Physical Sciences and Mathematics Commons^™

Using Reduced Graphene Oxide To Remove Lead From The Environment, Jehan Adnan Abed, Hazim Abed Walli

Al-Qadisiyah Journal of Pure Science

The current study aims to evaluate the adsorption process of the lead element in aqueous solution by means of nanomaterial (reduced graphene oxide) that was prepared from the reduction of graphene oxide GO prepared by the Hummers method “nanomaterial was diagnosed (rGO) and to study its properties and characteristics by means of a scanning electron microscope (SEM) and a microscope. Atomic force (AFM). results showed that the percentage of removal of the element increased with increasing time, and as the results recorded that The highest adsorption was at a concentration of 100 mg of elemental lead. This indicates that the …

Cu(Ii), Mn(Ii), Ni(Ii) Complexes Of Mixed Amodiaquine And Paraaminobenzoic Acid: Synthesis, Characterization, Antimicrobial And Toxicological Activities In Wister Rats, Mercy O. Bamigboye, Ikechukwu P. Ejidike, Abdulbasit A. Aliyu

Al-Qadisiyah Journal of Pure Science

Four novel metal complexes of mixed amodiaquine and paraaminobenzoic acid have been synthesized using a standard method and confirmed by results of some physicochemical and spectroscopic techniques. Antimicrobial activities have been carried out on the complexes against some selected organisms: (antibacterial organisms: K. pneumonia, B. subtilis, E. coli, S. aureus, P. aeruginosa and S. faecalis) and (antifungal organisms: Candida albicans, Aspergillus niger and Penicillium chrysogenum) to determine their effectiveness. The complexes were evaluated for their toxicity level in wister rats. The Amodiaquine and Paraaminobenzoic acid produce complexes in ratio 1:1:1 in coordination with the metal ion. Octahedral geometry has been …

Bio Removal Of Cadmium Element By Use Bacillus Cereus, Noor Ali Mohammed, Hazim Abed Walli

Al-Qadisiyah Journal of Pure Science

Four samples were collected from different agricultural soils, as the isolates were isolated from these samples, namely Bacillus cereus, which were identified based on phenotypic characteristics and molecular diagnosis. The bioremoval process was carried out using Bacillus cereus and cadmium at concentrations (0.5, 0.2, 0.1 mg) at a temperature of 37 ° C and pH 7 for a period (72,48,24 hours), as the results showed that the highest removal of cadmium was 86% at a concentration of 0.1 mg / ml and the lowest removal was 34% at a concentration of 0.5 mg / ml. This study included the effect …

Biodegradation Of Phenol By Klebsiellaoxytocaisolated From Oil Contaminated Environments, Noor Mohammad Ali, Aamal Ghazi Mahdi Al-Saadi

Al-Qadisiyah Journal of Pure Science

The degradation of phenol by microorganisms in the soil is an important method through which these materials are removed from the environment, thus reducing environmental pollution. Biodegradation by bacterial species provides unique opportunities to destroy or convert phenolic compounds into other less toxic compounds. In this study, two Klebsiella oxytoca isolates were selected from petroleum contaminated soils using mineral salts medium supporting with phenol as the only carbon source.The isolates were identified by microscopic, morphological, and biochemical approaches, and their capabilities of biodegrading phenol were analyzed by 4-aminoantipyrine assay. The results showed that the selected Klebsiella oxytoca isolates were able …

Selective Isolation Of Heavy Metals Resistant Bacteria From Waste Water, Nisreen Jawad Abd-Alkhadim, Aalaa Fahim Abaas

Al-Qadisiyah Journal of Pure Science

The current study was conducted to isolate bacteria resistant to heavy metals lead, chromium and cadmium from waste water. The concentration of lead, chromium and cadmium was measured in the waste water samples collected from different sites in Baghdad city using a flame atomic spectrometry. The results showed a significant increase in metals concentration in some sites compared to the standard determinants, as well as a significant variation between the concentration of the three metals, and nil values were recorded in some sites. The primary isolation of lead, chromium and cadmium tolerant bacteria from five sites which recorded the highest …

