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  • 7601.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Arnoud, Y
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Barker,
    Uppsala University.
    Charged particle multiplicity in e(+)e(-)-> q(q)over-bar events at 161 and 172 GeV and from the decay of the W boson1998In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 416, no 1-2, p. 233-246Article in journal (Other scientific)
    Abstract [en]

    The data collected by DELPHI in 1996 have been used to measure the average charged particle multiplicities and dispersions in q (q) over bar events at centre-of-mass energies of root s = 161 GeV and root s = 172 GeV, and the average charge multiplicity in

  • 7602.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Arnoud, Y
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barbi, M
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Barker, G
    Uppsala University.
    Baronc,
    Uppsala University.
    Search for charginos, neutralinos and gravitinos at LEP1998In: EUROPEAN PHYSICAL JOURNAL C, ISSN 1434-6044, Vol. 1, no 1-2, p. 1-20Article in journal (Other scientific)
    Abstract [en]

    An update of the searches for charginos and neutralinos in DELPHI is presented, based mainly on recent data collected at centre-of-mass energies of 161 GeV and 172 GeV. No signal is found. For a sneutrino with mass above 300 GeV/c(2) and a mass difference

  • 7603.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Barbiellini, G
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Ba,
    Uppsala University.
    A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV1997In: ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, ISSN 0170-9739, Vol. 75, no 4, p. 581-592Article in journal (Other scientific)
    Abstract [en]

    A study of the channel e(+)e(-) --> mu(+)mu(-)gamma ISR, where gamma ISR is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1994. The total cross-section at effective annihilation: energies (root

  • 7604.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Barbiellini, G
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Ba,
    Uppsala University.
    Measurement of correlations between pions from different W's in e(+)e(-)->W+W- events1997In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 401, no 1-2, p. 181-191Article in journal (Other scientific)
    Abstract [en]

    Correlations between pions from different W's in e(+)e(-) --> W+W- events are studied using data collected by the DELPHI detector at LEP running at a centre-of-mass energy of 172 GeV in 1996. At the present level of statistics, no enhancement of the corre

  • 7605.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Barbiellini, G
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Ba,
    Uppsala University.
    Measurement of the multiplicity of gluons splitting to bottom quark pairs in hadronic Z(0) decays1997In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 405, no 1-2, p. 202-214Article in journal (Other scientific)
    Abstract [en]

    An inclusive measurement of the average multiplicity of b (b) over bar pairs from gluons, g(b (b) over bar), in hadronic Z(0) events collected by the DELPHI experiment at LEP, is presented. A counting technique, based on jet b-tagging in 4-jet events, has

  • 7606.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Barker, G
    Uppsala University.
    Baronce,
    Uppsala University.
    Measurement of the transverse spin correlation in Z->tau(+)tau(-) decays1997In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 404, no 1-2, p. 194-206Article in journal (Other scientific)
    Abstract [en]

    The measurement of the correlation between the transverse spin components of tau(+)tau(-) pairs collected during 1992 to 1994 with the DELPHI detector at LEP1 is presented. A value C-TT = 0.87 +/- 0.20 (stat.)(-0.12)(+0.10) (syst.) was obtained for the co

  • 7607.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Agustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Barbiellini, G
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Bar,
    Uppsala University.
    Search for the B-c meson1997In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 398, no 1-2, p. 207-222Article in journal (Other scientific)
    Abstract [en]

    In a sample of 3.02 million hadronic Z(0) decays collected by the DELPHI detector, 270 J/psi --> e(+)e(-) candidates have been selected. A search for fully reconstructed B-c(+/-) mesons has yielded one B-c(+/-) --> J/psi pi(+/-) candidate, no B-c(+/-) -->

  • 7608.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barate, R
    Uppsala University.
    Barbi, M
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Barker,
    Uppsala University.
    Search for excited leptons in e(+)e(-) collisions at root s=161 GeV1997In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 393, no 1-2, p. 245-260Article in journal (Other scientific)
    Abstract [en]

    A search with the DELPHI detector at LEP for excited leptons (e*, mu*, tau* and nu*) decaying through gamma, W or Z transitions is reported. The data used correspond to an integrated luminosity of 10 pb(-1) e(+)e(-) centre-of-mass energy at an e of 161 Ge

  • 7609.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barate, R
    Uppsala University.
    Barbi, M
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Baronce,
    Uppsala University.
    A precise measurement of the B-d(0) meson lifetime using a new technique1997In: ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, ISSN 0170-9739, Vol. 74, no 1, p. 19-32Article in journal (Other scientific)
    Abstract [en]

    From data recorded by DELPHI between 1991 and 1994, which corresponds to 3.2 million hadronic Z(0) decays, a measurement of the <(B-d(0))over bar> meson lifetime, based on the inclusive reconstruction of 3520 +/- 150 semileptonic decays of the type <(B-d(

  • 7610.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barate, R
    Uppsala University.
    Barbi, M
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Baronce,
    Uppsala University.
    An upper limit for Br(Z(0)->ggg) from symmetric 3-jet Z(0) hadronic decays1996In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 389, no 2, p. 405-415Article in journal (Other scientific)
    Abstract [en]

    An upper limit for BR(Z(0) --> 3g) is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle multiplicity distributions. From the sample of threefold symmetric t

  • 7611.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barate, R
    Uppsala University.
    Barbi, M
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Baronce,
    Uppsala University.
    Tuning and test of fragmentation models based on identified particles and precision event shape data1996In: ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, ISSN 0170-9739, Vol. 73, no 1, p. 11-59Article in journal (Other scientific)
    Abstract [en]

