bluuebunny/crossref_metadata_2025 huggingface dataset:
Image Inpainting and Enhancement using Fractional Order Variational Model
Authors: Sridevi G. , Kumar Srinivas
Published: June 2017

The intention of image inpainting is to complete or fill the corrupted or missing zones of an image by considering the knowledge from the source region. A novel fractional order variational image inpainting model in reference to Caputo definition is introduced in this article. First, the fractional differential, and its numerical methods are represented according to Caputo definition. Then, a fractional differential mask is represented in 8-directions. The complex diffusivity function is also defined to preserve the edges. Finally, the missing regions are filled by using variational model with fractional differentials of 8-directions. The simulation results and analysis display that the new model not only inpaints the missing regions, but also heightens the contrast of the image. The inpainted images have better visual quality than other fractional differential filters.
Tracking Control Design for Quadrotor Unmanned Aerial Vehicle
Authors: Nadda Sudhir , Swarup A.
Published: June 2017

The model of a quadrotor unmanned aerial vehicle (UAV) is nonlinear and dynamically unstable. A flight controller design is proposed on the basis of Lyapunov stability theory which guarantees that all the states remain and reach on the sliding surfaces. The control strategy uses sliding mode with a backstepping control to perform the position and attitude tracking control. This proposed controller is simple and effectively enhance the performance of quadrotor UAV. In order to demonstrate the robustness of the proposed control method, White Gaussian Noise and aerodynamic moment disturbances are taken into account. The performance of the nonlinear control method is evaluated by comparing the performance with developed linear quadratic regulator and existing backstepping control technique and proportional-integral-derivative from the literature. The comparative performance results demonstrate the superiority and effectiveness of the proposed control strategy for the quadrotor UAV.
The non-solvable doubly transitive dimensional dual hyperovals
Authors: Dempwolff Ulrich
Published: June 2017

In [9] S. Yoshiara determines possible automorphism group of doubly transitive dimensional dual hyperovals. He shows that a doubly transitive dual hyperovalDis either isomorphic to the Mathieu dual hyperoval or the dual hyperoval is defined over 𝔽2, and if the hyperoval has rankn, the automorphism group has the formE⋅S, with an elementary abelian groupEof order 2nandSa subgroup of GL(n,2) acting transitively on the nontrivial elements ofE. Moreover Yoshiara describes the possible candidates forS. In this paper we assume thatSis non-solvable and show that then the dimensional dual hyperoval is a bilinear quotient of a Hyubrechts dual hyperoval.
Optimal inequalities for the normalizedδ-Casorati curvatures of submanifolds in Kenmotsu space forms
Authors: Lee Chul Woo , Lee Jae Won , Vîlcu Gabriel-Eduard
Published: June 2017

In this paper, we establish two sharp inequalities for the normalizedδ-Casorati curvatures of submanifolds in a Kenmotsu space form, tangent to the structure vector field of the ambient space.Moreover, we show that in both cases the equality at all points characterizes the totally geodesic submanifolds.
Successive radii and ball operators in generalized Minkowski spaces
Authors: Jahn Thomas
Published: June 2017

We introduce successive radii in generalized Minkowski spaces (that is, with respect to gauges) and study some first properties. This is done via formulating some kind of minimal containment problems, where intersections or Minkowski sums of the latter set and affine flats of a certain dimension are incorporated. Since this is strongly related to minimax location problems, we also look at ball intersections and ball hulls.
The Archimedean projection property
Authors: Coll Vincent , Dodd Jeff , Harrison Michael
Published: June 2017

Let H be a hypersurface in ℝ
n
and let π be an orthogonal projection in ℝ
n
restricted to H. We say that H satisfies the Archimedean projection property corresponding to π if there exists a constant C such that Vol(π
–1(U)) = C·Vol(U) for every measurable U in the range of π. It iswell-known that the (n–1)-dimensional sphere, as a hypersurface in ℝ
n
, satisfies the Archimedean projection property corresponding to any codimension 2 orthogonal projection in ℝ
n
, the range of any such projection being an (n – 2)-dimensional ball. Here we construct new hypersurfaces that satisfy Archimedean projection properties. Our construction works for any projection codimension k with 2 ≤ k ≤ n – 1, and it allows us to specify a wide variety of desired projection ranges Ω

n–k
⊂ ℝ
n–k
. Letting Ω

n–k
be the (n – k)-dimensional ball for each k, it produces a new family of smooth, compact hypersurfaces in ℝ
n
satisfying codimension k Archimedean projection properties that includes, in the special case k = 2, the (n – 1)-dimensional spheres.
Ricci solitons on four-dimensional Lorentzian Walker manifolds
Authors: Sidhoumi Noura , Batat Wafaa
Published: June 2017

We prove that there exist non-trivial (i.e. not Einstein) Ricci solitons on non-conformally flat four-dimensional Lorentzian Walker manifolds. Moreover, we show that only steady Ricci solitons may be gradient ones.
Criteria for Hattori–Masuda multi-polytopes via Duistermaat–Heckman functions and winding numbers
Authors: Cho Mi Ju , Kim Jin Hong , Lee Hwa
Published: June 2017

