cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the Smarr formula for rotating dyonic black holes
Creators: name: Clément, Gérard
name: Gal'tsov, Dmitri
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We revisit the derivation by Tomimatsu of the generalized Komar integrals giving the mass and angular momentum of rotating Einstein-Maxwell black holes. We show that, contrary to Tomimatsu's claim, the usual Smarr formula relating the horizon mass and angular momentum still holds in the presence of both electric and magnetic charges. The simplest case is that of dyonic Kerr-Newman black holes, for which we recover the modified Smarr formula relating the asymptotic mass and angular momentum, the difference between asymptotic and horizon masses being equal to the sum of the two Dirac string masses. Our results apply in particular to the case of dyonic dihole solutions which have been investigated recently.
description: Two formulas corrected: 1) the second equation in (3.2), 2) the right hand side of the equation in line after (3.7)
Entanglement and correlations in the continuous multi-scale entanglement renormalization ansatz
Creators: name: Franco-Rubio, Adrián
name: Vidal, Guifre
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the entanglement structure of the continuous multi-scale entanglement renormalization ansatz (cMERA) [Haegeman et al., Phys. Rev. Lett., 110, 100402 (2013)] for ground states of quantum field theories (QFTs). The cMERA, proposed as an extension to QFTs of the lattice MERA, is defined directly in the continuum but is nevertheless naturally equipped with a short-distance scale $1/Λ$ that acts as a UV regulator for quantum fluctuations. We consider the simplified setting of Gaussian cMERA for free QFTs, where explicit calculations can be performed. For relativistic free massless bosonic and fermionic QFTs in both 1+1 and 2+1 spacetime dimensions, we show that the cMERA state indeed displays no UV divergences in two-point correlation functions or entanglement entropy, in sharp contrast with the exact ground states.
description: 28 pages, 20 figures, 4 appendices. Improved with referee's comments
This Far, No Further: Introducing Virtual Borders to Mobile Robots Using a Laser Pointer
Creators: name: Sprute, Dennis
name: Tönnies, Klaus
name: König, Matthias
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We address the problem of controlling the workspace of a 3-DoF mobile robot. In a human-robot shared space, robots should navigate in a human-acceptable way according to the users' demands. For this purpose, we employ virtual borders, that are non-physical borders, to allow a user the restriction of the robot's workspace. To this end, we propose an interaction method based on a laser pointer to intuitively define virtual borders. This interaction method uses a previously developed framework based on robot guidance to change the robot's navigational behavior. Furthermore, we extend this framework to increase the flexibility by considering different types of virtual borders, i.e. polygons and curves separating an area. We evaluated our method with 15 non-expert users concerning correctness, accuracy and teaching time. The experimental results revealed a high accuracy and linear teaching time with respect to the border length while correctly incorporating the borders into the robot's navigational map. Finally, our user study showed that non-expert users can employ our interaction method.
description: Accepted at 2019 Third IEEE International Conference on Robotic Computing (IRC), supplementary video: https://youtu.be/lKsGp8xtyIc
Thysanophora penicillioides W. B. Kendr., Can. J. Bot.
Creators: name: Tibell, Sanja
name: Tibell, Leif
name: Pang, Ka-Lai
name: Jones, E. B. Gareth
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Eurotiomycetes
Eurotiales
Aspergillaceae
Thysanophora
Thysanophora penicillioides

description: 70. Thysanophora penicillioides (Roum.) W.B. Kendr., Can. J. Bot. 39: 820 (1961)
 Substrate and distribution: Marine wood. Södermanland.
 Notes: Reported by Henningsson (1974). Identified by CBS.
description: Published as part of Tibell, Sanja, Tibell, Leif, Pang, Ka-Lai & Jones, E. B. Gareth, 2020, A conspectus of the filamentous marine fungi of Sweden, pp. 141-153 in Botanica Marina (Warsaw, Poland) (Warsaw, Poland) 63 (2) on page 150, DOI: 10.1515/bot-2018-0114, http://zenodo.org/record/11360145
Lifting tropical bitangents
Creators: name: Len, Yoav
name: Markwig, Hannah
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We study lifts of tropical bitangents to the tropicalization of a given complex algebraic curve together with their lifting multiplicities. Using this characterization, we show that generically all the seven bitangents of a smooth tropical plane quartic lift in sets of four to algebraic bitangents. We do this constructively, i.e. we give solutions for the initial terms of the coefficients of the bitangent lines. This is a step towards a tropical proof that a general smooth quartic admits 28 bitangent lines. The methods are also appropriate to count real bitangents, however the conditions to determine whether a tropical bitangent has real lifts are not purely combinatorial.
description: 35 pages, 24 figures, 1 table. Minor changes. Accepted for publication in Journal of Symbolic Computation
LETTERATURA E SEMPLIFICAZIONE. IL PROBLEMA DEL MALE
Creators: name: Menzio, Pino
Publisher: name: RiCOGNIZIONI
Year: 2017

