cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cheilosia pagana
Creators: name: MAZáNEK, Libor
name: VONIČKA, Pavel
name: PREISLER, JiřÍ
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Cheilosia
Cheilosia pagana

description: Cheilosia pagana (Meigen, 1822) Holarktický druh, velmi hojný v lesnatých krajinÁch, kde preferuje vlhčÍ otevřené plochy s vysokobylinnou vegetacÍ. V Jizerských horÁch hojný druh (36 ♂♂, 26 ♀♀), imaga od V. do VIII. Bílý Potok [1a]: 8 ex. Frýdlant [7]: 3 ex. Horní Pertoltice [12]: 1 ex. Krásná Studánka [17]: 2 ex. Liberec-Vesec [20]: 2 ex. Malá Strana PR [21]: 10 ex. Meandry Smědé PR [22b]: 1 ex.; [22c]: 3 ex. Mníšek [24]: 1 ex. Oldřichov v Hájích [28b]: 1 ex.; [28c]: 1 ex. Rašeliniště Jizerky NPR [33b]: 1 ex. Rejdice [35]: 2 ex. Rybí loučky PR [37]: 1 ex. Tichá říčka PP [44]: 20 ex. U Kyselky [46]: 3 ex. Zlatá Olešnice [49a]: 2 ex.
description: Published as part of MAZáNEK, Libor, VONIČKA, Pavel & PREISLER, JiřÍ, 2009, Syrphidae (Diptera) of the Jizerské hory Mts and Frýdlant region (northern Bohemia, Czech Republic), pp. 3-46 in Sborník Severočeského Muzea 27 on page 36, DOI: 10.5281/zenodo.7153554
Contrary Inferences in Consistent Histories and a Set Selection Criterion
Creators: name: Wallden, Petros
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The best developed formulation of closed system quantum theory that handles multiple-time statements, is the consistent (or decoherent) histories approach. The most important weaknesses of the approach is that it gives rise to many different consistent sets, and it has been argued that a complete interpretation should be accompanied with a natural mechanism leading to a (possibly) unique preferred consistent set. The existence of multiple consistent sets becomes more problematic because it allows the existence of contrary inferences (Kent 1997). We analyse the conceptual difficulties that arise from the existence of multiple consistent sets and provide a suggestion for a natural set selection criterion. This criterion does not lead to a unique physical consistent set, however it evades the existence of consistent sets with contrary inferences. The criterion is based on the concept of preclusion and the requirement that probability one propositions and their inferences should be noncontextual. The allowed consistent sets turn-out to be compatible with coevents which are the ontology of an alternative, histories based, formulation.
description: 13 pages. Accepted in Found Phys. V2 expanded after reviewing
Jwst rileva emissione H-alfa all’alba cosmica
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2023

Utilizzando l'immagine più profonda dell'universo a 5.6 micron che sia mai stata prodotta, grazie allo strumento Miri del telescopio spaziale James Webb, un gruppo internazionale di astronomi ha rilevato per la prima volta la riga di emissione H-alfa in singole galassie durante l’epoca di reionizzazione, la cosiddetta alba cosmica. Media Inaf ha intervistato il primo autore dello studio che presto uscirà su ApJ
Dentro la culla
Creators: Edwige Pezzulli
Publisher: name: Media Inaf
Year: 2023

Ogni giovedì su Rai 1 a “Noos - L’avventura della conoscenza”, il programma ideato e condotto da Alberto Angela, l’astrofisica Edwige Pezzulli ci guida nello spazio mostrandoci le più belle immagini riprese dal telescopio James Webb. Ecco quella presentata nella puntata di ieri, 29 giugno 2023
Solvent-free, visible-light photocatalytic alcohol oxidations applying an organic photocatalyst
Creators: name: Obst, Martin
name: König, Burkhard
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: BENZYL ALCOHOL; PHOTOOXIDATION; ACTIVATION; benzylic alcohol; oxidation; photocatalysis; solvent free; visible light
subject: 540 Chemie

description: A method for the solvent-free photocatalytic conversion of solid and liquid substrates was developed, using a novel rod mill apparatus. In this setup, thin liquid films are realized which is crucial for an effective photocatalytic conversion due to the low penetration depth of light in heterogeneous systems. Several benzylic alcohols were oxidized with riboflavin tetraacetate as photocatalyst under blue light irradiation of the reaction mixture. The corresponding carbonyl compounds were obtained in moderate to good yields.
Cheilosia scanica
Creators: name: MAZáNEK, Libor
name: VONIČKA, Pavel
name: PREISLER, JiřÍ
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Cheilosia
Cheilosia scanica

