cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
La Resistenza a Firenze tra celebrazione e attualizzazione politica
Creators: name: Contini, Giovanni
Publisher: name: Annali di Storia di Firenze
Year: 2011

description: La Resistenza è stata fondamentale nelle vicende politiche e culturali dell’Italia repubblicana. Per questo la sua memoria pubblica è stata più volte utilizzata come esempio, positivo o negativo, da parte dei partiti. In essa alcuni leggevano la prima epifania di un programma democratico e socialmente avanzato, altri al contrario vi trovavano le premesse di un rischio totalitario. Anche la memoria pubblica del giorno della liberazione di Firenze (11 agosto ’44), intrecciata con quella della data della Liberazione d’Italia (25 aprile ’45), ha conosciuto un destino di questo tipo. Il saggio ripercorre quindi la memoria pubblica fiorentina e le manifestazioni (o l’assenza di manifestazioni, o le provocazioni neofasciste) in occasione delle due celebrazioni. E mette in evidenza come, assai presto, la vicenda reale dei giorni della Liberazione si sfocasse, e sempre più nettamente invadessero il campo considerazioni e paralleli con la situazione del presente.
description: Annali di Storia di Firenze, Vol. 5 (2010)
Patellapis (Chaetalictus) drakensbergensis Timmermann & Kuhlmann 2009, sp. n.
Creators: name: Timmermann, Kim
name: Kuhlmann, Michael
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Patellapis
Patellapis drakensbergensis

description: Patellapis (Chaetalictus) drakensbergensis sp. n. Timmermann
(Figs. 96a–d)
 Diagnosis. The female is unknown. The male is characterised by the lack of hairs on the dorso-lateral projection of the gonostylus, which is a character also occurring in P. minima. Both are easy to distinguish by the structure of the scutal surface, which is finely reticulate in P. minima and coarsely reticulate in P. drakensbergensis.
 Description
 Female. Unknown.
 Male. Bl = 4,2mm. General habitus (Fig. 96d). Head. L = 1,4mm; W = 1,4mm. Head as wide as long (Fig. 96a). Integument black except mandibles partly reddish-brown. Clypeus, supraclypeal area, paraocular area and vertex covered with erect, greyish hairs. Mandibles simple. Antennae brownish-black. Flagellomeres of normal structure (not knotty). A4 as long as A3. Mesosoma. L = 0,8mm; W (ITS) = 0,9mm. Integument black. Scutum slightly dull; densely punctate (i = d); surface coarsely reticulate (Fig. 96b). Scutellum as illustrated in Fig. 96c. Scutum, scutellum, metanotum, mesepisternum and propodeum with greyish, erect hairs. Pronotal lobe reddish-brown. Basal area of propodeum as illustrated in Fig. 96c; propodeum slightly dull; coarsely sculptured. Marginal region of posterior truncation slightly dull; extensively wrinkled. Wings. Hyaline. Legs. Integument reddish-brown. Vestiture greyish. Metasoma. L = 2,1mm; W = 1,1mm. Integument brownish-black except the margins of T pallid brown; margins of T broadly translucent. Apical plate broad; pointed apically. Posterior margin of S4 without bristles. Metasomal sterna S5–S6 without dense hair patches. Genitalia. Gonocoxa extensively dull; gonostylus with dorso-lateral, long and slender projection; projection hairless.
 Type material (1 specimen). Holotype, male, Free State, Van Reenen, xii.1926, leg. R. E. Turner, Brit.
Mus. 1927–25, BMNH.
 Etymology. Named after the Drakensberg Mountains in eastern South Africa..
 Distribution (Fig. 100). Only known from Van Reenen (Free State).
 Floral visitation. Unknown.
 Seasonal activity (first–last observations). xii.
description: Published as part of Timmermann, Kim & Kuhlmann, Michael, 2009, Variable Selection and Inference for Multi-period Forecasting Problems, pp. 1-188 in Zootaxa 2099 on pages 137-138, DOI: 10.17863/cam.5647, http://zenodo.org/record/5311462
Determination of minimum inhibitory concentration and half maximal inhibitory concentration of antibiotics and their degradation products to assess the eco-toxicological potential
Creators: name: Voigt, Melanie
name: Bartels, Indra
name: Nickisch-Hartfiel, Anna
name: Jaeger, Martin
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: Numerous studies have been reported on today’s ubiquitous presence of antibiotics in surface waters causing the emergence of multidrug-resistant bacteria. Advanced water treatment procedures aim at the complete prevention and elimination of antibiotics from entering natural water bodies. In this study, photoinduced degradation processes using UVC-irradiation were applied toward selected fluoroquinolone, tetracycline, macrolide, and sulfonamide antibiotics. Photodegradation products were elucidated using high-performance liquid chromatography coupled with mass spectrometry (HPLC-MS). Rate constants and quantum efficiencies were determined for the active substances and their photo-transformation products. As a measure of ecotoxicity, minimum inhibitory and half-maximal inhibitory concentrations were determined against the Gram-negative bacterium Pseudomonas fluorescens and the Gram-positive Bacillus subtilis in a standard assay format. These values were further recorded as a function of UV exposure time. The irradiation time-dependent increase of minimum inhibitory concentration (MIC) values agreed well with the kinetic models. After 10 min of irradiation, the compound solutions ceased to inhibit bacterial cell growth, indicating removal of the pharmaceutical activity. These findings were found in agreement with quantitative structure–activity relationship analysis. The combination of microbiological activity testing, molecular structure analysis, chemical kinetic investigation, and quantitative structure–activity relationship models proved to be able to predict irradiation times and evaluate potential ecotoxicological hazard of the irradiated drugs.
