bluuebunny/crossref_metadata_2025 huggingface dataset:
Risco de ortorexia nervosa e o comportamento alimentar de estudantes de nutrição
Authors: Rodrigues Barbara Coêlho , Oliveira Georgia Nicoli Souza de , Silva Emerson Iago Garcia e , Messias Cristhiane Maria Bazílio de Omena
Published: September 2017

Ortorexia Nervosa é um desvio alimentar que envolve obsessividade patológica por alimentação saudável. O objetivo do presente estudo foi avaliar o comportamento de risco para desenvolvimento de ortorexia nervosa e o comportamento alimentar de estudantes de bacharelado em Nutrição. Trata-se de uma pesquisa de campo quantitativa, tipo descritivo e transversal, desenvolvida entre agosto de 2015 e julho de 2016, com discentes do curso de Nutrição. Os instrumentos utilizados foram o Orto-15, para avaliar o comportamento de risco para desenvolver ortorexia nervosa, e o questionário de frequência alimentar, para investigação do consumo alimentar. Grande parte dos discentes apresentaram traços de ortorexia nervosa, sendo o sexo masculino com maior prevalência. Não houve associação estatística significativa entre os grupos dos diferentes semestres analisados, nem quanto ao sexo. Também foi observada inadequação de hábitos alimentares. Faz-se necessário, portanto, uma conscientização e abordagem acerca do tema, em especial aos que lidam com a promoção da saúde, por atuarem diretamente com os possíveis grupos de risco.
On the first Zagreb index and multiplicative Zagreb coindices of graphs
Authors: Das Kinkar Ch. , Akgunes Nihat , Togan Muge , Yurttas Aysun , Cangul I. Naci , Cevik A. Sinan
Published: September 2017

For a (molecular) graph G with vertex set V (G) and edge set E(G), the first Zagreb index of G is defined as , where dG(vi) is the degree of vertex vi in G. Recently Xu et al. introduced two graphical invariants and named as first multiplicative Zagreb coindex and second multiplicative Zagreb coindex, respectively. The Narumi-Katayama index of a graph G, denoted by NK(G), is equal to the product of the degrees of the vertices of G, that is, NK(G) = . The irregularity index t(G) of G is defined as the number of distinct terms in the degree sequence of G. In this paper, we give some lower and upper bounds on the first Zagreb index M1(G) of graphs and trees in terms of number of vertices, irregularity index, maxi- mum degree, and characterize the extremal graphs. Moreover, we obtain some lower and upper bounds on the (first and second) multiplicative Zagreb coindices of graphs and characterize the extremal graphs. Finally, we present some relations between first Zagreb index and Narumi-Katayama index, and (first and second) multiplicative Zagreb index and coindices of graphs.
Fuzzy soft set approach to ideal theory of regular AG-groupoids
Authors: Feng Feng , Khan Madad , Leoreanu-Fotea Violeta , Anis Saima , Ajaib Nadeem
Published: September 2017

This paper aims to apply fuzzy sets and soft sets in combination to investigate algebraic properties of regular AG-groupoids. We initiate (∈γ; ∈γ qδ)-fuzzy soft left ideals (right ideals, bi-ideals and quasi-ideals) over AG-groupoids and explore some related properties. Moreover, we give a number of characterizations for regular AG-groupoids by virtue of various types of fuzzy soft ideals over them.
Matkowski theorems in the context of quasi-metric spaces and consequences on G-metric spaces
Authors: Karapιnar Erdal , Roldán-López-de-Hierro Antonio-Francisco , Samet Bessem
Published: September 2017

In this paper, we prove the characterization of a Matkowski's theorem in the setting of quasi-metric spaces. As a result, we observe that some recent fixed point results in the context of G-metric spaces are

consequences of our main result.
A Parametric Network Approach for Concepts Hierarchy Generation in Text Corpus
Authors: Sângeorzan L. S. , Parpalea M. M. , Parpalea M.
Published: September 2017

The article presents a preflow approach for the parametric maximum flow problem, derived from the rules of constructing concepts hierarchy in text corpus. Just as generating a taxonomy can be equivalently reduced to ranking concepts within a text corpus according to a defined criterion, the proposed preflow bipush-relabel algorithm computes the maximum flow - the optimum ow that respects certain ranking constraints. The parametric preflow algorithm for generating two level concepts hierarchy in text corpus works in a parametric bipartite association network and, on each step, the maximum possible amount of ow is pushed along conditional augmenting two-arcs directed paths in the parametric residual network, for the maximum interval of the parameter values. The obtained parametric maximum ow generates concepts hierarchies (taxonomies) in text corpus for different degrees of association values described by the parameter values.
Approximating Fixed Points of Nonself Contractive Type Mappings in Banach Spaces Endowed with a Graph
Authors: Balog Laszlo , Berinde Vasile , Păcurar Mădălina
Published: September 2017

Let K be a non-empty closed subset of a Banach space X endowed with a graph G. We obtain fixed point theorems for nonself G-contractions of Chatterjea type. Our new results complement and extend recent related results [Berinde, V., Păcurar, M., The contraction principle for nonself mappings on Banach spaces endowed with a graph, J. Nonlinear Convex Anal. 16 (2015), no. 9, 1925-1936; Balog, L., Berinde, V., Fixed point theorems for nonself Kannan type contractions in Banach spaces endowed with a graph, Carpathian J. Math. 32 (2016), no. 3 (in press)] and thus provide more general and flexible tools for studying nonlinear functional equations.
Computing abelian subalgebras for linear algebras of upper-triangular matrices from an algorithmic perspective
Authors: Ceballos Manuel , Núñez Juan , Tenorio Ángel F.
Published: September 2017

