bluuebunny/crossref_metadata_2025 huggingface dataset:
Intercomparison of NOx emission inventories over East Asia
Authors: Ding Jieying , Miyazaki Kazuyuki , van der A Ronald Johannes , Mijling Bas , Kurokawa Jun-ichi , Cho SeogYeon , Janssens-Maenhout Greet , Zhang Qiang , Liu Fei , Levelt Pieternel Felicitas
Published: April 2017

Abstract. We compare 9 emission inventories of nitrogen oxides including four satellite-derived NOx inventories and the following bottom-up inventories for East Asia: REAS (Regional Emission inventory in ASia), MEIC (Multi-resolution Emission Inventory for China), CAPSS (Clean Air Policy Support System) and EDGAR (Emissions Database for Global Atmospheric Research). Two of the satellite-derived inventories are estimated by using the DECSO (Daily Emission derived Constrained by Satellite Observations) algorithm, which is based on an extended Kalman filter applied to observations from OMI or from GOME-2. The other two are derived with the EnKF algorithm, which is based on an ensemble Kalman Filter applied to observations of multiple species using either the chemical transport model CHASER and MIROC-chem. The temporal behaviour and spatial distribution of the inventories are compared on a national and regional scale. A distinction is also made between urban and rural areas. The intercomparison of all inventories shows good agreement in total NOx emissions over Mainland China, especially for trends, with an average bias of about 20 % for yearly emissions. All the inventories show the typical emission reduction of 10 % during the Chinese New Year and a peak in December. Satellite-derived approaches using OMI show a summer peak due to strong emissions from soil and biomass burning in this season. Biases in NOx emissions and uncertainties in temporal variability increase quickly when the spatial scale decreases. The analyses of the differences show: the importance of using observations from multiple instruments and a high spatial resolution model for the satellite-derived inventories, while for bottom-up inventories, accurate emission factors and activity information are required. The advantage of the satellite derived approach is that the emissions are soon available after observation, while the strength of the bottom-up inventories is that they include detailed information of emissions for each source category.
Seismic anisotropy inferred from direct S-wave-derived splitting measurements and its geodynamic implications beneath southeastern Tibetan Plateau
Authors: Tiwari Ashwani Kant , Singh Arun , Eken Tuna , Singh Chandrani
Published: April 2017

Abstract. The present study deals with detecting seismic anisotropy parameters beneath southeastern Tibet near Namcha Barwa Mountain using the splitting of direct S waves. We employ the reference station technique to remove the effects of source-side anisotropy. Seismic anisotropy parameters, splitting time delays, and fast polarization directions are estimated through analyses of a total of 501 splitting measurements obtained from direct S waves from 25 earthquakes ( ≥  5.5 magnitude) that were recorded at 42 stations of the Namcha Barwa seismic network. We observe a large variation in time delays ranging from 0.64 to 1.68 s, but in most cases, it is more than 1 s, which suggests a highly anisotropic lithospheric mantle in the region. A comparison between direct S- and SKS-derived splitting parameters shows a close similarity, although some discrepancies exist where null or negligible anisotropy has been reported earlier using SKS. The seismic stations with hitherto null or negligible anisotropy are now supplemented with new measurements with clear anisotropic signatures. Our analyses indicate a sharp change in lateral variations of fast polarization directions (FPDs) from consistent SSW–ENE or W–E to NW–SE direction at the southeastern edge of Tibet. Comparison of the FPDs with Global Positioning System (GPS) measurements, absolute plate motion (APM) directions, and surface geological features indicates that the observed anisotropy and hence inferred deformation patterns are not only due to asthenospheric dynamics but are a combination of lithospheric deformation and sub-lithospheric (asthenospheric) mantle dynamics. Direct S-wave-based station-averaged splitting measurements with increased back-azimuths tend to fill the coverage gaps left in SKS measurements.
Detecting high spatial variability of ice-shelf basal mass balance
(Roi Baudouin ice shelf, Antarctica)
Authors: Berger Sophie , Drews Reinhard , Helm Veit , Sun Sainan , Pattyn Frank
Published: April 2017

Abstract. Ice shelves control the dynamic mass loss of ice sheets through buttressing and their integrity depends on the spatial variability of their basal mass balance (BMB), i.e., the difference between refreezing and melting. Here, we present a novel technique – based on satellite observations – to capture the small-scale variability in the BMB of ice-shelves. As a case study we apply the methodology to the Roi Baudouin Ice Shelf, Dronning Maud Land, East Antarctica and derive its yearly-averaged BMB at 10 m horizontal gridding. We use mass conservation within a Lagrangian framework based on high-resolution surface velocities, atmospheric-model surface mass balance and hydrostatic ice-thickness fields (derived from TanDEM-X surface elevation). Spatial derivatives are implemented using the total-variation differentiation, which avoids spatial averaging hence loss of spatial resolution. Our BMB field exhibits high detail and ranges from −14.8 to 8.6 m a−1 ice equivalent. Highest melt rates are found close to the grounding line where the basal ice-shelf slope is the steepest. The BMB field agrees well with on-site measurements from phase-sensitive radar, although unresolved spatial variations in firn density determined from profiling radar occur. We show that the surface expression of an englacial lake (0.7 × 1.3 km2 wide and 30 m deep) lowers by 0.5 to 1.4 m a−1, which we tentatively attribute to a transient adaptation to hydrostatic equilibrium. We find evidence for elevated melting beneath ice-shelf channels (with melting being concentrated on the channel's flanks). However, farther downstream from the grounding line, the majority of ice-shelf channels advect passively toward the ice-shelf front. Although the absolute, satellite-based BMB values remain uncertain, we have high confidence in the spatial variability on sub-kilometre scales. This study highlights expected challenges for a full coupling between ice and ocean models.
Violencia de Estado y trasmisión entre las generaciones
Authors: Cabrera Pérez Pablo Eduardo , Aceituno Roberto , Matamala Felipe , Fischer Jorge
Published: April 2017

