cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The prebiotic molecular inventory of Serpens SMM1 I. An investigation of the isomers CH$_{3}$NCO and HOCH$_{2}$CN
Creators: name: Ligterink, N. F. W.
name: Ahmadi, A.
name: Coutens, A.
name: Calcutt, Ł. Tychoniec H.
name: van Dishoeck, E. F.
name: Linnartz, H.
name: Jørgensen, J. K.
name: Garrod, R. T.
name: Bouwman, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Methyl isocyanate (CH$_{3}$NCO) and glycolonitrile (HOCH$_{2}$CN) are isomers and prebiotic molecules that are involved in the formation of peptide structures and the nucleobase adenine, respectively. ALMA observations of the intermediate-mass Class 0 protostar Serpens SMM1-a and ALMA-PILS data of the low-mass Class 0 protostar IRAS~16293B are used. Spectra are analysed with the CASSIS line analysis software package in order to identify and characterise molecules. CH$_{3}$NCO, HOCH$_{2}$CN, and various other molecules are detected towards SMM1-a. HOCH$_{2}$CN is identified in the PILS data towards IRAS~16293B in a spectrum extracted at a half-beam offset position from the peak continuum. CH$_{3}$NCO and HOCH$_{2}$CN are equally abundant in SMM1-a at [X]/[CH$_{3}$OH] of 5.3$\times$10$^{-4}$ and 6.2$\times$10$^{-4}$, respectively. A comparison between SMM1-a and IRAS~16293B shows that HOCH$_{2}$CN and HNCO are more abundant in the former source, but CH$_{3}$NCO abundances do not differ significantly. Data from other sources are used to show that the [CH$_{3}$NCO]/[HNCO] ratio is similar in all these sources within $\sim$10\%. The new detections of CH$_{3}$NCO and HOCH$_{2}$CN are additional evidence for a large interstellar reservoir of prebiotic molecules that can contribute to the formation of biomolecules on terrestrial planets. A plausible formation pathway for HOCH$_{2}$CN is the thermal Strecker-like reaction of CN$^{-}$ with H$_{2}$CO. The similar [CH$_{3}$NCO]/[HNCO] ratios indicate that these two species either are chemically related or their formation is affected by physical conditions in the same way. The relatively high abundances of HOCH$_{2}$CN and HNCO in SMM1-a may be explained by a prolonged stage of relatively warm ice mantles, where thermal and energetic processing of HCN in the ice results in the efficient formation of both species.
description: Accepted for publication in Astronomy and Astrophysics. 32 pages, 26 figures
Comparison of melatonin and curcumin effect at the light and dark periods on regeneration of sciatic nerve crush injury in rats
Creators: name: Moharrami Kasmaie, Farshad
name: Jahromi, Zohreh
name: Gazor, Rouhollah
name: Zaminy, Arash
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2019
Subjects: melatonin
curcumin
nerve injury
anti-inflammatory
antioxidant
crush

description: Being one of the acute clinical problems, peripheral nerve injury can bring about a number of consequences including severe disability, reduced Quality of life (QOL) and immense costs. Currently, melatonin and curcumin are widely applied because of their immunomodulatory, anti-inflammatory, neuro-protective and antioxidant properties. The present study aims to compare the effects of melatonin and curcumin during light and dark periods on sciatic nerve crush injury repair. Accordingly, rats received IP injections of curcumin (100 mg/kg) and melatonin (10 mg/kg) over two periods of light (9:00 a.m.) and dark (9:00 p.m.) for 4 weeks. In order to evaluate rats, functional (walking track analysis and electrophysiological measurements), histomorphometric and gastrocnemius muscle mass investigations were administered. No statistically significant difference was identified between dark and light curcumin groups while curcumin groups displayed better results than did melatonin groups. In addition, dark melatonin group displayed better results than the light melatonin. On the whole, this study found that melatonin and curcumin can be used to quicken neural recovery and help treat nerve injury. It was also found that better neuroregeneration or nerve regeneration was induced when rats were treated by melatonin during the dark period while effects and injection time did not correlate in curcumin application.
description: EXCLI Journal; 18:Doc653; ISSN 1611-2156
Ethics between the Lines: Narratology and Literary Non-Fiction
Creators: name: Archbold, Jason
Publisher: name: KULT_online
Year: 2014

description: Towards A Critical Ethical Narratology is a post-structuralist and interdisciplinary work which makes use of advances in narratology and other areas of literary theory whilst observing the turn towards ethical criticism in literature. This approach is applied to the developing genre of literary non-fiction and the ethics implicit in narrating real-life events in recent memory as literature.
description: KULT_online, Nr. 37 (2014): KULT_online 37 (2014)
Two-parameter Quantum Groups of Exceptional Type E-Series and Convex PBW Type Basis
Creators: name: Bai, Xiaotang
name: Hu, Naihong
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary 17B37, 81R50; Secondary 16W30

description: The presentation of two-parameter quantum groups of type E-series in the sense of Benkart-Witherspoon [BW1] is given, which has a Drinfel'd quantum double structure. The universal $R$-matrix and a convex PBW-type basis are described for type E_6 (as a sample), and the conditions of those isomorphisms from these quantum groups into the one-parameter quantum doubles are discussed.
description: 20 pages, 1 figure. Algebra Colloquium (to appear)
Invented religions: this fiction is so good it should be true!