description: Cheilosia scanica (Ringdahl, 1937) Časně jarnÍ druh s dosud nejasným rozšÍřenÍm. Vyskytuje se vzÁcně v horÁch v okolÍ starých jehličnatých lesů s přestÁrlými smrky. Saproxylické larvy pravděpodobně žijÍ ve výronech pryskyřice na kmenech poraněných smrků. Bukovec PR [3d]: 13.VI.2005, 1 ♀.
description: Published as part of MAZáNEK, Libor, VONIČKA, Pavel & PREISLER, JiřÍ, 2009, Syrphidae (Diptera) of the Jizerské hory Mts and Frýdlant region (northern Bohemia, Czech Republic), pp. 3-46 in Sborník Severočeského Muzea 27 on page 36, DOI: 10.5281/zenodo.7153554
Holographic positive energy theorems in three-dimensional gravity
Creators: name: Barnich, Glenn
name: Oblak, Blagoje
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The covariant phase space of three-dimensional asymptotically flat and anti-de Sitter gravity is controlled by well-understood coadjoint orbits of the Virasoro group. Detailed knowledge on the behavior of the energy functional on these orbits can be used to discuss positive energy theorems.
description: 13 pages Latex file, agrees with published version, v2: additional paragraphs and references in the introduction and conclusion sections
Distributed Asynchronous Optimization Framework for the MISO Interference Channel
Creators: name: Wesemann, Stefan
name: Fettweis, Gerhard
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study the distributed optimization of transmit strategies in a multiple-input, single-output (MISO) interference channel (IFC). Existing distributed algorithms rely on stricly synchronized update steps by the individual users. They require a global synchronization mechanism and potentially suffer from the synchronization penalty caused by e.g., backhaul communication delays and fixed update sequences. We establish a general optimization framework that allows asynchronous update steps. The users perform their computations at arbitrary instants of time, and do not wait for information that has been sent to them. Based on certain bounds on the amount of asynchronism that is present in the execution of the algorithm, we are able to characterize its convergence. As illustrated by our numerical results, the proposed algorithm can alleviate communication overloads and is not excessively slowed down by neither communication delays, nor by differences in the computation intervals.
description: IEEE Transactions on Signal Processing, accepted for publication, 16 pages, 8 figures
Neutrini dalla Via Lattea nei ghiacci di IceCube
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2023

Applicando tecniche di machine learning a dieci anni di dati raccolti dall’osservatorio antartico per neutrini IceCube, i ricercatori della IceCube Collaboration hanno ottenuto la prima prova statisticamente significativa dell’esistenza di un’emissione di neutrini provenienti dalle regioni interne della Via Lattea. Il risultato è stato pubblicato oggi su Science
Quasi-quantized Disk Structure around Rotating Neutron Stars
Creators: name: Wang, Joan Jing
name: Chang, Hsiang-Kuang
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In accreting neutron star (NS) low-mass X-ray binary (LMXB) systems, NS accretes material from its low-mass companion via a Keplerian disk. In a viscous accretion disk, inflows orbit the NS and spiral in due to dissipative processes, such as the viscous process and collisions of elements. The dynamics of accretion flows in the inner region of an accretion disk is significantly affected by the rotation of NS. The rotation makes NS, thus the space-time metric, deviate from the originally spherical symmetry, and leads to gravitational quadrupole, on one hand. On the other hand, a rotating NS drags the local inertial frame in its vicinity, which is known as the rotational frame-dragging effect. In this paper, {\bf we investigate the orbital motion of accretion flows of accreting NS/LMXBs and demonstrate that the rotational effects of NS result in a band of quasi-quantized structure in the inner region of the accretion disk, which is different, in nature, from the scenario in the strong gravity of black hole arising from the resonance for frequencies related to epicyclic and orbital motions. We also demonstrate that such a disk structure may account for frequencies seen in X-ray variability, such as quasi-periodic oscillations, and can be a potential promising tool of investigation for photon polarization.
description: 6 pages, no figure, Accepted by IJMPD
Reference point insensitive molecular data analysis
Creators: name: Altenbuchinger, Michael
name: Rehberg, Thorsten
name: Zacharias, Helena
name: Stämmler, Frank
name: Dettmer, Katja
name: Weber, Daniela
name: Hiergeist, Andreas
name: Gessner, Andre
name: Holler, Ernst
name: Oefner, Peter J.
name: Spang, Rainer
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: VERSUS-HOST-DISEASE; STEM-CELL TRANSPLANTATION; LOGISTIC-REGRESSION; VARIABLE SELECTION; C-MYC; REGULARIZATION; MICROBIOME; LASSO;
subject: 610 Medizin

description: Motivation: In biomedicine, every molecular measurement is relative to a reference point, like a fixed aliquot of RNA extracted from a tissue, a defined number of blood cells, or a defined volume of biofluid. Reference points are often chosen for practical reasons. For example, we might want to assess the metabolome of a diseased organ but can only measure metabolites in blood or urine. In this case, the observable data only indirectly reflects the disease state. The statistical implications of these discrepancies in reference points have not yet been discussed. Results: Here, we show that reference point discrepancies compromise the performance of regression models like the LASSO. As an alternative, we suggest zero-sum regression for a reference point insensitive analysis. We show that zero-sum regression is superior to the LASSO in case of a poor choice of reference point both in simulations and in an application that integrates intestinal microbiome analysis with metabolomics. Moreover, we describe a novel coordinate descent based algorithm to fit zero-sum elastic nets.
Ferro liquido, dal cuore della Terra al laboratorio
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2023

Due nuovi esperimenti sono riusciti a ricreare temperature e pressioni estreme per studiare le proprietà del ferro allo stato liquido, così come lo si trova al centro della Terra e di altri pianeti rocciosi, nel Sistema solare e oltre. Sembra che la sua resistività non vari molto al variare della temperatura, e che il suo comportamento segua abbastanza bene le predizioni teoriche anche a pressioni molto elevate
Parallel Lepton Mass Matrices with Texture and Cofactor Zeros
Creators: name: Wang, Weijian
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we investigate the parallel texture structures containing texture zeros in charged lepton mass matrix $M_{l}$ and cofactor zeros in neutrino mass matrix $M_ν$. These textures are interesting since they are related to the $Z_{n}$ flavor symmetries. Using the weak basis permutation transformation, the 15 parallel textures are grouped as 4 classes (class I,II,III and IV) with the matrices in each class sharing the same physical implications. Under the current experimental data, the class I, III with inverted mass hierarchy and class II with normal mass hierarchy are phenomenologically acceptable. The correlations between some important physical variables are presented, which are essential for the model selection and can be text by future experiments. The model realization is illustrated by means of $Z_{4}\times Z_{2}$ flavor symmetry.
description: 23 pages, 6 figures. arXiv admin note: text overlap with arXiv:1401.3949
Cheilosia scutellata
Creators: name: MAZáNEK, Libor
name: VONIČKA, Pavel
name: PREISLER, JiřÍ
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Cheilosia
Cheilosia scutellata

