cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Flares and rotation of M dwarfs with habitable zones accessible to TESS planet detections
Creators: name: Stelzer, B.
name: Bogner, M.
name: Magaudda, E.
name: Raetz, St.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We characterize the magnetic activity of M dwarfs to provide the planet community with information on the energy input from the star; in particular, in addition to the frequency of optical flares directly observed with TESS, we aim at estimating the corresponding X-ray flare frequencies, making use of the small pool of known events observed simultaneously in both wavebands. We identified 112 M dwarfs with a TESS magnitude <= 11.5 for which TESS can probe the full habitable zone for transits. These 112 stars have 1276 two-minute cadence TESS light curves from the primary mission, which we searched for rotational modulation and flares. We study the link between rotation and flares and between flare properties, for example the flare amplitude-duration relation and cumulative flare energy frequency distributions (FFDs). Assuming that each optical flare is associated with a flare in the X-ray band, and making use of published simultaneous Kepler/K2 and XMM-Newton flare studies, we estimate the X-ray energy released by our detected TESS flare events. Our calibration also involves the relation between flare energies in the TESS and K2 bands. We detected more than 2500 optical flare events on a fraction of about 32% of our targets and found reliable rotation periods only for 12 stars, which is a fraction of about 11%. For these 12 targets, we present cumulative FFDs and FFD power law fits. We construct FFDs in the X-ray band by calibrating optical flare energies to the X-rays. In the absence of directly observed X-ray FFDs for main-sequence stars, our predictions can serve for estimates of the high-energy input to the planet of a typical fast-rotating early- or mid-M dwarf.
description: 23 pages; Accepted for publication in A&A
First observation of rotational structures in Re 168
Creators: name: Miller, S.L.
name: Pedicini, E.E.
name: Mukhopadhyay, S.
name: Hota, S.S.
name: Matta, J.
name: Bertone, P.F.
name: Ayangeakaa, A.D.
name: Chiara, C.J.
name: Carpenter, M.P.
name: Janssens, R.V.F.
name: Vanhoy, J.R.
name: Ma, W.C.
name: Chowdhury, P.
name: Garg, U.
name: Riedinger, L.L.
name: Zhu, S.
name: McCutchan, E.A.
name: Lauritsen, T.
name: Kondev, F.G.
name: Hartley, D.J.
name: Gürdal, G.
name: Wang, X.
name: Riley, M.A.
Publisher: name: American Physical Society
Year: 2016

description: The first rotational sequences have been assigned to the odd-odd nucleus Re168. Coincidence relationships of these structures with rhenium x rays confirm the isotopic assignment, while arguments based on the γ-ray multiplicity (K-fold) distributions observed with the new bands lead to the mass assignment. Configurations for the two bands were determined through analysis of the rotational alignments of the structures and a comparison of the experimental B(M1)/B(E2) ratios with theory. Tentative spin assignments are proposed for the πh11/2νi13/2 band, based on energy level systematics for other known sequences in neighboring odd-odd rhenium nuclei, as well as on systematics seen for the signature inversion feature that is well known in this region. The spin assignment for the πh11/2ν(h9/2/f7/2) structure provides additional validation of the proposed spins and configurations for isomers in the Au176 → Ir172→Re168 α-decay chain.
Data-Driven Approaches for Track Monitoring Using In-Service Trains
Creators: name: Lederman, George
Publisher: name: Figshare
Year: 2018
Subjects: subject: 90799 Environmental Engineering not elsewhere classified
subject: FOS: Environmental engineering
subject: 90599 Civil Engineering not elsewhere classified
subject: FOS: Civil engineering

description: This thesis explores data-driven approaches for monitoring rail-infrastructure from the dynamic response of a train in revenue-service. Presently, track inspection is performed either visually or with dedicated track geometry cars. Collecting and analyzing vibration data from in-service trains can offer more economical and more reliable monitoring. The high frequency with which in-service trains travel each section of track means that faults can be detected sooner than with dedicated inspection vehicles, and the large number of passes over each section of track makes a data-driven approach statistically feasible. Developing such a data-driven approach requires modeling the state of the tracks from the collected data, then detecting track anomalies as the model changes over time. Building consistent models from different passes is challenging due to the variation in the train’s speed from pass to pass, the uncertainty in the train’s position, and changes in the properties of the train itself. We study two ways of modeling the state of the tracks to address these challenges: explicit models where the track profile itself is estimated, and implicit models, where features extracted from the collected data are used to imply information about the tracks. In addition, we explore change detection methods appropriate for both modeling approaches; these would allow for monitoring to occur without human supervision. Finally, for network-level monitoring to be practical, we study how data from multiple sensors and multiple trains could be fused together. Data fusion could enable more accurate representations of the state of the tracks, and more rapid detection of track changes after they occur. The track modeling, change detection and data fusion approaches presented in this thesis are validated with simulations and with data collected from two instrumented trains. This collected data includes more than 500 passes through a 40km rail network over a three year period. We demonstrate that the proposed sensing, signal processing, and data analysis can detect numerous types of track anomalies and could facilitate safer, more efficient rail-infrastructure in the future.
