cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Statefinder diagnostic for coupled quintessence
Creators: name: Zhang, Xin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The problem of the cosmic coincidence is a longstanding puzzle. This conundrum may be solved by introducing a coupling between the two dark sectors. In this Letter, we study two cases of the coupled quintessence scenario. $(a)$ Assume that the mass of dark matter particles depends exponentially on the scalar field associated to dark energy and meanwhile the scalar field evolves in an exponential potential; $(b)$ Assume that the mass of dark matter particles depends on a power law function of the scalar field and meanwhile the scalar field evolves in a power law potential. Since the dynamics of this system is dominated by an attractor solution, the mass of dark matter particles is forced to change with time as to ensure that the ratio between the energy densities of dark matter and dark energy becomes a constant at late times, and one thus solve the cosmic coincidence problem naturally. We perform a statefinder diagnostic to both cases of this coupled quintessence scenario. It is shown that the evolving trajectory of this scenario in the $s-r$ diagram is quite different from those of other dark energy models.
description: 12 pages, 6 figures, to appear in Phys. Lett. B
Метастатичен тройно-негативен рак на гърдата – лечение отвъд химиотерапията.
Creators: name: Jeliazko Arabadjiev
name: Zlatanova, Tanya
Publisher: name: figshare
Year: 2020
Subjects: subject: 111205 Chemotherapy
subject: FOS: Clinical medicine
subject: 111299 Oncology and Carcinogenesis not elsewhere classified

description: Triple negative breast cancer and many new targetted approaches to treat it in metastatic setting.
STM/STS Study on 4a X 4a Electronic Charge Order and Inhomogeneous Pairing Gap in Superconducting Bi2Sr2CaCu2O8+d
Creators: name: Hashimoto, A.
name: Momono, N.
name: Oda, M.
name: Ido, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We performed STM/STS measurements on underdoped Bi2212 crystals with doping levels p ~ 0.11, ~ 0.13 and ~ 0.14 to examine the nature of the nondispersive 4a X 4a charge order in the superconducting state at T << Tc. The charge order appears conspicuously within the pairing gap, and low doping tends to favor the charge order. We point out the possibility that the 4a X 4a charge order will be dynamical in itself, and pinned down over regions with effective pinning centers. The pinned 4a X 4a charge order is closely related to the spatially inhomogeneous pairing gap structure, which has often been reported in STS measurements on high-Tc cuprates.
description: 12 pages, 16 figures, to be published in Phys. Rev. B
Distant spin entanglement via fast and coherent electron shuttling
Creators: name: Jadot, Baptiste
name: Mortemousque, Pierre-André
name: Chanrion, Emmanuel
name: Thiney, Vivien
name: Ludwig, Arne
name: Wieck, Andreas D.
name: Urdampilleta, Matias
name: Bäuerle, Christopher
name: Meunier, Tristan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In the quest for large-scale quantum computing, networked quantum computers offer a natural path towards scalability. Now that nearest neighbor entanglement has been demonstrated for electron spin qubits in semiconductors, on-chip long distance entanglement brings versatility to connect quantum core units. Here we realize the controlled and coherent transfer of a pair of entangled electron spins, and demonstrate their remote entanglement when separated by a distance of 6 microns. Driven by coherent spin rotations induced by the electron displacement, high-contrast spin quantum interferences are observed and are a signature of the preservation of the entanglement all along the displacement procedure. This work opens the route towards fast on-chip deterministic interconnection of remote quantum bits in semiconductor quantum circuits.
description: Main text of 7 pages with 4 figures. Supplementary information of 4 pages with 3 figures
The shortest period M-dwarf eclipsing system BW3 V38, II: determination of absolute elements
Creators: name: Maceroni, C.
name: Montalban, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The spectroscopic data for the short-period (0.1984 d)eclipsing binary V38, discovered by the OGLE micro-lensing team in Baade's Window field BW3, are analyzed. Radial velocity curves are derived from mid-resolution spectra obtained with EMMI-NTT at ESO - La Silla, and a simultaneous solution of the existing light curve by OGLE and of the new radial velocity curves is obtained. The system is formed by almost twin M3e dwarf components that are very close, but not yet in contact. The spectra of both dwarfs show signatures of the presence of strong chromospheres. Spectroscopy definitely confirms, therefore, what was suggested on the basis of photometry: BW3 V38 is indeed a unique system, as no other similar binary with M components and in such a tight orbit is known. Within the limits posed by the relatively large errors, due to the combined effect of system faintness and of the constraints on exposure time, the derived physical parameters seem to agree with the relations obtained from the other few known eclipsing binaries with late type components (which indicate a discrepancy between the available evolutionary models and the data at ~ 10% level). A possible explanation is the presence of strong magnetic fields and fast rotation (that applies to the BW3 V38 case as well). A simple computation of the system secular evolution by angular momentum loss and spin orbit synchronization shows that the evolution of a system with M dwarfs components is rather slow, and indicates as well a possible reason why systems similar to BW3 V38 are so rare.
description: 9 pages, 7 figures, 3 tables, accepted for publication in A&A
Investigating linkages between economic growth, energy consumption and pollutant emissions in Tunisia
Creators: name: Chebbi, Houssem Eddine
name: Chebbi, Houssem Eddine
Publisher: name: Unknown
Year: 2009
Subjects: subject: Environmental Economics and Policy
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: pollutant emissions
subject: economic growth
subject: cointegration
subject: causality
subject: Tunisia

