Articles tagged with Nitrogen
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.
Researchers have found that blocking the protein StCDF1 in potatoes can improve plant performance in low-nitrogen environments. This could be a promising strategy for reducing potato needs of nitrogen fertilizers.
Increased nitrogen deposition from human activity is reducing diversity and evolutionary distinctiveness of nitrogen-fixing plants. The loss of these plants threatens both biodiversity and ecosystem stability, according to a study published in Science Advances.
A new Fe-N-C catalyst using dual nitrogen sources enhances the distribution density of active catalytic sites, increasing its overall activity and stability in oxygen reduction reaction (ORR). The catalyst demonstrates superior performance compared to commercial Pt/C catalysts, with improved durability and resistance to methanol.
Recent research highlights microwave-induced synthesis as a transformative potential in drug discovery and development. This efficient technique enables rapid preparation of diverse N-heterocycles, including biologically active molecules such as pyrimidines, thiazoles, and quinolines.
A new study published in Nature Ecology & Evolution found that warmer temperatures and nitrogen fertilization can stabilize soil carbon levels, contradicting earlier predictions. Plant roots and growth add new carbon to the soil, counteracting the loss of carbon due to climate change.
A University of Illinois study found that climate conditions can mitigate the effects of grazing on water quality, suggesting a more flexible approach to stocking rates and grazing continuity. The research developed a modeling framework to simulate nitrogen transport from livestock grazing under different climate conditions.
Researchers found that nitrogen applications had a limited impact on soybean yields, with no consistent benefit from single applications. However, a single application at planting showed increased yields in certain conditions, particularly in soils with low organic matter.
Researchers found that stored human urine had little impact on soil bacterial communities, increasing nitrifying and denitrifying groups compared to synthetic fertilizers. The study suggests that recycled urine could enhance agricultural sustainability, reduce wastewater pollution, and decrease reliance on synthetic fertilizers.
A new study reveals that soil pH sets the stage for microbial interactions and community composition, with bacteria cooperating to survive in acidic environments. The research sheds light on global nitrogen cycling and provides insights into reducing potent greenhouse gas emissions.
A recent study from the University of Illinois provides new insights into the sources and processes affecting nitrogen load in tile drainage water. The research team found a large legacy pool of nitrate in the soil, resulting in a time lag between when nitrogen is added to the system and when it is exported as nitrate in tile drainage.
Research by FAU Harbor Branch reveals that managing both phosphorus and nitrogen is crucial for tackling toxic cyanobacterial blooms in Lake Okeechobee. Human waste is identified as a major source of nutrients, with elevated nitrogen levels found in urbanized estuaries and the Kissimmee River.
Johannes Wahl receives EUR 1.5 million ERC Starting Grant to streamline synthesis of nitrogen-containing compounds, accelerating identification of promising drug candidates and tailoring their properties. Late-stage nitrogen insertion enables better adjustment of physical and chemical properties.
The study found that droughts led to increased phosphorus levels, threatening downstream ecosystems. Nitrogen levels also changed, with varying impacts depending on drought severity and timing. The research provides a detailed understanding of the Apalachicola River's nutrient dynamics.
Researchers at the University of Pittsburgh mapped nitrogen losses county by county, finding high spatial disconnects between where beef is eaten and where nitrogen impacts are felt. This disconnect results in people living far from the area where their beef was produced experiencing negative environmental effects.
Researchers found a significant association between air pollutant exposure and emergency room visits for mental disorders in communities that were once denied mortgages due to race. Elevated levels of fine particulate matter and nitrogen dioxide in these neighborhoods increased ER visits by 1.04% and 0.44%, respectively.
Researchers discovered that sponges in the Gulf of Eilat employ a unique tactic to deter predators by storing high concentrations of toxic molybdenum. The symbiotic relationship between the sponge and a bacterium enables this process, allowing the sponge to accumulate metals and neutralize their toxicity.
A new study found that nitrogen interventions can significantly lower air pollution and ecosystems damage, preventing premature deaths and crop losses. By 2050, high-ambition measures could cut ammonia and nitrogen oxides emissions by 40% and 52%, respectively.
Researchers discovered that the iron nitrogenase can convert CO2 into methane and formic acid, making it a promising starting point for developing novel CO2 reductases. The enzyme's low selectivity for CO2 also suggests its potential for widespread use in nature.
A new study published by US Forest Service researchers explores the impact of leaf-eating insects on forest ecosystems worldwide. The findings suggest that warmer climates affect plant-herbivore interactions, leading to changes in carbon and nutrient cycling in broadleaved forests globally.
Researchers at Nagoya University have developed an ammonia-free technique for producing GaN semiconductors, enabling high-quality growth at lower temperatures and reduced raw material consumption. This method also reduces the need for detoxifying systems and energy expenditure.
