cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Loop Calculus in Statistical Physics and Information Science
Creators: name: Chertkov, Michael
name: Chernyak, Vladimir Y.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Considering a discrete and finite statistical model of a general position we introduce an exact expression for the partition function in terms of a finite series. The leading term in the series is the Bethe-Peierls (Belief Propagation)-BP contribution, the rest are expressed as loop-contributions on the factor graph and calculated directly using the BP solution. The series unveils a small parameter that often makes the BP approximation so successful. Applications of the loop calculus in statistical physics and information science are discussed.
description: 4 pages, submitted to Phys.Rev.Lett. Changes: More general model, Simpler derivation
FARM COMPUTER ADOPTION IN THE GREAT PLAINS
Creators: name: Hoag, Dana L.
name: Ascough, James C.
name: Frasier, W. Marshall
name: Hoag, Dana L.
name: Ascough, James C.
name: Frasier, W. Marshall
Publisher: name: Unknown
Year: 1999
Subjects: subject: Farm Management
subject: adoption
subject: agriculture
subject: computers
subject: farmers
subject: Great Plains
subject: logit

description: Computers change rapidly, yet the last survey on computer use in agriculture was in 1991. We surveyed Great Plains producers in 1995 and used logit analysis to characterize adopters and non-adopters. About 37% of these producers use computers which is consistent with the general population. We confirmed previous surveys emphasizing the importance of education, age/experience, and other farm characteristics on adoption. However, we also found that education and experience may no longer be a significant influence. Future research and education could focus on when and where computers are most needed, and therefore when adoption is most appropriate.
EVALUATING THE PERFORMANCE OF AGRICULTURAL BANK MANAGEMENT: THE IMPACT OF STATE REGULATORY POLICIES
Creators: name: Armah, Bernard Kaku Ndarku
name: Park, Timothy A.
name: Lovell, C.A. Knox
name: Armah, Bernard Kaku Ndarku
name: Park, Timothy A.
name: Lovell, C.A. Knox
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural Finance
subject: generalized Malmquist index
subject: interstate banking
subject: productivity change

description: We evaluate agricultural bank management performance, focusing on the impacts of interstate banking laws on productivity change. The generalized Malmquist productivity index decomposes productivity change into technological change, technical efficiency change, and change in scale economies. While managerial productivity rose from 1982 to 1991, states that adopt the most liberal interstate banking laws experienced the greatest improvement in productivity. Large agricultural banks were more efficient in states that had more liberalized interstate banking laws while small agricultural banks fared better in states with more restrictive laws.
Global residues for sparse polynomial systems
Creators: name: Soprunov, Ivan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 14M25, 52B20

description: We consider families of sparse Laurent polynomials f_1,...,f_n with a finite set of common zeroes Z_f in the complex algebraic n-torus. The global residue assigns to every Laurent polynomial g the sum of its Grothendieck residues over the set Z_f. We present a new symbolic algorithm for computing the global residue as a rational function of the coefficients of the f_i when the Newton polytopes of the f_i are full-dimensional. Our results have consequences in sparse polynomial interpolation and lattice point enumeration in Minkowski sums of polytopes.
description: Typos corrected, reference added, 13 pages, 5 figures. To appear in JPAA
Molecular theory of Langevin dynamics for active self-diffusiophoretic colloids
Creators: name: Robertson, Bryan
name: Schofield, Jeremy
name: Gaspard, Pierre
name: Kapral, Raymond
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Active colloidal particles that are propelled by a self-diffusiophoretic mechanism are often described by Langevin equations that are either postulated on physical grounds or derived using the methods of fluctuating hydrodynamics. While these descriptions are appropriate for colloids of micrometric and larger size, they will break down for very small active particles. A fully microscopic derivation of Langevin equations for self-diffusiophoretic particles powered by chemical reactions catalyzed asymmetrically by the colloid is given in this paper. The derivation provides microscopic expressions for the translational and rotational friction tensors, as well as reaction rate coefficients appearing in the Langevin equations. The diffusiophoretic force and torque are expressed in terms of nonequilibrium averages of fluid fields that satisfy generalized transport equations. The results provide a description of active motion on small scales where descriptions in terms of coarse grained continuum fluid equations combined with boundary conditions that account for the presence of the colloid may not be appropriate.
description: 15 pages, 2 figures
Ανάδειξη του πολιτιστικού αποθέματος της πόλης της Λιβαδειάς. Πρόταση για μια πολιτιστική διαδρομή
Creators: name: Χονδρού, Νίκη Σωτηρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Ανάδειξη πολιτιστικού αποθέματος
Πολιτιστική διαδρομή
Λιβαδειά
Promoting cultural reserve
Cultural route
Livadia

