bluuebunny/crossref_metadata_2025_split huggingface dataset:
Relationships among Macro-Minerals, Other Selected Serum Markers of Bone Profile and Milk Components of Dairy Cows During Late Lactation
Authors: Mordak Ryszard , Dobrzański Zbigniew , Kupczyński Robert 
Published: October 2020

Abstract
Testing blood and milk parameters as well as analysing the relationships among these markers is very useful for monitoring the internal homeostasis and health in high-yielding dairy cows during various production periods. The aim of the study was to assess the correlations (relationships) among macro-minerals, such as calcium (Ca), inorganic phosphorus (P), magnesium (Mg), other selected bone profile markers, such as total protein (TP), albumin, activity of alkaline phosphatase (ALP) measured in serum and selected milk components such as number of somatic cells (SCC), colony-forming units (CFU), milk fat (MF), milk protein (MP), milk lactose (ML), solids, solids non-fat (SNF) and milk production in late-lactation cows. Both blood and milk samples were collected from 11 clinically healthy milking cows during the late-lactation period. The cows were examined once a day for 3 consecutive days resulting in 33 sets of blood and milk samples for laboratory and statistical analysis. Significant correlations were observed between: Mg and MP, Mg and SNF, ALP and SCC, TP and SCC, TP and MP, TP and SNF, albumin and MP, albumin and SNF, P and Mg, Mg and albumin, and between TP and albumin. When monitoring macro-mineral homeostasis and mammary gland health, especially in intensively fed high-yielding dairy cows correlations between these markers should be considered. The revealed correlations can allow for deeper comparative laboratory diagnostics of homeostasis and can be especially useful for laboratory monitoring of the potential risk of subclinical macro-mineral deficiency in high-yielding dairy cows.
Relativistic Effects in the Rotation of Jupiter’s Inner Satellites
Authors: Pashkevich Vladimir V. , Vershkov Andrey N. 
Published: October 2020

Abstract
The most significant relativistic effects (the geodetic precession and the geodetic nutation, which consist of the effect of the geodetic rotation) in the rotation of Jupiter’s inner satellites were investigated in this research. The calculations of the most essential secular and periodic terms of the geodetic rotation were carried out by the method for studying any bodies of the solar system with long-time ephemeris. As a result, for these Jupiter’s satellites, these terms of their geodetic rotation were first determined in the rotational elements with respect to the International Celestial Reference Frame (ICRF) equator and the equinox of the J2000.0 and in the Euler angles relative to their proper coordinate systems. The study shows that in the solar system there are objects with significant geodetic rotation, due primarily to their proximity to the central body, and not to its mass.
Participatory Budgeting in Urban Regeneration: Defining the Gap Between Formal and Informal Citizen Activism
Authors: Koroļova Alisa , Treija Sandra 
Published: October 2020

Abstract
Urban regeneration has been an ongoing process in many cities for decades. It has experienced various changes in terms of the main driving force, with public engagement becoming more and more important. One of the ways for communities to get involved in urban transformation is through participation in urban planning. Local communities are considered as partners in urban design processes, and in many countries their role in planning and design is defined by industry regulations. Still, one question is important – is public participation a formal tool or does it have an influence on planning and how it impacts decision making. Along with community involvement in planning processes, participatory budgeting has been developed as a public participatory approach in recent years. This gives a chance for inhabitants to participate in the budgetary decision-making process. The aim of this study is to analyse whether participatory budgeting, which is mainly municipal-led urban activism, answers the real needs of inhabitants in terms of urban regeneration. The interests of formal urban activism are defined and compared to the interests of informal urban activism actions, correlation and gaps are defined.
Macroeconomic forecasting in Poland: The role of forecasting competitions
Authors: Rybacki Jakub 
Published: October 2020

Abstract
Macroeconomic forecasters are often believed to idealistically work on improving the accuracy of their estimates based on for example the Root Mean Squared Error (RMSE). Unfortunately, reality is far more complex. Forecasters are not awarded equally for each of their estimates. They have their targets of acquiring publicity or to earn prestige. This article aims to study the results of Parkiet's competitions of macroeconomic forecasting during 2015–2019. Based on a logit model, we analyse whether more accurate forecasting of some selected macroeconomic variables (e.g. inflation) increases the chances of winning the competition by a greater degree comparing to the others. Our research shows that among macroeconomic variables three groups have a significant impact on the final score: inflation (CPI and core inflation), the labour market (employment in the enterprise sector and unemployment rate) and financial market indicators (EUR/PLN and 10-year government bond yields). Each group is characterised by a low disagreement between forecasters. In the case of inflation, we found evidence that some forecasters put a greater effort to score the top place. There is no evidence that forecasters are trying to somehow exploit the contest.
Disturbances of extracellular protein metabolism in ceruleininduced pancreatitis
Authors: Raksha Nataliia , Halenova Tetiana , Vovk Tetiana , Savchuk Olexii , Berehovyi Serhii , Beregova Tetyana , Sukhodolia Sergii , Ostapchenko Ludmila 
Published: October 2020

