Digital Commons Network^™

Natural Arches Of Kentucky, Steven L. Martin

Special Publication--KGS

This pamphlet provides general information about where natural arches occur in Kentucky, the definition of a natural arch, and how natural arches form. The taxonomy of natural arches is provided along with how the span, clearance, and width of arches are measured.

The Kentucky Arch Trail is a compilation of 40 selected natural arches accessible by trail or along roads across the state for the public to enjoy. Instructions and directions for the Arch Trail are included in the pamphlet. An interactive list of arches can be found at https://kgs.uky.edu/kygeode/services/arches/list.htm

More general information about Kentucky's natural arches can be found …

Executive Committee - Agenda, 3/4/2025, Academic Senate

Academic Senate Agendas

No abstract provided.

Raw Data For Violations Of Coordination: Exploring Metastable Diborides For Energy Storage, Michael Yeung

Chemistry Department Faculty Scholarship

The ideal aeronautical solid-state fuel should possess a high density (more thrust per Newton’s Third Law), high gravimetric heat of combustion (more energy for less weight), and a high volumetric heat of combustion (more room for mission-critical items). In this work, manganese diboride (MnB2) demonstrates a high density of 5.3 g/cm3, a high gravimetric heat of combustion of 38.30 kJ/g, and the highest volumetric heat of combustion of any known fuel of 202.99 kJ /cm3. When compared to the currently used fuel in Space Shuttle rocket boosters and the Space Launch System, aluminum metal, MnB2 represents a 100% increase in …

On Static Equilibrium State Of An Electron-Positron Pair Interacting By Electrostatic And Magnetic Forces, Polievkt Perov, Natasha Perova-Mello

College of Arts & Sciences Faculty Works

An electron-positron pair can be in static equilibrium where the magnetic torque is zero and the attractive Coulomb’s force between unlike charges and the repelling force between the spin magnetic moments of these two particles balance each other out. An electron-positron pair near the equilibrium position can be modeled as an oscillator consisting of two masses on a spring. The calculations of the equilibrium distance, the effective “electromagnetic spring constant”, and the frequency of oscillations of an electron-positron pair near the equilibrium are presented. The calculations might be useful for the students in their studies of electricity, magnetism, and particle …

March 2025 Faculty Senate Packet, University Of Nebraska At Kearney Faculty Senate

Faculty Senate Packets

No abstract provided.

Relationship Between Perceived Employability And Employability Skills And Attributes Among Business Graduates, Wise Mainga, Marlo B. Murphy-Braynen, Daniel Thompson, Bernadette Robins

International Journal for Business Education

Research has identified the importance of perceived employability in enhancing new graduates’ job search and finding initial employment. Students with high perceived employability are likely to have high self-confidence and perseverance in their job search, which may lead to early initial employment post-graduation. Perceived employability affects how new graduating students approach competitive and congested labour markets and is seen as one of the most important predictors of a new graduate getting and retaining a job. However, few studies have examined the relationship between perceived employability and disaggregated employability skills and attributes. This study examines the above relationship, arguing that not …

Model Explanations For Gender And Ethnicity Bias Mitigation In Ai-Generated Narratives, Martha Otisi Dimgba

Dissertations and Theses

Large Language Models (LLMs) are increasingly utilized in diverse applications, ranging from professional content creation to decision-making systems. However, their outputs often amplify the biases present in their training data, perpetuating stereotypes and reinforcing societal inequities, particularly regarding gender and ethnicity. Such biases can cause tangible harm, especially for underrepresented groups, and require awareness and effective mitigation strategies.

This work explores gender and ethnicity representation in narratives created by generative AI describing 25 occupational fields defined by the U.S. Bureau of Labor Statistics. We examine three large language models (LLMs)--Llama 3.1 70B Instruct, Claude 3.5 Sonnet, and GPT 4.0 Turbo. …

President Chilton Visits Boys And Girls Club Of Souhegan Valley, Amy Slattery

UNH Today Archive

No abstract provided.

