cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Time evolution of nonadditive entropies: The logistic map
Creators: name: Tsallis, Constantino
name: Borges, Ernesto P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Due to the second principle of thermodynamics, the time dependence of entropy for all kinds of systems under all kinds of physical circumstances always thrives interest. The logistic map $x_{t+1}=1-a x_t^2 \in [-1,1]\;(a\in [0,2])$ is neither large, since it has only one degree of freedom, nor closed, since it is dissipative. It exhibits, nevertheless, a peculiar time evolution of its natural entropy, which is the additive Boltzmann-Gibbs-Shannon one, $S_{BG}=-\sum_{i=1}^W p_i \ln p_i$, for all values of $a$ for which the Lyapunov exponent is positive, and the nonadditive one $S_q= \frac{1-\sum_{i=1}^W p_i^q}{q-1}$ with $q=0.2445\dots$ at the edge of chaos, where the Lyapunov exponent vanishes, $W$ being the number of windows of the phase space partition. We numerically show that, for increasing time, the phase-space-averaged entropy overshoots above its stationary-state value in all cases. However, when $W\to\infty$, the overshooting gradually disappears for the most chaotic case ($a=2$), whereas, in remarkable contrast, it appears to monotonically diverge at the Feigenbaum point ($a=1.4011\dots$). Consequently, the stationary-state entropy value is achieved from {\it above}, instead of from {\it below}, as it could have been a priori expected. These results raise the question whether the usual requirements -- large, closed, and for generic initial conditions -- for the second principle validity might be necessary but not sufficient.
description: 9 pages, 9 composed figures (total of 19 simple figures)
Viscous fluid cosmology in symmetric teleparallel gravity
Creators: name: Solanki, Raja
name: Rana, Dheeraj Singh
name: Mandal, Sanjay
name: Sahoo, P. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this manuscript, we analyze the viscous fluid cosmological model in the framework of recently proposed $f(Q)$ gravity by assuming three different forms of bulk viscosity coefficients, specifically, $(i)ζ=ζ_{0}+ζ_{1}\left( \frac{\dot{a}}{a}\right) +ζ_{2}\left( \frac{\ddot{a}}{\dot{a}}\right) $, $(ii)ζ=ζ_{0}+ζ_{1}\left( \frac{\dot{a}}{a}\right)$, and $(iii)ζ=ζ_{0}$ and a linear $f(Q)$ model, particularly, $f(Q)=αQ$ where $α\neq 0$ is free model parameter. We estimate the bulk viscosity coefficients and the model parameter values using the combined H(z)+Pantheon+BAO data set. We study the asymptotic behavior of our cosmological bulk viscous model by utilizing the phase space method. We find that corresponding to all three cases, our model depicts the evolution of the universe from matter dominated decelerated epoch (a past attractor) to a stable de-sitter accelerated epoch (a future attractor). Further, we study the physical behavior of effective pressure, effective equation of state (EoS), and the statefinder parameters. We find that the pressure component in the presence of bulk viscosity shows negative behavior and the effective EoS parameter predicts the accelerated expansion phase of the universe for all three cases. Moreover, we obtain that the trajectories of our model lie in the quintessence region and it converges to the $Λ$CDM fixed point in the far future. We find that the accelerated deSitter like phase comes purely from the $\barζ_0$ case without any geometrical modification to GR. Moreover, we find that the late-time behavior of all three cases of viscosity coefficients are identical.
description: Fortschritte der Physik - Progress of Physics published version
Random graphs containing arbitrary distributions of subgraphs
Creators: name: Karrer, Brian
name: Newman, M. E. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Discrete Mathematics (cs.DM)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Traditional random graph models of networks generate networks that are locally tree-like, meaning that all local neighborhoods take the form of trees. In this respect such models are highly unrealistic, most real networks having strongly non-tree-like neighborhoods that contain short loops, cliques, or other biconnected subgraphs. In this paper we propose and analyze a new class of random graph models that incorporates general subgraphs, allowing for non-tree-like neighborhoods while still remaining solvable for many fundamental network properties. Among other things we give solutions for the size of the giant component, the position of the phase transition at which the giant component appears, and percolation properties for both site and bond percolation on networks generated by the model.
description: 12 pages, 6 figures, 1 table
The effective fine structure constant of freestanding graphene measured in graphite
Creators: name: Reed, James P.
name: Uchoa, Bruno
name: Joe, Young Il
name: Gan, Yu
name: Casa, Diego
name: Fradkin, Eduardo
name: Abbamonte, Peter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electrons in graphene behave like Dirac fermions, permitting phenomena from high energy physics to be studied in a solid state setting. A key question is whether or not these Fermions are critically influenced by Coulomb correlations. We performed inelastic x-ray scattering experiments on crystals of graphite, and applied reconstruction algorithms to image the dynamical screening of charge in a freestanding, graphene sheet. We found that the polarizability of the Dirac fermions is amplified by excitonic effects, improving screening of interactions between quasiparticles. The strength of interactions is characterized by a scale-dependent, effective fine structure constant, α*(k,ω), whose value approaches α* ~ 1/7 at low energy and large distances. This value is substantially smaller than the nominal α= 2.2, suggesting that, on the whole, graphene is more weakly interacting than previously believed.
description: 28 pages, 10 figures, 2 animations
Limetstone and Dolomite Resources of Kentucky
Creators: name: Dever, Garland R.
name: Weisenfluh, Gerald A.
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 2013

