Abstraction and Idealization: an Irrelevant and Misguiding Methodological Divide

Despite its wide acceptance and its seemingly uncontroversial character, the methodological divide between abstraction and idealization in political theory, if carefully examined, reveals itself to be worthless and counterproductive. In this paper, my attempt will be to show why we should overcome this well-established distinction, originally introduced by Onora O\u2019Neill. I claim that there are two fundamental reasons for doing so. Firstly, this methodological divide does not give any substantive advice in order to build a normative political argument \u2013 I will call this first rebuttal the irrelevancy objection. Secondly, and more problematically, the divide contributes to obscure some crucial methodological issues that should be directly faced and clarified \u2013 I will call this second challenge the misguidance objection. Both objections are grounded on the idea that O'Neill endorses a naive and insufficient conception of description. Indeed, the distinction between abstraction and idealization refers to some features of the description adopted: it depends exclusively on its truthfulness or falsehood. Specifically, abstractions are subtractions of true predicates, idealizations are additions of false predicates. According to this distinction, for O'Neill idealization should be avoided, while abstractions are necessary. However, I maintain that focusing merely on the truth or falsehood of premises obscures the relevant methodological relationship, which is triadic and not binary. Indeed, the description a theory endorses is never selected just for its truth-value. The relevant methodological link is not that between theory and (the truth-value of) descriptive assumptions, but runs over a triangulation between theory, descriptive assumptions and criterion of appropriateness. As a consequence I claim that, even if there is a fundamental logical difference between abstraction and idealization, this sharp divide is methodologically unfruitful: focusing solely on such a binary relationship is at best useless, at worst harmful

Political possibility. A research into the methods of normative political theory

This is a research about the limits and the conduct of normative political thinking. When we take a normative perspective about political matters, we essentially engage in an attempt to figure out how our political practices ought to be, compared to what they are. By being so characterised, however, it looks sensible to wonder whether this sort of theoretical endeavour ought to be somehow disciplined and constrained. Are there any limits with respect to the political worlds that we can imagine as normative? Is there some kind of relation between the world as it is and the world as it should be? In the present study, I explore this fundamental problem. The four essays that together compose this thesis analyse the relationship between political reality and normative theory from different viewpoints. In doing so, they try to offer a better understanding of the limits of political possibility for normative political thinking. The first essay asks what is the appropriate procedure to tackle the problem of the limit of political possibility for normative political theory. The second essay investigates whether political theories ought to identify the desirable political worlds by relying on some features of the actual world, namely by following a bottom-up procedure. The third essay follows a similar lead and defines what sort of theoretical structure would result from the employment of a bottom-up procedure \u2013 that is to say, the third essay clarifies how political theories ought to manage the factual knowledge that the bottom-up procedure regards as normatively relevant. Finally, the fourth essay investigates whether the bottom-up theories defended in the second and third essays have to be subjected to some sort of feasibility requirements. In sum, I affirm that the limit of the political possibility for normative political theory ought to be traced where the political worlds which are practically possible, and which are compatible with the instantiation of the values that concrete agents deem important, can be found. This conclusion has important consequences with respect to the conduct of normative political thinking. I maintain that the theorist ought to be primarily an attentive observer and interpreter of concrete political practices. Moreover, the arguments that I outline suggest that we ought to look at our own world primarily in a spirit of reconciliation, rather than criticism. These two ways of looking at our practices are both fundamental, but I suggest that we should first and foremost look at our world and observe whether something makes sense in it and can be valued, rather than focusing on what could be subverted

A landscape approach in the isotopic modeling of natural precipitations: two cases in Mediterranean mountain areas

The present paper proposes a method to simplify the very complex isotopic fractionation processes occurring during the water cycle. The method is constrained by a relatively small number of variables, with the precision needed in hydrological applications. After a theoretical introduction on the adopted interpolation criteria, two cases in the Mediterranean are presented. In both cases the evaluation of the “geometric complexity” of the systems appears to be the best tool to produce reliable isotopic models. If the complexity is low, it is apparently easier to fit different models; on the contrary the higher the complexity is, more difficult it is to find a reliable model but, at the same time, more difficult it is to find effective alternative models

