cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Chiral Majorana fermions in graphene from proximity-induced superconductivity
Creators: name: Högl, Petra
name: Frank, Tobias
name: Kochan, Denis
name: Gmitra, Martin
name: Fabian, Jaroslav
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a detailed theoretical study of chiral topological superconductor phases in proximity-superconducting graphene systems based on an effective model inspired by DFT simulations. Inducing s-wave superconductivity to quantum anomalous Hall effect systems leads to chiral topological superconductors. For out-of-plane magnetization we find topological superconducting phases with even numbers of chiral Majorana fermions per edge which is correlated to the opening of a nontrivial gap in the bulk system in the $\mathrm{ K}$-points and their connection under particle-hole symmetry. We show that in a quantum anomalous Hall insulator with in-plane magnetization and nontrivial gap opening at $\mathrm{M}$, the corresponding topological superconductor can be tuned to host only single chiral Majorana states at its edge which is promising for proposals exploiting such states for braiding operations.
Interaction-Range Effects and Universality in the BCS-BEC Crossover of Spin-Orbit Coupled Fermi Gases
Creators: name: Giambastiani, Davide
name: Barsanti, Michele
name: Chiofalo, Maria Luisa
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We explore the evolution of a ultracold quantum gas of interacting fermions crossing from a Bardeen-Cooper-Schrieffer (BCS) superfluidity to a Bose-Einstein condensation (BEC) of molecular bosons in the presence of a tunable-range interaction among the fermions and of an artificial magnetic field, which can be used to simulate a pseudo-spin-orbit coupling (SOC) and to produce topological states. We find that the crossover is affected by a competition between the finite range of the interaction and the SOC and that the threshold $λ_B$ for the topological transition is affected by the interactions only in the small pair size, BEC-like, regime. Below $λ_B$, we find persistence of universal behavior in the critical temperature, chemical potential, and condensate fraction, provided that the pair correlation length is used as a driving parameter. Above threshold, universality is lost in the regime of large pair sizes. Here, the limiting ground state departs from a weakly-interacting BCS-like, so that a different description is required. Our results can be relevant in view of current experiments with cold atoms in optical cavities, where tunable-range effective atomic interactions can be engineered.
Binary corrected X-ray light curve of Cygnus X-3 : implications for the timing properties of the compact binary system
Creators: name: Choudhury, M.
name: Rao, A. R.
name: Vadawale, S. V.
name: Jain, A. K.
name: Singh, N. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the binary corrected X-ray light curve of Cygnus X-3 using the RXTE-ASM data and RXTE-PCA data. We find that the X-ray template derived from the EXOSAT observations adequately explains the binary variations. Using the recently determined quadratic binary ephemeris we correct the RXTE-PCA lightcurve and obtain the power spectrum which shows distinct features of shifting towards the low frequency regime vis-a-vis the Galactic X-ray binaries. The power spectrum doesn't vary from the hard to the soft state. We also obtain the binary corrected RXTE-ASM monitoring lightcurve and examine the previously obtained correlation between soft X-ray (2-12 keV from RXTE-ASM), hard X-ray (20-100 keV from CGRO-BATSE) and radio (2.2 GHz from GBI) after the binary correction. We find that the correlation time scale is less than a day.
description: Accepted for publication in Astronomy & Astrophysics
Erato exmaugeriae Sacco 1894
Creators: name: Bouchard, Blanche
name: Wesselingh, Frank P.
name: Pouwer, Ronald
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Eratoidae
Erato
Erato exmaugeriae

description: Erato exmaugeriae Sacco, 1894
(Fig. 11A 1-A 3)
Erato exmaugeriae Sacco, 1894: 60. — Fehse & Landau 2002: 97, figs 26, 28. — Van Nieulande et al. 2022: 22, figs 33-34.
Erato maugeriae – Wood 1848: 19, pl. 2, fig. 11 (non J.E Gray, 1832). — Harmer 1920: 512, pl. 45, fig. 2.
Erata (Eratopsis) exmaugeriae – Beets 1946: 65, pl. 3, figs 21-23.
Erato pernana – Van Regteren Altena et al. 1956: 85, pl. 10, fig. 100.
Erata (Eratopsis) pernana exmaugeriae – Glibert 1958: 26, pl. 2, fig.24.
Erata (Eratopsis) pernana – Marquet 1997: 75, pl. 2, fig. 9.
MATERIAL AND DIMENSIONS. — Maximum height 5.2 mm, width 3.6 mm. — RGM.1365106 (2), leg. AWJ; RGM.1365287 (1), leg. AWJ.
SPECIES CHARACTERISATION. — Shell small, squat, smooth, relatively low spire, outer lip thickened, finely denticulate at inner edge, single terminal fold, two strong anterior columellar denticles, three or four posterior columellar denticles weakening adapically.
DISTRIBUTION. — Lower Pliocene: NSB, Coralline Crag, England (Wood 1848; Harmer 1920). — Upper Pliocene: NSB, Red Crag, England (Wood 1848; Harmer 1920), Belgium (Glibert 1958; Marquet 1997). — P liocene-Lower Pleistocene (indeterminate): NSB, Netherlands (Beets 1946; Van Regteren Altena et al. 1956; Van Nieulande et al. 2022). — Lower Pleistocene: Atlantic, Selsoif, NW France (this paper).
