cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reduction and Realization in Toda and Volterra
Creators: name: Damianou, Pantelis A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Symplectic Geometry (math.SG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53D17, 37J35

description: We construct a new symplectic, bi-hamiltonian realization of the KM-system by reducing the corresponding one for the Toda lattice. The bi-hamiltonian pair is constructed using a reduction theorem of Fernandes and Vanhaecke. In this paper we also review the important work of Moser on the Toda and KM-systems.
description: 17 pages
Electron structure of the Falicov-Kimball model with a magnetic field
Creators: name: Tran, Minh-Tien
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The two-dimensional Falicov-Kimball model in the presence of a perpendicular magnetic field is investigated by the dynamical mean-field theory. Within the model the interplay between electron correlations and the fine electron structure due to the magnetic field is essentially emerged. Without electron correlations the magnetic field induces the electron structure to the so-called Hofstadter butterfly. It is found that when electron correlations drives the metal-insulator transition, they simultaneously smear out the fine structure of the Hofstadter butterfly. In a long-range ordered phase, the electron correlation induced gap preserves the fine structure, but it separates the Hofstadter butterfly into two wings.
title: Ð¡ÐµÐºÑÑÑÐ¸ÑÐ¸Ð·Ð°ÑÐ¸Ñ Ð°ÐºÑÐ¸Ð²Ð¾Ð² Ð¸ ÐµÐµ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð²Ñ Ð½Ð° ÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¼ ÑÑÐ½ÐºÐµ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ¾ÑÐºÐ²Ð¸ÑÐµÐ²Ð°, ÐÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: ÑÐµÐºÑÑÑÐ¸ÑÐ¸Ð·Ð°ÑÐ¸Ñ
Ð¸Ð¿Ð¾ÑÐµÑÐ½ÑÐµ Ð¾Ð±Ð»Ð¸Ð³Ð°ÑÐ¸Ð¸
Ð²Ð°Ð»ÑÑÐ½Ð°Ñ Ð¸Ð¿Ð¾ÑÐµÐºÐ°

description: Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¾ Ð¿Ð¾Ð½ÑÑÐ¸Ðµ ÑÐµÐºÑÑÑÐ¸ÑÐ¸Ð·Ð°ÑÐ¸Ð¸. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ ÑÐµÐ½Ð´ÐµÐ½ÑÐ¸Ð¹ Ð½Ð° ÑÑÐ½ÐºÐµ ÑÐµÐºÑÑÑÐ¸ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð¸ Ð¸Ð¿Ð¾ÑÐµÑÐ½ÑÑ Ð±ÑÐ¼Ð°Ð³ Ð Ð¾ÑÑÐ¸Ð¸. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð° ÑÐµÐºÑÑÐ°Ñ ÐºÑÐ¸Ð·Ð¸ÑÐ½Ð°Ñ ÑÐ¸ÑÑÐ°ÑÐ¸Ñ Ð½Ð° ÑÑÐ½ÐºÐµ Ð²Ð°Ð»ÑÑÐ½Ð¾Ð¹ Ð¸Ð¿Ð¾ÑÐµÐºÐ¸ Ð¸ ÐµÐµ Ð¿ÑÐ¸ÑÐ¸Ð½Ñ. ÐÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÐµ Ð¿ÑÑÐ¸ Ð²ÑÑÐ¾Ð´Ð° Ð¸Ð· ÑÐ»Ð¾Ð¶Ð¸Ð²ÑÐµÐ¹ÑÑ ÑÐ¸ÑÑÐ°ÑÐ¸Ð¸.
Additional file 1 of Integrated multi-omic analysis of low-grade ovarian serous carcinoma collected from short and long-term survivors
Creators: name: Wong, Kwong-Kwok
name: Bateman, Nicholas W.
name: Ng, Chun Wai
name: Tsang, Yvonne T. M.
name: Sun, Charlotte S.
name: Celestino, Joseph
name: Nguyen, Tri V.
name: Malpica, Anais
name: Hillman, R. Tyler
name: Zhang, Jianhua
name: Futreal, P. Andrew
name: Rojas, Christine
name: Conrads, Kelly A.
name: Hood, Brian L.
name: Dalgard, Clifton L.
name: Wilkerson, Matthew D.
name: Phippen, Neil T.
name: Conrads, Thomas P.
name: Maxwell, George L.
name: Sood, Anil K.
name: Gershenson, David M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. Validation of novel somatic mutations from targeted NGS sequencing by Sanger Sequencing. A Somatic UBR5 mutation detected in sample LGS106. B Somatic TP53 mutation detected in sample LGS105. C Somatic ATRX and EPHA3 mutations were detected in sample LGS119. Fig. S2. Validation of DNM3 somatic nonsynonymous mutations in two LGSOCs by Sanger Sequencing. Fig. S3. Twenty differentially expressed proteins shared between two different cohorts (LGSOC_MDACC_DISOVERY and LGSOC_INOVA_VALIDATION). LGSOC_MDACC: n = 7 long (median = 146 months), n = 7 short (median = 24 months; 531 protein alterations, LIMMA p < 0.05). LGSOC_INOVA: n = 4 long (median = 102 months), n = 2 short (median = 33 months), 294 protein alterations, LIMMA p < 0.05). 20 co-altered, Spearman rho = 0.48 for protein abundance; all alterations trends are concordant except for 3 proteins. Fig. S4. Protein expression associated with patients’ survival. Up-regulation of GTF2F1 and TRIM27 transcripts correlate with better survival. Up-regulation of HBA1 correlates with poor survival. Figures were generated at KMplot website ( https://kmplot.com/analysis/index.php?p=service&cancer=ovar ). Fig. S5. Differentially expressed phosphosites between long-term and short-term survivors. A Heatmap of differentially expressed phosphoproteins between long-term and short-term survivors; LIMMA p < 0.01, fold-change ± 1.5. B Long-term and short-term survivors were separated by principal component analysis (PCA) with differentially expressed phosphoproteins PCA of protein alterations shown in A served to explain 59.1% and 10.4% of the variance between short and long-term survivors. Fig. S6. Correlation of 62 significantly differentially expressed genes with co-quantified proteins.