Neutrino masses with a single generation in the bulk
Creators: name: Frere, J. -M.
name: Libanov, M. V.
name: Troitsky, S. V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a class of multidimensional models, topology of the thick brane provides three chiral fermionic families with hierarchical masses and mixings in the effective four-dimensional theory, while the full model contains a single vector-like generation. We discuss how to incorporate three non-degenerate neutrino masses in these models with the help of only one singlet bulk fermion.
description: 16 pages, 1 EPS figure
Traversable Asymptotically Flat Wormholes with Short Transit Times
Creators: name: Fu, Zicao
name: Grado-White, Brianna
name: Marolf, Donald
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct traversable wormholes by starting with simple four-dimensional classical solutions respecting the null energy condition and containing a pair of oppositely charged black holes connected by a non-traversable wormhole. We then consider the perturbative back-reaction of bulk quantum fields in Hartle-Hawking states. Our geometries have zero cosmological constant and are asymptotically flat except for a cosmic string stretching to infinity that is used to hold the black holes apart. Another cosmic string wraps the non-contractible cycle through the wormhole, and its quantum fluctuations provide the negative energy needed for traversability. Our setting is closely related to the non-perturbative construction of Maldacena, Milekhin, and Popov (MMP), but the analysis is complementary. In particular, we consider cases where back-reaction slows, but fails to halt, the collapse of the wormhole interior, so that the wormhole is traversable only at sufficiently early times. For non-extremal backgrounds, we find the integrated null energy along the horizon of the classical background to be exponentially small, and thus traversability to be exponentially fragile. Nevertheless, if there are no larger perturbations, and for appropriately timed signals, a wormhole with mouths separated by a distance $d$ becomes traversable with a minimum transit time $t_{\text{min transit}} = d + \text{logs}$. Thus $\frac{t_{\text{min transit}}}{d}$ is smaller than for the eternally traversable MMP wormholes by more than a factor of 2, and approaches the value that, at least in higher dimensions, would be the theoretical minimum. For contrast we also briefly consider a `cosmological wormhole' solution where the back-reaction has the opposite sign, so that negative energy from quantum fields makes the wormhole harder to traverse.
description: 23 pages, 5 figures
Contributo alla storia della meteorologia a Firenze. Le osservazioni meteorologiche fiorentine fra il 1751 e il 1813
Creators: name: Vergari, Daniele
Publisher: name: Annali di Storia di Firenze
Year: 2011

description: L’articolo vuole approfondire il ruolo della comunità scientifica fiorentina nella sto- ria della meteorologia fra la seconda metà del XVIII secolo e il 1813, anno in cui inizia la raccolta di dati presso l’osservatorio Ximeniano. Tale raccolta è realizzata da medici e scienziati, come Giovanni Targioni Tozzetti, Alessandro Bicchierai e Pietro Grifoni, che operano all’interno di una vasta rete cittadina di istituzioni scientifiche (dall’Accademia dei Georgofili all’Imperiale Museo di Fisica, all’Arcispedale di Santa Maria Nuova). È un periodo importante per l’evoluzione della scienza meteorologica che passa da una visione tradizionale - frutto dell’esperienza dell’Accademia del Cimento – ad una nuova visione che analizzerà con maggiore consapevolezza il rapporto fra eventi meteorici e climatici e il loro impatto sugli organismi viventi, dando origine alle basi della nuova meteorologia scientifica.
description: Annali di Storia di Firenze, Vol. 1 (2006)
Search and rescue at sea aided by hidden flow structures
Creators: name: Serra, Mattia
name: Sathe, Pratik
name: Rypina, Irina
name: Kirincich, Anthony
name: Ross, Shane D.
name: Lermusiaux, Pierre
name: Allen, Arthur
name: Peacock, Thomas
name: Haller, George
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Dynamical Systems (math.DS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Every year hundreds of people die at sea because of vessel and airplane accidents. A key challenge in reducing the number of these fatalities is to make Search and Rescue (SAR) algorithms more efficient. Here we address this challenge by uncovering hidden TRansient Attracting Profiles (TRAPs) in ocean-surface velocity data. Computable from a single velocity-field snapshot, TRAPs act as short-term attractors for all floating objects. In three different ocean field experiments, we show that TRAPs computed from measured as well as modelled velocities attract deployed drifters and manikins emulating people fallen in the water. TRAPs, which remain hidden to prior flow diagnostics, thus provide critical information for hazard responses, such as SAR and oil spill containment, and hence have the potential to save lives and limit environmental disasters.