In this paper, the maximal abelian dimension is algorithmically and computationally studied for the Lie algebra hn, of n×n upper-triangular matrices. More concretely, we define an algorithm to compute abelian subalgebras of hn besides programming its implementation with the symbolic computation package MAPLE. The algorithm returns a maximal abelian subalgebra of hn and, hence, its maximal abelian dimension. The order n of the matrices hn is the unique input needed to obtain these subalgebras. Finally, a computational study of the algorithm is presented and we explain and comment some suggestions and comments related to how it works.
On the binomial edge ideals of block graphs
Authors: Chaudhry Faryal , Dokuyucu Ahmet , Irfan Rida
Published: September 2017

We find a class of block graphs whose binomial edge ideals have minimal regularity. As a consequence, we characterize the trees whose binomial edge ideals have minimal regularity. Also, we show that the binomial edge ideal of a block graph has the same depth as its initial ideal.
Closed orders and closed graphs
Authors: Crupi Marilena
Published: September 2017

The class of closed graphs by a linear ordering on their sets of vertices is investigated. A recent characterization of such a class of graphs is analyzed by using tools from the proper interval graph theory.
Extremal problem on (2n, 2m – 1)-system points on the rays
Authors: Targonskii Andrey
Published: September 2017

In this work derivation of accurate estimate the production inner radius non-overlapping domains and open set. The problems arise such type in the first time in work [1]. It is late result this work generalize and strengthen in works [2 - 13]. In works [7, 8, 10] introduce the general systems points, the name n-radial systems points. In this work a success the draw generalize some results the work [7].
A Liouville type theorem for a class of anisotropic equations
Authors: Barbu Luminiţa , Enache Cristian
Published: September 2017

In this paper we are dealing with entire solutions of a general class of anisotropic equations. Under some appropriate conditions on the data, we show that the corresponding equations cannot have non-trivial positive solutions bounded from above.
On the Consimilarity of Split Quaternions and Split Quaternion Matrices
Authors: Kösal Hidayet Hüda , Akyiğit Mahmut , Tosun Murat
Published: September 2017

In this paper, we introduce the concept of consimilarity of split quaternions and split quaternion matrices. In his regard, we examine the solvability conditions and general solutions of the equations and in split quaternions and split quaternion matrices, respectively. Moreover, coneigenvalue and coneigenvector are defined for split quaternion matrices. Some consequences are also presented.
Operations on hyperideals in ordered Krasner hyperrings
Authors: Omidi S. , Davvaz B. , Corsini P.
Published: September 2017

In the present paper, we will concentrate our efforts on ordered Krasner hyperrings and investigate some of their related properties. Moreover, we introduce and analyze the notion of interior hyperideal in ordered Krasner hyperrings. We also characterize intra-regular ordered Krasner hyperrings by the properties of these interior hyperideals. Finally, we give some results on ordered Krasner hyperrings.
Singular Limits for 4-Dimensional General Stationary Q-Kuramoto-Sivashinsky Equation (Q-Kse) with Exponential Nonlinearity
Authors: Ouni Taieb , Baraket Sami , Khtaifi Moufida
Published: September 2017

Let Ω be a bounded domain in with smooth boundary, and let 𝓧1; 𝓧2; · · ·, 𝓧m be points in Ω. We are concerned with the singular stationary non-homogenous q-Kuramoto-Sivashinsky eaquation (q-KSE:

where we use some nonlinear domain decomposition method to give a suficient condition to have a positive weak solution u in Ω under the physical Dirichlet-like boundary conditions , which is singular at each 𝓧i as the parameters λ, ϒ and ρ tend to 0 and where q ∈ [1, 4] is a real number.
A relaxation theorem for a differential inclusion with “maxima”
Authors: Cernea Aurelian
Published: September 2017

We consider a Cauchy problem associated to a nonconvex differential inclusion with “maxima” and we prove a Filippov type existence result. This result allows to obtain a relaxation theorem for the problem considered.
IFSs consisting of generalized convex contractions
Authors: Georgescu Flavian
Published: September 2017

In this paper we introduce the concept of iterated function system consisting of generalized convex contractions. More precisely, given n ∈ ℕ*, an iterated function system consisting of generalized convex contractions on a complete metric space (X; d) is given by a finite family of continuous functions (fi)i ∈I , fi : X → X, having the property that for every ω ∈ λn(I) there exists a family of positive numbers (aω;υ)υ∈Vn(I) such that:

x; y ∈ X. Here λn(I) represents the family of words with n letters from I, Vn(I) designates the family of words having at most n - 1 letters from I, while, if ω1 = ω1ω2 ... ωp, by fω we mean fω1 ⃘fω2 ⃘... ⃘ fωp. Denoting such a system by S = ((X; d); n; (fi)i∈I), one can consider the function FS : K(X) → K(X) described by , for all B ∈ K(X), where K(X) means the set of non-empty compact subsets of X. Our main result states that FS is a Picard operator for every iterated function system consisting of generalized convex contractions S.
P-union and P-intersection of neutrosophic cubic sets
Authors: Jun Young Bae , Smarandache Florentin , Kim Chang Su
Published: September 2017