En este texto se abordan los aportes específicos del psicoanálisis en la reflexión sobre la temática de la transmisión hacia las nuevas generaciones – los nietos – de los eventos traumáticos que no han podido ser elaborados por las víctimas familiares antepasadas – los abuelos – en el contexto de la violencia de Estado ejercida en Chile entre los años 1973 y 1989. Tras la contextualización de algunos hitos significativos de la dictadura chilena, se conceptualizarán las nociones de trauma, historia y transmisión de lo traumático desde una perspectiva psicoanalítica para, finalmente, reflexionar sobre los casos de Cecilia y Margarita, dos jóvenes cuyas familias fueron desintegradas por la violencia de Estado. La transmisión muestra una historia que debe reconstruirse por medio de los detalles relatados en la biografía testimoniada, centrándose en aquello que se repite, que interrumpe y que se historiza en la transferencia, cuestionando así aquello invisible del terrorismo de Estado que ha sido transmitido a una generación de personas nacidas después de haber concluido dicho período histórico.
La verdad en debate. La primacía del paradigma jurídico en el examen de las violaciones a los derechos humanos en la Argentina
Authors: Crenzel Emilio Ariel
Published: April 2017

Estas páginas examinan tres representaciones, elaboradas en contextos políticos disímiles y marcos epistemológicos diferentes sobre el valor de la justicia penal ante las violaciones a los derechos humanos perpetradas en la Argentina. La primera, la estrategia jurídica del gobierno de Alfonsín, busco erstablecer una condena ejemplar basada en una perspectiva utilitarista del castigo. y tuvo por premisas la verdad alumbrada por el informe Nunca Más, elaborado por la Comisión Nacional sobre la Desaparición de Personas (CONADEP). La segunda, se situa en las reflexiones críticas que, sobre esta estrategia, formuló uno de sus arquitectos, Jaime Malamud Goti, en el contexto de impunidad tras los indultos sancionados por el presidente Carlos Menem que, aparentemente, clausuraban la escena judicial. La tercera, promovida por académicos y familiares de desaparecidos en el último lustro, deriva del impacto que, también en Argentina, provocó la experiencia de la Comisión de Verdad y Reconcialiación de Sudáfrica. En función de esta presentación mostraré que, pese a que el papel de los juicios en la tramitación de las violaciones a los derechos humanos está siendo resignificado, aún por una porción de quienes los impulsaron, estas resignificaciones se enmarcan en el paradigma jurídico y refuerzan su primacía como modo de procesar el pasado de violencia en la Argentina.
Gobernar la producción y el trabajo por medio de estándares. El caso de la industria agroalimentaria en Murcia
Authors: De Castro Carlos , Moraes Natalia , Cutillas Isabel
Published: April 2017

El sector agroalimentario de la Región de Murcia está integrado a una cadena agroalimentaria global que destaca por su modernización tecnológica y por su elevada productividad. Desde la década de los noventa se vienen implantando sistemas de calidad que han contribuido a transformar radicalmente los procesos productivos y las condiciones de trabajo. Numerosos estudios han analizado cómo la implantación de estándares y certificaciones ha dado lugar a un significativo aumento de la calidad de los productos y de sus procesos de producción. Sin embargo, algunos estudios muestran que el aumento de la calidad de los productos y de los procesos no ha supuesto necesariamente una mejora sustancial de la calidad del empleo ni una desprecarización de las condiciones de trabajo. Por el contrario, la precariedad laboral y la informalidad persisten y en algunos casos, se acentúan, al aumentar el control sobre los procesos y los trabajadores. Este artículo explora esta hipótesis en el caso de la industria de la uva de mesa en la Región de Murcia.
El desarrollo de los estudios críticos de gestión en los países latinoamericanos de habla hispana
Authors: Gantman Ernesto R.
Published: April 2017

El objetivo de este trabajo es examinar el desarrollo de los estudios críticos de gestión en los países latinoamericanos de habla hispana. A tal efecto, se analizará la producción de los cinco países que tienen mayor producción a nivel internacional de artículos científicos en ciencias administrativas: El análisis es de tipo descriptivo y procura identificar la producción de conocimiento conceptual y empírico tanto en materia de libros como de artículos cuyo objeto de estudio sea compatible con la tradición de estudios críticos de gestión. El examen del corpus de pensamiento en la materia permite afirmar que existe cierto nivel de producción en los países considerados. Además, se observa en algunos de ellos que el desarrollo de trabajos enmarcados dentro de los estudios críticos de gestión no es realizado por investigadores afiliados a escuelas de negocios o facultades de ciencias económicas, sino por aquellos que integran otras unidades académicas dedicadas a otras ciencias sociales o a las humanidades.
Internal analysis and optimization applied to parameter estimation under uncertainty
Authors: Gallego-Posada Jose Daniel , Puerta-Yepes Maria Eugenia
Published: April 2017

