01/11/2012

US stolen phone database in operation

US mobile carriers began implementing a system this week to block the use of stolen mobile phones, part of an effort to curb rising thefts of smartphones such as the iPhone.

Researchers propose new building guidelines to clean up city air

As urban populations expand, downtown buildings are going nowhere but up. The huge energy needs of these skyscrapers mean that these towers are not only office buildings, they're polluters with smokestacks billowing out toxins ...

Economists find kinship networks play key role to access credit

In times of financial hardship, or when opportunities arise, the ability to borrow can be critical. Some people rely on commercial lenders, while others depend on relatives, especially in developing countries. But a new study ...

Anthropocene continues to spark scientific debate

How have humans influenced Earth? Can geoscientists measure when human impacts began overtaking those of Earth's other inhabitants and that of the natural Earth system? Responding to increasing scientific recognition that ...

USDA patents method to reduce ammonia emissions

Capturing and recycling ammonia from livestock waste is possible using a process developed by U.S. Department of Agriculture (USDA) researchers. This invention could help streamline on-farm nitrogen management by allowing ...

Feedback loop maintains basal cell population

Notch – the protein that can help determine cell fate – maintains a stable population of basal cells in the prostate through a positive feedback loop system with another key protein – TGF beta (transforming growth factor ...

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