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1. Agriculture export variety and the short and long run impact on agriculture export

Author:
Tudorel Andrei; Bogdan Oancea; Andreea Mirică
Source:
Zemědělská ekonomika v.68 no.4 pp. 137-145
ISSN:
0139-570X
Subject:
Bulgaria,   etc   ; entropy; exports; Romania;     Show all 4 Subjects
Abstract:
... In this paper, we investigated the extent to which the accession to the EU has had an effect on increasing the variety of exports of agri-food categories for two Eastern European countries, namely Romania and Bulgaria. We also assessed the impact of changes in the variety of exports of agri-food categories on the dynamics of the volume of exports of agri-food products for these two countries and u ...
DOI:
10.17221/37/2022-agricecon

2. Study on the temperament of cows of the Aberdeen Angus cattle breed

Author:
Svetoslav Karamfilov
Source:
Czech Journal of Animal Science v.67 no.1 pp. 8-14
ISSN:
1212-1819
Subject:
Bulgaria,   etc   ; Angus; people; temperament;     Show all 4 Subjects
Abstract:
... The present study examined the temperament of 699 cows of the Aberdeen Angus cattle breed, reared in 14 farms in Bulgaria. It was carried out within the period 2017–2020. The animals subject to the study were between two and eight years old. The temperament was visually evaluated following a scoring system from 1 to 5. The assessment method involved the behavioural reaction of the cows upon manipu ...
DOI:
10.17221/88/2021-cjas

3. Analysis of the Origin and Dissemination of HIV-1 Subtype C in Bulgaria

Author:
Ivailo Alexiev; Carla Mavian; Taylor Paisie; Massimo Ciccozzi; Reneta Dimitrova; Anna Gancheva; Asya Kostadinova; Carole Seguin-Devaux; Marco Salemi
Source:
Viruses 2022 v.14 no.2 pp. -
ISSN:
1999-4915
Subject:
Bulgaria,   etc   ; Bayesian theory; phylogeny; phylogeography;     Show all 4 Subjects
Abstract:
... HIV-1 subtype C is the most abundant strain of HIV-1 infections worldwide and was found in the first known patients diagnosed with HIV/AIDS in Bulgaria in 1986. However, there is limited information on the molecular-epidemiological characteristics of this strain in the epidemic of the country. In this study, we analyze the evolutionary history of the introduction and dissemination of HIV-1 subtype ...
DOI:
10.3390/v14020263

4. Petrographic and geochemical analyses of flint raw materials from Bulgaria: A reliable combination for provenance studies of archaeological flint

Author:
Maria Gurova; Polina Andreeva; Elitsa Stefanova; Andrey Aladzhov; Clive Bonsall
Source:
Quaternary international 2022 v.615 pp. 18-32
ISSN:
1040-6182
Subject:
Bulgaria,   etc   ; archaeology; provenance; raw materials; surveys;     Show all 5 Subjects
Abstract:
... The Bulgarian prehistoric sequence is characterized by the use of particular raw materials in distinct ‘cultural’ contexts. The Karanovo I and II stages of the Early Neolithic (part of a supra-regional technocomplex in the Balkans) are recognisable by formal toolkits made of Balkan flint. The Chalcolithic period is famous for its superblades made of high-quality Ludogorie flint, which also attain ...
DOI:
10.1016/j.quaint.2021.03.023

5. DNA Barcoding Study of Representative Thymus Species in Bulgaria

Author:
Ina Aneva; Petar Zhelev; Georgi Bonchev; Irina Boycheva; Stiliana Simeonova; Denitsa Kancheva
Source:
Plants 2022 v.11 no.3 pp. -
ISSN:
2223-7747
Subject:
Bulgaria,   etc   ; DNA barcoding; indigenous species; phylogeny; taxonomy;     Show all 5 Subjects
Abstract:
... We present a study on the taxonomy of eleven Thymus species, belonging to two sections and occurring naturally in Bulgaria. Four DNA barcoding markers—matK, rbcL, trnH-psbA and ITS—were applied to discriminate the species and to reveal their phylogenetic relationships. The results showed that rbcL has the lowest discriminating power regarding the studied species, while the other markers yielded re ...
DOI:
10.3390/plants11030270