We present a methodology through exemplification to perform parameter estimation subject to possible factors of uncertainty. The underlying optimization problem is posed in the framework of the theory of interval-valued optimization. The implementation of numerical procedures required to achieve efficient solutions implied the use of the $\ell_1$ norm instead of usual $\ell_2$ regression. Finally, an implementation using real data was performed, demonstrating the ability of interval analysis to encapsulate uncertainty while facing non-trivial parameter estimation problems.
$p$-$\mathcal{I}$-generator and $p_1$-$\mathcal{i}$-generator in bitopology
Authors: Acharjee Santanu , Tripathy B. C.
Published: April 2017

In this article we have investigated  the relations of $p$-$\mathcal{I}$-generator, $p_1$-$\mathcal{I}$-generator  with $p$-Lindel\"{o}f and $p_1$-Lindel\"{o}f using $\tau_i$-codense, $(i,j)$-meager, $(i,j)$-nowhere dense and perfect mapping of bitopological space. The relations between $p$-compactness, $p$-Lindel\"{o}fness, $p_1$-Lindel\"{o}fness  and topological ideal, $(i,j)$-meager, $(i,j)$-Baire space in bitopological space are investigated. Some properties are studied on product bitopology using perfect mapping. It can be found that bitopological space has many applications in real life problems. Hence, we hope that this theory will help to fulfill some interlinks which may have applications in near future.
Un método algoritmo para el cálculo del número baricéntrico de Ramsey para el grafo estrella
Authors: Villarroel Felicia , Figueroa J. , Márquez H. , Anselmi A.
Published: April 2017

Let G be an abelian finite group and H be a graph. A sequence in G, with length al least two, is barycentric if it contains an ”average” element of its terms. Within the context of these sequences, one defines the barycentric Ramsey number, denoted by BR(H, G), as the smallest positive integer t such that any coloration of the edges of the complete graph Kt with elements of G produces a barycentric copy of the graph H. In this work we present a method based on the combinatorial theory and on the definition of barycentric Ramsey for calculating exact values of the above metioned constant, for some small graphs where the order is less than or equal to 8. We will exemplify the case where H is the star graph K1,k, and where G is the cyclical group Zn, with 3 ≤ n ≤ 11 and 3 ≤ k ≤ n.
Flow and Heat Transfer Investigation of Forced Convection of Nanofluid in a Wavy Channel at Different Wavelengths and Phase Difference
Authors: Rahimi Esboee Mazaher , Abokazempour Esmaeil , Ramiar Abbas , Arya Amir , Ranjbar Ali Akbar , Rahgoshay Majid
Published: April 2017

Changing the fluid properties and flow geometry are two common ways of making an improvement in heat transfer rate. Recent investigations on nanofluid, as such suspensions are often called, indicate that the suspended nanoparticles remarkably change the transport properties and heat transfer characteristics of the suspension. Bending walls can also improve heat transfer by increasing the total heat transfer surface and changing the behavior of the flow. In this work a two dimensional incompressible laminar nanofluid flow in a wavy channel with sinusoidal curved walls is numerically investigated. The finite volume method, and Rhie and Chow interpolation with a collocated mesh are used for solving the governing equations. The effects of the volume fraction of nanoparticles, Reynolds number, the wavelength, Phase lag and amplitude on the heat transfer rate are studied. The present work showed good agreement with existing experimental and Numerical results. Increasing the amplitude of the wave and nanoparticles volume fraction, and decreasing wavelength of the wave, has great effects on enhancement of heat transfer rate.
On (weakly) precious rings associated to central polynomials
Authors: Khashan Hani A.
Published: April 2017

Let R be an associative ring with identity and let g(x) be a fixed polynomial over the center of R. We define R to be (weakly) g(x)-precious if for every element a∈R, there are a zero s of g(x), a unit u and a nilpotent b such that (a=±s+u+b) a=s+u+b. In this paper, we investigate many examples and properties of (weakly) g(x)-precious rings. If a and b are in the center of R with b-a is a unit, we give a characterizations for (weakly) (x-a)(x-b)-precious rings in terms of (weakly) precious rings. In particular, we prove that if 2 is a unit, then a ring is precious if and only it is weakly precious. Finally, for n∈ℕ, we study (weakly) (xⁿ-x)-precious rings and clarify some of their properties.
Properties of the first eigenvalue with sign-changing weight of the discrete p-Laplacian and applications
Authors: Chehabi Mohammed , Chakrone Omar
Published: April 2017

By establishing some results around the first eigenvalue λ1(m) for the following problem: -Δ(φp(Δu(k - 1)))= λm(k)φp(u(k)); k∈ [1; n]; u(0) = 0 = u(n + 1); where m ∈ M([1; n]) = {m : [1; n] → R /∃ k∈ [1; n]; m(k) > 0} ; as the constant sign of the first eigenfunction with λ1(m); the simplicity of λ1(m); the strict monotonicity property with respect the weight and sign change of any eigenfunction with  ( λ > λ1(m)); we prove the existence and non-existence of solutions of the problem (1.1).
Quadratic ideals, indefinite quadratic forms and some specific diophantine equations
Authors: Tekcan Ahmet , Kutlu Seyma
Published: April 2017

