BornAgain is a free and open-source multi-platform software framework for simulating and fitting X-ray and neutron reflectometry, off-specular scattering, and grazing-incidence small-angle scattering (GISAS). This paper concentrates on GISAS. Support for reflectometry and off-specular scattering has been added more recently, is still under intense development and will be described in a later publication. BornAgain supports neutron polarization and magnetic scattering. Users can define sample and instrument models through Python scripting. A large subset of the functionality is also available through a graphical user interface. This paper describes the software in terms of the realized non-functional and functional requirements. The web site https://www.bornagainproject.org/ provides further documentation.

Staff had been on a pregnancy watch focused on the 3 1/2-year-old clouded leopard Jao Chu (JOW-chew) for four days. Jao Chu gave birth to the first cub at 6:04 p.m. and the second cub at 6:20 p.m.

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The Smithsonian’s National Zoo recently welcomed two litters of lion cubs over a three-week period – bringing the total number of cubs to seven during the summer of 2010.

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To help regulators and engineers develop and test such treatment systems, and ultimately enforce these standards, a team of researchers developed a statistical model to see how to count small, scarce organisms in large volumes of water accurately.

The post Smithsonian researchers help block ship-borne bioinvaders with new screening strategy appeared first on Smithsonian Insider.

Astronomers have just discovered an amazing pair of white dwarfs whirling around each other once every 39 minutes. This is the shortest-period pair of white dwarfs now known. Moreover, in a few million years they will collide and merge to create a single star.

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Sita (SEE-ta), a 2-year-old female clouded leopard at the Smithsonian Conservation Biology Institute in Front Royal, Va., gave birth to these two cubs on Monday, […]

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Five cheetah cubs were born May 28 to 6-year-old Amani at the Smithsonian Conservation Biology Institute in Front Royal, Va. Amani is a dedicated mother according to keepers, who have observed her nursing and grooming the cubs.

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Nearly 20 years after the Smithsonian Conservation Biology Institute became the first to produce an Eld’s deer fawn through artificial insemination, SCBI scientists have now contributed to the birth of the first Eld’s deer via in vitro fertilization.

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The young primate seems bright, alert, and increases its activity and independence day by day.

The post Howler monkey born at National Zoo appeared first on Smithsonian Insider.

Two Cuban crocodiles were born at the Smithsonian’s National Zoo on July 6 and 14 and they are among the most genetically valuable in the […]

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Mei Xiang (may-SHONG), the National Zoo’s female giant panda, gave birth to a cub Sunday, Sept. 16, at 10:46 p.m.

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The newest additions at the Reptile Discovery Center at the Smithsonian’s National Zoo are eight tentacled snakes, born Oct. 21 to parents that have not produced viable […]

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Two Andean bear cubs born at the National Zoo in the early morning of Dec. 13 to 6-year-old Billie Jean.

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The process of freezing materials such as fertilized eggs – cryopreservation – provides researchers with a tool to repopulate endangered species.

The post Klondike, puppy born from a frozen embryo, fetches good news for endangered animals appeared first on Smithsonian Insider.

Scientists at the Smithsonian Conservation Biology Institute are celebrating the birth of a female Przewalski’s (Cha-VAL-skee) horse—the first to be born via artificial insemination. The […]

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Animal keepers at the National Zoo have been hand feeding a female gray seal pup, born Jan. 21 at 10:21 p.m., in the holding area […]

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Save the Rhinos! Save the Elephants! Save the humans?! It seems strange to be connecting our own fate to that of wildlife but new research […]

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Scientists at the Smithsonian Conservation Biology Institute in Front Royal, Va., are celebrating the anniversary of the first birth of a Przewalski’s horse by artificial […]

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On September 14, 2015, the Laser Interferometer Gravitational-wave Observatory (LIGO) detected gravitational waves from the merger of two black holes 29 and 36 times the […]

The post Ligo’s Twin Black Holes Might Have Been Born Inside a Single Star appeared first on Smithsonian Insider.

For the first time in 25 years, primate staff at the Smithsonian’s National Zoo are celebrating the birth of a male Bornean orangutan. He was […]

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Great Cats keepers at the Smithsonian’s National Zoo are celebrating the birth of a Sumatran tiger, a critically endangered species. The cub’s mother, 8-year-old Damai, […]

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As you read here
In a 24-hour-period between July 9 and 10, 2009 a clouded leopard cub, a Przewalski's horse, and a red panda cub were all born at Smithsonian's National Zoo's Conservation and Research Center in Front Royal, Virginia.

The post A clouded leopard cub, a Przewalski’s horse and a red panda cub were all recently born at the Smithsonian’s National Zoo appeared first on Smithsonian Insider.

