255 research outputs found
That Uncertain Voice:Voice-as-Skin
No full textBased on Zeynep Bulut’s book, Building a Voice: Sound, Surface, Skin (Goldsmiths Press, 2025), this presentation and discussion will explore how voice can be imagined as skin and what such a conception offers in times of crisis and uncertainties. Drawing on the notions and practices of embodied voice in experimental music and participatory media art, the event will revisit individual, collective, and multi-sensory processes of voice-making in everyday life. In so doing, it will consider the conception of a voice, one that is both individual and anonymous, and one that functions like a skin, a multi-sensory interface and surface that both connects and differentiates bodies of all kinds without being limited to discursive labels of language. Through the notion of voice-as-skin, this book presentation and discussion will reflect on the ethical implications and significance of voice-making processes for global issues like environmental crisis and artificial intelligence, while also questioning rushed forms of communication and presumed understandings of empathy. Zeynep Bulut is a voice and sound theorist. She is a lecturer in Music at SARC, Centre for Interdisciplinary Research in Sound and Music, at Queen’s University Belfast. Her work theorises the emergence, embodiment and mediation of voice as skin. She is the author of Building a Voice: Sound, Surface, Skin (Goldsmiths Press, 2025). Her articles have appeared in various volumes and journals including The Oxford Handbook of Sound Art, Perspectives of New Music, Postmodern Culture, and Music and Politics. She is project lead for the research platform Music, Arts, Health, and Environment, supported by the Economic and Social Research Council’s Impact Acceleration Account at QUB. Alongside her scholarly work, she has also exhibited sound works, composed and performed vocal pieces for concert, video, and theater, and released two singles. Her composer profile has been featured by British Music Collection. She is a certified practitioner of Deep Listening. Brandon LaBelle is an artist, writer, theorist, and artistic director of The Listening Biennial. His work focuses on questions of agency, community, pirate culture, and poetics, which results in a range of collaborative and extra-institutional initiatives, including: Communities in Movement (2019-23), The Living School (with South London Gallery, 2014-16), Oficina de Autonomia (2017–), The Imaginary Republic (2014–19), Dirty Ear Forum (2013-22), Surface Tension (2003-08), and Beyond Music Sound Festival (1998-2002). In 1995, he founded Errant Bodies Press, an independent publishing project supporting work in sound art and studies, performance and poetics, artistic research and contemporary political thought. His publications include: Poetics of Listening (2025), Acoustic Justice (2021), The Other Citizen (2020), Sonic Agency (2018), Lexicon of the Mouth (2014), Acoustic Territories (2010, 2019), and Background Noise (2006, 2015). Holger Schulze is a full professor of musicology at the University of Copenhagen and the principal investigator at the Sound Studies Lab. His sonic anthropology explores how sounds and listening in the 21st century stabilise, disrupt, and permeate everyday life. Artistic practices and everyday objects are both of equal concern to his sonic critique. He is currently writing a book on meme music and working on The Bloomsbury Encyclopedia of Sound Studies in three volumes (as one of three editors-in-chief with Jennifer Stoever and Michael Bull), as well as The Bloomsbury Handbook of Sound in Museums (with Alcina Cortez, Gabriele Rossi Rognoni, and Eric de Visscher). His publications include: The Bloomsbury Handbook of the Anthropology of Sound (2021, ed.), Sonic Fiction (2020), The Sonic Persona (2018) and Sound as Popular Culture. A Research Companion (2016, co-ed. with Jens Gerrit Papenburg).00:00 Introduction by Christoph F. E. Holzhey04:36 Talk by Zeynep Bulut36:00 Discussio
İris görüntülerinin analiziyle kimlik tanıma
