The history of the growth and development of color television

Not available.Robert Francis CrawfordNot ListedNot ListedMaster of ScienceDepartment Not ListedCunningham Memorial Library, Terre Haute, Indiana State University.isua-thesis-1955-crawfordMastersTitle from document title page. Document formatted into pages: contains 86p. : ill. Includes bibliography

A Comparison of Tropical Storm (TS) and Non-TS Gust Factors for Assessing Peak Wind Probabilities at the Eastern Range

Peak wind speed is an important forecast element to ensure the safety of personnel and flight hardware at Kennedy Space Center (KSC) and the Cape Canaveral Air Force Station (CCAFS) in East-Central Florida. The 45th Weather Squadron (45 WS), the organization that issues forecasts for the KSC/CCAFS area, finds that peak winds are more difficult to forecast than mean winds. This difficulty motivated the 45 WS to request two independent studies. The first (Merceret 2009) was the development of a reliable model for gust factors (GF) relating the peak to the mean wind speed in tropical storms (TS). The second (Lambert et al. 2008) was a climatological study of non-TS cool season (October-April) mean and peak wind speeds by the Applied Meteorology Unit (AMU; Bauman et al. 2004) without the use of GF. Both studies presented their statistics as functions of mean wind speed and height. Most of the few comparisons of TS and non-TS GF in the literature suggest that non-TS GF at a given height and mean wind speed are smaller than the corresponding TS GF. The investigation reported here converted the non-TS peak wind statistics calculated by the AMU to the equivalent GF statistics and compared them with the previous TS GF results. The advantage of this effort over all previously reported studies of its kind is that the TS and non-TS data were taken from the same towers in the same locations. This eliminates differing surface attributes, including roughness length and thermal properties, as a major source of variance in the comparison. The goal of this study is two-fold: to determine the relationship between the non-TS and TS GF and their standard deviations (GFSD) and to determine if models similar to those developed for TS data in Merceret (2009) could be developed for the non-TS environment. The results are consistent with the literature, but include much more detailed, quantitative information on the nature of the relationship between TS and non-TS GF and GFSD as a function of height and mean wind speed

School sport and academic achievement

ABSTRACT BACKGROUND: Physical Education and School Sport (PESS) is an integral part of the school curriculum in Ireland. Historically the Healthy Body, Healthy Mind philosophy has promoted the inclusion of PESS alongside more cognitive school subjects and research suggests that PESS can promote cognitive function and provide educational benefits. However there is little research on how the choice of school sport influences academic achievement. This case study aims to investigate how participation in school sport influences the Leaving Certificate points score in an Irish secondary school. In particular, the study will investigate how the particular sport chosen by students participating in school sport during their Leaving Certificate years influences their Leaving Certificate results. METHODS: The study recorded the Leaving Certificate scores and sporting participation from 402 school children graduating from an all-boys secondary school in the Republic of Ireland during the period 2008-2011. Sports participation was assigned one of four categories: Rugby; Rowing; Soccer; No Sport. RESULTS: Participation in a sport during the Leaving Certificate years conferred a 25.4 point benefit to the final Leaving Certificate score. However, participation in Rowing, the only individual sport available in the study, resulted in significantly higher Leaving Certificate scores than Rugby, Soccer and No Sport (p < .05), conferring an additional 73.4 point benefit over the next highest group, Rugby. CONCLUSION: Promoting participation in school sport and providing access to a range of team and individual sports throughout the secondary school years may be a beneficial way to improve students Leaving Certificate results

Slotted Rotatable Target Assembley and Systematic Error Analysis for a Search for Long Range Spin Dependent Interactions from Exotic Vector Boson Exchange Using Neutron Spin Rotation

We discuss the design and construction of a novel target array of nonmagnetic test masses used in a neutron polarimetry measurement made in search for new possible exotic spin dependent neutron–atominteractions of Nature at sub-mm length scales. This target was designed to accept and efficiently transmit a transversely polarized slow neutron beam through a series of long open parallel slots bounded by flat rectangular plates. These openings possessed equal atom density gradients normal to the slots from the flat test masses with dimensions optimized to achieve maximum sensitivity to an exotic spin-dependent interaction from vector boson exchanges with ranges in the mm - μm regime. The parallel slots were oriented differently in four quadrants that can be rotated about the neutron beam axis in discrete 90°increments using a Geneva drive. The spin rotation signals from the 4 quadrants were measured using a segmented neutron ion chamber to suppress possible systematic errors from stray magnetic fields in the target region. We discuss the per-neutron sensitivity of the target to the exotic interaction, the design constraints, the potential sources of systematic errors which could be present in this design, and our estimate of the achievable sensitivity using this method

997-90 Right (RV) and Left Ventricular (LV) Geometry and Myocyte Contractile Processes with Dilated Cardiomyopathy (DCM): Disparity Between Myocyte Growth and β-Adrenergic Responsiveness

