cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spectral Structure and Many-Body Dynamics of Ultracold Bosons in a Double-Well
Creators: name: Schäfer, Frank
name: Bastarrachea-Magnani, Miguel A.
name: Lode, Axel U. J.
name: de Parny, Laurent de Forges
name: Buchleitner, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We examine the spectral structure and many-body dynamics of two and three repulsively interacting bosons trapped in a one-dimensional double-well, for variable barrier height, inter-particle interaction strength, and initial conditions. By exact diagonalization of the many-particle Hamiltonian, we specifically explore the dynamical behaviour of the particles launched either at the single particle ground state or saddle point energy, in a time-independent potential. We complement these results by a characterisation of the cross-over from diabatic to quasi-adiabatic evolution under finite-time switching of the potential barrier, via the associated time-evolution of a single particle's von Neumann entropy. This is achieved with the help of the multiconfigurational time-dependent Hartree method for indistinguishable particles (\textsc{Mctdh-x}) -- which also allows us to extrapolate our results for increasing particle numbers.
description: 20 pages, 14 figures
Neutron Star Kicks in Isolated and Binary Pulsars: Observational Constraints and Implications for Kick Mechanisms
Creators: name: Wang, Chen
name: Lai, Dong
name: Han, JinLin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study observational constraints on neutron star (NS) kicks for isolated pulsars and for neutron stars in binary systems. We are particularly interested in the evidence of kick-spin alignment/misalignment and its dependence on the neutron star initial spin period. For several young pulsars, X-ray observations of compact nebulae showed that pulsar proper motion is aligned with the spin direction as defined by the symmetry axis of the nebula. We also critically examine the measurements of the proper motion and the projected spin axis from a large sample of pulsars with well-calibrated polarization data. We find that among the two dozen pulsars for which reliable measurements are available, there is a significant correlation between the spin axis and the proper motion. For various NS binaries, including double NS systems, binaries with massive main-sequence star companion and binaries with massive white-dwarf companion, we obtain constraints on the kick magnitudes and directions from the observed orbital characteristics of the system. We find that the kick velocity is misaligned with the the NS spin axis in a number of systems, and the NS spin period (when available) in these systems is generally longer than several hundreds milliseconds. These constraints, together with spin-kick alignment observed in many isolated pulsars, suggest that the kick timescale is hundreds of milliseconds to 1 s, so that spin-kick alignment or misalignment can be obtained depending on the initial spin period of the NS. We discuss the implication of our result for various NS kick mechanisms.
description: 30 pages, 2 figures, accepted for publication by ApJ
Neural Collaborative Reasoning
Creators: name: Chen, Hanxiong
name: Shi, Shaoyun
name: Li, Yunqi
name: Zhang, Yongfeng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences

description: Existing Collaborative Filtering (CF) methods are mostly designed based on the idea of matching, i.e., by learning user and item embeddings from data using shallow or deep models, they try to capture the associative relevance patterns in data, so that a user embedding can be matched with relevant item embeddings using designed or learned similarity functions. However, as a cognition rather than a perception intelligent task, recommendation requires not only the ability of pattern recognition and matching from data, but also the ability of cognitive reasoning in data. In this paper, we propose to advance Collaborative Filtering (CF) to Collaborative Reasoning (CR), which means that each user knows part of the reasoning space, and they collaborate for reasoning in the space to estimate preferences for each other. Technically, we propose a Neural Collaborative Reasoning (NCR) framework to bridge learning and reasoning. Specifically, we integrate the power of representation learning and logical reasoning, where representations capture similarity patterns in data from perceptual perspectives, and logic facilitates cognitive reasoning for informed decision making. An important challenge, however, is to bridge differentiable neural networks and symbolic reasoning in a shared architecture for optimization and inference. To solve the problem, we propose a modularized reasoning architecture, which learns logical operations such as AND ($\wedge$), OR ($\vee$) and NOT ($\neg$) as neural modules for implication reasoning ($\rightarrow$). In this way, logical expressions can be equivalently organized as neural networks, so that logical reasoning and prediction can be conducted in a continuous space. Experiments on real-world datasets verified the advantages of our framework compared with both shallow, deep and reasoning models.
description: Accepted to the 30th Web Conference (WWW 2021)
title: Lake Thetis domal microbialites
title: A complex framework of cacified biofilms and organomicrites (Cervantes, Western Australia)
titleType: AlternativeTitle
Creators: name: Reitner, Joachim
name: Paul, Josef
name: Arp, Gernot
name: Hause-Reitner, Dorothea
Publisher: name: Geologisches Institut der Georg-August-Universität Göttingen, Göttingen
Year: 1996

