Goncharov, Victor Daniel Elvira, S. Youssef, S. Choi, M. Abolins, A. Sanchez-Hernandez, P. Mooney, Robert Kehoe, N. K. Mondal, H. T. Diehl, H. Singh, P. M. Sood, J. Balderston, J. Ellison, C. K. Jung, R. L. Lander, D. Lincoln, Eunil Won, Marvin Johnson, H. D. Wahl, A. V. Kozelov, Allan G Clark, N.V. Mokhov, P. Gartung, G. E. Forden, A. P. Heinson, P. Yamin, R. E. Hall, J. L. González Solís, C. Klopfenstein, Z. Casilum, D. P. Stoker, T. Huehn, T. Fahland, D. Fein, E. Flattum, R. Hernández-Montoya, Erich Varnes, E. Smith, F. Borcherding, Andrew White, Daniel John Karmgard, P. Grudberg, T. McMahon, Y. E. Gutnikov, N. Sotnikova, J. Krane, J. Kourlas, John Hobbs, E. Oltman, Y. Pischalnikov, Ulrich Heintz, Young-Sang Yu, N. A. Roe, H. Jöstlein, M. M. Baarmand, Sarah Catherine Eno, N. Grossman, C. Cretsinger, Jing Li, Vyacheslav Klyukhin, B. Gibbard, M. Diesburg, D. Casey, M. Strovink, F. Nang, S. Krzywdzinski, K. S. Hahn, D. Owen, V. I. Kochetkov, A. Bross, D. Cutts, Greg Landsberg, J. Tarazi, H. Greenlee, Sanjay K. Banerjee, T. L. Geld, S. Glenn, J. McKinley, D. A. Stoianova, Wagner Carvalho, M. Paterno, K. M. Mauritz, S. Lami, H. Tong, Serban Protopopescu, Gilvan Alves, A. Baden, G. C. Blazey, P.F. Ermolov, Rajendran Raja, R. Yamada, S. H. Ahn, Alexander Belyaev, Orin I. Dahl, F. Landry, John Rutherfoord, V. S. Burtovoi, S. C. Loken, Mary Beth Adams, Brad Abbott, Gervasio Gomez, C. Shaffer, D. Cullen-Vidal, K. Genser, A. Goldschmidt, D. Buchholz, N. N. Biswas, Edilamar Menezes de Oliveira, D. Vititoe, S. Chopra, P. Tamburello, Heng Xu, Anna Goussiou, R. J. Genik, Gregory R Snow, Michael A. Strauss, M. H.G. Souza, P. Yepes, S. Feher, H. E. Montgomery, C. Boswell, A. Zieminski, S. Y. Jun, T. L.T. Thomas, Suman Bala Beri, D. Edmunds, Andre Sznajder, M. D. Peters, N. Amos, L. Oesch, J. Yang, V. M. Podstavkov, M. Fortner, J. Perkins, Emanuela Barberis, J. Z.Y. Jiang, L. T. Goss, E. A. Kozlovski, H. Haggerty, S. Lökös, and N. Parua

Subjects
Physics, Quark, Nuclear and High Energy Physics, Top quark, Particle physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Tevatron, Elementary particle, Fermion, Nuclear physics, High Energy Physics::Experiment, Nuclear Experiment, Bar (unit), Boson, Lepton
Abstract

We determine the top quark mass m{sub t} using t{bar t} pairs produced in the DO/ detector by {radical} (s) =1.8thinspTeV p{bar p} collisions in a 125thinsppb{sup {minus}1} exposure at the Fermilab Tevatron. We make a two constraint fit to m{sub t} in t{bar t}{r_arrow}bW{sup +}{bar b}W{sup {minus}} final states with one {ital W} boson decaying to q{bar q} and the other to e{nu} or {mu}{nu}. Likelihood fits to the data yield m{sub t}(l+jets)=173.3{plus_minus}5.6thinsp(stat)thinsp{plus_minus}thinsp5.5thinsp(s st) GeV/c{sup 2}. When this result is combined with an analysis of events in which both {ital W} bosons decay into leptons, we obtain m{sub t}=172.1{plus_minus}5.2thinsp(stat)thinsp{plus_minus}thinsp4.9thinsp(syst) GeV/c{sup 2}. An alternate analysis, using three constraint fits to fixed top quark masses, gives m{sub t}(l+jets)=176.0{plus_minus}7.9thinsp(stat){plus_minus}thinsp4.8thinsp(syst) GeV/c{sup 2}, consistent with the above result. Studies of kinematic distributions of the top quark candidates are also presented. {copyright} {ital 1998} {ital The American Physical Society}

