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Articles 2011 - 2040 of 12617
Full-Text Articles in Physical Sciences and Mathematics
Producer’S Guide To Pasture-Based Beef Finishing, Gregory S. Halich, Jeff Lehmkuhler, Gregg Rentfrow, Fred Martz, S. Ray Smith, Lee Meyer
Producer’S Guide To Pasture-Based Beef Finishing, Gregory S. Halich, Jeff Lehmkuhler, Gregg Rentfrow, Fred Martz, S. Ray Smith, Lee Meyer
Agriculture and Natural Resources Publications
Beef cattle were routinely finished locally in Kentucky and other parts of the upper south before the 1950s, primarily on pasture with some grain or by-products from distilleries and grain processing mills. Cattle were typically born, raised, and finished on the same farm then sent to a local butcher where the meat was sold in nearby communities and cities. After the Second World War grain and transportation costs decreased dramatically and supermarket chains that required a large, steady supply channel were established. The combined effect of these changes made finishing in large centralized locations more economical. Over the next couple …
Astr 103: Descriptive Astronomy Syllabus, Michael Sibbernsen
Astr 103: Descriptive Astronomy Syllabus, Michael Sibbernsen
Department of Physics and Astronomy: Syllabi
Syllabus for ASTR 103 Descriptive Astronomy for Fall 2015 semester.
Astr 224: Astronomy And Astrophysics Laboratory, Zachary Smith
Astr 224: Astronomy And Astrophysics Laboratory, Zachary Smith
Department of Physics and Astronomy: Syllabi
Syllabus for ASTR 224 Astronomy and Astrophysics Laboratory for Fall 2015.
Phys 151: Elements Of Physics, Sy-Hwang Liou
Phys 151: Elements Of Physics, Sy-Hwang Liou
Department of Physics and Astronomy: Syllabi
Syllabus for PHYS 151: Elementary Physics syllabus for Fall 2015 semester.
Phys 141: Elementary General Physics, Orhan Yenen
Phys 141: Elementary General Physics, Orhan Yenen
Department of Physics and Astronomy: Syllabi
Syllabus for PHYS 141: Elementary General Physics I for Fall 2015 semester.
Astr 113: Life In The Universe Syllabus, Edward Schmidt
Astr 113: Life In The Universe Syllabus, Edward Schmidt
Department of Physics and Astronomy: Syllabi
Syllabus for ASTR 113 Life in the Universe for Fall 2015 semester.
Astr 204: Introduction To Astronomy And Astrophysics, Shawn Langan
Astr 204: Introduction To Astronomy And Astrophysics, Shawn Langan
Department of Physics and Astronomy: Syllabi
Syllabus for ASTR 204 Introduction to Astronomy and Astrophysics for Fall 2015 semester.
Mixed Valent Metal Pincer Complexes And Reactivity Of Metal Complexes Of Extended Pincer Ligands, Jeewantha Sampath Hewage
Mixed Valent Metal Pincer Complexes And Reactivity Of Metal Complexes Of Extended Pincer Ligands, Jeewantha Sampath Hewage
Dissertations (1934 -)
Historically, the study of mixed valence complexes has been critical for advancing our understanding of electron transfer processes in biological and abiological systems. The recent use of mixed valence complexes in electrochromic materials, and the promise of their use in future technological or molecular electronic applications, has spurred further interest in this class of compound. Previous studies by our research group have shown that gallium(III) or tricarbonylrhenium(I) complexes of pincer-type ligands with diarylamido anchors and either pyrazol-1-yl (pz) or diarylphosphino (PAr2) flanking donors are electroactive species with quasi reversible ligand-centered oxidations. Moreover, the one-electron oxidized derivative with pz flankers, [Ga(L)(L+)]2+ …
With Vibrationally Excited Thiophosgene Molecule And Double-Well Ion Traps, Dmytro Shyshlov
With Vibrationally Excited Thiophosgene Molecule And Double-Well Ion Traps, Dmytro Shyshlov
Dissertations (1934 -)
For practical realization of quantum information processing we need a quantum system that provides reliable preparation of the initial state, high-fidelity quantum gate operations, error tolerance, readout of the result of quantum computation and scalability of the system to increase the number of qubits. In this dissertation we show how these requirements can be addressed for molecular quantum computer. For computational study of quantum information processing with molecules we employ thiophosgene (SCCl2) molecule that has been used as a test system for quantum control experiments [Mol. Phys. 105, 1999 (2007)]. We investigate the gateway scheme of control in which transitions …
Wildlife Crime And Other Challenges To Resource System Resilience, Patricia Anne Raxter
Wildlife Crime And Other Challenges To Resource System Resilience, Patricia Anne Raxter
Graduate Program in International Studies Theses & Dissertations
Although wildlife crime has exploded in Africa over the past decade —“commercial poaching” now kills an estimated eight percent of the continent’s elephant population each year—some governments have proven more successful than others at protecting wildlife and preserving habitats. To explain this variation, this study examines how the policies of three states (Kenya, Tanzania, and Botswana) have enhanced or undermined the resilience of the continent’s elephant ecosystem. Using the social-ecological system framework, the study illustrates how each state’s changing practices have either exacerbated the stresses wrought by wildlife crime or successfully protected local populations from poaching. The study finds that …
