It is commonly accepted that instrumental responses that have been extinguished can return. For example, in a phenomenon known as the renewal effect, extinguished behaviors return upon removal from the extinction context. Another well-accepted notion is that instrumental behaviors can be thought of as goal-directed actions, which form over the course of moderate amounts of practice or training, and habits, which form after extended practice. Despite years of research on both topics, what happens to actions and habits following extinction is poorly understood. The present experiments examined the renewal of actions and habits following retroactive interference paradigms such as extinction and additional training. Experiment 1 examined renewal of an action following its extinction in a separate context, and demonstrated that the extinguished behavior renewed as an action upon return to the acquisition context. Experiment 2 asked the same question about habits, and found that the behavior renewed as a habit after extinction upon return to the acquisition context. Experiment 3 examined renewal of goal-directed responding in one context following extensive training and conversion into habit in another context. It demonstrated that a single response could manifest as a habit in one context, and renew as an action in the original training context. Experiment 4 asked if this effect depends on returning to the acquisition context, or simply removal from the habit training context. The results suggest that mere removal from the habit training context is sufficient to renew the goal-directed properties of a behavior. Together, the results suggest that actions and habits can be inhibited in a context-specific manner by extinction, and that instrumental behaviors can have both action and habit properties that can each renew under the proper circumstances. The results also expand on the notion that habits are especially context specific, while actions can transfer across contexts.

Thesis (M Med (Family Medicine))--University of Limpopo (Medunsa Campus), 2010. / Introduction: Diabetes Mellitus still remains an important non- communicable disease globally. The burden of the disease continues to rise even in the sub-Saharan Africa. Aim: The study aimed to assess and describe the dietary practices and the prevalence of obesity among type 2 diabetic patients seen at Scott Hospital. Methods: A descriptive cross- sectional study was conducted among type 2 diabetic patients at Scott Hospital, Morija, Lesotho. A simple random sample of 50 participants was selected and each completed an interviewer administered questionnaire. The administration of the questionnaire was done by the researcher and a research assistant. Socio- demographic characteristics of the participants were obtained, anthropometric measurements were height and weight of each participant with subsequent determination of the BMI. Dietary intake was assessed using questions from a modified food frequency questionnaire of 16 food groups that reflect the commonest food items available. Results: The results showed that 86% (43/50) of the participants were females and 14% (7/50) were males with a female: male ratio of 6:1. The majority (72%) were above age 50 years and with regards to educational status, 62% had primary school education as the highest level attained. Four percent (4%) had no formal education. Fifty percent (50%) of the participants were unemployed. The mean weight of the participants was 84.22 ± 13.51 kg and the mean height was 157.76 ± 6.10 cm. The mean BMI was 33.97 ± 4.99 kg/m². Seventy-eight percent (38/50) of the participants were obese, and 14% (7/50) of the participants who were females, were morbidly obese with BMIs ≥ 40kg/m². The prevalence of obesity when stratified by gender showed that 57% (4/7) of male participants and 81% (35/43) of female participants were obese. According to the dietary assessments, food groups with the highest reported consumption per unit per month were; maize meals, breakfast-cereals and bread respectively. Conclusion: The study showed a predominantly female and elderly population of type 2 diabetics at Scott Hospital, Morija, Lesotho. The prevalence of obesity was high (78%) among the participants and this further supports the view that obesity is a major risk factor for type 2 diabetes. Reported dietary intake showed a higher consumption of carbohydrates and a very low intake of dietary fibre as represented by legumes. Keywords: Type 2 diabetes mellitus, dietary habits and obesity.

Thesis (Ph.D.)--Memorial University of Newfoundland, 2005. / Restricted until October 2006. Bibliography: leaves 232-267.

Thesis (M.S.)--Oregon State University, 2007. / Printout. Includes bibliographical references (leaves 100-110). Also available on the World Wide Web.

Abstract   Emma Bergdahl Obstacles and opportunities among occupational health nurses when implementing healthy eating habits. C thesis in Public Health. Faculty of Health and Occupational Studies. University of Gävle. Autumn 2012   Objective: The purpose of this study was to investigate which obstacles and opportunities nurses within occupational health find when trying to implement healthy eating habits among the employees in their respective company. Another objective was to see if the nurses worked according to the Guidelines, issued by the National Board of Health and Welfare. Method: The study was a quantitative study and conducted among nurses in central Sweden. A web survey was distributed to nurses who chose to participate. The response rate was 66 percent. The results were compiled in Excel since the characters and results are displayed in the form of figures, text and quotes. Results: The results showed that the most common obstacles found by nurses when trying to implement healthy eating habits among workers, were lack of motivation, lack of time and finances of companies. The opportunities were motivation, cooperation with other actors and adequate knowledge in the field. Healthy eating habits received low priority among the nurses. Conclusion: Motivation will always be necessary in order to change lifestyle or habits. Therefore, a high priority must be to work more with how to motivate those individuals who may not be so inclined to make a change.

