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Trophic Structure Of Rocky Intertidal Communities In Contrasting High-Latitude Environments, Danielle Siegert

Marine Biology

Coastal ecosystems in high latitudes are increasingly impacted by glacial melt and river discharge due to climate change. One way to understand ecosystem responses to these stressors is assessing trophic relationships. The goal of this study was to better understand how hydrographic conditions influence trophic structure in high-latitude rocky intertidal systems. I compared the trophic structure of rocky intertidal assemblages in two regions in the northern Gulf of Alaska that comprise the same regional species pool but are hydrographically distinct, one glacially influenced and one primarily marine influenced. Common macroalgal and invertebrate taxa, as well as particulate organic matter (POM) …

Thiamine Deficiency Causes Long-Lasting Neurobehavioral Deficits In Mice, Hui Li, Hong Xu, Wen Wen, Liying Wu, Mei Xu, Jia Luo

Pharmacology and Nutritional Sciences Faculty Publications

Thiamine deficiency (TD) has detrimental effects on brain health and neurobehavioral development, and it is associated with many aging-related neurological disorders. To facilitate TD-related neuropsychological studies, we generated a TD mouse model by feeding a thiamine-deficient diet for 30 days, followed by re-feeding the control diet for either one week or 16 weeks as recovery treatment. We then performed neurobehavioral tests in these two cohorts: cohort of one week post TD treatment (1 wk-PTDT) and 16 weeks post TD treatment (16 wks-PTDT). The TD mice showed no significant difference from control in any tests in the 1 wk-PTDT cohort at …

Decision Agriculture, Abdul Salam, Usman Raza

Faculty Publications

In this chapter, the latest developments in the field of decision agriculture are discussed. The practice of management zones in digital agriculture is described for efficient and smart faming. Accordingly, the methodology for delineating management zones is presented. Modeling of decision support systems is explained along with discussion of the issues and challenges in this area. Moreover, the precision agriculture technology is also considered. Moreover, the chapter surveys the state of the decision agriculture technologies in the countries such as Bulgaria, Denmark, France, Israel, Malaysia, Pakistan, United Kingdom, Ukraine, and Sweden. Finally, different field factors such as GPS accuracy and …

Seasonal Variation In Nutritional Biomarkers And Fecal Cortisol Concentrations In A Northern Population Of Snowshoe Hares, Claire Kornet Montgomerie

Biological Sciences

Blood biomarkers indicative of nutritional status, fecal cortisol metabolite concentrations and an established body condition index (BCI), were collectively examined from snowshoe hares(Lepus americanus) inhabiting northern Alaska in 2018, during five ecologically significant times of year. As a novel approach to increase our understanding of the effects of diet and predation pressure on hare physiology, I addressed how these markers were associated with seasonal timing of energetic demands and adult survival rates. Mean decreases in concentrations of total protein (TP), blood urea nitrogen (BUN), hematocrit (HCT) and glucose during spring and autumn, suggest that snowshoe hare nutritional status decreased during …

The Care And Management Of Children And Young People With Ataxia Telangiectasia Provided By Nurses And Allied Health Professionals: A Scoping Review Protocol, M Khan, E Cassidy, T Parkin, A Wallace, L Bunn, Ateam Collaborative, Kath Donohue

School of Health Professions

This scoping review aims to systematically identify and map the type, range, scope and content of published and unpublished studies, reviews, guidelines, guidance documents and practice documents concerning nursing and allied health care and management of children and young people with Ataxia Telangiectasia.

