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Yayın Sınıflandırma için diferansiyel mahremiyete dayalı öznitelik seçimi(Gazi Univ, Fac Engineering Architecture, 2018) Var, Esra; İnan, AliVeri madenciliği ve makine öğrenmesi çözümlerinin en önemli ön aşamalarından biri yapılacak analizde kullanılacak verinin özniteliklerinin uygun bir alt kümesini belirlemektir. Sınıflandırma yöntemleri için bu işlem, bir özniteliğin sınıf niteliği ile ne oranda ilişkili olduğuna bakılarak yapılır. Kişisel gizliliği koruyan pek çok sınıflandırma çözümü bulunmaktadır. Ancak bu yöntemler için öznitelik seçimi yapan çözümler geliştirilmemiştir. Bu çalışmada, istatistiksel veritabanı güvenliğinde bilinen en kapsamlı ve güvenli çözüm olan diferansiyel mahremiyete dayalı özgün öznitelik seçimi yöntemleri sunulmaktadır. Önerilen bu yöntemler, yaygın olarak kullanılan bir veri madenciliği kütüphanesi olan WEKA ile entegre edilmiş ve deney sonuçları ile önerilen çözümlerin sınıflandırma başarımına olumlu etkileri gösterilmiştir.Yayın A new late holocene eolianite record from Altinkum Beach, North Cyprus(Scientific technical research council Turkey-Tubitak, 2012-06) Erginal, Ahmet Evren; Güneç Kıyak, Nafiye; Ertek, Topçu AhmetIn this study, we investigated the main depositional characteristics and obtained Optically Stimulated Luminescence (OSL) ages of coastal eolianite on the north coast of Cyprus, where this occurrence had not previously been recorded. Based on EDX/SEM and XRD data and field observations, the studied eolianite that crops out between elevations of 1 m and 14 m a.s.l. is made up predominantly of quartz grains, most of which consist of medium- to fine-grained sand. The rock comprises aragonite, calcite and quartz with lesser amounts of bornite and hematite as accessory minerals. OSL ages indicated that the initial deposition of eolianite sands took place at 1.51 +/- 0.21 ka years ago.Yayın Optically stimulated luminescence to date coastel dunes and a possible tsunami layer on the Kavak Delta (Saros Gulf, NW Turkey)(Scientific Technical Research Council Turkey-Tubitak, 2009-01-21) Erginal, Ahmet Evren; Güneç Kıyak, Nafiye; Özcan, HasanOptically stimulated luminescence (OSL) dating was used to determine the timing of initial dune formation and reconstruct the evolution of coastal dunes that developed on the Kavak Delta, Saros Gulf, Turkey. Along a 500-mlong representative transect, dune sands were extracted from foredune, semistable (grey) dune, stable (dark) dune and dune-swamp boundary defined by a scarp 50?75 cm high. The data obtained showed that dune drift initiated 670 years ago. A pumice layer 15?20-cm-thick interbedded with marine clay and sand showed an OSL age of 340 years coinciding with underlying dune sand. XRF analysis showed that pumices were of similar composition to those erupted by plinian activity of Thera (Santorini) in 1628 BC. On the basis of OSL ages, these deposits, which are widely distributed on the western Anatolian coasts of Turkey, might have presumably transported landward along tide channels on the delta during a tsunami event that occurred in 1672 near Bozcaada and Kos islands according to tsunami history of the Aegean Sea.Yayın Türkiye’nin Kürt sorunu: Arap Baharı ile değişen yurtiçi ve bölgesel dinamikler(Uluslararası İlişkiler Konseyi Derneği, 2014-06) Kayhan Pusane, ÖzlemTürkiye’nin PKK ile mücadelesi ve daha genel olarak Kürt sorunu, 1980’lerden itibaren uluslararası gelişmelerden etkilenen konular olmuştur. 