cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ribonucleocapsid assembly/packaging signals in the genomes of the coronaviruses SARS-CoV and SARS-CoV-2: Detection, comparison and implications for therapeutic targeting
Creators: name: Chechetkin, Vladimir R.
name: Lobzin, Vasily V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: The genomic ssRNA of coronaviruses is packaged within a helical nucleocapsid. Due to transitional symmetry of a helix, weakly specific cooperative interaction between ssRNA and nucleocapsid proteins leads to the natural selection of specific quasi-periodic assembly/packaging signals in the related genomic sequence. Such signals coordinated with the nucleocapsid helical structure were detected and reconstructed in the genomes of the coronaviruses SARS-CoV and SARS-CoV-2. The main period of the signals for both viruses was about 54 nt, that implies 6.75 nt per N protein. The complete coverage of ssRNA genome of length about 30,000 nt by the nucleocapsid would need 4,400 N proteins, that makes them the most abundant among the structural proteins. The repertoires of motifs for SARS-CoV and SARS-CoV-2 were divergent but nearly coincided for different isolates of SARS-CoV-2. We obtained the distributions of assembly/packaging signals over the genomes with non-overlapping windows of width 432 nt. Finally, using the spectral entropy, we compared the load from point mutations and indels during virus age for SARS-CoV and SARS-CoV-2. We found the higher mutational load on SARS-CoV. In this sense, SARS-CoV-2 can be treated as a "newborn" virus. These observations may be helpful in practical medical applications and are of basic interest.
description: 31 pages, 6 figures, 3 tables
Neutrino Mass Matrices with Vanishing Determinant and $θ_{13}$
Creators: name: Chauhan, Bhag C.
name: Pulido, Joao
name: Picariello, Marco
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the prospects for scenarios with vanishing determinant neutrino mass matrices and vanishing $θ_{13}$ mixing angle. Normal and inverse mass hierarchies are considered separately. For normal hierarchy it is found that neutrinoless double beta decay cannot be observed by any of the present or next generation experiments. For inverse hierarchy the neutrinoless double beta decay is, on the contrary, accessible to experiments. We also analyse for both hierarchies the case for texture zeros and equalities between mass matrix elements. No texture zeros are found to be possible nor any such equalities, apart from the obvious ones.
description: 14 pages, 1 figure
Предимства при приложението на афатиниб като 1-ва и 2-ра линия лечение на локално авансирал и метастатичен недребноклетъчен рак на белия дроб
Creators: name: Jeliazko Arabadjiev
name: Zlatanova, Tanya
name: Shenay Mustafa
Publisher: name: figshare
Year: 2020
Subjects: subject: 111201 Cancer Cell Biology
subject: FOS: Clinical medicine
subject: 111202 Cancer Diagnosis
subject: 111203 Cancer Genetics
subject: 111204 Cancer Therapy (excl. Chemotherapy and Radiation Therapy)
subject: 111205 Chemotherapy
subject: Health Care
subject: 111299 Oncology and Carcinogenesis not elsewhere classified

description: Разглежда ролята на мутацията в EGFR при НДРБД за лечението на 1ва и 2ра линия с афатиниб.
Uniteurs et Dominicains d'Arménie
Creators: name: Oudenrijn, Marcus Antonius Van Den
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 40 (1956): Oriens christianus, Band 40
From Painlevé to Zakharov-Shabat and beyond: Fredholm determinants and integro-differential hierarchies
Creators: name: Krajenbrink, Alexandre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: As Fredholm determinants are more and more frequent in the context of stochastic integrability, we unveil the existence of a common framework in many integrable systems where they appear. This consists in a quasi-universal hierarchy of equations, partly unifying an integro-differential generalization of the Painlevé II hierarchy, the finite-time solutions of the Kardar-Parisi-Zhang equation, multi-critical fermions at finite temperature and a notable solution to the Zakharov-Shabat system associated to the largest real eigenvalue in the real Ginibre ensemble. As a byproduct, we obtain the explicit unique solution to the inverse scattering transform of the Zakharov-Shabat system in terms of a Fredholm determinant.
description: 41 pages
Gender and Local Floodplain Management Institutions--A Case Study from Bangladesh
Creators: name: Sultana, Parvin
name: Thompson, Paul M.
name: Sultana, Parvin
name: Thompson, Paul M.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Resource /Energy Economics and Policy
subject: floodplains
subject: fisheries
subject: Community
subject: Bangladesh

