ScienceDaily: Latest Science News

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• COVID-19 patients can be categorized into three groups
• Study identifies possible COVID-19 drugs -- including several that are FDA-approved
• COVID-19 mask study finds layering, material choice matter
• From stardust to pale blue dot: Carbon's interstellar journey to Earth
• Keep pace: Walking with a partner is great but might slow you down
• Serving size, satisfaction influence food waste on campus
• Experimental therapy for parasitic heart disease may also help stop COVID-19
• How pathogenic bacteria weather the slings and arrows of infection
• Lanternfly's attraction to vertical silhouettes could help monitor, trap it
• Toddler TV time not to blame for attention problems
• How the Chicxulub impactor gave rise to modern rainforests
• Qubits composed of holes could be the trick to build faster, larger quantum computers
• Mapping policy for how the EU can reduce its impact on tropical deforestation
• Scientists turn to deep learning to improve air quality forecasts
• Kirigami-style fabrication may enable new 3D nanostructures
• New method uses device cameras to measure pulse, breathing rate and could help telehealth
• Diversity can prevent failures in large power grids
• Molecular 'switch' turns precursors into kidney cells
• Replacing what was lost: A novel cell therapy for type I diabetes mellitus

COVID-19 patients can be categorized into three groups Posted: 02 Apr 2021 01:29 PM PDT Researchers identify three clinical COVID-19 phenotypes, reflecting patient populations with different comorbidities, complications and clinical outcomes.

Study identifies possible COVID-19 drugs -- including several that are FDA-approved Posted: 02 Apr 2021 01:29 PM PDT Researchers have identified nine potential new COVID-19 treatments, including three that are already approved by the U.S. Food and Drug Administration for treating other diseases. The team screened thousands of existing drugs and drug-like molecules for their ability to inhibit the replication of the COVID-19-causing coronavirus, SARS-CoV-2.

COVID-19 mask study finds layering, material choice matter Posted: 02 Apr 2021 11:33 AM PDT Researchers report results of a COVID-19 mask study showing which materials had the greatest filtration efficiency. The findings underscore the critical importance of layering and universal mask wearing to protect people from exposure.

From stardust to pale blue dot: Carbon's interstellar journey to Earth Posted: 02 Apr 2021 11:17 AM PDT We are made of stardust, the saying goes, and a pair of studies finds that may be more true than we previously thought.

Keep pace: Walking with a partner is great but might slow you down Posted: 02 Apr 2021 11:17 AM PDT A new study shows that couples often decreased their speed when walking together. Speed further decreased if they were holding hands.

Serving size, satisfaction influence food waste on campus Posted: 02 Apr 2021 10:55 AM PDT Understanding what drives food choices can help high-volume food service operations like universities reduce waste, according to a new study.

Experimental therapy for parasitic heart disease may also help stop COVID-19 Posted: 02 Apr 2021 10:38 AM PDT Researchers found that the chemical inhibitor K777 reduces the coronavirus' ability to infect cell lines by blocking human enzyme cathepsin L; clinical trials are underway.

How pathogenic bacteria weather the slings and arrows of infection Posted: 02 Apr 2021 08:41 AM PDT Infectious diseases are a leading cause of global mortality. During an infection, bacteria experience many different stresses. In this arms race to outwit their competition, bacteria have evolved mechanisms to stay alive in the face of adversities. One such mechanism is the stringent response pathway. Understanding how the activation of the stringent response pathway is controlled can provide clues to treat infection.

Lanternfly's attraction to vertical silhouettes could help monitor, trap it Posted: 02 Apr 2021 08:40 AM PDT Like moths to a flame, spotted lanternflies are visually drawn toward and seemingly captivated by vertical objects such as utility poles, a behavior that could be valuable in predicting where the pests might be heading, according to entomologists.

Toddler TV time not to blame for attention problems Posted: 02 Apr 2021 08:40 AM PDT It's a common belief that exposure to television in toddlerhood causes attention-deficit problems in school-age children -- a claim that was born from the results of a 2004 study that seemed to show a link between the two. However, a further look at the evidence suggests this is not true.

How the Chicxulub impactor gave rise to modern rainforests Posted: 02 Apr 2021 06:59 AM PDT The asteroid that took out the dinosaurs left the planet in darkness. What did rainforests in South America look like before the impact, and how did they change as a result?

Qubits composed of holes could be the trick to build faster, larger quantum computers Posted: 02 Apr 2021 06:59 AM PDT A new study demonstrates a path towards scaling individual qubits to a mini-quantum computer, using holes. The study identifies a 'sweet spot' where the qubit is least sensitive to noise (ensuring longer retention of information) and simultaneously can be operated the fastest.

Mapping policy for how the EU can reduce its impact on tropical deforestation Posted: 02 Apr 2021 06:59 AM PDT EU imports of products contribute significantly to deforestation in other parts of the world. Researchers evaluated thousands of policy proposals for how the EU could reduce this impact, to assess which would have the largest potential to reduce deforestation.

Scientists turn to deep learning to improve air quality forecasts Posted: 02 Apr 2021 06:59 AM PDT Air pollution from the burning of fossil fuels impacts human health but predicting pollution levels at a given time and place remains challenging, according to a team of scientists who are turning to deep learning to improve air quality estimates. Results of the team's study could be helpful for modelers examining how economic factors like industrial productivity and health factors like hospitalizations change with pollution levels.

Kirigami-style fabrication may enable new 3D nanostructures Posted: 02 Apr 2021 06:59 AM PDT A new technique that mimics the ancient Japanese art of kirigami may offer an easier way to fabricate complex 3D nanostructures for use in electronics, manufacturing and health care.

New method uses device cameras to measure pulse, breathing rate and could help telehealth Posted: 02 Apr 2021 05:42 AM PDT A team has developed a method that uses the camera on a person's smartphone or computer to take their pulse and breathing rate from a real-time video of their face.

Diversity can prevent failures in large power grids Posted: 01 Apr 2021 06:16 PM PDT Power grids counterintuitively thrive on diversity. Heterogeneity among power generators can help grids stabilize.

Molecular 'switch' turns precursors into kidney cells Posted: 01 Apr 2021 06:16 PM PDT Kidney development is a balancing act between the self-renewal of stem and progenitor cells to maintain and expand their numbers, and the differentiation of these cells into more specialized cell types. Scientists demonstrates the importance of a molecule called beta-catenin in striking this balance.

Replacing what was lost: A novel cell therapy for type I diabetes mellitus Posted: 01 Apr 2021 08:28 AM PDT Researchers have developed a novel device for the safe and effective transplantation of human pancreatic beta-cells in type I diabetes mellitus (T1D). By constructing a millimeter-thick graft encapsulating beta-cells and transplanting it in diabetic mice, they were able to show that the device was removable for up to 1 year and without a significant foreign body response. This study demonstrates a novel option for cell therapy for T1D.

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