cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spatial Argumentation Practices: (Re)imagining Curriculum to Restore Hope and Healing for Black Children
Creators: name: Washington, Simeko Tanye
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Uncategorized

description: This constructed grounded theory study (Charmaz, 2006) explores curriculum design, teaching, and learning with spatial data to improve teachers' planning and instructional practices through the meaningful development of spatial argumentation practices as an intervention-based social studies unit. Spatial argumentation practices (SAPs) investigate teachers' and students' meaning-making of spatial data as they learn to identify the embedded connotations of material spaces via maps and other spatial representations, deconstruct them, and express their subjugated knowledge about places. This study used a social design-based method (Gutiérrez & Vossoughi, 2010; Gutiérrez & Jurrow, 2016; Jurow & Shea, 2015). The findings indicate that planning for spatial argumentation practices added a decolonial lens to curriculum development, improved the culture and climate in the classroom, and increased self-reflective planning practices to de-center Whiteness. Teachers used inquiry-based instructional strategies during SAPs lessons. In addition, their epistemic experiences influenced their interpretation of teaching and spatial productions. Within the SAPs curriculum, race heavily impacted students' understanding of space and exhibited their trauma when learning. SAPs facilitated Black middle school students (re)imagining space and (re)claiming their academic identities as a means of activism to promote well-being. Future implications for this study provide insight into developing a spatial argumentation practice curriculum that offers professional development around intentionally promoting hope and healing (Ginwright, 2015) for Black students and providing anti-racist pedagogy for educators. This study adds to the literature on guiding research partnerships toward equitable learning opportunities for Black middle school students and possibilities for creating a more just society.
Symbolic factors of $\mathcal{S}$-adic subshifts of finite alphabet rank
Creators: name: Espinoza, Bastián
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37B10

description: This paper studies several aspects of symbolic ({\em i.e.}\ subshift) factors of $\mathcal{S}$-adic subshifts of finite alphabet rank. First, we address a problem raised in [DDPM20] about the topological rank of symbolic factors of $\mathcal{S}$-adic subshifts and prove that this rank is at most the one of the extension system, improving results from [E20] and [GH2020]. As a consequence of our methods, we prove that finite topological rank systems are coalescent. Second, we investigate the structure of fibers $π^{-1}(y)$ of factor maps $π\colon(X,T)\to(Y,S)$ between minimal $\mathcal{S}$-adic subshifts of finite alphabet rank and show that they have the same finite cardinality for all $y$ in a residual subset of $Y$. Finally, we prove that the number of symbolic factors (up to conjugacy) of a fixed subshift of finite topological rank is finite, thus extending Durand's similar theorem on linearly recurrent subshifts [D00].
description: 34 pages, 1 figure. Published now in Ergodic Theory and Dynamical Systems
r/AskAnAustralian Questions
Creators: name: Van Poucke, Margo
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 470401
subject: Applied linguistics and educational linguistics
classificationCode: 470404
subject: Corpus linguistics
classificationCode: 470403
subject: Computational linguistics
classificationCode: 470499
subject: Linguistics not elsewhere classified

