cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Extensive HST Ultraviolet Spectra and Multi-wavelength Observations of SN 2014J in M82 Indicate Reddening and Circumstellar Scattering by Typical Dust
Creators: name: Foley, Ryan J.
name: Fox, O. D.
name: McCully, C.
name: Phillips, M. M.
name: Sand, D. J.
name: Zheng, W.
name: Challis, P.
name: Filippenko, A. V.
name: Folatelli, G.
name: Hillebrandt, W.
name: Hsiao, E. Y.
name: Jha, S. W.
name: Kirshner, R. P.
name: Kromer, M.
name: Marion, G. H.
name: Nelson, M.
name: Pakmor, R.
name: Pignata, G.
name: Roepke, F. K.
name: Seitenzahl, I. R.
name: Silverman, J. M.
name: Skrutskie, M.
name: Stritzinger, M. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: SN 2014J in M82 is the closest detected Type Ia supernova (SN Ia) in at least 28 years and perhaps in 410 years. Despite its small distance of 3.3 Mpc, SN 2014J is surprisingly faint, peaking at V = 10.6 mag, and assuming a typical SN Ia luminosity, we infer an observed visual extinction of A_V = 2.0 +/- 0.1 mag. But this picture, with R_V = 1.6 +/- 0.2, is too simple to account for all observations. We combine 10 epochs (spanning a month) of HST/STIS ultraviolet through near-infrared spectroscopy with HST/WFC3, KAIT, and FanCam photometry from the optical to the infrared and 9 epochs of high-resolution TRES spectroscopy to investigate the sources of extinction and reddening for SN 2014J. We argue that the wide range of observed properties for SN 2014J is caused by a combination of dust reddening, likely originating in the interstellar medium of M82, and scattering off circumstellar material. For this model, roughly half of the extinction is caused by reddening from typical dust (E(B-V ) = 0.45 mag and R_V = 2.6) and roughly half by scattering off LMC-like dust in the circumstellar environment of SN 2014J.
description: 17 pages (excluding references and tables), 15 figures, accepted to MNRAS. A high-resolution HST image of SN 2014J in M82 is available upon request
Comparative study on ABCB1-dependent efflux of anthracyclines and their metabolites: consequences for cancer resistance
Creators: name: Piska, Kamil
name: Koczurkiewicz-Adamczyk, Paulina
name: Jamrozik, Marek
name: Bucki, Adam
name: Kołaczkowski, Marcin
name: Pękala, Elżbieta
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: Virology
subject: Computational Biology

description: 1. ABCB1 (P-glycoprotein, MDR1) is one of the most important transporter involved in cancer multi-drug resistance. It also plays a significant role in cancer resistance against anthracyclines, an anticancer group of drugs, including doxorubicin and daunorubicin. Several intracellular enzymes metabolise anthracyclines to carbonyl-reduced, hydroxy metabolites, which have impaired cytotoxic properties. However, metabolite efflux by ABCB1 transporter is not well characterised, while it may be the mechanism responsible for the metabolites’ lack of activity. 2. In this study recombinant ABCB1 ATPase transporter assay; anthracyclines accumulation assay in resistant cells overexpressing ABCB1; and molecular modelling were used to investigate anthracyclines: doxorubicin and daunorubicin and their carbonyl-reduced metabolites (doxorubicinol, daunorubicinol) susceptibility for ABCB1-dependent efflux. 3. Based on the kinetics parameters of ATPase activity of ABCB1, it was found that daunorubicinol exerted an exceptionally high potential for being effluxed by the ABCB1 transporter. ABCB1 significantly affected the accumulation pattern of studied chemicals in resistant cancer cells. Doxorubicin and daunorubicinol accumulation were influenced by the activity of ABCB1 modulator – valspodar. 4. Results indicate that ABCB1 activity affects not only anthracyclines but also their metabolites. Therefore crosstalk between the process of anthracyclines metabolism and metabolite efflux may be the mechanism of impairing anticancer properties of anthracyclines metabolites.
Effect of Hydroxyurea Therapy on Growth Parameters in Older Children (6-15 Year-Old) with Sickle Cell Disease: Low Dose Versus High Dose
Creators: name: Khater, Doaa
name: Al-Mulaabed, Sharef
name: Alomairi, Anwar
name: Elshinawy, Mohamed
name: Soliman, Ashraf
name: Elshinawy, Noor
name: Wali, Yasser
name: AL Yaarubi, Saif
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Hematology
subject: Computational Biology

description: Growth impairment is a known complication of sickle cell disease (SCD). Few studies explored the potential effects of hydroxyurea (HU) on growth in children with SCD in relation to HU dose and response. This is a prospective study conducted at Sultan Qaboos University Hospital, Oman, and included 91 SCD patients with age below 16 years when started on HU, aiming to explore the potential effect/s of HU on growth parameters of older children with SCD in relation to their clinical improvement and the dose required for this improvement. Weight, height, and body mass index (BMI) were collected at baseline, 6 and 18 months after initiation. Anthropometric data were compared to WHO standards. Initial height and BMI Z scores (HAZ and WAZ) were lower compared to WHO norms. HAZ and WAZ did not change significantly after 6 and 18 months on HU therapy. However, BMI Z-scores improved significantly after 6 and 18 months of follow-up (p value 0.044 and 0.028 respectively). No significant changes were observed in WAZ or HAZ among patients on low dose versus those on high dose. BMI Z score improved significantly after 18 months of low dose group (p = 0.014) but did not change in those on high dose HU. In conclusion, HU therapy did not adversely affect weight and height growth in older children with SCD. BMI Z scores improved at 18 months in patients on low dose but not in those on high dose (p = 0.014).
