cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Olive trees intercropped with chickpeas
Creators: name: Pantera, Anastasia
Publisher: name: Zenodo
Year: 2017
Subjects: Intercropped orchards
Olive orchards
Chickpeas

description: Chickpeas (Cicer arietinum L.) are valued as a high quality food for humans. They are also an excellent source of protein for animal feed. They are easy to cultivate, requiring little management and, in general, have low treatment costs. They have high monetary value, so a farmer can gain considerable additional income fromcultivating chickpeas among trees.

One of the important characteristics of chickpeas is their low water demand. This makes them ideal for intercropping with trees of similar water economy in Mediterranean and other dry ecosystems.

Another important feature of chickpeas is the nitrogen they provide to the soil by the symbiotic relationship of their roots with nitrogen fixing bacteria. This benefits the farmer by reducing the need for expenditure on nitrogen fertilizers, which also protects the soil and water from nitrogen contamination.
title: Reference organisms for assessing the impact of ionising radiationon the environment of the southern Baltic Sea
Creators: name: Zalewska, Tamara
name: Suplińska, Maria
Publisher: name: ASC 2011 - Theme session R
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Assessment of the impact of ionizing radiation on the marine environment requires well‐defined methodology including the analysis of exposure and effects. The exposure assessment is based on measurements of the intensity, frequency, and duration of exposure of organisms to radionuclides currently present in the environment or on estimation of hypothetical exposure related to possible accidental releases. One of the most important components of the assessment system is to identify reference organisms specific to the assessed area and fulfilling special assigned requirements with regard to radio‐ecological sensitivity, widespread distribution, and amenability to research and monitoring. The following species specific to the southern Baltic Sea environment and representing diversified ecological niches were proposed as reference organisms: Polysiphonia fucoides as a representative of the macroalgae, benthic fauna represented by Gammarus zaddachi (crustacean), Saduria entomon (crustacean), Hediste diversicolor (polychaete), Mytilus trossulus (mollusc), and fish represented by Clupea harengus (pelagic planctotrophic fish), Gadus morhua (pelagic carnivorous fish), and Platichthys flesus (benthic fish). Activity concentrations of caesium‐137 were determined in reference biota as well as in seawater and sediments as required for the total dose–rate evaluation and relevant concentration factors were calculated.
title: Converging biology, economics and social science in fisheries research lessons learned
Creators: name: Haapasaari, Päivi
name: Kulmala, Soile
name: Kuikka, Sakari
Publisher: name: ASC 2011 - Theme session R
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.It has been acknowledged that natural sciences cannot provide an adequate basis for the management of complex environmental problems. The scientific knowledge base has to be expanded towards a more holistic direction by incorporating social and economic issues. Besides this, multifaceted knowledge has to be summarized in a form that can support science‐based decision‐making. Interdisciplinary skills and methodologies are required that permit the integration of knowledge from conceptually different disciplines. We built an integrated decision support tool for the long‐term management of the Baltic salmon stocks, using the Bayesian networks. It allowed the analysis of the outcomes of different management measures from biological, social, and economic perspectives. The synthesis was the final output of a learning process over eight years. We reflect how and what kind of interdisciplinarity between natural scientists, economists and social scientists grew from the need to better understand complexity related to the salmon fisheries in the Baltic Sea, what we learned about the fishery, and what we learned about interdisciplinary collaboration.
Diagnosing Potts criticality and two-stage melting in one-dimensional hard-boson models
Creators: name: Giudici, Giuliano
name: Angelone, Adriano
name: Magnifico, Giuseppe
name: Zeng, Zhongda
name: Giudice, Giacomo
name: Mendes-Santos, Tiago
name: Dalmonte, Marcello
