bluuebunny/crossref_metadata_2025 huggingface dataset:
One Dimensional Modeling of Jet Diffusion Flame
Authors: Sengupta Angan , Gupta A.K. , Mishra I.M. , Suresh S.
Published: January 2020

This paper reports on the determination of the flame height of a flare system using theoretical approach based on the laws of conservation of mass, momentum and energy. The set of ordinary differential equations at steady state conditions are solved numerically by fourth order Runge–Kutta method. The extent of reaction between the fuel and the entrained air has been studied by introducing the reaction mixing efficiency parameter, as the reaction rate is fixed by local entrainment rate. The reaction mixing efficiency parameter is a key measure to determine the height of the flame and its variation with the source velocity is limited by the flame width and the maximum vertical flame velocity at the tip of the flaming region. The variation of different parameters as vertical flame velocity, flame geometry and flame temperature with flame height are shown in plots. It is found that the flame geometry undergoes an initial necking up to a certain height, followed by an increase in its spread thereafter. The flame geometry and the flame dynamics depend exclusively on the burner design and the stack exit velocity. The flame height to burner diameter ratio of the jet diffusion flame is found to vary linearly with Froude number with a constant slope in the logarithmic plot.
Co/SBA-15 modified with TMB in the degradation of phenol
Authors: Vidal H. Pérez , Lunagómez M. A. , Pacheco J.G. , Torres J.G. Torres , Romero D. De la Cruz , López I. Cuauhtémoc , Beltramini J.N.
Published: January 2020

Mesoporous materials like SBA-15 offer excellent properties such as catalyst support adsorbent due to its textural characteristics and their surface chemistry. The main objective of this study was to support cobalt (20 % w) in the type ordered mesoporous material SBA-15 and expand the pore size with the introduction of a "blowing agent", such as 1,3,5-trimethylbenzene (TMB), to be evaluated in the degradation of phenol. By its physicochemical characterization, it was confirmed that this is an ordered mesoporous material with two-dimensional hexagonal structure (p6mm) with high specific area, narrow pore distribution and typical morphology of this material. The pore size of SBA-15 has been extended to 19 nm by the addition of cosolvent organic molecules (TMB) and the particle size of cobalt decreased from 18.8 nm in SBA-15 to 6.4 nm on average by supporting it in SBA-15 modified with TMB; this property seems to confer the material be more selective in the conversion of CO2, which is the reason why it has greater activity for the degradation of phenol.
Simulation tools for mobile ad hoc networks: a survey
Authors: Dorathy Irin , Chandrasekaran M.
Published: January 2020

Simulation tools are essential for validating any research idea before it is being implemented. This is very essential for all the researchers irrespective of the field of research. Simulators provide a way for analysing the design.There are many simulation tools available for the network researchers. Network Simulators are used to test the performance of existing or new algorithms and protocols.Some of the simulation tools in networking include OPNET (OPtimized Network Engineering Tool), NS-2 (Network Simulator version 2), OMNET++ (Objective Modular NETwork Testbed in C++), GloMoSim (Global Mobile Information System Simulator), QualNet, NetSim (Network Simulator), JiST/SWANS (Java in Simulation Time/ Scalable Wireless Network Simulator), J-Sim (Java-based simulation) and NS-3 (Network Simulator Version 3). Simulation tools may be open source or commercial. In this paper, both the open source and commercial simulators are discussed. This survey reveals that for simulating large networks, simulators like OPNET, GloMoSim, QualNet, NetSim, JiST/SWANs and NS-3 can be used. For small network simulation NS-2 and J-Sim can be preferred. Open source simulators are poor in documentation. Commercial simulators have good documentation. Based on the requirements of the research, a proper simulation tool can be selected.
Tungsten based catalysts for oxidative desulfurization: surface species and partially reduced systems as key features to improve the activity
Authors: Luna Mauricio Lopez , Caero Luis Cedeño
Published: January 2020

Tungsten oxide based catalysts for the oxidative desulfurization (ODS) process of dibenzothiophene compounds using H2O2 as oxidizing agent were studied. Catalysts were characterized by TPR-H2, SEM-EDS, XRD, N2-physisorption and Raman spectroscopy. Different surface tungsten oxide species were detected and related to the ODS activity, furthermore, the predominance of the surface tungsten oxide species was associated with the tungsten loading. Moreover, in some catalysts, WO3 crystals were detected and their role in the performance of the catalysts was studied too. Finally, the catalysts were partially reduced and tested in the ODS reaction, the reduced catalysts exhibited high activity and an improvement of H2O2 to sulfones yield.
Lifetime enhancement in wireless sensor networks using binary search tree based data aggregation
Authors: S. Gopikrishnan , P. Priakanth
Published: January 2020

Energy efficient data aggregation is a key solution to enhance the lifetime of wireless sensor networks since sensor nodes are battery-powered and deployed in remote environments. This article explore a two-hop data aggregation tree construction algorithm using binary search tree to reduce the total energy consumption of sensor nodes in wireless sensor networks. An adaptive and hybrid routing algorithm for simultaneous data aggregation and exploit the data correlation between nodes using the two-hop data aggregation tree framework is proposed. Routes are chosen based on the shortest response time for the broadcasting request to minimize the total energy expended by the network. This paper also proposes a high secure asymmetric key cryptography algorithm to provide the secure data communication among the network. The data aggregation function that is used in the proposed routing algorithm enhances the lifetime of sensor network by resolving the delay, collision and security issues. Simulations results show that the binary tree based data aggregation can appreciably reduces the total energy consumption and resolves the maximum data aggregation issues in wireless sensor network.
Network coding based energy efficient LEACH protocol for WSN
Authors: Tamilselvan G. M. Tamilselvan , Gandhimathi K.
Published: January 2020

