Digital Commons Network^™

Guidelines For Model Adaptation: A Study Of The Transferability Of A General Seagrass Ecosystem Dynamic Bayesian Networks Model, Paula Sobenko Hatum, Kathryn Mcmahon, Kerrie Mengersen, Paul Pao Yen Wu

Research outputs 2022 to 2026

In general, it is not feasible to collect enough empirical data to capture the entire range of processes that define a complex system, either intrinsically or when viewing the system from a different geographical or temporal perspective. In this context, an alternative approach is to consider model transferability, which is the act of translating a model built for one environment to another less well-known situation. Model transferability and adaptability may be extremely beneficial—approaches that aid in the reuse and adaption of models, particularly for sites with limited data, would benefit from widespread model uptake. Besides the reduced effort required to …

Spotted Fever Group Rickettsioses In Central America: The Research And Public Health Disparity Among Socioeconomic Lines, Kyndall C. Dye-Braumuller, Marvin S. Rodriguez Aquino, Stella C.W. Self, Mufaro Kanyangarara, Melissa Nolan Ph.D., Mph

Faculty Publications

Tick-borne diseases including rickettsial diseases are increasing in incidence worldwide. Many rickettsial pathogens can cause disease which is commonly underdiagnosed and underreported; Rickettsia pathogens in the spotted fever group (SFGR) are thus classified as neglected bacterial pathogens. The Central American region shoulders a large proportion of the global neglected disease burden; however, little is known regarding SFGR disease here. Although development varies, four of the seven countries in this region have both the highest poverty rates and SFGR disease burdens (El Salvador, Honduras, Guatemala, and Nicaragua), compared to Belize, Panama, and Costa Rica. Utilizing the Human Development Index (HDI), we …

Determinants Of Delayed Initiation Of Breastfeeding: A Cross-Sectional Multicenter Study In Abu Dhabi, The United Arab Emirates, Zainab Taha, Aysha Ibrahim Al Dhaheri, Ludmilla Wikkeling-Scott, Ahmed Ali Hassan, Dimitrios Papandreou

All Works

One of the best practices to reduce the risk of infant morbidity and mortality is the early initiation of breastfeeding, specifically within the first hour of birth, as the World Health Organization (WHO) recommends. Limited data exist on breastfeeding initiation and its related factors in the United Arab Emirates (U.A.E.). Therefore, the purpose of this research study was to evaluate and analyze the determinant factors associated with delayed initiation of breastfeeding among mothers with children aged <2 years old in a cross-sectional multicenter setting in Abu Dhabi, U.A.E. Seven governmental community and healthcare centers participated in the study from diverse geographic areas of Abu Dhabi. A trained female research assistant collected information from mothers with young children attending the centers. All participants were informed in detail about the purpose of the study and signed a written consent form. A total of 1610 mother-child pairs were included in the study. The mean (standard deviation) of maternal age and children's age was 30.1 (5.1) years and 8.1 (5.9) months, respectively. Six hundred and four (604) (37.5%) reported delayed initiation of breastfeeding. Factors associated with delayed breastfeeding initiation were being of non-Arab nationality (adjusted odds ratio (A.O.R.) 1.30, 95% confidence interval (CI) 1.03, 1.63), caesarean section (AOR 2.85, 95% CI 2.26, 3.58), non-rooming-in (AOR 2.82, 95% CI 1.53, 5.21), first birth order (AOR 1.34, 95% CI 1.07, 1.69), and mothers with low-birth-weight children (AOR 3.30, 95% CI 2.18, 4.99) as was analyzed by multivariate logistic regression analysis. In conclusion, approximately four out of ten mothers delayed initiation of breastfeeding for more than one hour after delivery. The results of this study call for urgent policy changes to improve the early initiation rates of breastfeeding mothers in the U.A.E.

