Higher order beliefs and the dynamics of exchange rates

This paper investigates the role of higher order beliefs in the formation of exchange rates. Our model combines a standard macroeconomic dynamics for the exchange rates with a microeconomic specification of agents' heterogeneity and their interactions. The empirical analysis relies on a state space model estimated through Bayesian methods. We exploit data on macroeconomic fundamentals in a panel of subjective forecasts on the euro/dollar exchange rate. The equilibrium strategy on the optimization process of the predictors shows that higher order beliefs is the relevant factor in performing individual forecasting. Moreover public information, namely past exchange rates and fundamentals, plays a crucial role as a coordination device to generate expectations among agents on the basis of their forecasting abilities

Fronteras simbólicas. Aproximaciones a las discusiones sobre los procesos regulados de construcción de la otredad

In this paper, the symbolic boundary will be discussed as an analytical category, agreeing with Rizo and Romeu (2006) that it gives the possibility of approaching the understanding of the logics and dynamics involved in the development of what we consider our own and otherness. Assuming, with greater or lesser consensus, that it is a theoretical-methodological tool which allows the understanding of the particularities that these dissimilar subjective constructions acquire in the encounter, either in terms of negotiation or - in all probability - ratifying limits dependent on the difference. Therefore, it is necessary to consider identity as a category in which the main debates will be ground and which appears as essential to achieve a comprehensive understanding of this polysemic and aporetic concept always imbricated in the approach to symbolic boundaries.En el presente trabajo se discutirá la frontera simbólica como categoría analítica, acordando con Rizo y Romeu (2006) en que esta nos ofrece la posibilidad de acercarnos a la comprensión de las lógicas y dinámicas implicadas en la construcción de lo propio y lo ajeno. Asumiendo,con mayor o menor consenso, que se trata de una herramienta teórico-metodológica para comprender las particularidades que estas construcciones subjetivas disímiles adquieren en el encuentro, ya sea en términos de negociación o - sobre todo - ratificando límites en función de la diferencia. En este sentido, resulta inevitable traer a la discusión la categoría identidad,sobre la cual se reseñarán los principales debates al respecto, fundamentales para lograr una cabal comprensión de este concepto polisémico y aporético siempre imbricado en el abordaje de las fronteras simbólicas

Entrevista Susana Novaro, directora de la Asociación Civil Idas y Vueltas

Susana Novaro es la actual directora de la asociación civil Idas y Vueltas. Recuerda con entusiasmo sus primeras participaciones en la temática de las migraciones; allá por la década del ochenta, cuando estaba «recién recibida». Fue, nos contó, en un proyecto organizado por Amnistía Internacional, el Instituto de Estudios Legales y Sociales del Uruguay (Ielsur) y el Servicio Paz y Justicia (Serpaj), donde se encargaba de la elegibilidad de las personas que solicitaban refugio en nuestro país. Se trataba en su mayoría de ciudadanos colombianos, migrados por motivos políticos, durante el período de represión y «genocidio político» de la Unión Patriótica. Y ciudadanos chilenos expulsados de la universidad durante la dictadura de Augusto Pinochet

Poesia contemporanea e fotografia: corpo poetico e nutrimento immaginifico

Poesia e immagine appaiono come le declinazioni di una fonte comune dalla quale possono generarsi vicendevolmente e appartenersi. Ogni gesto espressivo, verbale o iconografico, è il luogo in cui impera la forma, il luogo in cui si celebra il baudelairiano «culte des images». In queste pagine vorremmo non solo ripercorrere i tratti della relazione poesia-immagine, e nella fattispecie poesia e fotografia, ma anche offrire un percorso di suggestioni, non tanto per definire una supremazia tra un ..

