cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Scale-dependent effects of plant diversity drivers across different grassland habitats in Ukraine
Creators: name: Buzhdygan, Oksana
name: Baldauf, Selina
name: Borovyk, Dariia
name: Vynokurov, Denys
name: Ladouceur, Emma
name: Chusova, Olha
name: Iemelianova, Svitlana
name: Budzhak, Vasyl
name: Tietjen, Britt-Kristien
name: Bezrodnova, Olga
name: Bezsmertna, Olesya
name: Chorney, Illya
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2025
Subjects: subject: 580

description: Understanding the factors governing grassland biodiversity across different spatial scales is crucial for effective conservation and management. However, most studies focus on single grain sizes, leaving the scale-dependent mechanisms of biodiversity drivers unclear. We investigated how climate, soil properties, abiotic disturbance, and land use influence plant diversity across two fine spatial scales in various grassland types in Ukraine. Using spatially explicit data on plant species presence and their cover, collected at smaller (10 m2) and larger (100 m2) grain sizes, we assessed spatial β-diversity—the variability of biodiversity between scales. We analyzed whether the effects of ecological drivers on β-diversity are mediated by changes in species evenness, density (total cover), and intraspecific aggregation in plant community. In our study, the most influential factors of local plant diversity at both grain sizes were climate variables, followed by soil humus content, litter cover, and soil pH. Soil and litter effects were primarily driven by the response of locally rare species, while climate and grazing effects were driven by locally common species. The strength of most of these effects varied between spatial scales, affecting β-diversity. Soil properties influenced β-diversity through changes in total plant community cover, while the effects of climate and litter operated via changes in species evenness and aggregation. Our findings highlight that biodiversity responses to climate, soil factors, and litter depend on the size of the sampled area and reveal the role of total plant cover, evenness, and aggregation in driving fine-scale β-diversity in grasslands across different habitat types.
Première étape dans le développement et standardisation des reproductions asexuées et dans l’élevage de quatre espèces de coraux Acropora sp, Montipora sp, Lobophillia sp et Acanthastrea sp en conditions de laboratoire à Longueuil. Indice de sante aquanov et test premier test de l'indice de sante aquanov et la détermination du meilleur système d'éclairage pour deux espèces de coraux.
Creators: name: Molano, Mauricio
Publisher: name: figshare
Year: 2018
Subjects: Marine Biology

description: Development of the health index of AQUANOV corals and the first testing of the Index during the determination of the best lighting system for two coral species.With the purpose of developing a methodology to evaluate the health status of corals, the biological visual indicators of corals that may be rapidly evaluated were determined, which could indicate the corals' physiological status. The indicators chosen were: 1. Polyps' expansion; 2. Placement of the coral; 3. Growth band.Each indicator was conferred a value from 1 to 3. The corals' health status was determined by the addition of these three indicators at a determined time. We named this index the "Aquanov Index" (IA). The reference values obtained for health were: from 1-3 poor health, 4-5 regular health, 6-7 regular good, 8-9 good health.In a second stage of this study, 18 mini colonies of 2 species, Acropora sp and Montipora sp, were submitted to three different light sources during 30 days, with the purpose of evaluating their answer. The Aquanov Index (IA) was used as an evaluation tool. The assessed lights were metal halide, neon lights and LED lights. The best results were obtained with metal halide lights, with which the corals obtained an average IA of 8.3 with a standard deviation of+/- 1.2 for Acropora sp and an average value of 8.3 (+/- 0.6) for Montipora sp. The second best results were obtained with neon lights, with which Acropora sp obtained an average IA value of 7.7 (+/- 0.6), and Montipora sp, 7.3 (+/- 0.6). In both cases, the mortality was 0%.On the contrary, LED lights in this initial s􀁗age generated high mortalities, 66% for Acropora sp and 33% for Montipora sp, from the day 15. Therefore, it was decided to cancel the study with these lights.The Aquanov Index was a very helpful tool to evaluate the corals' health status.Further studies with LED lights are required, given that the obtained results were unexpected.
