bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of Compaction Equations for Powdered Pharmaceutical Materials
Authors: Eckert Maroš , Peciar Peter , Krok Alexander , Fekete Roman
Published: May 2018

The paper is focused on an analysis of the most frequently used compaction equations for powdered materials such as Heckel equation, Kawakita equation and Cooper-Eaton equation. Compacting powdered materials is accompanied by various mechanisms of densification dependent on the properties of the compressed material, which makes the equation more satisfactory for a certain group of materials and for another groups less so, or makes the equation completely unsuitable. To determine the suitability of the equation experimental measurements have to be implemented on an instrumented laboratory press. Then these obtained data are approximated by the specific compaction equation and use the regression analysis to determine the parameters describing the required material or physical properties of the compressed material.
Synthesis Gas from Pyrolysed Plastics for Combustion Engine
Authors: Chríbik Andrej , Polóni Marián , Lach Ján , Jančošek Ľubomír , Kunc Peter , Zbranek Josef
Published: May 2018

The article discusses the application of synthesis gas from pyrolysis of plastics in petrol engine. The appropriate experimental measurements were performed on a combustion engine LGW 702 designated for micro-cogeneration unit. The power parameters, economic and internal parameters of the engine were compared to the engine running on the reference fuel - natural gas and synthesis gas. Burning synthesis gas leads to decreased performance by about 5% and to increased mass hourly consumption by 120%. In terms of burning, synthesis gas has similar properties as natural gas. More significant changes are observed in even burning of fuel in consecutive cycles.
Mathematical Investigation of the Cavitation Phenomenon in the Nozzle with Partially Surface Wetting
Authors: Jablonská Jana , Kozubková Milada , Zavadilová Barbora , Zavadil Lukáš
Published: May 2018

Partially surface wetting has a great influence on friction losses in the fluid flow in both the pipeline system and the complex shape of hydraulic elements. In many hydraulic elements (valves, pump impellers), cavitation is generated, which significantly changes the hydraulic flow parameters, so the last part of the article is devoted to the mathematical solution of this phenomena and evaluates the impact of wall wetting on the size and shape of the cavitation area which appears in the nozzle and in small gaps at special conditions. If the cavitation appears e. g. near the wall of pipes, the blades of turbine or a pump, then it destroys the material surface. On the basis of this physical experiment (nozzle), a two-dimensional (2D) mathematical cavitation model of Schnerr-Sauer was made and calculated shape and size of the cavitation region was compared with the experiment. Later this verified model of cavitation was used for cavitation research flow with partial surface wetting. The pressure drop and the size of the cavitation area as it flows from partially surface wetting theory was tested depending on the adhesion coefficient.
CFD Simulation of a Natural Circulation Helium Loop
Authors: Knížat Branislav , Hlbočan Peter , Mlkvik Marek
Published: May 2018

The paper deals with a flow in a closed helium loop serving for cooling of a fast reactor. The flow in pipeline branches of the system is simulated by methods of CFD. The purpose is to find exact values of pressure losses, so that heat exchangers could be successfully designed and so that the power available for a loop drive could be optimally utilized. General approach to the simulation is presented, as well as the calculation procedure and achieved results.
Properties of EN AW-2024 Wrought Aluminum Alloy after Casting with Crystallization under Pressure
Authors: Vanko Branislav , Stanček Ladislav , Čeretka Michal , Sedláček Eduard , Moravčík Roman
Published: May 2018

Establishing of wrought aluminum alloys casting to manufacture is now a global trend, for example due to lower production costs compare to forging or due to the ability to produce parts with thinner sections and more complex shapes. The aim of using these alloys in the foundry industry is in particular the creation of castings with higher mechanical properties than achieve castings made of standard casting aluminum alloys. Most often are cast wrought aluminum alloys of the 2xxx, 6xxx and 7xxx series. In the experiment, an alloy EN AW-2024 has been cast by modified technology of casting with crystallization under pressure. They were measured basic mechanical properties of the castings in the as-cast state and after heat treatment.
The exchange rates – indicators for assessing the financial performance of the companies from Romania
Authors: Baltes Nicolae , Dragoe Alexandra-Gabriela-Maria
Published: May 2018

The research aims to determine the financial performance of the companies listed and traded on the Bucharest Stock Exchange from the manufacturing sector in Romania, compared with the performance recorded by the Bucharest Stock Exchange, based on the exchange rates. It was concluded that the financial performance of the companies included in the research, quantified on the basis of the exchange rates, decreased significantly with the arrival of the financial and economic crisis, currently, the companies being unable to reach the level of performance recorded before the crisis.
Environmental and social responsibility reporting. Do Macedonian companies disclose those information and how?
Authors: Mrsik Jadranka , Kostovski Ninko
Published: May 2018

Incorporating environmental impact into financial reports is becoming standard practice in the 21st Century. Investors are aware of the need for environmentally correct operations since failures in this domain lower the price of shares. However, in terms of regulation, in most of the countries, environmental reporting remains voluntary. Institutions dealing with development and promotion of the modern accounting and financial reporting standards encourage companies to concurrently report for their environmental activities. The only question is how. Accounting may include information on the environmental impact only if it is quantitative and monetary. Since many nuances of the issues remain difficult to quantify, corporations opt to separately report on their environmental practices. The aim of this paper is to examine the accounting and stock market regulations and the practice of reporting for environmental impact of the operations of the leading Macedonian companies. We selected ten companies that make the Macedonian Stock Exchange Index and additional five companies with significant environmental impact. We reviewed their annual reports and interviewed their financial officers. The results show that the environmental and social responsibility reporting is left to the companies and their management and its perception of the need for keeping posted the major stakeholders and the most appropriate way to do it. As a consequence, many large Macedonian companies do not refer to these issues in their annual addressing to the stakeholders. The findings of this paper can motivate the regulatory body and the government to require more transparency and disclosure of the sustainability information.
Numerical Simulations of Settlement of Jet Grouting Columns
Authors: Juzwa Anna , Bzówka Joanna
Published: May 2018

