Requirements engineering (RE) is often seen as an essential facet in software development. It is a vital process before each project starts. In the context of systems engineering, an understanding and application of systems theory and practice is also relevant to RE. The contexts in which RE takes place habitually involve human activities. Therefore, RE needs to be sensitive to how people perce...

We re-examine the evidence for a 62 million year (Myr) periodicity in biodiversity throughout the Phanerozoic history of animal life reported by, as well as related questions of periodicity in origination and extinction. We find that the signal is robust against variations in methods of analysis, and is based on fluctuations in the Paleozoic and a substantial part of the Mesozoic. Examination o...

Background & Aims of the Study: Work-related musculoskeletal disorders (WRMSDs) are considered as major occupational health problem in the developed and developing countries. The study was carried to the Ergonomic evaluation of working postures and analysis of the relation between physical activities with WRMSDs among men barbers in Karaj, Iran in 2016. Materials and Methods: ...

Adolescence is a period of increased risk experience and ever more often these occur online. The current study aims to investigate whether adolescents’ online and offline risk experiences are driven by the same general propensity to risks. Data from a representative study of N = 19,406 (50% girls) internet-using 11-16 year olds (M = 13.54, SD = 1.68) youth in Europe were subjected to the curren...

The „Barnett formula‟, which governs the transfer of block grant from the UK Treasury to the governments of Scotland, Wales, and Northern Ireland to fund devolved services, is fatally flawed. It bears no relation to relative need. Also, because the devolved administrations do not raise most of the taxation required to fund their services, they have no incentive to be fiscally responsible. The S...

Disasters inevitably trigger far-reaching consequences affecting all living things and the environment.  Therefore, top managers and decision-makers in disaster management seek comprehensive approaches to evaluate facilities and network preparedness in dealing with the response phase of predicted disaster scenarios in terms of number of casualties, costs, and unmet demands.  In this regard, pre...

globalization, as the most important change at recent age, depends on developing of science, technology and information. it has several effects on aspects of human activities such as social and political studies and changing ideas. moreover, power, the central concept in politics, has confronted different approaches. so, any subject, e.g. political development, needs re-definition and re-explan...

constructionof underground dams is a practical solution to save groundwater in alluvium watersheds, particularly in arid and semi-arid regions where surface water scarcity is an environmental challenge. considering socio-economic and environmental benefits of underground dams, the accurate locating is the primary consideration for dam construction. the new technologies and methods are a step to...