A team of Cornell University researchers discovered that beetle pupae can create hundreds of deterrent compounds using combinatorial chemistry. The pupae secrete these complex chemicals through microscopic body hairs, thwarting most predators and ensuring their survival in the field.
Researchers at Purdue are testing the effectiveness of golf courses in filtering surface water and studying urban environmental issues. The course is also being used to investigate various creeping bentgrass cultivars and methods to control annual bluegrass, with goals including reducing transplant shock in newly planted trees.
A new study found that narcissists are more likely to become aggressive when they receive negative feedback, but not when they receive praise. The researchers suggest that this is because narcissists are emotionally invested in establishing their superiority and view criticism as a personal threat.
A new study analyzing hate crime data from New York City from 1987 to 1995 found no statistical link between economic fluctuations and rates of hate crimes. The researchers suggest two reasons for this lack of correlation: the decay of aggressive impulses over time, and the role of political leaders in framing economic grievances.
A new study found that patients with tumors expressing low levels of the tumor suppressor protein p21 are more likely to recur and die from bladder cancer than those with elevated p21 levels. The study suggests that knowing both p53 and p21 status is a more powerful indicator of risk, allowing for clearer treatment decisions.
A team of astronomers detected a population of distant, dusty galaxies forming stars at rates 10-100 times higher than most optical sources. The discovery suggests that much of the star formation in the distant Universe may be hidden to visual observations, requiring a combination of both optical and submillimeter observations.
Researchers created a computer simulation to help robots learn by imitation, using virtual android Adonis to teach the macarena dance. The system demonstrates that imitation can make robots more flexible and effective in learning any task.
The electronic tongue is designed to detect different elements of taste, including sweet, sour, salt, and bitter. The device uses four well-known chemical sensors attached to minute beads placed on a silicon wafer, allowing it to analyse for several different chemical components simultaneously.
The TEMPUS furnace, used on NASA's Microgravity Sciences Laboratory-1 mission in 1998, has demonstrated its value by making repeat measurements that matched very closely with one another. Scientists are now analyzing the data to correct surface tension measurements and make the first-ever reliable viscosity measurements.
Researchers used neutron tunneling to study magnetic properties of thin iron films, discovering a sensitive tool for exploring surfaces. The phenomenon shows promise for studying subtle magnetic phenomena in technological materials.
A team led by Cappy Rothman has successfully used sperm from a dead man to establish a pregnancy. The woman is now one month pregnant after being injected with eggs harvested from the deceased man's wife. Bioethicist Arthur Caplan fears that regulations are lagging behind technical advances in posthumous reproduction.
The Deutsche Forschungsgemeinschaft (DFG) is funding four new research units exploring various scientific topics. These units will investigate the development of better implants, tools for effective small-scale farm management, and the study of arithmetic and its relations to other mathematical fields.
The report shows a decline in infant mortality, high blood lead levels, and child poverty. More children are being read to, participating in early childhood education, and improving their math scores. However, substance abuse, cigarette smoking, and youth violence remain concerns.
A study of over 2,000 American women who underwent medical abortion with mifepristone and misoprostol found that the method was highly effective and satisfactory, even among those for whom it failed. Women preferred the non-invasive nature and natural experience of the method, and reported few side effects.
Plant cells respond to fungal invasion by generating reactive oxygen intermediates, ion fluxes, and changes in gene activity. Gentle mechanical stimulation mimics this effect, suggesting physical contact is sufficient for triggering the defense response.
The DFG's new programme aims to promote the independence of young scientists by providing funding for research work abroad and independent research at German universities. It targets especially qualified young scientists and will handle 100 new grants per year, with up to DM 120 million in funding.
Researchers successfully wiped out 20 square kilometers of water hyacinth in the Sepik River, reducing infestations from 27 square kilometers to just seven over five years. The use of biological control agents like weevils was a key factor in this achievement.
A Duke University Medical Center study found that biological differences and later diagnosis contribute to the disparity in survival between black and white prostate cancer patients. The study surveyed 231 men from North Carolina and ruled out unequal treatment as the root cause of the higher mortality rate among blacks.
The institution has trained nearly 300 fishermen and helped them establish businesses in hard clam aquaculture. Graduates receive state-owned land leases, equipment, and seed to support their operations.
A new spray-on treatment has reduced 'albedo breakdown', a condition causing unsightly puffiness in oranges, by up to 20-25% in Australian orange crops. The treatment uses mineral calcium to address the issue, which can significantly impact fruit value and quality.
