cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magnetic resonance imaging of mean cell size in human breast tumors
Creators: name: Xu, Junzhong
name: Jiang, Xiaoyu
name: Li, Hua
name: Arlinghaus, Lori R.
name: McKinley, Eliot T.
name: Devan, Sean P.
name: Hardy, Benjamin M.
name: Xie, Jingping
name: Kang, Hakmook
name: Chakravarthy, Anuradha B.
name: Gore, John C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Medical Physics (physics.med-ph)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Purpose: Cell size is a fundamental characteristic of all tissues, and changes in cell size in cancer reflect tumor status and response to treatments, such as apoptosis and cell cycle arrest. Unfortunately, cell size can only be obtained by pathologic evaluation of the tumor in the current standard of care. Previous imaging approaches can be implemented on only animal MRI scanners or require relatively long acquisition times that are undesirable for clinical imaging. There is a need to develop cell size imaging for clinics. Experimental Design: We propose a new method, IMPULSED (Imaging Microstructural Parameters Using Limited Spectrally Edited Diffusion) that can characterize mean cell sizes in solid tumors. We report the use of combined sequences with different gradient waveforms on human MRI and analytical equations that link DWI signals of real gradient waveforms and specific microstructural parameters such as cell size. We also describe comprehensive validations using computer simulations, cell experiments in vitro, and animal experiments in vivo and finally demonstrate applications in pre-operative breast cancer patients. Results: With fast acquisitions (~ 7 mins), IMPULSED can provide high-resolution (1.3 mm in-plane) mapping of mean cell size of human tumors in vivo on currently-available 3T MRI scanners. All validations suggest IMPULSED provide accurate and reliable measurements of mean cell size. Conclusion: The proposed IMPULSED method can assess cell size variations in the tumor of breast cancer patients, which may have the potential to assess early response to neoadjuvant therapy.
Asymptotic expansions for the generalised trigonometric integral and its zeros
Creators: name: Nemes, Gergő
Publisher: name: arXiv
Year: 2024
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 41A60, 33B99

description: In this paper, we investigate the asymptotic properties of the generalised trigonometric integral $\operatorname{ti}(a, z, α)$ and its associated modulus and phase functions for large complex values of $z$. We derive asymptotic expansions for these functions, accompanied by explicit and computable error bounds. For real values of $a$, the function $\operatorname{ti}(a, z, α)$ possesses infinitely many positive real zeros. Assuming $a < 1$, we establish asymptotic expansions for the large zeros, accompanied by precise error estimates. The error bounds for the asymptotics of the phase function and its zeros will be derived by studying the analytic properties of both the phase function and its inverse. Additionally, we demonstrate that for real variables, the derived asymptotic expansions are enveloping, meaning that successive partial sums provide upper and lower bounds for the corresponding functions.
description: 19 pages, 2 figures, accepted for publication in Journal of Mathematical Analysis and Applications
Astronomical observatory publications: information exchange before the Internet era
Creators: name: Ellegaard, O.
name: Dorch, S. B. F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: For decades, perhaps even centuries, the exchange of publications between observatories was the most important source of information on new astronomical results, either in the form of observational data or new scientific theories. In particular, small observatories or institutions used this method. The exchange of physical material between observatories has now been replaced by the exchange of information via the Internet. Yet much of the ancient material has never been digitized and can only be found in the few existing collections of observatory publications. A recent donation of such a collection from the University of Copenhagen to our own library at the University of Southern Denmark has led us to investigate the uniqueness of such collections: Which observatories and publications are represented in the collections that still exist today? We also examine the availability of the material in the collections.
description: 8 pages, 3 figures,
Degenerate Affine Flag Varieties and Quiver Grassmannians
Creators: name: Pütz, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We study finite dimensional approximations to degenerate versions of affine flag varieties using quiver Grassmannians for cyclic quivers. We prove that they admit cellular decompositions parametrized by affine Dellac configurations, and that their irreducible components are normal Cohen-Macaulay varieties with rational singularities.
description: 26 pages. Reference [3] and [11] added. Section 2.1, Proof of Theorem 3.13 and Section 5 revised
Supplementary document for Cancellation of photothermally induced instability in an optical resonator - 5965844.pdf
Creators: name: QIN, JIAYI
name: Guccione, Giovanni
name: Ma, Jinyong
name: gu, chenyue
name: Lecamwasam, Ruvindha
name: Buchler, Ben
name: Lam, Ping
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: document
Dolichogenidea anniapicadoae Fernandez-Triana & Boudreault 2025, sp. nov.
Creators: name: Fernandez-Triana, Jose L.
name: Boudreault, Caroline
name: Whitfield, James B.
name: Höcherl, Amelie
name: Smith, M. Alex
name: Hallwachs, Winnifred
name: Janzen, Daniel H.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea anniapicadoae

