cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tikhonov regularization with oversmoothing penalty for non-linear ill-posed problems in Hilbert scales
Creators: name: Hofmann, Bernd
name: Mathé, Peter
Publisher: name: arXiv
Year: 2017
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 47J06, 65J20

description: We study the Tikhonov regularization for ill-posed non-linear operator equations in Hilbert scales. Our focus is on the interplay between the smoothness-promoting properties of the penalty and the smoothness inherent in the solution. The objective is to study the situation when the unknown solution fails to have a finite penalty value, hence when the penalty is oversmoothing. By now this case was only studied for linear operator equations in Hilbert scales. We extend those results to certain classes of non-linear problems. The main result asserts that under appropriate assumptions order optimal reconstruction is still possible. In an appendix we highlight that the non-linearity assumption underlying the present analysis is met for specific applications.
description: a spurious constraint is now abandonded; additionally some citations are added
Characteristic cycles and the conductor of direct image
Creators: name: Saito, Takeshi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F20

description: We prove the functoriality for proper push-forward of the characteristic cycles of constructible complexes by morphisms of smooth projective schemes over a perfect field, under the assumption that the direct image of the singular support has the dimension at most that of the target of the morphism. The functoriality is deduced from a conductor formula which is a special case for morphisms to curves. The conductor formula in the constant coefficient case gives the geometric case of a formula conjectured by Bloch.
description: 41 pages. Proposition 2.3.3 is corrected in v2. New subsection 1.1 is added in v3 to correct the proof of Lemma 1.4.9
Universal kernel-type estimation of random fields
Creators: name: Linke, Yu. Yu.
name: Borisov, I. S.
name: Ruzankin, P. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: G.3
subject: 62G08

