cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Neural-Rendezvous: Provably Robust Guidance and Control to Encounter Interstellar Objects
Creators: name: Tsukamoto, Hiroyasu
name: Chung, Soon-Jo
name: Nakka, Yashwanth Kumar
name: Donitz, Benjamin
name: Mages, Declan
name: Ingham, Michel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: Interstellar objects (ISOs) are likely representatives of primitive materials invaluable in understanding exoplanetary star systems. Due to their poorly constrained orbits with generally high inclinations and relative velocities, however, exploring ISOs with conventional human-in-the-loop approaches is significantly challenging. This paper presents Neural-Rendezvous -- a deep learning-based guidance and control framework for encountering fast-moving objects, including ISOs, robustly, accurately, and autonomously in real time. It uses pointwise minimum norm tracking control on top of a guidance policy modeled by a spectrally-normalized deep neural network, where its hyperparameters are tuned with a loss function directly penalizing the MPC state trajectory tracking error. We show that Neural-Rendezvous provides a high probability exponential bound on the expected spacecraft delivery error, the proof of which leverages stochastic incremental stability analysis. In particular, it is used to construct a non-negative function with a supermartingale property, explicitly accounting for the ISO state uncertainty and the local nature of nonlinear state estimation guarantees. In numerical simulations, Neural-Rendezvous is demonstrated to satisfy the expected error bound for 100 ISO candidates. This performance is also empirically validated using our spacecraft simulator and in high-conflict and distributed UAV swarm reconfiguration with up to 20 UAVs.
description: Preprint Version, Accepted: October, 2024 (One-minute YouTube summary: https://youtu.be/q3e0LYS2IYQ, DOI: https://doi.org/10.2514/1.G007671)
Catagonus wagneri
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Tayassuidae
Catagonus
Catagonus wagneri

description: Catagonus wagneri (Rusconi, 1930). An. Mus. Nac. Hist. Nat. “Bernardino Rivadavia," 36:231. TYPE LOCALITY: Argentina, Santiago del Estero, Llajta Manca. DISTRIBUTION: Gran Chaco of Paraguay, Argentina, and Bolivia. COMMENT: Originally described from pre-Hispanic and subfossil remains; subsequently discovered alive (Wetzel et al., 1975, Science, 189:379-381; see also Wetzel, 1977, Bull. Carnegie Mus. Nat. Hist., 3: 1 -36); Wetzel, 1981, Carnegie Mag., 55:24-32.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Artiodactyla, pp. 315-343 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 316, DOI: 10.5281/zenodo.7352976
description: {"references": ["Wetzel, R. M., R. E. Dubos, R. L. Martin, and P. Myers. 1975. Catagonus, an \" extinct \" peccary, alive in Paraguay. Science, 189: 379 - 381.", "Wetzel, R. M. 1977. The Chacoan peccary Catagonus wagneri (Rusconi). Bulletin of Carnegie Museum of Natural History, 3: 1 - 36.", "Wetzel, R. M. 1981. The hidden Chacoan peccary. Carnegie Magazine, 55: 24 - 32."]}
Tayassu G. Fischer 1814
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Tayassuidae
Tayassu

