NOTE: This Current Issue (Volume 8, 2018) may contain abstracts only articles at the end. This means these articles have been peer reviewed, accepted for publication and published online without pdf immediately after final acceptance. They will receive pdf full text and pagination when the proofs are ready after corrections. These articles are still searchable and citable by Digital Object Identifier (DOI). Please note that, the DOI number will become active only after the article pdfs are uploaded.