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Structures of substrate- and product-bound forms of a multi-domain copper nitrite reductase shed light on the role of domain tethering in protein complexes

Copper-containing nitrite reductases (CuNiRs) are found in all three kingdoms of life and play a major role in the denitrification branch of the global nitro­gen cycle where nitrate is used in place of di­oxy­gen as an electron acceptor in respiratory energy metabolism. Several C- and N-terminal redox domain tethered CuNiRs have been identified and structurally characterized during the last decade. Our understanding of the role of tethered domains in these new classes of three-domain CuNiRs, where an extra cytochrome or cupredoxin domain is tethered to the catalytic two-domain CuNiRs, has remained limited. This is further compounded by a complete lack of substrate-bound structures for these tethered CuNiRs. There is still no substrate-bound structure for any of the as-isolated wild-type tethered enzymes. Here, structures of nitrite and product-bound states from a nitrite-soaked crystal of the N-terminal cupredoxin-tethered enzyme from the Hyphomicrobium denitrificans strain 1NES1 (Hd1NES1NiR) are provided. These, together with the as-isolated structure of the same species, provide clear evidence for the role of the N-terminal peptide bearing the conserved His27 in water-mediated anchoring of the substrate at the catalytic T2Cu site. Our data indicate a more complex role of tethering than the intuitive advantage for a partner-protein electron-transfer complex by narrowing the conformational search in such a combined system.




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Solid/liquid-interface-dependent synthesis and immobilization of copper-based particles nucleated by X-ray-radiolysis-induced photochemical reaction




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catena-Poly[[[aquacopper(II)]-μ-(biphenyl-2,2'-dicarboxylato)-μ-[N,N'-bis(pyridin-4-yl)urea]] 1.25-hydrate]

In the title compound, {[Cu(C14H8O4)(C11H10N4O)(H2O)]·1.25H2O}n, the CuII cations are coordinated in a square-pyramidal fashion by trans carboxylate O-atom donors from two diphenate (dip) ligands, trans pyridyl N-atom donors from two bis(4-pyridyl)urea (bpu) ligands, and a ligated water molecule in the apical position. [Cu(H2O)(dip)(bpu)]n coordination polymer layer motifs are oriented parallel to (overline{1}02). These layer motifs display a standard (4,4) rectangular grid topology and stack in an AAA pattern along the a-axis direction to form the full three-dimensional crystal structure of the title compound, mediated by N—H...O and O—H...O hydrogen bonding patterns involving the water molecules of crystallization.




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Structure of the archaeal chemotaxis protein CheY in a domain-swapped dimeric conformation

Archaea are motile by the rotation of the archaellum. The archaellum switches between clockwise and counterclockwise rotation, and movement along a chemical gradient is possible by modulation of the switching frequency. This modulation involves the response regulator CheY and the archaellum adaptor protein CheF. In this study, two new crystal forms and protein structures of CheY are reported. In both crystal forms, CheY is arranged in a domain-swapped conformation. CheF, the protein bridging the chemotaxis signal transduction system and the motility apparatus, was recombinantly expressed, purified and subjected to X-ray data collection.




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Mississippi State borrows grasshopper collection from Smithsonian

JoVonn Hill, a research associate with the Mississippi Agricultural and Forestry Experiment Station at Mississippi State University, recently borrowed 32,000 grasshoppers from the Smithsonian’s National […]

The post Mississippi State borrows grasshopper collection from Smithsonian appeared first on Smithsonian Insider.




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Discovery: Turtle shells appeared 40 million years earlier than previously believed

Unique among Earth’s creatures, turtles are the only animals to form a shell on the outside of their bodies through a fusion of modified ribs, […]

The post Discovery: Turtle shells appeared 40 million years earlier than previously believed appeared first on Smithsonian Insider.