Creators: name: Tamm, Kaidi
Publisher: name: KULT_online
Year: 2014

description: Utilizing contemporary scholarhip on secularization, individualism, and consumer capitalism, Invented Religions: Imagination, Fiction and Faith by Carole Cusack analyses six new religions created from 1957 to 2005: Discordianism, The Church of All Worlds, The Church of the SubGenius, Jediism, Matrixism, and the Church of the Flying Spaghetti Monster. In many ways, it is an original and enjoyable work that sheds light on the richly imagined worlds of six invented religions that most people know little about. This interdiciplinary book introduces the concept of 'invented religions', questions religious legitimacy, and discusses religious creativity, its relations to humour and story-telling. Despite being culturally viable and popular, scholars investigating religious phenomena have long dismissed these groups as jokes, since they don't fit the well-established typologies. Cusack's empirical exploration of creative bricolage seeks to broaden the understanding of religion and argues for the right of invented religions to be taken seriously as significant (counter)cultural innovators formulating influential narratives about the nature of reality
description: KULT_online, Nr. 37 (2014): KULT_online 37 (2014)
Boundary Conditions in Topological AdS$_4$/CFT$_3$
Creators: name: Genolini, Pietro Benetti
name: Grinberg, Matan
name: Richmond, Paul
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the construction in four-dimensional gauged $Spin(4)$ supergravity of the holographic duals to topologically twisted three-dimensional $\mathcal{N}=4$ field theories. Our focus in this paper is to highlight some subtleties related to preserving supersymmetry in AdS/CFT, namely the inclusion of finite counterterms and the necessity of a Legendre transformation to find the dual to the field theory generating functional. Studying the geometry of these supergravity solutions, we conclude that the gravitational free energy is indeed independent from the metric of the boundary, and it vanishes for any smooth solution.
description: 37 pages
On the ambiguity of the past: Material culture analysis in the scientific frame of historical inquiries. Conference report on "Materielle Kulturforschung – eine Zwischenbilanz. Zum epistemischen Gewinn einer neuen Perspektive"
Creators: name: Krit, Alesya
Publisher: name: KULT_online
Year: 2014

description: KULT_online, Nr. 38 (2014): KULT_online 38 (2014)
Loops on the Celestial Sphere
Creators: name: Gonzalez, Hernan A.
name: Puhm, Andrea
name: Rojas, Francisco
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the effect of loop corrections to conformal correlators on the celestial sphere at null infinity. We first analyze finite one-loop celestial amplitudes in pure Yang-Mills theory and Einstein gravity. We then turn to our main focus: infrared divergent loop amplitudes in planar $\mathcal{N}=4$ super Yang-Mills theory. We compute the celestial one-loop amplitude in dimensional regularization and show that it can be recast as an operator acting on the celestial tree-level amplitude. This extends to any loop order and the re-summation of all planar loops enables us to write down an expression for the all-loop celestial amplitude. Finally, we show that the exponentiated all-loop expression given by the BDS formula gets promoted on the celestial sphere to an operator acting on the tree-level conformal correlation function, thus yielding, the celestial BDS formula.
description: 18 pages. Version 2: typos corrected, comments added
Conference report on "W(h)ither Identity – Positioning the Self and Transforming the Social". International Conference organized by the Research Area 6 'Cultural Identities' and the International Graduate Centre for the Study of Culture (GCSC) Giessen
Creators: name: Dolińska-Rydzek, Magda
name: Neufend, Maike
Publisher: name: KULT_online
Year: 2014

description: KULT_online, Nr. 38 (2014): KULT_online 38 (2014)
Randomised preconditioning for the forcing formulation of weak constraint 4D-Var
Creators: name: Daužickaitė, Ieva
name: Lawless, Amos S.
name: Scott, Jennifer A.
name: van Leeuwen, Peter Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: There is growing awareness that errors in the model equations cannot be ignored in data assimilation methods such as four-dimensional variational assimilation (4D-Var). If allowed for, more information can be extracted from observations, longer time windows are possible, and the minimisation process is easier, at least in principle. Weak constraint 4D-Var estimates the model error and minimises a series of linear least-squares cost functionsfunctions, which can be achieved using the conjugate gradient (CG) method; minimising each cost function is called an inner loop. CG needs preconditioning to improve its performance. In previous work, limited memory preconditioners (LMPs) have been constructed using approximations of the eigenvalues and eigenvectors of the Hessian in the previous inner loop. If the Hessian changes significantly in consecutive inner loops, the LMP may be of limited usefulness. To circumvent this, we propose using randomised methods for low rank eigenvalue decomposition and use these approximations to cheaply construct LMPs using information from the current inner loop. Three randomised methods are compared. Numerical experiments in idealized systems show that the resulting LMPs perform better than the existing LMPs. Using these methods may allow more efficient and robust implementations of incremental weak constraint 4D-Var.