Performance optimisation of new basket-shaped TiO2 photoelectrodes in a photocatalytic fuel cell utilising the response surface method: dye elimination and energy generation
Creators: name: Pouramini, Zahra
name: Ayati, Bita
name: Babapoor, Aziz
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Physical Sciences not elsewhere classified
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Response Surface Methodology (RSM) simplifies fuel cell design and offers possibilities for process improvement, operating condition optimisation, and performance improvements. By identify the best design parameters, RSM helps create fuel cell systems that are dependable, economical, and efficient. Although RSM is widely applied in many domains, more studies are still needed evaluating photocatalytic fuel cell performance in dye removal and optimising the conditions of reactions. Using RSM (central composite design), the system's ability to remove Methyl Orange (MO) and produce energy was enhanced in this study. TiO2/Ti and CuO/Cu are employed in this system as the photoelectrodes. Effective optimised parameters on contaminant removal and energy production, including dye concentration, electrolyte concentration, and pH, were achieved as 23.31 mg/L, 0.1 M, and pH = 3, respectively. 71.26% MO dye was removed, and 0.63 V, 0.19 mA/cm2, and 0.037 mW/cm2 values were recorded for the open-circuit voltage (VOC), short-circuit current (JSC), and maximum power density (PMAX), respectively, under optimal conditions, which was very close to the experimental values. The analysis of variances for dye removal and VOC, JSC, PMAX, correlation coefficient, and adjusted correlation coefficient for the four mentioned responses indicated a strong correlation between the predicted and experimental data, confirming the model's accuracy.
Ferromagnetic to paramagnetic transition in spherical spin glass
Creators: name: Baik, Jinho
name: Lee, Ji Oon
name: Wu, Hao
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider the spherical spin glass model defined by a combination of the pure 2-spin spherical Sherrington-Kirkpatrick Hamiltonian and the ferromagnetic Curie-Weiss Hamiltonian. In the large system limit, there is a two-dimensional phase diagram with respect to the temperature and the coupling strength. The phase diagram is divided into three regimes; ferromagnetic, paramagnetic, and spin glass regimes. The fluctuations of the free energy are known in each regime. In this paper, we study the transition between the ferromagnetic regime and the paramagnetic regime in a critical scale.
description: 41pages, 2 figures
Quantum fields in the background spacetime of a loop quantum gravity black hole
Creators: name: Moulin, Flora
name: Martineau, Killian
name: Grain, Julien
name: Barrau, Aurélien
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The description of black holes in loop quantum gravity is a hard and tricky task. In this article, we focus on a minisuperspace approach based on a polymerization procedure. We consider the resulting effective metric and study the propagation of quantum fields in this background. The cross sections for scalar particles and fermions are explicitly calculated. The Teukolsky-Chandrasekhar procedure used to derived the fermionic radial equation of motion for usual spacetimes is entirely generalized to a much larger class. The resulting radial equation can be used in quite a lot of other contexts.
Fixed point actions and on-shell tree-level Symanzik improvement
Creators: name: Papa, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In this paper it is argued that the properties of the fixed point action of a renormalization group transformation can be used to implement the on-shell tree-level Symanzik improvement of lattice actions to any given order in the expansion in the lattice spacing, in a way which does not involve any perturbative calculations. In particular, a well-known technique for the lowest order improvement of SU(N) lattice gauge theories is revisited from the point of view of fixed point actions, which allows to shed light on some subtle points.
description: 14 pages, LaTeX, 1 TeX figure
Kinetic theory for a simple modeling of phase transition: Dynamics out of local equilibrium
Creators: name: Takata, Shigeru
name: Matsumoto, Takuya
name: Hirahara, Anna
name: Hattori, Masanari
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: 74A25, 82C40, 82C26

description: This is a continuation of the previous work (Takata & Noguchi, J. Stat. Phys., 2018) that introduces the presumably simplest model of kinetic theory for phase transition. Here, main concern is to clarify the stability of uniform equilibrium states in the kinetic regime, rather than that in the continuum limit. It is found by the linear stability analysis that the linear neutral curve is invariant with respect to the Knudsen number, though the transition process is dependent on the Knudsen number. In addition, numerical computations of the (nonlinear) kinetic model are performed to investigate the transition processes in detail. Numerical results show that (unexpected) incomplete transitions may happen as well as clear phase transitions.
description: 21 pages, 7 figures
Majoron Dark Matter and Constraints on the Majoron-Neutrino Coupling
Creators: name: Brune, Tim
name: Päs, Heinrich
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We revisit a singlet Majoron model in which neutrino masses arise from the spontaneous violation of lepton number. If the Majoron obtains a mass of order MeV, it can play the role of dark matter. We discuss constraints on the couplings of the massive Majoron with masses of order MeV to neutrinos from supernova data. In the dense supernova core, Majoron-emitting neutrino annihilations are allowed and can change the signal of a supernova. Based on the observation of SN1987A, we exclude a large range of couplings from the luminosity and the deleptonization arguments, taking the effect of the background medium into account. If the Majoron mass does not exceed the Q-value of the experiment, the neutrino-Majoron couplings allow for neutrinoless double beta decay with Majoron emission. We derive constraints on the couplings for a Majoron mass of order MeV based on the phase space suppression and the diminishing signal-to-background ratio due to the Majoron mass. The combination of constraints from astrophysics and laboratory experiments excludes a large range of neutrino-Majoron couplings in the mass range of intererest for Majoron dark matter.