Additional file 2 of Indigenous medicinal plants used in folk medicine for malaria treatment in Kwara State, Nigeria: an ethnobotanical study
Creators: name: Evbuomwan, Ikponmwosa Owen
name: Stephen Adeyemi, Oluyomi
name: Oluba, Olarewaju Michael
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 2: Table S1. Sociodemographic details of informants (n = 35).
Five Common Misconceptions About Privacy-Preserving Internet of Things
Creators: name: Alsheikh, Mohammad Abu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Billions of devices in the Internet of Things (IoT) collect sensitive data about people, creating data privacy risks and breach vulnerabilities. Accordingly, data privacy preservation is vital for sustaining the proliferation of IoT services. In particular, privacy-preserving IoT connects devices embedded with sensors and maintains the data privacy of people. However, common misconceptions exist among IoT researchers, service providers, and users about privacy-preserving IoT. This article refutes five common misconceptions about privacy-preserving IoT concerning data sensing and innovation, regulations, and privacy safeguards. For example, IoT users have a common misconception that no data collection is permitted in data privacy regulations. On the other hand, IoT service providers often think data privacy impedes IoT sensing and innovation. Addressing these misconceptions is essential for making progress in privacy-preserving IoT. This article refutes such common misconceptions using real-world experiments and online survey research. First, the experiments indicate that data privacy should not be perceived as an impediment in IoT but as an opportunity to increase customer retention and trust. Second, privacy-preserving IoT is not exclusively a regulatory problem but also a functional necessity that must be incorporated in the early stages of any IoT design. Third, people do not trust services that lack sufficient privacy measures. Fourth, conventional data security principles do not guarantee data privacy protection, and data privacy can be exposed even if data is securely stored. Fifth, IoT decentralization does not attain absolute privacy preservation.
description: 7 pages, 5 figures, accepted in IEEE Communications Magazine
Boundary Conditions and the Generalized Metric Formulation of the Double Sigma Model
Creators: name: Ma, Chen-Te
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Double sigma model with the strong constraints is equivalent to the normal sigma model by imposing the self-duality relation. The gauge symmetries are the diffeomorphism and one-form gauge transformation with the strong constraints. We modify the Dirichlet and Neumann boundary conditions with the fully $O(D, D)$ description from the doubled gauge fields. We perform the one-loop $β$ function for the constant background fields to find low energy effective theory without using the strong constraints. The low energy theory can also be $O(D,D)$ invariant as the double sigma model. We use the other one way to construct different boundary conditions from the projectors. Finally, we combine the antisymmetric background field with the field strength to redefine a different $O(D, D)$ generalized metric. We use this generalized metric to construct a consistent double sigma model with the classical and quantum equivalence. We show the one-loop $β$ function for the constant background fields and obtain the normal sigma model after integrating out the dual coordinates.
description: 32 pages, minor changes, references added
Investigating the link between inner gravitational potential and star-formation quenching in CALIFA galaxies
Creators: name: Kalinova, V.
name: Colombo, D.
name: Sánchez, S. F.
name: Rosolowsky, E.
name: Kodaira, K.
name: García-Benito, R.
name: Meidt, S. E.
name: Davis, T. A.
name: Romeo, A. B.
name: Yu, S. -Y.
name: Delgado, R. González
name: Lacerda, E. A. D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: It has been suggested that the gravitational potential can have a significant role in suppressing the star formation in the nearby galaxies. To establish observational constrains on this scenario, we investigate the connection between the dynamics, through the circular velocity curves (CVCs) as a proxy of the inner gravitational potential, and star formation quenching in 215 non-active galaxies across Hubble sequence from the Calar Alto Legacy Integral Field Area (CALIFA) survey. Our results show that galaxies with similar CVCs tend to have a certain star-formation quenching pattern. To explore these findings in more details, we construct kpc-resolved relations of the equivalent width of the H$α$ ($W_{{\rm H}α}$) versus the amplitude ($V_c$) and shape ($β= d\ln V_c/ d\ln R$) of the circular velocity at given radius. We find that the $W_{{\rm H}α}-V_c$ is a declining relationship, where the retired regions of the galaxies (the ones with $W_{{\rm H}α}$ values below 3 Å) tend to have higher $V_c$. Differently, $W_{{\rm H}α}-β$ is a bi-modal relationship, characterised by two peaks: concentration of the star forming regions at a positive $β$ (rising CVC) and another one of the retired regions with a negative $β$ (declining CVC). Our results show that both the amplitude of the CVC, driven by the mass of the galaxies, and the shape of the CVC, reflecting the internal structure of the galaxies, play an important role in galaxy's quenching history.
description: 16 pages, 12 figures, Accepted for publication in A&A
Defect Analysis and Microstructural Effects on the Surface Exchange Properties of La0.7Sr0.3MnO3(LSM) Epitaxial Thin Films
Creators: name: Miaolei  Yan
Publisher: name: Figshare
Year: 2018
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: La0.7Sr0.3MnO3 (LSM) is a perovskite oxide material that possesses many interesting electromagnetic and electrochemical properties, making it desirable as magnetic tunnel junction (MTJ) and solid oxide fuel cell (SOFC) electrodes.