Functioning of family system in pediatric oncology during treatment phase

The study focuses on parents\u2019 psychological implications caused by the treatment of their children su\ufb00ering from tumor. It investigates some speci\ufb01c mothers\u2019 resource factors such as their strategies of coping and the perception of their own family functioning in terms of cohesion and adaptability. The study was performed with 34 mothers of children su\ufb00ering from acute lymphoblastic leukemia(ALL),duringthetreatmentphase.TheusedtoolsweretheCopingOrientationtoProblem Experienced\u2014New Italian Version, to investigate coping strategies, and the Family Adaptability and Cohesion Evaluation Scale-III, to analyze both real and ideal perception of family functioning. The data related to coping, show how the involved mothers tend to mainly use the strategies of positive aptitude, orientation toward problem and social support ( F = 99.88, d f= 4, P< .01). The family functioning, in terms of adaptabilit y, is described as chaotic relating to both the real (\u3c72 = 13.29,d f =3, P=.004)andideal(\u3c72=11.52,d f=2, P=.003)family,whereasintermsof cohesion, itisperceivedaschie\ufb02ydisengagedintherealfamily(\u3c72 =12.3,d f=3, P=.006)andasenmeshed in the ideal one (\u3c72 = 12.58, d f= 3, P= .006). Statistically positive correlations were only detected between adaptability and avoidance ( r = 0.49, P< .01); adaptability and orientation toward problem (r = 0.36, P< .05); and adaptability and transcendent orientation ( r = 120.04, P< .05). Despitethecriticalsituation,themothershaveshownoptimisticview,careforproblemmanagementandcapabilitytoaskforhelp.Thesecopingstrategiesallowthetherapeuticalliancebetween families and health care workers, so useful for the quality of childcarThe study focuses on parents\u2019 psychological implications caused by the treatment of their children su\ufb00ering from tumor. It investigates some speci\ufb01c mothers\u2019 resource factors such as their strategies of coping and the perception of their own family functioning in terms of cohesion and adaptability. The study was performed with 34 mothers of children su\ufb00ering from acute lymphoblastic leukemia(ALL),duringthetreatmentphase.TheusedtoolsweretheCopingOrientationtoProblem Experienced\u2014New Italian Version, to investigate coping strategies, and the Family Adaptability and Cohesion Evaluation Scale-III, to analyze both real and ideal perception of family functioning. The data related to coping, show how the involved mothers tend to mainly use the strategies of positive aptitude, orientation toward problem and social support ( F = 99.88, d f= 4, P< .01). The family functioning, in terms of adaptabilit y, is described as chaotic relating to both the real (\u3c72 = 13.29,d f =3, P=.004)andideal(\u3c72=11.52,d f=2, P=.003)family,whereasintermsof cohesion, itisperceivedaschie\ufb02ydisengagedintherealfamily(\u3c72 =12.3,d f=3, P=.006)andasenmeshed in the ideal one (\u3c72 = 12.58, d f= 3, P= .006). Statistically positive correlations were only detected between adaptability and avoidance ( r = 0.49, P< .01); adaptability and orientation toward problem (r = 0.36, P< .05); and adaptability and transcendent orientation ( r = 120.04, P< .05). Despitethecriticalsituation,themothershaveshownoptimisticview,careforproblemmanagementandcapabilitytoaskforhelp.Thesecopingstrategiesallowthetherapeuticalliancebetween families and health care workers, so useful for the quality of childcar

Molecular and isotopic composition of free hydrocarbon gases from Sicily, Italy

Chemical and isotopic data have been used as geochemical tracers for a genetic characterization of hydrocarbon gases from a total of eleven manifestations located in Eastern and Central-Southern Sicily (Italy). The molecular analysis shows that almost all the samples are enriched in methane (up to 93.2% Vol.), with the exception of four gas samples collected around Mt. Etna showing high mantle-derived CO2 content. Methane isotope signatures suggest that these are thermogenic gases or a mixture between thermogenic gases and microbial gases. Although samples from some mud volcanoes in Southern Sicily (Macalube di Aragona) show isotope signatures consistent with a mixing model between thermogenic and microbial, by combining the molecular compositions (C-1/(C-2 + C-3)) and the methane isotope ratios (delta(13)C(1)), such a process seems to be excluded. Therefore, the occurrence of secondary post-genetic processes should be invoked. Two main hypotheses have been considered: the first hypothesis includes that the gas is produced by microbial activity and altered post-genetically by microbial oxidation of methane, while according to the second hypothesis thermogenic gas have modified their molecular ratios due to vertical migration

Helium and carbon isotopes in thermal waters of the Jalisco block, Mexico

The Jalisco block is a geologically and tectonically complex part of western Mexico. It is considered a distinct crustal unit bounded toward the mainland by rifting and toward the Pacific ocean by the SW section of the Mid-America trench, a contact between the subducting Rivera plate and the continent. On the basis of chemical, helium, and carbon isotopic analyses of 37 groups of thermal springs widely distributed over the Jalisco block, several major tectonic environments can be distinguished. The highest R= 3He/4He ratios with R/Ra (Ra being the atmospheric 3He/4He ratio) approaching MORB values were observed along the Trans-Mexican Volcanic Belt (TMVB) and within the Colima volcanic complex. For springs in the inner part of the block and close to the Pacific coast, including submarine springs at Punta de Mita, typical values were much lower, with R/Ra down to 0.4. A negative correlation between 3He/4He and δ13C of CO2 is suggested to be the result of coupling between radiogenic He and CO2 formed by oxidation of organic-rich sediments. C/3He ratios vary from ~109 for TMVB, typical for volatiles released from the mantle, to > 1011 thus suggesting a substantial addition of carbon from the crust

Thermal anomalies and fluid geochemistry framework in occurrence of the 2000-2001 Nizza Monferrate seismic sequence (northern Italy): Episodic changes in the fault zone heat flow or chemical mixing phenomena?