Environmental Impacts On Reproductive Responses Of Pacific Walruses (Odobenus Rosmarus Divergens) And Subsistence Users Of St. Lawrence Island, Jenell T. Larsen Tempel

Fisheries

An interdisciplinary approach is used in understanding change and resiliency in St. Lawrence Island (SLI) resources and resource users throughout this dissertation. Historically SLI inhabitants have relied on the Pacific walrus (Odobenus rosmarus divergens) for their survival and this resource is still highly valued for cultural and dietary purposes. The responses of Pacific walruses and SLI subsistence users to environmental change was analyzed. In walruses, reproductive capacity was analyzed using an anatomical approach as well as reproductive plasticity which was determined using a physiological approach to characterize their estrus cycle. A suite of anatomical measurements were developed to characterize reproductive …

Long-Term Shifts In Community Structure, Growth, And Relative Abundance Of Nearshore Arctic Fishes: A Response To Changing Environmental Conditions, Justin T. Priest

Fisheries

Environmental conditions influence the presence, species composition, abundance, and growth of fish species in the nearshore Arctic ecosystem. With ongoing shifts in Arctic conditions due to climate change, how fish communities and individual species respond to such changes to environmental variability more broadly is unknown. This study analyzed catch and length data from a long-term fish monitoring project near Prudhoe Bay, Alaska, 2001-2018, to quantify the effects of environmental variables on the overall fish community and on the juveniles of two important whitefishes, Arctic Cisco Coregonus autumnalis and Broad Whitefish Coregonus nasus. Abundance data (n = 1.78 million fish) from …

Temporal And Size-Based Patterns In Juvenile Sablefish Energy Allocation And Diet, Matthew W. Callahan

Fisheries

A recent marine heatwave in the Gulf of Alaska caused depressed growth, poor body condition, and low survival in many fish species, but juvenile sablefish (Anoplopoma fimbria) thrived. These fast-growing piscivores are the target of a valuable commercial fishery in Alaska as adults and have historically shown high variability in recruitment. The first winter is a period of nutritional stress and high mortality for many fish species and first winter survival may dictate year class strength, but the importance of the first winter for juvenile sablefish is understudied. We examined juvenile sablefish energy storage, growth, and diet during their first …

Improving The Sustainability And Mitigating Environmental Impacts Of Grazed Grassland, H. J. Di, K. C. Cameron

IGC Proceedings (1977-2023)

No abstract provided.

Effect Of Peat On The Soil Physical Properties, Jianyu Cui, Yajia Liu, Kangguo Mu, Xiaoqing Zhang, Lin Hu

IGC Proceedings (1977-2023)

No abstract provided.

Effects Of Alfalfa Stand Age On Rhizosphere Soil Phosphorus In Saline Soil, Wenxing Gao, Zhiyu Zhou, Lili Zhang, Bin Ma, Gang Zhang

IGC Proceedings (1977-2023)

No abstract provided.

Effect Of Host-Plant Species On The Survival, Adult Longevity And Fertility Of Predatory Bug, Macrolophus Caliginosus Wagner [Hemiptera: Miridae, عبد الجليل حمدان

Hebron University Research Journal-A (Natural Sciences) - (مجلة جامعة الخليل للبحوث- أ (العلوم الطبيعيه

Two laboratory experiments were carried out under controlled conditions. First expperiment was to study the development and survival of nymphs of Macrolophus caliginnosus Wagner, when offered clean leaf-discs of tobacco, eggplant, tomato, pepper or Pelargonium peltatium only. The second experiment was to study the adult longevity and fertility of M. caliginosus offered greenhouse whitefly Trialeurodes vaporariorum (Westwood) (GHWF), on different host-plant. Although newly hatched M. caliginosus nymphs did not survive on plant sap alone, adults could live and even produce offspring. However, when M. caliginosus offered these plants as oviposition sites and fed on T. vaporariorum infestation, the intrinsic rate …

Effects Of Nitrogen Fertilizers On Growth And Turf Quality Of Kentucky Bluegrass, Yuling Deng, Yan Peng, Yukuan Wang

IGC Proceedings (1977-2023)

No abstract provided.

Change In Soil Nh4+‐N And No3- Under Different Land Use Types In The Longzhong Part Of Loess Plateau, Ding Guo, Xiaoyu Dong, Xiaodong Li, Xudong Li, Hua Fu

IGC Proceedings (1977-2023)

No abstract provided.

Litterfall Deposition Along An Altitude Gradient, Northeast Mexico, Humberto González, T. G. Domínguez, I. C. Silva, M. V. Gómez, R. G. Ramírez

IGC Proceedings (1977-2023)

No abstract provided.

