To see the other types of publications on this topic, follow the link: Father influence.

Dissertations / Theses on the topic 'Father influence'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Father influence.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Blocker, Daniel Joseph. "Father Influence on Adolescent Sexual Debut." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/5459.

Full text
Abstract:
Guided by the limited previous literature of adolescent sexual debut and father behaviors, this study examined the influence of father warmth, involvement, and monitoring on adolescent age of sexual debut and likelihood of sexual debut before age 16. Participants and measures were drawn from the Flourishing Families Project and included 346 families and variables from measures completed by adolescents and their parents. A zero-inflated Poisson model was used to test the relationship between father variables and adolescent sexual debut. Gender differences were also analyzed. The findings indicate that an increase in father warmth correlates with a decreased age of sexual debut for adolescent sons and daughters. Results also suggest that an increase in father engagement is related to an increase in the age of debut. However, this variable was also associated with increasing the likelihood of debut for adolescent sons. No significance was found between father monitoring and the age or likelihood of debut. Findings suggest that father variables, independent of mother behaviors, uniquely influence adolescent sexual debut; these effects seem to be protective in some circumstances, while increasing risk in other instances. Implications for future research is considered.
APA, Harvard, Vancouver, ISO, and other styles
2

Pratt, Kariga K. "The influence of paternal role upon father involvement among army fathers serving on active duty." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/32911.

Full text
Abstract:
Doctor of Philosophy
School of Family Studies and Human Services
Walter R. Schumm
Farrell J. Webb
Army fathers are consistently confronting and overcoming unique socio-cultural obstacles involving their paternal role. Due to the dynamic military culture in which Army fathers live, they could serve as powerful examples of resilience for all fathers in diverse communities. Transitions in the work environment such as frequent deployments, relocations, and other related stressors often create competing priorities for Army fathers. The enormous sacrifices, challenges, and demands that these dads face are often juxtaposed with the benefits, rewards, and honors involved with serving one’s country. This research examines the influence of the paternal role on father involvement among fathers currently serving on active-duty in the United States Army. Utilizing a sample of military fathers (n = 161) from an Army installation, it was possible to identify various types of paternal roles and the corresponding levels of father involvement. This study provides a comprehensive plan for support programs and services to increase father involvement within families and communities. It also serves as a basis for educational programs and services designed to support fathers in the United States armed services. The Influence of Paternal Role upon Father Involvement Model integrates conceptual underpinnings from Ecological Systems and Symbolic Interaction perspectives that were operationalized and tested in this research. This research found a positive association between paternal role and father involvement, F (₁₃, ₁₅₁) = 10.683, p < .001. It was determined that approximately 49% of the variance in paternal role could be explained by father involvement. These data revealed that paternal role has a greater impact than originally postulated in addressing issues related to competing environmental factors and father involvement. The research findings underscore the daunting socio-cultural challenges of being a tough guy and tender father through unparalleled commitment to their Nation and fatherhood displayed by soldiers serving on active duty. The implications from this investigation are broad in focus and have important ramifications for our society. Military fathers are experiencing complex issues related to father involvement and require structured comprehensive support programs. The sacrifices military fathers volunteer to take on are often more extensive than initially perceived. Therefore, dynamic fathering programs should be implemented to offset some of the challenges of unanticipated expectations and increase paternal involvement among Army fathers.
APA, Harvard, Vancouver, ISO, and other styles
3

Tefteller, David Hjortaas. "The Influence of Father Involvement and Family Structure Variables on Young Adult-Father Relationship Quality." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1405094364.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Butler, David Alan. "Markings the influence of godly fathers /." Theological Research Exchange Network (TREN), 1996. http://www.tren.com.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Peterson, Tracy L. "The father/child relationship and its influence on criminal behavior." Online version, 2001. http://www.uwstout.edu/lib/thesis/2001/2001petersont.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Siller, Christina. "A father's supportive presence: Understanding how fathers influence children's developmental outcomes." Scholarly Commons, 2012. https://scholarlycommons.pacific.edu/uop_etds/125.

Full text
Abstract:
The present study focuses on how a father's supportive presence during interactions with his child influences his/her social outcomes in adolescence. Ethological theories of attachment provide a theoretical basis for the investigation of father-child interactions because they provide us with an explanation regarding how and why child-caregiver relationships function to influence a child's development and later social functioning. Structural equation modeling was used to construct a theoretical model by which fathering behaviors influence later psychosocial outcomes, particularly impulse control and risky behaviors during adolescence. For boys, supportive mothering behaviors had a greater influence on impulse control than supportive fathering behaviors. The opposite was true for girls. For girls, supportive fathering behaviors had a greater influence on impulse control than supportive mothering behaviors. Impulse control served a partial mediating effect between supportive parenting behaviors and risk-taking behaviors. For sons, supportive mothering behaviors had a significant positive impact on impulse control during adolescence. Conversely, for daughters, supportive fathering behaviors—but not supportive mothering behaviors—had a significant positive impact on impulse control during adolescence. In fact, supportive mothering behaviors had an insignificant effect on daughters' impulse control during adolescence,
APA, Harvard, Vancouver, ISO, and other styles
7

Knox, Celia Isobel. "The patriot priest - Father Eugene Sheehy : his life, work, and influence." Thesis, University of Sussex, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244353.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Sethna, Vaheshta. "Father's role in infancy : examining the influence of paternal depression in the postnatal period on early father-infant interactions." Thesis, University of Oxford, 2009. https://ora.ox.ac.uk/objects/uuid:83c660a5-fc9f-4677-9f17-ce6526b3e3c3.

Full text
Abstract:
Background: Parental depression in the post-natal period is associated with an increased risk of adverse child outcomes. Research has consistently revealed impaired interactions of postnatally depressed mothers, and this is one pathway by which children are affected. Evidence suggests that depression can also affect fathers in the postnatal period and this influences children's development; yet we are only beginning to understand the factors that explain this intergenerational transmission. This thesis aims to examine: (i) the influence of paternal depression on father-infant interactions at three months and (ii) the potential mediating role of these early interactions in the development of later child externalizing problems. Method: In a longitudinal investigation, 118 fathers were assessed for depressive symptoms postnatally using a structured clinical interview. Observational behaviours of fathers and their infants were coded using the Global Rating Scale (GRS). Two exploratory studies were conducted on a sub-sample of depressed and non-depressed fathers, matched on age and education (n=38). In the first study, behaviours representing the paternal repertoire were measured and in the second, paternal speech was analysed. New scales were developed for both these studies. Child Externalizing behaviours at one year were measured using maternal ratings on the Child Behaviour Checklist (CBCL/1½-5). Results:Depressed fathers were more withdrawn in their interactions with their infants and more negative in their speech compared to controls. They engaged in less gentle touch, fewer episodes of excitatory arousal and less active engagement. Decreased engagement mediated the association between paternal depression and child behaviour problems. ConclusionThis study has identified aspects of father-infant interaction that are impaired by depression. These parenting behaviours may be a potential target of intervention in postnatally depressed fathers.
APA, Harvard, Vancouver, ISO, and other styles
9

Samukimba, Jill Chidisha. "Exploring the influence of intlawulo on father Involvement among Xhosa speaking black South African fathers raised and living in Cape Town." Master's thesis, Faculty of Humanities, 2020. http://hdl.handle.net/11427/32344.

