cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Simplified model for the energy levels of quantum rings in single layer and bilayer graphene
Creators: name: Zarenia, M.
name: Pereira, J. Milton
name: Chaves, A.
name: Peeters, F. M.
name: Farias, G. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Within a minimal model, we present analytical expressions for the eigenstates and eigenvalues of carriers confined in quantum rings in monolayer and bilayer graphene. The calculations were performed in the context of the continuum model, by solving the Dirac equation for a zero width ring geometry, i.e. by freezing out the carrier radial motion. We include the effect of an external magnetic field and show the appearance of Aharonov-Bohm oscillations and of a non-zero gap in the spectrum. Our minimal model gives insight in the energy spectrum of graphene-based quantum rings and models different aspects of finite width rings.
description: To appear in Phys. Rev. B
Reducing the Heterogeneity of Payoffs: an Effective Way to Promote Cooperation in Prisoner's Dilemma Game
Creators: name: Jiang, Luo-Luo
name: Zhao, Ming
name: Yang, Han-Xin
name: Wakeling, Joseph
name: Wang, Bing-Hong
name: Zhou, Tao
Publisher: name: arXiv
Year: 2009
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In this paper, the total payoff of each agent is regulated to reduce the heterogeneity of the distribution of the total payoffs. It is found there is an optimal regulation strength where the fraction of cooperation is prominently promoted, too weak or too strong of the strength will have little effects or result in the disappearance of the cooperators. It is also found that most of the cooperators are not distributed in isolation but form the cooperator clusters, and to promote the cooperation the only way is to enlarge the size of the cooperator clusters. Finally, we try to explain the emergence of larger clusters and prove the existence of the optimal regulation strength. Our works provide insight into the understanding of the relations between the distribution of payoffs and the cooperative behaviors.
description: 4 figures, 4 pages
Infiniti universi e bellissimi
Creators: Davide Coero Borga
Publisher: name: Media Inaf
Year: 2016

Se vogliamo dare una spinta alla ricerca in ambito di materia ed energia oscura, c’è bisogno di ridurre il tempo di calcolo necessario a sviluppare virtualmente nuovi e perfetti universi. Uno studio anglo-spagnolo propone un approccio 25 volte più veloce dei metodi attualmente a disposizione
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹, Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÑ Ð½Ð° Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: ÐÐµÐ»ÑÑÐºÐ°Ñ, ÐÐ»ÐµÐ½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: Ð°ÐºÑÐ¸Ð²Ñ
Ð°Ð½Ð°Ð»Ð¸Ð·
Ð»Ð¸ÐºÐ²Ð¸Ð´Ð½Ð¾ÑÑÑ
ÑÐµÐ½ÑÐ°Ð±ÐµÐ»ÑÐ½Ð¾ÑÑÑ

description: Ð ÑÐ°Ð¼ÐºÐ°Ñ Ð´Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¸Ð·ÑÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ, Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ ÐºÐ¾ÑÐ¾ÑÑÑ, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ ÐÐÐ Â«ÐÐ¢ÐÂ», ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ, Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÐµ Ð½Ð° ÑÐºÑÐµÐ¿Ð»ÐµÐ½Ð¸Ðµ ÐµÐ³Ð¾ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ, Ð² Ñ.Ñ. ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ðµ Ð¿ÑÐ¸Ð±ÑÐ»Ð¸.
Mapping the $ν_\odot$ Secular Resonance for Retrograde Irregular Satellites
Creators: name: Otto, J. Correa
name: Leiva, A. M.
name: Giuppone, C. A.
name: Beaugé, C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Constructing dynamical maps from the filtered output of numerical integrations, we analyze the structure of the $ν_\odot$ secular resonance for fictitious irregular satellites in retrograde orbits. This commensurability is associated to the secular angle $θ= \varpi - \varpi_\odot$, where $\varpi$ is the longitude of pericenter of the satellite and $\varpi_\odot$ corresponds to the (fixed) planetocentric orbit of the Sun. Our study is performed in the restricted three-body problem, where the satellites are considered as massless particles around a massive planet and perturbed by the Sun. Depending on the initial conditions, the resonance presents a diversity of possible resonant modes, including librations of $θ$ around zero (as found for Sinope and Pasiphae) or 180 degrees, as well as asymmetric librations (e.g. Narvi). Symmetric modes are present in all giant planets, although each regime appears restricted to certain values of the satellite inclination. Asymmetric solutions, on the other hand, seem absent around Neptune due to its almost circular heliocentric orbit. Simulating the effects of a smooth orbital migration on the satellite, we find that the resonance lock is preserved as long as the induced change in semimajor axis is much slower compared to the period of the resonant angle (adiabatic limit). However, the librational mode may vary during the process, switching between symmetric and asymmetric oscillations. Finally, we present a simple scaling transformation that allows to estimate the resonant structure around any giant planet from the results calculated around a single primary mass.
description: 11 pages, 13 figures
Lessons on leveraging large enrollment courses to screen studies for systematic reviews
Creators: name: Lajeunesse, Marc
Publisher: name: Zenodo
Year: 2022
Subjects: ESMARConf2022
evidence synthesis
meta-analysis
RStats

