40 research outputs found

    Epoxy–amine/metal interphases: Influences from sharp needle-like crystal formation

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    When epoxy–amine liquid mixtures are applied onto metallic oxide layer, concomitant amine chemical sorption and metallic surface dissolution appear leading to the organo-metallic complex formation. We studied the interphase formation and used two different amines as hardener (isophoronediamine (IPDA) and diethylenetriamine (DETA)). If the complex concentration within the liquid amine or epoxy–amine prepolymer is higher than its solubility limit, complexes crystallize. Sharp needle-like crystals are observed only with modified IPDA. For Al-IPDA crystals, the melting point is about 78°C, but as the network is formed at this temperature, crystals remain present at the end of the polymerization cycle

    British Colonialism and Nationalism in Uganda 1946-1960s

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    Uganda is known for having been a British protectorate for decades. The evolution of its colonial history makes it an exception in comparison with the other African colonies under British monopoly. Indeed, when the British came to the area, they could establish strong relations with the natives, in particular the powerful Bugandans, easing their establishment. However, resistance was organized and led to the outbreak of nationalism. Therefore, this paper is a tentative attempt to show how the British settled down in the area, how Ugandan nationalism rose and the extent of its success

    The Sixth International Conference 'Language, Culture, and Society in Russian/English Studies

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    Articles: Stanley, Eric. RIDDLING: a serious pursuit through the ages and in many languages; Kalmar, Tomás Mario. Then Alfred took the throne and then what? Parker’s error and Plummer’s blind spot; Kitaev, Artem and Leonid Slonimskiy. Malevich’s Grave: from figurative to non-figurative and back: A research project on the history of Kazimir Malevich’s ashes burial site in the context of the perception of historical avant-garde in Soviet and post-Soviet culture; Eliot, Simon. The History of Communication: A Case Study. The Ministry of Information 1939-46; Volodarskaya, Emma. Translation of Shakespeare’s works in Russia; Courtney, Julia. Doomed Heroes: Bulgarian patriots in late nineteenth- and early twentieth-century English translations of Turgenev’s On the Eve and I. M. Vazov’s Under the Yoke; Tchougounova-Paulson, Elena. Alexander Blok and the ‘seal of Decadence’: on the example of his article ‘Stagnation’ (1906); Foster, Graham. Russian Holiday: Anthony Burgess in Leningrad, 1961; Sepeshvari, Vera. A Musical Pun: Challenges of English-Russian Translation; Stein, Gabriele. The Author behind the Lexicographer; Ilson, Robert. Larking about among the Varieties; McGregor, Charles. Reifying vocabulary; SzymaƄski, Leszek. Selected issues in aspect-modality interaction: English modal auxiliaries and the morphological aspect of the main verb; Bailey, Janine. The St Petersburg Gospels and the Athelstan Royal Gospels: Palaeographic Purpose; Konshuh, Courtnay. Edward the Elder’s Burghal Policy and Ideology in West Saxon Overlordship of Britain; Kotake, Tadashi. ‘Non A-type’ glosses in the Cambridge Psalter (Cambridge, University Library, Ff. 1.23): A case study of double glosses; Allen, Rosamund. How Does One Pronounce a Mis-Spelling?; Mester, Annegret. The Six Swans of the Romance of the Cheuelere Assigne: sources and analogues; Matyushina, Inna. Words before blows: flyting in Old English, German, Norse and Russian tradition; Benabdi, Farouk. The School Boards and their Abolition in England: 1870-1902; Chorfi, Fatima. The Article: The Origins of the Labour Party prior to 1906

    New Mediterranean Biodiversity Records (December 2019)

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    This paper is a collection of novel distributional records of 20 species belonging to 8 phyla (Chlorophyta, Rhodophyta, Cnidaria, Ctenophora, Annelida, Mollusca, Arthropoda and Chordata) from 11 Mediterranean countries, namely, Spain: an additional record of the Canary dentex Dentex canariensis is reported from Spain (Valencia), this is the northernmost record of this species in the Mediterranean; Algeria: the first documented record of Caulerpa chemnitzia is reported from the Algerian coast; France: the first record of the Spotted sea hare Aplysia dactylomela is reported from the eastern coast of Corsica; Italy: the first records of the Lessepsian polychaete Dorvillea similis and the alien bivalve Isognomon legumen are reported from Italian waters while additional records of Mnemiopsis leidyi in the south Adriatic are provided;  Libya: the first record of an alien mollusc Crepidula fornicata is reported from Libyan waters; Malta: multiple sightings of gelatinous species Apolemia uvaria, Phacellophora camtschatica and Physophora hydrostatica are reported for the first time from Maltese waters, as well as the first tentative record of the Orange-spotted grouper Epinephelus cfr. coioides; Greece: an occurrence of a rare Bigeye thresher shark Alopias superciliosus is reported from Hellenic Ionian waters, while the first records of the alien Mertens’ prawn-goby Vanderhorstia mertensi, the recently described cyclopoid copepod Oithona davisae and the alien red seaweed Asparagopsis armata are reported from the Aegean Sea. The presence of the micromollusc Euthymella colzumensis is confirmed for Greece; Cyprus: the first record of the red cornetfish Fistularia petimba is reported from Cyprus; Turkey: the first record of the alien jellyfish Marivagia stellata is reported from south-eastern Turkey; Israel: the first records of the sea nettle Chrysaora sp. in the Levant are reported

    Investigations on the Mechanical Properties of Conducting Polymer Coating-Substrate Structures and Their Influencing Factors

