Search results for "romi"
showing 10 items of 2291 documents
Identification of mixed bromidochloridotellurate anions in disordered crystal structures of (bdmim)2[TeX2Y4] (X, Y = Br, Cl; bdmim = 1-butyl-2,3-dime…
2014
The discrete mixed [TeBrxCl6−x]2− anions in their disordered crystal structures have been identified by using the phases prepared by the reaction of 1-butyl-2,3-dimethylimidazolium halogenides (bdmim)X with tellurium tetrahalogenides TeX4 (X = Cl, Br) as examples. Homoleptic (bdmim)2[TeX6] [X = Cl (1), Br (2)] and mixed (bdmim)2[TeBr2Cl4] (3), and (bdmim)2[TeBr4Cl2] (4) are formed depending on the choice of the reagents, and their crystal structures have been determined by single-crystal X-ray diffraction. The coordination environments of tellurium in all hexahalogenidotellurates are almost octahedral. Because of the crystallographic disorder, the mixed [TeBr2Cl4]2− and [TeBr4Cl2]2− anions …
Kromin liuottaminen ferrokromikuonasta ultraääniavusteisesti peroksidipohjaisten reagenssien avulla
2016
Tässä Pro gradu -tutkielmassa käytiin läpi erilaisissa metallurgisissa prosesseissa syntyneiden kuonien koostumusta sekä niiden mahdollista jatkokäyttöä. Prosesseissa syntyvien kuonien koostumuksen todettiin riippuvan käytetystä prosessista ja että joissain prosesseissa syntyvät kuonat voivat olla ympäristölle haitallisia, kun taas vastaavasti joitain kuonia voidaan käyttää esimerkiksi betonin täyteaineena. Metallurgisissa prosesseissa syntyneille kuonille olisi tärkeää keksiä jatkokäyttökohteita, sillä ne vievät runsaasti tilaa sekä aiheuttavat mahdollisia ympäristöhaittoja. Lisäksi kuonien jatkokäytöstä voitaisiin hyötyä taloudellisesti. Kokeellisessa osassa selvitettiin ferrokromin tuota…
Association of Arthroscopically-Assisted Latissimus Dorsi Tendon Transfer with Implantation of a Subacromial Balloon Spacer for Patients with Irrepar…
2022
Purpose. Massive irreparable posterosuperior rotator cuff tears in an active population, resulting in a pseudo-paralytic shoulder, pose a challenge for the orthopaedic surgeon. In an effort to avoid or delay arthroplasty surgery, other surgical strategies such as arthroscopically-assisted latissimus dorsi transfer (aLDT) or the implantation of a subacromial spacer (SAS) can be considered. The aim of the present study is to associate, for the first time, these two surgical procedures in order to demonstrate the surgical feasibility and the effectiveness of their synergistic biomechanical effect. Methods. The study group consisted of patients who underwent aLDT for a massive irreparable poste…
Architetture all'ombra del vulcano: il comprensorio etneo in età moderna. Architecture in the Shadow of the Volcano: the Etna Region in the Early Mod…
2017
Tra le molteplici declinazioni che investono il rapporto architettura natura un caso particolarmente pregnante è quello dei contesti vulcanici, tanto per le implicazioni che riguardano la ricerca estetica e gli aspetti visivi, quanto la costruzione e la composizione materica degli edifici realizzati in tali contesti. La fascinazione suscitata dalle eruzioni vulcaniche attraverso i secoli ha certamente contribuito alla persistenza di miti e alla formazione di un immaginario collettivo, fino alla costruzione di identità locali radicate in territori fortemente caratterizzati, con significativi riflessi anche nella sfera architettonica. Per altro verso, la disponibilità di un’ampia gamma di mat…
Screening of halogenated aromatic compounds in some raw material lots for an aluminium recycling plant
2004
Four samples of scrap raw materials for an aluminium recycling plant were screened for the occurrence of persistent halogenated aromatic compounds. The samples contained waste from handling of electric and electronic plastics, filter dust from electronic crusher, cyclone dust from electronic crusher and light fluff from car shredder. In our screening analyses, brominated flame retardants were observed in all samples. Polybrominated diphenyl ethers (PBDE) were identified in all samples in amounts of 245–67450 ng/g. The major PBDE congeners found were decabromo- and pentabromodiphenyl ethers. 1,1-bis(2,4,6-tribromophenoxy)ethane, hexabromobenzene, ethyl-pentabromobenzene, tetrabromobisphenol-…