description: A set of 70 questions retrieved from the subreddit r/AskAnAustralian
Observed relationship between CO2-1 and dust emission during post-AGB phase
Creators: name: He, J. H.
name: Szczerba, R.
name: Hasegawa, T. I.
name: Schmidt, M. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A CO\,2-1 line survey is performed toward a sample of 58 high Galactic latitude post-AGB (pAGB) stars. To complement the observations, a compilation of literature CO\,2-1 line data of known pAGB stars is done. After combining the datasets, CO\,2-1 line data are available for 133 pAGB stars (about 34 per cent of known pAGB stars) among which 44 are detections. The CO line strengths are compared with infrared dust emission for these pAGB stars by defining a ratio between the integrated CO\,2-1 line flux and {\it IRAS} 25\,mu flux density (CO-IR ratio). The relationship between the CO-IR ratio and the {\it IRAS} color C23 (defined with the 25 and 60\,mu flux densities) is called here the CO-IR diagram. The pAGB objects are found to be located between AGB stars and planetary nebulae (PNe), and segregate into three distinctive groups (I, II and III) on the CO-IR diagram. By analyzing their various properties such as chemical types, spectral types, binarity, circumstellar envelope expansion velocities, and pAGB sub-types on the CO-IR diagram, it is argued that the group-I objects are mainly intermediate mass C-rich pAGB stars in early pAGB stage (almost all of the considered carbon rich `21\,mu' stars belong to this group); the group-II objects are massive or intermediate mass pAGB stars which already follow the profound trend of PNe; and the group-III objects are mainly low mass binary pAGB stars with very weak CO\,2-1 line emission (almost all of the considered RV\,Tau variables belong to this group). The CO-IR diagram is proven to be a powerful tool to investigate the co-evolution of circumstellar gas and dust during the short pAGB stage of stellar evolution.
description: 36 pages, 10 figures
Limiting Superluminal Neutrino Velocity and Lorentz Invariance Violation by Neutrino Emission from the Blazar TXS 0506+056
Creators: name: Wang, Kai
name: Xi, Shao-Qiang
name: Shao, Lijing
name: Liu, Ruo-Yu
name: Li, Zhuo
name: Zhang, Zhong-Kai
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The detection of high-energy neutrino coincident with the blazar TXS 0506+056 provides a unique opportunity to test Lorentz invariance violation (LIV) in the neutrino sector. Thanks to the precisely measured redshift, i.e., $z=0.3365$, the comoving distance of the neutrino source is determined. In this work, we obtain and discuss the constraints on the superluminal neutrino velocity $δ_ν$ and the LIV by considering the energy loss of superluminal neutrino during propagation. Given superluminal electron velocity ($δ_e \ge 0$), a very stringent constraint on superluminal neutrino velocity can be reached, i.e., $δ_ν\lesssim 1.3\times 10^{-18}$, corresponding to the quantum gravity (QG) scale $M_{\rm QG,1} \gtrsim 5.7 \times 10^{3} M_{\rm Pl}$ and $M_{\rm QG,2} \gtrsim 9.3 \times 10^{-6} M_{\rm Pl}$ for linear (quadratic) LIV, which are $\sim 12$ orders of magnitude tighter for linear LIV and $\sim 9$ orders tighter for quadratic LIV compared to the time-of-flight constraint from MeV neutrinos of SN 1987A. While given the subluminal electron velocity, a weaker constraint on the superluminal neutrino velocity is obtained, i.e., $δ_ν\lesssim 8 \times 10^{-17}$, which is consistent with the conclusions of previous works. We also study the neutrino detection probability due to the distortion of neutrino spectral shape during propagation, which gives slightly weaker constraints than above by a factor of $\sim2$.
description: 4 pages, 1 table, accepted by Phys. Rev. D
Attention Meets Perturbations: Robust and Interpretable Attention with Adversarial Training
Creators: name: Kitada, Shunsuke
name: Iyatomi, Hitoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Although attention mechanisms have been applied to a variety of deep learning models and have been shown to improve the prediction performance, it has been reported to be vulnerable to perturbations to the mechanism. To overcome the vulnerability to perturbations in the mechanism, we are inspired by adversarial training (AT), which is a powerful regularization technique for enhancing the robustness of the models. In this paper, we propose a general training technique for natural language processing tasks, including AT for attention (Attention AT) and more interpretable AT for attention (Attention iAT). The proposed techniques improved the prediction performance and the model interpretability by exploiting the mechanisms with AT. In particular, Attention iAT boosts those advantages by introducing adversarial perturbation, which enhances the difference in the attention of the sentences. Evaluation experiments with ten open datasets revealed that AT for attention mechanisms, especially Attention iAT, demonstrated (1) the best performance in nine out of ten tasks and (2) more interpretable attention (i.e., the resulting attention correlated more strongly with gradient-based word importance) for all tasks. Additionally, the proposed techniques are (3) much less dependent on perturbation size in AT. Our code is available at https://github.com/shunk031/attention-meets-perturbation
description: 12 pages, 4 figures. Accepted by IEEE Access on Jun. 21, 2021
A derivation of a microscopic entropy and time irreversibility from the discreteness of time
Creators: name: Riek, Roland
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: All of the basic microsopic physical laws are time reversible. In contrast, the second law of thermodynamics, which is a macroscopic physical representation of the world, is able to describe irreversible processes in an isolated system through the change of entropy S larger than 0. It is the attempt of the present manuscript to bridge the microscopic physical world with its macrosocpic one with an alternative approach than the statistical mechanics theory of Gibbs and Boltzmann. It is proposed that time is discrete with constant step size. Its consequence is the presence of time irreversibility at the microscopic level if the present force is of complex nature (i.e. not const). In order to compare this discrete time irreversible mechamics (for simplicity a classical, single particle in a one dimensional space is selected) with its classical Newton analog, time reversibility is reintroduced by scaling the time steps for any given time step n by the variable sn leading to the Nose-Hoover Lagrangian. The corresponding Nose-Hoover Hamiltonian comprises a term Ndf *kB*T*ln(sn) (with kB the Boltzmann constant, T the temperature, and Ndf the number of degrees of freedom) which is defined as the microscopic entropy Sn at time point n multiplied by T. Upon ensemble averaging this microscopic entropy Sn in equilibrium for a system which does not have fast changing forces approximates its macroscopic counterpart known from thermodynamics. The presented derivation with the resulting analogy between the ensemble averaged microscopic entropy and its thermodynamic analog suggests that the original description of the entropy by Boltzmann and Gibbs is just an ensemble averaging of the time scaling variable sn which is in equilibrium close to 1, but that the entropy term itself has its root not in statistical mechanics but rather in the discreteness of time.
The role of magnetic fields in pre-main sequence stars
Creators: name: Hussain, Gaitee A. J.
name: Alecian, Evelyne
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Strong, kilo-Gauss, magnetic fields are required to explain a range of observational properties in young, accreting pre-main sequence (PMS) systems. We review the techniques used to detect magnetic fields in PMS stars. Key results from a long running campaign aimed at characterising the large scale magnetic fields in accreting T Tauri stars are presented. Maps of surface magnetic flux in these systems can be used to build 3-D models exploring the role of magnetic fields and the efficiency with which magnetic fields can channel accretion from circumstellar disks on to young stars. Long-term variability in T Tauri star magnetic fields strongly point to a dynamo origin of the magnetic fields. Studies are underway to quantify how changes in magnetic fields affect their accretion properties. We also present the first results from a new programme that investigates the evolution of magnetic fields in intermediate mass (1.5-3 Msun) pre-main sequence stars as they evolve from being convective T Tauri stars to fully radiative Herbig AeBe stars.
description: 13 pages, 6 figures, conference proceedings
Regulatory Mechanisms in Biological Oscillator Circuits
Creators: name: Agrahar, Chaitra
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Uncategorized