Quadratic and Higher-Order Unconstrained Binary Optimization of Railway Rescheduling for Quantum Computing
Creators: name: Domino, Krzysztof
name: Kundu, Akash
name: Salehi, Özlem
name: Krawiec, Krzysztof
Publisher: name: arXiv
Year: 2021
Subjects: subject: Emerging Technologies (cs.ET)
subject: Systems and Control (eess.SY)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: As consequences of disruptions in railway traffic affect passenger experience/satisfaction, appropriate rerouting and/or rescheduling is necessary. These problems are known to be NP-hard, given the numerous restrictions of traffic nature. With the recent advances in quantum technologies, quantum annealing has become an alternative method to solve such optimization problems. To use quantum annealing, the problem needs to be encoded in QUBO (quadratic unconstrained binary optimization) or HOBO (higher-order binary optimization) formulation that can be recast as a QUBO. This paper introduces QUBO and HOBO representations for rescheduling problems of railway traffic management; the latter is a new approach up to our knowledge. This new approach takes into account not only the single-track lines but also the double- and multi-track lines, as well as stations composed of tracks and switches. We consider the conditions of minimal headway between trains, minimal stay on stations, track occupation, and rolling stock circulation. Furthermore, a hybrid quantum-classical procedure is presented that includes rerouting. We demonstrate the proof of concept implementation on the D-Wave Quantum Processing Unit and D-Wave hybrid solver.
Testing General Relativity using Quasi-Periodic Oscillations from X-ray Black Holes: XTE J1550-564 and GRO J1655-40
Creators: name: Rink, Katherine
name: Caiazzo, Ilaria
name: Heyl, Jeremy
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the Relativistic Precession Model (RPM) (Stella et al. 1999a) and quasi-periodic oscillation (QPO) observations from the Rossi X-ray Timing Explorer to derive constraints on the properties of the black holes that power these sources and to test General Relativity (GR) in the strong field regime. We extend the techniques outlined by Motta et al. (2014a,b) to use pairs of simultaneously measured QPOs, rather than triplets, and extend the underlying spacetime metric to constrain potential deviations from the predictions of GR for astrophysical black holes. To do this, we modify the RPM model to a Kerr-Newman-deSitter spacetime and model changes in the radial, ecliptic, and vertical frequencies. We compare our models with X-ray data of XTE J1550-564 and GRO J1655-40 using robust statistical techniques to constrain the parameters of the black holes and the deviations from GR. For both sources we constrain particular deviations from GR to be less than one part per thousand.
description: 9 pages, 7 figures
Effect of Hydroxyurea Therapy on Growth Parameters in Older Children (6-15 Year-Old) with Sickle Cell Disease: Low Dose Versus High Dose
Creators: name: Khater, Doaa
name: A-Mulaabed, Sharef
name: Alomairi, Anwar
name: Elshinawy, Mohamed
name: Soliman, Ashraf
name: Elshinawy, Noor
name: Wali, Yasser
name: AL Yaarubi, Saif
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Hematology
subject: Computational Biology

description: Growth impairment is a known complication of sickle cell disease (SCD). Few studies explored the potential effects of hydroxyurea (HU) on growth in children with SCD in relation to HU dose and response. This is a prospective study conducted at Sultan Qaboos University Hospital, Oman, and included 91 SCD patients with age below 16 years when started on HU, aiming to explore the potential effect/s of HU on growth parameters of older children with SCD in relation to their clinical improvement and the dose required for this improvement. Weight, height, and body mass index (BMI) were collected at baseline, 6 and 18 months after initiation. Anthropometric data were compared to WHO standards. Initial height and BMI Z scores (HAZ and WAZ) were lower compared to WHO norms. HAZ and WAZ did not change significantly after 6 and 18 months on HU therapy. However, BMI Z-scores improved significantly after 6 and 18 months of follow-up (p value 0.044 and 0.028 respectively). No significant changes were observed in WAZ or HAZ among patients on low dose versus those on high dose. BMI Z score improved significantly after 18 months of low dose group (p = 0.014) but did not change in those on high dose HU. In conclusion, HU therapy did not adversely affect weight and height growth in older children with SCD. BMI Z scores improved at 18 months in patients on low dose but not in those on high dose (p = 0.014).
