The diffraction response of a single crystal to electric field measured by X-ray diffraction by angles close to π. Such schemes allow one to determine with high (~ 10–5–10–6) accuracy the relative changes in the lattice constant.

A Smithsonian Institution biologist, working with the Natural History Unit of the British Broadcasting Corp., has discovered a new species of giant rat on a film-making expedition to a remote rainforest in New Guinea.

The post New species of giant rat discovered in crater of volcano in Papua New Guinea appeared first on Smithsonian Insider.

Invasive species, contaminants, excessive nutrient's and sediment are just some of the many factors threatening sensitive wetlands and seagrass beds.

The post Smithsonian to lead study on degradation of nearshore coastal habitats of the Chesapeake appeared first on Smithsonian Insider.

Astronomers using NASA's Chandra X-ray Observatory have found evidence of the youngest black hole known to exist in our cosmic neighborhood. The 30-year-old object is a remnant of SN 1979C, a supernova in the galaxy M100 approximately 50 million light years from Earth.

The post Chandra X-ray Observatory finds youngest nearby black hole appeared first on Smithsonian Insider.

Our Sun can be a menace when it sends out powerful blasts of radiation towards the Earth. Astronomers keenly watch the Sun in hopes of being able to predict these eruptions. New research shows that one-third of the Sun’s blasts are “sneak attacks” that may occur without warning.

The post Sneak attacks from the Sun appeared first on Smithsonian Insider.

Faced with insufficient time and inadequate library resources to tackle the problem on their own, they instead posted a catalog of specimen images to Facebook and turned to their network of colleagues for help.

The post Facebook friends help scientists quickly identify nearly 5,000 fish specimens collected in Guyana appeared first on Smithsonian Insider.

New observations by NASA's Wide-field Infrared Survey Explorer, or WISE, show there are significantly fewer near-Earth asteroids in the mid-size range than previously thought.

The post Infrared survey reveals fewer near-Earth asteroids than previously thought appeared first on Smithsonian Insider.

Ornithologists Carla Dove and Storrs Olson used 700- to 1,100-year-old feathers from a long extinct species of Hawaiian ibis to help determine the bird’s place in the ibis family tree. The feathers are the only known plumage of any of the prehistorically extinct birds that once inhabited the Hawaiian Islands.

The post Fossil feathers from a Hawaiian cave help reveal lineage of extinct, flightless ibis appeared first on Smithsonian Insider.

Smithsonian Secretary Wayne Clough, left, talks with Carlos Jaramillo, scientist at the Smithsonian Tropical Research Institute in Panama, at a research site near the Panama […]

The post Wayne Clough & Carlos Jaramillo, at a research site near the Panama Canal. appeared first on Smithsonian Insider.

Biologists from the Smithsonian's National Museum of Natural History, the Papua New Guinea National Museum, and the U.S. Geological Survey have discovered a new species of gecko, adorned like a bumblebee with black-and-gold bands and rows of skin nodules that enhance its camouflage on the tropical forest floor.

The post New ‘Bumblebee’ gecko discovered in Papua New Guinea appeared first on Smithsonian Insider.

Deep observations with NASA's Chandra X-ray Observatory of Cygnus OB2 have been used to detect the X-ray emission from the hot outer atmospheres, or coronas, of young stars in the cluster and to probe how these great star factories form and evolve.

The post Cygnus OB2: Probing a nearby stellar cradle appeared first on Smithsonian Insider.

Archaeologists working at the Smithsonian Tropical Research Institute in Panama have discovered a cluster of 12 unusual stones in the back of a small, prehistoric rock-shelter near the town of Boquete.

The post 4,000-year-old shaman’s stones discovered near Boquete, Panama appeared first on Smithsonian Insider.

Turtles have long been the subject of one the most contentious questions in evolutionary biology: where do they fit among vertebrates in the evolutionary tree […]

The post Turtle lineage solved in new study appeared first on Smithsonian Insider.

New data from NASA’s Chandra X-ray Observatory offer a glimpse into the environment of a star before it exploded earlier this year, and insight into […]

The post Chandra Observatory searches for trigger of nearby supernova appeared first on Smithsonian Insider.

