cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Laser-patterned submicron Bi2Se3-WS2 pixels with tunable circular polarization at room temperature
Creators: name: Hennighausen, Zachariah
name: Wickramaratne, Darshana
name: McCreary, Kathleen M.
name: Hudak, Bethany M.
name: Brintlinger, Todd
name: Chuang, Hsun-Jen
name: Noyan, Mehmet A.
name: Jonker, Berend T.
name: Stroud, Rhonda M.
name: Erve, Olaf M. vant
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Characterizing and manipulating the circular polarization of light is central to numerous emerging technologies, including spintronics and quantum computing. Separately, monolayer tungsten disulfide (WS2) is a versatile material that has demonstrated promise in a variety of applications, including single photon emitters and valleytronics. Here, we demonstrate a method to tune the photoluminescence (PL) intensity (factor of x161), peak position (38.4meV range), circular polarization (39.4% range), and valley polarization of a Bi2Se3-WS2 2D heterostructure using a low-power laser (0.762uW) in ambient. Changes are spatially confined to the laser spot, enabling submicron (814nm) features, and are long-term stable (>334 days). PL and valley polarization changes can be controllably reversed through laser exposure in vacuum, allowing the material to be erased and reused. Atmospheric experiments and first-principles calculations indicate oxygen diffusion modulates the exciton radiative vs. non-radiative recombination pathways, where oxygen absorption leads to brightening, and desorption to darkening.
description: Published: ACS Appl. Mater. Interfaces 2022
title: An Analytical Study of Word Processing in Selected Administrative Offices at Utah State University
Creators: name: Nielson, Lynnette T.
Publisher: name: Utah State University
Year: 1975

description: The purpose of this study was to analyze the word processing procedures in the offices of the President and Provost at Utah State University. Seven secretaries participated in the survey by completing a questionnaire and keeping a record of all typing and nontyping tasks performed during two nonconsecutive weeks.
A combined total of 9035 lines (average 12 words per line) of typing was completed by all workers. Ninety-nine percent of the typing was classified as text in format and originated in one of several ways including: copy type, shorthand, revision, self composition, machine dictation, and longhand.
Recommendations based on the data collected were made regarding the word processing system analyzed. Recommendations included the implementation of a semi-consolidated word processing system and the addition of standardized dictating equipment and a magnetic medium typewriter.
Katku ja koolera levikust Eestis
Creators: name: Jõgiste, Ants
name: Varjas, Juta
name: Rjabinina, Jelena
Publisher: name: OÜ Celsius Healthcare
Year: 2004
Subjects: katk, koolera, epideemiatõrje

description: Katk ja koolera on pälvinud inimkonna tähelepanu enam kui teised nakkushaigused. Põhjuseks on nende haiguste sage epideemiline levik ja sellega kaasnevad arvukad surmajuhud. Inimkond on varem olnud võrdlemisi abitu, võideldes nende nakkushaiguste vastu. Tänapäeval on katku ja koolera tõrje korraldatud rahvusvahelise koostööna, mis hõlbustab nakkuse leviku tõkestamist epideemia korral. Artikli eesmärgiks on anda ajalooline ülevaade katku ja koolera taudidest Eestis ning iseloomustada lühidalt nende haiguste levikut kaasajal. Mõlemad on eriti ohtlikud nakkushaigused ja kuuluvad nn karantiinhaiguste rühma.


Eesti Arst 2004; 83 (7): 463–467
description: Eesti Arst, Juuli 2004
title: The Effect of Time and Stress on the Heart Rate-Oxygen Consumption Relationship of Uinta Ground Squirrels
Creators: name: Oldfield, Thomas E.
Publisher: name: Utah State University
Year: 1975