No full textİRİS GÖRÜNTÜLERİNİN ANALİZİYLE KİMLİK TANIMA Günümüz teknolojisinde ek güvenlik ihtiyaçlarına cevap verebilen biyometrik sistemler, kişilerin ve biyolojik ürünlerin sahip olduğu, özgün fiziksel ve davranışsal özellikleri kullanan bir örüntü eşleme sistemidir. Biyometrik sistemler, şifre hatırlama ya da kimlik taşıma gibi ihtiyaçlara gerek duymadan, sadece kişiye ait olan özellikleri kullanır. Bu sistemler kişiye ait bilgileri kaydedip bir veritabanı oluştururlar ve daha sonra her güvenlik sorgulamasında kullanırlar. Bu tez kapsamında yaşam boyu kararlı olması, ayrıt edici özelliklerinin diğer biyometrik tekniklere göre çok daha fazla olması, iyi korunan iç organ olması,taklit edilmesinin imkansız olması,uzaktanda görülebilmesi, yüksek rastgeleliğe sahip olması, genetik benzerliğin azlığı, görüntü alınırken herhangi bir temas olmadan kolayca alınabilmesigibi nedenlerden dolayı irisi temel alan bir biyometrik tanıma sistemi üzerinde çalışılmıştır. Sistemde kullanılan veritabanındaki imgelerden iris bölgesinin elde edilebilmesi için, Canny kenar bulma algoritması ve Hough transformu kullanılmıştır. Alınan göz imgelerinde kestirilen iris imgesi kutupsal formdan dikdörtgen forma dönüştürülmüştür. Normalleştirilmiş iris deseni Gabor dalgacıkları ile konvolve edilmesiyle öznitelik çıkarım işlemi gerçekleştirilmiş ve filtre çıkışındaki gürültünün etkisini önlemek için çevrelenmiş piksellerin yoğunlukları ortalama olarak alınmıştır. Her bir fazör için iki data biti üreten her bir filtreyle faz dört seviyeye quantize edilmiştir. Son olarak eşleştirme için bitsel karşılaştırmalar gerekli olduğundan Hamming uzaklığı kullanılmıştır.Çalışma sürecinde filtrelemeler, görüntü işleme gibi kullanılan süreçlerin tümü MATLAB ortamında gerçekleştirilmiştir. Bu tez çalışmasında gerçekleştirilen sistemin performansını test etmek için ROC analizi yapılmıştır. Analiz sonuçlarına göre, geliştirilen sistem kimlik tanımlama hassasiyeti ile tatmin edici sonuç sağlamıştır.IDENTITY RECOGNITION TROUGH ANALYSIS OF IRIS IMAGES Biometric systems which can response to additional security needs in peresent technology, is an image matching systems which uses original physcal and behavioral properties of which people their biological products have. Biometric systems use only properties of person, therefore remembering password or carrying ID card is not required. These systems record the personal information and make up a database, and then used for every security inquiry. In the scope of this thesis studies have been implemented for iris recognation systems based on iris which is accepted as one of the most reliable biometric characteristics due to reasons like its highes discrimination ratio between human beings, being a well-protected internal organ, being impossible to imitate, low genetical likeness and no contact while capturing the image. Canny edge detection algorithm and Hough transform have been used in order to obtain iris recognation from the images in the database. Iris image extracted from eye. Images have been trcensformed from polar form to rectangular form. In order to obtain the iris zone from the pictures on the data base used on the system, Canny edge detection algorithm and Hough transform were used. The iris picture which was cut at received eye pictures was transformed from circular form into rectangular form. Normalized iris design was convoluted by Gabor ripples and so, self-quality deduction procedure was obtained and, in order to prevent the effect of the noise at the filter outlet, the density of the surrounded pixels was taken on an average. The phase was encoded to four levels by each filter generating two data bits for each phaser. And finally, Hamming distance was used since bit comparisons were necessary for matching. During the study, all the processes such as filtrations, picture processing etc were done at MATLAB environment. ROC analysis has been carried out in order to test the performance of the thesis study. According to the analysis reports, the developed system has been provided satisfying results through ID recognition precision
Organizational power resources and psychological capital relations in schools