Break-A-Scene: Extracting Multiple Concepts from a Single Image
Creators: name: Avrahami, Omri
name: Aberman, Kfir
name: Fried, Ohad
name: Cohen-Or, Daniel
name: Lischinski, Dani
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Graphics (cs.GR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Text-to-image model personalization aims to introduce a user-provided concept to the model, allowing its synthesis in diverse contexts. However, current methods primarily focus on the case of learning a single concept from multiple images with variations in backgrounds and poses, and struggle when adapted to a different scenario. In this work, we introduce the task of textual scene decomposition: given a single image of a scene that may contain several concepts, we aim to extract a distinct text token for each concept, enabling fine-grained control over the generated scenes. To this end, we propose augmenting the input image with masks that indicate the presence of target concepts. These masks can be provided by the user or generated automatically by a pre-trained segmentation model. We then present a novel two-phase customization process that optimizes a set of dedicated textual embeddings (handles), as well as the model weights, striking a delicate balance between accurately capturing the concepts and avoiding overfitting. We employ a masked diffusion loss to enable handles to generate their assigned concepts, complemented by a novel loss on cross-attention maps to prevent entanglement. We also introduce union-sampling, a training strategy aimed to improve the ability of combining multiple concepts in generated images. We use several automatic metrics to quantitatively compare our method against several baselines, and further affirm the results using a user study. Finally, we showcase several applications of our method. Project page is available at: https://omriavrahami.com/break-a-scene/
description: SIGGRAPH Asia 2023. Project page: at: https://omriavrahami.com/break-a-scene/ Video: https://www.youtube.com/watch?v=-9EA-BhizgM
Broadband Imaging Segregation of z ~ 3 Ly-alpha Emitting and Ly-alpha Absorbing Galaxies
Creators: name: Cooke, Jeff
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The spectral properties of Lyman break galaxies (LBGs) offer a means to isolate pure samples displaying either dominant Ly-alpha in absorption or Ly-alpha in emission using broadband information alone. We present criteria developed using a large z ~ 3 LBG spectroscopic sample from the literature that enables large numbers of each spectral type to be gathered in photometric data, providing good statistics for multiple applications. In addition, we find that the truncated faint, blue-end tail of z ~ 3 LBG population overlaps and leads directly into an expected Ly-alpha emitter (LAE) population. As a result, we present simple criteria to cleanly select large numbers of z ~ 3 LAEs in deep broadband surveys. We present the spectroscopic results of 32 r'
description: 5 pages, 4 figures (7 panels), accepted to ApJ Letters
title: Analysis of clustering of energy price quotations from the Day-Ahead Market (Day-Ahead-Trading) of the Polish Power Exchange (TGE) in Poland in 2022-2023 using the k-means method
Creators: name: Lazarek-Janowska, Magdalena
name: Włoch, Paweł
Publisher: name: Poznań University of Technology
publisherIdentifier: https://ror.org/00p7p3302
publisherIdentifierScheme: ROR
Year: 2024

description: Zeszyty Naukowe Politechniki Poznańskiej. Organizacja i Zarządzanie, 90, 191-210
Entanglement dynamics in U(1) symmetric hybrid quantum automaton circuits
Creators: name: Han, Yiqiu
name: Chen, Xiao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the entanglement dynamics of quantum automaton (QA) circuits in the presence of U(1) symmetry. We find that the second Rényi entropy grows diffusively with a logarithmic correction as $\sqrt{t\ln{t}}$, saturating the bound established by Huang [IOP SciNotes 1, 035205 (2020)]. Thanks to the special feature of QA circuits, we understand the entanglement dynamics in terms of a classical bit string model. Specifically, we argue that the diffusive dynamics stems from the rare slow modes containing extensively long domains of spin 0s or 1s. Additionally, we investigate the entanglement dynamics of monitored QA circuits by introducing a composite measurement that preserves both the U(1) symmetry and properties of QA circuits. We find that as the measurement rate increases, there is a transition from a volume-law phase where the second Rényi entropy persists the diffusive growth (up to a logarithmic correction) to a critical phase where it grows logarithmically in time. This interesting phenomenon distinguishes QA circuits from non-automaton circuits such as U(1)-symmetric Haar random circuits, where a volume-law to an area-law phase transition exists, and any non-zero rate of projective measurements in the volume-law phase leads to a ballistic growth of the Rényi entropy.
description: 17 pages, 14 figures
Simulating the impact of dust cooling on the statistical properties of the intracluster medium
Creators: name: Pointecouteau, E.
name: Da Silva, A.
name: Catalano, A.
name: Montier, L.
name: Lanoux, J.
name: Roncarelli, M.
