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Articles 12991 - 13020 of 302422
Full-Text Articles in Physical Sciences and Mathematics
Species And Chlorine Fertilisation Affect Dietary Cation-Anion Difference Of Cool-Season Grasses, Gilles Bélanger, Sophie Pelletier, H. Brassard, Gaëtan F. Tremblay, Philippe Seguin, R. Drapeau, A. Brégard, Réal Michaud, Guy Allard
Species And Chlorine Fertilisation Affect Dietary Cation-Anion Difference Of Cool-Season Grasses, Gilles Bélanger, Sophie Pelletier, H. Brassard, Gaëtan F. Tremblay, Philippe Seguin, R. Drapeau, A. Brégard, Réal Michaud, Guy Allard
IGC Proceedings (1993-2023)
The Dietary Cation-Anion Difference [DCAD = (Na + K) - (Cl + S); Ender et al., 1971] is used in balancing rations for dry dairy cows. Low DCAD diets induce a mild, compensated metabolic acidosis that stimulates bone resorption, improves Ca homeostasis, and prevents milk fever. Dry cow rations contain a high proportion of forage and, therefore, forages fed two to four weeks prepartum should have a low or negative DCAD value. Our objectives were to evaluate the DCAD of five cool-season grass species grown in eastern Canada and to determine the effect of Cl fertilisation on the DCAD …
Forage Quality Of Cool Season Pasture Species Under Two Rotational Grazing Height Regimes, H. D. Karsten, M. Carlassare
Forage Quality Of Cool Season Pasture Species Under Two Rotational Grazing Height Regimes, H. D. Karsten, M. Carlassare
IGC Proceedings (1993-2023)
To optimize animal and pasture performance in management intensive grazing systems, pasture production and quality often must be compromised. Rotationally-stocking pastures at slightly taller grazing heights can increase pasture productivity, but lower forage quality may limit animal performance. Our objective was to compare the forage quality of common cool season pasture species in the Northeastern U.S., under two rotational grazing regimes defined by slightly different grass heights.
Stepwise Assembly Of Quinary Multivariate Metal−Organic Frameworks Via Diversified Linker Exchange And Installation, Yuchen Hu, Xin Zhang, Rebecca Shu Hui Khoo, Christian Fiankor, Xu Zhang, Jian Zhang
Stepwise Assembly Of Quinary Multivariate Metal−Organic Frameworks Via Diversified Linker Exchange And Installation, Yuchen Hu, Xin Zhang, Rebecca Shu Hui Khoo, Christian Fiankor, Xu Zhang, Jian Zhang
Chemistry Department: Faculty Publications
Multivariate MOFs (MTV-MOFs) constructed from multiple components with atomistic precision hold the promise for many fascinating developments in both fundamental sciences and applications. Sequential linker installation can be an effective method to introduce different functional linkers into an MOF that contains coordinatively unsaturated metal sites. However, in many cases, these linkers must be installed according to a specific sequence and the complete synthetic flexibility and freedom is yet to be realized. Here, we rationally decreased the size of the primary ligand used in NPF-300, a Zr-MOF with scu topology (NPF = Nebraska Porous Framework), and synthesized its isostructure, NPF-320. NPF-320 …
Consistency Of Effective Field Theory Analyses Of The Boss Power Spectrum, T. Simon, P. Zhang, V. Poulin, Tristan L. Smith
Consistency Of Effective Field Theory Analyses Of The Boss Power Spectrum, T. Simon, P. Zhang, V. Poulin, Tristan L. Smith
Physics & Astronomy Faculty Works
We assess the robustness of Λ cold dark matter (Λ CDM) results from the full-shape analysis of BOSS power spectrum using the one-loop prediction of the effective field theory of large-scale structure (EFTofLSS). In former EFT analyses, the two public likelihoods pybird and class-pt lead to results in agreement only at the 1σ level, which may appear unsatisfactory given that they are derived from the same BOSS dataset and the same theory model. To identify the origin of the difference, we perform a thorough comparison of the various analyses choices made between the two pipelines. We find that most …
Anderson Localization Of Electromagnetic Waves In Three Dimensions, Alexey Yamilov, Sergey E. Skipetrov, Tyler W. Hughes, Momchil Minkov, Zongfu Yu, Hui Cao
Anderson Localization Of Electromagnetic Waves In Three Dimensions, Alexey Yamilov, Sergey E. Skipetrov, Tyler W. Hughes, Momchil Minkov, Zongfu Yu, Hui Cao
Physics Faculty Research & Creative Works