Towards Greater Standardisation In Benthic Trait Research To Support Application To Environmental Management, Irene Susini, Heidi M. Tillin, Louise Anderson, Craig M. Robertson, Sian Rees, Kerry L. Howell

School of Biological and Marine Sciences

Functional trait-based approaches have enriched our understanding of key ecological processes such as species assembly and biodiversity loss. This focus on traits, rather than taxonomy, promotes comparability across spatial and organisational scales, further enabling the application of trait-based methodologies to systems where species identity is difficult to recognise. Among other issues, however, the lack of standardisation is preventing trait-based approaches from unlocking their true potential. Here, 407 published articles (peer-reviewed and grey literature) are reviewed alongside the Biological Traits Information Catalogue (BIOTIC) to document inconsistencies in the understanding and use of trait terminology in the context of marine benthic ecosystems. …

Addressing Health Disparities In Hematologic Malignancies: From Genes To Outreach, Christopher R Flowers, Rachel W Anantha, Veronica Leautaud, Pinkal Desai, Chancellor E Donald, Michelle A T Hildebrandt, Jean L Koff, Rulla M Tamimi, Wendy Cozen, Chijioke Nze, Ari M Melnick

Faculty, Staff and Student Publications

This review underscores our shared responsibility to champion multidimensional strategies rooted in basic and translational science, community involvement, and societal responsiveness for a meaningful impact. Unifying themes include the need to enhance collaborative infrastructure to engage laboratory researchers, epidemiologists, data scientists, clinicians, patients, community leaders, and policymakers; patient-level support services; outreach, education, and navigation for patients at the community level; recruitment and retention of underrepresented groups in the healthcare and research workforce; and funding for these efforts.

Learning Directed Acyclic Graphs For Ligands And Receptors Based On Spatially Resolved Transcriptomic Data Of Ovarian Cancer, Shrabanti Chowdhury, Sammy Ferri-Borgogno, Peng Yang, Wenyi Wang, Jie Peng, Samuel C Mok, Pei Wang

Faculty, Staff and Student Publications

To unravel the mechanism of immune activation and suppression within tumors, a critical step is to identify transcriptional signals governing cell-cell communication between tumor and immune/stromal cells in the tumor microenvironment. Central to this communication are interactions between secreted ligands and cell-surface receptors, creating a highly connected signaling network among cells. Recent advancements in in situ-omics profiling, particularly spatial transcriptomic (ST) technology, provide unique opportunities to directly characterize ligand-receptor signaling networks that power cell-cell communication. In this paper, we propose a novel statistical method, LRnetST, to characterize the ligand-receptor interaction networks between adjacent tumor and immune/stroma cells based on ST …

Extended High-Frequency Hearing And Suprathreshold Neural Synchrony In The Auditory Brainstem, Jithin Raj Balan, Sri Mishra, Hansapani Rodrigo

School of Mathematical & Statistical Sciences Faculty Publications

Elevated hearing thresholds in the extended high frequencies (EHFs) (>8 kHz) are often associated with poorer speech-in-noise recognition despite a clinically normal audiogram. However, whether EHF hearing loss is associated with disruptions in neural processing within the auditory brainstem remains uncertain. The objective of the present study was to investigate whether elevated EHF thresholds influence neural processing at lower frequencies in individuals with normal audiograms. Auditory brainstem responses (ABRs) were recorded at a suprathreshold level (80 dB normal hearing level) from 45 participants with clinically normal hearing. The recording protocol was optimized to obtain robust wave I of the …

Mistaken About Mistakes: Error Analysis As An Untapped Tool For Law School Success, Elissa Jacob

Pace Law Review

Mistakes: everyone makes them, perhaps the new law student more than most. But why do our students continue to make the same errors despite our concerted efforts to prevent them? This article explores this question and provides ideas on how to utilize mistakes to fuel the learning process. Science has proven that the human brain is hardwired to benefit from errors. However, the psychological effects of failing, cultural systems, and the American educational system are frequent barriers to this biological process.