description: Uinta ground squirrels (Spermophilus armatus) were instrumented with ECG radio-transmitters. Heart rate and oxygen consumption were monitored for one hour at ambient temperatures above, within and below the thermoneutral zone. These measures were made at predetermined intervals throughout the active season of squirrels to determine if the heart rate-oxygen consumption relationship was a stable linear regression within and between squirrels during this period. Heart rate and oxygen consumption were also monitored for squirrels exposed to artificial and natural stressors. These squirrels were then released in an outdoor enclosure. Heart rate and behavior of animals were monitored simultaneously during above and below ground activity.
Heart rate-oxygen consumption regressions were stable during measurements through a 25°C temperature range. Regressions of heart rate versus oxygen consumption did vary between and within squirrels over four days.
Heart rate tended to decrease initially after presentation of natural stressors. Heart rate tended to increase when artificial stressors were presented. Regressions of heart rate versus oxygen consumption for these stressors tended to be linear, but heart rate would not be a good predictor of oxygen consumption during rapid heart rate changes because, in most cases, heart rate-oxygen consumption regressions were not statistically significant.
In some tests with rapidly decreasing initial heart rates, the heart rate-oxygen consumption relationship was negative. that is, oxygen consumption remained constant as heart rate decreased. Possible causes of negative responses are discussed.
Heart rate responses generated in laboratory stress tests were similar to semi free-living heart rate responses. During the major portion of time spent above and below ground, heart rate of squirrels was found to be quite stable. During these periods, heart rate should be a reasonable predictor of oxygen consumption.
In summary, average heart rate should be a reasonable predictor of oxygen consumption of free-living squirrels over daily periods. In using this method, it would be necessary to calculate regressions of heart rate and oxygen consumption in the laboratory before and after free-living studies to examine the stability of the regression lines during this period. An average regression line could be used to compensate in part for a change of the heart rate-oxygen consumption relationship during study periods.
The fundamental limit on the rate of quantum dynamics: the unified bound is tight
Creators: name: Levitin, Lev B.
name: Toffoli, Tommaso
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The question of how fast a quantum state can evolve has attracted a considerable attention in connection with quantum measurement, metrology, and information processing. Since only orthogonal states can be unambiguously distinguished, a transition from a state to an orthogonal one can be taken as the elementary step of a computational process. Therefore, such a transition can be interpreted as the operation of "flipping a qubit", and the number of orthogonal states visited by the system per unit time can be viewed as the maximum rate of operation. A lower bound on the orthogonalization time, based on the energy spread DeltaE, was found by Mandelstam and Tamm. Another bound, based on the average energy E, was established by Margolus and Levitin. The bounds coincide, and can be exactly attained by certain initial states if DeltaE=E; however, the problem remained open of what the situation is otherwise. Here we consider the unified bound that takes into account both DeltaE and E. We prove that there exist no initial states that saturate the bound if DeltaE is not equal to E. However, the bound remains tight: for any given values of DeltaE and E, there exists a one-parameter family of initial states that can approach the bound arbitrarily close when the parameter approaches its limit value. The relation between the largest energy level, the average energy, and the orthogonalization time is also discussed. These results establish the fundamental quantum limit on the rate of operation of any information-processing system.
description: 4 pages 1 PS figure Latex
Self-emulsification in chemical and pharmaceutical technologies
Creators: name: Cholakova, D.
name: Vinarov, Z.
name: Tcholakova, S.
name: Denkov, N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The interest in the low energy self-emulsification techniques has exploded in the recent years, driven by three main trends: by the transition to "greener" technologies in both its aspects - less energy consumption and replacement of the petrochemicals by natural ingredients; by the costly and maintenance demanding equipment for nanoemulsification; and by the quest for efficient and robust self-emulsifying formulations for oral drug delivery. Here we first present a brief overview of the main known low-energy methods for nanoemulsion formation, focusing on their mechanistic understanding and discussing some recent advances in their development and applications. Next, we review three conceptually new approaches for self-emulsification in chemical technologies, discovered in the last several years. The colloidal features and the specific requirements of the self-emulsifying drug-delivery systems (SEDDS) are also discussed briefly. Finally, we summarize the current trends and the main challenges in this vivid research area.
BIGSALUD4: Report of dissemination actions
Creators: name: ITI, Instiuto Tecnológico de Informática
Publisher: name: Zenodo
Year: 2023
Subjects: HEALTH
RISK OF ADMISSION
MACHINE LEARNING
PREDICTIVE MODELS
IA
BIGSALUD4
2022

description: BIGSALUD4 aims to investigate Data Analysis and Artificial Intelligence (AI) techniques, mainly machine learning (ML) and deep learning (DL) with the purpose of bringing Artificial Intelligence to hospital practice, offering support to clinical staff in the decision-making process, making possible a better prognosis of health complications, a more personalized and effective treatment of patients and allowing hospitals to anticipate their needs.
description: BIGSALUD4. Project funded by the Valencian Institute of Business Competitiveness (IVACE) and European Union through the European Regional Development Fund (ERDF), within the public grant program adressed to Technological Institutes of the Valencian Community for the development of non-economic R&D projects carried out in cooperation with companies during 2022. File number: IMDEEA/2022/23
Quantum Computing Perspective for Electromagnetic Wave Propagation in Cold Magnetized Plasmas
Creators: name: Koukoutsis, Efstratios
name: Hizanidis, Kyriakos
name: Vahala, George
name: Soe, Min
name: Vahala, Linda
name: Ram, Abhay K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Electromagnetic waves are an inherent part of all plasmas -- laboratory fusion plasmas or astrophysical plasmas. The conventional methods for studying properties of electromagnetic waves rely on discretization of Maxwell equations suitable for implementing on classical, present day, computers. The traditional methodology is not efficient for quantum computing implementation -- a future computational source offering a tantalizing possibility of enormous speed up and a significant reduction in computational cost. This paper addresses two topics relevant to implementing Maxwell equations on a quantum computer. The first is on formulating a quantum Schrodinger representation of Maxwell equations for wave propagation in a cold, inhomogeneous, magnetized plasma. This representation admits unitary, energy preserving, evolution and conveniently lends itself to appropriate discretization for a quantum computer. Riding on the coattails of these results, the second topic is on developing a sequence of unitary operators which form the basis for a qubit lattice algorithm (QLA). The QLA, suitable for quantum computers, can be implemented and tested on existing classical computers for accuracy as well as scaling of computational time with the number of available processors. In order to illustrate the QLA for Maxwell equations, results are presented from a time evolving, full wave simulation of propagation and scattering of an electromagnetic wave packet by non-dispersive dielectric medium localized in space.
description: 13 Pages, 4 Figures A complexity analysis on the quantum implementation of QLA has been added along with a relocation of the sub-sections for coherence purposes
title: Opinions of Logan City Residents Towards the Bear River District Health Department
Creators: name: Borrowman, Darrell R.
Publisher: name: Utah State University
Year: 1976