description: The aim of this study is to understand long and short-run linkages between economic growth, energy consumption and carbon emission using Tunisian data over the period 1971-2004. Cointegration procedure is used to analyze the time series properties of the series and error-correction terms were considered to test for the direction of Granger causality. Statistical findings indicate that economic growth, energy consumption and CO2 emission are related in the long-run and provide some evidence of inefficient use of energy in Tunisia, since environmental pressure tends to rise faster than economic growth. The short-run analysis, provide support for causality running from CO2 emissions growth to output growth, both in the short-run and the long-run. The results provide also some support of mutual causal and feedback relationship in the long-run. In addition, the results show strong evidence of causality running from output growth to energy consumption in the short-run and mutual causality in the long-run implying that Tunisia is an energy dependent economy. From a policy perspective, policy makers in Tunisia should be mindful that a persistent decline in environmental quality may exert negative externalities to the economy.
Plasmonic nonreciprocity driven by band hybridization in moiré materials
Creators: name: Papaj, Michał
name: Lewandowski, Cyprian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a new current-driven mechanism for achieving significant plasmon dispersion nonreciprocity in systems with narrow, strongly hybridized electron bands. The magnitude of the effect is controlled by the strength of electron-electron interactions $α$, which leads to its particular prominence in moiré materials, characterized by $α\gg 1$. Moreover, this phenomenon is most evident in the regime where Landau damping is quenched and plasmon lifetime is increased. The synergy of these two effects holds a great promise for novel optoelectronic applications of moiré materials.
description: 12 pages, 4 figures
Field sampling and modelling of creosote-derived contamination in a tidally forced aquifer
Creators: name: Bieber, Christine
Publisher: name: University of British Columbia
Year: 2009

description: Research into the fate and transport of a creosote-derived groundwater contaminant plume found in an aquifer adjacent to and beneath the Fraser River is presented. The site, located in Coquitlam, B.C., has been an active wood preserving facility since the 1920's. In the source zone, creosote has penetrated into the Fraser Sands aquifer. A capture well has been operated since 1996 to contain and capture the contaminant source. Previous research at the site has demonstrated that the primary component of the dissolved phase plume is naphthalene and that biodegradation of naphthalene is taking place. Suspected terminal electron accepting processes are iron reduction and methanogenesis. High naphthalene concentrations sampled in 1999 despite source containment led to the hypothesis that the plume may be at steady state due to buffering of contaminant concentrations by desorption from aquifer sediments. Naphthalene concentrations sampled in this study show that the contaminant plume is not at steady state. Particle tracking results and sorption data show that the continued presence of high concentrations of naphthalene offshore are likely due to incomplete source containment or to slow migration of contaminants from the onshore region of the plume. Although naphthalene has been the focus of all previous investigations of the offshore plume at this site, recent sampling shows that indane and benzothiophene become the dominant components of the aqueous phase plume towards the discharge point. Relative enrichment of benzothiophene and indane along the plume profile despite these compounds greater susceptibility to tidally-enhanced dispersion proves that observed loss of naphthalene over the plume flowpath is not due to a physical process The results of groundwater flow modelling show that the capture well at the site extends the residence times of contaminants in the aquifer, thereby increasing the opportunity for attenuation of contaminants before discharge to the river. This increase in residence times explains the rapid decrease in naphthalene along the plume flowpath observed in this study. Concentrations of iron and dissolved methane are higher throughout the plume axis than in background data collected suggesting that high iron and methane along the plume flowpath are associated with processes specific to the contaminated area. Geochemical modelling shows that degradation of naphthalene at the site may be taking place by iron reduction or a combination of iron reduction and methanogenesis.
СТАТИЯ_ MedicPRINT_TNBC_targetted_FINAL.pdf
Creators: name: Jeliazko Arabadjiev
name: Zlatanova, Tanya
Publisher: name: figshare
Year: 2020
Subjects: subject: 111205 Chemotherapy
subject: FOS: Clinical medicine
subject: 111299 Oncology and Carcinogenesis not elsewhere classified