description: Abstract:
Large quantities of limestone and dolomite suitable for construction, agriculture, and industrial uses are available in Kentucky. Deposits of hard and durable stone are quarried and mined for construction. The stone is crushed to produce aggregate for concrete and asphalt used in the construction of highways, streets, and buildings. Much of the state’s stone being produced for construction also meets the chemical and physical specifications for aglime, which is used to adjust the pH of soils for agricultural crops and pastures. Deposits of chemically pure stone are used for the manufacture of lime and cement, and for industrial applications such as a sorbent for reducing sulfur oxide emissions from coal-burning power plants, rock dust for explosion abatement in underground coal mines, and as fillers. Dimension stone has been quarried from several of the limestone and dolomite units.
In 2008, the latest year for which industry statistics are available from the U.S. Geological Survey, production by the stone industry of Kentucky ranked 12th in the nation (U.S. Geological Survey, 2008). Ninety-five operations produced 51 million metric tons of stone valued at $411 million. At least 60 percent of the production was construction aggregate. Kentucky led the nation in the production of stone from underground mines in 2008 and it ranked third in lime production. A western Kentucky quarry was the largest producing operation in the United States for several years.
Острова “русов” и остров св.Эферия
Creators: name: Орлов, Руслан
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 430101
subject: Archaeological science

description: Орлов Р.С. Острова “русов” и остров св.Эферия — Мир Ольвии. - Киев, 1996, - С,161-165.
The Detectability of Transit Depth Variations due to Exoplanetary Oblateness and Spin Precession
Creators: name: Carter, Joshua A.
name: Winn, Joshua N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Knowledge of an exoplanet's oblateness and obliquity would give clues about its formation and internal structure. In principle, a light curve of a transiting planet bears information about the planet's shape, but previous work has shown that the oblateness-induced signal will be extremely difficult to detect. Here we investigate the potentially larger signals due to planetary spin precession. The most readily detectable effects are transit depth variations (T$δ$V) in a sequence of light curves. For a planet as oblate as Jupiter or Saturn, the transit depth will undergo fractional variations of order 1%. The most promising systems are those with orbital periods of approximately 15--30 days, which is short enough for the precession period to be less than about 40 years, and long enough to avoid spin-down due to tidal friction. The detectability of the T$δ$V signal would be enhanced by moons (which would decrease the precession period) or planetary rings (which would increase the amplitude). The Kepler mission should find several planets for which precession-induced T$δ$V signals will be detectable. Due to modeling degeneracies, Kepler photometry would yield only a lower bound on oblateness. The degeneracy could be lifted by observing the oblateness-induced asymmetry in at least one transit light curve, or by making assumptions about the planetary interior.
description: Accepted for publication in The Astrophysical Journal
Dynamical Friction due to fuzzy dark matter on satellites described by axisymmetric logarithmic potentials
Creators: name: Vitsos, Andreas
name: Gourgouliatos, Konstantinos N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A plausible dark matter candidate is an ultralight bosonic particle referred to as fuzzy dark matter. The equivalent mass-energy of the fuzzy dark matter boson is $\sim 10^{-22}$eV and has a corresponding de Broglie wavelength of kiloparsec scale, thus exhibiting wave behaviour in scales comparable to a galactic core, which could not appear in conventional cold dark matter models. The presence of fuzzy dark matter in galactic clusters will impact the motion of their members through dynamical friction. In this work, we present simulations of the dynamical friction on satellites traversing an initially uniform fuzzy dark matter halo. We focus on the satellites whose shapes are beyond spherical symmetry described by ellipsoidal and logarithmic potentials. We find that the wakes created on the fuzzy dark matter halo due to the passage of such satellites are qualitatively different from those generated by spherically symmetric ones. Furthermore, we quantify the dynamical friction coefficient for such systems, finding that the same satellite may experience a drag differing by a factor of $5$ depending on its ellipticity and the direction of motion. Finally, we find that the dynamical friction time-scale is close to Hubble time, assuming a satellite of $10^{11}$M$_{\odot}$ traversing at $10^{3}$km/s a FDM halo whose mean density is $\sim 10^6$M$_{\odot}$kpc$^{-3}$.
description: 17 pages, 7 figures, Accepted by JCAP
Storage of electrons in shallow donor excited states of GaP:Te
Creators: name: Ganichev, Sergey
name: Yassievich, Irina
name: Raab, W.
name: Zepezauer, E.
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1997
Subjects: subject: 530 Physik
subject: 71.55.Eq
subject: 72.15.Lh
subject: 72.20.Jv
subject: 73.40.Gk