A multi-fan (respectively multi-polytope), introduced first by Hattori and Masuda, is a purely combinatorial object generalizing an ordinary fan (respectively polytope) in algebraic geometry. It is well known that an ordinary fan or polytope is associated with a toric variety. On the other hand, we can geometrically realize multi-fans in terms of torus manifolds. However, it is unfortunate that two different torus manifolds may correspond to the same multi-fan. The goal of this paper is to give some criteria for a multi-polytope to be an ordinary polytope in terms of the Duistermaat–Heckman functions and winding numbers. Moreover, we also prove a generalized Pick formula and its consequences for simple lattice multi-polytopes by studying their Ehrhart polynomials.
Magnetic characterization of the nickel layer protecting the copper wires in harsh applications
Authors: Roger Daniel , Duchesne Stephane , Iosif Vadim
Published: June 2017

High Temperature (HT°) motor coils open new perspectives for extending the applications of electrical motors or generators to very harsh environments or for designing very high power density machines working with high internal temperature gradients. Over a temperature of 300°C, the classic enameled wire cannot work permanently, the turn-to-turn insulation must be inorganic and made with high temperature textiles or vitro-ceramic compounds. For both cases, a diffusion barrier must protect the copper wire against oxidation. The usual solution consists of adding a nickel layer that yields an excellent chemical protection. Unfortunately, the nickel has ferromagnetic properties that change a lot the skin effect in the HT wire at high frequencies. For many applications such as aeronautics, electrical machines are always associated with PWM inverters for their control. The windings must resist to high voltage short spikes caused by the fast fronted pulses imposed by the feeding inverter. The nickel protection layer of the HT° inorganic wire has a large influence on the high frequency behavior of coils and, consequently, on the magnitude of the voltage spikes. A good knowledge of the non-linear magnetic characteristics of this nickel layer is helpful for designing reliable HT inorganic coils. The paper presents a method able to characterize non-linear electromagnetic properties of this nickel layer up to 500°C.
Statistical analysis and dimensioning of a wind farm energy storage system
Authors: Waśkowicz Bartosz
Published: June 2017

The growth in renewable power generation and more strict local regulations regarding power quality indices will make it necessary to use energy storage systems with renewable power plants in the near future. The capacity of storage systems can be determined using different methods most of which can be divided into either deterministic or stochastic. Deterministic methods are often complicated with numerous parameters and complex models for long term prediction often incorporating meteorological data. Stochastic methods use statistics for ESS (Energy Storage System) sizing, which is somewhat intuitive for dealing with the random element of wind speed variation. The proposed method in this paper performs stabilization of output power at one minute intervals to reduce the negative influence of the wind farm on the power grid in order to meet local regulations. This paper shows the process of sizing the ESS for two selected wind farms, based on their levels of variation in generated power and also, for each, how the negative influences on the power grid in the form of voltage variation and a shortterm flicker factor are decreased.
Optimized design of a high-power-density PM-assisted synchronous reluctance machine with ferrite magnets for electric vehicles
Authors: Liu Xiping , Li Ya , Liu Zhangqi , Ling Tao , Luo Zhenhua
Published: June 2017

This paper proposes a permanent magnet (PM)-assisted synchronous reluctance machine (PMASynRM) using ferrite magnets with the same power density as rareearth PM synchronous motors employed in Toyota Prius 2010. A suitable rotor structure for high torque density and high power density is discussed with respect to the demagnetization of ferrite magnets, mechanical strength and torque ripple. Some electromagnetic characteristics including torque, output power, loss and efficiency are calculated by 2-D finite element analysis (FEA). The analysis results show that a high power density and high efficiency of PMASynRM are obtained by using ferrite magnets.
Implementation of mathematical model of thermal behavior of electronic components for lifetime estimation based on multi-level simulation
Authors: Frivaldsky Michal , Pridala Michal , Drgona Peter
Published: June 2017

The main purpose of the paper is the proposal of multi-level simulation, suited for the evaluation of the lifetime of critical electronic devices (electrolytic capacitors). The aim of this issue is to imagine about the expected operation of complex and expensive power electronic systems, when the failure of the most critical component occurs. For that reason, various operational conditions and various physical influences must be considered (e.g. mechanical, humidity, electrical, heat stress), where nonlinearities are naturally introduced. Verification of the proposal is given, whereby the life-time estimation of an electrolytic capacitor operated in a DC-DC converter during various operational conditions is shown. At this point electrical and heat stress is considered for lifetime influence. First, the current state in the field of mathematical modeling of the lifetime for electrolytic capacitors, considering main phenomena is introduced. Next, individual sub-models for multi-level simulation purposes are developed, including a thermal simulation model and electrical simulation model. Several complexities of individual models are mutually compared in order to evaluate their accuracy and suitability for further use. Proper simulation tools have been mutually linked and data transfer was secured, in order to have the possibility of investigation of a lifetime depend on the changes of various variables.
Influence of the rotor eccentricity on the torque of a cage induction machine
Authors: Silwal Bishal , Rasilo Paavo , Belahcen Anouar , Arkkio Antero
Published: June 2017