    Event shape and charged particle inclusive distributions are measured using 750000 decays of the Z to hadrons from the DELPHI detector at LEP, These precise data allow a decisive confrontation with models of the hadronization process, Improved tunings of

  • 7612.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Barbiellini, G
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Ba,
    Uppsala University.
    A measurement of alpha(s) from the scaling violation in e(+)e(-) annihilation1997In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 398, no 1-2, p. 194-206Article in journal (Other scientific)
    Abstract [en]

    The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from Z(0) decays with the DELPHI detector and are compared with the fragmentation functions measured elsewhere at e

  • 7613.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Barbiellini, G
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Ba,
    Uppsala University.
    Identified particles in quark and gluon jets1997In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 401, no 1-2, p. 118-130Article in journal (Other scientific)
    Abstract [en]

    A sample of about 1.4 million hadronic Z decays, selected among the data recorded by the DELPHI detector at LEP during 1994, was used to measure for the first time the momentum spectra of K+, K-0, p, Lambda and their antiparticles in gluon and quark jets.

  • 7614.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Barbiellini, G
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Ba,
    Uppsala University.
    Search for neutral heavy leptons produced in Z decays1997In: ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, ISSN 0170-9739, Vol. 74, no 1, p. 57-71Article in journal (Other scientific)
    Abstract [en]

    Weak isosinglet Neutral Heavy Leptons (nu(m)) have been searched for using data collected by the DELPHI detector corresponding to 3.3 x 10(6) hadronic Z(0) decays at LEP1. Four separate searches have been performed, for short-lived nu(m) production giving

  • 7615.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Barbiellini, G
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Ba,
    Uppsala University.
    Search for stable heavy charged particles in e(+)e(-) collisions at root s=130-136, 161 and 172 GeV1997In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 396, no 1-4, p. 315-326Article in journal (Other scientific)
    Abstract [en]

    A search for stable or long-lived heavy charged particles in e(+)e(-) interactions at energies of 130-136, 161 and 172 CeV has been performed using the data taken by the DELPHI experiment at LEP. The search is based on particle identification provided by

  • 7616.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andrieux, ML
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Barker, G
    Uppsala University.
    Baronce,
    Uppsala University.
    Rapidity correlations in Lambda baryon and proton production in hadronic Z(0) decays1998In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 416, no 1-2, p. 247-256Article in journal (Other scientific)
    Abstract [en]

    In an analysis of multihadronic events recorded at LEP by DELPHI in the years 1992 through 1994, rapidity correlations of Lambda-Lambda, proton-proton, and Lambda-proton pairs are compared with each other and with the predictions of the string fragmentati

  • 7617.
    Abreu, P
    et al.
    Uppsala University.
    Adam, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Arnoud, Y
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Barbi, M
    Uppsala University.
    Barbiellini, G
    Uppsala University.
    Bardin, DY
    Uppsala University.
    Bark,
    Uppsala University.
    Measurement of the spin density matrix for the rho(0), K*(0)(892) and phi produced in Z(0) decays1997In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 406, no 3, p. 271-286Article in journal (Other scientific)
    Abstract [en]

    The spin density matrix elements for the rho(0), K-*0(892) and phi produced in hadronic Z(0) decays are measured in the DELPHI detector. There is no evidence for spin alignment of the K-*0(892) and phi, in the region x(p) less than or equal to 0.3 (x(p) =

  • 7618.
    Abreu, P
    et al.
    Uppsala University.
    Adan, W
    Uppsala University.
    Adye, T
    Uppsala University.
    Adzic, P
    Uppsala University.
    Albrecht, Z
    Uppsala University.
    Alderweireld, T
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allmendinger, T
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amapane, N
    Uppsala University.
    Amato, S
    Uppsala University.
    Anassontzis, EG
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andringa, S
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Arnoud, Y
    Uppsala University.
    Asman, B
    Uppsala University.
    Augus,
    Uppsala University.
    Energy dependence of inclusive spectra in e(+)e(-) annihilation1999In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 459, no 1-3, p. 397-411Article in journal (Other scientific)
    Abstract [en]

    Inclusive charged hadron distributions as obtained from the DELPHI measurements at 130, 136, 161, 172 and 183 GeV are presented as a function of the variables rapidity, xi(p), p and transversal momenta. Data are compared with event generators and with MLL

  • 7619.
    Abreu, P
    et al.
    Uppsala University.
    Adye, T
    Uppsala University.
    Adzic, P
    Uppsala University.
    Ajinenko, I
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amato, S
    Uppsala University.
    Anassontzis, EG
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andringa, S
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Arnoud, Y
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Augustinus, A
    Uppsala University.
    Baillon, P
    Uppsala University.
    Bambade, P
    Uppsala University.
    Barao, F
    Uppsala University.
    Search for pair-produced neutralinos in events with photons and missing energy from e(+)e(-) collisions at root s = 130-183 GeV1999In: EUROPEAN PHYSICAL JOURNAL C, ISSN 1434-6044, Vol. 6, no 3, p. 371-384Article in journal (Other scientific)
    Abstract [en]

    The events with two photons and missing (transverse) energy collected by the DELPHI detector at centre-of-mass energies between 130 GeV and 183 GeV have been studied to search for processes of the type e(+)e(-) --> YY with the subsequent decay Y --> X gam

