cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inhibition of transforming growth factor-beta by Tranilast reduces tumor growth and ameliorates fibrosis in colorectal cancer
Creators: name: Hashemzehi, Milad
name: Yavari, Negar
name: Rahmani, Farzad
name: Asgharzadeh, Fereshteh
name: Soleimani, Atena
name: Shakour, Neda
name: Avan, Amir
name: Hadizadeh, Farzin
name: Fakhraie, Maryam
name: Moradi Marjaneh, Reyhaneh
name: Ferns, Gordon A.
name: Reisi, Parham
name: Ryzhikov, Mikhail
name: Khazaei, Majid
name: Hassanian, Seyed Mahdi
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2021
Subjects: colon cancer
Tranilast
TGF pathway
angiogenesis
fibrosis

description: Transforming Growth Factor-beta (TGF-β) is dysregulated in colorectal cancer and there is growing evidence that it is associated with a poor prognosis and chemo-resistance in several malignances, including CRC. In this study we have explored the therapeutic potential of targeting TGF-β using Tranilast in colon cancer. The anti-proliferative activity of Tranilast was evaluated in 2- and 3-dimensional cells. We used a xenograft model of colon cancer to investigate the activity of Tranilast alone or in combination with 5-FU on tumor growth using histological staining and biochemical studies, as well as gene expression analyses using RT-PCR and Western blotting. Tranilast alone or in combination with 5-FU inhibited tumor growth and was associated with a reduction of TGF-β expression and CD31 positive endothelial cells. Histological evaluation showed that Tranilast increased tumor necrosis and reduced tumor density and angiogenesis. Tranilast increased MDA and ROS production. It was also found that Tranilast reduced total thiol concentration and reduced SOD and catalase activity. Tranilast plus 5-FU was also found to attenuate collagen deposition, reducing tumor fibrosis in tumor xenografts. Our results show that Tranilast, a TGF inhibitor, in combination with 5-FU reduces tumor growth by inhibiting fibrosis and inducting ROS, thus supporting this therapeutic approach in CRC treatment.
description: EXCLI Journal; 20:Doc601; ISSN 1611-2156
Singlet-Doublet Majorana Dark Matter and Neutrino Mass in a minimal Type-I Seesaw Scenario
Creators: name: Dutta, Manoranjan
name: Bhattacharya, Subhaditya
name: Ghosh, Purusottam
name: Sahu, Narendra
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a bid to simultaneous explanation of dark matter (DM) and tiny but non-zero masses of left-handed neutrinos, we propose a minimal extension of the Standard Model (SM) by a vector-like fermion doublet and three right handed (RH) singlet neutrinos. The DM arises as a mixture of the neutral component of the fermion doublet and one of the RH neutrinos, both assumed to be odd under an additional $\mathcal{Z}_2$ symmetry. As a result, the DM emerges to be a dominantly Majorana particle and escapes from $Z$-mediated direct search constraints to mark a significant difference from singlet-doublet Dirac DM. The other two $\mathcal{Z}_2$ even heavy RH neutrinos give rise masses and mixing of light neutrinos via Type-I Seesaw mechanism. The particle content automatically allows us to extend the model by a gauged $U(1)_{B-L}$ symmetry, which is anomaly free and brings an additional portal between DM and SM particles. Relic density and direct search allowed parameter space for both the cases are investigated through detailed numerical scan, while collider search strategies are also indicated.
description: 49 pages, 25 figures, 4 tables, new references and figures added. Version accepted for publication in JCAP
Modal Filtering for Nulling Interferometry-First Single-Mode Conductive Waveguides in the Mid-Infrared
Creators: name: Labadie, L.
name: Labeye, P.
name: Kern, P.
name: Schanen, I.
name: Arezki, B.
name: Broquin, J. -E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents the work achieved for the manufacturing and characterization of first single-mode waveguides to be used as modal filters for nulling interferometry in the mid-infrared range [4-20 um]. As very high dynamic range is mandatory for detection of Earth-like planets, modal filtering is one of the most stringent instrumental aspects. The hollow metallic waveguides (HMW) presented here are manufactured using micro-machining techniques. Single-mode behavior has been investigated in laboratory through a technique of polarization analysis while transmission features have been measured using flux relative comparison. The single-mode behavior have been assessed at lambda=10.6 um for rectangular waveguides with dimensions a=10 um and b<5.3 um with an accuracy of ~2.5 %. The tests have shown that a single-polarization state can be maintained in the waveguide. A comparison with results on multi-mode HMW is proposed. Excess losses of 2.4 dB (~ 58 % transmission) have been measured for a single-mode waveguide. In particular, the importance of coupling conditions into the waveguide is emphasized here. The goal of manufacturing and characterizing the first single-mode HMW for the mid-infrared has been achieved. This opens the road to the use of integrated optics for interferometry in the mentioned spectral range.
description: 10 pages, 6 figures, accepted in A&A
มหากปิชาตกมฺ (Mahakapi-jatakam): ลักษณะเนื้อหาและคุณค่าทางวรรณศิลป์
Creators: name: สุภาพร พลายเล็ก
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2015
Subjects: -

