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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.
411

Sensory profiles and seasonal variation of black walnut cultivars and the relationship between sensory characteristics and consumer acceptance of black walnut gelato

Lynch, Catherine A. (Catherine Anne) January 1900 (has links)
Master of Science / Food Science Institute / Kadri Koppel / Black walnut (Juglans nigra L.) is a Juglans species native to the United States. Nuts are collected each fall from black walnut trees and the kernels are consumed in many food products like ice cream, candies, and baked goods. Flavor profiles of black walnut cultivars have been examined, but no studies have looked at the effect of growing season on flavor profile, and few studies have determined consumer acceptance of black walnut food products. The sensory profiles of 10 black walnut cultivars (Football, Vandersloot, Brown Nugget, Pounds, Sparks 127, Davidson, Sparrow, Neel, Emma K, and Tomboy) were evaluated using descriptive sensory analysis. A trained panel scored the intensity of 3 appearance, 7 aroma, 23 flavor, and 6 texture attributes. Results showed that the cultivars differed significantly (P≤0.05) on 11 of these attributes. The results from this study were also compared to results collected in 2011 of 7 black walnut cultivars. Two flavor attributes (black walnut ID and overall nutty) had an interaction effect of year and cultivar, while 7 attributes showed a main effect of year (brown, caramelized, floral/fruity, fruity,-dark piney, musty/dusty, and oily). In general, flavor attributes had higher intensities in 2011 than in 2013. Six of the black walnut cultivars were also incorporated into a gelato base and evaluated by both a trained panel and consumer panel. Trained panelists developed a lexicon for the gelato samples and scored the intensity of 18 flavor attributes. The gelato samples differed on 3 main flavor attributes: black walnut ID, overall nutty, and sour (P≤0.05). Based on consumer liking, there were 3 distinct clusters of consumers. One cluster preferred samples with a milder black walnut flavor, another preferred a more intense black walnut and overall nutty flavor, and the third cluster liked all of the samples. Results from this study indicate that growing season should be considered when determining flavor profile of agricultural products. These results can also help guide growers in selecting cultivars that may produce a more consistent crop year after year, and cultivars that consumers find acceptable in food products.
412

Effects of Person-Environment Fit on Organizational Attraction and Acceptance Intentions during the Pre-Hire Phase of Employment

Gilson, Nicole Louise 01 August 2013 (has links)
Despite the recent recession, organizations continue to search for the "right" employees. Such circumstances highlight the importance of further understanding how individuals make employment decisions and assess fit. By surveying 140 applicants who had recently finished the interview process at a large Midwestern hospital, the current study assessed the multidimensionality and predictive power of person-environment fit (person-vocation fit, person-job fit, person-person fit, and person-organization fit). Results suggested that person-environment fit is multi-faceted; fit dimensions simultaneously work together during the pre-hire phase. Specifically, person-person fit, person-organization fit, and person-vocation fit were significant predictors of organizational attraction. Person-person fit and person-job fit significantly predicted intentions to accept an employment offer. In addition, organizational attraction was identified as a partial mediator between overall person-environment fit and job offer acceptance intentions. Such findings contribute to the organization fit literature and provide practitioners with key insights on how applicants assess fit during the pre-employment stage.
413

Impulsiveness and Self-Reported Values

Werderitch, Joseph 01 December 2016 (has links)
TITLE: IMPULSIVNENESS AND SELF-REOPRTED VALUES MAJOR PROFESSOR: Dr. Mark R. Dixon Towards developing an applied behavior technology that treats vales as the dependent variable of interest, there is a necessity for understanding the relationship between impulsiveness and self-reported values. The purpose of this study was to evaluate how values affected social and delay discounting. Thirty participants were given two surveys, one was a social discounting survey, and the other was a delay discounting survey. Finally, participants were given a valued-living questionnaire. In the social discounting survey, participants were asked to mentally make a list of people they knew from 1-100, 1 being the closest to them and 100 being a distant acquaintance. They were then asked to pick between two choices involving hypothetical money. Starting with the choice of keeping $85 for themselves, or giving $75 to the 1st person on their list. The second choice was to keep $75 for themselves, or give $75 to the #1 person on their list. The monetary value continued to decrease by 10, while the value to give to another person remained the same, these were continued for person #2, # 5, #10, #20, and #50 on their list. The delay discounting instructed participants to choose between two hypothetical choices. The first was receiving $85 today or $75 in 1 week. The second choice was to receive $75 today, or $75 in 1 week. The hypothetical monetary value was decreased by $10, until it reached $5. The valued living questionnaire used a Likert-scale from 1-10 with 1 being ‘not at all important and ’10 being ‘extremely important’ across 10 areas (family-other than marriage or parenting, i marriage/couples, intimate relations, parenting, friends/social life, work, education/training, recreation/fun, spirituality, citizenship/community life, and physical self-care (diet, exercise, sleep). The second section of the questionnaire evaluated committed action, and asked participants to rate how consistent their actions have been with each of these value areas within the past week. A Likert-scale was also used from 1-10, with 1 being ‘not at all consistent with my value’ and 10 being ‘completely consistent with my value’. A Pearson product-movement correlation coefficient was composed to access the relationship between the switch point of discounting and rating of each area of valued living. There were to valued living areas with significant findings. There was a positive correlation between Social AUC and VLQ: Importance- Social/Friends (r=.503, n=30, p=.005). There was also a positive correlation between Delay AUC and VLQ: Importance- Physical self-care (r=.448, n=30, p=.013). There was no correlation between either social AUC and delay AUC and any of the committed action values. The results have implications for a translational understanding of the influence of discounting on reported values and committed action processes.
414

