Search results
(4,161 - 4,180 of 10,083)
Pages
- Title
- Investigation of special steels
- Creator
- Andrews, E. E., Winser, R. A.
- Date
- 2009, 1908
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/investigationofs00andr
Thesis (B.S.)--Armour Institute of Technology
- Title
- Investigations with recommendations of power and power costs in plant no. 2, Falls Creek Sand and Stone Co.
- Creator
- Ambrose, R. B.
- Date
- 2009, 1921
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/investigationswi00ambr
Thesis (B.S.)--Armour Institute of Technology
- Title
- Investigation of the relative stability of vertical back and battered back dam sections
- Creator
- Geisler, R.j, Clark, R.b.
- Date
- 2009, 1912
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/investigationofr00geis
Thesis (B.S.)--Armour Institute of Technology
- Title
- Investigation of time of combustion in a gas engine cylinder
- Creator
- Enander, E. H., Gaylor, W. S.
- Date
- 2009, 1906
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/investigationoft00enan
Thesis (B.S.)--Armour Institute of Technology
- Title
- An investigation of the various properties of sand as affecting its use in concrete and mortar
- Creator
- Altman, Eugene E
- Date
- 2009, 1916
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/investigationofv00altm
Thesis (B.S.)--Armour Institute of Technology;Bibliography: leaf 70
- Title
- An investigation of the tar by-product of the water gas industry
- Creator
- Harper, Robert B., Fash, Ralph H.
- Date
- 2009, 1905
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/investigationoft00harp
Thesis (B.S.)--Armour Institute of Technology
- Title
- THE DEVELOPMENT OF AN INSTRUMENT TO EVALUATE TEACHERS’ CONCEPTS ABOUT NATURE OF MATHEMATICAL KNOWLEDGE
- Creator
- Kean, Lesa L.
- Date
- 2012-12-10, 2012-12
- Description
-
While there does seem to be widespread consensus that teachers’ beliefs and concepts influence the way they teach, even the most recent...
Show moreWhile there does seem to be widespread consensus that teachers’ beliefs and concepts influence the way they teach, even the most recent international studies suggest that research-based evidence for this consensus is limited. In an effort to enlarge and enhance the pool of evidence that shows specific relationships between teacher beliefs and practice, the present author undertook to write an attitude survey and interview protocol that identifies and distinguishes teachers’ concepts on eight different aspects of NOMK. Such a survey seems to be a natural first step to providing evidence for the larger question of which beliefs correlate to what teacher behaviors. Eight NOMK aspects were identified and defined based on a review of over 68 resources including twelve that contained an existing assessment addressing NOMK concepts. While superficial inspection of the assessments referenced may suggest that the best solution may be to use an existing assessment or to compile a list of items from these various assessments and use that to assess NOMK, the researcher suggests four major issues that would suggest otherwise. The items of the assessment and the assessment as a whole were validated through several steps. First, the author started with over 40 survey items, distributed evenly over her eight aspects and including both Likert-type and open-ended items. Second, the items were randomized and distributed to practicing mathematics teachers for their feedback. Third, the items were revised and sent back out to teachers for additional feedback. Fourth, the resulting survey was piloted with over 20 community college teachers. Fifth, their responses were coded, and the open-ended items were coded by xii rubric and confirmed by a second coder. Sixth, the survey was revised once again and piloted to another sample of 20 with similar analysis. Finally, she conducted several forms of qualitative and quantitative analysis to cull down the items to those that produced the most valid and reliable survey items set possible. The resulting survey addresses six of the eight aspects proposed by the researcher and includes both Likert-type and open-ended items intended to be confirmed and clarified through interview. The researcher suggests further research be done in order to design items that validly and reliably identify teachers’ concepts of NOMK on the remaining two aspects.
PH.D in Mathematics Education, December 2012
Show less
- Title
- SIMULATION AND DEVELOPMENT OF A CLINICAL ANALYZER-BASED IMAGING SYSTEM
- Creator
- Majidi, Keivan
- Date
- 2013, 2013-12
- Description
-
The analyzer-based phase-sensitive X-ray imaging method (ABI) is emerging as a potential alternative to conventional radiography. ABI...