Anderson localization is a halt of diffusive wave propagation in disordered systems. Despite extensive studies over the past 40 years, Anderson localization of light in three dimensions has remained elusive, leading to the question of its very existence. Recent advances have enabled finite-difference time-domain calculations to be sped up by orders of magnitude, allowing us to conduct brute-force numerical simulations of light transport in fully disordered three-dimensional systems with unprecedented dimension and refractive index difference. We show numerically three-dimensional localization of vector electromagnetic waves in random aggregates of overlapping metallic spheres, in sharp contrast to the absence of localization for …
Simulations Of Intruder-Free X-Ray Transient Absorption And Time-Resolved X-Ray Scattering For Probing Attosecond Electron Dynamics, Mengqi Yang
LSU Doctoral Dissertations
The motion of electrons plays a fundamental role in both physics and chemistry, and capturing such dynamics requires the ability to resolve changes at the attosecond timescale, which is enabled by the advent of ultrashort laser pulses. This dissertation aims to facilitate the interpretation of ultrafast electron dynamics and attosecond spectroscopy by real-time time-dependent density functional theory (RT-TDDFT) simulations. The first part of this dissertation focuses on improving the simulation of X-ray transient absorption spectra (XTAS) with Gaussian basis sets in RT-TDDFT by applying a filter to the transition dipole matrix. Due to the spatial limitation of atom-centered Gaussian functions, …
Limits On Leptonic Tev Emission From The Cygnus Cocoon With Swift-Xrt, David Guevel, Andrew Beardmore, Kim L. Page, Amy Lien, Ke Fang, Luigi Tibaldo, Sabrina Casanova, Petra Huentemeyer
Limits On Leptonic Tev Emission From The Cygnus Cocoon With Swift-Xrt, David Guevel, Andrew Beardmore, Kim L. Page, Amy Lien, Ke Fang, Luigi Tibaldo, Sabrina Casanova, Petra Huentemeyer
Michigan Tech Publications
3-ray observations of the Cygnus Cocoon, an extended source surrounding the Cygnus X star-forming region, suggest the presence of a cosmic-ray accelerator reaching energies up to a few PeV. The very-high-energy (VHE, 0.1-100 TeV) 3-ray emission may be explained by the interaction of cosmic-ray hadrons with matter inside the Cocoon, but an origin of inverse Compton radiation by relativistic electrons cannot be ruled out. Inverse Compton 3-rays at VHE are accompanied by synchrotron radiation peaked in X-rays. Hence, X-ray observations may probe the electron population and magnetic field of the source. We observed 11 fields in or near the Cygnus …
Lagrangian Displacement Field Estimators In Cosmology, Atsuhisa Ota, Hee Jong Seo, Shun Saito, Florian Beutler
Lagrangian Displacement Field Estimators In Cosmology, Atsuhisa Ota, Hee Jong Seo, Shun Saito, Florian Beutler
Physics Faculty Research & Creative Works
The late-time nonlinear Lagrangian displacement field is highly correlated with the initial field, so reconstructing it could enable us to extract primordial cosmological information. Our previous work [A. Ota et al., Phys. Rev. D 104, 123508 (2021)PRVDAQ2470-001010.1103/PhysRevD.104.123508] carefully studied the displacement field reconstructed from the late-time density field using the iterative method proposed by Schmittfull et al. [Phys. Rev. D 96, 023505 (2017)PRVDAQ2470-001010.1103/PhysRevD.96.023505] and found that it does not fully converge to the true, underlying displacement field (e.g., ∼8% offset at k∼0.2 h Mpc-1 at z=0.6). We also constructed the Lagrangian perturbation theory model for the reconstructed field, but the …
Attention Visual, Baris Dingil
Attention Visual, Baris Dingil
College of Computing and Digital Media Dissertations
This research presents an innovative approach to improving visual-spatial attention using a research tool based on the web. Recognizing the significant role visual-spatial attention plays in everyday life and cognitive function for humans, this research was undertaken with the aim of developing a user-friendly, accessible web-based tool called Attention Visual (attentionvisual.com) to enhance this crucial cognitive skill. This tool also facilitates data collection, potentially accelerating the pace and enhancing the quality of related research. Both qualitative and quantitative methods were utilized for data collection and analysis. In order to stimulate improvements in visual-spatial attention, the tool’s algorithm was structured to …
2023 June 15 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University
2023 June 15 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Weekly Drought Summaries
No abstract provided.