description: Αντικείμενο της παρούσας εργασίας είναι τα ζητήματα διαχείρισης της πολιτιστικής κληρονομιάς. Ειδικότερα, μελετούμε την περίπτωση της Λιβαδειάς, μιας μικρής επαρχιακής πόλης και εξετάζουμε τις δυνατότητες που μας προσφέρει το πολιτιστικό απόθεμα της πόλης μας για σχεδιασμό μιας πολιτιστικής διαδρομής. Απευθυνόμαστε σε ένα ευρύ κοινό που περιλαμβάνει την τοπική κοινωνία και κάθε δυνητικό επισκέπτη της πόλης. Στοχεύουμε οι διαφορετικές ομάδες κοινού να αποκτήσουν εκείνες τις εμπειρίες και τις γνώσεις ώστε να κατανοήσουν τη σπουδαιότητα της πολιτιστικής κληρονομιάς, να ευαισθητοποιηθούν πάνω σε ζητήματα προστασίας και ανάδειξης, να διαμορφώσουν άποψη και κριτική σκέψη. Η εργασία οργανώνεται σε τρία κεφάλαια. Στο πρώτο, γίνεται μια θεωρητική προσέγγιση των επιμέρους ζητημάτων και διασαφήνιση όρων και ορισμών. Στο δεύτερο κεφάλαιο, παρουσιάζονται τα δεδομένα μας, δηλαδή η πόλη της Λιβαδειάς και τα μνημεία εκείνα που θα εντάξουμε στον σχεδιασμό μας. Στο τρίτο κεφάλαιο, παρουσιάζεται ο προγραμματισμός και ο σχεδιασμός της πολιτιστικής διαδρομής με ανάλυση της κεντρικής ιδέας και του σκεπτικού που διέπει τη διαδρομή μας.
description: The subject of this thesis is the issues of cultural heritage management. In particular, we study the case of Livadia, a small provincial town, and examine the possibilities that our town's cultural reserve offered for planning a cultural route. We address a wide audience that includes the local community and every potential visitor to the city. We aim for the different groups of the public to acquire those experiences and knowledge to understand the importance of cultural heritage, to raise awareness of issues of protection and promoting, to form opinions and critical thinking. The thesis is organized into three chapters. In the first one, a theoretical approach is made to the issues and clarification of terms and definitions. In the second, our data is presented, i.e. the city of Livadia and the monuments that we will include in our planning. In the third chapter, the planning and design of the cultural route is presented, with an analysis of the central idea and reasoning behind our route.
description: Σε συνεργασία με: Παιδαγωγικό Δημοτικής Εκπαίδευσης (Πανεπιστήμιο Δυτικής Μακεδονίας)
Τεχνική D2 λεμφαδενικού καθαρισμού σε κακοήθεια στομάχου
Creators: name: Δεδοπούλου, Παρασκευή Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Γαστρικός καρκίνος
Λεμφαδενικός καθαρισμός
D2 λεμφαδενικός καθαρισμός
Gastric cancer
Lymphadenectomy
D2 lymphadenectomy

description: Ο Καρκίνος στομάχου αποτελεί μείζονος σημασίας ζήτημα στην χειρουργική ογκολογία. Η εμφάνιση συμπτωμάτων συνήθως υποδηλώνει προχωρημένη νόσο και συνδέει τον καρκίνο στομάχου με υψηλό ποσοστό θνησιμότητας παγκοσμίως. Η χειρουργική αντιμετώπιση σε συνδυασμό με λεμφαδενικό καθαρισμό αποτελεί τον ακρογωνιαίο λίθο στην πολύτροπή θεραπεία στους γαστρικούς καρκίνους. H έκταση του λεμφαδενικού καθαρισμού αποτελεί ένα αμφιλεγόμενο θέμα μεταξύ των χειρουργών των Δυτικών χωρών και των χειρουργών της Ανατολικής Ασίας. Στην παρούσα εργασία γίνεται αναφορά στην σημασία του D2 λεμφαδενικού καθαρισμού στην χειρουργική αντιμετώπιση εξαιρέσιμων όγκων. Επιπροσθέτως, παρέχεται μια κατανοητή περιγραφή του ορισμού, της επιδημιολογίας, των αιτιολογικών παραγόντων και της ταξινόμησης του καρκίνου του στομάχου. Σκοπός είναι η ανάδειξη της σημασίας του D2 λεμφαδενικού καθαρισμού και η αναφορά στις αιτίες που δεν εφαρμόζεται ως μέθοδος ρουτίνας στον γαστρικό Καρκίνο, όπως στην Ασία.
description: Gastric cancer is a significant challenge in surgical oncology, mainly attributed to the advanced stage of the disease by the time symptoms manifest, leading to high mortality rates worldwide. Surgical treatment combined with lymphadenectomy constitutes a foundational element within the multimodal therapeutic approach for gastric cancers. The extent of lymph node dissection remains a subject of contention and divergence between surgeons in Western regions and those in East Asian. This thesis emphasizes the importance of D2 lymphadenectomy in the surgical treatment of resectable gastric cancers. Additionally, it provides a comprehensive description of the definition, epidemiology, etiology, and classification of gastric cancer. The primary objective of this paper is to highlight the significance of D2 lymphadenectomy in the surgical management of gastric cancer and to address any issues that makes it unfavorable to the surgeons of the West.
Probabilities in the Bousso-Polchinski multiverse
Creators: name: Schwartz-Perlov, Delia
name: Vilenkin, Alexander
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using the recently introduced method to calculate bubble abundances in an eternally inflating spacetime, we investigate the volume distribution for the cosmological constant $Λ$ in the context of the Bousso-Polchinski landscape model. We find that the resulting distribution has a staggered appearance which is in sharp contrast to the heuristically expected flat distribution. Previous successful predictions for the observed value of $Λ$ have hinged on the assumption of a flat volume distribution. To reconcile our staggered distribution with observations for $Λ$, the BP model would have to produce a huge number of vacua in the anthropic range $ΔΛ_A$ of $Λ$, so that the distribution could conceivably become smooth after averaging over some suitable scale $δΛ\llΔΛ_A$.
description: 21 pages, 7 figures Minor changes made
Mass Dependence of Vacuum Energy
Creators: name: Fulling, S. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The regularized vacuum energy (or energy density) of a quantum field subjected to static external conditions is shown to satisfy a certain partial differential equation with respect to two variables, the mass and the "time" (ultraviolet cutoff parameter). The equation is solved to provide integral expressions for the regularized energy (more precisely, the cylinder kernel) at positive mass in terms of that for zero mass. Alternatively, for fixed positive mass all coefficients in the short-time asymptotics of the regularized energy can be obtained recursively from the first nontrivial coefficient, which is the renormalized vacuum energy.
description: 8 pages, RevTeX; v.2 has minor updates and format changes
ASSESSING CHANGES IN SOIL EROSION RATES: A MARKOV CHAIN ANALYSIS
Creators: name: Skaggs, Rhonda K.
name: Ghosh, Soumen
name: Skaggs, Rhonda K.
name: Ghosh, Soumen
Publisher: name: Unknown
Year: 1999
Subjects: subject: Land Economics/Use
subject: conservation
subject: Markov
subject: National Resources Inventory
subject: policy
subject: soil erosion

