386 research outputs found
Earthshine : Photometry, modeling, and spectral observations
The Earthshine group has been making sustained observations of the Earthshine from Big Bear Solar Observatory in California since late 1998. There have also been intermittent observations from 1994-5. High and low resolution Earthshine spectral observations have also been under taken at Palomar Observatory since 1999. The group has re-invigorated and modernized a nearly forgotten way of measuring the Earth\u27s albedo, and hence its energy balance, previously studied by Danjon (and his followers) for about twenty-five years early in the last century, using their observations of the Earthshine from France. This is an overview paper covering observations, reductions, simulations, and analysis, of the Earth\u27s reflectance from photometric and spectral observations of the moon. The Earthshine group developed a modern method of measuring, instantaneously, the large scale reflectance of the Earth. From California an observer sees the moon reflecting sunlight from the third of the Earth to the west in the evening (before midnight) which is during the moon\u27s rising phase and from the third of the Earth to the east in the morning (after midnight) which is during the moon\u27s declining phase. The group has precisely measured the scattering from the moon, as a function of lunar phase, which enables the measurement, in a typical night\u27s observations, the Earth\u27s reflectance to an accuracy of 2.0% (equivalent to measuring the Earth\u27s emission temperature to ~0.8 K). The group identified the lunar phase function as the major source of discrepancy between Danjon\u27s estimates of the albedo and more recent measurements. The albedo variation is due to the interplay of cloud cover and the different landscapes
Performing off the Pitch: An investigation of identity management strategies of professional footballers as part of their career transition from the Premier League
With an ever-increasing proportion of the global labour force having to change careers following a forced or unplanned end to their previous means of employment, the manner in which we view the idea of a career has dramatically changed in the last ten years. However, career change has always been present in the world of English professional football. Both press and academic enquiry regularly address the different aspects of retirement for those players who have been fortunate enough to enjoy relatively long sporting careers. In contrast, little is offered regarding the majority of professional players who get released from former clubs and experience an unplanned and early career transition away from their footballing profession.
This study is an investigation of the identity management strategies of professional footballers as part of their early career transition away from the English Premier League. Ten participants each took part in three individual vignette interviews (30 interviews). All participants had recently experienced their career transitions from their respective Premier League clubs. Additionally, single interviews were carried out with three Premier League Education and Welfare Officers. This study demonstrates how identity management and construction strategies can be understood through the working theoretical partnership of Goffman’s (1959) Dramaturgy and Marcus and Nurius’s Possible Selves (1986).
This thesis illustrates the existence of multiple identities belonging to footballers, directly challenging the thematic positioning of past research that lays emphasis on the conception of an exclusive athletic identity. Players offer performances portraying these multiple identities: performances that are influenced by the presence of differing social audiences and a desire to attain positive future possible selves and equally avoid negative possible selves. The career transitions of study participants proved to be smoother when audiences legitimised these performances. Difficulty arises when performances portrayed by participants are not dramatically realised by their audiences or are not supported by the context of their cultural environment. The data within this study underscore the idea that there is more to footballers than their ability to kick a ball, and that when such a fact is both understood and recognised their journey though their career transition can be a positive one
Deep Brain Stimulation: A Paradigm Shifting Approach to Treat Parkinson's Disease
Parkinson disease (PD) is a chronic and progressive movement disorder classically characterized by slowed voluntary movements, resting tremor, muscle rigidity, and impaired gait and balance. Medical treatment is highly successful early on, though the majority of people experience significant complications in later stages. In advanced PD, when medications no longer adequately control motor symptoms, deep brain stimulation (DBS) offers a powerful therapeutic alternative. DBS involves the surgical implantation of one or more electrodes into specific areas of the brain, which modulate or disrupt abnormal patterns of neural signaling within the targeted region. Outcomes are often dramatic following DBS, with improvements in motor function and reductions motor complications having been repeatedly demonstrated. Given such robust responses, emerging indications for DBS are being investigated. In parallel with expansions of therapeutic scope, advancements within the areas of neurosurgical technique and the precision of stimulation delivery have recently broadened as well. This review focuses on the revolutionary addition of DBS to the therapeutic armamentarium for PD, and summarizes the technological advancements in the areas of neuroimaging and biomedical engineering intended to improve targeting, programming and overall management
Available and emerging treatments for Parkinson’s disease: a review
Parkinson’s disease is a commonly encountered neurodegenerative disorder primarily found in aged populations. A number of medications are available to control symptoms, although these are less effective in advanced disease. Deep brain stimulation provides a practicable alternative at this stage, although a minority of patients meet the strict criteria for surgery. Novel medications that provide enhanced symptomatic control remain in developmental demand. Both gene and cell-based therapies have shown promise in early clinical studies. A major unmet need is a treatment that slows or stops disease progression
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Weathering the Storm: Riding the Waves of an Evolving Profession in Turbulent Times
Librarians are no strangers to re-envisioning themselves. From the closed stacks and “guardians of information” era, to the open learning commons and information desk model, we have evolved as needed to better serve the needs of our communities. As we adapt to changes in technology, information needs, and learning models, we aim to remain viable, maintain sustainable practices, and still feel invigorated by our profession. This can be a struggle given the need to continue some traditional aspects of librarianship, while trying to incorporate innovative information literacy practices, dynamic collection development, and cross-campus collaboration.. Non-library faculty and campus administration often have an “ideal library” in mind that doesn’t necessarily fit with the changing professional identity of some academic librarians. Library faculty often feel a sense of double-consciousness as they are asked to support other faculty, but also engage in their own teaching and scholarship. Additionally, as budgets shrink, it can be difficult to remain optimistic about the viability of the library. However, uncertain budgets, and a rapidly evolving environment has given one library a sense of opportunity and a desire to proactively change their identity on campus.
This panel focuses on how library faculty at one public liberal arts institution are working toward reframing themselves, their work, and their library. They will discuss the challenges and benefits of reframing information literacy sessions, and creating and teaching in an Information Studies minor. They will highlight the changes in workload as they looked to new ways of working with campus faculty on information literacy, collection development, and liaison work, and became involved in campus initiatives beyond the library. They will address the challenges and opportunities that arise from using students to staff the library’s information desk and teach database demonstrations in place of librarians. Finally, they will discuss how their identity is evolving to incorporate new Framework principles and what they envision for the future of their library. Attendees of this session will leave with an understanding of the benefits and challenges of changing public service models, liaison roles, and instruction and reference work for library faculty
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