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301 results on '"Barbaro, L."'

3. Extraction of R = sigma_L/sigma_T from CCFR nu_mu-Fe and nubar_mu-Fe differential cross sections

Author

Yang, U. K., Adams, T., Alton, A., Arroyo, C. G., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bazarko, A. O., Bernstein, R. H., and Bodek, A.

Subjects
High Energy Physics - Experiment
Abstract

We report on the extraction of R=sigma_L/sigma_T from CCFR nu_mu-Fe and nubar_mu-Fe differential cross sections. The CCFR differential cross sections do not show the deviations from the QCD expectations that are seen in the CDHSW data at very low and very high x. R as measured in nu_mu scattering is in agreement with R as measured in muon and electron scattering. All data on R for Q^2 > 1 GeV^2 are in agreement with a NNLO QCD calculation which includes target mass effects. We report on the first measurements of R in the low x and Q^2 < 1 GeV^2 region (where an anomalous large rise in R for nuclear targets has been observed by the HERMES collaboration)., Comment: 4 pages, 4 figures, submitted to Phys. Rev. Lett

Published
2001
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4. Observation of an Anomalous Number of Dimuon Events in a High Energy Neutrino Beam

Author

NuTeV Collaboration, Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bernstein, R. H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R. B., Fleming, B. T., Frey, R., Formaggio, J. A., Goldman, J., Goncharov, M., Harris, D. A., Johnson, R. A., Kim, J. H., Koutsoliotas, S., Lamm, M. J., Marsh, W., Mason, D., McDonald, J., McNulty, C., McFarland, K. S., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W. K., Schellman, H., Shaevitz, M. H., Spentzouris, P., Stern, E. G., Suwonjandee, N., Tzanov, M., Vakili, M., Vaitaitis, A., Yang, U. K., Yu, J., Zeller, G. P., and Zimmerman, E. D.

Subjects
High Energy Physics - Experiment
Abstract

A search for long-lived neutral particles (N^0's) with masses above 2.2 GeV/c^2 that decay into at least one muon has been performed using an instrumented decay channel at the NuTeV experiment at Fermilab. Data were examined for particles decaying into the final states mu mu, mu e, and mu pi. Three mu mu events were observed over an expected Standard Model background of 0.069 +/- 0.010 events; no events were observed in the other modes., Comment: 5 pages, 3 figures, Submitted to Phys. Rev. Lett

Published
2001
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5. Recent structure function results from neutrino scattering at Fermilab

Author

Yang, U. K., Adams, T., Alton, A., Arroyo, C. G., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bazarko, A. O., Bernstein, R. H., and al, A. Bodek et

Subjects
High Energy Physics - Experiment
Abstract

We report on the extraction of the structure functions F_2 and Delta xF_3 = xF_3(nu)-xF_3(nubar) from CCFR nu_mu-Fe and nubar_mu-Fe different ial cross sections. The extraction is performed in a physics model independent (PMI) way. This first measurement of Delta xF_3, which is useful in testing models of heavy charm production, is higher than current theoretical predictios. The ratio of the F_2 (PMI) values measured in nu_mu and mu scattering is in agreement (within 5%) with the NLO predictions using massive charm production schemes, thus resolving the long-standing discrepancy between the two sets of data. In addition, measurements of F_L (or, equivalently, R) and 2xF_1 are reported in the kinematic region where anomalous nuclear effects in R are observed at HERMES., Comment: 3 pages, 3 figures, To be published in proceedings of the XXXth International Conferencee on High Energy Physics,Osaka, Japan, July, 2000

Published
2000

6. New Measurements of Nucleon Structure Functions from CCFR/NuTeV

Author

Bodek, A., Yang, U. K., Adams, T., Alton, A., Arroyo, C. G., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bazarko, A. O., Bernstein, R. H., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R. B., Fleming, B. T., Formaggio, J. A., Frey, R., Goldman, J., Goncharov, M., Harris, D. A., Johnson, R. A., Kim, J. H., King, B. J., Kinnel, T., Koutsoliotas, S., Lamm, M. J., Marsh, W., Mason, D., and McFarland, K. S.

Subjects
High Energy Physics - Experiment
Abstract

We report on the extraction of the structure functions F_2 and Delta xF_3 = xF_3nu-xF_3nub from CCFR neutrino-Fe and antineutrino-Fe differential cross sections. The extraction is performed in a physics model independent (PMI) way. This first measurement for Delta xF_3, which is useful in testing models of heavy charm production, is higher than current theoretical predictions. Within 5% the F_2 (PMI) values measured in neutrino and muon scattering are in agreement with the predictions of Next-to-Leading-Order PDFs (using massive charm production schemes), thus resolving the long-standing discrepancy between the two measurements., Comment: 3 pages, Presented by Arie Bodek at DPF2000 Conference, Columbus, Ohio, Aug. 2000

Published
2000
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7. Observation of Anomalous Dimuon Events in the NuTeV Decay Detector

Author

NuTeV Collaboration, Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bernstein, R. H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R. B., Fleming, B. T., Frey, R., Formaggio, J., Goldman, J., Goncharov, M., Harris, D. A., Johnson, R. A., Kim, J. H., Koutsoliotas, S., Lamm, M. J., Marsh, W., Mason, D., McDonald, J., McNulty, C., McFarland, K. S., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W. K., Schellman, H., Shaevitz, M. H., Spentzouris, P., Stern, E. G., Suwonjandee, N., Vakili, M., Vaitaitis, A., Yang, U. K., Yu, J., Zeller, G. P., and Zimmerman, E. D.

Subjects
High Energy Physics - Experiment
Abstract

A search for long-lived neutral particles (N^0) which decay into at least one muon has been performed using an instrumented decay channel at the E815 (NuTeV) experiment at Fermilab. The decay channel was composed of helium bags interspersed with drift chambers, and was used in conjunction with the NuTeV neutrino detector to search for N^0 decays. The data were examined for particles decaying into the muonic final states mu mu, mu e, and mu pi. Three mu mu events were observed over an expected background of 0.040 +/- 0.009 events; no events were observed in the other modes. Although the observed events share some characteristics with neutrino interactions, the observed rate is a factor of 75 greater than expected. No Standard Model process appears to be consistent with this observation., Comment: 14 pages, 16 figures, 10 tables

Published
2000

8. New Measurements of Nucleon Structure Functions from the CCFR/NuTeV Collaboration

Author

Bodek, A., Yang, U. K., Adams, T., Alton, A., Arroyo, C. G., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bazarko, A. O., Bernstein, R. H., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R. B., Fleming, B. T., Formaggio, J. A., Frey, R., Goldman, J., Goncharov, M., Harris, D. A., Johnson, R. A., Kim, J. H., King, B. J., Kinnel, T., Koutsoliotas, S., Lamm, M. J., Marsh, W., Mason, D., and McFarland, K. S.

Subjects
High Energy Physics - Experiment
Abstract

We report on the extraction of the structure functions F_2 and Delta xF_3 = xF_3nu-xF_3nubar from CCFR neutrino-Fe and antineutrino-Fe differential cross sections. The extraction is performed in a physics model independent (PMI) way. This first measurement for Delta xF_3, which is useful in testing models of heavy charm production, is higher than current theoretical predictions. The F_2 (PMI) values measured in neutrino and muon scattering are in good agreement with the predictions of Next to Leading Order PDFs (using massive charm production schemes), thus resolving the long-standing discrepancy between the two sets of data., Comment: 5 pages. Presented by Arie Bodek at the CIPNAP2000 Conference, Quebec City, May 2000

Published
2000
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9. Parton Distributions Working Group

Author

de Barbaro, L., Berger, E. L., Brock, R., Casey, D., Demina, R., Giele, W. T., Hirosky, R., Huston, J., Kalk, J., Keller, S. A., Klasen, M., Kosower, D. A., Kramer, M., Kretzer, S., Kuhlmann, S., Martin, R., Olness, F. I., Plehn, T., Pumplin, J., Scalise, R. J., Schellman, H., Smith, J., Soper, D. E., Sterman, G., Stump, D., Tung, W. -K., Varelas, N., Vogelsang, W., and Yang, U. K.

Subjects
High Energy Physics - Phenomenology
Abstract

The main focus of this working group was to investigate the different issues associated with the development of quantitative tools to estimate parton distribution functions uncertainties. In the conclusion, we introduce a "Manifesto" that describes an optimal method for reporting data., Comment: Report of the Parton Distributions Working Group of the 'QCD and Weak Boson Physics workshop in preparation for Run II at the Fermilab Tevatron'. Co-Conveners: L. de Barbaro, S.A. Keller, S. Kuhlmann, H. Schellman, and W.-K. Tung

Published
2000

10. Performance of the NuTeV Fe-Scintillator Sampling Calorimeter and Implications for Thin Calorimeters

Author

Avvakumov, S., Adams, T., Alton, A., de Barbaro, L., de Barbaro, P., Berlin, D., Bernstein, R. H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., and Bugel, L.

