Digital Commons Network^™

From Canopy To Consumer: What Makes And Modifies Terrestrial Dom In A Temperate Forest, Megan Behnke, Jason B. Fellman, David V. D'Amore, S. M. Gomez, R. G. Spencer

Faculty, Staff, and Students

To investigate how source and processing control the composition of “terrestrial” dissolved organic matter (DOM), we combine soil and tree leachates, tree DOM, laboratory bioincubations, and ultrahigh resolution Fourier-transform ion cyclotron resonance mass spectrometry in three common landscape types (upland forest, forested wetland, and poor fen) of Southeast Alaska’s temperate rainforest. Tree (Tsuga heterophylla and Picea sitchensis) needles and bark and soil layers from each site were leached, and tree stemflow and throughfall collected to examine DOM sources. Dissolved organic carbon concentrations were as high as 167 mg CL−1 for tree DOM, suggesting tree DOM fluxes may be substantial given …

From Canopy To Consumer: What Makes And Modifes Terrestrial Dom In A Temperate Forest, Megan Behnke, Jason B. Fellman, David V. D'Amore, S. M. Gomez, R. G. Spencer

Faculty, Staff, and Students

To investigate how source and processing control the composition of “terrestrial” dissolved organic matter (DOM), we combine soil and tree leachates, tree DOM, laboratory bioincubations, and ultrahigh resolution Fourier-transform ion cyclotron resonance mass spectrometry in three common landscape types (upland forest, forested wetland, and poor fen) of Southeast Alaska’s temperate rainforest. Tree (Tsuga heterophylla and Picea sitchensis) needles and bark and soil layers from each site were leached, and tree stemflow and throughfall collected to examine DOM sources. Dissolved organic carbon concentrations were as high as 167 mg CL−1 for tree DOM, suggesting tree DOM fluxes may be substantial given …

The Bg News March 02, 2022, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. March 02, 2022. Volume 101-Issue 22.

Psychosocial Reserve Capacity, Family Background And Selection Of An Educational Path – A Longitudinal Study From Finland, Paulyn Jean A. Claro, Leena Kristiina Koivusilta, Mari-Pauliina Vainikainen, Arja Rimpelä

Graduate School of Business Publications

Finnish students start academic or vocational track in upper secondary education at age 16 years. Track placement is based on grades, but family background and psychosocial resources may have influences. Using 2014 survey data of Grade 9 students in Helsinki Metropolitan area linked to the Joint Application Registry data as of 2017, we fitted two-level, sex-stratified, generalized structural equation models to determine how reserve capacity (academic self-efficacy and social support), family background, and the comprehensive schools predict track placement. Adjusting for the effect of grades, low reserve capacity and disadvantaged family background increased probabilities of vocational track and non-placement of …

A General Pattern Of Trade-Offs Between Ecosystem Resistance And Resilience To Tropical Cyclones, Christopher J. Patrick, John S. Kominoski, William H. Mcdowell, Benjamin Branoff, David Lagomasino, Miguel Leon, Enie Hensel, Marc J. S. Hensel, Bradley A. Strickland, T. Mitchell Aide, Anna Armitage, Marconi Campos-Cerqueira, Victoria M. Congdon, Todd A. Crowl, Donna J. Devlin, Sarah Douglas, Brad E. Erisman, Rusty A. Feagin, Simon J. Geist, Nathan S. Hall, Amber K. Hardison, Michael R. Heithaus, J. Aaron Hogan, J. Derek Hogan, Sean Kinard, Jeremy J. Kiszka, Teng-Chiu Lin, Kaijun Lu, Christopher J. Madden, Paul A. Montagna, Christine S. O'Connell, C. Edward Proffitt, Brandi Kiel Reese, Joseph W. Reustle, Kelly L. Robinson, Scott A. Rush, Rolando O. Santos, Astrid Schnetzer, Delbert L. Smee, Rachel S. Smith, Gregory Starr, Beth A. Stauffer, Lily M. Walker, Carolyn A. Weaver, Michael S. Wetz, Elizabeth R. Whitman, Sara S. Wilson, Jianhong Xue, Xiaoming Zou

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Tropical cyclones drive coastal ecosystem dynamics, and their frequency, intensity, and spatial distribution are predicted to shift with climate change. Patterns of resistance and resilience were synthesized for 4138 ecosystem time series from n = 26 storms occurring between 1985 and 2018 in the Northern Hemisphere to predict how coastal ecosystems will respond to future disturbance regimes. Data were grouped by ecosystems (fresh water, salt water, terrestrial, and wetland) and response categories (biogeochemistry, hydrography, mobile biota, sedentary fauna, and vascular plants). We observed a repeated pattern of trade-offs between resistance and resilience across analyses. These patterns are likely the outcomes …

The Parthenon, March 2, 2022, Tyler Spence, Connor Woodruff, Tyler Kennett, Evan Green, Shauntelle Thompson, Rafael Alfonso, Abby Hanlon, Abby Ayes, Alaiana Laster, Isabella Robinson

The Parthenon

No abstract provided.