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate a model of hard-core bosons with infinitely repulsive nearest- and next-nearest-neighbor interactions in one dimension, introduced by Fendley, Sengupta and Sachdev in Phys. Rev. B 69, 075106 (2004). Using a combination of exact diagonalization, tensor network, and quantum Monte Carlo simulations, we show how an intermediate incommensurate phase separates a crystalline and a disordered phase. We base our analysis on a variety of diagnostics, including entanglement measures, fidelity susceptibility, correlation functions, and spectral properties. According to theoretical expectations, the disordered-to-incommensurate-phase transition point is compatible with Berezinskii-Kosterlitz-Thouless universal behaviour. The second transition is instead non-relativistic, with dynamical critical exponent $z > 1$. For the sake of comparison, we illustrate how some of the techniques applied here work at the Potts critical point present in the phase diagram of the model for finite next-nearest-neighbor repulsion. This latter application also allows to quantitatively estimate which system sizes are needed to match the conformal field theory spectra with experiments performing level spectroscopy.
description: 18 pages, 14 figures
Partition Function for (2+1)-Dimensional Einstein Gravity
Creators: name: Seriu, Masafumi
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Taking (2+1)-dimensional pure Einstein gravity for arbitrary genus $g$ as a model, we investigate the relation between the partition function formally defined on the entire phase space and the one written in terms of the reduced phase space. In particular the case of $g=1$ is analyzed in detail. By a suitable gauge-fixing, the partition function $Z$ basically reduces to the partition function defined for the reduced system, whose dynamical variables are $(τ^A, p_A)$. [The $τ^A$'s are the Teichmüller parameters, and the $p_A$'s are their conjugate momenta.] As for the case of $g=1$, we find out that $Z$ is also related with another reduced form, whose dynamical variables are $(τ^A, p_A)$ and $(V, σ)$. [Here $σ$ is a conjugate momentum to 2-volume $V$.] A nontrivial factor appears in the measure in terms of this type of reduced form. The factor turns out to be a Faddeev-Popov determinant coming from the time-reparameterization invariance inherent in this type of formulation. Thus the relation between two reduced forms becomes transparent even in the context of quantum theory. Furthermore for $g=1$, a factor coming from the zero-modes of a differential operator $P_1$ can appear in the path-integral measure in the reduced representation of $Z$. It depends on the path-integral domain for the shift vector in $Z$: If it is defined to include $\ker P_1$, the nontrivial factor does not appear. On the other hand, if the integral domain is defined to exclude $\ker P_1$, the factor appears in the measure. This factor can depend on the dynamical variables, typically as a function of $V$, and can influence the semiclassical dynamics of the (2+1)-dimensional spacetime. These results shall be significant from the viewpoint of quantum gravity.
description: 21 pages. To appear in Physical Review D. The discussion on the path-integral domain for the shift vector has been added
Real-time Power System State Estimation and Forecasting via Deep Neural Networks
Creators: name: Zhang, Liang
name: Wang, Gang
name: Giannakis, Georgios B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Contemporary power grids are being challenged by rapid voltage fluctuations that are caused by large-scale deployment of renewable generation, electric vehicles, and demand response programs. In this context, monitoring the grid's operating conditions in real time becomes increasingly critical. With the emergent large scale and nonconvexity however, the existing power system state estimation (PSSE) schemes become computationally expensive or yield suboptimal performance. To bypass these hurdles, this paper advocates deep neural networks (DNNs) for real-time power system monitoring. By unrolling an iterative physics-based prox-linear solver, a novel model-specific DNN is developed for real-time PSSE with affordable training and minimal tuning effort. To further enable system awareness even ahead of the time horizon, as well as to endow the DNN-based estimator with resilience, deep recurrent neural networks (RNNs) are also pursued for power system state forecasting. Deep RNNs leverage the long-term nonlinear dependencies present in the historical voltage time series to enable forecasting, and they are easy to implement. Numerical tests showcase improved performance of the proposed DNN-based estimation and forecasting approaches compared with existing alternatives. In real load data experiments on the IEEE 118-bus benchmark system, the novel model-specific DNN-based PSSE scheme outperforms nearly by an order-of-magnitude the competing alternatives, including the widely adopted Gauss-Newton PSSE solver.
The Measurement of Time Varying Technical Efficiency and Productivity Change in Polish Crop Farms
Creators: name: Marzec, Jerzy
name: Pisulewski, Andrzej
name: Marzec, Jerzy
name: Pisulewski, Andrzej
Publisher: name: Unknown
Year: 2019
Subjects: subject: Crop Production/Industries
subject: Production Economics
subject: Productivity Analysis
subject: Research Methods/ Statistical Methods
subject: stochastic frontier analysis
subject: panel data
subject: total factor productivity
subject: agricultural policy