No full textEğitim Bilimleri Enstitüsü, Eğitim Bilimleri Ana Bilim Dalı, Eğitim Yönetimi ve Denetimi Bilim DalıBu çalışmanın amacı, okul yöneticilerinin kullandığı güç kaynakları ile bu okullarda görev yapan öğretmenlerin psikolojik sermaye ilişkisini incelemektir. Araştırmada, tarama modeli kullanılmıştır. Okul yöneticilerinin kullandığı güç kaynağı türleriyle öğretmenlerin psikolojik sermaye düzeylerini belirlemek amacıyla, Çanakkale il merkezinde yer alan ilkokul, ortaokul ve lisede görev yapmakta olan 360 öğretmene, Yılmaz ve Altınkurt (2013) tarafından hazırlanan "Okullarda Örgütsel Güç Ölçeği (OÖGÖ)" ve Bayır(2018) tarafından Türkçe'ye uyarlanan "Psikolojik Sermaye Ölçeği (PSÖ) uygulanmıştır. Araştırma evreni Çanakkale il merkezindeki okullardan oluşturulmuştur. Araştırma örneklemi, Çanakkale il merkezinde bulunan 41 okuldan tabakalı örnekleme yöntemi kullanılarak oluşturulmuştur. Örneklemdeki okullar, sosyo- ekonomik durumları incelenerek, alt, orta ve üst olmak üzere 3 gruba ayrılan 15 okuldan oluşturulmuştur. Öğretmenler tarafından cevaplanan "Okullarda Örgütsel Güç" ve "Psikolojik Sermaye Ölçeği" veri sonuçları SPSS 18.0 programında analiz edilmiş, bu sayede okul yöneticilerinin güç kaynakları ve öğretmenlerin psikolojik sermaye düzeyleri değerlendirilmiştir. Bilgi Tanıma Formunda yer alan cinsiyet ve medeni durum değişkenlerinin örgütsel güç kaynakları ve psikolojik sermaye düzeyleriyle analizinde t- test, diğer değişkenlerin analizinde ANOVA kullanılmıştır. Örgütsel güç türünün alt boyutlarıyla ilişkisi ve güç türleriyle psikolojik sermaye boyutlarının ilişkisi için Pearson korelasyon kullanılmıştır. Psikolojik sermaye boyutlarının örgütsel güç türlerine etkisini ortaya koymak için çoklu regresyon analizi yapılmıştır. Araştırmada örgütsel güç kaynağı ve psikolojik sermayenin alt boyut ölçeklerinin nicel verilerine göre, örgütsel güç kaynağı türleri ve psikolojik sermaye boyutlarının ilişkili olduğu görülmüştür. Okul yöneticilerinin güç kaynağı türlerini kullanma durumu, öğretmenlerin demografik özelliklerine göre değişmektedir. Öğretmenlere göre, okul yöneticisinin en çok kullandığı güç kaynağı yasal güçtür. Örgütsel güç kaynağı alt boyutları ile psikolojik sermayenin alt boyutları arasında uzmanlık gücü alt boyutu ile psikolojik dayanıklılık alt boyutu haricindeki alt boyutlar arasında pozitif korelasyon görülmüştür. Öğretmenlerin psikolojik sermaye alt boyutlarının (umut, öz yeterlilik, iyimserlik ve psikolojik dayanıklılık), örgütsel güç türü değişkenlerinin (yasal güç, zorlayıcı güç, uzmanlık gücü, karizmatik güç ve ödül gücü) belirlenmesinde anlamlı bir yordayıcı olduğu sonucuna ulaşılmıştır.Purpose of this study is analyzing the relation between power resources of administrators who work at educational organizations and psychological capital of teachers who work at a state school. In this research scanning model is used. In order to determine the psychological capital levels of teachers with the power source types used by the school administrators, 360 teachers who were working in primary, secondary and high school in Çanakkale city center were prepared by Yılmaz and Altınkurt (2013). The çeği Psychological Capital Scale (PSQ) was applied to Turkish. The research sample was formed by using a stratified sampling method. 15 Schools were chosen which divided 3 groups, bottom, average and top, that are included sample was analyzed by their socio-economic status. Power resources of administrators and level's of teachers' psychological capital were evaluated by answers to "Organizational Power" and "Psychological Capital Scale" which were handed out to the teachers that entered to SPSS 18.0. When organizational power types and psychological capital's aspect variable which are sex, marital status and other variables were defined at information request form were analyzed by t-test, ANOVA was used to analyze other variables. Pearson Correlation was used to determine relations between organizational power's subdimensions and relations between power types and psychological capital's subdimetions. Multiple regression analysis was made to prove the effect of psychological capital's dimensions to organizational power types. In this study, to quantitative data of organizational power resources and psychological capital's dimension's scale, organizational power types and levels of psychological capital were ascertained as at a sufficient level. Administrators' state of using power resource types varies to teachers' demographic status. It was concluded that the teachers' psychological capital sub-dimensions (hope, self-efficacy, optimism and psychological resilience) were a significant predictor of determining the organizational power type variable (legal power, coercive power, expertise power, charismatic power and reward power
Evaluatİon of women's beliefs about pap smear screening using the health belief model scale
No full text*Bulut, Ülkü ( Aksaray, Yazar )Objective: To evaluate women's beliefs about screening Pap smear test.