Differential Survival Of Nursery‐Reared Acropora Cervicornis Outplants Along The Florida Reef Tract, Robert Van Woesik, Raymond B. Banister, Erich Bartels, David S. Gilliam, Elizabeth A. Goergen, Caitlin Lustic, Kerry Maxwell, Amelia Moura, Erinn M. Muller, Stephanie Schopmeyer, R. Scott Winters, Diego Lirman

Marine & Environmental Sciences Faculty Articles

In recent decades, the Florida reef tract has lost over 95% of its coral cover. Although isolated coral assemblages persist, coral restoration programs are attempting to recover local coral populations. Listed as threatened under the Endangered Species Act, Acropora cervicornis is the most widely targeted coral species for restoration in Florida. Yet strategies are still maturing to enhance the survival of nursey‐reared outplants of A. cervicornis colonies on natural reefs. This study examined the survival of 22,634 A. cervicornis colonies raised in nurseries along the Florida reef tract and outplanted to six reef habitats in seven geographical subregions between 2012 …

Restoration Of Seagrass Habitat Leads To Rapid Recovery Of Coastal Ecosystem Services, Robert J. Orth, Jonathan S. Lefcheck, Karen S. Mcglathery, Lillian Aoki, Mark Luckenbach, Kenneth A. Moore, Matthew P.J. Oreska, Richard A. Snyder, David J. Wilcox, Bo Lusk

VIMS Articles

There have been increasing attempts to reverse habitat degradation through active restoration, but few largescale successes are reported to guide these efforts. Here, we report outcomes from a unique and very successful seagrass restoration project: Since 1999, over 70 million seeds of a marine angiosperm, eelgrass (Zostera marina), have been broadcast into mid-western Atlantic coastal lagoons, leading to recovery of 3612 ha of seagrass. Well-developed meadows now foster productive and diverse animal communities, sequester substantial stocks of carbon and nitrogen, and have prompted a parallel restoration for bay scallops (Argopecten irradians). Restored ecosystem services are approaching historic levels, but we …

Improving The State Of Society And Making Men Happy: Rhetorical Citizenship In Historical And Contemporary Vegetarian/Vegan Discourses, Kristin E. Kondrlik

Sustainability Research & Practice Seminar Presentations

No abstract provided.

Cyber Supply Chain Risk Management: Toward An Understanding Of The Antecedents To Demand For Assurance, Clark Hampton, Steve G. Sutton, Vicky Arnold, Deepak Khazanchi

Information Systems and Quantitative Analysis Faculty Publications

Recognizing the need for effective cyber risk management processes across the supply chain, the AICPA issued a new SOC in March 2020 for assuring cyber supply chain risk management (C-SCRM) processes. This study examines supply chain relationship factors and cyber risk issues to better understand the demand for C-SCRM assurance. Resource-Advantage Theory of Competition provides the conceptual foundation for assessing the dual drivers of relationship building and cyber risk management on demand for assurance. We use a field survey to collect data from 205 professionals enabling evaluation of the complex relationships in the theoretical model. Results support all hypotheses, provide …

Hand Held Computers Improve Rangeland Health Data Collection And Analysis, Matthew Braun, N. Elliot, A. Pantel

IGC Proceedings (1993-2023)

No abstract provided.

Image‐Based Rangeland Monitoring At Multiple Scales, D. T. Booth, A. S. Laliberte, A. Rango, J. E. Herrick

IGC Proceedings (1993-2023)

No abstract provided.

Gobi Forage: An Early Warning System For Livestock In The Gobi Region Of Mongolia, L. Bolor-Erdene, Jay Peter Angerer, Sean Granville-Ross, M. Urgamal, D. Narangarel, D. Tsogoo, Tim Stewart, Dennis Sheehy

IGC Proceedings (1993-2023)

No abstract provided.

Terrain Analysis And Digital Soil Mapping In The Xilin River Catchment, Inner Mongolia, Benjamin Blank, Frauke Barthold, Thomas Lendvaczky, Lutz Breuer, Hans-Georg Frede

IGC Proceedings (1993-2023)

No abstract provided.