INFLUENCE OF MEDIA ON SELF-OBJECTIFICATION, BODY IMAGE, AND RAPE MYTHS ACCEPTANCE AMONG COLLEGE STUDENTS

Durante Bergue Alves, Catarina 01 May 2017 (has links)
This study is an investigation of how exposure to different media content influences self-objectification, body image, and rape myths acceptance (RMA) in female college students. The purpose of this study was to further explore the effects of immediate media exposure on body image, self-objectification, and RMA, as well as address the gap in the literature regarding the relationship between these variables (Dakanalis et al., 2015; Fox et al., 2015). One hundred and one students that identified as female were randomly assigned to three experimental conditions using a partially blind design. The students watched a short video pertaining to the condition they were assigned (i.e. sexualized content, consent content, control content) and then completed a survey, which included measures of self-objectification, negative body image, positive body image, rape myths acceptance, and demographic variables. Results indicate here was no difference between self-objectification, body image, and RMA scores among participants that were assigned to different experimental conditions. Body image was found to be directly related to RMA, and there was a difference in RMA scores among participants that remembered the university training and those who did not. The present study’s finding expands the knowledge of body image and RMA, and supports the need for interventions targeting attitudes and beliefs regarding rape and consent in college female students. Key words: media, self-objectification, body image, rape myths acceptance, college students.
415

EXPLORING THE RELATIONSHIP BETWEEN COMMITTED ACTION AND PROCRASTINATION

Legaspi, David Nathaniel 01 May 2017 (has links)
Procrastination has been a concept that has recently gained attention. Current research has provided data that suggests there is a positive relationship between committed action (goal setting) and procrastination (Gagnon, Dionne, & Pychyl, 2016). This study had collected data from self-report only using a procrastination scale that has been globally validated (Steel, 2010). Acceptance and Commitment Therapy (ACT) interacts with a person’s psychological flexibility, which can be described as the ability to contact the present moment and then adapt to changes in that moment (Hayes, Strosahl, & Wilson, 2011). Committed action is just part of the six components that make up ACT. Committed action as a concept is concerned with the goals we take on a daily basis that bring us closer to our values. It stands to reason, that the more a person commits to these actions, the less they might procrastinate. The current study extends the existing literature by exploring the possible effect committed action (goal setting) sessions may have on the relationship between procrastination and committed action by examining discussion question turn in across two groups. The outcomes of this analysis may lend to the literature concerning developing a more effective classroom setting (Bijou, 1970). The current study’s purpose is then to increase the level of understanding we have concerning procrastination through a committed action intervention.
416

The effects of brief experiential exercises on committed actions

Morton, Miranda 01 May 2018 (has links)
Many children and adolescents with autism spectrum disorder (ASD) suffer from anxiety, depression, and other disorders. These disorders make it difficult to leave healthy and productive lives and can be experienced across school and social life. The mechanisms underlying anxiety and other disorders can be explained through language and cognition and this is the rational underlying Relational Frame Theory (RFT). RFT suggests that human language and cognition are a direct cause of many human psychological problems as we are able to evaluate words. The cognitive fusion, experiential avoidance, and suppression described by RFT have been expanded to include treatment methods within Acceptance and Commitment Therapy (ACT). ACT is a psychotherapeutic approach that attempts to undermine emotional avoidance explained through RFT and promotes positive behavior change. The purpose of the current study was to evaluate the efficacy of ACT in increasing value-directed behavior in three adults with ASD. The results of this study revealed that brief ACT experiential exercises were effective in increasing value-directed behavior in all participants. Keywords: Autism spectrum disorder (ASD), relational frame theory (RFT), Acceptance and commitment therapy (ACT)
417

