7 research outputs found
Corrigendum: Georgieva E, Yancheva V, Velcheva I, Becheva M, Stoyanova S. Histological alterations under metal exposure in gills of European perch (Perca fluviatilis L.) from Topolnitsa Reservoir (Bulgaria). Arch Biol Sci. 2015;67(2):729-737, https://doi.org/10.2298/ABS141020034G
No full textThe corresponding author of the article Georgieva E, Yancheva V, Velcheva I,
Becheva M, Stoyanova S. Histological alterations under metal exposure in
gills of European perch (Perca fluviatilis L.) from Topolnitsa Reservoir
(Bulgaria). Arch Biol Sci. 2015;67(2):729-737 has requested to change the
affiliations of author Maria Becheva. The affiliations of author Maria
Becheva are as follows: Maria Becheva Medical College, Medical University of
Plovdiv, Plovdiv, Bulgaria Link to the corrected article 10.2298/ABS141020034G</u
Virtual model of MAIN FRAME COMPUTER ES 1020B from Computer Museum of Mathematics and Informatics Faculty in Shumen University
No full textЛѣтопись: 13-27 August 1980: Sofia. The Second Summer Colloquium on Old Bulgarian Studies
No full textThis feature "Chronicle" reports on recent events in the field of Early Slavic, e.g., celebrations, conferences, symposia, etc. On August 13-27, 1980, the Second Summer Colloquium on Old Bulgarian Studies was held in Sofia. The papers concerned four major topics: codicology, textology, the history of literature, and linguistics. Scholars from Austria, Bulgaria, Canada, Czechoslovakia, Germany, Hungary, Israel, Italy, Japan, the Netherlands, Poland, Switzerland, and the USSR presented. The author provides a brief summary of each presentation.The conference included presentations by the following scholars: I. Codicology – Moshe Altbauer, Aksiniia Dzhurova, O. A. Kniazevskaia, N.V. Kosek, Kujo M. Kuev, S. Smiadovski, Imre H. Tóth, and Bojana Velcheva; II. Textology – Ivan Buiukliev, Ivan Dobrev, Ivan Dujchev, B. Dzhonov, Zoe Hauptová, Klimentina Ivanova, Stefan Kozhukharov, Roland W. Marti, T. Moriyasu, Georgi Popov, Jerzy Rusek, P. Šima, William R. Veder, Slavcho Vŭlchankov; III. History of Literature – Petŭr Dinekov, Emil Georgiev, Christian Hannick, Stefan Kozhukharov, Aleksander Naumow; IV. Linguistics – Moshe Altbauer, Maia Bairamova, Ekaterina Dogramadzhieva, Vladimir I. Georgiev, Ödön Horgosi, Dora Ivanova-Mircheva, Ivan Kochev, Jean-Yves Le Guillou, G. Michel, Leszek Moszyński, I.V. Platonova, Johannes M. Reinhardt, Boris Simeonov, Krassimir Stanchev, W. Stempnjakówna, Radoslav Večerka, and Kapitolina Ivanova Khodova. Two participants presented on the history of science: Rumiana Zlatanova and Przemysƚaw Zwoliński
ACCUMULATION AND MOBILE FORMS OF SOME HEAVY METALS IN ROADSIDE URBAN SOILS
No full textThe accumulation of heavy metals and toxic elements in the topsoil horizon of urban areas is a big environmental problem as they could have long-term implications not only for the soils themselves but also on the human health and well-being. Many studies have shown that there is a clear relationship between the level of urbanization, volume of traffic, intensity of anthropogenic activities and heavy metal load.
We aimed to analyze the accumulation of heavy metals at urban roadside soils and to assess the proportion of their mobile forms. The total content and mobile forms of Cu, Mn, Pb and Zn in soils samples collected along the main boulevards of Plovdiv (Bulgaria) was determined by two instrumental methods - ICP-OES and ICP-MS.
