bluuebunny/crossref_metadata_2025_split huggingface dataset:
Satellite Technologies in Monitoring of Ecosystems
Authors: Belyaev Nikolay , Krupin Vasily , Mikhalenko Evgeny , Smirnov Aleksandr , Vilkevich Valentin , Zagriadskaya Natalia 
Published: June 2015

<p class="R-AbstractKeywords"><span lang="EN-US">The article provides a description of modern geodetic devices, which are used to solve several problems connected with environmental and hydraulic engineering. In particular, a non-conventional method of area measurement for ecosystems monitoring, which involves the usage of satellite navigation devices, is considered. </span></p><p class="TTPParagraphothers"><span lang="EN-US">Nowadays electronic tachymeters, digital levelling instruments, laser scanning systems and satellite systems are widely used for implementation of geodetic engineering works. In full extent it could be also applied to different environmental and hydraulic engineering problems solution.</span></p><p class="TTPParagraphothers"><span lang="EN-US">The satellite navigators, especially with GPS+GLONASS system support, are the promising alternative to handle different planimetric tasks, particularly, water surface and drainage area measurement. </span></p><p class="TTPParagraphothers"><span lang="EN-US">The paper presents an analysis of the results of research carried out in 2012-2014 years and comparison of them with the new field data. Moreover the obtained results are compared with the theoretical values of quadrates’ areas and the dependence of the relative accuracy versus land plot area is built.</span></p><p class="TTPParagraphothers"><span lang="EN-US">Based on a practical research, the accuracy of the method is being estimated. The analysis of different measuring conditions and factors, regarding their effect on accuracy, is made. </span></p><p class="R-MainText"><span lang="EN-US">The suitable areas, where the method could be used, are mentioned. Particularly, the possibility of water surface and drainage area measuring is examined with the usage of previous theoretical base. </span></p><p class="TTPParagraphothers"><span lang="EN-US">The paper presents an analysis of the results of research carried out in 2012-2014 years and comparison of them with the new field data. Moreover the obtained results are compared with the theoretical values of quadrates’ areas and the dependence of the relative accuracy versus land plot area is built.</span></p><p class="TTPParagraphothers"><span lang="EN-US">Based on a practical research, the accuracy of the method is being estimated. The analysis of different measuring conditions and factors, regarding their effect on accuracy, is made. </span></p><p class="R-MainText"><span lang="EN-US">The suitable areas, where the method could be used, are mentioned. Particularly, the possibility of water surface and drainage area measuring is examined with the usage of previous theoretical base. </span></p>
Meteorological Forecasting for renewable energy plants. A case study of two energy plants in Spain
Authors: López Andrés Robalino , Mena-Nieto Ángel 
Published: June 2015

<p class="R-AbstractKeywords"><span lang="EN-US">Energy resources are the engines that drive every economy [1], [4], [14], Therefore, it is necessary to develop their exploitation in a friendlier, environmentally and sustainable way indeed it is a critically needed nowadays. Then, it is necessary to improve efficiency and optimize renewable energy in order that replace polluting energy sources. This work aims to relate the use of forecasting on meteorological variables such as wind speed, wind direction, solar radiation, among others, obtained by mathematical models implemented on computer to forecast energy production in renewable energies plants. It has been implemented and automated one of the most used models by the scientific community in this field, WRF (Weather Research and Forecasting Model). WRF is a next generation mesoscale model, designed to serve as a tool for meteorological research in addition to provide forecasts in operational regime. This research introduce the topic of energy forecast, mainly of renewable energy, focusing on wind and solar energy, basing the study on a better forecasting of meteorological variables in order to use as income in energy production forecast. A case study in two Spanish renewable energy plants is exposed</span><span lang="EN-US">. </span></p>
Management of current assets in the context of increasing the Enterprise’s Profitability
Authors: Arbidane Iluta 
Published: June 2015

