Popular Nitrogen News and Current Events

Popular Nitrogen News and Current Events, Nitrogen News Articles.
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Team discovers a significant role for nitrate in the Arctic landscape
Because of the very low nitrate levels found in arctic tundra soil, scientists had assumed that plants in this biome do not use nitrate. But a new study co-authored by four Marine Biological Laboratory (MBL) Ecosystems Center scientists challenges this notion. The study has important implications for predicting which arctic plant species will dominate as the climate warms, as well as how much carbon tundra ecosystems can store. (2018-03-23)

Paving the way for hydrogen fuel cells
The hype around hydrogen fuel cells has died down, but scientists have continued to pursue new technologies that could enable such devices to gain a firmer foothold. Now one team has developed an electrocatalyst to replace the currently dominant, but expensive, one of choice -- platinum -- that could help boost the fledgling fuel-cell industry. Their report appears in the journal ACS Nano. (2017-06-28)

NUS-led study: Beltway to divert diesel trucks in Sao Paulo improved public health
A study by researchers from the National University of Singapore and the University of Sao Paulo revealed that a beltway constructed to divert heavy-duty diesel vehicles traffic in the Brazilian city of Sao Paulo has reduced public health damage associated with exposure to diesel. The positive health outcomes of the intervention could guide the formulation of similar transport polices in other cities, where humans and diesel vehicles reside and transit in close proximity. (2018-04-27)

Small but versatile
The ammonia oxidizing archaea, or Thaumarchaeota, are amongst the most abundant marine microorganisms. Yet, we are still discovering which factors allow them to thrive in the ocean: A new publication reveals that marine Thaumarchaeota have a broader metabolism than previously thought. (2018-12-10)

Alfalfa loss? Annual ryegrass is a win
In the U.S., alfalfa is grown mainly in western and northern states. The cold winters and other factors can lead to losses for farmers and forage shortages. Researchers have identified annual forage crops that can be cultivated in fields with winter-killed or terminated alfalfa. (2018-01-03)

Protein in, ammonia out
A recent study has compiled and analyzed data from 25 previous studies. Researchers honed in on factors that influence how much ammonia dairy barns emit. (2016-06-29)

New studies add to understanding of treatments for Barrett's esophagus
The October issue of GIE: Gastrointestinal Endoscopy features several new studies evaluating various treatments for Barrett's esophagus (BE). BE is a condition in which there are unusual changes to the cells lining the esophagus. It is believed to be most commonly due to inflammation from gastroesophageal reflux disease (GERD). Sometimes these changes may be considered precancerous. Endoscopic treatments for BE focus on removing or destroying the problematic tissue. (2017-10-06)

Diamonds coupled using quantum physics
Researchers at TU Wien have succeeded in coupling the specific defects in two such diamonds with one another. This is an important prerequisite for the development of new applications, such as highly sensitive sensors and switches for quantum computers. (2017-04-10)

Submerged aquatic vegetation return is sentinel of Chesapeake Bay ecosystem recovery
A new research article published today in the Proceedings of the National Academy of Sciences analyzes the positive impact of long-term nutrient reductions on an important and valuable ecosystem in the Chesapeake Bay. Scientists indicate the resurgence of underwater grasses supports nutrient reductions from EPA's Total Maximum Daily Load (TMDL) along with conservation incentives have resulted in a healthier Chesapeake Bay. (2018-03-05)

Climate game changer
New research from University of Alberta and University of Vienna microbiologists provides unparalleled insight into the Earth's nitrogen cycle, identifying and characterizing the ammonia-oxidizing microbe, Nitrospira inopinata. (2017-08-23)

Quantifying the greenhouse gas footprint of crop cultivation
The GHG footprint is an index used to indicate the climate change impact potential exerted by crop production. However, severe problems or drawbacks in the quantification of GHG footprints still exist, which has limited the applicability of the GHG footprint in crop cultivation. A generic methodological framework is proposed to quantify the GHG footprints of crop cultivation systems free from grazing. (2017-12-06)

Molecular memory can be used to increase the memory capacity of hard disks
Researchers at the University of Jyväskylä have taken part in an international British-Finnish-Chinese collaboration where the first molecule capable of remembering the direction of a magnetic above liquid nitrogen temperatures has been prepared and characterized. The results may be used in the future to massively increase the storage capacity of hard disks without increasing their physical size. (2018-10-18)