To overcome these obstacles and most effectively employ error analysis, I propose a three-step model. First, professors must lay …

Integrating Information And Communication Technologies To Enhance High School Students’ Research Capabilities, Kareen Marie E. Palines, Jenie Mary U. Moreno, Aron G. Tatlonghari, Ruth Ortega-Dela Cruz

Journal of Educational Research and Practice

Integrating information and communication technologies into research curricula can help students become more proficient researchers. Students need strong research capabilities in the modern educational environment to handle the challenges of information access and analysis. This article reveals the results of a study that explored the use of Science and Technology Academic and Research-Based Openly Operated Kiosk Stations (STARBOOKS), a program developed by the Department of Science and Technology (DOST) for use in public schools in the Philippines. The study investigated the effect of this technology on 36 purposefully selected Grade 9 students working on science investigatory projects in the Science, …

A Time For Change- Issues Arising From The Xvii International Grassland Congress Developed World Viewpoint, Barney Foran

IGC Proceedings (1977-2023)

A number of major issues raised at the conference, if they are accepted by farmers and grassland scientists, will mean a major realignment of both the philosophy and practice of grassland science. The first of these is future world trade flows and a bleak prognosis for traded livestock products. Jf the developed world accepts that developing nations have to trade in order to develop, and trade in commodities where they have a cost advantage, this suggests that bulk production of livestock commodities will decline ln total. Thus grassland exports will have to concentrate on high value niche markets. This poses …

Congress Outlook From The Developing Countries' Perspective, Bede N. Okigbo

IGC Proceedings (1977-2023)

In this XVII International Grassland Congress, which is now successfully drawing to a close, we are all very grateful for the opportunity to participate and enjoy the hospitality of our New Zealand and Australian hosts. Above everything else, we have benefited much more from attending than we have individually contributed to its success in various ways.

Water Balance And Soil Fertility Characteristics Of Brigalow (Acacia Harpophylla) Lands Before And After Forest Clearing, Paul A. Lawrence, B A. Cowie, D Yule, P J. Thorburn

IGC Proceedings (1977-2023)

A multidisciplinary study was undertaken to investigate the changes in catchment runoff, groundwater recharge and soil fertility after the complete removal of brigalow (Acacia harpophylla) forest for buffet grass pasture. Clearing brlgalow for pasture increased runoff amount by 21 mm/year; however, runoff represented a·· small (11-14%) component of the annual water balance. An increase in groundwater recharge immediately after clearing was not sustained once the pasture was established. Clearing did not alter the annual water balance, evapotranspiration taking 90% of annual rainfall, Clearing and burning• caused a flush of plant available N, P and K but this was …

Successional Dynamics Of An Acacia Savanna In Southern Africa, C. Richard Hurt, Richard I. Yeaton

IGC Proceedings (1977-2023)

Acacia-dominated savannas iii southern Africa are ·maintained by disturbance. Wheri ihese ecosystems are managed as pastoral systems, the disturbance regime is altered, • arid the· successional sequence proceeds to broad-leafed woodland. We examined changes in woody species composition over a soil catena, and used sliccessional stages within an acacia-dominated community to develop a Markov model of the dynamics of the system. We used this model to simulate 2 management scenarios and to make predictions · of associated community changes over time.

Deforestation In Pakistan, Inayat U. Chaudhry

IGC Proceedings (1977-2023)

Pakistan's economy is agricultural and pastoral. From 1150 to 1991 its forest cover declined from an estimated 28 million ha to 4,6 million ha and population increased from 1.2 to 112 million. rn addition to. increasing population, government irrigation projects for colonisation, in road of agriculture into forestry and construction of barrages over rivers caused deforestation. This has increased soil erosion, siltation of dams and the gap in production and demand of wood: biodiversity has been adversely affected and mangrove forests have degraded. Forestation has been carried out over 220 000 ha since 1947. A network of easily accessible nurseries, …

Animal Production From Tropical Semi-Arid Savannah Woodland In Subcoastal Queensland, Australia, H G. Bishop, H J. Chamberlain, R M. Dodt, T B. Hilder, G A. Lambert, E R. Anderson

IGC Proceedings (1977-2023)

