A group of funerary steles, which date back to the Hellenistic and Roman periods, from Muğla museum

Bu Yüksek Lisans Tezinde Mugla Müzesi'nde korunan bir grup mezar steli incelenmistir. Çalısmaya ilk önce Stratonikeia'nın özet tarihçesiyle baslanmıstır. Karia Bölgesi'nin en önemli Metropolislerinden biri olan Stratonikeia antik çagda dini, siyasi, cografi ve stratejik bakımdan önemini korumustur. Bu güne kadar kent tarihini ve kültürünü konu alan pek çok çalısma yapılmıs ve yapılmaya devam etmektedir. Tezin konusunu olusturan ikinci bölümde mezar stellerinin form özelliklerinden yararlanarak dört mezar steli tipi tespit edilmis ve her bir stel tipi ayrıntılı olarak tanıtılmıstır. Stel tipleri böylelikle form özelliklerinden yararlanılarak kendi içinde gruplara ayrılarak incelenmistir. Çalısmanın üçüncü bölümünde mezar stelleri üzerinde tasvir edilen figürler tiplerine göre ayrılıp, gelisim süreci içinde degerlendirilmistir. Her biri benzer örnekleriyle karsılastırılarak stilistik olarak tarihlendirme yoluna gidilmistir. Çalısmanın dördüncü bölümü olan Katalog kısmında yapılan sıralamada ise steller biçimlerine göre degil, figür tiplerine göre degerlendirilmis, dolayısıyla da kronolojik sıra takip edilmemistir. Tüm bu çalısmalar sonucunda, bu tezde ayrıntılı bir biçimde incelenen mezar stellerinin Hellenistik ve Roma mparatorluk Dönemi'ne ait sanatsal özellikler tasıdıkları belirlenmis, her biri kendi dönem modası içinde benzerleri ile ayrıntılı olarak karsılastırılarak incelenmeye çalışılmıştır. This thesis includes some funerary steles, exhibited at Mugla Museum, and consists of four main chapters. The first chapter gives history of Stratonikeia, and history of research at the ancient city briefly. The Stratonicean history has revealed that the city, one of the most important metropoleis in the territory of Caria, was a religious, political, geographical, and strategic center throughout antique ages. Numerous research has been done, and is continued on Stratonikeia. In the second chapter four types of funerary steles have been determined by means of forms of the steles. The each type has been analysed in detail. Figures, pictured on the funerary steles, are divided into groups on the basis of their types, and by comparing with likeness each is examined progressively in the third chapter. Catalogue of the thesis, to wit, the fourth chapter, is arranged not in chronological order, but is parallel to the types of the figures, examined in the previous chapter. All the studies have showed that the funerary steles in Mugla Museum date back to the Hellenistic and Roman Periods

Determinants of workers' remittances : evidence from Turkey

Cataloged from PDF version of article.In this thesis, macroeconomic determinants of workers’ remittances are analyzed for the case of Turkey, using annual data over the period 1964-2001. Using two different models, in contrast to some previous analyses, we find that macroeconomic variables and variables related with economic and political risk in the country of origin significantly impact on remittance inflows. According to empirical results, remittance flows are highly responsive to the differential between the official and black market exchange rates. In both models, we observe that the difference between the black market and official rate of exchange has a significant negative impact on the inflow of remittances. Domestic rate of inflation also has a significant negative impact on remittances, indicating a negative correlation between economic instability in home country and remittance inflows. Results also reveal that the interest rate differential between the country of origin and host country has a significant positive impact on remittances. Periods of military administration in Turkey also have a significant negative impact on remittance inflows, indicating a negative correlation between political instability in home country and remittance inflows. Hence, contrary to some previous studies, our results, based on the evidence from Turkey, suggest that governments of labor-exporting countries can influence remittance inflows through inflation, exchange rate and interest rate policies.Aydaş, Osman TuncayM.S

Super-heavy fermion material as metallic refrigerant for adiabatic demagnetization cooling

Low-temperature refrigeration is of crucial importance in fundamental research of condensed matter physics, as the investigations of fascinating quantum phenomena, such as superconductivity, superfluidity and quantum criticality, often require refrigeration down to very low temperatures. Currently, cryogenic refrigerators with $^3$He gas are widely used for cooling below 1 Kelvin. However, usage of the gas is being increasingly difficult due to the current world-wide shortage. Therefore, it is important to consider alternative methods of refrigeration. Here, we show that a new type of refrigerant, super-heavy electron metal, YbCo$_2$Zn$_{20}$, can be used for adiabatic demagnetization refrigeration, which does not require 3He gas. A number of advantages includes much better metallic thermal conductivity compared to the conventional insulating refrigerants. We also demonstrate that the cooling performance is optimized in Yb$_{1-x}$Sc$_x$Co$_2$Zn$_{20}$ by partial Sc substitution with $x\sim$0.19. The substitution induces chemical pressure which drives the materials close to a zero-field quantum critical point. This leads to an additional enhancement of the magnetocaloric effect in low fields and low temperatures enabling final temperatures well below 100 mK. Such performance has up to now been restricted to insulators. Since nearly a century the same principle of using local magnetic moments has been applied for adiabatic demagnetization cooling. This study opens new possibilities of using itinerant magnetic moments for the cryogen-free refrigeration

Pre-election polls in Turkey

The number of pre-election polls has considerably increased in the last decades. Such an increase is accompanied not only by methodological advances and obstacles but also by skepticism and criticism about the precision of the estimates and biases in favor of particular political parties or candidates. While scholarly interest in poll accuracy and quality has also grown considerably in many countries, scholarly work on pre-election polls in Turkey are scarce. This thesis aims to fill this gap by examining a total of 374 pre-election polls conducted after the official announcement of the general, presidential, and mayoral elections in Turkey that took place between 2011 and 2019. Using a revised CNN Transparency Index as a survey quality assessment tool, I find that reporting practices, as well as the designs of the pre-election polls, do not follow scientific standards in the examined cases, and many polls have larger errors than their calculated margins of error (assuming random sampling). Prior work on the poll accuracy suggests that poll aggregation produces more precise estimates by increasing the sample size and reducing errors in different directions. Although pre-election polls do not follow scientific standards, pooling the polls together by weighting the estimates based on (i) sample size, (ii) revised CNN score, and (iii) pollster experience provides a useful forecasting tool for election outcomes in line with theoretical expectation