bluuebunny/crossref_metadata_2025 huggingface dataset:
Interference Avoidance Using Dynamic Frequency Reuse For LTE-A System
Authors: Reza Asif , Rafiqul Islam Md , Bin Abdullah Khaizuran , Raisa Farah
Published: July 2018

To meet the increasing demand for spectrum in communication system, Long Term Evolution (LTE) system has been proposed. It allowed users to use a new and much wider spectrum comparing to the other previous technologies. To utilize the full capacity of the LTE system Frequency Reuse (FR) has been adapted. It is a promising aspect of transmission of high rate data stream with better system capacity and fading immunity in the modern Long-Term Evolution-Advanced (LTE-A) system. Fractional Frequency Reuse (FFR) is the commonly used frequency reuse technique to increase the system capacity. But the problem is, with introduction of FR, it also increases the Inter Cell Interference (ICI) of the system. The out of cell interference coming from the neighbouring e-NodeBs (eNB) as a result of using the same frequency band and they act as an interference source. This ICI decreases the system capacity, resulting in hampering of communication, browsing and in worst case no connection at all. This condition highly affects the users under a cell specially those who are located in the cell edge areas. To take care of this issue an approach called Dynamic Frequency Reuse scheme has been proposed in this paper to mitigate the interference thus increasing the system capacity. This scheme uses continuous assessment of resource allocation and choosing the best sub-band for the user with least interference. There is a sequential order to be maintained for the users with using off minimum Base Station (BS) transmit power. The cell edge area users are the primary concern in terms of increasing their service quality. MATLAB simulation software has been used to justify the theory that the proposed scheme is capable increase the capacity of the cell edge areas as well as the cell centre area user. The results achieved from the simulation also indicates that the proposed model can enhance the system capacity comparing to the existing FFR scheme.
Outdoor Illegal Parking Detection System Using Convolutional Neural Network on Raspberry Pi
Authors: Kit Ng Chin , Nyean Cheong Soon , Wen-Jiun Yap Wen , Loo Foo Yee
Published: July 2018

This paper proposes a cost-effective vision-based outdoor illegal parking detection system, iConvPark, to automatize the detection of illegally parked vehicles by providing real-time notification regarding the occurrences and locations of illegal parking cases, thereby improving effectiveness of parking rules and regulations enforcement. The iConvPark is implemented on a Raspberry Pi with the use of Convolutional Neural Network as the classifier to identify illegally parked vehicles based on live parking lot image retrieved via an IP camera. The system has been implemented at a university parking lot to detect illegal parking events. Evaluation results show that our proposed system is capable of detecting illegally parked vehicles with precision rate of 1.00 and recall rate of 0.94, implying that the detection is robust against changes in light intensity and the presence of shadow effects under different weather conditions, attributed to the superiority offered by CNN.
Access Channel Selection for WLAN using Fuzzy Expert System
Authors: Maqhat Bakeel , Dani Baba Mohd , Ab Rahman Ruhani , Saif Anwar
Published: July 2018

The tremendous increase in user demands for multimedia applications with its various quality of service (QoS) requirements has become essential for the operators to accommodate the demand for real-time services in IEEE 802.11 WLAN network. Scheduling mechanism is one of the challenging issues still open for research to fully support the various QoS requirements. In this paper, scheduling scheme is proposed to manage the channel access parameter between competitive nodes. An embedded fuzzy expert system is used to dynamically allocation these parameters to the competitive stations. The simulation results show that the proposed algorithm manages to optimize the overall system utilization.
Life Cycle Analysis of Operational Energy in Office Projects Toward Sustainability Practices in the Malaysian Construction Industry
Authors: Moayedi Farzaneh , Amila Wan Abdullah Zawawi Noor , Shahir Liew Mohd
Published: July 2018

Global warming mitigation is used as a requisite key to promote approaches and sustainable policies in developing countries that aim to minimize the level of carbon emission in built environment. In the past few years, energy demand has grown enormously in Malaysia. CO2 emission from energy consumption, mainly from electricity is a stark condemnation of commercial sector. Building operational energy particularly the thermal aspect, is the dominant factor that used to be highlighted and investigated due to the fact that it is the main proportion of operational energy consumption in buildings. The rate of energy dissipation in building components depends on design and environmental conditions. Accordingly, actions need to be taken in order to promote the quality of buildings in terms of heat exchanges, which can lead to a signiﬁcant energy saving. Using of appropriate thermal insulation is effective way to diminish greenhouse gas emissions by reducing energy consumption. Therefore, the aim of the study is to investigate and determine the total amount of energy consumption from an office building. For reliability purposes, energy consumption from operation of baseline building was compared with the eco-friendly existing office building. Results show that, after implementation of sustainable solutions in the case study, operational energy consumption was successfully reduced to a grate extend.
Construction Cost and Carbon Emission Computational Model for Office Buildings in Malaysia
Authors: M. A. Klufallah Mustafa , Othman Idris , Fadhil Nuruddin Muhd , Faris Khamidi Mohd
Published: July 2018

