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Yayın Are your cross-ethnic friends ethnic and/or national group identifiers?The role of own and perceived cross-ethnic friend's identities on outgroup attitudes and multiculturalism(Wiley, 2018-02-01) Bağcı Hemşinlioğlu, Sabahat Çiğdem; Çelebi, ElifWe investigated how own ethnic and national identities and perceived ethnic and national identities of close cross-ethnic friends may predict outgroup attitudes and multiculturalism among Turkish (majority status, N=197) and Kurdish (minority status, N=80) ethnic group members in Turkey (M-age=21.12, SD=2.59, 69.7% females, 30.3% males). Compared with Turkish participants, Kurdish participants were more asymmetrical in rating their cross-ethnic friend's identities relative to their own, reporting higher ethnic identity, but lower national identity for themselves. Own ethnic identity was negatively associated with attitudes and multiculturalism, whereas own national identity was positively associated with only attitudes. Perceived cross-ethnic friend's national identity was positively related to both outgroup attitudes and multiculturalism. Shared national identification (high levels of own and friend's national identity) led to most positive outgroup attitudes and highest support for multiculturalism. Findings were discussed in the light of social identity and common ingroup identity models.Yayın Positive solutions for a sum-type singular fractional integro-differential equation with m-point boundary conditions(Politechnica University of Bucharest, 2017) Aydoğan, Seher Melike; Nazemi, Sayyedeh Zahra; Rezapour, ShahramWe study the existence and uniqueness of positive solutions for a sum-type singular fractional integro-differential equation with m-point boundary condition. Also, we provide an example to illustrate our main result.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 Turkey's Kurdish opening: Long awaited achievements and failed expectations(Routledge Journals, 2014-01-02) Kayhan Pusane, ÖzlemTurkish state actors have used mainly military means to first suppress the Kurdish rebellions and then to end the PKK violence from 1984 onwards. However, after the AKP came to office in 2002, the government challenged the hardline state policy and initiated a Kurdish opening. This policy has the ultimate goal of disarming the PKK and resolving the Kurdish question. However, the Kurdish opening so far has failed to bring about the desired policy outcomes because the parties to the Kurdish question have been highly divided on the side of both the state and the Kurds in Turkey.Yayın Cognitive cooperative MAC with one primary and two secondary users: achievable rates and optimal power control(IEEE-INST Electrical Electronics Engineers Inc, 2014-11) Edemen, Çağatay; Kaya, OnurWe consider a three-user fading cognitive cooperative multiple access channel (MAC) with one primary and two secondary transmitters. We propose two encoding/decoding strategies with varying levels of cooperation, based on block Markov superposition encoding and backward decoding. The first is an overlay model, where the secondary users (SUs) aid the transmission of the primary user (PU) by causally decoding the PU message and forwarding it while also cooperating among each other. The second is an underlay model, where the SUs cooperate by decoding and forwarding each other's messages while treating the signal received from the PU as noise. In either case, the PU is guaranteed to operate at its maximum achievable single user rate. We characterize the achievable SU rate region for both models and maximize this region as a function of the transmit powers. The simulation results show that the SU rate region can be significantly enlarged, particularly using the overlay model.Yayın Equilibrium and stability analysis of delayed neural networks under parameter uncertainties(Elsevier Science Inc, 2012-02-15) Faydasıçok, Özlem; Arik, SabriThis paper proposes new results for the existence, uniqueness and global asymptotic stability of the equilibrium point for neural networks with multiple time delays under parameter uncertainties. By using Lyapunov stability theorem and applying homeomorphism mapping theorem, new delay-independent stability criteria are obtained. The obtained results are in terms of network parameters of the neural system only and therefore they can be easily checked. We also present some illustrative numerical examples to demonstrate that our result are new and improve corresponding results derived in the previous literature.Yayın 21.yüzyıl çağdaş sanat önermesi olarak Peter Greenaway’in Last Supper dijital video enstalasyonu(Istanbul Univ, Research Inst Turkology, Dept Art History, 2018) Avcı