Conditions for the P-intersection and P-intersection of falsity-external (resp. indeterminacy-external and truth-external) neutrosophic cubic sets to be an falsity-external (resp. indeterminacy-external and truth-external) neutrosophic cubic set are provided. Conditions for the P-union and the P-intersection of two truth-external (resp. indeterminacy-external and falsity-external) neutrosophic cubic sets to be a truth-internal (resp. indeterminacy-internal and falsity-internal) neutrosophic cubic set are discussed.
A novel difference schemes for analyzing the fractional Navier-Stokes equations
Authors: Sayevand Khosro , Baleanu Dumitru , Sahsavand Fatemeh
Published: September 2017

In this report, a novel difference scheme is used to analyzing the Navier - Stokes problems of fractional order. Existence and uniqueness of the suggested approach with a Lipschitz condition and Picard theorem are proved. Furthermore, we find a discrete analogue of the derivative and then stability and convergence of our strategy in multi dimensional domain are proved.
The Avriel-Ben-Tal algebraic operations approach for a short version proof of the Karush-Kuhn-Tucker optimality conditions
Authors: Cornaciu Veronica , Ioana Ileana
Published: September 2017

In this paper, by using (h, ϕ)-generalized directional derivative and (h, ϕ)-generalized gradient, the authors directly derives the Karush- Kuhn-Tucker conditions by applying a corollary of Farkas lemma under the Mangasarian-Fromovitz constraint qualification.Furthermore, the boundedness of Lagrange multipliers is showed.
Infinitely many solutions for a class of hemivariational inequalities involving p(x)-Laplacian
Authors: Fattahi Fariba , Alimohammady Mohsen
Published: September 2017

In this paper hemivariational inequality with nonhomogeneous Neumann boundary condition is investigated. The existence of infinitely many small solutions involving a class of p(x) - Laplacian equation in a smooth bounded domain is established. Our main tool is based on a version of the symmetric mountain pass lemma due to Kajikiya and the principle of symmetric criticality for a locally Lipschitz functional.
A gradient-type deformation of conics and a class of Finslerian flows
Authors: Crasmareanu Mircea
Published: September 2017

The aim of this paper is to produce new examples of Riemannian and Finsler structures having as model a scalar deformation of conics inspired by the scaling transformation. It continues [4] from the point of view of relationship between quadratic polynomials (which provide equations of conics in dimension 2) and Finsler geometries. A type of Finslerian ow is introduced, based on the previous deformation and we completely solve the corresponding particular case of Riemannian flow.
On partial sums of normalized Mittag-Leffler functions
Authors: Răducanu Dorina
Published: September 2017

This article deals with the ratio of normalized Mittag-Leffler function Eα,β(z) and its sequence of partial sums (Eα,β)m(z). Several examples which illustrate the validity of our results are also given.
Notes on a semigroup related to the dicyclic group Qn
Authors: Sorouhesh Mohammad R. , Campbell Colin M.
Published: September 2017

We consider certain properties of the semigroup S defined by the Presentation S = 〈a,b : a2ⁿ⁻¹ = 1,b2 = a2ⁿ⁻², ba = ab2ⁿ⁻¹-1〉, (n ≥ 3).
Littlewood–Richardson coefficients for Grothendieck polynomials from integrability
Authors: Wheeler Michael , Zinn-Justin Paul
Published: September 2017

We study the Littlewood–Richardson coefficients of double Grothendieck polynomials indexed by Grassmannian permutations. Geometrically, these are the structure constants of the equivariant K-theory ring of Grassmannians. Representing the double Grothendieck polynomials as partition functions of an integrable vertex model, we use its Yang–Baxter equation to derive a series of product rules for the former polynomials and their duals. The Littlewood–Richardson coefficients that arise can all be expressed in terms of puzzles without gashes, which generalize previous puzzles obtained by Knutson–Tao and Vakil.
Application of the mode-shape expansion based on model order reduction methods to a composite structure
Authors: Fuentes Humberto Peredo
Published: September 2017

The application of different mode-shape expansion (MSE) methods to a CFRP based on model order reduction (MOR) and component mode synthesis (CMS) methods is evaluated combining the updated stiffness parameters of the full FE model obtained with a mix-numerical experimental technique (MNET) in a previous work. The eigenvectors and eigenfrequencies of the different MSE methods obtained are compared with respect to the experimental measurements and with a full FE model solutions using the modal assurance criteria (MAC). Furthermore, the stiffness and mass weighted coefficients (K-MAC and M-MAC respectively) are calculated and compared to observe the influence of the different subspace based expansion methods applying the MAC criteria. The K-MAC and M-MAC are basically the MAC coefficients weighted by a partition of the global stiffness and mass matrices respectively. The best K-MAC and M-MAC results per paired mode-sensor are observed in the subspace based expansion MODAL/SEREP and MDRE-WE methods using the updated stiffness parameters. A strong influence of the subspace based on MOR using MSE methods is observed in the K-MAC and M-MAC criteria implemented in SDTools evaluating the stiffness parameters in a contrieved example.
Temperature Dependence of Electrophysiological Responses of Lepidopteran Antennae
Authors: Bestmann Hans Jürgen , Dippold Klaus
Published: September 2017

By recording the temperature dependence of electroantennograms with Lepidoptera antennae optimum curves were obtained, and a hysteresis phenomenon was observed by passing tempera­ ture cycles. The latter also occur with single cell recording (electrosensillogram) in the receptor potentials as well as in the number of action potentials released per second. The results of the measurements are discussed on a molecular level, a scheme reflects the molecular processes which eventually are involved in the interaction of a signal molecule and receptor region.
Populus candicans and the Balm of Gilead
Authors: Whatley F. R. , Greenaway W. , May J.
Published: September 2017

