Representational task formats and problem solving strategies in kinematics and work

Previous studies have reported that students employed different problem solving approaches when presented with the same task structured with different representations. In this study, we explored and compared students’ strategies as they attempted tasks from two topical areas, kinematics and work. Our participants were 19 engineering students taking a calculus-based physics course. The tasks were presented in linguistic, graphical, and symbolic forms and requested either a qualitative solution or a value. The analysis was both qualitative and quantitative in nature focusing principally on the characteristics of the strategies employed as well as the underlying reasoning for their applications. A comparison was also made for the same student’s approach with the same kind of representation across the two topics. Additionally, the participants’ overall strategies across the different tasks, in each topic, were considered. On the whole, we found that the students prefer manipulating equations irrespective of the representational format of the task. They rarely recognized the applicability of a ‘‘qualitative’’ approach to solve the problem although they were aware of the concepts involved. Even when the students included visual representations in their solutions, they seldom used these representations in conjunction with the mathematical part of the problem. Additionally, the students were not consistent in their approach for interpreting and solving problems with the same kind of representation across the two topical areas. The representational format, level of prior knowledge, and familiarity with a topic appeared to influence their strategies, their written responses, and their ability to recognize qualitative ways to attempt a problem. The nature of the solution does not seem to impact the strategies employed to handle the problem

Diritti umani, legge naturale e scienza

I diritti umani, si dice, sono tanto universali quanto le leggi e le teorie della scienza. L\u2019argomento presuppone 1) che un simile confronto fra teorie scientifiche e principi morali \ue8 possibile, e 2) che la scienza \ue8 effettivamente universale. Il secondo assunto sembra ovvio . Quindi, se qualcosa non funziona nell\u2019argomento, la difficolt\ue0 sta nel primo assunto. In quanto segue sosterr\uf2 che, nella misura in cui l\u2019argomento incorre in difficolt\ue0, queste non riguardano tanto il primo quanto il secondo assunto, e che l\u2019universalit\ue0 della scienza non pu\uf2 essere data per scontata

A Fibred Tableau Calculus for Modal Logics of Agents

In previous works we showed how to combine propositional multimodal logics using Gabbay's \emph{fibring} methodology. In this paper we extend the above mentioned works by providing a tableau-based proof technique for the combined/fibred logics. To achieve this end we first make a comparison between two types of tableau proof systems, (\emph{graph} $\&$ \emph{path}), with the help of a scenario (The Friend's Puzzle). Having done that we show how to uniformly construct a tableau calculus for the combined logic using Governatori's labelled tableau system \KEM. We conclude with a discussion on \KEM's features

Labelled Tableaux For Non-Normal Modal Logics

In this paper we show how to extend KEM, a tableaux-like proof system for normal modal logic, in order to deal with classes of non-normal modal logic, such as monotonic and regular, in a uniform and modular way

A Real-Life Study on the Use of Tildrakizumab in Psoriatic Patients

tildrakizumab is a humanized IgG1 kappa monoclonal antibody that selectively targets the p19 subunit of interleukin IL-23, thereby inhibiting the IL-23/IL-17 axis, which is primarily implicated in the immunopathogenesis of psoriasis. Tildrakizumab is approved for the treatment of moderate-to-severe plaque-type psoriasis in adults based on the evidence of two randomized and controlled phase-III clinical trials (reSURFACE 1 and reSURFACE 2). Here, we report our real-life experience treating 53 psoriatic patients (19 female and 34 male) who were administered tildrakizumab every 12 weeks and received follow-ups over 52 weeks. descriptive and inferential statistical analyses were performed, in particular the psoriasis area and severity Index (PASI), dermatology life quality Index (DLQI) and, if applicable, the Nail Psoriasis Severity Index (NAPSI) and Palmoplantar psoriasis physician global assessment (PPPGA). these were assessed at baseline and after different timepoints (weeks) during the follow-up period. we described and evaluated demographical and epidemiological characteristics in our cohort group, focusing on comorbidities. In this group, 35.9% of patients were female and 64.1% were male, with 47.1% being smokers and with a mean age of 51.2 years. a total of 37.7% of these patients was affected by scalp psoriasis; regarding comorbidities, hypertension was the most frequent (32.5%), followed by psoriatic arthritis (PsA) (18.60%) and diabetes (13.9%). at week 52, 93%, 90.2% and 77% of patients achieved a PASI reduction >= 75% (PASI 75), PASI 90 and PASI 100, respectively. In addition, NAPSI, PPPGA and DLQI scores were significantly reduced by week 52. In our cohort of complex psoriasis patients, disease remission began at the end of the fourth week of treatment and remained constant from week 16 to week 52

Normative Autonomy and Normative Co-ordination: Declarative Power, Representation, and Mandate

In this paper we provide a formal analysis of the idea of normative co-ordination. We argue that this idea is based on the assumption that agents can achieve flexible co-ordination by conferring normative positions to other agents. These positions include duties, permissions, and powers. In particular, we explain the idea of declarative power, which consists in the capacity of the power-holder of creating normative positions, involving other agents, simply by "proclaiming" such positions. In addition, we account also for the concepts of representation, namely the representative's capacity of acting in the name of his principal, and of mandate, which is the mandatee's duty to act as the mandator has requested. Finally, we show how the framework can be applied to represent the contract-net protocol. Some brief remarks on future research and applications conclude this contribution

La distruzione dell'oggettivit\ue0 morale: l'emotivismo etico di Alfred J. Ayer e Charles L. Stevenson

Il problema dell'oggettivit\ue0 dei giudizi morali nell'emotivismo etico dal Circolo di Vienna a Charles L. Stevenson

L'esperienza come sistema. Leibniz, Kant e l'architettonica della ragione

Il rapporto fra le filosofie di Leibniz e Kant costituisce un intricato nodo storico che questo libro cerca di districare assumendo che, pi\uf9 che cercare di evitare gli errori di Leibniz, Kant intendesse riformulare nel linguaggio della filosofia critica quella visione \u201carchitettonica\u201d della ragione e della scienza che egli ritrovava nelle dottrine del suo famoso predecessore. Guardando le cose da una prospettiva storica pi\uf9 ampia, ci\uf2 pu\uf2 significare che la filosofia di Leibniz costitu\uec per Kant il banco di prova di quella \u201cdeteologizzazione\u201d della scienza che egli stesso port\uf2 a compimento come effetto non secondario della sua \u201crivoluzione copernicana\u201d trasformando quello che in Leibniz \ue8 il fondamento dell\u2019intera impalcatura teologica in una direttiva imposta dall\u2019operare intrinseco della ragione

Stupratori, cannibali e scienziati

Il saggio attacca la nuova "scienza" della natura umana, autorevolmente propagandata da Steven Pilker, su tre punti: la base evidenziale, la scelta degli universali naturali (lo stupro ma non il cannibalismo) e la capacit\ue0 di spiegare cose chesembrano travalicare la nostra dotazione evolutiva, e argomenta che essa \ue8 insoddisfacente in ognuno di essi