description: Consistent weighted least square estimators are proposed for a wide class of nonparametric regression models with random regression function, where this real-valued random function of $k$ arguments is assumed to be continuous with probability 1. We obtain explicit upper bounds for the rate of uniform convergence in probability of the new estimators to the unobservable random regression function for both fixed or random designs. In contrast to the predecessors' results, the bounds for the convergence are insensitive to the correlation structure of the $k$-variate design points. As an application, we study the problem of estimating the mean and covariance functions of random fields with additive noise under dense data conditions. The theoretical results of the study are illustrated by simulation examples which show that the new estimators are more accurate in some cases than the Nadaraya--Watson ones. An example of processing real data on earthquakes in Japan in 2012--2021 is included.
description: To appear in Statistics
Superconductivity in Type-II Weyl Semimetals
Creators: name: Alidoust, M.
name: Halterman, K.
name: Zyuzin, A. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study superconductivity in a Weyl semimetal with a tilted dispersion around two Weyl points of opposite chirality. In the absence of any tilt, the state with zero momentum pairing between two Fermi sheets enclosing each Weyl point has four point nodes in the superconducting gap function. Moreover, the surface of the superconductor hosts Fermi arc states and Majorana flat bands. We show that a quantum phase transition occurs at a critical value of the tilt, at which two gap nodes disappear by merging at the center of the first Brillouin zone, or by escaping at its edges, depending on the direction of the tilt. The region in the momentum space that the Majorana flat band occupies is found to increase as the tilt parameter is made larger. Additionally, the superconducting critical temperature and electronic specific heat can be enhanced in the vicinity of the quantum phase transition due to the singularity in the electronic density of states.
description: 8 pages, 4 figures
SysNoise: Exploring and Benchmarking Training-Deployment System Inconsistency
Creators: name: Wang, Yan
name: Li, Yuhang
name: Gong, Ruihao
name: Liu, Aishan
name: Wang, Yanfei
name: Hu, Jian
name: Yao, Yongqiang
name: Zhang, Yunchen
name: Xiao, Tianzi
name: Yu, Fengwei
name: Liu, Xianglong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Extensive studies have shown that deep learning models are vulnerable to adversarial and natural noises, yet little is known about model robustness on noises caused by different system implementations. In this paper, we for the first time introduce SysNoise, a frequently occurred but often overlooked noise in the deep learning training-deployment cycle. In particular, SysNoise happens when the source training system switches to a disparate target system in deployments, where various tiny system mismatch adds up to a non-negligible difference. We first identify and classify SysNoise into three categories based on the inference stage; we then build a holistic benchmark to quantitatively measure the impact of SysNoise on 20+ models, comprehending image classification, object detection, instance segmentation and natural language processing tasks. Our extensive experiments revealed that SysNoise could bring certain impacts on model robustness across different tasks and common mitigations like data augmentation and adversarial training show limited effects on it. Together, our findings open a new research topic and we hope this work will raise research attention to deep learning deployment systems accounting for model performance. We have open-sourced the benchmark and framework at https://modeltc.github.io/systemnoise_web.
description: Proceedings of Machine Learning and Systems. 2023 Mar 18
3D Pose-Based Temporal Action Segmentation for Figure Skating: A Fine-Grained and Jump Procedure-Aware Annotation Approach
Creators: name: Tanaka, Ryota
name: Suzuki, Tomohiro
name: Fujii, Keisuke
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Understanding human actions from videos is essential in many domains, including sports. In figure skating, technical judgments are performed by watching skaters' 3D movements, and its part of the judging procedure can be regarded as a Temporal Action Segmentation (TAS) task. TAS tasks in figure skating that automatically assign temporal semantics to video are actively researched. However, there is a lack of datasets and effective methods for TAS tasks requiring 3D pose data. In this study, we first created the FS-Jump3D dataset of complex and dynamic figure skating jumps using optical markerless motion capture. We also propose a new fine-grained figure skating jump TAS dataset annotation method with which TAS models can learn jump procedures. In the experimental results, we validated the usefulness of 3D pose features as input and the fine-grained dataset for the TAS model in figure skating. FS-Jump3D Dataset is available at https://github.com/ryota-skating/FS-Jump3D.
description: 10 pages, 7th ACM International Workshop on Multimedia Content Analysis in Sports
Quantum transport through MoS$_2$ constrictions defined by photodoping
Creators: name: Epping, Alexander
name: Banszerus, Luca
name: Güttinger, Johannes
name: Krückeberg, Luisa
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Hassler, Fabian
name: Beschoten, Bernd
name: Stampfer, Christoph
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a device scheme to explore mesoscopic transport through molybdenum disulfide (MoS$_2$) constrictions using photodoping. The devices are based on van-der-Waals heterostructures where few-layer MoS$_2$ flakes are partially encapsulated by hexagonal boron nitride (hBN) and covered by a few-layer graphene flake to fabricate electrical contacts. Since the as-fabricated devices are insulating at low temperatures, we use photo-induced remote doping in the hBN substrate to create free charge carriers in the MoS$_2$ layer. On top of the device, we place additional metal structures, which define the shape of the constriction and act as shadow masks during photodoping of the underlying MoS$_2$/hBN heterostructure. Low temperature two- and four-terminal transport measurements show evidence of quantum confinement effects.
description: 9 pages, 6 figures
Cosmological constraints on dark energy in $f(Q)$ gravity: A parametrized perspective
Creators: name: Mussatayeva, A.
name: Myrzakulov, N.
name: Koussour, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we focus on the parametrization of the effective equation of state (EoS) parameter within the framework of $f(Q)$ symmetric teleparallel gravity. Here, the gravitational action is represented by an arbitrary function of the non-metricity scalar $Q$. By utilizing a specific parametrization of the effective EoS parameter and a power-law model of $f(Q)$ theory, namely $f(Q)=βQ^{\left( m+1\right) }$ (where $β$ and $m$ are arbitrary constants), we derive the cosmological solution of the Hubble parameter $H(z)$. To constrain model parameters, we employ recent observational data, including the Observational Hubble parameter Data ($OHD$), Baryon Acoustic Oscillations data ($BAO$), and Type Ia supernovae data ($SNe$ Ia). The current constrained value of the deceleration parameter is found to be $q_{0}=-0.50^{+0.01}_{-0.01}$, indicating that the current Universe is accelerating. Furthermore, we examine the evolution of the density, EoS, and $Om(z)$ diagnostic parameters to deduce the accelerating nature of the Universe. Finally, we perform a stability analysis with linear perturbations to confirm the model's stability.
description: Physics of the Dark Universe published version
Changes in tear film function in patients after pterygium excision surgery done under topical anesthesia with and without conjunctival autograft.
Creators: name: Dr Raina Jain
name: Dr Pravin Tidake
Publisher: name: Zenodo
Year: 2023
Subjects: Pterygium, Tear film, Schirmer's Test, Tear film Break Up Time, Conjunctival autograft, Dry Eye, Meibomian gland.