Full text
Abstract:
Studies on African fatherhood represent African fathers as problematic and in South Africa, they are identified as ‘‘emotionally disengaged, physically absent, abusive and do not pay for their children's upkeep'' (Morrell & Ritcher, 2006:81). Many studies link the high rates of absent fathers to poverty and irresponsibility. Such literature is devoid of cultural factors that might be contributing to the high rates of absent fathers in most African communities. Across Southern Africa, intlawulo, a customary practice that involves the paying of a fine by a man responsible for impregnating a woman out of wedlock and his family to the pregnant woman's family. Historically, intlawulo served as a critical means of regulating and mediating unmarried fathers' involvement in their children's lives. Therefore, this explorative qualitative research project explores African fathers' experiences of intlawulo and its subsequent links to father involvement. To gauge their experiences and interpretation of intlawulo and father involvement, I conducted face-to-face in-depth qualitative interviews with a purposive sample of 8 black Xhosa speaking South African fathers from Cape Town who have gone through the intlawulo negotiations for the past five years or less. This study aimed to explore how the customary practice of intlawulo or ‘paying damages' influences a father's involvement in his child's life in Khayelitsha, an urban township within Cape Town. It argued that the payment of intlawulo regulates a father's involvement in childrearing, his interaction with and access to his child. In contrast to how fathering has been described in previous literature, this thesis argues that becoming a father is a process and intlawulo is the entry point where it can be denied, stopped and negotiated.
APA, Harvard, Vancouver, ISO, and other styles
10

Nath, Selina. "The influence of paternal depressive symptoms on fathers' parenting, father-child attachment and children's outcomes during pre-school and school years." Thesis, University of Exeter, 2014. http://hdl.handle.net/10871/15970.

Full text
Abstract:
Background: Understanding of child development is predominantly based on maternal influences on children’s emotional, behavioural and cognitive outcomes. Although there has been an increase in research focus on fathers in recent years suggesting that fathers are important in the development of their child, there is still a shortage of research on fathers in the literature. Research has shown fathers negatively impact on their children’s emotional, behavioural and cognitive development, but there is a lack of understanding regarding the specific mechanisms through which paternal depression influences their children. The aim of the current PhD is to address this gap in the literature and this is done by: a) investigating the prevalence of depressive symptoms among fathers of children (aged 9 months – 7 years) and their associated risk factors; b) investigating the association between paternal depressive symptoms and different aspects of parenting such as warmth, conflict and involvement; c) testing whether fathers’ parenting mediated any association between paternal depressive symptoms and children’s emotional, behavioural and cognitive outcomes; and d) investigating the association between paternal depression/depressive symptoms and insecure father-child attachment. Methods: There are two methods employed for this PhD. One is secondary data analysis of the large and representative Millennium Cohort Study (MCS) (investigating a, b and c) and the other is primary data analysis of the Fathers-in-Focus (FIF) study using interview and observational methods to investigate (d). Results: Paternal depressive symptoms peak during the first year of children’s lives and then gradually decline between the first year and 7 years old (a). These depressive symptoms across the first 7 years of fatherhood were consistently associated with maternal depressive symptoms, relationship conflict and unemployment (a). Moreover, depressive symptoms in the first year were associated with father-child conflict, but not father-child warmth or involvement in parenting activities (b). Father-child conflict mediated the association between paternal depressive symptoms and children’s emotional and behavioural outcomes (c). Finally, father’s depressive symptoms were not associated with father-child attachment or children’s cognitive development (c and d). Conclusion: The key finding of this PhD is that father-child conflict is an important factor that may be associated with the risk transmission of paternal depressive symptoms and children’s emotional and behavioural outcomes. Therefore, it may be beneficial for service providers and clinicians to target interventions with depressed fathers’ and at-risk families.
APA, Harvard, Vancouver, ISO, and other styles
11

Xia, Lu. "FATHERS' LANGUAGE INFLUENCE ON THEIR SIX-MONTH-OLD INFANTS' VOCALIZATION DURING FREE-PLAY." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2142.

Full text
Abstract:
Data for this study were derived from videotapes of 26 father-infant dyads, specifically from a five minute period of free-play. The first step was the creation of a literal transcription of the father-infant dyads interaction. Subsequently, nine variables of fathers' language characteristics and one infant characteristic were coded employing the literal transcriptions and observing the videotapes. The fathers' language variables were number of : (1) father utterances, (2) father words, (3) father contingent responses, (4) father teaching utterances, (5) father descriptive teaching utterances, (6) father directive teaching utterances - making commands, (7) father directive teaching utterance  asking questions, (8) percentage of father teaching utterances, and (9) mean length of father utterances (MLU). The infant variable was number of vocalizations. Eight out of the nine variables were positively correlated to infant vocalizations, indicating the importance of fathers input in child language development. The only negative correlation in the present study was between Mean Length of Utterance (MLU) and infant vocalizations and the possible reasons are discussed. The findings support the idea that there are positive relationships between fathers' language characteristics and infant vocalizations. Recommendations are made that fathers should be involved in early intervention programs.
M.A.
Department of Child, Family and Community Sciences
Education
Early Childhood Development and Education MS
APA, Harvard, Vancouver, ISO, and other styles
12

Ledgerwood, Angela D. "Father involvement in Latino families: The influence of acculturation, gender attitudes, and parenting style." Miami University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=miami1343783135.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Yaxley, Meika J. "Perceived fatherly affirmation and father-daughter bond: their influence on young women's self-esteem, body-image esteem and adult attachment style /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19212.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Varney-Wong, Anna. "An exploratory study of the influence of an absent father on the identity formation of women." Master's thesis, Faculty of Humanities, 2019. https://hdl.handle.net/11427/31803.