description: The purpose of this study was to determine the opinions and perceptions of the residents of Logan, Utah, concerning the role and responsibilities of the Bear River District Health Department, and whether those opinions and perceptions differed among low, middle and high income families; among residents having a high school degree or less, a bachelor's degree or less, or a graduate degree o r less; and among men and women. A survey instrument was administered to a stratified random sample of 150 residents.
The data collected indicated that: (1) the majority of the resident s of Logan, Utah, we re not aware of the functions and services of the Bear River District Health Department. This level of awareness was inversely proportional to income level, (2) the majority of residents of Logan, Utah, felt that the Bear River District Health Department was fulfilling it 's role and responsibilities to the community, and (3) the majority of residents of Logan, Utah, do not utilize the services of the Bear River District Health Department to meet their health needs, but rely on some other agency or professional to meet those needs. This tendency was directly proportional to income level, with low income residents relying on the health department for services to a greater degree than high income residents.
Entropy inference and the James-Stein estimator, with application to nonlinear gene association networks
Creators: name: Hausser, Jean
name: Strimmer, Korbinian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We present a procedure for effective estimation of entropy and mutual information from small-sample data, and apply it to the problem of inferring high-dimensional gene association networks. Specifically, we develop a James-Stein-type shrinkage estimator, resulting in a procedure that is highly efficient statistically as well as computationally. Despite its simplicity, we show that it outperforms eight other entropy estimation procedures across a diverse range of sampling scenarios and data-generating models, even in cases of severe undersampling. We illustrate the approach by analyzing E. coli gene expression data and computing an entropy-based gene-association network from gene expression data. A computer program is available that implements the proposed shrinkage estimator.
description: 18 pages, 3 figures, 1 table
Revivals, classical periodicity, and zitterbewegung of electron currents in monolayer graphene
Creators: name: Romera, Elvira
name: Santos, Francisco de los
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Revivals of electric current in graphene in the presence of an external magnetic field are described. It is shown that when the electrons are prepared in the form of wave packets assuming a Gaussian population of only positive (or negative) energy Landau levels, the presence of the magnetic field induce revivals of the electron currents, besides the classical cyclotron motion. When the population comprises both positive and negative energy Landau levels, revivals of the electric current manifest simultaneously with zitterbewegung and the classical cyclotron motion. We relate the temporal scales of these three effects and discuss to what extent these results hold for real graphene samples.
Reducing defect production in random transverse-field Ising chains by inhomogeneous driving fields
Creators: name: Juhász, R.
name: Roósz, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In transverse-field Ising models, disorder in the couplings gives rise to a drastic reduction of the critical energy gap and, accordingly, to an unfavorable, slower-than-algebraic scaling of the density of defects produced when the system is driven through its quantum critical point. By applying Kibble-Zurek theory and numerical calculations, we demonstrate in the one-dimensional model that the scaling of defect density with annealing time can be made algebraic by balancing the coupling disorder with suitably chosen inhomogeneous driving fields. Depending on the tail of the coupling distribution at zero, balancing can be either perfect, leading to the well-known inverse-square law of the homogeneous system, or partial, still resulting in an algebraic decrease but with a smaller, non-universal exponent. We also study defect production during an environment-temperature quench of the open variant of the model in which the system is slowly cooled down to its quantum critical point. According to our scaling and numerical results, balanced disorder leads again to an algebraic temporal decrease of the defect density.
description: 12 pages, 6 figures
title: An Evaluation of the Success Factors in Two Utah Secondary Vocational Programs
Creators: name: Oleole, Allan B.
Publisher: name: Utah State University
Year: 1975

