Researchers from Sweden have successfully identified 12 substances in the breath of patients using a commercially available breath sampler. The study found high detectability for most drugs even 24 hours after intake, suggesting roadside breath testing as a promising alternative to blood and urine tests.
Researchers created a sea turtle-inspired robot to study flipper-based locomotion on complex surfaces. The 'Flipperbot' demonstrated improved movement using a free wrist, which reduced disturbance to the ground, similar to real-life observations of hatchling loggerhead sea turtles.
Scientists aim to develop first global quantum communication network by testing the limits of quantum entanglement using the International Space Station. The proposed experiment uses Bell's theorem and quantum key distribution to enable secure communication over long distances.
Research suggests that cold cities like Minneapolis require three-and-a-half times more energy for climate control compared to warm cities like Miami. Dr. Michael Sivak's study analyzed heating and cooling degree days, appliance efficiencies, and power-generating plant efficiencies to reach this conclusion.
Researchers analyzed 66 Amazon protected areas and found no strong association between deforestation avoidance and RAPPAM scores. However, they discovered a correlation between the absence of land tenure conflicts and successful deforestation prevention.
Scientists have created a metascreen cloak that can hide objects from microwaves, providing optimal functionality at specific frequencies and bandwidths. The researchers predict the technique's conformability and robustness will enable cloaking of oddly shaped objects.
Researchers have successfully replicated Feynman's famous double-slit thought-experiment using a gold-coated silicon membrane and a moveable mask. This achievement demonstrates the mysterious properties of electrons, including their ability to produce an interference pattern when fired at the wall one at a time.
Researchers are pursuing a quantum satellite concept to establish a secure global quantum communication network by harnessing the signal's travel time in empty space. The team has emphasized precise alignment between the satellite and ground stations to ensure accurate measurement of photons.
Researchers developed a pixelated vision system to enhance retinal implants, allowing patients to detect motion, large objects, and improve orientation. The system uses mathematical algorithms to pick out salient locations in images and provides directional cues for navigation tasks.
The inaugural Physics Journalism Prize has been awarded to Anil Ananthaswamy for his article Hip Hip Array, which explores the Square Kilometre Array project. The prize is sponsored by IOP Publishing and the Science and Technology Facilities Council (STFC), and includes a £10,000 award and an expenses-paid trip to Japan.
A pilot study found six compounds in the breath that increase following stressful mental arithmetic exercises, which may lead to a rapid stress detector. The study's findings are promising but need to be scaled-up with more people and settings before concrete conclusions can be made.
A new study shows that children can influence their parents' attitudes and behaviors towards the environment through education. The research, conducted in the Seychelles, found that children participating in wildlife clubs increased their parents' knowledge of wetlands and led to more environmentally friendly practices.
A proof-of-concept device that combines a single nitrogen-vacancy centre with an optical resonator and waveguide has been created. The device, described as the 'building block of future quantum networks,' could enable faster computers for certain problems.
A small robot was driven by a male silkmoth to track down its sex pheromone, demonstrating the potential for insect-inspired odor tracking. The researchers hope to apply this technology to autonomous robots that can detect environmental spills and leaks.
Researchers have successfully printed human embryonic stem cells using a novel valve-based technique, enabling the creation of three-dimensional tissues and structures. The breakthrough could speed up drug testing and pave the way for transplantable organs without donation.
Researchers used MEG to identify two distinct spectral features in schizophrenia patients, which were significantly different from healthy control subjects. The study also found four features that changed with age, suggesting the disease affects brain activity over time.
A recent article casts doubt on Sir Bernard Lovell's alleged brainwashing by the Soviets during a Cold War visit. According to Lovell's son Bryan, the reason for his father's illness may have been exhaustion rather than Soviet mind control.
A new study published in Environmental Research Letters analyzes the benefits and drawbacks of dissolving particles in ocean surfaces to increase marine uptake of carbon dioxide. The researchers find that this approach would only compensate for around 9% of present-day anthropogenic CO2 emissions, highlighting its inefficiency.
Researchers warn of bleak outlook for savanna fuelwood supplies in Africa, with potential exhaustion in 13 years. To avoid this, reducing fuelwood use by 15% annually is proposed until only 20% of households rely on it.
Researchers have identified specific volatile organic compounds (VOCs) produced by certain bacteria, which can be used to diagnose lung infections. The findings suggest a potential breath test to detect bacterial infections, such as tuberculosis, in just minutes.
Researchers successfully grew helium crystals under zero gravity, overcoming laboratory limitations to examine the dynamics of these peculiar materials. The crystals formed rapidly, exhibiting an unprecedented Ostwald ripening process that can help reveal the underlying physics of crystal development.
New research suggests that sea levels are rising at a rate of 3.2 mm per year, 60% faster than the IPCC's central projections, based on satellite measurements and analysis of global temperatures and sea-level data over the past two decades.
Scientists have discovered a method using shrubs to create historical climate data on glaciers, providing more accurate predictions of future changes. The method allows researchers to extend the current record of glacier melting back by many decades, giving them a better understanding of how glaciers behave in the summer.
A novel hybrid printer combines two low-cost fabrication techniques to create cartilage constructs with improved mechanical stability. The printer uses a combination of synthetic and natural materials, allowing for the growth of cells and development of structures typical of elastic cartilage.
A study found that extreme rainfall in the UK is expected to shift later in the year, especially in the south-east, where it will peak in autumn. This could lead to an increased risk of flooding, particularly when river catchments are at their maximum water capacity.
