Physical Sciences and Mathematics Commons^™

Mgrre_Thinsections_Mgrre-09_8, Mgrre

Thin Sections

No abstract provided.

Mgrre_Thinsections_Mgrre-09_10, Mgrre

Thin Sections

No abstract provided.

Mgrre_Thinsections_Mgrre-10_3, Mgrre

Thin Sections

No abstract provided.

Mgrre_Thinsections_Mgrre-10_6, Mgrre

Thin Sections

No abstract provided.

Mgrre_Thinsections_Mgrre-10_7, Mgrre

Thin Sections

No abstract provided.

Playing Unbound: Towards A Radically Intersectional Hci, Johanna Brewer

Computer Science: Faculty Publications

This short essay is a call to action for digital games researchers to positively transform the future of HCI by meaningfully adopting an explicitly intersectional approach to our work as a scholarly community.

Mgrre_Thinsections_Mgrre-09_9, Mgrre

Thin Sections

No abstract provided.

Mgrre_Thinsections_Mgrre-09_11, Mgrre

Thin Sections

No abstract provided.

Mgrre_Thinsections_Mgrre-03_8, Mgrre

Thin Sections

No abstract provided.

Mgrre_Thinsections_Mgrre-03_5, Mgrre

Thin Sections

No abstract provided.

Threonine Phosphorylation Of An Electrochemical Peptide-Based Sensor To Achieve Improved Uranyl Ion Binding Affinity, Channing C. Thompson, Rebecca Lai

Chemistry Department: Faculty Publications

We have successfully designed a uranyl ion (U(VI)-specific peptide and used it in the fabrication of an electrochemical sensor. The 12-amino acid peptide sequence, (n) DKDGDGYIpTAAE (c), originates from calmodulin, a Ca(II)-binding protein, and contains a phosphothreonine that enhances the sequence’s affinity for U(VI) over Ca(II). The sensing mechanism of this U(VI) sensor is similar to other electrochemical peptide-based sensors, which relies on the change in the flexibility of the peptide probe upon interacting with the target. The sensor was systematically characterized using alternating current voltammetry (ACV) and cyclic voltammetry. Its limit of detection was 50 nM, which is lower …

Our Need For Seed: How News Media Framed The Pandemic Gardening Boom, Roger Gatchet, Amanda Davis Gatchet

Sustainability Research & Practice Seminar Presentations

Professor Roger Gatchet, Communication and Media, and Professor Amanda Davis Gatchet, Department of Communication Studies, Montgomery County Community College - Our Need for Seed: How News Media Framed the Pandemic Gardening Boom

Review Of Structural Color In The Genus Chrysochroa Dejean, 1833 (Coleoptera: Buprestidae), Able Chow

LSU Master's Theses

The jewel beetles, (Coleoptera: Buprestidae Leach, 1815), is the eighth most speciose coleopteran family, with the majority of its members possessing diverse bright, saturated structural coloration of multilayer origin. This study focuses on the genus Chrysochroa Dejean, 1833, which includes some of the most brilliantly and charismatically colored buprestid species. While members of Chrysochroa are prised by entomologists amateurs and professional and are well-represented in museum collections, the evolution and ecology of their structural color remain underexplored. Twenty-eight select taxa including exemplars from all 13 subgenera of Chrysochroa were investigated to provide an overview of the objective optical properties and …

Searches For Ultra-High-Energy Photons At The Pierre Auger Observatory, The Pierre Auger Collaboration, B. Fick, D. Nitz, I. Norwood, A. Puyleart, Et Al.

Michigan Tech Publications

No abstract provided.

Experimental Evidence That Shear Bands In Metallic Glasses Nucleate Like Cracks, Alan A. Long, Wendelin Wright, Xiaojun Gu, Anna Thackray, Mayisha Nakib, Jonathan T. Uhl, Karin A. Dahmen

Faculty Journal Articles

Highly time-resolved mechanical measurements, modeling, and simulations show that large shear bands in bulk metallic glasses nucleate in a manner similar to cracks. When small slips reach a nucleation size, the dynamics changes and the shear band rapidly grows to span the entire sample. Smaller nucleation sizes imply lower ductility. Ductility can be increased by increasing the nucleation size relative to the maximum (“cutoff”) shear band size at the upper edge of the power law scaling range of their size distribution. This can be achieved in three ways: (1) by increasing the nucleation size beyond this cutoff size of the …

Rmap Interior Schools Project, Liz Stacks

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Approved Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites Field Sampling Plan (Fsp) Package #7: Ur-01, Ur-12, Ur-03, Ur-04, Ur-15, And Ur-17, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Synthesis, Characterization And Cell Viability Of Novel Tripodal Amines, Kinsley Lupton