The Atmospheric Monitoring System of the JEM-EUSO Space Mission
Creators: name: Frias, M. D. Rodriguez
name: Toscano, S.
name: Bozzo, E.
name: del Peral, L.
name: Neronov, A.
name: Wada, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: An Atmospheric Monitoring System (AMS) is a mandatory and key device of a space-based mission which aims to detect Ultra-High Energy Cosmic Rays (UHECR) and Extremely-High Energy Cosmic Rays (EHECR) from Space. JEM-EUSO has a dedicated atmospheric monitoring system that plays a fundamental role in our understanding of the atmospheric conditions in the Field of View (FoV) of the telescope. Our AMS consists of a very challenging space infrared camera and a LIDAR device, that are being fully designed with space qualification to fulfil the scientific requirements of this space mission. The AMS will provide information of the cloud cover in the FoV of JEM-EUSO, as well as measurements of the cloud top altitudes with an accuracy of 500 m and the optical depth profile of the atmosphere transmittance in the direction of each air shower with an accuracy of 0.15 degree and a resolution of 500 m. This will ensure that the energy of the primary UHECR and the depth of maximum development of the EAS ( Extensive Air Shower) are measured with an accuracy better than 30\% primary energy and 120 $g/cm^2$ depth of maximum development for EAS occurring either in clear sky or with the EAS depth of maximum development above optically thick cloud layers. Moreover a very novel radiometric retrieval technique considering the LIDAR shots as calibration points, that seems to be the most promising retrieval algorithm is under development to infer the Cloud Top Height (CTH) of all kind of clouds, thick and thin clouds in the FoV of the JEM-EUSO space telescope.
Self-organization of topological defects for a triangular-lattice magnetic dots array subject to a perpendicular magnetic field
Creators: name: Khymyn, R.
name: Kireev, V.
name: Ivanov, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The regular array of magnetic particles (magnetic dots) of the form of a two-dimensional triangular lattice in the presence of external magnetic field demonstrates complicated magnetic structures. The magnetic symmetry of the ground state for such a system is lower than that for the underlying lattice. Long range dipole-dipole interaction leads to a specific antiferromagnetic order in small fields, whereas a set of linear topological defects appears with the growth of the magnetic field. Self-organization of such defects determines the magnetization process for a system within a wide range of external magnetic fields.
description: 10 pages, 4 figures. arXiv admin note: substantial text overlap with arXiv:1201.1747
Light-induced magnetization driven by interorbital charge motion in a spin-orbit assisted Mott insulator alpha-RuCl3
Creators: name: Amano, T.
name: Kawakami, Y.
name: Itoh, H.
name: Konno, K.
name: Hasegawa, Y.
name: Aoyama, T.
name: Imai, Y.
name: Ohgushi, K.
name: Takeuchi, Y.
name: Wakabayashi, Y.
name: Goto, K.
name: Nakamura, Y.
name: Kishida, H.
name: Yonemitsu, K.
name: Iwai, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In a honeycomb-lattice spin-orbit assisted Mott insulator α-RuCl3, an ultrafast magnetization is induced by circularly polarized excitation below the Mott gap. Photo-carriers play an important role, which are generated by turning down the synergy of the on-site Coulomb interaction and the spin-orbit interaction realizing the insulator state. An ultrafast 6- fs measurement of photo-carrier dynamics and a quantum mechanical analysis clarify the mechanism, according to which the magnetization emerges from a coherent charge motion between different t2g orbitals (dyz-dxz-dxy) of Ru3+ ions. This ultrafast magnetization is weakened in the antiferromagnetic (AF) phase, which is opposite to the general tendency that the inverse Faraday effect is larger in AF compounds than in paramagnetic ones. This temperature dependence indicates that the interorbital charge motion is affected by pseudo-spin rotational symmetry breaking in the AF phase.
