cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exact Analytical Solution of the One-Dimensional Time-Dependent Radiative Transfer Equation with Linear Scattering
Creators: name: Allaxwerdian, Vladimir
name: Naumov, Dmitry V.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: High Energy Physics - Experiment (hep-ex)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The radiative transfer equation (RTE) is a cornerstone for describing the propagation of electromagnetic radiation in a medium, with applications spanning atmospheric science, astrophysics, remote sensing, and biomedical optics. Despite its importance, an exact analytical solution to the RTE has remained elusive, necessitating the use of numerical approximations such as Monte Carlo, discrete ordinate, and spherical harmonics methods.
 In this paper, we present an exact solution to the one-dimensional time-dependent RTE. We delve into the moments of the photon distribution, providing a clear view of the transition to the diffusion regime. This analysis offers a deeper understanding of light propagation in the medium.
 Furthermore, we demonstrate that the one-dimensional RTE is equivalent to the Klein-Gordon equation with an imaginary mass term determined by the inverse reduced scattering length. Contrary to naive expectations of superluminal solutions, we find that our solution is strictly causal under appropriate boundary conditions, determined by the light transport problem.
 We validate the found solution using Monte Carlo simulations and benchmark the performance of the latter. Our analysis reveals that even for highly forward scattering, dozens of random light scatterings are required for an accurate estimate, underscoring the complexity of the problem.
 Moreover, we propose a method for faster convergence by adjusting the parameters of Monte Carlo sampling. We show that a Monte Carlo method sampling photon scatterings with input parameters $(μ_s,g)$, where $μ_s$ is the inverse scattering length and $g$ is the scattering anisotropy parameter, is equivalent to that with $(μ_s(1-g)/2,-1)$. This equivalence leads to a significantly faster convergence to the exact solution, offering a substantial improvement of the Monte Carlo method for the one-dimensional RTE.
Scoping review of efficacy and safety of low-dose diuretics for patients with heart failure with preserved ejection fraction
Creators: name: Singh, Arushi
name: Khan, Sadiya Sana
name: Huffman, Mark D
name: Agarwal, Anubha
name: Shah, Sanjiv J
name: Wafford, Q. Eileen
Publisher: name: DigitalHub. Galter Health Sciences Library & Learning Center
Year: 2019
Subjects: subject: Scoping Review
subject: Heart failure with preserved ejection fraction
subject: Polydiuretic
subject: Heart Failure, Diastolic
subject: Diuretics
subject: Heart Failure, Diastolic/drug therapy

description: HFpEF Polydiuretic Scoping Review Protocol
Fragility of Time-Reversal Symmetry Protected Topological Phases
Creators: name: McGinley, Max
name: Cooper, Nigel R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The second law of thermodynamics points to the existence of an `arrow of time', along which entropy only increases. This arises despite the time-reversal symmetry (TRS) of the microscopic laws of nature. Within quantum theory, TRS underpins many interesting phenomena, most notably topological insulators and the Haldane phase of quantum magnets. Here, we demonstrate that such TRS-protected effects are fundamentally unstable against coupling to an environment. Irrespective of the microscopic symmetries, interactions between a quantum system and its surroundings facilitate processes which would be forbidden by TRS in an isolated system. This leads not only to entanglement entropy production and the emergence of macroscopic irreversibility, but also to the demise of TRS-protected phenomena, including those associated with certain symmetry-protected topological phases. Our results highlight the enigmatic nature of TRS in quantum mechanics, and elucidate potential challenges in utilising topological systems for quantum technologies.
description: 3 + 4 Pages, 1 Figure. Accepted version
Dynamic switching of ferrocene and plasmonic interactions in Au/self-assembled monolayer/single Ag nanocube molecular junctions
Creators: name: Youssef, Mariem Ben
name: Poungsripong, Peeranuch
name: Bidotti, Hugo
name: Abdoul-Yasset, Halidou
name: Gigmes, Didier
name: Margeat, Olivier
name: Siacca, Beniamino
name: Rouzo, Judikael Le
name: Duche, David
name: Vuillaume, Dominique
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We report the redox switching of ferrocene moieties embedded in a double tunnel barrier plasmonic cavity fabricated from a click-chemistry self-assembled monolayers of ferrocenyl-alkylthiol on ultra flat gold surfaces, connected to a single poly(vinylpyrrolidone) capped silver nanocube, AgNC, which is contacted by the tip of a conductive-AFM to study the electron transport properties in the dark and under light irradiation at the plasmonic resonance wavelengths. We observe a dual behavior in the current-voltage (I-V) characteristics in the dark: a large hysteresis loop at positive voltages and an hysteretic negative differential conductance (NDC) at negative voltages, due to the redox switching of ferrocene between its oxidized (Fc+) and neutral (Fc0) states. The I-V curves are analyzed by a generalized combined Marcus-Landauer model. We determine the highest occupied molecular orbital of the Fc+ and Fc0 states at 0.54 and 0.42 eV below the Fermi energy, respectively, with a weak reorganization energy < 0.1 eV upon switching. Under plasmonic excitation, the hysteresis and NDC behaviors are no longer observed and the I-V characteristics of the Au-ferrocenyl-alkylthiol/AgNC junctions become similar to Au-ferrocenyl-alkylthiol SAMs. A virtual molecular orbital due to the plasmon-induced coupling (fast electron transfer) between the two redox states of the Fc is determined at 0.46 eV. This dynamic behavior opens perspectives in artificial synaptic devices for neuromorphic computing with the additional function to turn on/off this synaptic behavior on-demand by light.
