cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Soliton Shedding from Airy Pulses in a Highly Dispersive and Nonlinear Medium
Creators: name: Gaur, Deependra Singh
name: Purohit, Ankit
name: Mishra, Akhilesh Kumar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We present a numerical investigation of the propagation dynamics of a truncated Airy pulse in a highly dispersive and nonlinear medium by employing the split-step Fourier transform method and look, in particular, into the effects of fourth order dispersion (FOD) and cubic-quintic-septic nonlinearity on pulse evolution. Presence of FOD cancels the Airy pulse self-acceleration along with eclipsing the oscillatory tail during propagation in the linear regime. Further, we observe soliton shedding at low input pulse power in the presence of cubic and quintic nonlinearity and negative FOD. The emergent soliton exhibits temporal shift and the direction and the extent of the shift depend upon the strengths of cubic and quintic nonlinearities. In the presence of anomalous group velocity dispersion (GVD) with negative FOD, soliton shedding is observed at relatively high input pulse power. The strengths of GVD and nonlinearity play a vital role in the temporal shifting of emergent soliton. Furthermore, we have explored the effects of septic nonlinearity on soliton shedding in different scenarios of nonlinearity and dispersion.
description: 11 pages, 12 figures
Antioxidant activity and toxicity study of cerium oxide nanoparticles stabilized with innovative functional copolymers
Creators: name: Goujon, Geoffroy
name: Baldim, Victor
name: Roques, Caroline
name: Bia, Nicolas
name: Seguin, Johanne
name: Palmier, Bruno
name: Graillot, Alain
name: Loubat, Cédric
name: Mignet, Nathalie
name: Margaill, Isabelle
name: Berret, Jean-François
name: Beray-Berthat, Virginie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Oxidative stress, which is one of the main harmful mechanisms of pathologies including is-chemic stroke, contributes to both neurons and endothelial cell damages, leading to vascular lesions. Although many antioxidants have been tested in preclinical studies, no treatment is currently available for stroke patients. Since cerium oxide nanoparticles (CNPs) exhibit remarkable antioxidant capacities, our objective is to develop an innovative coating to enhance CNPs biocompatibility without disrupting their antioxidant capacities or enhance their toxicity. This study reports the synthesis and characterization of functional polymers and their impact on the enzyme-like catalytic activity of CNPs. To study the toxicity and the antioxidant properties of CNPs for stroke and particularly endothelial damages, in vitro studies are conducted on a cerebral endothelial cell line (bEnd.3). Despite their internalization in bEnd.3 cells, coated CNPs are devoid of cytotoxicity. Microscopy studies report an intracellular localization of CNPs, more precisely in endosomes. All CNPs reduces glutamate-induced intracellular production of ROS in endothelial cells but one CNP significantly reduces both the production of mitochondrial super-oxide anion and DNA oxidation. In vivo studies report a lack of toxicity in mice. This study there-fore describes and identifies biocompatible CNPs with interesting antioxidant properties for ischemic stroke and related pathologies.
description: 27 pages 9 figures
The subsistence economy of the Locarno Beach culture (3300-2400 B.P.)
Creators: name: Stiefel, Sheryl Kay
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is concerned with analysing vertebrate fauna (mammals, birds, and fish) from the Locarno Beach culture (3300-2400 B.P.) of the Fraser River Delta area in southern British Columbia. The principal objective is to reconstruct site level vertebrate exploitative patterns for the Locarno Beach culture components at the Locarno Beach (DhRt 6), Whalen Farm (DfRs 3), and Musqueam NE (DhRt 4) sites. Qualitative and quantitative faunal analytic methods are employed to evaluate faunal data from each component. Data are also evaluated by seasonal availability and preferred habitat categories. The results of the faunal analysis indicate that Locarno Beach culture populations exploited mainly riverine and foreshore resources. Salmon is the major vertebrate resource, followed by land mammals (deer and elk) and waterfowl (mainly diving species). Intensive herring, flatfish, and waterfowl exploitation took place at two sites (DhRt 6 and DfRs 3), probably in conjunction with shellfish harvesting during the late winter through early spring (February to April). DhRt 6 was also occupied during the spring to early summer (April to June) for surf smelt procurement. The third site (DhRt 4) was occupied from late winter through the summer and may have been a major encampment for Fraser River salmon procurement. DhRt 4 also shares many attributes associated with Marpole and Late Prehistoric culture village sites. It is concluded that the Locarno Beach culture vertebrate subsistence economy is part of the Northwest Coast pattern. The Locarno Beach culture is a development from the St. Mungo culture (4300 - 3300 B.P.) with greater emphasis on riverine resources, especially salmon. Locarno Beach culture vertebrate fauna data indicate a range of site types, including seasonal resource extraction sites, salmon fishing sites, and possibly a winter village site. Similar to Marpole (2400-1600 B.P.) and Late Prehistoric (1600-1100 B.P.) cultures, Locarno Beach culture populations of the Fraser Delta exploited aggregated resources (e.g. herring, flatfish, waterfowl, and shellfish) at seasonally occupied camps during the late winter to early spring. The primary summer subsistence activity was salmon procurement. Preliminary evidence suggests that Fraser River sockeye salmon runs (late summer to fall) were intensively exploited with fishing nets near DhRt 4. Prolonged occupation at DhRt 4 during the winter may indicate that this site was a winter village, as well as a fishing site.