description: Tellurium donors in GaP have been ionized by phonon-assisted tunneling in the electric field of pulsed far-infrared laser radiation. In response to the laser pulse a photoconductive signal has been detected with a fast component that follows in time the laser pulse and a slow component that rises after the irradiation has ceased and finally exponentially decays with a strongly temperature-dependent time constant varying from several microseconds to milliseconds. It is shown that this temporal structure of the signal is due to a storage of carriers in the valley-orbit split 1s(E) shallow donor state. Observation of far-infrared to mid-infrared up-conversion demonstrates that the final step of cascade recombination is achieved by radiative transitions.
Benefits of Crop Diversification to Sustain Yields, Soil Quality and Biodiversity
Creators: name: Zornoza, Raúl
name: Sánchez-Navarro, Virginia
name: Onurca Özbolat
name: Cuartero, Jessica
name: Ros, Margarita
name: Pascual, Jose Antonio
name: Dittrich, Felix
name: Thiele-Bruhn, Sören
name: Canfora, Loredana
name: Orrù, Luigi
name: Francaviglia, Rosa
Publisher: name: Zenodo
Year: 2020
Subjects: crop diversification
cropping systems
ecosystem services
soil quality
crop yield
rotations
multiple cropping
intercropping
biodiversity

description: The use of crop rotations, multiple cropping or intercropping associated with sustainable agricultural practices (conservation agriculture, nutrient management, integrated pest management, etc.) can achieve higher land productivity than mono-cropping. This is due to the effect of crop diversification in increasing the resilience of the agroecosystem to perturbations (drought, flooding, diseases, pests, nutrient availability, pollution) by complementary use of resources and transfer of nutrients by plant roots. With diversified cropping systems, dependence on a single crop is avoided, so that variability in prices, market, climate, and pests/diseases will not have such drastic effects on local economy. However, to ensure increases in land productivity, the establishment of suitable crop associations, cultivars, densities and patterns is essential. Crop diversification can enhance the delivery of ecosystem services such as increases in above and belowground biodiversity, decreases in soil erosion and greenhouse gas emissions, decreases in soil/water pollution and increases in carbon sequestration. It can also reduce the consumption of fertilisers, pesticides, water and energy, improving the long-term sustainability of agro-ecosystems. Crop rotation, multiple cropping and intercrops can promote water retention (by improved soil structure and higher soil cover) and mitigate pest/disease pressures (by competence, repellence, allelopathy, and development of natural enemies). Crop diversification can reduce the use of fertilisers with use of associations with different requirements for soil nutrients in time and space. For example, legumes, as crops that fix atmospheric nitrogen can increase the production of the other crops through increments in soil fertility by higher microbial activity and release of available nitrogen. The inclusion of several crop species can increase biodiversity, since they provide refuge for more species. Selecting opportunities for pest control in combination with crop diversification that are specific to the particular area (e.g. selective non-persistent pesticides, barriers, minimisation of irrigation, mulching, suitable timing of crops) will limit the input of persistent pesticides to the soil and water, with optimised pest and disease control.
Gauge equivalence and inverse scattering for long-range magnetic potentials
Creators: name: Eskin, Gregory
name: Isozaki, Hiroshi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81U40, 35Q40, 35R30

description: For Schroedinger operators with long-range magnetic vector potentials and short-range electric scalar potentials in an exterior domain $Ω$ in ${\bf R}^n$ with $n \geq 2$, we show that there is a one-to-one correspondence between the gauge equivalent classes of Hamiltonians and those of S-matrices if $Ω$ is exterior to a bounded convex obstacle.
Tunnel ionization of deep impurities by far-infrared radiation
Creators: name: Ganichev, Sergey
name: Yassievich, Irina
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1996
Subjects: subject: 530 Physik