description: Full manuscript (revised) with the supporting information
Two-drug discrimination within the taste aversion baseline of drug discrimination learning
Creators: name: Kautz, Mary A.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: Typical drug discrimination learning (DDL) uses an operant design in which subjects are trained to respond differentially based on the presence or absence of a drug. One non-operant procedure has emerged which utilizes a modification of the conditioned taste aversion (CTA) design. Since the initial assessment of DDL, a number of studies have demonstrated the ability of drugs to serve a discriminative function within the taste aversion baseline; however, the specific discrimination acquired to date, i.e., drug vs. vehicle, may limit the conclusions that can be reached and the pharmacological questions that can be asked. Operant designs have circumvented these limitations by training one group of subjects to discriminate between two drugs. Given the rapidity and sensitivity of the CTA baseline of DDL, the present study examined whether a conditional discrimination with two drugs and two tastes could be established within the same subjects using the taste aversion baseline. Specifically, animals were initially injected with pentobarbital prior to a saccharin (Sacc)-lithium chloride (LiCl) pairing and with amphetamine prior to a sodium chloride (NaCl)-LiCl pairing to determine whether both drugs could serve as discriminative stimuli within the taste aversion procedure. Following this, conditional discrimination training was initiated in which the procedure was identical to that noted above except pentobarbital was also given prior to NaCl and amphetamine was also given prior to Sacc. On these days, no subsequent injections were given. Under these conditions, animals acquired the conditional discrimination, displaying differential levels of consumption of both fluids dependent on the drug administered prior to Sacc/NaCl access. In subsequent probes, ethanol and cocaine (drugs from the same pharmacological class as pentobarbital and amphetamine, respectively) produced drug-appropriate responding specific to pentobarbital and amphetamine, respectively. Although several issues are addressed concerning the general utility of this procedure, the present study nevertheless extends the methodological modifications of the basic taste aversion baseline and may allow for other analyses and other questions that reveal more information regarding the stimulus properties of drugs.
Gravitational Shielding Effects in Gauge Theory of Gravity
Creators: name: Wu, Ning
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In 1992, E.E.Podkletnov and R.Nieminen find that, under certain conditions, ceramic superconductor with composite structure has revealed weak shielding properties against gravitational force. In classical Newton's theory of gravity and even in Einstein's general theory of gravity, there are no grounds of gravitational shielding effects. But in quantum gauge theory of gravity, the gravitational shielding effects can be explained in a simple and natural way. In quantum gauge theory of gravity, gravitational gauge interactions of complex scalar field can be formulated based on gauge principle. After spontaneous symmetry breaking, if the vacuum of the complex scalar field is not stable and uniform, there will be a mass term of gravitational gauge field. When gravitational gauge field propagates in this unstable vacuum of the complex scalar field, it will decays exponentially, which is the nature of gravitational shielding effects. The mechanism of gravitational shielding effects is studied in this paper, and some main properties of gravitational shielding effects are discussed.
description: 13 pages, no figure
Two-drug discrimination within the taste aversion baseline of drug discrimination learning
Creators: name: Kautz, Mary A.
