cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The intrinsic pathology of self-interacting vector fields
Creators: name: Coates, Andrew
name: Ramazanoğlu, Fethi M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that self-interacting vector field theories exhibit unphysical behaviour even when they are not coupled to any external field. This means any theory featuring such vectors is in danger of being unphysical, an alarming prospect for many proposals in cosmology, gravity, high energy physics and beyond. The problem arises when vector fields with healthy configurations naturally reach a point where time evolution is mathematically ill-defined. We develop tools to easily identify this issue, and provide a simple and unifying framework to investigate it.
description: 5+4 pages, 3+2 figures. Minor changes to bring into line with published version
Synthesis and antimicrobial activity of novel analogues of antimycin A3 (18-membered Macrocyclic Tetralactone and its derivatives)
Creators: name: Suprapto, Akmal Primadian
name: Syahputro, Muhammad Agung Bhagaskoro Hardiyan
name: Arsianti, Ade
name: Tjampakasari, Conny Riana
Publisher: name: F1000 Research Limited
Year: 2018

description: Background: Antimicrobial resistance is a major problem to cause treatment failure in patient with infectious disease. This fact suggesting the search for a new and more effective antimicrobial agents are important. Antimycin A3, is a secondary metabolic compound produced by Streptomyces sp. which demonstrated a strong antifungal activity. The impressive antifungal activity of Antimycin A3, prompted us to conduct the synthesis of its novel analogues, as well as examine its antimicrobial activities.

Method: The analogue synthesis was designed by expanding the nine-membered dilactone ring of Antimycin A3 with 18-membered macrocyclic tetralactone ring in the analogues. Synthesis of the analogues were commenced from commercially available Boc-L-Threonine by esterification, one-pot homocoupling ring-closing metathesis, amidation, and sharpless asymmetric dihydroxylation. Antimicrobial activity of the analogues were evaluated as a growth inhibitor of Escherichia coli, Staphylococcus aureus and Candida albicans by using macrodilution MIC and MBC assay.

Result: Four novel analogues of Antimycin A3 have been synthesized from Boc-L-Threonine through a series of chemical reactions. Two polyhydroxylated 18-membered tetralactone analogues exhibited antimicrobial activity against S. aureus with MIC value 16 μg/mL and 64 μg/mL; MBC value 128 μg/mL and 256 μg/mL. Antimycin A3, as compound precursor have MIC value ≥256 μg/mL against S. aureus. All the analogues and Antimycin A3 showed no antimicrobial activity against E. coli and C. albicans, with MIC value ≥256 μg/mL.

Conclusion: We have been successfully synthesized novel 18-membered macrocyclic tetralactone analogues of Antimycin A3. Two analogues which have polyhydroxylated 18-membered tetralactone core, showed a greater antimicrobial activity against S. aureus than the Antimycin A3. In conclusion, these analogues could be considered and developed as a new antimicrobial agent that selectively inhibits the growth of S. aureus.
Clinical psychologists’ experiences of supporting people with aphasia as part of a multidisciplinary team
Creators: name: Keleher, Julia
Publisher: name: University of East London
Year: 2023
Subjects: aphasia
aphasic
emotion
emotional outcome
emotional support
mental health
therapy
clinical psychologist
clinical psychology

description: Background: Aphasia is a communication disability resulting from acquired brain injury and affects more than 350,000 people in the UK (Stroke Association, n.d.). People with aphasia experience numerous emotional and psychosocial challenges associated with loss of language. Psychological support for people with aphasia in the UK tends to be provided by clinical psychologists or clinical neuropsychologists working in NHS services as part of a multidisciplinary team (MDT). However, there is no research to date exploring how they experience supporting people with aphasia. Aims: This research aims to explore how clinical psychologists make sense of and address the emotional outcomes associated with aphasia, and how they experience working as part of an MDT when supporting people with aphasia, including what roles they take and what they find useful when doing this work. Methods: This is a qualitative study employing the use of individual, semi-structured interviews with seven clinical psychologists who have experience of supporting people with aphasia as part of their work in an NHS MDT context. Data was analysed using reflexive Thematic Analysis (TA). Results: Four main themes and seven subthemes were constructed through the analysis. The main themes were: 1) Working with Distress; 2) The MDT as a Resource; 3) Challenging Assumptions – Defending Capacity and Championing Psychological Support; and 4) Moving Beyond Language – (Re)Connecting with What’s Important. Conclusions/Implications: Clinical psychologists employ an individualised approach to making sense of and working with emotional responses to aphasia, including working sensitively with frustration. They discussed supporting colleagues to understand and address psychological aspects of aphasia and viewed interdisciplinary working as important, with a particular emphasis on joint working with SLT colleagues. The findings provide unique insights into how clinical psychologists work with people with aphasia and have implications relating to the development of training resources
Neurofeminism: feminist critiques of research on sex/gender differences in the neurosciences
Creators: name: Friedrichs, Kassandra
name: Kellmeyer, Philipp
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Over the last three decades, the human brain, and its role in determining behavior have been receiving a growing amount of attention in academia as well as in society more generally. Neuroscientific explanations of human behavior or other phenomena are often especially appealing to lay people. Therefore, neuroscientific explanations that can affect individuals, groups, or social relations in general should be formulated in a careful and responsible way. One field in which especially feminist scholars request more caution is the neuroscientific examination of sex or gender differences. Feminist scholars have described various ways in which sexist bias might be present in neuroscientific research on sex or gender differences. In this context, they coined the term "neurosexism" to describe the entanglement between neuroscientific work and sexist ideology, and "neurofeminism" as a response to that. Here, we aim to give an overview over the contemporary neurofeminist literature. In the first part, common levels of analysis in the neurofeminist literature are presented and the research level is explored in more detail. In the second part, some common developments in more recent neurofeminist scholarship are discussed. For this, we review recent publications with the aim to provide neuroscientists with a solid understanding of neurofeminist criticism so that they may evaluate neuroscientific claims about on sex or gender differences from this critical perspective.