description: Markov chain analysis (one-step and long-run) is applied to the National Resources Inventory (NRI) database to evaluate changes in wind-based soil erosion rates over time. The research compares changes in soil erosion rates between NRI sample sites with and without applied conservation practices for a random sample of Great Plains counties. No significant differences between sites are found for half of the counties evaluated. The effectiveness and efficiency of conservation policies are thus questioned in light of these research results.
LEADING INDICATORS OF REGIONAL COTTON ACREAGE RESPONSE: STRUCTURAL AND TIME SERIES MODELING RESULTS
Creators: name: Houston, Jack E.
name: McIntosh, Christopher S.
name: Stavriotis, Paul A.
name: Turner, Steven C.
name: Houston, Jack E.
name: McIntosh, Christopher S.
name: Stavriotis, Paul A.
name: Turner, Steven C.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Crop Production/Industries
subject: resurgent cotton production
subject: cotton acreage

description: Resurgent cotton production compels better acreage forecasts for planning seed, chemical, and other input requirements. Structural models describe leading acreage response indicators, and forecasts are compared to time-series models. Cotton price, loan rate, deficiency payments, lagged corn acreage, the PIK program, and previous cotton yield significantly influence cotton acreage response.
Are all maximally entangled states pure?
Creators: name: Cavalcanti, Daniel
name: Brandao, Fernando G. S. L.
name: Cunha, Marcelo O. Terra
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study if all maximally entangled states are pure through several entanglement monotones. In the bipartite case, we find that the same conditions which lead to the uniqueness of the entropy of entanglement as a measure of entanglement, exclude the existence of maximally mixed entangled states. In the multipartite scenario, our conclusions allow us to generalize the idea of monogamy of entanglement: we establish the \textit{polygamy of entanglement}, expressing that if a general state is maximally entangled with respect to some kind of multipartite entanglement, then it is necessarily factorized of any other system.
description: 5 pages, 1 figure. Proof of theorem 3 corrected e new results concerning the asymptotic regime included
Phantom Field from Conformal Invariance
Creators: name: Hassaine, Mokhtar
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We establish a correspondence between a conformally invariant complex scalar field action (with a conformal self-interaction potential) and the action of a phantom scalar field minimally coupled to gravity (with a cosmological constant). In this correspondence, the module of the complex scalar field is used to relate conformally the metrics of both systems while its phase is identified with the phantom scalar field. At the level of the equations, the correspondence allows to map solution of the conformally non-linear Klein-Gordon equation with vanishing energy-momentum tensor to solution of a phantom scalar field minimally coupled to gravity with cosmological constant satisfying a massless Klein-Gordon equation. The converse is also valid with the advantage that it offers more possibilities owing to the freedom of rewriting a metric as the conformal transformation of another metric. Finally, we provide some examples of this correspondence.
description: 5 pages, two columns
Per un’est-etica del futuro sostenibile. Una tecno-cultura dell'arte per il cambiamento, tra formazione e ricerca scientifica
Creators: name: Balzola, Andrea
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Il tema del futuro sostenibile è indissolubilmente legato a quello dei diritti umani e ambientali, le istituzioni formative, di ogni ordine e grado, devono contribuire a sviluppare nelle giovani generazioni una reale e attiva consapevolezza di tali diritti. Per far questo è necessario innovare radicalmente i modelli educativi, integrando i media digitali all'internodi una nuova filosofia e arte dell'educazione e non in una prospettiva puramente tecnocratica, come quella che rischia di affermarsi con l'applicazione della didattica a distanza senza una vera riforma del sistema scolastico. Tale rinnovamento non può prescindere da un cambiamento più generale del paradigma antropocentrico che da millenniconsidera la natura al servizio dell'uomo, come se questi ne fosse l'unico padrone. L'arte sempre più sinestetica, interattiva e relazionale, si assume oggi la responsabilità etica di immaginare, stimolare, provocare il pensiero critico e di diventare motore attivo di questi cambiamenti necessari, urgenti, irrimandabili.
description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
Coherence of Associativity in Categories with Multiplication
Creators: name: Brin, Matthew G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Category Theory (math.CT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: primary 18D10, secondary 20F05

