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Search Results: 1 - 10 of 402532 matches for " Pamela M. Marcum "
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The Ultraviolet Morphology of Galaxies
Robert W. O'Connell,Pamela Marcum
Physics , 1996,
Abstract: Optical band images of distant (z > 0.5) galaxies, such as those of the Hubble Deep Field, record light from the rest-frame vacuum ultraviolet (< 3000 A). Because the appearance of a galaxy is a very strong function of wavelength, and especially so in the UV, evolutionary studies of distant galaxies can be seriously influenced by a "morphological k-correction" effect. We use images obtained by the Ultraviolet Imaging Telescope during the Astro missions to explore the extent of this effect and intercompare far-UV with optical morphologies for various types of galaxies.
Ultraviolet Signposts of Resonant Dynamics in the Starburst-Ringed Sab Galaxy, M94 (NGC 4736)
William H. Waller,Michael N. Fanelli,William C. Keel,Ralph Bohlin,Nicholas R. Collins,Barry F. Madore,Pamela M. Marcum,Susan G. Neff,Robert W. O'Connell,Joel D. Offenberg,Morton S. Roberts,Andrew M. Smith,Theodore P. Stecher
Physics , 2000, DOI: 10.1086/319384
Abstract: M94 (NGC 4736) is investigated using images from the Ultraviolet Imaging Telescope (FUV-band), Hubble Space Telescope (NUV-band), Kitt Peak 0.9-m telescope (H-alpha, R, and I bands), and Palomar 5-m telescope (B-band), along with spectra from the International Ultraviolet Explorer and Lick 1-m telescopes. The wide-field UIT image shows FUV emission from (a) an elongated nucleus, (b) a diffuse inner disk, where H-alpha is observed in absorption, (c) a bright inner ring of H II regions at the perimeter of the inner disk (R = 48 arcsec. = 1.1 kpc), and (d) two 500-pc size knots of hot stars exterior to the ring on diametrically opposite sides of the nucleus (R= 130 arcsec. = 2.9 kpc). The HST/FOC image resolves the NUV emission from the nuclear region into a bright core and a faint 20 arcsec. long ``mini-bar'' at a position angle of 30 deg. Optical and IUE spectroscopy of the nucleus and diffuse inner disk indicates an approximately 10^7 or 10^8 yr-old stellar population from low-level starbirth activity blended with some LINER activity. Analysis of the H-alpha, FUV, NUV, B, R, and I-band emission along with other observed tracers of stars and gas in M94 indicates that most of the star formation is being orchestrated via ring-bar dynamics involving the nuclear mini-bar, inner ring, oval disk, and outer ring. The inner starburst ring and bi-symmetric knots at intermediate radius, in particular, argue for bar-mediated resonances as the primary drivers of evolution in M94 at the present epoch. Similar processes may be governing the evolution of the ``core-dominated'' galaxies that have been observed at high redshift. The gravitationally-lensed ``Pretzel Galaxy'' (0024+1654) at a redshift of approximately 1.5 provides an important precedent in this regard.
The impact of an immunization training certificate program on the perceived knowledge, skills and attitudes of pharmacy students toward pharmacy-based immunizations
Marcum,Zachary A.; Maffeo,Carrie M.; Kalsekar,Iftekhar;
Pharmacy Practice (Internet) , 2010, DOI: 10.4321/S1886-36552010000200004
Abstract: objective: to assess the impact of a national immunization training certificate program on the perceived knowledge, skills and attitudes of pharmacy students toward pharmacy-based immunizations. methods: the study design utilized a pre- and post-survey administered to pharmacy students before and after the american pharmacists association′s (apha) pharmacy-based immunization delivery program. the primary outcome explored was a change in the perceived knowledge, skills, and attitudes of the pharmacy students. a five-point likert scale (i.e. strongly agree = 5, strongly disagree = 1) was used for measuring the main outcomes, which was summated by adding the individual item scores in each section to form a composite score for each outcome. results: the certificate training program resulted in a significant improvement in knowledge (38.5% increase in score, p<0.001) and skills (34.5% increase in score, p<0.001), but not attitudes (1% increase in score, p=0.210). conclusions: the national immunization training certificate program had a positive impact on the perceived knowledge and skills of pharmacy students. however, no change was observed regarding students′ perceived attitudes toward pharmacy-based immunizations.
Stratospheric Observatory for Infrared Astronomy
M. Hamidouche,E. Young,P. Marcum,A. Krabbe
Physics , 2010,
Abstract: We present one of the new generations of observatories, the Stratospheric Observatory For Infrared Astronomy (SOFIA). This is an airborne observatory consisting of a 2.7-m telescope mounted on a modified Boeing B747-SP airplane. Flying at an up to 45,000 ft (14 km) altitude, SOFIA will observe above more than 99 percent of the Earth's atmospheric water vapor allowing observations in the normally obscured far-infrared. We outline the observatory capabilities and goals. The first-generation science instruments flying on board SOFIA and their main astronomical goals are also presented.