The non-uniform air gap in an electrical machine caused by rotor eccentricity creates an asymmetrical flux-density distribution in the air gap. This can affect the nominal torque produced by the machine. Eccentricity also produces forces that act on the rotor which may also have an effect on the torque. Thus, it is important to know how the torque of the machine behaves. In this paper, the torque of a cage induction machine is studied when the machine has dynamic eccentricity. The study is performed using the finite element method and a magnetic vector potential formulation. The torque is calculated by the method of energy balance. The harmonic components of the torque are also analyzed. The results show that the machine under eccentricity does not exhibit the same torque as a normal healthy machine. The harmonic components around the first principal slot harmonic is most affected.
The model of double-cage induction motor for the analysis of thermal fields in transient operations
Authors: Mróz Jan
Published: June 2017

Emergency motor switch-on happens occasionally while operating a doublesquirrel- cage motor at full supply voltage with the rotor blocked (e.g., in coal mills). After releasing the blockage, the by now heated motor is started up again. However, the mechanical stress caused by the increased temperature poses considerable hazards to the squirrel-cage winding. This paper presents a double-cage induction motor model for analysis of thermal fields in transient operation. The thermal field for the rotor of a doublesquirrel- cage motor of soldered or cast structure, operating in the conditions described, has been calculated in the present paper using a thermal network method. Measurement results have been presented for the double-squirrel-cage winding temperature for a soldered cage construction in the blocked rotor state.
Scaling-based prediction of magnetic anisotropy in grain-oriented steels
Authors: Najgebauer Mariusz
Published: June 2017

The paper presents the scaling-based approach to analysis and prediction of magnetic anisotropy in grain-oriented steels. Results of the anisotropy scaling indicate the existence of two universality classes. The hybrid approach to prediction of magnetic anisotropy, combining the scaling analysis with the ODFs method, is proposed. This approach is examined in prediction of angular dependencies of magnetic induction as well as magnetization curves for the 111-35S5 steel. It is shown that it is possible to predict anisotropy of magnetic properties based on measurements in three arbitrary directions for φ = 0°, 60° and 90°. The relatively small errors between predicted and measured values of magnetic induction are obtained.
Competitive Strategies of Croatian Small Familyrun Hospitality and Catering Enterprises
Authors: Perkov Davor , Merkaš Zvonko , Crnkić Kenan
Published: June 2017

The subject of this paper is examining ways of creating strategic competitiveness in Croatian small family-run catering enterprises. Competitive advantage is necessary if the enterprise wants to survive on the market. Selection of a business strategy is an important factor because a company’s positioning is determined by profitability that can be above or below the industry average. Economic reality of the largest number of the world’s economies is characterized by domination of family-run businesses. This is followed by the growing interest in determining the importance of family-run businesses to national economies, the ways of their participation, and finding problems which they have to deal with. Family entrepreneurship represents a special area of small entrepreneurship in Croatia. This work presents core characteristics of entrepreneurship in Croatia, defined as family-run enterprise, along with its features, with special interest on some of the more important characteristics of family entrepreneurship. The main goal of this paper is to examine and analyze all the features of business strategies that generate a competitive advantage. An empirical online survey was conducted in 2015 among sixty Croatian small family-run catering enterprises. Over 40% of respondents believe that the government should facilitate an easier and more long-term administration for entrepreneurs. Research has also shown that the sustainability of competitive advantage lies in adapting to guest wishes.
Is Contemporary Tourism Only a Neoliberal Manipulation?
Authors: Pavlović Duško , Knežević Mladen
Published: June 2017

Increased number of tourists traveling abroad has been on a steady rise for several decades. However, an explosion of tourist travel can be followed from the end of the 1960’s. This trend largely coincides with the development of the neoliberalist form of capitalism in the world. Therefore, modern tourism, in many ways, can be seen as the product of neo-liberal phase of the development of modern capitalism. This trend is not seen only as a result of neo-liberal phase in the development of the modern world economy. This is a trend for mindedness itself. One of the most important rules that underlie the contemporary neoliberal thought is the rule of market. It seems that this neoliberalist rule in the tourist industry has reached its peak. The market in tourism regulates not only goods production, but it fully regulates the lives of people involved in tourism. Consumers of tourist products are not aware of manipulation, they are even grateful for the manipulative activities of which thay are object. On the other hand, many tourists themselves are part of the general neoliberal mentality. Many tourists not only accept the rules, but are also deeply involved in their implementation and enforcement. The paper will make an overview of some of the basic features of neoliberalism as economic thought and philosophy of life and connect it with contemporary trends in tourism.
Flexible tissue-like electrode as a seamless tissue-electronic interface
Authors: Weigel Tobias , Pfister Tobias , Schmitz Tobias , Jannasch Maren , Schürlein Sebastian , Hijailan Reem Al , Walles Heike , Hansmann Jan
Published: June 2017