description: The usual coherence theorem of MacLane for categories with multiplication assumes that a certain pentagonal diagram commutes in order to conclude that associativity isomorphisms are well defined in a certain practical sense. The practical aspects include creating associativity isomorphisms from a given one by tensoring with the identity on either the right or the left. We show, by reinspecting MacLane's original arguments, that if tensoring with the identity is restricted to one side, then the well definedness of constructed isomorphisms follows from naturality only, with no need of the commutativity of the pentagonal diagram. This observation was discovered by noting the resemblance of the usual coherence theorems with certain properties of a finitely presented group known as Thompson's group F. This paper is to be taken as an advertisement for this connection.
description: 8 pages, to appear in Journal of Pure and Applied Algebra
SEZIONE VIII - FORMAZIONE E NUOVI MEDIA
Creators: name: Sansone, Vincenzo
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
HugForUs, opera di relazione tra persone
Creators: name: Scolari, Federica
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Esplorare nuove forme di socializzazione creando opere d’arte in trasformazione, reinventando la comunicazione, è l’obiettivo di HugForUs. Marco Amedani, l’autore, diventa inventore di strumenti, fornisce dispositivi tecnologici che rendono accessibile a tutti le modalità di progettazione e le forme di partecipazione ideate, in un ideale processo collettivo di creazione. La ridefinizione dello spazio artistico, tramite un’azione collettiva, ampliando le possibilità creative dell’utente, permette di far affiorare le identità “invisibili” nel visibile. Il progetto innesca un processo attivo che passa da individuale a collettivo in una continua evoluzione semantica ed estetica, estendendo le capacità del sog- getto-utente. Superamento dell’identificativo oggetto-arte tramite azioni pubbliche che sfruttano le piattaforme online: il progetto si definisce, utilizzando le parole di Giacomo Verde «opera di relazione tra persone». Amedani è stato in grado di attivare contesti creativi che permettono di attivare di- versi processi di relazione.
description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
Arare la rivoluzione. Una proposta “artivistica” di Instabili Vaganti
Creators: name: Piergiacomi, Enrico
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Nell’impossibilità di continuare l’attività performativa dal vivo, a causa delle misure usate per contrastare il COVID-19, la compagnia Instabili Vaganti ha ha reagito con Lockdown memory. Si tratta di una digital performance che riflette su come la pandemia ha reso evidente il bisogno di un cambiamento radicale delle forme di vita e di una tappa del progetto Beyond Borders, dove artisti, studiosi, attivisti politici si collegano da remoto (e continuano tutt’ora a farlo) per ragionare su come attuare tale tra- sformazione. Il presente articolo esamina Lockdown memory entro le cornici della poetica di Instabili Vaganti e la pratica dell’artivismo. La tesi che verrà sostenuta è che la performance lega attività artistica, l’installazione video e la politica per lanciare i semi di una rivoluzione. L’atto performativo ara il terreno da cui sboccerà un nuovo mondo ed evita il ritorno alla normalità passata: una delle cause delle storture e delleingiustizie che ancora vediamo diffondersi.
description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
SEZIONE VII - ARTIVISMO, COVID-19 E LOCKDOWN
Creators: name: Sansone, Vincenzo
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
New contributions to heavy-quarkonium production
Creators: name: Lansberg, J. P.
name: Cudell, J. R.
name: Kalinovsky, Yu. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reconsider quarkonium production in a field-theoretical setting and we show that the lowest-order mechanism for heavy-quarkonium production receives in general contributions from two different cuts. The first one corresponds to the usual colour-singlet mechanism. The second one has not been considered so far. We treat it in a gauge-invariant manner, and introduce new 4-point vertices, suggestive of the colour-octet mechanism. These new objects enable us to go beyond the static approximation. We show that the contribution of the new cut can be as large as the usual colour-singlet mechanism at high transverse momentum for J/psi. In the psi' case, theoretical uncertainties are shown to be large and agreement with data is possible.
description: 16 pages, 12 figures, LaTeX. References updated, typo fixed, discussion of the scale dependence, minor corrections to the text
Luck, morality, and the meaning of life
Creators: name: Cheung, Pui Kei Eleanor
Publisher: name: University of British Columbia
Year: 2009

