Articles tagged with Metals
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Astronomers at Indiana University have discovered a small blue galaxy, Leoncino, which contains the lowest level of heavy chemical elements (metals) ever observed in a gravitationally bound system. This finding is exciting as it could help contribute to a quantitative test of the Big Bang theory.
Research reviewing 434 patients with metal on metal total hip replacements found a revision rate of 16.4%, significantly higher than expected. The study suggests that manufacturing issues, particularly with the taper surface and liner thickness, may be to blame for early failure.
Researchers at NREL discovered a way to tune the Schottky barrier in 2D semiconductors using certain metals as electrodes. This adjustment reduces power losses and improves device performance by suppressing metal-induced gap states and Fermi level pinning effects.
A team of engineers and physicists at the University of Wisconsin-Madison created a compound that combines polar and metallic properties, defying scientific conventions. The new material exhibits both insulating and conducting properties, paving the way for devices with simultaneous electrical, magnetic, and optical functions.
A team of researchers at MIT found that spinning particles, even when separated by tens of times their size, will ultimately migrate toward each other due to long-range interactions. The phenomenon was observed in a liquid medium with inert particles and has potential applications in biological systems and synthetic materials.
Researchers found that applying a magnetic field to PdCoO2, a non-magnetic metal, increases its electrical conductivity and reduces resistance. The phenomenon was linked to the material's layered crystal structure and topological characteristics.
A team of chemists has developed a new method to make metal nanoframe catalysts, which could lead to improved hydrogen fuel production and reduced usage of precious materials. The breakthrough involves creating ruthenium nanocrystals with a unique crystal structure, increasing their surface area and catalytic activity.
A new type of lens for focusing terahertz radiation has been developed by Brown University researchers, performing as well or better than existing lenses. The device uses an array of stacked metal plates to focus terahertz waves, allowing for improved transmission and versatility in different wavelengths.
Researchers from Brown University have developed a technique that eliminates the need for highly specialized external light sources, enabling more versatile and compact devices. This breakthrough could lead to the creation of hand-held environmental sensors and biosensors that can perform complete blood workups from single drops.
A group of researchers created a unique 1D nano electronic system on the surface of a solid and observed its electronic state using photo-emitted electrons. This discovery will help elucidate the mystery of unique electronic properties of 1D nano metals.
Researchers developed a theory that combines vibrations in solid materials and liquid solidification, predicting sound waves formed when compression relaxes. Fast solidification creates large defects, resulting in a 'crackling' sound wave.
Dr. Paul Leu's CAREER award will support research on flexible metals for thin, efficient solar cells. His work aims to develop new hierarchical structures for adaptive transparent conductors and solar cells.
Metallic glue made from nanorods sets at room temperature and requires little pressure to seal, offering high thermal and electrical conductivity. The technology has multiple applications in the electronics industry, potentially replacing traditional solders and thermal grease.
Researchers developed a nanostructured metal coating that lets light through without hindering electrical access, outperforming flat surfaces. The coating combines enhanced optical transmission with electrical contact, enabling higher-efficiency optoelectronic devices.
Researchers at the University of Basel successfully transport electrons from a superconductor through a quantum dot into a metal with normal conductivity. The team measured discrete resonances, confirming theoretical predictions and demonstrating the phenomenon's applicability to quantum technology applications.
Researchers developed a flexible phototransistor that exceeds previous parameters, including sensitivity and response time. The innovative design enables improved performance in various products, such as digital cameras and night-vision goggles.
Researchers at Australian National University have successfully created a star-shaped molecule called [5]radialene, which was previously deemed too unstable. This breakthrough could lead to more efficient ways of producing medicinal agents, with the chemical industry worth nearly $1 trillion.
Researchers have found that repeated small stretching of nanoscale metal pieces can eliminate crystal defects in its crystalline structure, strengthening the material. This phenomenon is counterintuitive, as it is opposite to what one sees in larger metal crystals.
A new technique called cyclic healing uses repetitive stretching to eliminate pre-existing defects in metal crystals, significantly increasing their strength. The technique was developed by an international team of researchers and published in the Proceedings of the National Academy of Sciences.
Researchers discovered that valence change memory (VCM) cells use both negatively charged oxygen ions and positively charged metal ions for switching characteristics. This finding opens up new options for designing ReRAMs and could lead to improved performance, energy efficiency, and longevity.
Researchers have achieved record-high pressure to study osmium, finding that innermost electrons start interacting with each other due to extreme pressure. This phenomenon opens up new possibilities for discovering brand new states of matter.
