cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Il complimento nelle culture orientate socialmente. Il caso di Baselice
Creators: name: Castagneto, Marina
name: Italiano, Letizia
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Compliment; Ethnolinguistics; Pragmatics; Conversation analysis

description: The present study aims to explore compliments and compliment responses used by Italian language speakers based in Baselice (BN), a small city in Southern Italy. The participants live in a strongly cohesive linguistic community within a collectivistic and high-context culture. In such a context, in which much emphasis is placed on interpersonal relationships, on the mutual face and the Connection Face (Arundale 2006), compliments are considered a verbal gift and are welcomed, therefore they tend to be frequently accepted. In responding to them, the interactants use few recurring conversational patterns, displaying the same words in an identical linear order. By analysing the distribution of specific compliment responses, as ironic acceptance, it can be extrapolated that Baselice’s linguistic community is stratified by gender. On the ethnolinguistic side, the corpus shows that in Baselice compliments on specific topics, such as children or food in preparation, are felt as dangerous, because they should cast evil eye on the complimented topic or on the complimentees themselves. The protective measure against fascination is to include the formula lu bǝnǝdicǝ (“God bless him”) in the compliment; in the case the complimenters forgets to do so, the other interactants will encourage them to repeat the compliment. In this way, the potential effects of evil eye will be averted and the face-balancing will not be damaged either. It can be suggested that the power of conversational negotiation in Baselice is stronger than the evil eye.
description: Studi di glottodidattica, V. 7, N. 3 (2022)
Observation of Kondo condensation in a degenerately doped silicon metal
Creators: name: Im, H.
name: Lee, D. U.
name: Jo, Y.
name: Kim, J.
name: Chong, Y.
name: Song, W.
name: Kim, H.
name: Kim, E. K.
name: Sin, S. -J.
name: Moon, S.
name: Prance, J. R.
name: Pashkin, Yu. A.
name: Tsai, J. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: When a magnetic moment is embedded in a metal, it captures itinerant electrons to form the Kondo cloud1,2, which can spread out over a few micrometres3,4. For a metal with dense magnetic impurities such that Kondo clouds overlap with each other, correlated ground states are formed. When the impurities form a regular lattice, the result is a heavy fermion or anti-ferromagnetic order depending on the dominant interaction5,6. Even in the case of random impurities, overlapping Kondo clouds are expected to form a coherent ground state. Here, we examine this issue by performing electrical transport and high-precision tunnelling density-of-states (DOS) spectroscopy measurements in a highly P-doped crystalline silicon metal where disorder-induced localized magnetic moments exist7. We detect the Kondo effect in the resistivity of the Si metal below 2 K and an exotic pseudogap in the DOS with gap edge peaks at a Fermi energy below 100 mK. The DOS gap and peaks are tuned by applying an external magnetic field and transformed into a metallic Altshuler-Aronov gap8 in the paramagnetic disordered Fermi liquid (DFL) phase. We interpret this phenomenon as the Kondo condensation, the formation of a correlated ground state of overlapping Kondo clouds, and its transition to a DFL. The boundary between the Kondo condensation and DFL phases is identified by analysing distinct DOS spectra in the magnetic field-temperature plane. A detailed theoretical analysis using a holographic method 9 , 10 , 11 reproduces the unusual DOS spectra, 1, supporting our scenario. Our work demonstrates the observation of the magnetic version of Bardeen-Cooper-Shrieffer (BCS) pair condensation and will be useful for understanding complex Kondo systems.
description: 34 pages,5+6 figures, accepted in nature physics
Multi Weyl Points and the Sign Change of Their Topological Charges in Woodpile Photonic Crystals
Creators: name: Chang, Ming-Li
name: Xiao, Meng
name: Chen, Wen-Jie
name: Chan, C. T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that Weyl points with topological charges 1 and 2 can be found in very simple chiral woodpile photonic crystals, which can be fabricated using current techniques down to the nano-scale. The sign of the topological charges can be tuned by changing the material parameters of the crystal, keeping the structure and the symmetry unchanged. The underlying physics can be understood using a tight binding model, which shows that the sign of the charge depends on the hopping range. Gapless surface states and their back-scattering immune properties are also demonstrated in these systems.
Modeling Variability in Template-based Code Generators for Product Line Engineering
Creators: name: Greifenberg, Timo
name: Müller, Klaus
name: Roth, Alexander
name: Rumpe, Bernhard
name: Schulze, Christoph
name: Wortmann, Andreas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Generating software from abstract models is a prime activity in model-drivenengineering. Adaptable and extendable code generators are important to address changing technologies as well as user needs. However, theyare less established, as variability is often designed as configuration options of monolithic systems. Thus, code generation is often tied to a fixed set of features, hardly reusable in different contexts, and without means for configuration of variants. In this paper,we present an approach for developing product lines of template-based code generators. This approach applies concepts from feature-oriented programming to make variability explicit and manageable. Moreover, it relies on explicit variability regions (VR) in a code generators templates, refinements of VRs, and the aggregation of templates and refinements into reusable layers. Aconcrete product is defined by selecting one or multiple layers. If necessary, additional layers required due to VR refinements are automatically selected.
description: 16 pages, 3 figures, Modellierung 2016 Conference
Synchrotron emission from double-peaked radio light curves of the symbiotic recurrent nova V3890 Sagitarii
Creators: name: Nyamai, Miriam M.
name: Linford, Justin D.
name: Allison, James R.
name: Chomiuk, Laura
name: Woudt, Patrick A.
name: Ribeiro, Valério A. R. M.
name: Sarbadhicary, Sumit K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present radio observations of the symbiotic recurrent nova V3890 Sagitarii following the 2019 August eruption obtained with the MeerKAT radio telescope at 1.28 GHz and Karl G. Janksy Very Large Array (VLA) at 1.26 to 5 GHz. The radio light curves span from day 1 to 540 days after eruption and are dominated by synchrotron emission produced by the expanding nova ejecta interacting with the dense wind from an evolved companion in the binary system. The radio emission is detected early on (day 6) and increases rapidly to a peak on day 15. The radio luminosity increases due to a decrease in the opacity of the circumstellar material in front of the shocked material and fades as the density of the surrounding medium decreases and the velocity of the shock decelerates. Modelling the light curve provides an estimated mass-loss rate of $M_{\textrm {wind}} \approx 10^{-8} {\textrm {M}}_\odot~{\textrm {yr}}^{-1}$ from the red giant star and ejecta mass in the range of $M_{\textrm {ej}}=10^{-5}-10^{-6}~{\textrm {M}}_\odot$from the surface of the white dwarf. V3890 Sgr likely hosts a massive white dwarf similar to other symbiotic recurrent novae, thus considered a candidate for supernovae type Ia (SNe Ia) progenitor. However, its radio flux densities compared to upper limits for SNe Ia have ruled it out as a progenitor for SN 2011fe.
Flat structures on Frobenius Manifolds in the case of irrelevant deformations
Creators: name: Belavin, A.
name: Spodyneiko, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we use the recently suggested conjecture about the integral representation for the flat coordinates on Frobenius manifolds, connected with the isolated singularities, to compute the flat coordinates and Saito primitive form on the space of the deformations of Gepner chiral ring $\widehat{SU}(3)_4$. We verify this conjecture comparing the expressions for the flat coordinates obtained from the conjecture with the one found by direct computation. The considered case is of a particular interest since together with the relevant and marginal deformations it has one irrelevant deformation.
Refugees and asylum seekers who have experienced trauma: Thematic synthesis of therapeutic boundary considerations
Creators: name: Davoren, Niamh
name: McEleney, Alice
name: Corcoran, Santhi
name: Tierney, Phelim
name: FORTUNE, DONAL
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: Objective: Therapeutic boundaries are limits to appropriate behaviours within a therapist–client relationship (e.g. related to accepting gifts, self-disclosures, therapist neutrality and advocacy). Therapeutic boundary considerations are fundamental in the care of refugees and asylum seekers. Research on the experiences of therapists navigating such boundaries is sparse and warrants further exploration. The aim of this qualitative systematic review was to thematically synthesise literature regarding therapists' (psychologists, psychotherapists, counsellors) experiences of implementing flexible therapeutic boundaries with refugee and asylum seeker clients and determine how such applications have been helpful for therapeutic interventions. Method: Six databases were searched. Following full-text screening, 21 papers were included in the analysis. Boundary theory underpinned the analysis. Results: Three major themes were developed: (i) Changes to Therapeutic Practice & Therapeutic Intervention, (ii) Re-Conceptualisation of Therapy as ‘Clinical Political’ and Re-Conceptualisation of Therapist Identity and (iii) Careful Monitoring of Personal Boundaries—Not becoming ‘Hardened’ or ‘Haunted’. Papers described how, when used in a reflective, considerate way, flexible therapeutic boundaries can strengthen the therapist–client alliance and positively impact therapeutic interventions. Many therapists acknowledged making conscious efforts to re-conceptualise therapeutic work with refugee and asylum seeker clients from advocacy standpoints. However, systemic constraints, and lack of guidance, made this difficult to navigate and contributed to therapist burn-out. Conclusions: Boundary considerations manifested as interpersonal, structural and cultural changes to practice. These have implications for clinical practice and developing guidelines on boundary practices with refugees and asylum seekers. Future research should explore promoting therapist well-being and training needs for therapists supporting this population.
Le proteste nell’italiano di nativi e non nativi: strategie e meccanismi di modulazione
Creators: name: De Marco, Anna
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Speech act of complaint; second language acquisition; (socio)pragmatics

