Raw as Archival Still Image Format: A Consideration

Source materials like fine art, over-sized, fragile maps, and delicate artifacts have traditionally been digitally converted through the use of controlled lighting and high resolution scanners and camera backs. In addition the capture of items such as general and special collections bound monographs has recently grown both through consortial efforts like the Internet Archive's Open Content Alliance and locally at the individual institution level. These projects, in turn, have introduced increasingly higher resolution consumer-grade digital single lens reflex cameras or "DSLRs" as a significant part of the general cultural heritage digital conversion workflow. Central to the authors' discussion is the fact that both camera backs and DSLRs commonly share the ability to capture native raw file formats. Because these formats include such advantages as access to an image's raw mosaic sensor data within their architecture, many institutions choose raw for initial capture due to its high bit-level and unprocessed nature. However to date these same raw formats, so important to many at the point of capture, have yet to be considered "archival" within most published still imaging standards, if they are considered at all. Throughout many workflows raw files are deleted and thrown away after more traditionally "archival" uncompressed TIFF or JPEG 2000 files have been derived downstream from their raw source formats [1][2]. As a result, the authors examine the nature of raw anew and consider the basic questions, Should raw files be retained? What might their role be? Might they in fact form a new archival format space? Included in the discussion is a survey of assorted raw file types and their attributes. Also addressed are various sustainability issues as they pertain to archival formats with a special emphasis on both raw's positive and negative characteristics as they apply to archival practices. Current common archival workflows versus possible raw-based ones are investigated as well. These comparisons are noted in the context of each approach's differing levels of usable captured image data, various preservation virtues, and the divergent ideas of strictly fixed renditions versus the potential for improved renditions over time. Special attention is given to the DNG raw format through a detailed inspection of a number of its various structural components and the roles that they play in the format's latest specification. Finally an evaluation is drawn of both proprietary raw formats in general and DNG in particular as possible alternative archival formats for still imaging.

Rights at Risk: Refugees in the New South Africa

This thesis seeks to analyze the relationship between public attitudes toward refugees in a refugee receiving state and the realization of the legal rights afforded refugees (de facto rights). I hypothesize that the more negative a host culture is toward refugees, the less refugees are able to realize their rights. Conversely, the more positive a host culture is toward refugees, the more refugees are able to realize their rights. I test the hypothesis through a case study of refugee populations in Cape Town, South Africa, based on research conducted from May to June 2007. The orientation (positive or negative) of the host culture's perceptions toward a refugee group (Independent Variable) is measured through: (1) a coded content analysis of the South African media, (2) a coded content analysis of semi-structured interviews, and (3) an assessment of secondary source public opinion surveys and reports. The realization of refugee rights (Dependent Variable) is operationalized as a function of two rights: (1) the right to personal physical integrity and (2) the right to protection from unlawful detention. These rights are measured by coding (1) media reports and (2) interviews, and by (3) assessing NGO reports and secondary source public opinion surveys. My empirical data shows that the cultural orientation toward refugees is not overwhelmingly negative, and the realization of rights is not conclusively "low." However, the frequency of data coded "negative" and "low" versus "positive" or "high" suggest that South Africans regard refugees somewhat negatively and that rights are not fully realized. This finding is strengthened by the analysis of secondary sources and field notes.

The Acceleration of Stock Options in Anticipation of FAS 123 (R)

The Financial Accounting Standards Board (FASB) mandated the expensing of stock options with FAS 123 (R). As of March 2006, 749 companies had accelerated the vesting of their employee stock options and avoided a reduction in their reported profits that otherwise would have occurred under the new standard. There are many different motives for the acceleration strategy, and the focus of this study is to determine whether shareholders viewed these motives as either positive or negative. A favorable return subsequent to an acceleration announcement would signify that shareholder's viewed management's motives as positive. An unfavorable return subsequent to an acceleration announcement would signify that shareholder's viewed management's motives as negative. The evidence from this study suggests that shareholders reacted favorably, on average, to acceleration announcements. However, these results lack statistical significance and are based on a small sample, thus, they should be interpreted with caution.