Health & Wellness
Mercury is poisonous, but it's also a necessary part of most compact fluorescent bulbs, the kind that environmentalists and some governments are pushing as a way to cut energy use.
With an estimated 150 million CFLs sold in the United States in 2006 and with Wal-Mart alone hoping to sell 100 million this year, some scientists and environmentalists are worried that most are ending up in garbage dumps.
Long billed as a "green" product for environmentally conscious consumers, compact fluorescent light bulbs (CFLs) are quickly becoming the norm in household lighting - and may soon replace traditional incandescent bulbs altogether.
But CFLs' cool-burning illumination is made possible by a pinch of poison - about five milligrams of mercury sealed inside every glass tube - and the need for the element is unlikely to change anytime soon.
Mercury is a potent neurotoxin and long-lived environmental contaminant, and even the small amount present in CFLs poses a problem. When the bulbs break, either in the house or at a waste disposal site, their mercury content is released.
In a unique study of women's security and participation in three post conflict societies - Northern Ireland, South Africa and Lebanon - researchers found that women see security differently from men. And because men dominate the institutions of peace-making and peace-building, they often fail to consider the specific security needs of women.
The investigation, which was part of the ESRC's New Security Challenges Programme, was carried out through a research partnership between the University of Ulster, Queen's University Belfast and Democratic Dialogue and with research associates in South Africa (Centre for Study of Violence and Reconciliation) and Lebanon (Lebanese American University in Beirut).
In all three case studies, women saw security as much more than physical safety. It was about feeling represented in societal institutions, having a job, an education for their children, a good health service and a feeling that society recognised the specific interests of women.
"For me, the word security in Arabic is not to be afraid. First, not to be afraid to be hungry, to move, to think, and to be misjudged," explained a Lebanese woman to the researchers.
Comment: Everything natural is a disease that pharmaceutical companies must cure.
Low levels of serotonin, a neurotransmitter in the central nervous system, have been associated with several disorders, including increased aggression and depression.
It is known that impulsive aggression in adulthood is associated with disturbances in serotonergic function, but until now research examining this association in childhood has produced inconsistent results.
This prospective study, published in the May issue of the British Journal of Psychiatry, examined the relationship between serotonergic function measured in childhood and the later emergence of personality disorder.
In a review to be published in the May 18 issue of the journal Science, Jonathan Haidt, associate professor of psychology at the University of Virginia, discusses a new consensus scientists are reaching on the origins and mechanisms of morality. Haidt shows how evolutionary, neurological and social-psychological insights are being synthesized in support of three principles: 1) Intuitive primacy, which says that human emotions and gut feelings generally drive our moral judgments; 2) Moral thinking if for social doing, which says that we engage in moral reasoning not to figure out the truth, but to persuade other people of our virtue or to influence them to support us; and 3) Morality binds and builds, which says that morality and gossip were crucial for the evolution of human ultrasociality, which allows humans - but no other primates - to live in large and highly cooperative groups.
The paper marks an important step forward for decision science, because it shows that tasks developed to study decision-making errors in psychological labs can be used to gauge decision-making ability in real life. The study also shows that, although decision-making competence is correlated with verbal and nonverbal intelligence, it is still a separate skill.
"Intelligence doesn't explain everything. Our results suggest that people with good decision-making skills obtain better real-life outcomes, even after controlling for cognitive ability, socio-economic status and other factors," said Wändi Bruine de Bruin, a researcher in the Department of Social and Decision Sciences at Carnegie Mellon and the lead author of the study. "That is good news, because decision-making skills may be taught."
The study recruited 360 people with diverse backgrounds. Each completed seven tasks measuring "Adult Decision-Making Competence," or their ability to avoid common decision-making errors. For example, a good decision-maker should be able to make choices independent of how information is presented, or framed. Imagine that you are learning about a type of medication that is 99 percent effective, for instance. You should be equally likely to use it if it is described as 1 percent ineffective.
Asda revealed it was doing the same with 9,000 own-brand items earlier this week.
Comment: The author puts a positive spin on the situation of health in America and takes it for granted that her readers are employed and have a health insurance. Something a lot of Americans are lacking.