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Articles 149401 - 149430 of 160213
Full-Text Articles in Entire DC Network
Bystander Action Or Inaction During Bullying : An Investigation Into The Role Of Gender, Empathy, Attitudes Toward Aggression, And Social Support, Trevor Bixler
Graduate Research Theses & Dissertations
This thesis is constructed to delineate mechanisms that influence bystander behavior in the presence of bullying phenomena. Purpose for this study is derived from the shallow empirical history of differentiation between passive outsiders and intervening defenders, particularly when concerned with student populations within the United States. This study included child participants in grades four and five from the Midwestern region. These participants were administered a series of survey measures, in addition being read aloud a vignette depicting bullying. Role orientation, defender or outsider, were examined as an outcome to be related with the social-cognitive predictor variables of empathy, attitudes toward …
Carbon Assimilation Of Oak Seedlings In Response To Canopy Thinning Treatments At The Morton Arboretum In Lisle, Illinois, Usa, Mary Rebecca Moses
Carbon Assimilation Of Oak Seedlings In Response To Canopy Thinning Treatments At The Morton Arboretum In Lisle, Illinois, Usa, Mary Rebecca Moses
Graduate Research Theses & Dissertations
White and bur oak savanna was once the dominant vegetation type in the Midwestern United States prior to European settlement. Within the oak savanna biome were pockets of oak-hickory closed forested sites, usually occurring in mesic areas and on the east side of rivers. Restoration efforts to restore the land back to savanna and closed canopy oak dominated forests are met with varying success. There is a need for understanding canopy openness requirements, and ideal forest floor light levels for successful oak regeneration. The purpose of this study is to determine success of oak seedlings growing under varying canopy treatments. …
Developing Geospatial Thinking And The Science Practices Of Investigation And Evalutation With Geographic Information Systems, Kelli Hamilton
Developing Geospatial Thinking And The Science Practices Of Investigation And Evalutation With Geographic Information Systems, Kelli Hamilton
Graduate Research Theses & Dissertations
Geospatial thinking is a subset of spatial thinking, which has been identified by the National Geography Standards as an essential skill for students to gain through geography instruction (Heffron & Downs, 2013). One tool which has been shown to help students develop their geospatial thinking skills is Geographic Information Systems (GIS) (Kim & Bednraz, 2013; Lee & Bednarz, 2009; Patterson, 2007). Much of the research conducted with GIS has been in the context of social studies classrooms. This study examined the use of GIS with seventh grade students in a science classroom. Results of this study indicate that students who …
Developing Solar Panel Simulators Using Labview For Constant Load For Varying Solar Irradiance And Temperature, Preethi Suryaa Sri Balu
Developing Solar Panel Simulators Using Labview For Constant Load For Varying Solar Irradiance And Temperature, Preethi Suryaa Sri Balu
Graduate Research Theses & Dissertations
Solar energy is a highly renewable energy source, causing no pollution to the external environment. In the recent years, the development and implementation of solar panels is increasing rapidly in both commercial and rural areas. Further research is being done for developing efficient solar panels. Considering the current development of solar panels, it is pivotal for the next generation of engineers to focus on research and development of solar panels. The objective of this thesis is to develop a solar panel simulator using LabVIEW software. LabVIEW software is used for its graphical programming, which makes understanding the working of solar …
Choosing Sustainability : The Relationship Between Personal Standards And Environment Responsive Behavior, Bridget Denise Stuckey
Choosing Sustainability : The Relationship Between Personal Standards And Environment Responsive Behavior, Bridget Denise Stuckey
Graduate Research Theses & Dissertations
This study investigated Personal Standards as a psychological determinant of Environment Responsive Behavior. This was a quantitative study that used questionnaire data collected from community college students in Northern Illinois. This study was guided by three research questions: What is the relationship between Personal Standards regarding the environment and Environment Responsive Behavior? What is the relationship between utility value, personal affect, and outcome expectancy regarding the environment and Environment Responsive Behavior? Are Environment Responsive Behavior and Personal Standards regarding the environment related to gender, childhood locale, field of study, number of semesters completed in college, age, and ethnicity? The data …