REMARKS
The specimens from Selsoif agree with those illustrated by Van Nieulande et al. (2022: figs 33-34).
description: Published as part of Bouchard, Blanche, Wesselingh, Frank P., Pouwer, Ronald & Landau, Bernard, 2025, The Gelasian gastropod fauna of Selsoif (Manche, France), pp. 39-91 in Geodiversitas 47 (3) on pages 68-69, DOI: 10.5252/geodiversitas2025v47a3, http://zenodo.org/record/14823602
Analyzing Selected Scriptural Arguments Against the Doctrine of the Perpetual Virginity of Mary
Creators: name: Edmonds, Noah
Publisher: name: figshare
Year: 2022
Subjects: subject: 220315 Philosophy of Religion
subject: FOS: Philosophy, ethics and religion
subject: 220499 Religion and Religious Studies not elsewhere classified

description: The heavy and selective importance placed upon the Bible in many Protestant Christian denominations oftentimes can lead to the conclusion that if a certain idea or belief cannot be found fully articulated in the post-Reformation canon of Scripture, then the idea must be done away with entirely (an extrapolation on the Lutheran doctrine of sola scriptura, which states that the Scripture alone is infallible and the sole source of authority for Christians to submit to). Additionally, if a set of isolated verses from the Bible can be presented as a defense for this or that belief, then those verses may be lifted from their original context and applied in whatever way seems fit, as within the framework of sola scriptura, there exists no external body of reliable interpretation other than the personal interpretation of the individual. It is in this manner that the Catholic doctrine of the perpetual virginity of Mary the Mother of God is most often critiqued. The doctrine in question (one of the four Marian dogmas of the Church) states that Mary, the wife of Joseph, remained a virgin for the entirety of her life (i.e., before, during, and after the birth of her son Jesus). This doctrine is a matter of divine revelation through the ministry of the Church, as we know from the Scripture that the Holy Spirit reveals doctrinal truth through Apostolic Tradition independent of the Scripture (though not in contradiction to it), in accordance with Acts 15 (which relates the Holy Spirit revealing its will directly through Church Councils and its encyclicals, and not Scripture) and 2 Thessalonians 2:15 (which has Paul instructing the Christians of Thessalonica to hold to all Church tradition, whether it is Scripturally communicated or not), among others. As such, Scriptural justification for a belief is not strictly required in Catholicism, as Catholics have access to the Magisterium and a deposit of faith that, in the Catholic worldview, is as authoritative as Scripture. In Protestantism, however, natural doubt arises over this Catholic doctrine concerning the lack of its specific articulation in the Scripture, which is compounded by a series of verses that seem to suggest out-of-context that Mary was, in fact, not a perpetual virgin. The purpose and scope of this paper is not to defend the doctrine of the perpetual virginity of Mary or even to assume it as a given or factual reality, but rather to analyze the sets of Scripture which supposedly refute the doctrine, to see if the case is as strong as its proponents would allege.
License: CC BY-ND (Attribution-NoDerivatives)https://creativecommons.org/licenses/by-nd/4.0/legalcode
Lessons from the creative industries: institutions, recurrent change and advantage
Creators: name: Kirchberger, Eva-Maria
Publisher: name: Imperial College London
Year: 2018

description: This dissertation presents a new view on strategy with three interrelated studies exploring how avant-garde leaders in creative industries create sustainable advantages from creativity, recurrent change and innovation especially when under high pressure from imitating rivals due to the lack of barriers for imitation. Study I comprises a field study at avant-garde leader Studio X in service design, which explores how members develop new routines on their flagship project with Dubai Airport, following a wider creative ethos to outdo former work with every project. Innovation is routine, and during this 18-month participatory study I observe how members routinely curate and leverage slack on core projects to invest in further adaptation and experimentation. This ability to continuously innovate and cannibalise previous practices is rooted in, paradoxically, routines of recurrent change, which are part of collective beliefs members follow to distance themselves from imitation. Study II suggests a theoretical framework for advantage based on broader observations in fashion, which captures how leaders coordinate privileges in exclusive clubs to dictate taste and charge premium prices. Members enjoy market-straddling positions that permit status transfer strategies from exclusive markets to more accessible ones, with the objective to charge accessories with high symbolic value. In other words, celebrities an stars wearing exclusive evening gowns on red carpets linked with the same label as perfumes an sunglasses, charges the latter with high symbolic value. Through close relations with key institutions in the field, such as schools, museums and fashion press for example, fashion houses accredit and validate their designs, and therefore enjoy competitive advantages through steady premium prices, even their products get quickly imitated. In Chapter III, I conduct a participatory study combined with field interviews to analyse how service design leader Studio X responds to new challenges arising from imitators in management consulting. Because of their superior skills, these entrants threaten the firm’s position as exemplary firms by shifting the meaning of the category. I observe how the avant-garde leader embraces its creative imperative to fight imitation with novelty by embracing a multi-level transformation process. As a result, the firm attempts to distinguish itself from its followers by highlighting its art-inspired heritage as design firm, sharpening its identity and mimicking features typical of these new entrants, and by doing so, aims to protect its core positioning and what service design comes to mean.