  • 7620.
    Abreu, P
    et al.
    Uppsala University.
    Adye, T
    Uppsala University.
    Adzic, P
    Uppsala University.
    Albrecht, Z
    Uppsala University.
    Alderweireld, T
    Uppsala University.
    Alekseev, GD
    Uppsala University.
    Alemany, R
    Uppsala University.
    Allmendinger, T
    Uppsala University.
    Allport, PP
    Uppsala University.
    Almehed, S
    Uppsala University.
    Amaldi, U
    Uppsala University.
    Amapane, N
    Uppsala University.
    Amato, S
    Uppsala University.
    Anassontzis, EG
    Uppsala University.
    Andersson, P
    Uppsala University.
    Andreazza, A
    Uppsala University.
    Andringa, S
    Uppsala University.
    Antilogus, P
    Uppsala University.
    Apel, WD
    Uppsala University.
    Arnoud, Y
    Uppsala University.
    Asman, B
    Uppsala University.
    Augustin, JE
    Uppsala University.
    Measurement of the mass of the W boson using direct reconstruction at root s=183 GeV1999In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 462, no 3-4, p. 410-424Article in journal (Other scientific)
    Abstract [en]

    From data corresponding to an integrated luminosity of 53.5 pb(-1) taken during the 183 GeV run in 1997, DELPHI has measured the W mass from direct reconstruction of WW --> l<(nu)over bar>q (q) over bar and WW --> q (q) over bar q (q) over bar events. Com

  • 7621. Abreu, P.
    et al.
    Botner, Olga
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences.
    Ekelöf, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences.
    Hallgren, Allan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences.
    Kulka, K.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences.
    Medbo, J.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences.
    Woschnagg, K.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences.
    Zumerle, G.
    Measurement of the GAMMA(B-B-OVER-BAR)/GAMMA(HAD) branching ratio of thez by double hemisphere tagging1995In: Zeitschrift für Physik C Particles and Fields, ISSN 0170-9739, E-ISSN 1431-5858, Vol. 65, no 4, p. 555-568p. 555-568Article in journal (Refereed)
    Abstract [en]

    Two measurements of Γbbˉ/Γhad are presented. Both measurements use 250000Z decays taken with the DELPHI detector in 1991 and rely mainly on the precision of the microvertex detector. One tagging method is as simple as possible so that background rates can be reliably predicted by simulation. The other one uses a more involved tagging technique and reduces the dependence on simulation as much as possible. Combining both results, Γbbˉ/Γhad is found to be 0.2209±0.0041(stat.)±0.0042(syst.)±0.0018 Γccˉ .

  • 7622. Abreu, P C
    et al.
    Granéli, Edna
    University of Kalmar, School of Pure and Applied Natural Sciences.
    Odebrecht, C
    Kitzmann, D
    Proença, L A
    Resgalla Jr, C
    Effect of fish and mesozooplankton manipulation on the phytoplankton community in the Patos Lagoon Estuary, Southern Brazil1994In: Estuaries, Vol. 17, p. 575-584Article in journal (Refereed)
  • 7623.
    Abreu, Rafael
    et al.
    Westfalische Wilhelms Univ Munster, Inst Geophys, Corrensstr 24, D-48149 Munster, Germany.;Univ Granada, Inst Andaluz Geofis, Campus Cartuja S-N, E-18071 Granada, Spain..
    Kamm, Jochen
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Geophysics. Westfalische Wilhelms Univ Munster, Inst Geophys, Corrensstr 24, D-48149 Munster, Germany.
    Reiss, Anne-Sophie
    Westfalische Wilhelms Univ Munster, Inst Geophys, Corrensstr 24, D-48149 Munster, Germany..
    Micropolar modelling of rotational waves in seismology2017In: Geophysical Journal International, ISSN 0956-540X, E-ISSN 1365-246X, Vol. 210, no 2, p. 1021-1046Article in journal (Refereed)
    Abstract [en]

    In this contribution we study elastic wave propagation via the introduction of the micropolar theory. As a generalization of a classical linear elastic medium, a micropolar medium allows each particle to have intrinsic rotational degrees of freedom (spin). We perform numerical experiments using the Pseudospectral method. We find analytical harmonic micropolar solutions for different problem configurations, which result in waveform differences between the classical linear elastic and micropolar media. In contrast to linear elastic media, wave propagation in micropolar media is dispersive. We study how the spin waveform depends on the micropolar elastic parameters and frequency content of the simulation. The micropolar effect on numerical seismograms has a direct implication on the phase, amplitude and arrival time. For frequencies lower than the cut-off frequency, the spin waveform has the same amplitude as the macrorotation field. For frequencies higher than the cut-off frequency, the amplitude of the spin waveform decreases with increasing frequency, so that then it is no longer comparable to the amplitude of macroscopic rotations. When both frequencies are equal there is no wave propagation. This work attempts to clarify the theory of micropolar media for its applications in seismology. We argue that micropolar theory should be further investigated for its potential uses in seismology to, for example, describe energy dissipation, seismograms recorded with rotational seismometers and rupture processes.

