background: primary cultures of embryonic neurons have been used to introduce a model of neurons in physiological and pathological conditions. however, age-related cellular events limit this method as an optimal model in adult neurodegenerative diseases studies. besides, short-interval changing media in previous cultures decreases the effectiveness of this model. as an example of this matter, w...

Background: Primary cultures of embryonic neurons have been used to introduce a model of neurons in physiological and pathological conditions. However, age-related cellular events limit this method as an optimal model in adult neurodegenerative diseases studies. Besides, short-interval changing media in previous cultures decreases the effectiveness of this model. As an example of this matter, w...

IT outsourcing has three broad forms: (i) Single-Sourcing, where the client outsources to one primary vendor, (ii) Single-Sourcing with subcontracting , where the primary vendor involves other/secondary vendors in the project, and (iii) Multi-Sourcing, where the client outsources to multiple primary vendors. Using a dataset of large IT outsourcing contracts from the SCD database with 22,031 lar...