bluuebunny/crossref_metadata_2025 huggingface dataset:
Looped-chain-based active current sharing strategy in DC microgrids
Authors: Li Dexiong , Liu Yiqi , Gu Yong , Qi Huijuan
Published: September 2017

The integration of renewable energy sources in modern electric grids have drawn increasing attention nowadays. In order to effectively manage large-scale renewable energy sources and achieve flexible and efficient operation, the concept of microgrids have been proposed. Considering the nature of DC outputs in many distributed energy resources (DERs), DC microgrids have been extensively studied in the past years. Among the operational issues in DC microgrids, current sharing issues have become an important topic since it is highly relevant to the operation of DC microgrids. By adopting a proper design of current sharing strategy in DC microgrids, the current rating violations in each interface converter can be successfully avoided. In this paper, a looped-chain-based active current sharing strategy is proposed to realize high accuracy current sharing in DC microgrids. In particular, the output current is shared between the neighboring interface converters. Hence, following a clockwise or counter-clockwise order, a looped-chain-based control diagram can be established to share the reference value of the output current. A final status in the whole DC microgrid is that the output current of every interface converter is equalized. Hence, the desired current sharing objective can be satisfied. A MATLAB simulation model is established to verify the proposed looped-chain-based active current sharing strategy in DC microgrids.
A Classiffier for Unimodular Isolated Complete Intersection Space Curve Singularities
Authors: Afzal Deeba , Pfister Gerhard
Published: September 2017

C.T.C. Wall classified the unimodular complete intersection singularities. He indicated in the list only the μ-constant strata and not the complete classification in each case. In this article we give a complete list of space curve unimodular singularities and also the description of a classifier. Instead of computing the normal forms, the singularity is identified by certain invariants.
Existence and uniqueness of solutions for certain functional equations and system of functional equations arising in dynamic programming
Authors: Deepmala  , Agarwal Ravi P.
Published: September 2017

This paper deals with the existence, uniqueness and iterative approximations of solutions for the functional equations and system of functional equations arising in dynamic programming of multistage decision making processes in Banach spaces and complete metric space, respectively. The results presented in this paper unify and generalize many known results in the literature. Some examples which dwell upon the importance of our results are also illustrated.
Construction of composition (m, n, k)-hyperrings
Authors: Davvaz B. , Rakhsh-Khorshid N. , Shum K. P.
Published: September 2017

In this paper, our aim is to introduce the notion of a composition (m, n, k)-hyperring and to analyze its properties. We also consider the algebraic structure of (m, n, k) hyperrings which is a generalization of composition rings and composition hyperrings. Also, the isomorphism theorems of ring theory are derived in the context of composition (m, n, k)-hyperrings.
Drift perturbation’s influence on traveling wave speed in KPP-Fisher system
Authors: Dkhil Fathi , Mannoubi Bechir
Published: September 2017

This paper dressed the drift perturbation effects on the traveling wave speed in a reaction-diffusion system. We prove the existence of a traveling front solution of a KPP-Fisher equation and we show an asymptotic expansion of her speed. Finally, we discuss according all parameters of our system regions of the plane in which the traveling wave speed increases or decreases as a function of a small parameter ε.
Graded near-rings
Authors: Dumitru Mariana , Năstăsescu Laura , Toader Bogdan
Published: September 2017

In this paper, we consider graded near-rings over a monoid G as generalizations of graded rings over groups, and study some of their basic properties. We give some examples of graded near-rings having various interesting properties, and we define and study the Gop-graded ring associated to a G-graded abelian near-ring, where G is a left cancellative monoid and Gop is its opposite monoid. We also compute the graded ring associated to the graded near-ring of polynomials (over a commutative ring R) whose constant term is zero.
On Modules over Local Rings
Authors: Erdoğan Fatma Özen , Çiftçi Süleyman , Akpιnar Atilla
Published: September 2017

This paper is dealed with a special local ring A and modules over A. Some properties of modules, that are constructed over the real plural algebra, are investigated. Moreover a module is constructed over the linear algebra of matrix Mmm(ℝ) and one of its basis is found.
Eigenvalues for Finsler p-Laplacian with zero Dirichlet boundary condition
Authors: Fărcăşeanu Maria
Published: September 2017

In this paper we analyze the problem - Qpu(x) = λu(x) when x∈Ω with u(x) = 0 when x∈Ω , where Ω⊂ℝN is a bounded domain, Qp stands for Finsler p-Laplacian and \ {2} is a given real

number. Using adequate variational methods we show that the set of

eigenvalues of this problem is the interval (0, ∞).
Inversion of Weinstein intertwining operator and its dual using Weinstein wavelets
Authors: Gasmi Abdessalem , Ben Mohamed Hassen , Bettaibi Néji
Published: September 2017

In this paper, we consider the Weinstein intertwining operator ℜa, d
W and its dual tR a,d
W. Using these operators, we give relations between the Weinstein and the classical continuous wavelet transforms. Finally, using the Weinstein continuous wavelet transform, we deduce the formulas which give the inverse operators of R a,d
W and tR a,d
W.
Evolution of solutions for dipolar bodies in Thermoelasticity without energy dissipation
Authors: Marin Marin , Abbas Ibrahim
Published: September 2017

