Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 10 of 10

Full-Text Articles in Life Sciences

Who Needs Data? I’Ve Got Experience!, Dawnie Wolfe Steadman Nov 2018

Who Needs Data? I’Ve Got Experience!, Dawnie Wolfe Steadman

Human Biology Open Access Pre-Prints

.


New Approaches To Juvenile Age Estimation In Forensics: Application Of Transition Analysis Via The Shackelford Et Al. Method To A Diverse Modern Subadult Sample, Kelly R. Kamnikar, Nicholas P. Herrmann, Amber M. Plemons Nov 2018

New Approaches To Juvenile Age Estimation In Forensics: Application Of Transition Analysis Via The Shackelford Et Al. Method To A Diverse Modern Subadult Sample, Kelly R. Kamnikar, Nicholas P. Herrmann, Amber M. Plemons

Human Biology Open Access Pre-Prints

Dental development is one of the most widely utilized and accurate methods available for estimating age in subadult skeletal remains. The timing of tooth growth and development is regulated by genetics and less affected by external factors, allowing reliable estimates of chronological age. Traditional methodology focuses on comparing tooth developmental scores to corresponding age charts. Using the Moorrees, Fanning, and Hunt (MFH) developmental scores, Shackelford and colleagues embed the dental development method in a statistical framework based on transition analysis. They generated numerical parameters underlining each “stage” and age-at-death distribution and applied them to fossil hominins and Neanderthals with limited …


Thinking Computationally About Forensics: Anthropological Perspectives On Advancements In Technologies, Data, And Algorithms, Bridget F.B. Algee-Hewitt, Jieun Kim, Cris E. Hughes Nov 2018

Thinking Computationally About Forensics: Anthropological Perspectives On Advancements In Technologies, Data, And Algorithms, Bridget F.B. Algee-Hewitt, Jieun Kim, Cris E. Hughes

Human Biology Open Access Pre-Prints

.


Using Social Media To Assess The Consumer Nutrition Environment: Comparing Yelp Reviews With A Direct Observation Audit Instrument For Grocery Stores, Ying Shen, Philippa Clarke, Iris N. Gomez-Lopez, Alex B. Hill, Daniel M. Romero, Robert Goodspeed, Veronica J. Berrocal, Vg Vinod Vydiswaran, Tiffany C. Veinot Nov 2018

Using Social Media To Assess The Consumer Nutrition Environment: Comparing Yelp Reviews With A Direct Observation Audit Instrument For Grocery Stores, Ying Shen, Philippa Clarke, Iris N. Gomez-Lopez, Alex B. Hill, Daniel M. Romero, Robert Goodspeed, Veronica J. Berrocal, Vg Vinod Vydiswaran, Tiffany C. Veinot

Urban Studies and Planning Faculty Research Publications

Objective
To examine the feasibility of using social media to assess the consumer nutrition environment by comparing sentiment expressed in Yelp reviews with information obtained from a direct observation audit instrument for grocery stores.

Design
Trained raters used the Nutrition Environment Measures Survey in Stores (NEMS-S) in 100 grocery stores from July 2015 to March 2016. Yelp reviews were available for sixty-nine of these stores and were retrieved in February 2017 using the Yelp Application Program Interface. A sentiment analysis was conducted to quantify the perceptions of the consumer nutrition environment in the review text. Pearson correlation coefficients (ρ) were …


Open-Source Tools For Dense Facial Tissue Depth Mapping (Ftdm) Of Computed Tomography Models, Terrie Simmons-Ehrhardt, Catyana Falsetti, Anthony B. Falsetti, Christopher J. Ehrhardt Aug 2018

Open-Source Tools For Dense Facial Tissue Depth Mapping (Ftdm) Of Computed Tomography Models, Terrie Simmons-Ehrhardt, Catyana Falsetti, Anthony B. Falsetti, Christopher J. Ehrhardt

Human Biology Open Access Pre-Prints

Computed tomography (CT) scans provide anthropologists with a resource to generate three- dimensional (3D) digital skeletal material to expand quantification methods and build more standardized reference collections. The ability to visualize and manipulate the bone and skin of the face simultaneously in a 3D digital environment introduces a new way for forensic facial approximation practitioners to access and study the face. Craniofacial relationships can be quantified with landmarks or with surface processing software that can quantify the geometric properties of the entire 3D facial surface. This paper describes tools for the generation of dense facial tissue depth maps (FTDMs) using …


Of Typicality And Predictive Distributions In Discriminant Function Analysis, Lyle W. Konigsberg, Susan R. Frankenberg Aug 2018

Of Typicality And Predictive Distributions In Discriminant Function Analysis, Lyle W. Konigsberg, Susan R. Frankenberg