description: Dolichogenidea anniapicadoae Fernandez-Triana & Boudreault sp. nov.
Figs 23 A – F, 155 A
Type material.
Holotype. Costa Rica • Female, CNC; Guanacaste, Area de Conservación Guanacaste, Sector Cacao, Sendero Cima; 10.93328, -85.45729; 1,460 m; 22.v.2000; D. H. Janzen & W. Hallwachs leg.; Malaise trap; Voucher code: DHJPAR 0012546. Paratypes. Costa Rica • 4 Females, CNC; DHJPAR 0012552, DHJPAR 0031440, DHJPAR 0034104, DHJPAR 0034159.
Diagnostic description.
Posterior 0.5–0.6 of T 1 and T 2 mostly with strong sculpture, usually longitudinal striae covering entire surface (but T 2 with small polished area centrally); T 1 parallel-sided to slightly broadening posteriorly; T 2 comparatively very transverse but with anterior and posterior margins strongly arcuate, so that T 2 length is longer medially than laterally and thus T 2 width at posterior margin is usually <3.0 × its length medially; ovipositor ~ 2.0 × as metatibia length; pterostigma with relatively large pale (yellow-white) spot at base that occupies 0.3–0.4 pterostigma length. This species has strong sculpture (usually longitudinal striae) covering posterior 0.5–0.6 of T 1 and most of T 2. However, unlike the majority of species with similarly strong sculpture, T 2 has a central area which is smooth and also T 2 is very transverse and with anterior and posterior margins strongly arcuate; body length: 2.96–3.16 mm; fore wing length: 3.56–3.76 mm. Because of that unique shape and sculpture pattern of T 2, as well as its metafemur color, it can be separate from all the species with entirely and strongly sculptured T 2 which is not transverse, as well as all the species with smooth T 2 and / or broad T 2. Among similar species, D. anniapicadoae can be distinguished from D. jorgecarvajali and D. rexhamiltoni because of its comparatively much longer ovipositor and pterostigma color.
Distribution.
Costa Rica.
Biology.
Solitary. Crambidae: Ategumia lotanalis.
DNA barcoding data.
BIN BOLD: ABY 7999 (9 sequences, 9 barcode compliant).
Etymology.
Named in honor of parataxonomist Sra. Annia Picado of Costa Rica, and of BioAlfa and the former INBio (Instituto Nacional de Biodiversity) in recognition of her two + decades dedicated to specimen preparation for the biodiversity understanding of the Diptera and Lepidoptera of Costa Rica.
description: Published as part of Fernandez-Triana, Jose L., Boudreault, Caroline, Whitfield, James B., Höcherl, Amelie, Smith, M. Alex, Hallwachs, Winnifred & Janzen, Daniel H., 2025, A revision of the parasitoid wasp genus Dolichogenidea Viereck (Hymenoptera, Braconidae) in the Neotropical region, with the description of 102 new species, pp. 1-250 in ZooKeys 1237 on pages 1-250, DOI: 10.3897/zookeys.1237.141007
Asymptotics for cliques in scale-free random graphs
Creators: name: Daly, Fraser
name: Haig, Alastair
name: Shneer, Seva
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 05C80, 60F05

description: In this paper we establish asymptotics (as the size of the graph grows to infinity) for the expected number of cliques in the Chung--Lu inhomogeneous random graph model in which vertices are assigned independent weights which have tail probabilities $h^{1-α}l(h)$, where $α>2$ and $l$ is a slowly varying function. Each pair of vertices is connected by an edge with a probability proportional to the product of the weights of those vertices. We present a complete set of asymptotics for all clique sizes and for all non-integer $α> 2$. We also explain why the case of an integer $α$ is different, and present partial results for the asymptotics in that case.
Coexistence of Commensurate and Incommensurate Antiferromagnetic Groundstates in Co$_x$NbSe$_2$ Single Crystal
Creators: name: Mandujano, H. Cein
name: Zavalij, Peter Y.
name: Manjón-Sanz, Alicia
name: Cao, Huibo
name: Rodriguez, Efrain E.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In Co$_x$NbSe$_2$, crystal symmetry, and cobalt site occupation drive the formation of two distinct magnetic phases. At $x = 1/4$, the centrosymmetric structure ($P$6$_3$/$mmc$) promotes Co-Co interactions leading to the formation of an $A$-type antiferromagnetic structure phase with a transition temperature of $T_N^A$ = 169 K. At $x = 1/3$, the non-centrosymmetric structure ($P$6$_3$22) induces a lower-temperature magnetic phase with $T_N^S$ = 28 K. We report the coexistence of both substructures within a superlattice, with a nuclear propagation vector of (1/3, 1/3, 0) relative to the host lattice. Single crystals of Co$_{0.28}$NbSe$_2$ exhibit both magnetic transitions, with $T_N^A$ corresponding to the $x \sim 1/4$ phase and $T_N^S$ corresponding to the $x \sim 1/3$ phase. Magnetic susceptibility and specific heat measurements confirm these transitions, although only the high-temperature $T_N^A$ phase significantly affects resistivity. We successfully isolate each phase in powder samples, while single crystals with an intercalation ratio of $x = 0.28$ display the coexistence of both phases in a single sample. Using single-crystal neutron diffraction, we solved the magnetic structure of the high-temperature centrosymmetric phase ($T_N^A$), and neutron powder diffraction revealed the double-$q$ magnetic structure of the low-temperature noncentrosymmetric phase ($T_N^S$)
Gamma, Gaussian and Poisson approximations for random sums using size-biased and generalized zero-biased couplings
Creators: name: Daly, Fraser
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 62E17 (Primary) 60E10, 60E15, 60F05 (Secondary)

