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1
宅, 香菜子, and Kanako TAKU. "思春期自我発達の促進要因に関する理論的検討 : ストレス体験過程の積極的意義に着目したモデル構築の提案." 名古屋大学大学院教育発達科学研究科, 2002. http://hdl.handle.net/2237/3133.
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Steffens, Lani C. "Mindfulness meditation and relaxation as methods of coping with ego-depletion /." View online, 2009. http://ecommons.txstate.edu/psyctad/4.
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Orum, Margo. "Moments of insight sudden change in ego development /." Phd thesis, Australia : Macquarie University, 2004. http://hdl.handle.net/1959.14/29015.
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Thesis (PhD)--Macquarie University, Division of Linguistics & Psychology, Department of Psychology, 2004.Bibliography: p. 478-485.
Overview of introductory chapters -- Loevinger's conception of ego development -- How might ego stage change happen? -- Theories of sudden change -- Summary of introductory theory -- Aims of the study -- Method -- Preliminary results -- Stages 1-2: analysis of themes in stories of moments of insight -- Stage 3: analysis of story themes by ego level -- Stage 4: examining stories for evidence of ego level change -- Looking for signs of ego level change in case studies -- Case study 1: Sarah -- Case study 2: Louise -- Case study 3: Kasandra -- Case study counter example: Philip -- Revisiting three theoretical tenets of ego development -- Discussion.
Moments of insight - dramatic shifts in perspective in how a person sees him or herself or the world - may provide us with glimpses of how accelerated change might happen in Loevinger's (1976) stages of ego development. Identifying moments of insight as potentially being structural phenomena, and the marrying of them into ego development theory is original to this thesis. -- Ego development proceeds in successive stages that Loevinger described as "self-paradigms", somewhat like Kuhn's (1962) view of paradigms. If this metaphor holds, then at least sometimes, people would be expected to experience sudden, revolutionary paradigm-style changes in their stage of ego development. However only one substantial theory exists as to how stage-changes happen, and that is a theory of gradual change (Kegan, 1979), which is likely the most common form of change. A theory of sudden, revolutionary, paradigm-style change, then, would seem to address a theoretical gap in the concept of how ego development proceeds. This thesis seeks to address that gap. -- A total of 80 participants were tested in regard to their ego development level and a range of secondary measures, and invited to tell stories of their moments of insight: 15 through the medium of interviews (3 of whom became "case studies" and a fourth, a "counter example"), while 65 wrote their stories in questionnaires. -- Analysis was conducted through theoretical argument, through qualitative analysis backed by evidence from story data, and by quantitative analysis of the common themes apparent in the moment of insight stories. Criteria were developed from the data for identifying prototypical examples of moment of insight stories, and criteria for judging ego level change in transcripts were Loevinger's (1976) empirically derived stage descriptions. -- It was shown that these prototypical experiences were those most readily linked with, and potentially indicative of the connection between moments of insight and ego level advancement. The counter example case study also powerfully revealed the conflict felt, even at a high ego level, when there is no "crystallisation of integration" afforded by a moment of insight experience. -- The evidence suggests that moments of insight may indeed be times of sudden ego development change.
Mode of access: World Wide Web.
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Allen, Bruce W. (Bruce Wayne) 1958. "Perspective Taking and Self Disclosure." Thesis, University of North Texas, 1988. https://digital.library.unt.edu/ark:/67531/metadc500482/.
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The effects of taking a third person role on self disclosure, self sympatheticness and several nonverbal parameters of task involvement were examined in a psychotherapy analogue study. Subjects were classified as high or low in ego strength using previously established norms for college students. In the third person role subjects were instructed to describe themselves from the perspective of an "intimate and sympathetic best friend." An encouragement to talk format was used to facilitate self description from the first person. Support was not found for the hypotheses that altering the perspective used in self description would increase self disclosure and that high ego strength subjects would be better able to use a perspective taking intervention. Theoretical and methodological issues are discussed. Recommendations for future research are made.
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Kahan, Dana. "Conformity and dietary disinhibition, an examination of externality and ego strength in restrained eaters." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0027/MQ40684.pdf.
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Ross, Mary R. "Annealed by death, ego strength and self-congruency following adolescent loss of a parent." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ61677.pdf.
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Freeman, Dorothy McCargo. "The Contribution of Faith and Ego Strength to the Prediction of GPA among High School Students." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/26024.
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The primary purpose of this study was to investigate the extent to which measures of ego strength, as conceived by Erikson (1963a) and operationalized by Markstrom, Sabino, Turner and Berman (1997), contribute to the prediction of academic achievement of high school students. At issue was whether the ego strength variables enhance prediction beyond that provided by selected demographic variables and two measures of religiosity: faith participation and faith importance.
Participants included 121 Black and 131 White students of Virginia. They were in the ninth through twelfth grades and were attending a single high school in the Tidewater area of Virginia. They were administered a questionnaire that included several demographic questions, two questions regarding religion in their lives, and five subscales from the Psychosocial Inventory of Ego Strength (PIES) developed by Markstrom et al. (1997). These variables were used in a series of hierarchical regression analyses to predict grade-point-average (GPA) which was obtained from the permanent school records of each student.
Significant relationships were found between and among the five psychosocial ego strengths. Several relationships were found between students’ psychosocial ego strength attributes and parents’ educational levels. A positive significant relationship was found between the total ego strength and academic achievement. Some differences were found between race and the Hope subscale, faith participation, and faith importance. Race was also found to be a significant influence on the predictive relationships between psychosocial total ego strength and academic achievement. Total ego strength was found to be a significant predictor of academic achievement.
The essential finding of the study was that ego strength measures explained approximately 10% of the variance in GPA above that already accounted for by the demographic variables and the two religiosity variables. The items measuring the importance of faith and participation in faith activities did not contribute to the prediction of GPA, except for faith participation among Black students.Ph. D.
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Edwards, Kate. "Self-Control in Overweight and Obese Individuals: The Relationship of Dispositional Self-Control and Blood Glucose." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc862748/.
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Currently, the etiology of obesity is conceptualized as a confluence of environmental, socioeconomic, behavioral, biological and genetic factors. With regard to behavioral factors, some have suggested that a failure of self-control may contribute to the difficulty of an overweight/obese individual because of their inability to resist food or maintain physical activity. Recent research proposed that self-control could be described as similar to a muscle that can be fatigued. Thus, if an individual engages in a self-control task they have lessened ability to utilize self-control on a subsequent task. Theory also suggests self-control may be fueled by a finite resource, identified as blood glucose. The role blood glucose plays is important to understand, especially in overweight and obese populations, as they may be more likely to be insulin resistant. In effect overweight and obese individuals are less likely to adequately process glucose. Therefore overweight/obese individuals might react to self-control tasks differently than normal weight individuals. Participants who were considered normal weight, overweight, and obese were recruited from the UNT research pool. They answered questions about their trait self-control in daily life and engaged in either a task that required them to exert self-control (e.g., resist crossing out a letter unless criteria is met) or a control task (e.g., cross out a letter without restriction). All participants then engaged in a subsequent self-control task to assess if engaging in the initial self-control task reduced performance on the subsequent self-control task compared to the control task. The current research findings were not in line with previous research, in that a depletion effect in self-control was not observed; in neither the normal weight individuals nor the overweight and obese groups. There were several limitations that may have contributed to these findings including; higher DSC than observed in the general population and a possible adaptation effect due to the duration of the self-control tasks, which is in keeping with subsequently published research.
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Fullerton, Christopher L. "Testing the strength model of self-control : does willpower resemble a muscle?" Thesis, University of Wolverhampton, 2016. http://hdl.handle.net/2436/620393.
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The strength model of self-control predicts that when people exert self-control, they should show performance decrements on subsequent self-control tasks. However, it is possible that this pattern of behaviour is confined to specific experimental procedures, which amplifies the effect. The aims of this thesis are to; 1) test the strength model predictions in sport; and 2) examine emotion as a mediator of self-control performance effects. Study 1 consisted of two experiments. Experiment 1 set out to demonstrate a pattern of resource depletion. Forty-three sport and exercise students performed either an incongruent (self-control depletion) or congruent (control) Stroop task before and after performing a virtual reality cycling task on an indoor cycling ergometer. Findings showed the depletion group performed worse on the second Stroop task than on their first task or than the control group. Experiment 2 sought to address some of the methodological concerns in Experiment 1, and examine emotion as a factor explaining performance. Forty-eight physically active participants followed the same experimental protocol, but with an additional iteration of both tasks. Results demonstrated that both cycling and Stroop task performance improved across time. In addition, participants reported feeling happier and more motivated during the second cycling task. Study 2 provided a conceptual replication of Study 1, using different tests of self-control. Twenty-six university-level male soccer players either performed the Loughborough Soccer Passing Test (LSPT) with (self-control depletion) or without (control) an audio file simulating crowd noise, and then performed the wall squat muscle endurance test. The self-control depletion group reported feeling more anxious during the LSPT and performed worse than the controls on the wall squat. III Next, in Study 3, nineteen well-trained competitive endurance runners performed a self-paced 1600 m running trial and then ran a second trial either self-paced or with a pacemaker. The pacemaker had no significant effect on actual performance time but participants reported feeling more anxious beforehand and adopted a fast start strategy, whereas the self-paced group had a conservative pacing pattern. Study 4 showed that, for females, consuming a sports drink—as opposed to plain water—associated with better physical (high-intensity track running) and cognitive self-control (Stroop) performance. In addition, they appeared to be happier drinking water, and more anxious drinking the sports drink—an effect that diverged over the six weeks. Study 5 examined the effects of three strategies—designed to increase or decrease the intensity of emotions—on emotion, pacing strategy and 1600 m performance. Results showed the intervention designed to decrease unpleasant emotions was associated with lower anxiety, higher calmness, a slower first 400 m, and more overall consistent pacing strategy. Study 6 examined the effects of imagery training on swimming tumble-turn performance. Findings showed no significant intervention effect, a result that goes against the proposed benefits of psychological skills training and runs counter to the predictions of the strength model. Collectively, the evidence in the thesis provides limited support for the strength model. It is concluded that self-control performance does not inevitably deteriorate across self-control tasks where the individual is well-versed with the task demands, or where tasks are not physically strenuous enough to tax mental resources. In contrast, the explanation for performance deterioration across a series of novel tasks is likely to extend beyond that of a self-control resources perspective. Future research might profitably test this proposal.
