cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamical Low-Rank Approximation for Stochastic Differential Equations
Creators: name: Kazashi, Yoshihito
name: Nobile, Fabio
name: Zoccolan, Fabio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 58J65, 60H10, 60H35, 65C30

description: In this paper, we set the mathematical foundations of the Dynamical Low-Rank Approximation (DLRA) method for stochastic differential equations (SDEs). DLRA aims at approximating the solution as a linear combination of a small number of basis vectors with random coefficients (low rank format) with the peculiarity that both the basis vectors and the random coefficients vary in time. While the formulation and properties of DLRA are now well understood for random/parametric equations, the same cannot be said for SDEs and this work aims to fill this gap. We start by rigorously formulating a Dynamically Orthogonal (DO) approximation (an instance of DLRA successfully used in applications) for SDEs, which we then generalize to define a parametrization independent DLRA for SDEs. We show local well-posedness of the DO equations and their equivalence with the DLRA formulation. We also characterize the explosion time of the DO solution by a loss of linear independence of the random coefficients defining the solution expansion and give sufficient conditions for global existence.
description: 41 pages
PROSPECT OF INDIGENOUS PLANT EXTRACTS IN TEA PEST MANAGEMENT
Creators: name: Mamun, M.S.A.
name: Ahmed, M.
name: Mamun, M.S.A.
name: Ahmed, M.
Publisher: name: Unknown
Year: 0
Subjects: subject: Crop Production/Industries
subject: Prospect
subject: biopesticide
subject: plant extracts
subject: tea pest management

description: Tea is a popular beverage made from the leaves of evergreen shrub or tree Camellia sinensis, under the family Theaceae. Tea plant is subjected to the attack of insects, mites, nematodes and some plant pathogenic diseases. Tea production is greatly hindered due to these maladies. About 10-15% crop loss occurred by these pests per annum. In severe cases, it would be 100%. To combat these problems different groups of pesticides have been used in the tea fields since 1960. As tea is a consumable commodity, the effect of residue of pesticides in made tea is harmful to human health. In this context, biopesticides are being considered as environmentally safe, selective, biodegradable, economical and renewable alternatives for use in IPM programmes. Biopesticides are natural plant products and may be grown by the planters with minimum cost and extracted by indigenous methods. Biopesticides are secondary metabolites, which include alkaloids, terpenoids, phenolics, and minor secondary chemicals. It is estimated that as many as 2121 plant species have been reported to posses’ pest control properties. Botanicals like neem, ghora-neem, mahogoni, karanja, adathoda, sweet flag, tobacco, derris, annona, smart weed, bar weed, datura, calotropis, bidens, lantana, chrysanthemum, artemisia, marigold, clerodendrum, wild sunflower and many others may be grown by planters with minimum expense and extracted by indigenous methods. These botanical materials can be used as an alternative to chemical pesticides. These botanical extracts will help in controlling major pests of tea such as Helopeltis, red spider mite, aphids, thrips, jassid, flushworm, termites, nematodes etc. The present note reviews the information of most widely available indigenous plants that may be used for the control of insect pests of tea as a component of IPM.
Tensor Reduction for Feynman Integrals with Lorentz and Spinor Indices
Creators: name: Goode, Jae
name: Herzog, Franz
name: Kennedy, Anthony
name: Teale, Sam
name: Vermaseren, Jos
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an efficient graphical approach to construct projectors for the tensor reduction of multi-loop Feynman integrals with both Lorentz and spinor indices in $D$ dimensions. An ansatz for the projectors is constructed making use of its symmetry properties via an orbit partition formula. The graphical approach allows to identify and enumerate the orbits in each case. For the case without spinor indices we find a 1 to 1 correspondence between orbits and integer partitions describing the cycle structure of certain bi-chord graphs. This leads to compact combinatorial formulae for the projector ansatz. With spinor indices the graph-structure becomes more involved, but the method is equally applicable. Our spinor reduction formulae are based on the antisymmetric basis of $γ$ matrices, and make use of their orthogonality property. We also provide a new compact formula to pass into the antisymmetric basis. We compute projectors for vacuum tensor Feynman integrals with up to 32 Lorentz indices and up to 4 spinor indices. We discuss how to employ the projectors in problems with external momenta.
description: 59 pages, 32 tables, 3 figures; version accepted for publication in JHEP
Dynamics of K$_2$Ni$_2$(SO$_4$)$_3$ governed by proximity to a 3D spin liquid model
Creators: name: Gonzalez, M. G.
name: Noculak, V.
name: Sharma, A.
name: Favre, V.
name: Soh, J-R.
name: Magrez, A.
name: Bewley, R.
name: Jeschke, H. O.
name: Reuther, J.
name: Rønnow, H. M.
name: Iqbal, Y.
