Analysis and design of transonic airfoils using streamwise coordinates

A new approach is developed for analysis and design of transonic airfoils. A set of full potential equivalent equations in von Mises coordinates is formulated from the Euler equations under the irrotationality and isentropic assumptions. This set is composed of a main equation for the main variable, y, and a secondary equations for the secondary variable, R. The main equation is solved by type dependent differencing combined with a shock point operator. The secondary equation is solved by marching from a non-characteristic boundary. Sample computations on NACA 0012 and biconvex airfoils show that, for the analysis problem, the present approach achieves good agreement with experimental C sub p distributions. For the design problem, the approach leads to a simple numerical algorithm in which the airfoil contour is calculated as part of the flow field solution

Adult Attachment and Emotion Identification: A Cognitive Evaluation

Whether adult or infant, attachment bonds aid in the development of beliefs about oneself and others (Collins & Read, 1990; Hazen & Shaver, 1987). Additionally, attachment seems to play a vital role in human development, communication, emotion recognition and comprehension, and the development of appropriate mental representations of emotional experiences (Denham et al., 2002; Greg & Howe, 2001; Raikes & Thompson, 2006). Because attachment is considered a somewhat stable trait, it seems logical that the importance of emotional experiences would not be limited to childhood, and would be important in establishing and maintaining healthy adult relationships (Kerr, Melley, Travea, & Pole, 2003). This study sought to expand upon current attachment literature by further examining the relationship between attachment and identification of emotional stimuli. Participants rapidly responded to a series of computer images of picture/emotion word pairings followed by a series of questionnaires, including: The Adult Attachment Questionnaire (AAQ; Hazan & Shaver, 1987/1990) and The Experiences in Close Relationships - Revised (ECR-R; Brennan, Clark, & Shaver, 1998; Fraley, Waller, & Brennan, 2000), Attachment styles were examined to identify the relationship between differing styles and ability to quickly and accurately identify emotion-related stimuli. Contrary to hypotheses, results reveal no main effect of attachment, however do demonstrate significance of the negative picture/word pairing. Mikulincer and Shaver’s (2003) integrative model of attachment-related strategies provides a possible explanation for these findings. More information is necessary to determine the role of adult attachment and emotion identification

Conodont biostratigraphy of the Crawford Group, Southern Uplands, Scotland

Extensive new conodont collections from the Crawford Group, the oldest succession in the Southern Uplands of Scotland, support the previously documented biostratigraphical ages for the included formations. The Raven Gill Formation is lower Whitlandian, Arenig (comparable in age to the Dounans Limestone in the Highland Border Complex) and the Kirkton Formation is latest Llandeilian-Aurelucian, Llanvirn to Caradoc in age. It is concluded that there is a significant stratigraphical gap within the Crawford Group. The restricted and probably fault-bounded nature of the Raven Gill outcrops suggests that these may represent olistoliths within a mélange of Llandeilian-Aurelucian age. The chert-bearing succession of the Northern Belt of the Southern Uplands thus represents the juxtaposed sedimentary records of two entirely separate basins – the oldest pre-dates the Grampian assembly of the Laurentian margin, and the younger, the Northern Belt Basin sensu stricto, entirely post-dates this event

The neurogenic aspects of the aetiology of gastric and duodenal ulceration

In this thesis I have put forward the plea that tha cause of the distressing conditions of irritable "peptic" ulcer and the gastric neuroses is a neurogenic one. At times I have been lead away from the main track of my argument into discussions of the general aetiology and clinical and pathological findings of related conditions; but that was inevitable in such a debatable and complicated subject. It is not possible yet to come to a definite conclusion, but in my own mind at least, I am convinced that understanding is clearer, and the meaning of certain findings more obvious in the light of the neurogenic theory, than in that of any other. Much work and study must yet be given to the whole subject before the theory is finally either discarded or finds a general acceptance.However, I have summarised my main deductions and conclusions from a study of the literature and from my own personal observations, both clinical and experimentaL. hone the less, it must be understood that the neurogenic approach to the subject of peptic ulceration is still a comparatively new one and the considerationof the results of future experiments may well cause modification of some of the conclusions hereinunder put forth.1. The human stomach gains its nerve supply from two sources, the vagus (parasympathetic) and the sympathetic (through the coeliac plexus).2. The gastric vagal branches are very constant in position and di6tribution and the main branches can be identified at operations on the stomach.3. Relative overaction of the vagus produces hypersecretion, hypermotility, hyperacidity and pylorospt.sm.4. The main factor in the causation of "peptic" ulceration and the gastric neuroses is the combination of Relative vagal Overact ion and Eyperchlorhydria.5. Relative Vagal Overaction in the human being may be either constitutional (inherited) or acquired.6. Hyperchlorhydria is principally and in most cases the direct result of vagal stimulation. he usual level of gastric acid may be raised to an extent by the absence of the diluting and neutralizing factors in the diet, and /or derangement of the internal chemical mechanism for the maintenance of normal gastric acidity.7. A reasonable new assay of the treatment of !duodenal ulcer without stenosis in a young person, and of the gastric neuroses, would bea. by exhibition of the newer drugs of the belladonna series - ephedrine, or especialLy Benzedrine, which produce a relative diminution of parasympathetic activity;b. by exhibition of sedatives, especially pheno- barbitone and the bromides, which reduce auto- nomic activity as a whole;c. by vagal neurectomy, by resecting a small length of anterior gastric nerve, and of the posterior gastric nerve after it has given off its large right branch (which goes to supply the small intestine). The approach is through a high paramedial incision into the left xiphi -costal angle and exposure can easily be obtained as described by Latarjet (page 79, Figs. 2, 11, 4.2).The operation is feasible, and quite quickly performed; it does not entail the shock and consider- able anaesthetic duration of the usual abdominal operation where much handling of the gut takes place; it is not mutilating as t the partial gastrectomy often advised; and should the operation fail to pro- duce the expected results, the application of the routine medical treatment is not precluded, neither is the performance of gastroenterostomy or partial gastrectomy should such a major surgical procedure by any chance be deemed advisable

Let Me In, Dat\u27s All

https://digitalcommons.library.umaine.edu/mmb-vp/4268/thumbnail.jp

There\u27s No Place Like Home

https://digitalcommons.library.umaine.edu/mmb-vp/6512/thumbnail.jp

The Perceptions of Emergency Vehicle Drivers Using Simulation in Driver Training

The number of accidents over the past decade involving emergencyvehicles is a major concern for emergency service providers. This study assessedthe perception of adding a driving simulator to a traditional training program. Thesample population consisted of Emergency Medical Technician students attendingthe National EMS Academy in Lafayette, LA. The group self-scheduled whichday they would attend the driving portion of the class. This resulted in 52participants in the control group and 50 participants in the treatment group. Thetreatment group used a driving simulator prior to driving on the competencycourse.Surveys were used to assess the emergency vehicle operators’ perceptions ofusing a driving simulator as part of an emergency vehicle training course. Thesimulator allowed the treatment group to understand the course prior to actuallydriving the course. The control group thought the simulator would have affordedthem the opportunity to learn the course before actually driving the course. Bothgroups thought the simulator should be a part of the driver training course, but didnot see the simulator replacing actual driving experience. Emergency MedicalTechnician students in both the treatment and control group thought the simulatorwould improve their driving ability