Subjects
High Energy Physics - Experiment
Abstract

NuTeV is a neutrino-nucleon deep inelastic scattering experiment at Fermilab. The NuTeV detector is a traditional heavy target neutrino detector which consists of an iron/liquid scintillator sampling calorimeter followed by a muon spectrometer. The calorimeter response to hadrons, muons and electrons has been measured in an in situ calibration beam over the energy range from 4.5 to 190 GeV. The small non-linearity of the response to hadrons is compared to the expectation from the measured ratio of responses between electrons and hadrons combined with the energy dependence of the fractional electromagnetic energy deposition in the form of neutral pions in hadronic showers $f_{\pi^{0}}(E_{\pi})$. The predictions use $f_{\pi^{0}}(E_{\pi})$ from the Monte Carlo simulations by GHEISHA, GFLUKA and GCALOR and also from the parameterizations of Wigmans and Groom. In addition, a study based on the NuTeV hadron calibration data of the effectiveness of a thin calorimeter is presented. The results of this study have important consequences for the energy resolution of calorimeters used in other applications; for example, measuring the cosmic ray flux in space or with balloon-based experiments., Comment: Presented at 6TH International Conference On Advanced Technology And Particle Physics Proceedings info: Advanced Technology And Particle Physics, Villa Olmo, Italy 5-9 Oct 1998

Published
2000
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11. Search for a 33.9 MeV/c^2 Neutral Particle in Pion Decay

Author

Formaggio, J. A., Zimmerman, E. D., Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bernstein, R. H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Case, S., Conrad, J. M., Drucker, R. B., Fleming, B. T., Frey, R., Goldman, J., Goncharov, M., Harris, D. A., Johnson, R. A., Kim, J. H., Koutsoliotas, S., Lamm, M. J., Marsh, W., Mason, D., McFarland, K. S., McNulty, C., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W. K., Schellman, H. M., Shaevitz, M. H., Spentzouris, P., Stern, E. G., Vakili, M., Vaitaitis, A., Wu, V., Yang, U. K., Yu, J., and Zeller, G . P.

Subjects
High Energy Physics - Experiment
Abstract

The E815 (NuTeV) neutrino experiment has performed a search for a 33.9 MeV/c^2 weakly-interacting neutral particle produced in pion decay. Such a particle may be responsible for an anomaly in the timing distribution of neutrino interactions in the KARMEN experiment. E815 has searched for this particle's decays in an instrumented decay region; no evidence for this particle was found. The search is sensitive to pion branching ratios as low as 10^-13., Comment: 4 pages; 5 figures

Published
1999
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12. Evidence for Diffractive Charm Production in nu_mu Fe and nubar_mu Fe Scattering at the Tevatron

Author

NuTeV Collaboration, Adams, T., Alton, A., Bolton, T., Goldman, J., Goncharov, M., Naples, D., Johnson, R. A., Vakili, M., Wu, V., Conrad, J., Formaggio, J., Koutsoliotas, S., Kim, J. H., McNulty, C., Romosan, A., Shaevitz, M. H., Spentzouris, P., Stern, E. G., Tamminga, B., Vaitaitis, A., Zimmerman, E. D., Bernstein, R. H., Bugel, L., Lamm, M. J., Marsh, W., Nienaber, P., Yu, J., de Barbaro, L., Buchholz, D., Schellman, H., Zeller, G. P., Brau, J., Drucker, R. B., Frey, R., Mason, D., Avvakumov, S., de Barbaro, P., Bodek, A., Budd, H., Harris, D. A., McFarland, K. S., Sakumoto, W. K., and Yang, U. K.

Subjects
High Energy Physics - Experiment
Abstract

We present evidence for the diffractive processes nu_mu Fe -> mu^- D_s^+ (D_s^*+) Fe and nubar_mu Fe -> mu^+ D_s^- (D_s^*-) Fe using the Fermilab SSQT neutrino beam and the Lab E neutrino detector. We observe the neutrino trident reactions nu_mu Fe -> nu_mu mu^- mu^+ Fe and nubar_mu Fe -> nubar_mu mu^+ mu^- Fe at rates consistent with Standard Model expectations. We see no evidence for neutral-current production of J/psi via either diffractive or deep inelastic scattering mechanisms., Comment: 13 pages, submitted to Phys. Rev. D, FERMILAB-Pub-99/269-E

Published
1999
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13. Low Q^2 low x structure function analysis of CCFR data for F2

Author

CCFR Collaboration, Tamminga, B. H., Adams, T., Alton, A., Arroyo, C. G., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bazarko, A. O., Bernstein, R. H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R. B., Formaggio, J. A., Frey, R., Goldman, J., Goncharov, M., Harris, D. A., Johnson, R. A., Kim, J. H., King, B. J., Kinnel, T., Koutsoliotas, S., Lamm, M. J., Marsh, W., Mason, D., McFarland, K. S., McNulty, C., Mishra, S. R., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W. K., Schellman, H., Sciulli, F. J., Seligman, W. G., Shaevitz, M. H., Smith, W. H., Spentzouris, P., Stern, E. G., Vakili, M., Vaitaitis, A., Wu, V., Yang, U. K., Yu, J., Zeller, G. P., and Zimmerman, E. D.

Subjects
High Energy Physics - Experiment
Abstract

Analyses of structure functions (SFs) from neutrino and muon deep inelastic scattering data have shown discrepancies in F2 for x < 0.1. A new SF analysis of the CCFR collaboration data examining regions in x down to x=.0015 and 0.4 < Q^2 < 1.0 is presented. Comparison to corrected charged lepton scattering results for F2 from the NMC and E665 experiments are made. Differences between muon and neutrino scattering allow that the behavior of F2 from muon scattering could be different from F2 from neutrino scattering as Q^2 approaches zero. Comparisons between F2 muon and F2 neutrino are made in this limit., Comment: 5 pages, 1 figure, to be published in proceedings for PANIC99

Published
1999
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14. Strange Content of the Nucleon (NuTeV)

Author

NuTeV Collaboration, Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bernstein, R. H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R. B., Frey, R., Formaggio, J., Goldman, J., Goncharov, M., Harris, D. A., Johnson, R. A., Koutsoliotas, S., Kim, J. H., Lamm, M. J., Marsh, W., MASON, D., McNulty, C., McFarland, K. S., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W. K., Schellman, H., Shaevitz, M. H., Spentzouris, P., Stern, E. G., Tamminga, B., Vakili, M., Vaitaitis, A., Wu, V., Yang, U. K., Yu, J., and Zeller, G. P.

Subjects
High Energy Physics - Experiment
Abstract

The NuTeV experiment uses neutrino deep-inelastic scattering from separate neutrino and anti-neutrino beams to study the structure of the nucleon. Charged-current production of charm is sensitive to the strange content of the nucleon while neutral-current charm production probes the charm content. Preliminary analyses of both topics are presented along with discussion of possible momentum asymmetry in the strange sea., Comment: 10 pages, 7 figures, Workshop on Physics with Electron Polarized Ion Collider

Published
1999

15. Charm Production at NuTeV

Author

NuTeV Collaboration, Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bernstein, R. H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R. B., Frey, R., Formaggio, J., Goldman, J., Goncharov, M., Harris, D. A., Johnson, R. A., Koutsoliotas, S., Kim, J. H., Lamm, M. J., Marsh, W., Mason, D., McNulty, C., McFarland, K. S., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W. K., Schellman, H., Shaevitz, M. H., Spentzouris, P., Stern, E. G., Tamminga, B., Vakili, M., Vaitaitis, A., Wu, V., Yang, U. K., Yu, J., and Zeller, G. P.

