cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Bringing multiple stakeholders together in the management of marine fisheries: the role of Plan Development Teams in New England sector management
Creators: name: Hawkins, Anne E.
Publisher: name: ASC 2011 - Theme session P
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.United States law mandated the implementation of annual catch levels (ACLs) in all fisheries beginning in 2010. In the same year, a catch share management system replaced the previous daysat‐sea (DAS) framework for the New England groundfish resource. These new management tools could have broad economic and social impacts in the region, and their development and review have occurred through a complex iterative public process that emphasizes extensive interaction among all stakeholders. A key feature of groundfish management is the Plan Development Team (PDT), a group of policy and science experts along with interest groups (e.g. fishers and conservationists) from diverse disciplines. PDTs provide reports to the Council’s committees that develop and evaluate management alternatives, which are presented to the New England Fisheries Management Council for final consideration. The PDT not only incorporates biological advice from stock assessments and the Council’s Scientific and Statistical Committee, but also performs socioeconomic analyses of measures that are included in the Council’s decision‐making process. This paper analyses the role of various interest groups in the New England management process and whether this method has been successful in incorporating a broad range of analysis into final regulatory measures with a focus on its role in the transition to catch shares and ACLs. The PDT process provides a unique example of how multiple interest groups can work together to develop and submit scientific advice to a management body, thereby providing an avenue for all stakeholders to take a direct role in the management process.
title: Numerical investigation of transpiration cooling in supersonic nozzles
Creators: name: KONIG, Valentina
name: MULLER, Siegfried
name: ROM, Michael
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: NUMERICAL MODELING
NOZZLES
HEAT TRANSFER

description: This paper deals with the numerical investigation of transpiration cooling. A coolant is injected through a porous material into a supersonic nozzle where it is interacting with a hot gas flow, a mixture of thermallyperfect calorically-imperfect gases. This setting is modeled using two separate solvers for the nozzle flow and the porous medium flow. These are coupled to each other by boundary conditions imposed at the interface. Numerical simulations in 2D are performed using argon as coolant and a 5-species air model. The cooling effect above the sample and in the wake of the sample is analyzed.
The amorphous solid state: a locally stable thermodynamic phase of randomly constrained systems
Creators: name: Castillo, Horacio E.
name: Goldbart, Paul M.
name: Zippelius, Annette
Publisher: name: arXiv
Year: 1999
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The question of the local stability of the (replica-symmetric) amorphous solid state is addressed for a class of systems undergoing a continuous liquid to amorphous-solid phase transition driven by the effect of random constraints. The Hessian matrix, associated with infinitesimal fluctuations around the stationary point corresponding to the amorphous solid state, is obtained. The eigenvalues of this Hessian matrix are all shown to be strictly positive near the transition, except for one--the zero mode associated with the spontaneously broken continuous translational symmetry of the system. Thus the local stability of the amorphous solid state is established.
description: 18 pages, RevTeX, 3 figures
Data files used for the notebook comparing the performance of InstaNovo v0.1 versus InstaNovo v1.1
Creators: name: Kalogeropoulos, Konstantinos
name: Eloff, Kevin
name: Van Goey, Jeroen
Publisher: name: Zenodo
Year: 2025

description: Data files used for the notebook comparing the performance of InstaNovo v0.1 versus InstaNovo v1.1
title: Knowledge engineering to improve the interface between stakeholders and management in the ecosystem approach to fisheries managemen
Creators: name: Duggan, Deirdre E.
name: Farnsworth, Keith D.
name: Reid, David G.
Publisher: name: ASC 2011 - Theme session P
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The aim of this study is to help stakeholders develop a greater understanding of the effects of their activities and of ecological communities. Community‐level models need to become more accessible and credible to stakeholders, addressing questions directly relevant to them. The objective is to provide a user‐friendly interface between stakeholders and the ecological models in the form of decision‐support tools. To achieve this, a knowledge base of stakeholder preferences and objectives for the ecosystem and resource will be constructed about what aspects are valued and how important each aspect is. This will be accomplished through analysis of stakeholder opinions and values gained from collaboration with scientists within the research team and gaps between scientific and stakeholder objectives will be identified. Information on how stakeholders interpret ecosystem issues and scientific results, and methods of helping the interpretation will be addressed. This knowledge base will be used to create a suite of “common language” indicators, designed to be easily understood by audiences with little ecological expertise, allowing them to associate the relevancy of the indicators with valued environmental aspects but at the same time be scientifically robust. Collaboration with ecological modellers will ensure the technical accuracy of the indicators. The development of a web‐based dashboard interface with user‐manual pages, data source information, and various adjustable fishing scenarios using common language indicators to describe the status of an ecosystem will convey the effects of fishing and fisheries policies to the stakeholders.