description: Cheilosia scutellata (Fallén, 1817) Palearktický druh, častý prakticky ve všech lesnatých krajinÁch. MykofÁgnÍ larvy žijÍ v plodnicÍch hub, zejména hřibovitých (Boletus spp., Suillus spp.). Hejnice [9]: 19.VI.2007, 2 ♂♂. Kořenov [16a]: 13.VI.2005, 1 ♀. Oldřichovské sedlo [27]: 3.-15.VII.2003, 1 ♀ (YPT).
description: Published as part of MAZáNEK, Libor, VONIČKA, Pavel & PREISLER, JiřÍ, 2009, Syrphidae (Diptera) of the Jizerské hory Mts and Frýdlant region (northern Bohemia, Czech Republic), pp. 3-46 in Sborník Severočeského Muzea 27 on page 36, DOI: 10.5281/zenodo.7153554
Le pulsar ci svelano il respiro dello spazio-tempo
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2023

Dai dati raccolti in oltre 25 anni da sei dei radiotelescopi più sensibili del mondo, fra cui il Sardinia Radio Telescope dell'Inaf, emergono i segni distintivi dell'esistenza di onde gravitazionali a bassissima frequenza. Una scoperta che apre una nuova finestra osservativa nella scienza delle onde gravitazionali, e conferma l’esistenza di onde gravitazionali ultra lunghe generate, secondo le teorie, da coppie di buchi neri supermassicci durante il processo di fusione fra due galassie
Cheilosia urbana
Creators: name: MAZáNEK, Libor
name: VONIČKA, Pavel
name: PREISLER, JiřÍ
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Cheilosia
Cheilosia urbana

description: Cheilosia urbana (Meigen, 1822) Druh zÁpadnÍho palearktu. Vyskytuje se velmi často na vlhčÍch světlinÁch a pasekÁch v listnatých i jehličnatých lesÍch. FytofÁgnÍ larvy se živÍ na kořenech jestřÁbnÍků (Hieracium spp.) a zřejmě i tužebnÍku (Filipendula ulmaria). Bukovec PR [3d]: 29.V.2004, 1 ♀ (SW). Tichá říčka PP [44]: 6.V.-2.VI.2004, 14 ♂♂, 3 ♀♀ (YPT), 1 ♀ (MT).
description: Published as part of MAZáNEK, Libor, VONIČKA, Pavel & PREISLER, JiřÍ, 2009, Syrphidae (Diptera) of the Jizerské hory Mts and Frýdlant region (northern Bohemia, Czech Republic), pp. 3-46 in Sborník Severočeského Muzea 27 on page 36, DOI: 10.5281/zenodo.7153554
D2.3: Parametric design to optimize productivity, resource efficiency, and safety
Creators: name: Ongodia, Joan Evelyn
name: Merz, Paul
Publisher: name: Zenodo
Year: 2023
Subjects: Digital Twin
Parametric design
Historic data knowledgebase

description: The ASHVIN work package (WP) 2 “Design for productivity and safety” develops possibilities to allow designers and engineers to account for the aspects of productivity, resource efficiency, and safety early in the design phase, allowing for the use of digital twin technology at the start of the product development lifecycle. Deliverable 2.3 “Parametric design to optimize productivity, resource efficiency, and safety during early design stages” was submitted in January 2023, and it is one of the technical deliverables of this WP. This report is linked to task 2.3 “Generative design configurator”, led by TUB. This deliverable describes the parametric design and models supporting decision-making in construction project management.
Universality of Long-Distance AdS Physics from the CFT Bootstrap
Creators: name: Fitzpatrick, A. Liam
name: Kaplan, Jared
name: Walters, Matthew T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We begin by explicating a recent proof of the cluster decomposition principle in AdS_{d+1} from the CFT_d bootstrap in d > 2. The CFT argument also computes the leading interactions between distant objects in AdS, and we confirm the universal agreement between the CFT bootstrap and AdS gravity in the semi-classical limit. We proceed to study the generalization to 2d CFTs, which requires knowledge of the Virasoro conformal blocks in a lightcone OPE limit. We compute these blocks in a semiclassical, large central charge approximation, and use them to prove a suitably modified theorem. In particular, from the 2d bootstrap we prove the existence of large spin operators with fixed 'anomalous dimensions' indicative of the presence of deficit angles in AdS_3. As we approach the threshold for the BTZ black hole, interpreted as a CFT scaling dimension, the twist spectrum of large spin operators becomes dense. Due to the exchange of the Virasoro identity block, primary states above the BTZ threshold mimic a thermal background for light operators. We derive the BTZ quasi-normal modes, and we use the bootstrap equation to prove that the twist spectrum is dense. Corrections to thermality could be obtained from a more refined computation of the Virasoro conformal blocks.
description: 34+31 pages, references added, typo in higher-dimensional energy shift corrected, discussion of coefficient density bounds expanded
Variances and Covariances in the Central Limit Theorem for the Output of a Transducer
Creators: name: Heuberger, Clemens
name: Kropf, Sara
name: Wagner, Stephan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60F05, 68W40 05C20 05C30 11B85 68Q45

