324 research outputs found
Exploring metal detoxification and accumulation potential during vermicomposting of Tea factory coal ash: sequential extraction and fluorescence probe analysis
Get PDFMetal contamination from coal ashes (CAs) is widely recognized as a significant environmental concern. To learn more about metal detoxification and accumulation potential of earthworm species, metal-rich tea factory coal ashes (TFCA) were fed to Eisenia fetida and Lampito mauritii by employing a fluorescent tag detection method. Fascinatingly, on feeding fluorescence probed Zn and Cd along with cow dung to Eisenia fetida, the detection of the gut-proteins with a molecular mass higher than 100 kDa was a distinct evidence of metal binding. Significant increases were observed in the content of humified organic C [humic acid (HAC) and fulvic acid C (FAC)] and degree of humification during vermicomposting. Concurrently, considerably large amount of toxic metals (Cr, Cd, Pb, and Zn) was transformed from exchangeable to recalcitrant (organic matter and mineral bound) fractions. Moreover, total metal concentrations were reduced with high removal efficiency upon vermicomposting.The last author (KH Kim) acknowledges the support provided by the Cooperative Research Program for Agriculture Science & Technology Development (Project title: Study on model development to control odor from pig pen, Project No. PJ01052101), Rural Development Administration, Republic of Korea. This study was also supported by a grant from the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) (No. 2006-0093848). The second corresponding author (SS Bhattacharya) acknowledges the support from CSIR (Project no. 38 (1307) 14// EMR-II), India. We also thank Dr. Sandip Mukherjee, Mr. Subhendu Chatterjee, and Ms. Nazneen Hussain for their assistance in Western blotting and histological study
Emission of fine particulates and SO2 during coke making—a pilot plant study
No full textThe coal-based industries in India are considered to be one of the chief industrial emitters of the particulate matter. The composition and size distribution of particles emitted by coal combustion sources depend upon various mechanisms leading to their formation. These emissions are having primary and secondary impact on the air, water and soil quality, which is leading to an adverse effect on the environment and the living beings. The North-Eastern Region (NER) of India is endowed with a good reserve of high sulphur coals, unevenly distributed in the states of Assam, Meghalaya, Arunachal Pradesh and Nagaland. These coals have characteristics of high organic sulphur (75–90%), less oxygen, low ash, high volatile matter, mostly caking in nature with partly swelling propensities, low ash fusion temperature range, highly friable and perhydrous in nature generally with low slagging potentials. In present scenario, NER coals, particularly high sulphur caking coals of Assam and Meghalaya, are most widely used in coke-oven industries.
In the present investigation, particulate matter (SPM, PM2.5 and PM10) and SO2 were collected from a non-recovery type of experimental coke-oven having a capacity of 100 kg/batch with Nagaland coals taken as feed stock. The properties of particulate matter are then studied including its mass, particle size distribution and elemental composition. Study showed that levels of SO2, PM2.5, PM10 and suspended particulate matter were higher than that of the Ambient Air Quality Monitoring Standards. The study of these emissions using high sulphur coals will contribute to the national inventory for controlling pollutio
Alessandro Manzoni, le "grida" contro i "bravi" e le "linee guida" sugli appalti pubblici
Get PDFAbstract
The author deals with the effectiveness of the law, starting from the analysis of new sources of law, in particular the guidelines, withdrawing the case of public procurement.
Key words: Legal-positivism, guidelines, public procurement
Riassunto
L'autore affronta il tema dell'effettività del diritto, a partire dall'analisi delle nuove fonti del diritto, in particolare le line guida a partire dal caso recedente degli appalti pubblici.
Parole chiave: giuspositivismo, linee guida, appalti pubblic
Caratteri del territorio e linee di azione per scenari di futuro della Bioregione Pontina
No full textDopo aver posto in evidenza l’efficacia del concetto di bioregione al fine di interpretare l’organizzazione insediativa del territorio contemporaneo e di perseguire lo sviluppo ‘autosostenibile’ attraverso un nuovo patto città-campagna, l’articolo si sofferma sulle problematiche di delimitazione di una bioregione. Emerge la necessità di un approccio interdisciplinare che leghi gli aspetti naturali del territorio a quelli antropici in un’ottica coevolutiva e che consideri caratteri ambientali, attività economiche, organizzazioni insediative in modo integrato e lungo la loro evoluzione storica attraverso il processo di territorializzazione. In riferimento a questa impostazione metodologica si delineano le principali fasi di territorializzazione della Bioregione Pontina, dal consolidamento degli insediamenti del Latium Vetus al processo di deterritorializzazione avviato dalla bonifica integrale. Considerazioni sintetiche sullo stato attuale del territorio, pressato da un modello di sviluppo insostenibile, consentono di mettere in luce l’inadeguatezza degli strumenti di pianificazione territoriale e urbanistica vigenti e soprattutto la mancanza di scenari di futuro. La costruzione di questi scenari diventa dunque un obiettivo strategico da perseguire anche attraverso la discussione delle proposte di linee d’azione progettuale e strumenti di intervento che concludono il contributo.After reviewing the effectiveness of the bioregion concept as an instrument for interpreting the organisation of human settlements in a territory as the starting point for promoting its self-sustainable development in the context of a new pact between city and countryside, the article turns to the factors that determine the geographical boundaries of a bioregion. The author highlights the need for an interdisciplinary approach that views the territory’s natural and man-made characteristics as being ‘co-evolutionary’, incorporating its environmental factors, economic activities and settlement network in the context of an integrated analysis that also takes account of its historical process of territorialization. The author adopts this methodological approach to describe the main stages of territorialization that have characterised the Pontina Bioregion, located about 70 km south of Rome, between the consolidation of the early settlements of ancient Latium Vetus and the process of deterritorialization generated by the so-called ‘integral reclamation’ of the 1920 and 1930s. A brief description of a territory that has been adversely im-pacted by unsustainable development models brings to light both the inadequacy of the instruments available for territorial and settlement design and especially the lack of clear scenarios for the future. The development of such scenarios emerges as a strategic objective to be pursued. The article ends with a discussion of possible design proposals and tools
