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(1 - 12 of 12)
- Title
- Analysis of Drosophila Sox gene expression in the intestinal stem cell lineage.
- Creator
- Boucekkine, Houda, Nambu, John R.
- Date Issued
- 2012-04-06
- PURL
- http://purl.flvc.org/fcla/dt/3351386
- Subject Headings
- Drosophila, SOX, Intestinal stem cell, Digestive system, Stem cell biology
- Format
- Document (PDF)
- Title
- Influence of Subject Taught (STEM), Title I, and Grade Level of Instruction for Components in an Effective Professional Development Design.
- Creator
- Perez, Kristen, Kumar, David D., Florida Atlantic University, College of Education, Department of Curriculum, Culture, and Educational Inquiry
- Abstract/Description
-
Professional development has been deemed ineffective for several decades. This ineffectiveness could stem from the one-size-fits-all professional development designs, and the inconsistencies and contradictions pointed out in professional development research (which is used to create these designs). Investigating how subject taught (STEM and non-STEM), Title I status of the school (Title I and non-Title I), and grade level of instruction (elementary, middle and high) could influence teachers’...
Show moreProfessional development has been deemed ineffective for several decades. This ineffectiveness could stem from the one-size-fits-all professional development designs, and the inconsistencies and contradictions pointed out in professional development research (which is used to create these designs). Investigating how subject taught (STEM and non-STEM), Title I status of the school (Title I and non-Title I), and grade level of instruction (elementary, middle and high) could influence teachers’ preferences regarding components included in an effective design is a step toward resolving some of these inconsistencies. The research design was an embedded mixed method – an overall causal-comparative design embedded with interviews. Interviews determined teachers’ perceptions of an effective professional development design. The survey investigated preferences for nine components: content knowledge, pedagogical knowledge, active learning, duration, alignment with goals and policies, follow-up, collaboration, support, and resources (tangible and intangible). In the interviews, teachers communicated a need for differentiation based on grade level of instruction, Tittle I status of the school, and subject taught, with high percentages of agreement with the final questions of the survey. The ordinal logistic regression indicated that subject taught and Title I status of the school did not have a statistically significant effect on the dependent variable. Breaking up participants according to grade level of instruction (elementary versus secondary) had a statistically significant effect on teachers’ preferences regarding the components included in an effective professional development design. This indicated that professional development should be differentiated based on elementary and secondary instruction. When the researcher reviewed the components, some showed that the independent variables, Title I status of the school and grade level of instruction had a statistically significant effect. Although the ordinal logistic regression revealed a lack of statistical significance, percent differences indicated that factors such as subject taught, Title I status of the school, and grade level of instruction influenced teachers’ preferences regarding specific components in an effective professional development design. These findings illustrate promise that in a larger study, statistical significance might be present. Thus, professional development should be differentiated based on subject taught, Title I status of the school, and grade level of instruction.
Show less - Date Issued
- 2018
- PURL
- http://purl.flvc.org/fau/fd/FA00005953
- Subject Headings
- Professional development for teachers, STEM
- Format
- Document (PDF)
- Title
- The University Journey of STEM Transfer Students.
- Creator
- Rich, Nancy, Mountford, Meredith, Florida Atlantic University, College of Education, Department of Educational Leadership and Research Methodology
- Abstract/Description
-
The purpose of this qualitative study was to understand the feelings and experiences of state college transfer STEM students regarding transfer from the state college to the university. The 25 participants in this study were asked to describe their feelings about the transfer process. Data were gathered from the interviews and from a review of short journals and documents. It was hoped that the experiences of successful transfer students would help illustrate the feelings present when these...
Show moreThe purpose of this qualitative study was to understand the feelings and experiences of state college transfer STEM students regarding transfer from the state college to the university. The 25 participants in this study were asked to describe their feelings about the transfer process. Data were gathered from the interviews and from a review of short journals and documents. It was hoped that the experiences of successful transfer students would help illustrate the feelings present when these STEM transfer students enter the university as juniors and compete with native juniors or juniors who began their collegiate experiences as freshmen at the university. Each participant had varied experiences and feelings from the experience. There was no one process that each student traveled through. Findings included: financial influences on decision-making, inconsistencies in advising causing anxieties, hands on learning impacts persistence, negative connotations for transfer students, class size impacts difficulty, the importance of university transfer orientation, and areas in need of improvement. During participant interviews, the issue of finance and budgeting was the most prevalent topic. Participants found that their state college advisors did not always understand their intended career paths causing confusion and anxiety. They valued hands on experiences provided by state college professors who encouraged them to continue their education. The increased class size at the university was disconcerting to many study participants. At the state college professors had open-door policies for students with questions or in need of extra assistance with course materials. Participants felt that the classification of transfer student had some negative connotations at the university. Students were reluctant to be singled out as state college transfer students. In addition, transfer orientation was viewed by older participants as demeaning. Participants were asked about changes they would make in the transfer process. The link programs seemed to be under promoted. A database for immigration information was suggested. Participants also suggested changes to transfer student orientation. This study was limited to 25 successful transfer students. The results should not be generalized to a larger population, but instead provide ideas for future policy discussions and research.