description: Let $Y=X_1+\cdots+X_N$ be a sum of a random number of exchangeable random variables, where the random variable $N$ is independent of the $X_j$, and the $X_j$ are from the generalized multinomial model introduced by Tallis (1962). This relaxes the classical assumption that the $X_j$ are independent. We use zero-biased coupling and its generalizations to give explicit error bounds in the approximation of $Y$ by a Gaussian random variable in Wasserstein distance when either the random variables $X_j$ are centred or $N$ has a Poisson distribution. We further establish an explicit bound for the approximation of $Y$ by a gamma distribution in stop-loss distance for the special case where $N$ is Poisson. Finally, we briefly comment on analogous Poisson approximation results that make use of size-biased couplings. The special case of independent $X_j$ is given special attention throughout. As well as establishing results which extend beyond the independent setting, our bounds are shown to be competitive with known results in the independent case.
description: 19 pages; extended from original version to relax independence assumption between summands
NaturalConv: A Chinese Dialogue Dataset Towards Multi-turn Topic-driven Conversation
Creators: name: Wang, Xiaoyang
name: Li, Chen
name: Zhao, Jianqiao
name: Yu, Dong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In this paper, we propose a Chinese multi-turn topic-driven conversation dataset, NaturalConv, which allows the participants to chat anything they want as long as any element from the topic is mentioned and the topic shift is smooth. Our corpus contains 19.9K conversations from six domains, and 400K utterances with an average turn number of 20.1. These conversations contain in-depth discussions on related topics or widely natural transition between multiple topics. We believe either way is normal for human conversation. To facilitate the research on this corpus, we provide results of several benchmark models. Comparative results show that for this dataset, our current models are not able to provide significant improvement by introducing background knowledge/topic. Therefore, the proposed dataset should be a good benchmark for further research to evaluate the validity and naturalness of multi-turn conversation systems. Our dataset is available at https://ailab.tencent.com/ailab/nlp/dialogue/#datasets.
description: Accepted as a main track paper at AAAI 2021
From mean-field to complex topologies: network effects on the algorithmic bias model
Creators: name: Pansanella, Valentina
name: Rossetti, Giulio
name: Milli, Letizia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: 91D30

description: Nowadays, we live in a society where people often form their opinion by accessing and discussing contents shared on social networking websites. While these platforms have fostered information access and diffusion, they represent optimal environments for the proliferation of polluted contents, which is argued to be one of the co-causes of polarization/radicalization. Moreover, recommendation algorithms - intended to enhance platform usage - are likely to augment such phenomena, generating the so called Algorithmic Bias. In this work, we study the impact that different network topologies have on the formation and evolution of opinion in the context of a recent opinion dynamic model which includes bounded confidence and algorithmic bias. Mean-field, scale-free and random topologies, as well as networks generated by the Lancichinetti-Fortunato-Radicchi benchmark, are compared in terms of opinion fragmentation/polarization and time to convergence.
description: 11 pages, 4 figures, Complex Networks & Their Applications X
Enhancing kidney quality assessment: Power Doppler during normothermic machine perfusion
Creators: name: Fang, Yitian
name: Nikolaev, Anton V.
name: Essers, Jeroen
name: Ambagtsheer, Gisela
name: Groningen, Marian C. Clahsen-van
name: Minnee, Robert C.
name: de Bruin, Ron W. F.
name: van Soest, Gijs
Publisher: name: arXiv
Year: 2025
Subjects: subject: Medical Physics (physics.med-ph)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Objectives: Marginal donor kidneys are increasingly used for transplantation to overcome organ shortage. This study aims to investigate the additional value of Power Doppler (PD) imaging in kidney quality assessment during normothermic machine perfusion (NMP). Methods: Porcine kidneys (n=22) retrieved from a local slaughterhouse underwent 2 hours of NMP. Based on creatinine clearance (CrCl) and oxygen consumption (VO2), the kidneys were classified as functional (n=7) and non-functional (n=15) kidneys. PD imaging was performed at 30, 60, and 120 minutes, and PD metrics, including vascularization index (VI), flow index (FI), and vascularization flow index (VFI) were calculated. Renal blood flow (RBF), CrCl, and VO2 were measured at the same time points during NMP. The metrics were compared utilizing correlation analysis. Results: FI and VFI moderately correlated with CrCl (r=0.537, p<0.0001; r=0.536, p<0.0001, respectively), while VI strongly correlated with VO2 (r=0.839, p<0.0001). At 120 minutes, PD metrics demonstrated the highest diagnostic accuracy for distinguishing functional from non-functional kidneys, with an area under the curve (AUC) of 0.943 for VI, 0.924 for FI, and 0.943 for VFI. Cutoff values of 17% for VI, 50 a.u. for FI, and 9 a.u. for VFI provided 100% specificity and 73% sensitivity to identify non-functional kidneys, with an overall diagnostic accuracy of 82%. Baseline kidney biopsies showed moderate acute tubular necrosis in both groups with no significant differences. Conclusions: PD metrics strongly correlate with renal viability and effectively differentiate functional from non-functional kidneys. PD imaging can be a valuable alternative to RBF during NMP for kidney assessment.
Dolichogenidea annlisterudae Fernandez-Triana & Boudreault 2025, sp. nov.
Creators: name: Fernandez-Triana, Jose L.
name: Boudreault, Caroline
name: Whitfield, James B.
name: Höcherl, Amelie
name: Smith, M. Alex
name: Hallwachs, Winnifred
name: Janzen, Daniel H.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea annlisterudae

