cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Lack of Evidence for Global Ram-pressure Induced Star Formation in the Merging Cluster Abell 3266
Creators: name: Henriksen, Mark J.
name: Dusek, Scott
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have selected Abell 3266 to search for ram-pressure induced star formation as a global property of a merging cluster. Abell 3266 (z = 0.0594) is a high mass cluster that features a high velocity dispersion, an infalling subcluster near to the line of sight, and a strong shock front. These phenomena should all contribute to making Abell 3266 an optimum cluster to see the global effects of RPS induced star formation. Using archival X-ray observations and published optical data, we cross-correlate optical spectral properties ([OII, H$β$]), indicative of starburst and post starburst, respectively with ram-pressure, $ρ$v$^{2}$, calculated from the X-ray and optical data. We find that post-starburst galaxies, classified as E+A, occur at a higher frequency in this merging cluster than in the Coma cluster and at a comparable rate to intermediate redshift clusters. This is consistent with increased star formation due to the merger. However, both starburst and post-starburst galaxies are equally likely to be in a low or high ram pressure environment. From this result we infer that the duration of the starburst phase must be very brief so that: (1) at any time only a small fraction of the galaxies in a high ram pressure environment show this effect, and (2) most post-starburst galaxies are in an environment of low ram pressure due too their continued orbital motion in the cluster.
A Glimpse of Arithmetic Dynamics
Creators: name: Grady, Ryan E.
name: Poston, Mark
Publisher: name: arXiv
Year: 2019
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics

description: In this note, we offer a palatable introduction to the field of arithmetic dynamics. That is, we study the patterns that arise when iterating a polynomial map. This note is accessible to those who have taken an introductory proof based course and some linear algebra; the appendix utilizes abstract algebra.
Deceptive Reinforcement Learning for Privacy-Preserving Planning
Creators: name: Liu, Zhengshang
name: Yang, Yue
name: Miller, Tim
name: Masters, Peta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: In this paper, we study the problem of deceptive reinforcement learning to preserve the privacy of a reward function. Reinforcement learning is the problem of finding a behaviour policy based on rewards received from exploratory behaviour. A key ingredient in reinforcement learning is a reward function, which determines how much reward (negative or positive) is given and when. However, in some situations, we may want to keep a reward function private; that is, to make it difficult for an observer to determine the reward function used. We define the problem of privacy-preserving reinforcement learning, and present two models for solving it. These models are based on dissimulation -- a form of deception that `hides the truth'. We evaluate our models both computationally and via human behavioural experiments. Results show that the resulting policies are indeed deceptive, and that participants can determine the true reward function less reliably than that of an honest agent.
Innovazioni del Conceptual Framework for Financial Reporting
Creators: name: Azzali, Stefano
name: Marinoni, Marco Angelo
name: Mazza, Tatiana
Publisher: name: Economia Aziendale Online
Year: 2019

description: Obiettivo principale del presente contributo è di fornire un primo apprezzamento alle innovazioni introdotte dal Framework for Financial Reporting pubblicato dallo IASB nel 2018, a distanza di circa 30 anni dalla prima versione. Tenuto conto della letteratura che aveva in passato commentato le precedenti versioni del Conceptual Framework dello IASB, questo è uno dei primi contributi che, oltre a richiamare la portata innovativa della finalità e delle caratteristiche qualitative dei bilanci, si spinge a proporre valutazioni sulle innovazioni inerenti ai confini dei bilanci, alla definizione dei componenti del bilancio e alla classificazione dei criteri di valutazione
description: Economia Aziendale Online, Vol 10, No 2 (2019): SPECIAL ISSUE - The multidimensional content of Economia Aziendale [2 of 3]
A database of spectral energy distributions of progenitors of core-collapse supernovae
Creators: name: Li, Zhongmu
name: Mao, Caiyan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: This paper presents a database of the spectroscopic- and photometric- spectral energy distributions (spec-SEDs and phot-SEDs) of the progenitors of core-collapse supernovae (CCSNe). Both binary- and single-star progenitors are included in the database. The database covers the initial metallicity ($Z$) range of 0.0001--0.03, mass range of 8--25 \dsm{}, binary mass ratio range of 0--1, and orbital period range of 0.1--10000\,days. The low-resolution spec-SEDs and phot-SEDs of single- and binary-star CCSN progenitors are included in the database. These data can be used for studying the basic parameters, e.g., metallicity, age, initial and final masses of CCSN progenitors. It can also be used for studying the effects of different factors on the determination of parameters of CCSN progenitors. When the database is used for fitting the SEDs of binary-star CCSN progenitors, it is strongly suggested to determine the metallicity and orbital period in advance, while it is not necessary for single-star progenitors.
description: 25 pages,14 figures, submitted to RAA
Coastal imbalance: generation of oceanic Kelvin waves by atmospheric perturbations
Creators: name: Vanneste, Jacques
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The response of a semi-infinite ocean to a slowly travelling atmospheric perturbation crossing the coast provides a simple example of the breakdown of nearly geostrophic balance induced by a boundary. We examine this response in the linear shallow-water model at small Rossby number $\varepsilon \ll 1$. Using matched asymptotics we show that a long Kelvin wave, with $O(\varepsilon^{-1})$ length scale and $O(\varepsilon)$ amplitude relative to quasigeostrophic response, is generated as the perturbation crosses the coast. Accounting for this Kelvin wave restores the conservation of mass which is violated in the quasigeostrophic approximation.
I punti cardinali nell’immaginario europeo (Roma, 7 e 8 aprile 2022)
Creators: name: Lucidi, Lavinia
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2023