Additional file 1 of Identification of novel genetic risk factors of dilated cardiomyopathy: from canine to human
Creators: name: Niskanen, Julia E.
name: Ohlsson, Åsa
name: Ljungvall, Ingrid
name: Drögemüller, Michaela
name: Ernst, Robert F.
name: Dooijes, Dennis
name: van Deutekom, Hanneke W. M.
name: van Tintelen, J. Peter
name: Snijders Blok, Christian J. B.
name: van Vugt, Marion
name: van Setten, Jessica
name: Asselbergs, Folkert W.
name: Petrič, Aleksandra Domanjko
name: Salonen, Milla
name: Hundi, Sruthi
name: Hörtenhuber, Matthias
name: Kere, Juha
name: Pyle, W. Glen
name: Donner, Jonas
name: Postma, Alex V.
name: Leeb, Tosso
name: Andersson, Göran
name: Hytönen, Marjo K.
name: Häggström, Jens
name: Wiberg, Maria
name: Friederich, Jana
name: Eberhard, Jenny
name: Harakalova, Magdalena
name: van Steenbeek, Frank G.
name: Wess, Gerhard
name: Lohi, Hannes
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. Manhattan plots from GWAS analyses with different subcohort combinations of affected Dobermanns. Fig. S2. Multi-dimensional scaling (left) and quantile-quantile plots (right) from GWAS analyses with different subcohort combinations of affected Dobermanns. Fig. S3. Locus plots from an extended GWAS analysis with 235 cases from the “echo only”, “echo + arrhythmia” and “CHF” subcohorts and Utrecht cohort, and 143 controls from the “healthy” subcohort.
One-neutron transfer study of Xe 137 and systematics of 13/ 21+ and 13/ 22+ levels in N=83 nuclei
Creators: name: Reviol, W.
name: Ayangeakaa, A.D.
name: Zhu, S.
name: Gargano, A.
name: Kinnison, J.E.
name: Janssens, R.V.F.
name: David, H.M.
name: Sarantites, D.G.
name: Padilla-Rodal, E.
name: Galindo-Uribarri, A.
name: Lauritsen, T.
name: Bottoni, S.
name: Elson, J.M.
name: Itaco, N.
name: Carpenter, M.P.
name: Allmond, J.M.
Publisher: name: American Physical Society
Year: 2016

description: Excited states in Xe137 have been studied by using the near-barrier single-neutron transfer reactions C13(Xe136,C12γ)Xe137 and Be9(Xe136,Be8γ)Xe137 in inverse kinematics. Particle-γ and particle-γγ coincidence measurements have been performed with the Phoswich Wall and Digital Gammasphere detector arrays. Evidence is found for a 13/22+ level (E=3137keV) and for additional high-lying 3/2- and 5/2- states. The results are discussed in the framework of realistic shell-model calculations. These calculations are also extended to the 13/21+ and 13/22+ levels in the N=83 isotonic chain. They indicate that there is a need for a value of the neutron 0i13/2 single-particle energy (ESPE=2366keV) lower than the one proposed in the literature. It is also demonstrated that the population patterns of the j=±1/2 single-particle states in Xe137 are different for the two targets used in these measurements and the implications of this effect are addressed.
Dependable Cyber-Physical Systems
Creators: name: Junsung  Kim
Publisher: name: Figshare
Year: 2018
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: CPS (Cyber-Physical Systems) enable a new class of applications that perceive their surroundings using raw data from sensors, monitor the timing of dynamic processes, and control the physical environment. Since failures and misbehaviors in application domains such as cars, medical devices, nuclear power plants, etc., may cause significant damage to life and/or property, CPS need to be safe and dependable. A conventional way of improving dependability is to use redundant hardware to replicate the whole (sub)system. Although hardware replication has been widely deployed in conventional mission-critical systems, it is cost-prohibitive to many emerging CPS application domains. Hardware replication also leads to limited system flexibility. This dissertation studies the problem of making CPS affordably dependable and develops a system-level framework that manages critical CPS resources including processors, networks, and sensors. Our framework called SAFER (System-level Architecture for Failure Evasion in Real-time applications) incorporates configurable software mechanisms and policies to tolerate failures of critical CPS resources while meeting their timing constraints. It supports adaptive graceful degradation, the effective use of different sensor modalities, and the fault-tolerant schemes of hot standby, cold standby, and re-execution. SAFER reliably and efficiently allocates tasks and their backups to CPU and sensor resources while satisfying network traffic constraints. It also fuses and (re)configures sensor data used by tasks to recover from system failures. The SAFER framework aims to guarantee the timeliness of different types of tasks that fall into one of four categories: (1) tasks with periodic arrivals, (2) tasks with continually varying periods, (3) tasks with parallel threads, and (4) tasks with self-suspensions. We offer the schedulability analyses and runtime support for such tasks with and without resource failures. Finally, the functionality of the proposed system is evaluated on a self-driving car using SAFER. We conclude that the proposed framework analytically satisfies timing constraints and predictably operates systems with and without resource failures, hence making CPS dependable and timely.
GRB 200829A: External Shock Origin of the Very Early Prompt Emission?