Energy-efficient Feedback Tracking on Embedded Smart Cameras by Hardware-level Optimization

Embedded systems have limited processing power, memory and energy. When camera sensors are added to an embedded system, the problem of limited resources becomes even more pronounced. In this paper, we introduce two methodologies to increase the energy-efficiency and battery-life of an embedded smart camera by hardware-level operations when performing object detection and tracking. The CITRIC platform is employed as our embedded smart camera. First, down-sampling is performed at hardware level on the micro-controller of the image sensor rather than performing software-level down-sampling at the main microprocessor of the camera board. In addition, instead of performing object detection and tracking on whole image, we first estimate the location of the target in the next frame, form a search region around it, then crop the next frame by using the HREF and VSYNC signals at the micro-controller of the image sensor, and perform detection and tracking only in the cropped search region. Thus, the amount of data that is moved from the image sensor to the main memory at each frame is optimized. Also, we can adaptively change the size of the cropped window during tracking depending on the object size. Reducing the amount of transferred data, better use of the memory resources, and delegating image down-sampling and cropping tasks to the micro-controller on the image sensor, result in significant decrease in energy consumption and increase in battery-life. Experimental results show that hardware-level down-sampling and cropping, and performing detection and tracking in cropped regions provide 41.24% decrease in energy consumption, and 107.2% increase in battery-life. Compared to performing software-level down-sampling and processing whole frames, proposed methodology provides an additional 8 hours of continuous processing on 4 AA batteries, increasing the lifetime of the camera to 15.5 hours

Conoscere è partecipare: digital public history, wiki e citizen humanities

La citizen science (CS), “scienza dei cittadini” o “scienza partecipata”, indica la partecipazione e il coinvolgimento attivo dei cittadini in attività di ricerca scientifica. Mentre la CS include le scienze naturali, come la biologia, la chimica e la fisica e la citizen social science si occupa delle società, le citizen humanities si applicano alle discipline storiche, letterarie, linguistiche e filosofiche. La digital public history, per la sua vocazione pubblica, partecipativa e collaborativa in un contesto digitale, si presenta come uno dei campi di applicazione privilegiata dalle citizen humanities. Il valore aggiunto delle citizen humanities dipende primariamente da due condizioni alla base della digital public history: la partecipazione degli storici che non provengono dall’accademia alla creazione di progetti collaborativi e la comunicazione dei risultati della ricerca storica al pubblico della rete. L’articolo intende riflettere su come la scrittura collaborativa, resa possibile dagli strumenti wiki, possa costituire un ottimo punto di partenza per una democrazia partecipata che si situi nel solco delle citizen humanities.Citizen science (CS), "citizen science" or "participatory science", refers to the participation and active involvement of citizens in scientific research activities. While CS includes natural sciences, such as biology, chemistry and physics, and citizen social science deals with societies, citizen humanities apply to historical, literary, linguistic and philosophical disciplines. Digital public history, due to its public, participatory and collaborative vocation in a digital context, presents itself as one of the privileged fields of application of citizen humanities. The added value of citizen humanities depends primarily on two conditions underlying the digital public history: the participation of historians who do not come from the academy in the creation of collaborative projects and the communication of the results of historical research to the public on the network. The article intends to reflect on how collaborative writing, made possible by wiki tools, can be an excellent starting point for a participatory democracy that is located in the wake of citizen humanities

Estimation of the incubation period and generation time of SARS-CoV-2 Alpha and Delta variants from contact tracing data

: Quantitative information on epidemiological quantities such as the incubation period and generation time of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants is scarce. We analysed a dataset collected during contact tracing activities in the province of Reggio Emilia, Italy, throughout 2021. We determined the distributions of the incubation period for the Alpha and Delta variants using information on negative polymerase chain reaction tests and the date of last exposure from 282 symptomatic cases. We estimated the distributions of the intrinsic generation time using a Bayesian inference approach applied to 9724 SARS-CoV-2 cases clustered in 3545 households where at least one secondary case was recorded. We estimated a mean incubation period of 4.9 days (95% credible intervals, CrI, 4.4-5.4) for Alpha and 4.5 days (95% CrI 4.0-5.0) for Delta. The intrinsic generation time was estimated to have a mean of 7.12 days (95% CrI 6.27-8.44) for Alpha and of 6.52 days (95% CrI 5.54-8.43) for Delta. The household serial interval was 2.43 days (95% CrI 2.29-2.58) for Alpha and 2.74 days (95% CrI 2.62-2.88) for Delta, and the estimated proportion of pre-symptomatic transmission was 48-51% for both variants. These results indicate limited differences in the incubation period and intrinsic generation time of SARS-CoV-2 variants Alpha and Delta compared to ancestral lineages