The majestic feathers of the greater bird of paradise (Paradisaea apoda) have inspired people for thousands of years. Like many birds on the isolated island […]

The post Feathers of seduction – the connection between birds and people of New Guinea appeared first on Smithsonian Insider.

Neanderthals (Homo neanderthalensis) were widespread across Europe and Western Asia for a long time, starting about 400,000 years ago. But things began to change when […]

The post Why did Neanderthals go extinct? appeared first on Smithsonian Insider.

Formed some 250,000 years ago when the Nile River pushed through a low channel near Wadi Tushka, it flooded the eastern Sahara, creating a lake that at its highest level covered more than 42,000 square miles.

The post Ancient megalake discovered beneath Sahara Desert appeared first on Smithsonian Insider.

The Jamaican golden swallow was last seen in 1982. From 1994 to 2012, Smithsonian ornithologist Gary Graves combed the island of Jamaica to document several […]

The post After a nearly 20-year search, this Jamaican bird is probably extinct appeared first on Smithsonian Insider.

The post After a bulldozer unearthed five statues in Ain Ghazal, Jordan in 1984, Smithsonian conservators carefully restore these otherworldy figures appeared first on Smithsonian Insider.

The discovery of starch granules in the calculus on Neandertal teeth provides direct evidence that they made sophisticated, thoughtful food choices and ate more nutrient-rich plants, for example date palms, legumes and grains such as barley.

The post Starch grains found on Neandertal teeth debunks theory that dietary deficiencies caused their extinction appeared first on Smithsonian Insider.

A new genetic analysis has revealed that many Amazon tree species are likely to survive human-caused climate warming in the coming century, contrary to previous findings that temperature increases would cause them to die out.

The post Warming climate unlikely to cause near-term extinction of ancient Amazon trees, study says appeared first on Smithsonian Insider.

Life and the Earth have always evolved together. When it opens on June 8, 2019, the David H. Koch Hall of Fossils — Deep Time […]

The post Sneak Peek: David H. Koch Hall of Fossils appeared first on Smithsonian Insider.

The structural and nonlinear optical properties of a new anilinium hybrid crystal of chemical formula (C6H7NCl+·NO3−)3 have been investigated. The crystal structure was determined from single-crystal X-ray diffraction measurements performed at a temperature of 100 K which show that the compound crystallizes in a noncentrosymmetric space group (Pna21). The structural analysis was coupled with Hirshfeld surface analysis to evaluate the contribution of the different intermolecular interactions to the formation of supramolecular assemblies in the solid state that exhibit nonlinear optical features. This analysis reveals that the studied compound is characterized by a three-dimensional network of hydrogen bonds and the main contributions are provided by the O...H, C...H, H...H and Cl...H interactions, which alone represent ∼85% of the total contributions to the Hirshfeld surfaces. It is noteworthy that the halogen...H contributions are quite comparable with those of the H...H contacts. The nonlinear optical properties were investigated by nonlinear diffuse femtosecond-pulse reflectometry and the obtained results were compared with those of the reference material LiNbO3. The hybrid crystals exhibit notable second (SHG) and third (THG) harmonic generation which confirms its polarity is generated by the different intermolecular interactions. These measurements also highlight that the THG signal of the new anilinium compound normalized to its SHG counterpart is more pronounced than for LiNbO3.

A large The Actor statue is placed on stage during 21st Annual SAG Awards Behind The Scenes At The Shrine Auditorium Jan. 23, 2015 in Los Angeles.; Credit: Kevork Djansezian/Getty Images

Click here for KPCC's Awards Tracker

This Sunday's Screen Actors Guild Awards aren't as high profile as the Academy Awards, or even the Golden Globes, but they serve as one of the best predictors of who's going to take home a gold statue come Oscar night. Here's why.

Who votes for the SAG Awards?

SAG Award nominees are chosen by a committee of about 2,100 of the guild's members, according to awards news site Gold Derby. Then, all of the 111,228 members of the Guild have the chance to vote for their picks.

Meanwhile, the acting nominees for the Academy Awards are chosen by the 1,100 members in the Academy's actors branch, before being voted on by the Academy's full 5,700 members. Those actors are all part of SAG, so you're likely to see a strong correlation most years between the awards, particularly in the acting category.

How often do the SAG Awards predict the Oscar winners?

