Digital Commons Network^™

Laurentian Great Lakes Warming Threatens Northern Fruit Belt Refugia, Robert Warren

Biology Faculty Datasets

Climate refugia are anomalous ‘pockets’ of spatially or temporally disjunct environmental conditions that buffer distinct flora and fauna against prevailing climatic conditions. Physiographic landscape features, such as large water bodies, can create these micro-to-macro-scale terrestrial habitats, such as the prevailing westerly winds across the Laurentian Great Lakes that create relatively cooler leeward conditions in spring and relatively warmer leeward conditions in autumn. The leeward Great Lakes climate effects create a refugia (popularly known as a ‘fruit belt’) favorable for fruit-bearing trees and shrubs. This fruit belt refugia owes its existence to seasonal inversions whereby spring cooling prevents early flower budding …

A Divide & Concur Approach To Collaborative Goal Modeling With Merge In Early-Re: Supplemental Material, Kathleen R. Hablutzel, Anisha Jain, Alicia M. Grubb

Computer Science: Faculty Publications

Supplemental material for the paper:
"A Divide & Concur Approach to Collaborative Goal Modeling with Merge in Early-RE"
This paper proposes a formal approach to the problem of merging the attributes of intentions and actors, once these elements have been matched.

Dielectric State Variables As Qualitative Indicators Of Moisture Absorption-Caused Mechanical Property Degradation In Gfrp Composite Structures, Partha Pratim Das, Vamsee Vadlamudi, Rassel Raihan

Institute of Predictive Performance Methodologies (IPPM-UTARI)-Archive

Fiber reinforced polymer (FRP) composites are being used in numerous fields owing to their intrinsic strength to weight ratio and various design benefits. However, these materials are prone to environmental aging, particularly moisture absorption. In essence, absorbed moisture infiltrates the polymer matrix and induces changes in the polymer network through chain scission, plasticization, and other bonding interactions. This causes irreversible damages to the material and significantly decreases mechanical strength. In this study, Broadband Dielectric Spectroscopy (BbDS) has been used to identify the absorption mechanisms in glass fiber reinforced polymer (GFRP) composites by detecting the related polarization mechanisms. Here, results show …

Dielectric Analysis To Predict Moisture Absorption In Structural Composites: A Data-Driven Approach, Partha Pratim Das, Monjur Morshed Rabby, Vamsee Vadlamudi, Rassel Raihan

Institute of Predictive Performance Methodologies (IPPM-UTARI)-Archive

Due to continual exposure to moist environment, environmental degradation is a major threat to structural composites throughout their service life. Impedance Spectroscopy (IS)/Broadband Dielectric Spectroscopy (BbDS) is a reliable nondestructive method that has been used in polymer industries for dielectric characterization of material. While moisture absorption causes irreversible changes in the polymer matrix composites, it also alters the electrical properties of the system which is detectable using BbDS. Since the physics that drives the change in electrical characteristics is driven by the modifications imposed by water molecules (whether free or bound), both events can be linked. A dielectric spectrum over …

Coupled Effects In Dielectric And Thermal Properties Of Polymer Matrix Composite Structures Due To Moisture Absorption, Partha Pratim Das, Monjur Morshed Rabby, Vamsee Vadlamudi, Kenneth Reifsnider, Rassel Raihan

Institute of Predictive Performance Methodologies (IPPM-UTARI)-Archive

Fiber reinforced polymer (FRP) composites are being used in number of fields including aerospace, marine, sports, medical, power sectors, etc. due to their lightweight nature while retaining high mechanical performance in terms of high specific strength, stiffness, and great fatigue properties. However, the applicability of these materials is restricted by their stability up to a certain temperature (i.e. glass transition temperature) and environmental degradation (i.e. moisture, UV light, etc.). Moisture ingression greatly reduces their mechanical properties altering material structure by causing polymer plasticization, chain scission and fiber-polymer interface deterioration. These changes instantaneously affect the thermal properties of the materials which …

The Effect Of Plasma Treatment On The Cure Behavior Of Out-Of-Life Prepregs And An Investigation Of The Mechanical Properties Of Composite Parts Manufactured From Plasma-Treated Prepregs, Monjur Morshed Rabby, Partha Pratim Das, Minhazur Rahman, Vamsee Vadlamudi, Rassel Raihan