description: The purpose of this paper is to formulate an evaluative instrument that can be used to interpret the follow-up data collected by the Utah State Board of Education on the vocational programs in the secondary schools of Utah. Evaluative instruments that were developed by private and state institutions were used as references for formulating the evaluative instrument used in this study. The paper also identifies the factors that can make a vocational program successful. This was accomplished by identifying all Utah high schools that have a consistently high rate of vocational success and then determining if the programs in these schools are unique in some way and thereby contribute to the success of vocational education. To test the evaluative instrument developed and to determine what the success factors are, a two school pilot study was conducted and interpreted.
title: Electroacoustic Impedance Measurements: A Learning Packet
Creators: name: Cevette, Michael J.
Publisher: name: Utah State University
Year: 1976

description: The purpose of this paper is to provide an instructional format in the presentation of the clinical application of electroacoustic impedance measurements. Journal articles and impedance procedural booklets were used as a source of data for the information contained in the learning packet. Fundamentals of acoustic theory were treated to show the conceptual relationship of acoustic impedance and acoustic admittance. The terminology, normative data, and clinical interpretation of static acoustic impedance measures were examined. Diagnostically significant variables of the tympanogram were related to the audiometric-medical status of the patient. Clinical application of the acoustic reflex was investigated through descriptions of various pathologies and the particular indications expected in acoustic reflex testing for those pathologies. The learning packet is divided into four sections: impedance versus admittance, static acoustic impedance measurements, tympanometry, and acoustic reflex.
The First Galaxies: Signatures of the Initial Starburst
Creators: name: Johnson, Jarrett L.
name: Greif, Thomas H.
name: Bromm, Volker
name: Klessen, Ralf S.
name: Ippolito, Joseph
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Detection of the radiation emitted from the first galaxies at z > 10 will be made possible in the next decade, with the launch of the James Webb Space Telescope (JWST). We carry out cosmological radiation hydrodynamics simulations of Population III (Pop III) starbursts in a 10^8 M_Sun dwarf galaxy at z = 12.5. For different star formation efficiencies and stellar initial mass functions (IMFs), we calculate the luminosities and equivalent widths (EWs) of the recombination lines H_alpha, Ly_alpha, and He II 1640, under the simple assumption that the stellar population does not evolve over the first ~3 Myr of the starburst. Although only < 40 percent of the gas in the central 100 pc of the galaxy is photoionized, we find that photoheating by massive stars causes a strong dynamical response, which results in a weak correlation between luminosity emitted in hydrogen recombination lines and the total mass in stars. However, owing to the low escape fraction of He II-ionizing photons, the luminosity emitted in He II 1640 is much more strongly correlated with the total stellar mass. The ratio of the luminosity in He II 1640 to that in Ly_alpha or H_alpha is found to be a good indicator of the IMF in many cases. The ratio of observable fluxes is F_1640/F_Halpha ~ 1 for clusters of 100 M_Sun Pop III stars and F_1640/F_Halpha ~ 0.1 for clusters of 25 M_Sun Pop III stars. The EW of the He II 1640 emission line is the most reliable IMF indicator, its value varying between ~ 20 and ~ 200 angstrom for a massive and very massive Pop III IMF, respectively. Even the bright, initial stages of Pop III starbursts in the first dwarf galaxies will likely not be directly detectable by the JWST. Instead, the JWST may discover only more massive, and hence more chemically evolved, galaxies which host normal, Pop I/II, star formation.
description: 13 pages, 10 figures; accepted for publication in MNRAS
Why do Angular Margin Losses work well for Semi-Supervised Anomalous Sound Detection?
Creators: name: Wilkinghoff, Kevin
name: Kurth, Frank
Publisher: name: arXiv
Year: 2023
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: State-of-the-art anomalous sound detection systems often utilize angular margin losses to learn suitable representations of acoustic data using an auxiliary task, which usually is a supervised or self-supervised classification task. The underlying idea is that, in order to solve this auxiliary task, specific information about normal data needs to be captured in the learned representations and that this information is also sufficient to differentiate between normal and anomalous samples. Especially in noisy conditions, discriminative models based on angular margin losses tend to significantly outperform systems based on generative or one-class models. The goal of this work is to investigate why using angular margin losses with auxiliary tasks works well for detecting anomalous sounds. To this end, it is shown, both theoretically and experimentally, that minimizing angular margin losses also minimizes compactness loss while inherently preventing learning trivial solutions. Furthermore, multiple experiments are conducted to show that using a related classification task as an auxiliary task teaches the model to learn representations suitable for detecting anomalous sounds in noisy conditions. Among these experiments are performance evaluations, visualizing the embedding space with t-SNE and visualizing the input representations with respect to the anomaly score using randomized input sampling for explanation.
A structural comparison of models of colloid-polymer mixtures
Creators: name: Taffs, Jade
name: Malins, Alex
name: Williams, Stephen R.
name: Royall, C. Patrick
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the structure of colloidal fluids with reference to colloid-polymer mixtures. We compare the one component description of the Asakura-Oosawa (AO) idealisation of colloid-polymer mixtures with the full two-component model. We also consider the Morse potential, a variable range interaction, for which the ground state clusters are known. Mapping the state points between these systems, we find that the pair structure of the full AO model is equally well described by the Morse potential or the one component AO approach. We employ a recently developed method to identify in the bulk fluid the ground state clusters relevant to the Morse potential. Surprisingly, when we measure the cluster populations, we find that the Morse fluid is significantly closer the full AO fluid than the one component AO description.
description: 13 pages, accepted by J. Phys. Condens: Matter special issue for CECAM meeting 'New Trends in Simulating Colloids: from Models to Applications'
On numerical approximation in synthesis for prescribed amplitude response
Creators: name: Harris, Walter James Henry
Publisher: name: University of British Columbia
Year: 2011