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    This review covers recent advances and work on the microstructure features, mechanical properties and cracking processes of conducting polymer film/coating- substrate structures under different testing conditions. An attempt is made to characterize and quantify the relationships between mechanical properties and microstructure features. In addition, the film cracking mechanism on the micro scale and some influencing factors that play a significant role in the service of the film-substrate structure are presented. These investigations cover the conducting polymer film/coating nucleation process, microstructure-fracture characterization, translation of brittle-ductile fractures, and cracking processes near the largest inherent macromolecule defects under thermal-mechanical loadings, and were carried out using in situ scanning electron microscopy (SEM) observations, as a novel method for evaluation of interface strength and critical failure stress

    Collaborative database to track Mass Mortality Events in the Mediterranean Sea

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    Anthropogenic climate change, and global warming in particular, has strong and increasing impacts on marine ecosystems (Poloczanska et al., 2013; Halpern et al., 2015; Smale et al., 2019). The Mediterranean Sea is considered a marine biodiversity hotspot contributing to more than 7% of world\u2019s marine biodiversity including a high percentage of endemic species (Coll et al., 2010). The Mediterranean region is a climate change hotspot, where the respective impacts of warming are very pronounced and relatively well documented (Cramer et al., 2018). One of the major impacts of sea surface temperature rise in the marine coastal ecosystems is the occurrence of mass mortality events (MMEs). The first evidences of this phenomenon dated from the first half of \u201980 years affecting the Western Mediterranean and the Aegean Sea (Harmelin, 1984; Bavestrello and Boero, 1986; Gaino and Pronzato, 1989; Voultsiadou et al., 2011). The most impressive phenomenon happened in 1999 when an unprecedented large scale MME impacted populations of more than 30 species from different phyla along the French and Italian coasts (Cerrano et al., 2000; Perez et al., 2000). Following this event, several other large scale MMEs have been reported, along with numerous other minor ones, which are usually more restricted in geographic extend and/or number of affected species (Garrabou et al., 2009; Rivetti et al., 2014; Marb\ue0 et al., 2015; Rubio-Portillo et al., 2016, authors\u2019 personal observations). These events have generally been associated with strong and recurrent marine heat waves (Crisci et al., 2011; Kersting et al., 2013; Turicchia et al., 2018; Bensoussan et al., 2019) which are becoming more frequent globally (Smale et al., 2019). Both field observations and future projections using Regional Coupled Models (Adloff et al., 2015; Darmaraki et al., 2019) show the increase in Mediterranean sea surface temperature, with more frequent occurrence of extreme ocean warming events. As a result, new MMEs are expected during the coming years. To date, despite the efforts, neither updated nor comprehensive information can support scientific analysis of mortality events at a Mediterranean regional scale. Such information is vital to guide management and conservation strategies that can then inform adaptive management schemes that aim to face the impacts of climate change

    Collaborative Database to Track Mass Mortality Events in the Mediterranean Sea

    Get PDF
    Anthropogenic climate change, and global warming in particular, has strong and increasing impacts on marine ecosystems (Poloczanska et al., 2013; Halpern et al., 2015; Smale et al., 2019). The Mediterranean Sea is considered a marine biodiversity hot-spot contributing to more than 7% of world's marine biodiversity including a high percentage of endemic species (Coll et al., 2010). The Mediterranean region is a climate change hotspot, where the respective impacts of warming are very pronounced and relatively well documented (Cramer et al., 2018). One of the major impacts of sea surface temperature rise in the marine coastal ecosystems is the occurrence of mass mortality events (MMEs). The first evidences of this phenomenon dated from the first half of'80 years affecting the Western Mediterranean and the Aegean Sea (Harmelin, 1984; Bavestrello and Boero, 1986; Gaino and Pronzato, 1989; Voultsiadou et al., 2011). The most impressive phenomenon happened in 1999 when an unprecedented large scale MME impacted populations of more than 30 species from different phyla along the French and Italian coasts (Cerrano et al., 2000; Perez et al., 2000). Following this event, several other large scale MMEs have been reported, along with numerous other minor ones, which are usually more restricted in geographic extend and/or number of affected species (Garrabou et al., 2009; Rivetti et al., 2014; MarbĂ  et al., 2015; Rubio-Portillo et al., 2016, authors' personal observations). These events have generally been associated with strong and recurrent marine heat waves (Crisci et al., 2011; Kersting et al., 2013; Turicchia et al., 2018; Bensoussan et al., 2019) which are becoming more frequent globally (Smale et al., 2019). Both field observations and future projections using Regional Coupled Models (Adloff et al., 2015; Darmaraki et al., 2019) show the increase in Mediterranean sea surface temperature, with more frequent occurrence of extreme ocean warming events. As a result, new MMEs are expected during the coming years. To date, despite the efforts, neither updated nor comprehensive information can support scientific analysis of mortality events at a Mediterranean regional scale. Such information is vital to guide management and conservation strategies that can then inform adaptive management schemes that aim to face the impacts of climate change.MV-L was supported by a postdoctoral contract Juan de la Cierva-IncorporaciĂłn (IJCI-2016-29329) of Ministerio de Ciencia, InnovaciĂłn y Universidades. AI was supported by a Technical staff contract (PTA2015-10829-I) Ayudas Personal TĂ©cnico de Apoyo of Ministerio de EconomĂ­a y Competitividad (2015). Interreg Med Programme (grant number Project MPA-Adapt 1MED15_3.2_M2_337) 85% cofunded by the European Regional Development Fund, the MIMOSA project funded by the Foundation Prince Albert II Monaco and the European Union's Horizon 2020 research and innovation programme under grant agreement no 689518 (MERCES). DG-G was supported by an FPU grant (FPU15/05457) from the Spanish Ministry of Education. J-BL was partially supported by the Strategic Funding UID/Multi/04423/2013 through national funds provided by FCT - Foundation for Science and Technology and European Regional Development Fund (ERDF), in the framework of the programme PT2020

    Durability of nanosized oxygen-barrier coatings on polymers

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