description: Oscillatory processes are used throughout cell biology to control time-varying physiology including the cell cycle, circadian rhythms, and developmental patterning. It has long been understood that free- running oscillations require feedback loops where the activity of one component depends on the concentration of another. Oscillator motifs have been classified by the positive or negative net logic of these loops. However, each feedback loop can be implemented by regulation of either the production step or the removal step. These possibilities are not equivalent because of the underlying structure of biochemical kinetics. By computationally searching over these possibilities, we find that certain molecular implementations are much more likely to produce stable oscillations. These preferred molecular implementations are found in many natural systems, but not typically in artificial oscillators, suggesting a design principle for future synthetic biology. Finally, we develop an approach to oscillator function across different reaction networks by evaluating the biosynthetic cost needed to achieve a given phase coherence. This analysis predicts that phase drift is most efficiently suppressed by delayed negative feedback loop architectures that operate without positive feedback.
МЕТОДЫ ОЦЕНКИ ЭФФЕКТИВНОСТИ ИСПОЛЬЗУЕМЫХ СОЦИАЛЬНО-ПСИХОЛОГИЧЕСКИХ МЕТОДОВ РАБОТЫ С ПЕРСОНАЛОМ
Creators: name: СМИРНОВА ЖАННА ВЕНЕДИКТОВНА
name: МУХИНА МАРИЯ ВАДИМОВНА
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: СОЦИАЛЬНО-ПСИХОЛОГИЧЕСКОЕ ИССЛЕДОВАНИЕ
МОТИВАЦИИ
ПРЕДПРИЯТИЯ
ПЕРСОНАЛ
SOCIO-PSYCHOLOGICAL RESEARCH
MOTIVATION
ENTERPRISES
STAFF

description: В статье раскрывается понятия оценки эффективности используемых социально-психологических методов работы с персоналом на предприятиях. Раскрыты методы повышения эффективности мотивации персонала. Исследован социально-психологический климат в коллективе. Определена более эффективная методика исследования мотивации персонала. Обобщен результат проведенного экспериментального исследования по проделанному анкетированию. Проанализирован вывод по проделанному исследованию.
A revisit of PSR J1909$-$3744 with 15-year high-precision timing
Creators: name: Liu, K.
name: Guillemot, L.
name: Istrate, A. G.
name: Shao, L.
name: Tauris, T. M.
name: Wex, N.
name: Antoniadis, J.
name: Chalumeau, A.
name: Cognard, I.
name: Desvignes, G.
name: Freire, P. C. C.
name: Kehl, M. S.
name: Theureau, G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on a high-precision timing analysis and an astrophysical study of the binary millisecond pulsar, PSR J1909$-$3744, motivated by the accumulation of data with well improved quality over the past decade. Using 15 years of observations with the Nançay Radio Telescope, we achieve a timing precision of approximately 100 ns. We verify our timing results by using both broad-band and sub-band template matching methods to create the pulse time-of-arrivals. Compared with previous studies, we improve the measurement precision of secular changes in orbital period and projected semi-major axis. We show that these variations are both dominated by the relative motion between the pulsar system and the solar system barycenter. Additionally, we identified four possible solutions to the ascending node of the pulsar orbit, and measured a precise kinetic distance of the system. Using our timing measurements and published optical observations, we investigate the binary history of this system using the stellar evolution code MESA, and discuss solutions based on detailed WD cooling at the edge of the WD age dichotomy paradigm. We determine the 3-D velocity of the system and show that it has been undergoing a highly eccentric orbit around the centre of our Galaxy. Furthermore, we set up a constraint over dipolar gravitational radiation with the system, which is complementary to previous studies given the mass of the pulsar. We also obtain a new limit on the parameterised post-Newtonian parameter, $α_1<2.1 \times 10^{-5}$ at 95 % confidence level, which is fractionally better than previous best published value and achieved with a more concrete method.
description: 17 pages, 14 figures, accepted for publication in MNRAS
Sistem pendukung keputusan pemberian beasiswa bidik misi
Creators: name: Umami, Pesos
name: Abdillah, Leon Andretti
name: Yadi, Ilman Zuhri
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Decision support systems (DSS) have been used in many applications to speed up decision making. This article will discuss the implementation of DSS for decision-making for scholarships "bidik misi". In terms of processing data related to the bidik misi scholarship are accordance with the regulations set by UBD. To facilitate the selection process of bidik misi scholarship then the authors used SAW method. The criteria for this scholarship involves academic achievement index, parents income, parents dependents number, semester, etc. Author also used waterfall model approach to developed the systems. The result is a decision support system that able to help decisions making quickly and in accordance with the rules of bidik misi scholarship.
description: Konferensi Nasional Sistem Informasi (KNSI), STMIK Dipanegara Makassar, Sulawesi Selatan, 2014
The star-structure connectivity and star-substructure connectivity of hypercubes and folded hypercubes
Creators: name: Ba, Lina
name: Zhang, Heping
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: As a generalization of vertex connectivity, for connected graphs $G$ and $T$, the $T$-structure connectivity $κ(G, T)$ (resp. $T$-substructure connectivity $κ^{s}(G, T)$) of $G$ is the minimum cardinality of a set of subgraphs $F$ of $G$ that each is isomorphic to $T$ (resp. to a connected subgraph of $T$) so that $G-F$ is disconnected. For $n$-dimensional hypercube $Q_{n}$, Lin et al. [6] showed $κ(Q_{n},K_{1,1})=κ^{s}(Q_{n},K_{1,1})=n-1$ and $κ(Q_{n},K_{1,r})=κ^{s}(Q_{n},K_{1,r})=\lceil\frac{n}{2}\rceil$ for $2\leq r\leq 3$ and $n\geq 3$. Sabir et al. [11] obtained that $κ(Q_{n},K_{1,4})=κ^{s}(Q_{n},K_{1,4})=\lceil\frac{n}{2}\rceil$ for $n\geq 6$, and for $n$-dimensional folded hypercube $FQ_{n}$, $κ(FQ_{n},K_{1,1})=κ^{s}(FQ_{n},K_{1,1})=n$, $κ(FQ_{n},K_{1,r})=κ^{s}(FQ_{n},K_{1,r})=\lceil\frac{n+1}{2}\rceil$ with $2\leq r\leq 3$ and $n\geq 7$. They proposed an open problem of determining $K_{1,r}$-structure connectivity of $Q_n$ and $FQ_n$ for general $r$. In this paper, we obtain that for each integer $r\geq 2$, $κ(Q_{n};K_{1,r})=κ^{s}(Q_{n};K_{1,r})=\lceil\frac{n}{2}\rceil$ and $κ(FQ_{n};K_{1,r})=κ^{s}(FQ_{n};K_{1,r})= \lceil\frac{n+1}{2}\rceil$ for all integers $n$ larger than $r$ in quare scale. For $4\leq r\leq 6$, we separately confirm the above result holds for $Q_n$ in the remaining cases.
Questions r/AskAnAustralian
Creators: name: Van Poucke, Margo
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 470401
subject: Applied linguistics and educational linguistics
classificationCode: 470404
subject: Corpus linguistics
classificationCode: 470403
subject: Computational linguistics
classificationCode: 470499
subject: Linguistics not elsewhere classified

