bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modeling and Optimization of Phenol Formaldehyde Resin Sand Mould System
Authors: Chate G. R. , Patel M. G. C. , Parappagoudar M. B. , Deshpande A. S. 
Published: July 2017

AbstractChemical bonded resin sand mould system has high dimensional accuracy, surface finish and sand mould properties compared to green sand mould system. The mould cavity prepared under chemical bonded sand mould system must produce sufficient permeability and hardness to withstand sand drop while pouring molten metal through ladle. The demand for improved values of permeability and mould hardness depends on systematic study and analysis of influencing variables namely grain fineness number, setting time, percent of resin and hardener. Try-error experiment methods and analysis were considered impractical in actual foundry practice due to the associated cost. Experimental matrices of central composite design allow conducting minimum experiments that provide complete insight of the process. Statistical significance of influencing variables and their interaction were determined to control the process. Analysis of variance (ANOVA) test was conducted to validate the model statistically. Mathematical equation was derived separately for mould hardness and permeability, which are expressed as a non-linear function of input variables based on the collected experimental input-output data. The developed model prediction accuracy for practical usefulness was tested with 10 random experimental conditions. The decision variables for higher mould hardness and permeability were determined using desirability function approach. The prediction results were found to be consistent with experimental values.
Braking Distance of Hoist Conveyances Required for Safe Stopping Under the Conditions of Emergency Braking
Authors: Wolny Stanisław 
Published: July 2017

Abstract
This study investigates selected aspects of the dynamic behaviour of mine hoists during the emergency braking in an event of overtravel. Characteristics of the braking force that needs to be applied in the headgear and in the pit bottom to arrest the conveyance in the event of an overtravel are derived from laboratory and industrial test data and recalling the results reported in literature. The real hoist installation is replaced by a model whereby the equations of motion of rope elements are written as for elastic strings, taking into account the variable length of the hoisting rope section between the Koepe pulley and the conveyance being arrested in the head tower. Analytical formulas are provided whereby the displacement of the top conveyance with the payload for the constant elasticity coefficient of the hoisting rope section between the conveyance being arrested in the head tower and the Koepe pulley is expressed as the function of the braking force and of the operational parameters of the hoist gear. The hoist operation is investigated in the event of emergency braking, taking into account the two aspects of the cycle: - the time required for the conveyance to be stopped, - the distance travelled by the conveyance until it is stopped. The results of the dynamic analysis of the hoist installation in the conditions of emergency braking may be utilised in selection of the effective and adequate braking system guaranteeing the safety of the system operation.
Elaiaşi – New Sweet Cherry Cultivar with High Productivity and Medium Ripening Time
Authors: Iurea Elena , Sîrbu Sorina , Corneanu Margareta 
Published: July 2017

AbstractThe aim of this paper is to improve the autochthonous sweet cherry assortment with new cultivars of good adaptability and ecological plasticity, with superior biological potential, productive, with quality fruits and superior features, in comparison to existing cultivars. Due to the characteristic of having an earlier ripening age for the fruits compared to the other tree species (beginning in May), the cherry is the first ring in the annual chain of fruits production. On the fresh fruits market, the preferred ones are the cultivars type ‘bigarreau’, with shining red colour, resistant to cracking, transport and temporary storage with the weight of over 7 g. Analysing the main phenological stages for the two cultivars, it was noticed that the new sweet cherry cultivar ‘Elaiaşi’ is average both in flowering beginning time and fruits maturation season. In regards to average productions for five years (2012 - 2016), from the statistical point of view, it was noticed that ‘Elaiaşi’ (21.1 kg/tree) recorded production with insignificant positive differences in comparison to the witness cultivar ‘Van’ (20.2 kg/tree). Under the aspect of fruits’ weight and equatorial diameter, ‘Elaiaşi’ (8.8 g and, respectively, 25.1 mm) recorded significant and respectively positive significant differences, in comparison to the witness cultivar ‘Van’ (7.6 g and 23.9 mm). Concerning the fruit’s resistance to cracking, ‘Elaiaşi’ cultivar presented a superior resistance (2.7 %) to the witness cultivar ‘Van’ (42.0 %), recording distinct significant negative differences in comparison to this cultivar from the statistical point of view.
Testing out the disciplinary role of debt in Croatian banks
Authors: Bambulović Mario , Huljak Ivan , Kožul Antonija 
Published: July 2017

