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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.
81

Psychological distress and anxiety compared amongst dental patients- results of a cross-sectional study in 1549 adults

Zinke, Alexander, Hannig, Christian, Berth, Hendrik 26 April 2019 (has links)
Background This study aimed to identify anxiety in dental patients visiting a dental clinic using the Dental Anxiety Scale, their level of psychological distress using the Brief Symptom Inventory-18 and therefore identifying a correlation between these groups as well as their gender and age. Methods An adult sample of N = 1549 patients (865 females, 779 males) was examined over the course of three years using the Brief Symptom Inventory-18 to evaluate psychological distress and the Dental Anxiety Scale to determine anxiety before dental treatment. Evaluations were conducted according to age and gender. Results There was no correlation between different age groups of the sample the Dental Anxiety Scale. Anxiety, depression and GSI were more frequent in patients below the age of 46 than above. Women were more susceptible to signs of Anxiety and Somatization and scored higher on the Dental Anxiety Scale and the Global Severity Index than male patients. There was a significant positive correlation between scores of the BSI-18 categories: Somatization, Anxiety and Depression and the DAS for dental patients. Conclusions This study showed that a relationship between dental anxiety and psychological distress exists. It would be an improvement to use a short questionnaire like the Dental Anxiety Scale to evaluate a patient before his first treatment so that more appropriate treatments can be pursued.
82

STATE-BASED ANALYSIS OF GENERAL AVIATION LOSS OF CONTROL ACCIDENTS USING HISTORICAL DATA AND PILOTS’ PERSPECTIVES

Neelakshi Majumdar (5930741) 22 April 2023 (has links)
<p>General Aviation (GA) encompasses all aircraft operations, excluding scheduled, military, and commercial operations. GA accidents comprise approximately 94% of all aviation accidents in the United States annually. 75% of these accidents involve pilot-related factors (pilot actions or conditions). Inflight loss of control means that the flight crew was unable to maintain control of the aircraft in flight. With almost 50% of loss of control accidents being fatal yearly, it continues to be the deadliest cause of GA accidents.</p> <p><br></p> <p>The most common approach to understanding accident causation is analyzing historical data from sources such as the National Transportation Safety Board (NTSB) database. The NTSB database has abundant rich information. In contrast to the extensive investigations into and detailed reports on commercial aviation accidents, GA accident investigations tend to be shorter, and the resulting reports tend to be brief and limited—especially regarding human factors’ role in accidents. Only relying on historical data cannot provide a complete understanding of accident causation.</p> <p><br></p> <p>There is a clear need to better understand the role of human factors involved in GA accidents to prevent such accidents and thus improve aviation safety. In my research, I focus on a specific type of accidents, inflight loss of control (LOC-I), the deadliest cause of GA accidents. I use historical data analysis and human-subjects research with pilots to investigate the role of human factors in loss of control accidents. Building on previous work, I created a state-based modeling framework that maximizes data extraction and insight formation from the NTSB accident reports by (1) developing a structured modeling language to represent accident causation in the form of states and triggers; (2) populating the language lexicon of states and triggers using insights from accident reports and pilots perspectives via surveys and interviews; and (3) applying Natural Language Processing (NLP) and machine learning techniques to automatically translate accident narratives into the language lexicon. The framework is focused on LOC-I but can be extended to other types of accidents. Findings from my study may help in consistent accident analysis, better accident reporting, and improving training methods and operating procedures for GA pilots.</p>
83

Perceived Barriers to Teaching for Critical Thinking by BSN Nursing Faculty

Shell, R. 01 November 2001 (has links)
The ability to think critically is considered an essential skill of nursing graduates and competent nursing practice. Yet, the literature reports that teachers are having difficulty teaching for critical thinking and that critical thinking is lacking in new nursing graduates. This research study sought to identify barriers to the implementation of critical thinking teaching strategies by nursing faculty currently teaching in generic baccalaureate programs in Tennessee. Surveys were mailed to 262 nursing faculty; 194 were returned, and 175 were usable. Students' attitudes and expectations represented the single greatest barrier to the implementation of critical thinking teaching strategies, followed by time constraints and the perceived need to teach for content coverage. Recommendations to support and encourage faculty to teach for critical thinking are outlined.
84

A dataset for dental anxiety and psychological distress in 1550 patients visiting dental clinics

Zinke, Alexander, Bohl, Christin, Berth, Hendrik 22 April 2024 (has links)
Objectives: Information was collected to identify anxiety in dental patients visiting a dental clinic using the Dental Anxiety Scale, their level of psychological distress using the Brief Symptom Inventory-18 and identifying a correlation between these groups as well as the gender and age. Data description: This data contains a set of 1550 patients’ answers to questionnaires taken before dental treatment in a dental clinic. It is divided into male and female patients as well as according to their age. The level of Dental Anxiety can be interpreted by answers chosen in the Dental Anxiety Scale (DAS) and the level of psychological distress by answers chosen in the Brief Symptom Inventory-18 (BSI-18). This dataset should help to encourage more research in the field of dental anxiety and we hope to see more comparisons with our data in the future or in different regions of the world.
85