description: A set of 70 questions retrieved from the subreddit r/AskAnAustralian
МЕТОДИЧЕСКИЕ ОСНОВЫ ВНЕДРЕНИЯ БИЗНЕС-ПРОЦЕССОВ В УПРАВЛЕНИЕ ГАЗОТРАНСПОРТНЫМ ПРЕДПРИЯТИЕМ
Creators: name: КЕМАЙКИН НИКОЛАЙ КОНСТАНТИНОВИЧ
name: ПАРАМОНОВ АЛЕКСАНДР ВАСИЛЬЕВИЧ
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: БИЗНЕС-ПРОЦЕСС
ЖИЛИЩНО-КОММУНАЛЬНОЕ ХОЗЯЙСТВО
ЖКХ
КОНТРОЛЛИНГ
ПРОЦЕССНЫЙ ПОДХОД
BUSINESS PROCESS
HOUSING AND COMMUNAL SERVICES
HOUSING AND UTILITIES
CONTROLLING
PROCESS APPROACH

description: В статье авторами предложена методика внедрения процессного подхода на предприятиях сферы жилищно-коммунального хозяйства, осуществляющих транспортировку газа и обслуживание газового оборудования. Предметом исследования являются теоретические, методологические вопросы и практические результаты, связанные с разработкой системы контроллинга и внедрением процессного подхода на предприятиях сферы жилищно-коммунального хозяйства, в частности предприятиях транспортирующих газ и обслуживающих газовое оборудование. Объектом исследования являются предприятия, осуществляющие транспортировку газа, обслуживающие внутридомовое и внутриквартирное газовое оборудование. Целью работы является разработка методических основ создания и внедрения бизнес-процессов, для повышения результативности и эффективности управления предприятиями газотранспортной сферы. Методической и теоретической основой данной научной работы являются труды отечественных ученых, данные материалов международных и отечественных конференций, периодической печати, посвященные повышению качества услуг в сфере жилищно-коммунального хозяйства, качества управления предприятием, методологии внедрения процессного подхода, а также по проблемам методологии контроллинга в сфере жилищно-коммунального хозяйства. Решение задач, поставленных в исследовании, осуществлялось с использованием системного подхода. Исследователями была использована концепция контроллинга координации и интеграции. На основе данной концепции была предложена частная технология контроллинга применительно к газораспределительным предприятиям. Одним из важнейших этапов формирования системы контролинга является внедрение процессного подхода. В работе подробно представлена методика проектирования и внедрения бизнес-процессов, так же приведены примеры основных типовых бизнес-процессов и показатели их эффективности. Предложенная технология контроллинга имеет теоретическое и практическое значение в вопросах повышения эффективности управления на газотранспортных и газораспределительных предприятиях. Практическая значимость состоит в том, что предложенная методология позволит сократить затраты на проектирование, разработку и внедрение системы управления на основе контроллинга, а также допускает ее развитие в процессе эксплуатации
Rismethus longicollis
Creators: name: Kotru, Akash
name: Chandran, Nithya
name: Dubey, Anil Kumar
name: Prosvirov, Alexander S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Rismethus
Rismethus longicollis