Creators: name: Li, Jing
name: Lin, Da-Bin
name: Lu, Rui-Jing
name: Jiang, Lu-Yao
name: Liang, Wen-Qiang
name: Chen, Zhi-Lin
name: Li, Xiao-Yan
name: Wang, Xiang-Gao
name: Liang, En-Wei
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Long-duration GRB~200829A was detected by Fermi-GBM and Swift-BAT/XRT, and then rapidly observed by other ground-based telescopes. It has a weak $γ$-ray emission in the very early phase and followed by a bright spiky $γ$-ray emission pulse. The radiation spectrum of the very early emission is best fitted by a power-law function with index $\sim -1.7$. However, the bright spiky $γ$-ray pulse, especially the time around the peak, exhibits a distinct two-component radiation spectra, i.e., Band function combined with a blackbody radiation spectrum. We infer the photospheric properties and reveal a medium magnetization at photospheric position by adopting the initial size of the outflow as $r_0=10^9$~cm. It implies that Band component in this pulse may be formed during the dissipation of magnetic field. The power-law radiation spectra found in the very early prompt emission may imply the external-shock origination of this phase. Then, we perform Markov Chain Monte Carlo method fitting on the light-curves of this burst, where the jet corresponding to the $γ$-ray pulses at around $20$~s is used to refresh the external-shock. It is shown that the light-curves of very early phase and X-ray afterglow after $40$~s, involving the X-ray bump at around $100$~s, can be well modelled in the external-shock scenario. For the obtained initial outflow, we estimate the minimum magnetization factor of the jet based on the fact that the photospheric emission of this jet is missed in the very early phase.
description: Accepted for publication in Astrophysical Journal
Single-particle and collective excitations in Ni 62
Creators: name: Gade, A.
name: Carpenter, M.P.
name: Kondev, F.G.
name: Hoffman, C.R.
name: Rogers, A.M.
name: Nair, C.
name: Albers, M.
name: McCutchan, E.A.
name: Deacon, A.N.
name: Baugher, T.
name: DiGiovine, B.
name: Gellanki, J.
name: Bertone, P.F.
name: Chowdhury, P.
name: Lauritsen, T.
name: David, H.M.
name: Ayangeakaa, A.D.
name: Lister, C.J.
name: Alcorta, M.
name: Seweryniak, D.
name: Chiara, C.J.
name: Zhu, S.
name: Ragnarsson, I.
name: Janssens, R.V.F.
Publisher: name: American Physical Society
Year: 2016

description: Background: Level sequences of rotational character have been observed in several nuclei in the A=60 mass region. The importance of the deformation-driving πf7/2 and νg9/2 orbitals on the onset of nuclear deformation is stressed. Purpose: A measurement was performed in order to identify collective rotational structures in the relatively neutron-rich Ni62 isotope. Method: The Mg26(Ca48,2α4nγ)Ni62 complex reaction at beam energies between 275 and 320 MeV was utilized. Reaction products were identified in mass (A) and charge (Z) with the fragment mass analyzer (FMA) and γ rays were detected with the Gammasphere array. Results: Two collective bands, built upon states of single-particle character, were identified and sizable deformation was assigned to both sequences based on the measured transitional quadrupole moments, herewith quantifying the deformation at high spin. Conclusions: Based on cranked Nilsson-Strutinsky calculations and comparisons with deformed bands in the A=60 mass region, the two rotational bands are understood as being associated with configurations involving multiple f7/2 protons and g9/2 neutrons, driving the nucleus to sizable prolate deformation.
Essays in Service Operations Management
Creators: name: Slaugh, Vincent W.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The first two chapters of this thesis focus on the operation of rental businesses, which provides a novel and increasingly significant application of a supply chain and service operation. According to IBISWorld industry reports, at least fifteen different rental industries in the United States have annual revenues exceeding $1 billion. Furthermore, the consumer trend of \access over ownership" has spurred the creation of new and disruptive business models such as Rent the Runway, which rents designer dresses by mail to over 2 million users. However, existing operations management literature o ers little support to rental operations subject to complex demand characteristics and the loss of rental units due to customer damage or purchase.
Alloying 2D VSe2 with Pt: from a charge density wave state to a disordered insulator
Creators: name: Velez-Fort, E.
name: Mallet, P.
name: Boukari, H.
name: Marty, A.
name: Vergnaud, C.
name: Bonell, F.
name: Jamet, M.
