bluuebunny/crossref_metadata_2025 huggingface dataset:
Proposta de matriz para a análise da publicidade na web
Authors: Ghisleni Taís Steffenello , Barichello Eugenia Maria Mariano da Rocha
Published: December 2017

Este artigo apresenta uma matriz metodológica para análise de anúncios publicitários em websites, e a sua construção está embasada nas teses de Marshall McLuhan e Neil Postman, sob a vertente ecológica, e também nas propostas de Pinho, Sebastião, McMillan, Fernandes e Duarte. A matriz foi construída utilizando a cartografia como estratégia metodológica, pois permite acompanhar os movimentos de transformação da paisagem e seus resultados evidenciam que as possibilidades oferecidas pela tecnologia são responsáveis por mudanças nas práticas publicitárias, considerando-se que a cada novo aspecto inserido, novas experiências foram proporcionadas e a publicidade foi construindo o seu espaço na web.
Breaking New Ground In Human Rights Protection: Proposing An Inverted Triangular Approach Through Group-Based Enforcement In South East Asia
Authors: Ismail Shahrul Mizan
Published: December 2017

The present problem of human rights enforcement reflects the old dilemma between centralism at the international level and local governance at the domestic level. Centralist solutions carry the expectation of a more homogeneous, effective and uniform method of operation. But this so-called‘universal’enforcement model is often seen as being too weak and incoherent for effective actions.Although the alleged universal character of the enforcement of human rights may portray an impressive international regime, local modes of problem solving are in reality more efficient since they are based on a better understanding of the specific circumstances and take into account of local peculiarities, cultural values and other similar factors. The latter is the missing elements in the overall international human rights enterprise. The rapid promotion and education of the global community on the concept of human rights has opened many wider possibilities for group based enforcement to be an efficient alternative. Reinforcing the same line of argumentation, this paper proposes an inverted model of enforcement whereby iinternational human rights law could act as the general framework that establishes generally agreed prin­ciples and norms that transcend strict national concerns, while group based mechanisms will work on enforcing those norms in their specific manifestations within the respective groups.
Factores implicados para realizar o no realizar tesis en estudiantes de psicología
Authors: Aiquipa Jesús J. , Ramos Cinthia M. , Curay Rosmery , Guizado Leidy L.
Published: December 2017

A pesar de la necesidad de investigaciones científicas en Psicología para dar respuesta a los diferentes problemas psicosociales del país (violencia familiar y corrupción, por ejemplo), los estudios en esta área son aún insuficientes. Una de las formas de incentivar las investigaciones es a través de la realización de tesis. Sin embargo, muchos estudiantes optan por otro tipo de trabajos para tal fin. El objetivo del estudio es identificar, describir y explicar aquellos factores que influyen en la decisión de realizar o no realizar tesis para obtener el título profesional en estudiantes de pregrado de la carrera de Psicología. Se empleó una metodología cualitativa y el diseño Teoría Fundamentada. Se realizaron 7 entrevistas individuales y 2 grupos focales a un total de 28 estudiantes universitarios (20 mujeres y 8 varones), residentes en la ciudad de Lima, de 2 universidades nacionales y 3 particulares, que cursaban los últimos ciclos de la carrera de Psicología. Los resultados sugieren que existen factores psicológicos, circunstanciales, familiares, relacionados a la universidad, sociales y culturales cuya compleja interacción influye en los procesos psicológicos del estudiante para tomar la decisión de realizar o no realizar una tesis, representando el sistema de creencias del estudiante respecto de sí mismo y en relación con la actividad de investigación un factor psicológico central. 
The Spermine Phosphate-Bound Cyclooctaoxygen Sodium Epigenetic Shell of Euchromatin DNA Is Destroyed by the Epigenetic Poison Glyphosate
Authors: Kesel Andreas J.
Published: December 2017

Oxygen exists in two gaseous and six solid allotropic modifications. An additional allotropic modification of oxygen, the cyclooctaoxygen, was predicted to exist in 1990. The first synthesis and characterization of cyclooctaoxygen as its sodium crown complex, isolated in the form of three cytosine nucleoside hydrochloride complexes, was reported in 2016. Cyclooctaoxygen sodium was synthesized from atmospheric oxygen, or catalase effect-generated oxygen, under catalysis of cytosine nucleosides and either ninhydrin or eukaryotic low-molecular weight RNA. The cationic cyclooctaoxygen sodium complex was shown to bind RNA and DNA, to associate with single-stranded DNA and spermine phosphate, and to be essentially non-toxic to cultured mammalian cells at 0.1–1.0 mM concentration. We postulated that cyclooctaoxygen is formed in most eukaryotic cells from dihydrogen peroxide in a catalase reaction catalysed by cytidine and RNA. A molecular biological model was deduced for a first epigenetic shell of eukaryotic euchromatin. This model incorporates an epigenetic explanation for the interactions of the essential micronutrient selenium (as selenite) with eukaryotic euchromatin. The sperminium phosphate/cyclooctaoxygen sodium complex is calculated to cover the actively transcribed regions (2.6%) of bovine lymphocyte interphase genome. Cyclooctaoxygen seems to be naturally absent in hypoxia-induced highly condensed chromatin, taken as a model for eukaryotic metaphase/anaphase/early telophase mitotic chromatin. We hence propose that the cyclooctaoxygen sodium-bridged spermine phosphate and selenite coverage serves as an epigenetic shell of actively transcribed gene regions in eukaryotic ‘open’ euchromatin DNA. The total herbicide glyphosate (ROUNDUP) and its metabolite (aminomethyl)phosphonic acid (AMPA) are proved to represent ‘epigenetic poisons’, since they both selectively destroy the cyclooctaoxygen sodium complex. This definition is of reason, since the destruction of cyclooctaoxygen is sufficient to bring the protection shield of human euchromatin into collateral epigenetic collapse.
Fault Diagnosis of Induction Machines in Transient Regime Using Current Sensors with an Optimized Slepian Window
Authors: Burriel-Valencia Jordi , Puche-Panadero Ruben , Martinez-Roman Javier , Sapena-Baño Angel , Pineda-Sanchez Manuel
Published: December 2017