The FRUITY database on AGB stars: past, present and future
Creators: name: Cristallo, S.
name: Piersanti, L.
name: Straniero, O.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present and show the features of the FRUITY database, an interactive web-based interface devoted to the nucleosynthesis in AGB stars. We describe the current available set of AGB models (largely expanded with respect to the original one) with masses in the range 1.3<=M/M_SUN<=3.0 and metallicities -2.15<=[Fe/H]<=+0.15. We illustrate the details of our s-process surface distributions and we compare our results to observations. Moreover, we introduce a new set of models where the effects of rotation are taken into account. Finally, we shortly describe next planned upgrades.
description: Proceedings of the "nuclear physics in astrophysics VI" meeting held in Lisbon (2013)
Decoherence of trapped bosons by buffer gas scattering: What length scales matter?
Creators: name: Gilz, Lukas
name: Rico-Pérez, Luis
name: Anglin, James R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We ask and answer a basic question about the length scales involved in quantum decoherence: how far apart in space do two parts of a quantum system have to be, before a common quantum environment decoheres them as if they were entirely separate? We frame this question specifically in a cold atom context. How far apart do two populations of bosons have to be, before an environment of thermal atoms of a different species (`buffer gas') responds to their two particle numbers separately? An initial guess for this length scale is the thermal coherence length of the buffer gas; we show that a standard Born-Markov treatment partially supports this guess, but predicts only inverse-square saturation of decoherence rates with distance, and not the much more abrupt Gaussian behavior of the buffer gas's first-order coherence. We confirm this Born-Markov result with a more rigorous theory, based on an exact solution of a two-scatterer scattering problem, which also extends the result beyond weak scattering. Finally, however, we show that when interactions within the buffer gas reservoir are taken into account, an abrupt saturation of the decoherence rate does occur, exponentially on the length scale of the buffer gas's mean free path.
MPEC 2023-E41 : DAILY ORBIT UPDATE (2023 March 5)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Helicity-tunable spin Hall and spin Nernst effects in unconventional chiral fermion semimetals XY (X=Co, Rh; Y=Si, Ge)
Creators: name: Hsieh, Ting-Yun
name: Prasad, Babu Baijnath
name: Guo, Guang-Yu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Transition metal monosilicides CoSi, CoGe, RhSi and RhGe in the chiral cubic B20 structure have recently been found to host unconventional chiral fermions beyond spin-1/2 WFs, and also exhibit exotic physical phenomena such as long Fermi arc surface states, GME and quantized CPGE. Thus, exploring novel spin-related transports in these unconventional chiral fermion semimetals may open a new door for spintronics and spin caloritronics. In this paper, we study the intrinsic SHE and SNE in the CoSi family based on ab initio relativistic band structure calculations. First, we find that unlike nonchiral cubic metals, the CoSi family have two independent nonzero SHC (SNC) tensor elements, namely, $σ_{xy}^z$ and $σ_{xz}^y$ ($α_{xy}^z$ and $α_{xz}^y$) instead of one element. Furthermore, the SHC ($σ_{xy}^z$ and $σ_{xz}^y$) and helicity of the chiral structure are found to be correlated, thus enabling SHE detection of structural helicity and also chiral fermion chirality. Second, the intrinsic SHE and SNE in some of the CoSi family are large. In particular, the calculated SHC of RhGe is as large as -140 ($\hbar$/e)(S/cm). The calculated SNC of CoGe is also large, being -1.3 ($\hbar$/e)(A/m K) at room temperature. Due to their semimetallic nature with low electrical conductivity, these topological semimetals may have large spin Hall and spin Nernst angles, being comparable to that of Pt metal. The SHC and SNC of these compounds can also be increased by raising or lowering $μ$ to, e.g., the topological nodes, via either chemical doping or electrical gating. Our findings thus indicate that the CoSi family not only would provide a material platform for exploring novel spin-transports and exotic phenomena in unconventional chiral fermion semimetals but also could be promising materials for developing better spintronic and spin caloritronic devices.
