cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Remarks on the theta decomposition of vector-valued Jacobi forms
Creators: name: Williams, Brandon
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F27, 11F50

description: We study the theta decomposition of Jacobi forms of nonintegral lattice index for a representation that arises in the theory of Weil representations associated to even lattices, and suggest possible applications.
description: 13 pages
Causal structure in networks
Creators: name: Clough, James
Publisher: name: Imperial College London
Year: 2017

description: The `network geometry' approach in network science has in recent years had success in describing complex network topologies using simple geometric models. Previous work has focussed on using Riemannian spaces such as flat Euclidean space or curved Hyperbolic space to describe network structure. Here, the geometry of Lorentzian spacetime is used to model and describe the structure of a special class of networks, directed acyclic graphs. These networks share important features, such as causal structure, with this geometry making this approach a natural extension of the network geometry programme. By recognising the relationship between these networks and this family of geometries, techniques from physical theories of discrete spacetime may be brought into the domain of network science allowing new methods, models, and analyses to be developed. Using network datasets which form directed acyclic graphs, primarily citation networks, as illustrations, I show how characterising a network by its causal structure aids traditional analysis, how networks can be associated with spacetimes of a specific dimension and curvature, and how they may be embedded in a spacetime. Numerous applications are discussed relevant to both citation networks and directed acyclic graphs more generally, and computational implementations of the methods discussed are made available.
Measuring the Virial Temperature of Galactic Halos Through Electron Scattering of Quasar Emission Lines
Creators: name: Loeb, Abraham
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Semi-analytic models of galaxy formation postulate the existence of virialized gaseous halos around galaxies at high redshifts. A small fraction of the light emitted by any high-redshift quasar is therefore expected to scatter off the free electrons in the halo of its host galaxy. The broadening of the scattered emission lines of the quasar can be used to measure the temperature of these electrons. For gas in virial equilibrium, the velocity width of the scattered line profile is larger by a factor of (m_p/m_e)^{1/2}=43 than the velocity dispersion of the host galaxy and reaches >10,000 km/s for the massive galaxies and groups in which bright quasars reside. In these systems, the scattered width exceeds the intrinsic width of the quasar lines and hence can be used to measure the virial temperature of the quasar host. The high degree of polarization of the scattered radiation can help filter out the extended scattered light from the central emission by the quasar and its host galaxy. The signal-to-noise ratio of the spectral broadening can be enhanced by matching the full spectrum of the scattered radiation to a template of the unscattered quasar spectrum. Although the central fuzz around low-redshift quasars is dominated by starlight, the fuzz around high-redshift quasars might be dominated by scattering before galaxies have converted most of their gas reservoirs into stars.
description: 10 pages, 1 figures, submitted to ApJ Letters
The Angular Power Spectrum of BATSE 3B Gamma-Ray Burst
Creators: name: Tegmark, Max
name: Hartmann, Dieter
name: Briggs, Michael
name: Meegan, Charles
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compute the angular power spectrum C_l from the BATSE 3B catalog of 1122 gamma-ray bursts, and find no evidence for clustering on any scale. These constraints bridge the entire range from small scales (which probe source clustering and burst repetition) to the largest scales (which constrain possible anisotropies from the Galactic halo or from nearby cosmological large scale structures). We develop an analysis technique that takes the angular position errors into account, which enables us to place tight upper limits on the clustering down to scales l\approx 60, corresponding to a few degrees on the sky. The minimum-variance burst weighting that we employ is graphically visualized as an all-sky map where each burst is smeared out by an amount corresponding to its position uncertainty. We also present separate band-pass filtered sky maps for the quadrupole term and for the multipole-ranges l=3-10 and l=11-30, so that the fluctuations on different angular scales can be separately inspected for visual features such as localized ``hot spots" or structures aligned with the Galactic plane. These filtered maps reveal no apparent deviations from isotropy.
description: 31 pages, with 10 figures included. Postscript. Submitted to ApJ. Latest version (and color figures) at http://astro.berkeley.edu/~max/bursts.html (faster from the US), from http://www.mpa-garching.mpg.de/~max/bursts.html (faster from Europe) or from max@mppmu.mpg.de
Flow structure and coherence in the wake of a lifting wing with multiscale sinusoidal cut-in trailing edge serrations
Creators: name: Prigent, Simon
Publisher: name: Imperial College London
Year: 2017