Institute of Predictive Performance Methodologies (IPPM-UTARI)-Archive

Many industries, including aircraft, automobiles, and marine, are using prepreg (pre-impregnated fibers and a partially cured polymer matrix) to manufacture composite parts to achieve optimum fiber and resin volume ratio and part repeatability. Since prepregs have a short out oflife (i.e., the maximum storing time allowed at room temperature), they must be stored in refrigerators at low temperatures, which, if not maintained, have an unfavorable influence on the intended quality of the final product. For the present study, glass/epoxy prepregs (expired out-life) were plasmatreated before being used to make the composite part to compensate for the room temperature aging effect. …

Enhancing Gdf1 Expression With Devil’S Club (Oplopanax Horridus) Extracts In Acute Myeloid Leukemia, Vasiliki Papakotsi

Doctoral Dissertations

Acute myeloid leukemia (AML) is a clonal hematopoietic malignancy with highly heterogeneous molecular and clinical profiles. It is one of the deadliest blood cancers, resulting in approximately 10,000 deaths each year. Impaired hematopoiesis is one of AML’s hallmarks. This entails defective erythropoiesis and proliferation of undifferentiated myeloblasts. AML is also characterized by chemoresistance and high relapse rates. Despite significant advances in treatments, there is no cure for AML. Therefore, there is an emerging and unmet need to shift away from traditional chemotherapeutics and focus on targeted therapies with curative potential. Growth/differentiation factor 1 (GDF1) is a member of the TGFβ …

Influence Of Permafrost Thaw, Microtopography, And Precipitation On Methane Cycling In Northern Peatlands, Clarice Rachelle Perryman

Doctoral Dissertations

Northern peatlands are both globally important carbon (C) stores and sources of methane (CH4). The impacts of climate change including warming, changing precipitation and hydrology, shifts in vegetation, and thawing permafrost may increase the vulnerability of the northern peatland C stock, including the amount of C lost to the atmosphere as CH4. Variation in peatland water table depth strongly influences CH4 cycling, as water table levels largely control redox conditions and therefore rates of anaerobic CH4 production (methanogenesis) and aerobic CH4 oxidation (consumption, methanotrophy). As CH4 emissions reflect the balance of methanogenesis and methanotrophy, changes in water table depth due …

'Never Time To Do Anything Well': Mothers' Reported Constraints During A Pandemic, Grace Ellen Brannon, Molly Wiant Cummins

Communication Faculty Publications - Archive

Mothers’ perceptions of mothering could potentially influence several aspects of their home and work commitments. This study explores how mothers perceive their mothering experiences during the COVID-19 pandemic via 18 in-depth interviews. The authors use constraint theory and negotiation frameworks to discuss how family communication processes and perceptions of mothering are related within the context of the early days of the COVID-19 pandemic in the United States. Findings demonstrated how working from home increased perceptions of family tensions, especially with the lack of home/work separation. Throughout the narratives, participants describe specific constraints at the intrapersonal, interpersonal, and structural levels, as …

Implicating Ourselves Through Our Research: A Duoethnography Of Researcher Reflexivity, Molly Wiant Cummins, Grace Ellen Brannon

Communication Faculty Publications - Archive

Researcher reflexivity is not a new concept in qualitative research. However, how/if researchers engage in that reflexivity varies. In this essay, the authors engage in reflexivity about a research project they conducted together. The previous project consisted of semi-structured interviews with U.S.-based mothers regarding their perceptions about motherhood. We then used intensive motherhood as a theoretical lens through which we analyzed the interviews. The project also encompassed mothers’ perceptions during the COVID-19 global pandemic. Through duoethnography, the researchers reflexively consider major dead angles of their project, challenges they faced, and what reflexivity brings to the forefront. They further reflect on …

Callery Pear Removal Experiment: Trees-Intact (Medlar Conservation Area), Margaret E. Maloney, Eric B. Borth, Grace Dietsch, Mary C. Lloyd, Ryan W. Mcewan

Five Rivers MetroParks Collaboration Data Archive

The invasive tree Callery pear (Pyrus calleryana) is problematic in open habitats in the American Midwest. We investigated the efficacy of various control techniques on P. calleryana invasion in grasslands. Treatments were applied to P. calleryana stems that were single-stemmed trees (around 7 years; n = 40 stems), and response of those stems was measured.

Callery Pear Removal Experiment: Trees-Sprouting (Stillwater Conservation Area), Margaret E. Maloney, Eric B. Borth, Grace Dietsch, Mary C. Lloyd, Ryan W. Mcewan

Five Rivers MetroParks Collaboration Data Archive

The invasive tree Callery pear (Pyrus calleryana) is problematic in open habitats in the American Midwest. We investigated the efficacy of various control techniques on P. calleryana invasion in grasslands. Treatments were applied to P. calleryana stems that had experienced mowing annually for several years and were sprouting (n = 100 stems) and response of those stems was measured.