The aim of our paper is the study of the spatial evolution of vibrations in the context of Thermoelasticity without energy dissipation for dipolar bodies. Once we get an a priori estimate for the amplitude of the vibration, which are assumed being harmonic in time, it is possible to predict some spatial decay or growth properties for the amplitude, provided the frequency of vibration is greater than a certain critical value.
Some characteristic properties of analytic functions
Authors: Raina R. K. , Sharma Poonam , Sălăgean G. S.
Published: September 2017

In this paper, we consider a class L(λ, μ; ϕ) of analytic functions f defined in the open unit disk U satisfying the subordination condition that

,

where is the Sălăgean operator and ϕ(z) is a convex function with positive real part in U. We obtain some characteristic properties giving the coefficient inequality, radius and subordination results, and an inclusion result for the above class when the function ϕ(z) is a bilinear mapping in the open unit disk. For these functions f (z) ; sharp bounds for the initial coefficient and for the Fekete-Szegö functional are determined, and also some integral representations are given.
Relation Between Groups with Basis Property and Groups with Exchange Property
Authors: Khalaf Al Khalaf , Alkadhi Mohammed
Published: September 2017

A group G is called a group with basis property if there exists a basis (minimal generating set) for every subgroup H of G and every two bases are equivalent. A group G is called a group with exchange property, if x∉〈X〉 ⋀ x∈〈X∪{y}〉, then y∈〈X∪{x}〉, for all x, y ∈ G and for every subset X⊆G. In this research, we proved the following: Every polycyclic group satisfies the basis property. Every element in a group with the exchange property has a prime order. Every p-group satisfies the exchange property if and only if it is an elementary abelian p-group. Finally, we found necessary and sufficient condition for every group to satisfy the exchange property, based on a group with the basis property.
Prime filters of hyperlattices
Authors: Ameri Reza , Amiri-Bideshki M. , Saeid Arsham Borumand , Hoskova-Mayerova Sarka
Published: September 2017

The purpose of this paper is the study of prime ideals and prime filters in hyperlattices. I-filter and the filter generated by a ∈ L are introduced. Moreover, we introduce dual distributive hyperlattices, and I-filter in dual distributive hyperlattices. Some properties of hyperlat- tices are studied and the relationship between prime ideals and prime filters in hyperlattices is discussed.
On sortable intervals of monomials
Authors: Bonanzinga Vittoria , Eliahou Shalom
Published: September 2017

In 1996, in his study of Gröbner bases of toric ideals, Sturmfels introduced a sorting operator on pairs of monomials of degree d in n variables. This gave rise to the notion of sortable sets, namely sets B of monomials of degree d such that B×B is preserved by that operator. In this paper, we determine all lex-intervals or revlex-intervals of monomials which are sortable. The solution involves the notion of greatest common prefix.
Repdigits as Euler functions of Lucas numbers
Authors: Bravo Jhon J. , Faye Bernadette , Luca Florian , Tall Amadou
Published: September 2017

We prove some results about the structure of all Lucas numbers whose Euler function is a repdigit in base 10. For example, we show that if Ln is such a Lucas number, then n < 10111 is of the form p or p2, where p3 | 10p-1 -1.
Properties of a new integral operator
Authors: Bucur Roberta , Andrei Loriana , Breaz Daniel
Published: September 2017

In this paper, we derive sufficient conditions for the univalence, star- likeness, convexity and some other properties in the class N (ρ) ; for a new integral operator defined on the space of normalized analytic functions in the open unit disk.
On the number of diamonds in the subgroup lattice of a finite abelian group
Authors: Fodor Dan Gregorian , Tărnăuceanu Marius
Published: September 2017

The main goal of the current paper is to determine the total number of diamonds in the subgroup lattice of a finite abelian group. This counting problem is reduced to finite p-groups. Explicit formulas are obtained in some particular cases.
Flat local morphisms of rings with prescribed depth and dimension
Authors: Ionescu Cristodor
Published: September 2017

For any pairs of integers (n,m) and (d, e) such that 0 ≤ n ≤ m, 0 ≤ d _ e, d ≤ n, e ≤ m and n -d ≤ m - e we construct a local flat ring morphism of noetherian local rings u : A → B such that dim(A) = n; depth(A) = d; dim(B) = m and depth(B) = e.
Some properties of n-dimensional (∈γ, ∈γ, ∨qδ)-fuzzy subalgebra in BRK-algebras
Authors: Zulfiqar Muhammad
Published: September 2017

The purpose of this paper is to initiate the concept of n-dimensional (∈γ, ∈γ, ∨qδ)-fuzzy subalgebra in BRK-algebra and investigate some of their related properties. We also show that the relationship between n-dimensional (∈γ, ∈γ, ∨qδ)-fuzzy subalgebra and the crisp subalgebra in BRK-algebra are discussed.
Cartesian composition and the problem of generalizing the MAC condition to quasi-multiautomata
Authors: Chvalina Jan , Kŕehlík Štěpán , Novák Michal
Published: September 2017