description: Tunnel ionization of semiconductor deep impurity centres has been investigated in a field of far-infrared radiation where photon energies are several factors of ten smaller than the binding energy of the impurities. Depending on the radiation electric field strength, ionization is caused by phonon-assisted tunnel ionization or direct electron tunnelling. Applying high-power pulsed lasers, two types of impurities have been studied: substitutional on-site acceptors in Ge and autolocalized DX− centres in AlxGa1−x Sb. The experimental results are analysed in terms of the theory of multiphonon and cold carrier emission of deep impurities in the adiabatic approximation. Tunnelling times have been measured for both types of impurities. Due to different tunnelling trajectories of on-site and autolocalized centres, the tunnelling time is in the first case larger and in the other case smaller than the reciprocal temperature multiplied by universal constants. This allows us to distinguish in a direct way between the two types of configuration potentials of impurities. The results demonstrate that high-frequency far-infrared laser pulses may be used to study the elementary process of tunnelling in extremely large electric field strengths, avoiding contact phenomena and avalanche breakdown.
Effect of time delay on the onset of synchronization of the stochastic Kuramoto model
Creators: name: Sen, Monoj Kumar
name: Bag, Bidhan Chandra
name: Petrosyan, Karen G.
name: Hu, Chin-Kun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider the Kuramoto model of globally coupled phase oscillators with time-delayed interactions, that is subject to the Ornstein-Uhlenbeck (Gaussian) colored or the non-Gaussian colored noise. We investigate numerically the interplay between the influences of the finite correlation time of noise $τ$ and the time delay $τ_{d}$ on the onset of the synchronization process. Both cases for identical and nonidentical oscillators had been considered. Among the obtained results for identical oscillators is a large increase of the synchronization threshold as a function of time delay for the colored non-Gaussian noise compared to the case of the colored Gaussian noise at low noise correlation time $τ$. However, the difference reduces remarkably for large noise correlation times. For the case of nonidentical oscillators, the incoherent state may become unstable around the maximum value of the threshold (as a function of time delay) even at lower coupling strength values in the presence of colored noise as compared to the noiseless case. We had studied the dependence of the critical value of the coupling strength (the threshold of synchronization) on given parameters of the stochastic Kuramoto model in great details and presented results for possible cases of colored Gaussian and non-Gaussian noises.
description: 19 pages with 7 figures
Response of tunnel Schottky-barrier junction to radiation pressure of FIR laser radiation
Creators: name: Ganichev, Sergey
name: Shul'man, A.
name: Kotel'nikov, I.
name: Mordovets, N.
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1996
Subjects: subject: far infrared response; tunnel Schottky-barrier; near-zone field effect
subject: 530 Physik

description: The response of tunnel Schottky junctions due to plasma reflection of laser radiation has been investigated in the far infrared. The signal was found to be independent of the laser radiation frequency below the plasma edge. At high power levels a nonlinearity of the response was observed. It is assumed that this nonlinearity is caused by near-zone field effects which lead also to a substantial enhancement of the responsivity.
Asociación de cultivos hortícolas para mejorar la sostenibilidad de los sistemas agrarios
Creators: name: Sánchez-Navarro, Virginia
name: Contreras, Josefina
name: Marcos, Mariano
name: Özbolat, Onurcan
name: Zornoza, Raul
Publisher: name: Zenodo
Year: 2021
Subjects: cultivos asociados
leguminosas
horticultura
vegetales
fauna auxiliar
polinizadores

description: Presentación sobre el efecto de cultivos asociados en horticultura en la jornada "Be a Diverfarmer" organizada en el marco del proyecto Diverfarming en la Región de Murcia.
A mathematical model for phase separation: A generalized Cahn-Hilliard equation
Creators: name: Berti, Alessia
name: Bochicchio, Ivana
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we present a mathematical model to describe the phenomenon of phase separation, which is modelled as space regions where an order parameter changes smoothly. The model proposed, including thermal and mixing effects, is deduced for an incompressible fluid, so the resulting differential system couples a generalized Cahn-Hilliard equation with the Navier-Stokes equation. Its consistency with the second law of thermodynamics in the classical Clausius-Duhem form is finally proved.
description: 9 pages, 1 figure, Published online in Wiley Online Library
A comparison of response-contingent stimulus pairing and operant discrimination training to establish vocal stimuli as reinforcers
Creators: name: Pastrana, Sarah Justine
Publisher: name: University of British Columbia
Year: 2018

description: Conditioned reinforcers are used frequently in behavioural interventions for individuals with developmental disabilities. It is common to use several reinforcers in behavioural interventions to account for changes in preference over time and to reduce the likelihood of satiation (Moher, Gould, Hegg, & Mahoney, 2008). Conditioning procedures are effective for increasing the number of stimuli that function as reinforcers. Conditioning procedures might be particularly important for individuals with limited social reinforcers given social stimuli, such as praise, are delivered frequently as a consequence for appropriate responding. Although a number of studies have evaluated the effects of different conditioning procedures, there are no comprehensive guidelines or recommendations for establishing conditioned reinforcers. Additional research is needed to identify the most effective method(s) of establishing conditioned reinforcers. The purpose of the current study was three-fold: 1) to investigate whether there is a functional relationship between response-contingent stimulus pairing and increasing the reinforcing value of vocal stimuli, 2) to investigate whether there is a functional relationship between operant discrimination training and increasing the reinforcing value of vocal stimuli, and 3) to compare the relative effectiveness of response-contingent stimulus pairing and operant discrimination training to condition vocal stimuli as reinforcers for individuals with Autism Spectrum Disorder. Five individuals between the ages of 6- to 12-years old participated in the study. All participants were diagnosed with Autism Spectrum Disorder. An adapted alternating treatments design was used to evaluate the effects of response-contingent stimulus pairing and operant discrimination training on neutral vocal stimuli. Overall, the results showed that response frequency and session duration during reinforcer probes for response-contingent stimulus pairing and the SD were higher following exposure to the conditioning procedures for three of five participants. These results indicate that both response-contingent stimulus pairing and operant discrimination training were effective in establishing vocal stimuli as conditioned reinforcers for some of the participants.
The impact of adjuvant oxaliplatin and tumor sidedness on the overall survival of stage IIB colon cancer patients: a multicentre study
Creators: name: Atci, Muhammed Mustafa
name: Akagunduz, Baran
name: Demir, Metin
name: Arikan, Rukiye
name: Ay, Seval
name: Ozer, Muhammet
name: Ayhan, Murat
name: Cil, Ibrahim
name: Demir, Nazan
name: Ozyurt, Neslihan
name: Karakaya, Gökhan
name: Cevik, Gokcen Tugba
name: Onder, Arif Hakan
name: Selvi, Oguzhan
name: Sakin, Abdullah
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Space Science
Biotechnology
Biological Sciences not elsewhere classified
Cancer