description: Dolichogenidea annlisterudae Fernandez-Triana & Boudreault sp. nov.
Figs 24 A – F, 25 A – F, 26 A – F, 155 B
Type material.
Holotype. Costa Rica • Female, CNC; Guanacaste, Area de Conservación Guanacaste, Sector Cacao, Sendero Cima; 10.93328, - 85.45729; 1,460 m; 29.v.2000; D. H. Janzen & W. Hallwachs leg.; Malaise trap; Voucher code: DHJPAR 0012553. Paratypes. Costa Rica • 6 Females, 4 Males, CNC; DHJPAR 0012551, DHJPAR 0012556, DHJPAR 0012561, DHJPAR 0012724, DHJPAR 0012732, DHJPAR 0013471, DHJPAR 0031468, DHJPAR 0031545, DHJPAR 0034157, DHJPAR 0033923.
Diagnostic description.
T 1 length medially ~ 3.0 × its width at posterior margin; T 2 more or less trapezoidal in shape; T 2 mostly smooth but with some sculpture around margins; tegula and humeral complex yellow; pro- and mesocoxae yellow-white or yellow; metacoxa mostly yellow with dark brown spot on anterior 0.3; metafemur mostly yellow (thin brown area dorsally on apical 0.2–0.3); metatibia brown to dark brown; body length 2.35–2.65 mm; fore wing length: 2.65–3.03 mm. Among all species with T 2 mostly to entirely smooth and pro- and mesocoxae pale, D. annlisterudae can be distinguished by T 1 shape, T 2 shape and sculpture, and color of tegula, humeral complex and coxae, mesofemur and metatibia.
Distribution.
Costa Rica.
Biology.
No host data available.
DNA barcoding data.
BINs BOLD: AAB 5549 (52 sequences, 45 barcode compliant), and BOLD: ACF 0272 (16 sequences, 9 barcode compliant).
Etymology.
Named after Anne Listerud, neighbor to DHJ and WH in Philadelphia, who has helped the inventory in many ways.
Notes.
Specimens of BIN BOLD: AAB 5549 have stigma centrally whitish, T 2 slightly less sculptured (almost entirely smooth), and F 15 comparatively shorter (its length ~ 0.5 length of F 16); whereas the three specimens of BIN BOLD: ACF 0272 have entirely brown stigma, T 2 slightly more sculptured (only centrally smooth), and F 15 comparatively longer (its length ~ 0.7 length of F 16). However, those differences are very subtle and only three females of each BIN were available for study. They were collected by Malaise traps in the same locality (1 km apart from each other) and there is no host data for any of them. Because their DNA barcodes are 98.72 % similar (1.28 % bp different) we here consider them to represent the same species.
description: Published as part of Fernandez-Triana, Jose L., Boudreault, Caroline, Whitfield, James B., Höcherl, Amelie, Smith, M. Alex, Hallwachs, Winnifred & Janzen, Daniel H., 2025, A revision of the parasitoid wasp genus Dolichogenidea Viereck (Hymenoptera, Braconidae) in the Neotropical region, with the description of 102 new species, pp. 1-250 in ZooKeys 1237 on pages 1-250, DOI: 10.3897/zookeys.1237.141007
Multi-task learning for virtual flow metering
Creators: name: Sandnes, Anders T.
name: Grimstad, Bjarne
name: Kolbjørnsen, Odd
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Virtual flow metering (VFM) is a cost-effective and non-intrusive technology for inferring multiphase flow rates in petroleum assets. Inferences about flow rates are fundamental to decision support systems that operators extensively rely on. Data-driven VFM, where mechanistic models are replaced with machine learning models, has recently gained attention due to its promise of lower maintenance costs. While excellent performances in small sample studies have been reported in the literature, there is still considerable doubt about the robustness of data-driven VFM. In this paper, we propose a new multi-task learning (MTL) architecture for data-driven VFM. Our method differs from previous methods in that it enables learning across oil and gas wells. We study the method by modeling 55 wells from four petroleum assets and compare the results with two single-task baseline models. Our findings show that MTL improves robustness over single-task methods, without sacrificing performance. MTL yields a 25-50% error reduction on average for the assets where single-task architectures are struggling.
description: 23 pages, 11 figures
Linear measurements from nonlinear sensors: identifying distortion with incidental noise
Creators: name: Gunn, Lachlan J.
name: Allison, Andrew
name: Abbott, Derek