Entomofauna Somala. Linee programmatiche e considerazioni
No full textL'autore, dopo un breve cenno sulle specie di insetti viventi nel territorio somalo a carico delle principali colture in relazione al danno che esse provocano, riferisce sulle possibilità di lotta biologica e chimica contro gli insetti nocivi. Indica inoltre le linee programmatiche del Servizio Entomologico dell'Amministrazione, quali raccolta, preparazione e collezione degli insetti somali e studio della biologia delle specie dannose.Qoraagu, kaddib markii si kooban uga hadlay cayaanka ku nool geyiga Soomaaliyeed iyo dhibaatada u geysta dalagga beeraha, wuxuu ka hadlayaa habka loola dagaallami karo cayayaankaas. Wuxuu kaloo ka hadlayaa in daraasaad lagu sameeyo cayayaanka Soomaaliya ayuu soo jeedinayaa.The author, after a brief introduction on the species of insect in Somali territory in relation to the harm they cause to the main crops, reports on the possibilities of biological and chemical control of harmful insects. It also presents the program lines of the Italian Administration Entomological Service, such as collecting Somali insects and conductind biological studies on those harmful species.Documento messo a disposizione del Centro Studi Somali dal Prof. Remo Roncati.Prof. Remo Roncati ayaa dokumentigan ku deeqay xarunta cilmibaarista (Centro Studi Somali).Document provided to the Somali Studies Centre by Prof. Remo Roncati
Antitrust, accordi collettivi e lavoratori autonomi: le linee guida della Commissione Europea
No full textIl contributo si propone di esaminare la comunicazione della Commissione Europea del 29 settembre 2022, avente ad oggetto le linee guida sull’applicazione del diritto della concorrenza dell’Unione agli accordi collettivi concernenti le condizioni di lavoro dei lavoratori autonomi individuali. L’autrice riflette sulle novità contenute all’interno di tale
atto di soft law, rispetto alla giurisprudenza della Corte di giustizia dell’Unione Europea in materia, della quale esamina i punti principali, desumibili dalle sentenze Albany e FNV Kunsten. In particolare, si sofferma sulla nozione di lavoratori autonomi individuali, sia quelli paragonabili ai dipendenti che quelli non raffrontabili a questi ultimi, sulla ratio giustificativa dell’antitrust immunity degli accordi collettivi sottoscritti dalle loro organizzazioni rappresentative e sui riflessi che le linee guida potrebbero avere sul diritto italiano.The contribution aims to examine the European Commission’s communication of the 29th of September 2022, concerning the guidelines on the application of Union competition law to collective agreements concerning the working conditions of solo self-employed persons. The author reflects on the innovations contained within this soft law act, compared to the jurisprudence of the Court of Justice of the European Union on the matter, of which she examines the main points, deducible from the Albany and FNV Kunsten cases. In particular, she focuses on the notion of solo self-employed persons, both those comparable to employees and those not comparable to the latter, on the rationale justifying the antitrust immunity of collective agreements signed by their representative organizations and on the effects that the guidelines could have on Italian law
Le linee guida della Commissione Europea in materia di pratiche di intelligenza artificiale vietate
No full textIl saggio analizza le Linee guida adottate dalla Commissione europea il 4 febbraio 2025 in materia di pratiche di intelligenza artificiale vietate, ai sensi dell’art. 5 dell’AI Act. Dopo averne ricostruito natura giuridica, struttura e finalità, l’autore esamina criticamente alcuni esempi applicativi contenuti nel documento, rilevandone i pregi, ma anche le ambiguità definitorie e i rischi di incertezza giuridica connessi all’impostazione casistica.The paper examines the Guidelines issued by the European Commission on 4 February 2025 concerning prohibited artificial intelligence practices under Article 5 of the AI Act. After outlining their legal nature, structure, and objectives, the author critically reviews selected illustrative examples included in the document, highlighting both their strengths and the definitional ambiguities and legal uncertainty associated with the case-based approach
Roberto Gerhard’s Sound Compositions: A Historical-Philological Perspective. Archive, Process, Intent and reenactment
No full textThis research advances the current state of knowledge in the field of early tape music both empirically and methodologically. The purpose of this study is to evaluate the impact that the electronic medium exerted in the musical thinking of Roberto Gerhard, one of the most outspoken, prolific and influential composers in the Spanish diaspora whose musical legacy, for the most part unknown, is a major landmark in the early history of electroacoustic music. Gerhard’s personal tape collection, one of the largest historical archives of its kind reported in the literature, is exceptional for both its antiquity (50+-year-old tapes) and its abundance of production materials. Through the digitisation and analysis of the composer’s tape collection this research argues that the empirical study of audio documents sets out a basis for a broader understanding of textual processes. More specifically, the research demonstrates that the reconstruction of works based on magnetic tape sketches is a powerful method to advance the understanding of early tape music. This research also examines Gerhard’s sound compositions in relation to the post-war context in which they were composed. Finally, this research presents performance documentation that proposes an approach to the electroacoustic music repertoire in which creativity is not at odds with rigor and critical discernment demonstrating that archival study can be closely aligned to the concept of re-enactment
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