cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Human Mesenchymal Stem Cells and Endothelial Progenitor Cells exert a neuroprotective effect on rat cortical neurons injured by oxygen and glucose deprivation
Creators: name: Donzelli, Elisabetta
name: Nicolini, Gabriella
name: Scuteri, Arianna
name: De Cristofaro, Valentina
name: Rigolio, Roberta
name: Ceresa, Cecilia
name: Miloso, Mariarosaria
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2015
Subjects: Mesenchymal stem cells; endothelial progenitor cells: oxygen and glucose deprivation; embryonic cortical neurons

description: Oxygen and glucose deprivation (OGD) due to ischemic events or trauma in the brain result in neuronal loss. The therapeutic approaches available inadequate and often the outcome is unfavorable for the patient or at least unpredictable. Stem cells could be useful for the treatment of OGD injured-neurons. Mesenchymal Stem Cells (MSCs), isolated from bone marrow as well as from various tissues, have poor immunogenicity and neuroprotective properties being able to alleviate ischemic brain injuries in animal models. The Endothelial Progenitor Cells (EPCs) are present at low frequencies both in the bone marrow and in the peripheral blood. They are thought to play a role in the recovery of cerebrovasculature integrity after stroke. In the present study we evaluated the potential neuroprotective effect of human MSCs and human EPCs on rat embryonic cortical neurons injured by OGD. OGD was induced by incubating the cortical neurons in a hypoxia chamber in a 95% N2 + 5% CO2 atmosphere at 37°C without glucose. To set up the experimental protocol, OGD was maintained for 1, 2 and 3 hours. The neurons were returned in normoxic atmosphere and after 2 and 5 days neuronal survival was evaluated by MTT assay, LDH assay and viable cellular counting. The 2 hours OGD was able to reduce neuronal viability by 50% and was chosen for the subsequent experiments. To assess MSCs and EPCs neuroprotective action, after 2 hours-long OGD the neurons were 1) co-cultured with either MSCs or EPCs seeded on a cell culture insert avoiding direct contact while sharing the same medium, or 2) cultured in a medium previously conditioned by either MSCs or EPCs. Neuronal survival was evaluated by MTT assay after 2 and 5 days. Both MSCs and EPCs increased neuronal survival after ODG. The effect was observed in absence of a direct contact between MSCs or EPCs and the injured neurons, suggesting that the release of soluble factors may be involved in their neuroprotective action. In conclusion both MSCs and EPCs could represent a potential therapeutic approach for the treatment of brain ischemic injury. Further studies are needed to identify the specific molecules and pathways that play a role in the neuroprotective effect of MSCs and EPCs.
description: Italian Journal of Anatomy and Embryology, Vol. 120, No. 1 (Supplement) 2015
Bifurcations of periodic and chaotic attractors in pinball billiards with focusing boundaries
Creators: name: Arroyo, Aubin
name: Markarian, Roberto
name: Sanders, David P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37M25 (Primary), 65P30 (Secondary)

description: We study the dynamics of billiard models with a modified collision rule: the outgoing angle from a collision is a uniform contraction, by a factor lambda, of the incident angle. These pinball billiards interpolate between a one-dimensional map when lambda=0 and the classical Hamiltonian case of elastic collisions when lambda=1. For all lambda<1, the dynamics is dissipative, and thus gives rise to attractors, which may be periodic or chaotic. Motivated by recent rigorous results of Markarian, Pujals and Sambarino, we numerically investigate and characterise the bifurcations of the resulting attractors as the contraction parameter is varied. Some billiards exhibit only periodic attractors, some only chaotic attractors, and others have coexistence of the two types.
description: 30 pages, 17 figures. v2: Minor changes after referee comments. Version with some higher-quality figures available at http://sistemas.fciencias.unam.mx/~dsanders/publications.html
title: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÐ°ÑÑÑ Ð¢Ð­Ð¦ Ñ 4 Ð±Ð»Ð¾ÐºÐ°Ð¼Ð¸ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 63 Ð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»Ð¾Ð½Ð¾Ð³Ð¾Ð², ÐÐ¸ÐºÐ¸Ñ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: ÑÐ»ÐµÐºÑÑÐ¾Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ
ÑÑÑÑÐºÑÑÑÐ½Ð°Ñ ÑÑ ÐµÐ¼Ð°
Ð³Ð»Ð°Ð²Ð½Ð°Ñ ÑÑ ÐµÐ¼Ð°
ÑÑ ÐµÐ¼Ð° ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´
ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ðµ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ðµ