description: Floodplain wetlands are the major common pool natural resource in Bangladesh. Mostly men fish, and both men and women collect aquatic plants and snails. Case studies contrast a women-only, men-only, and mixed community based organization (CBO), each of which manages a seasonal floodplain wetland. The two CBOs in which women hold key positions are in Hindu communities where more women use aquatic resources, work for an income, and belong to other local institutions. In the oldest of these CBOs, more women have gradually become office bearers as their recognition in the community has grown. In the Muslim community, only a few women collect aquatic resources and in this community most women do not perceive floodplain natural resource constraints to be very important to them. These women have no role in the CBO and feel that they have no say in decisions about the fishery, unlike many women in the other two sites. The fishery management activities in all three sites are similar and catches and biodiversity appear to have improved, demonstrating that women can play an effective role in community organizations for fishery management. Those who are represented in the CBOs reported significant increases in their participation and influence. Men and women in all three sites recognized that decision-making and management of their fisheries had improved, but community support and compliance were higher where both men and women had an active role in this process. Women had a more diverse set of criteria for effective CBOs than men. The men-only CBO saw itself as more of a membership based organization than as representing all of the community.
Subdividing the Commons: The Politics of Property Rights Transformation in Kenya’s Maasailand
Creators: name: Mwangi, Esther
name: Mwangi, Esther
Publisher: name: Unknown
Year: 2006
Subjects: subject: Commons
subject: Policy process
subject: Property rights
subject: Kenya
subject: Land tenure
subject: Pastoralism
subject: Group ranches

description: This paper discusses the internal processes and decisions that characterized the transition from collectively held group ranches to individualized property systems among the Maasai pastoralists of Kajiado district in Kenya. It addresses the question of why group ranch members would demand individualized property systems, but then turn against the outcome. In addressing this puzzle the paper discusses the process of land allocation and distribution during group ranch subdivision. It examines who the main actors were during subdivision, their degree of latitude in crafting and changing rules, and the interactions between Maasai and state institutions. Findings suggest that, because the process by which property rights change is so intertwined with politics, we may need to move beyond economic models of relative price changes and state enforcement in order to better understand such transitions. Models that accommodate competition by actors and the possibility that state actors may not provide the arbitration or enforcement that is often taken for granted are more useful for analyzing the complexities of shifting property rights. When the possibility for conflict and competition is factored into the property rights equation, the relative gains from privatizing/individualizing may not be as large or as obvious as anticipated.
Gravoturbulent formation of planetesimals
Creators: name: Johansen, Anders
name: Klahr, Hubert
name: Henning, Thomas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the effect of magnetorotational turbulence on the dynamics and concentrations of boulders in local box simulations of a sub-Keplerian protoplanetary disc. The solids are treated as particles each with an independent space coordinate and velocity. We find that the turbulence has two effects on the solids. 1) Meter and decameter bodies are strongly concentrated, locally up to a factor 100 times the average dust density, whereas decimeter bodies only experience a moderate density increase. The concentrations are located in large scale radial gas density enhancements that arise from a combination of turbulence and shear. 2) For meter-sized boulders, the concentrations cause the average radial drift speed to be reduced by 40%. We find that the densest clumps of solids are gravitationally unstable under physically reasonable values for the gas column density and for the dust-to-gas ratio due to sedimentation. We speculate that planetesimals can form in a dust layer that is not in itself dense enough to undergo gravitational fragmentation, and that fragmentation happens in turbulent density fluctuations in this sublayer.
description: Accepted for publication in ApJ
Cosmological Parameter Estimation from the Two-Dimensional Genus Topology -- Measuring the Shape of the Matter Power Spectrum
Creators: name: Appleby, Stephen A.
name: Park, Changbom
name: Hong, Sungwook E.
name: Hwang, Ho Seong
name: Kim, Juhan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present measurements of the two-dimensional genus of the SDSS-III BOSS catalogs to constrain cosmological parameters governing the shape of the matter power spectrum. The BOSS data are divided into twelve concentric shells over the redshift range $0.2 < z < 0.6$, and we extract the genus from the projected two-dimensional galaxy density fields. We compare the genus amplitudes to their Gaussian expectation values, exploiting the fact that this quantity is relatively insensitive to non-linear gravitational collapse. The genus amplitude provides a measure of the shape of the linear matter power spectrum, and is principally sensitive to $Ω_{\rm c}h^{2}$ and scalar spectral index $n_{\rm s}$. A strong negative degeneracy between $Ω_{\rm c}h^{2}$ and $n_{\rm s}$ is observed, as both can increase small scale power by shifting the peak and tilting the power spectrum respectively. We place a constraint on the particular combination $n_{\rm s}^{3/2} Ω_{\rm c}h^{2}$ -- we find $n_{\rm s}^{3/2} Ω_{\rm c}h^{2} = 0.1121 \pm 0.0043$ after combining the LOWZ and CMASS data sets, assuming a flat $Λ$CDM cosmology. This result is practically insensitive to reasonable variations of the power spectrum amplitude and linear galaxy bias. Our results are consistent with the Planck best fit $n_{\rm s}^{3/2}Ω_{\rm c}h^{2} = 0.1139 \pm 0.0009$.
description: ApJ submitted, comments welcome
Prospective analysis of the agriculture in Castilla y Leon (Spain)
Creators: name: Gomez-Limon, Jose Antonio
name: Gomez-Ramos, Almudena
name: Sanchez, G.
name: Gomez-Limon, Jose Antonio
name: Gomez-Ramos, Almudena
name: Sanchez, G.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Prospective analysis
subject: Scenario building
subject: CAP