302. Search for additional neutral gauge bosons

Author

C. K. Jung, N. Parua, D. Edmunds, E. Neis, M. Mudan, Matthew Jones, T. Joffe-Minor, C. Yanagisawa, Andre Sznajder, R. K. Shivpuri, S. P. Denisov, P. Grudberg, B. Lauer, M. A.C. Cummings, B. Hoeneisen, T. McKibben, M. R. Krishnaswamy, H. E. Fisk, Lee Sawyer, M.K. Fatyga, A. N. Galyaev, M. V. S. Rao, F. Hsieh, A. R. Clark, J. Solomon, M. D. Peters, S. Grünendahl, A. Para, Alexander Vorobiev, Sergey Chekulaev, J. Drinkard, Y. M. Park, M. H.G. Souza, S. Igarashi, M. Tartaglia, S.A. Kahn, P. Yepes, W. E. Cooper, L. P. Chen, Q. Z. Li-Demarteau, W. Y. Chen, L. Oesch, Kaushik De, H. E. Montgomery, Daniel R Claes, M. Demarteau, R. E. Avery, Suyong Choi, B. I. Klochkov, George R. Kalbfleisch, Paolo Franzini, V. S. Narasimham, W. X. Gu, I. Adam, P. Rubinov, S. H. Aronson, Randy Ruchti, K. W. Merritt, J. F. Bartlett, A. A. Mayorov, M. K. Fatyga, Yanwen Liu, D. P. Stoker, Andrew White, L. Lueking, P. Yamin, L. Markosky, Joan A. Guida, H. D. Wahl, K. Bazizi, J. Snow, C. S. Mishra, S. Mani, L. Magaña-Mendoza, T. McMahon, Y. E. Gutnikov, A. L. Spadafora, G. Di Loreto, M. L. Kelly, P. I. Goncharov, W. Guryn, Howard Gordon, K. C. Frame, J. Kourlas, O. Ramirez, G. Guglielmo, T. G. Trippe, L. T. Kerth, S. Glenn, J. McKinley, R. Madden, D. Buchholz, S. A. Jerger, L. Rasmussen, D. A. Stoianova, Peter W. Draper, A. Leflat, G. Wang, Alberto Santoro, A. L. Lyon, Shuichi Kunori, P. Tamburello, Wagner Carvalho, Elizabeth Gallas, R. Hatcher, D. Denisov, Heng Xu, W. G. Cobau, M. I. Martin, Raymond Brock, Boaz Klima, John Hobbs, J. Borders, Vasken Hagopian, H. Weerts, Sharon Hagopian, M. Bhattacharjee, Srinivasan Rajagopalan, P. A. Rapidis, Thomas Ferbel, J. M. Hauptman, Cecilia Elena Gerber, D. Norman, B. Gibbard, Gregory R Snow, S. Willis, M. Pang, Dan Green, Lev Dudko, A. K.A. Maciel, M. Abolins, Young-Sang Yu, A. Jonckheere, E. Oltman, R. Hirosky, D. Vititoe, C. Klopfenstein, R. J. Genik, Stephan Linn, Jianming Qian, S. Lami, C. L. Kim, J. Sculli, P. Mooney, J. Z.Y. Jiang, N. Oshima, P.F. Ermolov, Hiroaki Aihara, T. L. Taylor, N. K. Mondal, Daria Zieminska, R. D. Schamberger, P. R.G. Virador, R. W. Stephens, H. T. Diehl, A. Smith, A. Boehnlein, J. F. Lebrat, D. Pušeljić, C. Boswell, D. Stewart, S. N. Gurzhiev, S. Abachi, P. M. Sood, S. Fuess, R. Hernández-Montoya, S. Banerjee, V. S. Burtovoi, Stephen Wimpenny, W. Smart, K. A. Johns, H. Johari, V. Balamurali, L. T. Goss, J. Ellison, Heriberto Castilla-Valdez, G. Finocchiaro, N. Sotnikova, Suman Bala Beri, B. G. Pope, J. Krane, T. Marshall, R. Snihur, N. Varelas, Darien Wood, Nicholas John Hadley, Gordon Watts, R. J. Madaras, V. Sirotenko, S. Blessing, Scott Snyder, S. M. Chang, O. V. Eroshin, N. Denisenko, S. Reucroft, R. Markeloff, E. Shabalina, J. T. White, Quing Zhu, Phillip Gutierrez, E. Amidi, J. V.D. Wirjawan, E. A. Kozlovski, J. R. T. de Mello Neto, C. Yoshikawa, J. Featherly, V. Glebov, RC Bhat, Marvin Johnson, A. V. Kozelov, Dhiman Chakraborty, H. Haggerty, S. Lökös, S. Fahey, C. Cretsinger, M. Strovink, E. James, Gilvan Alves, V. Oguri, J. S. Kang, S. C. Loken, M. L. Stevenson, N. Amos, J. Yang, V. M. Podstavkov, M. Fortner, J. Perkins, V. A. Bezzubov, J. P. Negret, R. P. Smith, Michael Shupe, Harrison Prosper, J. M. Guida, D. Hedin, F. Lobkowicz, T. Rockwell, Iain Alexander Bertram, R. L. Dixon, Michael Rijssenbeek, V. N. Evdokimov, J. Warchol, D.S. Koltick, S. Youssef, A. Sanchez-Hernandez, Robert Kehoe, J. Balderston, D. Lincoln, Eunil Won, B. Baldin, Y. Ducros, Victor Daniel Elvira, P. Bloom, J. A. Wightman, N. I. Bojko, K. Streets, Vipin Bhatnagar, R. Partridge, E. Flattum, G. Griffin, C. H. Park, H. S. Mao, D. L. Adams, J. S. Hoftun, J. N. Butler, P. D. Grannis, H. Piekarz, G. Álvarez, J. Kotcher, O. I. Dahl, N. Graf, H. L. Melanson, P. Z. Quintas, Y. Fisyak, J. H. Christenson, M. Chung, B. May, B. Gobbi, Jasvinder A. Singh, H. Johnstad, T. Yasuda, C. Murphy, R. Astur, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, J. Li, T. Fahland, T. Heuring, J. T. Linnemann, J. Wilcox, M. Goforth, D. Casey, A. Bross, Jinhong Yu, H. Tong, Rajendran Raja, A. Klatchko, Brad Abbott, J. Jaques, Ron Lipton, S. Feher, J. Womersley, Nikolai Mokhov, A. Zieminski, Brajesh C Choudhary, T. Huehn, D. Fein, Erich Varnes, J. M. De Miranda, G. Eppley, Soon Yung Jun, H. da Motta, J. G.R. Lima, N. Grossman, A. S. Ito, Pm Tuts, G. E. Forden, A. P. Heinson, A. Bischoff, J. F. Glicenstein, A. V. Kostritskiy, Sissel Hansen, F. Nang, R. E. Hall, J. L. González Solís, M. Nicola, S. Krzywdzinski, P. Padley, Alexey Volkov, James H Cochran, R. L. McCarthy, Mitchell Wayne, V. I. Kochetkov, H. Schellman, J. M. Kohli, J. Thompson, B. Gómez, Z. H. Zhu, Shashikant Dugad, A. Zylberstejn, Peter Nemethy, Sun Kee Kim, H. Greenlee, E. W. Anderson, Serban Protopopescu, Allen Mincer, Alexander Belyaev, Gervasio Gomez, E. G. Zverev, D. Nešić, C. Shaffer, D. Cullen-Vidal, K. Genser, A. Goldschmidt, Haifeng Li, N. N. Biswas, J. Bendich, S. Chopra, Y. Pischalnikov, Ulrich Heintz, H. Jöstlein, H. Ting, M. Diesburg, D. Owen, J. Tarazi, Meenakshi Narain, A. Peryshkin, A. Narayanan, M. Sosebee, J. Alitti, J. Bantly, Andrew Brandt, R. Engelmann, H.E. Miettinen, K. S. Hahn, D. Cutts, Greg Landsberg, T. L. Geld, Natalie A. Roe, M. Paterno, A. Baden, H. Tao, G. C. Blazey, R. Yamada, S. H. Ahn, John Rutherfoord, Mary Beth Adams, James C. Green, F. Borcherding, M. M. Baarmand, Sarah Catherine Eno, Vyacheslav Klyukhin, and Ying Li