Postfire Seedling Establishment Of Desert Peach (Prunus Fasciculata) And Joshua Tree (Yucca Brevifolia) From Simulated Seed Caches In The Mojave Desert, Mark Borchert

Western North American Naturalist

Desert rodents in the western USA cache enormous numbers of seeds. Seed caches represent a reliable, although highly variable, source of seedling recruitment for numerous desert plants. Prefire caching of refractory seeds (i.e., those capable of forming persistent seed banks) is an important source of postfire seedling recruitment, but it is likely that prefire caches of short-lived seeds also may contribute to postfire regeneration. The primary objective of this study was to quantify seedling recruitment from artificial caches of 2 species with short-lived seeds planted after a stand-replacing wildfire in a singleleaf pinyon (Pinus monophylla) forest. I investigated …

Attitude As Predictor Of Academic Achievement Of Students In Introduction To Library Studies In Federal Colleges Of Education In Southern Nigeria, Johnson Ayodeji Akerele, Akin Awoyemi, Samuel Oke Ogunniyi Phd

Library Philosophy and Practice (e-journal)

Poor academic achievement in Introduction to Library Studies, GSE 112, due to attitude has been a challenge in Nigeria. Therefore, this study investigated attitude as predictor of academic achievement in GSE 112 among students in federal colleges of education in Southern Nigeria. The study adopted purposive sampling technique to select five conventional colleges of education in Southern Nigeria. Simple random sampling technique was used to administer questionnaire to 20% of student population (1340) in each of the five colleges while total enumeration technique was used to distribute questionnaire to all forty-two (42) librarians teaching GSE 112. The sample size was …

Examining The Role Of Social Support And Neighborhood Deprivation In The Relationship Between Multiple Aces And Health Risk Behaviors, Marin L. Henderson-Posther

Dissertations and Theses

The accumulation of multiple adverse childhood experiences (ACEs) is associated with the disproportionate development of health risk behaviors (HRBs), such as smoking, substance use, physical inactivity, and risky HIV behaviors. The impact of neighborhood social inequities on the association between multiple ACEs and HRBs is not well known. This study aims to examine the impact of stressors associated with neighborhood deprivation on ACE-related HRBs, the potential protective factor of perceived social support (PSS), as well as better understand disproportionality experienced by racial/ethnic minorities. Through merging data from the 2010 Washington State Behavioral Risk Factor Surveillance System survey (n = …

No-Till Farming And Greenhouse Gas Fluxes: Insights From Literature And Experimental Data, S. J. Ruis, H. Blanco-Canqui, P. J. Jasa, V. L. Jin

Department of Agronomy and Horticulture: Faculty Publications

Tillage intensity may differently impact gaseous losses of C and N to the atmosphere, but data from long-term experiments are relatively few. Yet, this information is needed to better understand C and N losses and gains in agricultural systems. The objective of this study was to determine how tillage intensity affects soil greenhouse gas (GHG) fluxes (CO₂, N₂O, and CH₄) by comparing experimental data from moldboard plow (MP), chisel plow (CP), double disk (DD), and no-till (NT) soils after 38–40 yr of management in a rainfed corn (Zea mays L.)- soybean (Glycine …

The Right Bite, Sarah Schaier

UNH Today Archive

No abstract provided.