Lepton and quark mixing patterns with generalized CP transformations
Creators: name: Ganguly, Joy
name: Hundi, Raghavendra Srikanth
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we have modified a scenario, originally proposed by Grimus and Lavoura, in order to obtain maximal values for atmospheric mixing angle and CP violating Dirac phase of the lepton sector. To achieve this, we have employed CP and some discrete symmetries in a type II seesaw model. In order to make predictions about neutrino mass ordering and the smallness of the reactor angle, we have obtained some conditions on the elements of the neutrino mass matrix of our model. Finally, within the framework of our model, we have studied quark masses and mixing pattern.
description: 36 pages, 1 figure, 3 tables; apart from adding 2 sections, added more content and clarifications; published in Chinese Physics C
Cornering a Hyper Higgs: Angular Kinematics for Boosted Higgs Bosons with Top Pairs
Creators: name: Bramante, Joseph
name: Delgado, Antonio
name: Martin, Adam
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the wake of the Higgs discovery and over the long haul of the LHC run, one should keep a lookout for kinematic anomalies in the most massive known trio of coupled particles, $t \bar{t} h$. After surveying the scope of prior constraints on chromomagnetic dipole and Higgs-gluon kinetic couplings, we focus on surpluses of boosted-$p_T$ Higgs bosons fomented by these momentum dependent dimension-six operators in $t \bar{t} h$ final states. We uncover a number of simple, $p_T$ weighted angular variables useful for discriminating Standard Model from dimension-6 boosted Higgs distributions, and make headway arguing that one of these variables may improve the reach of existing Standard Model top-Higgs searches. The approach we take is model independent, because we just consider a set of effective operators that contribute to the same three-body final state.
description: 16 pages, 7 figures, published version
Video Crowd Localization with Multi-focus Gaussian Neighborhood Attention and a Large-Scale Benchmark
Creators: name: Li, Haopeng
name: Liu, Lingbo
name: Yang, Kunlin
name: Liu, Shinan
name: Gao, Junyu
name: Zhao, Bin
name: Zhang, Rui
name: Hou, Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Video crowd localization is a crucial yet challenging task, which aims to estimate exact locations of human heads in the given crowded videos. To model spatial-temporal dependencies of human mobility, we propose a multi-focus Gaussian neighborhood attention (GNA), which can effectively exploit long-range correspondences while maintaining the spatial topological structure of the input videos. In particular, our GNA can also capture the scale variation of human heads well using the equipped multi-focus mechanism. Based on the multi-focus GNA, we develop a unified neural network called GNANet to accurately locate head centers in video clips by fully aggregating spatial-temporal information via a scene modeling module and a context cross-attention module. Moreover, to facilitate future researches in this field, we introduce a large-scale crowd video benchmark named VSCrowd, which consists of 60K+ frames captured in various surveillance scenarios and 2M+ head annotations. Finally, we conduct extensive experiments on three datasets including our SenseCrowd, and the experiment results show that the proposed method is capable to achieve state-of-the-art performance for both video crowd localization and counting.
Quantify LiDAR's geometry capturing capability for structural and construction assessment
Creators: name: Trias Blanco, Adriana Carolina
Publisher: name: No Publisher Supplied
Year: 2020

description: This research is motivated by the need for improved assessment and diagnosis techniques for highway bridges to identify and characterize performance deficiencies efficiently in order to prolong services lives and reduce life-cycle costs. Rapidly deployable technologies such as wireless, non-contact or remote sensing have attracted significant attention over the last decade to fill this need. In particular, this growing interest in sensing technologies that may be deployed in a rapid or noninvasive manner has focused on the identification of application scenarios that demonstrate the value of such technologies over conventional approaches. This research explores the use of remote sensing (e.g. Light Detection and Ranging (LiDAR)) to support and improved bridge assessment beginning with construction and extending throughout the life-cycle.More specifically, this research stablished the following objectives: (1) Evaluate the information gained from full-field LiDAR data, compared to conventional single-point data collection, as a means to properly characterize the overall bridge and member geometry for demand and capacity calculation purposes, (2) Identify and characterize error sources associated with LiDAR data obtained from operating bridges and develop recommendations to ensure these error sources are considered during the planning, execution, and data interpretation phases of LiDAR data collection, (3) Quantify the value of deploying LiDAR to capture bridge geometry before, during and after construction as a means to improve construction quality and create a geometry inventory to verify as-built dimensions and establish a baseline for future assessments, and (4) Establish guidelines based on the advantages and shortcomings of LiDAR to address bridge assessment. To satisfy these objectives, this research leveraged field data collection efforts, the unique capabilities of the Bridge Evaluation and Accelerated Structural Testing (BEAST) laboratory, as well as small-scale physical model and mathematical model. The field study was focused on a 12-span steel stringer bridge in the Philadelphia region. This structure was subjected to extensive LiDAR scanning, and data processing methods towards applications of the load rating process to satisfy the requirements of Objective 1. In addition, a single span steel stringer bridge superstructure constructed within the BEAST lab served as the centerpiece for the scope assembled to satisfy Objective 2. This specimen was subjected to numerous LiDAR scans during the steel placement, formwork construction, rebar installation, and deck pouring. Further, LTBP LiDAR data was analyzed and correlated with previously acquired NDE data to contribute achieving the requirements of Objective 3. Finally, a set of recommendations were stablished for the use of LiDAR scanning to support bridge assessment activities from construction through the entire life-cycle of highway bridges.