Geospatial Data Permanent Plot, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Permanent plot GIS shapefile that measures 100m x 105m and consists of 420 contiguous 5m x 5m subplots. There are 21 transects that run from south to north and 20 subplots per transect that run east to west. This downloadable data is a zipped file containing 8 shapefile building blocks. Geographic Coordinate System: GCS_North_American_1983. Projected Coordinate System: NAD_1983_StatePlane_Ohio_South_FIPS_3402 (meters).

Geospatial Data Trees 1994, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Location and demographic data collected for each individual tree in 1994 in Hueston Woods State Nature Preserve. These maps were digitized from the historical field maps to a GIS shapefile for each sampling year. Geographic Coordinate System: GCS_North_American_1983. Projected Coordinate System: NAD_1983_StatePlane_Ohio_South_FIPS_3402 (meters).

Geospatial Data Trees 2000, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Location and demographic data collected for each individual tree in 2000 in Hueston Woods State Nature Preserve. These maps were digitized from the historical field maps to a GIS shapefile for each sampling year. Geographic Coordinate System: GCS_North_American_1983. Projected Coordinate System: NAD_1983_StatePlane_Ohio_South_FIPS_3402 (meters).

Geospatial Data Trees 2022, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Location and demographic data collected for each individual tree in 2022 in Hueston Woods State Nature Preserve. These maps were digitized to a GIS shapefile for each sampling year. Geographic Coordinate System: GCS_North_American_1983. Projected Coordinate System: NAD_1983_StatePlane_Ohio_South_FIPS_3402 (meters).

Geospatial Data Trees 1988, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Location and demographic data collected for each individual tree in 1988 in Hueston Woods State Nature Preserve. These maps were digitized from the historical field maps to a GIS shapefile for each sampling year. Geographic Coordinate System: GCS_North_American_1983. Projected Coordinate System: NAD_1983_StatePlane_Ohio_South_FIPS_3402 (meters).

Sheepshead (Archosargus Probatocephalus) Neurocranium, Andrew J. Hartmann, Steven Peterson, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Neurocranium from Sheepshead (Archosargus probatocephalus)

Teachers’ Understandings Of The Social And Professional Support Needed To Implement Change In Qatar, Ibrahim M. Karkouti, Reem Khalid Abu-Shawish, Michael H. Romanowski

Faculty Journal Articles

Currently, Qatar is implementing an educational reform to enhance teaching and learning in public and private schools. The Qatar National School Accreditation significantly impacted Qatar's private schools, requiring teachers to implement various mandated educational changes. Using House (1981) types of social support, this qualitative, phenomenological study was designed to explore teachers' understandings regarding the social and professional support they need to implement educational change at an international school in Qatar. To help teachers engage in change, findings revealed that educational leaders need to heed teacher wellbeing during educational reform, educational change should be contextualized and tailored to the needs of …

Data From The Bcrp On Required And Actual Reserves, Banco Central De Reserva Del Perº / Central Reserve Bank Of Peru

Documents

No abstract provided.

Gbpp Results, Bank Of Canada/Central Bank Of Canada/La Banque Du Canada

Documents

data showing the GoC securities purchased and operations conducted under the GBPP

History Of Public Sector Securities Cumulative Purchase Breakdowns Under The Pepp, European Central Bank (Ecb)

Documents

data showing PEPP purchase amounts of member-state debt

Quantitative Raman Analysis Of Carotenoid Protein Complexes In Aqueous Solution, Joy Udensi, Ekaterina Loskutova, James Loughman, Hugh Byrne

Datasets

Carotenoids are naturally abundant fat-soluble pigmented compounds, with dietary, antioxidant and vision protection advantages. The dietary carotenoids, Beta Carotene, Lutein and Zeaxanthin, complexed with in bovine serum albumin (BSA) in aqueous solution, were explored using Raman spectroscopy to differentiate and quantify their spectral signatures. UV visible absorption spectroscopy was employed to confirm the linearity of responses over the concentration range employed (0.05-1mg/ml) and, of the 4 source wavelengths, 785nm, 660nm, 532nm, 473nm, 532nm was chosen to provide the optimal response. After preprocessing to remove water and BSA contributions, and correct for self-absorption, a partial least squares model with R^{2 …}

Using Satellite Images Datasets For Road Intersection Detection In Route Planning, Fatmaelzahraa Eltaher Ph.D, Susan Mckeever, Ayman Taha, Jane Courtney