Deutsche Gesandtschaftsberichte aus Prag. Teil II: Vom Kabinett Beneš bis zur ersten übernationalen Regierung unter Švehla 1921-1926. Berichte des Gesandten Dr. Walter Koch
Creators: name: Küpper, René
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 4 (2005)
Charge dynamics of doped holes in high Tc cuprates - A clue from optical conductivity
Creators: name: Mishchenko, A. S.
name: Nagaosa, N.
name: Shen, Z. -X.
name: De Filippis, G.
name: Cataudella, V.
name: Devereaux, T. P.
name: Bernhard, C.
name: Kim, K. W.
name: Zaanen, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The charge dynamics in weakly hole doped high temperature superconductors is studied in terms of the accurate numerical solution to a model of a single hole interacting with a quantum lattice in an antiferromagnetic background, and accurate far-infrared ellipsometry measurements. The experimentally observed two electronic bands in the infrared spectrum can be identified in terms of the interplay between the electron correlation and electron-phonon interaction resolving the long standing mystery of the mid-infrared band.
description: 4 pages, 4 figures. Accepted to Phys. Rev. Letters
Kaido Laurits, Saksa kultuuromavalitsus Eesti Vabariigis 1925-1940
Creators: name: Hackmann, Jörg
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2010

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 59 Nr. 1 (2010)
РАССЛЕДОВАНИЕ ПРЕСТУПЛЕНИЙ, СВЯЗАННЫХ С НАРУШЕНИЕМ ПРАВИЛ ИНФОРМАТИЗАЦИИ В ЗАКОНОДАТЕЛЬСТВЕ РЕСПУБЛИКИ УЗБЕКИСТАН
Creators: name: Тургунов, Икбол
Publisher: name: Zenodo
Year: 2025

description: Расследование преступлений, связанных с нарушением правил информатизации в Республике Узбекистан, представляет собой актуальную и сложную задачу в условиях цифровой трансформации общества. В рамках действующего законодательства, включая Закон Республики Узбекистан «Об информатизации» (2003) и иные нормативные акты, к таким преступлениям относятся несанкционированный доступ к информационным системам, утечки данных, кибератаки, а также несоблюдение требований по защите критически важной инфраструктуры. Ключевыми субъектами расследования выступают специализированные подразделения МВД и Службы государственной безопасности, сотрудничающие с IT-экспертами для анализа цифровых следов, проведения кибернетической экспертизы и обеспечения сохранности электронных доказательств.
Statistics of the polariton condensate
Creators: name: Schwendimann, Paolo
name: Quattropani, Antonio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The influence of polariton-polariton scattering on the statistics of the polariton condensate in a non-resonantly excited semiconductor quantum well embedded in a CdTe semiconductor microcavity is discussed. Taking advantage of the existence of a bottleneck in the polariton dispersion curve, the polariton states are separated into two domains: reservoir polaritons inside the bottleneck and active polaritons with wave vector q whose energy lies below the bottleneck. In the framework of the master equation formalism, the non-equilibrium stationary reduced density matrix is calculated and the statistics of polaritons in the condensate at q=0 is determined. The anomalous correlations between the polaritons in the condensate and those with wave vectors q, -q leads to an enhancement of the noise in the condensate. As a consequence, the second order correlation function of the condensate does not show the full coherence that is characteristic of laser emission.
description: 35 pages, 5 figures
Method Calls Frequency-Based Tie-Breaking Strategy For Software Fault Localization
Creators: name: Sarhan, Qusay Idrees
name: Vancsics, Bela
name: Beszedes, Arpad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: In Spectrum-Based Fault Localization (SBFL), a suspiciousness score is assigned to each code element based on test coverage and test outcomes. The scores are then used to rank the code elements relative to each other in order to aid the programmer during the debugging process when seeking the source of a fault. However, probably none of the known SBFL formulae are guaranteed to produce different scores for all the program elements, hence ties emerge between the code elements. Based on our experiments, ties in SBFL are prevalent: in Defects4J, 54-56% of buggy methods are members of ties, i.e., there is at least one other method with the same score in these cases (but typically much more, on average 6), and this inevitably reduces the effectiveness of any SBFL approach. In this work, we present a technique to break ties in such cases based on the so-called method calls frequencies. This counts the number of different contexts of method calls (both as callees and as callers) in failing test cases. The intuition is that if a method appears in many different calling contexts during a failing test case, it will be more suspicious and get a higher rank position compared to other methods with the same scores. This method can be applied to any underlying SBFL formula, and can favourably break the occurring ranks in the ties in many cases. The experimental results show that our novel tie-breaking strategy achieved a significant reduction in both size and number of critical ties in our benchmark. In 72-73% of the cases, the ties were completely eliminated and the average reduction rate was more than 80%.
description: 11 Pages
Amanita pseudovalens var. pseudovalens R. Arraiano-Castilho, A. C. Silva, C. Vila-Vicosa, M. R. Castro, L. Morgado & P. Oliveira var. pseudovalens 2022, comb. nov., stat. nov.
