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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
151

A High Order Correction of the Energy of a One Dimensional Model of an H2+ Molecule

Humfeld, Keith Daniel 05 February 1999 (has links)
The ground state electron wavefunction of some molecules has a non-zero angular momentum about the internuclear axis. Molecular rotational momentum can couple with this angular momentum, splitting the energy degeneracy of the two directions of motion about the internuclear axis. Performing a Born-Oppenheimer approximation of such a system will break the relevant energy degeneracy at eighth order. This degeneracy breaking is known as L-doubling. / Master of Science
152

The Reliability and Validity of the Boatwright-Bracken Child Attention Deficit Scales: Child and Parent Versions

Thomas, Erica S. 01 May 2004 (has links)
This study examined the psychometric properties of a new measure of attention-deficit/hyperactive disorder (ADHD) symptoms , the Boatwright-Bracken Child Attention Deficit Scale (BCADS), self- and parent-report forms. Parents and children with and without ADHD completed the BCADS to determine the reliability and validity of the BCADS . The BCADS-Child and Parent had high internal consistency reliability . The total sample parent-selfratings were moderately correlated, indicating a typical level of cross informant agreement. Results indicate that the BCADS differentiates children with ADHD from children without ADHD. Children and parents in the clinical sample reported more symptoms of ADHD than those in the comparison sample. Children with and without ADHD reported fewer symptoms of ADHD than their parents. Parents' ratings on the BCADS were moderately to highly correlated with an existing measure of ADHD. Overall, the results indicate the BCADS-Child and Parent forms are internally reliable and valid measures to use when assessing ADHD.
153

Fluorescence Spectroscopy Prediction of Fish Freshness / 蛍光分光による魚の鮮度予測

Liao, Qiuhong 24 November 2017 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(農学) / 甲第20768号 / 農博第2251号 / 新制||農||1054(附属図書館) / 学位論文||H29||N5088(農学部図書室) / 京都大学大学院農学研究科地域環境科学専攻 / (主査)教授 近藤 直, 教授 清水 浩, 教授 飯田 訓久 / 学位規則第4条第1項該当 / Doctor of Agricultural Science / Kyoto University / DGAM
154

An analysis of user comfort for wearable devices and their impact on logistical operations

Smith, Eboni 13 December 2019 (has links)
This dissertation is comprised of three different studies researching user perception of comfort when using wearable technology. The first study investigated the use of altered smart glasses to study comfort, preference, and performance while executing common logistical order picking and shipment putting tasks. The impact of design type (weighted front, side, or back) was investigated using comfort rating scales (CRS). There was no significant difference in device preference regardless of task type. Despite the side weighted arrangement being the most comfortable, the participants still felt uncomfortable. The second study explored modifying the weights to the six dimensions of the CRS to create a comfort score. There was a strong correlation between the weighted and unweighted comfort score. Participants identified Harm as the most important dimension. The results suggest that the participants valued importance did not make a difference in the comfort score. The final study examined the use of a wand scanner and two wearable devices to study comfort and performance while executing common logistical shipment putting tasks. The impact of the wearables was investigated using the CRS. Participants identified the ring and wand scanner to be the most comfortable and the glasses as the least comfortable device. The CRS scores showed that participants became more uncomfortable using the smart glasses over time during the completion of the putting task. These three studies provided insight for industry from a comfort perspective that will be helpful when trying to incorporate wearable technology in the work place.
155

Personally satisfying: Using Personal Style Scales to enhance the prediction of career satisfaction

Hees, Charles 01 December 2010 (has links)
The present study continues the long line of research addressing Person-Environment fit started by Frank Parsons a century ago and the construct of career satisfaction. Previous research emphasized Holland themes and specific occupational scales, with this study being the first to evaluate the higher order of personal style relating to job satisfaction. This study examined the capacity of the General Occupational Themes (GOTs) and Personal Style Scales (PSSs) of the 2005 Strong Interest Inventory in predicting job satisfaction across 8 individual samples comprising 4,938 working adults. Sequential discriminant function analyses demonstrated that sets of hypothesized PSSs significantly distinguished between satisfied and dissatisfied workers beyond the six Holland themes in all 8 occupational samples. This research provided validation and support for the newly added Team Orientation PSS. It further provided support for demographic variables related to job satisfaction, including ethnicity, gender, age, and the reason for testing.
156

Self-Regulation in New Domains: The Reliability and Validity of Scales Measuring Cognitive and Interpersonal Regulation

