Researchers found that starlings sleep five hours less per night during the summer and two hours less under full-moon nights. This study provides new insights into flexible sleep regulation in birds, highlighting the importance of natural conditions for understanding sleep patterns.
Lactococcus lactis bacteria use two amino acid transport systems to acquire methionine under low-methionine conditions. The choice of system is maintained over multiple generations, suggesting a strategy of bet-hedging or division of labor to adapt to changing environmental conditions.
Researchers discovered 46 drugs that block bacterial competence, preventing the spread of antibiotic resistance in mice and human lung cells. These 'anti-evolution drugs' could be combined with antibiotics to extend their lifespan.
Scientists used computer simulations to study the interaction between actin and cell membranes, revealing that calcium ions play a key role in binding. The results provide new insights into the fundamental process of actin binding to membrane lipids.
Scientists at the University of Groningen mapped the structure of a transport complex in bacteria, revealing that it works very efficiently using three independent lifts. This discovery has implications for human brain cells, where a similar transporter plays a vital role in signal transduction.
Researchers at University of Groningen develop novel artificial enzyme using unnatural amino acid and copper complex, demonstrating potential for improved industrial chemical catalysis. The study showcases the power of combining abiological components to achieve active site creation, paving way for new enzymatic options.
Scientists have created valley-coherent photoluminescence in tungsten disulfide flakes using a silver sawtooth nanoslit array. The results achieve coherent and polarized light at room temperature, paving the way for integrated nanophotonics.
University of Groningen physicists have visualized hydrogen atoms at the titanium/titanium hydride interface, resolving a long-standing challenge in materials science. The new technique allows for the observation of both heavy titanium and light hydrogen atoms, shedding light on their interaction and properties.
Scientists use molecular motors to manipulate protein structure, directing stem cells to differentiate into bone cells. The movement of motor molecules induces subtle structural changes, affecting cell attachment and behavior, ultimately leading to altered cell fate.
A study published in PLOS ONE found that carcasses of dead deer have a positive effect on biodiversity in the Oostvaardersplassen nature reserve. Plants near carcasses grew five times larger, attracting more insects and predators. The researchers call for relaxing regulations to allow dead large grazers to remain, benefiting other natu...
Scientists at the University of Groningen have created a new self-assembled monolayer using buckyballs functionalized with ethylene glycol, which remains chemically unchanged for several weeks when exposed to air. This makes it easier to use in research and devices, and could lead to breakthroughs in molecular electronics.
Simulations suggest a 15% chance of a temporary slowdown or pause in the North Atlantic Current within the next 100 years. The current's collapse is considered unlikely due to non-linear behavior and rapid changes in precipitation.
University of Groningen scientists have successfully reconstructed the ancestral genetic sequences for three FMO genes, revealing the structure of these enzymes and their role in metabolizing toxic substances. The results provide insight into how FMOs work, which could lead to the design of drugs activated by these enzymes.
Researchers from University of Groningen create a molecular motor-based catalyst that switches the preference of anion-binding, enabling selective production of one enantiomer. The discovery has potential applications in pharmaceuticals and polymer production.
Scientists have found a way to harness excess energy from photons that are too energetic for materials to absorb, potentially increasing the efficiency of solar panels. By combining a perovskite with an acceptor material, hot electrons can be readily absorbed, even without slowing down their loss of energy.
Researchers at the University of Groningen have created a new type of superconductor using suspended layers of molybdenum disulfide. The superconductivity is strongly protected against external magnetic fields, even in extremely strong static magnetic fields.
Scientists at the University of Groningen discovered that an unstable protein, Cln3, triggers cell division in budding yeast by assessing environmental conditions favorability for protein production. The concentration of Cln3 peaks before initiating division, indicating a decoupling between protein synthesis and metabolic processes.
Research reveals that sanderlings migrating to West Africa have lower survival rates, arrive late at breeding grounds, and skip their first breeding season. The study suggests that the costs of longer migratory flights outweigh benefits in winter habitats.
A study by Barbara Helm has shown that migratory birds' internal clocks have shifted forward in response to climate change, allowing them to arrive on their breeding grounds before the peak food abundance. This adaptation suggests that the birds' 'annual clock' can evolve quickly in response to changing environmental conditions.
Researchers have created a device that controls spin currents using a double layer of graphene on top of tungsten disulphide. The new technique enables the use of spin currents in transistors, which could be more energy-efficient than traditional electronics.
The researchers developed a microfluidic platform to study an artificial light-harvesting complex inspired by photosynthetic bacteria. They found that at low light intensities, the system absorbs photons efficiently, while high intensities trigger the release of excess energy as a safety valve.
Physicists at the University of Groningen created curved spin transport channels, enabling independent control over charge and spin currents. This discovery could lead to more energy-efficient electronics by allowing spin injectors and detectors to be integrated into modern 3D circuitry.
Researchers at the University of Groningen constructed a synthetic metabolic network for physicochemical homeostasis, producing ATP in synthetic vesicles. The system uses arginine and ornithine to maintain ionic balance and drive metabolic processes.
Researchers at the University of Groningen have successfully created a two-dimensional spin transistor in graphene, which uses charge-to-spin conversion to generate spin currents. The spin transistor can be switched on and off using an electric field, enabling the creation of all-electrical spin circuits.
Scientists at the University of Groningen observed a phenomenon in ferroelastic material barium titanate that resembles spatial chaos in non-linear dynamical systems. This could lead to highly diverse responses in adaptable neuromorphic electronics, enabling complex computing.
