cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inequality and labour-market performance. A survey beyond an elusive trade-off
Creators: name: Destefanis, Sergio
name: Mastromatteo, Giuseppe
Publisher: name: Universita' degli Studi di Salerno
Year: 2006
Subjects: Cross-Country labour-market comparisons
Wage inequality
Labour- market institutions
Product-market institutions

description: In this paper we assess the evolution of employment and wage inequality in Europe and the US labour markets over the past two decades. We find that the salient trends in wage structures are more complicated than implied by the so-called “unified theory”. Furthermore there is no clear cross-country correlation between changes in wage and employment rates by skill categories. This brings us to consider in detail other factors mentioned in the literature as contributing to poor labour-market performance in Europe. We find that strong unions, a factor often believed to bring about wage compression and poor labour-market performance, are not necessarily associated with the latter when bargaining is sufficiently coordinated. We also find that successful welfare reforms can bring about considerable improvements in performance without much impact on inequality. Finally we point out that the role of industrial structure and of the housing sector cannot be neglected when explaining cross-country labour-market performance.
Hipposideros ipposideros subsp. ridleyi Robinson and Kloss 1911
Creators: name: Voon-Ching Lim
name: Rosli Ramli
name: Bhassu, Subha
name: John-James Wilson
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Hipposideridae
Hipposideros
Hipposideros ipposideros
Hipposideros ridleyi robinson and kloss, 1911

description: Hipposideros ridleyi Robinson and Kloss, 1911 Hipposideros ridleyi Robinson and Kloss, 1911: 241; Botanic Gardens, SINGAPORE (H. N. Ridley, Esq., collector; MNM 2068/11) [146]. Common English name: Ridley’s Roundleaf Bat Barcode Index Number: Two DNA barcodes recorded as H. ridleyi (BM 470-04 and BM 471-04) are not associated with any BIN due to the short sequence length (< 500 bp) but are from Peninsular Malaysia (Fig 4). IUCN status: Vulnerable Recorded at: Pahang: Krau Wildlife Reserve [11, 42], Kuala Atok, National Park [44], Tasik Bera Forest Reserve [56], Bukit Ibam, Kemasul and Gunung Aais [100]; Kedah: Ulu Muda Forest Reserve [57]; Johor: Gunung Panti [100]; Kelantan: Gunung Stong State Park [100]. H. ridleyi has been reported roosting in small groups in fallen tree hollows, culverts, and drainage pipes [11, 14].
description: Published as part of Voon-Ching Lim, Rosli Ramli, Subha Bhassu & John-James Wilson, 2017, A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library, pp. 1-65 in PLoS ONE 12 (7) on pages 27-28, DOI: 10.1371/journal.pone.0179555, http://zenodo.org/record/4251352
description: {"references": ["146. Robinson HC, Kloss CB. On new animals from the Malay Peninsula and adjacent islands. Journal Fed Mal St Mus. 1911; 4: 241 - 246.", "11. Kingston T, Lim BL, Akbar Z. Bats of Krau wildlife reserve. Penerbit Universiti Kebangsaan Malaysia; 2006.", "42. Anan S, Rashdi AM, Abdul J, Lim BL. A survey of small mammals at Sungai Chenderoh, Perlok, Krau Wildlife Reserve, Pahang. Journal of Wildlife and Parks. 1998; 16: 104 - 109.", "44. Tingga RCT, Khan FA, Ridwan AM, Senawi J, Abdullah MT. Small Mammals from Kuala Atok, Taman Negara Pahang, Malaysia. Sains Malays. 2012; 41 (6): 659 - 669.", "56. Mohd-Hanif RM, Nur-Aida MT, Zahirunisa AR, Mohd-Ridwan AR, Abdullah MT. Contribution of regenerated forest in conservation of bats in Peninsular Malaysia. J Trop For Sci. 2015; 27 (4): 506 - 16.", "100. Lim LS, Mohd-Adnan A, Zubaid A, Struebig MJ, Rossiter SJ. Diversity of Malaysian insectivorous bat assemblages revisited. J Trop Ecol. 2014; 30 (02): 111 - 121.", "57. Norsham Y, Shariff F, Norhayati A, Nordin M, Lim BL. Pre-logging survey of mammal fauna at Sungai Weng sub-catchment, Ulu Muda Forest Reserve Forest Reserve, Kedah. Journal of Wildlife and Parks. 1999; 17: 28 - 43.", "14. Francis CM. A field guide to the mammals of South-East Asia. New Holland Publishers; 2008."]}
The Chinese comet observation in AD 773 January
Creators: name: Chapman, Jesse
name: Csikszentmihalyi, Mark
name: Neuhaeuser, Ralph
Publisher: name: arXiv
Year: 2014
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The strong 14C increase in the year AD 774/5 detected in one German and two Japanese trees was recently suggested to have been caused by an impact of a comet onto Earth and a deposition of large amounts of 14C into the atmosphere (Liu et al. 2014). The authors supported their claim using a report of a historic Chinese observation of a comet ostensibly colliding with Earth's atmosphere in AD 773 January. We show here that the Chinese text presented by those authors is not an original historic text, but that it is comprised of several different sources. Moreover, the translation presented in Liu et al. is misleading and inaccurate. We give the exact Chinese wordings and our English translations. According to the original sources, the Chinese observed a comet in mid January 773, but they report neither a collision nor a large coma, just a long tail. Also, there is no report in any of the source texts about "dust rain in the daytime" as claimed by Liu et al. (2014), but simply a normal dust storm. Ho (1962) reports sightings of this comet in China on AD 773 Jan 15 and/or 17 and in Japan on AD 773 Jan 20 (Ho 1962). At the relevant historic time, the Chinese held that comets were produced within the Earth's atmosphere, so that it would have been impossible for them to report a "collision" of a comet with Earth's atmosphere. The translation and conclusions made by Liu et al. (2014) are not supported by the historical record. Therefore, postulating a sudden increase in 14C in corals off the Chinese coast precisely in mid January 773 (Liu et al. 2014) is not justified given just the 230Th dating for AD 783 \pm 14.