Full text
Abstract:
This clinical study explored the significance of the experience of an absent father on the identity formation of women in an attempt to understand the psychological effect of father absence and the role this experience plays in terms of the daughter's, confidence, self esteem, social identity and intimate relationships. The influence on resiliency of the absent father experience is also a critical aspect of this research. The two theoretical frameworks that guide this clinical study are: the psychodynamic approach, more specifically, objects relations, and self psychology, and Bowens’ family systems theory. The research method is a qualitative design to develop an in-depth understanding of the sample population of twenty adult women who had grown up without a father and live in the geographical area of Cape Town. Data was collected using an in-depth, semistructured interview, facilitated by open-ended questions contained in an interview guide. A wide range of conditions affected participants in the study. Presence of a positive caregiver experience in early childhood appeared to play a role in the psychological well-being of the women. The quality of the women's relationships also appeared to be influenced by their early relational experiences. Poverty was the cause of hardship for many of the participants. Some of the women experienced shame and an internal poverty of worthlessness resulting from perceived rejection and abandonment by their fathers. These psychological experiences were found to influence social interactions and they were often less socially engaged than their peers. The women were generally resilient, at least to some degree and received a measure of support from others, however many felt they were their own most reliable resource.
APA, Harvard, Vancouver, ISO, and other styles
15

Abad, Neetu Suresh. "The influence of paternal autonomy-support upon ethnic culture identification among second-generation immigrants." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4949.

Full text
Abstract:
Thesis (M.A.)--University of Missouri-Columbia, 2007.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on October 22, 2007) Includes bibliographical references.
APA, Harvard, Vancouver, ISO, and other styles
16

Madsen, Kristiane. "Humor as a Moderating Variable of the Relationship Between Family Conflict and Self-Regulation in Children: A Two-Year Panel Study." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2295.

Full text
Abstract:
Conflict is a common problem among families, and children may be negatively affected by this family dynamic. Some family characteristics may protect children from negative effects, even in the midst of conflict. Though little research has been conducted addressing familial effects of humor, the current longitudinal study examined the moderating effect of humor on the relationship between family conflict and child self regulation. Two hundred ninety six two-parent families from the Seattle area were surveyed and observed as a party of Brigham Young University's Flourishing Family Project. Family conflict and coded humor from an observation task were assessed at time 1 and self regulation in the child was assessed at both time 1 and one year later. Results indicated that (1) family conflict negatively influences child self regulation, (2) that humor between fathers and children is associated with child self regulation, and (3) that humor between fathers and children may buffer the effects of family conflict on a child's self regulation. Humor between mothers and children and between mothers and fathers did not moderate the relationship between family conflict and child self regulation. These results suggest that some forms of family humor may provide families with healthy child outcomes. Limitations and implications for family therapy are discussed.
APA, Harvard, Vancouver, ISO, and other styles
17

Hicks, III Kennie. "Developing Courageous Influence: The Direct Impact of Society, Cultural Views, and Good Father-Daughter Relationships on Adolescent Girls." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/secfr-conf/2020/schedule/34.

Full text
Abstract:
Fathers play a major role in their son’s lives. From teaching them how to play football to having the birds and the bees talk with them. Statistics show that a son is greatly affected by whether his father is around or not. So that leaves the question of are girls just as affected as boys are by a father’s presence? For example, what did Mulan, the movie character, have in her life that some girls do not? A rare, yet healthy bond with her father could be the very factor that affected her attitude, values, and beliefs tremendously. The Social Learning Theory and nature versus nurture ideology are used to explain how this factor could be the very difference in her overall development. Briefly discussed is the Social Learning Theory, nature versus nurture ideology, Chinese culture, Mulan’s relationship with her father and how it correlates with Mulan’s overall development.
APA, Harvard, Vancouver, ISO, and other styles
18

Tither, Jacqueline M. "Influence of family disruption/father absence on daughters' age at menarche: A genetically and environmentally controlled sibling comparison study." Thesis, University of Canterbury. Psychology, 2013. http://hdl.handle.net/10092/8967.

Full text
Abstract:
Previous research has demonstrated that exposure to family disruption/father absence (due to parental relationship dissolution) is a significant risk factor for early pubertal development in daughters. Moreover, the earlier in life that this exposure occurs, the greater the risk of these outcomes for girls. Two opposing classes of explanation have been proposed for this reliable finding. First, evolutionary-based developmental experience models have proposed that father absence may actually cause early pubertal development in daughters through mechanisms that remain to be elucidated. Second, this association may arise from either a genetic or a family-wide environmental confound. To discriminate between these two competing classes of explanation (i.e., causal vs. noncausal), a retrospective study employing a community sample of full biological sister pairs was conducted in New Zealand. This study examined menarchael age in (a) a primary group comprising age-discrepant biologically disrupted/father absent sister pairs (n = 68), and (b) a matched control group comprising age-discrepant biologically intact/father present sister pairs (n = 93). According to the causation model, if greater exposure to family disruption/father absence causes earlier pubertal development in girls, then in families in which (a) full biological sisters are discrepant in age, and (b) the younger sister has experienced more prolonged father absence than has her older sister, younger sisters should be at greater risk for earlier pubertal development. By contrast, if a genetic or family-wide environmental confound explains this association, full biological sisters should not systematically differ in pubertal timing as a function of birth order, even if they have experienced different amounts of father absence. The unique contribution of the current study to this area of inquiry is its employment of a differential sibling exposure design to test the explanatory value of the two opposing classes of explanation (i.e., causal versus noncausal). This genetically and environmentally controlled sibling design was utilised (a) to test the central hypothesis that the birth order/age discrepancy (older versus younger) between sisters would interact with family type (biologically disrupted vs. biologically intact) to predict the size of sibling differences in menarcheal age, and (b) to test for potential moderating effects of paternal dysfunction. Consistent with evolutionary causal models, the current sibling comparison study revealed that within biologically disrupted/father-absent families, younger sisters (who had more prolonged exposure to father absence) had earlier menarcheal ages than did their older sisters. The current study was therefore not only able to distinguish between the two competing classes of explanations, but its findings plausibly supported a causal rather than a noncausal explanation for the association between father absence and earlier pubertal timing in girls. Moreover, it revealed that this association is more nuanced than previously thought, because the accelerating effect of family disruption/father absence on daughters’ menarcheal timing was moderated by fathers’ functioning in the family. The current study has eight important limitations that can be used to direct future research. These limitations are detailed along with proffered suggestions (where applicable) for addressing them in future studies. Possible mediating mechanisms for the earlier menarcheal timing found in daughters from biologically disrupted/father absent families are also proposed. Finally, the implications of the current study’s findings for both parents and daughters in biologically disrupted/father absent families are discussed.
APA, Harvard, Vancouver, ISO, and other styles
19

Armstrong, Raymond. "The influence of Franz Kafka upon the theatre of Harold Pinter - with special reference to the struggle between father and son." Thesis, University of Ulster, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329479.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Latta, Amy Elizabeth. "Parents' division of childcare responsibilities: Predictors of fathers' childcare involvement and egalitarian attitudes." CSUSB ScholarWorks, 2004. https://scholarworks.lib.csusb.edu/etd-project/2533.

