Jejak Rasul: membedah kebijakan dan strategi politik dan perang

616 hlm. ; 21 cm

??????? ?????? ???????? ??????? ?? ????? ????????

247 hal.; 24 cm

A Proposed Framework for Secure Data Storage in a Big Data Environment Based on Blockchain and Mobile Agent

The sum of Big Data generated from different sources is increasing significantly with each passing day to extent that it is becoming challenging for traditional storage methods to store this massive amount of data. For this reason, most organizations have resolved to use third-party cloud storage to store data. Cloud storage has advanced in recent times, but it still faces numerous challenges with regard to security and privacy. This paper discusses Big Data security and privacy challenges and the minimum requirements that must be provided by future solutions. The main objective of this paper is to propose a new technical framework to control and manage Big Data security and privacy risks. A design science research methodology is used to carry out this project. The proposed framework takes advantage of Blockchain technology to provide secure storage of Big Data by managing its metadata and policies and eliminating external parties to maintain data security and privacy. Additionally, it uses mobile agent technology to take advantage of the benefits related to system performance in general. We present a prototype implementation for our proposed framework using the Ethereum Blockchain in a real data storage scenario. The empirical results and framework evaluation show that our proposed framework provides an effective solution for secure data storage in a Big Data environment

Cross Sectional Survey of Live Bird Markets and Zoo Birds for Circulating Influenza Subtypes in Pakistan

In Pakistan, avian influenza surveillance has been both active and passive. Here, we present the results of a survey effort focusing solely on the live bird markets and wild bird species from different zoos and national parks to understand the impact of live bird markets on the spread of highly pathogenic avian influenza viruses. A cross sectional survey was conducted from Jan-Dec 2011 to identify and isolate the circulating avian influenza virus subtypes in live bird markets and wild birds from different localities in and around Islamabad Capital Territory. Swabs, tracheal tissues and sera samples were collected, screened and diagnosed by hemagglutination inhibition assay and RT-PCR. The highest seropositivity was recorded for H9 (100%) followed by H5 (89.4%) and H7 (72.3%). All 27 isolates were of the low pathogenic H9N2 subtypes and no viruses could be successfully isolated of subtype H5N1 or H7N7. The higher prevalence of H5N1 (89.4%) observed in the present study was an alarming threat; therefore, we suggested immediate control strategies against this emerging risk of H5N1 for human in live bird markets in Pakistan. The factors unveiled in this study will help in understanding the lapses in controlling persistent outbreaks of avian influenza in country.CC BY-NC 4.0</p

African BIM Report 2020

While it may seem like the adoption of Building Information Modelling (BIM) across Africa is slow-paced, the increasing advocacy efforts from various stakeholders is now resulting in a widespread drive for implementation and deployment. Coupled with the ongoing disruption by the global COVID-19 pandemic, there is now a very high degree of the utilization of digital technologies by construction professionals. As a first of its kind across the continent, the African BIM Report was conceived to provide a continuous review of the state of implementation of BIM by the industry. The report will progressively highlight exceptional projects, industry leaders and research experts across Africa. A pan-African survey will integrate the opinion from a wider range of professionals. As a dynamic, future-focused, and thriving community, BIM Africa is well-positioned to champion the digital transformation of the built industry across Africa. Our approach covers broad industry education, extensive research, professional development and certifications, quality networking and the formulation of locally adapted standards. Our Research and Development Committee comprises of a thriving portfolio of internationally certified and brilliant academic researchers of African descent; the coming together of bright minds to impact their motherland