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De, Klerk Jacoba Elizabeth. "Hypnotherapeutic ego strengthening with coronary artery bypass surgery patients and their spouses / acoba Elizabeth de Klerk." Thesis, North-West University, 2003. http://hdl.handle.net/10394/441.
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Coronary artery bypass surgery (CABS) is highly stressful for couples, since comorbid
anxiety and depression are most commonly reported and hence most researched pre- and
postoperative emotional states. Thus, patients' psychological well-being may contribute
more to the level of disability than their physical impairment. Despite this extremely
stressful process, psychological preparation is ironically often neglected in CABS couples.
The primary aim of the study was to examine the feasibility of hypnotherapeutic ego
strengthening (HES) to enhance the ability of CABS couples' to cope with psychological
distress associated with hospitalisation and surgery. Secondary aims were to determine the
contribution of HES in reducing anxiety and depression, as well as enhancing and
maintaining ego strength, quality of life and dispositional optimism in CABS patients and
spouses.
An overview of coronary heart disease (CHD), risk factors involved, psychological aspects
concomitant to CABS (specifically anxiety and depression) and a conceptualisation of
HES according to the relevant literature, preceded the empirical study.
The experimental design consisted of a two-group, pre-post-follow-up assessment design.
A sample of fifty married, male patients admitted to Unitas Hospital in Pretoria with a first,
uncomplicated CABS was randomly assigned, together with their spouses, to an
experimental- (n = 25) and control group (n = 25). Informed consent was obtained for all
project participants. Thus, both groups consisted of twenty-five patients and spouses. To
test the hypotheses, experimental patients and spouses were required to participate in the
HES intervention.
Respondents completed the Beck Depression Inventory (BDI-II) (Beck, Steer, & Brown,
1995). Profile of Mood States (POMS) (McNair, Lorr & Doppleman, 1992), Epstein and
O'Brien Ego Strength Scale (1982), Quality of Life Inventory (QOLI) (Frisch, 1994) as
well as the Life Orientation Test (LOT) (Scheier & Carver, 1985). Test administration of
couples occurred preoperatively, on the day of discharge, and at six-week follow-up.
Before commencing the intervention, group comparability was confirmed by means of the
t-test for independent groups. At programme completion the significance of differences
within and between groups was determined by means of t-tests. Statistically significant
p-values were subjected to Cohen's d statistic to determine the practical significance of the
findings. A confidence interval of 99% determined the values of the differences between
the postoperative and follow-up findings.
Results confirmed that the HES intervention significantly reduced postoperative anxiety
and depression levels in experimental CABS patients and spouses, which was maintained
at follow-up. No change was observed among control group patients and spouses.
Moreover, the HES intervention significantly improved and maintained postoperative ego
strength, quality of life and dispositional optimism in experimental CABS couples. The
overall outcome of the control patients and spouses revealed a decreasing trend with regard
to dispositional optimism and quality of life. Qualitative responses largely confirmed
quantitative indications of reduced comorbidity and enhanced psychological well-being
among experimental participants.
Despite design limitations, the results confirmed that HES enhanced CABS couples' inner
resources and attenuated concomitant negative mood states. Thus, it was concluded that
HES played a meaningful role in the preparation and care of CABS couples by reducing
comorbidity and improving their psychological well-being. Finally, recommendations for
further studies were made.Thesis (Ph.D. (Psychology))--North-West University, Potchefstroom Campus, 2004.
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Walker, Carolyn J. "An exploratory descriptive study of ego strength, self-esteem, and self-acceptance of cocaine addicted and non-drug dependent mothers." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 1991. http://digitalcommons.auctr.edu/dissertations/1161.
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This exploratory descriptive study examined variables which will help social workers to better understand cocaine addicted mothers. The following factors were identified:
(a) Ego Strength
(b) Self-Esteem
(c) Self-Acceptance.
A forty-six (46) item self-administered questionnaire was given to the sample population of thirty females ranging in age from eighteen to forty (18-40). Fifteen (15) of the cocaine addicted mothers were in treatment at a local metropolitan hospital; fifteen (15) of the non-drug dependent mothers were attending a local metropolitan college.
The findings revealed that there is no significant difference in the ego strength, self-esteem, and self acceptance of cocaine addicted mothers and non-drug dependent mothers.
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Akers, James F. "Similarities Within Adolescent Friendship Pairs: The Relationship Between the Strength and Qualities of Friendship and the Individuals' Ego Identity Development." DigitalCommons@USU, 1992. https://digitalcommons.usu.edu/etd/2530.
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Current theory and research have suggested that adolescent friends share many similarities which range from strong similarities in sociodemographic variables to weaker correlations for personality characteristics. The goal of this study was to advance the base of knowledge related to similarities between friends by exploring relationships between early adolescent ego identity status and friendship strength, quality, and duration. First, the objective measure of Ego Identity Status was used to test the hypothesis that early adolescents in reciprocally identified friendship pairs are more similar in their ego identity status; no such relationship was found. Second, a measure designed to assess friendship qualities/strengths and duration lead to the conclusion that the quality/strength and duration of a friendship was also not associated with identity similarities. In addition, in-depth interviews of a subsample confirmed the findings associated with the full sample paper-pencil measures. Based on these findings, it appears that these early adolescents select friends who are not likely to operate within similar identity statuses.
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Brink, André. "The relationship between three anxiety related clusters in projective drawings and anxiety and ego-strength scales of the Minnesota multiphasic personality inventory-2." Thesis, Rhodes University, 2002. http://hdl.handle.net/10962/d1002451.
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Based on the shortcomings of past research, the need for understanding and investigation of the general relationship between self-report measures and human figure drawings required understanding and investigation (Riethmiller & Handler, 1997b; Waehler, 1997) while utilising a quantitative, configural scoring approach. Riethmiller and Handler (1997a; 1997b) hypothesised that subjects have one of two typical approach styles to anxiety/stress that influences their execution of the Human Figure Drawing (HFD) Test: “Avoidance” or “Coping” as measured by composite scoring index clusters. They argue that these two approach styles had to be taken into account when investigating anxiety on the HFD Test. According to Handler and Reyher (1965) those who experience more intense anxiety typically rely on an “Avoidant” approach, while those with lower anxiety typically rely on a “Coping” approach. The “Coping” response is hypothesised to suggest good ego-strength, and the “Avoidant” response poor ego-strength. Handler and Reyher (1964; 1965; 1966) also argued that there are two sources of anxiety on projective drawings: internal and external sources of anxiety. They hypothesised that the “External” anxiety cluster (measured by utilising the car drawing) and self-report measures both assess ‘external’ anxiety. Using Handler’s (1967) HFD index scoring manual, this research therefore inve stigated the level of correlation of the two MMPI-2 anxiety scale scores with (a) the hypothesised Stress Approach HFD cluster scores, as well as with (b) the “External” anxiety cluster score, while the hypothesised Stress Approach HFD cluster scores were compared with the (c) MMPI-2 ego strength scale score. The results of the investigated relationships yielded non-significant correlations overall. The differences in nature of the two measurement instruments, and the potential weaknesses of this study, as two likely explanations for these correlations, are discussed. In the consideration of the differences of the two measurement instruments, the weaknesses of SR measures and criterion-related validity are discussed while self- attributed and implicit motives are contrasted with each other. Potential extraneous variables and possible truncated range are discussed as potential weaknesses of this study.
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Maurer, Martine. "Souffrance dépressive récurrente et fragilité bipolaire : mouvements régressifs et défaillance du contenant psychique : étude comparative au Rorschach et au Mmpi-2." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAG053.
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Notre étude démontre que les sujets dépressifs unipolaires et bipolaires, présentent une difficulté de régulation des flux excitatifs découlant de la défaillance de la fonction pare-excitative, nommée dans notre travail, « défaillance du contenant psychique ». Nous la mettons en relief à partir de la cotation de trente protocoles de Rorschach à l’aide d’un indice de régression, élaboré pour notre recherche. Nous réalisons, en complément, une étude prospective des notes T à trente échelles et sous-échelles du MMPI-2 de ces mêmes sujets. Nous y relevons certaines constantes en note T, caractérisant en fréquence cette population dépressive, dont une constante en note basse à l’échelle Force du Moi. Nous utilisons ces résultats cliniques pour argumenter l’intérêt d’une prise en charge thérapeutique à partir d’un dispositif basé sur un tissage de médiations groupales, comme voie de restauration du contenant psychique internalisé et de sa fonction pare-excitativeOur study demonstrates that unipolar and bipolar depressed subjects present a difficulty of excitement flows regulation, arising from the failure of the pare-excitations function, named in our research: "psychic container failure". We highlight this malfunction by the cotation of thirty Rorschach protocols, using a regression index, developed for our research. We carry out a prospective study in complementary from the notes of the scales and subscales of the Minnesota Multiphasic Personality Inventory 2 of these subjects. We identify the constants, low notes, and elevations, appearing frequently and significantly in this population, which is a constant low note to Ego Strength Scale. We use these results to point out the value of therapeutic support based on groupal mediations as way to restore the internalized psychic protective shield
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Mashegoane, Solomon. "Identity status development in the South African context : Relations with defenses, narcissism, parental attachment and ego strengths." Thesis, University of Limpopo (Turfloop Campus), 2012. http://hdl.handle.net/10386/839.
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Thesis (Ph.D. (Psychology)) -- University of Limpopo, 2012The identity status paradigm (ISP) is probably the most common theoretical model used to study identity development. It originates from Erikson’s (1950/1977) psychosocial theory, which, in turn, is historically rooted in the psychoanalytic perspective. The ISP postulates predictable relationships between each of the identity status categories and various intrapersonal and contextual variables. The applicability of the ISP in the South African context is tested in this study. A student sample was drawn from a predominantly African university, and was assessed for identity development over a period of three consecutive years (Ns = 394, 96 & 60, for years one, two and three, in that order). Participants were initially classified into the four identity status categories of Achievement, Moratorium, Foreclosure and Diffusion. The impact of gender and age on identity status development was investigated. The association between defenses and the identity statuses was also determined. Thereafter, identity statuses, in conjunction with defenses, narcissism, and parental attachment, were related to the ego strengths of Fidelity and Love. The results suggest that generally there is no relationship between the sets of variables in this particular sample. The results are discussed in relation to existing literature, and the issue of the appropriateness of the theory and/or the measures in the present sample is raised. Key terms: defense, ego strength, identity status, narcissism, parental attachment
the Norwegian Programme for Development, Research and Education (NUFU),
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Zilbauer, Matthias. "Determinants of international environmental cooperation does national ENGO strength foster a country's international environmental commitment? /." [S.l. : s.n.], 2005. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB12168080.