The maximal concentrations were found in the Central and Eastern administrative regions of the city of Plovdiv. This finding well correlated with the wind rose characteristics and urban gradient theory. Our results revealed that the mobile forms of Mn represented 1.38-2.21% of total content and the mobile forms of Zn represented 8.48-11.81% of total content in studied urban soils. Mobile forms of Cu and Pb varied significantly and were in the range of 7.04-14.2% and 7.3-18.67% of the total content, respectively
Integrated Monitoring with Moss-Bag and Mussel Transplants in Reservoirs
No full textFor the first time, transplants with moss-bags and mussels together were applied to study the water quality in standing water bodies. The tested species: Fontinalis antipyretica Hedw. and Sinanodonta woodiana (Lea, 1834) were collected from unpolluted sites and analyzed to obtain background levels. Then, the moss and mussels were left in cages for a period of 30 days in three reservoirs where both are not present naturally. Two of the reservoirs suffer from old industrial contamination and one is affected by untreated wastes. Twenty-four compounds were studied, among them trace elements Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Zn and organic priority substances: six polybrominated diphenyl ethers (PBDEs) congeners and short-chain chlorinated paraffins (SCCPs). The trace element accumulation was significant after the exposition period in all studied stations. PBDEs and SCCPs were also accumulated up to two times more in the moss tissues. PBDEs in the mussels exceeded the environmental quality standard (EQS). The applied combined transplants, and especially the moss-bags, revealed severe contamination with heavy metals not detected by the water samples. The moss and the mussel followed a different model of trace element and PBDEs accumulation. The SCCPs levels were alarmingly high in all plant samples. The study confirmed PBDEs and SCCPs as bioaccumulative compounds and suggested that an EQS for SCCPs in biota needs to be established
Nature-Based Solutions for the Sustainable Management of Urban Soils and Quality of Life Improvements
No full textThe rehabilitation and restoration of land-based ecosystems is a key strategy for recovering the services (goods and resources) ecosystems offer to humankind. The use of nature-based solutions (NBSs) to restore degraded soil functions and improve soil quality can be a sustainable and successful strategy to enhance their ecosystem services by working together with the forces of nature and using well-designed measures that require less maintenance, are more cost-effective, and if constructed in the right way may even be more effective over long periods because nature’s forces can increase the structural efficiency. In this study, we aimed to (i) evaluate the bioremediation capacity of some grasses and their suitability for lawn planting in settlements (in residential and non-residential areas, along roads, etc.) and (ii) propose technological solutions for their practical application in an urban environment. Emphasis was placed on the potential of some perennial grasses and their application for the bioremediation of polluted urban soils, including perennial ryegrass (Lolium perenne L.), crested wheatgrass (Agropyron cristatum L.), tall fescue (Festuca arundinacea Schreb), and bird’s foot trefoil (Lotus corniculatus L.). A case study from the city of Plovdiv (Bulgaria) is presented, together with an effective technological solution for the establishment of urban lawns and the roadside green buffer patches
Recommendations for Transitioning Young People with Primary Immunodeficiency Disorders and Autoinflammatory Diseases to Adult Care
No full text\ua9 The Author(s) 2024.Purpose: Significant improvements in the prognosis for young patients with Primary Immunodeficiency Diseases (PID) and Autoinflammatory Disorders (AID), which together make up the majority of Inborn Errors of Immunity (IEI), have resulted in the need for optimisation of transition and transfer of care to adult services. Effective transition is crucial to improve health outcomes and treatment compliance among patients. Evaluations of existing transition programmes in European health centres identified the absence of disease-specific transition guidelines for PID and AID, as a challenge to the transition process. This research aimed to establish expert consensus statements for the transition of young patients with PID and AID to adult services. Methods: This project used the Delphi method to establish mutual agreement for the proposed recommendations. A draft set of statements was developed following a literature review of existing transition programmes. Then the ERN RITA Transition Working Group convened to review the drafted recommendations and develop them into a survey. This survey was circulated among healthcare professionals to determine consensus using a five-point Likert scale, with the level of agreement set to 80% or greater. Statements that did not reach consensus were revised by the Working Group and recirculated among respondents. Results: The initial survey received 93 responses from 68 centres across 23 countries, while the following survey outlining revised recommendations received 66 responses. The respondents agreed upon recommendations detailing the structure and administration of transition programmes, collaborative working with social systems, and contraindications to transfer of care. Conclusion: This paper sets out a comprehensive set of recommendations to optimise transitional care for PID and AID