The Transcription Factor Vpxlnr Is Required For The Growth, Development, And Virulence Of The Fungal Pathogen Valsa Pyri, Feng He, Alex-Machio Kange, Jie Yang, Jiaxin Xiao, Rongbo Wang, Lu Yang, Yifan Jia, Zhengqing Fu, Yancun Zhao, Fengquan Liu

Faculty Publications

Pears (Pyrus sp.) are widely cultivated in China, and their yield accounts for more than 60% of global pear production. The fungal pathogen Valsa pyri is a major causal agent of pear canker disease, which results in enormous losses of pear production in northern China. In this study, we characterized a Zn₂Cys₆ transcription factor that contains one GAL4 domain and a fungal-trans domain, which are present in VpxlnR. The vpxlnR gene expression was upregulated in the invasion stage of V. pyri. To investigate its functions, we constructed gene deletion mutants and complementary strains. We observed …

Educational Priorities For The Future Of Emergency Nursing, Anna Maria Valdez

Dissertations

The purpose of this study was to examine how and to what extent current societal and healthcare trends will impact the educational needs of the emergency nurse. Additionally, this study sought to draw upon that information to facilitate the development of expert consensus about the major educational priorities for emergency nurses during the time period of 2008-2018. While there is a limited amount of current research related to the societal and healthcare trends that are impacting emergency nursing, an extensive literature review produced no studies that identified educational priorities in emergency nursing. A mixed methodology, qualitative-then-quantitative study design using a …

College Of Health Professions News, Georgia Southern University

College of Health Professions: News & Publications (2012-2023)

• Guest Speaker: Dr. Hillary McBride

Newsroom, Georgia Southern University

Newsroom (2006-2023)

• Georgia Southern University Professor Wins National Student Impact Award from Top Hat
• Hammond for Hope Scholarships Uplift Graduate Students, Hearing Loss Community

Evaluation Of Hippocampal Allostatic Load-Associated Factors In Animal Models Of Post-Traumatic Stress Disorder: Relevance To Human Ptsd, Dennis Parker Kelley

LSU Doctoral Dissertations

Post-traumatic stress disorder (PTSD) is associated with elevated allostatic load, nearly double the risk for metabolic syndrome, reduced hippocampal volume, and contextual memory processing deficits. Emerging evidence suggests that these stress effects may predispose individuals to the development of PTSD, and there is a known relationship between chronic stress and metabolic dysfunction. In this work, we utilized two rat models of PTSD to explore these connections. We used an acute predator odor stressor to investigate the relationship between PTSD-like behaviors and mitochondrial dysfunction in the hippocampus of rats, and we observed that conditioned place avoidance was associated with reduced mitochondrial …

Prediagnosis Leisure-Time Physical Activity And Lung Cancer Survival: A Pooled Analysis Of 11 Cohorts, Jae Jeong Yang, Yikyung Park, Et Al.

2020-Current year OA Pubs

BACKGROUND: Little is known about the association between physical activity before cancer diagnosis and survival among lung cancer patients. In this pooled analysis of 11 prospective cohorts, we investigated associations of prediagnosis leisure-time physical activity (LTPA) with all-cause and lung cancer-specific mortality among incident lung cancer patients.

METHODS: Using self-reported data on regular engagement in exercise and sports activities collected at study enrollment, we assessed metabolic equivalent hours (MET-h) of prediagnosis LTPA per week. According to the Physical Activity Guidelines for Americans, prediagnosis LTPA was classified into inactivity, less than 8.3 and at least 8.3 MET-h per week (the minimum …

Sex-Based Differences In Functional Brain Activity During Working Memory In Survivors Of Pediatric Acute Lymphoblastic Leukemia, Kellen Gandy, Matthew A Scoggins, Nicholas Phillips, Ellen Van Der Plas, Slim Fellah, Lisa M Jacola, Ching-Hon Pui, Melissa M Hudson, Wilburn E Reddick, Ranganatha Sitaram, Kevin R Krull

2020-Current year OA Pubs

BACKGROUND: Long-term survivors of pediatric acute lymphoblastic leukemia are at elevated risk for neurocognitive deficits and corresponding brain dysfunction. This study examined sex-based differences in functional neuroimaging outcomes in acute lymphoblastic leukemia survivors treated with chemotherapy alone.

METHODS: Functional magnetic resonance imaging (fMRI) and neurocognitive testing were obtained in 123 survivors (46% male; median [min-max] age = 14.2 years [8.3-26.5 years]; time since diagnosis = 7.7 years [5.1-12.5 years]) treated on the St. Jude Total XV treatment protocol. Participants performed the n-back working memory task in a 3 T scanner. Functional neuroimaging data were processed (realigned, slice time corrected, normalized, …

Seasonal Phenology And Colony Longevity Patterns In A Predatory Social Wasp, David T. Rankin, Kevin J. Loope, Erin E. Wilson-Rankin