Fast algorithm for calculating two-photon absorption spectra
Creators: name: Kurokawa, Yoshiyuki
name: Nomura, Shintaro
name: Takemori, Tadashi
name: Aoyagi, Yoshinobu
Publisher: name: arXiv
Year: 1998
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We report a numerical calculation of the two-photon absorption coefficient of electrons in a binding potential using the real-time real-space higher-order difference method. By introducing random vector averaging for the intermediate state, the task of evaluating the two-dimensional time integral is reduced to calculating two one-dimensional integrals. This allows the reduction of the computation load down to the same order as that for the linear response function. The relative advantage of the method compared to the straightforward multi-dimensional time integration is greater for the calculation of non-linear response functions of higher order at higher energy resolution.
description: 4 pages, 2 figures. It will be published in Phys. Rev. E on 1, March, 1999
مزايا استخدام نظم البحث على الخط المباشر وفي قواعد البيانات المليزرة
Creators: name: علي، أسامة حامد على
Publisher: name: Zenodo
Year: 2004
Subjects: قواعد المعلومات | البحث العلمي | التكنولوجيا | الحاسبات الالكترونية | الأقراص المدمجة | التوثيق | الانترنت | المكتبات | الفهرسة | تصنيف الكتب | تكنولوجيا المعلومات

description: ظلت خدمات البحث على الخط المباشر سيدة نظم استرجاع المعلومات فترة قاربت الربع قرن فيما بين عقد الستينيات وعقد الثمانينيات إذ أتاحت قواعد المعلومات في شتى المجالات الموضوعية لكافة المستفيدين في كافة أرجاء العالم، وكانت نظم استرجاع المعلومات على الخط المباشر تتمتع بالعديد من المزايا التي جعلتها تحتفظ بمكانتها كنظام أساسي لاسترجاع المعلومات حتى وقتنا الحاضر ذلك على الرغم من ظهور نظام آخر لاسترجاع المعلومات في منتصف الثمانينيات يتمثل في أقراص الليزر CD-ROM حيث أخذ هذا الوسيط حيزاً كبيراً من الاهتمام لما تمتع به من مميزات تفوقت على نظم الخط المباشر في كثير من الأحيان وقد أخذت نظم الأقراص المليزرة أهميتها في أنها تتيح كل المعلومات التي تتاح على نظم الخط المباشر وخاصة قواعد البيانات في المجالات الموضوعية المختلفة وقد أثمر ظهور الوسيط الجديد في بدايته وجود منافسة حادة فيما بين النظامين في مجال البحث في قواعد البيانات على وجه الخصوص وقد كان ذلك حافزاً للباحث إلى ضرورة التعرف على هذه المزايا في هذين النظامين وذلك للكشف عن أوجه الاستفادة القصوى من كليهما كوسيطين لاسترجاع وبحث قواعد البيانات في حالة التعرف على واقع هذين النظامين بالمكتبات ومراكز المعلومات الموجودة في جمهورية مصر العربية .ظلت خدمات البحث على الخط المباشر سيدة نظم استرجاع المعلومات فترة قاربت الربع قرن فيما بين عقد الستينيات وعقد الثمانينيات إذ أتاحت قواعد المعلومات في شتى المجالات الموضوعية لكافة المستفيدين في كافة أرجاء العالم، وكانت نظم استرجاع المعلومات على الخط المباشر تتمتع بالعديد من المزايا التي جعلتها تحتفظ بمكانتها كنظام أساسي لاسترجاع المعلومات حتى وقتنا الحاضر ذلك على الرغم من ظهور نظام آخر لاسترجاع المعلومات في منتصف الثمانينيات يتمثل في أقراص الليزر CD-ROM حيث أخذ هذا الوسيط حيزاً كبيراً من الاهتمام لما تمتع به من مميزات تفوقت على نظم الخط المباشر في كثير من الأحيان وقد أخذت نظم الأقراص المليزرة أهميتها في أنها تتيح كل المعلومات التي تتاح على نظم الخط المباشر وخاصة قواعد البيانات في المجالات الموضوعية المختلفة وقد أثمر ظهور الوسيط الجديد في بدايته وجود منافسة حادة فيما بين النظامين في مجال البحث في قواعد البيانات على وجه الخصوص وقد كان ذلك حافزاً للباحث إلى ضرورة التعرف على هذه المزايا في هذين النظامين وذلك للكشف عن أوجه الاستفادة القصوى من كليهما كوسيطين لاسترجاع وبحث قواعد البيانات في حالة التعرف على واقع هذين النظامين بالمكتبات ومراكز المعلومات الموجودة في جمهورية مصر العربية.