description: This thesis describes a new method of obtaining suitable equal-ripple rational functions for use in the synthesis of networks. It has two principal advantages over other methods used for this purpose. Firstly, it is capable of finding the best approximation to a given magnitude function, phase function or both simultaneously. The error of approximation may be weighted as desired at any frequency in the range of approximation. Secondly, it is easily adapted for use on anautomatic computer. This enables quick comparison of the approximations produced by using rational functions of different orders of complexity.
title: A Statistical Analysis of Apprentice Program Dropouts and Completers in Utah: 1969-1974
Creators: name: Randle, Mark Douglas
Publisher: name: Utah State University
Year: 1975

description: The purpose of this study is to examine a sample of former Utah apprentices who either completed or dropped out of a registered apprenticeship program during the five-year period from 1969 to 1974. Comparisons were made between the dropouts and completers in order to determine how the two groups differed and what factors influenced their decisions to complete or cancel their indentures.
Significant differences were found between the two groups with respect to their opinions of the training they received as apprentices. Especially significant differences were seen between the dropouts; and completers' responses to the questions related to their on-the-job training.
The study concludes with a discussion of the implications of the findings for the future course of action to be pursued by apprenticeship labor officials in the state.
Arvi Vask: Eesti tervishoiu võtmeküsimus on, kuidas hoida arstide motivatsiooni
Creators: name: Nahkur, Siim
Publisher: name: OÜ Celsius Healthcare
Year: 2013

description: Eesti Arst 2013; 92(6):306–308
description: Eesti Arst, Juuni 2013
title: The Foods and Feeding Habits of Botulism Intoxicated and Healthy Waterbirds on the Bear River Refuge, Utah with Emphasis on the American Avocet and Blacknecked Stilt
Creators: name: Wilson, George W.
Publisher: name: Utah State University
Year: 1973

description: Primary objectives of this study were: (1) to compare the food habits of healthy and botulism intoxicated American avocets and blacknecked stilts for qualitative and quantitative differences, (2) to determine which invertebrates found in the tracts of intoxicated and healthy birds contained type C toxin, and (3) to explain apparent susceptibilities among different sexes, ages and species of birds.
Based on percent utilization and occurrence of food items in the esophagus, the diets of healthy and intoxicated birds were similar. However, intoxicated avocets consumed higher proportions of Gastropoda and intoxicated stilts more Hydrophilidae larvae than did healthy birds. Because of similarities in diets of healthy and intoxicated birds, birds probably became intoxicated from eating randomly toxic foods and not because of differences in diet or food preference.
Examinations of esophageal contents of avocets and stilts better described recently consumed food items than did examinations of gizzard contents. Soft-bodied invertebrates were rendered unidentifiable in the gizzard. The esophageal contents of juvenile avocets and stilts contained greater proportions of animal matter than did those of adults.
Only three of 86 food samples analyzed were definitely positive for type C botulism toxin. These were: one sample of Tendipedidae larvae and two of pooled gizzard contents which included fragments of Corixidae, Hydrophilidae adults, seeds and vegetative fibers.
Only three of 86 food samples analyzed were definitely positive for type C botulism toxin. These were: one sample of Tendipedidae larvae and two of pooled gizzard contents which included fragments of Corixidae, Hydrophilidae adults, seeds and vegetative fibers.
5G Enabled Fault Detection and Diagnostics: How Do We Achieve Efficiency?
Creators: name: Hu, Peng
name: Zhang, Jinhuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The 5th-generation wireless networks (5G) technologies and mobile edge computing (MEC) provide great promises of enabling new capabilities for the industrial Internet of Things. However, the solutions enabled by the 5G ultra-reliable low-latency communication (URLLC) paradigm come with challenges, where URLLC alone does not necessarily guarantee the efficient execution of time-critical fault detection and diagnostics (FDD) applications. Based on the Tennessee Eastman Process model, we propose the concept of the communication-edge-computing (CEC) loop and a system model for evaluating the efficiency of FDD applications. We then formulate an optimization problem for achieving the defined CEC efficiency and discuss some typical solutions to the generic CEC-based FDD services, and propose a new uplink-based communication protocol called "ReFlexUp". From the performance analysis and numerical results, the proposed ReFlexUp protocol shows its effectiveness compared to the typical protocols such as Selective Repeat ARQ, HARQ, and "Occupy CoW" in terms of the key metrics such as latency, reliability, and efficiency. These results are further convinced from the mmWave-based simulations in a typical 5G MEC-based implementation.
Groups possessing extensive hierarchical decompositions
Creators: name: Januszkiewicz, T.
name: Kropholler, P. H.
name: Leary, I. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57S30; 20J05