The National Zoo’s Great Cats team celebrated the arrival of its first litter of African lion cubs in four years. On Jan. 24, the Zoo’s […]

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Seven red panda cubs were born at the Smithsonian Conservation Biology Institute! The cubs were born to mothers Nutmeg, Regan and Leo Mei. Keepers are […]

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Around 6:30 a.m. on Aug. 23, 2015 veterinarians examined the cub Mei Xiang gave birth to at 5:35 p.m. Aug. 22, 2015 at the Smithsonian’s […]

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Oct. 4, 2016—The Smithsonian Conservation Biology Institute welcomed an Eld’s deer fawn Oct. 2 around 4:30 p.m. Both the fawn and her mom Sienna appear […]

The post Eld’s Deer Fawn Born at the Smithsonian Conservation Biology Institute appeared first on Smithsonian Insider.

The storage and flux of terrestrial carbon (C) is one of the most uncertain components of the global C budget and detailed quantification of forest […]

The post Remote sensing of a Smithsonian forest with airborne LiDAR appeared first on Smithsonian Insider.

As immigrants and their descendants become integrated into U.S. society, many aspects of their lives improve, including measurable outcomes such as educational attainment, occupational distribution, income, and language ability, but their well-being declines in the areas of health, crime, and family patterns, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Inherent features of registries that rely on voluntary participation and self-reported information make them fundamentally unsuitable for determining whether emissions from military burn pits in Iraq, Afghanistan, and other locations in Southwest Asia caused health problems in service members who were exposed to them, says a new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine.

An international team of astronomers using Hubble have been able to study stellar evolution in real time. Over a period of 30 years dramatic increases in the temperature of the star SAO 244567 have been observed. Now the star is cooling again, having been reborn into an earlier phase of stellar evolution. This makes it the first reborn star to have been observed during both the heating and cooling stages of rebirth.

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Ravinder Pal Singh, Chief Information and Innovation Officer at Vistara is leveraging the power of multiple technologies ranging from AI, Robotics, SATCOM, Bigdata (Science) and Blockchain to enhance the airline's critical business functions.

Researchers have measured the presence of carbon nanoparticles in the air over the Mediterranean Sea. The results revealed that higher concentrations are found in air that has moved over areas of industrial activity, and that the lowest layers of the atmosphere are likely to be responsible for transporting the nanoparticles.

Levels of airborne polycyclic aromatic hydrocarbons (PAHs) are falling at urban and rural sites in Europe and North America, according to recent research. These results contribute to growing evidence demonstrating that the legislation to reduce these harmful emissions has been successful. Concentrations of PAHs in urban areas were highest, the researchers found, but they were also declining at the fastest rate.

Pregnant women living within 16 km of unconventional gas wells in Colorado, US, are up to 30% more likely to give birth to a baby with a heart defect, new research has found. These findings suggest that more research is needed to understand the potential health impact of natural gas developments, say the researchers.

"Happy Halloween" and "Happy birthday" may not be sentiments heard very often in the same breath, according to a new study. The research finds that the number o

Today, Brody Moreland is a blur of motion as he chases toys. But for the first 6 months of his life, he barely moved. He was born with severe spina bifida.

My newborn child won’t stop crying My sister-in-law says he could have colic. I don’t even know what that means but it sounds serious. Got any natural remed

In the biggest city in America's smallest state, comes a micro-apartment complex that aims to revive a struggling 19th-century indoor shopping center.

Squeeze on in for a tour of the COMET, a 1960s Avalon camper transformed into a solar-powered mobile abode by Mariah Coz.

Here are 10 beautiful churches that have been converted into something else.

An earless rabbit allegedly born near Japan's severely damaged Fukushima nuclear plant has become the latest poster child for the side effects of radiation expo

A fireball that tears across the sky is not just a one-time skywatching event — it can reap scientific dividends long afterward. In fact, one that lit up Mexi

From sibling cannibalism to daring cliff dives, some animal babies face unimaginable survival tests.

A new scheme gives London's iconic-yet-disused phone booths a 21st century makeover as solar-powered gadget charging stations.

Once used for gas storage, the skeleton of the Victorian structure now frames a circular park.

With huge eyes in tiny bodies, baby jumping spiders have high-quality vision.

The soot that covers statues and buildings makes even more smog, eventually hitting our lungs.

Chanie Kirschner helps an expectant mom focus on the things she can control.

A quiet deal between two of the world’s leading energy technology clusters, puts Copenhagen at the center of the expanding cleantech universe. Highlights from

9-year-old Anaya Ellick is the proud recent winner of the Nicholas Maxim national handwriting contest. A remarkable feat, given that she doesn't have hands.