Show moreThe analyzer-based phase-sensitive X-ray imaging method (ABI) is emerging as a potential alternative to conventional radiography. ABI simultaneously generates a number of planar images containing information about scattering, refraction and absorption properties of the object. These parametric images are acquired by sampling the angular intensity profile (AIP) of an X-ray beam passing through the object at different positions of the analyzer crystal. Like many of the modern imaging techniques, ABI is a computed imaging method (meaning that the images are calculated from raw data). Therefore, the noise in ABI depends on the imaging conditions such as source flux, number of the analyzer positions, and the analyzer positions themselves as well as on the estimation method of the parameters. In the first part of this thesis, we use the Cramer-Rao lower bound to quantify the noise in ABI images and then investigate the effect of different analyzer-sampling strategies on this bound. The CRLB is the minimum bound for the variance of an unbiased estimator and defines the best noise performance that one can obtain regardless of which estimation method is used to estimate ABI parametric images. We will then use this bound to evaluate three ABI methods: Multiple-Image Radiography (MIR), Diffraction Enhanced Imaging (DEI) and Scatter Diffraction Enhanced Imaging (S-DEI). The proposed methodology can be used to evaluate any other ABI parametric image estimation technique. Synchrotron radiation has been the main source for experimental ABI and developing its methodologies, therefore the ABI application to clinical imaging has been very limited. It is inevitable to use conventional X-ray sources for ABI in order to utilize xii the technique in the clinical applications, however, due to the limited intensity of these sources and their finite source size, developing such systems is very challenging. In the second part of this thesis, we use computer simulations to understand the above challenges better. We measure the properties of this imaging system such as flux and point-spread function for various design parameters and discuss how to find an “optimal” setup based on these properties. The optimality of an imaging setup depends on the specific application that one wants to perform using the system; however, the results and discussions in this section layouts a design procedure for clinical ABI systems. In the last part of this thesis we review the steps we took in the Advanced X-ray Imaging Laboratory (AXIL) toward developing a clinical ABI system.
PH.D in Electrical Engineering, December 2013
Show less
- Title
- ENACTMENT OF COMMON CORE STATE STANDARDS FOR MATHEMATICS: RELATIONSHIP BETWEEN TEACHERS’ CHOICES OF CURRICULUM, TEACHING, AND PROFESSIONAL DEVELOPMENT
- Creator
- Kartal, Ozgul
- Date
- 2015, 2015-07
- Description
-
In response to perceived problems of the United States mathematics curriculum, the Common Core State Standards (CCSS) were developed under the...
Show moreIn response to perceived problems of the United States mathematics curriculum, the Common Core State Standards (CCSS) were developed under the leadership of the National Governor Association (NGA) and the Council of Chief State School Officers (CCSSO), and were released in 2010. As of the time of this study, forty-four states, the District of Columbia, four territories, and the Department of Defense Education Activity have adopted the CCSS. The CCSS for Mathematics (CCSSM) initiative has raised many research questions for the field concerning the quality, enactment, and effectiveness and impact of the standards. There is a great deal of concern, in particular, about the enactment of the standards, becauseas pointed out by Heck, Weiss, and Pasley (2011)if standards have not been well implemented in a particular setting, then failure or ineffectiveness shouldn’t be blamed on the standards. Various researchers identified the key components of a successful enactment of a set of standards as curriculum, assessment, professional development, and teachers and teaching practice (e.g., Confrey & Krupa, 2010; Goertz, 2010; Weiss et al., 2002; Wu, 2011b). Therefore, this research study focused on the enactment of the CCSSM, and analyzed the curriculum, teaching, assessment, and teacher professional development as the key components of the enactment process. This study focused on the state of Illinois which is one of the states that started fully implementing the new academic standards in the 2013-14 school year, and hence had ample preparation and trial time between the adoption and full implementation years. This study investigated the alignment between teachers’ choices of curriculum and CCSSM, and relation between the curriculum resources, professional development, and enactment of CCSSM. The focus of the study was on the content of basic algebra and concepts of solving equations and slope while investigating the alignment of enactment of the CCSSM. The sample was comprised of twelve 9th grade algebra teachers from six different schools in the state of Illinois. The criteria in selecting the schools were the geographic location of the schools, the types of the schools, the curricula used at the schools, and the professional development on CCSSM offered at the schools. Results of this study found that the curricula have limited alignment with CCSSM, and that teachers’ enactment of mathematical practices was affected by the availability of variety of standards for mathematical practices in their curriculum as well as professional development opportunities. The curricula provided opportunities for various mathematical practice standards throughout the content of basic algebra, but some practice standards were left out. Teachers provided opportunities for a subset of the standards that were present in the instructional segments of their curriculum. If not, they provided opportunities for practice standards as a result of acquisition from professional developments. The impact of professional development was most evident when teachers using the same curriculum differed in their enactment of the practices. This study portrayed the relations between (low/high) enactments of CCSSM, curriculum resources (aligned or not aligned), and professional developments. Many states and districts are just beginning to incorporate CCSSM into their math curriculum at the time of this study. Therefore, the findings of this study will guide them as they make their textbook, curriculum, and professional development choices and decisions. In addition, this research generated valuable knowledge that would be useful not only in improving the enactment of the CCSSM, but also improving the enactment of future sets of standards. There are implications for curriculum designers, administrators/school and district leaders, professional development designers, and teacher educators.
