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Articles 3541 - 3570 of 37633
Full-Text Articles in Entire DC Network
Making Geoscience Fieldwork Inclusive And Accessible For Students With Disabilities, Alison Stokes, Anthony D. Feig, Christopher L. Atchison, Brett Gilley
Making Geoscience Fieldwork Inclusive And Accessible For Students With Disabilities, Alison Stokes, Anthony D. Feig, Christopher L. Atchison, Brett Gilley
School of Geography, Earth and Environmental Sciences
No abstract provided.
Experimental Investigation On Capillary Water Absorption In Discrete Planar Cracks, Licheng C. Wang, J. Bao
Experimental Investigation On Capillary Water Absorption In Discrete Planar Cracks, Licheng C. Wang, J. Bao
International Conference on Durability of Concrete Structures
Water movement is responsible for the deterioration of concrete and concrete structures, especially when distributed microcracks exist because cracks can facilitate the ingress of aggressive agents. Experiment was carried out on capillary water absorption by discrete planar cracks to clarify the effect of crack width on the transport speed of water by crack. The granite samples were used to create parallel and smooth cracks with purpose to avoid rehydration of the cement-based materials. Two granite blocks were applied to joint by glue for artificially fabricating a single parallel crack by means of ultra thin steel disc with various thicknesses of …
Micro-Mechanical Analysis Of Corrosion Products Formed During Long-Term Carbonation Induced Corrosion Of Steel, Marijana Serdar, Dubravka Bjegovic, Valérie L’Hostis, Stéphane Poyet, Damien Féron
Micro-Mechanical Analysis Of Corrosion Products Formed During Long-Term Carbonation Induced Corrosion Of Steel, Marijana Serdar, Dubravka Bjegovic, Valérie L’Hostis, Stéphane Poyet, Damien Féron
International Conference on Durability of Concrete Structures
During corrosion distinct types of corrosion products form, composed of different ratios of ferrous ions and oxide, hydroxides. Corrosion products have different physical and mechanical properties, mainly density, resistivity, volume and modulus of elasticity compared to iron. Knowing properties of corrosion products is indispensable for service life modelling of structures and can give valuable insight into the long-term corrosion propagation process. In this study micro-indentation method was used to evaluate mechanical properties of different layers formed during long-term carbonation induced corrosion of steel in concrete. Investigation was performed on three sets of reinforced concrete samples, that underwent corrosion during 50, …
Pore Characteristics And Computed Permeability Of Pastes Subject To Freeze-Thaw Cycles At Very Early Ages By X-Ray Ct, Ya Wei, Zehong Wu, Xiang Gao
Pore Characteristics And Computed Permeability Of Pastes Subject To Freeze-Thaw Cycles At Very Early Ages By X-Ray Ct, Ya Wei, Zehong Wu, Xiang Gao
International Conference on Durability of Concrete Structures
Freeze-thaw cycling can damage microstructure of concrete and reduce the service life of concrete structures. This is especially detrimental for concrete subject to freeze-thaw cycles at very early-ages, such as within the first few days after constructions. Typical low and high water-to-cement (w/c) ratio pastes are investigated experimentally and numerically in this study. The pastes are subject to freeze-thaw cycles at the age of 1, and 7 days and then sealed-cured to the age of 45 days. The pore size distribution is measured and quantified by X-ray computer tomography (CT) with high resolution. The permeability of the corresponding pastes is …
Surface Treatments For Concrete Under Physical Salt Attack, Mohamed Sakr, Mohamed T. Bassuoni
Surface Treatments For Concrete Under Physical Salt Attack, Mohamed Sakr, Mohamed T. Bassuoni
International Conference on Durability of Concrete Structures
Physical salt attack (PSA) is a key deterioration mechanism for concrete structures in contact with salt-rich media. Yet, procedures and techniques for protecting and repairing concrete affected by PSA are not adequately addressed in the technical literature. Therefore, in this study, three surface coatings of concrete were tested to determine their ability to withstand conditions stimulating to PSA. The treatments were selected to achieve either a single function such as acting as a membrane layer or hydrophobic agent, or combined pore blocking and water repelling functions. Coatings were applied on a concrete mixture typically used for residential foundations in Canada. …