Researchers found that nitrogen emissions from human activities cool the climate by minus 0.34 watts per square metre, but also cause harm to health, biodiversity, and the ozone layer. The study warns against increasing atmospheric nitrogen as a means of combating global warming.
Researchers at the University of Cambridge have discovered that the plant hormone gibberellin is essential for legume nitrogen-fixing root nodule formation and maturation. The study used a highly sensitive next-generation biosensor to visualize GA accumulation in specific zones of the root, revealing its critical role in nodulation.
Researchers found that different nitrogen forms impact leaf anatomy, affecting photosynthesis efficiency. NH4+ nutrition leads to lower photosynthesis due to thicker cell walls and fewer chloroplasts. Optimizing nitrogen form applications can enhance photosynthesis and plant growth, particularly in crops like Lonicera japonica.
Research shows that oil and natural gas development in the Permian Basin contributes to high eight-hour ozone concentrations frequently exceeding EPA health standards during summer months. The study uses data from a 2019 field survey to confirm the impact of drilling, flaring, and other activities on ozone levels.
Researchers discovered that nodulation evolved in a two-step process, with the basic genetic toolkit developed first and then refined through multiple genetic mutations. This complex circuit breaker-like mechanism suggests that nodulation is not controlled by a single switch.
A new study reveals a direct connection between childhood air pollution exposure and adult bronchitis symptoms, suggesting that subtle effects on the respiratory system can persist into adulthood. The research, based on the USC Children's Health Study, found that even when adjusting for asthma or bronchitis symptoms in childhood, expos...
A new study by RIKEN CSRS shows that biomass from purple photosynthetic marine bacterium Rhodovulum sulfidophilum is an excellent nitrogen fertilizer, effective as inorganic synthetic fertilizers but with lower environmental side effects. The biomass boosts plant growth without altering soil pH or salinity.
A decade-long study has discovered a vast untapped genetic potential in modern wheat varieties, revealing that at least 60% of the genetic diversity found in a historic collection is unused. This discovery provides an unprecedented opportunity to improve modern wheat and sustainably feed a growing global population. The study used a cr...
Researchers found that adding nitrogen to concrete could significantly reduce global levels of potentially harmful nitrogen oxides (NOx) created by the construction industry. This process could contribute to a reduction in NOx emissions by 3.4-6.9 megatonnes, representing 6-13% of industry-related emissions in 2021.
Human-caused nitrous oxide emissions accelerated globally, reaching a record high in 2022, with the agricultural sector accounting for 74% of emissions. The use of chemical fertilizers and animal manure is particularly significant contributors to this growth.
Researchers at Salk Institute found that higher temperatures drain plants of important dietary nutrients like nitrogen and phosphorus, affecting their long-term sustainability. The study's findings will inform the engineering of climate-resilient crops to address global warming's impact on food production.
Scientists from the Department of Energy's Lawrence Berkeley National Laboratory have discovered a new way to produce ammonia, an essential fertilizer and component of cleaning products, using rare-earth metals as catalysts. The process operates at ambient conditions, reducing energy consumption and promoting food security.
A new study in Nature Communications reveals that symbiotic bacteria play a critical role in modulating the profile of root secreted molecules, influencing the assembly of a symbiotic root microbiome. The findings provide valuable insights into the complex interplay between nitrogen nutrition and plant-bacteria interactions.
A UTA chemist has developed a new method to separate and recycle mixed plastics using supercritical fluid chromatography. The technique can differentiate oils created from various plastics, holding promise for improving recycling rates and reducing reliance on fossil fuels.
A systematic investigation by Osaka Metropolitan University calculated 120 combinations of alloy elements with carbon and nitrogen to form bonds in steel. The results showed that specific arrangements of elements harden the iron, improving durability and material strength.
Shifting excess nitrogen from rich countries to poor ones could increase crop production by 12%, with moderate/food insecure regions seeing significant gains in both fertilizer use and food output. Current levels of production could be maintained with only 53-68% of current nitrogen used through redistribution.
New research demonstrates that incorporating widgeongrass into seagrass restoration efforts can increase the portfolio of species diversity and enhance long-term success. The study found that seeding widgeongrass in the fall with minimal pre-treatment resulted in highest survival and growth rates.
An interdisciplinary team led by Kaiyu Guan is using a combination of satellite remote sensing, in-situ measurements, and biochemical modeling to quantify nitrogen emissions from agriculture. The goal is to provide improved guidance for farmers on reducing nitrogen fertilizer use and alleviating air pollution.
A study published in Environment International found that exposure to nitrogen dioxide (NO2) during the first two years of life is associated with poorer attentional function in children aged 4-8, particularly in boys. The association persists even after adjusting for other factors.
A Japanese research team analyzed oxygen and nitrogen stable isotope ratios in nitrate to differentiate between sake breweries. The study found a distinct N isotope signature across various types of sake within a single brewery, which could be used as a marker for authentication.
