Biological and Physical Anthropology Commons^™

Analysis And Observation Of Decomposition Of Immature Pigs In The Minnesota Winter/Early Spring, Rachael Herbes

All Graduate Theses, Dissertations, and Other Capstone Projects

This study analyzes the multiple factors affecting the decomposition of pigs in the Minnesota Winter/Early Spring within the first twelve weeks postmortem. The winters in the Minnesota River Valley can vary in regard to weather patterns and temperature changes. Adding the variable of location and accessibility to the study creates a mix of important research conducted in a less populated area. Pig carcasses were used in lieu of human remains to allow the data to be as close to a real scenario as possible. One pig was placed next to a farm site and the other about a half of …

Meta-Analysis Of Scent Detection Canines And Potential Factors Influencing Their Success Rates, Molly Marie Jaskinia

Graduate Student Theses, Dissertations, & Professional Papers

Objective: This is a meta-analysis focused on the success rates of scent detection canines and potential factors that could influence their accuracy. A series of statistical analyses were conducted to determine if certain demographic factors, such as the dog’s gender, age, and breed, have an effect on a scent dog’s accuracy during a search. Or if more circumstantial factors, like the dog’s level of experience in scent work, the type of target scent, and their handler’s awareness of the target’s location, affect the outcome of the search.

Materials and Methods: A dataset was created from 37 different articles consisting of …

Y-Chromosome Dna Extraction From Post-Cranial Skeletal Elements, Mykala D. Ward

Graduate Student Theses, Dissertations, & Professional Papers

The use of DNA in forensic science has become an integral tool for victim and perpetrator identifications, missing person’s cases, paternity testing, etc. A major use of DNA is in the identification of unknown deceased individuals. With a reported number of individuals well over 8,000 in the United States, improved methods to accurately collect and analyze DNA from modern human bone are needed.

This project took the preliminary steps to improve DNA sampling and extraction methods by analyzing the Y-chromosome DNA yield from the two bone types. While both types are composed of the same materials, cortical bone is the …

Detecting Gsr Indicative Particles On Decayed Bones Using A Novel Field Kit, Sven Engling

Student Theses

Decomposed human remains are complex forensic puzzles, escalating in difficulty as the remains’ age obscures evidence, like trauma. Research has shown that scanning electron microscopes with energy dispersive X-ray spectrometers (SEM-EDX) are capable of detecting and identifying gunshot residue (GSR) particles on bones. However, SEM-EDX work is time consuming, expensive, and not accessible to every forensic department. Therefore, a preliminary field test capable of detecting GSR indicative particles, like lead, could save departments money and assist in trauma identification. This study examines the viability of using either the 3M Lead Check Test swabs or a sodium rhodizonate solution as part …

Archaeology Or Crime Scene? Teeth Micro And Macro Structure Analysis As Dating Variable, Jessica A. Vincenty

Student Theses

Simple methods to aid in the determination of forensic or archaeologic relevancy of skeletonized remains have been researched since the 1950s. With advances in microscopic imaging techniques and machine learning computer data analysis methods the relevancy of decontextualized, comingled remains has room for improvement. This thesis is a study done to pioneer a new approach to analyzing dental skeletal remains to determine forensic relevancy.

Archaeological dental samples collected from the ancient city of Ur in modern day southern Iraq in addition to modern dental extractions were processed for scanning electron microscopy imaging. Archaeological and modern samples displayed different surface and …

A Forensic Investigation Into The Possible Origins Of Three Human Skeletons, Jefferson P. Sinnott

Forensic Science Theses

The Anthropology Department at Buffalo State has three human skeletons that have been part of the department’s collection for several years. The origin of the skeletons is currently unknown. Modern DNA techniques coupled with forensic anthropological techniques may now allow us to determine with some certainty the geographic origin of the skeletons. Ancestry, sex, age, and stature were assessed using current anthropological techniques. Afterwards, one tooth from each of the three skeletons was extracted, pulverized and DNA was isolated. Y-STR fragment size analysis of the DNA samples can provide information about the patrilineage of male individuals. Mitochondrial DNA sequencing analysis …

Multiple Stain Histology Of Skeletal Fractures: Healing And Microtaphonomy, John Wellington Powell

USF Tampa Graduate Theses and Dissertations

The forensic examination of wounds is one of the key elements of analysis performed by forensic anthropologists and forensic pathologists. Gross examination and histological analysis can be used to determine the timing of the wound and its cause. While forensic pathologists are trained to analyze hard and soft tissue wounds, forensic anthropologists, bioarchaeologists, and paleopathologists, focus on hard tissue. Forensic anthropologists have the added benefit of potentially working with residual soft tissue and would benefit from the incorporation of microscopy techniques that take advantage of the soft tissue to better understand perimortem events. Little research has been published that examines …