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51.
J. Kevin Barge Michael Lee Kristy Maddux Richard Nabring Bryan Townsend 《Journal of Applied Communication Research》2013,41(4):364-390
Dualities play an important role in creating the conditions for change and managing planned change initiatives. Building on Seo, Putnam, and Bartunek's (2003) work, this study focuses on the dualities associated with managing change processes. A case study of a planned change process called the Circle of Prosperity Initiative, a multi-stakeholder dialogue designed to bring information technology to Indian country, was analyzed. Three dualities emerged regarding the structuring and management of the change initiative: (1) inclusion–exclusion, (2) preservation–change, and (3) centrality–parity. The findings suggested that these dualities were managed using Seo et al.'s (2003) strategy of connection. Notably, the strategy of connection relied heavily on the ability of change agents to set context within and between the different phases of the initiative and involved three specific practices for setting context setting: (1) commonplacing, (2) bounded mutuality, and (3) reflexive positioning. 相似文献
52.
Howard W. Townsend 《Quarterly Journal of Speech》2013,99(4):579-585
Andrew Johnson. By Lloyd Paul Stryker. New York: The Macmillan Company, 1929: pp. 881. Better Speech. By Charles Henry Woolbert and Andrew Thomas Weaver. New York: Harcourt, Brace and Co., Revised and Enlarged Edition, 1929: pp. v, 463; $1.52. Speaking in Public. By Arleigh B. Williamson. New York: Prentice‐Hall, 1929: pp. xvi, 412. Our Inheritance, Speeches and Addresses. By The Right Honorable Stanley Baldwin. Garden City, New York: Boubleday, Doran: 1928, pp. 349. Modern Dramatic Structure. By Dorothy Juanita Kaucher, Ph. D., The University of Missouri Studies, Volume III, No. 4, October 1928. Beneath the Crust of Words. By Louis Foley. Columbus: The Ohio State University Press, 1928: pp. v, 158. John Wesley: A Portrait. By Abram Lipsky. New York: Simon and Shuster, 1928, pp. 305. The Lord's Horseman. By Umphrey Lee. New York: Century Co., 1928, pp. 358. The Oral Study of Literature. By Algernon Tassin. New York: Knopf, 1929: pp. 483. The Public International Conference. By Norman L. Hill. Stanford University Press, 1929: pp. 267. 相似文献
53.
Barbara K. Townsend 《Community College Journal of Research & Practice》2013,37(10):813-826
This paper explores the issues of what would constitute a positive organizational climate for women and minorities within the community college setting and ways in which such a climate might be achieved. It first describes some traditional or standard measures of a positive organizational climate for women and minorities and then evaluates how well the community college is doing when examined against these measures. Next, it describes some structural manifestations of a negative climate, including negative discourse about minorities and women. In doing so, it traces the development of some discourse patterns about these groups and provides some illustrative cultural assumptions that reflect these discourse patterns. The paper concludes with implications for the community college, including some steps to be taken to improve the organizational climate for minorities and women. 相似文献
54.
Carugo D Ankrett DN Glynne-Jones P Capretto L Boltryk RJ Zhang X Townsend PA Hill M 《Biomicrofluidics》2011,5(4):44108-4410815
Sonoporation is a useful biophysical mechanism for facilitating the transmembrane delivery of therapeutic agents from the extracellular to the intracellular milieu. Conventionally, sonoporation is carried out in the presence of ultrasound contrast agents, which are known to greatly enhance transient poration of biological cell membranes. However, in vivo contrast agents have been observed to induce capillary rupture and haemorrhage due to endothelial cell damage and to greatly increase the potential for cell lysis in vitro. Here, we demonstrate sonoporation of cardiac myoblasts in the absence of contrast agent (CA-free sonoporation) using a low-cost ultrasound-microfluidic device. Within this device an ultrasonic standing wave was generated, allowing control over the position of the cells and the strength of the acoustic radiation forces. Real-time single-cell analysis and retrospective post-sonication analysis of insonated cardiac myoblasts showed that CA-free sonoporation induced transmembrane transfer of fluorescent probes (CMFDA and FITC-dextran) and that different mechanisms potentially contribute to membrane poration in the presence of an ultrasonic wave. Additionally, to the best of our knowledge, we have shown for the first time that sonoporation induces increased cell cytotoxicity as a consequence of CA-free ultrasound-facilitated uptake of pharmaceutical agents (doxorubicin, luteolin, and apigenin). The US-microfluidic device designed here provides an in vitro alternative to expensive and controversial in vivo models used for early stage drug discovery, and drug delivery programs and toxicity measurements. 相似文献
55.