Prediction of Clinical Symptoms and Psychological Flexibility Using a Novel Values Card Sort Activity

Kimball, Ryan S. 01 August 2018 (has links)
Values are directly relevant in a number of theoretical orientations in psychology, including Acceptance and Commitment Therapy (ACT). In ACT, clarification of one’s personal values is paramount. The present study examined the ability to predict clinical symptoms and psychological flexibility using variables derived from one’s performance on the ACT Values Card Sort (ACT-VCS), a novel values clarification exercise. The independent variables, obtained from the ACT-VCS, included 1) the number of values endorsed as very important in the initial sort (i.e., valuing propensity), 2) the number of values domains represented in the final sort (i.e., values diversity), and 3) the extent to which one’s values were oriented toward uncontrollable experiences (i.e., control agenda endorsement). Three hierarchical regressions were conducted to examine the extent to which these three predictors accounted for the variance in scores of a) depression, anxiety, and stress, b) psychological flexibility, and c) psychological inflexibility. The psychological flexibility model was significant (∆R squared = .25 (F (3, 69) = 12.20, p < .001) with valuing propensity (squared semi-partial correlation r = .13, p < .001) and control agenda endorsement (squared semi-partial correlation r = .05, p < .01), but not values diversity, independently accounting for a significant portion of the variance. Prior therapy experience moderated some of these relationships. These findings provide preliminary evidence for using performance variables from the ACT-VCS to predict clinical variables.
418

How Gender Typicality Moderates the Relation between Preadolescents' Empathy and Acceptance by Peers

January 2015 (has links)
abstract: Previous research has shown that highly empathic children are generally more emotionally positive, sociable, and altruistic compared to their less empathic peers (Miller & Jansen op de Haar, 1997). These traits and behaviors linked with empathy have been associated with positive outcomes such as popularity in the peer group (Decovic & Gerris, 1994). However, a negative relation between these constructs has been found when studied in the context of preadolescence for boys (Oberle, Schonert-Reichl, & Thomson, 2010), suggesting a potential moderating effect of gender typicality since empathy is classified as a communal and therefore stereotypically feminine trait. The current study examines the relation between the constructs of gender, empathy, gender typicality, and peer acceptance in a preadolescent sample, and mixed findings suggest differential effects of empathy on peer acceptance for preadolescent boys and girls. Future research should continue examining these differential effects for boys and girls throughout childhood and adolescence. / Dissertation/Thesis / Masters Thesis Family and Human Development 2015
419

Análise da formação acadêmica e técnicas de reparos de restaurações pré-existentes na Rede de Atenção em Saúde Bucal / Analysis of academic training and repair techniques of pre-existing restorations in the Oral Health Care Network

