Eklentiler kullanarak veri kaybını engelleme

06.03.2018 tarihli ve 30352 sayılı Resmi Gazetede yayımlanan “Yükseköğretim Kanunu İle Bazı Kanun Ve Kanun Hükmünde Kararnamelerde Değişiklik Yapılması Hakkında Kanun” ile 18.06.2018 tarihli “Lisansüstü Tezlerin Elektronik Ortamda Toplanması, Düzenlenmesi ve Erişime Açılmasına İlişkin Yönerge” gereğince tam metin erişime açılmıştır.Bir çok organizasyon için çalışanlar tarafından farkında olmayarak veri sızıntısı oluşması büyük bir problem oluşturmaktadır. Organizasyonlar veri gizliliğini sağlamak için gün geçtikçe veri kaybı/sızıntısı önleme (DLP-Data Loss/Leakage Prevention) çözümlerini daha fazla kullanmaktadır. Şu anda, DLP çözümleri gizli verileri ayırt etmekte zorluk çekmektedir. Ayrıca, kullanıcıların gizli verileri gizli olmayan verilerden ayırt etmelerine çok az izin vermektedir. Üstelik, organizasyon çalışanlarının çalışma alanları haricinde çalışmalarına sınırlar konulmaktadır. Bu sorunu çözmek için, veri sahiplerinin dosyanın tüm yaşam döngüsü boyunca (oluşturma, düzenleme, vb.) dosyaların gizliliğini sınıflandırarak tanımlayabilecekleri bir DLP Eklentileri modeli sunmak önemlidir. Bu model, organizyon içinde çalışanlar tarafından sınıflandırılmış dosyaların kazayla sızmasını önlemek için veri şifreleme ve erişim kontrolü gibi güvenlik önlemlerini kullanır. Bu yaklaşım, doğru kullanıcının organizasyon içindeki veya dışındaki güvenlik erişim ayrıcalığına göre doğru dosyalara erişebileceğini garanti eder. Yani sınıflandırılmış dosyaları her zaman şifrelenmiş olarak tutmak, bu dosyaları; dinlenme, hareket halinde veya kullanırken koruyacaktır. DLP-Eklentisi, kullanıcılara dosyaların şifrelenmesi veya şifresini çözmek için herhangi bir ek prosedür eklemek zorunluluğu olmadan dosyalara doğru bir şekilde erişebilmelerini garanti edmektedir. Kullanıcının normalde olduğu gibi tek yapması gereken dosyayı açmak ve kapatmaktır. DPL-Eklentileri ile veri kaybı önleme çözümünün uygulanmasına yönelik bu yaklaşım, verilerinin korunması için Microsoft Office, pdf okuyucular, metin editörü, medya oynatıcılar ve posta uygulamaları gibi yaygın ofis uygulamalarına rahatlıkla eklenebilir. Bu amaçla, DLPEklentileri modellerinden bir tanesini Microsoft offıce Word kelime işlemci uygulamasında gerçekleştirilmiştir.Inadvertent Data leakage by insiders is considered a serious problem to many organizations. Organizations are increasingly implementing Data Leakage/Loss Prevention solutions also know as (DLP), to protect the confidentiality of their data. Currently, DLP solutions have difficulties to identify confidential data as well lack the ability to allow users to distinguish confidential from non-confidential data. Moreover, they are limited to work outside the organizations. In order to solve this problem, it is important to introduce a DLP-Plugins model where the data owners can identify the privacy of the files during their entire lifecycle (creating, editing, etc.) by classifying them. This model uses security measures such as data encryption and access control to prevent accidental leakage of the classified files by the insiders. This approach will guarantee that the right user will have access to the correct files according to their security access privilege inside or outside the organization. By always keeping classified files encrypted this will protect them all the time and everywhere i.e. at rest, in motion, and in use. The DLP-Plugin shall guarantee the usability for the users, so that they will be able to have the right access to the files, just in case they don't need to enforce any additional procedures to encrypt or decrypt the file. All that will be required is to simply open and close the file as they do normally. This approach to implementing data shrinkage and loss prevention solution with DPL-Plugins, can be added into the legacy applications like Microsoft Office, pdf readers, text editor, media players, and mail applications to protect their data. As an example to this DLP-Plugins model, we have built a DLP-Plugin for Microsoft offıce Word

