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Publication Open Access A Lower Paleolithic assemblage from western Anatolia: the lithics from Bozyer(Elsevier, 2019) Dinçer, Berkay; Çilingiroğlu, Çiler; Department of Archeology and History of Art; Roosevelt, Christopher Havemeyer; Roosevelt, Christina Marie Luke; Faculty Member; Department of Archeology and History of Art; College of Social Sciences and Humanities; N/A; 235112In 2005 the Central Lydia Archaeological Survey (CLAS) identified an open-air Lower Paleolithic site called Bozyer near Lake Marmara in the province of Manisa, Turkey. Intensive survey of Bozyer in 2008 resulted in collection of over 300 stone tools. Subsequent systematic analysis attributed 189 of these lithics to a Lower Paleolithic industry. The assemblage is characterized by flakes and retouched flake tools, many of which were produced with the bipolar flaking technique; preferential use of locally available quartz and quartzite over chert; a low proportion of cores, most of which were reused as choppers and chopping tools; and the absence of bifaces and other large cutting tools. With few exceptions, similar assemblages are rare in Anatolia, and comparable industries from Eurasia and the Near East date to the Early Pleistocene period. The lithic industry from Bozyer thus joins other nearby sites in evidencing some of the earliest hominin activities outside Africa, shedding new light on growing understandings of Lower Paleolithic technology, mobility, and activities in Anatolia.Publication Open Access Bridging the gap between pre-census and census-era historical data: devising a geo-sampling model to analyse agricultural production in the long run for Southeast Europe, 1840–1897(Edinburgh University Press, 2020) Gerrits, Piet; Department of History; Kabadayı, Mustafa Erdem; Boykov, Grigor; Faculty Member; Department of History; College of Social Sciences and Humanities; 33267; N/AThis research introduces a novel geo-spatial sampling model to overcome a major difficulty in historical economic geography of Bulgarian lands during a crucial period: immediately before and after the de facto independence of the territory from the Ottoman Empire in the second half of the nineteenth century. At its core it seeks to investigate the research question how the Bulgarian independence affected agricultural production in two regions (centered around the cities of Plovdiv and Ruse) of today's Bulgaria, for which there are conflicting yet empirically unsubstantiated claims concerning the economic impact of the political independence. Using our be-spoke geo-sampling strategy we believe, we have sampled regionally representative commensurable agricultural data from the 1840s Ottoman archival documentation, in accord with agricultural censuses conducted by the nascent nation state of Bulgaria in the 1890s.Publication Open Access Implications of between-school tracking for Turkish students(Mehmet Tekerek, 2019) Department of Psychology; Niehues, Wenke Ulrike; Sakarya, Yasemin Kisbu; Selçuk, Bilge; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; N/A; N/A; 52913Previous multilevel analyses for Turkey show that performance differences of students vary more between schools than within schools. These school-disparities might be associated with Turkey's tracking system and related differences in student body and learning environments of school tracks. Since it is not known how Turkey's low-performing vocational, low-performing academic, and high-performing academic school tracks differ regarding students' family background, motivational and behavioral engagement of students, and schools' learning environments, we analyzed the PISA 2012 data to examine these differences. Results indicate that Turkish students which attend high-performing academic schools are more likely to have higher socio-economic status, display higher confidence in their math ability, are less engaged during class and are exposed to a richer learning environment than students attending low-performing academic schools. Policy implications of each finding are discussed in detail. / Çok düzeyli analizler Türkiye’deki okullar arası öğrenci performansı farklılıklarının okul içi performans farklılıklarından daha fazla olduğunu göstermiştir. Bu durum, okullara giriş sistemi ve buna bağlı olarak öğrenci profillerindeki ve de okulların öğrenme ortamlarındaki farklılıklardan kaynaklanabilmektedir. Türkiye’deki düşük performanslı meslek okullarına, düşük performanslı akademik okullara ve yüksek performanslı akademik okullara devam eden öğrencilerin aile geçmişleri, motivasyonel ve davranışsal katılımları ve okulların öğrenme ortamları arasındaki farklar yeteri kadar incelenmemiş olduğundan, bu çalışmada PISA 2012 verisi bu farklılıkları tespit etme amacı ile analiz edilmiştir. Sonuçlar, düşük performanslı akademik okullara giden öğrencilere kıyasla, yüksek performanslı akademik okullardaki Türk öğrencilerinin daha yüksek sosyo-ekonomik statüye sahip olduklarını, matematik becerilerine daha çok güvendiklerini, ders sırasında daha az katılım gösterdiklerini ve daha zengin bir öğrenme ortamına maruz kaldıklarını göstermiştir. Bulgular eğitim politikaları kapsamında tartışılmıştır.Publication Open Access On-site raman spectroscopic study of beads from the necropolis of Vohemar, northern Madagascar (> 13th C.)