description: Giovedì 7 e venerdì 8 aprile 2022 l’Accademia la Colombaria di Firenze ha organizzato il convegno “I punti cardinali nell’immaginario europeo”. L’evento, articolato in quattro sessioni e coordinato da Laura Cassi e Adele Dei, ha visto la partecipazione di numerosi studiosi, intervenuti durante le due giornate attraverso l’esposizione di contributi volti ad indagare la questione dei punti cardinali da prospettive plurime. Ciascuno di essi ha provato a declinare il tema rifacendosi al proprio ambito disciplinare e ai propri interessi di ricerca, veicolando teorie e considerazioni sul tema.
description: Semestrale di studi e ricerche di geografia, N. 1 (2023): Critical toponimy: practices of (re)naming and the power to trasnform time into space
Machine Learning on Neutron and X-Ray Scattering
Creators: name: Chen, Zhantao
name: Andrejevic, Nina
name: Drucker, Nathan
name: Nguyen, Thanh
name: Xian, R Patrick
name: Smidt, Tess
name: Wang, Yao
name: Ernstorfer, Ralph
name: Tennant, Alan
name: Chan, Maria
name: Li, Mingda
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Neutron and X-ray scattering represent two state-of-the-art materials characterization techniques that measure materials' structural and dynamical properties with high precision. These techniques play critical roles in understanding a wide variety of materials systems, from catalysis to polymers, nanomaterials to macromolecules, and energy materials to quantum materials. In recent years, neutron and X-ray scattering have received a significant boost due to the development and increased application of machine learning to materials problems. This article reviews the recent progress in applying machine learning techniques to augment various neutron and X-ray scattering techniques. We highlight the integration of machine learning methods into the typical workflow of scattering experiments. We focus on scattering problems that faced challenge with traditional methods but addressable using machine learning, such as leveraging the knowledge of simple materials to model more complicated systems, learning with limited data or incomplete labels, identifying meaningful spectra and materials' representations for learning tasks, mitigating spectral noise, and many others. We present an outlook on a few emerging roles machine learning may play in broad types of scattering and spectroscopic problems in the foreseeable future.
description: 56 pages, 12 figures. Feedback most welcome
Landau and dynamical instabilities of Bose-Einstein condensates with superfluid flow in a Kronig-Penney potential
Creators: name: Danshita, Ippei
name: Tsuchiya, Shunji
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the elementary excitations of Bose-Einstein condensates in a one-dimensional periodic potential and discuss the stability of superfluid flow based on the Kronig-Penney model. We analytically solve the Bogoliubov equations and calculate the excitation spectrum. The Landau and dynamical instabilities occur in the first condensate band when the superfluid velocity exceeds certain critical values, which agrees with the result of condensates in a sinusoidal potential. It is found that the onset of the Landau instability coincides with the point where the perfect transmission of low-energy excitations is forbidden, while the dynamical instability occurs when the effective mass is negative. It is well known that the condensate band has a peculiar structure called swallowtail when the periodic potential is shallow compared to the mean field energy. We find that the upper side of the swallowtail is dynamically unstable although the excitations have the linear dispersion reflecting the positive effective mass.
description: 6 pages, 2 figures, Proceedings of the International Symposium on Quantum Fluids and Solids (QFS2006)
Geopolitica. Metodi e concetti di Barbara Loyer (a cura di Giuseppe Bettoni)
Creators: name: Boria, Edoardo
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2023

description: Dice bene Giuseppe Bettoni, curatore di questa edizione italiana: «in Italia tutti, o quasi, confondono [Geopolitica] con Relazioni Internazionali». Peraltro, con dichiarato disappunto dei cultori della seconda (nell’ordine, non nel rango scientifico), che evidentemente si percepiscono monopolisti di consulenze governative e apparizioni radiotelevisive anche se poi non disdegnano di usare il termine Geopolitica/Geopolitics nei loro corsi universitari (portano questo nome 17 insegnamenti ufficialmente inseriti nei programmi degli atenei italiani tenuti da docenti di settori non geografici, con un uso crescente da indurre a ritenere che saliranno ulteriormente in futuro https://www.ageiweb.it/archivio-nl/geopolitica/). Dalla mia prospettiva di geografo, tutta questa attenzione alla Geopolitica dall’esterno della Geografia contiene elementi contraddittori: positivi se si guarda all’interesse riscosso da un campo di studi che porta fin nel nome un’inequivocabile matrice geografica, ma anche negativi se si riflette sull’inevitabile traviamento prodotto da colleghe e colleghi che pur mostrando sensibilità verso il fattore spaziale non dispongono sempre di specifica esperienza nel maneggiarlo.
description: Semestrale di studi e ricerche di geografia, N. 1 (2023): Critical toponimy: practices of (re)naming and the power to trasnform time into space
Coextension of scalars in operad theory
Creators: name: Drummond-Cole, Gabriel C.
name: Hackney, Philip
Publisher: name: arXiv
Year: 2019
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 18M60, 18A40, 55P48, 18M85