Wireless Sensor Network (WSN) consists of low cost tiny sensor nodes with limited energy resource, so it is a tedious task to develop energy efficient routing schemes that enhances the network lifetime. In WSN, clustering is used to improve the efficiency of finite energy resource. LEACH protocol is one of the widely used clustering techniques in WSN. So, in this paper, an energy efficient LEACH protocol is designed with network coding for WSN. Initially, the clusters are formed with the LEACH protocol, where it uses the residual energy metric and drain rate to select the cluster heads.  Since network coding is an optimal technique to enhance the network performance by minimizing the number of transmissions, it is incorporated into the LEACH Protocol, where it has been applied at the cluster head levels. Furthermore, the next level of network coding is processed at a node by selecting any of the nodes as a master node. The simulation results show that the proposed scheme performs better than the EE-LEACH and LEACH protocol in terms of network lifetime, packet delivery ratio.
Comparison of regenerated bamboo and cotton performance in warm environment
Authors: Ferrales Karina Solorio , Angulo Carlos Villa , Angulo Rafael Villa , Angulo José Ramón Villa
Published: January 2020

Different materials have been used to fabricate summer (warm environment) clothing, such as cotton, nylon, neoprene, polyester and 100% synthetic fibers. However, due to mechanical and thermal properties, nylon and polyester cloth have a tendency to rot and chafe in damp conditions. In addition, close-fitting synthetic fibers and neoprene make some wearers feel uncomfortable due to the rapidly occurring body skin sweat. However, bamboo and cotton have demonstrated to have low thermal conductivity. Hence, they are excellent materials to fabricate summer clothing. In this study, a theoretical analysis complemented with practical measurements of thermal properties of three different rib knitted structures produced from a 30 tex yarn of three blends of fibers (100% regenerated bamboo, 100% cotton and 50:50 regenerated bamboo: cotton) was realized to compare bamboo and cotton performance in warm environment. Obtained results show that garment thickness and heat storage rate in the human body can significantly be reduced by using 100% regenerated bamboo, without compromising comfort.
A new methodology to optimize operation cycles in a BWR using heuristic techniques
Authors: Servina Juan José Ortiz , Castillo Alejandro , Talavera Francisco
Published: January 2020

A new system to optimize fuel assembly design, fuel reload design and control rod patterns design is shown. Fuel assembly optimization is made in two steps.In the first one, a recurrent neural network for the fuel lattice design of the bottom of the fuel assembly is used. In the second one, the top of the fuel assembly is built adding gadolinia to bottom fuel lattice. Fuel reload is optimized by another recurrent neural network whereas the control rod patterns are optimized by an ant colony method. This new system starts building a fresh fuel batch. Later, a seed fuel reload is optimized according to a Haling calculation. Afterwards an iterative process is started: firstly, control rod patterns through the cycle are optimized, once that a new fuel reload with previously optimized control rod patterns is found. If thermal limits cannot be satisfied in this iterative process after several iterations, a new seed fuel reload is designed. If cold shutdown margin cannot be fulfilled, then gadolonia concentration is increased into the fuel assembly. Finally, if energy requirements cannot be fulfilled, then the uranium enrichment of the fuel lattice of the bottom fuel assembly is increased. Results of this new system are successful: thermal limits and cold shutdown margin are fulfilled, and energy requirements are reached.
In vitro assessment of murine melanoma cells sensitivity to non-thermal atmospheric plasma
Authors: Guerrero Jorge Humberto Serment , Romero Karina Giron , Callejas Régulo López , Eguiluz Rosendo Peña
Published: January 2020

Melanoma is a dangerous skin cancer incidence of which has been increasing over the past years, so is important the search for new treatments. The purpose of the present work is to evaluate the relative sensitivity of a melanoma cell line to helium-generated non-thermal plasma. For that, three cell types were used (murine melanoma B16 cells, mouse embryo fibroblasts, and peripherical blood lymphocytes) and both cytotoxicity and genotoxicity were evaluated. The lethality produced by no-thermal plasma was higher in melanoma mouse cells compared with lymphocytes and fibroblasts. Accordingly, B16 cells showed higher levels of DNA fragmentation by this agent. Overall, the results suggest that non-thermal plasma has the potential to become a good alternative for treating skin cancer.
Nickel (II) sorption from aqueous media by Agave salmiana as biosorbent
Authors: Nava D. M. Sánchez , González H. López , Olguín M. T. , Bulbulian S.
Published: January 2020

In this work, the removal of nickel from aqueous solutions by Agave salmiana was investigated. For this purpose the removal of this heavy metal (Ni2+) was carried out in a batch system as a function of contact time, pH, and the initial concentration of the metallic specie in solution. The sorption data were fitted to pseudo-first order and pseudo-second order kinetic models to found the parameteres which describe the processes. It was found that the maximum sorption of the Agave for Ni2+ was at pH 10 and pseudo-second order kinetic model well described the biosorption behavior of this heavy metal by the non-living biomass. Furthermore, the maximum sorption capacity obtained from the isotherm was 10 mgNi/gAgave.
Devolatilization of a particle coal in a plasma reactor
Authors: Gomez Juan Diaz , Sotelo Joel Pacheco , Barrientos Ricardo Valdivia , Pacheco Marquidia Pacheco
Published: January 2020

In this paper, a warm plasma reactor is used to increase the discharge by the addition of 3 different nitrogen-coal carbon mixtures. An experimental study was carried out to determine the temperatures profile in a jet plasma along the chamber, according to nitrogen/coal ratio and power consumption. The coal particle was also characterized in function of its size. An important effect when the volatile components released from the coal is manifested and passing through the plasma jet, this produce the plasma jet increase. This effect has a great importance to performance improvement in plasma reactor profitable for greenhouse gas (GHG) treatment. As a consequence, the high temperature surrounding the plasma jet, augments the degradation capacity.