Subjects
Quark, Physics, Nuclear and High Energy Physics, Gauge boson, Particle physics, High Energy Physics::Phenomenology, Tevatron, law.invention, Standard Model, Nuclear physics, law, High Energy Physics::Experiment, Fermilab, Collider, Boson, Lepton
Abstract

We have searched for a heavy neutral gauge boson, Z ′, using the decay channel Z ′ → ee . The data were collected with the DO detector at the Fermilab Tevatron during the 1992–1993 p p collider run at s =1.8 TeV from an integrated luminosity of 15±1 pb −1 . Limits are set on the cross section times brancing ratio for the process p p → Z′ → ee as a function of the Z ′ mass. We exclude the existence of a Z ′ of mass less than 490 GeV/c 2 , assuming a Z ′ with the same coupling strengths to quarks and leptons as the standard model Z boson.

305. Quecksilberluftpumpen

Author

A. Santel, G. Guglielmo, and Fred J. Smith

Subjects
Biochemistry, Analytical Chemistry
Published
1895

306. Preparation of CF3COCl: investigation of operating parameters

Author

Lino Conte, L. Marangoni, and G. Guglielmo

Subjects
Inorganic Chemistry, Chromatography, Chemistry, Molar ratio, Organic Chemistry, Analytical chemistry, Environmental Chemistry, Physical and Theoretical Chemistry, Biochemistry, Catalysis
Abstract

The preparation of CF 3 COCl through reaction between CF 3 CCl 3 and SO 3 was investigated with particular reference to the following operating parameters: catalyst type and concentration, molar ratio C 2 Cl 3 F 3 /SO 3 and composition of the isomeric mixture CF 3 CCl 3 /CClF 2 CCl 2 F. Such preparation was first investigated either batchwise or semi-continuously, in order to define at best the above parameters. It was then effected continuously on proper equipment, which allowed to separate the CF 3 COCl at a degree of purity adequate to its direct use in the preparation of trifluoroacetic compounds.