description: 4 pages with one figure, paper in press in Astronomical Notes 2014
FORMULATION AND EVALUATION OF NIOSOMES OF KETOCONAZOLE
Creators: name: VikasnYadav, Dr Shabnam Ain, Dr Babita Kumar, Dr Qurratul Ain*
Publisher: name: Zenodo
Year: 2023

description: Formulation of niosome of ketoconazole was prepare by hand shaking method (thin film hydration technique) and then converting into gel by adding gelling agent Carbopol 934. Four formulations were prepared and characterized by different parameter like entrapment efficiency, drug content, morphology, pH, percentage yield, in- vitro release and stability studies. In study all formulations show good results but on the basis of drug content, percentage yield, in vitro release and stability studies F1 formulation found the best. Conclusion- Niosomes can be used for further formulation development like ointment creams or gel for topical use to treat fungal infections.
Keywords- Niosomes, Carbopol 934, In-vitro release, Percentage yield
Data mining techniques on astronomical spectra data. I : Clustering Analysis
Creators: name: Yang, Haifeng
name: Shi, Chenhui
name: Cai, Jianghui
name: Zhou, Lichan
name: Yang, Yuqing
name: Zhao, Xujun
name: He, Yanting
name: Hao, Jing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Clustering is an effective tool for astronomical spectral analysis, to mine clustering patterns among data. With the implementation of large sky surveys, many clustering methods have been applied to tackle spectroscopic and photometric data effectively and automatically. Meanwhile, the performance of clustering methods under different data characteristics varies greatly. With the aim of summarizing astronomical spectral clustering algorithms and laying the foundation for further research, this work gives a review of clustering methods applied to astronomical spectra data in three parts. First, many clustering methods for astronomical spectra are investigated and analysed theoretically, looking at algorithmic ideas, applications, and features. Secondly, experiments are carried out on unified datasets constructed using three criteria (spectra data type, spectra quality, and data volume) to compare the performance of typical algorithms; spectra data are selected from the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) survey and Sloan Digital Sky Survey (SDSS). Finally, source codes of the comparison clustering algorithms and manuals for usage and improvement are provided on GitHub.
description: 28 pages, 53 figures
Single-step transfer or exchange of multipartite quantum entanglement with minimum resources
Creators: name: Yang, Chui-Ping
name: Su, Qi-Ping
name: Zheng, Shi-Biao
name: Han, Siyuan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The transfer or exchange of multipartite quantum states is critical to the realization of large-scale quantum information processing and quantum communication. A challenging question in this context is: What is the minimum resource required and how to simultaneously transfer or exchange multipartite quantum entanglement between two sets of qubits. Finding the answer to these questions is of great importance to quantum information science. In this work, we demonstrate that by using a single quantum two-level system - the simplest quantum object - as a coupler arbitrary multipartite quantum states (either entangled or separable) can be transferred or exchanged simultaneously between two sets of qubits. Our findings offer the potential to significantly reduce the resources needed to construct and operate large-scale quantum information networks consisting of many multi-qubit registers, memory cells, and processing units.
description: 45 pages, 7 figures
Near-infrared Hubble Space Telescope polarimetry of a complete sample of narrow-line radio galaxies
Creators: name: Ramírez, E. A.
name: Tadhunter, C. N.
name: Axon, D.
name: Batcheldor, D.
name: Packham, C.
name: Lopez-Rodriguez, E.
name: Sparks, W.
name: Young, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an analysis of 2.05 $μ$m Hubble Space Telescope (HST) polarimetric data for a sample of 13 nearby Fanaroff-Riley type II (FRII) 3CR radio sources ($0.03
description: 11 pages, 4 figures, 2 tables, accepted for publication in MNRAS
Beyond the *IMD - filling the data gap
Creators: name: Spencer, Michael
Publisher: name: Zenodo
Year: 2023
Subjects: finance
cost of living
open source
spatial

description: Talk presented at FOSS4GUK, 2023: https://uk.osgeo.org/foss4guklocal2023/index.html
The Index of Multiple Deprivation is an essential tool for policy making and service delivery. It's a critical benchmark that brings together disparate data sources including crime statistics, service access, health and financial data. However, the last time the SIMD (Scotland's IMD) was updated was in 2020. Since then we've had Brexit, COVID and Russia's invasion of Ukraine leading to a cost of living crisis. At Smart Data Foundry, we are working with NatWest Group data to develop a financial wellbeing index at a weekly timestep to provide up-to-date information to decision-makers and bridge the gap between *IMD updates. Come to this talk to hear about the privacy-preserving FOSS tools we're using to develop this new financial wellbeing index.