The experimental analysis, the kinetic parameters of the combustion of nitrogen-coal mixture was taking in consideration, as well as the appearence of a considerable amount of new radicals. In addition, increasing the plasma jet has a significant impact on the overall reactor performance of coal particles that release volatile component. This allows promp increase and much enhanced plasma jet stability.

The aim of the study was to evaluate and develop a model in order to know the temperature behavior in a plasma jet. Different sizes of coal particles at specific rate of 5 slm (standard liter per minute) of a nitrogrn-coal mixture have been simulated in this model. The advantages of this technique is to simulate other sizes of particle and obtaining the best condition and operating parameters of plasma reactor.
The design of a liquefied natural gas (LNG) distribution network of a company operating in México
Authors: Ruíz Samuel López , Benítez Rafael Bernardo Carmona
Published: January 2020

This paper presents a modification of the Multi Depot Multi Period Vehicle Routing Problem with heterogeneous fleet (MDMPVRPHF) to consider capital expenditures and operating expenses (MDMPVRPHFMR). The aim is to design a product distribution network and minimize the total delivery cost. The MDMPVRPHF only considers transportation costs with transportation restrictions. In this paper, the purpose is to solve a real'life freight distribution problem that considers capital expenditures and operation expenses. The MDMPVRPHFMR is formulated as a mixed integer programming model. The results of the application of both models to a real case of study demonstrate the advantages presented by the MDMPVRPHFMR over the MDMPVRPHF. Hence, management restrictions must be considered when designing a real-life freight distribution problem. The study case is to develop a liquefied natural gas distribution model based on a real company operating in México.
An attribute-based classification by threshold to enhance the data matching process
Authors: Angeles Maria Del Pilar , Monreal Carlos G. Ortiz
Published: January 2020

The problem of detection and classification of extensional inconsistencies during data integration of disparate data sources affects business competitiveness. A number of classification methods have been utilized until now, but there still some work to do in terms of effectiveness and performance. The paper shows the proposal, implementation, and evaluation of a new classification algorithm called Attribute-based Classification by Threshold that overcomes the disadvantages of the Threshold-based Classification. We have carried aout an evaluation of quality of the data matching process by comparing Threshold-based Classification, Farthest First and K-means against the proposed algorithm. The Attribute-based Classification by Threshold has a better performance than the rest of the unsupervised classification methods.
Public sociology and southern European societies: a critical view
Authors: Borghini Andrea
Published: January 2020

The aim of our paper is to analyze the role that a properly reformed public sociology can play in enhancing the perspective of southern European societies. The paper is organized in three parts. In the first part, we summarize the main aspects of Burawoy’s proposal, while in the second part we will focus on three dimensions (communication, ethical-political and epistemological dimensions), detecting the fundamental dualism that runs through them and which we will try to clarify. In the third part we emphasize the substantial analogy of the three forms of dualism that characterize Burawoy’s proposal and suggest hypotheses of the solutions that have been promoted in the international debate; we will introduce our work in progress hypothesis of solution in accordance with the solution proposed for the epistemological dimension.
The societal quality of Southern European Mediterranean countries
Authors: Bericat Eduardo , Martín-Gimeno Rubén
Published: January 2020

On the basis of extensive empirical data that the 72 focused composite indicators, making up the System of Indices on the Quality of European Societies (SIQES), provide on the 28 EU Member States, this paper analyses the societal quality of the Southern European Mediterranean countries, namely, Spain, Italy, Portugal and Greece, from a holistic, multidimensional and comparative perspective. First and foremost, it indicates the position of these Mediterranean countries in the European societal quality rankings. Secondly, after confirming that, in accordance with the Five Europes Typology, the Mediterranean countries form a distinctive cluster, it includes an analysis of their social characteristics, comparing them with those of the other four clusters. Thirdly, on the basis of the 14 societal quality domains included in the system, it offers a diagnosis by contrasting the societal quality of the Southern European Mediterranean countries with that of the rest of the EU Member States. This structural diagnosis, endogenous as well exogenous, offers a panoramic view of great importance to both social researchers and policymakers.
Sex and Gender Equality Policies in Education in Three Southern European Societies: the cases of Andalusia and Valencian Community (Spain) and Portugal
Authors: Venegas Medina Mar , Villar-Aguilés Alicia , Almeida Santos Sofía
Published: January 2020

Gender mainstreaming is an international strategy in Europe relating to gender equality using an intersectional approach. It deals, specifically, with new challenges for sexuality and diversity in education. From within this context, this paper focuses on two goals. The first is to analyse sex and gender equality policies in education, since the 2000s, in three Southern European societies: Andalusia and Valencian Community, in Spain, and Portugal. The second goal is to arrive at some comparative conclusions about the recent developments in sex and gender equality policies in education in these three societies. We end with some comparative conclusions. First, there is the political orientation of governments, which seems to be of relevance. Second, there are the policies and plans reviewed, which show a move from (binary) gender equality to a more inclusive gender equality that intersects with sexuality and diversity. Sexuality education, already available in Portugal, is still absent from Spanish schools. These three experiences can inform European public policies.
The importance of attitudes towards risk to explain indebtedness in Southern European countries
Authors: Massó Lago Matilde , Abalde Bastero Nazaret
Published: January 2020

