Women donate less to charity than men in some contexts

Given the chance, women are more likely than men to opt out of a request to give a charitable donation, a group of economists have found. The issue of which gender is more generous has been debated for years. A new field experiment conducted by scholars at the University of Chicago and University of California, Berkeley shows that when it’s easy to avoid making a donation, such as not responding to a door-to-door solicitor, women are less likely than men to give.

The results of the study are published in the article, “The Importance of Being Marginal: Gender Differences in Generosity,” in the May issue of the American Economic Review, Papers and Proceedings.

The study tested people’s motivations to give, whether they responded to social pressure or from an attitude of altruism, said John List, a UChicago economist and expert of philanthropy.

In the study, researchers visited neighborhoods to raise money for a local children’s hospital and an out-of-state environmental organization. In one part of the study, visits were unannounced. In two other parts of the study, people received fliers—either announcing the solicitation the following day or giving people an opportunity to opt-out of the request for funds.

“The simple flier lowers the share of people answering the door, relative to the people who did not have warning of the visit, but it does not affect the share of people giving,” said List, the Homer J. Livingston Professor in Economics.

“The opt-out option lowers both the share of people answering the door and the share of individuals giving,” he said. The drop in women’s giving largely drives this change, List explained.

About three percent of women and men gave money when the visit was unannounced. When allowed to opt-out, men’s giving dropped slightly, while women’s giving fell to about half of the level of previous giving.

When the scholars looked over other data in the study to determine gender-specific altruism distributions, they found that women were more likely at the margin of giving to a charitable cause, and therefore more likely to opt-out if they had a chance.

“We need more study on this issue, but it could be that women are more sensitive to social cues than are men, and that is why they are more likely to give in situations where they don’t have an easy way to avoid a donation, such as when they are asked for a donation face-to-face,” List said.

The researchers also considered the impact of people’s apprehension, particularly among women, to opening the door to a stranger, List said. “We found that in an unannounced visit, women are just as likely to open the door and give as men,” he said. If security were a particularly strong concern among women, the gender differences would have appeared among the people who were contacted unannounced, he said.

Other authors of the study are Stefano DellaVigna and Ulrike Malmendier, both professors of economics at the University of California, Berkeley; and Gautam Rao, a graduate student in economics at the University of California, Berkeley.

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Even hands-free talking leads to spike in errors: UAlberta study

Talking on a hands-free device while behind the wheel can lead to a sharp increase in errors that could imperil other drivers on the road, according to new research from the University of Alberta.

A pilot study by Yagesh Bhambhani, a professor in the Faculty of Rehabilitation Medicine, and his graduate student Mayank Rehani, showed that drivers who talk using a hands-free cellular device made significantly more driving errors—such as crossing the centre line, speeding and changing lanes without signalling—compared with just driving alone. The jump in errors also corresponded with a spike in heart rate and brain activity.

“It is commonplace knowledge, but for some reason it is not getting into the public conscience that the safest thing to do while driving is to focus on the road,” said Rehani, who completed the research for his master’s thesis in rehabilitation science at the U of A.

The researchers became interested in the topic in 2009 shortly after Alberta introduced legislation that banned the use of handheld cellphones while driving but not hands-free devices. In this study, they used near infrared spectroscopy to study the brain activity of 26 participants who completed a driving course using the Virage VS500M driving simulator at the Glenrose Rehabilitation Hospital.

Near infrared spectroscopy is a non-invasive optical technique that allows researchers to examine real-time changes in brain activity in the left prefrontal lobe. Participants were first tested in a control condition, using the simulator to drive in city street conditions using no telecommunications device. They were tested again while talking on a hands-free device during two-minute conversations that avoided emotionally charged topics.

The research team found there was a significant increase in brain activity while talking on a hands-free device compared with the control condition. A majority of participants showed a significant increase in oxyhemoglobin in the brain, with a simultaneous drop in deoxyhemoglobin—a sign of enhanced neuronal activation during hands-free telecommunication.

“The findings also indicated that blood flow to the brain is significantly increased during hands-free telecommunication in order to meet the oxygen demands of the neurons under the ‘distracted’ condition,” said Bhambhani.

He added the results did not reveal a significant relationship between enhanced neuronal activation and the increase in the number of driving errors, most likely because the near infrared spectroscopy measurements were recorded from a single site, the prefrontal lobe.

The findings are considered novel on a topic that is receiving considerable attention by policy-makers globally. Rehani’s contribution to the project earned him the 2013 Alberta Rehabilitation Award for Innovation in Rehabilitation (Student).

The researchers note this is a preliminary study and hope that it can be part of a larger body of literature that can help inform policy-makers about the safety implications of using hands-free devices while driving.

For Rehani, the work was part of rewarding academic journey at the U of A, which gave him opportunities to do research in a number of areas in neuroscience. He said he received outstanding support from both the faculty and colleagues at the Glenrose—including Quentin Ranson, the occupational therapist and rehabilitation technology lead who helped facilitate the simulator research.