description: The functor between operadic algebras given by restriction along an operad map generally has a left adjoint. We give a necessary and sufficient condition for the restriction functor to admit a right adjoint. The condition is a factorization axiom which roughly says that operations in the codomain operad can be written essentially uniquely as operations in arity one followed by operations in the domain operad.
description: 40 pages
From Discourse to Narrative: Knowledge Projection for Event Relation Extraction
Creators: name: Tang, Jialong
name: Lin, Hongyu
name: Liao, Meng
name: Lu, Yaojie
name: Han, Xianpei
name: Sun, Le
name: Xie, Weijian
name: Xu, Jin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Current event-centric knowledge graphs highly rely on explicit connectives to mine relations between events. Unfortunately, due to the sparsity of connectives, these methods severely undermine the coverage of EventKGs. The lack of high-quality labelled corpora further exacerbates that problem. In this paper, we propose a knowledge projection paradigm for event relation extraction: projecting discourse knowledge to narratives by exploiting the commonalities between them. Specifically, we propose Multi-tier Knowledge Projection Network (MKPNet), which can leverage multi-tier discourse knowledge effectively for event relation extraction. In this way, the labelled data requirement is significantly reduced, and implicit event relations can be effectively extracted. Intrinsic experimental results show that MKPNet achieves the new state-of-the-art performance, and extrinsic experimental results verify the value of the extracted event relations.
description: 11 pages
Determining atmospheric conditions at the terminator of the hot-Jupiter HD209458b
Creators: name: Sing, David K.
name: Vidal-Madjar, A.
name: Etangs, A. Lecavelier des
name: Desert, J. -M.
name: Ballester, G.
name: Ehrenreich, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a theoretical model fit to the HST/STIS optical transit transmission spectrum of HD209458b. In our fit, we use the sodium absorption line profile along with the Rayleigh scattering by H_2 to help determine the average temperature-pressure profile at the planetary terminator, and infer the abundances of atomic and molecular species. The observed sodium line profile spans an altitude range of ~3,500 km, corresponding to pressures between ~0.001 and 50 mbar in our atmospheric models. We find that the sodium line profile requires either condensation into sodium sulfide or ionization, necessary to deplete atomic sodium only at high altitudes below pressures of ~3 mbar. The depletion of sodium is supported by an observed sudden abundance change, from 2 times solar abundance in the lower atmosphere to 0.2 solar or lower in the upper atmosphere. Our findings also indicate the presence of a hot atmosphere near stratospheric altitudes corresponding to pressures of 33 mbar, consistent with that of the observed dayside temperature inversion. In addition, we find a separate higher altitude temperature rise is necessary within both the condensation and ionization models, corresponding to pressures below ~0.01 mbar. This hot higher altitude temperature indicates that absorption by atomic sodium can potentially probe the bottom of the thermosphere, and is possibly sensitive to the temperature rise linked to atmospheric escape.
description: 11 pages, 4 figures, accepted to Astrophysical Journal
Student ideas about scientists and their work
Creators: name: Myrtle, Raymond Peter
Publisher: name: University of British Columbia
Year: 2011

description: Students in a summer work experience in university science and engineering laboratories were interviewed before, and near the end, of their three week placement to find their ideas about scientists and their work. The study indicates that the friendliness of the people was a significant feature of the scientist's setting for all the students. Although all but one of the seven boys mentioned elements of the task or working with equipment first when discussing significant features of the experience, they all commented on the friendliness of the people. However, for all five girls and one of the boys, the friendliness of the people was the most significant feature of the experience and little was said about the task or working with equipment. Before the placement the students were unsure of the friendliness of the scientists, and anticipated that scientists had serious and grave dispositions. Many thought the atmosphere of the laboratory would be formal, while others held a variety of ideas about the laboratory's formality. Scientists' work was thought to be demanding, requiring dedicated, hardworking, single-minded, serious persons who worked abnormal hours. Following the placement, the students were relieved to find that 'scientists were friendly'. In addition they found that the people in a scientist's setting were informal, that they were 'not serious' and were often 'joking around'. The students' initial idea that a scientist's work is demanding was confirmed. Following the placement the students thought that scientists needed to be dedicated and serious about their work, but like other professionals, scientists sometimes needed to work 'abnormal hours'. While scientists did concentrate on the job, they were not 'thinking day and night only about their work'. However, the students thought that becoming a scientist took more effort than other similar careers. There was no significant change in career choices as result of the experience. Based on the results of this study it is recommended that in order to improve students' views of science, teachers and others should emphasize that scientists are friendly, informal, intelligent, normal people, and that there are a range of work roles in science requiring various levels of education, effort and commitment.
Climate Change and Open Grazing impact on Agricultural Production in Benue State, Nigeria.pdf
Creators: name: Sheidu, Comfort
name: Olayiwola Patrick, Hosea
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 410103
subject: Human impacts of climate change and human adaptation