name: Giard, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: From the first stages of star and galaxy formation, non-gravitational processes such as ram pressure stripping, SNs, galactic winds, AGNs, galaxy-galaxy mergers, etc... lead to the enrichment of the IGM in stars, metals as well as dust, via the ejection of galactic material into the IGM. We know now that these processes shape, side by side with gravitation, the formation and the evolution of structures. We present here hydrodynamic simulations of structure formation implementing the effect of the cooling by dust on large scale structure formation. We focus on the scale of galaxy clusters and study the statistical properties of clusters. Here we present our results on the $T_X-M$ and the $L_X-M$ scaling relations which exhibit changes on both the slope and normalization when adding cooling by dust to the standard radiative cooling model. For example, the normalization of the $T_X-M$ relation changes only by a maximum of 2% at $M=10^{14}$ M$_\odot$ whereas the normalization of the $L_X-T_X$ changes by as much as 10% at $T_X=1$ keV for models that including dust cooling. Our study shows that the dust is an added non-gravitational process that contributes shaping the thermodynamical state of the hot ICM gas.
description: 11 pages, 4 figures, ASR in press
Spiral density wave triggering of star formation in SA and SAB galaxies
Creators: name: Martínez-García, Eric E.
name: González-Lópezlira, Rosa Amelia
name: Bruzual-A., Gustavo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Azimuthal color (age) gradients across spiral arms are one of the main predictions of density wave theory; gradients are the result of star formation triggering by the spiral waves. In a sample of 13 spiral galaxies of types A and AB, we find that 10 of them present regions that match the theoretical predictions. By comparing the observed gradients with stellar population synthesis models, the pattern speed and the location of major resonances have been determined. The resonance positions inferred from this analysis indicate that 9 of the objects have spiral arms that extend to the outer Lindblad resonance (OLR); for one of the galaxies, the spiral arms reach the corotation radius. The effects of dust, and of stellar densities, velocities, and metallicities on the color gradients are also discussed.
description: Accepted in ApJ, 74 pages and 41 figures
title: ÐÐ°ÑÐµÑÐ¸Ð°Ð»Ñ Ð½Ð°ÑÑÐ½Ð¾Ð¹ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ð¸ Ñ Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½ÑÐ¼ ÑÑÐ°ÑÑÐ¸ÐµÐ¼ "ÐÐµÐ´ÐµÐ»Ñ Ð½Ð°ÑÐºÐ¸ Ð¡ÐÐ±ÐÐ£", 19-24 Ð½Ð¾ÑÐ±ÑÑ 2018 Ð³Ð¾Ð´Ð°. ÐÐ½ÑÑÐ¸ÑÑÑ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÐºÐ¸ Ð¸ ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ½ÑÑ ÑÐ¸ÑÑÐµÐ¼. Ð§. 2
Creators: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2019
Subjects: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
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description: Ð ÑÐ±Ð¾ÑÐ½Ð¸Ðº Ð²ÐºÐ»ÑÑÐµÐ½Ñ ÑÑÐ°ÑÑÐ¸ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð², Ð°ÑÐ¿Ð¸ÑÐ°Ð½ÑÐ¾Ð², Ð¼Ð¾Ð»Ð¾Ð´ÑÑ ÑÑÐµÐ½ÑÑ Ð¸ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ¾Ð² Ð¡ÐÐ±ÐÐ£, ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ¾Ð², Ð½Ð°ÑÑÐ½ÑÑ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¹ Ð¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¹
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Spiky Strings with Two Spins in AdS5
Creators: name: Ryang, Shijong
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the reduction of the string sigma model to the 1-d Neumann integrable model we reconstruct the closed string solution with two equal spins in AdS_5 which is specified by the number of round arcs and one winding number. From the string sigma model itself as well as its reducion to the Neumann-Rosochatius system we construct a spiky string solution with two unequal spins in AdS_5 whose ratio is fixed and derive its energy-spin relation. The string configuration is characterized by the number of spikes and two equal winding numbers associated with the two rotating angular directions.
A neutropenic diet in haemato-oncological patients receiving high-dose therapy and hematopoietic stem cell transplantation : a systematic review
Creators: name: Jahns, Luise
name: Hübner, Jutta
name: Mensger, Christina
name: Matthies, Viktoria
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2025
Subjects: subject: 610

description: Background/Objectives: Although the benefits of low-germ diets for patients are increasingly being questioned, their application in practice is widespread. The aim of this review is to summarise the current data and evaluate the effectiveness of the neutropenic diet (ND) in adult haemato-oncological patients to provide a basis for practical guidelines. Methods: A systematic search was conducted in four electronic databases (Medline (Ovid), CINAHL (EBSCO), EMBASE (Ovid) and Cochrane CENTRAL) to identify English and German randomised controlled trials (RCTs) concerning the effectiveness of an ND in adult haematological patients. The main endpoints were fever and systemic infections, gastrointestinal (GI) infections, mortality, nutritional status and hospitalisation length. Results: A total of five RCTs with 510 adult patients were included in this systematic review. All patients received high-dose chemotherapy in order to treat haemato-oncological malignancies. None of the analysed endpoints showed a significant advantage of the ND compared to the control group. Conclusions: An ND does not have a beneficial effect on infection rates, GI health, mortality or hospitalisation length for haemato-oncological patients. On the contrary, an ND tends to negatively affect the patient’s nutritional status; therefore, an adaption in clinical routine should take place.