description: วรรณวิทัศน์, 15, พิเศษ, 122-176
An Evaluation of Market Characteristics of Indiana Farmers' Markets
Creators: name: Hofmann, Christa
name: Dennis, Jennifer H.
name: Marshall, Maria I.
name: Hofmann, Christa
name: Dennis, Jennifer H.
name: Marshall, Maria I.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Institutional and Behavioral Economics
subject: Marketing
subject: FOS: Economics and business

description: Nationally, the number of operating farmers' markets has increased 111% in the past ten years from 1,755 markets to 3,706 from 1994 to 2004 (AMS, 2006). Indiana's farmers' markets has increased at double the rate in the same time frame. An internet and mail census was sent to market masters to assess operational procedures and factors that influence customer and vendor participation in the market. A two-stage least squares model was estimated for the vendor and customer model. In Equation 1.1, paying fees and the number of customers present were the two variables that had a significant, positive influence on vendor participation. In Equation 1.2, the presence of WIC, number of products available, the absence or presence of live music, absence or presence of cooking demonstrations, and reason 2 (vendors), were significant for the customer model at the 0.01 level. The absence or presence of concession stands and picnic areas were significant at the 0.10 level in the customer model.
วิถีแห่งมหาบุรุษ: การศึกษาชีวประวัติศาสดาตามแนวคิดการเดินทางของวีรบุรุษภาพยนตร์
Creators: name: ประเสริฐ รุนรา
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2015
Subjects: -

description: วรรณวิทัศน์, 15, พิเศษ, 237-271
Unzipping an adsorbed polymer in a dirty or random environment
Creators: name: Kapri, Rajeev
name: Bhattacharjee, Somendra M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The phase diagram of unzipping of an adsorbed directed polymer in two dimensions in a random medium has been determined. Both the hard-wall and the soft-wall cases are considered. Exact solutions for the pure problem with different affinities on the two sides are given. The results obtained by the numerical procedure adopted here are shown to agree with the exact results for the pure case. The characteristic exponents for unzipping for the random problem are different from the pure case. The distribution functions for the unzipped length, first bubble, and the spacer are determined.
description: Published version, uses revtex4, 14 pages
Deep-Learning-Enabled Inverse Engineering of Multi-Wavelength Invisibility-to-Superscattering Switching with Phase-Change Materials
Creators: name: Luo, Jie
name: Li, Xun
name: Zhang, Xinyuan
name: Guo, Jiajie
name: Liu, Wei
name: Lai, Yun
name: Zhan, Yaohui
name: Huang, Min
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Inverse design of nanoparticles for desired scattering spectra and dynamic switching between the two opposite scattering anomalies, i.e. superscattering and invisibility, is important in realizing cloaking, sensing and functional devices. However, traditionally the design process is quite complicated, which involves complex structures with many choices of synthetic constituents and dispersions. Here, we demonstrate that a well-trained deep-learning neural network can handle these issues efficiently, which can not only forwardly predict scattering spectra of multilayer nanoparticles with high precision, but also inversely design the required structural and material parameters efficiently. Moreover, we show that the neural network is capable of finding out multi-wavelength invisibility-to-superscattering switching points at the desired wavelengths in multilayer nanoparticles composed of metals and phase-change materials. Our work provides a useful solution of deep learning for inverse design of nanoparticles with dynamic scattering spectra by using phase-change materials.
D4.5 Semantic services for AGRICORE
Creators: name: STAM srl
name: Idener AI
name: Università degli studi di Parma
Publisher: name: Zenodo
Year: 2022
Subjects: AGRICORE H2020

description: This document explains the research and the development process for the Semantic Service Module for the AGRICORE project. Semantic Technology uses formal semantics to give meaning to the disparate data that surrounds us. Together with Linked Data technology, it builds relationships between data in various formats and sources, from one string to another, helping create context. Interlinked in this way, these pieces of raw data form a giant web of data or a knowledge graph, which connects a vast number of descriptions of entities and concepts of general importance (Ontology). Semantic Technology finally defines and links data by developing languages to express rich, self-describing interrelations of data in a form that machines can process. Thus, machines are not only able to process long strings of characters and index tons of data. They are also able to store, manage and retrieve information based on meaning and logical relationships. These concepts have been utilized to develop a dedicated module that enables users to query the ARDIT tool with natural language questions
Gravitational Effects of Varying Alpha Strings
Creators: name: Menezes, J.
name: Avelino, P. P.
name: Santos, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study spatial variations of the fine-structure constant in the presence of static straight cosmic strings in the weak-field approximation in Einstein gravity. We work in the context of a generic Bekenstein-type model and consider a gauge kinetic function linear in the scalar field. We determine an analytical form for the scalar field and the string metric at large distances from the core. We show that the gravitational effects of $α$-varying strings can be seen as a combination of the gravitational effects of global and local strings. We also verify that at large distances to the core the space-time metric is similar to that of a global string. We study the motion of test particles approaching from infinity and show that photons are scattered to infinity while massive particles are trapped in bounded trajectories. We also calculate an overall limit on the magnitude of the variation of $α$ for a GUT string, by considering suitable cosmological constraints coming from the Equivalence Principle.
description: 8 pages, 2 figures, to be published in Int. Journ. of Mod. Phys. A
Factors Influencing Artisanal Fisherfolks' Level of Support for Fishery Regulations: An Approach Using Alternative Ordered Logit Models
Creators: name: Garcia, Alexis Arthur B.
name: Rejesus, Roderick M.
name: Genio, Emmanuel L.
name: Garcia, Alexis Arthur B.
name: Rejesus, Roderick M.
name: Genio, Emmanuel L.
Publisher: name: Unknown
Year: 2008
Subjects: Research Methods/ Statistical Methods
Resource /Energy Economics and Policy

