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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.
231

Essays on quasi-orderings and population ethics

Piggins, Ashley James January 1998 (has links)
No description available.
232

Person and Number Marking in Lakota

Fountain, Amy 02 August 2010 (has links)
A introductory problem set in morphology using Lakota (Siouan). Set includes a word and pdf version, but no answer key. Note that the word document uses the old SIL Doulos IPA93 font. / This collection consists of learning objects developed for use in courses offered by the Department of Linguistics. Learning objects include lectures, presentations, quizzes, activities, and more. Access to this collection is restricted to authorized faculty and instructors. For access to this collection, please contact Dr. Amy Fountain, Department of Linguistics, avf@email.arizona.edu.
233

How do rural abet centres address the challenges of HIV/AIDS prevention and support? A view from the Limpopo province of South Africa

Kiggundu, Edith Mwebaza 13 March 2006 (has links)
Doctor of Education - Adult Education / Despite numerous intervention strategies, HIV/AIDS continues to spread and to pose a threat to the socio-economic transformation of South Africa. There is a need for fresh approaches to HIV/AIDS education for adults and youth in South Africa, particularly for those marginalized by society, such as rural black women. The challenge is to devise appropriate, affordable, socially acceptable and sustainable strategies to help people living with HIV/AIDS, especially in the rural communities. The broad objective of the study was to examine ways in which rural ABET centres address the challenges of HIV/AIDS prevention and support in the Limpopo Province of South Africa. A case study approach was used to investigate the ways in which five operational ABET centres addressed the epidemic in their communities. The intentions and actions of the ABET District Co-ordinator (1), Circuit Area Managers (5), Centre Managers (5), educators (10) and learners (80) were studied. Methods used in the collection of data were in-depth, semi-structured interviews, focus groups, critical incident review, and participant observation. The research investigated ways in which ABET centres dealt with HIV/AIDS-related issues, and the attitudes, beliefs and practices of ABET practitioners and learners with respect to HIV/AIDS prevention practices and care issues and how these impacted on the centres’ ability to address HIV/AIDS. The research results show that the human, social, structural and infrastructure constraints currently faced by the centres hinder their ability to play an effective and meaningful role in dealing with the epidemic. Access to knowledge, participation in social networks and entrenched cultural practices all play a role in defining the manner in which the communities have responded to HIV/AIDS. Through an analysis of the environment in which the ABET centres operate, and the varied success of their programmes in addressing HIV/AIDS, recommendations have been drawn up to assist ABET centres to address the pandemic more effectively. The study concludes that ABET centers, through acknowledgment of their role and effective use of resources in collaboration with the available networks can make a meaningful contribution in curtailing the spread of HIV/AIDS and supporting the people affected by HIV/AIDS in the communities in which they operate.
234

Radioactive fall-out from the Chernobyl nuclear power plant accident in 1986 and cancer rates in Sweden, a 25-year follow up