(Multidisciplinary Digital Publishing Institute (MDPI), 2021) Colomban, Philippe; Koleini, Farahnaz; Franci, Gülsu Şimşek; Researcher; Koç University Surface Science and Technology Center (KUYTAM) / Koç Üniversitesi Yüzey Teknolojileri Araştırmaları Merkezi (KUYTAM)In the late 19th century, ancient tombs were discovered near the village of Vohemar at the northeastern point of Madagascar, and subsequent excavations during the French period (1896-1945) revealed the presence of a major necropolis active from similar to 13th to 18th centuries. Some artefacts (Chinese ceramic shards and glass trade beads) recovered from these excavations was sent to France and now in part belong to the collection of the Musee d'Histoire Naturelle, Nimes. Carnelian and glass trade beads were analyzed with a mobile Raman spectrometer, which identified different materials (soda-lime glass, quartz/moganite, carnelian/citrine, chalcedony) and coloring agents (Naples yellow, cassiterite, amber chromophore, transition metal ions, etc.). The results are compared with those obtained on beads excavated at different sites of Southern Africa and at Mayotte Island, and it appears that (most of) the beads come from southern Asia and Europe. The results confirmed the role that northern Madagascar played within the maritime networks of the Western Indian Ocean during the 15th-16th century.Publication Open Access Overview of CLEF 2019 lab protestnews: extracting protests from news in a cross-context setting(Springer, 2019) Department of Sociology; Department of Computer Engineering; Hürriyetoğlu, Ali; Yörük, Erdem; Yüret, Deniz; Yoltar, Çağrı; Gürel, Burak; Mutlu, Osman; Akdemir, Arda; Teaching Faculty; Faculty Member; Faculty Member; Researcher; Faculty Member; Researcher; Department of Sociology; Department of Computer Engineering; Graduate School of Social Sciences and Humanities; Graduate School of Sciences and Engineering; N/A; 28982; 179996; N/A; 219277; N/A; N/AWe present an overview of the CLEF-2019 Lab ProtestNews on Extracting Protests from News in the context of generalizable natural language processing. The lab consists of document, sentence, and token level information classification and extraction tasks that were referred as task 1, task 2, and task 3 respectively in the scope of this lab. The tasks required the participants to identify protest relevant information from English local news at one or more aforementioned levels in a cross-context setting, which is cross-country in the scope of this lab. The training and development data were collected from India and test data was collected from India and China. The lab attracted 58 teams to participate in the lab. 12 and 9 of these teams submitted results and working notes respectively. We have observed neural networks yield the best results and the performance drops significantly for majority of the submissions in the cross-country setting, which is China.Publication Open Access Portable X-ray Fluorescence (p-XRF) uncertainty estimation for glazed ceramic analysis: case of Iznik tiles(Multidisciplinary Digital Publishing Institute (MDPI), 2020) Arlı, Belgin Demirsar; Kaya, Şennur; Arlı, Hakan; Colomban, Philippe; Franci, Gülsu Şimşek; Researcher; Koç University Surface Science and Technology Center (KUYTAM) / Koç Üniversitesi Yüzey Teknolojileri Araştırmaları Merkezi (KUYTAM)The aim of this study is to estimate the uncertainty of a portable X-ray fluorescence (p-XRF) instrument for the (semi-quantitative) analyses of tiles with underglaze decoration. Before starting the campaign of on-site measurements, the optimum acquisition time and the most accurate calibration mode were selected. For this purpose, the elemental composition of two glass standards of NIST (SRM610 and SRM612) and a Corning A standard were measured with varied times (5-360 s) and in different calibration modes (Mining, Mining Light Elements, Soil, and Rare Earth Elements). Afterwards, a set of blue-and-white tiles that was unearthed at Iznik Tile Kilns Excavation between the dig seasons of 2015 and 2019 was examined with p-XRF by selecting ten points of measure from each layer (body, transparent glaze, and blue coloured areas). The elemental composition of different layers was evaluated by means of the intragroup and intergroup data. They were also compared to the previous studies and found that the corrosion-free, homogeneous, and non-porous surfaces decrease the relative standard deviation (RSD) by increasing the consistency of the compositional data. The major elements found in the matrix of each layer (Al and Si for the body, Pb and Sn for the glaze) have the lowest value of RSD, as expected. However, the comparison of the data with the analysis of the reference materials showed that the content of Mg and also Si, which belong to the low-Z elements group, is shifted relatively towards the higher compositional values. The impossibility of measuring the elemental composition of sodium does not hinder the classification of the samples. Although the transition metals have very low concentrations, p-XRF measurements appear rather consistent and the intrinsic scattering of the data observed for a single artefact is largely smaller than those observed for the tiles of different historical buildings. Thus, it allows the classification to be made related to the different techniques used.Publication Open Access The translation of Republic 606A3-B5 and Plato's partite psychology(The University of Chicago Press, 2019) Department of Philosophy; Storey, Damien; Faculty Member; Department of Philosophy; College of Social Sciences and HumanitiesPublication Open Access Turkish censorship, cultural translation, and the trial of William S. Burroughs's the soft machine(University of Arizona (AU) Press, 2016) Department of Comparative Literature; Mortenson, Erik; Faculty Member; Department of Comparative Literature; College of Social Sciences and Humanities