The Performance Comparison of Lightweight Encryption Algorithms

Son yıllarda özellikle internetin hayatımızın her alanına girmesi ve nesnelerin interneti (IoT) platformundaki gelişmeler ile birlikte güvenlik daha kritik bir duruma gelmiştir. Bu platformlarda kullanılacak olan güvenlik algoritma tasarımları üzerinde çalışmalar günden güne artış göstermektedir. Bu algoritmaların güvenli bir şekilde kullanılabilmesi için yeterli güvenlik seviyelerine sahip olmaları gerekmektedir. Bu çalışmada, hafif sıklet kriptoloji algoritmalarının performans ve güvenlik analizlerini gerçekleştirmek için farklı resim dosyaları üzerinde şifreleme işlemleri yapılmıştır. Güvenlik ve performans analizlerinde şifreleme işlemlerine ait histogram, korelasyon, NPCR (Number of Pixels Change Rate) ve UACI (Unified Average Changing Intensity), entropi, şifreleme kalite ve zaman analizleri gerçekleştirilmiştir. Elde edilen sonuçlar kullanılarak algoritmaların güvenlik ve performans seviyeleri hakkında değerlendirme sunulmuştur

A Serendipity-Oriented Personalized Trip Recommendation Model

Personalized trip recommendation attempts to recommend a sequence of Points of Interest (POIs) to a user. Compared with a single POI recommendation, the POIs sequence recommendation is challenging. There are only a couple of studies focusing on POIs sequence recommendations. It is a challenge to generate a reliable sequence of POIs. The two consecutive POIs should not be similar or from the same category. In developing the sequence of POIs, it is necessary to consider the categories of consecutive POIs. The user with no recorded history is also a challenge to address in trip recommendations. Another problem is that recommending the exact and accurate location makes the users bored. Looking at the same kind of POIs, again and again, is sometimes irritating and tedious. To address these issues in recommendation lies in searching for the sequential, relevant, novel, and unexpected (with high satisfaction) Points of Interest (POIs) to plan a personalized trip. To generate sequential POIs, we will consider POI similarity and category differences among consecutive POIs. We will use serendipity in our trip recommendation. To deal with the challenges of discovering and evaluating user satisfaction, we proposed a Serendipity-Oriented Personalized Trip Recommendation (SOTR). A compelling recommendation algorithm should not just prescribe what we are probably going to appreciate but additionally recommend random yet objective elements to assist with keeping an open window to different worlds and discoveries. We evaluated our algorithm using information acquired from a real-life dataset and user travel histories extracted from a Foursquare dataset. It has been observationally confirmed that serendipity impacts and increases user satisfaction and social goals. Based on that, SOTR recommends a trip with high user satisfaction to maximize user experience. We show that our algorithm outperforms various recommendation methods by satisfying user interests in the trip

