cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Is Poker a Skill Game? New Insights from Statistical Physics
Creators: name: Javarone, Marco Alberto
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: During last years poker has gained a lot of prestige in several countries and, beyond to be one of the most famous card games, it represents a modern challenge for scientists belonging to different communities, spanning from artificial intelligence to physics and from psychology to mathematics. Unlike games like chess, the task of classifying the nature of poker (i.e., as 'skill game' or gambling) seems really hard and it also constitutes a current problem, whose solution has several implications. In general, gambling offers equal winning probabilities both to rational players (i.e., those that use a strategy) and to irrational ones (i.e., those without a strategy). Therefore, in order to uncover the nature of poker, a viable way is comparing performances of rational versus irrational players during a series of challenges. Recently, a work on this topic revealed that rationality is a fundamental ingredient to succeed in poker tournaments. In this study we analyze a simple model of poker challenges by a statistical physics approach, with the aim to uncover the nature of this game. As main result we found that, under particular conditions, few irrational players can turn poker into gambling. Therefore, although rationality is a key ingredient to succeed in poker, also the format of challenges has an important role in these dynamics, as it can strongly influence the underlying nature of the game. The importance of our results lies on related implications, as for instance in identifying the limits poker can be considered as a `skill game' and, as a consequence, which kind of format must be chosen to devise algorithms able to face humans.
description: 12 pages, 4 figures
Low Frequency Quasi-periodic Oscillation in MAXI J1820+070: Revealing distinct Compton and Reflection Contributions
Creators: name: Gao, Chenxu
name: Yan, Zhen
name: Yu, Wenfei
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: X-ray low frequency quasi-periodic oscillations (LFQPOs) of black hole X-ray binaries, especially those type-C LFQPOs, are representative timing signals of black hole low/hard state and intermediate state, which has been suspected as to originate due to Lense-Thirring precession of the accretion flow. Here we report an analysis of one of the \emph{Insight}-HXMT observations of the black hole transient MAXI J1820$+$070 taken near the flux peak of its hard spectral state during which strong type-C LFQPOs were detected in all three instruments up to photon energies above 150 keV. We obtained and analyzed the short-timescale X-ray spectra corresponding to high- and low-intensity phases of the observed LFQPO waveform with a spectral model composed of Comptonization and disk reflection components. We found that the normalization of the spectral model is the primary parameter that varied between the low and high-intensity phases. The variation in the LFQPO flux at the hard X-ray band (> 100 keV) is from the Compton component alone, while the energy-dependent variation in the LFQPO flux at lower energies (< 30 keV) is mainly caused by the reflection component with a large reflection fraction in response to the incident Compton component. The observed X-ray LFQPOs thus should be understood as manifesting the original timing signals or beats in the hard Compton component, which gives rise to additional variability in softer energies due to disk reflection.
description: 8 pages, 4 figures, accepted for publication in MNRAS
Impact of Cost Decline of RenewableTechnologies on Cross-Border ElectricityTrade in the South Asia Region
Creators: name: K. Parikh, Jyoti
name: Saini, Vinay
name: Saini, Navpreet
Publisher: name: Zenodo
Year: 2022
Subjects: cross-border electricity trade
BBIN region
renewable technologies

description: In order to assess the impact of power trade in the backdrop of falling Renewable Energy technology (RE) prices, we developed a power system model for each country in the South Asia BBIN sub-region (Bangladesh, Bhutan, India, and Nepal). High Trade and Low Trade scenarios are developed with unrestricted and restricted power trade possibilities respectively. Cost decline in RE increases Cross- Border Electricity Trade (CBET) from 13 TWh in 2019 to 976 TWh by 2050. The share of RE capacities in the total installed capacities for the region rises to 75% by 2050 under the High Scenario compared to 68% in the Low Scenario. Higher solar and wind mobilize more hydropower and reduce coal capacities and CO2 emissions. Thus, the electricity trade helps to reach higher utilization of power capacities and reduces costs and CO2 emissions
description: This material has been produced under the Climate Compatible Growth (CCG) programme. CCG brings together leading research organizations and is led out of the STEER centre, Loughborough University. CCG is funded by UK aid from the UK government. However, the views expressed herein do not necessarily reflect the UK government's official policies.
The role of the boundary term in $f(Q,B)$ symmetric teleparallel gravity
Creators: name: Capozziello, Salvatore
name: De Falco, Vittorio
name: Ferrara, Carmen
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the framework of metric-affine gravity, we consider the role of the boundary term in Symmetric Teleparallel Gravity assuming $f(Q,B)$ models where $f$ is a smooth function of the non-metricity scalar $Q$ and the related boundary term $B$. Starting from a variational approach, we derive the field equations and compare them with respect to those of $f(Q)$ gravity in the limit of $B\to0$. It is possible to show that $f(Q,B)=f(Q-B)$ models are dynamically equivalent to $f(R)$ gravity as in the case of teleparallel $f(\tilde{B}-T)$ gravity (where $B\neq \tilde{B}$). Furtherrmore, conservation laws are derived. In this perspective, considering boundary terms in $ f(Q)$ gravity represents the last ingredient towards the Extended Geometric Trinity of Gravity, where $f(R)$, $f(T,\tilde{B})$, and $f(Q,B)$ can be dealt with under the same standard. We also compare and discuss about the Gibbons-Hawking-York boundary term of General Relativity and the boundary term $B$ in $f(Q,B)$ gravity.