Economic benefi ts of grazed apple orchards in England
Creators: name: Burgess, Paul
name: Chinery, Francesca
name: Eriksson, George
name: Pershagen, Erica
name: Pérez-Casenave, Cristina
name: Giannitsopoulos, Michail
Publisher: name: Zenodo
Year: 2017
Subjects: Cider apple orchards
Grazed orchards
Grazing
Sheep

description: Orchard grazing can offer financial and environmental benefits. The experience of stakeholders in the AGFORWARD project is that some lowland sheep breeds (e.g. Shropshire) can successfully graze on orchards which have been pruned to a height of 1-2 m without noticeable losses in apple yields. Sheep producers can profit from an additional source of grass in the orchards, and the release of grazed land for hay production. Orchard owners can profit from reduced mowing costs, increased nitrogen cycling and a rent from the sheep owner. There can also be societal benefits in terms of employment and plant biodiversity.
Reality conditions for (2+1)-dimensional gravity coupled with the Dirac field
Creators: name: Sawaguchi, M.
name: Kim, C. -B.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The canonical formalism of three dimensional gravity coupled with the Dirac field is considered. We introduce complex variables to simplify the Dirac brackets of canonical variables and examine the canonical structure of the theory. We discuss the reality conditions which guarantee the equivalence between the complex and real theory.
description: 13 pages, latex
title: Patterns of variability in Northeast Pacific groundfish recruitment and biomass
Creators: name: Hollowed, Anne
name: Stachura, Megan
name: Mantua, Nate
name: Hilborn, Ray
Publisher: name: ASC 2011 - Theme session Q
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.In the North Pacific, retrospective studies show strong linkages between time trends in northern hemisphere ocean gyre circulation and time trends in groundfish, salmon, and pelagic fish production. Statistical models suggest that the region has experienced at least three potential change points in environmental forcing (1976/77, 1988/89, 1997/98). Recent data suggest that another regime may have occurred in the late 2000s. This paper updates and reviews the evidence of these linkages and develops conceptual models linking fish responses to shifts in ocean conditions. We begin with a review of the exposure of fish to different sources of stress by life stage. Key processes such as prey availability, metabolic requirements, predation, and competition are considered. Key environmental indicators linked to vital rate processes are identified. The statistical relationship between environmental forcing and fish production (growth and recruitment) are evaluated using the indicators selected for this process and the conceptual mechanisms identified by reviewing life‐history processes. Of particular interest for this session is a review of the performance of the statistical models in explaining shifts in fish production over previously observed shifts in environmental forcing. The potential impact of regime shifts on commercial fisheries is examined by incorporating environmental thresholds in a stock projection model.
Implication of GW170817 for cosmological bounces
Creators: name: Ye, Gen
name: Piao, Yun-Song
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The detection of GW170817 and its electromagnetic counterpart has revealed the speed of gravitational waves coincides with the speed of light, $c_T=1$. Inspired by the possibility that the physics implied by GW170817 might be related with that for the primordial universe, we construct the spatially flat stable (throughout the whole evolution) nonsingular bounce models in the beyond Horndeski theory with $c_T=1$ and in the degenerate higher-order scalar-tensor (DHOST) theory with $c_T=1$, respectively. Though it constricts the space of viable models, the constraint of $c_T=1$ makes the procedure of building models simpler.
description: 17 pages, 4 figures; refs added, typos fixed
New Solution to Doublet-Triplet Splitting Problem in SU(N) SUSY GUTs: Towards an Unification of Flavour
Creators: name: Chkareuli, J. L.
name: Kobakhidze, A. B.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The missing VEV solution to the doublet-triplet splitting problem in general SU(N) SUSY GUTs is found. Remarkably enough, it requires a strict equality of numbers of the fundamental colours and flavours in SU(N) and for the even-order groups (N=2k) gives the predominant breaking channel $SU(N) \to SU(k-1)_c\otimes SU(k-1)_f\otimes SU(2)_w\otimes U(1)\otimes U(1)'$ in the parameter natural area. The flavour subsymmetry breaking owing to some generic string inspired extra symmetries of the Higgs superpotential appears not to affect markedly the basic adjoint vacuum configuration in the model. Thus the both salient features of SM just as an interplay between colours and flavours (or families for due assignment of quarks and leptons) so the doublet structure of the weak interactions could be properly understood and accommodated in the framework of the minimal SU(8) model. Among its predictions the most crucial one belongs to the existence on the TeV scale just three families of pseudo-Goldstone bosons and their superpartners 3(5+\bar 5) + SU(5)-singlets which noticeably improve the unification picture of MSSM.
description: 13 pages, LaTeX
Nonlinear $σ$ model for disordered superconductors
Creators: name: Yurkevich, I. V.
name: Lerner, Igor V.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We suggest a novel nonlinear $σ$-model for the description of disordered superconductors. The main distinction from existing models lies in the fact that the saddle point equation is solved non-perturbatively in the superconducting pairing field. It allows one to use the model both in the vicinity of the metal-superconductor transition and well below its critical temperature with full account for the self-consistency conditions. We show that the model reproduces a set of known results in different limiting cases, and apply it for a self-consistent description of the proximity effect at the superconductor-metal interface.