description: Kropholler's class of groups is the smallest class of groups which contains all finite groups and is closed under the following operator: whenever $G$ admits a finite-dimensional contractible $G$-CW-complex in which all stabilizer groups are in the class, then $G$ is itself in the class. Kropholler's class admits a hierarchical structure, i.e., a natural filtration indexed by the ordinals. For example, stage 0 of the hierarchy is the class of all finite groups, and stage 1 contains all groups of finite virtual cohomological dimension. We show that for each countable ordinal $α$, there is a countable group that is in Kropholler's class which does not appear until the $α+1$st stage of the hierarchy. Previously this was known only for $α= 0$, 1 and 2. The groups that we construct contain torsion. We also review the construction of a torsion-free group that lies in the third stage of the hierarchy.
description: 9 pages
Bayesian predictive densities for linear regression models under alpha-divergence loss: some results and open problems
Creators: name: Maruyama, Yuzo
name: Strawderman, William E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62C20, 62J07

description: This paper considers estimation of the predictive density for a normal linear model with unknown variance under alpha-divergence loss for -1 <= alpha <= 1. We first give a general canonical form for the problem, and then give general expressions for the generalized Bayes solution under the above loss for each alpha. For a particular class of hierarchical generalized priors studied in Maruyama and Strawderman (2005, 2006) for the problems of estimating the mean vector and the variance respectively, we give the generalized Bayes predictive density. Additionally, we show that, for a subclass of these priors, the resulting estimator dominates the generalized Bayes estimator with respect to the right invariant prior when alpha=1, i.e., the best (fully) equivariant minimax estimator.
Planetary Influences on the Solar Cycle: A Nonlinear Dynamics Approach
Creators: name: Muñoz, Juan M.
name: Wagemakers, Alexandre
name: Sanjuán, Miguel A. F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We explore the effect of some simple perturbations on three chaotic models proposed to describe large scale solar behavior via the solar dynamo theory: the Lorenz and the Rikitake systems, and a Van der Pol-Duffing oscillator. Planetary magnetic fields affecting the solar dynamo activity have been simulated by using harmonic perturbations. These perturbations introduce cycle intermittency and amplitude irregularities revealed by the frequency spectra of the nonlinear signals. Furthermore, we have found that the perturbative intensity acts as an order parameter in the correlations between the system and the external forcing. Our findings suggest a promising avenue to study the sunspot activity by using nonlinear dynamics methods.
The Soil Sentinel - Issue 8
Creators: name: Loades, Kenneth
name: Hargreaves, Paul
Publisher: name: Zenodo
Year: 2024