description: Spirit Checklist Changes in tear film function in patients after pterygium excision surgery done under topical anesthesia with and without conjunctival autograft.
Effects of a Late Gravitational Transition on Gravitational Waves and Anticipated Constraints
Creators: name: Paraskevas, Evangelos Achilleas
name: Perivolaropoulos, Leandros
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the evolution of gravitational waves through discontinuous evolution (transition) of the Hubble expansion rate $H(z)$ at a sudden cosmological singularity, which may be due to a transition of the value of the gravitational constant. We find the evolution of the scale factor and the gravitational wave waveform through the singularity by imposing the proper boundary conditions. We also use existing cosmological data and mock data of future gravitational wave experiments (the ET) to impose current and anticipated constraints on the magnitude of such a transition. We show that mock data of the Einstein Telescope can reduce the uncertainties by up to a factor of three depending on the cosmological parameter considered.
description: 40 pages, 15 Figures, 6 Tables. Published in Universe (Open Access: https://www.mdpi.com/2218-1997/9/7/317)!
Estimating Average Treatment Effects with a Double-Index Propensity Score
Creators: name: Cheng, David
name: Chakrabortty, Abhishek
name: Ananthakrishnan, Ashwin N.
name: Cai, Tianxi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We consider estimating average treatment effects (ATE) of a binary treatment in observational data when data-driven variable selection is needed to select relevant covariates from a moderately large number of available covariates $\mathbf{X}$. To leverage covariates among $\mathbf{X}$ predictive of the outcome for efficiency gain while using regularization to fit a parametric propensity score (PS) model, we consider a dimension reduction of $\mathbf{X}$ based on fitting both working PS and outcome models using adaptive LASSO. A novel PS estimator, the Double-index Propensity Score (DiPS), is proposed, in which the treatment status is smoothed over the linear predictors for $\mathbf{X}$ from both the initial working models. The ATE is estimated by using the DiPS in a normalized inverse probability weighting (IPW) estimator, which is found to maintain double-robustness and also local semiparametric efficiency with a fixed number of covariates $p$. Under misspecification of working models, the smoothing step leads to gains in efficiency and robustness over traditional doubly-robust estimators. These results are extended to the case where $p$ diverges with sample size and working models are sparse. Simulations show the benefits of the approach in finite samples. We illustrate the method by estimating the ATE of statins on colorectal cancer risk in an electronic medical record (EMR) study and the effect of smoking on C-reactive protein (CRP) in the Framingham Offspring Study.
description: 48 pages, 1 figure; Finalized revised version
THEORETICAL BASIS OF FORMING VOCAL AND CHORAL PERFORMANCE SKILLS OF SECONDARY SCHOOL STUDENTS IN THE PROCESS OF STUDYING THE WORKS OF UZBEKISTAN COMPOSERS
Creators: name: Tursunova, Khusnora
name: Trigulova, A.Kh.
Publisher: name: Zenodo
Year: 2025

description: The article examines the theoretical foundations for developing vocal-choral performance skills among general education school students through the study of works by Uzbek composers.
The GLASS-JWST Early Release Science Program. IV. Data release of 263 spectra from 245 unique sources
Creators: name: Mascia, S.
name: Roberts-Borsani, G.
name: Treu, T.
name: Pentericci, L.
name: Chen, W.
name: Calabrò, A.
name: Merlin, E.
name: Paris, D.
name: Santini, P.
name: Brammer, G.
name: Henry, A.
name: Kelly, P. L.
name: Mason, C.
name: Morishita, T.
name: Nanayakkara, T.
name: Roy, N.
name: Wang, X.
name: Williams, H.
name: Boyett, K.
name: Bradač, M.
name: Castellano, M.
name: Glazebrook, K.
name: Jones, T.
name: Napolitano, L.
name: Vulcani, B.
name: Watson, P. J.
name: Yang, L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We release fully reduced spectra obtained with NIRSpec onboard JWST as part of the GLASS-JWST Early Release Science Program and a follow-up Director's Discretionary Time program 2756. From these 263 spectra of 245 unique sources, acquired with low ($R =30-300$) and high dispersion ($R\sim2700$) gratings, we derive redshifts for 200 unique sources in the redshift range $z=0-10$. We describe the sample selection and characterize its high completeness as a function of redshift and apparent magnitude. Comparison with independent estimates based on different methods and instruments shows that the redshifts are accurate, with 80\% differing less than 0.005. We stack the GLASS-JWST spectra to produce the first high-resolution ($R \sim 2700$) JWST spectral template extending in the rest frame wavelength from 2000~Å to 20, 000~Å. Catalogs, reduced spectra, and template are made publicly available to the community.
description: Accepted for publication in A&A
title: Does Impulsivity Moderate the Association between Alcohol-Related Expectancies for Sex and Sexual Aggression Perpetration?
Creators: name: Franklin-Kidd, MonicaMonet
Publisher: name: Georgia State University
Year: 2023