Subjects
High Energy Physics - Experiment
Abstract

Neutrino deep-inelastic scattering provides a means to study both the strange and charm content of the nucleon. The NuTeV experiment (Fermilab E-8Neutrino deep-inelastic scattering provides a means to study both the strange and charm content of the nucleon. The NuTeV experiment (Fermilab E-815) takes full advantage of separated neutrino and anti-neutrino beams to probe the nucleon. The strange sea is studied with charged-current charm production resulting in an opposite-signed two muon final state. The charm content of the nucleon is probed via neutral-current charm production creating an event with a single wrong-signed muon. Preliminary results are presented for both analyses., Comment: 4 pages, 3 figures XXXIVth Recontres de Moriond, QCD and High Energy Hadronic Interactions

Published
1999

16. Nuclear Structure Functions in the Large x Large Q^2 Kinematic Region in Neutrino Deep Inelastic Scattering

Author

CCFR collaboration, Vakili, M., Arroyo, C. G., Auchincloss, P., de Barbaro, P., Bazarko, A. O., Bernstein, R. H., Bodek, A., Bolton, T., Budd, H., Conrad, J., de Barbaro, L., Harris, D. A., Johnson, R. A., Kim, J. H., King, B. J., Kinnel, T., Koizumi, G., Koutsoliotas, S., Lamm, M. J., Lefmann, W. C., Marsh, W., McFarland, K. S., McNulty, C., Mishra, S. R., Naples, D., Nienaber, P., Oreglia, M. J., Perera, L., Quintas, P. Z., Romosan, A., Sakumoto, W. K., Schumm, B. A., Sciulli, F. J., Seligman, W. G., Shaevitz, M. H., Smith, W. H., Spentzouris, P., Steiner, R., Stern, E. G., Yang, U. K., and Yu, J.

Subjects
High Energy Physics - Experiment
Abstract

Data from the CCFR E770 Neutrino Deep Inelastic Scattering (DIS) experiment at Fermilab contain events with large Bjorken x (x>0.7) and high momentum transfer (Q^2>50 (GeV/c)^2). A comparison of the data with a model based on no nuclear effects at large x, shows a significant excess of events in the data. Addition of Fermi gas motion of the nucleons in the nucleus to the model does not explain the excess. Adding a higher momentum tail due to the formation of ``quasi-deuterons'' makes some improvement. An exponentially falling F_2 \propto e^-s(x-x_0) at large x, predicted by ``multi-quark clusters'' and ``few-nucleon correlations'', can describe the data. A value of s=8.3 \pm 0.7(stat.)\pm 0.7(sys.) yields the best agreement with the data., Comment: 4 pages, 4 figures, 1 table. Sibmitted to PRL

Published
1999
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17. Measurement of sin^2 theta_W in nu N Scattering from NuTeV

Author

NuTeV Collaboration, Johnson, R. A., Adams, T., Alton, A., Avvakumov, S., De Barbaro, L., De Barbaro, P., Bernstein, R. H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bguel, L., Conrad, J., Drucker, R. B., Frey, R., Goldman, J., Goncharov, M., Harris, D. A., Koutsoliotas, S., Kim, J. H., Lamm, M. J., Marsh, W., Mason, D., McNulty, C., McFarland, K. S., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W. K., Schellman, H., Shaevitz, M. H., Spentzouris, P., Stern, E. G., Vakili, M., Vaitaitis, A., Wu, V., Yang, U. K., Yu, J., and Zeller, G. P.

Subjects
High Energy Physics - Experiment
Abstract

We report the measurement of sin^2 theta_W in nu N deep inelastic scattering from the NuTeV experiment. By using separate neutrino and anti-neutrino beams, NuTeV is able to determine sin^2 theta_W with smaller systematic and similar or smaller statistical errors when compared to previous neutrino experiments. NuTeV measures sin^2 theta_W (on-shell) = 0.2253 +/- 0.0019(stat.) +/- 0.0010(sys.), which implies M_W = 80.26 +/- 0.11 GeV/c^2., Comment: 5 pages, 4 figures, Invited talk presented at WIN99, Cape Town, South Africa, 24-30, January, 1999

Published
1999

18. Measurement of sin2thetaW from Neutrino-Nucleon Scattering at NuTeV

Author

McFarland, K. S., Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bernstein, R. H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R. B., Frey, R., Goldman, J., Goncharov, M., Harris, D. A., Johnson, R. A., Koutsoliotas, S., Kim, J. H., Lamm, M. J., Marsh, W., Mason, D., McNulty, C., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W. K., Schellman, H., Shaevitz, M. H., Spentzouris, P., Stern, E. G., Vakili, M., Vaitaitis, A., Wu, V., Yang, U. K., Yu, J., and Zeller, G. P.

Subjects
High Energy Physics - Experiment
Abstract

We report the measurement of sin2thetaW in neutrino-nucleon deep inelastic scattering from the NuTeV experiment. Using separate neutrino and anti-neutrino beams, NuTeV is able to determine sin2thetaW with low systematic errors by measuring the Paschos-Wolfenstein variable R-minus, a ratio of differences of neutrino and anti-neutrino neutral-current and charged-current cross-sections. NuTeV measures sin2thetaW(on-shell)= 0.2253+/-0.0019(stat)+/-0.0010(syst), which implies a W mass of 80.26+/-0.11 GeV., Comment: To appear in the Proceedings for the XXXIII Rencontres de Moriond. 12 pages, 3 figures

Published
1998

19. A precision measurement of electroweak parameters in neutrino-nucleon scattering

Author

McFarland, KS, Arroyo, CG, King, BJ, De Barbaro, L, De Barbaro, P, Bazarko, AO, Bernstein, RH, Bodek, A, Bolton, T, Budd, H, Bugel, L, Conrad, J, Drucker, RB, Harris, DA, Johnson, RA, Kim, JH, Kinnel, T, Lamm, MJ, Lefmann, WC, Marsh, W, McNulty, C, Mishra, SR, Naples, D, Quintas, PZ, Romosan, A, Sakumoto, WK, Schellman, H, Sciulli, FJ, Seligman, WG, Shaevitz, MH, Smith, WH, Spentzouris, P, Stern, EG, Vakili, M, Yang, UK, Yu, J, and Zeller, GP

Subjects
Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

The CCFR collaboration reports a precise measurement of electroweak parameters derived from the ratio of neutral-current to charged-current cross-sections in neutrino-nucleon scattering at the Fermilab Tevatron. We determine sin2 θ(on-shell)W = 0.2236 ± 0.0028 (expt.) ± 0.0030 (model) for Mtop = 175 GeV, MHiggs = 150 GeV. This is equivalent to MW = 80.35 ± 0.21 GeV. The good agreement of this measurement with Standard Model expectations implies the exclusion of additional vvqq contact interactions at 95% confidence at a mass scale of 1-8 TeV, depending on the form of the contact interaction.

Published
1998

20. Discovery of Anti-tubercular Analogues of Bedaquiline with Modified A-, B- and C-Ring Subunits

Author

Barbaro, L, Nagalingam, G, Triccas, JA, Tan, L, West, NP, Priebbenow, DL, Baell, JB, Barbaro, L, Nagalingam, G, Triccas, JA, Tan, L, West, NP, Priebbenow, DL, and Baell, JB

Abstract

To date, the clinical use of the anti-tubercular therapy bedaquiline has been somewhat limited due to safety concerns. Recent investigations determined that modification of the B- and C-ring units of bedaquiline delivered new diarylquinolines (for example TBAJ-587) with potent anti-tubercular activity yet an improved safety profile due to reduced affinity for the hERG channel. Building on our recent discovery that substitution of the quinoline motif (the A-ring subunit) for C5-aryl pyridine groups within bedaquiline analogues led to retention of anti-tubercular activity, we investigated the concurrent modification of A-, B- and C-ring units within bedaquiline variants. This led to the discovery that 4-trifluoromethoxyphenyl and 4-chlorophenyl pyridyl analogues of TBAJ-587 retained relatively potent anti-tubercular activity and for the 4-chlorophenyl derivative in particular, a significant reduction in hERG inhibition relative to bedaquiline was achieved, demonstrating that modifications of the A-, B- and C-ring units within the bedaquiline structure is a viable strategy for the design of effective, yet safer (and less lipophilic) anti-tubercular compounds.

Published
2023

21. Climate-driven variation in dispersal ability predicts responses to forest fragmentation in birds

Author

Weeks, T.L., Betts, M.G., Pfeifer, M., Wolf, C., Banks-Leite, C., Barbaro, L., Barlow, J., Cerezo, A., Kennedy, C.M., Kormann, U.G., Marsh, C.J., Olivier, P.I., Phalan, B.T., Possingham, H.P., Wood, E.M., Tobias, J.A., Weeks, T.L., Betts, M.G., Pfeifer, M., Wolf, C., Banks-Leite, C., Barbaro, L., Barlow, J., Cerezo, A., Kennedy, C.M., Kormann, U.G., Marsh, C.J., Olivier, P.I., Phalan, B.T., Possingham, H.P., Wood, E.M., and Tobias, J.A.