International audienceThe paper discusses the correlation between the heating of shallow groundwater over a 10 × 20 km wide area close to the town of Nizza Monferrato (Piemonte Region, Northern Italy) and the concomitant local seismic sequences during the period August 2000 ? July 2001. The first seismic sequence started on 21 August 2000 with a Ml = 5.2 earthquake. Within few hours, the local authorities received calls alerting that the groundwater temperature rose from 10 to 30°C in many shallow wells. Our geochemical experimental data and the geological-seismotectonic framework do not allow the hypothesis of simple fluid mixing between the thermal reservoir of Acqui Terme and the Nizza-Monferrato shallow groundwater to explain the observed thermal anomalies. On the other hand, we invoke more complex processes such as frictional heating, mechano-chemistry, fault-valve mechanism, adiabatic decompression and hydrogeologically driven heat flow i.e., thermal effects due to variations of basin-scale permeability field. All these processes are able to transmit heat to the surface and to generate a transient incremental heat flow better than the mass transfer occurring typically when fluids from different reservoirs mix

Giacomo Serpotta e il "pareggiamento delle arti": la decorazione degli oratori fra manipolazione vitalistica e vocazione classicista

ABSTRACT GIACOMO SERPOTTA AND THE “EQUALIZATION OF THE ARTS”: DECORATION OF THE ORATORIES BETWEEN VITALISTIC MANIPULATION AND CLASSICIST VOCATION Ettore Sessa The value of the whole of Giacomo Serpotta's artistic vision in the orchestration of the figu¬rative apparatuses of his oratories was certainly one of the principal primers of his historical-critical raising in the modernist period. In 1901 Mauceri and in 1911 Ricci and Basile heighten a profile of it, however synthetic, of angling and above all of different breath from the rediscovery realized in positivist age. Classifiable, in fact, among the eighteenth century precedents of Gesamtkunstwerk aesthetical plant (according to a rather diffused custom within the artistic historiography of modernist culturaI area or of decadentist origin, as in different formalistic demonstrations of the wealthiest society Belle Époque) the progress of Serpottas artistic way towards tangible expressions of the idea of «the whole work of art» has a unmistakable im¬print of his and, at the same time, a feasibility thanks to the plasticism of gestures and to the uni¬tary multiplicity of his modeled. In his oratories arrangements the "realist" component, not exempted from hedonistic sensual witty remarks, acts on a foundation of Hellenic taste (also in the use of profiles and architectural elements). With wise modulation and with dosing diversified for intensity, according the nature of the subjects, combines history (see the «teatrini» with perspective sceneries, among which the Lepanto battle), micro history (from feminine allegorical subjects, to attractive dames modernly adorned with ends and brocades, to "picciotti" proudly ragged and to the anecdotal of the daily life), mysticism (from the devotional subjects to the allegories of the virtues), obscurity (from numerological components to philosophical attributes) and, finally, mythology (from the allegorical correspondences between Christianity and paganism to classical simbology). Despite the actual halving of this group of oratories (was destroyed by traumatic events as earthquakes and war actions, or by villainous demolitions big part of Serpottas works, among which the SS. Sacrament oratories to Kalsa and those of Saint Maria del Ponticello), the comparison among the palermitan examples reached us entire allows the individualization of the characters of originality typical of the generaI composition, over that of those figurative unanimously accredited among the most valid of the late- Baroque European sculpture. The typical scheme of these oratories, places with a strong secular imprint (predisposed as for cultural reunions how as for the preclusive congregational assemblies, to which the only ones not admitted affiliate were the artists), has as constants: the hall with a rectangular plant; the skiff or pavilion vault with plaster decorations dissimulating the constructive geometry; the sculptural wall register above of a high plinth; windows on the greatest sides (in number of three); two doors in the counterfacade, originally with desk for the assemblies in central position, below the principal devotional allegorical composition. The first oratory to which Giacomo Serpotta imposes an unitary imprint, except the cappellone only defined between 1717 and the following year) is that of SS. Rosary in S. Cita; he has worked since 1685 to 1688 on behalf of SS. Rosary Company. Serpotta is twenty nine, but already since almost ten years, after the apprenticeship with subordinate roles, he showed himself almost beginning in mute with the decorations of Madonna of the Pity church in Monreale, where he operated like Procopio De' Ferrari's collaborator, and perhaps with his interventions in 1678 in the lateral walls of S. Mercurio oratory, to which follow the 1679 decoration works in the Charity oratory in St. Bartholomeo of the Incurable people (no more existing), perhaps S. Pietro and S. Paolo statues dating back to 1680 for the greatest altar in Gancia church, the marble model for Charles H's equestrian monument for Messina (then realized in 1684) and during the two years 1683-1684 the scenic decorations for the transept altars of Carmine Maggiore church (where he collaborates with his brother Giuseppe and realizes the couples of twisted columns gilded and commented by a theory of plaster miniature scenes disposed according to a spiral development). Immediately after S. Cita oratory he realized, between 1688 and 1691, the decorative apparatuses of the Sacrament oratory in S. Nicolò to Kalsa (destroyed because of 1823 earthquake). Only eight years after the completion of this work (about which it was hypothesized that it were an advancement in comparison to the intervention in S. Cita) Giacomo Serpotta is entrusted by S. Francesco from Assisi and S. Lorenzo Companies to realize the complex allegorical and explanatory cycle of the plasters of S. Lorenzo orato¬ry. He worked partly on Giacomo Amato's sketches (to which are probably owed the reform interventions that confer to this oratory a great architectural "squaring" in comparison to others), completing the presbytery within 1706, while already from 1701 he is busy in the definition of the walls. In 1703 he began the counter facade with the monumental wall framework and high-relief representation of St. Lorenzo Martyrdom

