bluuebunny/crossref_metadata_2025 huggingface dataset:
Spectral and Imaging Observations of a Current Sheet Region in a Small-scale Magnetic Reconnection Event
Authors: Xue Zhike , Yan Xiaoli , Yang Liheng , Wang Jincheng , Feng Song , Li Qiaoling , Ji Kaifan , Zhao Li
Published: April 2018

We report a possible current sheet region associated with a small-scale magnetic reconnection event by using the spectral and imaging observations of the Interface Region Imaging Spectrograph (IRIS) and the magnetograms obtained by the Solar Dynamics Observatory on 2016 August 08. The length and width of the current sheet region are estimated to be from 1.4 ± 0.1 Mm to 3.0 ± 0.3 Mm and from 0.34 ± 0.01 Mm to 0.64 ± 0.09 Mm, respectively. The evolutions of the length of the current sheet region are positively correlated with that of the width. These measurements are among the smallest reported. When the IRIS slit scans the current sheet region, the spectroscopic observations show that the Si iv line is broadened in the current sheet region and the plasma has a blueshifted feature at the middle and a redshifted feature at the ends of the current sheet region. The maximum measured blueshifted and redshifted Doppler velocities are −20.8 ± 0.9 and 34.1 ± 0.4 km s−1, respectively. Additionally, the electron number densities of the plasma in the current sheet region are computed to be around 1011 cm−3 based on the spectrums of the two O iv lines. The emergence, movement, and cancellation of a small sunspot with negative polarity are observed during the formation and shift of the current sheet region. We suggest that the occurrence and evolution of the magnetic reconnection are driven by the movement of the small sunspot in the photosphere.
Host acceptance by three native braconid parasitoid species attacking larvae of the Mexican fruit fly, Anastrepha ludens (Diptera, Tephritidae)
Authors: Ayala Amanda , Pérez-Lachaud Gabriela , Toledo Jorge , Liedo Pablo , Montoya Pablo
Published: April 2018

We studied the oviposition and host acceptance behavior of three braconid parasitoid species native to Mexico, Doryctobraconcrawfordi (Viereck), Opiushirtus (Fischer), and Utetesanastrephae (Viereck), with potential to be considered as biocontrol agents against tephritid fruit fly pests in the Neotropics. Third instar larvae of Anastrephaludens (Loew), with and without previous parasitization by conspecifics, were simultaneously offered to females of each species, and the individual behavior was video recorded to construct oviposition flow diagrams. The patterns of foraging and host acceptance were similar in the studied species; all rejected mostly parasitized hosts suggesting that this strategy is common in the guild of larval parasitoids attacking Anastrepha spp. The complete searching and host acceptance process took 2.2 ± 0.1 min (mean ± SE) in D.crawfordi, 1.7 ± 0.1 s in U.anastrephae and 1.5 ± 0.1 s in O.hirtus. Notably, because of toxins injected by parasitoid females during oviposition, the parasitized hosts experienced a transient paralysis of variable duration. Hosts attacked by U.anastrephae remained immobile for the shortest time (12.5 ± 1 min) (mean±SE), followed by D.crawfordi (20.5 ± 3.4 min) and O.hirtus (24.1 ± 2 min). Our data revealed a notable discrimination ability in all three species, and that behavioral differences lay mainly in the time of parasitization and in the duration of paralysis experienced by attacked hosts. This suggest that the three species could be valuable as biocontrol agents, but additional studies are necessary to better understand the advantages and limitations of each one as natural enemies of fruit fly pests.
Neotype designation for Anaphes brevis Walker (Hymenoptera, Mymaridae)
Authors: Huber John T.
Published: April 2018

A neotype for Anaphesbrevis Walker (Hymenoptera: Mymaridae) is designated from among specimens reared in a laboratory culture on Lygus sp. (Hemiptera: Miridae). Based on specimens examined, the distribution of A.brevis extends west-east from UK (Wales) apparently as far as China and north-south from Germany to Morocco. The species also apparently occurs in North America.
Studies on Integrated Waste Management in County Mehedinti
Authors: Ciobanu Mariana , Ghermec Olimpia , Bucse Ionela Gabriela
Published: April 2018

This paper studies the integrated waste management in Mehedinti county. Integrated waste management requires employing several waste control and disposal methods such as source reduction, recycling, re-use, incineration, and land filling, to minimize the environmental impact of commercial and industrial waste streams. Although integrated waste management is designed as a large-scale system, there are things you as an individual can do to support the system.
Technique of Using the “Voyage Planning” Concept for the Logistic Integration of Inland Waterway Transport
Authors: Ghiba Mihai Gheorghe , Dubovan Lidia
Published: April 2018

The option of choosing to continue the route of goods arriving on waterway routes and have destinations within its territory and vice versa of internal waterways depends on many factors. We intend to analyze the optimizing conditions of inland waterway transport so that the line of route connections integrate inland water transport as a viable advantageous option. Inland waterway transport accounts for about 7 to 9% of all goods transported within the European territory, the growth opportunity being viable only if this option of transport substantially reduces its weak parts that determine orientation to car or railway transportation. We have to observe carefully the causes of low mobility generated by waterway routes, speed and rhythm of transport streams to different destinations, quality and timeliness of the service provided, the active involvement and integrated of ports as logistic hubs essential in the combined transport of goods. An important step that can generate growth of inland water transport option is how they respond to the request of transport based on development of voyage planning concept, objective that we try to detail in all aspects.
Competencies for Inland Navigation Crew of LNG-Fueled Ships
Authors: Savu Sorin Vasile , Benga Gabriel Constantin , Ciupitu Ion , Olei Bebe Adrian
Published: April 2018