Researchers discovered Mycobacterium tuberculosis produces a unique type of antacid that prevents phagosomes from fusing with lysosomes, allowing the bacteria to survive. The mechanism involves the production of 1-tuberculosinyladenosine, an acid that reduces acidity and hinders immune cell digestion.
Recent studies suggest a link between Arctic sea ice decline and mid-latitude cold winters, but a new study finds no causal relationship. Analysis of climate models reveals that both changes are caused by unusual atmospheric circulation patterns, not the Arctic sea ice itself.
Recent calculations by University of Groningen researchers suggest that bird species in New Zealand will need around 50 million years to regain their lost diversity. However, the fate of endangered species like the kakapo and kiwi could add millions more years to this timeline.
Researchers at the University of Groningen elucidated the human ASCT2 structure, providing unprecedented insight into its workings and potential as a target for new anti-cancer drugs. The 'one-gate elevator' mechanism reveals a surprising similarity in release and catch mechanisms on either side of the cell membrane.
A new method for synthesizing and evaluating large numbers of potential drug leads has been developed by the University of Groningen. This technique uses acoustic dispensing to create thousands of variant molecules in a high-throughput system, making it possible to quickly identify promising candidates.
Scientists have developed a method to transport individual droplets using transverse surface waves, enabling more efficient applications in lab-on-a-chip systems and self-cleaning surfaces. This technology also opens up possibilities for harvesting moisture from the air and improving blood tests.
Researchers have developed a new class of molecular photoswitches that meet key requirements for molecular photocontrol. The switches can be controlled using visible light and have improved properties compared to previous designs.
Scientists have caught a new class of molecular switches in action, revealing the full sequence of structural transformations. The discovery sheds light on how thermal steps work and provides new control mechanisms to improve switch performance.
A team of scientists, led by microbiologist Marjon de Vos, conducted a review to explore the application of evolutionary theory in clinical microbiology. By analyzing microbial communities and genetic data, they identified potential solutions for treating cystic fibrosis patients and limiting the spread of antibiotic resistance.
Researchers have discovered needle-like structures in positively charged lightning leaders that store negative charges, causing repeated discharges to the ground. This new finding explains why lightning often strikes twice and provides a deeper understanding of lightning development.
Scientists at the University of Groningen have created a light-controlled switch that can be used to inhibit or stimulate bacterial communication. The molecule was tested on Pseudomonas aeruginosa and showed a strong response to light, inducing quorum sensing signals.
Researchers have developed a high-throughput method to produce and screen engineered antimicrobial lanthipeptides, which could lead to the creation of new antibiotics. The method involves synthesizing DNA strands coding for different ring combinations and screening them for antimicrobial potential using micro-alginate beads.
A new study has found that increased human activity along the boundaries of the Serengeti-Mara ecosystem is having a detrimental impact on plants, animals, and soils. The study reveals how population growth and livestock in buffer zones are reducing available migration routes for wildebeest, zebras, and gazelles.
University of Groningen scientists have successfully produced high-quality solar cells using a novel 'doctor-blade' technique. The technique enables the production of large-scale, stable and efficient perovskite solar cells with improved photoluminescence and stability.
A study by University of Groningen biologists found that female Seychelles warblers who receive help from subordinates age more slowly and live longer. The birds' telomere length, a marker of aging, also decreases with assistance. This positive feedback system suggests that cooperative breeding can increase an individual's lifespan.
Organic chemists at the University of Groningen have created an ordered array of light-driven rotary motors in a 3D solid-state material, achieving cooperative action. The system contains 3 x 10^20 motors per cubic centimeter, all running in unison and performing work on a macro scale.
Researchers discovered that cytochrome c binds to specific membrane domains and regulates the oxidation of cardiolipin, a key player in apoptosis. This finding could lead to new drug targets for treating neurodegenerative diseases like Huntington's disease.
Researchers have discovered a novel glycocin, a small antimicrobial peptide with a sugar group attached, produced by the thermophilic bacterium Aeribacillus palladius. The compound has been successfully expressed in E. coli bacteria, making it easier to produce and investigate. This breakthrough could lead to new alternatives for biofu...
Researchers at University of Groningen developed nanopores that can measure peptide mass, offering a cheap and portable solution for proteomics research. The smallest pores produced have a resolution of around 40 Dalton, allowing for the identification of peptides with varying chemical compositions.
Poppies' colorful petals contain high concentrations of pigment, which causes efficient scattering of light. The unique shape of the pigmented cells creates air-filled gaps that reflect light on the cell/air boundary, resulting in striking colors.
Researchers at the University of Groningen have produced devices with stable Germanene, revealing its electronic properties. The material exhibits insulating, semiconducting, and metallic conducting behavior depending on heat treatment, making it suitable for spintronic device applications.
Scientists from the University of Groningen created block copolymers from PVDF that preserve its ferroelectricity while allowing tunable characteristics. These copolymers enable various applications, including flexible organic electronics and energy storage.
A theoretical model has been developed to describe how chiral molecules can create a spin current, potentially revolutionizing electronic devices. The model predicts that certain circuits with four contacts will allow the detection of this effect.
Researchers at the University of Groningen have developed an enzyme-based polymerization method to create a more environmentally friendly alternative to traditional polyethylene terephthalate (PET). By using a commercially available enzyme, they successfully produced furan-based copolyesters with improved properties.
Researchers found that gut microbiota can convert levodopa into dopamine, reducing its effectiveness in treating Parkinson's disease. The study suggests that the presence of bacterial tyrosine decarboxylase enzyme contributes to this effect.