A novel embodied carbon emission and construction cost computational optimization model has been developed based on evolutionary Genetic Algorithm (GA) for purpose built offices in the Malaysian construction industry. The GA evaluation was lack of implementation in addressing financial and environmental performances for construction projects in Malaysia. Therefore, the office project was evaluated through the adoption of ISO 14040 framework and evolutionary GA. The model was designed to provide alternative optimal design solutions for office buildings, which can be used at the early project planning and design stages. The assessment of embodied emissions was limited to pre-construction phase with “cradle to site” boundary. The model was tested statically to confirm the accuracy of the generated results. It provides an assessment model for managing carbon emission based on evaluation of environmental and financial performancesand it was validated by an application to an office building and the findings  obtained  suggest  that the it would be suitable for use in practice.
Fiber Surface Modification; Characterization of Rattan Fiber Reinforced Composite
Authors: Elvistia Firdaus Flora , Dachyar M
Published: July 2018

Increasing the awareness of global warming and the depletion of petroleum resources had made many researchers focuses on using natural materials such as rattan. Its an edible fibers  are prepared to reinforce matrix yielding composite products within the aid of epoxy based resin  and hardener which also perform  as catalyst. The fibres are previously conducted an alkali treatment, this was considered to enhance the cohessiveness of fibers to matrix. Silane and dimethylethanolamine (DMEA) as an adhesives booster is respectively added to the composite formula. The specific purpose of this research is to know the influence of addition of Silane and  DMEA to the final properties of composite; flexural, tensile strength, elongation at break, hardness, and thermal. From the test results it is found that Silane keeps the matrix amorphous, while the addition of DMEA formed crystalline polymer. The ultimate property of the composites are found also depends on fiber woven pattern.
Supplier Selection on Rendement Rate of Patchouli Leaf
Authors: Hanum Bethriza , Izzati Titia , Cakravastia Andi
Published: July 2018

The aim of research is to design the model of rendement rate by considering the criteria of patchouli leaf and designing a good supplier selection model to maximize the company profit by considering the acceptance of the patchouli oil rendement rate. The selection of suppliers discussed is to consider the quantity of goods offered by suppliers, demand, budget and acceptance limitation of  rendement rate. To overcome these limitations, it is necessary to develop a supplier selection model that takes into consideration the quantity limitation of goods offered by the supplier and the acceptance of the rendement rate by using Linear Programming (LP) method. The result of the research shows that the determination model of the rendement rate developed to determine the percentage of Rendement Rate (RR) of each raw material supplied by the supplier so that the company can know the quality of patchouli leaf based on the type of patchouli leaf. The analysis result of numerical sample calculation shows that the selected supplier is not a supplier with good patchouli leaf criteria, the analysis result of parameter changes in oil demand and budget indicate that when oil demand is increased over the benchmark data, the model output is insensitive, but when demand is lowered below the benchmark data, the model output looks sensitive.
Effect of the Dietary Fat Sources on Performance, Liver Fatty Acid Composition and Meat Cholesterol Content in Broiler
Authors: Khatun Jannatara. , Chwen Loh Teck , Akit 1 Henny , Ling Foo Hooi , Mohammad Rosfarizan
Published: July 2018

A study was conducted to evaluate the effect of feeding diet containing palm oil (PO) and sunflower oil (SO) and their combination on bird performance, liver fatty acid profile and meat cholesterol content of broiler. A total of 144 day-old broiler chicks (Cobb) randomly assigned into four dietary treatments and fed for six weeks. The dietary treatments were T1, 6% PO (control); T2, 4% PO + 2% SO; T3, 2% PO + 4% SO; and T4, 6% SO. The body weight gain increased and feed conversion ratio (FCR) reduced with the increasing level of unsaturated fatty acid sources oil (SO) compared to control group (PO). Significantly higher (P<0.05) overall daily body weight gain and lower FCR were found in broilers fed dietary treatments T3 compared to other treatments. However, no differences (P<0.05) were found in daily body weight gain and FCR among the two combination of oil and SO alone. Dietary treatments influence the fatty acid composition of liver and increasing the dietary SO decreased the level of C16:0, C18:0, C18:1n-9, SFA and MUFA and increased the C18:2n-6, UFA: PUFA, UFA: SFA and PUFA: SFA. Birds fed PO had higher cholesterol concentration in meat which was decreased by supplementation of SO in broiler diet. However, cholesterol concentration was not differed in meat among the dietary SO and combination of SO and PO. It could be concluded that supplementation of a combination of PO and SO in broiler diet increased performance, altered the fatty acid composition of liver tissue and decreased cholesterol content of meat which may have a favorable impact on consumer’s health.
Developing Information Services for Visually-Impaired Students in Indonesia
Authors: E. Variant Anna Nove , Dessy Harisanty Dessy , Puspitasari Srirahayu Dyah , Endang Fitriyah Mannan Endang , Sua’daa Irfana Maisyatus
Published: July 2018

This study aims to acknowledge the information needed by visually-impaired students in Indonesia. The results of this study will be used as a basis to develop library services that can be useful for visually-impaired students. The research was conducted in Foundation for Blind Handicapped Persons (YPAB) in Surabaya and involved 30 visually-impaired students ranging from 11-20 years of age. The research was conducted using questionnaires and interviews at YPAB. From the results it can be known that all students regularly visit the library 1-4 times a week, they know about the library services in the school from the teachers and the most widely used service is the general collection service in braille format. The most frequent activities done by students are chatting and discussing, whereas browsing is rarely because there is no internet connection and the number of computers is limited. Information available in the library includes information for completing schoolwork and fiction books in the form of braille. The recommendations from research results include: improving information services through teacher librarians and provide information and internet literacy training for students and teachers.
Performance Analysis and Testing of Aftermarket Filters
Authors: A Srinivaas , R Vishnu
Published: July 2018