Ph.D. in Mathematics Education, July 2015
Show less
- Title
- ASSESSING THE CONSTRUCT VALIDITY OF THE ERROR CHOICE TEST: A NEW MEASURE OF MENTAL ILLNESS STIGMA
- Creator
- Michaels, Patrick
- Date
- 2011-11-16, 2011-12
- Description
-
The stigma of mental illness has been well documented in the United States and remains a worldwide concern. A common methodological necessity...
Show moreThe stigma of mental illness has been well documented in the United States and remains a worldwide concern. A common methodological necessity is to accurately assess attitudes and behaviors without the adverse impact of social desirability. An inexpensive method is to develop and administer an error choice (EC) test to measure opinions. An EC test is presented as a knowledge test, but actually measures prejudice. The current study evaluated the construct validity and reliability of a new EC test on mental illness stigma by administering questionnaires to assess cognitive, affective, behavioral, and knowledge domains in a community sample (N = 203). Results indicated that EC test total score was not related to demographic characteristics, but was related to cognitive, behavioral, and affective domains. The EC test only accounted for a significant amount of unique variance when predicting appropriate personal goals for people with mental illness, R2 change = .054, F(1, 200) = 14.96, p < .001. Both the Attribution Questionnaire and EC test were significant predictors of the personal goals total score, β = .433, p < .001, β = .235, p < .001, respectively. In terms of implications, further evaluation of the EC test would be beneficial given that it is inexpensive, easy to administer, and averts social desirability while discretely measuring prejudice. The use of an EC test could prove to be a useful adjunct to the use of direct attitudinal assessment tools in mental illness stigma studies.
M.S. in Psychology, December 2011
Show less
- Title
- THE IMPACT OF EXPLICIT AND IMPLICIT ATTITUDES COMPRISING MENTAL ILLNESS STIGMA ON TAKING PSYCHOTROPIC MEDICATIONS AS PRESCRIBED
- Creator
- Michaels, Patrick
- Date
- 2015, 2015-07
- Description
-
Research suggests mental illness stigma adversely impacts psychotropic medication use. Few studies have examined stigma and psychotropic...
Show moreResearch suggests mental illness stigma adversely impacts psychotropic medication use. Few studies have examined stigma and psychotropic medication use with a naturalistic design. This study assessed the independent impact of attitudes toward psychiatric medication, cognitive insight, explicit and implicit attitudes of public stigma and self-stigma on psychotropic medication use for people with serious mental illnesses. Medication use was examined in this one-month longitudinal study via self-reported medication use, desire to take medication as directed, pill count use rates over a onemonth period, and pharmacy records including maximum continuous gap, number of gaps, and medication possession ratios. The primary expectation that explicit and implicit attitudes would independently explain lower psychotropic medication use was mostly not supported. On average participants took 82% of psychotropic medication as prescribed, indicating medication was taken at a therapeutic level despite stigma. The most consistent association across time was a positive relationship among desire to take medication and self-application of negative stereotypes. The second finding was that attitudes toward psychotropic medication may be associated with self-reported use, maximum continuous gap, and medication possession. Implications for clinical practice recommend providers are aware, discuss, and intervene in consumer’s experiences with stigma, which can improve medication use and psychological stability. Future research should specifically enroll participants who concurrently take suboptimal doses of medication (<80% of medication) to study stigma and non-adherence. Research should seek to understand how internalized stigma and psychotropic medication stigma are related to suboptimal medication use behaviors among people with mental illness in longitudinal non-intervention studies.
