Measurement of quarkonium production at forward rapidity in pp collisions at √s = 7 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Abstract The inclusive production cross sections at for- ward rapidity of J/ψ , ψ (2S), Υ (1S) and Υ (2S) are measured in pp collisions at √s = 7 TeV with the ALICE detector at the LHC. The analysis is based on a data sample corre- sponding to an integrated luminosity of 1.35 pb−1. Quarko- nia are reconstructed in the dimuon-decay channel and the signal yields are evaluated by fitting the μ+μ− invariant mass distributions. The differential production cross sections are measured as a function of the transverse momentum pT and rapidity y, over the ranges 0 < pT < 20 GeV/c for J/ψ, 0 < pT < 12 Ge ...Daha fazlası

Performance of the ALICE experiment at the CERN LHC

KARASU UYSAL, Ayben | ALICE Collaboration

ALICE is the heavy-ion experiment at the CERN Large Hadron Collider. The experiment continuously took data during the first physics campaign of the machine from fall 2009 until early 2013, using proton and lead-ion beams. In this paper we describe the running environment and the data handling procedures, and discuss the performance of the ALICE detectors and analysis methods for various physics observables.

Beauty production in pp collisions at √s = 2.76 TeV measured via semi-electronic decays

KARASU UYSAL, Ayben | ALICE Collaboration

The ALICE Collaboration at the LHC reports measurement of the inclusive production cross section of electrons from semi-leptonic decays of beauty hadrons with rapidity |y| < 0.8 and transverse momentum 1 < pT < 10 GeV/c, in pp collisions at √ s = 2.76 TeV. Electrons not originating from semi-electronic decay of beauty hadrons are suppressed using the impact parameter of the corresponding tracks. The production cross section of beauty decay electrons is compared to the result obtained with an alternative method which uses the distribution of the azimuthal angle between heavy-flavour decay elect ...Daha fazlası

Matematik Öğretmen Adaylarının Lineer Kongrüanslara İlişkin Soyutlamayı İndirgeme Eğilimleri

ŞENAY, Şaban Can | ÖZDEMİR, Ahmet Şükrü

Öz: Matematik öğretmen adaylarının lisans eğitimi süresince alan bilgilerinin şekillenmesinde önemli rolü olan derslerden birisi de Sayılar Teorisi dersidir. Bu çalışmada, matematik öğretmen adaylarının, Sayılar Teorisi dersi kapsamında verilen lineer kongrüanslar ile ilgili algılayışları, Hazzan’ın (1999) geliştirdiği soyutlamanın indirgenmesi teorisi çerçevesinde incelenmiştir. Soyutlamanın indirgenmesi düşüncesi öğrencilerin, kavramların derste verildiği soyutlama seviyesinden daha düşük seviyedeki bir soyutlamayla çalışma eğilimlerine dayanmaktadır. Araştırmamızda, ilköğretim ve ortaöğreti ...Daha fazlası

The Relationship Between Symbolic Money Meanings and Materialism

DOĞAN, Volkan | TORLAK, Ömer

he aim of this study was to explore the relationship between the perceived symbolic meanings of money and materialism. The population of the study consisted of individuals over the age of 19 living in Eskişehir (Turkey) city center. The study used the convenience sampling method, a nonprobabilistic method, and a total of 590 sampling data were obtained. According to the results, there were significant relationships between the sub-scales of the symbolic money meanings scales as perceived by the participants and their levels of materialism. A significant positive relationship was found between ...Daha fazlası

Social Work Practices in the Context of Suicide Prevention and Mental Health Policies: Qualitative Study about Social Worker Sample

AKARÇAY, Demet | BAŞER, Doğa | KIRLIOĞLU, Mehmet | ÖZATA, Musa

The Relationship Between Mobbing and Employee Mental Health

ASLAN, Şebnem | AKARÇAY, Demet

In the recent years, the negative effects of mobbing on employee health have been frequently expressed. For these reason, the objective of the study was stated to investigate whether mobbing has effects on employee health. The study was conducted in Konya, a province of Turkey among 181 healthcare employees. In the study Grunau’s (2007) Work Harassment scale, Arrindell, Heesink ve Feij’s (1999) The Satisfaction with Life Scale (SWLS) and Ryff's Psychological Well-Being, and Kevin’s (2000) Well-Being at Work scales were used. In the result of the study, it was determined that mobbing affected l ...Daha fazlası

Neutral pion production at midrapidity in pp and Pb–Pb collisions at √sNN = 2.76 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Invariant yields of neutral pions at midrapidity in the transverse momentum range 0.6 < pT < 12 GeV/c measured in Pb–Pb collisions at √sNN = 2.76 TeV are presented for six centrality classes. The pp reference spectrum was measured in the range 0.4 < pT < 10 GeV/c at the same centerof-mass energy. The nuclear modification factor, RAA, shows a suppression of neutral pions in central Pb–Pb collisions by a factor of up to about 8−10 for 5 pT 7 GeV/c. The presented measurements are compared with results at lower center-of-mass energies and with theoretical calculations

The Mediator Role of Ethical Values and Behavior which is Affected by Organizational Citizenship Behavior on Employee Empowerment

ASLAN, Şebnem | AKARÇAY, Demet | TOYGAR, Şükrü Anıl | ALA, Şükran

The purpose of this study is to determine the effect of employee empowerment on organizational citizenship behavior and the role of ethical values and behavior in terms of this impact. This research was applied to a sample of group of 195 persons, working in two leader companies in the textile industry, located in the province of Isparta in Turkey. In the inquiry, it has been concluded that the employee empowerment affects the organizational citizenship behavior by the full mediation of ethical value and behavior.

Measurement of prompt D-meson production in p–Pb collisions at √ sNN = 5 .02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The pT-differential production cross sections of the prompt charmed mesons D0, Dþ, D þ, and Dþs and center-of-mass energy sNN 1⁄4 5.02 TeV with the ALICE detector at the LHC. The nuclear modification factor RpPb, quantifying the D-meson yield in p-Pb collisions relative to the yield in pp collisions scaled by the number of binary nucleon-nucleon collisions, is compatible within the 15%–20% uncertainties with unity in the transverse momentum interval 1 < pT < 24 GeV=c. No significant difference among the RpPb of the four D-meson species is observed. The results are described within uncertaintie ...Daha fazlası

Transverse momentum dependence of inclusive primary charged-particle production in p–Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The transverse momentum ( pT ) distribution of primary charged particles is measured at midrapidity in minimum-bias p–Pb collisions at √sNN = 5.02 TeV with the ALICE detector at the LHC in the range 0.15 < pT < 50 GeV/c. The spectra are compared to the expectation based on binary collision scaling of particle production in pp colli- sions, leading to a nuclear modification factor consistent with unity for pT larger than 2 GeV/c, with a weak indication of a Cronin-like enhancement for pT around 4 GeV/c. The mea- surement is compared to theoretical calculations and to data in Pb–Pb collisions at ...Daha fazlası

A Short Survey of Linked Data Ranking

YUMUŞAK, Semih | DOĞDU, Erdoğan | KODAZ, Halife

Linked data systems are still far from maturity. Hence, the basic principles are still open for discussion. In our study on building a novel linked data search engine, we have surveyed fundamental methods of internet search technologies in the context of linked data crawling, indexing, ranking, and monitoring. The scope of this ranking survey covers linked data related statistical ranking, database ranking, document level ranking, and Web ranking techniques. In order to classify the linked data ranking methods, we identified a number of categories. These categories are ontology ranking, RDF ra ...Daha fazlası