description: Tayassu G. Fischer, 1814. Zoognosia, 3:284. REVIEWED BY: P. Grubb (PG); J. Ramirez-Pulido (JRP). COMMENT: Includes Dicotyles; see Wetzel, 1977, Bull. Carnegie Mus. Nat. Hist., 3:7; Van Gelder, 1977, Am. Mus. Novit., 2635:13- 14; Hershkovitz, 1963, Proc. Biol. Soc. Wash., 76:85-87. ISIS NUMBER: 5301419002001000000.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Artiodactyla, pp. 315-343 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 316, DOI: 10.5281/zenodo.7352976
description: {"references": ["Wetzel, R. M. 1977. The Chacoan peccary Catagonus wagneri (Rusconi). Bulletin of Carnegie Museum of Natural History, 3: 1 - 36.", "Hershkovitz, P. 1963. The nomenclature of South American peccaries. Proceedings of the Biological Society of Washington, 76: 85 - 88."]}
A comparison of the water quality and plankton diversity of the Okamini Stream to the freshwater systems within the New Calabar River catchment, Port Harcourt, Nigeria
Creators: name: Otene, BB
name: Thornhill, I
name: Amadi, J
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: The water quality and phytoplankton diversity of the Okamini Stream, Port Harcourt, Nigeria was studied between April and June 2018 at three stations. The data was used to assess the health of the system for supporting local communities. Compared to national and international standards, the stream was found to be acidic, but pH levels (5.87 ± 0.40) were similar to other systems in the New Calabar River catchment. Analysis of variance showed that there was no significant variation (p < 0.05) in water quality between the stations, with the exception of PO4 (0.82 ± 0.40 mg l-1), which was significantly higher than other local systems. A total of 26 species of plankton were recorded during the study. These species belonged to the Bacillariophyceae (n = 10), Chlorophyceae (n = 6), Cyanophyceae (n = 5), Euglenoidea (n = 3), and Chrysophyceae (n = 2), but phytoplankton density was low. The most frequently occurring phytoplankton species were indicators of organic pollution, such as Cyclotella comta, while Melosira varians was recorded at all sampling occasions. Relatively high diversity indices indicated a stable environment. We conclude that the Okamini Stream is not yet degraded, but that the water quality should be monitored, and anthropogenic activities managed to avoid potential future deterioration.
Nebular emission from composite star-forming galaxies -- I. A novel modelling approach
Creators: name: Morisset, Christophe
name: Charlot, Stéphane
name: Sánchez, Sebastián F.
name: Espinosa-Ponce, Carlos
name: Barat, Eric
name: Dautreme, Thomas
Publisher: name: arXiv
Year: 2025
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We introduce a novel approach to modelling the nebular emission from star-forming galaxies by combining the contributions from many HII regions incorporating loose trends in physical properties, random dust attenuation, a predefined Halpha luminosity function and a diffuse ionized-gas component. Using a machine-learning-based regression artificial neural network trained on a grid of models generated by the photoionization code Cloudy, we efficiently predict emission-line properties of individual HII regions over a wide range of physical conditions. We generate 250,000 synthetic star-forming galaxies composed of up to 3000 HII regions and explore how variations in parameters affect their integrated emission-line properties. Our results highlight systematic biases in oxygen-abundance estimates derived using traditional methods, emphasizing the importance of accounting for the composite nature of star-forming galaxies when interpreting integrated nebular emission. Future work will leverage this approach to explore in detail its impact on parameter estimates of star-forming galaxies.
description: Accepted for publication in MNRAS
Radio-detection of extensive air showers at the Pierre Auger Observatory - Results and enhancements
Creators: name: Louedec, K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Pierre Auger Collaboration is exploring the potential of radio-detection techniques to measure the extensive air showers. The main advantage of these setups is the possibility to cover a large area with no atmospheric attenuation and having 100% duty cycle. Radio emission in the MHz range is recorded by the Auger Engineering Radio Array (AERA), presently consisting of 124 stations distributed over an area of approximately 6 km$^2$. This enhancement is focused on physics of cosmic rays with an energy greater than 10$^{17}$ eV. In addition, novel detection techniques based on the GHz emission from extensive air showers are being tested at the Pierre Auger Observatory. Three different setups are currently installed and are collecting data: MIDAS (Microwave Detection of Air Showers) and AMBER (Air-shower Microwave Bremsstrahlung Experimental Radiometer) are prototypes of an imaging parabolic dish detector, while EASIER (Extensive Air Shower Identification using Electron Radiometer) records the radio emission by antenna horns located on more than 60 surface detector units. The status of these different activities and the new results in MHz and GHz bands will be reported.
description: 3 pages -- EPS-HEP'13 European Physical Society Conference on High Energy Physics (July, 18-24, 2013) at Stockholm, Sweden
Using PINNS to resolve wave propagation in elastic beams (in Greek)
Creators: name: Vlahopoulou, Adamantia
Publisher: name: Zenodo
Year: 2023

description: The solution of nonlinear partial differential equations using numerical methods is a difficult procedure of high computational load as well as complexity. That is the reason why, in this work, machine learning and artificial neural networks applied to such problems A new methodology for solving complex problems which concerns the utilization of artificial neural networks that obey any given law of physics, which are described by nonlinear partial differential equations, has been introduced (ΡΙΝΝs - Physics Informed Neural Networks). Based on the nature of the problem and the available data, two classes of problems have been determined: those that aim at finding the solution of the equation that describes the physical problem and those that aim at estimating the parameters of the equation for a given known solution. The robustness of PINNs method is examined by solving the Burgers equation, for which the analytical solution is available. One of the civil engineering problems that is accurately described by nonlinear partial differential equations is the wave motion of beams, known as Euler-Bernoulli equation. In this work, Euler-Bernoulli equation was solved applying PINNs method, while is also compared with the analytical solution obtained through modal analysis. It has been observed that PINNs method can both accurately estimate the solution of this differential equation as well as estimate its parameters given the solution, into the spatial and temporal scale that neural network has been trained. It established that there was a difference between the exact and predicted values of the beam boundary conditions.
A quantitative risk-based planning approach for managing life risk from slope instability: Adaptation of the Christchurch District Plan framework