<p class="R-AbstractKeywords">In order to ensure the financial sustainability of companies under current economic conditions successful management of current assets is crucial. In practice it is quite often observed that the decisions related to current assets management in Latvian companies are made in the short-term aspects without making analysis. Efficient management of working capital is an essential condition of rise in profitability of a company. Potentialities of working capital management in the context of efficient running of business have not been studied in Latvia up until now. The main aim of this article is to examine the effect of working capital on profitability of Latvian companies. The results of the research that has been performed in relation to Latvian enterprises confirm the existence of a correlation between components of working capital and profitability. The developed regression equations meant for forecasting profitability of a company applying working capital management methods can be used by Latvian enterprises. It follows that managers of an enterprise can forecast indexes characterizing profit, managing components of working capital and maintaining it on the optimum level</p>
Influence of SiO2 nanoparticles on relative fluorescence of plant cells
Authors: Grauda Dace , Rashal Isaak , Belogrudova Inta , Katashev Alexey , Bumbure Lada 
Published: June 2015

Nanoparticles (nano-scale particles (NSPs)) are defined as particles with dimensions less than 100 nm. SiO<sub>2</sub> nanoparticles are one of the most widely common nanoparticles in the environment, particularly in urban areas. The sources of SiO<sub>2 </sub>nanoparticles are very different, including natural nanoparticles, anthropogenic and engineered nanoparticles. The SiO<sub>2 </sub>nanoparticles could be considered a source of different pollution effects on leaving organisms. Nevertheless, knowledge of the mechanisms, through which the SiO<sub>2 </sub>nanoparticles affect cells, is incomplete. The aim of the research was to elaborate a method to determine changes in relative fluorescence of both somatic and immature gametic plant cells in presence of SiO<sub>2</sub> nanoparticles. Relative cell fluorescence was measured with BD FACSJazz® cell sorter using 488 nm exciting laser light. Mean cell fluorescence was determined for samples of purified cell suspension. Gates of different size and shape were preliminary tested to find those with the lowest CV. Cell plots were created by BS FACS Software 1.0.0.650. The densest part of the plot was gated using oval-shaped gate. The gate included 95-99% of all cells. A logarithmic scale in arbitrary fluorescence units was applied to determine cell relative fluorescence. More than 10 000 cells were gated and analysed from each sample. Somatic cell culture from callus culture initiated from leaves of flax (<em>Linum usitatissimum) </em>was obtained. The relative fluorescence of the somatic cells had large distribution, since the cells differ by many parameters (size, shape, metabolism etc.). Immature pollen cells (one-nucleus stage) as best for SiO<sub>2</sub> nanoparticles influence investigation were found. The influence of SiO<sub>2</sub> nanoparticles on several plant species (<em>Cyclamen persicum, Tilia cordata, Hordeum vulgare</em> and <em>Triticum </em><em>aestivum</em>) immature pollen cells were investigated. A significant increase in relative cell fluorescence was observed for all mentioned plant species cells after incubation in SiO<sub>2</sub> nanoparticles suspension. It was found that cell relative fluorescence was dependent on cultivation duration in SiO<sub>2</sub> nanoparticles suspension.
Evaluation and long-term conservation perspectives of woodland key habitat bryophyte and lichen indicators in Latgale
Authors: Mežaka Anna , Putna Sanita , Erta Inga 
Published: June 2015

<span lang="EN">Nowadays human impact to habitats and species are stronger then ever before. Latvia is typical example of fragmented landscape, where forest patches are mixed with agricultural land and waterbodies. Latgale is one of typical such a fragmented landscape parts of Latvia. Around 6.41 % of Latgalian forests were evaluated as Woodland Key Habitats (WKHs) or potential WKHs (P)WKHs after WKH inventory. In total 16 WKH types, suitable for bryophyte and lichen indicator species existence were identified in Latgale. (P)WKH type, forest stand age and area were significant factors influencing bryophyte and lichen specialist and indicator species richness in forest stand level. WKH status did not provide any official conservation status for habitats or species based on current legislation in Latvia. Therefore establishment of conservation areas as microreserves for habitats and species and Nature Reserves in areas, with high (P)WKH density is an effective tool for their long-term conservation in Latgale. Further scientific studies of bryophytes, lichens and WKHs are necessary for planning the best conservation scenarios taking into account also forest ecosystem services. </span>
The Changes of Nutrient Content in Soil in Long-term Fertilizer Experiments
Authors: Vigovskis Janis , Jermuss Aivars , Svarta Agrita , Sarkanbarde Daina 
Published: June 2015