description: Revised version, 8 pages, 1 fig., revtex; final version, as published, contains a few corrections in the summary
The postulates of gravitational thermodynamics
Creators: name: Martinez, Erik A.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The general principles and logical structure of a thermodynamic formalism that incorporates strongly self-gravitating systems are presented. This framework generalizes and simplifies the formulation of thermodynamics developed by Callen. The definition of extensive variables, the homogeneity properties of intensive parameters, and the fundamental problem of gravitational thermodynamics are discussed in detail. In particular, extensive parameters include quasilocal quantities and are naturally incorporated into a set of basic general postulates for thermodynamics. These include additivity of entropies (Massieu functions) and the generalized second law. Fundamental equations are no longer homogeneous first-order functions of their extensive variables. It is shown that the postulates lead to a formal resolution of the fundamental problem despite non-additivity of extensive parameters and thermodynamic potentials. Therefore, all the results of (gravitational) thermodynamics are an outgrowth of these postulates. The origin and nature of the differences with ordinary thermodynamics are analyzed. Consequences of the formalism include the (spatially) inhomogeneous character of thermodynamic equilibrium states, a reformulation of the Euler equation, and the absence of a Gibbs-Duhem relation.
description: 28 pages, Revtex, no figures. An important sentence and several minor corrections included. To appear in Physical Review D
Extreme asteroids in the Pan-STARRS 1 Survey
Creators: name: McNeill, Andrew
name: Fitzsimmons, Alan
name: Jedicke, Robert
name: Lacerda, Pedro
name: Lilly, Eva
name: Thompson, Andrew
name: Trilling, David E.
name: DeMooij, Ernst
name: Hooton, Matthew J.
name: Watson, Christopher A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Using the first 18 months of the Pan-STARRS 1 survey we have identified 33 candidate high-amplitude objects for follow-up observations and carried out observations of 22 asteroids. 4 of the observed objects were found to have observed amplitude $A_{obs}\geq 1.0$ mag. We find that these high amplitude objects are most simply explained by single rubble pile objects with some density-dependent internal strength, allowing them to resist mass shedding even at their highly elongated shapes. 3 further objects although below the cut-off for 'high-amplitude' had a combination of elongation and rotation period which also may require internal cohesive strength, depending on the density of the body. We find that none of the 'high-amplitude asteroids' identified here require any unusual cohesive strengths to resist rotational fission. 3 asteroids were sufficiently observed to allow for shape and spin pole models to be determined through light curve inversion. 45864 was determined to have retrograde rotation with spin pole axes $λ=218\pm 10^{\circ}, β=-82\pm 5^{\circ}$ and asteroid 206167 was found to have best fit spin pole axes $λ= 57 \pm 5^{\circ}$, $β=-67 \pm 5^{\circ}$. An additional object not initially measured with $A_{obs}>1.0$ mag, 49257, was determined to have a shape model which does suggest a high-amplitude object. Its spin pole axes were best fit for values $λ=112\pm 6^{\circ}, β=6\pm 5^{\circ}$. In the course of this project to date no large super-fast rotators ($P_{rot} < 2.2$ h) have been identified.
description: 31 pages; accepted by AJ
Vector boson production in hadronic collisions
Creators: name: Ellis, R. K.
name: Ross, D. A.
name: Veseli, S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the production of $γ^*, W$ and $Z$ vector bosons in hadron-hadron collisions in perturbative QCD. We present results from a new numerical program which gives a full description of the production of the vector bosons and of their decay products. At small $\qt$ the calculation includes resummation of large logarithms and non-perturbative effects. The resummation is matched with the full $O(α_S)$ calculation. In addition, the program correctly reproduces the known $O(α_S)$ cross section when integrated over $\qt$. Besides presenting results for $W$ and $Z$ production at the Tevatron, we also review constraints on the non-perturbative functions using fixed target data on lepton pair production, and make several observations on this topic.
description: 32 pages, latex, 17 postscript figures included
Dynamics of ripple formation in sputter erosion: nonlinear phenomena
Creators: name: Park, S.
name: Kahng, B.
name: Jeong, H.
name: Barabasi, A. -L.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Many morphological features of sputter eroded surfaces are determined by the balance between ion induced linear instability and surface diffusion. However, the impact of the nonlinear terms on the morphology is less understood. We demonstrate that while at short times ripple formation is described by the linear theory, after a characteristic time the nonlinear terms determine the surface morphology by either destroying the ripples, or generating a new rotated ripple structure. We show that the morphological transitions induced by the nonlinear effects can be detected by monitoring the surface width and the erosion velocity.
description: 4 pages, latex, 5 PS figure files
title: Investigation of spatial-temporal patterns of the Eastern cod stock in the Baltic Sea for management application
Creators: name: Kasatkina, S.
name: Gasyukov, P.