description: The Soil Sentinel was produced as part of the Healthy Soils (JHI-D3-1) project with input from CentrePeat (JHI-D3-2) and the Achieving Multi-Purpose Nature Based Solutions (AiM NBS) (JHI-D2-2) project. We acknowledge funding through the Rural & Environment Science & Analytical Services Division of the Scottish Government. The Soil Sentinel is published every 4 months throughout the project duration, 2022-2027
Quantum spin nematic phase in a square-lattice iridate
Creators: name: Kim, Hoon
name: Kim, Jin-Kwang
name: Kim, Jimin
name: Kim, Hyun-Woo J.
name: Ha, Seunghyeok
name: Kim, Kwangrae
name: Lee, Wonjun
name: Kim, Jonghwan
name: Cho, Gil Young
name: Heo, Hyeokjun
name: Jang, Joonho
name: Strempfer, J.
name: Fabbris, G.
name: Choi, Y.
name: Haskel, D.
name: Kim, Jungho
name: Kim, J. -W.
name: Kim, B. J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Spin nematic (SN) is a magnetic analog of classical liquid crystals, a fourth state of matter exhibiting characteristics of both liquid and solid. Particularly intriguing is a valence-bond SN, in which spins are quantum entangled to form a multi-polar order without breaking time-reversal symmetry, but its unambiguous experimental realization remains elusive. Here, we establish a SN phase in the square-lattice iridate Sr$_2$IrO$_4$, which approximately realizes a pseudospin one-half Heisenberg antiferromagnet (AF) in the strong spin-orbit coupling limit. Upon cooling, the transition into the SN phase at T$_C$ $\approx$ 263 K is marked by a divergence in the static spin quadrupole susceptibility extracted from our Raman spectra, and concomitant emergence of a collective mode associated with the spontaneous breaking of rotational symmetries. The quadrupolar order persists in the antiferromagnetic (AF) phase below T$_N$ $\approx$ 230 K, and becomes directly observable through its interference with the AF order in resonant x-ray diffraction, which allows us to uniquely determine its spatial structure. Further, we find using resonant inelastic x-ray scattering a complete breakdown of coherent magnon excitations at short-wavelength scales, suggesting a resonating-valence-bond-like quantum entanglement in the AF state. Taken together, our results reveal a quantum order underlying the Néel AF that is widely believed to be intimately connected to the mechanism of high temperature superconductivity (HTSC).
description: Published in https://www.nature.com/articles/s41586-023-06829-4
Estimating linear radiance indicators from the zenith night sky brightness: on the Posch ratio for natural and light polluted skies
Creators: name: Bará, Salvador
name: Pérez-Couto, Xabier
name: Falchi, Fabio
name: Kocifaj, Miroslav
name: Masana, Eduard
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Estimating the horizontal irradiance from measurements of the zenith night sky radiance is a useful operation for basic and applied studies in observatory site assessment, atmospheric optics and environmental sciences. The ratio between these two quantities, also known as Posch ratio, has been previously studied for some canonical cases and reported for a few observational sites. In this work we (a) generalize the Posch ratio concept, extending it to any pair of radiance-related linear indicators, (b) describe its main algebraic properties, and (c) provide analytical expressions and numerical evaluations for its three basic nighttime components (moonlight, starlight and other astrophysical light sources, and artificial light). We show that the horizontal irradiance (or any other linear radiance indicator) is generally correlated with the zenith radiance, enabling its estimation from zenith measurements if some a priori information on the atmospheric state is available.
description: 23 pages, 5 figures. This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record will be available online at doi:10.1093/mnras/stac410
title: Evaluation of Yield, Yield Components and Other Agronomic Characteristics in Mixtures of Wheat and Barley
Creators: name: Villarroel-Arispe, Hugo
Publisher: name: Utah State University
Year: 1973

description: Inia 66 and Siete Cerros wheat varieties, and Steveland and Woodvale barley varieties were grown in mixtures and in pure stands for two years in irrigated nurseries at Logan. These four varieties were also grown the first year in a dryland nursery at Blue Creek. Another set of four varieties was used the second year in the dryland nursery. These four varieties as well as the first set, were tested in seven combinations, with the following percentages of one barley and one wheat variety : 100:0, 90:10, 75:25, 50:50, 25:75, 10:90, and 0:100.
Grain yield of mixtures was higher than that of the mid-component value in most cases and was higher than that of the best component in a few cases. Only a few of the observed differences were statistically significant.
All mixtures had significantly lower test weight than that of the best component. Ninety percent of the mixtures were significantly lower in test weight than the mid-component value.
Tillering of both wheat varieties consistently decreased as the percentage of wheat in the seeded mixture decreased. Conversely, tillering in barley increased as the percentage of barley in the seeded mixture decreased.
Most of the mixtures showed an excess of barley in the harvested crop, compared to that in the seeded mixture. These excesses were usually greatest around the 50:50 mixture level.
A consistent pattern of slight increase in kernel weight of barley was observed as the amount of barley decreased in the seeded mixture. Wheat showed the reverse situation. None of these differences were statistically significant.
Inter-relationships among yield components were evaluated by simple correlation coefficients. The correlations were subdivided into direct and indirect effects by the use of path coefficient analyses. Correlation coefficients and path coefficients showed consistent changes as the percentage of crop mixtures changed. Coefficients of determination for both wheat and barley decreased as the percentage of that crop in the seeded mixture was decreased.
Photon wave function and zitterbewegung
Creators: name: Wang, Zhi-Yong
name: Xiong, Cai-Dong
name: Qiu, Qi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In terms of a photon wave function corresponding to the (1, 0)+(0, 1) representation of the Lorentz group, the radiation and Coulomb fields within a source-free region can be described unitedly by a Lorentz-covariant Dirac-like equation. In our formalism, the relation between the positive- and negative-energy solutions of the Dirac-like equation corresponds to the duality between the electric and magnetic fields, rather than to the usual particle-antiparticle symmetry. The zitterbewegung (ZB) of photons is studied via the momentum vector of the electromagnetic field, which shows that only in the presence of virtual longitudinal and scalar photons, the ZB motion of photons can occur, and its vector property is described by the polarization vectors of the electromagnetic field.
description: 26 pages, no figure, to be published in Physical Review A
Effective electrical conductivity of random resistor networks generated using a Poisson--Voronoi tessellation
Creators: name: Tarasevich, Yuri Yu.
name: Vodolazskaya, Irina V.
name: Eserkepov, Andrei V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We studied the effective electrical conductivity of dense random resistor networks (RRNs) produced using a Voronoi tessellation when its seeds are generated by means of a homogeneous Poisson point process in the two-dimensional Euclidean space. Such RRNs are isotropic and in average homogeneous, however, local fluctuations of the number of edges per unit area are inevitably. These RRNs may mimic, e.g., crack-template-based transparent conductive films. The RRNs were treated within a mean-field approach (MFA). We found an analytical dependency of the effective electrical conductivity on the number of conductive edges (resistors) per unit area, $n_\text{E}$. The effective electrical conductivity is proportional to $\sqrt{n_\text{E}}$ when $n_\text{E} \gg 1$.
description: 4 pages, 2 figures, 17 references, Applied Physics Letters (accepted)
Patsiendiportaalide avamine e-tervise teenuste pakkujatele on uus suundumus tervise infosüsteemide arendamisel
Creators: name: Nahkur, Siim
Publisher: name: OÜ Celsius Healthcare
Year: 2013