description:
Sexual violence is a global public health epidemic that affects women across the world. Sexual violence is defined as an act that involves nonconsensual sexual contact or behaviors, both physical and non-physical. In the United States, a woman is sexually assaulted every two minutes, making this a health crisis that must be addressed. Research studies focused on risk factors for perpetration, have found that both personal and environmental factors are associated with the perpetration of sexual aggression. Alcohol is an established risk factor for sexual perpetration. One facet of impulsivity, negative urgency, has also been linked to sexual aggression. While impulsivity and alcohol both have strong relationships with sexual aggression, the literature fails to examine a potential relationship between these two variables and sexual aggression. This present study aims to examine how the association between sexual aggression and alcohol-related sex expectancies, or common beliefs or expectations regarding the effects of alcohol on the sexual experience, are moderated by negative impulsivity. The study hypotheses were that alcohol-related sex expectancies will be positively associated with sex aggression. Further hypotheses were that alcohol-related sex expectancies would be associated with sexual aggression among men who reported higher, compared to lower, levels of negative urgency. Results indicated that negative urgency did not moderate the association between alcohol-related expectancies for sex and sexual aggression. A pos hoc analysis indicated that an interaction between sensation seeking and alcohol-related sex expectancies for women: sex drive predicted sexual aggression perpetration, whereas high levels of expectancies are positively associated with low levels of sensation seeking. Future research is needed to examine other potential moderators in the relationship between alcohol-related expectancies for sex and sexual aggression. Researchers should also consider examining sexual sensation seeking as a predictor for sexual aggression perpetration, but not as a facet of impulsivity.
Recurrence relations for the ${\cal W}_3$ conformal blocks and ${\cal N}=2$ SYM partition functions
Creators: name: Poghossian, Rubik
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recursion relations for the sphere $4$-point and torus $1$-point ${\cal W}_3$ conformal blocks, generalizing Alexei Zamolodchikov's famous relation for the Virasoro conformal blocks are proposed. One of these relations is valid for any 4-point conformal block with two arbitrary and two special primaries with charge parameters proportional to the highest weight of the fundamental irrep of $SU(3)$. The other relation is designed for the torus conformal block with a special (in above mentioned sense) primary field insertion. AGT relation maps the sphere conformal block and the torus block to the instanton partition functions of the ${\cal N}=2$ $SU(3)$ SYM theory with 6 fundamental or an adjoint hypermultiplets respectively. AGT duality played a central role in establishing these recurrence relations, whose gauge theory counterparts are novel relations for the $SU(3)$ partition functions with $N_f=6$ fundamental or an adjoint hypermultiplets. By decoupling some (or all) hypermultiplets, recurrence relations for the asymptotically free theories with $0\le N_f<6$ are found.
description: 17 pages, 2 figures; minor corrections, published version
RUI: A Web-based Road Updates Information System using Google Maps API
Creators: name: Grepon, Benzar Glen S.
name: Margallo, JC P.
name: Maserin, Jonathan B.
name: Dompol, Rio Al-Di A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Knowing the current situation on every road in an area is still difficult to anticipate. Commuters, riders, and drivers are still dependent on road situations from a local news agency to be well informed and be updated on possible road updates such as vehicular accidents, government road and bridge projects/construction, and other related road obstructions. To give solutions regarding road updates, a web-based roads update information system has been developed that uses Google Maps API allowing people to view and be notified of the real-time updates of the road situation of a specific area. This paper discusses the main system functionalities, including sub-systems and modules of the system, the research approach and methodology, which is the Agile Model, and its impact on disseminating road information and its status. The project has been evaluated using ISO 25010. Based on the evaluation result, the project has been rated 4.21, signifying an excellent performance based on qualitative description through a Likert scale descriptive interpretation. The project has been running and hosted on the world wide web and is expected to expand its coverage area from its origin country to the rest of the world. Based on the initial findings of the study, the respondents agreed that the developed web system was functional and a massive help to commuters, riders, and people who travel a lot. The system's overall effectiveness and performance were excellent based on the criteria set by ISO/IEC 25010. It is recommended for future development to expand the coverage of the road updates, if possible, including the entire Philippine archipelago for long-drive commuters and drivers to be more updated in terms of road updates. Also, include the use of mobile applications for more user-friendly design and interactions.
description: 18 pages
Channel Noise Effects on Neural Synchronization
Creators: name: Maisel, Brenton
name: Lindenberg, Katja
Publisher: name: arXiv
Year: 2017
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences
subject: 92B20

