Archive

Archive for the ‘arts and humanities’ Category

From Scan to Print: 3D Printing as a Means for Replication

October 9, 2014 Comments off

From Scan to Print: 3D Printing as a Means for Replication
Source: HP Labs

Replication, or making exact copies with consistent results, is at the heart of manufacturing. It is used in mass production of all kinds of items, from foodstuff to cars, from houses to books. But it is also used to reproduce already existing objects. In the 18th and 19th centuries plaster casting was used to bring the wonders of the world to private collections and museums. In the cast court of the Victoria and Albert Museum in London, a life sized replica of Trajan’s column [1] can be admired. The combination of a 3D scanner and printer offers the possibility of a new way to make a three dimensional copy of an existing object. Whereas in a plaster cast, where high fidelity is achieved by creating a physical mould from the original object, scanning does not require physical contact to the original. This can be an advantage when the object is fragile, but can lead to loss of fidelity during the reproduction process. We discuss the difficulties in achieving a truly high fidelity copy of even simple objects when a scanner and 3D printer are used for object replication.

About these ads

The cultural side of science communication

October 6, 2014 Comments off

The cultural side of science communication
Source: Proceedings of the National Academy of Sciences

The main proposition of this paper is that science communication necessarily involves and includes cultural orientations. There is a substantial body of work showing that cultural differences in values and epistemological frameworks are paralleled with cultural differences reflected in artifacts and public representations. One dimension of cultural difference is the psychological distance between humans and the rest of nature. Another is perspective taking and attention to context and relationships. As an example of distance, most (Western) images of ecosystems do not include human beings, and European American discourse tends to position human beings as being apart from nature. Native American discourse, in contrast, tends to describe humans beings as a part of nature. We trace the correspondences between cultural properties of media, focusing on children’s books, and cultural differences in biological cognition. Finally, implications for both science communication and science education are outlined.

Investing in English Skills: The Limited English Proficient Workforce in U.S. Metropolitan Areas

September 25, 2014 Comments off

Investing in English Skills: The Limited English Proficient Workforce in U.S. Metropolitan Areas
Source: Brookings Institution

An analysis of the labor market characteristics of the working-age limited English proficient (LEP) population in the United States and its largest metropolitan areas reveals that:

Nearly one in 10 working-age U.S. adults—19.2 million persons aged 16 to 64—is considered limited English proficient. Two-thirds of this population speaks Spanish, but speakers of Asian and Pacific Island languages are most likely to be LEP. The vast majority of working-age LEP adults are immigrants, and those who entered the United States more recently are more likely to be LEP.

Working-age LEP adults earn 25 to 40 percent less than their English proficient counterparts. While less educated overall than English proficient adults, most LEP adults have a high school diploma, and 15 percent hold a college degree. LEP workers concentrate in low-paying jobs and different industries than other workers.

Most LEP adults reside in large metropolitan areas, but their numbers are growing fastest in smaller metro areas. Eighty-two percent of the working-age LEP population lives in 89 large metropolitan areas, and 10 metro areas account for half of this population. Large immigrant gateways and agricultural/border metro areas in California and Texas have the largest LEP shares of their working-age populations. Smaller metro areas such as Cape Coral, Indianapolis, and Omaha experienced the fastest growth in LEP population between 2000 and 2012. Los Angeles was the only metro area to experience a decline.

Educational attainment and the native languages of LEP adults vary considerably across metro areas. The share who have completed high school ranges from 33 percent in Bakersfield to 85 percent in Jacksonville. Spanish is the most commonly spoken non-English language among LEP adults in 81 of the 89 large metro areas, but the share varies from a low of 5 percent in Honolulu to 99 percent in McAllen.

Most working-age LEP people are in the labor force. A majority across all 89 large metro areas is working or looking for work, and in 19 metro areas, at least 70 percent are employed. Workers proficient in English earn anywhere from 17 percent to 135 percent more than LEP workers depending on their metro location.

Eleanor Roosevelt as “Ordinary” Citizen and “Expert” on Radio in the Early 1950s

September 23, 2014 Comments off

Eleanor Roosevelt as “Ordinary” Citizen and “Expert” on Radio in the Early 1950s
Source: Sage Open

Eleanor Roosevelt, former First Lady of the United States, used radio to communicate on a wide variety of issues that she felt the American public, and women in particular, should know or think about. She had been a radio pioneer, broadcasting from the 1920s onward and starting with her own radio show in 1932. By the 1950s, radio as a technology began facing increasing competition from television. Yet, as a medium to reach mass audiences and women in particular, radio continued to play a vital role. From October 1950 until August 1951, Eleanor Roosevelt together with her son Elliott hosted a daily show on the National Broadcasting Company (NBC) called The Eleanor Roosevelt Program. Focusing on this 1950-1951 program, this article seeks to examine the way in which Mrs. Roosevelt communicated with her listeners and successfully blended that which at first sight might seem opposites: the domestic with the global, the informal mode of address with the serious topics, the public with the private, and the ordinary woman’s view with that of the expert international stateswoman.