  • 7624.
    Abreu, Rodrigo
    et al.
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis, NA (closed 2012-06-30).
    Jansson, Niclas
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis, NA (closed 2012-06-30).
    Hoffman, Johan
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis, NA (closed 2012-06-30).
    Adaptive computation of aeroacoustic sources for a rudimentary landing gear using lighthill's analogy2011In: 17th AIAA/CEAS AeroacousticsConference 2011: 32nd AIAA Aeroacoustics Conference, 2011Conference paper (Refereed)
    Abstract [en]

    We present our simulation results for the benchmark problem of the ow past a Rudimentary Landing Gear (RLG) using a General Galerkin (G2) nite element method, also referred to as Adaptive DNS/LES. In G2 no explicit subgrid model is used, instead the compuational mesh is adaptively re ned with respect to an a posteriori error es-timate of a quantity of interest in the computation, in this case the drag force on the RLG. Turbulent boundary layers are modeled using a simple wall layer model with the shear stress at walls proportional to the skin friction, which here is assumed to be small and, therefore, can be approximated by zero skin friction. We compare our results with experimental data and other state of the art computations, where we nd good agreement in sound pressure levels, surface velocities and ow separation. We also compare with detailed surface pressure experimental data where we nd largely good agreement, apart from some local dierences for which we discuss possible explanations.

  • 7625.
    Abreu Saraiva Freitas, Iuri
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Indoor climate: A comparison of residential units in Tjärna Ängar, Borlänge before and after retrofitting2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study try to understand which aspects were fundamental to indoor climate and how to obtain them in order to provide the best possible experience in the thermal comfort of individuals. Thus, arose the studies of Fanger, which was the seed for a new era of discoveries in the area and founded the knowledge our society have today in this globally used standards and norms. Referring to these fundamental aspects of the indoor comfort, data collection was taken in situ to show in details what was happening. This study was executed in order to demonstrate the differences between the data previous and after a process of retrofitting in dwellings built in the 60s and 70s of the century past, in the district of Tjärna Ängar, Borlänge, Sweden. The comparative results using criteria such as Predicted Mean Vote (PMV), Predicted Percentage Dissatisfied (PPD), Draft Rate (DR), air velocity, Mean Radiant Temperature (MRT), Relative Humidity (RH) and air temperature, showed an improvement in 6 of the 8 parameters analyzed. Confirming the expectation that through the retrofitting the residents will be more satisfied, obtain better quality of indoor climate comfort and also increase occupied area in these dwellings.

  • 7626.
    Abreu-Vieira, Gustavo
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Regulation and measurement of brown adipose tissue blood flow2014Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Brown adipose tissue (BAT) is an organ specialized in macromolecule combustion in order to produce heat. Because of its high capacity to dissipate energy, it is currently among the best hopes for future treatments of obesity and diabetes. BAT is permeated by a vast capillary network that delivers blood rich in oxygen and nutrients to supply the high metabolic needs of the tissue. At the same time, metabolites, carbon dioxide and warm blood are drained back into systemic circulation. Blood flow is in fact a limiting factor for thermogenesis. Therefore, understanding BAT blood flow regulation is a crucial step for describing the tissue function. This thesis aims to summarize anatomical descriptions, to discuss the methodological evolution of the field, and to synthetize what we have learned about mechanistic regulation of BAT blood flow during the last half century. Manuscript I introduces a new method (high-resolution laser-doppler imaging) for the measurement of BAT blood flow, and gives mechanistic insights about its physiological regulation. Manuscript II focuses on the influence of bombesin receptor subtype-3 on the neurological control of body temperature and thermogenesis.

  • 7627.
    Abreu-Vieira, Gustavo
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Thermal physiology and metabolism: Interplay between heat generation and energy homeostasis2015Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Mammal metabolism is intimately connected to the maintenance of body temperature. While metabolic pathways invariably produce heat as a by-product, the natural heat present in the environment also plays a role in defining the adaptive metabolism and general physiology of an organism. This thesis aims to discuss basic aspects of energy expenditure and their interactions with energy stores and body composition. In Paper I, we apply a new technique – high-resolution laser-Doppler imaging – to describe physiological regulatory features of adrenergically-stimulated blood flow in brown adipose tissue, and evaluate the validity of blood flow as a parameter to estimate nonshivering thermogenesis. Paper II focuses on the central regulation of body temperature. In the absence of bombesin receptor subtype-3, mice present an altered neurological body temperature setpoint, while peripheral thermogenic capacity remains intact. We conclude that brown adipose tissue malfunction is not the cause of the hypothermia observed in this mouse model. Paper III incorporates measurements of body temperature to the energy expenditure of different sources: basal metabolic rate, physical activity, thermic effect of food, and cold-induced thermogenesis. We describe basic aspects of dynamic insulation, energetic costs of circadian variation and hypothesize that physical activity may change the body temperature setpoint. Paper IV describes methodological issues related to glucose tolerance tests in obese mice. We conclude that the erroneous scaling of doses may affect the interpretation of metabolic health in mouse models, and suggest a new methodology. Paper V describes the outcomes caused by the expression of the human Cidea protein in adipose tissue of mice and suggests that this protein may clarify the link between adipose tissue expansion and healthy obesity. Paper VI explores the dissociation between thiazolidinedione-induced adipose tissue “browning” and reduced blood glycaemia. We demonstrate that although this pharmacological class tends to induce some level of brown adipose tissue recruitment, this phenomenon does not define its antidiabetic effects.

