Privacy Policy

This website obtains certain information about your visit here.
The information we receive depends on what you do when you visit our site.

The following information is collected and stored:

• the name of the domain and host from which you access the Internet (for example, aol.com)
• the Internet protocol (IP) address of the computer you are using
• the browser software you use and your operating system
• the date and time you access this site
• the Internet address of the website from which you linked directly to our site

OPG uses this information to measure the number of visitors to the different sections of our site, and to help us make our site more user-friendly. 

If you register to view abstracts and download technical papers, or subscribe to the newsletter:

We enter your email address into our database in order to send you our newsletter, or to conduct further communication with you.

It's necessary for you to know that the message you send is not secure against interception. Because of this, you should never send sensitive information (especially personal or credit card information). Instead you should use other methods of communication, such as postal mail or telephone.

A "cookie" is a small text file that this website may place on your computer's hard drive in order to collect information about your activities on the site. Most consumers do not know that "cookies" are being placed on their computers when they visit websites. If you want to know when this happens, or to prevent it from happening, you can set your browser to warn you when a website attempts to place a "cookie" on your computer. Please note that certain areas of this web site may not be accessible if you disable "cookies" in your browser.