Abstract
According to the agency theory, debt brings discipline to management and therefore, one way of reducing agency costs is by increasing the level of indebtedness. Even though there are a number of specificities of banks as corporations, this agency theory postulate should still be valid. This research is motivated by the need to understand microeconomics of banking better, which could be especially rewarding in CEE countries where the issues of credit risk, bank capital and corporate governance are specific. Accordingly, by testing the disciplinary role of debt in Croatian banks, we contribute to the still scarce literature on bank governance in Croatia. We operationalise the research by first generating an efficiency measure, which we believe adequately represents management efforts and ability to maximize the value of owners’ investment. In the next step, we explore the relation between banks' efficiency and leverage. Our results do not indicate that debt generally creates a discipline mechanism for bank managers in Croatia.
Association between Type 2 Diabetes, Obesity and Key Immunological Components of IgE-mediated Inflammation
Authors: Sokolova Raditsa N. , Yankova Rumyana K. , Abadjieva Tsvetana I. , Popova Tatyana A. , Ivanovska Maria V. , Murdjeva Mariana A. , Orbetzova Maria M. , Dermendzhiev Svetlan M. , Pavlova Maria V. 
Published: July 2017

AbstractBackground:Changes in lifestyle and obesity in recent decades have brought about a dramatic increase in type 2 diabetes mellitus (DM2) and allergic diseases. Clinical and epidemiological studies associate obesity with epidemics of allergic diseases. The link between obesity and DM2 with immunological components of IgE-mediated allergic inflammation is not yet conclusively established.Aim:To examine the key immunological components of IgE-mediated allergic inflammation in patients with DM2 and their relationship with glycemic control and anthropometric indicators.Materials and methods:Fifty-five patients with DM2 and 32 healthy controls with normal weight and body mass index (BMI) of 18-24.9 kg/m2were included in the study. Th2-cytokine profile (serum levels of IL-4 and IL-5, pg/ml) and total serum IgE IU/ml were assessed in all participants in the study using ELISA. In patients with DM2, levels of glycated hemoglobin (HbA1c%) in the blood were also measured.Results:Serum levels of IL-4 and IL-5 are significantly higher in patients with DM2 compared to the control group. Serum levels of IL-4 and IL-5 positively correlated with BMI as well as serum levels of IL-4 with waist circumference. Total serum IgE positively correlated with HbA1c.Conclusion:Obesity and poor glycemic control in patients with DM2 affect key immunological components of IgE-mediated allergic inflammation and possibly alter the immune response to allergens and antigens.
Symptomatic Coronary-Pulmonary Fistula Revealed with Coronary CT Angiography
Authors: Papp Sára , Édes István Ferenc , Merkely Béla , Maurovich-Horvat Pál , Károlyi Mihály 
Published: July 2017

Abstract

Introduction: Coronary artery fistulas are usually incidental findings and rarely cause any clinical symptoms.

Case presentation: In this case a coronary pulmonary fistula was revealed by coronary CT angiography and as it was considered responsible for the patients’ symptoms, its’ closure was performed during percutaneous coronary intervention.