When we assume that the input-set of an automaton without output is a semihypergroup instead of a monoid, we talk about quasi-multiautomata. Even though cartesian composition of quasi-automata is a commonly used concept, the cartesian composition of quasi-multiautomata has not been successfully constructed yet. In our paper we show that the straightforward transfer of the deffinition into the multivariate context fails. We suggest two possible solutions of this problem.
Popoviciu type inequalities for n-convex functions via extension of Montgomery identity
Authors: Khan Asif R. , Pečarić Josip , Praljak Marjan
Published: September 2017

Extension of Montgomery's identity is used in derivation of Popoviciu-type inequalities containing sums , where f is an n-convex function. Integral analogues and some related results for n-convex functions at a point are also given, as well as Ostrowski-type bounds for the integral remainders of identities associated with the obtained inequalities.
Effect of internal state variables in thermoelasticity of microstretch bodies
Authors: Marin Marin , Vlase Sorin
Published: September 2017

First, we formulate the mixed initial boundary value problem in the theory of thermoelastic microstretch bodies having certain internal state variables. Then by using some approachable computing techniques and the known Gronwall's inequality we will prove that the presence of internal state variables do not influence the uniqueness of solution of the mixed problem.
A Fixed Point in Partial Sb-Metric Spaces
Authors: Souayah Nizar
Published: September 2017

In this paper, we introduce an interesting extention of the partial b-metric spaces called partial Sb-metric spaces, and we show the existence of fixed point for a self mapping defined on such spaces.
Multiplicative hyperring of fractions and coprime hyperideals
Authors: Ameri R. , Kordi A. , Hoskova-Mayerova S.
Published: September 2017

In this paper we will introduce the notion of coprime hyperideals in multiplicative hyperrings and we will show some properties of them. Then we introduce the notion of hyperring of fractions generated by a multiplicative hyperring and then we will show some properties of them.
Weaker assumptions for convergence of extended block Kaczmarz and Jacobi projection algorithms
Authors: Carp Doina , Pomparău Ioana , Popa Constantin
Published: September 2017

Recent developments in the field of image reconstruction have given rise to the use of projective iterative methods, such as Kaczmarz and Jacobi, when solving inconsistent linear least squares problems. In this paper we try to generalize previous results concerning extended block versions of these two algorithms. We replace the inverse operator with the Moore-Penrose pseudoinverse and try to prove convergence under weaker assumptions. In order to accomplish this task, we show that these algorithms are special cases of a general iterative process for which convergence is already established.
Numerical Range on Weighted Hardy Spaces as Semi Inner Product Spaces
Authors: Heydari Mohammad Taghi
Published: September 2017

The semi-inner product, in the sense of Lumer, on weighted Hardy space which generate the norm is unique. Also we will discuss some properties of the numerical range of bounded linear operators on weighted Hardy spaces.
Modules which are self-p-injective relative to projection invariant submodules
Authors: Kara Yeliz , Tercan Adnan
Published: September 2017

In this article, we focus on modules M such that every homomorphism from a projection invariant submodule of M to M can be lifted to M. Although such modules share some of the properties of PI -extending (i.e., every projection invariant submodule is essential in a direct summand) modules, it is shown that they form a substantially bigger class of modules.
On monodromy representation of period integrals associated to an algebraic curve with bi-degree (2,2)
Authors: Tanabé Susumu
Published: September 2017

We study a problem related to Kontsevich's homological mirror symmetry conjecture for the case of a generic curve Y with bi-degree (2,2) in a product of projective lines ℙ1 × ℙ1. We calculate two differenent monodromy representations of period integrals for the affine variety X(2,2) obtained by the dual polyhedron mirror variety construction from Y. The first method that gives a full representation of the fundamental group of the complement to singular loci relies on the generalised Picard-Lefschetz theorem. The second method uses the analytic continuation of the Mellin-Barnes integrals that gives us a proper subgroup of the monodromy group. It turns out both representations admit a Hermitian quadratic invariant form that is given by a Gram matrix of a split generator of the derived category of coherent sheaves on on Y with respect to the Euler form.
Existence results for fractional differential inclusions with Erdélyi-Kober fractional integral conditions
Authors: Ahmad Bashir , Ntouyas Sotiris K.
Published: September 2017

In this paper, we discus the existence of solutions for Riemann- Liouville fractional differential inclusions supplemented with Erdélyi- Kober fractional integral conditions. We apply endpoint theory, Krasnoselskii’s multi-valued fixed point theorem and Wegrzyk's fixed point theorem for generalized contractions. For the illustration of our results, we include examples.
Hypergroups associated with HX-groups
Authors: Corsini Piergiulio
Published: September 2017

We have already studied a correspondence between HX-groups and hypergroups. Now we extend this correspondence to semigroups of sub- sets of a group G (and to begin, we considered ℤ2 × ℤ3 as group G). Moreover these subsets can have non empty intersection, they can be contained, one in another one. One calculates the fuzzy grade and we find always ∂H = 1.
A note on composition (m, n)-hyperrings
Authors: Norouzi Morteza , Cristea Irina
Published: September 2017