description: While climate change has been devastating, its impacts have forced nomadic migration from core northern Nigeria and beyond to the Middle Belt and Southern regions, leading to the normalisation of open grazing and the attendant eruption of herders/farmers' conflicts. We designed this paper to critically examine the climate change impact in Nigeria with a focus on Benue state Nigeria; a state considered the 'food basket of the nation. It seeks to explore the extent to which the combined impacts of climate change and open grazing affect food security.
Fracture Toughness of Crystalline Solids
Creators: name: Langer, J. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper describes an attempt to construct a first-principles theory of the fracture toughness of crystalline solids. It is based on the thermodynamic dislocation theory (TDT), which starts with the assertion that dislocations in solids must obey the second law of thermodynamics. A second starting assumption is that fracture is initiated when the tip of a notch is driven to undergo a sharpening instability. The results of this analysis are developed in comparison with measurements by Gumbsch and colleagues of the notch toughness of both predeformed and non-predeformed tungsten crystals. The theory includes a mathematical conjecture regarding tip dynamics at small dislocation densities. Nevertheless, its predictions agree quantitatively with the experimental data, including both brittle and ductile fracture, over a wide range of temperatures, loading rates, and initial conditions.
description: 13 pages, 10 figure
Scattering matrix for current-current deformations of the (2,2s+1) RSOS models
Creators: name: Pugai, Y.
name: Shabetnik, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study (2,2s+1) RSOS lattice models deformed by the current-current operator. Solving the deformed Bethe ansatz equations for the model in the regime III we find explicit expressions for the ground state energy as well as for the energy, the momentum and the scattering matrix of the breather-like excitations. In the scaling limit we get an additional confirmation to the proposal that the bi-local deformations are a lattice analogue of the TT perturbations of integrable massive QFTs proposed by Smirnov and Zamolodchikov.
Il cammino di un geografo, un geografo in cammino. Scritti in onore di Gino De Vecchis (a cura di) Riccardo Morri, Daniela Pasquinelli d’Allegra e Cristiano Pesaresi
Creators: name: Cerreti, Claudio
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2023

description: Un bel volume, ricco e interessante, per ricordare e onorare un «cammino» ricco e intenso come è stato, ed è tuttora, quello di Gino De Vecchis. Gino De Vecchis è certamente noto a tutti i geografi italiani, soprattutto per l’appassionata azione nel campo della didattica della Geografia, nonché della promozione della disciplina in tutti gli ambiti formativi e comunicativi. Un’azione che lo ha visto entrare assai per tempo nei ranghi dell’Associazione Italiana Insegnanti di Geografia, fino a ricoprire per molti anni il ruolo di presidente nazionale, e in quel contesto cogliere e promuovere instancabilmente, e sempre dando prova di grande equilibrio e senso politico, occasioni di approfondimento, sensibilizzazione, divulgazione, confronto, negoziato, e anche di polemica quando la polemica pubblica si è resa ineludibile.
description: Semestrale di studi e ricerche di geografia, N. 1 (2023): Critical toponimy: practices of (re)naming and the power to trasnform time into space
The nature of the eccentric doubled-lined eclipsing binary system KIC 2306740 with Kepler space photometry
Creators: name: Koçak, D.
name: Yakut, K.
name: Southworth, J.
name: Eggleton, P. P.
name: İçli, T.
name: Tout, C. A.
name: Bloemen, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a detailed study of KIC 2306740, an eccentric double-lined eclipsing binary system. Kepler satellite data were combined with spectroscopic data obtained with the 4.2 m William Herschel Telescope (WHT). This allowed us to determine precise orbital and physical parameters of this relatively long period (P=10.3 d) and slightly eccentric, ($e=0.3$) binary system. The physical parameters have been determined as $M_1 = 1.194\pm0.008$ M$_{\odot}$, $M_2 = 1.078\pm0.007$ M$_{\odot}$, $R_1 = 1.682\pm0.004$ R$_{\odot}$, $R_2 = 1.226\pm0.005$ R$_{\odot}$, $L_1 = 2.8\pm0.4$ L$_{\odot}$, $L_2 = 1.8\pm0.2$ L$_{\odot}$ and orbital seperation $a = 26.20\pm0.04$ R$_{\odot}$ through simultaneous solutions of Kepler light curves and of the WHT radial velocity data. Binarity effects were extracted from the light curve in order to study intrinsic variations in the residuals. Five significant and more than 100~combination frequencies were detected. We modeled the binary system assuming non-conservative evolution models with the Cambridge STARS (TWIN) code and we show evolutionary tracks of the components in the $\log L - \log T$ plane, the $\log R - \log M$ plane and the $\log P - \rm age$ plane for both spin and orbital periods together with eccentricity $e$ and $\log R_1$. The model of the non-conservative processes in the code led the system to evolve to the observed system parameters in roughly $5.1 $ Gyr.
description: 9 pages, 6 figures, 7 tables. Accepted for publication in ApJ
Large heat-capacity jump in cooling-heating of fragile glass from kinetic Monte Carlo simulations based on a two-state picture
Creators: name: Lee, Chun-Shing
name: Deng, Hai-Yao
name: Yip, Cho-Tung
name: Lam, Chi-Hang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The specific heat capacity $c_v$ of glass formers undergoes a hysteresis when subjected to a cooling-heating cycle, with a larger $c_v$ and a more pronounced hysteresis for fragile glasses than for strong ones. Here, we show that these experimental features, including the unusually large magnitude of $c_v$ of fragile glasses, are well reproduced by kinetic Monte Carlo and equilibrium study of a distinguishable particle lattice model (DPLM) incorporating a two-state picture of particle interactions. The large $c_v$ in fragile glasses is caused by a dramatic transfer of probabilistic weight from high-energy particle interactions to low-energy ones as temperature decreases.
description: 11 pages, 12 figures
La misura del paesaggio. Il viaggio topografico di Pierre-Antoine Clerc, Capitano del Genio napoleonico (1770-1843) di Luisa Rossi
Creators: name: Rombai, Leonardo
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2023

