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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

An exploration of children's experiences of national assessment in schools : how do national assessments influence children's identities?

Price, Julie Elizabeth January 2017 (has links)
The impact of test anxiety on children’s wellbeing is of increasing concern to educationalists (National Union of Teachers/Exam Factories, 2015). In addition, the impact of SATs on children’s well-being is currently at the heart of much media interest (refer to articles in The Guardian 30.4.17 and The Independent 1.5.17). Despite a growing research base, the focus has been largely on the experiences of secondary or college students, and has primarily been investigated using quantitative approaches. The aim of the current study was to develop an understanding of the emotional impact of national assessment on primary aged children, and to explore how the construction of children’s identities might relate to these experiences. Initially twelve children from two schools were identified with Special Educational Needs Coordinators (SENCOs) on the basis of them representing a range of social backgrounds, and emotional and cognitive abilities. A total of eleven children were interviewed twice. The data from five children from year six and a child from year two were then further analysed using Interpretative Phenomenological Analysis. Four superordinate themes emerged from analysis, each with a number of subordinate themes. The theme ‘Support from others’ illustrates the way in which the children’s learning was situated within a social context, from which testing created a rupture, as described in the theme ‘Tests create anxiety’. Children described a tendency to keep negative feelings about testing to themselves, creating a split between the private and the public self. Performance in tests informed children’s sense of value, beyond the confines of the target ability (‘Self-evaluation from feedback’). The theme ‘Who I want to become’ captures a process of negotiation as children became immersed in reflection on their identities, negotiating a compromise between self-evaluation on the basis of the tests and possible future selves. Due to the research method and size of this study, implications from the results have to be treated cautiously. However, it would seem advantageous for schools to address the potential negative effects of testing on emotional well-being, identity and aspiration. Suggested ways of achieving this are increased opportunities for children to express their private anxieties with regard to testing, including discussion with adults in non- teaching roles, and specific interventions that promote well-being and self-esteem in relation to test anxiety and the implications of results. In addition, policy and practice should consider ways to minimise the rupture to learning created by testing.
2

An Introduction to Invariant Theory / En introduktion till invariantteori

Daniel, Alberto January 2017 (has links)
This work is an attempt to explain in some detail section III D of the paper: N.J.A. Sloane. "Error-correcting codes and Invariant Theory: New application of a Nineteenth-Century Technique". For that, we will be concerned with polynomial invariants of  finite groups which come from a group action. We will introduce the basic notions of Invariant Theory to give an almost self-contained proof of Molien's theorem, and also present applications on linear codes.
3

A Modeling and Simulation Approach to the Small Aircraft Transportation System: Assessing Midair Conflict Potential Under the Free Flight Paradigm

Farrell, Christopher Michael 20 March 2007 (has links)
The Small Aircraft Transportation System, or SATS, is a NASA-led initiative that seeks to revolutionize commercial air travel by increasing accessibility and mobility for the general consumer. The hallmark of SATS is on-demand, point-to-point air transportation from one of the nation's 5,400 public use airports and landing facilities. A second-order benefit is that it may help relieve congestion on the nation's highways and at our mid- to large size airport hubs. In 1999, NASA initiated a five-year, $69 million research program to study the feasibility and viability of SATS including development of the emerging technologies necessary to make SATS a reality. The five-year plan culminated in June 2005 in Danville, VA with a highly publicized flight demonstration and exposition serving as the SATS proof of concept. The "Highways-in-the-Sky" (HITS) premise inherent to SATS is arguably its biggest enabler, and it depends heavily on the idea of free flight. HITS will potentially be the first step in moving from traditional cars and other vehicles that travel on the ground to ones that will operate largely, if not entirely, in the air. The notion of "cars" that fly was first introduced by the entertainment industry in movies and television programs decades ago. But if mankind is ever to achieve that vision, we must have a start point. This research focuses not on the economic viability of SATS but rather on the degree of flight safety inherent to a program such as this. One can easily see how the introduction of a large number of autonomous vehicles operating simultaneously in an already dense region such as the National Airspace System might carry some degree of risk. This research introduces a modeling and simulation framework that will have applications to SATS at such time as the program must be evaluated from a safety of flight perspective. That will invariably include a high degree of simulation. This work also represents the first large-scale simulation focused primarily on how SATS will perform in the out-years. / Master of Science
4

Air Surveillance for Smart Landing Facilities in the Small Aircraft Transportation System

Shea, Eric Joseph 25 April 2002 (has links)
The Small Aircraft Transportation System (SATS) is a partnership among various organizations including NASA, the FAA, US aviation industry, state and local aviation officials, and universities. The program objectives are intend to reduce travel times by providing high-speed, safe travel alternatives by making use of small aircraft and underused small airports throughout the nation. A major component of the SATS program is the Smart Landing Facility (SLF). The SLF is a small airport that has been upgraded to handle SATS traffic. One of the services needed at SLFs is air surveillance of the airspace surrounding it. This thesis researches the different surveillance techniques available for use at the SLFs. The main focuses of this paper are an evaluation of the Traffic Alert and Collision Avoidance System (TCAS) when used as a ground sensor at SLFs and the design of a Position and Identification Reporting Beacon (PIRB). The use of the TCAS ground sensor is modeled in Matlab and the results of that model are discussed. The PIRB is a new system that can be used in conjunction with the Automatic Dependent Surveillance-Broadcast (ADS-B) system or independently to provide position information for all aircraft using GPS based positioning. / Master of Science
5