Creators: name: Arraiano-Castilho, Ricardo
name: Silva, Ana Cristina
name: Vila-Viçosa, Carlos
name: Castro, Mário Rui
name: Morgado, Luís Neves
name: Oliveira, Paulo
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Amanitaceae
Amanita
Amanita pseudovalens
Amanita pseudovalens (neville & poumarat) r.arraiano-Castilho, a.c.silva, c.vila-Viçosa, m.r.castro, l.morgado & p.oliveira var. pseudovalens

description: Amanita pseudovalens (Neville & Poumarat) R.Arraiano-Castilho, A.C.Silva, C.Vila-Viçosa, M.R.Castro, L.Morgado & P.Oliveira var. pseudovalens comb. nov., stat. nov.
Basionym: Amanita curtipes f. pseudovalens Neville & Poumarat, Fungi Europaei 9: 656 (Neville & Poumarat 2004).
SPECIMENS EXAMINED. — France. Landes, 15.V.1993, Mesplède, G74; 19.V.1965, J. Beller échantillon 2937, MPU1.
Morocco. Larache, 04. V.1964, G. Malençon échantillon 5225, MPU 2 (DNA only).
MYCOBANK. — MB 845581.
NOTES
This taxon corresponds to the French specimens (see Discussion for other possible locations). The basionym diagnosis (Neville & Poumarat 2004) remains unaltered for this variety (Table 6).
description: Published as part of Arraiano-Castilho, Ricardo, Silva, Ana Cristina, Vila-Viçosa, Carlos, Castro, Mário Rui, Morgado, Luís Neves & Oliveira, Paulo, 2022, The Amidella clade in Europe (Basidiomycota: Amanitaceae): clarification of the contentious Amanita valens (E. - J. Gilbert) Bertault and the importance of taxon-specific PCR primers for identification, pp. 139-157 in Cryptogamie, Mycologie 20 (6) on page 144, DOI: 10.5252/cryptogamie-mycologie2022v43a6, http://zenodo.org/record/7829510
Frame-like Actions for Massless Mixed-Symmetry Fields in Minkowski space
Creators: name: Skvortsov, E. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A frame-like action for arbitrary mixed-symmetry bosonic massless fields in Minkowski space is constructed. The action is given in a simple form and consists of two terms for a field of any spin. The fields and gauge parameters are certain tensor-valued differential forms. The formulation is based on the unfolded form of equations for mixed-symmetry fields.
description: 25 pages; replaced with revised version
The classification of torsion endo-trivial modules
Creators: name: Carlson, Jon F.
name: Thevenaz, Jacques
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: This paper is a major step in the classification of endotrivial modules over p-groups. Let G be a finite p-group and k be a field of characteristic p. A kG-module M is an endo-trivial module if {\End_k(M)\cong k\oplus F} as kG-modules, where F is a free module. The classification of endo-trivial modules is the crucial step for understanding the more general class of endo-permutation modules. The endo-permutation modules play an important role in module theory, in particular as source modules, and in block theory where they appear in the description of source algebras. Endo-trivial modules are also important in the study of both derived equivalences and stable equivalences of group algebras and block algebras. The collection of isomorphism classes of endo-trivial modules modulo projectives is an abelian group under tensor product. The main result of this paper is that this group is torsion free except in the case that G is cyclic, quaternion or semi-dihedral. Hence for any p-group which is not cyclic, quaternion or semi-dihedral and any finitely generated kG-module M, if M \otimes_k M \otimes_k ... \otimes_k M \cong k \oplus P for some projective module P and some finite number of tensor products, then M \cong k \oplus Q for some projective module Q. The proof uses a reduction to the cases in which G is an extraspecial or almost extraspecial p-group, proved in a previous paper of the authors, and makes extensive use of the theory of support varieties for modules.
description: 61 pages, published version
A New 100-GHz Band Front-End System with a Waveguide-Type Dual-Polarization Sideband-Separating SIS Receiver for the NRO 45-m Radio Telescope
Creators: name: Nakajima, Taku
name: Kawamura, Masayuki
name: Kimura, Kimihiro
name: Yonekura, Yoshinori
name: Ogawa, Hideo
name: Sakai, Takeshi
name: Kuno, Nario
name: Tsuboi, Masato
name: Asayama, Shin'ichiro
name: Noguchi, Takashi
name: Kawabe, Ryohei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We developed a waveguide-type dual-polarization sideband-separating SIS receiver system of the 100-GHz band for the 45-m radio telescope at the Nobeyama Radio Observatory, Japan. This receiver is composed of an ortho-mode transducer and two sideband-separating SIS mixers, which are both based on the waveguide technique. The receiver has four intermediate frequency bands of 4.0--8.0 GHz. Over the radio frequency range of 80--120 GHz, the single-sideband receiver noise temperatures are 50--100 K and the image rejection ratios are greater than 10 dB. We developed new matching optics for the telescope beam as well as new IF chains for the four IF signals. The new receiver system was installed in the telescope, and we successfully observed the 12CO, 13CO and C18O emission lines simultaneously toward the Sagittarius B2 region to confirm the performance of the receiver system. The SSB noise temperature of the system, including the atmosphere, became approximately half of that of the previous receiver system. The Image Rejection Ratios (IRRs) of the two 2SB mixers were calculated from the 12CO and HCO+ spectra from the W51 giant molecular cloud, resulting in > 20 dB for one polarization and > 12 dB for the other polarization.