description: 8 pages, 1 figure, accepted for publication in EPJC
Letter from Michael Ventris to Emmett L. Bennett, Jr., July 30, 1955
Creators: name: Ventris, Michael
Publisher: name: The University of Texas at Austin
Year: 1955
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Ventris discusses his time in Knossos working on 1076 fragments of Linear B, arranging and labeling them. Additionally, he proposes three methods of writing corrections to the Browning publication: reprinting the whole text, the entire line, or only the word being corrected. He discusses how each correction will be attributed to himself (V), Bennett (B) or Chadwick (C).
MOESM1 of Specific tracking of xylan using fluorescent-tagged carbohydrate-binding module 15 as molecular probe
Creators: name: Khatri, Vinay
name: Hébert-Ouellet, Yannick
name: Meddeb-Mouelhi, Fatma
name: Beauregard, Marc
Publisher: name: Figshare
Year: 2016
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Inorganic Chemistry

description: Additional file 1: Figure S1. SDS-PAGE analysis of the OC15 probe purified by affinity chromatography. The expected molecular weight of the OC15 fusion protein is 44.68 kDa. A 12 % polyacrylamide gel was used for SDS-PAGE analysis. Well M: Precision plus protein standards (5 µg). Well OC15: Purified OC15 probe (10 µg).
title: Мектепке дейінгі тәрбие
Creators: name: ELS IPR BOOKS
Publisher: name: EDP Hub (Идипи Хаб), Профобразование
Year: 2025

description: Оқулықта мектеп жасына дейінгі кезеңдегі балаларды тәрбиелеудің және оқытудың теориясы мен әдістемесі – инновациялық басқару жолдары, тренингтер ұйымдастыру тәсілдері, педагогикалық жағдаяттарды шешу әдістері сипатталған. Болашақ тәрбиеші педагогтерде қалыптастырылатын ғылыми-теориялық білім негіздері және оны тәжірибеде ұштастырудың жолдары қарастырылған. Ұсынылған оқулық «Мектепке дейінгі тәрбие және оқыту» мамандығы бойынша оқитын, «Мектепке дейінгі тәрбие» пәнін оқитын техникалық және кәсіптік білім беру студенттеріне арналған. Оны мектепке дейінгі ұйымдардың қызметкерлері мен ата-аналар қоғамы да қолдана алады.
Does a radio jet drive the massive multi-phase outflow in the ultra-luminous infrared galaxy IRAS 10565+2448?
Creators: name: Su, Renzhi
name: Mahony, Elizabeth K.
name: Gu, Minfeng
name: Sadler, Elaine M.
name: Curran, S. J.
name: Allison, James R.
name: Yoon, Hyein
name: Aditya, J. N. H. S.
name: Chandola, Yogesh
name: Chen, Yongjun
name: Moss, Vanessa A.
name: Wu, Zhongzu
name: Shao, Xi
name: Liu, Xiang
name: Glowacki, Marcin
name: Whiting, Matthew T.
name: Weng, Simon
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present new upgraded Giant Metrewave Radio Telescope (uGMRT) HI 21-cm observations of the ultra-luminous infrared galaxy IRAS 10565+2448, previously reported to show blueshifted, broad, and shallow HI absorption indicating an outflow. Our higher spatial resolution observations have localised this blueshifted outflow, which is $\sim$ 1.36 kpc southwest of the radio centre and has a blueshifted velocity of $\sim 148\,\rm km\,s^{-1}$ and a full width at half maximum (FWHM) of $\sim 581\,\rm km\,s^{-1}$. The spatial extent and kinematic properties of the HI outflow are consistent with the previously detected cold molecular outflows in IRAS 10565+2448, suggesting that they likely have the same driving mechanism and are tracing the same outflow. By combining the multi-phase gas observations, we estimate a total outflowing mass rate of at least $140\, \rm M_\odot \,yr^{-1}$ and a total energy loss rate of at least $8.9\times10^{42}\,\rm erg\,s^{-1}$, where the contribution from the ionised outflow is negligible, emphasising the importance of including both cold neutral and molecular gas when quantifying the impact of outflows. We present evidence of the presence of a radio jet and argue that this may play a role in driving the observed outflows. The modest radio luminosity $L_{\rm1.4GHz}$ $\sim1.3\times10^{23}\,{\rm W\,Hz^{-1}}$ of the jet in IRAS 10565+2448 implies that the jet contribution to driving outflows should not be ignored in low radio luminosity AGN.