The aim of this paper is to introduce a new methodology for the fault diagnosis of induction machines working in transient regime, when time-frequency analysis tools are used. The proposed method relies on the use of the optimized Slepian window for performing the short time Fourier transform (STFT) of the stator current signal. It is shown that for a given sequence length of finite duration the Slepian window has the maximum concentration of energy, greater than can be reached with a gated Gaussian window, which is usually used as analysis window. In this paper the use and optimization of the Slepian window for fault diagnosis of induction machines is theoretically introduced and experimentally validated through the test of a 3.15 MW induction motor with broken bars during the start-up transient. The theoretical analysis and the experimental results show that the use of the Slepian window can highlight the fault components in the current's spectrogram with a significant reduction of the required computational resources.
A grey relational analysis based approach to the evaluation of Brazilian postgraduate programs in master of business administration
Authors: A. A. Garcia Pauli , A. de C. Duim Fernanda
Published: December 2017

The education development in Brazil has been influenced by government policies, especially those directed at higher learning. To judge the effectiveness of these policies it is necessary to evaluate the quality of the teaching offered, particularly with respect to public education. In this context, there have been many initiatives for new postgraduate programs. To be accredited, these programs must be approved by the Coordination for the Improvement of Higher Education Personnel (CAPES), part of the Ministry of Education. Among the many criteria considered by CAPES, the academic production is the most important. Many works proposing approaches to classify college programs based on faculty bibliographical output have been published; among these, those based on data envelopment analysis stand out. The present work uses grey relational analysis based approach. Another difference is that the information is considered on a masterâs program not yet accredited, that is, one that still needs to be evaluated by CAPES. A classification is established for this program in relation to the ones already accredited along with a way to identify the improvement points and an improvement factor for each attribute considered. The results indicate that the approach is efficient in relation to that based on traditional data envelopment analysis and suggest areas for future research in this area.
Effect of Multispecies Cover Crop Mixture on Soil Properties and Crop Yield
Authors: Chu Mingwei , Jagadamma Sindhu , Walker Forbes R. , Eash Neal S. , Buschermohle Michael J. , Duncan Lori A.
Published: December 2017

Core Ideas

After 3 yr, soybean yield was higher from multispecies than from single‐ and double‐species cover cropping.

Multispecies cover cropping had higher soil water and inorganic N content than less‐diverse treatments.

Soil organic C was unaffected by cover crop species diversity.

Several years of cover cropping are needed to achieve ecosystem benefits.

Multispecies cover cropping has become popular in recent years because of the multiple ecosystem benefits compared with single‐ or double‐ species cover cropping. However, scientific studies on the effects of multispecies cover cropping—especially in the southern United States—are limited. A field study was initiated in 2013 at the University of Tennessee's Research and Education Center in Milan, TN, to assess the agronomic and soil responses from single‐, double‐, and multispecies cover cropping in corn (Zea mays L.)–soybean [Glycine max (L.) Merr.] systems. After 3 yr, we found that a multispecies mixture of legumes, grasses, and Brassica spp. significantly increased soybean yield, gravimetric soil water content, and soil inorganic nitrogen as compared to the less‐diverse treatments and a no‐cover control. However, after 3 yr, cover cropping did not increase soil organic carbon. Although multispecies cover cropping exhibited a positive effect on yield and some soil properties after 3 yr, we plan to continue collecting multiple years of data from this field trial.
Functional Predictions of Microbial Communities in Soil as Affected by Long‐term Tillage Practices
Authors: Hariharan Janani , Sengupta Aditi , Grewal Parwinder , Dick Warren A.
Published: December 2017

Core Ideas

Microbial function is important but difficult to assess in soil.

An omics‐driven tool, PICRUSt, was used to characterize functions of soil microbial communities.

No‐tillage compared with plow tillage was functionally enriched for most nutrient cycles.

Many other functions integral to soil health can be explored by the PICRUSt omics approach.