description: 22 pages, 7 figures, matches published version in PRD
Evaluation sur la capacité de régénération de différents parti du corps du corail mou Sarcophytum sp avec l' objectif de faire la reproduction par fragmentation et l' élevaged Item
Creators: name: Molano, Mauricio
Publisher: name: figshare
Year: 2018
Subjects: Marine Biology

description: In previous years, the coral aquaculture activities of the group Aquanov were focused on the reproduction and growth of hard corals (Scleractlniaires). In 2016, Aquanov started executing activities for the farming and growth of soft corals (corals that do not form coral rock), as it is very easy" to maintain in captivity, less demanding in terms of water quality and has an interesting demand in Canada.The species chosen for this research is the Sarcophytum sp, a coral in the shape of a fungus that presents large polyps (of approximately 3 mm).The purpose of this research was to evaluate the regenerative capacity (to form new colonies) from different parts of the body of coral Sarcophytum sp. The evaluated body parts were the edge of the disc, the center of the disc, and the core. The following were the indicators evaluated in the study: 1.Fixation time of the new rock; 2. Polyps' expansion; 3. Mortality. The experiment stage lasted 6 months.The results were the following: Fixation: On the day 15, the fixation of the fragments of the edge of the disc was of 67%; the fragments of the center of the disc, 50%; .and those of the core, 17%. On the day 60, the fixation of the fragments on the edge of the disc reached 100%, those in the center of the disc, 83%, and on the core 50%. Extension of the polyps: The maximum polyps' extension for the fragments on the edge of the disc was on day 60, with 100%; for those on the center of the disc, on day 120, with 83% and; lastly, on day 150, with 50% for those on the core.Mortality: For the fragments on the edge of the disc, the mortality was of 0%; for those on the center of the disc, 17%; and for those on the core, 50% during the 180 days of the experiment.In conclusion, the best part of the body to carry out the reproduction by fragmentation is the edge of the disc with 100% survival; a fixation of 100% on the day 30 and 100% expansion of polyps on the day 60.With these new techniques, the group Aquanov will be able to introduce a new species Sarcophytum sp in its coral aquaculture activities.
Integrable models and degenerate horizons in two-dimensional gravity
Creators: name: Cruz, J.
name: Fabbri, A.
name: Navarro, D. J.
name: Navarro-Salas, J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse an integrable model of two-dimensional gravity which can be reduced to a pair of Liouville fields in conformal gauge. Its general solution represents a pair of ``mirror'' black holes with the same temperature. The ground state is a degenerate constant dilaton configuration similar to the Nariai solution of the Schwarzschild-de Sitter case. The existence of $ϕ=const.$ solutions and their relation with the solution given by the 2D Birkhoff's theorem is then investigated in a more general context. We also point out some interesting features of the semiclassical theory of our model and the similarity with the behaviour of AdS$_2$ black holes.
description: Latex, 16 pages, 1 figure
La communication externe à l'ère de la digitalisation Cas des entreprises industrielles
Creators: name: FATHI, Hajar
Publisher: name: Zenodo
Year: 2024
Subjects: Communication digitale ; information ; entreprise industrielle ; communication des entreprises ; organisation

description: La communication en entreprise consiste à gérer deux éléments essentiels : les informations et les relations. Généralement, les formes de communication utilisée au sein de l’entreprise en interne et en externe sont soit écrites soit orales. Par contre, les canaux de transmission de l’information se sont diversifiés au fil des ans. C’est ainsi que les mutations technologiques ont ouvert la voie à l’usage de nouveaux supports digitaux particulièrement avec le développement des plates formes web et des réseaux sociaux.

Par le biais de la digitalisation, la communication verticale de l’entreprise est devenue transversale, le feedback est instantané, internationalisé. Dans ce contexte de digitalisation accrue, de mutation et développement accéléré des TIC, le comportement l’entreprise industrielle a changé au niveau communicationnel.

L’objectif de notre article est de relever les forces, les faiblesses, les opportunités et les menaces de l’usage du digital dans le processus de la communication externe des entreprises industrielles. Ainsi, nous avons opté pour la méthode d’investigation par études de cas, qui consiste à collecter de l’information variée à partir de documents, observations et entretiens auprès de quatre entreprises industrielles au Maroc.
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome V, Cart. 189 (11 H 74), 316 folios, f. 0197r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome V, Archives départementales de la Côte-d'Or, Cart. 189 (11 H 74), 316 folios, f. 0197r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome V, Archives départementales de la Côte-d'Or, Cart. 189 (11 H 74), 316 folios, f. 0197r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Oligoclonal bands and kappa free light chains : Competing parameters or complementary biomarkers?