description: 12 pages, 9 figures, accepted for publication in MNRAS
PNT-Edge: Towards Robust Edge Detection with Noisy Labels by Learning Pixel-level Noise Transitions
Creators: name: Xuan, Wenjie
name: Zhao, Shanshan
name: Yao, Yu
name: Liu, Juhua
name: Liu, Tongliang
name: Chen, Yixin
name: Du, Bo
name: Tao, Dacheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Relying on large-scale training data with pixel-level labels, previous edge detection methods have achieved high performance. However, it is hard to manually label edges accurately, especially for large datasets, and thus the datasets inevitably contain noisy labels. This label-noise issue has been studied extensively for classification, while still remaining under-explored for edge detection. To address the label-noise issue for edge detection, this paper proposes to learn Pixel-level NoiseTransitions to model the label-corruption process. To achieve it, we develop a novel Pixel-wise Shift Learning (PSL) module to estimate the transition from clean to noisy labels as a displacement field. Exploiting the estimated noise transitions, our model, named PNT-Edge, is able to fit the prediction to clean labels. In addition, a local edge density regularization term is devised to exploit local structure information for better transition learning. This term encourages learning large shifts for the edges with complex local structures. Experiments on SBD and Cityscapes demonstrate the effectiveness of our method in relieving the impact of label noise. Codes are available at https://github.com/DREAMXFAR/PNT-Edge.
description: Accepted by ACM-MM 2023
On the local form of static plane symmetric space-times in the presence of matter
Creators: name: Gomes, Leandro G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: For any configuration of a static plane-symmetric distribution of matter along space-time, there are coordinates where the metric can be put explicitly as a functional of the energy density and pressures. It satisfies Einstein equations as far as we require the conservation of the energy-momentum tensor, which is the single ODE for self-gravitating hydrostatic equilibrium. As a direct application, a general solution is given when the pressures are linearly related to the energy density, recovering, as special cases, most of known solutions of static plane-symmetric Einstein equations.
description: 9 pages
Letter from Michael Ventris to Emmett L. Bennett, Jr., October 18, 1955
Creators: name: Ventris, Michael
Publisher: name: The University of Texas at Austin
Year: 1955
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Ventris discusses upcoming steps to collating a list of corrections and readings on Linear B tablets; he wishes to publish a clean copy of all the texts over again, with all corrections, but due to monetary constraints, is posting an errata only. He discusses the possibility of joins in the 7000 series of D- tablets and mentions that the microfilms of that lot are particularly lacking.
Transverse-Traceless Gravitational Waves In A Spatially Flat FLRW Universe: Causal Structure from Dimension Reduction
Creators: name: Chu, Yi-Zen
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This work was mainly driven by the desire to explore, to what extent embedding some given geometry in a higher dimensional flat one is useful for understanding the causal structure of classical fields traveling in the former, in terms of that in the latter. We point out, in the 4D spatially flat FLRW universe, that the causal structure of transverse-traceless (TT) gravitational waves can be elucidated by first reducing the problem to a 2D Minkowski wave equation with a time dependent potential, where the relevant Green's function is pure tail -- waves produced by a physical source propagate strictly within the null cone. By viewing this 2D world as embedded in a 4D one, the 2D Green's function can also be seen to be sourced by a cylindrically symmetric scalar field in 3D. From both the 2D wave equation as well as the 3D scalar perspective, we recover the exact solution of the 4D graviton tail, for the case where the scale factor written in conformal time is a power law. There are no TT gravitational wave tails when the universe is radiation dominated because the background Ricci scalar is zero. In a matter dominated one, we estimate the amplitude of the tail to be suppressed relative to its null counterpart by both the ratio of the duration of the source to the age of the universe $η_0$, and the ratio of the observer-source spatial distance (at the observer's time) to the same $η_0$. In a universe driven primarily by a cosmological constant, the tail contribution to the background FLRW geometry after the source has ceased, is the conformal factor $a^2$ times a spacetime-constant symmetric matrix proportional to the spacetime volume integral of the TT part of the source's stress-energy-momentum tensor. In other words, massless spin-2 gravitational waves exhibit a tail-induced memory effect in 4D de Sitter spacetime.
description: 29 pages, 2 figures
A new non-Hermitian E2-quasi-exactly solvable model
Creators: name: Fring, Andreas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a previously unknown $E_2$-quasi-exactly solvable non-Hermitian model whose eigenfunctions involve weakly orthogonal polynomials obeying three-term recurrence relations that factorize beyond the quantization level. The model becomes Hermitian when one of its two parameters is fixed to a specific value. We analyze the double scaling limit of this model leading to the complex Mathieu equation. The norms, Stieltjes measures and moment functionals are evaluated for some concrete values of one of the two parameters.
description: 8 pages
The Raspberry Model for Hydrodynamic Interactions Revisited. II. The Effect of Confinement
Creators: name: de Graaf, Joost
name: Peter, Toni
name: Fischer, Lukas P.