2010’da Tunus’ta başlayan ve kısa zamanda çeşitli Kuzey Afrika ve Orta Doğu ülkelerine yayılan Arap Baharı da son yıllarda Kürdistan İşçi Partisi’nin (PKK) aldığı çeşitli kararları ve örgütün davranışlarını önemli ölçüde şekillendirmiştir. Bu çalışma, Arap Baharının PKK ve Kürt sorunu ile ilgili bölgesel ve Türkiye içi dinamikleri nasıl etkilediğini, PKK’nın karar alma süreçleri çerçevesinde incelemektedir. Makalede öncelikle Arap Baharı’nın Kürt sorununu kavramsal olarak nasıl etkilediği üzerinde durulmakta, daha sonra Suriye’de yaşanan iç çatışmaların, PKK’da ve daha genel olarak Kürt sorunu üzerinde neden olduğu değişiklikler tartışılmaktadır. Son olarak, Türkiye’de Kürt sorununun çözüm süreci ile ilgili hız kazanan gelişmeler, Arap Baharı çerçevesinde değerlendirilmektedir.Yayın The effect of cyclic relative humidity exposure, sanding and grooving on the dimensional stability of solid wood parquet(Istanbul Teknik Universitesi, Faculty of Architecture, 2018) Koca, Gülru; Arıoğlu, Nihal; As, NusretIn this study, the effect of cyclic relative humidity changes, sanding and grooving on the dimensional stability of solid wood parquet were evaluated. The experiments were carried out on oak (Quercus petraea) and sapele (Entandrophrag-ma cylindiricum) wood species. Firstly some physical tests (density, shrinkage, and swelling) were carried out on 20×20×30 mm specimens obtained from these two species. After the physical tests the parquet size specimen groups were obtained both in radial and tangential section directions and in two sizes; narrow (250×50×15 mm) and wide (250×90×15 mm). One group of parquet size specimens was sanded and the other group was grooved. There was also a group of specimen for control. After being conditioned to equilibrium moisture content at 65% relative humidity, specimens were placed in a climate chamber and exposed to cyclic relative humidity changes. The dimensions of the specimens were measured between different environmental conditions and the dimensional change was evaluated by taking into consideration the mentioned physical properties. The results show that cyclic relative humidity changes mainly resulted with an increase in the dimensional stability of sanded and cyclic conditioned specimens. There was not a significant change in the dimensional stability of grooved specimens.Yayın Afforestation of arid and semiarid ecosystems in Turkey(Tubitak Scientific & Technical Research Council Turkey, 2017-05-28) Çalışkan, Servet; Boydak, MelihSustainable management of arid and semiarid forests requires careful planning and implementation. Afforestation by planting and seeding is a fundamental tool for the establishment of new forests on barren landscapes and restoration of degraded forests in arid and semiarid ecosystems. In afforestation efforts, the consideration of site preparation, selection of species, seed source, and planting methods pose a number of ecological and economic challenges. Possessing one of the world's richest floras, Turkey suffered from heavy degradation during the last millennia. Some studies suggested that forests and steppes once covered 60%-70% and 10%-15% of the Anatolian landscape, respectively. Growing population, overgrazing, clearance for agriculture, fires, excessive timber harvesting, and misuse of lands led to a 26% reduction in the forest area. The Turkish Forest Service completed 2.3 million ha of afforestation and 1.2 ha of erosion control works, mostly in semiarid landscapes. This article presents an assessment of afforestation activities in the semiarid and arid regions of Turkey and is a review of the efforts exerted during the period 1945 to 2014.Yayın The recurrence of an Indian dream, Magic Seeds(Cyprus International University, 2021) Edman, Timuçin Buğra; Boynukara, Hasan; Gözen, HacerMagic Seeds is a work of fiction, but it also serves as a reflection of the real world, the history of India, where value judgments in a society return to their starting point only by reforming in accordance with the reconstruction of a given society. Willie, who is in search of identity and a home, finds the remedy in joining the guerrilla order. However, here, he fights through the shadow of the past, which he can never escape. The shadow of the past is the hierarchy itself, and this article explores the never-ending transformation of hierarchy, anarchism, and the search for order through the novel Magic Seeds. This article is a comparative