Let $k\geq 1$ be an integer and let $P=k+2,Q=k$ and $D=k^{2}+4$. In this paper, we derived some algebraic properties of quadratic ideals $I_{\gamma}$ and indefinite quadratic forms $F_{\gamma }$ for quadratic irrationals $\gamma$, and then we determine the set of all integer solutions of the Diophantine equation $F_{\gamma }^{\pm k}(x,y)=\pm Q$.
A posteriori error estimation for incompressible viscous fluid with a new boundary condition
Authors: El Akkad Abdeslam , Elkhalfi Ahmed
Published: April 2017

This paper describes numerical solutions of incompressible Navier-Stokes equations with a new boundary condition. To solve this problem, we use the discretization by mixed finite element method. We use a vector extrapolation method for computing numerical solutions of the steady-state Navier-Stokes equations. In addition, two types of a posteriori error indicator are introduced and are shown to give global error estimates that are equivalent to the true error. A numerical experiment on the driven cavity flow is given to demonstrate the effectiveness of the vector extrapolation method. We compare the result with the solution from commercial code like ADINA system as well as with values from other simulations.
Matrix transformation of Fibonacci band matrix on generalized $bv$-space and its dual spaces
Authors: Das Anupam , Hazarika Bipan
Published: April 2017

In this paper we introduce a new sequence space $bv(\hat{F})$ by using the Fibonacci band matrix $\hat{F}.$ We also establish a few inclusion relations concerning this space and determine its $\alpha-,\beta-,\gamma-$duals. Finally we characterize some matrix classes on the space $bv(\hat{F}).$
New fractional calculus and application to the fractional-order of extended biological population model
Authors: Neirameh Ahmad
Published: April 2017

In this study, we propose a new algorithm to find exact solitary wave solutions of nonlinear time- fractional order of extended biological population model. The new algorithm basically illustrates how two powerful algorithms, conformable fractional derivative and the homogeneous balance method can be combined and used to get exact solutions of fractional partial differential equations.
Existence of solutions for an elliptic p(x)-Kirchhoff-type systems in unbounded domain
Authors: Brahim Abdelamlek , Djellit Ali , Tas Saadia
Published: April 2017

In this paper we study of the existence of solutions for a class of elliptic system with nonlocal term in R^{N}. The main tool used is the variational method, more precisely, the Mountain Pass Theorem.
The Association between Accounting Earnings, Dividends, Stock Prices and Stock Returns: Value Relevance of Accounting Standards in the Tunisian Stock Market
Authors: Bouteska Ahmed , Regaieg Boutheina
Published: April 2017

This present study aims to examine the relationship between accounting earnings, dividends, stock prices and stock returns for companies listed at the Tunisian stock exchange. Using panel data obtained from the annual reports and financial statements of 57 Tunisian companies over the period 2005-2015, we show the existence of an earning-dividend-return significant positive relation by applying four models developed from Easton and Harris (1991), Frino and Tibbits (1992) and Kothari and Zimmerman (1995).. The empirical results indicate a significant value relevance of accounting earnings and dividends reported by Tunisian companies under the standards generally accepted in Tunisia. Particularly, it appears from our main findings in regressions the relative explanatory power of above variables on stock market returns which clarifies the important proportions of variations of stock returns in Tunisia. The findings from the study also reveal that shareholders pay a special attention to the impact of dividend and dividend yield on stock returns. Moreover, investors should consider informative earnings numbers as investment criteria as well as many other factors for example interest rates and industry performance affecting stock returns when it comes to make investment decisions. Based on these results and due to the importance of accounting earnings in investment decisions we recommend that there is need for investors to carefully use financial advisory information that financial analysts provide to them in order to determine what the correct and comparable earnings per share (EPS) or dividend per share (DPS) of each company.
Empirical Evidence of Color on Motivation toward Learning
Authors: Laeeque Bisma , Akmal Asma
Published: April 2017

This study was conducted to understand the role of color in motivating children towards learning. The sample was selected from two government schools of a village named Rao Khan Wala near Lahore. Traid color schemes were used as they provide a unique balance of both the cool and warm colors. Furthermore for the selection of the sample’s age Piaget’s theory of cognition was used and children falling in concrete operational stage were selected in this research. The study revolved around experimental research method in which the research was divided into two phases for data accumulation, the pre stage and post stage. The findings of the study revealed that colors positively increase children’s motivation toward learning in classroom settings.
Coupling of Solvent Extraction and Ultrasonic Waves for Regeneration of Spent Activated Carbon after Treatment of Polluted Air with Toluene Vapor
Authors: Mohamed Elham F. , Shetaya Waleed H. , El-Mekawy Asmaa , Shakour Alia A. , Awad Gamal
Published: April 2017

A batch process was used to evaluate the potential of regeneration of spent activated carbon (AC) by solvent extraction technique with synergetic to ultra-sonication. Experiments were undertaken as a function of the initial concentration of toluene. Freundlich and Langmuir models were used to study the adsorption isotherms and the data well fitted the Langmuir expression. The maximum adsorption capacities of toluene were found to be 0.108 µg/g activated carbon for Type-I Langmuir. Extraction of the used AC by both methanol solvent and ultrasonic radiation yielded up to 95% reactivation of the spent AC in the first run. Nearly up to 88 % recovery of activity could be achieved after further regeneration and reusing of the spent AC. The results indicate that the coupling of solvent extraction with ultrasonic waves in the AC treatment is comparable and perhaps superior to the conventional regeneration techniques in many cases. This is mainly due to the single step process applied which is less energy consuming; in addition to the nearly comprehensive recovery of the adsorptive capacity of spent AC.
Sustainable Community Development through Homestay Programme
Authors: Affizzah A. M. Dyg , W. Melissa , R. Mohd Ashraf
Published: April 2017

