- Guardian Unlimited Science
- 21/4/19 18:00
The solutions to today’s puzzlesEarlier today I set you the following two puzzles. The first is from the UK’s Mathematical Olympiad for Girls:Painting the houses Continue...
305 articles from MONDAY 19.4.2021
The solutions to today’s puzzlesEarlier today I set you the following two puzzles. The first is from the UK’s Mathematical Olympiad for Girls:Painting the houses Continue...
Due to global warming, not only the temperatures in the atmosphere and in the ocean are rising, but also winds and ocean currents as well as the oxygen distribution in the ocean are changing. For example, the oxygen content in the ocean has decreased globally by about 2% in the last 60 years, particularly strong in the tropical oceans. However, these regions are characterized by a complex system...
Researchers used platinum and aluminum compounds to create a catalyst which enables certain chemical reactions to occur more efficiently than ever before. The catalyst could significantly reduce energy usage in various industrial and pharmaceutical processes. It also allows for a wider range of sustainable sources to feed the processes, which could reduce the demand for fossil fuels required by...
Making space in high street shops for people to repair clothes could mend the damage caused by fast fashion and transform sewing into a wellbeing activity, experts say.
A micro-sized polymeric net wrapping around brain tumors, just like a fishing net around a shoal of fish: this is microMESH, a new nanomedicine device capable of conforming around the surface of tumor masses and efficiently delivering drugs. It has been described by the researchers of the IIT—Istituto Italiano di Tecnologia (Italian Institute of Technology) in Nature Nanotechnology. The new...
Solid-matrix catalysts called heterogeneous catalysts are among the most widespread industrial applications in reducing toxic gases, unburned fuel, and particulate matter in the exhaust stream from the combustion chamber. They are also used in energy, chemical, and pharmaceutical sectors, i.e., production of biodiesel, polymers, biomass/waste conversion into valuable products, and many others...
Asteroids can pose a threat to life on Earth but are also a valuable source of resources to make fuel or water to aid deep space exploration. Devoid of geological and atmospheric processes, these space rocks provide a window onto the evolution of the solar system. But to really understand their secrets, scientists must know what's inside them.
A new study classifies different types of wildlife traffickers and sellers in two of Central Africa's growing urban centers, providing new insight into the poorly understood urban illegal wildlife trade.
New basic science research shows what happens to the development of abdominal aortic aneurysms when you inhibit JMJD3 through both genetics and pharmacology.
Scientists have been able to demonstrate that graphene nanostructures can be generated by annealing of a nanostructured silicon carbide crystal for a few years. "These two-dimensional, spatially strongly restricted carbon bands exhibit a vanishingly small electrical resistance even at room temperature. They are thus ballistic," explains Prof. Dr. Christoph Tegenkamp, Head of the Professorship of...
Language is one of the most notable abilities humans have. It allows us to express complex meanings and transmit knowledge from generation to generation. An important question in human biology is how this ability ended up being developed, and researchers from the universities of Barcelona, Cologne and Tokyo have treated this issue in a recent article.
Using machine learning methods, researchers at TU Graz can predict the structure formation of functionalized molecules at the interfaces of hybrid materials. Now they have also succeeded in looking behind the driving forces of this structure formation.
The Andes Mountains of South America are the most species-rich biodiversity hotspot for plant and vertebrate species in the world. But the forest that climbs up this mountain range provides another important service to humanity.
Scientists have identified the primary cause of failure in a state-of-the-art lithium-metal battery, of interest for long-range electric vehicles: electrolyte depletion.
New, detailed study of the Renland Ice Cap offers the possibility of modelling other smaller ice caps and glaciers with much greater accuracy than hitherto. The study combined airborne radar data to determine the thickness of the ice cap with on-site measurements of the thickness of the ice cap and satellite data. Researchers gathered data from the ice cap in 2015, and this work has now come to...
Middle-age and older people living in more disadvantaged neighborhoods -- areas with higher poverty levels and fewer educational and employment opportunities--had more brain shrinkage on brain scans and showed faster decline on cognitive tests than people living in neighborhoods with fewer disadvantages, according to a new study.
Researchers have made the first ever global assessment map of how future climate and land-use change impacts genetic diversity in mammals. The researchers hope the map will assist policy makers in prioritizing which areas should be preserved first.
Intellectual disability is most often caused by changes to the genome that take place in early fetal development and are not found in the parents' DNA. This is why the risk of recurrence in the next sibling of the family is very small, as indicated by a recent study.
Language is one of the most notable abilities humans have. It allows us to express complex meanings and transmit knowledge from generation to generation. An important question in human biology is how this ability ended up being developed.
There are many variants of 'goblet cells' in the intestines and they seem to have different functions, according to a new study. The study indicates that defects in goblet cells of a particular type may be a factor contributing to ulcerative colitis, an inflammatory bowel disease.
A simple dietary supplement reduces behavioral symptoms in mice with a genetic mutation that causes schizophrenia. After additional experiments, including visualizing the fluorescently stained dancing edge of immature brain cells, researchers concluded that the supplement likely protects proteins that build neurons' cellular skeletons.