A Johns Hopkins study has found that depression is an independent risk factor for coronary artery disease in men, with those experiencing clinical depression twice as likely to develop the condition. Symptoms of CAD appeared on average 15 years after the first episode of depression.
Conjugated linoleic acid (CLA) has been shown to reduce atherosclerosis in cholesterol-fed rabbits, eliminating some fat already present. The Wistar Institute, established in 1892, is making history through its development of vaccines and discovery of molecules helping the immune system fight diseases.
A study by pediatricians from Wake Forest University found that gay teenage boys with multiple male partners are more likely to experience violence, drug abuse, and absence from school. The researchers suggest that clinicians can apply these findings to provide targeted support for these adolescents.
Researchers analyzed data from over 72,000 screening mammograms to show a steady increase in cancer detection across all ages, with no abrupt jump at 50. The study challenges previous conclusions that suggested an age-related change in mammography's effectiveness, supporting the continued use of screening for women aged 40-49.
Researchers from the Max Planck Institute for Chemistry studied the stability of materials relevant to the lower mantle under very high pressures and temperatures. Their findings indicate that partial melting is more likely than previously thought to explain seismic anomalies in this region.
Adolescents born to US-born parents show poorer health and riskier behavior compared to foreign-born youth. Foreign-born teens have better physical health and are less likely to engage in delinquent or violent acts.
Materials scientists will use microgravity conditions to study material formation and behavior, producing high-value products. The U.S. Laboratory Module will house three Materials Science Research Racks, with each rack capable of conducting various experiments.
Researchers at the University of Delaware developed a new technique to produce extremely thin alumina films with an electrical storage capacity three times greater than silicon dioxide. These films could potentially eliminate reliability problems in semiconducting circuits by storing more electricity and reducing current-blocking flaws.
Researchers found that praising children for their intelligence can lead them to believe good test scores are more important than learning and mastering new things. In contrast, praising effort leads to a focus on learning goals and strategies for achievement.
Scientists have identified a powerful combination of heat shock proteins that can restore aggregated proteins to their functional states. The Hsp104-Hsp40-Hsp70 trio helps stabilize proteins during aggregation and refolding, providing essential protection against denaturation and promoting cell survival.
A team of scientists found a shared genetic marker among Jewish priests, linking them to the Biblical high priest Aaron and confirming ancestral ties between Sephardi and Ashkenazi communities. The study estimated the most recent common ancestor lived between Exodus and Temple destruction around 586 B.C.E.
The research proposes that cosmic ray jets can cause lethal amounts of muons, destroying the ozone layer and creating new species through rapid mutations. The theory explains key characteristics of massive extinctions and suggests ways to gather evidence for past catastrophes.
A nationwide study by the University of Florida suggests that women scientists and engineers struggle to balance their careers with family responsibilities. The survey found that 62% considered work-life balance their biggest challenge, while conflicts between tenure and biological clocks were a major concern for many.
Researchers Mark Young and Trevor Douglas have created a 'molecular cooking pot' using the protein case of a virus, enabling precise delivery of drugs to specific cellular addresses. The discovery has far-reaching implications for medicine, including breast cancer treatment.
A new laboratory tool has been developed by UNC-CH researchers to study the interaction between normal and abnormal heart cells during heart attacks. The tool, which simulates the conditions of a heart attack, aims to reduce death rates from sudden cardiac deaths in the US.
Researchers discovered a new gene called double-time that regulates circadian rhythms in fruit flies, which may also influence human sleep patterns. The gene affects the pairing of proteins essential for maintaining daily cycles.
Researchers at Georgia Tech discovered a way to reduce friction in mechanical systems by rapidly oscillating the width of the lubricant-filled gap separating two sliding surfaces. This technique maintains disorder in the lubricant, preventing molecular layering that can increase friction.
The UT Southwestern pediatric laboratory now has a Time-of-Flight mass spectrometer, allowing for local analysis of chemotherapeutic drugs and other substances. This technology aids in identifying molecular minutiae, potentially resolving side effects such as fatigue and cognitive problems associated with chemotherapy.
Research on Nicotiana attenuata reveals that induced defenses can have both ecological benefits and costs, including resource-based costs and potential negative impacts on seed production. The discovery of endogenous wound signals, such as jasmonic acid, has provided tools to activate defenses independently of herbivore attack.
A review of Occupational Safety and Health Administration (OSHA) enforcement strategies concludes that current efforts are too slow and uncertain, leading to inadequate protection for workers. The authors suggest innovations such as worker education programs and devolving enforcement powers could improve safety further.
The conference will bring together over 100 principal investigators to discuss recent microgravity materials science research, including results from the Microgravity Sciences Laboratory-1 (MSL-1) mission. Researchers will also preview plans for the International Space Station and its Materials Science Research Facility.