Material and Method: The survey has been conducted through a questionnaire prepared by researchers, based on the Health Belief Model Scale for the Pap smear test. The participants consisted of 266 women between 18-70 years of age registered at a Family Health Center in Izmir. Their beliefs about screening Pap smear test were evaluated using the Health Belief Model Scale.
Results: The mean age of first sexual intercourse was 21.67 +/- 4.5 (min:13--max:45 years), 86.5% reported a single partner and 41.0% of them (n=109) had never undergone a Pap smear test. Women who previously had a Pap smear test had high scores of sensitivity, seriousness, advantage and motivation, health motivation subscales, but the mean scores for obstacles were low. There was a difference between seriousness, health motivation subscales and taking the Pap smear test (p=0.021, p=0.006). The Mean scores of seriousness and health motivation of Health Belief Model Scale were higher. There was no difference between education level, working status and undergoing a Pap test (p>0.05).
Conclusion: Having a Pap smear test is still moderately frequent and there are obstacles. Planning the interventions to eliminate Pap smear test barriers is an important issue for family physicians
Distributed Attestation Revocation in Self-Sovereign Identity
No full textSelf-Sovereign Identity (SSI) aspires to create a standardised identity layer for the Internet by placing citizens at the centre of their data, thereby weakening the grip of big tech on current digital identities. However, as millions of both physical and digital identities are lost annually, it is also necessary for SSIs to possibly be revoked to prevent misuse. Previous attempts at designing a revocation mechanism typically violate the principles of SSI by relying on central trusted components. This lack of a distributed revocation mechanism hampers the development of SSI. In this paper, we address this limitation and present the first fully distributed SSI revocation mechanism that does not rely on specialised trusted nodes. Our novel gossip-based propagation algorithm disseminates revocations throughout the network and provides nodes with a proof of revocation that enables offline verification of revocations. We demonstrate through simulations that our protocol adequately scales to national levels.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.Data-Intensive System
Reputation-Based Data Carrying for Web3 Networks
No full textWeb3 networks are emerging to replace centrally-governed networking infrastructure. The integrity of the shared public infrastructure of Web3 networks is guaranteed through data sharing between nodes. However, due to the unstructured and highly partitioned nature of Web3 networks, data sharing between nodes in different partitions is a challenging task. In this paper we present the TSRP mechanism, which approaches the data sharing problem through nodes auditing each other to enforce carrying of data between partitions. Reputation is used as an analogue for the likelihood of nodes interacting with nodes from other partitions in the future. The number of copies of data shared with other nodes is inversely related to the nodes’ reputation. We use a real-world trace of Twitter to show how our implementation can converge to an equal number of copies as structured approachesGreen 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.Data-Intensive System
Predictors of ADHD persistence in elementary school children who were assessed in earlier grades: A prospective cohort study from Istanbul, Turkey
No full textBackground: Attention-deficit hyperactivity disorder (ADHD) is the most common neurodevelopmental disorders among school-age children worldwide. In a more recent follow-up study, Biederman et al. found that 78% of children diagnosed with ADHD between the ages of 6-17 years continued to have a full (35%) or a partial persistence after eleven years. Objective: In this study, it was aimed to identify the factors contributing to the persistence of ADHD symptoms in elemantary school children who were prospectively assessed both in their earlier and upper grades. Methods: The sample was drawn from a previous community-based study where ADHD symptoms in 3696 first/or second graders were examined in regard to their school entry age. Two years after, the families of