Creators: name: Konen, Franz Felix
name: Wurster, Ulrich
name: Schwenkenbecher, Philipp
name: Gerritzen, Andreas
name: Groß, Catharina Christiane
name: Eichhorn, Peter
name: Harrer, Andrea
name: Isenmann, Stefan
name: Lewczuk, Piotr
name: Lewerenz, Jan
name: Leypoldt, Frank
name: Otto, Markus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2025
Subjects: subject: 610

description: Background: The 2024-revised McDonald criteria for multiple sclerosis (MS) proposed to incorporate cerebrospinal fluid (CSF)-specific oligoclonal bands and kappa free light chains (KFLC) as diagnostic biomarkers. While the 2017-revised criteria highlighted CSF-specific oligoclonal bands to indicate intrathecal IgG synthesis, significantly enhancing early MS diagnosis, KFLC have emerged as additional marker. Now, the question rises of whether both biomarkers serve as competing or complementary tools in MS diagnostics. Methods: In this narrative review, we extensively searched the literature on oligoclonal bands and KFLC determination in CSF and serum across neurological disorders, with a focus on MS, using the PubMed database to demonstrate the complementarity of both biomarkers. Results: Oligoclonal bands have long been a reliable marker of intrathecal IgG synthesis in MS, valued for their high diagnostic sensitivity, unique patient “fingerprints,” clonality differentiation, semi-quantitative analysis, and pre-analytic robustness. However, they present challenges in standardization, labor-intensity, method variability, examiner dependency, and limited data on non-IgG immunoglobulins. Quantitative KFLC measurement provides rapid, examiner-independent, and cost-effective assessment across all immunoglobulin classes but might have lower specificity, lacked consensus on standardized interpretation in recent years, and is not yet supported by comprehensive prospective multinational studies on its prognostic role. Conclusion: Both oligoclonal bands and KFLC have unique strengths and limitations that complement each other, potentially serving as complementary markers for evaluating intrathecal Ig synthesis in MS diagnosis. Further evidence is needed to establish the value of KFLC in MS diagnosis, thus multicenter prospective studies are being conducted to compare the diagnostic utility of both markers.
Phanera nakhonphanomensis Mackinder & R. Clark 2014, comb. nov.
Creators: name: Mackinder, Barbara A.
name: Clark, Ruth
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Phanera
Phanera nakhonphanomensis

description: Phanera nakhonphanomensis (Chatan) Mackinder & R. Clark comb. nov.
Bauhinia nakhonphanomensis Chatan, PhytoKeys 26: 1–5. 2013. doi: 10.3897/phytokeys.26.6008.
Type Thailand, Phulangka National Park, Ban Pheang District, Nakhon Phanom Province, Chatan 1337 (holotype: BK; isotype: MSUT).
DISTRIBUTION. Endemic to Thailand.
description: Published as part of Mackinder, Barbara A. & Clark, Ruth, 2014, A synopsis of the Asian and Australasian genus Phanera Lour. (Cercideae: Caesalpinioideae: Leguminosae) including 19 new combinations, pp. 49-68 in Phytotaxa 166 (1) on page 60, DOI: 10.11646/phytotaxa.166.1.3, http://zenodo.org/record/5138206
La parola, lo spazio Bellocchio e il teatro
Creators: name:  Polato, Farah; Salvatore, Rosamaria
Publisher: name: La Rivista di Engramma
Year: 2020
Subjects: la condanna
The Convinction
Sorelle Mai
Bella addormentata
Dormant Beauty
scenic space
performed word

description: The various and articulated references to the theatre in Marco Bellocchio’s films seem to express the intention to investigate the different forms and manners of the interaction between cinema and theatre. This spans from clearly manifest forms – like adaptation and quote - to more subtle ones, which question patterns, praxis and models. The article considers both of the approaches through the analysis of the mise en scène of the word and the space, which are historically recognised as the sensitive areas of the relation between cinema and theatre.
Beyond the identification of the exact mechanics relating theatre and cinema, what we can define as the “theatricality” of a film remains ambiguous it being more related to a feeling coming from the perception of a “trespassing”. It’s clear that cinema is always cinema - and theatre is always theatre- in its affirming and challenging acquired models, forms and patterns. Nevertheless, we notice that “theatrical” is an adjective that has been used to refer to the childhood of cinema, the so-called “primitive” cinema, as well as to the most rigorous expressions of some auteur cinema. At the same time, we would like to stress the generative force of the perception of this trespassing or of the presence of some atypical insert.
In the first part of the article, Rosamaria Salvatore focusses on the mise en scène of the word shaped by the filter of theatre. This becomes an act opening to processes of regeneration touching upon different plans of the human experience, from the phenomenal to the oneiric one. Here are summoned pieces and fragments of renowned dramas such as Macbeth by Shakespeare or The Seagull by Chekhov.