description: The research presented in this contribution aims to observe and describe the pragmalingusitic and sociopragmatic competence of L2 Italian learners, with different L1s, while carrying out the communicative act of complaining. The focus of the study is a first exploration of the linguistic behaviors natives and non-natives display in the use of their strategies and their distribution with reference to the type of relationship between the interlocutors which varies according to their hierarchical relationship (P) and social distance (D), and the communicative situation. Results show a general difficulty for learners with a low level of proficiency to use all the strategies and to adapt them to the different situations and to the relationship they maintain with the interlocutors. Learners with a higher level of competence show a greater variety of modifications and of supporting acts although not always appropriate to the roles speakers play in the different situations.
description: Studi di glottodidattica, V. 7, N. 3 (2022)
The RAVE-on catalog of stellar atmospheric parameters and chemical abundances for chemo-dynamic studies in the Gaia era
Creators: name: Casey, Andrew R.
name: Hawkins, Keith
name: Hogg, David W.
name: Ness, Melissa
name: Walter-Rix, Hans
name: Kordopatis, Georges
name: Kunder, Andrea
name: Steinmetz, Matthias
name: Koposov, Sergey
name: Enke, Harry
name: Sanders, Jason
name: Gilmore, Gerry
name: Zwitter, Tomaž
name: Freeman, Kenneth C.
name: Casagrande, Luca
name: Matijevič, Gal
name: Seabroke, George
name: Bienaymé, Olivier
name: Bland-Hawthorn, Joss
name: Gibson, Brad K.
name: Grebel, Eva K.
name: Helmi, Amina
name: Munari, Ulisse
name: Navarro, Julio F.
name: Reid, Warren
name: Siebert, Arnaud
name: Wyse, Rosemary
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The orbits, atmospheric parameters, chemical abundances, and ages of individual stars in the Milky Way provide the most comprehensive illustration of galaxy formation available. The Tycho-Gaia Astrometric Solution (TGAS) will deliver astrometric parameters for the largest ever sample of Milky Way stars, though its full potential cannot be realized without the addition of complementary spectroscopy. Among existing spectroscopic surveys, the RAdial Velocity Experiment (RAVE) has the largest overlap with TGAS ($\gtrsim$200,000 stars). We present a data-driven re-analysis of 520,781 RAVE spectra using The Cannon. For red giants, we build our model using high-fidelity APOGEE stellar parameters and abundances for stars that overlap with RAVE. For main-sequence and sub-giant stars, our model uses stellar parameters from the K2/EPIC. We derive and validate effective temperature $T_{\rm eff}$, surface gravity $\log{g}$, and chemical abundances of up to seven elements (O, Mg, Al, Si, Ca, Fe, Ni). We report a total of 1,685,851 elemental abundances with a typical precision of 0.07 dex, a substantial improvement over previous RAVE data releases. The synthesis of RAVE-on and TGAS is the most powerful data set for chemo-dynamic analyses of the Milky Way ever produced.
description: Derived labels, associated errors, and relevant metadata are available from the RAVE database (http://www.rave-survey.org) from 19 September 2016
Dall’ironia al sarcasmo: quello che le parole non dicono
Creators: name: Gurrado, Glenda
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Irony; attitude; sarcasm; teasing; verbal irony