the children that participated in the initial study were called by phone and invited to a re-evaluation session. Among those who were reached, 154 were consequently eligible and were assessed with Swanson, Nolan and Pelham questionnaire (SNAP-IV), Conners' rating scales (CRS) and the Kiddie schedule for affective disorders and schizophrenia (K-SADS). Results: Of the 154 children, 81 had been evaluated to have probable ADHD by the initial interview. Among these 81 children, 50 (61.7%) were indeed diagnosed with ADHD after two years. Initial scores of the teacher reported SNAP-IV inattention subscale predicted the ADHD diagnosis after two years, with an odds ratio of 1.0761 (p = 0.032, Wald: 4.595). Conclusions: Our results suggest that high inattention symptom scores reported by the teacher in the earlier grades, might predict an ADHD diagnosis in upper grades. (c) 2020 The Japanese Society of Child Neurology Published by Elsevier B.V. All rights reserved
Relationship between Oxidative Stress and Cellular Adenosine Triphosphate Levels
No full textOxidative stress (OS) refers to the deterioration of the balance between oxidants and antioxidants in favor of oxidants, and this may lead to disruptions in redox signaling and control and/or damage at the molecular level. The presence of low levels of reactive oxygen species (ROS) plays a physiological role in intracellular signaling pathways. However, damage may occur in cells and tissues as a result of excessive increase in ROS production. Because ROS have the potential to damage almost all structures in the cell, including lipid, protein, deoxyribo nucleicacid (DNA). The main source of free radicals in the cell is mitochondria. ROS formation is a natural consequence of oxidative phosphorylation resulting in adenosine triphosphate (ATP) production in mitochondria. The attack of these radicals results in damage to the mitochondria, a decrease in the activity of oxidative phosphorylation enzymes and consequently a decrease in ATP synthesis. On the other hand, ATP is needed for antioxidant synthesis, which is necessary for cell defence against increasing ROS. Therefore, a decrease in ATP levels makes tissues vulnerable to OS. In this case, it is likely that tissues exposed to OS will also have problems in ATP production and the decrease in ATP synthesis will further increase oxidative damage
ORGANIZATIONAL POWER RESOURCES AND PSYCHOLOGICAL CAPITAL RELATIONS IN SCHOOLS
No full textIn this study, the relationship between psychological capital and the power resources used by the administrator in the educational organizations is researched. In the organizations and, especially, in the educational organizations expertise, reward power, compelling power, legal power, and charismatic power are the power types that managers use and are of great importance. This affects the psychological situations of the teachers in the school organization which reflects their performance and their daily lives. In this context, studies regarding the psychological capital concept have gained pace and importance. In the study, the concepts of optimism, hope, psychological durability and self-efficacy that are the dimensions of the psychological capital are emphasized. The psychological capital concept is becoming increasingly important and it can be said that there is a mutual interaction with the organizational power concept. When the writings are scanned and examined regarding this topic, it can be said that the power and the power types used by the school administrators in the school organizations can be influential on the psychological capital dimensions of the teachers such as optimism, hope, psychological durability, and self-efficacy
Period changes of two contact binaries: DF Hya and WZ And
No full text33rd International Physics Congress of the Turkish-Physical-Society (TPS) -- SEP 06-10, 2017 -- Bodrum, TURKEYOrbital period variations of two contact binaries DF Hya and WZ And are analyzed with the least-squares method by using all available minima times. It is shown that the period variations of these systems are due mainly to the LightTime Effect (LITE) due originates from gravitational influence of a third body. New LITE elements such as, orbital periods and minimum masses of possibility third bodies are given.Turkish Phys So
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