Publisher: name: American University
Year: 2023

description: Typical drug discrimination learning (DDL) uses an operant design in which subjects are trained to respond differentially based on the presence or absence of a drug. One non-operant procedure has emerged which utilizes a modification of the conditioned taste aversion (CTA) design. Since the initial assessment of DDL, a number of studies have demonstrated the ability of drugs to serve a discriminative function within the taste aversion baseline; however, the specific discrimination acquired to date, i.e., drug vs. vehicle, may limit the conclusions that can be reached and the pharmacological questions that can be asked. Operant designs have circumvented these limitations by training one group of subjects to discriminate between two drugs. Given the rapidity and sensitivity of the CTA baseline of DDL, the present study examined whether a conditional discrimination with two drugs and two tastes could be established within the same subjects using the taste aversion baseline. Specifically, animals were initially injected with pentobarbital prior to a saccharin (Sacc)-lithium chloride (LiCl) pairing and with amphetamine prior to a sodium chloride (NaCl)-LiCl pairing to determine whether both drugs could serve as discriminative stimuli within the taste aversion procedure. Following this, conditional discrimination training was initiated in which the procedure was identical to that noted above except pentobarbital was also given prior to NaCl and amphetamine was also given prior to Sacc. On these days, no subsequent injections were given. Under these conditions, animals acquired the conditional discrimination, displaying differential levels of consumption of both fluids dependent on the drug administered prior to Sacc/NaCl access. In subsequent probes, ethanol and cocaine (drugs from the same pharmacological class as pentobarbital and amphetamine, respectively) produced drug-appropriate responding specific to pentobarbital and amphetamine, respectively. Although several issues are addressed concerning the general utility of this procedure, the present study nevertheless extends the methodological modifications of the basic taste aversion baseline and may allow for other analyses and other questions that reveal more information regarding the stimulus properties of drugs.
Asymmetric Dynamic Price Competition with Price Inertia
Creators: name: Fishman, Arthur
name: Fishman, Arthur
Publisher: name: Unknown
Year: 1989
Subjects: Demand and Price Analysis
Financial Economics

description: This paper presents a model of dynamic price duopoly with short-term price inertia. A perturbation of consumer behavior, specifying that a consumer may purchase from the higher priced seller with positive probability, endows each duopolist with an arbitrarily small degree of monopoly power. It is shown that the slightest degree of asymmetry between the firms with respect to this monopoly power unambiguously identifies a firm which appropriates almost all the surplus from those consumers over whom the firms compete. This outcome is the unique Pareto dominant equilibrium if firms are restricted to state dependent strategies.
Design and Experiments with a Low-Cost Single-Motor Modular Aquatic Robot
Creators: name: Knizhnik, Gedaliah
name: Yim, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We present a novel design for a low-cost robotic boat powered by a single actuator, useful for both modular and swarming applications. The boat uses the conservation of angular momentum and passive flippers to convert the motion of a single motor into an adjustable paddling motion for propulsion and steering. We develop design criteria for modularity and swarming and present a prototype implementing these criteria. We identify significant mechanical sensitivities with the presented design, theorize about the cause of the sensitivities, and present an improved design for future work.
description: Accepted to the International Conference on Ubiquitous Robots (UR 2020). 8 pages
The Peverse Effects of Sale Taxes and Price Controls and an Equilibrium Search Model
Creators: name: Fershtman, Chaim
name: Fishman, Arthur
name: Fershtman, Chaim
name: Fishman, Arthur
Publisher: name: Unknown
Year: 1989
Subjects: Financial Economics
Research Methods/ Statistical Methods

description: If industrial policy is to be effective, it is essential that its effects on market performance be well understood. This paper examines the effects of sales taxes, price ceilings and minimum wages on the performance of markets in which agents must invest in costly search to become informed about prices or wages. In this context it is found that the market equilibrium may respond to changes in policy instruments in strikingly counterintuitive ways. In particular, the imposition of price ceilings and minimum wages may respectively result in substantial consumer price increases and wage decreases. Similarly, an increase in the sales tax may substantially reduce the consumer price.
Optical measurement of torque exerted on an elongated object by a non-circular laser beam
Creators: name: Parkin, Simon J.
name: Nieminen, Timo A.
name: Heckenberg, Norman R.
name: Rubinsztein-Dunlop, Halina
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We have developed a scheme to measure the optical torque, exerted by a laser beam on a phase object, by measuring the orbital angular momentum of the transmitted beam. The experiment is a macroscopic simulation of a situation in optical tweezers, as orbital angular momentum has been widely used to apply torque to microscopic objects. A hologram designed to generate LG02 modes and a CCD camera are used to detect the orbital component of the beam. Experimental results agree with theoretical numerical calculations, and the strength of the orbital component suggest its usefulness in optical tweezers for micromanipulation.