This paper intends to submit the necessary skills they must possess personnel on ships powered by LNG at both operational level (OL) and management level (ML). The study is intended as a complement to the relevant tables developed in previous projects such as STCIN and Platina Tables of Competencies.
Optimization for Materials Selection and its Importance in a Management Performance
Authors: Demian Mihai , Grecu Luminita , Demian Gabriela
Published: April 2018

The complexity and importance of the management activities, and implicitly decision-making activities requires in the current period, the use of modern techniques and methods, very well scientifically founded. A power plant management activity involves making decisions based wealth of information and often involve the most varied criteria: technical, economic, environmental and others. Using methods of multi-criteria decision becomes an indispensable decision factor. In this paper, we apply such a method for prioritizing namely Onicescu method in solving the problems as the optimal choose of materials for the realization of thermal to a superheater. Are analyzed three materiale10CrMo9-10, 13CrMo4-5, 16Mo3 taking into account criteria such as technical resistance duration, creep limit, cost and others.
Aspects about the Quality Control at First Article Inspection (FAI) for Parts Obtained by Materials Composites Used in the Railway Sector
Authors: Pascu Cristina Ileana , Gheorghe Stefan , Popa Dragos , Popa Ovidiu
Published: April 2018

In the railway sector, on the prototyping phase of product made by composite materials, it is necessary the implementation of a strict quality control using the instrument First Article Inpection (FAI). In this paper some of the most important steps in quality control implementation of FAI for composite parts at the prototyping parts made of composite materials in the railway field are presented. Thus, the necessary steps for developing FAI and the process diagram are given. Also, the method FMEA process is presented in order to eliminate the risks of errors and defects during the development of the technological process for obtaining the composite piece.
Implementing an Online Marketing Strategy for an IT Company
Authors: Popescu Mirona Ana Maria , Miroslav Silviu Valentin
Published: April 2018

This paper aims to introduce an innovative integrated online feedback tool to gather user-generated information from the online visitors of a company’s website. In this particular example, are presented the benefits of adopting such a tool in the case of an IT company. As growth can be obtained only through customer satisfaction, this tool would enable the Company’s decision-makers to have real-time access to information on their clients’ feedback. With the help of the online reviews, a new kind of marketing and communication emerged, that helps filling the gap between the old traditional review to a viral form of feedback that can increase exponentially the value of a business. Online reviews are one of the biggest aspects for any business that wants to take control and keep a good online reputation. Reviewing has entirely changed the face of the online marketing since the Internet caused a revolution in selling. Reviewing allows businesses to be active and positive regarding the participation of the consumers, and gives them a solid foundation for creating a relationship between the consumer and the business
Business Marketing, Sales and Promotion - Field Receptive to Expert Systems Technology
Authors: Vasile Tomiță Constantin , Popescu Luminița , Dăniasă Cora Ionela , Iancu Anica , Popescu Virgil
Published: April 2018

Most prosperous companies understand marketing activity, not as separate function but as a philosophy to be endorsed by the entire organization. The marketing department is responsible to identify the categories of consumers and the needs that the company can meet profitably, as well as how to achieve this goal, compared to those performed competition. Identifying appropriate benefits is very important for the future success of the project. If an expert system solves a problem whose losses are already known, it is easy to estimate the value of future benefits.Costs and benefits must be justified for lifelong expert system.The cost is justified for each phase of development.The benefits provided are studying, face to face with costs at every stage.
Obtaining of Biopolymer from Onion Used as a Binder in Powder Injection Molding Process
Authors: Dumitru Mihaela Gabriela , Teișanu Cristina , Gîngu Oana
Published: April 2018

The very important strategy in parts processing by powder injection molding (PIM) technology is the use of organic polymeric materials made from raw and auxiliary materials and from renewable natural sources. Using natural polymers to obtain binders for PIM use is of particular interest. The inulin extraction from the onion bulbs has a major alternative in this area.
Resistance Spot Welding of some Sintered Steels
Authors: Nicolicescu Claudiu , Nicoară Victor Horia , Gugilă Mădălina Olga
Published: April 2018

The aim of the paper is to study the possibility of welding some sintered steels, which were obtained from mixtures of iron with different concentrations of graphite powders (between 0.2 and 0,8% weight). The sintered steels were resistance spot welded using different parameters and were investigated by optical microscopy in order to study the evolution of microstructures of the welded areas and base materials. There were perform studies regarding the evolution of microhardness respectively the evolution of tensile strength too.
The Influence of the Ratio of Precursors on the Powdered Product of Plasmodynamic Synthesis in the System Ti-B
Authors: Gerasimov Dmitriy , Pogorelova Sophia , Tsimmerman Alexander
Published: April 2018

The present work reported a novel way of making nanocrystalline Ti-B phases (titanium boride and titanium diboride) in a hypersonic plasma jet. According to the purpose to synthesize nanosized Ti-B phases, experiments with different mass proportions of precursors were implemented. The optimal ratio of precursors, which leads to the yield of titanium diboride is 93.2% and the average particle size, doesn`t exceed 56.1 nm, is the ratio of Ti: B of 26.7: 73.3.
Studying the Moulding Ways for the Metal Powdered Aluminum Reinforced with Carbon Fiber in the Spark Plasma Sintering Process
Authors: Sivkov Alexander , Ivashutenko Alexander , Shanenkova Yuliya , Polovinkina Julia
Published: April 2018