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American Indians, colonists had healthy appetite for crabs, study shows

Native Americans and America’s early colonists ate many more blue crabs than modern researchers previously thought, according to a team of scientists studying crab remains […]

The post American Indians, colonists had healthy appetite for crabs, study shows appeared first on Smithsonian Insider.




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Trapped in Amber: Ancient fossils reveal remarkable stability of Caribbean lizard communities

Tiny Anolis lizards preserved since the Miocene in amber are giving scientists a true appreciation of the meaning of community stability. Dating back some 15 […]

The post Trapped in Amber: Ancient fossils reveal remarkable stability of Caribbean lizard communities appeared first on Smithsonian Insider.




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What happens at the National Zoo when it snows?

Snowstorms and blizzards send people to raid supermarkets and prepare their homes for days of staying indoors, but how do the animals at the Smithsonian’s […]

The post What happens at the National Zoo when it snows? appeared first on Smithsonian Insider.




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Remarkable butterfly look-alike lived 50 million years before butterflies appeared

New fossils found in Northeastern China have revealed a remarkable evolutionary coincidence: an extinct group of insects known as Kalligrammatid lacewings (Order Neuroptera) share an […]

The post Remarkable butterfly look-alike lived 50 million years before butterflies appeared appeared first on Smithsonian Insider.




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Farthest Milky Way stars might be ripped from another galaxy

The 11 farthest known stars in our galaxy are located about 300,000 light-years from Earth, well outside the Milky Way’s spiral disk. New research by […]

The post Farthest Milky Way stars might be ripped from another galaxy appeared first on Smithsonian Insider.



  • Science & Nature
  • Space
  • Center for Astrophysics | Harvard & Smithsonian
  • Milky Way
  • Smithsonian Astrophysical Observatory

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Underpaid women “computers” mapped the universe in the 19th century

Every day, astronomers at the Harvard-Smithsonian Center for Astrophysics depend on computers to help them solve the mysteries of the universe, just as they did […]

The post Underpaid women “computers” mapped the universe in the 19th century appeared first on Smithsonian Insider.



  • Science & Nature
  • Space
  • astrophysics
  • Center for Astrophysics | Harvard & Smithsonian

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If a supernova vaporized our ozone layer, what would happen to life on Earth?

If a supernova vaporized Earth’s ozone layer, what would happen to life in the ocean? Smithsonian biologist Pat Neale shows how UV rays could harm […]

The post If a supernova vaporized our ozone layer, what would happen to life on Earth? appeared first on Smithsonian Insider.





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“Extinct” birds reappear in rainforest fragments in Brazil

Bird species in rainforest fragments in Brazil that were isolated by deforestation first disappeared and then reappeared during the next quarter-century.

The post “Extinct” birds reappear in rainforest fragments in Brazil appeared first on Smithsonian Insider.




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Tiny, fierce and disappearing: breeding program aims to help the loggerhead shrike

Residents of the southeastern United States might occasionally come across an oddity along a barbed-wire fence: a series of insects, mice or even small birds […]

The post Tiny, fierce and disappearing: breeding program aims to help the loggerhead shrike appeared first on Smithsonian Insider.




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Beetle and pollen trapped in 105 million-year-old amber reveal fourth major pollination mode in mid-Mesozoic

Named for Charles Darwin, the only known specimen of a newly discovered beetle, Darwinylus marcosi, died in a sticky battle in a gob of tree […]

The post Beetle and pollen trapped in 105 million-year-old amber reveal fourth major pollination mode in mid-Mesozoic appeared first on Smithsonian Insider.





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Crystal structure and characterization of a new copper(II) chloride dimer with meth­yl(pyridin-2-yl­methyl­idene)amine

The new copper(II) complex [CuLCl2]2, where L is a product of Schiff base condensation between methyl­amine and 2-pyridine­carbaldehyde, is built of discrete centrosymmetric dimers.