Annual live-weight gain of steers grazing on virgin tropical semi­arid poplar box (Eucalyptus populnea) savannah woodland in subcoastal central Queensland fluctuated between 59 kg/head and 200 kg/head over a 7-year period. Average live-weight gain for the 7 years was 136 kg/head/year, which is above expected levels for this vegetation type. Reasons suggested for this animal performance are the use of a stocking rate more lenient than the district average and above-average winter rainfall received during the 7 years of this demonstration project. Removing trees doubled the pasture dry matter yield, which subsequently allowed a doubling of stocking rate …

Forage Production From In Situ Herbicide Treatment Of Semi-Arid Woodlands And Scrub Regrowth, A R. Murphy, C O. Love, G W. Fossett

IGC Proceedings (1977-2023)

The response of native pastures after stem injection of eucalypt woodlands with picloram-triclopyr herbicide in 1986 was Investigated at 2 locations in Queensland over 18 months, Treatments were fenced to exclude half the plots from grazing by cattle. At Rolleston (good rainfall) dry matter grass response from grazed and ungrazed plots was 2- to 3-fold more than in untreated plots 4-18 months after treatment. At Mundubbera (low rainfall) picloram-triclopyr gave 2- to 5-fold increases in grass dry matter 3-18 months in ungrazed plots and 3-9 months in grazed plots. At both sites plclorarn-triclopyr gave quicker nnd greater grass response than …

Evaluation Of Animal Productivity And Pasture Yield After Treatment Of Brigalow (Acacia Harpopylla) Regrowth With Tebuthiuron, G W. Fossett, P C. Venamore

IGC Proceedings (1977-2023)

Brigalow (Acacia harpophylla) regrowth was aerially treated with 2.0 kg/ha tebuthiuron (Graslan TM) at Blackwater, Australia in November 1989. Control of brigalow regrowth increased in grass production 2- fold, which resulted in dramatic animal live-weight gains. The live­weight advantage of steers grazing the tebuthiuron treated area was 31 kg/head compared with similar steers grazing the control paddock at similar stocking rates. After 20 months this advantage enabled 44% of stock to be marketed at premlum prices. A subset of steers implanted with a long-term hormonal growth promotant (HGP) (Compudose400™) and grazing the tebuthiuron-treated paddock recorded a 75 kg …

Competitive Effects Of Trees On Pasture Are A Function Of Rainfall Distribution And Soil Depth, J C. Scanlan, G M. Mckeon

IGC Proceedings (1977-2023)

A pasture production model was modified to account for the effect of tree water use on pasture production in woodlands of norJhern Australia. Simulation experiments with the model indicate that competition for water explains the effect of trees on pasture production. Trees compete for water most strongly (I) in shallow soils; (2) when tree roots are shallow; and (3) when intra-seasonal dry periods reduce the amount of water available for transpiration.

Deforestation In The Savanna Context: Problems And Benefits For Pastoralism, W H. Burrows

IGC Proceedings (1977-2023)

Deforestation is discussed from a savanna perspective, rather than in the usual rain forest connotation. Reasons for removing trees and shrubs from savannas are outlined with emphasis placed on the impacts that tree clearing has on livestock production. Other benefits and possible adverse consequences of removing woody plants are detailed. It is suggested that the importance of trees ln maintafning nutrient flows in grazed savanna may be overstated. Problems that arise from clearing trees from savannas often result from a lack of preclearing planning or post-clearing management, rather than the clearing operation Itself.

Deforestation For Pasture In The Humid Tropics: Is It Economically And Environmentally Sound In The Long Term?, E Adilson Serrao, C Uhl, D C. Nepstad

IGC Proceedings (1977-2023)

During the past 5 decades, the rate of tropical forest conversion has accelerated in response to economic pressures, population growth, technological development, and prpgrammes and incentives to open land for development. Deforestation rates rose substantially through the I 980s, and were highest in Africa ( 1.7% ), followed by Asia (1.4%) and Latin America (0.9%). The greatest extent of deforestation, however, was In Latin America, especially in the Amazon, where much of the deforestation was for pasture-based cattle development. Although forest conversion for ranching has been routinely criticised because of the ecological and socioeconomic implications associated with it, cattle herds …