name: Holm, Christian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The so-called 'raspberry' model refers to the hybrid lattice-Boltzmann (LB) and Langevin molecular dynamics scheme for simulating the dynamics of suspensions of colloidal particles, originally developed by [V. Lobaskin and B. Dünweg, New J. Phys. 6, 54 (2004)], wherein discrete surface points are used to achieve fluid-particle coupling. In this paper, we present a follow up to our study of the effectiveness of the raspberry model in reproducing hydrodynamic interactions in the Stokes regime for spheres arranged in a simple-cubic crystal [L. Fischer, et al., J. Chem. Phys. 143, 084108 (2015)]. Here, we consider the accuracy with which the raspberry model is able to reproduce such interactions for particles confined between two parallel plates. To this end, we compare our LB simulation results to established theoretical expressions and finite-element calculations. We show that there is a discrepancy between the translational and rotational mobility when only surface coupling points are used, as also found in Part I of our joint publication. We demonstrate that adding internal coupling points to the raspberry, can be used to correct said discrepancy in confining geometries as well. Finally, we show that the raspberry model accurately reproduces hydrodynamic interactions between a spherical colloid and planar walls up to roughly one LB lattice spacing.
description: 13 pages, 8 figures
Additional file 6: Figure S6. of Breast cancer stem cell selectivity of synthetic nanomolar-active salinomycin analogs
Creators: name: Xiaoli Huang
name: Borgström, Björn
name: Kempengren, Sebastian
name: Persson, Lo
name: Hegardt, Cecilia
name: Strand, Daniel
name: Oredsson, Stina
Publisher: name: Figshare
Year: 2016
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Plant Biology
subject: Computational Biology

description: Representative cytograms of ALDH assay obtained using flow cytometry. JIMT-1 cells were treated with salinomycin or salinomycin analogs at IC50 for 72 h. SA: salinomycin, 2a: carbamate, 2b: acetate, 2c: carbonate and 3: C1-methyl ester. (DOCX 1597 kb)
Letter from Michael Ventris to Emmett L. Bennett, Jr., November 18, 1955
Creators: name: Ventris, Michael
Publisher: name: The University of Texas at Austin
Year: 1955
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Michael Ventris pushes aside the discussion of fractions and mathematics on Linear A tablets and instead discusses his ideas for the restructuring of the Scripta Minoa III. He discusses how Brice and others are planning to approach a restructure, and brings forth his own ideas for renumbering the syllograms seen in Linear A tablets.
Self-diffusiophoresis of Janus particles in near-critical mixtures
Creators: name: Würger, Alois
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We theoretically study the self-propulsion of a laser-heated Janus particle in a near critical waterlutidine mixture, and relate its velocity vp and squirmer parameter \b{eta} to the wetting properties of its two hemispheres. For non-ionic surface forces, the particle moves the active cap ahead, except at strong driving, where a more complex behavior occurs if one of the hemispheres attracts water and the other lutidine. Both vp and \b{eta} show non-monotonic dependencies on the heating power, and may even change sign. Including the drift of the counterions due to the composition gradient, we find that a charged cap with lutidine affinity drives the particle the cap ahead, and with water affinity in the opposite direction, in agreement with experimental findings.
description: 5 pages, 5 figures, includes supplementary material
An overlapping domain decomposition method for the solution of parametric elliptic problems via proper generalized decomposition
Creators: name: Discacciati, Marco
name: Evans, Ben J.
name: Giacomini, Matteo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: A non-intrusive proper generalized decomposition (PGD) strategy, coupled with an overlapping domain decomposition (DD) method, is proposed to efficiently construct surrogate models of parametric linear elliptic problems. A parametric multi-domain formulation is presented, with local subproblems featuring arbitrary Dirichlet interface conditions represented through the traces of the finite element functions used for spatial discretization at the subdomain level, with no need for additional auxiliary basis functions. The linearity of the operator is exploited to devise low-dimensional problems with only few active boundary parameters. An overlapping Schwarz method is used to glue the local surrogate models, solving a linear system for the nodal values of the parametric solution at the interfaces, without introducing Lagrange multipliers to enforce the continuity in the overlapping region. The proposed DD-PGD methodology relies on a fully algebraic formulation allowing for real-time computation based on the efficient interpolation of the local surrogate models in the parametric space, with no additional problems to be solved during the execution of the Schwarz algorithm. Numerical results for parametric diffusion and convection-diffusion problems are presented to showcase the accuracy of the DD-PGD approach, its robustness in different regimes and its superior performance with respect to standard high-fidelity DD methods.
Additional file 6: of Genomic analysis of the nitrate-respiring Sphingopyxis granuli (formerly Sphingomonas macrogoltabida) strain TFA
Creators: name: García-Romero, Inmaculada
name: Pérez-Pulido, Antonio
name: González-Flores, Yolanda
name: Reyes-Ramírez, Francisca
name: Santero, Eduardo
name: Floriano, Belén
Publisher: name: Figshare
Year: 2016
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Pathway Tools biodegradation pathways predicted in TFA. ID of genes involved in each reaction is shown in red. (PDF 53 kb)
Letter from Michael Ventris to Emmett L. Bennett, Jr., December 8, 1955
Creators: name: Ventris, Michael
Publisher: name: The University of Texas at Austin
Year: 1955
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Ventris sends a brief example of his current work varityping the Knossos tablets to Bennett to show him the format. He has chosen to reduce the /B, /C, /Vs when possible, and the keep them only in cases where readings are unclear or where he and Bennett disagree on the reading.