Assessment of land use/land cover dynamics in Zhob river basin,Pakistan
Creators: name: Akhtar, Malik Muhammad
name: Sheikh, Aiman
name: Ghaffar, Muhammad
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2022
Subjects: GIS
image classifications
LU/LC
remote sensing
Zhob river basin

description: Songklanakarin Journal of Science an Technology (SJST), 44, 6, 1399-1406
High-resolution Observations of the Shock Wave Behavior for Sunspot Oscillations with the Interface Region Imaging Spectrograph
Creators: name: Tian, H.
name: DeLuca, E.
name: Reeves, K. K.
name: McKillop, S.
name: De Pontieu, B.
name: Martínez-Sykora, J.
name: Carlsson, M.
name: Hansteen, V.
name: Kleint, L.
name: Cheung, M.
name: Golub, L.
name: Saar, S.
name: Testa, P.
name: Weber, M.
name: Lemen, J.
name: Title, A.
name: Boerner, P.
name: Hurlburt, N.
name: Tarbell, T. D.
name: Wuelser, J. P.
name: Kankelborg, C.
name: Jaeggli, S.
name: McIntosh, S. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first results of sunspot oscillations from observations by the Interface Region Imaging Spectrograph. The strongly nonlinear oscillation is identified in both the slit-jaw images and the spectra of several emission lines formed in the transition region and chromosphere. We first apply a single Gaussian fit to the profiles of the Mgii 2796.35 Å, Cii 1335.71 Å, and Si iv 1393.76 Å lines in the sunspot. The intensity change is about 30%. The Doppler shift oscillation reveals a sawtooth pattern with an amplitude of about 10 km/s in Si iv. In the umbra the Si iv oscillation lags those of Cii and Mgii by about 3 and 12 s, respectively. The line width suddenly increases as the Doppler shift changes from redshift to blueshift. However, we demonstrate that this increase is caused by the superposition of two emission components. We then perform detailed analysis of the line profiles at a few selected locations on the slit. The temporal evolution of the line core is dominated by the following behavior: a rapid excursion to the blue side, accompanied by an intensity increase, followed by a linear decrease of the velocity to the red side. The maximum intensity slightly lags the maximum blueshift in Si iv, whereas the intensity enhancement slightly precedes the maximum blueshift in Mgii. We find a positive correlation between the maximum velocity and deceleration, a result that is consistent with numerical simulations of upward propagating magnetoacoustic shock waves.
description: 5 figures, in ApJ. Correction of time lags (correct values are 3 and 12s) made on June 17 2014
High-Level Coupled-Cluster Energetics by Merging Moment Expansions with Selected Configuration Interaction
Creators: name: Gururangan, Karthik
name: Deustua, J. Emiliano
name: Shen, Jun
name: Piecuch, Piotr
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Inspired by our earlier semi-stochastic work aimed at converging high-level coupled-cluster (CC) energetics [J. E. Deustua, J. Shen, and P. Piecuch, Phys. Rev. Lett. 119, 223003 (2017); J. Chem. Phys. 154, 124103 (2021)], we propose a novel form of the CC($P$;$Q$) theory in which the stochastic Quantum Monte Carlo propagations, used to identify dominant higher-than-doubly excited determinants, are replaced by the selected configuration interaction (CI) approach using the CIPSI algorithm. The advantages of the resulting CIPSI-driven CC($P$;$Q$) methodology are illustrated by a few molecular examples, including the dissociation of $\mathrm{F_2}$ and the automerization of cyclobutadiene, where we recover the electronic energies corresponding to the CC calculations with a full treatment of singles, doubles, and triples based on the information extracted from compact CI wave functions originating from relatively inexpensive Hamiltonian diagonalizations.
description: 16 pages, 4 tables, 1 figure. This article has been accepted for publication in the Journal of Chemical Physics. After it is published, it will be found at https://doi.org/10.1063/5.0064400
Appendix to DOI: 10.1088/1748-9326/ab9465
Creators: name: Raïsa Carmen
name: Leone, Michael
name: Jacobs, Sander
name: Palliwoda, Julia
name: Priess, Jörg A.
name: Misiune, Ieva
name: Pinto, Luís
name: Pereira, Paulo
name: Ferreira, Carla Sofia
name: Ferreira, António
Publisher: name: Zenodo
Year: 2020

description: This appendix for the article "Keep it real: Selecting realistic sets of urban green space indicators" (DOI: 10.1088/1748-9326/ab9465) describes in detail the conceptual framework and the DEA results for all four case studies.