The aim of this paper is to analyse the socio-demographic determinants and individuals’ attitudes towards risk to explain indebtedness in Southern European countries. This analysis is done within the context of an increasing process of financialization of individual behaviour. We use the Household Finance and Consumption Survey (HFCS), drawn up by the European Central Bank between 2009 and 2011. The methodological plan consists of a combination of a multiple correspondence analyses in order to identify the various household debt models and a logistic regression analysis in order to detect the explanatory variables that best explain the differences between indebtedness models. The main contribution of this paper is the identification of those variables that explain the economic differences in household debt levels. Results are showing a relevant influence of individual attitudes to explain indebtedness in Southern Countries in detriment of sociodemographic variables which are not relevant explanatory factors.
Detección molecular de sífilis gestacional y congénita
Authors: Durán-Rodriguez Andrea Tatiana , Navarrete-Ospina Jeannette , Muñoz-Molina Liliana Constanza , Chavarro-Portillo Bibiana , Arenas-Moreno Leeddy , Pinilla-Bermúdez Gladys
Published: January 2020

Objetivo: estandarizar una qPCR para la determinación de T. pallidum en muestras de suero de pacientes con sífilis gestacional y congénita.Materiales y métodos: se optimizó una qPCR con sonda para la amplificación del gen TpN47 en muestras de suero, se evaluó la sensibilidad, especificidad y eficiencia analítica de la técnica. Se comparó con pruebas serológicas (VDRL y TPPA) y se calculó índice de concordancia Kappa. Resultados: la qPCR mostró un límite de detección de 0.113 femtogramos, especificidad analítica del 100% y fidelidad de 104%. Se evidenció correlación optima en la prueba, sugerida por un r2 de 0.99 y un valor p <0,0001 de la qPCR. Se observó acuerdo entre las pruebas serológicas y moleculares.Conclusiones: se desarrolló una herramienta molecular prometedora con buena sensibilidad, óptima especificidad analítica y gran potencial diagnóstico para la detección y hallazgo de T. pallidum subsp. pallidum, a través de la amplificación del gen TpN47 en muestras clínicas de pacientes con diagnóstico presuntivo de sífilis gestacional y congénita.
Diseminación clonal de KPC-2 en Klebsiella pneumoniae resistente a carbapenémicos
Authors: Yauri María , Rodríguez Mercedes Rodríguez , Alcocer Iliana
Published: January 2020

Objetivo: Determinar los mecanismos de resistencia antibiótica y la epidemiología molecular de aislados clínicos de Klebsiella pneumoniae resistentes a carbapenémicos.Materiales y métodos: 30 aislados multirresistentes de K. pneumoniae fueron obtenidos a partir de: urocultivo, aspirado traqueal, secreción de herida, sonda vesical, hemocultivo, líquido peritoneal, punta de catéter, colección abdominal y secreción bronquial. Los aislados fueron colectados de noviembre de 2012 a abril de 2013. La identificación y susceptibilidad antibiótica fue determinada por el sistema automatizado VITEK 2. Para la amplificación de genes de resistencia se empleó PCR, la determinación de las Secuencias Tipo (ST) fue obtenida por tipificación multilocus de secuencias (MLST) y la relación clonal fue establecida por electroforesis en gel de campo pulsado (PFGE).Resultados: Todos los aislados mostraron fenotipos multirresistentes, excepto a colistina y tigeciclina. El 100% de los aislados fue productor de la carbapenemasa KPC-2. La determinación de la presencia de genes codificantes de β-lactamasas de Espectro Extendido mostró que el 67% de los aislados fue positivo para el gen blaCTX-M, el 100% fue positivo para el gen blaSHV y 93% fue positivo para el gen blaTEM. El análisis de la relación clonal de los 30 aislados agrupó a 20 en un mismo pulso tipo. El análisis por MLST demostró que la ST predominante fue ST258 presente en el 60% de la población, seguida de ST1199 presente en el 20% de la población analizada.Conclusiones: Los resultados obtenidos demuestran la importancia de implementar y combinar estudios epidemiológicos, clínicos y moleculares para comprender la distribución de la resistencia entre bacterias de interés clínico.
VISUALIZATION AND COMPREHENSION: Corroborating children’s reading ability
Authors: Moriyanti Moriyanti , Muna Hayatul , Ismail Nyak Mutia
Published: January 2020

This study aimed at finding out the influence of visualization on students’ reading comprehension ability. Quantitative approach was employed in carrying out this research. The data were collected through test as it was the main instrument of this study. The data analysis was carried out using manual statistics calculation to find out the mean score before and after the treatment. From the result, it was obtained that the most effect that visualization has is on the inferring; second, it is on details; then it is followed by main idea. The smallest influence is made on vocabulary. Thus, it can be concluded that visualization while reading can help students a lot in terms of inferring, details, and main idea.
INVESTIGATING EFL LEARNERS’ MORALS TOWARD CHARACTER EDUCATION AT STKIP MUHAMMADIYAH ACEH BARAT DAYA
Authors: Syafitri Rina , Tursina Puan
Published: January 2020

