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ExposureScience.Org exists primarily to promote the field of Exposure Science and to encourage the influx of students into this field by providing students and instructions with high-quality and freely-available educational materials.   We believe in Open Access so that anyone in any country can learn about Exposure Science regardless of their current student status or income level.    By releasing the materials under an Open Source license, we aim to provide an organic, living set of materials that will grow and adapt to new problems and issues in Exposure Science through the contributio

As the original or primary author of contributed materials, you have control over how the material will be released. Basically, you can specify material as "Private Release" and restrict it to specific groups. Or you can specify it as "Public Release" to allow anyone to access it. Only materials tagged by their authors as "Public Release" will be included in hardbound versions of published workbooks and licensed under the Creative Commons Attribution Sharealike license.