The study confirms the existence of an Edomite state before the 8th century B.C. and demonstrates two major phases of copper production in the region. The discovery of massive fortifications, over 100 building complexes, and Egyptian scarabs provide strong evidence for metal-working activities.
Researchers found that adding serum sodium to the MELD score significantly increases its accuracy in predicting short-term mortality among liver transplant patients with advanced cirrhosis. The study showed that hyponatremia was a more accurate marker of poor outcome than serum creatinine.
Elizabeth Kessler's research examines how aesthetics influences the presentation of Hubble Space Telescope images, balancing art and science to evoke awe and wonder. Her study reveals how subjective choices in image processing create complex representations of the cosmos that fit within a Romantic landscape tradition.
A massive gamma-ray flare from a magnetar was detected by the RHESSI satellite, emitting as much energy in two-tenths of a second as the sun gives off in 250,000 years. The event's immense power suggests a solution to the origins of short-duration gamma ray bursts.
Women with acute coronary syndrome are being prescribed aspirin, beta-blockers, and statins as frequently as men, according to a recent study. However, significant disparities remain in the use of lipid-lowering medications, with women living significantly longer after their hospitalization.
A new strand of research applies the principle of self-organization to linguistics, suggesting that languages follow a pattern of tendencies rather than universal grammar. The study involves computer simulations where computers develop a common vocabulary and recognize sounds, eventually creating homophones in context.
Researchers are exploring alternative explanations for dark energy, including the possibility of modified gravity laws and a multiverse. String theory suggests that the value of the cosmological constant may be very small, while another speaker proposes using
Research suggests that adding meat, milk, or energy-rich vegetable oils to cereal-based diets can improve iron, zinc, and vitamin B-12 intake in poor children. Biofortification of crops is also a possibility, but more research is needed to determine its impact.
The partnership aims to utilize NASA satellite data to help manage forest resources in Acadia National Park. NPS and NASA will share information and collaborate on training, technical support, and education to benefit each other's goals.
The Internet has led to a renaissance in informal writing, with online diaries and blogs increasing expressive range. Professor Crystal argues that concerns about language deterioration are misplaced, as new technology has increased informality in writing.
A study by Eliesh O'Neil Lane explores the roles of IRB members and how to improve the decision-making process. The composition of IRBs affects the types of issues discussed during reviews, with defined roles needed for scientists, non-scientists, and nonaffiliated members.
University of Pennsylvania astrophysicist Licia Verde outlines a multi-disciplinary approach to studying dark energy. The investigation draws on data from galaxy surveys, supernovae, and the Cosmic Microwave Background, providing clues about this enigmatic component.
Dark energy drives universe expansion, but its effects are complex and not fully understood. String theory offers a potential explanation, suggesting the existence of 'pocket universes' with distinct physical laws.
Research reveals that female sex hormones, particularly estradiol, play a crucial role in defense against sexually transmitted diseases. Estradiol-treated mice showed 100% protection from herpes virus infection, while those with progesterone or no hormone showed extensive infection and increased inflammation.
Research suggests Arctic sea ice is shrinking, contradicting current climate models. Mountain glaciers are also losing mass due to temperature changes, raising concerns about sea level rise.
Researchers warn that economic models of climate change often neglect potential threshold responses, leading to biased policies. The development of observation systems that can detect early warning signals about these events could improve climate policies and have significant economic benefits.
Researchers at Perlegen and Calit2 have developed a method to analyze whole-genome data, making it possible for genome-wide association studies to be performed on a reduced budget. The study reveals that most functional human genetic variation is not population-specific, with only 18% of SNPs segregating in one population sample.
Dvali suggests extra dimensions allow gravitons to escape, altering space-time continuum and accelerating cosmic expansion. This theory predicts observable deviations at shorter distances than predicted by modified gravity hypothesis.
A 12-week Tai Chi exercise program showed high completion rates and health benefits among 27 Chinese women with cardiovascular risk factors. The program's success was attributed to cultural relevance, accessibility, and the Yang Style of Tai Chi.
Neurobiologist William H. Calvin argues that bigger brain size didn't lead to general intelligence improvements in human evolution. However, after a significant burst of creativity around 75,000 years ago, humans made rapid advancements in complex tasks like art and language.
