A Harvard University study found that high school AP courses do not contribute substantially to student success in college. Mathematical fluency is the single best predictor of college performance in biology, chemistry, and physics, with depth over breadth coursework performing better in college courses.
A recent study published in the Journal of General Internal Medicine found that nearly 10 million more adults have high LDL-C (
A recent study found that frequent verbal harassment in middle school is associated with a three-fold increase in alcohol use during high school. The researchers also discovered that peer harassment fuels aggression and antisocial behaviors among boys, particularly those who experience both verbal and physical harassment.
The American Physiological Society's Frontiers in Physiology program brings science education into classrooms, modernizing teaching methods. Teachers learn research techniques and education strategies to enhance student learning.
A study by the University of Iowa found that 37% of high schools have defibrillators, but surprisingly, cardiac arrests are relatively uncommon in these schools, with a rate of about 2 percent per year. In contrast, senior centers had higher rates of cardiac arrests, with only 10% having defibrillators.
A study of over 4,000 women found that taking high doses of acetaminophen and ibuprofen may increase the risk of developing high blood pressure. Women taking these painkillers were more likely to develop hypertension compared to those who didn't use them.
A study by Dr. Mihai Covasa and colleagues found that a high-fat diet can reduce the body's sensitivity to cholecystokinin, a hormone that helps regulate appetite, in rats. This reduced sensitivity leads to increased overconsumption of highly palatable foods high in dietary fat.
A study by the Framingham Heart Study found that despite increasing rates of high blood pressure with age, treatment rates for older adults remain low. Seventy-four percent of people aged 80 and older have high blood pressure, but only a minority receive treatment.
Researchers found that hospitals performing over 10 cystectomies per year had statistically significant lower mortality and morbidity rates. Additionally, hospitals with a high nurse-to-patient ratio reduced post-operative mortality by more than 50 percent regardless of the hospital's cystectomy volume.
The NIH is funding eleven High-End Instrumentation grants, worth nearly $18 million, to support the purchase of new state-of-the-art equipment. These instruments will enable researchers to accelerate their studies into the underlying mechanisms of disease.
A recent study published in Archives of Internal Medicine found diuretics to be equally protective against fatal coronary heart disease or non-fatal heart attacks among people with diabetes. Additionally, diuretics were shown to be more effective in lowering systolic blood pressure and reducing the risk of congestive heart failure.
Research suggests high school start times deprive teens of sleep, affecting cognitive performance and mood. Students perform better in the afternoon, but early morning classes report being wearier and less alert.
Research found that MRI was nearly twice as sensitive as X-ray mammography in detecting breast cancer in high-risk women. Combining both methods increased detection to 94%. Women with the BRCA1 gene mutation saw a significant boost in tumor detection, making MRI an effective screening tool.
Patients with a personal or family history of melanoma exhibit similar sunbathing patterns and protective measures to low-risk populations, highlighting the need for improved education and awareness campaigns.
A new study reveals that mice with an excess of liver X receptor (LXRa) are protected from high-fat diet-induced cholesterol and blood vessel plaques. The findings suggest that natural variation in LXRa levels can influence susceptibility to heart disease, depending on diet.
The ALLHAT study found that diuretics are superior to calcium channel blockers and ACE inhibitors in lowering blood pressure and preventing heart failure. Diuretics were also more effective in reducing high blood pressure and stroke in black patients, supporting the use of diuretics as first-line therapy for high blood pressure
Research found that children of mothers with preeclampsia have higher systolic pulmonary artery pressure, linked to re-entry altitude sickness and potential long-term health risks. The study suggests new ways to prevent and treat primary pulmonary hypertension.
A Boston University team found an association between naturally high levels of blood cholesterol and improved mental functioning, including visual organization, memory, attention, and concentration. However, the benefits were modest and did not outweigh the risks of heart disease and stroke associated with high cholesterol.
Researchers have discovered that a compound called HPMC, commonly used as an additive in foods and drugs, may help prevent diabetes in people who frequently consume high-fat fast foods. The compound works by regulating metabolic genes and slowing down the absorption of fats, potentially reducing the risk of developing insulin resistance.
A study by the University of Washington found that more than half of high school seniors (56%) were employed in the spring of their final year, mostly in minimum-wage jobs. These students often worked long hours and for low pay, which can impact their ability to balance work and academic responsibilities.
A large-scale study shows that flu vaccination is highly effective in reducing severe end points such as deaths and hospitalizations among high-risk persons of working age. The vaccine benefits people of any age with high-risk medical conditions, not just the elderly.