2MASS wide field extinction maps: V. Corona Australis
Creators: name: Alves, João
name: Lombardi, Marco
name: Lada, Charles
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a near-infrared extinction map of a large region ($\sim$870 deg$^2$) covering the isolated Corona Australis complex of molecular clouds. We reach a 1-$σ$ error of 0.02 mag in the K-band extinction with a resolution of 3 arcmin over the entire map. We find that the Corona Australis cloud is about three times as large as revealed by previous CO and dust emission surveys. The cloud consists of a 45 pc long complex of filamentary structure from the well known star forming Western-end (the head, $N \geq10^{23}$ cm$^{-2}$) to the diffuse Eastern-end the tail, ($N \leq10^{21}$ cm$^{-2}$). Remarkably, about two thirds of the complex both in size and mass lie beneath A$_V\sim1$ mag. We find that the PDF of the cloud cannot be described by a single log-normal function. Similar to prior studies, we found a significant excess at high column densities, but a log-normal + power-law tail fit does not work well at low column densities. We show that at low column densities near the peak of the observed PDF, both the amplitude and shape of the PDF are dominated by noise in the extinction measurements making it impractical to derive the intrinsic cloud PDF below A$_K
description: A&A accepted. Comments/suggestions welcome
On the possible correlation of Galactic VHE source locations and enhancements of the surface density in the Galactic plane
Creators: name: Pedaletti, G.
name: Wilhelmi, E. de Oña
name: Torres, D. F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The association of very-high energy sources with regions of the sky rich in dust and gas has been noticed in the study of individual VHE sources. However, the statistical significance of such correlation for the whole population of TeV detections has not been assessed yet. Here we present a study of the association of VHE sources in the central Galactic region with positions of enhanced material content. We obtain estimates of the material content through two classical tracers: dust emission and intensity of the $^\textrm{12}$CO(1$\rightarrow$0) line. We make use of the recently released all-sky maps of astrophysical foregrounds of the Planck Collaboration and of the extensive existing CO mapping of the Galactic sky. In order to test the correlation, we construct randomized samples of VHE source positions starting from the inner Galactic plane survey sources detected by the H.E.S.S. array. We find hints of a positive correlation between positions of VHE sources and regions rich in molecular material, which in the best of cases reaches the 3.9sigma level. The latter confidence is however decreased if variations in the selection criteria are considered, what lead us to conclude that a positive correlation cannot be firmly established yet. Forthcoming VHE facilities will be needed in order to firmly establish the correlation.
description: 6 pages, 5 figures, 1 table. Accepted for publication in A&A
Optical depth to reionization from perturbative 21cm clustering
Creators: name: Sailer, Noah
name: Chen, Shi-Fan
name: White, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The optical depth $τ$ is the least well determined parameter in the standard model of cosmology, and one whose precise value is important for both understanding reionization and for inferring fundamental physics from cosmological measurements. We forecast how well future epoch of reionization experiments could constraint $τ$ using a symmetries-based bias expansion that highlights the special role played by anisotropies in the power spectrum on large scales. Given a parametric model for the ionization evolution inspired by the physical behavior of more detailed reionization simulations, we find that future 21cm experiments could place tight constraints on the timing and duration of reionization and hence constraints on $τ$ that are competitive with proposed, space-based CMB missions provided they can measure $k\approx 0.1\,h\,\text{Mpc}^{-1}$ with a clean foreground wedge across redshifts spanning the most active periods of reionization, corresponding to ionization fractions $0.2 \lesssim x \lesssim 0.8$. Significantly improving upon existing CMB-based measurements with next-generation 21cm surveys would require substantially longer observations ($\sim5$ years) than standard $\mathcal{O}(1000 \,\,\text{hour})$ integration times. Precise measurements of smaller scales will not improve constraints on $τ$ until a better understanding of the astrophysics of reionization is achieved. In the presence of noise and foregrounds even future 21cm experiments will struggle to constrain $τ$ if the ionization evolution deviates significantly from simple parametric forms.
description: published in JCAP
On Termination, Confluence and Consistent CHR-based Type Inference
Creators: name: Duck, Gregory J.
name: Haemmerle, Remy
name: Sulzmann, Martin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We consider the application of Constraint Handling Rules (CHR) for the specification of type inference systems, such as that used by Haskell. Confluence of CHR guarantees that the answer provided by type inference is correct and consistent. The standard method for establishing confluence relies on an assumption that the CHR program is terminating. However, many examples in practice give rise to non-terminating CHR programs, rendering this method inapplicable. Despite no guarantee of termination or confluence, the Glasgow Haskell Compiler (GHC) supports options that allow the user to proceed with type inference anyway, e.g. via the use of the UndecidableInstances flag. In this paper we formally identify and verify a set of relaxed criteria, namely range-restrictedness, local confluence, and ground termination, that ensure the consistency of CHR-based type inference that maps to potentially non-terminating CHR programs.