The paper presents the comparison of results of numerical analyses of interaction between group of jet grouting columns and subsoil. The analyses were conducted for single column and groups of three, seven and nine columns. The simulations are based on experimental research in real scale which were carried out by authors. The final goal for the research is an estimation of an influence of interaction between columns working in a group.
Numerical Calculation of Aerodynamic Roughness of Chimney Jacketed with Corrugated Sheets
Authors: Michalcova Vladimira , Lausova Lenka
Published: May 2018

The article deals with the influence of a shape of smokestack casing on the total load from wind effects. It describes possibilities of defining an equivalent aerodynamic roughness and aerodynamic drag coefficient for numerical modelling of the flow around a circular cylinder. The aim of this study is to solve the force coefficient for the smokestack of a cylindrical shape, which is jacketed with shaped sheets. The flow around a smokestack is solved in the ANSYS Fluent software using the DES model.
Performance Of The Visegrad Countries Compared To The EU-27 Countries, Based On The Sustainable Development Indicators Of The European Union
Authors: Bálint Csaba , Tóth Tamás
Published: May 2018

The aim of our study is to compare Visegrad countries and the other EU member states regarding sustainable development, based on the system of Sustainable Development Indicators of the European Union. We provide a brief overview of almost two decades of elaborating the Sustainable Development Strategy of the Community, review the structure and the main elements of the strategic document, and – using the method of cluster analyses – we group the member states comparing them on the basis of specific headline indicators. Our goal was not a deep investigation, but a compact, thought-provoking analysis; this is the reason why we concentrated on the main indicators. As a result of the analysis, our hypothesis seems to be confirmed: the EU-15 countries and the rest of the member states belong to different clusters, which means that there are significant inequalities, especially from the economic and social aspects of sustainability.
Farm Structure And Efficiency In The Hungarian Agriculture
Authors: Tóth Orsolya , Takács István
Published: May 2018

It has long been the subject of empirical researches to examine the technical efficiency on farm (micro) level. Two main methods are most often used in the empirical literature: the non-parametric Data Envelopment Analysis (DEA) based on linear programming, and the Stochastic Frontier Analysis (SFA) introduced by Aigner, Lovell and Schmidt (1977). The present study aimed to investigate the technical efficiency of farms involved in agricultural activities in Hungary using the DEA-method and the data from the Hungarian FADN database. The technical efficiency was examined based on legal forms, farm size categories and the type of farming between 2001 and 2013.
Right-to-Food: Strengthening the Legal and Political Concepts Through Soft Governance
Authors: Blizkovsky Petr
Published: May 2018

Addressing poverty issues in the developing world, and hunger issues in particular, is top of the global list of collective actions. However, in spite of the right-to-food commitments taken by global leaders and the international community, the problems are persisting. This article analyses the concept of “right-to-food” from legal and political points of view and looks at the shortcomings for its implementation. A governance analysis is provided together with recommendations for improvement. The experience of the European Union of economic coordination is utilised for improving intergovernmental cooperation for food security. The Food Security Implementation Procedure is considered as a soft method based on a voluntary participation with an objective to strengthen international coordination, national ownership and effective involvement of the non-public sector.
Network Farming Co-operation Concept for Sustainable Agribusiness
Authors: Balazs Illes
Published: May 2018

This article starts with a broader view on the Hungarian agricultural holding system in order to find improvement possibilities in this segment. It is established on the supposition that a vertically created chain that could bring joint effort to create a group or network among the various actors in agribusiness which can lead to a more profitable operation, it can enhance sustainability and create technological development. The article also represents the energy farm concept where the different agricultural actors can work together in a sustainable system which can generate welfare to their production site and also to their settlement.
Endohelminths of Cypriniform Fish from Waterbodies of the Syrdarya River: Fauna and Distribution / Гельминты карпообразных рыб водоёмов реки Сырдарьи: фауна и распространение
Authors: Safarova F. E. , Akramova F. D. , Azimov D. A. , Golovanov V. I. , Shakarboev E. B.
Published: May 2018

Fauna and distribution patterns of the endohelminths of Cypriniformes from water bodies of the mid-course of the Syrdarya River were investigated. Forty-nine endohelminth species were recorded from Cypriniformes in this region, including 18 species of trematodes, 13 species of cestodes, 14 species of nematodes and 4 species of acanthocephalans. Twenty-nine species are first reported from this region. Original data on the composition and structure of endohelminth communities are given.
A New Species Of Globicornis (Hadrotoma) (Coleoptera, Dermestidae, Megatominae) From Baltic Amber
Authors: Háva J. , Damgaard A. L.
Published: May 2018

The species Globicornis (Hadrotoma) ingelehmannae sp. n. from Baltic amber is described, illustrated and compared with all known amber species of Globicornis Latreille, 1829. New species differs by the shape of antennae and black setation on dorsal and ventral surfaces.
Strength-based faithfulness and the sibilant /s/ in Italian
Authors: Baroni Antonio
Published: May 2018

