Labor migration is a complex phenomenon, yet while much attention has been paid to understanding the drivers of migration, there huge knowledge and policy gap regarding effects on people communities left behind. We sought explore impacts rural outmigration migrant-sending in Ethiopia. This remains an understudied topic when it comes research Our investigation based critical review literature pe...

Abstract The sending-or-not-sending (SNS) protocol of the twin-field (TF) quantum key distribution (QKD) can tolerant large misalignment error and its rate exceed linear bound repeaterless QKD. original SNS all variants TF-QKD require perfect vacuum sources, but in real world experiments there is no practical source. Instead, experimenters use extremely weak sources to substitute which may brea...

In this paper we try to clarify the issue of associations as a communication infrastructure between objects, in search for a unified view of the static and dynamic aspects of associations. Communication through associations depends on navigability and visibility, therefore the interlacement of these two concepts is examined. But first the very definition of navigability has to be settled, since...