Soil microbial communities affect the soil's biological, chemical, and physical properties, but there is still a knowledge gap regarding the long‐term impact of tillage practices on soil microbial dynamics. Additionally, the accurate identification of belowground microbial functions is a topic of active interest. In this study, microbial community profiles and functions in soil from a 50‐plus‐year‐old experiment in Ohio, representing one of the world's longest running comparisons of a plow‐tillage system and a continuous no‐tillage system, were compared. The Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) algorithm was used to predict associated functional traits from 16S rRNA gene sequences. Analysis of the sequences revealed a large number of unidentified operational taxonomic units (67%), which is consistent with expectations of the soil ecosystem. Next, we investigated gene and enzyme predictions for nitrogen, sulfur, and methane metabolism and hydrocarbon degradation in soil. Results indicated that no‐tillage was functionally enriched for most nutrient cycles. This study has allowed us to predict distinct functional profiles as a result of legacy land uses. It serves as an example of improved analysis of the functional differences in soil managed by long‐term tillage versus no‐till.
Simulated Soil Organic Carbon Response to Tillage, Yield, and Climate Change in the Southeastern Coastal Plains
Authors: Nash P. R. , Gollany H. T. , Novak J. M. , Bauer P. J. , Hunt P. G. , Karlen D. L.
Published: December 2017

Intensive tillage, low‐residue crops, and a warm, humid climate have contributed to soil organic carbon (SOC) loss in the southeastern Coastal Plains region. Conservation (CnT) tillage and winter cover cropping are current management practices to rebuild SOC; however, there is sparse long‐term field data showing how these management practices perform under variable climate conditions. The objectives of this study were to use CQESTR, a process‐based C model, to simulate SOC in the top 15 cm of a loamy sand soil (fine‐loamy, kaolinitic, thermic Typic Kandiudult) under conventional (CvT) or CnT tillage to elucidate the impact of projected climate change and crop yields on SOC relative to management and recommend the best agriculture management to increase SOC. Conservation tillage was predicted to increase SOC by 0.10 to 0.64 Mg C ha−1 for six of eight crop rotations compared with CvT by 2033. The addition of a winter crop [rye (Secale cereale L.) or winter wheat (Triticum aestivum L.)] to a corn (Zea mays L.)–cotton (Gossypium hirsutum L.) or corn–soybean [Glycine max (L.) Merr.] rotation increased SOC by 1.47 to 2.55 Mg C ha−1. A continued increase in crop yields following historical trends could increase SOC by 0.28 Mg C ha−1, whereas climate change is unlikely to have a significant impact on SOC except in the corn–cotton or corn–soybean rotations where SOC decreased up to 0.15 Mg C ha−1 by 2033. The adoption of CnT and cover crop management with high‐residue‐producing corn will likely increase SOC accretion in loamy sand soils. Simulation results indicate that soil C saturation may be reached in high‐residue rotations, and increasing SOC deeper in the soil profile will be required for long‐term SOC accretion beyond 2030.

Core Ideas

High‐residue crop rotation in conservation tillage maximized SOC accumulation.

Cover crop and conservation tillage management would likely optimize SOC accretion.

Anticipated climate change was predicted to have a minimal impact on SOC by 2033.

Sorghum was not a viable option to replace corn in rotation for SOC accretion.

Alternative management was required for deep SOC accretion beyond 2033.
A Simple Model To Estimate Brunauer–Emmett–Teller‐N2 Specific Surface Area of Contrasting Soils in Brazil
Authors: Zinn Yuri L. , Vilela Emerson F. , Araujo Marla A. , Lal Rattan
Published: December 2017

Core Ideas

We measured SSA of eight tropical soils formed from eight rocks.

Soil SSA varied from 2.8 to 45 m2 g−1 and was most affected by clay contents.

Soil SSA for the 0‐ to 1‐m depth could be modeled by regression using clay and organic C%.

The model was further improved using amorphous Al/Fe oxide data.

Specific surface area (SSA) is a key property of soils that affects nearly all soil ecological functions that involve aggregation and sorption. However, data on soil SSA are seldom reported in the literature due to time‐consuming analysis or equipment constraints in most soil laboratories. Here, we measured external SSA by means of N2 sorption with the Brunauer–Emmett–Teller isotherm using fine earth samples from eight tropical soils of contrasting texture and mineralogy collected at depths of 0 to 5, 30 to 40, and 90 to 100 cm. With these and soil particle‐size distribution and soil organic carbon (SOC) data, we developed a multiple linear regression for SSA description. Soil SSA varied from 2.85 to 45.37 m2 g–1, generally increasing with an increase in depth for the same soil. The factor most strongly correlated with SSA was clay content, and the weakest correlations were those with SOC concentration. The best multiple regression obtained was SSA (m2 g–1 soil) = 0.455(clay %) – 1.641(SOC %) (P < 0.01; n = 72). This equation explained well the observed values (r2 = 0.84), including both ends of the measured range. Furthermore, the equation had the advantages of simplicity, using only textural and SOC data of routine determination, and validity for any depth within a 0‐ to 1‐m depth interval. When oxalate‐extractable Fe and especially Al data were included as inputs, the prediction power of the model increased to r2 = 0.92. However, the use of equations proposed here to predict SSA for soils of other regions must be accompanied by proper validation due to unpredictable variations in soil organic matter composition and mineral crystallinity, among other factors.
Phosphorus Dynamics Near Bald Cypress Roots in a Restored Wetland
Authors: Moorberg Colby J. , Vepraskas Michael J. , Niewhoener Christopher P.
Published: December 2017

Core Ideas

Previous tree exposure to saturated conditions limited root death after ponding.