Flexibility Nutrition Substance Dynamic Of Seriphidium Transiliense Under Three Enclosure Status, Zongjiu Sun, Shazhou An, Xu Peng

IGC Proceedings (1993-2023)

No abstract provided.

Implementation Of An Occupancy-Based Monitoring Protocol For A Widespread And Cryptic Species, The New England Cottontail (Sylvilagus Transitionalis), Colin P. Shea, Mitchell J. Eaton, Darryl I. Mackenzie

United States Geological Survey: Staff Publications

Context. Designing effective long-term monitoring strategies is essential for managing wildlife populations. Implementing a cost-effective, practical monitoring program is especially challenging for widespread but locally rare species. Early successional habitat preferred by the New England cottontail (NEC) has become increasingly rare and fragmented, resulting in substantial declines from their peak distribution in the mid-1900s. The introduction of a possible competitor species, the eastern cottontail (EC),may also have played a role. Uncertainty surrounding how these factors have contributed to NEC declines has complicated management and necessitated development of an appropriate monitoring framework to understand possible drivers of distribution and dynamics.

Aims. …

Effect Of Stocking Density Of Yak (Bos Grunniens) On Floral Diversity And Biomass Of Rangeland In Northern Qinghai‐Tibetan Plateau, Rende Song, G. Li, Nobumi Hasegawa, Youliang Wang, Shengqing Feng

IGC Proceedings (1993-2023)

No abstract provided.

Sward Characteristics Of Dairy Cows Grazed At Two Stocking Rates In Agro‐Pastoral Transitional Zone Of Northern China, Yonghong Shi, Jianguo Han

IGC Proceedings (1993-2023)

No abstract provided.

A Watershed Event For A Watershed Community: The Development Of Flood Control For The Santa Ana River Basin, Adam Scott Miller

History in the Making

Southern California receives the vast majority of its yearly rainfall in the relatively short time period between the months of December and March. Occasionally, this intense rainfall creates floods that have historically threatened and devastated the communities of this region. The twentieth century proved challenging for local flood control agencies. California experienced tremendous population growth, resulting in migrants settling on the existing floodplains. Unaware of the periodic, hidden menace, newcomers were ruined when rivers and their tributaries flooded. It became clear that a significant change in flood control methods was required. In 1936, Congress passed the Flood Control Act appropriating …

A Nuanced Lakatos Philosophy Of Theology And Science, Doug Kennard

Proceedings of the International Conference on Creationism

A Lakatos philosophy of science fosters nuanced precision within critical realism, recognizing that falsification of any theory (for example, evolution) does not occur without providing a better theory.

Imre Lakatos articulated a moderate foundational rational model of derivation in the philosophy of mathematics and science that utilized Peircian pragmatism to encourage its productivity and to make sense of paradigm change. Lakatos proposes a sophisticated falsification view that encourages helpful development, because, “There is no falsification before the emergence of a better theory.” Thus a creationist model needs to focus on crafting better theories or creationist models will never be seriously …

Spatial Training And Calculus Ability: Investigating Impacts On Student Performance And Cognitive Style, Lindsay J. Mccunn, Emily Cilli-Turner

Journal of Educational Research and Practice

Undergraduate calculus is a foundational mathematics sequence that previews the sophistication students will need to succeed in higher-level courses. However, students often struggle with concepts in calculus because they are more abstract and visual than those in other foundational mathematics courses. Additionally, women continue to be underrepresented in the STEM fields. This study builds on previous work indicating a malleability in spatial ability by testing whether improvement occurs in students’ spatial and mathematics ability after implementing spatial training in calculus courses. The researchers also measured associations between spatial training and self-reported cognitive style. While spatial training did not significantly improve …

Outcrop And Thin Section Scale Descriptions Of Silurian Carbonates Within The Hiawatha National Forest, Mackinac County, Upper Peninsula, Michigan, Usa, Erik B. Larson, Jonathan B. Sumrall