“To have a Faculty of Rehabilitation Medicine, which is the only free-standing faculty of its kind in Western Canada, and to have a hospital like the Glenrose dedicated to rehabilitation, is amazing,” he said. “Both workplaces have such a collegial environment, with quality faculty and staff who are both working toward patient betterment. These institutions connect so well, it’s fantastic.”

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Eco-Cuisine nationwide recall for salmonella risk

FOR IMMEDIATE RELEASE – May 23, 2013 – Eco-Cuisine of Boulder, Colorado is recalling all lots of T3314 Basic Brownie Mix, T3333 Betty Brownie Mix with Vanilla, T3388 Ground Beef Style Quick Mix, T3394 Sausage Style Quick Mix, T3416 Chocolate Cookie Mix, T3417 Lemon Muffin Mix, and T3418 English Scone Mix, CM25COOK Basic Cookie Mix 25 lb. bag, CM25MUFF Basic Muffin Mix 25 lb. bag, CM25SCON Basic Scone Mix 25 lb. Bag, because it has the potential to be contaminated with Salmonella, an organism which can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems.

Healthy persons infected with Salmonella often experience fever, diarrhea (which may be bloody), nausea, vomiting and abdominal pain. . In rare circumstances, infection with Salmonella can result in the organism getting into the bloodstream and producing more severe illnesses such as arterial infections (i.e., infected aneurysms), endocarditis and arthritis.

The baking mix products were distributed nationwide through direct sales and food service distribution centers.

No illnesses have been reported to date.

The recall was as the result of notification by CHS Foods that ingredients used in the aforementioned products were being recalled for Salmonella. The company has ceased the production and distribution of the product as FDA and the company continue their investigation as to what caused the problem.

Consumers who have purchased the above listed products are urged to return it to the place of purchase for a full refund. Consumers with questions may contact Eco-Cuisine Monday through Friday 8 am to 5 pm MDT at 303-402-0289

Eco-Cuisine
P.O. Box 17878
Boulder, CO 80308-0878

Product names and numbers here

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Early-life traffic-related air pollution exposure linked to hyperactivity

CINCINNATI—Early-life exposure to traffic-related air pollution was significantly associated with higher hyperactivity scores at age 7, according to new research from the University of Cincinnati (UC) and Cincinnati Children’s Hospital Medical Center.

The research is detailed in a study being published Tuesday, May 21, in Environmental Health Perspectives, a peer-reviewed open access journal published by the National Institute of Environmental Health Sciences, an institute within the National Institutes of Health (NIH).

The research was conducted by faculty members from the UC College of Medicine’s Department of Environmental Health in collaboration with Cincinnati Children’s. Nicholas Newman, DO, director of the Pediatric Environmental Health and Lead Clinic at Cincinnati Children’s, was the study’s first author.

“There is increasing concern about the potential effects of traffic-related air pollution on the developing brain,” Newman says. “This impact is not fully understood due to limited epidemiological studies.

“To our knowledge, this is the largest prospective cohort with the longest follow-up investigating early life exposure to traffic-related air pollution and neurobehavioral outcomes at school age.” Scientists believe that early life exposures to a variety of toxic substances are important in the development of problems later in life.

Newman and his colleagues collected data on traffic-related air pollution (TRAP) from the Cincinnati Childhood Allergy and Air Pollution Study (CCAAPS), a long-term epidemiological study examining the effects of traffic particulates on childhood respiratory health and allergy development. Funded by the National Institute of Environmental Health Sciences, CCAAPS is led by Grace LeMasters, PhD, of the environmental health department. Study participants—newborns in the Cincinnati metropolitan area from 2001 through 2003—were chosen based on family history and their residence being either near or far from a major highway or bus route.

Children were followed from infancy to age 7, when parents completed the Behavioral Assessment System for Children, 2nd Edition (BASC-2), assessing attention deficit hyperactivity disorder (ADHD) and related symptoms including attention problems, aggression, conduct problems and atypical behavior. Of the 762 children initially enrolled in the study, 576 were included in the final analysis at 7 years of age.

Results showed that children who were exposed to the highest third amount of TRAP during the first year of life were more likely to have hyperactivity scores in the “at risk” range when they were 7 years old. The “at risk” range for hyperactivity in children means that they need to be monitored carefully because they are at risk for developing clinically important symptoms.

“Several biological mechanisms could explain the association between hyperactive behaviors and traffic-related air pollution,” Newman says, including narrowed blood vessels in the body and toxicity in the brain’s frontal cortex.

Newman notes that the higher air pollution exposure was associated with a significant increase in hyperactivity only among those children whose mothers had greater than a high school education. Mothers with higher education may expect higher achievement, he says, affecting the parental report of behavioral concerns.

“The observed association between traffic-related air pollution and hyperactivity may have far-reaching implications for public health,” Newman says, noting that studies have shown that approximately 11 percent of the U.S. population lives within 100 meters of a four-lane highway and that 40 percent of children attend school within 400 meters of a major highway.

“Traffic-related air pollution is one of many factors associated with changes in neurodevelopment, but it is one that is potentially preventable.”

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