Highlights from the July 2007 Journal of the American Dietetic Association
...es, 52 percent chose portion sizes smaller than or equal to dietary guidelines. The study found kids who ate at fast-food restaurants more than once per week were more likely to consider large portions of fries and small portions of vegetables to be usual, as did children from socioeconomically disadvant...Is nutrient loading a smaller problem than we think?
...ed that consumer (top-down) effects are greater or equal to those of nutrients. One example they cite takes on the classic model of loss of estuarine seagrass. While common understanding holds that nutrient enrichment leads to epiphytic growth on seagrass, killing the plants by blocking sunlight, cascading...Renewable energy wrecks environment
... kilometers plus land for storage and retrieval to equal a 1000 MWe nuclear plant. Moreover, every form of renewable energy involves vast infrastructure, such as concrete, steel, and access roads. "As a Green, one of my credos is 'no new structures' but renewables all involve ten times or more stuff per ki...Presence of wolves allows aspen recovery in Yellowstone
...of wolves. The effect of behavioral changes may be equal to or even greater than lower elk population levels in allowing tree survival, the researchers said in their report. In riparian zones, where wolves can most easily sneak up on elk, and gullies or other features make it more difficult for elk to es...Negative effects of plastic's additive blocked by nutrient supplements
...ne what the levels of maternal BPA in humans would equal those that caused epigenetic changes seen in the mice. The levels of BPA used in the current experiments were five times lower than that considered harmful for mice, showing that even a low exposure was able to cause noticeable effects in the offspri...Biologist traces coconut's history through DNA
...that more than 11 million hectares (one hectare is equal to 100 acres) are now planted in coconut in 86 tropical countries. Olsen will study the phylogeography of C. nucifera and its ancient dispersal; the geographical origin(s) of domestication; the impact of human activities in homogenizing popu...UCLA scientists produce functioning neurons from human embryonic stem cells
...t not all human embryonic stem cell lines are born equal is critical, Sun said. If youre studying a disease found in a certain part of the brain, you should use a human embryonic stem cell line that produces the neurons from that region of the brain to get the most accurate results from your study. Hunting...1 of deep ocean's most turbulent areas has big impact on climate
... In fact, the turbulence packs an energy wallop equal to about five million watts -- comparable to outpu...ergy when you add all the seawater in the passage, equal to around five million watts, which is comparable to output from a nuclear reactor. ...No evidence that widely prescribed statins protect against prostate cancer
...n 2002 and 2005 on thousands of men and women with equal representation of African American, Caucasian and Hispanic populations. The value of the BACH study, according to Hall, is that we capture real world use of medications in the community, which might be a more realistic representation of their impa...Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
... chemicals known as green tea catechins in amounts equal to that found in 8-16 cups of green tea − boosted production of the enzymes, which belong to the glutathione S-transferase (GST) family, by as much as 80 percent in some participants. GST enzymes are believed to be crucial to the bodys defens...