Atomistic Assessment Of Drug-Phospholipid Interactions Consequent To Cancer Treatment: A Study Of Anthracycline Cardiotoxicity, Yara Elsayed Ahmed
Atomistic Assessment Of Drug-Phospholipid Interactions Consequent To Cancer Treatment: A Study Of Anthracycline Cardiotoxicity, Yara Elsayed Ahmed
Theses and Dissertations
Despite being one of the most effective chemotherapeutic agents developed to date, Anthracyclines are notorious for their cardiotoxicity. Their clinical use is frequently limited both in dosage and in prescription due to the severe cardiac damage they cause. The mechanism of anthracycline-induced cardiotoxicity is not yet fully understood. However, it is hypothesized that interactions with the myocardial membrane play an important role in imparting cardiotoxicity. In this study, we use molecular dynamics simulations and density functional theory calculations to study the anthracycline drug molecules and the interactions that they have with the myocardial membrane. We construct a myocardial membrane model …
Dyonic Taub-Nut-Ads Space Phase Structure, Mohamed Tharwat
Dyonic Taub-Nut-Ads Space Phase Structure, Mohamed Tharwat
Theses and Dissertations
The Taub-NUT spacetime remains to hold many mysteries more than half a century after its discovery. The metric's controversy owes largely to the nut charge and the existence of Misner strings. Traditionally the metric is treated in the euclidean signature, this treatment hides the Misner strings. We treat the Taub-NUT spacetime with the Misner strings visible, not enforcing the time periodicity condition. We examine the phase structure belonging to three different horizon geometries. We deal with the hyperbolic, flat and spherical cases. We consider the stable phases, the phase transitions that exist between them, and find the preferable phases in …
Role Of Defect Type In Optimizing Photoelectrochemical Hydrogen Production Catalysts, Mohamed Mahrous
Role Of Defect Type In Optimizing Photoelectrochemical Hydrogen Production Catalysts, Mohamed Mahrous
Theses and Dissertations
The search for new energy sources has become a global challenge due to the increasing demand for energy and the negative impact of traditional energy sources on the environment. The photoelectrochemical water splitting has emerged as a promising alternative source for producing hydrogen, which can be used as a clean fuel. However, it is necessary to tailor the properties of the light-active material that will be used to absorb sunlight and split water. This research project aimed at providing detailed insights into the effect of varying the type and concentration of defects on the optical and electronic properties of diamond …
The Applicability Of The Postmortem Submersion Interval Estimation Formula For Human Remains Found In Subtropical Aquatic Environments, Kara L. Dicomo
The Applicability Of The Postmortem Submersion Interval Estimation Formula For Human Remains Found In Subtropical Aquatic Environments, Kara L. Dicomo
USF Tampa Graduate Theses and Dissertations
Within the past decade, several attempts have been made to standardize a method for estimating postmortem submersion intervals (PMSI); however, the majority of these studies have focused on data from a temperate climate which cannot be taken as representative of large portions of the globe. Thus, there are large portions of the earth in which the methodology from these studies may not be able to accurately estimate PMSI which has the potential to leave investigators in these other climatic zones at a disadvantage. This presentation presents a case study into the applicability of two Total Body Scoring Systems (TADS) utilized …
Search For The Least Massive Objects In The Hyades Open Cluster With The Help Of A Wide Stellar View, Stanislav Melnikov, Karamat Mirtadjieva
Search For The Least Massive Objects In The Hyades Open Cluster With The Help Of A Wide Stellar View, Stanislav Melnikov, Karamat Mirtadjieva
Bulletin of National University of Uzbekistan: Mathematics and Natural Sciences
No abstract provided.
