Articles tagged with Density
A recent study published in Nature Communications reveals that the nucleus is less dense than the surrounding cytoplasm, despite its rich biomolecular composition. The researchers used light to probe density at microscales and found a consistent nuclear-to-cytoplasmic density ratio across eukaryotes.
Researchers develop a gel polymer electrolyte with a localized high-concentration solvation structure, enabling solid-state batteries to operate at 4.7 V with high energy density and cycling stability. The new electrolyte also exhibits exceptional safety characteristics, including no electrolyte leakage or combustion.
A comprehensive global assessment of ocean current energy identifies high power density areas off the East coast of the U.S. and Eastern coast of Africa, suitable for generating electricity from ocean currents. The study highlights the importance of expanding data collection to refine understanding and unlock the full energy potential ...
A USC study found proteins and pathways involved in inflammation are associated with changes in bone mineral density (BMD) over time. The research identified potential biomarkers that could serve as early indicators of a person's risk for bone health issues later in life.
A study by MIT researchers found that climate change can cause the thermosphere to shrink, reducing atmospheric drag and allowing space junk to remain in orbit for decades. This could lead to increased collisions and debris, threatening the sustainability of satellite operations.
A new federal mandate aims to improve patient awareness about breast density, which affects cancer detection and risk. Women with dense breasts may need supplemental screening, such as MRI, to detect breast cancer earlier, but this comes with potential downsides.
Arati Dasgupta, a leading atomic and plasma physicist at NRL, has been elevated to IEEE Fellow for her groundbreaking research in high-energy density plasmas, atomic physics, and radiation materials. Her work has significantly advanced our understanding of extreme environments and their applications.
Researchers have developed an injectable hydrogel that targets rapid localized increase in bone density. The results show a four- to five-fold increase in bone density in the legs of rats with bone loss. The study combines systemic osteoporosis drugs with local hydrogel injections, offering hope for future fracture prevention therapies.
New research from Washington University in St. Louis found that pawpaw patches reduce herbaceous plant species diversity and total understory community size, creating a habitat where the rules of competition are more random. The presence of pawpaws also makes it challenging for land managers to encourage the growth of understory species.
Researchers found a core-collapsing self-interacting dark matter subhalo is responsible for the peculiar spur and gap features observed in the GD-1 stellar stream. This discovery provides insights into the nature of dark matter itself and offers a new explanation for the observed perturbations.
Researchers have identified a promising new drug, lomonitinib, targeting treatment-resistant acute myeloid leukemia (AML) with FLT-3 mutation. Additionally, they developed a novel compound to target MALT1 protein in chronic lymphocytic leukemia (CLL), aiming to provide better control of the disease.
Researchers propose that small black holes born in the early universe could have left behind hollow planetoids and microscopic tunnels, potentially detectable with telescopes or by monitoring old materials. The study suggests a low probability of primordial black hole passage but emphasizes the potential for discovery.
Scientists have clarified the conditions under which large numbers of 'squishy' grains, similar to those found in biological tissues, undergo a yielding transition from solid-like to fluid-like behavior. The findings provide insights into the roles of mechanical and biochemical processes in biological systems.
A team of scientists leveraged machine learning to find promising compositions for sodium-ion batteries, achieving exceptional energy density. The study trained a model on a database of 100 samples to predict the optimal ratio of elements needed to balance properties like operating voltage and capacity retention.
Researchers developed a crystalline solid that can adsorb and release ammonia, making it easy to recover. The material's high density and ease of desorption make it a promising solution for efficient hydrogen storage.
A study comparing traditional and new hip replacement stems found larger contact areas in certain femur regions with the new stems. Traditional HA stems, however, demonstrated superior long-term preservation of bone density.
Researchers have unveiled insights into how microscopic organisms such as marine plankton move through water with different density layers. The study reveals two types of microscopic swimmers that navigate density gradients differently, with pullers moving parallel to the gradient and pushers swimming perpendicular.
A study by ISGlobal analyzed 919 European cities, identifying four urban configurations: compact-high density, open lowrise-medium density, open lowrise-low density, and green-low density. Compact high-density cities have lower carbon footprints but higher mortality rates due to poorer air quality and less green space.
An international team has revealed that sub-Neptunes exist in two distinct populations: dense and less dense. The research suggests a physical link between resonance and density, with planets in resonant systems being less dense due to formation processes involving collisions and fusion.
Researchers develop high-performance copper/graphene composite conductor for high power density motors. The composite wire exhibits extremely high strength and electrical conductivity at both room and elevated temperatures.