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Nonlinearity in many systems is heavily dependent on component variation and environmental factors such as temperature. This is often overcome by keeping signals close enough to the device's operating point that it appears approximately linear. But as the signal being measured becomes larger, the deviation from linearity increases, and the device's nonlinearity specification will be exceeded. This limits the range over which the device will produce directly useful measurements, often to far less than the device's safe range of operation.
Boosted and semi-boosted all-hadronic $t\bar{t}$ reconstruction performance on kinematic variables for selected BSM models using a 2D extesion of the BumpHunter algorithm
Creators: name: Kvita, Jiri
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We explore the usage of boosted as well as semi-boosted topologies in all-hadronic $t\bar{t}$ final states in simulated $pp$ collisions at $\sqrt{s} = 14\,$TeV, with top quarks decaying into a boosted hadronic top-jet or a $W$-jet and an isolated $b$-jet. Correlations between selected kinematic variables and their shapes are studied for scalar and vector resonances decaying to a pair of top quarks, and also for a models of $t\bar{t}$-associated production with an invisible dark matter particle pair. Stacked signal$+$background samples have been investigated in terms of the ability to resolve an excess of events over the Standard Model background in terms of the $t\bar{t}$ invariant mass, top quark transverse momentum and other 1D and 2D spectra using a parameterized detector simulation. A 2D extension of the BumpHunter algorithm is proposed, resulting in an improved signal sensitivity in specific 2D areas. We identify the most promising variables with the largest signal significance and smaller sensitivity to experimental uncertainties realated to the jet energy calibration. We compare to statistical tests computing the background-only hypothesis compatibility and a likelihood fit of the signal strength.
description: 51 pages, 33 figures
Optimization of x-ray event screening using ground and in-orbit data for the Resolve instrument onboard the XRISM satellite
Creators: name: Mochizuki, Yuto
name: Tsujimoto, Masahiro
name: Kilbourne, Caroline A.
name: Eckart, Megan E.
name: Ishisaki, Yoshitaka
name: Kanemaru, Yoshiaki
name: Leutenegger, Maurice A.
name: Mizumoto, Misaki
name: Porter, Frederick S.
name: Sato, Kosuke
name: Sawada, Makoto
name: Yamada, Shinya
Publisher: name: arXiv
Year: 2025
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The XRISM (X-Ray Imaging and Spectroscopy Mission) satellite was successfully launched and put into a low-Earth orbit on September 6, 2023 (UT). The Resolve instrument onboard XRISM hosts an x-ray microcalorimeter detector, which was designed to achieve a high-resolution ($\leq$7 eV FWHM at 6 keV), high-throughput, and non-dispersive spectroscopy over a wide energy range. It also excels in a low background with a requirement of $< 2 \times 10^{-3}$ s$^{-1}$ keV$^{-1}$ (0.3--12.0 keV), which is equivalent to only one background event per spectral bin per 100 ks exposure. Event screening to discriminate x-ray events from background is a key to meeting the requirement. We present the result of the Resolve event screening using data sets recorded on the ground and in orbit based on the heritage of the preceding x-ray microcalorimeter missions, in particular, the Soft X-ray Spectrometer (SXS) onboard ASTRO-H. We optimize and evaluate 19 screening items of three types based on (1) the event pulse shape, (2) relative arrival times among multiple events, and (3) good time intervals. We show that the initial screening, which is applied for science data products in the performance verification phase, reduces the background rate to $1.8 \times 10^{-3}$ s$^{-1}$ keV$^{-1}$ meeting the requirement. We further evaluate the additional screening utilizing the correlation among some pulse shape properties of x-ray events and show that it further reduces the background rate particularly in the $<$2 keV band. Over 0.3--12 keV, the background rate becomes $1.0 \times 10^{-3}$ s$^{-1}$ keV$^{-1}$.
Dolichogenidea annychaverae Fernandez-Triana & Boudreault 2025, sp. nov.
Creators: name: Fernandez-Triana, Jose L.
name: Boudreault, Caroline
name: Whitfield, James B.
name: Höcherl, Amelie
name: Smith, M. Alex
name: Hallwachs, Winnifred
name: Janzen, Daniel H.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea annychaverae