description: We study the joint distribution of the input sum and the output sum of a deterministic transducer. Here, the input of this finite-state machine is a uniformly distributed random sequence. We give a simple combinatorial characterization of transducers for which the output sum has bounded variance, and we also provide algebraic and combinatorial characterizations of transducers for which the covariance of input and output sum is bounded, so that the two are asymptotically independent. Our results are illustrated by several examples, such as transducers that count specific blocks in the binary expansion, the transducer that computes the Gray code, or the transducer that computes the Hamming weight of the width-$w$ non-adjacent form digit expansion. The latter two turn out to be examples of asymptotic independence.
A reproducible benchmark of resting-state fMRI denoising strategies using fMRIPrep and Nilearn
Creators: name: Wang, Hao-Ting
name: Meisler, Steven L
name: Hanad Sharmarke
name: Clarke, Natasha
name: Paugam, François
name: Gensollen, Nicolas
name: Markiewicz, Christopher J
name: Thirion, Bertrand
name: Bellec, Pierre
Publisher: name: Zenodo
Year: 2023
Subjects: canadian-open-neuroscience-platform
neurolibre

description: NeuroLibre JupyterBook built at this reference repository/commit by roboneuro, based on the latest change by the author. For details, please visit the corresponding NeuroLibre technical screening. https://neurolibre.org
Cheilosia variabilis
Creators: name: MAZáNEK, Libor
name: VONIČKA, Pavel
name: PREISLER, JiřÍ
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Cheilosia
Cheilosia variabilis

description: Cheilosia variabilis (Panzer, 1798) Široce rozšÍřený palearktický druh. Vyskytuje se velmi hojně na světlinÁch a v průsecÍch v nejrůznějšÍch lesÍch. Larvy žijÍ v kořenech krtičnÍku hlÍznatého (Scrophularia nodosa). Bílý Potok [1a]: 16.VI.2005, 2 ♂♂. Bukovec PR [3a]: 13.VI.2005, 2 ♂♂; 18.VI.2005, 1 ♂, 1 ♀ (SW); [3d]: 13.VI.2005, 2 ♀♀; 17.VI.2005, 1 ♀ (SW).
description: Published as part of MAZáNEK, Libor, VONIČKA, Pavel & PREISLER, JiřÍ, 2009, Syrphidae (Diptera) of the Jizerské hory Mts and Frýdlant region (northern Bohemia, Czech Republic), pp. 3-46 in Sborník Severočeského Muzea 27 on page 36, DOI: 10.5281/zenodo.7153554
I connotati d’un gigante gassoso
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2023

Monossido di carbonio, monossido di zolfo e monosolfuro di silicio: sono le tre specie chimiche scoperte da un team di ricercatori all’interno del disco protoplanetario di Hd 169142, una giovane stella distante 374 anni luce dalla Terra. Individuate spulciando nei dati d’archivio di Alma, secondo gli autori, sarebbero le firme chimiche più convincentI mai ottenute della formazione di un protopianeta
All’inferno e ritorno: Halla, il pianeta sopravvissuto
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2023

Halla, alias 8 Ursae Minoris b, è un pianeta che non dovrebbe esistere: orbita infatti all’interno di una regione inglobata dalla stella al centro del sistema nell’epoca in cui è stata una gigante rossa. Eppure è lì. Com’è possibile? Lo abbiamo chiesto ad Amalie Stokholm, ricercatrice all’Università di Bologna e associata Inaf, coautrice dell’articolo che oggi su Nature riporta la scoperta
Beam energy dependence of moments of the net-charge multiplicity distributions in Au+Au collisions at RHIC
Creators: name: STAR Collaboration
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We report the first measurements of the moments -- mean ($M$), variance ($σ^{2}$), skewness ($S$) and kurtosis ($κ$) -- of the net-charge multiplicity distributions at mid-rapidity in Au+Au collisions at seven energies, ranging from $\sqrt {s_{\rm NN}}$= 7.7 to 200 GeV, as a part of the Beam Energy Scan program at RHIC. The moments are related to the thermodynamic susceptibilities of net-charge, and are sensitive to the proximity of the QCD critical point. We compare the products of the moments, $σ^{2}/M$, $Sσ$ and $κσ^{2}$ with the expectations from Poisson and negative binomial distributions (NBD). The $Sσ$ values deviate from Poisson and are close to NBD baseline, while the $κσ^{2}$ values tend to lie between the two. Within the present uncertainties, our data do not show non-monotonic behavior as a function of collision energy. These measurements provide a distinct way of determining the freeze-out parameters in heavy-ion collisions by comparing with theoretical models.
description: 7 pages, 4 figures, Accepted by PRL
Resource Allocation Heuristics for Unknown Sales Response Functions with Additive Disturbances
Creators: name: Gahler, Daniel
name: Hruschka, Harald
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: Marketing Resource Allocation; Exploration-Exploitation Algorithm; Monte Carlo Simulation; Optimization
subject: 330 Wirtschaft
subject: M30
subject: C61
subject: C63

description: We develop an exploration-exploitation algorithm which solves the allocation of a fixed resource (e.g., a budget, a sales force size, etc.) to several units (e.g., sales districts, customer groups, etc.) with the objective to attain maximum sales. This algorithm does not require knowledge of the form of the sales response function and is also able cope with additive random disturbances. The latter as a rule are a component of sales response functions estimated by econometric methods. We compare the algorithm to three rules of thumb which in practice are often used for this allocation problem. The comparison is based on a Monte Carlo simulation for five replications of 192 experimental constellations, which are obtained from four function types, four procedures (i.e., the three rules of thumb and the algorithm), similar/varied elasticities, similar/varied saturations, and three error levels. A statistical analysis of the simulation results shows that the algorithm performs better than the three rules of thumb if the objective consists in maximizing sales across several periods. We also mention several more general marketing decision problems which could be solved by appropriate modifications of the algorithm presented.
Uno Stregatto sul cielo di Paranal
Creators: Redazione Eso
Publisher: name: Media Inaf
Year: 2023