description: Ð ÑÐ°Ð±Ð¾ÑÐµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ°ÑÑÐ¸ ÑÐµÐ¿Ð»Ð¾ÑÐ»ÐµÐºÑÑÐ¾ÑÐµÐ½ÑÑÐ°Ð»Ð¸. ÐÑÐ±ÑÐ°Ð½Ð° Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð°Ñ ÑÑÑÑÐºÑÑÑÐ½Ð°Ñ ÑÑÐµÐ¼Ð° Ð¸ Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ. Ð Ð°ÑÑÑÐ¸ÑÐ°Ð½Ñ ÑÐ¾ÐºÐ¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ. ÐÑÐ±ÑÐ°Ð½Ñ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑ Ð¸ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸ÐºÐ¸. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð³Ð»Ð°Ð²Ð½Ð°Ñ ÑÑÐµÐ¼Ð° ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹ Ð¸ ÑÑÐµÐ¼Ð° ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´.
The first galactic stars and chemical enrichment in the halo
Creators: name: Bonifacio, Piercarlo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The cosmic microwave background and the cosmic expansion can be interpreted as evidence that the Universe underwent an extremely hot and dense phase about 14 Gyr ago. The nucleosynthesis computations tell us that the Universe emerged from this state with a very simple chemical composition: H, 2H, 3He, 4He, and traces of 7Li. All other nuclei where synthesised at later times. Our stellar evolution models tell us that, if a low-mass star with this composition had been created (a "zero-metal" star) at that time, it would still be shining on the Main Sequence today. Over the last 40 years there have been many efforts to detect such primordial stars but none has so-far been found. The lowest metallicity stars known have a metal content, Z, which is of the order of 10e-4Z_Sun. These are also the lowest metallicity objects known in the Universe. This seems to support the theories of star formation which predict that only high mass stars could form with a primordial composition and require a minimum metallicity to allow the formation of low-mass stars. Yet, since absence of evidence is not evidence of absence, we cannot exclude the existence of such low-mass zero-metal stars, at present. If we have not found the first Galactic stars, as a by product of our searches we have found their direct descendants, stars of extremely low metallicity (Z<=10e-3Z_Sun). The chemical composition of such stars contains indirect information on the nature of the stars responsible for the nucleosynthesis of the metals. Such a fossil record allows us a glimpse of the Galaxy at a look-back time equivalent to redshift z=10, or larger. The last ten years have been full of exciting discoveries in this field, which I will try to review in this contribution.
description: Invited Review at IAU Symposium 265, "Chemical Abundances in the Universe: Connecting First Stars to Planets", K. Cunha, M. Spite & B. Barbuy, eds. Cambridge University Press p. 81
Longitudinal effects of COVID-19 stress on parent-child interactions
Creators: name: Ravindran, Niyantri
name: Balzarini, Rhonda
name: Zoppolat, Giulia
name: Merrin, Gabriel
name: Slatcher, Richard
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: We seek to test whether COVID-related stress is associated with the quality of parent-child interactions longitudinally and if this association is mediated by parental mood. Data collection is complete but no analyses have been conducted at this time.
Search for dark photons from supersymmetric hidden valleys
Creators: name: D0 Collaboration
name: Abazov, V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We search for a new light gauge boson, a dark photon, with the D0 experiment. In the model we consider, supersymmetric partners are pair produced and cascade to lightest neutralinos that can decay into the hidden sector state plus either a photon or a dark photon. The dark photon decays through its mixing with a photon into fermion pairs. We therefore investigate a previously unexplored final state that contains a photon, two spatially close leptons, and large missing transverse energy. We do not observe any evidence for dark photons and set a limit on their production.
description: submitted to PRL
Se il quasar ha i bassi un po’ attenuati
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2019

Un team internazionale di astrofisici ha scoperto che il getto di un quasar, a grandi lunghezze d’onda, è meno potente del previsto. Il risultato, pubblicato su The Astrophysical Journal, rappresenta un passo avanti nella comprensione dei processi all’origine dei jet emessi da questi mostri cosmici
title: Standing Committee on the Law of Trademarks, Industrial Designs and Geographical Indications :
title: Report adopted by the Standing Committee.
titleType: Subtitle
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 0

description: At its 12th session, which took place in Geneva from April 26 to 30, 2004, the Standing Committee on the Law of Trademarks, Industrial Designs and Geographical Indications (SCT), with due regard given to the progress which the SCT has made on the work of a revised Trademark Law Treaty (TLT), decided to recommend to the WIPO General Assembly to approve the convening of a diplomatic conference for the adoption of a revised Trademark Law Treaty in the first half of 2006, with the exact dates and venue for such a diplomatic conference to be decided by the preparatory meeting, and to hold two more sessions of the SCT prior to the holding of the diplomatic conference.
La vorticosa danza della baby stella binaria
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2019

Per la prima volta è stata osservata “in tempo reale” la nascita di un sistema binario con stelle di grande massa. Allo studio, pubblicato oggi sulla rivista Nature Astronomy, ha partecipato anche Maria Teresa Beltrán, ricercatrice dell’Istituto nazionale di astrofisica a Firenze
Crosstalk between Mesenchymal Stem Cells and tumor cells: the role of inflammation
Creators: name: Orciani, Monia
name: Sorgentoni, Giulia
name: Caffarini, Miriam
name: Sayeed, Md Abu
name: Lazzarini, Raffaella
name: Di Primio, Roberto
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2015
Subjects: MSCs; inflammation; paracrine effect; tumours

