cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Graded extension of SO(2,1) Lie algebra and the search for exact solutions of Dirac equation by point canonical transformations
Creators: name: Alhaidari, A. D.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mathematical Physics (math-ph)
subject: Group Theory (math.GR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: SO(2,1) is the symmetry algebra for a class of three-parameter problems that includes the oscillator, Coulomb and Morse potentials as well as other problems at zero energy. All of the potentials in this class can be mapped into the oscillator potential by point canonical transformations. We call this class the "oscillator class". A nontrivial graded extension of SO(2,1) is defined and its realization by two-dimensional matrices of differential operators acting in spinor space is given. It turns out that this graded algebra is the supersymmetry algebra for a class of relativistic potentials that includes the Dirac-Oscillator, Dirac-Coulomb and Dirac-Morse potentials. This class is, in fact, the relativistic extension of the oscillator class. A new point canonical transformation, which is compatible with the relativistic problem, is formulated. It maps all of these relativistic potentials into the Dirac-Oscillator potential.
description: Replaced with a more potrable PDF version
Transfer of pyrrolizidine alkaloids from ragwort, common groundsel and viper’s bugloss to milk from dairy cows
Creators: name: Mulder, Patrick P.J.
name: Klijnstra, Mirjam D.
name: Goselink, Roselinde M.A.
name: Van Vuuren, Ad M.
name: Cone, John W.
name: Stoopen, Geert
name: Hoogenboom, Ron L.A.P.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Computational Biology

description: To investigate the transfer of pyrrolizidine alkaloids (PAs) from feed to milk, rumen-cannulated dairy cows were intra-ruminally fed with 200 g/day of dried plant material of either ragwort (mixture of Jacobaea vulgaris and Senecio inaequidens), common groundsel (Senecio vulgaris) or viper’s bugloss (Echium vulgare) for a period of 4 days. PA levels in the plant materials were 3767, 2792 and 1674 µg g−1 respectively. Feed intake, milk yield and several blood parameters indicative for liver function were not influenced by the treatment. When fed ragwort, increased levels of PAs were detected in the milk, in particular jacoline and an unidentified cyclic diester, possibly a hydroxylated metabolite from retrorsine. The latter was the most important PA in milk from cows fed common groundsel. For viper’s bugloss, echimidine was the most abundant identified PA but in addition several hydroxylated PA metabolites were detected. For ragwort, the overall PA transfer was estimated at 0.05% and 1.4% for jacoline (N-oxide). Transfer rates were similar for viper’s bugloss (0.05%) but lower for common groundsel (0.01%). Only a small portion of the administered PAs was quantified in milk, urine and faeces, with an overall balance of 4.5%, 2.9% and 5.8%, for ragwort, common groundsel and viper’s bugloss, respectively. Samples taken from the rumen indicated that the N-oxides were converted into the free bases, which was confirmed by in vitro studies with the same plant species incubated with ruminal fluid. These results confirm that the transfer of PAs to milk is relatively low but may be of concern for human health regarding the genotoxic and carcinogenic properties of these compounds. The transfer rate depends on the type of PAs present in the weeds. The incomplete balance of input vs output stresses the need to further investigate the metabolism and the potential transfer of metabolites into edible products.
Reconciliation of the Surface Brightness Fluctuations and Type Ia Supernovae Distance Scales
Creators: name: Ajhar, Edward A.
name: Tonry, John L.
name: Blakeslee, John P.
name: Riess, Adam G.
name: Schmidt, Brian P.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Hubble Space Telescope measurements of surface brightness fluctuations (SBF) distances to early-type galaxies that have hosted Type Ia supernovae (SNIa). The agreement in the relative SBF and SNIa multicolor light curve shape and delta-m_15 distances is excellent. There is no systematic scale error with distance, and previous work has shown that SBF and SNIa give consistent ties to the Hubble flow. However, we confirm a systematic offset of about 0.25 mag in the distance zero points of the two methods, and we trace this offset to their respective Cepheid calibrations. SBF has in the past been calibrated with Cepheid distances from the H_0 Key Project team, while SNIa have been calibrated with Cepheid distances from the team composed of Sandage, Saha, and collaborators. When the two methods are calibrated in a consistent way, their distances are in superb agreement. Until the conflict over the ``long'' and ``short'' extragalactic Cepheid distances among many galaxies is resolved, we cannot definitively constrain the Hubble constant to better than about 10%, even leaving aside the additional uncertainty in the distance to the Large Magellanic Cloud, common to both Cepheid scales. However, recent theoretical SBF predictions from stellar population models favor the Key Project Cepheid scale, while the theoretical SNIa calibration lies between the long and short scales. In addition, while the current SBF distance to M31/M32 is in good agreement with the RR Lyrae and red giant branch distances, calibrating SBF with the longer Cepheid scale would introduce a 0.3 mag offset with respect to the RR Lyrae scale.
description: 13 pages, 3 PostScript figures, LaTeX with AASTeX 5.02 and natbib.sty v7.0 (included). Accepted for publication in The Astrophysical Journal
An efficient shock-capturing central-type scheme for multidimensional relativistic flows. I. Hydrodynamics
Creators: name: Del Zanna, L.
