cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Discriminative Semantic Ranker for Question Retrieval
Creators: name: Cai, Yinqiong
name: Fan, Yixing
name: Guo, Jiafeng
name: Zhang, Ruqing
name: Lan, Yanyan
name: Cheng, Xueqi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Similar question retrieval is a core task in community-based question answering (CQA) services. To balance the effectiveness and efficiency, the question retrieval system is typically implemented as multi-stage rankers: The first-stage ranker aims to recall potentially relevant questions from a large repository, and the latter stages attempt to re-rank the retrieved results. Most existing works on question retrieval mainly focused on the re-ranking stages, leaving the first-stage ranker to some traditional term-based methods. However, term-based methods often suffer from the vocabulary mismatch problem, especially on short texts, which may block the re-rankers from relevant questions at the very beginning. An alternative is to employ embedding-based methods for the first-stage ranker, which compress texts into dense vectors to enhance the semantic matching. However, these methods often lose the discriminative power as term-based methods, thus introduce noise during retrieval and hurt the recall performance. In this work, we aim to tackle the dilemma of the first-stage ranker, and propose a discriminative semantic ranker, namely DenseTrans, for high-recall retrieval. Specifically, DenseTrans is a densely connected Transformer, which learns semantic embeddings for texts based on Transformer layers. Meanwhile, DenseTrans promotes low-level features through dense connections to keep the discriminative power of the learned representations. DenseTrans is inspired by DenseNet in computer vision (CV), but poses a new way to use the dense connectivity which is totally different from its original design purpose. Experimental results over two question retrieval benchmark datasets show that our model can obtain significant gain on recall against strong term-based methods as well as state-of-the-art embedding-based methods.
description: ICTIR'21
Signature of a heliotail organized by the solar magnetic field and the role of non-ideal processes in modeled IBEX ENA maps: a comparison of the BU and Moscow MHD models
Creators: name: Kornbleuth, M.
name: Opher, M.
name: Baliukin, I.
name: Dayeh, M. A.
name: Zirnstein, E.
name: Gkioulidou, M.
name: Dialynas, K.
name: Galli, A.
name: Richardson, J. D.
name: Izmodenov, V.
name: Zank, G. P.
name: Fuselier, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Energetic neutral atom (ENA) models typically require post-processing routines to convert the distributions of plasma and H atoms into ENA maps. Here we investigate how two different kinetic-MHD models of the heliosphere (the BU and Moscow models) manifest in modeled ENA maps using the same prescription and how they compare with Interstellar Boundary Explorer (IBEX) observations. Both MHD models treat the solar wind as a single-ion plasma for protons, which include thermal solar wind ions, pick-up ions (PUIs), and electrons. Our ENA prescription partitions the plasma into three distinct ion populations (thermal solar wind, PUIs transmitted and ones energized at the termination shock) and models the populations with Maxwellian distributions. Both kinetic-MHD heliospheric models produce a heliotail with heliosheath plasma organized by the solar magnetic field into two distinct north and south columns that become lobes of high mass flux flowing down the heliotail, though in the BU model the ISM flows between the two lobes at distances in the heliotail larger than 300 AU. While our prescription produces similar ENA maps for the two different plasma and H atom solutions at the IBEX-Hi energy range (0.5 - 6 keV), the modeled ENA maps require a scaling factor of ~2 to be in agreement with the data. This problem is present in other ENA models with the Maxwellian approximation of multiple ion species and indicates that a higher neutral density or some acceleration of PUIs in the heliosheath is required.
description: 29 pages, 3 tables, 9 figures, accepted to ApJ
ELITANING TEXNO-DETERMENISTIK ASOSLARI. IJTIMOIY O'ZGARISHLARNI O'ZIDA AKS ETTIRGA JAMIYAT TURLATI
Creators: name: Xamidova Xosiyat Rixsitilla qizi Ilmiy rahbar: DocS K.M Mirzaaxmedov Mirzo  Ulug`bek  nomidagi  O`zbekiston Milliy universiteti Ijtimoiy fanlar fakulteti Siyosatshunoslik kafedrasi Siyosatshunoslik yo`nalishi  3^B- kurs  talabasi
Publisher: name: Zenodo
Year: 2023

description: Texnologik-determenizm mohiyati. Siyosi elitaning texno-determenistik asoslari. A. Tofflerning super industrial jamiyat g‘oyalari
Aluminium-26 from massive binary stars II. Rotating single stars up to core-collapse and their impact on the early Solar System
Creators: name: Brinkman, Hannah E.
name: Hartogh, J. W. den
name: Doherty, C. L.
name: Pignatari, M.
