bluuebunny/crossref_metadata_2025_split huggingface dataset:
El ocio de los jóvenes en España. Una aproximación a sus prácticas y barreras
Authors: Caballo Villar María Belén , Varela Crespo Laura , Nájera Martínez Eusebio Manuel 
Published: November 2017

El artículo toma como referencia el proyecto “De los tiempos educativos a los tiempos sociales: la construcción cotidiana de la condición juvenil en una sociedad de redes. Problemáticas y alternativas pedagógico-sociales” (EDU2012-39080-C07). Presenta los resultados referidos a la utilización del tiempo libre derivados de un cuestionario aplicado en el curso 2015-2016 a una muestra de 2694 estudiantes de Educación Secundaria Postobligatoria. Se concluye el predominio de prácticas asociadas a las dimensiones lúdica, cultural y festiva del ocio, siendo residual la dimensión solidaria. Destacan las barreras temporales y el déficit de alfabetización en ocio.
Performance of Loaded Thermal Storage Unit with a Commercial Phase Change Materials based on Energy and Exergy Analysis
Authors: Olimat Abdullah Nasrallh , Awad Ahmad S , AL-Gathain Faisal M. , Shaban Nabil Abo 
Published: November 2017

This work presents an energy/exergy analysis to investige performance of thermal storage unit which loaded with a commercial phase change material (Plus ICE H190). The influence of fluid parameters on the energy/exergy effectiveness was examined. The temporal changes of the energy and exergy rate and performace of the storage unit are obtained in the results. Latent heat principle is considered an efficient method to gain a higher effectiveness of system from an energy and exergy aspects. The fluid mass flow rate during charging and discharging periods were 2.50 kg/min and 1.26 kg/min, respectively. The results showed a significant increase of thermal resistance on the thermal storage unit performance. Fluid and phase change material show significant temperature difference on the rate of energy/exergy quantites and the time of melting or soldification. Ther results indicated that the average rate of energy and exergy were 1.3 kW and 0.54 kW, respectively. Wheras, energy and exergy average rate during discarging periods were 1.1 kW and 0.31 kW, respectively. Also, the global rate during the experimetal periods were about 84% and 54%, respectively.Article History: Received July 6th 2017; Received in revised form September 15th 2017; Accepted 25th Sept 2017; Available onlineHow to Cite This Article: Olimat, A.N., Awad, A.S., Al-Gathain, F.M., and Shaban, N.A.. (2017) Performance of Loaded Thermal Storage Unit With A Commercial Phase Change Materials Based on Energy and Exergy Analysis. International Journal of Renewable Energy Development, 6(3),283-290.https://doi.org/10.14710/ijred.6.3.283-290
Pengaruh Komposisi Bahan Bakar Metanol-Bensin Terhadap Torsi Dan Daya Sebuah Mobil Penumpang Sistem Injeksi Elektronik 1200 CC
Authors: Sinaga Nazaruddin , Rifal Mohamad 
Published: November 2017