The Role of Attitudes Toward Medication and Treatment Adherence in the Clinical Response to LAIs: Findings From the STAR Network Depot Study

Background: Long-acting injectable (LAI) antipsychotics are efficacious in managing psychotic symptoms in people affected by severe mental disorders, such as schizophrenia and bipolar disorder. The present study aimed to investigate whether attitude toward treatment and treatment adherence represent predictors of symptoms changes over time. Methods: The STAR Network \u201cDepot Study\u201d was a naturalistic, multicenter, observational, prospective study that enrolled people initiating a LAI without restrictions on diagnosis, clinical severity or setting. Participants from 32 Italian centers were assessed at three time points: baseline, 6-month, and 12-month follow-up. Psychopathological symptoms, attitude toward medication and treatment adherence were measured using the Brief Psychiatric Rating Scale (BPRS), the Drug Attitude Inventory (DAI-10) and the Kemp's 7-point scale, respectively. Linear mixed-effects models were used to evaluate whether attitude toward medication and treatment adherence independently predicted symptoms changes over time. Analyses were conducted on the overall sample and then stratified according to the baseline severity (BPRS < 41 or BPRS 65 41). Results: We included 461 participants of which 276 were males. The majority of participants had received a primary diagnosis of a schizophrenia spectrum disorder (71.80%) and initiated a treatment with a second-generation LAI (69.63%). BPRS, DAI-10, and Kemp's scale scores improved over time. Six linear regressions\u2014conducted considering the outcome and predictors at baseline, 6-month, and 12-month follow-up independently\u2014showed that both DAI-10 and Kemp's scale negatively associated with BPRS scores at the three considered time points. Linear mixed-effects models conducted on the overall sample did not show any significant association between attitude toward medication or treatment adherence and changes in psychiatric symptoms over time. However, after stratification according to baseline severity, we found that both DAI-10 and Kemp's scale negatively predicted changes in BPRS scores at 12-month follow-up regardless of baseline severity. The association at 6-month follow-up was confirmed only in the group with moderate or severe symptoms at baseline. Conclusion: Our findings corroborate the importance of improving the quality of relationship between clinicians and patients. Shared decision making and thorough discussions about benefits and side effects may improve the outcome in patients with severe mental disorders

Clinical features and outcomes of elderly hospitalised patients with chronic obstructive pulmonary disease, heart failure or both

Background and objective: Chronic obstructive pulmonary disease (COPD) and heart failure (HF) mutually increase the risk of being present in the same patient, especially if older. Whether or not this coexistence may be associated with a worse prognosis is debated. Therefore, employing data derived from the REPOSI register, we evaluated the clinical features and outcomes in a population of elderly patients admitted to internal medicine wards and having COPD, HF or COPD + HF. Methods: We measured socio-demographic and anthropometric characteristics, severity and prevalence of comorbidities, clinical and laboratory features during hospitalization, mood disorders, functional independence, drug prescriptions and discharge destination. The primary study outcome was the risk of death. Results: We considered 2,343 elderly hospitalized patients (median age 81 years), of whom 1,154 (49%) had COPD, 813 (35%) HF, and 376 (16%) COPD + HF. Patients with COPD + HF had different characteristics than those with COPD or HF, such as a higher prevalence of previous hospitalizations, comorbidities (especially chronic kidney disease), higher respiratory rate at admission and number of prescribed drugs. Patients with COPD + HF (hazard ratio HR 1.74, 95% confidence intervals CI 1.16-2.61) and patients with dementia (HR 1.75, 95% CI 1.06-2.90) had a higher risk of death at one year. The Kaplan-Meier curves showed a higher mortality risk in the group of patients with COPD + HF for all causes (p = 0.010), respiratory causes (p = 0.006), cardiovascular causes (p = 0.046) and respiratory plus cardiovascular causes (p = 0.009). Conclusion: In this real-life cohort of hospitalized elderly patients, the coexistence of COPD and HF significantly worsened prognosis at one year. This finding may help to better define the care needs of this population