bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determinants of Total Factor Productivity in the Middle East and North Africa
Authors: Raggl Anna K. 
Published: July 2015

AbstractA decomposition of output growth rates of Middle Eastern and North African countries shows that the contributions of human capital-augmented labor and physical capital to output growth are comparably small and stable over time and that in most countries a considerable share of output growth is attributed to growth in total factor productivity. This paper empirically assesses the determinants of total factor productivity in the Middle East and North Africa region between 1980 and 2009. The findings suggest that human capital is not only an input factor of production but also a quantity that changes the efficiency by which existing input factors are used. Domestic innovations appear to be efficient only if a certain level of educational attainment is reached by a country. In addition, human capital contributes to the ability of efficient adoption of technology from abroad and allows a faster catch-up with technological leaders. Globalization, in combination with a (comparably low) threshold endowment of human capital, is estimated to increase total factor productivity in Middle Eastern and North African countries.
Normative foundations of competitive markets and their relevance to democracy
Authors: Räsänen Petri 
Published: July 2015

AbstractThe economic theory of competitive markets is widely accepted as a theoretical framework for the construction of real-world global markets. Most influentially, this is apparent in the commonly accepted ideal of global free trade, with WTO as its primary proponent. The virtue of efficiency related to competitive markets is also often deemed politically neutral or, at least, unworthy of too-critical consideration. This paper argues against this contention. The theoretical axioms behind competitive markets assume a normatively and politically saturated core: self-interested agents (individuals, households and firms) who 1) are attached to consequential rationality, 2) must bypass various moral commitments and 3) are committed to specific interpretations of the concepts of freedom and justice. I will argue that attachment to these notions downplays democratic decision-making. As there is no genuine room for so-called procedural decision-making, the prospects for political innovation will be narrowed. For example, those kinds of interpretations of the concepts of freedom and justice that do not fit within the ideal of competitive markets are precluded from politically feasible options. I will argue that taking note of deliberative rationality and democracy would alleviate this problem.
Discussion on the Influence of Various Technological Parameters on Jet Grouting Columns Geometry
Authors: Bzówka Joanna , Juzwa Anna , Wanik Konrad , Wanik Lidia , Żyrek Tomasz 
Published: July 2015

Abstract
One of the most popular elements created by using jet grouting technology are columns. During designing such columns, it is a problem of estimating their shape and dimensions. The main factors that influence on columns geometry are soil characteristic and technological parameters. At the frame of Authors scientific research, following technological factors were taken into account: system of jet grouting, injection pressure, dimension of nozzles and rotation speed during injection. In the paper some results of the field tests of jet grouting columns are presented
LAS NORMAS INTERNACIONALES DE INFORMACIÓN FIN ANCIERA: HISTORIA, IMPACTO Y NUEVOS RETOS DE LA IASB
Authors: Ugalde Binda Nadia 
Published: July 2015

<p>The internationalization of business transactions, business expansion through mergers and acquisitions, and the interest of covering more diversified investment portfolios,<br />require agencies to draft uniform accounting standards across countries to allow comparability of financial information for these new “multinational companies” (Zeff,<br />2012). Thus, in 1973 arises the IASC, based in London as a first attempt to establish international basic standards called International Accounting Standards. This article is<br />a historical overview of the institutions involved in the formulation of these rules, the implications that its implementation has had on the financial statements, how some countries have made adjustments to them and what are the main challenges that the IASB<br />should face in the future.</p>
IMPACTO DE LA POLÍTICA FISCAL EN LA DISTRIBUCIÓN DEL INGRESO Y LA POBREZA EN COSTA RICA
Authors: Sauma Fiatt Pablo , Trejos Solórzano Juan Diego 
Published: July 2015