Video: https://www.youtube.com/live/QT4QL6an1gI?si=hiowFJgFGrnDAdOa&t=4659
Robust Sandwiched B/TM/B Structures by Metal Intercalating into Bilayer Borophene Leading to Excellent Hydrogen Evolution Reaction
Creators: name: Chang, Yuan
name: Liu, Hongsheng
name: Liu, Jiaxu
name: Zhao, Jijun
name: Zhang, Yong-Wei
name: Gao, Junfeng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Bilayer borophene, very recently synthesized on Ag and Cu, possesses extremely flat large surface and excellent conductivity. Besides, the van der Waals gap of bilayer borophene can be intercalated by metal atoms, thereby tailoring the properties of bilayer borophene. Herein, we propose that sandwiched B/TM/B (TM=Co, Ni, Cu, Pd) could be a new 2D formation by transiton metal atoms intercalated into bilayer borophene network, it is quiet robust with both energetic, structural and thermal stability, and exhibits heat resistance of at least 1300 K. Besides, it is novel platform for electrocatalytic hydrogen evolution reaction (HER). The interecalation metal atom serves as single-atomic catalyst, which acting the nonmetal boron layers. Beyond that, the transtion metal is protected by outside boron layers from being corroded by acidic/alkaline solution. B/Cux/B, B/Pdx/B and B/Alx/B with different metal coverage exhibit defect-independent extremely low HER free energy in the range of -0.162 ~ 0.179 eV, -0.134 ~ 0.183 eV and -0.082 ~ 0.086 eV which are comparable to noble metal Pt. Combining excellent conduction, high structural and thermal stability, low resistance to intercalated behaviour, effortless water splitting process, excellent defect-independent catalytic performance, cheapness and abundance of raw materials, free of corrodation, 2D sandwiched B/TM/B (TM=Co, Ni, Cu, Pd) is believed to promising for electrocatalytic HER applications.
The elite on the Warpath - Finland and the Russian combat organizations in 1918-1939
Creators: name: Aleksi, Aleksi
Publisher: name: Петербургский исторический журнал
Year: 2017
Subjects: FINLAND
WHITE éMIGRé ORGANIZATIONS
SOVIET UNION
1918-1919

description: Author examines the White émigré organizations that operated in the Finnish territory in 1918-1939 and their armed combat against the Soviet Union. Not only where there counter-revolutionary combat organizations operating in Finland, but government representatives also participated in various plots and even terrorist attacks.
Linear spanning sets for matrix spaces
Creators: name: Micheli, Giacomo
name: Rosenthal, Joachim
name: Vettori, Paolo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 15A03 (Primary) 15A69 (Secondary)

description: Necessary and sufficient conditions are given on matrices $A$, $B$ and $S$, having entries in some field $\mathbb F$ and suitable dimensions, such that the linear span of the terms $A^iSB^j$ over $\mathbb F$ is equal to the whole matrix space. This result is then used to determine the cardinality of subsets of $\mathbb F[A]S\mathbb F[B]$ when $\mathbb F$ is a finite field.
description: 15 pages
Comment on "Analog Schwarzschild-like geometry in fluids with external pressure''
Creators: name: Pitelli, João Paulo M.
name: Mosna, Ricardo A.
name: de Oliveira, Christyan C.
name: Richartz, Maurício
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In Ref. [1], exact (not only conformally related) analogue models for the Schwarzschild and Reissner-Nordström spacetimes were found. The background non-relativistic fluid flow was sustained by an external body force which is not affected by the linearised fluctuations. Following a different route, by modelling the external force as the gradient of an external pressure, it was shown in~\cite{bilic} that the speed of sound is significantly modified. This effective speed of sound turns out to be inconsistent with the continuity equation. In this comment we analyse these two contradictory conclusions. We first show that the heuristic justification for the introduction of the external force via a variational principle given in Ref. [2] is conceptually incorrect. Then, by adding the external force appropriately, we show that the conclusions in [1] remain valid.
description: 4 pages. Matches published version
Supplementary figures from The small compound Icerguastat reduces muscle defects in oculopharyngeal muscular dystrophy through the PERK pathway of the unfolded protein response
Creators: name: Naït-Saïdi, Rima
name: Chartier, Aymeric
name: Abgueguen, Emmanuelle
name: Guédat, Philippe
name: Simonelig, Martine
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology

description: Oculopharyngeal muscular dystrophy (OPMD) is an autosomal dominant disease characterized by the progressive degeneration of specific muscles. OPMD is due to a mutation in the gene encoding poly(A) binding protein nuclear 1 (PABPN1) leading to a stretch of 11 to 18 alanines at N-terminus of the protein, instead of 10 alanines in the normal protein. This alanine tract extension induces the misfolding and aggregation of PABPN1 in muscle nuclei. Here, using Drosophila OPMD models, we show that the unfolded protein response (UPR) is activated in OPMD upon endoplasmic reticulum stress. Mutations in components of the PERK branch of the UPR reduce muscle degeneration and PABPN1 aggregation characteristic of the disease. We show that oral treatment of OPMD flies with Icerguastat (previously IFB-088), a Guanabenz acetate derivative that shows lower side effects, also decreases muscle degeneration and PABPN1 aggregation. Furthermore, the positive effect of Icerguastat depends on GADD34, a key component of the phosphatase complex in the PERK branch of the UPR. This study reveals the key contribution of the ER stress in OPMD pathogenesis and provides a proof-of-concept for Icerguastat interest in future pharmacological treatments of OPMD.