description: This article examines factors influencing fishers' decision to support fishery regulations in coastal communities in the Philippines. Using the partial proportional odds variant of the ordered logit model, we show that higher education levels, implementation of regulatory ordinances, and the effectiveness of law enforcement significantly affect the likelihood of supporting fishery regulations in coastal communities.
Diamonds of finite type in thin Lie algebras
Creators: name: Mattarei, Sandro
name: Avitabile, Marina
Publisher: name: arXiv
Year: 2005
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B50; 17B70, 17B56, 17B65

description: Borrowing some terminology from pro-p groups, thin Lie algebras are N-graded Lie algebras of width two and obliquity zero, generated in degree one. In particular, their homogeneous components have degree one or two, and they are termed diamonds in the latter case. In one of the two main subclasses of thin Lie algebras the earliest diamond after that in degree one occurs in degree 2q-1, where q is a power of the characteristic. This paper is a contribution to a classification project of this subclass of thin Lie algebras. Specifically, we prove that, under certain technical assumptions, the degree of the earliest diamond of finite type in such a Lie algebra can only have a certain form, which does occur in explicit examples constructed elsewhere.
description: 19 pages
Transcription of file 025_A (collection LA 256)
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-200716-06: transcription of file 025_A (tape 25, side A) from LA 256 (collection of recordings given to the Berkeley Language Center by Verdena), from 2:56 to 6:00. Due to re-numbering, tape 025_A has been assigned to the CLA item number LA256.025, audio file LA256.025A.
Non-linearly ghost-free higher curvature gravity
Creators: name: Aoki, Katsuki
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We find unitary and local theories of higher curvature gravity in the vielbein formalism, known as the Poincaré gauge theory by utilizing the equivalence to the ghost-free massive bigravity. We especially focus on three and four dimensions but extensions into a higher dimensional spacetime are straightforward. In three dimensions, a quadratic gravity $\mathcal{L}=R+T^2+R^2$, where $R$ is the curvature and $T$ is the torsion with indices omitted, is shown to be equivalent to zwei-dreibein gravity and free from the ghost at fully non-linear orders. In a special limit, new massive gravity is recovered. When the model is applied to the AdS/CFT correspondence, unitarity both in the bulk theory and in the boundary theory implies that the torsion must not vanish. On the other hand, in four dimensions, the absence of ghost at non-linear orders requires an infinite number of higher curvature terms, and these terms can be given by a schematic form $R(1+R/αm^2)^{-1}R$ where $m$ is the mass of the massive spin-2 mode originating from the higher curvature terms and $α$ is an additional parameter that determines the amplitude of the torsion. We also provide another four-dimensional ghost-free higher curvature theory that contains a massive spin-0 mode as well as the massive spin-2 mode.
description: 14 pages, no figure, published version
Data from: Eurasian wanderer: An island sabertoothed cat (Felidae, Machairodontinae) in the Far East
Creators: name: Tsai, Cheng-Hsiu
name: Tseng, Zhijie Jack
Publisher: name: Zenodo
Year: 2022

description: Machairodontinae, including the famous Smilodon and Homotherium, was an iconic Pleistocene carnivore lineage that occupied a critical ecological paleo-niche and is thought to have had a profound impact on Ice Age ecosystem structure. Recent ancient molecular studies on Homotherium suggest a wider distribution than inferred from the fossil record, highlighting a need for additional fieldwork, fossil collection, and research in understudied geographic regions. After the original publication 80 years ago that identified a Pleistocene carnivoran fossil as Felis sp. in Taiwan, here we revise its identification and demonstrate the presence of the large machairodontine cat, cf. Homotherium sp., in the Pleistocene of Taiwan, suggesting the easternmost occurrence of this lineage in Eurasia. Our results also exemplify the importance of fossil curation and in-depth research to reveal regional hidden diversity and lost ecosystem structure for understanding faunal turnover and the origin of modern biodiversity.
description: Funding provided by: Ministry of Science and Technology, Taiwan
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100004663
Award Number: MOST 108-2621-B-002-006-MY3
The modulation of the activity of intracellular pH regulating mechanisms by second messenger systems in rat hippocampal CA1 neurons
Creators: name: Brett, Christopher L.
Publisher: name: University of British Columbia
Year: 2009