name: Lugaro, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Radioactive nuclei were present in the early Solar System, as inferred from analysis of meteorites. Many are produced in massive stars, either during their lives or their final explosions. In the first paper in this series (Brinkman et al. 2019), we focused on the production of $^{26}$Al in massive binaries. Here, we focus on the production of another two short-lived radioactive nuclei, $^{36}$Cl and $^{41}$Ca, and the comparison to the early Solar System data. We used the MESA stellar evolution code with an extended nuclear network and computed massive (10-80 M$ _{\odot} $), rotating (with initial velocities of 150 and 300 km/s) and non-rotating single stars at solar metallicity (Z=0.014) up to the onset of core collapse. We present the wind yields for the radioactive isotopes $^{26}$Al, $^{36}$Cl, and $^{41}$Ca, and the stable isotopes $^{19}$F and $^{20}$Ne. In relation to the stable isotopes, we find that only the most massive models, $\geq$ 60M$_{\odot}$ and $\geq$ 40M$_{\odot}$ give positive $^{19}$F and $^{20}$Ne yields, respectively, depending on the initial rotation rate. In relation to the radioactive isotopes, we find that the early Solar System abundances of $^{26}$Al and $^{41}$Ca can be matched with by models with initial masses $\geq$40M$_{\odot}$, while $^{36}$Cl is matched only by our most massive models, $\geq$60M$_{\odot}$. $^{60}$Fe is not significantly produced by any wind model, as required by the observations. Therefore, massive star winds are a favoured candidate for the origin of the very short-lived $^{26}$Al, $^{36}$Cl, and $^{41}$Ca in the early Solar System.
description: 18 pages, 8 figures, 3 tables
Evaluating Serverless Architecture for Big Data Enterprise Applications
Creators: name: Bhat, Aimer
name: Roy, Madhumonti
name: Park, Heeki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: In this paper, we investigate serverless computing for performing large scale data processing with cloudnative primitives.
description: 8 pages
Microquasars: summary and outlook
Creators: name: Mirabel, I. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Microquasars are compact objects (stellar-mass black holes and neutron stars) that mimic, on a smaller scale, many of the phenomena seen in quasars. Their discovery provided new insights into the physics of relativistic jets observed elsewhere in the universe, and in particular, the accretion-jet coupling in black holes. Microquasars are opening new horizons for the understanding of ultraluminous X-ray sources observed in external galaxies, gamma-ray bursts of long duration, and the origin of stellar black holes and neutron stars. Microquasars are one of the best laboratories to probe General Relativity in the limit of the strongest gravitational fields, and as such, have become an area of topical interest for both high energy physics and astrophysics. At present, back hole astrophysics exhibits historical and epistemological similarities with the origins of stellar astrophysics in the last century.
description: 14 pages, 7 figures, To appear in Belloni, T. (ed.): The Jet Paradigm - From Microquasars to Quasars, Lect. Notes Phys. 794 (2009)
Static-light meson masses from twisted mass lattice QCD
Creators: name: ETM Collaboration
name: Jansen, Karl
name: Michael, Chris
name: Shindler, Andrea
name: Wagner, Marc
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We compute the static-light meson spectrum using two-flavor Wilson twisted mass lattice QCD. We have considered five different values for the light quark mass corresponding to 300 MeV < m_PS < 600 MeV. We have extrapolated our results, to make predictions regarding the spectrum of B and B_s mesons.
description: 7 pages, 2 figures, talk given at the XXVI International Symposium on Lattice Field Theory, July 14 - 19 2008, Williamsburg, Virginia, USA
Subcellular localization of adenylate cyclase in canine heart ventricle
Creators: name: Dobovicnik, Bernhard Karl
Publisher: name: University of British Columbia
Year: 2010

description: Crude microsomal fractions (resuspended in 10% sucrose) of dog heart ventricles were subjected to discontinuous sucrose density gradient centrifugation in order to obtain purified fractions that were enriched in sarcoplasmic reticulum (S.R.) and contained a relatively lower concentration of plasma membrane than the crude fraction. It was observed that the fraction with the highest oxalate- supported Ca²⁺-uptake activity contained an adenylate cyclase activity. The main objectives of this study were to refine the technique of isolation of this pure microsomal fraction and to compare the properties of its indigenous adenylate cyclase activity to that contained in a sarcolemma-enriched "washed particle" fraction (Drummond, 1978). It was found that the enzyme found in the S.R.—enriched fraction differed from that in the "washed particle" preparation in that it: a) was stimulated by 10⁻⁴M epinephrine in a calcium-dependent manner; b) was significantly more stimulated by high Mg²⁺/ATP ratios; c) was more sensitive to inhibition by free calcium ion in the presence of epinephrine. French-press treatment of the microsomes before sucrose density gradient fractionation reduced plasma membrane contamination without a concomitant decrease in cyclic AMP accumulating ability. These findings are consistent with and complement the hypothesis that cardiac cell sarcoplasmic reticulum contains an adenylate cyclase activity that is not accounted for by sarcolemmal impurities in the preparations studied and that exhibits functional characteristics different from the sarcolemmal adenylate cyclase.