Chemo-Dynamical Tagging in the Outskirts: The Origins of Stellar Substructures in the Magellanic Clouds
Creators: name: Muñoz, César
name: Monachesi, Antonela
name: Nidever, David L.
name: Majewski, Steven R.
name: Cheng, Xinlun
name: Olsen, Knut
name: Choi, Yumi
name: Zivick, Paul
name: Geisler, Douglas
name: Almeida, Andres
name: Muñoz, Ricardo R.
name: Nitschelm, Christian
name: Roman-Lopes, Alexandre
name: Lane, Richard R.
name: Fernández-Trincado, José G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first detailed chemical analysis from APOGEE-2S observations of stars in six regions of recently discovered substructures in the outskirts of the Magellanic Clouds extending to 20 degrees from the LMC center. We also present, for the first time, the metallicity and alpha-abundance radial gradients of the LMC and SMC out to 11 degrees and 6 degrees, respectively. Our chemical tagging includes 13 species including light, alpha, and Fe-peak elements. We find that the abundances of all of these chemical elements in stars populating two regions in the northern periphery - along the northern "stream"-like feature - show good agreement with the chemical patterns of the LMC, and thus likely have an LMC origin. For substructures located in the southern periphery of the LMC, we find more complex chemical and kinematical signatures, indicative of a mix of LMC-like and SMC-like populations. However, the southern region closest to the LMC shows better agreement with the LMC, whereas that closest to the SMC shows a much better agreement with the SMC chemical pattern. When combining this information with 3-D kinematical information for these stars, we conclude that the southern region closest to the LMC has likely an LMC origin, whereas that closest to the SMC has an SMC origin, and the other two southern regions have a mix of LMC and SMC origins. Our results add to the evidence that the southern substructures of the LMC periphery are the product of close interactions between the LMC and SMC, and thus likely hold important clues that can constrain models of their detailed dynamical histories.
description: 21 pages, 15 figures, 9 tables; Accepted for publication in A&A
Neural-symbolic learning for knowledge base completion
Creators: name: Xia, Shuang
Publisher: name: Imperial College London
Year: 2022

description: A query answering task computes the prediction scores of ground queries inferred from a Knowledge Base (KB). Traditional symbolic-based methods solve this task using ‘exact’ provers. However, they are not very scalable and difficult to apply to current large KBs. Sub-symbolic methods have recently been proposed to address this problem. They require to be trained to learn the semantics of the symbolic representation and use it to make predictions about query answering. Such predictions may rely upon unknown rules over the given KB. Not all proposed sub-symbolic systems are capable of inducing rules from the KB; and even more challenging is the learning of rules that are human interpretable. Some approaches, e.g., those based on a Neural Theorem Prover (NTP), are able to address this problem but with limited scalability and expressivity of the rules that they can induce. We take inspiration from the NTP framework and propose three sub-symbolic architectures that solve the query answering task in a scalable manner while supporting the induction of more expressive rules. Two of these architectures, called Topical NTP (TNTP) and Topic-Subdomain NTP (TSNTP), address the scalability aspect. Trained representations of predicates and constants are clustered and the soft-unification of the backward chaining proof procedure that they use is controlled by these clusters. The third architecture, called Negation-as-Failure TSNTP (NAF TSNTP), addresses the expressivity of the induced rules by supporting the learning of rules with negation-as-failure. All these architectures make use of additional hyperparameters that encourage the learning of induced rules during training. Each architecture is evaluated over benchmark datasets with increased complexity in size of the KB, number of predicates and constants present in the KB, and level of incompleteness of the KB with respect to test sets. The evaluation measures the accuracy of query answering prediction and computational time. The former uses two key metrics, AUC_PR and HITS, adopted also by existing sub-symbolic systems that solve the same task, whereas the computational time is in terms of CPU training time. The evaluation performance of our systems is compared against that of existing state-of-the-art sub-symbolic systems, showing that our approaches are indeed in most cases more accurate in solving query answering tasks, whilst being more efficient in computational time. The increased accuracy in some tasks is specifically due to the learning of more expressive rules, thus demonstrating the importance of increased expressivity in rule induction.
title: ÐÐ¾Ð½ÑÐ»Ð¸ÐºÑÐ¾Ð»Ð¾Ð³Ð¸Ñ
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐ°ÑÐ°Ð½Ð¾Ð²Ð°, Ð¢Ð°ÑÑÑÐ½Ð°
Publisher: name: ÐÐ·Ð´-Ð²Ð¾ ÐÐ¾Ð»Ð¸ÑÐµÑÐ½. ÑÐ½-ÑÐ°
Year: 2012
Subjects: ÐºÐ¾Ð½ÑÐ»Ð¸ÐºÑÐ¾Ð»Ð¾Ð³Ð¸Ñ
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description: Ð¡Ð¾Ð´ÐµÑÐ¶Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐ°Ð·Ð´ÐµÐ»Ñ ÐºÑÑÑÐ° ÐºÐ¾Ð½ÑÐ»Ð¸ÐºÑÐ¾Ð»Ð¾Ð³Ð¸Ð¸. ÐÑÐ¸ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¾ Ð½Ð° ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½ÑÑ ÑÐ°Ð±Ð¾ÑÑ, Ð¿Ð¾Ð²ÑÐ¾ÑÐµÐ½Ð¸Ðµ Ð»ÐµÐºÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°, Ð° ÑÐ°ÐºÐ¶Ðµ Ð½Ð°
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Ð¿Ð¾Ð²ÑÐ¾ÑÐµÐ½Ð¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ðµ ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¸ Ð²Ð¾Ð¿ÑÐ¾ÑÑ Ðº ÑÐºÐ·Ð°Ð¼ÐµÐ½Ñ, ÑÐ¿Ð¸ÑÐ¾Ðº Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ, Ð³Ð»Ð¾ÑÑÐ°ÑÐ¸Ð¹. ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°ÑÐµÐ»ÐµÐ¹ Ð¸ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð·Ð°Ð¾ÑÐ½Ð¾Ð³Ð¾ Ð¾ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ñ
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The SPLASH Survey: A Spectroscopic Portrait of Andromeda's Giant Southern Stream
Creators: name: Gilbert, Karoline M.