description: Literature provides a specific space for complex reflection, where the events of life and the world are transferred from mere factual reality to a hermeneutical reality. This cognitive shift, basically rejected by the more naïve versions of philosophical realism, allows for a deeper understanding and interpretation of these occurrences. This is particularly evident with the experience of evil, that cannot be confined to a purely empirical dimension.
description: RiCOGNIZIONI, V. 4 N. 8 (2017)
Fissistiganoids A and B: two new flavonoids from the Fissistigma tungfangense
Creators: name: Zhong, Wan-Lin
name: Zhou, Xue-Ming
name: Yi, Ji-Ling
name: Song, Xin-Ming
name: Zhang, Bin
name: Yang, Jing-Yu
name: Chen, Guang-Ying
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Cell Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Two new flavanoids fissistiganoids A and B (1 and 2), together with two known pterocarpans derivatives (3 and 4), were isolated from the stems of Fissistigma tungfangense. The structures of these compounds were elucidated using comprehensive spectroscopic methods. The absolute configurations of fissistiganoids A and B (1 and 2) were determined by comparing their ECD spectra with quantum-mechanics ECD calculations. The inhibitory activities of all compounds against three cancer cell lines HeLa, MCF-7 and A549 were evaluated. Compounds 1–4 showed moderate inhibitory effects on HeLa, MCF-7 and A549 cells with IC50 values ranging from 12.5 to 42.3 μM.
title: 03_0352
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
INTERAZIONE NATIVO E NON NATIVO DURANTE UN CORSO DI SCRITTURA ACCADEMICA IN ITALIANO LS: RUOLO E FUNZIONI DEL CODE-SWITCHING
Creators: name: Ferroni, Roberta
name: Birello, Marilisa
Publisher: name: RiCOGNIZIONI
Year: 2017

description: The article analyzes the use of code-switching for interaction management between an Italian native language teacher and students whose native language is Brazilian Portuguese and, in some cases, Italian, during a Cycle of seminars aimed at the elaboration of a scientific article in Italian foreign language. From the analysis it emerges that, since it is a linguistic context between bilingualism and exolingualism, the use of code-switching is sporadic, when it is present it triggers the activation of sequences of "natural pedagogy" directed to the one who holds a greater linguistic competence to fill lexical and stylistic gaps that the writing phase favors. The occurrence of a code other than Italian can also lead to problems of understanding in the presence of words of which the meaning is not known, in which case it is observed that speakers put in place a series of joint discourse modes that range from reformulations and exemplifications to translation and code-switching to Portuguese, used to solve the communicative problem. It is concluded that in the interaction of high-level students confronting academic writing, code-switching helps to create the conditions for the co-construction of declarative and procedural knowledge relating to the writing of an article, in which context the different actors (teacher and students) contribute by providing their own specific skills.
description: RiCOGNIZIONI, V. 4 N. 8 (2017)
title: ADCO, Cartulaire de Cîteaux pour les possessions d'Aloxe (XVe siècle), Cart. 182 (11 H 233), 105 folios, f. 0063
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/2017
name: Petot, Frédéric
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: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire de Cîteaux pour les possessions d'Aloxe (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 182 (11 H 233), 105 folios, f. 0063, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions d'Aloxe (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 182 (11 H 233), 105 folios, f. 0063, 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
Poly-Poisson Sigma models and their relational poly-symplectic groupoids
Creators: name: Contreras, Ivan
name: Alba, Nicolás Martínez
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The main idea of this note is to describe the integration procedure for poly-Poisson structures, that is, to find a poly-symplectic groupoid integrating a poly-Poisson structure, in terms of topological field theories, namely via the path-space construction. This will be given in terms of the poly-Poisson sigma model $(PPSM)$ and we prove that every poly-Poisson structure has a natural integration via relational poly-symplectic groupoids, extending the results in [8] and [26]. We provide familiar examples (trivial, linear, constant and symplectic) within this formulation and we give some applications of this construction regarding the classification of poly-symplectic integrations, as well as Morita equivalence of poly-Poisson manifolds.
description: 22 pages, 1 figure. Several typos and minor error fixed. A new section about applications was added
Temporal estimate measure with vertical slider bar (DYN5)
Creators: name: Kon, Maria
name: Khemlani, Sangeet
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: In all previous preregistered experiments in the DYN series, we measured the distance participants estimated that one car would be after three seconds. In this experiment (and DYN3, which was not preregistered), participants instead estimated the time that the action would end. With DYN5, we explored whether the estimated duration of an event associated with a particular tracking verb, e.g., a chase, differs from that of the other tracking verbs.
Twisted smooth Deligne cohomology
Creators: name: Grady, Daniel
name: Sati, Hisham
Publisher: name: arXiv
Year: 2017
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: Deligne cohomology can be viewed as a differential refinement of integral cohomology, hence captures both topological and geometric information. On the other hand, it can be viewed as the simplest nontrivial version of a differential cohomology theory. While more involved differential cohomology theories have been explicitly twisted, the same has not been done to Deligne cohomology, although existence is known at a general abstract level. We work out what it means to twist Deligne cohomology, by taking degree one twists of both integral cohomology and de Rham cohomology. We present the main properties of the new theory and illustrate its use with examples and applications. Given how versatile Deligne cohomology has proven to be, we believe that this explicit and utilizable treatment of its twisted version will be useful.
description: 21 pages, title modified to include smooth, references added, minor corrections and additions, published version
LA INTERACCIÓN CON EL EVALUADOR NATIVO EN LA EVALUACIÓN CERTIFICATIVA DEL ESPAÑOL COMO LENGUA EXTRANJERA
Creators: name: Ainciburu, Cecilia
name: Fernández Silva, Claudia
Publisher: name: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne
Year: 2017