Mathematical Simulation Of Direct Glucose Fuel Cell, Jyothsna Jagannath Annepu
Mathematical Simulation Of Direct Glucose Fuel Cell, Jyothsna Jagannath Annepu
All Student Theses and Dissertations
Enzymatic glucose fuel cell and microbial fuel cell are limited by their extremely low power and short durability. Direct Glucose Fuel Cell (DGFC) appears to be a promising alternative power source in low power portable devices and medicinal implants. In this thesis, a one dimensional mathematical model is developed to simulate Direct Glucose Fuel Cell performance. The model accounts simultaneously for mass transport of reactants, products and intermediate species, together with reaction kinetics and ohmic resistance effects in a Direct Glucose Fuel Cell system. It resulted in two sets (for anode and cathode) of first order nonlinear differential equations (derived …
Social Tag Relevance Estimation Via Ranking-Oriented Neighbour Voting, Chaoran Cui, Jialie Shen, Jun Ma, Tao Lian
Social Tag Relevance Estimation Via Ranking-Oriented Neighbour Voting, Chaoran Cui, Jialie Shen, Jun Ma, Tao Lian
Research Collection School Of Computing and Information Systems
User-generated tags associated with social images are frequently imprecise and incomplete. Therefore, a fundamental challenge in tag-based applications is the problem of tag relevance estimation, which concerns how to interpret and quantify the relevance of a tag with respect to the contents of an image. In this paper, we address the key problem from a new perspective of learning to rank, and develop a novel approach to facilitate tag relevance estimation to directly optimize the ranking performance of tag-based image search. A supervision step is introduced into the neighbour voting scheme, in which tag relevance is estimated by accumulating votes …
Comparing Nutrient Recovery Via Rapid (Flash Hydrolysis) And Conventional Hydrothermal Liquefaction Processes For Microalgae Cultivation, Caleb Richard Talbot
Comparing Nutrient Recovery Via Rapid (Flash Hydrolysis) And Conventional Hydrothermal Liquefaction Processes For Microalgae Cultivation, Caleb Richard Talbot
Civil & Environmental Engineering Theses & Dissertations
Algal biofuels have the potential to provide a scalable source of renewable fuels in the near future. The high nutrient use in algae cultivation and its recovery and recycling is one of the challenges that may limit the scalability and sustainability of algal biofuels. The present study evaluates the use of Hydrolysate obtained after Flash Hydrolysis (FH) of Scenedesmus at 280 C as a nutrient source for microalgae cultivation. FH Hydrolysate nutrient recycling was compared with low temperature batch Hydrothermal Liquefaction (HTL) nutrient recycling. Oocystis and Scenedesmus were cultivated using Hydrolysate as a partial phosphorous (P) and nitrogen (N) source. …
Numerical Studies And Optimization Of Magnetron With Diffraction Output (Mdo) Using Particle-In-Cell Simulations, Alireza Majzoobi
Numerical Studies And Optimization Of Magnetron With Diffraction Output (Mdo) Using Particle-In-Cell Simulations, Alireza Majzoobi
Electrical & Computer Engineering Theses & Dissertations
The first magnetron as a vacuum-tube device, capable of generating microwaves, was invented in 1913. This thesis research focuses on numerical simulation-based analysis of magnetron performance. The particle-in-cell (PIC) based MAGIC software tool has been utilized to study the A6 and the Rising-Sun magnetron structures, and to obtain the optimized geometry for optimizing the device performance. The A6 magnetron is the more traditional structure and has been studied more often. The Rising-Sun geometry, consists of two alternating groups of short and long vanes in angular orientation, and was created to achieve mode stability.
The effect of endcaps, changes in lengths …
A Risk Assessment Of The Impacts Of Coastal Flooding And Sea Level Rise On The Existing And New Pump Stations 113, Norfolk, Va, David A. Pezza
A Risk Assessment Of The Impacts Of Coastal Flooding And Sea Level Rise On The Existing And New Pump Stations 113, Norfolk, Va, David A. Pezza
Civil & Environmental Engineering Theses & Dissertations
The author assessed the risk to a wastewater pump station and a planned replacement located nearby due to coastal flooding and rising sea levels. The locations for the pump stations are in the Larchmont neighborhood by the Lafayette River tidal estuaries in Norfolk, Virginia. The Lafayette River is a tributary to the Elizabeth River, which flows to the Chesapeake Bay. The low-lying areas along the river are subject to coastal surges caused by tropical and extra-tropical storms that flood the bay.