description: Here I describe eight semesters of experimentation with various abstract screening tools, including R, HTML, CANVAS, and Adobe, with the aims to (1) improve science literacy among undergraduate students, and (2) leverage large enrollment courses to process and code vast amounts of bibliographic information for systematic reviews. I then discuss the promise of undergraduate participation for screening and classification, but emphase (1) consistent failures of tools, in terms of student accessibility and ability to combine and compare student screening decisions, and (2) my consistent inability to get consistent, high-quality screening outcomes from students.
On the entropy production of time series with unidirectional linearity
Creators: name: Janzing, Dominik
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: There are non-Gaussian time series that admit a causal linear autoregressive moving average (ARMA) model when regressing the future on the past, but not when regressing the past on the future. The reason is that, in the latter case, the regression residuals are only uncorrelated but not statistically independent of the future. In previous work, we have experimentally verified that many empirical time series indeed show such a time inversion asymmetry. For various physical systems, it is known that time-inversion asymmetries are linked to the thermodynamic entropy production in non-equilibrium states. Here we show that such a link also exists for the above unidirectional linearity. We study the dynamical evolution of a physical toy system with linear coupling to an infinite environment and show that the linearity of the dynamics is inherited to the forward-time conditional probabilities, but not to the backward-time conditionals. The reason for this asymmetry between past and future is that the environment permanently provides particles that are in a product state before they interact with the system, but show statistical dependencies afterwards. From a coarse-grained perspective, the interaction thus generates entropy. We quantitatively relate the strength of the non-linearity of the backward conditionals to the minimal amount of entropy generation.
description: 16 pages
Titano, un tesoro prebiotico anche senza acqua
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2016

Non è detto che solo dove c'è acqua può esserci vita. Ne sono convinti alcuni ricercatori i quali credono che la luna più grande di Saturno possa ospitare molecole prebiotiche capaci di resistere alle temperature estreme presenti su quel gelido mondo
Saturation Throughput Analysis of IEEE 802.11b Wireless Local Area Networks under High Interference Considering Capture Effects
Creators: name: Kumar, Ponnusamy
name: Krishnan, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Distributed contention based Medium Access Control (MAC) protocols are the fundamental components for IEEE 802.11 based Wireless Local Area Networks (WLANs). Contention windows (CW) change dynamically to adapt to the current contention level, Upon each packet collision, a station doubles its CW to reduce further collision of packets. IEEE 802.11 Distributed Coordination Function (DCF) suffers from a common problem in erroneous channel. They cannot distinguish noise lost packets from collision lost packets. In both situations a station does not receive its ACK and doubles the CW to reduce further packet collisions. This increases backoff overhead unnecessarily in addition to the noise lost packets, reduces the throughput significantly. Furthermore, the aggregate throughput of a practical WLAN strongly depends on the channel conditions. In real radio environment, the received signal power at the access point from a station is subjected to deterministic path loss, shadowing and fast multipath fading. In this paper, we propose a new saturation throughput analysis for IEEE 802.11 DCF considering erroneous channel and capture effects. To alleviate the low performance of IEEE 802.11 DCF, we introduce a mechanism that greatly outperforms under noisy environment with low network traffic and compare their performances to the existing standards. We extend the multidimensional Markov chain model initially proposed by Bianchi(3) to characterize the behavior of DCF in order to account both real channel conditions and capture effects, especially in a high interference radio environment.
description: 8 Pages IEEE format, International Journal of Computer Science and Information Security, IJCSIS January 2010, ISSN 1947 5500, http://sites.google.com/site/ijcsis/
title: ÐÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐµÐºÐ»Ð°Ð¼Ð½Ð¾-Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÑÑ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ (ÐÐ° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐÐ Â«Ð¢Ð Ð­ÐÐÐ-ÐÐ ÐÐ¡Ð¡Â»)
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: Ð¡ÑÐ·Ð¸Ð½, ÐÐ¸ÑÐ°Ð¸Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: ÑÐµÐºÐ»Ð°Ð¼Ð°
ÐºÐ¾Ð¼Ð¼ÑÐ½Ð¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¿ÑÐ¾ÑÐµÑÑ

description: Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð°ÑÐ¿ÐµÐºÑÑ ÑÐµÐºÐ»Ð°Ð¼Ð½Ð¾-Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. ÐÑÑÐ²Ð»ÐµÐ½Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ, ÐºÐ¾ÑÐ¾ÑÑÐµ Ð´Ð¾Ð»Ð¶Ð½Ð° ÑÐµÑÐ°ÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐµÐºÐ»Ð°Ð¼Ð½Ð¾-Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. ÐÐ° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ ÐÐÐ Â«Ð¢Ð Ð­ÐÐÐ ÐÐ ÐÐ¡Ð¡Â» Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐµÐ¹ ÑÐµÐºÐ»Ð°Ð¼Ð½Ð¾-Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ, ÐºÐ¾ÑÐ¾ÑÑÐµ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ ÑÐ¾Ð²ÐµÑÑÐ°ÑÑ, Ð´Ð»Ñ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð´Ð°Ð¶ Ð¸ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ ÑÐ¾Ð²Ð°Ñ Ð¸ ÑÑÐ»ÑÐ³.
title: ÐÑÐ°Ð²Ð¾Ð²Ð¾Ð¹ ÑÐµÐ¶Ð¸Ð¼ Ð·ÐµÐ¼ÐµÐ»Ñ Ð¸ ÐµÐ³Ð¾ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐ°ÐºÑÐ¸Ð¼Ð¾Ð²Ð°, ÐÐ»ÐµÐ½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: Ð·ÐµÐ¼ÐµÐ»ÑÐ½Ð¾Ðµ Ð¿ÑÐ°Ð²Ð¾