The SAG Awards have proven to be the best Oscar predictor in the acting category of any other major awards season prize since they began in 1995, both in nominations and winners. Of the 20 nominations and four winners from each shows, the overlap between the SAG Awards (aka "the Actors") and the Academy Awards in the last few years:

• 2009: 18 nominations; 3 winners
• 2010: 19 nominations; all 4 winners
• 2011: 17 nominations; all 4 winners
• 2012: 16 nominations; 3 winners
• 2013: 15 nominations; 3 winners
• 2014: 14 nominations; all 4 winners

This year, 17 nominees crossed over between the awards shows, with the Oscars matching up on all five nominations for best supporting actor and four of the five nominations in the other three acting categories.

Where have the SAG Awards differed from the Oscars?

SAG voters have lined up with the Academy on Best Actor 16 out of 20 times. The last time they differed from the Oscars was 2003, when Johnny Depp won at the SAG Awards for "Pirates of the Caribbean: Curse of the Black Pearl" before Sean Penn took the statue home at the Oscars for "Mystic River."

For Best Actress, SAG last split from Oscar in 2011, going with Viola Davis for "The Help" over eventual Oscar winner Meryl Streep for "The Iron Lady." They've matched up 14 out of 20 years.

In the supporting categories, the SAG Awards haven't fared as well. They went 12 for 20 in Best Supporting Actor, and 13 for 20 in Best Supporting Actress. That one also has an asterisk — one of those was a tie, so if you don't count that one, they're also only 12 for 20.

What does this all mean for the Oscars?

The SAG Awards remain the ones to watch when it comes to the acting awards — though their Best Ensemble category, the SAG Awards version of Best Picture, doesn't have a particularly strong correlation to the Oscars Best Picture winner. (For that, you'll want to watch for the Producers Guild Awards.)

We're tracking awards season and what experts are predicting; see KPCC's Awards Tracker below or click here to see the full page. You can watch the Screen Actors Guild Awards this Sunday at 5 p.m. Pacific, 8 p.m. Eastern on both TBS and TNT.

Disclosure: Mike Roe, along with other members of KPCC's staff, are members of the Screen Actors Guild as part of their employment with KPCC.

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

A new report from the National Research Council lays out options NASA could follow to detect more near-Earth objects (NEOs) – asteroids and comets that could pose a hazard if they cross Earths orbit.

There would not be sufficient benefit to updating estimates of the social cost of carbon (SCC) within a year based only on the revision of a specific climate parameter in the existing framework used by the government’s interagency group to measure the SCC, says a new interim report from the National Academies of Sciences, Engineering, and Medicine.

The technical update on the asset, which Wheaton Precious Metals owns a production stream on, is explored in a CIBC report.

New research has found evidence that a small Marine Protected Area (MPA) in the Mediterranean has the potential to deliver larvae of some fish species to surrounding, non-protected areas. This is one of few studies to investigate this desired role of MPAs and its design could be used to evaluate current and future MPAs elsewhere.

Using data gathered by satellites, scientists have monitored changes in fishing activity around Italy in the Mediterranean Sea for the period 2007-2010. From this, they developed new ecological indicators that gave a more detailed pattern of fishing activity in the Italian seas. In addition, the new indicators suggest that fish stocks on the seabed around Italy are continuing to decline.

A recent study has investigated how waste disposal sites in southern Italy have affected residents living nearby. Villagers reported being annoyed by odours, but the perceptions of residents living in the village closest to the facilities were possibly influenced by receiving financial compensation for the presence of the facilities.

Mediterranean red coral (Corallium rubrum), already endangered due to over-harvesting, is likely to suffer still further under increasing ocean acidification as a result of rising CO2 emissions. Research has shown that under more acidic conditions the structural development of red coral skeletons is abnormal and growth rate is reduced.

Marine litter is a major issue in deep sea ecosystems in the Mediterranean Sea, new research confirms. A recent study shows that the total weight of litter found in these sensitive areas often equals, and even exceeds, that of the animals that live there. This work can provide a baseline for assessments of the impact of deep sea marine litter and to inform future policy reforms, the researchers suggest.