Deep Learning for Image and Point Cloud Fusion in Autonomous Driving: A Review
Creators: name: Cui, Yaodong
name: Chen, Ren
name: Chu, Wenbo
name: Chen, Long
name: Tian, Daxin
name: Li, Ying
name: Cao, Dongpu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Autonomous vehicles were experiencing rapid development in the past few years. However, achieving full autonomy is not a trivial task, due to the nature of the complex and dynamic driving environment. Therefore, autonomous vehicles are equipped with a suite of different sensors to ensure robust, accurate environmental perception. In particular, the camera-LiDAR fusion is becoming an emerging research theme. However, so far there has been no critical review that focuses on deep-learning-based camera-LiDAR fusion methods. To bridge this gap and motivate future research, this paper devotes to review recent deep-learning-based data fusion approaches that leverage both image and point cloud. This review gives a brief overview of deep learning on image and point cloud data processing. Followed by in-depth reviews of camera-LiDAR fusion methods in depth completion, object detection, semantic segmentation, tracking and online cross-sensor calibration, which are organized based on their respective fusion levels. Furthermore, we compare these methods on publicly available datasets. Finally, we identified gaps and over-looked challenges between current academic researches and real-world applications. Based on these observations, we provide our insights and point out promising research directions.
World-sheet Stability of (0,2) Linear Sigma Models
Creators: name: Basu, Anirban
name: Sethi, Savdeep
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue that two-dimensional (0,2) gauged linear sigma models are not destabilized by instanton generated world-sheet superpotentials. We construct several examples where we show this to be true. The general proof is based on the Konishi anomaly for (0,2) theories.
description: 18 pages, LaTeX
Search for the double-beta decay of 82Se to the excited states of 82Kr with NEMO-3
Creators: name: 3 Collaboration
name: Augier, C.
name: Barabash, A. S.
name: Basharina-Freshville, A.
name: Blondel, S.
name: Blot, S.
name: Bongrand, M.
name: Boursette, D.
name: Breier, R.
name: Brudanin, V.
name: Busto, J.
name: Caffrey, A. J.
name: Calvez, S.
name: Cascella, M.
name: Cerna, C.
name: Cesar, J. P.
name: Chapon, A.
name: Chauveau, E.
name: Chopra, A.
name: Dawson, L.
name: Duchesneau, D.
name: Durand, D.
name: Egorov, V.
name: Eurin, G.
name: Evans, J. J.
name: Fajt, L.
name: Filosofov, D.
name: Flack, R.
name: Garrido, X.
name: Girard-Carillo, C.
name: Gómez, H.
name: Guillon, B.
name: Guzowski, P.
name: Hodak, R.
name: Huber, A.
name: Hubert, P.
name: Hugon, C.
name: Jullian, S.
name: Klimenko, A.
name: Kochetov, O.
name: Konovalov, S. I.
name: Kovalenko, V.
name: Lalanne, D.
name: Lang, K.
name: Lemière, Y.
name: Noblet, T. Le
name: Liptak, Z.
name: Liu, X. R.
name: Loaiza, P.
name: Lutter, G.
name: Macko, M.
name: Macolino, C.
name: Mamedov, F.
name: Marquet, C.
name: Mauger, F.
name: Minotti, A.
name: Morgan, B.
name: Mott, J.
name: Nemchenok, I.
name: Nomachi, M.
name: Nova, F.
name: Nowacki, F.
name: Ohsumi, H.
name: Oliviéro, G.
name: Pahlka, R. B.
name: Palusova, V.
name: Patrick, C.
name: Perrot, F.
name: Pin, A.
name: Piquemal, F.
name: Povinec, P.
name: Přidal, P.
name: Ramachers, Y. A.
name: Remoto, A.
name: Reyss, J. L.
name: Richards, B.
name: Riddle, C. L.
name: Rukhadze, E.
name: Saakyan, R.
name: Salazar, R.
name: Sarazin, X.
name: Sedgbeer, J.
name: Shitov, Yu.
name: Simard, L.
name: Simkovic, F.
name: Smetana, A.
name: Smolek, K.
name: Smolnikov, A.
name: Söldner-Rembold, S.
name: Soulé, B.
name: Štekl, I.
name: Suhonen, J.
name: Sutton, C. S.
name: Szklarz, G.
name: Tedjditi, H.
name: Thomas, J.
name: Timkin, V.
name: Torre, S.
name: Tretyak, Vl. I.
name: Tretyak, V. I.
name: Umatov, V. I.
name: Vanushin, I.
name: Vilela, C.
name: Vorobela, V.
name: Waters, D.
name: Xie, F.
name: Žukauskas, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The double-beta decay of 82Se to the 0+1 excited state of 82Kr has been studied with the NEMO-3 detector using 0.93 kg of enriched 82Se measured for 4.75 y, corresponding to an exposure of 4.42 kg y. A dedicated analysis to reconstruct the gamma-rays has been performed to search for events in the 2e2g channel. No evidence of a 2nbb decay to the 0+1 state has been observed and a limit of T2n 1/2(82Se; 0+gs -> 0+1) > 1.3 1021 y at 90% CL has been set. Concerning the 0nbb decay to the 0+1 state, a limit for this decay has been obtained with T0n 1/2(82Se; 0+g s -> 0+1) > 2.3 1022 y at 90% CL, independently from the 2nbb decay process. These results are obtained for the first time with a tracko-calo detector, reconstructing every particle in the final state.