In the second part, Farah Polato analyses the film The Convinction (La condanna, 1991) as a theatrical space echoing the idea of theatre expressed by the pirandellian “arsenale delle apparizioni” (arsenal of apparitions). Here it is the notion of closed-space, both as a concretely limited space (corresponding to the perimeter of the stage in the theatre), or performed as ideally closed.
Grand Unification Signal from Ultra High Energy Cosmic Rays?
Creators: name: Fodor, Z.
name: Katz, S. D.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The spectrum of ultrahigh energy (above \approx 10^{9} GeV) cosmic rays is consistent with the decay of GUT scale particles. The predicted mass is m_X=10^b GeV, where b=14.6_{-1.7}^{+1.6}.
description: 4 pages, 3 figures one figure removed, one table added, conclusions essentially remained the same within errorbars
title: ADCO, Cartulaire de Fontenay, second fragment (XIIIe siècle), Cart. 201 (15 H 9), folios 47-142, f. 003r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2009
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Fontenay, second fragment (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 201 (15 H 9), folios 47-142. Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Fontenay, second fragment (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 201 (15 H 9), folios 47-142, f. 003r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Fontenay
description: Provenance: http://www.wikidata.org/entity/Q464918
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb119679755
description: Provenance: https://www.geonames.org/7874015
description: Provenance: http://www.idref.fr/027691802/id
Between Text Boundaries and Quire Boundaries: Production of Old Norse Literature in the Early Modern Period
Creators: name: Kapitan, Katarzyna Anna
Publisher: name: Zenodo
Year: 2022
Subjects: manuscripts
manuscript studies
production unit
codicological unit
structural codicology
codicology
Old Norse manuscripts
TEI-XML cataloguing of manuscripts

description: Paper delivered at the IMC Leeds 2022. 

Materiality of Manuscripts, III: The Codex
Disorder in quantum many-body systems
Creators: name: Vojta, Thomas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Impurities, defects, and other types of imperfections are ubiquitous in realistic quantum many-body systems and essentially unavoidable in solid state materials. Often, such random disorder is viewed purely negatively as it is believed to prevent interesting new quantum states of matter from forming and to smear out sharp features associated with the phase transitions between them. However, disorder is also responsible for a variety of interesting novel phenomena that do not have clean counterparts. These include Anderson localization of single particle wave functions, many-body localization in isolated many-body systems, exotic quantum critical points, and "glassy" ground state phases. This brief review focuses on two separate but related subtopics in this field. First, we review under what conditions different types of randomness affect the stability of symmetry-broken low-temperature phases in quantum many-body systems and the stability of the corresponding phase transitions. Second, we discuss the fate of quantum phase transitions that are destabilized by disorder as well as the unconventional quantum Griffiths phases that emerge in their vicinity.
description: invited review article for Annual Review of Condensed Matter Physics, 20 pages, 5 figures included
Just-So Oscillation: as Just as MSW?
Creators: name: Berezhiani, Zurab G.
name: Rossi, Anna
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The neutrino long wavelength (just-so) oscillation is reconsidered as a solution to the solar neutrino problem. In the light of the presently updated results of the four solar neutrino experiments, the data fit in the just-so scenario substantially improves and becomes almost as good as in the MSW scenario. Surprising result of our analysis is that best fit is achieved when the oscillation occurs only between two neutrino states: switching on the oscillation into third neutrino increases the $χ^2$ value. Namely, we consider the vacuum oscillation scenario in the three-neutrino system (4 parameters) and find out that the $χ^2$ minimum is always achieved in the {\it two} parameter subspace in which actually only {\it two} neutrino states oscillate. This holds in the framework of any solar model with relaxed prediction of the various neutrino fluxes. The possible theoretical implications of this observation are also discussed.
description: 9 pages, Latex, 4 figures (not included, available upon request from ROSSI@ferrara.infn.it)
Age-related impairment in Addenbrooke’s cognitive examination revised scores in patients with amyotrophic lateral sclerosis
Creators: name: Michihito Masuda
name: Watanabe, Hirohisa
name: Tanaka, Yasuhiro
name: Ohdake, Reiko
name: Ogura, Aya
name: Yokoi, Takamasa
name: Imai, Kazunori
name: Kawabata, Kazuya
name: Riku, Yuichi
name: Hara, Kazuhiro
name: Nakamura, Ryoichi
name: Atsuta, Naoki
name: Katsuno, Masahisa
name: Sobue,
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Science Policy

description: Objective: Older age is thought to be a risk factor for cognitive impairment in amyotrophic lateral sclerosis (ALS). However, very few clinical studies have investigated this relationship using sufficient numbers of healthy controls that correspond to each generation. The purpose of this study was to determine the age-related changes of Addenbrooke’s Cognitive Examination-Revised (ACE-R) score in ALS patients by comparing healthy controls of various ages. Methods: 131 ALS patients (86 males, 45 females; mean age: 64.8 ± 10.2; mean education: 12.5 ± 2.7) and 151 age-, gender-, and education-matched healthy controls were enrolled. We applied ACE-R, which could evaluate not only global cognition but five cognitive subdomains that included orientation/attention, memory, verbal fluency, language, and visuospatial ability. Results: ALS patients had significantly lower total and subdomain scores of ACE-R than healthy controls. Multiple regression analysis suggested that age at examination and age at onset had significant influence on ACE-R scores. When we divided ALS patients and healthy controls into 4 groups according to age at examination for ALS, total and each subdomain scores were significantly lower with age, particularly in the older-middle and the oldest group (66.31 years or more) of ALS compared with healthy controls. Locally weighted scatterplot smoothing analysis supported that these reductions of ACE-R total and subdomain scores in ALS patients were more accelerated by approximately 60 years as compared with healthy controls. Conclusion: ALS patients showed accelerated age-related ACE-R score reduction beyond normal ageing processes.