Citizenship Development Of Chinese Immigrant Youth In The United States, He Qin
Citizenship Development Of Chinese Immigrant Youth In The United States, He Qin
Graduate Research Theses & Dissertations
There has been a rapid increase of the Chinese immigrant youths enrolling in U.S. higher educational institutions. The question of how college-level Chinese immigrant youths develop their citizenship is critical to American educators in order to provide better civic preparation. The present mixed-method study investigated Chinese immigrant youths' citizenship development in areas of identity, attitudes, engagement, and knowledge. The participants were over 100 college-level Chinese youths who were born abroad or whose parents were born abroad. In Phase I of the study, a Modified Nominal Group Technique (MNGT) explored the characteristics of different developmental areas of citizenship among the participants. …
Clerics In Arms : Militant Catholicism And Religious Violence In France, 1584-1598, Gregory D. Bereiter
Clerics In Arms : Militant Catholicism And Religious Violence In France, 1584-1598, Gregory D. Bereiter
Graduate Research Theses & Dissertations
This dissertation examines the participation of Catholic clergy in religious violence and sectarian conflict at the height of the French Wars of Religion, a series of protracted armed conflicts that ravaged the kingdom of France between 1562 and 1629. It aims to produce a cultural history of clerical militancy at the height of these disastrous wars, when a "Holy League" of extremist Catholics formed across France with the twin goals of eradicating French Protestantism and preventing the crown from passing to a Protestant "heretic," Henri de Navarre. The dissertation investigates the violent practices of militant Catholic clergy in the 1580s …
Collaboration And Critical Thinking In An Online Chemistry Environment, Elizabeth Irene Kershisnik
Collaboration And Critical Thinking In An Online Chemistry Environment, Elizabeth Irene Kershisnik
Graduate Research Theses & Dissertations
The purpose of this dissertation was to examine collaboration and student's critical thinking and cognitive achievement within online chemistry courses. This quantitative study focused on the apparent lack of research relating collaboration and critical thinking in online science courses. Collaboration was determined using the small group collaboration model coding scheme, which examined student postings in asynchronous discussion forums for quantity, equality, and shareness. Critical thinking was measured using the chemistry concept reasoning test, the online self-diagnostic test, and also asynchronous student homework discussion postings that were coded using the community of inquiry cognitive presence indicators. Finally cognitive achievement was determined …
Computational Analysis Of Igbt Package Using Graphene Composites As Thermal Interface Materials, Rajasekhar Reddy Syamala
Computational Analysis Of Igbt Package Using Graphene Composites As Thermal Interface Materials, Rajasekhar Reddy Syamala
Graduate Research Theses & Dissertations
Heat dissipation is one of the most critical issues in electronics due to increasing power densities. This problem is getting even worse for small and sophisticated devices. Thermal Interface Materials (TIM) placed in between heat source and heat sink plays a major role in cooling devices. The ability to work at large temperature cycling results in reduction of thermos-mechanical reliability for the traditional TIMs. A high thermal performance, cost effective and reliable TIM would be needed to dissipate the generated heat, which could enable significant reductions in weight, volume and cost of the thermal management system. The objective of this …
Computational Analysis Of Solar Pond For Energy Storage And Desalination, Vyas Raghavan
Computational Analysis Of Solar Pond For Energy Storage And Desalination, Vyas Raghavan
Graduate Research Theses & Dissertations
Desalination of sea water with a help of solar pond is one of the most promising and developing technology. Salinity gradient solar ponds are essentially low cost solar energy collectors with integrated energy storage system, and hence are potential, cheaper alternatives to flat plate collectors system in certain locations. Solar ponds combine solar energy collection with long-term storage and can provide reliable thermal energy. The salt water has natural tendency to form a salt gradient in a water body with higher density salt water at the bottom and low density water at the top. In a solar pond the solar …
