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Title: Contrails Digital Initiative from a Documents Librarian Point of View: NIDLSpring2015Handout
Creator: Ahrens, Aric G.
Date: 2015-05-14, 2015-05-15
Description: A presentation covering the period 1996-2015 with regards to the the Contrails Digital Initiative (fka Wright Air Development Center Digital...
Show moreA presentation covering the period 1996-2015 with regards to the the Contrails Digital Initiative (fka Wright Air Development Center Digital Collection). Covered are the conception of the project, features of the website over time, technological changes affecting the project, interactions with government officials over the content, changes in the project model based on changes in shallow web indexing algorithms of search engines, and plans for the future. Presented at the Spring 2015 meeting of the Northeastern Illinois Documents Librarians, on May 15th, 2015 in the Cherry Room of Paul V. Galvin Library on IIT's Main Campus.
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Title: Contrails Digital Initiative from a Documents Librarian Point of View: Contrails NIDL 2015
Creator: Ahrens, Aric G.
Date: 2015-05-14, 2015-05-15
Description: A presentation covering the period 1996-2015 with regards to the the Contrails Digital Initiative (fka Wright Air Development Center Digital...
Show moreA presentation covering the period 1996-2015 with regards to the the Contrails Digital Initiative (fka Wright Air Development Center Digital Collection). Covered are the conception of the project, features of the website over time, technological changes affecting the project, interactions with government officials over the content, changes in the project model based on changes in shallow web indexing algorithms of search engines, and plans for the future. Presented at the Spring 2015 meeting of the Northeastern Illinois Documents Librarians, on May 15th, 2015 in the Cherry Room of Paul V. Galvin Library on IIT's Main Campus.
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Title: Contrails Digital Initiative from a Documents Librarian Point of View
Creator: Ahrens, Aric G.
Date: 2015-05-14, 2015-05-15
Description: A presentation covering the period 1996-2015 with regards to the the Contrails Digital Initiative (fka Wright Air Development Center Digital...
Show moreA presentation covering the period 1996-2015 with regards to the the Contrails Digital Initiative (fka Wright Air Development Center Digital Collection). Covered are the conception of the project, features of the website over time, technological changes affecting the project, interactions with government officials over the content, changes in the project model based on changes in shallow web indexing algorithms of search engines, and plans for the future. Presented at the Spring 2015 meeting of the Northeastern Illinois Documents Librarians, on May 15th, 2015 in the Cherry Room of Paul V. Galvin Library on IIT's Main Campus.
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Title: Contrails: The Evolution of an Air Force Technical Reports Digitization Project: Contrails DLC Meeting Presentation
Creator: Ahrens, Aric G.
Date: 2005-10-18
Description: A presentation given at the Fall 2005 Depository Library Council Meeting in Washington, D.C. The presentation describes the efforts to make...
Show moreA presentation given at the Fall 2005 Depository Library Council Meeting in Washington, D.C. The presentation describes the efforts to make accessible to the researchers and the public a collection of Air Force technical reports left at IIT by the Crerar Library when they moved to the University of Chicago. Covered is the period 1996-2005.
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Title: Completing the Puzzle: Comparable Community Determination for Illinois Municipalities
Creator: Ahrens, Aric G.
Date: 2012-07-16, 1998-05
Description: In the process of negotiating for new contracts, public safety (i.e. Police and Firefighters) employee unions and municipal managers compare...
Show moreIn the process of negotiating for new contracts, public safety (i.e. Police and Firefighters) employee unions and municipal managers compare the essential elements of their contract (i.e. wages) with those of other “comparable” municipalities. The wages, benefits and working conditions of other “comparable” municipalities are used to provide evidence supporting the positions taken on both sides of the negotiating table. The problem is that negotiating teams rarely employ a consistent and accurate method to determine which municipalities should be compared to their own. Negotiating teams make their own determinations of comparability, which must be defended should arbitration proceedings become necessary. However, most of the methods of comparability determination currently employed by negotiating teams are extremely simple and are lacking a sound analytical basis. These methods are inadequate in terms of accuracy, and would be difficult to defend in arbitration proceedings. The method outlined in the following report provides a sound analytical basis for comparability determination. The recommendation is to employ the use of Comparability Tables. Comparability Tables : The Tables provide a list of which communities are most comparable to each particular community, and how comparable they are. This solution is augmented by three supporting elements which help to address the weaknesses apparent in the Comparability Tables. The three supporting elements are a Dissimilarity Matrix, Factor Analytic Rankings, and Factor Analytic Tables. Dissimilarity Matrix : The Matrix provides a comparability determination for communities not listed on a particular community’s Comparability Table. Factor Analytic Rankings : The Rankings allow a determination of why two communities are or are not comparable. Factor Analytic Tables : The Tables allow a quick reference to the particular characteristics of each community. The Comparability Tables, along with the supporting elements, provide negotiating teams with a list of comparable communities that is more accurate and defensible than the lists provided by other methods. This method describes which communities are comparable, how comparable they are, and why they are comparable. Negotiating teams who employ this method of comparability determination can approach their negotiations confident that their choice of comparable communities is accurate and can stand up to an arbitrator’s inquiry.
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Title: Inventory of complete NASA TR-R series including online availability or lack thereof via NASA Technical Reports Server
Creator: Ahrens, Aric G.
Date: 2016-11-01

