Physical Sciences and Mathematics Commons^™

Biogeocenotechnology Of Restoration And Increase Of Efficiency For Degraded Pasture Ecosystems In Arid Regions Of Central Asia And Russia, Zebri Shamsutdinov, Nariman Shamsutdinov

IGC Proceedings (1993-2023)

No abstract provided.

Restoring Rain Use Efficiency To An Incised Upland Valley System In Namibia Using Filters And Ecosystem Management Understanding (Emu) Principles, K. Shamathe, H. J. R. Pringle, I. Zimmermann

IGC Proceedings (1993-2023)

No abstract provided.

Dark Iron-Catalyzed Reactions In Acidic And Viscous Aerosol Systems Efficiently Form Secondary Brown Carbon, Hind A. Al-Abadleh, Md Sohel Rana, Wisam Mohammed, Marcelo I. Guzman

Chemistry Faculty Publications

Iron-driven secondary brown carbon formation reactions from water-soluble organics in cloud droplets and aerosols create insoluble and soluble products of emerging atmospheric importance. This work shows, for the first time, results on dark iron-catalyzed polymerization of catechol forming insoluble black polycatechol particles and colored water-soluble oligomers under conditions characteristic of viscous multicomponent aerosol systems with relatively high ionic strength (I = 1–12 m) and acidic pH (∼2). These systems contain ammonium sulfate (AS)/nitrate (AN) and C3–C5 dicarboxylic acids, namely, malonic, malic, succinic, and glutaric acids. Using dynamic light scattering (DLS) and ultra high pressure liquid chromatography-mass spectrometry (UHPLC-MS), …

An Overview Of The Effect Of Bioaerosol Size In Coronavirus Disease 2019 Transmission, Marcelo I. Guzman

Chemistry Faculty Publications

The fast spread of coronavirus disease 2019 (COVID-19) constitutes a worldwide challenge to the public health, educational and trade systems, affecting the overall well-being of human societies. The high transmission and mortality rates of this virus, and the unavailability of a vaccine or treatment, resulted in the decision of multiple governments to enact measures of social distancing. Such measures can reduce the exposure to bioaerosols, which can result in pathogen deposition in the respiratory tract of the host causing disease and an immunological response. Thus, it is important to consider the validity of the proposal for keeping a distance of …

Thermal Time Requirements For Leaf Appearance Of Frontier Balansa Clover, D. P. Monks, D. J. Moot

IGC Proceedings (1993-2023)

No abstract provided.

The Effect Of Rapid Paddock Movement On Yearling Steer Weight Gain And Forage Condition In North‐Central Nebraska, Usa, D. G. Mickey Steward

IGC Proceedings (1993-2023)

No abstract provided.

Two Techniques To Measure Herbage Intake Of Grazing Dairy Cows, Mary Mcevoy, M. O'Donovan, Tommy M. Boland, Luc Delaby

IGC Proceedings (1993-2023)

No abstract provided.

The Effect Of Pre‐Grazing Herbage Mass On Milk Production And Of Dairy Cows In Mid‐Lactation, Mary Mcevoy, M. O'Donovan, Tommy M. Boland, Luc Delaby

IGC Proceedings (1993-2023)

No abstract provided.

Application Of A Small Unmanned Aerial System To Measure Ammonia Emissions From A Pilot Amine-Co2 Capture System, Travis J. Schuyler, Bradley Irvin, Keemia Abad, Jesse G. Thompson, Kunlei Liu, Marcelo I. Guzman

Chemistry Faculty Publications

The quantification of atmospheric gases with small unmanned aerial systems (sUAS) is expanding the ability to safely perform environmental monitoring tasks and quickly evaluate the impact of technologies. In this work, a calibrated sUAS is used to quantify the emissions of ammonia (NH₃) gas from the exit stack a 0.1 MWth pilot-scale carbon capture system (CCS) employing a 5 M monoethanolamine (MEA) solvent to scrub CO₂ from coal combustion flue gas. A comparison of the results using the sUAS against the ion chromatography technique with the EPA CTM-027 method for the standard emission sampling of NH_{3 …}

How Canadian Farmers Are Extending The Grazing Season--A Research Success Story, Duane H. Mccartney

IGC Proceedings (1993-2023)

No abstract provided.

Utilisation Of Near Infrared Spectroscopy To Optimise Productivity Of Grazing Animals In The Western Australian Rangelands, Peter Mccafferty, Gaye Krebs, Kevin Ho, Ken Dods, Kumara Mahipala

IGC Proceedings (1993-2023)

No abstract provided.