description: The objective of this paper is to carry out a foresight analysis of the agricultural sector in Castilla y León (Spain) for 2020. The methodology used to build the various scenarios is prospective analysis. We first performed a structural analysis in order to identify the key driving forces that characterize the evolution of the sector in this region (agricultural production, demand for agricultural products and institutional framework). We then carried out a morphological analysis that generated a range of “partial scenarios” from which we finally built four “global scenarios”. These last scenarios characterize the possible trends in the variables of change previously identified. Lastly, the common key parameters of each global scenario were quantified by means of the Delphi method. The characterization of scenarios has a double practical interest. First of all, they can explain the cause-effect relationships of the processes of change that affect agriculture in this region of Spain. Secondly, they are a powerful tool to stimulate an in-depth reflection of how the design and implementation of current agricultural policies will affect the already fragile agricultural sector of Castilla y León. This study thus aims to support decision-making processes at regional level.
The cell adaptation time sets a minimum length scale for patterned substrates
Creators: name: Pinto, Diogo E. P.
name: Erdemci-Tandogan, Gonca
name: Manning, M. Lisa
name: Araujo, Nuno A. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The structure and dynamics of tissue cultures depend strongly on the physical and chemical properties of the underlying substrate. Inspired by previous advances in the context of inorganic materials, the use of patterned culture surfaces has been proposed as an effective way to induce space-dependent properties in cell tissues. However, cells move and diffuse and the transduction of external stimuli to biological signals is not instantaneous. Here, we show that the fidelity of patterns depends on the relation between the diffusion ($τ_D$) and adaptation ($τ$) times. Numerical results for the self-propelled Voronoi model reveal that the fidelity decreases with $τ/τ_D$, a result that is reproduced by a continuum reaction-diffusion model. We derive a minimum length scale for the patterns that depends on $τ/τ_D$ and can be much larger than the cell size.
Agricultural and non-agricultural outputs and energy consumption in Tunisia: empirical evidences from cointegration and causality
Creators: name: Chebbi, Houssem Eddine
name: Boujelbene, Y.
name: Chebbi, Houssem Eddine
name: Boujelbene, Y.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Resource /Energy Economics and Policy
subject: energy consumption
subject: output growth
subject: causality
subject: cointegration
subject: Tunisia

description: This short paper investigates the cointegration and causality link between energy consumption and agricultural, non-agricultural outputs (manufacturing sector and services sector) and overall gross domestic product in Tunisia for 1971-2003 period. Empirical results suggest that there is only unidirectional causality running from agricultural and non-agricultural sectors to energy consumption as well as from overall GDP growth to energy consumption. This unidirectional causality signifies a less energy dependent economy and suggests that it is sectoral growth that drives the energy consumption in Tunisia and not vice versa. Empirical results suggest also that Tunisian agricultural sector growth does not depend on energy, and high consumption of energy do not implies more productivity in the short run for this sector.
The Transformation of Cluster Galaxies at Intermeidate Redshift
Creators: name: Homeier, N. L.
name: Demarco, R.
name: Rosati, P.
name: Postman, M.
name: Blakeslee, J. P.
name: Bouwens, R. J.
name: Bradley, L. D.
name: Ford, H. C.
name: Goto, T.
name: Gronwall, C.
name: Holden, B.
name: Illingworth, G. D.
name: Jee, M. J.
name: Martel, A. R.
name: Mei, S.
name: Menanteau, F.
name: Zirm, A.
name: Clampin, M.
name: Hartig, G. F.
name: Team, the ACS
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We combine imaging data from the Advanced Camera for Surveys (ACS) with VLT/FORS optical spectroscopy to study the properties of star-forming galaxies in the z=0.837 cluster CL0152-1357. We have morphological information for 24 star-forming cluster galaxies, which range in morphology from late-type and irregular to compact early-type galaxies. We find that while most star-forming galaxies have $r_{625}-i_{775}$ colors bluer than 1.0, eight are in the red cluster sequence. Among the star-forming cluster population we find five compact early-type galaxies which have properties consistent with their identification as progenitors of dwarf elliptical galaxies. The spatial distribution of the star-forming cluster members is nonuniform. We find none within $R\sim 500$ Mpc of the cluster center, which is highly suggestive of an intracluster medium interaction. We derive star formation rates from [OII] $λλ3727$ line fluxes, and use these to compare the global star formation rate of CL0152-1357 to other clusters at low and intermediate redshifts. We find a tentative correlation between integrated star formation rates and $T_{X}$, in the sense that hotter clusters have lower integrated star formation rates. Additional data from clusters with low X-ray temperatures is needed to confirm this trend. We do not find a significant correlation with redshift, suggesting that evolution is either weak or absent between z=0.2-0.8.
description: ApJ accepted
Improving the light collection efficiency of silicon photomultipliers through the use of metalenses
Creators: name: Villalpando, A. A. Loya
name: Martin-Albo, J.
name: Chen, W. T.
name: Guenette, R.
name: Lego, C.
name: Park, J. S.
name: Capasso, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Metalenses are optical devices that implement nanostructures as phase shifters to focus incident light. Their compactness and simple fabrication make them a potential cost-effective solution for increasing light collection efficiency in particle detectors with limited photosensitive area coverage. Here we report on the characterization and performance of metalenses in increasing the light collection efficiency of silicon photomultipliers (SiPM) of various sizes using an LED of 630~nm, and find a six to seven-fold increase in signal for a $1.3\times1.3~\mathrm{mm}^2$ SiPM when coupled with a 10-mm-diameter metalens manufactured using deep ultraviolet stepper lithography. Such improvements could be valuable for future generations of particle detectors, particularly those employed in rare-event searches such as dark matter and neutrinoless double beta decay.
description: 13 pages, 7 figures
On the Generators of Quantum Stochastic Master Equation
Creators: name: Belavkin, V. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A characterisation of the stochastic bounded generators of quantum irreversible Master equations is given. This suggests the general form of quantum stochastic evolution with respect to the Poisson (jumps), Wiener (diffusion) or general Quantum Noise. The corresponding irreversible Heisenberg evolution in terms of stochastic completely positive (CP) maps is found and the general form of the stochastic completely dissipative (CD) operator equation is discovered.
description: 14 pages. See also relevant papers at http://www.maths.nott.ac.uk/personal/vpb/research/evo_equ.html and http://www.maths.nott.ac.uk/personal/vpb/research/fil_con.html
The effect of competition between two spatially separated markets - An investigation of two interlinked Bak-Sneppen models
Creators: name: Damgaard, Martin
name: Damgaard, Martin
Publisher: name: Unknown
Year: 2008
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Bak-Sneppen model
subject: interdependency
subject: competition

