Physical Sciences and Mathematics Commons^™

Fluorescent Surface Mapping Of Mastodon Tusk, Clare Laubenthal, Joshua Sebree

Mastodon Tusk Project Posters

The subject of study is a Mammut americanum (American Mastodon) tusk. The tusk is currently damaged and in need of repair. To better understand the tusk and the preservation materials previously used, fluorescence spectrometry was used to make a surface map of the tusk. This data will be useful to the conservationists as they plan the care and restoration of the tusk.

Energy-Dispersive X-Ray (Edx) Mapping Of Lead In Mastodon Tusk Using Sem, Nicholas Bonde, Katherine Plotzke

Mastodon Tusk Project Posters

The composition and location of lead within a prehistoric mastodon tusk was mapped using Energy Dispersive X-ray (EDX) spectroscopy analysis via a Scanning Electron Microscope (SEM). This analysis was intended to provide information on the distribution of lead throughout the tusk. Data collected from this analysis has provided insights into the sources of the lead.

An In Between Study: The Usage Of Cross-Sectional Sem And Raman Spectroscopy To Map The Surface Interfacing Of A Mastodon Tusk And Its Lacquers, Katherine Plotzke

Mastodon Tusk Project Posters

A microscopy study utilizing a DXR2 SmartRaman and Evex Mini-Scanning Electron Microscope (SEM) was done on the UNI Museum’s Mammut americanum (American Mastodon) tusk. A map of the surface interfacing was generated and provided information about the elemental composition and layer interconnectedness. Additionally, this project will also aid in the future restoration work on the tusk funded by the Roy J. Carver Charitable Trust.

What Is The Red Plaster In The Mastodon Tusk?, Tray Hickie

Mastodon Tusk Project Posters

During the first visit to the tusk, Dr. Sebree found the crack that had been filled with a strange plaster that was not known at the time.

After seeing the plaster glow from the small flashlight Dr. Sebree had with him, identifying this material seemed like an interesting project.

Due to the fact that the plaster’s makeup is unknown, but identifying the material it was made of, future attempts to restore and preserve the fossil can be done more safely in the event that the material is harmful

Initial x-ray analysis of the mastodon tusk revealed many unexpected surprises.

In …

Classification Of Tusk Layers By Means Of Raman Spectroscopy, Treasure Divis, Vaughn Koch

Mastodon Tusk Project Posters

The American Mastodon tusk was donated to the University of Northern Iowa, and Dr. J. Cable took the lead on preserving it for museum display at UNI. Dr. Cable’s notes stated that it would be possible to preserve the entire tusk, because the outside was “covered with a hard enamel-like substance”. Some notes were taken as to what materials were used to preserve the tusk early on, but their exact composition was not noted.

• Glazed and varnished between 1933 and 1960

• 1960 – canned patching plaster on chipping areas, glazing liquid (brown), two coats of varnish (satin finish …

Carbonization Studies On Mammut Americanum Tusk, Nina Jocic

Mastodon Tusk Project Posters

Many preservation attempts have been made on the tusk that the University of Northern Iowa acquired. Due to the poor preservation attempts a lot of damage has happened and has caused the tusk to be in a way of disrepair. The Carver grant is very keen on the future preservation of the tusk. The sublimation of nucleobases will be able to help guide the type of preservation methods used in order to preserve the nucleobases and possible DNA still in the tusk. The extraction of nucleobases will not only help with the future preservation of tusk but it will also …

Analysis Of Mammut Americanum Tusk For Asbestos, Madeline C. Roach, Joshua A. Sebree

Mastodon Tusk Project Posters

On September 23, 1933, a tusk was discovered in a gravel pit four miles south of Hampton, Iowa. After careful analysis, the tusk was determined to belong to a Mastodon americanus.1 The University of Northern Iowa museum records note that the tusk was patched with a prepared patching plaster in the 1960’s.2 In the United States at the time Alvar was the most commonly used consolidate to form a plaster. It was either mixed with acetone, alcohol and other solvents, or asbestos.3 The museum record notes indicate that the patching plaster was prepared in a can, like a spackling compound.2 …

Sem Topology Of Enamel, Tami Wallin

Mastodon Tusk Project Posters

The topology of the enamel is an important topic to study how, on a microscopic level, the surface of the tusk is rough or smooth so that the correct restoration material and method are applied to the tusk. The method of study to find this information will be the SEM; which with the back scattered electrons will tell me the topography and chemical composition on the surface of the mastodon tusk fragment that will be tested, shown in the image below. SEM has better spacial resolution than optical microscopes do with the measuring tool provided by the program and the …

