151 research outputs found
Utilization of transgenic maize plants for functional analysis of a histone promoter and host-geminivirus interactions
Evaluation of IT Security Perception
Information Technology security is an important issue that companies ensure with using technical solutions most of the time. However, protection cannot be completely beneficial unless human factor is considered carefully. Technical solutions are successful together with non-technical solutions, such as security education/training programs which target to users. These activities are planned to improve knowledge of users and improve their secure behavior through increasing information security awareness about IT security. In this study IT security perception, awareness and behavior are evaluated together so as to understand how employees perceive IT security according to their professions from the point of IT security literacy. Furthermore, results are compared with global information security surveys to expand the understanding
Supplementary First-Order All-Pass Filters with Two Grounded Passive Elements Using FDCCII
In this study, two novel first-order all-pass filters are proposed using only one grounded resistor and one grounded capacitor along with a fully differential current conveyor (FDCCII). There is no element-matching restriction. The presented all-pass filter circuits can be made electronically tunable due to the electronic resistors. Furthermore, the presented circuits enjoy high-input impedance for easy cascadability. The theoretical results are verified with SPICE simulations
The war in Ukraine: Why knowing the country of origin of tech components is vital
The war in Ukraine has highlighted the significance of knowing the Country of Origin (COO) of technology product components. A single Iranian drone was found to contain parts made by more than a dozen US and western companies, and digital products can contain hardware components, software elements, and embedded systems and data from a range of countries and computing environments. How can this conundrum best be addressed to support national security? How can the end-consumer be better informed about the origin of digital products he/she is buying? And what are the implications for sustainability and the recyclability of these products
Cybersecurity and Country of Origin: Towards a New Framework for Assessing Digital Product Domesticity
Recent events concerning the Kaspersky anti-virus software in the UK and the Android operating system in the US have highlighted the significance of the domesticity of digital products for national cybersecurity, and the importance of establishing the origin of digital products has been further brought into focus by the war in Ukraine and China’s military activities around Taiwan. Digital products can contain hardware components, software elements, embedded systems, and data, and determining the country of origin (COO) in these circumstances is problematic. The aim of this research, and its main contribution, is to provide an operational framework for the application of the COO concept to address this problem. Using an inductive research methodology based on semi-structured interviews and an online survey, a 19-parameter framework for assessing the COO of digital products is developed and then applied to the case example of a mobile phone import in Turkey. This article concludes that new processes and policies are urgently required to enhance the cyber and information security for digital products, aid domestic digital technology production, and support the transition to recyclable technologies. Such developments are of significance not only for western nations concerned with data and security issues, but also for developing world countries trying to develop their own domestic digital product manufacturing capabilities. This is also of relevance to the computer end-user, who would benefit from greater clarity on the origin of digital products ahead of a purchase decision
BİYOMETRİK DOĞRULAMA TABANLI SEÇİM SİSTEMİ
Geleneksel yöntemler kullanılarak sandık başında yapılan seçimler, uzun hazırlık süreçleri, hatalı veya sahte oy kullanımı, oy sayımında ortaya çıkabilecek hatalar, uzun sayım süreçleri ve maliyetlerinin yüksek olması gibi olumsuzluklar içermektedir. Ülke ekonomisini ve politikasını doğrudan etkileyen bu olumsuz durumları ortadan kaldırmak için mevcut sistemi elektronik ortama taşımak artık bir zorunluluktur. Bu çalışmada mevcut seçim sistemimiz incelenmiş ve aynı işlevleri daha etkin bir şekilde yerine getiren bir biyometrik seçim sistemi geliştirilmiş ve uygulanmıştır. Ayrıca hedeflediğimiz e-seçim sisteminde güvenilirliği en yüksek seviyeye çıkarmak için biyometrik sistemler incelenmiş ve parmak izi okuyucusu kullanılmıştır. Böylece çalışma, e-seçim sistemi ile birlikte bir biyometrik sistem uygulanarak da daha zengin ve daha etkin bir hale getirilmiştir
VARIATION OF DISTRIBUTION COEFFICIENT OF CAFFEINE BETWEEN WATER AND ETHYL ACETATE/CHLOROFORM MIXTURE DEPENDING ON THE MEDIUM ACIDITY
