Low-cost airlines are now the new major players
Airport planners must adapt to low-cost airlines' requirements for smaller, cheaper terminals with flexible designs. Smaller airports have fewer ground and air traffic control delays than large ones.
Science News Archive 2008
Browse by Month - 2008
Page 143 of 240
HSPH researchers discover natural inflammation-fighting mechanism in body-fat cells
Scientists have discovered a previously unknown molecular signaling pathway in body fat cells that normally acts to suppress harmful inflammation, but is overridden by obesity. The protective function can be boosted with drugs targeting PPAR-d, potentially treating insulin resistance and diabetes.
Earthworm detectives provide genetic clues for dealing with soil pollution
A new study has provided genetic clues for dealing with soil pollution by using a systems toxicology approach to understand the impact of four soil contaminants on earthworm gene expression patterns. The research reveals subtle changes induced by toxic chemicals in earthworms, offering insights into monitoring and remediation of toxins.
Children's consumption of sugar-sweetened beverages
A recent study published in Pediatrics found that sugar-sweetened beverages are an increasingly large part of children and teens' diets, with teens consuming an average of 356 calories per day. Reducing empty caloric intake by limiting these drinks may be a key strategy for promoting healthy eating and preventing excess weight gain.
Private foster care program leads to better long-term health
A private foster care program has been shown to significantly improve long-term health outcomes for teenagers placed in the program compared to those in public programs. The study found lower rates of mental disorders, ulcers, and cardiometabolic problems, but more respiratory disorders.
More girls than boys benefit from breastfeeding, Hopkins Children's research shows
Research by Johns Hopkins Children's Center suggests that breast-feeding not only provides more protection to girls than boys but also that formula-fed girls are at a higher risk for severe respiratory infections. Breast milk helps babies cope with an infection better, rather than preventing it.
Low vitamin D levels appear common in healthy children
A study of 380 healthy children found that nearly half had low vitamin D levels, and about one-third showed reduced bone mineral content on X-rays. The researchers suggest that all young children should receive vitamin D supplements to prevent potential health issues.
Knowing looks: Using gaze aversion to tell when children are learning
A study found that children aged 4-6 avert their gaze when performing difficult tasks or being tested by someone familiar. This finding has implications for teachers and social workers, who can use gaze aversion to identify 'improvers' versus those regressing.
Study findings show infection control intervention helps keep kids in school
A randomized controlled trial involving 285 students found that disinfecting surfaces and using hand sanitizer reduced gastrointestinal illness-related absences by nine percent. The study suggests that elementary schools consider simple infection control practices to help keep students healthier.
Study: Sad children out-perform happy children in attention-to-detail tasks
Researchers found that when attention to detail is required, sad children perform better than their happy peers. This finding contradicts the idea that happiness always leads to optimal outcomes. The study suggests that a positive mood can have hidden costs for certain tasks.
Astonomers find tiny planet orbiting tiny star
A team of astronomers led by David Bennett discovered a planet with a mass about three times that of Earth, orbiting a star with a mass 6% of the sun's, potentially hosting conditions suitable for life. The discovery was made using the gravitational microlensing method and confirms predictions made in 1996.
Injuries to high school baseball players becoming more serious
A new study found that high school baseball-related injuries have increased in severity over the past decade, with many resulting in head/face and teeth injuries, fractures, or concussions. The study recommends the use of helmets with face shields or mouth guards to reduce these types of injuries.
Metformin increases pathologic complete response rates in breast cancer patients with diabetes
Researchers found that metformin significantly increased pathologic complete response rates in diabetic women with early-stage breast cancer who took the drug during chemotherapy. The study showed a 24% response rate, three times higher than non-diabetic patients. Further investigation is needed to understand the mechanism of the drug.
Exposure therapy may help prevent post-traumatic stress disorder
A randomized controlled trial found that exposure therapy was more effective than cognitive restructuring in preventing PTSD in individuals with acute stress disorder. Exposure therapy reduced distress ratings and promoted full remission, suggesting its potential as an early intervention for high-risk patients.
Scientists demonstrate feasibility of preventing malaria parasite from becoming sexually mature
Researchers have found a way to prevent malaria parasites from becoming sexually mature, a crucial step in transmission. This breakthrough could lead to the development of new drugs targeting this stage of the life cycle, helping to control the spread of drug resistance.