Condition-Based Monitoring For Machinery Vibration Using Analytics, Lakhan Raj Patlolla
Condition-Based Monitoring For Machinery Vibration Using Analytics, Lakhan Raj Patlolla
Graduate Research Theses & Dissertations
Machinery plays a key role for manufacturing and production companies. Most of the machines of a production company are subject to vibration signatures of one form or another. Vibration Signatures are quite often used to diagnose the health of the machines, i.e., detect problems in the machines before catastrophic failure takes place. In this thesis, first vibration data is generated using a machinery fault simulator (MFS). The piezoelectric transducers are mounted at various locations on the vibration fault simulating system to collect the data. The primary goal of this thesis deals with the data analytics to identify the source of …
Conditions Affecting Biomass Productivity, Lipid Production, And Harvesting Of The Microalga Monoraphidium Sp. Dek19 Grown In Wastewater, Adam Ralph Hage
Conditions Affecting Biomass Productivity, Lipid Production, And Harvesting Of The Microalga Monoraphidium Sp. Dek19 Grown In Wastewater, Adam Ralph Hage
Graduate Research Theses & Dissertations
The objective of this thesis was to investigate the culture conditions necessary to promote high cell densities, lipid productivities, and harvesting yields from the locally endemic microalgae Monoraphidium sp. Dek19 in a wastewater environment. The alga was inoculated in final effluent acquired from a local wastewater treatment facility in DeKalb, Illinois. The alga was cultivated in 1L Erlenmeyer flasks at 10°C, 70 μmol m⁻² s⁻¹ light, 14:10 light:dark cycle. Culture agitation was found to be an important condition for algal growth and nutrient removal. Increased culture turbulence through aeration correlated with improved phycoremediation and biomass production. Cultures in stagnant conditions …
Connecting Philosophy And Practice In The Fabric Of Public Education : An Analysis Of K-12 Instructional Technology Discourse Inspired By Foucault's Technologies Of The Self, Alan Clemens
Graduate Research Theses & Dissertations
This study was undertaken to better understand the discourse surrounding K-12 instructional technologies as represented in published articles of three trade publications whose target audience is educational practitioners. The study additionally sought to test the viability of an analytical framework inspired by Michel Foucault's technologies of the self. Two hundred and thirty-seven articles published in three trade periodicals (Education Week, Learning & Leading with Technology, and The School Administrator) over a two-year sample period were analyzed using NVIVO, a qualitative data analysis software product from QSR, International.
Constrained And Coxeter Table Algebras, Andrew P. Wang
Constrained And Coxeter Table Algebras, Andrew P. Wang
Graduate Research Theses & Dissertations
Table algebras are algebraic structures which generalize distinct but related configurations such as the adjacency algebra of an association scheme, a group algebra (and its center), and the algebra formed by the characters of that group. In this dissertation, we study table algebras generated by involutions, which are associated with Coxeter (association) schemes, an alternate representation of regular Tits buildings. Coxeter table algebras, like Coxeter schemes, are defined by two characteristics, constrainedness and the exchange condition. The exchange condition for table algebras and schemes generalizes the exchange condition for Coxeter groups. Our first principal result shows that, for certain cases, …
Constraining Neutrinos As Background To Wimp-Nucleon Dark Matter Particle Searches For Damic : Ccd Physics Analysis And Electronics Development, Melissa Jean Butner
Constraining Neutrinos As Background To Wimp-Nucleon Dark Matter Particle Searches For Damic : Ccd Physics Analysis And Electronics Development, Melissa Jean Butner
Graduate Research Theses & Dissertations
The DaMIC (Dark Matter in CCDs) experiment searches for dark matter particles using charge coupled devices (CCDs) operated at a low detection threshold of ~40 eV electron equivalent energy (eVee). A multiplexor board is tested for DAMIC100+ which has the ability to control up to 16 CCDs at one time allowing for the selection of a single CCD for readout while leaving all others static and maintaining sub-electron noise. A dark matter limit is produced using the results of physics data taken with the DAMIC experiment. Next, the contribution from neutrino-nucleus coherent scattering is investigated using data from the Coherent …
Construction Of Porous Silicon Schottky Diode Structure, Anjani Challa