description: This thesis presents an experimental investigation into the wake of a lifting wing with multiscale cut-in trailing edge serrations. More specifically, it looks into how the wake is affected by the serration patterns, both in terms of mean properties and dynamic and spectral information. The flow is investigated by means of particle image velocimetry and hot-wire anemometry to combine the dynamic and spatial strengths of the two experimental techniques. The response of a wing fitted with such serrations and subjected to unsteady inflows is studied by means of lift measurement and hot-wire anemometry in the wake. Cut-in trailing edges are found to generate a strong secondary flow from below the peaks towards the troughs. Such a flow pattern increases the velocity deficit behind the peaks while re-energising the wake behind the troughs, giving rise to span-wise inhomogeneity of the velocity deficit and wake width which persists far downstream. The introduction of cut-in serrations exhibits bluntness that in turn generates vortex shedding that locks into a bent cell structure. The use of multiscale patterns weakens the cell structures which translates into a reduction of vortex shedding intensity as well as a reduction of span-wise correlation at both vortex shedding and low frequencies. The use of an alternative sharp approach offers a compromise that gives less coherence reduction on the edges of the wake but avoids the introduction of a clear vortex shedding signal. Under unsteady inflow conditions, the 2-iteration multiscale pattern provide the strongest overall reduc- tion of coherence. Statistical analysis of lift fluctuations under unsteady and intermittent inflow conditions reveals that the single tone sinusoidal pattern has the strongest reduction of the distribution’s tails. Finally, the multiscale patterns are found to smooth the time-evolution of the lift fluctuations when the wing is submitted to a sinusoidal variation of the flow incidence.
Colors, Luminosity Function and Counts of Galaxies
Creators: name: Saracco, P.
name: Chincarini, G.
name: Iovino, A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Standard models for deep galaxy counts are based on luminosity functions (LF) with relatively flat faint end ($α\sim-1.0$). Galaxy counts in the B--band exceed the prediction of such models by a factor of 2 to more than 5, forcing the introduction of strong luminosity and/or density evolution. Recently Marzke et al. (1994a) using the CfA redshift survey sample find that the number of galaxies in the range $-16<2.5$ for dwarf galaxies, we reproduce well also the observed $K$--band deep galaxy counts. This assumption is supported by the strong correlation we found between $B-K$ color of galaxies and their infrared absolute magnitude: galaxies become bluer with decreasing luminosity.
description: 6 pages, TeX, 9 PostScript figures, to appear in MNRAS
Decay-dephasing-induced steady states in bosonic Rydberg-excited quantum gases in an optical lattice
Creators: name: Barbier, Mathieu
name: Geißler, Andreas
name: Hofstetter, Walter
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the possibility of realizing supersolid quantum phases in bosonic Rydberg-excited quantum lattice gases in the presence of non-unitary processes, by simulating the dynamical evolution starting from initial preparation in non-dissipative equilibrium states. Within Gutzwiller theory, we first analyze the many-body ground-state of a bosonic Rydberg-excited quantum gas in a two dimensional optical lattice for variable atomic hopping rates and Rabi detunings. Furthermore, we perform time evolution of different supersolid phases using the Lindblad-master equation. With the inclusion of two different non-unitary processes, namely spontaneous decay from a Rydberg state to the ground state and dephasing of the addressed Rydberg state, we study the effect of non-unitary processes on those quantum phases and observe long-lived states in the presence of decay and dephasing. We find that long-lived supersolid quantum phases are observable within a range of realistic decay and dephasing rates, while high rates cause any initial configuration to homogenize quickly, preventing possible supersolid formation.
Search for supersymmetry in sqrt(s) = 13 TeV p-p collisions using the alphaT variable with the CMS detector
Creators: name: Citron, Matthew
Publisher: name: Imperial College London
Year: 2017