Current implantable electrodes facilitate only a low cellular infiltration impairing the long-term integration into the host’s tissue. To accomplish a seamless electronic-tissue interface, conductive three-dimensional (3D) scaffolds were generated by carbonization of electro-spun fiber meshes. When introducing NaCl particles as porogens, tailored tissue-like electrodes were generated. Characterization of the porous 3D fiber electrodes demonstrated improved material and electrical characteristics compared to standard carbon fiber meshes or flat gold surfaces. The feasibility of the porous 3D electrodes was assessed by cell culture experiments, confirming the migration of cells into the electrode and the formation of contracting cardiomyocyte clusters. Finally, a complex cardiac co-culture system proved the integration of the tissue into the 3D electrode in long-term culture of 7 weeks. These results strengthen the development of tissue-like 3D scaffolds as alternative to two-dimensional (2D) electrodes.
Combining Ideas in Crowdsourced Idea Generation
Authors: Wang Kai , Wang Hui , Tao Yu
Published: June 2017

Collecting ideas through crowdsourcing has become a common practice for companies to benefit from external ideas and innovate. It is desirable that crowd members build on each other's ideas to achieve synergy. This study proposes and verifies a new method for idea combination which can result in combined ideas that are both novel and useful. The domain-specific knowledge of crowd members does not influence the effectiveness of such idea combination. The new method can be used for collecting highly creative ideas from the crowd. The implications for future research are discussed.
Reversed Robin Hood Syndrome in the Light of Nonlinear Model of Cerebral Circulation
Authors: Piechna A. , Cieslicki K.
Published: June 2017

The brain is supplied by the internal carotid and vertebro-basilar systems of vessels interconnected by arterial anastomoses and forming at the base of the brain a structure called the Circle of Willis (CoW). An active intrinsic ability of cerebral vascular bed maintains constant Cerebral Blood Flow (CBF) in a certain range of systemic pressure changes. This ability is called autoregulation and together with the redundant structure of the CoW guarantee maintaining CBF even in partial occlusion of supplying arteries. However, there are some situations when the combination of those two mechanisms causes an opposite effect called the Reversed Robin Hood Syndrome (RRHS). In this work we proposed a model of the CoW with autoregulation mechanism and investigated a RRHS which may occur in the case of Internal Carotid Artery (ICA) stenosis combined with hypercapnia. We showed and analyzed the mechanism of stealing the blood by the contralateral side of the brain. Our results were qualitatively compared with the clinical reports available in the literature.
Physical fitness and obesity levels during an academic year followed by summer holidays: an issue of insufficient time for physical activity
Authors: Aphamis George , Ioannou Yiannakis , Giannaki Christoforos D.
Published: June 2017

Today, available time for physical activity has been continuously decreasing, whilst, school-time physical education (PE) classes appear to be the only real option for many adolescents to engage in physical activity and exercise. The aim of the present study was to investigate fitness and health related parameters over one academic year, and after the summer holidays for adolescents who do not engage in out-of-school physical activities. Participants were 153 students (age: 15–17 years; boys n = 86) who exercised only during PE (2 × 45-min periods per week). Body fat, flexibility, handgrip strength, squat jump, 30 m sprint and cardiorespiratory fitness were examined at the beginning and end of a school year, and after the ensuing summer holidays. The boys improved handgrip and flexibility, but no other significant improvement was observed over the school year in any of the examined physical fitness parameters, or obesity indices. Instead, the girls’ cardiorespiratory fitness decreased over the summer holidays. It seems that exercising only twice a week during school PE classes is insufficient to induce significant improvements in physical fitness, body composition and health parameters.
Improving adolescent access and services in a large primary care network: report of a 10 year project
Authors: Alderman Elizabeth M. , Freeman Kim L. , Lobach Katherine S.
Published: June 2017

This report describes a decade long initiative to bring a unified approach and improved quality to the process and content of adolescent health care in a large and complex urban primary care network within an academic health system. The moving force was a voluntary multidisciplinary group who comprised the Montefiore Adolescent Primary Care Initiative, known as MAPCI, led by a physician subspecialist in Adolescent Medicine. A series of needs assessments formed the basis for a multipronged effort to create policies and procedures, educational activities and materials, changes in record-keeping and billing practices, and modification of staff attitudes and behavior that would enhance access and ensure confidentiality of services for the adolescent age group. The commitment of medical center leadership contributed to overall progress which was accelerated in the second half of the decade by the addition of a full-time staff member, with the title Adolescent Program Manager. Progress in various arenas was assessed with a series of planned studies, whose positive results provided encouragement for continuing efforts. The example of this initiative and its accomplishments should provide useful and replicable methods that could be adapted for improvement of adolescent health services in some of the other large primary care networks that are an ever-expanding presence in the current health care environment.
Indigenous Tewa language regimes across time: Persistence and transformation
Authors: Kroskrity Paul V.
Published: June 2017