Tuğal, Sibel20.yüzyılda ilk örnekleri görülen dijital teknoloji ve dijital görüntü uygulamaları 21.yüzyılla birlikte post-dijital döneme evrilmiştir. Hızla gelişen dijital görüntüleme teknolojisi ve buna bağlı gelişen dijital video ve dijital görüntü işleme teknolojileri farklı ve yeni anlam katmanları yaratmak üzere sanat alanında kullanılmaktadır. Simülasyonlarla çevrili bir yaşam alanı sunan 21. yüzyılda sanat yeniden varlığını sorgulamaktadır. İngiliz sinema yönetmeni, ressam Peter Greenaway sanatın, özellikle sinema sanatının yenilenmesi ve farklı açılımlar yapabilmesi için 8000 yıllık geçmişi olan resim sanatına yeniden bakılması gerektiğini düşünmektedir. Bu amaçla 2006 yılında, Batı Resim Sanatı’nda başyapıt olarak kabul edilen eserler üzerinde yeni bir görsel bir dil oluşturmak, farklı anlam katmanları yaratmak amacı ile “Nine Classic Paintings Revisited” projesine başlamıştır. Bu proje kapsamında yer alan başyapıtlardan biri Leonardo da Vinci’ye ait “Last Supper” freskidir. Greenaway’in bakışı ile “Last Supper” dijital video enstelasyonu makalede incelenmek üzere seçilmiştir.Yayın Asymptotic solutions of love wave propagation in a covered half-space with inhomogeneous initial stresses G(3)(1)(Işık University Press, 2015) Hasanoğlu, Elman; Negin, MasoudThe dispersive behavior of Love waves in an elastic half-space substrate covered by an elastic layer under the effect of inhomogeneous initial stresses has been investigated. Classical linearized theory of elastic waves in initially stressed bodies for small deformations is used and the well-known WKB high-frequency asymptotic technique is applied for the theoretical derivations. Numerical results on the action of the influence of the initial stresses on the wave propagation velocity for a geophysical example are presented and discussed.Yayın Placing STS in and through Turkey(Soc Social Studies Science, 2023-03-02) Alkan, Aybike; Kaşdoğan, Duygu; Maral, ErolWhy and how does it matter to undertake an STS praxis in a country where the field lacks adequate institutional recognition and capacity? This article investigates this question by tracing multiple, fragmented and contingent stories of placing STS in and through Turkey. At first sight, discontinuous stories of STS programs established in universities and unrecognized nature of STS as a discipline by the Council of Higher Education draw attention to the "underdeveloped" nature of the field in this country. This article counters such a perspective by rendering visible the works that support STS ethos as well as loose institutions within which STS is expected to flourish. By following people and artifacts in institutional and more-than institutional places of STS, this article acknowledges the efforts both to translate STS into the particular places of Turkey and to use STS as an intellectual space through which technoscientific knowledge can be questioned and translated into the local contexts of the country. The analysis of these translation efforts reveals that STS can be thought of as a space that enables one to be attuned to the sensibilities and realities of the country and search for ways to democratize the processes of technoscientific knowledge production whether it be in the universities or in public spaces.Yayın Generic BER analysis of VLC channels impaired by 3D user-mobility and imperfect CSI(Institute of Electrical and Electronics Engineers Inc., 2021-07) Reddy Sekhar, K.; Miramirkhani, Farshad; Mitra, Rangeet; Turlapaty, Anish ChandVisible light communications (VLC) has emerged as a high-speed, low-cost, and green supplement for the existing radio frequency (RF) based infrastructures. However, the performance of VLC based systems is found to degrade significantly due to detrimental outages caused by non-negligible variations in the VLC channel-gain, that are jointly induced by radial user-mobility and random photodetector-orientation (together designated as 3D mobility in this letter). In addition to the 3D user-mobility mentioned above, the performance of VLC based systems is further limited by imperfect channel-state information (CSI). Such degradations in the VLC-link caused by the aforementioned factors necessitate the quantification of performance-metrics for further benchmarking/receiver-design. In this work, an analytical expression for bit-error rate (BER) is derived for a single LED indoor VLC system considering the radial user-mobility, random receiver orientation, and imperfect CSI altogether. Further, the derived BER expressions are validated using computer-simulations using typical VLC channel models from the literature. A close agreement between the analytical and the simulated BER is observed, which verifies the accuracy of the presented analysis.
