Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (10866)
- Education (3691)
- Engineering (3447)
- Computer Sciences (2697)
- Social and Behavioral Sciences (2402)
-
- Life Sciences (1981)
- Environmental Sciences (1620)
- Chemistry (1436)
- Physics (1398)
- Mathematics (1329)
- Earth Sciences (1252)
- Arts and Humanities (1185)
- Medicine and Health Sciences (1043)
- Electrical and Computer Engineering (991)
- Higher Education (836)
- Science and Mathematics Education (830)
- Computer Engineering (797)
- Law (749)
- Business (631)
- Statistics and Probability (615)
- Mechanical Engineering (614)
- Oceanography and Atmospheric Sciences and Meteorology (606)
- Teacher Education and Professional Development (575)
- Geology (511)
- Educational Assessment, Evaluation, and Research (501)
- Curriculum and Instruction (495)
- Public Affairs, Public Policy and Public Administration (468)
- Civil and Environmental Engineering (448)
- Astrophysics and Astronomy (401)
- Psychology (398)
- Institution
-
- University of Nebraska - Lincoln (1093)
- Purdue University (696)
- TÜBİTAK (665)
- University of South Florida (508)
- Singapore Management University (505)
-
- Utah State University (433)
- University of Kentucky (416)
- Louisiana State University (403)
- Old Dominion University (367)
- City University of New York (CUNY) (359)
- Missouri University of Science and Technology (357)
- Brigham Young University (353)
- Georgia Southern University (332)
- Portland State University (310)
- Walden University (301)
- Nova Southeastern University (298)
- Association of Arab Universities (293)
- Embry-Riddle Aeronautical University (271)
- University of Plymouth (262)
- University of Arkansas, Fayetteville (259)
- University of New Mexico (253)
- University of Texas at El Paso (242)
- Clemson University (239)
- Wayne State University (225)
- University of Central Florida (224)
- University of South Carolina (224)
- Wright State University (218)
- California Polytechnic State University, San Luis Obispo (216)
- University of Texas at Arlington (213)
- West Virginia University (211)
- Keyword
-
- Education (306)
- Mathematics (285)
- Applied sciences (251)
- Pure sciences (137)
- Climate change (109)
-
- Georgia Southern University (102)
- Optimization (102)
- Machine learning (98)
- Assessment (97)
- STEM (97)
- Technology (94)
- Higher education (89)
- Simulation (89)
- Physics (84)
- Chemistry (77)
- Science (76)
- Modeling (73)
- Earth sciences (68)
- Statistics (64)
- Sustainability (64)
- IMSA (62)
- Illinois Mathematics and Science Academy (61)
- Curriculum (60)
- Collaboration (59)
- Professional development (59)
- Social sciences (59)
- Security (58)
- Engineering (57)
- Geology (56)
- Research (56)
- Publication
-
- Theses and Dissertations (1004)
- Electronic Theses and Dissertations (482)
- Research Collection School Of Computing and Information Systems (436)
- Faculty Publications (395)
- Turkish Journal of Electrical Engineering and Computer Sciences (372)
-
- Dissertations (293)
- Walden Dissertations and Doctoral Studies (288)
- Open Access Dissertations (285)
- Applied Mathematics & Information Sciences (245)
- USF Tampa Graduate Theses and Dissertations (198)
- Publications and Research (184)
- Theses (182)
- Masters Theses (155)
- School of Engineering, Computing and Mathematics (155)
- Doctoral Dissertations (151)
- Nebraska Tractor Tests (136)
- Open Access Theses (133)
- Publications (132)
- Graduate Theses and Dissertations (131)
- Honors Theses (125)
- Open Access Theses & Dissertations (123)
- Turkish Journal of Mathematics (120)
- Articles (118)
- LSU Doctoral Dissertations (113)
- Master's Theses (111)
- Dissertations and Theses (110)
- Browse all Theses and Dissertations (109)
- Departmental Technical Reports (CS) (107)
- Dissertations, Theses, and Capstone Projects (107)
- Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions) (105)
- Publication Type
- File Type
Articles 20911 - 20940 of 24474
Full-Text Articles in Entire DC Network
Metabolomics Of Mammalian And Cellular Models Of Aging, Nathan Gonzales Duval
Metabolomics Of Mammalian And Cellular Models Of Aging, Nathan Gonzales Duval
Electronic Theses and Dissertations