description: The effects of modulating the activities of the cAMP/cAMP-activated protein kinase (PICA) and calmodulin (CaM)/Ca²⁺-CaM activated protein kinase II (CaMK-II) second messenger systems on steady-state (SS) intracellular pH (pH[sub i]) and on rates of pH[sub i] recovery following imposed acid and/or alkaline loads were investigated in acutely dissociated adult rat hippocampal CA1 neurons loaded with the fluorescent hydrogen ion indicator 2',7'-bis-(2- carboxyethyl)-5(6)-carboxyfluorescein. Alkali extrusion under HC03⁻/C0₂-buffered conditions was dependent on the activity of a 4,4'-diisothiocyanatostilbene-2,2'-disulphonate (DIDS)-sensitive, Na⁺-independent HC0₃⁻/Ci⁻ exchanger (NIAE). Acting in concert with an acid-extruding Na⁺-dependent HC0₃⁻/Ci⁻ exchanger (NDAE) and a Na⁺/H⁺-exchanger (NHE), the NIAE functioned to maintain SS pH[sub i] near the external pH value. Under HC03⁻-free conditions, stimulation of cAMP/PKA increased both SS pH[sub i] and rates of pH[sub i] recovery from imposed acid loads. The increases in SS pH[sub i] were enhanced by protein phosphatase inhibition, unaffected by changes in intracellular free calcium ([Ca²⁺][sub i]), and dependent on the presence of external Na⁺ . These results indicate that stimulating cAMP/PKA activates the NHE in rat hippocampal neurons. Conversely, inhibition of cAMP/PKA failed to affect NHE activity. However, in the presence of HC03⁻/C0₂ , both stimulation and inhibition of cAMP/PKA evoked changes in SS pH[sub i] and rates of pH[sub i] recovery from internal acid (and alkaline) loads. Further study indicated that modulation of the activity of the cAMP/PKA pathway changes the activities of the NIAE and NDAE in a manner depending on resting pH[sub i]. Inhibitors of CaM evoked rises in SS pHj that were dependent on the initial resting pHj and external Na+ , and increased rates of pH[sub i] recovery from acid loads imposed in either the presence or absence of HC03⁻, indicating that CaM inhibitors activate the NHE. CaM inhibitorevoked increases in SS pH[sub i] were minimally affected by changes in [Ca²⁺][sub i], but were not mediated by changes in the activities of the cAMP/PKA second messenger pathway, calcineurin or CaMKII. The results indicate that the activity of the NHE can be modulated by more than one intracellular second messenger system. Furthermore, the activities of the three pH[sub i] regulating mechanisms can be altered concomitantly by a single second messenger system. Ultimately, the described second messenger control of the activities of pH[sub i] regulating mechanisms present in rat hippocampal CA1 neurons may contribute to some of the effects of neurotransmitters on neuronal excitability and function.
Impulsive coronal heating during the interaction of surface magnetic fields in the lower solar atmosphere
Creators: name: Chitta, L. P.
name: Peter, H.
name: Priest, E. R.
name: Solanki, S. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Coronal plasma in the cores of solar active regions is impulsively heated to more than 5 MK. The nature and location of the magnetic energy source responsible for such impulsive heating is poorly understood. Using observations of seven active regions from the Solar Dynamics Observatory, we found that a majority of coronal loops hosting hot plasma have at least one footpoint rooted in regions of interacting mixed magnetic polarity at the solar surface. In cases when co-temporal observations from the Interface Region Imaging Spectrograph space mission are available, we found spectroscopic evidence for magnetic reconnection at the base of the hot coronal loops. Our analysis suggests that interactions of magnetic patches of opposite polarity at the solar surface and the associated energy release during reconnection are key to impulsive coronal heating.
description: Published in Astronomy & Astrophysics. Online movies available at https://www.aanda.org/articles/aa/olm/2020/12/aa39099-20/aa39099-20.html
Fast neutrino flavor conversions in one-dimensional core-collapse supernova models with and without muon creation
Creators: name: Capozzi, Francesco
name: Abbar, Sajad
name: Bollig, Robert
name: Janka, H. -Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In very dense environments, neutrinos can undergo fast flavor conversions on scales as short as a few centimeters provided that the angular distribution of the neutrino lepton number crosses zero. This work presents the first attempt to establish whether the non-negligible abundance of muons and their interactions with neutrinos in the core of supernovae can affect the occurrence of such crossings. For this purpose we employ state-of-the-art one-dimensional core-collapse supernova simulations, considering models that include muon-neutrino interactions as well as models without these reactions. Although a consistent treatment of muons in the equation of state and neutrino transport does not seem to modify significantly the conditions for the occurrence of fast modes, it allows for the existence of an interesting phenomenon, namely fast instabilities in the $μ-τ$ sector. We also show that crossings below the supernova shock are a relatively generic feature of the one-dimensional simulations under investigation, which contrasts with the previous reports in the literature. Our results highlight the importance of multi-dimensional simulations with muon creation, where our results must be tested in the future.
description: 10 pages, 5 figures in the main text. An appendix has been added with 3 figures showing a comparison between results obtained with different assumptions. The main results are unchanged, but their interpretation has been slightly modified and sometimes extended to improve clarity. Matches the version accepted on PRD
QU Carinae: a SNeIa progenitor?
Creators: name: Kafka, S.
name: Anderson, R.
name: Honeycutt, R. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Optical spectra obtained in 2006-07 of the nova-like cataclysmic variable QU Car are studied for radial velocities, line profiles, and line identifications. We are not able to confirm the reported 10.9 hr orbital period from 1982,partly because our sampling is not ideal for this purpose and also, we suspect, because our radial velocities are distorted by line profile changes due to an erratic wind. P-Cygni profiles are found in several of the emission lines, including those of C IV. Carbon lines are abundant in the spectra, suggesting a carbon enrichment in the doner star. The presence of [O III] 5007Åand [N II] 6584Åis likely due to a diffuse nebula in the vicinity of the system. The wind signatures in the spectra and the presence of nebular lines are in agreement with the accretion wind evolution scenario that has been suggested to lead to SNeIa. We argue that QU Car is a member of the V Sge subclass of CVs, and a possible SNeIa progenitor. It is shown that the recent light curve of QU Car has ~1 mag low states, similar to the light curve of V Sge, strengthening the connection of QU Car with V Sge stars, supersoft x-ray sources, and SNeIa progenitors.
description: Accepted in the Astronomical Journal. 11 pages, 3 tables, 5 figures
Impact of Corn Based Ethanol Production on the U.S. High Fructose Corn Syrup (HFCS) and Sugar Markets
Creators: name: Marzoughi, Hassan
name: Kennedy, P. Lynn
name: Hilbun, Brian M.
name: Marzoughi, Hassan
name: Kennedy, P. Lynn
name: Hilbun, Brian M.
Publisher: name: Unknown
Year: 2008
Subjects: Agribusiness
Production Economics