Notwithstanding the primacy of the CV syllable, a number of languages allow for more complex types of syllables. In particular, word-initial consonant clusters are particularly challenging for any phonological theory. In this paper it is argued that obstruent clusters may be the result of casual speech processes where the most salient/ frequent phonemes and features occurring in most pronunciation variants of a word are preserved. As a result, sibilants, being acoustically salient, tend to occur more often than other obstruents as the first member of word-initial obstruent clusters. A framework couched in Optimality Theory is presented, where a subfamily of faithfulness constraints refer to strength values stored in the underlying representation. The more salient and/or frequent a phoneme/feature is, the higher the strength value assigned to it. Finally, a number of languages are compared, arguing that their phonotactic differences may be due to the different ranking of markedness constraints and MAX-STRENGTHVALUE constraints.
Comparing rhythm in speech and music: The case of English and Polish
Authors: Jekiel Mateusz
Published: May 2018

The point of departure for the following study is Patel and Daniele (2003), who suggested that the rhythm of a culture’s language is reflected in its instrumental music. The former study used the normalised pairwise variability index (henceforth nPVI), a measure of temporal patterning in speech, to compare the variability of vocalic duration in recorded speech samples with the variability of note duration in music notation on the example of English and French speech and classical music. The aim of this experiment is to test whether the linguistic rhythm conventionalised in the language of a community affects the rhythm in the musical practice of that community, by focusing on English and Polish speech and classical, as well as folk music. The nPVI values were obtained from a set of English and Polish recorded news-like sentences, and from musical notation of English and Polish classical and folk musical themes. The results suggest that reflections of Polish speech rhythm may be more apparent in folk music than in classical music, though more data are needed to test this idea. This initial study suggests that the method used might bring more fruitful results when comparing speech rhythm with less formalized and more traditional musical themes.
An application of graph theory to linguistic complexity
Authors: Piperski Alexander
Published: May 2018

This article introduces a new measure of linguistic complexity which is based on the dual nature of the linguistic sign. Complexity is analyzed as consisting of three components, namely the conceptual complexity (complexity of the signified), the formal complexity (complexity of the signifier) and the form-meaning correspondence complexity. I describe a way of plotting the form-meaning relationship on a graph with two tiers (the form tier and the meaning tier) and apply a complexity measure from graph theory (average vertex degree) to assess the complexity of such graphs. The proposed method is illustrated by estimating the complexity of full noun phrases (determiner + adjective + noun) in English, Swedish, and German. I also mention the limitations and the problems which might arise when using this method.
Individualismo e identidad humana
Authors: Álvarez Eduardo
Published: May 2018

Este ensayo aborda el problema de la identidad individual del ser humano en la época posmoderna, en la cual la lógica individualista imperante pone en peligro valores que el humanismo clásico asociaba a la condición del sujeto autónomo, a la vez que promueve la existencia de un individuo narcisista y hedonista que se repliega en su vida privada y se aparta de todo interés por la esfera intersubjetiva.
Metafísica y dinámica caótica
Authors: Aboites Vicente
Published: May 2018

A partir de un enfoque internalista para los estados mentales, se propone que los términos metafísicos son el resultado de estados mentales que, a su vez, son propiedades emergentes de sistemas dinámicos caóticos con atractores coexistentes en el cerebro. Se sugiere que esto proporciona una explicación física para los conceptos metafísicos. Esto se hace a partir de la propuesta de que todos los sistemas dinámicos con atractores coexistentes caóticos, como el cerebro, presentan propiedades emergentes. Obtenemos así una explicación no reductiva de los estados mentales y su alta sensibilidad al ruido y a las condiciones iniciales.
A la búsqueda de un canon literario mexicano: de El Recreo de las Familias a El Renacimiento
Authors: Kurz Andreas
Published: May 2018

El siguiente trabajo presenta los esfuerzos de las revistas culturales mexicanas del siglo XIX en la búsqueda de un canon literario propio. Dicha empresa fue muy complicada, en primer lugar por la situación política inestable del país, así como por la constante indecisión sobre qué influencias aceptar y cuáles rechazar. La elección final se vio determinada en buena medida por motivos políticos, lo cual no la hace menos valiosa.
Más allá y más acá del papel en blanco. El café, el bar y las tertulias en el “fin de siglo” mexicano
Authors: Pascual Gay Juan
Published: May 2018

En este ensayo encontraremos una indagación sobre la democratización de los espacios públicos y la relación de este fenómeno con otro más íntimo: el despliegue de las ideas y la escritura. El texto parte del último cuarto del siglo XIX, exponiendo el evidente contraste entre las clases sociales en México. El autor expone la caracterización de algunos de los clubes más importantes frecuentados por la alta sociedad, su lujo y elegancia, en contraste con las cantinas, sitios de distracción para el pueblo. Luego, lugares como el bar y el café, donde se desarrolló la tertulia, cobraron importancia a raíz de la diversidad de la gente que asistía a ellos, permitiendo así la convivencia de los diferentes grupos sociales. Estos recintos albergaron a los escritores del romanticismo tardío, lo mismo que a modernistas, a los integrantes de Contemporáneos, de Taller y a la generación de Medio Siglo. Producción literaria que en ocasiones se gesta, se desarrolla o se transforma en estos sitios de discusión y reflexión.
Vila-Matas portátil. Un escritor ante la crítica Margarita Heredia Barcelona, Candaya, 2007
Authors: Ayala Bertoglio Daniel Ikingari
Published: May 2018

Vila-Matas portátil. Un escritor ante la crítica Margarita Heredia Barcelona, Candaya, 2007
El rapto de la memoria
Authors: Subirats Eduardo
Published: May 2018