Local And 2-Local Derivations On Small Dimensional Zinbiel Algebras, Bakhtiyor Yusupov, Sabohat Rozimova
Local And 2-Local Derivations On Small Dimensional Zinbiel Algebras, Bakhtiyor Yusupov, Sabohat Rozimova
Bulletin of National University of Uzbekistan: Mathematics and Natural Sciences
In the present paper we investigate local and 2-local derivations on small dimensional Zinbiel algebras. We give a description of derivations and local derivations on all three and four-dimensional Zinbiel algebras. Moreover, similar problem concerning 2-local derivations on all three and four-dimensional Zinbiel algebras are investigated.
Preliminary Perspectives On Information Passing In The Intelligence Community, Jeremy E. Block, Ilana Bookner, Sharon Lynn Chu, R. Jordan Crouser, Donald R. Honeycutt, Rebecca M. Jonas, Abhishek Kulkarni, Yancy Vance Paredes, Eric D. Ragan
Preliminary Perspectives On Information Passing In The Intelligence Community, Jeremy E. Block, Ilana Bookner, Sharon Lynn Chu, R. Jordan Crouser, Donald R. Honeycutt, Rebecca M. Jonas, Abhishek Kulkarni, Yancy Vance Paredes, Eric D. Ragan
Computer Science: Faculty Publications
Analyst sensemaking research typically focuses on individual or small groups conducting intelligence tasks. This has helped understand information retrieval tasks and how people communicate information. As a part of the grand challenge of the Summer Conference on Applied Data Science (SCADS) to build a system that can generate tailored daily reports (TLDR) for intelligence analysts, we conducted a qualitative interview study with analysts to increase understanding of information passing in the intelligence community. While our results are preliminary, we expect that this work will contribute to a better understanding of the information ecosystem of the intelligence community, how institutional dynamics …
Investigating The Structure Of The Oxide On Ni-Cr-Mo Alloys While Presenting A Method For Analysis Of Complex Oxides Using Quases, Adam M. Morgan, Jeffrey D. Henderson, Brad A. Kobe, Mark Biesinger, James J. Noel
Investigating The Structure Of The Oxide On Ni-Cr-Mo Alloys While Presenting A Method For Analysis Of Complex Oxides Using Quases, Adam M. Morgan, Jeffrey D. Henderson, Brad A. Kobe, Mark Biesinger, James J. Noel
Chemistry Publications
X-ray photoelectron spectroscopy (XPS) is a technique that is widely used to studythin oxide films because of its extremely high surface sensitivity. Utilizing theQUASES (Quantitative Analysis of Surfaces by Electron Spectroscopy) software pack-age developed by Sven Tougaard (University of Southern Denmark), a user canobtain additional information that is not extracted in conventional XPS analysis, spe-cifically the composition as a function of depth. Presented here is the QUASES analy-sis of four Ni-Cr-Mo alloys performed while testing various inelastic mean free path(IMFP) determination methods in the context of providing a framework for the analy-sis of complex oxides in QUASES. Ni-Cr-Mo alloys are …
Supramolecular Architectures Generated By Self-Assembly Of Guanosine And Isoguanosine Derivatives, Mengjia Liu
Supramolecular Architectures Generated By Self-Assembly Of Guanosine And Isoguanosine Derivatives, Mengjia Liu
USF Tampa Graduate Theses and Dissertations
This dissertation is primarily divided into three parts: 1) Anion, solvent-mediated, tunable self-assemblies of isoguanosine (isoG). 2) Post-assembly modification of the non-covalent isoG-pentaplex for Cesium extraction. 3) Supramolecular asymmetric amine catalysis.