A fully polarizable and dissociable potential for water
Creators: name: Lussetti, E.
name: Pastore, G.
name: Smargiassi, E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A new classical interaction potential for water simulations is presented. Water is modeled as a fully dissociable set of atoms with a point dipole, determined self-consistently, on every oxygen atom. The oxygen polarizability is not fixed but depends on the geometry of the system. We show that, in spite of the limited number of free parameters, the model reproduces the geometrical and vibrational properties of microclusters in a satisfactory way.
On Motivation of Mental Workers / О мотивации работников умственного труда // Кадровик. 2020. № 1. С. 89-98
Creators: name: Simashenkov, Pavel
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 160809 Sociology of Education
subject: 160808 Sociology and Social Studies of Science and Technology
subject: 220319 Social Philosophy
subject: FOS: Philosophy, ethics and religion
subject: 160805 Social Change
subject: 170113 Social and Community Psychology
subject: FOS: Psychology
subject: 150310 Organisation and Management Theory
subject: FOS: Economics and business
subject: 150305 Human Resources Management

description: The article analyses aspects of management of the sphere of mental work. The author claims that modern personnel technologies, designed for stratification of the collective, are not applicable to employees of mental labor. The solution to the problem can be the application of a paternalistic model of governance, which is based on the cultivation of the idea of equality and the non-intervention of superiors in the field of issues directly related to the profession (procedural independence)
Euspira catena
Creators: name: Bouchard, Blanche
name: Wesselingh, Frank P.
name: Pouwer, Ronald
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Naticidae
Euspira
Euspira catena

description: Euspira catena (da Costa, 1778)
(Fig. 11C 1-C 3)
Cochlea catena da Costa, 1778: 83.
Natica (Lunatia) catena – Harmer 1921: 681, pl. 54, figs 1-3.
Euspira catena – Marquet 1997: 76, pl. 2, fig. 11. — Pouwer & Rijken 2022: 31, figs 3-4.
For more, see synonymy list in Marquet (1997).
MATERIAL AND DIMENSIONS. — Maximum height 26.2 mm (incomplete), width 28.5 mm. — RGM.1365192 (10), leg. WG; RGM.1365193 (6), leg. ACJ; RGM.1365108 (29), leg. AWJ; RGM.1365219 (1), leg. AWJ; RGM.1365273 (2), leg. WG; RGM.1365220 (1), leg. WG; RGM.1365282 (11), leg. ACJ; RGM.1365288 (43), leg. AWJ.
SPECIES CHARACTERISATION. — Smooth naticiform shell, with low spire; protoconch consisting of 1.75-2.0 whorls; four convex teleoconch whorls separated by deep suture; last whorl 78% of the total height; aperture large, funicle and inner furrow absent, umbilicus open, with spiral sculpture within.
DISTRIBUTION. — Lower Pliocene: NSB, Belgium (Marquet 1997; Marquet & Landau 2006). — Upper Pliocene: NSB, Belgium (Marquet 1997), Red Crag, England (Harmer 1921). — Lower Pleistocene: Atlantic, England (Harmer 1921), Sesoif, NW France (this paper). — Upper Pleistocene: NSB, Eemian, Netherlands (Spaink 1958), Atlantic, England, Scotland, Ireland (Harmer 1921). — Holocene: Netherlands (Pouwer & Rijken 2022). Today this species occurs from North Sea (Pouwer & Rijken 2022) to the Mediterranean Sea (Fretter & Graham 1981). We cannot confirm Fretter & Graham’s Mediterranean records and note that Pedriali & Robba (2009) did not record it from the Mediterranean Pliocene.
REMARKS
In their excellent review of the Italian Pliocene Poliniceinae, Pedriali & Robba (2009) characterised Euspira catena (da Costa, 1778) and E. helicina (Brocchi, 1814), which had often been confused in the past. Euspira helicina has a subobsolete funicle, a moderately deep to deep inner furrow of variable width and no inner spiral sculpture. Euspira catena lacks a funicle and the inner furrow but has spiral sculpture within the umbilicus (Pedriali & Robba 2009: 383, table 1). They also differ in the size of their protoconchs. Euspira helicina has a protoconch consisting of 2.5-2.75 whorls, whereas E. catena has a smaller protoconch consisting of 1.75-2.0 whorls.