The study analyses the dimensionality of tourist perceived value in community-based homestay tourism context. A survey of 150 visitors to homestay in Kuching, Sarawak was conducted and used to examine the perceived value dimensions in tourism context, statistical analysis and structural equation model were used to verify the validity and reliability of scales used. Satisfaction level was measured using tested perceived value with six dimensions that illustrated through structural construct, (i) emotional value, (ii) experiential value (host-guest interaction), (iii) experiential value (activity, culture and knowledge), (iv) functional value (establishment), (v) functional value (price), and (vi) functional value (service). The finding shows that emotional, experiential and functional are important determinants of perceived value which affect the visitor’s satisfaction level on homestay tourism. Moreover, statistical findings indicated that only five dimensional have positive affect towards Satisfaction Level while function value (establishment) computed a negative affect towards satisfaction.
Turismo e Mobilidade: um diagnóstico da acessibilidade geográfica à fronteira Chuí-Rio Grande do Sul/RS, Brasil/Chuy, Uruguai
Authors: Kunz Jaciel Gustavo , Tosta Eline
Published: April 2017

O tema “mobilidade turística”, cujo debate ainda é incipiente no Brasil, transcende a ideia do deslocamento tendo o turismo como finalidade. O objetivo deste trabalho foi o de diagnosticar a acessibilidade geográfica da fronteira Chuí/ Rio Grande do Sul, Brasil - Chuy/Uruguai a partir da análise dos principais fluxos do transporte aéreo dos aeroportos de Pelotas/RS/Brasil, Porto Alegre//RS/Brasil e Montevidéu/Uruguai e levantamento da oferta de acesso por meio do transporte coletivo rodoviário. Foram consultados diariamente os voos dos aeroportos no período de 7 dias ininterruptos e páginas web de empresas de ônibus que operavam linhas regulares até a fronteira. Pôde-se observar que a acessibilidade estava relacionada a outros fatores senão à (in)disponibilidade de transporte e que para compreender a mobilidade é necessário considerar fatores políticos e estratégias econômicas e corporativas. Sugere-se para estudos futuros relacionar como a acessibilidade local e a micro acessibilidade implicam no turismo emissivo e receptivo nas áreas de fronteira.
Exploring mentorship programs and components in nursing academia: A qualitative study
Authors: Nowell Lorelli , White Deborah E. , Benzies Karen , Rosenau Patricia
Published: April 2017

Objective: Nursing education institutions globally have issued calls for mentorship to address the nursing faculty shortage; however, little is known about the current state of mentorship for faculty members in Canadian schools of nursing. The purpose of this study is to describe the current state of mentorship in Canadian schools of nursing and explore definitions and goals of mentorship programs, mentorship models and components, and mentorship evaluation.Methods: A qualitative descriptive study was conducted. Within the Canadian Association of Schools of Nursing there are 81 English-speaking schools of nursing and 2,284 permanent faculty members spread over four regions. Participants were recruited from the 81 schools of nursing through the CASN newsletter list serve and publically accessible email addresses. Inclusion was limited to English speaking faculty. Purposive sampling aimed to capture variation across rank and tenure, school, size and areas within Canada.  Semi-structured interviews were utilized to explore the participant’s (n = 48) perspectives and involvement with mentorship.  Interviews were audio-recorded and transcribed verbatim. NVivo was used to code and analyze the data for significant statements and phrases, which were organized into themes and sub-themes.Results: Mentorship remains largely informal in nursing academia without common definitions or goals. Current mentorship in nursing academia employed dyad, peer, group, constellation, and distance mentorship models. Common mentorship program components included guidelines, training, professional development workshops, purposeful linking of mentors and mentees, and mentorship coordinators. Evaluation of mentorship in nursing academia, where it exists, remains mostly descriptive, anecdotal, and lacks common evaluative metrics.Conclusions: Our results confirm mentorship in Canadian schools of nursing remains largely informal. In developing mentorship programs, academic leaders need to consider the mentorship models and components to meet their specific needs. Further rigorous evaluation of mentorship programs and components is needed to identify if mentorship programs are achieving specified goals.
Assessment of Anemia Levels in Infants and Children in High Altitude Peru
Authors: Amerson Roxanne , Duggan Lisa , Glatt Michelle , Ramsey Kate , Baker Jenna
Published: April 2017

When prevalence rates of anemia exceed 40%, the World Health Organization recognizes this as a severe public health problem. In Peru, approximately 43.5% (urban) and 51.1% (rural) of children between the ages of 6 and 36 months have anemia. Currently, limited data exists regarding prevalence rates in many of the high altitude regions of Peru. The main purpose of this pilot study was to establish evidence of anemia in infants and children (7 months through 5 years of age) living in the rural, mountainous region of Ollantaytambo District. This pilot study utilized a quantitative, cross-sectional design to assess the presence of anemia in infants and children. Hemoglobin levels were collected from 160 children across 12 villages where elevations ranged from 2800 to 4100 meters above sea level. Chi Square tests compared anemia with age ranges, altitude, anthropometric measures, breastfeeding patterns, and types of communities. Adjusted hemoglobin levels established 47.5% of the 160 participants were anemic. Chi Square results indicated children aged 25-36 months and children living in communities at 3100 and 4100 meters displayed higher than expected rates of anemia. Results confirmed high rates of anemia and the need for education related to dietary factors.
Savings Habit Among Individuals in the Informal Sector: A Case Study of Gbegbeyishie Fishing Community in Ghana
Authors: Addai Bismark , Gyimah Adjei Gyamfi , Boadi Owusu Wendy Kumah
Published: April 2017