A funcionalidade do lúdico na educação inclusiva
Creators: name: Silva, Cátia Cristiane Barros e
name: Alves, Francisca Ivoneide Benicio Malaquias
Publisher: name: Id on Line Rev. Mult. Psic.
Year: 2023
Subjects: Educação Especial
Educação inclusiva
Ensino aprendizagem
Ludicidade

description: O presente estudo tem como objetivo principal discutir a funcionalidade do lúdico no contexto da Educação Inclusiva nas salas de aula. É justificável a escolha do tema por ser objeto de discussões devido à sua importância para o ensino aprendizagem, sabendo que não é só brincar por brincar e sim brincar por aprender, favorecendo o educando em diversos aspectos, uma vez que, através da ludicidade a criança desenvolve mais rápido a aprendizagem, aprimora a paciência e a sua independência. O trabalho, em sua metodologia optou por uma pesquisa bibliográfica, de natureza qualitativa, embasada nas pesquisas de: Almeida (2013), Kishimoto (2011), Silva (2004), Vygotsky (1997) e outros. Com o estudo, conclui-se que há fortalecimento psicomotor da criança com deficiência, contribuindo para um melhor convívio social e a comunicação. As práticas lúdicas usadas no método de ensino educacional possibilitam melhor aprendizado independentemente de qualquer limitação de cada aluno. A educação especial é a modalidade de ensino que atravessa todos os níveis do ensino, assim como as etapas e modalidades, realiza o atendimento educacional especializado, proporciona os recursos e serviços, orientando a utilização dos mesmos para o processo do ensino-aprendizagem. Sendo assim o aluno irá desenvolver através de atividades lúdicas com desenho, jogos, passeios, teatro, cantar, dança e brincadeiras com objetos. Através da introdução da ludicidade dentro da sala de aula a criança pode desenvolver a coordenação motora, comunicação, raciocínio lógico, linguagem e criatividade.
Catalysis-Induced Phase Separation and Autoregulation of Enzymatic Activity
Creators: name: Cotton, Matthew W.
name: Golestanian, Ramin
name: Agudo-Canalejo, Jaime
Publisher: name: arXiv
Year: 2022
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a thermodynamically consistent model describing the dynamics of a multi-component mixture where one enzyme component catalyzes a reaction between other components. We find that the catalytic activity alone can induce phase separation for sufficiently active systems and large enzymes, without any equilibrium interactions between components. In the limit of fast reaction rates, binodal lines can be calculated using a mapping to an effective free energy. We also explain how this catalysis-induced phase separation (CIPS) can act to autoregulate the enzymatic activity, which points at the biological relevance of this phenomenon.
description: 6 pages + 9 pages of supplementary material
Canonical polyadic decomposition of third-order tensors: reduction to generalized eigenvalue decomposition
Creators: name: Domanov, Ignat
name: De Lathauwer, Lieven
Publisher: name: arXiv
Year: 2013
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 15A69, 15A23

description: Canonical Polyadic Decomposition (CPD) of a third-order tensor is decomposition in a minimal number of rank-$1$ tensors. We call an algorithm algebraic if it is guaranteed to find the decomposition when it is exact and if it only relies on standard linear algebra (essentially sets of linear equations and matrix factorizations). The known algebraic algorithms for the computation of the CPD are limited to cases where at least one of the factor matrices has full column rank. In the paper we present an algebraic algorithm for the computation of the CPD in cases where none of the factor matrices has full column rank. In particular, we show that if the famous Kruskal condition holds, then the CPD can be found algebraically.
description: 32 pages = 25 pages of paper itself + 7 pages of supplementary materials
title: Ανάλυση επικινδυνότητας επισφαλών καταστάσεων κατά την αφαιροτοποθέτηση μείζονων εξαρτημάτων επί μαχητικών αεροσκαφών
title: Risk  assessment  of dangerous  situations  during  the  removal-installation  procedures of  major  parts  in  military  aircraft
Creators: name: Κοτουλας Λεωνιδας
Publisher: name: Technical University of Crete
Year: 2020

description: Στην παρούσα εργασία θα πραγματοποιηθεί ανάλυση επικινδυνότητας δύο εργασιών επί του αεροσκάφους F-16 Blk 52+. Οι εργασίες αυτές είναι η αφαιροτοποθέτηση σύμμορφων δεξαμενών και αεροκινητήρα . Πρόκειται για εργασίες μείζονων εξαρτημάτων, οι οποίες παρουσιάζουν μεγάλη συχνότητα εκτέλεσης σε μια Πολεμική Μοίρα. Εξαιτίας της φύσης των εργασιών κάθε σφάλμα επί του αεροσκάφους είναι δυνατόν να επιφέρει σοβαρούς τραυματισμούς προσωπικού, ακόμα και θάνατο πέρα από την αναμενόμενη φθορά ή καταστροφή του υλικού. Αυτός είναι και ο λόγος που οδήγησε στην επιλογή των συγκεκριμένων εργασιών, ώστε να αναλυθούν οι πιθανοί κίνδυνοι κατά την εκτέλεση τους και να αποτραπούν τυχόν επικίνδυνες καταστάσεις.