Abstract

Species sensitivity to forest fragmentation varies latitudinally, peaking in the tropics. A prominent explanation for this pattern is that historical landscape disturbance at higher latitudes has removed fragmentation-sensitive species or promoted the evolution of more resilient survivors. However, it is unclear whether this so-called extinction filter is the dominant driver of geographic variation in fragmentation sensitivity, particularly because climatic factors may also cause latitudinal gradients in dispersal ability, a key trait mediating sensitivity to habitat fragmentation. Here we combine field survey data with a morphological proxy for avian dispersal ability (hand-wing index) to assess responses to forest fragmentation in 1,034 bird species worldwide. We find that fragmentation sensitivity is strongly predicted by dispersal limitation and that other factors—latitude, body mass and historical disturbance events—have relatively limited explanatory power after accounting for species differences in dispersal. We also show that variation in dispersal ability is only weakly predicted by historical disturbance and more strongly associated with intra-annual temperature fluctuations (seasonality). Our results suggest that climatic factors play a dominant role in driving global variation in the impacts of forest fragmentation, emphasizing the need for more nuanced environmental policies that take into account local context and associated species traits.

Published
2023

24. Utilización de polvo de roca basáltica en comparación con la dolomita para ajustar el pH de un sustrato a base de compost de corteza de pino y su respuesta en la disponibilidad de nutrientes.

Author

Barbaro, L. A., Iwasita, B. E., Karlanian, M. A, and Rubio, E.

Subjects
BASALT, MINERAL dusts, COPPER, ELECTRIC conductivity, DOLOMITE
Abstract

Copyright of Agriscientia is the property of Revista AgriScientia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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25. Evaluation of different practices in the production of basil seedlings (Ocimum basilicum L.).

Author

Barbaro, L. A. and Balsamo, M.

Subjects
BASIL, SPRINKLER irrigation, SEEDLINGS, SUBIRRIGATION, ELECTRIC conductivity, SPRINKLERS
Abstract

Copyright of Argentinian Horticulture / Horticultura Argentina is the property of Revista Horticultura Argentina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022

26. Tests of a calorimetric technique for measuring the energy of cosmic ray muons in the TeV energy range

Author

Chikkatur, A. P., Bugel, L., Alton, A., Arroyo, C. G., Avvakumov, S., Auchincloss, P., de Barbaro, L., de Barbaro, P., Bazarko, A. O., Bernstein, R. H., Bolton, T., Bodek, A., Brau, J., Budd, H., Conrad, J., Drucker, R. B., Goldman, J., Harris, D. A., Johnson, R. A., Kim, J. H., Kinnel, T., Koutsoliotas, S., Lamm, M. J., Lefmann, W. C., Lowery, W. B., Marsh, W., McFarland, K. S., McNulty, C., Mishra, S. R., Naples, D., Nienaber, P., Oreglia, M. J., Perera, L., Quintas, P. Z., Romosan, A., Sakumoto, W. K., H.Schellman, Schumm, B. A., Sciulli, F. J., Seligman, W. G., Shaevitz, M. H., Smith, W. H., Spentzouris, P., Steiner, R., Stern, E. G., Vaitaitis, A., Vakili, M., Yang, U. K., Woods, D., Yu, J., Zeller, S., and Nu TeV/CCFR Collaboration

Published
1997
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27. Meta-analysis of multidecadal biodiversity trends in Europe

Author

Pilotto, F., Kühn, I., Adrian, R., Alber, R., Alignier, A., Andrews, C., Bäck, J., Barbaro, L., Beaumont, D., Beenaerts, N., Benham, S., Boukal, D.S., Bretagnolle, V., Camatti, E., Canullo, R., Cardoso, P.G., Ens, B.J., Everaert, G., Evtimova, V., Feuchtmayr, H., García-González, R., Gómez García, D., Grandin, U., Gutowski, J.M., Hadar, L., Halada, L., Halassy, M., Hummel, H., Huttunen, K.-L., Jaroszewicz, B., Jensen, T.C., Kalivoda, H., Schmidt, I.K., Kröncke, I., Leinonen, R., Martinho, F., Meesenburg, H., Meyer, J., Minerbi, S., Monteith, D., Nikolov, B.P., Oro, D., Ozolinš, D., Padedda, B.M., Pallett, D., Pansera, M., Pardal, M.A., Petriccione, B., Pipan, T., Pöyry, J., Schäfer, S.M., Schaub, M., Schneider, S.C., Skuja, A., Soetaert, K., Springe, G., Stanchev, R., Stockan, J.A., Stoll, S., Sundqvist, L., Thimonier, A., Van Hoey, G., Van Ryckegem, G., Visser, M.E., Vorhauser, S., Haase, P., Pilotto, F., Kühn, I., Adrian, R., Alber, R., Alignier, A., Andrews, C., Bäck, J., Barbaro, L., Beaumont, D., Beenaerts, N., Benham, S., Boukal, D.S., Bretagnolle, V., Camatti, E., Canullo, R., Cardoso, P.G., Ens, B.J., Everaert, G., Evtimova, V., Feuchtmayr, H., García-González, R., Gómez García, D., Grandin, U., Gutowski, J.M., Hadar, L., Halada, L., Halassy, M., Hummel, H., Huttunen, K.-L., Jaroszewicz, B., Jensen, T.C., Kalivoda, H., Schmidt, I.K., Kröncke, I., Leinonen, R., Martinho, F., Meesenburg, H., Meyer, J., Minerbi, S., Monteith, D., Nikolov, B.P., Oro, D., Ozolinš, D., Padedda, B.M., Pallett, D., Pansera, M., Pardal, M.A., Petriccione, B., Pipan, T., Pöyry, J., Schäfer, S.M., Schaub, M., Schneider, S.C., Skuja, A., Soetaert, K., Springe, G., Stanchev, R., Stockan, J.A., Stoll, S., Sundqvist, L., Thimonier, A., Van Hoey, G., Van Ryckegem, G., Visser, M.E., Vorhauser, S., and Haase, P.

Abstract

Local biodiversity trends over time are likely to be decoupled from global trends, as local processes may compensate or counteract global change. We analyze 161 long-term biological time series (15–91 years) collected across Europe, using a comprehensive dataset comprising ~6,200 marine, freshwater and terrestrial taxa. We test whether (i) local long-term biodiversity trends are consistent among biogeoregions, realms and taxonomic groups, and (ii) changes in biodiversity correlate with regional climate and local conditions. Our results reveal that local trends of abundance, richness and diversity differ among biogeoregions, realms and taxonomic groups, demonstrating that biodiversity changes at local scale are often complex and cannot be easily generalized. However, we find increases in richness and abundance with increasing temperature and naturalness as well as a clear spatial pattern in changes in community composition (i.e. temporal taxonomic turnover) in most biogeoregions of Northern and Eastern Europe.

