Science & Technology
Research reveals structure of a human endogenous reverse transcriptase
The crystal structure of a human endogenous reverse transcriptase has similarities to HIV reverse transcriptase, a well-known tractable drug target, which will help design drugs to treat cancer and other diseases, according to a study co-authored by a …
Bacteria for blastoff: Using microbes to make supercharged new rocket fuel
Biofuel scientists used an oddball molecule made by bacteria to develop a new class of sustainable biofuels powerful enough to launch rockets. The candidate molecules have greater projected energy density than any petroleum product, including the leadi…
Researchers discover new leukemia-killing compounds
Researchers have discovered potential new drugs that target mitochondria in cancer cells. Their study in the journal Leukemia describes the compounds’ potential for killing leukemia cells when administered by themselves or in combination with other che…
Gemini North spies ultra-faint fossil galaxy discovered on outskirts of Andromeda
An unusual ultra-faint dwarf galaxy has been discovered on the outer fringes of the Andromeda Galaxy thanks to the sharp eyes of an amateur astronomer. Follow-up by professional astronomers revealed that the dwarf galaxy — Pegasus V — contains very f…
Borrowed gene helps maize adapt to high elevations, cold temperatures
An important gene in maize called HPC1 modulates certain chemical processes that contribute to flowering time, and has its origins in ‘teosinte mexicana,’ a precursor to modern-day corn that grows wild in the highlands of Mexico. The findings provide i…
California’s Dixie Fire shows impact of legacy effects, prescribed burns
The 2021 Dixie Fire burned over nearly 1 million acres in California and cost $637 million to suppress, making it the largest and most expensive wildfire to contain in state history. Fire history largely determined how severely the wildfire burned, and…
The hawk has landed: Braking mid-air to prioritize safety over energy or speed
New research using computer simulations and Hollywood-style motion capture shows how birds optimize their landing maneuvers for an accurate descent.
Signaling molecule potently stimulates hair growth
Researchers have discovered that a signaling molecule called SCUBE3 potently stimulates hair growth and may offer a therapeutic treatment for androgenetic alopecia, a common form of hair loss in both women and men.
Developmentally arrested IVF embryos can be coaxed to divide
Why do two-thirds of in vitro fertilization (IVF) embryos go into developmental arrest? A new study shows that many embryos stored for IVF undergo characteristic genetic and metabolic changes that inhibit development. These results help explain the los…
Scientists engineer synthetic DNA to study ‘architect’ genes
Researchers have created artificial Hox genes — which plan and direct where cells go to develop tissues or organs — using new synthetic DNA technology and genomic engineering in stem cells. Their findings confirm how clusters of Hox genes help cells …
Dissolving implantable device relieves pain without drugs
Researchers have developed a small, soft, flexible implant that relieves pain on demand and without the use of drugs. The first-of-its-kind device could provide a much-needed alternative to opioids and other highly addictive medications. It works by so…
Sleep triggered by stress can help mice cope with later anxiety
Stress boosts a kind of sleep in mice that subsequently relieves anxiety, according to new research that also pinpoints the mechanism responsible.
Floating in space might be fun, but study shows it’s hard on earthly bodies
Bone loss happens in humans — as we age, get injured, or any scenario where we can’t move the body, we lose bone. Understanding what happens to astronauts and how they recover is incredibly rare. It lets us look at the processes happening in the body …
Cosmological thinking meets neuroscience in new theory about brain connections
A collaboration between a former cosmologist and a computational neuroscientist generates a new way to identify essential connections between brain cells.
Optical fiber imaging method advances studies of Alzheimer’s disease
An optical fiber as thin as a strand of hair holds promise for use in minimally invasive deep-tissue studies of patients’ brains that show the effects Alzheimer’s disease and other brain disorders. The challenge is efficiently increasing image resoluti…
New flood maps clarify the risk homeowners face
Flooding in urban areas cost Americans more than $106 billion between 1960 and 2016, damaging property, disrupting businesses and claiming lives in the process. Now, new research outlines a simplified, cost-effective method for developing flood maps th…
Building explainability into the components of machine-learning models
Researchers have created a taxonomy and outlined steps that developers can take to design features in machine-learning models that are easier for decision-makers to understand.
Study reveals an unprecedented change in Europe’s fire regime
A study reveals an unprecedented change in the fire regime in Europe which is related to climate change. The affected areas are in Southern, Central and Northern Europe but this historical change in Europe’s fire regime is more intense in the Mediterra…