Conclusion: The noninvasive coronary CT angiography is a valuable examination in the diagnosis of coronary anomalies.
Coping with employment issues through commuting: Evidence from Central Russia
Authors: Gunko Maria , Nefedova Tatyana 
Published: July 2017

AbstractCommuting to work has become a widespread practice over the last several decades. Some relatively strong employment issues in rural Russian municipalities, as well as a significant wage gap between them and the major cities, fosters daily commuting as well as commuting with long periods of time spent at employment locations, known in Russia as otkhodnichestvo. Based on official statistical data and our own surveys conducted in Tula and Kostroma regions, we analysed the spatial differentiations between the share of commuters in the employed population of rural municipalities, as well as the variations in individual socio-economic characteristics between rural commuters and non-commuters, in general, and between the commuters themselves. Our analysis of the latter characteristics suggests that there is in fact more difference between the rural commuters and non-commuters in Russia than between daily commuters and those engaged in otkhodnichestvo, indicating similar motives and, perhaps, even personalities of commuters. Giving the identified differences, commuting on a larger scale does not seem to be a universal tool to cope with employment issues, as some population groups are more likely to engage in it than others.
Distribution and Habitat Preferences of the Invasive Alien Rosa rugosa (Rosaceae) in Archipelago Sea National Park, SW Finland
Authors: Kunttu Panu , Kunttu Sanna-Mari 
Published: July 2017

AbstractRosa rugosaThunb. is an invasive alien plant which was introduced from East Asia to Europe in the 19thcentury. Over the decades it has spread along the Finnish coast, including the archipelagos of the Baltic Sea. The shrub grows particularly along sandy beaches, stony shores and seashore meadows. There it leads to serious changes in coastal ecosystems and replaces native plant species. This paper presents the distribution and habitat preferences ofR. rugosain and near Archipelago Sea National Park in SW Finland. We identified 205 stands in the study area, 58% of them in protected areas. Systematic inventories do not cover the whole study area, so it is likely that dozens of stands remain undiscovered. Stands of the species were concentrated on the outer islands, where the archipelago’s most characteristic flora and fauna occur. Data on the shore type and area of all stands were collected. The total area covered byR. rugosawas 7277 m2before control work started in 2008. The largest stand occurred on Örö Island, coveringca2500 m2before its eradication, and the median size of all stands was 6 m2. Five of the six largest stands were on sandy beach, but stony shore was the most common habitat type.
The integration of the molecular methods in the diagnosis algorithm for the poliovirus detection in the sewage water: comparing concentration and detection methods. A Pilot Study
Authors: Băicuş Anda 
Published: July 2017

Abstract

Introduction. Two cases of circulating vaccine-derived poliovirus type 1(cVDPV1), from southwestern Ukraine, bordering Romania, were confirmed in 2015 and the environmental enterovirus surveillance was enhanced in our country. The molecular detection of human enteroviruses as a screening test followed by isolation on cell culture lines or sequencing could be proposed as a new diagnosis algorithm.

Material and Methods. The sensitivity of two molecular methods for the detection of enterovirus strains in 10 mL of sewage water (15 samples) was studied with Film Array ME panel BioFire (Biomerieux, France) and Xpert EV assay (Cepheid, USA). These are standardized methods for the detection of microorganisms in the cerebrospinal fluid (CSF).

Results. Of the 15 samples, six enterovirus strains were detected using Film Array ME, four enterovirus strains were detected using Xpert EV assay, while only two nonpolio enterovirus strains were isolated on RD cell line, using the standard WHO algorithm. However, only one of the strains detected by the standard WHO algorithm was detected by one of the molecular methods.

Conclusions. The molecular methods for enterovirus detection are more sensitive than the virus isolation on cell culture lines, but in one case the virus isolated on RD cell line was not detected by the molecular methods. The results could be influenced by the small number of the samples investigated, by the volume and the concentration method used for samples tested, and by the limits of detection (LoD) of the enterovirus species in the samples, depending on the method used.
Izvješća sa znanstvenih skupova
Authors: Lončar Nina , Surić Maša , Blaće Ante , Lozić Sanja 
Published: July 2017