description: Published as part of Bouchard, Blanche, Wesselingh, Frank P., Pouwer, Ronald & Landau, Bernard, 2025, The Gelasian gastropod fauna of Selsoif (Manche, France), pp. 39-91 in Geodiversitas 47 (3) on page 69, DOI: 10.5252/geodiversitas2025v47a3, http://zenodo.org/record/14823602
Amplitude and Gradient Scattering in Waveguides with Corrugated Surfaces
Creators: name: Izrailev, F. M.
name: Luna-Acosta, G. A.
name: Méndez-Bermúdez, J. A.
name: Rendón, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study chaotic properties of eigenstates for periodic quasi-1D waveguides with "regular" and "random" surfaces. Main attention is paid to the role of the so-called "gradient scattering" which is due to large gradients in the scattering walls. We demonstrate numerically and explain theoretically that the gradient scattering can be quite strong even if the amplitude of scattering profiles is very small in comparison with the width of waveguides.
description: 5 pages, 2 figures
Parśurām The Pioneer
Creators: name: RODRIGUES, TENSING CARLOS
Publisher: name: figshare
Year: 2020
Subjects: subject: History
subject: Anthropology
subject: FOS: Sociology
subject: Archaeology
subject: Geography
subject: Sociology

description: Could Parśurām have led a group of Deccan kṣatrīya into coastal Koṁkaṇ, Tuḷuvā and Malabar ? Could the oral tradition – the collective memory of the community - of what had happened in the remote past have resulted in development of the Parśurām legend over time ? Could it be some sort of a feeling of collective gratitude, hero worship ?
A chemical proteomics approach to studying the metabolism and mode of action of insecticides
Creators: name: Adeniji, Ololade Aminat
Publisher: name: Imperial College London
Year: 2018

description: Plutella xylostella attacks many cruciferous plants, reduces crop yields significantly and leads to estimated economic losses of around £4-5 billion yearly. Diamide insecticides are widely used for the control of Lepidoptera pests such as Plutella xylostella globally. Chloranthraniliprole (CHL) is one of the most commonly used commercial diamide insecticide however, cases of resistance have started emerging in the fields where this insecticide is being used. Insecticide resistance is a major challenge in pest control and it eventually renders insecticides ineffective. The research described in this thesis was motivated by the urgent need to gain insight into the sources of diamide insecticide resistance as the hypothesis on which the research is based was that an early understanding of the causes of insecticide resistance could help in designing appropriate interventions to solve this challenge. In this thesis, I will explain how I used structure activity relationship (SAR) studies and built on the knowledge of protein profiling to develop and synthesise a range of small molecules that served as insecticidal probes. I will also elaborate on how the real-life application of one of these probe molecules was demonstrated by using the probe molecule to carry out in-gel labelling experiments in Plutella xylostella. Finally, I describe how the developed probe molecules were used for proteomics experiments that led to the identification of key metabolising enzymes which may be associated with diamide resistance in Plutella xylostella.
UV-LED coupled Photocatalytic Membrane Reactor for water purification purposes : Development, evaluation, and optimization
Creators: name: Sakhaie, Sahar
Publisher: name: The University of British Columbia
Year: 2022

description: Sahar Sakhaie, a UBC 3MT Semi-Finalist, presents their research on the use of UV LEDs to be integrated into a Photocatalytic Membrane that will be used to clean water. Sahar Sakhaie is completing their MASc in Chemical and Biological Engineering under the supervision of Dr. Fariborz Taghipour.
Carrier induced ferromagnetism in concentrated and diluted local-moment systems
Creators: name: Nolting, W.
name: Hickel, T.
name: Ramakanth, A.
name: Reddy, G. G.
name: Lipowczan, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: For modeling the magnetic properties of concentrated and diluted magnetic semiconductors, we use the Kondo-lattice model. The magnetic phase diagram is derived by inspecting the static susceptibility of itinerant band electrons, which are exchange coupled to localized magnetic moments. It turns out that rather low band occupations favour a ferromagnetic ordering of the local moment systems due to an indirect coupling mediated by a spin polarization of the itinerant charge carriers. The disorder in diluted systems is treated by adding a CPA-type concept to the theory. For almost all moment concentrations x, ferromagnetism is possible, however, only for carrier concentrations n distinctly smaller than x. The charge carrier compensation in real magnetic semiconductors (in Ga_{1-x}Mn_{x}As by e.g. antisites) seems to be a necessary condition for getting carrier induced ferromagnetism.
description: 9 pages (REVTeX), 6 figures, to be published in Phys. Rev. B
Collisional spin transfer in an atomic heteronuclear spinor Bose gas
Creators: name: Fang, Fang
name: Isaacs, Joshua A.
name: Smull, Aaron
name: Horn, Katinka
name: Basabe, L. Dalila Robledo-De
name: Wang, Yimeng
name: Greene, Chris H.
name: Stamper-Kurn, Dan M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We observe spin transfer within a non-degenerate heteronuclear spinor atomic gas comprised of a small $^7$Li population admixed with a $^{87}$Rb bath, with both elements in their $F=1$ hyperfine spin manifolds and at temperatures of 10's of $μ$K. Prepared in a non-equilibrium initial state, the $^7$Li spin distribution evolves through incoherent spin-changing collisions toward a steady-state distribution. We identify and measure the cross-sections of all three types of spin-dependent heteronuclear collisions, namely the spin-exchange, spin-mixing, and quadrupole-exchange interactions, and find agreement with predictions of heteronuclear $^7$Li-$^{87}$Rb interactions at low energy. Moreover, we observe that the steady state of the $^7$Li spinor gas can be controlled by varying the composition of the $^{87}$Rb spin bath with which it interacts.