Aging is often associated with impaired cognition and a progressive loss of organ function over time accompanied by an increased susceptibility for many disorders, including Alzheimer's disease (AD), Parkinson's disease (PD), heart disease, osteoporosis, type II diabetes, and many forms of cancer. With a rapidly aging population, the negative impacts of aging and age-related disorders is a major cause of increased human suffering both for affected individuals and for families and caregivers. Metabolic changes are also apparent in normal aging, but may increase in magnitude or nature with accompanying disease states or with accelerated aging. Thus, studying aging in a …
A Meta-Analysis Of Research-Based Reading Interventions With English Language Learners, Maritza Torres
A Meta-Analysis Of Research-Based Reading Interventions With English Language Learners, Maritza Torres
Electronic Theses and Dissertations
The Response to Intervention (RTI) model, introduced as part of the reauthorization of the Individuals with Disabilities Education Act in 2004, is a proactive process of early interventions and evidence-based instruction for all students. RTI has additional intensive and individualized interventions to prevent student underachievement, including students at risk for academic failure and culturally and linguistically diverse students (Vellutino et al., 1996; Donovan & Cross, 2002; Francis, Rivera, Lesaux, Kieffer, & Rivera, 2006; Fuchs & Fuchs, 2006; Vellutino, Scanlon, Small, & Fanuele, 2006; Al Otaiba et al., 2009). Klingner and Edwards (2006) suggest that the needs of culturally and linguistically …
Implementation Of An Air Supply Unit Control Scheme For The Uc2av (Unmanned Circulation Control Aerial Vehicle), Cameron Rosen
Implementation Of An Air Supply Unit Control Scheme For The Uc2av (Unmanned Circulation Control Aerial Vehicle), Cameron Rosen
Electronic Theses and Dissertations
The expanded prevalence of Unmanned Aerial Vehicles (UAVs) in recent years has created many opportunities to research novel applications for their use, enabled by the reduced cost, mission flexibility, and reduced risk that small-scale unmanned platforms provide in comparison to larger aircraft. Despite the versatility of unmanned aviation, limitations on payload size and weight, fuel and power capacity, and takeoff and landing infrastructure can restrict UAV applications, and have created a need for lift augmenting technologies that can reduce the impact of these limitations. Circulation Control (CC) is an active flow technique that has been proven as a method for …
Systematic Errors In Intro Lab Video Analysis, John Zwart, Kayt E. Frisch, Tim Martin
Systematic Errors In Intro Lab Video Analysis, John Zwart, Kayt E. Frisch, Tim Martin
Faculty Work Comprehensive List
In video analysis lab experiments, students frequently find large discrepancies between results based on self-filmed videos and expected values (e.g. for g determined by a fit to projectile motion data). These differences are frequently far larger than the uncertainty calculated from their fit. Using an inexpensive point-and-shoot camera with a 4x optical zoom to record video, we investigated two possible causes of this error: the effect of placing the reference meter stick at a different object-to-camera distance and the effect of the motion of interest being in a plane not perpendicular to the camera lens. When we observed these phenomena …
Analyzing Unique-Matching Games Using Elementary Mathematics, Calvin Jongsma, Tom Clark
Analyzing Unique-Matching Games Using Elementary Mathematics, Calvin Jongsma, Tom Clark
Faculty Work Comprehensive List
We present here an analysis of the game of Spot It! that can be used as background information for the purpose of leading a math circle around the game. The presentation here follows the progression of solving the puzzle for simple cases first and culminating in the solution of the original game.
The First Open-Source General Relativistic Force-Free Electrodynamics Code, Maria Babiuc-Hamilton, Zach Etienne, Mew-Bing Wan
The First Open-Source General Relativistic Force-Free Electrodynamics Code, Maria Babiuc-Hamilton, Zach Etienne, Mew-Bing Wan
Physics Faculty Research
We are writing the first open-source, general relativistic force-free electrodynamics code: GiRaFFE. The goal is to numerically simulate neutron star and black hole magnetospheres. The GiRaFFE is alive! It has passed a number of 1D code validation tests, and 3D tests are underway. We plan to release the code and test suite initial data routines open-source to the community.