description: Irony is traditionally defined as an attitude of communicating something by meaning something else. Nevertheless, ironic communication, well-known as verbal irony, cannot be reduced to such a limited interpretation: irony is a complex attitude that is communicated taking advantage of several syntactic, pragmatic and prosodic resources. A number of studies have tried to correctly define the characteristics of ironic communication so far, most of all from a pragmatic perspective; an interesting debate has been developed between irony as a form of mention or as a form of pretence. Prosody also plays a key role in verbal irony, most of all when contextual references are ambiguous or insufficient, but to date very few studies have focused on the prosodic cues of irony. Two main tendencies seem to be adopted by speakers in ironic communication and languages seem to exploit the typical prosodic traits in different ways. The present paper aims to provide an overview of the different interpretation of irony in order to reinforce the idea that it is not only the expression of the opposite of what is intended, but it should be considered an attitude in the first place, that is communicated by means of a particular strategy used to protect the personal image of the speaker. We also intend to highlight the importance of prosody in this kind of indirect communication that is largely based on the relation between verbal and non-verbal level.
description: Studi di glottodidattica, V. 7, N. 3 (2022)
Two-stage 2D-to-3D reconstruction of realistic microstructures: Implementation and numerical validation by effective properties
Creators: name: Seibert, Paul
name: Raßloff, Alexander
name: Kalina, Karl
name: Gussone, Joachim
name: Bugelnig, Katrin
name: Diehl, Martin
name: Kästner, Markus
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Realistic microscale domains are an essential step towards making modern multiscale simulations more applicable to computational materials engineering. For this purpose, 3D computed tomography scans can be very expensive or technically impossible for certain materials, whereas 2D information can be easier obtained. Based on a single or three orthogonal 2D slices, the recently proposed differentiable microstructure characterization and reconstruction (DMCR) algorithm is able to reconstruct multiple plausible 3D realizations of the microstructure based on statistical descriptors, i.e., without the need for a training data set. Building upon DMCR, this work introduces a highly accurate two-stage reconstruction algorithm that refines the DMCR results under consideration of microstructure descriptors. Furthermore, the 2D-to-3D reconstruction is validated using a real computed tomography (CT) scan of a recently developed beta-Ti/TiFe alloy as well as anisotropic "bone-like" spinodoid structures. After a detailed discussion of systematic errors in the descriptor space, the reconstructed microstructures are compared to the reference in terms of the numerically obtained effective elastic and plastic properties. Together with the free accessibility of the presented algorithms in MCRpy, the excellent results in this study motivate interdisciplinary cooperation in applying numerical multiscale simulations for computational materials engineering.
Wireless Power Transfer in Massive MIMO Aided HetNets with User Association
Creators: name: Zhu, Yongxu
name: Wang, Lifeng
name: Wong, Kai-Kit
name: Jin, Shi
name: Zheng, Zhongbin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper explores the potential of wireless power transfer (WPT) in massive multiple input multiple output (MIMO) aided heterogeneous networks (HetNets), where massive MIMO is applied in the macrocells, and users aim to harvest as much energy as possible and reduce the uplink path loss for enhancing their information transfer. By addressing the impact of massive MIMO on the user association, we compare and analyze two user association schemes. We adopt the linear maximal ratio transmission beam-forming for massive MIMO power transfer to recharge users. By deriving new statistical properties, we obtain the exact and asymptotic expressions for the average harvested energy. Then we derive the average uplink achievable rate under the harvested energy constraint.
description: 36 pages, 11 figures, to appear in IEEE Transactions on Communications
Gesti delle mani e analisi linguistica: prospettive per gli studi in L1 e LS
Creators: name: Meluzzi, Chiara
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Multimodality; hand gestures; language acquisition; language teaching and learning