description: In reference works for Teaching Spanish as a foreign language, the interaction between the language learner and the native speaker is a key to describe linguistic and pragmatic competences. This work takes as starting point the reflection on this parameter, to identify how this interaction is characterized in situations in which the student shows his oral competence. It concentrates later on the analysis of transcribed samples of certifications test in which evidences the interaction between the foreign candidate and the native test-taker.
description: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne, V. 4 N. 8 (2017)
LA COPRODUCTION DU DISCOURS DANS LES SITUATIONS DE COMMUNICATION EXOLINGUES
Creators: name: Thoerle, Britta
Publisher: name: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne
Year: 2017

description: This paper focuses on the collaborative utterance production in conversations between native and non-native speakers of French. Two types of phenomena will be analyzed: a) the collaborative treatment of “problematic” utterances of the student and b) the student’s exploitation of the native speaker’s model for the construction of his own utterance. The analysis is based on a corpus of simulated telephone conversations between German students of French and French native speakers.
description: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne, V. 4 N. 8 (2017)
ASPECTS TEXTUELS DE LA PRIÈRE : LE NOTRE PÈRE ET SES RETRADUCTIONS
Creators: name: Vitez, Primož
Publisher: name: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne
Year: 2017

description: La prière formalisée, en tant qu'unité textuelle, est originairement un acte de parole dont la codification écrite régit l'usage oral. Le statut textuel particulier est engendré par le fait que la prière n'a de sens pragmatique que lorsque son énonciation se perpétue quotidiennement dans la pratique religieuse du locuteur. Par cet aspect itératif, le sens de la prière est optimal quand le texte reste stable, c'est-à-dire intouché. Le texte du Notre Père, prière chrétienne la plus ancienne, se retrouve en 2017 dans une situation singulière, parce que l'Église catholique annonce une modification officielle de la sixième demande qui précisera le sens du verset « ne nous soumets pas à la tentation » en le reformulant par « ne nous laisse pas entrer en tentation ». Cette rectification est produite par une réflexion théologique du contenu de la demande. Le verset réinterprété apportera un changement prescrit à l'usage de la prière en imposant cette correction réfléchie du contenu sémantique à la pratique quotidienne du texte sacré.
description: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne, V. 4 N. 8 (2017)
A new coumarin isolated from the roots of Heracleum dissectum Ledeb
Creators: name: Zhang, Changlong
name: Deng, Shuangbing
name: Chen, Liya
name: Yang, Minfei
name: Wang, Bobo
name: Zhang, Xiaoqing
name: Gao, Yang
name: Zhang, Hailong
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Plant Biology
subject: FOS: Biological sciences

description: A new coumarin named (9 R, 10 R)-9, 10-dihydro-10-hydroxy-9-methoxy-bergapten (1) and 13 known compounds (2–14) were isolated from the roots of Heracleum dissectum Ledeb., in which compounds (2–13) were obtained from H. dissectum for the first time. Their structures were illuminated by HR-ESI MS, 1 D and 2 D NMR, optical rotation and comparison with literatures. All compounds were evaluated against hepatocellular carcinoma HepG2 cell lines and the results showed that candinol C (8) had moderate cytotoxic activity against HepG2 cells with IC50 value at 57.6 ± 1.1 µM.
[rec. di] Alvise ANDREOSE, "Nuove grammatiche dell’italiano. Le prospettive della linguistica contemporanea", Carocci Editore (collana Studi Superiori / 1070 – Linguistica), 2017
Creators: name: Manera, Manuela
Publisher: name: RiCOGNIZIONI
Year: 2017

