| 1. |
- Özcan, Gülay, 1973-
(författare)
-
Essays on Labor Market Disparities and Discrimination : Immigration, Education and Gender
- 2011
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The thesis consists of four papers, summarized as follows. Do Host Country Educations Even Out the Playing Field? Immigrant-Native Labor Market Gaps in Sweden This study follows a cohort of students from Swedish compulsory school graduation in 1988 until 2002 to document differences in education, including grades and field of education, and labor market outcomes between immigrants and natives. Results indicate initial differences in youth labor market status and long term differences in employment rates, most notably for those with Non-European backgrounds. Acculturation Identity and Higher Education: Is There a Trade-off Between Ethnic Identity and Education? This paper examines the role of identification to home and host cultures on the pursuit of higher educations for individuals with immigrant backgrounds. Identity is defined according to a two-dimensional acculturation framework based on strength of identification to both ethnic background cultures and the majority culture. The results put into question the premise of oppositional identities. Is It How You Look or Speak That Matters? -An Experimental Study Exploring the Mechanisms of Ethnic Discrimination Using a laboratory experiment, we explore the following questions: Are beliefs about performance affected by if a candidate is perceived to have looks that are non-stereotypical for the dominant population? Do these beliefs change if the candidate has a native-like vs. accented speech? We find that candidates not perceived as stereotypically Swedish are considered to be worse performers. When candidates are presented by both looks and speech, we find negative beliefs for candidates that speak Swedish with a foreign-accent. Sector Differences in the Glass Ceiling in Sweden -Is Occupational Segregation the Explanation? This paper explores sector differences in how the gender wage gap varies across the wage distribution and examines the role of occupational segregation in explaining this variation for Sweden. Results indicate that the phenomenon known as the glass ceiling is stronger in the public sector than in the private sector. This difference is found to be due to occupational segregation.
|
|
| 2. |
- Coradeschi, Silvia, 1968-, et al.
(författare)
-
Social robotic telepresence
- 2011
-
Ingår i: the 6th ACM/IEEE International Conference on Human-Robot Interaction (HRI 2011).HRI. - New York, NY, USA : ACM Digital Library. - 9781450305617 ; , s. 5-6
-
Konferensbidrag (refereegranskat)
|
|
| 3. |
- Bommenel, Elin, et al.
(författare)
-
När historiska händelser får samtidens uppmärksamhet - historikerns roll och relationer till brukare och journalister
- 2022
-
Konferensbidrag (refereegranskat)abstract
- Då och då uppmärksammar massmedia så kallade historiska skandaler såsom sterilisering, vanvård inom den sociala barnavården, höga dödstal på sinnessjukhus eller behandling av minoritetsbefolkningar. Sådan massmedial uppmärksamhet bidrar ibland till diskussioner i nutida samhällsdebatt om välfärdsstatens roll, om svek till individer i utsatta positioner och om vägar till upprättelse.I sådana sammanhang kan historiker bidra med kunskap och perspektiv, och i den rollen har historiker ofta kontakt med journalister och brukare vilket kan vara berikande men också utmanande. Utmaningarna kan handla om att nå ut och nå fram med reflektioner om komplexa skeenden, om förändrade samhälleliga värderingar, strukturer och synsätt som kan bidra till förklaringar av det som med dagens blick tycks obegripligt. Frågan är hur relevant detta upplevs i en kontext där individer söker svar på varför livet blev som det blev och journalister (ibland) söker säljande scoop.Utifrån egna erfarenheter som historiker som forskar om frågor som får utrymme i dagens samhällsdebatt vill vi i detta rundabordssamtal diskutera historikerns roll och relationer till brukare och journalister. Våra erfarenheter rymmer både engagerade brukare som vill använda forskning som ett argument i en upprättelseprocess till brukare som inte vill medverka i forskning överhuvudtaget. Vi har upplevt journalister som medvetet bortser från den forskning vi redovisar till ambitiösa journalister som stämmer av resultat och formuleringar.Vi har mycket att vinna på goda relationer mellan historiker, brukare och journalister – men hur skapar vi dessa? Hur når vi ut med vår forskning? Hur kan historiker bidra i samtida diskussioner? Hur behåller vi vår professionella integritet i samarbete med brukare? Hur hanterar vi massmedia när vår kunskap åsidosätts? Dessa frågor vill vi diskutera utifrån erfarenheter bland nordiska historiker.
|
|
| 4. |
- Feng, Zhenhua, et al.
(författare)
-
Performance-Enhanced Direct Detection Optical OFDM Transmission With CAZAC Equalization
- 2015
-
Ingår i: IEEE Photonics Technology Letters. - 1041-1135 .- 1941-0174. ; 27:14, s. 1507-1510
-
Tidskriftsartikel (refereegranskat)abstract
- Direct detection optical orthogonal frequency division multiplexing (DDO-OFDM) transmission with constant amplitude zero autocorrelation (CAZAC) sequence equalization is proposed and experimentally demonstrated. Simulation results show that more than 2-dB peak-to-average power ratio (PAPR) reduction can be realized using CAZAC equalization, and 50-km standard single mode fiber (SSMF) transmission of 4.11-Gb/s QPSK-OFDM can be achieved with bit-error rate (BER) under forward error correction limit. Transmission performance of QPSK-based DDO-OFDM system is analyzed in both OB2B configuration and fiber link with and without CAZAC equalization. More than 2.5-dB optical receiver sensitivity improvements can be obtained thanks to the PAPR reduction enjoyed by CAZAC equalization. Signal-to-noise ratio for every subcarrier derived from error vector magnitude is estimated and its flatness is confirmed to be much improved with CAZAC equalization. The performance improvements brought by CAZAC equalization can be extended to other modulation formats, and 8.22-Gb/s 16-quadratic-amplitude modulation-OFDM signals transmission using CAZAC equalization is demonstrated with over 1.5 dB enhancement in receiver sensitivity.
|
|
| 5. |
|
|
| 6. |
- Aamodt, K., et al.