description: The objective of this paper is to determine the impact of ethanol production on the sweetener market in the U.S. It was found that ethanol production has increased corn demand and prices, and therefore, may have a negative impact on HFCS production and increase the demand for sugar.
A full gap above the Fermi level: the charge density wave of monolayer VS2
Creators: name: van Efferen, Camiel
name: Berges, Jan
name: Hall, Joshua
name: van Loon, Erik
name: Kraus, Stefan
name: Schobert, Arne
name: Wekking, Tobias
name: Huttmann, Felix
name: Plaar, Eline
name: Rothenbach, Nico
name: Ollefs, Katharina
name: Arruda, Lucas Machado
name: Brookes, Nick
name: Schoenhoff, Gunnar
name: Kummer, Kurt
name: Wende, Heiko
name: Wehling, Tim
name: Michely, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In the standard model of charge density wave (CDW) transitions, the displacement along a single phonon mode lowers the total electronic energy by creating a gap at the Fermi level, making the CDW a metal--insulator transition. Here, using scanning tunneling microscopy and spectroscopy and ab initio calculations, we show that VS$_2$ realizes a CDW which stands out of this standard model. There is a full CDW gap residing in the unoccupied states of monolayer VS$_2$. At the Fermi level, the CDW induces a topological metal-metal (Lifshitz) transition. Non-linear coupling of transverse and longitudinal phonons is essential for the formation of the CDW and the full gap above the Fermi level. Additionally, x-ray magnetic circular dichroism reveals the absence of net magnetization in this phase, pointing to coexisting charge and spin density waves in the ground state.
The Evolution of the Dark Halo Spin Parameters lambda and lambda' in a LCDM Universe: The Role of Minor and Major Mergers
Creators: name: Hetznecker, Helmut
name: Burkert, Andreas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The evolution of the spin parameter of dark halos and the dependence on the halo merging history in a set of dissipationless cosmological LCDM simulations is investigated. Special focus is placed on the differences of the two commonly used versions of the spin parameter, namely lambda=J*E^1/2/(G*M^5/2) (Peebles 80) and lambda'=J/(sqrt(2)*M_vir*R_vir*V_vir) (Bullock et al. 01). Though the distribution of the spin transfer rate defined as the ratio of the spin parameters after and prior to a merger is similar to a high degree for both, lambda and lambda', we find considerable differences in the time evolution: while lambda' is roughly independent of redshift, lambda turns out to increase significantly with decreasing redshift. This distinct behaviour arises from small differences in the spin transfer during accretion events. The evolution of the spin parameter is strongly coupled with the virial ratio eta:=2*E_kin/|E_pot| of dark halos. Major mergers disturb halos and increase both their virial ratio and spin parameter for 1-2 Gyrs. At high redshifts (z=2-3) many halos are disturbed with an average virial ratio of eta = 1.3 which approaches unity until z=0. We find that the redshift evolution of the spin parameters is dominated by the huge number of minor mergers rather than the rare major merger events.
description: 10 pages, 11 figures, submitted to MNRAS
A Novel Nuclear Model for Double Beta Decay
Creators: name: Krmpotić, Franjo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The possibility of applying the Quasiparticle Tamm-Dancoff Approximation (QTDA) to describe the nuclear double beta decay is explored. Several serious inconveniences found in the Quasiparticle Random Phase Approximation (QRPA), such as: i) the extreme sensitivity of the $2νββ$ decay amplitudes ${\cal M}_{2ν}$ on the residual interaction in the particle-particle channel, ii) the ambiguity in treating the intermediate states, and iii) the need for performing a second charge-conserving QRPA to describe the $ββ$-decays to the excited final states, are not present in the QTDA. Also, the QTDA allows for explicit evaluation of energy distributions of the double-charge-exchange transition strengths and of their sum rules, and can be straightforwardly applied to single- and double-closed shell nuclei. As an example, the $^{48}$Ca$\go^{48}$Ti decay is discussed within the $1fp$-shell in the particle-hole limit of the QTDA. The general [$(1,1)$-Padé-approximant-like] behavior of the $2νββ$-decay amplitude in the plain QRPA as well as within its different variations is briefly reviewed.
description: 29, 6 figures, paper devoted to honour the memory of Professor Dubravko Tadi\'c
Economic Analysis of Management Practices to Reduce Phosphorus Load to Lake Eucha and Spavinaw
Creators: name: Howry, Sierra S.
name: Stoecker, Arthur L.
name: Storm, Daniel E.
name: White, Michael J.
name: Howry, Sierra S.
name: Stoecker, Arthur L.
name: Storm, Daniel E.
name: White, Michael J.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Environmental Economics and Policy
subject: best management practice
subject: phosphorus runoff
subject: poultry litter
subject: Target MOTAD