Show less - Date Issued
- 2018
- PURL
- http://purl.flvc.org/fau/fd/FA00013110
- Subject Headings
- Transfer students, STEM, Qualitative research
- Format
- Document (PDF)
- Title
- Variable tensility of the ligaments in the stalk of sea-lily.
- Creator
- Wilkie, Iain C., Emson, Roland H., Young, Craig M., Harbor Branch Oceanographic Institute
- Date Issued
- 1994
- PURL
- http://purl.flvc.org/FCLA/DT/3331885
- Subject Headings
- Crinoidea, Tensile Strength, Stalks (Botany), Stems (Botany)
- Format
- Document (PDF)
- Title
- THE ROOT AND HUE OF SCIENCE: BLACK FEMALE STEM PROFESSIONALS IN PALM BEACH COUNTY.
- Creator
- Wildgoose-Carroll, J. Janell, Bryan, Valerie C., Florida Atlantic University, Department of Educational Leadership and Research Methodology, College of Education
- Abstract/Description
-
Research shows that the United States of America is losing its competitive stance in the area of STEM (Science, Technology, Engineering, and Math) relative to other countries. One strategy that could solve this problem would be to diversify the field of STEM to include more women of color. The purpose of this narrative, qualitative research study was to explore the lived experiences of Black women with advanced/terminal degrees who are current STEM professionals in Palm Beach County. Fourteen...
Show moreResearch shows that the United States of America is losing its competitive stance in the area of STEM (Science, Technology, Engineering, and Math) relative to other countries. One strategy that could solve this problem would be to diversify the field of STEM to include more women of color. The purpose of this narrative, qualitative research study was to explore the lived experiences of Black women with advanced/terminal degrees who are current STEM professionals in Palm Beach County. Fourteen Black women participated in this study, which yielded four major findings that included early exposure to education’s value. importance of a strong sense of self/self-identity, challenges, and discrimination. The hope is that these findings will provide local administrators and elected officials/decision-makers (e.g., the school district, higher education, and government agencies) with information that could advise future practices and policies to close the gap of under-represented Black women in STEM industries.
Show less - Date Issued
- 2021
- PURL
- http://purl.flvc.org/fau/fd/FA00013693
- Subject Headings
- STEM, Women, Black, Palm Beach County (Fla.)
- Format
- Document (PDF)
- Title
- MAKING A DIFFERENCE IN THE WORLD THROUGH SCIENCE, TECHNOLOGY, ENGINEERING, AND MATHEMATICS: A PHENOMENOLOGICAL STUDY OF THE LIVED EXPERIENCES OF GRADUATE STUDENTS ENGAGING IN STEMBASED ACADEMIC SERVICE-LEARNING.
- Creator
- Hackman, Aaron Kyle, Bloom, Jennifer, Florida Atlantic University, Department of Educational Leadership and Research Methodology, College of Education
- Abstract/Description
-
This phenomenological study sought to understand the lived experiences of graduate students engaged in STEM-related Academic Service-Learning (AS-L). For the purposes of this study, Academic Service-Learning is a form of experiential learning whereby students complete a service project as a component of a specific course. This study looked at these student AS-L project experiences at the graduate level as a component of STEM-based courses. While the impact of Academic Service-Learning on the...
Show moreThis phenomenological study sought to understand the lived experiences of graduate students engaged in STEM-related Academic Service-Learning (AS-L). For the purposes of this study, Academic Service-Learning is a form of experiential learning whereby students complete a service project as a component of a specific course. This study looked at these student AS-L project experiences at the graduate level as a component of STEM-based courses. While the impact of Academic Service-Learning on the undergraduate experience is well documented, there is no research to date on the graduate experience, much less on graduate students in STEM fields. By understanding the lived experiences of graduate students in STEM-based Academic Service-Learning, this study attempts to fill that gap. The research questions that guided my study were: (1) What types of project-based experiences are graduate students performing in their Academic-Service-Learning designated courses? (2) What are the lived experiences of graduate students who are conducting AS-L projects in the community as a component of a STEM-based AS-L course as perceived by students, faculty, and community partners. (3) What are the lived experiences of the community partners who are hosting the students for their AS-L projects.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014234
- Subject Headings
- Experiential learning, Graduate students, STEM, Service learning
- Format
- Document (PDF)
- Title
- Adult neural stem cell proliferation is not altered in trans-genic mice overexpressing BDNF or mutant HTT in forebrain.
