Regulation and competition in the Turkish telecommunications industry: an update

This chapter provides an overview of the state of liberalization, competition and regulation of major segments of the telecommunications industry in Turkey. It shows that the competitive stance of the regulatory authority and the development of actual competition has been uneven across segments. Specifically, the degree of competition has been higher in the mobile segment relative to fixed telephony or broadband. The chapter also discusses the new Electronic Communications Law and argues that although not perfect, it provides a coherent basis on which the regulatory authority can pursue competitive objectives in a more even manner. However, the actual development of competition will depend a lot on how the law and the ensuing secondary legislation are actually implemented

The effect of electromagnetic properties of neutrinos on the photon-neutrino decoupling temperature

We examine the impact of electromagnetic properties of neutrinos on the annihilation of relic neutrinos with ultra high energy cosmic neutrinos for the $\nu \bar{\nu}\to \gamma\gamma$ process. For this process, photon-neutrino decoupling temperature is calculated via effective lagrangian model beyond the standard model. We find that photon-neutrino decoupling temperature can be importantly reduced below the QCD phase transition with the model independent analysis defining electromagnetic properties of neutrinos.Comment: 12 pages, 3 figures, published versio

Batı Karadeniz Bölgesinde Yetiştirilen Bazı Fındık Çeşitlerinde Karbonhidrat Düzeylerindeki Değişimin Enzimatik Yöntemle Belirlenmesi

Bu çal ış mada Düzce bölgesinde bulunan Tombul, Palaz, Kal ı nkara, Çak ı ldak, Mincane, Foşa ve Sivri çeşitlerine ait ocaklarda belirlenen ana dallardan al ı nan kabuk örneklerindeki fruktoz, glukoz, sakaroz ve toplam karbonhidrat miktarlar ı , enzimatik yöntem kullan ı larak saptanm ışt ı r. Kabuk örnekleri iki y ı l üst üste olacak şekilde, her ay düzenli olarak al ı nmışt ı r. Kabuk dokular ı nda belirlenen fruktoz, glukoz, sakaroz ve toplam karbonhidrat miktarlar ı n ı n çeşitllerin hemen tümünde yaz aylar ı nda daha düşük, kış aylar ı nda ise daha yüksek düzeylerde oldu ğ u belirlenmiştir. Genel say ı labilecek bir durum olarak, karbonhidrat miktarlar ı ilkbahar aylar ı nda bir miktar azalmakta, yaz aylar ı boyunca düşük miktarlarda seyreden ve daha stabil say ı labilecek bir değ işimin ard ı ndan, sonbahar ı n ortalar ı nda artmaya başlamakta ve bu miktar artışı kış aylar ı na kadar devam etmektedir

An Alternative Treatment for Yukawa-Type Potentials

We propose a new approximation scheme to obtain analytic expressions for the bound state energies and eigenfunctions of Yukawa like potentials. The predicted energies are in excellent agreement with the accurate numerical values reported in the literature

Search for electromagnetic properties of the neutrinos at the LHC

Exclusive production of neutrinos via photon-photon fusion provides an excellent opportunity to probe electromagnetic properties of the neutrinos at the LHC. We explore the potential of processes pp-> p gamma gamma p -> p nu anti-nu p and pp -> p gamma gamma p -> p nu anti-nu Z p to probe neutrino-photon and neutrino-two photon couplings. We show that these reactions provide more than seven orders of magnitude improvement in neutrino-two photon couplings compared to LEP limits.Comment: 11 pages, 4 tables, New backgrounds have been adde

Search for CP Violation in the Decay Z -> b (b bar) g

About three million hadronic decays of the Z collected by ALEPH in the years 1991-1994 are used to search for anomalous CP violation beyond the Standard Model in the decay Z -> b \bar{b} g. The study is performed by analyzing angular correlations between the two quarks and the gluon in three-jet events and by measuring the differential two-jet rate. No signal of CP violation is found. For the combinations of anomalous CP violating couplings, ${\hat{h}}_b = {\hat{h}}_{Ab}g_{Vb}-{\hat{h}}_{Vb}g_{Ab}$ and $h^{\ast}_b = \sqrt{\hat{h}_{Vb}^{2}+\hat{h}_{Ab}^{2}}$, limits of \hat{h}_b < 0.59$and$h^{\ast}_{b} < 3.02$ are given at 95\% CL.Comment: 8 pages, 1 postscript figure, uses here.sty, epsfig.st