description: Siamo davanti ad uno studio di lunghissimo corso, che mette a frutto tanti anni di lavoro basato su una immensa documentazione: ovvero su ricche fonti originali, quasi sempre manoscritte e inedite, però assai disperse – essendo esse conservate in 20 archivi, biblioteche e musei di Francia (non solo di Parigi) e d'Italia (Spezia, Porto Venere, Genova, Firenze e Roma) – e su oltre 500 titoli bibliografici in larghissima misura transalpini; documenti e studi sempre scandagliati con esegesi e cura esemplari. L'opera non costituisce un semplice studio biografico – come si potrebbe desumere dal sottotitolo – sul capitano Pierre-Antoine Clerc e sulla sua vita tecnico-professionale e umana (oltre che sulla brigade topographique di tecnici ossia topografi-cartografi-geodeti e artisti-disegnatori-pittori dell'esercito napoleonico, che egli ebbe il merito gradualmente di creare e plasmare), personaggio fino ad ora quasi sconosciuto ma «di assoluto rilievo nella Storia della Cartografia», vissuto tra Rivoluzione e Restaurazione, come scrive nella Presentazione il Comandante dell'IGM Pietro Tornabene.
description: Semestrale di studi e ricerche di geografia, N. 1 (2023): Critical toponimy: practices of (re)naming and the power to trasnform time into space
L’evoluzione dei sistemi di controllo aziendale: dal controllo di gestione al controllo sulla governance
Creators: name: Provasi, Roberta
name: Guizzetti, Chiara
Publisher: name: Economia Aziendale Online
Year: 2019

description: La ricerca è finalizzata alla rivisitazione dell’evoluzione dei sistemi di controllo aziendali al fine di attestare come i fondamentali del controllo sono sempre coerenti con le caratteristiche della “cultura del controllo”. Il contributo, dopo aver evidenziato le diverse direttrici secondo cui si sono evoluti i controlli aziendali e precisamente il “controllo contabile “, definito anche come forma di “controllo esterno” ed il “controllo aziendale” o come “controllo interno”, approfondisce il ruolo svolto dal controllo sui sistemi di corporate governance risultato decisivo per il recupero della fiducia di molti stakeholders, dopo le molte crisi finanziarie che hanno caratterizzato gli ultimi anni. Le attività di controllo sulla corporate governane rappresentano un forma evoluta di controllo che recepisce la nuova dimensione culturale fondata sull’etica della responsabilità in grado di contemperare i diversi interesse assumendo due diverse articolazioni ossia quella della funzione di controllo interno e del controllo esterno.
description: Economia Aziendale Online, Vol 10, No 2 (2019): SPECIAL ISSUE - The multidimensional content of Economia Aziendale [2 of 3]
The strategy and the evolution of benchmarking methodology: the case of Rank Xerox-Fuji
Creators: name: Riva, Angelo
name: Pilotti, Luciano
Publisher: name: Economia Aziendale Online
Year: 2019

description: The paper examines the benchmarking strategy of Rank Xerox- Fuji. Based on the past studies, we develop a specific detailed research questions: 1) What are the main innovation factors of the benchmarking strategy of Rank Xerox Fuji? ; 2) What is its specificity of benchmarking and the evolution for improving the performance during the time? The main aim of this study is to fill this gap of knowledge by analysing this interesting case. The paper offers a unique description of a successful strategy implementation of benchmarking in Rank Xerox-Fuji for improving the performances in the long time.
description: Economia Aziendale Online, Vol 10, No 2 (2019): SPECIAL ISSUE - The multidimensional content of Economia Aziendale [2 of 3]
Distributionally Robust Optimization: A Review
Creators: name: Rahimian, Hamed
name: Mehrotra, Sanjay
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The concepts of risk-aversion, chance-constrained optimization, and robust optimization have developed significantly over the last decade. Statistical learning community has also witnessed a rapid theoretical and applied growth by relying on these concepts. A modeling framework, called distributionally robust optimization (DRO), has recently received significant attention in both the operations research and statistical learning communities. This paper surveys main concepts and contributions to DRO, and its relationships with robust optimization, risk-aversion, chance-constrained optimization, and function regularization.
Targeted metabolomics reveals differential biological effects of nanoplastics and nanoZnO in human lung cells
Creators: name: Lim, Swee Ling
name: Ng, Cheng Teng
name: Zou, Li
name: Lu, Yonghai
name: Chen, Jiaqing
name: Bay, Boon Huat
name: Shen, Han-Ming
name: Ong, Choon Nam
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Virology
subject: Computational Biology