Фактори ризика за пад и функционална способност старих особа / Faktori rizika za pad i funkcionalna sposobnost starih osoba / Fall risk factors and functionality in elderly persons

Ivanović Sunčica 12 October 2017 (has links)
<p>Увод. Годишње најмање 30% особа старијих од 65 година доживи један или више падова. Са повећањем година повећава се и озбиљност компликација услед пада, степен функционалног оштећења и ниво инвалидитета. Одговорност за пад приписује се многим факторима ризика. Због сложености њихове природе, од кључног је значаја да се ревидирају концептуални и методолошки оквири за разумевање и предвиђање пада у популацији старих особа. Циљеви истраживања. Утврдити учесталост падова код особа старијих од 65 година; утврдити најзначајније факторе ризика од пада и проценити њихову интеракцију са функционалним способностима и забринутост због пада. Материјал и методологија. Истраживање је спроведено у од фебруара до јуна 2014. године у виду студије пресека и обухватило је 400 испитаника старијих од 65 година. Испитаници су тестирани у кућним условима приликом посете патронажне службе. Коришћени су следећи инструменти: општи упитник, Elderly Fall Screening Test &ndash; ЕFST, Multi-factor Falls Questionnaire &ndash; MFQ, Tinetti Balance Assessment, Lawton Instrumental Activities of Daily Living Scale &minus; IADL, Falls Efficacy Scale International FES-I. Стaтистички прорaчуни су вршени прогрaмом SPSS верзијa 20. Резултати истраживања. Резултати студије показују да је пад доживело 55% испитаника. Регресиони модел EFST са варијаблама био је статистички значајан, а као независни предиктори показали су се женски пол (OR = 2,751; &lt; 0,001), године старости (OR = 1,138; p &lt; 0,001), и степен образовања (OR = 0,554; p = 0,027). Слични резултати су добијении и за регресиони модел са Тинетијевим скором где су се као независни предиктори показали пол (Beta = -0,107; p = 0,029) старост (Beta = -0,260; p &lt; 0,001) и степен образовања (Beta = 0,191; p &lt; 0,001). Све корелације између ЕFST, FESI, IADL и скором Тинетијевог теста биле су статистички значајне (p &lt; 0,05). Вредности скора FESI биле су у јакој позитивној корелацији са скором ЕFST и изузетно негативној корелацији са IADL и скором Тинетијевог теста. Скор ЕFST показао је умерену негативну корелацију са скором IADL и јаку негативну са скором Тинетијевог теста, док су скор IADL и скор Тинетијевог теста показали умерену позитивну корелацију. Модел EFST био је статистички значајан и у целини тачно класификује 83,3% случајева. Варијабле које су се показале као независни предиктори били су: Тинети скор (OR = 0,783; p &lt; 0,001), скор (OR = 1,041; p = 0,019) и ортостатска хипотензија (OR = 2,291; p = 0,035). Закључак. У испитиваној популацији падови су веома учестала појава и више од половине особа доживела је пад у последњих годину дана. У повећаном ризику од пада су жене. Такође ризик од пада повећава се са годинама старости. Нижи степен образовања показао се као независни предиктор пада. Предикција ризика од пада утврђеног на основу скрининг тест за пад код старих особа у општој популацији могућа је уз висок степен детерминације на основу скора Тинетијевог теста и, скора FESI и ортостатске хипотензије.</p> / <p>Uvod. Godišnje najmanje 30% osoba starijih od 65 godina doživi jedan ili više padova. Sa povećanjem godina povećava se i ozbiljnost komplikacija usled pada, stepen funkcionalnog oštećenja i nivo invaliditeta. Odgovornost za pad pripisuje se mnogim faktorima rizika. Zbog složenosti njihove prirode, od ključnog je značaja da se revidiraju konceptualni i metodološki okviri za razumevanje i predviđanje pada u populaciji starih osoba. Ciljevi istraživanja. Utvrditi učestalost padova kod osoba starijih od 65 godina; utvrditi najznačajnije faktore rizika od pada i proceniti njihovu interakciju sa funkcionalnim sposobnostima i zabrinutost zbog pada. Materijal i metodologija. Istraživanje je sprovedeno u od februara do juna 2014. godine u vidu studije preseka i obuhvatilo je 400 ispitanika starijih od 65 godina. Ispitanici su testirani u kućnim uslovima prilikom posete patronažne službe. Korišćeni su sledeći instrumenti: opšti upitnik, Elderly Fall Screening Test &ndash; EFST, Multi-factor Falls Questionnaire &ndash; MFQ, Tinetti Balance Assessment, Lawton Instrumental Activities of Daily Living Scale &minus; IADL, Falls Efficacy Scale International FES-I. Statistički proračuni su vršeni programom SPSS verzija 20. Rezultati istraživanja. Rezultati studije pokazuju da je pad doživelo 55% ispitanika. Regresioni model EFST sa varijablama bio je statistički značajan, a kao nezavisni prediktori pokazali su se ženski pol (OR = 2,751; &lt; 0,001), godine starosti (OR = 1,138; p &lt; 0,001), i stepen obrazovanja (OR = 