description: Mesenhymal Stem Cells (MSCs) are self-renewal multipotent cells that can be isolated from different adult tissues. There is a growing interest in the role exerted by MSCs in cancer progression. MSCs exhibit a marked tropism for tumors and par- ticipate to the creation of the stroma and related inflammation, which has a critical role in carcinogenesis, progression and metastasis. Nevertheless, while many studies showed that MSCs promote tumor progression and metastasis, others reported that MSCs suppress tumor growth. These contradictory results may be due to the origin of the MSCs, their degree of differentiation, the tumor model and other factors that are not yet elucidated. Aim of this work was to establish the role of the paracrine effect exerted by MSCs isolated from inflamed (I-MSCs) and control (C-MSCs) tis- sues towards human MCF7 and KI-JK cell lines, respectively derived from a breast cancer and an anaplastic large T cell lymphoma (ALCL). After stemness characteriza- tion, MSCs were indirectly co-cultured with MCF7 or KI-JK for 7 days; subsequently the proliferation rate and the expression of specific genes were tested. Genes were selected according to their role in inflammation and cancer previously reported in literature and explicate their action by different mechanisms: chemokines with pro- (CXCL2, CXCL9) or anti-angiogenic effect (CXCL10); chemokines (CCL2, CXCL12, CXCL5) for the recruitment of myeloid-derived suppressor cells (MDSCs); interleu- kins distinctive for chronic (IL2, IL4) and acute (IL8, IL16) inflammation; cytokines belonging to the Th2 subset (CCL22, IL13, IL22, CCL17, CCL18); cytokines (IL6, IL10 and TGFβ1) involved in the manipulation of the antigen-presenting cells function. Our data confirm a role of MSCs in cancer; an increase of pro-angiogenic chemokines as well as of interleukin related to acute phase of inflammation, a general switch of the T cell response from the Th1 cell subset to the Th2 subset and the induction of MDSCs were observed. Surprisingly, these effects have been mainly found in both cancer cell lines after co-culture with C-MSCs; it may mean that I-MSCs, suffering of chronic inflammation, are less responsive than C-MSCs to new stress/stimuli. Fur- ther experiments will be necessary to better address the role of MSCs and inflamma- tion on cancer progression; nevertheless, this study highlight as MSCs are not simply guardian but active actors in cancer fate.
description: Italian Journal of Anatomy and Embryology, Vol. 120, No. 1 (Supplement) 2015
title: Ð¡ÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð½Ð° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐ±ÑÑÐ¾Ð²Ð°, ÐÐºÐ°ÑÐµÑÐ¸Ð½Ð°
Publisher: name: ÐÐ·Ð´-Ð²Ð¾ ÐÐ¾Ð»Ð¸ÑÐµÑÐ½. ÑÐ½-ÑÐ°
Year: 2007
Subjects: ÐÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½ÑÐµ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ

description: 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¡ÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¼ÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½ÑÂ» Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ¾Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ 080500 Â«ÐÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½ÑÂ». ÐÑÐ²ÐµÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð²Ð¾Ð¿ÑÐ¾ÑÑ, ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÐµ ÑÐ¾ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¸Ð¼ ÑÐ¿ÑÐ°Ð²Ð»ÐµÂ­Ð½Ð¸ÐµÐ¼ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ. ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð¾Ð² Ðº ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐ¼ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ð°Ð¼ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ Ð²Ð¾Ð¿ÑÐ¾ÑÑ Ð¸ÑÑÐ¾Â­ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐ¾ÑÐµÐº Ð·ÑÐµÐ½Ð¸Ñ. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÑÐ°Ð¿Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð²ÑÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¸ Ð¿ÑÐ¸Ð½ÑÑÐ¸Ñ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐµÑÐµÐ½Ð¸Ð¹: Ð¿Ð¾ÑÑÐ´Ð¾Ðº Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð²Ð½ÑÑÑÐµÐ½Ð½ÐµÐ¹ Ð¸ Ð²Ð½ÐµÑÐ½ÐµÐ¹ ÑÑÐµÐ´Ñ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸, ÑÐ¸ÑÑÐµÐ¼Ð° ÑÐµÐ»ÐµÐ¿Ð¾Ð»Ð°Ð³Ð°Ð½Ð¸Ñ, Ð²Ð°ÑÐ¸Ð°Ð½ÑÑ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÂ­ÑÐºÐ¸Ñ ÑÐµÑÐµÐ½Ð¸Ð¹ Ð¸ ÑÑÐ»Ð¾Ð²Ð¸Ñ Ð¸Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ, ÑÑÐ°Ð¿ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ Ð²Ð¾Ð¿ÑÐ¾ÑÑ, ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÐµ ÑÐ¾ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¸Ð¼ ÐºÐ¾Ð½ÑÑÐ¾Ð»ÐµÐ¼. ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÐ¸ 080502 Â«Ð­ÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ° Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð½Ð° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸ (Ð¿Ð¾ Ð¾ÑÑÐ°ÑÐ»ÑÐ¼)Â», Ð° ÑÐ°ÐºÐ¶Ðµ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð¸ ÑÐ»ÑÂ­ÑÐ°ÑÐµÐ»ÐµÐ¹ Ð²ÑÐµÑ ÑÐ¾ÑÐ¼ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ ÑÐ°ÐºÑÐ»ÑÑÐµÑÐ° ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¸ Ð¸ Ð¼ÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½ÑÐ°, Ð²ÐµÂ­ÑÐµÑÐ½ÐµÐ³Ð¾ ÑÐ°ÐºÑÐ»ÑÑÐµÑÐ° ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¹, ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¸ Ð¸ Ð¼ÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½ÑÐ°.
description: ÐÐµÑÐ°ÑÐ°ÐµÑÑÑ Ð¿Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐµÐ´Ð°ÐºÑÐ¸Ð¾Ð½Ð½Ð¾-Ð¸Ð·Ð´Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ ÑÐ¾Ð²ÐµÑÐ° Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¾Ð³Ð¾ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ°.
On the quantum statistical theory of thermal conductivity
Creators: name: Griffin, Peter Allan
Publisher: name: University of British Columbia
Year: 2011