6. First dendrochronological studies of Quercus protoroburoides

Author:
Evgeni Tsavkov; Nickolay Tsvetanov; Velislava Shishkova; Momchil Panayotov
Source:
Dendrochronologia 2022 v.75 pp. 125984
ISSN:
1125-7865
Subject:
Bulgaria,   etc   ; Quercus petraea; cold; dendrochronology; frost; summer;     Show all 6 Subjects
Abstract:
... Quercus protoroburoides Donchev and Bouzov ex Tashev and Tsavkov (Rila oak) is a species with extremely limited and localized distribution. It is found only on several locations on slopes above Rila Monastery in Rila Mountains (Bulgaria) at elevations between 1500 m and 1750 m a.s.l. The trees are in small groups or scattered, usually situated on ridges slightly higher than the local population of ...
DOI:
10.1016/j.dendro.2022.125984

7. Market tools for the provision of urban green spaces in post-socialist Sofia

Author:
Aleksandar D. Slaev; Ernest R. Alexander; Zdravko Zdravkov; Valeri Ivanov; Snezhina Georgieva
Source:
Land use policy 2022 pp. 106377
ISSN:
0264-8377
Subject:
Bulgaria,   etc   ; capital; ecosystems; land policy; markets; urban development;     Show all 6 Subjects
Abstract:
... This study focuses on the provision of urban green spaces (UGS) as suppliers of ecosystem services (ES). Its main goal is to study how, in market-driven urban development with scarce resources, sufficient public UGS can be provided to meet the needs of the local community. The principal issue is that many ecosystem services cannot be provided solely through the market mechanism and therefore remai ...
DOI:
10.1016/j.landusepol.2022.106377

8. Crocus pallidus (Iridaceae)—A Neglected Species for the Bulgarian Flora and Critical Taxon in the Balkans

Author:
Tsvetanka Raycheva; Kiril Stoyanov; Samir Naimov; Elena Apostolova-Kuzova; Yulian Marinov
Source:
Plants 2022 v.11 no.5 pp. -
ISSN:
2223-7747
Subject:
Bulgaria,   etc   ; coasts; flora; indigenous species; phylogeny; uncertainty; Black Sea;     Show all 7 Subjects
Abstract:
... For a long time, the Balkan endemic species Crocus pallidus has been unconfirmed and neglected for the flora of Bulgaria. It has remained an uncertain species from the Balkans, often listed as a synonym of C. weldenii. The morphological resemblance to the albinistic forms of C. chrysanthus has led to incorrect identification in the past, resulting in uncertainty regarding the distribution of this ...
DOI:
10.3390/plants11050686

9. SARS-like Coronaviruses in Horseshoe Bats (Rhinolophus spp.) in Russia, 2020

Author:
Sergey Alkhovsky; Sergey Lenshin; Alexey Romashin; Tatyana Vishnevskaya; Oleg Vyshemirsky; Yulia Bulycheva; Dmitry Lvov; Asya Gitelman
Source:
Viruses 2022 v.14 no.1 pp. -
ISSN:
1999-4915
Subject:
Bulgaria,   etc   ; Orthocoronavirinae; Russia; feces; genetic variation; phylogeny; viruses; Kenya;     Show all 8 Subjects
Abstract:
... We found and genetically described two novel SARS-like coronaviruses in feces and oral swabs of the greater (R. ferrumequinum) and the lesser (R. hipposideros) horseshoe bats in southern regions of Russia. The viruses, named Khosta-1 and Khosta-2, together with related viruses from Bulgaria and Kenya, form a separate phylogenetic lineage. We found evidence of recombination events in the evolutiona ...
DOI:
10.3390/v14010113

10. A review of the cavernicolous Trichopolydesmidae (Diplopoda, Polydesmida) from the Carpathian-Balkan arch and the Rhodope Mountains, with descriptions of two new genera and three new species

Author:
Dragan Antić; Boyan Vagalinski; Pavel Stoev; Nesrine Akkari
Source:
ZooKeys 2022 v.1097 pp. 1-46
ISSN:
1313-2970
Subject:
Bulgaria,   etc   ; Polydesmida; lectotypes; museums; new species; taxonomic keys; Serbia;     Show all 7 Subjects
Abstract:
... AbstractAll cavernicolous species of the millipede family Trichopolydesmidae from the Carpathian-Balkan arch and the Rhodope Mountains have been reviewed. At present the family has been shown to comprise five or six genera with eight or nine species. Two new genera have been described, viz., Balkanodesminus gen. nov., with two new species: B. dentatoides sp. nov. and B. serbicus sp. nov., from Bu ...
DOI:
10.3897/zookeys.1097.83916

11. Diversification of Agricultural Output Intensity across the European Union in Light of the Assumptions of Sustainable Development