The US Constitution offers a set of shared values that can help frame the debate on genetic engineering of humans, including promotion of welfare, science, and equal protection. Policymakers will likely debate the benefits and potential harm to future children and the public.
Researchers developed an automated, personalized assistance system that monitors users' query patterns and provides help in finding needed information. The system achieved a 54% implementation rate among college students, outperforming passive help systems.
A recent survey of UK scientists suggests a link between success and encouragement, with women performing better than men in some areas. The UK is working to improve these numbers through initiatives like the Athena Project, which aims to promote women's careers in science, engineering, and technology.
A recent meta-analysis of 200 surveys found little cross-cultural variation in public perception of science, highlighting the need for coherent theories to explain public attitudes. The study also explored differences in how diverse cultures regard science, with Americans showing a lack of understanding and acceptance of new technologies.
Researchers suggest introducing a new species to balance ecosystem health and mitigate the risk of farmed fish escapes. Dr. Ian Fleming argues that this could be a solution to limit ecological impact.
The Caries Assessment and Risk Evaluation (CARE) test measures saliva's oligosaccharides to predict future cavity history with 98% confidence. The test identifies children at risk, allowing for preventive measures to be taken.
The study found that EGCG protected fatty livers from cell damage after I/R injury, reducing necrosis and increasing viable tissue. It also reduced liver fat content by approximately 55 percent and increased hepatic energy stores.
A new study by Scripps Institution uses computer models and real-world data to capture signals of human-produced warming in the oceans. The results show that the warming is likely caused by human activities, with a high degree of confidence exceeding 95%. This finding has significant implications for regional water supplies, including ...
A study led by The Wistar Institute discovered that the enzyme Ubp10 plays a crucial role in protecting the genome's telomeric regions from destabilization. This protection may help prevent genetic recombinations that can trigger cancer or accelerate aging.
Researchers at Whitehead Institute discover mTOR/rictor complex, a crucial component in Akt's activation process. This finding holds promise for developing targeted cancer therapies by blocking the complex and preventing tumor growth.
The UK has created several programs to recruit, retain and promote women in science, engineering and technology. The programs will feature opportunities for study abroad, research, investment and trade with the UK.
A two-year pilot scheme to offer free Chlamydia trachomatis testing in UK pharmacies aims to combat rising infection rates. However, concerns surround adequate training for pharmacists and the provision of follow-up care for those testing positive.
A new study found that Whitehall departments continue to prioritize devolved nations, leaving England with unclear territorial boundaries. The researchers suggest that a lack of cultural changes and misunderstandings have contributed to these issues.
Researchers have re-dated the Omo hominids fossils to approximately 196,000 years old, nearly 40,000 years older than previously thought. The discovery provides new insights into early human evolution and migration patterns.
Researchers have discovered a potential link between protease inhibitor drugs and heart rhythm irregularities in HIV patients. The study, published in The Lancet, found that certain drug combinations could trigger adverse heart effects, highlighting the need for closer monitoring of vulnerable individuals.
Researchers have developed stem-cell generated natural tissue implants that retain their shape and size over time, avoiding issues like implant rupture or cancer detection interference. This approach could eliminate the need for extensive surgery and provide a more natural-looking solution for reconstructive surgeries.
Researchers found that adding a vaccine targeting the Philadelphia chromosome protein can reduce residual disease and increase molecular response in patients with chronic myeloid leukaemia. The vaccine was shown to be effective in combination with imatinib and interferon alfa treatments.
Researchers at Cornell University and their colleagues have built robots that mimic the human gait, consuming energy comparable to a human walker. The robots use simple control programs, suggesting that steady-state human walking might require only simple control as well.
Researchers at Purdue University have created a chip with thousands of tiny vessels on top of a material containing pores to mimic synthetic cell membranes. This innovation aims to develop 'laboratories-on-a-chip' that can screen individual drugs and increase the efficiency of drug discovery.
Researchers developed a mathematical model that explains how the brain carries out working memory tasks, including loading, holding, and comparing information. The model makes predictions about the neurological basis of working memory.
Helices are a great way to bunch up long molecules like DNA, enabling information to be tightly packed and forming a surface for machines to grasp. Researchers envision a flexible tube immersed in hard spheres to visualize how space matters in helix formation.
