Tech
Before the first oncogene mutations were discovered in human cancer in the early 1980s, the 1970s provided the first data suggesting alterations in the genetic material of tumors. In this context, the prestigious magazine "Nature" published in 1975 the existence of a specific alteration in the transformed cell: an RNA responsible for carrying an amino acid to build proteins (transfer RNA) was missing a piece, the enigmatic nucleotide "Y".
Researchers at the University of Basel in collaboration with colleagues from Pisa have developed a new concept that uses the electron spin to switch an electrical current. In addition to fundamental research, such spin valves are also the key elements in spintronics - a type of electronics that exploits the spin instead of the charge of electrons. The results were published in the scientific journal Communications Physics.
A group of researchers have demonstrated that, from seven methods commonly used to test for viruses in untreated wastewater, an adsorption-extraction technique can most efficiently detect SARS-CoV-2. This gives us another tool to detect the presence and spread of the COVID-19 pandemic.
An international research team led by The University of Manchester has revealed a nanomaterial that mirrors the "magic angle" effect originally found in a complex man-made structure known as twisted bilayer graphene - a key area of study in physics in recent years.
Synthetic polymers have changed the world around us, and it would be hard to imagine a world without them. However, they do have their problems. It is for instance hard from a synthetic point of view to precisely control their molecular structure. This makes it harder to finely tune some of their properties, such as the ability to transport ions. To overcome this problem, University of Groningen assistant professor Giuseppe Portale decided to take inspiration from nature.
Jointly with cooperation partners, a researcher of Karlsruhe Institute of Technology (KIT) has developed "porous liquids": Nanoparticles, that are able to separate gas molecules of different sizes from each other, float - finely distributed - in a solvent. This is because the particles have empty pores, through whose openings only molecules of a certain size can penetrate. These porous liquids may be used directly or processed into membranes that efficiently separate propene from gaseous mixtures.
New Haven, Conn. -- A nifty move with nitrogen has brought the world one step closer to creating a range of useful products -- from dyes to pharmaceuticals -- out of thin air.
The discovery comes from a team of Yale chemists who found a way to combine atmospheric nitrogen with benzene to make a chemical compound called aniline, which is a precursor to materials used to make an assortment of synthetic products.
A study describing the process appears in the journal Nature.
To prevent the spread of COVID-19, many universities canceled classes or held them online this spring -- a change likely to continue for many this fall. As a result, hands-on chemistry labs are no longer accessible to undergraduate students. In a new study in the Journal of Chemical Education, researchers describe an alternative way to engage students: a virtual game, modeled on an escape room, in which teams solve chemistry problems to progress and "escape."
Contrary to popular wisdom, daily social media use is not a strong or consistent risk factor for depressive symptoms among adolescents, according to a new study by Columbia University Mailman School of Public Health researchers. The results are published in the Journal of Adolescent Health.
Researchers in China have taken the first step towards a new way of treating gastric wounds by using a microrobot combined with the new concept of "in situ in vivo bioprinting" to carry out tissue repair inside the body.
Their study, published today in the IOP Publishing journal Biofabrication, establishes proof-of-concept for this new method in the field of bioprinting.
COLUMBUS, Ohio - Walking with a purpose - especially walking to get to work - makes people walk faster and consider themselves to be healthier, a new study has found.
The study, published online earlier this month in the Journal of Transport and Health, found that walking for different reasons yielded different levels of self-rated health. People who walked primarily to places like work and the grocery store from their homes, for example, reported better health than people who walked mostly for leisure.
After an oil spill or leak, it's important to act fast. If the oil has gotten into soil, scientists need to rapidly assess how much oil there is and how far it spread. It's a process that has always been costly and time-consuming.
Nuwan Wijewardane at University of Nebraska-Lincoln knew there had to be a better way. He and his team found a new method using state-of-the-art technology that is faster and cheaper. It lets scientists get to work quicker on restoring the soil.
Hydrostatic pressurization can effectively lead to new and improved material properties. However, most of the novel material properties are only retainable at high-pressure states, and therefore warrant no practical applicability at ambient conditions. Recently, a team of international scientists led by Dr. Lingping Kong and Dr. Gang Liu from HPSTAR reported permanent and irreversible transition of 2D hybrid Dion-Jacobson lead iodide perovskite to 3D perovskite phase at ambient conditions after pressure treatment.
Organic solar cells are ideal for use in flexible electronics because of the inherently malleable nature of semiconducting polymers. Recent research on the interplay between processing, thermodynamics and mechanical stability of typical photoactive layers in organic cells is providing a deeper understanding of these high-potential materials.
(Carlisle, Pa.) - With a "virtual campaign season" underway due to the COVID-19 pandemic, social media platforms will be a particularly important way for candidates to build a following and connect with voters. New research on the popularity of Congress members' Instagram posts reveals some surprising factors at play that could elevate their influence on the platform and make for more effective campaigns.