Digital Commons Network^™

Short Communication: Lack Of Support For Socially Connected Hiv-1 Transmission Among Young Adult Black Men Who Have Sex With Men, Kayo Fujimoto, Lyndon M. Coghill, Christopher A. Weier, Lu Yu Hwang, Ju Yeong Kim, John A. Schneider, Michael L. Metzker, Jeremy M. Brown

Faculty Publications

© Copyright 2017, Mary Ann Liebert, Inc. 2017. We explore the phylogenetic relationships among HIV sequences sampled from young adult black men who have sex with men (YAB-MSM), who are connected through peer referral/social ties and who attend common venues. Using 196 viral sequences sampled from the peripheral blood mononuclear cells of 10 individuals, our preliminary phylogenetic results indicate that these socially connected YAB-MSM are infected with distantly related viruses and provide no evidence for viral transmission between network members. Our results suggest that HIV-prevention strategies that target young adult MSM should extend beyond their network members and local community.

Dialect Variation Of Copula And Auxiliary Verb Be: African American English–Speaking Children With And Without Gullah/Geechee Heritage, Jessica R. Berry, Janna B. Oetting

Faculty Publications

Purpose: We compared copula and auxiliary verb BE use by African American English–speaking children with and without a creole heritage, using Gullah/Geechee as the creole criterion, to determine if differences exist, the nature of the differences, and the impact of the differences on interpretations of ability. Method: Data came from 38 children, aged 5 to 6 years (19 with Gullah/Geechee and 19 without Gullah/Geechee heritage). All were developing language typically, with groups matched on gender, maternal education, and, when possible, test scores. The children’s productions of BE were elicited using a screener, probes, and language samples. Results: Although many similarities …

Forecasting Us Army Enlistment Contract Production In Complex Geographical Marketing Areas, Joshua L. Mcdonald, Edward D. White, Raymond R. Hill, Christian Pardo

Faculty Publications

Purpose: The purpose of this paper is to demonstrate an improved method for forecasting the US Army recruiting. Design/methodology/approach: Time series methods, regression modeling, principle components and marketing research are included in this paper. Findings: This paper found the unique ability of multiple statistical methods applied to a forecasting context to consider the effects of inputs that are controlled to some degree by a decision maker. Research limitations/implications: This work will successfully inform the US Army recruiting leadership on how this improved methodology will improve their recruitment process.
Practical implications: Improved US Army analytical technique for forecasting recruiting goals.

Throwing Caution To The Wind: National Weather Service Wind Products As Perceived By A Weather-Salient Sample, Paul Miller

Faculty Publications

No abstract provided.

Building Research Skills In The Macalester Economics Major, J. Peter Ferderer, Gary Krueger

Faculty Publications

Economics majors at Macalester College have won numerous awards for their research papers, and this success has helped them land jobs in finance, consulting, and the nonprofit sector, as well as gain admission to top graduate programs. This article describes how the Economics Department at Macalester promotes economic research among its students.

Some Hispanic And Latino Landscapes Of New Orleans, Andrew Sluyter

Faculty Publications

No abstract provided.

Preservation Or Piracy: Diagnosing Low-Relief, High-Elevation Surface Formation Mechanisms, Kelin X. Whipple, Roman A. Dibiase, William B. Ouimet, Adam M. Forte

Faculty Publications

No abstract provided.

Lack Of Spatial Resilience In A Recovery Process: Case L'Aquila, Italy, Diana Contreras, Thomas Blaschke, Michael E. Hodgson

Faculty Publications

The lack of coordination between government agencies, involvement of the collaboration networks existing in the community, and incorporation of spatial planning in the location of the new settlements around L'Aquila (Italy) after the 2009 earthquake has delayed reconstruction of the city centre. The displaced population was relocated to 19 new settlements. These new settlements are characterized by a lack of urban facilities. The aim of this paper was to analyze the relationship between urban facilities, collaboration networks and lack of spatial resilience in the recovery process in L'Aquila. Specifically, we focused on the preferences of inhabitants to search for alternative …

The Potential Effects Of Percolating Snowmelt On Palynological Records From Firn And Glacier Ice, Michael E. Ewin, Carl A. Reese, Matthew A. Nolan

Faculty Publications

The effects of meltwater percolation on pollen in snow, firn and glacial ice are not fully understood and currently hamper the use of pollen in ice-core studies of paleoclimate. Several studies have suggested that, due to grain size, pollen is not mobilized by meltwater transport. However, these findings contradict many ice-core pollen studies that show pollen concentrations in snow and firn are much higher than concentrations found in the ice layers they eventually form. This study addresses one aspect of this question by investigating whether meltwater percolation can effectively transport pollen within a snowpack. We used nine Styrofoam coolers filled …