Changing The Scholarly Sources Landscape With Geomorphology Undergraduate Students, Heidi Blackburn, Ashlee L.D. Dere
Changing The Scholarly Sources Landscape With Geomorphology Undergraduate Students, Heidi Blackburn, Ashlee L.D. Dere
Criss Library Faculty Publications
Science is a core discipline in academia yet the focus of most undergraduate technical writing is generally on the data and results, not the literature review. The Science, Technology, Engineering, and Math (STEM) librarian and a new geology professor at the University of Nebraska at Omaha (UNO) collaborated to develop an information literacy session for students in a geomorphology class. Here we outline the background of the campus STEM initiatives and the assignment as well as the library instruction activity, learning outcomes, and assessment components. The activity improved student use of scholarly sources and we provide suggested activity modifications for …
2016-2017 Undergraduate Bulletin, Rochester Institute Of Technology
2016-2017 Undergraduate Bulletin, Rochester Institute Of Technology
RIT Digital Archives
No abstract provided.
2016-2017 Graduate Bulletin, Rochester Institute Of Technology
2016-2017 Graduate Bulletin, Rochester Institute Of Technology
RIT Digital Archives
No abstract provided.
Associative Data Analytics And Its Application To Protein Crystallization Analysis, Imren Dinc
Associative Data Analytics And Its Application To Protein Crystallization Analysis, Imren Dinc
Dissertations
Data analytics focuses on processing raw data to extract important information and involves data acquisition, data analysis, and visualization. To maximize the amount of information obtained, an efficient experimental design method is necessary. Many existing experimental design methods do not consider the previous experimental results when constructing new trial conditions. It is quite difficult to employ supervision in this domain due to limited data size and skewed data distribution. Once the data is collected, proper analysis methods should be developed for making useful decisions regarding the type of data collected (e.g., numerical, time, visual, image analysis). Visualization that encompasses both …
Certifiable Higher Order Sliding Mode Control Practical Stability Margins Approach, Chandrasekhara Bharath Panathula
Certifiable Higher Order Sliding Mode Control Practical Stability Margins Approach, Chandrasekhara Bharath Panathula
Dissertations
The Higher Order Sliding Mode (HOSM) controllers are well known for their robustness/insensitivity to bounded perturbations and for handling any given arbitrary relative degree system. The HOSM controller is to be certified for robustness to unmodeled dynamics, before deploying the controller for practical applications. Phase Margin (PM) and Gain Margin (GM) are the classical characteristics used in linear systems to quantify the linear controller robustness to unmodeled dynamics, and certain values of these margins are required to certify the controller. These conventional margins (PM and GM) are extended to Practical Stability Phase Margin (PSPM) and Practical Stability Gain Margin (PSGM) …
Nonbinary Coded-Higher Order Modulation In Faster-Than-Nyquist Signaling, Asma Ahmad Alqudah
Nonbinary Coded-Higher Order Modulation In Faster-Than-Nyquist Signaling, Asma Ahmad Alqudah
Dissertations
Fast and reliable data transmission together with high bandwidth efficiency are among the main design aspects in a modern digital communication system. There are many options available to meet these requirements, but the approach adopted in this dissertation is the nonorthogonal transmission scheme, faster-than-Nyquist (FTN). In FTN, the data bits are transmitted at a rate higher that that allowed by Nyquist criterion. This transmission occurs while keeping a fixed power spectral density (PSD) of the system. This technique was proposed by Mazo in 1975, and since then has been extended in many directions. Considering the bandwidth-efficiency as a key factor, …
Predictive Simulation Of Gas Adsorption In Fixed-Beds And Limitations Due To The Ill-Posed Danckwerts Boundary Condition, James Clinton Knox
Predictive Simulation Of Gas Adsorption In Fixed-Beds And Limitations Due To The Ill-Posed Danckwerts Boundary Condition, James Clinton Knox
Dissertations
The 1-D axially dispersed plug flow model is a mathematical model widely used for the simulation of adsorption processes. Lumped mass transfer coefficients such as the Glueckauf linear driving force (LDF) term and the axial dispersion coefficient are generally obtained by fitting simulation results to the experimental breakthrough test data. An approach is introduced where these parameters, along with the only free parameter in the energy balance equations, are individually fit to specific test data that isolates the appropriate physics. It is shown that with this approach this model provides excellent simulation results for the CO2 on zeolite 5A sorbent/sorbate …