Ubiratan D'oro Junior 07 February 2018 (has links)
A substituição total de restaurações dentais que apresentam pequenos defeitos são encontradas com muita frequência na prática da Odontologia. Entretanto, a possibilidade de reparos dessas porções defeituosas podem ser considerados alternativas viáveis à substituição. No entanto, pouco se conhece sobre a aplicação da técnica reparadora. O objetivo deste estudo foi analisar a formação acadêmica e as técnicas de reparos empregados em restaurações dentárias pré-existentes realizadas pelos Cirurgiões-Dentistas na Rede de Atenção em Saúde Bucal, em uma Capital da região Sul do Brasil. Identificando se os cirurgiões-dentistas realizam reparos em restaurações defeituosas, quando e como realizam, além de avaliar se receberam alguma forma de orientação no período acadêmico e se julgam obter sucesso em seus tratamentos reparadores. Para o desenvolvimento do estudo, foi escolhida a cidade de Curitiba. Dos 10 Distritos Sanitários que possui, foram selecionados 5 Distritos, totalizando 58 Unidades Básicas de Saúde. Um total de 134 Cirurgiões-Dentistas na ativa participaram da pesquisa e foram entrevistados aplicando-se um questionário realizado por um único pesquisador. Os questionários incluíam: dados pessoais, realização de reparos em restaurações; formação acadêmica para a execução desta conduta e a técnica empregada. Os resultados foram submetidos ao Teste Qui quadrado ou o Teste de Fisher e o software usado nas análises foi o Statistica 7.0 com nível de significância empregado de 5%. 99% dos Participantes relataram realizar reparos em restaurações e 69% deles não receberam orientação sobre a técnica de reparo durante o período acadêmico (graduação). Dos Participantes da pesquisa, 90% realizam o reparo independente do Profissional que realizou a primeira restauração (p=0,0001). As restaurações diretas são as mais comumente reparadas (65%) e a resina composta foi o material eleito (34%) para a realização do reparo (p=0,003). 77% dos Participantes pretendem utilizar o reparo em todas as situações possíveis (p=0,0001); 25% dos Participantes da pesquisa disseram que realizam o reparo da restauração independente da extensão da cárie (p=0,132); todas as idades são passíveis de receberem o reparo de restaurações defeituosas. A maioria dos Participantes realizam somente retenções adicionais no material restaurador remanescente e na estrutura dental (54%), 49% realizam retenções adicionais e bisel. Para o preparo do material restaurador remanescente e da estrutura dental, utilizam o ácido fosfórico e a aplicação do adesivo (98%) e somente 2% dos Participantes aplicam o silano previamente à aplicação do adesivo. As restaurações de reparo são muito bem aceitas pelos pacientes (98%) e o sucesso dos procedimentos de reparo, de acordo com os Participantes, é de 98%. Praticamente todos os Participantes da pesquisa (97%) acreditam que as técnicas de reparo devem fazer parte do currículo de graduação dos futuros Cirurgiões-Dentistas. Conclui-se que apesar da maioria dos Participantes afirmarem não ter recebido nenhuma orientação durante o período acadêmico (graduação) sobre a técnica de reparos, praticamente todos realizam reparos em restaurações defeituosas e julgam obter sucesso com esse tipo de tratamento. / The total replacement of dental restorations that present small defects are found very frequently in the practice of Dentistry. However, the possibility of repairing these defective portions can be considered viable alternatives to substitution. However, almost nothing is known about the application of the repair technique. The objective of this study was to analyze the academic training and repair techniques used in preexisting dental restorations performed by Dental Surgeons in the Dental Health Care Network in a Capital of Southern Brazil. Identifying whether dentists perform repairs on defective restorations, when and how they perform, and evaluate whether they have received some form of counseling in the academic period and are judged to succeed in their remedial treatments. For the development of the study, the city of Curitiba was chosen. Of the 10 Sanitary Districts it has, 5 Districts were selected, totaling 58 Basic Health Units. A total of 134 Active Dental Surgeons participated in the research and were interviewed applying a questionnaire carried out by a single researcher. The questionnaires included: personal data, repair of restorations; academic background for the execution of this conduct and the technique employed. The results were submitted to the Chi-square test or Fisher\'s test and the software used in the analyzes was Statistica 7.0 with a significance level of 5%. 99% of the Participants reported repairs on restorations and 69% of them did not receive orientation on the repair technique during the academic (graduation) period. The participants of the research, 90% performed the independent repair of the Professional who performed the first restoration (p = 0.0001). The direct restorations were the most commonly repaired (65%) and the composite resin was the material chosen (34%) to perform the repair (p = 0.003). 77% of Participants intend to use the repair in all possible situations (p = 0.0001); 25% of the participants of the study said that they performed repair of the restoration regardless of the extent of caries (p = 0.132); all ages are likely to receive repair of defective restorations. Most Participants only perform additional retentions on the remaining restorative material and dental structure (54%), 49% perform additional retentions and bevel. In order to prepare the remaining restorative material and dental structure, they use phosphoric acid and the adhesive application (98%) and only 2% of the participants apply the silane prior to the application of the adhesive. Repair restorations are very well accepted by patients (98%) and the success of repair procedures, according to the Participants, is 98%. Virtually all Research Participants (97%) believe that repair techniques should be part of the undergraduate curriculum of future Dental Surgeons. It is concluded that although most of the Participants affirm that they did not receive any orientation during the academic period (undergraduate) on the technique of repairs, practically all repairs in defective restorations and believe to be successful with this type of treatment.
420

Desenvolvimento de embutido emulsionado de tilapia (Oreochromis niloticus L.) estabilizado com hidrocoloides / Development of tilapia (Oreochromis niloticus L.) emulsionated sausage stabilized hydrocolloids