Honors College Theses

Cancer, over the years, has become a much more prevalent focus for the scientific community. Organizations and laboratories all over the world have spent countless hours searching for a cure, trying to learn more about what makes cancer so powerful and what is the best way to stop its growth. Iron-chelation drugs were already on the market, and it was shown that they did have the ability to act as both iron-chelators and anticancer drugs. Most of these iron-chelating drugs are not as effective at killing cancer cells as the medical field desires. Novel iron-chelating tris-indolyl derivatives, GSO2, GSO4 and …

Polarimetric Radar And Vhf Lightning Observations In A Significantly Tornadic Supercell, Jacob Bruss

The Journal of Purdue Undergraduate Research

No abstract provided.

Redefining Research In Nanotechnology Simulations: A New Approach To Data Caching And Analysis, Darin Tsai, Alan Zhang, Aloysius Rebeiro

The Journal of Purdue Undergraduate Research

No abstract provided.

Agricultural Aerosols: The Impact Of Farming Activity On Ice Nucleating Particles, Joseph Robinson

The Journal of Purdue Undergraduate Research

Farming activities cause particles such as soil dust and plant material to be emitted into the air. Some of these aerosols can become ice nucleating particles (INPs), serving as seeds for ice and mixed-phase clouds. While there have been ground-based studies of these particles in the western Great Plains and a single air-based study in Indiana, there is a distinct lack of ground-based studies in the Midwest. In Indiana, over two-thirds of the state is farmland, with over 75% of land in Tippecanoe County used for agriculture. Despite farming being such an essential part of life in Indiana, the connection …

Processing Of Plastic Film From Potato Starch: Effect Of Drying Methods, Kourtney Collier, Samantha Goins, Austin Chirgwin, Isabelle Stanfield

The Journal of Purdue Undergraduate Research

Starch-based plastics are biodegradable, compostable compounds made of starch and plasticizers from natural sources. Their fabrication involves the starch-plasticizer reaction at 70–100°C followed by cooling and drying. Th e most common drying method is air drying (natural convection), which is effective but slow. Th e objective of this work is to study the effect of fast drying (forced convection) on the quality of the plastic film. Th is work compares the effects of drying conditions and drying rate on warpage, shrinkage rate, and presence of bubbles. Five drying methods are studied: (1) natural convection with uncovered petri dish, (2) natural …

Supporting The Protect Initiative, Josh Lefton, Jackson Murray, Ahmed Thabet, Sriram Baireddy, Prakash Shukla, Mridul Gupta, Reagan Becker, Julie Ertle, Tony Doan, Aerin Yang

Purdue Journal of Service-Learning and International Engagement

Recently, medication dosage errors have received more political and media attention. Dosage errors are the most common medical errors, affecting about 1.5 million people annually.

Furthermore, U.S. poison-control centers reported more than 200,000 cases per year of medication errors. These cases result in medical costs of around $3.5 billion, and children under 6 years old constitute approximately 30% of these cases.

The PROTECT Initiative (Preventing Overdoses and Treatment Errors in Children Taskforce) was launched in 2008 as a collaborative effort between public health agencies and patient advocates to minimize dosage errors.

In alignment with the PROTECT Initiative effort, this project …

Vitamin E Does Not Disturb Polyunsaturated Fatty Acid Lipid Domains, Mitchell Dipasquale, Michael H.L. Nguyen, Stuart R. Castillo, Isabelle J. Dib, Elizabeth G. Kelley, Drew Marquardt

Chemistry and Biochemistry Publications

The function of vitamin E in biomembranes remains a prominent topic of discussion. As its limitations as an antioxidant persist and novel functions are discovered, our understanding of the role of vitamin E becomes increasingly enigmatic. As a group of lipophilic molecules (tocopherols and tocotrienols), vitamin E has been shown to influence the properties of its host membrane, and a wealth of research has connected vitamin E to polyunsaturated fatty acid (PUFA) lipids. Here, we use contrast-matched small-angle neutron scattering and differential scanning calorimetry to integrate these fields by examining the influence of vitamin E on lipid domain stability in …

An Interactive Simulation And Visualization Tool For Conventional And Aberration-Corrected Transmission Electron Microscopy, Xingzhong Li