Catturata dal Vst (VltSurvey Telescope), un telescopio dell’Inaf installato in Cile all’Osservatorio di Paranal dell’Eso, questa spettacolare immagine dalle sembianze feline mostra la nebulosa Sh2-284, una regione di formazione stellare con, al centro, un ammasso di giovani stelle. I brillanti colori arancione e rosso sono dovuti alla ionizzazione dell’idrogeno gassoso contenuto nella nebulosa
Alma indaga l’origine delle stelle massicce
Creators: Jacopo Danieli
Publisher: name: Media Inaf
Year: 2023

In un recente studio pubblicato su The Astrophysical Journal, un team internazionale di ricercatori, osservando un esteso campione di nuclei all'interno di nubi interstellari, ha suggerito la necessità di nuovi modelli per spiegare l’evoluzione delle stelle massicce. Il team ha inoltre osservato che i progenitori di questo tipo di stelle potrebbero essere i nuclei più densi, piuttosto che quelli più massicci
An analysis and performance guide of Luciano Berio's Sequenza IX
Creators: name: Lim, Jiyeon
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Clarinet
Berio
Sequenza IX
Performance guide

description: Berio’s Sequenza IX is one of the most well-known and influential compositions in the contemporary repertoire for clarinetists. Indeed, many prominent competitions require clarinetists to play it. For example, Berio’s Sequenza IX appeared as a second-round repertoire selection in the 2019 Nielsen Competition. Although I had avoided contemporary music (like most of performers) because of its difficulty, I became fascinated by Berio’s Sequenza IX when I had to listen and study the piece in preparation for the Nielsen Competition. During my study of the piece, the history of the Sequenza series – the fact that Berio wrote Sequenza IX as part of a series for all kinds of instruments – and the difference between Berio’s music and the repertoire that I typically played piqued my interest. This treatise provides an analysis of and performance guide for Luciano Berio’s Sequenza IX (1980). I first outline the compositional history of the work. I then contextualize the piece in relation to Berio’s electronic music and experience at IRCAM; in particular, I explore how the relationships between the electronic and clarinet parts in Chemins V were transferred to Sequenza IX. I analyze the pitch content, phrase structure, and form of the piece. And, lastly, based on my analysis, I provide a performance guide to help performers play Berio’s Sequenza IX. Numerous factors – its complex harmonic language, fragmented melodies, unclear phrasing, un-notated meter, and extended techniques – make Sequenza IX one of the most difficult modern works for solo clarinet. My research will help performers understand the details and structure of the piece so that they can have more direction and efficiency in their practice of the piece.
Terra calda o giovane Venere, questo è il dilemma
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2023

Lp 890-9c è una super-terra situata nel bordo interno della zona abitabile della sua stella, la nana rossa Lp 890-9. Per comprendere se questo pianeta e in generale altri mondi simili situati in questa zona siano in grado di ospitare la vita, un team di ricercatori della Cornell University ha studiato la sua atmosfera utilizzando dei modelli evolutivi climatici. I risultati dello studio sono pubblicati su Mnras Letters
Self-forced evolutions of an implicit rotating source: A natural framework to model comparable and intermediate mass-ratio systems from inspiral through ringdown
Creators: name: Huerta, E. A.
name: Kumar, Prayush
name: Gair, Jonathan R.
name: McWilliams, Sean T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: J.2

description: We develop a waveform model to describe the inspiral, merger and ringdown of binary systems with comparable and intermediate mass-ratios. This model incorporates first-order conservative self-force corrections to the energy and angular momentum, which are valid in the strong-field regime [1]. We model the radiative part of the self-force by deriving second-order radiative corrections to the energy flux. These corrections are obtained by minimizing the phase discrepancy between our self-force model and the effective one body model [2, 3] for a variety of mass-ratios. We show that our model performs substantially better than post-Newtonian approximants currently used to model neutron star-black hole mergers from early inspiral to the innermost stable circular orbit. In order to match the late inspiral evolution onto the plunge regime, we extend the 'transition phase' developed by Ori and Thorne [4] by including finite mass-ratio corrections and modelling the orbital phase evolution using an implicit rotating source [5]. We explicitly show that the implicit rotating source approach provides a natural transition from late-time radiation to ringdown that is equivalent to ringdown waveform modelling based on a sum of quasinormal modes.
description: 22 pages, 12 figures. Submitted to Phys. Rev. D. v2: Accepted to Phys. Rev. D. References updated. No corrections
Cheilosia vulpina
Creators: name: MAZáNEK, Libor
name: VONIČKA, Pavel
name: PREISLER, JiřÍ
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Cheilosia
Cheilosia vulpina