Flexible Drought Deciduousness In A Neotropical Understory Herb, Julia G. Harenčár, Eleinis Ávila-Lovera, Gregory R. Goldsmith, Grace F. Chen, Kathleen M. Kay

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

PREMISE OF THE STUDY

Adaptive divergence across environmental gradients is a key driver of speciation. Precipitation seasonality gradients are common in the tropics, yet drought adaptation is nearly unexplored in neotropical understory herbs. We examine two recently diverged neotropical spiral gingers, one adapted to seasonal drought and one reliant on perennial water, to uncover the basis of drought adaptation.

METHODS

We combine ecophysiological trait measurements in the field and greenhouse with experimental and observational assessment of real-time drought response to determine how Costus villosissimus (Costaceae) differs from C. allenii to achieve drought adaptation.

KEY RESULTS

We find that drought-adapted C. …

Amplification Of Black Vulture (Coragyps Atratus) Dna From Regurgitated Food Pellets, Daniel R. Taylor, Bryan M. Kluever, John S. Humphrey, Iona M. Hennessy, Amber Sutton, William E. Bruce, Antoinette J. Piaggio

United States Department of Agriculture Wildlife Services: Staff Publications

Studies that rely on noninvasive collection of DNA for birds often use feces or feathers. Some birds, such as vultures, regurgitate undigested matter in the form of pellets that are commonly found under roost sites. Our research demonstrates that regurgitated pellets are a viable, noninvasive source of DNA for molecular ecology studies of vultures. Our objectives were to amplify 5 microsatellite loci designed for distinguishing Turkey Vultures (Cathartes aura) and Black Vultures (Coragyps atratus) in a single, multiplexed PCR, and to determine how long the target nuclear DNA persists after a vulture pellet is regurgitated and …

Chemical Toxicants In Water: A Geohealth Perspective In The Context Of Climate Change, Naveen Joseph, Tate Libunao, Elizabeth Herrmann, Shannon L. Bartelt-Hunt, Catherine R. Propper, Jesse E. Bell, Alan S. Kolok

Department of Civil and Environmental Engineering: Faculty Publications

The editorial focuses on four major themes contextualized in a virtual GeoHealth workshop that occurred from June 14 to 16, 2021. Topics in that workshop included drinking water and chronic chemical exposure, environmental injustice, public health and drinking water policy, and the fate, transport, and human impact of aqueous contaminants in the context of climate change. The intent of the workshop was to further define the field of GeoHealth. This workshop emphasized on chemical toxicants that drive human health. The major calls for action emerged from the workshop include enhancing community engagement, advocating for equity and justice, and training …

Population Genetics Of Cownose Rays, Rhinoptera Spp. In The Western Atlantic, Helen Weber

Master's Theses

Using molecular tools (e.g., the NADH subunit II mitochondrial gene), this study was the first to document the Brazilian cownose ray, Rhinoptera brasiliensis, within the northwestern Atlantic (NWA), and was the first study to examine population structure in R. brasiliensis within the NWA or northern Gulf of Mexico (GMX), revealing novel insights into the population biology of the animal and extending its range by nearly 1,500 km. This study also examined the sympatrically occurring American cownose ray, R. bonasus, and found population structure between the NWA and the GMX and the NWA and the southwestern Atlantic (SWA). High …

Using An Affinity Analysis To Identify Phytoplankton Associations, Weiju Zhu, Zhaojian Ding, Yangdong Pan, Quanxi Wang

Environmental Science and Management Faculty Publications and Presentations

Phytoplankton functional traits can represent particular environmental conditions in complex aquatic ecosystems. Categorizing phytoplankton species into functional groups is challenging and time-consuming, and requires high-level expertise in species autecology. In this study, we introduced an affinity analysis to aid the identification of candidate associations of phytoplankton from two data sets comprised of phytoplankton and environmental information. In the Huaihe River Basin with a drainage area of 270,000 km2 in China, samples were collected from 217 selected sites during the low-water period in May 2013; monthly samples were collected during 2006–2011 in a man-made pond, Dishui Lake. Our results indicated that …

Predicting Suicide In Counties: Creating A Quantitative Measure Of Suicide Risk, Kate Mobley, Gita Taasoobshirazi