Mapping Typical Urban Lulc From Landsat Imagery Without Training Samples Or Self-Defined Parameters, Hui Li, Cuizhen Wang, Cheng Zhong, Zhi Zhang, Qingbin Liu

Faculty Publications

Land use/land cover (LULC) change is one of the most important indicators in understanding the interactions between humans and the environment. Traditionally, when LULC maps are produced yearly, most existing remote-sensing methods have to collect ground reference data annually, as the classifiers have to be trained individually in each corresponding year. This study presented a novel strategy to map LULC classes without training samples or assigning parameters. First of all, several novel indices were carefully selected from the index pool, which were able to highlight certain LULC very well. Following this, a common unsupervised classifier was employed to extract the …

Assessing The Viability Of Race-Neutral Alternatives In Law School Admissions, Eboni S. Nelson

Faculty Publications

No abstract provided.

Examining The Use Of Amazon's Mechanical Turk For Edge Extraction Of The Occlusal Surface Of Fossilized Bovid Teeth, Gregory J. Matthews, George K. Thiruvathukal, Maxwell P. Luetkemeier, Juliet K. Brophy

Faculty Publications

In order to reconstruct environments associated with Plio-Pleistocene hominins in southern Africa, researchers frequently rely upon the animals associated with the hominins, in particular, animals in the Family Bovidae. Bovids in southern Africa are typically identified by their teeth. However, identifying the taxon of a bovid tooth is challenging due to various biasing factors. Furthermore, inaccurate identification of fossil bovids can have significant consequences on the reconstructed paleoenvironment. Recent research on the classification of bovid fossil teeth has relied on using elliptical Fourier analysis to summarize the shape of the outline of the occlusal surface of the tooth and the …

Removal Of Women And African-Americans In Jury Selection In South Carolina Capital Cases, 1997- 2012, Ann M. Eisenberg

Faculty Publications

The Supreme Court’s May 2016 decision in Foster v. Chatman involved smoking-gun evidence that the State of Georgia discriminated against African-Americans in jury selection during Foster’s 1987 capital trial. Foster was decided on the thirtieth anniversary of Batson v. Kentucky, the first in the line of cases to prohibit striking prospective jurors on the basis of their race or gender. But the evidence of discrimination for Batson challenges is rarely so obvious and available as it was in Foster.

Where litigants have struggled to produce evidence of discrimination in individual cases, empirical studies have been able to assess jury selection …

Climatic And Glacial Impact On Erosion Patterns And Sediment Provenance In The Himalayan Rain Shadow, Zanskar River, Nw India, Tara N. Jonell, Andrew Carter, Philipp Böning, Katharina Pahnke, Peter D. Clift

Faculty Publications

© 2017 Geological Society of America. Erosion is a key step in the destruction and recycling of the continental crust, yet its primary drivers continue to be debated. The relative balance between climatic and solid Earth forces in determining erosion patterns and rates, and in turn orogenic architecture, is unresolved. The monsoon-dominated frontal Himalaya is a classic example of how surface processes may drive focused denudation and potentially control structural evolution. We investigate whether there is a clear relationship between climate and erosion in the drier Himalayan rain shadow on the periphery of the Tibetan Plateau, where a coupled climate-erosion …

Implications Of Synchronous Ivr Radio On Syrian Refugee Health And Community Dynamics, R. Talhouk, T. Bartindale, K. Montague, S. Mesmar, C. Akik, A. Ghassani, M. Najem, Hala Ghattas Ph.D., P. Olivier, M. Balaam

Faculty Publications

With 1,033,513 Syrian refugees adding a strain on the Lebanese healthcare system, innovation is key to improving access to healthcare. Our previous work identified the potential for technology to improve access to antenatal care services and increase refugee agency. Using (1) paper mock ups and a mobile based prototype, (2) process mapping, (3) focus groups and interviews and (4) key informant meetings, we explored the concept of refugee led community radio shows to deliver peerled healthcare.1We observed the influence of community radio shows on Syrian refugee health education, community dynamics and community agency in relationships between healthcare providers and refugees. …

The New Handshake: Where We Are Now, Amy J. Schmitz, Colin Rule

Faculty Publications

The internet has empowered consumers in new and exciting ways. It has opened more efficient avenues for consumers to buy just about anything. Want proof? Just pull out your smartphone, swipe your finger across the screen a few times, and presto – your collector’s edition Notorious RBG bobblehead is on its way from China. Unfortunately, however, the internet has not yet delivered on its promise to improve consumer protection.