Published
2020

28. Meta-analysis of multidecadal biodiversity trends in Europe

Author

Pilotto, F. (Francesca), Kuehn, I. (Ingolf), Adrian, R. (Rita), Alber, R. (Renate), Alignier, A. (Audrey), Andrews, C. (Christopher), Baeck, J. (Jaana), Barbaro, L. (Luc), Beaumont, D. (Deborah), Beenaerts, N. (Natalie), Benham, S. (Sue), Boukal, D. S. (David S.), Bretagnolle, V. (Vincent), Camatti, E. (Elisa), Canullo, R. (Roberto), Cardoso, P. G. (Patricia G.), Ens, B. J. (Bruno J.), Everaert, G. (Gert), Evtimova, V. (Vesela), Feuchtmayr, H. (Heidrun), Garcia-Gonzalez, R. (Ricardo), Gomez Garcia, D. (Daniel), Grandin, U. (Ulf), Gutowski, J. M. (Jerzy M.), Hadar, L. (Liat), Halada, L. (Lubos), Halassy, M. (Melinda), Hummel, H. (Herman), Huttunen, K.-L. (Kaisa-Leena), Jaroszewicz, B. (Bogdan), Jensen, T. C. (Thomas C.), Kalivoda, H. (Henrik), Schmidt, I. K. (Inger Kappel), Kroencke, I. (Ingrid), Leinonen, R. (Reima), Martinho, F. (Filipe), Meesenburg, H. (Henning), Meyer, J. (Julia), Minerbi, S. (Stefano), Monteith, D. (Don), Nikolov, B. P. (Boris P.), Oro, D. (Daniel), Ozolins, D. (Davis), Padedda, B. M. (Bachisio M.), Pallett, D. (Denise), Pansera, M. (Marco), Pardal, M. A. (Miguel Angelo), Petriccione, B. (Bruno), Pipan, T. (Tanja), Poeyry, J. (Juha), Schaefer, S. M. (Stefanie M.), Schaub, M. (Marcus), Schneider, S. C. (Susanne C.), Skuja, A. (Agnija), Soetaert, K. (Karline), Springe, G. (Gunta), Stanchev, R. (Radoslav), Stockan, J. A. (Jenni A.), Stoll, S. (Stefan), Sundqvist, L. (Lisa), Thimonier, A. (Anne), Van Hoey, G. (Gert), Van Ryckegem, G. (Gunther), Visser, M. E. (Marcel E.), Vorhauser, S. (Samuel), Haase, P. (Peter), Pilotto, F. (Francesca), Kuehn, I. (Ingolf), Adrian, R. (Rita), Alber, R. (Renate), Alignier, A. (Audrey), Andrews, C. (Christopher), Baeck, J. (Jaana), Barbaro, L. (Luc), Beaumont, D. (Deborah), Beenaerts, N. (Natalie), Benham, S. (Sue), Boukal, D. S. (David S.), Bretagnolle, V. (Vincent), Camatti, E. (Elisa), Canullo, R. (Roberto), Cardoso, P. G. (Patricia G.), Ens, B. J. (Bruno J.), Everaert, G. (Gert), Evtimova, V. (Vesela), Feuchtmayr, H. (Heidrun), Garcia-Gonzalez, R. (Ricardo), Gomez Garcia, D. (Daniel), Grandin, U. (Ulf), Gutowski, J. M. (Jerzy M.), Hadar, L. (Liat), Halada, L. (Lubos), Halassy, M. (Melinda), Hummel, H. (Herman), Huttunen, K.-L. (Kaisa-Leena), Jaroszewicz, B. (Bogdan), Jensen, T. C. (Thomas C.), Kalivoda, H. (Henrik), Schmidt, I. K. (Inger Kappel), Kroencke, I. (Ingrid), Leinonen, R. (Reima), Martinho, F. (Filipe), Meesenburg, H. (Henning), Meyer, J. (Julia), Minerbi, S. (Stefano), Monteith, D. (Don), Nikolov, B. P. (Boris P.), Oro, D. (Daniel), Ozolins, D. (Davis), Padedda, B. M. (Bachisio M.), Pallett, D. (Denise), Pansera, M. (Marco), Pardal, M. A. (Miguel Angelo), Petriccione, B. (Bruno), Pipan, T. (Tanja), Poeyry, J. (Juha), Schaefer, S. M. (Stefanie M.), Schaub, M. (Marcus), Schneider, S. C. (Susanne C.), Skuja, A. (Agnija), Soetaert, K. (Karline), Springe, G. (Gunta), Stanchev, R. (Radoslav), Stockan, J. A. (Jenni A.), Stoll, S. (Stefan), Sundqvist, L. (Lisa), Thimonier, A. (Anne), Van Hoey, G. (Gert), Van Ryckegem, G. (Gunther), Visser, M. E. (Marcel E.), Vorhauser, S. (Samuel), and Haase, P. (Peter)

Abstract

Local biodiversity trends over time are likely to be decoupled from global trends, as local processes may compensate or counteract global change. We analyze 161 long-term biological time series (15–91 years) collected across Europe, using a comprehensive dataset comprising ~6,200 marine, freshwater and terrestrial taxa. We test whether (i) local long-term biodiversity trends are consistent among biogeoregions, realms and taxonomic groups, and (ii) changes in biodiversity correlate with regional climate and local conditions. Our results reveal that local trends of abundance, richness and diversity differ among biogeoregions, realms and taxonomic groups, demonstrating that biodiversity changes at local scale are often complex and cannot be easily generalized. However, we find increases in richness and abundance with increasing temperature and naturalness as well as a clear spatial pattern in changes in community composition (i.e. temporal taxonomic turnover) in most biogeoregions of Northern and Eastern Europe.

Published
2020

29. High energy neutrino scattering results from NuTeV

Author

Naples, D., Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bernstein, R.H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Conrad, J., Drucker, R.B., Fleming, B.T., Formaggio, J., Frey, R., Goldman, J., Goncharov, M., Harris, D.A., Kim, J.H., Koutsoliotas, S., Johnson, R.A., Lamm, M.J., McDonald, J., Marsh, W., Mason, D., McFarland, K.S., McNulty, C., Nienaber, P., Radescu, V., Romosan, A., Sakumoto, W.K., Schellman, H., Shaevitz, M.H., Spentzouris, P., Stern, E.G., Suwonjandee, N., Tobien, N., Tzanov, M., Vaitaitis, A., Vakili, M., Yang, U.K., Yu, J., Zeller, G.P., and Zimmerman, E.D.

Published
2003
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30. ATLID, ESA atmospheric LIDAR: integration of instrument and tests

Author

de Villele, G., primary, Pereira do Carmo, J., additional, Helière, A., additional, Lefebvre, A., additional, Barbaro, L., additional, Belhadj, Thomas, additional, Chassat, F., additional, Corselle, B., additional, Evin, R., additional, Feral, M., additional, Levret, I., additional, Lingot, Philippe, additional, Olivier, F., additional, Pelletier, S., additional, Pochet, J., additional, Schaube, A., additional, Varlet, F., additional, and Vlimant, P., additional

Published
2019
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31. Nuclear effects and the NuTeV sin 2 θ W measurement

Author

McFarland, K.S., Zeller, G.P., Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bernstein, R.H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R.B., Fleming, B.T., Frey, R., Formaggio, J.A., Goldman, J., Goncharov, M., Harris, D.A., Johnson, R.A., Kim, J.H., Koutsoliotas, S., Lamm, M.J., Marsh, W., Mason, D., McDonald, J., McNulty, C., Naples, D., Nienaber, P., Radescu, V., Romosan, A., Sakumoto, W.K., Schellman, H., Shaevitz, M.H., Spentzouris, P., Stern, E.G., Suwonjandee, N., Tzanov, M., Vakili, M., Vaitaitis, A., Yang, U.K., Yu, J., and Zimmerman, E.D.

Published
2002
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32. Identifying the tree species compositions that maximize ecosystem functioning in European forests

Author

European Commission, Benavides, Raquel [0000-0003-2328-5371], Valladares, Fernando [0000-0002-5374-4682], Bastias, Cristina C. [0000-0002-2479-2001], Allan, Eric [0000-0001-9641-9436], Baeten, L., Bruelheide, H., van der Plas, F., Kambach, S., Ratcliffe, S., Jucker, T., Allan, Eric, Ampoorter, E., Barbaro, L., Bastias, Cristina C., Bauhus, J., Benavides, Raquel, Bonal, D., Bouriaud, O., Bussotti, F., Carnol, M., Castagneyrol, B., Charbonnier, Y., Checko, Ewa, Coomes, David A., Dahlgren, J., Dawud, S.M., De Wandeler, H., Domisch, Timo, Finér, Leena, Fischer, Markus, Fotelli, M., Gessler, A., Grossiord, C., Guyot, V., Hättenschwiler, S., Jactel, H., Jaroszewicz, B., Joly, François‐Xavier, Koricheva, J., Lehtonen, A., Müller, S., Muys, Bart, Nguyen, D., Pollastrini, M., Radoglou, K., Raulund-Rasmussen, K., Ruiz-Benito, P., Selvi, F., Stenlid, J., Valladares Ros, Fernando, Vesterdal, L., Verheyen, K., Wirth, C., Zavala, M.A., European Commission, Benavides, Raquel [0000-0003-2328-5371], Valladares, Fernando [0000-0002-5374-4682], Bastias, Cristina C. [0000-0002-2479-2001], Allan, Eric [0000-0001-9641-9436], Baeten, L., Bruelheide, H., van der Plas, F., Kambach, S., Ratcliffe, S., Jucker, T., Allan, Eric, Ampoorter, E., Barbaro, L., Bastias, Cristina C., Bauhus, J., Benavides, Raquel, Bonal, D., Bouriaud, O., Bussotti, F., Carnol, M., Castagneyrol, B., Charbonnier, Y., Checko, Ewa, Coomes, David A., Dahlgren, J., Dawud, S.M., De Wandeler, H., Domisch, Timo, Finér, Leena, Fischer, Markus, Fotelli, M., Gessler, A., Grossiord, C., Guyot, V., Hättenschwiler, S., Jactel, H., Jaroszewicz, B., Joly, François‐Xavier, Koricheva, J., Lehtonen, A., Müller, S., Muys, Bart, Nguyen, D., Pollastrini, M., Radoglou, K., Raulund-Rasmussen, K., Ruiz-Benito, P., Selvi, F., Stenlid, J., Valladares Ros, Fernando, Vesterdal, L., Verheyen, K., Wirth, C., and Zavala, M.A.