Iterative Teacher-Aware Learning
Creators: name: Yuan, Luyao
name: Zhou, Dongruo
name: Shen, Junhong
name: Gao, Jingdong
name: Chen, Jeffrey L.
name: Gu, Quanquan
name: Wu, Ying Nian
name: Zhu, Song-Chun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: In human pedagogy, teachers and students can interact adaptively to maximize communication efficiency. The teacher adjusts her teaching method for different students, and the student, after getting familiar with the teacher's instruction mechanism, can infer the teacher's intention to learn faster. Recently, the benefits of integrating this cooperative pedagogy into machine concept learning in discrete spaces have been proved by multiple works. However, how cooperative pedagogy can facilitate machine parameter learning hasn't been thoroughly studied. In this paper, we propose a gradient optimization based teacher-aware learner who can incorporate teacher's cooperative intention into the likelihood function and learn provably faster compared with the naive learning algorithms used in previous machine teaching works. We give theoretical proof that the iterative teacher-aware learning (ITAL) process leads to local and global improvements. We then validate our algorithms with extensive experiments on various tasks including regression, classification, and inverse reinforcement learning using synthetic and real data. We also show the advantage of modeling teacher-awareness when agents are learning from human teachers.
Weyl asymptotics for magnetic Schrödinger operators and de Gennes' boundary condition
Creators: name: Kachmar, Ayman
Publisher: name: arXiv
Year: 2007
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 81Q10 (Primary); 35J10, 35P15, 82D55 (Secondary)

description: This paper is concerned with the discrete spectrum of the self-adjoint realization of the semi-classical Schrödinger operator with constant magnetic field and associated with the de Gennes (Fourier/Robin) boundary condition. We derive an asymptotic expansion of the number of eigenvalues below the essential spectrum (Weyl-type asymptotics). The methods of proof relies on results concerning the asymptotic behavior of the first eigenvalue obtained in a previous work [A. Kachmar, J. Math. Phys. Vol. 47 (7) 072106 (2006)].
description: 28 pages (revised version). to appear in Rev Math Phys
Influence of an external magnetic field on the decoherence of a central spin coupled to an antiferromagnetic environment
Creators: name: Yuan, Xiao-Zhong
name: Goan, Hsi-Sheng
name: Zhu, Ka-Di
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using the spin wave approximation, we study the decoherence dynamics of a central spin coupled to an antiferromagnetic environment under the application of an external global magnetic field. The external magnetic field affects the decoherence process through its effect on the antiferromagnetic environment. It is shown explicitly that the decoherence factor which displays a Gaussian decay with time depends on the strength of the external magnetic field and the crystal anisotropy field in the antiferromagnetic environment. When the values of the external magnetic field is increased to the critical field point at which the spin-flop transition (a first-order quantum phase transition) happens in the antiferromagnetic environment, the decoherence of the central spin reaches its highest point. This result is consistent with several recent quantum phase transition witness studies. The influences of the environmental temperature on the decoherence behavior of the central spin are also investigated.
description: 29 preprint pages, 4 figures, to appear in New Journal of Physics
title: The mapping LGBTQ lives at NUI Galway - A pilot project
Creators: name: Coogan, Declan
name: Kinsella, Kylie
Publisher: name: School of Political Science and Sociology, NUI Galway
Year: 2021
Subjects: subject: LGBT+ Lives Galway
subject: partnerships
subject: human rights
subject: gender & sexual minority rights
subject: constructivist grounded theory study

description: The aim of this working paper is to seek feedback from participants in the research project and to invite comment/ discussion from members of the wider LGBT+ communities. We also invite responses from people who have experiences of partnerships between NUI Galway (or other higher education institutes) and members of the wider community to promote the rights of people who identify as part of sexual and gender minorities.
Fermi-gas interpretation of the RSOS path representation of the superconformal unitary minimal models
Creators: name: Jacob, P.
name: Mathieu, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We derive new finitized fermionic characters for the superconformal unitary minimal models by interpreting the RSOS configuration sums as fermi-gas partition functions. This extends to the supersymmetric case the method introduced by Warnaar for the Virasoro unitary mimimal models. The key point in this construction is the proper identification of fermi-type charged particles in terms of the path's peaks. For this, an instrumental preliminary step is the adaptation to the superconformal case of the operator description of the usual RSOS paths introduced recently.
description: 29 pages, minor corrections, one reference added; version to appear in Nucl.Phys.B
Monte Carlo studies of extensions of the Blume-Emery-Griffiths model
Creators: name: Loois, C. C.
name: Barkema, G. T.