description: This paper investigates the effect of competition in a market consisting of interlinked economic agents. In particular, the effect of increased competition from the surrounding markets is demonstrated. The presented work is an extension of the Bak-Sneppen model (Bak and Sneppen 1993). Here are two Bak-Sneppen models interlinked such that if the lowest fitness value of one market exceeds the fitness values of the other market minus transportation cost, all cells lower than this band will receive a new random value. The model shows that interdependency between markets has a strong effect on the competitiveness of the least competitive market. The external competition is able to make the least competitive market perform better as well as worse than on its own.
Cryphalus basihirtus
Creators: name: Rabaglia, Robert J.
name: Beaver, Roger A.
name: Johnson, Andrew J.
name: Schmaedick, Mark A.
name: Smith, Sarah M.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Cryphalus
Cryphalus basihirtus

description: Cryphalus basihirtus (Beeson)
 Hypocryphalus basihirtus Beeson, 1929: 227.
 Cryphalus basihirtus (Beeson): Johnson et al. 2020: 21.
 Beeson described this species from Upolu in Samoa, and Schedl (1951a) reported this species from Tutuila (Afono trail and Moloata [sic]).
Current survey records: Not found in current survey.
description: Published as part of Rabaglia, Robert J., Beaver, Roger A., Johnson, Andrew J., Schmaedick, Mark A. & Smith, Sarah M., 2020, The bark and ambrosia beetles (Coleoptera: Curculionidae: Scolytinae and Platypodinae) of American Samoa, pp. 171-195 in Zootaxa 4808 (1) on pages 173-174, DOI: 10.11646/zootaxa.4808.1.11, http://zenodo.org/record/3927891
Intensity-only Mode Decomposition on Multimode Fibers using a Densely Connected Convolutional Network
Creators: name: Rothe, Stefan
name: Zhang, Qian
name: Koukourakis, Nektarios
name: Czarske, Jürgen W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The use of multimode fibers offers advantages in the field of communication technology in terms of transferable information density and information security. For applications using physical layer security or mode division multiplexing, the complex transmission matrix must be known. To measure the transmission matrix, the individual modes of the multimode fiber are excited sequentially at the input and a mode decomposition is performed at the output. Mode decomposition is usually performed using digital holography, which requires the provision of a reference wave and leads to high efforts. To overcome these drawbacks, a neural network is proposed, which performs mode decomposition with intensity-only camera recordings of the multimode fiber facet. Due to the high computational complexity of the problem, this approach was usually limited to a number of 6 modes. In this work, it could be shown for the first time that by using a DenseNet with 121 layers it is possible to break through the hurdle of 6 modes. The advancement is demonstrated by a mode decomposition with 10 modes experimentally. The training process is based on synthetic data. The proposed method is quantitatively compared to the conventional approach with digital holography. In addition, it is shown that the network can perform mode decomposition on a 55-mode fiber, which also supports modes unknown to the neural network. The smart detection using a DenseNet opens new ways for the application of multimode fibers in optical communication networks for physical layer security.
description: 17 pages
X-ray spectroscopy of rare-earth nickelate LuNiO$_3$: LDA+DMFT study
Creators: name: Winder, Mathias
name: Hariki, Atsushi
name: Kuneš, Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a computational study of resonant inelastic x-ray scattering (RIXS) and x-ray absorption in a representative rare-earth nickelate LuNiO$_3$. We study the changes in the spectra across the metal-insulator/site-disproportionation transition. In particular, we address the question of site-selectivity of the two methods in the disproportionated insulating phase and the signature of metal-insulator transition in the fluorescence-like feature of the RIXS spectra. To this end we use the local density approximation + dynamical mean-field theory (LDA+DMFT) approach combined with configuration integration method to compute the core-level spectra.
Lattice gas models derived from effective field theory
Creators: name: Hamilton, Matthew
name: Lynch, Iyam
name: Lee, Dean
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We start from a low-energy effective field theory for interacting fermions on the lattice and expand in the hopping parameter to derive the nearest-neighbor interactions for a lattice gas model. In this model the renormalization of couplings for different lattice spacings is inherited from the effective field theory, systematic errors can be estimated a priori, and the breakdown of the lattice gas model description at low temperatures can be understood quantitatively. We apply the lattice gas method to neutron matter and compare with results from a recent quantum simulation.