name: Guhathakurta, Puragra
name: Kollipara, Priya
name: Beaton, Rachael L.
name: Geha, Marla C.
name: Kalirai, Jason S.
name: Kirby, Evan N.
name: Majewski, Steven R.
name: Patterson, Richard J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The giant southern stream (GSS) is the most prominent tidal debris feature in M31's stellar halo. The GSS is composed of a relatively metal-rich, high surface-brightness "core" and a lower metallicity, lower surface brightness "envelope." We present Keck/DEIMOS spectroscopy of red giant stars in six fields in the vicinity of M31's GSS and one field on Stream C, an arc-like feature on M31's SE minor axis at R=60 kpc. Several GSS-related findings and measurements are presented here. We present the innermost kinematical detection of the GSS core to date (R=17 kpc). This field also contains the continuation of a second kinematically cold component originally seen in a GSS core field at R=21 kpc. The velocity gradients of the GSS and the second component in the combined data set are parallel over a radial range of 7 kpc, suggesting a possible bifurcation in the line-of-sight velocities of GSS stars. We also present the first kinematical detection of substructure in the GSS envelope. Using kinematically identified samples, we show that the envelope debris has a ~0.7 dex lower mean photometric metallicity and possibly higher intrinsic velocity dispersion than the GSS core. The GSS is also identified in the field of the M31 dSph satellite And I; the GSS in this field has a metallicity distribution identical to that of the GSS core. We confirm the presence of two kinematically cold components in Stream C, and measure intrinsic velocity dispersions of ~10 and ~4 km/s. This compilation of the kinematical (mean velocity, intrinsic velocity dispersion) and chemical properties of stars in the GSS core and envelope, coupled with published surface brightness measurements and wide-area star-count maps, will improve constraints on the orbit and internal structure of the dwarf satellite progenitor.
description: Accepted for publication in ApJ
Wear modelling and simulation in moving geometries
Creators: name: Ip, Lily
Publisher: name: Imperial College London
Year: 2021

description: The aim of this thesis is to describe the new wear modelling framework for the numerical simulation of fully coupled multiphase flows with dynamic boundary motion in response to wear. The framework considers the combination of coupling fluid flow, particle motion, wear modelling and boundary movement within a single model which has not yet been achieved in research. This is of significance in the minerals processing industry from both economical and safety aspects due to the degradation of components as a result of wear from the abrasive nature of slurry flows. The wear modelling framework uses a hybrid Eulerian-Lagrangian modelling approach which tracks particle trajectory with representative Lagrangian particles, with particle-particle interactions modelled statistically through the use of the kinetic theory of granular flow. This approach allows for full coupling of the phases with particle trajectory information required for wear modelling whilst remaining computationally feasible through the use of representative particles. Boundary movement in response to wear uses an anisotropic unstructured adap tive mesh approach which allows the mesh to move in response to a specified grid velocity and also optimised in order to provide resolution in areas important to the chosen fields and decrease in areas not required at specified time steps. The wear modelling framework takes place between a Python based Lagrangian particle module coupled with a computational fluid dynamics framework developed within Imperial College London called Fluidity. The framework can be applied to the study of component wear when subject to solid particles entrained in fluids. Component wear is a key consideration in many industries working with particle-laden flow as the study of wear through experimentation or in the field is time consuming and expensive. Simulation of jet impingement in two dimensions confirms the behaviour of boundary deformation in response to wear. A comprehensive study of Coriolis tester arm simulations are conducted to understand the effects of physical parameters on the wear profile obtained. Results are compared with experimental data from Weir Minerals and numerical simulations using the wear modelling framework are able to accurately capture the key characteristics of the wear profile and the behaviour of the particles.
Collective Radiative Interactions in the Discrete Truncated Wigner Approximation
Creators: name: Mink, Christopher D.
name: Fleischhauer, Michael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Interfaces of light and matter serve as a platform for exciting many-body physics and photonic quantum technologies. Due to the recent experimental realization of atomic arrays at sub-wavelength spacings, collective interaction effects such as superradiance have regained substantial interest. Their analytical and numerical treatment is however quite challenging. Here we develop a semiclassical approach to this problem that allows to describe the coherent and dissipative many-body dynamics of interacting spins while taking into account lowest-order quantum fluctuations. For this purpose we extend the discrete truncated Wigner approximation, originally developed for unitarily coupled spins, to include collective, dissipative spin processes by means of truncated correspondence rules. This maps the dynamics of the atomic ensemble onto a set of semiclassical, numerically inexpensive stochastic differential equations. We benchmark our method with exact results for the case of Dicke decay, which shows excellent agreement. For small arrays we compare to exact simulations and a second order cumulant expansion, again showing good agreement at early times and at moderate to strong driving. We conclude by studying the radiative properties of a spatially extended three-dimensional, coherently driven gas and compare the coherence of the emitted light to experimental results.
description: 25 pages, 5 figures
Molecular astronomy of cool stars and sub-stellar objects
Creators: name: Bernath, Peter F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The optical and infrared spectra of a wide variety of `cool' astronomical objects including the Sun, sunspots, K-, M- and S-type stars, carbon stars, brown dwarfs and extrasolar planets are reviewed. The review provides the necessary astronomical background for chemical physicists to understand and appreciate the unique molecular environments found in astronomy. The calculation of molecular opacities needed to simulate the observed spectral energy distributions is discussed.