description: Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾Ð¼Ñ ÑÑÐ°Ð½Ð´Ð°ÑÑÑ Ð²ÑÑÑÐµÐ³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¤ÐµÐ´ÐµÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð°Ð²ÑÐ¾Ð½Ð¾Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÑÑÐµÐ¶Ð´ÐµÐ½Ð¸Ñ Ð²ÑÑÑÐµÐ³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Â«Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾Â».
ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð², Ð°ÑÐ¿Ð¸ÑÐ°Ð½ÑÐ¾Ð², Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°ÑÐµÐ»ÐµÐ¹ ÑÑÐ¸Ð´Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ°ÐºÑÐ»ÑÑÐµÑÐ¾Ð² Ð²ÑÐ·Ð¾Ð², ÑÐ°Ð±Ð¾ÑÐ½Ð¸ÐºÐ¾Ð² Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½ÑÑ Ð¸ Ð¼ÑÐ½Ð¸ÑÐ¸Ð¿Ð°Ð»ÑÐ½ÑÑ Ð¾ÑÐ³Ð°Ð½Ð¾Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ.
WOMEN ARTISTS’ TELEVISION Artists’ television from the 1970s to 2000s: Broadcast experiments and interventions into television by and about British-based women artists’, producers and commissioners. Doctoral research project
Creators: name: Hall, Deborah
Publisher: name: University of Westminster
Year: 2025

description: This PhD critically examines thirty years of television art practice by women artists and producers in the UK. The research aims to question and challenge women’s TV art in the mainstream broadcast sector and trace its development to the present date as moving image and its future manifestations including streaming and social media. This PhD also places these questions in a historical context, surveying the often-overlooked developments of women artists’ TV art exhibition, production, and intervention.

The research was developed from qualitative email interviews with women TV artists and three key UK-based female TV arts producers, as well as critically writing many original case studies on women artists’ experimental practice. Alongside the six chapters and the conclusion, I have researched and written a substantial case study chapter on Tamara Krikorian, a forgotten modernist pioneer female TV artist and ‘sculptor of the air’.

Moreover, to summarise my outcomes and highlight what is new and significant about my findings, I have identified a new field of practice based on experimental broadcast interventions interrupting or intervening the flow of mainstream television by women artists and producers from 1971 to 2024. More recently, there are also feminist interventions in streaming viewed on Netflix and MUBI alongside mainstream and experimental films.

Two other key findings of my research are firstly, a critical case study of Tamara Krikorian, an early modern pioneer video and TV artist and ‘sculptor of the air’ who has been unrecognised and ignored by women TV art producers and the art world. Secondly, I have located and identified women TV art producers that have been acting as enablers and collaborators with male and female TV artists and this collaborative liaison has made the work a more democratic working practice and process.

My research ultimately reveals the results underpinning my rationale and research questions and what they mean. An art historical approach to women’s TV art can result in innovative and experimental findings outside the mainstream due to an attention to form and substance and the context of the TV artworks. It has done this by applying new paradigms and examples to a feminist reading of the history of TV art, and since my work is feminist and qualitative, as a result I have developed a feminist qualitative paradigm. This has made a socio-political and art historical worldview possible.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ ÑÐ°ÑÑÑÑÐ° Ð²ÐµÑÑÐ¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð¼Ð¾ÑÑÐºÐ¾Ð³Ð¾ Ð±Ð°Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð° Ð³Ð»ÑÐ±Ð¸Ð½Ð°Ñ Ð´Ð¾ 30 Ð¼
title: Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ
titleType: Subtitle
Creators: name: ÐÐ°ÑÑÐ³Ð¸Ð½, ÐÐ»ÐµÐºÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: ÐÐµÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸
Ð¤ÑÐ½Ð´Ð°Ð¼ÐµÐ½ÑÑ
ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð½Ð°Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑ
Ð½ÐµÑÑÑÐ°Ñ ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÑ
Ð²Ð¾Ð»Ð½Ð¾Ð²ÑÐµ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸
Ð»ÐµÐ´Ð¾Ð²ÑÐµ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸

description: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÑÑÑ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð²Ð¸Ð´Ð¾Ð² Ð¾ÑÑÐ¾ÑÐ½ÑÑ ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½ÑÐ¾Ð² Ð´Ð»Ñ Ð²ÐµÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 2.0 ÐÐÑ Ð´Ð»Ñ Ð³Ð»ÑÐ±Ð¸Ð½ Ð´Ð¾ 30 Ð¼. Ð¡Ð¾Ð³Ð»Ð°ÑÐ½Ð¾ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð¾Ð¹ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐµ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÑÐ½ ÑÐ°ÑÑÑÑ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½ÑÐ° Ð´Ð»Ñ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ Ð°ÐºÐ²Ð°ÑÐ¾ÑÐ¸Ð¸ Ð¤Ð¸Ð½ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð»Ð¸Ð²Ð° Ð±Ð»Ð¸Ð· Ð¾ÑÑÑÐ¾Ð²Ð° ÐÐ¾ÑÐ»Ð¸Ð½. Ð¡Ð¾Ð·Ð´Ð°Ð½Ð½ÑÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ ÑÐ±Ð¾ÑÐ° Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº Ð²ÐºÐ»ÑÑÐ°ÐµÑ ÑÐ°ÑÑÑÑ Ð»ÐµÐ´Ð¾Ð²ÑÑ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº, Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº Ð½Ð° Ð¿ÑÐ¸Ð²Ð°Ð»Ð¾ÑÐ½ÑÑ Ð¿Ð»Ð¾ÑÐºÐ¾ÑÑÑ ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½ÑÐ° ÐÐ­Ð£, Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ð¸Ðµ Ð²Ð¾Ð»Ð½Ð¾Ð²ÑÑ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº Ð¸ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº Ð¾Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð²ÐµÑÐ° ÐÐ­Ð£ Ð¸ ÐµÑ ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½ÑÐ°. ÐÐ»Ñ Ð¿Ð¾Ð´Ð¾Ð±ÑÐ°Ð½Ð½ÑÑ ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½ÑÐ¾Ð² Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° Ð¾ÑÐµÐ½ÐºÐ° ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸, Ð¿Ð¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ ÐºÐ¾ÑÐ¾ÑÐ¾Ð¹ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½ÑÐ¼ Ð² Ð·Ð°Ð´Ð°Ð½Ð½ÑÑ ÑÑÐ»Ð¾Ð²Ð¸ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¿Ð¸Ð»Ð¾Ð½Ð½ÑÐ¹ ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½Ñ.
Hubble osserva l’asteroide trasformista
Creators: Marco Galliani
Publisher: name: Media Inaf
Year: 2016