description: The main aim of this study is to measure the technical efficiency and decompose total factor productivity (TFP) growth of Polish crop farms. The novelty of our contribution is threefold. First of all, our work contributes to research on agricultural performance of Central and Eastern European countries in the post-European Union accession period. Secondly, compared to previous studies, our study expands them by decomposition of total factor productivity growth for a specific sector based on a very extensive dataset, thus providing a more indepth analysis of factors driving productivity growth. Thirdly, we have thoroughly explored the same data set by several different models, showing consequences of choosing a particular model. The empirical analysis is based on a balanced panel of farms, from 2004 to 2011, taken from the Farm Accountancy Data Network. Findings show that the average technical efficiency was only 63%. The elasticity of production was highest with respect to materials and lowest with respect to area. The capital elasticity was statistically non-significant. We point out that this sector is characterized by increasing returns to scale, with estimates ranging from 1.05 to 1.3 for the majority of observations. Furthermore, the results show that TFP was slightly decreasing (on average by 0.067% per annum) over the entire period.
title: Dynamics of the key food-web flows in the Central Baltic Sea
Creators: name: Tomczak, M. T.
name: Niiranen, S.
name: Blenckner, T.
name: Hjerne, O.
Publisher: name: ASC 2011 - Theme session R
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The central Baltic Sea is a semi‐enclosed, highly productive area with a low biodiversity, where only a few key species drive the system’s dynamics. Recently, an ecosystem regime shift was described, with pronounced changes at all trophic levels driven by changes in fishery and climate and leading to foodweb reorganization and changes in the trophic flows. An Ecopath with Ecosim Baltic Sea foodweb model was developed to simulate and better understand the changes in trophic interactions. The model contains 22 functional groups that represent the main foodweb components, was calibrated to long‐term monitoring data (1974–2006) covering multiple trophic levels, and is forced by fisheries and environmental time‐series. Our results show a dynamic quantification of flows through the foodweb with an average transfer efficiency of 12% between the trophic levels II–IV. The model is able to explain 54% of the variation and to simulate the regime shift from a cod‐dominated system to a sprat‐dominated one. The results further show an increase in Acartia sp. biomass and the cascading effect from cod as well as sprat to Pseudocalanus sp. Macrozoobenthos was identified as an important element transferring energy directly from the trophic level I to top predators. Fisheries effects on the foodweb were detected as equally important to environmental change and a “fishing down the foodweb” was detected. Overall, this new Central Baltic Sea foodweb model is able to describe the past dynamics of multiple trophic levels. Uncertainties and limitations of the model approach and results in particular in relation to management options will be discussed.
Liquid-liquid equilibrium for monodisperse spherical particles
Creators: name: Jagla, E. A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A system of identical particles interacting through an isotropic potential that allows for two preferred interparticle distances is numerically studied. When the parameters of the interaction potential are adequately chosen, the system exhibits coexistence between two different liquid phases (in addition to the usual liquid-gas coexistence). It is shown that this coexistence can occur at equilibrium, namely, in the region where the liquid is thermodynamically stable.
description: 6 pages, 8 figures. Published version
title: Investigation on the supplementary combustion scheme for the divergent section of a solid rocket engine nozzle
Creators: name: DU, Zhao-Bo
name: HUANG, Wei
name: YAN, Li
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: AEROSPACE PROPULSION

