Over the past 100 years, global temperatures have risen by an average amount of 0.8° C (1.4° F), which according to the Intergovernmental Panel on Climate Change (IPCC), is due largely to humanity's release of pollutants into the atmosphere. Now an international team of researchers has analyzed almost 40 years worth of data in order to quantify exactly what fraction of the change can be attributed to mankind based on events and trends in different regions.
Repairing damaged hearts with healthy cells derived from the patient's own skin or blood is a promising approach to tackling cardiovascular disease, but it does have its limitations. Difficulty in getting the young, freshly implanted cells to integrate and beat in-synch with the surrounding muscle has so far held the technique back. Now scientists are reporting an important advance in this area, demonstrating for the first time that electrically stimulating the new cells can give their development a critical boost.
While MRI scans may not expose patients to the ionizing radiation found in X-rays, they still are potentially harmful. This is because the increased radiofrequency energy absorption associated with newer high-field and ultra-high-field MRI scanners can heat body tissue. Thanks to research being conducted at the Australian National University, however, that may soon no longer be an issue – additionally, scans could be quicker and produce higher-quality images.
According to a new study, the brightest galaxy ever discovered may be in the process of tearing itself apart. WISE J224607.57-052635.0 (W2246-0526) is believed to be brighter than 300 trillion Suns, however the cause of this brightness – the supermassive black hole at the centre of the galaxy – could also be responsible for a drastic transformation.
Using an oven to cook food during cold weather is wonderfully efficient, in that the single appliance serves a meal while providing welcome heat for the home. A new personal accessory takes a similar approach, with a very common mobile device. The Ye-T Warmpad is designed to warm feet from the heat generated by laptop wall chargers.
Even though as many as 50,000 people die of traumatic brain injuries in the United States every year, the equipment used to measure vital stats like intracranial pressure is usually made up of decades-old technology. To address this, researchers at the University of Illinois at Urbana-Champaign and the Washington University School of Medicine in St. Louis have created a new sensor that's far less invasive and much safer than the existing technology.
Not so long ago the ocean floor was as unknown as the far side of the Moon. Now, an international team of scientists is using satellite data to chart the deep ocean by measuring the Earth's gravitational field. The result is a new, highly-detailed map that covers the three-quarters of the Earth's surface that lies underwater. The map is already providing new insights into global geology.
It's fair to say that nuclear fusion is the holy grail of clean energy production, with the potential to provide limitless clean energy, but right now there are a fair few barriers to making it a reality. An international team of researchers has inched the dream one step closer to reality, creating a method by which energy dispersal can be observed during ignition attempts, paving the way for improved energy delivery during the process.
Despite huge improvements in prenatal care, premature births are still a big problem across the globe. Researchers from Kings College London have worked on a new predictive tool for doctors, bringing together different data sets and building an app that can be used to assess risk of preterm birth on a case-by-case basis.
Astronomers have achieved first light with a powerful instrument that will allow scientists to probe the environments surrounding black holes. The GRAVITY instrument is in the process of being installed in the tunnels below the ESO's Very Large Telescope (VLT) located at the Paranal Observatory, Chile.