description: A critical survey of the present state of the quantum statistical theory of thermal conductivity is given. Recently several attempts have been made to extend Kubo's treatment of electrical conduction to other irreversible transport processes in -which the interaction between the driving system and the system of interest is not precisely known. No completely satisfactory solution of the problems involved is contained in the literature. In this thesis, a detailed derivation of a Kubo-type formula for thermal conductivity is given, using essentially the concepts and methods of Nakajima and Mori, with no pretense that it settles the problem completely. Some general remarks are made on the evaluation of a Kubo-type expression, in particular, the use of Van Hove's master equations and the reduction of the usual N-particle formula to a single particle formula. An explicit calculation of thermal conductivity is made for the simple model of elastic electron scattering by randomly distributed, spherically symmetric impurities.
Transport properties of the layered Rh oxide K_0.49RhO_2
Creators: name: Shibasaki, S.
name: Nakano, T.
name: Terasaki, I.
name: Yubuta, K.
name: Kajitani, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report measurements and analyses of resistivity, thermopower and Hall coefficient of single-crystalline samples of the layered Rh oxide K_0.49RhO_2. The resistivity is proportional to the square of temperature up to 300 K, and the thermopower is proportional to temperature up to 140 K. The Hall coefficient increases linearly with temperature above 100 K, which is ascribed to the triangular network of Rh in this compound. The different transport properties between Na_xCoO_2 and K_0.49RhO_2 are discussed on the basis of the different band width between Co and Rh evaluated from the magnetotransport.
description: 3 figures, submitted to PRB
Gaia confusa dai getti degli Agn
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2019

Da un confronto tra i dati di Gaia e quelli dei radiotelescopi è emerso un errore sistematico nelle misure fatte dal telescopio spaziale Esa circa le coordinate di un'intera classe di oggetti celesti, i nuclei galattici attivi. Le mappe spaziali più accurate sono quelle che si basano su osservazioni orbitali corrette con quelle dei radiotelescopi terrestri. Tutti i dettagli su ApJ
Isolation and characterization of cancer stem cells in head and neck squamous cell carcinoma
Creators: name: Palmieri, Annalisa
name: Martinelli, Marcella
name: Scapoli, Luca
name: Pezzetti, Furio
name: Cura, Francesca
name: Carinci, Francesco
name: Lo Muzio, Lorenzo
name: Iapichino, Anastasia
name: Caramelli, Elisabetta
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2015
Subjects: Cancer stem cells; head and neck cancer; gene expression

description: The hypothesis that a small subset of cells with characteristics of staminality is essential for the cancer onset has been widely studied in many tumors, included head-neck cancer, the seventh most common cancer in humans (1). These cells represent a small oncogenic subpopulation, with a characteristic phenotype that confers them a greater resistance to chemotherapy and radiotherapy (2). In this study the expression profile of some genes that differentiates cancer stem cells (CSC) from tumor cell of origin (TC) has been evaluated using Real Time PCR. Three cell lines, PE46, PE15 and HEP2, obtained from head and neck squamous cell carcinoma, where placed in culture, in absence of serum and in the presence of specific growth factors, giving rise to a spheroid cell subpopulation, with characteristics belonging to CSC. CSC were isolated using a selective filtration procedure based on beads labeled with the anti-CD44, that recognize a specific antigen of CSC in head and neck cancer (1). Few genes potentially involved in the onset and progression of oral cancer, were eval- uated in Real Time PCR, in order to compare their expression in CSC respect TC. All the three cell lines showed a common expression profile among the stem cell markers, resulting in an overexpression of the CD44 and ALDH1A in the spheroid population. Many of the investigated tumor markers were highly over-expressed in CSC, like TNFα, a pro-inflammatory factor that inhibits precancerous cell death, TP63, which is associated with an increase in the malignant transformation and a poor prognosis, and S100A4, a pro-inflammatory mediator involved in epithelial-mesenchymal transition of cancer cells. These results suggest the potential role of CSC in the tumor invasiveness. The characterization of CSC may lead to an improvement in the diagnosis and cancer therapy, allowing implementing treatments able to destroy cells which are probably involved in the process of metastasis.
description: Italian Journal of Anatomy and Embryology, Vol. 120, No. 1 (Supplement) 2015
Lyman Break Galaxies at z~5: Rest-Frame UV Spectra. III
Creators: name: Kajino, Hiroki
name: Ohta, Kouji
name: Iwata, Ikuru
name: Yabe, Kiyoto
name: Yuma, Suraphong
name: Akiyama, Masayuki
name: Tamura, Naoyuki
name: Aoki, Kentaro
name: Sawicki, Marcin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results of optical spectroscopic observations of candidates of Lyman Break Galaxies (LBGs) at $z \sim 5$ in the region including the GOODS-N and the J0053+1234 region by using GMOS-N and GMOS-S, respectively. Among 25 candidates, five objects are identified to be at $z \sim 5$ (two of them were already identified by an earlier study) and one object very close to the color-selection window turned out to be a foreground galaxy. With this spectroscopically identified sample and those from previous studies, we derived the lower limits on the number density of bright ($M_{UV}
description: 28 pages, 5 figures, accepted for publication in ApJ
title: Ð¡Ð¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½Ð¾-Ð¿ÑÐ¸Ñ Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼ Ð½Ð° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÑÑÐ»Ð¾Ð²Ð°, ÐÐµÑÐ¾Ð½Ð¸ÐºÐ°
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: Ð¼ÐµÑÐ¾Ð´Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼
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description: Ð Ð°Ð±Ð¾ÑÐ° ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸Ð·ÑÐµÑ ÑÑÑÐ½Ð¾ÑÑÑ ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½Ð¾-Ð¿ÑÐ¸ÑÐ¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ ÐºÐ°Ðº Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð¹ Ð¼Ð¾ÑÐ¸Ð²Ð¸ÑÑÑÑÐ¸Ð¹ ÑÐ°ÐºÑÐ¾Ñ, Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑÐ¸Ð¹ Ð¾ÐºÐ°Ð·ÑÐ²Ð°ÑÑ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾Ðµ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ Ð½Ð° ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ¾Ð² Ñ ÑÐµÐ»ÑÑ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÑÑÐ´Ð¾Ð²Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸, Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ Ð²ÑÑÐµÐ¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð² Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÑ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ ÑÐµÐ°Ð»ÑÐ½Ð¾Ð¹ ÑÑÑÐ´Ð¾Ð²Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. ÐÑÐ» ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¾Ð·ÑÐ¹ÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ ÐÐÐ Â«Ð¡Ð±ÐµÑÐ±Ð°Ð½Ðº Ð Ð¾ÑÑÐ¸Ð¸Â», Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½Ð¾-Ð¿ÑÐ¸ÑÐ¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð² Ð²Ð¾Ð¿ÑÐ¾ÑÐµ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼.
Diacylglycerol kinase (DGK) involvement in K562 erythroleukemia cell proliferation
Creators: name: Poli, Alessandro
name: Billi, Anna Maria
name: Piccari, Giuliani
name: Cocco, Lucio
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2015
Subjects: DAG; PLC; DGK; Cell proliferation; Nuclear lipid signalling