description: The low combustion efficiency of the propellant results in the small specific impulse of the solid rocket engine. This paper attempts to install the inlet on the divergent section of the engine nozzle for additional combustion in order to improve the specific impulse of the solid rocket engine. In this paper, the external section, the throat and the divergent section of the inlet are designed by theoretical calculation, programming calculation and numerical simu-lation, and the inlet is installed on the nozzle to carry out the integrated numerical simulation. The obtained results show that there is a high temperature region where the temperature rises sharply upstream of the inlet. Severe com-bustion area which is strip-shaped distribution appears downstream of the air entrance, along the axis direction, parallel to the nozzle wall. Without considering the resistance, the supplementary combustion for the divergent sec-tion of the solid rocket engine nozzle can effectively improve the specific impulse by about 20%.
Wild asparagus in olive orchards
Creators: name: Rosati, Adolfo
Publisher: name: Zenodo
Year: 2017
Subjects: Wild asparagus
Olive orchards
Intercropped orchards
Agroforestry

description: High yielding olive trees need plenty of light and need to be spaced apart. Hence both traditional and super-high-density orchards intercept no more than 50-55% of the sunlight. The rest will fall on the groundand encourage weeds. Why, then, not plant another crop you can sell under the trees, to use that light?

The understorey crop must be adapted to shade. One possible crop is wild asparagus (Asparagus acutifolius) which is a culinary speciality in the Mediterranean. The spears can be harvested and sold in local markets. Growing under the trees, the asparagus does not affect the olive yield, while producing an additional crop.
Relaxation Effects in the Transition Temperature of Superconducting HgBa2CuO4+delta
Creators: name: Sadewasser, S.
name: Schilling, J. S.
name: Wagner, J. L.
name: Chmaissem, O.
name: Jorgensen, J. D.
name: Hinks, D. G.
name: Dabrowski, B.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In previous studies on a number of under- and overdoped high temperature superconductors, including YBa_{2}Cu_{3}O_{7-y} and Tl_{2}Ba_{2}CuO_{6+δ}, the transition temperature T_c has been found to change with time in a manner which depends on the sample's detailed temperature and pressure history. This relaxation behavior in T_c is believed to originate from rearrangements within the oxygen sublattice. In the present high-pressure studies on HgBa_{2}CuO_{4+δ} to 0.8 GPa we find clear evidence for weak relaxation effects in strongly under- and overdoped samples ($T_c\simeq 40 - 50 K$) with an activation energy $E_{A}(1 bar) \simeq 0.8 - 0.9 eV$. For overdoped HgBa_{2}CuO_{4+δ} E_{A} increases under pressure more rapidly than previously observed for YBa_{2}Cu_{3}O_{6.41}, yielding an activation volume of +11 \pm 5 cm^{3}; the dependence of T_c on pressure is markedly nonlinear, an anomalous result for high-T_c superconductors in the present pressure range, giving evidence for a change in the electronic and/or structural properties near 0.4 GPa.
title: Experiences on ecological status assessment of the Gulf of Bothnia different sites based on cardiac activity biomarkers of caged mussels (Mytilus edulis)
Creators: name: Kholodkevich, S. V.
name: Kuznetsova, T. V.
name: Lehtonen, K. K.
name: Kurakin, A. S.
Publisher: name: ASC 2011 - Theme session R
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Physiological biomarkers are widely used for quality assessment of surface waters. To assess the ecological status of different aquatic environments an approach based on transplantation of mussels from a reference site and their exposure in cages in areas affected by anthropogenic impact over a selected period has been applied. The procedure of heart rate (HR) measurements is well developed and described previously. In the present study by means of standardized test stimuli, used as functional loading, the cardiac responses of M. edulis were recorded after ca. three weeks of caging exposure at four sites in the Gulf of Bothnia. The experimental work was carried out on board the Finnish research vessel “ARANDA” in September 2010. A tendency for a rapid recovery (after salinity stimuli) of individual HRs to return to their ”background“ values can characterize good physiological status of test organisms as having better adaptive capacities to restore their normal physiological status. The latter can give the opportunity to extrapolate data for assessment of ecosystem health status for various sites. The following cardiac activity biomarkers were used for evaluation of the physiological status of M. edulis: (i) time of organism recovery, calculated as time needed for HRs to recover to individual background‐specific patterns (min) after salinity test (restoration of natural salinity); (ii) standard deviations (SD) of HRs over a group of test animals calculated 1 h after test stimulus removed. Based on the obtained data, the authors suggest the establishment of ranges for ecosystem state assessment for different sites in the Gulf of Bothnia.
title: Wake Measurements of a MAV with Morphing Geometry
Creators: name: MORA, R. Bardera
name: SEVILLANO, A. A. Rodriguez
name: GARCIA-MAGARINO, A.
name: BARDERAS, E. Barroso
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: WIND TUNNEL
UAV
PIV
DESIGN