description: Synchronization in neural networks is strongly tied to the implementation of cognitive processes, but abnormal neuronal synchronization has been linked to a number of brain disorders such as epilepsy and schizophrenia. Here we examine the effects of channel noise on the synchronization of small Hodgkin-Huxley neuronal networks. The principal feature of a Hodgkin-Huxley neuron is the existence of protein channels that transition between open and closed states with voltage dependent rate constants. The Hodgkin-Huxley model assumes infinitely many channels, so fluctuations in the number of open channels do not affect the voltage. However, real neurons have finitely many channels which lead to fluctuations in the membrane voltage and modify the timing of the spikes, which may in turn lead to large changes in the degree of synchronization. We demonstrate that under mild conditions, neurons in the network reach a steady state synchronization level that depends only on the number of neurons in the network. The channel noise only affects the time it takes to reach the steady state synchronization level.
description: 7 Figures
A Finite Presentation of CNOT-Dihedral Operators
Creators: name: Amy, Matthew
name: Chen, Jianxin
name: Ross, Neil J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We give a finite presentation by generators and relations of the unitary operators expressible over the {CNOT, T, X} gate set, also known as CNOT-dihedral operators. To this end, we introduce a notion of normal form for CNOT-dihedral circuits and prove that every CNOT-dihedral operator admits a unique normal form. Moreover, we show that in the presence of certain structural rules only finitely many circuit identities are required to reduce an arbitrary CNOT-dihedral circuit to its normal form. By appropriately restricting our relations, we obtain a finite presentation of unitary operators expressible over the {CNOT, T} gate set as a corollary.
description: In Proceedings QPL 2017, arXiv:1802.09737
Investigating Possible Correlations between Gamma-Ray and Optical Lightcurves for TeV-Detected Northern Blazars over 8 Years of Observations
Creators: name: Acharyya, Atreya
name: Sadun, Alberto C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Blazars are a subclass of active galactic nuclei (AGN) having relativistic jets aligned within a few degrees of our line-of-sight and form the majority of the AGN detected in the TeV regime. The Fermi-Large Area Telescope (LAT) is a pair-conversion telescope, sensitive to photons having energies between 20 MeV and 2 TeV, and is capable of scanning the entire gamma-ray sky every three hours. Despite the remarkable success of the Fermi mission, many questions still remain unanswered, such as the site of gamma-ray production and the emission mechanisms involved. The Asteroid Terrestrial-impact Last Alert System (ATLAS) is a high cadence all sky survey system optimized to be efficient for finding potentially dangerous asteroids, as well as in tracking and searching for highly variable and transient sources, such as AGN. In this study, we investigate possible correlations between the Fermi-LAT observations in the 100 MeV-300 GeV energy band and the ATLAS optical data in the R-band, centered at 679 nm, for a sample of 18 TeV-detected northern blazars over 8 years of observations between 2015 and 2022. Under the assumption that the optical and gamma-ray flares are produced by the same outburst propagating down the jet, the strong correlations found for some sources suggest a single-zone leptonic model of emission.
description: 11 pages, 5 figures, Accepted in Galaxies. arXiv admin note: text overlap with arXiv:2305.02860
Aggressive Quadrotor Flight through Narrow Gaps with Onboard Sensing and Computing using Active Vision
Creators: name: Falanga, Davide
name: Mueggler, Elias
name: Faessler, Matthias
name: Scaramuzza, Davide
Publisher: name: arXiv
Year: 2016
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We address one of the main challenges towards autonomous quadrotor flight in complex environments, which is flight through narrow gaps. While previous works relied on off-board localization systems or on accurate prior knowledge of the gap position and orientation, we rely solely on onboard sensing and computing and estimate the full state by fusing gap detection from a single onboard camera with an IMU. This problem is challenging for two reasons: (i) the quadrotor pose uncertainty with respect to the gap increases quadratically with the distance from the gap; (ii) the quadrotor has to actively control its orientation towards the gap to enable state estimation (i.e., active vision). We solve this problem by generating a trajectory that considers geometric, dynamic, and perception constraints: during the approach maneuver, the quadrotor always faces the gap to allow state estimation, while respecting the vehicle dynamics; during the traverse through the gap, the distance of the quadrotor to the edges of the gap is maximized. Furthermore, we replan the trajectory during its execution to cope with the varying uncertainty of the state estimate. We successfully evaluate and demonstrate the proposed approach in many real experiments. To the best of our knowledge, this is the first work that addresses and achieves autonomous, aggressive flight through narrow gaps using only onboard sensing and computing and without prior knowledge of the pose of the gap.
Assessment of provisions for vibration control of steel girder highway bridges
Creators: name: Hanbay, Serap
Publisher: name: No Publisher Supplied
Year: 2023