Aluminum and its alloys are used in many industrial areas, science and technology. Such materials are especially widespread in the aviation and automotive industries. Nonetheless, the usage of aluminum is somewhat limited for constructive purposes, due to its relatively low strength characteristics. Recently, the usage of aluminum reinforced with various materials, in particular with carbon fiber, has become an urgent issue. The choice of carbon fiber as reinforcing material is explained by its unsurpassed strength characteristics (more than that of the best steel grades), as well as by high level of thermophysical properties. Summarizing the properties of aluminum and carbon fiber in one material, it is necessary to expect the obtaining a unique material with a unique set of physical-mechanical and thermal characteristics. This paper shows the possibility to obtain dense bulk aluminum-carbon samples by means of spark plasma sintering from the point of the microstructure. The paper presents 3 different moulding ways of composites consisted of the powdered material reinforced with carbon fiber. It is shown that the densest structure with a uniform distribution of all elements in the sample is formed by using an additional easily removable liquid phase (isopropyl alcohol).
Dependence of the Product's Phase Composition on the Ratio of Precursors in Plasmadynamic Synthesis of Silicon Carbide
Authors: Sivkov Artur A. , Nassyrbayev Artur , Gukov Maksim
Published: April 2018

In this work, the powder of nanoscale cubic SiC was obtained by the plasmodynamic synthesis in a coaxial magnetoplasma accelerator (CMPA) with a graphite central electrode and an accelerator channel. The synthesis method allows obtaining a product with a high content of nanoscale cubic silicon carbide. The work is aimed to study the influence of the precursor’s ratio on the product. The synthesized products were analyzed by X-ray diffraction and transmission electron microscopy.
Correlation between 3D Texture of Steel Substrate and TiN-Coated Surface with Various Coating Masses
Authors: Belov Valery , Gubarev Evgeny , Begletsov Danil , Papshev Andrey , Gofman Nina
Published: April 2018

When producing thick Class II hot-dip tin coating, surface texture becomes smoother and more uniform. Amplitude characteristics of surface texture Sa, Sq and the core void volume (Vvc) decrease, number of surface peaks (characteristic Sds) decrease dramatically. These result from Sn particles filling in the surface irregularities. When producing thinner Class I hot-dip tin coating, characteristics of surface texture Sa, Sq increase, characteristic Sds slightly decreases, and characteristic Vvc slightly increases. These changes can be explained by the fact that Sn particles settle more efficiently onto peaks of irregularities. When producing very thin electrolytic coatings, the steel substrate and coating have identical surface textures for coating mass up to 3.42 g/m2.
Photoluminescence of LiF Crystals Doped with Oxygen-Containing Impurities
Authors: Korepanov Vladimir I. , Petikar Pavel V. , Ge Guang Hui , Lipovka Anna A.
Published: April 2018

The aim of this paper is to study the photoluminescence spectra and photoluminescence excitation spectra in LiF-O, LiF-WO3and LiF-TiO2crystals at 20-300 K. It is shown that the luminescence centers in LiF-WO3and LiF-TiO2crystals are oxygen ions O2-disturbed by defects. Two absorption bands within 6-4.5 eV and two luminescence bands with maxima at 3.1 eV and 2.64 eV correspond to these centers. The absorption and emission spectra of the oxygen center (3.1 eV luminescence band) are close to those for the (O2-- Va) center.
Ore Mineralization of the Epithermal Samolazovskoe Gold-Ore Deposit, Aldan Shield (Russia)
Authors: Leontev Vasilii Ivanovich , Chernigovtsev Konstantin
Published: April 2018

The Samolazovskoe gold-ore deposit is located in the Central Aldan ore district (Russia) within the Yukhta multiphase volcano-plutonic massif, consisted of rocks of the monzonite-syenite formation (J3–K1). Four hydrothermal-metasomatic mineral parageneses are distinguished in the deposit: skarn, developed at the contact of syenites and rocks of the carbonate cover (V–Є); gumbeite, superimposed on the rocks of the intrusive massif; feldspatholite, developed in granite gneisses of the crystalline basement (PR) at their contact with the intrusive massif; ore-bearing fluorite–roscoelite–carbonate–quartz, superimposed on all above-mentioned types of mineralization. The main types of mineralization in the Samolazovskoe deposit are the following: (1) vein-disseminated linear type (now recovered in full volume); (2) vein-disseminated stockwork type; and (3) breccia-like type. Vein-filling minerals of the ores are quartz, fluorite, roscoelite, and carbonate. The main ore minerals are pyrite and marcasite; the secondary ones are bournonite, fahlore, sphalerite, galena, and chalcopyrite. Coloradoite and calaverite are less common; native gold occurs very rarely. Pyrite and marcasite are characterized by the following impurities (wt%): Sb (0.64–1.90), As (0.94–5.25), Te (1.02–3.82), and V ( 0.21–0.31).
Sulfur Isotopic Composition of Sulfides of the Au-Te Ore Mineralization in Podgolechnoe and Samolazovskoe Gold-Ore Deposits (Aldan Shield, Russia)
Authors: Rusinova Nataliya , Leontev Vasilii Ivanovich
Published: April 2018