Published
1980

308. Einige neue Formen von Quecksilberbarometern

Author

G. Guglielmo

Subjects
Engineering, business.industry, Library science, Analytical Chemistry (journal), business, Biochemistry, Analytical Chemistry
Published
1895

310. The case for energy harvesting on wildlife in flight.

Author

Michael W Shafer, J Ryan Shipley, Ephrahim Garcia, Christopher G Guglielmo, David Winkler, and Robert MacCurdy

Abstract

The confluence of advancements in microelectronic components and vibrational energy harvesting has opened the possibility of remote sensor units powered solely from the motion of their hosts. There are numerous applications of such systems, including the development of modern wildlife tracking/data-logging devices. These ‘bio-logging’ devices are typically mass-constrained because they must be carried by an animal. Thus, they have historically traded scientific capability for operational longevity due to restrictions on battery size. Recently, the precipitous decrease in the power requirements of microelectronics has been accompanied by advancements in the area of piezoelectric vibrational energy harvesting. These energy harvesting devices are now capable of powering the type of microelectronic circuits used in bio-logging devices. In this paper we consider the feasibility of employing these vibrational energy harvesters on flying vertebrates for the purpose of powering a bio-logging device. We show that the excess energy available from birds and bats could be harvested without adversely affecting their overall energy budget. We then present acceleration measurements taken on flying birds in a flight tunnel to understand modulation of flapping frequency during steady flight. Finally, we use a recently developed method of estimating the maximum power output from a piezoelectric energy harvester to determine the amount of power that could be practically harvested from a flying bird. The results of this analysis show that the average power output of a piezoelectric energy harvester mounted to a bird or bat could produce more than enough power to run a bio-logging device. We compare the power harvesting capabilities to the energy requirements of an example system and conclude that vibrational energy harvesting on flying birds and bats is viable and warrants further study, including testing. [ABSTRACT FROM AUTHOR]

Published
2015
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311. Production management software for the CMS data challenge

Author

Andreeva, J., Darmenov, N., Lefebure, V., Garcia-Abia, Pablo, Anzar, A., Graham, G., Gerald Guglielmo, Ratnikova, N., Fanfani, A., Grandi, C., Wildish, T., J. Andreeva, N. Darmenov, V. Lefebure, P. Garcia-Abia, A. Anzar, G. Graham, G. Guglielmo, N. Ratnikova, A. Fanfani, C. Grandi, and T. Wildish

Subjects
Computing and Computers

312. Amphiphilic cyclodextrins as nanocarriers of genistein: A spectroscopic investigation pointing out the structural properties of the host/drug complex system.

Author

Stancanelli R, Guardo M, Cannavà C, Guglielmo G, Ficarra P, Villari V, Micali N, and Mazzaglia A

Subjects
Anticarcinogenic Agents chemistry, Genistein chemistry, Light, Scattering, Radiation, Spectrophotometry, Anticarcinogenic Agents administration & dosage, Cyclodextrins chemistry, Drug Carriers chemistry, Genistein administration & dosage
Abstract

Nanoggregates of nonionic amphiphilic cyclodextrin (ACyD) modified with hydrophobic chains of intermediate length [(2-oligo-ethyleneoxide-6-hexylthio)-beta-CyD, SC6OH] were prepared by emulsification-diffusion method. They are able to entrap an isoflavone, genistein (Gen), and the complexed species are studied at different host/guest molar ratio. The increased isoflavone solubility in the presence of the aggregates of SC6OH is investigated by UV-Vis spectroscopy, whereas size, charge, and structure of aggregates and their complexes with Gen are measured by means of static and quasi-elastic light scattering, and electrophoretic mobility measurements. On the other hand, preparing samples by the conventional method used for liposomes (hydration of an organic film of SC6OH and sonication) gives rise to aggregates with different sizes and lower colloidal stability. It is shown that the improved stability in water of ACyD aggregates both in the absence and in the presence of Gen, obtained by emulsification-diffusion is due to the existence of nanodomains of organic solvent (R(H) congruent with 120 nm) which cannot be completely removed by evaporation and freeze-drying and in which host/guest complexes are contained. This result shows that residues of organic solvent from preparation step favor the colloidal stability of the aggregate, but their presence must be taken into account in designing systems for drug delivery., ((c) 2010 Wiley-Liss, Inc. and the American Pharmacists Association)

Published
2010
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313. Effects of phytoestrogenic isoflavones from red clover (Trifolium pratense L.) on experimental osteoporosis.

Author

Occhiuto F, Pasquale RD, Guglielmo G, Palumbo DR, Zangla G, Samperi S, Renzo A, and Circosta C

Subjects
Animals, Body Weight drug effects, Bone Density drug effects, Bone Resorption drug therapy, Disease Models, Animal, Female, Femur anatomy & histology, Femur drug effects, Isoflavones chemistry, Isoflavones pharmacology, Plant Extracts chemistry, Plant Extracts therapeutic use, Rats, Rats, Sprague-Dawley, Rats, Wistar, Tibia drug effects, Tibia physiology, Vaginal Smears, Isoflavones therapeutic use, Osteoporosis drug therapy, Phytotherapy, Trifolium chemistry
Abstract

