bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ambivalenzen der Darstellung und Zirkelschlüsse der Interpretation. Die Tanzdarstellung Hiltbolts von Schwangau im ‚Codex Manesse‘ und der Reigen höfischer Tugenden im ‚Roman de la Rose‘
Authors: Zimmermann Julia 
Published: November 2018

AbstractNumerous studies covering courtly dancing and its portrayal in medieval European religious art and literature seem to have, to a large extent, exhausted this subject. Nevertheless, works on courtly dances remain, for the most part, more speculative in nature than apparent at first glance. This is amazing when we consider the importance of courtly dance in literature and art dating from the Middle Ages, as there are only few Middle High German poems in which collective dance is not mentioned. Contrasting with this great number and wide range of references to dance is its small footprint in works dealing with the history of dance. Only a small number of works touch up this issue, and these have only collected and analysed fragments of the source material available. Hence, any conclusions cannot but lack critical depth with regard to the varying degrees of stylisation present, and their importance when attempting to draw comparisons between reports bound by tradition and stereotyped in nature, and those that exhibit greater literariness. This paper aims to discuss these problems and serves as a contribution to the field of the history of dance as reflected in medieval literature.
Computer-Aided Support for the Rapid Creation of Parametric Models of Milling Units for Longwall Shearers
Authors: Bołoz Łukasz , Castañeda Leonel F. 
Published: November 2018

Abstract
The cutting drums are the basic working components of many mining machines. The article focuses on differences in the design of cutting drums depending on the expected working conditions. Then, the unique calculation procedure is presented which allows to determine the load on the unit by reducing the forces acting on a single pick, taking into account the picks bent on the cut-off disc. Until now, this has been omitted in the literature. The results of the calculations for the selected cutting drum performed in MATLAB are also presented. The further section proposes to use Autodesk Inventor Professional's iLogic Tool for quick modelling of cutting drums. The principles of creating parameterized models and compositions using programming elements in the form of iLogic scripts are presented. The articles presented a ready-made units generator, taking into account the possibility to determine values of selected numerical parameters of the unit: diameter, web, number of patches and cutting pitch. The generator also allows you to select the type of pick holders, conical pick types, as well as the choice of pick system for repositioning or matching picks.
Challenges of Industry 4.0 for Production Enterprises Functioning Within Cyber Industry Networks
Authors: Saniuk Sebastian , Saniuk Anna 
Published: November 2018

Abstract
The globalization process and the marginalization of Europe in world production prompted the German economy to implement the Industry 4.0 concept called the fourth industrial revolution. As a part of the proposed concept, a close connection of physical objects with the information network should be made. Enterprises will connect by intelligent resources communicating through the modern Internet of Things technologies, big data, and cloud computing. Therefore modern enterprises have a new further challenge which means a need to build and cooperate within cyber-physical systems. The aim of the article is to present key challenges for Polish small and medium-sized manufacturing enterprises oriented to the cooperation within the Industry 4.0 concept. Furthermore, the results of surveys conducted on a selected group of Polish production companies in the metal sector are shown. These results present the condition of Polish enterprises, their concerns and expectations regarding the implementation of the Industry 4.0 concept. The paper contains also the new idea to create the Cyber Industry Network (CIN) which means a kind of the on-line available platform for exchanging production capacity of small and medium enterprises and allows for the efficient combining of free resources to realize joint production projects.
In Vitro morphological, optical and microbiological evaluation of nanosilver fluoride in the remineralization of deciduous teeth enamel
Authors: Vieira Costa e Silva Amitis , Teixeira Joás Araújo , Mota Cláudia C.B.O. , Clayton Cabral Correia Lins Emery , Correia de Melo Júnior Paulo , de Souza Lima Maria Goretti , Arnaud Manuela , Galembeck André , Targino Gadelha Andrea , Pereira José Ricardo Dias , Gomes Anderson S.L. , Rosenblatt Aronita 
Published: November 2018

Abstract

Background
Nanosilver fluoride (NSF) was developed as an alternative in the prevention of dental caries.

Purpose
The aim of this study was to test the remineralizing action of NSF on incipient enamel caries and its antimicrobial action on the acid production and adhesion of Streptococcus mutans.