name: Smith, C. Morais
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We extend the Blume-Emery-Griffiths (BEG) model to a two-component BEG model in order to study 2D systems with two order parameters, such as magnetic superconductors or two-component Bose-Einstein condensates. The model is investigated using Monte Carlo simulations, and the temperature-concentration phase diagram is determined in the presence and absence of an external magnetic field. This model exhibits a rich phase diagram, including a second-order transition to a phase where superconductivity and magnetism coexist. Results are compared with experiments on Cerium-based heavy-fermion superconductors. To study cold atom mixtures, we also simulate the BEG and two-component BEG models with a trapping potential. In the BEG model with a trap, there is no longer a first order transition to a true phase-separated regime, but a crossover to a kind of phase-separated region. The relation with imbalanced fermi-mixtures is discussed. We present the phase diagram of the two-component BEG model with a trap, which can describe boson-boson mixtures of cold atoms. Although there are no experimental results yet for the latter, we hope that our predictions could help to stimulate future experiments in this direction.
description: 9 pages, 12 figures
DeHumor: Visual Analytics for Decomposing Humor
Creators: name: Wang, Xingbo
name: Ming, Yao
name: Wu, Tongshuang
name: Zeng, Haipeng
name: Wang, Yong
name: Qu, Huamin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences
subject: I.2.7; I.7.0; H.4.2; J.4

description: Despite being a critical communication skill, grasping humor is challenging -- a successful use of humor requires a mixture of both engaging content build-up and an appropriate vocal delivery (e.g., pause). Prior studies on computational humor emphasize the textual and audio features immediately next to the punchline, yet overlooking longer-term context setup. Moreover, the theories are usually too abstract for understanding each concrete humor snippet. To fill in the gap, we develop DeHumor, a visual analytical system for analyzing humorous behaviors in public speaking. To intuitively reveal the building blocks of each concrete example, DeHumor decomposes each humorous video into multimodal features and provides inline annotations of them on the video script. In particular, to better capture the build-ups, we introduce content repetition as a complement to features introduced in theories of computational humor and visualize them in a context linking graph. To help users locate the punchlines that have the desired features to learn, we summarize the content (with keywords) and humor feature statistics on an augmented time matrix. With case studies on stand-up comedy shows and TED talks, we show that DeHumor is able to highlight various building blocks of humor examples. In addition, expert interviews with communication coaches and humor researchers demonstrate the effectiveness of DeHumor for multimodal humor analysis of speech content and vocal delivery.
description: 15 pages. A preprint version of a publication at IEEE Transactions on Visualization and Computer Graphics (TVCG), 2021
A twelve-image gravitational lens system in the z ~ 0.84 cluster Cl J0152.7-1357
Creators: name: Grillo, C.
name: Lombardi, M.
name: Rosati, P.
name: Bertin, G.
name: Gobat, R.
name: Demarco, R.
name: Lidman, C.
name: Motta, V.
name: Nonino, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Gravitational lens modeling is presented for the first discovered example of a three-component source for which each component is quadruply imaged. The lens is a massive galaxy member of the cluster Cl J0152.7-1357 at z ~ 0.84. Taking advantage of this exceptional configuration and of the excellent angular resolution of the HST/ACS, we measure the properties of the lens. Several parametric macroscopic models were developed for the lens galaxy, starting from pointlike to extended image models. For a lens model in terms of a singular isothermal sphere with external shear, the Einstein radius is found to be R_{E} = (9.54 +/- 0.15) kpc. The external shear points to the cluster's northern mass peak. The unknown redshift of the source is determined to be higher than 1.9 and lower than 2.9. Our estimate of the lensing projected total mass inside the Einstein radius, M_{len}(R < 9.54 kpc), depends on the source distance and lies between 4.6 and 6.2 x 10^{11} M_{Sun}. This result turns out to be compatible with the dynamical estimate based on an isothermal model. By considering the constraint on the stellar mass-to-light ratio that comes from the evolution of the Fundamental Plane, we can exclude the possibility that at more than 4 sigma level the total mass enclosed inside the Einstein ring is only luminous matter. Moreover, the photometric-stellar mass measurement within the Einstein radius gives a minimum value of 50% (1 sigma) for the dark-to-total matter fraction. The lensing analysis has allowed us to investigate the distribution of mass of the deflector, also providing some interesting indications on scales that are larger and smaller than the Einstein radius of the lens galaxy. The combination of different diagnostics has proved to be essential in determining quantities that otherwise would have not been directly measurable with the current data.
description: 10 pages, 9 figures, accepted by Astronomy & Astrophysics
Dynamic facilitation explains democratic particle motion of metabasin transitions
Creators: name: Hedges, Lester O.
name: Garrahan, Juan P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Transitions between metabasins in supercooled liquids seem to occur through rapid "democratic" collective particle rearrangements. Here we show that this apparent homogeneous particle motion is a direct consequence of dynamic facilitation. We do so by studying metabasin transitions in facilitated spin models and constrained lattice gases. We find that metabasin transitions occur through a sequence of locally facilitated events taking place over a relatively short time frame. When observed on small enough spatial windows these events appear sudden and homogeneous. Our results indicate that metabasin transitions are essentially "non-democratic" in origin and yet another manifestation of dynamical heterogeneity in glass formers.
description: 6 pages, 6 figures
Health state of patients provided with long-term home care in the Silesian and Lublin provinces: assessment on basis of Barthel's and Douglas' scales.