description: Engineered nanomaterials are of public health concern. Recently, there has been an increasing attention on the toxicity of nanoplastics and nanoZnO because of their increasing utilization and presence in the environment. However, knowledge of their toxicological behavior and metabolic interactions with the cellular machinery that determine their potential health effects are extremely limited. In this study, the cellular uptake, cytotoxic effects, and metabolic responses of bronchus epithelial (BEAS-2B) cells exposed to nanopolystyrene (nanoPS) and a widely used metallic nanoparticle, nanoZnO, were investigated using a tandem mass spectrometry-based metabolomics approach. The results revealed that even with low cytotoxicity, these nanoparticles (NPs) affected cell metabolism. NanoPS exposure showed autophagic- and endoplasmic reticulum (ER) stress-related metabolic changes such as increased in amino acids and tricarboxylic acid cycle (TCA) intermediate metabolites, a process known to play a critical role in regulating cell resistance to cytotoxic effects. Both metabolomics profiling and ER-stress pathway, together with quantitative real-time RT-polymerase chain reaction (qRT-PCR) analyses, demonstrated that autophagy was reciprocally regulated to couple metabolic and transcriptional reprograming. In contrast, nanoZnO-induced ROS-mediated cell death was associated with mitochondrial dysfunction and interference in regulating energy metabolism. Collectively, these two types of NPs were observed to cause perturbations albeit differential in cellular metabolism associated with their cytotoxic effects. Our findings provided an in depth understanding of metabolic changes influenced by two different types of NPs, with contrasting molecular mechanisms for the adverse effects observed.
RETRACTED PAPER: Les modes de contrôle en contexte micro-financier dans les pays du sud : une étude exploratoire
Creators: name: Mètogbéwè Franciscain E. AGBAZA
name: Denise M. NGONDI ATANGANA
name: Judith B. GLIDJA
Publisher: name: Zenodo
Year: 2023

description: Le présent article met en perspective les différents modes de contrôle que les responsables de microfinance des pays du Sud mettent en œuvre pour piloter leur performance. Il revisite de prime abord les arguments de l'information théorique validant l'existence des typologies des modes de contrôle, souvent confrontés à d'importants facteurs de contingence. Il croise ensuite ces arguments avec les discours des acteurs de 15 IMF du Bénin et du Cameroun pour montrer que le contrôle par les résultats, le contrôle par les comportements, le contrôle culturel, le contrôle interactif, le contrôle par les risques de crédit et le contrôle réglementaire sont spécifiques à ces dernières. Ces résultats démontrent que les performances des opérateurs dépendent aussi bien des modes de contrôle que des facteurs de contingence.
Ανδρέας Σαγκούνα, μητροπολίτης Τρανσυλβανίας: η ζωή και το έργο του
Creators: name: Στυλιαράς, Γεώργιος Μ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Ουνία
Σερβική Ιεραρχία
Blaj
Carlovit
Sibiu
Θεολογικό-Παιδαγωγικό Ινστιτούτο
Archidiecezane

description: Στόχος του διδακτορικού ήταν η έρευνα σχετικά με τη ζωή και το έργο του μητροπολίτη Τρανσυλβανίας Ανδρέα Σαγκούνα. Για το σκοπό αυτό ερευνήσαμε το αρχείο του μητροπολίτη που σώζεται στο Sibiu της Ρουμανίας και ενημερωθήκαμε βιβλιογραφικά από ξενόγλωσσα περισσότερο συγγράμματα. Ερευνήσαμε σχετικά με την ίδρυση της μητροπόλεως Τρανσυλβανίας και την ιστορία της μέχρι την εποχή του Α. Σαγκούνα. Στην συνέχεια εξετάσαμε τη ζωή και τη δράση του, εκκλησιαστική, πολιτιστική, συγγραφαική, πολιτική. Ο μητροπολίτης Α. Σαγκούνα, ήταν πνευματικός άνθρωπος, φορέας της ορθόδοξης ρουμανικής ευσέβειας, ποιμενάρχης με πνεύμα διαρκούς θυσίας και προσφοράς για το ποίμνιό ου, αλλά και έξυπνος διπλωμάτης. Υπήρξε μια από τις πιο εξέχουσες προσωπικότητες της Ορθόδοξης Εκκλησίας της Ρουμανίας
description: The aim of the PhD thesis was the research with respect to the life and work of the Transylvania Metropolite Andreas Sagkouna. To this end, we studied the Metropolite's records that are kept in Sibiu, Romania and we acquired information from relevant, mostly foreign, literature. We studied the establishment of the Transylvania Metropolis and its history until the time of A. Sagkouna. Then, we studied his life and his ecclesiastical, cultural, writing and political activities. The Metropolite, A. Sagkouna was a spiritual person, agent of the Orthodox Romanian piety, a shepherd with a spirit of continuous sacrifice and giving for his church but also a witted diplomat. He was one of the most distinguished figures of the Orthodox Church of Romania
Recent Progress of the Computational 2D Materials Database (C2DB)
Creators: name: Gjerding, M. N.
name: Taghizadeh, A.
name: Rasmussen, A.
name: Ali, S.
name: Bertoldo, F.
name: Deilmann, T.
name: Holguin, U. P.
name: Knøsgaard, N. R.
name: Kruse, M.
name: Manti, S.
name: Pedersen, T. G.
name: Skovhus, T.
name: Svendsen, M. K.
name: Mortensen, J. J.
name: Olsen, T.
name: Thygesen, K. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The C2DB is a highly curated open database organizing a wealth of computed properties for more than 4000 atomically thin two-dimensional (2D) materials. Here we report on new materials and properties that were added to the database since its first release in 2018. The set of new materials comprise several hundred monolayers exfoliated from experimentally known layered bulk materials, (homo)bilayers in various stacking configurations, native point defects in semiconducting monolayers, and chalcogen/halogen Janus monolayers. The new properties include exfoliation energies, Bader charges, spontaneous polarisations, Born charges, infrared polarisabilities, piezoelectric tensors, band topology invariants, exchange couplings, Raman- and second harmonic generation spectra. We also describe refinements of the employed material classification schemes, upgrades of the computational methodologies used for property evaluations, as well as significant enhancements of the data documentation and provenance. Finally, we explore the performance of Gaussian process-based regression for efficient prediction of mechanical and electronic materials properties. The combination of open access, detailed documentation, and extremely rich materials property data sets make the C2DB a unique resource that will advance the science of atomically thin materials.
description: 30 pages, 26 figures
Η Ορθόδοξη Εκκλησία της Εσθονίας στο παρελθόν και στο παρόν και η σχέση της με το Οικουμενικό Πατριαρχείο
Creators: name: Ulm, Μελέτιος Kalmar
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Εκκλησιαστική Αυτονομία
Επίσκοπος Πλάτων
Autonomos
Bishop Platon