description: Dolichogenidea annychaverae Fernandez-Triana & Boudreault sp. nov.
Fig. 27 A – E
Type material.
Holotype. Costa Rica • Female, CNC; Guanacaste, Area de Conservación Guanacaste, Sector Santa Rosa, Bosque San Emilio, 10.8439, -85.6138; 300 m; 26.iv.1999; D. H. Janzen & W. Hallwachs leg.; Malaise trap; Voucher code: DHJPAR 0013185.
Diagnostic description.
F 15 comparatively sub-cubic, L / W 1.15 ×; scutellar disc smooth and shiny; propodeum with short carinae weakly defining an areola only on posterior half or less; T 1 and T 2 smooth; T 1 strongly narrowing near posterior margin, T 1 length 2.0 × its maximum width, and T 1 width at anterior margin 2.0 × T 1 width at posterior margin; ovipositor sheath length 1.15 × metatibia length; most legs dark brown to black; body length: 1.80 mm; fore wing length: 2.08 mm. Among all species with dark coxae and smooth T 1 and T 2, D. annychaverae is distinguished by shape of T 1, overall body sculpture, small body size and ovipositor sheath length. D. alanflemingi is morphologically similar but has F 15 comparatively much longer, T 1 comparatively thinner and with different shape, ovipositor sheath comparatively shorter (see key for better diagnosis of these two species). They also have different DNA barcodes.
Distribution.
Costa Rica.
Biology.
No host data available.
DNA barcoding data.
BIN BOLD: AAD 5258 (7 sequences, 7 barcode compliant).
Etymology.
Named after Anny Chavera of San Jose, Costa Rica in recognition of her years of biodiversity administration.
description: Published as part of Fernandez-Triana, Jose L., Boudreault, Caroline, Whitfield, James B., Höcherl, Amelie, Smith, M. Alex, Hallwachs, Winnifred & Janzen, Daniel H., 2025, A revision of the parasitoid wasp genus Dolichogenidea Viereck (Hymenoptera, Braconidae) in the Neotropical region, with the description of 102 new species, pp. 1-250 in ZooKeys 1237 on pages 1-250, DOI: 10.3897/zookeys.1237.141007
Guided Optimization for Image Processing Pipelines
Creators: name: Ikarashi, Yuka
name: Ragan-Kelley, Jonathan
name: Fukusato, Tsukasa
name: Kato, Jun
name: Igarashi, Takeo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Writing high-performance image processing code is challenging and labor-intensive. The Halide programming language simplifies this task by decoupling high-level algorithms from "schedules" which optimize their implementation. However, even with this abstraction, it is still challenging for Halide programmers to understand complicated scheduling strategies and productively write valid, optimized schedules. To address this, we propose a programming support method called "guided optimization." Guided optimization provides programmers a set of valid optimization options and interactive feedback about their current choices, which enables them to comprehend and efficiently optimize image processing code without the time-consuming trial-and-error process of traditional text editors. We implemented a proof-of-concept system, Roly-poly, which integrates guided optimization, program visualization, and schedule cost estimation to support the comprehension and development of efficient Halide image processing code. We conducted a user study with novice Halide programmers and confirmed that Roly-poly and its guided optimization was informative, increased productivity, and resulted in higher-performing schedules in less time.
Noise-Aware Quantum Amplitude Estimation
Creators: name: Herbert, Steven
name: Williams, Ifan
name: Guichard, Roland
name: Ng, Darren
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this article, based on some simple and reasonable assumptions, we derive a Gaussian noise model for quantum amplitude estimation. We provide results from quantum amplitude estimation run on various IBM superconducting quantum computers and on Quantinuum's H1 trapped-ion quantum computer to show that the proposed model is a good fit for real-world experimental data. We also show that the proposed Gaussian noise model can be easily composed with other noise models in order to capture effects that are not well described by Gaussian noise. We give a generalized procedure for how to embed this noise model into any quantum-phase-estimation-free quantum amplitude estimation algorithm, such that the amplitude estimation is "noise aware." We then provide experimental results from running an implementation of noise-aware quantum amplitude estimation using data from an IBM superconducting quantum computer, demonstrating that the addition of "noise awareness" serves as an effective means of quantum error mitigation.
description: 27 pages, 14 figures; update corresponding to final published version
Quantum Criticality of Type-I and Critically Tilted Dirac Semimetals
Creators: name: Hu, Huanzhi
name: Krüger, Frank
Publisher: name: arXiv
Year: 2025
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the universality of an Ising symmetry breaking phase transition of tilted two-dimensional Dirac fermions, in the type-I phase as well as at the Lifshitz transition between a type-I and a type-II semimetal, where the Fermi surface changes from point-like to one with electron and hole pockets that touch at the overtilted Dirac cones. We compute the Landau damping of long-wavelength order parameter fluctuations by tilted Dirac fermions and use the resulting IR propagator as input for a renormalisation-group analysis of the resulting Gross-Neveu-Yukawa field theory. We first demonstrate that the criticality of tilted type-I fermions is controlled by a line of fixed points along which the poles of the renormalised Green function correspond to an untilted Dirac spectrum with varying anisotropy of Fermi velocities. At the phase transition the Lorentz invariance is restored, resulting in the same critical exponents as for conventional Dirac systems. The multicritical point is given by the endpoint of the fixed-point line. It can be approached along any path in parameter space that avoids the fixed point line of the critical type-I semimetal. We show that the critical exponents at the Lifshitz point are different and that Lorentz invariance is broken.
description: For an issue of Physics C dedicated to Jan Zaanen
Doping-induced structural transformation in the spin-1/2 triangular-lattice antiferromagnet Na$_{2}$Ba$_{1-x}$Sr$_{x}$Co(PO$_{4}$)$_{2}$
Creators: name: Zhang, Chuandi
name: Xu, Qianhui
name: Zeng, Xu-Tao
name: Lyu, Chao
name: Lin, Zhengwang
name: Hao, Jiazheng
name: Deng, Sihao
name: He, Lunhua
name: Xiao, Yinguo
name: Ye, Yu
name: Chen, Ziyu
name: Sheng, Xian-Lei
name: Jin, Wentao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effects of Sr doping on the structural properties of Na$_{2}$BaCo(PO$_{4}$)$_{2}$, a spin-1/2 triangular-lattice antiferromagnet as a quantum spin liquid candidate, are investigated by complementary x-ray and neutron powder diffraction measurements. It is found that in Na$_{2}$Ba$_{1-x}$Sr$_{x}$Co(PO$_{4}$)$_{2}$ (NBSCPO), the trigonal phase (space group $\mathit{P}$$\bar{3}$$\mathit{m}$1) with a perfect triangular lattice of Co$^{2+}$ ions is structurally stable when the doping level of Sr is below 30% ($\mathit{x}$ $\le$ 0.3), while a pure monoclinic phase (space group $\mathit{P}$2$_{1}$/$\mathit{a}$) with slight rotations of CoO$_{6}$ octahedra and displacements of Ba$^{2+}$/Sr$^{2+}$ ions will be established when the Sr doping level is above 60% ($\mathit{x}$ $\ge$ 0.6). Such a doping-induced structural transformation in NBSCPO is supported by first-principles calculations and Raman spectroscopy. Na$_{2}$SrCo(PO$_{4}$)$_{2}$, a novel spin-1/2 triangular-lattice antiferromagnet with glaserite-type structure, although monoclinically distorted, exhibits no long-range magnetic order down to 2 K and a similar negative Curie-Weiss temperature as Na$_{2}$BaCo(PO$_{4}$)$_{2}$ with a perfect triangular lattice, suggesting the robustness of magnetic exchange interaction against the Ba/Sr substitutions.
description: 26 pages, 7 figures
First Betti number of the path homology of random directed graphs
Creators: name: Chaplin, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 05C20, 05C80, 55U15, 60C05, 62F03