This article attempts to trace and understand the historical development and transformation of the regimes of language Indigenous to the Village of Tewa (northeastern Arizona). It examines the social institutions and cultural practices that first cultivated a particular set of language ideologies and linguistic practices in the precolonial period. It also tracks more recent transformations involving contemporary Tewa adaptations to inclusion in the federally recognized Hopi Tribe and to the hegemony of the larger nation-state. Critical to my argument is the role of theocratic institutions and Indigenous social organization (e.g., clans and moieties) in providing a foundation for ideological production and elaboration. This account provides a better analysis of Tewa linguistic resistance to Spanish colonization than that of Edward Dozier, who attributed language contact outcomes to the historical circumstances of Spanish colonial oppression rather than to the expression of Indigenous language ideologies, including their regimes of temporalization and the crossing of temporal borders in subjective history.
Changing livelihoods and language repertoires: hunting, fishing and gold mining in the southeast Peruvian Amazon
Authors: Aikman Sheila
Published: June 2017

This article investigates how over the space of three decades the language repertoires of the Arakmbut people of the southeast Peruvian Amazon have shifted from being predominantly Harakmbut language based to Spanish language based. It asks not how one language has come to replace another in the daily lives of the Arakmbut, but what this shift represents in terms of changing lifestyles, social relations, desirable affiliations and the changing value Harakmbut and Spanish language resources have for them in furthering these relationships. Drawing on long term ethnographic research, it presents four scenarios over this period through which the changes in Arakmbut livelihoods from hunting and fishing to gold mining are discussed and what these changes mean in terms of their social, cultural and spiritual relationships with their territory. As their livelihoods have become more entwined with the gold economy and new national alliances and international networks, they have sought to reshape their communicative repertoires to respond to and ensure their continuing access to resources for their health and stability as a community in an intense and fast moving social, economic and cultural landscape.
Phytochemical analysis of Myrtus communis plant: Conventional versus microwave assisted-extraction procedures
Authors: Bouaoudia-Madi Nadia , Boulekbache-Makhlouf Lila , Kadri Nabil , Dahmoune Farid , Remini Hocine , Dairi Sofiane , Oukhmanou-Bensidhoum Sonia , Madani Khodir
Published: June 2017

Background

Myrtle (Myrtus communis L) may constitute an interesting dietary source of health protective compounds. Microwave-assisted extraction (MAE) of total phenolic compounds (TPC) from myrtle leaf, stems, pericarp, and seeds was studied and the results were compared with those of the conventional method extraction (CME) in terms of extraction time.

Methods

Extraction yield/efficiency and antioxidant activity were measured using radical scavenging assay (DPPH•) and reducing power.

Results

The results show that the MAE was higher in terms of saving energy, extraction time (62 s) and extraction efficiency of bioactive compound compared to CME (2 h). Leaf presented the optimum content of total phenols (250 mg GAE.g−1 DW) and flavonoids (13.65 mg GAE.g−1 DW). However, the anthocyanin content was most important in pericarp extract (176.50±2.17 mg Cyd-3-glu g−1 DW). The antioxidant activity was important in all parts, mainly in leaves. The results indicated that appropriate microwave treatment could be an efficient process to phenolic compounds recovery and thus, better the antioxidant activity of myrtle extract.

Conclusions

Principal component analysis (PCA) applied to the experimental data shows that the distribution of the myrtle phenolic compounds depended on their plant part localization as well as the extraction method.
Omics Data Complementarity Underlines Functional Cross-Communication in Yeast
Authors: Malod-Dognin Noël , Pržulj Nataša
Published: June 2017

Mapping the complete functional layout of a cell and understanding the cross-talk between different processes are fundamental challenges. They elude us because of the incompleteness and noisiness of molecular data and because of the computational intractability of finding the exact answer. We perform a simple integration of three types of baker’s yeast omics data to elucidate the functional organization and lines of cross-functional communication. We examine protein–protein interaction (PPI), co-expression (COEX) and genetic interaction (GI) data, and explore their relationship with the gold standard of functional organization, the Gene Ontology (GO). We utilize a simple framework that identifies functional cross-communication lines in each of the three data types, in GO, and collectively in the integrated model of the three omics data types; we present each of them in our new Functional Organization Map (FOM) model. We compare the FOMs of the three omics datasets with the FOM of GO and find that GI is in best agreement with GO, followed COEX and PPI. We integrate the three FOMs into a unified FOM and find that it is in better agreement with the FOM of GO than those of any omics dataset alone, demonstrating functional complementarity of different omics data.
A framework for use in modelling the modal choice decision making process in North West England’s Atlantic Gateway
Authors: Bury Alan , Paraskevadakis Dimitrios , Ren Jun , Saeed Farhan
Published: June 2017