description: The search for BSM physics is one of the primary objectives of the LHC. This thesis describes the alphaT search for supersymmetry using a dataset of 12.9/fb collected during the 2016 proton-proton runs by the CMS detector. The search uses a final state containing significant hadronic activity in the form of jets, missing energy, and no leptons or photons. Dedicated dimensionless variables ensure that backgrounds with fake missing energy are mitigated. A detailed description is given of the selections used to mitigate backgrounds while maintaining acceptance to a wide range of signal models and of the techniques used to ensure a robust determination of the residual backgrounds and systematic uncertainties. No evidence for BSM physics is observed and simplified models are therefore used to interpret the results of the search. Stringent new limits are placed on a range of supersymmetric topologies and a procedure to allow the search to be re-interpreted for any BSM physics model is presented. Additionally, the upgrade of the Level-1 trigger jet and energy sum algorithm is studied. The upgraded trigger hardware is exploited to ensure effective performance in conditions exceeding the design specification of the LHC.
MPEC 2024-E125 : 2019 QW3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Detection of the Far-infrared [O III] and Dust Emission in a Galaxy at Redshift 8.312: Early Metal Enrichment in the Heart of the Reionization Era
Creators: name: Tamura, Yoichi
name: Mawatari, Ken
name: Hashimoto, Takuya
name: Inoue, Akio K.
name: Zackrisson, Erik
name: Christensen, Lise
name: Binggeli, Christian
name: Matsuda, Yuichi
name: Matsuo, Hiroshi
name: Takeuchi, Tsutomu T.
name: Asano, Ryosuke S.
name: Sunaga, Kaho
name: Shimizu, Ikkoh
name: Okamoto, Takashi
name: Yoshida, Naoki
name: Lee, Minju
name: Shibuya, Takatoshi
name: Taniguchi, Yoshiaki
name: Umehata, Hideki
name: Hatsukade, Bunyo
name: Kohno, Kotaro
name: Ota, Kazuaki
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the Atacama Large Millimeter/submillimeter Array (ALMA) detection of the [O III] 88 $μ$m line and rest-frame 90 $μ$m dust continuum emission in a Y-dropout Lyman break galaxy (LBG), MACS0416_Y1, lying behind the Frontier Field cluster MACS J0416.1-2403. This [O III] detection confirms the LBG with a spectroscopic redshift of $z = 8.3118 \pm 0.0003$, making this object one of the furthest galaxies ever identified spectroscopically. The observed 850 $μ$m flux density of $137 \pm 26$ $μ$Jy corresponds to a de-lensed total infrared (IR) luminosity of $L_{\rm IR} = (1.7 \pm 0.3) \times 10^{11} L_{\odot}$ if assuming a dust temperature of $T_{\rm dust} = 50$ K and an emissivity index of $β= 1.5$, yielding a large dust mass of $4 \times 10^6 M_{\odot}$. The ultraviolet-to-far IR spectral energy distribution modeling where the [O III] emissivity model is incorporated suggests the presence of a young ($τ_{\rm age} \approx 4$ Myr), star-forming (SFR $\approx 60 M_{\odot}$ yr$^{-1}$), moderately metal-polluted ($Z \approx 0.2 Z_{\odot}$) stellar component with a mass of $M_{\rm star} = 3 \times 10^8 M_{\odot}$. An analytic dust mass evolution model with a single episode of star-formation does not reproduce the metallicity and dust mass in $τ_{\rm age} \approx 4$ Myr, suggesting a pre-existing evolved stellar component with $M_{\rm star} \sim 3 \times 10^9 M_{\odot}$ and $τ_{\rm age} \sim 0.3$ Gyr as the origin of the dust mass.
description: Accepted by ApJ. 18 pages, 10 figures, 5 tables
Near- and mid-infrared intersubband absorption in top-down GaN/AlN nano- and micropillars
Creators: name: Lähnemann, Jonas
name: Browne, David A.
name: Ajay, Akhil
name: Jeannin, Mathieu
name: Vasanelli, Angela
name: Thomassin, Jean-Luc
name: Bellet-Amalric, Edith
name: Monroy, Eva
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a systematic study of top-down processed GaN/AlN heterostructures for intersubband optoelectronic applications. Samples containing quantum well superlattices that display either near- or mid-infrared intersubband absorption were etched into nano- and micropillar arrays in an inductively coupled plasma. We investigate the influence of this process on the structure and strain-state, on the interband emission and on the intersubband absorption. Notably, for pillar spacings significantly smaller ($\leq1/3$) than the intersubband wavelength, the magnitude of the intersubband absorption is not reduced even when 90\% of the material is etched away and a similar linewidth is obtained. The same holds for the interband emission. In contrast, for pillar spacings on the order of the intersubband absorption wavelength, the intersubband absorption is masked by refraction effects and photonic crystal modes. The presented results are a first step towards micro- and nanostructured group-III nitride devices relying on intersubband transitions.
AGN Feedback in Galaxy Group 3C 88: Cavities, Shock and Jet Reorientation
Creators: name: Liu, Wenhao
name: Sun, Ming
name: Nulsen, Paul
name: Clarke, Tracy
name: Sarazin, Craig
name: Forman, William
name: Gaspari, Massimo
name: Giacintucci, Simona
name: Lal, Dharam Vir
name: Edge, Tim
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results from the deep Chandra observation (105 ksec), together with new Giant Metrewave Radio Telescope and Very Large Array data of the AGN outburst in the radio-loud galaxy group 3C 88. The system shows a prominent X-ray cavity on the eastern side with a diameter of $\sim$50 kpc at $\sim28$ kpc from the nucleus. The total enthalpy of the cavity is $3.8\times10^{58}$ erg and the average power required to inflate the X-ray bubble is $\sim2.0\times10^{43}$ erg s^-1. From surface brightness profiles we detect a shock with a Mach number of $M=1.4\pm0.2$, consistent with the value obtained from temperature jump. The shock energy is estimated to be $1.9\times10^{59}$ erg. The size and total enthalpy of the cavity in 3C 88 are the largest known in galaxy groups, as well as the shock energy. The eastern X-ray cavity is not aligned with the radio jet axis. This factor, combined with the radio morphology, strongly suggests jet reorientation in the last tens of million years. The bright rim and arm features surrounding the cavity show metallicity enhancement, suggesting they originated as high metallicity gas from the group center, lifted by the rising X-ray bubbles. Our Chandra study of 3C 88 also reveals that galaxy groups with powerful radio AGN can have high cavity power, although deep X-ray observations are typically required to confirm the cavities in galaxy groups.
description: 18 pages, 15 figures, MNRAS accepted
Refoulement-of-Eritrean-Refugees-in-Ethiopia (12).pdfRefoulement of Eritrean Refugees in Ethiopia: Examining the Geopolitical Shift in the Horn of Africa
Creators: name: Taddesse, Solomon
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 480704
subject: Migration, asylum and refugee law