- Creator
- Bahga, Dalbir, Guthrie, Kathleen M.
- Date Issued
- 2012-04-06
- PURL
- http://purl.flvc.org/fcla/dt/3348622
- Subject Headings
- Neural stem cells, Subventricular zone, Brain-derived neuro-trophic factor, Stem cell proliferation
- Format
- Document (PDF)
- Title
- A Quantitative Longitudinal Study Using Astin’s I-E-O Model to Predict College STEM Versus Non-STEM Major Choice Among Women.
- Creator
- Berchiolli, Patricia, Wright, Dianne A., Florida Atlantic University, College of Education, Department of Educational Leadership and Research Methodology
- Abstract/Description
-
This quantitative longitudinal study sought to highlight the difference between the proportion of men and women who planned to pursue a STEM major in the fields of mathematics, natural sciences, engineering, and computer and information sciences as freshmen, as well as to determine the proportion of men and women who changed their major choice by their senior year. In addition, the researcher sought to identify women students’ unique background characteristics and college experiences that...
Show moreThis quantitative longitudinal study sought to highlight the difference between the proportion of men and women who planned to pursue a STEM major in the fields of mathematics, natural sciences, engineering, and computer and information sciences as freshmen, as well as to determine the proportion of men and women who changed their major choice by their senior year. In addition, the researcher sought to identify women students’ unique background characteristics and college experiences that have taken place over the course of their undergraduate college career that may have predicted their declared major choice (STEM versus non-STEM) as seniors. A review of the literature, along with Astin’s Involvement Theory, encouraged the hypothesis that college experiences influence women’s college major choice: STEM versus non-STEM. Secondary data obtained from the Cooperative Institutional Research Program at the higher Education Research Institute was used. The sample was delimitated to include only full-time undergraduate students who were graduating in 2012 or 2013. Five research questions were addressed in this study. Astin’s (1993) Input-Environment-Outcome Model was used as a conceptual framework. Descriptive (frequencies and percentages) and inferential (chi-square test and discriminant analysis) statistics were used to analyze the data. The results found a statistically significant difference between the proportion of men and women who planned to pursue a STEM major as freshmen as well as the proportion of men and women who changed their major choice from STEM to non-STEM. Discriminant analysis was used to predict group membership of STEM versus non-STEM major choice among women. It was found that many variables had an impact on predicting STEM group membership among women: satisfaction with college math and science courses, high school GPA, SAT score, high self-ratings of problem-solving skills and mathematical ability, and participating in undergraduate research. There were also variables that had a greater ability of predicting non-STEM group membership. The findings from this study will hopefully inform policy and practice. Implications for policy, practice, and future research are included.
Show less - Date Issued
- 2019
- PURL
- http://purl.flvc.org/fau/fd/FA00013186
- Subject Headings
- College majors, Women in STEM, Longitudinal research, Quantitative research
- Format
- Document (PDF)
- Title
- FSTL-1 secreted by mesenchymal stem cells increases cell viability of human aortic endothelial cells under hypoxic stress.
- Creator
- Eid, Nibal., Harriet L. Wilkes Honors College
- Abstract/Description
-
Human mesenchymal stem cells (MSCs) are being evaluated for the treatment of a broad array of diseases due to their ability to secrete a variety of therapeutically beneficial paracrine-acting factors. For example, MSC conditioned media (MSC-CM) has been shown to inhibit hypoxia-induced apoptosis in human aortic endothelial cells (HAECs) via activation of the P13-AKT pathway. However, the factors secreted by MSCs responsible for this effect have yet to be identified. Recent studies have shown...
Show moreHuman mesenchymal stem cells (MSCs) are being evaluated for the treatment of a broad array of diseases due to their ability to secrete a variety of therapeutically beneficial paracrine-acting factors. For example, MSC conditioned media (MSC-CM) has been shown to inhibit hypoxia-induced apoptosis in human aortic endothelial cells (HAECs) via activation of the P13-AKT pathway. However, the factors secreted by MSCs responsible for this effect have yet to be identified. Recent studies have shown that the glycoprotein Follistatin-like 1 (FSTL1) activates the P13-AKT pathway by binding to the receptor disco-interacting protein (DIP2A) expressed on the surface of cells. Based on our data indicating that MSCs constitutively secrete high quantities of FSTL1, we hypothesize that this protein principally mediates the anti-apoptopic effect of MSC-CM on HAECs. Loss-of-function studies employing siRNA-mediated knockdown of the protein and neutralizing antibodies will be used to assess the role of FSTL1 in growth and survival of HAECs following exposure to hypoxic stress.
Show less - Date Issued
- 2012
- PURL
- http://purl.flvc.org/FAU/3359296
- Subject Headings
- Stem cells, Transplantation, Molecular biology, Gene therapy, Coronary heart disease, Prevention, Stress (Physiology)
- Format
- Document (PDF)
- Title
- Characterization of Group B Sox genes in the development of Drosophila nervous system.