Revisar la perspectiva dominante acerca de los mitos constitutivos de la hispanidad en la península ibérica y la periodización eurocéntrica de la historia civilizatoria de América Latina es una tarea que está por hacer. Supone asumir que los momentos culminantes de las culturas que atravesaron los territorios peninsulares y continentales no coinciden con las clasi!caciones canónicas de una Edad de Oro y sus sombras coloniales, y mucho menos con su homologación con las expresiones !losó!cas, cientí!cas o artísticas del Renacimiento europeo. Américo Castro puso de mani!esto que los renacimientos cientí!cos y artísticos de las culturas ibéricas coinciden más bien con el auge del Islam y la cultura judía en la España árabe de los siglos XII y XIII y termina con la liquidación del reino islámico de Granada.
El fundamento y el uso de las clasificaciones científicas: dinámicas desfasadas
Authors: Christiansen Renaud María L.
Published: May 2018

Este artículo plantea de forma sucinta problemas epistemológicos ligados a las prácticas clasi!catorias de la psiquiatría y la psicología, al revisar de modo crítico algunas de las premisas del movimiento antipsiquiátrico en su ofensiva contra el modelo naturalista de la psicología médica. En el intento abordar el debate desatado entre realistas y constructivistas en torno a la noción de enfermedad mental y sus derivaciones taxonómicas se expone la tesis propuesta por el !lósofo e historiador Ian Hacking bajo la expresión de un bucle de retroalimentación entre los médicos (clasi!cadores), los pacientes (clasi!cados) y los sistemas de conocimiento (marcos categoriales). Por último se proyectan las ideas analizadas hacia un enfoque dominante en el terreno de la psicología actual: la psicometría, con el propósito de explorar, en este caso particular, el rendimiento explicativo de las posturas epistemológicas presentadas.
Progreso científico mediante convergencia cognitiva. Socavando la inferencia pesimista
Authors: Guillaumin Juárez Godfrey
Published: May 2018

La idea de progreso cientí!co ha sido estudiada por diferentes autores como Philip Kitcher (2001), Hasok Chang (2004) y Alexander Bird (2007). En cierto sentido son reacciones a los planteamientos tradicionales que realizaron sobre el mismo tópico .omas Kuhn (1962), Larry Laudan (1977), Irme Lakatos (1970) y Ilkka Niiniluoto (1984). Estos autores clásicos articulan la noción de progreso cientí!co con base en cuatro pilares: a) la idea de progreso como interna a disciplinas; b) la medición principal del progreso es la resolución de problemas, c) las teorías como las depositarias dominantes del conocimiento cientí!co y d) una distinción entre progreso empírico y progreso teórico. En este trabajo evalúo críticamente estas tesis para mostrar que tienen algunas fallas, que es necesario corregir para elaborar una noción de progreso cientí!co que supere los retos cognitivos de la así llamada inferencia pesimista.
Effects of intravenous thyrotropin-releasing hormone on 18F-fluorodeoxyglucose uptake in human brown adipose tissue: a randomized controlled trial
Authors: Heinen Charlotte A , Zhang Zhi , Klieverik Lars P , de Wit Tim C , Poel Edwin , Yaqub Maqsood , Boelen Anita , Kalsbeek Andries , Bisschop Peter H , van Trotsenburg A S Paul , Verberne Hein J , Booij Jan , Fliers Eric
Published: May 2018

Objective

Brown adipose tissue (BAT) activity in humans is stimulated by cold and by a limited number of pharmacological agents, including β3-adrenergic agonists and bile acids. Although thyrotropin-releasing hormone (TRH) is known to activate BAT in several mammals, this has not been reported in humans.

Design

A randomized, placebo-controlled, double-blind, cross-over trial.

Methods

We investigated the effects of intravenous bolus administration of 400 µg TRH or 2 mL saline on BAT activity in healthy, lean men. BAT activity was measured as standardized 18F-fluorodeoxyglucose (18F-FDG) uptake and glucose metabolic rate (MRglu) using dynamic PET/CT imaging. The first six individuals were studied at room temperature, while subsequently nine were exposed to mild cold (17°C ± 1°C) for 60 min before imaging. During the dynamic scan, blood was withdrawn for measurement of thyroid hormone and catecholamine concentrations. This trial is registered with The Netherlands National Trial Register (number NTR5512).

Results

Sixteen participants were recruited. Six men studied at room temperature showed no visible BAT activity during either session. After exposure to mild cold, four of nine men (44.4%) showed clear increase of 18F-FDG uptake after TRH administration compared to placebo. Maximal standardized 18F-FDG uptake showed a trend toward increase after TRH compared to placebo (P = 0.066). MRglu showed a significant increase after TRH administration (P = 0.014). The increase in 18F-FDG uptake was not paralleled by changes in plasma thyroid hormone or catecholamine concentrations.