Establishment Of A Numerical Model For Sulfate Attacked Concrete Considering Multi-Factors, Shanshan Qin, Dujian Zou, Jun Jiang, Tiejun Liu
Establishment Of A Numerical Model For Sulfate Attacked Concrete Considering Multi-Factors, Shanshan Qin, Dujian Zou, Jun Jiang, Tiejun Liu
International Conference on Durability of Concrete Structures
Sulfate attack is one of the major durability problems of concrete structures, which is manifested by expansive cracks and deterioration of cement paste. In this study, a numerical model is proposed to predict the process of ionic diffusion into concrete under external sulfate attack. The chemical reaction and diffusion processes are considered in this model. Furthermore, the influence of calcium leaching, chemical activity of multi-ions, temperature and changes in porosity are also taken into account. The initial porosity and tortuosity are assumed to be homogeneous in concrete, and the chemical potential gradient is regarded as the driving force for ions …
An Image-Based Local Homogenization Method To Model Mass Transport At The Steel-Concrete Interface, Zhidong Zhang Dr, Ueli Angst Prof, Alexander Michel Prof, Mads Jensen Dr
An Image-Based Local Homogenization Method To Model Mass Transport At The Steel-Concrete Interface, Zhidong Zhang Dr, Ueli Angst Prof, Alexander Michel Prof, Mads Jensen Dr
International Conference on Durability of Concrete Structures
Mass transport (moisture and ions) at the steel-concrete interface is closely related to corrosion of rebar in reinforced concrete structures. Thus, in the model simulating mass transport, the structure of the steel-concrete interface must be well represented. In this study, an image-based local homogenization method is proposed based on images taken in the scanning electron microscope (SEM) under the backscattered electron (BSE) detector. According to the gray level of the image, porosity can be calculated and then proposed equations are used to associate the transport properties (sorption isotherms, diffusion coefficients and permeability) with porosity. Experimental data of chloride concentration taken …
Modelling Of Capillary Pore Structure Evolution In Portland Cement Pastes Based On Irregular-Shaped Cement Particles, Cheng Liu, Mingzhong Zhang, G Fang, Yun Bai, Y Zhang
Modelling Of Capillary Pore Structure Evolution In Portland Cement Pastes Based On Irregular-Shaped Cement Particles, Cheng Liu, Mingzhong Zhang, G Fang, Yun Bai, Y Zhang
International Conference on Durability of Concrete Structures
The pore structure plays a crucial role in durability performance of cement-based materials. However, the pore structure in cement pastes is highly dependent on the initial packing of cement particles and cement hydration process, which seems to be related to the shapes of cement particles. This paper proposed a numerical method to investigate the effect of cement particle shapes on capillary pore structures in cement pastes. In this study, irregular-shaped cement particles with various shapes are generated using a novel central growth model, and then incorporated into CEMHYD3D model to simulate Portland cement hydration. Some home-made programs of determining pore …
Durability Design Based On Serviceability Stage For Corroded Reinforced Concrete Structures, Zhongxiaoping Zhongxiaoping, J Zhu, Cb Yuan, Wl Jin, J Xia
Durability Design Based On Serviceability Stage For Corroded Reinforced Concrete Structures, Zhongxiaoping Zhongxiaoping, J Zhu, Cb Yuan, Wl Jin, J Xia
International Conference on Durability of Concrete Structures
After analyzing such factors as the structural durability failure state, environmental load and resistance, the durability limit state equation considering steel corrosion initiation, concrete cover cracking and maximum corrosion-induced damage value is established to meet its durability service life requirements under chloride environment. For three different durability limit states, the design theory of reliability, the partial factors of variables for load and resistance are introduced to reflect the target reliability requirements of structural durability, and subsequently the partial factors expression form of structural durability design is established. According to the principle of the same reliability level for partial factors design …
Fall 2019, Faculty Travel Reports From Summer 2019, Unh Global Education Center
Fall 2019, Faculty Travel Reports From Summer 2019, Unh Global Education Center
UNH International Educator Newsletter
No abstract provided.
