Proefschrift--Rijksuniversiteit te Groningen. / Summary also in Dutch.

“Studying the Shoah (Holocaust) forces students to consider what it means to be human and humane by examining the full continuum of individual behavior, from ultimate evil to ultimate good” (Lindquist, 2011, p. 26). The Pebbles for Peace project was created with the intention to explore these character extremes and to provide tangible examples of choices that can be made in life. This thesis is an autoethnographic exploration of the Pebbles for Peace project that will include the researcher’s narrative reflection on her personal journey through education, specifically Holocaust education, as well as observations of the impact on classroom participation in the project.

“Studying the Shoah (Holocaust) forces students to consider what it means to be human and humane by examining the full continuum of individual behavior, from ultimate evil to ultimate good” (Lindquist, 2011, p. 26). The Pebbles for Peace project was created with the intention to explore these character extremes and to provide tangible examples of choices that can be made in life. This thesis is an autoethnographic exploration of the Pebbles for Peace project that will include the researcher’s narrative reflection on her personal journey through education, specifically Holocaust education, as well as observations of the impact on classroom participation in the project.

The Consort Pebble Chert Quarry site (EkOr-8) is a Pre-Contact quarry site located south of the Village of Consort, Alberta. Despite knowledge of the site's existence by local area farmers, it was only in 1999 that it was first recorded as an archaeological site. It is described as a large area dominated by the presence of marked depressions that vary in size from less than a metre in depth and diameter to well over three metres in depth and diameter as well as an abundance of chert pebbles on the ground surface. Originally believed to be an example of meteorite impacts, the site was explored by geologists from the University of Calgary. Further visits by provincial archaeologists resulted in numerous theories as to the cause of the depression features and the purpose of the site. No archaeological investigation was undertaken prior to the summer of 2006.<p>No diagnostic artifacts were recovered from within the site area; however, a possible temporal indicator to site usage may be indicated based on the discovery of a Duncan projectile point in a site immediately to the south of the Consort Pebble Chert Quarry. An abundance of lithic artifacts were uncovered as results of the shovel test program undertaken by the author during the summer of 2006. The majority of these lithic artifacts were derived from the abundant lithic material within the site area known as pebble chert. No other non-lithic artifacts were found during the course of this excavation. <p>Shovel tests were used to provide an indication of the subsurface stratigraphy at the site. No evidence of cultural strata was found and the subsurface deposits present reflect a history of glacial landscapes. A number of glacial phenomena are the likely causes of the depression features. The presence of pebble chert on the ground surface; however, did make this area an attractive location for collecting unmodified lithic material in order to fashion stone tools. The existence of numerous artifacts made from pebble chert at the site indicates that past cultural groups had visited and collected from the area. An overview of archaeological sites on the Canadian Plains demonstrates that pebble chert is a valuable lithic material that was used in a wide variety of archaeological sites throughout the Pre-Contact era.

The Consort Pebble Chert Quarry site (EkOr-8) is a Pre-Contact quarry site located south of the Village of Consort, Alberta. Despite knowledge of the site's existence by local area farmers, it was only in 1999 that it was first recorded as an archaeological site. It is described as a large area dominated by the presence of marked depressions that vary in size from less than a metre in depth and diameter to well over three metres in depth and diameter as well as an abundance of chert pebbles on the ground surface. Originally believed to be an example of meteorite impacts, the site was explored by geologists from the University of Calgary. Further visits by provincial archaeologists resulted in numerous theories as to the cause of the depression features and the purpose of the site. No archaeological investigation was undertaken prior to the summer of 2006.<p>No diagnostic artifacts were recovered from within the site area; however, a possible temporal indicator to site usage may be indicated based on the discovery of a Duncan projectile point in a site immediately to the south of the Consort Pebble Chert Quarry. An abundance of lithic artifacts were uncovered as results of the shovel test program undertaken by the author during the summer of 2006. The majority of these lithic artifacts were derived from the abundant lithic material within the site area known as pebble chert. No other non-lithic artifacts were found during the course of this excavation. <p>Shovel tests were used to provide an indication of the subsurface stratigraphy at the site. No evidence of cultural strata was found and the subsurface deposits present reflect a history of glacial landscapes. A number of glacial phenomena are the likely causes of the depression features. The presence of pebble chert on the ground surface; however, did make this area an attractive location for collecting unmodified lithic material in order to fashion stone tools. The existence of numerous artifacts made from pebble chert at the site indicates that past cultural groups had visited and collected from the area. An overview of archaeological sites on the Canadian Plains demonstrates that pebble chert is a valuable lithic material that was used in a wide variety of archaeological sites throughout the Pre-Contact era.

Thesis (M.S.)--Florida State University, 2004. / Advisor: Dr. Walter R. Tschinkel, Florida State University, College of Arts and Sciences, Dept. of Biological Science. Title and description from dissertation home page (viewed Sept. 24, 2004). Includes bibliographical references.

No description available.

The objective of this study was to improve the operation of the classical semiautogenous and ball milling circuit also known as the SABC circuit. In order to achieve this goal, the challenges around this circuit were identified as the formation of critical sized material in a SAG mill. The size class considered for the critical sized material also known as pebbles was -100+23 mm. The attainable region (AR) method was used as an optimisation technique for the generated results using a computer simulation programme. MODSIM® demo version 3.6.22 is ore processing simulator that was used. The research was divided into two sections, the first being the variation of feed flow rate ranging from 50 – 150 tph and ore feed size ranging between 100 and 600 mm. The second section compared the variation of the operating parameters of the SAG mill, which were mill filling, ball filling, ball size and mill speed. The AR technique graphically presented the results which indicated the best operating conditions to minimise pebble formation. The effects of mill filling on a SAG mill indicate that a higher filling produces lower pebbles. Lower pebble generation also was observed at a higher ball filling. The influence of ball size indicated that the larger ball size was more effective in the reduction of pebbles. For mill speed the media displayed two common mode operations namely cascading at a low speed of 65% and cataracting at higher speed of 75%. The higher speed generated the least pebbles. / College of Engineering, Science and Technology / M. Tech. (Chemical Engineering)