Excellent HER and OER Catalyzing Performance of Se-vacancies in Defects-engineering PtSe2: From Simulation to Experiment
Creators: name: Chang, Yuan
name: Zhai, Panlong
name: Hou, Jungang
name: Zhao, Jijun
name: Gao, Junfeng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Facing with grave climate change and enormous energy demand, catalyzer gets more and more important due to its significant effect on reducing fossil fuels consumption. Hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) by water splitting are feasible ways to produce clean sustainable energy. Here we systematically explored atomic structures and related STM images of Se defects in PtSe2. The equilibrium fractions of vacancies under variable conditions were detailly predicted. Besides, we found the vacancies are highly kinetic stable, without recovering or aggregation. The Se vacancies in PtSe2 can dramatically enhance the HER performance, comparing with, even better than Pt(111). Beyond, we firstly revealed that PtSe2 monolayer with Se vacancies is also a good OER catalyst. The excellent bipolar catalysis of Se vacancies were further confirmed by experimental measurements. We produced defective PtSe2 by direct selenization of Pt foil at 773 K using a CVD process. Then we observed the HER and OER performance of defective PtSe2 is much highly efficient than Pt foils by a series of measurements. Our work with compelling theoretical and experimental studies indicates PtSe2 with Se defects is an ideal bipolar candidate for HER and OER.
IceCube astrophysical neutrinos without a spectral cutoff and (10^15-10^17) eV cosmic gamma radiation
Creators: name: Kalashev, O. E.
name: Troitsky, S. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a range of unbroken power-law fits to the astrophysical-neutrino spectrum consistent with the most recent published IceCube data at the 68\% confidence level. Assuming that the neutrinos originate in decays of pi mesons, we estimate accompanying gamma-ray fluxes for various distributions of sources, taking propagation effects into account. We then briefly discuss existing experimental results constraining PeV to EeV diffuse gamma-ray flux and their systematic uncertainties. Several scenarios are marginally consistent both with the KASKADE and CASA-MIA upper limits at (10^15-10^16) eV and with the EAS-MSU tentative detection at ~10^17 eV, given large systematic errors of the measurements. Future searches for the diffuse gamma-ray background at sub-PeV to sub-EeV energies just below present upper limits will give a crucial diagnostic tool for distinguishing between the Galactic and extragalactic models of the origin of the IceCube events.
description: 11 pages, 3 figures, revtex. V.2: references added and corrected
Mid-infrared optical properties of non-magnetic-metal/CoFeB/MgO heterostructures
Creators: name: Flores-Camacho, J. M.
name: Rana, B.
name: Balderas-Navarro, R. E.
name: Lastras-Martínez, A.
name: Otani, Y.
name: Puebla, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the optical characterization of non-magnetic metal/ferromagnetic (Co$_{20}$Fe$_{60}$B$_{20}$)/MgO heterostructures and interfaces by using mid infrared spectroscopic ellipsometry at room temperature. We extracted for the mid-infrared range the dielectric function of Co$_{20}$Fe$_{60}$B$_{20}$, that is lacking in literature, from a multisample analysis. From the optical modelling of the heterostructures we detected and determined the dielectric tensor properties of a two-dimensional gas (2DEG) forming at the non-magnetic metal and the CoFeB interface. These properties comprise independent Drude parameters for the in-plane and out-of plane tensor components, with the latter having an epsilon-near-zero frequency within our working spectral range. A feature assigned to spin-orbit coupling (SOC) is identified. Furthermore, it is found that both, the interfacial properties, 2DEG Drude parameters and SOC strength, and the apparent dielectric function of the MgO layer depend on the type of the underlying nonmagnetic metal, namely, Pt, W, or Cu. The results reported here should be useful in tailoring novel phenomena in such types of heterostructures by assessing their optical response noninvasively, complementing existing characterization tools such as angle-resolved photoemission spectroscopy, and those related to electron/spin transport.
description: 11 pages, 7 figures. See supplemental material in 10.1088/1361-6463/acd00f/meta
Dust hot spots at 10 au scales around the Class 0 binary IRAS 16293-2422 A: a departure from the passive irradiation model
Creators: name: Maureira, M. J.
name: Gong, M.
name: Pineda, J. E.
name: Liu, H. B.
name: Silsbee, K.
name: Caselli, P.
name: Zamponi, J.
name: Segura-Cox, D.