Root growth and death had no apparent effect on concentrations of Fe2+, DOC, or DTP.

Concentrations of Fe2+ were related to water table levels and redox status.

Phosphorus concentrations were controlled by iron reduction and oxidation.

Phosphorus (P) dissolution occurs commonly in wetland soils restored from agricultural land. Associated with P release are high concentrations of dissolved organic carbon (DOC) and Fe2+. This field study evaluated the effect of a fluctuating water table on the root dynamics of bald cypress (Taxodium distichum L. Rich.) to determine whether root death created soil reduction microsites, potentially contributing to P dissolution. The study site is a restored Carolina bay wetland with organic soils. Root growth and death were monitored on 16 6‐yr‐old bald cypress using minirhizotrons. Root dynamics, water table levels, and soil porewater chemistry and redox potential in the root zone were monitored for 2 yr. Soil solution samples were analyzed for Fe2+, pH, DOC, and P. High rates of root growth occurred during dry conditions, whereas root death occurred during sustained periods of saturation, particularly within 20 cm of the surface. Cyclic changes in concentrations of Fe2+, DOC, and dissolved total P (DTP) were related to water table position but not to changes in root numbers. After sustained periods of saturated conditions, redox potential decreased to 0 mV, Fe2+ increased to 1.75 mg Fe2+ L–1, and DOC increased to 350 mg L–1, resulting in peak DTP concentrations of 750 μg L–1, compared with 100 μg L–1 during dry periods. This study showed that in these high‐C soils (∼20% organic C) rooting dynamics had minimal impact on changes in P concentrations and that P dissolution was largely controlled by Fe reduction processes occurring within the C‐rich soil matrix.
The equilibrium model of demand and supply at the Ukrainian Interbank Foreign Exchange Market: disclosure of problematic aspects
Authors: Kuznyetsova Anzhela , Misiats Nataliia , Klishchuk Olha
Published: December 2017

This article is devoted to building of the equilibrium model between demand and supply on foreign currency at the Ukrainian Interbank Foreign Exchange Market (non-cash share). The authors discussed that appeared trade-offs are a product of established current foreign arrangement, administrative measures provided by the National Bank of Ukraine and range of fundamental variables, which are traditionally significant for Ukrainian economy. By means of FAVAR modeling model of demand and supply equlibrium on non-cash foreign currency was built on empirical data of Ukrainian Interbank Foreign Exchange Market, splitted into the periods, proposed by the authors. Next, it was discussed disconnection properties in the model and shown log-linearized specification of the one. The efficiency of fulfillment hypothesis on decointegrating of the fundamental variables' time series has been provided in form of critical statistics values. Also, instrument of GAP analysis of deviation from equilibrium state was proposed and the further analysis of a regulation style of monetary authority was provided. In conclusion, it was summarized that increased share of the cash out of the banks has significantly jeopardized the price stability in Ukraine and the NBU interventions would become more effective if the flexible foreign exchange rate will be accompanied with flexible regime of inflation targeting.
The intrinsic role of the banks in decarbonizing the economy
Authors: O. Odeku Kola
Published: December 2017

Global warming and climate change continue to disrupt the environment and all aspects of people’s endeavors and as such, there is need to look at causes of climate change and deploy appropriate tools to address the problem of the scourge of climate change. The bank holds a pivotal position in the economy of any country. Apart from being the custodian of money, they also collaborate with the government and international financial institutions to perform various roles that shape the direction of the world’s economy in terms of growth and development. Against the backdrop of this, this article looks at banks as part of the appropriate tools that should constantly be used to address and reduce the influence of fossil fuels that are fuelling global warming and climate change and switch to more sustainable green economy. In order to achieve this, there should be radical acceleration in advancing credit and loan facilities by banks to fund green projects and investments in order to decarbonize the economy, and at the same time maintain sustainable economic growth and development.
Credit provision by banks: a case study analysis of small businesses in South Africa
Authors: N. Ngcobo Raphael
Published: December 2017

Small business sector is considered as an important economic driver by many countries. In South Africa, small business sector has been acknowledged as the driving force to boost the economic growth and an important source of job creation. This article aims at identifying factors that are a challenge in obtaining bank finance by small businesses in South Africa.Primary data for this study involved a survey questionnaire directed to owners of small businesses operating in Ekurhuleni Metropolitan area, Gauteng, South Africa. Factors that were deemed to influence bank loan decision were examined. The research findings revealed that factors such as age of business, business plans availability, educational background of business owner, experience of business owner and availability of a collateral have an influence on the bank loan decisions. This research also found that the accessibility of loan funding from banks was a constraint on business operations and growth. The findings of this study indicate that the mentioned factors are a challenge for small businesses in accessing bank loans to fund their operations.The findings of this study will be of great value to small business owners and policy makers in finding solutions to address the identified barriers.
Antecedents of employee performance and the influence on employee job satisfaction in banking service sector in Indonesia
Authors: Siahaan Elisabet
Published: December 2017

