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  2. Dual-energy X-ray absorptiometry - Wikipedia

    en.wikipedia.org/wiki/Dual-energy_X-ray...

    Dual-energy X-ray absorptiometry (DXA, or DEXA [1]) is a means of measuring bone mineral density (BMD) with spectral imaging. Two X-ray beams, with different energy levels, are aimed at the patient's bones. When soft tissue absorption is subtracted, the bone mineral density (BMD) can be determined from the absorption of each beam by bone. Dual ...

  3. Bone density - Wikipedia

    en.wikipedia.org/wiki/Bone_density

    A scanner used to measure bone density using dual energy X-ray absorptiometry. Bone density, or bone mineral density, is the amount of bone mineral in bone tissue.The concept is of mass of mineral per volume of bone (relating to density in the physics sense), although clinically it is measured by proxy according to optical density per square centimetre of bone surface upon imaging. [1]

  4. List of films in the public domain in the United States

    en.wikipedia.org/wiki/List_of_films_in_the...

    Some films are not listed here in order to keep this list to a manageable size. These include films that were released before 1930 (see Category:Films by year for pre-1930 films) and works of the United States government. Films released under a free license such as Creative Commons are also excluded.

  5. Physical Activity Guidelines for Americans - Wikipedia

    en.wikipedia.org/wiki/Physical_Activity...

    In 2018, HHS released an update to the first set of guidelines. This 2018 edition provides guidelines for people aged three years and older and summarizes the new knowledge gained from studies that were conducted since the first edition was released in 2008. These Guidelines can be tailored to meet individual interests, lifestyles, and goals.

  6. Senile osteoporosis - Wikipedia

    en.wikipedia.org/wiki/Senile_osteoporosis

    Primary, or involuntary osteoporosis, can further be classified into Type I or Type II. [1] Type I refers to postmenopausal osteoporosis and is caused by the deficiency of estrogen. [1] While senile osteoporosis is categorized as an involuntary, Type II, and primary osteoporosis, which affects both men and women over the age of 70 years.

  7. List of longest films - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_films

    Running time Director Year released Notes 120 Days of Sodom Literally: 172,800 min (2,880 hr / 120 days) Dan Kapelovitz 2025 [43] Logistics: 51,420 min (857 hr / 35 days, 17 hours) Erika Magnusson Daniel Andersson 2012 [44] Modern Times Forever: 14,400 min (240 hr / 10 days) Superflex: 2011 [45] Beijing 2003: 9,000 min (150 hr / 6 days, 6 hours ...

  8. The best tech for adults over 65 we spotted at CES this year

    www.aol.com/lifestyle/ces-2025-aging-in-place...

    We found the best technology for adults over 65 at CES this year. From AI aids to ‘aging in place’ smart home solutions, the annual tech show kept older users in mind.

  9. Single photon absorptiometry - Wikipedia

    en.wikipedia.org/wiki/Single_photon_absorptiometry

    Single photon absorptiometry is the first quantitative analysis method used in the diagnosis of osteoporosis. To evaluate bone quality, bone mineral content (BMC) and bone mineral density (BMD) are important indicators, and bone quality can reflect the health status of normal human bone tissue to a certain extent.