description: This research is focused on experimental and analytical methods of determining the aerodynamic forces acting on a micro air vehicle (MAV) with adaptive wing geometry (morphing geometry). The goal of this design is to modify the camber and thickness of its wings by using smart materials in order to achieve the optimum autonomy or range during the flight phases. Therefore, the most relevant morphing configurations have been studied. They were designed and manufactured at Technical University of Madrid (UPM) by means of additive manufacturing and tested in a low speed wind tunnel at National Institute of Aerospace Technology (INTA). Particle Image Velocimetry was used to study the wake structure of the different morphing configurations. The experimental tests were performed with a freestream velocity of 10 m/s for several angles of attack, from 0 to 30. Two theoretical methods were applied: integral of transversal kinetic energy and Maskell\'s theory; for determining the induced drag coefficient and lift coefficient, respectively. A complete qualitative and quantitative study of the trailing vortex system behind the model is given in order to understand the aerodynamic behaviour of the morphing geometry.
title: 01_2764
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
HD219666b: A hot-Neptune from TESS Sector 1
Creators: name: Esposito, M.
name: Armstrong, D. J.
name: Gandolfi, D.
name: Adibekyan, V.
name: Fridlund, M.
name: Santos, N. C.
name: Livingston, J. H.
name: Mena, E. Delgado
name: Fossati, L.
name: Lillo-Box, J.
name: Barragán, O.
name: Barrado, D.
name: Cubillos, P. E.
name: Cooke, B.
name: Justesen, A. B.
name: Meru, F.
name: Díaz, R. F.
name: Dai, F.
name: Nielsen, L. D.
name: Persson, C. M.
name: Wheatley, P. J.
name: Hatzes, A. P.
name: Van Eylen, V.
name: Musso, M. M.
name: Alonso, R.
name: Beck, P.
name: Barros, S. C. C.
name: Bayliss, D.
name: Bonomo, A. S.
name: Bouchy, F.
name: Brown, D. J. A.
name: Bryant, E.
name: Cabrera, J.
name: Cochran, W. D.
name: Csizmadia, S.
name: Deeg, H.
name: Demangeon, O.
name: Deleuil, M.
name: Dumusque, X.
name: Eigmüller, P.
name: Endl, M.
name: Erikson, A.
name: Faedi, F.
name: Figueira, P.
name: Fukui, A.
name: Grziwa, S.
name: Guenther, E. W.
name: Hidalgo, D.
name: Hjorth, M.
name: Hirano, T.
name: Hojjatpanah, S.
name: Knudstrup, E.
name: Korth, J.
name: Lam, K. W. F.
name: de Leon, J.
name: Lund, M. N.
name: Luque, R.
name: Mathur, S.
name: Rodríguez, P. Montañés
name: Narita, N.
name: Nespral, D.
name: Niraula, P.
name: Nowak, G.
name: Osborn, H. P.
name: Pallé, E.
name: Pätzold, M.
name: Pollacco, D.
name: Prieto-Arranz, J.
name: Rauer, H.
name: Redfield, S.
name: Ribas, I.
name: Sousa, S. G.
name: Smith, A. M. S.
name: Tala-Pinto, M.
name: Udry, S.
name: Winn, J. N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on the confirmation and mass determination of a transiting planet orbiting the old and inactive G7 dwarf star HD219666 (Mstar = 0.92 +/- 0.03 MSun, Rstar = 1.03 +/- 0.03 RSun, tau_star = 10 +/- 2 Gyr). With a mass of Mb = 16.6 +/- 1.3 MEarth, a radius of Rb = 4.71 +/- 0.17 REarth, and an orbital period of P ~ 6 days, HD219666b is a new member of a rare class of exoplanets: the hot-Neptunes. The Transiting Exoplanet Survey Satellite (TESS) observed HD219666 (also known as TOI-118) in its Sector 1 and the light curve shows four transit-like events, equally spaced in time. We confirmed the planetary nature of the candidate by gathering precise radial-velocity measurements with HARPS@ESO3.6m. We used the co-added HARPS spectrum to derive the host star fundamental parameters (Teff = 5527 +/- 65 K, log g = 4.40 +/- 0.11 (cgs), [Fe/H]= 0.04 +/- 0.04 dex, log R'HK = -5.07 +/- 0.03), as well as the abundances of many volatile and refractory elements. The host star brightness (V = 9.9) makes it suitable for further characterisation by means of in-transit spectroscopy. The determination of the planet orbital obliquity, along with the atmospheric metal-to-hydrogen content and thermal structure could provide us with important clues on the formation mechanisms of this class of objects.
description: Accepted for publication in A&A
Atomistic Simulations of Basal Dislocations Interacting with Mg$_{17}$Al$_{12}$ Precipitates in Mg
Creators: name: Vaid, Aviral
name: Guénolé, Julien
name: Prakash, Aruna
name: Korte-Kerzel, Sandra
name: Bitzek, Erik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The mechanical properties of Mg-Al alloys are greatly influenced by the complex intermetallic phase Mg$_{17}$Al$_{12}$, which is the most dominant precipitate found in this alloy system. The interaction of basal edge and 30$^\text{o}$ dislocations with Mg$_{17}$Al$_{12}$ precipitates is studied by molecular dynamics and statics simulations, varying the inter-precipitate spacing ($L$), and size ($D$), shape and orientation of the precipitates. The critical resolved shear stress $τ_c$ to pass an array of precipitates follows the usual $\ln((1/D + 1/L)^{-1})$ proportionality. In all cases but the smallest precipitate, the dislocations pass the obstacles by depositing dislocation segments in the disordered interphase boundary rather than shearing the precipitate or leaving Orowan loops in the matrix around the precipitate. An absorbed dislocation increases the stress necessary for a second dislocation to pass the precipitate also by absorbing dislocation segments into the boundary. Replacing the precipitate with a void of identical size and shape decreases the critical passing stress and work hardening contribution while an artificially impenetrable Mg$_{17}$Al$_{12}$ precipitate increases both. These insights will help improve mesoscale models of hardening by incoherent particles.
description: 13 pages with 9 figures and 2 tables. Supplementary material
Flavour changing top decays in supersymmetric extensions of the standard model
Creators: name: de Divitiis, G. M.
name: Petronzio, R.
name: Silvestrini, L.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Flavour changing top decays $t \to c Z^0, t \to c g$ and $t \to c γ$ are predicted with invisible rates within the standard model and may represent a window on new physics. We consider these processes in supersymmetric extensions of the standard model and we show that observable rates can be obtained only if the SUSY breaking is non universal and flavour dependent.
description: 18 pages, latex files, text + 8 eps files of figures
Additional file of Alu distribution and mutation types of cancer genes
Creators: name: Zhang, Wensheng
name: Edwards, Andrea
name: Fan, Wei
name: Deininger, Prescott
name: Zhang, Kun
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file of Alu distribution and mutation types of cancer genes
Group Theoretical Quantization of Schwarzschild and Taub-NUT
Creators: name: Hollmann, Helia
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Stationary spherically symmetric gravity is equivalent to a nonlinear coset sigma model on SL(2,R)/SO(2) coupled to a gravitational remnant. Classically there are stationary solutions besides the static Schwarzschild metric labeled by the Schwarzschild mass $m$ and the Taub-NUT charge $l$. Imposing the SL(2,R) symmetry at the quantum level the Wheeler-DeWitt equation becomes related to the Casimir operator on the coset, which makes the system amenable to exact quantization.
description: 7 pages, LaTex, accepted for publication in Phys. Lett. B
Enhancing reindeer husbandry in boreal Sweden
Creators: name: Berg, Staffan
name: Lind, Torgny
name: Valinger, Erik
Publisher: name: Zenodo
Year: 2017
Subjects: Reindeer husbandry
GPS collars
Grazing
Forest grazing
Costs