description: SomaliaThe political dynamics in the Horn of Africa experienced significant transformations after the Pretoria Peace Agreement was established between the Tigray People’s Liberation Front (TPLF) and the Ethiopian government. Although the agreement aimed to bring an end to the devastating armed conflict in Ethiopia (2020-2022), it has been accompanied by a decline in Ethiopia's relations with Eritrea. Once an ally of the Ethiopian government during this armed conflict, Eritrea has now forged closer ties with Egypt and Somalia. This new political alignment is motivated by mutual grievances against Ethiopia, particularly Egypt's opposition to the Grand Ethiopian Renaissance Dam (GERD), which it perceives as a threat to its water security, and Somalia's claims of sovereignty violations stemming from Ethiopia's the 2024 MoU with Somaliland, a self-proclaimed independent entity that Somalia regards as part of its territory. In the present context of increasing tensions, Eritrean refugees and asylum seekers living in Ethiopia are experiencing more significant vulnerabilities. Various reports highlight occurrences of refoulement and arbitrary detentions despite claims from the Ethiopian government that these Eritreans are involved in criminal activities and unregistered. This article examines the refoulement of Eritrean refugees in light of changing Horn Africa regional alliances. By analysing this dimension, the study found out that Ethiopia bears a legal obligation to protect Eritrean refugees and asylum seekers from persecution upon return to their home country, irrespective of the new Eritrea-Egypt-Somalia Alliance.
The ionizing stars of extragalactic H II regions
Creators: name: Bresolin, F.
name: Kennicutt, R. C.
name: Garnett, D. R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Medium-resolution spectra from 3650 angstroms to 10,000 angstroms are presented for 96 giant H II regions distributed in 20 spiral galaxies. We have calculated two separate grids of photoionization models, adopting single-star atmospheres (Kurucz) and star clusters synthesized with different Initial Mass Functions (IMFs) as ionizing sources. Additional models were computed with more recent non-LTE stellar atmospheres. We use the radiation softness parameter eta' of Vilchez and Pagel to test for a metallicity dependence of the effective temperatures of the ionizing stars. Our results are consistent with a significant decrease in mean stellar temperatures of the ionizing stars with increasing metallicity. The magnitude of the effect, combined with the behavior of the HeI 5876/Hbeta ratio, suggest a smaller upper mass limit for star formation at abundances higher than solar, even when considering the effects of metallicity on stellar evolution and atmospheric line blanketing. However, the exact magnitudes of the stellar temperature and IMF variations are dependent on the choice of stellar atmosphere and evolution models used, as well as on uncertainties in the nebular abundance scale at high metallicities. Our results also constrain the systematic behavior of the ionization parameter and the N/O ratio in extragalactic H II regions. The observed spectral sequences are inconsistent with current stellar evolution models which predict a luminous, hot W-R stellar population in evolved H II regions older than 2-3 Myr. This suggests either that the hardness of the emitted Lyman continuum spectrum has been overestimated in the models, or that some mechanism disrupts the H II regions before the W-R phases become important.
description: 29 pages + 14 figures. To be published in the January 1, 1999 issue of The Astrophysical Journal
Microvascular and endothelial dysfunction in the pathophysiology of disease progression in dengue: an observational study in Vietnam
Creators: name: Yacoub, Sophie
Publisher: name: Imperial College London
Year: 2016

