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In Situ Mechanical Characterization Of The Mixed- Mode Fracture Strength Of The Cu/Si Interface For Tsv Structures, Chenglin Wu, Congjie Wei, Yanxiao Li

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In situ nanoindentation experiments have been widely adopted to characterize material behaviors of microelectronic devices. This work introduces the latest developments of nanoindentation experiments in the characterization of nonlinear material properties of 3D integrated microelectronic devices using the through-silicon via (TSV) technique. The elastic, plastic, and interfacial fracture behavior of the copper via and matrix via interface were characterized using small-scale specimens prepared with a focused ion beam (FIB) and nanoindentation experiments. A brittle interfacial fracture was found at the Cu/Si interface under mixed-mode loading with a phase angle ranging from 16.7° to 83.7°. The mixed-mode fracture strengths were extracted …

Smart Building And Construction Materials, Donglu Shi, Julian Wang, Wen Deng

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Advances and innovations in materials science and engineering have always played a substantial role in civil engineering, building structural design, and construction. In recent years, extensive effort has been devoted to the applications of stimuli-responsive smart materials and nanostructures in buildings. These smart materials used in the built environment can be defined as those offering specific functional and adaptable properties in response to thermal, optical, structural, and environmental stimuli. Not only do these materials enhance the overall performance of new building construction but also promise safer structures, longer durability of building elements, efficient building energy savings, greater environmental sustainability, and …

Increasing Student Perceptions Of Success And Inclusion Through Strategic Programming Of Underrepresented Composers, Joyce J. Beyer

Dissertations and Theses @ UNI

There is a disproportional representation of women and people of color in orchestra and classical music. Both on the stage and in the music being performed, white and male musicians are more prominent than women and people of color. This disproportionality impacts underrepresented people, especially young students.

A study was done to see if introducing students to successful women and people of color who were musicians would increase student perceptions of success and inclusion in orchestra. The study included 37 students from 5 public school orchestra programs. The treatment was a series of pre-designed mini-lessons on underrepresented musicians. Growth was …

Impact Of Social Support On Saudi Women With Type Ii Diabetes Living In Saudi Arabia, Fatimah Al-Khidhr

Dissertations and Theses @ UNI

The purpose of this study was to describe the impact of social support on Saudi women with Type II Diabetes. This study describes the different types of social support (emotional, instrumental/tangible, informational, and appraisal) offered to Saudi women who have Type II Diabetes living in Qatif City, Saudi Arabia. Lastly, this study aims to assess the types of social support that Saudi women receive from others (i.e. spouse, family members and friends, and peers) in order to improve the quality of life. A qualitative design, semi-structured interview technique was used. The data was collected by using a screening questionnaire and …

Introduction, Charles C. Jalloh

FIU Law Review

No abstract provided.

The Ilc’S Past Practice On Progressive Development And Codification Of International Law—An Empirical Analysis Focusing On The Law Of The Sea, Law Of Treaties And State Responsibility, Patrícia Galvão Teles

FIU Law Review

No abstract provided.

The International Law Commission Between Codification, Progressive Development, Or A Search For A New Role, Pavel Šturma

FIU Law Review

No abstract provided.

The Ilc At Its 70th Anniversary: Its Role In International Law And Its Impact On U.S. Jurisprudence, Siegfried Wiessner, Christian Lee González

FIU Law Review

No abstract provided.

Reply To “Discussion Of ‘On The Soil Water Characteristic Curves Of Poorly Graded Granular Materials In Aqueous Polymer Solutions’ By Junnan Cao, Jongwon Jung, Xiaoyu Song And Bate Bate, Acta Geotechnica, 2018, 13(1):103–116” By Peng Liu And Xiaoming Liu, Zejian Chen, Junnan Cao, Bate Bate, Xiaoyu Song

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

Trainers' Perspectives Of Teacher Professional Development, Harun Parpucu

Dissertations and Theses @ UNI

Considerable attention in the literature has been given to perspectives of teachers and administrators regarding effectiveness of professional development for teachers. However, there is a paucity of research regarding perspectives of trainers and facilitators of professional development for educators. Thus, this dissertation study focused on trainers’ perspectives on effective professional development. More specifically, the study investigated these research questions: (1) What goals and objectives do trainers set for their professional development sessions?; (2) How do trainers facilitate professional development?; (3) How do trainers know they achieved the goals and objectives of their professional development?; (4a) Why do trainers do what …