Author:
Aneta Zakrzewska; Anna Nowak
Source:
Agriculture (Basel) 2022 v.12 no.9 pp. -
ISSN:
2077-0472
Subject:
Bulgaria,   etc   ; European Union; agriculture; land productivity; sustainable development; Malta; Netherlands;     Show all 7 Subjects
Abstract:
... The strength of the bond between agriculture and the natural environment is measured by output intensity. This work aimed to evaluate the diversity of agriculture across the European Union in terms of agricultural output intensity from the perspective of the assumptions of the concept of sustainable development. Surveys were conducted using selected indicators based on data derived from EUROSTAT, ...
DOI:
10.3390/agriculture12091370

12. Identification of 11 microsatellites markers in Bulgarian Rhodope cattle breed

Author:
Denis Viryanski; Milena Bozhilova-Sakova; Atanaska Teneva; Elena Todorovska; Ivona Dimitrova; Krasimir Georgiev
Source:
Journal of BioScience and Biotechnology 2022 v.11 no.1 pp. 57-62
ISSN:
1314-6246
Subject:
Bulgaria,   etc   ; alleles; biotechnology; cattle; gene frequency; genetic variation; heterozygosity; loci; microsatellite repeats;     Show all 9 Subjects
Abstract:
... The purpose of present work was to study the genetic variation in 135 animals from Bulgarian Rhodope cattle breed raised in the region of Smolyan, Bulgaria. For the purpose of the experiment was used a panel of 11 microsatellite markers. A total of 113 alleles were identified and 5 of them were population-specific. The allele number per locus varied from 7 (for SPS115) to 13 (for TGLA 227, TGLA 53 ...

13. Multi-level hegemony in transboundary Flood Risk Management: A downstream perspective on the Maritsa Basin

Author:
Anusha Sanjeev Mehta; Jeroen F. Warner
Source:
Environmental science & policy 2022 v.129 pp. 126-136
ISSN:
1462-9011
Subject:
Bulgaria,   etc   ; basins; environmental science; issues and policy; politics; prioritization; risk management; Greece;     Show all 8 Subjects
Abstract:
... While the literature takes a neutral to optimistic view of cooperation between the riparian countries Bulgaria, Turkey and Greece on Flood Risk Management (FRM), floods in the Maritsa Basin have been increasing over the last decade. Considering the inherently political nature of transboundary rivers, this article investigates the role of power in FRM in the Maritsa Basin using an adapted hydro-heg ...
DOI:
10.1016/j.envsci.2021.12.014

14. Stable isotope data of Neolithic and Eneolithic populations in the Balkans, 6600 to 4000 BC

Author:
Aurélien Tafani; Cătălin Lazăr; Robert H. Tykot
Source:
Data in Brief 2022 v.42 pp. 108114
ISSN:
2352-3409
Subject:
Bulgaria,   etc   ; carbon radioisotopes; collagen; diet; humans; nitrogen; stable isotopes; tooth enamel; Romania;     Show all 9 Subjects
Abstract:
... Stable isotopic ratios of carbon and nitrogen performed on collagen and tooth enamel offer invaluable insight into the diet of ancient populations. In the northern Balkans, most of these isotopic data have been collected as auxiliary information of radiocarbon dates, to correct a potential marine reservoir effect. In order to facilitate the access of the academic community to these data, we presen ...
DOI:
10.1016/j.dib.2022.108114

15. Genetic Diversity and Structure of the Main Danubian Horse Paternal Genealogical Lineages Based on Microsatellite Genotyping

Author:
Georgi Yordanov; Ivan Mehandjyiski; Nadezhda Palova; Nedyalka Atsenova; Boyko Neov; Georgi Radoslavov; Peter Hristov
Source:
Veterinary sciences 2022 v.9 no.7 pp. -
ISSN:
2306-7381
Subject:
Bulgaria,   etc   ; Torpedo; allelic variation; genetic structure; genotyping; heterozygosity; horses; loci; microsatellite repeats; sires;     Show all 10 Subjects
Abstract:
... The Danubian horse, together with the Pleven and the Eastern Bulgarian horse breeds, is one of the modern breeds in Bulgaria. The objective of this study was to compare the genetic structure and genetic diversity of six paternal genealogical lineages of the Danubian horse breed (Zdravko, NONIUS XVII-30, Torpedo, Lider, Kalifa, and Hrabar). In total, 166 individuals from the six genealogical lines ...
DOI:
10.3390/vetsci9070333