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Co-crystal structure, Hirshfeld surface analysis and DFT studies of 3,4-ethyl­ene­dioxy­thio­phene solvated bis­[1,3-bis­(penta­fluoro­phen­yl)propane-1,3-dionato]copper(II)

The title complex, Cu(L)2 or [Cu(C15HF10O2)2], comprising one copper ion and two fully fluorinated ligands (L−), was crystallized with 3,4-ethyl­ene­dioxy­thio­phene (EDOT, C6H6O2S) as a guest mol­ecule to give in a di­chloro­methane solution a unique co-crystal, Cu(L)2·3C6H6O2S.




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Model-independent extraction of the shapes and Fourier transforms from patterns of partially overlapped peaks with extended tails

This work presents a technique for extracting the detailed shape of peaks with extended, overlapping tails in an X-ray powder diffraction pattern. The application discussed here concerns crystallite size broadening, though the technique can be applied to spectra of any origin and without regard to how the profiles are to be subsequently analyzed. Historically, the extraction of profile shapes has been difficult due to the complexity of determining the background under the peak, resulting in an offset of the low-frequency components of the Fourier transform of the peak known as the `hook' problem. The use of a carefully considered statistical weighting function in a non-linear least-squares fit, followed by summing the residuals from such a fit with the fit itself, allows one to extract the full shape of an isolated peak, without contributions from either the background or adjacent peaks. The extracted shape, consisting of the fit function recombined with the residuals, is not dependent on any specific shape model. The application of this to analysis of microstructure is performed independently of global parametric models, which would reduce the number of refined parameters; therefore the technique requires high-quality data to produce results of interest. The effectiveness of the technique is demonstrated by extraction of Fourier transforms of peaks from two sets of size-broadened materials with two differing pieces of equipment.




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Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine

The new copper(II) complex, namely, di-μ-chlorido-bis{chlorido[methyl(pyridin-2-ylmethylidene)amine-κ2N,N']copper(II)}, [Cu2Cl4(C7H8N2)2], (I), with the ligand 2-pyridylmethyl-N-methylimine (L, a product of Schiff base condensation between methylamine and 2-pyridinecarbaldehyde) is built of discrete centrosymmetric dimers. The coordination about the CuII ion can be described as distorted square pyramidal. The base of the pyramid consists of two nitrogen atoms from the bidentate chelate L [Cu—N = 2.0241 (9), 2.0374 (8) Å] and two chlorine atoms [Cu—Cl = 2.2500 (3), 2.2835 (3) Å]. The apical position is occupied by another Cl atom with the apical bond being significantly elongated at 2.6112 (3) Å. The trans angles of the base are 155.16 (3) and 173.79 (2)°. The Cu...Cu separation in the dimer is 3.4346 (3) Å. In the crystal structure, the loosely packed dimers are arranged in stacks propagating along the a axis. The X-band polycrystalline 77 K EPR spectrum of (I) demonstrates a typical axial pattern characteristic of mononuclear CuII complexes. Compound (I) is redox active and shows a cyclic voltammetric response with E1/2 = −0.037 V versus silver–silver chloride electrode (SSCE) assignable to the reduction peak of CuII/CuI in methanol as solvent.




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Recovery, what happens




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Allowable Levels of Copper in Drinking Water Should Not Be Increased Until Studies Are Done

The federal government should not increase the maximum level of copper allowed in drinking water, because higher levels could lead to liver poisoning in infants and children with certain genetic disorders.




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Fruits and Vegetables Yield Less Vitamin A Than Previously Thought - Upper Limit Set for Daily Intake of Vitamin A and Nine Other Nutrients

Darkly colored, carotene-rich fruits and vegetables -- such as carrots, sweet potatoes, and broccoli -- provide the body with half as much vitamin A as previously thought.




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Rates of Physical and Sexual Child Abuse Appear to Have Declined Over the Last 20 Years - Rates of Child Neglect Show No Decline, Constitute 75 Percent of Reported Cases, Says New IOM Report

Rates of physical and sexual abuse of children have declined over the last 20 years, but for reasons not fully understood, says a new report from the Institute of Medicine. Yet, reports of psychological and emotional child abuse have risen in the same period, and data vary significantly as to whether child neglect is increasing, decreasing, or remaining constant.