description: 6 pages, 7 figures, v2: minor typographical corrections
The relationship of community service learning to developing mature interpersonal relationships in a sample of university students
Creators: name: McGill, Joseph Christopher
Publisher: name: American University
Year: 2023

description: This study ascertained university student involvement in community service, as determined through the Community Service Involvement Inventory Format-II as a correlate to the developmental task, developing mature interpersonal relationships (MIR), as defined on and assessed by the Student Developmental Task and Lifestyle Inventory (SDTLI) (Winston, Miller, & Prince, 1987). Two hypotheses were developed to guide the study. One postulated that a significant relationship would be found between MIR and student involvement in community service, while another contended that such a relationship exists between MIR and students' perception of the extent to which community service contributed to their developing mature interpersonal relationships. Each hypothesis, tested in null form, was rejected (p $\leq$.05). Data used in hypotheses testing were elicited from 104 students with senior standing at the University of Redlands, California, in the fall of 1991 and spring of 1992. The Pearson product-moment correlation coefficient and analysis of variance (ANOVA) statistics were used, respectively, in testing the two hypotheses. Study findings led the writer to conclude that (a) community service learning positively affected the development of mature interpersonal relationships in the study sample of undergraduate university students, and (b) the total hours of involvement in community service learning, and the perception of the extent to which community service contributed to their developing mature interpersonal relationships, as defined by the MIR task on the SDTLI. Implications are that university faculty, administrators, and others working in the area of community service learning need to acknowledge the importance of community service learning to student development. They must design instructional programs and services with community service learning in mind to help students to capitalize on the psychosocial growth potential study findings suggest for community service as part of the undergraduate collegiate experience.
The relationship of community service learning to developing mature interpersonal relationships in a sample of university students
Creators: name: McGill, Joseph Christopher
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3903
subject: Education systems
classificationCode: 3904
subject: Specialist studies in education

description: This study ascertained university student involvement in community service, as determined through the Community Service Involvement Inventory Format-II as a correlate to the developmental task, developing mature interpersonal relationships (MIR), as defined on and assessed by the Student Developmental Task and Lifestyle Inventory (SDTLI) (Winston, Miller, & Prince, 1987). Two hypotheses were developed to guide the study. One postulated that a significant relationship would be found between MIR and student involvement in community service, while another contended that such a relationship exists between MIR and students' perception of the extent to which community service contributed to their developing mature interpersonal relationships. Each hypothesis, tested in null form, was rejected (p $\leq$.05). Data used in hypotheses testing were elicited from 104 students with senior standing at the University of Redlands, California, in the fall of 1991 and spring of 1992. The Pearson product-moment correlation coefficient and analysis of variance (ANOVA) statistics were used, respectively, in testing the two hypotheses. Study findings led the writer to conclude that (a) community service learning positively affected the development of mature interpersonal relationships in the study sample of undergraduate university students, and (b) the total hours of involvement in community service learning, and the perception of the extent to which community service contributed to their developing mature interpersonal relationships, as defined by the MIR task on the SDTLI. Implications are that university faculty, administrators, and others working in the area of community service learning need to acknowledge the importance of community service learning to student development. They must design instructional programs and services with community service learning in mind to help students to capitalize on the psychosocial growth potential study findings suggest for community service as part of the undergraduate collegiate experience.
Low-Energy Direct Capture in the 8Li(n,gamma)9Li and 8B(p,gamma)9C Reactions
Creators: name: Mohr, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The cross sections of the 8Li(n,gamma)9Li and 8B(p,gamma)9C capture reactions have been analyzed using the direct capture model. At low energies which is the astrophysically relevant region the capture process is dominated by E1 transitions from incoming s-waves to bound p-states. The cross sections of both mirror reactions can be described simultaneously with consistent potential parameters, whereas previous calculations have overestimated the capture cross sections significantly. However, the parameters of the potential have to be chosen very carefully because the calculated cross section of the 8Li(n,gamma)9Li reaction depends sensitively on the potential strength.
description: 6 pages, 5 figures, Phys. Rev. C, accepted
Can the faint sub-mm galaxies be explained in the Lambda-CDM model?
Creators: name: Baugh, C. M.
name: Lacey, C. G.
name: Frenk, C. S.
name: Granato, G. L.
name: Silva, L.
name: Bressan, A.
name: Benson, A. J.
name: Cole, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present predictions for the abundance of sub-mm galaxies (SMGs) and Lyman-break galaxies (LBGs) in the $Λ$CDM cosmology. A key feature of our model is the self-consistent calculation of the absorption and emission of radiation by dust. The new model successfully matches the LBG luminosity function, as well reproducing the properties of the local galaxy population in the optical and IR. The model can also explain the observed galaxy number counts at $850\mum$, but only if we assume a top-heavy IMF for the stars formed in bursts. The predicted redshift distribution of SMGs depends relatively little on their flux over the range 1-$10\mjy$, with a median value of $z\approx 2.0$ at a flux of $5\mjy$, in very good agreement with the recent measurement by Chapman et al The counts of SMGs are predicted to be dominated by ongoing starbursts. However, in the model these bursts are responsible for making only a few per cent of the stellar mass locked up in massive ellipticals at the present day.