The global prevalence of high blood pressure is expected to increase from a quarter to a third by 2025, totaling over 1 billion adults. Developing countries are projected to bear the brunt of this increase, with three-quarters of the world's population with high blood pressure in these regions.
Researchers at Idaho National Laboratory have achieved a major advancement in producing hydrogen from water using high-temperature electrolysis, enhancing efficiency to 45-50%. This technology has the potential to reduce greenhouse gas emissions and fossil fuel consumption.
An international trial found that breast MRI significantly detected more cancers than mammography in high-risk young women with dense breast tissue. The study recommended MRI as a supplement to mammography for this group, improving cancer detection and potentially reducing mortality rates.
A new study published in the Journal of Cardiovascular Electrophysiology suggests that rapid ventricular pacing is a key factor in developing heart failure. The research found that goats subjected to high atrial and ventricular rates developed end-stage CHF, while those with low ventricular rates remained healthy.
A new study reveals that patients with asthma experiencing high variability in disease symptoms incur greater direct and indirect costs, including hospitalizations, emergency visits, and lost productivity. High variability patients also report more frequent unscheduled doctor visits and asthma interrupts daily activities more often.
A new study by Johns Hopkins Medicine suggests that high-dose vitamin E supplements may increase the risk of death. The study analyzed data from 19 major clinical trials and found a significant association between high-dose vitamin E use and increased mortality rates.
Recent animal studies suggest that high-fat diets can impair memory and cognitive function, increasing the risk of age-related cognitive impairment. Diets rich in saturated fats and sugar may worsen cognitive losses due to stress and sleep apnea.
A randomized trial of 605 patients with four or more positive lymph nodes found no difference in 5-year relapse-free survival and overall survival between conventional and high-dose chemotherapy. High-dose chemotherapy was shown to confer extra cost and toxicity without added anticancer benefit.
The American Physiological Society (APS) has announced the winners of its annual awards for high school students conducting research in physiology. The four award winners are Allison Landstrom, Samuel Finlayson, John Luo, and Jason Pellegrino, who studied various aspects of glucose homeostasis and lung function.
The updated report recommends lower LDL cholesterol levels as a direct relationship with reduced risk for major coronary events. Therapeutic lifestyle changes are also emphasized for cholesterol management.
A recent study found that nearly half of adults with hypertension also have high cholesterol, which can be treated with existing medications. However, many individuals are not receiving adequate treatment for their cholesterol problems, highlighting the need for aggressive management of both conditions to prevent cardiovascular disease.
Researchers found that high school students, both athletes and non-athletes, use anabolic steroids and body-shaping drugs regularly. Students with a higher grade-point average tend to use less drugs, while those with lower GPAs are more likely to use these substances.
A new study found that infection with a high-risk type of human papillomavirus (HPV) in oral epithelial cells may be an independent risk factor for head and neck cancer. High-risk HPV types detected in oral exfoliated cells were predictive of high-risk HPV types in tumor tissue.
Researchers found a strong correlation between obesity and high blood pressure in children aged 8-17. The prevalence of high blood pressure increased by 4.2% among overweight children, 3.5% among obese children, and 2.6% among normal-weight children over 10 years.
A study analyzing physician office data and pharmacy surveys found that the cost of high blood pressure therapy increased by $12 billion between 1990 and 2002. The primary contributors to this increase were higher prices for expensive ACE-inhibitors and ARBs, as well as a decline in diuretic prescriptions.
A recent study found that high-dose vitamin therapy had no effect on preventing recurrent strokes and heart attacks. The VISP study involved 3,680 adults who received either a low or high dose of folic acid, B6, and B12 vitamins.
The Lehigh group achieved breakthroughs in near-infrared-range (1300-nm) InGaAsN quantum well lasers using metalorganic chemical vapor deposition (MOCVD). Their findings have the potential to lead to the production of low-cost and high-performance 1300-nm VCSELs capable of a transmission rate of 10 GB per second.
A new study published in the Journal of Clinical Oncology found that low-dose interferon therapy did not extend overall or recurrence-free survival in high-risk melanoma patients. The trial involved 674 patients and found that both groups experienced similar rates of disease recurrence and mortality.
Researchers analyzed data from 18 states and found that high-volume hospitals for Subarachnoid Hemorrhage (SAH) cases have significantly lower mortality rates. The study suggests that centralizing treatment in these high volume centers may improve patient survival.