description: Cheilosia vulpina (Meigen, 1822) Druh zÁpadnÍho palearktu, lokÁlně hojný v nejrůznějšÍch nezapojených lesÍch a na zarůstajÍcÍch pastvinÁch. FytofÁgnÍ larvy žijÍ v kořenech některých hvězdnicovitých bylin, zejména pchÁčů (Cirsium spp.). Bílý Potok [1a]: 16.VI.2005, 1 ♂. Kořenov [16a]: 13.VI.2005, 1 ♂.
description: Published as part of MAZáNEK, Libor, VONIČKA, Pavel & PREISLER, JiřÍ, 2009, Syrphidae (Diptera) of the Jizerské hory Mts and Frýdlant region (northern Bohemia, Czech Republic), pp. 3-46 in Sborník Severočeského Muzea 27 on page 37, DOI: 10.5281/zenodo.7153554
Analytical stable Gaussian soliton supported by a parity-time-symmetric potential with power-law nonlinearity
Creators: name: Midya, Bikashkali
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We address the existence and stability of spatial localized modes supported by a parity-time-symmetric complex potential in the presence of power-law nonlinearity. The analytical expressions of the localized modes, which are Gaussian in nature, are obtained in both (1+1) and (2+1) dimensions. A linear stability analysis corroborated by the direct numerical simulations reveals that these analytical localized modes can propagate stably for a wide range of the potential parameters and for various order nonlinearities. Some dynamical characteristics of these solutions, such as the power and the transverse power-flow density, are also examined.
description: Nonlinear Dynamics (2014)
Primary contraceptive method use and sexually transmitted infections in a nationally representative sample of young women
Creators: name: Whitfield, Brooke
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Sexually transmitted infections
Adolescents
Young adults
Sexual and reproductive health

description: Rates of sexually transmitted infections (STIs) in the U.S. have increased for the sixth consecutive year and people ages 15-24 account for over half of all new infections despite comprising only a quarter of the sexually active population. A potential explanation for rising STI rates is the increased use of long-acting reversible contraceptive (LARCs) methods which may result in lower condom use and/or increased sexual risk-taking due to higher pregnancy prevention efficacy. This paper uses the National Survey of Family Growth to examine the relationship between primary contraceptive method use among women ages 15-24 and STI treatment in the past year, and the extent to which this association is mediated by relationship status and frequency of condom use. Findings did not show differences in STI treatment in the past year by primary contraceptive method indicating that LARC use among young women does not equate to increased STI risk. Findings did show that young women who had been in only casual relationships or a mix of serious, dating, and/or casual relationships in the past year were more likely to have been treated for an STI than young women in serious- or dating-only relationships, regardless of primary method use. Additionally, young women who reported using condoms only “some of the time” were more likely to have been treated for an STI in the past 12 months compared to women who used condoms “all of the time” or “most of the time.” This association was moderately mediated by relationship status (p=0.05).
Disco dance per l’universo oscuro
Creators: Chiara Badia
Publisher: name: Media Inaf
Year: 2023

Selezionate le migliori creazioni artistiche ispirate alle percentuali 5–25-70 dell’universo conosciuto, della materia e dell’energia oscura e dedicate alla missione Euclid, in partenza il primo luglio. Vince il video-disegno della danese Mette Bybjerg Brock, secondo posto per due opere dall’Italia e una menzione speciale per la hit dance spaziale dell’italiano Kevin Wolz
FIELD: An automated emission-line detection software for Subaru/FMOS near-infrared spectroscopy
Creators: name: Tonegawa, Motonari
name: Totani, Tomonori
name: Iwamuro, Fumihide
name: Akiyama, Masayuki
name: Dalton, Gavin
name: Glazebrook, Karl
name: Ohta, Kouji
name: Okada, Hiroyuki
name: Yabe, Kiyoto
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We describe the development of automated emission line detection software for the Fiber Multi-Object Spectrograph (FMOS), which is a near-infrared spectrograph fed by $400$ fibers from the $0.2$ deg$^2$ prime focus field of view of the Subaru Telescope. The software, FIELD (FMOS software for Image-based Emission Line Detection), is developed and tested mainly for the FastSound survey, which is targeting H$α$ emitting galaxies at $z \sim 1.3$ to measure the redshift space distortion as a test of general relativity beyond $z \sim 1$. The basic algorithm is to calculate the line signal-to-noise ratio ($S/N$) along the wavelength direction, given by a 2-D convolution of the spectral image and a detection kernel representing a typical emission line profile. A unique feature of FMOS is its use of OH airglow suppression masks, requiring the use of flat-field images to suppress noise around the mask regions. Bad pixels on the detectors and pixels affected by cosmic-rays are efficiently removed by using the information obtained from the FMOS analysis pipeline. We limit the range of acceptable line-shape parameters for the detected candidates to further improve the reliability of line detection. The final performance of line detection is tested using a subset of the FastSound data; the false detection rate of spurious objects is examined by using inverted frames obtained by exchanging object and sky frames. The false detection rate is $< 1$\% at $S/N > 5$, allowing an efficient and objective emission line search for FMOS data at the line flux level of $\gtrsim 1.0 \times 10^{-16}$[erg/cm$^2$/s].
description: 8 pages, 1 table, 5 figures, accepted to PASJ
A hybrid-stress finite element approach for stress and vibration analysis in linear anisotropic elasticity
Creators: name: Mahadevan, L. (Lakshminarayanan)
Publisher: name: The University of Texas at Austin
Year: 1987
Subjects: subject: Finite element
subject: Hybrid-stress
subject: Stress analysis
subject: Vibration analysis
subject: Linear anisotropic elasticity
subject: Strains and stresses
subject: Vibration
subject: Elasticity
subject: Finite element method