Kafein, ülkemizde önemli bir tarımsal ürün olan ve büyük miktarlarda üretilen çayın enönemli bileşenidir. Kafein, çok yaygın ve farklı alanlardaki kullanımı nedeniyle büyük ticarideğer taşımaktadır. Bu nedenle, ekonomik üretim proseslerinin geliştirilmesi son dereceönemlidir.Bu çalışmanın amacı, kafeinin su ve etil asetat/kloroform karışımı arasındaki dağılmakatsayılarının pH\'a bağlı olarak değişiminin incelenmesidir. Çalışmada organik çözücükarışımı etil asetat/kloroformun beş farklı oranı kullanılmıştır. Bu oranlar %20, %40, %50,%60 ve %80 kloroform içerecek şekilde seçilmiştir. Ayrıca dağılma katsayısının pH\'yabağımlılığının incelenmesi için denemeler beş farklı pH\'da yapılmıştır. Bu pH değerleri 5.65,5.90, 6.25, 7.10 ve 7.90\'dır. Deneysel çalışmada hazırlanan % 1\'lik (hacimsel) kafeinçözeltisinden belirli miktar alınarak çözücü karışımı ile ekstrakt edilmiş ve iyodometriyöntemiyle kafein analizi yapılmıştır. Yapılan deneysel çalışmalar sonucunda, pH değerininyükselmesiyle dağılma katsayısının arttığı tespit edilmiştir.Caffeine is a main component of tea, which is an important agricultural product in ourcountry. It has a great economical value because of its different and extensive industrialapplications.The aim of this study is to investigate the variation of the distribution coefficients ofcaffeine between water and ethyl acetate/chloroform mixture depending on pH. Ethylacetate/chloroform mixture was used in five different ratios. These ratios were selected as tocontain 20%, 40%, 50%, 60% and 80% chloroform. Also five different pH were selected toinvestigate the distribution coefficient depending on pH. These pH values were 5.65, 5.90,6.25, 7.10 and 7.90.In experimental investigations, 1% aqueous solution of caffeine was used. Caffeinecontent was analysed by means of Iodometry method.It was seen that the distribution coefficient of caffeine between water and solvent mixturewas increased with increasing pH
IT Risk Management: Towards a System for Enhancing Objectivity in Asset Valuation that Engenders a Security Culture
In today’s technology-centric business environment, where organizations encounter numerous cyber threats, effective IT risk management is crucial. An objective risk assessment— based on information relating to business requirements, human elements, and the security culture within an organisation — can provide a sound basis for informed decision making, effective risk prioritisation, and the implementation of suitable security measures. This paper focuses on asset valuation, supply chain risk, and enhanced objectivity — via a “segregation of duties” approach — to extend and apply the capabilities of an established security culture framework. The resultant system design aims at mitigating subjectivity in IT risk assessments, thereby diminishing personal biases and presumptions to provide a more transparent and accurate understanding of the real risks involved. Survey responses from 16 practitioners working in the private and public sectors confirmed the validity of the approach but suggest it may be more workable in larger organisations where resources allow dedicated risk professionals to operate. This research contributes to the literature on IT and cyber risk management and provides new perspectives on the need to improve objectivity in asset valuation and risk assessment
VARIATION OF DISTRIBUTION COEFFICIENT OF CAFFEINE BETWEEN WATER AND ETHYL ACETATE/CHLOROFORM MIXTURE DEPENDING ON THE MEDIUM ACIDITY
Kafein, ülkemizde önemli bir tarımsal ürün olan ve büyük miktarlarda üretilen çayın enönemli bileşenidir. Kafein, çok yaygın ve farklı alanlardaki kullanımı nedeniyle büyük ticarideğer taşımaktadır. Bu nedenle, ekonomik üretim proseslerinin geliştirilmesi son dereceönemlidir.Bu çalışmanın amacı, kafeinin su ve etil asetat/kloroform karışımı arasındaki dağılmakatsayılarının pH\'a bağlı olarak değişiminin incelenmesidir. Çalışmada organik çözücükarışımı etil asetat/kloroformun beş farklı oranı kullanılmıştır. Bu oranlar %20, %40, %50,%60 ve %80 kloroform içerecek şekilde seçilmiştir. Ayrıca dağılma katsayısının pH\'yabağımlılığının incelenmesi için denemeler beş farklı pH\'da yapılmıştır. Bu pH değerleri 5.65,5.90, 6.25, 7.10 ve 7.90\'dır. Deneysel çalışmada hazırlanan % 1\'lik (hacimsel) kafeinçözeltisinden belirli miktar alınarak çözücü karışımı ile ekstrakt edilmiş ve iyodometriyöntemiyle kafein analizi yapılmıştır. Yapılan deneysel çalışmalar sonucunda, pH değerininyükselmesiyle dağılma katsayısının arttığı tespit edilmiştir.Caffeine is a main component of tea, which is an important agricultural product in ourcountry. It has a great economical value because of its different and extensive industrialapplications.The aim of this study is to investigate the variation of the distribution coefficients ofcaffeine between water and ethyl acetate/chloroform mixture depending on pH. Ethylacetate/chloroform mixture was used in five different ratios. These ratios were selected as tocontain 20%, 40%, 50%, 60% and 80% chloroform. Also five different pH were selected toinvestigate the distribution coefficient depending on pH. These pH values were 5.65, 5.90,6.25, 7.10 and 7.90.In experimental investigations, 1% aqueous solution of caffeine was used. Caffeinecontent was analysed by means of Iodometry method.It was seen that the distribution coefficient of caffeine between water and solvent mixturewas increased with increasing pH
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