Poly-3-hydroxybutyrate Biosynthesis by Bacillus megaterium Utilizing a Pleustophytic Ecological Plague in the Legendary Source of River Nile as the Sole Carbon Source
Creators: name: Omara, Timothy
name: Immaculate Mbabazi
name: Karanja, Lucy Nyambura
name: Decrah Moraa Nyangena
name: Papias Nteziyaremye
name: Abigael Jepchirchir
Publisher: name: figshare
Year: 2020
Subjects: subject: 30101 Analytical Spectrometry
subject: FOS: Chemical sciences

description: Environmental isolates, genetically manipulated organisms, plants, animals and their products and economical methods are being expertly explored to biosynthesize poly-3-hydroxybutyrate plastics of comparable properties to petroplastics. This study assessed a hypothesized feasibility of utilizing water hyacinth (Eichhornia crassipes (Mart.) Solms-Laubach) from Lake Victoria (Uganda) as a potential carbon source for poly-3-hydroxybutyrate biosynthesis. The poly-3-hydroxybutyrate biosynthesizing bacteria (Bacillus megaterium) was isolated from municipal sewage sludge and harnessed for batch fermentation of acid-catalysed water hyacinth biomass. Poly-3-hydroxybutyrate formed in the cytoplasm of the bacterial cells was extracted by chloroform extraction method, and thereof confirmed and quantified by UV spectroscopy. Batch fermentation was carried out in 100 ml of the culture media for different times (48, 96, 144 and 192 h) to determine the best incubation time for maximum yield. A maximum yield of 61.3% was realized after 96 h of fermentation beyond which the bioplastic yield started decreasing. Utilization of this ecological plague for poly-3-hydroxybutyrate biosynthesis is a promising strategy for regulating the weed population along the length of River Nile and the Victorian basin.
Instructivo para la limpieza de bases de datos aptas para uso en lenguaje R y ColOpenData
Creators: name: Tavera-Cifuentes, Maria Camila
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Data processing
subject: Databases

description: Este instructivo presenta el proceso a seguir para facilitar la tarea de reformatear archivos de datos para que sea más sencillo su manejo en R, y desde herramientas que usan este lenguaje tal como ColOpenData, por parte de equipos investigadores que generan evidencia a tomadores de decisión. Siguiendo los pasos de este instructivo se optimizan los tiempos del proceso de ajuste respecto a hacerlo manualmente con uso exclusivo de Excel. Por el momento ha sido usado únicamente para modificar los datos del Censo 2018 de Colmbia, pero es muy posible que el proceso se pueda adecuar a otros datos presentados por el Departamento Administrativo Nacional de Estadística (DANE), o incluso se pueda extender a otras fuentes de datos.
Molecular analysis of Plasmodium genes regulating the gametocyte-to-ookinete-to-oocyst developmental transitions
Creators: name: Ukegbu, Chiamaka Valerie
Publisher: name: Imperial College London
Year: 2018

description: The early parasite development in the mosquito is mostly driven by previously synthesised transcripts in the gametocyte. However, the role of gametocyte players in later sporogonic stages in the vector is relatively unknown. The in vivo transcriptional profiling of P. berghei during the first hour in the Anopheles gambiae midgut was employed in combination with published proteome data, to identify Plasmodium gametocyte enriched genes with functions in downstream sporogonic development. Additionally, differentially regulated Plasmodium genes were also selected from a transcriptional profiling of P. falciparum during the first 24 hours of development in Anopheles gambiae and Anopheles arabiensis. This led to the identification of six genes that are essential for malaria transmission. PBANKA_1353800 and PBANKA_0720900, identified from the P. berghei array are essential for ookinete motility and oocyst sporogony respectively. P. falciparum orthologous PBANKA_0201700, PBANKA_1422900, PBANKA_1457700 and PBANKA_1119200, identified from the P. falciparum array are essential for the ookinete to oocyst transition. Functional characterization was also undertaken for the subtilisin-like domain in SUBO, a protein previously shown to be important for midgut invasion. This revealed that while this domain lacks residues important for catalytic activity, this domain is necessary for the invasion function of SUBO. Finally, this thesis presents the identification of a novel gene regulation during Plasmodium development in the mosquito. By utilizing various transgenic reporters in in vivo and in vitro fertilization experiments, the paternal genome is shown to be transcriptionally silent during ookinete development. These data contribute to the knowledge of the Plasmodium genes responsible for the gametocyte to ookinete to oocyst developmental transitions, and the functional parental origin of these genes during development in the mosquito. These essential genes are targets for the development of transmission blocking interventions.