Faculty Research

Silurian carbonate outcrops within the southern part of the St. Ignace District of the Hiawatha National Forest (Mackinac County, Michigan) were examined to develop a local description of the exposed geology. The bedrock geology consists of the Manistique Group (dominantly the Cordell Formation) and the Engadine Group (Rockview Formation, Rapson Creek Formation, and Bush Bay Formation). Building on observations and diferentiation from previous investigations, outcrops were selected to describe the macroscopic characteristics of these formations in attempt to develop a local description that would be more useful compared to confusing regional descriptions for researchers and forest ofcials. In Mackinac County, …

Monitoring Urine Distribution By Grazing Livestock, Keith Betteridge, Coby J. Hoogendoorn, Wendy Griffiths, Des A. Costall, Mark Carter, Patrick Laube

IGC Proceedings (1993-2023)

No abstract provided.

Developing A Decision Support Tool For The Steppe Zone Of Ghom‐Iran, By Implementing A State And Transition Model Within A Bayesian Belief Network, H. Bashari, C. S. Smith, O. J. H. Bosch

IGC Proceedings (1993-2023)

No abstract provided.

Localization Of Range Improvement Plans Using Gis And Comparing With Suggested Projects Of Range Management Plans In Lar Region, Hossein Azarnivand, R. Namjoyan, Hossein Arzani, Mohammad Jafari, M. A. Zare Chahouki

IGC Proceedings (1993-2023)

No abstract provided.

21st Century Pastoralism--Remote Management Innovations For Sustainability In Arid Rangeland Pastoral Production, M. R. C. Ashley, A. J. Bubb, Adrian R. James, Craig D. James, C. H. James

IGC Proceedings (1993-2023)

No abstract provided.

The Effect Of Vegetative Cover In The Erosion Prevention Of A Cattle Trodden Slope Pasture, T. N. Pande, H. Yamamoto

IGC Proceedings (1993-2023)

No abstract provided.

Taking The Fingerprints Of Sea Level Changes, Jerry Mitrovica

Sustainability Seminar Series

The concept of eustasy, that is, the assumption that ice mass changes are accompanied by a globally uniform change in sea level, has -- until relatively recently -- been pervasive in the analysis of paleo and modern sea level records, and has stymied progress in both fields. I will demonstrate, using examples ranging from the last tens of millions of years to the modern world, that a variety of geophysical processes drive sea level changes with significant geographic variability. Modeling of these processes has improved estimates of global mean sea level change, but it has also motivated recent efforts to …

Condition And Function Of Red River Valley Streams Receiving Nutrients From Human Activities In Manitoba, Canada, Kristin J. Painter

Electronic Thesis and Dissertation Repository

Small tributary streams are conduits between the landscape and larger waterbodies and provide important ecosystem services including assimilation of nutrients from human activities which may be protective of downstream waterbodies. In the Red River Valley (RRV), Manitoba, numerous nutrient sources including agricultural runoff, livestock manure, and municipal wastewater effluent, have been attributed to the eutrophication of Lake Winnipeg and thus require targeted management to prevent loss of nutrients from land to lake. However, linkages between land-based nutrient-producing human activities in the RRV and the ecological status of the tributaries remain poorly understood. Furthermore, the proportional contribution of each source of …

Soil-Plant-Animal Interrelationships And The Mineral Status In Grazing Cattle With The New Agro-Ecological Conditions In Cuba, Odilia Gutiérrez, Gustavo Crespo, R. Mejias, R. Garcia, H. Fajardo

IGC Proceedings (1993-2023)

No abstract provided.

Testing Classical Interactions Between Finite Particles As A Model Of Nuclear Structure, Edward A. Boudreaux, Eric C. Baxter

Proceedings of the International Conference on Creationism

A finite dimensional model for the electron and proton has been used to compute nuclear properties such as: structure, binding energies, energies and rates of decay of radioactive isotopes.

Computations were conducted within the frame of classical electromagnetic interactions between toroidal electrons and protons of finite, fixed dimensions. Positions and orientations of each particle were allowed to vary using the variational method, until the minimum energy configuration was attained.

Nucleon shell structures were found to build from outer levels toward inner ones, with occupancies following the magic numbers so well known in nuclear physics. Neutrons were found to be formed …