description: Dengue infection can present with a broad spectrum of clinical phenotypes. The hallmark of severe disease is increased vascular permeability, sometimes leading to hypovolaemic shock. Microvascular/ endothelial dysfunction may underlie this, but have not been assessed clinically. I performed a prospective observational study in two hospitals in Vietnam recruiting 300 children (> 3 years) and adults presenting to a) outpatient department with fever for <72 hours and suspected dengue, b) patients hospitalized with warning signs or severe disease. Clinical and laboratory assessments were performed daily for 5 days, and 2 weeks later. Microvascular imaging using Sidestream dark field Imaging (SDF), and endothelial function testing using peripheral artery tonometry (EndoPAT) were performed at enrolment, defervescence/hospital discharge and follow-up. Plasma endothelial biomarkers were performed at the same time-points. Echocardiogram derived parameter of intravascular volume and cardiac function were also assessed at the same time-points and daily in patients admitted to ICU. We demonstrated firstly, that moderate microcirculatory alterations occur in dengue and are most prominent in the critical phase and worst in patients with plasma leakage. In the outpatient arm, these microcirculatory alterations were similar in other febrile illnesses. The flow alterations correlated with VCAM-1 and Angiopoietin-2 in dengue patients. Significantly elevated levels of syndecan-1 were shown in dengue patients during the critical phase, associated with the degree of plasma leakage, suggesting there is widespread endothelial glycocalyx degradation. In addition, we have shown patients with dengue have endothelial dysfunction with impaired endothelium-dependent vasodilation, worst in patients with severe plasma leakage, which is apparent early in the febrile phase. Endothelial dysfunction correlated with high levels of arginase-1 and low L-arginine levels. In severe dengue, myocardial impairment was associated with respiratory distress but not recurrent shock. High lactate levels at admission to intensive care and lower stroke volumes were associated with recurrent shock. Overall, this work has shown microvascular and endothelial dysfunction are associated with disease progression and severe outcomes in dengue, and may provide useful future biomarkers and therapeutic targets.
Study of G-quadruplex formation in the promoter region of zinc transporter hZIP1
Creators: name: Franco Bodek, Daniela
Publisher: name: Imperial College London
Year: 2016

description: The formation of G-quadruplexes, non-canonical DNA structures, in the promoter region of genes has attracted a lot of attention in recent years as regulators of gene expression; these structures have become attractive targets for therapeutic design of molecules. In this thesis, the effect of a putative G-quadruplex sequence was investigated in the promoter region of hZIP1, an important zinc transporter that is down-regulated during the development of prostate cancer. Understanding the mechanisms of regulation of this gene is fundamental to unravel the processes that govern the malignancy progress. It was found that the G-rich sequence (named hZIP1-1) located near the transcription start site of hZIP1 is capable of forming stable parallel intramolecular G-quadruplexes at physiological pH and potassium concentration in vitro. Mutations that disrupt the G-quadruplex potential were designed with emphasis on preventing the disruption of known and predicted transcription binding sites. The well-studied G-quadruplex ligands Pyridostatin, BRACO-19 and PhenDC3 were found to stabilize the G-quadruplex sequence while having little effect on the non-G-quadruplex mutant. In cellulo studies revealed that disrupting the G-quadruplex potential of the hZIP1 promoter decreases transcription. Furthermore, treatment with Pyridostatin increases transcription. These results suggest that the G-quadruplex may function as an activator of gene expression that can be targeted using G-quadruplex selective small molecules, providing a new therapeutic route to be explored in the treatment of prostate cancer.
MPEC 2024-E126 : 2021 GX5
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Constraining the dark matter-vacuum energy interaction using the EDGES 21-cm absorption signal
Creators: name: Wang, Yuting
name: Zhao, Gong-Bo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The recent measurement of the global 21-cm absorption signal reported by the Experiment to Detect the Global Epoch of Reionization Signature (EDGES) Collaboration is in tension with the prediction of the $Λ$CDM model at a $3.8\,σ$ significance level. In this work, we report that this tension can be released by introducing an interaction between dark matter and vacuum energy. We perform a model parameter estimation using a combined dataset including EDGES and other recent cosmological observations, and find that the EDGES measurement can marginally improve the constraint on parameters that quantify the interacting vacuum, and that the combined dataset favours the $Λ$CDM at 68\% CL. This proof-of-the-concept study demonstrates the potential power of future 21-cm experiments to constrain the interacting dark energy models.
description: 6 pages, 5 figures, 1 table; accepted for publication in ApJ
Effects of offshore wind farm construction on fish community indexes using eggs and larvae - a case study in Miaoli, Taiwan
Creators: name: Lin, Han-Yang
name: Chen, Ya-Fang
name: Shih, Yu-Ming
name: Chiu, Yung-Chieh
name: Shao, Kwang-Tsao
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 310305
subject: Marine and estuarine ecology (incl. marine ichthyology)

description: This dataset describes the abundance of 211 marine ichthyoplankton species from 2015/08 to 2024/10, which were sampled from an offshore wind farm in Miaoli, Taiwan. In addition, it includes the adult habitat types, adult maximum body size, and adult trophic levels for these ichthyoplankton species.
Psittacus sordidus Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Psittaciformes
Psittacidae
Psittacus
Psittacus sordidus