description: Bridge Design Specifications (BDS) provide various criteria to control deflection and vibration. Currently, the AASHTO LRFD (2022) BDS provides depth-to-span (D/L) ratios, optional limits on the maximum live load deflection, and dynamic load allowance. It was presumed that deflection criteria are intended to indirectly control bridge vibrations. However, studies have shown that deflection criteria are not enough to control vibrations that are perceptible by humans. Since humans are more sensitive to acceleration than deflection, velocity, or the rate of change of acceleration, there is a need to assess the provisions for vibration control of steel girder highway bridges. This dissertation offers an in-depth study on vibration control in steel girder highway bridges by evaluating an array of bridges using a 3-D dynamic model incorporating the dynamic interaction between the bridge, road roughness, and vehicle. For better control of bridge vibration, the effect of various parameters, such as depth-to-span ratio and slab thickness, on acceleration, velocity, deflection, impact factor, and frequency, were addressed. It was revealed that increasing slab thickness is more efficient than increasing D/L to reduce acceleration, and it is vice versa for velocity and deflection.Additionally, the current AASHTO LRFD (2022) BDS mandates the use of an impact factor of 15% for the fatigue design. This value is based on historical provisions with limited validation including a lack of research in the literature. Therefore, this research included the evaluation of its applicability and validity for fatigue design. For this purpose, an array of bridges was selected to study their dynamic behavior based on analytical and experimental results. It was revealed that the 15% is acceptable since it well correlated with the average dynamic amplification for various types of steel bridges.Finally, it has been known that the load effects due to Specialized Hauling Vehicles (SHVs) are higher than the one caused by HS20-44 and legal loads. However, the dynamic impact factor of SHVs and Emergency Vehicles (EVs) is not well known. Currently, for EV3, the impact factor specified in the current AASHTO Manual for Bridge Evaluation (MBE) for normal legal loads is adopted due to the insufficient data at 10%, 20% and 33% for smooth surface, minor surface irregularities, and major surface irregularities, respectively. The impact factor for SHVs and EVs for load rating obtained in this study are consistent with those specified in the MBE, while that for EV3 was found to be lower. The overall results support updating the provisions for checking vibrations as well as dynamic impact due to various types of vehicles on steel bridges.
Non-standard Higgs couplings in single Higgs boson production at the LHC and future linear collider
Creators: name: Selcin, G. Akkaya
name: Sahin, I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the potential of single Higgs boson production at the LHC and at egamma mode of future linear electron-positron collider to probe non-standard HZgamma and Hgammagamma couplings. We consider the semi-elastic production process pp-> p gamma p-> pHqX at the LHC where q represents the quarks and X represents the remnants of one of the initial protons. We also study the single Higgs production through gamma e-> He in the egamma collision at the future linear collider. We perform a model-independent analysis and obtain the sensitivity bounds on the non-standard Higgs couplings for both colliders.
description: 25 pages, 14 figures, 2 tables
Strong Quantum Solutions in Conflicting Interest Bayesian Games
Creators: name: Rai, Ashutosh
name: Paul, Goutam
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum entanglement has been recently demonstrated as a useful resource in conflicting interest games of incomplete information between two players, Alice and Bob [Pappa et al., Phys. Rev. Lett. 114, 020401 (2015)]. General setting for such games is that of correlated strategies where the correlation between competing players is established through a trusted common adviser; however, players need not reveal their input to the adviser. So far, quantum advantage in such games has been revealed in a restricted sense. Given a quantum correlated equilibrium strategy, one of the players can still receive a higher than quantum average payoff with some classically-correlated equilibrium strategy. In this work, by considering a class of asymmetric Bayesian games, we show the existence of games with quantum correlated equilibrium where average payoff of both the players exceed respective individual maximum for each player over all classically-correlated equilibriums.
On relation between renormalized frequency and heat capacity for particles in an anharmonic potential
Creators: name: Liu, Y. T.
name: Zhao, Y. H.
name: Zhong, Y.
name: Shen, J. M.
name: Zhang, J. H.
name: Liu, Q. H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: For free particles in a simple harmonic potential plus a weak anharmonicity, characterized by a set of anharmonic parameters, Newtonian mechanics asserts that there is a renormalization of the natural frequency of the periodic motion; and statistical mechanics claims that the anharmonicity causes a correction to the heat capacity of an ideal gas in the anharmonic potential. The orbital motion and thermal motion depend on the same anharmonic parameters, but in different combinations. These two manners of combinations are fundamentally different, demonstrating that statistical law can not emerge from the many-body limit of deterministic law for one-body.
description: 9 pages, no figure. arXiv admin note: text overlap with arXiv:2210.00906
Suppression of the inclination instability in the trans-Neptunian Solar system
Creators: name: Das, Arnav
name: Batygin, Konstantin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The trans-Neptunian scattered disk exhibits unexpected dynamical structure, ranging from an extended dispersion of perihelion distance to a clustered distribution in orbital angles. Self-gravitational modulation of the scattered disk has been suggested in the literature as an alternative mechanism to Planet 9 for sculpting the orbital architecture of the trans-Neptunian region. The numerics of this hypothesis have hitherto been limited to $N < O(10^3)$ super-particle simulations that omit direct gravitational perturbations from the giant planets and instead model them as an orbit-averaged (quadrupolar) potential, through an enhanced $J_2$ moment of the central body. For sufficiently massive disks, such simulations reveal the onset of collective dynamical behaviour $\unicode{x2014}$ termed the $\unicode{x2018}$inclination instability$\unicode{x2019}$ $\unicode{x2014}$ wherein orbital circularisation occurs at the expense of coherent excitation of the inclination. Here, we report $N = O(10^4)$ GPU-accelerated simulations of a self-gravitating scattered disk (across a range of disk masses spanning 5 to 40 Earth masses) that self-consistently account for intra-particle interactions as well as Neptune's perturbations. Our numerical experiments show that even under the most favourable conditions, the inclination instability never ensues. Instead, due to scattering, the disk depletes. While our calculations show that a transient lopsided structure can emerge within the first few hundreds of Myr, the terminal outcomes of these calculations systematically reveal a scattered disk that is free of any orbital clustering. We conclude thus that the inclination instability mechanism is an inadequate explanation of the observed architecture of the solar system.
Ultrathin natural biotite crystals as a dielectric layer for van der Waals heterostructure applications
Creators: name: de Oliveira, Raphaela
name: Yoshida, Ana Beatriz
name: Rabahi, Cesar
name: Freitas, Raul O.
name: de Matos, Christiano J. S.
name: Gobato, Yara Galvão
name: Barcelos, Ingrid D.
name: Cadore, Alisson R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Biotite, an iron-rich mineral belonging to the trioctahedral mica group, is a naturally abundant layered material (LM) exhibiting attractive electronic properties for application in nanodevices. Biotite stands out as a non-degradable LM under ambient conditions, featuring high-quality basal cleavage, a significant advantage for van der Waals heterostructure (vdWH) applications. In this work, we present the micro-mechanical exfoliation of biotite down to monolayers (1Ls), yielding ultrathin flakes with large areas and atomically flat surfaces. To identify and characterize the mineral, we conducted a multi-elemental analysis of biotite using energy-dispersive spectroscopy mapping. Additionally, synchrotron infrared nano-spectroscopy was employed to probe its vibrational signature in few-layer form, with sensitivity to the layer number. We have also observed good morphological and structural stability in time (up to 12 months) and no important changes in their physical properties after thermal annealing processes in ultrathin biotite flakes. Conductive atomic force microscopy evaluated its electrical capacity, revealing an electrical breakdown strength of approximately 1 V/nm. Finally, we explore the use of biotite as a substrate and encapsulating LM in vdWH applications. We have performed optical and magneto-optical measurements at low temperatures. We find that ultrathin biotite flakes work as a good substrate for 1L-MoSe2, comparable to hexagonal boron nitride flakes, but it induces a small change of the 1L-MoSe2 g-factor values, most likely due to natural impurities on its crystal structure. Furthermore, our results show that biotite flakes are useful systems to protect sensitive LMs such as black phosphorus from degradation for up to 60 days in ambient air. Our study introduces biotite as a promising, cost-effective LM for the advancement of future ultrathin nanotechnologies.
description: 20 pages, 4 figures
title: Predictive Validity of Utilizing Subscales of the Strengths and Difficulties Questionnaire for Early Warning System Indicators in a Population of Middle School Students
Creators: name: Awan, Sofia
Publisher: name: Georgia State University
Year: 2025