Standard Model Extension with Flipped Generations
Creators: name: Alvarado, Carlos
name: Aranda, Alfredo
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An extension of the Standard Model is presented that leads to the possible existence of new gauge bosons with masses in the range of a few TeV. Due to the fact that their couplings to Standard Model fermions are strongly suppressed, it is possible for them to be hidden from current searches. The model contains additional generations of fermions with quantum numbers resembling those of the Standard Model fermion generations but with a twist: their charge assignments are such that their electric charges and chiralities are flipped with respect to those of their corresponding Standard Model counterparts. This feature provides a way to obtain potential dark matter candidates and the interesting possibility for a Lepton number conserving dimension-five operator for Dirac neutrino masses. The model implications associated to electroweak precision parameters, flavor changing neutral currents, and diphoton rate contributions are briefly discussed. The general assumptions of this set up are also used to sketch a couple of variants of the model with peculiar features that could motivate further study.
description: 8 pages, 3 figures, 2 tables. Discussion on W' boson and RH neutrinos extended, references added, typos corrected, title changed. Matches published version in PLB
On the logarithmic behaviour in N=4 SYM theory
Creators: name: Bianchi, Massimo
name: Kovacs, Stefano
name: Rossi, Giancarlo
name: Stanev, Yassen S.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the logarithmic behaviour seen in perturbative and non perturbative contributions to Green functions of gauge-invariant composite operators in N=4 SYM with SU(N) gauge group can be consistently interpreted in terms of anomalous dimensions of unprotected operators in long multiplets of the superconformal group SU(2,2|4). In order to illustrate the point we analyse the short-distance behaviour of a particularly simple four-point Green function of the lowest scalar components of the N=4 supercurrent multiplet. Assuming the validity of the Operator Product Expansion, we are able to reproduce the known value of the one-loop anomalous dimension of the single-trace operators in the Konishi supermultiplet. We also show that it does not receive any non-perturbative contribution from the one-instanton sector. We briefly comment on double- and multi-trace operators and on the bearing of our results on the AdS/SCFT correspondence.
description: 18 pages, Latex
Wie hängen „Work Logics“, Vorstellungen gesellschaftlichen Zusammenhalts und politische Orientierungen zusammen? : Studienreport
Creators: name: Böge, Rozalie
name: Henkel, Helmut
name: Kumkar, Nils Christian
name: Pongratz, Serena
name: Schimank, Uwe
Publisher: name: Universität Bremen
Year: 2024
Subjects: subject: Arbeitssoziologie
subject: Qualitative Forschung
subject: Gruppendiskussionen
subject: Studie
subject: 300

description: Dieser Studienbericht beschreibt die qualitative Studie "Work Logics" die im Rahmen des Forschungszentrums Gesellschaftlicher Zusammenhalt (FGZ) an der Universität Bremen durchgeführt wurde. Das Forschungsprojekt untersuchte Zusammenhänge zwischen sog. Work Logics (Oesch 2006a; 2006b), Vorstellungen gesellschaftlichen Zusammenhalts und politischen Orientierungen. Hierfür wurden in den Jahren 2023 und 2024 insgesamt 8 Gruppendiskussionen mit 7 verschiedenen Berufsgruppen (Lehrer:innen, Pastor:innen, Servicemitarbeiterinnen, Verwaltungsangestellte, Klinikclowns, Ingenieur:innen, Unternehmer:innen) durchgeführt. In den Gruppendiskussionen stand das subjektive Erleben der gesellschaftlichen und politischen Entwicklungen der letzten Jahre im Zentrum. Exmanente Fragen thematisierten die Themenbereiche Zusammenhalt, Politik und Staatlichkeit, eigenes Handeln sowie Partei- und Politikpräferenzen, um die Orientierungsrahmen und Problemlösungsstrategien der unterschiedlichen Berufsgruppen zu rekonstruieren. Der archivierte Datensatz bietet Nachnutzungspotenziale im Bereich der Arbeitssoziologie, politischen Soziologie oder Sozialstrukturanalyse.