Methods
Deciduous enamel fragments were treated with sodium fluoride (NaF), NSF and deionized water. Microhardness, fluorescence spectroscopy and optical coherence tomography imaging were performed on each specimen before chemical caries induction, after caries induction and after 14 days of pH cycling. The treated enamel fragments were also placed into test tubes containing bacterial suspension and saliva. The pH readings and quantification of the adhered microorganisms to the dental enamel were determined. Analysis of variance, Kruskal-Wallis, Mann-Whitney, Tukey and mixed linear regression model were applied.

Results
NSF and NaF were effective in enamel remineralization, with a statistically significant difference (p<0.001) to deionized water, and they had no statistically significant difference between themselves (p>0.005). NSF had greater effectiveness compared to NaF in preventing decreases of pH and adhesion of S. mutans to the enamel surface, with statistically significant (p<0.001) differences.

Conclusion
NSF may be more effective than conventional fluorides in treating incipient caries lesions due to its remineralization and antibacterial actions.
Distribution of naturally occurring radionuclides in soil around a coal-based power plant and their potential radiological risk assessment
Authors: Habib Md. Ahosan , Basuki Triyono , Miyashita Sunao , Bekelesi Wiseman , Nakashima Satoru , Phoungthong Khamphe , Khan Rahat , Rashid Md. Bazlar , Islam Abu Reza Md. Towfiqul , Techato Kuaanan 
Published: November 2018

Abstract
Coal-fly-ash is one of the major byproducts of coal-based power plant in which naturally occurring radioactive materials (NORMs) are drastically enriched compared to those of feed coals. Thus, improper management of fly-ash may introduce additional radioactivity to the surrounding environment and cause radiological risk. So, in order to study the distribution of radionuclides in soil around a coal-based power plant and to evaluate their radiological risk, soil, coal and fly-ash samples were analyzed by using a HPGe detector for U-238, Ra-226, Th-232 and K-40 radioactivity concentrations. Furthermore, soil minerals were also studied by X-ray diffractometer to assess the mineralogical provenance of the radionuclides. Mean radioactivity concentrations (in Bq·kg−1) of U-238, Ra-226, Th-232 and K-40 in soil samples are 102.9±41.4, 63.6±7.4, 103.4±13.9 and 494.2±107.5, respectively which are comparatively higher than the typical world mean value. Elevated levels of radioactivity are likely due to the presence of illite, kaolinite, monazite, rutile and zircon minerals in the soil samples rather than technogenic contributions from the power plant. Furthermore, mean soil contamination factor (CF) are close to unity and mean pollution load index (PLI) is below unity while the average radium equivalent activity (Raeq in Bq·kg−1), external hazard index (Hex), absorbed γ dose rate (D in nGyh−1), annual effective dose rate (E in mSv·y−1) and excess lifetime cancer risk (ELCR in Sv−1) are 249.5±21.7, 0.67±0.06, 114.2±9.4, 0.20±0.02, 4.9×10−4±0.4×10−4, respectively, which are within the permissible limit. Thus, in terms of radioactivity concentrations and associated environmental and radiological indices, the effect of the power plant is insignificant.
Colour and Ink Characterization of Ottoman Diplomatic Documents Dating from the 13th to the 20th Century
Authors: Kantoğlu Ömer , Ergun Ece , Kırmaz Rıdvan , Kalaycı Yakup , Zararsız Abdullah , Bayır Önder 
Published: November 2018

Abstract
This study investigates the colours and inks used in diplomatic documents of the Ottoman Empire dating from the 13th to the 20th century. Elemental and spectroscopic analyses were carried out on more than 150 documents using μ-XRF, Raman and FTIR spectroscopy; 10 documents were selected representatively for each century. In addition to the characterization of colour and ink, their use and distribution through the centuries is discussed. Analysis showed the presence of minium, vermilion, red ochre and cochineal (red pigments); lapis lazuli (ultramarine blue), azurite (blue verditer), Prussian blue and smalt (blue pigments); malachite and green earth (green pigments); massicot and yellow lead (yellow respectively orange pigments) and basic lead carbonate and zinc oxide (white pigments). All illuminations were ornamented with gold to demonstrate the power of the Empire and the Emperor. Texts were written in iron gall- and carbon-based black ink (carbon black/soot), cochineal (red) ink and gold.
Quality of Life and Anxiety in Military Personnel
Authors: Vojvodic Aleksandra , Dedic Gordana 
Published: November 2018