Asteroide sì, ma anche un po' cometa. A studiare meglio la natura di questo particolare oggetto che orbita nel nostro Sistema solare ci ha pensato il team di ricercatori guidato da David Jewitt dell'Università della California, a Los Angeles grazie alle riprese del telescopio spaziale di NASA ed ESA
China-United States-Timor-Leste Trilateral Aid Cooperation Project on Agriculture
Creators: name: Zhang, Denghua
Publisher: name: Canberra, ACT : Coral Bell School of Asia Pacific Affairs, College of Asia and the Pacific, The Australian National University
Year: 2015

description: China's trilateral aid cooperation has been growing in recent years along with its overseas development assistance program. As the largest emerging donor, China's trilateral aid cooperation with the United States (US), the leading traditional donor, and Timor-Leste presents an interesting example to examine this new model of aid delivery in the changing international aid landscape. This trilateral project, together with the China– Australia–Papua New Guinea trilateral project on malaria control, and the China–United Nations Development Programme–Cambodia trilateral project on cassava, make up the three case studies for my PhD program on Chinese trilateral aid cooperation. It is the first trilateral aid cooperation between China and the US in Timor-Leste and in the Asia–Pacific region. This paper summarises some research findings arising from my fieldwork in Dili from January to February 2015.
Analysis of the stellar population in the central area of the HII region Sh 2-284
Creators: name: Delgado, Antonio J.
name: Djupvik, Anlaug A.
name: Alfaro, Emilio J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: There is a lack of state-of-the-art information on very young open clusters, with implications for determining the structure of the Galaxy. Our main objective is to study the timing and location of the star formation processes which yielded the generation of the giant HII region Sh 2-284. The analysis is based on UBVRcIc CCD measurements and JHKs photometry in the central part of the HII region, where the cluster Dolidze 25 is located.The determination of cluster distance, reddening and age is carried out through comparison with ZAMS, post-MS and PMS isochrones. Reference lines for metallicity Z=0.004 are used, in agreement with spectroscopic metallicity determination published for several cluster members. The results are: E(B-V)=0.78+-0.02, M=12.8+-0.2, LogAge(yr)=6.51+-0.07. A PMS member sequence is proposed, coeval within the errors with the post-MS cluster age (LogAge(yr)=6.7+-0.2). The mass function for this PMS population in the mass range above 1.3-3.5 Msun is well fitted by a Salpeter mass function.The presence of a different star generation in the cluster with a distinctly older age, around 40 Myr, is suggested. The NIR results indicate a large number of sources with H-Ks excess, practically distinct from the optical PMS candidate members. The distance determined for the cluster is distinctly lower than previously published values. This result originates in the consistent use of low metallicity models for ZAMS fitting, applying published metallicity values for the cluster.
description: gzipped tar file: 1 aa.cls, 1 tex file, 1 bbl file, 13 figures. Accepted in Astronomy & Astrophysics (9.11.2009)
title: Ð£Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÐ¼Ð¸ ÑÐ¸ÑÐºÐ°Ð¼Ð¸ Ð² ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ¾Ð¼ Ð±Ð°Ð½ÐºÐµ "Agricultural Bank of China Limited"
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
Creators: name: Ð¥ÑÐ°Ð½ ÐÐ¸
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ¸Ðµ Ð±Ð°Ð½ÐºÐ¸
ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÐµ ÑÐ¸ÑÐºÐ¸
ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐ¸ÑÐºÐ°Ð¼Ð¸
ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÐ¹ Ð¼ÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½Ñ

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÑÑÑ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÑ ÑÐ¸ÑÐºÐ¾Ð² Ð² Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ¾Ð³Ð¾ Ð±Ð°Ð½ÐºÐ°, Ð° ÑÐ°Ðº Ð¶Ðµ ÑÑÑÐ½Ð¾ÑÑÑ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð° Ðº ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÐ¼Ð¸ ÑÐ¸ÑÐºÐ°Ð¼Ð¸ Ð² ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ¾Ð¼ Ð±Ð°Ð½ÐºÐµ. ÐÐ°Ð½Ð° ÐºÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ ÑÐ¸ÑÐºÐ¾Ð² Ð¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸Ð¼Ð¸. ÐÐ¾ Ð²ÑÐ¾ÑÐ¾Ð¹ Ð³Ð»Ð°Ð²Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÑ ÑÐ¸ÑÐºÐ¾Ð² Ð¸ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÑ Ð¿ÑÐ¸ÑÐ¸Ð½ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÑ ÑÐ¸ÑÐºÐ¾Ð² Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐºÐ¸ÑÐ°Ð¹ÑÐºÐ¾Ð³Ð¾ ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ¾Ð³Ð¾ Ð±Ð°Ð½ÐºÐ° "Agricultural Bank of China Limited". Ð ÑÑÐµÑÑÐµÐ¹ Ð³Ð»Ð°Ð²Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð° Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÑÑÐ°ÑÐµÐ³Ð¸Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÐ¸ÑÐºÐ°Ð¼Ð¸ Ð² ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ¾Ð¼ Ð±Ð°Ð½ÐºÐµ "Agricultural Bank of China Limited".
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ð½ÑÑ Ð²Ð¾Ð¿ÑÐ¾ÑÐ¾Ð² Ð±ÑÑ Ð³Ð°Ð»ÑÐµÑÑÐºÐ¾Ð³Ð¾ ÑÑÐµÑÐ° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ² (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐÐ "ÐÑÐ¾ÑÐÐ¾ÑÑÐ°Ð²ÐºÐ°")
title: Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ
titleType: Subtitle
Creators: name: Ð¡ÐµÑÐ´ÑÐºÐ¾Ð²Ð°, ÐÐ½Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÑÐµÐ´ÑÑÐ²Ð°
Ð¸Ð½Ð²ÐµÐ½ÑÐ°ÑÐ¸Ð·Ð°ÑÐ¸Ñ
ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ°Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ
Ð±ÑÑ Ð³Ð°Ð»ÑÐµÑÑÐºÐ¸Ð¹ ÑÑÐµÑ