description: research
Electronic structure and dynamics of optically excited single-wall carbon nanotubes
Creators: name: Hagen, A.
name: Moos, G.
name: Talalaev, V.
name: Tomm, J. W.
name: Hertel, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the electronic structure and charge-carrier dynamics of individual single-wall carbon nanotubes (SWNTs) and nanotube ropes using optical and electron-spectroscopic techniques. The electronic structure of semiconducting SWNTs in the band-gap region is analyzed using near-infrared absorption spectroscopy. A semi-empirical expression for $E_{11}^{\rm S}$ transition energies, based on tight-binding calculations is found to give striking agreement with experimental data. Time-resolved PL from dispersed SWNT-micelles shows a decay with a time constant of about 15 ps. Using time-resolved photoemission we also find that the electron-phonon ({\it e-ph}) coupling in metallic tubes is characterized by a very small {\it e-ph} mass-enhancement of 0.0004. Ultrafast electron-electron scattering of photo-excited carriers in nanotube ropes is finally found to lead to internal thermalization of the electronic system within about 200 fs.
description: 10 pages, 10 figures, submitted to Applied Physics A
title: Gerd Walter Lüttig
title: 21. September 1926 bis 16. Juli 2010
titleType: AlternativeTitle
Creators: name: Günther, Jürgen
Publisher: name: FID GEO
Year: 2010

description: Nachruf Prof. Dr. Gerd Walter Lüttig
description: DFG, SUB Göttingen, DGMT
description: editorial
Tapinocyba pallens
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Tapinocyba
Tapinocyba pallens

description: Tapinocyba pallens (O. P.-Cambridge, 1872)
 LITERATURE. — Negro et al. 2009; [Rossi & Bosio 2012].
CHOROTYPE. — SIE.
MACROHABITAT. — Alpine prairies.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 82, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Host Galaxies of low z Radio-loud Quasars: A search of HST archives
Creators: name: Pagani, C.
name: Falomo, R.
name: Treves, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We searched the HST archives for unpublished WFPC2 images of low redshift (z<0.5) radio loud quasars (RLQ). This led to the identification of 11 objects. We present here the results of the analysis of these images from which we derive the properties of their host galaxies. All objects are clearly resolved and their surrounding nebulosity is consistent with an elliptical galaxy model. These new data, together with previous published HST observations, form a sample of 34 sources which significantly expands all previous studies of low redshift RLQ based on HST data. For this full sample we derive the average absolute magnitude of the host galaxies =-24.01+/-0.48, and the effective radius =10.5+/-3.7kpc. No significant correlation is found between the nucleus and the host galaxy luminosity. Using the relationship between black hole mass (M_BH) and bulge luminosity we investigate the relation between M_BH and total radio power for RLQ and compare with other classes of radio sources. The overall distribution of AGN in the plane M_BH-P(radio) exhibits a trend for increasing M_BH with increasing P(radio) but with a substantial spread. RLQ occupy the region of most powerful sources and most massive BH. The quasars appear to emit over a wide range of power with respect to their Eddington luminosity as deduced by the estimated M_BH.
description: 23 pages, 8 figures, ApJ in press
Radiatively driven electron-positron jets from two component accretion flows
Creators: name: Chattopadhyay, Indranil
name: Das, Santabrata
name: Chakrabarti, Sandip K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Matter accreting onto black holes has long been known to have standing or oscillating shock waves. The post-shock matter puffs up in the form of a torus, which intercepts soft photons from the outer Keplerian disc and inverse Comptonizes to produce hard photons. The post-shock region also produces jets. We study the interaction of both hard photons and soft photons, with on-axis electron-positron jets. We show that the radiation from post-shock torus accelerates the flow to relativistic velocities, while that from the Keplerian disc has marginal effect. We also show that, the velocity at infinity or terminal velocity ${\vartheta}$, depends on the shock location in the disc.
description: 24 pages, 8 figures, accepted in MNRAS
Tenuiphantes tenebricola
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Tenuiphantes
Tenuiphantes tenebricola

description: Tenuiphantes tenebricola (Wider, 1834)
NEW DATA. — Torgnon: Lo Ditor, 1950 m, peat bog, 26.VII-14. VIII.2013, 1 ♀, leg. Negro.
LITERATURE. — Pavesi 1904; [Isaia 2005]; De Angelis & Fantoni 2008; [Rossi & Bosio 2012].
CHOROTYPE. — SIE.
MACROHABITAT. — Wetlands.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 82, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Exact solutions of two complementary 1D quantum many-body systems on the half-line
Creators: name: Hallnäs, Martin
name: Langmann, Edwin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 82B23, 35J10

