Search

"From Spain, the Broad Front says that the effort must be made by those at the top, with those millions to strengthen public services for the benefit of the population, instead of to attack democracy," Colau contrasted about the model of the right-wing also in other countries, with the example, she said, of billionaires like Elon Musk, who try to "buy or intervene in elections, as we saw in Brazil," where ultimately, citizen mobilization led to the re-election of the progressive Lula. #ImpuestosJustos #FiscalidadProgresiva #DerechoALaVivienda (translated)

The sender wrote that Per Brinkemo was currently working on the book "The Stateless," which, according to the post, discussed the allure of clans, why Sweden's model might struggle to compete, and how crime could become more dangerous when people began to feel secure. https://t.co/8VsFZsK0FV #brott #familj #Sverige #SE (translated)

57 YEARS OF #PHOTOVOLTAICS IN ITALY I hope I will be forgiven a small indulgence, but this is one of those events that happen only once in a lifetime, and since it's about MY life, I want to celebrate it and, in this social media age, what better celebration than to share it with my online friends? To make a long story short, exactly 57 years ago, in September 1969, I started working at the Transmission Electron Microscopy Laboratory of the Physics Institute in Bologna. The laboratory director was Prof. Ugo Valdrè, the undisputed father of electron microscopy in Italy. Under his direction, I began working on the preparation of silicon samples to enable the first high-definition observations of the lattice structure of silicon and its related defects. Then many years went by, during which I moved to the CNR, I saw new models of transmission and scanning electron microscopes being developed, always continuing to work on the characterization of materials for the production of photovoltaic cells. In that laboratory, we produced the first solar cells made in Italy and the first photovoltaic panel with an incredibly high efficiency at that time of 12%. These were exciting years, full of beautiful experiences, many small discoveries, and above all, a lot of tedious routine work that allows all those who work with silicon today to deeply understand this material and create increasingly perfect and high-performance products. Well, that's just it, but 57 years have passed, and since at my age, migrating from earthly life to the cloud is instantaneous, I will bore you annually and will stop (for reasons beyond my control) only after I have (reluctantly) completed my migration to the cloud. 😉 ------------------------------------ The larger photo above was taken with a scanning electron microscope and depicts the anti-reflective surface of a monocrystalline silicon photovoltaic cell. These pyramids were obtained through a chemical treatment with a solution of nitric acid and hydrofluoric acid. For decades, this method had been abandoned in favor of screen-printed films, but it is making a comeback in high-efficiency and bifacial cells. ------------------------------------ The smaller photo at the bottom left is the electron microscope image of a dislocation on a silicon crystal. The "dislocation" is a defect in the lattice structure of silicon due to a shift of the atoms. A practical example is a stack of books where some planes overlap others with a small lateral displacement. Lattice defects reduce the efficiency of cells which, to achieve high efficiency, must be made from silicon with a perfect crystal lattice structure. In this specific case, the lattice shift was also used as a resolution test for the electron microscope that could distinguish two objects spaced just 2.5 Angstroms apart. ------------------------------------ The central photo at the bottom is a reconstruction of the first electron microscope invented and made by the Germans Ernst Ruska and Max Knoll in 1931. It is based on the fact that the resolving power is inversely proportional to the wavelength of the radiation used, which is smaller for an electron beam compared to a photon beam, allowing for several orders of magnitude increase. Anyone working in photovoltaics should know that it is thanks to the electron microscope that it is now possible to produce huge silicon wafers free of defects in the atomic lattice structure, which would greatly reduce the efficiency of the cells. I worked for 11 years with one of these machines first at the Physics Institute of Bologna and then at the LAMEL Laboratory of the National Research Council. ------------------------------------ I worked for 11 years with one of these machines first at the Physics Institute of Bologna and then at the LAMEL Laboratory of the National Research Council; in fact, the last photo at the bottom right is of "my" microscope which I cleaned, polished, and maintained more than a new car. Although it was 1969, as you can see, it was a bit fancier and more efficient than the one in the museum and was equipped with X-ray microanalysis for precise characterization of the chemical composition of materials. It operated at 100 kV, 200,000 magnifications with a resolution of 2.5 Angstroms. It was exactly the model in the photo, SIEMENS Elmiskop 102 #photovoltaics #microscopy #historyofthephotovoltaics #electronmicroscope #LAMEL #SolarEnergy #CNR #photovoltaiccells www.fotovoltaici.info (translated)

Alicia del Río, spokesperson for the Tenants' Union, criticizes the use of the Urda accident to delegitimize the general strike of March 11, which fights for public services and a structural change in the housing model. #HuelgaGeneral #DerechoALaVivienda #MovilizaciónSocial (translated)

"The problem has a broader significance than an individual civil dispute. This refers to a specific business model that involves searching for properties with unresolved or complicated legal status, acquiring small shares, and then directing pressure and legal actions against the individuals residing in the premises." – writes Paulina Matysiak, adding that such practices are presented in training courses on how to make money in real estate. #nieruchomości #eksmisje #współwłasność (translated)

The 83rd edition of the Milan EICMA show has broken records with more than 765 exhibitors and a boom in the motorcycle market in Europe, driven by the competitiveness of Chinese and Indian manufacturers, while Euro-Japanese brands seek to innovate and reaffirm their flagship models. #EICMA2026 #Motos #InnovaciónAutomotriz (translated)

A Swedish report analyzes how the Kremlin is preparing a new elite and shaping public opinion in Russia through an emerging system of indoctrination and promotion of loyal young officials, highlighting the strategy to consolidate the regime following Vladimir Putin's departure. #Putinism #Rusia #ElitePolitice (translated)

The new report from the Observatory on the Socio-Economic Impact of Addictions (Oised) highlights a serious shortage of professionals in addiction services, with only 10% of those needing assistance actually reached, requiring an innovative organizational model to fill these gaps. #Dipendenze #SanitàTerritoriale #CaseDellaComunità (translated)

The Local Health Unit of Gaia/Espinho is implementing the TIME4LUNG project, which aims to test a new, more sustainable model for lung cancer screening, using a two-step approach that involves an initial blood assessment before resorting to computed tomography. #Saúde #CancroDoPulmão #RastreioSustentável (translated)

The Republican Party faces a harsh reality after the recent elections, where loyalty to Donald Trump's style has not been enough to secure victories in its traditional strongholds, revealing a lack of a sustainable model and the inability of its candidates to replicate his electoral success. #Trump #PartidoRepublicano #Elecciones2026 (translated)