Abstract

Forest ecosystem functioning generally benefits from higher tree species richness, but variation within richness levels is typically large. This is mostly due to the contrasting performances of communities with different compositions. Evidence-based understanding of composition effects on forest productivity, as well as on multiple other functions will enable forest managers to focus on the selection of species that maximize functioning, rather than on diversity per se. We used a dataset of 30 ecosystem functions measured in stands with different species richness and composition in six European forest types. First, we quantified whether the compositions that maximize annual above-ground wood production (productivity) generally also fulfil the multiple other ecosystem functions (multifunctionality). Then, we quantified the species identity effects and strength of interspecific interactions to identify the “best” and “worst” species composition for multifunctionality. Finally, we evaluated the real-world frequency of occurrence of best and worst mixtures, using harmonized data from multiple national forest inventories. The most productive tree species combinations also tended to express relatively high multifunctionality, although we found a relatively wide range of compositions with high- or low-average multifunctionality for the same level of productivity. Monocultures were distributed among the highest as well as the lowest performing compositions. The variation in functioning between compositions was generally driven by differences in the performance of the component species and, to a lesser extent, by particular interspecific interactions. Finally, we found that the most frequent species compositions in inventory data were monospecific stands and that the most common compositions showed below-average multifunctionality and productivity. Synthesis and applications. Species identity and composition effects are essential to the development of high-performing product

Published
2019

33. Continental mapping of forest ecosystem functions reveals widespread synergies

Author

Van Der Plas , F, Ratcliffe, Sophia, Ruiz Benito, Paloma, Scherer-Lorenzen , Michael, Verheyen , K., Wirth, C., Zavala Gironés, Miguel Ángel de, Ampoorter , E, Baeten , L, Barbaro , L, Crespo, C, Bauhus , J, Castagneyrol, Bastien, Charbonnier , Y, Cornelissen, J.H.C., Dahlgren, J., Checko , E, Coppi , A, Dawud , S, Deconchat , M, Desmedt , P, De Wandeler , H, Domisch , T, Finer , L., Fotelli , M, Gessler , A, Granier , A, Grossiord , C, Guyot , V, Haase , J, Hattenschwiler , S, Jactel , H, Jaroszewicz , B, Joly , F-X, Jucker , T, Kambach , S, Kändler, Gerald, Kattge, Jens, Koricheva , J, Kunstler, Georges, Lehtonen, Aleksi, Liebergesell, M, Manning , P, Milligan , H, Müller , S, Muys, Bart, Nguyen , D, Nock , C, Ohse , B, Paquette , A., Peñuelas Rubira, Juan Luis, Pollastrini , M, Radoglou , K, Raulund-Rasmussen , K, Roger , F, Seidl , R, Selvi , F, Stenlid , J, Valladares Ros, Fernando, Vesterdal , L, Fischer , M, Gamfeldt , L, Eric , E, and Universidad de Alcalá. Departamento de Ciencias de la Vida

Subjects
Medio Ambiente, Climate, Upscaling, Ecosystem services, Tree communities, Biodiversity, Forest, Environmental science, Ecosystem multifunctionality, Phylogenetic diversity
Abstract

Humans require multiple services from ecosystems, but it is largely unknown whether trade‐offs between ecosystem functions prevent the realisation of high ecosystem multifunctionality across spatial scales. Here, we combined a comprehensive dataset (28 ecosystem functions measured on 209 forest plots) with a forest inventory dataset (105,316 plots) to extrapolate and map relationships between various ecosystem multifunctionality measures across Europe. These multifunctionality measures reflected different management objectives, related to timber production, climate regulation and biodiversity conservation/recreation. We found that trade‐offs among them were rare across Europe, at both local and continental scales. This suggests a high potential for 'win‐win' forest management strategies, where overall multifunctionality is maximised. However, across sites, multifunctionality was on average 45.8‐49.8% below maximum levels and not necessarily highest in protected areas. Therefore, using one of the most comprehensive assessments so far, our study suggests a high but largely unrealised potential for management to promote multifunctional forests.

Published
2018
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34. Producción de plantines de petunia (Petunia híbrida) en sistema flotante

Author

Barbaro, L. A., Delucchi, Gustavo, and Karlanian, M. A.

Subjects
cultivo sin suelo, Agriculture (General), Ciencias Naturales, floricultura, Agriculture, hidroponía, S1-972
Abstract

El sistema flotante es un tipo de producción hidropónica de plantines muy utilizado en el sector tabacalero argentino, pero en el sector florícola es nuevo y no está muy estudiado y difundido. Este sistema permite reducir la mano de obra y el uso de agua con respecto a otros sistemas de cultivo. Por otra parte, las plantas de petunia (Petunia hybrida) son muy cultivadas y requieren plantines de calidad. Por lo tanto, evaluar el sistema flotante con esta especie y lograr un plantín adecuado constituye un aporte valioso para el sector. El objetivo del presente trabajo fue producir plantines de petunia en sistema flotante como alternativa al sistema convencional. Se realizaron dos ensayos, en uno se comparó el sistema flotante frente al convencional con tres dosis de fertilizante (19-19-19): 71,5; 31,5; 59,4 mg L-1 de N-P-K, 143; 62,9; 118,7 mg L-1 de N-P-K y 286; 125,8; 237,4 mg L-1 de N-P-K, y en otro se compararon diferentes tipos y volúmenes de bandejas de siembra: 228 celdas de 10 cm3, 216 celdas de 15 cm3, 288 celdas de 10 cm3 y 288 celdas de 17cm3. Al finalizar ambos ensayos se midió por separado la masa seca de la parte aérea, radicular y total. Como resultado, se observó que los plantines obtenidos en el sistema flotante lograron mejor desarrollo que en el sistema convencional. Los plantines lograron un mayor desarrollo fertilizados con 143; 62,9; 118,7 mg L-1 ppm de N-P-K. El tamaño adecuado de bandeja fue de 228 celdas de 10 cm3. En este trabajo se logró obtener el manejo apropiado para producir plantines de petunia en sistema flotante., The floating system is a type of hydroponic seedling production system widely used in Argentina’s tobacco industry, but this system is new and it has not been very studied and disseminated in the flower industry. This system reduces the hand labor and the water used compared to other cropping systems. On the other hand, the plants of petunia (Petunia hybrida) are very cultivated and require of quality seedlings. Therefore, to evaluate the floating system with this species and to achieve adequate seedlings is a valuable contribution to the sector. The aim of this study was to produce seedlings of petunia in a floating system as an alternative to the conventional system. Two trials were conducted, one compared the floating system vs. the conventional with three doses of fertilizer (19-19-19): 71,5; 31,5; 59,4 mg L-1 of N-P-K, 143; 62,9; 118,7mg L-1 of N-P-K and 286; 125,8; 237,4 mg L-1 of N-P-K; and in the other were compared different types and volumes of seed trays: 228 cells of 10 cm3, 216 cells of 15 cm3, 288 cells of 10 cm3 y 288 cells of 17cm3. When both of these essays were finished, the dry mass of aerial part, root and total dry mass were separately measured. As a result, it was verobserved that the seedlings obtained in the floating system achieved better development than in the conventional system. The seedlings fertilized with 143; 62,9; 118,7 mg L-1 ppm of N-P-K achieved greater development. The appropriate size of the seed tray was 228 cells of 10 cm3. In this work was possible to obtain the proper management to produce petunia seedlings in floating system., Facultad de Ciencias Naturales y Museo, Instituto Nacional de Tecnología Agropecuaria

Published
2015

35. Recent QCD results from NuTeV/CCFR Collaboration

Author

Adams, T., Alton, A., Arroyo, C.G., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bazarko, A.O., Bernstein, R.H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J.M., Drucker, R.B., Formaggio, J.A., Frey, R., Goldman, J., Goncharov, M., Harris, D.A., Johnson, R.A., Kim, J.H., King, B.J., Kinnel, T., Koutsoliotas, S., Lamm, M.J., Marsh, W., Mason, D., McFarland, K.S., McNulty, C., Mishra, S.R., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W.K., Schellman, H.M., Sculli, F.J., Seligman, W.G., Shaevitz, M.H., Smith, W.H., Spentzouris, P., Stern, E.G., Tamminga, B.M., Vakili, M., Vaitaitis, A., Wu, V., Yang, U.K., Yu, J., and Zeller, G.P.

Published
2000
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36. Precision calibration of the NuTeV calorimeter

Author

Harris, D.A., Yu, J., Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bernstein, R.H., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R.B., Fleming, B.T., Frey, R., Formaggio, J., Goldman, J., Goncharov, M., Johnson, R.A., Kim, J.H., Koutsoliotas, S., Krishnaswami, G., Lamm, M.J., Marsh, W., Mason, D., McNulty, C., McFarland, K.S., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W.K., Schellman, H., Shaevitz, M.H., Spentzouris, P., Stern, E.G., Vaitaitis, A., Vakili, M., Ark, E.Van, Wu, V., Yang, U.K., and Zeller, G.P.