The structural conformational design of the isoG decamer was employed for systematic investigations involving various substituted groups at the C8 position of purine and ribose. A series of isoG analogs with C8-phenyl substitutions were synthesized and utilized for Cesium coordination. The proximity between purine and ribose structures limited pentaplex formation for C8-phenyl substituted isoG derivatives. Based on this observation, a deoxy isoG derivative with a modified ribose was employed …
Weighted M-Subharmonic Measure And (M, 𝜓)-Regularity Of Compacts, Kobiljon Kuldoshev, Nurbek Narzillaev
Weighted M-Subharmonic Measure And (M, 𝜓)-Regularity Of Compacts, Kobiljon Kuldoshev, Nurbek Narzillaev
Bulletin of National University of Uzbekistan: Mathematics and Natural Sciences
It is known that, the m−subharmonic measure of a set E ⊂ D, related to a domain D ⊂ ℂn, is defined by m−subharmonic functions in D. In this article we define a generalization of the m−subharmonic measures and prove some of their properties.
Limit Theorems For Weakly Dependent Random Variables With Values In Stable Type P Banach Spaces, Olimjon Sharipov, Utkir Kobilov
Limit Theorems For Weakly Dependent Random Variables With Values In Stable Type P Banach Spaces, Olimjon Sharipov, Utkir Kobilov
Bulletin of National University of Uzbekistan: Mathematics and Natural Sciences
We consider stable type p Banach spaces. We extend results known for independent random variables to the mixing random variables.
In particular we prove moment in equalities, low of large numbers and almost sure convergence of the series in the case of mixing random variables.
Long-Term Degradation Mechanisms In Application-Implemented Radical Thin Films, Ewa Malgorzata Nowik-Boltyk, Tobias Junghoefer, Mathias Glaser, Erika Giangrisostomi, Ruslan Ovsyannikov, Shuyang Zhang, Chan Shu, Andrzej Rajca, Arrigo Calzolari, M. Benedetta Casu
Long-Term Degradation Mechanisms In Application-Implemented Radical Thin Films, Ewa Malgorzata Nowik-Boltyk, Tobias Junghoefer, Mathias Glaser, Erika Giangrisostomi, Ruslan Ovsyannikov, Shuyang Zhang, Chan Shu, Andrzej Rajca, Arrigo Calzolari, M. Benedetta Casu
Chemistry Department: Faculty Publications
Blatter radical derivatives are very attractive due to their potential applications, ranging from batteries to quantum technologies. In this work, we focus on the latest insights regarding the fundamental mechanisms of radical thin film (long-term) degradation, by comparing two Blatter radical derivatives. We find that the interaction with different contaminants (such as atomic H, Ar, N, and O and molecular H2, N2, O2, H2O, and NH2) affects the chemical and magnetic properties of the thin films upon air exposure. Also, the radical-specific site, where the contaminant interaction takes place, plays …
Streaming Approximation Scheme For Minimizing Total Completion Time On Parallel Machines Subject To Varying Processing Capacity, Bin Fu, Yumei Huo, Hairong Zhao
Streaming Approximation Scheme For Minimizing Total Completion Time On Parallel Machines Subject To Varying Processing Capacity, Bin Fu, Yumei Huo, Hairong Zhao
Computer Science Faculty Publications and Presentations
We study the problem of minimizing total completion time on parallel machines subject to varying processing capacity. In this paper, we develop an approximation scheme for the problem under the data stream model where the input data is massive and cannot fit into memory and thus can only be scanned a few times. Our algorithm can compute an approximate value of the optimal total completion time in one pass and output the schedule with the approximate value in two passes.
Final 2023 Residential Metals Abatement Program (Rmap) Racetrack Borrow Submittal, Pioneer Technical Services, Inc.
