bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical Outcomes after Regenerative Periodontal Therapy with Emdogain
Authors: Beresescu Gabriela Felicia , Ormenisan Alina , Szekely Melinda , Monea Monica , Monea Adriana 
Published: July 2017

Abstract

Objective: Regeneration is defined as a reconstruction of a lost part of the body in such a way that the structure and function of the lost tissue are completely restored. The aim of this study is to compare the clinical outcomes of intrabony defects treatment using regenerative periodontal therapy with enamel matrix proteins (Emdogain, EMD) with a control group.

Methods: Ten patients with chronic periodontitis were included in this randomized, controlled clinical study. Two groups received conservative periodontal therapy. In the test group, different teeth received regenerative treatment with EMD. In the control group teeth received solely conservative periodontal therapy. Pocket depth probing (PD) and bone reduction (based on X rays) were registered at baseline and after eight months in both groups. In the control group

Results: Both groups showed a significant reduction of PD. The teeth treated with EMD showed a significant attachment gain. Within the test group, the radiographic examination of the teeth treated with EMD showed no significant change, whereas the teeth in the control group showed significant bone reduction.

Conclusions: Intrabony defects in teeth treaded with EMD exhibit a substantially higher gain in clinical attachment and defect filling. The use of EMD in dental practice can prevent further bone loss.
Letrozole Determination by Capillary Zone Electrophoresis and UV Spectrophotometry Methods
Authors: Rusu Aura , Sbanca Maria-Alexandra , Todoran Nicoleta , Vari Camil-Eugen 
Published: July 2017

Abstract
Objective: Letrozole is a highly potent oral nonsteroidal aromatase inhibitor triazole derivative. The aim of this study was to quantify letrozole from bulk, pharmaceutical formulation, and spiked urine samples by developing a simple, rapid and cost effective capillary electrophoresis method. Methods: A capillary zone electrophoresis method was optimized and validated. Additionally, an UV spectrophotometry method was used for comparing results. Results:The capillary zone electrophoresis method using a 90 mM sodium tetraborate background electrolyte proved to be an efficient method for determination of letrozole in a very short time, less than 2 minutes, using 20 kV voltage, 50 mbar/2 seconds pressure and 50°C temperature as optimum parameters. Additionally, the UV spectrophotometry method proved to be simple and efficient to quantify letrozole from bulk material and pharmaceutical formulation with linearity of response between 5 to 20 μg·mL-1 concentrations. For both methods, validation parameters, including linearity, detection and quantification limits were determined. Also we proved that our electrophoretic method has potential in analyzing letrozole from biological samples, obtaining encouraging results on estimation of letrozole from spiked urine samples without any special treatment. Conclusions: To quantify letrozole from bulk material, pharmaceutical preparations, and spiked urine samples the capillary zone electrophoresis method using a tetraborate sodium background electrolyte has proven to be simple and appropriate. Also a simple UV spectrophotometric method has been developed and validated for the same purposes.
Properties of Expansive Porous Materials Based on Aluminate Cement for Underground Mining
Authors: Klimas Wojciech 
Published: July 2017

Abstract
The paper presents the results of laboratory tests of expansive mineral binding materials based on calcium aluminate with mineral additive and carbonate expander. The expansion size can be controlled by the amount of expander as well as by water-binder ratio. The study describes the method of measuring the expansion size and selected technical parameters of obtained expansive binders together with the proposed scope of their use in underground construction.
Mass Loss of Coal Particles Burning in Fluidized Bed
Authors: Pełka Piotr 
Published: July 2017

AbstractIn this work many conclusions resulting from research carried out on the coal combustion process of the chosen coal type and its accompanying erosion in a two-phase flow of inert material have been presented. The purpose of this flow was to present a model of the conditions of the central and upper zone of the combustion chamber of the fluidized boiler. In the opinion of many authors (Basu, 1999; Chirone et al., 1991), the erosion process results from the contact of a fuel particle with particles of inert material that is responsible for generating fine fuel particles of less than 100 mm. If the particles are in the upper zone of the boiler where there is oxygen deficit, they can increase the loss of incomplete combustion substantially. The results of research do not confirm this common thesis, but rather indicate that the process of comminution that results from erosion under oxidative conditions contributes to the increase of substantial mass loss of a coal particle, however the increased mass loss of particle during combustion is first and foremost due to the whole process of removal of ash from the reactionary surface of a fuel particle. Nevertheless, in the conditions of oxygen deficit the comminution of particles as a result of the erosion process is negligible
Application of Three-Parameter Distribution to Approximate the Particle Size Distribution Function of Comminution Products of Dolomitic Type of Copper Ore
Authors: Nad Alona , Brożek Marian 
Published: July 2017