name: Bucciantini, N.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Multidimensional shock-capturing numerical schemes for special relativistic hydrodynamics (RHD) are computationally more expensive than their correspondent Euler versions, due to the nonlinear relations between conservative and primitive variables and to the consequent complexity of the Jacobian matrices (needed for the spectral decomposition in most of the approximate Riemann solvers of common use). Here an efficient and easy-to-implement three-dimensional (3-D) shock-capturing scheme for ideal RHD is presented. Based on the algorithms developed by P. Londrillo and L. Del Zanna ({\em Astrophys. J.} 530, 508-524, 2000) for the non-relativistic magnetohydrodynamic (MHD) case, and having in mind its relativistic MHD extension (to appear in a forthcoming paper), the scheme uses high order (third) Convex Essentially Non-Oscillatory (CENO) finite difference interpolation routines and central-type averaged Riemann solvers, which do not make use of time-consuming characteristic decomposition. The scheme is very efficient and robust, and it gives results comparable to those obtained with more sophisticated algorithms, even in ultrarelativistic multidimensional test problems.
description: 11 pages, Latex, 9 Encapsulated PostScript figures, accepted for publication in A&A
Air Quality Prediction in Urban Environment Using IoT Sensor Data
Creators: name: Suryawanshi, Nikhil Sanjay
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 461199
subject: Machine learning not elsewhere classified
classificationCode: 461103
subject: Deep learning
classificationCode: 461104
subject: Neural networks

description: The increasing concern for environmental health has led to a heightened need for accurate air quality monitoring and prediction. This study presents a framework for predicting the Air Quality Index (AQI) using existing datasets rather than relying on real-time data from IoT sensors. The proposed system incorporates various machine learning algorithms, including Linear Regression, Neural Networks, and XGBoost, to analyze the relationships between air pollution indicators and AQI values. The methodology encompasses essential steps such as data preprocessing, normalization, and dividing the dataset into training and testing sets. Although the system has not yet been implemented, preliminary analyses indicate that the use of these models has the potential to yield reliable AQI predictions, which can significantly assist policymakers and public health officials in implementing effective air quality management strategies.
Total Factor Productivity Change in Dairy Production in Southern Chile: Is Farm Size Significant?
Creators: name: Moreira, Victor H.
name: Bravo-Ureta, Boris E.
name: Dunner, Roberto
name: Vidal, Ricardo
name: Moreira, Victor H.
name: Bravo-Ureta, Boris E.
name: Dunner, Roberto
name: Vidal, Ricardo
Publisher: name: Unknown
Year: 2012
Subjects: subject: Farm Management
subject: Production Economics
subject: Productivity Analysis
subject: total factor productivity
subject: stochastic frontiers
subject: dairy farm size

description: This paper examines the connection between total factor productivity change and dairy farm size in Southern Chile, a translog stochastic production frontier is estimated using an unbalanced panel for 2005-2009 including 417 farms and 1,186 observations. Descriptive analyses and econometric evidence indicate that the farms exhibit decreasing returns to size, productivity gains through technical efficiency or management improvements are limited while technological progress is rather low; thus, investments in research appear promising. Although the findings reveal that farm size is not associated with productivity growth, a clear positive association between farm size and net income is found.
Sustainable Research Software Hand-Over
Creators: name: Fehr, Jörg
name: Himpe, Christian
name: Rave, Stephan
name: Saak, Jens
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Literature (cs.GL)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: 68N30, 97N80, 97P99

description: Scientific software projects evolve rapidly in their initial development phase, yet at the end of a funding period, the completion of a research project, thesis, or publication, further engagement in the project may slow down or cease completely. To retain the invested effort for the sciences, this software needs to be preserved or handed over to a succeeding developer or team, such as the next generation of (PhD) students. Comparable guides provide top-down recommendations for project leads. This paper intends to be a bottom-up approach for sustainable hand-over processes from a developer's perspective. An important characteristic in this regard is the project's size, by which this guideline is structured. Furthermore, checklists are provided, which can serve as a practical guide for implementing the proposed measures.
Finding a “flower” in a “peanut” is as easy as in a “garden”: towards a lemma-based model of bilingual word recognition
Creators: name: Wang, Xin
name: Taft, Marcus
name: Wang, Jie
name: Kim, Say Young
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Science Policy

description: The present study investigates how morphological information is processed and represented in the bilingual lexicon. We employed a masked cross-language morphological priming paradigm to examine morphological decomposition and semantic transparency in bilingual lexical processing. A robust and reliable morphological priming effect was observed for both transparent compounds and opaque compounds, though there was a strong trend for more facilitation in the former than the latter. To account for these results, we propose a lemma-based bilingual model specifying the activation/competition between lemmas during cross-language activation at the morphological level. Our novel findings advance the understanding of interplay between morphology and bilingualism.