description: The main objective of Luck, Morality, and the Meaning of Life is to defend the Kantian version of impartial morality from Bernard Williams' critiques. The thesis begins by exploring the problems luck presents to us. Various philosophical methods which deal with those problems are discussed. The Kantian version of impartial morality is chosen because it not only intends to offer methods that help us transcend the problems luck presents in morality, but also aspires to ultimate justice by urging people to pursue the best good, namely, to be moral, which is open to all. Several of Williams' arguments against impartial morality are then discussed and evaluated. His arguments can be divided into two main streams: (i) the ground project thesis, and (ii) the arguments that resist changes. I believe these arguments try to serve Williams two objectives: (i) impartial morality is argued to be flawed and unfeasible, and (ii) Individualism is advocated. I show that none of Williams' arguments can refute the theory of impartial morality, nevertheless, some of its non-fatal flaws are exposed. I then discuss the Individualistic motive in Williams' arguments. I try to determine whether Williams's Individualistic world is feasible and appealing by considering the issue of adultery as a test case, and by comparing his world with the Kantian one. Williams' world is found to be unstable if his Individualism is universally applied. There is evidence which shows that Williams endorses some form of elitism, and this is perhaps the only way for his world to be feasible, nevertheless, unappealing.
The Middle Finger Response. Crowdworkers of the World United in a Gesture
Creators: name: Segni, Guido
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: The Middle Finger Response (2013) is a curated selection of 300+ spontaneous self- portraits of cloud workers I commissioned travelling around one of the most represan- tive crowdsourcing platform: Amazon Mechanical Turk. All the workers in the selection have been paid about 0.5$ in order to take awebcam picture of themselves showing their face, their context and, ultimately, theirmiddle finger response. It's just a cynical but sincere attempt to establish a dialogue between the artist, the public and the crowd dispersed through the new frontiers of leisure, labour and exploitation in the age of the big cloud. WEB PAGE OF THE INSTALLATION: http://www.crowdworkersoftheworldunite.com
description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
A New Multi-Tracer Approach to Defining the Spiral arm width in the Milky Way
Creators: name: Vallée, Jacques P
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We analyze recent observations of the spiral arm width in the Milky Way, as a function of the galactic radius, and we compare this relation with the prediction from the density wave theory. We use the following method: in each spiral arm, we concentrate on the separation (or offset) between the starforming region (radio masers) near the shock front of a density wave, and the aged star region (diffuse CO gas) near the potential minimum of a density wave; we take this separation between these two tracers as the arm width. New results: we find a typical separation (maser to diffuse CO gas) near 250 +/- 50 pc, and an increase of this separation with galactic radius of about 25 +/- 5 pc per kpc. We note that, as expected, this separation is somewhat smaller than that found earlier between the dust lane and the aged star region. Overall, these results supports the basics of a density wave.
description: 23 pages MS, 7 figures, 3 tables, 33 references, 6600 words, 4 equations. Accepted for publications
Supercurrent-induced temperature gradient across a nonequilibrium SNS Josephson junction
Creators: name: Crosser, M. S.
name: Virtanen, Pauli
name: Heikkilä, Tero T.
name: Birge, Norman O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using tunneling spectroscopy, we have measured the local electron energy distribution function in the normal part of a superconductor-normal metal-superconductor (SNS) Josephson junction containing an extra lead to a normal reservoir. In the presence of simultaneous supercurrent and injected quasiparticle current, the distribution function exhibits a sharp feature at very low energy. The feature is odd in energy, and odd under reversal of either the supercurrent or the quasiparticle current direction. The feature represents an effective temperature gradient across the SNS Josephson junction that is controllable by the supercurrent.
description: 4 pages, 4 figures, corrected typos, added plot to figure 2
[Diary of Charlotte Black]
Creators: name: Black, Charlotte S.
Publisher: name: The University of British Columbia
Year: 2015

description: Handwritten diary of Charlotte Black for the period 1930 to 1933. It describes her day-to-day activities and her experiences as a teacher in Vancouver.
The diary is organized so that each page can include entries for the same date over a three year period. Not all years are explicitly indicated in the text, so the range of dates is an estimate. The entries for the last year are sparse.
title: Renal hydatid disease: A rare case
Creators: name: Saini, Suresh
Publisher: name: EURORAD
Year: 2024
Subjects: subject: Uroradiology & genital male imaging
subject: Abdomen
subject: Kidney
subject: MR-Cholangiography
subject: Cholangiography
subject: Cysts
subject: Clinical Case

description: Clinical History: A 69-year-old woman with an unremarkable medical history sought medical attention due to urinary urgency and right flank pain. Upon physical examination, the patient was afebrile, and palpable fullness was noted in the right upper quadrant of the abdomen and right flank, without associated tenderness.