Ph.D. in Psychology, July 2015
Show less
- Title
- ASSESSING THE VARIABILITY IN ETHNIC GROUP DIFFERENCES ON A POLICE OFFICER SELECTION TEST
- Creator
- Lee, Mirinae
- Date
- 2014, 2014-05
- Description
-
Aggregating data across several test administrations is a useful strategy for increasing the statistical power of adverse impact analysis....
Show moreAggregating data across several test administrations is a useful strategy for increasing the statistical power of adverse impact analysis. Typically, before such an analysis is conducted, a test of homogeneity is conducted to ensure that the degree of adverse impact is consistent across samples. An alternative approach would be to use hierarchical linear modeling to estimate the average and variability in adverse impact. The current study explored the patterns of variability of adverse impact in a police officer selection test across test administrations, departments, and geographic regions. Significant mean test score differences were found between African-American and White test takers. Further, the size of mean group differences varied significantly across test administration and departments, but not between geographic regions. The implications of these findings for scientists and practitioners alike are discussed.
M.S. in Psychology, May 2014
Show less
- Title
- AN EXPERIENCE SAMPLING STUDY OF COGNITIVE PREDICTORS OF SEASONAL DEPRESSIVE SYMPTOMS
- Creator
- Meyers, Katherine
- Date
- 2015, 2015-07
- Description
-
According to the Dual Vulnerability Model of Seasonal Depression, the combination of a physiological vulnerability toward vegetative symptoms...
Show moreAccording to the Dual Vulnerability Model of Seasonal Depression, the combination of a physiological vulnerability toward vegetative symptoms in the winter and a psychological vulnerability toward responding negatively to the vegetative symptoms results in seasonal depressive episodes. In particular, coping and response mechanisms such as rumination, acceptance, and distraction in reaction to vegetative symptoms may act as risk or protective factors in the development of seasonal depressive symptoms. By increasing our understanding of the relationship between coping strategies and the development of mood symptoms we can enhance our understanding of the psychological mechanisms of Seasonal Affective Disorder and inform psychological interventions. Using experience sampling methodology, which has been shown to reduce reliance on memory and increase ecological validity, we prospectively examined the effect of different coping mechanisms (rumination, acceptance, and distraction) in response to vegetative symptoms (hunger and fatigue) on subsequent mood. This is the first study to use experiencing sampling method to investigate how psychological symptoms develop in Seasonal Affective Disorder. Results suggest that rumination in response to hunger is a risk factor for mood deterioration. In contrast, acceptance of both fatigue and hunger appeared to protect against lower mood. The relationship between hunger and mood depended on distraction focused on reducing negative experiences (“negative distraction”), with higher levels of distraction strengthening that relationship. However, distraction focused on increasing positive experiences (“positive distraction”) did not appear to affect subsequent mood. We also examined the relationships between acceptance and other coping responses, with rumination and both forms of distraction showing a negative relationship with acceptance. The implications of these findings for understanding the development of Seasonal Affective Disorder, as well as future directions for research, are discussed.
Ph.D. in Psychology, July 2015
Show less
- Title
- Micro-structure of certain high-speed steels
- Creator
- Pulsifer, H. B.
- Date
- 2009, 1915
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/microstructureof00puls
Thesis (B.S.)--Armour Institute of Technology; Bibliography: leaves 3-6
- Title
- THE EFFECTS OF PARTNER-TYPE, AND SELF-EFFICACY ON SAFE SEX PRACTICES IN A SAMPLE OF HOMELESS WOMEN
- Creator
- Mikrut, Cassandra
- Date
- 2017, 2017-05
- Description
-
Homeless women tend to engage in a variety of behaviors that put them at risk for HIV and sexually transmitted infections (STIs). Some of...
Show moreHomeless women tend to engage in a variety of behaviors that put them at risk for HIV and sexually transmitted infections (STIs). Some of these behaviors include engaging in unprotected sex as well as higher levels of substance use. The purpose of the present study was to assess the effects of partner-type and condom use self-efficacy on sexual safety practices. Data were derived from 128 homeless women, living in shelters throughout New York City. Somers’ d was used to test the effects of partner-type, “steady” versus “casual,” and condom use self-efficacy on sexual safety practices. Results indicated that there were significant relationships between partner type and condom use as well as self-efficacy and condom use. Specifically, when the participant considered their primary partner to be “steady” they were less likely to use a male condom during sexual intercourse. Furthermore, higher condom use self-efficacy coincided with higher rates of condom use. Based on these results, it would be ideal for future research and interventions to focus on safe sex practices with “steady” partners, as these appear to be the riskier relationship.