description: Path homology is a topological invariant for directed graphs, which is sensitive to their asymmetry and can discern between digraphs which are indistinguishable to the directed flag complex. In Erdös-Rényi directed random graphs, the first Betti number undergoes two distinct transitions, appearing at a low-density boundary and vanishing again at a high-density boundary. Through a novel, combinatorial condition for digraphs we describe both sparse and dense regimes under which the first Betti number of path homology is zero with high probability. We combine results of Grigor'yan et al., regarding generators for chain groups, with methods of Kahle and Meckes in order to determine regimes under which the first Betti number is positive with high probability. Together, these results describe the gradient of the lower boundary and yield bounds for the gradient of the upper boundary. With a view towards hypothesis testing, we obtain tighter bounds on the probability of observing a positive first Betti number in a high-density digraph of finite size. For comparison, we apply these techniques to the directed flag complex and derive analogous results.
Case Study Analysis for Sector Research and Teaching Support
Creators: name: Schiefer, Gerhard
Publisher: name: CentMA
Year: 2016
Subjects: food chain; case study

description: The use of case studies in dealing with problems of the food sector is gaining increasingly attention in the scientific community. Case-based reasoning supports as a scientific approach the analysis of problems, relationships, behavior, and development directions of the sector and may contribute to understanding the sector’s opportunities and abilities in meeting the challenges of the future. This editorial provides a short introduction into the case study approach and links it to the publications in the special issue which cover case studies from the US, Canada, South America, Europe, and Africa.
description: International Journal on Food System Dynamics, Vol 7, No 2 (2016): Special issue: Business case study analysis
Supplementary document for The Faraday effect in magnetoplasmonic nanostructures with spatial modulation of magnetization - 5966163.pdf
Creators: name: Borovkova, Olga
name: Lutsenko, Savelii
name: Sylgacheva, Daria
name: Kalish, Andrey
name: Belotelov, Vladimir
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supporting data of transmission spectra, illustration of mode-magnetization interplay, magnetization modulation by spin waves, possibilities for sensing applications
Mi Pueblo Food Center
Creators: name: Babb, Alexis A.
name: Baker, Gregory A.
name: Robinson, Courtney N.
name: Harwood, Michael J.
Publisher: name: CentMA
Year: 2016
Subjects: supermarket industry; sustainability; SWOT

description: This case describes a current growth opportunity for Mi Pueblo Food Center, a Hispanic grocery chain with locations throughout the Bay Area, California. The CEO of Mi Pueblo is contemplating opening a new store location in East Palo Alto, CA, which has been without a local, full-service grocery store for over 20 years. Case objectives are for students to develop an understanding of how the grocery industry operates, the risks and opportunities associated with opening a new grocery store location, and the impact on social, environmental, and economic sustainability. The SWOT (Strengths, Weaknesses, Opportunities, Threats) framework is used to analyze whether or not it is feasible for Mi Pueblo to open a new location in East Palo Alto. This case may be used with students in graduate and advanced undergraduate courses.
description: International Journal on Food System Dynamics, Vol 7, No 2 (2016): Special issue: Business case study analysis
Diversidad de esqueletos de equinodermos del golfo de México
Creators: name: Solís-Marín, F. A.
name: Hernández-Díaz, Y. Q
name: Sotelo-Casas, R. C.
name: Mendoza-Garfias, B.
name: Cervantes-Aguilar, A. P.
name: Simoes, Nuno
Publisher: name: Zenodo
Year: 2023
Subjects: subject: equinodermos
subject: Echinodermata
subject: Echinodermata/classification
subject: Marine fauna
subject: Species
subject: Animal species
subject: Species
subject: Marine biodiversity
subject: Biodiversity
subject: Marine biodiversity
subject: GBIF: 50
subject: Echinoderm skeletons

description: Este cartel es producto del proyecto BDMY (www.bdmy.org.mx), el cual fue producido en colaboración con la Universidad Nacional Autónoma de México y Kalanbio A.C (www.kalanbio.org).

La información de este póster fue revisada y validada por un grupo de especialistas en el taxón.

