ISSN Print: 1949-4998    ISSN Online: 1949-5005
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If you have any questions about paper submissions, processing and publishing, please send your inquiries to editorial assistant Joanna Cheng via, or

If you need immediate access to the editorial assistants, please contact us by using skype
(account: scirp_service):  Text Contact,  Voice Contact,
or call +1-209-266-2606 (have your paper ID ready when you make the call).

If you have complaints or suggestions for the journal, please contact

Formal complaints are handled based on SCIRP's Complaints Procedure.