How a plant regulates its growth
Researchers probe the 'full' thermoelectric properties of a single molecule
Plants grow towards the light. This phenomenon, which already fascinated Charles Darwin, has been observed by everyone who owns houseplants. Thus, the plant ensures that it can make the best use of light to photosynthesize and synthesize sugars. Similarly, the roots grow into the soil to ensure that the plant is supplied with water and nutrients.
Archeologists find intact ceremonial chariot near Pompeii
One of the dreams of physicists today is being able to harvest electricity back from dissipated heat. The key to this probably resides in circuits that contain single molecules. Instead of being limited to classical conductance, the thermopower can be enhanced dramatically by the properties of quantum states. But then, what quantum states offer good efficiency? What characteristics are desirable?...
Second order optical merons, or light pretending to be a ferromagnet
The discovery of an intact ceremonial chariot was revealed by officials at the Pompeii archaeological site in Italy on Saturday. The chariot survived the eruption of Mount Vesuvius in 79, a building collapse and looting by antiquities...
Metal whispering: Finding a better way to recover precious metals from electronic waste
One of the key concepts in physics, and science overall, is the notion of a 'field' which can describe the spatial distribution of a physical quantity. For instance, a weather map shows the distributions of temperature and pressure (these are known as scalar fields), as well as the wind speed and direction (known as a vector field). Almost everyone wears a vector field on their head—every hair...
Study examines what makes people susceptible to fake health news
Inspired by nature's work to build spiky structures in caves, engineers at Iowa State University have developed technology capable of recovering pure and precious metals from the alloys in our old phones and other electrical waste.
New algorithm identifies 'escaping' cells in single-cell CRISPR screens
A new study from University of Kansas journalism & mass communication researchers examines what influences people to be susceptible to false information about health and argues big tech companies have a responsibility to help prevent the spread of misleading and dangerous information.
Understanding the spatial and temporal dimensions of landscape dynamics
A team of researchers from New York University and the New York Genome Center has developed a new computational tool to help understand the function and regulation of human genes. The results, published today in the journal Nature Genetics, demonstrate how to interpret experiments that combine the use of CRISPR to perturb genes along with multimodal single-cell sequencing technologies.
New study identifies mountain snowpack most 'at-risk' from climate change
The Earth's surface is subject to continual changes that dynamically shape natural landscapes. Global phenomena like climate change play a role, as do short-term, local events of natural or human origin. The 3-D Geospatial Data Processing (3DGeo) research group of Heidelberg University has developed a new analysis method to help improve our understanding of processes shaping the Earth's surface...
Behavior of wild capuchin monkeys can be identified by marks left on their tools
As the planet warms, scientists expect that mountain snowpack should melt progressively earlier in the year. However, observations in the U.S. show that as temperatures have risen, snowpack melt is relatively unaffected in some regions while others can experience snowpack melt a month earlier in the year.
In era of online learning, new testing method aims to reduce cheating
A group of researchers including Tiago Falótico, a Brazilian primatologist at the University of São Paulo's School of Arts, Sciences and Humanities (EACH-USP), archeologists at Spain's Catalan Institute of Human Paleoecology and Social Evolution (IPHES) and University College London in the UK, and an anthropologist at the Max Planck Institute for Evolutionary Anthropology in Germany, have...
The selection of leaders of political parties through primary elections penalizes women
The era of widespread remote learning brought about by the COVID-19 pandemic requires online testing methods that effectively prevent cheating, especially in the form of collusion among students. With concerns about cheating on the rise across the country, a solution that also maintains student privacy is particularly valuable.
The missing trillions: The hidden cost of energy externalities
A study by two researchers at the UPF Department of Political and Social Sciences (DCPIS) has examined the effect of selecting party leaders by direct vote by the entire membership (a process known in southern Europe as 'primaries' and in English-speaking countries as 'one member, one-vote,' OMOV) on the likelihood of a woman winning a leadership competition against male rivals.
The human brain grew as a result of the extinction of large animals
The hidden social, environmental and health costs of the world's energy and transport sectors is equal to more than a quarter of the globe's entire economic output, new research from the University of Sussex Business School and Hanyang University reveals.
New skills of graphene: Tunable lattice vibrations
A new paper by Dr. Miki Ben-Dor and Prof. Ran Barkai from the Jacob M. Alkow Department of Archaeology at Tel Aviv University proposes an original unifying explanation for the physiological, behavioral and cultural evolution of the human species, from its first appearance about two million years ago, to the agricultural revolution (around 10,000 BCE). According to the paper, humans developed as...
Assessing a compound's activity, not just its structure, could accelerate drug discovery
Without electronics and photonics, there would be no computers, smartphones, sensors, or information and communication technologies. In the coming years, the new field of phononics may further expand these options. That field is concerned with understanding and controlling lattice vibrations (phonons) in solids. In order to realize phononic devices, however, lattice vibrations have to be...
How 'great' was the great oxygenation event?
Assessing a drug compound by its activity, not simply its structure, is a new approach that could speed the search for COVID-19 therapies and reveal more potential therapies for other diseases.
Low-level thinning can help restore redwood forests without affecting stream temperatures
Around 2.5 billion years ago, our planet experienced what was possibly the greatest change in its history: According to the geological record, molecular oxygen suddenly went from nonexistent to becoming freely available everywhere. Evidence for the Great Oxygenation Event (GOE) is clearly visible, for example, in banded iron formations containing oxidized iron. The GOE, of course, is what allowed...
Searching for novel targets for new antibiotics
Selectively cutting trees in riparian zones to aid forest restoration can be done without adversely affecting streams' water temperature as long as the thinning isn't too intensive, new research by Oregon State University shows.
Tundra vegetation shows similar patterns along microclimates from Arctic to sub-Antarctic
Ribosome formation is viewed as a promising potential target for new antibacterial agents. Researchers from Charité - Universitätsmedizin Berlin have gained new insights into this multifaceted process. The formation of ribosomal components involves multiple helper proteins which, much like instruments in an orchestra, interact in a coordinated way. One of these helper proteins—protein...
Economist says private security systems bar others from protection
Researchers are in the search for generalisable rules and patterns in nature. Biogeographer Julia Kemppinen together with her colleagues tested if plant functional traits show similar patterns along microclimatic gradients across far-apart regions from the high-Arctic Svalbard to the sub-Antarctic Marion Island. Kemppinen and her colleagues found surprisingly identical patterns.
Wrasses dazzle: How fairy wrasses got their flamboyant colours
New research has determined the prevalence of private security systems may be robbing the general public of the police services they need.
To sustain a thriving café culture, we must ditch the disposable cup.
With their exuberant colors, fiery personalities and captivating courtship displays, the fairy wrasses are one of the most beloved coral reef fish. Despite this, the evolutionary history of its genus was not well understood—until now.
Takeaway coffees—they're a convenient start for millions of people each day, but while the caffeine perks us up, the disposable cups drag us down, with nearly 300 billion ending up in landfill each year.