Men fighting over women? It's nothing new, suggests research
A mass grave of skeletons in prehistoric Germany reveals that neighboring tribes were prepared to kill their male rivals to secure their women. The researchers found that the local group of skeletons had only men and children, indicating that the adult females were spared execution and captured instead.
Heart of the Crab Pulsar probed -- first direct look into the core of a neutron star
Researchers used LIGO data to analyze the Crab Pulsar, detecting signals that reveal no more than 4% of energy loss is due to gravitational radiation. The findings suggest other mechanisms, such as electromagnetic radiation and high-velocity particles, are responsible for the pulsar's slowing spin.
Toad research could leapfrog to new muscle model
Researchers are rethinking how muscles work by studying toads' rapid feeding actions. They've discovered that muscles behave like springs, allowing for efficient energy storage and release. This new model could lead to innovations in prosthetics, electric motors, and treatments for Parkinson's disease.
Drinking juice not associated with being overweight in children
A study of 3628 children aged 2-11 found that those who drank 100-percent juice had significantly higher intakes of essential nutrients like vitamins C and B6. In contrast, there was no link between juice consumption and weight status or the likelihood of being overweight.
Mouse model developed at UT Southwestern mimics hyperglycemia, aids in diabetes research
Researchers at UT Southwestern have developed a mouse model that mimics hyperglycemia and allows pancreatic beta-cell regeneration. The PANIC-ATTAC mouse model provides insights into improved treatments for type 1 and gestational diabetes, as well as temporary hyperglycemia.
Hip and knee replacement patients not receiving treatment to reduce blood clot risk
A recent study by McGill University Health Centre researchers found that only 19% of hip and knee replacement patients in Quebec received post-discharge antithrombotic treatment to prevent blood clots. This lack of treatment increases the risk of mortality for these patients, highlighting a need for improved care protocols.
Fewer than 1 in 5 patients receive treatment to prevent life-threatening blood clots
A retrospective cohort study of 10,000 patients aged 65 and older found that only 20% received thromboprophylaxis to prevent life-threatening venous thrombosis after discharge. Elderly patients have a 70% lower risk of dying within 3 months if they take an anticoagulant drug.
Adverse events in hospitals occur 3 times more among patients with communications problems
Researchers found that nearly 2400 patient records from 20 hospitals in Quebec revealed a significant correlation between communication problems and preventable adverse events. The study found that patients with comorbidities, psychiatric disorders, or multiple health issues were more likely to experience adverse events.
Complex dynamics underlie bark beetle eruptions
Researchers find that bark beetles' complex dynamics are influenced by tree spacing, local climate, and nearby conditions, leading to devastating forest outbreaks. Human activities like climate change can amplify these eruptions, causing significant economic losses and reducing forests' carbon absorption capabilities.
MIT confirms link between inflammation, cancer
Researchers at MIT have confirmed the long-suspected link between chronic inflammation and increased cancer risk. Chronic stomach inflammation damages DNA, which can lead to mutations that cause cancer. Individuals with poor DNA repair systems may be more susceptible to developing cancer associated with chronic inflammation.
LIGO observations probe the dynamics of the crab pulsar
The study reveals that no more than 4% of energy loss is caused by gravitational waves, disproving a key hypothesis. The analysis provides valuable information about the pulsar and its structure, shedding light on the role of gravitational waves in its dynamics.
Surgical conditions in Africa are given low priority despite causing death and disability
A study published in PLOS Medicine highlights the significant impact of surgical conditions on global health in Africa. The authors propose innovative strategies to improve access to essential surgical care, including donation programs and public-private partnerships.
New kidney protein speeds/improves the diagnosis of failing kidneys
Researchers have discovered a new kidney protein, NGAL, that can diagnose sudden kidney failure days sooner than current tests. A simple urine test for NGAL can help emergency department physicians accurately diagnose kidney failure and make evidence-based treatment decisions.
Discovery of new family of genetic mutations involved in inflammatory intestinal disease
Researchers discovered a new family of genetic mutations involved in inflammatory intestinal diseases, including coeliac disease and Crohn's disease. The study found common origins for the two diseases and identified eight new areas with genes controlling immune responses.