(författare)
-
Charged-particle multiplicity measurement in proton-proton collisions at root s=0.9 and 2.36 TeV with ALICE at LHC
- 2010
-
Ingår i: European Physical Journal C. Particles and Fields. - : Springer Science and Business Media LLC. - 1434-6044. ; 68:1-2, s. 89-108
-
Tidskriftsartikel (refereegranskat)abstract
- Charged-particle production was studied in proton-proton collisions collected at the LHC with the ALICE detector at centre-of-mass energies 0.9 TeV and 2.36 TeV in the pseudorapidity range vertical bar eta vertical bar < 1.4. In the central region (vertical bar eta vertical bar < 0.5), at 0.9 TeV, we measure charged-particle pseudo-rapidity density dN(ch)/d eta = 3.02 +/- 0.01(stat.)(-0.05)(+0.08)(syst.) for inelastic interactions, and dN(ch)/d eta = 3.58 +/- 0.01 (stat.)(-0.12)(+0.12)(syst.) for non-single-diffractive interactions. At 2.36 TeV, we find dN(ch)/d eta = 3.77 +/- 0.01(stat.)(-0.12)(+0.25)(syst.) for inelastic, and dN(ch)/d eta = 4.43 +/- 0.01(stat.)(-0.12)(+0.17)(syst.) for non-single-diffractive collisions. The relative increase in charged-particle multiplicity from the lower to higher energy is 24.7% +/- 0.5%(stat.)(-2.8)(+5.7)%(syst.) for inelastic and 23.7% +/- 0.5%(stat.)(-1.1)(+4.6)%(syst.) for non-single-diffractive interactions. This increase is consistent with that reported by the CMS collaboration for non-single-diffractive events and larger than that found by a number of commonly used models. The multiplicity distribution was measured in different pseudorapidity intervals and studied in terms of KNO variables at both energies. The results are compared to proton-antiproton data and to model predictions.
|
|
| 7. |
- Abe, Kenshi, et al.
(författare)
-
A Slingshot Approach to Learning in Monotone Games
-
Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- In this paper, we address the problem of computing equilibria in monotone games.The traditional Follow the Regularized Leader algorithms fail to converge to anequilibrium even in two-player zero-sum games. Although optimistic versions ofthese algorithms have been proposed with last-iterate convergence guarantees, theyrequire noiseless gradient feedback. To overcome this limitation, we present a novelframework that achieves last-iterate convergence even in the presence of noise. Ourkey idea involves perturbing or regularizing the payoffs or utilities of the games.This perturbation serves to pull the current strategy to an anchored strategy, whichwe refer to as a slingshot strategy. First, we establish the convergence rates of ourframework to a stationary point near an equilibrium, regardless of the presenceor absence of noise. Next, we introduce an approach to periodically update theslingshot strategy with the current strategy. We interpret this approach as a proximalpoint method and demonstrate its last-iterate convergence. Our framework iscomprehensive, incorporating existing payoff-regularized algorithms and enablingthe development of new algorithms with last-iterate convergence properties. Finally,we show that our algorithms, based on this framework, empirically exhibit fasterconvergence.
|
|
| 8. |
|
|
| 9. |
- Adam, J., et al.
(författare)
-
ALICE Collaboration
- 2016
-
Ingår i: Nuclear Physics A. - 0375-9474. ; 956, s. 913-921
-
Tidskriftsartikel (refereegranskat)
|
|
| 10. |
- Adam, J., et al.
(författare)
-
Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions
- 2017
-
Ingår i: Nature Physics. - : Springer Science and Business Media LLC. - 1745-2473 .- 1745-2481. ; 13:6, s. 535-539
-
Tidskriftsartikel (refereegranskat)abstract
- At sufficiently high temperature and energy density, nuclear matter undergoes a transition to a phase in which quarks and gluons are not confined: the quark-gluon plasma (QGP). Such an exotic state of strongly interacting quantum chromodynamics matter is produced in the laboratory in heavy nuclei high-energy collisions, where an enhanced production of strange hadrons is observed. Strangeness enhancement, originally proposed as a signature of QGP formation in nuclear collisions, is more pronounced for multi-strange baryons. Several effects typical of heavy-ion phenomenology have been observed in high-multiplicity proton-proton (pp) collisions, but the enhanced production of multi-strange particles has not been reported so far. Here we present the first observation of strangeness enhancement in high-multiplicity proton-proton collisions. We find that the integrated yields of strange and multi-strange particles, relative to pions, increases significantly with the event charged-particle multiplicity. The measurements are in remarkable agreement with the p-Pb collision results, indicating that the phenomenon is related to the final system created in the collision. In high-multiplicity events strangeness production reaches values similar to those observed in Pb-Pb collisions, where a QGP is formed. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.
|
|