Determination And Quantification Of Lead Content In Mammut Americanus Dentine Material By Anodic Stripping Voltammetry, Emma R. Shipley

Mastodon Tusk Project Posters

A 120,000-200,000 year old mastodon tusk of species Mammut americanus, recovered from Hampton, Iowa in 1933 (right) was tested for lead using a lead test from Home Depot.1 The lead test was returned positive, so Anodic Stripping Voltammetry (ASV) was undertaken to determine the concentration of lead in the dentine material of the tusk. The lead concentration is of interest because lead could affect both the health of the conservator and researchers and also inform about the diet of the mastodon. Tusk dentine material (left) functions similarly to human teeth, and studies have shown that 90% of lead in the …

Removal Of Varnish Layers Verifying With Uv-Vis Spectroscopy, Vaughn Koch, Treasure Divis

Mastodon Tusk Project Posters

According to the Roy J. Carver grant, one of the goals is to get the mastodon tusk back to its original state. The preservation methods have not been well documented, therefore determining what the best solvents to remove the different layers needs to be known. In order to do this, various solvents will be used and confirmed through UV-vis spectroscopy with a Diffuse Reflectance Accessory (DRA) attached. This will measure the percentage of light that gets reflected back towards the detector. The image to the left shows the various layers that have been used in preserving the tusk, including some …

Quantitative Evaluation Of Heavy Metals In The Mastodon Tusk Ivory By Atomic Absorption Spectroscopy, Dmytro V. Kravchuck, Linda L. Wilson

Mastodon Tusk Project Posters

One of the most important objects in the University of Northern Iowa Museum collection is the Mammut Americanum (American Mastodon) tusk, which was originally found in 1933 in a sand pit south of Hampton, Iowa. Since then, severe mechanical and chemical damage was done to the tusk in attempts of restoration and storage, as shown in Figure 1. In order to address these problems, the UNI Museum was awarded a Roy J. Carver Charitable Trust Grant to restore and preserve the American Mastodon tusk. The purpose of the project is quantitative determination of the heavy metal content in the core …

Sem/Edx Chemical Composition Map Of Mastodon Tusk, Juliana Herran

Mastodon Tusk Project Posters

The goal of this project was to study one of the rarest objects in the collection of the UNI museum dating to the Aftonian or Yarmouth age (around 120,000 to 200,000 years old).

The tusk is 11 feet, 7.5 inches with a circumference at the proximal end of 2 feet, 2 inches.

There have been previous attempts of restoration of this tusk but there are not specific procedures on record that specify the materials or methods used during the restoration attempts with sufficient detail.

With the support of the Carver Grant awarded to the UNI museum, research teams containing students …

Nucleobase Sublimation On Mammut Americanum Tusk Fragments, Joshua Prybil

Mastodon Tusk Project Posters

Many preservation attempts have been made on the tusk that the University of Northern Iowa acquired. Due to the poor preservation attempts a lot of damage has happened and has caused the tusk to be in a way of disrepair. The Carver grant is very keen on the future preservation of the tusk. The sublimation of nucleobases will be able to help guide the type of preservation methods used in order to preserve the nucleobases and possible DNA still in the tusk. The extraction of nucleobases will not only help with the future preservation of tusk but it will also …

Computational Chemical Biology: From Atomistic Insights Towards Drug Design, Christo Christov

TechTalks

No abstract provided.

The Periodical Fall 2017, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 5, issue 1 of the Periodical includes articles about new assistant professor Nuvia Saucedo, student missions in Peru, forensic chemistry summer camp, and a pictorial listing of December 2017 graduates.

How To Be A Successful Organic Chemist, Alexander H. Sandtorv

PDXOpen: Open Educational Resources

How to be a successful organic chemist is meant as an introductory text for undergraduates taking organic chemistry teaching labs. The text is a clear and practical introduction to safety, chemical handling, organic chemistry techniques, and lab reports.

Adopt/Adapt
If you are an instructor adopting or adapting this PDXOpen textbook, please help us understand your use by filling out this form

Principles Of Chemistry I Lab (Clayton), Tatiana Krivosheev, Caroline Sheppard, Patricia Todebush, Bram Boroson, Justin Mays

Chemistry Grants Collections

This Grants Collection for Principles of Chemistry I was created under a Round Four ALG Textbook Transformation Grant.

Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.

Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials:

• Linked Syllabus
• Initial Proposal
• Final Report

Organic Chemistry I Lab (Clayton), Tatiana Krivosheev, Caroline Sheppard, Patricia Todebush, Bram Boroson, Justin Mays

Chemistry Grants Collections

This Grants Collection for Organic Chemistry I was created under a Round Four ALG Textbook Transformation Grant.

Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.

Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials:

• Linked Syllabus
• Initial Proposal
• Final Report

Organic Chemistry Ii Lab (Clayton), Tatiana Krivosheev, Caroline Sheppard, Patricia Todebush, Bram Boroson, Justin Mays

Chemistry Grants Collections

This Grants Collection for Organic Chemistry II was created under a Round Four ALG Textbook Transformation Grant.

Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.

Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials:

• Linked Syllabus
• Initial Proposal
• Final Report

Principles Of Chemistry Ii Lab (Clayton), Tatiana Krivosheev, Caroline Sheppard, Patricia Todebush, Bram Boroson, Justin Mays

Chemistry Grants Collections

This Grants Collection for Principles of Chemistry II was created under a Round Four ALG Textbook Transformation Grant.

Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.

Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials:

• Linked Syllabus
• Initial Proposal
• Final Report

Fluorescent Conjugated Polymers With A Bodipy-Based Backbone And Uses Thereof, Haiying Liu

Michigan Tech Patents

The present invention provides various fluorescent conjugated polymers with a BODIPY-based backbone. The invention also provides methods of using the polymers of the invention, such as for imaging and detection of cells, tumors, bacteria and viruses.

Characterization Of N-Polydentate Copper(Ii)-Alkylperoxo Complexes, Bruce Pella

Research Horizons Day Posters

No abstract provided.

Assessing The Efficacy Of Recommended Antiseptics For Killing Bacterial Growth In Neonatal Blue Bulb Syringes: Addressing A Clinical Issue, Linda A. Hanson

Research Horizons Day Posters

No abstract provided.

Investigation Of Hkust-1 And Related Composites With Protein Adsorption, Ramitha Rupasinghe

Undergraduate Research Symposium 2017

Metal Organic Frameworks (MOFs) possess well-ordered porous structures that have been shown to adsorb proteins. MOFs can be enhanced by combining them with suitable materials to make composites. Enhancements include, but are not limited to, changing pore sizes, adding functional groups, improving selectivity of adsorption, and increasing stability. Previous research has shown high adsorption of proteins by the MOF, HKUST-1 but no research has been done to investigate the adsorption by its related composites, such as HKUST-1/GO, HKUST-1/ magnetite and HKUST-1/magnetite/GO. In this research, HKUST-1 and composites based on graphene oxide (GO) and magnetite were synthesized, characterized by FTIR, XRD …

Multi-Scaled Approaches For Protecting Montana's Watersheds And Water Resources, Elizabeth Yoder

Graduate Student Portfolios, Professional Papers, and Capstone Projects

The central theme carried among my four portfolio pieces is: using scientific and governmental approaches to conserve watershed health. For the purposes of this portfolio, I define watershed health as a very general term that describes the state of water quantity and quality that is available for human and ecosystem needs in a watershed. I see each of my portfolio pieces focusing on a different scale and method (i.e., science or government, including different levels of government, local, state and federal) for conserving watershed health. My first portfolio piece reviews water quality degradation caused by pharmaceuticals and personal care products …

Understanding The Role Of Protein Misfolding In Neurodegenerative Diseases, Ashutosh Tiwari

TechTalks

Protein aggregates are hallmark of several age related disorders including neurodegenerative diseases such as Amyotrophic Lateral Sclerosis, Alzheimer’s and Parkinson’s disease. However, the underlying mechanisms by which these aggregated proteins impair cellular functions and cause toxicity is not clear. I will discuss efforts from my laboratory to characterize these misfolded and aggregated protein structures and their associated toxicity.

Designing Proteins For Biomechanical And Molecular Biological Studies, Momoko Tajiri

TechTalks

Proteins are large biomolecules consisting one or more long chain of amino acid residues. Proteins perform a wide variety of functions within organisms including catalyzing metabolic activities, signal transduction, and transportation of molecules. They function differently from one another as their sequences of amino acids and also due to a variation of modification placed on residues. Change in modification patterns will impact protein interaction with other molecules, thus influence normal cell activities and may lead to disease development. In order to study the consequences of modification, we have a method to prepare proteins with desired modification patterns. Using the technique, …

The Subject Librarian Newsletter, Chemistry, Spring 2017, Sandy Avila

Libraries' Newsletters

No abstract provided.

Removal Of Pharmaceuticals From Aqueous Solutions Using A1-Mg/Rgo Composite, Spencer Jones

Summer Community of Scholars Posters (RCEU and HCR Combined Programs)

No abstract provided.

The Periodical Winter 2017, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 4, issue 2 of the Periodical includes articles about the Chemistry Club's service activities, a student missions feature, student research at N.C. State, a pictorial directory of May 2017 graduates, and an alumni spotlight.