ScienceDaily: Latest Science News

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• Nanoparticle vaccine for COVID-19
• Jellyfish create a 'virtual wall' to enhance performance
• Tiny wireless device sheds light on combating obesity
• Chandra X-ray Observatory studies extraordinary magnetar
• We hear what we expect to hear
• Single-dose COVID-19 vaccine triggers antibody response in mice
• How 'Iron Man' bacteria could help protect the environment
• 'Invisible' stem cells evade natural killer cells using immune 'off-switch'
• Scientists paint multicolor atlas of the brain
• Tasmanian tiger pups found to be extraordinary similar to wolf pups
• Nanocrystals that eradicate bacteria biofilm
• Which came first, sleep or the brain?
• Scientists develop a cheaper method that might help create fuels from plants
• Religion, psychology share methods for reducing distress, study finds
• Perceiving prosthesis as lighter thanks to neurofeedback
• Antibiotic resistance from random DNA sequences
• Heading outdoors keeps lockdown blues at bay
• Entangling electrons with heat
• Engineers find antioxidants improve nanoscale visualization of polymers
• High-speed atomic force microscopy visualizes cell protein factories
• New mechanism underlying male infertility
• Cancer cells hibernate like bears to evade harsh chemotherapy
• Patterns in primordial germ cell migration
• Ancient DNA analysis reveals Asian migration and plague

Nanoparticle vaccine for COVID-19 Posted: 08 Jan 2021 11:21 AM PST Researchers are working to develop a single-dose vaccine for SARS-CoV-2 that could potentially be stored at room temperature.

Jellyfish create a 'virtual wall' to enhance performance Posted: 08 Jan 2021 09:34 AM PST A new discovery finds that jellyfish create a 'ground effect,' similar to how air squeezes between an airplane and ground during take-off, which builds pressure and a force that boosts performance. Never before has it been proven that an animal can create this phenomenon away from a solid boundary, let alone the open ocean.

Tiny wireless device sheds light on combating obesity Posted: 08 Jan 2021 09:34 AM PST In a new study, researchers have described a medical device that might help with weight loss and requires a simpler operative procedure for implantation.

Chandra X-ray Observatory studies extraordinary magnetar Posted: 08 Jan 2021 09:01 AM PST In 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA's Chandra X-ray Observatory help support the idea that it is also a pulsar, meaning it emits regular pulses of light.

We hear what we expect to hear Posted: 08 Jan 2021 09:01 AM PST Neuroscientists show that the entire auditory pathway represents sounds according to prior expectations.

Single-dose COVID-19 vaccine triggers antibody response in mice Posted: 08 Jan 2021 09:01 AM PST Researchers have developed a nanoparticle vaccine that elicits a virus-neutralizing antibody response in mice after only a single dose.

How 'Iron Man' bacteria could help protect the environment Posted: 08 Jan 2021 09:01 AM PST In a new study, researchers show that microbes are capable of an incredible feat that could help reclaim a valuable natural resource and soak up toxic pollutants.

'Invisible' stem cells evade natural killer cells using immune 'off-switch' Posted: 08 Jan 2021 08:11 AM PST Scientists have discovered a new way to control the immune system's 'natural killer' (NK) cells, a finding with implications for novel cell therapies and tissue implants that can evade immune rejection. The findings could also be used to enhance the ability of cancer immunotherapies to detect and destroy lurking tumors.

Scientists paint multicolor atlas of the brain Posted: 08 Jan 2021 08:11 AM PST Scientists have engineered a coloring technique, known as NeuroPAL (a Neuronal Polychromatic Atlas of Landmarks), which makes it possible to identify every single neuron in the brain of a worm.

Tasmanian tiger pups found to be extraordinary similar to wolf pups Posted: 08 Jan 2021 08:10 AM PST Researchers find more similarities between the thylacine and wolf.

Nanocrystals that eradicate bacteria biofilm Posted: 08 Jan 2021 08:10 AM PST A team finds ways to control the surface texture of nanostructures.