A new study finds that unequal income distribution in US metropolitan areas is associated with a significant increase in mortality rates, exceeding the combined loss of life from several major causes. The research suggests that reducing economic inequalities should be a high priority to mitigate this burden.
Researchers at UT Southwestern Medical Center found that walking during the first stage of labor had no impact on labor duration, pain management, or infant outcomes. Women who walked showed similar results to those who rested in bed, with most indicating they would walk again in future labors.
A new University of Michigan study reveals that areas with high income inequality and low average incomes have significantly higher mortality rates, comparable to the combined loss of life from various diseases. The findings highlight the importance of considering equitable income distribution in public health assessments.
Astronomers detected a series of at least 26 starquakes, leading to the discovery of SGR 1627-41, the fourth conclusively identified SGR. The new SGR is believed to be caused by massive starquakes and has been linked to a supernova remnant.
Phytoplankton, tiny marine plants and bacteria, have evolved to stabilize the Earth's atmosphere by regulating atmospheric carbon dioxide levels. They convert sunlight into oxygen and sequester carbon deep in the ocean, influencing climate regulation.
A new study at UNC-CH aims to help low-income black mothers cope with HIV by providing home visits, counseling, and teaching. The program has shown promising results in improving women's understanding of the disease and their mental health.
A study has found that methylotrophic bacteria and methanogenic archaea share common central carbon metabolism pathways involving C1 transfer reactions. These findings have implications for understanding the evolutionary history of these pathways in all organisms.
Researchers discovered lithium's dual anti-manic/anti-depressive effect by finding it stabilizes glutamate levels in mice brains, bringing them within a stable zone. This results in controlling both extremes of mania and depression in bipolar disorder patients.
Researchers at Johns Hopkins University are investigating the effectiveness of river-bank filtration in removing harmful viruses, protozoa, and bacteria from drinking water. The study aims to determine if this natural filter can produce cleaner drinking water while minimizing the creation of toxic by-products.
A new University of North Carolina at Chapel Hill study found six young football players died in the 1997 season as a direct result of injuries suffered on the field. The study also revealed seven cases of permanent paralysis from neck injuries and permanently disabling head injuries.
Researchers at Kansas State University have identified a protein called PR-39 that can suppress the production of toxic oxygen metabolites involved in reperfusion injury. The substance may hold promise as an anti-inflammatory fighter, potentially preventing tissue damage associated with blocked blood vessels.
The Lupus Foundation of America has awarded a summer internship to Yale student Su-jean Seo, who is conducting research on antigens targeted in autoimmune diseases like lupus erythematosus at the Wistar Institute. The fellowship will support her work under the supervision of Dr. Jan Erikson.
Researchers at Oregon Health & Science University have found that treatment with sodium thiosulfate significantly reduces hearing loss in brain tumor patients receiving carboplatin chemotherapy. This breakthrough could help combat the hearing loss associated with platinum-based chemotherapy treatment for other types of cancer.
University of Munich and University of Delaware researchers have developed technology to probe artificial molecules, enabling the observation of Rabi oscillations. This breakthrough may help overcome technological hurdles associated with artificial molecules and pave the way for new computing strategies.
A study by Johns Hopkins researchers found that medical regionalization in Maryland decreased the death rates for patients undergoing a complex pancreaticoduodenectomy operation for pancreatic cancer. The study showed that regionalization resulted in a significant reduction in mortality rates, with an estimated 57 patient lives saved.
Caroline Sokol, a researcher at The Wistar Institute, has been awarded the Goldie Simon Preceptorship Award for her work on autoreactive B-cells in systemic lupus erythematosus. She aims to earn a joint M.D./Ph.D. to conduct clinical research and improve understanding of the chronic autoimmune disease.
Andrew Caton, a Wistar Institute scientist, will receive the Lupus Foundation of Philadelphia's prestigious Sheryl N. Hirsch Award for his work on systemic lupus erythematosus. The award recognizes Dr. Caton's efforts to shed light on the role of infections in lupus initiation and exacerbation.
Researchers analyzed 19 samples of honey from 14 different floral sources and found that dark buckwheat honey packs 20 times the antioxidant punch as California sage honey. Darker honey has less water and more antioxidants than light-colored honey, making it a potential supplemental source for antioxidants.
A new study found that the biggest factor in student cheating is the instructor, with tenured or tenure-track faculty reducing cheating. Professors can reduce cheating by offering multiple exam versions, giving verbal warnings, and using additional proctors, making students 25-13-11 percent less likely to cheat.