Intake And Apparent Digestibility Of Silages Obtained From Four Sunflower (Helianthus Annuus) Genotypes, Rogerio M. Mauricio, N. M. Rodriguez, L. C. Gonçalves, D. G. Jayme, J. A. S. Rodrigues, L. F. Sousa, W. G. Faria, G. O. Ribeiro

IGC Proceedings (1993-2023)

No abstract provided.

Effect Of Defoliation Frequency And Severity During Winter On Herbage Regrowth And Water‐Soluble Carbohydrate Content Of Perennial Ryegrass (Lolium Perenne L.) Dominant Swards, Julia M. Lee, D. J. Donaghy, P. Sathish, J. R. Roche

IGC Proceedings (1993-2023)

No abstract provided.

Evaluation Of The Productivity And Grazing Capacity Of Cool Season Grasses, H. A. Lardner, C. Ward, L. Froehlich, L. Zemlak

IGC Proceedings (1993-2023)

No abstract provided.

Development Of A Model Of Growth Of Grass/White Clover Swards For A Grassland Management Support System, A. Scott Laidlaw

IGC Proceedings (1993-2023)

No abstract provided.

Synthesis, Characterization, And Antiproliferative Activity Of Novel Chiral [Quinoxp*Aucl2]+ Complexes, Adedamola S. Arojojoye, R. Tyler Mertens, Samuel Ofori, Sean R. Parkin, Samuel G. Awuah

Chemistry Faculty Publications

Herein is reported the synthesis of two Au(III) complexes bearing the (R,R)-(–)-2,3-Bis(tert-butylmethylphosphino)quinoxaline (R,R-QuinoxP*) or (S,S)-(+)-2,3-Bis(tert-butylmethylphosphino)quinoxaline (S,S-QuinoxP*) ligands. By reacting two stoichiometric equivalents of HAuCl₄.3H₂O to one equivalent of the corresponding QuinoxP* ligand, (R,R)-(–)-2,3-Bis(tert-butylmethylphosphino)quinoxalinedichlorogold(III) tetrachloroaurates(III) (1) and (S,S)-(+)-2,3-Bis(tert-butylmethylphosphino)quinoxalinedichlorogold(III) tetrachloroaurates(III) (2) were formed, respectively, in moderate yields. The structure of (S,S)-(+)-2,3-Bis(tert-butylmethylphosphino)quinoxalinedichlorogold(III) tetrachloroaurates(III) (2) was further confirmed by X-ray crystallography. The antiproliferative activities of the two compounds were evaluated in a panel of cell lines and exhibited promising results comparable to auranofin and cisplatin with …

Integrated Management Of Feral Camels In Ngaanyatjarra Aboriginal Lands, Australia, Gordon Sanders, A. Knight

IGC Proceedings (1993-2023)

No abstract provided.

Effect Of Winter Closing Date And Spring Opening Date On The Dm Yield Of Perennial Ryegrass Cultivars, Emer Kennedy, M. O'Donovan, Mary Mcevoy

IGC Proceedings (1993-2023)

No abstract provided.

Effect Of Restricted Access Time To Pasture On Dairy Cow Milk Production, Grazing Behaviour And Dry Matter Intake, Emer Kennedy, M. O'Donovan

IGC Proceedings (1993-2023)

No abstract provided.

Sustainable Management Of Semi‐Arid Rangelands And Optimal Paddock Size‐-An Ecological‐Economic Modelling Analysis, O. Jakoby, M. F. Quaas

IGC Proceedings (1993-2023)

No abstract provided.

Grazing Systems Demonstration To Optimise Pasture Utilisation And Stocking Rate In Mediterranean Environments Of Southern Australia, M. W. Hyder, L. Anderton, S. Shaw, R. M. Mctaggart, D. Roberts, T. W. Plaisted, J. Douglas

IGC Proceedings (1993-2023)

No abstract provided.

Effectiveness Of Infrastructure Developments In Achieving Uniform Grazing Distribution On Extensive Cattle Properties In Northern Australia, L. P. Hunt, S. R. Petty, R. Cowley, A. Fisher, A. J. Ash, N. Macdonald

IGC Proceedings (1993-2023)

No abstract provided.