description: 13 pages, 4 figures
A structurally frame-indifferent model for anisotropic visco-hyperelastic materials
Creators: name: Ciambella, Jacopo
name: Nardinocchi, Paola
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: One of the main theoretical issues in developing a theory of anisotropic viscoelastic media at finite strains lies in the proper definition of the material symmetry group and its evolution with time. In this paper the matter is discussed thoroughly and addressed by introducing a novel anisotropic remodelling equation compatible with the principle of structural frame indifference, a requirement that every inelastic theory based on the multiplicative decomposition of the deformation gradient must obey to. The evolution laws of the dissipative process are %obtained by introducing a novel (remodelling) balance equation which is completely determined by two scalar functions, the elastic strain energy and the dissipation densities. The proper choice of the dissipation function allows us to reduce the proposed model to the Ericksen anisotropic fluid, when deformation is sufficiently slow, or to the anisotropic hyperelastic solid for fast deformations. Finally, a few prototype examples are discussed to highlight the role of the relaxation times in the constitutive response.
description: 43 pages,, 9 figures
The behaviour of food relative prices: An analysis across the European Countries
Creators: name: Gutierrez, Luciano
name: Brasili, Cristina
name: Fanfani, Roberto
name: Gutierrez, Luciano
name: Brasili, Cristina
name: Fanfani, Roberto
Publisher: name: Unknown
Year: 2008
Subjects: subject: Demand and Price Analysis
subject: Food relative prices
subject: Non stationarity
subject: Common factors

description: In this paper we analyze the behavior of relative food prices for a set of 24 European countries observed during the period 1996.1 - 2007.7. Using new methods for analyzing nonstationary panels, we are able to show that relative food prices have a common component which accounts for a large share of their variance. We show that this component has had a greater effects on the group of countries that adopt the Euro. We also find that countries in the Euro area are more market integrated, i.e. food prices tend to converge, than countries that have not adopted the Euro. Finally, we report that the half-live of a shock to relative food prices varies depending on the product, and that the adjustment is generally faster, on average about 10 months, than those usually reported in literature.
Classical phase fluctuations in d-wave superconductors
Creators: name: Samokhin, K. V.
name: Mitrovic, B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the effects of low-energy nodal quasiparticles on the classical phase fluctuations in a two-dimensional d-wave superconductor. The singularities of the phase-only action at T\to 0 are removed in the presence of disorder, which justifies using an extended classical XY-model to describe phase fluctuations at low temperatures.
description: 14 pages, brief review for Mod. Phys. Lett. B
Hypostasis und verwandte Begriffe in den Bekenntnisschriften des Gennadios II. von Konstantinopel und des Metrophanes Kritopulos
Creators: name: Hammerschmidt, Ernst
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 40 (1956): Oriens christianus, Band 40
Lie sphere geometry in nuclear scattering processes
Creators: name: Ulrych, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Physics (physics.gen-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 51B25, 81V35, 15A66, 30G35, 81T30

description: The Lie sphere geometry is a natural extension of the Möbius geometry, where the latter is very important in string theory and the AdS/CFT correspondence. The extension to Lie sphere geometry is applied in the following to a sequence of Möbius geometries, which has been investigated recently in a bicomplex matrix representation. When higher dimensional space-time geometries are invoked by inverse projections starting from an originating point geometry, the Lie sphere scheme provides a more natural structure of the involved Clifford algebras compared to the previous representation. The spin structures resulting from the generated Clifford algebras can potentially be used for the geometrization of internal particle symmetries. A simple model, which includes the electromagnetic spin, the weak isospin, and the hadronic isospin, is suggested for further verification.
Characterization of the unc-23 gene, an HSP-1 chaperone regulator, in Caenorhabditis elegans
Creators: name: Rahmani Gorji, Poupak
Publisher: name: University of British Columbia
Year: 2009