description: Recensione del volume: Alvise Andreose, Nuove grammatiche dell’italiano. Le prospettive della linguistica contemporanea, Carocci Editore (collana Studi Superiori / 1070 – Linguistica), 2017
description: RiCOGNIZIONI, V. 4 N. 8 (2017)
Toriella tubulifera Sakay., K. L. Pang et E. B. G. Jones, Fungal Diversity
Creators: name: Tibell, Sanja
name: Tibell, Leif
name: Pang, Ka-Lai
name: Jones, E. B. Gareth
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Sordariomycetes
Microascales
Halosphaeriaceae
Toriella
Toriella tubulifera

description: 71. Toriella tubulifera (Kohlm.) Sakay., K.L. Pang et E.B.G. Jones, Fungal Diversity 46(“1”): 100 (2011)
 Substrate and distribution: Marine wood. Öland, Skåne, Uppland.
 Notes: Reported by Henningsson (1974) as Ceriosporopsis tubulifera (Kohlm.) P.W. Kirk ex Kohlm. from localities from the Swedish Baltic and Skåne.
description: Published as part of Tibell, Sanja, Tibell, Leif, Pang, Ka-Lai & Jones, E. B. Gareth, 2020, A conspectus of the filamentous marine fungi of Sweden, pp. 141-153 in Botanica Marina (Warsaw, Poland) (Warsaw, Poland) 63 (2) on page 150, DOI: 10.1515/bot-2018-0114, http://zenodo.org/record/11360145
«HA VENCIDO LO IMPOSIBLE»: IN RICORDO DI MAX PFISTER (1932 2017)
Creators: name: Bellone, Luca
Publisher: name: RiCOGNIZIONI
Year: 2017

description: In memoriam in ricordo di Max Pfister (1932 2017)
description: RiCOGNIZIONI, V. 4 N. 8 (2017)
New 3,4-seco-diterpene and coumarin derivative from the leaves of Trigonostemon flavidus Gagnep
Creators: name: Ban, Ninh Khac
name: Linh, Tran My
name: Mai, Nguyen Chi
name: Tai, Bui Huu
name: Nhiem, Nguyen Xuan
name: Hoang, Nguyen Huy
name: Van Kiem, Phan
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Two new compounds named trigoflavidus A (1) and trigoflavidus B (2), and eight known compounds, trigoflavidone (3), heterophypene (4), howpene C (5), 3,4-seco-sonderianol (6), trigonochinene C (7), fraxidin (8), isofraxidin (9), and isofraxetin (10) were isolated from the leaves of Trigonostemon flavidus Gagnep. by various chromatographic methods. Their chemical structures were elucidated via UV, IR, HR-ESI-MS and NMR spectroscopic methods and divided into two groups including six 3,4-seco-diterpenes (1, 3-7) and four coumarins (2, 8-10). Absolute configurations at stereocenters of compound 1 were confirmed by comparison of its CD spectra with those of the TD-DFT calculations. At a concentration of 30 µM, compounds 1–10 exhibited weak cytotoxic activity toward LU1, HepG2, MCF7, and SKMel2 human cell lines (cell viability all over 50%).
Deep Learning: A Bayesian Perspective
Creators: name: Polson, Nicholas
name: Sokolov, Vadim
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Deep learning is a form of machine learning for nonlinear high dimensional pattern matching and prediction. By taking a Bayesian probabilistic perspective, we provide a number of insights into more efficient algorithms for optimisation and hyper-parameter tuning. Traditional high-dimensional data reduction techniques, such as principal component analysis (PCA), partial least squares (PLS), reduced rank regression (RRR), projection pursuit regression (PPR) are all shown to be shallow learners. Their deep learning counterparts exploit multiple deep layers of data reduction which provide predictive performance gains. Stochastic gradient descent (SGD) training optimisation and Dropout (DO) regularization provide estimation and variable selection. Bayesian regularization is central to finding weights and connections in networks to optimize the predictive bias-variance trade-off. To illustrate our methodology, we provide an analysis of international bookings on Airbnb. Finally, we conclude with directions for future research.
A novel streptonigrin type alkaloid from the Streptomyces flocculus CGMCC 4.1223 mutant ΔstnA/Q2
Creators: name: Wang, Xiaozheng
name: Xu, Fei
name: Huang, Tingting
name: Deng, Zixin
name: Lin, Shuangjun
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Streptonigrin (STN) is a highly functionalized aminoquinone alkaloid with broad and potent antitumor activities. Previously, the biosynthetic gene cluster of STN was identified in Streptomyces flocculus CGMCC 4.1223, revealing an α/β-hydrolase (StnA) and a methyltransferase (StnQ2). In this work, a double mutant ΔstnA/Q2 was constructed by genetic manipulation and produced a novel derivative of STN, named as streptonigramide. Structure of streptonigramide was established by spectroscopic analyses. Its biosynthetic pathway has been proposed as well.
Anomalous Dimensions for Boundary Conserved Currents in Holography via the Caffarelli-Silvestri Mechanism for p-forms
Creators: name: La Nave, Gabriele
name: Phillips, Philip
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Although it is well known that the Ward identities prohibit anomalous dimensions for conserved currents in local field theories, a claim from certain holographic models involving bulk dilaton couplings is that the gauge field associated with the boundary current can acquire an anomalous dimension. We resolve this conundrum by showing that all the bulk actions that produce anomalous dimensions for the conserved current generate non-local actions at the boundary. In particular, the Maxwell equations are fractional. To prove this, we generalize to p-forms the Caffarelli/Silvestre (CS) extension theorem. In the context of scalar fields, this theorem demonstrates that second-order elliptic differential equations in the upper half-plane in ${\mathbb R}_+^{n+1}$ reduce to one with the fractional Laplacian, $Δ^γ$, when one of the dimensions is eliminated. From the p-form generalization of the CS extension theorem, we show that at the boundary of the relevant holographic models, a fractional gauge theory emerges with equations of motion of the form, $Δ^γA^t= 0$ with $γ$ $\in R$ and $A^t$ the boundary components of the gauge field. The corresponding field strength $F = d_γA^t= dΔ^\frac{γ-1}{2} A^t$ is invariant under $A^t \rightarrow A^t+ d_γΛ$ with the fractional differential given by $d_γ\equiv (Δ)^\frac{γ-1}{2}d$, implying that $[A^t]=γ$ which is in general not unity.
description: Published Version
IN MEMORIAM CLAUDIO GORLIER (1926-2017)
Creators: name: Deandrea, Pietro
Publisher: name: RiCOGNIZIONI
Year: 2017