Occurrence of MCPD and glycidyl fatty acid esters in standard and specialised infant formula in Denmark
Creators: name: Nguyen, Khanh Hoang
name: Fromberg, Arvid
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Standard infant formula and specialised infant formula for medical purposes in Denmark (n = 42) were assessed for the levels of 2-MCPDEs, 3-MCPDEs, and GEs. Similar concentrations of GEs were observed in both standard and specialised powder infant formula at around 11.5 µg/kg. For 2-MCPDEs and 3-MCPDEs, significantly higher concentrations were observed in specialised products (18.0 and 49.8 µg/kg, respectively) in comparison with the standard ones (11.8 and 31.0 µg/kg, respectively). The concentration profiles also revealed discrepancies in MCPDEs and GEs concentrations not only between different manufacturers but also in terms of infant formula variety. For instance, the hypoallergenic powder formula showed twice as much MCPDEs as the normal formula variety. Exposure estimation using average contaminant concentrations in each variety suggested no potential risk of 3-MCPDEs and GEs intake for Danish infants via infant formula consumption. However, special attention is required for a few specific products where risks might occur in terms of 3-MCPDEs and/or GEs consumption.
title: Why Don’t They Use It: Barriers To the Utilisation of Digital Mental Health by Mental Health Professionals and Consumers
Creators: name: Ganapathy, Aarthi
Publisher: name: Griffith University
Year: 2024
Subjects: subject: mental health
subject: digital technologies
subject: psychometric measures

description: Digital mental health (DMH) refers to all mental health help delivered via digital platforms (Graham et al., 2019; Smith et al., 2023). It can be used as standalone self-help interventions or as an adjunct to traditional face-to-face therapy (Ganapathy et al., 2023). Websites, mobile applications (apps), virtual reality, augmented reality, and videoconferencing technologies are being used to deliver therapies, homework, and CBT modules, either with or without the support of a health professional. Today, DMH is a viable option for treating common mental health disorders (Andersson et al., 2019). With the widespread availability of the internet and people’s rising comfort in using digital technologies, mental health services can greatly benefit from incorporating digital solutions (Ganapathy et al., 2023). Some researchers argue that a well-developed DMH intervention may not even require the support of a mental health professional (MHP) (Morgan et al., 2017). Furthermore, large conglomerates (such as JP Morgan, Meta, Telstra Health) see this industry as a potential profit-making market. Given this context, it is critical that researchers and MHPs take the lead in implementing and adopting digital technologies in mental health service delivery. This will ensure that evidence based DMH practices are available to those who need care are provided under ethical standards. Post the Coronavirus Disease (COVID) pandemic, people’s comfort with using technology for health-related needs has only increased (Lattie et al., 2022; Torous et al., 2020), making the adoption of these interventions not just an option, but a necessity. The field of mental health stands to reap substantial benefits from digital technologies, including reaching a larger number of consumers, automating some services to save time and cost, and extending care to previously unreachable populations such as those in rural and remote areas or armed officials in war zones (Andersson & Titov, 2014; Reger et al., 2017; Tal & Torous, 2017). These arguments in support of DMH services have been presented for more than two decades. Adoption and implementation of evidence-based DMH practices are well underway, and recent years have seen increased efforts to understand the barriers to using DMH services (Adkins et al., 2017; Bengtsson et al., 2015; Breedvelt et al., 2019; Dodd et al., 2017; Feijt et al., 2018; Orlowski et al., 2016; Perry et al., 2019; Tlach et al., 2016). This PhD thesis sought to expand on the existing work regarding the barriers to DMH experienced by consumers and MHPs. [...]
A Correlation between Light Concentration and Cluster Local Density for Elliptical Galaxies
Creators: name: Trujillo, I.
name: Aguerri, J. A. L.
name: Gutierrez, C. M.
name: Caon, N.
name: Cepa, J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using photometric and redshift data for the Virgo and Coma clusters, we present evidence for a correlation between the light concentration of elliptical galaxies (including dwarf ellipticals) and the local 3-D (i.e. non-projected) density of the clusters: more concentrated ellipticals are located in denser regions. The null hypothesis (i.e. the absence of any relation) is rejected at a significance level better than 99.9%. In order to explain the observed relation, a power law relating the galaxy light concentration and the cluster 3-D density is proposed. We study how the projection effects affect the form and dispersion of the data-points in the light concentration-projected density diagram. The agreement between our model and the observed data suggests that there is a paucity of dwarf elliptical galaxies in the cluster central regions.
description: 7 pages, 2 figures, ApJL accepted
Determination of phthalate esters in breast milk before and after frozen storage in milk storage bags
Creators: name: Ji-Cai Fan
name: Ren, Ren
name: He, Hua-Li
name: Jin, Quan
name: Wang, Shu-Ting
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Plant Biology

description: This study describes the migration of 20 phthalates from breast milk storage bags to breast milk after storage frozen for 1 to 6 months. Analysis of the investigated phthalates was performed by GC-MS/MS. Nine phthalates were found in some of the 27 breast milk storage bags, six phthalates were detected in some of the 40 breast milk samples, but the concentrations were low, except for one sample, which contained dibutyl phthalate (DBP) at the level of 211.2 µg/kg. For most of the breast milk samples stored in breast milk storage bags, the migration of diisobutyl phthalate (DIBP), DBP and di-ethyl-hexyl phthalate (DEHP) increased with increasing storage time, but the migration of DBP and DEHP was lower than the migration limits of 300 µg/kg and 1500 µg/kg from the National Standards of the PRC even after storage for six months. The average daily intakes of DMP, DEP, DIBP, DBP and DEHP were 0.099, 0.39, 0.62, 2.89 and 1.13 µg/kg/d, respectively, and the hazard indices were far below 1.
