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Science News Archive 2004 - Page 120


Page 120 of 135

Smoking in movies returns to 1950s levels

A recent study found that cigarette smoking in top-grossing films has increased to 1950s levels, with an average of 10.7 smoking incidents per hour of screen time. The rise in screen smoking is concerning for youth smoking habits, as previous studies have shown a link between movie smoking and youth tobacco use.

SourceCenter for Advancing Health·JournalAmerican Journal of Public Health·DateFeb 24, 2004

Insights gained from molecular modeling may lead to better insecticides

Researchers used molecular modeling to study the detoxifying proteins of black swallowtail butterflies and corn earworms. The earworm's protein is more flexible, allowing it to bind to and detoxify six different plant defense chemicals and three common insecticides, making it a master of adapting to new pesticides and host plants.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateFeb 24, 2004

MCOs shortchange minority Medicaid patients

A recent study by Penn State researchers found that Minority Medicaid patients face barriers to quality care due to language and cultural factors. The study analyzed responses from 49,327 adults in 14 states, revealing significant disparities in care reports among linguistic minorities.

SourcePenn State·JournalJournal of General Internal Medicine·DateFeb 23, 2004

Study compares clinical diagnoses and autopsy diagnoses in ICU deaths

A study of 1,492 ICU patients found that major discrepancies between clinical and autopsy diagnoses exist, with up to 31.7% of cases identified as having major diagnostic errors. Autopsies also revealed missed diagnoses, including cancers, strokes, and heart attacks, which could have changed management and potentially saved lives.

SourceJAMA Network·JournalArchives of Internal Medicine·DateFeb 23, 2004

Women who were sexually abused as children more likely to smoke

A study published in Addictive Behaviors found that women who were sexually abused as children were 3.8 times more likely to be current smokers, with twice the likelihood of ever smoking cigarettes and starting by age 14. The connection between childhood sexual abuse and smoking may help inform new approaches to prevent or quit smoking.

SourceMayo Clinic·JournalAddictive Behaviors·DateFeb 23, 2004

Computer method identifies potentially active enzymes

A new computer method called FamClash has been developed to predict the activity of hybrid enzymes, which are created by combining similar enzymes from different organisms. The approach identifies incompatible residue pairs that can lead to reduced enzyme activity, and provides valuable insights for protein engineering interventions.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateFeb 23, 2004

Home on the RangeView

A new Web site allows users to compare greenness from one year to the next, between years, against a 14-year average and at two-week intervals. This information is invaluable for making long-term land management decisions, enabling natural resource managers to monitor vegetation dynamics through time and across landscapes.

Antibiotics may not be necessary when treating children with a simple skin abscess

A study by UT Southwestern Medical Center researchers found that draining a skin or soft-tissue abscess and packing the wound with gauze is an effective therapy for simple skin abscesses in children, potentially reducing the need for antibiotics. The treatment was shown to be effective even when treating methicillin-resistant Staphyloc...

SourceUT Southwestern Medical Center·JournalThe Pediatric Infectious Disease Journal·DateFeb 23, 2004

New discovery may lead to therapy for incurable blood cancer

A recent finding reveals a frequent abnormal cellular event occurring in about half of all myeloma cases, identifying c-maf as an attractive target for therapeutic intervention. Inhibition of c-maf function blocks tumor formation in mice, suggesting its potential as a novel target for future therapies.

SourceCell Press·JournalCancer Cell·DateFeb 23, 2004

USC researchers produce a hairier mouse

Researchers at USC have created a transgenic mouse with an overexpressed noggin gene, resulting in increased hair follicles, thicker fur, and additional whiskers. The study also reveals unusual changes to the mice's eyes, feet, and genitalia, challenging the distinction between normal and abnormal variations.

SourceUniversity of Southern California·JournalAmerican Journal Of Pathology·DateFeb 23, 2004

Preventative bed rest during pregnancy may be more harmful than helpful

A $1.7 million NIH-funded study found that bed rest in high-risk pregnancies is associated with weight loss, increased risk of fetal growth restriction, backache, joint soreness, headaches, muscle loss, and depression. The study suggests that prescribed antepartum bed rest may be more harmful than helpful.

SourceSAGE·JournalBiological Research For Nursing·DateFeb 21, 2004

Lehigh researchers hone radiation source for THz devices

Terahertz (THz) frequencies have potential applications in medicine, remote sensing, imaging, and satellite communications. Lehigh researcher Yujie J. Ding has developed a compact THz radiation source that can generate coherent waves with high output powers, enabling new diagnostic tools and monitoring technologies.

SourceLehigh University·JournalApplied Physics Letters·DateFeb 20, 2004

Predators and human health

Research by Ostfeld and Holt found that mobile predators like foxes, coyotes, and falcons effectively suppress rodent numbers, reducing disease transmission to humans. In contrast, specialized predators like weasels cause periodic population booms, promoting the spread of rodent-borne pathogens.

SourceEcological Society of America·JournalFrontiers in Ecology and the Environment·DateFeb 19, 2004

System can predict disease spread

Researchers at Oregon State University and EPA developed a new approach to predict disease spread based on climate change and ecological changes. The system uses loop analysis and vectorial capacity formula to estimate the growth rate of diseases, providing valuable insights for public health officials.

SourceOregon State University·JournalTransactions of the Royal Society of Tropical Medicine and Hygiene·DateFeb 19, 2004

Vaccine shows promise for kidney cancer

A new vaccine has shown significant improvement in 5-year progression-free survival rates for patients with renal cancer, with a 77% rate in the vaccinated group compared to 68% in the control group. The well-tolerated treatment was associated with only 12 adverse events.

SourceThe Lancet_DELETED·JournalThe Lancet·DateFeb 19, 2004