description: The use of a GPS tracking system has led to a change in the labour process of reindeer husbandry, as the herd can be monitored and followed remotely on computers. It increases knowledge about migration routes and use of grazing areas as the movements are registered by the tracking devices. With the aid of the GPS tracking system, vehicle mileage could be reduced and predator attacks on the herd can be detected at an early stage. These attacks are a very serious concern for Sami herdsmen due to economic losses.
title: Cadastre of the Coastal Zone of the Russian Sector of the Baltic Sea - Integrated Information system
Creators: name: Zhamoida, V.
name: Ryabchuk, D.
name: Arseniev, B.
name: Gogoberidze, G.
name: Sivkov, V.
Publisher: name: ASC 2011 - Theme session R
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The coastal zone cadastre represents an integrated information system developed by the Russian Research Geological Institute (VSEGEI) in 2008. The principles of the cadastre were developed together with specialists of the ICZM Department of Russian State Hydrometeorological University. The cadastre is built according to regional principles, combining offshore and onland parts of the coastal zone in continuous interaction. The separate “cadastre objects” are distinguished according to complex indications, mainly based on superficial geological environments which are important for spatial planning and integrated coastal zone management. The cadastre consists of special information blocks covering: administrative structure, economics, and population; geology; geomorphology; landscape; and ecology. Information for each block is represented as layers of GIS maps, “passports”—short, formalized descriptions of the cadastre object, and “files”—comprehensive descriptions of cadastre objects. The set of GIS maps includes a map of bottom sediment distribution, a geomorphologic map, a facial map, a map of anthropogenic load, environmental geological maps, etc., which can be used as a basis for different purposes, including habitat mapping. The project was developed on the basis of software designed by VSEGEI using modern program–technological solutions. An integrated data medium for operation with GIS maps, MS Office documents, raster graphics, photos, etc., was designed. The software application in a local version is simply copied to the user PC. The installation of special GIS or database management systems is not required. The software application is easily transformed for network operation. This means users can work with the cadastre by means of a standard Internet browser. This software technology project can be easily integrated with different GIS technologies. Keywords: cadastre, coastal zone, information system, Baltic Sea.
Local Optical Spectroscopy in Quantum Confined Systems: A Theoretical Description
Creators: name: Mauritz, O.
name: Goldoni, G.
name: Rossi, F.
name: Molinari, E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A theoretical description of local absorption is proposed in order to investigate spectral variations on a length scale comparable with the extension of the relevant quantum states. A general formulation is derived within the density-matrix formalism including Coulomb correlation, and applied to the prototypical case of coupled quantum wires. The results show that excitonic effects may have a crucial impact on the local absorption with implications for the spatial resolution and the interpretation of near-field optical spectra.
description: To appear in Phys. Rev. Lett. - 11 pages, 3 PostScript figures (1 figure in colors) embedded. Uses RevTex, and psfig styles
title: Policy‐driven non‐compliance in the Baltic Sea pelagic fishery
Creators: name: Hentati-Sundberg, J.
name: Hjelm, J.
name: Österblom, H.
Publisher: name: ASC 2011 - Theme session R
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The limited capacity of the Common Fisheries Policy (CFP) of the European Union to deliver on social, economic, and ecological goals is broadly acknowledged. There is an ongoing discussion on options to transform the CFP in a sustainable direction in the current reform process. Negative feedback loops between scientific recommendations for quotas and corresponding political decisions may contribute to a failure to reach agreed goals. The subsequent poor economic prospects in the fishing sector may be contributing to non‐compliance, thereby reducing the capacity of science to perform adequate stock assessment and recommendations. This study uses observed patterns of fishing and reporting, taken from fishers’ logbooks. The study shows how 15 years of policy has created economic incentives for non‐compliance in the Swedish Baltic Sea pelagic fishery. The response of fishers corresponds well to the incentive structure identified: incentives have driven non‐compliance in reporting of fish quantities and species composition in landings. Data indicate that non‐compliance is the rule rather than the exception in this fishery. The design of the TAC (total allowable catches) fisheries management system appears to be a fundamental reason for this pattern. The TAC system has not been successful in limiting fisheries mortality but has instead boosted non‐compliance. The implications of the findings are discussed in the light of the ongoing reform of the Common Fisheries Policy.
Grazing and biodiversity in Transylvanian wood-pastures
Creators: name: Hartel, Tibor
Publisher: name: Zenodo
Year: 2017
Subjects: Agroforestry
Wood pastures
Grazing
Biodiversity

description: Extensively managed wood-pastures are considered archetypes of traditional farming landscapes with high natural and cultural values in Europe. The livestock type used for grazing, as well as the structural features on the pastures, influences the biodiversity value of pastures. Scattered trees and shrubs were valued for their fruits, shade for livestock, beneficial effects on grassland and their beauty.