description: The work presents an overview of the studies concerning speech and gestures, by focusing in particular on hand gestures and linguistic acquisition in first and foreigner languages. After a discussion on hand gestures classification, several studies will be explored in order to highlight the main research topics, to discuss open problems and to trace possible further paths in the analysis of multimodal communication.
description: Studi di glottodidattica, V. 7, N. 3 (2022)
General aspects of effective field theories and few-body applications
Creators: name: Hammer, H. -W.
name: König, Sebastian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Effective field theory provides a powerful framework to exploit a separation of scales in physical systems. In these lectures, we discuss some general aspects of effective field theories and their application to few-body physics. In particular, we consider an effective field theory for non-relativistic particles with resonant short-range interactions where certain parts of the interaction need to be treated nonperturbatively. As an application, we discuss the so-called pionless effective field theory for low-energy nuclear physics. The extension to include long-range interactions mediated by photon and pion-exchange is also addressed.
description: 46 pages, 16 figures. Lectures prepared for the ECT* Doctoral Training Program, "Computational Nuclear Physics", April 13 - May 22, 2015. Submitted to Lect. Notes Phys., "An advanced course in computational nuclear physics: Bridging the scales from quarks to neutron stars", M. Hjorth-Jensen, M. P. Lombardo, U. van Kolck, Editors
Ovvietà e ridondanza della domanda retorica: dalla risposta implicata alla risposta esplicita
Creators: name: Sorianello, Patrizia
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Rhetorical questions; implicit meaning; implicit and explicit answers

description: The study contains some considerations on the indirect nature of the rhetorical question (RQ). The RQ is a non-prototypical speech act in which the interrogative form does not coincide with the conveyed meaning; it does not perform the function of an information-seeking question, for this reason it is not followed by a verbalized explicit answer. This study will explore the most representative features of RQs, by referring to its indirect status and to the field of possible responses. With regard to the latter aspect, some examples extracted from a speech corpus of spontaneous Italian will be discussed. We will try to demonstrate how the presence of a response is not incompatible with the semantic-pragmatic features of RQs nor with the functions more frequently performed in spontaneous speech.
description: Studi di glottodidattica, V. 7, N. 3 (2022)
Source misrepresentation on the origin of COVID-19
Creators: name: Bahry, David
Publisher: name: Zenodo
Year: 2022

description: A Nature news piece written by Dr. Amy Maxmen, published on 27 February, 2022 falsified its own source, claiming that a preprint by Gao et al. had said the exact opposite of what they in fact said. Gao et al. had concluded that the Huanan Seafood Market was not the origin of the COVID-19 pandemic, but only an early super-spreader; yet Dr. Maxmen claimed that Gao et al. had "trace[d] the outbreak back to" the market. The same false claim was later repeated in David Quammen's book Breathless. I submitted a correspondence to Nature on 24 November, 2022 concerning this. Nature did not reply, nor correct the false claim. Tweets to Nature and to Dr. Maxmen also received no reply.* Here is the correspondence, for the public record.