name: Schmiedeke, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Characterizing the physical conditions at disk scales in Class 0 sources is crucial for constraining the protostellar accretion process and the initial conditions for planet formation. We use ALMA 1.3 mm and 3 mm observations to investigate the physical conditions of the dust around the Class 0 binary IRAS 16293-2422 A (sep <100 au) down to ~10 au scales. The circumbinary material's spectral index, alpha, has a median of 3.1 and a dispersion of ~0.2, providing no firm evidence of mm-sizes grains therein. Continuum substructures with brightness temperature peaks of T_b~60-80 K at 1.3 mm are observed near the disks at both wavelengths. These peaks do not overlap with strong variations of alpha, indicating they trace high-temperature spots instead of regions with significant optical depth variations. The lower limits to the inferred dust temperature in the hot spots are 122, 87 and 49 K. Depending on the assumed dust opacity index, these values can be several times higher. They overlap with high gas temperatures and enhanced complex organic molecular (COM) emission. This newly resolved dust temperature distribution is in better agreement with the expectations from mechanical instead of the most commonly assumed radiative heating. In particular, we find that the temperatures agree with shock heating predictions. This evidence and recent studies highlighting accretion heating in Class 0 disks suggest that mechanical heating (shocks, dissipation powered by accretion, etc.) is important during the early stages and should be considered when modeling and measuring properties of deeply embedded protostars and disks.
description: 18 pages, 7 figures. Published in ApJL
Reference Capabilities for Flexible Memory Management: Extended Version
Creators: name: Arvidsson, Ellen
name: Castegren, Elias
name: Clebsch, Sylvan
name: Drossopoulou, Sophia
name: Noble, James
name: Parkinson, Matthew J.
name: Wrigstad, Tobias
Publisher: name: arXiv
Year: 2023
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Verona is a concurrent object-oriented programming language that organises all the objects in a program into a forest of isolated regions. Memory is managed locally for each region, so programmers can control a program's memory use by adjusting objects' partition into regions, and by setting each region's memory management strategy. A thread can only mutate (allocate, deallocate) objects within one active region -- its "window of mutability". Memory management costs are localised to the active region, ensuring overheads can be predicted and controlled. Moving the mutability window between regions is explicit, so code can be executed wherever it is required, yet programs remain in control of memory use. An ownership type system based on reference capabilities enforces region isolation, controlling aliasing within and between regions, yet supporting objects moving between regions and threads. Data accesses never need expensive atomic operations, and are always thread-safe.
description: 87 pages, 10 figures, 5 listings, 4 tables. Extended version of paper to be published at OOPSLA 2023
Longterm Optical Monitoring of Bright BL Lacertae Objects with ATOM: Spectral Variability and Multiwavelength Correlations
Creators: name: Wierzcholska, Alicja
name: Ostrowski, Michał
name: Stawarz, Łukasz
name: Wagner, Stefan
name: Hauser, Marcus
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Blazars are the established sources of an intense and variable non-thermal radiation extending from radio wavelengths up to HE and VHE gamma-rays. Understanding the spectral evolution of blazars in selected frequency ranges, as well as multi-frequency correlations in various types of blazar sources, is of a primary importance for constraining the blazar physics. Here we present the results of a long-term optical monitoring of a sample of 30 blazars of the BL Lac type. We study the optical color-magnitude correlation patterns emerging in the analyzed sample, and compare the optical properties of the targets with the high-energy gamma-ray and high-frequency radio data. The optical observations were carried out in R and B filters using ATOM telescope. Each object was observed during at least 20 nights in the period 2007-2012. We find significant global color-magnitude correlations in 40 % of the sample. The sources which do not display any clear chromatism often do exhibit bluer-when-brighter (bwb) behavior but only in isolated shorter time intervals. We also discovered spectral state transitions at optical wavelengths in several sources. Finally, we find that the radio, optical, and gamma-ray luminosities of the sources obey almost linear correlations, which seem however induced, at least partly, by the redshift dependance, and may be also affected by non-simultaneousness of the analyzed dataset. We argue that the observed bwb behavior is intrinsic to the jet emission regions, at least for some of the analyzed blazars, rather than resulting from the contamination of the measured flux by the starlight of host galaxies. We also conclude that the significance of color-magnitude scalings does not correlate with the optical color, but instead seems to depend on the source luminosity, in a sense that these are the lowest-luminosity BL Lac objects which display the strongest correlations.
description: 16 pages, 9 figures, accepted for publication in Astronomy & Astrophysics
Data Management Plans: How FAIR, CARE, and OCAP are applied in this research.
Creators: name: Raymond, Vanessa
Publisher: name: Zenodo
Year: 2022
Subjects: FAIR data
CARE data
OCAP data
data management plans
Indigenous data sovereignty

description: Section for a data management plan on how information management systems FAIR, CARE, and OCAP are applied in the data management activity
description: {"references": ["Wilkinson, M.D. et al. The FAIR guiding principles for scientific data management and stewardship. Sci. Data. 3, 160018 (2016)", "Carroll, SR, Rodriguez-Lonebear, D and Martinez, A. 2019. Indigenous Data Governance: Strategies from United States Native Nations. Data Science Journal, 18(31): 1\u201315. DOI: https://doi.org/10.5334/dsj-2019-031", "First Nation's Information Governance Centre. 2018. The First Nations Principles of OCAP\u00ae. Available at https://fnigc.ca/ocap"]}
Using Molecular Gas Observations to Guide Initial Conditions for Star Cluster Simulations
Creators: name: Sills, Alison
name: Rieder, Steven
name: Buckner, Anne S. M.