description: We consider two particular 1D quantum many-body systems with local interactions related to the root system $C_N$. Both models describe identical particles moving on the half-line with non-trivial boundary conditions at the origin, and they are in many ways complementary to each other. We discuss the Bethe Ansatz solution for the first model where the interaction potentials are delta-functions, and we find that this provides an exact solution not only in the boson case but even for the generalized model where the particles are distinguishable. In the second model the particles have particular momentum dependent interactions, and we find that it is non-trivial and exactly solvable by Bethe Ansatz only in case the particles are fermions. This latter model has a natural physical interpretation as the non-relativistic limit of the massive Thirring model on the half-line. We establish a duality relation between the bosonic delta-interaction model and the fermionic model with local momentum dependent interactions. We also elaborate on the physical interpretation of these models. In our discussion the Yang-Baxter relations and the Reflection equation play a central role.
description: 15 pages, a mistake corrected changing one of our conclusions
Flux-tubes forming instability near the base of the rotating convection zone: A possible explanation for low latitudes of sunspots
Creators: name: Kitchatinov, Leonid
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The rise of flux-tubes with intense magnetic fields from the base of the convection zone to the solar surface has been substantiated as a probable mechanism for sunspot formation. The origin of flux-tubes of sufficient strength (~10^5 G) is however uncertain. This paper considers the instability of a large-scale toroidal magnetic field caused by the magnetic suppression of convective heat transport as a candidate for the flux tube forming mechanism. The consideration employs the analytical dependence of the eddy diffusion on the magnetic field supplied by mean-field magnetohydrodynamics. The instability tends to produce regions of increased field strength with spatial scales of an order of 100 Mm at the base of the convection zone. Characteristic growth times of the instability are short compared to the 11-year cycle. The threshold field strength for the onset of the instability increases from several hundred Gauss in the vicinity of the equator to some kilo-Gauss at middle latitudes. Growth rates of unstable disturbances decrease with latitude. These latitudinal trends can be the reason for the observed confinement of sunspot activity to a near-equatorial belt.
description: Accepted in ApJ, 8 pages, 6 figures
Zur Geologie des Himmelmoores bei Quickborn (Schleswig-Holstein)
Geology of the Himmelmoor (bog) near Quickborn (Schleswig-Holstein)
Creators: name: Grube, Alf
name: Fuest, Tobias
name: Menzel, Philip
Publisher: name: FID GEO
Year: 2010

description: Abstract: Recent geological investigations illuminate the evolutionary history of the bog, that has been excavated since the 18th century. A total of 100 holes were drilled to a depth of 10 m as well as several machine based drillings to about 25 m depth. The Himmelmoor is situated within a depression to the northwest of the salt diapir Quickborn. This depression is partly filled by glacial till and fine grained basin fills, but mainly by glaciofluvial and cold based fluvial sand. At the base of the bog muds (Mudde, Gyttja) occur, above we find black and white peat. The muds are up to 2 m thick. On the „Knust“, a remnant of the former raised bog that has not been excavated, the thickness of the white peat reaches 3,80 m (overall thickness 7,85 m). The initial growth of the bog was initiated mainly by aggradation of small lakes. Part of the peat growth took place on boulder clay (till). Slack flow on these low-permeable sediments evidently led to growth of peat. Hence there is a combination of dominant aggradation growth and local swamp-based bog.
description: Zusammenfassung: Neuere geologische Untersuchungen beleuchten die Entwicklungsgeschichte des seit dem 18. Jahrhundert torfwirtschaftlich genutzten Moores. Insgesamt wurden ca. 100 Bohrungen bis in eine Teufe von ca. 10 m sowie mehrere Rammkernsondierungen bis in ca. 25 m Tiefe niedergebracht. Das Himmelmoor ist in einer dem Salzstock Quickborn benachbarten Senke angelegt. Es wird teilweise durch Geschiebemergel und Becken-Ablagerungen, größtenteils jedoch durch glazifluviatile bis kaltzeitlich-fluviatile Sande unterlagert. An der Basis des Moorkörpers treten flächenhaft Mudden auf, darüber folgen Schwarz- und Weißtorfe. Die Mudden werden maximal 2 m mächtig. Auf dem „Knust“, einem nicht torfwirtschaftlich genutzten Bereich des Moores, wurde mit 3,80 m (bei einer Gesamttorfmächtigkeit von 7,85 Metern) die größte Weißtorfmächtigkeit innerhalb des Himmelmoores festgestellt. Die initiale Moorbildung ging maßgeblich von verlandenden Gewässern aus. Teilweise setzt die Torfbildung unmittelbar auf den Geschiebelehmen und -mergeln auf. Offenbar führte hier Staunässe auf gering durchlässigen Sedimenten zum Moor- bzw. Torfwachstum, so dass eine Kombination aus dominierendem Verlandungsmoor und örtlichem Versumpfungs-Moor besteht. Später führte die Moorentwicklung zur Bildung eines Regenmoores.
description: DFG, SUB Göttingen, DGMT
description: research
Erfassung der Moore in Schleswig-Holstein aus der Sicht des Naturschutzes
Peatland Survey in Schleswig-Holstein from the Viewpoint of Nature Conservation
Creators: name: Eigner, Jürgen
Publisher: name: FID GEO
Year: 1978