Scientists at Purdue University have made a groundbreaking discovery by finding that metal can be deformed into folds while being cut, contrary to long-held assumptions. The team found that suppressing this folding behavior can reduce cutting force by up to 50%, leading to faster and more efficient machining with improved surface quality.
Scientists at the Max Planck Institute for Polymer Research discovered the fundamental parameters of Mott conduction, a key effect in magnetic memories and technologies. They found that traditional measurements underestimated the spin-asymmetry in electron scattering, which is responsible for magnetic sensor operation.
Researchers discovered a way to prevent dendrite formation in lithium metal batteries by adding chemicals to the electrolyte, improving safety and performance. The new approach could lead to more efficient and longer-lasting batteries with potential applications in electric vehicles and energy storage.
Defect-free palladium nanowires, a thousand times thinner than human hair, were stretched under controlled conditions to reveal the point where failures first appear. The study found that thermal uncertainty plays a significant role in the material's failure, with defects forming on the surface of the wire.
North Carolina State University researchers develop tunable liquid metal antenna controlled by voltage, allowing for dynamic changes in operating frequency and radiation pattern. This innovation enables miniaturization and adaptation to correct near-field loading problems, making it highly desirable for mobile devices.
Researchers at Lehigh University discovered that randomly oriented metal nanowires improve conductivity, contradicting expectations that highly ordered configurations would outperform them. The study found that restricting nanowire orientation slightly increases parallel conductivity but reduces perpendicular conductivity.
A study published in Nature found that galaxies are being strangled to death due to a lack of raw materials needed to form new stars. The team analyzed metal levels in over 26,000 galaxies and found that dead galaxies have higher metal content than alive ones.
New research reveals that mining pollution has led to a significant reduction in the genetic diversity of brown trout populations in southwest England. The study found that these fish have adapted to live in water with high levels of metal contaminants, but this adaptation comes at the cost of reduced genetic variation.
Research on River Deba sediment pollution reveals the impact of anthropogenic inputs and flooding events on metal distribution. The study found a clear increase in organic matter and metals between the headwater and mouth of the river, with highly polluted sediments reflecting upstream pollution.
Researchers create a single-step pathway to complex decalins, potentially leading to therapeutic agents. The study reveals unique reactivity patterns of metal-carbon bonds in complex structures.
Researchers proposed a new constitutive model to accurately describe the thermo-elasto-plasticity deformation of metal crystals at various temperatures. The model uses a simple and efficient approach, considering thermal expansion and its effects on plastic behavior.
Researchers have demonstrated autonomous locomotion in large self-powered soft liquid metal vehicles. The vehicles can divide into smaller ones while maintaining their motion and reunite seamlessly when close to each other.
The USGS has released a new map that portrays the diverse pieces of Earth's crust comprising the nation's geologic basement. The map provides a framework for examining mineral resources and other geological aspects by considering the age and origin of the basement rocks.
Cathleen Crudden, a Canadian scholar at Queen's University, has been awarded the 2015 Killam Research Fellowship. She will support her ongoing project on organically modified metal surfaces for biosensing and beyond. Her research focuses on using boron chemistry to catalyze organic synthesis and materials chemistry.
A team of researchers has found a way to strip out metallic carbon nanotubes from arrays using a simple, scalable procedure, leaving behind semiconducting nanotubes suitable for electronic devices. This breakthrough could lead to the development of smaller, faster, and cheaper electronic devices.
A Dartmouth College study has found that the placenta can be used to measure arsenic exposure in pregnant women and their fetuses. The study, which analyzed 652 placentas, showed a positive association between placental arsenic concentrations and maternal-to-infant arsenic transfer ratios.
Researchers found that periphyton, a community of algae and bacteria, helps transform mercury pollution from a Superfund site along the Androscoggin River into a more toxic form of mercury. Lower-than-expected levels of methylmercury were also detected in crayfish and small fish downstream from the site.
Researchers at the University of Rochester have developed a method to create extremely water-repellent metals using lasers, which can lead to efficient solar absorbers and self-cleaning surfaces. The technique creates multifunctional surfaces with both super-hydrophobic and highly-absorbent optical properties.
Scientists have successfully tracked the motion of electrons in metals using laser pulses, achieving attosecond precision. The results demonstrate that electrons travel through metals ballistically, with their arrival times dependent on layer thickness. This breakthrough has significant implications for the miniaturization of electroni...