Behavioural Response To Song And Genetic Divergence In Two Subspecies Of White-Crowned Sparrows (Zonotrichia Leucophrys), Sara E. Lipshutz, Isaac A. Overcast, Michael J. Hickerson, Robb T. Brumfield, Elizabeth P. Derryberry

Faculty Publications

© 2016 John Wiley & Sons Ltd Divergence in sexual signals may drive reproductive isolation between lineages, but behavioural barriers can weaken in contact zones. Here, we investigate the role of song as a behavioural and genetic barrier in a contact zone between two subspecies of white-crowned sparrows (Zonotrichia leucophrys). We employed a reduced genomic data set to assess population structure and infer the history underlying divergence, gene flow and hybridization. We also measured divergence in song and tested behavioural responses to song using playback experiments within and outside the contact zone. We found that the subspecies form distinct genetic …

The Characteristics Of Interpersonal Networks In Disaster Response*, Christopher Kenny, Christopher Weber, Kathleen Bratton

Faculty Publications

It is well established that discussion networks have meaningful consequences for a variety of sociopolitical attitudes and behavior. In this project, we explore how social structure shapes reactions to disaster; in particular, the 2010 BP oil spill. We address the questions of how networks are relied upon following community-wide disaster, and to what extent these networks mirror social structures in other domains. To examine these questions, we analyze data that experimentally vary the commonly employed discussion “name-generator” questions to see if oil spill discussants are fundamentally different from important matters discussants. Relative to “important matters” discussants, we find strong support …

Crowdfunding Without The Crowd, Darian M. Ibrahim

Faculty Publications

The final crowdfunding rules took three years for the Securites and Exchange Commission to pass, but crowdfunding—the offering of securities over the Internet—is now a reality. But now that crowdfunding is legal, will it be successful? Will crowdfunding be a regular means by which new companies raise money, or will it be relegated to a wasteland of the worst startups and foolish investors? This Article argues that crowdfunding has a greater chance of success if regulators abandon the idea that the practice does (and should) employ “crowd-based wisdom.” Instead, I argue that crowdfunding needs intermediation by experts that mirrors the …

Predicting Cryptic Links In Host-Parasite Networks, Tad Dallas, Andrew W. Park, John M. Drake

Faculty Publications

Networks are a way to represent interactions among one (e.g., social networks) or more (e.g., plant-pollinator networks) classes of nodes. The ability to predict likely, but unobserved, interactions has generated a great deal of interest, and is sometimes referred to as the link prediction problem. However, most studies of link prediction have focused on social networks, and have assumed a completely censused network. In biological networks, it is unlikely that all interactions are censused, and ignoring incomplete detection of interactions may lead to biased or incorrect conclusions. Previous attempts to predict network interactions have relied on known properties of network …

Assessing Re-Composition Of Xing’An Larch In Boreal Forests After The 1987 Fire, Northeast China, Junjie Wang, Cuizhen Wang, Shuying Zang

Faculty Publications

Xing’an larch, a deciduous coniferous species, is the zonal tree of the Greater Xing’an Mountains in Northeast China. In May 1987, a catastrophic fire broke out in the mountains and burned 1.3 million hectares of forests in 26 days. While studies have shown that forest greenness has come back to normal in certain years, the re-composition of this zonal species has not been studied after the 1987 fire. With a series of Landsat 8 OLI images acquired in 2013–2015, this study builds the Normalized Difference Vegetation Index (NDVI) and Green Vegetation Index (GVI) time series in a complete growing cycle. …

Digital Hegemonies: The Localness Of Search Engine Results, Andrea Ballatore, Mark Graham, Shilad Sen

Faculty Publications

Every day, billions of Internet users rely on search engines to find information about places to make decisions about tourism, shopping, and countless other economic activities. In an opaque process, search engines assemble digital content produced in a variety of locations around the world and make it available to large cohorts of consumers. Although these representations of place are increasingly important and consequential, little is known about their characteristics and possible biases. Analyzing a corpus of Google search results generated for 188 capital cities, this article investigates the geographic dimension of search results, focusing on searches such as “Lagos” and …

Limiting The Collective Right To Exclude, Andrea Boyack

Faculty Publications

For decades, society’s disparate interests and priorities have stymied attempts to resolve issues of housing affordability and equity. Zoning law and servitude law, both of which have been robustly empowered by decades of jurisprudence, effectively grant communities the legal right and ability to exclude various sorts of residences from their wealthiest neighborhoods. Exclusion by housing type results in exclusion of categories of people, namely, renters, the relatively poor, and racial minorities. Although our society’s housing woes may indeed be intractable if we continue to treat a group’s right to exclude with the level of deference that such exclusionary efforts currently …