name: Živković, I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum spin liquids (QSLs) have become a key area of research in magnetism due to their remarkable properties, such as long-range entanglement, fractional excitations, pinch-point singularities, and topologically protected phenomena. In recent years, the search for QSLs has expanded into the three-dimensional world, where promising features have been found in materials that form pyrochlore and hyper-kagome lattices, despite the suppression of quantum fluctuations due to high dimensionality. One such material is the $S = 1$ K$_2$Ni$_2$(SO$_4$)$_3$ compound, which belongs to the langbeinite family consisting of two interconnected trillium lattices. Although magnetically ordered, K$_2$Ni$_2$(SO$_4$)$_3$ has been found to exhibit a highly dynamical and correlated state which can be driven into a pure quantum spin liquid under magnetic fields of only $B \simeq 4$~T. In this article, we combine inelastic neutron scattering measurements with pseudo-fermion functional renormalization group (PFFRG) and classical Monte Carlo (cMC) calculations to study the magnetic properties of K$_2$Ni$_2$(SO$_4$)$_3$, revealing a high level of agreement between the experiment and theory. We further reveal the origin of the dynamical state in K$_2$Ni$_2$(SO$_4$)$_3$ by studying a larger set of exchange parameters, uncovering an `island of liquidity' around a focal point given by a magnetic network composed of tetrahedra on a trillium lattice.
Bimorphic Floquet Topological Insulators
Creators: name: Pyrialakos, Georgios G.
name: Beck, Julius
name: Heinrich, Matthias
name: Maczewsky, Lukas J.
name: Kantartzis, Nikolaos V.
name: Khajavikhan, Mercedeh
name: Szameit, Alexander
name: Christodoulides, Demetrios N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Topological theories have established a new set of rules that govern the transport properties in a wide variety of wave-mechanical settings. In a marked departure from the established approaches that induce Floquet topological phases by specifically tailored discrete coupling protocols or helical lattice motions, we introduce a new class of bimorphic Floquet topological insulators that leverage connective chains with periodically modulated on-site potentials to unlock new topological features in the system. In exploring a 'chain-driven' generalization of the archetypical Floquet honeycomb lattice, we identify a rich phase structure that can host multiple non-trivial topological phases associated simultaneously with both Chern-type and anomalous chiral states. Experiments carried out in photonic waveguide lattices reveal a unique and strongly confined helical edge state that, owing to its origin in bulk flat bands, can be set into motion in a topologically protected fashion, or halted at will, without compromising its adherence to individual lattice sites.
description: 17 pages, 7 figures
Tabanus regularis Jaennicke 1866
Creators: name: Müller, Günter C.
name: Prozorov, Alexey M.
name: Traore, Mohamed M.
name: Revay, Edita E.
name: Hogsette, Jerome A.
name: Kline, Daniel
name: Chaskopoulou, Alexandra
name: Prozorova, Tatiana A.
name: Volkova, Julia S.
name: Diarra, Rabiatou A.
name: Petrányi, Gergely
name: Schneider, Tom
name: Beck, Robert H. - T.
name: Ignatev, Nikolai
name: Yakovlev, Roman V.
name: Cui, Liwang
name: Schlein, Yosef
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tabanidae
Tabanus
Tabanus regularis

description: 21. Tabanus regularis Jaennicke, 1866
 Berliner entomologische Zeitschrift, 10, 65.
 Type locality. France.
 Range. Palearctic, from Morocco, Algeria and Tunisia through southern Europe (including Greece) to Cyprus, Turkey, and the Levant, towards the east to South Caucasus, Iraq, Iran and in the north through southern Russia (Leclercq, 1966a; Chvála et al., 1972; Chvála, 2013). Variable specimens with paler brown color of the abdomen and entirely brownish antennae from Cyprus, Tunisia and Jerusalem were described by Szilády (1923) as a variety named rufus. Leclercq (1967) raised this form without justification to subspecific rank, according to Chvála (1972).
 New record. We observed this species in Cyprus over several years, from late June to late August, from the coastal plain up to 1500 m a.s.l. in Malaise trap catches and feeding on donkeys and horses. We recorded two females feeding on horses in Crete, on the northern foothills of the Idi Mts, 800 m in late July 2023, and we collected several females on Naxos Island not far from a pasture with horses in early August 2016 in a Malaise Trap (new record for Crete and the Cyclades).
description: Published as part of Müller, Günter C., Prozorov, Alexey M., Traore, Mohamed M., Revay, Edita E., Hogsette, Jerome A., Kline, Daniel, Chaskopoulou, Alexandra, Prozorova, Tatiana A., Volkova, Julia S., Diarra, Rabiatou A., Petrányi, Gergely, Schneider, Tom, Beck, Robert H. - T., Ignatev, Nikolai, Yakovlev, Roman V., Cui, Liwang & Schlein, Yosef, 2023, The Tabanidae (Diptera) of the Greek islands and Cyprus: An annotated checklist with remarks on ecology, zoogeography, and new records on the East Mediterranean fauna, pp. 45-65 in Ecologica Montenegrina 67 on page 54, DOI: 10.37828/em.2023.67.7, http://zenodo.org/record/13246703
Uniqueness of quantum state over time function
Creators: name: Lie, Seok Hyung
name: Ng, Nelly H. Y.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A fundamental A fundamental asymmetry exists within the conventional framework of quantum theory between space and time, in terms of representing causal relations via quantum channels and acausal relations via multipartite quantum states. Such a distinction does not exist in classical probability theory. In effort to introduce this symmetry to quantum theory, a new framework has recently been proposed, such that dynamical description of a quantum system can be encapsulated by a static quantum state over time. In particular, Fullwood and Parzygnat recently proposed the state over time function based on the Jordan product as a promising candidate for such a quantum state over time function, by showing that it satisfies all the axioms required in the no-go result by Horsman et al. However, it was unclear if the axioms induce a unique state over time function. In this work, we demonstrate that the previously proposed axioms cannot yield a unique state over time function. In response, we therefore propose an alternative set of axioms that is operationally motivated, and better suited to describe quantum states over any spacetime regions beyond two points. By doing so, we establish the Fullwood-Parzygnat state over time function as the essentially unique function satisfying all these operational axioms.