Unexpected environmental source of methane discovered
Roughly 10 percent of nitrogen-fixing microorganisms contain the genetic code for manufacturing a back-up enzyme, called iron iron-only nitrogenase, to do their job. New research reveals that this enzyme allows these microorganisms to convert nitrogen gas to ammonia and carbon dioxide into methane at the same time. This enzymatic pathway is a previously unknown route for the natural biological production of methane. (2018-01-15)

New quantum states for better quantum memories
How can quantum information be stored as long as possible? An important step forward in the development of quantum memories has been achieved by a research team of TU Wien. (2016-11-23)

How bacteria fertilize soya
Soya and clover have their very own fertiliser factories in their roots, where bacteria manufacture ammonium, which is crucial for plant growth. Although this has long been common knowledge, scientists have only recently described the mechanism in detail. With biotechnology, this knowledge could now help make agriculture more sustainable. (2020-06-03)

Bacterial mechanism converts nitrogen to greenhouse gas
Cornell University researchers have discovered a biological mechanism that helps convert nitrogen-based fertilizer into nitrous oxide, an ozone-depleting greenhouse gas. (2016-12-06)

Bacteria are individualists
Cells respond differently to lack of nutrients. (2016-05-12)

Light green plants save nitrogen without sacrificing photosynthetic efficiency
Scientists designed plants with light green leaves with hopes of allowing more light to penetrate the crop canopy and increase overall light use efficiency and yield. This strategy was tested in a recent modeling study, led by the University of Illinois, that found leaves with reduced chlorophyll content do not actually improve canopy-level photosynthesis, but instead, conserve a significant amount of nitrogen that the plant could reinvest to improve light use efficiency and increase yield. (2017-11-20)

Yale study offers new paradigm on ecosystem ecology
Predators have considerably more influence than plants over how an ecosystem functions, according to a Yale study published today in Science. (2008-02-14)

Nitrogen is a neglected threat to biodiversity
Nitrogen pollution is a recognized threat to sensitive species and ecosystems. However, the means and severity of the damage are elusive, hampering efforts to manage this worldwide contaminant. (2016-02-24)

Research outlines the interconnected benefits of urban agriculture
A team of researchers led by Arizona State University and Google has assessed the value of urban agriculture and quantified its benefits at global scale. They report their findings in 'A Global Geospatial Ecosystems Services Estimate of Urban Agriculture,' in the current issue of Earth's Future. (2018-01-10)

Cleaner air may be driving water quality in Chesapeake Bay
A new study suggests that improvements in air quality over the Potomac watershed, including the Washington, D.C., metro area, may be responsible for recent progress on water quality in the Chesapeake Bay. Scientists from the University of Maryland Center for Environmental Science have linked improving water quality in streams and rivers of the Upper Potomac River Basin to reductions in nitrogen pollution onto the land and streams due to enforcement of the Clean Air Act. (2016-07-26)

Ribbed mussels could help improve urban water quality
Ribbed mussels can remove nitrogen and other excess nutrients from an urban estuary and could help improve water quality in other urban and coastal locations, according to a study in New York City's Bronx River. The findings, published in Environmental Science and Technology, are part of long-term efforts to improve water quality in the Bronx River Estuary. (2017-11-22)

Because of agriculture, the Gulf of Mexico will suffocate for decades longer
Nitrogen runoff has created a massive oxygen-deprived 'dead zone' in the Gulf of Mexico, but even if the runoff was completely eliminated, it would still take at least 30 years for the area to recover, a new study estimates. (2018-03-22)

Microbes can grow on nitric oxide
Nitric oxide (NO) is a central molecule of the global nitrogen cycle. A study by Boran Kartal from the Max Planck Institute for Marine Microbiology, Germany, and colleagues reveals that microorganisms can grow on NO. Their results, which are now published in Nature Communications, change our view of the earth's nitrogen cycle and how microorganisms regulate the release of greenhouse gases from natural and man-made environments. (2019-03-18)

Fixing the role of nitrogen in coral bleaching
A unique investigation highlights how excess nitrogen can trigger coral bleaching in the absence of heat stress. (2017-06-05)

