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The aim was to investigate the toxicity of selected metal oxide nanoparticles MO-NPs on the brine shrimp Artemia salinaby evaluating mortality and behavioural and biochemical responses. Mortality and behavioural responses swimming speed alteration and enzymatic activities of cholinesterase, glutathione-S-transferase and catalase were evaluated. Although the MO-NPs did not induce any mortality of the larvae, they caused changes in behavioural and biochemical responses. Swimming speed significantly decreased in larvae exposed to CeO 2 NPs.

Catalase activity significantly increased in larvae exposed to Fe 3 O 4 NPs. In conclusion, swimming alteration and cholinesterase activity represent valid endpoints for MO-NP exposure, while glutathione-S-transferase and catalase activities appear to be NP-specific. This is a preview of subscription content, log in to check access. Rent this article via DeepDyve. Aebi, H. Catalase in vitro.

Methods in Enzymology,— Alyuruk, H. A video tracking based improvement of acute toxicity test on Artemia salina. Marine and Freshwater Behaviour and Physiology. Google Scholar. Amiard-Triquet, C. Behavioral disturbances: the missing link between sub-organismal and supra-organismal responses to stress? Prospects based on aquatic research. Human and Ecological Risk Assessment, 1587— Ates, M. Effects of aqueous suspensions of titanium dioxide nanoparticles on Artemia salina : assessment of nanoparticle aggregation, accumulation, and toxicity.

Environmental Monitoring and Assessment,— Comparative evaluation of impact of Zn and ZnO nanoparticles on brine shrimp Artemia salina larvae: effects of particle size and solubility on toxicity.

Environmental Science: Processes and Impacts, 15 Barahona, M. Environmental Pollution,— Barsan, N. Fundamental and practical aspects in the design of nanoscaled SnO 2 gas sensors: a status report, Fresenius. Journal of Analytical Chemistry,— Baun, A. Ecotoxicity of engineered nanoparticles to aquatic invertebrates: a brief review and recommendations for future toxicity testing.

Ecotoxicology, 17— Buffet, P. Behavioural and biochemical responses of two marine invertebrates Scrobicularia plana and Hediste diversicolor to copper oxide nanoparticles. Chemosphere, 84— Buzea, C. Nanomaterials and nanoparticles: sources and toxicity.

Biointerphases, 2MR17—MR Canesi, L.Occasioni mancateun libro dell'antropologo Federico Bonadonna, consulente per anni al comune di Roma. I nuovi poveri negli interstizi delle metropoli.

I dati #INVALSI come strumento per sostenere l’innovazione e il miglioramento scolastico

Eppure ce li possiamo immaginare, antropologicamente parlando. Di questa galleria di tipi umani ci parla il nuovo libro di Federico Bonadonna, Occasioni mancate edizioni l'orecchio di Van Gogh, pp. Gli interstizi metropolitani sono fessure materiali e ideali dove le persone di strada trovano precario rifugio.

Secondo il sistema delle categorie sociali tuttora in voga, gente degli interstizi sono i senza tetto, gli zingari, i lavoratori del sesso da marciapiede. Finire a dormire per strada non ci vuole poi molto. Viveva in centro, a Fontana di Trevi, per vicini aveva il presidente Pertini e sua moglie. Prima c'hanno aumentato la pigione e poi, visto che non potevamo permettercela, c'hanno sfrattato.

La figlia col marito e tutta la famiglia escono un giorno per una gita ai Castelli. Oggi Ninetta vive in un centro d'accoglienza per barboni in attesa di un posto in una casa di riposo. Il mutuo della casa, cointestato, continua a essere pagato da entrambi. In questo modo, lo stipendio di mille e cento euro al mese di Carlo, tolto il mutuo e le spese per il mantenimento della figlia, quasi si dimezza: "E con seicentocinquanta euro come si fa a campare?

Fino a che Carlo non si ritrova a dormire in macchina. Quando non dorme come un corpo senza vita in posizioni improbabili sul ciglio della strada, succhia del vino da una bottiglia occultata in un sacchetto di carta da pacchi. Fa cose che a tutti gli altri sono proibite E' l'unica persona che si permette di bere alcolici per la strada in un quartiere sciita. Tra lo yuppie e il clochard rimane solo un sottilissimo confine.

Cosa succede nella scuola? Vuoi un sito in flash? Nuovo utente? Annunci online. Un libro dell'antropologo Federico Bonadonna: Occasioni mancate. Federico Bonadonna Occasioni mancate Ed. Diario Riflettendo su Impossibile dimenticare Riceviamo da Seminario "Invisibile" Dal mio cassetto. Pedagogisti italiani Terra2. Rivista di Scienze Storiche Articoli del Prof.

FrancoBlezza Studi Filosofici e Pedagogici Sognatore Aestetica Pulvigiu?

E' da visitare! Fragoline dal Cercavo Buddhi eL'attesa davanti al cancello con gli occhi ancora assonnati ha lasciato il passo a un bip sul cellulare o sul pc. I compagni sono lontani, troppo, impossibile scambiarsi un abbraccio o uno sguardo d'intesa, arduo avere un suggerimento. Per fronteggiare l'emergenza Coronavirus, il governo ha imposto la chiusura delle scuole di tutto in territorio nazionale fino al tre aprile.