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Alipour, Alireza, and Mehdi Rahimpour. "Sustainability Barriers in SMEs : A study of strength of sustainability barriers and practical solutions in Green product lifecycle at SMEs." Thesis, Jönköping University, Internationella Handelshögskolan, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-50426.
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Background: Small and medium-sized firms (SMEs) have their impact on the environment besides their benefits. While a business grows, naturally destroying impacts are also growing. SMEs have a variety of barriers to be green and sustainable. There are some simple and non-complicated actions that firms can take, to reduce their destructive impacts on the environment. This study analyses the existing barriers and focuses on small and medium sizes firms (SMEs) around Jonkoping. Besides, this study includes interviews with successful and sustainable companies and reflects their solutions to overcome those barriers in a different step of the green product lifecycle. Purpose: This is a practical study of how sustainability process in SMEs can drive product lifecycle greener. The purpose of this thesis is to study the existing practical and simple solutions for different environmental sustainability barriers in SMEs which located in Jonkoping region. Also, it goals to reveal solutions which applies by sustainable businesses to overcome to the sustainability barriers. Method: To fulfil the purpose of the thesis, an experimental research design was applied, and the data was provided from in-depth, semi-structured interviews. Ten interviews were conducted with successful businesses in sustainability practice in the Jonkoping region. The data analysis for this study was created by an inductive approach. Conclusion: This study has revealed that the successful green businesses categorizing their barriers into general, segmental, and individual groups. After that, by evaluating the strength of obstacles in different steps of GPL and considering their available resources they plan to apply proper solution. The other main finding in this thesis was a practical framework according to what have been done in our research.
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Kelley, Angela Jean. "The effects of storage time on vitelline membrane protein banding patterns and interior egg quality of eggs from non-molted and molted hens." Texas A&M University, 2003. http://hdl.handle.net/1969.1/184.
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Vitelline membrane strength plays a role in preventing contamination of albumen by yolk during separation and is important to food safety. Two experiments were conducted to determine if a relationship exists between vitelline membrane protein banding patterns, interior egg quality, and vitelline membrane rupture strength. Eggs were gathered from commercial egg producers from pre-molt (26 wk or 72 wk) and post-molted (74 wk or 82 wk) hens. In each of two trials twenty-one eggs were gathered and stored (4°C) per experiment. Three eggs were evaluated on days 0, 7, 14, 21, 28, 35, and 42 for eggs from pre-molted hens; and 1, 7, 14, 21, 28, 35, and 42 for eggs from molted hens for changes in SDS-PAGE protein banding patterns. The yolk from each egg was isolated and rolled on a wet paper towel to remove adhering albumen. The yolk was emptied and washed. The whole membrane was placed into double deionized water and divided into two sections. The first section was the whole membrane sample and the other was separated by forceps into inner and outer membrane samples. The three sections were dissolved separately in 1% SDS/70 mM Tris/HCl, pH 6.8. Protein concentration was determined using the Lowry method and proteins separated on 4-20% gradient gel by SDS-PAGE. Protein banding patterns were analyzed using the Bio-Rad Multi-Analyst Densitometer. Reductions of VMO I and GP II occurred along with reductions in the protein bands between 60 to 100 kDa.
In each of two trials, an additional one hundred forty eggs were gathered at the same time from the same flock and stored at 4°C. Twenty eggs were evaluated for quality on days 0, 7, 14, 21, 28, 35, and 42 for eggs from pre-molted hens; and 1, 7, 14, 21, 28, 35, and 42 for eggs from molted hens. Yolk index, albumen height, albumen pH, and yolk pH were determined. Vitelline membrane strength was determined using a compression anvil. Two different treatments were used on the yolk when evaluating rupture strength: 10 egg yolks with inner thin albumen layer, and 10 egg yolks rolled on wet paper towel to remove inner thin albumen layer. Interior egg quality and vitelline membrane strength declined during storage.
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Caudill, Amber Brooke. "Effects of cool water washing of shell eggs on Haugh unit, vitelline membrane strength, aerobic bacteria, yeast, and mold." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Fall%20Theses/Caudill_Amber_2.pdf.
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Madenci, Dilek. "Study of the aggregation behaviour of egg yolk lecithin/bile salt mixtures by increasing the ionic strength." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/4918.
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This thesis describes a study of the aggregational behaviour of egg yolk lecithin (EYL), a natural lecithin, and bile salt mixtures especially with respect to an increase of the ionic strength of the solvent. Mixtures of two amphiphiles with very different spontaneous curvature as EYL lecithin and bile salt form mixed micelles and vesicles in aqueous solution. Their properties have been well-studied under physiological conditions, i.e. 150 mM electrolyte concentration and pH 7- 8, while other conditions are still hardly explored. Upon increasing ionic strength the formed structures and the transitional pathways (micelles, coexistence of micelles and vesicles, and vesicles) change the generated structures completely from those observed under physiological conditions. We quantitatively determined these structures formed in a broad range of electrolyte concentrations with various scattering techniques, x-ray, light and neutron scattering and calorimetry. With calorimetry, phase diagrams in the EYL and bile salt concentration phase plane were determined at various ionic strength ranging from physiological salt concentration to up to 1000 mM. Additionally a new electrochemical approach using functionalised electrodes, i.e. sensitive and selective to bile salt, and thus to control the bile salt concentration in solution (concentrations below the critical micellar concentration (cmc)) was attempted, since bile salt removal or injection drives the micelle-to-vesicle or the vesicle-to-micelle transition, respectively, of the mixed aggregational system of EYL/bile salt. Although this control was not achieved within the framework of this thesis, promising results show directions for future experiments.
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Gervais, Olivier. "Effects of Long-Term Selection for Non-Destructive Deformation in White Leghorns." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/217200.
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Jones, Landon R. "Calcium dynamics affecting egg production, skeletal integrity, and egg coloration in ring-necked pheasants Phasianus colchicus /." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2211.pdf.
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Choudhury, Dipak. "Eco-systemic factors that strengthen the educational inclusion of young carers with additional needs." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8248/.
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The Children and Families Act 2014 defines a young carer as anyone under the age of 18 years old who provides, or intends to provide, care for another person of any age. The literature has empirically and anecdotally identified that young carers are a population more vulnerable to poorer outcomes in educational attainment, employment opportunities, and psychological wellbeing. (Becker and Becker, 2008; Warren, 2007; Lloyd, 2010). This thesis is an account of real-world research drawing on qualitative research methods such as semi-structured interviews to gather the views and perspectives of young carers; young carer project workers; and safeguarding and student welfare officers to identify the systemic factors (Bronfrenbrenner, 1979; 2001) that strengthen the educational inclusion of young carers with additional needs. Findings suggest the important factors at different systemic levels around the carer, such as the role of the key person within the educational setting, the role of external support and social support in strengthening a young carers inclusion in their educational setting. The implications arising from the findings are also discussed, in relation to the role of local authority services and, specifically the role of the educational psychologist.
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Okeyinka, Oriyomi M. "The applicability of recycled waste paper as lightweight building materials." Thesis, University of Wolverhampton, 2016. http://hdl.handle.net/2436/620495.
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In this era of increasing standard of living and rapid growth of civil engineering construction, environmental issues pertaining to natural resources depletion, global warming, energy crisis, waste pollution and greenhouse gas emission have been major issues of concern throughout the world and most especially in the construction industry. This research was conducted to investigate the applicability of recycled wastepaper as lightweight building materials with focus on contributing to sustainability in the creation of the built environment. The major aim was to develop an eco-friendly lightweight non-loadbearing block from recycled wastepaper without the use of cement as binder. This study specifically addressed the drawback of low strength development that usually occur with increasing wastepaper content in the existing cement-based-wastepaper blocks. It also indirectly addresses; the environmental impacts associated with the construction industry (including; high consumption of natural resources, greenhouse gas emission, high energy consumption and so on), the environmental pollution resulting from unsustainable waste generation, and the generic drawback of high water absorption that plagues wastepaper-based blocks. To achieve this, research methods including; laboratory experimentation and simulation modelling were employed. The research outcome is an eco-friendly block unit designated as Cement-less Wastepaper-based Lightweight Block (CWLB) which contains 75% waste content and exhibiting properties that satisfy the requirements for application as non-loadbearing lightweight blocks in building construction. CWLB displayed compressive strength that far outweighs those recorded for the existing cement-based wastepaper blocks available in the literature. The properties recorded for the optimal CWLB includes; 2.71 MPa average compressive strength, 901.5 kg/m3 average density, 0.19 W/m.k thermal conductivity, 989.9 m/s ultrasonic pulse velocity, 0.0026 g/m2.S0.5 average coefficient of capillary water absorption and 883.38 MPa estimated elastic modulus. The approximate compressive strength of 2.38 MPa and 1.58 MPa were respectively predicted and recorded for the solid and hollow finite element model samples of CWLB. The impressive satisfactory properties of CWLB for the intended application and its eco-friendliness in terms of natural resources conservation and improved compressive strength suggests that CWLB shall indeed serve as a more sustainable alternative to the reigning/existing cement-based-wastepaper blocks and to the conventional masonry blocks of the same category. Amongst other things, future work will address the validation of the approximate compressive strength predicted for the solid and hollow CWLB insitu samples in order to take further the subject matter.
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Huapaya, Tenazoa Diego Andrés, and Farromeque Joffrey Itamar Valdivia. "Uso del residuo de vidrio pulverizado como adición en la elaboración de concreto ecológico." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/626061.
