Aperta - Türkiye Açık Arşivi

Son yüklenen çalışmalar

Görüntüle

2018 (v1) Konferans bildirisi Açık Erişim

A Blockchain-based Certification System for Education: BCERTIFICATED

Ölmez, Ayşe Ceyda; Öksüzer, Şafak; Adnan, Müge; Karaarslan, Enis

This study is an attempt to solve the certificate validation problem in open and distance learning programs, and has been specifically designed for a professional development program provided by a state university in Turkey. The certification process of the training involves different actors (students, teachers, authorities) and the progress of trainees is tracked closely since completion of the training is based on process evaluation. Blockchain technology and smart contracts are used as a solution to document, validate, and verify the certification process. Hyperledger Fabric is used in...

Yüklenme tarihi: 19/09/2024

Görüntüle

2021 (v1) Kitap bölümü Açık Erişim

An Artificial Intelligence Based Decision Support and Resource Management System for COVID-19 Pandemic

Karaarslan, Enis; Aydın, Doğan

COVID-19 crisis has shown that the World is not ready for such a rapid spread of a virus resulting in a catastrophic pandemic. Effective use of information technologies is one of the key aspects in reducing the adverse effects of any epidemic or pandemic. Existing management systems have failed to fulfill requirements for curbing the rapid spread of the virus. This chapter firstly describes the current solutions by giving real-world examples. Then, we propose an epidemic management system (EMS) that relies on unimpeded and timely information flow between nations and organizations to ensure...

Yüklenme tarihi: 19/09/2024

Görüntüle

2013 (v1) Dergi makalesi Açık Erişim

Tarih Metodolojisi Çalışmalarına Bir Katkı: Michael Postan ve Tarihçilik Anlayışı

Çatal, Barış

Öz Michael Postan Türkiye’de pek tanınmasa da tarihçiliğin iki alanında etkili olmuş bir kişiliktir. Bunlardan ilki doğrudan uzmanlık alanı olan Orta Çağ Avrupası, diğeri ise tarih metodolojisi alanıdır. Metodoloji alanındaki perspektifi John Tosh ve Peter Burke gibi tarihçiler tarafından paylaşılmıştır. Diğer taraftan Eric Hobsbawm, Postan’ı eski Marksist tarihçiler arasında değerlendirirken, Harvey J. Kaye, Postan’ın çalışmalarını Marksist olmasa bile materyalist bulur. Yine Eric Hobsbawm Cambridge’te kendilerinde Annales üzerinden bir farkındalık yaratılmasını, Annales’ten haberdar...

Yüklenme tarihi: 14/09/2024

Görüntüle

2024 (v1) Dergi makalesi Açık Erişim

Roles of mobile applications in removing barriers to individual recycling: Case of Türkiye

Dursun, İnci; Tümer, Ebru; Yürüyen Kılıç, Hediye

Recycling literature lists barriers that deter individuals from engaging in recycling behavior. These barriers comprise cost-related barriers such as the behavior being challenging, personal barriers such as lack of knowledge or laziness, social barriers such as lack of support from family, believing that others do not recycle, and structural barriers such as hard-to-access recycling bins or lack of incentives. Removing or alleviating these barriers is critical for increasing source separation and recycling rates. In addition to other measures taken, mobile applications (recycling apps)...

Yüklenme tarihi: 13/09/2024

Görüntüle

2023 (v1) Konferans bildirisi Açık Erişim

Challenges Encountered in Column Tests Under Eccentric Axial Load and Proposed Solutions

Ahmet Özbayrak

The difficulties encountered in experimental research cause loss of time and money. For this reason, both the sample production process and the experimental setup design are extremely important. In this study, the difficulties encountered in column tests under uniaxial bending and the solution of the problem are presented. For the solution, the structure of the end regions of the columns and the design of the support plates of the experimental setup are revised and the expected column buckling behavior is obtained. The unreinforced concrete cover in the end zones of the columns breaks...

Yüklenme tarihi: 13/09/2024

Görüntüle

2020 (v1) Dergi makalesi Açık Erişim

A Methodology for Comparing the Reliability of GPU-Based and CPU-Based HPCs

Cini, Nevin; Yalcin, Gülay

Today, GPUs are widely used as coprocessors/accelerators in High-Performance Heterogeneous Computing due to their many advantages. However, many researches emphasize that GPUs are not as reliable as desired yet. Despite the fact that GPUs are more vulnerable to hardware errors than CPUs, the use of GPUs in HPCs is increasing more and more. Moreover, due to native reliability problems of GPUs, combining a great number of GPUs with CPUs can significantly increase HPCs’ failure rates. For this reason, analyzing the reliability characteristics of GPU-based HPCs has become a very important...