description:
INTRODUCTION: Early warning systems (EWS) have been promoted within education as a way of identifying students at risk of dropout. There is potential for behavior health screeners like the Strengths and Difficulties Questionnaire (SDQ) to aid in the prediction and prevention of outcomes flagged through early warning systems. This study aims to understand the associations between gender, race, subscales of the SDQ, and EWS indicators.



METHODS: This cross-sectional study used data from middle school students who had completed the SDQ during the Fall 2021 semester. The SDQ was administered at seven schools in a southern school district where students were asked to complete the screener and self-report their gender and race. The SDQ consists of 25 questions, which were used to define four, previously theorized and tested, subscales. EWS indicators were reported by each school.



RESULTS: Of the 2,819 students who completed the SDQ, 89% were Black and 51% were male. A subset of these students was used to evaluate the mediating effect of SDQ subscales on the relationships between gender and race with EWS indicators of course performance scores. In this sample of 1,784 students, White students, compared to Black students, were more likely to have higher academic scores.



DISCUSSION: There are associations between gender and race with EWS indicators, which include direct and indirect effects through the mediation of SDQ subscales. This suggests that there is potential value in utilizing screeners like the SDQ in the prevention and early intervention of EWS-flagged concerns.
СИСТЕМАТИЗАЦИЯ ЯЗЫКОВЫХ ЕДИНИЦ ПРЕДМЕТНОЙ ОБЛАСТИ «ТЕАТР» В ПОЭЗИИ М. КУЗМИНА
Creators: name: Gik, Anna
Publisher: name: Zenodo
Year: 2024

description: This work is devoted to the systematization of linguistic units related to the subject area “theater” in the poetic work of M. Kuzmin. In the course of the study, a classification and description of various linguistic units associated with the theatrical environment is carried out. The specifics of the language of M. Kuzmin’s poetic works, its features and main characteristics in the context of theatrical themes are also studied. The main ways of introducing references to theatrical works into poetic text are identified. Kuzmin enters into a creative dialogue with W. Shakespeare and asserts that “After all, this world is ballet, ballet!” The purpose of the work is to organize and structure the linguistic units of the specified subject area for a more complete and accurate understanding of their meaning and use in poetic works.
The QCD topological susceptibility at high temperatures via staggered fermions spectral projectors
Creators: name: Athenodorou, Andreas
name: Bonanno, Claudio
name: Bonati, Claudio
name: Clemente, Giuseppe
name: D'Angelo, Francesco
name: D'Elia, Massimo
name: Maio, Lorenzo
name: Martinelli, Guido
name: Sanfilippo, Francesco
name: Todaro, Antonino
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2022
Subjects: susceptibility, topological
temperature, high
lattice field theory, action
axion, mass
fermion, staggered
operator, Dirac
spectral
lattice
quantum chromodynamics

