Mass-energy balance for an S-1C rocket exhaust cloud during static firing

Rocket exhaust cloud mass-energy balance measurements for Saturn S1-C static firin

Globular Clusters in the Sombrero Galaxy (NGC 4594)

The Sombrero galaxy, NGC 4594, contains the most numerous globular cluster system of any nearby spiral. It is an ideal candidate in which to study the globular clusters and contrast them with those in Local Group spirals. Here we present B and I imaging from the CTIO Schmidt telescope which gives a field-of-view of 31' x 31'. Using DAOPHOT we have detected over 400 globular clusters and derived their magnitudes, B--I colors and photometric metallicities. We have attempted to separate our sample into disk and bulge/halo globular cluster populations, based on location in the galaxy. There is some evidence that the disk population is more metal--rich than the bulge/halo globular clusters, however contamination, dust reddening and small number statistics makes this result very tentative. We find that the median metallicity of the bulge/halo globular clusters is [Fe/H] = -0.8. This metallicity is consistent with previous estimates based on smaller samples. It is also similar to the metallicity predicted by the globular cluster metallicity -- galaxy luminosity relation. As with our Galaxy, there is no radial metallicity gradient in the halo globular clusters. This suggests that the spheriodal component of NGC 4594 did not form by a dissipational process.Comment: 7 pages, Latex. To be published in the Astronomical Journal. Full paper available at http://www.ucolick.org/~forbes/home.htm

The geometry and physical properties of exhaust clouds generated during the static firing of S-1C and S-2 rocket engines

An experimental program was conducted during the static firing of the S-1C stage 13, 14, and 15 rocket engines and the S-2 stage 13, 14, and 15 rocket engines. The data compiled during the experimental program consisted of photographic recordings of the time-dependent growth and diffusion of the exhaust clouds, the collection of meteorological data in the ambient atmosphere, and the acquisition of data on the physical structure of the exhaust clouds which were obtained by flying instrumented aircraft through the clouds. A new technique was developed to verify the previous measurements of evaporation and entrainment of blast deflector cooling water into the cloud. The results of the experimental program indicate that at the lower altitudes the rocket exhaust cloud or plume closely resembles a free-jet type of flow. At the upper altitudes, where the cloud is approaching an equilibrium condition, structure is very similar to a natural cumulus cloud

Mycotoxin production and DNA polymorphism of Alternaria species isolated from oilseed rape

Samples of rapeseed and meal were collected and examined microbiologically in order to determine the occurrence of mycotoxigenic moulds colonising oilseed rape in Great Britain. Up to 19 fungal genera were detected on samples at harvest and during storage; the predominant mould in seed was Alternaria alternata. Moulds identified on meal included Penicillium and A. alternata. When isolates of Alternaria spp were grown on rice, rapeseed and meal, five metabolites were detected — altenuene (ALT), altertoxin-I (ATX-I), alternariol (AOH), tenuazonic acid (TeA) and alternariol methyl ether (AME). These compounds were identified by their UV spectra and thin layer chromatography with standards. In order to quantify these compounds by high performance liquid chromatography, solvent optimisation techniques were adopted. Optimum separation on an octyl column occurred with an isocratic mobile phase consisting of 41.7% aqueous zinc sulphate solution (300mg/L), 30.3% methanol, 18.1% acetonitrile and 9.9% tetrahydrofuran. Production of mycotoxins was greater on rice than on rapeseed or meal. The most abundant metabolite produced on all substrates was TeA. Bioassay studies, including those with brine shrimp and cells isolated from rapeseed leaves, were employed to investigate the toxicity oi Alternaria mycotoxins; TeA was the most toxic of the five metabolites. Production of TeA by A. alternata was quantified on rapeseed and meal under a series of temperature and moisture conditions ranging between 10–30°C and 6.0–55.0% respectively. Higher temperature and moisture levels favoured TeA accumulation but under commercial storage conditions (i.e. ≤ 9% moisture), none was produced. A nitrogen-containing compound which was toxic to fungal spores was produced on rice by an isolate of A. alternata. that did not produce the typical Alternaria toxins. The compound was purified using solid phase and preparative TLC. Analysis of polymerase chain reaction products from genomic DNA of Alternaria spp. showed polymorphisms between morphological features and between toxigenic and non-toxigenic isolates of Alternaria spp

EXPLORATION OF FACTORS ASSOCIATED WITH PATIENT ADHERENCE IN UPPER EXTREMITY REHABILITATION: A MIXED-METHODS EMBEDDED DESIGN