Conclusion

Systemic TRH administration can increase the activity of cold-stimulated BAT in adult men. These findings may assist developing pharmacological strategies for modulating BAT activity in the management of obesity.
Soil–atmosphere interactions for analysing slopes in tropical soils in Singapore
Authors: Toll David G , Md. Rahim M Syazwan , Karthikeyan M , Tsaparas Ilias
Published: May 2018

The modelling of soil–atmosphere interactions for slopes requires a proper understanding of the relevant soil parameters (soil water retention curve and the permeability function). This paper reports on numerical investigations of an instrumented residual soil slope in Singapore. The objective of the paper is to provide practical suggestions for choices of hydraulic parameters that can provide realistic predictions in analysing practical problems. The analyses use an uncoupled unsaturated flow model and a hydromechanical coupled model with time-dependent boundary conditions. The results obtained using measured weather data for the slope were validated against field measurements of pore-water pressure changes. The models were able to capture the trend of changes in the pore-water pressure due to rainfall events provided that account was taken of a more permeable surficial layer due to the presence of desiccation cracking and root passages. A comparative study of stability shows that the mobilised shear strength drops quickly during a rainfall event but recovers much more slowly during drying. This shows how a series of regular rainstorms with short periods of drying in between can cause a ratcheting effect, with rapid loss of strength during each period of rain that is not recovered during the intermediate drying periods.
The effect of consolidation on undrained behaviour of granular materials: experiment and DEM simulation
Authors: Rahman Md Mizanur , Nguyen Hoang Bao Khoi , Rabbi Abu Taher Md Zillur
Published: May 2018

The characteristic features of undrained responses of granular materials, for example, stress ratio at instability ( η IS) and phase transformation ( η PT) states and the critical state (CS) behaviour, are often influenced by the consolidation history. However, there are limited studies in the literature, and a consensus has not yet been reached. This study combined the triaxial test of yellow silty sand and the three-dimensional discrete element method (DEM) simulation of ellipsoid particles under a triaxial condition to evaluate the effect of isotropic and K 0 consolidations. Triaxial test data formed non-unique CS lines (CSLs) in the e–log(p′) space for isotropic and K 0 tests, whereas the CSL was unique for DEM simulations; where e and p′ are the void ratio and mean effective stress, respectively. The micromechanical quantities, coordination number (C N) and fabric anisotropy (F vM) at the CS, also showed a unique relation with p′. The characteristic features, η IS and η PT, showed good correlation with the state parameter (ψ ) and the density indices. It was found that the η IS decreased with ψ, and the correlation was dependent on consolidation type. The micromechanical analysis suggested that F vM is a better parameter than C N to characterise the macromechanical behaviour. This study unambiguously supports the applicability of CS theory and provides insights into micromechanics of granular materials.
Pamukova’nın tarımsal sorunları ve çözüm önerileri: Üretimde uzmanlaşma
Authors: ARICI Fatih
Published: May 2018

Tarım sektörü, nüfusun geçimi ve beslenmesindeki öneminden ötürü geçmişte ve günümüzde olduğu gibi gelecekte de önemini koruyacaktır. Bu nedenle karşılaşılan tarımsal sorunların çözümü bu faaliyetin devamlılığı için bir zorunluluktur. Bu çalışmada Pamukova coğrafi ünitesinde yer alan kırsal yerleşmelerin tarımsal sorunları ele alınarak çözüm önerisi geliştirme amaçlanmıştır. Mevcut durum ve sorunların tespitinde nitel araştırmalarda veri toplamada yaygın olarak kullanılan görüşme (mülakat) tekniğine başvurulmuştur. Gözlem, ikincil veriler ve mülakatlardan elde edilen bilgiler analiz edilerek sorunlar belirlenmiştir. Yörede yaşanan sorunları üretim ve pazarlama aşamalarındaki sorunlar biçiminde iki kategoride toplamak mümkündür. Üretim aşamasındaki sorunlar başlığı altında; sulama, toprak kullanımı, tarımsal girdi ve destekleme yer almaktadır. Pazarlama başlığı altında ise; pazarlama esnasında karşılaşılan dolandırıcılık, ürün taban fiyatının olmaması, satış kooperatiflerinin bulunmaması gibi bazı sorunlar yer almaktadır. Yörede yaşanan tarımsal sorunların temelinde daha çok üretim ve pazarlama yapısında bir planlama eksikliği bulunduğu anlaşılmaktadır. Bu eksikliğin giderilmesi için sahadaki doğal ve beşeri faktörlerin tarımsal faaliyetler üzerindeki etkileri ve tarımla ilişkileri de incelenerek tarımsal üretimde uzmanlaşma yaklaşımı çözüm önerisi olarak belirlenmiştir. Belirlenen bu yaklaşım doğrultusunda yöre tarımsal yapısına dair bir planlama yapılmıştır.
Adubação verde na produtividade de salsa e na fertilidade do solo
Authors: Costa-Mello Simone da , Nimi-Kassoma Josina , Quesada-Roldán Gustavo , Dantas-da Silva Adriano , Donegá Mateus Augusto , Santos-Dias Carlos Tadeu dos
Published: May 2018

Los abonos verdes han sido utilizados con éxito en la producción de hortalizas como fuente de nitrógeno y como acondicionador del suelo, principalmente en áreas degradadas. Sin embargo, la información referente a esos efectos en el cultivo del perejil es escasa. Así, abonos verdes como Mucuna deeringiana, Crotalaria juncea y Crotalaria spectabilis fueron estudiados en las propiedades físicas y químicas del suelo y en la productividad de dos cultivares de perejil (Lisa Preferida y Graúda Portuguesa). Dos experimentos fueron realizados en el Departamento de Producción Vegetal de la Escuela Superior de Agricultura “Luiz de Queiroz”, en Piracicaba-SP, Brasil. Se evaluaron propiedades físicas del suelo como la densidad (real o aparente), porosidad total, macroporosidad y microporosidad, que no fueron alteradas por los abonos verdes en relación al control en los dos experimentos. También propiedades químicas del suelo como el pH, contenido de materia orgánica y nutrimentos, quienes presentaron cambios en el segundo experimento, cuando las concentraciones de Ca, P y la suma de bases aumentaron con la aplicación de los abonos verdes de forma significativa. En suelos con alta fertilidad, como el estudiado, se dificulta encontrar beneficios a partir de una única fertilización con abonos verdes. La productividad del perejíl en el primer experimento aumentó en promedio 61% después de la fertilización con abonos verdes en relación al control (14,9 t ha-1), independiente de la especie de abonos verdes utilizada. En el segundo experimento, la productividad del perejíl no aumentó con la fertilización de esos abonos en relación al control, posiblemente porque las condiciones abióticas afectaron la producción de biomasa de los abonos verdes y del propio perejil producido en ese ciclo.
Applications of calcium and boron increase yields of Italian tomato hybrids (Solanum lycopersicum) in two growing seasons
Authors: Zamban Débora T. , Prochnow Daiane , Caron Braulio O. , Turchetto Mônica , Fontana Daniele Cristina , Schmidt Denise
Published: May 2018