description: 10 pages, 13 figures, Accepted for publication in PASJ, version with high resolution figures is available via http://www.nro.nao.ac.jp/library/report/list.html
On the relation of Voevodsky's algebraic cobordism to Quillen's K-theory
Creators: name: Panin, I.
name: Pimenov, K.
name: Röndigs, O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 14F05; 55N22; 55P43

description: Quillen's algebraic K-theory is reconstructed via Voevodsky's algebraic cobordism. More precisely, for a ground field k the algebraic cobordism P^1-spectrum MGL of Voevodsky is considered as a commutative P^1-ring spectrum. There is a unique ring morphism MGL^{2*,*}(k)--> Z which sends the class [X]_{MGL} of a smooth projective k-variety X to the Euler characteristic of the structure sheaf of X. Our main result states that there is a canonical grade preserving isomorphism of ring cohomology theories MGL^{*,*}(X,U) \tensor_{MGL^{2*,*}(k)} Z --> K^{TT}_{- *}(X,U) = K'_{- *}(X-U)} on the category of smooth k-varieties, where K^{TT}_* is Thomason-Trobaugh K-theory and K'_* is Quillen's K'-theory. In particular, the left hand side is a ring cohomology theory. Moreover both theories are oriented and the isomorphism above respects the orientations. The result is an algebraic version of a theorem due to Conner and Floyd. That theorem reconstructs complex K-theory via complex cobordism.
description: LaTeX, 18 pages, uses XY-pic
The gamma Dor CoRoT target HD49434. I-Results from the ground-based campaign
Creators: name: Uytterhoeven, K.
name: Mathias, P.
name: Poretti, E.
name: Rainer, M.
name: Martin-Ruiz, S.
name: Rodriguez, E.
name: Amado, P. J.
name: LeContel, D.
name: Jankov, S.
name: Niemczura, E.
name: Pollard, K.
name: Brunsden, E.
name: Paparo, M.
name: Costa, V.
name: Valtier, J. -C.
name: Garrido, R.
name: Marin, A. J.
name: Suarez, J. C.
name: Kilmartin, P. H.
name: Chapellier, E.
name: Rodriguez-Lopez, C.
name: Aceituno, F. J.
name: Casanova, V.
name: Rolland, A.
name: Olivares, I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: We present the results of an extensive ground-based photometric and spectroscopic campaign on the gamma Dor CoRoT target HD49434. This campaign was preparatory to the CoRoT satellite observations, which took place from October 2007 to March 2008. Results: The frequency analysis clearly shows the presence of four frequencies in the 0.2-1.7 c/d interval, as well as six frequencies in the 5-12 c/d domain. The low frequencies are typical for gamma Dor variables while the high frequencies are common for delta Sct pulsators. We propose the frequency 2.666 c/d as a possible rotational frequency. All modes, for which an identification was possible, seem to be high-degree modes (3 <= l <= 8). We did not find evidence for a possible binary nature of HD49434. The element abundances we derived are consistent with the values obtained in previous analyses. Conclusions: We classify the gamma Dor star HD49434 as a hybrid pulsator, which pulsates simultaneously in p- and g-modes. This finding makes HD49434 an extremely interesting target for asteroseismic modelling. Observations: Based on observations made with the 2.2m ESO/MPI telescope at the La Silla Observatory under the ESO Large Programme: LP178.D-0361. Also based on observations obtained at Observatorio de Sierra Nevada (Spain), at the Centro Astronomico Hispano Aleman at Calar Alto (Spain), at Observatorio Astronomico Nacional San Pedro Martir (Mexico), at the Piszkesteto Mountain Station of Konkoly Observatory (Hungary), at Observatoire de Haute Provence (France) and at Mount John University Observatory (New Zealand).
description: 15 pages, 10 figures, 9 tables accepted for publication in Astronomy and Astrophysics
Ethical User Interfaces: Exploring the Effects of Dark Patterns on Facebook
Creators: name: Mildner, Thomas
name: Savino, Gian-Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Many researchers have been concerned with whether social media has a negative impact on the well-being of their audience. With the popularity of social networking sites (SNS) steadily increasing, psychological and social sciences have shown great interest in their effects and consequences on humans. In this work, we investigate Facebook using the tools of HCI to find connections between interface features and the concerns raised by these domains. Using an empirical design analysis, we identify interface interferences impacting users' online privacy. Through a subsequent survey (n=116), we find usage behaviour changes due to increased privacy concerns and report individual cases of addiction and mental health issues. These observations are the results of a rapidly changing SNS creating a gap of understanding between users' interactions with the platform and future consequences. We explore how HCI can help close this gap and work towards more ethical user interfaces in the future.
