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University of Nebraska - Lincoln

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Articles 1 - 30 of 19043

Full-Text Articles in Physical Sciences and Mathematics

Development Of A Land Cover Characteristics Data Base For The Conterminous U.S., Thomas R. Loveland, James W. Merchant, Donald O. Ohlen, Jesslyn F. Brown Jan 9999

Development Of A Land Cover Characteristics Data Base For The Conterminous U.S., Thomas R. Loveland, James W. Merchant, Donald O. Ohlen, Jesslyn F. Brown

Conservation and Survey Division

No abstract provided.


Branched Oak Lake State Recreation Area Jan 9999

Branched Oak Lake State Recreation Area

Conservation and Survey Division

No abstract provided.


Transmissivity Of The Principal Aquifer In Nebraska Jan 9999

Transmissivity Of The Principal Aquifer In Nebraska

Conservation and Survey Division

No abstract provided.


Nebraska Map Of Counties, Conservation Survey Division Jan 9999

Nebraska Map Of Counties, Conservation Survey Division

Conservation and Survey Division

No abstract provided.


Nebraska Groundwater In Storage, Conservation Survey Division Jan 9999

Nebraska Groundwater In Storage, Conservation Survey Division

Conservation and Survey Division

No abstract provided.


Nebraska Natural Resources District Boundaries, Nebraska Natural Resources Commission Jan 9999

Nebraska Natural Resources District Boundaries, Nebraska Natural Resources Commission

Conservation and Survey Division

No abstract provided.


Distribution And Thickness Of Glacial Till In Nebraska. Jan 9999

Distribution And Thickness Of Glacial Till In Nebraska.

Conservation and Survey Division

No abstract provided.


Nebraska Natural Resource District Boundaries Jan 9999

Nebraska Natural Resource District Boundaries

Conservation and Survey Division

No abstract provided.


Statewide Precipitation And Discharge Of Platte River Above Ashland, Bryce B. Pease Jan 9999

Statewide Precipitation And Discharge Of Platte River Above Ashland, Bryce B. Pease

Conservation and Survey Division

No abstract provided.


Precambrian Rock Descriptions From Deep Wells In Nebraska, E. Liedecke Jan 9999

Precambrian Rock Descriptions From Deep Wells In Nebraska, E. Liedecke

Conservation and Survey Division

No abstract provided.


Dissolved Solids Sampling Sites And Zones Of Concentration Jan 9999

Dissolved Solids Sampling Sites And Zones Of Concentration

Conservation and Survey Division

No abstract provided.


Groundwater Regions In Nebraska Jan 9999

Groundwater Regions In Nebraska

Conservation and Survey Division

No abstract provided.


Nebraska County Map Jan 9999

Nebraska County Map

Conservation and Survey Division

No abstract provided.


Generalized Soil Map Of Nebraska Jan 9999

Generalized Soil Map Of Nebraska

Conservation and Survey Division

No abstract provided.


Topographic Regions Of Nebraska, G. E. Condra Jan 9999

Topographic Regions Of Nebraska, G. E. Condra

Conservation and Survey Division

No abstract provided.


Areas In Nebraska Of Subirrigated Vegetation, John Elder Jan 9999

Areas In Nebraska Of Subirrigated Vegetation, John Elder

Conservation and Survey Division

No abstract provided.


Irrigation Water Diagram Jan 9999

Irrigation Water Diagram

Conservation and Survey Division

No abstract provided.


Generalized Classification Of Economic Minerals Jan 9999

Generalized Classification Of Economic Minerals

Conservation and Survey Division

No abstract provided.


Metric System Vs. Inch-Pound Units Jan 9999

Metric System Vs. Inch-Pound Units

Conservation and Survey Division

No abstract provided.


Holdrege: Nebraska's State Soil Jan 9999

Holdrege: Nebraska's State Soil

Conservation and Survey Division

No abstract provided.


Report Of The Nebraska Conservation And Soil Survey, G. E. Condra Jan 9999

Report Of The Nebraska Conservation And Soil Survey, G. E. Condra

Conservation and Survey Division

No abstract provided.


Using An Integrative Machine Learning Approach To Study Microrna Regulation Networks In Pancreatic Cancer Progression, Roland Madadjim May 2021

Using An Integrative Machine Learning Approach To Study Microrna Regulation Networks In Pancreatic Cancer Progression, Roland Madadjim

Computer Science and Engineering: Theses, Dissertations, and Student Research

With advances in genomic discovery tools, recent biomedical research has produced a massive amount of genomic data on post-transcriptional regulations related to various transcript factors, microRNAs, lncRNAs, epigenetic modifications, and genetic variations. In this direction, the field of gene regulation network inference is created and aims to understand the interactome regulations between these molecules (e.g., gene-gene, miRNA-gene) that take place to build models able to capture behavioral changes in biological systems. A question of interest arises in integrating such molecules to build a network while treating each specie in its uniqueness. Given the dynamic changes of interactome in chaotic ...


Analysis Of Students’ Multi-Representation Ability In Augmented Reality-Assisted Learning, Sri Jumini, Edy Cahyono, Muhamad Miftakhul Falah May 2021

Analysis Of Students’ Multi-Representation Ability In Augmented Reality-Assisted Learning, Sri Jumini, Edy Cahyono, Muhamad Miftakhul Falah

Library Philosophy and Practice (e-journal)

Not all learning sources can directly and cheaply be presented, so augmented reality media is needed to be applied to students with various talents and intelligence. This study aims to analyze students’ multi-representation ability through the use of augmented reality media. The research method was carried out through pre-experiment with one group posttest only design. Test question items were given to see the students’ multi-representation ability. Data analysis was carried out through the percentage of the number of students achieving test scores of more than or equal to 80 on a scale of 100. The results showed that 88% (28 ...