Researchers have developed a miniaturized lab that can detect HIV and bacteria in saliva using a portable oral swab kit. The device analyzes samples quickly and accurately, making it useful for rapid response situations such as bioterrorism incidents or emergency room emergencies.
Researchers found that marital strain can increase a woman's risk of death from any cause, with self-silencing during conflict being a significant factor. Married men also had a lower risk of developing heart disease compared to unmarried men.
Three independent teams, including MIT, have developed walking robots that mimic human gait and control. The MIT robot, called Toddler, uses a learning program to adapt to terrain in under 20 minutes. The robots' efficiency and potential applications for robotic prostheses and understanding the human motor system are significant.
Researchers at Michigan State University have discovered a gene, oct-4, expressed in normal adult stem cells, which could lead to the development of cancer prevention and diagnosis tools. The study found that adult stem cells with the oct-4 gene are more prone to becoming cancerous than those without it.
Researchers uncover how alpha-defensin-1 inhibits HIV infection in CD4+ T cells and how lubricin protects cartilage surfaces. These findings provide insights into innate immunity against HIV and may lead to the development of defensin-like drugs for prevention and treatment.
Research by Ingber and colleagues found that manipulating mechanical force in developing mouse lungs can slow down or speed up growth, which could lead to novel treatments for lung conditions. This study sheds light on the importance of mechanobiology in understanding normal lung development and potential intervention pathways.
Hochella's research focuses on the behavior of Earth materials at the atomic scale, revealing interactions with living things, water and air control many Earth processes. He has brought $7 million in research to Virginia and introduced nanoscience into high schools.
Scientists have discovered how climate change causes simultaneous increases or decreases in abundance of multiple species within a large geographical area. A study found that severe weather conditions directly affect the transmission of parasites, which drives populations into synchrony.
Researchers identified a 76-gene signature that can predict disease relapse in patients with lymph-node negative breast cancer. The signature showed high sensitivity (93%) but lower specificity (48%) in predicting distant recurrence within five years.
Researchers found that alpha-defensin-1 directly inactivates HIV when serum levels are low, while also acting on vulnerable cells to block infection. The study provides a basis for developing defensin-like drugs to prevent and treat HIV.
Researchers at WiCell Research Institute and University of Wisconsin-Madison develop method to eliminate need for feeder cells, simplifying culture of human ES cells. The new approach uses protein FGF2 to preserve undifferentiated state and reduce differentiation.
The USGS showcased its expertise in geospatial data sharing and the intersection of earth sciences with national security. The symposium brought together officials from various government agencies and state governments to discuss future coordination across the homeland security enterprise.
A retrospective study of over 500 patients found that obese kidney donors experienced similar short-term outcomes to non-obese donors, despite prior cardiovascular disease risks. The study highlights the need for longer follow-up periods to assess potential long-term differences in obese donors.
A new study suggests that the anterior cingulate cortex (ACC) functions as an early warning system to help recognize and avoid high-risk situations. The ACC learns to warn us of potential mistakes before difficult decisions must be made, allowing for more careful behavior.
Computer simulations have revealed that gold is an effective catalyst when it's in clusters of eight to two dozen atoms, and electrical charging plays a crucial role. This breakthrough has opened up new avenues for exploring environmental effects on catalysis.
The Merck/AAAS Undergraduate Science Research Program supports research stipends and fosters interactions between biology and chemistry departments at participating institutions. The program aims to enhance undergraduate education through research experiences emphasizing the interrelationship between chemistry and biology.
Researchers unveiled a new breed of energy-efficient bipedal robots with a human-like gait. The robots use passive-dynamic walking devices to reduce power consumption, enabling applications in prosthetic devices and robotic control.
A review of North American studies found consistent evidence that media violence is associated with increased aggressive play and behavior in younger children. The effect is small but significant, particularly in boys, and persists even when socioeconomic factors are considered.
Nayfeh has made significant contributions to the field of nonlinear dynamics, including developing a new methodology for controlling ship motions and analyzing acoustic waves in aircraft engine-duct systems. His work has improved the understanding of complex phenomena such as subharmonic and superharmonic resonances in ships and boats.