Letter from Michael Ventris to Emmett L. Bennett, Jr., January 30, 1956
Creators: name: Ventris, Michael
Publisher: name: The University of Texas at Austin
Year: 1956
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Ventris sends a postcard to thank Emmett for copies of the Pylos tablets. He informs Emmett he is working on numbering Linear B tablets and that his publication for Eranos about furniture will be printed soon.
Models for energy and transport policymaking in Zambia
Creators: name: Tembo, Bernard
name: Pye, Steve
name: Cronin, Jennifer
name: Millot, Ariane
Publisher: name: Zenodo
Year: 2022
Subjects: public policy
modelling
SDGs
resource allocation
development

description: This brief makes the case for incorporating models into Zambia's policymaking process, particularly for the energy and transport sectors. It does this through looking at the current state of modelling and policymaking in Zambia and by interviewing key Zambian stakeholders. Considering the many challenges in these two sectors, the Government needs to carefully plan and efficiently allocate its resources. Models, simplified representations of real-world systems, are critical to this process. However, energy and transport models use in supporting policymaking in Zambia is limited. To enhance their use, we recommend approaches for creating high-level awareness of models among policymakers, strengthening capacity and skills, and better institutional arrangements. This will increase responsiveness to policy needs and enhance the sustainability of the models developed.
description: This material has been produced under the Climate Compatible Growth (CCG) programme, which brings together leading research organizations and is led out of the STEER centre, Loughborough University. CCG is funded by UK aid from the UK government. However, the views expressed herein do not necessarily reflect the UK government's official policies.
6$^+$ isomers in neutron-rich Sn-isotopes beyond N$=82$ and effective interaction
Creators: name: Maheshwari, Bhoomika
name: Jain, Ashok Kumar
name: Srivastava, P. C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent observation of the 6$^+$ seniority isomers and measurements of the B${(E2)}$ values in the $^{134-138}$Sn isotopes lying close to the neutron drip line have raised some questions about the validity of the currently used effective interactions in the neutron-rich region. Simpson $\it{et}$ $\it{al.}$ [Phys. Rev. Lett. $\textbf{113}$, 132502 (2014)] had to modify the diagonal and non-diagonal $νf_{7/2}^2$ two body matrix elements of the "${Vlk}$" interaction by ${\sim150}$ keV in their shell model calculations in order to explain the data of $^{136}$Sn. In contrast, we are able to explain the observed energy levels and the B${(E2)}$ values after marginal reduction of the same set of matrix elements by ${25}$ keV in the "RCDB" (Renormalized CD-Bonn) interaction. The observed mismatch in reproducing the data of $^{136}$Sn is due to the seniority mixing. Further, we do not find it necessary to consider the core excitations, and the "RCDB" interaction seems better suited to explain the data beyond N$=82$ magic number.
description: 5 pages, 4 figures
On the origin of UV-dim stars: a population of rapidly rotating shell stars?
Creators: name: Martocchia, Silvia
name: Bastian, Nate
name: Saracino, Sara
name: Kamann, Sebastian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The importance of stellar rotation in setting the observed properties of young star clusters has become clearer over the past decade, with rotation being identified as the main cause of the observed extended main sequence turn-off (eMSTO) phenomenon and split main-sequences. Additionally, young star clusters are observed to host large fractions of rapidly rotating Be stars, many of which are seen nearly equator-on through decretion disks that cause self-extinction (the so called "shell stars"). Recently, a new phenomenon has been reported in the $\sim1.5$ Gyr star cluster NGC 1783, where a fraction of the main sequence turn-off stars appears abnormally dim in the UV. We investigate the origin of these "UV-dim" stars by comparing the UV colour-magnitude diagrams of NGC 1850 ($\sim100$ Myr), NGC 1783 ($\sim1.5$ Gyr), NGC 1978 ($\sim2$ Gyr) and NGC 2121 ($\sim2.5$ Gyr), massive star clusters in the Large Magellanic Cloud. While the younger clusters show a non-negligible fraction of UV-dim stars, we find a significant drop of such stars in the two older clusters. This is remarkable as clusters older than $\sim$2 Gyr do not have an eMSTO, thus a large populations of rapidly rotating stars, because their main sequence turn-off stars are low enough in mass to slow down due to magnetic braking. We conclude that the UV-dim stars are likely rapidly rotating stars with decretion disks seen nearly equator-on (i.e., are shell stars) and discuss future observations that can confirm or refute our hypothesis.
description: 9 pages, 6 Figures. Accepted for publication in MNRAS
IMPLEMENTATION OF MULTI-CHANNEL DISTRIBUTION AS AN ALTERNATIVE MARKETING BREED-FREE CHICKEN TO INCREASE THE INCOME OF FARMERS' HOUSEHOLDS IN SOUTH SULAWESI
Creators: name: HASANUDDIN REMMANG
name: ACHMAD ANZHARI
name: ARNAS HASANUDDIN
name: ASKARI HASNUDDIN
Publisher: name: Zenodo
Year: 2024
Subjects: Business Behavior, Distribution Channels, Breeder Income.