Weizmann Institute scientists develop a new approach to treating autoimmune disease
Researchers deliver genetically engineered T-reg cells to the intestine to suppress inflammation and autoimmunity. The 'bystander' effect enables these cells to target diseased tissue, suppressing inflammatory cells and promoting healing.
New method of managing risk in pregnancy leads to healthier newborns, better outcomes for moms
A new study from the University of Pennsylvania School of Medicine finds that a risk-based approach to labor induction can lead to healthier newborns and better birth outcomes for mothers. The Active Management of Risk in Pregnancy at Term (AMOR-IPAT) method reduces NICU admissions, cesarean rates, and mean Adverse Outcome Index scores.
People more likely to overestimate their credit quality
A study by Vanessa Gail Perry found that those who overestimated their credit ratings had lower incomes, less formal education, and were less likely to own their homes. People more likely to overestimate their credit quality tend to be minority consumers with less financial experience.
Kinship care more beneficial than foster care
A new study found that kinship care provides protective value in terms of well-being and stability for children in out-of-home care. Three years after placement, nearly two-thirds of children in kinship care were in long-lasting settings with family, compared to only a third in foster care.
Drinking polyphenol-rich Concord grape juice may improve memory in older adults
A pilot study showed that older adults with early memory decline who drank Concord grape juice daily experienced improved list learning and trends of short-term retention and spatial memory. The study, led by Robert Krikorian, found significant benefits in cognitive function.
Study examines risk factors for development of eating disorders
A study analyzing data from 6,916 girls and 5,618 boys found that risk factors for binge eating and purging vary between sexes and age groups. Frequent dieting and media pressure were key predictors of binge eating in females, while negative weight comments from fathers were linked to starting to binge eat in males.
Children who live with relatives may have fewer behavioral problems than those in foster care
A study of children who entered out-of-home care found that those placed with relatives had lower rates of behavioral problems three years later. Placement stability was also a key factor in achieving better outcomes for these children.
New model predicts whether patients will be free of renal cancer 12 years after initial treatment
A new nomogram model predicts the probability of renal cancer recurrence 12 years after initial treatment, using tumor and patient characteristics to maximize predictive accuracy. The model helps clinicians counsel patients and customize treatment recommendations for individual patients.
Weizmann Institute scientists find new 'quasiparticles'
Researchers at the Weizmann Institute have created 'quasiparticles' with a fraction of an electron's charge, which could enable powerful yet stable quantum computers. The discovery was made using an extremely precise setup and unique material properties.
Annals of Internal Medicine tip sheet for June 3, 2008
A database review of 101,832 critically ill patients found that ICU patients managed by critical care specialists had higher mortality rates. In contrast, a review of 66 trials on salmeterol added to inhaled corticosteroids for asthma did not alter the risk for asthma-related hospitalizations or deaths.
CCNY psychology professor develops new model for collaboration between clergy and clinicians
A new model, C.O.P.E., aims to reduce burdens on both professions by facilitating reciprocal collaboration between clinicians and members of the clergy. The approach recognizes mental illness as a chronic disease and provides a continuum of care, whether individuals are functional or in need of treatment.
Large study identifies most costly adverse events in children's hospitals
A large study of health records from 38 American children’s hospitals has measured adverse events that increase length of stay and overall cost. The researchers found that infections, respiratory failure following surgery, and postoperative sepsis are the most frequent adverse events.
USC researchers identify gene that regulates glucose levels
Researchers at USC identified a gene variant associated with fasting glucose levels, providing new insights into blood sugar regulation. The study found that genetic variation in the G6PC2 gene may be responsible for reducing insulin secretion and increasing glucose concentrations.
For barn swallows, feathers make the man, says CU-Boulder study
A new CU-Boulder study reveals that artificial darkening of a male North American barn swallow's breast feathers leads to an increase in testosterone levels, challenging the traditional view that physiology forms external features.
Friends by chance?
Researchers found that sitting in neighboring seats due to random seat assignments led to higher friendship intensity ratings one year later. This counterintuitive finding suggests that friendships may not be as deliberate as thought.
BP funds energy scholarships for K20 scholars
The University of Oklahoma's K20 Scholars program receives a $135,000 contribution from BP to support high school graduates pursuing energy-related degrees. The program offers four-year scholarships, service-learning projects, and research experiences, aiming to increase the number of students in science and engineering fields.