Creators: name: Stasiak, Elżbieta
name: Gałęziowska, Edyta
name: Domżał-Drzewicka, Renata
name: Humeniuk, Ewa
name: Niedzielski, Antoni
name: Błaziak, Przemysław
name: Stasiak, Karolina
name: Stanisławek, Andrzej
Publisher: name: Zenodo
Year: 2006

description: W: Środowiskowe źródła zagrożeń zdrowotnych. [T. 4]. Lublin 2007, Akad. Med, s. 1393-1397, bibliogr.

W: II Międzynarodowe Sympozjum Naukowe „Środowiskowe źródła zagrożeń zdrowotnych”. Kazimierz Dolny, 26-28 kwietnia 2007. T. 1.[Streszcz.] s. 444.
ИССЛЕДОВАНИЕ ПРОЦЕССА РЕАКЦИИ МЕСТНОГО СЫРЬЯ ТАЛЬК-МАГНЕЗИТА С СОЛЯНОЙ КИСЛОТОЙ ПРИ РАЗЛИЧНЫХ ТЕМПЕРАТУРАХ
Creators: name: Умиров Фарход Ергашович 1, Аслонов Аброр Бурхонович 2 Юлдашова Мафтуна Бахтиёр қизи3  1Доктор технических наук, профессор кафедры «Химическая технология» Навоийского государственного горно-технологического университета Республики Узбекистан, 210100, г. Навои, ул. М. Таробий 72. E-mail: Umirov3@yandex.ru 2Докторант кафедры «Химическая технология» Навоийского государственного горно-технологического университета, Республики Узбекистан, 210100,  г. Навои, ул. М. Таробий, 72.  E-mail: aslonov-abror@mail.ru 3Магистрант кафедры «Химическая технология» Навоийского государственного горно-технологического университета, Республики Узбекистан, 210100,  г. Навои, ул. М. Таробий, 72.
Publisher: name: Zenodo
Year: 2023

description: Среди дефолиантов в Узбекистане хлорат магния является одним из мягких дефолиантов. Промышленное производство хлората магния основано на взаимодействии хлората натрия с гексагидратом хлорида магния. Бишофит, импортируемый из Туркменистана, используется в качестве сырья для производства хлората магния в Узбекистане. По этой причине стоимость дефолианта из хлората магния, производимого в Узбекистане, очень высока. [1].Производство дефолианта хлората магния на основе местного сырья приводит к значительному снижению себестоимости сырья и рациональному использованию местного сырья.
Heat kernel estimates and spectral properties of a pseudorelativistic operator with magnetic field
Creators: name: Jakubassa-Amundsen, D. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81Q10

description: Based on the Mehler heat kernel of the Schroedinger operator for a free electron in a constant magnetic field an estimate for the kernel of E_A is derived, where E_A represents the kinetic energy of a Dirac electron within the pseudorelativistic no-pair Brown-Ravenhall model. This estimate is used to provide the bottom of the essential spectrum for the two-particle Brown-Ravenhall operator, describing the motion of the electrons in a central Coulomb field and a constant magnetic field, if the central charge is restricted to Z below or equal 86.
Microscopic self-consistent description of induced fission: dynamical pairing degree of freedom
Creators: name: Zhao, Jie
name: Nikšić, Tamara
name: Vretenar, Dario
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The role of dynamical pairing in induced fission dynamics is investigated using the time-dependent generator coordinate method in the Gaussian overlap approximation, based on the microscopic framework of nuclear energy density functionals. A calculation of fragment charge yields for induced fission of $^{228}$Th is performed in a three-dimensional space of collective coordinates that, in addition to the axial quadrupole and octupole intrinsic deformations of the nuclear density, also includes an isoscalar pairing degree of freedom. It is shown that the inclusion of dynamical pairing has a pronounced effect on the collective inertia, the collective flux through the scission hyper-surface, and the resulting fission yields, reducing the asymmetric peaks and enhancing the contribution of symmetric fission, in better agreement with the empirical trend.