name: Hacar, Alvaro
name: Zwart, Simon Portegies
name: Teixeira, Paula S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The earliest evolution of star clusters involves a phase of co-existence of both newly-formed stars, and the gas from which they are forming. Observations of the gas in such regions provide a wealth of data that can inform the simulations which are needed to follow the evolution of such objects forward in time. We present a method for transforming the observed gas properties into initial conditions for simulations that include gas, stars, and ongoing star formation. We demonstrate our technique using the Orion Nebula Cluster. Since the observations cannot provide all the necessary information for our simulations, we make choices for the missing data and assess the impact of those choices. We find that the results are insensitive to the adopted choices of the gas velocity in the plane of the sky. The properties of the surrounding gas cloud (e.g. overall density and size), however, have an effect on the star formation rate and pace of assembly of the resultant star cluster. We also analyze the stellar properties of the cluster and find that the stars become more tightly clustered and in a stronger radial distribution even as new stars form in the filament.
description: 11 pages, 12 figures, accepted for publication in MNRAS
Circuit QED: Implementation of the three-qubit refined Deutsch-Jozsa quantum algorithm
Creators: name: Su, Qi-Ping
name: Yang, Chui-Ping
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a protocol to construct the 35 $f$-controlled phase gates of a three-qubit refined Deutsch-Jozsa (DJ) algorithm, by using single-qubit $σ_z$ gates, two-qubit controlled phase gates, and two-target-qubit controlled phase gates. Using this protocol, we discuss how to implement the three-qubit refined DJ algorithm with superconducting transmon qutrits resonantly coupled to a single cavity. Our numerical calculation shows that implementation of this quantum algorithm is feasible within the present circuit QED technique. The experimental realization of this algorithm would be an important step toward more complex quantum computation in circuit QED.
description: 18 pages, 5 figures, 2 tables, accepted by Quantum Information Processing. arXiv admin note: text overlap with arXiv:1307.1375
Conditional Generative Adversarial Network for keystroke presentation attack
Creators: name: Eizaguirre-Peral, Idoia
name: Segurola-Gil, Lander
name: Zola, Francesco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Cybersecurity is a crucial step in data protection to ensure user security and personal data privacy. In this sense, many companies have started to control and restrict access to their data using authentication systems. However, these traditional authentication methods, are not enough for ensuring data protection, and for this reason, behavioral biometrics have gained importance. Despite their promising results and the wide range of applications, biometric systems have shown to be vulnerable to malicious attacks, such as Presentation Attacks. For this reason, in this work, we propose to study a new approach aiming to deploy a presentation attack towards a keystroke authentication system. Our idea is to use Conditional Generative Adversarial Networks (cGAN) for generating synthetic keystroke data that can be used for impersonating an authorized user. These synthetic data are generated following two different real use cases, one in which the order of the typed words is known (ordered dynamic) and the other in which this order is unknown (no-ordered dynamic). Finally, both keystroke dynamics (ordered and no-ordered) are validated using an external keystroke authentication system. Results indicate that the cGAN can effectively generate keystroke dynamics patterns that can be used for deceiving keystroke authentication systems.
Deuterium chemistry of dense gas in the vicinity of low-mass and massive star forming regions
Creators: name: Awad, Zainab
name: Viti, Serena
name: Bayet, Estelle
name: Caselli, Paola
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The standard interstellar ratio of deuterium to hydrogen (D/H) atoms is $\sim 1.5 \times 10^{-5}$. However, the deuterium fractionation is in fact found to be enhanced, to different degrees, in cold, dark cores, hot cores around massive star forming regions, lukewarm cores, and warm cores ({\it hereafter}, hot corinos) around low-mass star forming regions. In this paper, we investigate the overall differences in the deuterium chemistry between hot cores and hot corinos. We have modelled the chemistry of dense gas around low-mass and massive star forming regions using a gas-grain chemical model. We investigate the influence of varying the core density, the depletion efficiency of gaseous species on to dust grains, the collapse mode and the final mass of the protostar on the chemical evolution of star forming regions. We find that the deuterium chemistry is, in general, most sensitive to variations of the depletion efficiency on to grain surfaces, in agreement with observations. In addition, the results showed that the chemistry is more sensitive to changes in the final density of the collapsing core in hot cores than in hot corinos. Finally, we find that ratios of deuterated sulphur bearing species in dense gas around hot cores and corinos may be good evolutionary indicators in a similar way as their non deuterated counterparts.
description: 16 pages, 6 figures, 5 tables. Accepted for publication in Monthly Notices of the Royal Astronomical Society Main Journal
A Study of Dust and Gas at Mars from Comet C/2013 A1 (Siding Spring)
Creators: name: Kelley, Michael S. P.
name: Farnham, Tony L.
name: Bodewits, Dennis
name: Tricarico, Pasquale
name: Farnocchia, Davide
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Although the nucleus of comet C/2013 A1 (Siding Spring) will safely pass Mars in October 2014, the dust in the coma and tail will more closely approach the planet. Using a dynamical model of comet dust, we estimate the impact fluence. Based on our nominal model no impacts are expected at Mars. Relaxing our nominal model's parameters, the fluence is no greater than ~10^-7 grains/m^2 for grain radii larger than 10 μm. Mars orbiting spacecraft are unlikely to be impacted by large dust grains, but Mars may receive as many as ~10^7 grains, or ~100 kg of total dust. We also estimate the flux of impacting gas molecules commonly observed in comet comae.
