789 research outputs found
Security analysis of revocable and bipartite biotokens
No full textNeyire Deniz Sarıer (Saner) (MEF Author)##nofulltext##In this paper, we analyze the security of bipartite biotokens that release a secret key hidden in the biotoken by using biometrics. We show that the biotoken encoding of 80/112/128-bit symmetric encryption keys are vulnerable to brute force attacks, whose complexity is lower than cryptographic security. Also, we present the weaknesses in the design of revocable biotokens that form the basis for bipartite biotokens. Finally, we propose countermeasures to prevent these attacks and discuss the employment of other efficient cryptographic techniques that possess provable security guarantees.WOS:0003760875000142-s2.0-84966839172Conference Proceedings Citation Index- ScienceProceedings PaperKasımYÖK - 2015-1
Deniz: A Robust Bidding Strategy for Negotiation Support Systems
No full textThis paper presents the Deniz agent that has been specifically designed to support human negotiators in their bidding. The design of Deniz is done with the criteria of robustness and the availability of small data, due to a small number of negotiation rounds in mind. Deniz’s bidding strategy is based on an existing optimal concession strategy that concedes in relation to the expected duration of the negotiation. This accounts for the small data and small number of rounds. Deniz deploys an adaptive behavior-based mechanism to make it robust against exploitation. We tested Deniz against typical bidding strategies and against human negotiators. Our evaluation shows that Deniz is robust against exploitation and gains statistically significant higher utilities than human test subjects, even though it is not designed specifically to get the highest utility against humans.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Interactive Intelligenc
The Pitfalls of Secularism in Turkey: An Interview with Deniz Kandiyoti
No full textDeniz Kandiyoti is Emeritus Professor of Development Studies at the School of Oriental and African Studies, University of London. Her work on gender, development, nationalism, and Islam has been deeply influential within feminist studies, development studies and Middle Eastern studies. Her path-breaking essay ‘Bargaining with Patriarchy’ appeared in the journal Gender and Society in 1988. She is the author of Concubines, Sisters and Citizens: Identities and Social Transformation (1997) and the editor of Fragments of Culture: The Everyday Life of Modern Turkey (2002), Gendering the Middle East (1996), Women, Islam and the State (1991)
Doğuş himota insansız deniz taşıtı
No full textTüzel, Nuri (Dogus Author) -- Akıncı, Gürcan Şahin (Dogus Author) -- Tükel, Dilek (Dogus Author) -- Conference full title: Elektrik Elektronik Mühendisliği Kongresi, EEMKON 2017: İstanbul, Türkiye, 16-18 Kasım 2017.İnsansız deniz araçları, insanlı araçlarla yapılamayacak askeri operasyonlarda veya insan hayatını riske eden görevlerde yer alabilmektedir. Projemizin hedefi Raspberry Pi 3 kullanarak insansız deniz aracı yapmaktır. Aracımız operatör tarafından manüel olarak veya önceden belirlenmiş yörüngeleri otomatik olarak takip edebilme yeteneğine sahiptir.Unmanned sea vehicles have the potential, and in some cases the demonstrated ability, to reduce risk to manned forces to accomplish military missions, perform tasks. Our project mission is to develop an unmanned sea vehicle that have onboard PC-based Raspberry Pi 3 controller. Dogus Himota USV can be operated manually or it can follow autonomously predetermined trajectories
Cyclic and monotonic compression behavior of CFRP-jacketed damaged noncircular concrete prisms
No full textKorhan Deniz Dalgıç (MEF Author)This paper focuses on rehabilitation/strengthening of damaged concrete prisms through external carbon-fiber-reinforced polymer (CFRP) jacketing. In order to evaluate the efficiency of the strengthening method on the damaged concrete prisms, an experimental study including 22 concrete prisms with square and rectangular cross sections was carried out. The parameters of the experimental study are the damage levels. Furthermore, effects of loading scheme (monotonic or cyclic) and cross section type (square and rectangular) were investigated in the existence of damage. The concrete prisms were tested under compression stresses up to three specified axial deformation levels to be representative of slight, moderate, and severe compression damages before strengthening. Tests were repeated after rehabilitation/strengthening of damaged specimens with CFRP jacketing. Test results showed that CFRP rehabilitation/strengthening was effective on enhancement of strength and deformability of the damaged concrete prisms. However, the efficiency of the strengthening method in terms of compressive strength tended to reduce when the level of damage increased. Furthermore, an available model is modified to include the effects of damage level, and the modified model is shown to produce accurate results. (C) 2015 American Society of Civil Engineers.WOS:0003700801000262-s2.0-84955616918Science Citation Index ExpandedArticleUluslararası işbirliği ile yapılmayan - HAYIRŞubatYÖK - 2015-1
034 - Deniz Besiktepe Karaman
No full textIncludes bibliographical references.As a part of facilities management (FM), building maintenance activities occupy a significant role in reaching the goal of delivering an acceptable level of performance while minimizing costs and failures. For institutional organizations, an effective FM approach is required to ensure their buildings function properly. Historical work order data may potentially include a substantial value for assessing the condition of building systems by helping to identify common maintenance activities. This study conducts a preliminary analysis of historical work order data collected from six educational institutions in the State of Colorado and Connecticut in the United States between 2008 and 2018
Travma ve Anlatı. Ed. Deniz Gündoğan İbrişim. İzmir: Livera, 2024.