  • 7628.
    Abreu-Vieira, Gustavo
    et al.
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Bengtsson, Tore
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Petrovic, Natasa
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Nedergaard, Jan
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    On adequate procedures for glucose tolerance tests in obese animals: Measurement of glucose tolerance in obesityManuscript (preprint) (Other academic)
    Abstract [en]

    Routine procedures for glucose tolerance test in rodents utilize an amount of injected glucose that is proportional to total body weight (normally 2 mg per g body weight). Obese mice consist of much more chemically inert lipid than lean mice but have only marginal increases in lean body mass (the only compartment where glucose is distributed). Present procedures thus inevitably lead to a diagnosis of impaired glucose tolerance and enhanced insulin levels in obesity. Routine procedures should use fixed glucose amounts per lean body mass (or per mouse).

  • 7629.
    Abreu-Vieira, Gustavo
    et al.
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Fischer, Alexander W.
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute. University of Hamburg, Germany.
    Mattsson, Charlotte
    de Jong, Jasper M. A.
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Shabalina, Irina G.
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Ryden, Mikael
    Laurencikiene, Jurga
    Arner, Peter
    Cannon, Barbara
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Nedergaard, Jan
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Petrovic, Natasa
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Cidea improves the metabolic profile through expansion of adipose tissue2015In: Nature Communications, ISSN 2041-1723, E-ISSN 2041-1723, Vol. 6, article id 7433Article in journal (Refereed)
    Abstract [en]

    In humans, Cidea (cell death-inducing DNA fragmentation factor alpha-like effector A) is highly but variably expressed in white fat, and expression correlates with metabolic health. Here we generate transgenic mice expressing human Cidea in adipose tissues (aP2-hCidea mice) and show that Cidea is mechanistically associated with a robust increase in adipose tissue expandability. Under humanized conditions (thermoneutrality, mature age and prolonged exposure to high-fat diet), aP2-hCidea mice develop a much more pronounced obesity than their wild-type littermates. Remarkably, the malfunctioning of visceral fat normally caused by massive obesity is fully overcome-perilipin 1 and Akt expression are preserved, tissue degradation is prevented, macrophage accumulation is decreased and adiponectin expression remains high. Importantly, the aP2-hCidea mice display enhanced insulin sensitivity. Our data establish a functional role for Cidea and suggest that, in humans, the association between Cidea levels in white fat and metabolic health is not only correlative but also causative.

  • 7630.
    Abreu-Vieira, Gustavo
    et al.
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Hagberg, Carolina E.
    Spalding, Kirsty L.
    Cannon, Barbara
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Nedergaard, Jan
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Adrenergically-stimulated blood flow in brown adipose tissue is not dependent on thermogenesis: Regulation of brown adipose tissue blood flow2015In: American Journal of Physiology. Endocrinology and Metabolism, ISSN 0193-1849, E-ISSN 1522-1555, Vol. 308, no 9, p. E822-E829Article in journal (Refereed)
    Abstract [en]

    Brown adipose tissue (BAT) thermogenesis relies on blood flow to be supplied with nutrients and oxygen, and for the distribution of the generated heat to the rest of the body. It is therefore fundamental to understand the mechanisms by which blood flow is regulated and its relation to thermogenesis. Here we present high-resolution laser-Doppler imaging (HR-LDR) as a novel method for noninvasive, in vivo measurement of BAT blood flow in mice. Using HR-LDR, we found that norepinephrine stimulation increases BAT blood flow in a dose-dependent manner, and that this response is profoundly modulated by environmental temperature acclimation. Surprisingly, we found that mice lacking uncoupling protein 1 (UCP1) have fully preserved BAT blood flow response to norepinephrine, despite failing to perform thermogenesis. BAT blood flow was not directly correlated to systemic glycaemia, but glucose injections could transiently increase tissue perfusion. Inguinal white adipose tissue, also known as a brite/beige adipose tissue, was also sensitive to cold acclimation and similarly increased blood flow in response to norepinephrine. In conclusion, using a novel non-invasive method to detect BAT perfusion, we demonstrate that adrenergically-stimulated BAT blood flow is qualitatively and quantitatively fully independent of thermogenesis, and is therefore not a reliable parameter for the estimation of BAT activation and heat generation.

  • 7631.
    Abreu-Vieira, Gustavo
    et al.
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Kalinovich, Anastasia
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Cannon, Barbara
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Nedergaard, Jan
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
    Novel thiazolidinediones distinguish between (UCP1-independent) antidiabetic effects (MSDC-0602) and adipogenic and browning-inducing effects (MSDC-0160) of classical thiazolidinediones (rosiglitazone)Manuscript (preprint) (Other academic)
    Abstract [en]

    Thiazolinediones (TZDs), also called glitazones, are a class of drugs traditionally used forimproving glucose tolerance in type II diabetes mellitus. The beneficial effects ofthiazolidinedione are believed to be caused by the drug binding to the nuclear receptor PPARγ,which in turn triggers a general adipogenic program in white adipose tissue, and apparentthermogenic recruitment of brown and brite/beige fat. Here, we present a comparison of thephysiological effects of three thiazolidinediones (rosiglitazone, MSDC-0602, and MSDC-0160)in C57BL/6 mice fed high-fat diet and housed at thermoneutrality. Rosiglitazone and MSDC-0160 caused the classically-described thiazolidinedione effects of increased fat mass,hyperphagia, and increased UCP1 levels in brown adipose tissue. MSDC-0602 and rosiglitazoneimproved glucose tolerance but MSDC-0602 did not induce increased fat mass, hyperphagia, orincreased UCP1 levels in brown fat. The beneficial effects of thiazolidinediones were fullypresent even in UCP1-KO mice, providing evidence for a dissociation between thiazolidinedioneinducedadipose tissue browning and their antidiabetic effects. We conclude that even structurallysimilar thiazolidinediones can act through distinct pathways, and that the glucose-loweringeffects of this class do not seem to rely on PPAR-γ-induced browning of adipose tissues.