<p>Costa Rica destina el equivalente de algo más de un 20% de su PIB al financiamiento de una amplia gama de programas sociales públicos. Ese gasto social se financia principalmente con impuestos indirectos así como con las contribuciones específicas para la seguridad social. Cuando se considera el ingreso de mercado como referencia, solamente los impuestos directos resultan claramente progresivos, no así los impuestos indirectos ni las contribuciones a la seguridad social, que tienden a ser más neutrales en términos relativos. No obstante, la mayor parte de los programas sociales son progresivos, y algunos de ellos muy progresivos -especialmente los de transferencias monetarias, que son altamente focalizados-, lo cual resulta en reducciones en la pobreza y, principalmente, en la desigualdad. El estudio realizado hace evidente la enorme importancia de aumentar la magnitud y progresividad de los tributos, para darle sostenibilidad al gasto público social, así como fortalecer algunos programas focalizados que tienen un elevado impacto sobre los más pobres.</p><p> </p><p> </p>
LA INFLUENCIA DEL ACCESO AL USO DE COMPUTADORAS EN EDAD TEMPRANA SOBRE EL RENDIMIENTO EN MATEMÁTICAS
Authors: Fernández Aráuz Andrés 
Published: July 2015

<p>¿El acceso al uso de computadoras en edades tempranas tiene impacto sobre el rendimiento educativo de los estudiantes? La evidencia empírica de diseños experimentales muestra poca o nula relación entre el uso de las TIC’s y el rendimiento académico, evaluando los resultados a uno o dos años plazo, pero con la base de datos de la evaluación PISA se puede analizar esta asociación varios años después de que el estudiante tuvo acceso a una computadora por primera vez.</p><p>Realizando un análisis exploratorio de los datos de los estudiantes costarricenses en la evaluación matemática de PISA 2012, y mediante la estimación de un modelo de regresión lineal, se logra comprobar que incluso controlando por factores con alto poder explicativo del rendimiento académico, la edad a la que se tuvo acceso a una computadora por primera vez sí es un determinante del rendimiento educativo.</p><p><em> </em></p><p> </p>
Notas sobre o "Diário de Guerra de João Guimarães Rosa"
Authors: Ginzburg Jaime 
Published: July 2015

Resumo: Ainda inédito, o “Diário de guerra de Guimarães Rosa” se refere ao período em que o escritor viveu em Hamburgo o impacto da Segunda Guerra Mundial. Este artigo parte de uma pesquisa de pós-doutoramento realizada na UFMG e procura examinar alguns elementos do “Diário”, considerando o contexto delimitado pelo nazismo.Palavras-chave: Diário, guerra, violência, Guimarães Rosa.Abstract: Guimarães Rosa‘s Diary, still not published, has information about the period when he was in Hamburg, in World War II. This article, as part of post-doctoral studies, developed at UFMG, examines some of its elements, considering the Nazi government.Keywords: Diary, war, violence, Guimarães Rosa.
Orfeu Negro em Cores
Authors: Nagib Lúcia 
Published: July 2015

Orfeu, de 1999, dirigido por Carlos Diegues, um dos raros filmes atuais a falar do negro, retoma a tradicional apologia do afro-descednte por seus dotes musicais Vinicuis de Moraes, com sua peça Orfeu negro (1959) e ao Orfeu de Diegues, pretendeu universalizar a música negra (e, portanto a música brasleira0, ampliando- a de seu reduto de classe baixa, ligada ás orgias do carnaval e aos transes de terreiro, para a experiência sublime do amor absoluto. Para tanto recorreu claramente anti-realista. Ao adaptar Vinicius, Diegues acrescentou uma dimensão realista á história, tentando não perder os aspectos míticos e trágicos. De fato, no filme, a utopia do paraíso negro desenvolse-se pari passu com a dura realidade da favela.
Staphylococcus spp. em camarão minimamente processado refrigerado embalado a vácuo
Authors: Freire Bárbara Camila Firmino , Soares Karoline Mikaelle de Paiva , Souza Amanda Sabino de , Azevedo Antonio Cleyton Arruda de , Góis Vilson Alves de 
Published: July 2015