<p>The paper describes the influence of long term (more than 30 years) fertilizer application to the changes of soil properties and identifies the influence of different fertilization rates to phosphorus, potassium, calcium and magnesium accumulation in soil.</p><p>The research has been carried out at the Research Institute of Agriculture of Latvian University of Agriculture in the long-term subsurface drainage field established in Skrīveri in 1981 under the guidance of professor J. Štikāns. The long-term drainage field was established in the uncultivated gleyic sod-podzolic <em>Hypostagnic</em> <em>Endogleyic Albeluvisol (Hypereutric), stw-ng-AB(he) </em>loam that had not been used in agriculture for 20 years before. The experimental field was established with four rates of mineral fertilizers: without fertilizers, N45P30K45; N90P60K90 N135P90K135 calculated in form of P<sub>2</sub>O<sub>5</sub> and K<sub>2</sub>O. Since 1994 a seven-year crop rotation has been organized: 1) winter triticale, 2) potatoes, 3) spring wheat, 4) spring oilseed rape, 5) spring barley + perennial grasses (red clover, timothy), 6) perennial grasses, 1st year of using, and 7) perennial grasses 2nd year of using. Mineral fertilizers were applied according to the anticipated rates of plant nutrient elements annually during the cultivation of soil before sowing. For winter cultivars the phosphorus as superphosphate and potassium as potassium chloride fertilizers were cultivated before the sowing in autumn and nitrogen in form of ammonium nitrate was applied the next spring at the beginning of vegetation and at the stage of tillering. During the vegetation period all the required common agro-technical measures were taken – treatment with herbicides, fungicides and insecticides.</p><p>After 32 years of trial similar soil parameters showed significantly different content of nutrients related to the different level of fertilizer application. On a low background of fertilizers (N45P30K45) a small increase of mobile phosphorus in soil has only been observed in recent years. At the fertilizer rate N90P60K90 the content of available phosphorus and potassium in soil gradually begins to grow. Fertilization norm N135P90K135 caused a constant accumulation of nutrients in soil. In 30 years’ time the content of exchangeable phosphorus (calcium lactate – extractable) has increased more than 20 times (from 9 till 184 mg P<sub>2</sub>O<sub>5</sub> kg<sup>-1</sup>) and exchangeable potassium (calcium lactate – extractable) has increased more than 4 times (from 64 till 223 mg K<sub>2</sub>O kg<sup>-1</sup>). There were no relation between different fertilizing rates and calcium and magnesium content in soil observed.</p><p> </p>
Distribution of iron and iron compounds in the Kemeri - Jaunkemeri occurence of sulphide water
Authors: Prols Janis , Teirumnieka Ērika , Teirumnieks Edmunds 
Published: June 2015

Iron concentrations, distribution and migration forms, depending on pH and oxidation – reduction potential, were analyzed in case of the Kemeri-Jaunkemeri occurrence (area about 240 km<sup>2</sup>) of sulphide containing water (maximal sulphides concentration – 74 mg/l), located in Latvia. Iron content was investigated in 457 wells located within all area of occurrence. Those wells were installed to two aquifers: the Quarternary multi-aquifer and Salaspils aquifer, where occurrence of sulphide containing groundwater is distributed. All groundwater of occurrence is classified in four types depending on oxygen, sulphides and organic matter content in the groundwater. Modeling of groundwater migration forms was carried out, and it is stated that iron migrates basically as Fe<sup>2+</sup> in oxygen and suphides non-containing water. Migration forms are influenced by concentration of organic matter in the aquifer. The portion of Fe<sup>2+</sup> migrating in a form of free decreases due to formation of complexes with fulvic and humic acids, which can reach 36.5% of all migration forms. Iron migrates as Fe(OH)<sub>3</sub> in oxygen containing water (more than 99% of determined forms). Presence of iron is ascertained also in sulphides containing water, where iron migrates basically as (98.8% of determined forms). This occurs due to formation of complexes with sulphydes – FeHS<sup>-</sup> and Fe(HS)<sub>2</sub><sup>o</sup>.
Storing an OWL 2 Ontology in a Relational Database Structure
Authors: Gorskis Henrihs , Borisov Arkady 
Published: June 2015

