Search results for "ghost"
showing 8 items of 38 documents
Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at E beam =4 TeV
2018
Results of dedicated Monte Carlo simulations of beam-induced background (BIB) in the ATLAS experiment at the Large Hadron Collider (LHC) are presented and compared with data recorded in 2012. During normal physics operation this background arises mainly from scattering of the 4 TeV protons on residual gas in the beam pipe. Methods of reconstructing the BIB signals in the ATLAS detector, developed and implemented in the simulation chain based on the FLUKA Monte Carlo simulation package, are described. The interaction rates are determined from the residual gas pressure distribution in the LHC ring in order to set an absolute scale on the predicted rates of BIB so that they can be compared qua…
Relazioni digitali. Coppie tra network, app e ghosting
2022
Nel mondo delle relazioni intime molto è mutato ma tanto altro è rimasto inalterato; una coppia può formarsi grazie a un incontro che potrebbe non essere fisico o non accidentale, a seguito di un’attrazione e non sempre per amore. E soprattutto può non essere fedele o “…per tutta la vita”. Lo sviluppo delle scienze psicologiche, il percorso internazionale delle pari opportunità che ha riconosciuto alle donne diritti in precedenza non contemplati, la riforma del Diritto di famiglia (1975) , che in Italia ha delineato status e ruoli familiari in modi differenti rispetto al passato e, ancora, la nascita dell’homo digitans (Spaccarotella, 2020), hanno contribuito in maniera significativa alla m…
Overview of ghost correction for HDR video stream generation
2015
International audience; Most digital cameras use low dynamic range image sensors, these LDR sensors can capture only a limited luminance dynamic range of the scene[1], to about two orders of magnitude (about 256 to 1024 levels). However, the dynamic range of real-world scenes varies over several orders of magnitude (10.000 levels). To overcome this limitation, several methods exist for creating high dynamic range (HDR) image (expensive method uses dedicated HDR image sensor and low-cost solutions using a conventional LDR image sensor). Large number of low-cost solutions applies a temporal exposure bracketing. The HDR image may be constructed with a HDR standard method (an additional step ca…
Ghostbusters! On the Narrative Creation of (Absent) Leader Characters
2022
We seek to “bust out” ghost leaders, narrated leader(ship) characters manifesting leadership influence, to discuss the inherent challenges related to leaderless management. By taking the non-corporeal aspect of leadership into account, we challenge the notion of leaderless management—which we argue has turned out to be more of an inspiring and empowering idea rather than a standing practice. We illustrate, with a Finnish high-tech organization, how organizational members narrate leader characters into existence in the non-corporeal realm during an organizational change to fill the void of a corporeal leader. While organizations may declare themselves to be leaderless, they, in fact, are not…
Sequestrati dalla vendetta: “rimanere chiusi fuori dall’oggetto”
2013
RiassuntoA partire dal loro lavoro di psicoterapeute e attraverso alcuni frammenti clinici che si riferiscono ad un gruppo di adolescenti svoltosi in un quartiere a rischio di Palermo, le Autrici analizzano la dimensione mafiosa non restringendola al solo comportamento criminale; piuttosto declinandola lungo alcuni significanti: non identità e gruppo mafioso che colonizza e sottomette lo psichismo del singolo; fantasmi familiari potenti e spietati che impediscono il costituirsi di sé originali e autonomi; personalità impastate di indifferenza emotiva e vendicatività. Significanti che rendono conto delle vaste aree di desertificazione e pietrificazione – resistenza al cambiamento – avvertita…
“At the Western Palace”: The Dehumanization of Whiteness, Americanness, and Chinese-Americanness in Maxine Hong Kingston’s The Woman Warrior
2021
The dehumanization of whiteness in Maxine Hong Kingston’s The Woman Warrior (1976) inheres in the overarching ghosthood metaphor. While first generation Chinese American immigrants in The Woman Warrior attribute the power of transforming people into ghosts to the United States of America as a country, the questioning of a person’s humanity by calling them a “ghost” is not reserved for white people alone. Chinese American immigrants also run the risk of losing their humanity and becoming ghosts if they renounce their relatives and their heritage. The husband of the first-person narrator’s Chinese aunt, Moon Orchid, is an example of a Chinese American man, who turns into a ghost on account of…
Regional odontodysplasia of the deciduous and permanent teeth associated with eruption disorders: A case report
2008
WOS: 000259667500007 PubMed: 18758400 Regional odontodysplasia (RO) is an unusual, non-hereditary anomaly of the dental hard tissues with characteristic clinical, radiographic and histological findings. Clinically, RO affects the primary and permanent dentition in the maxilla and mandible or both jaws. Radiographically, there is a lack of contrast between the enamel dentin, both of which are less radiopaque than unaffected counterparts. Additionally, enamel and dentin layers are thin, giving the teeth a "ghost-like" appearance. Histologically, areas of hypocalcified enamel are visible and enamel prisms appear irregular in direction. Coronal dentin is fibrous, consisting of clefts and a redu…
Beam-induced and cosmic-ray backgrounds observed in the ATLAS detector during the LHC 2012 proton-proton running period
2016
This paper discusses various observations on beam-induced and cosmic-ray backgrounds in the ATLAS detector during the LHC 2012 proton-proton run. Building on published results based on 2011 data, the correlations between background and residual pressure of the beam vacuum are revisited. Ghost charge evolution over 2012 and its role for backgrounds are evaluated. New methods to monitor ghost charge with beam-gas rates are presented and observations of LHC abort gap population by ghost charge are discussed in detail. Fake jets from colliding bunches and from ghost charge are analysed with improved methods, showing that ghost charge in individual radio-frequency buckets of the LHC can be resol…