SCAttNet: Semantic Segmentation Network with Spatial and Channel Attention Mechanism for High-Resolution Remote Sensing Images
Creators: name: Li, Haifeng
name: Qiu, Kaijian
name: Chen, Li
name: Mei, Xiaoming
name: Hong, Liang
name: Tao, Chao
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: High-resolution remote sensing images (HRRSIs) contain substantial ground object information, such as texture, shape, and spatial location. Semantic segmentation, which is an important task for element extraction, has been widely used in processing mass HRRSIs. However, HRRSIs often exhibit large intraclass variance and small interclass variance due to the diversity and complexity of ground objects, thereby bringing great challenges to a semantic segmentation task. In this paper, we propose a new end-to-end semantic segmentation network, which integrates lightweight spatial and channel attention modules that can refine features adaptively. We compare our method with several classic methods on the ISPRS Vaihingen and Potsdam datasets. Experimental results show that our method can achieve better semantic segmentation results. The source codes are available at https://github.com/lehaifeng/SCAttNet.
description: 5 pages, 3 figures, 2 tables
Valley notch filter in a graphene strain superlattice: Green's function and machine learning approach
Creators: name: Torres, V.
name: Silva, P.
name: de Souza, E. A. T.
name: Silva, L. A.
name: Bahamon, D. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The valley transport properties of a superlattice of out-of-plane Gaussians deformations are calculated using a Green's function and a Machine Learning approach. Our results show that periodicity significantly improves the valley filter capabilities of a single Gaussian deformation, these manifest themselves in the conductance as a sequence by valley filter plateaus. We establish that the physical effect behind the observed valley notch filter is the coupling between counter-propagating transverse modes; the complex relationship between the design parameters of the superlattice and the valley filter effect make difficult to estimate in advance the valley filter potentialities of a given superlattice. With this in mind, we show that a Deep Neural Network can be trained to predict valley polarization with a precision similar to the Green's function but with much less computational effort.
description: 11 pages, 9 figures
When land markets 'do not work' and status-quo agrarian structures persist: A case study from rural Albania
Creators: name: Qineti, Artan
name: Rajcaniova, Miroslava
name: Braha, Kushtrim
name: Ciaian, Pavel
name: Demaj, Jona
name: Qineti, Artan
name: Rajcaniova, Miroslava
name: Braha, Kushtrim
name: Ciaian, Pavel
name: Demaj, Jona
Publisher: name: Unknown
Year: 2014
Subjects: subject: Land Economics/Use
subject: land market
subject: transition
subject: property rights insecurity
subject: Albania

description: This paper provides micro-analyses of land market development after two decades of Albanian transition. We use data from a survey conducted in four Albanian villages during May 2013. The results indicate that land markets are highly rigid with almost no structural changes took place over the last two decades. Sale markets are almost non-existent due to property rights insecurity and prevalence of subsistence farming in rural Albania. Rental markets are more sizable but due to property rights insecurity and monitoring problem of absentee landowners, the vast majority of rental arrangements are between family relatives.
Observable Consequences of Partially Degenerate Leptogenesis
Creators: name: Ellis, John
name: Raidal, Martti
name: Yanagida, T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of the seesaw mechanism, it is natural that the large solar and atmospheric neutrino mixing angles originate separately from large 2 by 2 mixings in the neutrino and charged-lepton sectors, respectively, and large mixing in the neutrino couplings is in turn more plausible if two of the heavy singlet neutrinos are nearly degenerate. We study the phenomenology of this scenario, calculating leptogenesis by solving numerically the set of coupled Boltzmann equations for out-of-equilibrium heavy singlet neutrino decays in the minimal supersymmetric seesaw model. The near-degenerate neutrinos may weigh < 10^8 GeV, avoiding the cosmological gravitino problem. This scenario predicts that Br(mu to e gamma) should be strongly suppressed, because of the small singlet neutrino masses, whilst Br(tau to mu gamma) may be large enough to be observable in B-factory or LHC experiments. If the light neutrino masses are hierarchical, we predict that the neutrinoless double-beta decay parameter m_{ee} is approximately sqrt{Delta m_{sol}^2} times sin^2 theta_{12}.