Un termine che adesso sembra destinato a slittare. Una sfida che porta a ripensare tempi e modi di fare lezione, a sperimentare nuove strategie comunicative. Tutti, ognuno per la propria parte, si stanno impegnando al massimo.

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Ci sono poi questioni da affrontare che sono legare strettamente all'hardware e al software, indispensabili per la didattica online". La sfida, come la definisce la coordinatrice, inizia banalmente dalla parte tecnica. Il ministero ha messo a disposizione delle piattaforme, ma non tutte le scuole le possono utilizzare.

E' vero che con i fondi erogati negli ultimi anni in moltissimi istituti sono arrivate le attrezzature. Le stesse famiglie spesso, non dispongono di un device per ogni singolo componente. Pensiamo a quelle case dove uno o entrambi i genitori sono in smart working. Possibilmente il computer o il telefono sono utilizzati da loro e il figlio non ha un supporto da utilizzare a tutte le ore".

Poi ci sono le lezioni, che devono essere ripensate nei tempi e nei modi. Anche i docenti poi devono essere supportati. L'ufficio scolastico regionale da quanto il Covid ha stravolto il concetto di "scuola" ha organizzato dodici videoconferenze aperta tutti gli istituti e rivolte a dirigente e animatori digitali.

Un lavoro in itinere insomma. Per rispondere alle esigenze di tutti". In quest'ottica il coordinamento con gli Osservatori di area per la prevenzione della dispersione scolastica e la promozione del successo formativo. Devi disattivare ad-block per riprodurre il video. Play Replay Pausa. Disattiva audio Disattiva audio Disattiva audio Attiva audio. Indietro di 10 secondi.

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Avanti di 10 secondi. Attiva schermo intero Disattiva schermo intero. Attendi solo un istantedopo che avrai attivato javascript.

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Connettiti con Facebook. Password dimenticata? Non sei registrato? Crea un Account.I recently watched the movie Minority Report for about the fifth time. This is a representation of my favorite character Agatha an ethereal human with special gifts just like me The movie is a noir-ish sci-fiction set in a near future, totalitarian world.

Pre-cognitives are humans whose only function is to see future murders so the pre-crime police can stop them. The precogs, of which Agatha is one of three, float in a state of sensory deprivation. A pool of milky neural water heightens their gift of psychic perception which can be viewed on interactive virtual holograph monitors. So now, even your subconscious thoughts are no longer private. Just another example how, our search for a perfect future can throw us backward if we aren't careful.

And we aren't ever careful are we? No we're not, we're only imperfect humans. To make the shot first I did a hand held selfie. I represented the neural water with a texture over layer made with an ICM by quickly panning the camera across my face.

It came out exactly how I pre-conceived it :. There is only one thing this little dog is afraid of and that is a big dog. This is my attempt to revisit and improve upon the action shot of a couple days ago. I'm using a longer lens mm 2.

As Bean and Rosie took their places and were about to run toward me a big German Shepherd dog came out of one of the garages and scared the life out of them. They took off with a yelp and ran for their lives. When everyone settled down they could see the big dog was just standing there, not chasing them.

L'emergenza Covid-19 cambia il volto della scuola: "Così Palermo raccoglie la sfida"

He only went to the edge of his property and stopped. You can see him in the background blur. We did a couple more takes but this one came out the best of course because they were startled. I'm particularly happy that all six of their feet are off the ground! Actually, I don't think their feet touched ground the whole time they were running :.

My Images may not be used, copied or altered in any way without my written permission. Sometimes it's possible Commento musicale: Mogwai, White Noise. Segnalo, in quanto a tema con il titolo, questo film di Alberto Fasulo, dal titolo per l'appunto di "Rumore bianco", che mi hanno gentilmente segnalato: www.

Mongolia, Deserto del Gobi, agosto Nella luce abbacinante del pomeriggio, la sensazione era di muoversi in un oceano di onde luminose. Per chi desiderasse aride scusate l'involontaria ironia! Information in English about the place: en. You might prefer to view it on black in lightbox: www. I did this self-portrait in response to something that has been heavy on my mind recently. A few weeks ago we had our air conditioning system replaced. Jim, who we have known for about a year, did the work for us.

When he came to the house my normally friendly dogs went berserk. They struck aggressive postures and barked wildly at him.Prima pagina. Emilia Romagna. Regione Selezionata. Altre regioni.

Friuli Venezia Giulia. Trentino-Alto Adige. Valle D'Aosta. Spettacoli e Cultura. Scienza e Tecnologia. Stampa estera. Informazione locale. Leggi la notizia. Persone: coronavirus fasulo.

Organizzazioni: ministero dell'istruzione palermotoday. Prodotti: rete. Luoghi: palermo zen. Tags: emergenza scuola. Palermo Today.

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Covid, il prefetto di Palermo: 'Dati incoraggianti ma restiamo vigili'. Una bassa circolazione del covid non esclude ulteriori picchi.