description: A hybrid-stress finite element method is developed for accurate stress and vibration analysis of problems in linear anisotropic elasticity. A modified form of the Hellinger-Reissner principle is formulated for dynamic analysis and an algorithm for the determination of the anisotropic elastic and compliance constants from experimental data is developed. These schemes have been implemented in a finite element program for static and dynamic analysis of linear anisotropic two-dimensional elasticity problems. Specific numerical examples are considered to verify the accuracy of the hybrid-stress approach and compare it with that of the standard displacement method, especially for highly anisotropic materials. It is that the hybrid-stress approach gives significantly better results than the displacement method. Preliminary work on extensions of this method to three-dimensional elasticity is discussed, and the stress shape functions necessary for this extension are included
Rhingia borealis Ringdahl 1928
Creators: name: MAZáNEK, Libor
name: VONIČKA, Pavel
name: PREISLER, JiřÍ
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Rhingia
Rhingia borealis

description: Rhingia borealis Ringdahl, 1928 Eurosibiřský druh, vyskytujÍcÍ se vzÁcně na světlinÁch a v průsecÍch ve vlhkých listnatých a smrkových lesÍch, zejména ve vyššÍch polohÁch. Rejdice [35]: 25.V.2005, 1 ♂ (SW); 16.VIII.-1.IX.2005, 1 ♀ (ET).
description: Published as part of MAZáNEK, Libor, VONIČKA, Pavel & PREISLER, JiřÍ, 2009, Syrphidae (Diptera) of the Jizerské hory Mts and Frýdlant region (northern Bohemia, Czech Republic), pp. 3-46 in Sborník Severočeského Muzea 27 on page 37, DOI: 10.5281/zenodo.7153554
Webb scopre una miccia per la chimica organica
Creators: Laura Leonardi
Publisher: name: Media Inaf
Year: 2023

Un team di astronomi guidato da Olivier Berné del Cnrs e dell’Università di Tolosa ha rilevato per la prima volta nello spazio, grazie al telescopio spaziale James Webb, un composto del carbonio conosciuto come catione metile. La molecola favorirebbe la formazione di sostanze più complesse alla base della vita. I risultati sono stati pubblicati su Nature
Rhingia campestris Meigen 1822
Creators: name: MAZáNEK, Libor
name: VONIČKA, Pavel
name: PREISLER, JiřÍ
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Rhingia
Rhingia campestris

description: Rhingia campestris Meigen, 1822 Palearktický druh. V současnosti se vyskytuje již řÍdce, hojnějšÍ je na extenzivnÍch pastvinÁch s tradičnÍm pastevectvÍm skotu. SaprofÁgnÍ larvy žijÍ zejména v mokrých výkalech skotu. Bílý Potok [1a]: 3.-19.V.2005, 3 ♂♂ (MT); 29.VII.-19.VIII.2005, 1 ♂ (MT); 21.VI.2006, 1 ♀ (SW); [1b]: 31.V.2004, 1 ♀ (SW); 2.VI.2005, 1 ♀ (SW); [1c]: 22.V.2003, 1 ♀ (SW). Černousy [6b]: 17.VI.2007, 1 ♂ (SW). Frýdlant [7]: 3.VIII.2004, 1 ♂, 1 ♀; 22.V.2006, 3 ♀♀ (SW). Meandry Smědé PR [22a]: 1.V.2005, 1 ♂; [22b]: 19.-31.V.2005, 1 ♂ (MT). Oldřichov v Hájích [28b]: 24.V.2003, 1 ♀ (SW). Poledník [31]: 6.V.-2.VI.2004, 1 ♀ (MT). Rejdice [35]: 25.V.2005, 1 ♀ (SW). Smrk [39d]: 11.V.-2.VI.2006, 1 ♀ (YPT). U Kyselky [46]: 11.V.-2.VI.2006, 2 ♂♂ (YPT). Zlatá Olešnice [49a]: 3.VI.2004, 1 ♀ (SW).
description: Published as part of MAZáNEK, Libor, VONIČKA, Pavel & PREISLER, JiřÍ, 2009, Syrphidae (Diptera) of the Jizerské hory Mts and Frýdlant region (northern Bohemia, Czech Republic), pp. 3-46 in Sborník Severočeského Muzea 27 on page 37, DOI: 10.5281/zenodo.7153554
Entanglement spreading after a geometric quench in quantum spin chains
Creators: name: Alba, Vincenzo
name: Heidrich-Meisner, Fabian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the entanglement spreading in the anisotropic spin-1/2 Heisenberg (XXZ) chain after a geometric quench. This corresponds to a sudden change of the geometry of the chain or, in the equivalent language of interacting fermions confined in a box trap, to a sudden increase of the trap size. The entanglement dynamics after the quench is associated with the ballistic propagation of a magnetization wavefront. At the free fermion point (XX chain), the von-Neumann entropy S_A exhibits several intriguing dynamical regimes. Specifically, at short times a logarithmic increase is observed, similar to local quenches. This is accurately described by an analytic formula that we derive from heuristic arguments. At intermediate times partial revivals of the short-time dynamics are superposed with a power-law increase S_A t^α, with α<1. Finally, at very long times a steady state develops with constant entanglement entropy. As expected, since the model is integrable, we find that the steady state is non thermal, although it exhibits extensive entanglement entropy. We also investigate the entanglement dynamics after the quench from a finite to the infinite chain (sudden expansion). While at long times the entanglement vanishes, we demonstrate that its relaxation dynamics exhibits a number of scaling properties. Finally, we discuss the short-time entanglement dynamics in the XXZ chain in the gapless phase. The same formula that describes the time dependence for the XX chain remains valid in the whole gapless phase.
description: 17 pages, 13 figures. Revised version, typos corrected, added new figure. As accepted in PRB
Soundcheck, un’antenna gravitazionale sulla Luna
Creators: Ufficio Comunicazione Gssi
Publisher: name: Media Inaf
Year: 2023