Full textAbstract:
La cantidad de residuos se ha incrementado con el paso del tiempo, siendo actualmente una amenaza grave para el medio ambiente; tal es el caso del vidrio plano, el cual genera cantidades considerables de merma poco reutilizables en su producción. Esto ha generado que sus residuos reciban una mayor atención por las autoridades e investigadores a nivel global en los últimos años, proponiéndose usos respetuosos que contribuyan hacia un entorno más sostenible. Este estudio profundiza en la utilización del residuo de vidrio plano para la reducción de su merma y lo propone como una solución en la elaboración de un concreto ecológico, al ser incluido de forma pulverizada como adición en el concreto. Para ello, se hicieron diferentes diseños de mezcla con porcentajes variables de vidrio plano pulverizado, realizándose comparaciones con respecto a un concreto patrón para identificar su efecto en las propiedades del concreto; evaluándose los ensayos de asentamiento, resistencia a la compresión y resistencia a la compresión en condiciones de ataque por sulfatos. Los resultados muestran que la adición de vidrio plano pulverizado contribuye a la mejora del asentamiento, la resistencia a la compresión y la resistencia a la compresión en condiciones de ataque por sulfatos; y también, presenta un ahorro económico con respecto al concreto patrón.The amount of waste has increased over time, currently being a serious threat to the environment. Such is the case of flat glass, which generates considerable quantities of waste that are not reusable in the production. This has generated that its residues receive a greater attention by the authorities and researchers to global level in the last years, proposing respectful uses that contribute towards a more sustainable surroundings. This study deepens in the use of the flat glass waste to reduce its shrinkage and proposes it as a solution in the elaboration of an ecological concrete. For this, different mixing designs were made with varying percentages of flat sprayed glass, making comparisons with respect to a concrete pattern to identify its effect on concrete properties; evaluated by slump tests, compressive strength and compressive strength in sulfate attack conditions. The results show that, the addition of pulverized flat glass contributes to the improvement of slump, compressive strength and compressive strength under sulphate attack conditions; and it presents an economic saving with respect to the reference concrete.
Trabajo de investigación
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Xavier, Regina PatrÃcia de Souza. "Granulometria do calcÃrio para podeiras comerciais submetidas ou nÃo à iluminaÃÃo artificial." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12109.
Full textAbstract:
FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgicoThe experiment was conducted to evaluate the effects of particle size of the limestone and the use of artificial light on feeding behavior, performance, egg quality and bone of laying hens. A total of 300 Hisex White hens at 18 weeks of age, distributed in a completely randomized design in factorial 5 x 2, with 5 replicates of 6 birds. The factors studied were 5 granulometries obtained by increasing the proportion of coarse limestone (0, 25, 50, 75 and 100%) compared to 2 types of thin and light, with and without artificial light. No significant interaction between factors (size x lighting program) for all parameters evaluated on performance, egg quality and bone. There was also no significant effect on the level of coarse limestone in diets on performance and egg quality, however had an effect on bone quality. Among the light programs, showed that the use of artificial light showed eggs with higher Haugh Units compared to birds that received only natural light. With respect to feeding behavior no significant interaction between factors limestone, light and time. However, significant effects of the interaction (light and time), there was a higher consumption in birds without artificial light in relation to artificial light during the hours of 6am to 9h40min and 12:40 to 17:40 and the interaction effect (limestone and time) , it was observed that at the time of 6am to 9h40min, increased consumption, corresponded to the gradual increase in the ration of coarse limestone. For laying hens in the first laying cycle, created in geographic coordinates that developed in the research, changes in particle size of limestone provided an improvement in bone quality of the birds and the use of artificial light may favor albumen quality as Haugh unit.
O experimento foi realizado com o objetivo de avaliar os efeitos da granulometria do calcÃrio e do uso da luz artificial sobre o comportamento alimentar, desempenho, qualidade do ovo e Ãssea de poedeiras comerciais. Foram utilizadas 300 poedeiras Hisex White com 18 semanas de idade, distribuÃdas em um delineamento inteiramente casualizado, em esquema fatorial 5 x 2, com 5 repetiÃÃes de 6 aves. Os fatores estudados foram 5 granulometrias obtidas pelo aumento da proporÃÃo de calcÃrio grosso (0, 25, 50, 75 e 100%) em relaÃÃo ao fino e 2 tipos de iluminaÃÃo, com e sem luz artificial. NÃo houve interaÃÃo significativa entre os fatores (granulometria x programa de luz) para os parÃmetros avaliados sobre desempenho, qualidade do ovo e Ãssea. TambÃm nÃo houve efeito significativo do nÃvel de calcÃrio grosso na raÃÃo sobre o desempenho e qualidade do ovo, entretanto apresentou efeito sobre a qualidade Ãssea. Entre os programas de luz, observou-se que o uso de luz artificial apresentou ovos com maiores valores de unidade Haugh em relaÃÃo Ãs aves que receberam apenas luz natural. Com relaÃÃo ao comportamento alimentar nÃo houve interaÃÃo significativa entre os fatores calcÃrio, luz e horÃrio. Contudo, houve efeito significativo entre a interaÃÃo (luz e horÃrio), observou-se um maior consumo nas aves sem luz artificial em relaÃÃo aos com luz artificial nos horÃrios de 6h Ãs 9h40min e 12h40min Ãs 17h40min e efeito na interaÃÃo (calcÃrio e horÃrio), observou-se que no horÃrio de 6h Ãs 9h40min, o aumento do consumo, correspondeu ao aumento gradativo do calcÃrio grosso na raÃÃo. Para poedeiras comerciais no primeiro ciclo de postura, criadas nas coordenadas geogrÃficas em que se desenvolveu a pesquisa, as mudanÃas na granulometria do calcÃrio proporcionou uma melhora na qualidade Ãssea das aves e a utilizaÃÃo da luz artificial pode favorecer a qualidade do albÃmen medida em unidade Haugh.
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Hill, Crystal Renee. "Effects of family routines and family stress on child competencies." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4142.
Full textAbstract:
The current study had two purposes. The first purpose was to examine the
association between family rules and routines and first grade children's teacher-rated and
peer-rated behavioral competencies (e.g., emotional symptoms, conduct problems, peer
problems, hyperactivity, and prosocial behavior) after controlling for both family
stressors (i.e., single parent home, mobility, socioeconomic status, property ownership)
and child ethnicity (African American, Caucasian, Hispanic). The second purpose was to
determine if child regulatory control abilities mediates the effects of family rules and
routines and children's behavioral competencies.
The parents of 215 ethnically diverse children (38%, Caucasian, 22% African
American, 33% Hispanic, 7% Other) were interviewed in their homes with a modified
and shortened version of Family Routines Inventory (FRI; Jensen, James, Boyce, &
Hartnett, 1983). Teachers completed the Strengths and Difficulties Questionnaire (SDQ;
Goodman, 1997), and peers completed a modified version of the Class Play (Masten,
Morison & Pelligrini, 1985). Scores from the SDQ were standardized and combined
with the standardized scores obtained from the peer nominations to create composites of the behavioral competencies. Additionally, teachers completed a modified version of the
California Child Q-set (CCQ) (Block & Block, 1980) as a measure of these children's
regulatory control abilities.
African American parents' ratings of their family's rules and routines were
higher than those of Hispanic and Caucasian parents' ratings. Additionally, family
stressors were positively associated with higher teacher and peer ratings of conduct
problems and lower ratings of prosocial behavior. Neither ethnicity nor family rules and
routines predicted child competencies. A statistically significant curvilinear relationship
was found between family rules and routines and conduct problems such that children of
parents reporting the highest and lowest levels of family rules and routines have more
conduct problems. No associations were found between family rules and routines and
child competencies or children's regulatory control abilities. Limitations of the study are
discussed in terms of inadequate measurement of family rules and routines, a defensive
response set, self-selection on the part of the parents to participate in the interview, and a
sample that is not representative of the community of parents and children in the
participating schools.
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Xavier, Regina Patrícia de Souza. "Granulometria do calcário para podeiras comerciais submetidas ou não á iluminação artificial." reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/14123.
Full textAbstract:
XAVIER, R. P. S. Granulometria do calcário para podeiras comerciais submetidas ou não á iluminação artificial. 2013. 50 f. Dissertação (Mestrado em Zootecnia) - Centro de Ciências Agrárias, Universidade Federal do Ceará, Fortaleza, 2013.Submitted by Daniel Eduardo Alencar da Silva (dealencar.silva@gmail.com) on 2015-01-14T19:05:48Z No. of bitstreams: 1 2013_dis_rpsxavier.pdf: 489341 bytes, checksum: 41b075add288fff4301df196cba6837d (MD5)
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The experiment was conducted to evaluate the effects of particle size of the limestone and the use of artificial light on feeding behavior, performance, egg quality and bone of laying hens. A total of 300 Hisex White hens at 18 weeks of age, distributed in a completely randomized design in factorial 5 x 2, with 5 replicates of 6 birds. The factors studied were 5 granulometries obtained by increasing the proportion of coarse limestone (0, 25, 50, 75 and 100%) compared to 2 types of thin and light, with and without artificial light. No significant interaction between factors (size x lighting program) for all parameters evaluated on performance, egg quality and bone. There was also no significant effect on the level of coarse limestone in diets on performance and egg quality, however had an effect on bone quality. Among the light programs, showed that the use of artificial light showed eggs with higher Haugh Units compared to birds that received only natural light. With respect to feeding behavior no significant interaction between factors limestone, light and time. However, significant effects of the interaction (light and time), there was a higher consumption in birds without artificial light in relation to artificial light during the hours of 6am to 9h40min and 12:40 to 17:40 and the interaction effect (limestone and time) , it was observed that at the time of 6am to 9h40min, increased consumption, corresponded to the gradual increase in the ration of coarse limestone. For laying hens in the first laying cycle, created in geographic coordinates that developed in the research, changes in particle size of limestone provided an improvement in bone quality of the birds and the use of artificial light may favor albumen quality as Haugh unit.
