The Maunakea Spectroscopic Explorer Book 2018

(Abridged) This is the Maunakea Spectroscopic Explorer 2018 book. It is intended as a concise reference guide to all aspects of the scientific and technical design of MSE, for the international astronomy and engineering communities, and related agencies. The current version is a status report of MSE's science goals and their practical implementation, following the System Conceptual Design Review, held in January 2018. MSE is a planned 10-m class, wide-field, optical and near-infrared facility, designed to enable transformative science, while filling a critical missing gap in the emerging international network of large-scale astronomical facilities. MSE is completely dedicated to multi-object spectroscopy of samples of between thousands and millions of astrophysical objects. It will lead the world in this arena, due to its unique design capabilities: it will boast a large (11.25 m) aperture and wide (1.52 sq. degree) field of view; it will have the capabilities to observe at a wide range of spectral resolutions, from R2500 to R40,000, with massive multiplexing (4332 spectra per exposure, with all spectral resolutions available at all times), and an on-target observing efficiency of more than 80%. MSE will unveil the composition and dynamics of the faint Universe and is designed to excel at precision studies of faint astrophysical phenomena. It will also provide critical follow-up for multi-wavelength imaging surveys, such as those of the Large Synoptic Survey Telescope, Gaia, Euclid, the Wide Field Infrared Survey Telescope, the Square Kilometre Array, and the Next Generation Very Large Array.Comment: 5 chapters, 160 pages, 107 figure

Management of cross-team interfaces in large-scale agile development

Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, System Design and Management Program, May, 2020Cataloged from the official version of thesis.Includes bibliographical references (pages 59-61).Agile product development promises improved productivity, fast development cycles, and high employee satisfaction. Large-scale agile development frameworks (e.g., SAFe, Sage, Scrum [at symbol] Scale, Spotify, LeSS) adapt agile principles for programs where multiple teams must work together to build complex products and services. In this research, we explore how large-scale agile organizations manage cross-team interfaces and dependencies. We reviewed existing frameworks and interviewed fourteen individuals from six different organizations. We learned that many large-scale agile practices act as coordination mechanisms. Large-scale agile programs use these coordination mechanisms to: (1) reduce the quantity and complexity of cross-team interfaces; (2) identify interfaces up front; (3) surface interfaces as they emerge in development; (4) manage interfaces during development; and (5) build a shared understanding between teams. Experienced practitioners consider how agile roles, events, artifacts, and other mechanisms contribute to coordination in each of these areas. While large-scale agile frameworks provide recommended practices, we suggest programs should adapt these approaches to fit their specific needs. Future research may help to evolve large-scale agile practices by further exploring: product, process and program architecture, coordination mechanisms and effectiveness, and leadership and accountability.by Lisa Crofoot.S.M. in Engineering and ManagementS.M.inEngineeringandManagement Massachusetts Institute of Technology, System Design and Management Progra

Field Anesthesia and Health Assessment of Free-ranging Cebus capucinus in Panama

Health and disease are critical factors for understanding primate evolution and for developing effective conservation and management strategies. However, comprehensive health assessments of wild primate populations are rare, in part because of the difficulty and risk of chemically immobilizing subjects to obtain the necessary biological samples. We report here the results of a health assessment, as well as the methods and drug dosages used to capture white-faced capuchins (Cebus capucinus) on Barro Colorado Island, Panama. We captured and measured 24 capuchins as part of an ongoing radiotelemetry study, and collected biological samples from 9 of them for a comprehensive health survey. Telazol® was very effective for immobilizing and capturing capuchins, although the doses we used were higher than those recommended for captive capuchins. High Telazol doses immobilized individuals quickly, ensuring that we were able to find and recover the sedated monkeys. The capuchins were generally in good condition, and had few ecto-, hemo-, or intestinal parasites. However, all but 1 of the adults had substantial dental abnormalities. In addition, 1 juvenile had indeterminate genitalia that we believe to be the result of hypospadias. Seven of the capuchins tested positive for exposure to Herpesvirus tamarinus and all individuals tested positive for exposure to Cebus cytomegalovirus. Hematology, serum chemistry, and plasma mineral levels from the wild individuals were, for the most part, comparable to those recorded for captive Cebus capucinus, and contribute to establishing baseline health values for the species.publishe

To pace or not to pace? A review of what abnormal repetitive behavior tells us about zoo animal management

This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record.Performance of abnormal repetitive behavior (ARB) is noted in many captive wild species. ARB can be categorized into 2 basic forms: those whose aim appears to be to compulsively reach an inappropriate goal and those whose performance is linked to an inappropriate motor function. Although the negative welfare connotations of ARBs are well known, the precise reason for their performance remains the subject of debate. As zoos move forward in collection planning and to gather more evidence on the biological needs of the species being kept, the idea that ARBs may be part of a coping function adds more weight to arguments that some species may not be suitable for the zoo at all. Modern-day definitions of animal welfare tell us to measure the well-being of the individual based on its attempts at coping with its immediate environment. A failure to cope, and hence performance of ARB, is an objective and measurable welfare metric that may highlight which species are appropriate for captivity. As conservation pressures on zoos mount, and the need to take in more captive-naive species increases, research on why captive wild animals develop ARB can be used to inform practice. In this article, we aim to review the welfare issues across 3 basic categories of zoo animal (mammals, birds, and ectothermic vertebrates) and critique how research into ARBs can be used by zoos to promote wild-type behavior patterns by providing biologically relevant management and husbandry regimes, which allow animals the key components of control and choice over what they do and how they do it

The Maunakea Spectroscopic Explorer Book 2018

(Abridged) This is the Maunakea Spectroscopic Explorer 2018 book. It is intended as a concise reference guide to all aspects of the scientific and technical design of MSE, for the international astronomy and engineering communities, and related agencies. The current version is a status report of MSE's science goals and their practical implementation, following the System Conceptual Design Review, held in January 2018. MSE is a planned 10-m class, wide-field, optical and near-infrared facility, designed to enable transformative science, while filling a critical missing gap in the emerging international network of large-scale astronomical facilities. MSE is completely dedicated to multi-object spectroscopy of samples of between thousands and millions of astrophysical objects. It will lead the world in this arena, due to its unique design capabilities: it will boast a large (11.25 m) aperture and wide (1.52 sq. degree) field of view; it will have the capabilities to observe at a wide range of spectral resolutions, from R2500 to R40,000, with massive multiplexing (4332 spectra per exposure, with all spectral resolutions available at all times), and an on-target observing efficiency of more than 80%. MSE will unveil the composition and dynamics of the faint Universe and is designed to excel at precision studies of faint astrophysical phenomena. It will also provide critical follow-up for multi-wavelength imaging surveys, such as those of the Large Synoptic Survey Telescope, Gaia, Euclid, the Wide Field Infrared Survey Telescope, the Square Kilometre Array, and the Next Generation Very Large Array