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Fauci To Appear Before Senate Panel, But Not 'Trump Haters' In The House, Trump Says

Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, and CDC Director Robert Redfield will appear before a Senate committee on May 12.; Credit: Patrick Semansky/AP

Kelsey Snell | NPR

Dr. Anthony Fauci, the director of the National Institute of Allergy and Infectious Diseases, will join Centers for Disease Control and Prevention Director Robert Redfield and other administration representatives in testifying before a Senate committee on May 12.

The announcement comes as members of President Trump's coronavirus task force are being asked to limit their appearances on Capitol Hill despite ongoing calls from lawmakers for more oversight into the administration's coronavirus response. Last week, the Trump administration blocked Fauci from appearing before a House committee on the subject of spending on coronavirus testing.

President Trump told reporters Tuesday that he doesn't want the officials appearing before House Democrats.

"The House is a setup," Trump said. "The House is a bunch of Trump haters."

White House officials gave a less adversarial explanation when justifying the decision to limit task force testimony in a memo to top congressional aides.

"For primary response departments, including HHS, DHS, and State, in order to preserve department-wide resources, no more than one COVID-related hearing should be agreed to with the department's primary House and Senate authorizing committee and appropriations subcommittee in the month of May, for a total of no more than four COVID-related hearings department-wide," the memo stated.

Congressional Democrats are demanding greater oversight over the roughly $3 trillion that has already been approved for the coronavirus response. House Speaker Nancy Pelosi, D-Calif., has launched a new select committee to conduct the oversight, but Republicans have so far refused to name members to the panel despite the plan to make the panel bipartisan.

The Senate hearing was announced shortly after the administration sent the memo to Capitol Hill banning committee appearances from task force members during May unless approved by the White House chief of staff.

Deputy White House Press Secretary Judd Deere said the decision to block Fauci from the House committee appearance was intended to allow him to focus on his primary task of overseeing the coronavirus response.

"While the Trump Administration continues its whole-of-government response to COVID-19, including safely opening up America again and expediting vaccine development, it is counter-productive to have the very individuals involved in those efforts appearing at Congressional hearings," Deere said. "We are committed to working with Congress to offer testimony at the appropriate time."

Fauci, Redfield, HHS Assistant Secretary Brett Giroir and FDA Commissioner Stephen Hahn are scheduled to discuss "safely getting back to work and back to school" when they appear before the Health, Education, Labor and Pensions — or HELP — Committee next Tuesday.

Senate Democrats, including Patty Murray, D-Wash., the top Democrat on the HELP committee, have called for the administration to provide greater transparency and a nationwide plan for testing. So far their demands have not received a response.

Copyright 2020 NPR. To see more, visit https://www.npr.org.

This content is from Southern California Public Radio. View the original story at SCPR.org.




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Kids' Climate Case 'Reluctantly' Dismissed By Appeals Court

Levi Draheim, 11, wears a dust mask as he participates in a demonstration in Miami in July 2019. A lawsuit file by him and other young people urging action against climate change was thrown out by a federal appeals court Friday.; Credit: Wilfredo Lee/AP

Nathan Rott | NPR

A federal appeals court has dismissed a lawsuit brought by nearly two dozen young people aimed at forcing the federal government to take bolder action on climate change, saying the courts were not the appropriate place to address the issue.

A three-judge panel of the 9th U.S. Circuit Court of Appeals said Friday the young plaintiffs had "made a compelling case that action is needed," but they did not have legal standing to bring the case.

The lawsuit, Juliana v. United States, was filed in 2015 on behalf of a group of children and teenagers who said the U.S. government continued to use and promote the use of fossil fuels, knowing that such consumption would destabilize the climate, putting future generations at risk.