description: Rismethus longicollis (Candèze, 1897)
Meristhus longicollis Candèze, 1897: 11.
Rismethus longicollis (Candèze), Hayek, 1979: 244.
Type depository. Syntype (RBINS).
Type locality. “Bengale”.
Distribution. India: West Bengal (Chakraborty, Chakrabarti, 2000). Elsewhere: Nepal, Oriental Region (Cate, 2007).
Literature. Candèze (1897: 11): original description; Hayek (1979: 244): combination; Chakraborty and Chakrabarti (2000: 79): catalogue.
description: Published as part of Kotru, Akash, Chandran, Nithya, Dubey, Anil Kumar & Prosvirov, Alexander S., 2025, A catalogue of Indian Agrypninae Candèze, 1857 (Coleoptera: Elateridae), pp. 1-66 in Zootaxa 5614 (1) on page 35, DOI: 10.11646/zootaxa.5614.1.1, http://zenodo.org/record/15217075
Slow-Speed Supernovae from the Palomar Transient Factory: Two Channels
Creators: name: White, Christopher J.
name: Kasliwal, Mansi M.
name: Nugent, Peter E.
name: Gal-Yam, Avishay
name: Howell, D. Andrew
name: Sullivan, Mark
name: Goobar, Ariel
name: Piro, Anthony L.
name: Bloom, Joshua S.
name: Kulkarni, Shrinivas R.
name: Laher, Russ R.
name: Masci, Frank
name: Ofek, Eran O.
name: Surace, Jason
name: Ben-Ami, Sagi
name: Cao, Yi
name: Cenko, S. Bradley
name: Hook, Isobel M.
name: Jönsson, Jakob
name: Matheson, Thomas
name: Sternberg, Assaf
name: Quimby, Robert M.
name: Yaron, Ofer
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Since the discovery of the unusual prototype SN 2002cx, the eponymous class of low-velocity, hydrogen-poor supernovae has grown to include at most another two dozen members identified from several heterogeneous surveys, in some cases ambiguously. Here we present the results of a systematic study of 1077 hydrogen-poor supernovae discovered by the Palomar Transient Factory, leading to nine new members of this peculiar class. Moreover we find there are two distinct subclasses based on their spectroscopic, photometric, and host galaxy properties: The "SN 2002cx-like" supernovae tend to be in later-type or more irregular hosts, have more varied and generally dimmer luminosities, have longer rise times, and lack a Ti II trough when compared to the "SN 2002es-like" supernovae. None of our objects show helium, and we counter a previous claim of two such events. We also find that these transients comprise 5.6+17-3.7% (90% confidence) of all SNe Ia, lower compared to earlier estimates. Combining our objects with the literature sample, we propose that these subclasses have two distinct physical origins.
description: 49 pages, 36 figures, submitted to ApJ
Heavy Handed Quest for Fixed Points in Multiple Coupling Scalar Theories in the $\varepsilon$ Expansion
Creators: name: Osborn, Hugh
name: Stergiou, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The tensorial equations for non trivial fully interacting fixed points at lowest order in the $\varepsilon$ expansion in $4-\varepsilon$ and $3-\varepsilon$ dimensions are analysed for $N$-component fields and corresponding multi-index couplings $λ$ which are symmetric tensors with four or six indices. Both analytic and numerical methods are used. For $N=5,6,7$ in the four-index case large numbers of irrational fixed points are found numerically where $||λ||^2$ is close to the bound found by Rychkov and Stergiou in arXiv:1810.10541. No solutions, other than those already known, are found which saturate the bound. These examples in general do not have unique quadratic invariants in the fields. For $N \geqslant 6$ the stability matrix in the full space of couplings always has negative eigenvalues. In the six index case the numerical search generates a very large number of solutions for $N=5$.
description: 50 pages, 6 figures. v2: 53 pages, 6 figures; Expanded discussion of N=4 case including splitting of fixed point at order $\varepsilon^2$; v4: Minor corrections and additions
Modèle à processus latent et algorithme EM pour la régression non linéaire
Creators: name: Chamroukhi, Faicel
name: Samé, Allou
name: Govaert, Gérard
name: Aknin, Patrice
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: Machine Learning (cs.LG)
subject: Methodology (stat.ME)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: A non linear regression approach which consists of a specific regression model incorporating a latent process, allowing various polynomial regression models to be activated preferentially and smoothly, is introduced in this paper. The model parameters are estimated by maximum likelihood performed via a dedicated expecation-maximization (EM) algorithm. An experimental study using simulated and real data sets reveals good performances of the proposed approach.
Bringing Together Robotics, Neuroscience, and Psychology: Lessons Learned From an Interdisciplinary Project
Creators: name: Wudarczyk, Olga A.
name: Kirtay, Murat
name: Kuhlen, Anna Katharina
name: Abdel Rahman, Rasha
name: Haynes, John-Dylan
name: Hafner, Verena V.
name: Pischedda, Doris
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: interdisciplinarity
subject: human-robot interaction
subject: social robotics
subject: collaboration
subject: robotics
subject: social intelligence
subject: cognitive neurorobotics
subject: diversity
subject: 150 Psychologie
subject: 004 Informatik
subject: 570 Biologie