Which came first, sleep or the brain? Posted: 08 Jan 2021 08:10 AM PST In work that could help unravel the origin of sleep, an international team of researchers has shown that tiny, water-dwelling hydras not only show signs of a sleep-like state despite lacking central nervous systems but also respond to molecules associated with sleep in more evolved animals. The new results suggest that many sleep-related mechanisms developed before the brain and may have been conserved during the evolution of central nervous systems.

Scientists develop a cheaper method that might help create fuels from plants Posted: 08 Jan 2021 08:10 AM PST Scientists have figured out a cheaper, more efficient way to conduct a chemical reaction at the heart of many biological processes, which may lead to better ways to create biofuels from plants.

Religion, psychology share methods for reducing distress, study finds Posted: 08 Jan 2021 08:10 AM PST Religious people facing life crises rely on emotion-regulation strategies that psychologists also use, a new study finds. They look for positive ways of thinking about hardship, a practice known to psychologists as 'cognitive reappraisal.' They also tend to have confidence in their ability to cope with difficulty, a trait called 'coping self-efficacy.' Both have been shown to reduce symptoms of anxiety and depression.

Perceiving prosthesis as lighter thanks to neurofeedback Posted: 08 Jan 2021 06:39 AM PST Transmitting sensory signals from prostheses to the nervous system helps leg amputees to perceive prosthesis as part of their body. While amputees generally perceive their prostheses as heavy, this feedback helps them to perceive the prostheses as significantly lighter, researchers have shown.

Antibiotic resistance from random DNA sequences Posted: 08 Jan 2021 06:38 AM PST An important and still unanswered question is how new genes that cause antibiotic resistance arise. In a new study, researchers have shown how new genes that produce resistance can arise from completely random DNA sequences.

Heading outdoors keeps lockdown blues at bay Posted: 08 Jan 2021 05:41 AM PST A new study has found that spending time outdoors and switching off devices, such as smartphones, is associated with higher levels of happiness during a period of COVID-19 restrictions.

Entangling electrons with heat Posted: 08 Jan 2021 05:41 AM PST Quantum entanglement is key for next-generation computing and communications technology, researchers can now produce it using temperature differences.

Engineers find antioxidants improve nanoscale visualization of polymers Posted: 08 Jan 2021 05:41 AM PST Reactive molecules, such as free radicals, can be produced in the body after exposure to certain environments or substances and go on to cause cell damage. Antioxidants can minimize this damage by interacting with the radicals before they affect cells.

High-speed atomic force microscopy visualizes cell protein factories Posted: 08 Jan 2021 05:41 AM PST Factor-pooling by ribosomes caught on video using state-of-art high-speed atomic force microscopy technology.

New mechanism underlying male infertility Posted: 07 Jan 2021 01:47 PM PST One essential component of each eukaryotic cell is the cytoskeleton. Microtubules, tiny tubes consisting of a protein called tubulin, are part of this skeleton of cells. Cilia and flagella, which are antenna-like structures that protrude from most of the cells in our body, contain many microtubules. An example of flagell is the sperm tail, which is essential for male fertility and thus for sexual reproduction. The flagellum has to beat in a very precise and coordinated manner to allow progressive swimming of the sperm. Failure to do so can lead to male infertility.

Cancer cells hibernate like bears to evade harsh chemotherapy Posted: 07 Jan 2021 01:47 PM PST Researchers show that cancer cells hijack an evolutionary conserved program to survive chemotherapy. Furthermore, the researchers show that novel therapeutic strategies aimed at specifically targeting cancer cells in this slow-dividing state can prevent cancer regrowth.

Patterns in primordial germ cell migration Posted: 07 Jan 2021 09:52 AM PST Biologists and mathematicians have investigated how primordial germ cells behave in zebrafish embryos when not influenced by a guidance cue and developed software that merges 3D microscopy images of multiple organisms. This made it possible to recognize patterns in the cell distribution and thus to highlight tissues that influence cell migration.

Ancient DNA analysis reveals Asian migration and plague Posted: 07 Jan 2021 08:24 AM PST Ancient DNA reveals a history of migrations, continuity, and diseases in northeastern Asia.

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