Aftermarket segment is one of the promising and growing section in automobile industry. The popularity of this section is due to the low cost and high replacement rate. Best filters among many will survive in the market. Different Filter manufacturers develop filters for same purpose but varies in their construction. There are a wide variety of aftermarket performance filters for the same type of OEMs. They vary in their brand name, filter area, filter medium, price, service life and method of install. The presence of increased number of aftermarket performance filters has prompted automotive enthusiasts to replace the OEM filter for the same purpose available in lower cost. The paper discusses about the testing procedures to be done to compare the performances both the brands (OEM and Aftermarket filters). All the experiments were conducted at PSG institute of science & Technology Coimbatore. This study shows how much an aftermarket filter varies from that of OEM. The performance of both OEMs (BOSCH and FLEETGUARD) and Aftermarket filter(UCAP) are evaluated by pressure drop, filter efficiency, media strength, porosity tests.
Improving the Evacuation Time for 8-Story Office Building Using Pathfinder Simulation
Authors: Hadi Sutrisno Himawan , Amiruddin Jafar , . Triyono
Published: July 2018

The evacuation time during fire becomes the determining factor for survival and building occupants often ignore the knowledge and the correct way to evacuate during fire. This lack of knowledge increases panics among the evacuees and causes more casualties. By using the pathfinder simulation, the simulated evacuation time is compared with the real evacuation time to get the recommendation for the improvement of evacuation time to reach the assembly points. The improvement of the evacuation time is done by eliminating the time difference between the simulated evacuation time and the real evacuation time. This study may benefit the method to increase the evacuation ability and to improve the sterilization of the evacuation routes until the assembly points.
A Building Condition in Influencing the Walkable Environment in Traditional Street of Melaka Historical City
Authors: Haslina Ja’afar Nor , . .
Published: July 2018

Street as a social arena plays an essential role in representing the character of a city, thus it is important to create a street with a friendly walkable environment. Therefore, this study is aimed to determine the heritage building conditions that contribute towards the walkable environment in traditional streets in Melaka Historical City, Malaysia. The places comprised of Jalan Tukang Besi, Jalan Tukang Emas, and Jalan Tokong. Questionnaire survey, in-depth interview with the street users, observation, and document review on historical significant were conducted to achieve the objective of this study. The findings demonstrated that a good building condition is essential in order to encourage a street with walkable environment. The findings inform designers and planners of the importance to preserve our heritage buildings in street design and development.
Effectiveness of Natural Coagulant in Coagulation Process: A Review
Authors: Hariz Amran Amir , Syamimi Zaidi Nur , Muda Khalida , Wai Loan Liew
Published: July 2018

Natural coagulants have been increasingly popular in the past few years due to its benefits and the fact that it resolves most of the associated problems when using chemical coagulants. Plant-based natural coagulants perform coagulation either by polymer bridging or charge neutralization, it can be extracted from various plant components. Concerted research and development efforts have been conducted in discovering new plant species and constituents that can be used as natural coagulants, which further boosting the effectiveness of existing plant-based natural coagulants.  The objective of this paper is to provide a mini review on studies done over the span of ten years regarding plant-based natural coagulants. This paper also includes advantages and disadvantages of natural coagulants prior to identify several potential research gaps to provide platform towards the need of further study.
Comparative Study between Linear-Interpolation and Stress-Block Methods of Composite Design Using Cold-Formed Steel Section
Authors: M. Lawan M , N. Shek P , M. Tahir M
Published: July 2018

For decades, Hot Rolled Steel (HRS) section was in use in construction of buildings and bridges. The simple reason is that the use of HRS section in composite systems is well established by standard rules and their design necessities as provided in the codes. In this paper, the use of doubly oriented back-to-back Cold-Formed Steel (CFS) section coupled with bolted shear connectors in composite floor system was demonstrated. The bolted system of shear connector provides an alternative to headed stud shear connector with CFS section as welding of the stud connector is practically not feasible on CFS section because of its thinness nature. The loading system used was four-point bending test to determine the flexural strength capabilities of the composite floor system. The resulting composite floor system has proven to provide adequate strength and stiffness properties under the applied loads. The results have shown that the theoretical value of flexural capacities calculated agrees reasonably well with the experimental values. In conclusion, the composite floor system can be used in small and medium size buildings, as well as in light weight construction industries.
Drainage-Related Risks for Operation and Maintenance of Tunnelling Projects: an Overview
Authors: Siang Lee Yong , E Mohamed Ghazali Farid
Published: July 2018

The importance of drainage-related risks associated with tunnelling projects requires special attention from tunnel operators to analyse and manage the risks. The optimal management of drainage-related risks in tunnelling projects involves multiple objectives such as flood management, maximisation of design capacity of drainage contamination and optimisation of overall drainage system. This paper focuses on identifying the key drainage-related risks that have great potential of occurring in highway tunnelling projects. The outcomes of this research are developed based on findings obtained from extensive literature review and case studies that have been conducted by a few researchers. The identified drainage-related risks will be reviewed in this paper. All these risks can be included as key information when drafting a new risk management plan or to be added into the existing risk management plan in order to enhance the operation and maintenance of tunnelling projects.
Mechanical and Durability Properties of Lightweight Foamed Concrete Containing Palm Kernel Shell
Authors: Awang Hanizam , Adeshina Dauda Adebayo , Arminda Wenny
Published: July 2018