Being smart and having good grades are the dreams of students in learning process. However, to achieve those goals they have to be aware that affective or character aspect is equally important as cognitive and psychomotor aspect in the learning process. Thus, this study aimed to reveal the learning process of EFL learners’ morals toward education character. The research method of this study was quantitative; the questionnaire was used to collect the data. A total number of 34 participants were selected from each semester of English education department (EED) at STKIP Muhammadiyah Aceh Barat Daya by using convenience sampling. The data were analyzed quantitatively by using percentage. The results revealed that (1) most of students had positive attitudes toward character education in the learning process and (2) the common positive responses implied by EED students toward character education were in terms of commitment, responsibility and discipline. In summary, most of the students had a good character toward the implementation of education character in the classroom while having courses. However, there were only a few of EED students who were still not able to imply a good attitude toward education character in the classroom. Therefore, it is recommended for lecturers to give more attention toward the implementation of students’ education character in the classroom and continuously create strategies to develop students’ good character so that they will have good moral and knowledge.
Complexity and Transdisciplinarity: The Case of Iconic Urban Megaprojects
Authors: Santamaría Gerardo del Cerro
Published: January 2020

The nature and the shaping of urban megaprojects owes to the socio-economic, developmental, institutional and geographic context where they emerge. However, megaprojects, regardless of context, constitute disorderly, disruptive and contentious complexity and have an intrinsic potential (often realized) to elicit substantial controversy and criticism that fundamentally questions the parameters of the projects as envisioned and publicly presented by their promoters. As a result, it is possible to highlight – as will be done in the conclusion to this paper -- some suggestions for future research and policy practice aiming at urban sustainability that can be applied to the planning, design, management, implementation and development of megaprojects worldwide. Our proposal converges around transdisciplinary research on urban megaprojects. From the vantage point of transurbanism, the complex nature of megaprojects can be justly observed and assessed. In fact, the concept of complexity, which is salient in transdisciplinary approaches, suits research on urban megaprojects as characterized by disorder, disruption and contention.
Preparation of FePO4•2H2O from LiFePo4 mixed with LiNixCoyMn1-x-yO2 waste material
Authors: Tang Honghui , Qiao Yanchao , Dai Xi , Tan Feng , Li Qiang
Published: January 2020

A method for preparing battery grade FePO4?2H2O from LiFePO4 and LiNixCoyMn1-x-yO2 mixed waste is proposed. The optimum leaching conditions included: temperature of 50?C, 3:1 liquid?solid mass ratio, 3.6 HCl/FePO4?2H2O mole ratio, 0.75 H2O2/FePO42H2O mole ratio, and 2 h reaction time. The solution obtained from the leaching waste material was diluted to a 1.0 M Fe concentration, then transferred to an 1 L beaker, where temperature, pH, complexing agent, ammonia addition rate and feeding mode were studied in order to determine their effects on the precipitation, particle size and morphology of FePO4?2H2O. High precipitation rate of Fe with low percentages of Al, Ni, Co, Mn in the FePO4?2H2O is achievable when precipitation is performed at a temperature of 85?C, pH of 2.0, and 20 g L-1 complexing agent. Furthermore, it was observed that a slow addition of ammonia and a flow feeding method contributed to the production of FePO4?2H2O, with small particle sizes and a flake morphology.
Structure and piezoelectric properties of cazro3-modified (K,Na,Li)(Nb,Sb)O3 ceramics prepared from powders synthesized by microwave heating
Authors: Li Xingrui , Fan Bingbing , Jia Haowei , Shi Xuewen , Zhang Yilin , Yang Xiaoyu , Zhang Rui
Published: January 2020

CaZrO3-modified (K0.48Na0.48Li0.04)(Nb0.95Sb0.05)O3 (CZ-KNLNS) lead-free
piezoelectric powders were synthesized by microwave method followed by
conventional solid state sintering. Different amounts of CaZrO3 were added
(i.e. x = 0, 0.02, 0.03, 0.04, 0.06 mol) and their effects on the crystal
structure, microstructure, as well as the electrical properties, were
investigated. The results showed that CZ-KNLNS powders could be obtained by
microwave heating at a relatively low temperature and short time of 650 ?C
and 10min, respectively. The obtained CZ-KNLNS powders have cubic structure
and good crystallinity with average particle size of 300-700 nm. The
particle size gradually decreases with the increase of CaZrO3 amount,
indicating that addition of CaZrO3 inhibits the growth of the particles. The
powders were further sintered at 1120 ?C for 4 h and CZ-KNLNS ceramics with
homogeneous and highly dense microstructure were obtained. X-ray diffraction
showed that, with increasing CaZrO3 content, the phase structure gradually
changed from orthorhombic to rhombohedral, which can be considered as the
coexistence zone of orthorhombic-rhombohedral (O-R) phase in the range of
0.03 < x < 0.06. The optimized content of CaZrO3 is x = 0.04, at which the
CZ-KNLNS piezoelectric ceramics show good properties and maximum d33 = 201.2
pC/N and Kp = 36.8%.
Impact of calcium doping on structure, catalytic and conductive properties of lanthanum strontium iron oxide
Authors: Łańcucki Łukasz , Lach Radosław , Nieroda Paweł , Drożdż Ewa , Pasierb Paweł
Published: January 2020

A set of dense structure materials based on La0.5Sr0.5-xCaxFeO3 with
different amount of calcium (where x varies from 0 to 0.1) were prepared. It
was found that with calcium addition the hexagonal perovskite La0.5Sr0.5FeO3
structure is preserved and Ca2+ ions accommodate themselves easily in the
lattice. The sintered ceramics have homogeneous microstructure and uniform
grain size distribution with the average size which increases with Ca
addition. Electrical properties of the sintered materials determined by the
DC method revealed an increase in sample conductivity with Ca2+ doping. An
increase in structure stability with the increase of calcium addition was
also confirmed by the temperature-programmed studies.
O lugar de Peirce na história da lógica: um diálogo com a tradição frege/russelliana
Authors: Baggio Renan Henrique
Published: January 2020