description: Psittacus sordidus [spec. nov.]
P. brachyurus subfuscus, gula caerulea, alis caudaque viridibus, rostro anoque rubris.
Psittacus fuscus. Edw. av. 167. t. 167.
Habitat in Mexico.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 99, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Effects of offshore wind farm construction on fish community indexes using eggs and larvae - a case study in Miaoli, Taiwan
Creators: name: Lin, Han-Yang
name: Chen, Ya-Fang
name: Shih, Yu-Ming
name: Chiu, Yung-Chieh
name: Shao, Kwang-Tsao
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 310305
subject: Marine and estuarine ecology (incl. marine ichthyology)

description: This dataset describes the sampling seasons, years, and construction periods in an offshore wind farm in Miaoli, Taiwan for 211 marine ichthyoplankton species. In addition, it includes the adult maximum body size and trophic levels of these ichthyoplankton species.
Fast, Anytime Motion Planning for Prehensile Manipulation in Clutter
Creators: name: Kimmel, Andrew
name: Shome, Rahul
name: Littlefield, Zakary
name: Bekris, Kostas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Many methods have been developed for planning the motion of robotic arms for picking and placing, ranging from local optimization to global search techniques, which are effective for sparsely placed objects. Dense clutter, however, still adversely affects the success rate, computation times, and quality of solutions in many real-world setups. The current work integrates tools from existing methodologies and proposes a framework that achieves high success ratio in clutter with anytime performance. The idea is to first explore the lower dimensional end effector's task space efficiently by ignoring the arm, and build a discrete approximation of a navigation function, which guides the end effector towards the set of available grasps or object placements. This is performed online, without prior knowledge of the scene. Then, an informed sampling-based planner for the entire arm uses Jacobian-based steering to reach promising end effector poses given the task space guidance. While informed, the method is also comprehensive and allows the exploration of alternative paths over time if the task space guidance does not lead to a solution. This paper evaluates the proposed method against alternatives in picking or placing tasks among varying amounts of clutter for a variety of robotic manipulators with different end-effectors. The results suggest that the method reliably provides higher quality solution paths quicker, with a higher success rate relative to alternatives.
MPEC 2024-E127 : 2022 EJ1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Applying Random Forests in Federated Learning: A Synthesis of Aggregation Techniques
Creators: name: Bodynek, Mattis
name: Leiser, Florian
name: Thiebes, Scott
name: Sunyaev, Ali
Publisher: name: AIS eLibrary (AISeL)
Year: 2023
Subjects: Random Forest
Federated Learning
Literature Review​

description: Random forests (RFs) are a versatile choice for many machine learning applications. Despite their promising efficiency and simplicity, RFs are seldom used in collaborative scenarios like federated learning (FL). In FL, training data is scattered among a federation of clients. To train federated models, a central server aggregates inputs from all clients. For RFs as non-parametric models, coordinating the training phase and aggregating the global model is non-trivial. Design choices regarding the evaluation of candidate splits and the aggregation of decision trees prove to be context-specific. In this work, we identify aggregation techniques proposed in extant literature. The identified techniques are categorized across dimensions like training coordination, inference process, and privacy. We find an important distinction between synchronous and asynchronous techniques and evaluate the practical suitability of aggregation techniques by comparing advantages and drawbacks for prediction robustness and technical feasibility. Our results facilitate design choices of future federated RFs.​
The concept of “well-being” in (and outside) the workplace
Creators: name: Shirin Boday, Natalie
name: Campesan, Dario
name: Pavin, Arianna
name: Valenti, Carlo
Publisher: name: Diritto della sicurezza sul lavoro
Year: 2024