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.Data from the Baltic international trawl surveys (BITS) from 1991 to 2009 were used in this study. The authors used the non‐stationary random field model to characterize the density field structure of the eastern cod stock for 2–7 age groups by depth strata in ICES Subdivisions 25, 26, and 28. The patterns of temporal and spatial distributions of cod are described by the components of the fields in the Karhunen–Loève expansion (which is similar to principal component analysis used for density field discretization). Spatial distribution structure is represented by the eigenvectors, while the temporal dynamics are represented by the expansion coefficients. It was revealed that the mean field value and two components of the extension are sufficient to describe 90% of the field variance for age 2 (recruitment) distributions. The same procedure for age groups 3–4 and 5–7 requires three components. This study revealed that it is possible to improve estimates of cod recruitment abundance indices by filtering with subsequent application of expansion coefficients in the shortterm prediction of recruitment, to rebuild the missed abundance indices by years and depth strata when observations were not made, and to improve the BITS design with regard to cod field structure. In addition, evidence with regard to the underestimate of cod recruitment abundance indices in BIAS 1991–2009 has been obtained. This may be explained by the existence of the pelagic components of fish stock that is supported by acoustic observations during BITS and acoustic surveys.
Gravitational radiation reaction and balance equations to post-Newtonian order
Creators: name: Blanchet, L.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational radiation reaction forces and balance equations for energy and momenta are investigated to 3/2 post-Newtonian (1.5PN) order beyond the quadrupole approximation, corresponding to the 4PN order in the equations of motion of an isolated system. By matching a post-Newtonian solution for the gravitational field inside the system to a post-Minkowskian solution (obtained in a previous work) for the gravitational field exterior to the system, we determine the 1PN relativistic corrections to the ``Newtonian" radiation reaction potential of Burke and Thorne. The 1PN reaction potential involves both scalar and vectorial components, with the scalar component depending on the mass-type quadrupole and octupole moments of the system, and the vectorial component depending in particular on the current-type quadrupole moment. In the case of binary systems, the 1PN radiation reaction potential has been shown to yield consistent results for the 3.5PN approximation in the binary's equations of motion. Adding up the effects of tails, the radiation reaction is then written to 1.5PN order. In this paper, we establish the validity to 1.5PN order, for general systems, of the balance equations relating the losses of energy, linear momentum, and angular momentum in the system to the corresponding fluxes in the radiation field far from the system.
description: To appear in Phys. Rev. D
ON THE ISSUE OF SEXUAL DEVELOPMENT DEFICIT IN ADOLESCENT GIRLS
Creators: name: Ibrakhimova, Nodira
Publisher: name: Zenodo
Year: 2024

description: Preserving the health of adolescent girls is considered a promising contribution to the reproductive, intellectual, economic and social reserves of society. Purpose of the study: to compare the severity of sexual development and its delay in teenage girls from different regions of our Republic.
On the Letelier spacetime with quintessence: solution, thermodynamics and Hawking radiation
Creators: name: Costa, Marco M. Dias e
name: Toledo, J. M.
name: Bezerra, V. B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain the solution corresponding to a static and spherically symmetric black hole with a cloud of strings (Letelier spacetime) immersed in a quintessential fluid. We discuss some aspects of its thermodynamics. We also present a discussion about Hawking radiation of particles, in the background under consideration.
title: Assessment of genetic risk in fishes inhabiting zones of dumped chemical munitions in the Baltic Sea
Creators: name: Baršienė, Janina
name: Rybakovas, Aleksandras
name: Lang, Thomas
name: Andreikėnaitė, Laura
name: Grygiel, Wlodzimierz
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.In the Baltic Sea, there are exclusive zones—the Bornholm zone, the Gotland Deep and the Little Belt Sea—where many thousand tonnes of chemical munitions (CM) were dumped after the Second World War. The goal of the study is to assess environmental genotoxicity levels in different fish species inhabiting dumped CM sites with the aim of outlining genetic risk levels, integrating stress and fish population health. Genotoxicity biomarker responses, such as the formation of micronuclei (cytogenetic and DNA damage), nuclear buds (DNA damage), binucleated cells with nucleoplasmic bridges (radionuclide effects), binucleated, 8‐shaped cells (alterations in chromosome segregation and cytokinesis), or fragmented apoptotic cells (elimination of cytogenetic damage), were analysed in blood erythrocytes of flounder, dab, plaice, turbot, herring, and Atlantic cod. Multifactorial analysis of genotoxicity biomarker responses was applied in relation to fish condition and other bioparameters, such as fish age, length, sex, body and liver weight, stomach fullness, and population origin. The main findings of the work were a significant increase of genotoxicity in 2009–2010, compared to 2001–2004, in fish from the Bornholm Basin (up to 57‐times) and the Little Belt (up to 17‐times) CM dumping sites. GIS mapping of 2009–2010 data showed the highest level of genetic risk (responses over threshold level in 80–100% of specimens) in herring and flounder from 14 sampling stations in the Bornholm Basin and at station B01, located closely to the CM dumping site in the Little Belt. The ecological significance of genetic damage, characterized as a long‐term irreversible process, is discussed in relation to the genetic risk for wildlife populations.