The most common type of osteoporosis is bone loss associated with ovarian hormone deficiency at menopause. There is evidence that diets which contain high levels of phytoestrogenic isoflavones are associated with a low incidence of osteoporosis and menopausal symptoms. Plant extracts, which contain high levels of isoflavones, such as Red clover (Trifolium pratense L.), have been used to reduce menopausal symptoms. The objective of this study was to evaluate the preventive effects of Red clover total isoflavones on the progression of bone loss induced by estrogens deficiency (ovariectomy) in rats. Bilateral ovariectomy was performed on female Wistar rats. One week after the operation the rats were treated with an oral dose of 20 and 40 mg of total isoflavones daily for 14 weeks. The results from this study showed that the ovariectomy reduced bone mineral content, femoral weight, femoral density, mechanical strength of the tibia and increased the levels of bone specific alkaline phosphatase in the serum and the number of osteoclasts in the femur sections compared with sham operated controls. Treatment with isoflavones significantly increased bone mineral content, mechanical strength of the tibia, femoral weight, femoral density and prevented the rise of serum alkaline phosphatase levels. In addition, the treatment with isoflavones significantly reduced the number of osteoclasts compared with the ovariectomized control rats. These findings suggest that Red clover isoflavones are effective in reducing bone loss induced by ovariectomy, probably by reducing of the bone turnover via inhibition of bone resorption., (Copyright (c) 2006 John Wiley & Sons, Ltd.)

Published
2007
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314. Comparative photodegradation studies on 3-hydroxyflavone: influence of different media, pH and light sources.

Author

Tommasini S, Calabrò ML, Donato P, Raneri D, Guglielmo G, Ficarra P, and Ficarra R

Subjects
Biotransformation, Flavonoids chemistry, Flavonoids metabolism, Hydrogen-Ion Concentration, Photolysis drug effects, Photolysis radiation effects, Flavonoids radiation effects, Pharmaceutical Solutions pharmacology, Ultraviolet Rays adverse effects
Abstract

3-Hydroxyflavone (3-OH-F) photochemistry in solution has been rationalized in terms of an excited state intramolecular proton transfer (ESIPT), which involves the free 3-hydroxy group interacting with the ortho-carbonyl. This photo-rearrangement occurs rapidly and is strongly influenced by the physico-chemical properties of the solvent, which plays an essential role in determining whether a photo-oxidation or a photo-induced molecular rearrangement takes place. 3-OH-F photoreactivity has been deeply investigated and the related mechanisms elucidated, as affected by various solvents, pH values and irradiation wavelengths, leading to different photodegradation rates and pathways. Moreover, the influence of molecular encapsulation upon alpha- and beta-cyclodextrins (alpha- and beta-CyD) on the molecule photoreactivity has been examined, as a potential tool for increasing molecule photostability as well as minimizing photoinduced toxic effects on biosubstrates.

Published
2004
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315. Measurement of decay parameters for Xi- --> Lambda pi- decay.

Author

Chakravorty A, Diehl HT, Duryea J, Guglielmo G, Heller K, Ho PM, James C, Johns K, Kaplan DM, Longo MJ, Luk KB, Rameika R, Rubin HA, Teige S, Thomson GB, and Zou Y

Abstract

Based on 1.35 x 10(6) polarized Xi(-) events, we measure the parameter phi(Xi) to be -1.61 degrees +/-2.66 degrees +/-0.37 degrees for the Xi(-)-->Lambda pi(-) decay. New results for the parameters beta(Xi) and gamma(Xi) are also presented. Assuming that the CP-violating phase difference is negligible, we deduce the strong phase difference between the P-wave and S-wave amplitudes of the Lambda pi final state to be 3.17 degrees +/-5.28 degrees +/-0.73 degrees, reducing the uncertainty in estimating the level of CP violation in Xi-hyperon decay.

Published
2003
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316. Search for direct CP violation in nonleptonic decays of charged Xi and lambda hyperons

Author

Luk KB, Diehl HT, Duryea J, Guglielmo G, Heller K, Ho PM, James C, Johns K, Longo MJ, Rameika R, Teige S, Thomson GB, and Zou Y

Abstract

A search for direct CP violation in the nonleptonic decays of hyperons has been performed. In comparing the product of the decay parameters, alpha(Xi)alpha(Lambda), in terms of an asymmetry parameter, A(XiLambda), between hyperons and antihyperons in the charged Xi-->Lambdapi and Lambda-->ppi decay sequence, we found no evidence of direct CP violation. The parameter A(XiLambda) was measured to be 0.012+/-0.014.

Published
2000
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317. Probing Balitsky-Fadin-Kuraev-Lipatov dynamics in the dijet cross section at large rapidity intervals in pp collisions at sqrt[s]=1800 and 630 GeV.