High doses of radiation therapy directed at the prostate significantly impact cancer control in high-risk patients. The major site of treatment failure is the prostate, highlighting the importance of high doses in this group.
Studies found that people with high-normal blood pressure already have signs of target organ damage and are at increased risk for cardiovascular death. Potassium intake was also shown to reduce the size of a stroke in an animal study.
Researchers found that people with high blood pressure have reduced blood flow to the brain compared to those with normal blood pressure, leading to slightly worse scores on memory tests. This vascular remodeling may explain why some individuals experience subtle differences in mental tasks.
The University of California - San Diego has received a $1.8 million grant from the NSF to develop an experimental grid infrastructure, known as FWGrid. The project will enable innovative next-generation systems and applications with high-speed wireless, wired, computing, and data capabilities.
Beardsley's dedication to innovative teaching methods and extracurricular programs has significantly impacted her students' enthusiasm for chemistry. Her achievements have been acknowledged by the American Chemical Society, which presents its High School Chemistry Teaching Award annually.
A study of 448 children in New York Head Start preschool programs found that those with high cholesterol at ages 3 and 4 were more likely to have high cholesterol five years later. The study suggests that early intervention and primary prevention can be effective in reducing the risk of coronary heart disease.
A University of Pittsburgh Medical Center study found that high school athletes recover from concussion slower than age-matched college athletes. High school athletes showed significant memory impairment at day 7 post-injury, while college athletes displayed commensurate performance with control subjects by day 3.
A study conducted at Mt. Everest found that acetaminophen was as effective as ibuprofen in treating high-altitude headaches, with both medications providing similar levels of pain relief and reduced nausea. The results suggest that acetaminophen could be a safer alternative for patients suffering from high-altitude headache.
High levels of AIB1 expression in breast cancer tumors are associated with poorer tamoxifen treatment outcomes. Patients with both high AIB1 and HER-2 expression have significantly worse disease-free survival compared to other patient groups.
A study found that approximately 13% of elderly individuals had high iron stores, while those consuming more fruit and whole grains had lower risks. The study suggests that a typical Western diet and unsupervised iron supplements may increase the risk of developing chronic disease.
A study of 774 older men found that high hostility was associated with a higher risk of coronary heart disease, independent of other risk factors like high cholesterol. The study suggests that mental health interventions may be effective in reducing the risk of CHD for individuals with high hostility levels.
The Virginia Tech photonics center is developing single-crystal sapphire-based sensors for IGCC plants, which can operate reliably in high temperatures and corrosive environments. The project aims to improve the thermal efficiency of IGCC plants and reduce carbon dioxide emissions.
Mathematical theory explains how high dose/refuge strategy works, allowing farmers to protect crops in refuges. The analysis leads to unexpected results, including minimal impact of insecticides on refuge value for some Bt crops and pests.
The new recommendations aim to lower average systolic blood pressure among Americans by 5 mmHg, resulting in a 14% drop in stroke deaths and 7% overall mortality. Proven behavioral changes such as regular physical activity, weight loss, and dietary potassium intake can also significantly lower blood pressure.
Researchers have developed a new radioimmunotherapy cancer treatment that has shown significant promise in treating mantle cell lymphoma. The study found that high-dose therapy resulted in complete remission for seven of eight patients, compared to only one of four with low-dose therapy.
Nancy Treasure, a chemistry teacher at Layton High School in Utah, has been recognized with the American Chemical Society Regional Award in High School Chemistry Teaching. She is known for her ability to tailor instruction to all ability levels, resulting in an advanced placement pass rate of 80-85 percent.
The study found significant variations in cancer prevalence across European countries, with high rates in Sweden, Switzerland, and Germany, and low rates in Poland, Estonia, Slovakia, and Slovenia. The research team suggests that cancer prevalence is closely linked to economic development and survival rates.
A study by researchers at Indiana University found that self-esteem plays a significant role in the loss of virginity among adolescents. Young girls with high self-esteem were less likely to engage in early sexual activity, while young boys with high self-esteem were more likely to report being sexually active.
Researchers found that high protein diets led to decreased hydration levels and abnormal kidney function tests. The study suggests that athletes and non-athletes alike should increase fluid intake when consuming high protein diets.
A UCSF study found that radiologists who interpreted a high volume of mammograms were more accurate in detecting cancer. High volume readers had higher sensitivity and accuracy rates compared to low volume readers, suggesting that fewer biopsies are needed to find cancers.