description: The aim of this multicentre retrospective study was to compare the efficacy of adjuvant chemotherapy regimens both with and without oxaliplatin and tumor sidedness in stage IIB (pT4aN0) colon cancer patients. This study included patients with stage IIB colon cancer who underwent curative surgery and received adjuvant chemotherapy. The patients were divided into two groups (one with and one without oxaliplatin) to compare the overall survival (OS) in right- and left-sided tumors. The study population included 298 patients with stage IIB colon cancer (median age: 57) of whom 69.1% were male. Forty-four per cent of these patients (n = 131) were diagnosed with right-sided colon cancer. The median follow-up duration was 35.9 months. In the entire population, a median OS was not reached, and the five-year OS was 83%. The median disease-free survival (DFS) was 12 months. There was no significant difference in terms of the five-year OS between right- (82%) and left-sided (84%) colon tumors (p = 0.67). In addition, the five-year OS of patients treated with and without oxaliplatin were 76% and 89%, respectively, and there was no statistically significant difference (p = 0.23). The five-year OS of the patients treated with and without oxaliplatin were 83% and 96.5%, respectively, (p = 0.8) in right-sided colon tumors, while it was 75% and 93% (p = 0.06), respectively, in left-sided colon tumors. Tumor sidedness and the addition of oxaliplatin to adjuvant chemotherapy were not found to be associated with the OS in stage IIB colon cancer patients in our study. Further large prospective studies that also include MSI, RAS and BRAF status data are warranted in colon cancer patients.
Adaptive Exploration and Optimization of Materials Crystal Structures
Creators: name: Krishna, Arvind
name: Tran, Huan
name: Huang, Chaofan
name: Ramprasad, Rampi
name: Joseph, V. Roshan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: A central problem of materials science is to determine whether a hypothetical material is stable without being synthesized, which is mathematically equivalent to a global optimization problem on a highly non-linear and multi-modal potential energy surface (PES). This optimization problem poses multiple outstanding challenges, including the exceedingly high dimensionality of the PES and that PES must be constructed from a reliable, sophisticated, parameters-free, and thus, very expensive computational method, for which density functional theory (DFT) is an example. DFT is a quantum mechanics based method that can predict, among other things, the total potential energy of a given configuration of atoms. DFT, while accurate, is computationally expensive. In this work, we propose a novel expansion-exploration-exploitation framework to find the global minimum of the PES. Starting from a few atomic configurations, this ``known'' space is expanded to construct a big candidate set. The expansion begins in a non-adaptive manner, where new configurations are added without considering their potential energy. A novel feature of this step is that it tends to generate a space-filling design without the knowledge of the boundaries of the domain space. If needed, the non-adaptive expansion of the space of configurations is followed by adaptive expansion, where ``promising regions'' of the domain space (those with low energy configurations) are further expanded. Once a candidate set of configurations is obtained, it is simultaneously explored and exploited using Bayesian optimization to find the global minimum. The methodology is demonstrated using a problem of finding the most stable crystal structure of Aluminum.
BR (bendamustine plus rituximab) versus R-CHOP for patients with indolent B-cell lymphomas: a systematic review and Meta-analysis
Creators: name: Ou, Wenxin
name: Jiang, Tiantian
name: Tang, Xiaoqiong
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Hematology