Hauptmann, Peter, Stricker, Gerd: Die orthodoxe Kirche in Rußland - Dokumente ihrer Geschichte
Creators: name: Oswalt, Julia
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 38 Nr. 4 (1989): Ökumenische Rundschau, Band 38, Heft 4
Articulating curriculum re-visioning experiences within an (inter)national college's experiential studies program
Creators: name: Silvey, Joan Ellen
Publisher: name: University of British Columbia
Year: 2009

description: How shall we understand curriculum re-visioning in the Experiential Studies program? This study seeks to explore and constitute new understandings of curriculum revisioning in an (inter)national college setting where teachers work as a team, where change can occur in response to students and where the curriculum-as-live(d) and curriculum-as-plan are at play. Multifaceted questions and struggles emerge in the gaps between our experiences of planned curriculum and curriculum alive with student and teacher interactivity. The study attempts to actively engage in understanding (as a journeying into potentials) through retrieving, re-writing, constituting, re-creating and giving voice to curricular experiences, uncertainties, and possibilities. The text of the study listens to and rewrites the multiple voices of teachers' experiences and conversations emerging from interviews with five Experiential Studies teachers and from my journalized experiences as an Experiential Studies teacher. Adding to the teachers' voices are those of students in the form of short anonymous samples of students' writings and those of scholars as found in the literature. The aim and results of this inquiry are not situated in the production of patterns, answers or univocal meaning, but in the openings and spaces of possibilities and further questions. As the reader interacts with/in the text, re-searching into the myriad gaps and ambiguities becomes spaces of possibilities where new understandings and questions are constituted. Emerging from the multiple voices in these writings is a picture of Experiential Studies re-visioning as stammering, questioning, responsive, ongoing and interrelated conversations and activity. Grounded in and stirred by the interactive possibilities among teachers and students, uncertainty, questioning and dialogue generate everchanging curricular understandings and re-visions. "At the heart of teaching is an agony, not an essence" (Jardine, 1992, p. 190). The agony of pedagogy is a living through with others, with change, with uncertainty and with/in difference. Spaces of metonymic possibilities are present here and openings are created to allow movement in/to and between curricular signification and multiplicities.
Hard wall edge confinement in 2D topological insulators and the energy of the Dirac Point
Creators: name: Klipstein, P. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In 2D topological insulators (TIs) based on semiconductor quantum wells such as HgTe/CdTe or InAs/GaSb/AlSb, spin polarized edge states have been predicted with a massless Dirac like dispersion. In a hard wall treatment based on the 4 x 4 BHZ Hamiltonian and open boundary conditions (OBCs), the wave function is weakly confined near the edge, with which it makes no contact. In contrast, standard boundary conditions for the wave function and its derivative (SBCs) lead to strong confinement with a peak amplitude at the edge. Unfortunately, weak confinement exhibits unphysical behavior related to a spurious gap solution that is included in the OBC wave function. This is confirmed by the gap solutions of the parent multiband Hamiltonian from which the smaller Hamiltonian is derived, which exhibit physical behavior and do not satisfy OBCs. Unlike OBCs or other approaches based on phenomenological boundary conditions, SBCs treat the wall explicitly. Using a basis of empty crystal free electron states for the vacuum with the same symmetry as the TI states, it is shown that a large wall band gap overlapping that of the TI can only be achieved by including a thin passivation layer. For passivation materials such as silicon dioxide where the mid gap energy is nearly degenerate with that of the TI, the Dirac point is very close to mid gap and virtually independent of the TI band asymmetry. The treatment also demonstrates that a significant shift of the dispersion may be introduced by interface band mixing. The shift is largest at the Dirac point and decreases monotonically with edge state wave vector, vanishing when the edge states merge with the bulk band edges.
description: 18 pages, 14 figures, 4 tables
Thouless Energy Across Many-Body Localization Transition in Floquet Systems
Creators: name: Sonner, Michael
name: Serbyn, Maksym
name: Papić, Zlatko
name: Abanin, Dmitry A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The notion of Thouless energy plays a central role in the theory of Anderson localization. We investigate the scaling of Thouless energy across the many-body localization (MBL) transition in a Floquet model. We use a combination of methods that are reliable on the ergodic side of the transition (e.g., spectral form factor) and methods that work on the MBL side (e.g. typical matrix elements of local operators) to obtain a complete picture of the Thouless energy behavior across the transition. On the ergodic side, the Thouless energy tends to a value independent of system size, while at the transition it becomes comparable to the level spacing. Different probes yield consistent estimates of the Thouless energy in their overlapping regime of applicability, giving the location of the transition point nearly free of finite-size drift. This work establishes a connection between different definitions of Thouless energy in a many-body setting, and yields new insights into the MBL transition in Floquet systems.
description: 7 pages, 3 figures
Listening to the Citizens on the State of Social Rights in Europe
Creators: name: Burgoon, Brian
name: Busemeyer, Marius R.
name: Eick, Gianna M.