Pada saat ini jumlah kendaraan bermotor di Indonesia sudah sangat banyak sehingga menimbulkan masalah dalam pengadaan bahan bakar, karena sebagian harus dibeli dari luar negeri. Di samping itu juga terdapat kecenderungan dan tekanan internasional untuk menggunakan bahan bakar yang lebih ramah lingkungan dan dapat diperbaharui. Penggunaan metanol sebagai bahan bakar alternatif memiliki prospek yang baik bila dapat direalisasikan di Indonesia, karena cukup banyak bahan mentah dan bahan baku yang tersedia di dalam negeri. Namun demikian hingga saat ini penggunaannya belum direkomendasikan oleh banyak pihak, karena masih terdapat keraguan akan dampak negatif yang ditimbulkannya terhadap kinerja mesin, gas buang yang dihasilkan, kerusakan komponen mesin dan sebagainya. Oleh karena itu perlu dilakukan berbagai riset untuk mempelajari efek penggunaan metanol ini serta upaya-upaya yang perlu dilakukan untuk mengatasi dampak negatif tersebut. Penelitian ini bertujuan untuk mempelajari pengaruh variasi komposisi campuran bensin-metanol terhadap kinerja sebuah kendaraan penumpang berbahan bakar bensin yang dilengkapi dengan sistem injeksi bahan bakar elektronik. Parameter yang diamati adalah nilai torsi dan daya yang dihasilkan mesin kendaraan pada komposisi metanol 0% (M0), 10% (M10), 15% (M15), 30% (M30), 50% (M50) dan 65% (M65). Penelitian ini dilakukan di Laboratorium Efisiensi dan Konservasi Energi, Departemen Teknik Mesin, Fakultas Teknik Universitas Diponegoro dengan menggunakan mobil Mitsubishi Mirage A/T 1200 CC tahun pembuatan 2015. Untuk memperbaiki sifat bahan bakar ditambahkan larutan aditif 1,2 Propylene glycol dengan konsentrasi 0,7%. Adapun pengaturan injeksi bahan bakar dilakukan dengan menambahkan Methanol Injection Control. Pengukuran torsi dan daya dilakukan di atas dinamometer sasis dengan menggunakan engine scanner. Bensin yang digunakan adalah jenis Premium dengan nilai RON 88 dan metanol yang digunakan memiliki konsentrasi 75%. Dari penelitian ini secara umum didapatkan bahwa variasi komposisi metanol tidak memberikan pengaruh yang besar terhadap kurva torsi dan daya, jika dibandingkan dengan mesin berbahan bakar bensin murni (M0). Hal ini disebabkan karena kondisi operasi mesin, yaitu waktu penyalaan, laju aliran udara, rasio udara bahan-bakar, tidak mengalami perubahan yang berarti. Oleh karena itu melalui penelitian ini dapat direkomendasikan bahwa penggunaan metanol sebagai bahan bakar alternatif pada kendaraan berbahan bakar bensin memiliki prospek untuk diterapkan. Namun demikian perlu dilakukan beberapa penelitian lanjut untuk mengetahui dampaknya terhadap kerusakan komponen mesin, dan pengaturan injeksi maupun penyalaan yang memberikan kinerja mesin yang lebih baik.
Overview of ribosomal and non-ribosomal antimicrobial peptides produced by Gram positive bacteria
Authors: Tajbakhsh M. , Karimi A. , Fallah F. , Akhavan M. M. 
Published: November 2017

The increasing incidence of antimicrobial resistance bacterial infection and decreasing effectiveness of conventional antibiotics to treatment have caused serious problems worldwide. The demand for new generationantibiotics to combat microbial pathogens is imperative. Cationic antimicrobial peptides (AMPs) with different sources from prokaryotic to complex eukaryotic organisms, with variable length, amino acid composition and secondary structure, have been consideredduring the past decades. The advantages of large number of AMPs are related to broad spectrum and morphogenetic activities, low resistance rate among microorganismswithout side effect on human cells, rapid killing of bacteria via membrane damage and intracellular targets,and their critical roles in anti-inï¬‚ammatory. Ribosomal synthesized peptides of Gram positive bacteria with various post translational modificationsrepresent extended types of antimicrobial peptide with different structural and functional diversity. These types of peptides have been considered as new therapeutic agents for pharmaceutical development .In addition, non- ribosomal synthesized peptides are a wide range of peptides , an extremely extensive range of biological activities and pharmacological properties that are not synthesized by ribosomes, show interesting biological properties ranging from antibiotic to bio surfactants. This review focused on genetics, mechanism of action and modifications, resistance mode of Gram positive bacteria to AMPs and the biotechnological application of ribosomally and non-ribosomally synthesized peptides derived from Gram positive bacteria.
Endothelial nitric oxide synthase 27VNTR (4b/4a) gene polymorphism and the risk of diabetic microvascular complications in Chinese populations
Authors: Zhang X. , Yang Z. , Chen X. 
Published: November 2017