Faculty Articles

Rising rates of suicide over the past two decades have increased the need for wide-ranging suicide prevention efforts. One approach is to target high-risk groups, which requires the identification of the characteristics of these population sub-groups. This suicidology study was conducted using large-scale, secondary data to answer the question: using the research on suicide, are there variables studied at the community level that are linked to suicide and are measurable using quantitative, demographic data that are already collected and updated? Data on deaths from suicide in U.S. counties for the years 2000, 2005, 2010 and 2015 were analyzed using multiple …

The Adaptation Of Export-Scale Urban Farmers Amid The Covid-19 Pandemic In Bandung Metropolitan, Kinanti Indah Safitri, Oekan Soekotjo Abdoellah, Budhi Gunawan, Parikesit -, Yusep Suparman, Akhmad Zainal Mubarak, Margareth Pardede

The Qualitative Report

These days, urban agriculture is more than a hobby. It has expanded into a local commercial business, even to an export scale. However, urban farmers who have commercialized their products must adapt to the COVID-19 pandemic situation, which has impacted many aspects of global life. This research used a mixed-method approach. We collected quantitative data from 107 respondents on the household commercialization index, income level, and education level of export-scale-urban farmers in the Bandung metropolitan area, West Java, Indonesia. We also used qualitative data to determine how farmers were adapting to difficult situations due to the COVID-19 pandemic. This information …

Screening And Assessment Of Cancer-Related Fatigue: A Clinical Practice Guideline For Health Care Providers, Mary I. Fisher, Joy C. Cohn, Shana Harrington, Jeannette Lee, Daniel Malone

Physical Therapy Faculty Publications

Cancer-related fatigue (CRF) is the most common side effect of cancer treatment. Regular surveillance is recommended, but few clinical practice guidelines transparently assess study bias, quality, and clinical utility in deriving recommendations of screening and assessment methods. The purpose of this clinical practice guideline (CPG) is to provide recommendations for the screening and assessment of CRF for health care professions treating individuals with cancer. Following best practices for development of a CPG using the Appraisal of Guidelines for Research and Evaluation (AGREE) Statement and Emergency Care Research Institute (ECRI) Guidelines Trust Scorecard, this CPG included a systematic search of the …

Social Determinants Of Stroke Hospitalization And Mortality In United States’ Counties, Randhir Sagar Yadav, Durgesh Chaudhary, Venkatesh Avula, Shima Shahjouei, Mahmoud Reza Azarpazhooh, Vida Abedi, Jiang Li, Ramin Zand

Neuroscience Institute Publications

(1) Background: Stroke incidence and outcomes are influenced by socioeconomic status. There is a paucity of reported population-level studies regarding these determinants. The goal of this ecological analysis was to determine the county-level associations of social determinants of stroke hospitalization and death rates in the United States. (2) Methods: Publicly available data as of 9 April 2021, for the socioeconomic factors and outcomes, was extracted from the Centers for Disease Control and Prevention. The outcomes of interest were “all stroke hospitalization rates per 1000 Medicare beneficiaries” (SHR) and “all stroke death rates per 100,000 population” (SDR). We used a multivariate …

Jefferson Digital Commons Quarterly Report: April-June 2022, Larissa Gordon, Mslis, Med, Ma, Anita Lai, Mlis

Jefferson Digital Commons Reports

This quarterly report includes:

• Articles
• Conferences and Symposia
• CREATE Day Presentations
• Thesis/Dissertations
• Grand Rounds and Lectures
• Capstone Presentations
• Journals and Newsletters
• Posters
• Misc.
• What People are Saying About the Jefferson Digital Commons

A Gis Suitability Model Evaluating Habitat Characteristics Influencing Beaver (Castor Canadensis) Lodge Site Selection And Lodge Occupancy In Central Adirondacks, New York, Amanda K. Jacobs

Theses - ALL

The North American beaver (Castor canadensis) represents a quintessential example of an "ecosystem engineer." Yet the species' landscape-scale impacts on hydrology, geomorphology, and ecosystem ecology are not uniformly distributed through landscapes or time. Understanding beaver lodge site selection and lodge fidelity through time can help to predict where the greatest effects of beaver activity may occur. In this research project, I seek to understand the relationships between beaver habitat suitability, the habitat variables that currently define suitable areas, and lodge occupancy over time. Using Geographic Information Systems (GIS) to model habitat suitability, I use hydrologic, vegetative, and physiographic variables to …