Publisher: name: Zenodo
Year: 2023
Subjects: Social Europe
welfare state
European social policy
public opinion
social policy implementation
unemployment insurance
parental leave
early childhood education and care (ECEC)
benefit take-up
citizen attitudes
European Union
survey data

description: This paper examines subjective measurements of social rights outcomes by listening to what the citizens in Europe have to say about social rights issues.  The listening entails investigating subjective opinions revealed in public-opinion data on Europe's welfare state and social rights. Our analytical objective is to investigate the roots of such views in social-rights power-resource measures. Our focus on such data is on attitudes towards subjective outcomes, such as views about the adequacy of social benefit take-up and attitudes about the quality of social benefits and the level of life for disadvantaged groups in a respondent's home nation. The main findings are that living in environments with more normative and instrumental resources, as well as patterns of significant actual take-up and welfare spending effort, can increase subjective judgements of social-rights outcomes - particularly among vulnerable groups who tend to be less positive in such judgements. Our findings, on the other hand, suggest that a lack of individual-level resources that assist in navigating the complicated welfare state bureaucracy might worsen inequality in terms of outcomes (or, at the very least, perceptions of these outcomes).
Target space entanglement in Matrix Models
Creators: name: Hampapura, Harsha R.
name: Harper, Jonathan
name: Lawrence, Albion
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study target space entanglement in gauged multi-matrix models as models of entanglement between groups of D-branes separated by a planar entangling surface, paying close attention to the implementation of gauge invariance. We open with a review of target space entanglement between identical particles, which shares some important features (specifically a gauged permutation symmetry) with our main problem. For our matrix models, we implement a gauge fixing well-adapted to the entangling surface. In this gauge, we map the matrix model problem to that of entanglement of a $U(1)$ gauge theory on a complete or all-to-all lattice. Matrix elements corresponding to open strings stretching across the entangling surface in the target space lead to interesting contributions to the entanglement entropy.
description: 34 pages, 3 figures
When are LIGO/Virgo's Big Black-Hole Mergers?
Creators: name: Fishbach, Maya
name: Doctor, Zoheyr
name: Callister, Thomas
name: Edelman, Bruce
name: Ye, Jiani
name: Essick, Reed
name: Farr, Will M.
name: Farr, Ben
name: Holz, Daniel E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the evolution of the binary black hole (BBH) mass distribution across cosmic time. The second gravitational-wave transient catalog (GWTC-2) from LIGO/Virgo contains BBH events out to redshifts $z \sim 1$, with component masses in the range $\sim5$--$80\,M_\odot$. In this catalog, the biggest black holes, with $m_1 \gtrsim 45\,M_\odot$, are only found at the highest redshifts, $z \gtrsim 0.4$. We ask whether the absence of high-mass BBH observations at low redshift indicates that the astrophysical BBH mass distribution evolves: the biggest BBHs only merge at high redshift, and cease merging at low redshift. Alternatively, this feature might be explained by gravitational-wave selection effects. Modeling the BBH primary mass spectrum as a power law with a sharp maximum mass cutoff (Truncated model), we find that the cutoff increases with redshift ($> 99.9\%$ credibility). An abrupt cutoff in the mass spectrum is expected from (pulsational) pair instability supernova simulations; however, GWTC-2 is only consistent with a Truncated mass model if the location of the cutoff increases from $45^{+13}_{-5}\,M_\odot$ at $z < 0.4$ to $80^{+16}_{-13}\,M_\odot$ at $z > 0.4$. Alternatively, if the primary mass spectrum has a break in the power law (Broken power law) at ${38^{+15}_{-8}\,M_\odot}$, rather than a sharp cutoff, the data are consistent with a non-evolving mass distribution. In this case, the overall rate of mergers, at all masses, increases with increasing redshift. Future observations will confidently distinguish between a sharp maximum mass cutoff that evolves with redshift and a non-evolving mass distribution with a gradual taper, such as a Broken power law. After $\sim 100$ BBH merger observations, a continued absence of high-mass, low-redshift events would provide a clear signature that the mass distribution evolves with redshift.
description: 16 pages, 11 figures. Minor updates to match published version
Novel feature of doubly bubble nuclei in 50$\leq$Z(N)$\leq$82 region along with magicity and weakly bound structure
Creators: name: Kumawat, M.
name: Saxena, G.
name: Kaushik, M.
name: Jain, S. K.
name: Deegwal, J. K.