description: La nozione di “benessere” in relazione alla sfera lavorativa rappresenta un concetto multiforme e variegato, nonché profondamente intrecciato con le misure connesse alla salute e alla sicurezza. A tal proposito, è fondamentale individuare i diversi aspetti che presentano un impatto sul benessere dei lavoratori, dato che possono essere riscontrati non solo in relazione al contratto di lavoro e alle attività lavorative, ma anche per quanto riguarda la dimensione interna ed esterna al luogo di lavoro. Tra questi, infatti, è possibile osservare sia l’adozione di soluzioni di welfare per aumentare la soddisfazione dei lavoratori nella loro collettività, sia l’utilizzo di contratti di lavoro flessibili e temporanei per garantire un orario di lavoro più gestibile per il singolo individuo. Tuttavia, l’analisi deve coinvolgere anche gli altri fattori esterni che contribuiscono a modellare il benessere sul posto di lavoro, come l’ambiente che circonda l’azienda stessa. Per questi motivi, è necessario adottare un approccio olistico alla nozione di “benessere”, facendo in modo che le misure adottate dal datore di lavoro siano improntate sia sulla salvaguardia dei protocolli di salute e sicurezza, sia sul miglioramento delle condizioni generali dei lavoratori.
description: Diritto della sicurezza sul lavoro, N. 1 (2024)
The out-equilibrium 2D Ising spin glass: almost, but not quite, a free-field theory
Creators: name: Fernandez, L. A.
name: Marinari, E.
name: Martin-Mayor, V.
name: Parisi, G.
name: Ruiz-Lorenzo, J. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the spatial correlation function of the two-dimensional Ising spin glass under out-equilibrium conditions. We pay special attention to the scaling limit reached upon approaching zero temperature. The field-theory of a non-interacting field makes a surprisingly good job at describing the spatial shape of the correlation function of the out-equilibrium Edwards-Anderson Ising model in two dimensions.
description: 20 pages + 5 Figures
title: ADCO, Boursier de Cîteaux : comptes (1489-1493) (11 H 1166), f. 00486
Creators: name: de la Côte-d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Boursier de Cîteaux : comptes (1489-1493), Archives départementales de la Côte-d'Or, (11 H 1166). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Boursier de Cîteaux : comptes (1489-1493), Archives départementales de la Côte-d'Or, (11 H 1166), f. 00486, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Robust optomechanical state transfer under composite phase driving
Creators: name: Ventura-Velázquez, C.
name: Ávila, B. Jaramillo
name: Kyoseva, E.
name: Rodríguez-Lara, B. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a technique for robust optomechanical state transfer using phase-tailored composite pulse driving with constant amplitude. Our proposal is inspired by coherent control techniques in lossless driven qubits. We demonstrate that there exist optimal phases for maximally robust excitation exchange in lossy strongly-driven optomechanical state transfer. In addition, our proposed composite phase driving also protects against random variations in the parameters of the system. However, this driving can take the system out of its steady state. For this reason, we use the ideal optimal phases to produce smooth sequences that both maintain the system close to its steady state and optimize the robustness of optomechanical state transfer.
description: 16 pages, 7 figures, 52 references
Reasonable accommodation beyond disability: an inclusive equality approach through the organisation of the enterprise
Creators: name: Kara, Serenay
name: Pachała-Szymczyk, Ernestyna
name: Rosa, Massimiliano
name: Tonelli, Riccardo
Publisher: name: Diritto della sicurezza sul lavoro
Year: 2024

description: In questo contributo gli Autori intendono verificare se sia possibile prefigurare un’estensione dell’obbligo di accomodamenti ragionevoli, gravante sul datore di lavoro (privato), oltre il fattore della disabilità. L’analisi, condotta attraverso una comparazione verticale tra gli ordinamenti italiano, polacco e turco, è sviluppata ponendo in luce alcune misure di “adeguamento” che vengono già riconosciute in favore delle lavoratrici e dei lavoratori per la tutela di altri due fattori di possibile discriminazione, la religione e le responsabilità di cura familiari. La conclusione è che, attualmente, non pare potersi configurare un tale obbligo in via generale e astratta. D’altra parte, si coglierà l’occasione per prospettare una possibile soluzione pratica alle difficoltà di bilanciamento tra i molteplici interessi coinvolti che si pongono a fronte della concreta attuazione di tali forme di “accomodamento”. In particolare, l’idea proposta è quella di procedimentalizzare le richieste di accomodamento ragionevole (anche oltre il fattore della disabilità) valorizzando l’esperienza dei modelli organizzativi di gestione dei processi aziendali, già sperimentata in altri contesti.
description: Diritto della sicurezza sul lavoro, N. 1 (2024)
Carnet nº 2, commencé à Vienne (p. 43)
Creators: name: Péraire, Lucien
name: CNRS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023

description: created: 21-9-1928
Implementation vulnerabilities in general quantum cryptography
Creators: name: Huang, Anqi
name: Barz, Stefanie
name: Andersson, Erika
name: Makarov, Vadim
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum cryptography is information-theoretically secure owing to its solid basis in quantum mechanics. However, generally, initial implementations with practical imperfections might open loopholes, allowing an eavesdropper to compromise the security of a quantum cryptographic system. This has been shown to happen for quantum key distribution (QKD). Here we apply experience from implementation security of QKD to several other quantum cryptographic primitives. We survey quantum digital signatures, quantum secret sharing, source-independent quantum random number generation, quantum secure direct communication, and blind quantum computing. We propose how the eavesdropper could in principle exploit the loopholes to violate assumptions in these protocols, breaking their security properties. Applicable countermeasures are also discussed. It is important to consider potential implementation security issues early in protocol design, to shorten the path to future applications.
description: 13 pages, 8 figures
Relativistic independence bounds nonlocality
Creators: name: Carmi, Avishy
name: Cohen, Eliahu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81P45