Mildly elevated direct bilirubin, along with elevated SGOT (serum glutamic oxaloacetic transaminase) and SGPT (serum glutamic pyruvic transaminase), in addition to increased alkaline phosphatase levels noted. In further investigation, serum IgG for echinococcus was seen raised.

description: 69 years, female
Esistere – Resistere – Produrre – Riprodurre - Riprodursi
Creators: name: Zeitgeist, Phoebe
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Questo articolo ripercorre la biografia e la ricerca artistico-politica della Compagnia teatrale Phoebe Zeitgeist. La sua poetica si caratterizza come processo aperto e contaminato dalle arti contemporanee e alla produzione di drammaturgie originali che mettono al centro la critica alle diverse forme del potere, sia che incidano sui vissuti individuali sia sul collettivo. L’indagine della compagnia si risolve nella produzione di lavori che, influenzati da autori come Rainer Werner Fassbinder James Ballard e Antonio Caronia, sono caratterizzati dall’estetica camp, dalla cultura pop e dall’immaginario fantascientifico. Nel 2013 la compagnia teatrale Phoebe Zeitgeist realizza Blut, una fanzine realizzata attraverso il cut’n mix di risorse grafiche e testuali basate su un’estetica anticonsumista e anticapitalista e di bassa fedeltà che si contrappone alla rigorosa scelta dei contenuti. Una forma di autoproduzione che per la Compagnia corrisponde alle pratiche di lotta creativa legate all’artivismo e alla sua declinazione post-punk.
description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
Artivismo in rete. Le beffe degli anni Dieci
Creators: name: Coletti, Martina
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Questo intervento prende le mosse da un articolo uscito sul trimestrale D’ARS nel 2010 dedicato ad alcune operazione artistiche ascrivibili all’ambito del media attivismo di quegli anni in Italia, con particolare riferimento a pratiche, riflessioni critiche e strumenti mutuati dal web e ascrivibili al fenomeno dell’hacktivism e dell’hacking sociale. Il termine “net.art” definisce nel campo dell’arte molti dei lavori trattati. Tra le dinamiche più ricorrenti si ritrova il détournement, l’irriverenza del gesto dada che si insinua negli ingranaggi delle macchine del potere per ridimensionarne la portata e dare spazio all’immaginazione. Il testo ricostruisce il periodopartendo dai netartisti 0100101110101101.org e dalla vicenda del Conflitto di Tirana; piùspecificatamente sul terreno dell’artivismo si ripercorrono alcune delle operazioni condotte da LesLiens Invisible, mentre con AOS – Art Is Open Source si apre il versante della riappropriazione di linguaggi e strumenti.
description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
Room temperature Peierls distortion in small radius nanotubes
Creators: name: Connetable, D.
name: Rignanese, G. -M.
name: Charlier, J. -C.
name: Blase, Xavier
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: By means of {\it ab initio} simulations, we investigate the phonon band structure and electron-phonon coupling in small 4-Ådiameter nanotubes. We show that both the C(5,0) and C(3,3) tubes undergo above room temperature a Peierls transition mediated by an acoustical long-wavelength and an optical $q=2k_F$ phonons respectively. In the armchair geometry, we verify that the electron-phonon coupling parameter $λ$ originates mainly from phonons at $q=2k_F$ and is strongly enhanced when the diameter decreases. These results question the origin of superconductivity in small diameter nanotubes.
description: submitted 21oct2004 accepted 6jan2005 (Phys.Rev.Lett.)
SEZIONE VI - ARTIVISMO E INTERMEDIALITÀ
Creators: name: Sansone, Vincenzo
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
FOOD AID FOR MARKET DEVELOPMENT IN SUB-SAHARAN AFRICA
Creators: name: Abdulai, Awudu
name: Barrett, Christopher B.
name: Hazell, Peter B.R.
name: Abdulai, Awudu
name: Barrett, Christopher B.
name: Hazell, Peter B.R.
Publisher: name: Unknown
Year: 2004
Subjects: Food Security and Poverty
International Relations/Trade

description: Food aid remains significant for food availability in many low-income countries in sub-Saharan Africa, helping to reduce the gap between food consumption needs and supply from domestic production and inventories and commercial imports. Food aid remains a contentious subject, however, and there have been many recent pleas for more effective use of the resource. This study explores how food aid might be used for domestic food market development to facilitate poverty alleviation and economic growth. There are obvious risks to using food aid for market development, just as there have been in using food aid to try to stimulate agricultural development. Because food aid necessarily expands local food supply, it needs to be well targeted if adverse producer price effects are to be avoided. In particular, if food aid can be targeted so as to relieve short-term working capital and transport capacity constraints to the development of downstream processing and distribution capacity in recipient country food marketing channels, for example by helping build farmer cooperative groups, then food aid could have salutary effects on sub-Saharan African agriculture.
Laser microscopy of tunneling magnetoresistance in manganite grain-boundary junctions
Creators: name: Wagenknecht, M.
name: Eitel, H.
name: Nachtrab, T.
name: Philipp, J. B.
name: Gross, R.
name: Kleiner, R.
name: Koelle, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using low-temperature scanning laser microscopy we directly image electric transport in a magnetoresistive element, a manganite thin film intersected by a grain boundary (GB). Imaging at variable temperature allows reconstruction and comparison of the local resistance vs temperature for both, the manganite film and the GB. Imaging at low temperature also shows that the GB switches between different resistive states due to the formation and growth of magnetic domains along the GB. We observe different types of domain wall growth; in most cases a domain wall nucleates at one edge of the bridge and then proceeds towards the other edge.
description: 5 pages, 4 figures; submitted to Phys. Rev. Lett
Artivismo tra smart mob e teatro paesaggio
Creators: name: Budriesi, Laura
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: In questo paper propongo due pratiche di artivismo nate nel XXI secolo: il flash mob ambientalista e il “teatro di paesaggio” del collettivo di ricerca Dom. Scelgo come metodo di analisi la teoria della performance elaborata da Turner e Schechner in cui essa è forma espressiva, nonché strumento di analisi del sociale. Vorrei evidenziare come queste“alleanze di corpi” nello spazio (Butler 2017) usino strategie estetiche, reminiscenze del teatro agit prop e di guerrilla (Milohnić 2005; Loewe 2015) e si alleino ai nuovi media diventando delle smart mob. L’intento di accostare queste azioni al “teatro di paesaggio” di Dom intende mettere in luce “gli usi politici del teatro”(De Marinis 2020) perché in queste performance “simpoietiche”(Haraway 2020) i co-creatori dell’opera sono le forze animali, vegetali e atmosferiche in gradodi ridimensionare e ricollocare l’umano, istanza comune all’attivismo ambientalista.
description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
Nilpotent metric Lie algebras of small dimension
Creators: name: Kath, Ines
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 53C35, 53C50, 17B05

