863 research outputs found

    Analysis of Technical Approaches (ATA)

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    Studies & Prototyping This JSB ATA Study Paper is the author's work product and does not reflec

    Let me Join Two Worlds! Analyzing the Integration of Web and Native Technologies in Hybrid Mobile Apps

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    We can notice that security problems of inappropriate integration of native and web technologies in hybrid mobile applications (apps) have been covered in the related state-of-the-art research. However, analyzing hybrid mobile apps' unique behaviors has been seldom addressed. In this paper, we explore the influence of native and web technologies integration in hybrid mobile apps on the generated profile of mobile applications. Specifically, we analyze the type of Security Sensitive APIs (SS-APIs) exposed to web content and identify the corresponding usage patterns by systematically tracking function-call-graphs of a large number of hybrid and native mobile apps. Our investigations indicate that the generated profiles for hybrid and native mobile apps are considerably different. Using our proposed tool, called Hybrid-scanner, for tracking and analyzing internal behaviors of hybrid mobile apps, we show that there is more trace of API calling for triggering a specific SS-API in a hybrid mobile app in comparison with Android native mobile apps. In addition, we have found that almost 40% of SS-APIs in hybrid mobile apps are invoked by third-party libraries, e.g. advertisement libraries. This knowledge, however, is crucial for designing appropriate malware detection or vulnerability mitigation strategies. Based on our results, we discuss two main approaches in Android malware analysis field and enumerate some suggestions which should be considered in order to successfully detect malicious behaviors in such new type of apps

    GOPA: Geometrical Optics Positioning Algorithm

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    In this paper, we propose an accurate visible light indoor localization system for a smartphone using the commercial light-emitting diode (LED) panels which are used primarily for lighting. Each of designed lighting panel contains a space-colorcoded identifier, a matrix with a unique pattern of spatially separated colored LEDs, for labeling different positioning cells while the lighting color is kept white by balancing the number of different sets of colored LEDs. The advantage of this idea is that we do not use the time-frequency domain of visible light communication (VLC) networks resources for positioning signaling. Our positioning technique called geometrical optics positioning algorithm (GOPA) is an angle of arrival (AOA)-based geometrical algorithm on smartphones to locate the device. The front-facing camera of the smartphone is used at the receiver side to capture the image. Experimental results show robust two-dimensional (2-D) and three-dimensional (3-D) positioning. The experimental mean positioning error for 2-D positioning is 0.54 cm, in case of ignoring the tilt. The experimental mean positioning errors for 3-D positioning are respectively 1.24 cm, and 1.85 cm for ideal non-tilted and non-oriented, and non-tilted but orientated scenarios

    Video 2 laser speckle contrast perfusion imaging of a psoriasis lesion in handheld mode

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    Laser speckle contrast perfusion imaging of a psoriasis lesion in handheld mode.</p

    Uzbek author O'lmas Umarbekov's forensic novel 'Ådam Bo'lish Qiyin' (Review-translation writing-dictionary-book letter text)