The task of producing a generic model of the modal choice decision making process is a challenging one. Modal choice is strongly influenced by the infrastructure limitations and geographical constraints of the area in which the decision is being made. With this in mind, addressing modal choice on an individual basis for each region may be the optimal solution. This is the approach adopted in this paper. The creation of a modal choice model is a multistage process of which this paper addresses the first stage, the production a framework of the decision making process. Firstly, a number of criteria that are commonly used in modal choice models are identified. Then a number of gaps in the criteria utilized in previous papers are established. Subsequently, the method used to produce a framework of the decision making process within North West England’s Atlantic Gateway is outlined. Through consultation with transport industry experts in North West England, an initial list of sixty eight papers was reduced to thirty six that were considered to be of specific relevance to modern day freight transportation within their region. The criteria used in each of these papers were then, along with further industry input, used to create the foundation on which a modal choice framework specific to the Atlantic Gateway could be built. A greater understanding of what influences modal choice within this region will allow informed decisions to be made by policy makers on how to more efficiently utilize the available modes of freight transport. Having established this, future work can then go on to build upon these findings. This paper recommends that future work is performed to establish the weights of each criteria and sub-criteria within the framework. This should then be followed by establishing industry’s perceptions of the best and worst alternatives for moving freight within the Atlantic Gateway.
Systematic Approach to Sustainability of Novel Internet-Based System for Food Logistics
Authors: Koistinen Katariina , Uusitalo Ville , Huostila Anna
Published: June 2017

The aim of this paper is to evaluate the sustainability of a novel internet-based system for food logistics and to create a framework for more detailed future sustainability assessments. Digitalization enables food shopping via the internet and food delivery from producers to consumers using only a single terminal. The sustainability of different food logistic options was evaluated through a literature review and life cycle assessment. Given the frame of reference, there is a gap in the knowledge on the sustainability of food logistics. In addition, the current literature does not recognize a novel internet-based system for food logistics, as the literature has focused on evaluating the internet-based food logistics of traditional actors. The life cycle assessment results show that new food logistic options could reduce GHG emissions, but various factors affect the magnitude of the reductions. We also present a systematic approach to which factors should be included in future research. This paper creates a base for more detailed future food logistic sustainability assessments.
Impact of Commercial Motorcycle Operation on Urban Mobility in Ogun State, Nigeria
Authors: Afolabi Oluwaseyi Joseph , Gbadamosi Kolawole Taofeek
Published: June 2017

The significant of public transport of cities in many developing countries lies in the fundamental fact that mobility and accessibility are essential for economic growth and of necessity to provide efficient and effective movement for goods and services. The collapse of public intra-city transport system paved way for the rise of motorcycles as means of public transportation in Nigeria. This paper discusses the impact of commercial motorcycle operation as a means of urban transportation. Of the 200 questionnaires administered, 191 questionnaires were received for analysis using the Statistical Package for Social Sciences (SPSS). Secondary data was also sourced to serve as complement to the primary data, thus allowing for a robust research. Descriptive statistical tools such as percentages were adopted to present the socio - economic characteristics in the area. Findings showed that the majority of the users are adult between the aged 31 and 40 years. Most of them (53.8%) are married and are fairly educated. Furthermore, it was recommended that the Nigerian government should provide employment opportunities for our teeming youth as this will go a long way in the reduction of number of youth who as a result of unemployment took to motorcycle riding business.
Elevated Serum Protein S100B and Neuron Specific Enolase Values as Predictors of Early Neurological Outcome after Traumatic Brain Injury
Authors: Stefanović Branislava , Đurić Olivera , Stanković Sanja , Mijatović Srđan , Doklestić Krstina , Stefanović Branislav , Jovanović Bojan , Marjanović Nataša , Kalezić Nevena
Published: June 2017

Background: The objective of our study was to determine the serum concentrations of protein S100B and neuron specific enolase (NSE) as well as their ability and accuracy in the prediction of early neurological outcome after a traumatic brain injury. Methods: A total of 130 polytraumatized patients with the associated traumatic brain injuries were included in this prospective cohort study. Serum protein S100B and NSE levels were measured at 6, 24, 48 and 72 hours after the injury. Early neurological outcome was scored by Glasgow Outcome Scale (GOS) on day 14 after the brain injury. Results: The protein S100B concentrations were maximal at 6 hours after the injury, which was followed by an abrupt fall, and subsequently slower release in the following two days with continual and significantly increased values (p<0.0001) in patients with poor outcome. Secondary increase in protein S100B at 72 hours was recorded in patients with lethal outcome (GOS 1). Dynamics of NSE changes was characterized by a secondary increase in concentrations at 72 hours after the injury in patients with poor outcome. Conclusion: Both markers have good predictive ability for poor neurological outcome, although NSE provides better discriminative potential at 72 hours after the brain injury, while protein S100B has better discriminative potential for mortality prediction.
Women with Polycystic Ovary Syndrome and Risk of Cardiovascular Disease
Authors: Blagojevic Iva Perovic , Eror Tatjana , Pelivanovic Jovana , Jelic Svetlana , Kotur-Stevuljevic Jelena , Ignjatovic Svetlana
Published: June 2017

Background:Polycystic ovary syndrome (PCOS) is associated with reproductive and metabolic abnormalities. The aim of this study was to analyse risk of cardiovascular disease (CVD) in PCOS, to define individual risk factors and assess their ability to predict risk.

