Women with breast implants after mastectomy have a lower mortality rate from breast cancer compared to those without implants, suggesting that breast implants may improve survival. The study of over 4,000 women found that implant recipients had a 12.4% mortality rate, half that of non-implant recipients.
Researchers discovered a jumping gene called Hermes, which creates changes in DNA similar to those created by the process behind antigen recognition. This discovery provides evidence that genetic processes behind antigen diversity may have evolved from the activity of a jumping gene.
A newly discovered civilization in Peru's Norte Chico region thrived 5000 years ago, featuring monumental architecture and a complex economy. The finding sheds new light on the development of complex societies, challenging previous assumptions about early civilizations.
The National Evolutionary Synthesis Center (NESCent) has been established in Durham, North Carolina, with a $15 million grant from the National Science Foundation. The center aims to unify the biological sciences by promoting cross-disciplinary studies and synthesizing evolutionary knowledge for policymakers, educators, and society.
The US Department of Energy has fulfilled its commitment to sequence the human genome, publishing data on Chromosome 16. The completed chromosome includes 880 genes linked to various diseases, such as breast and prostate cancer, Crohn's disease, and adult polycystic kidney disease.
HydroGlobe's patented water-filtration technologies will be licensed to Graver Technologies, treating potable water supplies at home and municipal levels worldwide. Stevens President Harold J. Raveché validates the acquisition as a major recognition of pioneering work in environmental technology innovation.
The Wide Field Camera (WFCAM) is the world's most powerful infrared survey camera, detecting objects one hundred times fainter than existing surveys. It has captured stunning images of the Orion nebula, revealing thousands of young stars and dramatic clouds of gas and dust.
At the University of Rochester Medical Center, a team of nurses led by Diane O'Brien and John Treanor developed a system to inoculate over 200 volunteers with an experimental flu vaccine. The study aimed to assess the safety and effectiveness of the vaccine in preventing another flu vaccine shortage.
The invention uses protein-DNA chimeras to detect and count small numbers of molecules, offering exquisite sensitivity and dynamic range. Methods based on these molecules are designed to work with existing PCR machines, making them useful for human disease diagnosis, environmental monitoring, and pathogen detection.
Professor Xiaolian Gao's research develops a technology to mass-produce multiple genes on a single chip, reducing costs and time factors by 100 times. This breakthrough has the potential to create complete functioning organisms, produce energy, neutralize toxins and make drugs.
Researchers found that increased solar radiation affects calcium and sodium deposition in Antarctica, indicating a link between solar activity and climate. This discovery sheds light on the Earth's climate system without accounting for human impacts.
Researchers used somatic hypermutation to evolve a red fluorescent protein with improved stability and color emission properties. The new protein, mPlum, was created by allowing B cells to mutate the gene at a rate of roughly a million times that of the genome. This process enabled the production of multiple mutations in a single cycle.
A new stool DNA test has been found to detect a significant proportion of colorectal cancers, potentially overcoming barriers to screening among unwilling individuals. The test, which analyzes tumor-specific DNA, detected 52% of cancers in average-risk asymptomatic individuals.
Scientists have developed a range of new fluorescent proteins with unique colors, allowing them to track the effects of multiple genetic alterations in a single cell. These monomeric proteins retain fluorescent properties while being less toxic than their multimeric counterparts, enabling precise cellular analysis.
Archaeologists have confirmed the existence of a complex society in South America dating back over 5,000 years. The inland culture, based on agriculture, featured monumental architecture and sophisticated social hierarchies.
A team of researchers from Duke University has successfully used micromanipulation to study the separation of sister chromatids in cell division. Their experiments revealed that chromatids are initially attached but then separate at their centers, with linkages playing a crucial role in their separation.
Male crickets fed high protein diets engage in more sexual calling and die sooner than those on low protein diets. This is because they spend extra resources on mating behavior, shortening their lifespan. In contrast, males on low protein diets tend to delay calling until later in life, maintaining their body weight for longer.
The McMaster researchers developed a detailed bleeding history questionnaire to discriminate between patients with QPD and those without. The tool helps identify higher likelihoods of bleeding that leads to lifestyle changes, bruises or bleeding in joints, providing valuable clues for doctors diagnosing the condition.