Nei giorni scorsi l’Esa ha comunicato che Soundcheck è stata selezionata all’interno del Reserve Pool of Science Activities for the Moon. Al progetto partecipano anche diversi enti di ricerca internazionali. La missione ha tra i suoi ideatori ricercatori del Gssi, dell’Inaf e dell’Infn. Obiettivo: studiare la struttura interna del satellite naturale della Terra e usarlo come una grande antenna per onde gravitazionali
A sparse representation for potential energy surface
Creators: name: Seko, Atsuto
name: Takahashi, Akira
name: Tanaka, Isao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose a simple scheme to estimate potential energy surface (PES) with which the accuracy can be easily controlled and improved up to the level of the density functional theory (DFT) calculations. It is based on a model selection within the framework of linear regression using the least absolute shrinkage and selection operator (LASSO) technique. Basis functions are selected from a systematic large set of candidate functions. The sparsity of PES significantly reduces the computational demands for evaluation of the energy and the force in molecular dynamics simulations without losing the accuracy. The usefulness of the scheme is well demonstrated for describing elemental metals of Na and Mg.
description: 5 pages, 4 figures
Cinque attosecondi: il segnale più breve mai creato
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2023

Tre scienziati dell’Università di Costanza sono riusciti a produrre uno dei segnali più brevi mai creati dall'uomo, utilizzando impulsi laser accoppiati per comprimere una serie di impulsi di elettroni in un periodo di soli 5 attosecondi, ossia 5 miliardesimi di nanosecondo. Questa scoperta apre nuove prospettive nel campo dei fenomeni ultraveloci e potrebbe portarci, un giorno, a filmare le reazioni nucleari
ConcePTION: Toolkit to stimulate reporting and participation in studies/registries for pregnant and breastfeeding women
Creators: name: Willemen, Marjolein
name: Adamson, Elizabeth
name: Stephens, Sally
name: Oliver, Alison
name: Kant, Agnes
name: Nörby, Ulrika
name: Douarin, Ludivine
name: Fernow, Josepine
name: Tcherny-Lessenot, Stéphanie
name: Steel, Michael
name: Berlin, Maya
name: Harnik, Helena
name: Honorato-Rzeszewics, Talita
name: Holm, Anna
name: Ljungberg, Marika
name: Niklson, Ida
Publisher: name: Zenodo
Year: 2023

description: This Toolkit was developed for TIS centers, health authorities (HAs), and other stakeholders on how to plan and initiate a communication campaign for the general population, pregnant women/women of reproductive age and health care professionals (HCPs) at little cost. The Toolkit includes: General recommendations to develop push-pull strategies and value propositions to support targeted communications Step-by-step guide to tailor example messages into digital and print communications and social media campaigns in your country Adaptable and affordable materials for digital and print communications and social media campaigns, that can be tailored to your local context and language
Crossing muons in Icecube at highest energy: Cornerstone to neutrino astronomy
Creators: name: Fargion, D.
name: Oliva, P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Highest energy neutrino events (contained) in cubic km ICECUBE detector resulted in last three years to be as many as $37-2=35$ signals (two of those having been recently discharged); these tens-hundred TeV (32 energetic events) up to rarest (only 3) PeV cascade showers, proved to have an extraterrestrial origin. The UHE neutrino flavor transition from a $ν_μ$ atmospheric dominance (over $ν_{e}$ showers at TeV energy), toward a higher energy shower cascade ($ν_{e}$, $ν_τ$) events at few tens TeV up to PeV energy is a hint of such a fast extraterrestrial injection. The majority (28 out of 35) of all these events are spherical cascade; their consequent smeared map is inconclusive. The additional rarest $9-2=7$ muon tracks, while being sharp in arrival directions, did not offer any correlated clustering nor any overlapping within known sources. We recently suggested that the highest energy (tens-TeV) crossing muon along the ICECUBE, mostly at horizons or upcoming, are the ideal tool able to reveal soon such clustering or even any narrow angle pointing to known (IR, X, Radio or $γ$) sources or self-correlation in rare doublet or triplet: a last hope for a meaningful and short-time $ν$ Astronomy. Any crossing muons clustering along galactic sources or within UHECR arrivals might also probe rarest UHECR event made by nuclei or neutrons. Within three years of ICECUBE data all the non-contained crossing highest energy muons above few tens TeV may be several dozens, possibly around $54$ (27 for upward ones), mostly enhanced along horizontal edges, painting known sources and/or self-correlating in doublets or rarest triplet (if steady or transient nearby source are at sight). Recent preliminary ICECUBE presentation on crossing muons are consistent with present preliminary muon rate estimate.
description: 5 pages, 2 figure, Nucl.B macro
MODERN TEACHING METHODS USED IN TEACHING ECONOMICS AT INSTITUTE
Creators: name: Ergashev, Khudoynazar
Publisher: name: Zenodo
Year: 2023

description: When organizing economics classes at institute, it is important to use active teaching methods, because they allow students to understand the practical significance of economics, apply theoretical knowledge in this discipline in practice, understand the structure and functioning mechanism of certain enterprises, etc. According to the degree of activation of students and the nature of their educational and cognitive activity, they differ: imitation methods, based on pedagogical techniques and special forms of conducting classes, in which educational, cognitive and research activities are based on imitation of future professional and practical activities, and non-imitation methods, which are based on real professional and practical situations. The purpose of the article is to study the organizational and methodological process of teaching economics at institute.