description: 5+7 pages, added new results, comments welcome
Can DtN and GenEO coarse spaces be sufficiently robust for heterogeneous Helmholtz problems?
Creators: name: Bootland, Niall
name: Dolean, Victorita
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Numerical solution of heterogeneous Helmholtz problems presents various computational challenges, with descriptive theory remaining out of reach for many popular approaches. Robustness and scalability are key for practical and reliable solvers in large-scale applications, especially for large wave number problems. In this work we explore the use of a GenEO-type coarse space to build a two-level additive Schwarz method applicable to highly indefinite Helmholtz problems. Through a range of numerical tests on a 2D model problem, discretised by finite elements on pollution-free meshes, we observe robust convergence, iteration counts that do not increase with the wave number, and good scalability of our approach. We further provide results showing a favourable comparison with the DtN coarse space. Our numerical study shows promise that our solver methodology can be effective for challenging heterogeneous applications.
Valuing Ecosystem Services in the Bang Ka Chao Green Area, Thailand
Creators: name: Petcharat, Areeyapat
name: Lee, Yohan
name: Petcharat, Areeyapat
name: Lee, Yohan
Publisher: name: Unknown
Year: 2020
Subjects: subject: Environmental Economics and Policy
subject: Valuation
subject: Ecosystem services

description: Bang Ka Chao, the largest green area in the Bangkok metropolitan area, delivers significant ecosystem services to sustain society free of charge. It is therefore difficult to achieve socially optimal services because of inefficient allocation of resources, over-consumption, and negative externalities resulting from market failures. This study assesses the value, or consumers’ willingness to pay (WTP), for enhanced ecosystem services from the Bang Ka Chao Green Area and to investigate factors influencing the WTP of Bangkok residents. The choice experiment approach was applied by interviewing 200 respondents living in the Bangkok metropolitan area. The data were collected between July and September 2016 and analyzed using a conditional logit model. The results reveal that the respondents are willing to pay USD41.5 per year to improve the ecosystem services provided by the Green Area. The respondents identified air purification as the most important service, while food products and recreational benefits were somewhat important, and bird habitat was the least important. We therefore suggest that the government take immediate steps to establish restoration projects with the concrete objective of enhancing regulating services, especially air purification. Traditional agricultural practices (mixed fruit orchards), agroforestry, and agritourism should also be implemented and promoted in the green area. Therefore, a payment for ecosystem services (PES) scheme funded by Bangkok and recreational users should be a possible approach to guarantee the quality of the ecosystem services provided by the landowners within the Bang Ka Chao Green Area.
Mitigation of stop-and-go traffic waves with intelligent vehicles at low market penetration rates
Creators: name: Martínez, Irene
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Stop-and-go traffic patterns sometimes manifest on roadways without any discernible congestion triggers. Such a phenomenon has been observed on homogeneous ring roads without lane changes. With the development of vehicle technology and measurement sensors, multiple researchers have focused on studying the influence of automated vehicles on traffic. In particular, there is a focus on the design of string-stable adaptive cruise control (ACC) strategies to dampen stop-and-go waves. However, there is no systematic comparison among different strategies nor a quantitative analysis of the oscillation reduction at low market penetration rates (MPRs). This paper proposes a framework to evaluate the impact of low MPRs across multiple ACC strategies. Then, through Monte Carlo simulations, our findings indicate that multi-vehicle anticipation technology yields nearly equivalent benefits in mitigating stop-and-go patterns compared to full vehicular connectivity, even at a modest MPR of 1\%. In contrast, partial connectivity among vehicles only eliminates stop-and-go waves if the MPR is larger.
Quasiparticle density of states and triplet correlations in superconductor/ferromagnetic-insulator structures across a sharp domain wall
Creators: name: Hijano, Alberto
name: Golovach, Vitaly N.
name: Bergeret, F. Sebastián
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A ferromagnetic insulator (FI) in contact with a superconductor (S) is known to induce a spin splitting of the BCS density of states at the FI/S interface. This spin splitting causes the Cooper pairs to reduce their singlet-state correlations and acquire odd-in-frequency triplet correlations. We consider a diffusive FI/S bilayer with a sharp magnetic domain wall in the FI and study the local quasiparticle density of states and triplet superconducting correlations. In the case of collinear alignment of the domains, we obtain analytical results by solving the Usadel equation. For a small enough exchange field or weak superconductivity, we also find an analytical expression for arbitrary magnetic textures, which reveals how the triplet component vector depends on the local magnetization of the FI. For an arbitrary angle between the magnetizations and the strength of the exchange field, we numerically solve the problem of a sharp domain wall. We finally propose two different setups based on FI/S/F stacks, where F is a ferromagnetic layer, to filter out singlet pairs and detect the presence of triplet correlations via tunneling differential conductance measurements.
