Severity: Notice
Message: Undefined variable: sigment
Filename: conference/conference_header.php
Line Number: 15
Backtrace:
File: /var/www/html/application/views/conference/conference_header.php
Line: 15
Function: _error_handler
File: /var/www/html/application/core/MY_Loader.php
Line: 8
Function: view
File: /var/www/html/application/controllers/Ocm.php
Line: 47
Function: conference_layout
File: /var/www/html/index.php
Line: 325
Function: require_once
8th International Summit on
Seoul, South Korea
Professor
Cairo University
Egypt
Cairo University
Environmental science