Based on the concepts of composition ring and composition hyper- ring, in this note we introduce the notion of composition structure for (m, n)-hyperrings and study the connections with composition hy- perrings. Moreover we show that particular strong endomorphisms of (m, n)-hyperrings can determine the composition structure of a such (m, n)-hyperrings. Finally, the three isomorphism theorems are pre- sented in the case of composition (m, n)-hyperrings, showing that they are not a pure extension of those for composition hyperrings.
An Operator Extension of Čebyšev Inequality
Authors: Moradi Hamid Reza , Omidvar Mohsen Erfanian , Dragomir Silvestru Sever
Published: September 2017

Some operator inequalities for synchronous functions that are related to the čebyšev inequality are given. Among other inequalities for synchronous functions it is shown that ∥ø(f(A)g(A)) - ø(f(A))ø(g(A))∥ ≤ max{║ø(f2(A)) - ø2(f(A))║, ║ø)G2(A)) - ø2(g(A))║} where A is a self-adjoint and compact operator on B(ℋ ), f, g ∈ C (sp (A)) continuous and non-negative functions and ø: B(ℋ ) → B(ℋ ) be a n-normalized bounded positive linear map. In addition, by using the concept of quadruple D-synchronous functions which is generalizes the concept of a pair of synchronous functions, we establish an inequality similar to čebyšev inequality.
Topological Transversality Principles and General Coincidence Theory
Authors: O’Regan Donal
Published: September 2017

This paper presents general topological coincidence principles for multivalued maps defined on subsets of completely regular topological spaces.
Local convergence of a multi-step high order method with divided differences under hypotheses on the first derivative
Authors: Argyros Ioannis K. , George Santhosh
Published: September 2017

This paper is devoted to the study of a multi-step method with divided differences for solving nonlinear equations in Banach spaces. In earlier studies, hypotheses on the Fréchet derivative up to the sixth order of the operator under consideration is used to prove the convergence of the method. That restricts the applicability of the method. In this paper we extended the applicability of the sixth-order multi-step method by using only hypotheses on the first derivative of the operator involved. Our convergence conditions are weaker than the conditions used in earlier studies. Numerical examples where earlier results cannot be applied to solve equations but our results can be applied are also given in this study.
Concepts of Citizenship in Eastern and Western Europe
Authors: Oltay Edith
Published: September 2017

The classical meaning of citizenship evokes a nation-state with a well-defined territory for its nationals, where national identity and sovereignty play a key role. Global developments are challenging the traditional nation-state and open a new stage in the history of citizenship. Transnational citizenship involving dual and multiple citizenships has become more and more accepted in Europe. Numerous scholars envisaged a post-national development where the nation-state no longer plays a key role. While scholarly research tended to focus on developments in Western Europe, a dynamic development also took place in Eastern Europe following the collapse of communism. Dual citizenship was introduced in most Eastern European countries, but its purpose was to strengthen the nation by giving the ethnic kin abroad citizenship and non-resident voting rights. In Western Europe, the right of migrants to citizenship has been expanded throughout the years in the hope that this would result in their better integration into society. Eastern Europe and Western Europe operate with different concepts of citizenship because of their diverging historical traditions and current concerns. The concept of nation and who belong to the national community play a key role in the type of citizenship that they advocate.
Adaptation Strategies to Turkish Society of Europeans Married to Turkish Citizens
Authors: Gojkovic Turunz Nevena
Published: September 2017

Accelerated and increasingly complex patterns of international migration are correlated with the emergence of various types of transnational families and an ever-rising number of culturally and ethnically mixed couples. Once a typical emigration country, Turkey has recently been established as a transit and receiving society, where numerous Europeans settle due to emotional ties with Turkish citizens. This paper is based on a qualitative study of 10 mixed European-Turkish families based in Istanbul, carried out through in-depth interviews. The paper is divided into three parts. First, it examines the social characteristics of the research participants. Second, it analyses the reactions of family and friends to the mixed relationship. Third, it discusses four adaptation strategies of foreign partners to Turkish society – namely, integration, assimilation, separation, and marginalization.
Privatizing Multi-subsidiary Public Firm in Location Model
Authors: Chen Jingliang , Shuai Jie
Published: September 2017

This paper examines a different way of privatization from existing literature. In a mixed duopoly Hotelling type model in which the public firm consists of multiple subsidiaries, instead of privatizing the public firm as its entirety, the government may privatize only one of the subsidiaries (for example the manufacturing subsidiary). We find that this kind of privatization always improves social welfare comparing to no privatization at all. And comparing to privatizing the public firm in its entirety, privatizing only the manufacturing subsidiary always results in larger consumer welfare and results in larger social welfare when transport cost or R&D cost is sufficiently large.
The functional role of exosome microRNAs in lung cancer
Authors: Li Jia , Gong Wenhuan , Zhu Wenfang , Shao Xinyu , Zhang Chunxia
Published: September 2017

Lung cancer causes the highest incidence and mortality rates of cancer disease worldwide. Despite obvious advances in lung cancer research, a better understanding of the disease is urgently needed to improve early detection and correct diagnoses. Exosomes are released from cancer cells and modulate cell-cell communication. Exosomes transfer a wide variety of molecules including microRNAs. MicroRNAs (miRNAs) are single-stranded, small noncoding RNAs that regulate gene expression. Accumulating evidence indicates that miRNA expression patterns represent the status of physiology and disease. The focus of this review is to provide an update on the progress of miRNAs of cancer-derived exosome as potential biomarkers for lung cancer.
Global decomposition of GL(3) Kloosterman sums and the spectral large sieve
Authors: Blomer Valentin , Buttcane Jack
Published: September 2017