description: Nuclear phosphoinositide metabolism has been widely described as involved in many regulatory mechanisms including cell cycle and cell proliferation (1). Our recent studies demonstrated that an increase of nuclear Diacylglycerol (DAG) regulated the G2/M progression of erythroleukemia cells, K562 (2). As nuclear DAG can be synthesized by Phospholipases C (PLC) located in the nucleus, it can also be converted to Phosphatidic acid (PA) by a class of proteins called Diacylglycerol Kinases (DGK), which phosphorylate it utilizing ATP as a source of phosphate. PA levels in the nuclear compartments peak after G2/M progression, controlling cell cycle progression (1). We found that a particular DGK isoform, DGKa, is highly localized in the nuclear compartment of K562 cells. Then, we decided to investigate if this isozyme could be involved in cell proliferation of K562 cells, stimulating the exit from G2/M checkpoint through the production of PA in the nuclear compartment. Our data show that inhibition of DGK activity by two specific inhibitors, DI (R59022) and DII (R59949), blocks K562 cell proliferation. This effect is probably due to nuclear DGKa, indeed its modulation can affect cell proliferation too. Moreover, many cell cycle related proteins seem to be targeted by DGK activity. These evidences suggest a role for DGKa in the control of cell cycle progression acting on nuclear DAG levels and increase our knowledge about the importance of PI metabolism in the nuclei of eucaryotic cells.
description: Italian Journal of Anatomy and Embryology, Vol. 120, No. 1 (Supplement) 2015
Neurodinamia - Maniobras de deslizamiento - Cuadrante inferior
Creators: name: Martínez-Sánchez, Sofía M.
Publisher: name: Zenodo
Year: 2025

description: Este material didáctico presenta maniobras de movilización neural con deslizamiento en el cuadrante inferior. Se explican loas fundamentos neurodinámicos, la correcta ejecución de cada maniobra y los beneficios en la mejora de la movilidad neural en miembros inferiores.
Asymmetric simple exclusion process with periodic boundary driving
Creators: name: Popkov, Vladislav
name: Salerno, Mario
name: Schutz, Gunter M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the asymmetric simple exclusion process (ASEP) on a semi-infinite chain which is coupled at the end to a reservoir with a particle density that changes periodically in time. It is shown that the density profile assumes a time-periodic sawtooth-like shape. This shape does not depend on initial conditions and is found analytically in the hydrodynamic limit. In a finite system, the stationary state is shown to be governed by effective boundary densities and the extremal flux principle. Effective boundary densities are determined numerically via Monte Carlo simulations and compared with those given by mean field approach and numerical integration of the hydrodynamic limit equation which is the Burgers equation. Our results extend straightforwardly beyond the ASEP to a wide class of driven diffusive systems with one conserved particle species.
description: 11 pages, 11 figs
Setaria viridis
Creators: name: Cardona, Àngel Manuel Hernández
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Setaria
Setaria viridis

description: Setaria viridis (L.) P. Beauv.
(xereix verd). Nadiua de les regions temperades i tropicals del Vell Món, s’ha estès a quasi tot l’orbe terrestre. De gran amplitud ecològica, es fa en camps, regalls, vores de camins, ermassos i lleres de rambles i rieres. És present tant a Sant Llorenç del Munt com a l’Obac.
description: Published as part of Cardona, Àngel Manuel Hernández, 2022, Catàleg actualitzat i claus d'identificació de les gramínies de Sant Llorenç del Munt i l'Obac (Barcelona), pp. 64-86 in Nemus 12 on page 74, DOI: 10.5281/zenodo.12170499
Tutto pronto per la foto del secolo
Creators: Corrado Ruscica
Publisher: name: Media Inaf
Year: 2019