description: Die Aufgabe der Hochmoor- und Niedermoorkartierung in Schleswig-Holstein wird mit Zielsetzungen und ersten Ergebnissen vorgestellt. Von der ehemaligen Hochmoorfläche in Schleswig-Holstein sind nach ersten überschläglichen Erhebungen noch 12% auf 5 500 ha in 106 Moorbereichen vorhanden. Diese Ergebnisse und die in vorerst zwei Kreisen begonnene Niedermoorkartierung sollen den schleswig-holsteinischen Landschaftspflegebehörden als Grundlage bei der Abgrenzung und Beurteilung von Moorflächen im Sinne von § 12 des Landschaftspflegegesetzes aus dem Jahre 1973 als Entscheidungshilfe dienen.
description: The objectives of the project of mapping raised bogs and fens in Schleswig-Holstein are presented, first results are communicated. According to rough calculations 12% of the area in former times covered by raised bogs are still existing, i.e. 5 500 ha on 106 sites. These results together with those of mapping fens, which previously has been started in two districts, shall be the basis for the delimitation and estimation of areas which are peatlands in the sense of the law of nature protection in Schleswig-Holstein.
description: DFG, SUB Göttingen
description: research
Efficiency gain and bidirectional operation of quantum engines with decoupled internal levels
Creators: name: de Oliveira, Thiago R.
name: Jonathan, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a mechanism for efficiency increase in quantum heat engines containing internal energy levels that do not couple to the external work sink. The gain is achieved by using these levels to channel heat in a direction opposite to the one dictated by the second law. No quantum coherence, quantum correlations or ergotropy are required. A similar mechanism allows the engine to run in reverse and still produce useful work. We illustrate these ideas using a simple quantum Otto cycle in a coupled-spin system. We find this engine also exhibits other counterintuitive phenomenology. For example, its efficiency may increase as the temperature difference between the heat baths decreases. Conversely, it may cease to operate if the hotter bath becomes too hot or the colder bath too cold.
description: published version with small proof corrections
Potential for Commercial Opportunities in Fisheries
Creators: name: Gordon, Ronald M.
name: Gordon, Ronald M.
Publisher: name: Unknown
Year: 1984
Subjects: Agricultural and Food Policy
Environmental Economics and Policy
International Development

description: The Paper provides a background to the regional fisheries industry, highlighting its strengths as well as its deficiencies. In addition, the current development thrust is outlined. Within this context, the potential for commercial opportunities in the fisheries sector is examined. Finally, current efforts at commercialisation in fisheries are briefly discussed.
SNe Ia from double detonations: Impact of core-shell mixing on the carbon ignition mechanism
Creators: name: Gronow, Sabrina
name: Collins, Christine
name: Ohlmann, Sebastian T.
name: Pakmor, Ruediger
name: Kromer, Markus
name: Seitenzahl, Ivo R.
name: Sim, Stuart A.
name: Roepke, Friedrich K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Sub-Chandrasekhar mass white dwarfs accreting a helium shell on a carbon-oxygen core are potential progenitors of normal Type Ia supernovae. This work focuses on the details of the onset of the carbon detonation in the double detonation sub-Chandrasekhar model. In order to simulate the influence of core-shell mixing on the carbon ignition mechanism, the helium shell and its detonation are followed with an increased resolution compared to the rest of the star treating the propagation of the detonation wave more accurately. This significantly improves the predictions of the nucleosynthetic yields from the helium burning. The simulations were carried out with the AREPO code. A carbon-oxygen core with a helium shell was set up in one dimension and mapped to three dimensions. We ensured the stability of the white dwarf with a relaxation step before the hydrodynamic detonation simulation started. Synthetic observables were calculated with the radiative transfer code ARTIS. An ignition mechanism of the carbon detonation was observed, which received little attention before. In this "scissors mechanism", the impact the helium detonation wave has on unburnt material when converging opposite to its ignition spot is strong enough to ignite a carbon detonation. This is possible in a carbon enriched transition region between the core and shell. The detonation mechanism is found to be sensitive to details of the core-shell transition and our models illustrate the need to consider core-shell mixing taking place during the accretion process. Even though the detonation ignition mechanism differs form the converging shock mechanism, the differences in the synthetic observables are not significant. Though they do not fit observations better than previous simulations, they illustrate the need for multi-dimensional simulations.
description: Accepted for publication in A&A
Kinematics of the faintest gas rich galaxy in the Local Group: DDO210
Creators: name: Begum, Ayesha
name: Chengalur, Jayaram N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present deep, high velocity resolution (~1.6 km/s) Giant Meterwave Radio Telescope (GMRT) HI 21cm synthesis images of the faint (M_B ~ -10.6) local group dwarf galaxy DDO210. We find that the HI distribution in the galaxy is not axi-symmetric, but shows density enhancements in the eastern and southern halves of the galaxy. The optical emission is lopsided with respect to the HI, most of the bright optical emission arises from the eastern half of the HI disk. The velocity field of the galaxy is however quite regular and shows a systematic large scale pattern, consistent with the rotational motion. The rotation curve for the galaxy shows a peak (inclination corrected) rotation velocity of only ~8 km/s, comparable to the random motions in the HI gas. After correcting for the dynamical support provided by random motions (the ``asymmetric drift'' correction), we find the corrected peak rotation velocity of ~16.0 km/s. Mass modeling of the corrected rotation curve shows that the kinematics of DDO210 can be well fit with either a modified isothermal halo (with a central density rho_0 ~ 29 X 10^{-3} M_\odot pc^{-3} for a stellar mass to light ratio of 3.4) or an NFW halo. In the case of the NFW halo however, a good fit is obtained for a wide range of parameters; the halo parameters could not be uniquely determined from the fit. Density profiles with inner slope steeper than ~1.2 however provide a poor fit to the data. Finally, the rotation curve derived using MOND also provides a reasonable fit to the observed rotation curve.
description: 11 pages, 12 figures. Accepted for publication in Astronomy & Astrophysic
Reading and phonologico-morphological characteristics of Arabic: a comparative study of good readers and dyslexics
Creators: name: Naciri, Mohamed
name: El-Mir, Mohammed
Publisher: name: figshare
Year: 2020
Subjects: Applied Psychology