description: Minor revisions to match version published in MNRAS. Colour versions of selected plots are available at http://star-www.dur.ac.uk/~cmb/SCUBAPLOTS/
Estimation of covariance matrices using influence of eigenvectors and eigenvalues
Creators: name: Vetter, John Edward
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: This paper presents a new approach to the estimation of a dispersion matrix from a set of observed data. The approach provides a robust and resistant estimation. Its uniqueness lies in the fact that it is the only technique based upon influence functions of both the eigenvalues and eigenvectors of the estimated matrix. The approach is an iterative one, where at each stage the influence functions of the current estimate are used as weights to adjust the influence that each point has in the estimation process. The motivation behind the use of influence functions is that they measure the amount of change in parameter estimates at a point x. It is important to note that outlying points x do not necessarily unduly influence parameter estimates, while conversely, non-outlying points with large influence may change parameter estimates by nature of their orientation. This paper reviews influence functions of matrices and their associated eigenvalues and eigenvectors. Distributional properties of the sample influence functions are investigated. Several graphical methods for the identification of influential points are presented and discussed. A new covariance estimation procedure called ESI for eigen-structure influence is introduced and its performance is investigated using simulation techniques. The results are compared with the results of several other methods available in the literature. A specific application to biplots and other lower rank applications is discussed.
Supersymmetric large-N reduced model with multiple matter
Creators: name: Kawai, Hikaru
name: Kuroki, Tsunehide
name: Morita, Takeshi
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We showed in hep-th/0303210 that the Dijkgraaf-Vafa theory can be regarded as large-N reduction in the case of $\mathcal{N}=1$ supersymmetric U(N) gauge theories, with single adjoint matter. We generalize this to gauge theories with gauge groups being the products of some unitary groups coupled to bifundamental or fundamental matter. We show that some large-N reduced models of these theories are supermatrix models, whose free energy is equivalent to the prepotentials of the original gauge theories. The supermatrix model in our approach should be taken in the Veneziano limit $N_c,N_f \to \infty $ with $N_f/N_c$ fixed.
description: 24 pages, LaTeX. to appear in Nucl. Phys. B
Estimation of covariance matrices using influence of eigenvectors and eigenvalues
Creators: name: Vetter, John Edward
Publisher: name: American University
Year: 2023

description: This paper presents a new approach to the estimation of a dispersion matrix from a set of observed data. The approach provides a robust and resistant estimation. Its uniqueness lies in the fact that it is the only technique based upon influence functions of both the eigenvalues and eigenvectors of the estimated matrix. The approach is an iterative one, where at each stage the influence functions of the current estimate are used as weights to adjust the influence that each point has in the estimation process. The motivation behind the use of influence functions is that they measure the amount of change in parameter estimates at a point x. It is important to note that outlying points x do not necessarily unduly influence parameter estimates, while conversely, non-outlying points with large influence may change parameter estimates by nature of their orientation. This paper reviews influence functions of matrices and their associated eigenvalues and eigenvectors. Distributional properties of the sample influence functions are investigated. Several graphical methods for the identification of influential points are presented and discussed. A new covariance estimation procedure called ESI for eigen-structure influence is introduced and its performance is investigated using simulation techniques. The results are compared with the results of several other methods available in the literature. A specific application to biplots and other lower rank applications is discussed.
Systematic search for gamma-ray periodicity in active galactic nuclei detected by the Fermi Large Area Telescope
Creators: name: Peñil, P.
name: Domínguez, A.
name: Buson, S.
name: Ajello, M.
name: Otero-Santos, J.
name: Barrio, J. A.
name: Nemmen, R.
name: Cutini, S.
name: Rani, B.
name: Franckowiak, A.
name: Cavazzuti, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We use nine years of gamma-ray data provided by the Fermi Large Area Telescope (LAT) to systematically study the light curves of more than two thousand active galactic nuclei (AGN) included in recent Fermi-LAT catalogs. Ten different techniques are used, which are organized in an automatic periodicity-search pipeline, in order to search for evidence of periodic emission in gamma rays. Understanding the processes behind this puzzling phenomenon will provide a better view about the astrophysical nature of these extragalactic sources. However, the observation of temporal patterns in gamma-ray light curves of AGN is still challenging. Despite the fact that there have been efforts on characterizing the temporal emission of some individual sources, a systematic search for periodicities by means of a full likelihood analysis applied to large samples of sources was missing. Our analysis finds 11 AGN, of which 9 are identified for the first time, showing periodicity at more than 4sigma in at least four algorithms. These findings will help in solving questions related to the astrophysical origin of this periodic behavior.