The purpose of this study is to determine the difference between three antecedent variables of performance and the impact on employee job performance through reward, compared with institutions led by men and women. The method used was survey method. Quantitative explanation method was also used to explain the relation, difference, and influence between the variables. The type of data in this research is quantitative data. The data used in this study are primary those from the respondents' perception of the variables used. The population in this study was all bank employees in Jakarta in PT Bank X Tbk, PT Bank Negara Indonesia Tbk, PT Bank Rakyat Indonesia Tbk, PT Bank Tabungan Negara and Bank BCA. The research sample consisted of employees who directly worked under female and male middle managers in the same division. The sampling method was probability sampling according to which all population units have chance to be sampled because of the population’s homogeneity. The sample was determined by simple random sampling. Sampling of male and female employees was proportion of multistage random sampling method and sampling using procedure. To solve the problems of this study Structural Equation Modeling (SEM) analysis tool was employed using Analysis of Moment Structures (AMOS) 5 software. The result showed that the performance of employees led by male middle managers was determined by organizational culture and employee work motivation, but transactional leadership style couldn’t influence employee performance. Female managers’ leadership style had reciprocal influence on organizational culture while male managers’ leadership style didn’t have reciprocal influence on organizational culture. Employee work motivation was influenced by male and female middle managers’ leadership style. The reward received by employees led by male and female middle managers was influenced by employee performance. The job satisfaction of employees led by male and female middle managers was determined by intrinsic and extrinsic rewards they received. Male middle managers generally applied transactional leadership style while female used transactional and transformational leadership styles. Gender difference caused differences in behaviors, mentality, and emotional characteristics which are the results of socio-cultural constructs in the society which produced differences in leadership style, behavior and work attitude.
Study on determination of borehole drainage radius by gas content method
Authors: Li Chengcheng , Cao Jianjun , Zhang Yongjiang
Published: December 2017

In order to determine the radius of borehole gas drainage, using five kinds of gas content under different conditions corresponding to the extraction rate were compared according to different drainage objectives, determine the need for gas drainage amount, according to a certain period of time the average single hole gas drainage quantity, calculate the number of drilling in the region need to be arranged, and then get the borehole gas drainage radius. Based on the actual investigation and comparison analysis, the effective radius of borehole gas drainage in certain extraction time is obtained. The results show that the method of gas content determination of drilling drainage radius is feasible.
Numerical analysis of spiral curved tube of the solid liquid two phase abrasive flow polishing
Authors: Li Junye , Zhou Zengwei , Zhang Xinming , Wei Lili , Su Ningning
Published: December 2017

In order to solve the problem that the inner surface of heterosexual surface parts is difficult to be machined, a solid-liquid two-phase abrasive flow machining method is proposed. The standard model and the pressure-coupled SIMPLEC algorithm are used. The dynamic characteristics of the dynamic pressure, turbulent kinetic energy and turbulence intensity of the polygonal spiral surface flow channel were obtained by numerical analysis of the solid-liquid two-phase abrasive grain polished polygonal spiral curved pipe under different outlet pressure conditions. The numerical simulation results show that the grinding effect is inversely proportional to the outlet pressure. We can achieve better polishing effect by appropriately reducing the outlet pressure.
Discrete phase numerical analysis of servo valve nozzle
Authors: Li Junye , Su Ningning , Zhou Zengwei , Wei Lili , Zhang Xinming
Published: December 2017

In order to study the polishing quality of abrasive flow, The FLUENT15.0 software is used as the platform, taking the way that LES (Large-eddy simulation) model is combined with the Mixture model, the numerical simulation of Grain Flow Processing was carried out by regarding the servo valve nozzle as the research object. The results turn out that with the increase of the inlet speed, the flow state of the abrasive flow is more disorderly, and there is a dramatically improvement in dynamic pressure, which indicates that the collision and friction between the abrasive grains and the wall is more intense. In addition, the vortices and turbulence are more apparent, which are conducive to improving the polishing efficiency of abrasive flow so that achieve precision machining.
Test my product using sine or random?
Authors: Van Baren John
Published: December 2017

As you know, in the vibration world, there are quite a few test “types” to which you can expose your product. The major choices are Sine, Random, Classical Shock, Transient Shock, Field Recorded Time History, Sine-on-Random, Random-on-Random and Sine-and- Random-on-Random. Frequently, our customers will request advice on which of these types of test to run on their product, and in particular, how to choose between the two most common test types: sine or random. Their desire is to know which test, sine or random, is best to most quickly pinpoint flaws in their product. If they can only run one test, either sine or random, which should it be? Recently, I received an even more specific request from a customer. This customer (Don) presented both a sine test and a random test and wanted to know, given both a sine test and a random test, how he could determine which is the most severe? Let’s take a look at the two tests and decide how to answer to his question. Here is Don’s question: How would the following specifications compare with regard to amplitude/severity?
The influence of the smoothing component on the quality of algebraic forecasts
Authors: Poskuviene Kristina
Published: December 2017