name: Veuillen, J-Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have analyzed by means of scanning tunneling microscopy and spectroscopy the atomic and electronic structure of monolayers of 1T-VxPt1-xSe2 alloys grown by molecular beam epitaxy on epitaxial graphene substrates. We have focused on the composition range (0.1
Essays on Consumer Switching and Search Behavior
Creators: name: Qiwei  Han
Publisher: name: Figshare
Year: 2018
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: As recommender systems have increasingly become prevalent to guide consumers to find their desired products in many industries, understanding the impact of recommender systems on consumer choices is critical to the business performance and raises important policy implications. In this thesis, we examine the role of different recommendation schemes, spanning from interpersonal recommendations in social environment given by peers to product display recommendations in physical shopping environment given by sellers on consumers’ switching and search behavior in two distinct case studies. In the first study, we look at the effect of peer recommendations on subscriber churn in a large mobile network. We find that consumers’ propensity to churn increases with the number of friends that churn and in particular with the number of strong friends that churn. In the second study, we implement an in-vivo randomized field experiment to measure the effect of product display recommendations as book placement on shopper behavior in a physical bookstore. We leverage video tracking technologies to monitor how shoppers respond to random book placement, which induces random search costs. We find that books recommended at the edge of the table are more likely to be picked and taken than those placed at the center of the table. More interestingly, we also find that conditional on being picked, shoppers are equally likely to take books placed at the edge and at the center of the table, suggesting that display recommendations positively affect consumer choice mainly through its effect on the search process and not through its effect on the consideration process. Therefore, we empirically show that provision of recommendations, although in different schemes, may generally help to reduce consumers’ search costs in product or service discovery process, relative to what they would do without such an intervention. Moreover, we perform a comparative analysis between offline and online applications of recommender systems to systematically investigate the current practices, future prospects and policy perspectives when applying recommender systems in physical retailing. All these issues highlight opportunities for physical retailers to design, implement and evaluate their recommender systems that offer convenience benefits and appropriate protection to consumers.
Self-healing of structured light: a review
Creators: name: Shen, Yijie
name: Pidishety, Shankar
name: Nape, Isaac
name: Dudley, Angela
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Self-healing of light refers to the ability of a light field to recover its structure after being damaged by a partial obstruction placed in its propagation path. Here, we will give a comprehensive review of the history and development of self-healing effects, especially highlighting its importance in vector vortex beams carrying spin and orbital angular momenta. Moreover, an unified zoology of self-healing, structured light is proposed to unveil a deeper understanding of its physical mechanism and provide a bird's eye view on diverse forms of self-healing effects of different kinds of complex structured light. Finally, we outline the open challenges we are facing, potential opportunities and future trends for both fundamental physics and applications.
D6.1 - Large Scale Pilot implementation strategy and validation plan
Creators: name: ENGIE
name: VRIJE UNIVERSITEIT BRUSSEL
Publisher: name: Zenodo
Year: 2023
Subjects: Implementation
Validation
Pilots
KPIs

description: Considering the business cases defined in WP1 and the specificities of each pilot site, this task defines the detailed implementation and validation plan for each LSP, where specific reference implementations of the PLATOON architecture will be instantiated, and specific data analytical tools will be demonstrated on each local site and within the local context. An implementation plan is drafted for each location to break the strategy into identifiable steps that will ensure a timely start and completion of each pilot activity. A common framework is initially defined and then used across all locations.
 An initial monitoring plan and set of Key Performance Indicators (KPIs) is identified as part of the Validation Plan, and during this task the baselines values will be clearly measured.
 The validation plan has a specific chapter for the validation of each component of the PLATOON architecture, with special emphasis on the interoperability, governance and data security components, Edge Computing and Real Time Processing solutions or Big Data Collection (if applies to pilots), as well as the features of the Data Analytics Toolbox.
Independent measurement of the Hoyle state β feeding from B 12 using Gammasphere
Creators: name: Sethi, J.
name: Laursen, K.L.
name: Albers, M.
name: Hoffman, C.R.
name: Ayangeakaa, A.D.
name: Harker, J.L.
name: Avila, M.L.
name: Zhu, S.
name: Carnelli, P.F.F.
name: Talwar, R.
name: Nair, C.
name: Lauritsen, T.
name: Jiang, C.L.
name: Fynbo, H.O.U.
name: Carpenter, M.P.
name: Hubbard, N.J.
name: Greene, J.P.
name: Almaraz-Calderon, S.
name: Bertone, P.F.
name: Alcorta, M.
name: Munch, M.
name: Santiago-Gonzalez, D.
name: Chiara, C.J.
name: DiGiovine, B.
name: Ugalde, C.
name: Back, B.B.
name: Seweryniak, D.
name: Nusair, O.
name: Marley, S.T.
name: Kirsebom, O.S.
name: Clark, J.A.
Publisher: name: American Physical Society
Year: 2016

description: Using an array of high-purity Compton-suppressed germanium detectors, we performed an independent measurement of the β-decay branching ratio from B12 to the second-excited state, also known as the Hoyle state, in C12. Our result is 0.64(11)%, which is a factor ∼2 smaller than the previously established literature value, but is in agreement with another recent measurement. This could indicate that the Hoyle state is more clustered than previously believed. The angular correlation of the Hoyle state γ cascade has also been measured for the first time. It is consistent with theoretical predictions.