Learning sound representations using trainable COPE feature extractors
Creators: name: Strisciuglio, Nicola
name: Vento, Mario
name: Petkov, Nicolai
Publisher: name: arXiv
Year: 2019
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Sound analysis research has mainly been focused on speech and music processing. The deployed methodologies are not suitable for analysis of sounds with varying background noise, in many cases with very low signal-to-noise ratio (SNR). In this paper, we present a method for the detection of patterns of interest in audio signals. We propose novel trainable feature extractors, which we call COPE (Combination of Peaks of Energy). The structure of a COPE feature extractor is determined using a single prototype sound pattern in an automatic configuration process, which is a type of representation learning. We construct a set of COPE feature extractors, configured on a number of training patterns. Then we take their responses to build feature vectors that we use in combination with a classifier to detect and classify patterns of interest in audio signals. We carried out experiments on four public data sets: MIVIA audio events, MIVIA road events, ESC-10 and TU Dortmund data sets. The results that we achieved (recognition rate equal to 91.71% on the MIVIA audio events, 94% on the MIVIA road events, 81.25% on the ESC-10 and 94.27% on the TU Dortmund) demonstrate the effectiveness of the proposed method and are higher than the ones obtained by other existing approaches. The COPE feature extractors have high robustness to variations of SNR. Real-time performance is achieved even when the value of a large number of features is computed.
description: Accepted for publication in Pattern Recognition
From ‘languaging’ to ‘translanguaging’: Reconsidering foreign language teaching and testing through a multilingual lens
Creators: name: Stathopoulou, Maria
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2016
Subjects: interlinguistic mediation; translanguaging; multilingual programme; multilingual testing

description: This paper is the result of a research project exploring the complex nature of interlinguistic mediation, i.e., a translanguaging activity which involves relaying of information from one language to another. Although it is essential for individuals in today's multilingual societies to have acquired the skills that will enable them to use two or more languages in a parallel fashion (an ability also foreseen by the Common European Framework of Reference for Languages - CEFR), mediation has not received much attention. Given this void, this paper stresses the urgent need for the implementation of foreign language programmes that will support the development of interlinguistic mediation strategies and points to the role of language testing in the effort to promote multilingualism.
description: Selected papers on theoretical and applied linguistics, Vol 21 (2016): Selected Papers on Theoretical and Applied Linguistics from ISTAL, Thessaloniki 5-7 April 2013
Temperature-Dependence of the Resistivity of a Dilute 2D Electron System in High Parallel Magnetic Field
Creators: name: Mertes, K. M.
name: Zheng, Hairong
name: Vitkalov, S. A.
name: Sarachik, M. P.
name: Klapwijk, T. M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report measurements of the resistance of silicon MOSFETs as a function of temperature in high parallel magnetic fields where the 2D system of electrons has been shown to be fully spin-polarized. A magnetic field suppresses the metallic behavior observed in the absence of a magnetic field. In a field of 10.8 T, insulating behavior is found for densities up to n_s approximately 1.35 x 10^{11} cm^{-2} or 1.5 n_c; above this density the resistance is a very weak function of temperature, varying less than 10% between 0.25 K and 1.90 K. At low densities the resistance goes to infinity more rapidly as the temperature is reduced than in zero field and the magnetoresistance diverges as T goes to 0.
description: 4 pages, including 4 figures. References added
Book Review: Qin, Yaqing. 2018. A Relational Theory of World Politics. Cambridge: Cambridge University Press. ISBN: 978-1316634257
Creators: name: Yang, Xiao Alvin
Publisher: name: Universität Kassel
Year: 2019
Subjects: subject: Chinese International Relations Theory
subject: Qin Yaqing
subject: World Politics
subject: Chinese Philosophy
subject: Non-Western International Relations Theory
subject: 320
subject: Qin, Yaqing
subject: China
subject: Internationale Politik
subject: Weltpolitik
subject: Philosophie
subject: Rezension

description: CC BY-NC-ND 3.0
Inelastic tunneling through mesoscopic structures
Creators: name: Haule, K.
name: Bonca, J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Our objective is to study resonant tunneling of an electron in the presence of inelastic scattering by optical phonons. Using a recently developed technique, based on exact mapping of a many-body problem onto a one-body problem, we compute transmission through a single site at finite temperatures. We also compute current through a single site at finite temperatures and an arbitrary strength of the potential drop over the tunneling region. Transmission vs. incident electron energy at finite temperatures displays additional peaks due to phonon absorption processes. Current at a voltage bias smaller than the phonon frequency is dominated by elastic processes. We apply the method to an electron tunneling through the Aharonov-Bohm ring coupled to optical phonons. Elastic part of electron-phonon scattering does not affect the phase of the electron. Dephasing occurs only through inelastic processes.