<p class="R-AbstractKeywords"><span lang="EN-GB">This paper examines the possibility of storing OWL 2 based ontology information in a classical relational database and reviews some existing methods for ontology databases. In most cases a database is a fitting solution for storing and sharing information among systems, clients or agents. Similarly, in order to make domain ontology information more accessible to systems, in a comparable way, it can be stored and provided in a database form. As of today, there is no consensus on a specific ontology database structure. The main focus of this paper is specifically on OWL 2 as a basis for the description of ontology centric information in a database. The Web Ontology Language OWL 2 is a language for describing ontology information for the Semantic Web. As such it consists of a list of reserved words and grammatical rules for defining many parts of ontology knowledge. Based on this language specification this paper examines the possibility of storing information in a relational database for the description of domain ontology information. By creating a database structure based on OWL2 it is feasible to obtain an approach to storing information about the domain ontology in an utilizable way, by using its descriptive abilities. Nowadays multiple approaches to storing ontology information and OWL in databases exist; most of them are based on storing RDF data or provide persistence for specific OWL software libraries. The examination of the existing approaches provided in this paper, shows how they differ from the goal of obtaining a general, more easily usable and less software library specific database for domain ontology centric information. This paper describes a version of a simple relational database capable of holding and providing ontology knowledge on demand, which can be implemented on a database management system of choice. </span></p>
On one Approach for Stable Estimate of Technical System Efficiency
Authors: Guseynov Sharif E. , Urbah Alexander I. , Andreyev Sergey A. 
Published: June 2015

<p class="R-AbstractKeywords"><span lang="EN-US">In present paper the problem of efficiency evaluation of technical system by measurable structural design parameters is investigated. To accomplish the purpose of considered problem it is constructed the mathematical model in the form of a finite-dimensional operator equation, where desired elements are both influence weights of the calculated structural design parameters and technical effectiveness indicator of the system. First, the constructed model is reduced to the normal system, and then the apparatus of the ill-posed inverse problem theory is used for the reduced problem: a regularizing operator is constructed and an algorithm for finding the regularization parameter is developed</span><span lang="EN-US">. </span></p>
Analytic-Numerical Modeling and Investigation of Nanostructures' Dynamics on Material Surfaces After Laser Irradiation
Authors: Žaimis Uldis , Guseynov Sharif E. 
Published: June 2015

<p class="R-AbstractKeywords">The work is devoted to modeling the formation and behavior of solid nano-sized particles on the surface of materials. In the simulation, it is assumed that the main processing technology of surface nanostructures is laser irradiation, which causes the Brownian motion of nanoparticles, due mainly to thermal fluctuations: if the temperature around the nanoparticles is uniformly distributed, the time average of the Brownian fluctuations is zero; however, if there is a temperature gradient around the nanoparticles, the thermal fluctuations affect the nanoparticle in different ways from different sides, and there is a force like the thermophoretic force, biasing the average position of the nanoparticle. When building a 1D model of the formation and flow behavior of nanoparticles, three important assumptions are introduced: the impact of nanoparticles on the process of irradiation is negligible; the impact of nanoparticles on each other as compared to the effect of laser irradiation on them is also negligible; and nanoparticles after laser irradiation can move both forward and backward and at every fixed period of time, moving the nanoparticles does not impose any steric constraints. Under the above assumptions, a 1D continuous model is built, implicit and explicit finite difference schemes to solve it are developed; their convergence and order of convergence are studied; an output condition ensuring the stability of the explicit difference scheme is obtained, the unconditional stability of implicit difference scheme is proven, and software for computer implementation of some of the obtained analytical and numerical results developed. </p>
Modeling of time dependent thermal process in sliding electrical microcontact
Authors: Ilyin Alexander , Plokhov Igor , Savraev Igor , Kozyreva Oksana 
Published: June 2015