name: Aggarwal, Mamta
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work, we identify a unique and novel feature of central density depletion in both proton and neutron named as doubly bubble nuclei in 50$\leq$Z(N)$\leq$82 region. The major role of 2d-3s single-particle (s.p.) states in the existence of halo and bubble nuclei is probed. The occupancy in s.p. state 3s$_{1/2}$ leads to the extended neutron density distribution or halo while the unoccupancy results in the central density depletion. By employing the Relativistic Mean-Field (RMF) approach along with NL3* parameter, the separation energies, single-particle energies, pairing energies, proton, and neutron density profiles along with deformations of even-even nuclei are investigated. Our results are in concise with few other theories and available experimental data. Emergence on new shell closure and the magicity of conventional shell closures are explored systematically in this yet unknown region.
description: 13 figures, 18 pages
Structural Segmentation and Labelling of Tabla Solo Performances
Creators: name: Gowriprasad, R.
name: Aravind, R.
name: Murthy, Hema A.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Plant Biology

description: Tabla is a North Indian percussion instrument that serves as both an accompaniment and a captivating solo instrument. Tabla solo is intricate and elaborate, exhibiting rhythmic evolution through a sequence of homogeneous sections marked by shared rhythmic characteristics. Each section has a specific structure and name associated with it. Tabla learning and performance in the Indian subcontinent is based on stylistic schools called gharānās. Several compositions by various composers from different gharānās are played in each section. This paper addresses the task of segmenting the tabla solo concert into musically meaningful sections. We then assign suitable section labels and recognise gharānās from the sections. We have curated a diverse collection of more than 38 hours of solo tabla recordings for the task. We motivate the problem and present different challenges and facets of the tasks. Inspired by the distinct musical properties of tabla solo, we compute several rhythmic and timbral features for the segmentation task. This work explores the approach of automatically locating the significant changes in the rhythmic structure by analysing local self-similarity in an unsupervised manner. We also explore the supervised random forest and a convolutional neural network trained on hand-crafted features. Both supervised and unsupervised approaches are also tested on a set of held-out recordings. Segmentation of an audio piece into its structural components and labelling is crucial to many music information retrieval applications like repetitive structure finding, audio summarisation, and fast music navigation. This work enables a comprehensive musical understanding and description of tabla solo concerts.
Proceedings 9th International Workshop on Theorem Proving Components for Educational Software
Creators: name: Quaresma, Pedro
name: Neuper, Walther
name: Marcos, João
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The 9th International Workshop on Theorem-Proving Components for Educational Software (ThEdu'20) was scheduled to happen on June 29 as a satellite of the IJCAR-FSCD 2020 joint meeting, in Paris. The COVID-19 pandemic came by surprise, though, and the main conference was virtualised. Fearing that an online meeting would not allow our community to fully reproduce the usual face-to-face networking opportunities of the ThEdu initiative, the Steering Committee of ThEdu decided to cancel our workshop. Given that many of us had already planned and worked for that moment, we decided that ThEdu'20 could still live in the form of an EPTCS volume. The EPTCS concurred with us, recognising this very singular situation, and accepted our proposal of organising a special issue with papers submitted to ThEdu'20. An open call for papers was then issued, and attracted five submissions, all of which have been accepted by our reviewers, who produced three careful reports on each of the contributions. The resulting revised papers are collected in the present volume. We, the volume editors, hope that this collection of papers will help further promoting the development of theorem-proving-based software, and that it will collaborate to improve the mutual understanding between computer mathematicians and stakeholders in education. With some luck, we would actually expect that the very special circumstances set up by the worst sanitary crisis in a century will happen to reinforce the need for the application of certified components and of verification methods for the production of educational software that would be available even when the traditional on-site learning experiences turn out not to be recommendable.
Hole-Doped Room-Temperature Superconductivity in H$_{3}$S$_{1-x}$Z$_x$ (Z=C, Si)
Creators: name: Ge, Yanfeng
name: Zhang, Fan
name: Dias, Ranga P.
name: Hemley, Russell J.
name: Yao, Yugui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We examine the effects of the low-level substitution of S atoms by C and Si atoms on the superconductivity of H$_3$S with the $Im\bar{3}m$ structure at megabar pressure. The hole doping can fine-tune the Fermi energy to reach the electronic density-of-states peak maximizing the electron-phonon coupling. This can boost the critical temperature from the original 203 K to 289 K and 283 K, respectively, for H$_3$S$_{0.962}$C$_{0.038}$ at 260 GPa and H$_3$S$_{0.960}$Si$_{0.040}$ at 230 GPa. The former may provide an explanation for the recent experimental observation of room-temperature superconductivity in a highly compressed C-S-H system [Nature 586, 373-377 (2020)]. Our work opens a new avenue for substantially raising the critical temperatures of hydrogen-rich materials.