16. Unemployment persistence in Europe: evidence from the 27 EU countries

Author:
Guglielmo Maria Caporale; Luis A. Gil-Alana; Pablo Vicente Trejo
Source:
Heliyon 2022 v.8 no.2 pp. e08898
ISSN:
2405-8440
Subject:
Bulgaria,   etc   ; COVID-19 infection; hysteresis; unemployment; Belgium; Croatia; France; Italy; Luxembourg; Malta; Romania;     Show all 11 Subjects
Abstract:
... This paper investigates unemployment persistence in the 27 EU member states by applying fractional integration methods to quarterly data (both seasonally adjusted and unadjusted) from 2000q1 to 2020q4. The obtained evidence points to high levels of persistence in all cases. With seasonally adjusted data, a small degree of mean reversion is found in the case of Belgium, Luxembourg and Malta, but th ...
DOI:
10.1016/j.heliyon.2022.e08898

17. Unexpected Previously Unknown Diversity of the Genus Microphor Macquart (Diptera: Dolichopodidae: Microphorinae) in the West Palaearctic

Author:
Miroslav Barták; Štěpán Kubík
Source:
Insects 2022 v.13 no.8 pp. -
ISSN:
2075-4450
Subject:
Bulgaria,   etc   ; Dolichopodidae; Palearctic region; genitalia; neotypes; new species; France; Italy; Portugal; Spain; Switzerland;     Show all 11 Subjects
Abstract:
... Microphor baechlii sp. nov. (Switzerland, Turkey), M. chvalai sp. nov. (France), M. nevadensis sp. nov. (Spain), M. pallipes sp. nov. (Italy), and M. turcicus sp. nov. (Turkey) are described and illustrated. The neotype of M. anomalus (Meigen, 1824) is designated. Males of all known Palaearctic species of Microphor are keyed, genitalia are illustrated for new species and species previously inadequ ...
DOI:
10.3390/insects13080700

18. Comparative determination of antimicrobial activity of the Balkan endemic species Stachys thracica Davidov during the process of ex situ conservation

Author:
Desislava Mantovska; Detelina Petrova; Lybomira Yocheva; Zhenya Yordanova
Source:
BioRisk 2022 v.17 pp. 357-365
ISSN:
1313-2652
Subject:
Bulgaria,   etc   ; Acinetobacter calcoaceticus; Stachys; antimicrobial properties; chemical composition; ex situ conservation; indigenous species;     Show all 7 Subjects
Abstract:
... AbstractStachys thracica Davidov – Thracian woundwort is a Balkan endemic plant included in The Red Data Book of Bulgaria with conservational status “rare”. The plants from genus Stachys have a long history of use to treat various diseases, inflammatory conditions, coughs, ulcers, genital tumors, and infected wounds. Due to its limited distribution the information on the biological activity and c ...
DOI:
10.3897/biorisk.17.77484

19. Correlation between bacterial abundance, soil properties and heavy metal contamination in the area of non-ferrous metal processing plant, Southern Bulgaria

Author:
Radina Nikolova; Michaella Petkova; Nikolai Dinev; Anelia Kenarova; Silvena Boteva; Dimitar Berov; Galina Radeva
Source:
BioRisk 2022 v.17 pp. 19-30
ISSN:
1313-2652
Subject:
Bulgaria,   etc   ; genes; heavy metals; polluted soils; soil pH; soil texture; total organic carbon;     Show all 7 Subjects
Abstract:
... AbstractIn the present study, the correlation between bacterial abundance and soil physicochemical properties along the heavy metal contamination gradient in the area of non-ferrous metal processing plant was assessed. Our results showed that bacterial abundance (number of heterotrophic bacteria and number of 16S rRNA gene copies) decreased with 45–56% (CFU) and 54–87% (16S rRNA gene) along the Z ...
DOI:
10.3897/biorisk.17.77458

20. Occurrence and Distribution Patterns of Plum Tree Viruses and Genetic Diversity of Sharka Isolates in Bosnia and Herzegovina

Author:
Arnela Okić; Thierry Wetzel; Shaheen Nourinejhad Zarghani; Sébastien Massart; Jasmin Grahić; Fuad Gaši; Almira Konjić; Darko Vončina
Source:
Horticulturae 2022 v.8 no.9 pp. -
ISSN:
2311-7524
Subject:
Bulgaria,   etc   ; amino acids; genetic variation; genome; phylogeny; plums; surveys; trees; Bosnia-Herzegovina; Serbia; Slovenia;     Show all 11 Subjects
Abstract:
... In order to fill in a decade-long information gap regarding the biological, serological and molecular data for plum tree viruses in Bosnia and Herzegovina, a three-phase study combining symptom evaluation, and serological and molecular assays with high-throughput sequencing (HTS) technology was conducted. The most frequently observed symptoms were discolorations in the form of ring patterns, bands ...
DOI:
10.3390/horticulturae8090783