<p class="R-AbstractKeywords"><span lang="EN-US">Temperature has great influence on mechanical, electrical and chemical processes that occur in transition layer of sliding contact. The aim of the research is creating a three-dimensional finite-element model for calculating time dependent thermal process in sliding electrical microcontact.</span></p><p class="R-AbstractKeywords"><span lang="EN-US">The article starts with the description of the contact element representing a discrete microcontact and physics in it. Then the authors suggest use modern simulation software COMSOL Multyphisics for modeling.</span></p><p class="R-AbstractKeywords"><span lang="EN-US">The developed 3D-model uses modules of electric currents, heat transfer in solids, and electromagnetic heat source for computing. For each module the assumptions, the initial and boundary conditions are made. </span></p><p class="R-AbstractKeywords"><span lang="EN-US">The outcomes of modeling are the transient processes of average overheat in the elements of contact-details surface layers. The transient processes depend on geometric size of the microcontact (size of contact element, height of surface elements, thickness of oxide films, and overlap), contact-details physical properties (density, electrical conductance, thermal conductivity, and heat capacity), external influences (electrical current and friction heat), and temperatures of the neighbor elements.</span></p><p class="R-AbstractKeywords"><span lang="EN-US">The results of the research will be used in the numerical simulation model of sliding electrical contact. </span></p>
Science, Technology and Inclusive growth and development of the society
Authors: Singh Rana Pratap 
Published: June 2015

<p>The last century has witnessed rapid growth in science and technology, which lead the establishment of industrialisation throughout the world and domination of market economy over the agrarian economy. More recently, the knowledge economy has emerged over all others, which is also driven by the emerging areas of science and technology data bases. The rapid industrial and urban growth has resulted to the degraded ecosystems caused by the anthropogenic pollutants and climate change, global warming, deforestation, resource crunch, energy crisis and health hazards are several new threats which have insisted to opt for a sustainable development pathway.</p><p> It has appeared that the role of science and technology for sustainable development, inclusive growth and socio-economic equity needs a thorough review of the existing knowledge and search of new knowledge using interdisciplinary wisdom and skills. This journal will provide such a forum to the students, researchers, professionals, academicians, planners, communicators and administrators globally. In addition to original research papers, short communications and review articles, we have decided to include letters to editor, scientific correspondence, meeting reports and book reviews also in this journal. Contributors may go through the authors guidelines for preparation of their manuscript.</p><p> We believe that this journal will not be just another journal in this field of knowledge, but will fill up a gap existing in the area of science communication to the experts across the various disciplines in science, technology and social sciences.</p>
Assessment and Treatment of Chemotherapy-induced Peripheral Neuropathy- a Physical Therapy Perspective
Authors: Kumar Senthil P , Jamwal Nisha Rani 
Published: June 2015

Chemotherapy is recognized as a mainline treatment for all types of cancer, and its most debilitating and dose-limiting complication is Chemotherapy-induced peripheral neuropathy (CIPN), the mechanisms of nerve damage of which depends upon the specific chemotherapeutic agent used. Use of non-invasive treatment methods such as physical therapy may provide a valuable therapeutic adjunctive option in patients with CIPN. Physical therapy treatment methods had been shown to produce effective symptom control and enhance quality of life in palliative care. A detailed evidence-based update of literature is provided under evaluation and management of CIPN with a special perspective of physical therapy management using a proposed clinical reasoning-based treatment decision making algorithm so that an Ã¢â‚¬Ëœout of the boxÃ¢â‚¬â„¢ self-reflective evidence-informed critical thinking process is applied along a collaborative multidisciplinary biopsychosocial approach.Ã‚Â Keywords: Chemotherapy-induced neurotoxicity; Chemotherapy-induced neuropathy; Physical therapy; Palliative rehabilitation