bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bioactive compounds and medicinal properties of Oyster mushrooms (Pleurotus sp.)
Authors: Golak-Siwulska Iwona , Kałużewicz Alina , Spiżewski Tomasz , Siwulski Marek , Sobieralski Krzysztof 
Published: June 2018

Abstract
There are about 40 species in the Pleurotus genus, including those with high economic significance, i.e. P. ostreatus and P. pulmonarius. The fruiting bodies of oyster mushrooms are of high nutritional and health-promoting value. In addition, many species belonging to the Pleurotus genus have been used as sources of substances with documented medicinal properties, such as high-molecular weight bioactive compounds (polysaccharides, peptides and proteins) and low-molecular weight compounds (terpenoids, fatty acid esters and polyphenols). The bioactive substances contained in the mycelium and fruiting bodies of Pleurotus species exhibit immunostimulatory, anti-neoplastic, anti-diabetic, anti-atherosclerotic, anti-inflammatory, antibacterial and anti-oxidative properties. Their multidirectional positive influence on the human organism is the result of interaction of bioactive substances. Extracts from individual Pleurotus species can be used for the production of dietary supplements increasing the organism’s immunity. They are also used for the production of cosmetics. They can be added to functional foods as probiotics, or used as natural preservatives or ingredients of special foodstuffs for patients with specific diseases.
Flowering and Nectar Secretion in two Forms of the Moldavian Dragonhead (Dracocephalum moldavica L.) – A Plant with Extraordinary Apicultural Potential
Authors: Dmitruk Marta , Weryszko-Chmielewska Elżbieta , Sulborska Aneta 
Published: June 2018

Abstract

Dracocephalum moldavica is a valuable reward plant for flower visitors. The aim of the study was to ecologically characterise its flowers and leaves and assess the seasonal and daily dynamics of flowering in two white- and blue-flowered forms of this species in 2004 and 2005. Additionally, the duration and abundance of plant flowering as well as the nectar amount and sugar content were analysed. The signalling attractants of the plant include an intense scent emitted by trichomes located not only on its flowers but also on its stem and leaf surfaces. The average corolla length is 24 mm and the corolla tube, which can be completely filled with nectar, is 8.6 mm long. The floral lifespan was shown to reach 2-3 days and the mean blooming duration of both forms of dragonhead 45-48 days. The white-flowered plants produced a substantially greater number of flowers (5352) than the blue-flowered form (2965). The nectar amount obtained from ten blue flowers was 15.33 mg and that extracted from white flowers reached 17.56 mg, with 49.4% and 51.5% content of sugar, respectively. The total sugar mass produced by one white-flowered plant was 4656 mg, while one blue-flowered plant yielded 2164 mg of sugars. The sugar yield calculated in the study for the white-flowered form (586 kg · ha−1) was two-fold higher than that in the blue-flowered plants.
Dioxin Analysis of Bee Pollen Pellets Collected by Apis mellifera L. in Rural Area of Turkey
Authors: Özkök Aslı , Çakıroğulları Gül Çelik , Sorkun Kadriye , Yağlı Hatice Gür , Alsan İbrahim , Bektaş Berkay , Kılıç Devrim 
Published: June 2018

Abstract
Bee pollen, an important bee product, is harvested as a food supplement for humans, so it must be safe in terms of toxic components for consumption. The aim of this study is to determine the amounts of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), dioxin-like polychlorinated biphenyls (dl-PCBs) and non dioxin-like PCBs (ndl-PCBs) in the bee pollen pellets of Apis mellifera L. collected from Çankırı, located in the central Anatolia region of Turkey, between June and July 2014. Six types of pollen belonging to four families: Centaurea triumfettii L. - Asteraceae family; Brassica spp. L. - Brassicaceae family; Cistus spp. L. - Cistaceae family; Onobrychis spp. L., Hedysarum spp. L. and Trifolium spp. L. - Fabaceae family, were determined through microscopic analysis. Dioxin and PCB congeners were determined in a pooled bee pollen sample and all the results were found lower than the European Union regulatory limits for other foods. To the best of our knowledge, this is among the first studies on dioxin analysis in bee pollen worldwide.
Royal Jelly Aliphatic Acids Contribute to Antimicrobial Activity of Honey
Authors: Isidorow Walerij , Witkowski Stanisław , Iwaniuk Piotr , Zambrzycka Monika , Swiecicka Izabela 
Published: June 2018