A Characteristic Mass Scale in the Mass-Metallicity Relation of Galaxies
Creators: name: Blanc, Guillermo A.
name: Lu, Yu
name: Benson, Andrew
name: Katsianis, Antonios
name: Barraza, Marcelo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the shape of the gas-phase mass-metallicity relation (MZR) of a combined sample of present-day dwarf and high-mass star-forming galaxies using IZI, a Bayesian formalism for measuring chemical abundances presented in Blanc et al. 2015. We observe a characteristic stellar mass scale at $M_* \simeq 10^{9.5}$M$_{\odot}$, above which the ISM undergoes a sharp increase in its level of chemical enrichment. In the $10^{6}-10^{9.5}$M$_{\odot}$ range the MZR follows a shallow power-law ($Z\propto M^α_*$) with slope $α=0.14\pm0.08$. At approaching $M_* \simeq 10^{9.5}$M$_{\odot}$ the MZR steepens significantly, showing a slope of $α=0.37\pm0.08$ in the $10^{9.5}-10^{10.5}$M$_{\odot}$ range, and a flattening towards a constant metallicity at higher stellar masses. This behavior is qualitatively different from results in the literature that show a single power-law MZR towards the low mass end. We thoroughly explore systematic uncertainties in our measurement, and show that the shape of the MZR is not induced by sample selection, aperture effects, a changing N/O abundance, the adopted methodology used to construct the MZR, secondary dependencies on star formation activity, nor diffuse ionized gas (DIG) contamination, but rather on differences in the method used to measure abundances. High resolution hydrodynamical simulations can qualitatively reproduce our result, and suggest a transition in the ability of galaxies to retain their metals for stellar masses above this threshold. The MZR characteristic mass scale also coincides with a transition in the scale height and clumpiness of cold gas disks, and a typical gas fraction below which the efficiency of star formation feedback for driving outflows is expected to decrease sharply.
description: 24 pages, 11 figures, 4 tables, accepted for publication in ApJ
Inverse Statistics in Economics : The gain-loss asymmetry
Creators: name: Jensen, Mogens H.
name: Johansen, Anders
name: Simonsen, Ingve
Publisher: name: arXiv
Year: 2002
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Inverse statistics in economics is considered. We argue that the natural candidate for such statistics is the investment horizons distribution. This distribution of waiting times needed to achieve a predefined level of return is obtained from (often detrended) historic asset prices. Such a distribution typically goes through a maximum at a time called the {\em optimal investment horizon}, $τ^*_ρ$, since this defines the most likely waiting time for obtaining a given return $ρ$. By considering equal positive and negative levels of return, we report on a quantitative gain-loss asymmetry most pronounced for short horizons. It is argued that this asymmetry reflects the market dynamics and we speculate over the origin of this asymmetry.
description: Latex, 6 pages, 3 figures
Additional file 11 of The mechanism of sesame resistance against Macrophomina phaseolina was revealed via a comparison of transcriptomes of resistant and susceptible sesame genotypes
Creators: name: Yan, Wenqing
name: Ni, Yunxia
name: Liu, Xintao
name: Zhao, Hui
name: Chen, Yanhua
name: Jia, Min
name: Liu, Mingming
name: Liu, Hongyan
name: Tian, Baoming
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 11: Figure S6. Top 30 GO terms enriched function categories of 52 common DEGs between DR and DS.
Dindymus (Pseudodindymus) albicornis subsp. siberutensis Stehlík & Jindra 2008, subsp. nov.
Creators: name: Stehlík, Jaroslav L.
name: Jindra, Zdeněk
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pyrrhocoridae
Dindymus
Dindymus albicornis
Dindymus (pseudodindymus) albicornis siberutensis

description: Dindymus (Pseudodindymus) albicornis siberutensis subsp. nov.
 Type material. HOLOTYPE: J, INDONESIA: MENTAWAI ISLANDS: SIBERUT: Boiacan env., ix.2004, S. Jakl lgt. (PPUA). PARATYPES: the same locality, 9 JJ 4 ♀♀ (ZJPC); SIBERUT: Salappa env., 50-100 m a.s.l., iv.-v.2005, 3 JJ 5 ♀♀, S. Jakl lgt. (ZJPC). NIAS: no further data, 30.iv.1910, 1 ♀, no collector (MMBC).
 Description. Posterior pronotal margin with yellow stripe, not reaching posterior pronotal angles.