Publisher: name: GNS Science
Year: 2019

description: Following the Canterbury Earthquake Sequence that occurred over 2010–2011, comprehensive geotechnical investigations were undertaken in the Port Hills area of Christchurch. This research allowed the risk to life posed by the most prevalent types of land movement caused by the earthquakes, being rockfall, cliff collapse and other types of mass movement, to be quantified. In a New Zealand first, this quantitative risk assessment methodology has been integrated into the planning framework of the operative Christchurch District Plan, to inform the risk-based approach taken. The methodology utilises an Annual Individual Fatality Risk metric, which is the probability of an individual occupying a specific site being killed as a result of slope instability in any one-year period. Previous ‘It’s Our Fault’ research by Saunders and Massey (2016) has detailed the process of incorporating landslide risk into the Christchurch District Plan, and while briefly explored here, this report is more focused on considering if the risk assessment methodology developed for the Christchurch context could be adapted to other regions, using Wellington as an example. It was found that the use of a life loss metric, such as Annual Individual Fatality Risk, is a potentially valuable tool for land use planners when managing the risk to life posed by not only land instability, but other hazards also. It can successfully be adapted to different areas but may not be appropriate where there is high uncertainty in the model parameters that inform the risk assessment. Where there is high uncertainty, investigations into slope response to seismic events, such as that undertaken after the Christchurch and Kaikoura earthquakes, can provide valuable data to inform the models for regions that have similar geology and slope morphology. (auth)
Stellar obliquities of eight close-in gas giant exoplanets
Creators: name: Zak, J.
name: Boffin, H. M. J.
name: Sedaghati, E.
name: Bocchieri, A.
name: Balkoova, Z.
name: Skarka, M.
name: Kabath, P.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Rossiter-McLaughlin effect allows us to measure the projected stellar obliquity of exoplanets. From the spin-orbit alignment, planet formation and migration theories can be tested to improve our understanding of the currently observed exoplanetary population. Despite having the spin-orbit measurements for more than 200 planets, the stellar obliquity distribution is still not fully understood, warranting additional measurements to sample the full parameter space. We analyze archival HARPS and HARPS-N spectroscopic transit time series of eight gas giant exoplanets on short orbits and derive their projected stellar obliquity $λ$. We report a prograde, but misaligned orbit for HAT-P-50b ($λ=41^\circ\ ^{+10}_{-9}$), possibly hinting at previous high-eccentricity migration given the presence of a close stellar companion. We measured sky-projected obliquities that are consistent with aligned orbits for the rest of the planets: WASP-48b ($λ=-4^\circ\ \pm$ 4), WASP-59b ($λ=-1^\circ\ ^{+20}_{-21}$), WASP-140 Ab ($λ=-1^\circ\ \pm$ 3), WASP-173 Ab ($λ=9^\circ\ \pm$ 5), TOI-2046b ($λ=1^\circ\ \pm$ 6), HAT-P-41 Ab ($λ=-4^\circ\ ^{+5}_{-6}$), and Qatar-4b ($λ=-13^\circ\ ^{+15}_{-19}$). We measure the true stellar obliquity $ψ$ for four systems. We infer a prograde, but misaligned, orbit for TOI-2046b with $ψ=$42$^{+10}_{-8}$\,deg. Additionally, $ψ= 30^\circ\ ^{+18}_{-15}$ for WASP-140 Ab, $ψ= 21^\circ\ ^{+9}_{-10}$ for WASP-173 Ab, and $ψ= 32^\circ\ ^{+14}_{-13}$ for Qatar-4b. The aligned orbits are consistent with slow disk migration, ruling out violent events that would excite the orbits over the history of these systems. Finally, we provide a new age estimate for TOI-2046 of at least 700 Myr and for Qatar-4 of at least 350-500 Myr, contradicting previous results.
description: Accepted to A&A
ZF-UDS-7329: A relic galaxy in the early Universe
Creators: name: Hartmann, Eduardo A.
name: Martín-Navarro, Ignacio
name: Huertas-Company, Marc
name: Benedetti, João P. V.
name: Iglesias-Navarro, Patricia
name: Vazdekis, Alexandre
name: Montes, Mireia
Publisher: name: arXiv
Year: 2025
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The formation time scales of quiescent galaxies can be estimated in two different ways: by their star formation history and by their chemistry. Previously, the methods yielded conflicting results, especially when considering $α$-enhanced objects. This is primarily due to the time resolution limitations of very old stellar populations, which prevent accurately constraining their star formation histories. We analysed the JWST observations of the extremely massive galaxy ZF-UDS-7329 at z$\sim$3.2 and show that the higher time resolution necessary to match the chemical formation time scales using stellar population synthesis can be achieved by studying galaxies at high redshift. We compare the massive galaxy to the well-known relic galaxy NGC~1277, arguing that ZF-UDS-7329 is an early Universe example of the cores of present-day massive elliptical galaxies or, if left untouched, a relic galaxy.
description: Accepted for publication in A&A, 5 pages, 4 figures
Paraxylion bifer
Creators: name: Zhang, Yi-Feng
name: Wang, Ying
name: Lin, Wei
name: Meng, Ling-Zeng
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Bostrichidae
Paraxylion
Paraxylion bifer