This work presents the results of an analysis of the sulfur isotopic composition of pyrites from different metasomatic rocks of the Samolazovskoe and Podgolechnoe (Central Aldan ore district) deposits. The sulfur isotopic ratio of pyrite from ore-bearing metasomatic rocks of the Podgolechnoe deposit is characterized by δ34S values varying in a range from –1.8 to –5.5 ‰; that of pyrite from the Samolazovskoe deposit is in a range from –6.9 to –12.3‰. This is in agreement with the suggestion that a magmatic source made a significant contribution to the formation of the ore-forming fluid.
Effect of Dual Surface Cooling on the Temperature Distribution of a Nuclear Fuel Pellet
Authors: Joseph Odii Christopher , Bonah Agyekum Ephraim , Afornu Bright Kwame
Published: April 2018

Heat removal from nuclear reactor core has been one of the major Engineering considerations in the construction of nuclear power plant. At the center of this consideration is the nuclear fuel pellet whose burning efficiency determines the rate of heat transfer to the coolant. This research, focuses on the study of temperature distribution of solid fuel, temperature distribution of annular fuel with external cooling and the temperature distribution of annular fuel with internal and external cooling. We analyzed the different distribution and made a conclusion on the possibility of improving temperature management of Nuclear fuel rod, by designing fuel pellets based on this geometrical and thermal Analysis. To date, a lot of studies has been done on the thermal and geometrical properties of Nuclear fuel pellet, it is observed that annular fuel pellet with simulteneous internal and external cooling can achieve better temperature distribution which leads to high linear heat generation rate, thus generating more power in the design [1]. It has also been observed that annular fuel pellets has low fission gas release [10]. In large LOCA, the peak cladding temperature of annular fuel is about 600 which is significantly less than that of solid fuel (920 ), this is due to the fact that annular fuel cladding has lower initial temperature and the thinner annular fuel can be cooled more efficiently than the solid fuel. One of drawbacks of annular fuel technology is “the fuel gap conductance assymmetry” which is caused by outward thermal expansion, it has a potential effect on the MDNBR (Minimum Departure from Nucleate Boiling Ratio), which is the minimum ratio of the critical to actual heat flux found in the core [10]. In this model, we used the ceramic fuel pellet of UO2 as our case study. All the parameters in this model are assumed parameters of UO2. The Heat Transfer tool (ANSYS APDL) was used to validate the Analytical Model of this research.
Effect of Radiation Transport on Minimal Sparkplug Ignition Energy of Nanosized Coal-Dust Suspension
Authors: Moiseeva Kseniya M. , Krainov Aleksey Yu.
Published: April 2018

In this paper we consider a numerical investigation on sparkplug ignition of nanosized coal-dust suspension in the air. The aim of the research is to determine the effect of radiation transport on minimal sparkplug ignition energy of a coal-dust suspension. The paper provides the data on the sparkplug ignition energy dependence on the suspension emissivity factor and coal-dust content.
Effective Modernization of the Optical Irradiating System in Greenhouse
Authors: Baktybaev Azamat , Turanov Sergei B. , Romanenko Sofia , Toleutaev Kanat
Published: April 2018

The paper represents the results of the effective lighting introduction based on LED technology on the basis of a green house. It is shown that in order to reduce electricity costs, as well as increase yields, it is necessary to replace traditional sodium lamps with LED lighting lamps. Based on the results obtained, mathematical calculations confirm the above statement.
Uniaxial Stress and Electron Irradiation Effects on Nanochains Straightening in Film Polymer Materials
Authors: Voronova Nataliya A. , Kupchishin Anatoliy I. , Niyazov Marat N. , Lisitsyn Victor M.
Published: April 2018

Effects of uniaxial stress, temperatures and electron irradiation on nanochain straightening in film polymer materials (polytetrafluoroethylene and lavsan) have been studied comprehensively. Essential change in material behavior including chain straightening was found in strain (e) – stress (s) curves.
Estimation of Local Elastic Moduli of Carbon-Containing Materials by Laser Ultrasound
Authors: Shibaev Ivan A. , Morozov Dmitry V. , Dudchenko Oleg L. , Pavlov Ilya A.
Published: April 2018

The elastic properties of two carbon-containing materials are investigated. Shungite rock is a natural nanocomposite; isotropic pyrolytic graphite is an artificial material. Precision measurement of the local velocities of longitudinal and shear waves propagating in shungite and isotropic pyrographite samples was performed by laser ultrasonic techniques. Young's modulus, the shear modulus and Poisson's ratio are calculated, and the chemical composition of the samples is given.
L’héroïsme de la femme dans l’épopée africaine : un regard critique de Soundjata ou l’épopée mandingue, Emperor Shaka The Great : A Zulu Epic et Nsongo’a Lianja : l’épopée nationale des Nkundo
Authors: Mukenge Arthur , Nkaongami Josue B.
Published: April 2018

The Heroism of women in the African Epic: A critical analysis of Sundiata or the mandingo Epic, Emperor Shaka The Great: A Zulu Epic and Nsongo’a Lianja: The national Epic of the Nkundo. In African epics, female figures perform salient heroic roles that are, unfortunately, not widely recognised and celebrated, as notions of bravery and heroism are understood from a male perspective. Against this backdrop, this study adopts new critical and conceptual approaches to interrogate existing narratives, discourse and ideas on/or about female heroism. By focusing on selected epics, this work incorporates perceptions about women in folktales whose themes comment and reflect on the presentation of female characters and the roles they execute in society. The present contribution critically examines the role of supernatural forces in female characters’ commitment and heroism; not only protecting Soundiata, Shaka, and Lianja in accomplishing their destinies but also showcasing the activities, traditions, belief systems and culture of the Mandingo, Zulu, and Mongo in their respective societies.
Management perceptions regarding factors impacting privatisation of parastatals in a developing country
Authors: Mazibuko Noxolo E. , Smith Elroy E. , Tshuma Eddie
Published: April 2018