description: 16 pages, 5 figures, 4 tables. Accepted by ApJ
We interrupt our regularly scheduled program...: The President, the public, and the selling of foreign policy in the age of television
Creators: name: Rosenblatt, Alan Jay
Publisher: name: American University
Year: 2023

description: Television has transformed the President's "bully pulpit" into an instrument of mass persuasion. Televised addresses directly reach audiences of around 50 million people and millions more through word of mouth and media accounts. The President often uses these presentations to sell policy to the public. If successful, the convergence of public opinion and presidential initiative creates a powerful combination of stimuli on Congress. Public reaction to these speeches vary, some speeches are met with increased support for the policy discussed, others are not so fortunate. The differing levels of public reaction to these speeches, especially those on foreign policy, are the focus of this work. A time series analysis of the relationship between speeches and an aggregate measure of the public's assessment of the most important problem facing the country and a before/after survey design evaluating the effect of two of Ronald Reagan's speeches on public support for his policies in Lebanon, Grenada, and Nicaragua are used. The analysis suggests that the success of these speeches are due to a combination of factors including the amount of control the President has on the flow of information regarding the policy and the manner in which the outcome of the policy is framed. Within this context, these speeches are correlated with increased public attention to foreign policy and increased support for the President's decisions.
Competitiveness of the Polish dairy farms at the background of farms from selected European Union countries
Creators: name: Ziętara, Wojciech
name: Adamski, Marcin
name: Ziętara, Wojciech
name: Adamski, Marcin
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Farm Management
subject: dairy farms
subject: economic size of farms
subject: competitiveness

description: The paper presents the level of competitiveness of the Polish dairy farms at the background of farms from the selected European Union countries. The selection was not random. The research covered farms from the following countries: Poland, Hungary, Lithuania, Austria, Germany, Denmark, the Netherlands and France. Hungary, Lithuania and Austria were selected because of similar farm size and structure as well as similar production intensity level. Whereas Germany and France – as the largest milk producers, while Denmark and the Netherlands – as countries with the highest level of milk production intensity. Researched materials were sourced from data on farms covered by European FADN monitoring between 2013 and 2015. Competitiveness of farms was determined by the ratio of farm income to costs of use of own factors of production. Competitive ability was shown by Polish medium large and large farms with economic size of, respectively, EUR 50-100 thousand SO and EUR 100-500 thousand SO , using, accordingly, 39.1 and 81.3 ha of UAA and maintaining: 31 and 65 cows. Competitive ability was shown by Hungarian and Lithuanian farms from similar economic size classes and very large Hungarian and German farms.
Triply-charmed hexaquark states with the QCD sum rules
Creators: name: Wang, Zhi-Gang
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we construct the charmed-diquark-charmed-diquark-charmed-diquark type current to study the axialvector triply-charmed hexaquark state with the QCD sum rules in details. In calculations, we take the energy scale formula $μ=\sqrt{M^2_{H}-(3{\mathbb{M}}_c)^2}$ to choose the pertinent energy scale of the QCD spectral density so as to enhance the pole contribution and improve the convergent behavior of the operator product expansion. If the spin-breaking effects are small for the triply-charmed hexaquark states, the ground state hexaquark states with $J^P=0^+$, $1^+$ and $2^+$ are estimated to have the masses about $5.8\,\rm{GeV}$ and narrow widths.
description: 14 pages, 9 figures. arXiv admin note: text overlap with arXiv:2003.10631, arXiv:1912.07230
Additional file 1 of Cathepsin K regulates localization and secretion of Tartrate-Resistant Acid Phosphatase (TRAP) in TRAP-overexpressing MDA-MB-231 breast cancer cells
Creators: name: Reithmeier, Anja
name: Norgård, Maria
name: Ek-Rylander, Barbro
name: Näreoja, Tuomas
name: Andersson, Göran
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Supplementary material. Including co-staining of TRAP isoforms and proCtsK in MDA-MB-231 cells treated with MK-0822. Densitometric quantification of Western blot TRAP bands of the different FPLC fractioned cell lysates. Controls for nonspecific binding of secondary antibodies.