description: Paraxylion bifer (Lesne, 1932)
Xylion bifer Lesne, 1932
Materials
Type status: Other material. Occurrence: individualCount: 1; sex: male; lifeStage: adult; occurrenceID: A2AB54FB-B889-5399-A8AC-081E355E9AB6; Location: country: China; stateProvince: Hainan; county: Wuzhishan; municipality: Tongshi; verbatimLocality: 通什; locationRemarks: label: HN, Tongshi, 08. 06. 1983, leg. M. H. Ke; Identification: identifiedBy: Yi-Feng Zhang; dateIdentified: 01-02 - 2023; Record Level: institutionCode: GIZ; basisOfRecord: PreservedSpecimen
Type status: Other material. Occurrence: individualCount: 2; sex: 2 female, 2 male; lifeStage: adult; occurrenceID: 71860D6B-99ED-5B24-ABDD-2A27F1EF78B0; Location: country: China; stateProvince: Hunan; county: Huaihua; municipality: Huitong; locality: Tuanhe Diaotang Village; verbatimLocality: 团河 吊塘村; locationRemarks: label: HN, HT, TH, DT, 13. 07. 2023, Light trap, leg. J. H. Huang; Identification: identifiedBy: Lin Wei; dateIdentified: 31-08 - 2023; Record Level: institutionCode: GCD; basisOfRecord: PreservedSpecimen
Distribution
China (Hong Kong, Yunnan, Guangdong, Hainan, Hunan), India, Indonesia, Myanmar, Laos, Vietnam, Malaysia, Thailand (Liu and Beaver 2018, Zhang et al. 2022, Sittichaya 2023).
Notes
New record of Hunan and Hainan Province.
description: Published as part of Zhang, Yi-Feng, Wang, Ying, Lin, Wei & Meng, Ling-Zeng, 2024, New records of powder-post beetles (Coleoptera, Bostrichidae) from China, pp. e 120044 in Biodiversity Data Journal 12 on page e120044, DOI: 10.3897/BDJ.12.e120044
Possible $H$-like dibaryon states with heavy quarks
Creators: name: Huang, Hongxia
name: Ping, Jialun
name: Wang, Fan
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Possible $H$-like dibaryon states $Λ_{c}Λ_{c}$ and $Λ_{b}Λ_{b}$ are investigated within the framework of quark delocalization color screening model. The results show that the interaction between two $Λ_{c}$'s is repulsive, so it cannot be bound state by itself. However, the strong attraction in $Σ_{c}Σ_{c}$ and $Σ^{*}_{c}Σ^{*}_{c}$ channels and the strong channel coupling, due to the central interaction of one-gluon-exchange and one-pion-exchange, among $Λ_{c}Λ_{c}$, $Σ_{c}Σ_{c}$ and $Σ^{*}_{c}Σ^{*}_{c}$ push the energy of system below the threshold of $Λ_{c}Λ_{c}$ by $22$ MeV. The corresponding system $Λ_{b}Λ_{b}$ has the similar properties as that of $Λ_{c}Λ_{c}$ system, and a bound state is also possible in $Λ_{b}Λ_{b}$ system.
description: 6 pages, 4 figures, 3 tables
On the cardinality of lower sets and universal discretization
Creators: name: Dai, F.
name: Prymak, A.
name: Shadrin, A.
name: Temlyakov, V.
name: Tikhonov, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: Primary: 65J05, Secondary: 05A17, 42B05, 65D30, 41A17, 41A63

description: A set $Q$ in $\mathbb{Z}_+^d$ is a lower set if $(k_1,\dots,k_d)\in Q$ implies $(l_1,\dots,l_d)\in Q$ whenever $0\le l_i\le k_i$ for all $i$. We derive new and refine known results regarding the cardinality of the lower sets of size $n$ in $\mathbb{Z}_+^d$. Next we apply these results for universal discretization of the $L_2$-norm of elements from $n$-dimensional subspaces of trigonometric polynomials generated by lower sets.
Euler continuants in noncommutative quasi-Poisson geometry
Creators: name: Fairon, Maxime
name: Fernández, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: It was established by Boalch that Euler continuants arise as Lie group valued moment maps for a class of wild character varieties described as moduli spaces of points on $\mathbb{P}^1$ by Sibuya. Furthermore, Boalch noticed that these varieties are multiplicative analogues of certain Nakajima quiver varieties originally introduced by Calabi, which are attached to the quiver $Γ_n$ on two vertices and $n$ equioriented arrows. In this article, we go a step further by unveiling that the Sibuya varieties can be understood using noncommutative quasi-Poisson geometry modeled on the quiver $Γ_n$. We prove that the Poisson structure carried by these varieties is induced, via the Kontsevich-Rosenberg principle, by an explicit Hamiltonian double quasi-Poisson algebra defined at the level of the quiver $Γ_n$ such that its noncommutative multiplicative moment map is given in terms of Euler continuants. This result generalises the Hamiltonian double quasi-Poisson algebra associated with the quiver $Γ_1$ by Van den Bergh. Moreover, using the method of fusion, we prove that the Hamiltonian double quasi-Poisson algebra attached to $Γ_n$ admits a factorisation in terms of $n$ copies of the algebra attached to $Γ_1$.
description: 51 pages, 1 figure. v3: Subsection 5.6 added + minor changes. Accepted version
One-dimensional Schroedinger operators with delta-prime-interactions on Cantor-type sets
Creators: name: Eckhardt, Jonathan
name: Kostenko, Aleksey
name: Malamud, Mark
name: Teschl, Gerald
Publisher: name: arXiv
Year: 2014
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary 34L40, 81Q10, Secondary 34L05, 34L20

description: We introduce a novel approach for defining a $δ'$-interaction on a subset of the real line of Lebesgue measure zero which is based on Sturm-Liouville differential expression with measure coefficients. This enables us to establish basic spectral properties (e.g., self-adjointness, lower semiboundedness and spectral asymptotics) of Hamiltonians with $δ'$-interactions concentrated on sets of complicated structures.
description: 30 pages
Multi-Doping of Si Cages: High Spin States beyond the Single-Dopant Septet Limit
Creators: name: Palagin, Dennis
name: Teufl, Tobias
name: Reuter, Karsten
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Density-functional theory based global geometry optimization is employed to systematically scrutinize the possibility of multi-doping of hydrogenated Si clusters in order to achieve high spin states beyond the septet limit of a single-atom dopant. While our unbiased configurational search reveals that the previously suggested Si18H12 double hexagonal prism structure is generally too small to accommodate two dopants in magnetized state, the larger Si24H24 cage turns out to be suitable for such applications. For dimer dopants M2+ = Cr2+, Mn2+ and CrMn+, the structural integrity of the host cage is conserved in the ground-state structure of corresponding M2+@Si24H24 aggregates, as is the unusually high spin state of the guest dopant, which in case of Cr2+ already exceeds the single-atom dopant septet limit by almost a factor of two. Moreover, the possibility of further increasing the cluster spin moment by encapsulating an even larger number of dopants into a suitably sized hydrogenated Si cage is illustrated for the example of a (CrMn+)2@Si28H28 aggregate with a total number of 18 unpaired electrons. These results strongly suggest multi-doping of Si clusters as a viable route to novel cluster-based materials for magneto-optic applications.
Tayassu pecari
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Tayassuidae
Tayassu
Tayassu pecari