Within the context of Transylvanian pasture management, the livestock traditionally used for grazing were buffalo, cattle, horses and pigs, while sheep grazing was generally restricted.

Nowadays, wood-pastures are negatively affected by improper grazing management (i.e. overgrazing with sheep) and also by the removal of scattered woody vegetation.
Condensate Oscillations, Kinetic Equations and Two-Fluid Hydrodynamics in a Bose Gas
Creators: name: Griffin, Allan
Publisher: name: arXiv
Year: 2000
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: This is based on 4 lectures given at the 13th Australian Physics Summer School, Australia National University, Canberra, Jan 17-28, 2000. The main topic is the theory of collective modes in a trapped Bose gas at finite temperatures. A generalized Gross-Pitaevskii equation is derived at finite temperatures, which is used to discuss a new mechanism for damping in the collisionless region arising from interactions with a static thermal cloud of non-condensate atoms. Next, introducing a kinetic equation for the thermal cloud, we derive two-fluid equations of motion for the condensate and non-condensate components in the collision-dominated hydrodynamic region. We show that these are precisely the equivalent of the Landau two-fluid equations in the limit that the two components are in diffusive local equilibrium. However, our equations also predict the existence of a new zero frequency relaxational mode, in addition to the usual Landau hydrodynamic modes (such as first and second sound). The special importance and simplicity of two-fluid hydrodynamics is stressed.
description: 50 pages, 7 figures; To appear in "Proceedings of the 13th Physics Summer S chool: Bose-Einstein Condensation", eds. C.M.Savage and M.Das (World Scientific, 2000)
title: Selected highlights from the ECOSUPPORT project
Creators: name: Andersson, H. C.
Publisher: name: ASC 2011 - Theme session R
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The response of the marine ecosystem during the twenty‐first century depends on several, partly competing drivers, such as expected reduced phosphorus and nitrogen loads, increased water temperatures, and reduced salinities. Thus, presently discussed targets for nutrient load reductions to improve the ecological status in the present climate might have a different outcome in future climate conditions. The main aim of ECOSUPPORT is to provide a multimodel system tool to support decision‐makers to assess the anthropogenic impact on the state of the Baltic Sea environment. The tool is based upon scenarios from an existing state‐of‐the‐art coupled atmosphere–ice–ocean–land surface model for the Baltic Sea catchment area, physicalbiogeochemical models of differing complexity, a foodweb model, statistical fish population models, economic calculations, and new data detailing climate effects on marine biota. The expected outcome is an advanced modelling tool for scenario simulations of the whole marine ecosystem that can underpin and inform design strategies to ensure water quality standards, biodiversity, and fish stocks. For the aims of ECOSUPPORT, 14 research groups from 11 institutes and from seven Baltic Sea countries formed a consortium consisting of university institutes, national governmental agencies, and research institutes (including EU‐recognized centres of excellence) with a wide range of expertise. The poster will summarize selected results from the work performed during the project.
In den ÖPNV integrierte Mitnahmesysteme im ländlichen Raum – Wirkungsanalyse und Bewertung
Creators: name: Schmitt, Volker
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: ride-sharing
subject: ride-hailing
subject: Fahrgemeinschaft
subject: ÖPNV
subject: ländlicher Raum
subject: 380
subject: Fahrgemeinschaft
subject: Öffentlicher Personennahverkehr
subject: Ländlicher Raum
subject: Sharing Economy
subject: Verkehrsangebot