Mario D'Agata

Da una parte dobbiamo essere soddisfatti, dall'altra dobbiamo Persone: covid giuseppe forlani. Organizzazioni: italpress. Luoghi: palermo italia.

Tags: prefetto vigili. Strage di via D'Amelio 28 anni dopo: le iniziative a Palermo. Anche stavolta, tante fiaccole in cerca di verit illumineranno la citt di Palermo per ribadire che Paolo vive, con le sue idee, i suoi valori, le sue battaglie. A causa delle norme anti covidnon Persone: falcone paolo borsellino. Organizzazioni: comunit Prodotti: forum.

Luoghi: palermo sicilia. Tags: iniziative fiaccolata. Solo 4 bocciati ogni mille. Record di superano l'11 per cento. Organizzazioni: ministero dell'istruzione. Luoghi: sicilia. Salvini sta facendo danni.Mario D'Agata 29 May — 4 April was an Italian professional boxerwho was the first, and so far only, deaf world champion in boxing. He was a linealEuropeanand Italian bantamweight champion. D'Agata was born on 29 Mayin ArezzoItaly.

He had a tough childhood as a consequence of his disabilities, the victim of taunting from fellow school children. Feeling the need to prove himself equal, he resorted to street fighting as a way to demonstrate his equality. D'Agata was one of three children out of seven to be born deaf in his family. His parents moved him from Tuscany to Rome at an early age, hoping to find doctors who would cure him. One afternoon he noticed a poster of a boxer adorning the door to a boxing gym.

Upon entering he was enamored with how the boxers practiced their fighting in a polished, stylized way. D'Agata was drawn into boxing from that moment on. Due to the outbreak of the Second World Warhowever, D'Agata had to wait until he was 20 years old to fight as an amateur.

Inhe began an amateur career that saw him win 90 out of bouts. On 14 OctoberD'Agata turned professional, defeating Giuseppe Saladari by a decision in six rounds. He built a record of 10—0 with 1 knockout before suffering his first loss, at the hands of Romolo Re2 Augustby a decision in ten. Another loss to Re would follow, but D'Agata was able to build a 19—3—2 record with 4 knockouts before challenging for the Italian bantamweight title, on 26 Septemberbeating Gianni Zuddas by a disqualification in round nine to claim the belt.

After five more wins, he travelled to Tunisiawhere he met the future world champion Robert Cohenlosing a ten-round decision. After two more wins, he embarked on what would have been a long tour of Australia, a trip cut short after three wins when he was shot by his associate. D'Agata then returned to Italy, where he was no longer recognized as champion. On 25 Mayhe defeated Arthur Emboule by decision in eight rounds, in his first bout after the shooting. After eight more wins in a row which raised his winning streak to a total of thirteen wins in a rowhe was given a shot at the European bantamweight title by Andre Valignat on 29 October of the same year, and he defeated Valignat by a fifth round disqualification.

On 29 JuneD'Agata finally received his world title opportunity, when former conqueror Cohen gave him a chance to win the world bantamweight title in Rome. With that win, D'Agata made history as the first deaf world champion of boxing. D'Agata went to Paris to defend his title for the first time, on 1 Aprilagainst local challenger Alphonse Halimi. Special lights had been set specially for this fight, so that D'Agata, who could not hear the bell after each round, would be able to tell when each round was finished.

These lights would flash the moment the bell rang. There was a storm on the day of the fight, which was held in an open-air area. Lightning struck one of the special lights in round three, and D'Agata was struck by sparkles, suffering a burned neck and back. It was decided the fight would go on, and D'Agata tried to defy the odds for the remaining of the fight, but he lost the title by a fifteen-round decision. D'Agata never received a rematch from Halimi. He then fought on with mixed success, until 1 Augustwhen he announced his retirement.

He was able to stay away from boxing for the rest of his life. D'Agata became an example to many in his native Italy, where some boxing fans still regard him as a hero.

In addition to enduring disabilities, he also survived an attempt on his life before becoming a world champion, after being shot in the chest by a business partner in Australiaon 12 February This cost him a shot at the world bantamweight title held by Raul Macias.Marine bivalves Mytilus galloprovincialis were exposed to titanium dioxide 10 mg L -1 either as engineered nanoparticles nTiO2; fresh, or aged under simulated sunlight for 7 days or the bulk equivalent.

Despite this, transcriptional expression of metallothionein genes, histology and histochemical analysis suggested that the bulk material was more toxic. Haemocytes showed significantly enhanced DNA damage, determined by the modified comet assay, for all treatments compared to the control, but no significant differences between the treatments.

Our integrated study suggests that for this ecologically relevant organism photocatalytic ageing of nTiO2 does not significantly alter toxicity, and that bulk TiO2 may be less ecotoxicologically inert than previously assumed. Abstract Marine bivalves Mytilus galloprovincialis were exposed to titanium dioxide 10 mg L -1 either as engineered nanoparticles nTiO2; fresh, or aged under simulated sunlight for 7 days or the bulk equivalent.

Publication types Research Support, Non-U. Substances titanium dioxide Titanium.


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