New treatment combination proves safe, effective for head and neck cancer patients
A phase II study found that adding cetuximab to chemotherapy improves response rates in head and neck cancer patients, with 86% of patients responding to induction treatment. The addition also led to significant tumor reduction and improved cancer-free survival rates over two years.
Unravelling the mystery of the kitty litter parasite in marine mammals
A study by California Polytechnic State University researchers has linked Toxoplasma gondii, a parasite typically associated with cats, to marine mammal deaths worldwide. The team discovered that northern anchovies may be spreading the parasite through the ocean's filter-feeding mechanism, posing a potential transmission risk to mammals.
Expressing feelings after trauma not necessary, research shows
Researchers found that individuals who chose not to express thoughts and emotions about traumatic events reported fewer diagnosed physical and mental disorders over time. The study suggests that a universal approach to trauma counseling may be unwarranted and could result in misappropriation of resources.
New data show patients using AVONEX reported less sick leave and short-term disability costs
A study analyzing US employer data found patients taking AVONEX reported significantly less sick leave, costs, and lost time compared to Copaxone. This suggests that AVONEX allows patients to maintain a normal lifestyle while reducing economic burdens on employers and healthcare insurers.
Long-term cannabis users may have structural brain abnormalities
Research found that long-term cannabis users may have structural brain abnormalities, with the hippocampus and amygdala being affected. The study suggests heavy daily use of cannabis might be toxic to human brain tissue, highlighting the need for further research.
Study finds circumcision safe in both HIV-infected and HIV-uninfected men
A new study published in PLOS Medicine has found that circumcision is safe for both HIV-infected and HIV-uninfected men, with a low risk of moderate or severe surgical complications. The study also highlights the importance of refraining from intercourse after circumcision to prevent transmission of HIV to women partners.
Report confirms increased risk of smoking, substance abuse in bipolar adolescents
A study confirms that bipolar adolescents face a significant risk of smoking and substance abuse, with rates of 34% in the bipolar group compared to 4% in controls. Early preventive measures and screening are essential for this high-risk population.
A genetic marker for nearsightedness? Update on vitamins and AMD
A new study found strong evidence for a genetic marker on chromosome 5 linked to nearsightedness, which explains 80% of axial length variations. The research also highlights the importance of using vitamins and minerals correctly to prevent AMD vision loss in patients.
Waiting room gadget may prove to be a life-saver
Researchers at Nationwide Children's Hospital developed a computerized behavioral screening system called Health eTouch, which found that adolescents who received immediate results were more likely to be identified as having problems by their pediatrician, with 68% vs. 52% for delayed results
More than sunblock required to protect kids while mowing lawns
The American Society of Plastic Surgeons, along with medical societies, warns that children should be at least 12 years old to operate lawn mowers and wear protective gear. Serious injuries from lawn mower accidents can lead to devastating consequences, including reconstructive surgeries.
New barn swallow study reveals image makes the bird
A new study by Arizona State University researchers found that artificially coloring the breast feathers of male barn swallows increased their testosterone levels, challenging the traditional view that internal processes determine external features. The study suggests a dynamic system where physical appearance affects physiology.
Researchers identify proteins making up mechanosensitive ion channels
Scientists have identified two proteins, MSL9 and MSL10, responsible for mechanosensitive ion channel activities in plant roots. These proteins govern the flow of ions into and out of the cell in response to mechanical forces like gravity or pressure. The discovery sheds light on how plants respond to physical forces.
Cold Spring Harbor Protocols features methods for analyzing genomes and plant cells
The journal features two new methods: one for detecting copy number variation in genomes using PennCNV software, and another for studying ion differences across membranes in plant cells using patch clamping. These techniques provide a more comprehensive understanding of genome variation and cellular responses.
Improved foster care reduces risk of adult mental and physical illness, study finds
A study by Harvard Medical School found that foster care programs with high-quality services and low caseloads significantly reduced rates of major depression, substance use disorders, and physical health issues among adult alumni. The results show a 50% reduction in rates compared to public system alumni.
OHSU Cancer Institute finds that drug stimulated immune system in prostate cancer
Researchers at OHSU Cancer Institute found that Ipilimumab effectively stimulates the immune system to fight prostate cancer, particularly in patients with resistant tumors. The drug works by blocking CTLA-4, releasing the safety brake and allowing the immune response to have a stronger anti-tumor effect.