By doing so, the plaintiffs argued, the U.S. government had violated their constitutional rights to life, liberty and property.

Judge Andrew D. Hurwitz agreed with some of that assertion, writing in a 32-page opinion that "the federal government has long promoted fossil fuel use despite knowing that it can cause catastrophic climate change."

But, he continued, it was unclear if the court could compel the federal government to phase out fossil fuel emissions and draw down excess greenhouse gas emissions as the plaintiffs requested.

"Reluctantly, we conclude that such relief is beyond our constitutional power," Hurwitz wrote, "Rather, the plaintiffs' impressive case for redress must be presented to the political branches of government."

The decision reversed an earlier ruling by a district court judge that would have allowed the case to move forward.

Philip Gregory, who served as co-counsel for the plaintiffs, strongly disagreed with the 2-1 ruling, saying in an interview with NPR that they would seek an "en banc petition," which would put the issue before the full 9th Circuit for review.

Gregory, who spoke to some of the young plaintiffs following the decisions, says they were hopeful that their pending petition will be considered, "because as we all know, this Congress and this President will do nothing to ameliorate the climate crisis."

Both the Trump and Obama administrations opposed the lawsuit. All three of the judges involved in Friday's ruling were appointed under Obama.

Hurwitz and Judge Mary Murguia made up the majority but the third, Judge Josephine L. Staton, wrote a blistering dissent.

"In these proceedings, the government accepts as fact that the United States has reached a tipping point crying out for a concerted response — yet presses ahead toward calamity," she wrote. "It is as if an asteroid were barreling toward Earth and the government decided to shut down our only defenses."

Copyright 2020 NPR. To see more, visit https://www.npr.org.

This content is from Southern California Public Radio. View the original story at SCPR.org.




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Federal Appeals Court Panel Clears Path To Executions, Throwing Out Lower Court Order

David Welna | NPR

Two judges appointed by President Trump to the District of Columbia Circuit Court of Appeals prevailed Tuesday in a ruling that clears the way for the executions of four inmates.

The only dissenter in the 3-2 ruling was Judge David Tatel, an appointee of former President Bill Clinton. The judges were reviewing a lower court's injunction that had blocked the scheduled executions.

The decision was seen as a win for Trump's Justice Department, which issued new guidelines last July that would have allowed the federal government to carry out its first executions in 16 years.

The fates of the four men remain unresolved because their death sentences were sent back to the lower court for further proceedings.

In December, the U.S. Supreme Court declined the Justice Department's request to vacate the lower court's injunction that scuttled the planned executions.

At issue is the question of whether the condemned men should be put to death by the injection of only one barbiturate — pentobarbital — as called for in the Justice Department's July 2019 memo.

Many of the 28 states where the death penalty is still legal require a lethal injection cocktail containing not one but three barbiturates. Those states include Indiana, where the scheduled executions were to take place.

Pharmaceutical companies have stopped producing at least one of the three drugs used in that lethal mixture, and several botched executions have resulted from some states using untested formulas.

The 1994 Federal Death Penalty Act calls for executions to be carried out "in the manner prescribed by the law of the State in which the sentence is imposed."

Judge Gregory Katsas argues in his majority opinion that the "manner prescribed" simply refers to the method of execution rather than the protocols each state follows in carrying out each kind of execution.

"The government says that 'manner' here means 'method'," Katsas writes, "such that the FDPA regulates only the top-line choice among execution methods such as hanging, electrocution, or lethal injection. In my view, the government is correct."

Judge Neomi Rao, in a concurring opinion, argues that while the word "manner" refers not only to the method of execution, it cannot be interpreted in isolation. "It is a broad, flexible term," she says, "whose specificity depends on context."

In his dissent, Tatel says the best understanding of the 1994 statute is that it "requires federal executions to be carried out using the same procedures that states use to execute their own prisoners.