description: Tayassu pecari (Link, 1795). Beitr. Naturgesch., 2: 104. TYPE LOCALITY: French Guiana, Cayenne. DISTRIBUTION: Oaxaca and Veracruz (Mexico) to W. Ecuador, Brazil and N. E. Argentina. COMMENT: Includes albirostris; see Husson, 1978, The Mammals of Suriname, p. 353. ISIS NUMBER: 5301419002001001001 as T. albirostris.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Artiodactyla, pp. 315-343 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 316, DOI: 10.5281/zenodo.7352976
description: {"references": ["Husson, A. M. 1978. The mammals of Suriname. E. J. Brill, Leiden, 569 pp., 160 pls."]}
Phonapate fimbriata Lesne 1909
Creators: name: Zhang, Yi-Feng
name: Wang, Ying
name: Lin, Wei
name: Meng, Ling-Zeng
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Bostrichidae
Phonapate
Phonapate fimbriata

description: Phonapate fimbriata Lesne, 1909
Materials
Type status: Other material. Occurrence: individualCount: 1; sex: female; lifeStage: adult; occurrenceID: F3D5913C-1FAD-583E-A040-54EFF9AE9F3D; Location: country: China; stateProvince: Fujian; county: Zhangzhou; municipality: Yunxiao; locality: Zhuta Village; verbatimLocality: 竹塔村; verbatimElevation: 12 m; locationRemarks: label: FJ, ZZ, YX, ZT, 23 ° 55 ' 11.77 " N, 117 ° 24 ' 45.53 " E, 12 m, 27. 08. 2023, Light trap, leg. Y. F. Zhang; Identification: identifiedBy: Yi-Feng Zhang; dateIdentified: 27-08 - 2023; Record Level: institutionID: ZYF; basisOfRecord: PreservedSpecimen
Type status: Other material. Occurrence: individualCount: 1; sex: male; lifeStage: adult; occurrenceID: E78E090C-4C98-5CEC-AC44-D8EA68005A20; Location: country: China; stateProvince: Jiangxi; county: Jinggangshan; locality: Xiangzhou; verbatimLocality: 湘洲; locationRemarks: label: JX, JGS, XZ 26. iv. 2011 leg. Y. Mei, L. - J. Yang, Y. - L. Yu, P. Liu; En- 363179 SYS; Phonapate fimbriata (male) det. Y. F. Zhang, 2021; Identification: identifiedBy: Yi-Feng Zhang; dateIdentified: 24-08 - 2021; Record Level: institutionCode: SYS; basisOfRecord: PreservedSpecimen
Type status: Other material. Occurrence: individualCount: 1; sex: female; lifeStage: adult; occurrenceID: 687AA079-1D84-52B9-A8BA-BF7B61FD34C5; Location: country: China; stateProvince: Guangdong; county: Zhaoqing; municipality: Fengkai; locality: Hei-Shi-Ding; verbatimLocality: 黑石顶; locationRemarks: label: GD, FK, HSD 02 - vi- 2011 (light trap) leg. Y. Li; En- 344048 SYS; Phonapate fimbriata (female) det. Y. F. Zhang, 2021; Identification: identifiedBy: Yi-Feng Zhang; dateIdentified: 24-08 - 2021; Record Level: institutionCode: SYS; basisOfRecord: PreservedSpecimen
Host of
Litchi chinensis (Lu et al. 2012).
Distribution
China (Yunnan, Guangxi, Guangdong, Hong Kong, Jiangxi, Fujian), India, Vietnam, Indonesia, Thailand (Chu and Zhang 1997, Borowski and Węgrzynowicz 2007, Beaver et al. 2011, Lu et al. 2012).
Notes
New record of Guangdong, Jiangxi and Fujian Provinces. Liu (2021) mis-listed Yunnan (Original text: " YN ") as Hunan (Original text: " HN ") from Chen (2011) and neglect Guangxi which had been recorded in Lu et al. (2012)
description: Published as part of Zhang, Yi-Feng, Wang, Ying, Lin, Wei & Meng, Ling-Zeng, 2024, New records of powder-post beetles (Coleoptera, Bostrichidae) from China, pp. e 120044 in Biodiversity Data Journal 12 on page e120044, DOI: 10.3897/BDJ.12.e120044
HIBISCUS: a new ion beam radio-frequency quadrupole cooler-buncher for high-precision experiments with exotic radioactive ions
Creators: name: Jaries, A.
name: Ruotsalainen, J.
name: Kronholm, R.
name: Eronen, T.
name: Kankainen, A.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: HIBISCUS (Helium-Inflated Beam Improvement Setup that Cools and Undermines Spreads), a new radiofrequency quadrupole cooler-buncher device has been developed and commissioned offline at the Ion Guide Isotope Separator On-Line (IGISOL) facility in Jyväskylä in Finland, as an in-kind contribution for the Facility for Antiproton and Ion Research facility. HIBISCUS improves the ion optical properties of incident low-energy 6~keV beams with the option to have it ultimately extracted in temporally short bunches ($<1$~$μ$s). This paper provides technical descriptions of its main characteristics, along with a set of optimum working parameters and performance in terms of transmission efficiency, longitudinal energy spread of the cooled ions and temporal width of the extracted bunches.
description: 15 pages, 18 figures
Bounded perturbations of the Heisenberg commutation relation via dilation theory
Creators: name: Gerhold, Malte
name: Shalit, Orr
Publisher: name: arXiv
Year: 2022
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47A20, 47D03