description: Bendamustine plus rituximab (BR) and rituximab, cyclophosphamide, doxorubicin, vincristine and prednisolone (R-CHOP) have been shown to be effective in the treatment of indolent B-cell lymphomas (iBCL). The survival outcomes and adverse events of BR and R-CHOP are still controversial, thus we did a systematic review and meta-analysis to assess them. We searched articles in Pubmed, Cochrane, Embase and Web of Science comparing BR to R-CHOP in patients with iBCL. A total of 3141 patients were included. The results of our meta-analysis revealed that BR has the potential of improving PFS (HR = 0.67, p = 0.03). No apparent benefit of BR was noted in patients with iBCL for OS (HR = 1.18, p = 0.04). Compared with R-CHOP, we found that BR regimen had the potential of prolonging PFS, minor toxicity, a better quality of life, and better cost-effectiveness. These results supported BR as a preferred first-line treatment option for patients (especially for elders) with iBCL.
Unidirectional Imaging using Deep Learning-Designed Materials
Creators: name: Li, Jingxi
name: Gan, Tianyi
name: Zhao, Yifan
name: Bai, Bijie
name: Shen, Che-Yung
name: Sun, Songyu
name: Jarrahi, Mona
name: Ozcan, Aydogan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A unidirectional imager would only permit image formation along one direction, from an input field-of-view (FOV) A to an output FOV B, and in the reverse path, the image formation would be blocked. Here, we report the first demonstration of unidirectional imagers, presenting polarization-insensitive and broadband unidirectional imaging based on successive diffractive layers that are linear and isotropic. These diffractive layers are optimized using deep learning and consist of hundreds of thousands of diffractive phase features, which collectively modulate the incoming fields and project an intensity image of the input onto an output FOV, while blocking the image formation in the reverse direction. After their deep learning-based training, the resulting diffractive layers are fabricated to form a unidirectional imager. As a reciprocal device, the diffractive unidirectional imager has asymmetric mode processing capabilities in the forward and backward directions, where the optical modes from B to A are selectively guided/scattered to miss the output FOV, whereas for the forward direction such modal losses are minimized, yielding an ideal imaging system between the input and output FOVs. Although trained using monochromatic illumination, the diffractive unidirectional imager maintains its functionality over a large spectral band and works under broadband illumination. We experimentally validated this unidirectional imager using terahertz radiation, very well matching our numerical results. Using the same deep learning-based design strategy, we also created a wavelength-selective unidirectional imager, where two unidirectional imaging operations, in reverse directions, are multiplexed through different illumination wavelengths. Diffractive unidirectional imaging using structured materials will have numerous applications in e.g., security, defense, telecommunications and privacy protection.
description: 27 Pages, 10 Figures
Class I Waste-Disposal Wells and Class II Brine-Injection Wells in Kentucky
Creators: name: Sparks, Thomas N.
name: Harris, David C.
name: Bowersox, J. Richard
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 2013

description: Abstract:
This map shows locations of disposal wells permitted and regulated by the U.S. Environmental Protection Agency under parts of their Underground Injection Control program. Only UIC Class I and Class II disposal wells are illustrated and described. EPA defines Class I as industrial and municipal waste-disposal wells and Class II as oil- and gas-related injection wells (EPA, 2012a). Disposal wells are designed to protect underground sources of drinking water. The primary function of this map is to provide general information about type, name, location, geology, and depth of injection zone for these disposal wells on a statewide basis.
Copyright: © 2013, University of Kentucky, Kentucky Geological Survey
Locomotive and reptation motion induced by internal force and friction
Creators: name: Sakaguchi, Hidetsugu
name: Ishihara, Taisuke
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We propose a simple mechanical model of locomotion induced by internal force and friction. We first construct a system of two elements as an analog of the bipedal motion. The internal force does not induce a directional motion by itself because of the action-reaction law, but a directional motion becomes possible by the control of the frictional force. The efficiency of these model systems is studied using an analogy to the heat engine. As a modified version of the two-elements model, we construct a model which exhibits a bipedal motion similar to kinesin's motion of molecular motor. Next, we propose a linear chain model and a ladder model as an extension of the original two-element model,. We find a transition from a straight to a snake-like motion in a ladder model by changing the strength of the internal force.
description: 10 pages, 7 figure
Deformable Molecular Crystal on 2D Crystal: A New Way to Build Nanoscale Periodic Trapping Sites for Interlayer Excitons
Creators: name: Rijal, Kushal
name: Amos, Stephanie
name: Valencia-Acuna, Pavel
name: Rudayni, Fatimah
name: Fuller, Neno
name: Zhao, Hui
name: Peelaers, Hartwin
name: Chan, Wai-Lun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The nanoscale moiré pattern formed at 2D transition metal dichalcogenide crystal (TMDC) heterostructures provides periodic trapping sites for excitons, which is essential for realizing various exotic phases such as artificial exciton lattices, Bose-Einstein condensates, and exciton insulators. At organic molecule/TMDC heterostructures, similar periodic potentials can be formed via other degrees of freedom. We utilize the structure deformability of a 2D molecular crystal as a degree of freedom to create a periodic nanoscale potential that can trap interlayer excitons (IXs). Specifically, two semiconducting molecules, PTCDI and PTCDA, which possess similar bandgaps and ionization potentials but form different lattice structures on MoS2, are investigated.The PTCDI lattice on MoS2 is distorted geometrically, which lifts the degeneracy of the two molecules within the crystal's unit cell. The degeneracy lifting results in a spatial variation of the molecular orbital energy, with an amplitude and periodicity of ~ 0.2 eV and ~ 2 nm, respectively. On the other hand, no such energy variation is observed in PTCDA/MoS2, where the PTCDA lattice is much less distorted. The periodic variation in molecular orbital energies provides effective trapping sites for IXs. For IXs formed at PTCDI/MoS2, rapid spatial localization of the electron in the organic layer towards the interface is observed, which demonstrate the effectiveness of these interfacial IX's traps.
title: Personalized Adaptive Endurance Training with Exergames
Creators: name: Hoffmann, Katrin
Publisher: name: UNSPECIFIED
Year: 2020

