A study of the contributions to rehabilitation which are being made by the graduates of a rehabilitation nursing program

Thesis (M.S.)--Boston Universit

Designing the Machine Age in America: Streamlining in the 20th Century

Streamlining, the major U.S. commercial design style of the 1930s, was promoted by industrial designers who sought to eliminate sales resistance just as aerodynamic streamlining was intended to eliminate wind resistance. Popularized in 1934 by two passenger trains, the Union Pacific railroads M-10,000 and the Burlington railroads Zephyr, the style was introduced into the automotive market through the Chrysler Airflow and was quickly incorporated into non-vehicular consumer products. While 1930s streamlining expressed a cultural desire for stability and stasis during the Great Depression, the postwar variant, exemplified by the sharply angled, flaring automotive tailfin, expressed a popular faith in limitless technological progress. The architect Eero Saarinen, who had learned streamlining in the industrial design office of Norman Bel Geddes in the late 1930s, brought postwar streamlining to full expression in such projects as the TWA terminal in New York and Dulles airport in northern Virginia. During the 1990s a nostalgic retro mode of streamlining appeared in such products as the New Beetle automobile, the first Apple iMac computer, and the Smart car

Youve Been with the Professors: Influence, Appropriation, and the Cultural Interpretation of Bob Dylan

Sean Wilentz, Bob Dylan in America. New York: Doubleday, 2010. 390 pp., 99 b..w illus., index. Greil Marcus, Bob Dylan: Writings 1968-2010. New York: PublicAffairs, 2010. xx, 483 pp, 14 b&w illus., index.American Studies as a discipline, at least as practiced in the United States, has sometimes attracted criticism that it encourages narcissistic navel-gazing by a culture whose socioeconomic base is affluent enough to afford that luxury. This complaint is especially prevalent in attacks on scholars who direct their attention to popular examples of the products of mass culture. A former colleague of mine, or example, often aimed sarcastic barbs at people who write about their record collections. At the least, he believed, such unprofessional scholars are too lazy to look beyond narrow personal interests; at worst, they project their own guilty pleasures onto the larger culture in a solipsistic gesture motivated by self-justification. Although my colleagues opinion reflected a bitter, ultimately dismissive attitude toward recent scholarship on contemporary mass culture, there is indeed a gray area where celebrity worship, fanboy obsession, and personal desire to claim cultural capital may blur traditional notions of scholarships neutral objectivity. Attempts to overcome such attacks often seek to prove by applying audience or reception theory that popular culture products do have substantive impact on the lives of those who consume them. That defense may appear questionable not only because reception is notoriously difficult to measure but also because critical theorys densely-worded, jargon-laden arguments may seem like self-serving obfuscation to readers already inclined to be skeptical of serious claims for popular or mass culture

56Ni dredge-up in the type IIp Supernova 1995V

We present contemporary infrared and optical spectra of the plateau type II SN 1995V in NGC 1087 covering four epochs, approximately 22 to 84 days after shock breakout. The data show, for the first time, the infrared spectroscopic evolution during the plateau phase of a typical type II event. In the optical region P Cygni lines of the Balmer series and of metals lines were identified. The infrared (IR) spectra were largely dominated by the continuum, but P Cygni Paschen lines and Brackett gamma lines were also clearly seen. The other prominent IR features are confined to wavelengths blueward of 11000 \AA and include Sr II 10327, Fe II 10547, C I 10695 and He I 10830 \AA. We demonstrate the presence of He I 10830 \AA on days 69 and 85. The presence of this line at such late times implies re-ionisation. A likely re-ionising mechanism is gamma-ray deposition following the radioactive decay of 56Ni. We examine this mechanism by constructing a spectral model for the He I 10830 \AA line based on explosion model s15s7b2f of Weaver & Woosley (1993). We find that this does not generate the observed line owing to the confinement of the 56Ni to the central zones of the ejecta. In order to reproduce the He I line, it was necessary to introduce additional upward mixing of the 56Ni, with 10^{-5} of the total nickel mass reaching above the helium photosphere. In addition, we argue that the He I line-formation region is likely to have been in the form of pure helium clumps in the hydrogen envelope.Comment: Accepted for publication in MNRAS, 32 pages including 11 figures (uses psfig.sty - included

Quantifying Spectral Features of Type Ia Supernovae

We introduce a new technique to quantify highly structured spectra for which the definition of continua or spectral features in the observed flux spectra is difficult. The method employs wavelet transformation which allows the decomposition of the observed spectra into different scales. A procedure is formulated to define the strength of spectral features so that the measured spectral indices are independent of the flux levels and are insensitive to the definition of continuum and also to reddening. This technique is applied to Type Ia supernovae spectra, where correlations are revealed between the luminosity and spectral features. The current technique may allow for luminosity corrections based on spectral features in the use of Type Ia supernovae as cosmological probe.Comment: 35 pages, 15 figure

A Spitzer Space Telescope study of SN 2002hh: an infrared echo from a Type IIP supernova