A new brain imaging study led by Weill Cornell Medicine researchers found that estrogen receptors in the brain increase with age during menopause, affecting cognitive and mood symptoms. The study pioneers PET imaging as a tool to track estrogen activity in the brain, revealing potential predictors of common menopause-related issues.
Researchers developed a novel air-handleable garnet-type solid electrolyte technology that improves surface and internal properties, preventing contamination layer formation. This innovation enables the creation of ultra-thin lithium solid-state batteries with high energy density and low weight.
A satellite galaxy of the Milky Way, Crater 2, has been studied by a UC Riverside-led team. They offer an explanation for its unusual properties using the self-interacting dark matter (SIDM) theory.
Scientists have discovered a new planet called WASP-193b that is 50% bigger than Jupiter yet has a density comparable to cotton candy. The planet's low density makes it an outlier among the over 5,400 planets discovered so far.
The newly discovered WASP-193b is the second least dense planet found to date, with a density comparable to that of cotton candy. Its low density cannot be explained by standard models of irradiated gas giants.
Researchers used thermodynamics to describe the expansion of the Universe, finding that adiabatic and anisotropic effects are accompanied by cooling due to the barocaloric effect. The study proposes a novel way to investigate anisotropic effects associated with the expansion of the Universe.
A massive ancient galaxy, JWST-ER1g, has been found to have a high dark matter density, puzzling physicists. Researchers offer an explanation that suggests a mechanism compressing the dark matter halo could be responsible for the high density.
Researchers at PNNL have developed a safe, economical, and water-based flow battery made with commercially available industrial quantities of nitrogenous triphosphonate. The new design exhibits remarkable cycling stability over 1,000 charging cycles, outperforming previous iron-based batteries.
Scientists have developed a nanoporous magnesium borohydride structure that stores five hydrogen molecules in three-dimensional arrangement, achieving unprecedented high-density hydrogen storage. The material exhibits a capacity of 144 g/L per volume of pores, surpassing traditional methods and offering a promising alternative to large...
A new study found that living close to pubs, bars, and fast-food restaurants is associated with a higher risk of heart failure. The study, which analyzed data from over 500,000 adults in the UK, also found that proximity and density of ready-to-eat food outlets were linked to an elevated risk of heart failure.
A new universal figure-of-merit for thermophotovoltaic (TPV) devices has been introduced to assess performance and balance power density and efficiency. This metric enables the classification of previously reported experimental results, providing a clear picture of TPV device overall performance.
The review discusses the optical aspects of QPAT, including mathematical models for light propagation and interaction with biological tissues. The authors outline two approaches to estimating chromophore concentrations from absorbed optical energy density data, highlighting the challenges associated with practical implementation, such ...
Researchers from Lehigh University have successfully mapped 15 orphaned stars to their birth clusters in the Milky Way using Gaia Mission data. The study provides new insights into the galaxy's history and star cluster dynamics.
A longitudinal study of Hispanic adolescents and young adults found that PFAS exposure is linked to lower bone mineral density and a higher risk of osteoporosis. The study's findings highlight the need for stricter regulation of PFAS to protect vulnerable populations.
A new theory, self-interacting dark matter (SIDM), proposes that dark matter particles interact through a dark force, explaining high-density halos and low-density halos of ultra-diffuse galaxies. SIDM simulates cosmic structure formation with strong dark matter self-interactions, diversifying halo density in central regions.
Researchers from Universities of Bonn and St. Andrews propose an alternative theory of gravity as the cause of the discrepancy in measured values of the Hubble-Lemaitre constant. This 'modified Newtonian dynamics' (MOND) theory predicts the existence of regions with lower matter density, which would explain the observed deviations.
A study published in the American Journal of Human Biology found that COVID-19 has negatively impacted bone tissue, particularly among young adults. The research indicates a significant decrease in bone mineral density during the pandemic compared to pre-pandemic measurements.
Researchers have successfully addressed and detected single rare-earth ions within an ensemble of atoms in a nanoparticle, enabling efficient light-matter interaction. This discovery brings researchers closer to creating a robust system for low-loss and fast interface between nodes of the future quantum internet.
Researchers add graphene to Bi-2223 superconductors, increasing critical current density and improving phase formation. The findings suggest potential applications in various fields, including power generation, transportation, and quantum computing.
A new strategy optimizes optical and electrical characteristics of thin c-Si solar cells, improving conversion efficiency by 28% compared to industrial thick counterparts. The proposed design uses a layer transfer method and metal nanofilms for enhanced light absorption and surface passivation.