Short term time series forecasting model with different internal smoothing techniques is presented in this paper. Computational experiments with real world time series are used to demonstrate the influence of different smoothing techniques in fitness. Algebraic forecasting results with any internal smoothing model outperformed results of the algebraic forecasting without smoothing.
A torsional vibration damper based on a serial viscoelastic coupling of its seismic mass
Authors: Píštěk Václav , Kučera Pavel , Svída David , Beran Martin
Published: December 2017

The design of dynamic torsional vibration dampers of piston internal combustion engines is generally based on the principle of a dynamic damper with one degree of freedom in which the coupling of the seismic mass of the damper to the basic dynamic system is realized by a two-parameter parallel rheological model. With known realizations of this principle, it is usually difficult to achieve the optimum value of the respective damper parameters determined from the computational models, which is particularly true for optimal damping values. A dynamic torsional damper, based on the series arrangement principle of the elastic and damping element, offers better design options to achieve the optimum parameters of both the elastic and damping elements.
"... cada macaco no seu galho". A participação democrática na escola pública
Authors: Patacho Pedro , Santomé Jurjo Torres
Published: December 2017

A participação das famílias e da comunidade foi um dos dois argumentos em que se apoiou o regime de autonomia, administração e gestão das escolas aprovado em Portugal em 2008. Contudo, não existe evidência de que esta participação esteja a contribuir para introduzir melhorias significativas nas escolas. O presente artigo emerge de um estudo de casos mais amplo que analisou a participação das famílias em dois agrupamentos de escolas dos subúrbios de Lisboa, ambos com boa reputação na comunidade, mas bastante diferentes relativamente às variáveis de contexto. Foram aplicados 438 questionários a pais e mães, 122 questionários a docentes da Educação Básica, e foram realizadas 20 entrevistas semiestruturadas com diversos participantes. Os resultados evidenciam sobretudo uma visão conservadora da educação escolar e uma contradição entre a retórica e a prática da participação democrática, parecendo esta constituir o mero cumprimento de um formalismo legal. Palavras-chave: Participação das famílias e da comunidade; Escola democrática; Justiça social; Autonomia escolar ABSTRACTThe participation of the families and the community was one of the two arguments underlying the Portuguese school governance model approved in 2008. However, there is no evidence that this participation has contributed to significant improvements in schools. This article emerges from a larger case study that analyzed the participation of families in two school clusters in the suburbs of Lisbon, both with a good reputation in the community, but quite different regarding the context variables. 438 questionnaires were applied to families, 122 to teachers, and 20 semi-structured interviews were conducted with several participants. Results show, above all, a conservative vision of education and a marked contradiction between the rhetoric and the practice of democratic participation, which seems to constitute the mere fulfillment of a legal formalism.Keywords: Family and community participation; Democratic school; Social justice; School autonomy
Conhecimentos sobre sexualidade: Construção e validação de um instrumento de avaliação para adolescentes em contexto escolar
Authors: Carvalho Cristiana Pereira de , Pinheiro Maria do Rosário De Carvalho Nunes Manteigas e Moura , Pinto Gouveia José Augusto , Vilar Duarte Rei
Published: December 2017

O conhecimento, enquanto fator capaz de exercer influência sobre as atitudes, é um pré-requisito fundamental nos programas de prevenção dos comportamentos sexuais de risco. Este estudo teve como objetivo desenvolver um instrumento para avaliar os conhecimentos dos adolescentes sobre a sexualidade. O Questionário de Conhecimentos sobre Sexualidade pretende avaliar os conhecimentos num continuum de dificuldade e distinguir os alunos com diferentes níveis de saberes. A amostra foi constituída por 1545 adolescentes com uma média de 16 anos (DP=1.80) que frequentam a escola. Os resultados evidenciam que as raparigas estão mais informadas do que os rapazes, e que os jovens portugueses com mais de 15 anos, sem religião, com mais de 5 anos de educação sexual na escola e que tiveram a mãe como educadora sexual são os que têm mais conhecimentos sobre a sexualidade. As atitudes dos adolescentes em relação ao preservativo mostraram estar associadas aos conhecimentos e os adolescentes que usaram preservativo no último encontro sexual revelaram níveis mais elevados de conhecimentos. Palavras-chave: Conhecimentos; Educação Sexual; Adolescentes; Questionário ABSTRACTKnowledge, as a factor that exerts influence on attitudes, is a fundamental prerequisite in prevention programs of risky sexual behaviours. The aim of this study was to develop an instrument that would assess the knowledge that adolescents have about sexuality. The Knowledge about Sexuality Questionnaire assesses the knowledge in a difficulty continuum and also the distinction of students with different levels of knowledge. The sample was composed by 1545 adolescents with a mean age of 16 years (SD=1.80) that attend school. The results show that girls are more informed than boys, and that Portuguese adolescents older than 15, without religion, with more than 5 years of sexual education in school and having their mothers as sexual educators are the ones with more knowledge about sexuality. The attitudes of the adolescents towards the use of condom are associated with the knowledge they have about it and the adolescents that used condom in their last sexual relation reveal higher levels of knowledge. Keywords: Knowledge; Sexual Education; Adolescents; Questionnaire
LIFE SKILL EDUCATION:STASTUS, PRACTICE AND POLICY IN INDIA
Authors: Shinde Geeta
Published: December 2017