  • 7632.
    Abreu-Vieira, Gustavo
    et al.
    Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute. National Institute of Diabetes and Digestive and Kidney Diseases, NIH, USA.
    Xiao, Cuiying
    Gavrilova, Oksana
    Reitman, Marc L.
    Integration of body temperature into the analysis of energy expenditure in the mouse2015In: Molecular Metabolism, ISSN 2212-8778, Vol. 4, no 6, p. 461-470Article in journal (Refereed)
    Abstract [en]

    Objectives: We quantified the effect of environmental temperature on mouse energy homeostasis and body temperature.Methods: The effect of environmental temperature (4e33 C) on body temperature, energy expenditure, physical activity, and food intake invarious mice (chow diet, high-fat diet, Brs3-/y, lipodystrophic) was measured using continuous monitoring.Results: Body temperature depended most on circadian phase and physical activity, but also on environmental temperature. The amounts ofenergy expenditure due to basal metabolic rate (calculated via a novel method), thermic effect of food, physical activity, and cold-inducedthermogenesis were determined as a function of environmental temperature. The measured resting defended body temperature matchedthat calculated from the energy expenditure using Fourier’s law of heat conduction. Mice defended a higher body temperature during physicalactivity. The cost of the warmer body temperature during the active phase is 4e16% of total daily energy expenditure. Parameters measured indiet-induced obese and Brs3-/y mice were similar to controls. The high post-mortem heat conductance demonstrates that most insulation in miceis via physiological mechanisms.Conclusions: At 22 C, cold-induced thermogenesis isw120% of basal metabolic rate. The higher body temperature during physical activity isdue to a higher set point, not simply increased heat generation during exercise. Most insulation in mice is via physiological mechanisms, with littlefrom fur or fat. Our analysis suggests that the definition of the upper limit of the thermoneutral zone should be re-considered. Measuring bodytemperature informs interpretation of energy expenditure data and improves the predictiveness and utility of the mouse to model human energyhomeostasis.

  • 7633.
    Abrew, Gunilla de
    Halmstad University, School of Social and Health Sciences (HOS).
    Mamma pappa barn. Om delad föräldraledighet.2006Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]
    Studien handlar om föräldrar som i större utsträckning än som är vanligt har delat föräldraledigheten mellan sig. Genomförandet har skett genom kvalitativa intervjuer med sex föräldrapar. Studien visar att valen kring delad föräldraledighet sker som ett gemensamt beslut och utan konflikter där den ene eller andre föräldern "inte vill dela med sig av sina dagar". Föräldrarna ser ett delat uttag som något som dels gynnar relationen med barnet men också som positivt för parrelationen. Man ser inte ersättningen i föräldrapenning som en lägre kompensation för uteblivet arbete, utan snarare som ersättning man får för att vara hemma med sina barn. Föräldrarna i studien tenderade inte att se ledigheten som ett bortfall av pengar utan som en vinst i tid. De hade heller inte upplevt att arbetsgivaren reagerat negativt på deras föräldraledighet. Likaledes upplevde de heller inte i någon större utsträckning annat än positiva kommentarer från omgivningen.
  • 7634.
    Abrezol, Caroline
    Växjö University, Faculty of Humanities and Social Sciences, School of Social Sciences.
    New regionalism: the cases of NAFTA and MERCOSUR: How can regional co-operation be explained?2007Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The end of the Cold War crucially changed the way in which the world is organised and brought an end to what is referred to as the “old” regionalism. A trend towards some form of “new” regionalism has thus been observed during the 1990s. The objective of this thesis is therefore, firstly, to outline the characteristics of the new regionalism in order to examine to what extent the phenomenon is reflected in the reality of regional organisations, and, secondly, to establish which model of co-operation the same organisations can be said to follow. Following this idea, a comparative case study is performed with the selected cases of NAFTA and MERCOSUR, on which a theoretical model for analysis is applied in order to establish whether theories of International Relations, in this case Liberalism and Realism, can explain the emergence and existence of both organisations.

    Results show that NAFTA is less inclined to show signs of the trend towards the new regionalism than MERCOSUR does, and that NAFTA to a larger extent follows a realist model of co-operation, while MERCOSUR follows a more liberal model of co-operation.

  • 7635.
    Abrha, Seble
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Economic History.
    Kvinnor och idrott i idrottsföreningen Thor.2005Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 7636.
    Abrigian, Mari
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
    Almqvist Gärtner, Daniel
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
    Möjligheter och utmaningar med internationella inköp: En studie av internationella inköp2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The construction industry in Sweden today are facing a major challenge in building society and following the pace of population growth. Rising material prices are today a fact, and at the same time there is a lack of capacity at the Swedish suppliers as they are bound up in supplier agreements for the coming years. The largest construction companies in Sweden have been working strategically with international suppliers for a long time to increase their margins and to secure their material needs.

    BTH Bygg AB is today a company that builds, renovates and maintains real estate in Stockholm. The company has expanded in recent years and is committed to strong growth by 2020. Work on international purchasing has previously been limited to BTH Bygg, but this type of purchase is today seen as a necessity to continued growth and to be competitive in that part of Sweden where most is built.

    The purpose of this study is to analyze BTH Bygg's existing purchasing process to further develop and propose improvements with international procurement as a starting point.

