Hansen

Hansen, Marcus Lee, 1892-1938, American historian, b. Neenah, Wis. He spent almost four years in Europe gathering material for his studies on immigration. For The Atlantic Migration, 1607-1860 (1940), first volume of a projected trilogy, he was awarded (posthumously) the 1941 Pulitzer Prize for history. In 1928 he began teaching history at the Univ. of Illinois, where he was made full professor in 1930. He also wrote The Immigrant in American History (posthumous, 1940).

Hansen, William Webster, 1909-49, U.S. physicist, b. Fresno, Calif. Hansen received his doctorate in physics from Stanford in 1933 and joined the faculty there in 1934. He invented the high-quality cavity resonator on which the linear electron accelerator depends. During World War II he worked in New York on defense applications of physics and electronics, including radar. He is considered a founder of the field of microwave electronics.

or Hansen disease

Chronic disease of the skin, peripheral nerves, and mucous membranes of the nose, throat, and eyes, caused by the bacterium Mycobacterium leprae. In tuberculoid leprosy, cells of the immune system crowd into infected areas of the skin, forming hard nodules, or tubercles, that spread along nerve fibres. This type of reaction commonly leads to claw hand, gross deformity of the foot, and paralysis of muscles of the face, eye, and neck. In the lepromatous type, bacilli multiply freely in deep layers of the skin and spread widely through lymphatic channels and along nerve fibres, causing thickening and corrugation of the skin, raising soft nodules on the ears, nose, and cheeks, and sometimes destroying the septum of the nose and the palate. Leprosy has a long history. Until the 20th century, infected people were ostracized from society or at best segregated and cared for in isolated leper colonies. Today the disease is entirely curable through multidrug therapy, though tissue damage caused before drug treatment cannot be reversed. Some 600,000 new cases arise every year, mostly in Asia, Africa, Central and South America, and the Pacific Islands. About 60 percent of new cases occur in India.

Learn more about leprosy with a free trial on Britannica.com.

Hansen is a city in Twin Falls County, Idaho, United States. The population was 970 at the 2000 census. It is part of the Twin Falls, Idaho Micropolitan Statistical Area.

Geography

Hansen is located at (42.531246, -114.301550).

According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.0 km²), all of it land.

Demographics

As of the census of 2000, there were 970 people, 349 households, and 255 families residing in the city. The population density was 2,597.7 people per square mile (1,012.2/km²). There were 378 housing units at an average density of 1,012.3/sq mi (394.5/km²). The racial makeup of the city was 95.77% White, 0.31% African American, 0.82% Native American, 0.31% Asian, 0.10% Pacific Islander, 0.62% from other races, and 2.06% from two or more races. Hispanic or Latino of any race were 5.26% of the population.

There were 349 households out of which 39.3% had children under the age of 18 living with them, 56.4% were married couples living together, 11.5% had a female householder with no husband present, and 26.9% were non-families. 21.2% of all households were made up of individuals and 9.5% had someone living alone who was 65 years of age or older. The average household size was 2.78 and the average family size was 3.23.

In the city the population was spread out with 31.8% under the age of 18, 9.2% from 18 to 24, 27.2% from 25 to 44, 21.1% from 45 to 64, and 10.7% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 98.0 males. For every 100 females age 18 and over, there were 95.3 males.

The median income for a household in the city was $29,125, and the median income for a family was $32,750. Males had a median income of $26,607 versus $18,750 for females. The per capita income for the city was $12,339. About 11.7% of families and 15.8% of the population were below the poverty line, including 17.8% of those under age 18 and 20.4% of those age 65 or over.

References

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