Use of metallurgical dust for removal chromium ions from aqueous solutions
2018
The aim of the study was to determine the potential for the application of dust from steel plant as an effective sorbent for removing Cr(III) and Cr(VI) in the form of simple and complex ions – Acid Blue 193 dye from aqueous solutions. Three isotherms models were used to interpret the experimental results namely: Langmuir, Freundlich, and Dubinin–Radushkevich. Estimated equations parameters allowed to determine the binding mechanism. Based on laboratory studies it was found that the dust was characterized by high sorption capacities for Cr ions and dye from the aqueous solution. The sorption capacity of the dust for Cr(III) and Cr(VI) ions depended on the degree of oxidation, pH of solution…
The Ability of Water Hyacinth (Eichhornia crasipes Mart.) and Water Lettuce (Pistia stratiotes Linn.) for Reducing Pollutants in Batik Wastewater
2021
Batik produced by craftsmen is categorized as a small and medium industry. The problem of Batik production is less attention to the environment because the craftsmen lived in the middle of a residential area that has inexperience. One of less attention to the environment is no treatment of wastewater that reaches up to 95 % (61.9 L each cloth). Thus it polluted the river. This research aimed to treat the wastewater of Batik production by using phytoremediation. In this study, phytoremediation was carried out in three tanks in series using Eichhornia crassipes and Pistia stratiotes which are abundant in Indonesia. The treated wastewater was evaluated for its ammonia and chromium (Cr). The re…
Tiotropium in asthma: Back to the future of anticholinergic treatment
2017
Abstract Asthma is among the most common chronic diseases worldwide; however, despite progresses in the understanding of the patho-physiological mechanisms and advances in the development of new therapeutic options and strategies, the disease remains uncontrolled in a not trivial proportion of subjects. Thus, the need of new molecules to treat the underlying biological and functional abnormalities and to control symptoms is strongly advocated by clinicians. In this scenario, the most recent GINA guidelines have included the use of tiotropium bromide in the most severe and uncontrolled forms of the disease, in addition to treatment with inhaled corticosteroid plus long acting beta adrenergic…
Apuntes sobre el 'teatro civile'. Entrevista a Daniele Biacchessi
2016
Unas pocas líneas no bastan para presentar la figura del periodista, escritor y dramaturgo Daniele Biacchessi. Su amplia labor como periodista en algunos de los medios de difusión más relevantes de Italia y su constante producción como divulgador y creador del llamado teatro civil hacen de él una figura que no puede dejarse de lado a la hora de hablar del teatro de inspiración cívica de la última década. Interesado en denunciar desde desastres medioambientales como en La fabbrica dei profumi o las matanzas nazis en Sant'Anna di Stazzema y Marzabotto a finales de la Segunda Guerra Mundial, basta dar un vistazo a algunos de sus títulos para tener una idea de la amplitud de temas tratados por…
Ascanio Celestini, voces amargas de los márgenes del mundo
2016
Espectáculos como Radio clandestina (2000), sobre el magnicidio nazi en las Fosas Ardeatinas durante la Segunda Guerra Mundial, Cecafumo (2002), un curioso montaje a partir de fábulas populares italianas, Fabbrica (2002), una reflexión sobre las condiciones de los trabajadores en el último siglo, Scemo di guerra. 4 giugno 1944 o La pecora nera. Elogio funebre del manicomio elettrico (2005), sobre las instituciones psiquiátricas en los tiempos actuales, bastan para situar la dramaturgia de Ascanio Celestini (Roma, 1972) como una de las referencias imprescindibles en el último teatro italiano. En el presente texto, el profesor y crítico Andrea Porcheddu, gran conocedor de la obra de Celestini…