description: In memoriam Claudio Gorlier (1926-2017)
description: RiCOGNIZIONI, V. 4 N. 8 (2017)
Gradual partial-collapse theory for ideal nondemolition measurements of qubits in circuit QED
Creators: name: Feng, Wei
name: Zhang, Cheng
name: Wang, Zhong
name: Qin, Lupei
name: Li, Xin-Qi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The conventional method of qubit measurements in circuit QED is employing the dispersive regime of qubit-cavity coupling, which results in an approximated scheme of quantum nondemolition (QND) readout. This scheme becomes problematic in the case of strong coupling and/or strong measurement drive, owing to the so-called Purcell effect. A recent proposal by virtue of longitudinal coupling suggests a new scheme to realize fast, high-fidelity, and {\it ideal QND} readout of qubit state. The aim of the present work is twofold: (i) In parallel to what has been done in the past years for the dispersive readout, we carry out the gradual partial-collapse theory for this recent scheme, in terms of both the quantum trajectory equation and quantum Bayesian approaches. The partial-collapse weak measurement theory is useful for such as the measurement-based feedback control and other quantum applications. (ii) In the physical aspect, we construct the joint qubit-plus-cavity entangled state under continuous measurement and present a comprehensive analysis for the quantum efficiency,qubit-state purity, and signal-to-noise ratio in the output currents. The combination of the joint state and the quantum Bayesian rule provides a generalized scheme of cavity reset associated with the longitudinal coupling, which can restore the qubit to a quantum pure state from entanglement with the cavity states, and thus benefits the successive partial-collapse measurements after qubit rotations.
description: 10 pages, 1 figure
[rec. di] Giuseppe PARINI, "Soggetti per artisti", a cura di P. Bartesaghi e P. Frassica Pisa-Roma, Fabrizio Serra, 2016, 264 pp.
Creators: name: Moretti, Viviana
Publisher: name: RiCOGNIZIONI
Year: 2017