Yüklenme tarihi: 12/09/2024

Görüntüle

2024 (v1) Dergi makalesi Açık Erişim

Multilevel Thresholding for Brain MR Image Segmentation using Swarm-Based Optimization Algorithms

Toprak, Ahmet Nusret; Şahin, Ömür; Kurban, Rifat

Image segmentation, the process of dividing an image into various sets of pixels called segments, is an essential technique in image processing. Image segmentation reduces the complexity of the image and makes it easier to analyze by dividing the image into segments. One of the simplest yet powerful ways of image segmentation is multilevel thresholding, in which pixels are segmented into multiple regions according to their intensities. This study aims to explore and compare the performance of the well-known swarm-based optimization algorithms on the multilevel thresholding-based image...

Yüklenme tarihi: 10/09/2024

Görüntüle

2018 (v1) Dergi makalesi Açık Erişim

Sabiha Sertel ve Amerikan İşçi Hareketi

Çatal, Barış

Öz: Sabiha Sertel 1937’deki Amerika ziyaretinde Amerikan işçi hareketi üzerine bir yazı kaleme alır. Bu yazıda Yardım Kanunu’ndan, Amerikan Emek Federasyonu’ndan (AFL), Sanayi Örgütleri Komitesi’nden (CIO) söz eder ve bu örgütleri okuyucuya tanıtır. Akabinde Amerikan Sosyalist Partisi (SPA) ve Amerikan Komünist Partisi’ni de (CPUSA) yazısına konu edinir. Komünist Parti’nin “birleşik cephe” siyasetini destekler. Bu yönleriyle Sabiha Sertel’in yazısı Komintern’in resmi siyasetiyle de uyumludur.

Yüklenme tarihi: 09/09/2024

Görüntüle

2024 (v1) Dergi makalesi Açık Erişim

The Relationship of Aesthetic Dentistry Practices with Depression and Social Appearance Anxiety in Young Women

Öcal, Fikri; Öcal Demirtaş, Yasemin

Purpose: This study aimed to evaluate the relationship between depression and social appearance anxiety in young female patients who applied for aesthetic dental treatment. Methodology: The study was conducted in a single centre and included 56 female patients aged 18–35 years. The mean age of the participants was 22.27 ± 5.62 years. Participants were informed before treatment, and the Beck Depression Inventory (BDI), Social Appearance Anxiety Scale (SAAS), and Visual Analogue Scale (VAS) were administered. Immediately after the treatment and 1 month later, the SAAS and VAS were...

Yüklenme tarihi: 07/09/2024

Görüntüle

2022 (v1) Dergi makalesi Açık Erişim

Forming a Decentralized Research Network: DS4H

Karaarslan, Enis; Birim, Melih; Ari, Hüseyin Emre

There is a trend toward decentralized systems, but these systems are developed without conducting enough software tests. Also, the performance, scalability, and sustainability of the decentralized systems are not taken into account. One of the reasons is the time-consuming testing process. The other is the hardware requirements and the complexity of the software installations of the testing environment. Developer communities need stable and secure research networks to test and develop prototypes before releasing the working versions. Cloud-based blockchain test networks are available, but...

Yüklenme tarihi: 06/09/2024

Aperta Nedir?

Aperta Türkiye Açık Arşivi ULAKBİM tarafından yönetilen, odak noktası açık veri olan çok disiplinli bir açık veri havuzudur.

Aperta'nın Kapsamı Nedir?

Güvenli ve Güvenilir — Verileriniz TUBİTAK ULAKBİM’de var olduğu sürece ULAKNET tarafından güvenli bir şekilde saklanır.
DOI Desteği — kayıtlara atıf yapılabilir ve izlenebilir hale getirmek için bir Dijital Nesne Tanımlayıcı (DOI) atanır.
Bekleme süresi yok — Yayınla düğmesine basar basmaz yüklemeler çevrimiçi olarak kullanıma sunulur ve DOI'niz dakikalar içinde kaydedilir.
Açık veya kapalı — Kısıtlı erişim modu aracılığıyla örneğin anonimleştirilmiş klinik araştırma verilerini yalnızca tıp uzmanlarıyla paylaşılabilir.
Sürümleme — Sürüm oluşturma özelliği ile veri kümenizi kolayca güncelleyebilirsiniz
Kullanım istatistikleri — Tüm yüklemeler, standartlara uygun kullanım istatistikleri ile görüntülenebilir.

TubitakUlakbim tweetleri