Maxwell's Demon walks into Wall Street: Stochastic Thermodynamics meets Expected Utility Theory
Creators: name: Ducuara, Andres F.
name: Skrzypczyk, Paul
name: Buscemi, Francesco
name: Sidajaya, Peter
name: Scarani, Valerio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The interplay between thermodynamics and information theory has a long history, but its quantitative manifestations are still being explored. We import tools from expected utility theory from economics into stochastic thermodynamics. We prove that, in a process obeying Crooks' fluctuation relations, every $α$ Rényi divergence between the forward process and its reverse has the operational meaning of the ``certainty equivalent'' of dissipated work (or, more generally, of entropy production) for a player with risk aversion $r=α-1$. The two known cases $α=1$ and $α=\infty$ are recovered and receive the new interpretation of being associated to a risk-neutral and an extreme risk-averse player respectively. Among the new results, the condition for $α=0$ describes the behavior of a risk-seeking player willing to bet on the transient violations of the second law. Our approach further leads to a generalized Jarzynski equality, and generalizes to a broader class of statistical divergences.
description: 5 pages, 1 figure
Additional file 1 of Haplotype variations of sucrose phosphate synthase B gene among sugarcane accessions with different sucrose content
Creators: name: Liu, Hongbo
name: Lin, Xiuqin
name: Li, Xujuan
name: Luo, Ziliang
name: Lu, Xin
name: You, Qian
name: Yang, Xiping
name: Xu, Chaohua
name: Liu, Xinlong
name: Liu, Jiayong
name: Wu, Caiwen
name: Wang, Jianping
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. The amplification of SPSB gene for 18 germplasms, M: markers, the size is 5000bp, 3000bp, 2000bp, 1500bp, 1000bp, 750bp, 500bp, 250bp, 100bp;1: Badila, 2: India1, 3: Guangze bamboo cane, 4: katha, 5: YZ02-588, 6: Dezhe93-88, 7: YZ14-401, 8: YZ14-405, 9: YT00-236, 10: YZ14-407, 11: GT12, 12: YZ94-343, 13: YZ14-402, 14: YZ14-403, 15: YZ14-404, 16: YZ14-406, 17: YZ14-408, 18: ROC22.
title: ÐÐ¾Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ° Ð¸ÑÐ¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¾ÑÐ³Ð°Ð½Ð¾Ð² Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð²Ð»Ð°ÑÑÐ¸
title: ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½ÑÐ¹ ÑÑÐµÐ±Ð½Ð¸Ðº
titleType: Subtitle
Creators: name: ÐÐ¾Ð»ÐµÑÐ½Ð¸ÐºÐ¾Ð², Ð®ÑÐ¸Ð¹
name: Ð¡Ð°Ð¼Ð¾ÑÑÐºÐ¾Ð², ÐÑÑÐµÑÐ»Ð°Ð²
name: ÐÐµÑÐµÑÐ½Ð¸Ð½Ð°, ÐÐ»ÐµÐºÑÐ°Ð½Ð´ÑÐ°
name: ÐÐµÑÐºÐ¾Ð², ÐÑÑÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð¼Ð¾Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ°
Ð¼Ð¾Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ñ

description: Ð¡Ð¿ÐµÑÐ¸Ð°Ð»ÑÐ½ÑÐ¹ ÑÑÐµÐ±Ð½Ð¸Ðº Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½ Ð´Ð»Ñ ÑÑÐµÐ±Ð½Ð¾-Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ Ð´Ð¾Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½ÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼ Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð¹ Ð¿ÐµÑÐµÐ¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ð¸ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸ÑÐ¼ Â«ÐÐ¾Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ° Ð¸ÑÐ¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¾ÑÐ³Ð°Ð½Ð¾Ð² Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð²Ð»Ð°ÑÑÐ¸Â» Ð¸ Â«ÐÐ¾Ð¸Ð½ÑÐºÐ¸Ð¹ ÑÑÐµÑ Ð¸ Ð±ÑÐ¾Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð³ÑÐ°Ð¶Ð´Ð°Ð½, Ð¿ÑÐµÐ±ÑÐ²Ð°ÑÑÐ¸Ñ Ð² Ð·Ð°Ð¿Ð°ÑÐµÂ». ÐÐ¾Ð´ÑÐ¾Ð±Ð½Ð¾ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÑÑÑÑ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð¸ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐµÐ³Ð¾ Ð·Ð°ÐºÐ¾Ð½Ð¾Ð´Ð°ÑÐµÐ»ÑÑÑÐ²Ð° Ð¸ Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½ÑÑ Ð¿ÑÐ°Ð²Ð¾Ð²ÑÑ Ð°ÐºÑÐ¾Ð² Ð² Ð¾Ð±Ð»Ð°ÑÑÐ¸ Ð¼Ð¾Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ð¸ Ð¼Ð¾Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸. Ð£ÑÐµÐ±Ð½Ð¸Ðº ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½ Ð¿Ð¾ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°Ð¼ Ð¾ÑÐºÑÑÑÐ¾Ð¹ Ð¿ÐµÑÐ°ÑÐ¸, Ð² ÑÐ¾Ð¼ ÑÐ¸ÑÐ»Ðµ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ Ð¿ÑÐ±Ð»Ð¸ÐºÐ°ÑÐ¸Ð¹ Ð°Ð²ÑÐ¾ÑÐ¾Ð² ÐÐ°Ð¼ÑÑÐ°Ð½ÑÐºÐ¾Ð³Ð¾ Ð.Ð., ÐÑÑÐµÑÐµÐ½ÐºÐ¾ Ð¡.Ð., ÐÐµÑÐµÐ²Ð¾ÑÐ¸ÐºÐ¾Ð²Ð° Ð.Ð¯. Ð¸ Ð´Ñ.