study of the novel Magic Seeds, and history, the Naxalite movement in India from the 1960s until the early 2000s. Through the historical revolutionary Naxalite movement and a political association of the Marxist–Leninist Communist Party of India in West Bengal in 1960s, this study also reveals why an anarchic movement apparently returns to its starting point, and legs behind the decolonization or reconstruction of a society due to the deep-rooted and pre-structured hierarchy in a society by considering the terms humanization, dehumanization, hierarchy, cast system, anarchism, transformation and reconstruction.Yayın Ontological insecurity, anxiety, and hubris: an affective account of Turkey-KRG relations(International Relations Council of Turkey, 2022-03-10) Kayhan Pusane, Özlem; Ilgıt, AslıGiven Iraqi Kurds’ special place in Turkey’s ‘biographical narrative’, Turkey-Iraqi Kurdish Regional Government (KRG) relations are not simply strategic or economic but also highly affectively charged. These relations involve emotional encounters filled with anxiety, pride, anger, and disappointment that generate concerns for not only Turkey’s physical security but also its ontological security. This paper traces the emotional context of Turkey-KRG relationship. It suggests that a combination of Turkey’s deep-rooted ‘anxiety’ and ‘hubris’ toward the Iraqi Kurds prevented the emergence of a close partnership between these two actors and fostered merely a ‘fragile rapprochement’ since 2008.Yayın On the origin and age of the Ariburnu Beachrock, Gelibolu Peninsula, Turkey(Scientific Technical Research Council Turkey-TUBITAK, 2008-03-13) Erginal, Ahmet Evren; Güneç Kıyak, Nafiye; Bozcu, Mustafa; Ertek, Topçu Ahmet; Güngüneş, Hakan; Sungur, Ali; Türker, GülenThe beachrock formation on the Ariburnu coast situated in the Gelibolu Peninsula has been studied by field observation, thin-section interpretation, physicochemical analyses including ICP-AES and SEM/EDS, and OSL dating. These analyses reveal the presence of different amounts of major (Si, Ca, Mg, K, Fe, Al and Na) and trace elements within the beachrock cement with Si (36.2%) and Ca (32.68%) dominating the overall composition. Beachrocks composed of highly-fractured and friable beds reach a total thickness of 80 cm extending from + 60 cm at the uppermost level down to-1 m at their most seaward extent and grade from conglomerate to lithic arkose in vertical section. The total amount of CaCO(3) ranges between 59.08% and 36% and the cement consists of high-Mg calcite based on EDS analysis. From SEM examination, four main morphologies were identified in cement material: (1) micritic coatings, (2) cryptocrystalline pore-filling cement, (3) meniscus cement and (4) microbial cement and suggest the presence of marine phreatic conditions with the exception of meniscus bridges, which imply that cementation may have been dominated by carbonate-rich meteoric waters at any successive stage of cementation. Five buried beachrock samples under unconsolidated beach sand were sampled for Optically Stimulated Luminescence (OSL) dating and show that the minimum and maximum ages of beachrock are 1.42 +/- 0.20 ka and 2.28 +/- 0.28 ka BP, respectively.Yayın Constant angle surfaces in the Lorentzian warped product manifold I ×f E²1(Tübitak, 2022-09-14) Dursun, UğurLet I ×f E²1 be a 3-dimensional Lorentzian warped product manifold with the metric g˜ = dt² + f² (t)(dx² ? dy² ), where I is an open interval, f is a strictly positive smooth function on I, and E²1 is the Minkowski 2-plane. In this work, we give a classification of all space-like and time-like constant angle surfaces in I ×f E²1 with nonnull principal direction when the surface is time-like. In this classification, we obtain space-like and time-like surfaces with zero mean curvature, rotational surfaces, and surfaces with constant Gaussian curvature. Also, we have some results on constant angle surfaces of the anti-de Sitter space H³1(?1).