description: The QCD topological observables are essential inputs to obtain theoretical predictions about axion phenomenology, which are of utmost importance for current and future experimental searches for this particle. Among them, we focus on the topological susceptibility, related to the axion mass. We present lattice results for the topological susceptibility in QCD at high temperatures obtained by discretizing this observable via spectral projectors on eigenmodes of the staggered Dirac operator, and we compare them with those obtained with the standard gluonic definition. The adoption of the spectral discretization is motivated by the large lattice artifacts affecting the standard gluonic susceptibility, related to the choice of non-chiral fermions in the lattice action.
Purity of reciprocity sheaves
Creators: name: Saito, Shuji
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 19E15, 14F42, 19D45, 19F15

description: The purpose of this paper is to prove a conjecture on reciprocity sheaves by Kahn-Saito-Yamazaki. This is accomplished by extending Voevodsky's fundamental results on homotopy invariant (pre)sheaves with transfers to its generalizations, reciprocity sheaves and cube-invariant sheaves in the context of theory of modulus (pre)sheave with transfers. The main results of this paper is expected to play a crucial role in deducing the main properties of the triangulated category of motives with modulus, which is a new triangulated category enlarging Voevodsky's triangulated category of motives to encompass non homotopy invariant motivic phenomena.
description: A mistake in theory of modulus sheave with transfers (pointed by Ayoub) has been repaired
Droplet formation simulation using mixed finite elements
Creators: name: Nathawani, Darsh
name: Knepley, Matthew
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Droplet formation happens in finite time due to the surface tension force. The linear stability analysis is useful to estimate droplet size but fails to approximate droplet shape. This is due to a highly non-linear flow description near the point where the first pinch-off happens. A one-dimensional axisymmetric mathematical model was first developed by Eggers and Dupont using asymptotic analysis. This asymptotic approach to the Navier-Stokes equations leads to a universal scaling explaining the self-similar nature of the solution. Numerical models for the one-dimensional model were developed using the finite difference and finite element method. The focus of this study is to provide a robust computational model for one-dimensional axisymmetric droplet formation using the Portable, Extensible Toolkit for Scientific Computation (PETSc). The code is verified using the Method of Manufactured Solutions (MMS) and validated using previous experimental studies done by Zhang and Basaran. The present model is used for simulating pendant drops of water, glycerol, and paraffin wax, with an aspiration of extending the application to simulate more complex pinch-off phenomena.
description: 11 pages, 6 figures, published in Physics of Fluids
Pseudo-Finsler spaces modeled on a pseudo-Minkowski space
Creators: name: Gómez-Lobo, A. García-Parrado
name: Minguzzi, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We adopt a vierbein formalism to study pseudo-Finsler spaces modeled on a pseudo-Minkowski space. We show that it is possible to obtain closed expressions for most of the geometric objects of the theory, including Berwald's curvature, Landsberg's tensor, Douglas' curvature, non-linear connection and Ricci scalar. These expressions are particularly convenient in computations since they factor the dependence on the base and the fiber. As an illustration, we study Lorentz-Finsler spaces modeled on the Bogoslovsky Lorentz-Minkowski space, and give sufficient conditions which guarantee the Berwald property. We then specialize to a recently proposed Finslerian pp-wave metric. Finally, the paper points out that non-trivial Berwald spaces have necessarily indicatrices which admit some non-trivial linear group of symmetries.
description: 15 pages, no figures. Accepted by "Reports on Mathematical Physics"
Measurements of $Z\gamma+$jets differential cross sections in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2022
Subjects: p p, scattering
higher-order, 1
jet, hadronic
boson, decay
numerical calculations, Monte Carlo
ATLAS
differential cross section
TeV
collinear
quantum chromodynamics
initial state
photon
quark
hard scattering
CERN LHC Coll

description: Differential cross-section measurements of $Z\gamma$ production in association with hadronic jets are presented, using the full 139 fb$^{-1}$ dataset of $\sqrt{s}=13$ TeV proton-proton collisions collected by the ATLAS detector during Run 2 of the LHC. Distributions are measured using events in which the $Z$ boson decays leptonically and the photon is usually radiated from an initial-state quark. Measurements are made in both one and two observables, including those sensitive to the hard scattering in the event and others which probe additional soft and collinear radiation. Different Standard Model predictions, from both parton-shower Monte Carlo simulation and fixed-order QCD calculations, are compared with the measurements. In general, good agreement is observed between data and predictions from MATRIX and MiNNLO$_\text{PS}$, as well as next-to-leading-order predictions from MadGraph5_aMC@NLO and Sherpa.