СТРУКТУРА СОБСТВЕННОСТИ И РЕШЕНИЕ ЗАДАЧ СОЦИАЛЬНОГО РАЗВИТИЯ
Creators: name: ПЛОТНИКОВ В.А.
Publisher: name: Теория и практика сервиса: экономика, социальная сфера, технологии
Year: 2020
Subjects: ЧАСТНАЯ СОБСТВЕННОСТЬ
СТРУКТУРА СОБСТВЕННОСТИ
СОЦИАЛИЗАЦИЯ
СОЦИАЛЬНОЕ РАЗВИТИЕ
ШЕРИНГОВАЯ ЭКОНОМИКА
СМЕШАННАЯ ЭКОНОМИКА
СОЦИАЛЬНАЯ ЭФФЕКТИВНОСТЬ
PRIVATE PROPERTY
OWNERSHIP STRUCTURE
SOCIALIZATION
SOCIAL DEVELOPMENT
SHARING ECONOMY
MIXED ECONOMY
SOCIAL EFFICIENCY

description: В статье проведен анализ влияния частной собственности на эффективность экономки, в результате чего обоснован вывод, что в современных условиях это влияние не является определяющим. Технологическое и институционально развитие привели к тому, что структура собственности не является определяющим фактором эффективности не только экономики в целом, но и ее рыночной модели (с учетом смешанного характера современных экономик). В этой связи, ориентация на развитие конкуренции путем «ухода» государства из экономики, по мнению автора, может не только не способствовать росту экономической эффективности, но и прямо препятствовать решению задач социального развития. Это требует пересмотра теоретических основ государственной политики, реализуемой в этой области.
Witten-Nester Energy in Topologically Massive Gravity
Creators: name: Sezgin, Ergin
name: Tanii, Yoshiaki
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We formulate topologically massive supergravity with cosmological constant in the first order formalism, and construct the Noether supercurrent and superpotential associated with its local supersymmetry. Using these results, we construct in ordinary topologically massive gravity the Witten-Nester integral for conserved charges containing spinors which satisfy a generalized version of Witten equation on the initial value surface. We show that the Witten-Nester charge, represented as an integral over the boundary of the initial value surface produces the Abbott-Deser-Tekin energy for asymptotically anti de Sitter spacetimes. We consider all values of the Chern-Simons coupling constant, including the critical value known as the chiral point, and study the cases of standard Brown-Henneaux boundary conditions, as well as their weaker version that allow a slower fall-off. Studying the Witten-Nester energy as a bulk integral over the initial value surface instead, we find a bound on the energy, and through it the sufficient condition for the positivity of the energy. In particular, we find that spacetimes of Petrov type N that admit globally well defined solutions of the generalized Witten equation have positive energy.
description: 43 pages
Three Dimensional Superconductivity in FeSe with Tczero Up to 10.9 K Induced by Internal Strain
Creators: name: Ge, Junyi
name: Cao, Shixun
name: Yuan, Shujuan
name: Kang, Baojuan
name: Zhang, Jincang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Polycrystalline sample FeSe was synthesized by a self-flux solution method which shows a zero resistance temperature up to 10.9 K and a Tconset (90% \rhon, \rhon: normal state resistivity) up to 13.3 K. The decrease of superconducting transition temperature by heat treatment indicates that internal crystallographic strain which plays the same effect as external pressure is the origin of its high Tc. The fluctuation conductivity was studied which could be well described by 3D Aslamazov-Larkin (AL) power law. The estimated value of coherence length \xic=9.2 Åis larger than the distance between conducting layers (~6.0 Å), indicating the three-dimensional nature of superconductivity in this compound.
description: 5 figures
A New Method for Knowledge Representation in Expert System's (XMLKR)
Creators: name: Bahrami, Mehdi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Knowledge representation it is an essential section of a Expert Systems, Because in this section we have a framework to establish an expert system then we can modeling and use by this to design an expert system. Many method it is exist for knowledge representation but each method have problems, in this paper we introduce a new method of object oriented by XML language as XMLKR to knowledge representation, and we want to discuss advantage and disadvantage of this method.
description: IEEE Procceding 2008
New Lower Limits on the Lifetime of Heavy Neutrino Radiative Decay
Creators: name: Cecchini, S.
name: Centomo, D.
name: Giacomelli, G.
name: Giacomelli, R.
name: Giorgini, M.
name: Patrizii, L.
name: Popa, V.
name: Serbanuut, C. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The data collected during the 2006 total solar eclipse are analyzed in the search for signals produced by a hypothetical radiative decay of massive neutrinos. In the absence of the expected light pattern, we set lower limits for the massive neutrino components proper lifetime. The reached sensitivity indicates thet these are the best limits obtainable with this method.
description: 15 pages, 9 figures
Erschliessung von Aufsatznachweisen im Multiplen Linksystem von Contents-Linking
Creators: name: Hehl, Hans
Publisher: name: Zenodo
Year: 2021
Subjects: Literature Managenent System, Journal Articles, Subjects, Linking System

description: Über das Multiple Linksystem von Contents-Linking können Tausende von Aufsatznachweisen importiert und automatisch sachlich ausgewertet werden..