    The study has been conducted with the help of interviews to get a complete picture of the issues of international purchasing. BTH Bygg AB has a strong organization with a lot of experience related to the subject area, and focus has been on compiling these in order to come up with suggestions and ideas on how to handle international purchases. Recommendations are focused on areas related to supplier assessment, communication, logistics and product selection.

  • 7637.
    Abrigo, Paul Philip
    Stockholm University, Faculty of Humanities, Department of Media Studies.
    Kommunikationspolicyn: En studie av svenska offentliga organisationers kommunikationspolicys med utgångspunkt i samtida forskningsperspektiv2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I akademisk litteratur om public relations och strategisk kommunikation talas det om ett paradigmskifte. Istället för att se kommunikation som information som skickas från en aktiv sändare till en passiv mottagare, börjar man se kommunikation som något som skapas i en dialog mellan två aktiva aktörer. Man rör sig från en strategisk syn på publiken som en påverkbar målgrupp till en dialogisk syn på publiken som aktiva deltagare. Har detta paradigmskifte även ägt rum i praktiken? Hur ser man på kommunikation inom svenska offentliga organisationer idag? Finns det några likheter och skillnader i synsätt, och vad kan dessa tänkas bero på? Materialet utgörs av elva svenska offentliga organisationers kommunikationspolicys. Teorin utgörs av två svenska forskningsantologier om public relations respektive strategisk kommunikation, samt ett urval kritiskt problematiserande artiklar i ämnet. Efter en genomgång av den teoretiska litteraturen har de samtida forskningsperspektiven sammanfattats. Utifrån dessa har en idéanalysmall, en typologi, konstruerats med utgångspunkt i två idealtyper. Det förekom tydliga samband mellan de olika synsätten och hart när alla organisationer gick att placera i endera av de två idealtyperna. Samtliga forskningsperspektiv utom ett gick att hitta i materialet. Skillnaderna i synsätt gick att koppla till de olika organisationernas uppdrag och utformning. Organisationer med nya synsätt är överlag sådana som har tydliga behov av att effektivt kommunicera med omvärlden, medan de övriga organisationerna huvudsakligen har en informationsspridande funktion.

  • 7638. Abrikosov, I. A.
    et al.
    Kissavos, A. E.
    Liot, F.
    Alling, B.
    Simak, S. I.
    Peil, O.
    Ruban, Andrei V.
    KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Material Physics.
    Competition between magnetic structures in the Fe rich fcc FeNi alloys2007In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 76, no 1Article in journal (Refereed)
    Abstract [en]

    We report on the results of a systematic ab initio study of the magnetic structure of Fe rich fcc FeNi binary alloys for Ni concentrations up to 50 at. %. Calculations are carried out within density-functional theory using two complementary techniques, one based on the exact muffin-tin orbital theory within the coherent potential approximation and another one based on the projector augmented-wave method. We observe that the evolution of the magnetic structure of the alloy with increasing Ni concentration is determined by a competition between a large number of magnetic states, collinear as well as noncollinear, all close in energy. We emphasize a series of transitions between these magnetic structures, in particular we have investigated a competition between disordered local moment configurations, spin spiral states, the double layer antiferromagnetic state, and the ferromagnetic phase, as well as the ferrimagnetic phase with a single spin flipped with respect to all others. We show that the latter should be particularly important for the understanding of the magnetic structure of the Invar alloys.

  • 7639. Abrikosov, I. A.
    et al.
    Olovsson, W.
    Johansson, Börje
    KTH, Superseded Departments, Materials Science and Engineering.
    Valence-band hybridization and core level shifts in random Ag-Pd alloys2001In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 8717, no 17Article in journal (Refereed)
  • 7640. Abrikosov, I. A.
    et al.
    Olsson, Pär
    Department of Materials and Mechanics of Components, EDF RandD, les Renardières, Moret-sur-Loing, France.
    Ponomareva, A. V.
    Correlation between electronic structure, magnetism and physical properties of Fe-Cr alloys: Ab initio modeling2008In: MATERIALS ISSUES FOR GENERATION IV SYSTEMS: STATUS, OPEN QUESTIONS AND CHALLENGES, 2008, p. 153-168Conference paper (Refereed)
    Abstract [en]

    We review recent developments in the field of ab initio electronic structure theory and its application for studies of phase stability of alloy systems. Basic ideas behind state-of-the-art techniques for first-principles theoretical simulations of the phase stabilities and properties of intermetallic compounds and alloys based on the density functional theory are outlined. We concentrate on methods that allow for an efficient treatment of disorder effects, and illustrate their predictive power for the case of Fe-Cr system. We show that in the ferromagnetic alloys there are peculiarities of the mixing enthalpy in the low-Cr region in the bee phase. Thus the stability of the Cr containing steels stems from the negative mixing enthalpy at low concentrations of chromium. We explain the effect by the strong concentration dependence of the interatomic interactions in Fe-Cr system.