- Creator
- Singh, Shweta, Dawson-Scully, Ken, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
- Abstract/Description
-
Sox proteins all contain a single ~70 amino acid High Mobility Group (HMG) DNA-binding domain with strong homology to that of Sry, the mammalian testisdetermining factor. In Drosophila melanogaster, there are four closely related members of the B group, Dichaete (D), Sox Neuro (Sox N), Sox 21a, and Sox 21b that each exhibit ~90% sequence identity within the HMG domain.The previous study has shown that Dichaete plays a major role in embryonic nervous system development and is expressed in...
Show moreSox proteins all contain a single ~70 amino acid High Mobility Group (HMG) DNA-binding domain with strong homology to that of Sry, the mammalian testisdetermining factor. In Drosophila melanogaster, there are four closely related members of the B group, Dichaete (D), Sox Neuro (Sox N), Sox 21a, and Sox 21b that each exhibit ~90% sequence identity within the HMG domain.The previous study has shown that Dichaete plays a major role in embryonic nervous system development and is expressed in several clusters of neurons in the brain, including intermingled olfactory LNs and central-complex neurons strongly expressed in local interneuron of the olfactory system. However, little is known about the possible expression and functions of the related group B Sox genes in the larval and adult brain. In particular, it is unclear if Sox N may function along with Dichaete in controlling the development or physiology of the adult olfactory system. Our data suggests Sox N potential role in the elaboration of the olfactory circuit formation.
Show less - Date Issued
- 2017
- PURL
- http://purl.flvc.org/fau/fd/FA00004907, http://purl.flvc.org/fau/fd/FA00004907
- Subject Headings
- Drosophila melanogaster--Physiology., Transcription factors., Gene expression., Genetic transcription., Cell cycle., Neural stem cells.
- Format
- Document (PDF)
- Title
- Identification of a truncated form of methionine sulfoxide reductase a expressed in mouse embryonic stem cells.
- Creator
- Jia, Pingping, Zhang, Chi, Jia, Yuanyuan, Webster, Keith A., Huang, Xupei, Kochegarov, Andrei A., Lemanski, Sharon L., Lemanski, Larry F.
- Date Issued
- 2011-06-22
- PURL
- http://purl.flvc.org/fcla/dt/3327268
- Subject Headings
- Cell nucleus -- metabolism, Cloning, Molecular, Cytosol --metabolism, Embryonic Stem Cells --metabolism, Methionine --metabolism, Methionine Sulfoxide Reductases, Methionine Sulfoxide Reductases --metabolism, Methionine Sulfoxide Reductases --genetics, Mitochondria --metabolism, Molecular Sequence Data, Oxidation --Reduction, Polymerase Chain Reaction, Reverse Transcriptase Polymerase Chain Reaction, Methionine
- Format
- Document (PDF)
- Title
- Rhetorical "Mosaicism" and Intractable Conflict: George W. Bush on Stem Cells.
- Creator
- Brooten, Gary, Marin, Noemi, Florida Atlantic University
- Abstract/Description
-
President Bush's 2001 speech on stem cell research showed unusual intermixing of rhetorical bits from past arguments of proponents and opponents, suggesting that such mixing is a distinct rhetorical strategy. Analyses revealed two communities that had engaged each other over reproductive biology issues for decades, developing distinct vocabularies and argumentative patterns in that interaction. The speech mixed fragments ofthese usages. Traditional textual analyses and analyses ofthe mixing...
Show morePresident Bush's 2001 speech on stem cell research showed unusual intermixing of rhetorical bits from past arguments of proponents and opponents, suggesting that such mixing is a distinct rhetorical strategy. Analyses revealed two communities that had engaged each other over reproductive biology issues for decades, developing distinct vocabularies and argumentative patterns in that interaction. The speech mixed fragments ofthese usages. Traditional textual analyses and analyses ofthe mixing itself showed that the mixing seems to reinforce traditional approaches to divided audiences by opening up many possibilities for the communities to draw different meanings from what is said. Analyses of responses to the speech showed such split understandings, and followup analyses to 2007 suggest that the speech helped freeze the character of the debate in the form Bush gave it. Mixing is a viable rhetorical strategy to help manage intractable issues with deeply divided audiences.
Show less - Date Issued
- 2007
- PURL
- http://purl.flvc.org/fau/fd/FA00000902
- Subject Headings
- Bush, George W.--(George Walker),--1946---Political and social views., Medical genetics--Research--Moral and ethical aspects., Stem cells--Research--Moral and ethical aspects., Rhetorical criticism., Mosaicism., Developmental genetics--Moral and ethical aspects.
- Format
- Document (PDF)