description: 8 pages, 6 figures. arXiv admin note: text overlap with arXiv:2004.10089
The Shaky Social Citizenship of Early-Career Independent Professionals: Work Transformation, Career and Life Uncertainty, Unrepresented Rights
Creators: name: Cavalca, Guido
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: The combination of a segmented and flexible labour market and a fragmented welfare system has given rise to an unprecedented risk of uncertainty for the new generation of independent professionals. Independent self-employment frequently conceals precarious working conditions, low wages and limited protection; tasks, knowledge, networking and creativity are deteriorating, with an evident decline in autonomy often leading to entrapment in poor occupational careers. A qualitative research, involving 72 early-career I-Pros in Milan, argues that the new generation of professionals is undergoing a crisis of social citizenship – since social integration through labour market inclusion, structured representation of interests, welfare protection, are lacking – and it is also showing a “culture of uncertainty”, a day-by-day approach to life and career. Beyond a group of fully integrated I-Pros, most professionals show to suffer from economic and work vulnerability as well as relational fragility, whereas the weakest part of interviewed I-Pros experiences social and professional vulnerability, strong isolation at work and renunciation of personal objectives.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol 8 No 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
Gender Barriers at Work: A Comparison Between Women Train Drivers and Women Garage Mechanics in Spain
Creators: name: Maira-Vidal, Maria Del Mar
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: Occupational segregation persists despite continuous promotion of equal opportunity policies. This article describes various barriers that have stood in the way of women train drivers’ and women motor vehicle mechanics’ entering and remaining in employment. The results are based on case studies of these two occupations in Spain and primarily on the analysis of in-depth interviews of female and male employees in these occupations. The comparison is justified because of the companies’ similarities in terms of underrepresentation and yet their dissimilar organisation in terms of both size and management style. The findings indicate the presence of at least two types of obstacles: 1) explicit barriers related to personnel selection and the material characteristics of workplaces; and 2) implicit barriers associated with attitudes and practices in the relationships between the minority of women workers and the male majority.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol 8 No 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
La paura della morte
Creators: name: Elias, Norbert
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: Traduciamo qui l’intervento a una conferenza che Norbert Elias fece nel 1986 a Groningen. Il testo è stato poi pubblicato nel 1990, nel libro Concept of Person in Religion and Thought, a cura di H.G. Kippenberg, Y.B. Kuiperand e A.F. Sanders. La versione che qui traduciamo è quella contenuta in Collected Works, vol. 15, a cura di R. Kilminster e S. Mennell, 2008, pp. 256-266. ©2008 Norbert Elias Foundation, Amsterdam. Desideriamo ringraziare i colleghi del Norbert Elias Stitching per il permesso di tradurre e pubblicare questo scritto.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol 8 No 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
Search for new physics in photon and jet final states
Creators: name: Jaffré, Michel
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Results from the CDF and D0 collaborations from searches of physics beyond the standard model are presented in reactions involving high transverse momentum photons or jets in their final states.
description: Latex, 6 pages, 11 eps figures
Non-extensive statistical distributions of charmed meson production in Pb-Pb and pp($\overline{\text{p}}$) collisions
Creators: name: Su, Yuan
name: Chen, Xiaolong
name: Sun, Yongjie
name: Zhang, Yifei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: J.2.9
subject: 70-10

description: The mid-rapidity transverse-momentum spectra of charmed meson in Pb-Pb and pp($\overline{\text{p}}$) collisions are analyzed by Tsallis-Pareto distribution derived from non-extensive statistics. We perform uniform descriptions for both small and large systems over a wide range of collision energy and hadron transverse momentum. By establishing the relation between the event multiplicity and the Tsallis parameters, we observe that there is significant linearity between thermal temperature and Tsallis-q parameter in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV and 5.02 TeV. And the slope of the T $-$ (q - 1) parameter is positively correlated with the hadron mass. In addition, the charm mesons have higher thermal temperature than the light hadrons at the same q - 1, indicating that charmed flavor requires a higher temperature to achieve the same degree of non-extensive as light flavors in the heavy-ion collision. The same fit is performed to the transverse momentum spectra of charmed meson in pp($\overline{\text{p}}$) collision over a large energy range with Tsallis-Pareto distribution. It is found that the thermal temperature increases with system energy while the q parameter shows a saturated trend and stops at pp($\overline{\text{p}}$) limit, q - 1 = 0.142 $\pm$ 0.010. Meanwhile, the results of most peripheral Pb-Pb collisions are found to approach the pp($\overline{\text{p}}$) limit, which suggests that less medium effect and more in similarity with pp($\overline{\text{p}}$) collisions are found in more peripheral heavy-ion collisions.
description: 8 pages, 6 captioned figures, 2 tables
Corrigendum: Diatom transcriptional and physiological responses to changes in iron bioavailability across ocean provinces
Creators: name: Ellis, Kelsey A.
name: Kuzminov, Fedor I.
name: Till, Claire P.
name: Maldonado, Maria T.
name: Thamatrakoln, Kimberlee
name: Marchetti, Adrian
name: Twining, Benjamin S.
name: Sunda, William G.
name: Cohen, Natalie R.
name: Brzezinski, Mark A.
name: Lampe, Robert H.
name: Bargu, Sibel
name: McNair, Heather
name: Bruland, Kenneth W.