description: 15 pages, 3 eps figures
Social psychology and biodiversity conservation in agriculture
Creators: name: Wauters, Erwin
name: D'Haene, Karoline
name: Lauwers, Ludwig H.
name: Wauters, Erwin
name: D'Haene, Karoline
name: Lauwers, Ludwig H.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Environmental Economics and Policy
subject: biodiversity conservation
subject: farmers behaviour
subject: theory of planned behaviour
subject: path analysis

description: We investigate farmers’ intentions to apply biodiversity conservation practices from psychological perspective, using an adapted version of the theory of planned behaviour (TPB), including group norms and putting emphasis on moral norms and self-identity. The study is based on a quantitative survey (n = 106) in Belgium, analyzed using confirmatory factor analyses and path analysis. Results show that the impact of attitudes, social norms and perceived behavioural control on intentions is almost fully mediated through moral norms and self-identity. To have a sustained impact, change actions should strive to embed biodiversity conservation into the social norms and into the good farmer identity of the farming community.
Reservoir engineering of Cooper-pair-assisted transport with cold atoms
Creators: name: Damanet, François
name: Mascarenhas, Eduardo
name: Pekker, David
name: Daley, Andrew J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We show how Cooper-pair-assisted transport, which describes the stimulated transport of electrons in the presence of Cooper-pairs, can be engineered and controlled with cold atoms, in regimes that are difficult to access for condensed matter systems. Our model is a channel connecting two cold atomic gases, and the mechanism to generate such a transport relies on the coupling of the channel to a molecular BEC, with diatomic molecules of fermionic atoms. Our results are obtained using a Floquet-Redfield master equation that accounts for an exact treatment of the interaction between atoms in the channel. We explore, in particular, the impact of the coupling to the BEC and the interaction between atoms in the junction on its transport properties, revealing non-trivial dependence of the produced particle current. We also study the effects of finite temperatures of the reservoirs and the robustness of the current against additional dissipation acting on the junction. Our work is experimentally relevant and has potential applications to dissipation engineering of transport with cold atoms, studies of thermoelectric effects, quantum heat engines, or Floquet Majorana fermions.
description: 13 pages and 4 figures (main) + 10 pages (appendices). Close to the published version
A next-to-leading order analysis of deeply virtual Compton scattering
Creators: name: Freund, A.
name: McDermott, M. F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a complete, next-to-leading-order (NLO), leading-twist QCD analysis of deeply virtual Compton scattering (DVCS) observables, in the ${\bar {MS}}$ scheme, and in the kinematic ranges of the H1, ZEUS and HERMES experiments. We use a modified form of Radyushkin's ansatz for the input model for the generalized parton distributions. We present results for leading order (LO) and NLO for representative observables and find that they compare favourably to the available data.
description: 5 pages, 2 figures, revtex, published version, we modify Radyushkin's ansatz for the GPDs to correct for finite hadronic mass effects, and, using the latest MRST PDFs, now agree with the H1 data (modified figs). Typo in Eq.(3) corrected
KiDS+VIKING-450 and DES-Y1 combined: Mitigating baryon feedback uncertainty with COSEBIs
Creators: name: Asgari, Marika
name: Tröster, Tilman
name: Heymans, Catherine
name: Hildebrandt, Hendrik
name: Busch, Jan Luca van den
name: Wright, Angus H.
name: Choi, Ami
name: Erben, Thomas
name: Joachimi, Benjamin
name: Joudaki, Shahab
name: Kannawadi, Arun
name: Kuijken, Konrad
name: Lin, Chieh-An
name: Schneider, Peter
name: Zuntz, Joe
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present cosmological constraints from a joint cosmic shear analysis of the Kilo-Degree Survey (KV450) and the Dark Energy Survey (DES-Y1), conducted using Complete Orthogonal Sets of E/B-Integrals (COSEBIs). With COSEBIs we isolate any B-modes which have a non-cosmic shear origin and demonstrate the robustness of our cosmological E-mode analysis as no significant B-modes are detected. We highlight how COSEBIs are fairly insensitive to the amplitude of the non-linear matter power spectrum at high $k$-scales, mitigating the uncertain impact of baryon feedback in our analysis. COSEBIs, therefore, allow us to utilise additional small-scale information, improving the DES-Y1 joint constraints on $S_8=σ_8(Ω_{\rm m}/0.3)^{0.5}$ and $Ω_{\rm m}$ by $20\%$. Adopting a flat $Λ$CDM model we find $S_8=0.755^{+0.019}_{-0.021}$, which is in $3.2σ$ tension with the Planck Legacy analysis of the cosmic microwave background.
description: Accepted for publication in A&A. 15 pages, 7 figures
Delocalization in two and three-dimensional Rydberg gases
Creators: name: Abumwis, Ghassan
name: Eiles, Matthew T.