EFFECT OF CATHA EDULIS (KHAT) EXTRACT ON COLOR STABILITY OF ACRYLIC RESIN DENTURE TEETH: AN IN-VITRO STUDY

Background and aim: Long-term denture tooth color stability for patients is an important criterion in choosing the types of dental materials to use as one of the main concerns in treatment. Discoloration of denture teeth may result in patient dissatisfaction and an additional expense for their replacement. In Yemen, khat (Catha Edulis) chewing habit may affect the color of acrylic denture teeth. The aim of this study was to assess the effect of khat extract on color stability of reinforced acrylic resin denture teeth. Materials and Methods: Experimental design carried to 3 brands of reinforced acrylic resin teeth from three manufacturers, Vitapan, FX-Anterior and Shanghai-SND were evaluated 40 specimens (maxillary central incisors) of each brand were selected systematically and grouped into A, B and C respectively. All samples were stored in distilled water (DW) at 37 °C for 24 hours after which baseline colorimetric measurements were recorded by colorimeter. All the specimens were immersed for 24 hours daily and kept in an incubator at 37°C for 30 days. The KH was changed every 24 hours. Colorimeter was used for color change testing of each specimen after 10, 20 and 30 days on CIE L* a* b*. Then the collected data was analyzed using SPSS version 23. Results: The results of this study shows that there was a significant effect of KH on acrylic teeth (p<0.001). Also, a significant interaction between the three brands acrylic teeth and KH was found (p<0.05). The effect of time on acrylic teeth color stability was statistically significant (p<0.05). The brands teeth specimens at 10, 20 and 30 days in KH revealed more significantly color change than DW (p<0.05). Conclusions: The khat homogenate (KH) causes discoloration on the 3 brands of reinforced acrylic teeth and the discoloration increases with the passage of time. The change of discoloration is acceptable clinically except in SND teeth. Vitapin teeth has more color stable compared to FX teeth and SND teeth.                         Peer Review History: Received: 12 February 2023; Revised: 13 March; Accepted: 25 April 2023, Available online: 15 May 2023 Academic Editor: Prof. Dr. Gorkem Dulger, Duzce University, Turkey, [email protected] Received file:                             Reviewer's Comments: Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 7.0/10 Reviewers: Dr. Khaled A AL-Haddad,Orthodontics, Pedodontics and Prevention Department Faculty of Dentistry, Sana'a University, Yemen, [email protected] Dr.  Masoomeh S Ghahfarokhi, University of Benin, Nigeria, [email protected]

PREVALENCE OF SIGNS OF TEMPOROMANDIBULAR DISORDERS IN HEALTHY ASYMPTOMATIC COMPLETELY EDENTULOUS INDIVIDUALS AND THE EFFECT OF DENTURE ON TEMPOROMANDIBULAR DISORDERS

Background and objectives: Temporomandibular disorders (TMD) are a multi-factorial issue characterized by signs and symptoms that eventually restrict or may impede an edentulous patient’s physiological activity. The current study aimed to ascertain the prevalence of TMD among edentulous individuals, and their association with risk factors such as gender, age, educational level, habitual Khat chewing, economical status, duration of edentulousness, the age, and vertical dimension of occlusion (OVD) of the present dentures. Materials and Methods: This study involved a thorough evaluation of 400 edentulous Yemeni patients who were undergoing prosthetic treatment at the Faculty of Dentistry Sana'a University and the University of Sciences and Technology, 114 with denture and 286 without denture. This evaluation of TMD signs and symptoms was performed using the Helkimo index. The outcomes were analyzed by correlating the research variables and the prevalence of signs and symptoms of TMD using chi-squared tests. Results: The study’s findings showed that signs and symptoms of TMD were 82.5% and 55.3% among complete denture wearers and 80.4% and 49.0% among non-denture wearers, respectively. Furthermore, the most frequent sign and symptom was the joint sounds. This study revealed a statistically significant association between the prevalence of TMD symptoms and patient gender and between TMD signs and symptoms and OVD in denture wearers. Conclusion: The current study supports the need to evaluate the potential impact of TMD on completely edentulous individuals and to take caution while receiving dental therapy and prosthetic rehabilitation.                        Peer Review History: Received: 6 January 2023; Revised: 11 February; Accepted: 5 March 2023, Available online: 15 March 2023 Academic Editor: Dr. DANIYAN Oluwatoyin Michael, Obafemi Awolowo University, ILE-IFE, Nigeria, [email protected] Received file:                             Reviewer's Comments: Average Peer review marks at initial stage: 5.5/10 Average Peer review marks at publication stage: 7.0/10 Reviewers: Dr. Alfonso Alexander Aguileral, University of Veracruz,  Mexico, [email protected] Dr. Bilge Ahsen KARA, Ankara Gazi Mustafa Kemal Hospital, Turkey, [email protected] Similar Articles: HISTOLOGIC AND RADIOGRAPHIC STUDY OF PATHOLOGIC CHANGE IN COMPLETE IMPACTED THIRD MOLARS DENTAL FOLLICLE