 *Addendum: On 12 December, 2022, Dr. Maxmen replied, denying that she had misrepresented Gao et al. I replied that her denial was dishonest, contradicting the clear meaning of her words.
Insegnare le lingue all’università durante la pandemia: uno studio di caso dell’università di Tor Vergata
Creators: name: Cavagnoli, Stefania
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Language didactics; universities; language center; teaching role; distance learning

description: Teaching languages at university during the pandemic: a case study of the university of Tor Vergata. This paper deals with the issue of distance teaching during the pandemic in universities, presenting an action research project in the form of observation and interview with a teacher. This case study is part of a wider project that also considers other languages taught in Italian CLAs, a study aimed at improving language teaching in Italian universities through innovations, including technological ones. The language of instruction considered is English, the most widely used in non-linguistic courses of study through the passing of an aptitude test.
description: Studi di glottodidattica, V. 7, N. 3 (2022)
Enfoque proteómico para el aislamiento de proteínas inmunorreactivas del camarón Litopenaeus vannamei
Creators: name: Miranda V., Pablo J.
name: Omeara G., Sandith K.
Publisher: name: Universidad de Cartagena
Year: 2017
Subjects: Camarón
Camarón cultivo - Análisis microbiológico
Camarones - Análisis
Tecnología de alimentos;

description: Tesis (Químico Farmacéutico) -- Universidad de Cartagena. Facultad de Ciencias Farmacéutica, 2017
description: Dentro de esta investigación, se busca identificar y aislar proteínas inmunorreactivas del extracto hervido del camarón L. vannamei con el fin de contribuir a elucidar el potencial alergénico de este y ayudar a definir proteínas que pudieran ser utilizadas en el diagnóstico y la inmunoterapia de la alergia al camarón.
Derivation of field theory for the classical dimer model using bosonization
Creators: name: Wilkins, Neil
name: Powell, Stephen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We derive a field theory for the two-dimensional classical dimer model by applying bosonization to Lieb's (fermionic) transfer-matrix solution. Our constructive approach gives results that are consistent with the well-known height theory, previously justified based on symmetry considerations, but also fixes coefficients appearing in the effective theory and the relationship between microscopic observables and operators in the field theory. In addition, we show how interactions can be included in the field theory perturbatively, treating the case of the double dimer model with interactions within and between the two replicas. Using a renormalization-group analysis, we determine the shape of the phase boundary near the noninteracting point, in agreement with results of Monte Carlo simulations.
description: 20 pages, 4 figures, 1 table
Chemical Diversity in the Ultra-faint Dwarf Galaxy Tucana II
Creators: name: Ji, Alexander P.
name: Frebel, Anna
name: Ezzeddine, Rana
name: Casey, Andrew R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first detailed chemical abundance study of the ultra-faint dwarf galaxy Tucana II based on high-resolution Magellan/MIKE spectra of four red giant stars. The metallicity of these stars ranges from [Fe/H] = -3.2 to -2.6, and all stars are low in neutron-capture abundances ([Sr/Fe] and [Ba/Fe] < -1). However, a number of anomalous chemical signatures are present. Three stars are carbon-enhanced, including the most metal-rich star. This star ([Fe/H]=-2.6) shows [Na,$α$,Sc/Fe] < 0, suggesting an extended star formation history with contributions from AGB stars and Type Ia supernovae. The other carbon-enhanced stars have [Fe/H] < -3 and may be consistent with enrichment by faint supernovae, if such supernovae can produce neutron-capture elements. A fourth star with [Fe/H] = -3 is carbon-normal, and exhibits distinct light element abundance ratios from the carbon-enhanced stars. The carbon-normal star implies that at least two distinct nucleosynthesis sources, both possibly associated with Population III stars, contributed to the early chemical enrichment of this galaxy. Despite its very low luminosity, Tucana II shows a diversity of chemical signatures that preclude it from being a simple "one-shot" first galaxy, but still provide a window to star and galaxy formation in the early universe.
description: 6 pages, 2 figures, 1 table, submitted to ApJL
Determinación cuantitativa de trimetil amina en carnes de pescado como índice de frescura
Creators: name: Fernández Castillo, Ambrosio
Publisher: name: Universidad de Cartagena
Year: 1974
Subjects: Microbiología de alimentos
Carne de pescado - Análisis
Carne - Prueba

description: Tesis (Químico Farmacéutico) -- Universidad de Cartagena. Facultad de Ciencias Farmacéutica, 1974
description: La presente investigación tiene como fin determinar el valor de la trimetil amina, como el índice de frescura de la carne de pescado
Interpretare gli esiti della verifica e della misurazione linguistica in italiano L2. Il ruolo delle percezioni e degli usi linguistici dichiarati
Creators: name: Machetti, Sabrina
name: Masillo, Paola
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Linguistic assessment; global Italian linguistic space; perceptions and language uses