AbstractThe quality of life of military personnel represents their self-evaluation of the quality of their own mental and physical health, social relations, and the environment in which they live and work. The aim of our study was to evaluate the relationship between quality of life and anxiety levels in military personnel of the Serbian Armed Forces.The cross-sectional study included a total of 311 randomly selected professional military personnel (officers, non-commissioned officers and professional soldiers) between 23 and 53 years of age (mean, 35.3±7 years) without current mental health problems. For the purpose of this study, we used the World Health Organization Abbreviated Instrument for Quality of Life Assessment (WHOQOL-BREF) and the Beck Anxiety Inventory (BAI). The statistical analysis included parametric and non-parametric descriptive statistics.Professional military personnel showed high satisfaction with their quality of life in the categories of social relations (82.52), psychological health (82.10) and physical health (81.68), while the satisfaction scores in the category environment category were the lowest (62.77). The average value for the total BAI score was 4.83±5.66. Quality of life decreased, while anxiety increased, with increasing age of the military personnel. Higher BREF score values were associated with lower scores on the BAI questionnaires in all subscales (p<0.001).Military personnel of the Serbian Armed Forces showed a high degree of satisfaction with their own quality of life. Learning techniques to easily overcome everyday stress would reducedreduce anxiety and improve the quality of life in military personnel of the Serbian Armed Forces.
Antitumour Effect of a Mixture of N-Propyl PolysulfidesIn Vitro
Authors: Djordjevic Dragana , Milovanovic Jelena , Jurisevic Milena , Stojanovic Bojana , Cvetkovic Olga , Pergal Marija , Ristanovic Elizabeta , Vojvodic Danilo , Simic Milos , Manojlovic Dragan , Milovanovic Marija , Arsenijevic Nebojsa 
Published: November 2018

AbstractCopper serves as a limiting factor for multiple steps of tumour progression, including angiogenesis, growth and metastasis. High levels of copper have been found in a wide spectrum of human cancers. Antitumour activities of copper-chelating drugs have been reported in animal models. Organosulfur compounds (diallyl sulfide, DAS; diallyl disulfide, DADS; S-ethylcysteine, SEC; N-acetylcysteine, NAC) derived from garlic exhibit marked copper-chelating activity. We analysed a mixture of fifteen n-propyl polysulfides (DPPS) for potential antitumour activity against several murine tumour cell lines, including colon carcinoma (CT26), mammary carcinoma (4T1) and melanoma cell lines (B16F10), and compared the effects with the antiproliferative effect in highly proliferative murine mesenchymal stem cells (mMSCs). The effects of the mixture of n-propyl polysulfides (100%) on cell viability were determined using MTT assays. Cell apoptosis was analysed using Annexin V-FITC/PI assays.The results of the MTT assays indicate that this standardized mixture of n-propyl polysulfides has a strong, dose-dependent cytotoxic effect against all three of the tested tumour cell lines (CT26, 4T1, B16F10). The cytotoxic effect of the n-propyl polysulfide mixture against the CT26 and B16F10 cell lines was much stronger than that of cisplatin and was significantly weaker in mMSCs, which are non-cancerous and highly proliferative cells, than in cancer cells. Flow cytometric analysis of CT26 and 4T1 cells revealed that apoptosis was not the dominant mechanism of cell death induced by the n-propyl polysulfide mixture. The n-propyl polysulfide mixture exerted highly cytotoxic activity against murine colon carcinoma and melanoma cell lines, but its antiproliferative activity against mMSCs was significantly lower than that of cisplatin.
The Impact of the Gene Variants FV Leiden, FII G20210A, MTHFR C677T and PAI-1 4G/5G on Pregnancy Loss in Women from Central Serbia
Authors: Sosic Gordana M. , Sretenovic Snezana , Radivojevic Danijela , Jovic Nikola , Varjacic Mirjana 
Published: November 2018