Published
2000
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37. Edge contrast does not modulate edge effect on plants and pollinators

Author

Andrieu, E., primary, Cabanettes, A., additional, Alignier, A., additional, Van Halder, I., additional, Alard, D., additional, Archaux, F., additional, Barbaro, L., additional, Bouget, C., additional, Bailey, S., additional, Corcket, E., additional, Deconchat, M., additional, Vigan, M., additional, Villemey, A., additional, and Ouin, A., additional

Published
2018
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38. A measurement of [formula omitted] and R with the CCFR detector

Author

Yang, U.K., Avvakumov, S., de Barbaro, P., Bodek, A., Budd, H., Harris, D.A., McFarland, K.S., Sakumoto, W.K., Johnson, R.A., Vakili, M., Wu, V., Arroyo, C.G., Bazarko, A.O., Conrad, J.M., Formaggio, J.A., Kim, J.H., King, B.J., Koutsoliotas, S., Lefmann, W.C., McNulty, C., Mishra, S.R., Romosan, A., Sciulli, F.J., Seligman, W.G., Shaevitz, M.H., Spentzouris, P., Stern, E.G., Tamminga, B.M., Vaitaitis, A., Bernstein, R.H., Bugel, L., Lamm, M.J., Marsh, W., Nienaber, P., Yu, J., Adams, T., Alton, A., Bolton, T., Goldman, J., Goncharov, M., Naples, D., de Barbaro, L., Buchholz, D., Schellman, H., Zeller, G.P., Brau, J., Drucker, R.B., Frey, R., Mason, D., Kinnel, T., and Smith, W.H.

Published
1999
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39. Determination of sin 2θW from neutrino-nucleon scattering at NuTeV

Author

Bernstein, R.H., Adams, T., Alton, A., Avvakumov, S., de Barbaro, L., de Barbaro, P., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R.B., Frey, R., Goldman, J., Goncharov, M., Harris, D.A., Johnson, R.A., Koutsoliotas, S., Kim, J.H., Lamm, M.J., Marsh, W., Mason, D., McFarland, K.S., McNulty, C., Naples, D., Nienaber, P., Romosan, A., Sakumoto, W.K., Schellman, H., Shaevitz, M.H., Spentzouris, P., Stern, E.G., Vakili, M., Vaitaitis, A., Wu, V., Yang, U.K., Yu, J., and Zeller, G.P.

Published
1999
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40. Biotic homogenization is more detrimental than local species loss for landscape-scale forest multifunctionality

Author

van der Plas, F., Manning, P., Soliveres, S., Allan, E., Scherer-Lorenzen, M., Verheyen, K., Wirth, C., Zavala, M., Ampoorter, E., Baeten, L., Barbaro, L., Bauhus, J., Benavides, R., Benneter, A., Bonal, D., Bouriaud, O., Bruelheide, H., Bussotti, F., Carnol, M., Castagneyrol, B., Charbonnier, Y., Coomes, D., Coppi, A., Bastias, C., Dawud, S., Wandeler, H., Domisch, T., Finér, L., Gessler, A., Granier, A., Grossiord, C., Guyot, V., Hättenschwiler, S., Jactel, H., Jaroszewicz, B., Joly, F., Jucker, T., Koricheva, J., Milligana, H., Mueller, S., Muys, B., Nguyenb, D., Pollastrini, M., Ratcliffe, S., Raulund-Rasmussen, K., Selvi, F., Stenlid, J., Valladares, F., Vesterdal, L., Zielínski, D., and Fischer, M.

Abstract

Many experiments have shown that local biodiversity loss impairs the ability of ecosystems to maintain multiple ecosystem functions at high levels (multifunctionality). In contrast, the role of biodiversity in driving ecosystem multifunctionality at landscape scales remains unresolved. We used a comprehensive pan-European dataset, including 16 ecosystem functions measured in 209 forest plots across six European countries, and performed simulations to investigate how local plot-scale richness of tree species (α-diversity) and their turnover between plots (β-diversity) are related to landscape-scale multifunctionality. After accounting for variation in environmental conditions, we found that relationships between α-diversity and landscape-scale multifunctionality varied from positive to negative depending on the multifunctionality metric used. In contrast, when significant, relationships between β-diversity and landscape-scale multifunctionality were always positive, because a high spatial turnover in species composition was closely related to a high spatial turnover in functions that were supported at high levels. Our findings have major implications for forest management and indicate that biotic homogenization can have previously unrecognized and negative consequences for large-scale ecosystem multifunctionality

Published
2016

41. Valence, not utility, underlies reward-driven prioritization in human vision

Author

Barbaro, L., Peelen, M.V., Hickey, C., Barbaro, L., Peelen, M.V., and Hickey, C.

Abstract

Contains fulltext : 178566.pdf (publisher's version ) (Open Access), Objects associated with reward draw attention and evoke enhanced activity in visual cortex. What is the underlying mechanism? One possibility is that reward's impact on vision is mediated by unique circuitry that modulates sensory processing, selectively increasing the salience of reward-associated stimuli. Alternatively, effects of reward may be part of a more general mechanism that prioritizes the processing of any beneficial object, importantly including stimuli that are associated with the evasion of loss. Here, we test these competing hypotheses by having male and female humans detect naturalistic objects associated with monetary reward, the evasion of equivalent loss, or neither of these. If vision is economically normative, processing of objects associated with reward and evasion of loss should be prioritized relative to neutral stimuli. Results from fMRI and behavioral experiments show that this is not the case: whereas objects associated with reward were better detected and represented in ventral visual cortex, detection and representation of stimuli associated with the evasion of loss were degraded. Representations in parietal cortex reveal a notable exception to this pattern, showing enhanced encoding of both reward- and loss-associated stimuli. Experience-driven visual prioritization can thus be economically irrational, driven by valence rather than objective utility.

Published
2017

42. Continental mapping of forest ecosystem functions reveals a high but unrealised potential for forest multifunctionality

Author

van der Plas, F., Ratcliffe, S., Ruiz-Benito, P., Scherer-Lorenzen, M., Verheyen, K., Wirth, C., Zavala, M.A., Ampoorter, E., Baeten, L., Barbaro, L., Bastias, C.C., Bauhus, J., Benavides, R., Benneter, A., Bonal, D., Bouriaud, O., Bruelheide, H., Bussotti, F., Carnol, M., Castagneyrol, B., Charbonnier, Y., Cornelissen, J.H.C., Dahlgren, J., Checko, E., Coppi, A., Dawud, S.M., Deconchat, M., De Smedt, P., De Wandeler, H., Domisch, T., Finér, L., Fotelli, M., Gessler, A., Granier, A., Grossiord, C., Guyot, V., Haase, J., Hättenschwiler, S., Jactel, H., Jaroszewicz, B., Joly, F.-X., Jucker, T., Kambach, Stephan, Kaendler, G., Kattge, J., Koricheva, J., Kunstler, G., Lehtonen, A., Liebergesell, M., Manning, P., Milligan, H., Müller, S., Muys, B., Nguyen, D., Nock, C., Ohse, B., Paquette, A., Peñuelas, J., Pollastrini, M., Radoglou, K., Raulund-Rasmussen, K., Roger, F., Seidl, R., Selvi, F., Stenlid, J., Valladares, F., van Keer, J., Vesterdal, L., Fischer, M., Gamfeldt, L., Allan, E., van der Plas, F., Ratcliffe, S., Ruiz-Benito, P., Scherer-Lorenzen, M., Verheyen, K., Wirth, C., Zavala, M.A., Ampoorter, E., Baeten, L., Barbaro, L., Bastias, C.C., Bauhus, J., Benavides, R., Benneter, A., Bonal, D., Bouriaud, O., Bruelheide, H., Bussotti, F., Carnol, M., Castagneyrol, B., Charbonnier, Y., Cornelissen, J.H.C., Dahlgren, J., Checko, E., Coppi, A., Dawud, S.M., Deconchat, M., De Smedt, P., De Wandeler, H., Domisch, T., Finér, L., Fotelli, M., Gessler, A., Granier, A., Grossiord, C., Guyot, V., Haase, J., Hättenschwiler, S., Jactel, H., Jaroszewicz, B., Joly, F.-X., Jucker, T., Kambach, Stephan, Kaendler, G., Kattge, J., Koricheva, J., Kunstler, G., Lehtonen, A., Liebergesell, M., Manning, P., Milligan, H., Müller, S., Muys, B., Nguyen, D., Nock, C., Ohse, B., Paquette, A., Peñuelas, J., Pollastrini, M., Radoglou, K., Raulund-Rasmussen, K., Roger, F., Seidl, R., Selvi, F., Stenlid, J., Valladares, F., van Keer, J., Vesterdal, L., Fischer, M., Gamfeldt, L., and Allan, E.