The research project aimed to investigate the effect of palm kernel shell (PKS) on the mechanical strength and durability of foamed concrete at the level of 10% to 60%. The samples were designed and prepared having a dry density of 1600 kg/m3with a binder to filler ratio of 1:1.2. Hardened foamed concrete samples were subjected to air cured and tested at the age of 7, 14, 28, 56 and 90 days. Mechanical performance of the PKS foamed concrete was assessed in term of its compressive strength. Durability properties namely water absorption and vacuum porosity were investigated. The result shows that the addition of PKS to lightweight foamed concrete up to 30% significantly improve the mechanical properties and the durability of the foamed concrete.
Reweaving the Urban Fabric of the Historic Riverfront Townscape of Masjid India, Kuala Lumpur
Authors: Zafarullah b Mohamad Rozaly Mohamad , Mohmad Shukri Sharyzee , Syala Abd. Latip Nurul , Abdullah Alias
Published: July 2018

This study aims to examine the state of decline in the art of relationship between the urban river and all other elements in the historic townscape using principles of the Integrative Theory with the purpose to identify what binds townscape together and gives its sense of place and what causes the rupture. A qualitative-method case study was conducted in the Masjid India Riverfront District involving a visual survey, townscape appraisal, and content analysis on the morphology of the historic riverfront. The results show that the rupture between townscape and river as context is a product of poor walkability in a riverfront devoid of any setting for meaningful human activities, and the key to reweave the historic townscape is to rediscover what gives its meaning and sense of place.
Measurement of plasma electron temperature and density by using different applied voltages and working pressures in a magnetron sputtering system
Authors: N. Mazhir Sabah , K. Khalaf Mohammed , K. Taha Sarah , K . Mohsin Hussein
Published: July 2018

This paper discusses applying different voltages and pressure in the presence of silver target and argon gas to produce plasma. Home-made dc magnetron sputtering system was used to produce glow discharge plasma. The distance between two electrodes is 4 cm. Gas used to produce plasma is argon that flows inside the chamber with flow rate 40 sccm. Intensity of spectral lines, electron temperature and electron density were studied. The results show that the intensity of spectral lines increases with the increase of the working pressure and applied voltage. Electron temperature increases by the increase of applied voltage but decreases with the increase of working pressure, while electron density decreases with the increase of applied voltage and increases with the increase of working pressure. This research demonstrates a new low cost approach to start producing high corrosion resistance materials.
Performance and emission characteristics of turbocharged diesel engine fueled with palm biodiesel blends
Authors: Yang Byungmo , A. Kalam M , Cho Haengmuk
Published: July 2018

The exhaustion of fossil fuels and sharp rise in crude oil prices has led to the development of various alternative fuels. Alternative fuels are a necessity to meet rising energy consumption rates and to ensure eco-friendly growth. Alternative fuels that can be regenerated, are sustainable and have clean burning capacity to help promote an eco-friendly development. Whereas there have been various ideas and technologies relating to biodiesel as an alternative fuel, these tend to be restricted to the distant future insofar as compression-ignition engines are concerned. Biodiesel, produced by reacting triglycerides which are the main component of animal or plant-based fatty acids with methanol, is known to be an eco-friendly alternative fuel that can take the place of conventional petroleum diesel. In the present study, biodiesel (palm oil) was mixed at a certain ratio with commercially sold diesel, then introduced into a TCDI engine which was run at low load conditions for engine performance and exhaust gas measurement. Both engine output and torque were reduced, and fuel consumption increased to make up for the reduction in output. There were slight reductions in NOx and CO2 emissions, but changes in CO and HC emissions were negligible.
A New 4-D Chaotic System with Hidden Attractor and its Circuit Implementation
Authors: Sambas Aceng , Mamat Mustafa , Vaidyanathan Sundarapandian , Mohamed Muhammad , Sanjaya Mada
Published: July 2018

In the chaos literature, there is currently significant interest in the discovery of new chaotic systems with hidden chaotic attractors. A new 4-D chaotic system with only two quadratic nonlinearities is investigated in this work. First, we derive a no-equilibrium chaotic system and show that the new chaotic system exhibits hidden attractor. Properties of the new chaotic system are analyzed by means of phase portraits, Lyapunov chaos exponents, and Kaplan-Yorke dimension. Then an electronic circuit realization is shown to validate the chaotic behavior of the new 4-D chaotic system. Finally, the physical circuit experimental results of the 4-D chaotic system show agreement with numerical simulations.
Can upper limb taping or exercises improve hand function, writing speed and self-perception of performance in adolescent school children?
Authors: Memon Hiba , Shimpi Apurv , Shyam Ashok , Sancheti Parag
Published: July 2018

Background

The majority of students spend time in writing, which is a prime performance measure in examinations. Enhancement in handwriting should benefit students to attain better academic performance.

Objective

To assess the effectiveness of taping and exercises on hand function, writing speed, self-perception of writing and to compare these techniques.