Researchers from China have devised a universal method using just an optical microscope to measure graphene and other two-dimensional materials' thickness. The technique exploits the reflected light's red, green, and blue components, increasing contrast with sample thickness.
Researchers have discovered the mechanism behind pond skaters' ability to walk on water. They use their middle leg to create swirling vortices, similar to those made by oars in a rowing boat, allowing them to move forward without sinking. The waxy hairs covering their legs also repel water and help generate an upward force.
Reducing nitrogen fertilizer use by 60% in over-fertilized areas could substantially decrease greenhouse gas emissions without affecting crop productivity. The study found that N2O emissions have become the dominant factor in China's warming effect, surpassing the cooling effects of CO2 uptake.
Researchers have provided a mathematical formula to describe the processes that dictate how cauliflower-like patterns form and develop. The formula was derived from thin films grown using chemical vapour deposition, which successfully predicted the final cauliflower-like patterns by comparing them to actual plants.
Research finds climate scepticism prevalent in UK and US newspapers, with opinion pieces often unchallenged. The study analyzed over 2,064 articles from six countries during two periods, including the IPCC's Fourth Assessment Report, and found a significant presence of sceptical voices in these nations.
A PhD student at the University of Bristol spent two weeks in a simulated Martian habitat, where he and his crew members experienced life on the red planet. They conducted experiments, studied space suits, and even had a 'close encounter' with a desert mouse.
A new study predicts that sea levels will continue to rise for thousands of years due to irreversible warming caused by greenhouse gas emissions. The research suggests that the Earth's ice sheets and oceans will contribute significantly to this rise, with a possible increase of up to 6.8 meters in the next thousand years.
Researchers found that the spread of scores across different sports, such as volleyball and snooker, follows a similar distribution. They also discovered that this phenomenon applies to other everyday phenomena, including human wealth and population distribution, governed by power laws and the Pareto principle.
Researchers developed a neural prosthesis to restore decision-making processes in monkeys with disrupted cognitive function. The device, which stimulated specific brain cells, improved performance and even surpassed normal conditions.
The Met Office's new 'high-top' system better warns of severe winter conditions by accounting for sudden stratospheric warmings. This improved model predicted a cold start to the 2010/11 winter, which turned out to be the second-coldest in 350 years of records.
Researchers have developed an invisible QR code that increases security on printed documents, making it difficult to replicate. The code can be read by a smartphone under near-infra-red light illumination, offering a new level of authentication for solid objects.
A cost analysis of delivering solar geoengineering materials to the stratosphere shows that it is feasible and affordable, with costs estimated at $1-2 billion per year. The study concludes that using aircraft is the cheapest option, while guns and rockets are more expensive due to lack of reusability.
Hayabusa 2 aims to collect samples from the asteroid's surface, which may preserve water and amino acids. The mission hopes to provide clearer insight into the early days of the solar system than previous meteorite samples.
Researchers develop electrotactile stimulation devices that can respond to touch and finger movement, paving the way for smart surgical gloves. The devices could enable precise local ablations and ultrasound scans with unprecedented accuracy.
Researchers Paul J Steinhardt and Luca Bindi found naturally occurring quasicrystal samples in far eastern Russia, strengthening the case that they arrived on Earth from outer space. The samples were brought to the area during the last glacial period, suggesting a meteorite hit around 15,000 years ago.
Researchers have developed a wireless power device called rectenna that can harness energy from smartphones and transmit it to nearby objects. The device is priced at just one penny per unit and has the potential to revolutionize daily interactions with everyday objects.
Researchers have successfully produced and implemented single particles of light into a quantum key distribution link, enabling secure communication networks. The experiment uses semiconductor nanostructures to emit single photons with high efficiency, making it possible to transmit keys over longer distances without interception.
Physicists analyzed the interactions between characters in the Iliad, Beowulf, and Tain Bó Cuailngé, finding similarities with real-life social networks. The study revealed assortative and vulnerable network structures, indicating realistic societal dynamics.
Researchers at KAIST used triangular shapes to guide axon growth in a dish, finding that smaller vertices were more effective in inducing growth. The study aims to develop a reproducible neural circuit model for learning and memory studies as well as drug screening applications.
Researchers from Imperial College London have developed a low-cost, 3D eye-tracking device that can track users' eye movements and allow them to control a cursor on a screen. The device has been shown to be effective in enabling people with disabilities to interact with computers and their surroundings using just their eyes.
Researchers have developed a robotic set of legs that models human walking in a biologically accurate manner, allowing for insights into the processes underlying walking in humans. The robot's neural architecture and sensory feedback pathways mimic those found in humans, enabling it to walk without balance.
A climate model reveals that pre-industrial emissions from land use changes account for 9% of the increase in global mean temperature since the industrial revolution. Historical CO2 emissions from China and India, largely driven by population growth, continue to impact the atmosphere and climate today.
The men's 100 m sprint is showing significant improvement in performance due to advancements in technology. The introduction of fully automated timing and changes to javelin specifications have contributed to these gains.
Researchers develop algorithm to track pollutants in water and atmosphere, identifying exact location of leaks as soon as possible. The model takes into account diffusion, convection, and reaction, providing unique solution given observable data.
Researchers have created a novel energy harvester that can power body-monitoring devices by walking, offering a potential solution to the heavy battery burden on soldiers. The device, designed to fit onto the outside of the knee joint, generates electricity through vibrations caused by plectra plucking energy-generating arms.