Spirals And Skyrmions In Antiferromagnetic Triangular Lattices, Wuzhang Fang, Aldo Raeliarijaona, Po-Hao Chang, Alexey Kovalev, Kirill Belashchenko May 2021

Spirals And Skyrmions In Antiferromagnetic Triangular Lattices, Wuzhang Fang, Aldo Raeliarijaona, Po-Hao Chang, Alexey Kovalev, Kirill Belashchenko

Faculty Publications, Department of Physics and Astronomy

We study realizations of spirals and skyrmions in two-dimensional antiferromagnets with a triangular lattice on an inversion-symmetry-breaking substrate. As a possible material realization, we investigate the adsorption of transition-metal atoms (Cr, Mn, Fe, or Co) on a monolayer of MoS2, WS2, or WSe2 and obtain the exchange, anisotropy, and Dzyaloshinskii-Moriya interaction parameters using first-principles calculations. Using energy minimization and parallel-tempering Monte Carlo simulations, we determine the magnetic phase diagrams for a wide range of interaction parameters. We find that skyrmion lattices can appear even with weak Dzyaloshinskii-Moriya interactions, but their stability is hindered by magnetic anisotropy. However, a weak easy ...


Teachability And Interpretability In Reinforcement Learning, Jeevan Rajagopal May 2021

Teachability And Interpretability In Reinforcement Learning, Jeevan Rajagopal

Computer Science and Engineering: Theses, Dissertations, and Student Research

There have been many recent advancements in the field of reinforcement learning, starting from the Deep Q Network playing various Atari 2600 games all the way to Google Deempind's Alphastar playing competitively in the game StarCraft. However, as the field challenges more complex environments, the current methods of training models and understanding their decision making become less effective. Currently, the problem is partially dealt with by simply adding more resources, but the need for a better solution remains.

This thesis proposes a reinforcement learning framework where a teacher or entity with domain knowledge of the task to complete can ...


Groundwater Education: An Investigation Of Students' Use Of A Groundwater Modeling Tool, Holly White May 2021

Groundwater Education: An Investigation Of Students' Use Of A Groundwater Modeling Tool, Holly White

Dissertations & Theses in Natural Resources

Groundwater is a critical resource for life on Earth. However, our groundwater resources are at risk due to human activities, making this a topic of importance within K-12 and undergraduate environmental education. Yet, students hold alternative conceptions and may have limited awareness about groundwater systems. One way to support students’ learning is by incorporating computer-based modeling tools into classrooms. Here, we explore the use a groundwater modeling tool, the Hydrogeology Challenge (HGC), among two age groups of students: seventh grade students and undergraduate students. In the seventh-grade population, we investigated how students relate or map model components to their real-world ...


Conceptual Framework Linking Resource Size And Recreational Use, Derek Kane May 2021

Conceptual Framework Linking Resource Size And Recreational Use, Derek Kane

Dissertations & Theses in Natural Resources

Participation in recreational activities at natural resource systems is important to many people. However, the use of these resource systems can cause negative social and ecological impacts. To manage the potential negative impacts of resource use, natural resource managers must have the ability to quantify and monitor the amount of use that is occurring. Unfortunately, it is difficult and costly to quantify and monitor resource system use. Natural resource management would benefit from uncovering a simple, easily accessible metric that could predict resource system use. The size of a resource system is related to social and ecological aspects of the ...


Museum Exploration Club, Celeste Kenworthy, Aurora Kenworthy May 2021

Museum Exploration Club, Celeste Kenworthy, Aurora Kenworthy

Honors Expanded Learning Clubs

Afterschool club that virtually visits museums in order to help students gain an appreciation for museums and learn about concepts related to art, history, and science.


Surface Functionalization Of Elastomers For Tunable Crystal Growth And Smart Adhesives, John Kapitan Apr 2021

Surface Functionalization Of Elastomers For Tunable Crystal Growth And Smart Adhesives, John Kapitan

Student Research Projects, Dissertations, and Theses - Chemistry Department

Silicone rubbers have seen extensive work on modulation of their surface environments for use in microfluidics, cell adhesion, and sensing. Most surface procedures utilize a common initial step of oxidation of the surface to increase the number of active surface functional groups. Following oxidation more permanent functionalities can be imparted on the surface using silanization, grafting polymer brushes, or creating ionic bonds to the surface. Of these three, silanization proves to be the most pervasive due to the range of procedures available and how easy the procedures prove to be. However, the mechanism by which silanization is performed heavily involves ...


Analysis Of Winter Weather Conditions And Their Relationship To Crashes In Nebraska, John Cecava Apr 2021

Analysis Of Winter Weather Conditions And Their Relationship To Crashes In Nebraska, John Cecava

Dissertations & Theses in Earth and Atmospheric Sciences

Adverse weather conditions: such as changes in visibility, precipitation, wind speed, temperature, and road surface conditions, substantially impact highway and interstate safety. Therefore, an investigation into the winter weather conditions during highway and interstate crashes in Nebraska was conducted. Crash data were obtained from the Nebraska Department of Transportation (NDOT) for the years 2008 to 2018. In order to separate the non-winter weather related crashes and the winter weather related crashes, six filtrations were applied to make this possible. These filters were based on a few crash parameters: road classification, alcohol, and crash severity, and weather parameters within the crash ...