655 research outputs found

    Quasar - variabilitĂ  e casualitĂ 

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    Analisi della variabilitĂ  temporale dello spettro di AGN e in particolare di Quasar, con definizione di "quasi-periodicitĂ " e "casualitĂ " su lungo e breve periodo, per un suo uso astrofisico mirato alla creazione di un cifrario crittografico

    Key Concepts For A New Cultural Institution

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    Kinematics modeling of molecular gas in NGC 3100

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    This thesis is part of a project aimed at providing a comprehensive study of different galaxy components in the core of radio-loud ETGs, and look for kinematical signatures of feeding/feedback loops that can be causally related to the presence of radio jets. For this purpose, a volume limited (z < 0.03) sample of 11 radio galaxies was selected. This sample is the target of VLT/VIMOS (warm gas and stellar components) and ALMA (molecular gas). This thesis inquires into the kinematics of molecular gas in the centre of one of the sources in the sample: NGC 3100, a FRI radio galaxy hosted by a S0 galaxy at redshift z = 0.0088. NGC 3100 was observed with APEX at 230 GHz and showed a CO(2-1) line profile (double-horned) consistent with the presence of a rotating disk. The inner region of NGC 3100 was then imaged with ALMA. As part of this thesis, ALMA data was reduced and a data cube was obtained with a beam of 1.01''x0.73'', where a CO(2-1) 230-GHz line was clearly detected. The ALMA radio continuum data, revealed the inner part of the radio jets, entirely consistent with those imaged at similar resolution with the VLA. A full analysis of the CO(2-1) line emission was made through the integrated intensity map and the integrated velocity map. The mass of the molecular gas resulted in M = 1.85 +/- 0.4 x 10^8 M_sun, consistent with what found with APEX. The CO map was compared with the distribution of dust in the inner region of the host galaxy. A nice overlap was found for the structures detected in both images. The molecular gas disk shows a complex kinematics, with some warps in the velocity field. Two programs were used to model the disk: TiRiFiC and 3D-Barolo. The comparison of their results was helpful to better understand the kinematics of the gas. The modelling confirmed initial guesses about the inclination and the position angle of the gas disk, and allowed us to derive purely rotational velocity fields as well as fields including non-circular motions

    Commoning Molecules: Decolonising Biological Patents by Gender Hacking Protocols

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    By making reference to the political context of “molecular invasion” (Critical Art Ensemble 2002), this article will compare two practices of production and administration of hormones to highlight the consequences at stake when business property extends over bodies and cells of humans, animals and plants. On the one hand, I will examine DIWO (Do It With Others) biohacking workshops that synthesise pharmaceutical hormones and share the know-how by using open-source protocols and participatory workshop methods. I will refer to these specific practices as exemplary of a growing approach to the topic which represents a new field combining biohacking, activism, art, and open science, by “commoning” (Linebaugh 2008) medical tools and knowledge. These workshops are hacking the business property in humans by commoning practices of co-creating and co-producing hormone molecules, refusing to be locked into the profit-driven mechanics of bio-capital and aiming at taking back scientific knowledge. Moreover, these interventions question what a normal or natural model of sex is – given that organic pollutants are already affecting every aspect of the sphere of reproduction of humans and animals, its related organs and hormonal balance (SCOPE-IUPAC 2001; Lind and Lind 2011; Hood 2005; Kier 2010; Langstone 2010). On the other hand, I draw on an open-ended conversation I conducted with a number of Italian trans activists, focusing on the power that pharmaceutical monopolies have, through the intellectual property rights on pharmaceuticals (including hormones), to introduce or withdraw from the market drugs on which many people rely. This article aims to show how selected DIWO biohacking workshops, which are taking place between Europe and North America, can be understood as decolonial interventions as they call us to critically reappraise the relationship between knowledge, power, and institutions by commoning science knowledge and resisting the push to commodify knowledge and place it behind paywalls, by commoning the molecules’ production. Finally, they promote a more inclusive approach to healthcare that critically reappraises technology and raises collective awareness of our bodies as battlegrounds to be engineered and controlled

    An Analysis of Cognitive Factors in School-Aged Children with Emotional Disturbance and ADHD Using the WISC-IV

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    Children with Emotional Disturbance and ADHD demonstrate social, emotional, and behavioral symptoms that present many challenges for School Psychologists because of differences between each student’s individual needs. A high level of comorbidity exists for these children with internalizing and externalizing symptoms. Little is known about neurocognitive factors as they relate to ED versus ADHD. The current study examined the cognitive profiles of a total of 58 children with ED versus ADHD, using the Wechsler Intelligence Scale for Children, Fourth Edition (WISC-IV). Index scores that were examined included Verbal Comprehension, Perceptual Reasoning, Working Memory, and Processing Speed. The groups were compared in order to determine overall group mean differences. Further analysis identified proportions of differences between the groups at the 10, 15, 20, and 25 point levels for the following Index level comparisons: VCIWMI, PRI-WMI, PRI-PSI, VCI-PSI, VCI-PRI, WMI-PSI. Results of the study found overall group mean differences between the groups for VCI. Further analysis of Index level comparisons indicated that children with ED demonstrated significance with VCI\u3eWMI and VCI\u3ePSI and PRI\u3eWMI. Children with ADHD demonstrated significance with WMI\u3eVCI, which is the opposite of prior research findings. Limitations of the current study and implications for future research are also discussed

    The Medicalisation of Politics or the Politicisation of Medicine: The Case of Italian Struggles to Design Public Healthcare Institutions

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    The article follows the contours of a conversation with Fulvio Aurora, Paolo Fierro and Edoardo Turri, three members of the Italian health activist organization Medicina Democratica, which will also function as the backbone of our account of the initial radical impetus and the later demise of the Italian public health system, the Servizio Sanitario Nazionale or SSN. Through the focus on the Italian context, we wish to address a set of broader and interrelated questions around the design of public healthcare services and the scale of political agency which can be significant today across a number of struggles. When reasoning around issues of health, and seeking for definitions that complexify this concept beyond a mere ensemble of optimal bodily functionality, the Italian context offers an effective standpoint. Not only because it was the first place where the pandemic spread beyond its original outbreak in the Chinese province of Wuhan, but also because in the Seventies this country has been a very important laboratory of political practices that contributed significantly to shape international debates and political imaginaries around healthcare practices. For example, one might recall the importance of Franco Basaglia's work for the so-called “anti-psychiatry” revolution; the invention of the consultori (a network of self-managed reproductive healthcare centres), operated by the feminist movement, which later become part of the national healthcare system; and finally, the method of the workers’ self-inquiry introduced by activists such as Ivar Oddone and Giulio Maccacaro to launch important investigations into the toxicity of industrial plants, which were influential beyond the Italian borders

    VEGA SSMS HEX Module – Aggregation and Integration from EU to French Guiana

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    The paper describes the SSMS HEX Module Integration for the VEGA SSMS POC Flight. The integration, together with the aggregation of all the nano and picosatellites, took place in different European facilities between Europe and French Guiana. Among them, the SAB Aerospace facility in Brno played a fundamental role in the process. Indeed, all populated deployers have been integrated on the SSMS HEX Module in Brno. During the HEX Module integration, preliminary electrical checks for the satellites release have been performed. Finally, the finalization of the HEX Module has been performed in French Guiana at the Centre Spatial Guyanaisin Kourou (CSG) before the final integration between the SSMS Upper Part and SSMS Lower Part
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