description: The diversified methodology and expertise of interdisciplinary research teams provide the opportunity to overcome the limited perspectives of individual disciplines. This is particularly true at the interface of Robotics, Neuroscience, and Psychology as the three fields have quite different perspectives and approaches to offer. Nonetheless, aligning backgrounds and interdisciplinary expectations can present challenges due to varied research cultures and practices. Overcoming these challenges stands at the beginning of each productive collaboration and thus is a mandatory step in cognitive neurorobotics. In this article, we share eight lessons that we learned from our ongoing interdisciplinary project on human-robot and robot-robot interaction in social settings. These lessons provide practical advice for scientists initiating interdisciplinary research endeavors. Our advice can help to avoid early problems and deal with differences between research fields, prepare for and anticipate challenges, align project expectations, and speed up research progress, thus promoting effective interdisciplinary research across Robotics, Neuroscience, and Psychology.
ПРЕСКРИНИНГ КАК ЧАСТЬ СИСТЕМЫ АВТОМАТИЗИРОВАННОГО ПОДБОРА ПЕРСОНАЛА В КОМПАНИИ
Creators: name: ПРОСВИРИНА НАТАЛЬЯ ВИКТОРОВНА
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: ПРЕСКРИНИНГ
АВТОМАТИЗАЦИЯ ПОДБОРА ПЕРСОНАЛА
AI-СИСТЕМЫ
ЧАТ-БОТ
РЕКРУТИНГ
HR-СПЕЦИАЛИСТЫ
УПРАВЛЕНИЕ ПЕРСОНАЛОМ
PRESCREENING
RECRUITMENT AUTOMATION
AI SYSTEMS
CHAT BOT
RECRUITING
HR SPECIALISTS
PERSONNEL MANAGEMENT

description: Актуальность исследования заключается в том, что сегодня, в эпоху цифровой трансформации бизнеса и растущей роботизации рабочих мест, формируются новые требования к соискателям: к их квалификации и набору компетенций, цифровой грамотности, знаниям программного обеспечения, способности к групповому и самообучению, а также готовности к изменениям. Этот процесс усложняет и увеличивает нагрузку HR-служб по подбору персонала в компанию. Целью настоящего исследования является анализ вопросов, связанных с внедрением автоматизированных систем подбора персонала, в том числе прескрининга. Для достижения поставленной цели в статье решены задачи: проанализирован опыт использования компаниями автоматизированных систем подбора персонала; показано, как наличие автоматизированной системы влияет на эффективность подбора; рассмотрены автоматизированные системы для подбора персонала, используемые в российских и зарубежных компаниях; выделен и описан такой метод подбора кандидатов, как прескрининг; описано сравнение процедур стандартного подбора по резюме и прескрининга. В результате исследования сделан вывод об эффективности внедрения автоматизированных систем подбора персоналом. При подготовке данной работы был изучен опыт российских и зарубежных компаний в области внедрения автоматизации в процесс подбора персонала.
Structural Basis for Ribosomal Stereo-selectivity and Action of Ribosome-targeting Antibiotics
Creators: name: Batool, Zahra
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Uncategorized