name: Eisfeld, Alexander
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: As was recently shown in Ref. 1, many eigenstates of a random Rydberg gas with resonant dipole-dipole interactions are highly delocalized. Although the high degree of delocalization is generic to various types of power-law interactions and to both two and three-dimensional systems, in their detailed aspects the coherence distributions are sensitive to these parameters and vary dramatically between different systems. We calculate the eigenstates of both two and three-dimensional gases and quantify their delocalization throughout the atoms in the gas using a coherence measure. By contrasting the angular dependence of the dipole-dipole interaction with an isotropic interaction we obtain additional information about the generic physical principles underlying random interacting systems. We also investigate the density of states and microwave absorption spectra to obtain information about the types of measurements where these delocalized states play a role, and to check that these delocalized eigenstates are robust against various types of perturbation.
Black - Scholes Models Investment Evaluation for Potato Processing
Creators: name: Pazek, Karmen
name: Rozman, Crtomir
name: Kolenko, Matej
name: Pazek, Karmen
name: Rozman, Crtomir
name: Kolenko, Matej
Publisher: name: Unknown
Year: 2013
Subjects: Agricultural and Food Policy
Land Economics/Use

description: A common method used for evaluation of investment projects is the Cost Benefit Analysis (CBA). Desiring to have insight into the core of investment, the optional modules with real options are becoming more in use, which represent the stochastic approach. The basic purpose of this research was therefore to display applications of methods real options in agriculture. Results of the traditional CBA with the parameter NPVt showed the production of processed potatoes in cubes is the most suitable. For the assessment of real options investment projects of processing potatoes the Black Scholes model have been used further used. Option value (OV) to the Black-Scholes (BS) model show positive values for all three types of processing (french fries, slices and cubes). However, real options have important value, because the traditional methods of investment analysis are upgraded to the methods of real options with stochastic terms.
Massive Quark Propagator in the Color-superconducting Phase
Creators: name: Huang, Mei
name: Zhaung, Pengfei
name: Chao, Weiqin
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A more general expression for the quark propagator including both chiral and diquark condensates has been derived by using energy projectors. This makes it possible to study the phase transition from hadron phase to color superconductivity phase in the moderate baryon density region by using Feynman diagrammatic method or Green-function method.
description: Revtex, 3 pages, no figures, revised version accepted by Chin.Phys.Lett
Realization of Brane Descent Relations in Effective Theories
Creators: name: Hashimoto, Koji
name: Nagaoka, Satoshi
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine Sen's descent relations among (non-)BPS D-branes by using low energy effective field theories of DpDpbar system. We find that the fluctuation around the kink solution reproduces the low energy matter content on a non-BPS D(p-1)-brane. The effective action for these fluctuation modes turns out to be a generalization of Minahan-Zwiebach model. In addition, it is shown that the fluctuations around the vortex solution consist of massless fields on a BPS D(p-2)-brane and they are subject to Dirac-Born-Infeld action. We find the universality that the above results do not refer to particular forms of the effective action.
description: 24 pages, LaTeX, 1 eps figure; v2:minor corrections
Strong first-order phase transitions in the NMSSM --- a comprehensive survey
Creators: name: Athron, Peter
name: Balazs, Csaba
name: Fowlie, Andrew
name: Pozzo, Giancarlo
name: White, Graham
name: Zhang, Yang
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the fact that the Next-to-Minimal Supersymmetric Standard Model is one of the most plausible models that can accommodate electroweak baryogenesis, we analyze its phase structure by tracing the temperature dependence of the minima of the effective potential. Our results reveal rich patterns of phase structure that end in the observed electroweak symmetry breaking vacuum. We classify these patterns according to the first transition in their history and show the strong first-order phase transitions that may be possible in each type of pattern. These could allow for the generation of the matter-antimatter asymmetry or potentially observable gravitational waves. For a selection of benchmark points, we checked that the phase transitions completed and calculated the nucleation temperatures. We furthermore present samples that feature strong first-order phase transitions from an extensive scan of the whole parameter space. We highlight common features of our samples, including the fact that the Standard Model like Higgs is often not the lightest Higgs in the model.
description: 41 pages, 13 figures. V3: corrected typos and extended discussion about Higgs masses. Accepted in JHEP
OJAFR 9(5) 206-211, 2019.pdf
Creators: name: Nchele KULEIL,
name: Itumeleng METSING
name: Calelane TJALA
name: Teboho JOBO
Publisher: name: figshare
Year: 2019
Subjects: subject: 70204 Animal Nutrition
subject: FOS: Animal and dairy science

description: ABSTRACT: The study was implemented at the National University of Lesotho with the aim to find a potential litter material for use in broiler production. The study followed a completely randomized design with four litter treatments replicated three times.