Full text
Abstract:
The current study was designed to examine whether adult childrens' reports of egalitarian parenting by their parents would influence the likelihood for egalitarian parenting behavior and gender role attitudes of the adult child. In general, results support the notion of intergenerational transmission of egalitarian parenting behavior. Individuals whose fathers were more involved in parenting reported greater father involvement in parenting their own children.
APA, Harvard, Vancouver, ISO, and other styles
21

Rowlette, Nefertiti L. "A study of the relationship between adolescent female interpersonal development in a relationship and the influence of the absence of a father in the home." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2013. http://digitalcommons.auctr.edu/dissertations/415.

Full text
Abstract:
This study examines the relationship between the interpersonal development in adult women during adolescence and the influence of the absence of a father and/or father figure in the home. The dependent variables were sexual attitude and behaviors and emotional value; which includes self-esteem. The independent variable was the absence of a father and/or father figure in the home. The dependent variable was operationalized by analyzing the influence of the absence of a father in the home in adolescent females in each area. A sample population of 40 women between the ages of 20 and 40 from the metro Atlanta Georgia area participated in this study. Each participant was asked to complete a 21-item questionnaire that was divided into four sections. The sections consisted of demographic information, emotional value/self-esteem, influence of fathers’ absence and sexual attitudes and behaviors. The study was able to determine that the absence of a father has an effect on sexual attitudes and behaviors and emotional value/self-esteem in adolescent female interpersonal development; however, the study could not determine the severity. The significance of this study is to understand the effect that an absent father has on the development of relationships in daughters as adolescents. The significance of this study is also to understand that the effect an absent father has on the development of relationships with a direct impact on sexual behaviors and emotional value/self-esteem that may be transitioned into adulthood.
APA, Harvard, Vancouver, ISO, and other styles
22

Kantor-Fish, Sandra. "Influences on paternal attitudes toward child rearing an exploratory investigation." CSUSB ScholarWorks, 1987. https://scholarworks.lib.csusb.edu/etd-project/189.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Bates, Randi Ann. "The influence of early life contexts on child self-regulation: A key to life course wellness." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546553067578868.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Biggart, Laura. "Fathers, work and family : psychosocial influences." Thesis, University of East Anglia, 2010. https://ueaeprints.uea.ac.uk/20535/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Pederson, Harold. "The influence of fathers on men's later relationships." Virtual Press, 1993. http://liblink.bsu.edu/uhtbin/catkey/897476.

Full text
Abstract:
Many authorities believe that our relationship with our parents has an effect on later relationships. Attachment theory and the more recent "men's movement" have focused on parents and their role in the development of the child. To study fathers' influence, 122 male undergraduate students were surveyed at a mid-sized Indiana university regarding their relationships with their father, friend, and romantic partner. The average age of the participants was 20.7 years, and the majority of the students were either Black (11.5%) or White (85.2%). Although 70.5% of the participants had married parents and 23.8% had divorced parents, most men (89.3%) referred to their biological father in completing the survey.The present study found that closeness to fathers while growing up did not predict closeness within the men's friendships. Father closeness was predictive of romantic relationship closeness but did not predict whether or not the men would be involved in such a relationship. Individual differences prevail, however, as information obtained from personal interviews indicated that some men believed their father influenced both their friendships and their romantic relationships.
Department of Counseling Psychology and Guidance Services
APA, Harvard, Vancouver, ISO, and other styles
26

Shapiro, Alyson F. "Examining relationships between the marriage, mother-father-baby interactions and infant emotion regulation /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/9182.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Perry, QuaVaundra A. "African American Father Influences on the Career Development of Emerging Adults." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc700069/.

Full text
Abstract:
The current study examined the paternal influences on the career development of African American emerging adults. While statistics have shown that many African Americans remain in the lower socioeconomic status bracket and have worse academic and career outcomes, still many African Americans are successful. The literature seems to attribute lack of success to low socioeconomic status, but attributes success to close family relationships. However, most of these studies have focused on maternal relationships and have neglected to include the influence of paternal relationships. Studies that have examined African American fathers have emphasized their negative attributes. Previous studies have also failed to consider the influence of other factors on the career development process such as ethnic identity and psychological adjustment. This study explored the influence of contextual, family, and developmental factors on the career process of African American emerging adults. One hundred sixty-seven African American undergraduate students ages 18 to 25 were recruited for participation in this study. Regression analyses indicated that the quality of the father-child relationship influenced career development, though not in the manner expected. High levels of father support enhanced well-being for individuals with high ethnic identity, but did not produce the same results for individuals with low ethnic identity. Well-being was a significant predictor of career maturity. Explanations, implications, and future directions are discussed.
APA, Harvard, Vancouver, ISO, and other styles
28

Green, Rachel Hava. "Nonresidential fathers' perceptions of the influence of their acrimonious divorces on their relationships with their children a project based upon an independent investigation /." Click here for text online. Smith College School for Social Work website, 2007. http://hdl.handle.net/10090/981.

Full text
Abstract:
Thesis (M.S.W.)--Smith College School for Social Work, Northampton, Mass., 2007
Thesis submitted in partial fulfillment for the degree of Master of Social Work. Includes bibliographical references (leaves 55-58).
APA, Harvard, Vancouver, ISO, and other styles
29

Gonzalez, Henry. "The Influence of Support from Romantic Partner Social Fathers and Nonresident Biological Fathers on Maternal Wellbeing in Mexican-American Families." Thesis, The University of Arizona, 2012. http://hdl.handle.net/10150/268512.