Background: Worldwide, the ownership of public organisations has been transferred to the private sector through privatisation. The poor performance of public organisations has necessitated privatisation of these organisations. Aim: This article explored management perceptions regarding factors impacting the privatisation of parastatals in a developing country, namely Zimbabwe. Setting and method: A comprehensive literature study provided the theoretical framework for this research. Primary data were collected by means of a survey obtaining 301 self-administered structured questionnaires from 27 parastatals in Zimbabwe. Seven null-hypotheses were tested using advanced statistical techniques such as regression and correlation analyses. Results and conclusions: Factors identified in this study that could impact privatisation of parastatals in Zimbabwe are stakeholder consultation, stable macroeconomic conditions, government transparency and a well-developed privatisation process plan. If privatisation is implemented effectively, it could lead to increased organisational performance, effective governance and economic empowerment. It also appeared that variables such as union consultation, role ambiguity, political intervention, attractiveness to foreign investment and government commitment do not exert a significant influence on perceptions of privatisation. Practical guidelines were also provided to enhance the implementation of privatisation in parastatals.
The subjective well-being of day labourers in South Africa: The role of income and geographical location
Authors: Blaauw Phillip F. , Botha Ilse , Schenck Catherina
Published: April 2018

Background: The informal economy in South Africa provides employment to large numbers of people who would otherwise have no opportunity to earn a living. Yet informal activities, such as day labouring, generate highly uncertain returns. Although it seems reasonable to conclude that day labourers would be dissatisfied with their lives, this is not necessarily the case as several factors contribute to people’s subjective well-being. Aim: This study is in response to a call for more research on the subjective well-being of marginalised groups in South Africa’s informal labour market. Setting: The day labour market in South Africa, whose members congregate at hiring sites hoping to be picked up by passers-by in need of temporary, casual workers. Methods: Using Sen’s Capability Approach, the study builds on earlier research conducted on the general well-being of day labourers in South Africa, with specific focus on their subjective well-being and geographical location. The results from a countrywide survey of 3830 day labourers were used in a regression analysis to compare the subjective well-being among day labourers across the nine provinces of South Africa. Results: There are statistically significant differences in the well-being of day labourers across the nine provinces. Economic variables play a role in both objective and subjective measures of well-being, while attitudinal and comparison variables are significant for the objective and subjective measures, respectively. Conclusions: Although they have to operate in harsh conditions, day labourers in South Africa display agency by choosing to migrate to richer provinces in search of greater economic opportunity and reward. However, these potential gains are often negated by increased levels of competition and thus depressed wage levels. How to nurture marginalised groups’ abilities to exercise agency and take more control of their lives represents fertile ground for researchers in future.
O-Minimality and its Applications to Number Theory and Analysis
Authors: Kaiser Tobias , Pila Jonathan , Speissegger Patrick , Wilkie Alex
Published: April 2018

The workshop brought together researchers in the areas of o-minimal structures, analysis and number theory. The latest developments in o-minimality and their applications to number theory and analysis were presented in a series of talks; one focus, in particular, was on the Pila–Wilkie Theorem and its impact on diophantine problems.
Stochastic Analysis: Geometry of Random Processes
Authors: Guionnet Alice , Hairer Martin , Miermont Grégory
Published: April 2018

A common feature shared by many natural objects arising in probability theory is that they tend to be very “rough”, as opposed to the “smooth” objects usually studied in other branches of mathematics. It is however still desirable to understand their geometric properties, be it from a metric, a topological, or a measure-theoretic perspective. In recent years, our understanding of such “random geometries” has seen spectacular advances on a number of fronts.
Reaction Networks and Population Dynamics
Authors: Baake Ellen , Kurtz Tom , Wiuf Carsten
Published: April 2018

Reaction systems and population dynamics constitute two highly developed areas of research that build on well-defined model classes, both in terms of dynamical systems and stochastic processes. Despite a significant core of common structures, the two fields have largely led separate lives. The workshop brought the communities together and emphasised concepts, methods and results that have, so far, appeared in one area but are potentially useful in the other as well.
Nonlinear Partial Differential Equations on Graphs
Authors: Fukuizumi Reika , Marzuola Jeremy L. , Pelinovsky Dmitry , Schneider Guido
Published: April 2018

One-dimensional metric graphs in two and three-dimensional spaces play an important role in emerging areas of modern science such as nano-technology, quantum physics, and biological networks. The workshop focused on the analysis of nonlinear partial differential equations on metric graphs, especially on the bifurcation and stability of nonlinear waves on complex graphs, on the justification of Kirchhoff boundary conditions, on spectral properties and the validity of amplitude equations for periodic graphs, and the existence of ground states for the NLS equation with and without potential.
Food, Religion and Communities in Early Modern Europe
Authors: Kissane Christopher
Published: April 2018

Using a three-part structure focused on the major historical subjects of the Inquisition, the Reformation and witchcraft, Christopher Kissane examines the relationship between food and religion in early modern Europe.