AbstractThe paper presents the results of analyze the particle size distribution function of comminution products of dolomitic type of copper ore. The breakage tests for single irregular particles were performed with using a hydraulic press device. The authors prepared five particle size fractions of each material, within ranges: 16-18 mm, 18-20 mm, 20-25 mm, 25-31,5 mm and 31-45 mm. The particle size distribution function of single-particle breakage test was calculated separately for each size fraction. In addition, the cumulative particle size distribution function for five particle size fractions was presented. In theoretical part the study of applied functions of particle size distribution for comminution a set of particles and models of crushing single particles was performed. In that paper the curves of the particle size distribution were approximated by the three-parameter function, which parameters depend on the particle strength and material type. For conformity assessment the model distribution function to the empirical distribution function a residual deviation and non-linear correlation coefficient were calculated. The three-parameter function approximating agrees well with the particle size distribution obtained from experimental data. The dependence of the parameters of a particle size distribution function on the dolomite particle strength was presented. The results indicate the identity of single particle grinding mechanism by slow compression of irregular particles of dolomitic type of copper ore, regardless of the initial particle size.
The Analysis of the Water-Expanded Rock Bolts Ruptures During Pressure Test
Authors: Pawłowski Bogdan , Krawczyk Janusz , Bała Piotr , Cios Grzegorz , Tokarski Tomasz 
Published: July 2017

AbstractThis paper describe the investigation of a water-expanded rock bolts failed during pressure test (inner water pressure of 330 bar). A main objective of this work was to determine the cracks nucleation and propagation mechanism. It was found that the rock bolts failure was promoted by presence of non-metallic inclusions (mainly long sulphide inclusions) but the primary cause of cracking is strain ageing of steel. Suggestions for improving the behaviour of steel used for water-expanded rock belts by the modification of its chemical composition are proposed finally.
Is it the Way You Live or the Job You Have? Health Effects of Lifestyles and Working Conditions
Authors: Cottini Elena , Ghinetti Paolo 
Published: July 2017

AbstractThis paper investigates the role of lifestyles (smoking, drinking and obesity) and working conditions (physical hazards, no support from colleagues, job worries and repetitive work) on health. Three alternative systems of simultaneous multivariate probit equations are estimated, one for each health measure: an indicator of self-assessed health, an indicator of physical health, and an indicator of work-related mental health problems, using Danish data for 2000 and 2005. We find that while lifestyles are significant determinants of self-assessed health, they play a minor role for our indicators of physical health and mental health. The effect of lifestyles seems to be dominated by the effect of adverse working conditions, which significantly worsen health. This result is robust for all health dimensions considered.
Labor, Speicher, Bühne: Das Literaturmuseum der Österreichischen Nationalbibliothek
Authors: Manojlovic Katharina 
Published: July 2017

ZusammenfassungDas im April 2015 eröffnete Literaturmuseum der Österreichischen Nationalbibliothek konnte sich als ein Ort der vielfältigen Auseinandersetzung mit Literatur etablieren. Seit April 2016 ermöglichen Sonderausstellungen zusätzliche thematische Schwerpunktsetzungen. Ein eigens entwickeltes Museumstablet bietet Besuchern viele Möglichkeiten der Vertiefung in die Themen und Objekte des Literaturmuseums. Ein umfangreiches Veranstaltungs- und Vermittlungsprogramm gibt zeitgenössischen Diskursen der Literatur ein Podium und macht es außerdem zu einem attraktiven Ort außerschulischen Literaturunterrichts.
Contribution to the lichen flora of North East Greenland. V. Zackenberg and Clavering Ø area
Authors: Hansen Eric Steen 
Published: July 2017

