As environmental awareness grows, the world is increasingly focused on living a low-carbon, energy-sustainable lifestyle. At same time, with global outbreak of COVID-19 in 2020, online concerts are growing rapidly to maintain social distance between people and keep isolated lives rich. Therefore, this survey, we focus music scene, which has flourished during epidemic, compares various indicator...

the qur’an has informed about the presence of angels in heaven and has deprived and prohibited the devils and jinns from hearing their words. that is to say, whenever a rebellious devil (satan) intends to listen to the words of the angels, it will be targeted by meteorites and get rejected and disappointed. the present article explores into and reappraises the related verses and states that the...

The literature about informal investors, persons who individually invest in new and expanding entrepreneurial endeavors, has grown considerably over the past decade. Most of the results, however, are based on methodologies which do not include a randomly selected sample of respondents. Proper sampling procedures are necessary for the literature to grow beyond the case-dependent, descriptive wor...

In politics as in history, masters accomplish great things, but often, lowly beings such as servants perform those tasks. At times, they subvert them. In science, servant-beings are frequently described as demons and angels. Who are these effective agents? This essay traces parts of the large historical network of persons and places in which ‘little helpers’ service their master’s will. It look...