• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 5708
  • 3132
  • 1219
  • 538
  • 529
  • 413
  • 201
  • 122
  • 116
  • 110
  • 106
  • 82
  • 73
  • 73
  • 73
  • Tagged with
  • 14876
  • 3936
  • 2638
  • 1523
  • 1356
  • 1253
  • 1158
  • 1094
  • 944
  • 860
  • 765
  • 756
  • 688
  • 669
  • 663
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
501

An Examination of the Impact of Preconception Health on Adverse Pregnancy Outcomes through the Theoretical Lens of Reciprocal Determinism

Buie, Mary Elizabeth 01 January 2011 (has links)
Statement of Purpose The purpose of this study is to examine the impact of preconception health on adverse pregnancy outcomes through the theoretical lens of reciprocal determinism. Thus, this study aims to develop a preconception health conceptual framework that accounts for the interactive relationships among behavior, the environment, and the person. Rationale for the Study Women may not recognize a pregnancy until the first or second missed menstrual cycle, a full four to eight weeks or more after conception. Once a woman realizes the possibility of a pregnancy, it takes further time to confirm the pregnancy with a home pregnancy kit or a visit to the health care provider. In that time period, the woman may have unknowingly exposed her embryo to nutritional deficiencies, over-the-counter drugs, tobacco, alcohol, or other toxins. Because nearly half of all pregnancies are unintended, yielding about three million unintended pregnancies in the U.S. annually, there is a need to shift care to an earlier period in a woman's life cycle with greater potential to prevent birth defects and other adverse pregnancy outcomes, also known as preconception care. The preconception health movement began with the rationale that many adverse pregnancy outcomes are determined prior to prenatal care initiation. Thus, in addition to prenatal care, the need for preconception health arose. The empirical literature makes a strong case for the benefit of individual preconception health components and their effects on adverse pregnancy outcomes. However, the actual effectiveness of collective preconception health in reducing adverse pregnancy outcomes has not yet been demonstrated. In an effort to evaluate the impact of preconception health on maternal morbidity, infant morbidity, and infant mortality, this study examined the reciprocal relationships between environmental, personal, and preconception behavioral factors and their associations with adverse pregnancy outcomes. Methods A secondary data analysis was conducted using the Pregnancy Risk Assessment Monitoring System (PRAMS) data from 2005-2008 to test a preconception framework. Project 1 examined all variables in the preconception framework among the following states: Maine, New Jersey, Ohio, and Utah. Project 2 examined all variables except of two among all PRAMS-participating states. All of the variables in the proposed framework were derived from questions in the PRAMS survey or from PRAMS-linked birth certificate data. The research questions posed in this study were resolved through the path analyses of reduced and full iterations of the preconception framework in Projects 1 and 2. Results In Project 1, list-wise deletion of missing data resulted in a decrease from the original 27,933 participants to 12,239 participants. In Project 2, this action resulted in a decrease from the original 200,008 participants to 128,551 participants. The analysis of the reduced frameworks for both projects revealed extremely low R-squared values (1.1% or less). Subsequent analyses examining the full framework in Projects 1 and 2, as well as an additional post hoc analysis with supplementary PRAMS variables, resulted in R-squared values of 13.1%, 11.4%, and 30.5%, respectively. Implications This study examined the impact of preconception health behaviors on adverse pregnancy outcomes through the theoretical lens of reciprocal determinism. Preconception health behaviors alone accounted for a negligible portion of the variance associated with adverse pregnancy outcomes. As hypothesized, preconception health behaviors work in concert with environmental factors, personal influences, prenatal and natal factors. Significant predictors supported in the literature included lower socioeconomic status, pregnancy intention, pregnancy history, older maternal age, black maternal race, Hispanic ethnicity, overweight maternal BMI, tobacco use prior to pregnancy, maternal complications, hospitalization during pregnancy, later prenatal care initiation, fewer prenatal care visits, plurality, and cesarean section. Even so, there is a large portion of the variance in adverse pregnancy outcomes that is not accounted for, and further examination is required.
502

An Examination of the Role of Parental Influences on Girl’s Development of Embodiment

Pelletier, Marianne 24 July 2012 (has links)
Adolescence is marked with significant changes in how girls feel and act within their bodies, and is considered a special risk period for body image disruptions. Cross sectional quantitative research within this area suggests that parents represent an important contextual and developmental contributor to body image. The present study aimed to address gaps in previous research by investigating parental influences, including both protective and risk factors, on girls’ embodied experiences through utilizing a prospective qualitative design with a diverse sample of twelve girls, ages 9-18, interviewed annually over four years. Results revealed the presence of both protective and risk factors related to embodiment experiences within the parental relationships, including aspects of relational qualities, self-care, evaluative gaze and social location. Results are discussed in relation to Bronfenbrenner’s Ecological Systems Theory and to previous research. The implications for future research are also discussed.
503

Sergančio pastato sindromas, jo paplitimas ir sąsajos su sveikata / The incidence of sick building syndrome and its relation to health