U lipnju 2008. godine u organizaciji Instituta za istraživanje krša Slovenske akademije znanosti i umjetnosti (Inštitut za raziskovanje krasa Znanstvenoraziskovalnega centra Slovenske akademije znanosti in umetnosti) održan je već tradicionalni i svake godine sve bogatiji znanstveni skup 16thInternational Karstological School "Classical Karst". Suorganizatori skupa bili su Speleological Association of Slovenia, Slovenian National Commission for UNESCO, Karst Commission IGU i International Speleological Union UIS. Tema ovogodišnje međunarodne škole krša bili su površinski i spiljski krški sedimenti. Skupu je prisustvovalo 170 znanstvenika i studenata iz 34 države, što je prema informacijama organizatora najviše do sada. Velikom broju mladih sudionika omogućeno je prisustvovanje uz potporu programa stipendiranja Marie Curie pod pokrovitreljstvom Europske komisije za znanost. ...
Ekološki otisak cestovnog prometa na cresko-lošinjskom arhipelagu
Authors: Grofelnik Hrvoje 
Published: July 2017

Cres-Lošinj Archipelago is the largest insular traffic unit in Northern Adriatic. The archipelago consists of two large islands, Cres and Lošinj, and 27 smaller islands located among Kvarner, Kvarnerić, Rijeka Bay and open sea. From the point of view of traffic, this area gravitates mostly toward Rijeka traffic node. Traffic development of the islands was determined in the second half of the 20th century with the development of ferry traffic and road traffic on the islands. Today, the Archipelago is characterized by prominent seasonal variations of road traffic intensity due to dominant role of tourism in space valorisation. This research included partial determination of Ecological Footprint of road traffic on the islands on the basis of CO2 emission and capacity of insular surfaces to absorb CO2 .The author also created a model for calculating road mileage on the islands and indirectly calculated CO2 emission. The results indicated significant seasonal variations of CO2 emission on the islands, which are closely related to tourist valorisation of space and the number of non-residential vehicles on the islands. The paper also provides the ratio between residential and non-residential vehicles on the island, which influence the emission in accordance with their energy efficiency. The research showed that the capacity of CO2 absorption on Cres-Lošinj Archipelago is approximately 40 times greater than CO2 emission from road traffic during one year.
Suvremeni demografski i razvojni izazovi općine Dubrovačko primorje, Hrvatska
Authors: Karlić Mujo Helena 
Published: July 2017

The purpose of this paper is to define the basic issues and opportunities challenging the modern development of the Municipality of Dubrovačko Primorje, their causes and effects. The processes of depopulation affected this poorly developed rural region since 1960s, which had been influenced by various factors: development polarisation caused by intensive development of tourism, the poor traffic infrastructure in the highland-area of the Municipality and the unsolved water supply issue. In 1990s a series of events intensified negative demographic trends as follows: aggression on Croatia, occupation during which residential, economic and infrastructural buildings were destroyed and burnt, as well as an earthquake which happened after the return of the refugees. The long-lasting rural emigration from this region towards Dubrovnik caused not only an instantaneous decrease of population but also a contraction of the renewing basis and an accelerated decrease of natural growth in the Municipality of Dubrovačko Primorje. In that way the emigrational depopulation as a consequence of a specific socioeconomic development, became the cause of the current biological depopulation. The intensity of the depopulation processes has been established by an analysis of a total population dynamics and the changes in biological and economic population structure. The conclusion of the study indicates activities which have promising development in the Municipality of Dubrovačko Primorje and which might partly stop the negative demographic trends. Those are mainly traditional activities in this region which are not commercially used enough. They should prevent any further emigration and perhaps even attract those who immigrated, back to their place of birth
Varijabilnost padalina u Hvaru i Crikvenici
Authors: Maradin Mladen 
Published: July 2017