Robust Support Media For High Throughput Chromatographic Separations, Javier Sanchez Santiago
Robust Support Media For High Throughput Chromatographic Separations, Javier Sanchez Santiago
Dissertations
Affinity chromatography is used to separate biomolecules based on highly specific interactions, such as receptor and ligand, enzyme and substrate or antigen and antibody. Traditional chromatographic separation systems have the disadvantages of low flowrates, high pressure drop across the column, low capacity and poor reusability. Ceramic monoliths have been previously used as active support for affinity chromatographic columns due to their compact geometry and outstanding mechanical properties. In addition, mathematical models have been developed in order to determine the adsorption and elution times depending on the monolith geometry. The reversible interaction between L-asparagine and L-asparaginase has been exploited, using a …
The Relationship Between Successful Completion And Sequential Movement In Self-Paced Distance Courses, Janine Lim
The Relationship Between Successful Completion And Sequential Movement In Self-Paced Distance Courses, Janine Lim
School of Distance Education Faculty Publications
A course design question for self-paced courses includes whether or not technological measures should be used in course design to force students to follow the sequence intended by the course author. This study examined learner behavior to understand whether the sequence of student assignment submissions in a self-paced distance course is related to successful completion of the course. The study included 543 students in 89 different general education courses at a private university in the United States during a two year period. Results indicate that students who completed at least one assignment or exam out of the intended sequence of …
It’S My Stock And I’Ll Vote If I Want To: Conflicted Voting By Shareholders In (Hostile) M&A Deals, Matteo Gatti
It’S My Stock And I’Ll Vote If I Want To: Conflicted Voting By Shareholders In (Hostile) M&A Deals, Matteo Gatti
University of Memphis Law Review
No abstract provided.
Diminished Quality Of Life Among Women Affected By Ebola, Jessi Hanson, Alexis Decosimo, Megan Quinn
Diminished Quality Of Life Among Women Affected By Ebola, Jessi Hanson, Alexis Decosimo, Megan Quinn
ETSU Faculty Works
This article analyzes data collected from Liberian women afflicted by the Ebola virus disease, survivors of the virus and noninfected persons living in Ebola-affected homes. This research is one of the first statistical analyses examining factors diminishing quality of life: negative experiences, stigma, and psychosocial symptoms among females affected by the virus after the outbreak. The research presents a thorough literature review, including research related to other infectious diseases like HIV/AIDS, to inform the gap in studies on Ebola’s effects on quality of life. Women who are Ebola virus disease survivors demonstrate significant differences in stigma and psychosocial stress when …
Trace Fossils From The Shawangunk Formation In The Hudson Valley Indicate An Estuarine Depositional Environment, Howard R. Feldman, Alex Bartholemew, Carlton E. Brett, Matthew B. Vrazo, Marcelo Rosensaft
Trace Fossils From The Shawangunk Formation In The Hudson Valley Indicate An Estuarine Depositional Environment, Howard R. Feldman, Alex Bartholemew, Carlton E. Brett, Matthew B. Vrazo, Marcelo Rosensaft
Lander College for Women - The Anna Ruth and Mark Hasten School Publications and Research
The Middle Silurian Shawangunk Formation crops out in the lower Hudson Valley and extends toward the southwest into New Jersey and Pennsylvania. It reaches a maximum thickness around Guymard (1,400 ft.; 400m) and gradually thins toward the northeast, pinching out near Binnewater, New York. The formation consists of gray conglomerate, quartz arenite, and minor shale. Worm burrows, Arthrophycus, Skolithos, Planolites?, and a bilobed resting trace have been found at different stratigraphic horizons in the Shawangunk Formation. All traces are associated with a finer, sandy matrix and/or hematite-rich interval rather than a coarse, pebbly quartz sandstone lithology dominant in the bulk …
Stabilization Of Compressor Surge Using Gain-Scheduled Controller, Zaid A. Alsayouri
Stabilization Of Compressor Surge Using Gain-Scheduled Controller, Zaid A. Alsayouri
Master's Theses and Capstones