Abstract
Chronic pancreatitis (CP) is still a serious clinical problem due to the significant difficulties in its diagnosis, especially in the initial stages of development. Among the mechanisms that mediate the pathogenesis of CP and lead to pancreatitis-related disorders is unregulated activation of proteolytic enzymes, namely, matrix metalloproteinases (MMPs). The aim of our study was to determine the disturbances of protein metabolism under the conditions of CP alone or in combination with diabetes type 1 (CP+DT1). Herein, CP was induced in the nonlinear male rats by intraperitoneal injection of cerulein (5 µg·kg−1 of body weight; five times during fives day). DT1 was modeled in the rats with CP by a single intraperitoneal injection of streptozotocin (65 mg·kg−1 of the body weight). The levels of MMP-2 and -9 were determined by enzyme-linked immune sorbent assay, and the level of low and middle molecular weight (LMMW) substance was measured spectrophotometrically, while the peptide fractions were analyzed by size exclusion chromatography. The present study revealed a significant increase of MMP-2 and MMP-9 levels in the serum, liver and pancreas of the rats with CP and CP+DT1. Elevated levels of MMPS may act as a factor for the initiation of subsequent cascade of events resulting in the development of pancreatitis-associated complications. Pathogenesis of chronic pancreatitis alone or in combination with diabetes type 1 has been accompanied by the formation and accumulation of LMMW substance, changes in peptide composition and level of individual peptides in the tissues of the rats. Such alterations are among key triggers of amplification of metabolic disorders under chronic pancreatitis.
Correction with thiocetam of lead nanoparticles influence on morpho-functional status of rat liver
Authors: Omelchuk Sergii , Aleksiichuk Vasyl , Chaikovsky Yuri , Sokurenko Liudmyla 
Published: October 2020

Abstract
The aim of this paper is to investigate the influence of Thiocetam on morphological changes in the liver of rats and on biochemical changes in their blood after exposure to lead nanoparticles and compounds. The liver is an organ that performs a number of functions, such as the synthesis of enzymes, hormones, plasma components and the neutralization of toxins. It is involved in many metabolic processes in the body.
In undertaking this, colloidal solutions of lead sulphide nanoparticles at dosages 10 nm and 30 nm were injected into two groups of rats, PbSnano1 and PbSnano2, respectively, while group Pb(NO3) received subcutaneously a solution of lead nitrate in ion form in a dose of 1.5 mg/kg (0.94 mg/kg lead, in lead equivalent). After 60 administrations (12 weeks) of the studied substances, the exposure was discontinued and the animals were observed for 18 weeks. Subsequently, half of each group received Thiocetam by injection (for 6 weeks at a dose of 250 mg/kg) while the other half did not. We then assessed the mean body weight, absolute and relative liver weight, blood biochemistry values (total protein, albumin, glucose, total lipids, cholesterol, triglycerides levels in blood serum) and morphological changes in hepatocytes (morphological slides, nuclei cross-sectional area and cytoplasm cross-sectional area).
The outcome of this work showed that the mean body weight of animals exposed to nanoparticles with Tiocetam did not differ from that of animals exposed to nanoparticles without pharmacological correction, but relative liver weight was statistically significantly higher than the corresponding values in rats without pharmacological correction. The morphological picture in all study group animals was characterized by the normalization of microvessel blood filling, structure of hepatic plates, disappearance of infiltration with lymphocytes and histiocytes. No dystrophic changes in hepatocytes were found. All this indicates the feasibility of preventive measures during exposure to lead nanoparticles, by administering Thiocetam.
In both series of animals exposed to lead nanoparticles (PbSnano1 and PbSnano2), the cross-sectional area of the hepatocytes cytoplasm and the cross-sectional area of the hepatocytes nuclei were smaller than just after exposure, but in the series with Thiocetam adminstration, all the values did not differ from those in the control.
Theoretical and Experimental Aspects of Signal Analysis Applied to Solenoid-Type Actuators Used in Gas Valves
Authors: Kesucz Flaviu-Nicolae 
Published: October 2020

Abstract
The purpose of scientific research in this paper is to control the movement of solenoid actuators, by analyzing the applied signal. The actuator in a system is the execution element. The optimization of the system consists in finding new solutions for motion control for solenoid actuators, by designing and experimental realization of a static converter, also called alternating voltage inverter (VTA), which would become proposals for patents, or the realization of new experimental research stands. By analyzing the signal in this paper, it will be possible to design, experiment and test different types of VTA (with Arduino development boards, Raspberry Pi single board computers, logic gates) that will improve the reliability, future operation of thermal power plants.
Ecological Evaluation of Grassland Vegetation in Hodrušská Hornatina Highland
Authors: Klimantová Alexandra 
Published: October 2020