Publisher: name: Frontiers
Year: 2025

description:
Corrigendum to: "Diatom transcriptional and physiological responses to changes in iron bioavailability across ocean provinces"
Locality, detection efficiencies, and probability polytopes
Creators: name: Wilms, J.
name: Disser, Y.
name: Alber, G.
name: Percival, I. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a detailed investigation of minimum detection efficiencies, below which locality cannot be violated by any quantum system of any dimension in bipartite Bell experiments. Lower bounds on these minimum detection efficiencies are determined with the help of linear programming techniques. Our approach is based on the observation that any possible bipartite quantum correlation originating from a quantum state in an arbitrary dimensional Hilbert space is sandwiched between two probability polytopes, namely the local (Bell) polytope and a corresponding nonlocal no-signaling polytope. Numerical results are presented demonstrating the dependence of these lower bounds on the numbers of inputs and outputs of the bipartite physical system.
description: 8 pages, 5 figures, 1 table
Structure socio-culturelle et rapports de domination chez les Indiens Tutchone septentrionaux du Yukon au dix-neuvieme siecle
Creators: name: Legros, Dominique
Publisher: name: University of British Columbia
Year: 2010

description: La société tutchone (Yukon) du XIXe siècle reposait sur une économie de chasse, pêche et cueillette des plus élémentaires. Pourtant, selon la tradition orale autochtone contemporaine, elle connaissait une fprme de stratification avec division de la population en gens riches; pauvres et esclaves; un fait très rare dans les sociétés de ce genre. Ces données conduisent à s'interroger sur deux plans. D'une part, les rapports de domination/subordination évoqués ont-ils vraiment existes? Peut-on reconstituer l'ensemble de l'organisation socio-culturelle d'alors? D'autre part,ssi oui, comment s'explique le fait que certaines familles parvenaient à s'enrichir et à prendre quelques Tutchone en esclavage? Les chapitres II à VII sont consacrés aux premières interrogations. Ils montrent que les oui-dire des Tutchone contemporains correspondent sans aucun doute possible à des faits réels et qu'il est possible de reconstituer l'organisation socio-culturelle en s'aidant des connaissances des Tutchone et des données fournies par les premiers explorateurs blancs. Le chapitre VIII est consacré à la deuxième question. L'explication proposée est la suivante. Le mariage entre cousins germains croisés bilatéraux répété génération après génération produisait des ensembles pourvus d'emblée d'une forte cohésion. Par contre, le mariage entre simples cousins classificatoires croisés bilatéraux produisait des ensembles hétérogènes peu capables d'agir en commun. La possibilité de rapports de domination/subordination entre Tutchone provenait de cette dichotomie. Les ensembles rendus fortement cohésifs par la pratique du mariage entre cousins germains croisés détenaient le pouvoir de contraindre par la force les membres des ensembles humains désintégrés, en tant que groupes, par des unions entre cousins croisés classificatoires. Les ensembles cohésifs se servaient de cette marge de manoeuvre pour mettre en esclavage les Tutchone les plus isolés sur le plan social, pour s'arroger le contrôle du commerce et des zones écologiques, les meilleures.
Scaling and aging in the homogeneous cooling state of a granular fluid of hard particles
Creators: name: Brey, J. J.
name: Prados, A.
name: de Soria, M. I. Garcia
name: Maynar, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The presence of the aging phenomenon in the homogeneous cooling state (HCS) of a granular fluid composed of inelastic hard spheres or disks is investigated. As a consequence of the scaling property of the $N$-particle distribution function, it is obtained that the decay of the normalized two-time correlation functions slows down as the time elapsed since the beginning of the measurement increases. This result is confirmed by molecular dynamics simulations for the particular case of the total energy of the system. The agreement is also quantitative in the low density limit, for which an explicit analytical form of the time correlation function has been derived. The reported results also provide support for the existence of the HCS as a solution of the N-particle Liouville equation.
description: 17 pages, 3 figures; v3 revised version (minor changes, corrected typos, v2=v1 due to a submission error)accepted for publication in J. Phys. A: Math. Theor
Bilayer Quantum Hall States in an n-type Wide Tellurium Quantum Well
Creators: name: Niu, Chang
name: Qiu, Gang
name: Wang, Yixiu
name: Si, Mengwei
name: Wu, Wenzhuo
name: Ye, Peide D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Tellurium (Te) is a narrow bandgap semiconductor with a unique chiral crystal structure. The topological nature of electrons in the Te conduction band can be studied by realizing n-type doping using atomic layer deposition (ALD) technique on two-dimensional (2D) Te film. In this work, we fabricated and measured the double-gated n-type Te Hall-bar devices, which can operate as two separate or coupled electron layers controlled by the top gate and back gate. Profound Shubnikov-de Haas (SdH) oscillations are observed in both top and bottom electron layers. Landau level hybridization between two layers, compound and charge-transferable bilayer quantum Hall states at filling factor 4, 6, and 8 are analyzed. Our work opens the door for the study of Weyl physics in coupled bilayer systems of 2D materials.