description: Ð¦ÐµÐ»ÑÑ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð²Ð¾Ð¿ÑÐ¾ÑÐ¾Ð², Ð¸Ð·ÑÑÐµÐ½Ð¸Ðµ ÑÑÐµÑÐ° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ² Ð½Ð° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÑÐµÑÐ° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ² Ð¸ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¸Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ. ÐÑÐ»Ð¸ Ð¸Ð·ÑÑÐµÐ½Ñ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¾ÑÐ½Ð¾Ð²Ñ ÑÑÐµÑÐ° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ². Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¾ Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½Ð¾Ðµ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÐµÑÐ° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ², ÑÑÑÐµÑÑÐ²ÑÑÑÐ°Ñ Ð¸Ñ ÐºÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ² Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½ Ð±ÑÑÐ³Ð°Ð»ÑÐµÑÑÐºÐ¸Ð¹ ÑÑÐµÑ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÑÐ±ÑÐµÐºÑÐ°. Ð ÑÐ°ÑÑÐ½Ð¾ÑÑÐ¸ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾-ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ°Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ° Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸, Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÐ¸Ð½ÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¸ Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÑÐµÑÐ° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ². Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÑÐµÑÐ° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ² Ð¸ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¸Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð½ÑÑ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ, Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÐµ Ð½Ð° ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð±ÑÑÐ³Ð°Ð»ÑÐµÑÑÐºÐ¾Ð³Ð¾ ÑÑÐµÑÐ° Ð¸ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ².
E luce fu nell’universo primordiale
Creators: Stefano Parisini
Publisher: name: Media Inaf
Year: 2016

Confermata la scoperta della quinta galassia super luminosa primordiale, risalente all’epoca della reionizzazione, quando la prima generazione di stelle rendeva via via più trasparente l’universo, dando alla luce la possibilità di propagarsi fino a noi. Emettevano talmente tanta radiazione ultravioletta da riuscire a scavare una bolla di idrogeno ionizzato attorno a loro
ALPAR _ EFFECTIVE TEACHING METHODOLOGIES THROUGH RESEARCH-BASED LEARNING AND CREATIVITY DEVELOPMENT.pdf
Creators: name: Dr. Alpár, Vera
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 390201
subject: Education policy
classificationCode: 390299
subject: Education policy, sociology and philosophy not elsewhere classified
classificationCode: 390203
subject: Sociology of education
classificationCode: 390409
subject: Learning sciences
classificationCode: 520599
subject: Social and personality psychology not elsewhere classified

description: This article examines the integration of research-based learning into higher education methodologies, focusing on how this approach enhances students' intellectual development and creativity. The primary aim is to explore how research-driven strategies can be applied to foster deeper learning, critical thinking, and innovation in students. The article investigates several key educational theories and models that support the development of research skills and creativity, including Constructivist Learning Theory (Piaget, 1976; Bruner, 1961), Experiential Learning Theory (Kolb, 1984), Nonaka and Takeuchi’s SECI Model (1995), and Creativity Development Models (Amabile, 1996; Wallas, 1926).The research objectives include:To analyze the role of research-based learning in enhancing critical thinking and problem-solving skills.To evaluate the effectiveness of Inquiry-Based Learning (IBL) and Problem-Based Learning (PBL) in developing independent research capabilities.To assess the impact of creativity-focused models on student engagement and innovation within research contexts.To demonstrate the application of the SECI Model in transforming tacit knowledge into explicit knowledge through collaborative learning processes.The article also discusses practical recommendations for educators on how to design curricula and teaching practices that prioritize research-based methods, enabling students to actively engage in knowledge creation, collaboration, and problem-solving. By incorporating these educational theories and models into teaching practices, the article concludes that research-based learning not only improves subject knowledge but also fosters critical lifelong learning skills essential for professional and academic success.
Planet migration in three-dimensional radiative discs
Creators: name: Kley, Willy
name: Bitsch, Bertram
name: Klahr, Hubert
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The migration of growing protoplanets depends on the thermodynamics of the ambient disc. Standard modelling, using locally isothermal discs, indicate in the low planet mass regime an inward (type-I) migration. Taking into account non-isothermal effects, recent studies have shown that the direction of the type-I migration can change from inward to outward. In this paper we extend previous two-dimensional studies, and investigate the planet-disc interaction in viscous, radiative discs using fully three-dimensional radiation hydrodynamical simulations of protoplanetary accretion discs with embedded planets, for a range of planetary masses. We use an explicit three-dimensional (3D) hydrodynamical code NIRVANA that includes full tensor viscosity. We have added implicit radiation transport in the flux-limited diffusion approximation, and to speed up the simulations significantly we have newly adapted and implemented the FARGO-algorithm in a 3D context. First, we present results of test simulations that demonstrate the accuracy of the newly implemented FARGO-method in 3D. For a planet mass of 20 M_earth we then show that the inclusion of radiative effects yields a torque reversal also in full 3D. For the same opacity law used the effect is even stronger in 3D than in the corresponding 2D simulations, due to a slightly thinner disc. Finally, we demonstrate the extent of the torque reversal by calculating a sequence of planet masses. Through full 3D simulations of embedded planets in viscous, radiative discs we confirm that the migration can be directed outwards up to planet masses of about 33 M_earth. Hence, the effect may help to resolve the problem of too rapid inward migration of planets during their type-I phase.
description: 16 pages, Astronomy&Astrophysics, in press
Unusual Trends in Solar P-Mode Frequencies During the Current Extended Minimum
Creators: name: Tripathy, S. C.
name: Jain, K.
name: Hill, F.
name: Leibacher, J. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the behavior of the intermediate-degree mode frequencies of the sun during the current extended minimum phase to explore the time-varying conditions in the solar interior. Using contemporaneous helioseismic data from GONG and MDI, we find that the changes in resonant mode frequencies during the activity minimum period are significantly greater than the changes in solar activity as measured by different proxies. We detect a seismic minimum in MDI p-mode frequency shifts during 2008 July--August but no such signature is seen in mean shifts computed from GONG frequencies. We also analyze the frequencies of individual oscillation modes from GONG data as a function of latitude and observe a signature of the onset of the solar cycle 24 in early 2009. Thus the intermediate degree modes do not confirm the onset of the cycle 24 during late 2007 as reported from the analysis of the low-degree GOLF frequencies. Further, both the GONG and MDI frequencies show a surprising anti-correlation between frequencies and activity proxies during the current minimum, in contrast to the behavior during the minimum between cycles 22 and 23.
description: Accepted for publication in ApJ Letters
Cosa rende un pianeta abitabile?
Creators: Elisa Nichelli
Publisher: name: Media Inaf
Year: 2016