description: Η διάδοση της ορθόδοξης πίστης στην Εσθονία ανάγεται στην περίοδο του 11ου αιώνα. Γενικά 19ος αιώνας σήμανε στους κόλπους της Ορθόδοξης Εκκλησίας στην Εσθονία εθνική και εκπαιδευτική πρόοδο. Το 1917 ιδρύεται η Επισκοπή της Εσθονίας, χειροτονείται πρώτος εσθονός αρχιερέας ο Πλάτων. Αυτονομία χορηγήθηκε στην Εσθονική Ορθόδοξη Εκκλησία αρχικά το (1920) από το Πατριαρχείο Μόσχας και αργότερα(1923) από το Οικουμενικό Πατριαρχείο. Από τότε η Εσθονική Εκκλησία γεύεται την συνεχή εξέλιξη. Δυστυχώς η Εκκλησία εκμηδενίστηκε ως θεσμός κατά τον πενηντάχρονο σοβιετικό ζυγό. Η νομική συνέχεια και η πνευματική σχέση της Εσθονικής Εκκλησίας συνεχίστηκε ωστόσο στη διασπορά όπου ο Προκαθήμενός της ήταν αναγκασμένος να αυτοεξοριστεί με ένα μέρος του ποιμνιό του το 1944. Το 1933 η Σύνοδος της Εσθονικής Εκκλησίας στη διασπορά καταχώρησε ξανά τον Καταστατικό Χάρτη της 1935 και έγινε κληρονόμος όλων των προνομίων της προπολεμικής Εσθονικής Εκκλησίας. Το 1966 το Οικουμενκό Πατριαρχείο ενεργοποίησε ξανά το Τόμο της Αυτονομίας
description: The spread of orthodoxy in Estonia dates back to the 11th century. In general the 19th century was a period of national and educational progress of the Orthodox Church in Baltic region. The Meeting of the Holy Synod of Ecumenical Patriarchate on 1923 ended positively with Τομος on concession of ecclesiastical Autonomy. From that time onwards, the church witnessed continual progress. In the period of World War II the Estonian Orthodox Church as institution was annuled. In 1996 the Ecumenical Throne activated the Tomos of Estonian Orthodox Church, from 1923
Το δελτίο παραδόσεως και η σιδηροδρομική φορτωτική στη διεθνή χερσαία μεταφορά εμπορευμάτων: ο ρόλος τους στη διεθνή μεταφορά
Creators: name: Μήτκα, Καλλιόπη Α.
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Διεθνής οδική μεταφορά
Διεθνής σιδηροδρομική μεταφορά
Εγγραφα μεταφοράς
CMR
CIM
Transportation documents