Loiba, Romuald 02 September 2008 (has links)
Pasaulinės Sveikatos Organizacijos ekspertų duomenimis, besivystančiose šalyse apie 30 proc. pastatų - naujai pastatytų ir rekonstruotų - turi vadinamąjį sergančio pastato sindromą (SPS). Tokiuose pastatuose ilgai būnantys žmonės pradeda skųstis įvairiais sveikatos negalavimais. Spėjama, kad šie simptomai pasireiškia 10-30 proc. tokiuose pastatuose dirbančių žmonių. Darbo tikslas. Įvertinti darbuotojų nusiskundimų sveikatos simptomais ir darbo sąlygom pobūdį bei dažnį ir surinktus duomenis analizuoti atsižvelgiant į lytį, amžių, pareigas. Nustatyti sergančio pastato sindromo atsiradimą sąlygojančias priežastis. Tyrimo metodika. Tyrimas atliktas taikant internetinę apklausą. Anketoje buvo pateiktas 51 klausimas. Iš viso klausimyną užpildė 302 respondentai. Tai buvo suaugę, dirbantys asmenys. Rezultatai. Turinčių nusiskundimų darbo sąlygomis moterų skaičius buvo didesnis negu vyrų. Moterys dažniau jausdavo įvairius simptomus būdamos darbo vietoje. Administracines pareigas užimančių asmenų tarpe buvo mažiau besiskundžiančių darbo sąlygomis. Jie rečiau jausdavo įvairius simptomus lyginant su kitas pareigas užimančiais asmenimis. Taip pat turėjo didesnes tinkamų darbo aplinkos parametrų užtikrinimo galimybes. Reikšmingų skirtumų tarp skirtingų amžiaus grupių nebuvo nustatyta. Duomenys buvo analizuojami naudojant statistinės duomenų analizės programą „SPSS“. Išvados. Moterys turėjo daugiau nusiskundimų darbo sąlygomis bei darbo vietoje dažniau jausdavo įvairius simptomus lyginant... [toliau žr. visą tekstą] / According to the data of Word Health Organization, about 30 percent of the buildings in the developing countries, both newly-built and reconstructed, have the so-called sick building syndrome (SBS). The people who spend an extended period of time in such a building tend to begin having various health complaints. It is assumed that from 10 to 30 percent of the people who work in such buildings start having such complaints. Aim of the study: to examine the nature and the frequency of the workers’ complaints regarding the health and working conditions, and to analyze the collected data accounting for such variables as sex, age and occupation; to determine the reasons which condition the occurrence of the sick building syndrome. Methods. The research was conducted using the method of online questionnaire. The questionnaire consisted of 51 questions and was completed by 302 respondents. All of the respondents were working adults. Results. The number of complaints about working conditions received from women exceeded that received from men. Women reported feeling various symptoms while at work more frequently. The number of complaints about working conditions from those who held administrative positions was lower. The people from this group reported feeling various symptoms less frequently, in comparison with the people who held other positions. They also had more possibilities to assure suitable parameters of the working environment. There were no significant differences among... [to full text]
504

An Examination of the Role of Parental Influences on Girl’s Development of Embodiment

Pelletier, Marianne 24 July 2012 (has links)
Adolescence is marked with significant changes in how girls feel and act within their bodies, and is considered a special risk period for body image disruptions. Cross sectional quantitative research within this area suggests that parents represent an important contextual and developmental contributor to body image. The present study aimed to address gaps in previous research by investigating parental influences, including both protective and risk factors, on girls’ embodied experiences through utilizing a prospective qualitative design with a diverse sample of twelve girls, ages 9-18, interviewed annually over four years. Results revealed the presence of both protective and risk factors related to embodiment experiences within the parental relationships, including aspects of relational qualities, self-care, evaluative gaze and social location. Results are discussed in relation to Bronfenbrenner’s Ecological Systems Theory and to previous research. The implications for future research are also discussed.
505

Insights into the molecular interactions of the neurogenic basic helix-loop-helix transcription factor, neuroD2, and the mechanism of regulation of a key target, RE-1 silencing transcription factor /

Ravanpay, Ali Cyrus, January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (leaves 61-63).
506

Amino terminal region of FOXP3 coordinates the regulation of transcriptional targets in regulatory and effector T cell lineages /

Lopes, Jared Emery. January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (p. 133-145).
507

Natural Course of Adolescent Insomnia: Patterns and Consequences

Roane, Brandy Michelle 08 1900 (has links)
Approximately 2-11% of adolescents report chronic insomnia. The study used an archival data set from ADDHealth that assessed adolescent health and health-related behaviors. Adolescents (N = 4102) provided data at baseline (Time 1) and at 1-year follow-up (Time 2). Participants were excluded if no ethnicity, gender, or insomnia data were given at Time 1 or 2. Females were more likely to report insomnia than males at Times 1 and 2. In addition, adolescents with remitted insomnia were significantly younger than adolescents without insomnia at Times 1 and 2. Analyses found a prevalence of 9.6%, a remittance of 6.2%, an incidence of 4.4%, and a chronicity of 2.9%. At Time 1 and 2, AWI were significantly more likely to have depression, suicidal behaviors, and behavioral problems in school than AWOI. At Time 2, incidence and chronic insomnia increased the risk of depression, suicidal behaviors and behavioral problems in school. Risk and protective factors analyses indicated psychological counseling was associated with both remitted and chronic insomnia and depression was associated with incidence insomnia.
508

