Investigation of rock behavior and strength in situ and laboratory techniques adaptability to a lunar exploration program

Rock testing techniques for lunar landing site and for lunar samples returned to earth laborator

Techniques for measuring stresses in rock on the earth - Adaptability to a lunar exploration program

Techniques and instrument developments for stress measurements in rocks on earth and moo

The measurement of rock deformability in bore holes on earth. Adaptability to a lunar exploration program

Dilatometers, bore hole jacks, and penetrometers, for measurement of rock deformability in bore holes on eart

Teenage drinking and interethnic friendships.

This report explores the links between young people’s interethnic friendships and their drinking patterns and behaviours. Britain is a multicultural society, but little is currently known about if, and how, young people mix with friends from different ethnic backgrounds and the potential impact of this on drinking attitudes and behaviours. Research was undertaken to examine these links using quantitative and qualitative methods among a sample of 14-and 15-year-olds in diverse locations in London and Berkshire. The report: • explores the intra- and interethnic mix of young people’s friendship groups as described by young people in questionnaires and interviews; • analyses how drinking patterns vary by ethnicity, religion and gender; • investigates the links between young people’s background characteristics, their friendship groups (including the ethnicity of friends) and their reported drinking rates; and • looks at the implications of the findings, including recommendations for harm reduction based on education and peer support programmes

Matrix De Rham complex and quantum A-infinity algebras

I establish the relation of the non-commutative BV-formalism with super-invariant matrix integration. In particular, the non-commutative BV-equation, defining the quantum A-infinity-algebras, introduced in "Modular operads and Batalin-Vilkovisky geometry" IMRN, Vol. 2007, doi: 10.1093/imrn/rnm075, is represented via de Rham differential acting on the matrix spaces related with Bernstein-Leites simple associative algebras with odd trace q(N), and with gl(N|N). I also show that the Lagrangians of the matrix integrals from "Noncommmutative Batalin-Vilkovisky geometry and Matrix integrals", Comptes Rendus Mathematique, vol 348 (2010), pp. 359-362, arXiv:0912.5484, are equivariantly closed differential forms.Comment: published versio

Studying Migrant Assimilation Through Facebook Interests

Migrants' assimilation is a major challenge for European societies, in part because of the sudden surge of refugees in recent years and in part because of long-term demographic trends. In this paper, we use Facebook's data for advertisers to study the levels of assimilation of Arabic-speaking migrants in Germany, as seen through the interests they express online. Our results indicate a gradient of assimilation along demographic lines, language spoken and country of origin. Given the difficulty to collect timely migration data, in particular for traits related to cultural assimilation, the methods that we develop and the results that we provide open new lines of research that computational social scientists are well-positioned to address.Comment: Accepted as a short paper at Social Informatics 2018 (https://socinfo2018.hse.ru/). Please cite the SocInfo versio

Techniques development for whale migration tracking

Effort leading to the completion of development and fabrication of expansible whale harnesses and whale-carried instrument pods is described, along with details of the gear. Early preparative effort for a January-February 1974 field expedition is reported

Lunar surface engineering properties experiment definition Quarterly report, 1 Oct. - 31 Dec. 1968

Mechanical properties of simulated lunar soil

Material studies related to lunar surface exploration. Volume 4 - Preliminary studies for the design of engineering probes Final report, 6 Mar. 1967 - 30 Jun. 1968

Preliminary design of engineering probes for studying lunar surface material propertie