One of the most important factors to be considered when developing an application for a Wireless Sensor Network (WSN) is its power consumption. Intelligent Power Management (IPM) for a WSN is crucial in maximising the operational longevity. An established regime for achieving this is through the opportunistic hibernation of redundant nodes. Redundancy, however, has various definitions within th...

Although the transactions on the Bitcoin blockchain have the main purpose of recording currency transfers, they can also carry a few bytes of metadata. A sequence of transaction metadata forms a subchain of the Bitcoin blockchain, and it can be used to store a tamper-proof execution trace of a smart contract. Except for the trivial case of contracts which admit any trace, in general there may e...

The purpose of this study was to assess the success learning make industrial clothes in vocational high schools. This uses Countanance Stake evaluation model. In evaluating we compare programs that are evaluated based on established standards. With two concepts, namely contingency and congruence. objectives for Industrial Clothing Making were planning, implementation, outcomes. Then data collec...

Cryptocurrencies like Bitcoin have proven to be a phenomenal success. Bitcoin-like systems use proofof-work mechanism which is therefore considered as 1-hop blockchain, and their security holds if the majority of the computing power is under the control of honest players. However, this assumption has been seriously challenged recently and Bitcoin-like systems will fail when this assumption is b...

One important role of corporate governance is to ensure that real options are exercised in the interest of the shareholders. This paper explores whether and how this can be achieved in start-up firms by the venture capitalist retaining a post-IPO equity stake. Our setting is a firm whose future prospects are uncertain and strategic choices remain to be made. The payoff to entrepreneur and share...

The relationship of in-school and out-of-school factors with academic achievement has been subject to long-term discussion in the context educational equality. In Turkey, gap between schools is relatively high, therefore, examining related crucial mitigation these differences. Related studies often utilize international large-scale assessments yield results for particular school types. Therefor...

We design and implement TwinsCoin, the €rst cryptocurrency based on a provably secure and scalable public blockchain design using both proof-of-work and proof-of-stake mechanisms. Di‚erent from the proof-ofwork based Bitcoin, our construction uses two types of resources, computing power and coins (i.e., stake). Œe blockchain in our system is more robust than that in a pure proof-of-work based s...

Context: In requirements engineering, there will be many different stake holders. Often the requirements engineer has to find a set of requirements that reflect the needs of several different stake holders, while remaining within budget. Objective: This paper introduces an optimisation-based approach to the automated analysis of requirements assignments when multiple stake holders are to be sat...