 Differential diagnosis. The nominotypical subspecies, D. (P.) a. albicornis (Fabricius, 1805), differs from D. (P.) a. siberutensis subsp. nov. only in the presence of two large median yellow spots on the posterior pronotal margin. Only two additional species of Dindymus, D. daiacus Breddin, 1901 (Philippines: Palawan) and D. sandakan Stehlík, in press (Malaysia: Sabah), have the posterior pronotal margin yellow. However, D. daiacus does not have the posterior part of corium red but pale yellow, and has black bases of femora and epicoxal lobes I and II. In D. sandakan the yellow stripe on the posterior pronotal margin is disproportionally smaller and the pronotum narrower at base (STEHLÍK, in press).
 Etymology. Patronymic, named after the Siberut Island.
 Distribution. Indonesia, Mentawai Islands, Siberut. The nominotypical subspecies D. (P.) a. albicornis occurs in Myanmar, southern Thailand, Malaysia (Melaka, Pahang, Sabah, Sarawak, Selangor), Indonesia (Sumatra, Java, Bali, Sulawesi, Timor) (STEHLÍK & JINDRA 2003; STEHLÍK, in press).
description: Published as part of Stehlík, Jaroslav L. & Jindra, Zdeněk, 2008, New taxa of the Largidae and Pyrrhocoridae (Hemiptera: Heteroptera) from the Oriental Region, pp. 611-648 in Acta Entomologica Musei Nationalis Pragae 48 (2) on pages 638-639, DOI: 10.5281/zenodo.5341841
Measuring global mean sea level changes with surface drifting buoys
Creators: name: Elipot, Shane
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Combining ocean model data and in-situ Lagrangian data, I show that an array of surface drifting buoys tracked by a Global Navigation Satellite System (GNSS), such as the Global Drifter Program, could provide estimates of global mean sea level (GMSL) and its changes, including linear decadal trends. For a sustained array of 1250 globally distributed buoys with a standardized design, I demonstrate that GMSL decadal linear trend estimates with an uncertainty less than 0.3 mm yr$^{-1}$ could be achieved with GNSS daily random error of 1.6 m or less in the vertical direction. This demonstration assumes that controlled vertical position measurements could be acquired from drifting buoys, which is yet to be demonstrated. Development and implementation of such measurements could ultimately provide an independent and resilient observational system to infer natural and anthropogenic sea level changes, augmenting the on-going tide gauge and satellites records.
description: resubmitted to AGU Geophysical Research Letters
Scattering phase shift for relativistic exponential-type separable potentials
Creators: name: Alhaidari, A. D.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The J-matrix method of scattering is used to obtain analytic expressions for the phase shift of two classes of relativistic exponential-type separable potentials whose radial component is either of the general form r^(n-1)exp(-r) or r^(2n)exp(-r^2), where n = 0, 1, or 2. The rank of these separable potentials is n + 1. The nonrelativistic limit is obtained and shown to be identical to the nonrelativistic phase shift. An exact numerical evaluation for higher order potentials (n > 2) can also be obtained in a simple way as illustrated for the case n = 3.
description: Accepted for publication in J. Phys. A, to appear in January 2002. Replaced with a more portable PDF version
Chemistry as a probe of the structures and evolution of massive star forming regions
Creators: name: Doty, S. D.
name: van Dishoeck, E. F.
name: van der Tak, F. F. S.
name: Boonman, A. M. S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present detailed thermal and gas-phase chemical models for the envelope of the massive star-forming region AFGL 2591. Time- and space-dependent chemistry are used to study the physical structure proposed by van der Tak et al. (1999; 2000), and the chemical evolution of this region. The model is compared with observations for 29 species covering a wide range of conditions within the source. Taking appropriate care when comparing models with both emission and absorption measurements, we find that the majority of the chemical structure can be well-explained. In particular, we find that the nitrogen and hydrocarbon chemistry can be significantly affected by temperature, with the possibility of high-temperature pathways to HCN. While we cannot determine the sulphur reservoir, the observations can be explained by models with the majority of the sulphur in CS in the cold gas, SO$_{2}$ in the warm gas, and atomic sulphur in the warmest gas. The observed abundances of ions such as HCO$^+$ and N$_2$H$^+$ and the cold gas-phase production of HCN constrain the cosmic-ray ionization rate to $\sim 5.6 \times 10^{-17}$ s$^{-1}$, to within a factor of three. Finally, we find that the model and observations can simultaneously agree at a reasonable level and often to within a factor of three for $7 \times 10^{3} \leq t(\mathrm{yrs}) \leq 5 \times 10^{4}$, with a strong preference for $t \sim 3 \times 10^{4}$ yrs since the collapse and formation of the central luminosity source.
description: 18 pages, 16 figures
Terpenes and lignans from the roots of Solanum melongena L.