Western North American Naturalist

Social wasps play critical ecological roles in an ecosystem, providing a diversity of services and some disservices. Yellowjacket wasps (Vespula spp.) in particular are well known for shaping arthropod communities via predation and competition for resources. In part due to their sociality and large colony sizes, Vespula can have a profound ecological impact on local communities. Such effects can be magnified when colonies exhibit a perennial life history, in which a colony will overwinter, persist for more than one year, and become orders of magnitude larger in size compared to typical annual colonies. Despite growing interest in the factors …

The Impact Of Board And Hotel Characteristics On Biodiversity Reporting: Market Diversification As A Moderator, Edzuwyn F. B. H. Mahyuddin, Mohammad Iranmanesh, Azlan Amran, Behzad Foroughi

Research outputs 2014 to 2021

Purpose: This study aims to explain how board and hotel characteristics affect biodiversity reporting and to test the moderating effect of market diversification.

Design/methodology/approach: The annual reports of 105 hotels were examined for the period between 2016 and 2017 to analyse these hotels’ biodiversity reporting using content analysis. The partial least squares technique was used to test the proposed relationships.

Findings: The results show that the number of board members who are also on the corporate social responsibility committee, number of board members who are in environmental organizations, the star rating of the hotel, hotel size and hotel location have …

Thermal And Hormonal Effects On Gene Expression And Development In The Red-Eared Slider Turtle, Rosario A. Marroquin-Flores

Theses and Dissertations

Sex determination refers to the process by which cues from genes (genotypic sex determination) or environmental conditions (environmental sex determination) trigger bipotential gonads to develop into either ovaries or testes. Temperature-dependent sex determination (TSD) is a well-studied form of environmental sex determination in reptiles. The red-eared slider turtle (Trachemys scripta elegans) exhibits a form of TSD where cool incubation temperatures produce males and warm incubation temperatures produce females. In species with TSD, gonadal differentiation is regulated by network of genes and hormones that induce male or female development. TSD is most frequently studied in the laboratory using constant male and …

Cognitive Biases In Perfectionism: Attention Bias And Memory Bias For Perfectionism-Relevant And Negative Stimuli, Elizabeth Mary Marsh

Theses and Dissertations

Research suggests there are biases that affect cognitive processes such as attention and memory in affective disorders (Everaert et al., 2020; Grant et al., 2020) and traits associated with these disorders, such as perfectionism (Besser et al., 2008; Howell et al., 2016; Tonta et al., 2019). However, very limited research exists on the relationship between attention and memory bias in perfectionism. The aim of the current study was to examine to what extent cognitive biases exist and how they are related in perfectionism. I combined a dot probe task to measure attention bias with a recognition task to measure memory …

Cetacean Strandings In The Us Pacific Northwest 2000–2019 Reveal Potential Linkages To Oceanographic Variability, Amanda J. Warlick, Jessica L. Huggins, Dyanna M. Lambourn, Deborah A. Duffield, Dalin Nichole D'Alessandro, James M. Rice, John Calambokidis, M. Bradley Hanson, Joseph K. Gaydos, Multiple Additional Authors

Biology Faculty Publications and Presentations

Studying patterns in marine mammal stranding cases can provide insight into changes in population health, abundance, and distribution. Cetaceans along the United States West coast strand for a wide variety of reasons, including disease, injury, and poor nutritional status, all of which may be caused by both natural and anthropogenic factors. Examining the potential drivers of these stranding cases can reveal how populations respond to changes in their habitat, notably oceanographic variability and anthropogenic activities. In this study, we aim to synthesize recent patterns in 1,819 cetacean strandings across 26 species in the Pacific Northwest from 2000 to 2019 to …

Mixed Feelings: Identity Development Of Biracial People, Ronald Ferguson

Great Plains Sociologist

Multiracial people traditionally have been categorized as monoracial, thus creating limitations to their identity development (Gibbs 1987; Davis 1991). However, recent societal shifts concerning race have left mixed race individuals with an array of racial identity choices (Huffman 1994; Townsend et al. 2012). To explore such a phenomenon, this study consisted of in-depth interviews with 15 adult Biracial respondents on questions surrounding their experiences as a mixed-race person. The results indicate that Biracial persons come to develop a variety of distinctive racial identities ranging from monoracial to Multiracial. Additionally, the respondents identified three distinct stages in their development of a …