Methods:Fifty-four young women with PCOS (22 obese and 32 normal weight) were compared to 46 respective controls (17 obese and 29 normal weight). Anthropometric parameters, lipid status parameters, inflammation markers, concentrations of glucose, transaminases, sex and anterior pituitary hormones, sex hormone binding globulin (SHBG) and androgens were measured. Cardiovascular Risk Score (CVRS), indices for identifying Non-Alcoholic Fatty Liver Disease (NAFLD) and the Index of Central Obesity (ICO) were calculated.

Results:Significantly higher CVRS values (p<0.05) were found in obese PCOS women compared to normal weight control and normal weight PCOS groups. Anthropometric parameters, lipid status parameters and fibrinogen (p<0.001, p<0.01) were higher in women with higher CVRS. The most significant CVRS predictors in all PCOS women were SHBG, androstenedione, follicle-stimulating hormone (FSH) and dehydroepiandrosterone sulphate (DHEAS). ICO and all NAFLD indices exhibited significant positive correlation with CVRS and a model consisting of these indices provided good diagnostic accuracy (AUC>0.8) in identifying patients with increased cardiovascular risk (CVR).

Conclusions:Obesity is a higher risk for developing CVD than PCOS alone. Anthropometric parameters, lipid parameters, fibrinogen, NAFLD indices and ICO increase CVR in PCOS women. For the prediction of CVR in PCOS, we suggest a combination of NAFLD indices and ICO.
The Evaluation of Analytical Performance of Immunoassay Tests by Using Six-Sigma Method
Authors: Nar Rukiye , Emekli Dilek Iren
Published: June 2017

Background: The Six-Sigma Methodology is a quality measurement method in order to evaluate the performance of the laboratory. In the present study, it is aimed to evaluate the analytical performance of our laboratory by using the internal quality control data of immunoassay tests and by calculating process sigma values. Methods: Biological variation database (BVD) are used for Total Allowable Error (TEa). Sigma values were determined from coefficient of variation (CV) and bias resulting from Internal Quality Control (IQC) results for 3 subsequent months. If the sigma values are ≥6, between 3 and 6, and <3, they are classified as »world-class«, »good« or »un - acceptable«, respectively. Results: A sigma value >6 was found for TPSA and TSH for the both levels of IQC for 3 months. When the sigma values were analyzed by calculating the mean of 3 months, folate, LH, PRL, TPSA, TSH and vitamin B12 were found >6. The mean sigma values of CA125, CA15-3, CA19-9, CEA, cortisol, ferritin, FSH, FT3, PTH and testosteron were >3 for 3-months. However, AFP, CA125 and FT4 produced sigma values <3 for varied months. Conclusion: When the analytical performance was evaluated according to Six-Sigma levels, it was generally found as good. It is possible to determine the test with high error probability by evaluating the fine sigma levels and the tests that must be quarded by a stringent quality control regime. In clinical chemistry laboratories, an appropriate quality control scheduling should be done for each test by using Six-Sigma Methodology.
Is There a Real Correlation Between Red Cell Distribution Width and Peripheral Arterial Disease?
Authors: Duman Enes , Kulaksızoglu Sevsen , Çifçi Egemen , Ozulku Mehmet
Published: June 2017

Background: Few data is available concerning the association between peripheral arterial disease (PAD) and red cell distribution width (RDW). In this study, we analyzed the relationship between RDW and atherosclerosis of the vessels other than coronary arteries in patients who had undergone digital substraction angiography (DSA). Methods: This study included 730 patients who had undergone DSA. Patients were divided into two groups according to their angiographic images. The association between RDW and atherosclerosis of peripheral arteries was analyzed. The relationship between atherosclerosis and smoking, hypertension (HT), diabetes mellitus (DM), hs-CRP, hemoglobin, white blood cell (WBC), triglyceride, total cholesterol, HDL and LDL cholesterol levels was assessed. Results: Atherosclerosis was observed more common in male and patients with older age, HT, DM and smoking (p<0.001). hs-CRP and WBC levels were both in significantly positive association with atherosclerosis (p<0.05). However, there were no significant differences in the RDW levels, hemoglobin, triglyceride, total cholesterol, LDL and HDL cholesterol levels in the groups (p>0.05). Conclusion: Our results seem to demonstrate that older age, male gender, HT, DM and smoking are powerful risk factors for PAD. In contrast to the previous reports, RDW levels are found not to be associated with atherosclerosis of peripheral arteries.
Novel Opportunities for Improving the Quality of Preanalytical Phase. A Glimpse to the Future?
Authors: Lippi Giuseppe , Cadamuro Janne
Published: June 2017