Creators: name: Yang, Bing-You
name: Yin, Xin
name: Liu, Yan
name: Sun, Yan
name: Guan, Wei
name: Zhou, Yuan-Yuan
name: Kuang, Hai-Xue
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Phytochemical investigation of the roots of Solanum melongena L. resulted in the isolation of ten terpenes and sixteen lignans, including a new triterpene saponin, officinoterpenoside E (1) and twenty-five known compounds (2-26). All compounds were firstly isolated from S. melongena except 2, 13, 21, 22. The structures of these compounds were determined by 1 D and 2 D NMR spectra referring to the literatures, together with high-resolution mass spectrometric analysis. All compounds were evaluated for the cytotoxicity against three cancer cell lines (HepG2, Hela, and MCF-7) in vitro. The results showed that compounds 1, 6, 20, 25 and 26 exhibited moderate cytotoxicity against HepG2, Hela and MCF-7 cells with IC50 values in the range of 16.8 ± 1.7 to 29.1 ± 1.9 μM. Therefore, these terpenoids and lignans may have potential biological activity, and also seemed to be of great chemotaxonomic value for S. melongena.
Resonant $a_0(980)$ state in triangle rescattering $D_s^+\to π^+π^0η$ decays
Creators: name: Hsiao, Y. K.
name: Yu, Yao
name: Ke, Bai-Cian
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the $D_s^+\to π^+(a_0(980)^0\to)π^0η$, $π^0(a_0(980)^+\to)π^+η$ decays, which have been recently measured by the BESIII collaboration. We propose that $D_s^+\to π^{+(0)}(a_0(980)^{0(+)}\to)π^{0(+)}η$ receives the contributions from the triangle rescattering processes, where $M^0$ and $ρ^+$ in $D_s^+\to M^0 ρ^+$, by exchanging $π^{0(+)}$, are formed as $a_0(980)^{0(+)}$ and $π^{+(0)}$, respectively, with $M^0=(η,η')$. Accordingly, we calculate that ${\cal B}(D_s^+\to a_0(980)^{0(+)}π^{+(0)})=(1.7\pm 0.2\pm 0.1)\times 10^{-2}$ and ${\cal B}(D_s^+\to π^{+(0)}(a_0(980)^{0(+)}\to)π^{0(+)}η)=(1.4\pm 0.1\pm 0.1)\times 10^{-2}$, being consistent with the data.
description: Title changed, 9 pages, 5 diagrams, version published in EPJC
Fast optical absorption spectra calculations for periodic solid state systems
Creators: name: Henneke, F.
name: Lin, L.
name: Vorwerk, C.
name: Draxl, C.
name: Klein, R.
name: Yang, C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: 65F15, 65Z05

description: We present a method to construct an efficient approximation to the bare exchange and screened direct interaction kernels of the Bethe-Salpeter Hamiltonian for periodic solid state systems via the interpolative separable density fitting technique. We show that the cost of constructing the approximate Bethe-Salpeter Hamiltonian scales nearly optimally as $\mathcal{O}(N_k)$ with respect to the number of samples in the Brillouin zone $N_k$. In addition, we show that the cost for applying the Bethe-Salpeter Hamiltonian to a vector scales as $\mathcal{O}(N_k \log N_k)$. Therefore the optical absorption spectrum, as well as selected excitation energies can be efficiently computed via iterative methods such as the Lanczos method. This is a significant reduction from the $\mathcal{O}(N_k^2)$ and $\mathcal{O}(N_k^3)$ scaling associated with a brute force approach for constructing the Hamiltonian and diagonalizing the Hamiltonian respectively. We demonstrate the efficiency and accuracy of this approach with both one-dimensional model problems and three-dimensional real materials (graphene and diamond). For the diamond system with $N_k=2197$, it takes $6$ hours to assemble the Bethe-Salpeter Hamiltonian and $4$ hours to fully diagonalize the Hamiltonian using $169$ cores when the brute force approach is used. The new method takes less than $3$ minutes to set up the Hamiltonian and $24$ minutes to compute the absorption spectrum on a single core.
Additional file 10 of The mechanism of sesame resistance against Macrophomina phaseolina was revealed via a comparison of transcriptomes of resistant and susceptible sesame genotypes
Creators: name: Yan, Wenqing
name: Ni, Yunxia
name: Liu, Xintao
name: Zhao, Hui
name: Chen, Yanhua
name: Jia, Min
name: Liu, Mingming
name: Liu, Hongyan
name: Tian, Baoming
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 10: Figure S5. Top 30 GO terms enriched function categories of DEGs between DR and DS before-innoculation (0 h).
Pre-Existing Superbubbles as the Sites of Gamma-Ray Bursts
Creators: name: Scalo, John
name: Wheeler, J. Craig
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: According to recent models, gamma-ray bursts apparently explode in a wide variety of ambient densities ranging from ~ 10^{-3} to 30 cm^{-3}. The lowest density environments seem, at first sight, to be incompatible with bursts in or near molecular clouds or with dense stellar winds and hence with the association of gamma-ray bursts with massive stars. We argue that low ambient density regions naturally exist in areas of active star formation as the interiors of superbubbles. The evolution of the interior bubble density as a function of time for different assumptions about the evaporative or hydrodynamical mass loading of the bubble interior is discussed. We present a number of reasons why there should exist a large range of inferred afterglow ambient densities whether gamma-ray bursts arise in massive stars or some version of compact star coalescence. We predict that many gamma-ray bursts will be identified with X-ray bright regions of galaxies, corresponding to superbubbles, rather than with blue localized regions of star formation. Massive star progenitors are expected to have their own circumstellar winds. The lack of evidence for individual stellar winds associated with the progenitor stars for the cases with afterglows in especially low density environments may imply low wind densities and hence low mass loss rates combined with high velocities. If gamma-ray bursts are associated with massive stars, this combination might be expected for compact progenitors with atmospheres dominated by carbon, oxygen or heavier elements, that is, progenitors resembling Type Ic supernovae.
