This blog may help people explore some of the 'hidden' issues involved in certain media treatments of environmental and scientific issues. Using personal digital images, it's also intended to emphasise seasonal (and other) changes in natural history of the Swansea (South Wales) area. The material should help participants in field-based modules and people generally interested in the natural world. The views are wholly those of the author.
Sunday, 31 January 2016
Thursday, 28 January 2016
The Cherry on the Top?
An interesting study involving more than 120,000 US subjects, some studied over more than 20 years (using a combination of measures and self-reported diets and life style activities), has suggested that a diet rich in brightly-coloured fruit and vegetables, rich in flavinoids, helps to limit weight gain especially in middle age (http://www.theguardian.com/lifeandstyle/2016/jan/27/natural-compound-fruit-veg-flavonoids-help-prevent-weight-gain-study). This is interpreted as a possible help to countering the obesity epidemic (with its linkage to a variety of diseases including diabetes) but the association with these 'super foods' may be a bit more complex than meets the eye. The diets seem to have been self-selected and it is possible that the subjects eating blue berries, strawberries, cherries, citrus fruits, aubergines et cetera and drank tea were the kind of people who would be health conscious and keen to keep their weights down. These foods are also generally rich in fibre and would fill without fattening. Having said that, they sound like good food items to me!
Saturday, 23 January 2016
Two Cheers?
Interesting news that some of the 24 million a day waste slices of bread in the UK are to be converted into Toast ale (http://www.theguardian.com/uk-news/2016/jan/22/toast-ale-beer-surplus-bread-feedback-food-waste). On the one hand, this is an interesting attempt to utilise some of the otherwise wasted food in the country but this news come out on the day that it is confirmed that the UK profits of beer, spirits and wine producers depend on encouraging folk to consume dangerously high levels of alcohol. The arrangement will only work if consumers of 'Toast' drink less of the other stuff.
Friday, 22 January 2016
You Can Always Count on Us?
An odd report that the Venus flytrap (Dionaea muscipula) can apparently 'count' in order avoid wasting 'energy' whilst attempting to catch flies, in order to provide scarce nitrogen (http://www.theguardian.com/environment/2016/jan/21/venus-flytraps-able-to-count-in-order-to-avoid-false-alarms-study-finds). I think that this is an odd use of the word count. This vegetable predator doesn't have anything like a nervous system to calculate with but it employs systems with its thigomosensitive (touch-sensitive) hairs and its closure mechanisms (which largely involve rapid movements of water) where priming occurs. One touch to get ready, Two touches to close and More to produce digestive systems.
Monday, 18 January 2016
Sunday, 10 January 2016
Friday, 8 January 2016
What Did the Neanderthals Ever Do For Us?
Scientists have speculated that cross-species breeding between Homo sapiens and our Neanderthal cousins in Europe, have led to our species acquiring three genes that boost our immune competence (http://www.theguardian.com/science/neanderthals). The down side of this 'gift' may be that it causes our rejection systems to be somewhat over-active, increasing the probability of developing autoimmune diseases and allergies to items such as pollen (i.e. Hayfever).
Subscribe to:
Posts (Atom)
Seeing the Changes 2183
Early ripening fruit may seem convenient but some folk think it confirms environmental stress. There's also a possibility th...
-
Early ripening fruit may seem convenient but some folk think it confirms environmental stress. There's also a possibility th...
-
It's necessary, where possible, to replace diesel and petrol-fueled vehicles by electrical equivalents. Electric vehicles (EVs) don...