description: Changes in management practices are often proposed to reduce phosphorus loading from a watershed due to over application of poultry litter. This study determines the choice, location, and level of each best management practice in the watershed to meet a Total Maximum Daily Load and margins of safety at least cost.
Hardy inequalities in strips on ruled surfaces
Creators: name: Krejcirik, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 58J50; 35P99; 81Q10

description: We consider the Dirichlet Laplacian in infinite two-dimensional strips defined as uniform tubular neighbourhoods of curves on ruled surfaces. We show that the negative Gauss curvature of the ambient surface gives rise to a Hardy inequality and use this to prove certain stability of spectrum in the case of asymptotically straight strips about mildly perturbed geodesics.
description: LaTeX, 10 pages; to appear in Journal of Inequalities and Applications
In memoriam Professor D. Dr. Edmund Schlink, 6.3.1903-20.5.1984
Creators: name: Held, Heinz Joachim
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 33 Nr. 3 (1984): Ökumenische Rundschau, Band 33, Heft 3
New Evidence for Extended HeII Reionization at z>3.5 from HeII Lyman Alpha and Beta Transmission Spikes
Creators: name: Makan, Kirill
name: Worseck, Gábor
name: Davies, Frederick B.
name: Hennawi, Joseph F.
name: Prochaska, J. Xavier
name: Richter, Philipp
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present new high-resolution (R~14,000) spectra of the two brightest HeII-transparent quasars in the far-UV (FUV) at z>3.5, HE2QSJ2311-1417 (z=3.70) and HE2QSJ1630+0435 (z=3.81), obtained with the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST). In the predominantly saturated HeII absorption spectra, both sightlines show several isolated resolved (full width at half maximum FWHM>50 km/s) transmission spikes in HeII Ly$α$ and HeII Ly$β$. The incidence of such spikes decreases with increasing redshift, but both sightlines show significant spikes at z>3.5, signaling the presence of fully ionized regions in the z>3.5 intergalactic medium (IGM). We employ an automated algorithm to compare the number of detected HeII transmission spikes to predictions from mock spectra created from the outputs of a cubic (100/h cMpc)^3 optically thin Nyx hydrodynamical simulation, assuming a range of UV background photoionization rates $Γ_\mathrm{HeII}$. From the incidence of Ly$α$ and Ly$β$ transmission spikes we infer similar photoionization rates of $Γ_\mathrm{HeII}=2.0^{+0.6}_{-0.5}\times 10^{-15}$s$^{-1}$ at 3.513.5 along both lines of sight, our observations provide further evidence that HeII reionization had substantially progressed at these redshifts.
description: Accepted for publication in ApJ following minor revision; 21 pages, 17 figures
The Effect Demographics Have On The Demand For Orange Juice
Creators: name: Davis, Andrew
name: Gunderson, Michael A.
name: Brown, Mark G.
name: House, Lisa
name: Davis, Andrew
name: Gunderson, Michael A.
name: Brown, Mark G.
name: House, Lisa
Publisher: name: Unknown
Year: 2008
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business

