منابع مشابه
Island worries
additional risk, he says, comes from the very property that regenerative medicine wants replacement organs to possess, namely invisibility to the immune system. " Tissues derived from iPSC may share with ES cells the potential to display immune privilege which may provide a 'safe haven' in which rare transformed cells may develop into tumours or viral pathogens may flourish under the radar of t...
متن کاملDiversity worries
But the giant weta from New Zealand holds the record as the heaviest insect. As a flightless insect, it has put on the bulk. A female measuring just 80 mm long has been recorded at 71 grammes. In perspective, most beetles at this length probably weigh 5 grammes and birds of this size would probably weigh 12 grammes. And, of course, the colonial insects break records. Jones notes that leafcutter...
متن کاملWinter worries
spend the next nine months without making landfall. And it is becoming increasingly clear that very little is known about the birds during this time. As they breed only above 50 degrees latitude, they are considered cold-water birds, but researchers working with puffins breeding at England's largest colony on the Farne Islands are concerned about their winter environment as there has recently b...
متن کاملNAFTA and U.S. Agriculture
To monitor mortality rates from malignant melanoma we analysed all patients in Sweden (6,324) who died of malignant melanoma in 1953 through 1987. Age-standardised rates per 105 increased from 1.1 to 4.0 in men and from 1.0 to 2.6 in women. The average annual increase levelled off in men from 4.6% during 1953-1967 to 2.0% in 1978-1987; and in women from 3.7% to 0%. Multivariate analyses showed ...
متن کاملThe Rise of NAFTA
Within the now vast literature on globalization, two persistent themes include the rise of new regionalisms, and the fate of smaller economies being increasingly linked to global giants. While much of this discussion has focused on the European Union, the case of the North American Free Trade Agreement may be particularly instructive. First NAFTA arises at the same time as we spot the quickenin...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 2004
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.112-a985a