Τρεις είναι οι μέθοδοι που θα χρησιμοποιηθούν στην παρούσα εργασία για την ανάλυση επικινδυνότητας των επισφαλών αυτών καταστάσεων, α) η ιεραρχική ανάλυση εργασιών, β) η τεχνική των δέντρων αστοχιών και γ) τα διαγράμματα τύπου bow tie. Θα παρουσιαστούν μέσω διαγραμματικής απεικόνισης και θα αναλυθούν οι κίνδυνοι που εγκυμονούν κατά την εκτέλεση των εργασιών επί του αεροσκάφους, επίσης οι αιτίες – απειλές, οι οποίες εάν συμβούν ενεργοποιούν τους κινδύνους, καθώς και οι επιπτώσεις που επιφέρει ο κάθε κίνδυνος. Επιπλέον, θα γίνει μια αναλυτική παρουσίαση όλων των ενδιάμεσων φραγμών, οι οποίοι αφενός μπορούν να εμποδίσουν την εμφάνιση των απειλών και αφετέρου εάν προκύψει κάποιος κίνδυνος είναι δυνατόν να μετριάσουν τις ανεπιθύμητες καταστάσεις των επιπτώσεων.
A Participatory Research Project Exploring Educational Psychologists’ Engagement with Whiteness, White Privilege and Developing Anti-­Racist Practice.
Creators: name: Bateman, Alice
Publisher: name: University of East London
Year: 2023
Subjects: Anti-­racist practice
Development
Educational Psychology
Whiteness
White privilege

description: The educational psychology profession has acknowledged the Whiteness of psychology. Now, the profession is being called to action to challenge racial inequalities and bring about meaningful change to develop anti-­racist practice. Through a participatory approach, the primary researcher adopted the role of facilitator, recruiting a team of co-­researchers to explore what research could be undertaken to add value to understanding and engagement relating to Whiteness, White privilege and anti-­racist practice in educational psychology. The primary researcher’s understanding of race, racism and racial privilege is situated in an ecological context and the research was undertaken from the position of Critical Realism. Three educational psychology services in the UK volunteered to participate. The person-­centred planning tool PATH (Planning Alternative Tomorrows with Hope) was used to collect data. Data were then analysed using a reflexive thematic analysis which focused on five main themes to address the primary research question. The findings offer suggestions for how educational psychologists can develop their understanding of Whiteness, White privilege and anti-­racist practice, generated by educational professionals in the field. The findings also highlight current barriers and facilitators to developing understanding and practice for three educational psychology services in the UK. The primary researcher proposes that the final thematic map demonstrates an action plan for participants. It is hoped that the final thematic map may also be applicable as a model for reflection and development for the profession more widely, supporting educational psychologists to develop understanding of Whiteness, White privilege and anti-­racist practice. To end, the current research is critically evaluated. Tentative implications for educational psychology practice and opportunities for future research are suggested.
Tubulophilinopsis Zamora-Silva & Malaquias, 2018, GEN. NOV.
Creators: name: Zamora-Silva, Andrea
name: Malaquias, Manuel António E.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Cephalaspidea
Aglajidae
Tubulophilinopsis

description: GENUS TUBULOPHILINOPSIS GEN. NOV.
(FIGS 3O, 4A–D, 5B, E, I; TABLES 1 AND 2)
Type species: Philinopsis pilsbryi Eliot, 1900. By subsequent designation.
Diagnosis: Living animals up to 30 mm in length. Body elongated, oval, reduced sensory bristles, not visible to the naked eye; cephalic shield well differentiated from the body, with frontal elevation, crest-like (autapomorphy); eyes frontal, conspicuous, inserted in small circular unpigmented periocular areas (autapomorphy); posterior shield with symmetrical, rounded, short caudal lobes (Figs 3O, 4). Shell variable, convex-dilated with open whorl (Fig. 5B), convex-concealed (Fig. 5E) or spoon-shaped with prolonged and semi-wide open whorl (Fig. 5I). Buccal bulb tubular, long, muscular (autapomorphy). Penial papilla conical; prostate formed by a long narrow duct, not coiled (autapomorphy) (Rudman, 1972a; Gosliner, 1980).
Type locality: Rotuma Island, Fiji.