We prove best-possible bounds for bilinear forms in Kloosterman sums forGL⁡(3)\operatorname{GL}(3)associated with the long Weyl element. As an application we derive a best-possible spectral large sieve inequality onGL⁡(3)\operatorname{GL}(3).
Drei Varianten des Paradoxons der Nicht-Existenz
Authors: Rami Dolf
Published: September 2017

The original version of the philosophical paradox of non-existence can be found in Plato’s dialogSophist. Different ancient and medieval philosophers discussed this problem and proposed their own solutions to it. As far as I know, the problem had no important impact on the discussions about the notion of existence in the early modern period between Descartes and Frege. Philosophical interest in the notion of existence in this period was mainly driven by discussions on the ontological argument for the existence of God. Meinong and Russell are responsible for a renaissance of this paradox in the 20th century. Russell shaped two new semantic versions of the paradox. In this paper, I will discuss and introduce three different versions of it. Firstly, the original version, which can be found in theSophist. Secondly, the two more recent and sophisticated semantic versions that concern the semantics of (a) general negative existential sentences like “Unicorns do not exist” and (b) singular negative existential sentences like “Pegasus does not exist”. Philosophical discussion of the paradox in the Analytic Tradition has mainly focused in the last decades on the version related to (b). Concerning the version related to (a), there is a general consensus that Russell convincingly solved it. However, I will show that Russell’s solution of this version of the paradox is problematic, and I will argue for an alternative uniform solution to both semantic versions of the paradox based on free logic.
„Republikanismus ist heute ein Rassismus für Intellektuelle“
Authors: Rancière Jacques , Christ Julia , Ogilvie Bertrand
Published: September 2017

In the following interview, Jacques Rancière discusses his political philosophy, explains central concepts of his thinking – such as equality – and positions himself in the field of contemporary political and social philosophy. For the first time ever, he comments at length on his complex relationship to the social sciences and thus gives an insight into a transformation of his thinking which at the moment situates the scenes of equality – and thus, politics – more in the domain of the visible than in the domain of the audible.
Neues zur Theorie des Gerechten Krieges: Die Wende zum Soldaten und Fragen der Kriegsmoral
Authors: Kallhoff Angela , Schulte-Umberg Thomas
Published: September 2017

In Just War Theory, the leading paradigm is a normative assessment of war among nation states. As an effect of that perspective, the duties and obligations of soldiers as well as the issues of culpability have received only very little attention. Recently, philosophers have questioned this restriction in order to discuss war ethics from a different angle. Research now focuses on the single soldier’s decisions on the battlefield and their moral assessment. This paper looks at the “criterion of liability” introduced by Jeff McMahan. It explains consequences of this new approach to war ethics, including the focus on reason-giving narratives. An interdisciplinary framework introduces recent historical findings on the single soldier’s “morality”. This paper argues that the shift of attention gives insight into the many facets of “morality” in the context of war.
The Effects of Orienting Instructions on Readers’ Ability to Recall Literal Information from Expository Texts
Authors: Alnajashi Sumyah
Published: September 2017

This study aimed to examine whether instructing readers to judge text information can impair or facilitate their ability to recall information from expository texts of different genres. Experiment One used four expository texts and examined three types of orienting instructions: To answer pre-text questions, to be prepared to answer questions after the reading the text, to be prepared to judge the knowledge introduced in the text. The results of the study indicated that the use of pre-text questions did not improve readers’ performance in a recall test; in fact, they impaired the readers’ overall recall ability. However, being forewarned that they would be asked to provide a judgment on the information contained within a passage after reading it did enhance the participants’ ability to recall information from expository texts. Experiment 2 used the same four expository texts and examined the relationship between text recall and participants’ judgement of text information with particular cognitive abilities. The results reveal variations in the patterns of correlations between recall and rating of the text and other cognitive factors across the different text genres. The outcomes and implications of this research are discussed in this paper.
Influence of Teachers Performance Appraisal Policy on Timeliness in Implementation of the curriculum in Public Secondary Schools in Kenya
Authors: Aloo Joash Okello , Ajowi Jack Odongo , Aloka Peter Jairo O.
Published: September 2017

