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The researchers Juan A. Fernández-Ontiveros, of the Istituto Nazionale di Astrofisica (INAF) in Rome and Teo Muñoz-Darias, of the Instituto de Astrofísica de Canarias (IAC), have written an article in which they describe the different states of activity of a large sample of supermassive black holes in the centres of galaxies.

Killer flies can reach accelerations of over 3g when aerial diving to catch their prey - but at such high speeds they often miss because they can't correct their course.

Researchers from St Petersburg University have created a new theory of diffusion NMR experiments to study amyloid fibrils. Fibrils are one of the key factors behind various forms of dementia, including Alzheimer's disease. The researchers showed that using a diffusion filter it is possible to separate the spectral signals of fibrils and other components of the amyloidogenic sample and obtain their individual spectra, which has been considered impossible for a long time.

MD Anderson researchers have discovered a new role for the metabolic enzyme, MCAD, in glioblastoma. The enzyme prevents toxic fatty acid accumulation, in addition to its normal role in energy production, and targeting MCAD led to irreversible damage and cell death specifically in cancer cells.

A new study has mounted perhaps the most intricate, detailed look ever at the diversity in structure and form of bees, offering new insights in a long-standing debate over how complex social behaviors arose in certain branches of bees' evolutionary tree. The report offers strong evidence that complex social behavior developed just once in pollen-carrying bees, rather than twice or more, separately, in different evolutionary branches--but researchers say the case is far from closed.

The cause of Earth's deepest earthquakes has been a mystery to science for more than a century, but a team of Carnegie scientists may have cracked the case. New research published in AGU Advances provides evidence that fluids play a key role in deep-focus earthquakes--which occur between 300 and 700 kilometers below the planet's surface.

Researchers from the Danish psychiatry research-project iPSYCH have contributed to identify 33 new genetic variants which, as it turns out, play a role in bipolar disorder. To achieve this, they have examined DNA profiles from 413,000 people.

Current wireless networks such as Wi-Fi, LTE-Advanced, etc., work in the lower radio spectrum, below 6 GHz. Experts warn that soon this band will become congested due to mushrooming data traffic. It is calculated that by 2024, 17,722 million devices will be connected.

A new class of membranes promises highly interesting applications in material separation, whether in biotechnology or water purification. The theoretical understanding of these polymer membranes is, however, still incomplete. Two researchers from Helmholtz-Zentrum Hereon and the University of Göttingen now present a study, published in the renowned science journal Chemical Reviews, that identifies these gaps in knowledge and shows promising approaches toward solving them.

The Finnish solution to include all types of biodiversity data and the whole data life cycle, from collection to use, in the same data infrastructure is unique. It is also rare for one infrastructure to be able to serve cutting-edge research, public administration, business and the civil society simultaneously. This solution, the Finnish Biodiversity Information Facility "FinBIF" is described as a best-practice model in biodiversity informatics in a recent paper in the Nature Portfolio journal Scientific Data.

Non-parents expand the range of their facial expressions in caring for infants among primates. The study shows the ability, among non-relatives, to both decipher facial expressions and to be attuned to others' emotional states, revealing the evolutionary nature of communication.

A recent study finds that the vast majority of Black adolescents have experienced racism, that they experience anticipatory stress about experiencing racism again, and that their racial identity can influence that stress in a variety of ways.

Researchers from LSTM's Centre for Neglected Tropical Diseases (CNTD) have been using an infrared thermal imaging camera to detect subclinical cases and predict the progression of lymphatic filariasis in Bangladesh.

Researchers at Aalto University in Finland have found strong evidence that warm ice - that is, ice very close in temperature to zero degrees Celsius - may fracture differently than the kinds of ice typically studied in laboratories or nature. A new study published in The Cryosphere takes a closer look at the phenomenon, studied at the world's largest indoor ice tank on Aalto's campus.

Plants that exist on land today have genes that allow them to exchange valuable lipids with beneficial fungi. This plant-fungus partnership is at the origin of the transition of plants from aquatic life to terrestrial life.

Scientists from Konstanz and Innsbruck uncovered how honeybees organise their collective defence in response to predators and used computational modelling to identify potential evolutionary drivers of the behaviour.

Inspired by insects that suck nutrients directly from plant veins, physicists from DTU have studied whether valuable chemical substances can be harvested directly from the cells of plants. Using a harvester measuring only a few microns, they have now achieved a technological breakthrough.

There has long been controversy about whether the world's highest region, Tibet, has grown taller during the recent geological past. New results from the University of Copenhagen indicate that the 'Roof of the World' appears to have risen by up to 600 meters and the answer was found in underwater lava. The knowledge sheds new light on Earth's evolution.

A metasurface hologram is an ultra-thin surface that is capable of arbitrarily shaping and projecting laser beams to extremely wide angles. However, due to the high coherence of laser light and inevitable defects in the metasurface, holographic images produced by meta-holograms suffer from deleterious artifacts that are extremely difficult to remove. A US-China team developed an efficient method to suppress holographic defects by fine-tuning the spatial coherence of laser illumination with a novel laser.

New research could enable better healthcare for patients with benign tumours of the adrenal glands. Researchers at Lund University in Sweden have identified the levels of cortisol produced by the tumours which are associated with higher mortality rates.