description: 8 pages with figures. Submitted to PRB
Hourglass Weyl loops in two dimensions: Theory and material realization in monolayer GaTeI family
Creators: name: Wu, Weikang
name: Jiao, Yalong
name: Li, Si
name: Sheng, Xian-Lei
name: Yu, Zhi-Ming
name: Yang, Shengyuan A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nodal loops in two-dimensional (2D) systems are typically vulnerable against spin-orbit coupling (SOC). Here, we explore 2D systems with a type of doubly degenerate nodal loops that are robust under SOC and feature an hourglass type dispersion. We present symmetry conditions for realizing such hourglass Weyl loops, which involve nonsymmorphic lattice symmetries. Depending on the symmetry, the loops may exhibit different patterns in the Brillouin zone. Based on first-principles calculations, we identify the monolayer GaTeI-family materials as a realistic material platform to realize such loops. These materials host a single hourglass Weyl loop circling around a high-symmetry point. Interestingly, there is also a spin-orbit Dirac point enabled by an additional screw axis. We show that the hourglass Weyl loop and the Dirac point are robust under a variety of applied strains. By breaking the screw axis, the Dirac point can be transformed into a second Weyl loop. Furthermore, by breaking the glide mirror, the hourglass Weyl loop and the spin-orbit Dirac point can both be transformed into a pair of spin-orbit Weyl points. Our work offers guidance and realistic material candidates for exploring fascinating physics of several novel 2D emergent fermions.
description: 11 pages, 10 figures
title: First attempt to trends assessment of the Gulf of Gdańsk ecosystem ‐ integrated approach
Creators: name: Tomczak, M. T.
name: Szymanek, L.
name: Margoński, P.
name: Ameryk, A.
name: Gromisz, S.
name: Grygiel, W.
name: Grzebielec, R.
name: Kownacka, J.
name: Kuzebski, E.
name: Pastuszak, M.
name: Psuty, I.
name: Warzocha, J.
name: Zalewski, M.
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 outcome of long‐term studies carried out in the Gulf of Gdańsk (southern Baltic Sea) points to changes in primary production, phyto‐ and zooplankton biomass, and fish species assemblages, which may suggest substantial shifts in the ecosystem functioning. Knowing that the Integrated Trend Assessment (ITA) has been successfully used by the ICES/HELCOM Working Group of Integrated Assessment of the Baltic Sea in defining the abrupt changes in the ecosystem of the large subregions of the Baltic Sea, we have decided to apply this approach to statistically test temporal changes in the ecosystem of the Gulf of Gdańsk. We used the following statistical analyses: STARS (sequential t‐test), principal component analysis (PCA), chronological clustering (CC), as well as traffic light plots allowing visualization of the statistical analyses. The numerous environmental (e.g. temperature, oxygen, salinity, nutrients), biological (phytoplankton, zooplankton), and fisheries (landings and cpue) variables constituted the input data for the statistical analyses performed for over one decade. The obtained ITA results point to significant changes in the Gulf of Gdańsk ecosystem on the decadal scale. The outcome of our calculations is presented in the larger, Baltic Sea context.
Δεξιότητες κατανόησης προφορικού και γραπτού λόγου στη διδασκαλία της ελληνικής γλώσσας ως ξένης
Creators: name: Στόιτσιτς, Βόικαν
name: Γκοράνης, Πολύδωρος
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2016
Subjects: Ελληνική γλώσσα; Κατανόηση Προφορικού Λόγου; εγχειρίδια; Νεοελληνικές Σπουδές; Ελληνομάθεια

description: The present paper examines how the skills and recruitment are key structural pillars in the process of learning a foreign language. We analyze the representativeness of exercises to understand spoken and written language in textbooks, which are used in teaching Greek as a foreign language at the Faculty of Philology, University of Belgrade. We have concluded that an integrated and comprehensive teaching of specific skills has contributed, among others, in achieving excellent results in international examinations of the Greek language Ellinomatheia, as a system of external evaluation. As a source for statistical and comparative research we examined the textbooks, which were selected for teaching in Modern Greek courses in the second year of undergraduate academic studies.
description: Selected papers on theoretical and applied linguistics, Vol 21 (2016): Selected Papers on Theoretical and Applied Linguistics from ISTAL, Thessaloniki 5-7 April 2013
Multifractality in Human Heartbeat Dynamics
Creators: name: Ivanov, Plamen Ch.
name: Amaral, Luís A. Nunes
name: Goldberger, Ary L.
name: Havlin, Shlomo
name: Rosenblum, Michael G.
name: Struzik, Zbigniew
name: Stanley, H. Eugene
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Recent evidence suggests that physiological signals under healthy conditions may have a fractal temporal structure. We investigate the possibility that time series generated by certain physiological control systems may be members of a special class of complex processes, termed multifractal, which require a large number of exponents to characterize their scaling properties. We report on evidence for multifractality in a biological dynamical system --- the healthy human heartbeat. Further, we show that the multifractal character and nonlinear properties of the healthy heart rate are encoded in the Fourier phases. We uncover a loss of multifractality for a life-threatening condition, congestive heart failure.