English version: 10.5281/zenodo.7626811

Designed and illustrated by: naturae.art@gmail.com
Tracking X-ray Variability in Next Generation EHT LLAGN Targets
Creators: name: Ford, Nicole M.
name: Nowak, Michael
name: Ramakrishnan, Venkatessh
name: Haggard, Daryl
name: Dage, Kristen
name: Nair, Dhanya G.
name: Chan, Chi-kwan
Publisher: name: arXiv
Year: 2025
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a 5 month NICER X-ray monitoring campaign for two low luminosity active galactic nuclei (LLAGNs) -- NGC 4594 and IC 1459 -- with complementary Swift and NuSTAR observations. Utilizing an absorbed power law and thermal source model combined with NICER's SCORPEON background model, we demonstrate the effectiveness of joint source/background modeling for constraining emission from faint, background-dominated targets. Both sources are dominated by nuclear power law emission with photon indices $Γ\sim 1.5 - 2$, with NGC 4594 being slightly harder than IC 1459. The thermal contribution in both sources is fainter, but constant, with $kT \sim 0.5$ keV ($\sim 5 \times 10^6$ K). The power law flux and $Γ$ are strongly anti-correlated in both sources, as has been seen for other LLAGNs with radiatively inefficient accretion flows. NGC 4594 is the brighter source and exhibits significant aperiodic variability. Its variability timescale with an upper limit of $5 - 7$ days indicates emission originating from $< 100 R_{g}$, at the scale of the inner accretion flow. A spectral break found at $\sim 6$ keV, while tentative, could arise from synchrotron/inverse compton emission. This high-cadence LLAGN X-ray monitoring campaign underlines the importance of multi-wavelength variability studies for a sample of LLAGNs to truly understand their accretion and outflow physics.
description: 14 pages, 5 figures, 5 tables. Updated to match version published in ApJ
Uncovering migration systems through spatio-temporal tensor co-clustering
Creators: name: Almquist, Zack W.
name: Nguyen, Tri Duc
name: Sorensen, Mikael
name: Fu, Xiao
name: Sidiropoulos, Nicholas D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: A central problem in the study of human mobility is that of migration systems. Typically, migration systems are defined as a set of relatively stable movements of people between two or more locations over time. While these emergent systems are expected to vary over time, they ideally contain a stable underlying structure that could be discovered empirically. There have been some notable attempts to formally or informally define migration systems, however they have been limited by being hard to operationalize, and by defining migration systems in ways that ignore origin/destination aspects and/or fail to account for migration dynamics. In this work we propose a novel method, spatio-temporal (ST) tensor co-clustering, stemming from signal processing and machine learning theory. To demonstrate its effectiveness for describing stable migration systems we focus on domestic migration between counties in the US from 1990-2018. Relevant data for this period has been made available through the US Internal Revenue Service. Specifically, we concentrate on three illustrative case studies: (i) US Metropolitan Areas, (ii) the state of California, and (iii) Louisiana, focusing on detecting exogenous events such as Hurricane Katrina in 2005. Finally, we conclude with discussion and limitations of this approach.
The Physical Nature of the Auxiliary Modulation Coordinate: A Comprehensive Analysis
Creators: name: Young, Christopher
Publisher: name: Zenodo
Year: 2025
Subjects: gravitation
string theory
verlinde
emergent gravity
entropic gravity
gravity
general relativity
stress energy tensor

description: The Auxiliary Modulation Coordinate (AMC) framework represents a fundamental advancement in our understanding of physical reality. This paper establishes that the AMC is not merely a mathematical abstraction but a physical dimension manifested in observable phenomena. Through rigorous analysis of gravitational field measurements and quantum mechanical behaviors, we demonstrate how the AMC's four dynamic processes---Information Flow, Baseline Resonance, Rotational Modulation, and Structured Localization---directly map to physical observables. Unlike traditional approaches that treat quantum mechanics and general relativity as disparate domains, the AMC framework reveals their common origin in modulation field dynamics. By examining the gravitational field of Pluto as a critical test case, we show precise mathematical correspondences between AMC dynamics and conventional gravitational parameters, yielding accurate predictions that match empirical measurements. These findings strongly suggest that the AMC represents a genuine physical aspect of reality, manifesting across multiple domains and providing a unifying structure that bridges quantum behavior and classical gravity through a single coherent framework.
The Tanga Dairy Platform: Fostering Innovations for more Efficient Dairy Chain Coordination in Tanzania
Creators: name: Cadilhon, Jean-Joseph
name: Pham, Ngoc Diep
name: Maass, Brigitte L.
Publisher: name: CentMA
Year: 2016
Subjects: Dairy value chain; Innovation platform; Commodity association; Tanzania

description: The Tanga Dairy Platform, created in 2008, is an informal forum of different stakeholders involved in the dairy industry of Tanzania’s Northeastern Tanga region. The platform’s objective is to exchange knowledge and develop joint actions to common problems. Six years on, it is a sustainable example of a commodity association addressing the joint problems of the region’s dairy industry. The platform has achieved a common understanding among chain actors on dairy price structure; it has successfully lobbied policy makers to reduce value-added tax on dairy inputs and products, and to remove limitations on urban dairy farming in Tanga city.
description: International Journal on Food System Dynamics, Vol 7, No 2 (2016): Special issue: Business case study analysis