Author

Abbott B, Abolins M, Abramov V, Acharya BS, Adams DL, Adams M, Akimov V, Alves GA, Amos N, Anderson EW, Baarmand MM, Babintsev VV, Babukhadia L, Baden A, Baldin B, Banerjee S, Bantly J, Barberis E, Baringer P, Bartlett JF, Bassler U, Bean A, Belyaev A, Beri SB, Bernardi G, Bertram I, Bezzubov VA, Bhat PC, Bhatnagar V, Bhattacharjee M, Blazey G, Blessing S, Boehnlein A, Bojko NI, Borcherding F, Brandt A, Breedon R, Briskin G, Brock R, Brooijmans G, Bross A, Buchholz D, Buescher V, Burtovoi VS, Butler JM, Carvalho W, Casey D, Casilum Z, Castilla-Valdez H, Chakraborty D, Chan KM, Chekulaev SV, Chen W, Cho DK, Choi S, Chopra S, Choudhary BC, Christenson JH, Chung M, Claes D, Clark AR, Cobau WG, Cochran J, Coney L, Connolly B, Cooper WE, Coppage D, Cullen-Vidal D, Cummings MA, Cutts D, Dahl OI, Davis K, De K, Del Signore K, Demarteau M, Denisov D, Denisov SP, Diehl HT, Diesburg M, Di Loreto G, Draper P, Ducros Y, Dudko LV, Dugad SR, Dyshkant A, Edmunds D, Ellison J, Elvira VD, Engelmann R, Eno S, Eppley G, Ermolov P, Eroshin OV, Estrada J, Evans H, Evdokimov VN, Fahland T, Feher S, Fein D, Ferbel T, Fisk HE, Fisyak Y, Flattum E, Fleuret F, Fortner M, Frame KC, Fuess S, Gallas E, Galyaev AN, Gartung P, Gavrilov V, Genik RJ Jr, Genser K, Gerber CE, Gershtein Y, Gibbard B, Gilmartin R, Ginther G, Gobbi B, Gómez B, Gómez G, Goncharov PI, González Solís JL, Gordon H, Goss LT, Gounder K, Goussiou A, Graf N, Grannis PD, Green JA, Greenlee H, Grinstein S, Grudberg P, Grünendahl S, Guglielmo G, Gupta A, Gurzhiev SN, Gutierrez G, Gutierrez P, Hadley NJ, Haggerty H, Hagopian S, Hagopian V, Hahn KS, Hall RE, Hanlet P, Hansen S, Hauptman JM, Hays C, Hebert C, Hedin D, Heinson AP, Heintz U, Heuring T, Hirosky R, Hobbs JD, Hoeneisen B, Hoftun JS, Ito AS, Jerger SA, Jesik R, Joffe-Minor T, Johns K, Johnson M, Jonckheere A, Jones M, Jöstlein H, Jun SY, Juste A, Kahn S, Kajfasz E, Karmanov D, Karmgard D, Kehoe R, Kim SK, Klima B, Klopfenstein C, Knuteson B, Ko W, Kohli JM, Kostritskiy AV, Kotcher J, Kotwal AV, Kozelov AV, Kozlovsky EA, Krane J, Krishnaswamy MR, Krzywdzinski S, Kubantsev M, Kuleshov S, Kulik Y, Kunori S, Landsberg G, Leflat A, Lehner F, Li J, Li QZ, Lima JG, Lincoln D, Linn SL, Linnemann J, Lipton R, Lu JG, Lucotte A, Lueking L, Lundstedt C, Maciel AK, Madaras RJ, Manankov V, Mani S, Mao HS, Markeloff R, Marshall T, Martin MI, Martin RD, Mauritz KM, May B, Mayorov AA, McCarthy R, McDonald J, McKibben T, McMahon T, Melanson HL, Merkin M, Merritt KW, Miao C, Miettinen H, Mihalcea D, Mincer A, Mishra CS, Mokhov N, Mondal NK, Montgoemry HE, Mostafa M, da Motta H, Nagy E, Nang F, Narain M, Narasimham VS, Neal HA, Negret JP, Negroni S, Norman D, Oesch L, Oguri V, Olivier B, Oshima N, Padley P, Pan LJ, Para A, Parashar N, Partridge R, Parua N, Paterno M, Patwa A, Pawlik B, Perkins J, Peters M, Piegaia R, Piekarz H, Pope BG, Popkov E, Prosper HB, Protopopescu S, Qian J, Quintas PZ, Raja R, Rajagopalan S, Reay NW, Reucroft S, Rijssenbeek M, Rockwell T, Roco M, Rubinov P, Ruchti R, Rutherfoord J, Santoro A, Sawyer L, Schamberger RD, Schellman H, Schwartzman A, Sculli J, Sen N, Shabalina E, Shankar HC, Shivpuri RK, Shpakov D, Shupe M, Sidwell RA, Singh H, Singh JB, Sirotenko V, Slattery P, Smith E, Smith RP, Snihur R, Snow GR, Snow J, Snyder S, Solomon J, Song XF, Sorín V, Sosebee M, Sotnikova N, Souza M, Stanton NR, Steinbrück G, Stephens RW, Stevenson ML, Stichelbaut F, Stoker D, Stolin V, Stoyanova DA, Strauss M, Streets K, Strovink M, Stutte L, Sznajder A, Tarazi J, Taylor W, Tentindo-Repond S, Thomas TL, Thompson J, Toback D, Trippe TG, Turcot AS, Tuts PM, van Gemmeren P, Vaniev V, Varelas N, Volkov AA, Vorobiev AP, Wahl HD, Wang H, Warchol J, Watts G, Wayne M, Weerts H, White A, White JT, Whiteson D, Wightman JA, Willis S, Wimpenny SJ, Wirjawan JV, Womersley J, Wood DR, Yamada R, Yamin P, Yasuda T, Yip K, Youssef S, Yu J, Yu Z, Zanabria M, Zheng H, Zhou Z, Zhu ZH, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG, and Zylberstejn A