The study analyses the precipitation variability in Hvar and Crikvenica in the period from 1931 to 1990. These stations have a maritime type of the annual course of precipitation. The minimum value of the precipitation variability in Hvar is in autumn, in November, while the secondary minimum of the variability is in spring, in April. The primary maximum of variability is in summer, most often in July, while the secondary maximum is in March. In Crikvenica the minimum values of the precipitation variability in April and November are even, and the same is true for the maximum values of the variability in September and March. The value of the annual precipitation variability is higher in Crikvenica than in Hvar although Crikvenica has higher amount of precipitation. The location of the stations included in this research is relevant. In Crikvenica the variability is higher in autumn and winter. Monthly values of the mean relative variability coincide in the cold part of the year when the variability is only slightly higher in Crikvenica, while in the warm part of the year, with the exception of September, the variability in Hvar is significantly higher.
Phenotypic diversity in natural populations of an endangered plant <em>Tetracentron sinense</em>
Authors: Han Hongyan , Li Shan , Gan Xiaohong , Zhang Xuemei 
Published: July 2017

Background: Tetracentron sinense, distributed mainly in central and southwest China, is a threatened deciduous broad-leaved canopy tree. Presently, little is known about the phenotypic diversity in natural populations of T. sinense, and its fitness and evolutionary potential to the fragmental habitat, which is very important for its conservation.Questions: (1) How is the level of phenotypic diversity in natural populations of T. sinense? (2) Which factors influenced the phenotypic variation?Species study: Tetracentron sinense.Study dates: Between September and October 2014Methods: 20 phenotypic traits from 11 populations were measured. Nested analysis of variance, multi-comparison, principal components analysis, cluster analysis and correlation analysis were used to study the phenotypic variation and its relation to geo-climate factors.Results: Analysis of nested variance showed significant difference among and within populations, but the phenotypic differentiation coefficient and variance component among populations was higher than that within populations. Variation of phenotypic traits in T. sinense was mainly associated with annual sunshine hours, and showed cline variation along longitude and elevation. 11 provenances of T. sinense were clustered into four groups based on PCA.Conclusions: Phenotypic variation in T. sinense mainly existed among population, and there was moderate level of phenotypic differentiation among populations and low level of phenotypic variation within populations in T. Sinense. Autogamy or geitonogamy may be the major factor contributing to the low phenotypic variation and moderate genetic divergence within this species. Suggestions for conservation strategies are provided.
Genetic variation and seed yield in Tunisian castor bean (<em>Ricinus communis</em> L.)
Authors: Saadaoui Ezzeddine , Martín-Gómez José Javier , Ghazel Naziha , Yahia Kaouther Ben , Tlili Nizar , Cervantes Emilio 
Published: July 2017

Background and hypothesis: Castor bean (Ricinus communis) is spontaneous in Tunisia with a wide geographical distribution. To study seed morphology we introduced J index as the percent of similarity of seed images to an ovoid. Reduced seed size, J index and color intensity were observed in the population grown in the desert (Martín Gómez et al. 2016). Our objective is to analyze the variability in castor bean grown from seeds obtained from different geographic origins, to describe morphotypes and to find phenotypic parameters to select productive populations.
Data description, mathematical model, study site and methods: Seeds collected from twelve populations in 12 Tunisian sites (4 bioclimatic regions) were sown in the experimental field of INRGREF in Gabes (Tunisia). After 10 months, morphological and agronomic characteristics of plants were measured. Morphological traits of seeds were analyzed.
Results: Three groups were obtained. The first represented by a single population (northern Tunisia) is characterized by small leaves, large fruit, small seed and early flowering. The second group includes nine populations with intermediate values for fruit and seed dimensions. The third group characterized by reduced fruit length and elevated values of seed length and width. Seed yield varied between populations.
Conclusions: Some features of seeds were maintained from the parental generation. Reduced size and color intensity with increased roundness values were maintained in the seeds of the Saharan region. J index values, reflecting the morphological similarity with an ovoid, increased in relation to the previous generation, in general as in particular in the seeds of the Saharan region.