Abstract
Honey is valued for its therapeutic qualities which are attributed among others to its antibacterial multifactorial properties. However, all the factors that influence these properties have not been identified. The present study is focused on the antibacterial action of fatty acids originating from royal jelly, the larval food of honeybees. Aliphatic C8-C12 acids characteristic of this bee product had previously been identified in more than fifty different samples of honey originating from seven countries and in eleven samples of Polish herbhoney. Experiments were performed to ascertain the influence of acidity on the antimicrobial activity of the acids. In acidic nutrient media all tested aliphatic hydroxyacids and unsaturated dicarboxylic acids demonstrated antibacterial action against different microbes with minimal inhibitory concentrations between 0.048 and 3.125 mM. Our results confirm that part of the antibacterial activity of honey contributes to these compounds of bee origin.
Microbiological Contamination of Honeys from Different Sources in Turkey
Authors: Borum Ayse E. , Gunes Mesut E. 
Published: June 2018

Abstract
Honey samples obtained by beekeepers taken from thirty-five different apiaries in Turkey’s region of Marmara were investigated for the presence of microorganism. Each honey sample was examined for the number of total aerobic mesofilic bacteria, coliforms, moulds and yeasts and the presence of Salmonella spp., Clostridium botulinum, along with other aerobic bacteriae such as Paenibacillus larvae and Melissococcus plutonius. In total, fifty-four honey samples of different botanical origins including unifloral (Umbelliferae, Leguminosae, Trifolium, Onobrychis), multifloral and chestnut were evaluated in the means of microbiological properties. Microorganisms were isolated in twenty-eight samples (60.86%) of pure cultures and eighteen samples (39.13%) of mixed cultures. On the other hand, no microorganisms were isolated in eight samples. Bacillus spp, Corynebacterium spp., Streptococcus spp., Staphylococcus spp. C. albicans and Penicillium spp. were isolated and identified in other honey samples. The bacteria counts were 4×102 - 1.4×103 cfu/g for aerobic mesofilic bacteria and 1-185 cfu/g for the fungi. The application of sanitary practices (hand washing, avoidance of sneezing or coughing, etc.) may be effective in controlling contamination by microorganisms. On the other hand, air, equipment and dust may be contributing causes of microbiological contamination. Therefore it is important to take precautions in order to avoid such contamination, even though such factors are often difficult to control.
Temporal and Spatial Patterns of Honeybee Colony Winter Losses in Poland from Autumn 2006 to Spring 2012; Survey Based on Self-Selected Samples
Authors: Topolska Grażyna , Gajda Anna , Imińska Urszula 
Published: June 2018

Summary
Estimations of honeybee colony winter losses in Poland have been carried out at Warsaw University of Life Sciences since 2008 (in 2008 they concerned the two winters of 2006/07 and 2007/08), using a preliminary questionnaire in 2008 and the standardized COLOSS questionnaire since 2009. During the first years of the survey, concerning the period of autumn 2006 - spring 2012, the multimode method of data collection was used, and beekeepers sent in between 393 and 769 questionnaires a year. Overall, the number of participants increased, but in particular voivodeships it fluctuated. The estimated overall winter colony loss in Poland was low during the winter of 2006/07 (10%) and quite low during the winter of 2008/09 (11.5%). In other years it was substantially higher reaching 15.2% in 2007/08, 14.8% 2009/10, as much as 18.3% in 2010/11 and then down to 15.8% in 2011/12. A similar pattern of average losses was observed, but each year, excluding the winter of 2010/11, at least 50% of beekeepers reported acceptable losses of only up to 10%. During the analysis of the spatial pattern of overall losses, some data which could blur the pattern were eliminated. The results suggest that such climatic factors as a warm autumn but also high summer precipitation, followed by low winter temperatures influenced the spatial distribution of the losses.
Methodological Approaches to Pupils’ Ecological Culture Education
Authors: Sovhira Svitlana , Dushechkina Nataliia 
Published: June 2018