A Legume Ley System In Australia's Semi-Arid Tropics, R L. Mccown, K Thiagalingam, T Price, P S. Carberry, R K. Jones, N P. Dagliesh, D.C I. Peake

IGC Proceedings (1977-2023)

A large part of the Australian continent is semi-arid and tropical. While extensive beef cattle grazing is the most significant agricultural industry in this region, there Is some potential for dryland cropping. There are strong economic and- ecological reasons for exploring the possibility of a no-till tropical ley system. Work at Katherine, Northern Territory, found that a ley system based on Stylosanthes hamata cv. Verano showed considerable promise based on both contributions to dry-season animal performance and nitrogen contribution to succeeding coarse grain crops. Subsequent research and development in the wetter Douglas-Daly district of the Northern Territory has demonstrated even …

Hardseededness Of Medicago Polymorpha Under Field Conditions In The Subhumid Mediterranean Zone Of Chile, Julia R. Avendano, Alejandro L. Del Pozo, Carlos M. Ovalle

IGC Proceedings (1977-2023)

To improve knowledge in the establishment and self-regeneration of medics grown in rotation with wheat in Chile, the long-term ambiental softening of medic seed is being studied. In March, (i) 72 samples of 100 pods each, were broadcast on the soil surface In plots of 20x20 cm, surrounded by a wood frame, and (ii) 12 samples were placed in a similar way, but the pods were buried at 1-2 ·cm. /11 sitr,, or field germination was recorded, and the germinated seeds destroyed. In (i), every 2 months during the first to fourlh softening season (SS), and in (ii), each March …

Role Of Gramineous Species In Cereal-Annual Legume Farming Systems, G N. Roberts, P G. Tow, E D. Carter

IGC Proceedings (1977-2023)

Three pasture types (volunteer annual grass+medic, grass-free medic and oat+volunteer grass+medic) were compared at 2 stocking rates (8.4 and 12.6 DSE) with grazing Merino wethers. The oat variety is resistnnt to both Gaeumannomyces graminis (take-all) and Heterodem avenae (cereal cyst nematode), important root diseases of cereals. Four harvests were taken during early winter. The oat + grass + medic pasture type had a faster growth rate and maintained higher levels of available pasture on all sampling occasions (July to September). The yields of the grass and medic components were significantly reduced in the oat+grass+medic treatment from the second harvest onwards. …

Digitaria Milanjiana Ley Pasture For Banana Cropping In Tropical North Queensland, Australia, T J. Hall, G D. Walduck, R W. Walker

IGC Proceedings (1977-2023)

The burrowing nematode (Radopholus similis) is a major economic pest of bananas in the wc;t tropics of Queensland. It is expensive to control, reduces banana yields and can reduce the economic life of a crop. Current pasture grasses cannot be used in leys because they are hosts to the nematode. Introduced pasture grasses (143 accessions) were evaluated for their environmental adaptation, burrowing nematode resistance, and weed control and erosion protection ability. Digitaria milanjiana CPI 59745 was the most successful accession and it was released as cultivar Jarra. Establishment methods for planting stolon material were developed.

Yields And Nitrogen Contents Of Maize Receiving Fertilizer Nitrogen Or After Alfalfa And Red Clover, M Collins

IGC Proceedings (1977-2023)

Two experiments compared alfalfa (Medicago sativa L.) and red clover(Trifolium pratense L.) genotypes for supplying N to an ensuing maize (Zea mays L.) crop. A non-fixing alfalfa genotype, which nodulates but fixes no N, served as a control crop. Nitrogen-fertilised maize received 0, 7S, ISO or 22S kg/ha of N annually as NH4NO3• Maize was seeded into I-year-old legume stands killed by N• (phosphono-methyl) glycine isopropylamine. Non-fixing alfalfa yielded 6 t/ha of forage in the first year compared with 9 t/ha or more for normal cultivars. Two-year mean maize grain yields after Dart alfalfa were 9.2 t/ha and …