The study investigated the influence of Teachers Performance Appraisal (TPA) policy on timeliness in the implementation of the curriculum in Public Secondary Schools in Kenya. The study adopted an Ex post facto design. Additionally, the study population consisted of 5450 teachers, 334 Principals, the TSC-County Director and 334 Deputy Principals of public secondary schools. Stratified random sampling technique was used to select 179 Principals and 179 Deputy Principals. Questionnaires were used to collect data from the Principals and Deputy Principals. Document analysis guide was used to collect data which was not readily obtained through questionnaires. Reliability of the instruments for data collection was tested by assessing the scale’s internal consistency using Crobanch’s alpha and reliability coefficient of at least 0.7 was achieved in all the sub-scales of the questionnaire. Validity was determined by experts in Educational Administration. Quantitative data from questionnaires was analyzed by using inferential statistics, for instance, Linear Regression analysis and Pearson Correlation. The study established that TPA policy had a positive significant influence on; timeliness in curriculum implementation (r=.604, p<.05), curriculum evaluation by teachers (r =.726, p<.05). The TPA was established to be a significant predictor of the timelines in curriculum implementation [F (1, 316) = 181.90, p < .05]. The study recommends that TSC should enforce TPA policy and use it as a tool for promoting and deploying teachers into leadership positions. The study recommends that the Ministry of Education should guide every school to come up with syllabus coverage monitoring tool that can be administered alongside TPA.
Computer Analysis of Glioma Transcriptome Profiling: Alternative Splicing Events
Authors: Babenko Vladimir N. , Gubanova Natalya V. , Bragin Anatoly O. , Chadaeva Irina V. , Vasiliev Gennady V. , Medvedeva Irina V. , Gaytan Alexey S. , Krivoshapkin Alexey L. , Orlov Yuriy L.
Published: September 2017

Here we present the analysis of alternative splicing events on an example of glioblastoma cell culture samples using a set of computer tools in combination with database integration. The gene expression profiles of glioblastoma were obtained from cell culture samples of primary glioblastoma which were isolated and processed for RNA extraction. Transcriptome profiling of normal brain samples and glioblastoma were done by Illumina sequencing. The significant differentially expressed exon-level probes and their corresponding genes were identified using a combination of the splicing index method. Previous studies indicated that tumor-specific alternative splicing is important in the regulation of gene expression and corresponding protein functions during cancer development. Multiple alternative splicing transcripts have been identified as progression markers, including generalized splicing abnormalities and tumor- and stage-specific events. We used a set of computer tools which were recently applied to analysis of gene expression in laboratory animals to study differential splicing events. We found 69 transcripts that are differentially alternatively spliced. Three cancer-associated genes were considered in detail, in particular: APP (amyloid beta precursor protein), CASC4 (cancer susceptibility candidate 4) and TP53. Such alternative splicing opens new perspectives for cancer research.
Analysis and Design of Coherent Combining of two Q-Switched Fiber Laser in Mach-Zehnder Type Cavity
Authors: Nassiri Ali , Idrissi-Saba Hafida , Boulezhar Abdelkader
Published: September 2017

In this work, we have developed an analytical model of an actively Q-switched Ytterbium-doped fiber laser by using two coupled cavities with amplifying fibers in Mach–Zehnder interferometer configuration. This oscillator system provides high peak power and high energy nanosecond pulse. The pulse energy is almost twice the energy of an individual fiber laser with a combining efficiency goes up 99%. This concept brings some novel perspectives for scaling the high energy and high peak power of nanosecond pulse fiber laser.
The Relation of Learning Styles, Learning Interests and Learning Methods Used by Students with the Level of Emotional Intelligence and Grade among Students: Case Study of Economy Class at Smk Ma’arif Malang, Indonesia
Authors: Kustiani Lilik , Brihandhono Ari
Published: September 2017

The developed country is characterized by an educated nation, a nation whose people are fond of learning. To improve the quality of education is not only achieved by improving teacher competence, but we need to study it from the students’ point of view. This paper aims to examine the relationship between learning styles, learning interests and learning methods used by students with the level of emotional intelligence among students of Economy Class at SMK Ma’Arif Malang, Indonesia and its impact on student value. The questionnaire was conducted in Economy class at Ma’Arif vocational school in Malang Indonesia, with 32 students. 45.4% of student achievement is positively influenced by emotional intelligence or EQ, learning interest and learning style, while 54.6% is influenced by things beyond variables such as teacher ability, student ability, family condition, teacher attitudes, infrastructure and etc. in.
Segmentation and Perceived Value of a Tourist Destination: The Case of Dominican Republic
Authors: Tenor Peña María de los Ángeles , Pérez Gálvez Jesús Claudio , López-Guzmán Tomás , Medina Viruel Miguel Jesús
Published: September 2017

The main objective of this paper is to make an analysis of the relationships between three fundamental constructs in every tourist destination - the perceived value of the attributes of destination, satisfaction and loyalty. Taking into account the perceived value of the tourists who visit this country, three types of visitors have been identified that are considered valid and useful for segmenting the Dominican Republic as a tourist destination: a high perception tourist, a tourist average and a low perception tourist. The attributes valued by the tourists reveal that the perceptive dimension relates to the tourism services and infrastructures of a destination discriminate in a significant way in the degree of satisfaction and attitudinal loyalty declared by the visitors. The conclusions show the need to consider the perceived value of the satisfied and loyal tourist as an essential tool for the Dominican Republic to continue to grow as a tourist destination.
The Effect of Social Media on Identity Construction
Authors: Gündüz Uğur
Published: September 2017