description: 11 pages, 7 figures
ALGAN: Anomaly Detection by Generating Pseudo Anomalous Data via Latent Variables
Creators: name: Murase, Hironori
name: Fukumizu, Kenji
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In many anomaly detection tasks, where anomalous data rarely appear and are difficult to collect, training using only normal data is important. Although it is possible to manually create anomalous data using prior knowledge, they may be subject to user bias. In this paper, we propose an Anomalous Latent variable Generative Adversarial Network (ALGAN) in which the GAN generator produces pseudo-anomalous data as well as fake-normal data, whereas the discriminator is trained to distinguish between normal and pseudo-anomalous data. This differs from the standard GAN discriminator, which specializes in classifying two similar classes. The training dataset contains only normal data; the latent variables are introduced in anomalous states and are input into the generator to produce diverse pseudo-anomalous data. We compared the performance of ALGAN with other existing methods on the MVTec-AD, Magnetic Tile Defects, and COIL-100 datasets. The experimental results showed that ALGAN exhibited an AUROC comparable to those of state-of-the-art methods while achieving a much faster prediction time.
description: 13 pages, 8 figures
Tabanus sufis Jaennicke 1867
Creators: name: Müller, Günter C.
name: Prozorov, Alexey M.
name: Traore, Mohamed M.
name: Revay, Edita E.
name: Hogsette, Jerome A.
name: Kline, Daniel
name: Chaskopoulou, Alexandra
name: Prozorova, Tatiana A.
name: Volkova, Julia S.
name: Diarra, Rabiatou A.
name: Petrányi, Gergely
name: Schneider, Tom
name: Beck, Robert H. - T.
name: Ignatev, Nikolai
name: Yakovlev, Roman V.
name: Cui, Liwang
name: Schlein, Yosef
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tabanidae
Tabanus
Tabanus sufis

description: 22. Tabanus sufis Jaennicke, 1867
(Figs 4, 8, 12)
 Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft, 6, 332.
 Type locality. Sudan.
 Range. Afrotropical and Palearctic, widespread in Africa penetrating the Palearctic realm through the East Mediterranean from Egypt, Saudi Arabia and the Levant north and eastwards to Iraq, Iran, Pakistan and India, the species is absent from Turkey (Oldroyd, 1954; Leclercq, 1966a; Burger, 1984; Müller et al., 2012b; El-Hassan et al., 2013; Evenhuis & Pape, 2023).
 New records. In the Levant the most northern record is from northern Lebanon, a female caught 10 km east of Tripoli in a Malaise trap in mid-June 2015. The specimen is deposited in the collection of G. Müller (new record for Lebanon). We collected three females feeding on a donkey in Cyprus, 10 km NW from Larnaca, in late May 2019 (new record for Cyprus and Europe).
description: Published as part of Müller, Günter C., Prozorov, Alexey M., Traore, Mohamed M., Revay, Edita E., Hogsette, Jerome A., Kline, Daniel, Chaskopoulou, Alexandra, Prozorova, Tatiana A., Volkova, Julia S., Diarra, Rabiatou A., Petrányi, Gergely, Schneider, Tom, Beck, Robert H. - T., Ignatev, Nikolai, Yakovlev, Roman V., Cui, Liwang & Schlein, Yosef, 2023, The Tabanidae (Diptera) of the Greek islands and Cyprus: An annotated checklist with remarks on ecology, zoogeography, and new records on the East Mediterranean fauna, pp. 45-65 in Ecologica Montenegrina 67 on page 55, DOI: 10.37828/em.2023.67.7, http://zenodo.org/record/13246703
Chiral symmetry restoration and the $Δ$ matter formation in neutron stars
Creators: name: Marczenko, Michał
name: Redlich, Krzysztof
name: Sasaki, Chihiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analyze the effects of chiral symmetry restoration in hadronic matter, including the lowest-lying baryonic resonance $Δ$ based on the parity doublet model. We study the role of $Δ$ and its chiral partner on the equation of state (EoS) of dense matter under neutron star (NS) conditions of $β$-equilibrium and charge neutrality. We find that the softening of the EoS driven by the early onset of $Δ$ matter due to partial restoration of chiral symmetry allows accommodating the modern multi-messenger astrophysical constraints on the mass, radius, and tidal deformability. The softening above the saturation density is accompanied by subsequent stiffening at high densities. We also find that the matter composition in the NS cores may be different upon variations of the repulsive interactions of $Δ$ baryons in hadronic matter.
description: arXiv admin note: text overlap with arXiv:2110.11056, arXiv:2004.09566
Superradiance of Spin Defects in Silicon Carbide for Maser Applications
Creators: name: Gottscholl, Andreas
name: Wagenhöfer, Maximilian
name: Klimmer, Manuel
name: Scherbel, Selina
name: Kasper, Christian
name: Baianov, Valentin
name: Astakhov, Georgy V.