"Had Congress intended to authorize the Attorney General to adopt a uniform execution protocol," Tatel argues, "it knew exactly how to do so."

Copyright 2020 NPR. To see more, visit https://www.npr.org.

This content is from Southern California Public Radio. View the original story at SCPR.org.




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Virginia Gun Range Can Reopen — Governor Overstepped His Authority, Judge Rules

Gov. Ralph Northam, seen last month, was wrong to close gun ranges in response to the spread of the coronavirus, a state court ruled Monday.; Credit: Steve Helber/AP

Matthew S. Schwartz | NPR

A Virginia gun range can remain open, despite Gov. Ralph Northam's order closing nonessential businesses throughout the state in response to the coronavirus pandemic, a state judge ruled Monday.

In a March executive order, Northam had included indoor shooting ranges among the businesses to be temporarily shuttered to stop the spread of COVID-19. In response, the shooting range SafeSide sued, asking a court to block the order. Judge F. Patrick Yeatts granted the request, prohibiting law enforcement from blocking citizens' access to the gun range.

Northam lacks the authority to close gun ranges, Yeatts said, because of a state statute, modeled on the Second Amendment to the U.S. Constitution, giving citizens the right to bear arms. "During an emergency, the governor is given great deference, but [the statute] specifically limits his authority in relation to the right to keep and bear arms," Yeatts wrote.

"The purpose of the right is to have a population trained with firearms in order to defend the Commonwealth," Yeatts wrote. "Proper training and practice at a range ... is fundamental to the right to keep and bear arms."

"The Court understands the Governor's desire to protect the citizens of our great commonwealth," Yeatts said. "But in taking steps to stop the spread of COVID-19, he took a step beyond what is allowed."

In a statement, Attorney General Mark Herring said that his office was considering how to respond. "Governor Northam's efforts to save lives and slow the spread of COVID-19 are necessary and proving to be effective, but unfortunately, the gun lobby believes the ability to shoot a gun indoors during this pandemic is worth risking further spread of the virus and making Virginia communities and families less safe," Herring said, according to the Associated Press.

University of Virginia law professor Richard Schragger told The Virginian-Pilot that the ruling only applies to the Lynchburg gun range — but the reasoning could apply to any subsequent lawsuits brought by other gun ranges in the state.

SafeSide was joined on the lawsuit by Gun Owners of America, the Association of Virginia Gun Ranges and the Virginia Citizens Defense League. Philip Van Cleave, president of the Virginia Citizens Defense League, told the AP his group would try to get a broader ruling that applied statewide.

Copyright 2020 NPR. To see more, visit https://www.npr.org.

This content is from Southern California Public Radio. View the original story at SCPR.org.




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Junior Miner Explores New Copper-Silver System in Peru

The opportunities surrounding a potential district-scale prospect are outlined by Hannan Metals CEO Michael Hudson in conversation with Maurice Jackson of Proven and Probable.





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Shoppers in favour of carbon footprint labels on food

The majority of respondents to a UK survey would like to see labels explaining the carbon footprint of the food they buy. 72% of the supermarket shoppers questioned were in favour of carbon labels on food. The survey also found that 42% had changed their shopping habits in the last 10 years in response to environmental concerns.




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Wind erosion risk mapped in first ever pan-European assessment

Over 8% of land in Europe could be at moderate-to-high risk of wind-driven soil erosion, a new study has estimated. In the first assessment of its kind, the researchers produced maps which show wind erosion risk across 36 countries. This information could help guide actions to tackle land degradation.




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Prevalence of celiac appears steady but followers of gluten-free diet increase

More people are eating gluten-free, although the prevalence of celiac disease appears to have remained stable in recent years, according to an article published online by JAMA Internal Medicine.

read more



  • Health & Medicine

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Public not equipped to manage personal carbon emissions

Although the public are largely aware of climate change, their understanding of how they produce and manage carbon is generally not sufficient to lead to changes in behaviour and lifestyle, according to a recent study. The researchers therefore recommend policy action to increase the ‘carbon capability’ of the general public.