description: 5 pages, 2 figures
A Study of Combustion in Supersonic Streams
Creators: name: Billig, Frederick Stucky
Publisher: name: Digital Repository at the University of Maryland
Year: 1964

description: Supersonic combustion of reactive aluminum alkyl fuels has been experimentally demonstrated in two-dimensional ducted combustors and adjacent to a flat plate. Fuel was injected from the combustor walls through multiple orifices and ignited spontaneously. Stable supersonic heat release was maintained as evidenced by schlieren and direct motion pictures of the flow field and deduced from static and pitot pressure measurements in the combustion zone. The results of the ducted combustor tests were correlated with elementary one-dimensional and pseudo-one-dimensional theoretical models of the flow field. This agreement permitted a reason.able determination of combustion efficiency to be made. In the ducted combustor tests a favorable effect of preheating the fuel to approximately 250°F was noted and a simple empirical factor was found which satisfactorily correlated all of the data for the range of conditions tested. A theoretical model of constant pressure heat release on a flat plate in supersonic flow is postulated. Normal force coefficients and specific impulse values are tabulated for a variety of flight Mach numbers and altitudes. Additional refinements in this theoretical model were required to adequately describe the experimental results. In a test simulating Mach 5 flight at 66,000 feet altitude a side force specific impulse of 1350 seconds was measured at equivalence ratio of one. Combustion was only partially completed 12 inches downstream of fuel injection. Based on the theoretical mode l an additional 12 inches of combustor length and 36 inches of expansion length would be required to obtain the estimated theoretical impulse of 5760 sec. The interaction of a vaporizing liquid droplet with a supersonic stream is considered. Additional refinements were made in the existing theories on droplet trajectory to include the influences of a separated zone and the normal component of velocity of the external stream. Calculations of the trajectory and evaporation of the estimated mean droplet size based on the modified technique were in general agreement with the observed flame zone and deduced combustion efficiency.
Long Range Interactions in Cosmology: Implications for Neutrinos
Creators: name: Esteban, Ivan
name: Salvado, Jordi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Cosmology is well suited to study the effects of long range interactions due to the large densities in the early Universe. In this article, we explore how the energy density and equation of state of a fermion system diverge from the commonly assumed ideal gas form under the presence of scalar long range interactions with a range much smaller than cosmological scales. In this scenario, "small"-scale physics can impact our largest-scale observations. As a benchmark, we apply the formalism to self-interacting neutrinos, performing an analysis to present and future cosmological data. Our results show that the current cosmological neutrino mass bound is fully avoided in the presence of a long range interaction, opening the possibility for a laboratory neutrino mass detection in the near future. We also demonstrate an interesting complementarity between neutrino laboratory experiments and the future EUCLID survey.
description: 23 pages, 11 figures + appendices. Code publicly available at https://github.com/jsalvado/class_public_lrs. Extended discussion on LSS, matches version accepted by JCAP
Hydrodynamic Modes in a Trapped Strongly Interacting Fermi Gases of Atoms
Creators: name: Kim, Yeong E.
name: Zubarev, Alexander L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The zero-temperature properties of a dilute two-component Fermi gas in the BCS-BEC crossover are investigated. On the basis of a generalization of the variational Schwinger method, we construct approximate semi-analytical formulae for collective frequencies of the radial and the axial breathing modes of the Fermi gas under harmonic confinement in the framework of the hydrodynamic theory. It is shown that the method gives nearly exact solutions.
description: 11 pages
The Significance of Cytological Characteristics as Revealed by Protargol Silver Staining in Evaluating the Systematics of the Ciliate Suborder Tintinnina
Creators: name: Brownlee, David Carl
Publisher: name: Digital Repository at the University of Maryland
Year: 1977

description: The present systematics of the tintinnid ciliates is based on the shape, size, and composition of the lorica as established by Kofoid and Campbell. Construction of a classification based on a restricted set of characteristics, such as those pertaining only to the lorica in the tintinnid ciliates, may lead to an artificial or unnatural scheme. This lorica based classification also prohibits phylogenetic comparisons of the tintinnids to other ciliate groups whose taxonomy is based on cytological characteristics. In an attempt to demonstrate the value and necessity of employing cytological characteristics in constructing the taxonomy of the tintinnid ciliates, the cytology of representative species was examined using the protargol silver-impregnation technique. Specimens were collected from a wide range of environments, including marine, brackish, and fresh water habitats which ranged from tropical to temperate latitudes. Eleven species comprising ten genera and representing seven families were chosen to represent the suborder in this preliminary analysis. The examination of the stained species provided the first precise description of somatic ciliation patterns, a more complete understanding of the buccal organization, and insight into the biological processes of these ciliates. Using these observations,comparisons are made to other ciliate groups and a preliminary analysis of evolutionary trends in the tintinnid ciliates is supported. It is suggested that a revision of the placement of certain genera within the families of tintinnids is necessary and that such changes should be based on both cytology and morphology of the lorica.