El objetivo de este estudio fue evaluar el efecto de tratamientos de boro edáfico y frecuencia del calcio foliar en floración, sobre la producción y ocurrencia de la pudrición apical de híbridos de tomate italiano, cultivados en el sistema convencional en dos temporadas de cultivo. Se realizaron dos experimentos en el área experimental perteneciente a la Universidade Federal de Santa Maria, campus de Frederico Westphalen (Brasil), en los años 2012 y 2013. El diseño experimental fue de bloques al azar con un arreglo factorial 2×2×3×3 cuyo factores fueron dos híbridos (San Vito y Neptuno), en dos épocas de cultivo (primavera-verano y verano-otoño), tres dosis de boro (0; 2,0 y 4,0 g/planta) y tres frecuencias de aplicación de calcio (ausencia de aplicación, aplicación semanal y quincenal) y cuatro repeticiones. El trasplante de plántulas se realizó el día 04 de septiembre de 2012 para la primavera-verano y el 26 de enero para el verano-otoño. El híbrido Neptuno es más productivo en comparación con el híbrido San Vito, pero más susceptible a la pudrición apical. Las dos épocas de cultivo pueden ser recomendadas para el cultivo del tomate italiano en Rio Grande do Sul, aunque el cultivo de primavera-verano presenta mayor productividad cuando se compara al verano-otoño. La frecuencia de aplicación quincenal de CaCl2 al 0,6% se constituye en la mejor opción de manejo de fertilización, en el sentido de obtener mayor productividad y menor número de frutos con incidencia de pudrición apical. El incremento de la dosis de boro condiciona mayor número de frutos por planta y aumento de la productividad.
A comparative study between conventional nasal packing versus nasal splint with clip after septoplasty with bilateral reduction of inferior turbinates with bipolar cautery
Authors: Pandurangarao Santosh Uttarkar , Murugendrappa Mallikarjunappa Ajjampura , Jonnalagadda Dheeraj Kumar , Panicker Raga , Janarthanan Sridurga
Published: May 2018

Background: Nasal packing is an important step after septal surgeries. Conventional nasal packing with vaseline gauze is associated with significant morbidity. Of late, the nasal splint with clip has been tried as an alternative in an attempt to prevent this morbidity. The aim of our study is to compare post-operative morbidities of conventional nasal packing (using vaseline gauze) and nasal splint with clip following septoplasty and cauterization of inferior turbinates.

Methods: A comparative study was conducted on 50 patients who underwent septoplasty surgery with reduction of both inferior turbinates using bipolar cautery. In the postoperative period, patients were assessed for pain, nasal obstruction, head ache and ear complaints.  

Results: Patients in whom nasal splint with clip were used, were found to have a more comfortable postoperative period when compared to conventional nasal packing, which was found to be statistically significant.

Conclusions: Post-operative morbidity has been found to be significantly lower with nasal splint with clip in comparison to conventional nasal packing using vaseline gauze.
Rosa: as Representações de Gênero na Composição de Pixinguinha
Authors: Ferreira Martins Ribeiro Alexandra , Oliveira Araújo Rebeca , Polidori Zechlinski Beatriz
Published: May 2018

O presente trabalho tem por objetivo geral analisar as representações de gênero contidas na letra da música Rosa, composta por Pixinguinha, na década de 20 do século XX. O estudo procura relacionar as representações de gênero contidas na composição de Rosa e os pensamentos e práticas culturais do período, promovendo uma reflexão acerca do papel do amor, do casamento e da ordem social naquela sociedade. A metodologia utilizada foi a análise de conteúdo (BARDIN, 2015) das fontes, valendo-se dos estudos teóricos de Burke (1991), Maluf e Mott (1998), Chartier (2002), Del Priore (2005), Saliba (2012) e Carvalho (2014). Os resultados demonstram que na composição de Rosa, a mulher é idealizada como pura, calma, mãe, bela e em sintonia com seus deveres de rainha do lar.