Improved understanding of the peaking phenomenon existing in the new di-$J/ψ$ invariant mass spectrum from the CMS Collaboration
Creators: name: Wang, Jun-Zhang
name: Liu, Xiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Very recently, the CMS Collaboration reported a peaking phenomenon existing in the di-$J/ψ$ invariant mass spectrum from $pp$ collision, by which the $X(6900)$ structure announced by the LHCb Collaboration was confirmed, but also more enhancement structures were discovered. Facing such a novel phenomenon, in this work we indicate that these new features reflected from the CMS measurement provide a good implication for a dynamical mechanism which reproduces the novel peaking phenomenon in the reported $J/ψ$-pair mass spectrum well. This mechanism is due to special reactions, where different charmonium pairs directly produced by $pp$ collision may transit into the final state of $J/ψJ/ψ$. The present work provides a special viewpoint to decode these observed fully charm structures in the $J/ψ$-pair invariant mass spectrum.
description: 9 pages, 2 tables and 5 figures
Decision Diagrams for Optimization
Creators: name: Cire, Andre Augusto
Publisher: name: Figshare
Year: 2018
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Decision diagrams are compact graphical representations of Boolean functions originally introduced for applications in circuit design, simulation, and formal verification. Recently, they have been considered for a variety of purposes in optimization and operations research. These include facet enumeration in integer programming, maximum flow computation in large-scale networks, solution counting in combinatorics, and learning in genetic programming techniques. In this dissertation we develop new methodologies based on decision diagrams to tackle discrete optimization problems. A decision diagram is viewed here as a graphical representation of the feasible solution set of a discrete problem. Since such diagrams may grow exponentially large in general, we work with the concept of approximate decision diagrams, first introduced by Andersen et al (2007). An approximate decision diagram is a graph of parameterized size that represents instead an over-approximation or under-approximation of the feasible solution set. Thus, it can be used to obtain either bounds on the optimal solution value or primal solutions to the problem. As our first contribution, we provide a modeling framework based on dynamic programming that can be used to specify how to build a decision diagram of a discrete optimization problem and how to approximate it, which facilitates the encoding process of a problem to a diagram representation. We then present a branching scheme that exploits the recursive structure of an approximate diagram, establishing a novel generic solver for discrete optimization problems. Computational results in classical optimization problems show that more instances can be solved in less computation time using our approach than mathematical programming techniques. In particular, we were able to reduce the known optimality gap of benchmark instances of the maximum cut problem. In our second contribution, we focus on the application of approximate diagrams to particular domains; namely, to sequencing problems, common in the context of routing and scheduling, and to timetable problems. We indicate that, besides the computation of bounds, approximate decision diagram can be used to deduce non-trivial constraints of a problem, such as precedence relations between jobs in scheduling applications. We show that such inference can be incorporated into state-of-the-art solvers and speed-up the optimization process by orders of magnitude. Finally, we propose new parallelization strategies that exploits the recursive structure of an approximate diagram. These strategies decouple a problem in a naturally loose fashion and allow for more effective load balancing heuristics when considering hundreds of computer cores.
Benchmarking spin-state chemistry in starless core models
Creators: name: Sipilä, O.
name: Caselli, P.
name: Harju, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims. We aim to present simulated chemical abundance profiles for a variety of important species, with special attention given to spin-state chemistry, in order to provide reference results against which present and future models can be compared. Methods. We employ gas-phase and gas-grain models to investigate chemical abundances in physical conditions corresponding to starless cores. To this end, we have developed new chemical reaction sets for both gas-phase and grain-surface chemistry, including the deuterated forms of species with up to six atoms and the spin-state chemistry of light ions and of the species involved in the ammonia and water formation networks. The physical model is kept simple in order to facilitate straightforward benchmarking of other models against the results of this paper. Results. We find that the ortho/para ratios of ammonia and water are similar in both gas-phase and gas-grain models, at late times in particular, implying that the ratios are determined by gas-phase processes. We derive late-time ortho/para ratios of ~0.5 and ~1.6 for ammonia and water, respectively. We find that including or excluding deuterium in the calculations has little effect on the abundances of non-deuterated species and on the ortho/para ratios of ammonia and water, especially in gas-phase models where deuteration is naturally hindered owing to the presence of abundant heavy elements. Although we study a rather narrow temperature range (10-20 K), we find strong temperature dependence in, e.g., deuteration and nitrogen chemistry. For example, the depletion timescale of ammonia is significantly reduced when the temperature is increased from 10 to 20 K; this is because the increase in temperature translates into increased accretion rates, while the very high binding energy of ammonia prevents it from being desorbed at 20 K.