Effect Of Nitrogen Fertilisation And Cutting Frequency On The Yield And Regrowth Of Panicum Maximum Jacq In West Cameroon, E. Tedonkeng Pamo, B. Boukila, C. N. Meduke, F. Tendonkeng

IGC Proceedings (1977-2023)

No abstract provided.

Sward Height Effect On Emission Of Nh3 From Broiler Manure Applied To Dactylis Glomerata L., Shabtai Bittman, A. K. Lau, D. E. Hunt, C. G. Kowalenko

IGC Proceedings (1977-2023)

No abstract provided.

2020 Rebel Football Guide, Ole Miss Athletics. Men's Football

Media Guides and Fact Books

No abstract provided.

Predictors Of Social Distancing And Mask-Wearing Behavior: Panel Survey In Seven U.S. States, Plamen Nikolov, Andreas Pape, Ozlem Tonguc, Charlotte Williams

Economics Faculty Scholarship

This paper presents preliminary summary results from a longitudinal study of participants in seven U.S. states during the COVID-19 pandemic. In addition to standard socio-economic characteristics, we collect data on various economic preference parameters: time, risk, and social preferences, and risk perception biases. We pay special attention to predictors that are both important drivers of social distancing and are potentially malleable and susceptible to policy levers. We note three important findings: (1) demographic characteristics exert the largest influence on social distancing measures and mask-wearing, (2) we show that individual risk perception and cognitive biases exert a critical role in influencing …

2020 Commencement, Harding University

Commencement Programs

Program for the Harding University Commencement orignially scheduled for August 15. The ceremony was posponed until November 2020 due to the COVID-19 pandemic.

Commencement Speaker: Michael L.James

Engineering Natural Competence Into The Fast-Growing Cyanobacterium Synechococcus Elongatus Utex 2973, Kristen Elizabeth Wendt

Arts & Sciences Graduate Student Theses and Dissertations

Synechococcus elongatus UTEX 2973 is the fastest growing cyanobacterium discovered to date. Using water, carbon dioxide, and light alone, this organism can double in 1.5 hours under optimal conditions. The accelerated doubling exhibited by Synechococcus 2973 makes it a prime candidate to serve as a model photoautotrophic system. However, Synechococcus 2973 lacks one highly desirable feature: it cannot undergo natural transformation. This thesis seeks to engineer this capacity into this fast-growing system in order to create an organism that is both fast growing and naturally competent. Synechococcus 2973 is a unique platform because it is >99% genetically identical to another …

Characterizing The Relationship Between Gut Microbiota Development And Healthy Growth, Hao-Wei Chang

Arts & Sciences Graduate Student Theses and Dissertations

Childhood undernutrition accounts for more than 45% of deaths in children under the age of ve. Children who receive current therapeutic treatment and survive often have long-term complications. These survivors usually exhibit stunted growth, impaired cognitive development and are at risk for immune dysfunction, obesity and associated metabolic abnormalities. Recent studies have revealed a causal relationship between development of the gut microbiota and healthy growth. However, standard therapeutic foods were not designed with a consideration of the developmental biology of the gut microbial community and have limited ef cacy in repairing the perturbed microbiota of undernourished children.We hypothesized that repairing …

Influence Of Chaperone-Like Activity Of Caseinomacropeptide On The Gelation Behaviour Of Whey Proteins At Ph 6.4 And 7.2, Sophie J. Gaspard, Prateek Sharma, Ciarán Fitzgerald, John T. Tobin, James A. O'Mahony, Alan L. Kelly, Andre Brodkorb

Nutrition, Dietetics, and Food Sciences Faculty Publications

The effect of caseinomacropeptide (CMP) on the heat-induced denaturation and gelation of whey proteins (2.5–10%, w/v) at pH 6.4 and 7.2, at a whey protein:CMP ratio of 1:0.9 (w/w), was investigated using differential scanning calorimetry (DSC), oscillatory rheology (90 °C for 20 min) and confocal microscopy. Greater frequency-dependence in the presence of CMP suggested that the repulsive interactions between CMP and the whey proteins affected the network generated by the non-heated whey protein samples. At pH 6.4 or 7.2, CMP increased the temperature of denaturation of β-lactoglobulin by up to 3 °C and increased the gelation temperature by up to …