AbstractThe paper lists 202 lichen taxa from Zackenberg and Clavering Ø area, North East Greenland. Ochrolechia androgyna, Psora globifera and Rhizocarpon renneri are new to East Greenland. Sixteen lichen taxa are new to North East Greenland, viz. Aspicilia aquatica, Candelariella dispersa, Chaenotheca furfuracea, Circinaria caesiocinerea, Cladonia libifera, Lecanora cenisia, L. chloroleprosa, L. leptacina, Lichenomphalia alpina, Miriquidica atrofulva, M. nigroleprosa, Ochrolechia alaskana, Peltigera castanea, P. extenuata, Phylliscum demangeonii and Pyrenopsis furfurea.
Determination of serum calcium levels by42Ca isotope dilution inductively coupled plasma mass spectrometry
Authors: Han Bingqing , Ge Menglei , Zhao Haijian , Yan Ying , Zeng Jie , Zhang Tianjiao , Zhou Weiyan , Zhang Jiangtao , Wang Jing , Zhang Chuanbao 
Published: July 2017

AbstractBackground: Serum calcium level is an important clinical index that reflects pathophysiological states. However, detection accuracy in laboratory tests is not ideal; as such, a high accuracy method is needed.Methods:We developed a reference method for measuring serum calcium levels by isotope dilution inductively coupled plasma mass spectrometry (ID ICP-MS), using42Ca as the enriched isotope. Serum was digested with 69% ultrapure nitric acid and diluted to a suitable concentration. The44Ca/42Ca ratio was detected in H2mode; spike concentration was calibrated by reverse IDMS using standard reference material (SRM) 3109a, and sample concentration was measured by a bracketing procedure. We compared the performance of ID ICP-MS with those of three other reference methods in China using the same serum and aqueous samples.Results:The relative expanded uncertainty of the sample concentration was 0.414% (k=2). The range of repeatability (within-run imprecision), intermediate imprecision (between-run imprecision), and intra-laboratory imprecision were 0.12%–0.19%, 0.07%–0.09%, and 0.16%–0.17%, respectively, for two of the serum samples. SRM909bI, SRM909bII, SRM909c, and GBW09152 were found to be within the certified value interval, with mean relative bias values of 0.29%, −0.02%, 0.10%, and −0.19%, respectively. The range of recovery was 99.87%–100.37%. Results obtained by ID ICP-MS showed a better accuracy than and were highly correlated with those of other reference methods.Conclusions:ID ICP-MS is a simple and accurate candidate reference method for serum calcium measurement and can be used to establish and improve serum calcium reference system in China.
Real Time Modeling and Control of Three Tank Hybrid System
Authors: Sathishkumar K. , Kirubakaran V. , Radhakrishnan T. K. 
Published: July 2017

AbstractThis study discusses the modeling and linear quadratic regulator (LQR) controller based closed loop control of a three tank hybrid (TTH) process. A pseudo random binary signal (PRBS) based excitation data obtained from a real time TTH setup is utilized in validating its first principle model (FPM). Based on top and bottom interactions, various modes prevalent are considered based on steady state physical reachability analysis of the TTH for a given input range for controller design. The FPM is linearized using nominal values of process parameters using Jacobians from each existing mode. LQR controllers are designed for each mode. A supervisory structure is designed for selecting estimation model and controller for each appropriate mode. Results from real time servo tracking and disturbance rejection experiments are discussed.
Biologically informed ecological niche models for an example pelagic, highly mobile species
Authors: Ingenloff Kate 
Published: July 2017