AbstractThrombophilia is a condition of enhanced functionality of the haemostatic system with an increased tendency for thrombosis, and it can be a congenital, acquired, or complex defect. Pregnancy can be the cause of acquired transitory thrombophilia, which may lead to complications if inherited thrombophilia is also present.The aim of this study was to determine the genetic structure of the population based on the frequency of the gene variants factor V Leiden G1691A, factor II G20210A, methylenetetrahydrofolate reductase C677T, and plasminogen activator inhibitor-1 4G/5G, as well as to investigate the predictive value of these gene variants in repeated miscarriages.The study included 87 female patients from Central Serbia with an average age of 32.7±4.5 years with inherited thrombophilia and previous miscarriages, with or without intrauterine foetal death. The exclusion criteria included the existence of gynaecological and infectious aetiology and the deficit of factors important for the coagulation process.The resulting genotypes were in Hardy-Weinberg equilibrium. The frequency of genotypes with mutated alleles was significantly higher in this group of patients than in the control group for all variants except factor II G20210A. The most commonly mutated alleles were the plasminogen activator inhibitor-1 4G allele (0.61) and methylenetetrahydrofolate reductase T allele (0.47). Double mutation of plasminogen activator inhibitor-1 4G/5G and methylenetetrahydrofolate reductase C677T was dominant in patients with recurrent pregnancy loss (46.15%).The presence of a combination of genetic variants of the plasminogen activator inhibitor-1 4G/5G and methylenetetrahydrofolate reductase C677T is a significant predictor of spontaneous abortions in women with inherited thrombophilia in Central Serbia.
Energy management based on fractional open circuit and P-SSHI techniques for piezoelectric energy harvesting
Authors: Zouari Manel , Naifar Slim , Bouattour Ghada , Derbel Nabil , Kanoun Olfa 
Published: November 2018

Abstract
Self-powered energy management circuits make energy harvesting converters more efficient and more reliable. This paper presents an improvement of a Maximum Power Point Tracking (MPPT) technique applied on a Parallel Synchronized Switch Harvesting on Inductor (P-SSHI) technique for piezoelectric vibration converters. The aims are to detect the unstable vibrational state, optimize the output voltage and maximize the output power of the piezoelectric transducer.
First, the P-SSHI technique is implemented without an MPPT technique. Then, an MPPT technique based on Fractional Open Circuit (FOC) voltage method is implemented. An improvement of the FOC method is proposed to enhance the capability of the Piezoelectric Energy Harvesting (PEH) system. The comparison between different simulation results shows that by using the same input parameters, the maximum efficiency for the PEH system based on the P-SSHI technique implemented without MPPT is 8.82 % whereas the maximum efficiency of the system based on the (FOC) voltage MPPT method is 13.77 %. A significant improvement of the PEH system is obtained by using the modified (FOC) method, where the efficiency reached 24.59 %.
Dual Fabry–Pérot Interferometric Carbon Monoxide Sensor Based on the PANI/Co3O4 Sensitive Membrane-Coated Fibre Tip
Authors: Peng Jin , Feng Wenlin , Yang Xiaozhan , Huang Guojia , Liu Shaodian 
Published: November 2018

Abstract
A novel dual Fabry–Pérot (F-P) interferometric carbon monoxide gas sensor based on polyaniline/Co3O4 (PANI/Co3O4) sensing film coated on the optical fibre end face is proposed and fabricated. Its structure is composed of standard single-mode-fibre (SMF), endlessly photonic crystal fibre (EPCF), and PANI/Co3O4 sensing membrane (PCSM). Therefore, they form three F-P reflectors, the reflector between SMF and EPCF, that between EPCF and PCSM, and interface between PCSM and air. So, the dual F-P interferometer is achieved. The results show that in the range of 0–70 ppm, the interference spectra appear red shift with the increasing carbon monoxide concentration. In addition, the high sensitivity of 21.61 pm/ppm, the excellent linear relationship (R
2 = 0.98476), and high selectivity for carbon monoxide are achieved. The response and recovery time are 35 and 84 s, respectively. The sensor has the advantages of high sensitivity, strong selectivity, low cost, and simple structure and is suitable for sensitive detection of trace carbon monoxide gas.
The Thermodynamic and Binding Studies of Hg+2 Ions with Egg Protein by Polarographic and pH Metric Techniques
Authors: Acharya Shveta , Sharma Arun Kumar 
Published: November 2018