description: Mutations in the unc-23 gene in the free living nematode, Caenorhabditis elegans, result in detachment and dystrophy of the anterior body wall musculature and a bent-head phenotype when grown on solid substrate (Waterston et al, 1980). This phenotype is not observed when animals are grown in liquid culture (Bullerjahn and Riddle, pers. comm.) Neither muscle cell growth and positioning nor myofilament assembly is affected in liquid grown unc-23 animals. Muscle cell attachment, however, is affected since a small amount of stress applied by rolling the animals under the coverslip results in detachment of the muscle cells from the hypodermis. The results of immunological staining with antibodies to basement membrane and hypodermal components suggest that the primary defect in unc-23 animals is located within the hypodermis. UNC-23 encodes a cytoplasmic protein with a domain similar to the mammalian chaperone regulator BAG-2 (BCL2-associated athanogene 2). Human BAG-2 and C. elegans UNC-23 share 40% amino acid identity and 62% similarity over the BAG domain and its upstream region. In mammals, the BAG family of chaperone regulators contain a conserved 45 amino acid region near their C termini (the B A G domain) that binds Hsp70/Hsc70 and control their chaperone activity (Takayama et al, 1999). UNC-23 is first expressed in only a few cells in 1.5 fold stage embryos. As animals develop and grow, UNC-23 expression expands and eventually includes several tissues. In adult animals, UNC-23 is expressed in the pharynx, the body wall muscle cells, the hypodermis, H cells, and the vulva. In body wall muscle cells, UNC-23 is localized in a pattern similar to that of the transmembrane protein, (3 integrin, suggesting that it is associated with the proteins that make up the dense bodies and M lines. In the hypodermis, UNC-23 is present throughout the tissue with the exception of the nuclei and is distributed in a pattern reminiscent of the intermediate filaments. A yeast two-hybrid screen identified the ATPase domain of the non-inducible heat shock protein 70, HSP-1, as an interacting partner with the COOH terminus of UNC- 23. This in vitro result was confirmed in vivo with the identification of two dominant suppressors of unc-23(e25) as alleles of the hsp-1 gene in C. elegans. The molecular lesions that result in HSP-1 suppressor activity are missense mutations located within the ATPase domain of the HSP-1 molecule. In vitro studies of BAG-2 in mammals suggest that this protein is a negative regulator of Hsc70. It is predicted that UNC-23 in C. elegans is also a negative regulator of the HSP-1 chaperone. The results from suppression analysis and the phenotypic characterization of unc- 23 mutants suggest that the UNC-23-HSP-1 interaction is required for the maintenance of hypodermal integrity and muscle cell attachment during mechanical stress in C. elegans.
Bibelwissen und Bibelverständnis bei Jugendlichen. Grundlegende Befunde - theoriegeleitete Analysen - bibeldidaktische Konsequenzen, hg. v. Carsten Gennerich / Mirjam Zimmermann
Creators: name: Fricke, Michael
Publisher: name: Theologische Revue
Year: 2021

description: Theologische Revue, Bd. 117 (2021): März
Transport through vertical graphene contacts under intense laser fields
Creators: name: Stadler, Pascal
name: Löfwander, Tomas
name: Fogelström, Mikael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically study the electronic and transport properties of two graphene layers vertically coupled by an insulating layer under the influence of a time-periodic external light field. The non-adiabatic driving induces excitations of electrons and a redistribution of the occupied states which is manifested in the opening of gaps in the quasienergy spectrum of graphene. When a voltage is applied between the top and bottom graphene layers, the photo-induced nonequilibrium occupation modifies the transport properties of the contact. We investigate the electronic and transport properties of the contact by using the nonequilibrium Green's function formalism. To illustrate the behavior of the differential conductance of the vertical contact under the light illumination, we consider two cases. First, we assume that both the bottom and top layers consist of graphene and second we consider a finite mass term in the bottom layer. We obtain that the differential conductance is strongly suppressed due to the opening of gaps in the quasienergy spectrum in graphene. Additionally, the conductance shows features corresponding to the tunneling of photoexcited electrons at energies of the van Hove singularity for both the top and bottom layers. In the case of a finite mass term in the bottom layer, the differential conductance can be directly related to the tunneling of photoexcited electrons.
Trade Liberalisation with Costly Adjustment
Creators: name: Forteza, Alvaro
name: Patron, Rossana
name: Forteza, Alvaro
name: Patron, Rossana
Publisher: name: Unknown
Year: 2003
Subjects: subject: International Relations/Trade
subject: adjustment costs
subject: trade liberalisation