0,554; p = 0,027). Slični rezultati su dobijenii i za regresioni model sa Tinetijevim skorom gde su se kao nezavisni prediktori pokazali pol (Beta = -0,107; p = 0,029) starost (Beta = -0,260; p &lt; 0,001) i stepen obrazovanja (Beta = 0,191; p &lt; 0,001). Sve korelacije između EFST, FESI, IADL i skorom Tinetijevog testa bile su statistički značajne (p &lt; 0,05). Vrednosti skora FESI bile su u jakoj pozitivnoj korelaciji sa skorom EFST i izuzetno negativnoj korelaciji sa IADL i skorom Tinetijevog testa. Skor EFST pokazao je umerenu negativnu korelaciju sa skorom IADL i jaku negativnu sa skorom Tinetijevog testa, dok su skor IADL i skor Tinetijevog testa pokazali umerenu pozitivnu korelaciju. Model EFST bio je statistički značajan i u celini tačno klasifikuje 83,3% slučajeva. Varijable koje su se pokazale kao nezavisni prediktori bili su: Tineti skor (OR = 0,783; p &lt; 0,001), skor (OR = 1,041; p = 0,019) i ortostatska hipotenzija (OR = 2,291; p = 0,035). Zaključak. U ispitivanoj populaciji padovi su veoma učestala pojava i više od polovine osoba doživela je pad u poslednjih godinu dana. U povećanom riziku od pada su žene. Takođe rizik od pada povećava se sa godinama starosti. Niži stepen obrazovanja pokazao se kao nezavisni prediktor pada. Predikcija rizika od pada utvrđenog na osnovu skrining test za pad kod starih osoba u opštoj populaciji moguća je uz visok stepen determinacije na osnovu skora Tinetijevog testa i, skora FESI i ortostatske hipotenzije.</p> / <p>Introduction. Annually at least 30% of people over 65 experience one or more falls. With the increase in years, the severity of complications due to falls, degree of functional impairment and level of disability also increase. The responsibility for the fall is attributed to many risk factors. Due to the complexity of their nature, it is crucial that the conceptual and methodological frameworks for understanding and predicting the decline in the elderly population are revised. Research goals. Determine the incidence of falls in people over 65 years of age; identify the most important risk factors of the fall and evaluate their interaction with functional abilities and fear for falling. Material and methodology. The survey was conducted from February to June 2014 in the form of a cross sectional study and included 400 respondents over 65 years of age. Respondents were tested at home during a visit of the patronage service. The following instruments were used: general questionnaire, Elderly Fall Screening Test - EFST, Multi-factor Falls Questionnaire - MFQ, Tinetti Balance Assessment, Lawton Instrumental Activities of Daily Living Scale - IADL, Falls Efficacy Scale International FES-I. Statistical calculations were performed by the SPSS version 20 program. Research results. The results of the study show that the fall was experienced by 55% of respondents. The regression model EFST with variables was statistically significant, and as independent predictors the female sex (OR = 2,751; &lt;0,001), age (OR = 1,138; p &lt;0,001), and the level of education (OR = 0,554; p = 0.027) were shown. Similar results were obtained for the regression model with the Tinetti&#39;s score, where the gender (Beta = -0.107; p = 0.029) age (Beta = -0.260; p &lt;0.001) and education (Beta = 0.191; p &lt; 0.001) were shown as independent predictors. All correlations between EFST, FESI, IADL and the Tinetti&#39;s test score were statistically significant (p &lt;0.05). The FESI score values were in a strong positive correlation with the EFST score and extremely negative correlation with IADL and the Tinetti&rsquo;s test score. The EFST score showed a moderate negative correlation with the IADL score and a strong negative with the Tinetti&rsquo;s test score, while the IADL score and the Tinetti test score showed moderate positive correlation. The EFST model was statistically significant and in its entirety accurately classified 83.3% of cases. Variables that proved to be independent predictors were: Tinetti score (OR = 0.783; p &lt;0.001), score (OR = 1.041; p = 0.019) and orthostatic hypotension (OR = 2.291; p = 0.035). Conclusion. In the studied population, falls are a very common occurrence and more than half of the people experienced a fall in the past year. Women are at increased risk of falling. Also, the risk of falling increases with age. A lower level of education has proven to be an independent fall predictor. Prediction of the risk of a fall that has been established on the basis of a screening test for elderly people in the general population is possible with a high degree of determination based on the Tinetti test score and, recent FESI and orthostatic hypotension.</p>

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