Full text
Abstract:
Paternal support is often linked to lower levels of maternal distress. However, this link is less established among the increasing numbers of Mexican-American families with a romantic partner social (RPS) father, that is, mothers' partners who are not formally identified as stepfathers. This study applied a bioecological systems framework to test linkages between RPS father support and maternal depression and parenting stress above and beyond ecological stressors, and to consider whether nonresident biological father support and general instrumental support moderate this link. Using data from the Fragile Families and Child Wellbeing Study, we analyze a subsample of Mexican-American mothers (N = 76) with three-year-olds, who are involved in a relationship with a RPS father and maintain contact with the nonresident biological father. Findings indicate that mothers who reported greater support from RPS fathers also reported lower depressive symptomatology when they also reported greater support from nonresident biological fathers or reported being in a recent relationship with the RPS father; mothers from more established relationships reported more depressive symptoms. However, mothers with lower perceived instrumental social support reported high maternal depressive symptoms, even while receiving support from RPS fathers. Neither source of support significantly predicted maternal parenting stress. Overall, our results reveal complex, interactive associations between these combined sources of support and maternal mental health in these increasingly common family structures.
APA, Harvard, Vancouver, ISO, and other styles
30

Kamboukos, Dimitra. "Adolescents and Their Fathers: Do Dads Make a Difference?" [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001147.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Stecy-Hildebrandt, Natasha. "The influence of workplace context on fathers’ use of parental leave in Canada." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43483.

Full text
Abstract:
Much research has examined fathers’ use of parental leave in the international context, focusing on the role of state policies and/or the influence of the family in shaping fathers’ leave decisions. Missing from these analyses is an examination of how the workplace context might shape fathers’ leave use. The current thesis attempts to fill this gap by investigating variation in fathers’ leave use and leave length in Canada as these relate to cultural and structural features of the workplace context. Using data from the nationally representative Survey of Labour and Income Dynamics, I run logistic regression and negative binomial regression to test the effects of occupational culture and structural features such as workplace sector and size on fathers’ use and length of leave, respectively. Results indicate a positive and significant effect for management and science-related occupations on leave use but this effect disappears upon the introduction of individual-level control variables. Other work-related predictors include large workplaces and having a permanent job, both of which positively and significantly predict leave use. Length of leave was not found to be related to workplace context. These findings point to the importance of structural features of the workplace in shaping fathers’ use of leave, but not necessarily the length of their leave.
APA, Harvard, Vancouver, ISO, and other styles
32

Rodriguez, Ariel. "Fathers, Mothers, Marriages, and Children: Toward a Contextual Model of Positive Paternal Influence." DigitalCommons@USU, 2000. http://digitalcommons.usu.edu/etd/2683.

Full text
Abstract:
This research explored positive paternal involvement in the lives of children within the broader familial context of marital dynamics and positive maternal involvement. The National Survey of Families and Households (NSFH) was used to obtain a longitudinal subsample of 582 first-married couples, as well as the wide range of variables necessary to explore this broader context of paternal influence. Three research questions guided the study: (I) What is the unique contribution of positive paternal involvement-with respect to positive maternal involvement and marital quality- in children's development? (2) How does the influence of positive paternal involvement interact with the influence of positive maternal involvement and marital quality to influence children 's development? (3) To what degree do fathers indirectly influence their children via the marital relationship and the mother-child relationship? Analysis demonstrated little evidence of fathers' unique contribution to children's aggressive/antisocial behavior, school problems, and other outcomes. Similarly, analysis demonstrated no indirect effects for paternal involvement across the 4-5 years span between Wave I and Wave 2 of the NSFH. Specifically, fathers' involvement did not indirectly affect children's outcomes via either the marital relationship or maternal involvement. However, limitations relating to internal reliability rendered findings questionable. Analysis also demonstrated a limited pattern of interaction effects between paternal involvement measures and marital and maternal variables. Specifically, Wave 2 paternal positive activities demonstrated meaningful interactions with maternal positive activities, marital happiness, and marital conflict, with respect to their influence on children's aggressive/antisocial behavior. interaction between paternal positive activities and marital variables indicated that paternal involvement is capable of interacting with other aspects of family context in ways which have both positive and negative consequences for children. Future research efforts address ing these questions should assess parental involvement in greater depth and breath, incorporating a framework capable of addressing both parental warmth and control. Similarly, future research should consider methods capable of addressing multicolinearity resulting from parallel paternal and maternal variables. Finally, future research should explore the various ways in which paternal involvement interacts with other sources of influence within families to impact the lives of children.
APA, Harvard, Vancouver, ISO, and other styles
33

LaGraff, Melissa R. "Exploring Work-Family Guilt: Mothers vs. Fathers and Its Influence on Parenting Practices." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/secfr-conf/2019/schedule/27.

Full text
Abstract:
One emotion experienced by working parents is guilt, yet this emotion is not often studied within the work-family domain. This presentation will serve to define work-family guilt drawing from empirical and qualitative research on the construct. This presentation will also delineate findings related to work-family guilt for mothers and fathers. Lastly, this presentation will highlight the scarce research into the relationship between work-family guilt and parenting outcomes. It has been suggested by scholars that work-family guilt may influence parenting behaviors which could cause negative consequences for children. This presentation will review two studies examining work-family guilt and parenting practices.
APA, Harvard, Vancouver, ISO, and other styles
34

Holmes, Allison Kay. "Low-income teen fathers' trajectory of involvement the influence of individual, contextual, and coparental factors /." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9540.

Full text
Abstract:
Thesis (Ph.D.) -- University of Maryland, College Park, 2009.
Thesis research directed by: Dept. of Human Development/Institute for Child Study. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
APA, Harvard, Vancouver, ISO, and other styles
35

White, Gerry Lenell. "A study of factors that influence parental involvement among African-American unwed fathers in Georgia." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2007. http://digitalcommons.auctr.edu/dissertations/587.