Role Of The Conserved Ndr/Lats Kinase Orb6 In Controlling Cell Growth And Stress Adaptation, Chuan Chen
Role Of The Conserved Ndr/Lats Kinase Orb6 In Controlling Cell Growth And Stress Adaptation, Chuan Chen
Open Access Dissertations
Adaptation to the nutritional environment is critical for all cells. RAS GTPase is a highly conserved GTP binding protein with crucial functions for cell growth and differentiation in response to environmental conditions. Inappropriate activation of human RAS GTPase has a causal role in cancer, congenital malformations, and neurodevelopmental disorders. Our lab previously found that the conserved NDR kinase Orb6 regulates the mRNA and protein levels of Ras1 guanine nucleotide exchange factor (GEF) Efc25, by controlling the coalescence of the mRNA-binding protein Sts5 into ribonucleoprotein (RNP) granules. However, it is still unclear whether the Orb6-Sts5 axis regulates RAS GTPase activity in …
November 8, 2019, University Of Mississippi. S. Gale Denley Media Center
November 8, 2019, University Of Mississippi. S. Gale Denley Media Center
Daily Mississippian
No abstract provided.
Speaker Biographies, Sienna Craig, John Kopper
Speaker Biographies, Sienna Craig, John Kopper
Women on the Faculty: A Dartmouth Centennial
This document contains the biographies of all of the event speakers.
Bis: Learner Designed Major, Joanna Burkhardt
Bis: Learner Designed Major, Joanna Burkhardt
Library Impact Statements
No abstract provided.
Prevalence Of Anxiety And Depressive Symptoms And Its Associated Factors Among Undergraduate Nursing Students, Salima M. Farooq, Yasmin P. Parpio, David Arthur, Maryam Pyar Ali Lakhdir, Lubna Ghazal, Rahim Shirin
Prevalence Of Anxiety And Depressive Symptoms And Its Associated Factors Among Undergraduate Nursing Students, Salima M. Farooq, Yasmin P. Parpio, David Arthur, Maryam Pyar Ali Lakhdir, Lubna Ghazal, Rahim Shirin
Biennial Convention (CONV)
Our study examines burden of anxiety depressive symptoms among undergraduate nursing students, this session will be benefitial for nursing faculty, policy makers and nursing students.
Successful Space Management Projects: The R. M. Cooper Library Adobe Digital Studio Experience, Derek Wilmott, Bobby Hollandsworth
Successful Space Management Projects: The R. M. Cooper Library Adobe Digital Studio Experience, Derek Wilmott, Bobby Hollandsworth
Presentations
No abstract provided.
Evaluating Controlled Substance Documentation In An Electronic Medical Record, Delora Brooks
Evaluating Controlled Substance Documentation In An Electronic Medical Record, Delora Brooks
Dissertations
The Centers for Disease Control and Prevention (CDC) directives issued in 2016 gave guidelines for safely prescribing opiates; however, primary source discussions about methods used for documenting opioid and controlled substance monitoring within an electronic medical record (EMR) are limited (Hussain, Nelson, Polston & Zheng, 2019). This leaves individual providers to determine the appropriate way to document. Inconsistent documentation may not protect providers or organizations from regulatory, civil or criminal liability. As stated by Raveesh, Nayak & Kumbar (2016), “The best way to handle medico-legal issues is by preventing them”. Even with the advent and widespread use of EMRs, documentation …
Volume Cxxxvii, Number 8, November 8, 2019, Lawrence University
Volume Cxxxvii, Number 8, November 8, 2019, Lawrence University
The Lawrentian
No abstract provided.
Essays Of The Visual Effects On Online Human Decision-Making And Data Science Applications, Jian-Ren Hou
Essays Of The Visual Effects On Online Human Decision-Making And Data Science Applications, Jian-Ren Hou
Information Systems & Operations Management Dissertations - Archive
How human makes decisions online is an important research area in IS, many different techniques and online scenarios are used to probe into the related issues. In the first essay, this study investigates the crowdfunding platform. This study uses a deep neural network to extract the emotion metrics from the project images on the crowdfunding platform. The result shows that emotions in project images such as sadness and contentment can positively affect the performance of crowdfunding projects. This study also provides possible designs to change the emotions in the project images. In the second essay, this study investigates how to …
Daily Eastern News: November 08, 2019, Eastern Illinois University
Daily Eastern News: November 08, 2019, Eastern Illinois University
November
No abstract provided.
Lindenwood University Sponsors Junior Achievement's Biztown Program, Lindenwood University
Lindenwood University Sponsors Junior Achievement's Biztown Program, Lindenwood University
Archived Lindenwood Press Releases
No abstract provided.
Ud In The News Nov. 2-8, University Of Dayton
Ud In The News Nov. 2-8, University Of Dayton
News Releases
The Atlantic, The Conversation, Religion News Service, National Catholic Reporter and The Huffington Post featured University of Dayton faculty and staff in stories the first week of November.