description: 24 pages, 18 figures; accepted for publication in A&A; abstract abridged
A lightcone catalogue from the Millennium-XXL simulation: improved spatial interpolation and colour distributions for the DESI BGS
Creators: name: Smith, Alex
name: Cole, Shaun
name: Grove, Cameron
name: Norberg, Peder
name: Zarrouk, Pauline
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The use of realistic mock galaxy catalogues is essential in the preparation of large galaxy surveys, in order to test and validate theoretical models and to assess systematics. We present an updated version of the mock catalogue constructed from the Millennium-XXL simulation, which uses a halo occupation distribution (HOD) method to assign galaxies r-band magnitudes and g-r colours. We have made several modifications to the mock to improve the agreement with measurements from the SDSS and GAMA surveys. We find that cubic interpolation, which was used to build the original halo lightcone, produces extreme velocities between snapshots. Using linear interpolation improves the correlation function quadrupole measurements on small scales. We also update the g-r colour distributions so that the observed colours better agree with measurements from GAMA data, particularly for faint galaxies. As an example of the science that can be done with the mock, we investigate how the luminosity function depends on environment and colour, and find good agreement with measurements from the GAMA survey. This full-sky mock catalogue is designed for the ongoing Dark Energy Spectroscopic Instrument (DESI) Bright Galaxy Survey (BGS), and is complete to a magnitude limit r=20.2.
description: 15 pages, 11 figures. Accepted for publication in MNRAS
Triaxiality and exotic rotations at high spins in Ce 134
Creators: name: Chiara, C.J.
name: Matta, J.T.
name: Carpenter, M.P.
name: Garg, U.
name: Ayangeakaa, A.D.
name: Palit, R.
name: Kondev, F.G.
name: Janssens, R.V.F.
name: Seweryniak, D.
name: Lauritsen, T.
name: Patel, D.
name: Nayak, B.K.
name: Ghugre, S.S.
name: Guo, S.
name: Zhu, S.
name: Petrache, C.M.
Publisher: name: American Physical Society
Year: 2016

description: High-spin states in Ce134 have been investigated using the Cd116(Ne22,4n) reaction and the Gammasphere array. The level scheme has been extended to an excitation energy of ∼30 MeV and spin ∼54. Two new dipole bands and four new sequences of quadrupole transitions were identified. Several new transitions have been added to a number of known bands. One of the strongly populated dipole bands was revised and placed differently in the level scheme, resolving a discrepancy between experiment and model calculations reported previously. Configurations are assigned to the observed bands based on cranked Nilsson-Strutinsky calculations. A coherent understanding of the various excitations, both at low and high spins, is thus obtained, supporting an interpretation in terms of coexistence of stable triaxial, highly deformed, and superdeformed shapes up to very high spins. Rotations around different axes of the triaxial nucleus, and sudden changes of the rotation axis in specific configurations, are identified, further elucidating the nature of high-spin collective excitations in the A=130 mass region.
Link between the Potentially Hazardous Asteroid (86039) 1999 NC43 and the Chelyabinsk meteoroid tenuous
Creators: name: Reddy, Vishnu
name: Vokrouhlický, David
name: Bottke, William F.
name: Pravec, Petr
name: Sanchez, Juan A.
name: Gary, Bruce L.
name: Klima, Rachel
name: Cloutis, Edward A.
name: Galád, Adrián
name: Guan, Tan Thiam
name: Hornoch, Kamil
name: Izawa, Matthew R. M.
name: Kušnirák, Peter
name: Corre, Lucille Le
name: Mann, Paul
name: Moskovitz, Nicholas
name: Skiff, Brian
name: Vraštil, Jan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We explored the statistical and compositional link between Chelyabinsk meteoroid and potentially hazardous asteroid (86039) 1999 NC43 to investigate their proposed relation proposed by Borovička et al. (2013). Using detailed computation we confirm that the orbit of the Chelyabinsk impactor is anomalously close to 1999 NC43. We find about (1-3) x 10-4 likelihood of that to happen by chance. Taking the standpoint that the Chelyabinsk impactor indeed separated from 1999 NC43 by a cratering or rotational fission event, we run a forward probability calculation, which is an independent statistical test. However, we find this scenario is unlikely at the about (10-3 -10-2) level. We also verified compositional link between Chelyabinska and 1999NC43. Mineralogical analysis of Chelyabinsk (LL chondrite) and (8) Flora (the largest member of the presumed LL chondrite parent family) shows that their olivine and pyroxene chemistries are similar to LL chondrites. Similar analysis of 1999 NC43 shows that its olivine and pyroxene chemistries are more similar to L chondrites than LL chondrites (like Chelyabinsk). We also took photometric observations of 1999 NC43 over 54 nights during two apparitions (2000, 2014). The lightcurve of 1999 NC43 resembles simulated lightcurves of tumblers in Short-Axis Mode with the mean wobbling angle 20-30 deg. While, a mechanism of the non-principal axis rotation excitation is unclear, we can rule out the formation of asteroid in disruption of its parent body as a plausible cause, as it is unlikely that the rotation of an asteroid fragment from catastrophic disruption would be nearly completely halted. Considering all these facts, we find the proposed link between the Chelyabinsk meteoroid and the asteroid 1999 NC43 to be unlikely.
description: 52 pages, 13 figures, 3 tables