O experimento foi realizado com o objetivo de avaliar os efeitos da granulometria do calcário e do uso da luz artificial sobre o comportamento alimentar, desempenho, qualidade do ovo e óssea de poedeiras comerciais. Foram utilizadas 300 poedeiras Hisex White com 18 semanas de idade, distribuídas em um delineamento inteiramente casualizado, em esquema fatorial 5 x 2, com 5 repetições de 6 aves. Os fatores estudados foram 5 granulometrias obtidas pelo aumento da proporção de calcário grosso (0, 25, 50, 75 e 100%) em relação ao fino e 2 tipos de iluminação, com e sem luz artificial. Não houve interação significativa entre os fatores (granulometria x programa de luz) para os parâmetros avaliados sobre desempenho, qualidade do ovo e óssea. Também não houve efeito significativo do nível de calcário grosso na ração sobre o desempenho e qualidade do ovo, entretanto apresentou efeito sobre a qualidade óssea. Entre os programas de luz, observou-se que o uso de luz artificial apresentou ovos com maiores valores de unidade Haugh em relação às aves que receberam apenas luz natural. Com relação ao comportamento alimentar não houve interação significativa entre os fatores calcário, luz e horário. Contudo, houve efeito significativo entre a interação (luz e horário), observou-se um maior consumo nas aves sem luz artificial em relação aos com luz artificial nos horários de 6h às 9h40min e 12h40min às 17h40min e efeito na interação (calcário e horário), observou-se que no horário de 6h às 9h40min, o aumento do consumo, correspondeu ao aumento gradativo do calcário grosso na ração. Para poedeiras comerciais no primeiro ciclo de postura, criadas nas coordenadas geográficas em que se desenvolveu a pesquisa, as mudanças na granulometria do calcário proporcionou uma melhora na qualidade óssea das aves e a utilização da luz artificial pode favorecer a qualidade do albúmen medida em unidade Haugh.
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Ghestem, Murielle. "Quelles propriétés racinaires et quelles espèces-outils pour la stabilisation des points chauds de dégradation en Chine du Sud ?" Phd thesis, AgroParisTech, 2012. http://pastel.archives-ouvertes.fr/pastel-00855792.
Full textAbstract:
La Chine est actuellement confrontée à de sérieux problèmes environnementaux et est listée parmi les pays qui contribuent le plus à la pollution et à la destruction de l'environnement mondial. En particulier, la Chine du Sud est une zone naturellement sujette aux glissements de terrain à cause de conditions tectoniques, climatiques et anthropiques particulièrement défavorables. Depuis la fin des années 1990, l'Etat chinois a mis en place des politiques de reforestation de grande envergure. mais il existe des lacunes de connaissances qu'il convient de combler. En particulier, le choix des espèces les plus adaptées n'est pas aisé parce que les processus par lesquels les plantes stabilisent les pentes ont besoin d'être mieux compris.En introduction, afin de mieux préciser les périmètres qui cadrent cette thèse, sont présentées la situation de la Chine du Sud au regard des glissements de terrain, la discipline d'éco-ingénierie et les solutions qu'elle peut apporter. Ainsi, ce travail (i) se concentre sur des espèces végétales locales, (ii) se limite aux glissements de terrain superficiels, et (iii) concerne à la fois les processus mécaniques et hydriques entre le sol et les racines. A l'intérieur de ces cadres, la thèse a pour objectif de répondre à la question scientifique : quels sont les propriétés racinaires qui influencent la stabilisation des pentes ? La réflexion est ensuite appliquée aux plantes de Chine du Sud afin d'identifier les meilleures espèces-outils. Pour répondre à cette question, à la fois les données de terrain (en Chine du Sud), les expériences de laboratoire (en France) et la formulation de concepts sont mobilisées. Les résultats sont organisés en deux chapitres. Le premier pose la question de l'efficacité de la présence de racines pour stabiliser les pentes, tous d'abord sous l'angle des processus mécaniques, puis sous l'angle des processus hydriques. Le deuxième chapitre permet d'identifier un panel de traits pertinents et non redondants évaluant l'efficacité d'une espèce pour la stabilisation des pentes puis s'appuie sur ce panel afin de sélectionner les espèces chinoises les plus efficaces. Enfin, la discussion aborde les limites de ce travail et propose de nouvelles pistes de recherche.Du point de vue mécanique comme du point de vue hydrique, c'est la conjonction des effets des racines de structure et des racines fines qui importe. Les racines de structure sanas racines fines ne sont pas optimales et peuvent même faire apparaître des lignes de fragilité. Plus précisément, les racines de structure sont particulièrement bienvenues vers l'aval de la pente pour des raisons à la fois mécaniques et hydriques. Les racines fines seules ne sont pas optimales non plus, elles peuvent faire apparaître localement des zones de faiblesse qui, si elles sont proches, participeront au déclenchement d'un glissement de terrain. Des ramifications racinaires denses améliorent la stabilité mécanique. Orientées vers l'aval de la pente, elles améliorent la stabilité hydrique. Les autres traits racinaires pertinents pour évaluer l'efficacité des racines à stabiliser le sol sont la contrainte et la déformation maximale en tension, la concentration en azote et la concentration en sucres solubles.
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Hart, M. J. Alexandra. "Action in Chronic Fatigue Syndrome: an Enactive Psycho-phenomenological and Semiotic Analysis of Thirty New Zealand Women's Experiences of Suffering and Recovery." Thesis, University of Canterbury. Social and Political Sciences, 2010. http://hdl.handle.net/10092/5294.
Full textAbstract:
This research into Chronic Fatigue Syndrome (CFS) presents the results of 60 first-person psycho-phenomenological interviews with 30 New Zealand women. The participants were recruited from the Canterbury and Wellington regions, 10 had recovered. Taking a non-dual, non-reductive embodied approach, the phenomenological data was analysed semiotically, using a graph-theoretical cluster analysis to elucidate the large number of resulting categories, and interpreted through the enactive approach to cognitive science.
The initial result of the analysis is a comprehensive exploration of the experience of CFS which develops subject-specific categories of experience and explores the relation of the illness to universal categories of experience, including self, ‘energy’, action, and being-able-to-do.
Transformations of the self surrounding being-able-to-do and not-being-able-to-do were shown to elucidate the illness process.
It is proposed that the concept ‘energy’ in the participants’ discourse is equivalent to the Mahayana Buddhist concept of ‘contact’. This characterises CFS as a breakdown of contact. Narrative content from the recovered interviewees reflects a reestablishment of contact.
The hypothesis that CFS is a disorder of action is investigated in detail.
A general model for the phenomenology and functional architecture of action is proposed. This model is a recursive loop involving felt meaning, contact, action, and perception and appears to be phenomenologically supported.
It is proposed that the CFS illness process is a dynamical decompensation of the subject’s action loop caused by a breakdown in the process of contact.
On this basis, a new interpretation of neurological findings in relation to CFS becomes possible. A neurological phenomenon that correlates with the illness and involves a brain region that has a similar structure to the action model’s recursive loop is identified in previous research results and compared with the action model and the results of this research. This correspondence may identify the brain regions involved in the illness process, which may provide an objective diagnostic test for the condition and approaches to treatment.
The implications of this model for cognitive science and CFS should be investigated through neurophenomenological research since the model stands to shed considerable light on the nature of consciousness, contact and agency.
Phenomenologically based treatments are proposed, along with suggestions for future research on CFS. The research may clarify the diagnostic criteria for CFS and guide management and treatment programmes, particularly multidimensional and interdisciplinary approaches.
Category theory is proposed as a foundation for a mathematisation of phenomenology.
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Schneider, Vera. "The relationship between masculanity, body image and ego strength in male university students." Thesis, 2006. http://hdl.handle.net/10539/1773.
Full textAbstract:
Student Number : 9901978A -
MA research report -
School of Human and Community Development -
Faculty of HumanitiesThis research explored the relationship between gender identity, body image and ego strength in men. A questionnaire consisting of a demographic section, the Bem Sex Role Inventory, the Adonis Complex Questionnaire- Revised, and the Psychosocial Inventory of Ego Strength was administered to 74 male students from the School of Actuarial Science and Statistics at the University of the Witwatersrand during lecture time. Correlation analyses were used to infer the relationships between the three variables, while a multiple regression assessed whether particular combinations of gender identity and ego strength could predict higher body image dissatisfaction. The results showed that both masculinity and androgyny had a positive effect on body image satisfaction, as did higher ego strength. The latter was also positively correlated with both femininity and masculinity, though not with androgyny. Body image disturbance did not correlate with any dimension of gender identity or ego strength. With regard to the interaction between the variables, higher ego strength was found to have a moderating effect on body image dissatisfaction in men who endorsed femininity, but not with men who endorsed masculinity. An androgynous orientation further predicted lower body image dissatisfaction irrespective of the degree of ego strength. Limitations of the study and recommendations for future research are discussed.
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Tzyh-Chyang, Jenq, and 鄭自薔. "A study of Moral judgment,Ego-strength,and Locus of control among Taipei High school students." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/72697017271079895246.
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Lees, Dominic A. "Towards a motivational alternative to the strength model of self-control." Thesis, 2016. http://hdl.handle.net/1959.7/uws:41422.
Full textAbstract:
Self-control is an area of research that has received increased attention over the last couple of decades. Failures of self-control, in particular, are held to be the underlying cause of a number of societal ills. The strength model of self-control (Baumeister, Bratslavsky, Muraven, & Tice, 1998) purports to explain failures of self-control through the use of a limited resource model. According to the model, initial acts of self-control draw upon a resource, temporarily depleting it and making subsequent self-control acts more likely to fail – a process known as ego depletion. Although the model has inspired a great deal of research, researchers have begun to question both the model itself (e.g., Inzlicht & Schmeichel, 2012), and the research findings that it has generated (e.g., Carter & McCullough, 2013). The current project argues that the strength model suffers from conceptual confusions that render the model untenable, necessitating its replacement with an alternative. A reconceptualisation of drive theory (Maze, 1983), in concert with the process model (Inzlicht & Schmeichel, 2012), is offered as a deterministic framework through which to reinterpret existing findings. In light of suggestions that the ego depletion effect has been overstated, this project also aimed to investigate whether and under what conditions the ego depletion effect could be produced. Three experiments were performed, manipulating both the difficulty and length of the initial self-control task, using common strength model tasks. For all three experiments it was hypothesised that there would be an ego depletion effect, and that the magnitude of the effect would vary as a function of time and difficulty of the initial task. In all three experiments the hypothesis was not supported. There is a shift in current psychological science to recognise the importance of replications and null results; it is in this light that the findings are discussed. The future of self-control research is discussed in light of the null results, and the reconceptualisation of self-control provided by drive theory.
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Lan, Yuan Shan, and 藍元杉. "The Research of Experiential Education Approach with Group Work to improve the Ego Strength of Social Worker." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/86668923805129350012.
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盧政吉. "The Study on the Relationships among Elementary School Teachers’ Professional Moral Reasoning, Ego-Strength and Professional Moral Behavior." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/87416989714779909614.
