An Agricultural continuum : a descriptive study of the farmworker population and the settling-out process : based on information collected under Contract no. HEW-OS-72-217.

"Jointly funded by the Department of Health, Education & Welfare and the Office of Economic Opportunity."

Investigation of executive agencies of the government. Report to the Select committee to investigate the executive agencies of the government pursuant to Senate resolution no. 217 (74th Congress) a resolution creating a Select committee to investigate executive agencies of the government with a view to coordination . ..

Mode of access: Internet.

Truck occupant protection. Prepared in response to Section 217 of the Motor Carrier Safety Act of 1984. Final report.

Mode of access: Internet.

Detailed estimates of Crysler island two-stage project (project C-217) : appendix I to the report of the Joint board of engineers (reconvened) on improvement of the international section of the St. Lawrence river, dated April 9, 1932.

Bound with United States. Department of state. ... Great-lakes-St. Lawrence deep waterway treaty.

Oeuvres complètes d'Ambroise Paré revues et collationnées sur toutes les éditions, avec les variantes; ornées de 217 planches et du portrait de l'auteur; accompagnées de notes historiques et critiques et précédées d'une introduction sur l'origine et les progrès de la chirurgie en occident du sixième au seizième siècle, et sur la vie et les ouvrages d'Ambroise Paré.

Doe:

Direct support and general support maintenance repair parts and special tools lists : tractor, wheeled, warehouse, gasoline, pneumatic-tired wheels 4000 pound drawbar pull Army model MHE-217, NSN 3930-00-181-3217, United Tractor model G40C.

Includes index.

Direct and general support maintenance manual : tractor, wheeled, warehouse, gasoline, pneumatic-tired wheels, 4,000 pound drawbar pull, Army model MHE-217, United Tractor model G40C, FSN 3920-181-3217.

Includes index.

Operator and organizational maintenance manual : tractor, wheeled, warehouse, gasoline, pneumatic-tired, 4,000 pound drawbar pull, Army model MHE-217, United Tractor model G40C, FSN 3930-181-3217.

Includes index.

Pb and Ba concentrations and Pb isotope ratios in EPICA Dome C ice 2-217 ky BP

A record of Pb isotopic compositions and Pb and Ba concentrations are presented for the EPICA Dome C ice core covering the past 220 ky, indicating the characteristics of dust and volcanic Pb deposition in central East Antarctica. Lead isotopic compositions are also reported in a suite of soil and loess samples from the Southern Hemisphere (Australia, Southern Africa, Southern South America, New Zealand, Antarctica) in order to evaluate the provenance of dust present in Antarctic ice. Lead isotopic compositions in Dome C ice support the contention that Southern South America was an important source of dust in Antarctica during the last two glacial maxima, and furthermore suggest occasional dust contributions from local Antarctic sources. The isotopic signature of Pb in Antarctic ice is altered by the presence of volcanic Pb, inhibiting the evaluation of glacial-interglacial changes in dust sources and the evaluation of Australia as a source of dust to Antarctica. Consequently, an accurate evaluation of the predominant source(s) of Antarctic dust can only be obtained from glacial maxima, when dust-Pb concentrations were greatest. These data confirm that volcanic Pb is present throughout Antarctica and is emitted in a physical phase that is free from Ba, while dust Pb is transported within a matrix containing Ba and other crustal elements.

The role of microcomputer-based laboratory display in supporting the construction of new understanding in kinematics

Teachers' failure to utilise MBL activities more widely may be due to not recognising their capacity to transform the nature of laboratory activities to be more consistent with contemporary constructivist theories of learning. This research aimed to increase understanding of how MBL activities specifically designed to be consistent with a constructivist theory of learning support or constrain student construction of understanding. The first author conducted the research with his Year 11 physics class of 29 students. Dyads completed nine tasks relating to kinematics using a Predict-Observe-Explain format. Data sources included video and audio recordings of students and teacher during four 70-minute sessions, students' display graphs and written notes, semi-structured student interviews, and the teacher's journal. The study identifies the actors and describes the patterns of interactions in the MBL. Analysis of students' discourse and actions identified many instances where students' initial understanding of kinematics were mediated in multiple ways. Students invented numerous techniques for manipulating data in the service of their emerging understanding. The findings are presented as eight assertions. Recommendations are made for developing pedagogical strategies incorporating MBL activities which will likely catalyse student construction of understanding.