Abstract
The methodological approaches to pupils’ ecological culture education such as axiological and cultural had been revealed in the article.
Theoretical methods: analysis and generalization of literature on the research problem; empiric: observation, conversation, pedagogical experiment were used in the process of research.
Based on the use of the above methods it was stated that axiology can consider the problem of the relationship between man and nature from the perspective of values, learn the range of ecological values occuring in human activities, carry out an educational influence on the formation of ecological culture. It was investigated that in terms of axiological approach, values are correlated with various aspects of human nature (the spiritual, moral, psychological, and biological).
The purpose of the article is to reveal the main methodological approaches (axiological and culturological) and apply them for the development of technology for raising the ecological culture of pupils.
Materials of the research can be used for raising the ecological culture of of pupils in secondary schools and out-of-school educational institutions, will become the basis of educational and methodical publications on the education of pupils’ environmental culture, can be used by of pupils’ self-government and class leaders in educational work with pupils.
It was revealed that the cultural approach to pupils’ ecological culture education allows determining the ratio of the ecological culture to the general and spiritual culture, considering the relationship between three social and natural subjects: people, culture, and nature. It was proved that the methodological approaches (axiological and cultural) substantiate the updating of environmental education component, ecological culture development goals, ideas of humanization and humanitarization of education, understanding of the crucial role of culture towards nature, ecological imperative of ecological culture in solving global environmental problems. Taking into consideration the above mentioned, the effectiveness of pupils’ ecological culture education technology had been developed and proved.
Predation Risk by Gastronomic Boom - Case Peru
Authors: Alvarez-Risco Aldo , Delgado-Zegarra Jaime , Yáñez Jaime A. , Diaz-Risco Santiago , Del-Aguila-Arcentales Shyla 
Published: June 2018

Abstract
The growth of tourism to Peru and the gastronomic boom with millions of people looking to taste Peruvian food is resulting in a risk of predation of natural sources necessary to make these dishes. The focus in only obtaining these ingredients can generate significant damage to the Peruvian biodiversity, so stakeholders need to develop strategies to avoid predation due to the gastronomic boom. Citizens and visitors need to play a role in protecting the natural resources and contributing to environmental sustainability.
Does Latvia Matter in Regional Geopolitics?
Authors: Lamoreaux Jeremy W. , Dyerly Nicholas 
Published: June 2018

Abstract
As early as 1994, scholars, analysts and policymakers began to wonder the extent to which the Baltic States mattered in the relationship between Russia and the West. The general consensus for the following 20 years was that the Baltic States matter considerably, especially following their inclusion in both the EU and NATO in 2004. However, in the past few years two trends have emerged which begin to call this accepted knowledge into question. First, the relationship between Russia and the West has turned more hostile following nearly 20 years of detente. The West insists (especially NATO) insists that it is within its right to protect states that were formerly part of the Soviet Union/Russia’s “near abroad”. Russia, on the other hand, insists that NATO incursion into the “shared neighborhood” is a violation of trust and overstepping normal geopolitical bounds.
Second, the Baltic States who once presented something of a united front for the West against Russia, no longer appear to have a common approach to foreign policy. While Estonia leans toward Scandinavia, and Lithuania leans toward Poland and Ukraine, Latvia is a bit of an odd man out with nowhere to turn. Furthermore, even other states in the Shared Neighborhood no longer seem to see Latvia as a valuable ally within the West. Considering this state of affairs, this paper considers whether Latvia matters anymore in regional geopolitics, or whether they are losing relevance.
The Consequences of Perceived (In)security and Possible Coping Strategies of Lithuanian People in the Context of External Military Threats
Authors: Gečienė-Janulionė Ingrida 
Published: June 2018

AbstractIn recent years, Lithuania’s changing geopolitical environment because of the military conflict between Russia and Ukraine has increased the potential military threat that inevitably affects the subjective perception of security of the population. Based on the data from representative surveys and interviews conducted in 2014 and 2016, the article examines Lithuanians’ subjective perception of external military threats in the new geopolitical context, the impact of this perception on their coping strategies and the factors that have an impact on the selection of these strategies. The article is based on Buzan’s (1983, 1991, 2007) theoretical insights into subjective security and the sociological subjective security analysis approach of Inglehart and Norris (2012), applying it to the practically unexplored subjective response (strategies chosen by individuals) to the research into the field of military threat field. These two theoretical approaches allow the analysis of how a country’s population comprehends threats to its security amid a changing geopolitical context and the examination of the impact of different groups and approaches in society when selecting coping strategies. The article argues that the perception of security changes over time, as following the events that created the feeling of insecurity in the first place, the feeling of security again starts to rise gradually. In addition, knowledge of not only the current geopolitical context but also the historical experience is important, as in societies that have undergone radical political transformations, attitudes towards the existing democratic and former Soviet regimes play a rather major part in determining subjective security. The subjective security of different social groups and their selected coping strategies also differ, as it is the most vulnerable social groups that feel least safe. The least vulnerable social groups are most inclined to defend their country, whereas more vulnerable groups choose to be passive or to look after themselves and their families first and foremost.
’Belarus – a significant chess piece on the chessboard of regional security
Authors: Piss Piotr 
Published: June 2018