description: The ribosome is a molecular machine that synthesizes all cellular proteins in a template dependent manner, catalyzing the peptide bond formation reaction between L-amino acids. While many small molecules have been developed to inhibit protein translation, the translational machinery may also encounter non-productive substrates, D-amino acids, that need to be regularly weeded out. Remarkably, the ribosome has evolved a preference for L-amino acids, over D-amino acids and is stereo-selective. This work utilizes a structural approach to provide a fundamental understanding the response of the ribosome to atypical occupiers, antibiotics, that block translation, and D-amino acyl tRNAs, that are excluded from protein synthesis. More specifically, we discuss the molecular mechanism of action of derivatives from 2 popular classes of antibiotics, namely, tetracylines and amphenicols, sarecycline (targeting the 30S subunit), CAM-BER (targeting the 50S subunit), respectively. Moreover, this work also examines the molecular basis for ribosomal stereo-specificity. The mechanistic insights into the functioning of the ribosome when faced with ribosome targeting antibiotics, or D-amino acids which can help guide rational drug design and provide a fundamental understanding of how the ribosome distinguishes between D- and L- amino acids.
Observation of a phononic higher-order Weyl semimetal
Creators: name: Luo, Li
name: Wang, Hai-Xiao
name: Jiang, Bin
name: Wu, Ying
name: Lin, Zhi-Kang
name: Li, Feng
name: Jiang, Jian-Hua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Weyl semimetals are extraordinary systems where exotic phenomena such as Fermi arcs, pseudo-gauge fields and quantum anomalies arise from topological band degeneracy in crystalline solids for electrons and metamaterials for photons and phonons. On the other hand, higher-order topological insulators unveil intriguing multidimensional topological physics beyond the conventional bulk-edge correspondences. However, it is unclear whether higher-order topology can emerge in Weyl semimetals. Here, we report the experimental discovery of higher-order Weyl semimetals in its phononic analog which exhibit topologically-protected boundary states in multiple dimensions. We create the physical realization of the higher-order Weyl semimetal in a chiral phononic crystal with uniaxial screw symmetry. Using near-field spectroscopies, we observe the chiral Fermi arcs on the surfaces and a new type of hinge arc states on the hinge boundaries. These topological boundary arc states link the projections of Weyl points in different dimensions and directions, and hence demonstrate higher-order multidimensional topological physics in Weyl semimetals. Our study establishes the fundamental connection between higher-order topology and Weyl physics in crystalline materials and unveils a new horizon of higher-order topological semimetals where unprecedented materials such as higher-order topological nodal-lines may emerge.
Regeneration of Airy pulses in fiber-optic links with dispersion management of the two leading dispersion terms of opposite signs
Creators: name: Driben, R.
name: Meier, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Dispersion management of periodically alternating fiber sections with opposite signs of two leading dispersion terms is applied for the regeneration of self-accelerating truncated Airy pulses. It is demonstrated that for such a dispersion management scheme, the direction of the acceleration of the pulse is reversed twice within each period. In this scheme the system features light hot spots in the center of each fiber section, where the energy of the light pulse is tightly focused in a short temporal slot. Comprehensive numerical studies demonstrate a long lasting propagation also under the influence of a strong fiber Kerr nonlinearity.
description: To appear in Physical Review A
$T\overline{T}$ deformation in SCFTs and integrable supersymmetric theories
Creators: name: Ebert, Stephen
name: Sun, Hao-Yu
name: Sun, Zhengdi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the $\mathcal{S}$-multiplets for two-dimensional Euclidean $\mathcal{N}=(0,2)$ and $\mathcal{N} = (2,2)$ superconformal field theories under the $T\overline{T}$ deformation at leading order of perturbation theory in the deformation coupling. Then, from these $\mathcal{N} = (0, 2)$ deformed multiplets, we calculate two- and three-point correlators. We show the $\mathcal{N} = (0,2)$ chiral ring's elements do not flow under the $T\overline{T}$ deformation. Specializing to integrable supersymmetric seed theories, such as $\mathcal{N} = (2,2)$ Landau-Ginzburg models, we use the thermodynamic Bethe ansatz to study the S-matrices and ground state energies. From both an S-matrix perspective and Melzer's folding prescription, we show that the deformed ground state energy obeys the inviscid Burgers' equation. Finally, we show that several indices independent of $D$-term perturbations including the Witten index, Cecotti-Fendley-Intriligator-Vafa index and elliptic genus do not flow under the $T\overline{T}$ deformation.
description: 46 pages; v2 published version; v3 typos fixed
Dark Matter In Disk Galaxies II: Density Profiles as Constraints on Feedback Scenarios
Creators: name: Hague, Peter R
name: Wilkinson, Mark I
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The disparity between the density profiles of galactic dark matter haloes predicted by dark matter only cosmological simulations and those inferred from rotation curve decomposition, the so-called cusp-core problem, suggests that baryonic physics has an impact on dark matter density in the central regions of galaxies. Feedback from black holes, supernovae and massive stars may each play a role by removing matter from the centre of the galaxy on shorter timescales than the dynamical time of the dark matter halo. Our goal in this paper is to determine constraints on such feedback scenarios based on the observed properties of a set of nearby galaxies. Using a Markov Chain Monte Carlo (MCMC) analysis of galactic rotation curves, via a method developed in a previous paper, we constrain density profiles and an estimated minimum radius for baryon influence, $r_1$, which we couple with a feedback model to give an estimate of the fraction of matter within that radius that must be expelled to produce the presently observed halo profile. We show that in the case of the gas rich dwarf irregular galaxy DDO 154, an outflow from a central source (e.g. a black hole or star forming region) could produce sufficient feedback on the halo without removing the disk gas. We examine the rotation curves of 8 galaxies taken from the THINGS data set and determine constraints on the radial density profiles of their dark matter haloes. For some of the galaxies, both cored haloes and cosmological $ρ\propto r^{-1}$ cusps are excluded. These intermediate central slopes require baryonic feedback to be finely tuned. We also find for galaxies which exhibit extended cores in their haloes (e.g. NGC 925), the use of a split power-law halo profile yields models without the unphysical, sharp features seen in models based on the Einasto profile.
description: 17 pages, 19 figures Submitted to MNRAS
The Role of Annexin A1 in Insulin Resistance and in Pancreatitis
Creators: name: Akasheh, Rand Talal
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Uncategorized