name: Dyakonov, Vladimir
name: Sperlich, Andreas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Masers as telecommunication amplifiers have been known for decades, yet their application is strongly limited due to extreme operating conditions requiring vacuum techniques and cryogenic temperatures. Recently, a new generation of masers has been invented based on optically pumped spin states in pentacene and diamond. In this study, we pave the way for masers based on spin S = 3/2 silicon vacancy (V$_{Si}$) defects in silicon carbide (SiC) to overcome the microwave generation threshold and discuss the advantages of this highly developed spin hosting material. To achieve population inversion, we optically pump the V$_{Si}$ into their $m_S$ = $\pm$1/2 spin sub-states and additionally tune the Zeeman energy splitting by applying an external magnetic field. In this way, the prerequisites for stimulated emission by means of resonant microwaves in the 10 GHz range are fulfilled. On the way to realising a maser, we were able to systematically solve a series of subtasks that improved the underlying relevant physical parameters of the SiC samples. Among others, we investigated the pump efficiency as a function of the optical excitation wavelength and the angle between the magnetic field and the defect symmetry axis in order to boost the population inversion factor, a key figure of merit for the targeted microwave oscillator. Furthermore, we developed a high-Q sapphire microwave resonator (Q ~ 10$^4$ - 10$^5$) with which we find superradiant stimulated microwave emission. In summary, SiC with optimized spin defect density and thus spin relaxation rates is well on its way of becoming a suitable maser gain material with wide-ranging applications.
description: 15 pages, 4 figures
Priority Queue Formulation of Agent-Based Bathtub Model for Network Trip Flows in the Relative Space
Creators: name: Martinez, Irene
name: Jin, Wen-long
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Agent-based models have been extensively used to simulate the behavior of travelers in transportation systems because they allow for realistic and versatile modeling of interactions. However, traditional agent-based models suffer from high computational costs and rely on tracking physical locations, raising privacy concerns. This paper proposes an efficient formulation for the agent-based bathtub model (AB2M) in the relative space, where each agent's trajectory is represented by a time series of the remaining distance to its destination. The AB2M can be understood as a microscopic model that tracks individual trips' initiation, progression, and completion and is an exact numerical solution of the bathtub model for generic (time-dependent) trip distance distributions. The model can be solved for a deterministic set of trips with a given demand pattern (defined by the start time of each trip and its distance), or it can be used to run Monte Carlo simulations to capture the average behavior and variation stochastic demand patterns, described by probabilistic distributions of trip distances and departure times. To enhance the computational efficiency, we introduce a priority queue formulation, eliminating the need to update trip positions at each time step and allowing us to run large-scale scenarios with millions of individual trips in seconds. We systematically explore the scaling properties and discuss the introduction of biases and numerical errors. The systematic exploration of scaling properties of the modeling of individual agents in the relative space with the AB2M further enhances its applicability to large-scale transportation systems and opens up opportunities for studying travel time reliability, scheduling, and mode choices.
Isbell's subfactor projections in a noetherian form
Creators: name: Dayaram, Kishan
name: Goswami, Amartya
name: Janelidze, Zurab
Publisher: name: arXiv
Year: 2024
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 18D30, 20J15, 18E13, 20E15, 06A15

description: In this paper, we revisit the 1979 work of Isbell on subfactors of groups and their projections, which he uses to establish a stronger formulation of the butterfly lemma and its consequence, the refinement theorem for subnormal series of subgroups. We point out an error in the second part of Isbell's refinement theorem, but show that the rest of his results can be extended to the general self-dual context of a noetherian form, which includes in its scope all semi-abelian categories as well as all Grandis exact categories. Furthermore, we show that Isbell's formulations of the butterfly lemma and the refinement theorem amount to canonicity of isomorphisms established in these results.
Tabanus taeniola Palisot de Beauvois 1806
Creators: name: Müller, Günter C.
name: Prozorov, Alexey M.
name: Traore, Mohamed M.
name: Revay, Edita E.
name: Hogsette, Jerome A.
name: Kline, Daniel
name: Chaskopoulou, Alexandra
name: Prozorova, Tatiana A.
name: Volkova, Julia S.
name: Diarra, Rabiatou A.
name: Petrányi, Gergely
name: Schneider, Tom
name: Beck, Robert H. - T.
name: Ignatev, Nikolai
name: Yakovlev, Roman V.
name: Cui, Liwang
name: Schlein, Yosef
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tabanidae
Tabanus
Tabanus taeniola

description: 23. Tabanus taeniola Palisot de Beauvois, 1806
(Figs 3, 7, 11)
 Insectes recueillis en Afrique et en Amérique, dans les Royaumes d’Oware et de Benin, à Saint-Domingue et dans les États-Unis, pendant les années 1786–1797, 56.
 Type locality. Nigeria.
 Range. Afrotropical and Palearctic, widespread in Africa penetrating the Palearctic to the East Mediterranean coast through Egypt and the Levant eastwards to Saudi Arabia (Oldroyd, 1954; Leclercq, 1966a; Müller et al., 2012b; El-Hassan et al., 2013; Evenhuis & Pape, 2023).