Perkins, A., Becker, J. V., Stinson, Jill D. 01 October 2013 (has links)
No description available.
157

Correlates of health perceptions among individuals with rheumatoid arthritis

Guccione, Andrew A. January 1988 (has links)
Thesis (Ph.D.)--Boston University / PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you. / The purposes of this study were to describe the relationship of sociodemographic and biomedical characteristics to health perceptions among individuals with rheumatoid arthritis (RA) and to identify which functional measures are associated with one's health perceptions. Data were extracted on 395 individuals with classical or definite RA for a secondary data analysis. These data had been collected between 1978 and 1982 using the Arthritis Impact Measurement Scales (AIMS), a reliable and valid self-administered questionnaire on health status. Sociodemographic information included age, sex, current marital status, occupation, income, and engagement in a productive role. Biomedical data included a respondent's disease duration, disease severity, and comorbid conditions. A dependent variable which classified health perceptions (HP) was constructed from two AIMS questions concerning self-assessed current health and belief in the ability to resist illness. Using subjects' sociodemographic characteristics and biomedical indicators as determinants of health perception classifications (HPC), repondents were grouped into nodes through a recursive partitioning technique (CART). Income, disease activity, current marital status, age, and comorbidity were identified by CART as important and interactive determinants of HPC. In the second phase of analysis, differences in function between HP groups on the nine AIMS scales were explored using subjects' self-assigned HP groups, while controlling for sociodemographic and biomedical characteristics and their potential interactive effects as they had been identified by the CART algorithm. Analysis of these differences demonstrated that the explanatory sociodemographic and biomedical variables used in this study both explained and masked significant differences between HP groups on certain functional measures. Finally, the analysis determined which functional measures were most associated with self-assigned HP using a stepwise logistic regression model. Anxiety, physical activity and household activity formed an overall explanatory model of HP. Physical activity and depression were associated with current health perceptions. Perceived resistance to illness was related to subjects' levels of anxiety and household activity. / 2031-01-01
158

Distribution and spread mechanisms of Chinese tallow (Triadica sebifera) at multiple spatial scales within forests in the southeastern United States

Yang, Shaoyang 09 August 2019 (has links)
The coastal plain of the southeastern United States is historically wet pine savannahs, prairie, and hardwoods. However, many exotic species have invaded this area and become a serious threat to native forest ecosystems. Among those exotic species, Chinese tallow (Triadica sebifera) has become one of the most pervasive tree species in the southern coastal states, including Alabama, Mississippi, Louisiana, and Texas. Therefore, to understand the distribution and spread mechanisms has become important in the management and control of Chinese tallow in the southeastern United States. In this research, distribution and spread mechanisms of Chinese tallow were studied at multiple spatial scales, including regional, landscape, and stand. Effects of predisposing (community and landscape features) and inciting (natural disturbance and human activities) factors on Chinese tallow invasion had been evaluated by using a comprehensive data set (field data and Forest Inventory and Analysis data) and spatial statistical models. Results indicated that propagule pressure of Chinese tallow is the main force driving tallow dispersal at different spatial scales. Predisposing and inciting factors such as natural disturbances, anthropogenic disturbances, forest types, forestland ownerships, and landscape features are significantly related to the spread of Chinese tallow at different spatial scales. Regionally, Chinese tallow initially started to spread from southern Texas and Louisiana to the northeastern portion of the Gulf Coastal area. At landscape and stand scales, Chinese tallow has commonly invaded from edges of forests and habitats such as roads and firebreaks. Inciting factors, including hurricanes/storms and prescribed fires, could accelerate the spread of Chinese tallow at different spatial scales, especially in habitats that have previously been invaded. Compared to pine forests, it is easier for Chinese tallow to invade bottomland hardwood forests at the regional scale. The efficient dispersal distance of tallow seeds is 250-300 m, and its distribution is affected by the microtopography in forest stands. Management of Chinese tallow invasion should be focused at selected scales, such as landscape and stand levels, because of variations of site conditions.
159

SPEECH OUTCOMES FOLLOWING SURGICAL MANAGEMENT OF VELOPHARYNGEAL DYSFUNCTION: A SURVEY OF CRANEOFACIAL ANOMALIES TEAMS

LAUCK, LEISA C. 14 July 2005 (has links)
No description available.
160

The relationship between person-environment congruence and fundamental goals for African American and European American, female college students

Bath, Antonella 14 October 2003 (has links)
No description available.

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