Rosa: The Representations of Gender in the Composition of Pixinguinha

The present work has the general objective to analyze the representations of genres contained in the lyrics of Rosa, composed by Pixinguinha, in the twenties of the twentieth century. The study seeks to relate the representations of gender contained in the composition and the cultural thoughts and practices of the period, promoting a reflection on the role of love, marriage and social order in that society. The methodology used was the content analysis (BARDIN, 2015) of the sources, using the theoretical studies of Burke (1991), Maluf and Mott (1998), Chartier (2002), Del Priore (2005), Saliba and Carvalho (2014). The results show that in Rosa's composition, the woman is idealized as pure, calm, mother, beautiful and in line with her duties as queen of the home.
El problema de la violencia en el Distrito de Coalcomán, Michoacán (ca. 1940-1980
Authors: Guerra Enrique
Published: May 2018

Este artículo analiza varios tipos de violencia que asolaron al distrito de Coalcomán, Michoacán, ca. 1940-1980, originados en motivos agrarios, diversas formas de delincuencia, siembra de enervantes (violencia instrumental), pistolerismo y vendettas (violencia ritual). Se argumenta que si bien el Estado se esforzó por eliminar a todas ellas, halló mayores dificultades para combatir el pistolerismo y las vendettas. Ello fue así porque la violencia ritual está más arraigada en el habitus de las personas y requería no sólo del desarme de la población (medida a la que más se apostó) sino también de una vigorosa campaña para reformular el habitus y civilizar las pasiones, tarea que un Estado con fuertes debilidades infraestructurales se mostraba incapaz de asumir. Para dar cuenta de lo anterior, el artículo se apoya ante todo en fuentes de primera mano, y en una conceptualización acotada de la violencia, que distingue entre violencia instrumental y violencia ritual.
Las instituciones a prueba. Los ferrocarriles en el Distrito Federal, 1878-1882
Authors: Aguayo Hernández Fernando
Published: May 2018

Este texto analiza un conflicto que enfrentó a dos compañías ferroviarias en el periodo de 1878 a 1882: la Compañía de los Ferrocarriles del Distrito Federal y la Compañía Limitada de las Tranvías con Correspondencia del Distrito Federal. A partir de su estudio se observa el funcionamiento, interacción y enfrentamiento entre las instituciones en los distintos niveles de gobierno. También recupera las consecuencias positivas que tuvo la confrontación para la extensión de la red ferroviaria en la capital del país, entre otras.
Pedro Henríquez Ureña y Alfonso Reyes en Argentina (1924-1930): una presencia de México en el Río de la Plata
Authors: Neubauer Cecilia Guadalupe
Published: May 2018

Durante los años veinte, el mundo cultural rioplatense se encontraba en plena ebullición con la emergencia de la vanguardia artística y literaria, sumada a la emergencia progresiva del campo intelectual como espacio autónomo. El objetivo que perseguimos es analizar la presencia de los ex ateneístas Pedro Henríquez Ureña y Alfonso Reyes en el mundo de las revistas literarias del Río de la Plata entre los años 1924 y 1930. Esta presencia confirmó un diálogo novedoso con una realidad de igual talante: un espacio latinoamericano de reflexión y discusión. La originalidad del presente trabajo radica en el diálogo establecido entre los pensadores ya mencionados y los temas que impulsaron las publicaciones seleccionadas, como la Reforma Universitaria, el canon literario y la emergencia de la Vanguardia argentina, a la vez de la generación de contactos con otras realidades continentales, como el estudiantado mexicano y el grupo literario conocido como los Contemporáneos.
Los desafíos de la memoria
Authors: Meyer Eugenia
Published: May 2018

El objetivo del texto es reflexionar sobre el desafío permanente de la memoria en el quehacer de la historia y del historiador como constructor de versiones históricas del pasado. Se destacan tres puntos importantes: los testimonios personales de aquellos que fueron protagonistas o espectadores de acontecimientos políticos, económicos o sociales de épocas pasadas reflejan la pluralidad de visiones sobre un hecho; las evidencias testimoniales como parte fundamental de la historia oral enriquecen y nutren la información documental, no la sustituye, la complementa; finalmente, se enfatiza en la construcción de una historia múltiple, reformable, transformable y sujeta a una reescritura permanente, una historia que se contrapone a la visión mítica y oficialista de la historia por encargo.
Vigiando os vigilantes: uma abordagem sobre o Panoptismo a partir de Watchmen
Authors: Fornasier Mateus De Oliveira , Da Silva Thiago Dos Santos
Published: May 2018

Este artigo objetiva apresentar uma discussão filosófica a partir da obra Watchmen, abordando assuntos como o panoptismo e o utilitarismo (Bentham), discutindo a supervigilância na atualidade. O problema que norteia a elaboração do trabalho é: é possível discutir sobre questões filosóficas, morais e políticas a partir da mídia das graphic novels? Como hipótese, apresentou-se que sim, dado o alto teor filosófico apresentado em Watchmen, inspirado na crítica literária das ideias de panoptismo e utilitarismo. O texto tem, como objetivos específicos: 1) Introdução e comentários críticos acerca da graphic novel Watchmen; 2) explicação do panoptismo, com ênfase na supervigilância presente na pós-modernidade; e 3) estabelecimento de um paralelo entre a obra Watchmen e o panoptismo. Sua metodologia é dialética, estabelecendo-se uma conversação interdisciplinar entre a obra Watchmen e o panoptismo.Palavras-Chave: Panoptismo. Watchmen. Vigilância.
Proposições metodológicas para o ensino de Física na educação de jovens e adultos à luz da Teoria da Aprendizagem Significativa
Authors: Krummenauer Wilson Leandro , Wannmacher Clovis Milton Duval
Published: May 2018

Neste artigo, descrevemos propostas metodológicas para o ensino de Física na Educação de Jovens e Adultos (EJA) fundamentadas na Teoria da Aprendizagem Significativa (TAS) que objetivaram reduzir a evasão e despertar no aluno o interesse pela Física. As metodologias específicas para esta modalidade de ensino revelaram que propostas articuladas a partir do conhecimento prévio dos alunos são potencialmente significativas visando aumentar os níveis de interesse pela ciência, tornando uma Física não de fórmulas prontas, mas uma Física mais próxima do aluno. Os resultados também revelam que as propostas fundamentadas nesta teoria de aprendizagem reduziram significativamente os índices de evasão comparados a anos anteriores.Palavras-chave: Ensino de Física. Aprendizagem significativa. Educação de jovens e adultos.
"Cisne Negro": metamorfoses constituidoras do aprender
Authors: Jacobi Daniel Felipe , Habowski Adilson Cristiano , Conte Elaine
Published: May 2018