Gain scheduling is a control method that is used in nonlinear systems to optimize their controlled performance and robustness over a wide range of operating conditions. It is one of the most commonly used controller design approaches for nonlinear systems. In this control technique, the controller consists of a collection of linear controllers, each of which provides satisfactory closed-loop stability and performance for a small operating region, and combined they guarantee the stability of the system along the entire operating range. The operating region of the system is determined by a scheduling signal, also known as the scheduling variable, which …
Challenges In Developing Applications For Aging Populations, Drew Marie Williams, Md O. Gani, Ivor D. Addo, Akm Jahangir Alam Majumder, Chandana Tamma, Mong-Te Wang, Chih-Hung Chang, Sheikh Iqbal Ahamed, Cheng-Chung Chu
Challenges In Developing Applications For Aging Populations, Drew Marie Williams, Md O. Gani, Ivor D. Addo, Akm Jahangir Alam Majumder, Chandana Tamma, Mong-Te Wang, Chih-Hung Chang, Sheikh Iqbal Ahamed, Cheng-Chung Chu
Mathematics, Statistics and Computer Science Faculty Research and Publications
Elderly individuals can greatly benefit from the use of computer applications, which can assist in monitoring health conditions, staying in contact with friends and family, and even learning new things. However, developing accessible applications for an elderly user can be a daunting task for developers. Since the advent of the personal computer, the benefits and challenges of developing applications for older adults have been a hot topic of discussion. In this chapter, the authors discuss the various challenges developers who wish to create applications for the elderly computer user face, including age-related impairments, generational differences in computer use, and the …
An Investigation Into The Accessibility Of Ap Calculus, Brian Austin Dodge
An Investigation Into The Accessibility Of Ap Calculus, Brian Austin Dodge
Capstones, Research Projects, and Curricula
This is a mixed methods ethnographic study conducted to determine what obstacles students face when approaching AP Calculus. I focused my study on home economics, peer pressure, ELL status and home support. Overall, I found that being a student who is ELL (hereafter defined as a student who was or currently is required to take ACCESS testing) had the most negative effect of the previously listed factors. Home economics and peer pressure were inconclusive or often had no effect. Finally, having a supportive home life in the form of parents who value education, encourage goal-setting, and set high expectations had …
Nuclear Space Facts, Strange And Plain, Jeremy Becnel, Ambar Sengupta
Nuclear Space Facts, Strange And Plain, Jeremy Becnel, Ambar Sengupta
Faculty Publications
We present a scenic but practical guide through nuclear spaces and their dual spaces, examining useful, unexpected, and often unfamiliar results both for nuclear spaces and their strong and weak duals.
Section 2: Design & Manufacturing, Ectc Coordinating Committee
Section 2: Design & Manufacturing, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 31-62
Section 4: Materials, Ectc Coordinating Committee
Section 4: Materials, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 95-124
Section 5: Miscelleneous, Ectc Coordinating Committee
Section 5: Miscelleneous, Ectc Coordinating Committee
Early Career Technical Journal (ECTJ)
Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 125-152
Tractor Power Hop: Wheel Normal Reaction Analysis, Siyuan Hunter Zhang, Vladimir Vantsevich
Tractor Power Hop: Wheel Normal Reaction Analysis, Siyuan Hunter Zhang, Vladimir Vantsevich
Early Career Technical Journal (ECTJ)
Section 2: Design & Manufacturing; pp. 38-41
Numerical Investigation Of Shock Wave Propoagtion In Biomineralized Fish Scale, Matthew Nelms, Wayne Hodo, A M. Rajendran
Numerical Investigation Of Shock Wave Propoagtion In Biomineralized Fish Scale, Matthew Nelms, Wayne Hodo, A M. Rajendran
Early Career Technical Journal (ECTJ)
Section 3: Materials; pp. 90-94
Hierarchical Grouping In Particle Swarm Optimization – Hgpso, Sanjay Sarma O V, Ramana M. Pidaparti, Ankita Joshi
Hierarchical Grouping In Particle Swarm Optimization – Hgpso, Sanjay Sarma O V, Ramana M. Pidaparti, Ankita Joshi
Early Career Technical Journal (ECTJ)
Section 4: Materials; pp. 97-103
Comparison Of Stop Sign Distance Detection Using 2d And 3d Cameras, Mahbubul Islam, Kevin Mcfall
Comparison Of Stop Sign Distance Detection Using 2d And 3d Cameras, Mahbubul Islam, Kevin Mcfall
Early Career Technical Journal (ECTJ)
Section 5: Miscelleneous; pp. 127-130
A Mesoscale-Based Homogenization Study Of Sand Using The Discrete Element Method, Gerald Pekmezi, David Littlefield
A Mesoscale-Based Homogenization Study Of Sand Using The Discrete Element Method, Gerald Pekmezi, David Littlefield
Early Career Technical Journal (ECTJ)
Section 4: Materials; pp. 104-111