description: Abstract

This research aims to provide understanding to fishermen as free-range chicken producers and marketing institutions about which marketing channels provide higher income levels than other channels. Furthermore, this research also aims to increase knowledge for free-range chicken producers to carry out product diversification, so that the added value of chicken prices is higher. With product improvements, of course free-range chicken producers will increase their business partners and in the end sales volume will increase and business profits will also increase. This product diversification step is a manifestation of a change in producer behavior from catching directly selling (TLJ) to picking and selling behavior (POL).The results of this research found that the income received by marketing institutions involved in the free-range chicken trade was influenced by the marketing functions carried out. The behavior of marketing institutions in each channel where the sales price of tailed chickens to consumers increased on average between 17.50% to 30.67%. The increase in selling prices for each institution is due to the treatment of the marketing function, among others; transportation functions, advertising, cleaning, maintenance, and so on. With the existence of alternative marketing of free-range chickens as a marketing activity to distribute from breeders to final consumers with the aim of getting more expensive economic value. Collecting traders selling free-range chickens to retailers have incurred costs for several marketing functions, as well as other marketing institutions so that the price paid by final consumers is more expensive. The conclusion is that the longer the chicken marketing distribution channel tends to be more expensive than the short marketing channel. However, you need to know that the application of marketing channels, both long and short, is influenced by the characteristics of the product being marketed.
Unique properties of the optical activity in noncentrosymmetric superconductors: sum rule, missing area, and relation with the superconducting Edelstein effect
Creators: name: Shinada, Koki
name: Peters, Robert
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present general properties of the optical activity in noncentrosymmetric materials, including superconductors. We derive a sum rule of the optical activity in general electric states and show that the summation of the spectrum is zero, which is independent of the details of electric states. The optical activity has a $δ$-function singularity that vanishes in normal phases. However, the singularity emerges in superconducting phases, corresponding to the Meissner effect in the optical conductivity. The spectrum decreases by the superconducting gap and has a missing area compared to the normal phase. This area is exactly equivalent to the coefficient of the $δ$-function singularity due to the universal sum rule. Furthermore, the coefficient is exactly equivalent to the superconducting Edelstein effect, which has not yet been observed in experiments. Thus, this measurement of the missing area offers an alternative way to observe the superconducting Edelstein effect.
A low frequency sub-arcsecond view of powerful radio galaxies in rich-cluster environments: 3C 34 and 3C 320
Creators: name: Mahatma, V. H.
name: Basu, A.
name: Hardcastle, M. J.
name: Morabito, L. K.
name: van Weeren, R. J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Models of radio galaxy physics have been primarily based on high frequency ($\geqslant$1 GHz) observations of their jets, hotspots, and lobes. Without highly resolved low frequency observations, which provide information on older plasma, our understanding of the dynamics of radio galaxies and their interaction with their environment is limited. Here, we present the first sub-arcsecond (0.3") resolution images at 144 MHz of two powerful radio galaxies situated in rich cluster environments, namely 3C 34 and 3C 320, using the International Low Frequency Array Telescope. We detect for the first time at low frequencies a plethora of structures in these objects, including strikingly large filaments across the base of the lobes in both sources, which are spatially associated with dense regions in the ambient medium. For 3C 34 we report a spectral flattening in the region of the central filament, suggesting that the origin of the filaments is related to the presence of large-scale ordered magnetic fields. We also report periodic total intensity and spectral index banding of diffuse emission in the eastern lobe, seen for the first time in radio galaxy lobes. The hotspot complexes are resolved into multiple fragments of varying structure and spectral index; we discuss the implications for particle acceleration and jet termination models. We find at most smooth gradients in the spectral behaviour of the hotspot structure suggesting that particle acceleration, if present, may be occurring throughout the complex, in contrast to simple models, but different jet termination models may apply to both sources.
description: 16 pages, 7 figures, 2 tables. Accepted for publication in Monthly Notices of the Royal Astronomical Society, 2023 February 01
Consimilarity and quaternion matrix equations $AX-\hat{X}B=C$, $X-A\hat{X}B=C$
Creators: name: Klimchuk, Tatiana
name: Sergeichuk, Vladimir V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 15A21, 15A24, 15B33

description: L.Huang [Linear Algebra Appl. 331 (2001) 21-30] gave a canonical form of a quaternion matrix $A$ with respect to consimilarity transformations $\tilde{S}^{-1}AS$ in which $S$ is a nonsingular quaternion matrix and $\tilde{h}:=a-bi+cj-dk$ for each quaternion $h=a+bi+cj+dk$. We give an analogous canonical form of a quaternion matrix with respect to consimilarity transformations $\hat{S}^{-1}AS$ in which $h\mapsto\hat{h}$ is an arbitrary involutive automorphism of the skew field of quaternions. We apply the obtained canonical form to the quaternion matrix equations $AX-\hat{X}B=C$ and $X-A\hat{X}B=C$.