Un grande evento attende astronomi, scienziati e curiosi: se tutto andrà bene, dovrebbe diventare presto disponibile la prima “immagine” ad alta risoluzione mai realizzata di un buco nero, o più precisamente della sua “ombra”. Per saperne di più, Media Inaf ha raggiunto Ciriaco Goddi, responsabile scientifico del progetto BlackHoleCam, che ci svela il ”dietro le quinte” dell’esperimento più atteso dell’anno
title: Criteria for Deflagration-to-Detonation Transition in Hydrogen-based Gaseous Mixtures
Creators: name: Kiverin, A.
name: Yakovenko, I.
name: International Seminar On Fire And Explosion Hazards (9; 2019; Saint Petersburg, Russia)
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: 2019

description: The paper proposes a technique for assessment of critical conditions determining the possibility of
deflagration-to-detonation transition (DDT) inside confined vessels filled with hydrogen-based gaseous
mixtures. It is known that the chocked flame regime is the necessary step to the deflagration-to-detonation
transition in channels. Here the analysis of the chocked flame structure allows defining its stability
conditions on the basis of a simple parametric study. The evolution of chocked flame in the stable mode
leads to additional flame acceleration finalised with DDT taking place at the flame front. The unstable
mode determines the formation of the quasi-steady flame propagating with near-sonic speed. It is found
that the proposed parametric study allows assessment of the critical conditions with a fine enough
accuracy for the case of smooth channels. However, in flame acceleration inside obstructed channels, the
stable mode of chocked flame propagation is limited in time, due to the multidimensionality of the flow
patterns formed inside the channel. As a result, one does not observe DDT at the flame front under such
conditions. The main scenario of DDT developed inside an obstructed channel is self-ignition in the
region of deceleration of supersonic flow by the obstacles. Due to this, to obtain good enough predictions
of DDT possibilities inside obstructed channels one should jointly apply the parametric analysis of the
chocked flame stability with the geometric criterion (such as the Thomas criterion). This paper
demonstrates that such an approach provides good enough predictions of DDT limits for a given mixture,
its state and geometry of the vessel.
Preliminary experiments for the study of the absorption spectra of plasmas
Creators: name: Budd, Sinclair Edwards
Publisher: name: University of British Columbia
Year: 2012

description: A Flash Unit to supply a pulsed source of continuum radiation has been constructed to provide the light required for the study of absorption spectra of plasmas. The unit which contains the plasma has been designed to produce a gas of high purity. Several transitions in the excited neon were seen in absorption. At least two have not been reported previously. A preliminary determination of transition temperatures has been made.
BMP-2 induced expression of PLC beta1 that is a positive regulator of osteoblast differentiation
Creators: name: Ramazzotti, Giulia
name: Fiume, Roberta
name: Mazzetti, Cristina
name: Matteucci, Alessandro
name: Cocco, Lucio
name: Faenza, Irene
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2015
Subjects: PLCβ1; nucleus; osteogenic differentiation

description: C2C12 is an immortalized mouse myoblast cell line. The cells readily proliferate in high-serum conditions, and differentiate and fuse in low-serum conditions. While this cell line is a very useful tool to study aspects of myogenesis, metabolism and muscle biology, however, treatment of C2C12 cells with bone morphogenic protein (BMPs) induces cells to differentiate into osteoblasts. Osteoblast differentiation is controlled by diversified signaling proteins and transcription factors, essentially BMP-2, Osterix (Osx/Sp7) and Runx2, finally associating with the expression of late osteoblast marker genes, like ALPL and Bglap. These peculiarities make C2C12 progenitor cells a skillful prototype to investigate the molecular mechanism that control cell destiny specification and terminal differentiation. In the current investigation, we took improvement of the differentiation peculiarities of the mouse C2C12 cell line to analyze whether changes in PLCbeta1 expression and its nuclear localization might regulate or affect their terminal osteogenic differentiation. We demonstrated that overexpression of PLCβ1 enhances the osteogenic differentiation of C2C12 elicited by BMP-2 as demonstrated by the presence of osteoblast marker genes expression. In the present study we also showed that miR-214 suppressed osteogenic differentiation through the regulation of nuclear PLCβ1 by targeting Osterix.
description: Italian Journal of Anatomy and Embryology, Vol. 120, No. 1 (Supplement) 2015
Reti neurali predicono la massa dei pianeti
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2019

Per scoprire come si formano i pianeti gli astrofisici eseguono calcoli complessi e dispendiosi in termini di tempo. I membri del Nccr PlanetS presso l'Università di Berna hanno sviluppato un approccio totalmente nuovo per accelerare drasticamente questo processo, utilizzando il deep learning basato su reti neurali artificiali, un metodo ben noto nel riconoscimento di immagini. Tutti i dettagli su A&A.
Bianchi type II,III and V diagonal Einstein metrics re-visited
Creators: name: Valent, Galliano
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We present, for both minkowskian and euclidean signatures, short derivations of the diagonal Einstein metrics for Bianchi type II, III and V. For the first two cases we show the integrability of the geodesic flow while for the third case a somewhat unusual bifurcation phenomenon takes place: for minkowskian signature elliptic functions are essential in the metric while for euclidean signature only elementary functions appear.
Catione idrogenonio, ora t’ho visto nascere
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2019