description: Background: Annexin A1 (ANXA1) is a glucocorticoid-regulated protein, known for its anti-inflammatory effects1. Possible roles of this protein in glucocorticoid-induced metabolic alterations and in pancreatitis were never investigated. The general aim of this dissertation is to evaluate the effect of ANXA1 deficiency on markers of glucose metabolism and corticosterone levels in a mouse model of glucocorticoid-induced insulin resistance, and on markers of inflammation and pancreatic pathology in a mouse model of cerulein-induced acute and chronic pancreatitis. Glucocorticoid-induced hormonal and metabolic alterations: Male BALBc wild type (WT) and ANXA1 knockout (KO) mice were given regular drinking water or dexamethasone in water at a dose of .3 mg/Kg. Insulin and glucose tolerance tests were conducted after 10 days of the treatment. Feces were collected at multiple time points to measure corticosterone and metabolites through ELISA method. Mice were fasted and sacrificed two weeks after the treatment and glucose and insulin were measured through ELISA. Liver and adipose tissues were collected to study the gene expression of gluconeogenic enzymes and Adipokines, respectively, through PCR. In a separate experiment, mice were treated with 5 IU/Kg of insulin then sacrificed after 10 minutes. Liver, muscle and adipose tissue were collected to study insulin signaling by western blotting. In a third experiment, mice were given ip injections of either PBS or .3 mg/Kg of dexamethasone then sacrificed an hour later. Insulin and other hormones were measured through ELISA. Our findings indicate that chronic dexamethasone induced insulin resistance in WT but not in ANXA1 KO mice. Dexamethasone downregulated liver and muscle AKT phosphorylation on serine in WT mice, but this affect was absent in ANXA1 KO mice. Moreover, dexamethasone acutely suppressed insulin levels in WT but not in ANXA1 KO mice. Overall, this indicates that ANXA1 mediates glucocorticoid-induced hormonal and metabolic changes. Acute and chronic pancreatitis: Acute pancreatitis was induced by treating female BALBc WT and ANXA1 KO mice with 8 and 5 ip injections of PBS or cerulein at a dose of 50 μg/Kg. The same dose of 5 cerulein injections were given twice a week for 5 weeks to induce chronic pancreatitis. Serum Interleukin (IL)-6 and IL-10 were measured through ELISA. Histological markers of pancreatic inflammation and fibrosis were evaluated by H&E and Sirius red staining. Our findings indicate that ANXA1 deficient mice express higher IL-6 induction in acute pancreatitis and higher pancreatic fibrosis in chronic pancreatitis. Conclusion: ANXA1 is an important mediator of the metabolic and hormonal effects of glucocorticoids. Moreover, ANXA1 modulates systemic inflammation in acute pancreatitis and protect from fibrosis in chronic pancreatitis.
РАЗРАБОТКА МОДЕЛИ ИНФОРМАЦИОННОГО МЕНЕДЖМЕНТА КОМПАНИИ НА ОСНОВЕ ТЕХНОЛОГИЙ ЛИДЕРСТВА В УСЛОВИЯХ ЦИФРОВИЗАЦИИ ЭКОНОМИКИ
Creators: name: БУЛАТЕЦКАЯ АЛЕНА ЮРЬЕВНА
Publisher: name: Московский экономический журнал
Year: 2020
Subjects: ИНФОРМАЦИОННЫЙ МЕНЕДЖМЕНТ
ИНФОРМАЦИОННАЯ ИНФРАСТРУКТУРА
ЛИДЕРСТВО
КОНЦЕПЦИИ ЛИДЕРСТВА
ИНФОРМАЦИОННЫЙ СЕКТОР ЭКОНОМИКИ
ЦИФРОВИЗАЦИЯ ЭКОНОМИКИ
INFORMATION MANAGEMENT
INFORMATION INFRASTRUCTURE
LEADERSHIP
LEADERSHIP CONCEPTS
INFORMATION SECTOR OF THE ECONOMY
DIGITALIZATION OF THE ECONOMY

description: В статье проводится анализ особенностей информационного менеджмента и оценка его роли в цифровой трансформации компаний. Рассматривается феномен лидерства с точки зрения управленческой технологии информационного обеспечения организационной среды компании. Предлагается управленческий инструментарий развития компаний информационного сектора экономики на основе технологий лидерства. Разработаны модели информационного менеджмента и структуры информационной культуры компании в условиях цифровизации экономики.
A Stasis Network Methodology to Reckon with the Rhetorical Process of Data: How a Data Team Qualified Meaning and Practices
Creators: name: Lindgren, Chris A.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Prior scholarship argues that facts derived from data are not separate from their contexts and values. In this study of a data journalism team, I define and apply a sociotechnical network approach to stasis that maps their rhetorical actions with their quantitative work. The stasis network methodology identified how their process confronted competing definitions of metrics, which impacted their sense of what was significant and ethically possible, when developing the goals for their report.
title: Цифровизация  технологических процессов в управлении производством молока
Creators: name: Афанасьева, Евгения
name: Ефимова, Дарья
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2020

description: В настоящее время многие производители молока и молочной продукции всё более широко применяют современные автоматизированные и роботизированные технические средства выполнения технологических процессов.
Drift in local sensor data
Creators: name: Schmücker, Dirk
name: Staubert, Tim
name: Reif, Julian
Publisher: name: AIR project
Year: 2023
Subjects: visitor management
parking sensors
data accuracy

description: Data from automated sensors measuring parking lot occupancy are examined.
Data come from eight different touristic parking areas in Germany.
Manual counts were performed to validate automatic sensor data.
Data show unsystematic and erratic drifts in the counts, leading to inaccurate occupancy data.
Without further correction, data from sensors cannot be used for tourism recommender systems.
Maximizing the Minimum and Maximum Forcing Numbers of Perfect Matchings of Graphs
Creators: name: Liu, Qian qian
name: Zhang, He ping
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $G$ be a simple graph with $2n$ vertices and a perfect matching. The forcing number $f(G,M)$ of a perfect matching $M$ of $G$ is the smallest cardinality of a subset of $M$ that is contained in no other perfect matching of $G$. Among all perfect matchings $M$ of $G$, the minimum and maximum values of $f(G,M)$ are called the minimum and maximum forcing numbers of $G$, denoted by $f(G)$ and $F(G)$, respectively. Then $f(G)\leq F(G)\leq n-1$. Che and Chen (2011) proposed an open problem: how to characterize the graphs $G$ with $f(G)=n-1$. Later they showed that for a bipartite graph $G$, $f(G)=n-1$ if and only if $G$ is a complete bipartite graph $K_{n,n}$. In this paper, we completely solve the problem of Che and Chen, and show that $f(G)=n-1$ if and only if $G$ is a complete multipartite graph or a graph obtained from complete bipartite graph $K_{n,n}$ by adding arbitrary edges in the same partite set. For all graphs $G$ with $F(G)=n-1$, we prove that the forcing spectrum of each such graph $G$ forms an integer interval by matching 2-switches and the minimum forcing numbers of all such graphs $G$ form an integer interval from $\lfloor\frac{n}{2}\rfloor$ to $n-1$.