description: Triple negative breast cancer and many new targetted approaches to treat it in metastatic setting.
The limitations of nice mutually unbiased bases
Creators: name: Aschbacher, Michael
name: Childs, Andrew M.
name: Wocjan, Pawel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Mutually unbiased bases of a Hilbert space can be constructed by partitioning a unitary error basis. We consider this construction when the unitary error basis is a nice error basis. We show that the number of resulting mutually unbiased bases can be at most one plus the smallest prime power contained in the dimension, and therefore that this construction cannot improve upon previous approaches. We prove this by establishing a correspondence between nice mutually unbiased bases and abelian subgroups of the index group of a nice error basis and then bounding the number of such subgroups. This bound also has implications for the construction of certain combinatorial objects called nets.
description: 7 pages
Minimum wave speeds in monostable reaction-diffusion equations: sharp bounds by polynomial optimization
Creators: name: Bramburger, Jason J.
name: Goluskin, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Many monostable reaction-diffusion equations admit one-dimensional travelling waves if and only if the wave speed is sufficiently high. The values of these minimum wave speeds are not known exactly, except in a few simple cases. We present methods for finding upper and lower bounds on minimum wave speed. They rely on constructing trapping boundaries for dynamical systems whose heteroclinic connections correspond to the travelling waves. Simple versions of this approach can be carried out analytically but often give overly conservative bounds on minimum wave speed. When the reaction-diffusion equations being studied have polynomial nonlinearities, our approach can be implemented computationally using polynomial optimization. For scalar reaction-diffusion equations, we present a general method and then apply it to examples from the literature where minimum wave speeds were unknown. The extension of our approach to multi-component reaction-diffusion systems is then illustrated using a cubic autocatalysis model from the literature. In all three examples and with many different parameter values, polynomial optimization computations give upper and lower bounds that are within 0.1% of each other and thus nearly sharp. Upper bounds are derived analytically as well for the scalar RD equations.
Memorandum of Understanding (MoU) signed between ASHVIN & StandICT.eu 2023
Creators: name: Marill, Mona
name: Papanikolaou, Vasileios
Publisher: name: Zenodo
Year: 2021
Subjects: H2020, Digital Twins, Construction, dissemination, communication, standardization