Adherence is considered a prerequisite for the success of exercise programs for musculoskeletal disorders. The negative effects of non-adherence to exercise recommendations impact the cost of care, and also treatment effectiveness, treatment duration, the therapeutic relationship, waiting times, the efficiency of personnel and use of equipment. Adherence to therapeutic exercise intervention is a multifaceted problem.The World Health Organization (WHO) established the multidimensional adherence model (MAM). The MAM describes five interactive dimensions (socioeconomic. healthcare team and system, condition-related, therapy-related, and patient-related factors) that have an effect on patient adherence.The first purpose of this dissertation was to explore the MAM dimension of condition-related factors to determine the Quick Disabilities of the Arm Shoulder and Hand (QDASH) minimal clinical important difference (MCID) for three distal upper extremity conditions. The second purpose was to explore the MAM dimension of personal factors to learn from individuals who expressed incongruence between their QDASH and GROC scores; how they described their perceived change in therapy. The third purpose was to explore the MAM dimension of therapy-related factors to examine the effect of patient-therapist collaborative goal setting on patient adherence to treatment and QDASH outcomes.Results demonstrated in the first study that diagnosis specific MCID’s differed from the global MCID using multiple diagnoses. In the second study results demonstrated that patients expect to have a dedicated therapist who they can trust to work collaboratively with them to establish goals and spend time with them to achieve these goals. In the third study, our first hypothesis was not supported for all three measures of adherence. The median for home exercise program diary adherence was found to trend towards significance by 8.7 percent favoring the experimental group Mann-Whitney U (p\u3c .100). Our second hypothesis was not supported. The experimental group receiving collaborative goal setting intervention had similar QDASH mean change scores 45.9±27.6 compared to the control group 46.1±23.8, Mann-Whitney U (p\u3c .859)

EXPLORATION OF FACTORS ASSOCIATED WITH PATIENT ADHERENCE IN UPPER EXTREMITY REHABILITATION: A MIXED-METHODS EMBEDDED DESIGN

Adherence is considered a prerequisite for the success of exercise programs for musculoskeletal disorders. The negative effects of non-adherence to exercise recommendations impact the cost of care, and also treatment effectiveness, treatment duration, the therapeutic relationship, waiting times, the efficiency of personnel and use of equipment. Adherence to therapeutic exercise intervention is a multifaceted problem. The World Health Organization (WHO) established the multidimensional adherence model (MAM). The MAM describes five interactive dimensions (socioeconomic, healthcare team and system, condition-related, therapy-related, and patient-related factors) that have an effect on patient adherence. The first purpose of this dissertation was to explore the MAM dimension of condition-related factors to determine the Quick Disabilities of the Arm Shoulder and Hand (QDASH) minimal clinical important difference (MCID) for three distal upper extremity conditions. The second purpose was to explore the MAM dimension of personal factors to learn from individuals who expressed incongruence between their QDASH and GROC scores; how they described their perceived change in therapy. The third purpose was to explore the MAM dimension of therapy-related factors to examine the effect of patient-therapist collaborative goal setting on patient adherence to treatment and QDASH outcomes. Results demonstrated in the first study that diagnosis specific MCID’s differed from the global MCID using multiple diagnoses. In the second study results demonstrated that patients expect to have a dedicated therapist who they can trust to work collaboratively with them to establish goals and spend time with them to achieve these goals. In the third study, our first hypothesis was not supported for all three measures of adherence. The median for home exercise program diary adherence was found to trend towards significance by 8.7 percent favoring the experimental group Mann-Whitney U (p \u3c .100). Our second hypothesis was not supported. The experimental group receiving collaborative goal setting intervention had similar QDASH mean change scores 45.9±27.6 compared to the control group 46.1±23.8, Mann-Whitney U (p \u3c .859)

The Potential of Erin Brokovitch to Introduce Organizaitonal Behavior Topics

Real organizational behavior is rich, and messy, and emotional, and at times painful, but at other times immensely rewarding. The movie, Erin Brockovich, captures this richness and provides an exciting means to introduce a variety of individual or micro- organizational behavior concepts (such as perception, personality, and motivation) typically covered at the beginning of the Organizational Behavior course. In this paper, we describe the use of the film, including a takehome viewing assignment, an in-class assignment, a description of clips and comments for in-class use, and suggestions for the types of issues to discuss in relation to the major topics and in relation to other potentially relevant areas. The richness of this film and the issues raised also provide the potential for more critical analyses of management and organizational practices