Spend your time even for only few minutes to read a book. Reading a book will never reduce and waste your time to be useless. Reading, for some people become a need that is to do every day such as spending time for eating. Now, what about you? Do you like to read a book? Now, we will show you a new book enPDFd operating systems concepts policies and mechanisms that can be a new way to explore t...

We have developed and deployed several web-based tutors for C++ programming concepts. We have been remotely collecting usage data from these tutors, and analyzing them for the benefit of the students, the teachers and ourselves. In this paper, we will describe the tutors, the types of data collected, and the types of analysis we perform on the data for the benefit of the various constituencies ...

An attempt is made to sort out ambiguities existing in the current usage of several basic concepts describing hard collisions of photons. It is argued that appropriate terminology is often a prerequisite for correct physics.

Findings from scientific research largely remain inside the scientific community. Research scientists are being encouraged to use social media, and especially Twitter, for dissemination of evidence. The potential for Twitter to narrow the gap on evidence translated into policy presents new opportunities. We explored the innovative question of the feasibility of Twitter as a tool for the scienti...

BACKGROUND The choice of available contraceptive methods has increased in recent years; however, recent data on women's awareness of methods and reasons for their method choice, or reasons for changing methods, is limited. The aim of this study was to examine the use and awareness of contraceptive methods in the USA, UK, Germany, Italy and Spain. METHODS Quantitative survey of heterosexual wo...

In different times, people use different words to describe concepts. Change and stability in word usage are possible indicators of wider socio-cultural changes. To gain insight into how people perceive concepts, it is valuable to trace how the words denoting a certain concept change over time. Existing tools for exploring historical concepts, such as keyword searching or topic modeling, are ill...

There is an increased awareness of the roles that enterprise architecture (EA) and enterprise systems (ES) play in today’s organizations. EA and ES usage maturity models are used to assess how well companies are capable of deploying these two concepts while striving to achieve strategic corporate goals. The existence of various architecture and ES usage models raises questions about how they bo...

A case of myelofibrosis related to thorotrast administration is described. Current concepts of acute myelofibrosis are discussed, as are the varied complications of thorotrast.