description: StandICT.eu 2023 & ASHVIN announces their collaboration boosting open standardisation for Digital Twins at a European scale. The StandICT.eu 2023 - a Coordination & Support Action supported under the European Commission Framework Programme of H20201t - is enthusiastic having signed a MoU with the ASHVIN that is a Horizon 2020 RIA initiative.
Swift Identification of Dark Gamma-Ray Bursts
Creators: name: Jakobsson, P.
name: Hjorth, J.
name: Fynbo, J. P. U.
name: Watson, D.
name: Pedersen, K.
name: Bjornsson, G.
name: Gorosabel, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an optical flux vs. X-ray flux diagram for all known gamma-ray bursts (GRBs) for which an X-ray afterglow has been detected. We propose an operational definition of dark bursts as those bursts that are optically subluminous with respect to the fireball model, i.e., which have an optical-to-X-ray spectral index beta_OX < 0.5. Out of a sample of 52 GRBs we identify 5 dark bursts. The definition and diagram serve as a simple and quick diagnostic tool for identifying dark GRBs based on limited information, particularly useful for early and objective identification of dark GRBs observed with the Swift satellite.
description: 4 pages, 1 figure. ApJ Letters, in press
Redshift-space effects in voids and their impact on cosmological tests. Part I: the void size function
Creators: name: Correa, Carlos M.
name: Paz, Dante J.
name: Sánchez, Ariel G.
name: Ruiz, Andrés N.
name: Padilla, Nelson D.
name: Angulo, Raúl E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Voids are promising cosmological probes. Nevertheless, every cosmological test based on voids must necessarily employ methods to identify them in redshift space. Therefore, redshift-space distortions (RSD) and the Alcock-Paczynski effect (AP) have an impact on the void identification process itself generating distortion patterns in observations. Using a spherical void finder, we developed a statistical and theoretical framework to describe physically the connection between the identification in real and redshift space. We found that redshift-space voids above the shot noise level have a unique real-space counterpart spanning the same region of space, they are systematically bigger and their centres are preferentially shifted along the line of sight. The expansion effect is a by-product of RSD induced by tracer dynamics at scales around the void radius, whereas the off-centring effect constitutes a different class of RSD induced at larger scales by the global dynamics of the whole region containing the void. The volume of voids is also altered by the fiducial cosmology assumed to measure distances, this is the AP change of volume. These three systematics have an impact on cosmological statistics. In this work, we focus on the void size function. We developed a theoretical framework to model these effects and tested it with a numerical simulation, recovering the statistical properties of the abundance of voids in real space. This description depends strongly on cosmology. Hence, we lay the foundations for improvements in current models of the abundance of voids in order to obtain unbiased cosmological constraints from redshift surveys.
description: 16 pages, 12 figures, accepted in MNRAS
Hyper Suprime-Cam Low Surface Brightness Galaxies II: A Hubble Space Telescope Study of the Globular Cluster Systems of Ultra-Diffuse Galaxies in Groups
Creators: name: Somalwar, Jean J.
name: Greene, Jenny E.
name: Greco, Johnny P.
name: Huang, Song
name: Beaton, Rachael L.
name: Goulding, Andy D.
name: Lancaster, Lachlan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We increase the sample of ultra diffuse galaxies (UDGs) in lower density environments with characterized globular cluster (GC) populations using new Hubble Space Telescope observations of nine UDGs in group environments. While the bulk of our UDGs have GC abundances consistent with normal dwarf galaxies, two of these UDGs have excess GC populations. These two UDGs both have GC luminosity functions consistent with higher surface brightness galaxies and cluster UDGs. We then combine our nine objects with previous studies to create a catalog of UDGs with analyzed GC populations that spans a uniquely diverse range of environments. We use this catalog to examine broader trends in the GC populations of low stellar mass galaxies. The highest GC abundances are found in cluster UDGs, but whether cluster UDGs are actually more extreme requires study of many more UDGs in groups. We find a possible positive correlation between GC abundance and stellar mass, and between GC abundance and galaxy size at fixed stellar mass. However, we see no significant stellar-mass galaxy-size relation, over our limited stellar mass range. We consider possible origins of the correlation between GC abundance and galaxy size, including the possibility that these two galaxy properties are both dependent on the galaxy dark matter halo, or that they are related through baryonic processes like internal feedback.
description: 22 pages, 12 figures, submitted to ApJ, posted after referee's comments
Domain-decomposition least-squares Petrov-Galerkin (DD-LSPG) nonlinear model reduction
Creators: name: Hoang, Chi
name: Choi, Youngsoo
name: Carlberg, Kevin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: A novel domain-decomposition least-squares Petrov-Galerkin (DD-LSPG) model-reduction method applicable to parameterized systems of nonlinear algebraic equations (e.g., arising from discretizing a parameterized partial-differential-equations problem) is proposed. In contrast with previous works, we adopt an algebraically non-overlapping decomposition strategy rather than a spatial-decomposition strategy, which facilitates application to different spatial-discretization schemes. Rather than constructing a low-dimensional subspace for the entire state space in a monolithic fashion, the methodology constructs separate subspaces for the different subdomains/components characterizing the original model. In the offline stage, the method constructs low-dimensional bases for the interior and interface of components. In the online stage, the approach constructs an LSPG ROM for each component and enforces strong or weak compatibility on the 'ports' connecting them. We propose four different ways to construct reduced bases on the interface/ports of subdomains and several ways to enforce compatibility across connecting ports. We derive a posteriori and a priori error bounds for the DD-LSPG solutions. Numerical results performed on nonlinear benchmark problems in heat transfer and fluid dynamics demonstrate that the proposed method performs well in terms of both accuracy and computational cost, with different choices of basis and compatibility constraints yielding different performance profiles.
description: 43 pages, 17 figures
The Herbig Ae star HD 163296 in X-rays
Creators: name: Swartz, Douglas A.
name: Drake, Jeremy J.
name: Elsner, Ronald F.
name: Ghosh, Kajal K.
name: Grady, Carol A.
name: Wassell, Edward
name: Woodgate, Bruce E.
name: Kimble, Randy A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Chandra X-ray imaging spectroscopy of the nearby Herbig Ae star HD 163296 at 100 AU angular resolution is reported. A point-like, soft (kT~0.5 keV), emission-line source is detected at the location of the star with an X-ray luminosity of 4.0e29 erg/s. In addition, faint emission along the direction of a previously-detected Ly-alpha-emitting jet and Herbig-Haro outflow may be present. The relatively low luminosity, lack of a hard spectral component, and absence of strong X-ray variability in HD 163296 can be explained as originating from optically-thin shock-heated gas accreting onto the stellar surface along magnetic field lines. This would require a (dipole) magnetic field strength at the surface of HD 163296 of at least ~100 G and perhaps as high as several kG. HD 163296 joins the T Tauri star TW Hya in being the only examples known to date of pre-main-sequence stars whose quiescent X-ray emission appears to be completely dominated by accretion.
description: 7 pages, to be published in ApJ, 20 June 2005
Graviballs and Dark Matter
Creators: name: Guiot, B.
name: Borquez, A.
name: Deur, A.
name: Werner, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the possible existence of graviballs, a system of bound gravitons, and show that two gravitons can be bound together by their gravitational interaction. This idea connects to black hole formation by a high-energy $2\to N$ scattering and to the gravitational geon studied by Brill and Hartle. Our calculations rely on the formalism and techniques of quantum field theory, specifically on low-energy quantum gravity. By solving numerically the relativistic equations of motion, we have access to the space-time dynamics of the (2-gravitons) graviball formation. We argue that the graviball is a viable dark matter candidate and we compute the associated gravitational lensing.
description: 25 pages, 6 figures, 2 videos as ancillary files. Includes two new sections
Designing profitable and responsive supply chains under uncertainty
Creators: name: Azaron, Amir
name: Venkatadri, Uday
name: Alireza Farhang Doost
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Computational Biology