Low Temperature Domain Wall Freezing and Non-Equilibrium Dynamics in the Transverse-Field Ising Model Material CoNb$_2$O$_6$
Creators: name: Sarkis, C. L.
name: Säubert, S.
name: Williams, V.
name: Choi, E. S.
name: Reeder, T. R.
name: Nair, H. S.
name: Ross, K. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: CoNb$_2$O$_6$ is a rare realization of the transverse field Ising model (TFIM), making it a useful tool for studying both equilibrium and non-equilibrium many-body quantum physics. Despite a large body of work dedicated to characterizing this material, details of the ordered states in the presence of relatively weak transverse fields have not been discussed in detail. Here, we present a detailed study of CoNb$_2$O$_6$ via ac susceptibility measurements in order to further characterize its low temperature behavior in the presence of a transverse field. Specifically, we call attention to an unconventional freezing transition in zero-field below T$_F$ = 1.2~K, occurring \emph{within} the well-known commensurate antiferromagnetic (CAFM) state that onsets at $T_{N2}$ = 1.9~K. We performed a series of transverse-field quenches into this frozen state, which resulted in a slowly relaxing susceptibility, $χ^{\prime}(t)$, that followed a logarithmic decay within the time range measured. We discuss the frozen state in the context of the freezing of previously discussed "free" chains arising from domain walls between the four degenerate sublattices of the CAFM state. We also attempted to observe Kibble-Zurek scaling by quenching the transverse field into the frozen state at different rates. This produced a null result; the behavior can be fully explained by coarsening of domains over the timescale of the quenches. The absence of a clear Kibble-Zurek scaling is itself surprising, given the proposed ubiquity of the phenomenon for general second order phase transitions.
Work extremum principle: Structure and function of quantum heat engines
Creators: name: Allahverdyan, Armen E.
name: Johal, Ramandeep S.
name: Mahler, Guenter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a class of quantum heat engines consisting of two subsystems interacting via a unitary transformation and coupled to two separate baths at different temperatures $T_h > T_c$. The purpose of the engine is to extract work due to the temperature difference. Its dynamics is not restricted to the near equilibrium regime. The engine structure is determined by maximizing the extracted work under various constraints. When this maximization is carried out at finite power, the engine dynamics is described by well-defined temperatures and satisfies the local version of the second law. In addition, its efficiency is bounded from below by the Curzon-Ahlborn value $1-\sqrt{T_c/T_h}$ and from above by the Carnot value $1-(T_c/T_h)$. The latter is reached|at finite power|for a macroscopic engine, while the former is achieved in the equilibrium limit $T_h\to T_c$. When the work is maximized at a zero power, even a small (few-level) engine extracts work right at the Carnot efficiency.
description: 16 pages, 5 figures
Acoustically induced coherent spin trapping
Creators: name: Hernández-Mínguez, A.
name: Poshakinskiy, A. V.
name: Hollenbach, M.
name: Santos, P. V.
name: Astakhov, G. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Hybrid spin-optomechanical quantum systems offer high flexibility, integrability and applicability for quantum science and technology. Particularly, on-chip surface acoustic waves (SAWs) can efficiently drive spin transitions in the ground states (GSs) of atomic-scale, color centre qubits, which are forbidden in case of the more frequently used electromagnetic fields. Here, we demonstrate that strain-induced spin interactions within their optically excited state (ES) can exceed by two orders of magnitude the ones within the GS. This gives rise to novel physical phenomena, such as the acoustically induced coherent spin trapping (CST) unvealed here. The CST manifests itself as the spin preservation along one particular direction under the coherent drive of the GS and ES by the same acoustic field. Our findings provide new opportunities for the coherent control of spin qubits with dynamically generated strain fields that can lead towards the realization of future spin-acoustic quantum devices.
description: 6 pages, 4 figures, and Supplementary Information
Cyclic and finite surgeries on Montesinos knots
Creators: name: Ichihara, Kazuhiro
name: Jong, In Dae
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50; 57M25

description: We give a complete classification of the Dehn surgeries on Montesinos knots which yield manifolds with cyclic or finite fundamental groups.
description: 9 pages, 2 figures. v2: corollary concerning arborescent knots and comments on the paper; arXiv:0807.1341 added. v3: proof of Proposition 3 corrected. v4: proof of Claim 2 improved
Changing tides: the development of an archaeological exhibit
Creators: name: Stevenson, Ann
Publisher: name: University of British Columbia
Year: 2010

description: This thesis report is part of a larger thesis project which includes the museum exhibit Changing Tides and the UBC Museum of Anthropology Museum Note No. 13, entitled Changing Tides: The Development of Archaeology in B.C.'s Fraser Delta. This report chronicles the planning and production of this exhibit project and outlines the criteria on which it is based. The main objective of this project was to aid in the development of public appreciation for scientific archaeology. Justification for this objective is provided through a discussion of the role of public interpretation in archaeology. Funding, exhibit development, exhibit co-ordination and scheduling, exhibit conservation, Museum Note development, and related activities are discussed and evaluated. A series of appendixes are included which document the development of Changing Tides.