The Influence of Economic, Social, and Physical Factors upon Normal Development of Pupils in Two Wichita Falls Elementary Schools

Cowan, Charlie Weldon January 1948 (has links)
Children who learn best are physically, mentally, and emotionally adequate. In conjunction with this fact, this study attempts to show the relation that exists between the children from uncomfortable, unsatisfactory environments and those with comfortable, satisfactory environments.
509

Fältstudier av produktionstidplan på Kv. Solägget / Field studies of the production schedule at the block Solägget

Lindgren, Linnea January 2010 (has links)
Under drygt två månader har produktionen vid JM Entreprenads projekt Kv. Solägget följts för att med utgångspunkt i projektets produktionstidplan, aktuell verklig position, diverse dokument samt i intervjuer avgöra varför fortskridandet eventuellt avviker från det planerade, där främst förseningar var intressanta. Kv. Solägget genomförs på generalentreprenad åt JM AB och följer således de arbetsmetoder som används inom JM AB. En väsentlig skillnad mellan JM AB och JM Entreprenad är att JM Entreprenad inte är lika väl inkörda på gällande enhetstider och rutiner som JM AB:s hantverkare är. Genom att i tidigt skede sätta in ytterligare resurser än vad som var planerat i kalkylen undvek man att under tiden för min fältstudie uppnå en avvikelse som motsvarar en försening och snarare lyckades arbeta in ett försprång på upp till två veckor. För att möjliggöra en produktion utan förseningar behandlar rapporten hårda, mjuka och yttre faktorer med en betydelsefull utgångspunkt i vikten av att åstadkomma en väl utarbetad planering inför produktionsstart och på så sätt i ett tidigt skede ta ställning till möjliga faktorer som kan komma att påverka avstämningarna mot produktionstidplanen på ett negativt sätt. / During around two months the production of the project of JM Entreprenad named the block Solägget has been followed contraining to the basis of the production schedule, the current actual position, documents of the project and also interviews to determine why the progression may be different from the planned, why the mainly interesting were to analyze the delays. The block Solägget is implemented on a general contractor for JM AB and therefore the project follows the practices of JM AB. One significant difference between JM AB and JM Entreprenad is that JM Entreprenad isn´t as used to the current unit times and routines as JM AB are. By the early deployment of additional resources than what were planned in advance the delays were avoided during the period of my field study and instead JM Entreprenad managed to work up a lead of up to two weeks. To enable a production without any delays this report treats hard, soft and external factors with an important basis of the importance of achieving a well-established planning before starting any production and in that way consider possible factors that may affect the reconciliation of the production schedule in a negative way. / 2010:12
510

Suicide Deaths: Do Socioecological Factors Differ by Rurality

William Thomas Felix (11197254) 28 July 2021 (has links)
<p><b>Objectives</b> The study will assess patterns of known individual, interpersonal, and community-level circumstances leading to suicide to understand how these factors can co-occur. These patterns will help focus on prevention strategies.</p><p><b>Methods</b> Data was collected from the Iowa Violent Death Reporting System, Census data from the American Community Survey, and 2010 rural-urban commuting area codes from the Economic Research Service. The study consisted of three steps. The first step latent class analysis was conducted on data from suicide deaths from Iowa in 2016-2018 to create classes of patterns of circumstances leading to suicide. The second step maximum probability assignment was used to assign the sample of 1,276 to the created latent classes. Finally, in the third step bivariate regressions were ran to understand the relationship between the created latent classes and the rurality variable (nonmetropolitan vs metropolitan).</p><p><b>Results </b>Five latent classes of distinct patterns of suicide factors emerged. Class 1 is physical health problems living in areas that are average on all community-level variables. This class 1 is seen to happen with higher odds in nonmetropolitan areas. Class 2 is interpersonal problems in areas where living alone is high. This class 2 happened with higher odds in nonmetropolitan areas. Class 3 is mental health problems or depressed mood with no legal problems in areas that had lower educational attainment. This class 3 did not indicate greater odds based on rurality. Class 4 is history of mental health treatment in well-off areas. This class 4 was seen to happen with higher odds in metropolitan areas. Class 5 is substance abuse problems in poorer areas. This class 5 did not indicate greater odds based on rurality. All the classes shared a common theme of experiencing mental health issues or being in a depressed mood.</p><p><b>Conclusions </b>Suicide is a complex concern that could be classified into several classes that have distinct patterns of suicide factors. These classes and patterns help with identifying what services and interventions are needed in certain communities. Overall, providing support in regards to mental health as well as intervening in childhood to support positive development may provide substantial mitigation to the odds of committing suicide. In investigating these patterns, future prevention and intervention effort can take into consideration these patterns to tailor to the individual and the environments where they live.</p>

Page generated in 0.0597 seconds