Biased Nanoscale Contact as Active Element for Electrically Driven Plasmonic Nanoantenna
Creators: name: Uskov, Alexander V.
name: Khurgin, Jacob B.
name: Buret, Mickael
name: Bouhelier, Alexandre
name: Smetanin, Igor V.
name: Protsenko, Igor E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Electrically-driven optical antennas can serve as compact sources of electromagnetic radiation operating at optical frequencies. In the most widely explored configurations, the radiation is generated by electrons tunneling between metallic parts of the structure when a bias voltage is applied across the tunneling gap. Rather than relying on an inherently inefficient inelastic light emission in the gap, we suggest to use a ballistic nanoconstriction as the feed element of an optical antenna supporting plasmonic modes. We discuss the underlying mechanisms responsible for the optical emission, and show that with such a nanoscale contact, one can reach quantum efficiency orders of magnitude larger than with standard light-emitting tunneling structures.
O(a) improvement of lattice QCD with two flavors of Wilson quarks
Creators: name: Jansen, Karl
name: Sommer, Rainer
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We consider O(a) improvement for two flavor lattice QCD. The improvement term in the action is computed non-perturbatively for a large range of the bare coupling. The position of the critical line and higher order lattice artifacts remaining after improvement are estimated. We also discuss the behavior of the HMC algorithm in our simulations.
description: Few entries in Table 1 corrected - no other changes
Nature of the $Ω$(2012) through its strong decays
Creators: name: Aliev, T. M.
name: Azizi, K.
name: Sarac, Y.
name: Sundu, H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We extend our previous analysis on the mass of the recently discovered $Ω(2012)$ state by investigation of its strong decays and calculation of its width employing the method of light cone QCD sum rule. Considering two possibilities for the quantum numbers of $Ω(2012)$ state, namely $1P$ orbital excitation with $J^P=\frac{3}{2}^-$ and $2S$ radial excitation with $J^P=\frac{3}{2}^+$, we obtain the strong coupling constants defining the $Ω(1P/2S)\rightarrowΞK$ decays. The results of the coupling constants are then used to calculate the decay width corresponding to each possibility. Comparison of the obtained results on the total widths in this work with the experimental value and taking into account the results of our previous mass prediction on the $Ω(2012)$ state, we conclude that this state is $1P$ orbital excitation of the ground state $Ω$ baryon, whose quantum numbers are $J^P=\frac{3}{2}^-$.
description: 8 Pages, 2 Figures and 3 Tables
M5-branes, Special Lagrangian Submanifolds and sigma-models
Creators: name: Minasian, Ruben
name: Tsimpis, Dimitrios
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study M-theory fivebranes wrapped on Special Lagrangian submanifolds ($§_n$) in Calabi-Yau three- and fourfolds. When the M5 wraps a four-cycle, the resulting theory is a two-dimensional domain wall embedded in three-dimensional bulk with four supercharges. The theory on the wall is specified in terms of the geometry of the CY manifold and the cycle $§_4$. It is chiral and anomalous, however the presence of a three-dimensional gravitational Chern-Simons terms with a coefficient that jumps when crossing the wall allows to cancel the anomaly by inflow. Kahler manifolds of special type, where the potential depends only on the real part of the complex coordinate, are shown to emerge as the target spaces of two-dimensional sigma-models when the M5 is wrapped on $§_3 \times S^1$, thus providing a physical realization of some recent symplectic construction by Hitchin.
description: 17 pages, harvmac; published version
Theory and numerical simulation of heat transport in multi-component systems
Creators: name: Bertossa, Riccardo
name: Grasselli, Federico
name: Ercole, Loris
name: Baroni, Stefano
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The thermal conductivity of classical multi-component fluids is seemingly affected by the intrinsic arbitrariness in the definition of the atomic energies and it is ill-conditioned numerically, when evaluated from the Green-Kubo theory of linear response. To cope with these two problems we introduce two new concepts: a convective invariance principle for transport coefficients, in the first case, and multi-variate cepstral analysis, in the second. A combination of these two concepts allows one to substantially reduce the noise affecting the estimate of the thermal conductivity from equilibrium molecular dynamics, even for one-component systems.