<p>O objetivo do presente estudo foi avaliar o efeito dos tratamentos com lactato de sódio, ácido cítrico e ácido lático na contagem de <em>Staphylococcus </em>spp. em camarão minimamente processado estocado em refrigeração. Após a coleta das amostras, realizou-se o processamento mínimo utilizando dois tratamentos distintos: o controle e a imersão em solução bioconservante. Em seguida, as mesmas foram embaladas a vácuo e estocadas em refrigeração. Foi realizada a contagem de <em>Staphylococcus </em>spp. a partir do dia zero e repetida em intervalos regulares de 48 horas durante quatro dias. A aplicação dos aditivos resultou em reduções significativas nas contagens de <em>Staphylococcus </em>spp. durante o armazenamento refrigerado, podendo representar uma alternativa viável para aumentar a qualidade e a segurança microbiológica do camarão minimamente processado.</p><p><strong> </strong></p>
Petit Gateau com recheio de doce de banana com e sem casca
Authors: Costa Rafaela Teixeira Rodrigues do Vale , Nascimento Ana Marinho do , Araújo Alfredina dos Santos , Silva Neto José Crisóstomo da , Dantas Cybelle de Oliveira 
Published: July 2015

<p>A busca por alimentos alternativos, visando o reaproveitamento de resíduos que seriam descartados, bem como a agregação de valor ao produto final com redução de custos e, a melhoria na qualidade nutricional do alimento possibilitou o desenvolvimento desse estudo para elaboração e posterior análise microbiológica, sensorial e físico-química de Petit Gateau com recheio de doce de banana com e sem casca. Nas análises microbiológicas, apenas o produto com casca apresentou contaminação, 0.3 NMP/g, para Coliformes a 30°C. Para os demais parâmetros, Coliformes a 45°C e Salmonela sp/25g, ambas as formulações apresentaram-se ausentes a contaminação. Sensorialmente, frente aos atributos analisados, não foram observadas diferenças significativas entre as formulações. Quanto as características físico-químicos, os valores médios encontrados para o produto sem casca foram 62.84% para umidade, 6.98% para cinzas, 7.77 para o pH, 9.9 para o °Brix, 0.55% para acidez, 17.94% para lipídeos e 2,6 N para textura. Para produtos com casca, os valores encontrados nas respectivas análises foram 65.55%, 7.53%, 7.66, 14.5, 0.55%, 16.01% e 1.5 N. Assim, Petit Gateau preparado com recheio de doce de banana com casca pode ser utilizado na indústria de alimentos como forma de minimizar desperdícios, reduzir custos e propiciar melhor qualidade nutricional do alimento. <strong> </strong></p>
Estudo etnofarmacológico sobre produtos naturais e sintéticos citados para tratamento de casos suspeitos de micoses superficiais no município de Cuité – PB
Authors: Oliveira Dayanne Fernandes , Lima Luiz Joardan Fernades de , Costa Danielly Albuquerque da , Alencar Maria Carmem Batista de , Carmo Egberto Santos 
Published: July 2015

<p><span>O uso de plantas medicinais remonta desde a antiguidade e estas representam uma importante ferramenta na promoção à saúde, em vista do uso indiscriminado de medicamentos e da resistência microbiana. Em razão disso, o presente trabalho, teve como objetivo investigar as plantas medicinais e produtos sintéticos utilizados pela população do município de Cuité – PB, para o tratamento de micoses superficiais, a fim de catalogar e preservar o conhecimento popular, e analisar se há confirmação científica na literatura que comprove a atividade biológica destas plantas e produtos. Foi adotado um questionário, com perguntas semiestruturadas, e o estudo contou com a participação de 116 indivíduos, sendo realizado no Hospital e Maternidade Nossa Senhora das Mercês em Cuité – PB. Os dados foram processados e analisados no programa SPSS (Statistical Package for the Social Sciences). Foram coletadas informações sobre as plantas e produtos utilizados, além da parte utilizada, forma de utilização, tempo de uso, e sobre como os participantes obtiveram a informação relativa à planta ou produto. A idade dos entrevistados variou na faixa etária de 18 à 84 anos, e o sexo feminino foi o mais prevalente com 61,2% do total. A maioria dos entrevistados (68%) revelou ter apenas o ensino fundamental incompleto, e as micoses citadas durante a pesquisa foram as <em>Tineas</em>, caspa, pitiríase versicolor e onicomicose. Parentes foram os principais responsáveis pelas indicações das plantas e produtos aos entrevistados, representando 69% do total. Foram citadas 15 plantas e 03 produtos sintéticos. As folhas foram as partes mais utilizadas (56%), e a maceração foi a forma de utilização prevalente (58%). Fava (<em>Phaseolus lunatus</em>), limão (<em>Citrus limon</em>), tinta de caneta, pólvora com limão, flor de são joão (<em>Pirostegia venusta</em>), babosa (<em>Aloe vera</em>) e juazeeiro (<em>Ziziphus joazeiro</em>) foram as plantas medicinais e produtos mais utilizados e/ou indicados. Portanto, este estudo foi de grande importância para a catalogação e comprovação na literatura do conhecimento popular a cerca das plantas medicinais e produtos sintéticos utilizados para o tratamento de micoses superficiais.</span></p>
Modelling of the Stability of Highly Inclined Boreholes in Anisotropic Rock Formations
Authors: Aadnøy B. S. 
Published: July 2015

