Researchers at Vanderbilt University have developed a robotic device that can treat severe epilepsy with a minimally invasive procedure. The system uses a shape-memory alloy needle steered by a robotic platform to destroy the area where seizures originate, avoiding drilling through the skull.
New study suggests that early Earth's crust was cool enough for surface water to form during some periods, challenging the long-held idea of a hostile environment. The research compared zircon crystals from Iceland with those formed over 4 billion years ago and found similarities in their compositions.
A randomized clinical trial found that combining cognitive therapy with antidepressant medicine increases the odds of recovery by up to 30% for patients with severe, nonchronic depression. In contrast, chronic or mild cases do not benefit from this combination.
A new brain imaging study identified the neural mechanisms underlying judgment of punishment for harm caused intentionally or unintentionally. The study found that graphic language influences punishment, but only when harm is intentional, while unintentional harm has no effect on punishment level.
Researchers propose using a 30-minute face-to-face interview to assess students' competencies beyond academic aptitude, leading to an 81% PhD completion rate among underrepresented minorities and women. The GRE's limited predictive ability in STEM fields is also highlighted.
Researchers at Vanderbilt University are developing tools to identify and counter cyber attacks on smart transportation systems, which could mitigate the impact of a potential 'Carmageddon' attack. The goal is to create algorithms that can automatically detect intrusions and take effective steps to counteract them.
Researchers have developed a model to estimate the effect of Earth-like planet ingestion on star chemical composition. By analyzing twin stars with planets, they found significant changes in refractory element abundance, supporting the connection between exoplanets and stellar hosts.
Researchers at Vanderbilt University have developed new structural 'supercaps' that can store and discharge significant amounts of electricity while withstanding realistic static loads and dynamic forces. The device operates flawlessly in storing and releasing electrical charge, even under intense dynamic and static forces.
Vanderbilt University PhD student Junhao Lin develops a method to craft metallic wires three atoms wide, opening doors for flexible and transparent electronic circuits. This breakthrough technique enables the creation of ultra-thin wiring for monolayer materials, paving the way for novel applications in electronics and beyond.
A new analysis of cougar teeth found significant variation in dietary habits among the species, suggesting a more generalized approach that allowed them to survive the Pleistocene mass extinction. This contrasts with the more finicky diets of extinct cousins like saber-tooth cats and American lions.
Scientists have developed a liver organ construct that responds to toxins like real human livers, paving the way for more accurate drug screening. The project aims to create interconnected human organ constructs using a miniaturized platform, potentially reducing costs and increasing efficiency in toxicology testing.
Scientists have successfully used a novel approach called bioretrosynthesis to produce the HIV drug didanosine. This method leverages natural selection to create specialized enzymes that can manufacture complex molecules from simple sugars, offering a more sustainable alternative to traditional chemistry.
Researchers used brain-mapping techniques to study imitation in schizophrenia patients and found abnormal brain activity in areas associated with imitation. The findings suggest that individuals with schizophrenia may have a less specialized brain network for processing social information, leading to difficulties with social interactions.
A team of scientists from Vanderbilt University has invented an ultra-fast and ultra-small optical switch that can turn on and off trillions of times per second. The device is made of artificial material engineered to have properties not found in nature, breaking the miniaturization barrier for photon-based devices.
Researchers at Vanderbilt University have discovered that mechanical forces generated by the rhythmic expansion and contraction of cardiac muscle cells play an active role in the initial stage of heart valve formation. This study provides a new perspective on the process, shedding light on how to create artificial heart valves.
A new study published in PNAS found that recording the activity of just 50 neurons can accurately capture the behavior of larger neural networks. This challenges decades-long research on response time and accumulator models in psychology and neuroscience.
Researchers at Vanderbilt University discovered that mosquito sperm contain a suite of specialized chemical sensors called odorant receptors, which drive the rapid increase in movement. These findings suggest a new paradigm for regulating insect reproduction and could provide a powerful approach for controlling insect populations.
An international team of astronomers has discovered a surprising new class of hypervelocity stars moving fast enough to escape the gravitational grasp of the Milky Way galaxy. The new stars are relatively small and have different ejection mechanisms than previously discovered hypervelocity stars.
A study conducted by Vanderbilt University researchers found that skilled typists can't identify the positions of many keys on the QWERTY keyboard and novice typists don't appear to learn key locations. The results contradict the widely held theory of automatic learning, which suggests that typing becomes unconscious with repetition.
Recent advances in robotics enable the creation of prosthetics that mimic natural movement, allowing users to navigate stairs and uneven ground with reduced stress. Studies have shown improved walking speed, decreased energy expenditure, and reduced fall rates compared to passive prostheses.
Researchers have found that manipulating cyanobacteria's clock genes can increase its production of commercially valuable biomolecules. The study discovered that locking the biological clock into a daytime setting increased the amount of biomolecules produced by up to 700 percent.
Researchers aim to create a system that acquires data from various sensors during surgery and integrates it with pre-operative information to produce dynamic, real-time maps. This will enable surgeons to work more easily and safely, while also enabling the robot to assist in semi-automating surgical sub-tasks.
A new system uses phased acoustic arrays and laser vibrometry to detect vibrations inside a container, revealing the presence of explosives. The technology can identify differences between low-yield and high-yield explosives from a distance, providing an additional layer of safety.
Researchers develop novel supercapacitor design using porous silicon and graphene coating, enabling over two orders of magnitude improvement in energy density. The device has the potential to power consumer electronics and renewable energy systems.
A small, wireless capsule has been developed to restore surgeons' sense of touch in minimally invasive surgeries. The system provides haptic feedback, allowing surgeons to feel pressure and tissue stiffness on a computer screen or with a commercially available 'haptic glove'.