Human Biology Open Access Pre-Prints

While discriminant function analysis is an inherently Bayesian method, researchers attempting to estimate ancestry in human skeletal samples often follow discriminant function analysis with the calculation of frequentist-based typicalities for assigning group membership. Such an approach is problematic in that it fails to account for admixture and for variation in why individuals may be classified as outliers, or non-members of particular groups. This paper presents an argument and methodology for employing a fully Bayesian approach in discriminant function analysis applied to cases of ancestry estimation. The approach requires adding the calculation, or estimation, of predictive distributions as the final step …


Digital Tools For Managing Different Steps Of The Systematic Review Process, Wendy Wu, Katherine Akers, Ella Hu, Alexandra Sarkozy, Patricia Vinson May 2018

Digital Tools For Managing Different Steps Of The Systematic Review Process, Wendy Wu, Katherine Akers, Ella Hu, Alexandra Sarkozy, Patricia Vinson

Library Scholarly Publications

Performing systematic reviews (SR) and meta-analyses is an arduous and time-consuming process that involves not only comprehensive literature searching but also record de-duplication, title/abstract and full-text screening, data extraction, quality assessment, statistical analysis, data visualization, report writing, and the creation of a bibliography. In the past several years, several digital tools and software have become available to facilitate different steps of the systematic review process. However, due to the growing number of tools, it can be difficult for systematic reviewers to make fully informed decisions about which tool(s) to use. Here, we (1) compile a comprehensive list of currently available …


The Flint Food Store Survey: Combining Spatial Analysis With A Modified Nutrition Environment Measures Survey In Stores (Nems-S) To Measure The Community And Consumer Nutrition Environments, Erika R. Shaver, Richard C. Sadler, Alex B. Hill, Kendall Bell, Myah Ray, Jennifer Choy-Shin, Joy Lerner, Teresa Soldner, Andrew D. Jones Jan 2018

The Flint Food Store Survey: Combining Spatial Analysis With A Modified Nutrition Environment Measures Survey In Stores (Nems-S) To Measure The Community And Consumer Nutrition Environments, Erika R. Shaver, Richard C. Sadler, Alex B. Hill, Kendall Bell, Myah Ray, Jennifer Choy-Shin, Joy Lerner, Teresa Soldner, Andrew D. Jones

Urban Studies and Planning Faculty Research Publications

Objective
The goal of the present study was to use a methodology that accurately and reliably describes the availability, price and quality of healthy foods at both the store and community levels using the Nutrition Environment Measures Survey in Stores (NEMS-S), to propose a spatial methodology for integrating these store and community data into measures for defining objective food access.

Setting
Two hundred and sixty-five retail food stores in and within 2 miles (3·2 km) of Flint, Michigan, USA, were mapped using ArcGIS mapping software.

Design
A survey based on the validated NEMS-S was conducted at each retail food store. …


Mitochondrial Dna Analysis Of Mazahua And Otomi Indigenous Populations From Estado De Mexico Suggests A Distant Common Ancestry, Angelica GonzáLez-Oliver, Ernesto Garfias-Morales, D G. Smith, Mirsha Quinto-Sánchez Jan 2018

Mitochondrial Dna Analysis Of Mazahua And Otomi Indigenous Populations From Estado De Mexico Suggests A Distant Common Ancestry, Angelica GonzáLez-Oliver, Ernesto Garfias-Morales, D G. Smith, Mirsha Quinto-Sánchez

Human Biology Open Access Pre-Prints

The indigenous Mazahua and Otomi have inhabited the same localities in Estado de Mexico since pre-Columbian times. Their languages, Mazahua and Otomi, belong to the Otomanguean linguistic family, and, while they share cultural traditions and a regional history that suggest close genetic relationships and common ancestry, the historical records concerning their origin are confusing. To understand the biological relationships between Mazahua and Otomi we analyzed the mitochondrial DNA (mtDNA) genetic variation. We identified the mtDNA haplogroups by restriction fragment length polymorphism typing and sequenced the hypervariable region I of the mtDNA control region in 141 Mazahua and 100 Otomi. These …


Evaluating Nubian Population Structure From Cranial Nonmetric Traits: Gene Flow, Genetic Drift, And Population History Of The Nubian Nile Valle, Kanya Godde, Richard L. Jantz Jan 2018

Evaluating Nubian Population Structure From Cranial Nonmetric Traits: Gene Flow, Genetic Drift, And Population History Of The Nubian Nile Valle, Kanya Godde, Richard L. Jantz

Human Biology Open Access Pre-Prints

Paleolithic archaeological and skeletal remains from the Nile Valley have yielded a complex picture of life along the river. Sociocultural and sociopolitical events during this timeframe shaped population structure, while gene flow and genetic drift further developed it. In this paper, we take a population genetics approach to modeling Nubian biological relationships in an effort to describe how an accumulation of events formed Nubian population structure. A variety of Nubian samples were utilized, spanning the Mesolithic-Christian time periods, and geographically, from just above the first through the third cataracts. Population genetics statistics were employed to estimate and depict biological affinities …