OALib Journal期刊

ISSN: 2333-9721



匹配条件: “Radostina Dimitrova” ,找到相关结果约154条。
The Otter (Lutra lutra L.) Signs and the Banks Tree Cover: A Survey in Central and Eastern Bulgaria
Radostina Dimitrova,Dilian Georgiev
Ecologia Balkanica , 2012,
Abstract: The study was carried out during 2011 – 2012 at different water basins (rivers and micro dams) situated in Central and Eastern Bulgaria. Transects with 600 m length were walked along the banks in otter signs search. The search was stopped when the first otter signs were registered. As a whole we found domination of the very good or excellent bank tree cover. A total of 61% of transects were with tree cover between 50% and 100%. Almost equal were the stretches without or with little tree vegetation. At all transects surveyed the spraints dominated with 61%. All other otter signs were with low percentage. The otter tracks (foot prints) were on second place with 20% of occurrence, followed by the food remains with 7%. At 12% of transects we did not find any otter signs. As a whole the otter was registered in 88% of transects, a sign for a good population. Highest preference we registered for walking or feeding of the otter at the open banks with no or with weak tree cover.
Combating complexity: the integration of EU climate and energy policies
Radostina Primova
European Integration Online Papers , 2011,
Abstract: In this article, we analyse EU energy policy from the perspective of the EU’s long-term commitments to combat climate change. We focus on the policy integration of climate concerns – ‘climate policy integration’ (CPI). We seek to answer the question: what is the extent of CPI in energy policy, and what factors can explain this level of CPI? After outlining a conceptualisation of CPI that argues for applying a principled priority standard for the assessment of the level of integration of climate policy objectives in other policy sectors, we apply an analytical framework, with factors derived from general theories of European integration and literature on environmental policy integration, to explain the strength of CPI in two sub-energy sector case studies – renewable energy policies and internal energy market policies. CPI is found to be insufficient in both cases, and two factors are highlighted as particularly crucial for furthering CPI: political commitment to CPI, and the strong participation of climate advocates in the policy process. The article suggests that the expansion of EU competence in energy policy does not necessarily provide a guarantee for full and complete CPI.
Biological Efficacy of Herbicides for Weed Control in Noncropped Areas
Tsvetanka Dimitrova
Pesticidi i Fitomedicina , 2009,
Abstract: An increasing problem facing agricultural producers is the invasion of weeds, perennial in particular, so that implementation of industrial technologies is impossible without their highly efficient and rational control. For the purpose of studying efficient herbicides for weed control in noncropped areas (stubbles), a biological study of five total systemic herbicides was conducted in areas under natural weed infestation and pressure from othersurrounding weeds at the Institute of Forage Crops in Pleven in 2005-2007. The trials were carried out in field conditions using the block method with plot size of 20 m2. Treatment was conducted at the predominant stage of budding of perennial dicotyledonous weeds and earing of monocotyledonous weeds. Herbicidal efficacy was recorded on the EWRS 9-score scale (0-100% killed weeds = score 9-1). It was found that treatment of noncropped areas (stubbles) with the total systemic herbicides Touchdown System 4 (360 g/l glyphosate); Cosmic (360 g/l glyphosate); Roundup Plus (441 g/l glyphosate potassium salt); Leon 36 SL (360 g/l glyphosate) and Glyphos Super 45 SL (450 g/l glyphosate) was highly efficient, so that it was a successful element of a strategy for controlling weeds of different biological groups, and was especially effective against perennial weeds.
Effect of Weeds and Some Methods for their Control in Seed Production Stands of Sainfoin (Onobrychis viciifolia Scop.)
Tsvetanka Dimitrova
Pesticidi i Fitomedicina , 2010,
Abstract: During the 2007-2009 period in the experimental field of the Institute of Forage Cropsa study was conducted with the purpose of investigating the effect of weeds and somemethods for their control in seed production stands of sainfoin (Onobrychis viciifolia Scop.).The trial was carried out on a slightly leached chernozem on an area with a natural backgroundof weed infestation. As a result of the study it was found:Establishment of very uniform and productive seed production stands of sainfoinrequired effective weed control concentrated mainly in the first year when the degree ofweed infestation was the highest and reached to a number of 245 plants/m2 and the freshweed biomass to 1311 g/m2.The chemical control method showed the highest efficacy had the highest efficiencywhen, in the year of stand establishment at the stage of second-fourth true leaf of sainfoin,the treatment was conducted with imazamox 40g/l (Pulsar 40) at the dose of 48 g a.i./haor with the system of Bentazon 600 g/l (Basagran 600 SL) – 900 g a.i./ha – fluazifop-P-butylg/l (Fusilad Forte) – 120 g a.i./ha. In the years of seed production in spring at the beginningof vegetation, the treatment was conducted with imazamox 40 g/l (Pulsar 40) at the doseof 20 g a.i./ha + adjuvant DESH at the dose of 1000 ml/ha.An alternative to the chemical method is to sow sainfoin under cover of spring barleyachieving more complete use of the area in the first year, a weed suppressive and ecologicaleffect, but some negative residual effect on the crop was also observed;The pure stands of sainfoin with chemical control of weeds had the highest seed productivity,exceeding the zero check by 24 to 28%, followed by the stands with spring barleyas a cover crop with an increase of 12% and the mixed stands of sainfoin with crestedwheatgrass had the lowest productivity.