Full textAbstract:
碩士國立屏東師範學院
教育心理與輔導研究所
90
The main purpose of this study is to investigate the relationships between professional moral behavior and correlation variables of elementary school teachers. To fulfill the purpose, 348 elementary school teachers were sampled. Data gathered from samples were then analyzed through factor, t-test, ANOVA, MANOVA, Pearson product— moment correlation, canonical correlation, and multiple regression analysis. The major findings are listed below: 1. There isn’t a significant difference in gender, age and degree educational between professional moral reasoning. 2. There is a significant difference in gender between ego- strength and stimulus enduring ability. 3. There is a significant difference in age and degree educational between ego-strength and problem-solving ability. 4. There is a significant difference in gender between the totality of professional moral behavior, behavior to students, behavior to parents, behavior of uphold principles, behavior to crew, behavior to teaching. 5. There is a significant difference in age between professional moral behavior, behavior to students, behavior of uphold principles, behavior to teaching, behavior to society. 6. There isn’t a significant difference in degree educational between professional moral behavior. 7.There is a significant difference in ego-strength and problem-solving ability among elementary school teachers of different degree professional moral reasoning. 8. There is a significant difference in professional moral behavior and the behavior of uphold principles among elementary school teachers of different degree professional moral reasoning. 9.Ego-strength is significant canonical correlation with professional moral behavior. 10. 41﹪variance in professional moral behavior can be predicted through gender, age and problem-solving ability. The findings were discussed. Suggestions for education practices and future studies were also discussed. Keywords: moral reasoning, ego-strength, problem-solving ability, stimulus enduring ability, moral behavior
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Lin, Hsing-Chen, and 林杏真. "A study of development and relationships among life stress, social support and ego-strength for self-injured adolescents." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/54885588238868048571.
Full textAbstract:
碩士國立臺灣師範大學
教育心理與輔導研究所
90
The purposes of this study were : (1) to investigate the differences among life stress, social support and ego-strength between self-injurious experienced and unexperienced adolescents, (2) to predict self-injurious behavior according to life stress, social support and ego-strength, (3) to explore the cognitive process and subjective experiences of self-injured adolescents by interviewing. In this study, four instruments such as “Life Stress Scales”, “Social Support Scales”, “Ego-Strength Scales” and “Self-Injurious Behavior Scales” were adopted to survey 401 junior high school students. The gathering data were analyzed by t-test and logistic regression analysis methods. Furthermore, 18 adolescents who had self-injured were interviewed for qualitative analysis. The main findings were as follows: 1. According to life stress aspects, there are significant differences between self-injurious experienced and unexperienced adolescents in “family events” and “interpersonal events” , but not in “school events” and “psychophysical developmental events”. 2. According to social support aspects , there are significant differences between self-injurious experienced and unexperienced adolescents in “parent support”, “teacher support”, “classmates support”, “emotion support”, “tangible support” and “information support”. 3. According to ego-strength aspects, there are significant differences between self-injurious experienced and unexperienced adolescents in “self-esteem”, “frustration tolerance” and “locus of control”, but not in “risk- taking”. 4. Social support and ego-strength could significantly predict the self-injurious behaviors of adolescents. 5. According to the inside and subjective experience of self-injured adolescents, the results were as follows: (1)The self-injured adolescents have worse relationship with their parents, teachers and classmates. (2)“Stress of schoolwork” and “family problems” are the main life stress events for self-injured adolescents, they seldom ask their parents and teachers for help when facing stress. (3)The self-injured adolescents always have lower “self-esteem”, no confidence, negative attitude and are not satisfied with their academic achievment. (4)The meaning of self-injurious behavior for adolescents is self-injuring but not suiciding. The purpose of such self-injurious behavior is just to gain attentions from other people, or punish themselves and curiosity only. (5)The primary reasons for adolescents not to self-injure again are gaining support from others, increasing of ego-strength and releasing of stress. Based upon the above mentioned results, discussions and suggestions were presented.
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Fourie, Aletta Elizabeth. "Discovering the essential self by means of subconscious resources : a psycho-educational approach." Thesis, 2008. http://hdl.handle.net/10500/2124.
Full textAbstract:
Clients embark in therapy for different reasons and they often do not understand their own behaviour, thoughts and feelings. Some state that they do not feel themselves and ask questions about who they really are. This study explores different therapeutic ways in assisting clients to find answers to this question.
The researcher indicates that the self is an energy system which can be in dissonance. It explores the subconscious as a resource that can be utilized in therapy, assisting clients to discover their essential selves. The study uses an eclectic approach, where the Medical Hypnoanalysis Model is used to identify aspects with regards to the self being dissonant. It is indicated how the hypnotherapeutic techniques within Ego-state therapy and Ericksonian psychotherapy contribute to the exploration of the subconscious and its resources. The study utilizes subconscious resources to assist clients to become more aware of their essential selves and to activate the process of self-actualization. From theory the study constructed a new eclectic approach in assisting clients to discover their essential selves through their subconscious resources. This proves to be of value in approaching therapy from a psycho-educational perspective. The therapeutic process of identifying and accessing subconscious resources takes place within the framework of the SARI-model (a model within the Ego-state therapy theory).
This study presents four case studies and discusses information that can be gained from the subconscious mind of the client and its utilization in therapy. The cases illustrate that the subconscious has the resources available to assist in the identification of the cause of the problem, inner-strengths, a subconscious safe place and possible solutions to the problem. It was indicated that these resources can be used to integrate trauma from the past, resolve negative beliefs and to enhance the establishment of equilibrium within the self as energy system, which leads to the client discovering and becoming the essential self.
The study concludes with a model that can be used to discover the essential self by means of subconscious resources in addressing client's fundamental question of `Who am I really?'Educational Studies
D. Ed. (Psychology of Education)
38
Nel, Renche. "Die ontwikkeling en evaluasie van 'n sensitiseringshulpmiddel vir opvoeders in gesonde persoonlikheidsfunksionering (Afrikaans)." Thesis, 1999. http://hdl.handle.net/2263/22757.
Full textAbstract:
AFRIKAANS: Die doel van hierdie studie was om 'n sensitiseringshulpmiddel oor gesonde persoonlikheidsfunksionering te ontwikkel. Dit kan dien as 'n hulpmiddel vir opvoeders wat dit kan aanwend as deel van hul opvoedkundige kennis. Die vaardighede wat hierdie hulpmiddel onderskryf, is daarop gerig om gesonde persoonlikheidsfunksionering te bevorder. Die denkraamwerk van waaruit die navorsers gewerk het, was idealisties interpreterend met realisasie in die sisteemteorie. Die keuse van die denkraamwerk was gebaseer op die feit dat persoonlikheidsfunksionering oor die algemeen as multi-dimensioneel beskou word, asook dat persone voortdurend in interaksie is met ander persone. Mense funksioneer ook in veranderlike situasies en kontekste. Twee persoonlikheidskonstrukte naamlik Lokus van Kontrole en Egosterkte is akademies ontleed en die resultate hiervan is geïntegreer. Alhoewel die keuse van die twee konstrukte arbitrêr was, was dit geregverdig op grond van praktykondervinding, uitgesproke behoeftes van ander opvoeders en die klem wat tans akademies op die twee konstrukte geplaas word. Die totale studie soos uiteengesit in twee volumes (Deel I en Deel II) soos onderskeidelik gefinaliseer deur die navorsers, 1. De Beer en R. Nel, was deurlopend gerig deur drie vlakke van data-ontleding. Op die eerste-orde-ontledingsvlak is die bestaande literatuur oor die twee konstrukte geëkstrapoleer. Die inligting is geïntegreer en 'n konsephulpmiddel is hieruit ontwikkel. Hierdie ontwikkeling het plaasgevind deur patroonkategorieë te skep met behulp van tweede-orde-ontleding. Die konsephulpmiddel het bestaan uit 'n gestruktureerde deel (vyf-puntskaal) en 'n semi-gestruktureerde deel (bydraes wat respondente spontaan moes genereer). Die konsephulpmiddel is aangebied aan 'n geselekteerde steekproef van 32 opvoeders naamlik ouers, onderwysers en sielkundiges. Die opvoeders het die hulpmiddel geëvalueer en ook hulle eie idees weergegee. Inligting wat hieruit verkry is, is in fokusgroepsessies bespreek en verfyn. Die data wat hieruit verkry is, is kwalitatief ontleed, statisties verwerk, geïntegreer en as 'n konsephulpmiddel ontwikkel. Die konsephulpmiddel is deur opvoeders in die praktyk geëvalueer. Die finale hulpmiddel is in gebruikersvriendelike taal en vorm saamgestel. Hierna is die hulpmiddel teruggekoppel na die oorspronklike konstrukte waaruit dit ontwikkel is. Laastens is die studie en die hulpmiddel konseptueel in terme van die huidige stand van die sielkunde, asook binne die groter konteks van Suid-Afrika bespreek. Verskeie aanbevelings vir verdere navorsing is gemaak, soos byvoorbeeld om 'n werkboek saam te stel wat voorsiening maak vir die meting van die doeltreffendheid van die hulpmiddel, asook om die hulpmiddel vir groepe met unieke behoeftes toepasbaar te maak. ENGLISH: The aim of this study was to develop a sensitisation aid for healthy personality functioning. It can be used as an aid by educators who can utilize it as part of their educational knowledge. The skills that this aid underwrites are aimed at promoting healthy personality functioning. The frame of reference used by the researchers was idealistic interpretation with realisation in the systems approach. The choice of the reference framework was based on the fact that personality functioning is in general, considered to be multi-dimensional and that people are continually interacting with others. People also function in variable situations and contexts. Two personality constructs namely Locus of Control and Ego Strength were academically analysed and the results were integrated. Although the choice of constructs was arbitrary, they were justified on the grounds of experience obtained in practices, expressed needs from other educators and the emphasis currently placed on the two constructs by academics. The completed study as explained in two volumes (Part I and II) and finalized by the researchers I. De Beer and R. Nel respectively, was conducted at three levels of data analysis. In the first-order analytical level, the existing literature on the constructs was extrapolated. This information was integrated and a concept aid was developed hereafter. This development was done by the creation of pattern categories with the aid of second¬ order analysis. The concept aid consisted of a structured section (a five point scale) and a semi-structured section (inputs that had to be generated spontaneously by respondents). The concept aid was presented to a selected sample of 32 educators namely parents, teachers and psychologists. The educators evaluated the aid and also included their own ideas. The information gathered from this process was discussed and refined in focus groups. The data that was acquired was quantitatively analysed and statistically processed and re¬integrated as a concept aid. The concept aid was evaluated in practice by educators. The final aid was compiled in an user friendly language and format. Hereafter the researchers re-coupled the aid back to the original constructs from which it was derived. To conclude with, the study and the aid were discussed conceptually in terms of the current state in psychology as well as within the broader context of South Africa. Numerous recommendations for further research were made. Examples of these are the compilation of a workbook that provides for the measurement of the effectiveness of the aid and the adaptation of the aid to meet the requirements of groups with unique needs.Thesis (D Phil (Psychology))--University of Pretoria, 2007.