On the concept of Raga parentage in Carnatic music
Creators: name: Kuriakose, Jom
name: Suresh, Veena
name: Dutta, Shrey
name: Murthy, Hema A.
name: Murthy, M. V. N.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: The concept of rāga in Carnatic music is based on an ordered set of notes in an octave. Historically rāgas are broadly classified into two sets, namely Janaka (root/parent) and Janya (derived/offspring) rāgas. Every janya rāga is derived from a unique parent. We examine this classification critically and attempt to provide a quantitative basis for such a classification by defining a ‘distance’ between rāgas. The shortest identifies the parentage. Each rāga is defined by a pitch histogram vector in a 12-dimensional space. To achieve consensus, different distance metrics are used in the multi-dimensional space. Using a standard data set (refer to section 4.4), we carry out the distance analysis using entire compositions, which we subsequently fine-tune using only the parts of compositions that contain all the features of the rāga. We also perform an independent analysis for comparing the motif sequences in rāgas. We find that while the conventional method (refer to section 3) is fairly robust, there are exceptions, especially with pentatonic rāgas, and that these exceptions are actively debated in the public domain. Since quantitative methods find it difficult to achieve consensus, we conclude that while a rāga belongs to a family, it does not necessarily belong to a unique parent.
Eppur è piatto? The cosmic chronometer take on spatial curvature and cosmic concordance
Creators: name: Vagnozzi, Sunny
name: Loeb, Abraham
name: Moresco, Michele
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The question of whether Cosmic Microwave Background (CMB) temperature and polarization data from Planck favor a spatially closed Universe with curvature parameter $Ω_K<0$ has been the subject of recent intense discussions. Attempts to break the geometrical degeneracy combining Planck data with external datasets such as Baryon Acoustic Oscillation (BAO) measurements all point towards a spatially flat Universe, at the cost of significant tensions with Planck, which make the resulting dataset combination problematic. Settling this issue requires identifying a dataset which can break the geometrical degeneracy while not incurring in these tensions. We argue that cosmic chronometers (CC), measurements of the expansion rate $H(z)$ from the relative ages of massive early-type passively evolving galaxies, are the dataset we are after. Furthermore, CC come with the additional advantage of being virtually free of cosmological model assumptions. Combining Planck 2018 CMB temperature and polarization data with the latest CC measurements, we break the geometrical degeneracy and find $Ω_K=-0.0054 \pm 0.0055$, consistent with a spatially flat Universe and competitive with the Planck+BAO constraint. Our results are stable against minimal parameter space extensions and CC systematics, and we find no substantial tension between Planck and CC data within a non-flat Universe, making the resulting combination reliable. Our results allow us to assert with confidence that the Universe is spatially flat to the ${\cal O}(10^{-2})$ level, a finding which might possibly settle the ongoing spatial curvature debate, and lends even more support to the already very successful inflationary paradigm.
description: 30 pages, 6 figures. The busy reader should skip to Fig. 1 and Tab. 3 for the main results, and to Fig. 5 and Tab. 4 if they are interested in the extended parameter space results. "Piatto" = "flat" in Italian, "Note added" between conclusions and acknowledgements explains our choice of title. v2: abstract shortened, references added, version accepted for publication in ApJ. Comments are welcome
Charge Pumping in Carbon Nanotubes
Creators: name: Leek, Peter
name: Buitelaar, Mark
name: Talyanskii, Valery
name: Smith, Charles
name: Anderson, David
name: Jones, Geb
name: Wei, Jiang
name: Cobden, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate charge pumping in semiconducting carbon nanotubes by a traveling potential wave. From the observation of pumping in the nanotube insulating state we deduce that transport occurs by packets of charge being carried along by the wave. By tuning the potential of a side gate, transport of either electron or hole packets can be realized. Prospects for the realization of nanotube based single-electron pumps are discussed.
Three Order Parameters in Quantum XZ Spin-Oscillator Models with Gibbsian Ground States
Creators: name: Dorlas, Teunis C.
name: Skrypnik, Wolodymyr I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Quantum models on the hyper-cubic d-dimensional lattice of spin-1/2 particles interacting with linear oscillators are shown to have three ferromagnetic ground state order parameters. Two order parameters coincide with the magnetization in the first and third directions and the third one is a magnetization in a continuous oscillator variable. The proofs use a generalized Peierls argument and two Griffiths inequalities. The class of spin-oscillator Hamiltonians considered manifest maximal ordering in their ground states. The models have relevance for hydrogen-bond ferroelectrics. The simplest of these is proven to have a unique Gibbsian ground state.