Scoping, Design and Recommendations for Development of a Food Hub in the City of Casey
Creators: name: Open Food Network
Publisher: name: figshare
Year: 2019
Subjects: subject: 91010 Packaging, Storage and Transportation (excl. Food and Agricultural Products)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Scoping, Design and Recommendations for Development of a Food Hub in the City of Casey
A fast method for particle tracking and triggering using small-radius silicon detectors
Creators: name: Kotwal, Ashutosh V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose an algorithm, deployable on a highly-parallelized graph computing architecture, to perform rapid reconstruction of charged-particle trajectories in the high energy collisions at the Large Hadron Collider and future colliders. We use software emulation to show that the algorithm can achieve an efficiency in excess of 99.95% for reconstruction with good accuracy. The algorithm can be implemented on silicon-based integrated circuits using field-programmable gate array technology. Our approach can enable a fast trigger for massive charged particles that decay invisibly in the tracking volume, as in some new-physics scenarios related to particulate dark matter. If production of dark matter or other new neutral particles is mediated by metastable charged particles and is not associated with other triggerable energy deposition in the detectors, our method would be useful for triggering on the charged mediators using the small-radius silicon detectors.
Viscoelastic Effect on Hydrodynamic Relaxation in Polymer Solutions
Creators: name: Furukawa, Akira
Publisher: name: arXiv
Year: 2002
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The viscoelastic effect on the hydrodynamic relaxation in semidilute polymer solutions is investigated. From the linearized two-fluid model equations, we predict that the dynamical asymmetry coupling between the velocity fluctuations and the viscoelastic stress influences on the hydrodynamic relaxation process, resulting in a wave-number-dependent shear viscosity.
description: 7pages; To be published in Journal of the Physical Society of Japan,Vol 72,No2,(2003)
Does non-cavity distorting intramural fibroid affect endometrium around the time of embryo implantation?
Creators: name: Yang, Haiyan
name: Chen, Xiaoyan
name: Liu, Yingyu
name: Luo, Jing
name: Huang, Rui
name: Zhao, Yiwei
name: Li, Tin-Chiu
name: Huang, Xiaowu
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: The effect of the intramural fibroids not distorting the cavity remains controversial on implantation and pregnancy. The aim of this study was to examine the impact of non-cavity distorting intramural fibroids on endometrium. Fifty-six women with non-cavity distorting intramural fibroid were recruited in this study. Paired endometrial specimens, one from beneath the fibroid (ipsilateral endometrium) and the other from the opposite side of uterine cavity, away from the fibroid (contralateral endometrium) were obtained 7–9 days after the luteinizing hormone surge in a natural cycle. Histological dating, Mucin1 and Glycodelin expression and uterine natural killer (uNK) cell density were compared between the paired samples. The median (IQR) H-score of Mucin1 staining in the ipsilateral luminal epithelium was 210% (142–230%), which was significantly (p < 0.05) higher than that of the contralateral luminal endometrium (157%, IQR 114–176%). There was no significant difference in Mucin1 expression in the glandular epithelium. There was no significant difference in Glycodelin expression in luminal and glandular epithelium, uNK cells density or histological dating results between the paired endometrial samples. In conclusion, it is uncertain whether the altered expression of Mucin1 in luminal epithelium alone may have impact on implantation when other markers are not changed.
The Symmetry behind Extended Flavour Democracy and Large Leptonic Mixing
Creators: name: Branco, G. C.
name: Silva-Marcos, J. I.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that there is a minimal discrete symmetry which leads to the extended flavour democracy scenario constraining the Dirac neutrino, the charged lepton and the Majorana neutrino mass term ($M_R$) to be all proportional to the democratic matrix, with all elements equal. In particular, this discreet symmetry forbids other large contributions to $M_R$, such as a term proportional to the unit matrix, which would normally be allowed by a $S_{3L}\times S_{3R}$ permutation symmetry. This feature is crucial in order to obtain large leptonic mixing, without violating 't Hooft's, naturalness principle.
description: 11 pages, LaTeX
Decision aids and systematic information processing increase disaster preparedness intentions
Creators: name: Bullock, Olivia M.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Across the world and fueled by climate change, natural disasters are increasing in their geographic distribution and intensity. The purpose of this study was to use theory, including the heuristic-systematic model, to inform how decision aids may influence persuasion about hurricane preparedness. Results indicate that decision aid selection can serve as a behavioral outcome of systematic information processing and amplify attitude and behavior change effects beyond systematic processing alone. Overall, results suggest that exposure to decision aids can facilitate persuasion about hurricane preparedness.