Abstract
Simulators have been developed to study fracture and collapse behavior around boreholes. To take into account the directional properties of real rocks, an anisotropic stress model is used. In addition to take into account anisotropic elastic properties, directional shear and tensile strengths are also included. The orientation of the borehole, the in-situ stresses and the bedding plane can all be arbitrarely oriented relative to each other to model field situations. This paper presents some of the results of this model. It is shown that by neglecting the anisotropic effects, an error is introduced. Also, by studying the anisotropic model, further insight into the behavior of the borehole is gained.
Reperforation of North Sea Electric Submersible Pump Wells Using an ESP/Y-TOOL/TCP System
Authors: Dudley R W 
Published: July 2015

ABSTRACT
As a result of the increasing emphasis on reducing operating costs and minimizing deferred production, a new system was designed for the reperforation of wells lifted with Electric Submersible Pumps (ESP's). This paper describes an alternative method that can be used when a Tubing Conveyed Perforating (TCP) system is required for the underbalanced reperforation of an ESP well. The method employs a combined ESP/Y-tool/TCP assembly and can save approximately 24 hours in rig time over conventional methods. Use of the method can avoid substantial deferred or lost production, particularly when other wells requiring workovers are awaiting use of a rig at considerable cost. The system can also be used for the completion of new wells where an ESP is required from the outset.
The Main Area Claymore Reservoir, a Review of Geology and Reservoir Management
Authors: Chen H. K. , Robinson T. , Harker S. D. , Maher C. E. 
Published: July 2015

ABSTRACT
The Main Area Claymore Reservoir (MACR) is the major reservoir of the Claymore Field, located 110 miles northeast of Aberdeen in UK Block 14/19, offshore North Sea. An integrated team effort by geologists, geophysicists and engineers has led to an increase in recoverable oil for the MACR. Concurrently, the MACR production has increased from 47 to 57 MSTBPD from mid 1984 to the end of 1986.
The MACR is of Late Jurassic age. Fine-coarse grained sandstones of the Sgiath and Piper Formation are succeeded by the very fine – medium grained sandstones of the Claymore Sandstone Member (CSM) of the Kimmeridge Clay Formation. The CSM comprises the bulk of the MACR and is divided into two informal reservoir units: the Low Gamma Ray Sands and the High Gamma Ray Sands.
The principal early field problems were: lack of sufficient pressure support; uneven water advancement in both the horizontal and vertical directions; and a large pressure gradient across the reservoir. Thus, more offtake and selective injection points were required to improve oil recovery. Growth of geological and engineering knowledge of the MACR has resulted from infill drilling and the integration of RFT pressures, flow meters, well logs, detailed core studies and 3D seismic. Increased current oil production and recoverable reserves are the consequence of this work.
To improve oil recovery, a ten slot subsea template for water injection was installed in the summer of 1985. Three subsea water injectors have been drilled from this template and five platform wells redrilled as producers, to downdip areas of the MACR. The recent drilling programme owes its success to the combined efforts of a multi-disciplinary team, which resulted in the optimum placement of wells and the adoption of selective completion to optimise areal and vertical sweep efficiencies.
Relationship Between Cement Slurry Composition, Mechanical Properties, and Cement Bond Log Output
Authors: Jutten J. J. , Parcevaux P. A. , Guillot D. J. 
Published: July 2015