Title: Inventory of complete NASA TR-R series including online availability or lack thereof via NASA Technical Reports Server: Listing of reports by report number, indicating online availability and evidence of public domain status
Creator: Ahrens, Aric G.
Date: 2016-11-01

Title: Inventory of complete NASA TR-R series including online availability or lack thereof via NASA Technical Reports Server: Comma delimited source file for inventory
Creator: Ahrens, Aric G.
Date: 2016-11-01

Title: Inventory of complete NASA TR-R series including online availability or lack thereof via NASA Technical Reports Server: Explanation of fields included in inventory, and where appropriate, the NASA Technical Report Server fields to which they map
Creator: Ahrens, Aric G.
Date: 2016-11-01

Title: Double Jeopardy: Womersley, McDonald, and WADC TR 56-614
Creator: Ahrens, Aric G.
Date: 2016-05-17
Description: An Air Force technical report, known by two titles and closeted from public view not once but twice, was freed of restrictions via Freedom of...
Show moreAn Air Force technical report, known by two titles and closeted from public view not once but twice, was freed of restrictions via Freedom of Information Act (FOIA) request filed by the staff of the Paul V. Galvin Library in 2015. This allowed the report to be scanned and posted online as part of Galvin's Contrails digital initiative. This presentation follows the history of the report and its importance in the field of hemodynamics. The report has been cited under one title at least 200 times, and under the other title at least 100 times, and continues to be cited under both titles to the present day. Theories are presented that explain the emergence of the two varying titles, the role of government restrictions on public availability of the report played in the continued inconsistency of citations, and the variation of the patterns of citations based on the type of publications in which the report was cited. In summation, this presentation will provide an anecdotal example of the damage inflicted on scientific research by arbitrary government restrictions on the availability of taxpayer funded research, illustrating the value of the successful FOIA request.
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Collection: Celebrating Our Successes Mini-Conference 2016