O presente trabalho tem como intuito apresentar os estudos de Charles Sanders Peirce, assim como sua relevância para as investigações acerca da lógica e de sua natureza. Peirce deixou diversas contribuições para o estudo da lógica que parecem ter sido ofuscadas pelos trabalhos de pensadores enaltecidos pela tradição. Diante disso, nossos esforços visam demonstrar como Peirce desenvolveu, em certa medida ainda mais cedo, as questões levantadas por Frege, Russell e outros expoentes da lógica, além de ter trabalhado em teorias originais que elevam seus esforços à autenticidade. Para tanto, abordamos na primeira seção as duas vertentes de pensamento as quais compreendem a lógica enquanto linguagem universal e como teoria dos modelos, de modo a inserir a teoria peirciana em meio a essas abordagens. Na segunda seção analisamos alguns aspectos originais do pensamento peirciano e sua relevância para a teoria da lógica. Por fim, na terceira seção demonstramos os aspectos que permitem Peirce se equiparar aos teóricos consagrados da lógica, sobretudo Frege e Russell.
Tecnocracia e despolitização da esfera pública segundo Habermas: estudos de teoria crítica via racionalidade comunicativa
Authors: Guedes de Lima Francisco Jozivan
Published: January 2020

O objetivo deste artigo consiste em demonstrar o tratamento de Habermas acerca da racionalidade instrumental e tecnocrática e de seus impactos para a despolitização da esfera pública, tendo como ponto central a propositura do seu redimensionamento a partir da racionalidade comunicativa. Para Habermas, o projeto emancipatório da Teoria Crítica só pode ser eficaz caso se amplie a racionalidade em termos de uma ética do discurso a partir da qual as relações sejam ressignificadas para além de um direcionamento instrumental e o seu foco meramente estratégico seja reavaliado em termos de entendimento mútuo e cooperação/solidariedade.
A caixa de ferramentas conceituais de Richard Rorty: o uso de técnicas ad hoc
Authors: Silva Heraldo Aparecido
Published: January 2020

O propósito deste texto é evidenciar o uso de técnicas ad hoc na abordagem filosófica de Rorty. Em linhas gerais, um dos aspectos mais interessantes e criticados da filosofia neopragmatista rortyana concerne à sua polêmica estratégia de lidar com problemas metafísicos e epistemológicos, que consiste em deslocar todas as questões para o campo da política, da cultura e da moral. Esse recurso de substituição somente pode ser compreendido adequadamente no âmbito da anômala, provisória e soft metodologia filosófica de Rorty. Uma vez que a abordagem de Rorty é multifacetada, pois mobiliza autores, doutrinas e áreas de estudo diferentes, além de empregar várias técnicas ad hoc, restrinjo o estudo de seus instrumentos filosóficos, àquelas noções que são imprescindíveis tanto à compreensão da filosofia rortyana, quanto para a unidade desse artigo: argumento, recontextualização histórica, apropriação, narrativa e utilidade.
Antoine Lavoisier – Contributos para o conhecimento do metabolismo energético
Authors: Gomes Maria José Marques , Guedes Cristina Vitória De Miranda
Published: January 2020

Resumo O metabolismo energético constitui-se como uma área fundamental no ensino das Ciências da Nutrição (Animal e Humana). O comum dos cidadãos utiliza o termo “Caloria” e relaciona-o com alimentação e energia. Poucos saberão, no entanto, que para obter a energia a partir dos alimentos, no organismo ocorre uma forma de combustão idêntica à que ocorre numa fogueira! Ambas exigem a presença de O2, e geram CO2, H2O e calor. Hoje dispomos de equipamentos sofisticados para estudar o metabolismo energético, utilizando metodologias de calorimetria direta e indireta. Este conhecimento permite-nos elaborar dietas adequadas a animais e pessoas e programar equipamentos de fitness que informam quantas calorias estamos a “gastar”. Foi a partir da descoberta de Priestley, de que o oxigénio estava envolvido na combustão, que no final do século XVIII, Antoine Lavoisier formulou a hipótese de que “a respiração nos animais é também uma forma de combustão” e que desenvolveu o primeiro calorímetro – o calorímetro de gelo.Palavras-chave: Abstract The study of Nutrition Science necessarily passes through the energy metabolism approach. Common people use the word “Calorie” and associate it with food consumption and energy. Less people will be aware that, to obtain energy from food, a form of combustion similar to that in a fire, takes place in the organism! In both, the process requires the presence of oxygen, and generates CO2, H2O and heat. Today we have sophisticated equipment to study the energy metabolism, using direct and indirect calorimetry methodologies. And such knowledge allows us to design appropriate diets for animals and people, and program fitness equipment that tells us how many calories we are "burning". Using Priestley’s earlier discovery that oxygen is involved in burning, at the end of the eighteenth- century Lavoisier hypothesized that "breathing in animals is also a form of combustion and developed the first calorimeter – the ice calorimeter. This work intends to recall the pioneering work of Antoine Lavoisier and its contribution to the knowledge of energy metabolism. Keywords: Antoine Lavoisier; nutrition; calorimetry; metabolism
O Uso da História da Química no Ensino de Química: A Visão de Licenciandos em Química
Authors: Espir Iago Ferreira , Epoglou Alexandra , Marques Deividi Marcio
Published: January 2020