description: 19 pages, latex2e using rotate and epsf, with 5 ps figures; to appear in Nature, 3 June, 1999
Apple orchards grazed in France
Creators: name: Corroyer, Nathalie
Publisher: name: Zenodo
Year: 2017
Subjects: Grazed orchards
Grazing
Apple orchards
Sheep

description: Why graze orchards with sheep? Sheep can reduce the cost of grass mowing in orchards and promote nutrient retention and cycling within the orchard. They can can eat fallen leaves (a refuge for apple scab spores) and fruits (a refuge for pests such as sawfly andcodling moth) which should result in reduced need for pesticide applications. Sheep could also reduce vole populations (which can damage trees). Grass can be used to maintain ewes or fatten lambs, which can increase farm income
Duality and $μ$-separability of Maxwell equations in Kerr-NUT-(A)dS spacetime
Creators: name: Frolov, Valeri P.
name: Krtouš, Pavel
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study properties of a recently proposed new ansatz for separation of variables in the Maxwell equations in four dimensional Kerr-NUT-(A)dS spacetime. We demonstrate that a dual field, which is also a solution of the source-free Maxwell equations, can be presented in a similar form. This result implies that the corresponding separated equations possess a discrete symmetry under a special transform of the separation parameters.
description: 7 pages, no figures [v3 acknowledgments modified, references corrected]
Nonlinear optical response of collective modes in multiband superconductors assisted by nonmagnetic impurities
Creators: name: Murotani, Yuta
name: Shimano, Ryo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In multiband superconductors, multiple collective modes exist associated with the multiple order parameters. Oscillations of the amplitude and the relative phase of the order parameters are called Higgs and Leggett modes, respectively. Recently, it has been suggested that nonmagnetic impurity scattering would enhance nonlinear coupling between the Higgs mode and an electromagnetic wave with a frequency located in the superconducting gap region, while its effect on the Leggett mode is still unresolved. Here, we theoretically investigated the nonlinear optical response of multiband Bardeen-Cooper-Schrieffer-type superconductors in the presence of nonmagnetic impurities with a density matrix approach extending the Mattis-Bardeen model of linear response. We found that the drastic enhancement of nonlinear optical response due to the nonmagnetic impurity scattering occurs only for the Higgs modes and not for the Leggett mode. As a result, both the light-induced dynamics of the superconducting gaps and the resulting third-harmonic generation are dominated by the Higgs modes. We also examined the role of quasiparticle excitations to find that they give the subdominant contribution to the third-harmonic generation.
description: 16 pages, 6 figures
title: Reaching Distance and Online Learners through Virtual Consultations
Creators: name: Homol, Lindley
Publisher: name: University of Massachusetts Amherst
Year: 2017
Subjects: subject: Outreach
subject: distance learning
subject: online learning
subject: virtual consultations
subject: tools
subject: software
subject: Library and Information Science

description: When students have complex research questions, we suggest that they come to the reference desk or schedule an in-person appointment with a librarian. But what about students who do not have the option of visiting the physical library? How do we provide the same level of in-depth research assistance to our distance and online learners? One option is to offer web conference consultations for distance and online students, which better approximate the face-to-face research appointment experience than phone or email transactions. This poster will describe how the library liaison for a predominantly online graduate program took advantage of the library’s online appointment booking system to offer a new service option for these students, one adapted to the unique needs of this student population. The poster will present the benefits, for both students and librarians, of shifting the service model by offering web conference consultations, as well as considerations to keep in mind when implementing this new service. The poster will also outline several low-cost web conference software options, as well as the benefits and drawbacks of each.
description: Trying to connect with distance or online students? Learn about the benefits of implementing virtual research consultations for these student populations and discover several low-cost web conferencing software options.
Present Perfect vs. Simple Past in Greek school textbooks: A competitive relation?
Creators: name: Tsolakidis, Simeon
name: Melissaropoulou, Dimitra
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2016
Subjects: Present Perfect; Simple Past; Greek school textbooks; current relevance; definiteness

description: This paper examines the use and the functions of the Standard Modern Greek Present Perfect A in comparison with those of the Simple Past as presented in Greek school textbooks of Secondary Education. The available data indicate that the relation between the two tenses is both complementary and competitive depending on the environment and the function. Crucially, the attested uses of the Present Perfect are not mentioned in the school grammars. Thus, school texts could contribute to a better usage-based acquaintance with other text-oriented uses of the Present Perfect in comparison with the Simple Past.
description: Selected papers on theoretical and applied linguistics, Vol 21 (2016): Selected Papers on Theoretical and Applied Linguistics from ISTAL, Thessaloniki 5-7 April 2013