description: Eesti Arst 2013; 92(6):310–311
description: Eesti Arst, Juuni 2013
title: Attitudes of Male Students and Their Parents Toward Physical Education at Logan Junior High School, Logan, Utah
Creators: name: Stover, Paul E.
Publisher: name: Utah State University
Year: 1975

description: The opinions of male students at Logan Junior High School and their parents were analyzed to determine attitudes toward physical education and the existing physical education program at the school. The data was obtained by the use of a questionnaire given to 458 boys and their parents.
Students of all three grades and the parents of all three classes indicated a positive attitude toward physical education and also toward the existing physical education program at Logan Junior High School. Ninth-graders showed the most favorable attitude of the student groups toward physical education. Parents of eighth-graders were the strongest supporters from the parent groups. The most favorable attitude toward the existing program from the students was accumulated by the ninth-grade boys, and the parents of seventh graders were the strongest supporters among the three parent groups. In addition, each of the six groups was overwhelmingly in favor of the intramural program.
Basketball, flag football, and European handball were the three most liked activities. Calisthenics, relays, and Color Achievement were the least liked activities.
Relaxation due to random collisions with a many-qudit environment
Creators: name: Gennaro, Giuseppe
name: Benenti, Giuliano
name: Palma, G. Massimo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the dynamics of a system qudit of dimension mu sequentially interacting with the nu-dimensional qudits of a chain playing the ore of an environment. Each pairwise collision has been modeled as a random unitary transformation. The relaxation to equilibrium of the purity of the system qudit, averaged over random collisions, is analytically computed by means of a Markov chain approach. In particular, we show that the steady state is the one corresponding to the steady state for random collisions with a single environment qudit of effective dimension nu_e=nu*mu. Finally, we numerically investigate aspects of the entanglement dynamics for qubits (mu=nu=2) and show that random unitary collisions can create multipartite entanglement between the system qudit and the qudits of the chain.
description: 7 pages, 6 figures
title: Determining a Crop Production Function for Corn as Influenced by Irrigation and Salinity Levels
Creators: name: Sullivan, Timothy E.
Publisher: name: Utah State University
Year: 1975

description: Production functions were generated for dry matter and grain yields of corn, A continuous variable plot design replicated four times was established in the spring of 1974 in Vernal, Utah. Each replication included ten salt treatments and twenty irrigation levels. The salt treatments resulted in an average root zone salinity ranging from 2 . 7 to 14.9 mmho s/cm. Irrigation levels ranged from 4.2 to 45.0cm of water applied. Dry matter (Kg/ha) yield showed an 83 percent reduction over the range of salt applied and a 52 percent reduction over the range of water applied. Grain yield declined 96 and 64 percent over the range of salt and water applied, respectively . Salinity sensors produced results corresponding closely to measurements taken from the saturation extract of soil samples . Thermocouple psychrometers and a four probe resistivity meter produced results inconsistant with those of the soil samples.