description: In this paper, we develop a multi-objective two-stage stochastic programming model, which takes into account the selection of warehouse and retailer sites and the decision about production levels, inventory levels, and shipping quantities among the entities of the supply chain network. The first objective function is to maximise the chain’s total profit over multiple periods, and the second objective function is to minimise the total travel times for unsatisfied customers, whose demands must be met by retailers which have been established in other markets, to maximise the chain’s responsiveness. Demands, selling prices and productions times at manufacturing sites are all considered as uncertain parameters. The two objective functions are in conflict with each other, and we use ϵ-constraint method to generate a set of Pareto optimal solutions for the proposed multi-objective problem. We then generalise the case and assume the uncertain parameters are continuously distributed random variables and use a simulation approach called sample average approximation (SAA) scheme to compute near optimal solutions to the stochastic model with potentially infinite number of scenarios. A computational study involving hypothetical networks of different sizes and a real supply chain network are presented to highlight the efficiency of the proposed solution methodology.
The discovery and properties of pentaquarks
Creators: name: Stancu, Fl.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The pentaquarks are exotic baryons formed of four quarks and an antiquarks. Their existence has been discussed in the literature over the last 30 years or more, first in connection with kaon nucleon scattering data. The subject has been revived by the end of 2002 when experimental evidence of a narrow baryon of strangeness $S$ = + 1, and mass $M \simeq$ 1530 MeV has been found. This is interpreted as the lightest member of an SU(3)-flavor antidecuplet. Here we shall mainly review the predictions of pentaquark properties as e.g. mass, spin and parity, within constituent quark models. Both light and heavy pentaquarks will be presented.
description: Plenary talk, MESON2004 Conference Proceedings, Crakow, June 4-8 2004
MUALLIFLIK KORPUSINI LOYIHALASH (ERKIN VOHIDOV SHE'RIYATI MISOLIDA)
Creators: name: Abdurahmanova, Muqaddas
name: Arislanova, Muxlisa
Publisher: name: Zenodo
Year: 2024

description: maqolada amaliy o‘zbek tilshunosligining muhim  sohasidan biriga aylangan,  korpus lingvistikasi  tamoyillari hamda mualliflik  korpusini loyihalash va tuzish (Erkin Vohidov asarlari asosida) jarayoni haqida so‘z boradi. O‘zbek tili mualliflik  korpusini tuzishning lingvistik asoslari keltiriladi. Erkin Vohidov asarlari korpusini tuzishning muhim bosqichlari sanab o‘tiladi.
Zum stehenden Autorenbild der byzantinischen Buchmalerei
Creators: name: Baumstark, Anton
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 11 Nr. 2 (1913): Oriens christianus, Band 11, Heft 2
Sulfur-driven Haze Formation in Warm CO2-rich Exoplanet Atmospheres
Creators: name: He, Chao
name: Horst, Sarah M.
name: Lewis, Nikole K.
name: Yu, Xinting
name: Moses, Julianne I.
name: McGuiggan, Patricia
name: Marley, Mark S.
name: Kempton, Eliza M. -R.
name: Moran, Sarah E.
name: Morley, Caroline V.
name: Vuitton, Veronique
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Sulfur gases significantly affect the photochemistry of planetary atmospheres in our Solar System, and are expected to be important components in exoplanet atmospheres. However, sulfur photochemistry in the context of exoplanets is poorly understood due to a lack of chemical-kinetics information for sulfur species under relevant conditions. Here, we study the photochemical role of hydrogen sulfide (H2S) in warm CO2-rich exoplanet atmospheres (800 K) by carrying out laboratory simulations. We find that H2S plays a significant role in photochemistry, even when present in the atmosphere at relatively low concentrations (1.6%). It participates in both gas and solid phase chemistry, leading to the formation of other sulfur gas products (CH3SH/SO, C2H4S/OCS, SO2/S2, and CS2) and to an increase in solid haze particle production and compositional complexity. Our study shows that we may expect thicker haze with small particle sizes (20 to 140 nm) for warm CO2-rich exoplanet atmospheres that possess H2S.
On the atomic structure of exponential Puiseux monoids and semirings
Creators: name: Albizu-Campos, Sofía
name: Bringas, Juliet
name: Polo, Harold
Publisher: name: arXiv
Year: 2020
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: A Puiseux monoid is an additive submonoid of the nonnegative cone of the rational numbers. We say that a Puiseux monoid $M$ is exponential provided that there exist a positive rational $r$ and a set $S$ consisting of nonnegative integers, which contains $0$, such that $M$ is generated by the set $\{r^s \mid s \in S\}$. If $M$ is multiplicatively closed then we say that $M$ is an exponential Puiseux semiring. Here we study the atomic properties of exponential Puiseux monoids and semirings. First, we characterize atomic exponential Puiseux monoids, and we prove that the finite factorization property, the bounded factorization property, and the ACCP coincide in this context. Then we proceed to offer a necessary condition and a sufficient condition for an exponential Puiseux monoid to satisfy the ACCP. We conclude by describing the exponential Puiseux monoids that are semirings.
description: 17 pages. The exposition of the paper was improved. This version will appear in Communications in Algebra
Direct and Indirect Effects of Public Infrastructure on Regional Economic Growth in Japan: An Application of the Covariance Structure Model by Geographical Classification Area
Creators: name: Kunimitsu, Yoji
name: Kunimitsu, Yoji
Publisher: name: Unknown
Year: 2005
Subjects: Public Economics