Savings among individuals in the informal sector is imperatively expedient if they are to have any decent and comfortable living conditions at retirement as savings in the informal sector become the obvious substitute for formal pensions. However, much is not known regarding the savings habits of informal sector, particularly, the fishing communities in Ghana. Apparently, this study investigates into the determinants of savings habit of the informal sector in Ghana, using the case of the Gbegbeyishie Fishing community. The data for the study was obtained through administering questionnaires and interviewing targeted respondents. A 120 sample size was randomly drawn from Gbegbeyishie fishing community in Ghana. This study employs the probit model in estimating the determinants of savings in the informal sector. SPSS and STATA statistical packages were employed in descriptive analysis and estimation of the probit model respectively.It is glaring in this study that age, gender and income are statistically significant conditions for savings in the informal sector. It is also evincing in this study that Age has a significant negative effect on savings and aging decreases the propensity to save by 0.1577656. On the other hand, income has statistically significant positive effect on savings and that a one unit change in the income variable increases the propensity to save by 0.1292502. Also, the probability for a male, all other factors held constant, to save is higher than for a female to save and being a man increases the propensity to save by 0.2024894. The study also revealed that the main hindrance to savings in the Gbegbeyishie Fishing Community is Low income.As a result, the authors recommend that men and married people should be targeted whiles paying little attention to the aged in stimulating savings among fishing communities in Ghana. Educational programs could also be organized for the workers in the informal sector as most of the workers have no education which could hinder their income earning capacity and for that matter savings. Further research could also be engineered to consider macro-economic conditions for savings habit in Ghana.
The Momentum & Trend-Reversal as Temporal Market Anomalies
Authors: Basdekidou Vasiliki A.
Published: April 2017

The main goal of this paper is to introduce and discuss the temporal dimension and the subsequent (time-series) functionalities of two well-known technical market anomalies - the momentum anomaly and the trend-reversal anomaly. Our approach not only challenging the efficient-market hypothesis but also has a temporal dimension because it uses the “psychological time” at the beginning of a move, as a parameter in overnight post-market asset position trading strategies and daytime asset position strategies as well. Momentum and reversal have been documented extensively in financial literature and they are viewed, in the current paper, as temporal momentum and temporal trend-reversal anomalies because they are hard to fully explain within the standard static asset-pricing paradigm. A rational dynamic and temporal representative agent could explain and document better these anomalies and this is the case of this article. The presented research shows that momentum profit accumulates entirely overnight, while trend-reversal profit occurs entirely intraday. These findings reject classical theories of intraday and overnight returns. Hence, (i) a well designed overnight-position return strategy based on temporal momentum anomaly; and (ii) a well designed intraday-position return strategy based on temporal trend-reversal anomaly, could gain benefit at the expense of long-term investors and hedgers. After back-testing our research in available 16-year data, we found that overnight-position speculators profit from the proposed temporal momentum trading strategy approach at the expense of hedgers, and daytime swing traders profit from the proposed temporal trend-reversal trading strategy approach at the expense of long-term investors.
Deletion of atoR from Streptococcus pyogenes Results in Hypervirulence in a Mouse Model of Sepsis and is LuxS Independent
Authors: SITKIEWICZ IZABELA , MUSSER JAMES M.
Published: April 2017

Group A Streptococcus (GAS) is a Gram-positive human pathogen that causes a variety of diseases ranging from pharyngitis to life-threatening streptococcal toxic shock syndrome. Recently, several global gene expression analyses have yielded extensive new information regarding the regulation of genes encoding known and putative virulence factors in GAS. A microarray analysis found that transcription of the GAS gene M5005_Spy_1343 was significantly increased in response to interaction with human polymorphonuclear leukocytes. M5005_Spy_1343 is predicted to encode a member of the LysR family of transcriptional regulators and is located upstream of a putative operon containing six genes. Five of these genes have sequence similarity to genes involved in short-chain fatty acid metabolism, whereas the sixth gene (luxS) is found in many bacterial species and is involved in quorum sensing. Unexpectedly, inactivation of the M5005_Spy_1343 gene resulted in hypervirulence in an intraperitoneal mouse model of infection. Increased virulence was not due to changes in luxS gene expression. We postulate that short-chain fatty acid metabolism is involved in GAS pathogenesis.
Dotazník motivace k výkonu: Recenze metody
Authors: Sedláková Jitka , Knapová Lenka
Published: April 2017