description: Submitted to Nano Letters
An Integrated Widefield Probe for Practical Diamond Nitrogen-Vacancy Microscopy
Creators: name: Abrahams, G. J.
name: Scholten, S. C.
name: Healey, A. J.
name: Robertson, I. O.
name: Dontschuk, N.
name: Lim, S. Q.
name: Johnson, B. C.
name: Simpson, D. A.
name: Hollenberg, L. C. L.
name: Tetienne, J. -P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The widefield diamond nitrogen-vacancy (NV) microscope is a powerful instrument for imaging magnetic fields. However, a key limitation impeding its wider adoption is its complex operation, in part due to the difficulty of precisely interfacing the sensor and sample to achieve optimum spatial resolution. Here we demonstrate a solution to this interfacing problem that is both practical and reliably minimizes NV-sample standoff. We built a compact widefield NV microscope which incorporates an integrated widefield diamond probe with full position and angular control, and developed a systematic alignment procedure based on optical interference fringes. Using this platform, we imaged an ultrathin (1 nm) magnetic film test sample, and conducted a detailed study of the spatial resolution. We reproducibly achieved an estimated NV-sample standoff (and hence spatial resolution) of at most $\sim2~μ$m across a $\sim0.5$ mm field of view. Guided by these results, we suggest future improvements for approaching the optical diffraction limit. This work is a step towards realizing a widefield NV microscope suitable for routine high-throughput mapping of magnetic fields.
Search for high-energy neutrino emission from hard X-ray AGN with IceCube
Creators: name: Goswami, Sreetama
name: Privon, George C.
name: Santander, Marcos
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The IceCube Neutrino Observatory has detected high-energy astrophysical neutrinos in the TeV-PeV range. These neutrinos have an isotropic distribution on the sky, and therefore, likely originate from extragalactic sources. Active Galactic Nuclei form a class of astronomical objects which are promising neutrino source candidates given their high electromagnetic luminosity and potential ability to accelerate cosmic rays up to energies greater than 10$^{16}$ eV. Interactions of these cosmic rays within the AGN environment are expected to produce both neutrinos and pionic gamma rays. Some hadronic models of AGN emission suggest that such gamma rays can in turn interact with the dense photon fields of AGN and cascade down to hard X-rays and MeV gamma rays. We present an update on the IceCube stacking analysis searching for high-energy neutrinos from hard X-ray sources sampled from the $\textit{Swift}$-BAT AGN Spectroscopic Survey.
description: Presented at the 37th International Cosmic Ray Conference (ICRC 2021). See arXiv:2107.06966 for all IceCube contributions, 11 pages, 5 figures
Current status of the CLIO project
Creators: name: Yamamoto, K
name: Uchiyama, T
name: Miyoki, S
name: Ohashi, M
name: Kuroda, K
name: Ishitsuka, H
name: Akutsu, T
name: Telada, S
name: Tomaru, T
name: Suzuki, T
name: Sato, N
name: Saito, Y
name: Higashi, Y
name: Haruyama, T
name: Yamamoto, A
name: Shintomi, T
name: Tatsumi, D
name: Ando, M
name: Tagoshi, H
name: Kanda, N
name: Awaya, N
name: Yamagishi, S
name: Takahashi, H
name: Araya, A
name: Takamori, A
name: Takemoto, S
name: Higashi, T
name: Hayakawa, H
name: Morii, W
name: Akamatsu, J
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: CLIO (Cryogenic Laser Interferometer Observatory) is a Japanese gravitational wave detector project. One of the main purposes of CLIO is to demonstrate thermal-noise suppression by cooling mirrors for a future Japanese project, LCGT (Large-scale Cryogenic Gravitational Telescope). The CLIO site is in Kamioka mine, as is LCGT. The progress of CLIO between 2005 and 2007 (room- and cryogenic-temperature experiments) is introduced in this article. In a room-temperature experiment, we made efforts to improve the sensitivity. The current best sensitivity at 300 K is about $6 \times 10^{-21} /\sqrt{\rm Hz}$ around 400 Hz. Below 20 Hz, the strain (not displacement) sensitivity is comparable to that of LIGO, although the baselines of CLIO are 40-times shorter (CLIO: 100m, LIGO: 4km). This is because seismic noise is extremely small in Kamioka mine. We operated the interferometer at room temperature for gravitational wave observations. We obtained 86 hours of data. In the cryogenic experiment, it was confirmed that the mirrors were sufficiently cooled (14 K). However, we found that the radiation shield ducts transferred 300K radiation into the cryostat more effectively than we had expected. We observed that noise caused by pure aluminum wires to suspend a mirror was suppressed by cooling the mirror.
description: 8 pages, 9 figures. Amaldi7 proceedings, J. Phys.: Conf. Ser. (accepted)