Nebraska Center for Materials and Nanoscience: Faculty Publications

Contrast transfer function (CTF) is a vital function in transmission electron microscopy (TEM). It expresses to what extent amplitudes converted from the phase changes of the diffracted waves contribute to the TEM image, including the effects of lens aberrations. Simulation is very helpful to understand the application of the function thoroughly. In this work, we develop the CTFscope as a component in the Landyne software suite, to calculate the CTF with temporal and spatial dumping envelopes for conventional TEM and to extend it to various aberrations (up to fifth order) for aberration-corrected (AC)- TEM. It also includes effects on the …

Covariance Matrices And Applications In Nuclear Data (Nuclear Data Physics), K. Manjunatha Prasad

Interdisciplinary Collection

The neutron-induced nuclear reaction cross sections are essential inputs in nuclear engineering applications, especially in fission and fusion reactors, medical and industrial applications, personnel dosimetry in addition to fundamental research in nuclear physics and astrophysics. Nuclear reaction cross-section is one of the most important measurable quantities in the field of nuclear and particle physics. Neutron cross section plays an important role in nuclear transmutation, nuclear reactions, radiation damage, and other phenomena. A few works done by our team related to this topic are listed below.

1. https://link.springer.com/article/10.1007/s10967-020-07303-5
2. https://link.springer.com/article/10.1007/s10967-020-07292-5
3. https://www.researchgate.net/publication/342242617_Measurement_of_92Mona89Zr_and_97Monp97Nb_reactions_at_the_neutron_energy_1352_MeV_with_covariance_analysis
4. https://www.researchgate.net/publication/328106603_Measurement_and_covariance_analysis_of_232Thn_2n231Th_reaction_cross_sections_at_the_effective_neutron_energies_of_897_and_1652_MeV
5. https://www.degruyter.com/document/doi/10.1515/ract-2018-2937/html

Graphs And Matrices, K. Manjunatha Prasad

Interdisciplinary Collection

Network Science is an emerging area of Mathematics & Statistics with applications in various branches of science. One of the important concepts used in the analysis of the network is the centrality measure, which is mainly used to identify the significance of the nodes or edges of the network. Depending on different concepts, several centrality measures can be seen in the literature. Recently our group is working on a few parameters associated with the network. The author has also worked on research problems related to graphs and the matrices associated with graphs.

Further reading:

1. http://comb-opt.azaruniv.ac.ir/article_14282.html
2. https://link.springer.com/article/10.1007/s40009-022-01149-z
3. https://www.researchgate.net/publication/309877127_ALGORITHM_FOR_IDENTIFYING_2_2-BIPARTITE_GRAPHS
4. https://www.researchgate.net/publication/290172535_SOME_MATRIX_EQUATIONS_OF_GRAPHS
5. https://www.researchgate.net/publication/235980644_Partition_of_a_graph_with_its_complete_subgraphs

Research Software Science: Expanding The Impact Of Research Software Engineering, Michael A. Heroux

Computer Science Faculty Publications

Software plays a central role in scientific discovery. Improving how we develop and use software for research can have both broad and deep impacts on a spectrum of challenges and opportunities society faces today. The emergence of the research software engineer (RSE) role correlates with the growing complexity of scientific challenges and the diversity of software team skills. In this article, research software science (RSS), an idea related to RSE and particularly suited to research software teams, is described. RSS promotes the use of scientific methodologies to explore and establish broadly applicable knowledge. Using RSS, we can pursue sustainable, repeatable, …

Synthesis And Characterization Of Nanocomposites For Environmental Remediation, Nethaji S

Technical Collection

My current work deals with the preparation and characterization of nanocomposites for effluent treatment applications. The expertise lies on the preparation of carbonaceous nanocomposites including graphitic materials. The prepared materials are characterized thoroughly by different methods like FE-SEM, TEM, FT-IR, XRD, VSM, surface area and porosity. The composite materials are used for the removal of conventional and emerging contaminants like antibiotics, pesticide residues, endocrine disruptors etc. In addition to the batch studies, fabrication of microcolumns to aid the scale-up of the process is also carried out. I have published 14 research publications with around 1000 citations and h-index of 11. …

Design Of Secure Communication Schemes To Provide Authentication And Integrity Among The Iot Devices, Vidya Rao Dr.

Technical Collection

The fast growth in Internet-of-Things (IoT) based applications, has increased the number of end-devices communicating over the Internet. The end devices are made with fewer resources and are low battery-powered. These resource-constrained devices are exposed to various security and privacy concerns over publicly available Internet communication. Thus, it becomes essential to provide lightweight security solutions to safeguard data and user privacy. Elliptic Curve Cryptography (ECC) can be used to generate the digital signature and also encrypt the data. The method can be evaluated on a real-time testbed deployed using Raspberry Pi3 devices and every message transmitted is subjected to ECC. …