Etymology: The genus name (Lat. tubule = tube) refers to the tubular buccal bulb present in all species included in this new genus.
description: Published as part of Zamora-Silva, Andrea & Malaquias, Manuel António E., 2018, Molecular phylogeny of the Aglajidae head-shield sea slugs (Heterobranchia: Cephalaspidea): new evolutionary lineages revealed and proposal of a new classification, pp. 1-51 in Zoological Journal of the Linnean Society 183 on page 40
Rapid rhythmic entrainment in bio-inspired central pattern generators
Creators: name: Szorkovszky, Alex
name: Veenstra, Frank
name: Glette, Kyrre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Entrainment of movement to a periodic stimulus is a characteristic intelligent behaviour in humans and an important goal for adaptive robotics. We demonstrate a quadruped central pattern generator (CPG), consisting of modified Matsuoka neurons, that spontaneously adjusts its period of oscillation to that of a periodic input signal. This is done by simple forcing, with the aid of a filtering network as well as a neural model with tonic input-dependent oscillation period. We first use the NSGA3 algorithm to evolve the CPG parameters, using separate fitness functions for period tunability, limb homogeneity and gait stability. Four CPGs, maximizing different weighted averages of the fitness functions, are then selected from the Pareto front and each is used as a basis for optimizing a filter network. Different numbers of neurons are tested for each filter network. We find that period tunability in particular facilitates robust entrainment, that bounding gaits entrain more easily than walking gaits, and that more neurons in the filter network are beneficial for pre-processing input signals. The system that we present can be used in conjunction with sensory feedback to allow low-level adaptive and robust behaviour in walking robots.
description: 7 pages, 6 figures. To appear in Proceedings of the IEEE International Joint Conference on Neural Networks 2022
Complex temporal structure of activity in on-line electronic auctions
Creators: name: Slanina, Frantisek
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We analyze empirical data from the internet auction site Aukro.cz. The time series of activity shows truncated fractal structure on scales from about 1 minute to about 1 day. The distribution of waiting times as well as the distribution of number of auctions within fixed interval is a power law, with exponents $1.5$ and $3$, respectively. Possible implications for the modeling of stock-market fluctuations are briefly discussed.
MPEC 2023-U298 : 2023 UQ10
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 UQ10

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Quantum Interference of Hydrodynamic Modes in a Dirty Marginal Fermi Liquid
Creators: name: Wu, Tsz Chun
name: Liao, Yunxiang
name: Foster, Matthew S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the electrical transport of a two-dimensional non-Fermi liquid with disorder, and we determine the first quantum correction to the semiclassical dc conductivity due to quantum interference. We consider a system with $N$ flavors of fermions coupled to SU($N$) critical matrix bosons. Motivated by the SYK model, we employ the bilocal field formalism and derive a set of finite-temperature saddle-point equations governing the fermionic and bosonic self-energies in the large-$N$ limit. Interestingly, disorder smearing induces a marginal Fermi liquid (MFL) self-energy for the fermions. We next consider fluctuations around the saddle points and derive a MFL-Finkel'stein nonlinear sigma model. We find that the Altshuler-Aronov quantum conductance correction gives linear-$T$ resistivity that can dominate over the Drude result at low temperature. The strong temperature dependence of the quantum correction arises due to rapid relaxation of the mediating quantum-critical bosons. We verify that our calculations explicitly satisfy the Ward identity at the semiclassical and quantum levels. Our results establish that quantum interference persists in two-particle hydrodynamic modes, even when quasiparticles are subject to strong (Planckian) dissipation.
description: v2: corrected semiclassical conductivity; 39 pages, 19 figures; v3: published version
Abundance Enhancements in Impulsive Solar Energetic-Particle Events with Associated Coronal Mass Ejections
Creators: name: Reames, Donald V.
name: Cliver, Edward W.
name: Kahler, Stephen W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the abundances of the elements He through Pb in Fe-rich impulsive solar energetic-particle (SEP) events with measurable abundances of ions with atomic number Z>2 observed on the Wind spacecraft, and their relationship with coronal mass ejections (CMEs) observed by the Large Angle and Spectrometric Coronagraph (LASCO) onboard the Solar and Heliospheric Observatory (SOHO). On average the element abundances in these events are similar to coronal abundances at low Z but, for heavier elements, enhancements rise as a power law in the mass-to-charge ratio A/Q of the ions (at coronal temperatures of 2.5-3 MK) to a factor of 3 at Ne, 9 at Fe, and 900 for 75700 km/s), wider CMEs in our sample are related to SEPs with coronal abundances indicating hot coronal plasma with fully ionized He, C, N and O and moderate enhancements of heavier elements, relative to He, but slower (<700 km/s), narrower CMEs emerge from cooler plasma where higher SEP mass-to-charge ratios, A/Q, yield much greater abundance enhancements, even for C/He and O/He. Apparently, the open magnetic-reconnection region where the impulsive SEPs are accelerated also provides the energy to drive out CME plasma, accounting for a strong, probably universal, impulsive SEP-CME association.