M.S. in Psychology, May 2017
Show less
- Title
- Converter steel foundry practice
- Creator
- Mouat, Harry G.
- Date
- 2009, 1920
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/convertersteelfo00moua
Thesis (B.S.)--Armour Institute of Technology; Bibliography: leaf 78
- Title
- MINDFULNESS AND HEALTH BEHAVIORS: DOES AUTONOMOUS MOTIVATION MEDIATE ASSOCIATIONS BETWEEN MINDFULNESS AND HEALTH BEHAVIORS IN COLLEGE STUDENTS?
- Creator
- Coppersmith, Jody
- Date
- 2016, 2016-07
- Description
-
College is a critical period for the development of life-long health behaviors, and college students are particularly vulnerable to engaging...
Show moreCollege is a critical period for the development of life-long health behaviors, and college students are particularly vulnerable to engaging in high risk health behaviors, including physical inactivity and poor nutritional habits, that are risk factors for the development of chronic diseases. Current interventions aimed at promoting positive health behaviors in this population have shown limited efficacy. However, prior research suggests that both mindfulness and autonomous motivation are important theoretical constructs in health promotion and disease prevention research and intervention. To date, limited research has been conducted to understand the relationship amongst mindfulness, autonomous motivation, and health behaviors. This study examined the relationship between mindfulness, autonomous motivation, and health behaviors in college students. Based on self-determination theory, it was hypothesized that autonomous motivation would mediate the relationship between mindfulness and health behaviors, specifically physical activity and fruit and vegetable intake. Participants were 187 college students who completed a series of online questionnaires including demographic information, mindfulness, autonomous motivation for physical activity and to eat fruits and vegetables, physical activity, and fruit and vegetable intake. Results indicated that autonomous motivation to eat fruits and vegetables mediated the association between mindfulness and fruit and vegetable intake. Similarly, autonomous motivation for physical activity mediated the association between mindfulness and physical activity. These findings support autonomous motivation as a mechanism through which mindfulness impacts health behaviors. Thus, mindfulness should be incorporated into the self-determination theory of health-behavior change and represents a promising avenue for health behavior intervention in college students.
Ph.D. in Psychology, July 2016
Show less
- Title
- DEVELOPMENT OF AN INTERCULTURAL SENSITIVITY MEASURE
- Creator
- Crouch, Sara J.
- Date
- 2017, 2017-05
- Description
-
This study developed a measure of intercultural sensitivity based on the developmental model of intercultural sensitivity (Bennett, 1986; 1993...
Show moreThis study developed a measure of intercultural sensitivity based on the developmental model of intercultural sensitivity (Bennett, 1986; 1993) to be used in a public safety selection context. Experts reviewed the measure that was administered to a large, diverse police officer academy applicant sample and analyses were conducted on the results of the expert review and test administration. Results indicated that after measure refinement, the final 48 item measure closely approximated the underlying theoretical model. In terms of test construction, the measure produced reliable factor scores and reflected individual differences in intercultural sensitivity. We found evidence of racial/ethnic group differences for two of the five factors and also established construct validity for the measure. Practical implications pertaining to the usage of intercultural sensitivity measures in personnel selection and training were discussed.
M.S. in Psychology, May 2017
Show less
- Title
- Comparative tests of integrating wattmeters
- Creator
- Schaedlich, Hans, Cutler, E. W.
- Date
- 2009, 1906
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/comparativetests00scha
Thesis (B.S.)--Armour Institute of Technology
- Title
- Complete tests of the Willis straightline watthour meter and the Columbia shunted astatic watthour meter
- Creator
- Goldberg, I, Sackheim, S
- Date
- 2009, 1911
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/completetestsofw00gold
Thesis (B.S.)--Armour Institute of Technology, 1911 Bibliography: leaf 73 B.S. in...
Show morehttp://www.archive.org/details/completetestsofw00gold
Thesis (B.S.)--Armour Institute of Technology, 1911 Bibliography: leaf 73 B.S. in Electrical Engineering, 1911
Show less