A Quantum Bousso Bound
Creators: name: Strominger, Andrew
name: Thompson, David
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Bousso bound requires that one quarter the area of a closed codimension two spacelike surface exceeds the entropy flux across a certain lightsheet terminating on the surface. The bound can be violated by quantum effects such as Hawking radiation. It is proposed that at the quantum level the bound be modified by adding to the area the quantum entanglement entropy across the surface. The validity of this quantum Bousso bound is proven in a two-dimensional large N dilaton gravity theory.
description: 17 pages
Urban Scene Analysis Using PSPNet and Efficient Channel Attention Mechanism for Autonomous Driving
Creators: name: Abdu Naim, Md Sohag Mia, Md Jabir Al Hujaifa
Publisher: name: Zenodo
Year: 2024

description: In the realm of computer vision, semantic segmentation is a prominent topic. Scene parsing, a fundamental aspect of computervision, involves segmenting images into semantic categories like sky, road, person, and more, providing a comprehensiveunderstanding of the image. The challenge lies in assigning categories to each pixel, especially in diverse scenarios. This workintroduces an enhanced Pyramid Scene Parsing Network (PSPNet) utilizing a proposed pyramid pooling module and anadvanced scene parsing network. Leveraging global context information through region-based context aggregation, our modelemploys an Efficient Channel Attention (ECA) mechanism for improved understanding of urban scenarios. The improvedPSPNet excels in pixel-level prediction, demonstrating superior performance on scene parsing challenges across diversedatasets. Validation on the Cityscapes Dataset yields impressive results, with the model achieving 72% mIoU in the training set and 67% mIoU in the validation set, showcasing its efficacy in urban scene analysis.
Thermodynamics of the O(N) Nonlinear Sigma Model in 1+1 Dimensions
Creators: name: Andersen, Jens O.
name: Boer, Daniel
name: Warringa, Harmen J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The thermodynamics of the O(N) nonlinear sigma model in 1+1 dimensions is studied. We calculate the pressure to next-to-leading order in the 1/N expansion and show that at this order, only the minimum of the effective potential can be rendered finite by temperature-independent renormalization. To obtain a finite effective potential away from the minimum requires an arbitrary choice of prescription, which implies that the temperature dependence is ambiguous. We show that the problem is linked to thermal infrared renormalons.
description: 8 pages, revtex, 3 eps figures; reference added, improved figure 1, minor other changes, conclusions unchanged
Newton's law in de Sitter brane
Creators: name: Ghoroku, Kazuo
name: Nakamura, Akihiro
name: Yahiro, Masanobu
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Newton potential has been evaluated for the case of dS brane embedded in Minkowski, dS$_5$ and AdS$_5$ bulks. We point out that only the AdS$_5$ bulk might be consistent with the Newton's law from the brane-world viewpoint when we respect a small cosmological constant observed at present universe.
description: 9 pages, 1 figure, LaTeX
Missing Features Reconstruction and Its Impact on Classification Accuracy
Creators: name: Friedjungová, Magda
name: Vašata, Daniel
name: Jiřina, Marcel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In real-world applications, we can encounter situations when a well-trained model has to be used to predict from a damaged dataset. The damage caused by missing or corrupted values can be either on the level of individual instances or on the level of entire features. Both situations have a negative impact on the usability of the model on such a dataset. This paper focuses on the scenario where entire features are missing which can be understood as a specific case of transfer learning. Our aim is to experimentally research the influence of various imputation methods on the performance of several classification models. The imputation impact is researched on a combination of traditional methods such as k-NN, linear regression, and MICE compared to modern imputation methods such as multi-layer perceptron (MLP) and gradient boosted trees (XGBT). For linear regression, MLP, and XGBT we also propose two approaches to using them for multiple features imputation. The experiments were performed on both real world and artificial datasets with continuous features where different numbers of features, varying from one feature to 50%, were missing. The results show that MICE and linear regression are generally good imputers regardless of the conditions. On the other hand, the performance of MLP and XGBT is strongly dataset dependent. Their performance is the best in some cases, but more often they perform worse than MICE or linear regression.
description: Preprint of the conference paper (ICCS 2019), part of the Lecture Notes in Computer Science
Tulipa serbica Tatic & Krivosej 1997
Creators: name: Shuka, Lulëzim
name: Tan, Kit
name: Krasniqi, Elez
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Liliales
Liliaceae
Tulipa
Tulipa serbica

description: Tulipa serbica.