Now a day’sparents, teachers,students,institutes,policy makers,and politicians also talking about life skills. They consider that “We should not give the only a text book knowledge to our child, we should provide them all skills which required for excellent life .If you want to say say I am human or we are social animals then you must acquire the skills which defined by the WHO.These are known as communication,critical thinking, creativity, self-awareness, decision making, problem solving,empathy, interpersonal relationship ,these all require for coping with stress and coping with emotions.This paper is focus based on literature reviews,how this skills are nurtured not only our education system overall human life. Along with trying to focus life skill policy and practices.
A Comparative Study of Degree of Activism of Polytechnic and Arts Degree Students
Authors: . Meenakshi , . Rachna
Published: December 2017

Activism is a social concept which stands for the non-conformist, inconsistent and disruptive behavior of youth. In the present research this phenomenon is used for the activities of student activists whose activities cause trouble in the normal and smooth functioning of the system of the institution. This study aims to compare the Degree of Activism of Polytechnic and Arts Degree students. The findings revealed that there is significant difference between the Degree of Activism of Polytechnic and Arts Degree students. There is significant difference between the Degree of Activism of male and female Arts Degree students. There is no significant difference between the Degree of Activism of male and femalePolytechnic students. There is significant difference between the Degree of Activism of Polytechnic male and Arts Degree male students. There is no significant difference between the Degree of Activism of Polytechnic female and Arts Degree female students
REINSTILLATION OF MORAL AND ETHICAL VALUES IN CHILDREN AND YOUTH: REFLECTING UPON THE ROLE OF PRECEPTORS AND PARENTS IN REKINDLING THE FLAME OF MORALITY IN MORTALSWITH SPECIAL REFERENCE TO INDIAN EDUCATION SYSTEM
Authors: Kaushal Rajeev
Published: December 2017

The precious possession of any educational institution worth its name is the treasure of knowledge and skills which it imparts to the educands in the hope that this very treasure proves to be valuable for them in every walk of life. The treasure of values serves as the springboard for determining the various aims of education. In fact, values act as the cornerstone of entire educational process whatsoever be the field. However, it is a matter of grave concern that the monetary value of education is escalating and its moral value is dwindling day by day. It won’t be an exaggeration to say that the real cause and worth of education are plummeting with each passing day. As per the current scenario, there is dire need of instilling moral and ethical values in all those who are related to the field of education and this necessitates the inclusion of value based education the prime onus of which lies on the shoulders of none other than the teacher who is undoubtedly the maker of a nation's destiny.The present paper reflects upon the significance and need of value education and also throws light on how can moral and ethical values be inculcated in students at various levels of education besides giving valuable suggestions pertaining to the use of same in the field of Teaching and Pre-service Teacher Education programme.
Workshop on Emerging Technology and Data Analytics for Behavioral Health (Preprint)
Authors: Kotz David , Lord Sarah E , O'Malley A James , Stark Luke , Marsch Lisa A.
Published: December 2017

UNSTRUCTURED

Wearable and portable digital devices can support self-monitoring for patients with chronic medical conditions, individuals seeking to reduce stress, and people seeking to modify health-related behaviors such as substance use or overeating. The resulting data may be used directly by a consumer, or shared with a clinician for treatment, a caregiver for assistance, or a health coach for support. The data can also be used by researchers to develop and evaluate just-in-time interventions that leverage mobile technology to help individuals manage their symptoms and behavior in real time and as needed. Such wearable systems have huge potential for promoting delivery of anywhere-anytime health care, improving public health, and enhancing the quality of life for many people. The Center for Technology and Behavioral Health at Dartmouth College, a P30 “Center of Excellence” supported by the National Institute on Drug Abuse at the National Institutes of Health, conducted a workshop in February 2017 on innovations in emerging technology, user-centered design, and data analytics for behavioral health, with presentations by a diverse range of experts in the field. The workshop focused on wearable and mobile technologies being used in clinical and research contexts, with an emphasis on applications in mental health, addiction, and health behavior change. In this paper, we summarize the workshop panels on mobile sensing, user experience design, statistics and machine learning, and privacy and security, and conclude with suggested research directions for this important and emerging field of applying digital approaches to behavioral health. Workshop insights yielded four key directions for future research: (1) a need for behavioral health researchers to work iteratively with experts in emerging technology and data analytics, (2) a need for research into optimal user-interface design for behavioral health technologies, (3) a need for privacy-oriented design from the beginning of a novel technology, and (4) the need to develop new analytical methods that can scale to thousands of individuals and billions of data points.
TRANSFORMING SMARTPHONE INTO GEOSPATIAL VIDEO PROVIDER
Authors: Milosavljević Aleksandar , Predić Bratislav , Rančić Dejan
Published: December 2017