The preanalytical phase is crucial for assuring the quality of in vitro diagnostics. The leading aspects which contribute to enhance the vulnerability of this part of the total testing process include the lack of standardization of different practices for collecting, managing, transporting and processing biological specimens, the insufficient compliance with available guidelines and the still considerable number of preventable human errors. As in heavy industry, road traffic and aeronautics, technological advancement holds great promise for decreasing the risk of medical and diagnostic errors, thus including those occurring in the extra-analytical phases of the total testing process. The aim of this article is to discuss some potentially useful technological advances, which are not yet routine practice, but may be especially suited for improving the quality of the preanalytical phase in the future. These are mainly represented by introduction of needlewielding robotic phlebotomy devices, active blood tubes, drones for biological samples transportation, innovative approaches for detecting spurious hemolysis and preanalytical errors recording software products.
Climate for Innovation impacts on Adaptive Performance. Conceptualization, Measurement, and Validation
Authors: Stańczyk Sylwia
Published: June 2017

The main objective of this paper was to examine the relationship between organizational climate for innovation and adaptive performance. The study was carried out in business organisations in Poland (N=387), representing variety of industries. The Cimate for Innovation measure and Individual Adaptive Performance measure was adopted from previous studies. The results of presented research point out that certain measurements of the organizational climate for innovation are interrelated to adaptive performance, especially supervisory encouragement. The present study discusses some aspects concerning the adaptation of existing instruments and measurements. On the basis of the research presented we indicate that, in general, the adaptation, of the mesearuments were relatively effective. The questionnaire was assessed as to be valid in terms of content for the reseraching CI and AP aspects in Poland.
Trust as a factor activating implementation abilities – from theory to practice of a flexible company
Authors: Nogalski Bogdan , Niewiadomski Przemysław
Published: June 2017

As a result of the wide recognition of the importance of trust as an element related to the cooperation in a variable and hardly predictable environment, the trust was appreciated by management sciences. Thanks to the trust, the organisation can react quickly to changes in a complex and turbulent environment, in which it is necessary to develop new - adequate to the needs - products. In the context of the above, the research was commenced, whose execution was the condition of an attempt to answer the question: is the number of the products implemented by the manufacturer a derivative of trust built between him/her and his/her recipients? In the context of such a question, the main objective of the paper is an attempt to illustrate trust - created by the manufacturer - as an attribute promoting his/her implementation flexibility. The achievement of such an objective is possible thanks to a detailed case analysis of the selected implementation process, which confirms that good relationships between partners - as a result of the increase in production series - may imply a decrease in its unit costs, which leads to significant profits in the long term.
Psychological and organisational aspects of age management in organisations
Authors: Witkowski Stanisław , Bartosz Bogna
Published: June 2017

In article we present selected issues of age management in organizations. They pointed to the lack of rationale for the discriminatory policies of some companies to employees aged 50+. Attention of managers was paid to the problem of age management in organizations, conditioned by an increase in the number of employees 50+. In Poland, currently there are employed approx. 31% of workers in this group (64 years old). While in EU countries the employment rate for workers aged fifty years and older more than 50%. The article discusses the specifics of the development processes and changes in the phase of middle and late adulthood, characterizing the population of employees and pointing to the “strengths” of the group. Age management in the context of both pathology and positive practices was presented. Referring to the data the benefits of age management were indicated.
The image of the manager-leader of the near future - an outline of the issues
Authors: Glinkowska Beata , Kaczmarek Bogusław
Published: June 2017

The study contains description characteristics and analyses (obviously abbreviated) of two approaches and two concepts of management regarding the manager-leader of the near future. The first concept refers to new tasks and skills of the manager-leader. The second concept concerns the nature of the so-called manager of tomorrow, called - although it is not yet common name in management - the manager - eco-leader. In the introduction a reference was made to the issue raised, the purpose of the study, and the justification for choosing the concepts assumed in the study. In the next section, new tasks and skills of the manager - leader of the near future are cited and analyzed. The issues surrounding the concept of eco-leader were also discussed.
Variations in the perception of the elements that constitute training based on company size, employee seniority, and company age
Authors: Vásquez-Torres María
Published: June 2017

The implementation of training programs in industrial enterprises is determined by the elements that constitute training and variations in the perception of and value placed on those elements. This study aims to present an analysis of the variations in the perception of the elements that constitute training based on company size, management position seniority, and company age.

For the analysis, we used one-way ANOVA to quantify the differences and post-hoc Bonferroni tests to assign values to the differences. The results show that there is a mean difference between training and the three variables mentioned above.

The main differences indicate that medium-sized enterprises have a higher training index than small enterprises and that managers whose seniority is low value budget as a determining variable in the decision of whether to implement training programs.

In relation to company age, it is concluded that compared with younger companies, older organizations direct their training programs towards achieving their mission, vision, values, and goals.