title: Influence of CO2 degassing on the microbial community in a dry mofette field in Hartoušov, Czech Republic (Western Eger Rift)
Creators: name: Liu, Qi
name: Kämpf, Horst
name: Bussert, Robert
name: Krauze, Patryk
name: Horn, Fabian
name: Nickschick, Tobias
name: Plessen, Birgit
name: Wagner, Dirk
name: Alawi, Mashal
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 570 Biowissenschaften; Biologie

description: The Cheb Basin (CZ) is a shallow Neogene intracontinental basin filled with fluvial and lacustrine sediments that is located in the western part of the Eger Rift. The basin is situated in a seismically active area and is characterized by diffuse degassing of mantle-derived CO2 in mofette fields. The Hartousov mofette field shows a daily CO2 flux of 23-97 tons of CO2 released over an area of 0.35 km(2) and a soil gas concentration of up to 100% CO2. The present study aims to explore the geo-bio interactions provoked by the influence of elevated CO2 concentrations on the geochemistry and microbial community of soils and sediments. To sample the strata, two 3-m cores were recovered. One core stems from the center of the degassing structure, whereas the other core was taken 8 m from the ENE and served as an undisturbed reference site. The sites were compared regarding their geochemical features, microbial abundances, and microbial community structures. The mofette site is characterized by a low pH and high TOC/sulfate contents. Striking differences in the microbial community highlight the substantial impact of elevated CO2 concentrations and their associated side effects on microbial processes. The abundance of microbes did not show a typical decrease with depth, indicating that the uprising CO2-rich fluid provides sufficient substrate for chemolithoautotrophic anaerobic microorganisms. Illumine MiSeq sequencing of the 16S rRNA genes and multivariate statistics reveals that the pH strongly influences microbial composition and explains around 38.7% of the variance at the mofette site and 22.4% of the variance between the mofette site and the undisturbed reference site. Accordingly, acidophilic microorganisms (e.g., OTUs assigned to Acidobacteriaceae and Acidithiobacillus) displayed a much higher relative abundance at the mofette site than at the reference site. The microbial community at the mofette site is characterized by a high relative abundance of methanogens and taxa involved in sulfur cycling. The present study provides intriguing insights into microbial life and geo-bio interactions in an active seismic region dominated by emanating mantle-derived CO2-rich fluids, and thereby builds the basis for further studies, e.g., focusing on the functional repertoire of the communities. However, it remains open if the observed patterns can be generalized for different time-points or sites.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1100
A census of AM CVn stars: three new candidates and one confirmed 48.3-minute binary
Creators: name: Rau, Arne
name: Roelofs, Gijs H. A.
name: Groot, Paul J.
name: Marsh, Tom R.
name: Nelemans, Gijs
name: Steeghs, Danny
name: Kasliwal, Mansi M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present three new candidate AM CVn binaries, plus one confirmed new system, from a spectroscopic survey of color-selected objects from the Sloan Digital Sky Survey. All four systems were found from their helium emission lines in low-resolution spectra taken on the Hale telescope at Palomar, and the Nordic Optical Telescope and the William Herschel Telescope on La Palma. The ultra-compact binary nature of SDSS J090221.35+381941.9 was confirmed using phase-resolved spectroscopy at the Keck-I telescope. From the characteristic radial velocity `S-wave' observed in the helium emission lines we measure an orbital period of 48.31 +/- 0.08 min. The continuum emission can be described with a blackbody or a helium white dwarf atmosphere of T_eff ~ 15,000K, in agreement with theoretical cooling models for relatively massive accretors and/or donors. The absence in the spectrum of broad helium absorption lines from the accreting white dwarf suggests that the accreting white dwarf cannot be much hotter than 15,000K, or that an additional component such as the accretion disk contributes substantially to the optical flux. Two of the candidate systems, SDSS J152509.57+360054.5 and SDSS J172102.48+273301.2, do show helium absorption in the blue part of their spectra in addition to the characteristic helium emission lines. This, in combination with the high effective temperatures of ~18,000K and ~16,000K suggests both two be at orbital periods below ~40min. The third candidate, SDSS J164228.06+193410.0, exhibits remarkably strong helium emission on top of a relatively cool (T_eff~12,000K) continuum, indicating an orbital period above ~50min.
description: 8 pages, 8 figures, submitted to ApJ
A novel method for the absolute fluorescence yield measurement by AIRFLY
Creators: name: AIRFLY Collaboration
name: Ave, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: One of the goals of the AIRFLY (AIR FLuorescence Yield) experiment is to measure the absolute fluorescence yield induced by electrons in air to better than 10% precision. We introduce a new technique for measurement of the absolute fluorescence yield of the 337 nm line that has the advantage of reducing the systematic uncertainty due to the detector calibration. The principle is to compare the measured fluorescence yield to a well known process - the Cerenkov emission. Preliminary measurements taken in the BFT (Beam Test Facility) in Frascati, Italy with 350 MeV electrons are presented. Beam tests in the Argonne Wakefield Accelerator at the Argonne National Laboratory, USA with 14 MeV electrons have also shown that this technique can be applied at lower energies.
description: presented at the 5th Fluorescence Workshop, El Escorial - Madrid, Spain, 16 - 20 September 2007
Bloch Analysis of Finite Periodic Microring Chains
Creators: name: Cherchi, Matteo
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We apply Bloch analysis to the study of finite periodic cascading of microring resonators. Diagonalization of the standard transfer matrix approach not only allows to find an exact analytic expression for transmission and reflection, but also to derive a closed form solution for the field in every point of the structure. To give more physical insight we analyze the main features of the transmission resonances in a finite chain and we give some hints for their experimental verification
description: 19 pages, 4 figures