description: We extend the notion of dilation distance to strongly continuous one-parameter unitary groups. If the dilation distance between two such groups is finite, then these groups can be represented on the same space in such a way that their generators have the same domain and are in fact a bounded perturbation of one another. This result extends to d-tuples of one-parameter unitary groups. We apply our results to the Weyl canonical commutation relations, and as a special case we recover the result of Haagerup and Rordam that the infinite ampliation of the canonical position and momentum operators satisfying the Heisenberg commutation relation are a bounded perturbation of a pair of strongly commuting selfadjoint operators. We also recover Gao's higher-dimensional generalization of Haagerup and Rordam's result, and in typical cases we significantly improve control of the bound when the dimension grows.
description: 9 pages. Minor corrections. To appear in Proceedings of the American Mathematical Society
Lyctus africanus Lesne 1907
Creators: name: Zhang, Yi-Feng
name: Wang, Ying
name: Lin, Wei
name: Meng, Ling-Zeng
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Bostrichidae
Lyctus
Lyctus africanus

description: Lyctus africanus Lesne, 1907
Materials
Type status: Other material. Occurrence: individualCount: 1; occurrenceID: 28744273-A0EA-5EBD-B574-6A7F54B6E697; Location: country: China; stateProvince: Hainan; county: Ledong; locality: Jianfeng Mountain; verbatimLocality: 尖峰; locationRemarks: label: HN, JF, Host of Hevea brasiliensis, 20. 02. 1979, determined by Unknown; Record Level: institutionCode: IOZ; basisOfRecord: PreservedSpecimen
Host of
Hevea brasiliensis (Beaver et al. 2011).
Distribution
China (Zhejiang, Guangdong, Guangxi, Sichuan, Yunnan, Hainan) (Hua 2002). This is a rather pan-tropical species trending towards a cosmopolitan distribution (Liu 2021).
Notes
New record of Hainan Province.
description: Published as part of Zhang, Yi-Feng, Wang, Ying, Lin, Wei & Meng, Ling-Zeng, 2024, New records of powder-post beetles (Coleoptera, Bostrichidae) from China, pp. e 120044 in Biodiversity Data Journal 12 on page e120044, DOI: 10.3897/BDJ.12.e120044
Symmetry origin of Baryon Asymmetry, Dark Matter and Neutrino Mass
Creators: name: Bhattacharya, Subhaditya
name: Roshan, Rishav
name: Sil, Arunansu
name: Vatsyayan, Drona
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a minimal model based on lepton number symmetry (and violation), to address a common origin of baryon asymmetry, dark matter and neutrino mass generation. The model consists of a vector like fermion to constitute the dark sector, three right handed neutrinos (RHN) to dictate leptogenesis and neutrino mass, while an additional complex scalar is assumed to be present in the early universe the decay of which produces both DM and RHN via lepton number violating and lepton number conserving interactions respectively. Interestingly, the presence of the same scalar helps in making the electroweak vacuum stable till the Planck scale. The unnatural largeness and smallness of the parameters required to describe correct experimental limits are attributed to lepton number violation. The allowed parameter space of the model is illustrated via a numerical scan.
description: 9 pages, 5 figures, 3 tables; Version accepted for publication in PRD
Lyctoxylon dentatum
Creators: name: Zhang, Yi-Feng
name: Wang, Ying
name: Lin, Wei
name: Meng, Ling-Zeng
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Bostrichidae
Lyctoxylon
Lyctoxylon dentatum

description: Lyctoxylon dentatum (Pascoe, 1866)
Minthea dentata Pascoe, 1866
Materials
Type status: Other material. Occurrence: individualCount: 1; lifeStage: adult; occurrenceID: 26C74B44-B27C-5005-8E6F-B3A8DA4D7690; Location: country: China; stateProvince: Hainan; county: Ledong; locality: Jianfeng Mountain; verbatimLocality: 尖峰; locationRemarks: label: HN, JF, Host of Albizia procera, 15. 08. 1979, determined by Unknown; Record Level: institutionCode: IOZ; basisOfRecord: PreservedSpecimen
Host of
Albizia procera (new host plant found in Hainan).
Distribution
China (Guangxi, Guizhou, Hubei, Yunnan, Zhejiang, Jiangxi, Taiwan, Hainan), India, Thailand, Malay Peninsula, Vietnam, Indonesia, Japan, Australia (Hua 2002, Liu and Geis 2019, Liu 2021).
Notes
New record of Hainan Province.
description: Published as part of Zhang, Yi-Feng, Wang, Ying, Lin, Wei & Meng, Ling-Zeng, 2024, New records of powder-post beetles (Coleoptera, Bostrichidae) from China, pp. e 120044 in Biodiversity Data Journal 12 on page e120044, DOI: 10.3897/BDJ.12.e120044
Tayassu tajacu
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Tayassuidae
Tayassu
Tayassu tajacu