description: Through the years, migration has raised specific needs, arising from linguistic and cultural contact, for the management of linguistic and cultural diversity in the host country. In a multilingual context, the extent to which an assessment tool that tends to be monolingual is able to take into account multilingual repertoires, in terms of transversality between languages, is still an open question. This contribution illustrates a study developed from two projects carried out in two different primary school contexts: the first, in which plurilingualism constitutes an individual characteristic derivable from a migratory background (Scandicci - FI); the second, in which plurilingualism represents a social fact (Autonomous Province of Bolzano). The study proceeds from the qualitative analysis of data collected by means of a sociolinguistic questionnaire, which preceded the administration of an Italian language test, aimed at detecting the linguistic uses and perceptions of the informants on the Italian language. The contribution aims at reflecting on the main features of the linguistic landscape of learners with a migration background or placed in a bi-communal bilingualism context. Particular attention will be paid to the transversal links that can be traced within plurilingual competence and to a reflection on the potential effects of plurilingual competence in the linguistic performance of learners for whom the Italian language represents a feature of a wider linguistic space.
description: Studi di glottodidattica, V. 7, N. 3 (2022)
Finite-key security analysis of differential-phase-shift quantum key distribution
Creators: name: Mizutani, Akihiro
name: Takeuchi, Yuki
name: Tamaki, Kiyoshi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Differential-phase-shift (DPS) quantum key distribution (QKD) is one of the major QKD protocols that can be implemented with a simple setup using a laser source and a passive detection unit. Recently, an information-theoretic security proof of this protocol has been established in [npj Quant. Inf. 5, 87 (2019)] assuming the infinitely large number of emitted pulses. To implement the DPS protocol in a real-life world, it is indispensable to analyze the security with the finite number of emitted pulses. The extension of the security proof to the finite-size regime requires the accommodation of the statistical fluctuations to determine the amount of privacy amplification. In doing so, Azuma's inequality is often employed, but unfortunately we show that in the case of the DPS protocol, this results in a substantially low key rate. This low key rate is due to a loose estimation of the sum of probabilities regarding three-photon emission whose probability of occurrence is very small. The main contribution of our work is to show that this obstacle can be overcome by exploiting the recently found novel concentration inequality, Kato's inequality. As a result, the key rate of the DPS protocol is drastically improved. For instance, assuming typical experimental parameters, a 3 Mbit secret key can be generated over 77 km for 8.3 hours, which shows the feasibility of DPS QKD under a realistic setup.
description: 17 pages, 6 figures
An Improved Normal Compliance Method for Dynamic Hyperelastic Problems with Energy Conservation Property
Creators: name: Barboteu, Mikaël
name: Bonaldi, Francesco
name: Danan, David
name: El-Hadri, Soad
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 74M15, 74M20, 74M10, 74B20, 74H15, 74S30, 49M15, 90C53, 70F40, 70-08 74M15, 74M20, 74M10, 74B20, 74H15, 74S30, 49M15, 90C53, 70F40, 70-08, 70E55, 35Q70

description: The purpose of this work is to present an improved energy conservation method for hyperelastodynamic contact problems based on specific normal compliance conditions. In order to determine this Improved Normal Compliance (INC) law, we use a Moreau--Yosida $α$-regularization to approximate the unilateral contact law. Then, based on the work of Hauret--LeTallec \cite{hauret2006energy}, we propose in the discrete framework a specific approach allowing to respect the energy conservation of the system in adequacy with the continuous case. This strategy (INC) is characterized by a conserving behavior for frictionless impacts and admissible dissipation for friction phenomena while limiting penetration. Then, we detail the numerical treatment within the framework of the semi-smooth Newton method and primal-dual active set strategy for the normal compliance conditions with friction. We finally provide some numerical experiments to bring into light the energy conservation and the efficiency of the INC method by comparing with different classical methods from the literature throught representative contact problems.
description: To appear
Sviluppare la consapevolezza morfologica: linee guida per un intervento didattico
Creators: name: Piccinin, Sabrina
name: Dal Maso, Serena
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Morphological awareness; teaching lexicon; lexical morphology