An Investigation Of Pre-Service Teacher And Faculty Knowledge On Rti, Nichole M. Beckman

Dissertations and Theses @ UNI

Response to Intervention (RTI) is being used in schools more often and continues to be a more accepted way to help students prior to the need for special education services. RTI is a three-tiered system of support that provides an opportunity for teachers to look at their instruction and curriculum and adjust based upon student progress and needs. The RTI framework, when implemented with fidelity, has been shown to effectively assist students get academic help early and limit the number of special education referrals (VanDerHeyden, Witt, & Gilbertson, 2007).

Although RTI has been shown to promote positive change in student …

Master's Recital In Jazz Pedagogy: A Performance-Demonstration Of Rhythm Section Instruments, Trumpet, Electric Wind Instrument, Synthesizer, Compositions, And Arrangements By Demetrio Lyle, Demetrio Lyle

Dissertations and Theses @ UNI

My education at the University of Northern Iowa in the Master of Music, Jazz Pedagogy track has included two full academic years of continuous study as well as one year of independent study. During my two years in residence, I had the pleasure of experiencing an in-depth curriculum of classes, ensembles, and applied lessons, as well as opportunities to lead large and small ensembles. All of these components were designed to make me into a more effective jazz musician in the disciplines of performance, composition, arranging, and pedagogy.

The latter of these disciplines acts as the synthesis of the recital …

The Settlement In The Salt Meadow: Housing In Steinway Village, 1873–1890, Anne Vuagniaux

Art Inquiries

No abstract provided.

David Wojnarowicz: History Keeps Me Awake At Night, Mysoon Rizk

Art Inquiries

No abstract provided.

Determine Airborne Release Fractions (Arf) / Respirable Fractions (Rf) For Use In Safety Based Documents, Michael Quinn, Jacob Miller

Mechanical and Aerospace Engineering Faculty Research & Creative Works

No abstract provided.

Thermodynamic And Transport Properties Of Hydroxylammonium Nitrate-Based Electric Solid Propellant Vapor, Matthew S. Glascock, Patrick D. Drew, Joshua L. Rovey

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Electric solid propellants are advanced solid chemical rocket propellants controlled by electric current. Electric solid propellants may also be used in an electric propulsion system, specifically, an ablative pulsed plasma thruster. Previous experiments with the electric solid propellant HIPEP suggest its ablation processes are similar to traditional propellant polytetrafluoroethylene (C2F4). Better understanding of the ablation and resulting propulsion performance of HIPEP requires a model of its vapor composition and transport properties. This paper reports on the development of such a model. The model was validated by comparing results for C2F4 with literature, which showed agreement with multiple models described. Transport …

Experimental Investigation Of Mixtures Of 1-Ethyl-3-Methylimidazolium Ethyl Sulfate And Ethylammonium Nitrate With Electrospray Propulsion Applications, Mitchell J. Wainwright, Joshua L. Rovey, Shawn W. Miller, Benjamin D. Prince

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Physical properties, performance metrics, and mass spectra of mixtures of two ionic liquids (1-ethyl-3-methylimidazolium ethyl-sulfate aka [Emim][EtSO4] and ethyl ammonium nitrate aka EAN) are investigated from the standpoint of electrospray propulsive characteristics. Spectra suggest that as the [Emim][EtSO4] mixture fraction increases, the intensity of [Emim][EtSO4] related species in the plume also increases, while the presence of EAN decreases. Spectra also show presence of both EAN proton transfer species and species related to chemical reaction of [EtSO4] and water. Despite the volatility of EAN, it emits stably into vacuum at low flow rates when mixed with 25% [Emim][EtSO4]. Spectra also show …

Hydroxylammonium Nitrate Species In A Monopropellant Electrospray Plume, Mitchell J. Wainwright, Joshua L. Rovey, Shawn W. Miller, Benjamin D. Prince, Steven P. Berg