Holistic Rationality and a Complement Model for Natural Sciences and Christian Theology Interaction
James A. Marcum
REVER : Revista de Estudos da Religi?o , 2007,
Abstract: A complement model is proposed to account for the interaction between the natural sciences and Christian theology that cultivates cooperation between the two disciplines. This model is based upon a conception of holistic rationality, in which the two main epistemological conceptions of rationality—instrumental and categorical—are enriched in terms of the axiological and metaphysical stances towards what is preferably and possibly knowable and of an epistemic subject’s ethical stance. The axiological and the ethical stances consist of values and virtues, respectively, while the metaphysical stance involves absolute presuppositions. This conception of rationality, in which rules and principles or ends and means, are expanded with respect to values, virtues, and presuppositions, permits an analysis of the interplay between science and theology at a foundational level in terms of the formulation, appraisal, and acceptance of scientific and theological knowledge. Moreover, it provides practitioners in both disciplines an opportunity to combine rationally in a complementary fashion their epistemic claims to form a comprehensive world picture, which captures the world’s complexity but still maintains the integrity of each discipline’s epistemic claims.
Explorando as Fronteiras Racionais entre as Ciências Naturais e a Teologia Crist
James A. Marcum
REVER : Revista de Estudos da Religi?o , 2007,
Abstract: The reticulated model of scientific rationality includes the goal of the investigation, the method by which the goal is achieved, and the epistemic values needed to assess whether the goal was achieved by the applied method. I expand this model of rationality to include metaphysical assumptions and commitments that inform the origins of epistemic claims. I then explore the rational boundaries between the natural sciences and Christian theology in terms of goals, methods, and metaphysics. Finally, I discuss the advantages and problems of exploring the rational boundaries between science and theology.
The Role of Empathy and Wisdom in Medical Practice and Pedagogy: Confronting the Hidden Curriculum
James A. Marcum
Journal of Biomedical Education , 2013, DOI: 10.1155/2013/923810
Abstract: The role of the virtues of empathy and wisdom in clinical practice is used to address two crises facing modern medicine—quality of care and professionalism. To that end, these virtues are initially explored individually and then collectively in terms of a synergistic relationship between them. Next, how empathy and wisdom guide and empower clinical practice, especially in terms of their synergistic relationship, is discussed vis-à-vis the two crises. The “Grand Rounds” scene from “W;t”—Margaret Edson’s 1999 Pulitzer prize-winning play—is used to illustrate how these virtues function with respect to providing quality care in a professional manner. The paper concludes with a discussion of the challenges facing the pedagogy of equipping medical students, residents, and even practicing clinicians with virtues like empathy and wisdom. 1. Introduction In a study exploring the educational experiences of medical students, Coulehan and Williams from Stony Brook University Medical Center recount the story of a first-year student who arrives on campus with a heart full of empathy to meet patients’ needs. However, by the end of the student’s medical education she is no longer enthusiastic about medicine and serving patients but turns inward in order to survive the personal hardships, if not abuse, she faces daily as a medical student. In response to a questionnaire, she writes, “I’ve become numb. So much of what I do as a student is stuff that I do not fully believe it. And rather than try to change everything that I consider wrong in the hospital or the community at large.” She confesses, “I just try to get through school in the hope that I will move on to bigger and better things when I have more control over my circumstances” [1, page 599]. Unfortunately, her story is common for many medical students. In a recent study involving the educational experiences of medical students, Michalec reports that a knowledge gap exists between students and laypersons, with detrimental consequences for students’ ability to connect with others—especially with patients. “Preclinical students… spoke not merely of having trouble communicating with laypersons because of distinctiveness of what they were learning,” writes Michalec, “but that what they were learning was also powerful and was accompanied by a level of authority, according to their instructors” [2, page 274]. He goes on to note that the outcome of the knowledge gap between medical students and laypersons was a sense of superiority on the part of the students towards others, particularly patients, who lacked such
Yet Another Statistical Analysis of Bob Ross Paintings
Christopher Steven Marcum
Statistics , 2015,
Abstract: In this paper, we analyze a sample of clippings from paintings by the late artist Bob Ross. Previous work focused on the qualitative themes of his paintings (Hickey, 2014); here, we expand on that line of research by considering the colorspace and luminosity values as our data. Our results demonstrate the subtle aesthetics of the average Ross painting, the common variation shared by his paintings, and the structure of the relationships between each painting in our sample. We reveal, for the first time, renderings of the average paintings and introduce "eigenross" components to identify and evaluate shared variance. Additionally, all data and code are embedded in this document to encourage future research, and, in the spirit of Bob Ross, to teach others how to do so.
Structural Examination of 6-Methylsulphonylphenanthro- [9,10-C]-furan-1(3H)-one—A Rofecoxib Degradation Product
Pamela M. Dean
Pharmaceuticals , 2010, DOI: 10.3390/ph3020369
Abstract: In the attempt to discover a new polymorph of rofecoxib (Vioxx?), an unexpected product resulted. The product was characterised by chemical composition, thermal behaviour and structure and found to be 6-methylsulphonylphenanthro-[9,10-C] furan-1(3 H)-one, a photo-cyclization degradation product of rofecoxib. This is a significant finding because it indicates that without appropriate control of the recrystallisation procedures, the structural integrity of rofecoxib may be seriously compromised.
Security of Energy Supply in the New Europe: A Role for the European Atomic Energy Community in the European Union’s Neighbourhood Policy?
Pamela M. Barnes
Journal of Contemporary European Research , 2008,
Abstract: External energy relations are essential components of both the European Union’s search for an overall energy strategy, an Energy Policy for Europe (EPE) and the development of the European Neighbourhood Policy (ENP). In this article questions are posed about the role for the use of nuclear technology as the means of meeting some of the objectives of both areas of policy. As both the EPE and the ENP are dependent on the negotiation of international agreements with third parties for their effectiveness the focus of analysis presented will be on the EU’s legal and constitutional framework for action and in particular the EURATOM Treaty which established the European Atomic Energy Community in 1957.
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