Methods

A randomized control trial was conducted using cluster sampling in adolescent children across four schools in an urban city. A 4-week intervention study was conducted on 123 students divided into taping, exercise and control groups. Outcome measures were grip strength, pinch strength, 12-min writing speed test and the Writer Self-Perception Scale (WSPS). For intra-group analysis, a paired t-test was used for parametric values and the Wilcoxon signed rank test was used for non-parametric values. For inter-group analysis, one-way analysis of variance (ANOVA) for parametric values and the Kruskal-Wallis test for non-parametric values was used.

Results

The taping group showed a significant improvement in grip strength (1.79 kg; p = 0.00), pinch strength [1.67 lb (757.4 g); p = 0.00] and writing speed (39.77 words/12 min; p = 0.00). The exercise group showed significant improvement in grip strength (2.09 kg; p = 0.00), pinch strength (1.28 lb; p = 0.00), writing speed (28.38 words/12 min; p = 0.00). In the control group, there was a significant increase in pinch strength (1.023 lb; p = 0.01) and writing speed (12.94 words/12 min; p = 0.02). Inter-group analysis showed significant difference in writing speed (p = 0.002) and grip strength (p = 0.00). There was no significant difference in perception (p = 0.071).

Conclusion

Taping and exercise are equally effective for enhancement of hand function, writing speed and self-perception in adolescent school children.
Visual Temporal Contrast Sensitivity in the Behaving Mouse Shares Fundamental Properties with Human Psychophysics
Authors: Umino Yumiko , Pasquale Rose , Solessio Eduardo
Published: July 2018

The mammalian visual system has a remarkable capacity to detect differences in contrast across time, which is known as temporal contrast sensitivity (TCS). Details of the underlying neural mechanisms are rapidly emerging as a result of a series of elegant electrophysiological studies performed largely with the mouse as an experimental model. However, rigorous psychophysical methods are necessary to pair the electrophysiology with temporal visual behavior in mouse. The optomotor response is frequently used as a proxy for retinal temporal processing in rodents. However, subcortical reflexive pathways drive the optomotor response rather than cortical decision-making areas. To address this problem, we have developed an operant behavior assay that measures TCS in behaving mice. Mice were trained to perform a forced-choice visual task and were tested daily on their ability to distinguish flickering from nonflickering overhead lights. Correct responses (Hit and Correct Rejections) were rewarded. Contrast, temporal frequency, and mean illumination of the flicker were the independent variables. We validated and applied the theory of signal detection to estimate the discriminability factor (d´), a measure of performance that is independent of response bias and motivation. The empirical contrast threshold was defined as the contrast necessary to elicitd´ = 1 and TCS as the inverse of the contrast threshold. With this approach, we established in the mouse a model of human vision that shares fundamental properties of human temporal psychophysics such as Weber adaptation in response to low temporal frequency flicker and illumination-dependent increases in critical flicker frequency as predicted by the Ferry–Porter law.
Acute Effects of Drugs onCaenorhabditis elegansMovement Reveal Complex Responses and Plasticity
Authors: Spensley Mark , Del Borrello Samantha , Pajkic Djina , Fraser Andrew G
Published: July 2018

Many drugs act very rapidly — they can turn on or off their targets within minutes in a whole animal. What are the acute effects of drug treatment and how does an animal respond to these? We developed a simple assay to measure the acute effects of drugs on C. elegans movement and examined the effects of a range of compounds including neuroactive drugs, toxins, environmental stresses and novel compounds on worm movement over a time period of 3 hr. We found a wide variety of acute responses. Many compounds cause rapid paralysis which may be permanent or followed by one or more recovery phases. The recoveries are not the result of some generic stress response but are specific to the drug e.g., recovery from paralysis due to a neuroactive drug requires neurotransmitter pathways whereas recovery from a metabolic inhibitor requires metabolic changes. Finally, we also find that acute responses can vary greatly across development and that there is extensive natural variation in acute responses. In summary, acute responses are sensitive probes of the ability of biological networks to respond to drug treatment and these responses can reveal the action of unexplored pathways.
Measuring Genetic Differentiation from Pool-seq Data
Authors: Hivert Valentin , Leblois Raphaël , Petit Eric J , Gautier Mathieu , Vitalis Renaud
Published: July 2018

The advent of high throughput sequencing and genotyping technologies enables the comparison of patterns of polymorphisms at a very large number of markers. While the characterization of genetic structure from individual sequencing data remains expensive for many nonmodel species, it has been shown that sequencing pools of individual DNAs (Pool-seq) represents an attractive and cost-effective alternative. However, analyzing sequence read counts from a DNA pool instead of individual genotypes raises statistical challenges in deriving correct estimates of genetic differentiation. In this article, we provide a method-of-moments estimator of FST for Pool-seq data, based on an analysis-of-variance framework. We show, by means of simulations, that this new estimator is unbiased and outperforms previously proposed estimators. We evaluate the robustness of our estimator to model misspecification, such as sequencing errors and uneven contributions of individual DNAs to the pools. Finally, by reanalyzing published Pool-seq data of different ecotypes of the prickly sculpin Cottus asper, we show how the use of an unbiased FST estimator may question the interpretation of population structure inferred from previous analyses.
Deslocamentos do imperativo visual em recortes do feminino
Authors: Jardim Luciana Abreu
Published: July 2018