description: This paper investigates how the demand for orange juice is affected by the demographics of consumers. There are many variables in the orange juice demand equation and demographics are only one. Demographic variables are important in determining the tastes and preferences of different regions. The data that has been collected is weekly data over a two year period of time. The seemingly unrelated regression method will be used to examine the data. This project will be beneficial to orange juice advertising firms and companies that sell orange juice.
On the Equivalence of the Massless DKP equation and the Maxwell Equations in the Shuwer
Creators: name: Salti, Mustafa
name: Havare, Ali
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper has been removed by arXiv administrators because it plagiarizes P.K. Jena, P.C. Naik and T. Pradhan, "Photon As The Zero Mass Limit Of Dkp Field," J. Phys. A 13, 2975 (1980) [not cited within submission]. In addition, the following submissions by the authors and their collaborators all contain a great deal of overlap: gr-qc/0502059, gr-qc/0502061, gr-qc/0207026, hep-th/0110228, and hep-th/0207088.
description: This submission has been withdrawn by arXiv administrators due to inappropriate text reuse from external sources
ASSESSMENT OF HOMEOWNERSHIP AND ASSET POVERTY IN THE ALABAMA BLACK BELT AND NON-BLACK BELT COUNTIES
Creators: name: Kanyi, Peter M.
name: Baharanyi, Ntam
name: Ngandu, Mudiayi Sylvain
name: Zabawa, Robert
name: Kanyi, Peter M.
name: Baharanyi, Ntam
name: Ngandu, Mudiayi Sylvain
name: Zabawa, Robert
Publisher: name: Unknown
Year: 2008
Subjects: Public Economics

description: This study assessed homeownership and how it is affected by race, residency in or out of Alabama Black Belt, family status, poverty and other variables. All variables showed significant relationship to Alabama homeownership with single-parenthood showing a negative impact on White homeownership but insignificant to Black homeownership in the region.
HOLISMOKES -- V. Microlensing of type II supernovae and time-delay inference through spectroscopic phase retrieval
Creators: name: Bayer, J.
name: Huber, S.
name: Vogl, C.
name: Suyu, S. H.
name: Taubenberger, S.
name: Sluse, D.
name: Chan, J. H. H.
name: Kerzendorf, W. E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate strongly gravitationally lensed type II supernovae (LSNe II) for time-delay cosmography incorporating microlensing effects, which expands on previous microlensing studies of type Ia supernovae (SNe Ia). We use the radiative-transfer code ${\rm \small TARDIS}$ to recreate five spectra of the prototypical SN 1999em at different times within the plateau phase of the light curve. The microlensing-induced deformations of the spectra and light curves are calculated by placing the SN into magnification maps generated with the code ${\rm \small GERLUMPH}$. We study the impact of microlensing on the color curves and find that there is no strong influence on them during the investigated time interval of the plateau phase. The color curves are only weakly affected by microlensing due to the almost achromatic behavior of the intensity profiles. However, the lack of non-linear structure in the color curves makes time-delay measurements difficult given the possible presence of differential dust extinction. Therefore, we further investigate SN phase inference through spectral absorption lines under the influence of microlensing and Gaussian noise. As the spectral features shift to longer wavelengths with progressing time after explosion, the measured wavelength of a specific absorption line provides information on the epoch of the SN. The comparison between retrieved epochs of two observed lensing images then gives the time delay of the images. We find that the phase retrieval method using spectral features yields accurate delays with uncertainties $\small {\lesssim}$2 days, making it a promising approach.
description: 19 pages, 17 figures
SPHINCS_BSSN: A general relativistic Smooth Particle Hydrodynamics code for dynamical spacetimes
Creators: name: Rosswog, S.
name: Diener, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a new methodology for simulating self-gravitating general-relativistic fluids. In our approach the fluid is modelled by means of Lagrangian particles in the framework of a general-relativistic (GR) Smooth Particle Hydrodynamics (SPH) formulation, while the spacetime is evolved on a mesh according to the BSSN formulation that is also frequently used in Eulerian GR-hydrodynamics. To the best of our knowledge this is the first Lagrangian fully general relativistic hydrodynamics code (all previous SPH approaches used approximations to GR-gravity). A core ingredient of our particle-mesh approach is the coupling between the gas (represented by particles) and the spacetime (represented by a mesh) for which we have developed a set of sophisticated interpolation tools that are inspired by other particle-mesh approaches, in particular by vortex-particle methods. One advantage of splitting the methodology between matter and spacetime is that it gives us more freedom in choosing the resolution, so that -- if the spacetime is smooth enough -- we obtain good results already with a moderate number of grid cells and can focus the computational effort on the simulation of the matter. Further advantages of our approach are the ease with which ejecta can be tracked and the fact that the neutron star surface remains well-behaved and does not need any particular treatment. In the hydrodynamics part of the code we use a number of techniques that are new to SPH, such as reconstruction, slope limiting and steering dissipation by monitoring entropy conservation. We describe here in detail the employed numerical methods and demonstrate the code performance in a number of benchmark problems ranging from shock tube tests, over Cowling approximations to the fully dynamical evolution of neutron stars in self-consistently evolved spacetimes.
description: 41 pages, 16 figures; accepted for publication in Classical and Quantum Gravity
Non-Reciprocity of the Wave Packet Scattering Delay in Ballistic Two-Terminal Devices
Creators: name: Bredol, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In the linear regime, transport properties of ballistic two-terminal devices are generally considered to be independent of the direction of the current. This two-terminal reciprocity applies to both the electron transmission and reflection probabilities. However, it does not apply to the scattering delays of wave packets. Indeed, \emph{four} different time delays describe the transmission and reflection processes of wave packets arriving from the two terminals, respectively. Unlike the probabilities, these delays are direction dependent if the channel exchange symmetry of the scattering matrix is broken.
An Assessment of the India Soy Protein Market
Creators: name: Brinker, Adam J.
name: Parcell, Joseph L.
name: Boessen, Christian R.
name: Brinker, Adam J.
name: Parcell, Joseph L.
name: Boessen, Christian R.
Publisher: name: Unknown
Year: 2008
Subjects: Demand and Price Analysis
Food Consumption/Nutrition/Food Safety