O presente estudo analisa a obra cinematográfica “Cisne negro” em sua linguagem simbólica, que nos traz concepções estéticas e visões de mundo, de cultura, de ser humano, bem como questões que nos levam a pensar na inter-relação entre o caos e a força cósmica, possibilitando aprender a partir de nossas limitações e deficiências. Trata-se de uma abordagem hermenêutica que interpreta e compreende o conjunto do filme em suas contradições como uma possibilidade de estabelecer um contraponto entre o cosmos e o caos. Nesse sentido, apresentamos questões subjacentes ao filme que refletem alguns problemas projetados na contemporaneidade e na própria metamorfose do aprender, que vão desde o sacrifício das pessoas em função de um modelo ou um padrão desumano de perfeição, até o extremo da destruição e estranhamento de si pela constituição humana imperfeita e inacabada, o que pressupõe a necessidade de uma aprendizagem evolutiva e solidária.Palavras-chave: Cisne negro. Caos. Cosmos. Metamorfose do aprender.
A Lei 13.415/2017 (Reforma do Ensino Médio) e os retrocessos contidos na previsão legal de professores com “notório saber”
Authors: Santos Pablo Silva Machado Bispo dos
Published: May 2018

A política educacional brasileira está longe de poder ser entendida mediante uma visão linear devido a seus fluxos e refluxos.  Um exemplo disso está na promulgação de uma Reforma do Ensino Médio (originária da MP 746/2016, e, posteriormente convertida na Lei 13.1415/2017) que faz com que alguns aspectos deste nível de ensino retome uma forma e um conteúdo presente em contextos educacionais de várias décadas atrás.  O presente artigo se propõe a analisar a legislação pertinente com foco na comparação entre tal legislação e outras reformas educacionais anteriores, no sentido de demonstrar que a despeito da propaganda governamental que apresenta a Reforma como algo inovador, estaríamos em verdade voltando ao passado, especialmente no que tange ao resgate da noção de “notório saber'.Palavras-chave:  Política Educacional. Formação de Professores. Ensino Médio.
ANALISIS DE LA RESISTENCIA Y DUCTILIDAD EN MARCOS DE CONCRETO REFORZADO
Authors: Rodríguez* Mario , Montoya** Carlos
Published: May 2018

Se evalúan mediante de procedimientos analíticos la resistencia y capacidad de ductilidad de curvatura de vigaz y columnas de marcos de tres edificios de concreto reforzado, diseñados con diferentes reglamentos de construcción para la Ciudad de México. Las capacidades de ductilidad de curvatura se relacionan con la ductilidad global de desplazamiento de la estructura obtenidad mediante procedimiento simplificados de análisis.Se encontró que las resistencias y capacidades de ductilidad locales en vigas y columnas de los marcos estudiados que se diseñaron con reglamentos anteriores al del 1987, ayudan a explicar el comportamiento observado en edificios durante el terremoto de 1985 en México. Los resultados encontrados en la estructura diseñada con el criterio de marcos dúctiles del Reglamento de Construcción del DF de 1987, muestran mejoras sustanciales tanto en la ductilidad de la estructura como en el comportamiento sísmico de éstas.En base a las propiedades de las curvas esfuerzo-deformación de aceros de refuerzo que comúnmente se emplean en México, se encontró que aún cuando algunos aceros de refuerzos cumplen con las especificaciones de las Normas Mexicanas para estos, la sobreresistencia en estos aceros lleva a incrementos importantes en la resistencia del elemento estructural, especialmente en vigas y a disminuciones importantes en la ductilidad de la estructura
FORMAL EDUCATION LEAVES WOMEN FROM THE TRIBUTES OF CHILDHOODS IN SOUTH KALIMANTAN
Authors: Kartika Norma Yuni
Published: May 2018

Education is "upstream" in the development of quality human beings, both provincial scale such as in South Kalimantan and national scale that is Indonesia. Education has a "Downstream" many branches with positive benefits for men and women. For that purpose the formulation of this paper is how the role of formal education in releasing women from child marriage traps in South Kalimantan in 2012. Data Indonesia Demographic and Health Survey (SDKI) Year 2012 became a secondary data source in this study, using the method of analysis secondary data. In accordance with the purpose of this study, this study uses the question module of married women aged 15-49 years in the Province of South Kalimantan 2012. The analysis is done by simple statistics in the form of cross-tabs displayed in the form of tables and bar charts. In order for the discussion to be more comprehensive, analysis is also conducted to find out the independent variable is the level of formal education of women who most contribute in releasing women from the trap of child marriage. The statistic test used is linear logistic regression with the first dummy mating age variable that is the first marriage age under 18 years and above 18 years, using SPSS software aid. Based on the results of the research is known that from the three levels of formal education, formal education at the level of primary education has the greatest contribution seen from the coefficient of determination that women who do not complete the level of primary education or equivalent to junior high education / equal 23.6 percent lead to marriage of children. This means that the higher level of formal education that can be achieved by women in South Kalimantan Province in 2012, the more women are able to escape from the marriage of children. 

Keywords: formal education, women, traps, child marriage