Construction Of Porous Silicon Schottky Diode Structure, Anjani Challa
Graduate Research Theses & Dissertations
The thesis work mainly focuses on the Design, Fabrication & characterization and testing of the device using porous silicon. The two wafers used for this work are the silicon wafer coated with silicon nitride on the both sides. To prepare a mask, a design is drawn using AutoCAD software. The photoresist is coated on the front side of the wafer using spin coating technique and the silicon nitride which is coated on the back side of the wafer is removed by Dry chemical etching process. Windows are opened on the front side of the wafer using positive photoresist technique. Silicon …
An Analysis Of The Transfer Of Life Skills Through Sport, Jennifer M. Jacobs
An Analysis Of The Transfer Of Life Skills Through Sport, Jennifer M. Jacobs
Graduate Research Theses & Dissertations
PAPER 1: TRANSFER OF LIFE SKILLS IN SPORT-BASED YOUTH DEVELOPMENT PROGRAMS: A CONCEPTUAL FRAMEWORK BRIDGING LEARNING TO APPLICATION. Research has demonstrated that quality sport-based youth development programs promote life skill acquisition (e.g., leadership, self-control, social awareness) with the ultimate goal of facilitating lasting effects into the youth's social and academic environments. Researchers call this process "transfer of life skills" or the idea that physical, behavioral, and cognitive skills youth learn in the sport setting can be applied in non-sport settings to promote healthy development. The research surrounding this topic has been mixed, as many studies of quality sport programs have …
An Examination Of The Athletic Identity, Identity Foreclosure, And Career Maturity Of Division I Collegiate Student-Athletes In Nonrevenue-Producing Sports, Stacia A. Klasen
An Examination Of The Athletic Identity, Identity Foreclosure, And Career Maturity Of Division I Collegiate Student-Athletes In Nonrevenue-Producing Sports, Stacia A. Klasen
Graduate Research Theses & Dissertations
Very few student-athletes will go on to become a professional in their sport; therefore, the vast majority will need to pursue a non-sport career once their collegiate athletic eligibility has ended. Research indicates that a strong athletic identity and identity foreclosure coincide with lower levels of career maturity, which contributes to the struggle that student-athletes often face with their post-sport transition. The majority of student-athletes compete in nonrevenue-producing collegiate sports (e.g., cross country and soccer), but this subgroup has not been adequately examined. This is problematic because research suggests that lower career maturity levels exist among student-athletes in both revenue- …
An Examination Of The Reactivity Of Co2 With Mg-Silicates At Pressures And Temperatures Of The Earth's Mantle And Implications For Deep Carbon Storage, Emily S. Devers
An Examination Of The Reactivity Of Co2 With Mg-Silicates At Pressures And Temperatures Of The Earth's Mantle And Implications For Deep Carbon Storage, Emily S. Devers
Graduate Research Theses & Dissertations
The deep carbon cycle can be better constrained by understanding the reactivity of CO2 with common mantle minerals. Surface reservoirs exchange carbon to the mantle via subduction zones, which carry carbonate minerals into the mantle. It is commonly accepted that there is a carbon deficiency with regards to degassing and the mantle may be the largest potential reservoir for terrestrial carbon. Carbon is released from decarbonation reactions as a volatile (i.e. CO2) and may react with common mantle minerals including forsterite (end member Mg-olivine) to produce a carbonate mineral, magnesite, which has been shown to have exceptional stability under high …
An Exploration Of Counselor Educators' And Supervisors' Views Of The Development Of Multicultural Competency In Master's-Level Students During Practicum, Chunnan Hu
Graduate Research Theses & Dissertations
Counselors must improve multicultural counseling competency to meet clients' needs in this pluralistic society. This study used grounded theory methodology to describe counselor educators' and supervisors' experiences and perspectives of master's-level practicum students' multicultural competency development. Nine counselor supervisors from eight counseling programs participated in this study. Findings indicate that students' openness to and humility regarding cultural differences, direct exposure to diversity, having faculty who value multicultural competency and are culturally competent, and having effective multicultural training and supervision are key contributing factors in students' multicultural competency development. This study shares counselor educator and supervisors' current practices in promoting and …