description: Reading is one of the main school competencies which its learning is determinant for school success; in addition to social, professional and cultural integration. However, its learning process may be hampered by many difficulties and disorders, particularly dyslexia. The characteristics of Arabic, particularly phonologico-morphological ones, that differentiated it from other languages, influence the process of learning to read in Arabic, as well as reading disorders such as dyslexia. Although dyslexia is a neurodevelopmental disorder determined by clear symptoms, and is caused by univerasl biological origins; the phonologico-morphological characteristics could facilitate or complicate reading performance, and then deepning dyslexia disorder. The current study aimed to explore the effect of phonologico-morphological characteristics on reading and dyslexia in 20 dyslexics and 20 good readers. The results showed that phonologico-morphological characteristics affected reading and dyslexia.
Tenuiphantes tenuis
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Tenuiphantes
Tenuiphantes tenuis

description: Tenuiphantes tenuis (Blackwall, 1852)
 LITERATURE. — Isaia 2005; Negro et al. 2009; [Rossi & Bosio 2012].
CHOROTYPE. — TUE.
MACROHABITAT. — Coniferous forests, alpine prairies.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 82, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Happiness rates and its association with well-being and religiosity in a sample of university students from Morocco
Creators: name: Abdel-Khalek, Ahmed M.
name: El-Mir, Mohammed
name: Idrissi, Abdellah El
Publisher: name: figshare
Year: 2020
Subjects: Applied Psychology

description: The Arabic research project entitled “Happiness rate and its relation to well-being (WB) and religiosity” was carried out on samples of university students from 14 Arab countries. The aim of this project was to explore happiness rate and its relation to WB variables (rating scales of physical health, mental health, happiness, and satisfaction) as well as religiosity. The present study recruited a sample of male (n = 156) and female (n = 234) university students from Morocco. Results indicated the mediocre rate of happiness of the present sample within the other Arab countries. There were no sex-related differences except on the self-rating scale of mental health in favor of men. All the Pearson correlation coefficients between the study scales were statistically significant and positive in both sexes. Principal components analysis disclosed a high-loaded component and labeled “Well-being and religiosity”. It was concluded that those who consider themselves as happy and in good physical and mental health were more religious. Clinicians may use this finding in counseling and psychotherapy.
Marketing Arrangements for Fish Landed at Sea Lots, Port of Spain, Trinidad & Tobago
Creators: name: Graham, E.
name: Graham, E.
Publisher: name: Unknown
Year: 1984
Subjects: Agricultural and Food Policy
Environmental Economics and Policy
International Development

description: Fish is an important source of protein; and for many families, particularly in certain rural coastal areas, it is still the cheapest and most readily available source of protein. In 1976 the annual per capita consumption of fish and fish products in Trinidad . and Tobago was 22 lb. while the annual per capita production was only 17 lb. In 1980, 3.7m kg of fish and fish product was imported at a cost of $20,293,783 while 4m kg was produced locally with a value of $17,280,904. It has been projected that by 1985 the demand for fish and fish product in Trinidad and tobago will be 20.3m kg annually. A substantial part of the total production of fish in Trinidad and Tobago is met by the efforts of small independent fishermen operating in the inshore area. Between 1966 - 1981 a total of 3377 inshore boats were added to the industry employing some 4132 fishermen. These fishermen operate from 52 landing areas around the coast of Trinidad and Tobago. One such landing area is Sea Lots which is. situated adjacent to the Beetham Highway on the North-western end of Trinidad, in the Gulf of Paria. This study is about the marketing of fresh fish from Sea Lots based on a survey of fishermen.
Additional file 1 of Stress-induced antinociception to noxious heat requires α1A-adrenaline receptors of spinal inhibitory neurons in mice
Creators: name: Uchiyama, Sawako
name: Yoshihara, Kohei
name: Kawanabe, Riku
name: Hatada, Izuho
name: Koga, Keisuke
name: Tsuda, Makoto
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Materials and methods.
The Commercial Potential of Aquaculture in Guyana
Creators: name: Singh, Tej B.
name: Singh, Tej B.
Publisher: name: Unknown
Year: 1984
Subjects: Agricultural and Food Policy
Environmental Economics and Policy
International Development