Abstract
The binding of mercury (II) ion has been studied with egg protein at different pH values and temperatures by the polarographic technique. The binding data were found to be pH and temperature dependent. The intrinsic association constants (k) and the number of binding sites (n) were calculated from Scatchard plots and found tobe at the maximum at lower pH and at lower temperatures. The free energy change (ΔG°) of the combining sites were least at the higher pH and highest at the low pH; therefore, a lower temperature and lower pH offered more sites in the protein molecule for interaction with mercury (II) ions. Statistical effects seem to be more significant at lower mercury (II) ion concentrations, while at higher concentrations electrostatic effects and heterogeneity of sites are more significant.
The Making of Islamist-inspired Terrorism and It’s Counter-terrorism in Indonesia
Authors: Arrobi Mohammad Zaki 
Published: November 2018

The study attempts to uncover the making of Islamist-inspired terrorism and its state-led counter-terrorism responses in the modern history of Indonesia. It argues that Islamist-inspired terrorism and its counter-terrorism have been inextricably linked in complex ways within political and historical contexts. Instead of regarding Islamist-inspired terrorism and counter-terrorism as separated and unrelated entities, or perceiving the latter as just response to the former, it suggests that they have been intertwined and shaped each other throughout Indonesia’s modern history. By discussing Islamist-inspired terrorism in the three Indonesian historical periods, namely the resurgence of Darul Islam during 1940-60s, the re-emergence of Darul Islam networks and its series of terrorist attacks in 1980s, and the Jemaah Islamiyah-related terrorist activities in the 2000s as illustrative cases, the study has delineated the ways in which Islamist-inspired terrorism and its state-led counter-terrorism have been bound up within particular political, historical, and sociological context. In addition to that, the study also reveals that both Islamist-inspired terrorism and its state-led counter-terrorism have been shaped by the dynamic interplay of local, national, and global contexts.
This Sacred Moment: Listening, Responsibility, and Making Room for Justice
Authors: Beaton Sadie 
Published: November 2018

When Ingrid Waldron asked me to create and share a summary of the excellent and juicy presentations and discussion at the symposium titled “Over the Line: A Conversation on Race, Place, and the Environment,” held in Halifax on October 27, 2017, I agreed right away. I’d planned to be at the symposium listening carefully and taking notes anyway. Little did I know that I had agreed to share my “hot take” verbally, in front of everyone, immediately after the final presentation! I’m much more comfortable sharing my thoughts on something after I have mulled it over for a day, a week, or—even better—a few months. The short series of small thoughts in this article are the closest I could come to synthesizing my impressions of the day, in that moment. The result is not comprehensive, but I hope it expresses the vulnerable and hopeful mood I was sensing, along with the appetite for deep resistance and change in the room at the end of a whole day of badass idea-sharing.
Rules and Consequences
Authors: Cash Dave 
Published: November 2018

“Every teacher should have a clear set of rules and consequences in their classroom.” “Teachers need to maintain control of their classrooms at all times.” “Students may not show it, but deep down, they all crave structure and order.” In the abstract, it seemed pretty doable. After all, rules and consequences made me feel safe. Why wouldn’t they make my students feel the same way? I soon learned that lots of people really don’t feel the same way about rules and consequences as I had learned to feel when I was young. And, as I have discovered, their resentments are often very well justified.Today, I live in a predominantly Black neighborhood of a predominantly Black city and I teach in a predominantly—and historically—Black school. I belong to a predominantly Black labor union. The culture of New Orleans is rooted in Blackness. I’ve done a lot of work in recent years to understand what my whiteness means in this context. Peers, elders, and students have helped me learn not only what it means to be Black in a racist society but also what it means to be white in a culture built to oppress people of color. As a result, I am increasingly aware of the delicate danger of giving a white teacher authority over Black students. My affinity for rules and consequences weaponizes me in this context. If I am not careful, I have the power to do some real, lasting damage.