Purpose – The purpose of this paper is to find out intentions of business graduating students regarding launching their own business, and their perception regarding issues and constraints entrepreneur would encounter after entering into entrepreneurial activities. In addition, it focusses to provide a general understanding regarding entrepreneurship. The study also argues unfriendly policies and environment for entrepreneurship slows down poverty reduction and economic development. Design/methodology/approach – For this research, data were collected through structured questionnaire. Population of this study comprised of all the MBA final semester students of Pakistan. Statistical techniques were used for analysis. Findings – Research shows that most MBA graduating students actually plan to launch their own business, but perception about different issues and constraints refrain them to enter into the entrepreneurial field. The study also shows that policies of government and country’s environment effect entrepreneurship which further effects poverty reduction and economic development. Originality/value – Different constraints are highlighted in the study due to which business graduates hesitate to become an entrepreneur, plus importance level of each constraint is also calculated in the study.

Graphene oxide–silver (Ag–GO) nanocomposite has emerged as a vital antibacterial agent very recently. In this work, we report a facile one step route of Ag–GO nanocomposite formation excluding the aid of surfactants and reductants and was successfully applied to negative Escherichia Coli (E coli) to investigate antibacterial activity by varying doze concentration. The successful formation of Ag–GO nanocomposite via facile one step route was confirmed using Fourier transform infrared spectroscopy (FTIR) and Raman Spectroscopy. The absorption spectra (peak ~ 300 nm) for GO and the (peak ~ 420 nm) for silver nanoparticles were observed. XRD study confirmed the formation of Ag–GO nanocomposite while atomic force microscopy (AFM) showed crumbled GO sheets decorated with Ag nanoparticles. It was observed that the functional groups of GO facilitated the binding of Ag nanoparticles to GO network and enhanced the antibacterial activity of the nanocomposite.

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Internet of Things (IoT) has revolutionized the world in the last decade. Today millions of devices are connected to each other utilizing IoT technology in one way or the other. With the significant growth in IoT devices, the provision of IoT security is imperative. Routing protocol for low power and lossy networks (RPL) is a network layer protocol, specially designed for routing in IoT devices. RPL protocol faces many attacks such as selective forwarding attacks, blackhole attacks, sybil attacks, wormhole attacks, and sinkhole attacks. All these attacks pose great threats to IoT networks and can substantially affect the performance of the network. In this work, a comprehensive review of internal attacks on the network layer is presented. Specifically, we focus on the literature that considers presenting solutions for the detection and prevention of sinkhole attacks. We reviewed the state-of-the-art works and different performance parameters like energy consumption, scalability, threshold value, packet delivery ratio, and throughput. Moreover, we also present a detailed analysis of machine learning-based algorithms and techniques proposed for the security of RPL protocol against internal attacks.