Uno studio pubblicato di recente sulla rivista Astrobiology suggerisce che la nostra definizione di abitabilità potrebbe non essere legata così a doppio filo alla distanza del pianeta dalla propria stella. I dati raccolti dagli strumenti di prossima generazione sui sistemi planetari in formazione potrebbero fornirci una risposta. Con il commento di Giuseppe Piccioni (INAF)
The effects of perceptual training on the production qualities of nonnative speech
Creators: name: Rinzler, Ana Noelle
Publisher: name: No Publisher Supplied
Year: 2023

description: A recent study demonstrated that high-variability perceptual training (HVPT) helped native Cantonese-speaking adults distinguish among English words that differ in the voicing quality of the final phoneme (e.g., unvoiced or voiced, as in tap vs. tab) (Shum, Kit-fong Au, Romo & Jun, 2021). Using the production data from Shum et al.’s (2021) study, we investigated whether the production qualities of their speech were also influenced by training. Research shows that training can make second language (L2) speech more comprehensible, but the impact training has on L2 acoustic features is not fully understood.The present thesis addressed this gap by measuring L2 comprehensibility (Study 1), conducting fine-grained analyses on select L1 and L2 acoustic features of L2 speech (Study 2), and examining the acoustic qualities of the English stimuli (Study 3). While L2 comprehensibility did not improve after training, L2 speakers tended to use acoustic features found in English (i.e., vowel duration) rather than Cantonese (i.e., aspiration) in production.Further inspection of the data suggested that L2 productions that were acoustically more English- like, were also more comprehensible. Lastly, an examination of the English stimuli revealed that vowel duration was robust, perhaps leading L2 speakers to perceive, and later implement vowel duration differences during production.These findings suggest that the specific qualities associated with training stimuli can influence the degree to which training is successful. More research is needed to investigate the link between L2 perception and production to fully understand how the perception of robust cues may influence production.
Malignant coloduodenal fistula
Creators: name: Costa, AntÃ³nio
Publisher: name: EURORAD
Year: 2015
Subjects: subject: Abdomen
subject: CT-High Resolution
subject: Diagnostic procedure
subject: Neoplasia

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 87 years
description: Clinical History: The patient presented with a two-weeks history of nausea, vomiting, hematemesis, hematochezia and weight loss.Clinical history included chronic gastritis and duodenal ulcer.At physical examination the patient was pale, dehydrated and hypotensi... Final Diagnosis: Malignant coloduodenal fistula due to colonic tumour.
Il getto radio del buco nero cannibale
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2016

Anche la rete di radiotelescopi dell'European VLBI Network (EVN) ha osservato le potenti emissioni radio del getto emesso dal colossale buco nero denominato Swift J1644+57 che cinque anni fa era stato colto nell'atto di fagocitare una stella avvicinatasi troppo ad esso. Il commento di Steven Tingay (INAF)
title: ÐÐ¾ÑÐ¸Ð²Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¾ÑÐ½Ð¾Ð²Ñ ÑÑÐ½ÐºÐ°
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐµÐ´Ð¸Ð½ÑÐºÐ¸Ð¹, ÐÐ¸ÐºÐ¾Ð»Ð°Ð¹
Publisher: name: Ð¡ÐÐ±ÐÐ¢Ð­Ð£
Year: 2014
Subjects: Ð¼Ð¾ÑÐ¸Ð²Ð°ÑÐ¸Ñ
ÑÑÐ½Ð¾Ðº ÑÑÑÐ´Ð°
ÑÐµÐ»Ð¾Ð²ÐµÑÐµÑÐºÐ¸Ð¹ ÐºÐ°Ð¿Ð¸ÑÐ°Ð»