description: The direct and indirect effects of public infrastructure (PI) were evaluated by a covariance structure model. Empirical results showed the positive indirect effect, crowding-in effect, as well as the direct effect as an input factor, differences of these effects by the geographical areas and periods.
On a homotopy relation between the 2-local geometry and the Bouc complex for the sporadic group McL
Creators: name: Maginnis, John
name: Onofrei, Silvia
Publisher: name: arXiv
Year: 2005
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 20G05 (Primary); 20C20, 51D20 (Secondary)

description: We study the homotopy relation between the standard 2-local geometry and the Bouc complex for the sporadic finite simple group McL.
description: 8 pages, 2 tables, final version to appear in Archiv der Mathematik
An innovative decision-making framework for evaluating transportation service providers based on sustainable criteria
Creators: name: Ananna Paul
name: Md. Abdul Moktadir
name: Sanjoy Kumar Paul
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Pharmacology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Science Policy

description: Evaluating transportation service providers is an applied and multi-criteria decision-making problem. To ensure supply chain sustainability, it is important to consider all sustainable criteria for assessing and evaluating transport service providers. This paper aims to develop a new decision-making framework to evaluate transport service providers considering sustainable criteria from economic, environmental, social and operational aspects. The decision-making framework integrates both qualitative expert opinion and quantitative best-worst method (BWM) and VIsekriterijumska optimizacija i KOmpromisno Resenje (VIKOR) method. The developed framework contributes to the academic literature by expanding the knowledge in supply chain sustainability by considering all possible sustainable criteria and integrating both qualitative and quantitative methods for evaluating transport service providers. This study also contributes to practice by developing a decision support tool, by which decision-makers can make an accurate, systematic and prompt decision to identify and assess sustainable criteria and to evaluate the priority of different transport service providers.
The scale-dependence of relative galaxy bias: encouragement for the halo model description
Creators: name: Blanton, Michael R.
name: Eisenstein, Daniel J.
name: Hogg, David W.
name: Zehavi, Idit
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the relationship between the colors, luminosities, and environments of galaxies in the Sloan Digital Sky Survey spectroscopic sample, using environmental measurements on scales ranging from 0.2 to 6 Mpc/h. We find: (1) that the relationship between color and environment persists even to the lowest luminosities we probe (absolute magnitude in the r band of about -14 for h=1); (2) at luminosities and colors for which the galaxy correlation function has a large amplitude, it also has a steep slope; and (3) in regions of a given overdensity on small scales (1 Mpc/h), the overdensity on large scales (6 Mpc/h) does not appear to relate to the recent star formation history of the galaxies. Of these results, the last has the most immediate application to galaxy formation theory. In particular, it lends support to the notion that a galaxy's properties are related only to the mass of its host dark matter halo, and not to the larger scale environment.
description: submitted to ApJ; full resolution figures and slide material available at http://cosmo.nyu.edu/blanton/scale_density.html
Effect of particle size distribution on polydisperse hard disks
Creators: name: Ruiz, Pablo Sampedro
name: Ni, Ran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using Monte Carlo simulations, we systematically investigate the effect of particle size distribution on the phase behaviour of polydisperse hard disks. Compared with the commonly used Gaussian-like polydisperse hard disks [Commun. Phys. 2, 70 (2019)], we find that the phase behaviour of polydisperse hard-disk systems with lognormal and triangle distributions are significantly different. In polydisperse hard-disk systems of lognormal distributions, although the phase diagram appears similar to that of Gaussian-like polydisperse hard disks, the re-entrant melting of hexatic or solid phase can not be observed in sedimentation experiments. For polydisperse hard-disk systems of triangle distributions, the phase behaviour is qualitatively different from the Gaussian-like and lognormal distributions, and we can not reach any system of true polydispersity larger than 0.06, which is due to the special shape of the triangle distribution. Our results suggest that the exact particle size distribution is of primary importance in determining the phase behaviour of polydisperse hard disks, and we do not have a universal phase diagram for different polydisperse hard-disk systems.
description: Accepted in J. Chem. Phys
Resonance contributions $ϕ(1020,1680)\to K\bar K$ for the three-body decays $B\to K\bar K h$
Creators: name: Fan, Ying-Ying
name: Wang, Wen-Fei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the contributions for the $K^+K^-$ and $K^0\bar K^0$ originated from the intermediate states $ϕ(1020)$ and $ϕ(1680)$ in the charmless three-body decays $B\to K\bar K h$, with $h=(π, K)$, in the perturbative QCD approach. The subprocesses $ϕ(1020,1680)\to K\bar K$ are introduced into the distribution amplitudes of $K\bar K$ system via the kaon electromagnetic form factors with the coefficients taken from the fitted results. The predictions of the branching fractions for the decays $B\toϕ(1680)h$ with the intermediate state $ϕ(1680)$ decays into $K^+K^-$ or $K^0\bar K^0$ are about $6\%$-$8\%$ of the corresponding results for the quasi-two-body decays $B\toϕ(1020)h \to K^+ K^- h$ in this work.
description: 13 pages, 2 figures
three-channel-CNN application example for CL prediction on ARF
Creators: name: 顾珍煜
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 330301
subject: Data visualisation and computational (incl. parametric and generative) design