A Mega-Analysis Of Personality Prediction: Robustness And Boundary Conditions, Emorie Danielle Beck

Arts & Sciences Graduate Student Theses and Dissertations

Decades of research suggest that personality is an important and robust predictor of life outcomes. However, previous investigations of personality-outcome associations have not adequately accounted for reverse causality and selection bias nor have they examined the boundary conditions of the effects, which has left the robustness conditions of personality-outcome associations unknown. The present study examines the robustness and boundary conditions of personality prediction using 14 personality characteristics to predict 14 health, social, education/work, and societal life outcomes across eight different person- and study-level moderators in 10 longitudinal panel studies in a mega-analytic framework coupled with propensity score matching to control …

Sustainable Diets For Planetary Health: A Study Of Indigenous Based Agri-Food Systems In A Community Of The Central Highlands Of Ecuador, Carlos Andres Gallegos-Riofrio

Arts & Sciences Graduate Student Theses and Dissertations

In order to explore the psychosocial and agroecological dimensions of sustainable diets and their roles in the rural Andean community of Caliata in the Ecuadorian highlands, I conducted a community-centered participatory mixed-methods study. Thirty-nine focus groups and ten key informant interviews were conducted, recorded, translated, transcribed, and analyzed using three-stage coding. The information was triangulated using participant observation, local records, and descriptive statistics from a survey of 57 female household heads, which included a modified 48-hour dietary recall module. Rural appraisal research assessed agroecological dimensions. Ten purposively selected sites were studied alongside local informants in order to obtain diversity indexes …

Analyzing The Longevity Of Sperm Within The Female Japanese Quail By Assessing Sperm Penetration Of The Perivitelline Layer Under Optimal And Suboptimal Conditions., Garret G. Ashabranner, Joey L. Bray

Electronic Theses and Dissertations

After mating, birds have the ability to store semen within the female reproductive tract. The sperm storage tubules will store and subsequently release semen to travel up the oviduct. Sperm cells that make the trek up the oviduct have a chance to fertilize the ovum. These sperm cells will bind to the perivitelline layer of the ovum and hydrolyze a hole in the perivitelline layer, where it has the possibility to fertilize the female sex cell. Analyzing the number of penetration points on the perivitelline layer is an effective way to analyze reproductive efficiency. Many environmental factor has its effect …

Comparison Of Health Literacy Among Academic Librarians. Case Study: Tehran Of Medical Sciences And Azad Universities Librarians, Hamid Ghazizadeh

Library Philosophy and Practice (e-journal)

Objective: Promoting health and determining the level of health literacy is one of the most important indicators in each society. This study was conducted with the aim of evaluating the health literacy status among librarians of Azad universities and medical sciences regarding the impact of librarians on their individual health and their role in disseminating health information that promotes health. This research is a descriptive survey. The statistical population consists of 90 librarians working in the libraries of the Islamic Azad universities and medical sciences in Tehran. The data were collected using TOFHLA's functional health literacy questionnaire in December …

Na Compound Fertilizer Promotes Growth And Enhances Drought Resistance Of Desert Plants, Xiangrui Zhou, Lijun Yue, Chunmei Wang, Suomin Wang

IGC Proceedings (1977-2023)

No abstract provided.

How Do Native And Improved Grasses Affect Above‐Ground Production And Soil Organic C?, Walter D. Willms, X. Hao, Guodong Han, Mengli Zhao, H. Douwes

IGC Proceedings (1977-2023)

No abstract provided.

Intensive Grazing Leads To Degradation And Spatial Homogenization Of Topsoils In Two Major Steppetypes In Inner Mongolia, P. R. China, M. Wiesmeier, M. Steffens, A. Kölbl, I. Kögel-Knabner

IGC Proceedings (1977-2023)

No abstract provided.