Efficiency In The Upper Deschutes Basin: Understanding The Hydrosocial Implications Of Irrigation Canal Piping, Rebecca Anderson

Dissertations and Theses

In response to water scarcity, irrigation efficiency projects aim to conserve water for in-stream flow and agricultural use. Piping irrigation canals is a common irrigation efficiency method which reduces the loss of incidental recharge, resulting in trade-offs within a hydrosocial system. Few studies have focused on the consequences of canal piping and none have integrated a critical analysis of the social factors involved in deciding what constitutes 'efficient' water use. This study seeks to fill this gap by combining natural and social science to give attention to the scales and perspectives involved in irrigation efficiency canal piping and the material …

Illuminating Protist Diversity In Pitcher Plants And Bromeliad Tanks, Robin S. Sleith, Laura A. Katz

Biological Sciences: Faculty Publications

Many species of plants have evolved structures called phytotelmata that store water and trap detritus and prey. These structures house diverse communities of organisms, the inquiline microbiome, that aids breakdown of litter and prey. The invertebrate and bacterial food webs in these systems are well characterized, but less is known about microbial eukaryotic community dynamics. In this study we focus on microbes in the SAR clade (Stramenopila, Alveolata, Rhizaria) inhabiting phytotelmata. Using small subunit rDNA amplicon sequencing from repeated temporal and geographic samples of wild and cultivated plants across the Northeast U.S.A., we demonstrate that communities are variable within and …

Association Between Suicide Rate And Human Development Index, Income, And The Political System In 46 Muslim-Majority Countries: An Ecological Study, S. M. Yasir Arafat, Marthoenis Marthoenis, Murad Khan, Mohsen Rezaeian

Brain and Mind Institute

Very little has been researched assessing the relationship between the suicide rate and the ecological perspectives of the country, especially in the Muslim majority countries. We aimed to determine the association between suicide rate and the ecological parameters of 46 Muslim majority countries. We extracted the Muslim majority countries and their suicide rate, income distribution, distribution of the WHO region and continents, and Human Development Index (HDI). We assessed the correlation of the proportion of Muslim populations, the total population of the countries, number of suicides, continent, income group, political system, and HDI score with the suicide rate. The median …

Utilizing A Culturally Relevant Ecology Curriculum To Help Students See Intersections Between Their Scientific And Cultural Identities, Emma Singer

School of Education and Leadership Student Capstone Projects

The purpose of this capstone was to create a two-week long ecology unit for high school biology students rooted in culturally relevant practices. The project sought to answer the question “How can utilizing a culturally relevant ecology curriculum help students see intersections between their scientific and cultural identities?” Data shows that people of color and women are underrepresented within the sciences. Disengagement and lack of interest in the sciences begins in middle and high school, suggesting students feel the material is irrelevant or disconnected from their lives. To address this gap, this project utilized a culturally relevant lens to create …

What Are Mycorrhizal Traits?, V. Bala Chaudhary, E. Penelope Holland, Suw Charman-Anderson, Aidee Guzman, Lukas Bell-Dereske, Tanya E. Cheeke, Adriana Corrales, Jessica Duchicela, Cameron Egan, Pushpa G. Soti

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Highlights

• Applying trait-based approaches to ecological research on mycorrhizal symbioses broadens ecological inferences, but there is no single unified framework to unite disparate language, terminology, and methods across the many multidisciplinary scientists studying mycorrhizas.
• We propose an inclusive framework for trait-based mycorrhizal ecology aimed to stimulate scientists around the world to collect and use more mycorrhizal trait data, particularly in understudied areas. This would widen our understanding regarding the ecological role of mycorrhizal symbioses at individual, species, community, and ecosystem scales.
• Analyzing how mycorrhizal symbioses fit within existing trait definitions highlights significant theoretical and empirical knowledge gaps, novel questions, and …