Full text
Abstract:
This study examines parental involvement with reference to accessibility, engagement, and responsibility to their children; and to what extent such an involvement is influenced by the father and/or the custodial parent’s behavior factors (history of companionship and offspring), peripheral factors (institutional and program participation), and personal characteristics (age, education, employment, occupation, income, etc.). The study sample consists of 163 African-American unwed fathers with at least one child out of wedlock for whom they must pay child support. All respondents participated in the study voluntarily. The sample selection was based on random drawings from electronic case files and referral sources to the Child Access and Visitation Program which is conducted by a community based social work organization serving metropolitan Atlanta, Georgia. The conceptual model of the study included series of structural equations leading to parental involvement. Data analysis was conducted at both descriptive and inferential levels. The inferential statistics included a series of multiple regression equations guided by the conceptual model in order to determine the model strengths, fitness of equation, and the strength of the predictors. Results show that characteristics of both parents significantly affect their history of companionship and offspring, which in turn affects their (parental) relationship. The parental relationship also seems to be influenced by institutional factors. Their parental relationship, in its turn, significantly affects the variable of program impact; and, father’s accessibility, engagement and responsibility toward his child(ren). Although a bidirectional relationship between program impact and parental involvement is proposed in the conceptual model, the data supported only a unidirectional impact of program impact on parental involvement. In sum, study results suggest that the parental relationship, the unwed father’s legal standing and child support status are critical predictors of parental involvement. The study findings may prove to be useful not only for policy makers in this area, but also to social science researchers, and social work practitioners, program managers, case work supervisors, father-custodial parent mediators, and obviously, the unwed fathers themselves.
APA, Harvard, Vancouver, ISO, and other styles
36

Neissi, Abdolkazem. "A model examining the influences of father absence, social support and maternal well-being on children's psychological adjustment." Thesis, Lancaster University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264678.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Bob, Tameka. "African American Sons' Perceptions of Their Fathers' Influence on Their Decision Whether to Pursue Higher Education." ScholarWorks@UNO, 2007. http://scholarworks.uno.edu/td/544.

Full text
Abstract:
The purpose of this study was to evaluate African American sons' perceptions of their fathers' influence on their decision whether to pursue higher education. This research has qualitatively explored the connection between fathers' influence and sons' decision whether to pursue higher education. Data collection consisted of a preliminary focus group discussion, two rounds of individual interviews, and a post focus group discussion. Themes that emerged from participants' stories were: (a) similar definitions of the term"father", (b) perceptions of fathers' educational level vs. being a role model, (c) thoughts regarding fathers' emotions and masculinity, (d) beliefs that fathers have an influence on sons' decisions whether to pursue higher education, (e) similar beliefs toward higher education, (f) justification for their level of education, (g) feelings of college being an inconceivable thought for some males, and (h) similar spiritual beliefs. Data obtained from interviews and focus group discussions resulted in The Black Father-Son Median Theory.
APA, Harvard, Vancouver, ISO, and other styles
38

Everley, Rachel S. "In Pursuit of Paternal Significance: Fathers' Influence on their Daughters' and Sons' Sexual Behaviors and Beliefs." VCU Scholars Compass, 2008. http://scholarscompass.vcu.edu/etd/1095.

Full text
Abstract:
The United States has the highest teen pregnancy and adolescent STD rates of any industrialized nation. Numerous factors are involved in adolescent sexual decision-making and the social-ecological framework suggests that there are multiple levels of influence on adolescent development, including familial. Utilizing survey data from the Virginia Abstinence Education Initiative (VAEI), this project specifically explores paternal influences on adolescent sexual behavior and beliefs by examining paternal residence in the home, perceived paternal figure sexual beliefs, and father-child relationship factors. Results indicate that paternal figures influence their daughters' and sons' sexual behaviors as well as beliefs. Differences in paternal figure influence across gender were found as well. Those endeavoring to develop more effective teen pregnancy prevention and abstinence education programs may consider the involvement of paternal figures in future efforts.
APA, Harvard, Vancouver, ISO, and other styles
39

Gonzalez, Henry. "Examining the Influence of Cultural Values on Pathways to Strengthen Responsible Fatherhood Among Mexican-Origin Fathers." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/613285.

Full text
Abstract:
Understanding the potential promotive effects of cultural values is particularly relevant for studies on Mexican-origin fathers who are at risk for exposure to multiple sociocultural contextual stressors. Studies, however, have yet to account for specific sociocultural contextual stressors that are particularly pertinent to Mexican-origin groups, such as immigrant- and ethnic-based discrimination and acculturative stress. According to the Family Stress Model, stressors undermine parenting through psychological dysfunction. Using a community sample of Mexican-origin biological fathers (N = 85) of 3 to 6 year-old children, this study aimed to: first, test the linkages between sociocultural contextual stressors and psychological distress; second, test the linkages between psychological distress and parenting practices; and lastly, consider whether cultural values, namely, familismo, respeto, and caballerismo, moderate these associations. Findings from hierarchical linear regression analyses indicated that immigrant-based discrimination stress was positively related to psychological distress only when fathers strongly endorsed familismo and respeto. In addition, a positive relationship between economic hardship and psychological distress existed only when fathers endorsed high levels of familismo. Findings also showed that the inverse relationship between psychological distress and supportive coparenting quality was substantiated when fathers endorsed low levels of familismo. An inverse link between psychological distress and father accessibility was also observed when fathers reported low levels of respeto. Examining how culturally specific risks and strengths inform future responsible fatherhood intervention work among Mexican-origin families is discussed.
APA, Harvard, Vancouver, ISO, and other styles
40

Hornstein, Eve. "Meditating Mothers And Fathers: Long-Term Meditators' Perceptions Of The Influences Of Mindfulness On Parenting." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/76867.

Full text
Abstract:
While there is a growing body of research to expand our theoretical and conceptual understanding of the multi-faceted construct mindfulness, the majority of studies have thus far focused on the efficacy of short-term mindfulness-based interventions to mitigate symptoms associated with myriad physiological and psychological conditions. Research investigating the relational effects of mindfulness within families is limited. This qualitative study examined eight long-term meditators' perceptions of how their mindfulness practice influenced their parenting behavior. Using thematic analysis, the central themes to emerge included (1) increased communication skills, (2) decreased emotional reactivity, (3) increased perspective-taking, and (4) greater self-understanding. Limitations of the study as well as future research and clinical implications are also discussed.
Master of Science
APA, Harvard, Vancouver, ISO, and other styles
41

Richards, Virginia L. (Virginia Lynn). "Reciprocal Influences of Temperature and Copper on Fathead Minnows (Pimephales promelas)." Thesis, University of North Texas, 1994. https://digital.library.unt.edu/ark:/67531/metadc278235/.