Mechanical and Aerospace Engineering Faculty Research & Creative Works

A mixture of 1-ethyl-3-methylimidazolium ethyl sulfate ([Emim][EtSO4]) and hydroxylammonium nitrate (HAN) is an energetic monopropellant potentially suitable in a multi-mode chemical-electric microtube-electrospray micro propulsion system. In this work, electrospray plume mass spectra are compared between the monopropellant mixture and neat [Emim][EtSO4]. This comparison clearly indicates new and additional species present in the plume due to the addition of HAN. Mass spectra from 20-600 amu/q were obtained over a variety of angles and flow rates from 2 pL/sec to 3 nL/sec in both cation and anion extraction modes. Mass spectrum dependence on flow rate and angular orientation agree qualitatively well with …

A Study Of The Sermon As Bible Study Materials For Small Group And Church Growth: With A Focus On Singing Hope Church, Ki Young Jeong

Doctoral Dissertations and Projects

This study will suggest that the Sunday Service sermons are essential elements for church growth and the sermons can be used as Bible study materials in the small group meetings. Korean churches kept on growing after the Pyeongyang Great Revival in 1907. However, Korean churches stopped growing since 2000, at which point they started to decline in numbers. One of the reasons is that the congregants do not live according to the Word of God that is proclaimed from the pulpit. There are various reasons for church growth. The researcher observed that continuously applying Sunday sermons to church members is …

The Influence Of Teacher Effectiveness On Student Achievement: A Case Study, Linda Marie Rogers

Doctoral Dissertations and Projects

The purpose of this qualitative case study was to explore the perceptions and professional practices of 15 middle school teachers regarding teacher effectiveness and the influence on student achievement. The five research questions that guided this study aligned with the Georgia Department of Education five domains of teacher effectiveness: planning, instructional delivery, assessment, learning environment, and communication. This study implemented the qualitative case study design. The research was conducted in four middle schools in a school district in Georgia. The research used individual interviews, focus group interviews, and a prearranged classroom observation. The cross-case synthesis analysis method was implemented to …

The Strength Of Weak Ties: Eliza Haywood’S Social Network In The Dunciad In Four Books (1743), Ileana Baird

All Works

No abstract provided.

Imagined Affordances Of Instagram And The Fantastical Authenticity Of Female Gulf-Arab Social Media Influencers, Zoe Hurley

All Works

© The Author(s) 2019. This study explores the image sharing site Instagram to reveal how affordances, or uses of the platform, occur within a nexus of technological architecture, sociocultural contexts, and globalized commercial practices. It suggests social actors draw upon Instagram’s affordances at material, conceptual, and imaginary levels while using social media. This triadic model for theorizing affordances of Instagram responds to the need for mapping ontologies and typologies of social media within increasingly visual, intercultural, and non-Western contexts. The lenses of critical multimodality and a participant-centered method consider how female Gulf-Arab social media influencers operate through an interplay of …

Understanding Diverse Bilingual Learners: The Need For A Transdisciplinary Lens, Amy Weimer, Mario Gil, J. Joy Esquierdo

Bilingual and Literacy Studies Faculty Publications

The chapter synthesizes findings from diverse disciplinary perspectives to make the case that we need a new lens to better serve the diversity of bilingual learners. Drawing upon theories and findings from studies by educators, child developmentalists, and neuroscientists, but moving beyond any one disciplinary perspective, the authors aim to create a unity of new knowledge developed of theories from across disciplines. This approach is exactly what is needed to address the complexity of factors surrounding bilingual learners. Taking a transdisciplinary approach will allow us to move closer toward an understanding of the many factors affecting bilingual children and families, …

Reflector Magazine, Georgia Southern University, Student Media

Reflector Magazine

• Southern Limelight: Student Features
• A Brief History of Braids
• A Georgia Southern Student's Recovery from Anorexia Nervosa
• Beyond The Designs: Georgia Southern Student Brandon Curtis Aims For More With His Fashion Brand
• Game Day with GS Softball Player Mekhia Freeman
• Party Culture: The Dark Side to College Partying
• The Georgia Picker: The Man Behind My Cousin Vinny's Bargain Barn
• A Tale Of Two Main Streets: One Consignment Store's Journey To Statesboro
• Sexual Assault Awareness Photo Story
• How Much Of A Stereotypical College Student Are You? Quiz
• Miscellany - For The Arts