Datasets

Understanding road networks plays an important role in navigation applications such as self-driving vehicles and route planning for individual journeys. Intersections of roads are essential components of road networks. Understanding the features of an intersection, from a simple T-junction to larger multi-road junctions is critical to decisions such as crossing roads or selecting safest routes. The identification and profiling of intersections from satellite images is a challenging task. While deep learning approaches offer state-of-the-art in image classification and detection, the availability of training datasets is a bottleneck in this approach. In this paper, a labelled satellite image dataset for the …

Detecting Road Intersections Automatically From Satellite Images Using A Deep Learning Approach, Fatmaelzahraa Eltaher Ph.D, Luis Miralles-Pechuán, Jane Courtney, Susan Mckeever

Datasets

Automatic detection of road intersections is an important task in various domains such as navigation, route planning, traffic prediction, and road network extraction. Road intersections range from simple three-way T-junctions (degree 3) to complex large-scale junctions with many branches. The location of intersections and their complexity is an important consideration in route planning, such as the requirement to avoid complex intersections on pedestrian journeys. This is relevant to vulnerable road users such as People with Blindness or Visually Impairment (PBVI) or children. Route planning applications, however, do not give information about the location or complexity of intersections as this information …

Emotion Regulation Strategies, Co-Rumination, And Emotional Wellbeing, Guillaume P. Tanfin

Research Datasets

The dataset represents answers to an online questionnaire that was completed by 305 participants. The dataset captures participants' levels of emotional wellbeing, cognitive reappraisal, expressive suppression, and co-rumination. The data also captures participants demographics (i.e., age in year, ethnicity, relationship status, and gender).

Shorter Cwr Cycling Tests As Proxies For Longer Tests In Highly Trained Cyclists, Chantelle Du Plessis, Mark Andrews, Lachlan J.G. Mitchell, Jodie Cochrane Wilkie, Trish King, Anthony J. Blazevich

Research Datasets

Severe-intensity constant work rate (CWR) cycling tests simulate the high-intensity competition environment and are useful for monitoring training progression and adaptation, yet impose significant physiological and psychological strain, require substantial recovery, and may disrupt athlete training or competition preparation. A brief, minimally fatiguing test providing comparable information is desirable.

Purpose: To determine whether physiological variables measured during, and functional decline in maximal power output immediately after, a 2-min CWR test can act as a proxy for 4-min test outcomes.

Methods: Physiological stress (V̇O₂ kinetics, heart rate, blood lactate concentrations ([La^-]_b)) was monitored and …

Global Change Drivers Synergize With The Negative Impacts Of Non-Native Invasive Ants On Native Seed-Dispersing Ants, Robert Warren

Biology Faculty Datasets

Non-native species invasion, habitat fragmentation and climate change individually impose negative impacts on natural systems, but their synergistic effects may do more harm than the sum of their parts. We examined the combined effects of these global change drivers by studying the impacts of experimental warming on seed-dispersing forest ant nesting and foraging in the Southeastern U.S. to determine if warming and forest fragmentation facilitated non-native ant invasion effects on native ants. Spring ant phenology and activities were monitored for two years (2019-2020) at weekly bait stations and in artificial nest occupancy. We found that, when combined, forest edge habitat …

Finding Combinations Of Objects Within Categories Using Edges Software, Erin M. Thorpe, Ehab Rizek, Yan Xu

Chemistry Software

Edges Software can be used to find the combinations of any objects within different categories. A combination is an arrangement of objects where order does not matter. The original intent of this software was to provide the combinations of proteins within different pathways to aid in building a protein-(target)-protein network where protein nodes are connected to each other through their common pathway edges. This software can analyze tens of thousands of rows of excel data in just a few minutes and provide an excel output that contains all the combinations of objects within the different categories. This output can then …

Assessment Of The Institute For Research Design In Librarianship (Irdl): Impact On The Research Productivity And Careers Of Academic Librarians, Frans Albarillo, Marie Kennedy, Kristine R. Brancolini

Librarian Publications & Presentations

Objective – This article reports the survey findings from a mixed-methods assessment of the six-year Institute for Research Design in Librarianship (IRDL). The Institute for Museum and Library Services (IMLS) provided funding for IRDL from 2014-2019; during this time, 124 academic and research librarians participated in a year-long continuing education program for novice researchers. This article assesses the effectiveness of IRDL in meeting short-term and long-term goals related to research productivity, job performance, and identity as a researcher. Beyond the assessment of IRDL itself, the study addresses the implications of IRDL for creating effective research continuing education programs and institutional …