description: Tayassu tajacu (Linnaeus, 1758). Syst. Nat., 10th ed., 1:50. TYPE LOCALITY: Brazil, Pernambuco. DISTRIBUTION: N. Argentina and N. W. Peru to N.C. Texas, S. W. New Mexico and Arizona (U.S.A.). COMMENT: See Cabrera, 1961:319; see also Thomas, 1911, Proc. Zool. Soc. Lond., 1911: 140, for discussion of type locality. JJM and RMW follow Thomas in designating Mexico as the type locality of this species. PROTECTED STATUS: CITES - Appendix III (Guatemala). ISIS NUMBER: 5301419002001002001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Artiodactyla, pp. 315-343 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on pages 316-317, DOI: 10.5281/zenodo.7352976
Effects of spontaneously generated coherence on resonance fluorescence from lateral triple quantum -dot molecules
Creators: name: Tian, Si-Cong
name: Tong, Cun-Zhu
name: Wang, Chun-Liang
name: Ning, Yong-Qiang
name: Wang, Li-Jun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the spectrum of the resonance fluorescence from the lateral triple quantum dots controlled by voltage and obtain some interesting features such as controllable triple narrow peaks. In our system we use tunneling instead of coupling lasers, and the positions, widths and heights of the resonance fluorescence peaks can be controlled by tuning the tunneling couplings. We explain the observed spectrum with the transition properties of the dressed states generated by the coupling of the two tunneling and the laser field. These features can also be viewed as the effects of Spontaneously Generated Coherence between the close-lying levels in the dressed state picture of the tunneling couplings. And the scheme proposed here can permit the observation of Spontaneously Generated Coherence.
Prompt Tuning with Soft Context Sharing for Vision-Language Models
Creators: name: Ding, Kun
name: Wang, Ying
name: Liu, Pengzhang
name: Yu, Qiang
name: Zhang, Haojian
name: Xiang, Shiming
name: Pan, Chunhong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Vision-language models have recently shown great potential on many tasks in computer vision. Meanwhile, prior work demonstrates prompt tuning designed for vision-language models could acquire superior performance on few-shot image recognition compared to linear probe, a strong baseline. In practice, many few-shot tasks are inherently correlated, particularly within specialized domains. However, such information is overlooked previously. Inspired by the fact that modeling task relationship by multi-task learning can usually boost performance, we propose a novel method SoftCPT (Soft Context Sharing for Prompt Tuning) to tune pre-trained vision-language models on multiple target few-shot tasks jointly. Specifically, we design a task-shared meta network to generate prompt context for each task using task name together with a learnable task context as input. The parameters of this meta network as well as the task context are tuned on the joint training set of all tasks. As such, the prompt context of all tasks will be shared in a soft manner. Extensive experiments across four multi-task few-shot datasets covering 44 tasks and 1593 categories demonstrate that SoftCPT significantly outperforms single-task prompt tuning methods, highlighting the effectiveness of multi-task learning for vision-language prompt tuning. Code is available at https://github.com/kding1225/softcpt.
description: 20 pages
Bound states and deconfined spinons in the dynamical structure factor of the $J_1 - J_2$ spin-1 chain
Creators: name: Sharma, Aman
name: Nayak, Mithilesh
name: Rønnow, Henrik M.
name: Mila, Frédéric
Publisher: name: arXiv
Year: 2025
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a time-dependent density matrix renormalization group approach, we study the dynamical structure factor of the $J_1 - J_2$ spin-1 chain. As $J_2$ increases, the magnon mode develops incommensurability. The system undergoes a first-order transition at $J_2 = 0.76 J_1$, and at that point, domain walls lead to a continuum of fractional quasi-particles or spinons. By studying small variations in $J_2$ around the transition point, we observe the confinement of spinons into bound states in the spectral function and find a smooth evolution of the spectrum into magnon modes away from the phase transition. We employ the single-mode approximation to accurately account for the dispersion of the magnon mode away from the phase transition and describe the associated continua and bound states. We extend the single-mode approximation to describe the dispersion of a spinon at the phase transition point and obtain its dispersion throughout the Brillouin zone. This allows us to relate the incommensurability at and around the transition point to the competition between a negative nearest-neighbour hopping amplitude and a positive next-nearest-neighbour one for the domain wall.
description: 16 pages, 13 Figures
Die Reichswehr ist die gemäß Beschluß der Deutschen Nationalversammlung (Gesetz vom 6. 3. 1919) neugebildete, vorläufige Wehrmacht des Deutschen Reiches. Das Bayerische Kontingent der Reichswehr wird gemäß Ausführungsverordnung vom 10. Mai 1919 aufgestellt ...; [ca. 1919]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2009