Non-linear spherical collapse in tachyon models, and a comparison of collapse in tachyon and quintessence models of dark energy
Creators: name: Rajvanshi, Manvendra Pratap
name: Bagla, J. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study evolution of perturbations in dark matter and dark energy for spherical collapse. We study Tachyon models of dark energy using the approach outlined in Rajvanshi and Bagla (2018). We work with models that are allowed by current observations. We find that as with Quintessence models allowed by observations, dark energy perturbations do not affect evolution of perturbations in dark matter in a significant manner. Perturbations in dark energy remain small for such models. In order to compare different classes of dark energy models, we use reconstruction of potentials and study dark matter and dark energy perturbations for same expansion history in the two models. We find that dark matter perturbations carry no imprint of the class of dark energy models for the same expansion history: this is significant in that we can work with any convenient model to study clustering of dark matter. We find that the evolution of dark energy perturbations carries an imprint of the class of models in that these grow differently in Tachyon models and Quintessence models. However, the difference between these diminishes for (1+w)<<1 and hence prospects for differentiating between models using characteristics of perturbations are limited in our Universe.
description: 18 Pages, final (accepted) version
Induced Spin-Currents in Alkali-Films
Creators: name: Bergmann, Gerd
name: Song, Funing
name: Garrett, Doug
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Astrophysics (astro-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In sandwiches of FeK and FeCs the conduction electrons in the alkali metals have a large mean free path. The experiments suggest that the specular reflection for spin up and down electrons is different at the interface yielding a spin current in the alkali film. The spin current is detected by the anomalous Hall effect of Pb surface impurities.
Additional file 1 of Pharmacokinetics, radiation dosimetry, acute toxicity and automated synthesis of [18F]AmBF3-TATE
Creators: name: Lau, Joseph
name: Jinhe Pan
name: Rousseau, Etienne
name: Uribe, Carlos F.
name: Sudhakara Reddy Seelam
name: Sutherland, Brent W.
name: Perrin, David M.
name: Kuo-Shyan Lin
name: Bénard, François
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Biodistribution of [18F]AmBF3-TATE in ICR female mice at selected time points (n = 8 per group). Values reported in %ID/g. Table S2. Biodistribution of [18F]AmBF3-TATE in ICR male mice at selected time points (n = 8 per group). Values reported in %ID/g. Table S3. OLINDA-calculated dosimetry [mSv/MBq] using the 25g MOBY mouse phantom from biodistribution data. Figure S1. Uptake of [18F]AmBF3-TATE in female mice as a function of time for the bladder, blood, kidneys, liver, and pancreas. Figure S2. Uptake of [18F]AmBF3-TATE in male mice as a function of time for the bladder, blood, kidneys, liver, and pancreas. Figure S3. Radio-chromatogram of [18F]AmBF3-TATE acquired by the integrated HPLC system on the Trasis AllInOne module. Figure S4. QC Radio-chromatogram of [18F]AmBF3-TATE acquired by the Agilent HPLC system. Figure S5. Radio-chromatogram of [18F]AmBF3-TATE acquired by the Agilent HPLC system 6 h after EOS.
Y(Ni, Mn)O3 epitaxial thin films prepared by pulsed laser deposition
Creators: name: Ma, Yanwei
name: Guilloux-Viry, M.
name: Pena, O.
name: Moure, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: High–quality epitaxial YNixMn1-xO3 thin films have been successfully grown on SrTiO3 (100) (STO) by pulsed laser deposition. X-ray diffraction studies showed that the films deposited on STO are fully c-axis oriented and exhibit in-plane alignment. The magnetic transition temperatures (Tc) of the films (both x=0.33 and 0.5) are equivalent to the values of the corresponding bulk samples. However, when x=0.5, the films show magnetic properties quite different from those of bulk samples. This difference may be caused by the structure distortion in these films.
description: 14 pages, 4 figures. to be published
We interrupt our regularly scheduled program...: The President, the public, and the selling of foreign policy in the age of television
Creators: name: Rosenblatt, Alan Jay
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: Television has transformed the President's "bully pulpit" into an instrument of mass persuasion. Televised addresses directly reach audiences of around 50 million people and millions more through word of mouth and media accounts. The President often uses these presentations to sell policy to the public. If successful, the convergence of public opinion and presidential initiative creates a powerful combination of stimuli on Congress. Public reaction to these speeches vary, some speeches are met with increased support for the policy discussed, others are not so fortunate. The differing levels of public reaction to these speeches, especially those on foreign policy, are the focus of this work. A time series analysis of the relationship between speeches and an aggregate measure of the public's assessment of the most important problem facing the country and a before/after survey design evaluating the effect of two of Ronald Reagan's speeches on public support for his policies in Lebanon, Grenada, and Nicaragua are used. The analysis suggests that the success of these speeches are due to a combination of factors including the amount of control the President has on the flow of information regarding the policy and the manner in which the outcome of the policy is framed. Within this context, these speeches are correlated with increased public attention to foreign policy and increased support for the President's decisions.
