Search results for: N. Kaneva

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Kaneva</title> <meta name="description" content="Search results for: N. Kaneva"> <meta name="keywords" content="N. Kaneva"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="N. 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Kaneva"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 3</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: N. Kaneva</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Effect of Precursors Aging Time on the Photocatalytic Activity of Zno Thin Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Kaneva">N. Kaneva</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Bojinova"> A. Bojinova</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Papazova"> K. Papazova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thin ZnO films are deposited on glass substrates via sol鈥揼el method and dip-coating. The films are prepared from zinc acetate dehydrate as a starting reagent. After that the as-prepared ZnO sol is aged for different periods (0, 1, 3, 5, 10, 15, and 30 days). Nanocrystalline thin films are deposited from various sols. The effect ZnO sols aging time on the structural and photocatalytic properties of the films is studied. The films surface is studied by Scanning Electron Microscopy. The effect of the aging time of the starting solution is studied inrespect to photocatalytic degradation of Reactive Black 5 (RB5) by UV-vis spectroscopy. The experiments are conducted upon UV-light illumination and in complete darkness. The variation of the absorption spectra shows the degradation of RB5 dissolved in water, as a result of the reaction acurring on the surface of the films, and promoted by UV irradiation. The initial concentrations of dye (5, 10 and 20 ppm) and the effect of the aging time are varied during the experiments. The results show, that the increasing aging time of starting solution with respect to ZnO generally promotes photocatalytic activity. The thin films obtained from ZnO sol, which is aged 30 days have best photocatalytic degradation of the dye (97,22%) in comparison with the freshly prepared ones (65,92%). The samples and photocatalytic experimental results are reproducible. Nevertheless, all films exhibit a substantial activity in both UV light and darkness, which is promising for the development of new ZnO photocatalysts by sol-gel method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ZnO%20thin%20films" title="ZnO thin films">ZnO thin films</a>, <a href="https://publications.waset.org/abstracts/search?q=sol-gel" title=" sol-gel"> sol-gel</a>, <a href="https://publications.waset.org/abstracts/search?q=photocatalysis" title=" photocatalysis"> photocatalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=aging%20time" title=" aging time"> aging time</a> </p> <a href="https://publications.waset.org/abstracts/20227/effect-of-precursors-aging-time-on-the-photocatalytic-activity-of-zno-thin-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20227.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">382</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Study on the Presence of Protozoal Coinfections among Patients with Pneumocystis jirovecii Pneumonia in Bulgaria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nina%20Tsvetkova">Nina Tsvetkova</a>, <a href="https://publications.waset.org/abstracts/search?q=Rumen%20Harizanov"> Rumen Harizanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandra%20Ivanova"> Aleksandra Ivanova</a>, <a href="https://publications.waset.org/abstracts/search?q=Iskra%20Rainova"> Iskra Rainova</a>, <a href="https://publications.waset.org/abstracts/search?q=Nina%20Yancheva-Petrova"> Nina Yancheva-Petrova</a>, <a href="https://publications.waset.org/abstracts/search?q=Dimitar%20Strashimirov"> Dimitar Strashimirov</a>, <a href="https://publications.waset.org/abstracts/search?q=Raina%20Enikova"> Raina Enikova</a>, <a href="https://publications.waset.org/abstracts/search?q=Mihaela%20Videnova"> Mihaela Videnova</a>, <a href="https://publications.waset.org/abstracts/search?q=Eleonora%20Kaneva"> Eleonora Kaneva</a>, <a href="https://publications.waset.org/abstracts/search?q=Iskren%20Kaftandjiev"> Iskren Kaftandjiev</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktoria%20Levterova"> Viktoria Levterova</a>, <a href="https://publications.waset.org/abstracts/search?q=Ivan%20Simeonovski"> Ivan Simeonovski</a>, <a href="https://publications.waset.org/abstracts/search?q=Nikolay%20Yanev"> Nikolay Yanev</a>, <a href="https://publications.waset.org/abstracts/search?q=Georgi%20Hinkov"> Georgi Hinkov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Pneumocystis jirovecii (P. jirovecii) and protozoan of the genera Acanthamoeba, Cryptosporidium, and Toxoplasma gondii are opportunistic pathogens that can cause life-threatening infections in immunocompromised patients. Aim of the study was to evaluate the coinfection rate with opportunistic protozoal agents among Bulgarian patients diagnosed with P. jirovecii