Alinaghizadeh, Hassan January 2019 (has links)
Aim: The current research aimed to study the association between exposure to low-dose radiation fallout after the Chernobyl accident in 1986 and the incidence of cancer in Sweden. Methods: A nationwide study population, selecting information from nine counties out of 21 in Sweden for the period from 1980 – 2010. In the first study, an ecological design was defined for two closed cohorts from 1980 and 1986. A possible exposure response pattern between the exposure to 137Cs on the ground and the cancer incidence after the Chernobyl nuclear power plant accident was investigated in the nine northernmost counties of Sweden (n=2.2 million). The activity of 137Cs at the county, municipality and parish level in 1986 was retrieved from the Swedish Radiation Safety Authority (SSI) and used as a proxy for received dose of ionizing radiation. Information about diagnoses of cancer (ICD-7 code 140-209) from 1958 – 2009 were received from the Swedish Cancer Registry, National Board of Health and Welfare (368,244 cases were reported for the period 1958 to 2009). The incidence rate ratios were calculated by using Poisson Regression for pre-Chernobyl (1980 – 1986) and post-Chernobyl (1986 – 2009) using average deposition of 137Cs at three geographical levels: county (n=9), municipality (n=95), and parish level (n=612). Also, a time trend analysis with age standardized cancer incidence in the study population and in the general Swedish population was drawn from 1980 – 2009. In the second study, a closed cohort was defined as all individuals living in the three most contaminated counties in mid-Sweden in 1986. Fallout of 137Cs was retrieved as a digital map from the Geological Survey of Sweden, demographic data from Statistics Sweden, and cancer diagnosis from the Swedish Cancer Registry, National Board of Health and Welfare. Individuals were assigned an annual 137Cs exposure based on their place of residence (1986 through 1990), from which 5-year cumulative 137Cs exposures were calculated, accounting for the physical decay of 137Cs and changing residencies. Hazard ratios for having cancer during the follow-up period, adjusted for age, sex, rural/non-rural residence, and pre-Chernobyl total cancer incidence, were calculated. Results: No obvious exposure-response pattern in the age-standardized total cancer incidence rate ratios could be seen in the first study. However, a spurious association between the fallout and cancer incidence was present, where areas with the lowest incidence of cancer before the accident coincidentally had the lowest fallout of cesium-137. Increasing the geographical resolution of exposure from the average values of nine counties to the average values of 612 parishes resulted in two to three times higher degree of variance explanation by regression model. There was a secular trend, with an increase in age standardized incidence of cancer from 1980 – 2009. This trend was stronger in the general Swedish population compared to the nine counties of the present study. In the second study, 734,537 people identified were divided into three exposure categories: the first quartile was low exposure (0.0 to 45.4 kBq/m2), the second and third quartiles were intermediate exposure (45.41 to 118.8 kBq/m2), and the fourth quartile was highest exposure (118.81 to 564.71 kBq/m2). Between 1991 and 2010, 82,495 cancer cases were registered in the three counties. Adjusted HRs (95% CI) were 1.03 (1.01 to 1.05) for intermediate exposure, and 1.05 (1.03 to 1.07) for the highest exposure, when comparing to the reference exposure. Conclusion: Using the ecological data, there was no exposure response trend; however, after refining the data to the individual level of exposure, there was an overall exposure response pattern. Nonetheless, due to the time dependency, these results were restricted to the age group of 25 – 49 among males. Using register-based data only, for determining the association between low-dose exposure to radiation and the risk of developing cancer, is difficult since we cannot control for other significant factors that are associated with cancer.
235

A Study of Critical Value Notification in the Outpatient Setting: The Relationship Between Physician Response and Patient Outcomes

Finney, Kristie Renee 01 January 2017 (has links)
Critical values are laboratory values that represent a life-threatening condition for which there is a treatment available. Laboratories make immediate notifications to ordering providers when critical values are identified so that they may quickly act to initiate a treatment for their patient. The majority of laboratories apply the inpatient critical value list to the outpatient setting, although there are many differences between an acutely ill inpatient population and an ambulatory outpatient population. The goal of this study was to determine if providers responded to the critical values in the outpatient setting and to determine if there was a difference in outcome indicators when providers responded to notifications and when they did not respond to notifications. Data for 673 critical value notifications for PT/INR, Digoxin, and Glucose results were collected from Riverside Health System’s five laboratories. Analysis suggested that the inpatient critical value lists and thresholds may not be appropriate to apply to the outpatient setting. In this study of 637 critical value notifications, providers chose not to respond to 25.7% of critical value notifications. Providers were more likely to respond to PT/INR and Digoxin critical value notifications that glucose critical value notifications. None of the cases for either of the three tests that went without a provider response resulted in death or serious harm to a patient, indicating that the critical value thresholds do not meet the definition of a critical value in the outpatient setting. In the future, laboratories should explore the utilization of a different critical value list and thresholds for the outpatient setting based upon patient outcomes.
236

English remediation as a predictor of student success in an undergraduate adult program

Burke, Karen Mahovich. January 2007 (has links) (PDF)
Thesis (M.A.)--Regis University, Denver, Colo., 2007. / Title from PDF title page (viewed on Mar. 13, 2007). "Higher Education Advising and Instruction"--T.p. Includes bibliographical references.
237

An Investigation of Basic Probability Operations Using AND and OR Operations

Tsoi, Joannie January 2007 (has links)
The purpose of this thesis was to observe people’s abilities to compute probability problems at a fundamental level. The problems in this study were presented in an abstract format to ensure non-ambiguity in its interpretation. The study was administered to university level students. The focus was to determine people’s ability to answer probability questions that combined the probabilities of two single events, using the most basic types of operations: AND and OR. The study found that while most people were able to compute AND type probability questions, most had trouble with OR operations. Of special interest was a switching strategy that was employed in computing OR operations as the probability of a single event varied. The study also revealed that statistically sophisticated people were able to adopt the mindset of people who were statistically naïve. Further research is required in order to develop a better framework in understanding people’s logical process of computing these basic probability questions as well as its application to our everyday lives.
238