The region is considered one of the urban areas most exposed to the accelerating rate of rising sea levels. …
Efficient Algorithms For Prokaryotic Whole Genome Assembly And Finishing, Abhishek Biswas
Efficient Algorithms For Prokaryotic Whole Genome Assembly And Finishing, Abhishek Biswas
Computer Science Theses & Dissertations
De-novo genome assembly from DNA fragments is primarily based on sequence overlap information. In addition, mate-pair reads or paired-end reads provide linking information for joining gaps and bridging repeat regions. Genome assemblers in general assemble long contiguous sequences (contigs) using both overlapping reads and linked reads until the assembly runs into an ambiguous repeat region. These contigs are further bridged into scaffolds using linked read information. However, errors can be made in both phases of assembly due to high error threshold of overlap acceptance and linking based on too few mate reads. Identical as well as similar repeat regions can …
Source-Specific Molecular Signatures For Light-Absorbing Organic Aerosols, Amanda Susan Willoughby
Source-Specific Molecular Signatures For Light-Absorbing Organic Aerosols, Amanda Susan Willoughby
Chemistry & Biochemistry Theses & Dissertations
Organic aerosols (OA) are universally regarded as an important component of the atmosphere based on quantitative significance as well as the far-reaching impact they have on global climate forcing and human health. Despite the acknowledged importance, OA amounts and impacts remain the largest uncertainties regarding radiative forcing estimates. Incomplete chemical characterization of aerosol organic matter (OM) and a lack of concrete source apportionment is a major source of this uncertainty. The primary focus of this study is to provide much needed molecular details regarding ambient OA from key emission sources, and establish links between molecular and optical properties.
Complete chemical …
Synthesis, Characterisation, Electrochemical, And Spectroscopic Studies Of Cobaloximes: Unique Clues Of Cobalt(I) Species In Various Solvents, Michael John Celestine
Synthesis, Characterisation, Electrochemical, And Spectroscopic Studies Of Cobaloximes: Unique Clues Of Cobalt(I) Species In Various Solvents, Michael John Celestine
Chemistry & Biochemistry Theses & Dissertations
With the dwindling amount of fossil fuels in the world’s reserve is said to run out in the future. The use of alternative fuels such as hydrogen can be produced from renewable sources. One source is the use of first row transition metal complexes that can harness the power of the sun to reduce protons to hydrogen. In this thesis we investigated a well-known hydrogen evolution catalyst in a quest to understand the behavior of different oxidation states that occur during the catalytic cycle.
In an attempt to synthesize a binuclear ruthenium(II) complex, [{Ru(phen)2}2{µmes(1,4-phO-Izphen)3}](PF6)4, as a possible photosensitizer for the …
Wallops Assateague Chincoteague Inlet (Waci) Geologic And Coastal Management Summary Report, C. Scott Hardaway Jr., Donna A. Milligan, Christine A. Wilcox, Curtis Smith
Wallops Assateague Chincoteague Inlet (Waci) Geologic And Coastal Management Summary Report, C. Scott Hardaway Jr., Donna A. Milligan, Christine A. Wilcox, Curtis Smith
Reports
No abstract provided.
Getches-Wilkinson Center Newsletter, Fall 2015, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment
Getches-Wilkinson Center Newsletter, Fall 2015, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment
Getches-Wilkinson Center for Natural Resources, Energy, and the Environment Newsletter (2013-)
No abstract provided.