description: Recensione di Giuseppe Parini, "Soggetti per artisti", a cura di P. Bartesaghi e P. Frassica Pisa-Roma, Fabrizio Serra, 2016
description: RiCOGNIZIONI, V. 4 N. 8 (2017)
The Interstellar Medium and Star Formation of Galactic Disks. I. ISM and GMC properties with Diffuse FUV and Cosmic Ray Backgrounds
Creators: name: Li, Qi
name: Tan, Jonathan C.
name: Christie, Duncan
name: Bisbas, Thomas G.
name: Wu, Benjamin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a series of adaptive mesh refinement (AMR) hydrodynamic simulations of flat rotation curve galactic gas disks with a detailed treatment of the interstellar medium (ISM) physics of the atomic to molecular phase transition under the influence of diffuse FUV radiation fields and cosmic ray backgrounds. We explore the effects of different FUV intensities, including a model with a radial gradient designed to mimic the Milky Way. The effects of cosmic rays, including radial gradients in their heating and ionization rates, are also explored. The final simulations in this series achieve $4\:$pc resolution across the $\sim20\:$kpc global disk diameter, with heating and cooling followed down to temperatures of $\sim10\:$K. The disks are evolved for $300\:$Myr, which is enough time for the ISM to achieve a quasi-statistical equilibrium. In particular, the mass fraction of molecular gas stabilizes by $\sim$200 Myr. Additional global ISM properties are analysed. Giant molecular clouds (GMCs) are also identified and the statistical properties of their populations examined. GMCs are tracked as the disks evolve. GMC collisions, which may be a means of triggering star cluster formation, are counted and the rates compared with analytic models. Relatively frequent GMC collision rates are seen in these simulations and their implications for understanding GMC properties, including the driving of internal turbulence, are discussed.
description: Accepted by PASJ (cloud-cloud collision special issue)
A new phenolic glycoside from Trollius chinensis Bunge with anti-inflammatory and antibacterial activities
Creators: name: Feng, Jie
name: Zhao, Danyang
name: Xu, Qiannan
name: Liu, Xiangzhong
name: Zhou, Mi
name: Ye, Xiansheng
name: Lin, Ting
name: Wang, Guanghui
name: Sun, Cuiling
name: Ding, Rong
name: Tian, Wenjing
name: Chen, Haifeng
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: A undescribed phenolic glycoside, trochinenol A (1), was isolated from the flowers of Trollius chinensis Bunge and the structure was identified by spectroscopic methods. Its anti-inflammatory and antibacterial effects were investigated by broth microdilution and NF-κB reporter gene assays. Consequently, compound 1 exhibited an appreciable effect against Staphylococcus aureus with the MIC value of 6.25 µg/mL. Besides, it showed moderate effect against TNFα-induced activation of NF-κB pathway.
Evaluation of a Disease Complex Between Fusarium Oxysporum F. Sp. Lycopersici and Meloidogyne Javanica different Tomato Cultivars
Creators: name: M. W, Mwangi
name: W. M, Muiru
Publisher: name: The Eldoret National Polytechnic
Year: 2024
Subjects: Disease complex
disease severity
FOL fusarium wilt
root knot nematodes
tomato cultivars

description: Root-knot nematodes (RKN) and Fusarium oxysporum f. sp. lycopersici (FOL) wilt disease interact to form a disease complex that causes considerable damage to crops. The present investigation was to study a disease complex between Fusarium oxysporum f. sp. lycopersici (FOL) and Meloidogyne javanica at different inoculum densities of 500, 1000, 2000 and 3000-second stage juveniles (J2s). The experiment was in two tomato cultivars Rambo F1 and Prostar F1 in greenhouse environment.  Rambo F1 cultivar was resistant to the isolate of FOL while Prostar F1 was susceptible. Seedlings of two different tomato cultivars were inoculated with FOL and M. javanica, at different inoculum densities in a greenhouse experiment. The plants were evaluated on FOL disease severity; populations of M. javanica J2s, height, root and shoot dry weight after 10 weeks of inoculation. The slope coefficient was positive for FOL disease severity in the two tomato cultivars, with cultivar Prostar F1 having a higher value (0.00068) than Rambo F1 (0.000194). The regression model of the observed variation in disease severity, versus M. javanica J2s increasing inoculum levels was significant for the two tomato cultivars. However, it was higher in cultivar Prostar F1 at 68.4%, than in Rambo F1 (23.3%). As M. javanica J2s inoculum levels increased, wilt disease severity increased but at a greater rate in the tomato cultivar Prostar F1. Co-infection with FOL and M. javanica resulted in greater reductions in plant growth compared to nematode only inoculations. The reductions in growth increased progressively when tomato plants were inoculated with FOL and increasing M. javanica J2s.  Increasing M. javanica nematodes in the soil would lead to increased FOL disease severity and reduction in the growth. It is important to control both RKN and FOL wilt disease to prevent occurrence of a disease complex that would greatly lead to loss in production.
Field Theory of Disordered Elastic Interfaces at 3-Loop Order: Critical Exponents and Scaling Functions
Creators: name: Husemann, Christoph
name: Wiese, Kay Joerg
Publisher: name: arXiv
Year: 2017
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: For disordered elastic manifolds in the ground state (equilibrium) we obtain the critical exponents for the roughness and the correction-to-scaling up to 3-loop order, i.e. third order in $ε=4-d$, where $d$ is the internal dimension $d$. We also give the full 2-point function up to order $ε^{2}$, i.e. at 2-loop order.
description: v1: 74 pages, 88 figures; v2: paper split into to parts; v3: typos corrected and hyper-ref enabled
Healthcare utilization and the association with cardiovascular health of African-born and U.S.-born Blacks
Creators: name: Oyedele, Olubukunola A.
Publisher: name: No Publisher Supplied
Year: 2020