Affective Risk Perceptions Toward Travel In A Covid Era: Policy And State Political Influences, Chloe Riley

Theses and Dissertations

This paper aims to analyze the influence of state political affiliation and policy on affective risk perceptions, in the context of COVID-19. The study of risk perceptions in the travel literature is important because it can help industry leaders predict tourist decision-making and ensure feelings of safety for travelers. The relevance of risk perceptions has become even more apparent since the start of the COVID-19 pandemic. This study analyzes three policies put into place to mitigate the spread of COVID-19: mask mandate, cancellation of public events, and school closures. Affective risk perceptions were measured by the Tourism Crisis Management Initiative’s …

Biological Hydrogen Gas Production From Food Waste As A Sustainable Fuel For Future Transportation, Pitiporn Asvapathanagul, Leanne Deocampo, Nicholas Banuelos

Mineta Transportation Institute

In the global search for the right alternative energy sources for a more sustainable future, hydrogen production has stood out as a strong contender. Hydrogen gas (H2) is well-known as one of the cleanest and most sustainable energy sources, one that mainly yields only water vapor as a byproduct. Additionally, H2 generates triple the amount of energy compared to hydrocarbon fuels. H2 can be synthesized from several technologies, but currently only 1% of H2 production is generated from biomass. Biological H2 production generated from anaerobic digestion is a fraction of the 1%. This study aims to enhance biological H2 production …

Assistive Technologies Used In Canadian University Libraries For The Visually Impaired, Ramina Mukundan, Nikesh Narayanan

Library Philosophy and Practice (e-journal)

Information has always been a catalyst for societal improvements. Libraries play a crucial role in ensuring equitable access to information resources. Enhanced accessibility helps in establishing an atmosphere that supports and promotes inclusive education. Information and resource access is quite a challenge for visually impaired people. The needs of people with varying levels of visual impairment differ in their range and magnitude. The use of assistive technologies greatly aids in closing this gap. Resource and accessibility provisions should be modified to meet the needs of visually impaired users, who need specialized equipment to access traditional and modern technology-based information resources. …

Conscious And Unconscious Bias: The Hidden Pandemic Of Biases In Healthcare Exacerbated By Covid-19, Ibtisam Rauf, Abigail Hartmann, Alexandre Koumtchev, Syed Anjum Khan, Rahul Kashyap

HCA Healthcare Journal of Medicine

Background

There are limited data on unconscious bias in healthcare, but there is consistent evidence that it alters clinical decision-making. COVID-19 exacerbated many pre-existing disparities, and this paper seeks to identify, deconstruct, and propose mitigation strategies for a few of them.

Discussion

Five of the largest disparities amplified by the pandemic are discussed in this paper. Older people, Black people, uninsured people, rural communities, and people with lower education levels have been disproportionally affected in both morbidity and mortality.

Conclusions

The disparities discussed above did not occur in a vacuum but are the result of systemic issues. Equity starts with …

Seasonality In Phytoplankton Species Composition And Their Influence On Small Pelagic Fish Along The Western Pemba Channel, Margareth S Kyewalyanga

Tanzania Journal of Science

The influence of phytoplankton biomass on small pelagic fish groups was studied at three sites along the Western Pemba Channel, to assess the contribution of seasonality. Sampling took place at the three sites in the coastal waters of Tanga, Tanzania. The study used in-situ data from July 2016 to January 2017, remotely-sensed chlorophyll-a data from August 2016 to August 2017 and 2019–2020, and small pelagic fish catch data from the same periods as the remotely-sensed data. The dominant groups at all the three sites were diatoms, dinoflagellates, and cyanobacteria, with diatoms having the highest number of species compared to the …

The Preservation Of Wildlife Habitat In Ecosystems: Towards A Direction Under International Law To Prevent Species' Extinction, Anne Batchelor

Florida Journal of International Law

This article will advocate that treaties based on international environmental policy which favor global ecosystem preservation are the best, perhaps the only solution, which will ensure the survival of wildlife for present and future generations. The article begins with an overview of the alarming rate of species’ extinction occurring presently on the earth. Particular emphasis will be placed on extinction rates occurring in tropical rainforests which provide habitats for the greatest diversity of the world’s life forms. Deforestation of tropical rainforests has been characterized as “one of the world's great ecological disasters in the closing decades of the twentieth century.” …