ABSTRACT
The objective of this paper is to describe and quantify the influence of cement slurry composition on the mechanical properties of the hardened cement and on the main output of the cement bond log: attenuation of the first arrival amplitude.
Laboratory experiments were performed in ambient conditions of pressure and temperature, with a laboratory type cement bond tool coupled to an oscilloscope and a data acquisition unit. The tool was immersed in oil filled, 4.5 inch, 11.3 lbm/ft casing. The annulus between the casing and a 9.5 inch PVC pipe backed by air was filled with the cement slurry.
The following mechanical properties were determined as a function of time: compressive strength, shear bond strength, total chemical contraction, velocity of compressional waves and resonance frequency.
More than 20 different cement slurry formulations were tested, with densities ranging from 10 to 19 lbm/gal, and containing as widely different additives as bentonite, soluble silicate, silica microspheres, hematite, salts, latex, dispersant and fluid loss agent.
Amongst many results and correlations, several conclusions can be drawn. The relationship between compressive strength and velocity of compressional waves, verified for most slurries, is not valid for salt containing slurries, when for all the systems tested, a single relationship exists between Young's modulus and Poisson's ratio. Particulate extenders like silica microspheres provide, for a given slurry density, higher acoustic impedance and CBL attenuation rate than chemical extenders like soluble silicates. Finally, latex in the cement does not influence the CBL.
A Study of Slip-Stick Motion of the Bit
Authors: Kyllingstad A. , Halsey G. W. 
Published: July 2015

ABSTRACT
This paper deals with torsional oscillations caused by slip-stick motion of the drillcollar section. This phenomenon is associated with a large amplitude, saw-tooth like variation in the applied torque. The term slip-stick motion refers to the belief that the amplitude of the torsional oscillations becomes so large that the drillcollar section periodically comes to a complete stop and does not come free until enough torque is built up in the drillstring to overcome the static friction.
A mathematical model of slip-stick motion is presented. This model includes parameters describing downhole friction effects and a simplified description of the drillstring. The effects of damping, finite rotary table inertia, and the rotary speed control system are discussed. Theoretical predictions from this model are compared with measured torque signals recorded during field drilling.
This kind of drilling performance is likely to be less effective than normal drilling and may also lead to fatigue problems. This paper discusses the possibilities for avoiding severe torsional oscillations by using a more sophisticated feedback system to control the rotary speed.
The Influence of Fermentation on the Content of Alkylresorcinols and Lignans in Plant Products
Authors: Bartkiene Elena , Skabeikyte Erika , Krungleviciute Vita , Jakobsone Ida , Bobere Natalija , Bartkevics Vadims , Juodeikiene Grazina 
Published: July 2015

The aim of this study was to evaluate the influence of solid state fermentation (SSF) and submerged fermentation (SmF) with bacteriocin-like inhibitory substances (BLIS) producing lactic acid bacteria (LAB) (Pediococcus acidilactici, Lactobacillus sakei and Pediococcus pentosaceus) on the content of alkylresorcinols (ARs) and lignans in plant products (barley bran, pea fiber, and lupine seeds).
Lignans analysis was performed by HPLC-MS/MS, and alkylresorcinols content was evaluated by GC/MS.
We found that with the experimentally tested LAB, under SSF conditions more organic acids were produced and in most cases a higher count of the LAB was found in SSF samples, compared to the SmF samples.
The matairesinol content was increased by using fermentation (from 7.9 to 35.4 % in pea fiber, from 33.2 to 81.5 % in lupine seeds, and from 5.9 to 74.9 % in barley bran), and in most cases a higher content of matairesinol was found in the SSF samples. The content of secoisolariciresinol in the fermented samples was found to be higher, in comparison to the untreated samples. It was found that the total lignans content in the pea fiber had a strong correlation with the amylase activity (R=0.7908; P=0.0177).
Our results suggested that the total ARs content in pea fiber, lupine seeds, and barley bran was 267 µg/g; 1757 µg/g, and 1488 µg/g, respectively, and by using the LAB fermentation, the ARs content was reduced by 40 to 73 %, by 10 to 77 %, and by 24 to 74 %, respectively.
We conclude that by using the LAB fermentation, the concentration of lignans in plant products could be increased, but the ARs content could be reduced, and the proper conditions should be selected for the fermentation, in order to prevent possible losses of these biologically active compounds.