Effect of solid waste landfill organic pollutants on groundwater in three areas of Sicily (Italy) characterized by different vulnerability

The aim of this study was to obtain information on the presence and levels of hazardous organic pollutants in groundwater located close to solid waste landfills. Eighty-two environmental contaminants, including 16 polycyclic aromatic hydrocarbons (PAHs), 20 volatile organic compounds (VOCs), 29 polychlorinated biphenyls (PCBs), 7 dioxins (polychlorinated dibenzo-p-dioxins, PCDDs) and 10 furans (polychlorinated dibenzofurans, PCDFs) were monitored in areas characterised by different geological environments surrounding three municipal solid waste landfills (Palermo, Siculiana and Ragusa) in Sicily (Italy) in three sampling campaigns. The total concentrations of the 16 PAHs were always below the legal threshold. Overall, the Fl/Fl + Py diagnostic ratio revealed that PAHs had a petrogenic origin. VOC levels, except for two notable exceptions near Palermo landfill, were always below the legal limit. As concerns PCB levels, several samples were found positive with levels exceeding the legal limits. It is worth noting that the % PCB distribution differs from that of commercial compositions. In parallel, some samples of groundwater containing PCDDs and PCDFs exceeding the legal threshold were also found. Among the 17 congeners monitored, the most abundant were the highest molecular weight ones

Anti-vascular endothelial growth factor monotherapy or combined with verteporfin photodynamic therapy for retinal angiomatous proliferation: a systematic review with meta-analysis

Purpose: To assess functional and anatomical outcomes of intravitreal anti-Vascular Endothelial Growth Factor (anti-VEGF) monotherapy versus combined with verteporfin Photodynamic Therapy (PDT) for Retinal Angiomatous Proliferation (RAP). Methods: Studies reporting outcomes of intravitreal anti-VEGF monotherapy and/or in combination with verteporfin PDT in RAP eyes with a follow-up ≥ 12 months were searched. The primary outcome was the mean change in best corrected visual acuity (BCVA) at 12 months. Mean change in central macular thickness (CMT) and mean number of injections were considered as secondary outcomes. The mean difference (MD) between pre- and post-treatment values was calculated along with 95% Confidence Interval (95% CI). Meta-regressions were performed to assess the influence of anti-VEGF number of injections on BCVA and CMT outcomes. Results: Thirty-four studies were included. A mean gain of 5.16 letters (95% CI = 3.30-7.01) and 10.38 letters (95% CI = 8.02-12.75) was shown in the anti-VEGF group and combined group, respectively (anti-VEGF group vs. combined group, p &lt; 0.01). A mean CMT reduction of 132.45 µm (95% CI = from -154.99 to -109.90) and 213.93 µm (95% CI = from -280.04 to -147.83) was shown in the anti-VEGF group and combined group, respectively (anti-VEGF group vs. combined group, p &lt; 0.02). A mean of 4.9 injections (95% CI = 4.2-5.6) and 2.8 injections (95% CI = 1.3-4.4) were administered over a 12-month period in the anti-VEGF group and combined group, respectively. Meta-regression analyses showed no influence of injection number on visual and CMT outcomes. High heterogeneity was found across studies for both functional and anatomical outcomes. Conclusion: A combined approach with anti-VEGF and PDT could provide better functional and anatomical outcomes in RAP eyes compared with anti-VEGF monotherapy