ResumoA História da Química (HQ) tem sido considerada um recurso para as aulas de Química no Brasil, porém muitos professores e licenciandos dizem não terem capacitação ou interesse para incorpora-la à prática docente, criando um paradoxo. Com isso surgem alguns questionamentos: A HQ é importante para formar o professor? E para os estudantes da Educação Básica? Assim, surgiu o presente trabalho, com o objetivo de identificar a importância que licenciandos em Química de uma universidade federal, que cursavam a disciplina História da Química no ano de 2016 dão à disciplina, observando o que entendem pelo tema, quão importante é para sua formação e para o ensino de Química e como eles acham conveniente incorpora-la à prática. Baseados em estudos e nos documentos oficiais, buscou-se entender a importância que dão para a HQ na formação do profissional e do aluno de Ensino Médio. Para isso, foi feito um acompanhamento das aulas da turma durante todo o curso, observando as aulas e as atividades realizadas por eles. Palavras-chave: História da Química; ensino de Química; pesquisa com alunos. Abstract The History of Chemistry (HC) has been considered a resource for chemistry classes in Brazil, but many teachers and graduates say they lack the capacity or interest to incorporate it into teaching practice, creating a paradox. With this come some questions: Is the HC important to train the teacher? And for the students of Basic Education? Thus, the present paper, with the objective of identifying the importance that graduates in Chemistry of a federal university, who studied the discipline History of Chemistry in the year of 2016 give to the discipline, observing what they understand by the subject, how important it is for their training and for the teaching of Chemistry and how they find it convenient to incorporate it into practice. Based on studies and official documents, it was sought to understand the importance they give to the HC in the formation of the professional and the student of High School. For this, it was made a follow-up of the classes of the class throughout the course, observing the classes and the activities carried out by them. Keywords: History of Chemistry; Chemistry Education; research with students.
A história das doenças e dos saberes médicos nos livros didáticos brasileiros de História
Authors: Eugênio Alisson
Published: January 2020

ResumoNesse artigo será apresentado o resultado de uma pesquisa preliminar sobre a abordagem dos temas do campo de estudos da história da medicina, da saúde e das doenças nos livros didáticos brasileiros de História, para saber até que ponto eles foram incorporados aos conteúdos de tais livros e como eles foram abordados. Palavras-chave: livros didáticos de História, história da medicina, da saúde e das doenças, Brasil.Abstract This article will present the results of a preliminary research on the subjects of the field of study of the history of medicine, health and diseases in Brazilian textbooks of History, in order to know to what extent they were incorporated into the contents of such books and as they were addressed. Keywords: brazilian textbooks of history, history of medicine, health and diseases, Brazil.
DISCLOSURE NA SAÚDE SUPLEMENTAR: Uma análise sob a ótica dos beneficiários de planos de saúde
Authors: Da Silva Cunha Rosicleide Nascimento , Raulino Jácome Marilia Augusta , Saeger Márcia Maria De Medeiros Travassos , Andrade Tabira De Souza
Published: January 2020

Este trabalho analisou o disclosure na saúde suplementar sob a ótica dos beneficiários dos planos de saúde. Para tanto, se utilizou um survey elaborado pelos autores, composto por 03 partes: I – caracterização dos respondentes, II – Perfil do respondente na saúde suplementar e III – Percepção do disclosure.  Após o pré-teste e aplicação, se deu a análise dos dados mediante a frequência das respostas e a utilização das médias para a comparação das respostas entre os grupos de beneficiários, por plano de saúde, principalmente relacionado à expectativa quanto ao Índice de Sustentabilidade no Mercado (IDSM). Os resultados indicam que as expectativas dos beneficiários podem ser consideradas irrealistas, uma vez que eles superdimensionam a situação financeira de suas OPS. Os beneficiários de planos de saúde atribuem um alto grau de importância às informações financeiras e contábeis, contudo, demonstraram insipiência no aspecto de acesso a estas. Esta insipiência se confirma quando analisada de forma comparativa com outras questões, em que 67% dos beneficiários afirmaram nunca acessarem o site da ANS, e ainda, 70% do total de participantes da pesquisa possuem plano de saúde há pelo menos 5 anos, o que implica em uma preocupação quanto à necessidade de se buscar novas formas ou canais de comunicação com o público de beneficiários.
GOVERNAMENTALIDADE, NEOLIBERALISMO E A CULTURA ORGANIZACIONAL COMO FERRAMENTA DE CONTROLE
Authors: Silva Daiana Sarmento , Enoque Alessandro Gomes , Borges Alex Fernando
Published: January 2020

Este ensaio teórico tem, por objetivo principal, estabelecer uma relação entre a racionalidade neoliberal e o advento da gestão da cultura organizacional como uma ferramenta de controle indireto das condutas individuais, a partir da ideia de liberdade, que instaura uma nova governamentalidade empresarial (Foucault, 2008b). Para tanto, retomamos as mudanças históricas provocadas pela crise econômica da década de 70, que deram início a era neoliberal, com o intuito de analisar, a partir dos conceitos de Foucault (2008a, 2008b) de governamentalidade e do conceito de racionalidade (Dardot & Laval, 2016), o conceito de cultura organizacional.
Os 55 anos do currículo da Psicologia PUC-SP
Authors: Gonçalves Maria Da Graça Marchina , Ribeiro Marilda Pierro de Oliveira , Bock Ana Mercês Bahia
Published: January 2020

O objetivo deste artigo foi traçar um panorama histórico do Curso de Graduação em Psicologia da PUC SP, por meio da descrição e análise dos diferentes currículos que se sucederam, tomando-se como fio condutor desta narrativa o modo como neles se concebeu e concretizou a formação do psicólogo, respondendo aos desafios colocados pela realidade social, educacional e política brasileira. Algumas reformas curriculares ocorreram a partir de mudanças na legislação brasileira relativa ao ensino em geral e em relação ao ensino superior, em particular; outras em função da legislação específica relativa à formação de psicólogo; e outras motivadas pelo princípio de revisão e aprimoramento constantes que tem motivado reavaliações de nossa prática. Utilizaram-se diferentes fontes de dados. Documentos oficiais e leis, bem como a memória dos autores que participaram dessa história de diversas formas e em diferentes momentos. Destaca-se a participação sistemática e intensa do corpo docente e discente nos processos de avaliação e elaboração das propostas curriculares.
Rumo aos 25 anos de história do Programa de Educação Tutorial (PET/MEC/SESu) na PUC-SP
Authors: Kahhale Edna Maria Severino Peters , Gattai Maria Cristina Pinto , Kato Regina Aiko Fukumaga , Paparelli Renata , Tosta Rosa Maria
Published: January 2020

O Programa de Ensino Tutorial constitui-se em uma modalidade de investimento acadêmico em cursos de graduação com compromissos epistemológicos, éticos e sociais. Voltado para Instituições de Ensino Superior (IES) públicas e particulares em nível nacional, com objetivo de apoiar as atividades acadêmicas, integrando ações de ensino, pesquisa e extensão, através de grupos de aprendizagem coordenados por um tutor. Criado em 1979, esteve, durante 20 anos, sob a gestão do Capes e, a partir de 2000, passou a ser vinculado à Secretaria de Educação Superior – SESu/MEC. Na PUC-SP, o programa teve início em agosto de 1995 no curso de Psicologia. Este artigo apresenta o resgaste histórico desses quase 25 anos de conquistas da trajetória do PET/MEC/SESu do curso de Psicologia da PUC-SP, apresentando os cinco projetos que compuseram sua história desde a implantação. Para tanto, realizamos uma pesquisa narrativa, que inclui biografias, histórias de vida, autobiografias, relatos e depoimentos.
Saúde mental em rede: o curso de Psicologia na articulação entre a universidade e o Sistema Único de Saúde
Authors: Vicentin Maria Cristina Gonçalves , Rosa Elisa Zaneratto , El Id Katia , Sereno Deborah , Kahhale Edna Maria Severino Peters , Gomes José Agnaldo , Gonçalves Maria Da Graça Marchina
Published: January 2020

Este artigo apresenta alguns elementos analíticos do percurso e dos efeitos dos processos de integração ensino-serviço na formação em Psicologia na Pontifícia Universidade Católica de São Paulo (PUC-SP), especialmente no campo da atenção em saúde mental no âmbito do Sistema Único de Saúde (SUS), por meio da parceria com o território sanitário da Freguesia do Ó/Brasilândia, do município de São Paulo. Tal processo foi intensificado e qualificado pelos Programas de Reorientação da Formação Profissional em Saúde e Educação pelo Trabalho em Saúde. Para tanto, apresentamos uma visão geral das atividades desenvolvidas e focalizamos alguns desdobramentos do trabalho: o aprimoramento da perspectiva de trabalho territorial e em rede pelos núcleos de formação profissional comprometidos com o campo das políticas públicas em saúde e saúde mental; a implantação da Gestão Autônoma da Medicação como estratégia de cuidado territorial em saúde mental; a articulação clínica-escola e território. Este trabalho de cogestão entre universidade e serviços de saúde em suas diferentes dimensões - ensino, pesquisa e extensão - contribui simultaneamente para a formação profissional em saúde e a qualificação da atenção e do processo de trabalho em saúde, formando estudantes e profissionais para o SUS.
Graduação e Pós-Graduação em Psicologia na PUC-SP: mútua contribuição para o compromisso social na pesquisa e qualificação docente
Authors: Bassani Marlise A.
Published: January 2020

O artigo objetiva apresentar as mútuas relações e contribuições entre os Programas de Pós-Graduação stricto sensu e a Graduação em Psicologia da PUC-SP, para a construção do conhecimento da Psicologia como ciência, profissão e interdisciplinaridade. A fim de subsidiar a proposta, apresenta-se uma breve retomada histórica da implantação da Pós-Graduação na PUC-SP, a memória dos Programas de Psicologia: Social (1972), Clínica (1976) e Experimental - Análise do Comportamento (1999), e do Programa de Educação: Psicologia da Educação (1969) - um dos três primeiros da PUC-SP. Acrescentam-se dois exemplos de trabalhos pioneiros iniciados na, então, Faculdade de Psicologia e incorporados à Pós-Graduação da PUC-SP que se mantêm como referências nacional e internacional: o Laboratório de Estudos e Intervenções sobre o Luto - LELu, iniciativa da professora Maria Helena Pereira Franco, e a inserção da Psicologia Ambiental articulada à Saúde, pela professora Marlise Aparecida Bassani. Enfatiza-se o movimento de contribuições de docentes da Graduação em Psicologia titulados pelos Programas de Pós-Graduação da Universidade e a integração Pós-Graduação – Graduação na formação de profissionais de Psicologia, pesquisadores e docentes comprometidos com as questões e transformações sociais, na promoção de diálogos mais articulados com outras áreas do Saber, para avanços da ciência psicológica.