I dettagli della formazione dello ione H3+, una molecola fondamentale per la chimica dell'universo e della vita, sono stati ottenuti a partire da studi di eccitazione laser di una serie di composti organici. La ricerca, condotta da un team della Michigan State University, è pubblicata su Nature Communications
title: ÐÐ½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾-Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÐ¸ÑÑÐµÐ¼Ð° ÑÐ±Ð¾ÑÐ°, Ñ ÑÐ°Ð½ÐµÐ½Ð¸Ñ Ð¸ Ð¾ÑÐ¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ñ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ Ð½ÐµÑÐ°Ð·ÑÑÑÐ°ÑÑÐµÐ³Ð¾ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ»Ð¾Ð¶Ð½Ð¾Ð¿ÑÐ¾ÑÐ¸Ð»ÑÐ½ÑÑ Ð·Ð°Ð³Ð¾ÑÐ¾Ð²Ð¾Ðº Ð¸ Ð¸Ð·Ð´ÐµÐ»Ð¸Ð¹
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ¾Ð»ÐºÐ¸Ð½, ÐÑÑÐµÐ¼
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¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð½Ð½Ð¾-Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
ÑÑÐµÐ´ÑÑÐ²Ð¾ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ð¹
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ÑÐµÐ»ÐµÐºÑÐ¸Ð²Ð½Ð¾Ðµ Ð»Ð°Ð·ÐµÑÐ½Ð¾Ðµ ÑÐ¿ÐµÐºÐ°Ð½Ð¸Ðµ

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐ°Ð±Ð¾ÑÑ Ð¿Ð¾ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾-Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ±Ð¾ÑÐ°, ÑÑÐ°Ð½ÐµÐ½Ð¸Ñ Ð¸ Ð¾ÑÐ¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ñ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ Ð½ÐµÑÐ°Ð·ÑÑÑÐ°ÑÑÐµÐ³Ð¾ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ»Ð¾Ð¶Ð½Ð¾Ð¿ÑÐ¾ÑÐ¸Ð»ÑÐ½ÑÑ Ð·Ð°Ð³Ð¾ÑÐ¾Ð²Ð¾Ðº Ð¸ Ð¸Ð·Ð´ÐµÐ»Ð¸Ð¹ Ð² ÑÐ¾Ð´Ðµ Ð¾Ð¿ÑÑÐ½Ð¾Ð¹ Ð¾ÑÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ ÑÐµÐ»ÐµÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð»Ð°Ð·ÐµÑÐ½Ð¾Ð³Ð¾ ÑÐ¿ÐµÐºÐ°Ð½Ð¸Ñ. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÐµÑÐµÑÐ¸ÑÐ»ÐµÐ½Ñ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°, Ð¿ÑÐµÐ´ÑÑÐ²Ð»ÑÐµÐ¼ÑÐµ Ðº Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾-Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ðµ. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ð¿Ð¸ÑÑÐ²Ð°ÑÑÑÑ Ð°ÑÑÐ¸ÑÐµÐºÑÑÑÐ° Ð¸ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ ÑÐ°Ð·ÑÐ°Ð±Ð°ÑÑÐ²Ð°ÐµÐ¼Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð´ÑÐºÑÐ°.
Size quantization effects in thin film Casimir interaction
Creators: name: Benassi, A.
name: Calandra, C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the role of size quantization in the vacuum force between metallic films of nanometric thickness. The force is calculated by the Lifshitz formula with the film dielectric tensor derived from the one-electron energies and wavefunctions under the assumption of a constant potential inside the film and a uniform distribution of the positive ion charge. The results show that quantization effects tend to reduce the force with respect to the continuum plasma model. The reduction is more significant at low electron densities and for film size of the order of few nanometers and persists for separation distances up to 10 nm. Comparison with previous work indicates that the softening of the boundary potential is important in determining the amount of the reduction. The calculations are extended to treat Drude intraband absorption. It is shown that the inclusion of relaxation time enhances the size quantization effects in the force calculations.
title: ÐÐ¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ Ð¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¿Ð¾Ð´Ð´ÐµÑÐ¶ÐºÐ° ÑÐ¾Ð²Ð°ÑÐ½Ð¾-Ð·Ð°ÐºÑÐ¿Ð¾ÑÐ½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ ÐÐÐ Â«Ð¡Ð¿Ð¾ÑÑ Ð¸ ÐÑÐ´ÑÑ Â»
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Ð°ÑÑÑÐ½Ð¾Ð²Ð°, ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ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: Ð·Ð°Ð´Ð°ÑÐ° Ð¼Ð½Ð¾Ð³Ð¾ÐºÑÐ¸ÑÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸
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Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÐÐÐ Â«Ð¡Ð¿Ð¾ÑÑ Ð¸ ÐÑÐ´ÑÑÂ».
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°Ð½Ð°Ð»Ð¸Ð· Ð¸ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ ÑÐ¾Ð²Ð°ÑÐ½Ð¾-Ð·Ð°ÐºÑÐ¿Ð¾ÑÐ½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸, Ð° Ð¸Ð¼ÐµÐ½Ð½Ð¾ Ð²ÑÐ±Ð¾Ñ ÑÐ¿Ð¸ÑÐºÐ° Ð¿Ð¾ÑÑÐ°Ð²ÑÐ¸ÐºÐ¾Ð², Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ Ð±Ð¸Ð·Ð½ÐµÑ-Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð².
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Lente gravitazionale a forma di “croce latina”
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2019