description: Αντικείμενο της διδακτορικής διατριβής είναι το δίκαιο που διέπει τα έγγραφα που εκδίδονται στη διεθνή χερσαία μεταφορά εμπορευμάτων, το δελτίο παραδόσεως CMR και η σιδηροδρομική φορτωτική των ενιαίων κανόνων COTIF-CIM. Η εργασία περιλαμβάνει εισαγωγή και δύο κύρια μέρη από τα οποία το πρώτο αναφέρεται στο δελτίο παραδόσεως CMR και το δεύτερο στη σιδηροδρομική φορτωτική τόσο υπό τους κανόνες COTIF-CIM 1980 όσο και υπό τη νέα COTIF 1999. Στον επίλογο γίνεται αναφορά στις προσπάθειες για την καθιέρωση ηλεκτρονικού δελτίου παραδόσεως και ηλεκτρονικής φορτωτικής και στις δυσκολίες που προκύπτουν λόγω της ισχύουσας νομοθεσίας. Ειδικότερα, στην εισαγωγή επισημαίνεται η στενή λειτουργική σχέση που υπάρχει ανάμεσα στη σύμβαση πώλησης από απόσταση και τη σύμβαση μεταφοράς στις δύο αυτές συμβάσεις. Στα δύο κύρια μέρη αναλύονται τα ακόλουθα θέματα σχετικά με τα δύο έγγραφα, η έκδοση και η κατάρτιση τους, η αποδεικτική τους λειτουργία, η συστατική λειτουργία ορισμένων εγγραφών τους, η αξιογραφική τους λειτουργία και τέλος η λειτουργία τους στη διαδοχική μεταφορά. Στόχος της διατριβής είναι να διακρίνει τις επιμέρους λειτουργίες των εγγράφων αυτών τόσο για τη σύμβαση μεταφοράς όσο και για τη σύμβαση πώλησης για την εκπλήρωση της οποίας συνάπτεται η πρώτη
description: The topic pf this thesis is related to the transport documentation for the international carriage of goods by roads and by rail according to the International Conventions CMR and COTIF-CIM. The next of the thesis is divided in introduction and two main parts. The text of the thesis is divided in introduction and two main parts. The first part refers to the consignment note in the contract of carriage by road, while the second partconcentrates on the consignment note under the priovisions of COTIF-CIM 1980 and the new COTIF 1999. Finally, in the conclusion reference is made to the efforts for the implementetion of cinelectionic waybill and the difficulties that arise due to the existing european legislation, In the introduction the author underlines the close relation between, from one side the contrace of distent sale and the contract of carriage and from the other side, the contracting parties. The two main parts consist of an analysis of the following topics related to the two documents 1)the issuing and the drawing up of the consignment notes, 2)their function as a document of proof, 3)the constitutive effect of certain entries on the consignment notes, 4)their function as an negotiable instrument and as a document of title, 5)their function for the successive carriage
Imaging spin-wave damping underneath metals using electron spins in diamond
Creators: name: Bertelli, Iacopo
name: Simon, Brecht G.
name: Yu, Tao
name: Aarts, Jan
name: Bauer, Gerrit E. W.
name: Blanter, Yaroslav M.
name: van der Sar, Toeno
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin waves in magnetic insulators are low-damping signal carriers that could enable a new generation of spintronic devices. The excitation, control, and detection of spin waves by metal electrodes is crucial for interfacing these devices to electrical circuits. It is therefore important to understand metal-induced damping of spin-wave transport, but characterizing this process requires access to the underlying magnetic films. Here we show that spins in diamond enable imaging of spin waves that propagate underneath metals in magnetic insulators, and then use this capability to reveal a 100-fold increase in spin-wave damping. By analyzing spin-wave-induced currents in the metal, we derive an effective damping parameter that matches these observations well. We furthermore detect buried scattering centers, highlighting the technique's power for assessing spintronic device quality. Our results open new avenues for studying metal - spin-wave interaction and provide access to interfacial processes such as spin-wave injection via the spin-Hall effect.
Relativistic calculations of the chemical properties of the superheavy element with $Z=119$ and its homologues
Creators: name: Tupitsyn, I. I.
name: Malyshev, A. V.
name: Glazov, D. A.
name: Kaygorodov, M. Y.
name: Kozhedub, Y. S.
name: Savelyev, I. M.
name: Shabaev, V. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Relativistic calculations of the electronic structure of the superheavy element of the eighth period $-$ eka-francium ($Z=119$) and its homologues, which form the group of alkali metals, are performed in the framework of the configuration-interaction method and many-body perturbation theory using the basis of the Dirac-Fock-Sturm orbitals (DFS). The obtained values of the ionization potentials, electron affinities, and root-mean-square radii are compared with the corresponding values calculated within the non-relativistic approximation. A comparison with the available experimental data and the results of previous theoretical calculations is given as well. The analysis of the obtained results indicates a significant influence of the relativistic effects for the francium and eka-francium atoms, which leads to a violation of the monotonic behaviour of the listed above chemical properties as a function of the alkaline-element atomic number. In addition, the quantum electrodynamics corrections to the ionization potentials are evaluated by employing the model Lamb-shift operator (QEDMOD).
description: 4 figures, 6 tables
Internationalization and innovation performance: the role of family management
Creators: name: Gjergji, Rafaela
name: Lazzarotti, Valentina
name: Visconti, Federico
name: Saha, Prasenjit
Publisher: name: Economia Aziendale Online
Year: 2019

description: The aim of this paper is to contribute to a better understanding of the relationships among internationalization, family-managed firms and innovation by adopting the theoretical perspective of the resource based-view theory (RBV). Leveraging on the relevance of the firms’ set of resources and in particular on the unique bundle of resources in family firms, specifically the intangible resources, the paper examines how internationalization and family involvement in the management independently, as well as jointly, influence the innovation performance. We provide empirical evidence by using a panel data of roundly 9,000 Spanish manufacturing firms via regression analysis. Firstly, results show that both internationalization and family involvement in the management have a positive effect on innovation performance. Second, by exploring the moderation role of family management, it critically emerges as positive and significant further factor, which emphasizes the effect of internationalization on innovation. Finally, conclusion, limitations and an agenda for further research are discussed.
description: Economia Aziendale Online, Vol 10, No 2 (2019): SPECIAL ISSUE - The multidimensional content of Economia Aziendale [2 of 3]