Correlation Bound for a One-Dimensional Continuous Long-Range Ising Model
Creators: name: Hasler, David
name: Hinrichs, Benjamin
name: Siebert, Oliver
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider a measure given as the continuum limit of a one-dimensional Ising model with long-range translationally invariant interactions. Mathematically, the measure can be described by a self-interacting Poisson driven jump process. We prove a correlation inequality, estimating the magnetic susceptibility of this model, which holds for small $L^1$-norm of the interaction function. The bound on the magnetic susceptibility has applications in quantum field theory and can be used to prove existence of ground states for the spin boson model.
description: 19 pages, 1 figure
Optical induced Spin Current in Monolayer NbSe$_2$
Creators: name: Habara, Ren
name: Wakabayashi, Katsunori
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: Monolayer NbSe2 is a metallic two-dimensional (2D) transition-metal dichalcogenide material. Owing to the lattice structure and the strong atomic spin-orbit coupling (SOC) field, monolayer NbSe2 possesses Ising-type SOC which acts as effective Zeeman field, leading to the unconventional topological spin properties. In this paper, we numerically calculate spin-dependent optical conductivity of monolayer NbSe2 using Kubo formula based on an effective tight-binding model which includes $d_{z^2}$, $d_{x^2-y^2}$ and $d_{xy}$ orbitals of Nb atom. Numerical calculation indicates that the up- and down-spin have opposite sign of Hall current, so the pure spin Hall current can be generated in monolayer NbSe2 under light irradiation, owing to the topological nature of monolayer NbSe2, i.e., finite spin Berry curvature. The spin Hall angle is also evaluated. The optical induced spin Hall current can be enhanced by the electron doping and persists even at room temperature. Our results will serve to design opt-spintronics devices such as spin current harvesting by light irradiation on the basis of 2D materials.
description: 4 pages, 3 figures
Vitetnek ítélőszékre... Az 1674-es gályarabper jegyzőkönyve.
Creators: name: Bak, Janos
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 1 (2003)
Two-dimensional particle-in-cell simulation of magnetic reconnection in the downstream of a quasi-perpendicular shock
Creators: name: Lu, Quanming
name: Yang, Zhongwei
name: Wang, Huanyu
name: Wang, Rongsheng
name: Huang, Kai
name: Lu, San
name: Wang, Shui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Space Physics (physics.space-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this paper, by performing a two-dimensional particle-in-cell simulation, we investigate magnetic reconnection in the downstream of a quasi-perpendicular shock. The shock is nonstationary, and experiences a cyclic reformation. At the beginning of reformation process, the shock front is relatively flat, and part of upstream ions are reflected by the shock front. The reflected ions move upward in the action of Lorentz force, which leads to the upward bending of magnetic field lines at the foot of the shock front, and then a current sheet is formed due to the squeezing of the bending magnetic field lines. The formed current sheet is brought toward the shock front by the solar wind, and the shock front becomes irregular after interacting with the current sheet. Both the current sheet brought by the solar wind and the current sheet associated with the shock front are then fragmented into many small filamentary current sheets. Electron-scale magnetic reconnection may occur in several of these filamentary current sheets when they are convected into the downstream, and magnetic islands are generated. A strong reconnection electric field and energy dissipation are also generated around the X line, and high-speed electron outflow is also formed.
Inverse Faraday Effect for Superconducting Condensates
Creators: name: Mironov, S. V.
name: Mel'nikov, A. S.
name: Tokman, I. D.
name: Vadimov, V.
name: Lounis, B.
name: Buzdin, A. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Cooper pairs in superconducting condensates are shown to acquire a temperature-dependent dc magnetic moment under the effect of the circularly polarized electromagnetic radiation. The mechanisms of this inverse Faraday effect are investigated within the simplest version of the phenomenological dynamic theory for superfluids, namely, the time-dependent Ginzburg-Landau (GL) model. The light-induced magnetic moment is shown to be strongly affected by the nondissipative oscillatory contribution to the superconducting order parameter dynamics which appears due to the nonzero imaginary part of the GL relaxation time. The relevance of the latter quantity to the Hall effect in superconducting state allows to establish the connection between the direct and inverse Faraday phenomena.
description: 11 pages, 3 figures
Pulsational frequencies of the eclipsing delta-Scuti star HD 172189
Creators: name: Costa, J. E. S.
name: Michel, E.
name: Pena, J.
name: Creevey, O.
name: Li, Z. P.
name: Chevreton, M.
name: Belmonte, J. A.
name: Alvarez, M.
name: Machado, L. Fox
name: Parrao, L.
name: Hernendez, F. Perez
name: Fernandez, A.