description: African born - Blacks are the fastest growing immigrants in the United States comprising 4.8% of the total foreign-born population. African-born Blacks are also culturally, ethnically, religiously, educationally diverse from their U.S-born and other foreign-born Black counterparts. The pathway by which they arrive and reasons for migrating into the United States (U.S.) also differentiate them from each other. Yet, most studies of Blacks in the U.S. largely overlook the heterogeneity within this group rather consolidating them as one monolithic group which may have implications for the health status of the African-born Black residing in the United States. The cardiovascular health of African-born Blacks in the U.S. has been largely unexamined despite recent studies reporting an upsurge in the burden of cardiovascular disease in Sub-Saharan Africa. It is likely that African-born Blacks are migrating into the U.S. with cardiovascular risk factors and diseases that they are unaware of due to subpar healthcare systems already overburdened, lack of effective preventive strategies and lack of economic resources to treat effectively even when aware. In addition, immigrant populations are often identified as a vulnerable population due to their limited English language proficiency, immigration status, lack of socioeconomic resources, and stigma and marginalization due to religious and cultural background. In the case of the African-born Black this is further exacerbated by racial discrimination due to the color of their skin resembling their U.S.-born counterpart which elevates their risk of poor health and inadequate medical care in the United States. Lastly, acculturation has been linked to adopting lifestyle behaviors such as poor diet, lack of physical activity, smoking status and being obese that further increase the risk of African-born Blacks developing cardiovascular diseases. African-born Blacks in the U.S. often report a higher likelihood of being uninsured, often have inadequate health insurance coverage, usually identify no usual source of care or healthcare provider and often do not get the needed preventive services. This study aimed to determine whether healthcare utilization is associated with cardiovascular health among African-born and U.S.-born Blacks and to evaluate whether the associations depended on length of stay.Understanding the healthcare utilization of African-born Blacks and its association with their cardiovascular health could help in reducing the disparities in the gaps observed between Blacks and Whites in the U.S and elucidate how and if the gaps observed can be attributed to African-born Blacks being lumped in with U.S.-born Blacks. There is a need to disaggregate data on African-born Blacks in national databases on the health-related risk behaviors, chronic health conditions, use of preventive services, access to healthcare and healthcare utilization of African immigrants.
Dual Ore's theorem on distributive intervals of finite groups
Creators: name: Palcoux, Sebastien
Publisher: name: arXiv
Year: 2017
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20D30, 05E15, 20C15, 06C15

description: This paper gives a self-contained group-theoretic proof of a dual version of a theorem of Ore on distributive intervals of finite groups. We deduce a bridge between combinatorics and representations in finite group theory.
description: 8 pages. Self-contained and group-theoretic version of arXiv:1704.00745. It contains some preliminaries of arXiv:1604.06765, arXiv:1702.02124. Erratum: in Lemmas 3.7 and 3.8 of the published version, 'finite dimensional' should be 'irreducible' (it is now corrected on arxiv)
Six 19,20-epoxycytochalasans from endophytic Diaporthe sp. RJ-47
Creators: name: Zhang, Qiong
name: Huang, Zhi-pu
name: Zhao, Yu-ying
name: Zhao, Qing
name: Chen, Jian-hong
name: Ma, Wei-guang
name: Zhang, Xiao-mei
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: Two new cytochalasins, deacetyl-19-epi-cytochalasin P1 (1), deacetyl-19,20-epoxycytochalasin D (2) were isolated from the endophytic fungus Diaporthe sp. RJ-47, along with four known compounds deacetyl-5,6-dihydro-7-oxo-19,20-epoxycytochalasin C (3), 19,20-epoxycytochalasin Q (4), 19,20-epoxycytochalasin C (5) and deacetyl-19,20-epoxy cytochalasin C (6). Their structures were unambiguously elucidated on the basis of the comprehensive analysis of extensive spectroscopic data. The antimicrobial effects of these compounds were evaluated.
Psychology and Sustainability, Homo Technicus and Slow Tech
Creators: name: Aillon, Jean-Louis
name: Arrobbio, Osman
name: Barbiero, Giuseppe
name: Camino, Elena
name: Colucci-Gray, Laura
name: Dodman, Martin
name: Ferrara, Enzo
name: Folco, Silvano
Publisher: name: Università degli Studi di Torino
Year: 2019