Plasmon-assisted quantum control of distant emitters
Creators: name: Susa, C. E.
name: Reina, J. H.
name: Hildner, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how to generate and control the correlations in a set of two distant quantum emitters coupled to a one-dimensional dissipative plasmonic waveguide. An external laser field enhances the dimer's steady-state correlations and allows an active control (switching on/off) of nonclassical correlations. The plasmon-assisted dipolar-interacting qubits exhibit persistent correlations, which in turn can be decoupled and made to evolve independently from each other. The setup enables long-distance ($\sim 1\, μ$m) qubit control that works for both resonant and detuned emitters. For suitable emitter initialization, we also show that the quantum correlation is always greater than the classical one.
description: 7 pages, 4 figures
Seasonal and diurnal dynamics of radio noise for 8-20MHz poleward-oriented mid-latitude radars
Creators: name: Berngardt, O. I.
name: Maurice, J. -P. St.
name: Ruohoniemi, J. M.
name: Marchaudon, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Space Physics (physics.space-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Based on ray tracing in a smooth ionosphere described by the IRI-2016 model we have infered the seasonal-diurnal dynamics of radio noise observed by four mid-latitude HF radars. In the calculations, noise is assumed to propagate from the radar dead zone boundary. Noise absorption along the ray path is simulated from the IRI-2016 electron density, and from the molecular nitrogen density and electron temperatures obtained from the NRLMSISE-00 model. Model results are compared with experimental radar data, and good agreement between the two is demonstrated. The model makes it possible to estimate the amount of absorption in D- and E- layers under average undisturbed conditions. This is important for the retrieval of long term variations in the electron density in the lower ionosphere. The model also makes it feasible to interpret vertical absorption in experimental data, thereby significantly expanding the capability of HF radars to monitor the lower ionosphere.
description: 22 pages, 7 figures, submitted to Radio Science
Reliability prediction for aircraft fleet operators: A Bayesian network model that combines supplier estimates, maintenance data and expert judgement
Creators: name: Küçüker, Faruk Umut
name: Yet, Barbaros
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Pharmacology
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Mathematical Sciences not elsewhere classified
Science Policy

description: Reliability prediction is crucial for aircraft maintenance and spare part inventory decisions. These predictions are made based on operational data collected by fleet operators or design life estimates provided by aircraft suppliers. Purely data-driven predictions have limited use especially when the fleet is young, hence the data is scarce. In this case, design life estimates are used for predicting reliability often by assuming a constant failure rate. This strong assumption is not necessarily valid for all components. This paper proposes a Bayesian Network (BN) modelling framework that systematically combines design life estimates, operational data, and expert judgement for reliability prediction of aircraft subsystems. The proposed BN adjusts the design life estimates based on expert judgement regarding supplier and manufacturing quality and revises it based on operational data. We used the BN to predict the reliability of a large aircraft fleet by using failure and maintenance data provided by a large fleet operator. We compared the predictive performance of the BN to using only data-driven approaches and to using only design life estimates provided by the aircraft supplier. The BN model provides consistently accurate reliability predictions compared to design-life estimates and purely data-driven approaches especially when the available data is scarce.
From stellar nebula to planets: the refractory components
Creators: name: Thiabaud, Amaury
name: Marboeuf, Ulysse
name: Alibert, Yann
name: Cabral, Nahuel
name: Leya, Ingo
name: Mezger, Klaus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We computed the abundance of refractory elements in planetary bodies formed in stellar systems with solar chemical composition by combining models for chemical composition and planet formation. We also consider the formation of refractory organic compounds, which have been ignored in previous studies on this topic. We used the commercial software package HSC Chemistry in order to compute the condensation sequence and chemical composition of refractory minerals incorporated into planets. The problem of refractory organic material is approached with two distinct model calculations: the first considers that the fraction of atoms used in the formation of organic compounds is removed from the system (i.e. organic compounds are formed in the gas phase and are nonreactive); and the second assumes that organic compounds are formed by the reaction between different compounds that had previously condensed from the gas phase. Results show that refractory material represents more than 50 wt % of the mass of solids accreted by the simulated planets, with up to 30 wt % of the total mass composed of refractory organic compounds. Carbide and silicate abundances are consistent with C/O and Mg/Si elemental ratios of 0.5 and 1.02 for the Sun. Less than 1 wt % of carbides; pyroxene and olivine in similar quantities are formed. The model predicts planets that are similar in composition to those of the Solar system. It also shows that, starting from a common initial nebula composition, a wide variety of chemically different planets can form, which means that the differences in planetary compositions are due to differences in the planetary formation process. We show that a model in which refractory organic material is absent from the system is more compatible with observations. The use of a planet formation model is essential to form a wide diversity of planets in a consistent way.
description: 18 pages, 29 figures. Accepted for publication in A&A
Mechanical characteristics of dissimilar alloy friction welded joint
Creators: name: M. Krishna
name: P. Gowtham Anban
name: A. G. Abishake
name: J. Hariharan
name: S. Bala Sreemanikandan
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2022
Subjects: Cu based shape memory alloy
Fe based shape memory alloy
friction welding
mechanical study
metallurgical study

description: Songklanakarin Journal of Science an Technology (SJST), 44, 6, 1407-1411
What is Time in Quantum Mechanics?