description: Accepted for publication in Solar Physics
Protocolo - "EFICACIA DE LA ACUPUNTURA EN LA REDUCCION DE MEDIDAS ANTROPOMETRICAS EN PACIENTES ADULTOS CON OBESIDAD: UNA REVISION SISTEMATICA DE REVISIONES SISTEMATICAS"
Creators: name: Nieto Gutierrez, Wendy
name: Laredo López, Edwin Oswaldo
name: Minaya, Rudolf
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 320507
subject: Metabolic medicine

description: Protocolo de revisión sistemática de revisiones sistemáticas sobre: "EFICACIA DE LA ACUPUNTURA EN LA REDUCCION DE MEDIDAS ANTROPOMETRICAS EN PACIENTES ADULTOS CON OBESIDAD: UNA REVISION SISTEMATICA DE REVISIONES SISTEMATICAS"
title: Εκτίμηση κινδύνων ασφάλειας και υγείας σε βιομηχανία παραγωγής τροφίμων
Creators: name: Υψηλαντης Δημητρης
Publisher: name: Technical University of Crete
Year: 2020

description: Η εργασία καλύπτει την εκτίμηση κινδύνων και τα ελάχιστα μέτρα πρόληψης τα οποία θα πρέπει να λαμβάνονται στις εγκαταστάσεις και δραστηριότητες της εταιρείας Delicacy Food Ltd Βιομηχανική Περιοχή Δερύνειας στην Επαρχία Αμμοχώστου.
Κατά την ετοιμασία της έκθεσης εκτίμησης κινδύνων ασφάλειας και υγείας λήφθηκαν υπόψη οι πρόνοιες των νομοθεσιών και κανονισμών που έχουν θεσπιστεί και η παρούσα έκθεση εκτίμησης κινδύνων ασφάλειας και υγείας καλύπτει τις απαιτήσεις των Περί Διαχείρισης Θεμάτων Ασφάλειας και Υγείας στους Χώρους Εργασίας.
Σκοπός της μελέτης εκτίμησης κινδύνων ασφάλειας και υγείας είναι η καταγραφή και εκτίμηση των κινδύνων με απώτερο σκοπό την μείωση της επικινδυνότητας και τη δημιουργία ασφαλών και υγιεινών συνθηκών εργασίας στους χώρους εργασίας. Οι συνθήκες αυτές καλύπτουν τους εργοδοτούμενους αλλά και τρίτα πρόσωπα που επηρεάζονται από τις δραστηριότητες της εταιρείας όπως πελάτες - επισκέπτες, προμηθευτές, υπεργολάβοι, γείτονες και διερχόμενοι.
 Κάναμε χρήση της μεθόδου διαγραμμάτων bow-tie και της μεθόδου ORA (Occupational Risk Assessment) οπου αναλύθηκαν οι  συχνότερες πηγές  κινδύνων που εμφανίζονται στο χώρο παράγωγης της εταιρίας με τη μέθοδο των bow-tie και στην συνέχεια με τη  χρήση της μεθόδου ORA μοντελοποιήθηκαν οι επιπτώσεις των επαγγελματικών κινδύνων. Δηλαδή υπολογίστηκε ο δείκτης ατομικής διακινδύνευσης R για τον κάθε κίνδυνο ξεχωριστά ώστε να μπορεί να προσδιοριστεί το επίπεδο επικινδυνότητας του κάθε κινδύνου.
Μέσα από την μελέτη αυτή η εταιρεία θα εφαρμόζει προληπτική πολιτική έναντι των πιθανών κινδύνων ασφάλειας και υγείας και θα εξασφαλίζει τη δυνατότητα ενημέρωσης και επικοινωνίας και την αποτελεσματική προστασία όλων των δυνητικά επηρεαζόμενων από κινδύνους που πηγάζουν από τις δραστηριότητες της.
Measure synchronization in a two-species bosonic Josephson junction
Creators: name: Tian, Jing
name: Qiu, Haibo
name: Wang, Guanfang
name: Chen, Yong
name: Fu, Li-bin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Measure synchronization (MS) in a two-species bosonic Josephson junction (BJJ) is studied based on semi-classical theory. Six different scenarios for MS, including two in the Josephson oscillation regime (0 phase mode) and four in the self-trapping regime ($π$ phase mode), have been clearly shown. Systematic investigations of the common features behind these different scenarios have been performed. We show that the average energies of the two species merge at the MS transition point. The scaling of the power law near the MS transition has been verified, and the critical exponent is 1/2 for all of the different scenarios for MS. We also illustrate MS in a three-dimensional phase space; from this illustration, more detailed information on the dynamical process can be obtained. Particularly, by analyzing the Poincare sections with changing interspecies interactions, we find that the two-species BJJ exhibits separatrix crossing behavior at MS transition point, and such behavior depicts the general mechanism behind the different scenarios for the MS transitions. The new critical behavior found in a two-species BJJ is expected to be found in real systems of atomic Bose gases.
Collision-induced C_60 rovibrational relaxation probed by state-resolved nonlinear spectroscopy
Creators: name: Liu, Lee R.
name: Changala, P. Bryan
name: Weichman, Marissa L.
name: Liang, Qizhong
name: Toscano, Jutta
name: Klos, Jacek
name: Kotochigova, Svetlana
name: Nesbitt, David J.
name: Ye, Jun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum state-resolved spectroscopy was recently achieved for C60 molecules when cooled by buffer gas collisions and probed with a midinfrared frequency comb. This rovibrational quantum state resolution for the largest molecule on record is facilitated by the remarkable symmetry and rigidity of C60, which also present new opportunities and challenges to explore energy transfer between quantum states in this many-atom system. Here we combine state-specific optical pumping, buffer gas collisions, and ultrasensitive intracavity nonlinear spectroscopy to initiate and probe the rotation-vibration energy transfer and relaxation. This approach provides the first detailed characterization of C60 collisional energy transfer for a variety of collision partners, and determines the rotational and vibrational inelastic collision cross sections. These results compare well with our theoretical modeling of the collisions, and establish a route towards quantum state control of a new class of unprecedentedly large molecules.