Abstract
Belarus is often considered as ‘the last authoritarian state in Europe’ or the ‘last Soviet Republic’. Belarusian policies are not a popular research topic. Over the past years, the country has made headlines mostly as a regime violating human rights. Since the Russian aggression on Ukraine, Belarus has been getting renewed attention. Minsk was the scene of a series of talks that aim at stopping the ongoing war in Ukraine. Western media, scholars and society got a reminder that Eastern Europe was not a conflict-free zone. This article puts military security policy of Belarus into perspective by showing that Belarus ‘per se’ is not a threat for neighboring countries; Belarus dependency towards Russia is huge; thus, Minsk has a small capability to run its own independent security policy; military potential of Belarus is significant in the region, but gap in equipment and training between NATO and Belarus is really more; it is in the interest of Western countries to keep the Lukashenko’s regime in Belarus.
Acute Response to Endurance Exercise Stress: Focus on Catabolic/Anabolic Interplay Between Cortisol, Testosterone, and Sex Hormone Binding Globulin in Professional Athletes
Authors: Popovic Bojana , Popovic Dejana , Macut Djuro , Antic Ivana Bozic , Isailovic Tatjana , Ognjanovic Sanja , Bogavac Tamara , Kovacevic Valentina Elezovic , Ilic Dusan , Petrovic Mirjana , Damjanovic Svetozar 
Published: June 2018

Summary
Background: Endocrine system plays a major role in both permissive and regulatory activities in order to adequately respond to physical stress of exercise. But level and direction of activation depend on many factors and are not easily interpreted.
Methods: We tested a group of male professional athletes (21 water polo players and 15 wrestlers), together with 20 sedentary controls matched by age. All participants took a continuous progressive exercise stress test on a treadmill until exhaustion and plateau of oxygen consumption (VO2). Blood samples for cortisol, sex hormone binding globulin (SHBG) and testosterone were drawn in four time points: baseline (B), start of the test (S), point of maximal strain (MAX) and in the 3rd minute of recovery period (R).
Results: Cortisol levels significantly increased in both groups, but the response between S and MAX was more pronounced in controls (p=0.036). The athletes had significantly higher levels of cortisol in all points in test, except during R (p=0.118), when their cortisol levels gradually started to decline. Significant increase in total testosterone was in great deal a consequence of increase in SHBG level (p<0.01 for both). Consequently, calculated free testosterone significantly decreased during test (p=0.008), and the drop was more pronounced in athletes. This was in concordance with significant correlation between SHBG and cortisol level demonstrated in athletes, but not in controls.
Conclusions: It seems that high intensity endurance exercise favors catabolic response, but the level of response highly depends on a previous level of training.
Clinical Significance of Increased Serum Neopterin in Chronic Kidney Failure as a Biomarker of Cell-Mediated Immunity
Authors: Ünüvar Songül , Aslanhan Hamza 
Published: June 2018