name: Fremy, J. R.
name: Pau, S.
name: Alonso, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The eclipsing delta-Scuti star HD 172189 is a probable member of the open cluster IC 4756 and a promising candidate target for the CoRoT mission. The detection of pulsation modes is the first step in the asteroseismological study of the star. Further, the calculation of the orbital parameters of the binary system allows us to make a dynamical determination of the mass of the star, which works as an important constraint to test and calibrate the asteroseismological models. From a detailed frequency analysis of 210 hours of photometric data of HD 172189 obtained from the STEPHI XIII campaign we have identified six pulsation frequencies with a confidence level of 99% and a seventh with a 65% confidence level in the range between 100-300 uHz. In addiction, three eclipses were observed during the campaign, allowing us to improve the determination of the orbital period of the system.
description: 6 pages, 7 figures
Eduard Mühle, Für Volk und deutschen Osten. Der Historiker Hermann Aubin und die deutsche Ostforschung
Creators: name: Etzemüller, Thomas
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 4 (2005)
Deutschland und Polen im zwanzigsten Jahrhundert. Analysen - Quellen - didaktische Hinweise.
Creators: name: Steier-Jordan, Sonja
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 4 (2002)
Anomalous Quantum Hall Effect on Sphere
Creators: name: Jellal, Ahmed
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the anomalous quantum Hall effect exhibited by the relativistic particles living on two-sphere S^2 and submitted to a magnetic monopole. We start by establishing a direct connection between the Dirac and Landau operators through the Pauli--Schrödinger Hamiltonian H_{s}^{SP}. This will be helpful in the sense that the Dirac eigenvalues and eigenfunctions will be easily derived. In analyzing H_{s}^{SP} spectrum, we show that there is a composite fermion nature supported by the presence of two effective magnetic fields. For the lowest Landau level, we argue that the basic physics of graphene is similar to that of two-dimensional electron gas, which is in agreement with the planar limit. For the higher Landau levels, we propose a SU(N) wavefunction for different filling factors that captures all symmetries. Focusing on the graphene case, i.e. N=4, we give different configurations those allowed to recover some known results.
description: 23 pages, clarifications, references added, misprints corrected. Version to appear in NPB
Low voltage control of ferromagnetism in a semiconductor p-n junction
Creators: name: Owen, M. H. S.
name: Wunderlich, J.
name: Novak, V.
name: Olejnik, K.
name: Zemen, 3 J.
name: Vyborny, K.
name: Ogawa, S.
name: Irvine, A. C.
name: Ferguson, A. J.
name: Sirringhaus, H.
name: Jungwirth, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The concept of low-voltage depletion and accumulation of electron charge in semiconductors, utilized in field-effect transistors (FETs), is one of the cornerstones of current information processing technologies. Spintronics which is based on manipulating the collective state of electron spins in a ferromagnet provides complementary technologies for reading magnetic bits or for the solid-state memories. The integration of these two distinct areas of microelectronics in one physical element, with a potentially major impact on the power consumption and scalability of future devices, requires to find efficient means for controlling magnetization electrically. Current induced magnetization switching phenomena represent a promising step towards this goal, however, they relay on relatively large current densities. The direct approach of controlling the magnetization by low-voltage charge depletion effects is seemingly unfeasible as the two worlds of semiconductors and metal ferromagnets are separated by many orders of magnitude in their typical carrier concentrations. Here we demonstrate that this concept is viable by reporting persistent magnetization switchings induced by short electrical pulses of a few volts in an all-semiconductor, ferromagnetic p-n junction.
description: 11 pages, 4 figures
Amanita curtipes F. PSEUDOVALENS AND
Creators: name: Arraiano-Castilho, Ricardo
name: Silva, Ana Cristina
name: Vila-Viçosa, Carlos
name: Castro, Mário Rui
name: Morgado, Luís Neves
name: Oliveira, Paulo
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Amanitaceae
Amanita
Amanita curtipes

description: COMPARISON WITH AMANITA CURTIPES F. PSEUDOVALENS AND
AMANITA PONDEROSA
When comparing the descriptions of all European taxa of series Amidella, based on Neville & Poumarat (2004), as shown in Table 6, the Portuguese specimens of Amanita pseudovalens comb. nov., stat. nov. did not conform with the description for the genetically indistinct A. curtipes f. pseudovalens (Neville & Poumarat 2004), diverging in their soil and vegetation affinities and in the microscopy. Therefore, we understand them as representing a separate taxon, however at infraspecific level.