To access the association of endothelial nitric oxide synthase (eNOS) gene 27VNTR (4b/4a) polymorphism with diabetic microvascular complications (DMI) susceptibility in Chinese populations. Data were retrieved in a systematic manner on PubMed database, ISI Web of Knowledge, the Cochrane Library, Chinese National Knowledge Infrastructure, and Wanfang, as well as manual searching of the references of the identified articles. Odds ratio (OR) and 95% confidence interval were used to evaluate the strength of associations. Potential sources of heterogeneity and publication bias were explored. Twelve published articles with thirteen outcomes including 1484 DMI patients and 1225 diabetic controls were included in the meta-analysis. The results showed no evidence for significant association of 27VNTR (4b/4a) polymorphism with DMI risk in dominant model (OR=1.36, 95% CI=0.90–2.06, P=0.15), and similar results were obtained in the allelic, additive and the recessive models (Pï¹¥0.05). Our meta-analysis suggests that eNOS gene 27VNTR (4b/4a) polymorphism might not be a risk factor for DMI in Chinese populations.
Application of 3D DIC Displacement Field Measurement in Residual Stress Calculations
Authors: Brynk T. 
Published: November 2017

Abstract
The knowledge of residual stress distribution is of great importance from the viewpoint of both, industrial and basal research. The most commonly utilized method of residual stress determination is based on strain measurements near the drilled holes of known geometry made by means of tensometric rosettes. An alternative to tensometers way of strain measurement is Digital Image Correlation (DIC). This optical method utilizes digital images registered during observed object deformation and delivers results in the form of displacement field maps consisting of hundreds or thousands of data points. Therefore, it is possible to deliver much more data in comparison to rosettes (only 3 or 6 tensometers, usually) and use them in the inverse method numeric procedure for residual stress calculations. In the paper the experimental stand consisting of micro driller and stereo imaging system for 3D DIC measurement and its application to residual stress estimation in prestrained steel samples are presented followed by obtained results discussion.
Directions of Growth, Improvement and Prospects for Efficiency of the Productivity of Sheep Breeds Tigaie in the Context of Zootechnical Bioeconomy
Authors: Udrea Lavinia 
Published: November 2017

Abstract
Nowadays, tigaie breed represents almost 26 percents of tha total sheep group in our country, being grown on the hill, plateau and depression areas, with atmosphero=ic precipitation of 650-800 mm, and in limited number in some submontane areas. The proportion of the Tigaie breed will be in the future of about 24% of the total herd. Due to its exceptional resistance and superior combining capabilities, the Tigaie breed will be a biological source of industrial cross-breeding and improvement, as well as the creation of new types, for fine-meat-milk wool, such as Spanca genetically stabilized or semifine-wool, as well as semi-wool milk. In order the breed to be properly harvested in the shown directions, it is necessary to keep valuable cores in the pure breed, subject to an appropriate selection and propagation program. The economic efficiency of animal production is largely determined by the results obtained by forage crops, the low cost of feed, contributing to the increase in the economic efficiency of livestock production.
What Can we Learn from ‘Postmodern’ Critiques of Education for Autonomy?
Authors: Culp Julian 
Published: November 2017

Abstract
Lyotard defines being postmodern as an ‘incredulity toward metanarratives’. Such incredulity includes, in particular, skepticism vis-à-vis Enlightenment ideals like autonomy. Motivated by such skepticism, several educational scholars put into question education for autonomy as it is practiced in the formal settings of national school systems. More specifically, they criticize that practices of autonomy education can have certain normalizing and ideological effects that undermine the aim of creating autonomous subjects. This article examines these critiques of education for autonomy and argues that they are best understood as calls for reforming educational practices, and not as outright rejections of education for autonomy. Thus, since the allegedly ‘postmodern’ critiques of autonomy education cannot be plausibly understood as radical ruptures with Enlightenment ideals, the article concludes that these critiques represent (merely) constructive self-critical reflections on what Habermas dubbed the ‘unfinished project of modernity’.
Democratic Rights and the Choice of Economic Systems
Authors: Platz Jeppe von 
Published: November 2017

Abstract
Holt argues that Rawls’s first principle of justice requires democratic control of the economy and that property owning democracy fails to satisfy this requirement; only liberal socialism is fully democratic. However, the notion of democratic control is ambiguous, and Holt has to choose between the weaker notion of democratic control that Rawls is committed to and the stronger notion that property owning democracy fails to satisfy. It may be that there is a tension between capitalism and democracy, so that only liberal socialism can be fully democratic, but if so,we should reject, rather than argue from, the theory of democracy we find in justice as fairness.
Sensitivity enhancement of a folded beam MEMS capacitive accelerometer-based microphone for fully implantable hearing application
Authors: Dwivedi Apoorva , Khanna Gargi 
Published: November 2017