Creators: name: Jadczyk, Arkadiusz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 37N20 81P15 81Q35 81Q65

description: Time of arrival in quantum mechanics is discussed in two versions: the classical axiomatic "time of arrival operator" introduced by J. Kijowski and the EEQT method. It is suggested that for free particles the two methods may lead to the same result. On the other hand the EEQT method can be easily geometrized within the framework of Galilei-Newton general relativistic quantum mechanics developed by M. Modugno and collaborators, and it can be applied to non-free evolutions. The way of geometrization of irreversible quantum dynamics based on dissipative Liouville equation is suggested.
description: 22 pages, 8 figures, Contribution to "Geometry and Quantum Theories" Workshop, Florence June 10-11, 2013. Dozen of misprints corrected, two missing references added. Accepted for publication in International Journal of Geometric Methods in Modern Physics
Production of charm-strange hadronic molecules at the LHC
Creators: name: Guo, Feng-Kun
name: Meißner, Ulf-G.
name: Wang, Wei
name: Yang, Zhi
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We explore the inclusive hadroproduction of the D_{s0}^*(2317), D_{s1}(2460) and D_{sJ}(2860) states at the Large Hadron Collider under the assumption that these hadrons are S-wave meson-meson molecules. In addition, the D_{s2}(2910), a predicted bound state of the D_2(2460)K system, is also discussed. We first derive a factorisation formula for the production rates based on effective field theory. Then we make use of two MC event generators, Herwig and Pythia, to simulate the production of pairs of charmed mesons and kaons. Using effective field theory to handle the final state interaction among the meson pairs, we give an estimate of the inclusive production rates for these particles at the order-of-magnitude accuracy. Our results show that the cross sections for the pp --> D_{s0}^*(2317) and pp --> D_{s1}(2460) at the LHC are at O(1 μb) level, while the ones for the pp --> D_{sJ}(2860) and the pp --> D_{s2}(2910) are smaller by about one order of magnitude. Such estimates suggest that these four exotic states could be copiously produced at the LHC. A study of these states at the LHC will thus provide valuable information on hadron spectroscopy as well as hadron interactions.
description: 20 pages, 4 figures, version accepted for publication in JHEP
Clustering and enhanced classification using a hybrid quantum autoencoder
Creators: name: Srikumar, Maiyuren
name: Hill, Charles D.
name: Hollenberg, Lloyd C. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum machine learning (QML) is a rapidly growing area of research at the intersection of classical machine learning and quantum information theory. One area of considerable interest is the use of QML to learn information contained within quantum states themselves. In this work, we propose a novel approach in which the extraction of information from quantum states is undertaken in a classical representational-space, obtained through the training of a hybrid quantum autoencoder (HQA). Hence, given a set of pure states, this variational QML algorithm learns to identify, and classically represent, their essential distinguishing characteristics, subsequently giving rise to a new paradigm for clustering and semi-supervised classification. The analysis and employment of the HQA model are presented in the context of amplitude encoded states - which in principle can be extended to arbitrary states for the analysis of structure in non-trivial quantum data sets.
description: 15 pages, 14 figures
The correlation of combined OGG1, CYP1A1 and GSTP1 gene variants and risk of lung cancer of male Iraqi waterpipe tobacco smokers
Creators: name: Kudhair, Bassam
name: Noralhuda N. Alabid
name: Karrar S. Zayed
name: Lafta, Inam J.