pneumonia. Thirty-eight pulmonary samples were collected from 38 patients (28 HIV-infected) with P. jirovecii infection. P. jirovecii DNA was detected by real-time PCR targeting the large mitochondrial subunit ribosomal RNA gene. Acanthamoeba was determined by genus-specific conventional PCR assay. Real-time PCR for the detection of a Toxoplasma gondii and Cryptosporidium DNA fragment was used. Pneumocystis DNA was detected in all 38 specimens; 28 (73.7%) were from HIV-infected patients. Three (10,7%) of them were co-infected with T. gondii and 1 (3.6%) with Cryptosporidium. In the group of non-HIV-infected (n=10), Cryptosporidium DNA was detected in an infant (10%). Acanthamoeba DNA was not found in the tested samples. The current study showed a relatively low rate of coinfections of Cryptosporidium spp./T. gondii and P. jirovecii in the Bulgarian patients studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coinfection" title="coinfection">coinfection</a>, <a href="https://publications.waset.org/abstracts/search?q=opportunistic%20protozoal%20agents" title=" opportunistic protozoal agents"> opportunistic protozoal agents</a>, <a href="https://publications.waset.org/abstracts/search?q=Pneumocystis%20jirovecii" title=" Pneumocystis jirovecii"> Pneumocystis jirovecii</a>, <a href="https://publications.waset.org/abstracts/search?q=pulmonary%20infections" title=" pulmonary infections"> pulmonary infections</a> </p> <a href="https://publications.waset.org/abstracts/151450/study-on-the-presence-of-protozoal-coinfections-among-patients-with-pneumocystis-jirovecii-pneumonia-in-bulgaria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151450.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">154</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Biopolitical Border Imagery during the European Migrant Crisis: A Comparative Discourse Analysis between Mediterranean Europe and the Balkans </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mira%20Kaneva">Mira Kaneva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The ongoing migration crisis polemic opens up the debate to the ambivalent essence of borders due to both the legality and legitimacy of the displacement of vast masses of people across the European continent. In neoliberal terms, migration is seen as an economic opportunity, or, on the opposite, as a social disparity; in realist terms, it is regarded as a security threat that calls for mobilization; from a critical standpoint, it is a matter of discourse on democratic governance. This paper sets the objective of analyzing borders through the Foucauldian prism of biopolitics. It aims at defining the specifics of the management of the human body by producing both the irregular migrant as a subject (but prevalently as an object in the discourse) and the political subjectivity by exercising state power in repressive practices, including hate speech. The study relies on the conceptual framework of Bigo, Agamben, Huysmans, among others, and applies the methodology of qualitative comparative analysis between the cases of borders (fences, enclaves, camps and other forms of abnormal spatiality) in Italy, Spain, Greece, the Republic of Macedonia, Serbia and Bulgaria. The paper thus tries to throw light on these cross- and intra-regional contexts that share certain similarities and differences. It tries to argue that the governmentality of the masses of refugees and economic immigrants through the speech acts of their exclusion leads to a temporary populist backlash; a tentative finding is that the status-quo in terms of social and economic measures remains relatively balanced, whereas, values such as freedom, openness, and tolerance are consecutively marginalized. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Balkans" title="Balkans">Balkans</a>, <a href="https://publications.waset.org/abstracts/search?q=biopolitical%20borders" title=" biopolitical borders"> biopolitical borders</a>, <a href="https://publications.waset.org/abstracts/search?q=cross-%20and%20intra-regional%20discourse%20analysis" title=" cross- and intra-regional discourse analysis"> cross- and intra-regional discourse analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=irregular%20migration" title=" irregular migration"> irregular migration</a>, <a href="https://publications.waset.org/abstracts/search?q=Mediterranean%20Europe" title=" Mediterranean Europe"> Mediterranean Europe</a>, <a href="https://publications.waset.org/abstracts/search?q=securitization%20vs.%20humanitarianism" title=" securitization vs. humanitarianism"> securitization vs. humanitarianism</a> </p> <a href="https://publications.waset.org/abstracts/77811/biopolitical-border-imagery-during-the-european-migrant-crisis-a-comparative-discourse-analysis-between-mediterranean-europe-and-the-balkans" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77811.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">214</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div 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Search results for: N. Kaneva