Abstract

Humans require multiple services from ecosystems, but it is largely unknown whether trade-offs between ecosystem functions prevent the realisation of high ecosystem multifunctionality across spatial scales. Here, we combined a comprehensive dataset (28 ecosystem functions measured on 209 forest plots) with a forest inventory dataset (105,316 plots) to extrapolate and map relationships between various ecosystem multifunctionality measures across Europe. These multifunctionality measures reflected different management objectives, related to timber production, climate regulation and biodiversity conservation/recreation. We found that trade-offs among them were rare across Europe, at both local and continental scales. This suggests a high potential for ‘win-win’ forest management strategies, where overall multifunctionality is maximised. However, across sites, multifunctionality was on average 45.8-49.8% below maximum levels and not necessarily highest in protected areas. Therefore, using one of the most comprehensive assessments so far, our study suggests a high but largely unrealised potential for management to promote multifunctional forests.

Published
2017

43. Osteoporosis's Menopausal Epidemiological Risk Observation (O.M.E.R.O.) study

Author

Lello, Stefano, Sorge, Roberto, Surico, Nicola, OMERO Study Group, Tranquilli, A, Turi, A, Agostinelli, D, Messini, S, Gambera, A, Stomati, M, Paoletti, Am, Sanna, S, Durante, M, Roccu, I, Scollo, P, Nocera, F, Ronca, E, Bucciantini, S, Baldi, S, Nosari, S, Marra, A, D'Anna, R, Barbaro, L, Mapelli, C, Chionna, R, Cagnacci, A, Di Carlo, C, Nappi, C, Leo, L, Pandolfo, M, Nappi, R, Tonani, S, Becorpi, A, Santilli, C, Maffei, S, Del Bravo, B, Gambacciani, M, Amorosi, A, Mantuano, R, Pasi, A, Guardianelli, F, Capozzi, A, Frantellizzi, R, Scambia, G, Villa, P, Zaza, M, Percuoco, R, Leoni, F, Dessole, S, Capobianco, G, Benedetto, C, Gallo, M, Marchesoni, D, Della Martina, M., Lello, Stefano, Sorge, Roberto, Surico, Nicola, and Nappi, Carmine

Subjects
FRAX, Bone density, Endocrinology, Diabetes and Metabolism, Osteoporosis, menopause, FRAX®, FRAX, menopause, osteoporosis, reg, Body Mass Index, osteoporosis, Fractures, Bone, Endocrinology, Quality of life, Cost of Illness, Bone Density, Risk Factors, Epidemiology, osteoporosi, Prospective Studies, Osteoporosis, Postmenopausal, Societies, Medical, Obstetrics, Obstetrics and Gynecology, Middle Aged, Algorithm, Diabetes and Metabolism, Menopause, Italy, Female, Algorithms, Human, medicine.medical_specialty, Osteoporotic Fracture, Hip Fracture, medicine, Humans, Aged, Probability, Gynecology, business.industry, Hip Fractures, Risk Factor, medicine.disease, Cost of Illne, Osteopenia, Prospective Studie, Bone Diseases, Metabolic, OSTEOPOROSIS RISK, business, Body mass index, Osteoporotic Fractures
Abstract

Osteoporosis (OP) and related fractures are well-known severe conditions affecting quality of life and life expectancy of postmenopausal women, with high economic costs in Europe. On behalf of The Italian Society of Gynecology and Obstetrics (Società Italiana di Ginecologia ed Ostetricia, SIGO), the Osteoporosis's Menopausal Epidemiological Risk Observation (O.M.E.R.O.) study, a national multicenter study on clinical risk factors of OP was organized, using FRAX® tool as a reference. Here, data from this study are presented, showing an important portion of Italian postmenopausal women affected by osteopenia/OP at high risk of fracture and the need to do prevention and/or treatment. Gynecologist can be a primary specialist in this important challenge.

Published
2015

45. EGF receptor-targeting peptide conjugate incorporating a near-IR fluorescent dye and a novel 1,4,7-triazacyclononane-based 64Cu(II) chelator assembled via click chemistry

Author

Viehweger, K., Barbaro, L., Pombo García, K., Joshi, T., Geipel, G., Steinbach, J., Stephan, H., Spiccia, L., and Graham, B.

Abstract

A new Boc-protected 1,4,7-triazacyclononane (TACN)-based pro-chelator compound featuring a “clickable” azidomethylpyridine pendant has been developed as a building block for the construction of multimodal imaging agents. Conjugation to a model alkyne (propargyl alcohol), followed by deprotection, generates a pentadentate ligand, as confirmed by X-ray crystallographic analysis of the corresponding distorted square-pyramidal Cu(II) complex. The ligand exhibits rapid 64Cu2+-binding kinetics (> 95% radiochemical yield in < 1 min) and a high resistance to demetallation. It may thus prove suitable for use in 64Cu-based in vivo positron emission tomography (PET). The new chelating building block has been applied to the construction of a bimodal (PET/fluorescence) peptide-based imaging probe targeting the epidermal growth factor (EGF) receptor, which is highly over-expressed on the surface of several types of cancer cells. The probe consists of a hexapeptide sequence, Leu-Ala-Arg-Leu-Leu-Thr (designated “D4”), coupled to a β-homopropargylglycine residue with the TACN-based chelator “clicked” to its side chain, followed by a Cys-β-Ala-β-Ala spacer. A sulfonated near-infrared (NIR) fluorescent cyanine dye (sulfo-Cy5) was introduced at the N-terminus to study the EGF receptor-binding ability of the probe by laser-fluorescence spectroscopy. Binding was also confirmed by co-immunoprecipitation methods, and an apparent dissociation constant (Kd) of ca. 10 nM was determined from radioactivity-based measurements of probe binding to two EGF receptor-expressing cell lines (FaDu and A431). The probe is shown to be a biased or partial allosteric agonist of the EGF receptor, inducing phosphorylation of Thr669 and Tyr992, but not the Tyr845, Tyr998, Tyr1045, Tyr1068 or Tyr1148 residues of the receptor, in the absence of the orthosteric EGF ligand. Additionally, the probe was found to suppress the EGF-stimulated autophosphorylation of these latter residues, indicating that it is also a non-competitive antagonist.

Published
2014

46. ATLID, ESA atmospheric LIDAR: integration of instrument and tests

Author

Sodnik, Zoran, Karafolas, Nikos, Cugny, Bruno, de Villele, G., Pereira do Carmo, J., Helière, A., Lefebvre, A., Barbaro, L., Belhadj, T., Chassat, F., Corselle, B., Evin, R., Feral, M., Levret, I., Lingot, P., Olivier, F., Pelletier, S., Pochet, J., Schaube, A., Varlet, F., and Vlimant, P.

Published
2019
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48. Zwitterionic-Coated 'Stealth' Nanoparticles for Biomedical Applications: Recent Advances in Countering Biomolecular Corona Formation and Uptake by the Mononuclear Phagocyte System

Author

Pombo Garcia, K., Zarschler, K., Barbaro, L., Barreto, J. A., O'Malley, W., Spiccia, L., Stephan, H., Graham, B., Pombo Garcia, K., Zarschler, K., Barbaro, L., Barreto, J. A., O'Malley, W., Spiccia, L., Stephan, H., and Graham, B.

Abstract

Nanoparticles represent highly promising platforms for the development of imaging and therapeutic agents, including those that can either be detected via more than one imaging technique (multi-modal imaging agents) or used for both diagnosis and therapy (theranostics). A major obstacle to their medical application and translation to the clinic, however, is the fact that many accumulate in the liver and spleen as a result of opsonization and scavenging by the mononuclear phagocyte system. This focused Review summarizes recent efforts to develop zwitterionic-coatings to counter this issue and render nanoparticles more biocompatible. Such coatings have been found to greatly reduce the rate and/or extent of non-specific adsorption of proteins and lipids to the nanoparticle surface, thereby inhibiting production of the "biomolecular corona" that is proposed to be a universal feature of nanoparticles within a biological environment. Additionally, in vivo studies have demonstrated that larger-sized nanoparticles with a zwitterionic coating have extended circulatory lifetimes, while those with hydrodynamic diameters of <= 5 nm exhibit small-molecule-like pharmacokinetics, remaining sufficiently small to pass through the fenestrae and slit pores during glomerular filtration within the kidneys, and enabling efficient excretion via the urine. The larger particles represent ideal candidates for use as blood pool imaging agents, whilst the small ones provide a highly promising platform for the future development of theranostics with reduced side effect profiles and superior dose delivery and image contrast capabilities.

Published
2014

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