Sustainable design - a study on sustainable design and its incentives and barriers The purpose of this study was to investigate the incentives and barriers existing within companies focusing on eco-design. The aim was also to examine the consumers’ thoughts on eco-design and sustainable products. A further aim was to try to concretize important lessons for future work on sustainable production and consumption. Two methods were used for completing this study; a literature study and a practical study consisting of interviews with companies focusing on eco-design and a survey among students. The result shows that durable goods over the last decades have had a varied revenue growth, showing an increasing trend over recent years. The result also shows a slightly increasing trend on sustainable consumption and production. The main incentives presented in the result were based on some form of recognition of the unsustainable attitude in our society. Among existing barriers the most prominent was associated to economic issues, ignorance and material problems. The result of the survey showed that consumers ranked factors related to eco-design among those who are least considered. For the work towards a sustainable future, people with a similar attitude as the ones involved in the interviewed companies are of great importance. There also seems to be a need for altered market conditions, but this would require a dramatic behavioral change.

Tidigare forskning visar att kvinnor oftare reser kollektivt och att män kör mer bil till och från arbetet. Det framgår att vanor och miljömedvetenhet förklarar en del av människors resmönster. Studier visar också att kvinnor värderar bilens symbolvärde lägre än män. I samarbete med Eskilstuna kommun genomfördes en enkätundersökning med 2299 anställda vid Eskilstuna kommun, varav 491 män. Syftet med studien var att närmare undersöka motiv bakom bilanvändning och om dessa motiv skiljer sig åt mellan män och kvinnor i Eskilstuna kommun. Deltagarna besvarade frågor som berörde personliga resurser, vanor, bilens symbolvärde och inställning till miljön. Studien visar att de som använder bil till och från arbetet, har en större tendens att använda bil även i andra sammanhang. Det visade sig även att kvinnor reser med bil i större utsträckning till och från arbetet än män, vilket vidare bör undersökas då resultatet går emot tidigare forskning.

I denna uppsats har en undersökning av studenters alkoholvanor gjorts. Syftet med arbetet var att få en uppfattning om första års programstudenters alkoholvanor vid Högskolan Dalarna campus Borlänge. Följande frågeställningar belyses i studien: Hur ofta och hur mycket dricker studenter vid respektive program, hur ser kvinnornas alkoholvanor ut jämfört med männens, samt om alkoholvanorna skiljer sig mellan programmen.Jag har använt mig av en kvantitativ enkätundersökning där totalt 60 studenter från tre olika program har medverkat. Studenterna går första året på Högskolan Dalarna och är i åldrarna 19-24 år. De program som undersöktes var Grafisk teknologi och design, Materialdesign samt Ekonomprogrammet. Jag vill påpeka att bortfallet i undersökningen är litet och de flesta har svarat på enkäten (60/74). Vid ett eventuellt bortfall bör man fråga sig om de frånvarande studenterna skiljer sig avsevärt från de studenter som deltog i undersökningen. Orsaken till att några studenter inte var närvarande vid undersökningen kan jag inte uttala mig om.De teorier som används i uppsatsen är teorier om identitetsfinnande, rusets betydelse för konsumtionen, samt en teori om normer och avvikande beteende.Innan jag genomförde undersökningen tog jag kontakt med några av skolans studieadministratörer för att få tillgång till antal registrerade studenter på de olika programmen. Därefter tog jag kontakt med lärare på respektive program och bestämde datum och tid för utlämnande av enkäten. Då kunde jag själv dela ut och samla in enkäten. Efter att jag fått in svar på enkäten sammanställdes all information för att få en övergripande syn på studenternas alkoholvanor.Resultatet av undersökningen visar att 91,7% av studenterna konsumerar alkohol. Den visar också att männen dricker oftare än vad kvinnorna gör och även större mängder vid ett och samma tillfälle. Dock är det många kvinnor som dricker ofta och mycket. Detta kan bero på att de existerande könsroller som finns håller på att lösas upp.Studenter på Materialdesignprogrammet har högst konsumtion om man jämför med de övriga programmen. På detta program dricker många av studenterna fler än 1 gång i veckan. De dricker också stora mängder. Ekonomprogrammet har låg konsumtion både när det gäller hur ofta och hur mycket de dricker. Det mest häpnadsväckande resultatet har programmet Grafisk teknologi och design där det faktiskt är kvinnorna som står för den högsta konsumtionen.

Thesis (Ph.D.)--Bowling Green State University, 2009. / Document formatted into pages; contains xi, 106 p. Includes bibliographical references.

Thesis PlanA (M.S.)--University of Wisconsin--Stout, 2009. / Includes bibliographical references.