Abstract

Inclusive dijet production at large pseudorapidity intervals (Deltaeta) between the two jets has been suggested as a regime for observing Balitsky-Fadin-Kuraev-Lipatov (BFKL) dynamics. We have measured the dijet cross section for large Deltaeta in pp collisions at sqrt[s]=1800 and 630 GeV using the D0 detector. The partonic cross section increases strongly with the size of Deltaeta. The observed growth is even stronger than expected on the basis of BFKL resummation in the leading logarithmic approximation. The growth of the partonic cross section can be accommodated with an effective BFKL intercept of alphaBFKL(20 GeV)=1.65+/-0.07.

Published
2000
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318. Measurement of the W-->taunu production cross section in pp collisions at square root s=1.8 TeV.

Author

Abbott B, Abolins M, Abramov V, Acharya BS, Adams DL, Adams M, Ahn S, Akimov V, Alves GA, Amos N, Anderson EW, Baarmand MM, Babintsev VV, Babukhadia L, Baden A, Baldin B, Banerjee S, Bantly J, Barberis E, Baringer P, Bartlett JF, Bassler U, Belyaev A, Beri SB, Bernardi G, Bertram I, Bezzubov VA, Bhat PC, Bhatnagar V, Bhattacharjee M, Blazey G, Blessing S, Boehnlein A, Bojko NI, Borcherding F, Brandt A, Breedon R, Briskin G, Brock R, Brooijmans G, Bross A, Buchholz D, Buescher V, Burtovoi VS, Butler JM, Carvalho W, Casey D, Casilum Z, Castilla-Valdez H, Chakraborty D, Chan KM, Chekulaev SV, Chen W, Cho DK, Choi S, Chopra S, Choudhary BC, Christenson JH, Chung M, Claes D, Clark AR, Cobau WG, Cochran J, Coney L, Connolly B, Cooper WE, Coppage D, Cullen-Vidal D, Cummings MA, Cutts D, Dahl OI, Davis K, De K, Del Signore K, Demarteau M, Denisov D, Denisov SP, Diehl HT, Diesburg M, Di Loreto G, Draper P, Ducros Y, Dudko LV, Dugad SR, Dyshkant A, Edmunds D, Ellison J, Elvira VD, Engelmann R, Eno S, Eppley G, Ermolov P, Eroshin OV, Estrada J, Evans H, Evdokimov VN, Fahland T, Feher S, Fein D, Ferbel T, Fisk HE, Fisyak Y, Flattum E, Fleuret F, Fortner M, Frame KC, Fuess S, Gallas E, Galyaev AN, Gartung P, Gavrilov V, Genik RJ Jr, Genser K, Gerber CE, Gershtein Y, Gibbard B, Gilmartin R, Ginther G, Gobbi B, Gómez B, Gómez G, Goncharov PI, González Solís JL, Gordon H, Goss LT, Gounder K, Goussiou A, Graf N, Grannis PD, Green DR, Green JA, Greenlee H, Grinstein S, Grudberg P, Grünendahl S, Guglielmo G, Gupta A, Gurzhiev SN, Gutierrez G, Gutierrez P, Hadley NJ, Haggerty H, Hagopian S, Hagopian V, Hahn KS, Hall RE, Hanlet P, Hansen S, Hauptman JM, Hays C, Hebert C, Hedin D, Heinson AP, Heintz U, Heuring T, Hirosky R, Hobbs JD, Hoeneisen B, Hoftun JS, Hsieh F, Ito AS, Jerger SA, Jesik R, Joffe-Minor T, Johns K, Johnson M, Jonckheere A, Jones M, Jöstlein H, Jun SY, Kahn S, Kajfasz E, Karmanov D, Karmgard D, Kehoe R, Kim SK, Klima B, Klopfenstein C, Knuteson B, Ko W, Kohli JM, Koltick D, Kostritskiy AV, Kotcher J, Kotwal AV, Kozelov AV, Kozlovsky EA, Krane J, Krishnaswamy MR, Krzywdzinski S, Kubantsev M, Kuleshov S, Kulik Y, Kunori S, Landsberg G, Leflat A, Lehner F, Li H, Li J, Li QZ, Lima JG, Lincoln D, Linn SL, Linnemann J, Lipton R, Lu JG, Lucotte A, Leuking L, Lundstedt C, Maciel AK, Madaras RJ, Manankov V, Mani S, Mao HS, Markeloff R, Marshall T, Martin MI, Martin RD, Mauritz KM, May B, Mayorov AA, McCarthy R, McDonald J, McKibben T, McMahon T, Melanson HL, Merkin M, Merritt KW, Miao C, Miettinen H, Mincer A, Mishra CS, Mokhov N, Mondal NK, Montgomery HE, Mostafa M, da Motta H, Nagy E, Nang F, Narain M, Narasimham VS, Neal HA, Negret JP, Negroni S, Norman D, Oesch L, Oguri V, Olivier B, Oshima N, Owen D, Padley P, Para A, Parashar N, Partridge R, Parua N, Paterno M, Patwa A, Pawlik B, Perkins J, Peters M, Piegaia R, Piekarz H, Pischalnikov Y, Pope BG, Popkov E, Prosper HB, Protopopescu S, Qian J, Quintas PZ, Raja R, Rajagopalan S, Reay NW, Reucroft S, Rijssenbeek M, Rockwell T, Roco M, Rubinov P, Ruchti R, Rutherfoord J, Santoro A, Sawyer L, Schamberger RD, Schellman H, Schwartzman A, Sculli J, Sen N, Shabalina E, Shankar HC, Shivpuri RK, Shpakov D, Shupe M, Sidwell RA, Singh H, Singh JB, Sirotenko V, Slattery P, Smith E, Smith RP, Snihur R, Snow GR, Snow J, Snyder S, Solomon J, Song XF, Sorín V, Sosebee M, Sotnikova N, Souza M, Stanton NR, Steinbrück G, Stephens RW, Stevenson ML, Stichelbaut F, Stoker D, Stolin V, Stoyanova DA, Strauss M, Streets K, Strovink M, Stutte L, Sznajder A, Tarazi J, Tartaglia M, Thomas TL, Thompson J, Toback D, Trippe TG, Turcot AS, Tuts PM, van Gemmeren P, Vaniev V, Varelas N, Volkov AA, Vorobiev AP, Wahl HD, Warchol J, Watts G, Wayne M, Weerts H, White A, White JT, Wightman JA, Willis S, Wimpenny SJ, Wirjawan JV, Womersley J, Wood DR, Yamada R, Yamin P, Yasuda T, Yip K, Youssef S, Yu J, Yu Y, Zanabria M, Zheng H, Zhou Z, Zhu ZH, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG, and Zylberstejn A