 New records. We caught a single female within a swarm of T. leleani attacking horses in Cyprus, near Káto Drys in late July 2017 (new Record for Cyprus and Europe).
description: Published as part of Müller, Günter C., Prozorov, Alexey M., Traore, Mohamed M., Revay, Edita E., Hogsette, Jerome A., Kline, Daniel, Chaskopoulou, Alexandra, Prozorova, Tatiana A., Volkova, Julia S., Diarra, Rabiatou A., Petrányi, Gergely, Schneider, Tom, Beck, Robert H. - T., Ignatev, Nikolai, Yakovlev, Roman V., Cui, Liwang & Schlein, Yosef, 2023, The Tabanidae (Diptera) of the Greek islands and Cyprus: An annotated checklist with remarks on ecology, zoogeography, and new records on the East Mediterranean fauna, pp. 45-65 in Ecologica Montenegrina 67 on page 56, DOI: 10.37828/em.2023.67.7, http://zenodo.org/record/13246703
Dynamic distance-based pricing scheme for high-occupancy-toll lanes along a freeway corridor
Creators: name: Martínez, Irene
name: Jin, Wen-Long
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Single-occupancy vehicles (SOVs) are charged to use the highoccupancy-toll (HOT) lanes, while high-occupancy-vehicles (HOVs) can drive in them at no cost. The pricing scheme for HOT lanes has been extensively studied at local bottlenecks or at the network level through computationally expensive simulations. However, the HOT lane pricing study on a freeway corridor with multiple origins and destinations as well as multiple interacting bottlenecks is a challenging problem for which no analytical results are available. In this paper, we attempt to fill the gap by proposing to study the traffic dynamics in the corridor based on the relative space paradigm. In this new paradigm, the interaction of multiple bottlenecks and trips can be captured with Vickrey's bathtub model by a simple ordinary differential equation. We consider three types of lane choice behavior and analyze their properties. Then, we propose a distance-based dynamic pricing scheme based on a linear combination of I-controllers. This closed-loop controller is independent of the model and feeds back the travel time difference between HOT lanes and general-purpose lanes. Given the mathematical tractability of the system model, we analytically study the performance of the proposed closed-loop control under constant demand and show the existence and stability of the optimal equilibrium. Finally, we verify the results with numerical simulations considering a typical peak period demand pattern. In the future, we are interested in extending this work and testing the performance of the proposed linear combination of I-controllers for other traffic flow models.
HAR-GCNN: Deep Graph CNNs for Human Activity Recognition From Highly Unlabeled Mobile Sensor Data
Creators: name: Mohamed, Abduallah
name: Lejarza, Fernando
name: Cahail, Stephanie
name: Claudel, Christian
name: Thomaz, Edison
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The problem of human activity recognition from mobile sensor data applies to multiple domains, such as health monitoring, personal fitness, daily life logging, and senior care. A critical challenge for training human activity recognition models is data quality. Acquiring balanced datasets containing accurate activity labels requires humans to correctly annotate and potentially interfere with the subjects' normal activities in real-time. Despite the likelihood of incorrect annotation or lack thereof, there is often an inherent chronology to human behavior. For example, we take a shower after we exercise. This implicit chronology can be used to learn unknown labels and classify future activities. In this work, we propose HAR-GCCN, a deep graph CNN model that leverages the correlation between chronologically adjacent sensor measurements to predict the correct labels for unclassified activities that have at least one activity label. We propose a new training strategy enforcing that the model predicts the missing activity labels by leveraging the known ones. HAR-GCCN shows superior performance relative to previously used baseline methods, improving classification accuracy by about 25% and up to 68% on different datasets. Code is available at \url{https://github.com/abduallahmohamed/HAR-GCNN}.
Assessing farmer preferences for forest conservation programs in Mato Grosso, Brazil
Creators: name: Kitts, Nolan
name: Bush, Glenn
name: Kitts, Nolan
name: Bush, Glenn
Publisher: name: Unknown
Year: 2020
Subjects: subject: Environmental Economics and Policy
subject: Market-based instruments
subject: forest conservation

description: The Conserv Project, started by the Amazon Environmental Research Institute (IPAM), aims to establish a novel market-based mechanism in the state of Mato Grosso which incentivizes farmers to conserve land that could otherwise be legally deforested. This study applies a choice experiment (CE) to elicit a farmer’s willingness to accept (WTA) compensation indirectly, by asking respondents to choose between strategically designed alternatives, assuming that people's’ preferences are revealed through the choices they make. CEs have become an increasingly popular method to generate information to support the design of environmental markets. The CE survey was implemented in two distinct and interrelated parts. Part 1 composed of focus group discussion exercises to establish the key attributes of the mechanism which would influence farmer decision and their levels, as well as explore other operational aspects of the program affecting the design of the CE. Phase 2 was the implementation of the CE in the Araguaia Valley utilizing a sample of 40 farmers split between cattle ranchers and soy producers. In conclusion, the choice model estimated provides encouraging results. From the limited sample in this preliminary study, model results clearly show that both livestock and soy farmers are likely to be responsive to a market mechanism as proposed by the Conserv project at least in the short to medium term. However, to get widespread adoption the precise policy mechanisms need to be adapted to the specific conditions of heterogeneous rural farm businesses in the two production classes.