description: Accepted for publication in Astrophysical Journal Letters. 7 pages, 3 figures, 2 tables
Doppler confirmation of TESS planet candidate TOI1408.01: grazing transit and likely eccentric orbit
Creators: name: Galazutdinov, G. A.
name: Baluev, R. V.
name: Valyavin, G.
name: Aitov, V.
name: Gadelshin, D.
name: Valeev, A.
name: Sendzikas, E.
name: Sokov, E.
name: Mitiani, G.
name: Burlakova, T.
name: Yakunin, I.
name: Antonyuk, K. A.
name: Vlasyuk, V.
name: Romanyuk, I.
name: Rzaev, A.
name: Yushkin, M.
name: Ivanova, A.
name: Tavrov, A.
name: Korablev, O.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report an independent Doppler confirmation of the TESS planet candidate orbiting an F-type main sequence star TOI-1408 located 140 pc away. We present a set of radial velocities obtained with a high-resolution fiber-optic spectrograph FFOREST mounted at the SAO RAS 6-m telescope (BTA-6). Our self-consistent analysis of these Doppler data and TESS photometry suggests a grazing transit such that the planet obscures its host star by only a portion of the visible disc. Because of this degeneracy, the radius of TOI-1408.01 appears ill-determined with lower limit about $\sim$1 R$_{\rm Jup}$, significantly larger than in the current TESS solution. We also derive the planet mass of $1.69\pm0.20$~$M_{\rm Jup}$ and the orbital period $\sim4.425$ days, thus making this object a typical hot Jupiter, but with a significant orbital eccentricity of $0.259\pm0.026$. Our solution may suggest the planet is likely to experience a high tidal eccentricity migration at the stage of intense orbital rounding, or may indicate possible presence of other unseen companions in the system, yet to be detected.
description: 5 pages, 3 figures
Holographic superfluid with excited states
Creators: name: Wang, Dong
name: Pan, Qiyuan
name: Lai, Chuyu
name: Jing, Jiliang
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct a novel family of solutions of the holographic superfluid model with the excited states in the probe limit. We observe that the higher excited state or larger superfluid velocity will make the scalar hair more difficult to be developed, and the higher excited state or smaller mass of the scalar field makes it easier for the emergence of translating point from the second-order transition to the first-order one. We note that the difference of the critical chemical potential between the consecutive states increases as the superfluid velocity increases. Interestingly, the "Cave of Winds" phase structure will disappear but the first-order phase transition occurs for the excited states, which is completely different from the holographic superfluid model with the ground state. This means that the excited state will hinder the appearance of the Cave of Winds. Moreover, we find that there exist additional poles in Im[$σ(ω)$] and delta functions in Re[$σ(ω)$] arising at low temperature for the excited states, and the higher excited state or larger superfluid velocity results in the larger deviation from the expected relation in the gap frequency.
description: 14 pages, 5 figures, 1 table
A two-scale FEM-BAM approach for fingerpad friction under electroadhesion
Creators: name: Forsbach, Fabian
name: Heß, Markus
name: Papangelo, Antonio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The complex physics behind electroadhesion-based tactile displays poses an enormous modeling challenge since not only the fingerpad structure with multiple nonlinear layers, but also the roughness at the microscopic scale play a decisive role. To investigate tactile perception, a potential model should also offer the possibility to extract mechanical stimuli at the sites of the relevant mechanoreceptors. In this paper, we present a two-scale approach that involves a finite element model (FEM) at the macroscopic scale and a simple bearing area model (BAM) that accounts for the measured roughness on the papillary ridges. Both separate scales couple in an iterative way using the concept of an equivalent air gap. We show that the electroadhesion-induced changes in friction and contact area predicted by the proposed model are in qualitative agreement with recent experimental studies. In a simple example, we demonstrate that the model can readily be extended by a neural dynamics model to investigate the tactile perception of electroadhesion.
description: 22 pages, 9 figures
Pre-flight integration and characterization of the SPIDER balloon-borne telescope
Creators: name: Rahlin, A. S.
name: Ade, P. A. R.
name: Amiri, M.
name: Benton, S. J.
name: Bock, J. J.
name: Bond, J. R.
name: Bryan, S. A.
name: Chiang, H. C.
name: Contaldi, C. R.
name: Crill, B. P.
name: Doré, O.
name: Farhang, M.
name: Filippini, J. P.
name: Fissel, L. M.
name: Fraisse, A. A.
name: Gambrel, A. E.
name: Gandilo, N. N.
name: Golwala, S.
name: Gudmundsson, J. E.
name: Halpern, M.
name: Hasselfield, M. F.
name: Hilton, G.
name: Holmes, W. A.
name: Hristov, V. V.
name: Irwin, K. D.
name: Jones, W. C.
name: Kermish, Z. D.
name: Kuo, C. L.
name: MacTavish, C. J.
name: Mason, P. V.
name: Megerian, K.
name: Moncelsi, L.
name: Morford, T. A.
name: Nagy, J. M.
name: Netterfield, C. B.
name: O'Brient, R.
name: Reintsema, C.
name: Ruhl, J. E.
name: Runyan, M. C.
name: Shariff, J. A.
name: Soler, J. D.
name: Trangsrud, A.
name: Tucker, C.
name: Tucker, R. S.
name: Turner, A. D.
name: Weber, A. C.