Revealing Hidden Substructures in the $M_{BH}$-$σ$ Diagram, and Refining the Bend in the $L$-$σ$ Relation
Creators: name: Sahu, Nandini
name: Graham, Alister W.
name: Davis, Benjamin L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using 145 early- and late-type galaxies (ETGs and LTGs) with directly-measured super-massive black hole masses, $M_{BH}$, we build upon our previous discoveries that: (i) LTGs, most of which have been alleged to contain a pseudobulge, follow the relation $M_{BH}\propto\,M_{*,sph}^{2.16\pm0.32}$; and (ii) the ETG relation $M_{BH}\propto\,M_{*,sph}^{1.27\pm0.07}$ is an artifact of ETGs with/without disks following parallel $M_{BH}\propto\,M_{*,sph}^{1.9\pm0.2}$ relations which are offset by an order of magnitude in the $M_{BH}$-direction. Here, we searched for substructure in the $M_{BH}$--(central velocity dispersion, $σ$) diagram using our recently published, multi-component, galaxy decompositions; investigating divisions based on the presence of a depleted stellar core (major dry-merger), a disk (minor wet/dry-merger, gas accretion), or a bar (evolved unstable disk). The Sérsic and core-Sérsic galaxies define two distinct relations: $M_{BH}\proptoσ^{5.75\pm0.34}$ and $M_{BH}\proptoσ^{8.64\pm1.10}$, with $Δ_{rms|BH}=0.55$ and $0.46$~dex, respectively. We also report on the consistency with the slopes and bends in the galaxy luminosity ($L$)--$σ$ relation due to Sérsic and core-Sérsic ETGs, and LTGs which all have Sérsic light-profiles. Two distinct relations (superficially) reappear in the $M_{BH}$--$σ$ diagram upon separating galaxies with/without a disk (primarily for the ETG sample), while we find no significant offset between barred and non-barred galaxies, nor between galaxies with/without active galactic nuclei. We also address selection biases purported to affect the scaling relations for dynamically-measured $M_{BH}$ samples. Our new, (morphological type)-dependent, $M_{BH}$--$σ$ relations more precisely estimate $M_{BH}$ in other galaxies, and hold implications for galaxy/black hole co-evolution theories, and simulations. (Abridged)
description: 33 pages, 15 figures, 5 tables; Accepted for publication in Astrophysical Journal on 22 October 2019
Addressing public opinion misperceptions of racial disparities in the criminal justice system
Creators: name: Dixon, Graham
name: Holt, Lanier Frush
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Science Policy
subject: Mental Health

description: People often misperceive public opinion, challenging public engagement. Addressing mixed findings on corrective interventions, we conducted two studies on White Americans’ perception of public opinion regarding racial biases in policing practices. Majority view holders (i.e. those recognizing racial biases in policing) generally reported accurate estimates of public opinion and were unaffected by a message emphasizing public opinion statistics. However, minority view holders (i.e. those rejecting the presence of racial biases) mostly underestimated public recognition of racial biases in policing. Highlighting public opinion statistics increased this group’s awareness of racial biases, but only for those who strongly identified as Americans.
First Order Radiative Corrections to Polarized Muon Decay Spectrum
Creators: name: Arbuzov, A. B.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The first order QED corrections to the polarized muon decay spectrum are considered. The exact dependence on electron and muon masses is kept. Numerical results are presented.
description: 11 pages, elsart.cls, a typo in Eq.(12) is fixed
Generalized random matrix model with additional interactions
Creators: name: Yadav, Swapnil
name: Alam, Kazi
name: Muttalib, K. A.
name: Wang, Dong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B44, 82D30, 60B20

description: We introduce a log-gas model that is a generalization of a random matrix ensemble with an additional interaction, whose strength depends on a parameter $γ$. The equilibrium density is computed by numerically solving the Riemann-Hilbert problem associated with the ensemble. The effect of the additional parameter $γ$ associated with the two-body interaction can be understood in terms of an effective $γ$-dependent single-particle confining potential.
description: 16 pages, 12 figures
What Do We Know About the Strange Magnetic Radius?
Creators: name: Hammer, H. -W.
name: Puglia, S. J.
name: Ramsey-Musolf, M. J.
name: Zhu, Shi-Lin
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze the q^2-dependence of the strange magnetic form factor, \GMS(q^2), using heavy baryon chiral perturbation theory (HBChPT) and dispersion relations. We find that in HBChPT a significant cancellation occurs between the O(p^2) and O(p^3) loop contributions. Consequently, the slope of \GMS at the origin displays an enhanced sensitivity to an unknown O(p^3) low-energy constant. Using dispersion theory, we estimate the magnitude of this constant, show that it may have a natural size, and conclude that the low-q^2 behavior of \GMS could be dominated by nonperturbative physics. We also discuss the implications for the interpretation of parity-violating electron scattering measurements used to measure \GMS(q^2).
