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It's thought that children grow increasingly distant and independent from their parents during their teen years. But a new longitudinal study has found that spending time with parents is important to teens' well-being.

The study, conducted at the Pennsylvania State University, appears in the journal Child Development.

ANN ARBOR, Mich.---Children exposed to ethnic and political violence in the Middle East are more aggressive than other children, a new study shows. And the younger children are, the more strongly they are affected, in a "chain of violence" that goes from political and ethnic strife, to violence in communities, schools, and families, and ends with their own aggressive behavior.

"Our results have important implications for understanding how political struggles spill over into the everyday lives of families and children," says psychologist Paul Boxer, lead author of the study.

Kim Sport, who survived two battles with breast cancer, had a mastectomy and breast reconstruction at the same time and is passionate about educating other women who are facing breast cancer.

"I feel that it is very important to share my experience with other women because I don't want them to just have to look at a photo. I want to show them what reconstruction really looks like," said Sport, who has shared her reconstruction results with small groups of breast cancer patients and looks forward to raising awareness in a bigger way on BRA Day.

Turns out they were right.

Cha, a graduate student in cell and molecular biology at the university, searched for a molecule that would inhibit the action of those yeast genes. She found that thiabendazole did the trick.

She then tested the drug in developing frog embryos. These are fast growing vertebrates in which scientists can watch blood vessel growth in living animals.

Stress urinary incontinence (SUI) can occur due to sneezing, coughing, exercising or even laughing and happens because the pelvic floor muscles are too weak causing leakage when the bladder is put under pressure. New research published in BioMed Central's open access journal BMC Medicine shows that a new technique, using stem cells isolated from amniotic fluid, can regenerate damaged urethral sphincter muscles and prevent pressure incontinence in mice.

The researchers base their findings on 90 patients with knee osteoarthritis, who were referred for group acupuncture to two knee pain clinics in St Albans, Hertfordshire, in 2008 and subsequently monitored for two years.

The correct therapeutic dose is important for this commonly used painkiller, say the authors, because it is potentially fatal to give too high a dose; and too low a dose may result in more serious illness.

The authors surveyed 45 carers and 28 community pharmacists to find out what dose of paracetamol they thought would be appropriate for an eight year old child, weighing 25, 32, or 50 kg.

They also observed the doses given to 86 children, one in three of whom was overweight/obese, in the emergency care department of a specialist children's hospital.

PHILADELPHIA, Aug. 20, 2012 — A new made-in-the-lab material designed to rejuvenate the human voice, restoring the flexibility that vocal cords lose with age and disease, is emerging from a collaboration between scientists and physicians, a scientist heading the development team said here today.

LIVERPOOL, UK – 20 August 2012: A lung cancer risk prediction model developed by scientists at the University of Liverpool has been shown to be a viable tool for selecting high risk individuals for prevention and control programmes.

The model, developed at the University's Cancer Research Centre and funded by the Roy Castle Lung Cancer Foundation, was tested in international datasets and found to be a more effective predictor of individuals at risk than smoking duration or family history alone. The results are published in the Annals of Internal Medicine.

Government policies that make healthy foods more affordable, improved sidewalk, street and land-use design to encourage physical activity, and bans on public, workplace or residence smoking are among 43 effective public health strategies identified in an American Heart Association statement.

The statement is being published in Circulation, an American Heart Association journal, and is based on researchers reviewing and grading more than 1,000 international studies of diet, physical activity and anti-tobacco public health interventions.

CHICAGO – Using a computer-based simulation model, researchers project that a continued decline in male circumcision rates in the United States to levels in Europe, where the procedure is not routinely covered by insurance, may be associated with increased estimated lifetime medical costs and a higher estimated prevalence of infections including human immunodeficiency virus (HIV) and human papillomavirus (HPV), according to a report published Online First by Archives of Pediatrics & Adolescent Medicine, a JAMA Network publication.

A team of disease experts and health economists at Johns Hopkins warns that steadily declining rates of U.S. infant male circumcision could add more than $4.4 billion in avoidable health care costs if rates over the next decade drop to levels now seen in Europe.

The risk of dying from breast cancer was not related to high mammographic breast density in breast cancer patients, according to a study published August 20 in the Journal of the National Cancer Institute.

One of the strongest risk factors for non-familial breast cancer is elevated mammographic breast density. While women with elevated mammographic breast density have a higher risk of developing breast cancer, it is not established whether a higher density indicates a lower chance of survival in breast cancer patients.

PHILADELPHIA, Aug. 20, 2012 — Progress toward a new emergency treatment for internal bleeding ― counterpart to the tourniquets, pressure bandages and Quick Clot products that keep people from bleeding to death from external wounds ― was reported here today at the 244th National Meeting & Exposition of the American Chemical Society, the world's largest scientific society.

Boston (Aug. 20, 2012) – Research conducted at the Angiogenesis Laboratory at Massachusetts Eye and Ear Infirmary, has for the first time, identified the mode of death of cone photoreceptor cells in an animal model of retinitis pigmentosa (RP). This groundbreaking study, led by Demetrios G. Vavvas, M.D., Ph.D., and including Joan W. Miller, M.D., Mass.