The Effect Of Strain Rates On The Formability Of Commercial Pure Titanium Foils, Kechuang Zhang
The Effect Of Strain Rates On The Formability Of Commercial Pure Titanium Foils, Kechuang Zhang
Graduate Research Theses & Dissertations
Due to its hexagonal close-packed (HCP) crystal structures and limited slipping systems, commercial pure titanium shows low ductility. However, high-velocity deformation can be quite effective in increasing forming limits. In this present study, the formability of CP grade 2 titanium foils (38[micro]m) at various forming speeds were studied by experimental approach. A series of microlimited dome height ([micro]LDH) tests were conducted to examine the stamping formability of CP grade 2 titanium foils at different test speeds (0.01mm/s, 12m/s, 17m/s) on both MTS and split Hopkinson bar. Two different punch sizes (2mm, 20mm) were also used in [micro]LDH tests at quasi-static …
The Effects Of Different Multimedia Learning Environments On The Learning Outcomes Of Second Language Learners : An Assessment Of Mayer's Redundancy Principle, Araya Ramsin
Graduate Research Theses & Dissertations
This quasi-experimental quantitative study examined the effects of different multimedia learning environments on the learning outcomes of second language learners. The study was designed to specifically assess Mayer's redundancy principle by investigating whether there was a difference in performance outcomes of second language learners participating in two different multimedia learning environments: 1) images with audio only and 2) images with audio and on-screen text. A repeated-measures analysis of covariance (ANCOVA) was conducted to evaluate change in comprehension performance from pretest to posttest, mean differences in comprehension performance between the two groups, and group differences in comprehension growth from pretest to …
The Food Pyramid : Mexicans, Agribusiness, Governments And Communities In The Midwest Migrant Stream, Katie Sutrina-Haney
The Food Pyramid : Mexicans, Agribusiness, Governments And Communities In The Midwest Migrant Stream, Katie Sutrina-Haney
Graduate Research Theses & Dissertations
As recent scholarship and even popular works and documentaries demonstrate, the United States public is largely unaware how our food ends up on our table. While some popular works found in bookstores explore where our food comes from, these works rarely analyze the role of labor and specifically the system of the migrant farmworker stream. Workers in the field make possible the complex process from the growth of produce to the selling of food to consumers. By the 1960s, communities and states in the Midwest reacted to editorialized and documented condemnation of the living and working conditions of migrant farmworkers …
The Gendered Superhero : An Examination Of Masculinities And Femininities In Modern Age Dc And Marvel Comic Books, Jennifer Volintine
The Gendered Superhero : An Examination Of Masculinities And Femininities In Modern Age Dc And Marvel Comic Books, Jennifer Volintine
Graduate Research Theses & Dissertations
This thesis examines American gender concepts of masculinity and femininity depicted in six Modern Age superhero comic books. Specifically, it examines how the American gender concepts of hegemonic masculinity, hypersexualized masculinity, emphasized femininity, and hypersexualized femininity are depicted in three Marvel and three DC comic books. This examination found that despite gender differences defined by biological essentialism that legitimates gender inequality, female and male superheroes are much more alike than different through what I term "visionary gender". Also, it examines indicators of gender not previously examined in American superhero comic books. In particular, it examines the text of superhero comic …
The Almost-Invariant Halfspace Problem, Ben Wallis
The Almost-Invariant Halfspace Problem, Ben Wallis
Graduate Research Theses & Dissertations
Let X be a complex, infinite-dimensional Banach space and T : X → X a continuous linear operator. A closed subspace Y of X such that Y and X/Y both have infinite dimension is called a halfspace. We say that Y is almost-invariant under T if there is a finite-rank linear operator F : X → X such that (T + F)Y ⊆ Y; in this case, the minimum possible rank of F is called the defect. If (T +K)Y ⊆ Y for some compact linear operator K : X → X then we say that Y is essentially-invariant under …
The Associations Among Relational Victimization, Social Support, Depression, And Academic Achievement In Early Adolescence, Sonia Nowakowska Cooper
The Associations Among Relational Victimization, Social Support, Depression, And Academic Achievement In Early Adolescence, Sonia Nowakowska Cooper