Researchers have discovered a greener way to produce ammonia, essential for fertilizers, by developing a new catalyst that works stably at relatively low temperatures. This breakthrough reduces the amount of energy needed to synthesize ammonia, making it an attractive alternative to fossil fuels.
A study found significant decreases in average nitrogen dioxide concentrations and social inequities in California's air pollution during the COVID-19 pandemic lockdown. Non-urban areas saw a 17% decrease, while urban areas experienced a 50% reduction, primarily due to reduced traffic.
Researchers at Tohoku University's AIMR have developed a novel approach to electrocatalytic ammonia synthesis, utilizing transition metal disulfides as catalysts. The breakthrough relies on the in-situ generation of S-vacancies on the catalyst surface, significantly enhancing nitrogen reduction activity.
Researchers at a FAPESP-supported research center have developed an electrochemical nitrogen reduction process using iron oxide and molybdenum disulfide catalysts. This method eliminates the need for high temperatures and pressures, reducing power consumption and greenhouse gas emissions.
A study reveals that nitrogen plays a crucial role in phytoplankton growth in shallow lakes worldwide, contradicting traditional limnological consensus. The research team analyzed data from 159 lakes and found that 60% exhibit dual-nutrient limitation, where both phosphorus and nitrogen affect phytoplankton growth.
Scientists have created a novel instrument that enables the precise measurement of superconductors under extreme pressure, overcoming existing limitations. The new tool uses quantum sensors integrated into a standard pressure-inducing device, allowing for direct imaging of the material's behavior.
A team of scientists has developed a new treatment for chronic wounds that uses ionized gas plasma to decontaminate and heal wounds. The technology shows promise in treating diabetic foot ulcers, internal wounds, and potentially cancerous tumours.
New research shows that native wildflowers, which typically thrive after wildfires, are losing out to invasive plants due to nitrogen pollution from vehicle emissions. Invasive species outcompete native ones, leading to declining plant diversity and ecosystem imbalance.
Legume plants have a unique ability to interact with nitrogen-fixing bacteria, allowing them to thrive without external nitrogen. Researchers identified four essential phosphorylation sites on the SYMRK kinase that mediate this symbiotic relationship.
Researchers at Rice University have mapped the diffusion of graphene and hexagonal boron nitride in an aqueous solution, a crucial step towards larger-scale production of these 2D materials. The study found that the size of the material affects its movement speed, with hexagonal boron nitride moving faster than graphene.
Novel research by University of Oklahoma-led team improves understanding of ammonia oxidation, a critical component of the global nitrogen cycle. Different AOM lineages employ varying regulatory strategies to minimize competition, allowing coexistence in the same environment.
New research reveals how human activities affect the marine phosphorus cycle in coastal seas, leading to changes in coastal biodiversity and ecosystem services. The study identifies an 'Anthropogenic Nitrogen Pump' that reduces phosphate levels, limiting algae growth, and enhances the utilization of dissolved organic phosphorus.
Scientists discovered how methanogenic archaea regulate nitrogen uptake using a molecular switch that adjusts enzyme activity based on 2-oxoglutarate levels. This regulation prevents energy waste when cells have enough nitrogen.
By reducing chlorophyll levels in leaves, researchers found a 17% increase in seed nitrogen concentration without impacting canopy carbon assimilation. The study's results provide an alternative approach to improve crop yield and nutritional quality for global food security.
A new study published in PNAS found that a climate policy aimed at reducing carbon emissions would also lower nitrate levels in the Mississippi River Basin, benefiting the Gulf of Mexico. The policy could lead to a 3-4% reduction in the Gulf's dead zone.
Researchers studied polymeric nitrogen's properties, including cubic gauche, layered, and hexagonal forms, using advanced spectroscopy techniques. The study highlights the need for further research on synthesis methods, diagnostic methods, and high-pressure electronic band structure.
Researchers at University at Buffalo have discovered a way to create strong and effective fuel cell catalysts that approach the performance of platinum. By adding hydrogen to the fabricating process, they were able to balance durability and efficiency, potentially making fuel cells more affordable and polluting-free.
A study of Ryugu samples suggests that micrometeorites from icy celestial bodies in the outer Solar System transported nitrogen compounds to near-Earth regions. This discovery could provide clues about the origins of nitrogen on our planet, potentially serving as a building block for life.
Researchers have found that struvite, a recycled phosphorus fertilizer, can reduce nutrient leaching and maintain soybean yields compared to conventional fertilizers. The study showed that struvite can be a full substitute for traditional fertilizers in terms of yield benefits.
A new study reveals that cycad species that survived the dinosaur extinction relied on symbiotic bacteria in their roots for nitrogen. This discovery sheds light on how these plants adapted to changing environments and could provide insights into understanding Earth's climate history.