description: The present paper discusses the principles that inspired a teaching intervention aimed at fostering middle school pupils’ morphological awareness, defined as the ability to reflect on words’ internal structure and to manipulate morphological components. Morphological awareness has in fact been acknowledged to positively impact on vocabulary growth and reading comprehension. In our paper we outline the main principles on which our intervention was grounded. Specifically, we highlight the importance of providing morphologically complex words in meaningful and engaging contexts; promoting an inductive approach to the analysis of word structure and meaning; proposing activities which make morphological patterns and sublexical constituents less abstract and which encourage morphological problem-solving strategies.
description: Studi di glottodidattica, V. 7, N. 3 (2022)
Role of ionizing background on the statistics of metal absorbers in hydrodynamical simulations
Creators: name: Mallik, Sukanya
name: Srianand, Raghunathan
name: Maitra, Soumak
name: Gaikwad, Prakash
name: Khandai, Nishikanta
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the statistical properties of O VI, C IV, and Ne VIII absorbers at low-$z$ (i.e., $z<0.5$) using Sherwood simulations with "WIND" only and "WIND+AGN" feedback and Massive black simulation that incorporates both "WIND" i.e. outflows driven by stellar feedback and AGN feedbacks. For each simulation, by considering a wide range of metagalactic ionizing UV background (UVB), we show the statistical properties such as distribution functions of column density ($N$), $b$-paramerer and velocity spread ($ΔV_{90}$), the relationship between $N$ and $b$-parameter and the fraction of Lya absorbers showing detectable metal lines as a function of $N$(H I) are influenced by the UVB used. This is because UVB changes the range in density, temperature, and metallicity of gas contributing to a given absorption line. For simulations considered here, we show the difference in some of the predicted distributions between different simulations is similar to the one obtained by varying the UVB for a given simulation. Most of the observed properties of O VI absorbers are roughly matched by Sherwood simulation with "WIND+AGN" feedback when using the UVB with a lower O VI ionization rate. However, this simulation fails to produce observed distributions of C IV and fraction of H I absorbers with detectable metals. Therefore, in order to constrain different feedback processes and/or UVBs, using observed properties of H I and metal ions, it is important to perform simultaneous analysis of various observable parameters.
description: 21 pages, 11 figures, 3 tables, accepted in MNRAS
Saturation in inclusive production beyond leading logarithm accuracy
Creators: name: Stasto, Anna M.
name: Zaslavsky, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review recent progress on the calculations on the inclusive forward hadron production within the saturation formalism. After introducing the concept of perturbative parton saturation and nonlinear evolution we discuss the formalism for the forward hadron production at high energy in the leading and next-to-leading order. Numerical results are presented and compared with the experimental data on forward hadron production in $dA$ and $pA$. We discuss the problem of the negativity of the NLO cross section at high transverse momenta, study its origin in detail and present possible improvements which include the corrected kinematics and the suitable choice of the rapidity cutoff.
description: 42 pages, 18 figures. Review submitted to International Journal of Modern Physics A
Francesca Gallina, "Itinerari di formazione: spunti di riflessione per i docenti di lingue seconde", Edizioni ETS, Pisa 2021
Creators: name: Coppola, Daria
Publisher: name: Studi di glottodidattica
Year: 2023

description: Not available
description: Studi di glottodidattica, V. 7, N. 3 (2022)
Desarrollo de una metodología útil en la obtención de extractos y fracciones activas procedentes de semillas de mammea americana y tabernaemontana cymosa contra larvas del mosquito aedes aegypti
Creators: name: Guarniza Méndez, Javier
name: Piedrahta Támara, Rocío
Publisher: name: Universidad de Cartagena
Year: 2014
Subjects: Medicamentos orgánicos - Estudio
Microorganismos
Plantas medicinales - Análisis
Plantas medicinales
Botánica médica

description: Tesis (Químico Farmacéutico),-- Universidad de Cartagena. Facultad Ciencias Farmacéuticas, 2014
description: En este estudio se compararon los extractos obtenidos por dos métodos de extracción que son: maceración y soxhlet a semillas de dos especie vegetales conocidas como M. americana y T. cymosa. Una vez obtenidos los extractos se les realizaron ensayos de actividad larvicida y monitorizaciones por TLC a cero, treinta y cuarenta y cinco días luego de la extracción.
Aspects of the low-energy constants in the chiral Lagrangian for charmed mesons
Creators: name: Du, Meng-Lin
name: Guo, Feng-Kun
name: Meißner, Ulf-G.
name: Yao, De-Liang
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the numerical values of the low-energy constants in the chiral effective Lagrangian for the interactions between the charmed mesons and the lightest pseudoscalar mesons, the Goldstone bosons of the spontaneous breaking of chiral symmetry for QCD. This problem is tackled from two sides: estimates using the resonance exchange model, and positivity constraints from the general properties of the $S$-matrix including analyticity, crossing symmetry and unitarity. These estimates and constraints are compared with the values determined from fits to lattice data of the scattering lengths. Tensions are found, and possible reasons are discussed. We conclude that more data from lattice calculations and experiments are necessary to fix these constants better. As a by-product, we also estimate the coupling constant $g_{DDa_2}$, with $a_2$ the light tensor meson, via the QCD sum rule approach.
description: 26 pages, 5 figures, 4 tables
Anisotropic spin-current spectroscopy of ferromagnetic superconducting gap symmetries
Creators: name: Funaki, Hiroshi
name: Yamakage, Ai
name: Matsuo, Mamoru
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a microscopic theory of tunneling spin transport at the magnetic interface between a ferromagnetic insulator and a ferromagnetic superconductor (FSC) driven by ferromagnetic resonance. We show that the spin susceptibilities of the FSC can be extracted from the spin currents by tuning the easy axis of the FSC, and thus the spin currents can be a probe for the symmetries of the spin-triplet Cooper pairing. Our results will offer a route to exploiting the synergy of magnetism and superconductivities for spin devices.
The smallest chimera states
Creators: name: Maistrenko, Yuri
name: Brezetsky, Serhiy
name: Jaros, Patrycja
name: Levchenko, Roman
name: Kapitaniak, Tomasz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We demonstrate that chimera behavior can be observed in small networks consisting of three identical oscillators, with mutual all-to-all coupling. Three different types of chimeras, characterized by the coexistence of two coherent oscillators and one incoherent oscillator (i.e. rotating with another frequency) have been identified, where the oscillators show periodic (two types) and chaotic (one type) behaviors. Typical bifurcations at the transitions from full synchronization to chimera states and between different types of chimeras have been described. Parameter regions for the chimera states are obtained in the form of Arnold tongues, issued from a singular parameter point. Our analysis suggests that chimera states can be observed in small networks, relevant to various real-world systems.
description: 5 pages, 4 figures
Effect of age and pregnancy on the murine melanocortin system in the female reproductive system
Creators: name: Berruien, Nasrin
Publisher: name: University of Westminster
Year: 2019

