NASA’s Parker Solar Probe has captured unique images of comet C/2020 F3 (NEOWISE) and its two tails. C/2020 F3 (NEOWISE) was discovered on March 27, 2020 by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission. The comet’s nucleus is about 5 km (3 miles) across and is covered with sooty, dark particles. C/2020 F3 [...]
Over time goldenrod plants and the gall flies that feed on them have been one-upping each other in an ongoing competition for survival. Now, a team of researchers has discovered that by detecting the plants' chemical defenses, the insects may have taken the lead.
The quantum spin liquid (QSL) state is an exotic state of matter where the spin of electrons, which generally exhibits order at low temperatures, remains disordered. Now, scientists have developed a new material where a two-dimensional QSL state can be experimentally observed, advancing our knowledge of spin behavior, and getting us closer to next-generation ''spintronic'' devices.
A new study found that Black individuals were twice as likely as White individuals to test positive for COVID-19. The average age of all participants in the study was 46. However, those infected were on average 52 years old, compared to those who tested negative, who were 45 years old on average.
Some mandarin fish species (Sinipercidae) are pure fish-eaters, which feed exclusively on living juvenile fish - also of their own species. A research team has described the genome of four mandarin fish species and thus also identified genes for cannibalistic eating behavior. Knowledge of the connections between the genome and feeding behavior is of interest for sustainable aquaculture.
Astronomers succeeded in detecting 12 stellar flare phenomena on AD Leonis. One of these flares was 20 times larger than those emitted by our own sun, categorizing it a 'superflare'. Subsequent data analysis presents new insight into these explosive phenomena.
This is one of the first comprehensive looks at lung cells using a technology called single-cell RNA sequencing. Instead of examining a mash-up of many cells from a tissue sample, single-cell sequencing allowed researchers in this study to closely examine the individual cells that make up the lungs; to identify their function, and ultimately understand the molecular changes that may be driving the disease.
Paleontologists have found and described the first nearly complete skeleton of Ankylorhiza tiedemani, an extinct large dolphin that lived about 24 million years ago (Oligocene epoch). With a body length of 4.8 m (15.7 feet), Ankylorhiza tiedemani was the largest member of the group Odontoceti (toothed whales) during the Oligocene - a size not surpassed [...]
As we age, the immune system gradually becomes impaired. One aspect of this impairment is chronic inflammation in the elderly, which means that the immune system is constantly active and sends out inflammatory substances. Such chronic inflammation is associated with multiple age-related diseases including arthritis and Alzheimer's disease, and impaired immune responses to infection. One of the questions in ageing research is whether chronic inflammation is a cause of aging, or a consequence of the aging process itself? Scientists have found evidence suggesting that increased inflammation causes the aging process to speed up, and that there is a fine balance between maintaining immune system function and longevity.
A new study published this week in the journal Nature shows that injecting mice with a salt solution (hypertonic saline) leads to the activation of neurons associated with the suprachiasmatic nucleus, the brain’s master circadian clock. Our circadian clock, or circadian rhythm, adapts our body’s cells and organs to changing requirements at different times of [...]
Lopinavir is a drug against HIV, hydroxychloroquine is used to treat malaria and rheumatism. Until recently, both drugs were regarded as potential agents in the fight against the coronavirus SARS-CoV-2. Researchers have now discovered that the concentration of the two drugs in the lungs of Covid-19 patients is not sufficient to fight the virus.
A commentary published in the journal Pediatrics concludes that children infrequently transmit COVID-19 to each other or to adults and that many schools, provided they follow appropriate social distancing guidelines and take into account rates of transmission in their community, can and should reopen in the fall.
Comet C/2020 F3 (NEOWISE), a recently-discovered visitor from distant parts of our Solar System, is putting on a spectacular nighttime display. C/2020 F3 (NEOWISE) is a retrograde comet discovered on March 27, 2020 by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission. “In its discovery images, C/2020 F3 (NEOWISE) appeared as a glowing, fuzzy [...]
In this evidence review, researchers identified 17 randomized control trials comparing therapist-supported cognitive behavioural therapy delivered electronically to face to face cognitive behavioural therapy. The studies were conducted between 2003 and 2018 in the United States, Australia, Netherlands, Switzerland, Sweden and the United Kingdom
Pesticides, pharmaceutical products, and endocrine disruptors are some of the emerging contaminants often found in treated domestic wastewater, even after secondary treatment. Researchers have now tested the effectiveness of a tertiary treatment process using electricity.
Research finds that chatbots -- software applications that conduct online chats via text or text-to-speech -- working for reputable organizations can ease the burden on medical providers and offer trusted guidance to those with symptoms.