AbstractBackground: Although pelagic seabirds are broadly recognised as indicators of the health of marine systems, numerous gaps exist in knowledge of their at-sea distributions at the species level. These gaps have profound negative impacts on the robustness of marine conservation policies. Correlative modelling techniques have provided some information, but few studies have explored model development for non-breeding pelagic seabirds. Here, I present a first phase in developing robust niche models for highly mobile species as a baseline for further development. Methodology: Using observational data from a 12-year time period, 217 unique model parameterisations across three correlative modelling algorithms (boosted regression trees, Maxent and minimum volume ellipsoids) were tested in a time-averaged approach for their ability to recreate the at-sea distribution of non-breeding Wandering Albatrosses (Diomedea exulans) to provide a baseline for further development. Principle Findings/Results: Overall, minimum volume ellipsoids outperformed both boosted regression trees and Maxent. However, whilst the latter two algorithms generally overfit the data, minimum volume ellipsoids tended to underfit the data. Conclusions: The results of this exercise suggest a necessary evolution in how correlative modelling for highly mobile species such as pelagic seabirds should be approached. These insights are crucial for understanding seabird-environment interactions at macroscales, which can facilitate the ability to address population declines and inform effective marine conservation policy in the wake of rapid global change.
Sarcomatoid Squamous Cell Carcinoma of the Penis – a Report of Two Cases
Authors: Bachurska Svitlana Y. , Antonov Petar A. , Staykov Dmitriy G. , Dechev Ivan Y. 
Published: July 2017

AbstractBackground:Sarcomatoid (spindle cell) squamous cell carcinoma is a rare, highgrade, aggressive tumor consisting of the squamous cell carcinoma admixed with the malignant spindle cell (sarcomatoid) elements. These tumors are relatively uncommon in the genitourinary system and particularly in the penis.Materials and methods:Two sarcomatoid squamous cell carcinomas of the penis were diagnosed in our hospital between 2012 and 2015. Clinical histories, pathology reports, hematoxylin and eosin-stained and immunohistochemical slides were reviewed.Results:In both cases, the tumors presented as single, pedunculated, extensive masses with surface ulceration; histology study showed a mixture of high-grade squamous cell carcinoma component and spindle cell neoplastic component in different proportions. Immunohistochemical stains of CK AE1/AE3, p63 and CK903 showed positive immunoreactivity in both components in both cases. Vimentin was positive in spindle cell component and negative in squamous cell carcinoma areas.Conclusion:Sarcomatoid squamous cell carcinoma of the penis is an uncommon tumor of this site with aggressive behavior and bad prognosis which might be related to the delay in medical examination and diagnosis. A correct and thorough morphological study is of great importance for the staging of the disease, treatment and follow up of patients.
Modulating Effects of Cholecalciferol Treatment on Estrogen Deficiency-Induced Anxiety-Like Behavior of Adult Female Rats
Authors: Fedotova Julia , Zarembo Daria , Dragasek Jozef , Caprnda Martin , Kruzliak Peter , Dudnichenko Tatyana 
Published: July 2017

AbstractBackground:Vitamin D can be one of the candidate substances that are used as additional supplementation in the treatment of anxiety-related disorders in women with estrogen imbalance.Materials and methods:The aim of the present study was to examine the effects of chronic cholecalciferol administration (1.0, 2.5 or 5.0 mg/kg/day, s.c.) on the anxiety-like behavior and monoamines levels in the rat hippocampus following ovariectomy in female rats. Cholecalciferol was given to ovariectomized (OVX) rats and OVX rats treated with 17β-estradiol (17β-E2, 0.5 μg/rat, s.c.). The anxiety-like behavior was assessed in the elevated plus maze (EPM) and the light-dark tests (LDT), locomotor and grooming activities were assessed in the open-field test (OFT).Results:Cholecalciferol in high doses alone or in combination with 17β-E2-induced anxiolytic-like effects in OVX and OVX rats treated with 17β-E2as evidenced in the EPM and LDT tests, and increased grooming activity in the OFT test. We found that DA and 5-HT levels increased while 5-HT turnover in the hippocampus decreased in these groups of OVX rats.Conclusion:Our results indicate that cholecalciferol in high doses has a marked anxiolytic-like effect due to an increase in the monoamines levels in the experimental rat model of estrogen deficiency.
Enzymatic Hydrolysis of Water Extractable Polysaccharides from Leaves of Plantago major L.
Authors: Lukova Paolina K. , Karcheva-Bahchevanska Diana P. , Bivolarski Veselin P. , Mladenov Rumen D. , Iliev Ilia N. , Nikolova Mariana M. 
Published: July 2017