name: Taheri-Kafrani, Asghar
Publisher: name: figshare
Year: 2020
Subjects: subject: 111201 Cancer Cell Biology
subject: FOS: Clinical medicine
subject: 110311 Medical Genetics (excl. Cancer Genetics)
subject: FOS: Basic medicine
subject: 111203 Cancer Genetics
subject: Cancer
subject: 111202 Cancer Diagnosis

description: Genetic polymorphisms of genes whose products are responsible for activities, such as xenobiotic metabolism, mutagen detoxification and DNA-repair, have been predicted to be associated with the risk of developing lung cancer (LC). The association of LC with tobacco smoking has been extensively investigated, but no studies have focused on the Arab ethnicity. Previously, we examined the association between genetic polymorphisms among Phase I and Phase II metabolism genes and the risk of LC. Here, we extend the data by examining the correlation of OGG1 Ser326Cys combined with CYP1A1 (Ile462Val and MspI) and GSTP1 (Ile105Val and Ala103Val) polymorphisms with the risk of LC. Polymerase chain reaction-restriction fragment length polymorphism (PCR–RFLP) and gene sequencing were carried out for genotyping the OGG1 polymorphisms of 123 LC patients and 129 controls. No significant differences in the frequencies of the OGG1 mutant allele between patients and controls were found. The distributions of heterozygous Ser/Cys or Cys/Cys genotypes of OGG1 were not associated with the risk of LC either according to the histological types of LC or based on waterpipe tobacco (WP) smoking status. In contrast, the combined effect of OGG1 variants with CYP1A1 and GSTP1 variants revealed a significant correlation with the OGG1 Ser326Cys—CYP1A1 MspI variants pairing. This association was significant (p = 0.001) in individuals who carried homozygous or heterozygous variant type genotypes of both genes in a reference with carriers of both wild-type genotypes (wt/wt − wt/wt). The odds ratios were 2.99 (95% CI 1.67–5.36), 2.68 (95% CI 1.08–6.62), and 2.80 (95% CI 1.18–6.69) for those who carried (wt/wt − wt/vt + vt/vt), (wt/vt + vt/vt − wt/wt), and (wt/vt + vt/vt − wt/vt + vt/vt), respectively. The study suggests a limited correlation is present between carrying OGG1 Ser326Cys polymorphism and the risk of developing LC in Arab populations.
The Poker Face of the Majoron Dark Matter Model: LUX to keV Line
Creators: name: Queiroz, Farinaldo S.
name: Sinha, Kuver
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the viability of pseudo Nambu-Goldstone bosons (Majorons) arising in see-saw models as dark matter candidates. Interestingly the stability of the Majoron as dark matter is related to the scale that sets the see-saw and leptogenesis mechanisms, while its annihilation and scattering cross section off nuclei can be set through the Higgs portal. For $\mathcal{O}(GeV) - \mathcal{O}(TeV)$ Majorons, we compute observables such as the abundance, scattering cross section, Higgs invisible decay width, and emission lines and compare with current data in order to outline the excluded versus still viable parameter space regions. We conclude that the simplest Majoron dark matter models coupling through the Higgs portal, except at the Higgs resonance, are excluded by current direct detection data for Majorons lighter than $225$~GeV and future runnings are expected to rule out decisively the 1GeV-1TeV window. Lastly, we point out that light keV-scale Majorons whose relic density is set by thermal freeze-in from sterile neutrinos can account for the keV line observed by XMM-Newton observatory in the spectrum of 73 galaxy clusters, within a see-saw model with a triplet Higgs.
description: 7 pages, 3 figures. Matches published version
Building up the elliptic flow: analytical insights
Creators: name: Hatta, Yoshitaka
name: Xiao, Bo-Wen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we present a fully analytical description of the early-stage formation of elliptic flow in relativistic viscous hydrodynamics. We first construct an elliptic deformation of Gubser flow which is a boost invariant solution of the Navier-Stokes equation with a nontrivial transverse profile. We then analytically calculate the momentum anisotropy of the flow as a function of time and discuss the connection with the empirical formula by Bhalerao {\it et al.} regarding the viscosity dependence of elliptic flow.
description: 8 pages;v2. To be published in physics letters B
Sales volume and online reviews in a sequential game
Creators: name: Zhou, Jianheng
name: Xu, Rongfei
name: Jiang, Changmin
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Science Policy
subject: Mental Health

description: In the age of e-commerce, consumers tend to base their purchasing decisions on online information, including the sales volume and the online reviews of products. To investigate the impact of such behaviour on firms’ competition strategy, we built a two-period model, which includes a leader firm that exists in the market for both periods and a follower firm that only enters the market in the second period. We consider three circumstances of online information: with no information, with sales volume information only, and with both sales volume and online reviews information. We show that when only sales volume information is available, the leader firm can always gain a competitive advantage over the follower firm in the second period. However, with the availability of both sales volume and online reviews, under certain conditions, the follower firm will be more competitive in the second period. Furthermore, neither sales volume information nor online reviews can guarantee the leader firm a higher profit.