description: In math.DG/0312243 we developed a general classification scheme for metric Lie algebras, i.e. for finite-dimensional Lie algebras equipped with a non-degenerate invariant inner product. Here we determine all nilpotent Lie algebras l with dim l'=2 which are used in this scheme. Furthermore, we classify all nilpotent metric Lie algebras of dimension at most 10.
description: 27 pages, corrections to Prop. 6 and Theorem 1 (classification list)
Frequency-dependent sensitivity of AC elastocaloric effect measurements explored through analytical and numerical models
Creators: name: Straquadine, J. A. W.
name: Ikeda, M. S.
name: Fisher, I. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a comprehensive study of the frequency-dependent sensitivity for measurements of the AC elastocaloric effect by applying both exactly soluble models and numerical methods to the oscillating heat flow problem. These models reproduce the finer details of the thermal transfer functions observed in experiments, considering here representative data for single-crystal Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$. Based on our results, we propose a set of practical guidelines for experimentalists using this technique. This work establishes a baseline against which the frequency response of the AC elastocaloric technique can be compared and provides intuitive explanations of the detailed structure observed in experiments.
description: 15 pages, 10 figures
SECURITY IS LIKE OXYGEN: EVIDENCE FROM UGANDA
Creators: name: Zhang, Xiaobo
name: Zhang, Xiaobo
Publisher: name: Unknown
Year: 2004
Subjects: subject: International Development
subject: Political Economy
subject: Security
subject: Civil Strife
subject: Growth
subject: poverty
subject: Uganda
subject: Africa

description: Since the early 1990s, Uganda has been one of Africas fastest growing countries. However, at the sub-national level, growth has been uneven due to civil conflict in the northern region. Using a panel of household and community level data, this paper examines the links between security and economic growth. It is found that security is a pre-condition for successful economic development and that there is in fact a threshold level of security below which public investments in infrastructure and education have little impact on growth. Only when security exceeds this threshold do public investments stimulate economic growth. Economists and policy advisors living in peaceful countries often prescribe economic policies that hinge on the assumption of good security. In this manner, security, like oxygen, is taken for granted.
Η χειρουργική αντιμετώπιση των νευροενδοκρινικών όγκων του παγκρέατος. Ανασκόπηση της βιβλιογραφίας
Creators: name: Δρογούτη, Μαρία Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Νευροενδοκρινικοί όγκοι
Παγκρεατικοί νευροενδοκρινικοί όγκοι
Χειρουργική αντιμετώπιση
Neuroendocrine tumors
Pancreatic neuroendocrine tumors
Surgical management

description: Οι νευροενδοκρινείς όγκοι του παγκρέατος (ΝΕΤs) είναι μια σπάνια οντότητα με ιδιαίτερη ετερογένεια όσον αφορά τα παθολογοανατομικά και κλινικά χαρακτηριστικά καθώς και με περίπλοκο αλγόριθμο διαχείρισης. Η χειρουργική αντιμετώπιση αποτελεί ακρογωνιαίο λίθο στην αντιμετώπιση. Η παρούσα ανασκόπηση της βιβλιογραφίας αποσκοπεί στην περιγραφή της συγκεκριμένης παθολογίας με έμφαση στη χειρουργική αντιμετώπιση. Παρουσιάζονται ειδικότερα οι ενδείξεις και τα είδη των χειρουργικών επεμβάσεων και οι διαθέσιμες κατευθυντήριες οδηγίες.
description: Neuroendocrine pancreatic tumors (NETs) are rare entities with particular heterogeneity with regards to pathological and clinical features as well as with a complex management algorithm. Surgical treatment is the cornerstone of treatment. The present literature review describes this particular disease with focus on surgical treatment. More specifically, indications, types of surgical operations and available guidelines are presented.
Half-Life of $^{14}$O
Creators: name: Burke, J. T.
name: Vetter, P. A.
name: Freedman, S. J.
name: Fujikawa, B. K.
name: Winter, W. T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We have measured the half-life of $^{14}$O, a superallowed $(0^{+} \to 0^{+})$ $β$ decay isotope. The $^{14}$O was produced by the $^{12}$C($^{3}$He,n)$^{14}$O reaction using a carbon aerogel target. A low-energy ion beam of $^{14}$O was mass separated and implanted in a thin beryllium foil. The beta particles were counted with plastic scintillator detectors. We find $t_{1/2} = 70.696\pm 0.052$ s. This result is $1.5σ$ higher than an average value from six earlier experiments, but agrees more closely with the most recent previous measurement.
description: 10 pages, 5 figures
La lotta per l’arte: politica, attivismo e felicità
Creators: name: Fadda, Simonetta
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Nel bene e nel male, l’arte ha sempre ricadute politiche, ma il legame tra etica ed estetica è spesso scomodo. Nel tempo sono state elaborate strategie raffinatissime per neutralizzarne le potenzialità emancipatorie. L’analisi parte da lontano, dalla “Lotta per l’arte” svoltasi in Germania alla fine degli anni Venti e dalle azioni del GAAG Guerilla Art Action Group, portate avanti dal 1969 in poi, per approdare al presente che ha visto azioni di protesta prendere forma e propagarsi proprio perché costruite intorno a comunicazioni artistiche potenti, come la performance Un violador en tu camino che dal Cile ha fatto il giro del mondo.
description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
EXPLORING REGIONAL DYNAMICS IN SUB-SAHARAN AFRICAN AGRICULTURE
Creators: name: Diao, Xinshen
name: Yanoma, Yukitsugu
name: Diao, Xinshen
name: Yanoma, Yukitsugu
Publisher: name: Unknown
Year: 2003
Subjects: International Development
International Relations/Trade