Ligand Discovery For The Alanine-Serine-Cysteine Transporter (Asct2, Slc1a5) From Homology Modeling And Virtual Screening, Colas Claire, Christof Grewer, Nicholas J. Otte, Armanda Gameiro, Thomas Albers, Kurnvir Singh, Helen Shere, Massimiliano Bonomi, Jeff Holst, Avner Schlessinger
Ligand Discovery For The Alanine-Serine-Cysteine Transporter (Asct2, Slc1a5) From Homology Modeling And Virtual Screening, Colas Claire, Christof Grewer, Nicholas J. Otte, Armanda Gameiro, Thomas Albers, Kurnvir Singh, Helen Shere, Massimiliano Bonomi, Jeff Holst, Avner Schlessinger
Chemistry Faculty Scholarship
The Alanine-Serine-Cysteine transporter ASCT2 (SLC1A5) is a membrane protein that transports neutral amino acids into cells in exchange for outward movement of intracellular amino acids. ASCT2 is highly expressed in peripheral tissues such as the lung and intestines where it contributes to the homeostasis of intracellular concentrations of neutral amino acids. ASCT2 also plays an important role in the development of a variety of cancers such as melanoma by transporting amino acid nutrients such as glutamine into the proliferating tumors. Therefore, ASCT2 is a key drug target with potentially great pharmacological importance. Here, we identify seven ASCT2 ligands by computational …
A Polynomial Time Algorithm For Computing The Area Under A Gdt Curve, Aleksandar Poleksic
A Polynomial Time Algorithm For Computing The Area Under A Gdt Curve, Aleksandar Poleksic
Faculty Publications
Background
Progress in the field of protein three-dimensional structure prediction depends on the development of new and improved algorithms for measuring the quality of protein models. Perhaps the best descriptor of the quality of a protein model is the GDT function that maps each distance cutoff θ to the number of atoms in the protein model that can be fit under the distance θ from the corresponding atoms in the experimentally determined structure. It has long been known that the area under the graph of this function (GDT_A) can serve as a reliable, single numerical measure …
Principles Of Information Technology Management, Jennifer Pitts, Jacqueline Radebaugh
Principles Of Information Technology Management, Jennifer Pitts, Jacqueline Radebaugh
Computer Science and Information Technology Grants Collections
This Grants Collection for Principles of Information Technology Management was created under a Round Three ALG Textbook Transformation Grant.
Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.
Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials:
- Linked Syllabus
- Initial Proposal
- Final Report
Chart Adequacy: Workshop And Gebco Training, Limor Gur-Arieh, Yusoff Kamaruddin, Amon Kimeli, Anthony Klemm, Hirokazu Kurita, Shachak Pe'eri, Indra Budi Prasetyawan, Jae-Young Roh, Jaya Roperez, Nilupa Samarakoon, Jaqueline Sydenham, Maxlimer Vallee, Rochelle A. Wigley
Chart Adequacy: Workshop And Gebco Training, Limor Gur-Arieh, Yusoff Kamaruddin, Amon Kimeli, Anthony Klemm, Hirokazu Kurita, Shachak Pe'eri, Indra Budi Prasetyawan, Jae-Young Roh, Jaya Roperez, Nilupa Samarakoon, Jaqueline Sydenham, Maxlimer Vallee, Rochelle A. Wigley
Center for Coastal and Ocean Mapping
In July, 2015 the first NOAA Chart Adequacy Workshop was held in Silver Spring, Maryland, USA. Following a three-day workshop (14th to 16th July, 2015), four Nippon Foundation GEBCO students stayed at NOAA for an additional 10-day training at Office of Coast Survey’s Marine Chart Division. The key objective of the NOAA Chart Adequacy Workshop was to demonstrate techniques to evaluate the suitability of nautical chart products using chart quality information and publicly-available information. The attendees were cartographers, hydrographers and potential chart producers from hydrographic offices and government agencies around the world. The nations of the participants in the workshop …
Cordilleran Front Range Structural Features In Northwest Montana Interpreted From Vintage Seismic 2 Reflection Data, Mason Porter
Cordilleran Front Range Structural Features In Northwest Montana Interpreted From Vintage Seismic 2 Reflection Data, Mason Porter
Graduate Theses & Non-Theses
Industry seismic reflection data were collected in 1983 in the Rocky Mountain Cordillera front ranges of northwest Montana. These seismic profiles represent 160 km of deep reflection data that cross the eastern Purcell anticlinorium, Rocky Mountain Trench (RMT), Rocky Mountain Basal Detachment (RMBD), and Lewis thrust. We have reprocessed these data using modern processing techniques including refraction statics, pre-stack time migration (PSTM), and pre- and post-stack depth migration. The RMT contains Tertiary fill to 1 km depth and the RMT fault system has a minimum of 3-4 km of normal displacement. The RMT and Flathead fault systems are interpreted to …
การศึกษาจุลินทรีย์ในสิ่งแวดล้อมจากแอนตาร์ติก สู่ ประเทศไทย, เสาวนีย์ วิจิตรโกสุม
การศึกษาจุลินทรีย์ในสิ่งแวดล้อมจากแอนตาร์ติก สู่ ประเทศไทย, เสาวนีย์ วิจิตรโกสุม
Thai Environment
No abstract provided.
แผนแม่บทรองรับการเปลี่ยนแปลงสภาพภูมิอากาศ พ.ศ.2558-2593, แสงจันทร์ ลิ้มจิรกาล
แผนแม่บทรองรับการเปลี่ยนแปลงสภาพภูมิอากาศ พ.ศ.2558-2593, แสงจันทร์ ลิ้มจิรกาล
Thai Environment
No abstract provided.