The Effect of Icing on the Dispatch Reliability of Small Aircraft

Gates, Melinda M. 08 December 2004 (has links)
In 2000, the National Aeronautics and Space Administration (NASA) initiated a program to promote the use of small aircraft as an additional option for national public transportation. The Small Aircraft Transportation System (SATS) asserted the idea of everyday individuals piloting themselves on trips, within a specified distance range, using a small (4 person), piston powered, un-pressurized aircraft and small airports in close proximity to their origin and destination. This thesis investigates how one weather phenomenon, in-flight icing, affects the dispatch reliability of this transportation system. Specifically, this research presumes that a route is considered a "no-go" for low time pilots in a small, piston powered aircraft if any icing conditions are forecast along the route at the altitude of the flight during the time the traveler desires to make the trip. This thesis evaluates direct flights between Cleveland and Boston; Boston and Washington, D.C.; and Washington, D.C. and Cleveland during the months of November through May for the years 2001 to 2003 at maximum cruising altitudes of 6,000 feet, 8,000 feet, 10,000 feet, and 12,000 feet above mean sea level (MSL). It was found that the overall probability of a "no-go" for all three flight paths at the normal cruising altitude of 12,000 feet is 56.8%. When the cruising altitude is reduced to 10,000 feet, 8,000 feet, and 6,000 feet the probability of a "no-go" for all three flight paths reduces to 54.6%, 48.5%, and 43.7% respectively. / Master of Science
6

Design som strategisk resurs : En studie om designs betydelse för en varumärkesidentitet

Bylund, Isabell, Wadström, Johanna January 2015 (has links)
Design har gått från att beröra produktestetik till att idag innefatta ett tillvägagångsätt samt en resurs vid strategisk affärsstyrning. Beroende på företags erfarenhet och kunskapsnivå betraktas och nyttjas design på olika nivåer i en verksamhet. Sedan 1960-talet har design management kommit att få en erkänd roll inom näringslivet. Däremot existerar fortfarande en spänning mellan design och marknadsföring, som kan försvåra företags vilja att investera i design management. Studiens syfte är att öka förståelsen för hur design management kan fungera som strategisk resurs, genom att uppmärksamma och undersöka vad design har för betydelse i en varumärkesidentitet. Den frågeställning som studien önskar utreda lyder; Vad har design för betydelse för en varumärkesidentitet? Uppsatsförfattarna har utifrån ett hermeneutiskt synsätt genomfört en kvalitativ studie, där en fallstudie motiverats genom triangulering. Betydelsen av design för en varumärkesidentitet har utforskats genom ett studieobjekt; varumärket SATS. Teori och insamling av empiri ha varvats genom ett abduktivt tillvägagångssätt, där intervjuer har genomförts utifrån tre perspektiv; expert-perspektivet, varumärkesperspektivet och varumärkesidentitetsbärarperspektivet. Studiens teoretiska referensram består av identitetsteori och designteori. Teori och empiri har tillsammans med etablerade resonemang inom design management kopplats samman, där Aakers modell, Brand Identity Planning System, har valts ut som central. I en avslutande diskussion binds studien ihop, där uppsatsförfattarna väljer att definiera strategisk design för att kunna belysa studiens slutsats. Studien slutsats är att designs betydelse för en varumärkesidentitet är skapandet av dess helhet och konsekvens genom användarcentrering, tvärdisciplinärt samarbete samt innovativ problemlösning. Design möjliggör för en varumärkesidentitet att förmedla känslomässigt, funktionellt och identifierande värde. / Design that originally only affected products' aesthetics is today known as a key success factor in competitive strategic business management. As a result of the lack of awareness for strategic design capabilities, a broader knowledge for the importance of design management investments is required. The purpose of this essay is therefore to enlighten the potentiality of design management and exploit how design can contribute to the brand identity. The ambition is to be able to answer the question; what significant importance has design to enhance brand identity? From a hermeneutic approach a qualitative method motivated triangulation and abduction. The brand SATS was selected as an investigation objective. The theoretical framework consists of theories of brand identity and strategic design. The main theory is called The Brand Identity Planning System and is in combination with the strategic design theories analysed and presented as the base for the discussion. In conclusion, the authors established a definition for design and found that design has the power to improve the brand identity through a user-oriented perspective, using an interdisciplinary and innovative problem-solving approach. Design can create a consistent brand identity, which along with identification adds superior emotional and functional value.
7