No full textTravma ve Anlatı [Trauma and Narrative] is a multi-author anthology that explores the relationship between trauma and literature, culture, memory, and social structures from both theoretical and literary perspectives. Edited by Deniz Gündoğan İbrişim, the book aims to open new pathways in trauma studies by addressing individual, collective, environmental, and ecological trauma experiences through various texts, while also discussing literature's power to articulate these experiences.Travma ve Anlatı adlı kitap, travmanın edebiyat, kültür, bellek ve toplumsal yapılarla ilişkisini irdeleyen, hem kuramsal hem de edebî perspektiflerden travma kavramına yaklaşım geliştiren çok yazarlı bir derleme çalışmadır. Deniz Gündoğan İbrişim'in editörlüğünü yaptığı eser, travma çalışmalarına yeni yollar açmayı hedeflerken; bireysel, kolektif, çevresel ve ekolojik travma deneyimlerini farklı metinler üzerinden ele alır ve edebiyatın bu deneyimleri ifade etme gücünü tartışır
Fx Regimes, Fx Policies and Fx Risks: emerging markets perspective
No full textParlak, Deniz (Dogus Author)Due to increased capital movements and the development of information technologies, economics and finance have recently become an area of interest for everyone. This book provides information on selected topics related to economics and finance for anyone who is interested in economics and finance. In addition, theoretical knowledge is provided for the different subjects in academic studies. For this reason, this study, which consists of 22 chapters, has selected different topics on the agenda
A large Turkish pedigree with multiple endocrine neoplasia type 1 syndrome carrying a rare mutation: c.1680_1683 del TGAG
No full textBackground/Aims: Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant syndrome characterized by tumors arising from endocrine glands with no specific genotype-phenotype correlation. Here, we report the largest Turkish kindred with MEN1 syndrome which inherited a scarce MEN1 mutation gene. Materials and Methods: A 64-year-old man, referred to our gastroenterology outpatient clinic for evaluation of a pancreatic mass lesion, was diagnosed with MEN1 syndrome after endoscopic ultrasound-guided sampling of the mass revealed pancreatic neuroendocrine tumor (pNET) and accompanying primary hyperparathyroidism (PHPT) and pituitary tumor. Genetic analysis by whole gene Sanger sequencing of the MEN1 gene identified a frame-shift mutation in exon 10 (c.1680_1683delTGAG). All the relatives of the index case were proposed for clinical and genetic evaluation for MEN1 syndrome. Results: Of the 25 relatives of the index case, 17 were diagnosed with the MEN1 syndrome. Eighteen members among all relatives consented to genetic analysis, and 11 had the same mutation as the index case. All the mutation positive members had MEN1, while none of mutation-negative subjects had any sign of MEN1 syndrome. The frequencies of PHPT, pNET, and pituitary tumors in this kindred were 94.1% (16/17), 29.4% (5/17), and 29.4% (5/17) respectively. Conclusion: We report a rare MEN1 gene mutation which has been descibed in a single sporadic patient earlier. It was inherited by at least three generations of a large family, proving the strong dominant effect of the MEN1 phenotype. Further research may be conducted to clarify potential candidacy of this mutation as a hotspot for MEN1 patients, especially in the Turkish population
Myeloperoxidase and calprotectin; Any role as non-invasive markers for the prediction of inflammation and fibrosis in non-alcoholic steatohepatitis?
No full textBackground/Aims: Specific serum markers reflecting hepatic inflammation and fibrosis are required to tailor the treatment strategies in non-alcoholic steatohepatitis (NASH). We aimed to investigate the roles of myeloperoxidase (MPO) and calprotectin in predicting the hepatic inflammation status and disease severity in NASH. Materials and Methods: A total of 48 patients with biopsy-proven NASH and 25 healthy volunteers with normal weight were prospectively enroiled Serum MPO and calprotectin levels were compared between the NASH and control groups. Hepatic MPO and calprotectin expressions were compared in terms of histologic non-alcoholic fatty liver disease activity scores (NAS) (low NAS [<= 4] vs. high NAS [>5]) and fibrosis stage (insignificant [F0-1]/significant [F2-4]). Results: Serum MPO and calprotectin levels were not significantly different between the NASH and control groups. In the subgroup analysis, hepatic MPG expression was significantly increased in patients with NASH with significant fibrosis than in those with insignificant fibrosis (F2-4: 7.04 +/- 3.61 vs. F0-1: 4.83 +/- 2.42, p=0.01). We found no difference between the groups with low and high NAS with regard to serum MPG and calprotectin levels and hepatic MPG and calprotectin expressions. Conclusion: This study demonstrated that hepatic MPG expression can reflect advanced fibrosis in NASH. However, when serum MPO and calprotectin levels were evaluated as potential serum markers, both did not associate with hepatic inflammation status and fibrosis stage in NASH. Therefore, our study results preclude their use as serum markers for hepatic inflammation in NASH
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