Bud exudates of some poplars are compared using GC-MS. P. candicans resembles P. balsami­fera. A sample of "Balm of Gilead" purchased in Oxford proved not to resemble its supposed source, P. candicans. Instead it was similar to P. nigra, from which it was presumably collected in Europe.
Investigations about various Possible Functions of the L -Amino Acid Oxidase in the Cyanobacterium Anacystis nidulans
Authors: Pistorius Elfriede K. , Kertsch Regine , Faby Susanne
Published: September 2017

The cyanobacterium A nacystis nidulans was grown on nitrate or L-arginine as sole nitrogen source and in the presence of different divalent cation concentrations (1 mᴍ MgSO4 and 0.1 mᴍ CaCl2 or 0.1 mᴍ MgSO4 and 0.05 mᴍ CaCl2). The L-amino acid oxidase previously reported to be present in Anacystis nidulans (E . K. Pistorius and A. E. Gau, Biochim. Biophys. Acta 849, 203, 1986) was shown to be involved in L-arginine catabolism in cells grown with the lower divalentcation concentration. Under these conditions L-arginine was partly degraded via 2-ketoarginine and 4-guanidinobutyrate. On the other hand, at higher cation concentrations the ʟ-amino acid oxidase activity seem ed to be not sufficient to provide enough NH4
+ from ʟ-arginine for cell growth. Under those conditions photosystem II activity was initially reduced, and growth on ʟ-arginine could only start after photosystem II activity increased again and after arginase was induced. The arginase pathway was functional in A . nidulans grown on ʟ-arginine independently of the divalent cation concentration in the medium. A tentative scheme of the various functiona roles of the ʟ-amino acid oxidase protein in A . nidulans is given. This model combines the here presented and the previous results and suggests that the ʟ-amino acid oxidase is functional in photosynthetic and respiratory activities as well as in ʟ-arginine degradation in A . nidulans. All these activities of the ʟ-amino acid oxidase protein are greatly influenced by the divalent cation concentration in the growth medium.
Cytochrome c Oxidase of the Cyanobacterium Phormidium foveolarum
Authors: Häfele Ursula , Scherer Siegfried , Böger Peter
Published: September 2017

Phormidium foveolarum was grown with nitrate or ammonia as nitrogen source. With ammonia present respiration increased by a factor of 4 due to increase of cytochrome c oxidase. The inhibition of respiration by cyanide was measured during the growth period, indicating that only one terminal oxidase is present in Phormidium foveolarum . Cytochrome c oxidase from ammonia-grown filaments was solubilized and purified on phenylsuperose and by anion exchange 100-fold com pared to the crude cell extract. The difference spectrum (oxidized minus reduced) shows absorption peaks at 417 nm, 514 -520 nm. 550 nm and 605 nm. These maxima, together with a low inhibition constant for cyanide (Ki = 0.4 μᴍ) and a higher one for azide (ki= 1.75 mᴍ) are interpreted in terms of an αα3-type cytochrome c oxidase present containing noncovalently-bound cytochrome c.
Isolation and Comparison of Molecular Properties of Cytochrome £-559 from Both Spinach Thylakoids and PS II Particles
Authors: Ortega José María , Hervás Manuel , Losada Manuel
Published: September 2017

Cytochrome b-559. Spinach Thylakoids. PS II Particles. High and Low Potential. Interconvertible Forms Cytochrome b-559 has been purified from both spinach (Spinacia oleracea L.) thylakoids and photosystem II particles in order to compare some of its more polemic molecular properties. In the two cases, cytochrome 6-559 (which is initially present in its reduced high-potential form and in its oxidized low-potential form) is purified as a single species by preparative disc electrophoresis in Triton-containing polyacrylamide gel, the isolated protein exhibiting similar molecular mass and almost identical low midpoint redox potential and absorption spectra. Moreover, sodium dodecyl sulfate polyacrylamide gel electrophoresis of the purified cytochrom e b-559 reveals, again in both cases, only one polypeptide band of similar molecular mass. Integration o f the isolated low-potential form into liposomes partly restores the high-potential form. These data corroborate our previous results and indicate that there exists in thylakoids only a cytochrome b -559 molecular species tightly bound to PS II and that the two naturally occurring low-and high-potential couples are physiological and correspond to interconvertible states of the genuine hem e protein.
An Amino Acid Substitution in the QB-Protein Causes Herbicide Resistance without Impairing Electron Transport from QA to QB
Authors: Wildner Günter F. , Heisterkamp Ursula , Bodner Ulrich , Johanmngmeier Udo , Haehnel Wolfgang
Published: September 2017

Structure and function of the QB-protein of a metribuzin resistant mutant of Chlamydomonas reinhardii were analyzed. The amino acid residue Leu-275 of the wild type protein is changed to Phe as was determined by RNA -sequence analysis. This mutation caused a 20-fold and 5-fold resistance to metribuzin and DCMU , respectively. No resistance to atrazine was observed. The kinetics of the electron transport from QA to OB was similar to that of the wild type (t1/2 = 0.4 ms).
Degradation of the 32 kDa Photosystem II Reaction Center Protein in UV, Visible and Far Red Light Occurs Through a Common 23.5 kDa Intermediate
Authors: Greenberg Bruce M. , Gaba Victor , Mattoo Autar K. , Edelman Marvin
Published: September 2017