Modern handheld devices, i.e. smartphones, have gone beyond their basic purpose for some time now. Beside powerful screens, which usually surpass those we use on our desktops, powerful cameras, and internet connectivity, these devices usually integrate many sensors. In this paper, we discuss how we can combine smart phone’s camera, connectivity, GPS receiver, accelerometer, and magnetometer in order to transform this kind of a device into geospatial video source. To validate and test suggested solution, we implemented a simple mobile app that fetches frames and sensors’ data, calculates georeference and streams geospatial video. In the paper, we also discussed limitations that are caused by the limited precision of used sensors.
ORTHOGONAL HYBRID-FUZZY CONTROLLERS
Authors: Nikolić Saša , Antić Dragan , Perić Staniša , Danković Nikola , Spasić Miodrag , Milovanović Miroslav
Published: December 2017

The main idea of this paper is to present a possibility of application of hybrid-fuzzy controllers in control systems theory. In this paper, we have described a new method оf using orthogonal functions in control of dynamical systems. These functions generate genarilzed quasi-orthogonal filter, which are used in the concluding phase of the fuzzy controllers. Proposed hybrid-fuzzy controllers of Takagi-Sugeno type has been applied to a DC servo drive system and performed experiments have verified efficiency and improvements of a new control method.
ONE APPROACH FOR ELIMINATING COMMUTATIVE PAIRS OF ELEMENTS IN WEB APPLICATIONS
Authors: Milić Petar , Veljković Nataša
Published: December 2017

Nowadays web applications contain graphical elements which are often connected in a way that reflects relationship between them. Connections have different structure depending on needs of application. A common type of structure used to describe relationship between elements consists of four members, two of which are elements and two lines represent relationship between them. This paper presents an approach to eliminate commutative pairs in array of elements with mutually exclusive connections. The ECOMPAIR (Elimination of COMmutative PAIRs) algorithm allows using one line with associated descriptions to link two elements. Experimental results obtained from applying the ECOMPAIR algorithm on jsPlumb library for visualization show significant reduction on number of elements necessary for visualization.
FUZZY CONTROL OF DIFFERENTIAL DRIVE MOBILE ROBOT FOR MOVING TARGET TRACKING
Authors: Petrović Emina , Simonović Miloš , Nikolić Vlastimir
Published: December 2017

Tracking of moving objects, including humans has important role in mobile robotics. In this paper, the hierarchical control structure for target/human tracking consisted of high and low level control was presented. The low level subsystem deals with the control of the linear and angular velocities using multivariable PD controller whose parameters are obtained by Particle swarm optimization. The position control of the mobile robot represents the high level control, where we use two fuzzy logic Mamdani controllers for distance and angle control. In order to test the effectiveness of the proposed control scheme a simulation was performed. Two cases, when the mobile robot pursues a target moving along a circular path and when the mobile robot pursues a target moving along a rectangle path, were simulated.
COMPARATIVE ANALYSIS OF DIFFERENT CAD METHODS FOR EXTRACTION OF THE HEMT NOISE WAVE MODEL PARAMETERS
Authors: Đorđević Vladica , Marinković Zlatica , Pronić-Rančić Olivera
Published: December 2017

The noise wave model has appeared as a very appropriate model for the purpose of transistor noise modeling at microwave frequencies. The transistor noise wave model parameters are usually extracted from the measured transistor noise parameters by using time-consuming optimization procedures in microwave circuit simulators. Therefore, three different Computer-Aided Design methods that enable more efficient automatic determination of these parameters in the case of high electron-mobility transistors were developed. All of these extraction methods are based on different noise de-embedding procedures, which are described in detail within this paper. In order to validate the presented extraction methods, they were applied for the noise modeling of a specific GaAs high electron-mobility transistor. Finally, the obtained results were used for the comparative analysis of the presented extraction approaches in terms of accuracy, complexity and effectiveness.
SOFTWARE BASED EXPERIMENTAL SYSTEM FOR ELECTRICAL POWER QUALITY MEASUREMENT USING THE WIRELESS SENSOR NETWORK MODULES
Authors: Simić Milan , Planinšič Peter , Denić Dragan , Gleich Dušan , Živanović Dragan , Malajner Marko
Published: December 2017

Experimental system for measurement of standard electrical power quality (PQ) parameters, based on wireless sensor network (WSN), is presented in this paper. System includes generator of reference voltage waveforms, software application for measurement of standard PQ parameters and two microcontroller based wireless sensor modules for transmitting and receiving of measurement results. Reference voltage signals are provided using signal generator with possibility for simulation of typical network disturbances, presented in some previously published papers. This PQ signal generator is functionally supported by the virtual instrumentation software and data acquisition card. Measurements of basic quality parameters for reference test signals are performed using the LabVIEW software application. Time interval for each measurement cycle is 1 s. For communication is used wireless sensor network based on communication standard IEEE 802.15.4 (Zigbee). Hardware configuration includes two wireless sensor modules SPaRCMosquito v.2, based on the microcontroller with Cortex M3 architecture. Transfer of measurement results, between computer and wireless sensor modules on transmitter and receiver points, are provided using standard USB interface.