Moreira, Ricardo Targino 25 August 2005 (has links)
Orientador: Marcelo Cristianini / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos / Made available in DSpace on 2018-08-05T10:52:06Z (GMT). No. of bitstreams: 1 Moreira_RicardoTargino_D.pdf: 1658501 bytes, checksum: 6b96e753d9b9d4156118662a9a23054e (MD5) Previous issue date: 2005 / Resumo: Atualmente, busca-se a comercialização do pescado na forma mais elaborada possível com o intuito de agregar valor à matéria prima. Tendo em vista a crescente produção da tilápia no Brasil, estudou-se alternativas de processamento deste peixe elaborando-se um embutido emulsionado tipo ¿mortadela¿ e tipo ¿salsicha¿, com e sem adição de gordura vegetal (GV). Os produtos foram avaliados quanto às suas características sensoriais para os atributos aparência, cor, sabor, aroma e textura e teste de intenção de compra. Os produtos apresentaram boas características físicas e sensoriais, o que demonstrou a viabilidade de sua produção. Verificada a viabilidade da adição de GV, foi elaborado emulsionado associando-a com proteína isolada de soja (PIS). Para isto utilizou-se um planejamento estatístico fatorial de 22, variando-se o teor de gordura de zero a 20% e a PIS de zero a 2% e considerando como variáveis respostas a umidade, teor de lipídeos, textura, cor, capacidade de retenção de água (CRA) e avaliação sensorial (aparência, cor, aroma, aspecto geral, textura e inrençao de compra). O uso da PIS influenciou positivamente na aceitação global, aparência, sabor, cor e textura, força de cisalhamento e a GV influenciou positivamente na aceitação geral, aroma, textura, força de cisalhamento e teor de lipídeos. Foi possível elaborar emulsionado formulado com filé de tilápia utilizandose associações de gordura vegetal e proteína isolada de soja, sendo preferido na aceitação do sabor os produtos com baixo teor de gordura, apesar da textura não ter sido satisfatória, o que remete a necessidade de melhorar a textura do produto com baixo teor de gordura. Estudou-se ainda a microestrutura de emulsão processada com tilápia, sendo verificada que a gordura teve distribuição aleatória, estando retida pela malha protéica. Finalmente, elaborou-se emulsionado tipo ¿mortadela¿, com baixo teor de gordura, utilizando-se uma associação de hidrocolóides (carragena, xantana e goma locusta) em proporções variáveis, resultando em 10 formulações. Os dados foram analisados através de um experimento com misturas, utilizando Metodologia de Superfície de Resposta (MSR), com obtenção de funções matemáticas bastante satisfatórias, verificado pelo coeficiente de determinação (R2) de 0,98 a 0,99. Nenhuma das formulações estudadas apresentou perda de peso no cozimento, tão pouco se observou exsudado e perda da estabilidade da emulsão. Foi possível obtere-se um produto tipo ¿mortadela¿ de tilápia com baixo teor de gordura utilizando misturas de hidrocolóides com um alto índice de aceitação / Abstract: Nowadays, there is a trend for commercialization of fish as sophisticated processed products aiming to aggregated value to the raw material. Due to the increasing production of tilapia in Brazil, alternatives of processing were studied to develop of a sausage type product showing acceptable sensory and physicochemical characteristics. Initially, ¿mortadela¿ and a frankfurter like type of products were formulated and processed with and without addition of vegetal fat (VF). The products were evaluated concerning their sensory properties, appearance, color, taste, odor and texture, and an intention of purchase test was performed. Products presenting good sensory and physical qualities were obtained, showing a promising processing viability. In a second step, a ¿mortadela¿ type using tilapia muscle in association with VF and isolated soy protein (ISP) was elaborated. The experiment was based on a 22 factorial design, in which the content of fat ranged from 0 to 20% and the ISP from 0 to 2%. The responses variables were: contents of moisture and lipids, instrumental texture and instrumental color, water binding capacity and sensory characteristics (appearance, color, flavor, general aspect and texture). Determination coefficients (R2) were very satisfactory (ranging from 0.86 to 0.99) for all models. ISP positively affected the general acceptance, appearance, taste, color, texture and shear force. VF positively affected general acceptance, flavor, texture, shear force, lipids content. It was possible to produce an emulsion based in tilapia meat using vegetal fat and isolated soy protein. There was a preference for the products formulated with low fat content, despite their unsatisfactory texture, showing the need for improvement of products texture. The microstructure of the emulsion processed with tilapia muscle was also studied. A low fat ¿mortadela¿ type was elaborated using a hydrocolloid (xantham, LBG and carragena) system. An experiment with mixtures using the Response Surface Methodology (RSM) was performed, in which the objective was to optimize the percentages of hydrocolloids (carrageen, xanthan and locusta bean gum). Determination coefficients (R2) were good (ranging from 0.98 to 0.99) for all models. None of the formulations presented cooking loss of water or presence of exudates, neither loss of emulsion stability was observed. The study showed that it is possible to obtain low fat type ¿mortadela¿ product elaborated with tilapia muscle using a system of hydrocolloids / Doutorado / Doutor em Tecnologia de Alimentos

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