Graduate Research Theses & Dissertations
The current study examined the associations among peer victimization, psychological distress, social support, and academic achievement outcomes in a middle school sample. Specifically, the current study investigated how social support and depression influence the association between relational aggression and academic achievement. These findings aimed to address a significant gap in our understanding of how peer victimization interferes with students' academic achievement. Analyses were conducted utilizing a total sample of 471 middle school students that were part of an all-school evaluation that occurred in May, 2014. Results indicated that depression and social support mediated the association between relational victimization and academic …
The Effect Of #Blacklivesmatter : The Relevance Of Communities And Collective Identity, Stephanie D. Jones
The Effect Of #Blacklivesmatter : The Relevance Of Communities And Collective Identity, Stephanie D. Jones
Graduate Research Theses & Dissertations
In this paper I analyze the impact that the social movement #BlackLivesMatter (#BLM) has on how communities frame the issue of police brutality within protests. Protests that occurred before the #BLM movement focused on policing issues only within their own communities, while the protests that occurred after #BLM make connections from local cases to a national problem. I examine YouTube videos of protesting the police after incidents of police brutality for three different cases. The first case is the murder of Oscar Grant in Oakland, California, which was before the #BLM movement emerged. The second case was the choking of …
Investigating The Determinants Of Mobile Learning Acceptance In Higher Education In Saudi Arabia, Hamed Al-Shahrani
Investigating The Determinants Of Mobile Learning Acceptance In Higher Education In Saudi Arabia, Hamed Al-Shahrani
Graduate Research Theses & Dissertations
Higher education appears to be changing in Saudi Arabia, which has made considerable progress in the adoption of more student-centered learning approaches as a reaction to the global pedagogical shift. Saudi Arabia has prioritized instructional technology integration in its educational system. The proliferation and popularity of mobile handheld devices, particularly among young students, will significantly make the future of Mobile learning, or M-learning in higher education bright and promising. However, M-learning in higher education is still in its embryonic stage of implementation, especially in developing countries such as Saudi Arabia; therefore, an in-depth study of each aspect of this issue …
Investigation Of Pretreating Methods To Activate Carbon Electrode For Alkaline Alcohol Fuel Cell, Deva Harsha Perugupalli
Investigation Of Pretreating Methods To Activate Carbon Electrode For Alkaline Alcohol Fuel Cell, Deva Harsha Perugupalli
Graduate Research Theses & Dissertations
Alcoholic fuel cells have been developed intensively over decades for portable applications, but the full application was limited due to the issues such as high system cost, low performance, and durability. The main focus of this research is to replace the expensive platinum catalyst with cheap carbon material to solve one of key challenging issues, the system cost. Alkaline system was utilized, while most of related research has been conducted in acidic condition, due to benefits of fast kinetics, low alcohol/water crossover rate, and low cost of anion exchange membrane which is order of magnitude cheaper than Nafion membrane in …
Is Legal Action The Right 'Idea' : An Examination Of Client-Based Legal Action And Its Effects On Organizational Responses To The Individuals With Disablities Education Act Of 2004 (Idea), Maureen A. Lowry-Fritz
Is Legal Action The Right 'Idea' : An Examination Of Client-Based Legal Action And Its Effects On Organizational Responses To The Individuals With Disablities Education Act Of 2004 (Idea), Maureen A. Lowry-Fritz
Graduate Research Theses & Dissertations
The Individuals With Disabilities Education Act of 2004 (IDEA) is a piece of federal legislation that directs schools and districts to provide students with disabilities a "free appropriate public education." It contains numerous legal tools that parents can use to compel schools to develop appropriate educational programming for their children. But does parent-initiated legal action actually cause schools and districts to change their behavior? And if so, does the change in behavior affect the educational outcomes of students with disabilities? This dissertation attempts to answer those questions and determine whether law influences organizational behavior and if it does, whether it …