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Shoppers in favour of carbon footprint labels on food

The majority of respondents to a UK survey would like to see labels explaining the carbon footprint of the food they buy. 72% of the supermarket shoppers questioned were in favour of carbon labels on food. The survey also found that 42% had changed their shopping habits in the last 10 years in response to environmental concerns.




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Antibiotic contamination of soils mapped across Europe

A new study provides an approach for estimating the risk of antibiotic contamination associated with different soils and different antimicrobial products. The researchers estimated and mapped soil contamination risk across Europe and suggest that their methods could be used to inform antibiotic resistance monitoring or policies designed to reduce contamination.




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Fire risk in Mediterranean Europe mapped using satellite images

Satellite observations are valuable aids to detect and monitor fire activity. A recent study has investigated how satellite images of fire activity, together with information on vegetation cover and fire risk associated with long and short-term atmospheric conditions could be used to help authorities better manage the risk of wildfires in Mediterranean Europe.




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Traffic noise pollution mapped with new mobile phone app

A new mobile phone application which can help monitor traffic-noise exposure is presented in a recent study. The app, ‘2Loud?’, can measure indoor night-time noise exposure and, given large-scale community participation, could provide valuable data to aid urban planning, the researchers say. In an Australian pilot study, nearly half of participants who used the app found that they were exposed to potentially unhealthy levels of night-time noise.




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Demand for copper could increase by 213–341% by 2050, and account for up to 2.4% of global energy demand

Global demand for copper could increase by up to 341% by 2050, and energy use is likely to increase with it — rising to a possible 2.4% of global energy demand in 2050, according to new research. Policy actions to avoid such drastic changes could include improving copper recycling and using renewable technologies.




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Greenhouse gas emissions from household consumption mapped across the EU

An inventory of carbon footprints has been developed for 177 regions across 27 EU Member States. The map is the first to quantify greenhouse gas emissions associated with household consumption across the EU. It reveals significant regional differences based on income, household size and urban versus rural living.




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Life after Fitbit: Appealing to those who feel guilty vs. free

Personal tracking tools -- technologies that meticulously count our daily steps, map our runs, account for each purchase - fall in and out of favor in users' lives.

read more



  • Psychology & Sociology

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Public participation in nature conservation – making it happen

A new study has analysed four Scandinavian examples of public involvement in nature conservation and suggested that successful participation requires clear rules to enable public involvement and a process to resolve conflicts.




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Copper and dysprosium are critical metals in growth of the German wind energy sector

The German Renewable Energy Sources Act was introduced in 2001 to encourage an increase in renewable energy supply. Since then, supply has increased from 7% (in 2001) to 37% (in 2017. Wind energy is an important part of Germany’s renewable energy production — but deploying sufficient turbines to achieve the climate goals requires a large amount of raw materials, many of which are metals in limited supply. This study found copper and dysprosium to be the most critical of these metals, as they could face future bottlenecks and are essential elements in present and future turbine design.




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Water safety: adding phosphate reduces both lead and copper

Phosphate is added to domestic drinking water to reduce lead levels in the UK, to help meet EU Drinking Water Directive standards. New research has now found that phosphate can also reduce the amount of copper in domestic sewage by more than a third. This method could help Member States meet forthcoming “safe” levels for water discharged to the environment, under forthcoming EU Water Framework Directive (WFD) proposals.




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IIT-Madras startups develop PPEs from 3D printers and regular stationery materials

Initial batches have been supplied in Chennai, while some were in the process of being scaled up towards mass production for use in hospitals and clinics across the country.




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Irrigation threatening steppe birds in Mediterranean wetlands

Intensive irrigation of agricultural land in a Mediterranean water basin is altering the habitats of associated wetlands and changing the balance of the bird population living there, according to a recent study.