description: In this example, excessively triggering the boundary correction step shown in line 40 leads to significant errors. Therefore, we strongly recommend using smaller attraction and inertia coefficients or modifying the boundary modification strategy in line 40. Please forgive us for not intending to release the training program for this neural network. If you are interested in this research, feel free to send an email to the corresponding author or to me at: 1084886676@qq.com.
Case Studies of Strategic Alliances in Southeastern Beef Production
Creators: name: Gillespie, Jeffrey M.
name: Bu, Angel
name: Boucher, Robert W.
name: Gillespie, Jeffrey M.
name: Bu, Angel
name: Boucher, Robert W.
Publisher: name: Unknown
Year: 2005
Subjects: Livestock Production/Industries

description: Three calf marketing and three commercial beef carcass strategic alliances were examined via case study to determine alliance structure and whether each addressed risk, transaction costs, capital availability, and other concerns. The alliances reduced transaction costs and increased information flow among segments, but did not specifically address risk.
Examining freight performance of third-party logistics providers within the automotive industry in India: an environmental sustainability perspective
Creators: name: Mohit Goswami
name: Arijit De
name: Habibi, Muhammad Khoirul Khakim
name: Yash Daultani
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The purpose of this study is to examine relationships between measures of sustainable freight transport performance (in the context of mid-sized third-party auto components’ logistics players) with the associated externalities and firms’ intrinsic characteristics when information exchange occurs between logistics firms and the auto manufacturer. Employing a survey-based research methodology, appropriate data were collected for a number of third-party logistics players, thus yielding a total of 708 responses from the operational managers of these firms. The research construct was validated through a rigorous procedure involving measurement and structural equation model. From a theoretical perspective, the results of this study provide evidences supporting systemic relationships between internal enablers of the logistics firms and externalities in the backdrop of environmental sustainability. Major findings indicate that transportation planning and distribution network and, commodity considerations backed by top management support can further environmental performance. Further, we also find evidence that effective transport planning and distribution network design used in conjunction with commodity considerations can be a source of sustainable supply chain performance. By bridging the literature pertaining to environmental sustainability, information exchange, and pertinent external/internal nuances of logistics firms, this study reveals novel findings that can help logistics players streamline operations focused at achieving environmental sustainability performance.
Common Trends, Common Cycles, and Price Relationships in the International Fiber Market - Evidence from a Seemingly Unrelated Structural Time Series
Creators: name: Fadiga, Mohamadou L.
name: Misra, Sukant K.
name: Fadiga, Mohamadou L.
name: Misra, Sukant K.
Publisher: name: Unknown
Year: 2005
Subjects: subject: International Relations/Trade
subject: Unobserved components
subject: state-space
subject: Kalman filter
subject: fiber prices
subject: cofeature