Abstract
The present work attempts to enhance the sensitivity of a folded beam microelectromechanical systems (MEMS) capacitive accelerometer by optimising the device geometry. The accelerometer is intended to serve as a microphone in the fully implantable hearing application which can be surgically implanted in the middle ear bone structure. For the efficient design of the accelerometer as a fully implantable biomedical device, the design parameters such as size, weight and resonant frequency have been considered. The geometrical parameters are varied to obtain the optimum sensitivity considering the design constraints and the stability of the structure. The optimised design is simulated and verified using COMSOL MULTIPHYSICS 4.2. The stability of the device is ensured using eigenfrequency analysis. Optimised results of the device geometry are presented and discussed. The accelerometer has a sensing area of 1 mm2 and attains a nominal capacitance of 5.3 pF and an optimum sensitivity of 6.89 fF.
Spatial differentiation of urban population change in Russia
Authors: Wiśniewski Rafał 
Published: November 2017

Abstract
The demographic transformations in Russia have led to changes in the country’s urban population (population of cities and urban-type settlements), which declined by 3.3% in the years 1989-2010. However, the population of cities as such increased over the same period by 1.5%, mainly as a result of the huge growth in the population of Moscow. Population changes in Russian cities vary depending on the size of the city. The greatest change was observed, above all, in small peripheral cities, which lost as much as half of their population. However, even more alarming are the trends observed in the smaller cities of the historical heart of Russia, which fall within the catchment area of Moscow (and its aglomeration) and cities of supraregional importance. Such cities have been depopulating as fast as Siberian cities.
New biomimetic approach to the aircraft wing structural design based on aeroelastic analysis
Authors: Gawel D. , Nowak M. , Hausa H. , Roszak R. 
Published: November 2017

Abstract
This paper presents a new biomimetic approach to the structural design. For the purpose of aircraft wing design the numerical environment combining simultaneous structural size, shape, and topology optimization based on aeroelastic analysis was developed. For the design of aircraft elements the optimization process must be treated as a multi-load case task, because during the fluid structure interaction analysis each step represents a different structural load case. Also, considering different angles of attack, during the CFD computation each result is considered. The method-specific features (such as domain independence, functional configurations during the process of optimization, and multiple load case solution implemented in the optimization scenario) enable the optimal structural form. To illustrate the algorithm functionality, the problem of determining the optimal internal wing structure was presented. The optimal internal wing structure resulting from aeroelastic computation with different angles of attack has been presented.
The Regression Analysis of Individual Financial Performance: Evidence from Croatia
Authors: Bahovec Vlasta , Barbić Dajana , Palić Irena 
Published: November 2017

Abstract

Background: A large body of empirical literature indicates that gender and financial literacy are significant determinants of individual financial performance.

Objectives: The purpose of this paper is to recognize the impact of the variable financial literacy and the variable gender on the variation of the financial performance using the regression analysis.

Methods/Approach: The survey was conducted using the systematically chosen random sample of Croatian financial consumers. The cross section linear regression model is estimated in order to assess how gender as a dummy variable and financial literacy as an ordinal categorical variable impact financial performance.

Results: The results indicate that the average value of financial performance for men is higher than the average value of financial performance for women at the same financial literacy level. Furthermore, a higher level of financially literacy is related to a higher level of financial performance.

Conclusions: Both gender and financial literacy have a statistically significant impact on individual financial performance. Increasing financial literacy and understanding gender differences in terms of financial literacy and financial well-being should be of interest to financial educators in their struggles to improve financial situation of citizens and for educators to create financial education programs intended for men and women.
Are Publicly Available Online Businesses Lists Appropriate to be used as Sampling Frames in Croatian Business Surveys?
Authors: Žmuk Berislav 
Published: November 2017

Abstract

Background: In order to conduct a probability business survey, a high quality sampling frame of enterprises is needed.