Psychology
unrestricted
39
De, Beer Ilse. "Egosterkte en lokus van kontrole : 'n sisteemteoretiese studie vir die ontwikkeling van 'n opvoedkundige sensitiseringshulpmiddel (Afrikaans)." Thesis, 1999. http://hdl.handle.net/2263/30533.
Full textAbstract:
AFRIKAANS: Die doel van hierdie studie was om 'n sensitiseringshulpmiddel oor gesonde persoonlikheidsfunksionering te ontwikkel. Dit kan dien as 'n hulpmiddel vir opvoeders wat dit kan aanwend as deel van hul opvoedkundige kennis. Die vaardighede wat hierdie hulpmiddel onderskryf, is daarop gerig om gesonde persoonlikheidsfunksionering te bevorder. Die denkraamwerk van waaruit die navorsers gewerk het, was idealisties interpreterend met realisasie in die sisteemteorie. Die keuse van die denkraamwerk was gebaseer op die feit dat persoonlikheidsfunksionering oor die algemeen as multi-dimensioneel beskou word, asook dat persone voortdurend in interaksie is met ander persone. Mense funksioneer ook in veranderlike situasies en kontekste. Twee persoonlikheidskonstrukte naamlik Lokus van Kontrole en Egosterkte is akademies ontleed en die resultate hiervan is geïntegreer. Alhoewel die keuse van die twee konstrukte arbitrêr was, was dit geregverdig op grond van praktykondervinding, uitgesproke behoeftes van ander opvoeders en die klem wat tans akademies op die twee konstrukte geplaas word. Die totale studie soos uiteengesit in twee volumes (Deel I en Deel II) soos onderskeidelik gefinaliseer deur die navorsers, I. De Beer en R. Nel, was deurlopend gerig deur drie vlakke van data-ontleding. Op die eerste-orde-ontledingsvlak is die bestaande literatuur oor die twee konstrukte geëkstrapoleer. Die inligting is geïntegreer en 'n konsephulpmiddel is hieruit ontwikkel. Hierdie ontwikkeling het plaasgevind deur patroonkategorieë te skep met behulp van tweede-orde-ontleding. Die konsephulpmiddel het bestaan uit 'n gestruktureerde deel (vyf-puntskaal) en 'n semi-gestruktureerde deel (bydraes wat respondente spontaan moes genereer). Die konsephulpmiddel is aangebied aan 'n geselekteerde steekproef van 32 opvoeders naamlik ouers, onderwysers en sielkundiges. Die opvoeders het die hulpmiddel geëvalueer en ook hulle eie idees weergegee. Inligting wat hieruit verkry is, is in fokusgroepsessies bespreek en verfyn. Die data wat hieruit verkry is, is kwalitatief ontleed, statisties verwerk, geïntegreer en as 'n konsephulpmiddel ontwikkel. Die konsephulpmiddel is deur opvoeders in die praktyk geëvalueer. Die finale hulpmiddel is in gebruikersvriendelike taal en vorm saamgestel. Hierna is die hulpmiddel teruggekoppel na die oorspronklike konstrukte waaruit dit ontwikkel is. Laastens is die studie en die hulpmiddel konseptueel in terme van die huidige stand van die sielkunde, asook binne die groter konteks van Suid-Afrika bespreek. Verskeie aanbevelings vir verdere navorsing is gemaak, soos byvoorbeeld om 'n werkboek saam te stel wat voorsiening maak vir die meting van die doeltreffendheid van die hulpmiddel, asook om die hulpmiddel vir groepe met unieke behoeftes toepasbaar te maak. ENGLISH: The aIm of this study was to develop a sensitisation aid for healthy personality functioning. It can be used as an aid by educators who can utilize it as part of their educational knowledge. The skills that this aid underwrites are aimed at promoting healthy personality functioning. The frame of reference used by the researchers was idealistic interpretation with realisation in the systems approach. The choice of the reference framework was based on the fact that personality functioning is in general, considered to be multi-dimensional and that people are continually interacting with others. People also function in variable situations and contexts. Two personality constructs namely Locus of Control and Ego Strength were academically analysed and the results were integrated. Although the choice of constructs was arbitrary, they were justified on the grounds of experience obtained in practices, expressed needs from other educators and the emphasis currently placed on the two constructs by academics. The completed study as explained in two volumes (Part I and II) and finalized by the researchers I. De Beer and R. Nel respectively, was conducted at three levels of data analysis. In the first-order analytical level, the existing literature on the constructs was extrapolated. This information was integrated and a concept aid was developed hereafter. This development was done by the creation of pattern categories with the aid of second-¬order analysis. The concept aid consisted of a structured section (a five point scale) and a semi-structured section (inputs that had to be generated spontaneously by respondents). The concept aid was presented to a selected sample of 32 educators namely parents, teachers and psychologists. The educators evaluated the aid and also included their own ideas. The information gathered from this process was discussed and refined in focus groups. The data that was acquired was quantitatively analysed and statistically processed and re¬integrated as a concept aid. The concept aid was evaluated in practice by educators. The final aid was compiled in an user friendly language and format. Hereafter the researchers re-coupled the aid back to the original constructs from which it was derived. To conclude with, the study and the aid were discussed conceptually in terms of the current state in psychology as well as within the broader context of South Africa. Numerous recommendations for further research were made. Examples of these are the compilation of a workbook that provides for the measurement of the effectiveness of the aid and the adaptation of the aid to meet the requirements of groups with unique needs.Thesis (DPhil (Psychology))--University of Pretoria, 2007.
Psychology
unrestricted
40
Stone, Maria Magdalena. "Benutting van Gestaltspelterapie met die fokus op selfondersteuning by die kind in die middelkinderjare." Thesis, 2007. http://hdl.handle.net/10500/1938.
Full textAbstract:
Text in AfrikaansIn this study the researcher explored and described the use of Gestalt play therapy with specific focus on self-support with the child in middle childhood years. A literature study was undertaken to examine the concepts of child, Gestalt play therapy, self-support and the play therapy process. This literature study forms the theoretical frame in which this study was done. After the completion of the literature study, the empirical study was conducted. The researcher made use of unstructured interviews within a intrinsic single case study in order to compile research data. During the empirical study ten therapy sessions were conducted with the participant which was explored within the framework of qualitative research methodology. The researcher was able to use ample Gestalt play therapy concepts and principles during the description of the case study in order to explore self-support within the child during middle childhood. These concepts and principles will be discussed in depth within this study.
Social Work
M.Diac. (Spelterapie-rigting)
41
Hammond, Cynthia Imogen. "The strength and fragility of the egg : Spring Hurlbut's interventions in the classical idiom." Thesis, 1996. http://spectrum.library.concordia.ca/5363/1/MM18398.pdf.
Full text
42
Wang, Yuan-Tin, and 王元亭. "A Study of Weibull Analysis on Ultimate Tensile Strength of Fine Copper Wires after EFO Process." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/51307629434372070783.
Full textAbstract:
碩士國立成功大學
材料科學及工程學系碩博士班
93
The advantages of copper wire for wire bonding are lower cost, higher strength and electrical conductivity in comparison with gold wire. Oxidation and insufficient ductility of copper wire resulted in low reliability in the copper wire bonding process, and fracture during wire bonding process is also a factor that reduces reliability. In this study, copper wires (ψ=25μm) of different annealing temperature (150~250℃, hold 1hr) had been melted into a ball by the EFO (Electric Flame Off) process and discussed both the mechanism properties and microstructure with wires and FAB (Free Air Ball). Then the UTS of the wires after EFO process had been discussed by reliability analysis. As results as the experiments, fully annealed wires could be obtained as annealing temperature was above 200℃. The elongated grains transformed into equiaxed grains due to recrystallization above 200℃, and the tensile data showed lower strength and higher elongation. The microstructure of copper wire FABs revealed columnar grains. The melting of wire tail resulted in a temperature gradient and caused the variation in properties over the region called the heat-affected zone (HAZ). The HAZ showed the lower hardness and UTS due to the recrystallization and growth of new grains. This result made the fracture occurred in HAZ in tensile test and also caused the distribution of the tensile data showed a larger range. As results as the Weibull analysis, the Weibull modulus under all annealing conditions were wear-out failure mode. UTS of fully annealed wires after EFO process had better reliability than as-drawn wires. And 200℃ was the best condition of annealing.
43
Campos, Pedro Gabriel da Silva. "Betões eco-eficientes com elevados teores de adições minerais." Master's thesis, 2012. http://hdl.handle.net/1822/30313.
Full textAbstract:
Dissertação de mestrado integrado em Engenharia CivilÉ do conhecimento geral que cada tonelada de cimento produzida é responsável pela emissão de uma tonelada de CO2 para a atmosfera e, considerando o gigantesco volume de cimento produzido mundialmente, qualquer redução significativa na sua produção e consumo, trará vantagens ecológicas significativas. De modo a contribuir para sustentabilidade da construção, a presente dissertação pretende dar um contributo para a redução do consumo de cimento, através da sua racionalização, substituindo elevados volumes de cimento no fabrico de betões por adições, nomeadamente subprodutos industriais, tais como as cinzas volantes. Contudo, betões com elevados volumes de cinzas volantes possuem alguns inconvenientes, os quais têm impedido a sua generalização, pelo que se tentou mitigar tais inconvenientes, através da incorporação de outras adições minerais (metacaulino e cal hidratada), que possam corrigir os principais inconvenientes associados a este tipo de betões. Ainda relacionado com a eco-eficiência deste material, procurou-se produzir um betão auto-compactável, evitando assim a necessidade de vibração e consequente poluição sonora, para além, de se evitar decréscimos na durabilidade das estruturas resultantes de uma deficiente compactação do betão. Para tal, desenvolveu-se um programa experimental capaz de caracterizar o desempenho, face à resistência e durabilidade, de misturas binárias, ternárias e quaternárias, produzidas com elevados volumes de cinzas volantes e pequenas percentagens de metacaulino e cal hidratada. Da análise dos resultados obtidos é possível evidenciar que a sinergia resultante destas misturas revelou desempenhos promissores, concluindo-se que é possível produzir betões auto-compactáveis com elevados volumes de cinzas volantes e, pequenas percentagens de metacaulino e cal hidratada, com desempenhos mecânicos e de durabilidade adequados à maioria das infra-estruturas correntes, a um custo bem mais reduzido que o preconizado actualmente pelo betão corrente, podendo-se traduzir numa solução viável para a obtenção de um betão eco-eficiente.