A family of integrable maps associated with the Volterra lattice
Creators: name: Hone, A. N. W.
name: Roberts, J. A. G.
name: Vanhaecke, P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Recently Gubbiotti, Joshi, Tran and Viallet classified birational maps in four dimensions admitting two invariants (first integrals) with a particular degree structure, by considering recurrences of fourth order with a certain symmetry. The last three of the maps so obtained were shown to be Liouville integrable, in the sense of admitting a non-degenerate Poisson bracket with two first integrals in involution. Here we show how the first of these three Liouville integrable maps corresponds to genus 2 solutions of the infinite Volterra lattice, being the $g=2$ case of a family of maps associated with the Stieltjes continued fraction expansion of a certain function on a hyperelliptic curve of genus $g\geqslant 1$. The continued fraction method provides explicit Hankel determinant formulae for tau functions of the solutions, together with an algebro-geometric description via a Lax representation for each member of the family, associating it with an algebraic completely integrable system. In particular, in the elliptic case ($g=1$), as a byproduct we obtain Hankel determinant expressions for the solutions of the Somos-5 recurrence, but different to those previously derived by Chang, Hu and Xin. By applying contraction to the Stieltjes fraction, we recover integrable maps associated with Jacobi continued fractions on hyperelliptic curves, that one of us considered previously, as well as the Miura-type transformation between the Volterra and Toda lattices.
description: Final version including Maple code in Appendix B
Machine learning for optimizing complex site-specific management
Creators: name: Saikai, Yuji
name: Patel, Vivak
name: Mitchell, Paul
name: Saikai, Yuji
name: Patel, Vivak
name: Mitchell, Paul
Publisher: name: Unknown
Year: 2020
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Machine learning
subject: Bayesian optimization
subject: APSIM

description: Despite the promise of precision agriculture for increasing the productivity by implementing site-specific management, farmers remain skeptical and its utilization rate is lower than expected. A major cause is a lack of concrete approaches to higher profitability. When involving many variables in both controlled management and monitored environment, optimal site-specific management for such high-dimensional cropping systems is considerably more complex than the traditional low-dimensional cases widely studied in the existing literature, calling for a paradigm shift in optimization of site-specific management. We propose an algorithmic approach that enables farmers to efficiently learn their own site-specific management through on-farm experiments. We test its performance in two simulated scenarios---one of medium complexity with 150 management variables and one of high complexity with 864 management variables. Results show that, relative to uniform management, site-specific management learned from 5-year experiments generates $43/ha higher profits with 25 kg/ha less nitrogen fertilizer in the first scenario and $40/ha higher profits with 55 kg/ha less nitrogen fertilizer in the second scenario. Thus, complex site-specific management can be learned efficiently and be more profitable and environmentally sustainable than uniform management.
Haematopota coolsi Leclercq 1966
Creators: name: Müller, Günter C.
name: Prozorov, Alexey M.
name: Traore, Mohamed M.
name: Revay, Edita E.
name: Hogsette, Jerome A.
name: Kline, Daniel
name: Chaskopoulou, Alexandra
name: Prozorova, Tatiana A.
name: Volkova, Julia S.
name: Diarra, Rabiatou A.
name: Petrányi, Gergely
name: Schneider, Tom
name: Beck, Robert H. - T.
name: Ignatev, Nikolai
name: Yakovlev, Roman V.
name: Cui, Liwang
name: Schlein, Yosef
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tabanidae
Haematopota
Haematopota coolsi

description: 25. Haematopota coolsi Leclercq, 1966b
 Bulletin de l’Institut Agronomique et des Stations de Recherches de Gembloux, 1, 471.
 Type locality. Turkey.
 Range. Palearctic, East Mediterranean. Known from Turkey and Cyprus (Chvála et al., 2013; Evenhuis & Pape, 2023). We did not encounter this species during our visits in Cyprus.