Comparison Of Ewe Lamb Growth On Herb Based And Ryegrass Based Pastures, K. P. Golding, Paul R. Kenyon, Stephen T. Morris, Peter D. Kemp

IGC Proceedings (1993-2023)

No abstract provided.

Cellphone Laws And Teens' Calling While Driving: Analysis Of Repeated Cross-Sectional Surveys In 2013, 2015, 2017, And 2019, Li Li, Caitlin N. Pope, Rebecca R. Andridge, Julie K. Bower, Guoqing Hu, Motao Zhu

Graduate Center for Gerontology Faculty Publications

BACKGROUND: Distracted driving among teens is a public health and safety concern. Most states in the U.S. have sought to restrict cellphone use while driving by enacting laws. This study examines the difference in prevalence of self-reported calling while driving (CWD) between states with different cellphone bans.

METHODS: Demographics and CWD data were extracted from state Youth Risk Behavior Surveys (YRBS) from 14 states in 2013, 2015, 2017, and 2019. The state YRBS is conducted every 2 years with a representative sample of 9th through 12th grade students attending public school. States were grouped by type of cellphone law(s): no …

Literature Review: Global Neonicotinoid Insecticide Occurrence In Aquatic Environments, Josephus F. Borsuah, Tiffany L. Messer, Daniel D. Snow, Steve D. Comfort, Aaron R. Mittelstet

Biosystems and Agricultural Engineering Faculty Publications

Neonicotinoids have been the most commonly used insecticides since the early 1990s. Despite their efficacy in improving crop protection and management, these agrochemicals have gained recent attention for their negative impacts on non-target species such as honeybees and aquatic invertebrates. In recent years, neonicotinoids have been detected in rivers and streams across the world. Determining and predicting the exposure potential of neonicotinoids in surface water requires a thorough understanding of their fate and transport mechanisms. Therefore, our objective was to provide a comprehensive review of neonicotinoids with a focus on their fate and transport mechanisms to and within surface waters …

Nutritional Parameters Of Grazing Calves In Milking Phase 2: Protein Metabolism, H. J. Fernandes, A. A. Rocha, J. Cavali, A. G. Silva, M. F. Paulino, L. M. Paiva, M. O. Porto, J. C. De Souza

IGC Proceedings (1993-2023)

No abstract provided.

Nutritional Parameters Of Grazing Nursing Calves 1: Rumen Microbial Production, H. J. Fernandes, J. Cavali, A. G. Silva, M. F. Paulino, A. A. Rocha, M. O. Porto, L. M. Paiva

IGC Proceedings (1993-2023)

No abstract provided.

Growth Of Carcass Tissues In Grazing Nursing Calves Supplemented Or Not, H. J. Fernandes, A. A. Rocha, M. F. Paulino, A. G. Silva, J. Cavali, M. O. Porto, J. C. De Souza, L. M. Paiva

IGC Proceedings (1993-2023)

No abstract provided.

Carbon Sequestration By Reforesting Legacy Grasslands On Coal Mining Sites, James F. Fox, J. Elliott Campbell, Peter M. Acton

Civil Engineering Faculty Publications

Future carbon management during energy production will rely on carbon capture and sequestration technology and carbon sequestration methods for offsetting non-capturable losses. The present study quantifies carbon sequestration via reforestation using measurements and modeling for recent and legacy surface coal mining grasslands that are re-restored through tree planting. This paper focuses on a case study of legacy coal mining sites in the southern Appalachia the United States. This five million-hectare region has a surface mining footprint of approximately 12% of the land area, and the reclamation method was primarily grassland. The results of the soil carbon sequestration rates for restored …

Geochemistry, Petrology, And Palynology Of The Princess No. 3 Coal, Greenup County, Kentucky, Madison M. Hood, Cortland F. Eble, James C. Hower, Shifeng Dai

Center for Applied Energy Research Faculty and Staff Publications

The high volatile C bituminous-rank, Bolsovian-age Princess No. 3 coal, a correlative of the heavily-mined Hazard No. 7 coal and the Peach Orchard and Coalburg Lower Split coals, was investigated three sites at a mine in Greenup County, Kentucky. The coal exhibits a “dulling upwards” trend, with decreasing vitrinite and a greater tendency towards dull clarain and bone lithotypes towards the top of the coal. The relatively vitrinite-rich basal lithotype is marked by a dominance of lycopod tree spores. The palynology transitions upwards to a middle parting co-dominated by tree fern and small lycopod spores and an upper bench dominated …