description: This research is a first step in determining India's future need for soy-based protein products. The objective of this study is to determine India's protein demand over the next ten years. Then, using the per capita protein demand derived from this study, along with income, population, and dietary information, per capita soy protein consumption was estimated for the same time period. It was found that income growth has a large positive affect on protein consumption.
OPTIMIZING FINANCIAL LEVERAGE TO ENHANCE COMPANY PERFORMANCE: AN EMPIRICAL ANALYSIS OF MSX 30 INDEX COMPANIES LISTED IN THE MUSCAT STOCK EXCHANGE OF OMAN
Creators: name: VAMSI PRASAD KOLLIPARA
name: VENKATESWARARAO PODILI
Publisher: name: Zenodo
Year: 2024
Subjects: Financial Leverage, Performance Enhancement, Return on Assets (ROA), Return on Equity (ROE), Solvency Ratio, Debt-to-Equity Ratio and Proprietary Ratio.

description: Abstract

This research paper investigates the dynamic interplay between financial leverage and the performance enhancement in Omani companies, specifically those listed on the Muscat Stock Exchange. Employing a panel data analysis approach, the study utilizes secondary data extracted from the financial statements of selected listed companies covering the period from 2018 to 2022. The research specifically integrates three pivotal ratios—Solvency Ratio, Debt-to-Equity Ratio, and Proprietary Ratio—to systematically analyze their respective impacts on Return on Assets (ROA) and Return on Equity (ROE). Grounded in a thorough analysis of company data, this study not only offers insightful analyses of historical financial information but also integrates growth performance predictions by the researcher. These predictions aim to identify positive or negative correlations between financial leverage and overall corporate performance. The study's findings hold significant implications for strategic decision-making, capital structure optimization, and advancing the understanding of financial dynamics in the Omani business landscape.
Examining the Impact of the World Crude Oil Price on China's Agricultural Commodity Prices: The Case of Corn, Soybean, and Pork
Creators: name: Zhang, Qiang
name: Reed, Michael R.
name: Zhang, Qiang
name: Reed, Michael R.
Publisher: name: Unknown
Year: 2008
Subjects: Agribusiness
Demand and Price Analysis

description: This study investigates effects of the world crude oil price on feed grain prices and pork prices in China. The results from time series techniques show the influences of crude oil price are not significant over the study period. The pork demand and supply result in the skyrocketing pork price.
Spectra of observables in the q-oscillator and q-analogue of the Fourier transform
Creators: name: Klimyk, Anatoliy
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81Q10; 81S05; 41B15

description: Spectra of the position and momentum operators of the Biedenharn-Macfarlane q-oscillator (with the main relation aa^+-qa^+a=1) are studied when q>1. These operators are symmetric but not self-adjoint. They have a one-parameter family of self-adjoint extensions. These extensions are derived explicitly. Their spectra and eigenfunctions are given. Spectra of different extensions do not intersect. The results show that the creation and annihilation operators a^+ and a of the q-oscillator for q>1 cannot determine a physical system without further more precise definition. In order to determine a physical system we have to choose appropriate self-adjoint extensions of the position and momentum operators.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Investigation of the Costs of an Increased Shipping Standard for Cotton Warehouses
Creators: name: Kenkel, Philip L.
name: Kim, Taeyoon
name: Kenkel, Philip L.
name: Kim, Taeyoon
Publisher: name: Unknown
Year: 2008
Subjects: Industrial Organization

description: The speed of shipping cotton from warehouses has become an important issue for the cotton industry. This paper examines issues relating to costs and benefits of an increased cotton shipping standard. The value chain model is used to identify improvements in incentives, information flow and warehouse filling and management strategies.
Stephan, Sabine: Karapet Episkopos Ter-Mkrttitschjan (1866-1915)
Creators: name: Heyer, Friedrich
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 33 Nr. 2 (1984): Ökumenische Rundschau, Band 33, Heft 2
Scaling-invariant functions versus positively homogeneous functions
Creators: name: Touré, Cheikh
name: Gissler, Armand
name: Auger, Anne
name: Hansen, Nikolaus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Scaling-invariant functions preserve the order of points when the points are scaled by the same positive scalar (with respect to a unique reference point). Composites of strictly monotonic functions with positively homogeneous functions are scaling-invariant with respect to zero. We prove in this paper that the reverse is true for large classes of scaling-invariant functions. Specifically, we give necessary and sufficient conditions for scaling-invariant functions to be composites of a strictly monotonic function with a positively homogeneous function. We also study sublevel sets of scaling-invariant functions generalizing well-known properties of positively homogeneous functions.