description: The five melanocortin receptors (MC (1-5)) are part of the G-coupled protein receptor (GPCR) family and have been reported to have a role in controlling appetite, modulating inflammation and stress response. The melanocortin receptor accessory proteins (MRAP1 and 2) influence MC receptor transport and signalling. The MCs are activated by proopiomelanocortin (POMC) derivatives: alpha-, beta-, and gamma-melanocyte stimulating hormones and adrenocorticotrophic hormone; while agouti signalling peptide (ASP) and agouti-related protein (AgRP) antagonise the peptide activity. The MCs were previously detected in the male mouse reproductive system, and their expression levels were found to be influenced by age. This thesis aims to investigate the expression of the MC system in the female mouse reproductive system and to determine the influence of age and pregnancy on the expression levels of MCs, accessory proteins, POMC and AgRP. The gene expression of the MC system in the reproductive axis using RT-qPCR revealed the differential MC expression in the female mouse hypothalamus, pituitary gland, ovary and uterus. Age influenced the expression of MC5 and POMC, whilst pregnancy altered the expression of MC2, MC4 and MC5. This research reports, for the first time, the characterisation of MRAP1 expression in the hypothalamus and the pituitary gland. The chromogenic RNA in situ hybridisation method (RNAscope®) enabled MC3, MC5 and MRAP2 localisation in the hypothalamus, in the preoptic (rostral and medial) areas and arcuate nucleus. Those areas are known to contain the gonadotropin-releasing hormone (GnRH) neuronal network in the female mouse hypothalamus. The RNAscope® studies also detected the expression of MC3 and MRAP2 in the gonadotrophs and the somatotrophs of the mouse anterior pituitary gland; these findings imply a modulatory role of MC3 in the anterior pituitary cellular network. The expression of MC3, MC5 and MRAP2 was influenced by age and pregnancy. The coexpression of MC3 and MRAP2 in the hypothalamus and the anterior pituitary gland, implicate the potential regulation of MC3 responsiveness by MRAP2. An in vitro cell culture model of GPCR signalling “PRESTO-Tango” assay investigated the regulation of MC3 by the MRAPs and revealed a significant increase in the potency of MC3 to ACTH (1-39), and NDP-a-MSH MC3 in the presence of MRAP1. These studies also show a reduction in sensitivity of MC3 to ACTH (1-39) with 1:1 co-expression of MC3: MRAP2 whilst a 1:10 MC3: MRAP2 expression ratio increased the sensitivity of MC3 to both ACTH (1-39) and NDP-a-MSH. The data obtained in this thesis indicates that the members of the MC system are in close association within areas controlling female reproduction and that the MC system expression is affected by age and pregnancy. Finally, this research reports the regulation of MC3 by both MRAP1 and MRAP2 in vitro.
Giant spin-orbit splitting of point defect states in monolayer WS$_2$
Creators: name: Li, Wun-Fan
name: Fang, Changming
name: van Huis, Marijn A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin-orbit coupling (SOC) effect has been known to be profound in monolayer pristine transition metal dichalcogenides (TMDs). Here we show that point defects, which are omnipresent in the TMD membranes, exhibit even stronger SOC effects and change the physics of the host materials drastically. In this Article we chose the representative monolayer WS\sub{2} slabs from the TMD family together with seven typical types of point defects including monovacancies, interstitials, and antisites. We calculated the formation energies of these defects, and studied the effect of spin-orbit coupling (SOC) on the corresponding defect states. We found that the S monovacancy (V\sub{S} ) and S interstitial (adatom) have the lowest formation energies. In the case of V\sub{S} and both of the W\sub{S and W\sub{S2} antisites, the defect states exhibit giant splitting up to 296 meV when SOC is considered. Depending on the relative position of the defect state with respect to the conduction band minimum (CBM), the hybrid functional HSE will either increase the splitting by up to 60 meV (far from CBM), or decrease the splitting by up to 57 meV (close to CBM). Furthermore, we found that both the W\sub{S} and W\sub{S2} antisites possess a magnetic moment of 2 $μ_{B}$ localized at the antisite W atom and the neighboring W atoms. All these findings provide new insights in the defect behavior under SOC point to new possibilities for spintronics applications for TMDs.
description: 8 pages, 6 figures