Letter from Emmett L. Bennett, Jr. to Michael Ventris, May 20, 1950
Creators: name: Bennett, Emmett L
Publisher: name: The University of Texas at Austin
Year: 1950
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Bennett thanks Ventris for his recent report and communications, and requests that Ventris send two additional comments to deposit in Minoan archives at Yale and Cincinnati. He updates Ventris on other Minoan scholars; he mentions an upcoming article from Georgiev and reports the death of Alice Kober.
Nano-friction in cavity quantum electrodynamics
Creators: name: Fogarty, T.
name: Cormick, C.
name: Landa, H.
name: Stojanović, Vladimir M.
name: Demler, E.
name: Morigi, Giovanna
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The dynamics of cold trapped ions in a high-finesse resonator results from the interplay between the long-range Coulomb repulsion and the cavity-induced interactions. The latter are due to multiple scatterings of laser photons inside the cavity and become relevant when the laser pump is sufficiently strong to overcome photon decay. We study the stationary states of ions coupled with a mode of a standing-wave cavity as a function of the cavity and laser parameters, when the typical length scales of the two self-organizing processes, Coulomb crystallization and photon-mediated interactions, are incommensurate. The dynamics are frustrated and in specific limiting cases can be cast in terms of the Frenkel-Kontorova model, which reproduces features of friction in one dimension. We numerically recover the sliding and pinned phases. For strong cavity nonlinearities, they are in general separated by bistable regions where superlubric and stick-slip dynamics coexist. The cavity, moreover, acts as a thermal reservoir and can cool the chain vibrations to temperatures controlled by the cavity parameters and by the ions phase. These features are imprinted in the radiation emitted by the cavity, which is readily measurable in state-of-art setups of cavity quantum electrodynamics.
description: 9 pages, 7 figures
Policy and legal framework for Renewable energy in Zambia: Opportunities and challenges
Creators: name: Kalaba, Felix Kanungwe
name: Chilombo, Andrew
name: Kaoma, Humphrey
Publisher: name: Zenodo
Year: 2022
Subjects: renewable energy
climate change
policy analysis
mitigation; adaptation

description: Zambia has been experiencing extreme weather events, particularly droughts, floods, shortened rainy seasons, high temperatures, and frequent zoonotic, human, and food crop diseases. These events have put adaptation and mitigation on the policy map. The role of renewable energy has increasingly featured in policy discussions to reduce deforestation and forest degradation to build community resilience and climate change adaptive capacities and to drive socio-economic development. An analysis of relevant official documents, and interviews with key informants, reveal a lack of investment in renewable energy, limited policy mainstreaming and alignment, and low levels of adoption of renewable energy sources. As a result of these findings, this brief calls particularly for a multisectoral approach, robust awareness campaigns, a coherent policy environment, and increased institutional capacities to boost investments in the renewable energy sector.
description: The authors would like to acknowledge Envirosmart Solutions for the logistical support to facilitate the interactions with key informants during data collection. This material has been produced under the Climate Compatible Growth (CCG) programme, which brings together leading research organizations and is led out of the STEER centre, Loughborough University. CCG is funded by UK aid from the UK government. However, the views expressed herein do not necessarily reflect the UK government's official policies.
Science and engineering for what? A large-scale analysis of students' projects in science fairs
Creators: name: Eloy, Adelmo
name: Ferraz, Thomas Palmeira
name: Alves, Fellip Silva
name: Lopes, Roseli de Deus
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Physics Education (physics.ed-ph)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Science and Engineering fairs offer K-12 students opportunities to engage with authentic STEM practices. Particularly, students are given the chance to experience authentic and open inquiry processes, by defining which themes, questions and approaches will guide their scientific endeavors. In this study, we analyzed data from over 5,000 projects presented at a nationwide science fair in Brazil over the past 20 years using topic modeling to identify the main topics that have driven students' inquiry and design. Our analysis identified a broad range of topics being explored, with significant variations over time, region, and school setting. We argue those results and proposed methodology can not only support further research in the context of science fairs, but also inform instruction and design of contexts-specific resources to support students in open inquiry experiences in different settings.
description: Published at International Conference of the Learning Sciences - ICLS 2023
AFRIG'IYLAR VA FARIG'UNIYLAR ASLIDA BIR SULOLAMI?