Food, Religion and Communities in Early Modern Europe employs three key case studies in Castile, Zurich and Shetland to explore what food can reveal about the wider social and cultural history of early modern communities undergoing religious upheaval. Issues of identity, gender, cultural symbolism and community relations are analysed in a number of different contexts. The book also surveys the place of food in history and argues the need for historians not only to think more about food, but also with food in order to gain novel insights into historical issues.

This is an important study for food historians and anyone seeking to understand the significant issues and events in early modern Europe from a fresh perspective.
Form-Focused Instruction on Non-English-Majored Undergraduates’ Foreign Language Writing
Authors: Lou Yougen
Published: April 2018

This paper reviewed a one-term experiment on form-focused instruction (FFI) in teaching foreign (English) writing to 162 first-year non-English-majored undergraduate students majored history, economics, computer, agriculture, plant protection, floriculture and veterinary from Yangtze University as participants. Participants in this study consisted of 81 non-English-majored undergraduate students in the control group (CG) and 81 non-English-majored undergraduate students in the treatment group (TG). The participants in CG were taught by the traditional method: grammar-translation teaching method and the participants in TG were taught by the new teaching method of FFI. The results showed that 1) compared with a teacher-dominated approach for CG, FFI in teaching English writing for TG did a better job in enhancing students’ English writing ability; 2) participates in TG hold positive opinions towards FFI in English writing..
RELAÇÃO DIALÓGICA COM O CLIENTE SOBRE TRANSPLANTE RENAL: CUIDADO EDUCATIVO DE ENFERMAGEM
Authors: Machado do Nascimento Ferreira Simone Aparecida , Teixeira Maria Luiza De Oliveira , Castelo Branco Elen Martins da Silva
Published: April 2018

OBJETIVOS: Descrever os saberes de clientes renais crônicos sobre o transplante renal e discutir as contribuições desses saberes nos cuidados educativos de enfermagem. MÉTODO: Pesquisa convergente-assistencial. Participaram 11 clientes portadores de doença renal crônica em estágio 4 e 5, que fizeram a opção do transplante renal como terapia renal de substituição. Realizaram-se entrevistas individuais. A análise foi de conteúdo temático. RESULTADOS: Os resultados trazem à discussão as pessoas em condições crônicas que necessitam de ações integradas com a participação de várias áreas do saber em saúde. Para isso acontecer, se faz indispensável uma efetiva comunicação entre os profissionais e o cliente que possui a experiência de quem vive a cronicidade. CONCLUSÃO: O diálogo possibilitou a reflexão sobre a construção e reconstrução de saberes e práticas sobre o transplante renal e revelou uma corresponsabilidade entre profissionais, clientes e seus familiares no processo recuperação do procedimento cirúrgico e manutenção do enxerto.DESCRITORES: Enfermagem. Educação em saúde. Insuficiência Renal Crônica. Cuidados de enfermagem.
ANÁLISE DOS AGRAVOS RELACIONADOS AO TRABALHO NOTIFICADOS NO SISTEMA DE INFORMAÇÕES EM SAÚDE DO TRABALHADOR
Authors: Franz Eloise Cristine , Casaril dos Santos Cargnin Marcia
Published: April 2018

Objetivo identificar os agravos relacionados ao trabalho, descrever as características sociodemográficas e de trabalho dos trabalhadores que sofreram agravos relacionados ao trabalho notificados no Sistema de Informação em Saúde do Trabalhador. Metodologia: Estudo descritivo e documental. A coleta de dados ocorreu por meio do acesso ao Sistema de Análise de Negócio do ano de 2015 dos 26 municípios de abrangência da Coordenadoria Regional de Saúde. Foram notificados 1.016 agravos, sendo destes, a maioria homens 760 (74,8%), de cor branca 908 (89,4%), na faixa etária dos 18-29 anos, 273 (26,8%) e que possuíam ensino Fundamental Incompleto, 460 (45,3%). O tipo de agravo mais notificado foi outros acidentes de trabalho, 787 (77,5%); aconteceram com maior frequência 809 (79,6%) no local de trabalho e na zona urbana 398 (39,2%). Percebe-se que a maioria dos agravos ocorridos foram com jovens o que pode trazer sequelas irreversíveis para os mesmos.
PERCEPÇÃO DA ENFERMEIRA OBSTETRA ACERCA DA VIOLÊNCIA OBSTÉTRICA
Authors: Leal Sarah Yasmin Pinto , Lima Vera Lúcia De Azevedo , Silva Andrey Ferreira da , Soares Patrícia Danielle Feitosa Lopes , Santana Luzia Ribeiro , Pereira Álvaro
Published: April 2018

Objetivo: conhecer a percepção de enfermeiros obstetras acerca da violência obstétrica. Método: Estudo exploratório, com abordagem qualitativa, realizada com 19 enfermeiras que atuavam no Centro Obstétrico, Pré-parto, Parto e Pós-parto de um hospital de referência materno infantil da cidade de Belém, Pará, Brasil. Os dados foram coletados por meio de entrevista semiestruturada, nos meses de abril e maio 2016, e submetidos à técnica de análise de conteúdo temática. Resultados: As enfermeiras obstétricas percebem que a violência obstétrica se apresenta de diversas formas, entretanto não reconhecem determinadas práticas como uma violação. Além disso, reconhecem que a falta de conhecimento da parturiente é um elemento de vulnerabilização em relação a violência obstétrica, despontando para as repercussões do fenômeno à vida da mulher. Considerações Finais: O estudo revelou as percepções das Enfermeiras vislumbrando à necessidade de estratégias preventivas a ocorrência do fenômeno da violência obstétrica.
The Relationship between Body Image Satisfaction and Bulimia Nervosa among King Saud University Students
Authors: Aljomaa Suliman Saleh
Published: April 2018

