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The Hidden Short-Term Electro-Thermal–Optical Feedback Loop in Circuit-Level Modeling of PV Hot-Spots
No full textA systematic study on the influence of scale, hull roughness, and draft on form factor estimation
No full textIn recent years, considerable attention has been given to the prediction of form factor of ships and the associated scale effects, as the accuracy of such estimations has come under scrutiny. This paper explores the discrepancies between model-scale and full-scale form factor predictions derived from CFD simulations using a newly developed approach known as the 2-k method. This method enhances the precision of form factor evaluation, particularly when applied at full scale, showing notable improvements for hulls with wetted transoms. This study tests the hypothesis of 2-k and transom correction methods with different numerical tools and methods. It reveals a strong dependence of the form factor on grid resolution across different scales, while aligning well with findings reported in the literature. Additionally, a sensitivity analysis based on uniformly distributed surface roughness is performed. The 2-k method is also applied to systematically varied transom submergence conditions, demonstrating consistent form factor trends across both model and full scales. Furthermore, when evaluating draft variations, the method yields results that more closely match experimental data. These findings suggest that the 2-k method is a reliable tool for estimating the form factor in scenarios involving complex turbulent flow, such as in the wake of the transom
Ars dicendi e civitas: la lezione dell’oratoria classica nel linguaggio giuridico moderno
No full textLa chiarezza, l’accessibilità e l’inclusività del linguaggio amministrativo ci riportano alla concezione dell’oratoria come arte complessa della parola, intrinsecamente legata a un orizzonte etico e civile e costituiscono il fil rouge che attraversa la storia del linguaggio giuridico fino all’età contemporanea
Arnold Toynbee, Brandt signs the death certificate of Bismarck’s Prussia (1972) (https://www.academia.edu/145708564/Arnold_Toynbee_Brandt_signs_the_death_certificate_of_Bismarck_s_Prussia_1972_)
No full textADDITIONS, INTEGRATIONS, CORRECTIONS AND SUPPLEMENTS TO THE BIBLIOGRAPHY OF ARNOLD JOSEPH TOYNBEE, No. 552, Addition to Part I, Works by Arnold J. Toynbe
Influence of red gorgonian (Paramuricea clavata) forests on coralligenous community structure across different regions, seasons, thermal environment, and water trophic state
No full textHabitat-forming species are essential for maintaining biodiversity and ecosystem functioning in marine benthic ecosystems, but their role in modulating community responses to environmental stressors across spatial and temporal scales remains underexplored. In the Mediterranean Sea, the red gorgonian Paramuricea clavata forms structurally complex animal forests within coralligenous assemblages, able to enhance habitat heterogeneity. This study assessed the influence of P. clavata forests on the structure of coralligenous communities across five Mediterranean regions and two periods (summer and autumn), incorporating thermal (median temperature, temperature range, frequency and duration of heating events) and trophic (chlorophyll, pheophytins, carbohydrates, proteins, organic and inorganic suspended matters) environmental descriptors. Using Generalized Linear Latent Variable Models, we found that environmental variables—particularly temperature, organic matter, and trophic resource availability—strongly shaped coralligenous community structure. Forested sites exhibited a reduced abundance of opportunistic groups (e.g., turf algae, hydroids, perforating sponges) under conditions of elevated temperature and organic matter concentrations, highlighting the buffering role of P. clavata forests. However, under intense and prolonged thermal stress combined with high concentrations of carbohydrates and proteins, P. clavata itself showed increased necrosis, indicating limits to its resilience. Considering the regional and temporal scales, region emerged as the strongest predictor of community structure (explaining 45% of the variation in group abundance), followed by environmental variables (19%) and period (12%). Further, the presence of P. clavata forests significantly increased species richness, Shannon diversity, and evenness. These findings emphasize the importance of P. clavata forests in promoting ecological stability and highlight the vulnerability of this foundation species to climate-driven stressors. Understanding these dynamics is pivotal for predicting future changes in biodiversity and for informing conservation strategies targeting Mediterranean coralligenous reefs
Margaret Scolari (Margaret Scolari Barr). Un'italiana al MoMA
No full textSempre citata come la moglie di Alfred Barr, primo direttore del Museum of Modern Art (MoMA) di New York, Margaret Scolari svolse un ruolo nell’istituzione che, in realtà, andò ben oltre quello di assistente del marito. Nata a Roma e formatasi in storia dell’arte tra l’Italia e gli Stati Uniti, nella sua lunga
collaborazione con il museo tra il 1930 e gli anni Sessanta, contribuì in modo decisivo a includere l’arte e l’architettura moderna italiana nelle dinamiche culturali dell’istituzione, inaugurando un dibattito
transatlantico che aggiornò l’immaginario dell’Italia nella percezione internazionale dell’epoca
An innovative hybrid architecture to overcome misreporting in supply chain coordination under information asymmetry
No full textPlanetary Modulation of Solar and Climate Oscillations
No full textRecent studies show that solar activity exhibits a complex array of oscillatory behaviors spanning from monthly to millennial scales. Among these, the 11-year Schwabe cycle stands out as the most widely recognized solar oscillation. A number of solar oscillations appear to influence Earth's climate and offer promising avenues for understanding and forecasting climate variability. The origin of this array of solar cycles is still debated within the scientific community. One prevailing view links solar cycles entirely to internal magnetic dynamo processes operating inside the Sun. An alternative hypothesis suggests that plan- etary gravitational interactions and orbital configurations may modulate the solar dynamo itself, introducing specific periodic solar oscillations. This study examines key observational findings that support the planetary hypothesis of the connection of solar variability with climate dynamics. It is shown that planetary-induced spectral features closely align with the dominant solar and climate cycles across a broad range of temporal scales
Toward rapid testing for molecular authentication: Novel method for multianalyte identification of olive, sunflower, soy, sesame and corn DNA by visual biosensing
No full textBackground: Product authentication ensures consumer safety by verifying composition. Two main strategies exist: (i) instrumental methods (NMR, FTIR, Raman, chromatography, mass spectrometry) with chemometrics to create metabolite fingerprints, (ii) DNA-based molecular authentication. DNA methods are robust against environmental or harvest variations. They start with PCR amplification, followed by capillary electrophoresis with laser-induced fluorescence for high-resolution DNA fragment separation. Additional tools, including high-resolution melting analysis and flow cytometry, further confirm DNA amplification. There is a need for methodological platforms in the simple rapid test format amenable to field testing for molecular authentication. Results: Unlike existing methods that require costly equipment and specialized personnel, we present a novel method combining multiplex conventional PCR with direct multiplex visual identification of five species by a dry-reagent strip biosensor. Olive, sunflower, soybean, sesame, and corn DNA are differentiated during PCR, as amplification occurs only when the corresponding species is present. PCR products are applied directly to the biosensor eliminating the need for post-PCR enzymic reactions, purification, pretreatment, or heat denaturation, thereby reducing assay time and user steps. The biosensor delivers results within 15–20 min, detecting olive DNA adulteration with as low as 5 % sesame, soybean, and sunflower, and 10 % corn. Measurement variability is below 5 %. Significance: The proposed method integrates multiplex conventional PCR and direct multiplex biosensor, addressing the challenge of multiplex adulteration detection in a rapid, field-deployable format. It offers unique advantages of simplicity, portability, and low cost, with detection by the naked eye eliminating the need for expensive instrumentation. The multiplexing capability allows simultaneous identification of several potential adulterants, making the method broadly applicable for molecular authenticity assessment of various products