To remove or not remove Mobile Apps? A data-driven predictive model approach
Creators: name: Mohsen, Fadi
name: Karastoyanova, Dimka
name: Azzopardi, George
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Mobile app stores are the key distributors of mobile applications. They regularly apply vetting processes to the deployed apps. Yet, some of these vetting processes might be inadequate or applied late. The late removal of applications might have unpleasant consequences for developers and users alike. Thus, in this work we propose a data-driven predictive approach that determines whether the respective app will be removed or accepted. It also indicates the features' relevance that help the stakeholders in the interpretation. In turn, our approach can support developers in improving their apps and users in downloading the ones that are less likely to be removed. We focus on the Google App store and we compile a new data set of 870,515 applications, 56% of which have actually been removed from the market. Our proposed approach is a bootstrap aggregating of multiple XGBoost machine learning classifiers. We propose two models: user-centered using 47 features, and developer-centered using 37 features, the ones only available before deployment. We achieve the following Areas Under the ROC Curves (AUCs) on the test set: user-centered = 0.792, developer-centered = 0.762.
Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) north polar springtime recession mapping: First Three Mars years of observations
Creators: name: Brown, Adrian J.
name: Calvin, Wendy M.
name: Murchie, Scott L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report on mapping of the north polar region of Mars using data from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument. We have observed three Mars Years (28-30) of late-winter and spring recessions (Ls=304°-92°). Our investigations have led to the following observations: 1. We classify the retreat of the north polar seasonal cap into 'pre-sublimation', 'early spring', 'asymmetric' and 'stable' periods according to the prevalent H2O ice grain size distributions. 2. During the early spring, the signatures of CO2 ice at the edge of the cap are obscured by H2O ice, which increases the apparent size of the H2O ice annulus around the seasonal CO2 cap at this time. At around Ls=25°, this process changes into an asymmetrical distribution of H2O deposition, covering CO2 signatures more rapidly in the longitude range from 90-210°E. 3. We detect signatures of 'pure' CO2 ice in extremely limited locations (in Lomonosov Crater) even in mid winter. H2O ice signatures appear everywhere in the retreating CO2 seasonal cap, in contrast with the south polar seasonal cap. 4. We find that average H2O ice grain sizes continuously increase from northern mid-winter to the end of springtime - this is the inverse of the behavior of CO2 ice grain sizes in the southern springtime.
description: 29 pages, 8 figures, 1 table
Thermal Transport in Turbostratic Multilayer Graphene
Creators: name: Mohapatra, A.
name: Rao, M. S. Ramachandra
name: Jaiswal, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The presence of twist angles between layers of two-dimensional materials has a profound impact on their physical properties. Turbostratic multilayer graphene is a system containing a distribution of rotational stacking faults, and these interfaces also have variable twist angles. In this work, we examine the influence of turbostratic single-layer graphene content on the in-plane thermal conductivity of a defect free multilayer graphene system with low defect density. Detailed Raman mode analysis is used to quantify the content of turbostratic single-layer graphene in the system while complementing insight is obtained from selected area electron diffraction studies. Thermal transport in these systems is investigated with Raman optothermal technique supported with finite element analysis simulations. Thermal conductivity of AB-stacked graphene diminishes by a factor of 2.59 for 1% of turbostratic single-layer graphene content, while the decrease at 19% turbostratic content is by an order in magnitude. Thermal conductivity broadly obeys the relation, $κ$ $\propto$ exp(-F), where F is the fraction of turbostratic single-layer graphene content in the system
description: 41 pages, 14 Figures
MPEC 2023-U299 : 2023 UR10
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 UR10

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Slow sound propagation in lossy locally resonant periodic structures
Creators: name: Theocharis, G.
name: Richoux, O.
name: Romero-García, V.
name: Tournat, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the sound propagation in an air-filled tube periodically loaded with Helmholtz resonators. By tuning the Helmholtz with the Bragg resonance, we study the efficiency of slow sound propagation in the presence of the intrinsic viscothermal losses of the system. While in the lossless case the overlapping of the resonances results in slow sound induced transparency of a narrow frequency band surrounded by a strong and broadband gap, the inclusion of the unavoidable losses imposes limits to the slowdown factor and the maximum transmission. Experiments, theory and finite element simulations have been used for the characterization of acoustic wave propagation. Experiments, in good agreement with the lossy theory, reveal the possibility of slowing sound at low frequencies by 20 times. A trade-off among the relevant parameters (delay time, maximum transmission, bandwidth) as a function of the tuning between Bragg and Helmholtz resonance frequency is also presented.