description: Zugleich: Dissertation, Universität Kassel, 2018
ERS approximation for solving Schrödinger's equation and applications
Creators: name: Eleuch, Hichem
name: Hilke, Michael
Publisher: name: arXiv
Year: 2018
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new technique was recently developed to approximate the solution of the Schroedinger equation. This approximation (dubbed ERS) is shown to yield a better accuracy than the WKB-approximation. Here, we review the ERS approximation and its application to one and three-dimensional systems. In particular, we treat bound state solutions. We further focus on random potentials in a quantum wire and discuss the solution in the context of Anderson localization.
description: 6 pages
Composite Fermion Picture for Multi-Component Plasmas in 2D Electron-Hole Systems in a Strong Magnetic Field
Creators: name: Wojs, Arkadiusz
name: Szlufarska, Izabela
name: Yi, Kyung-Soo
name: Hawrylak, Pawel
name: Quinn, John J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Low lying states of a 2D electron-hole system contain electrons and one or more types of charged excitonic complexes. Binding energies and angular momenta of these excitonic ions, and the pseudopotentials describing their interactions with electrons and with one another are obtained from numerical studies of small systems. Incompressible fluid ground states of such multi-component plasmas are found in exact numerical diagonalizations. A generalized composite Fermion (CF) picture involving Chern--Simons charges and fluxes of different types is proposed and shown to predict the low lying states at any value of the magnetic field.
description: 4 pages, 3 figures (RevTeX+epsf); talk at EP2DS-XIII
Main clause phenomena and the derivation of adverbial clauses*
Creators: name: Haegeman, Liliane
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2009
Subjects: Main clause phenomena; adverbial clauses; topicalisation; clitic left dislocation; argument/adjunct asymmetry; intervention

description: English adverbial clauses are incompatible with argument fronting (1a) (Haegeman 2006) and with markers of epistemic modality (1b) (Nilsen 2004), while initial adjuncts are allowed (1c). (1) a *When this book I find, I will buy it. b I will come when it may be warmer. c When on Friday he had not arrived, I called him. I will first review an earlier analysis (Haegernan 2003 etc.) of these data in which Irelated the absence of topicalisation in adverbial clauses directly to the absence of illocutionary force, as encoded by a functional head, 'Force' (Rizzi 1997). I will show that this analysis poses a range of theoretical and empirical problems. In the main body of the paper I will propose an alternative analysis according to which the absence of topicalisation in adverbial clauses such as (1a) is accounted for by assuming that such clauses are derived by movement of a (possibly null) operator to the left periphery. (For movement analyses of adverbial clauses cf. Geis 1975, Larson 1987,1990, Dubinsky & WiIliams 1995, Penner & Bader 1995, Demirdache & Etxebarria 2004, Bhatt & Pancheva 2002, 2006.) Some suggestive crosslinguistic and diachronic evidence will be provided in support of this analysis. The movement analysis of adverbial clauses allows us to account for the patterns displayed in (1) as well as for a number of other phenomena such as: (i) the fact that a sub-set of adverbial clauses in English are compatible with topicalisation and with markers of epistemic modality (Haegem an 2006); (ii) the fact that adverbial clauses are more easily compatible with clitic left dislocation in Romance; (iii) the fact that among adverbial clauses in French a distinction is to be found between those that licence stylistic inversion of the subject without requiring any additional trigger and those that require a specific trigger for stylistic inversion (Lahousse 2003, 2005).
description: Selected papers on theoretical and applied linguistics, Vol 18 (2009): Selected Papers from the 18th International Symposium on Theoretical and Aplied Linguistics, Thessaloniki 4-6 May 2007
Protecting large old trees in wood-pastures
Creators: name: Hartel, Tibor
Publisher: name: Zenodo
Year: 2017
Subjects: Agroforestry
Wood pastures
Large old trees

description: Maintaining high biodiversity in production landscapes is a key conservation challenge. Large old trees are keystone structures, conferring high ecological value to pastures. The hollowing parts, the ageing bark and the dry stems, while being biological and ecological legacies, create a wide diversity of habitats for manyorganisms.

Large old trees can have high sociocultural importance in particular contexts (for example in expression of rural identity, and as sites for popular events and tourism).

Large old trees are in severe decline in commodity production landscapes, including pastures, because they arenot explicitly recognized by agricultural, forestry and nature conservation policies.

A key challenge for the sustainability of large old trees on wood-pastures is to ensure their tangible andintangible values are fully recognised by local communities and also, more formally, within agricultural, forestry and nature conservation policies.
High Power n of m_b in Beauty Widths and n=5 -> oo Limit
Creators: name: Bigi, I.
name: Shifman, M.
name: Uraltsev, N.
name: Vainshtein, A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The leading term in the semileptonic width of heavy flavor hadrons depends on the fifth power of the heavy quark mass. We present an analysis where this power can be self-consistently treated as a free parameter n and the width can be studied in the limit n -> oo. The resulting expansion elucidates why the small velocity (SV) treatment is relevant for the inclusive semileptonic b->c transition. The extended SV limit (ESV limit) is introduced. The leading terms in the perturbative alpha_s expansion enhanced by powers of n are automatically resummed by using the low-scale Euclidean mass. The large-n treatment explains why the scales of order m_b/n are appropriate. On the other hand, the scale cannot be too small since the factorially divergent perturbative corrections associated with running of alpha_s show up. Both requirements are met if we use the short-distance mass normalized at a scale around m_b/n \sim 1 GeV. A convenient definition of such low-scale OPE-compatible masses is briefly discussed.
description: 26 pages, 1 figure; plain LaTeX