Researchers at the University of Guelph have developed a simple procedure to transport wet farm waste and produce energy from it. Pressure cooking yields compact, easily transportable material that can be used in energy-producing plants, producing similar amounts of energy as coal.
A new technique allows ultrasound to penetrate bone and metal, enabling medical professionals to monitor blood flow in the brain or treat brain tumors more effectively. The metamaterial structure offsets distortion caused by these 'aberrating layers,' increasing wave energy transmission by up to 88%.
Scientists at the University of Wisconsin-Madison developed a new process to convert lignin, a biomass waste product, into simple chemicals. The innovation could replace petroleum-based fuels and chemicals with biorenewable materials.
Researchers at Oak Ridge National Laboratory have demonstrated a novel additive manufacturing method that controls the microstructure of metal components with unprecedented precision. This innovation holds significant potential for engineering, design, and energy-efficient transportation applications.
A growing body of evidence links metal fumes to a heightened risk of bacterial lobar pneumonia in welders. New data shows welders are more than 3.5 times as likely to die from pneumococcal pneumonia compared to other workers.
The researchers created a two-dimensional metallic dielectric photonic crystal that absorbs virtually all wavelengths of light from the sun, but not much of the rest. The material can withstand extremely high temperatures and is made at large scales with cheaply manufactured technology.
A study by Solange Cadore and colleagues found that dark chocolates in Brazil contained high levels of lead and cadmium. The researchers tested 30 commercial samples and found that the highest amounts of these metals were present in dark chocolate products, posing a health risk to children who consume them.
A new technique can quickly screen products for mercury content, helping to identify those at risk of serious health problems. The method uses total reflection x-ray fluorescence and has been shown to be just as accurate as existing techniques.
Researchers at Stanford University have developed a protective layer of interconnected carbon nanospheres to protect the unstable lithium from drawbacks, enabling the design of a pure lithium anode. The breakthrough could lead to more efficient and longer-lasting rechargeable batteries with improved capacity and reduced safety risks.
Researchers at NIST have clocked nanorods spinning up to 150,000 revolutions per minute, 10 times faster than any other nanoscale object in liquid. This discovery has opened up potential uses for nanomotors in medical treatments and industrial processes.
Researchers at the University of Oregon have created a novel, low-energy process to produce precursor materials for dense, defect-free thin films. This breakthrough could lead to more efficient electronics and solar devices with reduced manufacturing costs.
Scientists have discovered new fragmentation pathways that occur universally when DNA strands are exposed to metal ions, leading to the creation of charged intermediates. This finding could contribute to optimizing cancerous tumour therapy by improving understanding of how radiation interacts with complex DNA structures.
Researchers discovered how beryllium changes the shape of immune system proteins, triggering an inflammatory response in the lungs. The findings describe a new form of immune response that combines elements of allergic hypersensitivity and autoimmunity, with potential for new therapeutic strategies.
Researchers at IBS developed polymer nanocapsules with metal nanoparticles, offering high stability, dispersibility and catalytic activity in water. This technology replaces toxic liquid solvents with environmentally preferable ones, enabling sustainable catalysis.
Researchers have developed a new model that explains the interface losses between organic semiconductors and metals, enabling the introduction of an insulating layer to improve electrical contact. The model suggests varying energy barriers can lead to lower losses and more efficient organic electronic devices.
Researchers from LLNL and MIT have created ultra-lightweight and stiff mechanical metamaterials using additive micro-manufacturing processes. The new materials exhibit properties not found in nature, maintaining a nearly constant stiffness per unit mass density across more than three orders of magnitude in density.
Researchers from the University of Jyväskylä report a new method for building molecular cages that exploits intermolecular steric effects to control self-assembly. This allows for the creation of cages with vacant metal binding sites, enabling modifications to their properties.
Researchers at the University of Miami discovered a metal named lithium purple-bronze (LiPB) with extraordinary thermoelectric properties, which may revolutionize power generation and refrigeration. The material produces a large voltage for a given temperature difference, making it suitable for converting waste heat into electric power.
Researchers at Drexel University have developed a way to classify and predict the existence of rare polar metals, which are electrically conductive and have an asymmetric distribution of electrons. This discovery could lead to new materials with unique properties, such as superconductivity.
A study found lower risks of heart attack, death, and procedures to re-open the artery in patients receiving drug-eluting stents followed by individualized blood-thinning medication. The results challenge existing guidelines for prolonged anti-platelet therapy after stent placement.