description: The paper analyses the efficiency and the distributional effects of eliminating a tariff in a protected sector, in a Heckscher-Ohlin model of trade with costs of adjustment. The tariff can be eliminated at the onset or after a while. In case of postponing it the government may pre-announce the policy change or may not do it and surprise the private sector. It is shown that while large adjustment costs reduce the efficiency gains from trade liberalisation, small to moderate adjustment costs may raise the efficiency gains from a pre-announced liberalisation. The adjustment costs reduce the effects on factor returns from a sudden unanticipated liberalisation. The distributional effects of trade liberalisations are more complex when the policy is pre-announced. For small and moderate levels, the adjustment costs may increase the effects of the policy on factor returns. Also, the “value of the announcement” rises with the adjustment costs.
Celestial Mechanics, Conformal Structures, and Gravitational Waves
Creators: name: Duval, C.
name: Gibbons, G.
name: Horvathy, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The equations of motion for $N$ non-relativistic particles attracting according to Newton's law are shown to correspond to the equations for null geodesics in a $(3N+2)$-dimensional Lorentzian, Ricci-flat, spacetime with a covariantly constant null vector. Such a spacetime admits a Bargmann structure and corresponds physically to a generalized pp-wave. Bargmann electromagnetism in five dimensions comprises the two Galilean electro-magnetic theories (Le Bellac and Lévy-Leblond). At the quantum level, the $N$-body Schrödinger equation retains the form of a massless wave equation. We exploit the conformal symmetries of such spacetimes to discuss some properties of the Newtonian $N$-body problem: homographic solutions, the virial theorem, Kepler's third law, the Lagrange-Laplace-Runge-Lenz vector arising from three conformal Killing 2-tensors, and motions under inverse square law forces with a gravitational constant $G(t)$ varying inversely as time (Dirac). The latter problem is reduced to one with time independent forces for a rescaled position vector and a new time variable; this transformation (Vinti and Lynden-Bell) arises from a conformal transformation preserving the Ricci-flatness (Brinkmann). A Ricci-flat metric representing $N$ non-relativistic gravitational dyons is also pointed out. Our results for general time-dependent $G(t)$ are applicable to the motion of point particles in an expanding universe. Finally we extend these results to the quantum regime.
description: 26 pages, LaTeX
Temperature Dependence of the Superfluid Density in a Noncentrosymmetric Superconductor
Creators: name: Hayashi, N.
name: Wakabayashi, K.
name: Frigeri, P. A.
name: Sigrist, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: For a noncentrosymmetric superconductor such as CePt3Si, we consider a Cooper pairing model with a two-component order parameter composed of spin-singlet and spin-triplet pairing components. We calculate the superfluid density tensor in the clean limit on the basis of the quasiclassical theory of superconductivity. We demonstrate that such a pairing model accounts for an experimentally observed feature of the temperature dependence of the London penetration depth in CePt3Si, i.e., line-node-gap behavior at low temperatures.
description: 10 pages
Formation of mesic nuclei by (γ,p) reactions
Creators: name: Nagahiro, H.
name: Jido, D.
name: Hirenzaki, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present a theoretical study on formation rates of ηand ωmeson-nucleus systems induced by (γ,p) reactions on nuclear targets at ideal recoilless condition. We find that the smaller distortion effect in the (γ,p) reaction enables us to investigate properties of the mesons created deeply inside nucleus more clearly. We also consider excitation of scalar-isoscalar (σ) mode in nucleus in order to investigate spectral enhancement around two-pion threshold caused by partial restoration of chiral symmetry. We conclude that valuable information of meson-nucleus interactions can be extracted from global structure of the missing mass spectra in the (γ,p) reaction.
description: 38 pages, 3 tables, 12 figures, submitted to Nucl.Phys.A, minor corrections, added several references
Cryphalus imitans
Creators: name: Rabaglia, Robert J.
name: Beaver, Roger A.
name: Johnson, Andrew J.
name: Schmaedick, Mark A.
name: Smith, Sarah M.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Cryphalus
Cryphalus imitans

description: Cryphalus imitans (Schedl)
 Hypocryphalus imitans Schedl, 1951a: 148.
 Cryphalus imitans (Schedl): Johnson et al. 2020: 22.
Schedl (1951a) described this species based on specimens from Tutuila (Utulei), as well as Samoa.
Current survey records: Not found in current survey.
description: Published as part of Rabaglia, Robert J., Beaver, Roger A., Johnson, Andrew J., Schmaedick, Mark A. & Smith, Sarah M., 2020, The bark and ambrosia beetles (Coleoptera: Curculionidae: Scolytinae and Platypodinae) of American Samoa, pp. 171-195 in Zootaxa 4808 (1) on page 174, DOI: 10.11646/zootaxa.4808.1.11, http://zenodo.org/record/3927891
The Determinants of Dairy Farming Competitiveness in Ukraine
Creators: name: Nivievskyi, Oleg
name: Von Cramon-Taubadel, Stephan
name: Nivievskyi, Oleg
name: Von Cramon-Taubadel, Stephan
Publisher: name: Unknown
Year: 2008
Subjects: subject: Livestock Production/Industries
subject: Dairy
subject: Ukraine
subject: Competitiveness