Abstract
In the submitted paper, we have analysed the results of a systematic survey of grassland communities, performed in Hodrušská hornatina highland, in Štiavnické vrchy mountains. The main aims of the research were: i) syntaxonomical classification of grassland vegetation; ii) analysis of the main ecological gradients in species composition; iii) evaluation of the influence of environmental factors on species composition of grasslands. The dataset included 153 phytosociological relevés recorded on grasslands. Grassland communities were classified within five associations: Holcetum lanati, Pastinaco sativae-Arrhenatheretum elatioris, Alchemillo-Arrhenatheretum elatioris, Anthoxantho odorati-Agrostietum tenuis, Onobrychido viciifoliae-Brometum erecti; and the successional and transitional stages belonging to alliances Arrhenatherion elatioris and Bromion erecti. The results of the Detrended Correspondence Analysis support our assumption that the main environmental gradient in species composition on grassland is related to moisture. The results of the Redundancy Analysis show that all used environmental variables explained 3.4% of the variability of the species data. The most important factors affecting the species composition were altitude, slope, distance from settlements, and management.
Venture Capital and Private Equity Funds as Source of Financing Enterprises in Poland
Authors: Janicka-Michalak Teresa 
Published: October 2020

SummarySubject and purpose of work:The main issue of the work is to present the essence of venture capital, i.e. Venture Capital funds and Private Equity funds. The aim of the article is to indicate the size of the share and the role of funds in financing enterprises located in Poland. The time horizon of the presented data covers the years 2012-2019.Materials and methods:The material for analysis is available statistical data, reports of commercial companies and other entities researching the size of the Venture Capital and Private Equity sector in Poland. For the purposes of the study, the literature on the subject was used as well as the data of: Narodowy Centrum Badań i Rozwoju, KPMG Sp. z o.o., the State Development Fund, the Startup Poland Foundation and the European Association of Venture Capital and Private Equity Investors. The method of analysis and criticism of the literature and the method of examining documents were used.Results:The research carried out in Poland makes it possible to assess the size of the implemented venture capital investments, i.e. VC and PE funds, over the years 2012-2019. The presented data indicate that the share of funds in financing Polish enterprises has a variable tendency. The percentage share of VC and PE investors in Europe in 2017-2018 is also variable.Conclusions:The Polish economic market is an attractive investment area in terms of cash allocation needs by venture capital funds. Increasing awareness of enterprise managers about the benefits of using these capitals to subsidize the activities of entrepreneurs allows them to discount VC and PE funds in innovative startups and in other processes, the implementation of which takes place in further phases of the company’s operations. The studies conducted so far cover the entire territory of Poland and are of an overview nature. The VC and PE funds, which are a new financial instrument, allow Polish enterprises to implement innovative projects.
Application of Machine Learning Algorithms for Traffic Forecasting in Dynamic Optical Networks with Service Function Chains
Authors: Szostak Daniel , Walkowiak Krzysztof 
Published: October 2020

Abstract
Knowledge about future optical network traffic can be beneficial for network operators in terms of decreasing an operational cost due to efficient resource management. Machine Learning (ML) algorithms can be employed for forecasting traffic with high accuracy. In this paper we describe a methodology for predicting traffic in a dynamic optical network with service function chains (SFC). We assume that SFC is based on the Network Function Virtualization (NFV) paradigm. Moreover, other type of traffic, i.e. regular traffic, can also occur in the network. As a proof of effectiveness of our methodology we present and discuss numerical results of experiments run on three benchmark networks. We examine six ML classifiers. Our research shows that it is possible to predict a future traffic in an optical network, where SFC can be distinguished. However, there is no one universal classifier that can be used for each network. Choice of an ML algorithm should be done based on a network traffic characteristics analysis.
Analysis of statistical model-based optimization enhancements in Generalized Self-Adapting Particle Swarm Optimization framework
Authors: Zaborski Mateusz , Okulewicz Michał , Mańdziuk Jacek 
Published: October 2020