Predicting Cryptic Links In Host-Parasite Networks, Tad Dallas, Andrew W. Park, John M. Drake

Faculty Publications

© 2017 Dallas et al. Networks are a way to represent interactions among one (e.g., social networks) or more (e.g., plant-pollinator networks) classes of nodes. The ability to predict likely, but unobserved, interactions has generated a great deal of interest, and is sometimes referred to as the link prediction problem. However, most studies of link prediction have focused on social networks, and have assumed a completely censused network. In biological networks, it is unlikely that all interactions are censused, and ignoring incomplete detection of interactions may lead to biased or incorrect conclusions. Previous attempts to predict network interactions have relied …

Pleistocene To Holocene Expansion Of The Black-Belt Cichlid In Central America, Vieja Maculicauda (Teleostei: Cichlidae), Caleb D. Mcmahan, Luke Ginger, Marcy Cage, Kyle T. David, Prosanta Chakrabarty, Mark Johnston, Wilfredo A. Matamoros

Faculty Publications

© 2017 McMahan et al.This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The distributions of many Northern Hemisphere organisms have been influenced by fluctuations in sea level and climatic conditions during Pleistocene interglacial periods. These cycles are associated with range contraction and refugia for northern-distributed organisms as a response to glaciers. However, lower sea levels in the tropics and sub-tropics created available habitat for expansion of the ranges of freshwater organisms. The goal of …

Fire Exclusion And Climate Change Interact To Affect Long-Term Changes In The Functional Composition Of Plant Communities, Daijiang Li, Donald M. Waller

Faculty Publications

© 2017 John Wiley & Sons Ltd Aim: Plant functional traits allow us to mechanistically link changes in species composition to changes in ecosystem functions. Understanding how and why changes occur in functional composition of plant communities can thus help us better conserve and restore biodiversity. We aim to examine long-term effects of fire exclusion and climate change on the functional composition of fire-maintained pine barrens in central Wisconsin. Location: Central Wisconsin, USA. Methods: Using a database that included vegetation data of surveys (1958) and resurveys (2012) of 30 sites, we quantified functional composition (α and β functional diversity, community-weighted …

Sacral Variability In Tailless Species: Homo Sapiens And Ochotona Princeps, Robert G. Tague

Faculty Publications

Homo sapiens is variable in number of sacral vertebrae, and this variability can lead to obstetrical complication. This study uses the comparative method to test the hypothesis that sacral variability in H. sapiens is associated with absence of a tail. Three species of lagomorphs are studied: Ochotona princeps (N = 271), which is tailless, and Lepus californicus (N = 212) and Sylvilagus audubonii (N = 206), which have tails. Results show that O. princeps has (1) higher diversity index for number of sacral vertebrae (0.49) compared to L. californicus (0.25) and S. audubonii (0.26) and (2) significantly higher percentage of …

Impact Of High-Resolution Topographic Mapping On Beach Morphological Analyses Based On Terrestrial Lidar And Object-Oriented Beach Evolution, Xuelian Meng, Xukai Zhang, Rodolfo Silva, Chunyan Li, Lei Wang

Faculty Publications

This research applied terrestrial LiDAR for laboratory beach evolution experiments to quantify the impact of resolution on topographic mapping and change analyses. The multi-site registration and multi-Temporal scanning processes produced high accuracy (-0.002 - 0.003 m) topographic models in a wave tank environment. Morphological analyses based on surface change and profiles showed that models of all resolutions were capable of capturing major sediment changes in relatively smooth areas. However, higher resolution models were necessary in areas with rough surfaces and sudden elevation changes, while coarser resolution models smoothed the roughness and underestimated feature height (e.g., peaks and troughs). Decreasing resolutions …

Engendering The Buddhist State: Territory, Sovereignty And Sexual Difference In The Inventions Of Angkor, By Ashley Thompson, London, Routledge, 2016, Xvi + 203 Pp., Us$145.00 (Hardback), Isbn 978 0 4156 7772 1, Erik W. Davis

Faculty Publications

No abstract provided.

If Its Walks Like Systematic Exclusion And Quacks Like Systematic Exclusion: Follow-Up On Removal Of Women And African-Americans In Jury Selection In South Carolina Capital Cases, 1997-2014, Ann M. Eisenberg, Amelia Courtney Hritz, Caisa Elizabeth Royer, John H. Blume

Faculty Publications

No abstract provided.