Summary
Background: Neopterin is a pyrazino-pyrimidine compound which is used as a marker of cell-mediated immunity in a variety of diseases. It is known that neopterin levels increase in diseases where interferon-gamma (IFN-g) stimulation is present, and also as a result of deficiencies in renal function, given that the primary means of elimination of neopterin is through the kidneys. In this study, we aimed to investigate the role of increased neopterin levels as a prognostic biomarker in patients with impaired renal function.
Methods: A total of 90 individuals including 63 patients with chronic kidney failure (CKF) and 27 healthy volunteers were included in the study. Serum neopterin concentrations were measured using the enzyme-linked immunosorbent assay. A Mann-Whitney U test and a Pearson Correlation Test were used in the statistical analysis, with a p value of <0.05 being considered statistically significant.
Results: The mean age was 52.21±0.16 years in the patient group and 56.55±0.32 years in the control group. In the CKF patients, serum neopterin levels increased to a significantly greater degree than in the control group (p<0.001), while no statistically significant correlation was identified between serum neopterin levels and age (p>0.05).
Conclusions: A significant increase was found in the serum neopterin levels in the CKF patients, due to both the triggering of the disease and the reduction of neopterin elimination.
Führungsethik Sozialer Marktwirtschaft Ein systematischer Leitfaden für eine Mikro-Marko-Perspektive
Authors: Nass Elmar 
Published: June 2018

Abstract
Ein Leitfaden wird als Modell vorgestellt, mit dessen Hilfe Führungsethik von Führungstheorie unterschieden und eine an den Wertegrundlagen Sozialer Marktwirtschaft orientierte Führungsethik identifiziert werden kann. Theoretische Konzepte lassen sich mit dieser Makro-Mikro-Perspektive daraufhin überprüfen, ob sie einen Verantwortungsdualismus von Effizienz- und Humanziel in der Führungskultur schlüssig bestimmen. Mithilfe von vorgeschlagenen Prinzipien und Perspektiven kann so in vier Schritten eine Führungsethik in der normativen Linie Sozialer Marktwirtschaft von davon abweichenden Modellen unterschieden werden.
Ludwig Erhards Konzept der sozialen Marktwirtschaft und seine wettbewerbstheoretischen Grundlagen
Authors: Rhonheimer Martin 
Published: June 2018

Abstract
Erhards Konzeption einer sozialen Marktwirtschaft durch marktwirtschaftlichen Wettbewerb ist auch heute noch wegweisend. Doch wurde die Idee des Sozialen im Programm der Sozialen Marktwirtschaft mit der Zeit verfälscht. Zudem beruht Erhards Konzept auf einer wettbewerbstheoretischen Grundlage – dem neoklassischen Modell der vollständigen Konkurrenz –, die seinen wohlstandsfördernden Intentionen zuwiderläuft. Erhards Position stimmte mit derjenigen der Freiburger Schule (Walter Eucken, Franz Böhm) nur teilweise überein, unterscheidet sich aber ebenso in wesentlichen Punkten vom Denken der Österreichischen Schule der National-ökonomie (Ludwig von Mises, Friedrich August Hayek) und deren dynamisch-evolutionärem Verständnis von Wettbewerb. Gerade für eine im Sinne Erhards wettbewerbsorientierte Konzeption der Sozialen Marktwirtschaft erscheint das Österreichische Verständnis von Wettbewerb als das realitätsnähere und adäquatere.
Transportation Factors in the Distribution of Agricultural Produce to Urban Center in Nigeria
Authors: Joseph Afolabi Oluwaseyi , Adedamola Oluwaji Olalekan , Alice Onifade Temitayo 
Published: June 2018

Abstract
This research analyzed the transportation factors in the distribution of agricultural produce in ljebu north local government area of Ogun State. A total of 100 questionnaires were randomly and purposively distributed to transporters in Ijebu North local government Area, while 95 were collected and analyzed. The field survey revealed that 94 of the respondents representing 98.9% are male, 1 of the respondents representing 1.1% is female. Estimated income of transport operators from field survey revealed that 16 of the respondent representing 16.8% earned below N5, 000, 11 of the respondent representing 11.6% earned between N5, 001 and N10,000, 35 of the respondent representing 36.8% earned between N10,001 and N20,000. 25(26.3%) earn between N20,001 and N30,000, 8(8.4%) earn above N30,000.Observation from the field survey also shown that 5(5.3%) transporter revealed that they operate with buses, 18(18.9%) transporters revealed that they operate with station wagon, 39(41.1%) transporters revealed that they operate with pick-up van, 20(21.1%) transporters revealed that they operate with saloon car while 13.7% transporters revealed that they operate with other means. Finding shows that combination of food crops, cash crops, tubers, poultry, fruits, vegetables and poultry product dominate Ijebu North Local Government Area in which farmers combined cultivation of those crops. Roads in the study area are in a deplorable condition, the type of vehicle used by farmers and traders depend on the volume of the agricultural produce.