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Environment > Precursor
The following information is about Precursor.
Precursor Defined
In photochemistry, a compound antecedent to a pollutant. For example, volatile organic compounds (VOCs) and nitric oxides of nitrogen react in sunlight to form ozone or other photochemical oxidants. As such, VOCs and oxides of nitrogen are precursors.
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Off-site Precursor Links, User Submitted
The following links have been collected through user bookmark submission in the Precursor category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
Mon Oct 6
- Want to Quit Smoking? Try a Mobile Phone | NextBillion.ne t - Development Through Enterprise
- allAfrica.com: Africa: Mobile Phones Bridge Colonial Borders (Page 1 of 2): one network free roaming conceptual strategy
Tue Sep 30
Sun Sep 21
- ENVIRONMENT-SO UTH AFRICA: Pioneering Conservation Project At Risk: Over the past year and a half, considerable money and effort has been invested in conservation in the area. The national Department of Environmental Affairs and Tourism has made $435,000 available to the eThekwini Municipality to launch the 'Working 4 Ecosystems 9; project, which was implemented by the Wildlife and Environmental Society of South Africa (WESSA). WESSA trained 70 people from Tshelimnyama and Dassenhoek in nature conservation, including reserve management, removing invasive alien plants, anti-poaching initiatives, use of herbicides, fire management, field patrols, first aid as well as trail development and maintenance. Giba Gorge is significant for conservation purposes because of its large number of rare and endemic plant and animal species.
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Sat Sep 6
- The Bride Stripped Bare By Her Bachelors, Even - Wikipedia: love gas
- Growth Coming in Cambodia's Mobile Sector: Exhibit 1: Mobile Penetration Rates in Southeast Asian Markets, 2006
- India's Mobile VAS Industry
- AMPU (Average Margin Per User) Market Analysis, Data & Figures: For example, prepay customers have been widely assumed as unprofitable. Indeed, NTT DoCoMo lists "low rate of prepaid customers" ; as one of its advantages in the Japanese market. Prepaid customers may be low ARPU. However, they may generate higher revenue per minute than do post-pay customers. In addition, they require no handset subsidies, no billing and collection costs, and produce minimal bad debt. For these reasons, they can generate positive AMPU and with that, profits. Second, even though data services will raise revenues, the full costs of delivering data may exceed such revenues. If so, AMPU will be negative.
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Off-site Precursor Research Links
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