The Successive Approximation Register (SAR) Analog to Digital Converter (ADC) is power efficient and operates at moderate resolution. However, the conversion speed is limited by settling time and control logic constraints. This report investigates a flip-flop bypass technique to reduce the required conversion time. A conventional design and flip-flop bypass design are simulated using a 0.18[micrometer] CMOS process. Background and design of the control logic, comparator, capacitive array, and switches for implementing the SAR ADCs is presented with the emphasis on optimizing for conversion speed. / text

This is a slide show of selected photographs from the Hoover Dam Ethnographic Study.

This presentation is was given at the Great Basin Conference in 2006 in Las Vegas, Nevada. This talk presents key findings from the report- Ha`tata (The Backbone of the River): American Indian Ethnographic Studies Regarding the Hoover Dam Bypass Project (Stoffle et al. 2000). This talk highlights the pilgrimage trails to Sugarloaf Mountain.

Introduktion: Depression, ångest, stress och ätstörningsproblematik har visat sig ha en hög prevalens hos personer som lider av obesitas. Syfte: Att undersöka om och i så fall hur ångest och depression mätt i HADS förändras i en grupp som genomgått överviktskirurgi. Av intresse var också att undersöka om viktnedgång samt om preoperativa symtom på stress, hetsätning och känslomässigt ätande predicerar utfallet av symtom på ångest och depression postoperativt. Metod: 30 patienter som genomgått överviktskirurgi på Akademiska sjukhuset i Uppsala under våren 2011 inkluderades i studien. Dessa patienter hade innan genomgången operation och vid en uppföljning sex månader postoperativt besvarat olika screeningformulär avseende psykiskt välmående, ätstörningar och stress. Resultat: Preoperativa symtom på stress, hetsätning och känslomässigt ätande predicerar inte utfallet av symtom på ångest och depression sex månader postoperativt. Viktnedgång predicerar inte utfallet av symtom på ångest postoperativt, däremot kan viktnedgång predicera utfallet av symtom på depression sex månader efter operation. Ingen signifikant skillnad fanns mellan pre- och postoperativa symtom på ångest eller depression. Slutsats: I en grupp patienter där symtom på ångest och depression inte varit högt förekommande preoperativt kan det vara svårt att upptäcka förändringar i hur dessa patienter mår. Fler studier behövs för att kunna ge ett utökat professionellt stöd till denna patientgrupp. / Background: People with obesity have a high prevalence of depression, anxiety, stress and binge eating/emotional eating behaviours. Aim: To analyze if and how anxiety and depression measured with the Hospital and Anxiety Depression Scale change in a group of patients who have gone through Gastric Bypass surgery. Of interest was also to study if weight loss and preoperative symptoms in stress, binge- eating and emotional eating behaviours could predict anxiety and depression postoperatively. Method: 30 patients whom all gone through Gastric Bypass surgery in Uppsala University Hospital were included in the study. All patients had answered screening questionnaires about physically wellbeing, eating disorders and stress before surgery and six months postoperatively. Results: Preoperative symptoms of stress, binge eating and emotional eating disorders do not predict anxiety and depression postoperatively. Weight loss does not predict symptoms of anxiety postoperatively, but could predict symptoms of depression six months after Gastric Bypass surgery. There was no statistically significant difference between pre- and postoperative symptoms of anxiety and depression. Conclusion: Changes in wellbeing following Gastric Bypass surgery are difficult to identify in a group of patients where the occurrence of symptoms of anxiety and depression is low preoperatively. Further research is needed to find and develop professional support to this group of patients.

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This thesis is a step forward in evaluating insulin therapy and defining its role in cardiac surgery first described as Glucose-Insulin-Potassium (GIK) solution 40 years ago. / Chapter (I) includes a review of the literature on insulin therapy in cardiac surgery and illustrates the scientific bases and controversies in this therapy. / Chapter (II) entitled: "Myocardial Protection During Elective Coronary Artery Bypass Grafting Using High Dose Insulin Therapy" represents a manuscript that was presented in the following meetings: (A) Local meetings: (1) McGill cardiovascular research day, February 1/2007, Montreal, Canada. (2) Fraser Gurd annual research day, McGill surgery department, May 31/2007, Montreal, Canada. (B) National meetings: (1) 11th Annual Terrence Donnelly research day for Canadian cardiac surgery residents, May 26/2007, Toronto, Canada. (C) International meetings: (1) 43rd Annual meeting of the Society of thoracic surgeons (STS), January 30/2007, San Diego, United States. A full manuscript was submitted to "The Annals of Thoracic Surgery" for review. / Chapter (III) entitled: "High Dose Insulin Therapy Attenuates Systemic Inflammatory Response in Patients Undergoing Elective Coronary Artery Bypass Grafting" represents a manuscript that was presented in the following meetings: (A) Local meetings: (1) Fraser Guard McGill Surgery department annual research day, May 3/2006, Montreal, Canada. (B) National meetings: (1) 10th Annual Terrence Donnelly research day for Canadian cardiac surgery residents, May 26/2007, Toronto, Canada. (2) Young investigator forum, Canadian Society of Clinical Investigators (CSCI), September 28/2006, Ottawa, Canada. (3) 59 th annual meeting of Canadian Cardiovascular Society (CCS), October 21/2006, Vancouver, Canada. (C) International meetings: (1) American Heart Association (AHA), November 12/2006, Chicago, United states. / Abstracts from this work were published in the following journals: (1) Clinical and Investigative Medicine, Vol. 29, No. 4, August 2006. (2) The Canadian Journal of Cardiology, Vol. 22 supp D, October 2006 (3) Circulation, Vol. 114 supp, No. 18, October 2006. / A full manuscript was submitted to "the journal of thoracic and cardiovascular surgery" for review.

This study examines the underutilization of rural hospitals in Kentucky. The authors study hospital and patient characteristics to determine why and how rural patients bypass local rural hospitals and how they make their decision in the hospital choice. A Health Care Service Survey conducted in rural Kentucky and hospital data drew from American Hospital Directory are used. A binary probit model and a conditional logit model are applied. The results suggest that the hospital quality, prior experiences and the satisfaction of the local hospital, along with patients’ value of hospital size, reputation and patients’ insurance coverage influence rural patients’ hospital choice. The study offers seven policy implications to better utilize rural health care institutions.

Fetma och övervikt är ett allt mer vanligt problem över hela världen och därav ökar även överviktskirurgin. Gastric bypass är den vanligaste metoden i Sverige och ses som ett redskap för viktminskning. För att bibehålla viktminskningen spelar andra faktorer än operationen en roll hos patienterna. Studiens syfte var att finna framgångsfaktorer vid en bibehållen viktminskning postoperativt. Metoden var av fenomenologisk narrativ karaktär och datainsamlingen skedde med hjälp av intervjuer. Intervjuerna transkriberades, meningskoncentrerades och tematiserades. Analysen resulterade i fem framgångsfaktorer (1) kostmedvetenhet (2) socialt stöd (3) göra saker jag inte kunnat innan (4) villig att kämpa (5) hopp om framtiden. Deltagarna var åtta medelålders kvinnor. Resultatet visar gemensamma framgångsfaktorer hos kvinnor som genomgått en gastric bypass-operation. Detta ger studien en hög validitet i frågan om kvinnors upplevelser men begränsar generaliserbarheten. Fortsatta studier med fler och varierande deltagare är därför att rekommendera.