description: 9 pages, 5 figures; revised text; supplemental material included
Identification of EGFR in pearl oyster (Pinctada fucata martensii) and correlation analysis of its expression and growth traits
Creators: name: Wang, Qingheng
name: Hao, Ruijuan
name: Zhao, Xiaoxia
name: Huang, Ronglian
name: Zheng, Zhe
name: Deng, Yuewen
name: Chen, Weiyao
name: Du, Xiaodong
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Marine pearl production is directly influenced by the growth speed of Pinctada fucata martensii. However, the slow growth rate of this organism remains the main challenge in aquaculture production. Epidermal growth factor receptor (EGFR), an important receptor of tyrosine kinases in animals, plays versatile functions in development, growth and tissue regeneration. In this study, we described the characteristic and function of an EGFR gene identified from P. f. martensii (PmEGFR). PmEGFR possesses a typical EGFR structure and is expressed in all studied tissues, with the highest expression level in adductor muscle. PmEGFR expression level is significantly higher in the fast-growing group than that in the slow-growing one. Correlation analysis represents that shell height and shell weight show positive correlation with PmEGFR expression (p < 0.05), and total weight and tissue weight exhibit positive correlation with it (p < 0.01). This study indicates that PmEGFR is a valuable functional gene associated with growth traits. PmEGFR expression level is positively correlative with growth traits of P. f. martensii, which indicates PmEGFR is a valuable functional gene associated with growth traits.
Line emission from an accretion disk around black hole: effects of the disk structure
Creators: name: Pariev, Vladimir I.
name: Bromley, Benjamin C.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The observed iron K-alpha fluorescence lines in Seyfert galaxies provide strong evidence for an accretion disk near a supermassive black hole as a source of the line emission. Previous studies of line emission have considered only geometrically thin disks, where the gas moves along geodesics in the equatorial plane of a black hole. Here we extend this work to include effects on line profiles from finite disk thickness, radial accretion flow and turbulence. We adopt the Novikov-Thorne solution, and find that within this framework, turbulent broadening is the most significant effect. The most prominent changes in the skewed, double-horned line profiles is a substantial reduction in the maximum flux at both red and blue peaks. We show that at the present level of signal-to-noise in X-ray spectra, proper treatment of the actual structure of the accretion disk can change estimates of the inclination angle of the disk. Thus these effects will be important for future detailed modeling of high quality observational data.
description: 4 pages; LaTeX; 1 figure included; uses epsfig package; to appear in the Proceedings of the 8th Annual October Astrophysics Conference in Maryland (Oct, 1997)
title: La_Passion_de_Valenciennes-1547-Costumes-fiche-de-mesures
Creators: name: de Valenciennes-1547, La Passion
name: Collectif
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Costumes, fiches de mesures pour le film La Passion de Valenciennes 1547 (https://www.passion-de-valenciennes-1547.fr/ )
description: Relation: https://www.passion-de-valenciennes-1547.fr/
Heavy Quark Spectroscopy and Matrix Elements: A Lattice Study using the Static Approximation
Creators: name: Ewing, A. K.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present results of a lattice analysis of the $B$ parameter, $B_B$, the decay constant $f_B$, and several mass splittings using the static approximation. Results were obtained for 60 quenched gauge configurations computed at $β=6.2$ on a lattice size of $24^3\times48$. Light quark propagators were calculated using the $O(a)$-improved Sheikholeslami-Wohlert action. We find $\Bbstat(m_b) = 0.69\er{3}{4} {\rm(stat)}\er{2}{1} {\rm(syst)}$, corresponding to $\Bbstat = 1.02\er{5}{6}\er{3}{2}$, and $\fbstat = 266\err{18}{20}\err{28}{27} \mev$, $f_{B_s}^2 B_{B_s}/f_B^2 B_B = 1.34\er{9}{8}\er{5}{3}$, where a variational fitting technique was used to extract $\fbstat$. For the mass splittings we obtain $M_{B_s}-M_{B_d} = 87\err{15}{12}\err{6}{12} \mev$, $M_{Λ_b}-M_{B_d} = 420\errr{100}{90}\err{30}{30} \mev$ and $M_{B^*}^2-M_B^2 = 0.281\err{15}{16}\err{40}{37} \gev^2$. We compare different smearing techniques intended to improve the signal/noise ratio. From a detailed assessment of systematic effects we conclude that the main systematic uncertainties are associated with the renormalisation constants relating a lattice matrix element to its continuum counterpart. The dependence of our findings on lattice artefacts is to be investigated in the future.
description: 40 pages, uuencoded compressed tar file, containing one LaTeX file and 14 postscript files (to be included with epsf). Minor change in the value of the B parameter. Contains corrected value for the B*-B mass splitting. Version accepted for publication in Phys. Rev. D
Fermion zero-modes on brane-worlds
Creators: name: Randjbar-Daemi, Seif
name: Shaposhnikov, Mikhail
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study localization of bulk fermions on a brane with inclusion of Yang-Mills and scalar backgrounds in higher dimensions and give the conditions under which localized chiral fermions can be obtained.
description: Latex, 5 pages. A factor "2" mistake that propagated through a number of equations is corrected. Conclusions unchanged