This Is Me: Anxiety And Depression Awareness Event, Stephanie Cotrone
This Is Me: Anxiety And Depression Awareness Event, Stephanie Cotrone
Honors Projects
College and life are stressful, but they don't have to be. We've all been in that place where it feels like life is caving in and there's nowhere else to turn, but it does get better. This event brings awareness to mental illnesses common on college campuses and in the community. There will be engaging and interactive activities to learn about anxiety & depression, and healthy ways to cope through music, art, theatre, amusement parks, learning, reading, and more. Performances by the Humanities Troupe and testimonies by current students who have had experience dealing with mental illness before or who …
Lindenwood Digest, November 8, 2019, Lindenwood University
Lindenwood Digest, November 8, 2019, Lindenwood University
Lindenwood Digest
The Lindenwood Digest has been a digital employee newsletter since 2009.
Uab Fights Food Insecurity With Global, Local Efforts Nov. 11 And 14, Shannon Thomason
Uab Fights Food Insecurity With Global, Local Efforts Nov. 11 And 14, Shannon Thomason
Browse All News
No abstract provided.
Early Anthropoid Femora Reveal Divergent Adaptive Trajectories In Catarrhine Hind-Limb Evolution, Sergio Almecija, Melissa Tallman, Hesham M. Sallam, John G. Fleagle, Ashley S. Hammond, Erik R. Seiffert
Early Anthropoid Femora Reveal Divergent Adaptive Trajectories In Catarrhine Hind-Limb Evolution, Sergio Almecija, Melissa Tallman, Hesham M. Sallam, John G. Fleagle, Ashley S. Hammond, Erik R. Seiffert
Peer Reviewed Articles
The divergence of crown catarrhines—i.e., the split of cercopithecoids (Old World monkeys) from hominoids (apes and humans)—is a poorly understood phase in our shared evolutionary history with other primates. The two groups differ in the anatomy of the hip joint, a pattern that has been linked to their locomotor strategies: relatively restricted motion in cercopithecoids vs. more eclectic movements in hominoids. Here we take advantage of the first well-preserved proximal femur of the early Oligocene stem catarrhine Aegyptopithecus to investigate the evolution of this anatomical region using 3D morphometric and phylogenetically-informed evolutionary analyses. Our analyses reveal that cercopithecoids and hominoids …
Best Women’S Soccer Team In The World Names Ohio Alumnus Vlatko Andonovski Head Coach (November 8, 2019), University Communications And Marketing
Best Women’S Soccer Team In The World Names Ohio Alumnus Vlatko Andonovski Head Coach (November 8, 2019), University Communications And Marketing
OHIO News Articles Archive
No abstract provided.
Entrepreneurship Grad Blazes Trail In Fast-Growing Esports Industry (November 8, 2019), University Communications And Marketing
Entrepreneurship Grad Blazes Trail In Fast-Growing Esports Industry (November 8, 2019), University Communications And Marketing
OHIO News Articles Archive
No abstract provided.
The Quiet Undoing: How Regional Electricity Market Reforms Threaten Clean Energy Goals, Shelley Welton, Danny Cullenward
The Quiet Undoing: How Regional Electricity Market Reforms Threaten Clean Energy Goals, Shelley Welton, Danny Cullenward
Faculty Publications
In a series of largely unnoticed but extremely consequential moves, two regional electricity market operators are pursuing reforms to make it more difficult for states to achieve their clean energy goals. The federal energy regulator, FERC, has already approved one such reform and ordered a second market operator to go farther in punishing state-supported clean energy resources than it had initially proposed. In this Essay, we bring to light the ways in which the intricate, technical reforms underway in regional electricity markets threaten state climate change objectives and the durability of FERC’s regional market constructs. If FERC allows private market …
The Echo: November 8, 2019, Taylor University
The Echo: November 8, 2019, Taylor University
2019-2020 (Volume 107)
Dungy shares stories of faith – OVC talks orphanages – Celebrating Austin – PAs and DAs foster intentional community – Coffee Shop Series: Monthly Grind – A troupe to call his own: community within theatre – The Bridge’s Autumn Market brings in vendors – Students go wild for jungle jams at Taylor’s MyGen 2019 – fit Friday – CARE Conference desires change – foody fix – The Weekly Bachelor and Bachelorette – Animals Crossword -- #TaylorU’s Top Tweets – Students compete in a war of parallel worlds – Students engage with Latino culture through dancing – Fantasy and horror themes …