A characteristic 23.5 kD a degradation intermediate of the 32 kDa photosystem II reaction center protein is produced upon illumination in UV , visible and far red light. We suggest a similar degradation pathway is employed in these three spectral regions, even though the light can enter the system through different photo receptors.
Effect of Protocol Manipulation for Determining Maximal Aerobic Power on a Treadmill and Cycle Ergometer: A Brief Review
Authors: Julio Ursula F. , Panissa Valéria L. G. , Shiroma Seihati A. , Franchini Emerson
Published: September 2017

THE DEVELOPMENT OF AEROBIC FITNESS IS CONSIDERED IMPORTANT FOR HEALTH AND PERFORMANCE. IN THIS SENSE, EVALUATION OF MAXIMAL AEROBIC POWER (MAP) BECOMES RELEVANT, NOT ONLY TO CLASSIFY AEROBIC FITNESS, BUT ALSO TO OBTAIN IMPORTANT INDICES RELATED TO MONITORING AND PRESCRIPTION OF EXERCISE, ESPECIALLY HIGH-INTENSITY INTERMITTENT EXERCISE. HOWEVER, IN THE LITERATURE, THERE ARE A VARIETY OF PROTOCOLS THAT MANIPULATE DIFFERENT VARIABLES, SUCH AS INITIAL LOAD, STAGE DURATION, INCREMENT LOAD, AND INCREMENTS BASED ON RATING OF PERCEIVED EFFORT. THEREFORE, THE AIMS OF THE PRESENT PAPER ARE TO ANALYZE STUDIES THAT MANIPULATE THE TEST PROTOCOLS AND THE EFFECTS ON INDICES RELATED TO MAP.
Food and nutrition security trends and challenges in the Ganges Brahmaputra Meghna (GBM) delta
Authors: van Soesbergen Arnout , Nilsen Kristine , Burgess Neil D. , Szabo Sylvia , Matthews Zoë
Published: September 2017

The population of the Ganges Brahmaputra Meghna (GBM) delta is highly vulnerable to food insecurity and malnutrition due to the specific environmental, climatic and human development factors affecting agricultural production and fisheries. To better understand the impacts of climate and environmental change on food security and nutrition in this delta, this study combines spatially explicit data from the 2007 and 2011 Bangladesh Demographic and Health Survey (BDHS) with a standard satellite remotely sensed vegetation greenness index (Normalised Difference Vegetation Index, NDVI), used as a proxy for rice production. The strength of association between NDVI and child nutrition in this tropical mega-delta were tested, showing correlations between two widely used indicators of child malnutrition; stunting and wasting, and deviations from a 10 year mean NDVI (anomalies) for rice crop growing seasons – regarded as critical to individual children’s early lives. For children surveyed in 2007 we found that the likelihood of being stunted decreased with increased NDVI as a measure of food production. Similarly, for children surveyed in 2011, the likelihood of being wasted reduced with increased NDVI. However, regression results for stunting in 2011 and wasting in 2007 were not statistically significant. Our findings suggest that NDVI can be regarded as indicative of climatic variability and periods of low food production but is only partly successful as an indicator of climate related impacts on child nutrition in the GBM delta. Furthermore, our study highlights some of the uncertainties and challenges with linking environmental indicators such as the NDVI with household survey data across spatial and temporal scales.
Professionals and the Professions in the Global South
Authors: Chorev Nitsan , Schrank Andrew
Published: September 2017

In spite of the evident importance of professionals and the professions in the Global South, the sociological literature on the subject is almost entirely confined to the developed market economies. In turn, the North American literature on development has not filled the vacuum – as it has largely ignored the professions for the better part of the last half century. In this introduction, we offer a brief intellectual history of these two sub- disciplines and critically appraise this mutual neglect - of professionals in the sociology of development, and of the Global South in studies of professions. We then offer four realms of investigation where we believe the marriage of these two spheres of knowledge would be particularly useful: the relations between professionals and the state, the politicized nature of professions, the fragmentation of professions, and the transnationalized nature of professions.
Physician Autonomy and the Paradox of Rationalization
Authors: Jin Lei
Published: September 2017

Tools meant to standardize and rationalize clinical practice have been widely used in healthcare institutions. One tool in particular, clinical pathways, has been a key component of the recent public hospital reform in China. Clinical pathways regulate how the core activities of the medical professional should be performed. Examining pathway implementation and physicians’ attitude toward them may shed light on the extent of discretion and autonomy physicians have in their core activities. Therefore, this study takes clinical pathways as a lens through which to study Chinese physicians’ work and autonomy and asks three questions: First, what is the attitude of physicians toward clinical pathways? Second, how are pathways implemented in physicians’ practice? And third, what are the determinants of physicians’ attitude? Both quantitative and qualitative data are used to explore the research questions. The quantitative data come from a survey of 158 physicians in three tertiary hospitals in two provincial capitals. The qualitative data are from all online discussions about clinical pathways on one of the most popular social networking websites for physicians and hospital administrators. The findings are consistent with the prediction based on sociological theorization of rationalization in professional work. Namely, there are two distinct dimensions in physicians’ attitude toward clinical pathways: physicians felt that pathways made their practice more scientific, but they also felt that the pathways were burdensome and restrictive. Physicians were in general heavily involved in the process of pathway implementation, and restrictive monitoring and sanctioning practices were relatively uncommon. Factors associated with pathway implementation were important predictors of physicians’ attitude, whereas professional orientation and concerns with the status of the profession had limited effect. Taken together, the findings from this exploratory study suggest that although physicians in China's public hospitals are dependent on their organizations, they retain considerable discretion in the implementation and use of clinical pathways. On the other hand, physicians’ views of clinical pathways are more prominently shaped by organizational factors than by their professional orientation.
Ecological state of the river Ural
Authors: Tulemisova Gul'zhamal , Abdinov Rauan , Kabdrakhimova Gaukhar , Janetov Тalap
Published: September 2017