Från det imaginära till normala familjer : Analytiska konvergenser

Widman, Linnea January 2010 (has links)
I komplex analys finns det ett antal olika konvergenser varav vi tittar närmare på några här. Bland annat hur likformig konvergens medför punktvis konvergens men att det omvända ej gäller. Vi tittar också på vad de har för samband med lokal likformig konvergens och normal konvergens dvs. likformig konvergens på kompakta delmängder. Slutligen kommer vi att se på vad som gäller för familjer och kommer då in på lokalt begränsad, ekvikontinuitet, Arzela/Ascoli, Montels och Runges satser. Vi kommer här även se exempel på hur stort fel det egentligen kan bli för punktvisa konvergenta följder. De får normalt inte en gränsfunktion som är analytisk men vi ser både i Exempel 3.19 och Korollarium 3.23 att dessa ger resultat som är analytiska nästan överallt. / This report will describe four different types of convergence. The types described are pointwise, local uniformly, uniformly and normal convergence. The different convergences are explored in a way of how they relate to each other. Finally this report will also investigate how this applies to normal families and the theories of Arzela/Ascoli, Montel and Runge. We will here see examples of how wrong it really can go for pointwise convergent sequences. They do usually not have a limit that is analytic but from both Example 3.19 and Corollary 3.23 we will see that they give functions that in fact are analytic almost everywhere.
8

From the Axiom of Choice to Tychono ’s Theorem

Hörngren, Gustav January 2015 (has links)
A topological space X, is shown to be compact if and only if every net in X has a cluster point. If s is a net in a product Q 2A X, where each Xis a compact topological space, then, for every subset B of A, such that the restriction of s to B has a cluster point in the partial product Q 2B X, it is found that the restriction of s to B [ fg – extending B by one element 2 A n B – has a cluster point in its respective partial product Q 2B[fg X, as well. By invoking Zorn’s lemma, the whole of s can be shown to have a cluster point. It follows that the product of any family of compact topological spaces is compact with respect to the product topology. This is Tychono’s theorem. The aim of this text is to set forth a self contained presentation of this proof. Extra attention is given to highlight the deep dependency on the axiom of choice.
9

Development of an Airport Choice Model for General Aviation Operations

Ashiabor, Senanu Y. 04 October 2002 (has links)
The General Aviation Airport Choice model is an attempt to model General Aviation (GA) travel patterns in the US in order to provide a means of assessing the impact of General Aviation activities on the National Air Space system. The model will also serve as part of transportation planning tool to help assess the viability of deploying NASA's Small Aircraft Transportation Systems (SATS) aircraft as a competitive mode of transportation for intercity travel. The General Aviation Airport Choice model developed estimates General Aviation (GA) person-trips and number of aircraft operations given trip demand in the form of GA person trips from counties. A pseudo-gravity model is embedded in the model to distribute the inter-county person-trips to a prescribed set of airports in the US. The airport-to-airport person-trips are split into person-trips by three aircraft modes (single, multi and jet engine) using an attractiveness factor based on average occupancy, utilization and a distance distribution factor for each aircraft type and the number of aircraft based at each airport. The person-trips by aircraft type are then converted to aircraft operations using occupancy factors for each aircraft type. The final output from the model are aircraft operations trip-tables by aircraft type between the airports in the model. The GA trips are estimated in order to provide a means of assessing the impact of GA activities on the National Airspace System. The model output may be used to assess the viability of GA aircraft serving as a competitive mode of transportation for intercity travel. / Master of Science
10

Intern marknadsföring - En fallstudie inom gymbranschen

Johansson, Stina, Haraldsson, Jessica January 2008 (has links)
<p>De stora och etablerade gymkedjorna verkar på en marknad som kännetecknas av att vara mogen och som under de senaste åren blivit utsatt för en ökad konkurrens. Den ökade konkurrensen utgörs utav de nyetablerade lågpriskedjorna. Strukturer med höga omkostnader gör de etablerande svårföränderliga till en sänkning av pris till samma nivå som de nyetablerade. De måste därmed skapa mervärde exempelvis genom personal och service i form utav intern marknadsföring. Studiens syfte är att analysera och undersöka intern marknadsföring mellan ledning och personal och dess påverkan på kundlojalitet och långsiktig överlevnad för ett stort, etablerat träningsföretag. För att belysa problemformuleringen användes en gapanalys för att undersöka eventuella gap mellan ledning, personal och kunder. De teorier som har använts är indelade i teoriområdena kommunikation, motivation samt involvering.</p><p>Det företag som valts att hjälpa är den marknadsledande gymkedjan Sats. Studiens resultat visar på att det inte finns något gap varken mellan Sats ledning och personal eller mellan företag och kunder. Via intern kommunikation, utbildningar och belöningssystem skapas utbildad och motiverad personal. Resultatet påvisar att Sats kunder prioriterar personal och service vid val av gym och anser att detta uppfylls. De undersökta konkurrenterna bedriver ej intern marknadsföring utan fokuserar på pris. Slutsatsen är att Sats bör fortsätta sitt arbete med intern marknadsföring för att skapa kundlojalitet och långsiktig överlevnad. Förslag på vidare forskning är exempelvis att studera andra faktorer inom intern marknadsföring som affärsidé, mål och vision.</p>

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