description: In this paper, it is advocated that agriculture is the most cost effective means of meeting increased demands for fish in Guyana. Its superiority over other forms of protein production systems is discussed. The development of aquaculture in Guyana is traced, and reasons are suggested for lack of significant progress. Recent positive developments are amplified by reference to two examples of fish culture, one intensive fresh water and the other extensive brackish water. Recommendations are made to ensure further developments.
Über den hydrologischen Einfluß der Moore
Creators: name: Eggelsmann, Rudolf
Publisher: name: FID GEO
Year: 1971

description: Über den Einfluß der Moore, speziell der Hochmoore auf den Wasserhaushalt der Landschaft sind die Meinungen seit langem sehr verschieden. Seit 1950 bemüht sich der Ausschuß „Moor und Wasser“ des Kuratoriums für Kulturbauwesen durch hydrologische Untersuchungen Klarheit über den Wasserkreislauf der Moore und über den Einfluß der Landeskultur auf den Wasserhaushalt zu gewinnen. Hierzu wurden in verschiedenen Mooren in Niedersachsen (Königsmoor, Kr. Harburg; Esterweger Dose, Oberharz), Württemberg und Bayern Vieljährig die hydrologischen Elemente wie Niederschlag, Abfluß, Verdunstung, Grundwasser u. a. m. gemessen.
description: DFG, SUB Göttingen
description: research
ITO-Based Microheaters for Reversible Multi-Stage Switching of Phase-Change Materials: Towards Miniaturized Beyond-Binary Reconfigurable Integrated Photonics
Creators: name: Taghinejad, Hossein
name: Abdollahramezani, Sajjad
name: Eftekhar, Ali A.
name: Fan, Tianren
name: Hosseinnia, Amir H.
name: Hemmatyar, Omid
name: Dorche, Ali Eshaghian
name: Gallmon, Alexander
name: Adibi, Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Inducing a large refractive-index change is the holy grail of reconfigurable photonic structures, a goal that has long been the driving force behind the discovery of new optical material platforms. Recently, the unprecedentedly large refractive-index contrast between the amorphous and crystalline states of Ge-Sb-Te (GST)-based phase-change materials (PCMs) has attracted tremendous attention for reconfigurable integrated nanophotonics. Here, we introduce a microheater platform that employs optically transparent and electrically conductive indium-tin-oxide (ITO) bridges for the fast and reversible electrical switching of the GST phase between crystalline and amorphous states. By the proper assignment of electrical pulses applied to the ITO microheater, we show that our platform allows for the registration of virtually any intermediate crystalline state into the GST film integrated on the top of the designed microheaters. More importantly, we demonstrate the full reversibility of the GST phase between amorphous and crystalline states. To show the feasibility of using this hybrid GST/ITO platform for miniaturized integrated nanophotonic structures, we integrate our designed microheaters into the arms of a Mach-Zehnder interferometer to realize electrically reconfigurable optical phase shifters with orders of magnitude smaller footprints compared to existing integrated photonic architectures. We show that the phase of optical signals can be gradually shifted in multiple intermediate states using a structure that can potentially be smaller than a single wavelength. We believe that our study showcases the possibility of forming a whole new class of miniaturized reconfigurable integrated nanophotonics using beyond-binary reconfiguration of optical functionalities in hybrid PCM-photonic devices.
Tiso vagans
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Tiso
Tiso vagans

description: Tiso vagans (Blackwall, 1834)
 LITERATURE. — Negro et al. 2009; [Rossi & Bosio 2012].
CHOROTYPE. — EUR.
MACROHABITAT. — Coniferous forests, alpine prairies.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 82, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Ökotechnische Aspekte der Hochmoor-Regeneration
Ecotechnical Aspects of the Regeneration of Raised Bogs
Creators: name: Eggelsmann, Rudolf
Publisher: name: FID GEO
Year: 1987