Moreover, Table 6 shows that the tartessiana variety resembles A. ponderosa in almost every aspect – the obvious difference being the so far unknown occurrence of large and heavy specimens in the former – being, by comparison, much less similar to the conspecific A. pseudovalens comb. nov., stat. nov. collected in France.
description: Published as part of Arraiano-Castilho, Ricardo, Silva, Ana Cristina, Vila-Viçosa, Carlos, Castro, Mário Rui, Morgado, Luís Neves & Oliveira, Paulo, 2022, The Amidella clade in Europe (Basidiomycota: Amanitaceae): clarification of the contentious Amanita valens (E. - J. Gilbert) Bertault and the importance of taxon-specific PCR primers for identification, pp. 139-157 in Cryptogamie, Mycologie 20 (6) on page 146, DOI: 10.5252/cryptogamie-mycologie2022v43a6, http://zenodo.org/record/7829510
Decolorization of Reactive Black 5 from Synthetic Dye Wastewater by Fenton Process
Creators: name: Sermpong Sairiam
name: Pumis Thuptimdang
name: Pisut Painmanakul
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2019
Subjects: Decolorization
Dye wastewater treatment
Fenton process
Reactive Black 5

description: EnvironmentAsia, 12, 2, 1 - 8
Virial halo mass function in the ${\it Planck}$ cosmology
Creators: name: Shirasaki, Masato
name: Ishiyama, Tomoaki
name: Ando, Shin'ichiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study halo mass functions with high-resolution $N$-body simulations under a $Λ$CDM cosmology. Our simulations adopt the cosmological model that is consistent with recent measurements of the cosmic microwave backgrounds with the ${\it Planck}$ satellite. We calibrate the halo mass functions for $10^{8.5} \lower.5ex\hbox{$\; \buildrel < \over \sim \;$} M_\mathrm{vir} / (h^{-1}M_\odot) \lower.5ex\hbox{$\; \buildrel < \over \sim \;$} 10^{15.0 - 0.45 \, z}$, where $M_\mathrm{vir}$ is the virial spherical overdensity mass and redshift $z$ ranges from $0$ to $7$. The halo mass function in our simulations can be fitted by a four-parameter model over a wide range of halo masses and redshifts, while we require some redshift evolution of the fitting parameters. Our new fitting formula of the mass function has a 5\%-level precision except for the highest masses at $z\le 7$. Our model predicts that the analytic prediction in Sheth $\&$ Tormen would overestimate the halo abundance at $z=6$ with $M_\mathrm{vir} = 10^{8.5-10}\, h^{-1}M_\odot$ by $20-30\%$. Our calibrated halo mass function provides a baseline model to constrain warm dark matter (WDM) by high-$z$ galaxy number counts. We compare a cumulative luminosity function of galaxies at $z=6$ with the total halo abundance based on our model and a recently proposed WDM correction. We find that WDM with its mass lighter than $2.71\, \mathrm{keV}$ is incompatible with the observed galaxy number density at a $2σ$ confidence level.
description: 19 pages, 11 figures, 2 tables. Accepted for publication in ApJ
Björn M. Felder, Lettland im Zweiten Weltkrieg
Creators: name: Pistohlkors, Gert Von
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2010

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 59 Nr. 1 (2010)
Strong Upper Limits on Sterile Neutrino Warm Dark Matter
Creators: name: Yuksel, Hasan
name: Beacom, John F.
name: Watson, Casey R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Sterile neutrinos are attractive dark matter candidates. Their parameter space of mass and mixing angle has not yet been fully tested despite intensive efforts that exploit their gravitational clustering properties and radiative decays. We use the limits on gamma-ray line emission from the Galactic Center region obtained with the SPI spectrometer on the INTEGRAL satellite to set new constraints, which improve on the earlier bounds on mixing by more than two orders of magnitude, and thus strongly restrict a wide and interesting range of models.
description: 4 pages, 2 figures; minor revisions, accepted for publication in Physical Review Letters
On dust evolution in planet-forming discs in binary systems. I -- Theoretical and numerical modelling: radial drift is faster in binary discs
Creators: name: Zagaria, Francesco
name: Rosotti, Giovanni P.
name: Lodato, Giuseppe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Many stars are in binaries or higher-order multiple stellar systems. Although in recent years a large number of binaries have been proven to host exoplanets, how planet formation proceeds in multiple stellar systems has not been studied much yet from the theoretical standpoint. In this paper we focus on the evolution of the dust grains in planet-forming discs in binaries. We take into account the dynamics of gas and dust in discs around each component of a binary system under the hypothesis that the evolution of the circumprimary and the circumsecondary discs is independent. It is known from previous studies that the secular evolution of the gas in binary discs is hastened due to the tidal interactions with their hosting stars. Here we prove that binarity affects dust dynamics too, possibly in a more dramatic way than the gas. In particular, the presence of a stellar companion significantly reduces the amount of solids retained in binary discs because of a faster, more efficient radial drift, ultimately shortening their lifetime. We prove that how rapidly discs disperse depends both on the binary separation, with discs in wider binaries living longer, and on the disc viscosity. Although the less-viscous discs lose high amounts of solids in the earliest stages of their evolution, they are dissipated slowly, while those with higher viscosities show an opposite behaviour. The faster radial migration of dust in binary discs has a striking impact on planet formation, which seems to be inhibited in this hostile environment, unless other disc substructures halt radial drift further in. We conclude that if planetesimal formation were viable in binary discs, this process would take place on very short time scales.
description: 18 pages, 11 figures; accepted for publication in MNRAS