Title: Contrails: The Evolution of an Air Force Technical Reports Digitization Project: Contrails ISL Brochure
Creator: Ahrens, Aric G.
Date: 2006-05-04
Description: A presentation given at the 2006 Illinois State Library Annual Government Documents Conference held May 4th, 2006 in Springfield, Illinois....
Show moreA presentation given at the 2006 Illinois State Library Annual Government Documents Conference held May 4th, 2006 in Springfield, Illinois. The presentation describes the efforts to make accessible to researchers and the public a collection of Air Force technical reports left at IIT by Crerar Library when they moved to the University of Chicago. Covered is the period 1996-2006.
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Title: Contrails: The Evolution of an Air Force Technical Reports Digitization Project
Creator: Ahrens, Aric G.
Date: 2006-05-04
Description: A presentation given at the 2006 Illinois State Library Annual Government Documents Conference held May 4th, 2006 in Springfield, Illinois....
Show moreA presentation given at the 2006 Illinois State Library Annual Government Documents Conference held May 4th, 2006 in Springfield, Illinois. The presentation describes the efforts to make accessible to researchers and the public a collection of Air Force technical reports left at IIT by Crerar Library when they moved to the University of Chicago. Covered is the period 1996-2006.
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Title: Contrails: The Evolution of an Air Force Technical Reports Digitization Project: Contrails ISL Meeting Presentation
Creator: Ahrens, Aric G.
Date: 2006-05-04
Description: A presentation given at the 2006 Illinois State Library Annual Government Documents Conference held May 4th, 2006 in Springfield, Illinois....
Show moreA presentation given at the 2006 Illinois State Library Annual Government Documents Conference held May 4th, 2006 in Springfield, Illinois. The presentation describes the efforts to make accessible to researchers and the public a collection of Air Force technical reports left at IIT by Crerar Library when they moved to the University of Chicago. Covered is the period 1996-2006.
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Title: Gerry-meandering: An Assessment of the Congressional District Model of Depository Allocation (preprint): AhrensGriffinedrev2
Creator: Ahrens, Aric G., Griffin, Luke A.
Date: 2003-06
Description: The preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn...
Show moreThe preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn include the fact that due to redistricting that occurs after each decennial census, over time some districts may have within their boundaries a greater number than the two depositories that Congressional district allocation was intended to produce. Likewise, over time shifting boundaries of districts have created districts that have no depositories whatsoever.
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Title: Gerry-meandering: An Assessment of the Congressional District Model of Depository Allocation (preprint)
Creator: Ahrens, Aric G., Griffin, Luke A.
Date: 2003-06
Description: The preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn...
Show moreThe preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn include the fact that due to redistricting that occurs after each decennial census, over time some districts may have within their boundaries a greater number than the two depositories that Congressional district allocation was intended to produce. Likewise, over time shifting boundaries of districts have created districts that have no depositories whatsoever.
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Title: Gerry-meandering: An Assessment of the Congressional District Model of Depository Allocation (preprint): AhrensGriffinedrev1a
Creator: Ahrens, Aric G., Griffin, Luke A.
Date: 2003-06
Description: The preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn...
Show moreThe preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn include the fact that due to redistricting that occurs after each decennial census, over time some districts may have within their boundaries a greater number than the two depositories that Congressional district allocation was intended to produce. Likewise, over time shifting boundaries of districts have created districts that have no depositories whatsoever.
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Title: Easy Access, Early Exit? The Internet and the FDLP (preprint)
Creator: Griffin, Luke A., Ahrens, Aric G.
Date: 2004-07
Description: The article presents information on Federal Depository Library Program (FDLP). The majority of the twentieth century saw a marked growth in...
Show moreThe article presents information on Federal Depository Library Program (FDLP). The majority of the twentieth century saw a marked growth in the number of libraries participating in FDLP. The FDLP was established by Congressional resolution on December 27, 1813. On December 1, 1814, the American Antiquarian Society of Worcester, Massachusetts received the first documents distributed to a non-governmental body and became the first depository library. The primary purpose of the program was preservation of the historical record, not dissemination. Staff and funding issues and the availability of resources via the Internet points to the weight that libraries may be placing on the ability to provide information via the Internet on their decisions to remain in or to leave the FDLP. In today's work environment, in which increased productivity is expected and doing more with less is essential, the Internet can be an obvious alternative to physical collections, which require space and greater staff time and resources. In the last decade, the essential association between the ability to provide access to government information and participation in the FDLP has broken down.
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Title: Gerry-meandering: An Assessment of the Congressional District Model of Depository Allocation (preprint): AhrensGriffinfinalpreprint
Creator: Ahrens, Aric G., Griffin, Luke A.
Date: 2003-06
Description: The preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn...
Show moreThe preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn include the fact that due to redistricting that occurs after each decennial census, over time some districts may have within their boundaries a greater number than the two depositories that Congressional district allocation was intended to produce. Likewise, over time shifting boundaries of districts have created districts that have no depositories whatsoever.
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Title: Gerry-meandering: An Assessment of the Congressional District Model of Depository Allocation (preprint): AhrensGriffinedrev1
Creator: Ahrens, Aric G., Griffin, Luke A.
Date: 2003-06
Description: The preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn...
Show moreThe preprint of a published article dealing with the effect of allocating Federal Depositories by Congressional district. Conclusions drawn include the fact that due to redistricting that occurs after each decennial census, over time some districts may have within their boundaries a greater number than the two depositories that Congressional district allocation was intended to produce. Likewise, over time shifting boundaries of districts have created districts that have no depositories whatsoever.
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Title: Easy Access, Early Exit? The Internet and the FDLP (preprint): GriffinAhrens2004edrev2markup
Creator: Griffin, Luke A., Ahrens, Aric G.
Date: 2004-07
Description: The article presents information on Federal Depository Library Program (FDLP). The majority of the twentieth century saw a marked growth in...
Show moreThe article presents information on Federal Depository Library Program (FDLP). The majority of the twentieth century saw a marked growth in the number of libraries participating in FDLP. The FDLP was established by Congressional resolution on December 27, 1813. On December 1, 1814, the American Antiquarian Society of Worcester, Massachusetts received the first documents distributed to a non-governmental body and became the first depository library. The primary purpose of the program was preservation of the historical record, not dissemination. Staff and funding issues and the availability of resources via the Internet points to the weight that libraries may be placing on the ability to provide information via the Internet on their decisions to remain in or to leave the FDLP. In today's work environment, in which increased productivity is expected and doing more with less is essential, the Internet can be an obvious alternative to physical collections, which require space and greater staff time and resources. In the last decade, the essential association between the ability to provide access to government information and participation in the FDLP has broken down.
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