Possíveis aproximações entre Ética e Literatura deveriam ser pensadas a partir dos desdobramentos propostos pelo questionamento da metafísica da presença, de Da gramatologia, ponto central do pensamento derridiano. Para escrever para além da metafísica da presença, abalada por Jacques Derrida, deve-se sair da saturação de visibilidade contemporânea, de modo a buscar novas experiências com a linguagem. A modalidade linguística do semiótico, por exemplo, de acordo com o modelo linguístico de Julia Kristeva (A revolução da linguagem poética), propõe uma experiência na qual aspectos da vida escrita sejam capazes de produzir sentidos sutis, sempre em copresença com a modalidade do simbólico. Nesse contexto teórico, alguns fragmentos textuais de Clarice Lispector, os quais podem ser lidos ao lado do elenco de pensadoras do gênio feminino segundo Kristeva, pavimentam o caminho para algo diferente da timpanização flagrada por Derrida. Assim, este ensaio apresenta uma leitura dos caminhos oblíquos que conduzem às tensões entre a sensação e o pensamento, no cruzamento entre Ética e Estética, sugerindo alguns recortes textuais característicos da singularidade da escrita produzida por mulheres.
História e memória do Centro Educacional Martinho Lutero no contexto da construção de Palmas-TO
Authors: Hannisch Renato Luiz , Maldonado Daniela Patrícia Ado , Santos Jocyléia Santana dos
Published: July 2018

Este artigo tem por objetivo descrever a implantação da Instituição Educativa Centro Educacional Martinho Lutero na cidade de Palmas/TO – Instituição que aos 500 anos da Reforma Protestante completa 25 anos de atuação na capital tocantinense. Tem como recorte temporal o período compreendido entre os anos 1992 a 2004, considerados, na pesquisa realizada, como o período de implantação desta unidade da Universidade Luterana do Brasil na Capital do Tocantins. Trata-se de um estudo de caso, utilizando-se da metodologia História Oral Temática, recorrendo às memórias dos sujeitos que participaram do período e aos registros da memória acerca da história oficial produzida pela Instituição. A pesquisa proporcionou conhecer diferentes aspectos da materialidade e da representação da Instituição, além das aprendizagens vividas pelos seus alunos, revelando como as Instituições Educativas, como “organismos vivos”, interagem com a sociedade à sua volta. Os relatos dos entrevistados proporcionaram poder conhecer: como o Centro Educacional Martinho Lutero procurou manter sua atuação face ao crescente número de Instituições Educacionais que passaram a atuar na Capital ao longo do período; alterações na estrutura física, pedagógica e humana para manter-se no mercado educacional da Capital em construção; e, como a confessionalidade luterana se fez presente ao longo do período.
O sociograma e os processos grupais: uma experiência no campo educacional
Authors: Ferreira Aurino Lima , Brasil Tatiana Lima , Acioly-Régnier Nadja Maria
Published: July 2018

Esta pesquisa objetivou apresentar os deslocamentos grupais vivenciados por quatorze adolescentes que faziam parte de uma experiência educativa que buscava promover o desenvolvimento de relações interpessoais. Através de sociogramas indicamos o lugar que cada participante ocupou dentro do grupo; os líderes e as configurações de subgrupos, isolados, periféricos e solitários que se formaram na sua constelação antes e após a intervenção. Apontamos um aumento das relações congruentes no espaço grupal, sugerindo uma melhoria das relações grupais. O uso do sociograma pode fornecer elementos para o planejamento de intervenções com vistas a melhoria na qualidade das relações interpessoais no campo educacional.
Perfil profissional docente no Brasil
Authors: Rodrigues Bárbara Barros Chacur
Published: July 2018

Resenha do Documento “Perfil Profissional Docente no Brasil: metodologias e categorias de pesquisas”. Inep-MEC, 2015.
A influência de Lutero na pesquisa brasileira em educação: uma nova perspectiva teórica
Authors: Pauly Evaldo Luis , Graff Anselmo Ernesto
Published: July 2018

Este ensaio discute a influência de Lutero na educação a partir da dialética entre sua eclesiologia, antropologia e catequética. Apresenta a experiência da cidade de Leisnig e a polêmica de Lutero contra a noção antropológica do livre arbítrio de Erasmo, demonstrando como esta antropologia “pessimista” se articula em uma didática “otimista” nos Catecismos Maior e Menor. A metodologia utiliza a pesquisa bibliográfica e análise documental de textos eclesiais, antropológicos e catequéticos. Os resultados apontam para três possíveis contribuições de Lutero para a pesquisa brasileira em Educação: 1) A escola que atende ao interesse eclesial da Reforma é a escola pública, universal e gratuita; 2) Lutero se contrapõe aos pedagogos humanistas de seu tempo e sua visão otimista do ser humano, afirmando a tese de que a pessoa é boa e má ao mesmo tempo e que essa tensão só se resolve através da justificação pela fé; 3) O objetivo pedagógico dos Catecismos é atender aos anseios das pessoas em suas vidas cotidianas e laborais, a partir de uma pedagogia sensível e teleológica. A conclusão demonstra em dois casos exemplares como a metodologia teológica de Lutero pode contribuir em temas polêmicos sobre os quais a pesquisa em Educação ainda não possui consensos sólidos, como são a formação para a cidadania e a crítica à influência da globalização no campo da política educacional.
Direito à Educação e 500 anos de Reforma Protestante: as contribuições de Martinho Lutero
Authors: Barbosa Luciane Muniz Ribeiro , Assis Ana Elisa Spaolonzi Queiroz
Published: July 2018

O presente artigo busca ressaltar as contribuições de Martinho Lutero para a educação no movimento da Reforma Protestante, analisando-se os princípios que permaneceram, cinco séculos depois, no que se refere ao direito à educação. Foi realizada pesquisa bibliográfica, considerando-se os textos de autoria do próprio Lutero, bem como de historiadores da educação e autores vinculados ao debate sobre o direito à educação. Para tanto, são levantadas questões relacionadas à concepção do direito à educação na atualidade, tanto aquelas consideradas internacionalmente quanto seu histórico no Brasil, para, em seguida, resgatar as propostas de Lutero para a educação escolar no movimento da Reforma. Os resultados apresentam as propostas de Lutero defendendo uma educação escolar para todos, com caráter obrigatório e gratuito e responsabilizando o Estado pela sua oferta, manutenção e supervisão, destacando que tais princípios permanecem presentes, 500 anos após a Reforma Protestante, sendo garantidos no ordenamento jurídico brasileiro, sem quem necessariamente tenha se tornado realidade para todos.
A presença de Lutero no Brasil: o poder da fé, a imigração alemã e a educação
Authors: Santos Ademir Valdir dos , Cecchetti Elcio
Published: July 2018

Este estudo objetiva discutir, com base nas relações entre imigração alemã, luteranismo e instituições escolares, o processo histórico de incorporação de concepções educacionais de Lutero e sua influência na fundação de escolas no sul do Brasil, num período entre a segunda década do século XIX e as primeiras décadas do século XX. É embasado em referencial bibliográfico e por pesquisa documental que usa fontes referentes à criação de escolas. As análises são parametrizadas por textos de Lutero e estudos que tratam de nexos entre religião e escolarização. Os resultados evidenciam a importância atribuída por Lutero à escola, caracterizando-o como um reformador religioso da Educação. E indicam que a criação de escolas por comunidades com imigrantes alemães luteranos em áreas meridionais do Brasil pode ser justificada pelo seu fundamento em concepções de Lutero. As escolas foram fundadas para que as crianças e jovens pudessem acessar aos princípios da religião e enfrentar a vida em um país de hábitos culturais diferentes. Tanto no contexto do Império como no republicano, esses motivos foram reforçados pela ausência de instituições de instrução primária mantidas pelo governo. Sobretudo, as escolas comunitárias erigidas em meio às colônias representaram respostas à solicitação divina de intervir na educação humana de acordo com a fé, podendo ser vistas como fruto do luteranismo.
Percepções dos gestores de escolas públicas municipais de Campinas – SP sobre o Programa Bolsa Família
Authors: Santos Lineu , Pires André
Published: July 2018

Este artigo apresenta resultados de uma investigação que entrevistou gestores, diretores e coordenadores pedagógicos de 4(quatro)escolas municipais de Campinas - SP localizadas em regiões de maior vulnerabilidade social e que atingiram o Índice de Desenvolvimento da Educação Básica - IDEB projetado para 2013. A pesquisa teve como objetivo identificar se, em escolas com alunos bolsistas do Programa Bolsa Família (PDF) e relativamente bem avaliadas pelo IDEB, haveria algum tipo de discussão ou de prática pedagógica relacionada aos beneficiários. As entrevistas realizadas nestes locais apontaram para um conhecimento por parte dos gestores em relação ao PBF, com maior ênfase na frequência escolar e também mostrou que não se desenvolvem práticas pedagógicas voltadas especificamente a este público, esta questão causou surpresa aos gestores escolares. A inexistência de tais práticas, na visão dos entrevistados se dá a fim de evitar a discriminação dos bolsistas ou pelos efeitos da pobreza serem invisibilizados dentro deste ambiente, assim os entrevistados acreditam no potencial do Programa, mas são céticos em relaçãoao rompimento do chamado ciclo intergeracional da pobreza.
Rede de Suporte Social de Mães de Crianças com Paralisia Cerebral em Belém do Pará
Authors: De Souza Yuri Leandro Do Carmo , Freire Viviam Rafaela Barbosa Pinheiro , Cunha Katiane Da Costa , Silva Simone Souza da Costa
Published: July 2018

O estudo de redes sociais permite localizar estruturas dentro de redes e observar a dinâmica do grupo em função das relações dos membros entre si. O objetivo deste trabalho foi analisar a rede social pessoal de mães de crianças com paralisia cerebral em relação ao tipo de apoio oferecido, frequência de contato e intensidade de relações estabelecidas. A pesquisa foi submetida ao Comitê de Ética do Instituto Evandro Chagas, com parecer favorável (1.758.751), seguindo o previsto pela Resolução nº 510, de 07 de abril de 2016 do Conselho Nacional de Saúde. Participaram deste estudo 30 cuidadores de crianças com paralisia cerebral atendidas em dois serviços especializados em reabilitação e desenvolvimento infantil em Belém do Pará. Foram aplicados um questionário sócio-demográfico e um questionário de Redes Sociais Pessoais. Os dados foram analisados com auxílio do pacote estatístico SPSS, versão 20.0 e do software de análise de redes sociais Egonet. Os resultados apontaram o predomínio de vínculos do tipo familiar, com redes compostas em maioria por adultos que ofertam apoio do tipo “afeto e carinho”. Este estudo confirmou os dados da literatura ao indicar que as redes sociais podem funcionar como importantes fontes de apoio a cuidadores de crianças com paralisia cerebral.
Modulação da cicatrização na cirurgia do glaucoma após aplicação de acetato de triancinolona subconjuntival isolado ou em associação à mitomicina C: estudo experimental
Authors: Rangel Hayana Marques do Aragão , Rolim Hévila Tamar , Vidigal Paula , Araújo Ivana Duval de , Cronemberger Sebastião
Published: July 2018

RESUMO Objetivo: estudar a eficácia e segurança do uso de acetato de triancinolona subconjuntival isolado ou em associação à mitomicina C como modulador da cicatrização de trabeculectomias em coelhos. Métodos: trinta coelhos machos, albinos, raça Nova Zelândia foram submetidos à trabeculectomia bilateralmente. Os animais foram divididos em quatro grupos experimentais com 15 olhos por grupo: controle, mitomicina C, acetato de triancinolona e acetato de triancinolona + mitomicina C. Tonometria de aplanação e análise clínica da bolha através do Sistema de Graduação de Moorfields foram obtidas no pós-operatório. Para a avaliação da cicatrização, procedeu-se à análise quantitativa do infiltrado inflamatório (polimorfonucleares) através da coloração Hematoxilina & Eosina e da proliferação vascular por imuno-histoquímica. Resultados: foi observada em todos os grupos diminuição significativa da pressão intraocular pós-operatória em relação à pré-operatória (p<0,001). Contudo, não houve diferença entre os grupos (p=0,186). O grupo acetato de triancinolona + mitomicina C apresentou melhores índices na altura máxima da bolha e na vascularização da área central da bolha (p=0,001); além disso, houve menor resposta inflamatória (p=0,001) e menor proliferação vascular (p=0,001) na fase intermediária do estudo em relação às monoterapias. Conclusão: a associação da mitomicina C ao acetato de triancinolona resultou numa ação sinérgica entre esses agentes, com bolhas mais amplas e difusas e menor infiltrado inflamatório e menor proliferação vascular em estágio intermediário do acompanhamento neste modelo animal.
A fenomenologia do inconsciente na obra de Machado de Assis
Authors: Peres Savio Passafaro
Published: July 2018

Resumo Neste artigo buscamos, em primeiro lugar, elucidar como Machado de Assis desenvolveu a concepção de inconsciente no romance Helena (1876) e no conto Uma senhora (1883). Em segundo lugar, examinamos como sua concepção de inconsciente pode ser elucidada fenomenologicamente, a partir da relação entre consciência reflexiva e pré-reflexiva. Nestas narrativas, Machado revela como certas emoções, embora não sejam apreendidas reflexivamente pelo sujeito que as vive, manifestam-se indiretamente nas ações, nas expressões corporais e no modo de compreender o mundo.
Adoção de Resposta Rápida e gerenciamento de estoques no fast fashion: dois estudos de caso em Minas Gerais
Authors: Golobovante André Filipe Moraes , Ribeiro Priscilla Cristina Cabral , Gomes Carlos Francisco Simões
Published: July 2018

Resumo O modelo de negócio adotado por uma empresa deve ser alinhado à definição de estratégias operacionais, que concedam agilidade e flexibilidade necessárias aos suprimentos, à produção e à distribuição. A Resposta Rápida (Quick Response - QR) é uma estratégia operacional em crescimento nas indústrias e sua finalidade é reduzir o tempo despendido nas etapas de produção, para que seja possível desenvolver os produtos poucas semanas antes do período de venda. A QR é especialmente relevante para a estratégia de negócio denominada fast fashion, que exige giro de estoque elevado, inserção frequente de novos produtos nos pontos de venda, agilidade na cadeia de suprimentos (CS) e assertividade na identificação de tendências. O objetivo do artigo é identificar como essa estratégia pode ser operacionalizada via QR e gestão de estoques em dois estudos de caso na indústria de vestuário em Minas Gerais. O estudo adotou uma abordagem qualitativa, com documentação direta como técnica de pesquisa, o método de estudo de caso. Foi observado que uma empresa atua de acordo com a estratégia fast fashion, enquanto a outra – devido à falta de aplicação da QR e pouca eficiência na gestão dos estoques – não obteve sucesso na adoção dessa estratégia de negócios.
Produção de lentes orgânicas no Pólo Industrial de Manaus
Authors: Cury Pedro Henrique Araújo , Saraiva José
Published: July 2018

Resumo Este artigo apresenta um estudo de caso sobre a utilização da técnica de tempos e métodos aplicado em uma linha de produção de lentes orgânicas de uma empresa multinacional, localizada no Pólo Industrial de Manaus, Amazonas. O objetivo deste artigo é viabilizar a inserção de pausas de cinco minutos a cada uma hora de produção, mantendo a produtividade sem alterar a demanda ou aumentando a carga horária dos operadores. De forma específica, utilizou-se as principais técnicas de tempos e métodos para otimizar as operações, identificando atividades agregadoras ou não de valor, além de desperdícios. O estudo de caso descreve a situação em que se encontra a organização, a situação proposta, o tratamento de dados e os resultados obtidos.