description: This is a contribution to the Proc. of the Seventh International Conference ''Symmetry in Nonlinear Mathematical Physics'', published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/ v2: sections 1 and 2 have been rewritten, the main result and the proof have not been changed
เทคโนโลยีสารสนเทศเพื่อการบริหารโซ่อุปทานเพื่อการผลิตบัณฑิตในสถาบันอุดมศึกษา
Creators: name: อรรถพล จันทร์สมุด
Publisher: name: มหาวิทยาลัยแม่โจ้
Year: 2019
Subjects: เทคโนโลยีสารสนเทศ
การบริหารโซ่อุปทาน
การผลิตบัณฑิตในสถาบันอุดมศึกษา

description: วารสารแม่โจ้เทคโนโลยีสารสนเทศและนวัตกรรม, 5, 1, 15 ถึง 26
Tholoarctus oleseni Jorgensen, Boesgaard, Mobjerg, & Kristensen 2014
Creators: name: Trokhymchuk, Roman
name: Schmidt-Rhaesa, Andreas
name: Utevsky, Serge
name: Kristensen, Reinhardt Møbjerg
name: Kieneke, Alexander
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Tardigrada
Heterotardigrada
Arthrotardigrada
Halechiniscidae
Tholoarctus
Tholoarctus oleseni

description: Tholoarctus oleseni Jørgensen, Boesgaard, Møbjerg, & Kristensen, 2014
N= 8 specimens: 1 female, 4 males, 3 with undetermined sex occurrence: ANDEEP I, ANDEEP-SYSTCO; 1,927–2,997 m bsl.
Fig. 11; Supplementary Table 1.12
Short description
Tardigrades with slender body and bell-shaped outer epicuticle (Fig. 11A, C). Short primary clavae and large secondary clavae present (Fig. 11A). Sexual dimorphism concerning body size (female is 336 µm long and 79 µm wide, n=1; males are 165–173 µm long and 40 µm wide, n=3) (Fig. 11A compared with Fig. 11C). Sensory organs on each leg present (Fig. 11B, D).
Remarks
Tardigrades with clear sexual dimorphism in size (mature females are twice as big as males). Short spine-like sensory organ present also on the legs II and III. Outer epicuticle with various levels of inflation so we measured length and width by inner cuticle borders, which corresponded to the original description by Jørgensen et al. (2014).
description: Published as part of Trokhymchuk, Roman, Schmidt-Rhaesa, Andreas, Utevsky, Serge, Kristensen, Reinhardt Møbjerg & Kieneke, Alexander, 2024, Towards a better understanding of deep-sea tardigrade biogeography: numerous new records from the Southern Ocean, pp. 1-39 in Zootaxa 5543 (1) on page 23, DOI: 10.11646/zootaxa.5543.1.1, http://zenodo.org/record/14385085
Superheavy scalar dark matter from gravitational particle production in $α$-attractor models of inflation
Creators: name: Ling, Siyang
name: Long, Andrew J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the phenomenon of gravitational particle production as applied to a scalar spectator field in the context of $α$-attractor inflation. Assuming that the scalar has a minimal coupling to gravity, we calculate the abundance of gravitationally-produced particles as a function of the spectator's mass $m_χ$ and the inflaton's $α$ parameter. If the spectator is stable and sufficiently weakly coupled, such that it does not thermalize after reheating, then a population of spin-0 particles is predicted to survive in the universe today, providing a candidate for dark matter. Inhomogeneities in the spatial distribution of dark matter correspond to an isocurvature component, which can be probed by measurements of the cosmic microwave background anisotropies. We calculate the dark matter-photon isocurvature power spectrum and by comparing with upper limits from Planck, we infer constraints on $m_χ$ and $α$. If the scalar spectator makes up all of the dark matter today, then for $α= 10$ and $T_\text{RH} = 10^4 \ \mathrm{GeV}$ we obtain $m_χ> 1.8 \times 10^{13} \ \mathrm{GeV} \approx 1.2 \, m_ϕ$, where $m_ϕ$ is the inflaton's mass.
description: 21 pages + references, 8 figures; added references, matches PRD
A Possible Formation Scenario for the Ultra-Massive Cluster W3 in NGC 7252
Creators: name: Fellhauer, M.
name: Kroupa, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The intermediate age star cluster W3 (age ~ 300-500 Myr) in NGC 7252 is the most luminous star cluster known to date with a dynamical mass estimate of 8 +/- 2 x 10^7 M_sun. With an effective radius of about 17.5 pc and a velocity dispersion of 45 km/s this object may be viewed as one of the recently discovered ultra-compact dwarf galaxies (UCDs). Its intermediate age, however, precludes an origin as a stripped nucleated dwarf elliptical galaxy. The galaxy NGC 7252 is a merger remnant from two gas-rich disc galaxies. Interactions between two gas-rich galaxies lead to bursts of intense star formation. The age of the interaction and the age of W3 are in good agreement, suggesting that was W3 probably formed in the starburst. We propose a formation scenario for W3. Observations of interacting galaxies reveal regions of strong star formation forming dozens up to hundreds of star cluster in confined regions of up to several hundred parsec in diameter. The total mass of new stars in these regions can reach 10^7 or even 10^8 M_sun. By means of numerical simulations we have shown that the star clusters in these regions merge on short time-scales of a few Myr up to a few hundred Myr. We apply this scenario to W3 and predict properties which could be observable and the future evolution of this object. This work lends credence to the notion that at least some of the UCDs may be evolved star cluster complexes formed during early hierarchical mergers.
description: 5 pages, 4 figures, accepted by MNRAS