The social media platforms have a growing importance in our lives since they are the places where we “showcase” our living experiences. They also reflect a variety of dimensions regarding our position in the virtual and physical social life. Both of these factors make people to play certain characters in the social arena. The Social Network is gaining more and more importance in today’s world and has a deeper impact on the society as to the traditional media. Social media enables identity expression, exploration, and experimentation; something natural for the human experience. It is the agencies in real life, which provide a source of names for different sectors, that inspire the internet communities and the interactions they make within themselves. It is essential to comprehend the motives of agencies to have an understanding of the group interactions on social platforms. The enable individuals present themselves to others and determine the way they would like to be perceives in addition to helping them connect and interact with people, and participate in the activities they wish. Communicating online offers many ways to connect with others: individuals may or may not use their real names, and they can open as many accounts as they want to. This study explores practical aspects of identity construction, relating to issues virtual communities and social media. It also analyzes the probable reasons that individuals feel the need to create a virtual identity for themselves as well as “the spiral of transformation”, that is, the creation period goes ahead of the internet to reach the real life. This study also aims at concentrating on the virtual communities appearing in the social networks while questioning their social and cultural qualities and values.
Availability and Utilization of ICT Resources in Teaching Computer Education in Secondary Schools in Anambra State, Nigeria
Authors: Nwana S.E. , Ofoegbu T.O. , Egbe C. I.
Published: September 2017

The study investigated the availability and utilization of ICT resources in the teaching of Computer Education among Secondary School Teachers in Anambra State. Two research questions guided the study. The population consisted of 450 computer teachers teaching computer education in the schools. From the population, 300 computer teachers were sampled and used for the study. The instrument for data collection was a self-developed 40 – item questionnaire. It was validated by experts and the reliability co-efficient stood at 0.79. The data collected were analysed using frequencies and percentages. The findings revealed that many of the ICT resources needed for the teaching of computer education are not available. It was also revealed that majority of the resources needed for the teaching of computer education are not being used by the teachers. In view of the findings, recommendations were made.
A Critique of John Hick’s Multiple Incarnation: Theology and Christian Approach to Religious Dialogue
Authors: Okwuosa Lawrence Nwachukwu , Nwaoga Chinyere Theresa , Uroko Favour C.
Published: September 2017

The question of Christ’s divine nature is one issue that has caused ripples among the religions of the world. While it is the ground of Christian beliefs and explained as the doctrine of the divine incarnation of God’s only Son into the world, for some people it is faith taken too far. As intellectual ink is being spilt on Christ’s divine incarnation, John Hick, a theologian of great repute, argues of a multiple metaphorical incarnations that include Jesus Christ and other prophetic voices in the religious circle. This has heightened the question and the need to investigate this theological issue. Hence, this paper aims at not only denying the possibility of multiple incarnations, which would distort the entire Christian teaching but also demonstrates how Christ’s incarnation is a witnessed non-metaphoric belief. For this purpose, the paper adopts descriptive phenomenology in its methodology.
Comparison of the oxidative stress response of two Antarctic fungi to different growth temperatures
Authors: Kostadinova Nedelina , Tosi Solveig , Spassova Boryana , Angelova Maria
Published: September 2017

Two fungal strains, isolated from Livingston Island, Antarctica (Penicillium commune 161, psychrotolerant and Aspergillus glaucus 363, mesophilic) were investigated for a relationship between growth temperature and oxidative stress response. Cultivation at temperatures below – (10 and 15°C and 10 and 20°C for P. commune and A. glaucus, respectively) and above (25°C and 30°C for P. commune and A. glaucus, respectively) the optimum caused significant difference in growth and glucose uptake in comparison with the control cultures. Enhanced level of reserve carbohydrates (glycogen and trehalose) was determined under cultivation at different temperatures from the optimal one. While the highest content of trehalose was found in the exponential phase, glycogen accumulation was observed in the stationary phase when growth conditions deteriorate. The growth at temperature below– and above–optimum caused strain–dependent changes in two antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT). While SOD activity in the psychrotolerant strain increases with decreasing of growth temperature, the mesophilic A. glaucus demonstrated marked reduction of it at below– and above–optimal temperature. Decreasing trend of CAT activity was observed in both strains below the optimal temperature indicating a lack of antioxidant protection from this enzyme under the cold stress conditions.
Radionuclide activities in sediments on the northern coast of Spitsbergen
Authors: Wojtasik Barbara , Świrydowicz Sławomir , Burska Dorota , Nowiński Kamil
Published: September 2017

The specific activity of natural gamma emitters like actinium (228Ac), bismuth (212Bi,214Bi), lead (212Pb,214Pb), potassium (40K), radium (224Ra), thallium (208Tl) and artificial radioisotope caesium (137Cs) was measured in 2005 in the surface layer of marine sediments in the northern Svalbard: Wijdefjorden, Woodfjorden, Vestfjorden and Bockfjorden as well as in the freshwater reservoirs in Andre Land. Nonuniform spatial distribution of these radionuclides was found. Sediment sample from Bockfjorden had the highest specific activities of all natural radionuclides. The specific radioactivity of137Cs was much lower than specific radioactivities of natural radionuclides but there were differences between investigated locations. The distribution of137Cs is similar to persistent organic pollutants of the lake sediments in the area.
Soil polychemical contamination on Beliy Island as key background and reference plot for Yamal region
Authors: Abakumov Evgeny , Shamilishviliy Georgy , Yurtaev Andrey
Published: September 2017