description: 9 pages, Revtex, 2 ps figures
Critical properties of $Φ^4_{1+1}$-theory in Light-Cone Quantization
Creators: name: Salmons, Stéphane
name: GrangÉ, Pierre
name: Werner, Ernst
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The dynamics of the phase transition of the continuum $Φ^{4}_{1+1}$-theory in Light Cone Quantization is reexamined taking into account fluctuations of the order parameter $< Φ>$ in the form of dynamical zero mode operators (DZMO) which appear in a natural way via the Haag expansion of the field $Φ(x)$ of the interacting theory. The inclusion of the DZM-sector changes significantly the value of the critical coupling, bringing it in agreement within 2% with the most recent Monte-Carlo and high temperature/strong coupling estimates. The critical slowing down of the DZMO governs the low momentum behavior of the dispersion relation through invariance of this DZMO under conformal transformations preserving the local light cone structure. The critical exponent $η$ characterising the scaling behaviour at $k^2 \to 0$ comes out in agreement with the known value 0.25 of the Ising universality class. $η$ is made of two contributions: one, analytic $(75 %$) and another (25%) which can be evaluated only numerically with an estimated error of 3%. The $β$-function is then found from the non-perturbative expression of the physical mass. It is non-analytic in the coupling constant with a critical exponent $ω=2$. However, at D=2, $ω$ is not parametrisation independent with respect to the space of coupling constants due to this strong non-analytic behaviour.
description: Latex, 22 pages, 8 Postscript figures,Appendix
Four-particle scattering amplitudes in QCD at NNLO to higher orders in the dimensional regulator
Creators: name: Ahmed, Taushif
name: Henn, Johannes
name: Mistlberger, Bernhard
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute all helicity amplitudes for four-particle scattering in massless QCD with $n_f$ fermion flavours to next-to-next-to-leading order (NNLO) in perturbation theory. In particular, we consider all possible configurations of external quarks and gluons. We evaluate the amplitudes in terms of a Laurent series in the dimensional regulator to the order required for future next-to-next-to-next-to-leading order (N$^3$LO) calculations. The coefficients of the Laurent series are given in terms of harmonic polylogarithms that can readily be evaluated numerically. We present our findings in the conventional dimensional regularisation and in the t'Hooft-Veltman schemes.
description: 22 pages, 3 figures, Journal Version, Fixed some typos
Strong Coulomb interactions in the problem of Majorana modes in a wire of the nontrivial topological class BDI
Creators: name: Aksenov, S. V.
name: Zlotnikov, A. O.
name: Shustin, M. S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this study, the problem of strong Coulomb interactions in topological superconducting wire is analyzed by means of the density-matrix-renormalization-group (DMRG) approach. To analyze properties of edge states in the BDI-class structure a quantity called Majorana polarization is used. From its dependence on wire length and an entanglement-spectrum degeneracy topological phase diagrams are obtained. The DMRG calculations for the Shubin-Vonsovsky-type model of the wire show the transformation of phases with Majorana single and double modes (MSMs and MDMs, respectively) under the increase of on- and inter-site correlations. In particular, we demonstrate different scenarios including the possibilities of both induction and suppression of the MSMs and MDMs. It is shown that in the strongly correlated regime the contributions of single-particle excitations to the Majorana-type states significantly decrease at low magnetic fields. Moreover, the $t-J^{*}-V$-model is derived allowing to study the effective interactions and improve the DMRG numerics. It is found out that in the limiting case of the effective Hamiltonian with infinitely strong on-site repulsion, $t$-model, the topological phases are destroyed. Finally, the ways to probe the MSMs and MDMs via the features of caloric functions are discussed.
description: 18 pages, 12 figures
Modeling long run relationship among GDP GGNL&B GGR & GNS.pdf
Creators: name: Md Fourkan
Publisher: name: figshare
Year: 2021
Subjects: Economics

description: In this time series study, we attempted to model Gross Domestic Product (GDP) current price as a function of general government net lending and borrowing, gross national savings, and general government revenue for Bangladesh. Our interest in this paper is to show the long run relationship among these time series variables using time series data for Bangladesh. Given vector error term is negative but not significant we could not confirm the long-term relationship among the variables. Furthermore, we performed an ARDL approach to estimate the short run relationship among the variables. In this empirical analysis, we find that lag values of GDP have significant impact on current GDP. That means lag value of GDP two-years before from now has significant impact on current year’s GDP in current price. The general government net lending and borrowing this year will have impact only after two years on GDP current price at a little above 10 percentage level, so we can say it is not having a significant effect on GDP. Current gross national savings has significant impact on current GDP along with the lag values of two-years before from now and four-years before from now of gross national savings have significant impact on current year GDP. However, general government revenue’s impact on GDP overall could not be established.