What can carbon deposits on Mars tell scientists about whether life could have once existed on the Red Planet? This is what a recent study published in Sci | Space
How can fungi be used as building construction materials? This is what a recent study published in Cell Reports Physical Science hopes to address as a team | Technology
“Vaping and dabbing were most common among young adults aged 18–24 years. Trends in both of these routes of use have increased among adolescents and young adults.”
How does the average U.S. adult consume marijuana? This is what a recent report published by the Centers for Disease Control and Prevention (CDC) hopes to address as a team of CDC researchers investigated the range of cannabis products that are used by U.S. adults and which products are used more than others. This report has the potential to help scientists, legislators, and the public better understand cannabis use throughout the United States and develop educational and preventive measures for its use.
The report states, “As the availability and types of cannabis products expand, less is known about how persons consume cannabis. Historically, cannabis has most often been smoked; however, additional routes of use are available, including oral ingestion, vaping, and more recently, dabbing (i.e., inhalation of highly concentrated THC-based oils often heated using a blowtorch).”
For the study, the researchers conducted a survey of 138,625 participants to identify how both the frequency and method of cannabis use and broken up into several age groups. In the end, they found that 14,044 (15.3%) used cannabis with 6,848 (7.9%) using it daily. They found that 79.4% smoked cannabis while eating, vaping, and dabbing comprised 41.6%, 30.3%, and 14.6%, respectively. Additionally, 29.3% of non-Hispanic American Indian or Alaska Native (AI/AN) individuals were found to participate in dabbing, along with 23% of individuals without a high school diploma.
Complex neural circuits likely arose independently in birds and mammals, suggesting that vertebrates evolved intelligence multiple times.
Concentrating light in a volume as small as the wavelength itself is a challenge that is crucial for numerous applications. Researchers from AMOLF, TU Delft, and Cornell University in the U.S. have demonstrated a new way to focus light on an extremely small scale. Their method utilizes special properties of a photonic crystal and works for a broader spectrum of wavelengths than alternative methods. The researchers published their findings in Science Advances on April 18.
I’m writing this from a laptop that’s stalling and refusing to switch between tabs because it’s gotten too warm in the early Indian summer. It’s not like I’m running a hectic workload of video and audio editing tools and multiple browsers at once: this old machine just can’t move heat away from the processor and other internals quickly enough.
That results in throttling, or reducing the clock speed at high temperatures, in order to prevent overheating and damage to the internal components. But a new finding from the University of Virginia School of Engineering and Applied Science could make that a thing of the past – with crystals.
When electronic components like the processor in your laptop are working at full tilt, they can get pretty hot. The same can be said for chips in a range of other devices, and even batteries in electric cars. Now, if these components are squashed into tight spaces, you’re going to see heat build up there and take a long time to dissipate.
One of the co-founders of Elon Musk’s Neuralink Corp. is building a different kind of brain implant.
Using operando electrochemical processes, we found a way to restore oxygen-redox active materials exhibiting structural and voltage decay to their pristine state, providing a framework for the design of functional materials with zero thermal expansion.
For the first time, surgeons have successfully performed a remarkable new heart transplant in which the donor organ never skips a beat in the process, reducing the damage that can occur during such a complex operation. It ushers in a new era of more successful heart transplant surgery.
A team of surgeons at the National Taiwan University Hospital (NTUH) in Taipei undertook the revolutionary operation, during which the donor heart continues beating between the organ removal and transplantation stages. Traditionally, the donor heart would be removed and preserved in cold storage to reduce its workload – during this stage, it’s considered “ischemic time,” or the period during which the organ is cut off from blood supply. This comes with the risk of heart damage and rejection once it’s transplanted into a recipient.
When the heart is deprived of blood, ischemia – a shortage of oxygen – can damage its muscle tissue, or myocardium, reducing function and health once it is transplanted. While an organ set for transplant rarely endures more than a few hours in ischemic time, it can still lead to myocardial damage.