The progression of DCM has been assumed to be a homogenous process for both the RV and LV. However, this assumption has never been tested. Accordingly, we measured myocyte contractile performance (velocity of shortening, VELSHORT; percent shortening, PERSHORT) at baseline (BASE) and after β-adrenergic receptor stimulation (βAR, 25 nM isoproterenol) of isolated myocytes taken from the RV and LV of 5 pigs with pacing induced DCM (240 bpm, 3 weeks) and 5 control pigs (CON). RV and LV mass/body weight (MASS) and myocyte length and cross-sectional area (CSA) were also determined.CON-RVCON-LVDCM-RVDCM-LVVELSHORT-BASE (μm/s)90±5+50±148±2*,+32±1*VELSHORT-βAR (μm/s)206±8+150±5123±8*111±9*PERSHORT-BASE (%)5.8±0.2+4.6±0.13.1±0.1*,+2.2±0.1*PERSHORT-βAR (%)11.5±0.3+10.2±0.359±0.3*5.2±0.4*Length (μm)150±2+137±1179±2*,+173±2*CSA (μm2)176±4+362±8232±4*,+292±5*Mass (gm/kg)0.8±0.1+2.8±0.11.6±0.1*,+2.9±0.2+p&lt;0.05 vs LV*p&lt;005 vS CONIn controls, RV myocytes were longer and had a smaller CSA, but enhanced contractile performance at baseline and with β-adrenergic stimulation. With DCM, no LV hypertrophy occurred. In contrast, RV chamber and cellular hypertrophy occurred and was associated with a persistent increase of RV myocyte baseline contractile function.SummaryThis study demonstrated, for the first time, that differences in RV and LV myocyte function and β-adrenergic responsiveness exist in normal and DCM states. More importantly, a disparity in RV and LV myocyte growth with DCM occurred. Thus, in this model of DCM, RV and LV growth and changes in contractile performance are not a homogenous process, and suggest that inherent differences exist in the response of RV and LV myocytes to stress

Developmental differences in myocyte contractile response after cardioplegic arrest

AbstractAlthough developmental differences in left ventricular function after cardioplegic arrest and rewarming have been postulated, whether differences exist at the level of the myocyte remains unexplored. This project tested the hypothesis that there is a differential effect of hypothermic hyperkalemic cardioplegic arrest with subsequent rewarming on contractile function of immature compared with adult ventricular myocytes. Myocytes were isolated from the left ventricular free wall of five immature and five adult rabbits and incubated for 2 hours in hyperkalemic modified Ringer's solution at 4° C (cardioplegia) or for 2 hours in cell culture medium at 37° C (normothermia). Myocytes were resuspended (“rewarmed”) in 37° C cell culture medium after the incubation protocol. Normothermic baseline contractile performance was lower in immature, compared with adult, myocytes. Specifically, myocyte shortening velocity was 62 ± 4 μm/sec in immature and 112 ± 6 μm/sec in adult myocytes (p < 0.01). After cardioplegia and rewarming, immature myocyte contractile function was unchanged, whereas adult myocyte contractile function was significantly diminished. For example, myocyte shortening velocity was 65 ± 4 μm/sec in immature and 58 ± 3 μm/sec in adult myocytes (p < 0.01 versus normothermic). Myocyte surface area, which reflects myocyte volume, was increased after cardioplegia and rewarming in adults (3582 ± 55 versus 3316 ± 46 μm2, p < 0.01), but remained unchanged in immature myocytes (2212 ± 27 versus 2285 ± 28 μm2, p = not significant). These unique findings demonstrate a preservation of myocyte contractile function and volume regulation in immature myocytes after cardioplegic arrest and rewarming. Thus this study directly demonstrates that developmental differences exist in myocyte responses to hypothermic hyperkalemic cardioplegic arrest with subsequent rewarming. (J THORAC CARDIOVASC SURG 1996;111:1257-66

The design of compassionate care

Aims and objectives To investigate the tension between individual and organisational responses to contemporary demands for compassionate interactions in health care. Background Health care is often said to need more compassion among its practitioners. However, this represents a rather simplistic view of the issue, situating the problem with individual practitioners rather than focusing on the overall design of care and healthcare organisations, which have often adopted a production-line approach. Design This is a position paper informed by a narrative literature review. Methods A search of the PubMed, Science Direct and CINAHL databases for the terms compassion, care and design was conducted in the research literature published from 2000 through to mid-2013. Results There is a relatively large literature on compassion in health care, where authors discuss the value of imbuing a variety of aspects of health services with compassion including nurses, other practitioners and, ultimately, among patients. This contrasts with the rather limited attention that compassionate practice has received in healthcare curricula and the lack of attention to how compassion is informed by organisational structures and processes. We discuss how making the clinic more welcoming for patients and promoting bidirectional compassion and compassion formation in nursing education can be part of an overall approach to the design of compassionate care. Conclusions We discuss a number of ways in which compassion can be enhanced through training, educational and organisational design, through exploiting the potential of brief opportunities for communication and through initiatives involving patients and service users, as well as practitioners and service leaders. Relevance to clinical practice The development of contemporary healthcare systems could usefully address the overall design of compassionate care rather than blame individual practitioners for a lack of compassion

Aquilegia, Vol. 20 No. 2, April-June 1996: Newsletter of the Colorado Native Plant Society

https://epublications.regis.edu/aquilegia/1079/thumbnail.jp

Aquilegia, Vol. 19 No. 1, January-March 1995: Newsletter of the Colorado Native Plant Society

https://epublications.regis.edu/aquilegia/1074/thumbnail.jp