description: If Nature allowed nonlocal correlations other than those predicted by quantum mechanics, would that contradict some physical principle? Various approaches have been put forward in the past two decades in an attempt to single out quantum nonlocality. However, none of them can explain the set of quantum correlations arising in the simplest scenarios. Here it is shown that generalized uncertainty relations, as well as a specific notion of locality give rise to both familiar and new characterizations of quantum correlations. In particular, we identify a condition, relativistic independence, which states that uncertainty relations are local in the sense that they cannot be influenced by other experimenters' choices of measuring instruments. We prove that theories with nonlocal correlations stronger than the quantum ones do not satisfy this notion of locality and therefore they either violate the underlying generalized uncertainty relations or allow experimenters to nonlocally tamper with the uncertainty relations of their peers.
description: Accepted to Science Advances
Highly Compressed Data with Reverse Encoding
Creators: name: Smith, Keaton
Publisher: name: Zenodo
Year: 2025

description: We propose a framework for data storage and retrieval that decouples raw data from its eventual representation by leveraging a dictionary-based encoding mechanism. At the core of our method is a persistent mapping library—implemented using a lightweight SQL database—that assigns each non-numeric data element a unique token in a reversible manner. This mapping is entirely independent of the target medium, allowing the same encoded output to be rendered as SQL–Unicode text, a PNG image, or even adapted to future technologies. We demonstrate our approach using a lightweight example that encodes database files, an assembled reader for data retrieval, and an output run from an ingestion script. Our results validate the system’s ability to store and later retrieve data accurately, establishing a robust foundation for future ingestion work.
Numerical investigation of turbulent boundary layers and their interaction with wall-attached bodies
Creators: name: Diaz Daniel, Carlos
Publisher: name: Imperial College London
Year: 2017

description: This PhD thesis presents a computational study of turbulent boundary layers and their interaction with wall-attached bodies, by means of high- idelity Direct Numerical Simulations (DNS) and Large Eddy Simulations (LES). The main objective is determining if the interaction with multiscale generated turbulence can potentially suppress, mask or modify the far-field signature originated by a wall-mounted obstacle. The first part of the thesis is a DNS investigation on the fundamental physics of a zero-pressure gradient turbulent boundary layer at Reynolds numbers up to Re = 2130, based on the momentum thickness and free-stream velocity, which is the baseline flow for later stages of the project. This investigation produced new theoretical results in two main topics: the intermediate region scaling of the Reynolds stresses in wall-bounded flows and the relation between wall-shear stress fluctuations and outer fluctuating velocities in turbulent boundary layers. Afterwards, the interaction between a solid wall- attached cube and a turbulent boundary layer is investigated using DNS, at Re = 3000, and LES, at Re = 7900, with Reynolds numbers based on the cube height. The flow structures and frequency response in the near-wall region are in good agreement with reference data obtained in a channel flow. However, our simulations also predict the existence of a low-frequency peak in the far-field energy spectra, which has not previously been reported by other authors. Finally, the effect of multiscale turbulence on the aforementioned far-field peak is studied with LES in two different configurations: the interaction between two parallel wall-mounted cubes and the interaction between the cube and a regular or multiscale grid. The first option does not offer great potential from an engineering point of view, but the second configuration produces promising results: the grids may reduce the frequency of the peak by around a factor 3. The flexible design of the grids and their inexpensive manufacture could make them excellent candidates for future industrial applications.
Radiation-hydrodynamic simulations of the impact of instabilities and asymmetries on inertial confinement fusion
Creators: name: McGlinchey, Kristopher
Publisher: name: Imperial College London
Year: 2017

description: In recent years, there has been significant progress towards achieving ignition from controlled thermonuclear fusion. Recent experiments at the National Ignition Facility have come close to achieving this, but the performance of experiments were compromised by perturbations affecting the implosion's symmetry. This thesis presents the implementation of a multigroup radiation transport algorithm into an existing hydrodynamics code, Chimera, and its application to Inertial Confinement Fusion (ICF) to investigate these perturbations. An idealised 1-dimensional implosion was simulated to explore how the shock timing and final drive affected the stagnation conditions of a capsule's implosion. The timing of the shocks played a critical role in controlling the adiabat of the implosion, with the initial shock being most important by setting the mass that enters the forming hotspot. Multidimensional simulations then evaluated how perturbations affected an implosion's performance. Hydrodynamic instabilities from harmonic and natural roughness seeds were imaged, and the requirements of a next generation imaging system derived. It was found that a new system will require a 10keV backlighter at a < 10 micron spatial and a < 20 ps temporal resolution. The radiation from the forming hot spot played an important role in fire polishing incoming instabilities, leading to a denser, cooler hot spot which lowered the yield by 50%. Large-scale asymmetries caused by radiation asymmetries prematurely ended the hotspot confinement due to imploding lobes of cold dense material, reducing the yield by 50%. Neutron detectors found a 10% variation in inferred ion temperature due to the residual flows induced. The tent scar had a small influence on the performance of a capsule, being confined largely to the surface. The combination of the tent and radiation asymmetries produced a highly perturbed implosion that performed better than the radiation asymmetry, but worse than the tent.