Full text
Abstract:
Acclimation temperature had a significant effect on the lethality of copper to fathead minnows in replicated 96-hour lethality tests. Lowest median lethal copper concentrations (LC50) were recorded at 12 and 22°C, with LC50s at 5 and 32°C at least 140 μg/1 higher. This research found LC50 copper concentrations in the 300 to 500 μg/1 range and a polynomial relationship between LC50s and acclimation temperature. Following a 24-hour exposure to three sublethal concentrations of copper, critical thermal maxima (CTMax) were tested in minnows acclimated to four temperatures. Sublethal exposure to copper significantly decreased the CTMaxs relative to controls at three of the four temperatures. Control CTMaxs ranged from 28.6 to 40.4°C and increased 0.46°C for each 1°C increase in acclimation temperature.
APA, Harvard, Vancouver, ISO, and other styles
42

Latiri, Inès. "Le Poétique et l’Idéologique dans la poésie contemporaine américaine d’origine arabe : étude de « 19 Varieties of Gazelle » de Naomi Shihab Nye, « In the Country of My Dreams » de Elmaz Abinader, « The Captal of solitude » de Gregory Orfalea et « Before our eyes » de Lawrence Joseph." Thesis, Paris 3, 2010. http://www.theses.fr/2010PA030001.

Full text
Abstract:
Volonté de présenter la poésie de 19 Varieties of Gazelle de Naomi Shihab Nye, In the Country of My Dreams de Elmaz Abinader, The Capital of Solitude de Gregory Orfalea et Before Our Eyes de Lawrence Joseph pour mettre en lumière les approches idéologiques, cette thèse s’appuie sur plusieurs axes pour synthétiser la vision de ces poètes américains, enfants d’immigrants arabes. Les recueils préfigurent eux-mêmes ces axes. Aussi proposons-nous d’aborder l’impact du père chez ceux qui écrivent, l’impact de l’identité arabe sur la relation à l’autre, qu’il soit américain ou arabe, et sur leur idéologie politique et religieuse
Willing to introduce the poetry of 19 Varieties of Gazelle by Naomi Shihab Nye, In the Country of My Dreams by Elmaz Abinader, The Capital of Solitude by Gregory Orfalea et Before Our Eyes by Lawrence Joseph to shed light on the ideological approaches, this thesis emphasizes several directions to synthesize the vision of those American poets, children of Arab immigrants. The very anthologies prefigure those directions. Thus, we suggest to tackle the impact of the father on those who write, the impact of the Arab identity on the relation to the other, whether American or Arab, and on their political and religious ideology
APA, Harvard, Vancouver, ISO, and other styles
43

Sitton, Michael S. "“DAD, DO YOU WANT TO PLAY WITH ME?” THE IMPACT OF FATHERS WHO MAKE TIME FOR PLAY." UKnowledge, 2018. https://uknowledge.uky.edu/hes_etds/59.

Full text
Abstract:
With an increase in the pace of life in the United States, there comes a recognition of the importance of prioritizing time, especially for fathers. Of the two-thirds of children who live with their father, only a percentage of them have fathers who report regular play time with their children. However, literature in the field does not explain specifically whether or not this play between father and child influences the child’s later risk taking behaviors in high school. Using data from the 2003 Fragile Families and Child Wellbeing Study (FFCWS), waves 3, 4, and 6, this quantitative study sought to understand the connection between a father’s play with his young children and the number of risk taking behaviors exhibited by those children in high school. The results from this study indicate that high school students who had fathers that played with them when they were young, as well as high school students who had fathers that did not play with them when they were young both exhibited similar rates of risk taking behaviors.
APA, Harvard, Vancouver, ISO, and other styles
44

Jones, Merle B. "What is the influence of self-image and perceived parenting role expectations on adolescent fathers' perceived role performance?" Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0006/MQ45067.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Dibben, Colin. "Influence and infection : Georges Bataille and the fate of critique." Thesis, University of Warwick, 1994. http://wrap.warwick.ac.uk/4457/.

Full text
Abstract:
The thesis argues for the pertinence of the Kantian 'topography' of the mental faculties and the power of critical thought in assessing the philosophical importance of Georges Bataille' s writing. Such an argument runs counter to the received tradition of interpretation of Bataille's work, which has, given the influence of Derrida, construed these texts as works of phenomenological philosophy. The thesis shows that Derrida's interpretation must, by virtue of its exclusivity, be incorrect. Bataille is concerned with the trajectory of thought - that is with the dynamics or energetics of thought - rather than with the articulation of the logic of representation, an articulation which characterises phenomenological thinking. The thesis argues that Bataille's concern with the energetics of thought represents an extension of Kant's critical project. This relation is borne out by the new uses to which he puts the Kantian terminology of continuity, transcendence, subjectivity and communication. Rather than simply exaggerating the power of critique, which Kant countenanced as an influence on the mental processes, Bataille dissolves the critical difference and fuses the status of all thought with its energetic and thermic trajectory. For Bataille, thought is associated with the free contagions or infections of thermic communication. Thus Bataille's relation to Kojeve and Hegel is -only part of a wider move in designating the energetic nature of critique over and above its restricted and conceptual uses. Critique does not survive this definition. The thesis shows the nature of the critical project as it is articulated by Kant in the critiques of pure reason and judgement and how Bataille's major concepts come to inhabit this terrain whilst subjecting themselves and it to the dissolution which is the result of the rational groundlessness of critique. Bataille's treatment of this topography shows that it can be used to infer the attributes of a philosophy of intensities and change.
APA, Harvard, Vancouver, ISO, and other styles
46

Philip, Diana Liz. "The Influence of Synthetic Microenvironments in Determining Stem Cell Fate." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1627669247178055.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Rocha, Marcelo da Silva. "Influencia do fator de atrito no calculo do transiente hidraulico." [s.n.], 1998. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258112.