description: 14 pages, no figures, submitted to The Astrophysical Journal
Damping of coupled phonon--plasmon modes
Creators: name: Falkovsky, L. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The effect of free carriers on dispersion and damping of coupled phonon-plasmon modes is considered in the long-wave approximation. The electron and phonon scattering rate as well as Landau damping are taken into account.
description: 9 pages,8 figures,to be published in JETP
Mycotoxins in cereals and pulses harvested in Latvia by nanoLC-Orbitrap MS
Creators: name: Reinholds, Ingars
name: Martins Jansons
name: Fedorenko, Deniss
name: Pugajeva, Iveta
name: Zute, Sanita
name: Bartkiene, Elena
name: Bartkevics, Vadims
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Hematology
subject: Plant Biology
subject: 60506 Virology

description: Twenty-seven mycotoxins in unprocessed cereals (n = 110) and pulses (n = 23) harvested in Latvia were analysed by nanoflow liquid chromatography combined with Orbitrap high-resolution mass spectrometry. One or more mycotoxins were found in 99% of the cereals and 78% of the pulses. Deoxynivalenol, zearalenone and T-2 and HT-2 toxins were prevalent in 9 to 86% of the cereals, mostly below their maximum levels as set by the European regulations. Non-regulated type A and B trichothecenes were prevalent in 5 to 87% of the cereals, at concentrations of 0.27–83 µg kg−1 and 1.7–4,781 µg kg−1, respectively. Quantification of emerging mycotoxins was also provided. Enniatins were detected in 94% of the cereals (3.5–2,073 µg kg−1) and 13% of the pulses (4.4–17 µg kg−1). Alternaria toxins were prevalent in 94% of the cereals at concentrations of 0.72–307 µg kg−1 and in 39% of the pulses at 0.69–10 µg kg−1.
Aporinellus Banks 1912
Creators: name: Waichert, Cecilia
name: Rodriguez, Juanita
name: Von Dohlen, Carol D.
name: Pitts, James P.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pompilidae
Aporinellus

description: Aporinellus Banks, 1912
 Type species Aporus fasciatus Smith, 1855, by original designation.
 Remarks. The genus has four Neotropical species, from which only one is recorded for the Caribbean (Fernández 2000). This is the first record of Aporinellus for the Dominican Republic.
description: Published as part of Waichert, Cecilia, Rodriguez, Juanita, Von Dohlen, Carol D. & Pitts, James P., 2012, Spider wasps (Hymenoptera: Pompilidae) of the Dominican Republic, pp. 1-47 in Zootaxa 3353 (1) on page 27, DOI: 10.11646/zootaxa.3353.1.1, http://zenodo.org/record/5251730
Food Subsidies and Nutritional Status: Evidence from ICRISAT Data
Creators: name: Bhagowalia, Priya
name: Chandna, Arjita
name: Bhagowalia, Priya
name: Chandna, Arjita
Publisher: name: Unknown
Year: 2016
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: International Development
subject: Food Subsidy
subject: nutrition
subject: calorie
subject: ICRISAT

description: This paper attempts to assess if provision of subsidized food via India’s largest safety net, the Targeted Public Distribution System (TPDS), has improved calorie availability in dry land areas of India. Changes in relative prices may increase calorie intakes from the subsidized commodities, or induce a substitution away from inexpensive and calorie rich foods to more expensive foods. We use ICRISAT data from 2010-2012 to examine the impact of rice & wheat subsidies on calorie availability and compare it with equivalent increases in income from any other source. Our results suggest that food subsidies have a modest but positive impact on calorie intakes of households, but these differ by income group. Due to the subsidy, households increase calories from both subsidized and expensive sources of calories viz. meat, sugar and oils. Crop production affects calorie availability. We also find that that the in-kind transfer seems to be less effective than equivalent increases in income
Aromatic compounds from Endocomia macrocoma
Creators: name: Kuang, Fang
name: Liu, Ying
name: Chen, Ye-Gao
name: Zhan, Rui
Publisher: name: Taylor & Francis
Year: 2019
Subjects: Biochemistry
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Twenty-seven compounds, including a new diarypropane and two new lignans were isolated from the twigs and leaves of Endocomia macrocoma. Their structures were elucidated by spectroscopic analysis. Cytotoxicity evaluation of the new compounds against five human tumor lines showed no inhibitory effects.