The article describes the ecological state of the Ural River at the present stage. Hydrochemical regime of the reservoir is an important indicator to regulating the number of water resources. As the Ural River is the transboundary reservoir, it is prone to contamination from various areas in the upper and middle reaches.
Monitoring of the ecological state of the Ural River showed the presence of anthropogenic pollution. The hydrochemical regime of the reservoir is subject to changes in seasonal variations in water composition. In spring, with flood waters, the main pollution enters the river, however in other seasons, the quality of water leaves much to be desired. In autumn, in comparison with the spring, both alkalinity and salinity increased. The reservoir is prone to contamination with nitrites in almost all seasons of the year from 0.05 to 0.20 mg/dm3 (December, 2016). In the lower reaches of the Ural River, the content of readily oxidizable organic compounds ranges from 3.2 mg/dm3 (winter) to 7.36 mg/dm3 (autumn). The content of boron exceeds the maximum permissible concentration 1-3 times.
Environmental monitoring conducted in different periods of the year showed a constant source of pollution flow into the reservoir, which was increased in the flood period. Concentrations of nitrite, boron and petroleum products in the Ural River exceed their permitted values at the point in the end of Uralsk city. The results of the research confirm that the source of the contamination of Ural River is its confluent Ilek River originating from Aktobe Oblast.
How Does the Fed Adjust its Securities Holdings and Who is Affected?
Authors: Ihrig Jane , Mize Lawrence , Weinbach Gretchen C.
Published: September 2017

The Federal Open Market Committee indicated in its September 2017 post-meeting statement that it will initiate in October a balance sheet normalization program to gradually reduce its securities holdings. This action will put in place a policy of reinvesting and redeeming portions of the principal payments received by the Federal Reserve from its holdings of Treasury and agency securities. How are these adjustments to the Federal Reserve’s securities holdings transacted and who is affected? This paper provides a primer regarding how the Federal Reserve accounts for these securities transactions. It also illustrates the numerous ways that the Federal Reserve's actions can play out across other sectors of the economy, including those that engage directly with the Federal Reserve and those that are involved indirectly as funds change hands.
benefits of segmentation: Evidence from a South African bank and other studies
Authors: Breed Douw G. , Verster Tanja
Published: September 2017

We applied different modelling techniques to six data sets from different disciplines in the industry, on which predictive models can be developed, to demonstrate the benefit of segmentation in linear predictive modelling. We compared the model performance achieved on the data sets to the performance of popular non-linear modelling techniques, by first segmenting the data (using unsupervised, semi-supervised, as well as supervised methods) and then fitting a linear modelling technique. A total of eight modelling techniques was compared. We show that there is no one single modelling technique that always outperforms on the data sets. Specifically considering the direct marketing data set from a local South African bank, it is observed that gradient boosting performed the best. Depending on the characteristics of the data set, one technique may outperform another. We also show that segmenting the data benefits the performance of the linear modelling technique in the predictive modelling context on all data sets considered. Specifically, of the three segmentation methods considered, the semi-supervised segmentation appears the most promising.

Significance: 

The use of non-linear modelling techniques may not necessarily increase model performance when data sets are first segmented.
No single modelling technique always performed the best.
Applications of predictive modelling are unlimited; some examples of areas of application include database marketing applications; financial risk management models; fraud detection methods; medical and environmental predictive models.
Välittäjät nykytaidemaailmassa: tuotantoputkesta toimijaverkkoon
Authors: Kaitavuori Kaija
Published: September 2017

Intermediaries of the Artworld. From Pipeline to Actor-Network looks at the different ways in which mediators or intermediaries in the cultural field have been conceptualised both in social theory (Becker, Danto, Dickie...) and by practitioners in the field of visual arts. The practical examples come mostly from discussions in Finland and from the visual arts.

The article claims that a linear view of art production as a producer–product–distribution–user chain is not sufficient to explain how art is created and enjoyed. Instead, we should look at the process and its divers actors as a network in which there are connections and movement in all directions, rather than just from artists via mediators to audience.

One case study, Santiago Sierra’s project Man in a Ditch (2001), is analysed as an example of a coproduction between multiple actors. The role of the artist turns out to be that of ‘cutting the network’.
Luovuuden dispositiivi, sukupuoli ja taiteellisen työn prekarisoituminen
Authors: Roiha Taija
Published: September 2017