description: Identifying growth poles in the SSA region, strengthening linkages and generating mutual benefits across African countries is an important part of the strategy to promote agriculture-led growth at the Africa-wide scale. Using agricultural trade data, this study focuses on identifying major countries that play important roles in regional agricultural trade and commodities in which African countries have a comparative advantage and where there is potential for more trade within the region. There are 10 largest traders in the regions either as large agricultural exporters or importers and they seemingly have potential to become growth poles in Africa-wide growth led by promoting agricultural trade. However, at the present, intra-SSA trade only plays a marginal role and that official trade data often significantly underestimate the actual trade flows between countries. In order to avoid historical bias, we focus on the potential trade opportunities by investigating whether a group of commodities in which some countries have a comparative advantage matched with the group of commodities imported by other African countries. We find that foodstuffs are among the most dynamic products in regional agricultural trade, as value of the correlation between the staple good exports and imports is high and doubles over the two observation periods, up from 0.34 in the first period (1990-1995). Poor infrastructure and institutional barriers are among the major reasons constraining African countries to exploit their comparative advantage and strengthen their economic linkages. The model simulations show that opening the EU market is strongly in the common interest of African countries. Reducing African countries own trade barriers, both in agriculture and non-agriculture, can significantly increase intra-regional agricultural trade. However, the benefit of the globalization and agricultural trade liberalization to the African countries would be limited by poor market access conditions such as transportation and other infrastructure. Because of these, many African agricultural commodities can hardly reach domestic and regional markets, or be exported to the world. Without improving the efficiency of these nonagricultural sectors that provide critical inputs or services to agricultural production and trade, it is virtually impossible for the countries of SSA to increase their competitiveness in international markets.
Performing (Art) Institutions. Contro l’autonomia dell’estetico
Creators: name: Caleo, Ilenia
Publisher: name: Connessioni remote. Artivismo_Teatro_Tecnologia
Year: 2021

description: Seguendo il pensiero trans-femminista, partire dalle pratiche consente di riposizionare la relazione tra arte e politica nel contemporaneo, con le sue ombre e ambiguità. Intendendo le arti performative come pratiche, modi del fare umano, narrazioni contro-egemoniche (hooks, 1998; Rancière, 2000), questo paper indaga da un lato le pratiche artistiche che mettono al centro la sperimentazione dei linguaggi e il lavoro di immaginazione politica (Athanasiou, 2016). Dall’altro tenta una ricognizione dell’agire politico di lavorat^ dell’arte che hanno attivato processi di soggettivazione e pratiche istituenti (Ahmed, 2007), a partire da genealogie multiple dagli anni Novanta a oggi in Italia (Tpo, Teatro Valle Occupato, Macao, L’Angelo Mai). L’analisi critica sulle arti live fornisce un punto di osservazione privilegiato da cui leggere le trasformazioni del lavoro contemporaneo nel quadro neoliberista – è proprio l’attività senza opera, improduttiva, performativa, a diventare il paradigma della produzione contemporanea (Virno, 2001).
description: Connessioni remote. Artivismo_Teatro_Tecnologia, Vol 2 No 2 (2021): L’artivismo: forme, esperienze, pratiche e teorie
Controlling quantum state transfer in spin chain with the confined field
Creators: name: Chen, Bing
name: Song, Z.
name: Sun, C. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: As a demonstration of the spectrum-parity matching condition (SPMC) for quantum state transfer, we investigate the propagation of single-magnon state in the Heisenberg chain in the confined external tangent magnetic field analytically and numerically. It shows that the initial Gaussian wave packet can be retrieved at the counterpart location near-perfectly over a longer distance if the dispersion relation of the system meets the SPMC approximately.
description: 9 pages, 8 figures