As COVID-19 cases continue to rise worldwide, it is increasingly urgent to understand how climate impacts the continued spread of the coronavirus, particularly as winter virus infections are more common and countries in the northern hemisphere will soon see cooler temperatures.
In a paper in Physics of Fluids, by AIP Publishing, researchers studied the effects of relative humidity, environmental temperature, and wind speed on the respiratory cloud and virus viability. They found that a critical factor for the transmission of the infectious particles, which are immersed in respiratory clouds of saliva droplets, is evaporation.
“Suppose we have a better understanding of the evaporation and its relation to climate effects. In that case, we can more accurately predict the virus concentration and better determine its viability or the potential for virus survival,” said Dimitris Drikakis, one of the authors.
Despite the importance of airborne droplet transmission, research regarding heat and
Researchers at the University of Helsinki have developed a technique in which a computer models visual perception by monitoring human brain signals. In a way, it is as if the computer tries to imagine what a human is thinking about. As a result of this imagining, the computer is able to produce entirely new information, such as fictional images that were never before seen.
The technique is based on a novel brain-computer interface. Previously, similar brain-computer interfaces have been able to perform one-way communication from brain to computer, such as spell individual letters or move a cursor.
As far as is known, the new study is the first where both the computer’s presentation of the information and brain signals were modelled simultaneously using artificial intelligence methods. Images that matched the visual characteristics that participants were focusing on were generated through interaction between human brain responses and a generative neural network.
Often considered the workhorses of the body, proteins are among the most important biomolecules critical to life processes. They provide structural foundation for cells and tissues and perform a dizzying array of tasks, from metabolizing energy and helping cells communicate with one another to defending the body from pathogens and guiding cell division and growth.
Because protein dysfunction is implicated in so many serious diseases, proteins are the primary targets for most therapeutic drugs.
In a new study, Shaopeng Wang and his colleagues describe a method for examining proteins in keen detail. To do this, his group makes clever use of a phenomenon known as surface plasmon resonance (SPR), incorporating it into an innovative type of microscope.
While SPR has been a powerful technique for investigating the world of the very small, including the interactions of bacteria and viruses, the study marks the first occasion when SPR has successfully been
Based on current data measured in the energy, industry, and mobility sectors, restrictions of social life during the corona pandemic can be predicted to lead to a reduction of worldwide carbon dioxide emissions by up to eight percent in 2020. According to the Intergovernmental Panel on Climate Change (IPCC), cumulative reductions of about this magnitude would be required every year to reach the goals of the Paris Agreement by 2030. Recent measurements by researchers of Karlsruhe Institute of Technology (KIT) revealed that concentration of carbon dioxide (CO2) in the atmosphere has not yet changed due to the estimated emission reductions. The results are reported in Remote Sensing (DOI: 10.3390/rs12152387).
The corona pandemic has changed both our working and our private lives. People increasingly work from home, have video conferences instead of business trips, and spend their holidays in their home country. The lower traffic volume also reduces CO
Researchers have demonstrated a new endoscope that uniquely combines photoacoustic and fluorescent imaging in a device about the thickness of a human hair. The device could one day provide new insights into the brain by enabling blood dynamics to be measured at the same time as neuronal activity.
“Combining these imaging modalities could improve our understanding of the brain’s structure and behavior in specific conditions such as after treatment with a targeted drug,” said research team leader Emmanuel Bossy from the CNRS/ Université Grenobe Alpes Laboratoire Interdisciplinaire de Physique. “The endoscope’s small size helps minimize damage to tissue when inserting it into the brains of small animals for imaging.”
In The Optical Society (OSA) journal Biomedical Optics Express, Bossy’s research team, in collaboration with Paul C. Beard’s team from University College London, describe their new multi-modality endoscope and show that it can acquire photoacoustic and fluorescent images of red
Children are struggling with mental health issues more now than perhaps ever before, though the treatment available — therapy, drugs, or both — differs widely from state to state.
Using a national database of insurance claims, Princeton University researchers investigated the type of treatment adolescents — most of whom were around the average age of 12 and suffering from anxiety or depression — receive after a first episode of mental illness.
Less than half of children received any therapy within three months, and 22.5% of children received only drug therapy, the researchers report in the Proceedings of the National Academy of Sciences (PNAS).
Of the children receiving drugs, 45% were prescribed strong, addictive drugs in the benzodiazepine class (like Valium or Xanax), tricyclic antidepressants, or drugs that were not FDA-approved for use in children as a first line of treatment.
The suspension of fertility treatments due to the COVID-19 pandemic has had a variety of psychological impacts on women whose treatments were cancelled, but there are several protective factors that can be fostered to help in the future, according to a new study by Jennifer Gordon and Ashley Balsom of University of Regina, Canada, published 18 September in the open-access journal PLOS ONE.
One in six reproductive-aged couples experiences infertility, and many turn to treatments such as intrauterine insemination (IUI) and in vitro fertilization (IVF), which require many in-person appointments to complete. On March 17, 2020, the American Society of Reproductive Medicine and the Canadian Fertility and Andrology Society announced their recommendations to immediately and indefinitely suspend all in-person fertility treatments in the United States and Canada due to COVID-19.
In the new study, researchers used online social media advertising to recruit 92 women from Canada and the U.S.
Close bonds with the opposite sex can have non-romantic benefits. And not just for people, but for our primate cousins, too.
Drawing on 35 years of data, a new study of more than 540 baboons in Amboseli National Park in Kenya finds that male baboons that have close female friends have higher rates of survival than those who don’t.
Researchers have often assumed that when a male is friendlier to certain females, it’s for the reproductive perks: to better protect his offspring, or to boost his chances of mating with her. But the new study points to an additional potential benefit: female friends may help him live a longer life.
The team’s findings will appear Sept. 21 in a special issue of the journal Philosophical Transactions of the Royal Society B.
It’s well known that people who have close friendships are more likely to live a long life than
Intolerances to chemicals, foods and drugs impact 8%-33% of individuals, studies suggest, yet few people are screened for it at their doctors’ offices.
To address this and increase awareness of chemical intolerance, researchers at The University of Texas Health Science Center at San Antonio (UT Health San Antonio) developed and validated a three-question, yes-or-no survey that primary care providers, allergists, dermatologists and other specialists can incorporate into patient visits. The survey, called the Brief Environmental Exposure and Sensitivity Inventory, or BREESI, can also be used by researchers and patient groups, and for epidemiological studies in exposed populations.
Sept. 16 in the journal PLOS ONE, the researchers reported that the BREESI accurately predicts scores on a comprehensive 50-question survey called the Quick Environmental Exposure and Sensitivity Inventory (QEESI). The QEESI, which the UT Health San Antonio group introduced online in 2014, is available at no charge to patients and clinicians.
In a paper published today in Nature Astronomy, researchers report the first ever clear images of nanojets — bright thin lights that travel perpendicular to the magnetic structures in the solar atmosphere, called the corona — in a process that reveals the existence of one of the potential coronal heating candidates: nanoflares.
In pursuit of understanding why the Sun’s atmosphere is so much hotter than the surface, and to help differentiate between a host of theories about what causes this heating, researchers turn to NASA’s Interface Region Imaging Spectrograph (IRIS) mission. IRIS was finely tuned with a high-resolution imager to zoom in on specific hard-to-see events on the Sun.
Nanoflares are small explosions on the Sun — but they are difficult to spot. They are very fast and tiny, meaning they are hard to pick out against the bright surface of the Sun. On April 3, 2014, during what’s