Researchers found that certain bacteria, such as Akkermansia and Clostridiales DTU089, were associated with lower bone density and microarchitecture in older adults. The study suggests that targeting the gut microbiome could lead to better bone health and potentially reduce the risk of osteoporosis.
Researchers have developed high-resolution near-eye displays with integrated light field technology, overcoming limitations of earlier displays. The new designs feature improved resolution, pixel density, and vision correction capabilities, resulting in enhanced visual comfort and immersive VR experiences.
A new Australian study found that implementing simple bone-strengthening strategies throughout the community can lead to a substantial decrease in hip fractures. The study analyzed data from over 3000 individuals aged 60+ and showed a 45% decline in hip fractures despite only a 3% increase in bone mineral density.
A recent study by GEOMAR researchers found that fluctuations in the Labrador Sea can significantly influence the strength of sinking processes east of Greenland. This phenomenon affects the Atlantic Meridional Overturning Circulation (AMOC), a crucial climate system that brings warm water from the Gulf of Mexico to Europe.
A University of Maryland study found that tree species diversity increases spider populations, providing a natural pest regulation service. Spider populations in diverse plots increased by 23-50% compared to single-species plots during late summer months.
Researchers developed a new method for capturing turbulent flame behavior, providing detailed insights into flame dynamics, ignition processes and combustion efficiency. The high-speed 3D imaging approach can be used to optimize energy production processes and improve fire safety measures.
A recent study by Dr. Monica Mowery at Ben-Gurion University of the Negev found that urban habitats provide a safe haven for invasive brown widow spiders, protecting them from parasitism and predation. This allows the species to thrive in high densities, contrary to what is observed in natural desert habitats.
A new study at Columbia Mailman School of Public Health found that neighborhoods with high densities of unhealthy retail food establishments were associated with a higher risk of delivering babies born large-for-gestational age, while those with healthy food options reduced this risk. The study analyzed data from over 106,000 births in...
Japanese researchers develop improved ternary superconductor bulks from liquid sources, demonstrating enhanced performance and microstructural analysis shows significant reductions in secondary phase particle size. The findings have huge potential for applications in magnetic levitation, electric motors, and energy systems.
Researchers at the University of Missouri have developed a smart material prototype that can control the direction and intensity of energy waves. This breakthrough could have significant implications for various fields, including military and commercial applications.
Researchers developed a method to heal and recycle garnet electrolytes with Li dendrite penetration through heat treatment, increasing ionic conductivity and relative density. The recycled pellets showed improved densification and suppressed Li dendrite penetration, enabling higher critical current density.
At the lowest collision energy, QGP production is found to be absent, with a dramatic shift in data characteristics. Higher-order statistical analysis reveals a clear absence of QGP at low energies, providing new insights into nuclear matter phases.
Researchers have developed a new lithium-air battery that uses a solid electrolyte, boosting energy density four times above lithium-ion batteries. The battery can potentially power cars for over a thousand miles on a single charge and is also suitable for domestic airplanes and long-haul trucks.
Researchers at UCL discovered a new type of ice, medium-density amorphous ice (MDA), which has the same density as liquid water and exhibits properties similar to solid water. This finding may challenge existing models of water and raise questions about its anomalies.
A study of women ages 40 to 76 found that family history was the greatest perceived risk factor for breast cancer, with few considering breast density a risk. Comprehensive education is needed to address these misconceptions and reduce breast cancer risk.
Researchers at USC found significant differences in gray matter density between boys and girls with binge eating disorder, suggesting unique brain structures and potentially different treatments. The study underscores the need to include males in future research on eating disorders.
Researchers have developed a new model that combines nuclear physics and string theory to describe the transition to dense and hot quark matter in neutron star collisions. The model allows for the calculation of gravitational-wave signals, showing that both hot and cold quark matter can be produced.
Researchers have developed a method to map an asteroid's interior structure based on its spin changes during close encounters with Earth. This technique, called AIME, could help scientists plan more effective defense strategies for asteroids like Apophis, which poses a significant hazard if it were to make impact.
A study found that higher levels of inflammatory markers are associated with lower trabecular bone scores, indicating poorer bone health. Dietary intervention with prunes may counteract inflammation's negative effects on bone health, preserving cortical bone density and strength in postmenopausal women.
A recent study published in Construction and Building Materials has found that heat treatment can significantly improve the strength of recycled concrete, reducing its environmental impact. The researchers developed an energy-efficient means of improving recycled concrete outcomes through thermal treatment.