Abstract

We report on a measurement of sigma(pp-->W+X)B(W-->taunu) in pp collisions at sqrt[s]=1.8 TeV at the Fermilab Tevatron. The measurement is based on an integrated luminosity (lum) of 18 pb-1 of data collected with the D0 detector during 1994-1995. We find that sigma(pp-->W+X)B(W-->taunu)=2.22+/-0.09 (stat)+/-0. 10 (syst)+/-0.10 (lum) nb. Lepton universality predicts that the ratio of the tau and electron electroweak charged current couplings to the W boson, gWtau/gWe, be unity. We find gWtau/gWe=0.980+/-0.031, in agreement with lepton universality.

Published
2000
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320. Luminescence Properties of Platinum(II) Dithiooxamide Compounds.

Author

Rosace G, Giuffrida G, Saitta M, Guglielmo G, Campagna S, and Lanza S

Abstract

Tight contact ion pairs of general formula {Pt(H(2)-R(2)-dto)(2)(2+),(X(-))(2)} have been prepared, and their absorption spectra and luminescence properties (at room temperature in dichloromethane fluid solution and at 77 K in butyronitrile rigid matrix) have been studied (dto = dithiooxamide; R = methyl, X = Cl (1); R = butyl, X = Cl (2); R = benzyl, X = Cl (3); R = cyclohexyl, X = Cl (4); R = cyclohexyl, X = Br (5); R = cyclohexyl, X = I (6)). The absorption spectra of all the compounds are dominated by moderately strong Pt(dpi)/S(p) to dithiooxamide (pi) charge transfer (Pt/S --> dto CT) bands in the visible region (epsilon in the 10(4)-10(5) M(-)(1) cm(-)(1) range). Absorption features are also present at higher energies, due to pi-pi transitions centered in the dto ligands (ligand centered, LC). All the compounds exhibit a unstructured luminescence band in fluid solution at room temperature, with the maximum centered in the 700-730 nm range. The luminescence bands are blue-shifted about 4000 cm(-)(1) on passing to the rigid matrix at 77 K. Luminescence lifetimes are on the 10(-)(8)-10(-)(7) s time scale at room temperature and 1 order of magnitude longer at 77 K. Luminescence is assigned to triplet Pt/S --> dto CT excited states in all cases. Compounds 3-6 also exhibit a second higher-energy luminescence band at room temperature, centered at about 610 nm, attributed to a LC excited state. Charge transfer interactions between halides and dto ligands destabilize dto-centered orbitals, affecting the energy of Pt/S --> dto CT transitions and states. The X counterions and X --> dto CT levels are proposed to play a role in promoting excited state conversion between LC and Pt/S --> dto CT levels. The R substituents on the nitrogen atoms of the dto ligands influence the absorption and photophysical properties of the compounds, by affecting proximity of the ion pairs. The possibility to functionalize the R substituents may open the way to interface these luminescent compounds with desired substrates and to construct supramolecular assemblies.

Published
1996
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