Data Warehouse and Decision Support on Integrated Crop Big Data
Creators: name: Ngo, V. M.
name: Le-Khac, N. A.
name: Kechadi, M. T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Databases (cs.DB)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: In recent years, precision agriculture is becoming very popular. The introduction of modern information and communication technologies for collecting and processing Agricultural data revolutionise the agriculture practises. This has started a while ago (early 20th century) and it is driven by the low cost of collecting data about everything; from information on fields such as seed, soil, fertiliser, pest, to weather data, drones and satellites images. Specially, the agricultural data mining today is considered as Big Data application in terms of volume, variety, velocity and veracity. Hence it leads to challenges in processing vast amounts of complex and diverse information to extract useful knowledge for the farmer, agronomist, and other businesses. It is a key foundation to establishing a crop intelligence platform, which will enable efficient resource management and high quality agronomy decision making and recommendations. In this paper, we designed and implemented a continental level agricultural data warehouse (ADW). ADW is characterised by its (1) flexible schema; (2) data integration from real agricultural multi datasets; (3) data science and business intelligent support; (4) high performance; (5) high storage; (6) security; (7) governance and monitoring; (8) consistency, availability and partition tolerant; (9) cloud compatibility. We also evaluate the performance of ADW and present some complex queries to extract and return necessary knowledge about crop management.
description: 13 pages, 11 figures. arXiv admin note: text overlap with arXiv:1905.12411
An assessment of the effectiveness of an experimental approach for teaching applied English grammar to adults in a public setting
Creators: name: Patterson Bryant, Barbara (Jean)
Publisher: name: American University
Year: 2023

description: This study assessed the effectiveness of the experimental approach "Unified, Conceptual, Integrated Model (U.C.I.M.) for English Grammar" for increasing the skills of a sample of adult learners in elements of standard written English as defined and measured through the "Usage" (assessing use of pronouns and modifiers) and "Sentence Structure" (assessing complete sentence use, appropriate use of subordination and coordination, appropriate modifier placement) subtests of the Descriptive Tests of Language Skills (DTLS). Two hypotheses guided the development of the study: (a) the mean DTLS "Usage" subtest scores and (b) the mean DTLS "Sentence Structure" subtest scores for the study sample taught by the experimental approach would be significantly higher than those of a comparison group taught by a traditional approach. The study followed a quasi-experimental pretest-posttest design, involving experimental (N = 202) and comparison (N = 238) groups. The homogeneity of the groups was established through a chi-square test of difference on selected demographic characteristics. The subjects participated in seven weeks of instruction (ten hours) in standard applied, English grammar. The Traditional group was treated with a "traditional" model constructed by the writer, based on analyses of 32 texts and other materials, which revealed the model as generally authoritative, rule-based, and characterized by fragmentation and variability in content, presentation, and learning sequence. The Experimental group was treated with the concept-based "Unified, Conceptual, Integrated Model for English Grammar" approach devised by the author. Hypothesis testing utilizing pre- and posttest data entailed the t-test statistic. Significance was set at p $<$.05. The results of hypothesis testing led to the rejection of both hypotheses. The Experimental group did not show a significant gain. The data did show greater gains for the experimental group in the parts of the tests that assess communicative areas. The findings warrant the conclusions that the U.C.I.M., as conducted under the conditions of this study, is not significantly more effective than the traditional model, that no definitive changes in approach should be made as a result of this study, but that, from the findings of the subtest cluster scores, selected aspects of the U.C.I.M. concerned with linguistic connectivity may have significance for teaching models.
Direct payments versus subsidized crop insurance in agriculture
Creators: name: Biernat-Jarka, Agnieszka
name: Pawlowska-Tyszko, Joanna
name: Biernat-Jarka, Agnieszka
name: Pawlowska-Tyszko, Joanna
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural Finance
subject: Crop Production/Industries
subject: Farm Management
subject: agriculture
subject: risk
subject: insurance
subject: farmers
subject: direct payment
subject: European Union
subject: Poland

description: The article presents types of subsidized crop insurance in agriculture. The purpose of the study was to discuss changes in the area of insured crops in 2009-2015 and to show the link between the introduction of the crop insurance law and the actual level of insurance contracts concluded by farmers. The study attempted to answer the question whether, the principle of compulsory insurance connected with the receipt of direct payments increased the interest of farmers in state-subsidized insurance. The article used data from Statistical Yearbooks of Central Statistical Office, reports of insurance companies submitted to the Ministry of Agriculture and Rural Development and FADN (Farm Accountancy Data Network). The analysis covered detailed FADN agricultural accounting data for 2009-2015.