Dle našeho názoru je metoda v aktuální podobě vhodná pouze pro oblast poradenství či výzkumu. I v těchto případech by však uživatel testu měl usilovat o integraci informací získaných metodou s dalšími zdroji informací z rozhovoru, pozorování či jiných metod. Z důvodu nejasného faktorového rozložení a nedostatku informací o psychometrických vlastnostech metody v českých podmínkách by bylo použití v rámci personálního výběru neetické. Výsledky metody by mohly být v tomto kontextu navíc i méně validní kvůli problémům se sociálně žádoucím odpovídáním. In our opinion, the current version of the method is suitable for use only in the area of consulting. Nevertheless, the test user should try to integrate the information provided by the method with other sources of information such as interview, observation, and other methods even in these cases. Due to unclear factor structure and a lack of information about the psychometric properties of the method in the Czech population, its use in personnel selection would be unethical. In this setting, the results from the method could be even less valid because of the issue of socially desirable responding.
Birinci Dünya Savaşı’nda Gazze Muharebeleri / The Battles of Gaza in World War I
Authors: Ağaoğlu Sami
Published: April 2017

Abstract

According to Germany’s demand, Ottoman Empire opened Canal Front which is one of the most important front lines of WWI to pass the Suez Canal and attack Egypt. There were two massive attacks between Ottoman and British. The first clash occured in 1915 and second took place in 1916. Result of Ottoman forces struggle with the British troops, Ottoman Empire were defeated but then Ottoman Empire counter attacked. They tried to prevent British attacks in the campaigns of Sinai and Palestine.

The paper deals with the First and the Second Battle of Gaza that repelled English forces, the third Gaza Battle and its result, Yildirim Army Group (or Thunderbolt Army Group) of the Ottoman Empire that was formed in order to prevent advance of attackers and siege and fall of Jerusalem. Therefore, subsequent failures of the campaign and retreating to the Anatolia started. The research paper was based on archival documents, primary&secondary sources and memoirs.

Öz

Osmanlı Devleti, Birinci Dünya Savaşı’nın önemli cephelerinden olan Kanal cephesini Almanların isteği doğrultusunda Süveyş kanalının geçmek ve Mısır’a taarruz etmek amacıyla açmıştı. Osmanlı Ordusunun I. Kanal Seferi ve II. Kanal Seferi başarısız olunca, karşı saldırıya geçen İngiliz birlikleri Sina ve Filistin cephesinde, Gazze muharebeleri ile durdurulmaya çalışılmıştır.

Araştırmamızda, İngiliz birliklerinin püskürtüldüğü I. ve II. Gazze muharebeleri, Birüssebi ve Gazze’nin elden çıktığı III. Gazze muharebesi, Osmanlı Devleti’nin bu yenilgiyi durdurabilmek için kurduğu Yıldırım Orduları Gurup Komutanlığı ve Kudüs’ün elden çıkışı ele alınmıştır. Böylelikle birbiri ardına gelen yenilgiler zinciri ile Osmanlı Ordularının Anadolu’ya çekilişi arşiv belgeleri, birinci elden kaynaklar ve hatıratlardan yararlanılarak işlenmiştir.
Türkiye’de Sanatçı Adayı Yetiştiren Yükseköğretim Kurumlarının 2000 Yılı Sonrası Gelişimi / Development of Turkish Higher Education Institutions Educating Candidate Artists After 2000
Authors: Çağlayan Evrim , Kıratlı Ayşe Dilek
Published: April 2017

Abstract

The aim of this study is to present the qualitative development of Turkish higher education institutions that educating candidate artists after 2000. Obtained data and documents were organized according to this development and were analyzed in order to provide current information about these higher education institutions. The study deals with two main themes. The first theme contains developments between 1983 and 2000, and the second theme contains developments between 2000 and 2016. In the study, it has been found that the number of higher education institutions that training candidate artists follow a steady increase after 2000 and their numbers reached to 70 in 2016. The relevant literature show that some faculties of fine arts were established without planning and analysis about the needs of academic and administrative staff, technical and spatial structure, employment opportunities after graduation. Because of this reason, these faculties could not reach a sufficient number of academic staff, could not provide the minimum physical conditions and could start education approximately 3 or 4 years after their establishment.

Öz

Bu çalışma, sanatçı adayı yetiştiren yükseköğretim kurumlarının 2000 yılı sonrası niceliksel gelişimini ortaya koymayı amaçlamaktatır. Çalışma ile ilgili elde edilen bilgi ve belgeler bu gelişim sürecine göre düzenlenmiş ve ilgili yükseköğretim kurumları hakkında güncel bilgileri sunmak amacıyla analiz edilmiştir. Çalışma bulguları iki ana tema üzerinden sunulmuştur. Birinci tema 1983-2000 yılları arasında yaşanan gelişmeleri, ikinci tema ise 2000 yılından günümüze kadar olan gelişmeleri kapsamaktadır. Çalışmada, sanatçı adayı yetiştiren yükseköğretim kurumlarının sayısının 2000 yılı sonrasında düzenli bir artış izlediği ve 2016 yılında 70’e yükseldiği tespit edilmiştir. Çalışma sonucunda; yeterli planlama, mezuniyet sonrası istihdam olanakları, teknik ve mekânsal altyapı ihtiyaçları, akademik ve idari kadrolar, aday öğrenci kaynakları gibi hususlar göz ardı edilerek yeni fakültelerin kurulduğu tespit edilmiştir. Bu nedenle, pek çok fakültenin yeterli öğretim elemanı sayısına ulaşamadığı, asgari fiziki koşulları sağlayamadığı ve kuruluşlarından ancak 3-4 yıl sonra eğitim-öğretime başlayabildikleri belirlenmiştir.
Coğrafya Öğretmenlerinin Teknolojik Pedagojik Alan Bilgisi İle İlgili Yeterliliklerinin İncelenmesi / Examining the Skills of Geography Teachers’ Technological Pedagogical Content Knowledge
Authors: Doğru Esengül , Aydın Fatih
Published: April 2017