Researchers discover greenhouse bypass for nitrogen
An international team discovers that production of a potent greenhouse gas can be bypassed as soil nitrogen breaks down into unreactive atmospheric N2. (2017-01-18)

New source of global nitrogen discovered
Not all of the nitrogen on the planet comes from the atmosphere, according to a UC Davis study in the journal Science. Up to a quarter comes from Earth's bedrock. The discovery could greatly improve climate change projections.  (2018-04-05)

Systems biology approach identifies nutrient regulation of biological clock in plants
Using a systems biological analysis of genome-scale data from the model plant Arabidopsis, an international team of researchers identified that the master gene controlling the biological clock is sensitive to nutrient status. The study will appear in the latest issue of the Proceedings of the National Academy of Sciences. (2008-03-14)

Cleaning up aquatic pollution with mussels
Scientists and activists alike have been looking for a solution to the problem of aquatic nutrient pollution. Now one group reports in Environmental Science & Technology that ribbed mussels are up to the clean-up challenge. (2017-11-08)

Northern lakes respond differently to nitrogen deposition
Nitrogen deposition caused by human activities can lead to an increased phytoplankton production in boreal lakes. The response of boreal lakes to nitrogen deposition will strongly depend on each lake's content of organic carbon, which are predicted to increase with future warmer and wetter climate. This according to a study at Umeå University in northern Sweden. (2017-02-06)

Heavy nitrogen molecules reveal planetary-scale tug-of-war
Researchers from Rice University, UCLA, Michigan State and the University of New Mexico have discovered a planetary-scale tug-of-war between life, deep Earth and the upper atmosphere that is expressed in atmospheric nitrogen. The research appears this week in Science Advances. (2017-11-17)

Eating your veggies, even in space
Travelling to Mars will require astronauts to grow their own food. The Norwegian University of Science and Technology (NTNU) is creating the planters for cultivating veggies in space. Now that researchers have finished lettuce-growing experiments, they'll be embarking on bean trials. (2019-01-04)

FSU researchers: Savanna fires pump Central African forests full of nitrogen
Florida State University researchers are part of a global team of scientists revealing the unexpected role that large-scale fires and high nitrogen deposition play in the ecology and biogeochemistry of these lush Central African forests. (2018-02-08)

Corn yield modeling towards sustainable agriculture
Researchers use a 16 year field-experiment dataset to show the ability of a model to fine-tune optimal nitrogen fertilizer rates, and identify five ways it can inform nitrogen management guidelines. Finding the optimal N fertilizer rate is notoriously complex and yet vital to keep profits high and environmental impact low. The work, published in the open-access journal Frontiers in Plant Science is relevant to future food security and sustainable farming methods. (2016-12-14)

Measure of age in soil nitrogen could help precision agriculture
What's good for crops is not always good for the environment. Nitrogen, a key nutrient for plants, can cause problems when it leaches into water supplies. University of Illinois engineers developed a model to calculate the age of nitrogen in corn and soybean fields, which could lead to improved fertilizer application techniques to promote crop growth while reducing leaching. (2016-07-25)

Acid rain has a disproportionate impact on coastal waters
The release of sulfur and nitrogen into the atmosphere by power plants and agricultural activities plays a minor role in making the ocean more acidic on a global scale, but the impact is greatly amplified in the shallower waters of the coastal ocean, according to new research by atmospheric and marine chemists. (2007-09-07)

SwRI scientists introduce cosmochemical model for Pluto formation
Southwest Research Institute scientists integrated NASA's New Horizons discoveries with data from ESA's Rosetta mission to develop a new theory about how Pluto may have formed at the edge of our solar system. (2018-05-25)

Study boosts hope for cheaper fuel cells
Simulations by Rice University scientists show how carbon nanomaterials may be optimized to replace expensive platinum in cathodes for electricity-generating fuel cells. (2018-01-05)

Researchers put the bite on mosquitoes
Few things sting like a mosquito's bite -- especially if that bite carries a disease such as malaria, yellow fever, Dengue fever or West Nile virus. But if a team of University of Arizona researchers has its way, one day mosquito bites may prove deadly to the mosquitoes. (2008-01-16)

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