Nathan E. Townsend Christopher J. Gore Tammie R. Ebert David T. Martin Allan G. Hahn Chin-Moi Chow 《European Journal of Sport Science》2016,16(8):895-902
Aim: The aim of this study was to examine the relationship between ventilatory adaptation and performance during altitude training at 2700?m. Methods: Seven elite cyclists (age: 21.2?±?1.1?yr, body mass: 69.9?±?5.6?kg, height 176.3?±?4.9?cm) participated in this study. A hypoxic ventilatory response (HVR) test and a submaximal exercise test were performed at sea level prior to the training camp and again after 15 d at altitude (ALT15). Ventilation (VE), end-tidal carbon-dioxide partial pressure (PETCO2) and oxyhaemoglobin saturation via pulse oximetry (SpO2) were measured at rest and during submaximal cycling at 250?W. A hill climb (HC) performance test was conducted at sea level and after 14 d at altitude (ALT14) using a road of similar length (5.5–6?km) and gradient (4.8–5.3%). Power output was measured using SRM cranks. Average HC power at ALT14 was normalised to sea level power (HC%). Multiple regression was used to identify significant predictors of performance at altitude. Results: At ALT15, there was a significant increase in resting VE (10.3?±?1.9 vs. 12.2?±?2.4?L·min?1) and HVR (0.34?±?0.24 vs. 0.71?±?0.49?L·min?1·%?1), while PETCO2 (38.4?±?2.3 vs. 32.1?±?3.3?mmHg) and SpO2 (97.9?±?0.7 vs. 94.0?±?1.7%) were reduced (P?.05). Multiple regression revealed ΔHVR and exercise VE at altitude as significant predictors of HC% (adjusted r2?=?0.913; P?=?0.003). Conclusions: Ventilatory acclimatisation occurred during a 2 wk altitude training camp in elite cyclists and a higher HVR was associated with better performance at altitude, relative to sea level. These results suggest that ventilatory acclimatisation is beneficial for cycling performance at altitude. 相似文献
56.
AbstractThe topic of work–life balance (WLB) has gotten a lot of attention in popular literature, but there has been little library scholarship on the issue. This exploratory study presents the perceptions of 329 academic librarians on what they believe an ideal WLB looks like, and how it impacts their personal and professional responsibilities. The authors asked about strategies for a successful WLB, about overall job satisfaction, coping strategies, and more. The study is intended to prompt discussions of the topic, and lead to an exploration of how to continue to grow and support a strong workforce. 相似文献
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59.
When Muhammad Ali died in June 2016, he was remembered by the media as a hero in the fight for racial equality. Tributes for the great boxer were meaningful in many respects, but they were also incomplete, sanitised and misleading. This paper aims to re-complicate our understanding of Ali's portrayals in the media by analysing newspaper discourse in the years immediately following his conversation to the Nation of Islam. Specifically, this investigation compares and contrasts the complex ways that black and white journalists used both his birth name (Cassius Clay) and his adopted name (Muhammad Ali) as a way of signalling their attitudes toward him. Close reading of newspaper articles published between March 1964 and September 1967 reveals that black journalists rejected Ali's adopted name and identity almost as comprehensively as their white colleagues. This aspect of Ali's legacy has been largely forgotten by the contemporary media, which calls us to consider the cultural construction of social memory, particularly when it revolves around sporting icons. 相似文献
60.
A number of well-regarded multivariable nonlinear programming algorithms employ univariate searches to enhance progress toward an optimum. One of the preferred univariate searches has been Coggins' quadratic approximation-interpolation algorithm.* In this paper, conditions are derived for which Coggins' algorithm may terminate at very poor estimates of the optimum. Simple but representative numerical examples affirm these results for a preferred coding. Interestingly, this algorithm nevertheless performs extremely well on a wide range of test problems. Similar conditions can be derived for higher order approximations, although this does not appear warranted based on the present knowledge. 相似文献