Objectives: The goal of the paper is to investigate publicly available online businesses lists which can be used as sampling frames in business surveys in Croatia and to find out whether they have a satisfactory quality level.

Methods/Approach: Publicly available businesses lists in Croatia are examined and their appropriateness for use in different modes of data collection as business sampling frames is inspected. The advantages and disadvantages of businesses lists are discussed and compared.

Results: Overall 11 online businesses lists are considered as business sampling frames in the paper. The comparison analysis has shown that businesses lists from the government institutions are the best choice when business surveys are conducted face-to-face, by mail and/or by telephone. However, none of the observed businesses lists is good enough to be used in a business web survey.

Conclusions: The research has shown that the publicly available online businesses lists are of a satisfactory level of quality only if traditional data collection modes are used. Unfortunately, they are not appropriate in business web surveys. Therefore, the development of a business register in Croatia is a prerequisite for conducting probability and representative business web surveys in the future.
Jacob Haury, Karl Krumbacher, Otto Adamek und Hermann Braun
Authors: Brendel Raphael 
Published: November 2017

AbstractThree notes on the letters of Jakob Haury to Karl Krumbacher edited by Peter Schreiner: 1. An identification of the book Krumbacher offered to Haury for review. 2. An identification of Braun’s note on textual criticism against which Haury argued. 3. A correction of a misleading typo in Schreiner’s edition.
Encore sur l’authenticité de l’Hexaéméron d’Anastase le Sinaïte
Authors: Zaganas Dimitrios 
Published: November 2017

AbstractThe article re-examines the thorny question of the authenticity of Anastasius Sinaita’s Hexaemeron, which has been recently debated again by K.- H. Uthemann. A critical discussion of old and new arguments against the authenticity permits, on one hand, to reject the allegedly late dating and the inaccurate title appended to the Hexaemeron, and on the other hand, to express serious doubts about the cited theological differences between the Hexaemeron and the two Homilies on the making of man which are securely attributed to Anastasius. Moreover, a reassessment of the undeniable connection between the aforementioned texts provides strong evidence in support of the Anastasian authorship of the Hexaemeron.
The suppression of space charge accumulation in CB/LDPE nanocomposites and its association with molecule relaxation
Authors: Yan Zhiyu , Zhao Hong , Han Baozhong , Yang Jiaming , Chen Junqi 
Published: November 2017

AbstractSpace charge accumulation within insulating material poses a threat to the reliability in the operation of DC power cables. To investigate the influence of carbon black (CB) on the space charge accumulation of low density polyethylene (LDPE), both conductive carbon black (C-CB) and insulating carbon black (I-CB) were employed as filler particles. The space charge distributions of LDPE and CB/LDPE nanocomposites were obtained by the pulsed electro-acoustic (PEA) method. Additionally, dynamic mechanical analysis (DMA) and thermally stimulated current (TSC) spectroscopy were applied to explore the mechanism of improving space charge performance. Both the C-CB/LDPE and I-CB/LDPE nanocomposites can effectively suppress space charge accumulation. It was concluded that the improvement in space charge characteristics of CB/LDPE nanocomposites was attributable to the interaction between the CB particles and the LDPE, which reduces the number of defects formed from molecules participating in α relaxation and decreases the density of traps within the LDPE.
Foreign Language Education in the 21stEuropean Context: Exploring New Directions in Intercultural and Plurilingual Approaches Using Anzaldúa’s Border Epistemology
Authors: Lobo Patrícia 
Published: November 2017

AbstractThis article considers the reformulation of foreign language classes as spaces of cultural politics, dynamic social activism and holistic education, in order to enable schools, teachers and students to set the foundation for a more inclusive society. It starts by recognizing some of the challenges of the 21stcentury European context, addressing the need to explore new directions in the intercultural and plurilingual approaches in Foreign Language Education. Using Cultural Studies as a starting point, it will be argued that Gloria Anzaldúa's cultural, feminist, queer and linguistic concepts, with a focus on the crossing of different borders, the forging of relational strategies between groups, and a holistic view of the world, can contribute to current debates on interculturalism and plurilingualism, providing an alternative framework for educational practices that empower students from diverse backgrounds with self-knowledge and tolerance towards alterity.