National Academy of Sciences

The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the National Academy of Medicine (NAM). Wikipedia

National Academy of Sciences

The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the National Academy of Medicine (NAM). Wikipedia

Jun 28, 4:55 PM

Explore how the human body works through hands-on science this July at Koshland. Each session investigates a different aspect of the body everything from DNA to why our skin burns after too much sun exposure. Visitors can compare DNA and amino acids, experiment with biomedical engineering, discover the different lobes of the human brain, and much more! Explore how the human body works through hands-on science this July at Koshland. Each session investigates a different aspect of the body everything from DNA to why our skin burns after too much sun exposure. Visitors can compare DNA and amino acids, experiment with biomedical engineering, discover the different lobes of the human brain, and much more! Join us every Saturday in July from 11:00am to 2:00pm, starting Saturday, July 1. This program is free; registration is recommended but not required. Appropriate for ages 10+. See more at https://www.koshland-science-museum.org/ #Koshland #FreeInDc #HandsOn #10+ #health #DNA #sunburn #HumanBrain This program is free; registration is recommended but not required. Appropriate for ages 10+.

Jun 27, 2:53 PM

New from PNAS! Pictured is a close-up of the planet Jupiter taken by the @nasahubblespacetelescope in April 2017. Thomas S. Kruijer et al. found that the age of Jupiter could be estimated based on the molybdenum and tungsten isotope signatures in iron meteorites. The results suggest that Jupiter''s core may have formed within 1 million years of the Solar System''s formation. See the article by Kruijer et al. at www.pnas.org. Image courtesy of @nasa, @europeanspaceagency, and A. Simon (@nasagoddard). #PNAS #Jupiter #SolarSystem #molybdenum #tungsten #meteorites #isotopes

Jun 26, 2:21 PM

Top 10 reasons you should read more about statistician Morris Hansen 1. He was one of the biggest influences on modern survey methodology. 2. Thanks to him, the U.S. Census Bureau developed formal quality control in the 1930s. 3. His work helped statisticians put together theories and models to analyze errors in polls. 4. He pushed the Census Bureau into purchasing their first computer for statistical purposes. 5. His survey techniques were adopted by European governments and the private sector in conducting surveys. 6. His unemployment surveys in the Great Depression inspired the government to develop a monthly sample of employment starting in 1940. 7. He helped design surveys for the consumer price index and the national assessment of educational progress. 8. Sample surveys began acknowledging nonsampling error and bias in total survey design. 9. The importance of long-term and short-term research was recognized in survey analysis due to his advocacy. 10. State welfare programs were made more efficient due to his double sample regression estimator method. Read more about his work this #MemoirMonday bit.ly/NASHansen @UofWyoming, @AmericanUniversity, @USCensusBureau #MemoirMonday, #statistics, #surveys, #GreatDepression, #LaborStatistics #EmploymentStatistics, #ConsumerPriceIndex, #uwyo, #MorrisHansen

Jun 23, 4:03 PM

There''s still time to celebrate #NationalPollinatorWeek! Read one of our guest Facebook posts from #NASmember May Berenbaum or Gene Robinson. Both are professors at @illinois1867. Photo credit Zachary Huang, cyberbee.net #bees #honeybee #pollinator #PollinatorWeek #apiculture #bumblebee #EndangeredSpecies

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