Two parameter deformation of Grassmann matrix group and supergroup
Creators: name: Celik, Salih
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B37

description: The two parameter quantum deformation of 2x2 Grassmann matrices, Gr(2), and supermatrices, Gr$(1| 1)$, are presented. Gr(2) whose matrix elements are all Grassmannian variables is called the superdual of the genel linear group GL(2), and Gr$(1| 1)$ whose diagonal matrix elements are Grassmannian variables is called the superdual of the supergroup GL$(1| 1)$ whose nondiagonal elements are Grassmannian. Noncentral dual superdeterminant for Grassmann supermatrices belonging to Gr$_{p,q}(1| 1)$ is constructed. As with the 2x2 quantum matrices, the relations satisfied by the matrix elements of the Grassmann matrices are expressed in terms of an $\hat{R}$-matrix. The properties of $n$th power of a Grassmann supermatrix are given as an Appendix.
description: 10 pages
Semantic and Cognitive Tools to Aid Statistical Science: Replace Confidence and Significance by Compatibility and Surprise
Creators: name: Rafi, Zad
name: Greenland, Sander
Publisher: name: arXiv
Year: 2019
Subjects: subject: Methodology (stat.ME)
subject: Quantitative Methods (q-bio.QM)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Researchers often misinterpret and misrepresent statistical outputs. This abuse has led to a large literature on modification or replacement of testing thresholds and $P$-values with confidence intervals, Bayes factors, and other devices. Because the core problems appear cognitive rather than statistical, we review simple aids to statistical interpretations. These aids emphasize logical and information concepts over probability, and thus may be more robust to common misinterpretations than are traditional descriptions. We use the Shannon transform of the $P$-value $p$, also known as the binary surprisal or $S$-value $s=-\log_{2}(p)$, to measure the information supplied by the testing procedure, and to help calibrate intuitions against simple physical experiments like coin tossing. We also use tables or graphs of test statistics for alternative hypotheses, and interval estimates for different percentile levels, to thwart fallacies arising from arbitrary dichotomies. Finally, we reinterpret $P$-values and interval estimates in unconditional terms, which describe compatibility of data with the entire set of analysis assumptions. We illustrate these methods with a reanalysis of data from an existing record-based cohort study. In line with other recent recommendations, we advise that teaching materials and research reports discuss $P$-values as measures of compatibility rather than significance, compute $P$-values for alternative hypotheses whenever they are computed for null hypotheses, and interpret interval estimates as showing values of high compatibility with data, rather than regions of confidence. Our recommendations emphasize cognitive devices for displaying the compatibility of the observed data with various hypotheses of interest, rather than focusing on single hypothesis tests or interval estimates. We believe these simple reforms are well worth the minor effort they require.
description: 22 pages; 5 figures; 2 tables; 94 references; Published at BMC Medical Research Methodology
Ectatops subjectus Walker 1873
Creators: name: Stehlík, Jaroslav L.
name: Jindra, Zdeněk
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Ectatops
Ectatops subjectus

description: Ectatops subjectus Walker, 1873
 (Figs. 45, 49) Material examined. INDONESIA: SULAWESI: SULAWESI TENGAH PROVINCE: Lindu National Park, Palu Palolo, 25.- 27.viii.1990, 2 JJ 2♀♀, A. Riedel leg. (ZSMC). SULAWESI TENGGARA PROVINCE: Butong Island, South Lasalimu region, vii.2006, 2 JJ 6 ♀♀, local collector (ZJPC).
 Variability. STEHLÍK & JINDRA (2006b) mentioned that the colouration of this species is rather variable; this variability was described based on specimens from Palu Palolo. On the other hand, the newly collected specimens from Butong Island have a uniform colouration, very similar to both E. sulawesiensis and E. riedeli sp. nov.
 Distribution. So far known only from the main island of Sulawesi. First record for the Butong Island.
description: Published as part of Stehlík, Jaroslav L. & Jindra, Zdeněk, 2008, New taxa of the Largidae and Pyrrhocoridae (Hemiptera: Heteroptera) from the Oriental Region, pp. 611-648 in Acta Entomologica Musei Nationalis Pragae 48 (2) on page 646, DOI: 10.5281/zenodo.5341841
Visible-IR Colors and Lightcurve Analysis of Two Bright TNOs: 1999 TC36 and 1998 SN165
Creators: name: Peixinho, N.
name: Doressoundiram, A.
name: Romon-Martin, J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on observations of two bright Trans-Neptunian Objects (TNOs) - 1999 TC36 and 1998 SN165}- during two observational campaigns, as part of the Meudon Multicolor Survey of Outer Solar System Objects. V-J color was measured for 1999 TC36 (V-J=2.34+/-0.18), which combined with previous measured colors in the visible, indicate a red reflectivity spectrum at all wavelengths. Photometric V-band lightcurves were taken for both objects over a time span of around 8 hours. We have determined a possible rotational period of P=10.1+/-0.8 h for 1998 SN165, making it the seventh TNO with an estimated period. From its lightcurve variation of Dm=0.151(+0.022/-0.030), we have inferred an asymmetry ratio of a/b >=1.148(+0.024/-0.031). For 1999 TC36, we did not detect any rotational period or periodic signal variation within the uncertainties, but the analysis of its lightcurve hints to a slight systematic magnitude decrease.
description: Accepted for publication in New Astronomy (13 pages, inc. 4 figures)