description: Visions for Sustainability, No 12 (2019) with Special Section "Slow Tech"
Phytochemical constituents and biological activities of Dianthus helenae Vved., growing in Uzbekistan
Creators: name: Yusupova, Ugiloy
name: Usmanov, Durbek
name: Azamatov, Aziz
name: Ramazonov, Nurmurod
name: Rejepov, Jumadilla
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: In the present study, six known compounds were investigated that were isolated from the aerial parts of plant Dianthus helenae Vved. The structures of these compounds were identified as polypodine B (1), 2,3,20,22-diacetonide-20-hydroxyecdysone (2), 20-hydroxyecdysone (3), cyasterone (4), α-ecdysone (5) and 2-deoxy-α-ecdysone (6). Their structures were confirmed by NMR-, ESI-MS, and IR-spectroscopy. The compounds (5) and (6) are reported for the first time from this species. Furthermore, compounds (2) and (4) were isolated for the first time from the Caryophyllaceae family. In addition, all these phytoecdysteroids were investigated for a nootropic activity. Thus, the total phytoecdysteroids-containing preparation at a dose of 25 mg/kg increases two times the motor activity, an approximate reaction – four times and exploratory behavior − 1.4 times compared to control animals.
Slow Tech: Towards an ICT for the Anthropocene Age
Creators: name: Patrignani, Norberto
name: Whitehouse, Diane
Publisher: name: Università degli Studi di Torino
Year: 2019

description: Information and Communication Technologies (ICT) are shaping our society and planet with unknown impacts and are definitely an integral part of the Anthropocene Era. The entire ICT supply chain should move towards a more systemic view of the infosphere. This paper proposes the concept of Slow Tech as a heuristic compass for finding new directions in the design of future complex socio-technical systems, by paying attention to ICT that are good, clean, and fair, socially desirable, environmentally sustainable, and ethically acceptable. Key words: ICT, Slow Tech, Anthropocene
description: Visions for Sustainability, No 12 (2019) with Special Section "Slow Tech"
title: Challenges and Opportunities Modeling the Dynamic Tumor Matrisome
Creators: name: Peyton, Shelly R.
name: Platt, Manu O.
name: Cukierman, Edna
Publisher: name: University of Massachusetts Amherst
Year: 2023

description: We need novel strategies to target the complexity of cancer and, particularly, of metastatic disease. As an example of this complexity, certain tissues are particularly hospitable environments for metastases, whereas others do not contain fertile microenvironments to support cancer cell growth. Continuing evidence that the extracellular matrix (ECM) of tissues is one of a host of factors necessary to support cancer cell growth at both primary and secondary tissue sites is emerging. Research on cancer metastasis has largely been focused on the molecular adaptations of tumor cells in various cytokine and growth factor environments on 2-dimensional tissue culture polystyrene plates. Intravital imaging, conversely, has transformed our ability to watch, in real time, tumor cell invasion, intravasation, extravasation, and growth. Because the interstitial ECM that supports all cells in the tumor microenvironment changes over time scales outside the possible window of typical intravital imaging, bioengineers are continuously developing both simple and sophisticated in vitro controlled environments to study tumor (and other) cell interactions with this matrix. In this perspective, we focus on the cellular unit responsible for upholding the pathologic homeostasis of tumor-bearing organs, cancer-associated fibroblasts (CAFs), and their self-generated ECM. The latter, together with tumoral and other cell secreted factors, constitute the “tumor matrisome”. We share the challenges and opportunities for modeling this dynamic CAF/ECM unit, the tools and techniques available, and how the tumor matrisome is remodeled (e.g., via ECM proteases). We posit that increasing information on tumor matrisome dynamics may lead the field to alternative strategies for personalized medicine outside genomics.
Educational Unsustainability in Sub-Saharan Africa: In Search of Counter-Narratives to Policy Pressures and Exponential Tech Growth
Creators: name: Gallagher, Michael
Publisher: name: Università degli Studi di Torino
Year: 2019

description: The educational systems of sub-Saharan Africa have become increasingly entangled in a network of global actors: supranational and national policy, non-government organisations (NGOs), funders, and commercial organizations wanting to capitalize on perceived gaps in local capacity. Education is being renegotiated through an explicit, inexorable link to technology, an explicit call to rapidly construct technological markets for education throughout sub-Saharan Africa, and an implicit erosion of local educational autonomy as a result. This research interrogates commercialised edtech policy in sub-Saharan Africa and explores its effects on how educational infrastructure is being built and imagined in higher education. This obscures local context and educational practice with a global, marketized and standardised new ‘normal’ which carries with it considerable ecological implications. There is an explicit need for a rethinking of local educational autonomy in face of policy pressures which are stimulating a largely unsustainable acceleration of educational technology. This paper seeks to interrogate what methods exist for adaptation of policy targets and the creation of autonomous spaces for deliberation and adaptation consistent with horizontalism, including participatory approaches, degrowth approaches, rights to repair, and community-owned technologies. Without this, the acceleration of edtech, e-waste, and the global imaginaries of digital education are likely to continue. Key words: Horizontalism, edtech, Sustainable Development Goals, Policy, Sub-Saharan Africa
description: Visions for Sustainability, No 12 (2019) with Special Section "Slow Tech"