Book Reviews, Florida Historical Society

Florida Historical Quarterly

THE RED HILLS OF FLORIDA, 1528-1865, by Clifton Paisley, reviewed by Michael G. Schene; THE WILDERNESS COAST: ADVENTURES OF A GULF COAST NATURALIST, by Jack Rudloe, reviewed by Jesse Earle Bowden; JOHN KNIGHT: A PUBLISHER IN A TUMULTUOUS CENTURY, by Charles Whited, reviewed by Paul S. George; THE KING SITE: CONTINUITY AND CONTACT IN SIXTEENTH -CENTURY GEORGIA, edited by Robert L. Blakely, reviewed by Ann F. Ramenofsky; SOLDIERS BLUE AND GRAY, by James I. Robertson, Jr., reviewed by Richard M. McMurry; LIFELINE OF THE CONFEDERACY: BLOCKADE RUNNING DURING THE CIVIL WAR, by Stephen R. Wise, reviewed by Howard Jones; THE …

Book Reviews, Florida Historical Society

Florida Historical Quarterly

ST. PETERSBURG AND THE FLORIDA DREAM, 1888-1950, by Raymond Arsenault, reviewed by Rodney E. Dillon, Jr.; PURSUITS OF HAPPINESS: THE SOCIAL DEVELOPMENT OF EARLY MODERN BRITISH COLONIES AND THE FORMATION OF AMERICAN CULTURE, by Jack P. Greene, reviewed by Darrett B. Rutman; BETWEEN THE DEVIL AND THE DEEP BLUE SEA: MERCHANT SEAMEN, PIRATES, AND THE ANGLO-AMERICAN MARITIME WORLD, 1700-1750, by Marcus Rediker, reviewed by Christopher Ward; WAR AND SOCIETY IN REVOLUTIONARY AMERICA: THE WIDER DIMENSIONS OF CONFLICT, by Don Higginbotham, reviewed by David T. Morgan; THE LIFE OF ANDREW JACKSON, by Robert V. Remini, reviewed by Richard B. Latner; WITHIN …

Less Light, Better Bite: How Ambient Lighting Influences Taste Perceptions, Sarah Lefebvre, Laura Boman, Jonathan Hasford

Faculty & Staff Research and Creative Activity

Atmospheric factors within a retail environment provide efficient and effective methods for influencing customer behavior. Drawing on the concept of sensory compensation, this research investigates how ambient lighting influences taste perceptions. Three studies demonstrate that dim lighting enhances taste perceptions. The results of Studies 1a and 1b provide support that low lighting positively influences consumers' perceived taste of single taste dimension foods (e.g., sweet). Study 2 shows the number of taste dimensions (e.g., sweet vs. sweet and salty) stimulated serves as a boundary condition, attenuating the significant effect of dim lighting on taste perceptions.

Chapter 19 - Bacteria, Janice M. Glime

Bryophyte Ecology Volume 2: Bryological Interaction

Explore the contents of Bryophyte Ecology, Volume 2, Chapter 19 - Bacteria by clicking the links above. For the Contents section of this ebook, as well as Volumes 1 through 5, please visit the Bryophyte Ecology Main Page.

Ebook sponsored by Michigan Technological University and the International Association of Bryologists.

Implementation Of Secondary And Tertiary Treated Wastewater In Concrete Manufacturing, Amany G. Micheal Prof., Haidy Abd El Salm, Gouda Ghanem Prof.

Centre for Advanced Materials

Water scarcity is a problem that faces many regions. In a developing and arid country like Egypt, the need for freshwater is exponentially increasing. This research is an evaluation of the recycled wastewater to be used in concrete manufacturing. The treated wastewater is blended with potable water with percentages of 25%, 50%, and 100%. The mixture of the two types of water is used in concrete mixing and curing. Control specimens with pure potable water are cast for comparison. The setting time for Ordinary Portland Cement is tested using the different water mixes. The hardened concrete is tested in compression …

Spatial And Temporal Variation In Growth Rate Of Blue Rockfish (Sebastes Mystinus) In Nearshore Central California Determined Using A Physiological Biomarker, Ellie M. Brauer

Master's Theses

Identifying areas of high fish population productivity is crucial for protecting habitats essential to fish growth and reproduction and, ultimately, for achieving sustainable fisheries. Historically, evaluations of habitat quality have relied heavily on linking spatial variation in fish abundance to environmental parameters such as substrate category, depth, or bathymetry. That approach, however, assumes that areas of high fish abundance best support growth and reproduction of a species and thus may fail to detect spatial or temporal variation in population attributes, such as somatic growth rate, which can be central to recruitment success and survival. In this study, we employed a …