 KOSOVO: hill of Beli Laz, serpentine slopes, 800–900 m, May 1992, coll. ign. (5 sheets in herbarium, Faculty of Mathematics and Natural Sciences, Pristina University); Mt Rogozna, near Donja Kamenica, serpentine slopes, 900 m, Prodanovi ċ (photos).
description: Published as part of Shuka, Lulëzim, Tan, Kit & Krasniqi, Elez, 2012, Tulipa kosovarica (Liliaceae), a new species of tulip from Kosovo, pp. 1-9 in Phytotaxa 62 (1) on page 9, DOI: 10.11646/phytotaxa.62.1.1, http://zenodo.org/record/5061750
The Star Formation History of NGC 1705: a Post-Starburst Galaxy on the Verge of Activity
Creators: name: Annibali, F.
name: Greggio, L.
name: Tosi, M.
name: Aloisi, A.
name: Leitherer, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We infer the star formation history in different regions of the blue compact dwarf NGC 1705 by comparing synthetic color-magnitude diagrams with HST optical and near-infrared photometry. We find that NGC 1705 is not a young galaxy because its star formation commenced at least 5 Gyr ago. On the other hand, we confirm the existence of a recent burst of star formation between 15 and 10 Myr ago. We also find evidence for new strong activity, which started 3 Myr ago and is still continuing. The old population is spread across the entire galaxy, while the young and intermediate stars are more concentrated in the central regions. We derive an almost continuous star formation with variable rate, and exclude the presence of long quiescent phases between the episodes during the last ~1 Gyr. The central regions experienced an episode of star formation of \~0.07 Msun/yr (for a Salpeter initial mass function [IMF]) 15 to 10 Myr ago. This coincides with the strong activity in the central super star cluster. We find a rate of ~0.3 Msun/yr for the youngest ongoing burst which started ~3 Myr ago. This is higher than in other dwarfs and comparable to the rate of NGC 1569. The star formation rate of earlier episodes is not especially high and falls in the range 10^{-3}-10^{-1} Msun/yr. The IMF is close to the Salpeter value or slightly steeper.
description: 34 pages, including 6 tables and 14 .ps figures (9 in colour), AJ in press
Novel Porous Aluminum Nitride Monolayer Structures A First-principles Study
Creators: name: Luo, Yanwei
name: Hu, Jiahui
name: Jia, Yu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By using ab inito calculations within Density Functional Theory, we have explored the possible structures and various properties of porous AlN monolayer materials. Two kinds of porous AlN monolayer are identified, and the phonon dispersion spectrum together with the ab inito molecular dynamics simulations demonstrate that their structures are stable. We further show that these AlN porous monolayers have well-defined porous nanostructures and even higher specific surface areas, namely, which can be comparable with graphene, and can also be maintained evenly at high temperatures. Furthermore, both porous monolayers exhibit semiconductor properties with 2.89 eV and 2.86 eV indirect band gap, respectively. In addition, the electronic structures of such porous monolayers can be modulated by strains. The band gap of porous AlN monolayer experiences an indirect-direct transition when biaxial strain is applied. A moderate 9% compression can trigger this gap transition. These results indicate that the porous AlN monolayer may potentially be used for optoelectronic applications, as well as for underlying catalysts in the future.
Holographic quantum critical conductivity from higher derivative electrodynamics
Creators: name: Wu, Jian-Pin
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the conductivity from higher derivative electrodynamics in a holographic quantum critical phase (QCP). Two key features of this model are observed. First, a rescaling for the Euclidean frequency by a constant is needed when fitting the quantum Monte Carlo (QMC) data for the $O(2)$ QCP. We conclude that it is a common characteristic of the higher derivative electrodynamics. Second, both the Drude-like peak at low frequency and the pronounced peak can simultaneously emerge. They are more evident for the relevant operators than for the irrelevant operators. In addition, our result also further confirms that the conductivity for the $O(2)$ QCP is particle-like but not vortex-like. Finally, the electromagnetic (EM) duality is briefly discussed. The largest discrepancies of the particle-vortex duality in the boundary theory appear at the low frequency and the particle-vortex duality holds more well for the irrelevant operator than for the relevant operator.
description: 11 paes, 5 figures
Analysis of polysaccharide hydrolases secreted by Aspergillus flavipes FP-500 on corn cobs and wheat bran as complex carbon sources
Creators: name: Lizzete Ruth Torres-Barajas
name: Alvarez-Zúñiga, María Teresa
name: Mendoza-Hernández, Guillermo
name: Aguilar-Osorio, Guillermo
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Aspergillus flavipes FP-500 is a Mexican native strain that has been reported as a good producer of xylanases and pectinases; therefore, it promises a strong impact on biotechnology. To provide an overview of protein secretion by A. flavipes, we carried out a comparative proteome analysis of extracellular proteins in liquid cultures with two heterogeneous agro-industrial residues; corn cob (CC) and wheat bran (WB), as carbon sources. Extracellular proteins obtained from both cultures were identified using MS/MS spectrometry. We identified 134 proteins, which were classified into four groups: glycosyl hydrolases (GH), esterases/proteases, miscellaneous proteins, and unidentified proteins. Around 50% of the total proteins identified were GH such as xylanases, β-xylosidases, β-galactosidases, cellulolytic enzymes like β-glucosidase, endoglucanases, and cellobiohydrolases. From this family, a core of 22 (16%) of the proteins identified were found in both substrates, CC and WB, whereas 30% and 54% were unique for CC and WB, respectively. In the esterases/proteases group, proteases, lipases and esterases like feruloylesterases, and acetyl-xylanesterase were identified. Proteins with diverse functions such as monophosphate dehydrogenase or N-acetylglucosaminidase were present. Here, we present strong evidences indicating that the composition and heterogeneity of the used carbon source determine the specific set of protein secreted by the fungus.