Chinese Graduate Student Understandings And Struggles With Critical Thinking: A Narrative-Case Study, Kyle J. Lucas

International Journal for the Scholarship of Teaching & Learning

Qualitative research offers the potential to inform an ongoing issue concerning why international students struggle with critical thinking. This article approaches the issue by examining how international graduate students understand critical thinking as well as the challenges they have faced with critical thinking. The study used a narrative-case study framework to collect data from 4 Chinese international graduate students at a large mid-Western research university in the United States. The results showed that the participants had diverse conceptions of critical thinking and that they tended to focus on dispositions related to critical thinking rather than skills. These results suggest that …

Action Research In Doctoral Coursework: Perceptions Of Independent Research Experiences, Michelle Vaughan 5427231, Christopher Boerum, Linda S. Whitehead

International Journal for the Scholarship of Teaching & Learning

Action research focuses on creating meaningful and authentic change for those involved, whether in a classroom or community. This action research study examined the perceptions and potential benefits of action research coursework within a doctoral program. Participants were a cohort of doctoral students (n=7) that participated in a graduate level action research course. Students in this study experienced shifts in their identities as researchers, knowledge of the methodology, and their perception of the function and value of action research. The authors argue that action research is a viable course option in doctoral programs and the research skills supported through the …

From Language Learners To Language Teachers: Construction And Implementation Of Pedagogical Competence In Pronunciation Instruction, Chin-Wen Chien

International Journal for the Scholarship of Teaching & Learning

This study explored 36 undergraduates’ knowledge construction and implementation of pedagogical competence in pronunciation instruction. These undergraduates were language learners themselves, but they were trained to become language teachers receiving pronunciation instruction in an English Pronunciation Instruction course at a university in Taiwan. Data in this study included interview, document, and videos. This study had the following major findings. First, their language competence, knowledge of phonology and pedagogy were constructed in the tertiary course through the instructor’s demonstration and their own teaching practice. Secondly, they demonstrated limited knowledge in explicitly explaining pronunciation features to their learners and designing drill practices. …

Short-Term Study Abroad For Pre-Service Teachers: Personal And Professional Growth In Brighton, England, Erin Mikulec

International Journal for the Scholarship of Teaching & Learning

This study examines the personal and professional development of 34 pre-service teachers who participated in a study abroad program for education majors in Brighton, England. The participants completed a variety of assignments and learning activities before, during, and after the program, including 20 hours of observation in area schools. The results indicate that in terms of personal development, the pre-service teachers experienced increased levels of self-confidence, autonomy, tolerance for ambiguity, flexibility and adaptability, and interpersonal skills. Professionally, the participants identified the role of culture in education and pedagogy, described being better equipped to work with diverse learners in the United …

A Critical Review Of Using High Viscosity Friction Reducers As Fracturing Fluids For Hydraulic Fracturing Applications, Mohammed Ba Geri, Abdulmohsin Imqam, Ralph E. Flori

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

The primary purpose of using traditional friction reducers in stimulation treatments is to overcome the tubular drag while pumping at high flow rates. Hydraulic fracturing is the main technology used to produce hydrocarbon from extremely low permeability rock. Even though slickwater (water fracturing with few chemical additives) used to be one of the most common fracturing fluids, several concerns are still associated with its use, including usage of freshwater, high-cost operation, and environmental issues. Therefore, current practice in hydraulic fracturing is to use alternative fluid systems that are cost effective and have less environmental impact, such as fluids which utilize …

Investigate The Rheological Behavior Of High Viscosity Friction Reducer Fracture Fluid And Its Impact On Proppant Static Settling Velocity, Mohammed Ba Geri, Abdulmohsin Imqam, Andrey Bogdan, Lingjuan Shen

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

The recent and rapid success of using high viscosity friction reducers (HVFRs) in hydraulic fracturing treatments is due to several advantages over other fracture fluids (e.g. linear gel), which include better proppant carrying capability, induce more complex fracture system network with higher fracture length, and overall lower costs due to fewer chemicals and less equipment on location. However, some concerns remain, like how HVFRs rheological properties can have impact on proppant transport into fractures. The objective of this study is to provide a comprehensive understanding of the influence the rheological characterization of HVFRs have on proppant static settling velocity within …