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    Sosyal Bilimler Enstitüsü, Türk Dili ve Edebiyatı Ana Bilim DalıTürk dilinin Doğu Türkçesi (Karluk) grubunda yer alan Özbek Türkçesi, 11. ve 12. yüzyıllarda kullanılan Karahanlı Türkçesinin, 13. ve 14. yüzyıllarda kullanılan Harezm Türkçesinin, daha sonra da Tarihî Çağatay Türkçesinin çağdaş devamı olarak gelişmiş bir Türk dilidir. Bu çalışmada Özbek edebiyatının önemli yazarlarından biri olan O'lmas Umarbekov'un "Ådam Bo'liş Qiyin" adlı eserinin dil özellikleri incelenmiştir. Özbek yazar O'lmas Umarbekov'un "Ådam Bo'lish Qiyin" adlı romanı dört bölüm şeklinde incelenerek çalışmaya konu olmuştur. Çalışmanın birinci bölümünde; çalışmaya konu olan eser, eserin özellikleri ve önemi, yazar, çalışmanın amacı ve önemi, yöntem, inceleme, Özbek Türkçesi hakkında bilgilere yer verilmiştir. Çalışmanın ikinci bölümünde; O'lmas Umarbekov'un "Ådam Bo'lish Qiyin" adlı romanı, seslik özellikler ve biçim özellikleri olmak üzere iki başlık altında incelenmiştir. Çalışmanın üçüncü bölümünü; çeviri yazılı metin ve Kiril harfli metin oluşturmaktadır. Dördüncü bölümde ise; metinde kullanılan kelimelerden oluşturulmuş sözlük bölümü ve ekler dizini yer almaktadır.Uzbek Turkish, which is in the Eastern Turkish (Karluk) group of the Turkish language, is a developed Turkish language as a contemporary continuation of Karahanli Turkish used in the 11th and 12th centuries, Harezm Turkish used in the 13th and 14th centuries, and later Historical Cagatay Turkish. In this study, the language characteristics of O'lmas Umarbekov's "Ådam Bo'lyş Qiyin", one of the important authors of Uzbek literature, were examined. Uzbek author O'lmas Umarbekov's novel "Ådam Bo'lish Qiyin" was reviewed in four chapters and was the subject of study. In the first part of the study; information about the work subject to the study, the characteristics and importance of the work, the author, the purpose and importance of the study, method, examination, Uzbek Turkish. In the second part of the study; O'lmas Umarbekov's novel "Ådam Bo'lish Qiyin" is reviewed under two titles: vocal features and form features. The third part of the study; translation is written text and cyrillic text. In the fourth part; the dictionary section and attachments index created from the words used in the text

    Video 1 laser speckle contrast perfusion imaging of a psoriasis lesion in mounted mode

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    Laser speckle contrast perfusion imaging of a psoriasis lesion in mounted mode.</p

    Alma Ata Declaration

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    Horder evaluates the current state of health care in Great Britain in light of the Declaration of Alma Ata, which called upon all countries to formulate national policies to initiate and maintain primary health care as the key to achieving "health for all" by the year 2000. While Britain has developed a good system of primary medical care, primary health care, with its emphasis on preventive medicine and health promotion, is in a state of flux. The author concludes by outlining the challenges this situation poses to general practitioners and other health personnel, district and regional health authorities, professional organizations, and the government. (KIE abstract

    Handheld laser speckle contrast perfusion imaging

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    Laser speckle contrast imaging (LSCI) is a noninvasive method for evaluation of microcirculatory blood flow. LSCI has a broad medical application such as reconstructive surgery, burns and dermatology. Commercially available LSCI systems are bulky and operate in mounted modality. The former limits their application in operation theatres and other clinical contexts with space limitation while the latter brings inconvenience for both patients and clinicians. Such limitations give rise to develop handheld and compact devices for LSCI. As opposed to all the benefits a handheld LSCI system offers, it can lead to unreliable measurement results due to the involuntarily movements applied during a measurement either by the patient or by the operator. This PhD research was mainly outlined around addressing the challenge of movement artefacts in handheld laser speckle contrast perfusion imaging

    Using author tri-citation analysis to map knowledge domains in knowledge representations

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    Purpose Previous commonly used author co-citation analysis (ACA) methods have limited the ability to deal with accidental co-citation in constructing a raw co-citation matrix. Therefore, the purpose of this paper is to propose a new method, called author tri-citation analysis (ATA), to better map knowledge domains and depict scientific intellectual structures. Design/methodology/approach Different from the previous method of using ACA that captures author co-citation relationships, the ATA method seeks tri-citation relationships among authors. Compared with ACA, ATA can ignore some accidental co-citation relationships between authors and can improve the accuracy of mapping knowledge domains. Findings Although ATA does not mine more sub-fields than ACA does, the results of the empirical studies show that ATA, the newly proposed method, performs better in knowledge domain maps based on publications in the field of computer science. Research limitations/implications The definition of ATA in this article is simple and still insufficiently informative. Many other pieces of information can be involved; for example, all authors’ information, authors’ sequence in the author list, reference published time and similar. These can be enhanced in future studies. Practical implications This research will enrich the methods of mapping knowledge domains due to its new perspective. Social implications Knowledge domain mapping is important to understand a discipline, and this research provides more potential methods for this, which benefits the performance of the maps. Originality/value ATA can provide a methodological awareness for mapping knowledge domains. This value lies in not only a tri-citation perspective, but also author bibliographic tripling and author tri-operation perspectives (“tri-” perspectives). </jats:sec
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