A New Species Of Epeolus Latreille, 1802 (Hymenoptera: Apidae) From Western North America, Thomas M. Onuferko, Cory S. Sheffield

Insecta Mundi

A new species of Epeolus Latreille, 1802 (Hymenoptera: Apidae)—E. emiliae Onuferko and Shef­field, new species—is described from North America west of the Great Plains. It is morphologically most similar to Epeolus autumnalis Robertson, 1902, a species known exclusively from east of the Rocky Moun­tains. DNA barcode sequences from representatives of E. autumnalis and E. emiliae share a barcode index number (i.e., BIN: BOLD:AAF2361), but the two species exhibit marked and consistent differences in integu­ment coloration and the patterns of pubescence on the metasoma, and their distributional ranges, based on known specimens, show no overlap. This discovery increases …

Effects Of Forest Restoration On The Recovery Of Dead Wood, Associated Arthropods, And Insect-Mediated Wood Decomposition, Estefania Fernandez Barrancos

Dissertations

Dead wood represents 8% of terrestrial carbon stocks and is an important source of habitat and food for decomposer and non-decomposer arthropods. However, anthropogenic disturbance reduces the amount of dead wood, putting at risk the presence of a habitat that is essential for many arthropods and other organisms that rely on it for food and shelter. Forest restoration aims to assist the recovery of ecosystems that have been damaged or destroyed and could be a means to recover both dead wood and its associated arthropod communities. This doctoral dissertation lies at the intersection of climate change, biodiversity loss and ecological …

Citizens' Preferences On Green Infrastructure Practices And Their Enhancement In Portland, Oregon, Katsuya Tanaka, Hal T. Nelson, Nicholas Mccullar, Nishant Parulekar

Public Administration Faculty Publications and Presentations

Green infrastructure (GI) has been gaining increasing attention due to its efficiency in controlling and purifying urban stormwater runoff, creating environmental amenities, and biodiversity conservation. Nevertheless, the existing knowledge of people's preferences for GI is not yet sufficient for evidence-based policymaking for enhancing GI. This study analyzes citizens' perceptions of the relative importance of six GI practices and estimates their willingness to pay (WTP) to enhance them. To this end, the study applies two types of stated preference methods (best-worst scaling and contingent valuation) to citizen survey data collected in Portland, Oregon. We found that GI practices that are more …

High Daily And Year-Round Variability In Denitrification And Nitrogen Fixation In A Northern Temperate River, Kevin Nevorski, Amy M. Marcarelli

Michigan Tech Publications, Part 1

Rates of nitrogen (N) cycling processes like denitrification and dinitrogen (N2) fixation, which together are the primary contributors to N2 flux rates from surface waters, may change at different time scales from seasons to weeks to days. Yet, we know little about the magnitude, mechanisms or drivers of these temporal changes, especially at shorter daily and weekly timescales. Quantifying variation in rates and drivers across temporal scales is essential to understand how nutrient cycling processes operate in aquatic ecosystems and predict how they may respond to shifting seasonal dynamics caused by global change (i.e., earlier snowmelt and extreme weather events). …

Dampak Kebijakan Psbb Terhadap Konsentrasi Pm2.5 Di Indonesia, Erwin Dariyanto

Jurnal Kebijakan Ekonomi

The aims of this study was to examine the impact of implementation of the Large-Scale Social Restriction or PSBB policy on the concentration of particulate matter 2.5 (PM_2.5). The observation period lasted from September 1, 2019 to December 31, 2020 in five major cities in Indonesia, namely Jakarta, Bandung, Yogyakarta, Semarang, and Surabaya. The data was processed using the fixed effect least square dummy variable (LSDV) model to test the impact of the PSBB policy or restrictions on citizen mobility to reduce the spread of COVID-19 on PM_2.5 concentrations.

As a result, the PSBB policy had a …