Abstract

The main purpose of this research was to determine the competencies of technological pedagogical content knowledge (TPCK) of geography teachers and to examine whether these competencies differed significantly according to various variables. The study included a total of a total of 42 geography teachers employed in Karabuk city centre and its districts in 20015-2015 education year. The data of the study was gathered though Technological Pedagogical Content Knowledge (TPCK) developed by Pamuk, Ergun, Çakır, Yılmaz ve Ayas (2012). Frequency and percentage values along with Kolmogorov-Smirnov (K-S) test, Mann Whitney U test and Kruskal Wallis H test were used to analyse the data of the current study. The results of the study revealed that the technological pedagogical content knowledge of geography teachers was not enough. Results also demonstrated the level of geography teachers’ technological pedagogical content knowledge did not differ significantly according to their skills and knowledge at using technology, seniority, education level and gender. Content Knowledge is one of the subscales of TPCK that geography teachers had the highest level of knowledge. Furthermore, the level of technological content knowledge of geography teachers was higher than that of technological pedagogical knowledge. The results of the study were discussed in line with the related literature and some suggestions were made. 

Öz

Bu araştırmanın temel amacı, Coğrafya öğretmenlerinin Teknolojik Pedagojik Alan Bilgisi (TPAB) yeterliliklerinin tespit edilmesi ve bu yeterliliklerin çeşitli değişkenlere göre farklılık gösterip göstermediğinin incelenmesidir. Çalışmaya, 2015-2016 eğitim öğretim yılında Karabük il merkezi ve ilçelerinde görev yapmakta olan toplam 42 Coğrafya öğretmeni katılmıştır. Veri toplama aracı olarak, araştırmanın nicel kısmı için ölçme aracı olarak Pamuk, Ergun, Çakır, Yılmaz ve Ayas (2012) tarafından geliştirilen, Teknolojik Pedagojik Alan Bilgisi (TPAB) ölçeği kullanılmıştır. Verilerin analizinde yüzde ve frekans değerleri, Kolmogorov-Smirnov (K-S) testi, Mann Whitney U testi, Kruskal Wallis H testi kullanılmıştır. Araştırma sonuçları, Coğrafya öğretmenlerinin Teknoloji Bilgilerinin (TB) yeterli olmadığını göstermektedir. Coğrafya öğretmenlerinin Pedagojik Bilgileri (PB), teknolojiyi kullanmadaki bilgi ve becerilerine, meslekteki hizmet yıllarına, eğitim durumlarına ve cinsiyetlerine göre farklılaşmadığı sonucuna ulaşılmıştır. TPAB’nin alt boyutlarından olan Alan Bilgisi (AB), öğretmenlerin en yüksek seviyede bilgi sahibi oldukları boyuttur. Ayrıca öğretmenlerin, Teknolojik Alan Bilgisi (TAB) düzeylerinin Teknolojik Pedagojik Bilgi (TPB) düzeylerine göre yüksek çıktığı görülmüştür. Araştırma sonuçları ilgili alan yazınla ilişkili bir biçimde tartışılmış ve bazı öneriler sunulmuştur.
Ortaöğretim Öğrencilerinin Tarih Kavramına İlişkin Sahip Oldukları Metaforlar / Secondary School Students’ Metaphors about the History Concept
Authors: Candan Ahmet Sait , Öztaş Sezai
Published: April 2017

Abstract

A metaphor is a figure of speech that refers to one thing by mentioning another thing via comparison, fictionalizing and expression.  This study is revealing, in terms of metaphor concept, what the perceptions of the secondary school students with relate to “History” term are. Accordingly, comments of 160 students who are educating in secondary schools in Karabük city center are referred. In this research, the secondary school students’ perceptions about “History” term are tried to be determined via metaphors. The obtained data were analyzed with content analysis method by using the phenomenological pattern in terms of qualitative research method. As a result of this analysis, it has been revealed that metaphor is an effective factor in determining and expressing the perceptions of the secondary education students about “History” term.

Öz

Metafor bir şeyi başka bir şey ile benzetmeye, kurgulamaya, anlatmaya yarayan mecazlardır. Bu çalışma ortaöğretim öğrencilerinin “Tarih” kavramına ilişkin algılarının neler olduğunu metaforlar bağlamında ortaya koymaya yöneliktir. Bu doğrultuda Karabük il merkezinde bulunan ortaöğretim okullarında öğrenim gören 160 öğrencinin görüşlerine başvurulmuştur. Araştırmada çalışma grubundaki öğrencilerin “Tarih” kavramına yönelik algıları metaforlar üzerinden belirlenmeye çalışılmıştır. Elde edilen veriler, nitel araştırma yöntemi bağlamında olgubilim deseni kullanılarak içerik analizi tekniği ile analiz edilmiştir. Bu analiz sonucunda, ortaöğretim öğrencilerinin “Tarih” kavramına ilişkin sahip oldukları algıları belirlemede ve açıklamada metaforların etkin bir araç olduğu ortaya çıkmıştır.