Lo studio, pubblicato su “The Astrophysical Journal Letters”, è guidato dai ricercatori dell’Inaf di Padova. Ulteriori osservazioni sono state effettuate con il Gran Telescopio Canarias di 10 metri situato sull'isola di La Palma alle Canarie
title: ÐÐ¸Ð·Ð½ÐµÑ-Ð¿Ð»Ð°Ð½ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ ÐºÐ¾Ð½Ð´Ð¸ÑÐµÑÑÐºÐ¾Ð¹ ÑÐ°Ð±ÑÐ¸ÐºÐ¸ (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐÐ Â«ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ°ÑÂ»)
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ÑÐ°Ð¿Ð¾Ð²Ð°, ÐÐ»ÑÐ³Ð°
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¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
project expert
ÐºÐ¾Ð½Ð´Ð¸ÑÐµÑÑÐºÐ°Ñ ÑÐ°Ð±ÑÐ¸ÐºÐ°

description: Ð¦ÐµÐ»Ñ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ â ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ° Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¹ ÑÑÐµÐ´Ðµ Â«Project expertÂ» Ð¿Ð¾ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð¸ Ð²ÑÑÐ¾Ð´Ñ Ð½Ð° ÑÑÐ½Ð¾Ðº ÐºÐ¾Ð½Ð´Ð¸ÑÐµÑÑÐºÐ¾Ð¹ ÑÐ°Ð±ÑÐ¸ÐºÐ¸.
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Ð ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¼ ÑÐ°Ð·Ð´ÐµÐ»Ðµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð²Ð·Ð³Ð»ÑÐ´Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÐµÐ¹ Ð½Ð° ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ðµ Ð±Ð¸Ð·Ð½ÐµÑ-Ð¿Ð»Ð°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ, ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð±Ð¸Ð·Ð½ÐµÑ Ð¿Ð»Ð°Ð½Ð° Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¹ ÑÑÐµÐ´Ðµ Â«Project expertÂ».
ÐÐ¾ Ð²ÑÐ¾ÑÐ¾Ð¼ ÑÐ°Ð·Ð´ÐµÐ»Ðµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð° ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ, ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð°Ð²ÑÐ¾ÑÑÐºÐ¸Ñ Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹, Ð°ÑÑÐ¾ÑÑÐ¸Ð¼ÐµÐ½Ñ Ð¿ÑÐ¾Ð´ÑÐºÑÐ¸Ð¸, Ð¿Ð¾ÑÑÐµÐ±Ð½Ð¾ÑÑÑ Ð² Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¸, Ð·Ð´Ð°Ð½Ð¸ÑÑ, ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐµ, ÑÑÑÑÐµ.
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First Order Extended Gravity and the Dark Side of the Universe: the General Theory
Creators: name: Capozziello, S.
name: De Laurentis, M.
name: Francaviglia, M.
name: Mercadante, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: General Relativity is not the definitive theory of Gravitation due to several shortcomings which are coming out both from theoretical and experimental viewpoints. At large scales (astrophysical and cosmological scales) the attempts to match it with the today observational data lead to invoke Dark Energy and Dark Matter as the bulk components of the cosmic fluid. Since no final evidence, at fundamental level, exists for such ingredients, it is clear that General Relativity presents shortcomings at infrared scales. On the other hand, the attempts to formulate theories more general than the Einstein one give rise to mathematical difficulties that need workarounds which, in turn, generate problems from the interpretative viewpoint. We present here a completely new approach to the mathematical objects in terms of which a theory of Gravitation may be written in a first-order `a la Palatini formalism, and introduce the concept of Dark Metric which could completely bypass the introduction of disturbing concepts as Dark Energy and Dark Matter.
description: Proceedings of the Conference "The Invisible Universe" Paris, June 29-July 3, 2009 10 pages
Deformation Quantization of a Certain Type of Open Systems
Creators: name: Becher, Florian
name: Neumaier, Nikolai
name: Waldmann, Stefan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 53D55; 81Sxx

description: We give an approach to open quantum systems based on formal deformation quantization. It is shown that classical open systems of a certain type can be systematically quantized into quantum open systems preserving the complete positivity of the open time evolution. The usual example of linearly coupled harmonic oscillators is discussed.
description: Major update. Improved main statements. 21 pages
C’è un pipistrello cosmico in volo su Orione
Creators: Redazione Eso
Publisher: name: Media Inaf
Year: 2019

Descritta per la prima volta dall'astronomo tedesco-britannico William Herschel, la nebulosa Ngc 1788 è stata osservata ora da uno degli strumenti più versatili dell’Eso – Fors2 – e l'immagine ottenuta offre il ritratto più dettagliato che ne sia mai stato fatto
Precision Kaon and Hadron Physics with KLOE
Creators: name: The KLOE Collaboration
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We describe the KLOE detector at DAFNE, and its physics program. The impact of our results on flavor and hadron physics to date, as well as an outlook for further improvement in the near future, are discussed.
description: Review paper on KLOE and its physics results
Guarda come luccica la protostella dell’Ofiuco
Creators: Mario Guarcello
Publisher: name: Media Inaf
Year: 2019

Un articolo pubblicato su Astronomy & Astrophysics, con primo autore Ignazio Pillitteri dell'Inaf di Palermo, presenta una dettagliata analisi dell’emissione di raggi X della protostella di classe I Elias 29, nella regione di rho Ophiuchi
Scoperti 83 quasar primordiali
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2019

Alimentati da buchi neri supermassicci, gli 83 nuovi arrivati si aggiungono ai 17 quasar scoperti precedentemente sempre dal Subaru Telescope. Ciò conduce a stimare che ci sia un buco nero supermassiccio in ogni cubo di un miliardo di anni luce di lato: tanti, ma non abbastanza per spiegare la reionizzazione. È stato inoltre scoperto il primo quasar a bassa luminosità a z > 7. Tutti i dettagli su ApJ Letters