A team of neuroscientists has identified a specific area in the visual cortex called V4 that is involved in creating illusory contours. The brain's neural activity in this region correlates with the perception of these illusions, which are thought to be an evolutionary adaptation for detecting predators or prey.
Astronomers have developed a new technique to measure the surface gravity of distant stars, which is crucial for calculating their physical properties and evolutionary state. The technique has been shown to be more accurate than existing methods and can significantly improve estimates of exoplanet sizes.
A new image-guided surgical system uses steerable needles to penetrate the brain and remove blood clots with minimal damage. The system has shown promising results in removing up to 92% of simulated blood clots, offering a new treatment option for patients with life-threatening hemorrhages.
Researchers at Vanderbilt University developed a new method to measure nanocrystals' adsorption and release of hydrogen and other gases. The technique revealed that the size of nanocrystals has a stronger effect on the rate of gas adsorption and release than previously expected, with smaller particles absorbing more gas faster.
A new study provides direct evidence that microbes can contribute to the origin of new species by reducing the viability of hybrids. The researchers used jewel wasp species with similar microbiomes but differing genetic backgrounds to demonstrate this effect.
Researchers at Vanderbilt University used fMRI to map the brain's resting state network, confirming its relationship with anatomical structure. The study provides new insights into neural connectivity and its potential applications in diagnosing mental health disorders.
Researchers propose that most of the universe's dark matter could be made up of particles with a donut-shaped electromagnetic field called an anapole. This unique property makes it difficult to detect, but also allows for specific predictions about its behavior in vast detectors.
Researchers at Vanderbilt University have created the world's smallest liquid droplets in a lab experiment. The tiny droplets, about one-100,000th the size of a virus, exhibit flow-like behavior similar to quark-gluon plasma, a state of matter thought to have existed in the universe during its early stages.
Researchers analyze over 1,000 genes from 23 yeast species to identify reasons for conflicting phylogenetic trees and propose new methods to improve accuracy. They find that genetic data is less reliable during periods of rapid radiation and that the value of DNA data may have a similar limit.
Researchers at Vanderbilt University have developed a low-cost smartphone system that can track gunfire with remarkable accuracy, using unique sonic signatures produced by firearms. The system consists of an external sensor module and smartphones, working together to triangulate the origin of shots.
The new system uses micro-robotics to provide surgeons with a better view of bladder tumors, allowing for more accurate diagnoses and easier tumor removal. The device can operate in challenging environments and has been shown to have sub-millimeter precision.
Researchers at Vanderbilt University developed a system to help children with autism learn joint attention, a basic social skill. The humanoid robot NAO was found to be effective in improving attention and following instructions, suggesting robots could play a crucial role in responding to the growing number of autism diagnoses.
Astronomers suggest that a merger between a galactic black hole and an intermediate-sized black hole in a satellite galaxy could have produced the observed high-energy radiation in the Fermi bubbles. This scenario also explains the absence of old stars near the supermassive black hole.
Researchers at Vanderbilt University have developed a new, nonsurgical process to fine-tune and customize cochlear implant programming, providing improved sound quality and spectral resolution. This image-guided strategy uses pre- and postoperative CT scans to pinpoint electrode locations and optimize signal transmission.
Research at Vanderbilt University reveals a direct link between the body's circadian rhythm and insulin activity, which controls metabolism. The study found that disruption in the circadian clock can lead to increased risk of obesity, diabetes, and heart disease.
A study by Vanderbilt University researchers found that cells can alter their biological clocks by using different synonymous codons in the genetic code. This adaptation allows cells to survive in changing environments, such as varying temperatures, and potentially has applications in biotechnology like biofuel production.
A study by Kenneth Catania at Vanderbilt University has found that common moles rely on stereo sniffing to detect odor gradients, a skill previously thought to be limited to visual and auditory perception. This discovery opens new avenues for research into the capabilities of other mammals that heavily rely on their sense of smell.
Researchers have found a way to 'mine' bacterial genomes for new drug leads by exploiting the process of antibiotic resistance. The study, published in the Proceedings of the National Academy of Sciences, reveals that bacteria can produce hundreds of compounds when exposed to antibiotics, many of which are potential secondary metabolites.
DARPA's Adaptive Vehicle Make (AVM) program aims to reduce costs and lead times in developing new military vehicles by transforming the design and manufacturing process. Vanderbilt University's Institute for Software Integrated Systems is leading the development of engineering software, including META-X tool CyPhy.
A recent study using dental microwear texture analysis found no evidence of increased starvation in saber-tooth cats before their extinction. Instead, the research suggests that these great cats and American lions were well-fed and actively hunted prey, challenging popular theories on megafaunal extinction.
Recent research revealed mosquitoes possess surprisingly effective immune systems, destroying pathogens by utilizing the circulatory system's unique characteristics. A Vanderbilt study discovered a new mechanism for eliminating pathogens, increasing effectiveness in disease control strategies.
Researchers at Vanderbilt University have created a powered exoskeleton that enables people with severe spinal cord injuries to stand, walk, sit and climb stairs. The device provides an unprecedented degree of independence, allowing users to transport it on their wheelchair and use it with minimal concentration.
Researchers mapped auto enthusiasts' brain activity and found that their fusiform face area responds to both faces and cars. The study suggests that expertise in one domain can improve performance in another, potentially aiding treatments for individuals with difficulty recognizing faces.
A study by Vanderbilt University psychologists found that women are better than men at recognizing living organisms, such as birds and animals. In contrast, men tend to perform better in recognizing vehicles like cars and airplanes.
Researchers at Vanderbilt University discovered that ants have four to five times more odor receptors than most other insects, enabling them to form highly organized colonies. The team mapped the olfactory system of two ant species, finding significant differences in receptor expression and chemical signals between males and females.