description: This study shows that the stochastic process that governs price fluctuations in the international fiber market has transitory and permanent components. The results also indicate structural relationships between cotton price and wool price, wool price and oil price, rayon price and cotton price, and between polyester price and cotton price.
Factors Impacting Farm Growth
Creators: name: Villatora, Mario
name: Langemeier, Michael R.
name: Villatora, Mario
name: Langemeier, Michael R.
Publisher: name: Unknown
Year: 2005
Subjects: Farm Management

description: This paper examined the relative importance of farm size, farm type, managerial ability, capital structure, operator age, family size, and off-farm income in explaining farm growth rates. Farm type, managerial ability, and operator age were significantly related to farm growth rates.
EXAMINING THE FED CATTLE CHOICE-SELECT DISCOUNT
Creators: name: Hogan, Robert J.
name: Ward, Clement E.
name: Hogan, Robert J.
name: Ward, Clement E.
Publisher: name: Unknown
Year: 2005
Subjects: Livestock Production/Industries

description: The choice-select discount in fed cattle pricing grids is a significant factor in determining the net grid price. Cursory analysis of data since 1997 evidences a structural change approximately when USDA-AMS mandatory price reporting began. This is important for producers/feeders deciding when to feed and market fed cattle.
Genuine Quantum Chaos and Physical Distance Between Quantum States
Creators: name: Wang, Zhenduo
name: Wang, Yijie
name: Wu, Biao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that there is genuine quantum chaos despite that quantum dynamics is linear. This is revealed by introducing a physical distance between two quantum states. Qualitatively different from existing distances for quantum states, for example, the Fubini-Study distance, the physical distance between two mutually orthogonal quantum states can be very small. As a result, two quantum states, which are initially very close by physical distance, can diverge from each other during the ensuing quantum dynamical evolution. We are able to use physical distance to define quantum Lyaponov exponent and quantum chaos measure. The latter leads to quantum analogue of the classical Poincaré section, which maps out the regions where quantum dynamics is regular and the regions where quantum dynamics is chaotic. Three different systems, kicked rotor, three-site Bose-Hubbard model, and spin-1/2 XXZ model, are used to illustrate our results.
description: 13 pages, 12 figures
Universal 2-3 symmetry
Creators: name: Joshipura, Anjan S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Possible maximal mixing seen in the oscillations of the atmospheric neutrinos has led to postulate of a $μ$-$τ$ symmetry which interchanges $ν_μ$ and $ν_τ$. We argue that such symmetry need not be special to neutrinos but can be extended to all fermions. The assumption that all fermion mass matrices are approximately invariant under interchange of the second and the third generation fields is shown to be phenomenologically viable and has interesting consequences. In the quark sector, the smallness of $V_{ub}$ and $V_{cb}$ can be a consequences of this approximate 2-3 symmetry. The same approximate symmetry can simultaneously lead to large atmospheric mixing angle and can describe the leptonic mixing quite well provided the neutrino spectrum is quasi degenerate. We present this scenario, elaborate on its consequences and discuss its realization.
description: 13 pages, 1 figure
MAKTABGACHA YOSHDAGI BOLALAR NING AQLIY TAFAKKURINI RIVOJLANTIRISHDA INTERFAOL METODLARDAN FOYDALANISH
Creators: name: Suvanova, Sevara
Publisher: name: Zenodo
Year: 2024

description: Bugungi kunda maktabgacha ta’lim tizimiga katta e’tibor qaratilmoqda. Ushbu maqolada maktabgacha ta’lim tizimida olib borilgan ishlar hamda, maktabgacha yoshdagi bolajonlarda interfaol texnologiya va metodlarni qo‘llab ko‘rish haqida so‘z boradi.
Impact of the Adoption of Less Tillage Practices on Overall Efficiency
Creators: name: Langemeier, Michael R.
name: Langemeier, Michael R.
Publisher: name: Unknown
Year: 2005
Subjects: Farm Management

description: This paper evaluated the impact of the adoption of less tillage practices on the overall efficiency of a sample of Kansas farms. The paper also explored the relationship between overall efficiency, farm size, and less tillage. Farms that have adopted less tillage practices were relatively more efficient.
Competencies of Entry-Level College Graduate Employees in Agribusiness
Creators: name: Miller, Stephen E.
name: Davis, Todd D.
name: Ferreira, Wilder N.
name: Fredendall, Lawrence D.
name: Nilson, Linda B.
name: Miller, Stephen E.
name: Davis, Todd D.
name: Ferreira, Wilder N.
name: Fredendall, Lawrence D.
name: Nilson, Linda B.
Publisher: name: Unknown
Year: 2005
Subjects: Teaching/Communication/Extension/Profession

description: Agribusinesses firms were surveyed to assess the competencies of their recent college-graduate employees according to whether the employees had agricultural or business degrees. Both graduate types received high average ratings for their computer skills and low average ratings for their knowledge of cultural and economic differences in international business.