Dispositif of creativity, gender and the precarisation of artistic work

The aim of this article is to open up theoretical perspectives to the research of the status of the artists and especially on its gender analysis. My principal points of references are the writings of a British cultural theorist Angela McRobbie and her concepts of disposi- tif of creativity and postfeminist sexual contract. The Foucauldian concept dispositif of creativity is used to illustrate how the features of artistic working conditions are in uenced by the wider and creativity-emphasizing current of changes taking place in the general sphere of production, therefore making the working conditions of the people working in the artistic sphere even more precarious. At the same time the model of “working like an artist” becomes a prominent feature not only in the creative sector but in other industries as well. All these features and transitions are also gendered in manifold ways. The concept of postfeminist sexual contract implies that the importance of young and highly educated women is constantly growing so that the so-called “top girls” have now become the ideal worker subjects of the post-Fordist era. This is not to say that gender inequality issues are disappeared, even though there is a certain kind of a post-feminist illusion of equality tak- ing place across the society. Because of this “postfeminist masquerade” the inequalities are being reshaped and therefore becoming more dif cult to grasp. In this article I will present the main features of these two concepts and use them to analyze the changes taking place in the Finnish context of artistic activity by referring to previous empirical research ndings implemented in the eld. As a conclusion I suggest that the increased amount of self-em- ployers and free artists in the Finnish artistic eld goes hand in hand with the growing importance of individualization implemented by the dispositif of creativity. This develop- ment also leads to new forms of gender inequality, such as the growing importance of the precarious or ‘untypical’ working position of working as a free artist, self-employer or entrepreneur as an explanatory factor of the income gap between male and female artists.

Keywords: dispositif of creativity, precarization, gender, artistic work
Ymmärrystä yleisöistä sekä taiteen ja kulttuurin vaikuttavuudesta: kokemus yleisötutkimuksen kohteeksi
Authors: Moisio Saara
Published: September 2017

Understanding Audiences and the Impact of Arts and Culture: Experience as the Focus of Audience Research

What are the meanings that people give to justify their attendance or non-attendance in culture and arts? What kind of experiences lie behind these justifications? Although there is a vast amount of knowledge on attendance and participation in culture and art, it is usually produced from the perspective of the goals of cultural administration. Therefore, in this article I suggest addressing the questions on attendance and non-attendance, participation and impact of arts and culture by focusing on the experiences of audiences. Instead of trying to develop quantitative measurements for the impact of arts and culture, the experiences of people should be understood more thoroughly. I reflect on what qualitative audience research with creative methods could provide for research as well as the development of cultural policy and public funding.

Key words: qualitative audience research, audience experience, impact of culture and art, creative methods
INFLUENCE OF METRONIDAZOLE ON BIOLOGICAL ACTION OF DOXORUBICIN
Authors: Yagubov S. A. , Amandzholov B. S. , Donenko F. V. , Dolzhikova Yu. I. , Malakhova N. V.
Published: September 2017

Purpose. Investigation of the effect of the Metronizatol on the biological effect of Doxirubicin.

Materials and methods. The studies were performed in the CBA/Lac males and C57Bl/6 females mice grafted with melanoma B16 and mucinous ovarian cancer CaO‑1. Metronidazole and Doxorubicin were used in the work. The antitumor effect was assessed by tumor volume and inhibition of tumor growth.

Results. The data obtained indicate that Metronidazole used in oncologic practice for the treatment and prevention of infectious complications, and as a radiosensitizer, can enhance the antitumor effect of Doxorubicin, but this effect is accompanied by a significant increase of the cytostatic toxicity. These effects are leveled by increasing the interval between injections of Metronidazole and Doxorubicin up to 4 hours.

Conclusion. The enhancement of the antitumor activity of Doxorubicin under the influence of Metronidazole depends on the interval between the administration of these drugs. When Metronidazole is used in cancer patients, the possibility of enhancing the toxic effect of cytostatics should be considered when they are simultaneously exposed. Patients receiving chemotherapy should be administered antitumor drugs no earlier than 4 hours after exposure to Metronidazole.
INFLUÊNCIA ESTRUTURAL SOBRE CAVERNAS EM FORMAÇÕES FERRÍFERAS, CARAJÁS-PA
Authors: Braga Antônio Alessandro de Jesus , Fiori Alberto Pio , Gonçalves Daniele Freitas , Costa Francisco Ribeiro da
Published: September 2017

A pesquisa foi realizada no contexto geológico da Bacia Carajás, Província Mineral de Carajás no sudeste do Pará. Especificamente na mina de ferro N4E, alvo de exploração da empresa Vale. O objeto de estudo são cavernas hospedadas em formações ferríferas bandadas, bem como, em canga que é seu produto de alteração. Tem como principal objetivo avaliar a influência estrutural, processo este, que se mostra eficiente e importante para o desenvolvimento de uma caverna. Foram realizadas análises buscando entender de que forma estruturas descontínuas como, fraturas e bandamentos, controlam essas feições “pseudocársticas”. Muito embora algumas cavernas pareçam não seguir nenhum padrão estrutural, em sua grande maioria encontram-se alongadas segundo planos de fraturas e bandamentos. Elas facilitam a percolação de fluidos que causa dissolução e/ou alteração da sílica, dando origem a pequenas cavidades que seriam as percussoras das cavernas. Os resultados mostraram que as cavernas tendem a se desenvolver segundo planos de fraqueza que facilitam a entrada de água e acarretam no colapso de blocos. No entanto, os resultados da comparação entre diagramas de rosetas gerados a partir dos canais de drenagem de primeira ordem, e das direções dos principais condutos das cavernas, apontaram para a não correlação com eventos tectônicos recentes, carecendo ainda de mais estudos neste sentido.Palavras Chave: desenvolvimento de cavernas, fraturas, bandamentosAbstract: STRUCTURAL INFLUENCE ON IRON FORMATION CAVES, CARAJÁS, PA. The research was carried out in the geological context of the Carajás basin, Carajás Mineral province, southeastern Pará, specifically in the N4E iron ore mine, which has been exploited by Vale. The object of study are caves hosted by banded iron formations, as well as by canga, which is their alteration product. This work aims mainly to evaluate the structural influence, which is an efficient and important process for a cave development. Analysis were performed in order to understand how discontinuous structures, such as fractures and bundles control these "pseudocarstic" features. Although some caves seem to follow no structural pattern, most of them are elongated by fracture planes and banding. They facilitate the percolation of fluids that cause dissolution and/or alteration of silica, giving rise to small cavities that would be the percussors of the caves. The results showed that the caves tend to develop under planes of weakness that facilitate the entry of water and lead to the collapse of blocks. However, the results obtained by the comparison of rosette diagrams generated from the first-order drainage channels and the directions of the main conduits of the caves showed to be non-correlated with recent tectonic events, and still need further studies in this sense.Keywords: development of caves, fractures, banding
ANÁLISE DA ATIVIDADE MINERÁRIA DO QUARTZITO NA COMUNIDADE QUILOMBOLA SUMIDOURO, QUEIMADA NOVA – PIAUÍ
Authors: Araújo Alinne Marianne Martins , Santos Lauro Cézar Montefalco de Lira , Barbosa Diego , Sousa Antônio Augusto Pereira , Silva Jr Josivan Pereira , Barbosa Francielson Silva
Published: September 2017