AbstractThis paper presents characteristics of model-based optimization methods utilized within the Generalized Self-Adapting Particle Swarm Optimization (GA– PSO) – a hybrid global optimization framework proposed by the authors. GAPSO has been designed as a generalization of a Particle Swarm Optimization (PSO) algorithm on the foundations of a large degree of independence of individual particles. GAPSO serves as a platform for studying optimization algorithms in the context of the following research hypothesis: (1) it is possible to improve the performance of an optimization algorithm through utilization of more function samples than standard PSO sample-based memory, (2) combining specialized sampling methods (i.e. PSO, Differential Evolution, model-based optimization) will result in a better algorithm performance than using each of them separately. The inclusion of model-based enhancements resulted in the necessity of extending the GAPSO framework by means of an external samples memory - this enhanced model is referred to as M-GAPSO in the paper.We investigate the features of two model-based optimizers: one utilizing a quadratic function and the other one utilizing a polynomial function. We analyze the conditions under which those model-based approaches provide an effective sampling strategy. Proposed model-based optimizers are evaluated on the functions from the COCO BBOB benchmark set.
Not only sale of wood: diversification of sources of revenues in selected european public forest enterprises
Authors: Kaliszewski Adam , Młynarski Wojciech 
Published: October 2020

Abstract
Economic viability of forestry is one of the key pillars of sustainable forest management and a basis for maintaining forests and their multiple benefits for the society. It may be achieved by, inter alia, diversification of sources of income in forest management. The aim of the article is to analyse sources of revenues of state-owned forest enterprises (holdings) in selected European countries and ongoing changes in this respect in recent years. In the paper, we analyse the structure of revenues of state forest enterprises in Poland, Germany (with the examples of Bavaria and Lower Saxony) and Austria; however, particular attention is paid to the State Forests National Forest Holding in Poland, which is the largest state-owned forest holding in the European Union (EU) in terms of area of forests. The study is based on document content analysis methodology (desk research), including annual reports published by forest enterprises, statistical data and also legal regulations.
The analysis shows that while revenues from the sale of wood are the main source of income of forest enterprises, some of them are seeking to diversify their sources of revenues. The Austrian Federal Forests can serve as an example of a good development strategy based on diversified sources of income. Also, the Lower Saxony State Forest company, which is approximately 60% dependent on the sale of wood, undertakes other activities, including real estate management, hunting and recreational services. Our study shows that both the State Forests National Forest Holding and the Bavarian State Forests Enterprise are based on timber harvest and sale to a large extent. We conclude that as regards the State Forests Holding in Poland, the possibility of expanding and diversifying commercial activities should become a subject of discussion among foresters, decision makers and politicians.
A review of the Indian species of genus Polygraphus erichson, 1836 (coleoptera: curculionidae: Scolytinae) with bio-ecological notes on P. major, a pest of Pinus wallichiana A. B. Jacks (Pinaceae) in Kashmir, India
Authors: Khanday Abdul Lateef , Buhroo Abdul Ahad , Kerchev Ivan Andreevich , Singh Sudhir , Zubair R.M. 
Published: October 2020

Abstract
The Indian species of the genus Polygraphus Erichson, 1836 (Coleoptera: Curculionidae: Scolytinae) collected from various localities of the Western Himalayan region and the species available at the National Forest Insect Collection (NFIC), Forest Research Institute, Dehradun (India) were studied and are reviewed herewith. A key to Indian species of Polygraphus is provided. Detailed bioecological field and laboratory observations of P. major including mating behaviour, gallery pattern, life cycle and seasonal history are reported.
Application of growth traits and qualitative indices for selection of Scots pine (Pinus sylvestris l.) elite trees. A case study from Volyn region, western ukraine
Authors: Voitiuk Vasyl , Andreieva Valentyna , Kychyliuk Oleksandr , Hetmanchuk Anatolii , Klisz Marcin , Mohytych Vasyl 
Published: October 2020

Abstract
Since the plus trees are selected based on phenotype, it is necessary to evaluate them in progeny test. The aim of this study is an indication of selecting elite mother trees based on the results from half-sib progeny test trials. As study sites, two Scots pine half-sib progeny tests were selected. During evaluation, the progenies had reached the age of 38 and 40 years, respectively. In both progeny trials, quantitative parameters and qualitative traits of Scots pine half-sib progenies were investigated. Based on these data, complex evaluation of half-sib families was carried out. We concluded that, Scots pine progenies at the age of 38 and 40 years in fresh and moist mixed forests are characterised by acceptable quality, with the survival being 25%–33% per progeny test trial. Based on a complex evaluation of 38- and 40-year-old half-sib progenies of plus trees, we proposed to select 31% of tested plus/mother trees as candidates for elite trees. Further, the list of candidates for elite trees was created with five plus trees from the Volyn region (26% of the total tested from the region) and four plus trees from the Lviv region (40% of the total tested from the region). With age, the share of the best and undesirable trees decreases, while the proportion of intermediate trees increases in both control trees and half-sib progenies. At the age of 38 and 40 years, the proportion of fast-growing offspring was from 0% to 36%, while the declining trend that was observed in previous years was being continued. Thus, due to the declining trend in the proportion of fast-growing offspring observed at the age of 38 and 40 years, we propose to select candidate trees for an elite group not early than after 40 years of test their progenies.