name: Wiebe, D. V.
name: Young, E. Y.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of integration and characterization of the SPIDER instrument after the 2013 pre-flight campaign. SPIDER is a balloon-borne polarimeter designed to probe the primordial gravitational wave signal in the degree-scale $B$-mode polarization of the cosmic microwave background. With six independent telescopes housing over 2000 detectors in the 94 GHz and 150 GHz frequency bands, SPIDER will map 7.5% of the sky with a depth of 11 to 14 $μ$K$\cdot$arcmin at each frequency, which is a factor of $\sim$5 improvement over Planck. We discuss the integration of the pointing, cryogenic, electronics, and power sub-systems, as well as pre-flight characterization of the detectors and optical systems. SPIDER is well prepared for a December 2014 flight from Antarctica, and is expected to be limited by astrophysical foreground emission, and not instrumental sensitivity, over the survey region.
description: 25 pages, 14 figures. Presented at SPIE Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, June 26, 2014. To be published in Proceedings of SPIE Volume 9153
El principio de garantía de ejecución de la sentencia y los principios que permiten su aplicación antes y después de la Reforma Procesal Penal en Panamá
Creators: name: Miller Admiralda
Publisher: name: Zenodo
Year: 2022
Subjects: garantías en la ejecución de sentencia

description: Este ensayo tiene como propósito un breve análisis sobre el alcance del principio en la ejecución de sentencia en el nuevo código procesal penal
Temperature dependence of radiation damage annealing of Silicon Photomultipliers
Creators: name: De Angelis, Nicolas
name: Kole, Merlin
name: Cadoux, Franck
name: Hulsman, Johannes
name: Kowalski, Tomasz
name: Kusyk, Sebastian
name: Mianowski, Slawomir
name: Rybka, Dominik
name: Stauffer, Jerome
name: Swakon, Jan
name: Wrobel, Damian
name: Wu, Xin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The last decade has increasingly seen the use of silicon photomultipliers (SiPMs) instead of photomultiplier tubes (PMTs). This is due to various advantages of the former on the latter like its smaller size, lower operating voltage, higher detection efficiency, insensitivity to magnetic fields and mechanical robustness to launch vibrations. All these features make SiPMs ideal for use on space based experiments where the detectors require to be compact, lightweight and capable of surviving launch conditions. A downside with the use of this novel type of detector in space conditions is its susceptibility to radiation damage. In order to understand the lifetime of SiPMs in space, both the damage sustained due to radiation as well as the subsequent recovery, or annealing, from this damage have to be studied. Here we present these studies for three different types of SiPMs from the Hamamatsu S13360 series. Both their behaviour after sustaining radiation equivalent to 2 years in low earth orbit in a typical mission is presented, as well as the recovery of these detectors while stored in different conditions. The storage conditions varied in temperature as well as in operating voltage. The study found that the annealing depends significantly on the temperature of the detectors with those stored at high temperatures recovering significantly faster and at recovering closer to the original performance. Additionally, no significant effect from a reasonable bias voltage on the annealing was observed. Finally the annealing rate as a function of temperature is presented along with various operating strategies for the future SiPM based astrophysical detector POLAR-2 as well as for future SiPM based space borne missions.
description: 33 pages, 24 figures
Rhinolophus convexus Csorba 1997
Creators: name: Voon-Ching Lim
name: Rosli Ramli
name: Bhassu, Subha
name: John-James Wilson
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Rhinolophidae
Rhinolophus
Rhinolophus convexus

description: Rhinolophus convexus Csorba, 1997 Rhinolophus convexus Csorba, 1997: 343; Gunung Jasar, Tanah Rata, Cameron Highlands, Pahang State, MALAYSIA, 4˚28’ N, 101˚ 22’ E, 1600m (G. Csorba and F. Zilahy, collector; HNHM 95.55.14) [158]. Common English name: Convex Horseshoe Bat Barcode Index Number: There are no DNA barcodes recorded under this name on BOLD. IUCN status: Data Deficient; the uncertain status could be due to the rarity of this species with only three or four known specimens [159]. Recorded at: Pahang: Gunung Jasar at Tanah Rata in Cameron Highlands [158]. R. convexus is known only from upper montane rainforest with elevations of 1600 m and above in Peninsular Malaysia [14] and is possibly endemic to Malaysia [159].
description: Published as part of Voon-Ching Lim, Rosli Ramli, Subha Bhassu & John-James Wilson, 2017, A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library, pp. 1-65 in PLoS ONE 12 (7) on page 31, DOI: 10.1371/journal.pone.0179555, http://zenodo.org/record/4251352
description: {"references": ["158. Csorba G. Description of a new species of Rhinolophus (Chiroptera: Rhinolophidae) from Malaysia. J Mammal. 1997; 78 (2): 342 - 347.", "159. Csorba G, Bumrungsri S, Francis CM, Gorfol T, Bates PJJ. Rhinolophus convexus; 2016 [cited 2017 Jan 16]. Database: The IUCN Red List of Threatened Species 2016: e. T 40037 A 22060825 [Internet]. Available from: http: // dx. doi. org / 10.2305 / IUCN. UK. 2016 - 2. RLTS. T 40037 A 22060825. en", "14. Francis CM. A field guide to the mammals of South-East Asia. New Holland Publishers; 2008."]}