Showing 20 articles starting at article 1401

< Previous 20 articles        Next 20 articles >

Categories: Biology: Microbiology, Physics: Optics

Return to the site home page

     (via sciencedaily.com)     Original source 

Researchers have harnessed the power of baker's yeast to create a cost-effective and highly efficient approach for unraveling how plants synthesize medicinal compounds, and used the new method to identify key enzymes in a kratom tree.

     (via sciencedaily.com)     Original source 

Particle accelerators are crucial tools in a wide variety of areas in industry, research and the medical sector. The space these machines require ranges from a few square meters to large research centers. Using lasers to accelerate electrons within a photonic nanostructure constitutes a microscopic alternative with the potential of generating significantly lower costs and making devices considerably less bulky. Until now, no substantial energy gains were demonstrated. In other words, it has not been shown that electrons really have increased in speed significantly. Two teams of laser physicists have just succeeded in demonstrating a nanophotonic electron accelerator.

     (via sciencedaily.com)     Original source 

A vaccine designed to protect against three different deadly coronaviruses shows success in mouse studies, demonstrating the viability of a pan-coronavirus vaccine developed by researchers at the Duke Human Vaccine Institute.

     (via sciencedaily.com)     Original source 

A microscopic discovery will not only enable scientists to understand the microbial world around us but could also provide a new way to control CRISPR-Cas biotechnologies.

     (via sciencedaily.com)     Original source 

Children fall broadly into four eating categories, according to new research, and parents feed their children differently depending on those categories.  

     (via sciencedaily.com)     Original source 

Attempts to break the diffraction limit with 'super lenses' have all hit the hurdle of extreme visual losses. Now physicists have shown a new pathway to achieve superlensing with minimal losses, breaking through the diffraction limit by a factor of nearly four times. The key to their success was to remove the super lens altogether.

     (via sciencedaily.com)     Original source 

Octopuses are fascinating animals -- and serve as important model organisms in neuroscience, cognition research and developmental biology. To gain a deeper understanding of their biology and evolutionary history, validated data on the composition of their genome is needed, which has been lacking until now. Scientists have now been able to close this gap and, in a new study, determined impressive figures: 2.8 billion base pairs -- organized in 30 chromosomes. What sounds so simple is the result of complex, computer-assisted genome analyses and comparisons with the genomes of other cephalopod species.

     (via sciencedaily.com)     Original source 

Physicists have used a small glass bulb containing an atomic vapor to demonstrate a new form of antenna for radio waves. The bulb was 'wired up' with laser beams and could therefore be placed far from any receiver electronics.

     (via sciencedaily.com)     Original source 

Research identifies links between gut bacteria, inflammation and brain changes associated with Alzheimer's disease. The findings suggest that Alzheimer's symptoms can be transferred via the gut microbiota.

     (via sciencedaily.com)     Original source 

Different strains of E. coli can outcompete one another to take over the gut, a new study reveals.

     (via sciencedaily.com)     Original source 

The DNA double helix is composed of two DNA molecules whose sequences are complementary to each other. The stability of the duplex can be fine-tuned in the lab by controlling the amount and location of imperfect complementary sequences. Fluorescent markers bound to one of the matching DNA strands make the duplex visible, and fluorescence intensity increases with increasing duplex stability. Now, researchers have succeeded in creating fluorescent duplexes that can generate any of 16 million colors -- a work that surpasses the previous 256 colors limitation. This very large palette can be used to 'paint' with DNA and to accurately reproduce any digital image on a miniature 2D surface with 24-bit color depth.

     (via sciencedaily.com)     Original source 

A new study has revealed a significant association between eating disorders and physical multimorbidity, shedding new light on the health risks faced by people with these conditions. The research explores the complex relationship between eating disorders, physical health, and other issues that can influence it.

     (via sciencedaily.com)     Original source 

Infections with cytomegalovirus (CMV) are extremely common and often pose no major threat to the vast majority of people. They can however be deadly for people whose immune system is weakened, e.g., after bone marrow transplantation. Current treatments against CMV infections are very limited and can have severe side effects. Researchers now propose a new way to protect against CMV. Instead of targeting the virus, their approach boosts the weak immune system and lets it fight the virus on its own.

     (via sciencedaily.com)     Original source 

A new study shows that blue light kills both dried cells and biofilms of Listeria monocytogenes.

     (via sciencedaily.com)     Original source 

The legendary Alexander Fleming, who famously discovered penicillin, once said 'never to neglect an extraordinary appearance or happening.' And the path of science often leads to just that. New research is turning the page in our understanding of harmful bacteria and how they turn on certain genes, causing disease in our bodies.

     (via sciencedaily.com)     Original source 

Researchers have discovered how the fungus Candida albicans enters the brain, activates two separate mechanisms in brain cells that promote its clearance, and, important for the understanding of Alzheimer's disease development, generates amyloid beta (Ab)-like peptides, toxic protein fragments from the amyloid precursor protein that are considered to be at the center of the development of Alzheimer's disease.

     (via sciencedaily.com)     Original source 

A bacterium found in the sea can degrade a plastic that otherwise resists microbial breakdown in marine environments.

     (via sciencedaily.com)     Original source 

Scientists have theoretically predicted that light can be bent under pseudogravity. A recent study by researchers using photonic crystals has demonstrated this phenomenon. This breakthrough has significant implications for optics, materials science, and the development of 6G communications.  

     (via sciencedaily.com)     Original source 

A research team has discovered a fundamental mechanism that helps the dreaded hospital pathogen Acinetobacter baumannii to survive. This mechanism explains why the pathogen is difficult to eradicate in hospitals and why infections flare up again and again in patients: When living conditions become too unfavorable for the bacteria, they fall into a kind of slumber. In this state, conventional diagnostic methods can no longer detect them nor is it possible to kill them off. When living conditions improve again, they awaken from this 'deep sleep'.

     (via sciencedaily.com)     Original source 

When Hurricane Ian struck southwest Florida in September 2022, it unleashed a variety of Vibrio bacteria that can cause illness and death in humans, according to a new study.