A comunidade Quilombola Sumidouro do município de Queimada Nova, sudeste do Piauí, trabalha com a extração e beneficiamento do quartzito, comercializado no mercado de construção civil da região. A técnica para extração e beneficiamento é feita manualmente, resultando em uma recuperação muito baixa, gerando por volta de trinta mil toneladas de rejeito por ano, o que acarreta poluição e diminuição da vida útil das jazidas. Portanto, o objetivo deste trabalho, é propor ações visando otimizar a produção na extração, melhorar a qualidade do produto final do quartzito, reduzir os impactos ambientais e os impactos a saúde. A metodologia empregada baseou-se em levantamentos de campo, levantamentos históricos e entrevistas com a comunidade Quilombola. Os resultados da pesquisa mostraram o potencial de recursos naturais da região.Palavras Chave: Quartzito, quilombola, extração mineral, patrimônio, técnicas de extraçãoAbstract:ANALYSIS OF THE QUARTZITE EXTRACTION METHODS IN THE QUILOMBOLA SUMIDOURO COMMUNITY, QUEIMADA NOVA – PIAUÍ - BRAZIL. The Quilombo Sumidouro community in the Queimada Nova municipality, Southeastern Piaui, Brazil, works with the extraction and processing of quartite, marketed in the construction sector. The technique for extraction and pro-cessing is done manually, resulting in a very low recovery, generating around thirty thousand tons of waste per year, which causes pollution and decrease the life of the mines. Therefore, the aim of this work is to optimize the production in mining, improving the quality of the final product and reducing environmental and health impacts. The methodology was based on field and historical surveys, as well as interviews with the Quilombo community. The survey results show the potential of natural resources in the region.Keywords: Quartzite, quilombo, mineral extraction, patrimony, techniques of extraction
The Future of Polish Labour Market and the Issue of Work Motivation in Older People
Authors: Łaszkiewicz Edyta , Bojanowska Anna
Published: September 2017

According to the demographic forecasts, the population of people in their productive working age decreases, while the share of people aged 65 and over increases. The negative demographic tendencies will affect the conditions of labour market. If the workers’ activity rate doesn’t rise, the total number of workers will decrease dramatically. The demographical pressures on the labour market should result in a prolonging of people’s professional activity. The increase of the labour market activity seems to be one of the most important goals for Poland, for the coming years. One of the factors, which might help in maintaining the high rate of labour market activity (especially among those who are in the pre‑retirement age) is the adaptation of working conditions to the needs of people of various ages. The possibility of working remotely, the flexibility of weekly hours of work or the financial benefits might motivate younger and older workers in different ways. Hence, the use of mechanisms which support the economic activity of older people requires an identification of solutions which will benefit this group of workers the most. The aim of this research is the identification of age‑related differences in factors which motivate workers to continuing working activity. We used the database of individuals from Polish Social Diagnosis (for 2015) and applied the logit regression models to verify if there are age differences in the way people prefer to be motivated to work. We found that what motivates elderly workers doesn’t always motivate the others in the same way. Pre‑retirement age workers prefer, more than others, to be independent and to have a job which is related to their experience. The financial motivators as well as the stability of employment, although very important for all workers, seem to be less important for the elderly workers because they have achieved pension rights.
Kierunki migracji emerytów w Polsce
Authors: Pytel Sławomir Piotr
Published: September 2017

Celem artykułu jest zaprezentowanie skali i kierunków migracji emerytów w Polsce. Artykuł posiada wprowadzenie teoretyczne, wskazujące główne teorie migracyjne. Kolejnym elementem jest zaprezentowanie tła regionalnego w postaci migracji emerytów w Europie i ukazanie istotnych różnic w migracjach emerytów w Polsce i na zachodzie Europy. Zaprezentowanie skali zjawiska migracji seniorów w Polsce jest ważną kwestią, szczególnie w kontekście uświadomienia samorządów o zwiększającym się napływie migracyjnym do ich gmin. Zjawisko migracji emerytów zostało przedstawione szczegółowo w podziale na przedziały wiekowe seniorów oraz na przedziały wielkościowe gmin.