Background concentrations of main trace elements and polycyclic aromatic hydrocarbons (PAHs) were investigated in pristine soils of the Beliy Island situated in the Kara Sea, Yamal autonomous region, North-West Siberia, Russia. Belyi Island is considered as reference landscpae for further investigation of soil polychemical contamination of the Yamal region. Three plots with different functional load (mature ecosystem, occasionally and permanently affected plots) were investigated with aim to evaluate the trend of long term polychemical effect on Stagnic Cryosols – benchmark soil type of the Yamal region. Accumulation of trace elements was not fixed in all soils investigated due to absence of direct sources of heavy metals on the territory of the Beliy Island. At the same time, there were essential alterations of PAHs fractional composition and content due to pronounced accumulation of the petroleum products combustion in the vicinity of the permanent meteorological station and former seasonal field base. The most intensive and statistically significant accumulation was noted for phenanthrene, anthracene, benzo[k]fluoranthene and benzo[a]pyrene. This indicates accumulation of the PAHs in soils, affected by the anthropogenic activity on the meteorological station. The most pronounced differences were revealed for the superficial layer of 0–5 cm. Deeper horizons of soil did not show accumulation of contaminants. Data obtained can be used for organization of further monitoring of contamination of soils and landscapes in Yamal as developing and industrial region.
Determination of the Explosion Characteristics of Wheat Flour
Authors: Kuracina Richard , Szabová Zuzana , Pangrácová Denisa , Balog Karol
Published: September 2017

The article deals with the measurement of explosion characteristics of wheat flour. The measurements were carried out according to STN EN 14034-1+A1:2011 Determination of explosion characteristics of dust clouds. Part 1: Determination of the maximum explosion pressure pmax of dust clouds, the maximum rate of explosion pressure rise according to STN EN 14034-2+A1:2012 Determination of explosion characteristics of dust clouds - Part 2: Determination of the maximum rate of explosion pressure rise (dp/dt)max of dust clouds and LEL according to STN EN 14034-3+A1:2011 Determination of explosion characteristics of dust clouds: Determination of the lower explosion limit LEL of dust clouds. The testing of explosions of wheat flour dust clouds showed that the maximum value of the pressure was reached at the concentrations of 600 g/m3 and its value is 8.32 bar/s. The fastest increase of pressure was observed at the concentration of 750 g/m3 and its value was 54.2 bar/s.
Study of Wastewaters Contaminated with Heavy Metals in Bioethanol Production
Authors: Bartošová Alica , Blinová Lenka
Published: September 2017

Bioethanol as a substitute for traditional sources of energy, especially oil transport, is currently one of the most researched alternative motor fuels. Normally, bioethanol is produced from agricultural crops such as sugar cane or corn. However, this is counter-productive, because agriculture is primarily serving to ensure enough food for the people. It is therefore necessary to look for new production of appropriate non-food crops or find an added value to this process. Utilisation of contaminated water from metal industry could be one of them. Based on the hypothesis of reduction of some toxic metals with higher oxidation number is opening the possibility of using this wastewater in alcohol fermentation of any kind of biomass. In this study, hexavalent chromium Cr(VI) was used as a model contaminant in the process of aerobic fermentation of corn to bioethanol. To determine the reduction potential of glucose to Cr(VI), and to quantitatively determinate the glucose content after saccharification, UV/VIS spectrophotometry was used. As a method of qualitative determination of fermentation product, gas chromatography with mass detection was used. Infrared spectrometry was used for qualitative analyses of produced ethanol. Based on the established results shown in this paper, we can conclude that the presence of hexavalent chromium in the fermentation process does not have a significant negative impact, while offering the opportunity of using the industrial wastewaters for the production of bioethanol fuel.
On the Dynamic Response Prediction at the Full-Scale Test of Aircraft Component
Authors: Pavelko Vitālijs , Nevskij Aleksandr
Published: September 2017

Several general effects of boundary conditions and their adequate description at structural dynamic computational simulation constitute the main subject of the discussion. First, an analytical model of elastically supported beam was considered to evaluate the effects of support compliance to the basic dynamic characteristics. Second, a more complex model of a body with elastic support was simulated. Some general properties of structure dynamics were analysed.
Flight Safety During the Aircraft’s Motion Along the Runway Line
Authors: Šlihta Mareks , Karunanidhi Ramachandran
Published: September 2017

The main purpose of this article is to identify and prevent problems related to the flight path diversion on the runway centre line while landing.
Plotting the Flight Envelope of an Unmanned Aircraft System Air Vehicle
Authors: Glīzde Nikolajs
Published: September 2017

The research is focused on the development of an Unmanned Aircraft System. One of the design process steps in the preliminary design phase is the calculation of the flight envelope for the Unmanned Aircraft System air vehicle. The results obtained will be used in the further design process. A flight envelope determines the minimum requirements for the object in Certification Specifications. The present situation does not impose any Certification Specification requirements for the class of the Unmanned Aircraft System under the development of the general European Union trend defined in the road map for the implementation of the Unmanned Aircraft System. However, operation in common European Aerospace imposes the necessity for regulations for micro class systems as well.