description: Exergames, as part of “Serious Games”, have the potential to increase the amount of physical activity by using motivational computer game elements. This is particularly relevant for health sports since a regular and sustainable aerobic endurance training evokes a variety of health promoting effects. However, for Exergames to be deployed as efficient and effective training tools, it is essential to evoke and control individual strain corresponding to predefined training goals. In this context, the prediction of individual responses is essential for a fast and valid control of training. Inspired by a prototypical Exergame, this thesis presents five studies analyzing how aerobic endurance training based on heart rate responses can be integrated into Exergames. This includes on one hand the analysis of individual heart rate responses to the change of load and possible influencing factors modulating these responses. On the other hand, this also included the development of algorithms for individual and adaptive strain control integrating the obtained insights and knowledge from previous research. The first two studies present the development, optimization and evaluation process of a first evocation and control algorithm. Based on literature research and analyzes of heart rate responses to the change of load prior to training, an individual strain control is implemented. In two further studies, individual factors possibly influencing these responses are analyzed regarding their predictive potential. The results indicate that relatively stable parameters (e.g., age, gender, etc.) are not suitable to be used as valid prediction parameters. Thus, identical load can lead to different responses in the same participant. In contrast, variable short-term factors (e.g., mood, physical health, time of day, etc.) have a strong influence on the individual heart rate responses. Individual strain responses can vary even within short training sessions. An online prediction based on heart rate responses during training seems to have the highest potential for a valid prediction. In the last study, individual responses to the change of load are predicted using a mono-exponential equation. For this, only currently measured heart rate responses are analyzed and the final responses are incrementally calculated. The developed approach shows a satisfactory predictive potential. The main contribution of this thesis is the identification of relevant aspects for the integration of an individual optimal strain control within Exergames for aerobic endurance training. These results stimulate further interdisciplinary research on studies from sport science and informatics to develop effective and efficient Exergames used as training tools in health sports.
A high resolution line survey of IRC+10216 with Herschel. First results: Detection of warm silicon dicarbide SiC2
Creators: name: Cernicharo, J.
name: Waters, L. B. F. M.
name: Decin, L.
name: Encrenaz, P.
name: Tielens, A. G. G. M.
name: Agundez, M.
name: De Beck, E.
name: Muller, H. S. P.
name: Goicoechea, J. R.
name: Barlow, M. J.
name: Benz, A.
name: Crimier, N.
name: Daniel, F.
name: Di Giorgio, A. M.
name: Fich, M.
name: Gaier, T.
name: Garcia-Lario, P.
name: De Koter, A.
name: Khouri, T.
name: Liseau, R.
name: Lombaert, R.
name: Erickson, N.
name: Pardo, J. R.
name: Pearson, J. C.
name: Shipman, R.
name: Sanchez-Contreras, C.
name: Teyssier, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first results of a high-spectral-resolution survey of the carbon-rich evolved star IRC+10216 that was carried out with the HIFI spectrometer onboard Herschel. This survey covers all HIFI bands, with a spectral range from 488 to 1901GHz. In this letter we focus on the band-1b spectrum, in a spectral range 554.5-636.5GHz, where we identified 130 spectral features with intensities above 0.03 K and a signal-to-noise ratio >5. Detected lines arise from HCN, SiO, SiS, CS, CO, metal-bearing species and, surprisingly, silicon dicarbide (SiC2). We identified 55 SiC2 transitions involving energy levels between 300 and 900 K. By analysing these rotational lines, we conclude that SiC2 is produced in the inner dust formation zone, with an abundance of ~2x10^-7 relative to molecular hydrogen. These SiC2 lines have been observed for the first time in space and have been used to derive an SiC2 rotational temperature of ~204 K and a source-averaged column density of ~6.4x10^15 cm^-2. Furthermore, the high quality of the HIFI data set was used to improve the spectroscopic rotational constants of SiC2.
description: A&A HIFI Special Issue, 2010
SBSS: Stacking-Based Semantic Segmentation Framework for Very High Resolution Remote Sensing Image
Creators: name: Cai, Yuanzhi
name: Fan, Lei
name: Fang, Yuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Semantic segmentation of Very High Resolution (VHR) remote sensing images is a fundamental task for many applications. However, large variations in the scales of objects in those VHR images pose a challenge for performing accurate semantic segmentation. Existing semantic segmentation networks are able to analyse an input image at up to four resizing scales, but this may be insufficient given the diversity of object scales. Therefore, Multi Scale (MS) test-time data augmentation is often used in practice to obtain more accurate segmentation results, which makes equal use of the segmentation results obtained at the different resizing scales. However, it was found in this study that different classes of objects had their preferred resizing scale for more accurate semantic segmentation. Based on this behaviour, a Stacking-Based Semantic Segmentation (SBSS) framework is proposed to improve the segmentation results by learning this behaviour, which contains a learnable Error Correction Module (ECM) for segmentation result fusion and an Error Correction Scheme (ECS) for computational complexity control. Two ECS, i.e., ECS-MS and ECS-SS, are proposed and investigated in this study. The Floating-point operations (Flops) required for ECS-MS and ECS-SS are similar to the commonly used MS test and the Single-Scale (SS) test, respectively. Extensive experiments on four datasets (i.e., Cityscapes, UAVid, LoveDA and Potsdam) show that SBSS is an effective and flexible framework. It achieved higher accuracy than MS when using ECS-MS, and similar accuracy as SS with a quarter of the memory footprint when using ECS-SS.
description: 14 pages
Project AVANT Flyer
Creators: name: RTDS Group
Publisher: name: Zenodo
Year: 2024