description: WTO accession and the expected free trade agreement with the EU pose significant challenges for Ukrainian agriculture, implying structural changes for the sector as well as adaptations at the farm level to improve efficiency and competitiveness. However, a recent study by von Cramon-Taubadel and Nivievskyi [2] demonstrates a clear lack of competitiveness. This directs attention to the forces that drive competitiveness in Ukrainian agriculture. Dairy farming deserves particular attention in this regard, since it is one of the main income generating sources for the rural population, and of raw material supply for the fast growing dairy processing. In this paper at first we analyze the profile of competitiveness of dairy farming in Ukraine, demonstrating that only about 20% of dairy farms produce at competitive level. Then using a fixed-effect panel regression we analyze the determinants of competitiveness in Ukrainian dairy farming. The size of the farm, productivity and labor intensity have a strong positive effect on competitiveness, while arable land per head has negative effect. Finally, total subsidies received by farms are found to have a negative impact on competitiveness, and this impact does not differ significantly between farms with different herd size.
Dairy supply chain restructuring and its impact on farmers' revenues in Poland
Creators: name: Falkowski, Jan
name: Malak-Rawlikowska, Agata
name: Milkczarek-Andrzejewska, D.
name: Falkowski, Jan
name: Malak-Rawlikowska, Agata
name: Milkczarek-Andrzejewska, D.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Livestock Production/Industries
subject: Supply chain
subject: restructuring
subject: dairy sector
subject: Poland

description: Supply chain restructuring and its impact on farmers’ situation have become the subject of vast interest among agricultural economists. However, there have been relatively few studies trying to quantitatively asses this issue. This paper analyses the impact of supply chain modernisation on dairy farmers in Poland. It is shown that joining the modern marketing channel positively affects farmers’ revenues. The decision to enter the modern channel is crucially dependent on access to funds and facilitated by having larger cow herds.
Fluctuation-theorem and extended thermodynamics of turbulence
Creators: name: Porporato, Amilcare
name: Hooshyar, Milad
name: Bragg, Andrew D
name: Katul, Gabriel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Turbulent flows are out-of-equilibrium because the energy supply at large scales and its dissipation by viscosity at small scales create a net transfer of energy among all scales. Here, the energy cascade is approximated by a combined contribution of a forward drift and diffusion that recover accepted phenomenological theories of turbulence. The fluctuation theorem (FT) is then shown to describe the scale-wise statistics of forward and backward energy transfer and their connection to irreversibility and entropy production. The ensuing turbulence entropy may be used to formulate an extended turbulence thermodynamics.
The General Quantum Interference Principle and the Duality Computer
Creators: name: Long, Gui Lu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this article, we propose a general principle of quantum interference for quantum system, and based on this we propose a new type of computing machine, the duality computer, that may outperform in principle both classical computer and the quantum computer. According to the general principle of quantum interference, the very essence of quantum interference is the interference of the sub-waves of the quantum system itself. A quantum system considered here can be any quantum system: a single microscopic particle, a composite quantum system such as an atom or a molecule, or a loose collection of a few quantum objects such as two independent photons. In the duality computer, the wave of the duality computer is split into several sub-waves and they pass through different routes, where different computing gate operations are performed. These sub-waves are then re-combined to interfere to give the computational results. The quantum computer, however, has only used the particle nature of quantum object. In a duality computer, it may be possible to find a marked item from an unsorted database using only a single query, and all NP-complete problems may have polynomial algorithms. Two proof-of-the-principle designs of the duality computer are presented: the giant molecule scheme and the nonlinear quantum optics scheme. We also proposed thought experiment to check the related fundamental issues, the measurement efficiency of a partial wave function
description: 26 pages including 14 figures
Euromediterranean agreements: which advantages for Mediterranean countries in fruit and vegetables sector?
Creators: name: Emlinger, Charlotte
name: Chevassus-Lozza, Emmanuelle
name: Jacquet, Florence
name: Emlinger, Charlotte
name: Chevassus-Lozza, Emmanuelle
name: Jacquet, Florence
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: Euromediterranean agreements
subject: preferential margin
subject: fruit and vegetables

description: This article measures the advantage granted by the European Union to different Mediterranean countries in the fruit and vegetables sector in the framework of the Euro-Mediterranean Association Agreements. The advantage of each country are evaluated by calculating the value of the preferential margins, which compares the amount of the customs duties paid by an exporting country with the amount of the duties this country would have paid if it had not enjoyed tariff preferences. The situation of the Mediterranean countries appears to be highly unequal in terms of the advantages granted by the EU in the fruit and vegetables sector. The progress of bilateral negotiations and the export structure in each country explain the significant variations in preferential margins from one Mediterranean country to the next. These results allow us to discuss the potential impacts of a liberalisation of fruit and vegetable trade within the Euro-Mediterranean zone.