The study aimed at examining the relationship between body image satisfaction and bulimia nervosa among the students of education faculty at king said university students. The author used the tests of bulimia nervosa and body image test. The researcher verified tests reliability. Students from King Saud University randomly selected (No. 337) participated in the study. Overall mean of the body image satisfaction test scored 3.66 degrees, and the overall mean of the bulimia nervosa test scored 3.42 degrees. Data analysis indicated that there is a positive correlation between the body image satisfaction and bulimia nervosa, Pearson correlation coefficient scored 0.648, and bulimia nervosa predicted body image.
Reviewer Acknowledgements for International Education Studies, Vol. 11, No. 5
Authors: Lee Chris
Published: April 2018

Reviewer acknowledgements for International Education Studies, Vol. 11, No. 5, 2018.
Dividend Announcements of Banking Sector in Gulf Area; Pre, During and Post the Recent Global Financial Crisis
Authors: Jaara Bassam , Dalou Mahmoud
Published: April 2018

This research aims to analyze the movement of dividend policy announcements impact on share prices, and the performance of all listed banks in Gulf area pre-during-post the financial crisis. This research has positioned and utilized event study method, and dividend pay-out ratio to evaluate the movements in share prices of two event windows for 65 banks (All listed banks) from 2005 to 2013. The main results for this research showed that there is a strong signaling effect since most of the windows show positive impact of dividend announcements on the CAARS. Likewise, there can be equally significant lifecycle impact since the large banks show different pay out pattern as compared with the small banks. Moreover, there has been steady dividend pay by banks at an average even in the crisis periods. In addition, a proportion of payers have increased as compared to the non-payers over years, which is related to both life cycle and competition theories. The last finding presents that banking sector in the GCC countries have not been affected like other emerging countries during the global financial crisis, because they supported by oil prices.
Education of Left-Behind Children and Return Decisions of Migrant Workers in China
Authors: Wang Jianhua , Wu Jia
Published: April 2018

This paper uses a dynamic survey data of China labor force to explore the impacts of child education on their parents’ return decisions by means of constructing an empirical model. The migration situation of children is the basis for us to distinguish the sample migrant workers. And those migrants who migrate with their children and those who leave their children behind in their hometowns are the two types of migrants among this model which we will analyze in urban areas. The results show that the probability for migrant workers in urban areas to return to hometowns will significantly increase when their children are left behind at home. While these parents tend to stay in the cities which they work and live in when their left-behind children enter the school age. The data we use is from the China Labor Force Dynamics Survey and we establish a model to analyze the effects of left-behind children. The empirical results show that the probability for migrants to return to their hometowns will decrease by 20.8 % when their left-behind children enter the school age. To a large extent, the emergence of such a huge contrast may be the result of the optimal decision-making of migrant workers. And the phenomenon of large-scale “migrant worker shortage” caused by such mechanism has intensified in the labor market of coastal cities. And most of these cities have implemented relevant stringent admission policies for migrant children to receive education in urban public schools and this break the intentions of the immigrant parents who plan to take the left-behind children to the cities to receive education in local schools. And these immigrants choose to return in the case of decline of the family net income.
Decomposition of Parsimonious Independence Model Using Pearson, Kendall and Spearman's Correlations for Two-Way Contingency Tables
Authors: Iki Kiyotaka , Sato Shun , Tomizawa Sadao
Published: April 2018

For two-way contingency tables with ordered categories, Tomizawa (1992) considered the parsimonious Linear-by-Linear association model. This model can be described in terms of fewer parameters than the Linear-by-Linear association model (Agresti, 1983). The purpose of this paper is (i) to define the parsimonious independence model, (ii) to show the parsimonious independence model holds if and only if the parsimonious Linear-by-Linear association model holds and the each one of various correlation coefficients is equal to zero, and (iii) show the statistic for testing the parsimonious independence model is asymptotically equivalent to the sum of test statistics for the decomposed models.
EFFICIENCY AND COMPETITIVENESS OF SPECIALIST VINEYARDS IN SELECTED
EU COUNTRIES IN 2004-2015
Authors: Filipiak Tadeusz
Published: April 2018

The aim of the research was to assess the effectiveness and competitiveness of the viticulture farms
in selected EU countries in 2004-2014. During the surveyed period, there were large variations in the
factors of production. The resources of land and capital were mainly increasing, while labor resources
remained unchanged. There were fluctuations in the income. The highest income per farm was recorded
on French, German, Austrian and Italian farms, while the lowest on Bulgarian, Cypriot and Croatian
farms. The competitiveness index did not reach the level of approx. 2, which indicates limited development
opportunities. The highest index of competitiveness was on French and German farms. Attaining the
income parity of wine farm owners on the level of remuneration of hired employees does not guarantee
development opportunities for these farms.
ASYMMETRY OF SELF-SUFFICIENCY IN POTATO PRODUCTION IN THE EUROPEAN UNION
Authors: Firlej Krzysztof , Kubala Sebastian
Published: April 2018