It is common knowledge that every ton of cement produced is responsible for emitting a ton of CO2 into the atmosphere and considering the huge amount of cement produced worldwide, any significant reduction in its production and consumption, will bring significant environmental benefits. In order to contribute to sustainable construction, the present paper aims to contribute to the reduction in cement consumption through its rationalization, replacing large volumes of cement by additions, including industrial byproducts such as fly ashes. However, concrete with high volumes of fly ashes have some drawbacks which have prevented its widespread and it is attempted to mitigate these drawback by incorporating other mineral additions (metakaolin and hydrated lime) which can fix the main drawback associated to this type of concrete. Also related to the eco-efficiency of this material, we sought to produce a self-compacting concrete, avoiding the need for vibration and subsequent noise, as well, preventing a decrease in durability of the structures as a result of a poor compaction of the concrete. To this end, it was developed an experimental program able to characterize the performance, concerning to the strength and durability of binary, ternary and quaternary mixtures, with high volumes of fly ash and small percentages of metakaolin and hydrated lime. After the analysis of the results, the synergy resulting from the mixtures showed promising performances, concluding that it is possible to produce self-compacting concretes with high volumes fly ash and small percentages of metakaolin and hydrated lime, with mechanical and durability performances suitable for the most current infrastructure at a much lower cost than the traditional concrete, which could represent a viable solution to obtain an eco-efficient concrete.
44
Cunha, Diogo Manuel Ferreira da. "Betões eco eficientes com incorporação de cinzas de biomassa." Master's thesis, 2017. http://hdl.handle.net/1822/70630.
Full textAbstract:
Dissertação de mestrado integrado em Engenharia CivilA sustentabilidade da construção é um assunto com grande influência e consequências na atualidade. Uma das medidas de modo a contribuir para a sustentabilidade é reduzir a produção e o consequente consumo de cimento que deriva da construção. A produção de cimento Portland origina a libertação de grandes quantidades de CO2 e consome grandes quantidades de energia. Como o betão é utilizado na construção em grandes quantidades, pode ser utilizado de maneira a nele serem incorporados resíduos e subprodutos industriais de forma segura e económica. Um exemplo é a incorporação de cinzas volantes de carvão provenientes de centrais termoelétricas. Betão com um elevado volume de cinzas volantes, possui uma reação pozolânica lenta e, portanto, a resistência mecânica inicial do betão é menor que o betão com cimento como único ligante. O destino de valorização mais comum dos resíduos florestais é a sua valorização térmica através da combustão. As cinzas volantes de biomassa têm características semelhantes às cinzas volantes de carvão, no entanto, são mais alcalinas (maior pH) e possuem um teor de cálcio maior. O principal objetivo deste trabalho consiste em avaliar a possibilidade de produzir betões de desempenho melhorado incorporando elevado volume de cinzas volantes de carvão, bem como utilizar pequenas quantidades de cinzas volantes de biomassa, de forma a mitigar alguns dos inconvenientes dos betões com elevado volume de cinzas volantes de carvão. Com base nos resultados obtidos, a durabilidade das composições com elevado volume de cinzas volantes, revelou-se, em geral, superior à da composição de referência, com exceção relativamente à resistência à carbonatação que, contudo, foi melhorada com a inclusão de uma reduzida quantidade de cinzas de biomassa. A cinza volante de carvão possuiu uma boa sinergia com quantidades reduzidas de cinza de biomassa que resultou numa boa atividade pozolânica.
The sustainability of construction is a subject with great influence and consequences at the present time. One of the measures to contribute to sustainability is to reduce the production and consequent consumption of cement that comes from construction. The production of Portland cement gives rise to the release of large amounts of CO2 and consumes large amounts of energy. As concrete is used in large-scale construction, it can be used to incorporate industrial waste and by-products in a safe and economical way. An example is the incorporation of coal fly ash from thermoelectric power plants. Concrete with a high volume of fly ash has a slow pozzolanic reaction and, therefore, the initial mechanical strength of the concrete is lower than the concrete with cement as the sole binder. The most common destination for forest residues is their thermal recovery through combustion. Biomass fly ash has characteristics similar to coal fly ash, however, they are more alkaline (higher pH) and have a higher calcium content. The main objective of this work is to evaluate the possibility of producing improved performance concrete incorporating a high volume of coal fly ash, as well as to use small amounts of biomass fly ash to mitigate some of the drawbacks of concretes with high volume of coal fly ash. Based on the obtained results, the durability of the compositions with a high volume of fly ash has generally proved to be superior to that of the reference composition, except for the resistance to carbonation which has however been improved by the inclusion of a reduced amount of biomass ash. Coal fly ash had a good synergy with reduced amounts of biomass ash which resulted in good pozzolanic activity.
45
Jan, Wafaa Omar. "Testing a Conceptual Model of Three Key Strengths of Psychosocial Well-being in Saudi Gifted Adolescents." Thesis, 2017. https://vuir.vu.edu.au/42160/.
Full textAbstract:
The important role of psychosocial well-being in increasing the manifestation of intellectual giftedness in adolescents is evident in the literature. In this thesis three psychological perspectives have provided the theoretical background for the development of a conceptual model of the psychosocial well-being in adolescents:
1. Psychosocial theory relating psychosocial development in adolescence to the successful resolution of identity crisis in the form of the ego strength of fidelity.
2. The social cognitive identity style model which adds additional insight into the identity function of adolescents as processing self-relevant information about self and constructing self-identity.
3. The constructive-developmental theory that refers to complexity of mind as a means of understanding the mental health of adolescents.
The major aim of this thesis was to examine the usefulness of the conceptual model as
a construct of the three key strengths to explore the psychosocial well-being in Saudi gifted adolescents. The usefulness of the conceptual model of psychosocial well-being in Saudi intellectually gifted adolescents was examined using a two stages approach. The first stage investigated the conceptual relationship between identity style and psychosocial ego strengths with 226 Saudi gifted high school students. The sample comprised 134 males and 132 females, ranging in age from 15 to 17.
Identity style and psychosocial ego strengths were assessed using two validated instruments. Markstrom’s Psychosocial Inventory of Ego Strengths (PIES) was developed to measure Erikson’s eight ego strengths (hope, will, purpose, competence, fidelity, love, care, and wisdom). Berzonsky’s Identity Style Inventory (ISI-3) was used to measure three styles of identity processing orientation: the informational, normative and diffuse-avoidant styles. Both instruments were translated in Arabic.
Analysis was undertaken using statistical tests including ANOVA and stepwise regressions to test whether males and females differed in the use of three identity styles, and to test the relationships between identity style and the total PIES score and the PIES subscale fidelity as associated with the positive resolution of identity crisis in adolescence. Recruited from Stage 1, 18 structured interviews were undertaken in Stage 2. These interviews followed the Structure of Subject- Object Interview (SOI) procedure and analytic structure developed by Lahey, Souvaine, Kegan, Goodman and Felix in 1990.
Gender differences were examined for the three identity styles of processing (ISI-3) and the eight ego strengths subscales. Both males and females used all three identity styles; however, the males scored significantly higher on the information and normative styles than the females whereas females scored higher on the diffuse/avoidant styles. For the PIES, females scored higher than males on the subscales of love and care. There were no significant differences for the other six subscales.
Stepwise linear regression was used to assess the relative contribution of the three identity styles and gender to the PIES total score, and for the PIES subscale fidelity. Informational style accounted for 14% of the variation in the PIES total score. The diffuse– avoidant style was negatively associated with the PIES total score and gender was significant. 23 percent of the variance in the PIES total score was explained by these three variables. All ISI-3 styles and gender were significantly associated with the Fidelity sub-scale, with approximately 17% of the variance explained.
The findings of the Subject–Object Interview (SOI) analysis, which focused on complexity of mind, were limited as all participants showed no evidence of higher order of mental capacity more than the socialized mind among all three identity styles.
The conceptual model has confirmed the relationships between the social cognitive processing self-relevant information and the psychosocial ego development. The psychosocial health among intellectually gifted adolescents can be understood through the identity styles as functional aspects of psychosocial well-being. The complexity of mind explains the order of mental capacity among intellectually gifted adolescents.
46
HEINDL, Jakub. "Úprava krmné dávky pro nosnice za účelem zlepšení pevnosti a tvrdosti skořápek vajec." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-174645.
Full textAbstract:
This major thesis expands the issue of the bachelor thesis "The issue of raising laying hens considering on introduction of enriched cages" and adds new knowledge relating to the topic feed rations and their influence on the final production. The theoretical part of the thesis analyses the basic theoretical concepts cohering with this topic, focused on creating a comprehensive overview of the structure and quality of the eggs, the basic ingredients in the feed rations, qualitative parameters of grapes as the modified additive provided by us and last but not least there is processed the recent overview of the current state of large-scale farmers in the Czech republic. The practical part of the thesis aims to test the effect of the proposed feed with an additive in the form of the crushed grape seeds, on the strength of the eggshell, by homogeneous samples of the breeds through from us proposed measuring instrument. Subsequently, a statistical evaluation of measured results is realized. In conclusion, the consideration is extended to the economic evaluation of costs and profits in case of the implementation of the suggested feed ration into practice in order to quantify the difference compared to the commonly used feed ration.
47
Scholz, Britta [Verfasser]. "Evaluation of small group systems with elevated perches, furnished cages and an aviary system for laying hens with respect to bone strength, keel bone status, stress perception and egg quality parameters / vorgelegt von Britta Scholz." 2007. http://d-nb.info/987894498/34.
Full text