description: In Niedersachsen werden während der nächsten zwei bis drei Jahrzehnte vermehrt industriell teilabgetorfte Hochmoorflächen (= Leegmoor) nach dem Ende der Abtorfung zurückgegeben, insgesamt nahezu 30.000 ha. Diese sollen gemäß Niedersächsischem Moorschutzprogramm unter gesetzlichen Naturschutz gestellt, wiedervernäßt und renaturiert werden. Eingangs werden gemessene Daten der Wasserbilanz und daraus abgeleitete ökohydrologische Erkenntnisse dargelegt. Da es gegenwärtig in Nordwestdeutschland keine wachsenden Hochmoore mehr gibt, wird die Morphologie ursprünglicher Hochmoore nach Topographischen Karten 1:25.000 der Jahrhundertwende vorgestellt und es wird auf die Erkenntnisse des Botanikers C. A. WEBER (1901) zurückgegriffen, der die Zusammenhänge zwischen Oberflächen-Morphologie, Moorvegetation und Torfbildung überzeugend dargelegt hat. Die geschilderten ökotechnischen Aspekte basieren auf Ergebnissen teils langjähriger Versuche, die der Autor als wissenschaftlicher Mitarbeiter des Bodentechnologischen Instituts Bremen im Niedersächsischen Landesamt für Bodenforschung gewonnen hat, sowie auf umfangreichen Erfahrungen in der Beratung und auf vielen Besichtigungen und in Diskussionen mit Kollegen aus dem In- und Ausland. Es wurde ferner auf Erkenntnisse der Kulturtechnik in der angewandten Bodenkunde zurückgegriffen, so insbesondere bei den Verfahren der Wiedervernässung.
description: During the coming two to three decades in Lower Saxony more and more raised-bog cutover fields (= Leegmoore), in sum about 30.000 ha, will be given back for other kinds of utilization after peat cutting is finished. According to the Peatland Conservation Programme of Lower Saxony these areas shall be protected by law and shall then be rewetted and renatured. Introductory in this article measured water balance data and ecohydrological perceptions derived therefrom are explained. As at present there are no growing raised bogs in northwestern Germany the original raised-bog surface morphology is described on the basis of the Topographical Maps 1:25.000 from the turn of the century and of the knowledge of the botanist C. A. WEBER (1901) who has convincingly elucidated the relationship between surface morphology, living vegetation, and peat accumulation. The described ecotechnical aspects are based on results of partly longterm field experiments which the author has won as Senior Officer at the Soil-technological Institute Bremen, on extensive experiences in consulting, as well as on many excursions and in discussions with collegues from Germany and foreign countries. Further, the experiences of agricultural engineering in applied flood irrigation have been used, especially with respect to the rewetting processes.
description: DFG, SUB Göttingen
description: research
New bounds on domination and independence in graphs
Creators: name: Harant, Jochen
name: Mohr, Samuel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: G.2.2
subject: 05C69

description: We propose new bounds on the domination number and on the independence number of a graph and show that our bounds compare favorably to recent ones. Our bounds are obtained by using the Bhatia-Davis inequality linking the variance, the expected value, the minimum, and the maximum of a random variable with bounded distribution.
A peculiar type-I X-ray burst from GRS 1747-312
Creators: name: Zand, J. J. M. in 't
name: Strohmayer, T. E.
name: Markwardt, C. B.
name: Swank, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the serendipitous detection with the Rossi X-ray Timing Explorer of a long and peculiar X-ray burst whose localization is consistent with one known X-ray burster (GRS 1747-312) and which occurred when that source was otherwise quiescent. The peculiar feature concerns a strong radius expansion of the neutron star photosphere, which occurred not within a few seconds from the start of the burst, as is standard in radius-expansion bursts, but 20 s later. This suggests that two different layers of the neutron star may have undergone thermonuclear runaways: a hydrogen-rich and a hydrogen-poor layer. The reason for the delay may be related to the source being otherwise quiescent.
description: Submitted to A&A (5 pages, 5 figures)
Simple function forms and nucleon-nucleus total cross sections
Creators: name: Deb, P. K.
name: Amos, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Total cross sections for neutron scattering with energies between 10 and 600 MeV and from nine nuclei spanning the mass range from 6Li to 238U have been analyzed using a simple function of three parameters. The values of those parameters with which neutron total cross section data are replicated vary smoothly with energy and target mass and may themselves be represented by functions of energy and mass.
description: 15 pages, 9 figures
Trichopterna cito
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Trichopterna
Trichopterna cito

description: Trichopterna cito (O. P.-Cambridge, 1872)
 LITERATURE. — Negro et al. 2009; [Rossi & Bosio 2012].
CHOROTYPE. — PAL.
MACROHABITAT. — Coniferous forests, alpine prairies.
 Troglohyphantes lucifuga (Simon, 1884) (Fig. 7)
NEW DATA.— Chabodey, Borna d’la Glace, 1545 m, cave, 16.IX.2014, 3 ♂, leg. Mammola & Isaia; Verrogne, Fessura di Verrogne, 1536 m, cave, 16.IX.2014, 1 ♂, leg. Mammola & Isaia.
 LITERATURE. — Simon 1884; Pavesi 1904; Brignoli 1979; Arnò & Lana 2005; [Isaia 2005]; Isaia et al. 2011; [Rossi & Bosio 2012].
CHOROTYPE. — ALPW.
MACROHABITAT. — Caves.
 NOTES. — In keeping with Simon (1884) and according to Isaia et al. (2010), the record of T. sordellii reported by Pavesi (1904) (Saint Rhémy, Grand Saint Bernard) has to be assigned to T. lucifuga. T. sordellii is an endemic species of Orobian Alps and Prealps of Bergamo, Prealps of Brescia and Prealps of Lugano.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on pages 82-83, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Additional file 2 of Stress-induced antinociception to noxious heat requires α1A-adrenaline receptors of spinal inhibitory neurons in mice
Creators: name: Uchiyama, Sawako
name: Yoshihara, Kohei
name: Kawanabe, Riku
name: Hatada, Izuho
name: Koga, Keisuke
name: Tsuda, Makoto
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Supplementary Figure 1.
Weak damping for the Korteweg-de Vries equation
Creators: name: Capistrano-Filho, Roberto de A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 35Q53, 93B07, 93D15