description: The flyer provides general information about the content, the objectives and the consortium of AVANT

The flyer was created by RTDS Group as Dissemination, Exploitation and Communication partner of H2020 AVANT - Alternatives to Veterinary ANTimicrobials. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 862829.
Новые памятники VI-VII вв из Приазовья
Creators: name: Орлов, Руслан
name: Ю. Я., Рассамакін
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 430101
subject: Archaeological science

description: Орлов Р.С., Рассамакин Ю.Я. Новые памятники VI-VII вв из Приазовья — Материалы І тыс.н.э. по археологии и истории Украины и Венгрии. - Киев., 1996. - С.102-116.
Multipurpose box- and azabox-Based Immobilized Chiral Catalysts
Creators: name: Fraile, José M.
name: Pérez, Ignacio
name: Mayoral, José A.
name: Reiser, Oliver
Publisher: name: Universität Regensburg
Year: 2006
Subjects: subject: asymmetric catalysis; azabis(oxazolines); cyclopropanation; Mukaiyama aldol; supported catalysts
subject: 540 Chemie

description: Azabis(oxazolines) can be used as chiral ligands in the copper-catalyzed enantioselective Mukaiyama aldol reaction. When supported on solids, azabis(oxazoline)-copper complexes are more easily deactivated than their analogous bis(oxazoline)- copper complexes, and are not compatible with the use of coordinating solvents in the method of preparation. The performance of the immobilized catalysts (up to 86% ee) depends on the support and the reaction solvent, with some positive effect on enantioselectivity due to surface effects. The deactivation is not irreversible and the deactivated catalysts show excellent performance in the cyclopropanation reaction, providing added value to the supported multipurpose catalysts.
Project AVANT Flyer
Creators: name: RTDS Group
Publisher: name: Zenodo
Year: 2020

description: The flyer provides general information about the content, the objectives and the consortium of AVANT https://avant-project.eu/wp-content/uploads/2021/05/Avant_Flyer.pdf The flyer was created by RTDS Group as Dissemination, Exploitation and Communication partner of H2020 AVANT - Alternatives to Veterinary ANTimicrobials. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 862829.
Nanopattern-stimulated superconductor-insulator transition in thin TiN films
Creators: name: Baturina, T. I.
name: Vinokur, V. M.
name: Mironov, A. Yu.
name: Chtchelkatchev, N. M.
name: Nasimov, D. A.
name: Latyshev, A. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present the results of the comparative study of the influence of disorder on transport properties in continuous and nanoperforated TiN films. We show that nanopatterning turns a thin TiN film into an array of superconducting weak links and stimulates both, the disorder- and magnetic field-driven superconductor-to-insulator transitions, pushing them to lower degree of disorder. We find that nanopatterning enhances the role of the two-dimensional Coulomb interaction in the system transforming the originally insulating film into a more pronounced insulator. We observe magnetoresistance oscillations reflecting collective behaviour of the multiconnected nanopatterned superconducting film in the wide range of temperatures and uncover the physical mechanism of these oscillations as phase slips in superconducting weak link network.
description: 6 pages, 4 figures
One-dimensional magnetism in synthetic Pauflerite, $β$-VOSO$_4$
Creators: name: Quintero-Castro, Diana Lucia
name: Nilsen, Gøran J.
name: Meier-Kirchner, Katrin
name: Benitez-Castro, Angelica
name: Guenther, Gerrit
name: Sakakibara, Toshiro
name: Tokunaga, Masashi
name: Agu, Chidozie
name: Mandal, Ipsita
name: Tsirlin, Alexander A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have synthesized single-crystal samples of $β$-VOSO$_4$ and fully characterized their magnetic properties. Our magnetic susceptibility, high field magnetization and powder inelastic neutron scattering results are in excellent agreement with theoretical expressions for a one-dimensional spin-1/2 Heisenberg chain with an exchange parameter of $3.83(2)$ meV. Ab initio calculations identify the superexchange pathway, revealing that the spin-chain does not run along the expected crystallographic chain $a$ direction but instead between V$^{4+}$O$_{6}$ octahedra that are linked via SO$_{4}$ tetrahedra along the $b$ axis. We do not detect any phase transition to a long-range magnetic order within our experimental conditions, indicating $β$-VOSO$_4$ is very close to an ideal one-dimensional magnetic system.