Creators: name: Rajapov, Mardonbek
Publisher: name: Zenodo
Year: 2024

description: O‘rta asrlar Turon tarixining eng murakkab va bahsli sahifalaridan biri Afrig‘iylar va Farig‘uniylar sulolalari bilan bog‘liq. Ular haqidagi ma’lumotlarning turli manbalarda turlicha yoritilishi, bir-biriga zid fikrlarning mavjudligi tadqiqotchilar orasida ko‘plab savollarni uyg‘otadi. Ayniqsa, ushbu ikki sulolaning aslida bir sulolaning turli nomlarimi yoki ular mutlaqo boshqa-boshqa sulolalarmi, degan savol ko‘pchilikni o‘ylantiradi. Ba’zi tarixchilar Afrig‘iylar va Farig‘uniylar o‘rtasidagi tarixiy, madaniy va etnik bog‘liqlikni ta’kidlab, ularni bir sulola deb hisoblashadi. Boshqa tadqiqotchilar esa, bu qarashlarga qarshi fikr bildirib, ushbu ikki sulola o‘rtasidagi farqlarni ko‘rsatishga urinadilar.
Multicolour Optical Variability Monitoring of Blazars with High Time Resolution
Creators: name: Chang, X.
name: Yi, T. F.
name: Xiong, D. R.
name: Liu, C. X.
name: Yang, X.
name: Li, H. Z.
name: Gong, Y. L.
name: Na, W. W.
name: Li, Y.
name: Chen, Z. H.
name: Chen, J. P.
name: Mao, L. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We carried out a high time-resolution, multicolour optical observing campaign for eight $γ$-ray detected blazars during 2010-2020. We analyze flux variations, correlations between magnitudes and colours on different timescales. Intraday variability (IDV) is detected in all eight sources of our sample. A bluer-when-brighter (BWB) chromatic trend is dominant on intraday timescales. On the short timescales, the BWB trend only shows up in ON 231, 3C 279, BL Lacertae and 1E 1458.8+2249. There is a BWB trend in 3C 279 on the long timescale. We estimate the upper limits of black hole mass for three blazars (i.e. ON 321, 1ES 1426+42.8, PKS 1510-089) using variability timescales. On April 13, 2010 a potential quasi-periodic oscillation (QPO) with the period of $P=48.67\pm13.90$ minutes is found in 1ES 1426+42.8. The light curve on March 16, 2021 further shows the existence of the QPO phenomenon. The QPO in this target deserves further observation and confirmation.
description: 18 pages, 8 figures, accepted in MNRAS
Plan S und cOAlition S: Einordnung und Auswirkungen
Creators: name: Pieper, Dirk
Publisher: name: Kolloquium Wissensinfrastruktur
Year: 2019

description: Mit Plan S beabsichtigen die in der cOAlition S versammelten Forschungsförderer, das sofortige Open-Access-Publizieren von Forschungsergebnissen zum Durchbruch zu verhelfen. Ziel ist es, dass ab 2021 alle Publikationen aus öffentlich geförderten Projekten sofort frei zugänglich sind. Die Plan-S-Implementierungsrichtlinien beinhalten detaillierte Vorschläge zur Umsetzung, die aktuell (29.11.2019) von 22 nationalen und internationalen Forschungsförderern sowie der Europäischen Kommission und dem Europäischen Forschungsrat unterstützt werden. Der Vortrag stellt Struktur, wesentliche Inhalte sowie Auswirkungen des Plan S vor.
description: Kolloquium Wissensinfrastruktur, Wintersemester 2019/2020
Hickson-like compact groups inhabiting different environments
Creators: name: Taverna, A.
name: Salerno, J. M.
name: Daza-Perilla, I. V.
name: Diaz-Gimenez, E.
name: Zandivarez, A.
name: Martinez, H. J.
name: Ruiz, A. N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Although Compact Groups of galaxies (CGs) have been envisioned as isolated extremely dense structures in the Universe, it is accepted today that many of them could be not as isolated as thought. In this work, we study Hickson-like CGs identified in the Sloan Digital Sky Survey Data Release 16 to analyse these systems and their galaxies when embedded in different cosmological structures. To achieve this goal, we identify several cosmological structures where CGs can reside: Nodes of filaments, Loose Groups, Filaments and cosmic Voids. Our results indicate that 45 per cent of CGs do not reside in any of these structures, i.e., they can be considered non-embedded or isolated systems. Most of the embedded CGs are found inhabiting Loose Groups and Nodes, while there are almost no CGs residing well inside cosmic Voids. Some physical properties of CGs vary depending on the environment they inhabit. CGs in Nodes show the largest velocity dispersions, the brightest absolute magnitude of the first-ranked galaxy, and the smallest crossing times, while the opposite occurs in Non-Embedded CGs. When comparing galaxies in all the environments and galaxies in CGs, CGs show the highest fractions of red/early-type galaxy members in most of the absolute magnitudes ranges. The variation between galaxies in CGs inhabiting one or another environment is not as significant as the differences caused by belonging or not to a CG. Our results suggest a plausible scenario for galaxy evolution in CGs in which both, large-scale and local environments play essential roles.
description: 16 pages, 9 figures, 1 table, accepted for publication in MNRAS