UK — Quantifying and Valuing the Wellbeing Impacts of Culture and Sport

September 22, 2014 Comments off

Quantifying and Valuing the Wellbeing Impacts of Culture and Sport (PDF)
Source: Department for Culture, Media & Sport

Key Findings

Arts engagement
Arts engagement was found to be associated with higher wellbeing. This is valued at £1,084 per person per year, or £90 per person per month.

Library engagement
A significant association was also found between frequent library use and reported wellbeing. Using libraries frequently was valued at £1,359 per person per year for library users, or £113 per person per month.

Sport participation
Sport participation was also found to be associated with higher wellbeing. This increase is valued at £1,127 per person per year, or £94 per person per month.

Art and Judaica Looted by Nazis from Jews Still Largely Unidentified; Review of 50 Countries Shows Little Progress Despite International Pacts

September 12, 2014 Comments off

Art and Judaica Looted by Nazis from Jews Still Largely Unidentified; Review of 50 Countries Shows Little Progress Despite International Pacts
Source: Conference on Jewish Material Claims Against Germany (Claims Conference)

Claims Conference President Julius Berman announced that a new report shows that 15 years after the first international agreement regarding restitution of Nazi-era looted art, most countries have made little progress toward returning stolen cultural items to their rightful owners. A survey of 50 countries by the Conference on Jewish Material Claims Against Germany (Claims Conference) and the World Jewish Restitution Organization (WJRO) shows that two-thirds of the nations that have endorsed agreements regarding research, publicity and claims for Nazi-era looted art have done little or nothing to implement those pacts.

The Claims Conference/WJRO reviewed activity over the past 15 years regarding the identification of artworks, Judaica, and other cultural property plundered from Jews by the Nazis and their allies.While there have been some positive developments since the 2009 Prague Holocaust Era Assets Conference, only one-third of the participating nations have made major or substantial progress towards implementing the Washington Conference Principles on Nazi-Confiscated Art (endorsed by 44 countries in 1998) and the Terezin Declaration (endorsed by 47 countries in 2009). All of the countries are signatories to the Code of Ethics for Museums of the International Council of Museums (ICOM), which calls upon museums to establish the full provenance of items in their collections, but only a minority of museums has actually implemented this Code.

Soldiers, Spies and the Moon: Secret U.S. and Soviet Plans from the 1950s and 1960s: Declassified Documents Reflect the Covert Side of Lunar Programs

September 9, 2014 Comments off

Soldiers, Spies and the Moon: Secret U.S. and Soviet Plans from the 1950s and 1960s: Declassified Documents Reflect the Covert Side of Lunar Programs
Source: National Security Archive

Forty-five years ago, astronaut Neil Armstrong took his “one small step” for mankind, becoming the first person to set foot on the moon. The program that resulted in that historic event — managed by the National Aeronautics and Space Administration (NASA) — had been a very public one ever since its announcement by President John F. Kennedy in 1961. Even the Soviet government had publicized aspects of its own effort.

But there were also highly secret elements to the U.S. and Soviet schemes, which are the subject of today’s National Security Archive posting of previously classified records. The documents focus on three topics — early U.S. military plans, including the possibility of conducting nuclear tests in space, the use of the moon to reflect signals for military or intelligence purposes, and U.S. intelligence analyses and estimates of Soviet missions and their intentions to land a man on the lunar surface.

The posting includes:

  • Army and Air Force studies from 1959 – 1961 on the creation of a military lunar base, with possible uses as a surveillance platform (for targets on earth and space) and the Lunar Based Earth Bombardment System (Document 1a, Document 1b, Document 3, Document 4).
  • A study on the detonation of a nuclear device on or in the vicinity of the moon (Document 2).
  • The use of the lunar surface to relay signals from Washington to Hawaii and from U.S. spy ships (Document 15).
  • Collection of Soviet radar signals after they bounced off the moon — a technique known as Moon Bounce ELINT (Document 11, Document 14).
  • The U.S. theft and return of a Soviet space capsule during an exhibition tour (Document 13).
  • A 1965 estimate of Soviet intentions with regard to a manned moon landing (Document 5).
  • Several analyses of Soviet Luna missions, including Luna 9 — the first mission to result in a soft landing on the moon (Document 6, Document 7, Document 8, Document 10, Document 16).
Follow

Get every new post delivered to your Inbox.

Join 937 other followers