AbstractBackground:Plantago majorL. leaves have been used for centuries by the traditional medicine in the treatment of infectious disorders of the respiratory, urinary and digestive tracts. Researchers have reported that hot water extracts ofPlantago majorpossess a broad-spectrum of anticancer, antioxidant and antiviral activities, as well as activities which modulate cell-mediated immunity. Their beneficial properties may be due to the significant content of polysaccharides. The polysaccharides that have been isolated from the leaves ofPlantago majorL. have different structures – pectic substances, galactans, arabinogalactans, glucomannans.Aim:The aim of this paper was to study the correlation between the structure of the water extractable polysaccharides isolated fromPlantago majorL. leaves and their enzymatic hydrolysis with different carbohydrate hydrolases.Materials and methods:The hydrolysis reactions were performed with the enzymes hemicellulase and mannanase. Spectrophotometric total reducing sugars assay was used to examine the hydrolysis yield. The monosaccharide and oligosaccharide compositions were determined using HPLC analysis.Results:The highest hydrolysis yield of the water extractable polysaccharides fromPlantago majorleaves was obtained by treatment with hemicellulase. The hydrolysis yield increased with the augmentation of the ratio of enzyme to polysaccharide. Galactose was the prevalent monosaccharide identified in the composition of the isolated polysaccharides. Oligosaccharides with different degree of polymerization were also detected.Conclusion:The enzymatic hydrolysis of water extractable polysaccharides fromPlantago majorleaves allows us to obtain different types of oligosaccharides with beneficial effects on both human health and industry.
Improvement of Gel Properties of Fish Gelatin Using Gellan
Authors: Petcharat Tanyamon , Benjakul Soottawat , Hemar Yacine 
Published: July 2017

Abstract
The impact of gellan (GL) at different levels (5–20 % of total solid) on the properties of fish gelatin (FG) gels was studied. Gel strength and hardness of FG/GL mixed gel increased, while springiness and cohesiveness decreased as the levels of GL were increased (p < 0.05). Gelling and melting temperatures also increased with increasing levels of GL incorporated (p < 0.05). L*- and b*-values of FG/GL mixed gel decreased, whereas ∆E*-value increased with increasing GL levels (p < 0.05). Microstructure studies revealed that denser structure with very small voids in gel network was observed upon GL addition. The addition of GL at a low level (5 %) had no adverse effect on sensory property, and no effect on syneresis of FG/GL mixed gels. Therefore, the addition of 5 % GL can be used to improve gelling property of FG via increasing gelling points without affecting sensory property of the resulting gel.
External Knowledge Sourcing and Innovation Processes in Modern Economic Environment
Authors: Roszkowska Dorota 
Published: July 2017

AbstractIn an open and digital economy where ICTs, global networks and innovation systems play a key economic role, knowledge used by companies is increasingly gathered using different external sources. Rapidly changing technology enables companies to use new ways to innovate. New innovation processes permit companies to reduce risk and the costs of innovation. New paradigms, called open innovation and co-innovation, allow organizations to remain innovative in a rapidly changing environment. The objectives of this paper are: to provide a better understanding of open innovation and co-innovation paradigms and to suggest instruments for organizations to benefit from co-innovation ecosystem.Internet empowered ICT tools can be the first step for an organization to initiate implementation of a digital strategy. To gain incremental, tacit, organizational knowledge or marketing skills, a new innovation strategy should involve networking through social networks and virtual communities. Digitalization of innovation activities constitutes a new important role for innovation networks and ecosystems, including global innovation networks, as knowledge and technology are no longer owned by a single firm or country. This paper attempts to prepare the theoretical background, for empirical studies on the impact of new innovation processes on company innovation and their competitive advantages. The study is descriptive and analytical, building on the theory and empirical results of previous studies on new, digital innovation models.
The imaginaries of the Eurasian Union: discursive construction of post-Soviet transnationality in Russia and Kazakhstan
Authors: Ryazanova-Clarke Lara 
Published: July 2017

AbstractCouched in the critical discourse studies perspective and developing the notion of political imaginary, this article explores the imaginaries of the transnational integration project of the Eurasian Union that are produced in elite discourses in its two key states, Russia and Kazakhstan. The corpus used comprises transcripts of the two states’ parliamentary discussions and speeches by presidents Putin and Nazarbaev. The article focuses on meaning construction through the discursive types, strategies, and topoi employed in the discourses of the new Union, and the linguistic forms called upon for their articulation. Two discursive strands narrating the Eurasian Union are singled out – the