A Novel Mutational Approach to Uncover Genetic Determinants of Hybrid Vigor in Maize
Creators: name: Kuhn, Emily A
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 310509
subject: Genomics
classificationCode: 300803
subject: Horticultural crop improvement (incl. selection and breeding)
classificationCode: 310206
subject: Sequence analysis
classificationCode: 310204
subject: Genomics and transcriptomics

description: Heterosis, or hybrid vigor, is a phenomenon observed in both plant and animal systems where hybrid offspring perform better when compared to their parents. For hybrid plants, this can result in increased biomass, crop yields, and vigor when compared to the inbred parents. Even though heterosis has been used in agriculture for over a century, the molecular mechanisms that result in hybrid vigor remain elusive even after years of investigation. A molecular understanding of heterosis is desirable because it will speed up the process of breeding compatible inbred lines for developing hybrid seeds, and it will provide us with the knowledge to potentially engineer inbred lines that can mimic the beneficial phenotypic effects of heterosis, eliminating the need for farmers to buy new hybrid seeds every year. The goal of this research project is to identify genes that are required for heterotic phenotypes in maize. Our working hypothesis is that a mutation in genes that are essential for heterosis will cause an altered heterotic phenotype in hybrid maize plants. To test this hypothesis, we applied combined approaches of EMS mutagenesis, trait phenotyping in field and controlled conditions, bulk segregant analysis, whole genome sequencing, and bioinformatics analysis. First, we applied a forward genetics approach to identify mutant hybrids with altered heterosis and detected potential causal genes via whole genome sequencing. We identified one mutation occurring in a protein coding gene (gene ID Zm00001eb305590) located in a region of interest on chromosome 7, whose genotypes across various samples assayed fit the observed segregation pattern of hybrid traits. This mutation leads to a moderate or high-level codon change, indicating that this gene may play a role in mediating heterosis in maize. By investigating this gene with further studies, the learned knowledge could speed up the process of hybrid maize breeding by selecting compatible inbred lines through sequencing or by engineering hybrids that have favorable alleles for this gene.
Characterization of pickled Madan made by Lactobacillus plantarumNR-MD6-18 (K2) fermentation
Creators: name: Thitikorn Mahidsanan
name: Priyada Sittisart
name: Sutida Phonanake
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2022
Subjects: fermented pickle
Lactobacillus plantarum starter
antioxidant
product quality
Garcinia schomburgkiana pierre

description: Songklanakarin Journal of Science an Technology (SJST), 44, 6, 1412-1418
Three-dimensional evolution of flux rope CMEs and its relation to the local orientation of the heliospheric current sheet
Creators: name: Isavnin, Alexey
name: Vourlidas, Angelos
name: Kilpua, Emilia K. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Flux ropes (FRs) ejected from the Sun may change their geometrical orientation during their evolution which directly affects their geoeffectiveness. Therefore, it is crucial to understand how solar FRs evolve in the heliosphere to improve our space weather forecasting tools. We analyze 15 coronal mass ejections (CMEs), with clear FR signatures, observed during the decay of Solar Cycle 23 and rise of Solar Cycle 24. We estimate initial orientations of the FRs at the origin using extreme ultraviolet observations of post-eruption arcades and/or eruptive prominences. Then we reconstruct multiviewpoint coronagraph observations of the CMEs from ~2 to 30 Rs with a three-dimensional geometric representation of a FR to determine their geometrical parameters. Finally, we propagate the FRs from ~30 Rs to 1 AU through MHD-simulated background solar wind while using in-situ measurements at 1 AU of the associated magnetic cloud as a constraint for the propagation technique. These methodology allows us to estimate the FR orientation all the way from the Sun to 1 AU. We find that while the FRs deflection occurs predominantly below 30 Rs, a significant amount of deflection and rotation happens between 30 Rs and 1 AU. We compare the FR orientation to the local orientation of the heliospheric current sheet (HCS). We find that slow FRs tend to align with the streams of slow solar wind in the inner heliosphere. During the solar cycle minimum the slow solar wind channel as well as the HCS usually occupy the area in the vicinity of the solar equatorial plane, which in the past led researchers to the hypothesis that FRs align with the HCS. Our results show that exclusions from this rule are explained by interaction with the Parker-spiralled background magnetic field, which dominates over the magnetic interaction with the HCS in the inner heliosphere at least during solar minimum conditions.
description: 19 pages, 7 figures, 1 table, accepted for publication in Solar Physics
Green's functions in quantum mechanics courses
Creators: name: Herrera, William J.
name: Vinck-Posada, Herbert
name: Paez, Shirley Gomez
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Green's functions in Physics have proven to be a valuable tool for understanding fundamental concepts in different branches, such as electrodynamics, solid-state and many -body problems. In quantum mechanics advanced courses, Green's functions usually are explained in the context of the scattering problem by a central force. However, their use for more basic problems is not often implemented. The present work introduces Green's Function in quantum mechanics courses with some examples that can be solved with essential tools. For this, the general aspects of the theory are shown, emphasizing the solution of different fundamental issues of quantum mechanics from this approach. In particular, we introduce the time-independent Green's functions and the Dyson equation to solve problems with an external potential. As examples, we show the scattering by a Dirac delta barrier, where the reflection and transmission coefficients are found. In addition, the infinite square potential well energy levels, and the local density of states, are calculated.
description: 8 pages, 5 figures
Thermodynamic analysis of solar powered trigeneration arrangementfor cooling, power and drinking water generation
Creators: name: Zoheb Ahmad
name: Anoop Kumar Shukla
name: Vishal Singh
name: Sharma, Meeta
name: Pranjal Kumar
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2022
Subjects: solar energy
parabolic trough collector
trigeneration
desalination
organic rankine cycle

description: Songklanakarin Journal of Science an Technology (SJST), 44, 6, 1419-1426