We present late-time (590-994 d) mid-IR photometry of the normal, but highly-reddened Type IIP supernova SN 2002hh. Bright, cool, slowly-fading emission is detected from the direction of the supernova. Most of this flux appears not to be driven by the supernova event but instead probably originates in a cool, obscured star-formation region or molecular cloud along the line-of-sight. We also show, however, that the declining component of the flux is consistent with an SN-powered IR echo from a dusty progenitor CSM. Mid-IR emission could also be coming from newly-condensed dust and/or an ejecta/CSM impact but their contributions are likely to be small. For the case of a CSM-IR echo, we infer a dust mass of as little as 0.036 M(solar) with a corresponding CSM mass of 3.6(0.01/r(dg))M(solar) where r(dg) is the dust-to-gas mass ratio. Such a CSM would have resulted from episodic mass loss whose rate declined significantly about 28,000 years ago. Alternatively, an IR echo from a surrounding, dense, dusty molecular cloud might also have been responsible for the fading component. Either way, this is the first time that an IR echo has been clearly identified in a Type IIP supernova. We find no evidence for or against the proposal that Type IIP supernovae produce large amounts of dust via grain condensation in the ejecta. However, within the CSM-IR echo scenario, the mass of dust derived implies that the progenitors of the most common of core-collapse supernovae may make an important contribution to the universal dust content.Comment: 41 pages, 11 figures, 4 tables, accepted for publication in Astrophysical Journal (References corrected

Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs

The regulation of estrogen and progesterone receptor (ER, PR) expression by estradiol (E2) and progesterone (P4) in the oviduct, uterus and cervix of female lambs was studied. The animals received three intramuscular injections of E2, P4 or vehicle with an interval of 24 h and they were slaugthered 24 h after the third injection. Determinations of ER and PR were performed by binding assays and mRNAs of ERα and PR by solution hybridization. High levels of ER and PR in both cervix and oviduct were found in the female lamb, differing from other mammalian species. No significant effects by either E2 or P4 treatment on ER and PR levels in the cervix and oviduct could be observed. E2 treatment increased the mRNA levels of ERa and PR more than 3-fold in the cervix, while P4 treatment increased the mRNA levels of ERa and PR in the uterus. The results show differential effects of gonadal steroids on sex steroid receptor expression along the reproductive tract in female lambs, suggesting that steroid target tissues can modulate responses to the same circulating levels of steroid hormones

A Spitzer Space Telescope Study of SN 2003gd: Still No Direct Evidence that Core-Collapse Supernovae are Major Dust Factories

We present a new, detailed analysis of late-time mid-infrared (IR) observations of the Type II-P supernova (SN) 2003gd. At about 16 months after the explosion, the mid-IR flux is consistent with emission from 4 x 10^(-5) M(solar) of newly condensed dust in the ejecta. At 22 months emission from point-like sources close to the SN position was detected at 8 microns and 24 microns. By 42 months the 24 micron flux had faded. Considerations of luminosity and source size rule out the ejecta of SN 2003gd as the main origin of the emission at 22 months. A possible alternative explanation for the emission at this later epoch is an IR echo from pre-existing circumstellar or interstellar dust. We conclude that, contrary to the claim of Sugerman et al. (2006, Science, 313, 196), the mid-IR emission from SN 2003gd does not support the presence of 0.02 M(solar) of newly formed dust in the ejecta. There is, as yet, no direct evidence that core-collapse supernovae are major dust factories.Comment: 26 pages, 2 figures, 2 tables, accepted for publication in Astrophysical Journa

Annual Variation in Habitat Use by White-footed Mice, Peromyscus leucopus: The Effects of Forest Patch Size, Edge and Surrounding Vegetation Type

White-footed Mice (Peromyscus leucopus) were trapped for two years in the exterior matrix, edge, and interior forest habitat sections of six forests patches in a fragmented agricultural landscape. We used data on the capture locations of P. leucopus individuals from the two years, which differed in rainfall (i.e., summer of 2000 with 50% more rain than summer of 1999), to assess how patch size, edge habitat, and surrounding habitat type influence habitat use and movements in populations of this forest habitat generalist. We found that the proportion of individuals subsequently captured in the forest edge from the exterior was 16 times greater in the wet year than in the dry year and approximately twice as many P. leucopus were not subsequently recaptured from the exterior matrix in the dry year compared to the wet year. For each year, captures between habitats did not differ in relation to patch size, edge forest habitat, or exterior matrix type. These results illustrate the generalist habitat preferences of P. leucopus, but emphasize annual variation in their behavior and distribution

Is overconfidence a social liability? The effect of verbal versus nonverbal expressions of confidence.

[Correction Notice: An Erratum for this article was reported in Vol 116(3) of Journal of Personality and Social Psychology (see record 2019-08943-002). In the article "Is Overconfidence a Social Liability? The Effect of Verbal Versus Nonverbal Expressions of Confidence" by Elizabeth R. Tenney, Nathan L. Meikle, David Hunsaker, Don A. Moore, and Cameron Anderson (Journal of Personality and Social Psychology. Advance online publication. October 11, 2018. http://dx.doi.org/10.1037/pspi0000150), the Editor' Note acknowledging David Dunning as the action editor for this article was omitted. All versions of this article have been corrected.] What are the reputational consequences of being overconfident? We propose that the channel of confidence expression is one key moderator-that is, whether confidence is expressed verbally or nonverbally. In a series of experiments, participants assessed target individuals (potential collaborators or advisors) who were either overconfident or cautious. Targets expressed confidence, or a lack thereof, verbally or nonverbally. Participants then learned targets' actual performance. Across studies, overconfidence was advantageous initially-regardless of whether targets expressed confidence verbally or nonverbally. After performance was revealed, overconfident targets who had expressed confidence verbally were viewed more negatively than cautious targets; however, overconfident targets who had expressed confidence nonverbally were still viewed more positively than cautious ones. The one condition wherein nonverbal overconfidence was detrimental was when confidence was clearly tied to a falsifiable claim. Results suggest that, compared with verbal statements, nonverbal overconfidence reaps reputational benefits because of its plausible deniability. (PsycINFO Database Record (c) 2019 APA, all rights reserved)