Potato cultivation has been recognized for many years as the basic source of food for the population on
all continents. The purpose of the article was to attempt to assess the self-sufficiency of potato production
in EU countries as a product of great importance on agricultural markets. The study focused on technical
and economic self-sufficiency. As the individual indicators have shown, the countries of the European
Union are characterized by a significant differentiation in terms of self-sufficiency.
ASSESSMENT OF AWARENESS OF TYMBARK’S PROMOTIONAL ACTIVITIES
Authors: Jurczuk Elżbieta , Grontkowska Anna
Published: April 2018

The aim of the study is to determine the awareness of Tymbark's promotional activities. The research
was carried out using a questionnaire on a sample of 120 respondents (30 by PAPI and 90 CAWI ). The
research shows that Tymbark is a well-known and recognizable brand on the Polish market. Creative
marketing activities, such us innovative product packages and unconventional promotion were, more
effective than traditional marketing.
USE OF ENERGY BY HOUSEHOLDS IN POLAND
Authors: Trębska Paulina
Published: April 2018

Households in Poland are characterized by the highest energy consumption in the structure of final
energy consumption in general, and energy expenditure is an important item in expenditures in the household
budget of households. The aim of the article is to present changes in the use of energy by households in
Poland. Changes in energy expenditure in households in 2010-2016 were also assessed. The article uses
secondary data from the Central Statistical Office.
Breast Cancer Stem Cells and Iron Dependency
Authors: OZER Ufuk
Published: April 2018

Objectives:
Among woman, breast cancer is the most prevalent cancer worldwide. It is
composed of various cell types that are classified into different subtypes such
as triple negative breast cancer (TNBC), triple positive breast cancer (TPBC).
TNBCs and TPBCs represent distinct genetic background, thereby leading to
therapeutic diversity in breast cancer. It is critical to know their
tumorigenic properties to overcome the diversity.Methods:
TPBC cell lines; BT474, HCC1954 and TNBC cell lines; MDA-MB-435, Hs578T,
MDA-MB-231 were used to measure intracellular iron levels via a fluorescent
probe, calcein-AM, utilizing flow cytometry. Breast cancer stem cells (BCSCs)
are detected by surface expression of CD44+/CD24- markers in the lines.Results:
Here, it has shown that TNBCs have higher basal levels of iron and population
of BCSCs than TPBCs. Iron addition provides enrichment of BCSCs in TPBCs.Conclusion:
Iron is an important element for maintenance of BCSCs.
İntrakranial Menenjioma Olgularının Değerlendirilmesi: 72 Hastanın Analizi
Authors: TURAN Yahya , YILMAZ Tevfik
Published: April 2018

Amaç: Kliniğimizde 2012–2018 yıllarında ameliyat olmuş ve

menenjiom tanısı almış olan 72 hasta retrospektif olarak klinik, radyolojik ve

patolojik bulgularıyla incelenerek literatür eşliğinde tartışıldı. Yöntemler: Hastaların yaşları, cinsiyetleri, klinik

bulguları, radyolojik görüntüleri, yerleşim yerleri, ameliyat kayıtları ve

patolojik olarak aldıkları tanıları incelendi.Bulgular: 72 intrakranial menenjiomalı hastanın 47 (%65,3)’i

kadın, 25 (%34,7)’i erkektir. Kadın/Erkek oranı: 1.88’dir. Olgular 19-78 yaş

aralığında olup, yaş ortalaması 44.7’dir. Sıklık sırasına göre başvurma

nedenleri ve nörolojik muayene bulguları: Baş ağrısı (%72,2), bulantı-kusma

(%37,5), epilepsi (%25,0), motor defisit (%20,8)’dir. En sık yerleştikleri

lokalizasyonlar: konvexite 17 (%23,7), parasagital 14 (%19,5), sfenoid kanat 9

(%12,59 bölgesidir. Cerrahi tedavideki rezeksiyonumuzun Simpson

klasifikasyonuna göre; hastaların 57 (%79,2)’i grade I, 8 (%11,1)’i grade II, 2

(%2,8)’i grade III, 4 (%5,5)’i grade IV ve 1 (%1,4)’i grade V olarak

değerlendirilmiştir. Histopatojik tanıları ise sıklık sırasına göre; 29 (%40,3)

meningotelyomatöz, 13 (%18,1) fibröz, 9 (%12,5) transisyonel, 6 (%8,3) oranında

psammomatöz tip şeklinde tespit edildi.Sonuç: İntrakranial menenjiomalar malign tipleri dışında;

genellikle benign karekterde yavaş büyüyen, erken tanı konup, total

çıkarıldığında tam kür sağlanan, rekürrens oranı çok düşük olan tümörlerdir.

Menenjiomalarda cerrahi kararın verilmesinde ve sürvide; hastaların yaşı,

preoperatif performans skalası, tümörün lokalizasyonu, büyüklüğü, rezeksiyon

derecesi, histopatolojik özellikleri gibi birçok faktör rol oynamaktadır.

Asemptomatik, küçük boyutta, ameliyata uygun olmayan, yaşlı, kafa tabanı,

kavernöz sinüs gibi ulaşılması zor lokalizasyonlarda bulunan hastalarda seri

görüntülemelerle yakın takip ve radyocerrahi tercih edilebilir. MRG takibi 3.

ay, 6. ay ve sonrasında yıllık takipler şeklinde ve takipte gerek görülürse,

büyüme olursa cerrahi/radyocerrahi önerilir. Genç olan ve kalsifikasyonu

bulunmayanlarda hızlı büyüme riski nedeniyle cerrahi düşünülmelidir.