  • 7641. Abrikosov, I. A.
    et al.
    Ponomareva, A. V.
    Barannikova, S. A.
    Hellman, O.
    Vekilova, O.Yu.
    Simak, S. I.
    Ruban, Andrei V.
    KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Material Physics.
    Multiscale approach to theoretical simulations of materials for nuclear energy applications: Fe-Cr and Zr-based alloys2013In: Advances in materials for nuclear energy: symposium held November 25-30, Boston, Massachusetts, U.S.A., Materials Research Society, 2013, p. 3-14Conference paper (Refereed)
    Abstract [en]

    We review basic ideas behind state-of-the-art techniques for first-principles theoretical simulations of the phase stabilities and properties of alloys. We concentrate on methods that allow for an efficient treatment of compositional and thermal disorder effects. In particular, we present novel approach to evaluate free energy for strongly anharmonic systems. Theoretical tools are then employed in studies of two materials systems relevant for nuclear energy applications: Fe-Cr and Zr-based alloys. In particular, we investigate the effect of hydrostatic pressure and multicomponent alloying on the mixing enthalpy of Fe-Cr alloys, and show that in the ferromagnetic state both of them reduce the alloy stability at low Cr concentration. For Zr-Nb alloys, we demonstrate how microscopic parameters calculated from first-principles can be used in higher-level models.

  • 7642.
    ABRIKOSOV, IA
    et al.
    Uppsala University.
    ERIKSSON, O
    Uppsala University.
    SODERLIND, P
    Uppsala University.
    SKRIVER, HL
    Uppsala University.
    JOHANSSON, B
    Uppsala University.
    THEORETICAL ASPECTS OF THE FECNI1-C INVAR ALLOY1995In: PHYSICAL REVIEW B-CONDENSED MATTER, ISSN 0163-1829, Vol. 51, no 2, p. 1058-1063Article in journal (Other scientific)
  • 7643.
    Abrikosov, IA
    et al.
    Uppsala University.
    James, P
    Uppsala University.
    Eriksson, O
    Uppsala University.
    Soderlind, P
    Uppsala University.
    Ruban, AV
    Uppsala University.
    Skriver, HL
    Uppsala University.
    Johansson, B
    Uppsala University.
    Magnetically induced crystal structure and phase stability in Fe1-cCoc1996In: PHYSICAL REVIEW B-CONDENSED MATTER, ISSN 0163-1829, Vol. 54, no 5, p. 3380-3384Article in journal (Other scientific)
    Abstract [en]

    We present an ab initio determination of the crystallographic phase stability of Fe-Co alloys as a function of concentration, using the coherent potential approximation. A bcc --> hcp phase transition is found at a concentration of 85 at.% of Co, in good

  • 7644.
    Abrikosov, IA
    et al.
    Uppsala University.
    Johansson, B
    Uppsala University.
    Applicability of the coherent-potential approximation in the theory of random alloys1998In: PHYSICAL REVIEW B-CONDENSED MATTER, ISSN 0163-1829, Vol. 57, no 22, p. 14164-14173Article in journal (Other scientific)
    Abstract [en]

    The applicability of the coherent-potential approximation (CPA) for the description of electronic properties of completely random alloys is investigated. This is done by calculating the density of states and the total energy for different systems and by c

  • 7645.
    Abrikosov, IA
    et al.
    Uppsala University.
    Johansson, B
    Uppsala University.
    Application of O(N) LSGF method for calculation of systems with non-collinear magnetic configurations1998In: PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, ISSN 0141-8637, Vol. 78, no 5-6, p. 481-485Article in journal (Other scientific)
    Abstract [en]

    We discuss an extension of the locally self-consistent Green's function method (LSGF) to the case of large magnetic systems with arbitrary orientations of local spin moments. The LSGF method is an order-N, O(N), method for calculation of the electronic st

  • 7646. Abrikosov, I.A.
    et al.
    Marten, T.
    Olovsson, W.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics.
    Local environment effects in random metallic alloys2005In: The Science of Complex Alloy Phases: TMS (The Minerals, Metals and Materials Society), 2005, p. 87-108Chapter in book (Other academic)
  • 7647.
    Abrikosov, IA
    et al.
    Uppsala University.
    Niklasson, AMN
    Uppsala University.
    Simak, SI
    Uppsala University.
    Johansson, B
    Uppsala University.
    Ruban, AV
    Uppsala University.
    Skriver, HL
    Uppsala University.
    Order-N Green's function technique for local environment effects in alloys1996In: PHYSICAL REVIEW LETTERS, Vol. 76, no 22, p. 4203-4206Article in journal (Other scientific)
    Abstract [en]

    We have developed a new approach to the calculations of ground state properties of large crystalline systems with arbitrary atomic configurations based on a Green's function technique in conjunction with a self-consistent effective medium for the underlyi

  • 7648. Abrikosov, I.A.
    et al.
    Olovsson, W.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics.
    Johansson, B.
    Valence-band hybridization and core level shifts in random Ag-Pd alloys2001In: Phys. Rev. Lett., Vol. 87, p. 176403-Article in journal (Refereed)
  • 7649.
    Abrikosov, I.A
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics.
    Olovsson, W
    Johansson, B
    Valence-band hybridization and core level shifts in random Ag-Pd alloys2001In: Physical Review Letters, ISSN 0031-9007, Vol. 87, no 17, p. 176403.1-176403.4Article in journal (Refereed)
  • 7650.
    Abrikosov, IA
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics.
    Olovsson, W
    Johansson, B
    Valence-band hybridization and core level shifts in random Ag-Pd alloys - art. no. 1764032001In: PHYSICAL REVIEW LETTERS, ISSN 0031-9007, Vol. 8717, no 17, p. 6403-+Article in journal (Refereed)
    Abstract [en]

    First-principles calculations of the core-level binding energy shifts (CLS) for 3d inner-core electrons of Ag and Pd in fcc Ag-Pd alloy were carried out within the complete screening picture, which includes both initial and final state effects. These allo

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