AUTOMATISERAD KONSTRUKTION APPLICERAT PÅ GRENSTÄLL

Jonsson, Viktor, Ottosson, Simon January 2010 (has links)
Examensarbetet har utförts på Weland Lagersystem AB i Gislaved som tillverkar och säljer lagersystem. Företaget är en del i Welandkoncernen och ägs därmed av Weland AB. Arbetet handlar om att effektivisera konstruktionsprocessen på Weland Lagersystem AB, för produkten grenställ1. Konstruktionsprocessen består idag av ett flertal moment. Ett av dessa moment, som idag utförs manuellt och är tidskrävande, är skapande av geometriska modeller. Effektivisering av denna process, för produkten grenställ, är gjord genom automatisering.Två automatiseringsförslag togs fram och evaluerades för att finna det, i detta fall, bästa förslaget med hjälp av gjorda metoder som funktionsanalyser, investeringskalkyler och uppnåbarhetsgraden för respektive förslag. Likaså gjordes en implementering av automatiseringen för att uppnå tidsbesparingar och därmed ekonomiska vinster hos företaget Weland Lagersystem AB.Genomförandet av automatiseringen har till största del bestått av programmering i VBA (Visual Basic for Applications), som är synkroniserat med CAD (Computer Aided Design) programmet SolidWorks. Därför beskrivs en del utmaningar som har dykt upp under programmeringens gång. I resultatet presenteras investeringskalkylens nyttoeffekt tillsammans med en uppskattad jämförelse på hur enkelt det är att skapa funktionerna (som framgår i funktionsanalysen), för respektive lösningsförslag. Likaså dras sedan en slutsats kring vilket förslag som är bäst lämpad för Weland Lagersystem AB. Till sist visualiseras bilder med förklarande text för att visa utförandet av den färdiga automatiseringen. Slutligen kommer en slutsats kring automatisering överlag och hur vi tror den utvecklas i framtiden att dras. Likaså kommer olika vidareutvecklingsförslag på automatiseringen vi åstadkommit presenteras. Det kan innebära att göra automatiseringsprogrammet mer komplett samt integreras med andra moment i konstruktionsprocessen.
239

An Investigation of Basic Probability Operations Using AND and OR Operations

Tsoi, Joannie January 2007 (has links)
The purpose of this thesis was to observe people’s abilities to compute probability problems at a fundamental level. The problems in this study were presented in an abstract format to ensure non-ambiguity in its interpretation. The study was administered to university level students. The focus was to determine people’s ability to answer probability questions that combined the probabilities of two single events, using the most basic types of operations: AND and OR. The study found that while most people were able to compute AND type probability questions, most had trouble with OR operations. Of special interest was a switching strategy that was employed in computing OR operations as the probability of a single event varied. The study also revealed that statistically sophisticated people were able to adopt the mindset of people who were statistically naïve. Further research is required in order to develop a better framework in understanding people’s logical process of computing these basic probability questions as well as its application to our everyday lives.
240

Mathematical Problem Posing Instruction for Aboriginal school children: Case of Four basic algorithms

Yen, Su-Lan 10 February 2009 (has links)
The aim of this study is to investigate differences between aboriginal and Han fifth graders in problem posing. The objectives of research include: (1) design and implementation of arithmetic problem posing process; (2) investigation of the arithmetic learning condition for aboriginal and Han pupils; and (3) investigation of the misconception presentation difference between aboriginal and Han pupils in problem posing. The problem posing process falls into 3 stages: ¡§problem solving¡¨, ¡§problem posing¡¨, and ¡§problem posing-solving¡¨. This study applied the problem solving and problem posing learning sheets for pupils to engage in individual problem solving and problem posing. Pupils were requested to complete a learning journal after class. As a teacher, the researcher allowed aboriginal and Han pupils to engage in problem solving and problem posing based on 3 types of questions: word algorithm, calculation, and open-end questions; and collected data with learning journals and pupil interviews. Findings include: (1) pupils have different performances when posing different types of problems; (2) both aboriginal and Han pupils can pose feasible and appropriate questions, particularly for word items, though it is not easy for pupils to pose appropriate open-end questions; and (3) the content of problems posed varies as a result of environmental and cultural differences. Additionally, the problem posing teaching allows pupils to feel more interested in learning mathematics, and such a positive learning attitude can enrich the mathematic concepts and enhance the thinking ability of pupils. Keywords: problem posing, four basic operations, aboriginal children

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