description: Ð Ð¿ÑÐµÐ´Ð»Ð°Ð³Ð°ÐµÐ¼Ð¾Ð¼ ÑÑÐµÐ±Ð½Ð¾Ð¼ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ð¸ Ð³Ð»Ð°Ð²Ð½Ð¾Ðµ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ ÑÐ´ÐµÐ»ÐµÐ½Ð¾ Ð´Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÑÑÑÐ²Ñ ÑÐ¾Ð³Ð¾, ÑÑÐ¾ ÑÑÐµÑÐµÐ½Ð½Ð¾Ðµ Ð¿Ð¾Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ Ð¼Ð¾ÑÐ¸Ð²Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐµÑÑÐ° ÐºÐ°Ðº Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¸ Ð°Ð´Ð¼Ð¸Ð½Ð¸ÑÑÑÐ°ÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÑÐ¸Ð¼ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ, Ð² Ð»ÑÑÑÐµÐ¼ ÑÐ»ÑÑÐ°Ðµ, Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¸Ñ Ðº Ð´Ð¾ÑÑÐ¸Ð¶ÐµÐ½Ð¸Ñ ÐºÑÐ°ÑÐºÐ¾ÑÑÐ¾ÑÐ½ÑÑ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐµÐ»ÐµÐ¹ Ð¸ ÑÐ¸ÑÐ¼Ð¸Ð½ÑÑÐ½Ð¾Ð¹ Ð¿ÑÐ¸Ð±ÑÐ»Ð¸, Ð½Ð¾ Ð½Ð¸ÐºÐ°Ðº Ð½Ðµ Ðº Ð´Ð¾Ð»Ð³Ð¾ÑÑÐ¾ÑÐ½Ð¾Ð¼Ñ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð°.
ÐÐ¾Ð»Ð³Ð¾ÑÑÐ¾ÑÐ½ÑÐ¹ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ¾ÑÑ Ð¿ÑÐµÐ´Ð¿Ð¾Ð»Ð°Ð³Ð°ÐµÑ ÑÐµÐ³Ð¾Ð´Ð½Ñ ÑÐ¸ÑÐ¾ÐºÐ¸Ðµ Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¸, ÑÐ²Ð¾ÑÑÐµÑÐºÐ¸Ð¹ Ð¼ÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½Ñ, Ð¿ÑÐµÐ´Ð¿ÑÐ¸Ð¸Ð¼ÑÐ¸Ð²Ð¾ÑÑÑ ÑÐ°Ð¼Ð¸Ñ ÑÐ°Ð±Ð¾ÑÐ½Ð¸ÐºÐ¾Ð². ÐÐ¾ÑÑÐ¾Ð¼Ñ ÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ ÑÑÐ½Ð¾ÑÐ½Ð¾Ð¹ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐµ, ÑÑÐ¾Ð±Ñ ÑÑÐ°ÑÑ Ð½Ðµ Ð¿ÑÐ¾ÑÑÐ¾ ÑÐ°ÑÑÑÑÐµÐ¹, Ð° ÑÑÐ°Ð±Ð¸Ð»ÑÐ½Ð¾ ÑÐ°Ð·Ð²Ð¸Ð²Ð°ÑÑÐµÐ¹ÑÑ, Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ Ð¾Ð±ÑÐµÑÑÐ¸ Ð³ÑÐ¼Ð°Ð½Ð¸ÑÐ°ÑÐ½Ð¾-Ð¾ÑÐ¸ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐ¹ ÑÐ°ÑÐ°ÐºÑÐµÑ. ÐÐ¾ÑÐ¾Ð±Ð¸Ðµ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð¼Ñ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾Ð¼Ñ ÑÑÐ°Ð½Ð´Ð°ÑÑÑ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Â«ÐÐ¾Ð²ÐµÐ´ÐµÐ½ÑÐµÑÐºÐ°Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ°Â» Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ¾Ð¹ Ð¸ Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ¾Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ 38.03.01 Ð¸ 38.04.01 Â«Ð­ÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ°Â»; 39.03.01 Ð¸ 39.04.01 Â«Ð¡Ð¾ÑÐ¸Ð¾Ð»Ð¾Ð³Ð¸ÑÂ». ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð²ÑÐµÑ ÑÐ¾ÑÐ¼ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ.
China's Hukou Conversion Puzzle and the Impact of Hukou Reforms on Migrant Workers
Creators: name: Ning, Yiwen
Publisher: name: University of Chicago
Year: 2023
Subjects: subject: China
subject: Hukou Reform
subject: Migrant Workers

description: This paper examines "China's hukou conversion puzzle" -- although the state has enacted a series of reforms to lift the hukou restrictions over the past decades, the "luohu" intentions and behaviors of rural migrant in urban areas have fallen short of the state's expectations. By analyzing historical research and conducting interviews with 20 migrant workers, I provide first- hand insights on rural migrants' hukou conversion decision-making mechanisms. Furthermore, this paper studies the decentralized implementation of the hukou reform and how decentralization affects local governments' incentives and responsibilities to integrate rural migrants into their cities. Finally, this paper offers relevant policy recommendations to better integrate rural migrants into cities and identifies some potential challenges for meaningful hukou reforms in the future.
Umbilical hernia as the tip of the iceberg
Creators: name: Schmid, Johannes
Publisher: name: EURORAD
Year: 2015
Subjects: subject: Abdomen
subject: Abdominal wall
subject: CT
subject: Ultrasound
subject: Contrast agent-intravenous
subject: Diagnostic procedure
subject: Hernia
subject: Neoplasia

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 43 years
description: Clinical History: A 43yo female patient with a history of coeliac disease who was referred to sonography due to an umbilical swelling. She reported an increasingly bloated abdomen and weight loss, diffuse abdominal discomfort and soft stools for several months. The umbilic... Final Diagnosis: Pseudomyxoma peritonei due to a low-grade mucinous appendiceal neoplasia (LAMN)
Nascita violenta per le lune di Marte
Creators: Giuseppina Pulcrano
Publisher: name: Media Inaf
Year: 2016