The number of overexploited or collapsed fish stocks in the Mediterranean Sea has been increasing at a rate of approximately 38 every 10 years between 1970 and 2010, a new study has shown. In the Black Sea, the equivalent figure is 13 stocks per decade, the researchers found. The study’s authors augmented traditional methods of stock assessments with a variety of other data sources on multiple fish species to give a more accurate overview of these marine ecosystems. These results should be used to improve conservation and management, they recommend.

A survey of over 600 private boats docked in marinas throughout the Mediterranean showed that 71% are carrying non-indigenous species. In certain cases, non-indigenous species can become ‘invasive’ and have enormous and long-lasting impacts on ecosystems. The findings suggest that a common monitoring strategy may be necessary to prevent further disruptions to natural ecosystems.

Fish farming in the Mediterranean has increasingly shifted from producing fish such as grey mullet, which are herbivores near the bottom of the food chain, to species such as sea bass, which are predators. This ‘farming up’ the food chain requires wild fish to be caught to provide feed. A return to farming fish lower in the food chain would use marine resources more efficiently, a new study says.

A recent study has investigated how waste disposal sites in southern Italy have affected residents living nearby. Villagers reported being annoyed by odours, but the perceptions of residents living in the village closest to the facilities were possibly influenced by receiving financial compensation for the presence of the facilities.

28 Aug 2016: The Mediterranean diet is associated with a reduced risk of death in patients with a history of cardiovascular disease, according to results from the observational Moli-sani study presented at ESC Congress 2016 today.1

read more

Children living close to busy roads may have an increased risk of hyperactivity. They may also have more emotional problems, especially if they are exposed to higher levels of noise during the night, according to research carried out on children’s health in Germany.

Elderly people are at particular risk from the damaging health effects of hot summers in European Mediterranean cities, such as Athens, Barcelona and Lisbon, but in North African and Middle-Eastern Mediterranean cities, such as Tunis and Tel-Aviv, younger people are more vulnerable, a recent study concludes. This is particularly concerning, the researchers suggest, given the insufficient resources available to deal with this public health problem in some countries.

Warmer sea temperatures are increasing the toxic effect of sulphides on seagrass meadows in the Mediterranean Sea, new research reveals. Higher sea temperatures in the region, as projected using climate modelling, will therefore further threaten these habitats which are already declining from the damage caused by other human activities.

Climate change, tourism and population growth are all accelerating land degradation in the Mediterranean region, according to recent research. This can have severe impacts: the amount of available agricultural land per capita in the region could have dropped by half by 2020, compared with 1961, the study estimates. This article was updated 6.11.14 to correct an error in the valuation of ecosystem services provided by Mediterranean coastal wetlands.

Most emissions of nitrous oxide (N2O) are linked to the use of nitrogen (N) fertiliser in agriculture, highlighting a need for agricultural management practices that reduce emissions while maintaining agronomic productivity. A new study has assessed the long-term impact of conventional tillage (CT — where soil is prepared for agriculture via mechanical agitation) and no-tillage (NT) systems on soil N2O emissions and crop productivity in rain-fed Mediterranean conditions. The findings show that, over a period of 18 years, mean yield-scaled (i.e. per unit grain yield) soil N2O emissions (YSNE) were 2.8 to 3.3 times lower under NT than CT. The researchers therefore recommend NT as a suitable strategy by which to balance agricultural productivity with lower soil N2O emissions in rain-fed Mediterranean agroecosystems.

A recent study has investigated how waste disposal sites in southern Italy have affected residents living nearby. Villagers reported being annoyed by odours, but the perceptions of residents living in the village closest to the facilities were possibly influenced by receiving financial compensation for the presence of the facilities.

Researchers have trawled coastal areas of the Eastern Mediterranean and Black Sea for waste and found up to 1211 items of litter per km². Plastic bags and bottles were some of the most commonly found items. They present the results in a recent study, which they say supports Marine Strategy Framework Directive (MSFD) implementation, as well as efforts to discourage plastic carrier bag use.

A rough total of 1455 tonnes of floating plastic is present across the Mediterranean, estimates a new study. Researchers gathered floating plastics using trawl nets and found that microplastics with a surface area of around 1 square milimetre (mm²) were the most abundant size of plastic particles found.

Living near to green spaces may reduce likelihood of death due to any cause, and especially due to cardiovascular disease, according to a new study. The review is the first to systematically evaluate the evidence linking green spaces to risk of death.