Pointing calibration of the MKIVA DSN antennas Voyager 2 Uranus encounter operations support

The MKIVA DSN introduced significant changes to the pointing systems of the 34-meter and 64-meter diameter antennas. To support the Voyager 2 Uranus Encounter, the systems had to be accurately calibrated. Reliable techniques for use of the calibrations during intense mission support activity had to be provided. This article describes the techniques used to make the antenna pointing calibrations and to demonstrate their operational use. The results of the calibrations are summarized

Early Days at Santee

History of the first 13 years of the Santee Normal Training School, written by one of the founders of the school. The Riggs family lived with and interacted with members of several indigenous groups while setting up and operating the school; the book records the traditions and customs of this with whom the Riggs\u27 interacted. Contains numerous images and drawings. Drawings were made by Reuben Dorian, a Santee student. The book was printed by students at the Santee Normal Training School. Content Warning: Contains period typical racism, violence, mentions of disease. Statement on Harmful Material Materials in UNK Archives and Special Collections are historical in nature and reflect the society in which they were produced. As such, they may contain racial, gender, sexual, religious, and other language and imagery that are offensive by today\u27s standards. The documents, images, publications, and other materials have been retained in order to fully represent the materials in their original format. If the offensive text is not in the original, but in a finding aid, catalog record, or other description created by library employees, please contact Archives and Special Collections to bring this to our attention. Archives & Special Collections is guided by the core values of the Society of American Archivists. If you have questions about this statement or about Archives and Special Collections’ work, we welcome your feedback. Please contact us at [email protected] or 308-865-8593.https://openspaces.unk.edu/spec-coll/1051/thumbnail.jp

Sperm donors’ accounts of lesbian recipients: heterosexualisation as a tool for warranting claims to children’s ‘best interests’

This is an Accepted Manuscript of an article published by Taylor & Francis in Psychology and Sexuality on 14 Mar 2013, available online: http://wwww.tandfonline.com/10.1080/19419899.2013.764921.Whilst there exists a considerable body of research documenting heterosexual couples’ use of donor sperm, relatively little is known about the experiences of lesbian recipients of donor sperm and the men who donate to them. Moreover, in all aspects of donor conception there is an ongoing debate over what constitutes children’s ‘best interests’, with this being most problematic in the unregulated private sector (of which lesbian use of donor sperm from gay men constitutes the largest portion). This article presents narratives of a sample of 16 gay men and one heterosexual man who had donated or who were in the process of donating sperm to lesbian recipients. Specifically, the article focuses on the ways in which the majority of the men elaborated a narrative in which their relationship to the birth mother was ‘heterosexualised’, a narrative that functioned to attribute to them a considerable role in determining the ‘best interests’ of donor-conceived children. The article concludes by providing suggestions for legislation and policy stemming from the findings, and recommends that greater attention be paid to the voices of donor-conceived children

The Overlooked Potential of Generalized Linear Models in Astronomy - I: Binomial Regression

Revealing hidden patterns in astronomical data is often the path to fundamental scientific breakthroughs; meanwhile the complexity of scientific inquiry increases as more subtle relationships are sought. Contemporary data analysis problems often elude the capabilities of classical statistical techniques, suggesting the use of cutting edge statistical methods. In this light, astronomers have overlooked a whole family of statistical techniques for exploratory data analysis and robust regression, the so-called Generalized Linear Models (GLMs). In this paper -- the first in a series aimed at illustrating the power of these methods in astronomical applications -- we elucidate the potential of a particular class of GLMs for handling binary/binomial data, the so-called logit and probit regression techniques, from both a maximum likelihood and a Bayesian perspective. As a case in point, we present the use of these GLMs to explore the conditions of star formation activity and metal enrichment in primordial minihaloes from cosmological hydro-simulations including detailed chemistry, gas physics, and stellar feedback. We predict that for a dark mini-halo with metallicity $\approx 1.3 \times 10^{-4} Z_{\bigodot}$, an increase of $1.2 \times 10^{-2}$ in the gas molecular fraction, increases the probability of star formation occurrence by a factor of 75%. Finally, we highlight the use of receiver operating characteristic curves as a diagnostic for binary classifiers, and ultimately we use these to demonstrate the competitive predictive performance of GLMs against the popular technique of artificial neural networks.Comment: 20 pages, 10 figures, 3 tables, accepted for publication in Astronomy and Computin

The Ethno- and Research History of the Lake Louise Field Station, Valdosta State University, Valdosta, GA

The history of the Lake Louise Field Station, from its 1951 purchase by George Leiby to its acquisition in 2009 by Valdosta State University, provides an interesting and varied look into the stewardship critical to teaching and research and the role played by the station in the development of the fields of paleoecology, paleotempestology and ethnohistory. During this 58-year period several individuals played critical roles in the development of this 76.9 hectare field station as a natural area for teaching and research. Notable among them were George and Louise Leiby who, working with Leo Lorenzo and Clyde Connell, set aside the station as a natural area for teaching and research. From the 1960s to the present, WA Watts, H Grissino-Mayer, J Tepper, D Hyatt, and J Pascarella and others have conducted research that has provided critical insight into the history and ecology of the area extending to 47,000 BP