Phobos e Deimos, i due satelliti di Marte, sono catturati dal Pianeta rosso? Finora questa era la risposta più accreditata ma due studi capovolgono questo scenario: le lune marziane sarebbero state generate a seguito di una gigantesca collisione cosmica
The Correlated Colors of Transneptunian Binaries
Creators: name: Benecchi, S. D.
name: Noll, K. S.
name: Grundy, W. M.
name: Buie, M. W.
name: Stephens, D. C.
name: Levison, H. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report resolved photometry of the primary and secondary components of 23 transneptunian binaries obtained with the Hubble Space Telescope. V-I colors of the components range from 0.7 to 1.5 with a median uncertainty of 0.06 magnitudes. The colors of the primaries and secondaries are correlated with a Spearman rank correlation probability of 99.99991%, 5 sigma for a normal distribution. Fits to the primary vs. secondary colors are identical to within measurement uncertainties. The color range of binaries as a group is indistinguishable from that of the larger population of apparently single transneptunian objects. Whatever mechanism produced the colors of apparently single TNOs acted equally on binary systems. The most likely explanation is that the colors of transneptunian objects and binaries alike are primordial and indicative of their origin in a locally homogeneous, globally heterogeneous protoplanetary disk.
description: 28 pages, 4 figure, 4 tables. accepted to Icarus
Doodle Google per la divina Juno
Creators: Davide Coero Borga
Publisher: name: Media Inaf
Year: 2016

Mountain View celebra l’arrivo della sonda NASA su Giove con un Doodle dedicato: il browser più famoso del mondo festeggia Juno. Con un nome da regina degli dei e tutta la migliore tecnologia italiana, riuscirà a dissipare le nubi in cui è avvolto il gigante del Sistema solare?
Abdominal splenosis mimicking ascending colon tumour
Creators: name: Rodrigues, MÃ¡Rcio
Publisher: name: EURORAD
Year: 2015
Subjects: subject: Abdomen
subject: CT
subject: MR
subject: Nuclear medicine conventional
subject: Ultrasound
subject: Diagnostic procedure
subject: Neoplasia
subject: Tissue characterisation

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 60 years
description: Clinical History: The patient had 30 pack-year smoking history and splenectomy in trauma context. She appealed to the attending physician for long-term fatigue and discomfort in the right hypochondrium. At physical examination there werenÃ¢ÂÂt significant changes. The analy... Final Diagnosis: Abdominal splenosis mimicking ascending colon tumour.
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title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: ÐÑÐ¾Ð·Ð´Ð¾Ð², ÐÐ³Ð¾ÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: Ð¼Ð°ÑÐ¸Ð½Ð½Ð¾Ðµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ðµ
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description: ÐÐ°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ Ð´Ð¸Ð¿Ð»Ð¾Ð¼Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¿Ð¾Ð¸ÑÐºÐ° Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐµÐ¹ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº Ð¾Ð±ÑÐµÐºÑÐ¾Ð². ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð¾Ð±Ð·Ð¾Ñ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¼Ð°ÑÐ¸Ð½Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ, ÑÐ¿Ð¾ÑÐ¾Ð±Ð½ÑÑ ÑÐµÑÐ¸ÑÑ Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÐµ Ð·Ð°Ð´Ð°ÑÐ¸, Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÐºÐ¾ÑÐ¾ÑÐ¾Ð³Ð¾ Ð´Ð°Ð½Ð° ÑÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½Ð°Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ° ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð².
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A cytomorphological study of Pelvetiopsis limitata (Setchell) Gardner
Creators: name: Zanon , Carol Aileen Rosemary (Hennigan),
Publisher: name: University of British Columbia
Year: 2012

description: A cytomorphological study of Pelvetiopsis limitata (Setchell) Gardner confirmed a cytological alternation of generations in the plant. Approximately thirty-two chromosomes in the haploid phase alternate with sixty-four chromosomes in the diploid phase. Pelvetiopsis is oogamous and monoecious. Antheridia and oogonia are produced in flask-shaped conceptacles. Nuclear division is regular in developing gametangia. Reduction of chromosome number appears to take place during the first nuclear division in the antheridium and oogonium. No centrosomes or chromophilous spherules are discernible during nuclear division. In the oogonium the two divisions of the meiotic sequence are followed by a mitotic division producing eight nuclei. Two eggs of unequal size are formed in the oogonium. The larger egg is uninucleate and functional, while the smaller is seven-nucleate. At maturity 4 to 16 chromocenters may be observed in the nucleus of the large egg prior to its liberation. Before the release of the large egg from the oogonium approximately 32 chromosomes differentiate as the nucleus enters mitotic prophase. The smaller egg formed in the oogonium usually disintegrates after extrusion from the conceptacle. The inner layers of the wall of the oogonium are soon discarded after liberation. Aberrant eggs occur. Two eggs of equal size may form or there may be as many as 5 eggs of various sizes. Binucleate eggs are sometimes present. In the antheridium 4 mitotic divisions follow meiosis producing 64 nuclei. The cytoplasm differentiates around each nucleus and 64 spermatozoids are formed. These are released by the rupture of the outer layer, and by gelatinization of the inner layer of the wall of the antheridium. Approximately 30 - 32 chromosomes were observed at the second nuclear division in the antheridial initial. Oogamy in Pelvetiopsis restores the diploid complement of approximately 64 chromosomes. Fertilization occurs after the gametes have been liberated from the conceptacle. The egg is naked at the time of fertilization. The first division of the zygote is transverse to the plane in which the rhizoid develops. One, sometimes two, primary rhizoids form. Several other septate rhizoids develop later. The anatomy of the thallus of Pelvetiopsis is similar to other Fucaceae. Cryptostomata are rare and caecostomata are absent. Sterilized filtered seawater cooled to 6° to 9°C provides a suitable medium in which Pelvetiopsis limitata may be grown in culture. A minimum light intensity of 250 foot-candles promotes satisfactory development.