Full text
Abstract:
Orientador: Jose Geraldo Pena de Andrade
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil
Made available in DSpace on 2018-07-24T03:13:34Z (GMT). No. of bitstreams: 1 Rocha_MarcelodaSilva_M.pdf: 4293826 bytes, checksum: 9aa66fedc768ae729791f17e82ed9e9f (MD5) Previous issue date: 1998
Resumo: Os transientes hidráulicos, como são chamadas as ondas de pressão (positivas ou negativas) geradas em um sistema hidráulico, devido à ação de "manobras" dos componentes deste sistema, podem ocorrer em amplitudes e freqüências tais que podem causar a ruptura ou colapso de elementos da instalação como: tubos, válvulas, etc. Muitos artifícios de controle, os quais por si só alteram a velocidade do fluxo, causando assim, eventos transitórios secundários que respondem à pressão do sistema. Assim, a confiabilidade das simulações realísticas de comportamento dos sistemas, dependem da precisão na avaliação das variações da vazão, pressão e freqüência dos ciclos de onda. Uma das imprecisões associadas à modelação do fenômeno transitório está no uso de uma formulação quasi-estática para o termo de atrito, a qual é válida somente para regimes de fluxo permanente. Este trabalho faz uma comparação entre os resultados obtidos nos dois modelos computacionais de cálculo do transitório aplicando o método elástico, visando promover análise sistemática da eficiência e precisão proporcionada pela utilização do termo de atrito, o qual incorpora o grau de dependência da velocidade, efeitos de inércia e compressibilidade do fluido em uma simples e generalizada estrutura. Para tal, utiliza como base para a formulação, um modelo proposto por VARDY et a1.(1993) que faz uso da formulação do termo de atrito válido para o regime transitório turbulento, anteriormente proposta por ZIELKE (1968) e válida somente para o regime laminar de escoamento
Abstract: The hydraulic transients, as are called the pressure waves (positive or negative) generated into the pipes by component settings, can be large and occur with frequencies enough to cause rupture or collapse of the systems components as : pipes, valves, etc. Many contral devices, which themselves alter the flow velocity, and therefore case secondary transient events, respond to system pressure. Thus, relability of realistic simulation of system behavior depends on how accurately are the flow and pressure changes and the frequency of cydes predictions. A cause of this modeling error lies in the use of quasi-steady friction equation which is only valid for steady flows. This research will compare results obtained of two computing models and applying the elastic method to promote a systematic analysis of efficiency and accuracy made by friction equation uses, which incorporates rate dependent velocity, shear and compressibility effects within a single, generalized framework
Mestrado
Recursos Hidricos
Mestre em Engenhria Civil
APA, Harvard, Vancouver, ISO, and other styles
48

Stewart, Brandy D. "The dominating influence of calcium on the biogeochemical fate of uranium /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Luang-In, Vijitra. "Influence of human gut microbiota on the metabolic fate of glucosinolates." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/39366.

Full text
Abstract:
Glucosinolates (GSLs) are secondary metabolites predominantly found in cruciferous vegetables such as broccoli, brussel sprout, cabbage and cauliflower which upon chopping and chewing will release the indigenous plant myrosinase enzyme that catalyzes the hydrolysis of GSLs. This hydrolysis releases a range of breakdown products including isothiocyanates (ITCs), which have been implicated in the cancer-protective effects of cruciferous vegetables. Certain human gut bacteria are able to metabolize GSLs and produce ITCs for human health benefits. In this work, six GSL-metabolizing bacterial strains were isolated from human faecal sample and identified. Most bacteria were capable of producing both nitriles (NITs) and ITCs from the metabolism of GSLs however Enterococcus sp. C213 and Enterococcus faecium KT4S13 produced only NITs. Enterococcus casseliflavus NCCP-53, Escherichia coli O83:H1 NRG 857C and Lactobacillus agilis R16 were able to metabolize different types (allyl, aromatic, methylthioalkyl, methylsulfinylalkyl and indolyl) of GSLs differently over 24 h of in vitro anaerobic fermentations. For all GSLs, ITC production seemed to peak between 4 and 8 h of incubation and then declined due to the inherent instability of ITCs in culture broths and buffers. In contrast, NIT productions gradually increased over time and remained relatively constant. The total percentage products from each GSL metabolism in all three bacteria never reached 100%. Interestingly, E. coli O83:H1 NRG 857C produced methylthioalkyl ITCs and NITs from methylsulfinylalkyl GSLs while E. casseliflavus NCCP-53 produced only methylsulfinylalkyl ITCs from the same GSLs. This difference was due to reductase activity in E. coli O83:H1 NRG 857C intact cells and cell-free extracts that biotransforms the sulfoxide groups of methylsulfinylalkyl GSLs to the sulfide groups. The reductase enzyme is yet to be identified at the gene and protein level, however it has been characterized using cell-free extracts in this work. This reductase is inducible by GSLs, oxygen-independent and requires Mg2+ ion and NADP(H) as co-factors for its activity with optimum pH and temperature at pH 7.0 and 37°C, respectively. Arylsulfatase activity was also detected in this bacterium. The corresponding recombinant SUL2 enzyme (57 kDa) of E. coli O83:H1 NRG 857C expressed in BL21(DE3) exhibited arylsulfatase activity by desulfating synthetic p-nitrocatachol sulfate substrate with optimum pH and temperature at pH 6.0 and 30°C, respectively. In addition, GSL-sulfatase activity was detected in crude extracts by being able to desulfate different intact GSLs to produce desulfo-glucosinolates (DS-GSLs) with less efficiency in comparison with the commercially available snail sulfatase from Helix pomatia. The catalytic efficiency of recombinant SUL2 enzyme for GSLs in descending order is as follows; sinigrin > glucoerucin > gluconasturtiin > glucoiberin. The DS-GSLs (except DS-glucoraphanin) then act as substrates for the recombinant GH3 enzyme defived from E. casseliflavus NCCP-53 to produce the corresponding NIT products in NB broths and the buffer with the presence of 5 mM Fe2+ ions. This enzyme (79 kDa) showed β-O-glucosidase activity for p-nitrophenyl β-D-glucopyranoside with optimum pH and temperature at pH 7.0 and 37°C, respectively. NIT productions only occurred from the metabolism of intact GSLs in bacterial culture broths, but not in the buffers unless 5 mM Fe2+ ions are present as co-factors. Putative bacterial GSL-degrading enzymes responsible for ITC and NIT productions from GSL metabolisms are inducible by GSL in resting cells experiments. By using two-dimensional gel electrophoresis (2-DE) and liquid chromatography mass spectrometry (LC-MS/MS) for the comparative analysis between proteins obtained from cultures of L. agilis R16 and E. coli O83:H1 NRG 857C with and without GSL supplementation, upregulated/distinct proteins that may be involved in the metabolism of GSLs by these bacteria were identified. These proteins belong to (sugar) transport system, carbohydrate metabolism especially kinases and oxidoreduction process. To date, bacterial GSL-degrading enzyme is yet to be identified.
APA, Harvard, Vancouver, ISO, and other styles
50

Punsly, Kathryn. "The Influence of Nietzsche and Schopenhauer on Hermann Hesse." Scholarship @ Claremont, 2012. http://scholarship.claremont.edu/cmc_theses/347.

Full text
Abstract:
In my first chapter, I will discuss the mark of Cain at greater length and introduce the idea of daemon. In the second chapter, I will discuss how it functions as part of Nietzschean active nihilism. Finally, in the third chapter, I will explore the problem of somberness and the problem of fanaticism, and see how Hesse tries to resolve these two problems.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography