Reconstructing the development of legacy database platforms

Through the “Migrating Research Data Collections” project, we are working to better understand and support data collection migration and change over time. We are developing case studies of database migration at a number of memory institutions, first focusing on Natural History Museums (NHMs; Thomer, Rayburn and Tyler, 2020; Thomer, Weber and Twidale 2018). In developing our case studies, we have found that there are surprisingly few published histories of database platforms and software – particularly for domain- or museum-specific platforms. Additionally, documentation of the function and format of legacy systems can be quite hard to find. This has motivated our efforts to reconstruct the development history of the data systems described by our study participants in interviews. The timeline presented on this poster has been developed through review of academic publications (if any) and other documentation of these data systems. Much of this has been found through digital archival research (e.g. the Internet Archive’s Wayback Machine). The full dataset, with references, underlying this timeline is available at bit.ly/36vaEoM We are using this resource to contextualize the evolution of the data systems in each of our case studies, and we further hope this work will be of interest to others studying infrastructure development and change.IMLS # RE-07-18-0118-18http://deepblue.lib.umich.edu/bitstream/2027.42/162598/1/IDCC2020_FINALTOPRINT.pdfDescription of IDCC2020_FINALTOPRINT.pdf : PosterSEL

The craft of database curation: Taking cues from quiltmaking

Data migration within library, archive and museum collections is a critical process to maintaining collection data and ensuring its availability for future users. This work is also an under supported component of digital curation. In this poster we present the findings from 20 semi-structured interviews with archivists, collection managers and curators who have recently completed a data migration. One of our main findings is the similarities between craft work and migration practices in memory institutions. To demonstrate these similarities, we use quiltmaking as as a framework. These similarities include the practice of piecing multiple systems together to complete a workflow, relying on community collaboration, and inter-generational labor. Our hope is that by highlighting the craftful qualities already embedded in this work we can show alternative best practices to data migration and database management. This is in an effort to get a broader understanding of what a successful data migration can look like

The U.S. Army in the Iraq War – Volume 1: Invasion – Insurgency – Civil War, 2003-2006

The Iraq War has been the costliest U.S. conflict since the Vietnam War. To date, few official studies have been conducted to review what happened, why it happened, and what lessons should be drawn. The U.S. Army in the Iraq War is the Army’s initial operational level analysis of this conflict, written in narrative format, with assessments and lessons embedded throughout the work. This study reviews the conflict from a Landpower perspective and includes the contributions of coalition allies, the U.S. Marine Corps, and special operations forces. Presented principally from the point of view of the commanders in Baghdad, the narrative examines the interaction of the operational and strategic levels, as well as the creation of theater level strategy and its implementation at the tactical level. Volume 1 begins in the truce tent at Safwan Airfield in southern Iraq at the end of Operation DESERT STORM and briefly examines actions by U.S. and Iraqi forces during the interwar years. The narrative continues by examining the road to war, the initially successful invasion, and the rise of Iraqi insurgent groups before exploring the country’s slide toward civil war. This volume concludes with a review of the decision by the George W. Bush administration to “surge” additional forces to Iraq, placing the conduct of the “surge” and its aftermath in the second volume. This study was constructed over a span of 4 years and relied on nearly 30,000 pages of hand-picked declassified documents, hundreds of hours of original interviews, and thousands of hours of previously unavailable interviews. Original interviews conducted by the team included President George W. Bush, Secretary of State Condoleezza Rice, Secretaries of Defense Leon Panetta and Robert Gates, Chairmen of the Joint Chiefs of Staff, and every theater commander for the war, among many others. With its release, this publication, The U.S. Army in the Iraq War, represents the U.S. Government’s longest and most detailed study of the Iraq conflict thus far. NOTICE: Due to the high cost of printing, only a limited numbers of hard copies of The U.S. Army in the Iraq War will be produced. These copies will be distributed primarily to military educational institutions across the Joint force. Hardcopies of the study can be acquired through the Government Printing Office Bookstore. Organizations and individuals will be able to order printed copies. Both volumes of The U.S. Army in the Iraq War are available for pre-order through the GPO Bookstore. Volume 1 can be found here. And Volume 2 can be found here. ADDENDUM: The U.S. Army Heritage and Education Center (USAHEC) has no archive of declassified documents except for the declassified documents from U.S. Central Command (USCENTCOM) posted online here. USAHEC does not have the authority to declassify or to review OIF sources for release.https://press.armywarcollege.edu/monographs/1385/thumbnail.jp

Review Essay: From Victory to Failure, The Army Study of the Iraq War, 2003–2006

The U.S. Army in the Iraq War, ed. Joel D. Rayburn [Col., USA] and Frank K. Sobchak [Col., USA]. Vol. 1, Invasion, Insurgency, Civil War: 2003–2006. Carlisle, PA: U.S. Army War College Press, 2019. 742 pages. Sixteen years after the United States launched Operation IRAQI FREEDOM (OIF), the war remains highly controversial, and American troops continue to operate in Iraq, albeit at reduced force levels and with far more-limited operational and tactical objectives. Recognizing that it was time to take stock of the Army’s performance in a decade of operations, former Army Chief of Staff General Raymond T. Odierno initiated what the Army calls an “in-stride study” of the service’s performance, and the lessons it should derive therefrom. The result was a massive two-volume Army War College study edited by two Army colonels, Joel D. Rayburn and Frank K. Sobchak, and supported by a large staff that conducted hundreds of hours of interviews and reviewed thousands of pages of studies, memos, transcripts, and other materials, many of which were declassified specifically for the purposes of the study

Three Approaches to Documenting Database Migrations

Database migration is a crucial aspect of digital collections management, yet there are few best practices to guide practitioners in this work. There is also limited research on the patterns of use and processes motivating database migrations. In the “Migrating Research Data Collections” project, we are developing these best practices through a multi-case study of database and digital collections migration. We find that a first and fundamental problem faced by collection staff is a sheer lack of documentation about past database migrations. We contribute a discussion of ways information professionals can reconstruct missing documentation, and some three approaches that others might take for documenting migrations going forward. [This paper is a conference pre-print presented at IDCC 2020 after lightweight peer review.

Land Use / Land Cover Change And Impact On Carbon Stocks In The Atacora Chain Of Mountains, A Biodiversity Hotspot In Benin (West Africa)

Mountain areas are fragile ecosystems that play important roles in people’s livelihoods and maintenance of the global ecosystem through the provision of many ecosystem services. Land use/cover (LULC) change is considered one of the major threats to mountain areas due to its effects on ecosystem services including carbon stocks. In this study we assessed LULC change between 1987 and 2015 and its impact on aboveground carbon stocks in the Atacora Chain of Mountains (ACM) in Benin, West Africa. Supervised classification was performed to delineate LULC classes on three dates (1987, 2001 and 2015), and forest measurements carried out in the land cover classes, to estimate the aboveground biomass and the subsequent carbon stocks. Seven land cover classes were delineated: gallery forests, woodlands, savanna, water, settlements, bare lands and farm lands. LULC changes were characterized by three transitions: 1) the change of man-made land cover into savanna, 2) the change of natural vegetation into man-made land cover and 3) the degradation of gallery forests and woodland into less wooded vegetation. The aboveground carbon stock in gallery forests, woodland and tree savanna were significantly greater than in shrub savanna. During the 28 years of assessment, LULC change in gallery forests, woodland and savanna caused an estimated overall aboveground carbon release of 17.10% in the ACM. From the aboveground carbon quantity in the ACM, it appeared that this ecosystem is a potential carbon reservoir. Because the aboveground carbon stock in shrub savanna is significantly lower as compared to gallery forests, woodland and tree savanna and the rates of degradation from gallery forests and woodland to savanna are high, 53.62% and 59.99% respectively in 28 years, LULC change may undermine the ACM ability to store carbon and contribute to climate change mitigation. There is a need to investigate the drivers of this degradation for actions to preserve the natural vegetation in the ACM. Keywords: Atacora Chain of Mountains; Land use/land cover (LULC); Benin; West Africa; Carbon stock DOI: 10.7176/JEES/10-6-13 Publication date:June 30th 202

Initial United States experience with the Paracor HeartNet⁎⁎Paracor Medical, Inc, Sunnyvale, Calif. myocardial constraint device for heart failure

ObjectiveThis study was undertaken to review the initial results and surgical safety data for the US Food and Drug Administration safety and feasibility trial of the Paracor HeartNet (Paracor Medical, Inc, Sunnyvale, Calif.) myocardial constraint device.MethodsPatients with New York Heart Association functional class II or III heart failure underwent device implantation (n = 21) through a left minithoracotomy.ResultsThe average age was 53 years (31–72 years). There were 18 men and 3 women, and 17 patients had nonischemic etiology of heart failure. Mean heart failure duration was 8.3 years (1.4-18.8 years). Average ejection fraction was 22% (11%-33%), with an average left ventricular end-diastolic dimension of 74 mm (55-94 mm). Previous medical therapy included angiotensin-converting enzyme inhibitors, β-blockers, diuretics, digoxin, and aldosterone receptor blockers. At implantation, 17 patients had implantable electronic devices: 1 biventricular pacemaker, 11 biventricular pacemakers with cardioverter-defibrillators, and 5 implantable cardioverter-defibrillators. Patient comorbidities included hypertension in 10 cases, diabetes mellitus in 8, myocardial infarction in 1, and ventricular tachycardia in 8. Mean operative time was 68 minutes (42–102 minutes), and implantation time averaged 15 minutes (5–51 minutes). The average time to ambulation was 1.6 days (1–4 days). The intensive care unit stay averaged 3.3 days (1–16 days), and hospital stay averaged 6.3 days (4–16 days). Atrial fibrillation occurred in 2 patients, and there were 2 in-hospital deaths.ConclusionsThe Paracor device can be implanted in patients with heart failure and reduced left ventricular function with a high degree of success. Significant surgical complications were infrequent. The initial US experience supports the conduct of a randomized, controlled, pivotal trial

A review of the methodological features of systematic reviews in maternal medicine

Background In maternal medicine, research evidence is scattered making it difficult to access information for clinical decision making. Systematic reviews of good methodological quality are essential to provide valid inferences and to produce usable evidence summaries to guide management. This review assesses the methodological features of existing systematic reviews in maternal medicine, comparing Cochrane and non-Cochrane reviews in maternal medicine. Methods Medline, Embase, Database of Reviews of Effectiveness (DARE) and Cochrane Database of Systematic Reviews (CDSR) were searched for relevant reviews published between 2001 and 2006. We selected those reviews in which a minimum of two databases were searched and the primary outcome was related to the maternal condition. The selected reviews were assessed for information on framing of question, literature search and methods of review. Results Out of 2846 citations, 68 reviews were selected. Among these, 39 (57%) were Cochrane reviews. Most of the reviews (50/68, 74%) evaluated therapeutic interventions. Overall, 54/68 (79%) addressed a focussed question. Although 64/68 (94%) reviews had a detailed search description, only 17/68 (25%) searched without language restriction. 32/68 (47%) attempted to include unpublished data and 11/68 (16%) assessed for the risk of missing studies quantitatively. The reviews had deficiencies in the assessment of validity of studies and exploration for heterogeneity. When compared to Cochrane reviews, other reviews were significantly inferior in specifying questions (OR 20.3, 95% CI 1.1–381.3, p = 0.04), framing focussed questions (OR 30.9, 95% CI 3.7- 256.2, p = 0.001), use of unpublished data (OR 5.6, 95% CI 1.9–16.4, p = 0.002), assessment for heterogeneity (OR 38.1, 95%CI 2.1, 688.2, p = 0.01) and use of meta-analyses (OR 3.7, 95% CI 1.3–10.8, p = 0.02). Conclusion This study identifies areas which have a strong influence on maternal morbidity and mortality but lack good quality systematic reviews. Overall quality of the existing systematic reviews was variable. Cochrane reviews were of better quality as compared to other reviews. There is a need for good quality systematic reviews to inform practice in maternal medicine