Final 2023 Residential Metals Abatement Program (Rmap) Racetrack Borrow Submittal, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
2023 Final Unreclaimed Sites Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
2023 Final Unreclaimed Sites Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Job Management Portal Software Review, Ruchir Elukurthy
Job Management Portal Software Review, Ruchir Elukurthy
University Honors Theses
This essay provides an overview of a computer science capstone project focused on developing a website for Abilities At Work, a non-profit organization. The website aims to assist employment specialists in managing clients' information and tracking their job application in finding meaningful employment. The essay highlights the various stages of the project, understanding requirements, selecting tools and technologies, creating an application architecture, and writing code. Also, this essay focuses on the challenges encountered during the project, along with the valuable lessons learned. This essay emphasizes how the project closely resembles real-world software development, offering insights for prospective students and professionals. …
Insect Classification And Explainability From Image Data Via Deep Learning Techniques, Tanvir Hossain Bhuiyan
Insect Classification And Explainability From Image Data Via Deep Learning Techniques, Tanvir Hossain Bhuiyan
USF Tampa Graduate Theses and Dissertations
Since the dawn of the Industrial Revolution, humanity has always tried to make labor more efficient and automated, and this trend is only continuing in the modern digital age. With the advent of artificial intelligence (AI) techniques in the latter part of the 20th century, the speed and scale with which AI has been leveraged to automate tasks defy human imagination. Many people deeply entrenched in the technology field are genuinely intrigued and concerned about how AI may change many of the ways in which humans have been living for millennia. Only time will provide the answers. This dissertation is …
Classifying Galaxy Images Using Improved Residual Networks, Jaykumar Patel
Classifying Galaxy Images Using Improved Residual Networks, Jaykumar Patel
Electronic Theses and Dissertations
The field of astronomy has made tremendous progress in recent years thanks to advancements in technology and the development of sophisticated algorithms. One area of interest for astronomers is the classification of galaxy morphology, which involves categorizing galaxies based on their visual appearance. However, with the sheer number of galaxy images available, it would be a daunting task to manually classify them all. To address this challenge, a novel Residual Neural Network (ResNet) model, called ResNet Var, that can automatically classify galaxy images is proposed in this study. Galaxy Zoo 2 dataset is used in this research, which contains over …
A Characterization Of Complex-Valued Random Variables With Rotationally-Invariant Moments, Michael L. Maiello
A Characterization Of Complex-Valued Random Variables With Rotationally-Invariant Moments, Michael L. Maiello
Rose-Hulman Undergraduate Mathematics Journal
A complex-valued random variable Z is rotationally invariant if the moments of Z are the same as the moments of W=e^{i*theta}Z. In the first part of the article, we characterize such random variables, in terms of "vanishing unbalanced moments," moment and cumulant generating functions, and polar decomposition. In the second part, we consider random variables whose moments are not necessarily finite, but which have a density. In this setting, we prove two characterizations that are equivalent to rotational invariance, one involving polar decomposition, and the other involving entropy. If a random variable has both a density and moments which determine …
Investigation Into Differences In Palatability Among Festulolium Varieties As Haylage, E. Touno, S. Kushibiki, H. Shingu, A. Oshibe
Investigation Into Differences In Palatability Among Festulolium Varieties As Haylage, E. Touno, S. Kushibiki, H. Shingu, A. Oshibe
IGC Proceedings (1993-2023)
In Japan, paddy fields that are no longer used for cultivation of rice are being converted to cultivation of forage crops. Therefore, grass with greater wet resistance and higher quality is required. Festulolium is an interspecific hybrid between the Lolium and Festuca species and combines the characteristics of high-quality ryegrass and resistance to hostile environments from fescues (Thomas & Humphreys, 1991). Among festulolium varieties, there is wide variation in environmental resistance and feeding value. One festulolium variety, Paulita, shows superior wet resistance to Evergreen and the total digestible nutrients of Evergreen was similar to that of cocksfoot (cv. Kitamidori) (Touno …