description: Published as part of Müller, Günter C., Prozorov, Alexey M., Traore, Mohamed M., Revay, Edita E., Hogsette, Jerome A., Kline, Daniel, Chaskopoulou, Alexandra, Prozorova, Tatiana A., Volkova, Julia S., Diarra, Rabiatou A., Petrányi, Gergely, Schneider, Tom, Beck, Robert H. - T., Ignatev, Nikolai, Yakovlev, Roman V., Cui, Liwang & Schlein, Yosef, 2023, The Tabanidae (Diptera) of the Greek islands and Cyprus: An annotated checklist with remarks on ecology, zoogeography, and new records on the East Mediterranean fauna, pp. 45-65 in Ecologica Montenegrina 67 on page 56, DOI: 10.37828/em.2023.67.7, http://zenodo.org/record/13246703
Mikroplastik: Entwicklung eines Umweltbewertungskonzepts
Creators: name: Miklos, David
name: Obermaier, Nathan
name: Jekel, Martin
Publisher: name: My University
Year: 2016
Subjects: subject: Mikroplastikpartikel
subject: Ökologische Bewertung
subject: Umweltbewertung
subject: Abfall | Ressourcen
subject: Waste | Resources

description: In dieser Arbeit wird eine umfassende Literaturzusammenstellung über (potenzielle) Einträge in die Umwelt, sowie Vorkommen und Auswirkungen von MP in der aquatischen Umwelt gegeben. Darüber hinaus werden aktuelle Untersuchungsverfahren von Probenahme, Probenaufbereitung und Analytik betrachtet, kritisch diskutiert und offene Fragen benannt. Ökotestverfahren zur Ermittlung potenzieller MP-Wirkungen werden im Hinblick auf Methodik und Übertragbarkeit überprüft. In diesem Zusammenhang werden insbesondere der limnische Bereich sowie MPEinträge über den Ablauf kommunaler Kläranlagen betrachtet. Hierbei wird ein erster vorläufiger Vorschlag für Beurteilungswerte zu MP in Oberflächengewässern und in Abläufen kommunaler Kläranlagen in Deutschland abgeleitet. Schließlich wird ein Handlungsleitfaden zur Interpretation und Einordnung von Befunden von MP in der Umwelt aufgezeigt, eine mögliche Integration der MP-Thematik in vorhandene Rechtssysteme diskutiert und Vorschläge für Minderungsmaßnahmen werden unterbreitet.Quelle: http://www.umweltbundesamt.de
description: In dieser Arbeit wird eine umfassende Literaturzusammenstellung über (potenzielle) Einträge in die Umwelt, sowie Vorkommen und Auswirkungen von MP in der aquatischen Umwelt gegeben. Darüber hinaus werden aktuelle Untersuchungsverfahren von Probenahme, Probenaufbereitung und Analytik betrachtet, kritisch diskutiert und offene Fragen benannt. Ökotestverfahren zur Ermittlung potenzieller MP-Wirkungen werden im Hinblick auf Methodik und Übertragbarkeit überprüft. In diesem Zusammenhang werden insbesondere der limnische Bereich sowie MPEinträge über den Ablauf kommunaler Kläranlagen betrachtet. Hierbei wird ein erster vorläufiger Vorschlag für Beurteilungswerte zu MP in Oberflächengewässern und in Abläufen kommunaler Kläranlagen in Deutschland abgeleitet. Schließlich wird ein Handlungsleitfaden zur Interpretation und Einordnung von Befunden von MP in der Umwelt aufgezeigt, eine mögliche Integration der MP-Thematik in vorhandene Rechtssysteme diskutiert und Vorschläge für Minderungsmaßnahmen werden unterbreitet.
Physics Informed Neural Networks for Modeling of 3D Flow-Thermal Problems with Sparse Domain Data
Creators: name: Bhatnagar, Saakaar
name: Comerford, Andrew
name: Banaeizadeh, Araz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Successfully training Physics Informed Neural Networks (PINNs) for highly nonlinear PDEs on complex 3D domains remains a challenging task. In this paper, PINNs are employed to solve the 3D incompressible Navier-Stokes (NS) equations at moderate to high Reynolds numbers for complex geometries. The presented method utilizes very sparsely distributed solution data in the domain. A detailed investigation on the effect of the amount of supplied data and the PDE-based regularizers is presented. Additionally, a hybrid data-PINNs approach is used to generate a surrogate model of a realistic flow-thermal electronics design problem. This surrogate model provides near real-time sampling and was found to outperform standard data-driven neural networks when tested on unseen query points. The findings of the paper show how PINNs can be effective when used in conjunction with sparse data for solving 3D nonlinear PDEs or for surrogate modeling of design spaces governed by them.
Environmental signalling & expectations of future drought: Evidence from panel data
Creators: name: Brown, Pike
name: Walsh, Patrick
name: Booth, Pam
name: Brown, Pike
name: Walsh, Patrick
name: Booth, Pam
Publisher: name: Unknown
Year: 2020
Subjects: subject: Environmental Economics and Policy
subject: drought
subject: climate change
subject: beliefs

description: The literature on belief regarding climate is extensive, with results showing that both personal characteristics and personal experience with the effects of climate change strongly influence future expectations. The vast majority of studies rely on cross sectional data, making it difficult to ascertain the durability of expectations regarding future climate or the effect of additional environmental cues on beliefs. The few panel studies of which we are aware exploit extreme weather events to find evidence of “confirmation bias”, in which additional environmental signalling reinforces existing beliefs. In contrast, we evaluate how normal fluctuations in soil moisture causally impact expectations of future drought using a panel of New Zealand farmers. We find that environmental cues such as soil moisture scarcely affect expectations of respondents who already expected future drought to increase but that soil moisture strongly influences respondents who did not. In particular, drier soils are associated with higher expectations of future drought among these former sceptics, whether they previously believed that future drought would decrease or simply would not change. Thus, as New Zealand moves toward IPCC forecasts of more frequent and more severe drought, farmers, foresters, and growers will increasingly agree with the scientific consensus, raising the likelihood of both farm-level and public action.