description: Werbeplakat mit blauer Rauteneinrahmung für den Eintritt in die Reichswehr, mit Angaben über Eintritt und Dauer der Verpflichtung und Besoldung
Observational Tests of Nonlocal Gravity: Galaxy Rotation Curves and Clusters of Galaxies
Creators: name: Rahvar, S.
name: Mashhoon, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A classical nonlocal generalization of Einstein's theory of gravitation has recently been developed via the introduction of a scalar causal "constitutive" kernel that must ultimately be determined from observational data. It turns out that the nonlocal aspect of gravity in this theory can simulate dark matter; indeed, in the Newtonian regime of nonlocal gravity, we recover the phenomenological Tohline-Kuhn approach to modified gravity. A simple generalization of the Kuhn kernel in the context of nonlocal general relativity leads to a two-parameter modified Newtonian force law that involves an additional repulsive Yukawa-type interaction. We determine the parameters of our nonlocal kernel by comparing the predictions of the theory with observational data regarding the rotation curves of spiral galaxies. The best-fitting stellar mass-to-light ratio turns out to be in agreement with astrophysical models; moreover, our results are consistent with the Tully-Fisher relation for spiral galaxies. Light deflection in nonlocal gravity is consistent with general relativity at Solar System scales, while beyond galactic scales an enhanced deflection angle is predicted that is compatible with lensing by the effective "dark matter". Furthermore, we extend our results to the internal dynamics of rich clusters of galaxies and show that the dynamical mass of the cluster obtained from nonlocal gravity is consistent with the measured baryonic mass.
description: 51 pages, 6 figures, 5 tables; v2: reference added in [25], minor stylistic improvements
Area distribution of two-dimensional random walks and non Hermitian Hofstadter quantum mechanics
Creators: name: Matveenko, Sergey
name: Ouvry, Stephane
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: When random walks on a square lattice are biased horizontally to move solely to the right, the probability distribution of their algebraic area can be exactly obtained. We explicitly map this biased classical random system on a non hermitian Hofstadter-like quantum model where a charged particle on a square lattice coupled to a perpendicular magnetic field hopps only to the right. In the commensurate case when the magnetic flux per unit cell is rational, an exact solution of the quantum model is obtained. Periodicity on the lattice allows to relate traces of the Nth power of the Hamiltonian to probability distribution generating functions of biased walks of length N.
description: 14 pages, 7 figures
Quantum driving and work
Creators: name: Salmilehto, J.
name: Solinas, P.
name: Möttönen, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: As quantum systems become more experimentally accessible, we are forced to reconsider the notions of control and work to fully account for quantum effects. To this end, we identify the work injected into a quantum system during a general quantum-mechanical driving protocol and quantify the relevant heat flows. The known results that are applicable in the limit of a classical drive are shown to emerge from our equations as a special case. Using the established framework, we show that the Bochkov--Kuzovlev identity for the exclusive work distribution is modified in a nontrivial way by the accumulation of system--drive correlations resulting from quantum backaction. Our results accentuate the conceptual and discernible differences between a fully quantum-mechanical and classical driving protocols of quantum systems.
description: 9 pages, 2 figures
Triviality of the higher Formality Theorem
Creators: name: Calaque, Damien
name: Willwacher, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: It is noted that the higher version of M. Kontsevich's Formality Theorem is much easier than the original one. Namely, we prove that the higher Hochschild-Kostant-Rosenberg map is already a homotopy e_{n+1}-formality quasi-isomorphism whenever n is at least 2.
Quantum states for a minimum-length spacetime
Creators: name: Pesci, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Starting from some results regarding the form of the Ricci scalar at a point $P$ in a spacetime endowed with a minimum distance, we investigate how they might be accommodated, specifically for the case of null separations, in a as-simple-as-possible quantum structure for spacetime at $P$, and we try to accomplish this in terms of potentially operationally-defined concepts. In so doing, we provide a possible explicit form for the operator expressing the Ricci scalar as a quantum observable, and give quantum-informational support, thus regardless of or before field equations, to associating with a patch of horizon an entropy proportional to its area.
description: v2: 14 pages, some editing/clarifications, references added
Monte Carlo post-processing for radiation hydro simulations of accreting planets in protoplanetary disks
Creators: name: Krieger, Anton
name: Klahr, Hubert
name: Fuksman, Julio David Melon
name: Wolf, Sebastian
Publisher: name: arXiv
Year: 2025
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: This paper is part of a series investigating the observational appearance of planets accreting from their nascent protoplanetary disk (PPD). We evaluate the differences between gas temperature distributions determined in our radiation hydrodynamical (RHD) simulations and those recalculated via post-processing with a Monte Carlo (MC) radiative transport (RT) scheme. Our MCRT simulations were performed for global PPD models, each composed of a local 3D high-resolution RHD model embedded in an axisymmetric global disk simulation. We report the level of agreement between the two approaches and point out several caveats that prevent a perfect match between the temperature distributions with our respective methods of choice. Overall, the level of agreement is high, with a typical discrepancy between the RHD and MCRT temperatures of the high-resolution region of only about 10 percent. The largest differences were found close to the disk photosphere, at the transition layer between optically dense and thin regions, as well as in the far-out regions of the PPD, occasionally exceeding values of 40 percent. We identify several reasons for these discrepancies, which are mostly related to general features of typical radiative transfer solvers used in hydrodynamical simulations (angle- and frequency-averaging and ignored scattering) and MCRT methods (ignored internal energy advection and compression and expansion work). This provides a clear pathway to reduce systematic temperature inaccuracies in future works. Based on MCRT simulations, we finally determined the expected error in flux estimates, both for the entire PPD and for planets accreting gas from their ambient disk, independently of the amount of gas piling up in the Hill sphere and the used model resolution.
description: Accepted for publication in A&A, 31 pages, 28 figures, 2 tables