Supply Chain Design of a Radio Station: Case Study in Bulgaria = Oblikovanje oskrbne verige na primeru radijske postaje: tudija primera v Bolgariji
Vesselina Dimitrova
Management , 2008,
Abstract: The paper provides a framework of characteristics of the supply chain design for the Radio Varna radio station, based on the concept for the service industry. The comparison between the radio design and logistics design reveals new features for evaluation. The principal components are JIT news information delivery, listener satisfaction and the planning of financial and journalistic control. Some priority indicators of the logistics design like costs or specification of the radio location do not have any additional influence. The basis for the supply chain system for Radio Varna indicates some points for re-designing.
Multimedia Content Analysis and Indexing for Filtering and Retrieval Applications
N. Dimitrova
Informing Science The International Journal of an Emerging Transdiscipline , 1999,
Abstract: Today s multimedia landscape depends on advances in data compression technology coupled with high-bandwidth networks and storage capacity. Given its size and nature, how can multimedia content be analyzed and indexed? This paper surveys techniques for content-based analysis, retrieval and filtering of digital images, audio and video and focuses on basic methods for extracting features that will enable indexing and search applications. [ed.]
Acanthocephalans of the nominotypical subgenus of Plagiorhynchus (Plagiorhynchidae) from charadriiform birds in the collection of the Natural History Museum, London, with a key to the species of the subgenus
Zlatka Dimitrova
ZooKeys , 2009, DOI: 10.3897/zookeys.6.94
Abstract: Specimens of three species of the nominotypical subgenus of Plagiorhynchus Lühe, 1911 (Acanthocephala, Plagiorhynchidae) are deposited in the Parasitic Worms Collection of the Natural History Museum, London. Two of these species are from birds collected in the United Kingdom: Plagiorhynchus (Plagiorhynchus) crassicollis (Villot, 1875) from Charadrius hiaticula L. and P. (P.) odhneri Lundstr m, 1942 from C. hiaticula and Haematopus ostralegus L. The third species, P. (P.) charadrii (Yamaguti, 1939), is from Charadrius alexandrinus nihonensis Deignan in the Pescadore Islands (near Taiwan). Since the morphology of the three species is poorly known, these specimens are described and figured and any variation is commented upon. A key to the species of the subgenus Plagiorhynchus is presented.
On the donors' composition and the new dating of the fresco painting of the Church of the Holy Virgin in Matei
Dimitrova Elizabeta
Zograf , 2002, DOI: 10.2298/zog0329181d
Abstract: The painted decoration of the Church of the Holy Virgin in Matei , the second largest fresco ensemble from the 14th century in the Balkans' region comprises one of the most interesting donors' compositions of the Late-Byzantine period. The figures comprised by the donors' composition are united by the conception of the Deesis scene, composed by the image of Christ in the lunette of the southern wall, the representation of the Virgin Hodegetria above the entrance to the diaconicon and the figure of John the Baptist, depicted in the southern part of the eastern wall of the naos. The broader context of the donor's composition, in addition to the images of the donors - tzarina Jelena and young king Uro , who in the presence of tzar Du an, present the model of their endowment to the patron saint, contains also the image of the patriarch Joanikije, depicted as the head of Serbian Orthodox Church. Within the donor's composition, one can see the images of Makarije, the abbot of the monastery and St. Stephan the great martyr dressed in deacon attire, represented with his traditional role as a defender of the rulers and donors from the Nemanji dynasty...
In the heavenly horizons three Christian temples in the region of Matka near Skopje
Dimitrova Elizabeta
Zograf , 2011, DOI: 10.2298/zog1135101d
Abstract: The article deals with the problem of chronological determination of three sacral edifices located in the middle, as well as in the highest cultural horizon of the region of Matka near Skopje. Due to the lack of historical sources, as well as preserved portions of the original fresco ensembles, the buildings are dated on the ground of their architectural features and according to the archeological finds discovered in their vicinity. In that regard, the church of St. Kyriake on the highest mountain post of Matka is dated in the first half of the fourteenth century, the temple of St. Archangel Michael at the site of Peter’s Rock in the late twelfth, while the church dedicated to St. Saviour, as a restoration of the later, was repeatedly built in the period between the late thirteenth and the second half of the twentieth century.
The staging of the Passion scenes: A stylistic essay six paradigms from 14th century fresco painting
Dimitrova Elizabeta
Zograf , 2006, DOI: 10.2298/zog0731115d
Abstract: The paper analyses the creative approach in the configuration of compositional schemes depicting the Passion scenes in several painted ensembles from the 14th century in terms of the stylistic nuances of their execution. Starting from the interaction of structural components of the pictures, it gives insight into the artistic qualities of the scenic arrangement of the represented motifs.

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