description: For more than 20 years, the Korteweg-de Vries equation has been intensively explored from the mathematical point of view. Regarding control theory, when adding an internal force term in this equation, it is well known that the Korteweg-de Vries equation is exponentially stable in a bounded domain. In this work, we propose a weak forcing mechanism, with a lower cost than that already existing in the literature, to achieve the result of the global exponential stability to the Korteweg-de Vries equation.
description: 19 pages. comments are welcome
Verbreitung, Typ und Alter der maximalen Vergletscherung der Südvogesen zwischen Bruyères und Epinal
Creators: name: Wenzens, Gerd
Publisher: name: Geozon Science Media
Year: 1989

description: Die weiteste Ausdehnung der maximalen Vergletscherung zwischen Bruyères und Epinal ist äußerst umstritten. Während sie nach Rahm (1970: Karte 1) und Hantke (1978: Karte 2) in diesem Raum in Form einer Kappenvereisung bis an den Fuß des Horstes von Epinal gereicht haben soll, gehen Seret (1980: Fig. 1) und Flageollet (1988: Abb. 7) von einer wesentlich geringeren Vergletscherung aus: Nach ihren Auffassungen stirnte der Vologne-Gletscher nördlich von Granges-sur-Vologne (Abb. 1). Verschiedene Geländebefunde und Berechnungen der Eismächtigkeit weisen demgegenüber auf eine insgesamt wesentlich größere Ausdehnung der maximalen Vergletscherung hin. Zwischen dem Moseldurchbruch und Bruyères stimmte die nördliche Grenze in etwa mit dem von Rahm und Hantke angenommenen Verlauf überein. Im Gegensatz zu Rahm und Hantke, die ein rißeiszeitliches Alter der Vergletscherung postulieren, stellt der Verfasser diesen Vorstoß aufgrund des Verwitterungsgrades der Deckschichten und der noch wenigen erhaltenen Erratika in die Mindel-Kaltzeit.
description: research
Kidney segmentation using 3D U-Net localized with Expectation Maximization
Creators: name: Bazgir, Omid
name: Barck, Kai
name: Carano, Richard A. D.
name: Weimer, Robby M.
name: Xie, Luke
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Kidney volume is greatly affected in several renal diseases. Precise and automatic segmentation of the kidney can help determine kidney size and evaluate renal function. Fully convolutional neural networks have been used to segment organs from large biomedical 3D images. While these networks demonstrate state-of-the-art segmentation performances, they do not immediately translate to small foreground objects, small sample sizes, and anisotropic resolution in MRI datasets. In this paper we propose a new framework to address some of the challenges for segmenting 3D MRI. These methods were implemented on preclinical MRI for segmenting kidneys in an animal model of lupus nephritis. Our implementation strategy is twofold: 1) to utilize additional MRI diffusion images to detect the general kidney area, and 2) to reduce the 3D U-Net kernels to handle small sample sizes. Using this approach, a Dice similarity coefficient of 0.88 was achieved with a limited dataset of n=196. This segmentation strategy with careful optimization can be applied to various renal injuries or other organ systems.
Walckenaeria acuminata Blackwall 1833
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Walckenaeria
Walckenaeria acuminata

description: Walckenaeria acuminata Blackwall, 1833
NEW DATA. — Brissogne, Saint-Marcel, Quart, Nus: Natural Reserve of Les Îles, 530 m, dry meadow, 14.VI-5.VII.2011, 1♀, leg. Paschetta & Giuliano.
LITERATURE. — De Angelis & Fantoni 2008; [Rossi & Bosio 2012].
CHOROTYPE. — EUR.
MACROHABITAT. — Shrublands.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 83, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Multiphysics metamirrors for simultaneous manipulations of acoustic and electromagnetic waves
Creators: name: Díaz-Rubio, Ana
name: Tretyakov, Sergei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Metasurfaces have shown unprecedented possibilities for wavefront manipulation of waves. The research efforts have been focused on the development of metasurfaces that perform a specific functionality for waves of one physical nature, for example, for electromagnetic waves. In this work, we propose the use of power-flow conformal metamirrors for creation of multiphysics devices which can simultaneously control waves of different nature. In particular, we introduce metasurface devices which perform specified operations on both electromagnetic and acoustic waves at the same time. Using a purely analytical model based on surface impedances, we introduce metasurfaces that perform the same functionality for electromagnetic and acoustic waves and, even more challenging, different functionalities for electromagnetics and acoustics. We provide realistic topologies for practical implementations of proposed metasurfaces and confirm the results with numerical simulations.
description: 9 Figures, 10 pages